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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Estudo dos efeitos da Síndrome dos Ovários Policísticos sobre o controle autonômico cardiovascular, com enfoque na sensibilidade barorreflexa e na variabilidade da frequência cardíaca e da pressão arterial - análises pelos métodos linear e não-linear / Study of the effects of Polycystic Ovarian Syndrome on cardiovascular autonomic control, focusing on baroreflex sensitivity and on the variability of heart rate and blood pressure - analysis by linear and nonlinear methods

Stella Vieira Philbois 29 September 2017 (has links)
A Síndrome dos Ovários Policísticos (SOP) afeta uma grande parcela da população feminina em idade reprodutiva. Além das alterações morfológicas, hormonais e metabólicas, essas mulheres também apresentam uma alta prevalência de obesidade e alterações no controle autonômico cardiovascular de acordo com a literatura, principalmente modificações na modulação autonômica da variabilidade da frequência cardíaca (VFC). No entanto, pouco sabemos sobre outros parâmetros do controle autonômico, como a variabilidade da pressão arterial (VPA) e a sensibilidade barorreflexa (SBR). Portanto, o principal objetivo do estudo foi investigar em mulheres com a SOP as alterações na modulação autonômica da VPA e na SBR, bem como avaliar se essas alterações são decorrentes da SOP ou do aumento da gordura corporal. Para tanto, foram estudadas 30 mulheres voluntárias eutróficas (IMC ? 25 kg/m2) sem a SOP e 60 mulheres voluntárias com a SOP divididas em dois grupos: eutróficas (IMC ? 25 kg/m2; N=30) e obesas (IMC ? 30 kg/m2; N=30). Todas as mulheres foram submetidas aos seguintes protocolos; coleta de sangue para hemograma completo; avaliação antropométrica e avaliação de parâmetros metabólicos e hormonais em repouso; registro de parâmetros hemodinâmicos e cardiorrespiratórios em repouso e durante o exercício físico; análise da VFC e da VPA; e análise da SBR espontânea. A comparação entre os grupos eutróficos com e sem SOP não apresentou qualquer diferença nos parâmetros autonômicos avaliados. No entanto, a comparação entre os grupos SOP mostrou que o grupo SOP obeso apresentou menores valores de VO2 e testosterona, e maiores valores de triglicerídeos e da pressão arterial em relação ao grupo SOP eutrófico. Quanto aos parâmetros autonômicos, os grupos obeso e eutrófico não diferiram na análise da VPA. Entretanto, o grupo SOP obeso apresentou menores valores da SBR espontânea e das oscilações de baixa frequência (LF) da VFC em unidades absolutas. Por fim, nossos resultados sugerem que a obesidade pouco alterou a VFC em mulheres com SOP, entretanto reduziu sensivelmente a SBR espontânea. Esses achados podem estar associados com diferenças hormonais encontradas nessas mulheres, como os níveis séricos de testosterona mais elevados no grupo eutrófico. / Polycystic Ovarian Syndrome (PCOS) affects a large proportion of the female population at reproductive age. In addition to morphological, hormonal and metabolic alterations, these women also present a high prevalence of obesity and alterations in cardiovascular autonomic control according to the literature. Mainly modifications in the autonomic modulation of heart rate variability (HRV). However, we do not know much about other parameters of autonomic control, such as blood pressure variability (APV) and baroreflex sensitivity (SBR). Therefore, the main objective of the study was to investigate in women with PCOS changes in the autonomic modulation of APV and SBR, as well as to assess whether these alterations are due to PCOS or increased body fat. In order to do, 30 eutrophic non-PCOS voluntary women (BMI ? 25 kg / m2) and 60 voluntary PCOS women who were studied in two groups: PCOS eutrophic (BMI ? 25 kg / m2, N = 30) and PCOS obese women (BMI ? 30 kg / m2, N = 30). All the women were submitted to the following protocols; collection of blood for complete blood count; anthropometric evaluation and evaluation of metabolic and hormonal parameters at rest; recording of hemodynamic and cardiorespiratory parameters at rest and during physical exercise; analysis of HRV, APV and spontaneous SBR analysis. The comparison between the eutrophic PCOS and nonPCOS groups showed no difference in the autonomic parameters evaluated. However, the comparison between the PCOS groups showed that the PCOS obese group presented lower values of VO2 and testosterone, and higher triglyceride values and blood pressure in relation to the PCOS eutrophic group. Regarding the autonomic parameters, the PCOS obese and eutrophic groups did not differ in the APV analysis. However, the PCOS obese group presented lower values of spontaneous SBR and low frequency oscillations (LF) of HRV in absolute units. Finally, our results suggest that obesity did not significantly alter HRV in women with PCOS, but it significantly reduced spontaneous SBR. These findings may be associated with hormonal differences found in these women, such as higher serum testosterone levels in the PCOS eutrophic group.
12

Μελέτη των πολυμορφισμών των γονιδίων του υποδοχέα της βαζοπρεσίνης και του υποδοχέα ανδρογόνων και συσχέτισή τους με τη σεξουαλική συμπεριφορά και γενετική προδιάθεση σε γυναίκες με σύνδρομο πολυκυστικών ωοθηκών / The study of genetic polymorhisms of the androgen and vasopressin receptor genes and their correlation with sexual behaviour and genetic predisposition in women with Polycystic Ovarian Syndrome

Δαμιανάκη, Αικατερίνη 03 December 2014 (has links)
Η συμμετοχή της γενετικής, έναντι της περιβαλλοντικής επίδρασης στη συμπεριφορά αποτελεί θεμελιώδες ερώτημα για τις νευροεπιστήμες και αποτελεί πεδίο έντονου ερευνητικού ενδιαφέροντος. Η σεξουαλικότητα είναι μια σύνθετη αλληλεπίδραση πολλαπλών παραγόντων, συμπεριλαμβανομένων ανατομικών, φυσιολογικών, ψυχολογικών, αναπτυξιακών, πολιτιστικών και σχεσιακών παραγόντων. Παρά την υψηλή συχνότητα εμφάνισης της γυναικείας σεξουαλικής δυσλειτουργίας, λιγότερη έμφαση έχει δοθεί στη μελέτη της από την επιστημονική κοινότητα. Το βιολογικό και ψυχολογικό υπόβαθρό της παραμένει ένα υποσχόμενο πεδίο έρευνας καθώς οι διαθέσιμες θεραπείες είναι πολύ λιγότερες συγκριτικά με την ανδρική σεξουαλική δυσλειτουργία. Η σεξουαλική λειτουργία των γυναικών έχει μελετηθεί κατά καιρούς στο σύνδρομο των πολυκυστικών ωοθηκών, λαμβάνοντας υπόψη ερωτηματολόγια σεξουαλικής δραστηριότητας και επίπεδα φυλετικών ορμονών αλλά όχι τους γενετικούς πολυμορφισμούς που μπορεί να εμπλέκονται και να δημιουργούν συγκεκριμένο βιολογικό υπόβαθρο. Η αλληλεπίδραση ορμονών, νευροδιαβιβαστών και περιβαλλοντικών παραγόντων είναι ευρέως αποδεκτή στη διαμόρφωση του υποστρώματος της γυναικείας σεξουαλικότητας αλλά οι τρόποι παραμένουν ακόμα ασαφείς. Για το λόγο αυτό, ο σκοπός της παρούσας μελέτης ήταν η συσχέτιση των πολυμορφισμών του ανδρογονικού υποδοχέα και του υποδοχέα της βαζοπρεσίνης με τη γυναικεία σεξουαλικότητα στις γυναίκες με σύνδρομο πολυκυστικών ωοθηκών. Η επίδραση των ανδρογόνων στη γυναικεία σεξουαλικότητα αποτελεί πεδίο έντονου ερευνητικού ενδιαφέροντος καθώς οι μηχανισμοί αλληλεπίδρασης είναι ιδιαίτερα πολύπλοκοι. Τα ανδρογόνα ασκούν τη δράση τους μέσω πρόσδεσης και ενεργοποίησης των ανδρογονικών υποδοχέων. Το γονίδιο του υποδοχέα των ανδρογόνων αποτελείται από δύο μοτίβα πολυμορφικών επαναλήψεων CAG & GGN που κωδικοποιούν ποικίλου μήκους πολυγλουταμινικών και πολυγλυκινικών περιοχών αντίστοιχα. Έχει επίσης φανεί ότι το αυξημένο μήκος της CAG επαναληπτικής αλληλουχίας πιθανόν να σχετίζεται με μειωμένη δραστικότητα του AR και ως εκ τούτου και με διαταραχές που σχετίζονται με μειωμένη δράση ανδρογόνων Διάφορα νευροπεπτίδια όπως η βαζοπρεσίνη, η αδενοκορτικοτροπίνη, η ωκυτοκίνη κ.α. επιδρούν στην ενήλικο σεξουαλική συμπεριφορά διαφόρων οργανισμών. Η βαζοπρεσίνη και ο υποδοχέας της αποτέλεσαν αντικείμενο μελέτης για την ερμηνεία της ανθρώπινης κοινωνικής και σεξουαλικής συμπεριφοράς. Οι πολυμορφισμοι του AVPR έχουν επίσης σχετιστεί με αλτρουισμό, με μονογαμία και ανάπτυξη σχέσεων δεσμού, γνώση μουσικής και χορού που αντανακλούν αρχέγονες κοινωνικές αλληλεπιδράσεις όπως ιεροτελεστικές κινήσεις και επικοινωνία μέσω ήχων. Το γονίδιο του υποδοχέα της βαζοπρεσίνης διαθέτει τέσσερα μικροδορυφορικά μοτίβα. Ακολουθώντας τις μελέτες στον αρουραίο του αγρού (vole), η προσοχή έχει κυρίως επικεντρωθεί στις μικροδορυφoρικές επαναλήψεις στην περιοχή του υποκινητή. Πρόκειται για τις RS1 {(GATA)14} και RS3 {(CT)4-TT-(CT)8-(GT)24}, που είναι εξαιρετικά πολυμορφικές. Σκοπός της παρούσας εργασίας είναι η διερεύνηση της συσχέτισης της πολυμορφικής CAG περιοχής του ανδρογονικού υποδοχέα και του RS1 πολυμορφισμού του υποδοχέα της βαζοπρεσίνης με την γυναικεία σεξουαλική συμπεριφορά στο σύνδρομο των πολυκυστικών ωοθηκών. Για το λόγο αυτό η παρούσα μελέτη συμπεριέλαβε 40 γυναίκες με σύνδρομο πολυκυστικών ωοθηκών και 94 υγιείς γυναίκες, στις οποίες διενεργήθηκαν ορμονικοί προσδιορισμοί, ψυχομετρικά τεστ για αξιολόγηση της σεξουαλικής λειτουργίας τους και διερεύνηση της συσχέτισης με τα γονοτυπικά τους χαρακτηριστικά (αριθμός επαναλήψεων των πολυμορφικών μοτίβων στα αλληλόμορφά τους). Τα αποτελέσματα της παρούσας εργασίας έδειξαν ότι στην κατηγορία των γυναικών με PCOS η ενεργότητα του υποδοχέα συσχετίστηκε με μειωμένα επίπεδα oιστρογόνων και με αυξημένη ικανοποίηση, γεγονός που υποδηλώνει ότι σε καθεστώς περίσσειας ανδρογονικού ερεθίσματος η γυναικεία σεξουαλικότητα επάγεται. Επίσης στην ίδια ομάδα γυναικών φάνηκε συσχέτιση μεταξύ των υψηλών επιπέδων FSH και των υψηλών αριθμών επαναλήψεων του RS1 πολυμορφισμού, υποδεικνύοντας έναν κεντρικό ρόλο του AVPR στη ρύθμιση της ωοθυλακιορρηξίας των γυναικών με σύνδρομο πολυκυστικών ωοθηκών. / The contribution of genetic versus environmental influence in behavioral analysis is a fundamental question for neuroscience and it is also an area of strong research interest, Sexuality is distinguished by a complex interaction between anatomic, physiologic, psychological, developmental, relational and cultural factors. Despite the high frequency of sexuality disorders in women, scientists have not placed emphasis on this. The biological and psychological background of women’s sexuality disorder still remains a promising field of research, since the available therapies are fewer than those that are used in male sexual dysfunction. Female sexuality has been studied frequently in women with PCOS and has been based on questionnaires of female’s sexual functionality and serum levels of sex steroid hormones. These studies didn’t take account of the genetic polymorphisms which can be involved in a specific biological background. The interaction of hormones, neurotransmitters and environmental factors is widely accepted in the composition of female’s sexual function but the ways that this interaction happens are still unclear. Thus, the aim of our study was to consider the possible association between the genetic polymorphism of androgen receptor gene and vasopressin receptor gene and female sexuality in women with PCOS. The influence of androgens in female sexuality is a field of intense interest in the scientific community, but the ways this interaction occurs are very complicated. Androgens bind and activate androgen receptors.The androgen receptor gene consists of eight exons and encodes a protein with 919 amino acid residues. Exon 1 of the gene consists of two polymorphic repeat (CAG and GGN) motifs, encoding variable lengths of polyglutamine and polyglycine stretches, respectively. Also, it has been proposed that that the increased length of the CAG repeat should associate with decreased AR activity and hence the disorders related to the reduced androgen actions. Many neuropeptides such as vasopressin, oxytocin, adrenocorticotropic hormone (ACTH) etc, affect sexual behavior in many species. Vasopressin and it’s receptor has been well studied in order to interpret human social and sexual behavior. The genetic polymorphisms of the vasopressin receptor gene has been also associated with altruism, monogamy, pair bonding, musical and dancing ability. The latter reflects primitive social interactions such as ritual movements and vocalization. Vasopressin receptor gene is distinguished by three microsatellites in the 5’ flanking region and a fourth in the single intron. Following the vole studies, attention has been primarily focused on two microsatellites in the promoter region, RS1 {{GATA)14} and RS3 {(CT)4-TT-(CT)8-(GT)24}, which are highly polymorphic. The aim of our study is to investigate the association between the polymorphic CAG region of androgen receptor gene and RS1 polymorphism of vasopressin receptor gene with sexual behavior in women with PCOS. Thus, our study included 40 women with PCOS and 94 healthy women. We performed hormonal analysis, psychometric tests to evaluate their sexual functionality and looked into the association with their genetic characteristics (the number of repeats of polymorphic motifs in their alleles). Our results showed that androgen receptor’s activity is associated with low estrogen levels and high sexual satisfaction in women with PCOS. This indicates that in a state of androgen excess, female sexuality is induced. In the same group of women, we noted an association between high levels of FSH and a high number of repeats of RS1 polymorphism. This suggests a central role of vasopressin receptor in the regulation of ovulation in women with PCOS.
13

The role of fructose restriction in addition to dietary modifications for weight loss and lifestyle improvement, on fertility outcome and other markers of metabolic syndrome (MS), in obese women with polycystic ovarian syndrome (PCOS)

Weidemann, Annchen 12 1900 (has links)
Thesis (MNutr)--Stellenbosch University, 2012. / ENGLISH ABSTRACT: The role of fructose restriction in addition to dietary modifications for weight loss and lifestyle improvement, on fertility outcome and other markers of metabolic syndrome, in obese women with polycystic ovarian syndrome (PCOS) Introduction: At the time at which the current study was undertaken no data, as yet, existed on whether restriction of fructose, while treating obese patients with PCOS for weight loss, improves the clinical symptoms and metabolic/anthropometric profile so as to promote fertility. Objectives: To evaluate the baseline intake of fructose, as well as the effect of restricting fructose intake from fruit and soft beverages to less than 20 g daily, as well as to provide guidelines for weight loss on anthropometric measurements, for improving subjective clinical symptoms, and for promoting fertility outcome in obese patients with PCOS, who seek to become fertile. Methods: The study was conducted in the Tygerberg Hospital Infertility Clinic, as an experimental cohort. Patients with a body mass index (BMI) higher than 27, seeking fertility after diagnosis with PCOS, were referred for dietary consultation, and followed up 3 monthly over 1 year. At each visit anthropometric measurements and a detailed dietary history were taken and a questionnaire for clinical symptoms was completed. Results: Baselinely, 86 patients were included in the study. Averages for weight and BMI were 99.8 ± 24.3 kg and 39.2 ± 8.7kg/m2, respectively. Average baseline daily fructose intake was 167 ± 116.8g. At baseline, significant relationships were shown between fructose intake and burning feet (ρ=0.02) and frequent waking (ρ=0.02), with a trend towards nightly eating (ρ=0.07). The dropout rate after visit 1 was 50%, with a further dropout of 41% after visit 2. After 3 visits (n=18), fructose intake significantly reduced (ρ=0.018), with the significant relationships with clinical symptoms having disappeared by visit 2. After 3 visits (n=18), both weight and BMI decreased significantly (ρ=0.017) and (ρ=0.019), respectively. Fructose was tested as a covariate to BMI, with high significance (ρ=0.006) in said population group. Conclusion: Dietary intervention to reduce fructose intake proved significant for weight loss and BMI after 3 visits. Reduced fructose intake was associated with reduced clinical symptoms. With fructose being a significant covariate to BMI, it can be concluded that fructose overconsumption could possibly contribute to both clinical symptoms and elevated BMI in said study population. / AFRIKAANSE OPSOMMING: Die rol wat die beperking van fruktose speel bykomend tot dieetaanpassings en lewenstylverbetering vir gewigsverlies by oorgewig vroue met polisistiese ovariële sindroom (PCOS) in die uitkoms van fertiliteit en ander merkers van metaboliese sindroom. Inleiding: Met die aanvang van hierdie studie was daar is geen data beskikbaar oor die invloed van die beperking van fruktose in die dieet van oorgewig pasiënte met PCOS wat vir gewigsverlies behandel word nie. Dit was ook nie bekend of laasgenoemde pasiënte se kliniese simptome en metaboliese/antropometriese profiel sou verbeter met die beperking van fruktose sodat fertiliteit by hierdie pasiënte terselfdertyd ook bevorder word nie. Doelwitte: Die evaluering van die aanvanklike inname van fruktose, sowel as die beperking van fruktose afkomstig van eetbare vrugte en versoete drankies en sap tot ’n inname van minder as 20 g daagliks, tesame met riglyne vir gewigsverlies. Die uitkoms hiervan is bepaal deur antropometriese metings, die verbetering in subjektiewe kliniese simptome en die fertiliteituitkoms by oorgewig pasiënte wat hulp met fertiliteit verlang. Metodes: Die studie het as ’n eksperimentele kohort by die Infertiliteitskliniek by Tygerberg Hospitaal plaasgevind. Pasiënte wat na diagnose met PCOS fertiliteitsbehandeling verlang het en ’n BMI hoër as 27 gehad het , is vir dieetbehandeling verwys en driemaandeliks oor ’n tydperk van een jaar opgevolg. Tydens elke besoek is antropometriese metings en ’n omvattende dieetgeskiedenis geneem en ’n vraelys oor kliniese simptome ingevul. Resultate: Aanvanklik is 86 pasiënte by die studie ingesluit. Gemiddeldes vir gewig en BMI was 99.8 ± 24.3 kg en 39.2 ± 8.7 kg/m2 respektiewelik. Gemiddelde aanvanklike daaglikse inname van fruktose was 167 ± 116.8 g. Oorspronklik het betekenisvolle verhoudings tussen fruktose en die volgende bestaan: brandvoete (ρ=0.02) en veelvuldige episodes van nagtelike wakkerheid (ρ=0.02), met ’n neiging na nagtelike etery (ρ=0.07). Die uitvalsyfer na een besoek was 50% met ’n verdere uitvalsyfer van 41% na die tweede besoek. Na drie besoeke (n=18) het sowel die gewig as die BMI betekenisvolle afname getoon (ρ= 0.017) en (ρ=0.019), respektiewelik. Fruktose is as ’n belangrike kovariant vir BMI (ρ= 0.006) vir hierdie populasiegroep geïdentifiseer. Gevolgtrekking: Dieetintervensie vir die vermindering van die inname van fruktose was beduidend vir gewigsverlies en afname in BMI na drie besoeke. Verminderde fruktose-inname het gelei tot die vermindering van kliniese simptome. Met fruktose as beduidende kovariant vir BMI kan die gevolgtrekking gemaak word dat die oor-inname van fruktose by hierdie studiepopulasie waarskynlik tot sowel kliniese simptome as BMI bygedra het.
14

Avaliação do estresse oxidativo e expressão de genes envolvidos com síntese e oxidação de ácidos graxos em modelo animal de síndrome dos ovários policísticos tratado com metformina e submetida ao exercício físico / Evaluation of oxidative stress and expression of genes involved with fatty acid synthesis and oxidation in animal model of polycystic ovary syndrome treated with metformin and physical exercise

Gonçalves, Thiago Hideki 04 December 2017 (has links)
Introdução: A síndrome dos ovários policísticos (SOP) é um distúrbio endócrino complexo com aspectos reprodutivos e metabólicos. Alterações do tecido adiposo participam da fisiopatologia da síndrome e anormalidades do metabolismo de ácidos graxos, bem como o estresse oxidativo, parecem ter papel importante nesse processo. Assim, tanto o exercício físico como a metformina são comumente recomendadas. O objetivo deste estudo foi avaliar a expressão de genes envolvidos com a síntese e oxidação dos ácidos graxos e com os níveis de estresse oxidativo no tecido adiposo de ratas com modelo experimental de SOP tratadas com metformina (Met), submetidas ou não a exercício físico em esteira (Ex). Métodos: Foram utilizadas 46 ratas, Wistar, que receberam no 2º dia de vida, uma única injeção subcutânea de propionato de testosterona (1,25 mg) para a indução de estado de estro permanente e óleo de sésamo (controles). Com 80 dias de idade iniciou-se o experimento e os animais foram divididos em 5 grupos: 1) Controle; 2) SOP ; 3) SOP+Met; 4) SOP+Ex; 5) SOP+Met+Ex.Os tratamentos tiveram duração de 6 semanas. Os animais foram sacrificados aos 120 dias de vida e foram retirados os depósitos das gorduras inguinal e mesentérica. Os depósitos de gordura inguinal e mesentérica foram utilizados para análise da expressão dos genes Acaca, Srebp1, Cpt1 e Cd36, por PCR quantitativo em tempo real, e dos níveis de estresse oxidativo pela dosagem das glutationas reduzida (GSH) e oxidada (GSSG). Adicionalmente, o tamanho dos adipócitos foi analisado por histomorfometria. Resultados: Na análise histomorfométrica dos adipócitos da gordura mesentérica, houve diminuição significativa no grupo SOP+Met+Ex em relação ao grupo SOP. O grupo SOP apresentou hipertrofia em relação ao grupo controle. A análise na gordura inguinal não apresentou nenhuma diferença entre os grupos.Não houve diferença estatística entre os grupos nas análises de expressão gênica das gorduras mesentérica e marrom. Não identificamos diferenças nas medidas de estresse oxidativo (razões GSH/GSSG ,GSH, GSH total, GSSG e razão GSH/GSSG) no tecido adiposo subcutâneo, mesentérico, perigonadal e marrom entre os depósitos de gordura dos animais em nenhum dos grupos avaliados / Introduction: Polycystic ovary syndrome (PCOS) is a complex endocrine disorder, affecting both reproductive and endocrine systems. Changes in adipose tissue are involved in the pathophysiology of the syndrome, and abnormalities of fatty acid metabolism, as well as oxidative stress, appear to play an important role in this process. Thus, both physical exercise and metformin are commonly recommended. The objective of this study was to evaluate the expression of genes involved in the synthesis and oxidation of fatty acids and oxidative stress levels in adipose tissue of in an experimental model of PCOS using Wistar rats. Methods: 46 rats, Wistar, treated with a single subcutaneous injection of testosterone propionate (1.25 mg) for the induction of permanent estrus status (PCOS model) or sesame oil (controls) on the 2nd day of life. Experimental phase of the study was started when animals completed 80 days of age. They were divided into 5 groups: 1) Control; 2) PCOS; 3) PCOS+ Met; 4) PCOS + Ex; 5) PCOS + Met + Ex. Intervention lasted 6 weeks. Animals were sacrificed at 120 days of age and the deposits of inguinal and mesenteric fat were removed. Inguinal and mesenteric fat deposits were used to analyze the expression of Acaca, Srebp1, Cpt1 and Cd36 genes by quantitative realtime PCR and oxidative stress levels by reduced (GSH) and oxidized glutathione (GSSG). In addition, adipocyte size was analyzed by histomorphometry. Results: In the histomorphometric analysis of mesenteric fat adipocytes, there was a significant decrease in the PCOS + Met + Ex group in relation to the PCOS group. PCOS group presented hypertrophy in relation to the control group. Inguinal fat analysis did not present any differences between the groups. There was no statistical difference between groups in analyzes of gene expression of mesenteric and brown fats. We did not identify differences in oxidative stress measurements (GSH / GSSG, GSH, total GSH, GSSG and GSH / GSSG ratio) in the subcutaneous, mesenteric, perigonadal and brown adipose tissue among the fat deposits of the animals in any of the evaluated groups
15

Comprimento do telômero e atividade da telomerase em células do cumulus de mulheres com Síndrome dos Ovários Policísticos / Telomere length and telomerase activity in cumulus cells of women with Polycystic Ovarian Syndrome

Pedroso, Daiana Cristina Chielli 30 May 2018 (has links)
A Síndrome dos Ovários Policísticos (SOP) representa um dos distúrbios endócrinos reprodutivos mais comuns em mulheres em idade reprodutiva. As mulheres com SOP normalmente respondem bem ao tratamento de reprodução assistida (TRAs), mas frequentemente apresentam oócitos de baixa qualidade e capacidade reprodutiva, a qual está correlacionado com a interação do oócito com as células do cumulus. A baixa qualidade oocitária pode estar relacionada a perda de estabilidade genômica do oócito, ou até mesmo das células do cumulus, o que pode levar a uma redução gradativa da fertilidade feminina. Os telômeros e a atividade da telomerase possuem um papel fundamental na manutenção da estabilidade genômica e são considerados importantes marcadores de viabilidade celular, podendo ser um indicativo da qualidade oocitária. O objetivo do estudo foi avaliar o comprimento do telômero e atividade da telomerase nas células do cumulus de mulheres com SOP. Neste estudo prospectivo caso-controle foram incluídas 110 voluntárias, sendo 43 mulheres com SOP e 67 controles no período de Setembro de 2015 a Junho de 2017. Foram avaliados os dados como idade, Índice de massa corporal (IMC), hormônio luteinizante (LH), hormônio folículo estimulante (FSH), globulina de ligação de hormônios sexuais (SHBG), prolactina, estradiol, insulina, testosterona total, androstenediona, índice de androgênio livre (FAI), homocisteína e proteína c-reativa. Foi avaliado o comprimento do telômero nas células do cumulus de oócitos imaturos (CCI), nas células do cumulus de oócitos maduros (CCM), nos oócitos imaturos no estágio de vesícula germinativa (VG), nos oócitos imaturos em metáfase I (MI) e nos leucócitos pelo método quantitativo da reação em cadeia da polimerase (qPCR). A atividade da telomerase das CCI, CCM, dos oócitos VG e MI foram avaliadas pelo Kit TRAPeze® XL. A análise estatística foi determinada pelo teste Mann-Whitney, regressão linear múltipla e correlação de Spearman. Os resultados foram que as variáveis IMC (p=0,001), LH (p=0,015), estradiol (p=0,004), insulina (p=0,002), testosterona (p<0,0001), androstenediona (p=0,001), FAI (p<0,0001) e proteína c-reativa (p=0,003) foram maiores no grupo SOP. FSH (p=0,0002) foi menor no grupo SOP. A prolactina e a homocisteína não diferiram entre os grupos. O comprimento do telômero nas CCI não diferiu entre os grupos SOP e controle (1,60±0,56 vs 1,58±0,33; p=0,649, respectivamente), bem como o comprimento do telômero nas CCM não diferiu entre os grupos SOP e controle (1,61±0,47 vs 1,70±0,43; p=0,378, respectivamente). Entretanto, nos leucócitos o comprimento do telômero foi menor no grupo SOP (p=0,025). A atividade da telomerase nas CCI foi maior no grupo SOP do que no grupo controle (1,62±1,49 vs 0,30±0,42; p=0,003, respectivamente) e a atividade da telomerase nas CCM também foi maior no grupo SOP do que no grupo controle (1,39±1,63 vs 0,55±0,84; p=0,022, respectivamente). O comprimento do telômero e a atividade da telomerase nos oócitos VG e MI não diferiu entre os grupos. Uma correlação positiva foi observada entre a atividade da telomerase e o comprimento do telômero nas CCI no grupo controle (p=0,051). O grupo SOP apresentou uma correlação positiva entre a atividade da telomerase e o comprimento do telômero, porém nas CCM (p=0,048). Foi observada uma correlação positiva do comprimento do telômero entre as células (leucócitos, CCI e CCM) em ambos os grupos. Os dados sugerem que a SOP parece não afetar o comprimento do telômero nas CCI e CCM, apenas nos leucócitos. Por outro lado, uma maior atividade da telomerase nas CCI e CCM pode ser necessária para a manutenção do comprimento telomérico à nível reprodutivo nas mulheres com SOP. / Polycystic Ovarian Syndrome (PCOS) represents one of the most common reproductive endocrine disorders in women of reproductive age. Women with PCOS, despite responding well to Assisted Reproduction Treatments (ART), the oocytes usually have low quality and reproductive capacity, which is correlated to oocyte interaction with cumulus cells. The low oocyte quality may be related to loss of genomic stability of oocytes, or even cumulus cells, and may lead to a reduction of female fertility. The telomere length and telomerase activity play a fundamental role in maintaining genomic stability, which is considered an important molecular marker of cell viability, whose alterations are related to apoptosis and/or senescence, maybe also an indicative of oocyte quality. The aim of the study was to evaluate the telomere length and telomerase activity in cumulus cells of women with PCOS. In this prospective case-control study, 110 volunteers were included, 43 women with PCOS and 67 controls from September 2015 to June 2017. Data were evaluated as age, body mass index (BMI), luteinizing hormone (LH), follicle stimulating hormone (FSH), sex hormone binding globulin (SHBG), prolactin, estradiol, insulin, total testosterone, androstenedione, index of free androgen (FAI), homocysteine and c-reactive protein. Telomere length in cumulus cells from immature (ICC) and mature (MCC) oocytes, leukocytes and immature oocytes in the germinal vesicle stage (VG) and in metaphase I (MI) were evaluated by quantitative real-time polymerase chain reaction (qPCR). Telomerase activity of ICC, MCC, VG and IM oocytes were evaluated by TRAPeze® XL Kit. Statistical analyses were determined by the MannWhitney test, multiple linear regression and Spearman\'s correlation. The results were that the variables BMI (p=.001), LH (p=.015), estradiol (p=.004), insulin (p=.002), testosterone (p<.0001), androstenedione (p=.001), FAI (p<.0001) and c-reactive protein (p=.003) was increased in PCOS group. FSH (p=.0002) was smaller in PCOS group. Prolactin and homocysteine were not different between the groups. The telomeres length in ICC did not differ between PCOS and control groups (1.60±0.56 vs 1.58±0.33; p=.649, respectively). The telomeres length in MCC did not differ between PCOS and control groups (1.61±0.47 vs 1.70±0.43; p=.378, respectively). However, in leukocytes reduced telomeres were observed in the PCOS (p=.025), respectively. The telomerase activity in ICC was higher in the PCOS group than in the control group (1.62±1.49 vs 0.30±0.42; p=.003, respectively) and the telomerase activity in MCC was higher in the PCOS group than in the control group (1.39±1.63 vs 0.55±0.84; p=.022, respectively). The telomere length and telomerase activity in VG and MI oocytes did not differ between groups. A positive correlation between telomerase activity and telomere length in the ICC was observed in control group (p=.051). PCOS also presented a positive correlation between telomerase activity and telomere length in MCC (p=.048). Telomere length of leukocytes, ICC and MCC were a positive correlated in both groups. The data suggest that PCOS does not appear to affect telomere length in ICC and MCC, only in leukocytes. On the other hand, a greater activity of telomerase in CCI and CCM may be necessary for the maintenance of telomere length at the reproductive level in women with PCOS.
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Avaliação do estresse oxidativo e expressão de genes envolvidos com síntese e oxidação de ácidos graxos em modelo animal de síndrome dos ovários policísticos tratado com metformina e submetida ao exercício físico / Evaluation of oxidative stress and expression of genes involved with fatty acid synthesis and oxidation in animal model of polycystic ovary syndrome treated with metformin and physical exercise

Thiago Hideki Gonçalves 04 December 2017 (has links)
Introdução: A síndrome dos ovários policísticos (SOP) é um distúrbio endócrino complexo com aspectos reprodutivos e metabólicos. Alterações do tecido adiposo participam da fisiopatologia da síndrome e anormalidades do metabolismo de ácidos graxos, bem como o estresse oxidativo, parecem ter papel importante nesse processo. Assim, tanto o exercício físico como a metformina são comumente recomendadas. O objetivo deste estudo foi avaliar a expressão de genes envolvidos com a síntese e oxidação dos ácidos graxos e com os níveis de estresse oxidativo no tecido adiposo de ratas com modelo experimental de SOP tratadas com metformina (Met), submetidas ou não a exercício físico em esteira (Ex). Métodos: Foram utilizadas 46 ratas, Wistar, que receberam no 2º dia de vida, uma única injeção subcutânea de propionato de testosterona (1,25 mg) para a indução de estado de estro permanente e óleo de sésamo (controles). Com 80 dias de idade iniciou-se o experimento e os animais foram divididos em 5 grupos: 1) Controle; 2) SOP ; 3) SOP+Met; 4) SOP+Ex; 5) SOP+Met+Ex.Os tratamentos tiveram duração de 6 semanas. Os animais foram sacrificados aos 120 dias de vida e foram retirados os depósitos das gorduras inguinal e mesentérica. Os depósitos de gordura inguinal e mesentérica foram utilizados para análise da expressão dos genes Acaca, Srebp1, Cpt1 e Cd36, por PCR quantitativo em tempo real, e dos níveis de estresse oxidativo pela dosagem das glutationas reduzida (GSH) e oxidada (GSSG). Adicionalmente, o tamanho dos adipócitos foi analisado por histomorfometria. Resultados: Na análise histomorfométrica dos adipócitos da gordura mesentérica, houve diminuição significativa no grupo SOP+Met+Ex em relação ao grupo SOP. O grupo SOP apresentou hipertrofia em relação ao grupo controle. A análise na gordura inguinal não apresentou nenhuma diferença entre os grupos.Não houve diferença estatística entre os grupos nas análises de expressão gênica das gorduras mesentérica e marrom. Não identificamos diferenças nas medidas de estresse oxidativo (razões GSH/GSSG ,GSH, GSH total, GSSG e razão GSH/GSSG) no tecido adiposo subcutâneo, mesentérico, perigonadal e marrom entre os depósitos de gordura dos animais em nenhum dos grupos avaliados / Introduction: Polycystic ovary syndrome (PCOS) is a complex endocrine disorder, affecting both reproductive and endocrine systems. Changes in adipose tissue are involved in the pathophysiology of the syndrome, and abnormalities of fatty acid metabolism, as well as oxidative stress, appear to play an important role in this process. Thus, both physical exercise and metformin are commonly recommended. The objective of this study was to evaluate the expression of genes involved in the synthesis and oxidation of fatty acids and oxidative stress levels in adipose tissue of in an experimental model of PCOS using Wistar rats. Methods: 46 rats, Wistar, treated with a single subcutaneous injection of testosterone propionate (1.25 mg) for the induction of permanent estrus status (PCOS model) or sesame oil (controls) on the 2nd day of life. Experimental phase of the study was started when animals completed 80 days of age. They were divided into 5 groups: 1) Control; 2) PCOS; 3) PCOS+ Met; 4) PCOS + Ex; 5) PCOS + Met + Ex. Intervention lasted 6 weeks. Animals were sacrificed at 120 days of age and the deposits of inguinal and mesenteric fat were removed. Inguinal and mesenteric fat deposits were used to analyze the expression of Acaca, Srebp1, Cpt1 and Cd36 genes by quantitative realtime PCR and oxidative stress levels by reduced (GSH) and oxidized glutathione (GSSG). In addition, adipocyte size was analyzed by histomorphometry. Results: In the histomorphometric analysis of mesenteric fat adipocytes, there was a significant decrease in the PCOS + Met + Ex group in relation to the PCOS group. PCOS group presented hypertrophy in relation to the control group. Inguinal fat analysis did not present any differences between the groups. There was no statistical difference between groups in analyzes of gene expression of mesenteric and brown fats. We did not identify differences in oxidative stress measurements (GSH / GSSG, GSH, total GSH, GSSG and GSH / GSSG ratio) in the subcutaneous, mesenteric, perigonadal and brown adipose tissue among the fat deposits of the animals in any of the evaluated groups
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Comprimento do telômero e atividade da telomerase em células do cumulus de mulheres com Síndrome dos Ovários Policísticos / Telomere length and telomerase activity in cumulus cells of women with Polycystic Ovarian Syndrome

Daiana Cristina Chielli Pedroso 30 May 2018 (has links)
A Síndrome dos Ovários Policísticos (SOP) representa um dos distúrbios endócrinos reprodutivos mais comuns em mulheres em idade reprodutiva. As mulheres com SOP normalmente respondem bem ao tratamento de reprodução assistida (TRAs), mas frequentemente apresentam oócitos de baixa qualidade e capacidade reprodutiva, a qual está correlacionado com a interação do oócito com as células do cumulus. A baixa qualidade oocitária pode estar relacionada a perda de estabilidade genômica do oócito, ou até mesmo das células do cumulus, o que pode levar a uma redução gradativa da fertilidade feminina. Os telômeros e a atividade da telomerase possuem um papel fundamental na manutenção da estabilidade genômica e são considerados importantes marcadores de viabilidade celular, podendo ser um indicativo da qualidade oocitária. O objetivo do estudo foi avaliar o comprimento do telômero e atividade da telomerase nas células do cumulus de mulheres com SOP. Neste estudo prospectivo caso-controle foram incluídas 110 voluntárias, sendo 43 mulheres com SOP e 67 controles no período de Setembro de 2015 a Junho de 2017. Foram avaliados os dados como idade, Índice de massa corporal (IMC), hormônio luteinizante (LH), hormônio folículo estimulante (FSH), globulina de ligação de hormônios sexuais (SHBG), prolactina, estradiol, insulina, testosterona total, androstenediona, índice de androgênio livre (FAI), homocisteína e proteína c-reativa. Foi avaliado o comprimento do telômero nas células do cumulus de oócitos imaturos (CCI), nas células do cumulus de oócitos maduros (CCM), nos oócitos imaturos no estágio de vesícula germinativa (VG), nos oócitos imaturos em metáfase I (MI) e nos leucócitos pelo método quantitativo da reação em cadeia da polimerase (qPCR). A atividade da telomerase das CCI, CCM, dos oócitos VG e MI foram avaliadas pelo Kit TRAPeze® XL. A análise estatística foi determinada pelo teste Mann-Whitney, regressão linear múltipla e correlação de Spearman. Os resultados foram que as variáveis IMC (p=0,001), LH (p=0,015), estradiol (p=0,004), insulina (p=0,002), testosterona (p<0,0001), androstenediona (p=0,001), FAI (p<0,0001) e proteína c-reativa (p=0,003) foram maiores no grupo SOP. FSH (p=0,0002) foi menor no grupo SOP. A prolactina e a homocisteína não diferiram entre os grupos. O comprimento do telômero nas CCI não diferiu entre os grupos SOP e controle (1,60±0,56 vs 1,58±0,33; p=0,649, respectivamente), bem como o comprimento do telômero nas CCM não diferiu entre os grupos SOP e controle (1,61±0,47 vs 1,70±0,43; p=0,378, respectivamente). Entretanto, nos leucócitos o comprimento do telômero foi menor no grupo SOP (p=0,025). A atividade da telomerase nas CCI foi maior no grupo SOP do que no grupo controle (1,62±1,49 vs 0,30±0,42; p=0,003, respectivamente) e a atividade da telomerase nas CCM também foi maior no grupo SOP do que no grupo controle (1,39±1,63 vs 0,55±0,84; p=0,022, respectivamente). O comprimento do telômero e a atividade da telomerase nos oócitos VG e MI não diferiu entre os grupos. Uma correlação positiva foi observada entre a atividade da telomerase e o comprimento do telômero nas CCI no grupo controle (p=0,051). O grupo SOP apresentou uma correlação positiva entre a atividade da telomerase e o comprimento do telômero, porém nas CCM (p=0,048). Foi observada uma correlação positiva do comprimento do telômero entre as células (leucócitos, CCI e CCM) em ambos os grupos. Os dados sugerem que a SOP parece não afetar o comprimento do telômero nas CCI e CCM, apenas nos leucócitos. Por outro lado, uma maior atividade da telomerase nas CCI e CCM pode ser necessária para a manutenção do comprimento telomérico à nível reprodutivo nas mulheres com SOP. / Polycystic Ovarian Syndrome (PCOS) represents one of the most common reproductive endocrine disorders in women of reproductive age. Women with PCOS, despite responding well to Assisted Reproduction Treatments (ART), the oocytes usually have low quality and reproductive capacity, which is correlated to oocyte interaction with cumulus cells. The low oocyte quality may be related to loss of genomic stability of oocytes, or even cumulus cells, and may lead to a reduction of female fertility. The telomere length and telomerase activity play a fundamental role in maintaining genomic stability, which is considered an important molecular marker of cell viability, whose alterations are related to apoptosis and/or senescence, maybe also an indicative of oocyte quality. The aim of the study was to evaluate the telomere length and telomerase activity in cumulus cells of women with PCOS. In this prospective case-control study, 110 volunteers were included, 43 women with PCOS and 67 controls from September 2015 to June 2017. Data were evaluated as age, body mass index (BMI), luteinizing hormone (LH), follicle stimulating hormone (FSH), sex hormone binding globulin (SHBG), prolactin, estradiol, insulin, total testosterone, androstenedione, index of free androgen (FAI), homocysteine and c-reactive protein. Telomere length in cumulus cells from immature (ICC) and mature (MCC) oocytes, leukocytes and immature oocytes in the germinal vesicle stage (VG) and in metaphase I (MI) were evaluated by quantitative real-time polymerase chain reaction (qPCR). Telomerase activity of ICC, MCC, VG and IM oocytes were evaluated by TRAPeze® XL Kit. Statistical analyses were determined by the MannWhitney test, multiple linear regression and Spearman\'s correlation. The results were that the variables BMI (p=.001), LH (p=.015), estradiol (p=.004), insulin (p=.002), testosterone (p<.0001), androstenedione (p=.001), FAI (p<.0001) and c-reactive protein (p=.003) was increased in PCOS group. FSH (p=.0002) was smaller in PCOS group. Prolactin and homocysteine were not different between the groups. The telomeres length in ICC did not differ between PCOS and control groups (1.60±0.56 vs 1.58±0.33; p=.649, respectively). The telomeres length in MCC did not differ between PCOS and control groups (1.61±0.47 vs 1.70±0.43; p=.378, respectively). However, in leukocytes reduced telomeres were observed in the PCOS (p=.025), respectively. The telomerase activity in ICC was higher in the PCOS group than in the control group (1.62±1.49 vs 0.30±0.42; p=.003, respectively) and the telomerase activity in MCC was higher in the PCOS group than in the control group (1.39±1.63 vs 0.55±0.84; p=.022, respectively). The telomere length and telomerase activity in VG and MI oocytes did not differ between groups. A positive correlation between telomerase activity and telomere length in the ICC was observed in control group (p=.051). PCOS also presented a positive correlation between telomerase activity and telomere length in MCC (p=.048). Telomere length of leukocytes, ICC and MCC were a positive correlated in both groups. The data suggest that PCOS does not appear to affect telomere length in ICC and MCC, only in leukocytes. On the other hand, a greater activity of telomerase in CCI and CCM may be necessary for the maintenance of telomere length at the reproductive level in women with PCOS.
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Nutrition Needs Assessment for Women of Childbearing Age with Polycystic Ovarian Syndrome

Coleman, Callie, Bignell, Whitney 01 May 2023 (has links) (PDF)
Polycystic Ovarian Syndrome (PCOS) is an endocrine disorder that affects women’s menstrual cycles, androgen (male hormones) levels, and cysts on the ovaries. This endocrine disorder has various symptoms, with insulin resistance as a hallmark symptom. Approximately 65-70% of women with PCOS have insulin resistance and hyperinsulinemia, whether or not they are overweight, obese, or lean (Marshall & Dunaif, 2012). Many women with PCOS struggle to lose weight because their excess weight is related to nutrition, lifestyle factors, and imbalanced hormones. Understanding PCOS as a metabolic disorder with nutritional implications led to investigating the potential benefit of having registered dietitian nutritionists (RDN) as part of the healthcare team of women with PCOS. We developed a survey based on the literature on PCOS, diet/nutrition interventions, and the role of RDNs in the healthcare team of PCOS women of childbearing age. Only childbearing-age women (18–44) diagnosed with PCOS were eligible to complete the survey. The survey was designed as a needs assessment to determine if women with PCOS are routinely referred to RDNs for support; whether or not such support is beneficial; and what gaps in knowledge or misconceptions about nutrition and PCOS exist among participants. Most importantly, it was designed to examine if women understand how nutrition relates to managing their PCOS symptoms and future disease risks. The data from this survey shows the need for RDNs on the healthcare team of women with PCOS and gives us an understanding of nutrition education interventions that could be developed for future studies. Understanding how RDNs play a role in symptom management could lead to a better quality of life for women with PCOS.
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Efeitos do treinamento físico aeróbio sobre a função sexual em mulheres com síndrome dos ovários policísticos: ensaio clínico controlado / Effects of aerobic exercise training on sexual function in women with polycystic ovary syndrome: a randomized clinical trial

Lopes, Irís Palma 05 February 2018 (has links)
Introdução: A Síndrome dos Ovários Policísticos (SOP) é uma doença que acomete de 5 a 10% das mulheres. A SOP tem sido relacionada em alguns estudos à disfunção sexual, ao aumento da ansiedade e depressão e à redução da qualidade de vida. Essas alterações podem estar relacionadas às alterações fenotípicas da SOP como o aumento do peso e das circunferências de quadril e cintura resultantes do hiperandrogenismo. A alteração no estilo de vida, principalmente envolvendo a prática de exercícios físicos, tem sido relevante na melhora das condições de saúde. Até o momento, há poucos estudos avaliando os efeitos do treinamento físico aeróbio sobre a função sexual em mulheres com SOP. Objetivo: Avaliar o efeito do treinamento físico aeróbico na função sexual de mulheres com a Síndrome dos Ovários Policísticos. Métodos: Trata-se de um ensaio clínico controlado com alocação aleatória e randomização estratificada pelo índice de massa corporal (IMC) em 3 grupos paralelos: grupo treinamento aeróbio contínuo (GAC), grupo treinamento aeróbio intermitente (GAI) e grupo controle sem treinamento (GC), sendo GAC com 23 voluntárias, o GAI com 22 voluntárias e o GC com 24 voluntárias. As avaliações ocorreram antes e após o período de 16 semanas de intervenção do treinamento físico aeróbio ou de observação no grupo controle. Foi realizada dosagem plasmática de testosterona, antes e após a intervenção. A função sexual, o risco de ansiedade e depressão e a qualidade de vida foram avaliados respectivamente, por meio dos questionários validados para o Português: Índice de Função Sexual Feminina (IFSF), Escala de Ansiedade e Depressão Hospitalar (HAD), e Questionário de Qualidade de Vida - SF-36. Resultados: Houve diferença significante na RCQ no grupo GAI (p = 0.047) e redução nos níveis de testosterona nos grupos GAC (p < 0.01) e GAI (p = 0.04). Na avaliação do IFSF no GC não houve qualquer alteração antes e após as 16 semanas. Contudo no GAC ocorreu aumento nos escores IFSF total (p = 0.048), satisfação (p = 0.049) e dor (p = 0.03). No GAI foram observados aumentos nos escores: IFSF total (p < 0.01), desejo (p < 0.01), excitação (p < 0.01), lubrificação (p < 0.01), orgasmo (p < 0.01) e satisfação (p = 0.02). Já na avaliação do questionário HAD observou- se diminuição tanto na ansiedade (p = 0.01) e (p < 0.01), quanto na depressão (p < 0.01) e (p = 0.02) nos grupos GAC e GAI respectivamente. Com relação ao SF-36 no GAC foram identificados aumento do escores: aspectos físicos (p = 0.01); estado geral de saúde (p = 0.02); vitalidade (p < 0.01); aspectos sociais (p < 0.01); aspectos emocionais (p = 0.03) e saúde mental (p < 0.01). No GAI houve elevação dos escores: capacidade funcional (p < 0.01); estado geral de saúde (p < 0.01); vitalidade (p < 0.01); aspectos sociais (p < 0.01); aspectos emocionais (p = 0.03) e saúde mental (p < 0.01). Conclusão: Ambos os protocolos de treinamento físico aeróbio foram eficazes na melhora da função sexual, ansiedade e depressão e qualidade de vida, observando maior efetividade no treinamento físico aeróbio intermitente. / Introduction: Polycystic Ovarian Syndrome (PCOS) is a disease that affects 5 to 10% of women. PCOS has been linked in some studies to sexual dysfunction, increased anxiety and depression, and reduced quality of life. These changes may be related to phenotypic changes in PCOS such as increased weight and hip and waist circumferences resulting from hyperandrogenism. The change in lifestyle, mainly involving the practice of physical exercises, has been relevant in improving health conditions. To date, there are few studies evaluating the effects of aerobic exercise training on sexual function in women with PCOS. Objective: To evaluate the effect of aerobic physical training on the sexual function of women with Polycystic Ovarian Syndrome. Methods: This is a controlled clinical trial with random allocation and randomization stratified by body mass index (BMI) in 3 parallel groups: continuous aerobic training group (GAC), intermittent aerobic training group (GAI) and control group without training (GC), GAC with 23 volunteers, GAI with 22 volunteers and GC with 24 volunteers. Evaluations occurred before and after the 16-week intervention period of aerobic or observational physical training in the control group. Testosterone plasma levels were measured before and after the intervention. Sexual function, risk of anxiety and depression, and quality of life were evaluated, respectively, using validated questionnaires for Portuguese: Female Sexual Function Index (IFSF), Hospital Anxiety and Depression Scale (HAD), and Questionnaire Quality of Life - SF-36. Results: There was a significant difference in WHR in the GAI group (p = 0.047) and reduction in testosterone levels in the groups GAC (p <0.01) and GAI (p = 0.04). In the evaluation of IFSF in the CG there was no change before and after 16 weeks. However, in GAC, there was an increase in total IFSF (p = 0.048), satisfaction (p = 0.049) and pain (p = 0.03). GAI showed increases in scores: total IFSF (p <0.01), desire (p <0.01), excitation (p <0.01), lubrication (p <0.01), orgasm (p <0.01) and satisfaction (p = 0.02). In the evaluation of the HAD questionnaire, both anxiety (p = 0.01) and (p <0.01) and depression (p <0.01) and (p = 0.02) in the GAC and GAI groups respectively. Regarding the SF-36 in the GAC was identified increase of the scores: physical aspects (p = 0.01); general health status (p = 0.02); vitality (p <0.01); social aspects (p <0.01); emotional aspects (p = 0.03) and mental health (p <0.01). In GAI there was elevation of the scores: functional capacity (p <0.01); general health status (p <0.01); vitality (p <0.01); social aspects (p <0.01); emotional aspects (p = 0.03) and mental health (p <0.01). Conclusion: Both aerobic physical training protocols were effective in improving sexual function, anxiety and depression and quality of life, observing greater effectiveness in intermittent aerobic physical training.
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Reproductive and Metabolic Consequences of the Polycystic Ovarian Syndrome

Hudecova, Miriam January 2010 (has links)
Polycystic ovary syndrome (PCOS) is a complex clinical condition characterized by hyperandrogenism and chronic oligo/anovulation. Infrequent ovulation and metabolic alterations in women with PCOS are associated with subfertility and probably increased miscarriage rates compared with normal fertile women. The overall risk of developing type 2 diabetes and impaired glucose tolerance (IGT) is three- to sevenfold higher in PCOS women, and the onset of glucose intolerance seems to occur at an earlier age than in healthy controls. Women with PCOS also have several risk factors for cardiovascular disease, although it is unclear whether they actually experience more cardiovascular events than other women. Very few studies assessing the long-term reproductive and metabolic consequences in older women with previously confirmed PCOS have been conducted. In this long-term follow-up of women with PCOS, 84 women with a diagnosis of PCOS between 1987 and 1995 and age at the follow-up &gt; 35 years and an age-matched population-based group of control women participated. Data on reproductive outcome, ovarian reserve, endothelial function, insulin sensitivity and beta-cell function were collected. According to our results most women with PCOS had given birth and the rate of spontaneous pregnancies was relatively high. The rate of miscarriages was not increased in PCOS patients and the ultrasound findings together with increased levels of anti-müllerian hormone suggested that their ovarian reserve is superior to women of similar age. PCOS women displayed signs of endothelial dysfunction, but this was largely due to the increased prevalence of independent risk factors for cardiovascular disease such as increased BMI, triglycerides and blood pressures. IGT and type 2 diabetes occurred more often in PCOS women. Free androgen levels and beta-cell function decreased over time whereas insulin sensitivity remained unchanged. Obesity at young age and progressive weight-gain rendered them more prone to be insulin resistant at the follow-up. Beta-cell function was increased in PCOS women in comparison with control subjects but declined over time. Independent of PCOS phenotype at the index assessment and persistence of PCOS symptoms at the follow-up investigation, premenopausal women with PCOS had lower insulin sensitivity and increased beta cell function in comparison with control subjects. Conclusion: The long-term reproductive outcomes of PCOS are similar compared to women with normal ovaries. Although symptoms and androgen levels are normalized over time, women with PCOS continue to display reduced insulin sensitivity and increased beta-cell function and they also have an increased risk of IGT and type 2 diabetes.

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