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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.
261

Evolução neonatal e aquisição passiva de anticorpos IgG séricos e IgA no colostro reativos com Streptococcus B, anti-LPS de Klebsiella pneumoniae e Pseudomonas aeruginosa em gêmeos / Neonatal outcome and passive acquisition of serum IgG antibodies and IgA in the colostrum reactive with Streptococcus agalactiae, anti-LPS of Klebsiella pneumoniae and Pseudomonas aeruginosa in twins

Monteiro, Renata de Araujo 16 January 2017 (has links)
Introdução: Gestações múltiplas apresentam alta morbidade relacionada a fatores como prematuridade, baixo peso ao nascer e sepse. Em gemelares, a aquisição de imunidade passiva por meio do cordão umbilical e do colostro ainda não é bem conhecida. O objetivo geral do estudo foi descrever a concentração de IgG total e específico anti-Streptococcus B, antilipopolissacarídeos de Klebsiella pneumoniae e antilipopolissacarídeos de Pseudomonas aeruginosa no cordão umbilical de recém-nascidos gemelares e a concentração de IgA secretora total e específica destes anticorpos no colostro. O objetivo específico foi analisar a associação entre infecção neonatal e concentração dos anticorpos no sangue de cordão umbilical e no colostro. Métodos: estudo prospectivo transversal de uma coorte de recémnascidos gemelares internados no Centro Neonatal do Instituto da Criança do Hospital das Clínicas da FMUSP no período de 20 meses. Foram excluídos: recém-nascidos com malformação; mães com infecção ou imunodeficiência. Variáveis analisadas: idade gestacional; peso de nascimento; classificação gestacional; concentrações de IgG total e específicos e IgA total e específicas anti-Streptococcus B, antilipopolissacarídeos de Klebsiella pneumoniae e antilipopolissacarídeos de Pseudomonas aeruginosa no sangue de cordão umbilical e no colostro; nutrição enteral; episódios de infecção; desfecho. As dosagens de IgG total foram realizadas por nefelometria e dos demais anticorpos através de ensaio imunoenzimático. Os testes t-Student pareado ou teste de Wilcoxon pareado, teste de Mann-Whitney e teste de Kruskal-Wallis, foram utilizados, considerando-se significante p< 0,005. Resultados: Foram incluídos 57 pares de gêmeos, compondo a casuística de 114 recém-nascidos. A idade gestacional foi 36±1,65 semanas (média±DP) e o peso de nascimento foi 2.304,8 ± 460g (média±DP). As concentrações de anticorpos encontradas foram (média±DP): IgG total 835,71 ± 190,73 mg/dL, IgG anti-Streptococcus B 295,1 ± 250,66 UA/mL, IgG antilipopolissacarídeos de Pseudomonas aeruginosa 280,04 ± 498,66 UA/mL e IgG antilipopolissacarídeos de Klebsiella pneumoniae 504,75 ± 933,93 UA/mL; IgA total 210,2 ± 285,3 g/L, IgA anti-Streptococcus B 6640 ± 9526,8 UA/mL, IgA antilipopolissacarídeos de Pseudomonas aeruginosa 3231,0 ± 2935,2 UA/mL, IgA antilipopolissacarídeos de Klebsiella pneumoniae 3070,1±2886,6 UA/mL. A concentração de IgG total foi menor nos recém-nascidos prematuros (p < 0,001). Em gemelares com idade gestacional < 34 semanas a concentração de IgG total (p=0,013) e IgG antilipopolissacarídeos de Pseudomonas aeruginosa (p=0,032) foi menor. A concentração de anticorpos IgG antilipopolissacarídeos de Klebsiella pneumoniae foi menor nos recém-nascidos pequenos para a idade gestacional (p=0,013). No colostro, houve detecção de IgA total, IgA anti-Streptococcus B, IgA antilipopolissacarídeos de Klebsiella pneumoniae e antilipopolissacarídeos de Pseudomonas aeruginosa em 98,1% das mães. A concentração de IgA antilipopolissacarídeos de Pseudomonas aeruginosa foi menor no colostro das mães de recém-nascidos prematuros (p=0,013). A concentração de IgA antilipopolissacarídeos de Klebsiella pneumoniae foi menor no colostro das mães com parto antes de 34 semanas (p=0,001). Houve infecção em cinco recém-nascidos, cuja concentração de IgG total foi menor (p<0,05). Os neonatos que receberam colostro apresentaram menor incidência de infecção (p < 0,001). Conclusões: Os anticorpos IgG total e específicos foram detectados no sangue do cordão umbilical em todos os gemelares, comprovando sua passagem transplacentária. Houve diminuição significativa na concentração de anticorpos IgG total nos gemelares prematuros e de IgG total e IgG antilipopolissacarídeos de Pseudomonas aeruginosa nos gemelares com idade gestacional inferior a 34 semanas. No colostro houve detecção de IgA total e específica em 98,1% das mães. A concentração de IgA anti-lipopolissacarídeos de Pseudomonas aeruginosa foi menor no colostro das mães de gemelares prematuros. Nas mães com parto antes de 34 semanas houve diminuição da concentração de IgA antilipopolissacarídeos de Klebsiella pneumoniae, sugerindo que a prematuridade possa ter influenciado a transferência de anticorpos maternos pelo colostro. A maior incidência de infecção no grupo de recém-nascidos, que não receberam colostro e naqueles que apresentavam concentração sérica de IgG total significativamente menor, reforça a importância da proteção anti-infecciosa conferida pela imunidade passiva transferida da mãe / Introduction: Multiple pregnancies have high morbidity related to factors such as prematurity, low birth weight and sepsis. In twins, acquisition of passive immunity through the umbilical cord and colostrum is not yet known. The overall aim of the study was to describe the concentration of total and specific IgG antibodies anti-Streptococcus B, anti-lipopolysaccharide of Klebsiella pneumoniae and anti-lipopolysaccharide of Pseudomonas aeruginosa in the umbilical cord of newborn twins and the concentration of total and specific secretory IgA antibodies in the colostrum. The specific aim was to analyze the association between neonatal infection and antibody concentration in the umbilical cord blood and colostrum. Methods: A prospective cross-sectional study of a cohort of newborn twins admitted to the Neonatal Center of Children\'s Institute, University of São Paulo during the period of 20 months. Patients with malformations and mothers with infection or immunodeficiency were excluded from our analysis. Variables analyzed: gestational age; birth weight; sex; gestational classification; antibody concentrations of total and specific IgG and IgA anti-Streptococcus B, anti-lipopolysaccharide of Klebsiella pneumoniae and antilipopolysaccharide of Pseudomonas aeruginosa in umbilical cord blood and colostrum; enteral nutrition; infection episodes; outcome. Total IgG measurements were performed using nephelometry and the specific antibodies were evaluated by enzyme immunoassay. We used paired Student t test or Wilcoxon test, Mann-Whitney test and Kruskal-Wallis test considering significant p < 0.005. Results: During the study period a total of 57 pairs of twins were included, making the sample of 114 newborns. Gestational age was 36 ± 1.65 weeks (mean±SD) and birth weight was 2304.8 ± 460g (mean±SD). We found the following antibody concentrations (mean±SD): total IgG 835.71 ± 190.73 mg/dL, anti-Streptococcus B IgG 250.66 ± 295.1 AU/mL, anti-lipopolysaccharide of Pseudomonas aeruginosa IgG 280.04 ± 498.66 AU/mL and anti-lipopolysaccharide of Klebsiella pneumoniae IgG 504.75±933.93 AU/mL; total IgA 210.2 ± 285.3 g/L, anti- Streptococcus B IgA 6640±9526.8 AU/mL, anti-lipopolysaccharide of Pseudomonas aeruginosa IgA 3231.0±2935.2 AU/mL, antilipopolysaccharide Klebsiella pneumoniae IgA 3070.1±2886.6 AU/mL. The concentration of total IgG was lower in preterm infants (p < 0.001). In twins with gestational age < 34 weeks both total IgG concentration (p = 0.013) and anti-lipopolysaccharide of Pseudomonas aeruginosa IgG concentration (p = 0.032) were lower. The concentration of anti-lipopolysaccharide of Klebsiella pneumoniae IgG was lower in small for gestational age newborns (p=0,013). There was detection of total IgA and specific antibodies in the colostrum of 98.1% mothers. The concentration of anti-lipopolysaccharide of Pseudomonas aeruginosa IgA was lower in the colostrum of premature\'s mothers (p = 0.013). The concentration of anti-lipopolysaccharide of Klebsiella pneumoniae IgA was lower in the colostrum of mothers with delivery before 34 weeks (p = 0.001). Five newborns were diagnosed with sepsis and in this group the concentration of total IgG was lower (p < 0.05). Neonates receiving colostrum had a lower incidence of infection (p < 0.001). Conclusion: This study showed detection of total and specific IgG antibodies in umbilical cord blood for all twin newborn, proving its transplacental passage. There was a significant decrease in the concentration of total IgG antibodies in premature twins and antilipopolysaccharide of Pseudomonas aeruginosa IgG in twins with gestational age less than 34 weeks. There was detection of total and specific IgA in the colostrum of 98.1% mothers. The concentration of anti-lipopolysaccharide of Pseudomonas aeruginosa IgA was lower in mothers of premature twins. Among the newborns with gestational age less than 34 weeks there was a decrease in the concentration of anti-lipopolysaccharide Klebsiella pneumoniae IgA, suggesting that prematurity may have influenced the transfer of maternal antibodies through colostrum. The highest incidence of infection in the newborn group who did not receive colostrum and in those who had significantly lower total IgG serum antibodies reinforces the importance of anti-infectious protection afforded by passive immunity transferred from the mother
262

Gestações gemelares com pesos discordantes: estudo da predição ultra-sonográfica e dos resultados neonatais / Twin growth discordance: sonographic prediction and factors related to perinatal outcome

Rita de Cassia Alam Machado 01 November 2006 (has links)
A gemelaridade apresenta algumas intercorrências específicas, como a discordância de peso entre fetos e recém-nascidos (RNs). O objetivo do presente estudo foi predizer a discordância de peso do exame ultra-sonográfico comparada à do parto e avaliar a morbidade e a mortalidade neonatais nas gestações gemelares discordantes quanto ao peso. Este foi um estudo retrospectivo, com levantamento dos casos do período de 1998 a 2004, no Setor de Gestações Múltiplas da Clínica Obstétrica do HCFMUSP. Na avaliação da predição ultra-sonográfica, foram inseridas 221 gestações gemelares e, na avaliação da morbidade e da mortalidade, 151 gestações com partos nessa instituição. A discordância de peso foi definida como >= 20%, sendo excluídos os casos de malformações fetais (n=43) e da Síndrome da transfusão feto-fetal (n=24). Para análise da adequação do peso ao nascimento, utilizou-se a curva de Alexander et al., 1998, para gêmeos. No estudo da predição, foram utilizados quatro intervalos de tempo em relação ao parto (0 a 7 dias - n = 96; 8 a 14 dias - n = 66; 15 a 21 dias - n = 58; 22 a 28 dias - n = 59 gestações), somando 279 avaliações. No grupo de 0 a 7 dias, a estimativa da sensibilidade foi de 93,6%, especificidade de 79,4%, valor preditivo positivo de 89,2%, valor preditivo negativo de 87,1% e acurácia de 88,6%. Nos demais grupos, a sensibilidade e a acurácia foram de 95,8% e 84,9%, 95,6% e 84,5%, 90,9% e 84,8%, respectivamente. Em relação à morbidade, 111 gestações eram concordantes (73,5%) e 40 discordantes quanto ao peso. No grupo discordante, 75% das gestações gemelares apresentaram pelo menos um recém-nascido com Restrição de Crescimento Fetal (RCF). Nesta análise, as gestações gemelares concordantes monocoriônicas obtiveram menor média de idade gestacional no parto (34,3 versus 36,2 semanas, p=0,004), menor peso médio (2067 versus 2334 gramas, p=0,0016) e maior tempo de internação (10,6 versus 7,3 dias, p=0,0023) que as gestações concordantes dicoriônicas. Nas gestações discordantes, não houve diferença significativa em relação à corionicidade. As gestações discordantes, com pelo menos um RN abaixo do percentil 10, apresentaram menor média de idade gestacional (35,2 versus 36,8 semanas, p=0,009) e maior tempo de internação (17,5 versus 8,2 dias, p=0,026). Não foi observada diferença significativa de morbidade e mortalidade entre RNs concordantes e discordantes, com pesos entre os percentis 10 e 90. Os fetos menores das gestações discordantes demonstraram maior freqüência de índice de Apgar inferior a 7 (27,5% versus 7,5%, p=0,01). A avaliação da mortalidade não demonstrou diferença significativa em relação aos grupos concordantes (3,7%) e discordantes (4,5%; p = 1,00). No presente estudo, conclui-se que os quatro grupos apresentaram adequada correlação entre a discordância de peso à ultra-sonografia e no nascimento, porém com melhor predição até sete dias antes do parto. A morbidade neonatal esteve relacionada à RCF do menor feto. A discordância de peso e a corionicidade não interferiram na mortalidade neonatal. / The aim of this study was to evaluate the ability of prenatal ultrasound scans to predict fetal growth discordance in twin pregnancies and perinatal morbidity/mortality associated with these cases. This was a retrospective study (1998-2004) involving twin pregnancies that were scanned and had their delivery at our Institution (HCFMUSP). Cases with fetal malformations (n=43) or twin to twin transfusion syndrome (n=24) were excluded. The study of ultrasound scans consisted of 221 twin pregnancies. The final morbidity/mortality study group consisted of 151 twin pregnancies. Birth weight was evaluated based on twin growth charts published by Alexander et al (1998) and weight discordance as a difference >= 20%. Small for gestacional age (SGA) was defined as birth weight below the 10th centile. The study of ultrasonographic prediction of interwin discordance was made using four different intervals between ultrasound examination and delivery (0 to 7 days, n = 96; 8 to 14 days, n = 66; 15 to 21 days, n = 58; 22 to 28 days, n = 59 pregnancies), with a total of 279 ultrasound examinations. In group 0 to 7 days, the sensitivity was 93,6%, specificity was 79,4%, positive predicted values was 89,2%, negative predicted values was 87,1% and accuracy was 88,6%. In the groups 8 to 14 days, 15 to 21 days and 22 to 28 days the sensitivity and accuracy were 95,8% and 84,9%, 95,6% and 84,5%, 90,9% and 84,8%, respectively. Birthweight discordance was observed in 40 sets of twins (26.5%) and 12 cases were monochorionic MC (30%). Twenty five cases (22.5%) in the non discordant group were MC. In the non discordant group, monochorionic pregnancies showed lower gestational age at delivery (34.3 versus 36.2 wks, p=0.004), lower mean birth weight (2067g versus 2334g, p=0.0016) and longer length of stay in hospital (10.6 versus 7.3 days, p=0.0023) compared to dichorionic twins. In the group with twin birthweight discordance, there were no significant differences between MC and DC pregnancies and 75% of the cases had at least one newborn with SGA. These cases were showed lower gestational age at delivery (35.2 versus 36.8wks, p=0.009) and longer length of stay in hospital (17.5 versus 8.2 days, p=0.026). In the discordant group, the smaller twin had a higher frequency of first minute Apgar score < 7 (27.5% versus 7.5%, p=0.01). Perinatal mortality rate was similar in both groups (discordant 4.5% and concordant 3.7%, p=1.0). There were no significant differences in morbidity and mortality between concordant and discordant twins when birth weight was between the 10 th and 90 th centile. In conclusion, there was a good correlation between fetal growth discordance predicted by prenatal scan and actual birth weight discordance. Neonatal morbidity was related to SGA. Excluding fetal malformation and TTTS cases, birth weight discordance in twin pregnancies is not a significantly associated with neonatal mortality.
263

Evolução neonatal e aquisição passiva de anticorpos IgG séricos e IgA no colostro reativos com Streptococcus B, anti-LPS de Klebsiella pneumoniae e Pseudomonas aeruginosa em gêmeos / Neonatal outcome and passive acquisition of serum IgG antibodies and IgA in the colostrum reactive with Streptococcus agalactiae, anti-LPS of Klebsiella pneumoniae and Pseudomonas aeruginosa in twins

Renata de Araujo Monteiro 16 January 2017 (has links)
Introdução: Gestações múltiplas apresentam alta morbidade relacionada a fatores como prematuridade, baixo peso ao nascer e sepse. Em gemelares, a aquisição de imunidade passiva por meio do cordão umbilical e do colostro ainda não é bem conhecida. O objetivo geral do estudo foi descrever a concentração de IgG total e específico anti-Streptococcus B, antilipopolissacarídeos de Klebsiella pneumoniae e antilipopolissacarídeos de Pseudomonas aeruginosa no cordão umbilical de recém-nascidos gemelares e a concentração de IgA secretora total e específica destes anticorpos no colostro. O objetivo específico foi analisar a associação entre infecção neonatal e concentração dos anticorpos no sangue de cordão umbilical e no colostro. Métodos: estudo prospectivo transversal de uma coorte de recémnascidos gemelares internados no Centro Neonatal do Instituto da Criança do Hospital das Clínicas da FMUSP no período de 20 meses. Foram excluídos: recém-nascidos com malformação; mães com infecção ou imunodeficiência. Variáveis analisadas: idade gestacional; peso de nascimento; classificação gestacional; concentrações de IgG total e específicos e IgA total e específicas anti-Streptococcus B, antilipopolissacarídeos de Klebsiella pneumoniae e antilipopolissacarídeos de Pseudomonas aeruginosa no sangue de cordão umbilical e no colostro; nutrição enteral; episódios de infecção; desfecho. As dosagens de IgG total foram realizadas por nefelometria e dos demais anticorpos através de ensaio imunoenzimático. Os testes t-Student pareado ou teste de Wilcoxon pareado, teste de Mann-Whitney e teste de Kruskal-Wallis, foram utilizados, considerando-se significante p< 0,005. Resultados: Foram incluídos 57 pares de gêmeos, compondo a casuística de 114 recém-nascidos. A idade gestacional foi 36±1,65 semanas (média±DP) e o peso de nascimento foi 2.304,8 ± 460g (média±DP). As concentrações de anticorpos encontradas foram (média±DP): IgG total 835,71 ± 190,73 mg/dL, IgG anti-Streptococcus B 295,1 ± 250,66 UA/mL, IgG antilipopolissacarídeos de Pseudomonas aeruginosa 280,04 ± 498,66 UA/mL e IgG antilipopolissacarídeos de Klebsiella pneumoniae 504,75 ± 933,93 UA/mL; IgA total 210,2 ± 285,3 g/L, IgA anti-Streptococcus B 6640 ± 9526,8 UA/mL, IgA antilipopolissacarídeos de Pseudomonas aeruginosa 3231,0 ± 2935,2 UA/mL, IgA antilipopolissacarídeos de Klebsiella pneumoniae 3070,1±2886,6 UA/mL. A concentração de IgG total foi menor nos recém-nascidos prematuros (p < 0,001). Em gemelares com idade gestacional < 34 semanas a concentração de IgG total (p=0,013) e IgG antilipopolissacarídeos de Pseudomonas aeruginosa (p=0,032) foi menor. A concentração de anticorpos IgG antilipopolissacarídeos de Klebsiella pneumoniae foi menor nos recém-nascidos pequenos para a idade gestacional (p=0,013). No colostro, houve detecção de IgA total, IgA anti-Streptococcus B, IgA antilipopolissacarídeos de Klebsiella pneumoniae e antilipopolissacarídeos de Pseudomonas aeruginosa em 98,1% das mães. A concentração de IgA antilipopolissacarídeos de Pseudomonas aeruginosa foi menor no colostro das mães de recém-nascidos prematuros (p=0,013). A concentração de IgA antilipopolissacarídeos de Klebsiella pneumoniae foi menor no colostro das mães com parto antes de 34 semanas (p=0,001). Houve infecção em cinco recém-nascidos, cuja concentração de IgG total foi menor (p<0,05). Os neonatos que receberam colostro apresentaram menor incidência de infecção (p < 0,001). Conclusões: Os anticorpos IgG total e específicos foram detectados no sangue do cordão umbilical em todos os gemelares, comprovando sua passagem transplacentária. Houve diminuição significativa na concentração de anticorpos IgG total nos gemelares prematuros e de IgG total e IgG antilipopolissacarídeos de Pseudomonas aeruginosa nos gemelares com idade gestacional inferior a 34 semanas. No colostro houve detecção de IgA total e específica em 98,1% das mães. A concentração de IgA anti-lipopolissacarídeos de Pseudomonas aeruginosa foi menor no colostro das mães de gemelares prematuros. Nas mães com parto antes de 34 semanas houve diminuição da concentração de IgA antilipopolissacarídeos de Klebsiella pneumoniae, sugerindo que a prematuridade possa ter influenciado a transferência de anticorpos maternos pelo colostro. A maior incidência de infecção no grupo de recém-nascidos, que não receberam colostro e naqueles que apresentavam concentração sérica de IgG total significativamente menor, reforça a importância da proteção anti-infecciosa conferida pela imunidade passiva transferida da mãe / Introduction: Multiple pregnancies have high morbidity related to factors such as prematurity, low birth weight and sepsis. In twins, acquisition of passive immunity through the umbilical cord and colostrum is not yet known. The overall aim of the study was to describe the concentration of total and specific IgG antibodies anti-Streptococcus B, anti-lipopolysaccharide of Klebsiella pneumoniae and anti-lipopolysaccharide of Pseudomonas aeruginosa in the umbilical cord of newborn twins and the concentration of total and specific secretory IgA antibodies in the colostrum. The specific aim was to analyze the association between neonatal infection and antibody concentration in the umbilical cord blood and colostrum. Methods: A prospective cross-sectional study of a cohort of newborn twins admitted to the Neonatal Center of Children\'s Institute, University of São Paulo during the period of 20 months. Patients with malformations and mothers with infection or immunodeficiency were excluded from our analysis. Variables analyzed: gestational age; birth weight; sex; gestational classification; antibody concentrations of total and specific IgG and IgA anti-Streptococcus B, anti-lipopolysaccharide of Klebsiella pneumoniae and antilipopolysaccharide of Pseudomonas aeruginosa in umbilical cord blood and colostrum; enteral nutrition; infection episodes; outcome. Total IgG measurements were performed using nephelometry and the specific antibodies were evaluated by enzyme immunoassay. We used paired Student t test or Wilcoxon test, Mann-Whitney test and Kruskal-Wallis test considering significant p < 0.005. Results: During the study period a total of 57 pairs of twins were included, making the sample of 114 newborns. Gestational age was 36 ± 1.65 weeks (mean±SD) and birth weight was 2304.8 ± 460g (mean±SD). We found the following antibody concentrations (mean±SD): total IgG 835.71 ± 190.73 mg/dL, anti-Streptococcus B IgG 250.66 ± 295.1 AU/mL, anti-lipopolysaccharide of Pseudomonas aeruginosa IgG 280.04 ± 498.66 AU/mL and anti-lipopolysaccharide of Klebsiella pneumoniae IgG 504.75±933.93 AU/mL; total IgA 210.2 ± 285.3 g/L, anti- Streptococcus B IgA 6640±9526.8 AU/mL, anti-lipopolysaccharide of Pseudomonas aeruginosa IgA 3231.0±2935.2 AU/mL, antilipopolysaccharide Klebsiella pneumoniae IgA 3070.1±2886.6 AU/mL. The concentration of total IgG was lower in preterm infants (p < 0.001). In twins with gestational age < 34 weeks both total IgG concentration (p = 0.013) and anti-lipopolysaccharide of Pseudomonas aeruginosa IgG concentration (p = 0.032) were lower. The concentration of anti-lipopolysaccharide of Klebsiella pneumoniae IgG was lower in small for gestational age newborns (p=0,013). There was detection of total IgA and specific antibodies in the colostrum of 98.1% mothers. The concentration of anti-lipopolysaccharide of Pseudomonas aeruginosa IgA was lower in the colostrum of premature\'s mothers (p = 0.013). The concentration of anti-lipopolysaccharide of Klebsiella pneumoniae IgA was lower in the colostrum of mothers with delivery before 34 weeks (p = 0.001). Five newborns were diagnosed with sepsis and in this group the concentration of total IgG was lower (p < 0.05). Neonates receiving colostrum had a lower incidence of infection (p < 0.001). Conclusion: This study showed detection of total and specific IgG antibodies in umbilical cord blood for all twin newborn, proving its transplacental passage. There was a significant decrease in the concentration of total IgG antibodies in premature twins and antilipopolysaccharide of Pseudomonas aeruginosa IgG in twins with gestational age less than 34 weeks. There was detection of total and specific IgA in the colostrum of 98.1% mothers. The concentration of anti-lipopolysaccharide of Pseudomonas aeruginosa IgA was lower in mothers of premature twins. Among the newborns with gestational age less than 34 weeks there was a decrease in the concentration of anti-lipopolysaccharide Klebsiella pneumoniae IgA, suggesting that prematurity may have influenced the transfer of maternal antibodies through colostrum. The highest incidence of infection in the newborn group who did not receive colostrum and in those who had significantly lower total IgG serum antibodies reinforces the importance of anti-infectious protection afforded by passive immunity transferred from the mother
264

Early adversity, brain development and emotion processing in monozygotic twins

Lévesque, Mélissa 11 1900 (has links)
No description available.
265

Cardiovascular disease and hypertension : Population-based studies on self-rated health and health-related quality of life in Sweden

Bardage, Carola January 2000 (has links)
<p>The aim with this thesis was to study cardiovascular disease and hypertension, use of drugs and health from an epidemiological perspective. Various methods - self-rated health (SRH), health related quality of life (HRQL) - the 36-item short form questionnaire (SF-36) - and health utility measurements - the rating scale (RS) and the time-trade off (TTO) methods - were employed.</p><p>Data from the Swedish Adoption/Twin Study of Aging (SATSA) in 1984, 1987, 1990, and 1993 as well as a general population survey conducted in Uppsala County in 1995 were used.</p><p>Persons who have cardiovascular disease, both with and without drug treatment, were found to have a lower SRH as compared to others in the population. Longitudinal analyses showed that SRH was relatively stable over time among persons with cardiovascular disease. Both having a low SRH and having cardiovascular disease were associated with a higher mortality rate.</p><p>Hypertensives were found to have a lower HRQL than do others in the general population as measured by the SF-36. The lowest scoring was found in the general health perception scale (GH), whereas role emotional (RE) and mental health (MH) were the scales least affected by hypertension.</p><p>Nearly 20 percent of the antihypertensive drug users reported side effects.The pattern of side effects was similar to that reported in clinical trials. Both hypertension itself and the drug treatment were found to have an impact on the patient's health-state utility as measured by the RS. Comparative analyses showed that health utilities and psychometric quality-of-life instruments were only moderately correlated among hypertensives. </p><p>The results also showed that inequalities in HRQL were present with respect to several sociodemographic factors. </p><p>In summary, this thesis revealed that persons with cardiovascular disease and/or with hypertension experience poorer health than others in the population. The poor health may be caused both by the disease and/or the drug treatment. The results in this thesis also suggested that special attention and care should be directed to persons with cardiovascular disease and/or hypertension reporting ill health. This especially is important given that low HRQL can be a riskfactor for subsequent cardiovascular events or complications which in turn might result in higher mortality rate.</p>
266

Cardiovascular disease and hypertension : Population-based studies on self-rated health and health-related quality of life in Sweden

Bardage, Carola January 2000 (has links)
The aim with this thesis was to study cardiovascular disease and hypertension, use of drugs and health from an epidemiological perspective. Various methods - self-rated health (SRH), health related quality of life (HRQL) - the 36-item short form questionnaire (SF-36) - and health utility measurements - the rating scale (RS) and the time-trade off (TTO) methods - were employed. Data from the Swedish Adoption/Twin Study of Aging (SATSA) in 1984, 1987, 1990, and 1993 as well as a general population survey conducted in Uppsala County in 1995 were used. Persons who have cardiovascular disease, both with and without drug treatment, were found to have a lower SRH as compared to others in the population. Longitudinal analyses showed that SRH was relatively stable over time among persons with cardiovascular disease. Both having a low SRH and having cardiovascular disease were associated with a higher mortality rate. Hypertensives were found to have a lower HRQL than do others in the general population as measured by the SF-36. The lowest scoring was found in the general health perception scale (GH), whereas role emotional (RE) and mental health (MH) were the scales least affected by hypertension. Nearly 20 percent of the antihypertensive drug users reported side effects.The pattern of side effects was similar to that reported in clinical trials. Both hypertension itself and the drug treatment were found to have an impact on the patient's health-state utility as measured by the RS. Comparative analyses showed that health utilities and psychometric quality-of-life instruments were only moderately correlated among hypertensives. The results also showed that inequalities in HRQL were present with respect to several sociodemographic factors. In summary, this thesis revealed that persons with cardiovascular disease and/or with hypertension experience poorer health than others in the population. The poor health may be caused both by the disease and/or the drug treatment. The results in this thesis also suggested that special attention and care should be directed to persons with cardiovascular disease and/or hypertension reporting ill health. This especially is important given that low HRQL can be a riskfactor for subsequent cardiovascular events or complications which in turn might result in higher mortality rate.
267

Signs of Acquiring Bimodal Bilingualism Differently : A Longitudinal Case Study of Mediating a Deaf and a Hearing Twin in a Deaf Family

Cramér-Wolrath, Emelie January 2013 (has links)
This dissertation based on a case study explores the acquisition and the guidance of Swedish Sign Language and spoken Swedish over a span of seven years. Interactions between a pair of fraternal twins, one deaf and one hearing, and their Deaf[1] family were video-observed within the home setting. The thesis consists of a frame which provides an overview of the relationship between four studies. These describe and analyze mainly storytime sessions over time. The first article addresses attentional expressions between the participants; the second article studies the mediation of the deaf twin’s first language acquisition; the third article analyses the hearing twins acquisition of parallel bimodal bilingualism; the fourth article concerns second language acquisition, sequential bimodal bilingualism following a cochlear implant (CI). In the frame, theoretical underpinnings such as mediation and language acquisition were compiled, within a sociocultural frame. This synthesis of results provides important information; in the 12- and 13-month sessions simultaneous-tactile-looking was noted in interchanges between the twins and their mother; mediation of bilingualism was scaffolded by the caregivers with the hearing twin by inserting single vocal words or signs into the language base used at that time, a finding that differs from other reported studies; a third finding is the simultaneousness in which the deaf child’s Swedish Sign Language skill worked as a cultural tool, to build a second and spoken language. The findings over time revealed actions that included all the family members. Irrespective of the number of modes and varied types of communication with more than one child, mediation included following-in the child’s initiation, intersubjective meaningfulness and encouragement. In accordance with previous research, these factors seem to promote the acquisition of languages. In conclusion, these findings should also prove useful in the more general educational field. [1] Deaf with a capital ‘D’ is commonly used for cultural affiliation whereas lower case ‘d’, as in deaf, refers to audiological status (Monaghan, Schmaling, Nakamura &amp; Turner, 2003). / <p>Disputationen tolkas till svensk teckenspråk, hörselslinga finns.</p><p>At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 2: Submitted. Paper 3: Accepted. Paper 4: Submitted.</p>
268

Um estudo de caso com uma criança cega e uma vidente (gêmeas idênticas): habilidades sociais das crianças, crenças e práticas educativas da mãe / A study of case with one blind and one sighted child (identicals twins: children s social skills, mother s beliefs and educative pratices.

Costa, Carolina Severino Lopes da 28 February 2005 (has links)
Made available in DSpace on 2016-06-02T19:46:32Z (GMT). No. of bitstreams: 1 592.pdf: 666034 bytes, checksum: a7eb721ac07da78d431e418a8eeadcfc (MD5) Previous issue date: 2005-02-28 / Financiadora de Estudos e Projetos / The repertoire of social skills of blind and sighted children can be different from each other, inasmuch as the absence of the sense of sight prevents the blind children from using the same resources as those commonly used by the sighted ones, for example the visual imitation in the process of learning social skills and behaviors. The area of Social Skills Training (SST) was the theoretical and practical reference for this study, whose general aim was to describe and characterize the social performances of two identical twins aged ten years old: Célia, who is blind; and Virna, who is sighted. In addition, the beliefs and educational practices of their mother, who is their main caregiver, were identified. The data were obtained by conducting an interview with the mother as well as by filming the children during free situations. A transcript was made of the mother s answers to the questions from the interview script, and then the content was analyzed by theme. According to a protocol for observing the free situations, the films were assessed so that the children s performances enabled to infer the categories of social skills. The results showed that the mother considers that Virna is more independent to perform certain activities, while Célia requires more care and attention, besides being more subject to restrictions. The results also showed that the sighted child presented a wider and more refined repertoire of social skills in relation to her sister. From the data, it is possible to conclude that blind and sighted children have distinct social skills repertories, and the existing differences can be related to the blind variable as well as to the differences in the way the caretaker stimulates the children. Therefore, it is considered important to plan programs aiming to maximize the social development of visually impaired children, including social skills training and advices for the caregivers. / O repertório de habilidades sociais de crianças cegas e videntes pode ser diferente, uma vez que a ausência do sentido da visão impede que as crianças cegas utilizem recursos comumente utilizados pelas crianças videntes, como, por exemplo, a imitação visual durante o processo de aprendizagem de habilidades e comportamentos sociais. A área do Treinamento de Habilidades Sociais (THS) foi a referência teórica e prática do presente estudo, cujo objetivo geral foi o de descrever e caracterizar o desempenho social de duas crianças, gêmeas idênticas, com dez anos de idade: Célia, que é cega; e Virna, que é vidente. Além disso, foram identificadas as crenças e práticas educativas da mãe, principal cuidadora dessas crianças. Os dados foram obtidos por meio da realização de uma entrevista com a mãe, bem como por meio de filmagens das crianças em situações livres. As respostas da mãe referentes às questões do roteiro de entrevista foram transcritas, procedendo-se, então, uma análise de conteúdo por tema. A filmagem foi avaliada de acordo com um protocolo de observação das situações livres, de modo que os desempenhos das crianças possibilitaram inferir as classes de habilidades sociais. Os resultados mostraram que a mãe considera que Virna é mais independente ao desempenhar determinadas atividades, enquanto que Célia requer maior número de cuidados, além estar sujeita a um número maior de restrições. Os resultados mostraram, ainda, que a criança vidente apresentou repertório de habilidades sociais mais amplo e refinado do que o de sua irmã. Com base nos dados, é possível concluir que crianças cegas e videntes possuem repertórios de habilidades sociais distintos, sendo que as diferenças existentes podem estar relacionadas tanto à variável cegueira quanto às diferenças na maneira como a cuidadora estimula as crianças. Dessa forma, considera-se indicado o planejamento de programas que visem maximizar o desenvolvimento social de crianças deficientes visuais, incluindo os de treinamento das habilidades sociais e de orientação para pais.
269

GRAVIDANZA GEMELLARE E COSTRUZIONE DELLA RELAZIONE MAMMA-GEMELLI / TWIN PREGNANCY AND THE BUILDING OF MOTHER-TWIN RELATIONSHIP

MASCHERONI, ELEONORA 09 March 2018 (has links)
L’esperienza di aspettare e di essere genitore di due gemelli è innegabilmente diversa rispetto alla gravidanza alla genitorialità nel caso di un singolo bambino. La nascita gemellare è associata a conseguenze mediche, sanitarie, socio-emotive, psicologiche e dello sviluppo. Lo scopo di questo lavoro è stato quello di aggiungere conoscenze rispetto agli aspetti unici legati alla gravidanza gemellare e alla genitorialità. Ho esaminato il modo in cui le future mamme vivono la loro gravidanza e come le madri sperimentano l’essere genitori di due gemelli e come queste interagiscono con i loro bambini nel periodo post-partum. Per studiare meglio l'esperienza di aspettare e di essere madre di due gemelli, i risultati sono stati confrontati con la letteratura esistente e sono stati utilizzati diversi progetti di ricerca. È stata valutata la validità e le proprietà psicometriche della versione italiana del Baby Care Questionnaire; è stato valutato se l'esperienza unica di un gemello in attesa potesse influenzare negativamente l'attaccamento prenatale; è stato esplorato l'impatto della nascita gemellare sull'interazione madre-figlio nel primo periodo post-partum. Questa tesi ha stabilito che le madri di gemelli hanno esigenze particolari e affrontano sfide uniche. Le madri di gemelli sembrano essere meno adattate dal punto di vista psicologico alla loro gravidanza in termini di basso livello di attaccamento prenatale. Anche la costruzione di una relazione stretta e positiva potrebbe essere più difficile nel caso dei gemelli. / The experience of expecting and parenting twins is undeniably different from that of a singleton pregnancy and parenthood. Twin births are associated with medical, health care, socio-emotional, psychological and developmental consequences. The aim of this work was to add knowledge concerning the unique aspects of expecting and parenting twins. I examined the way the mothers-to-be live their pregnancy as well as how mothers experience parenting twins and interact with their babies in the post-partum period. To better investigate the unique experience of expecting and parenting twins, results were compared with the existing literature and different research design were used. It was evaluated the validity and the psychometric properties of the Italian version of the Baby Care Questionnaire; it was investigated if the unique experience of expecting twin may adversely affect prenatal attachment; it was explored the impact of twin birth on mother-child interaction in the early post-partum period. This thesis established that mothers of twins have unique needs and face unique challenges. Mothers of twins seems to be less psychological adjusted to their pregnancy in terms of lower level of prenatal attachment. Also the building of a close and positive relationship could be more difficult in the case of twins.
270

Rodinná politika ve vztahu k rodinám s vícerčaty / Family policy in relation to families with multiples

Semorádová, Lenka January 2014 (has links)
This Master's thesis on 'Family policy towards multiple children' addresses the current issue of Czech family policy towards families with special needs using the example of family policy towards multiple children. The objective of the thesis is to identify the living conditions of families with multiple children in the Czech Republic and to find out how family policy and other related policies reflect the needs of such families, analyze state support for families and support structures involved in this area of family support, to identify possible defects and then propose possible changes in this area. This thesis works with theoretical concepts: the theory of poverty, the theory of social exclusion , the theory of the welfare state, the human capital theory and the concept of public interest. This thesis employs the following methods: semi-structured interviews with actors, analysis of secondary data or stakeholder's analysis, problem tree analysis and formulation of variants. The conclusion of the work is that, despite the existing measures in the field of family policy, the concept of family policy has not yet taken into account families with multiple children and the support structures examined in this thesis are not yet sufficient in the case of families with multiple children. This thesis...

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