Apesar do estudo exaustivo do transporte mucociliar nasal, ainda há dados controversos sobre a influência direta dos hormônios sexuais femininos nesse mecanismo. O presente estudo teve por objetivos: 1. avaliar o transporte mucociliar nasal de sacarina nos sexos masculino e feminino, comparando-o nas fases folicular, periovulatória e lútea de ciclos ovarianos consecutivos e 2. identificar a expressão e a localização dos receptores para estrógeno e progesterona na mucosa nasal humana em conchas nasais inferiores de indivíduos dos sexos masculino e feminino na idade reprodutiva. O transporte mucociliar nasal de sacarina foi avaliado prospectivamente em 14 voluntários não fumantes, sem queixas nasais, com idades entre 15 e 30 anos (7 homens e 7 mulheres, com média de idade 23,5 anos). Nas mulheres, o transporte mucociliar nasal de sacarina foi medido nas fases folicular, periovulatória e lútea durante dois ciclos ovarianos consecutivos (em cinco casos) ou três ciclos consecutivos (em dois casos). Nos homens, o transporte mucociliar nasal de sacarina foi avaliado em medidas repetidas aleatoriamente três vezes (em dois casos) ou seis vezes (em cinco casos). A expressão dos receptores para estrógeno e progesterona na mucosa nasal humana foi avaliada por método imunohistoquímico, de modo retrospectivo, em conchas nasais inferiores conservadas em formaldeído e fixadas na parafina, arquivadas após a cirurgia de turbinectomia parcial da concha inferior a que foram submetidos 20 pacientes da mesma faixa etária dos voluntários (10 pacientes do sexo masculino e 10 do sexo feminino, com idades entre 15 e 33 anos, média de idade 22,1 anos). Para a imuno-histoquímica utilizaram-se anticorpos monoclonais de camundongo contra receptores para estrógeno (clone 6F11, Novocastra) e para progesterona (clone 16, Novocastra) separadamente. Não houve diferenças significativas no transporte mucociliar nasal de sacarina entre as fases folicular, periovulatória e lútea em ciclos ovarianos consecutivos, nem entre os sexos (p=0,08). Entretanto, considerando-se apenas o primeiro ciclo ovariano, o transporte mucociliar nasal de sacarina foi mais rápido durante a fase folicular (p=0,03). Os receptores para estrógeno e progesterona foram encontrados no citoplasma das glândulas serosas da lâmina própria exclusivamente no sexo masculino (6/10 homens e 3/10 homens respectivamente). Concluindo, o estrógeno e a progesterona não influenciaram as medidas repetidas do transporte mucociliar nasal de sacarina em indivíduos sem queixas nasais. Contudo, os receptores para estrógeno e progesterona foram encontrados nas glândulas seromucosas da lâmina própria no sexo masculino, indicando que ambos os hormônios poderiam agir diretamente sobre a produção do muco nasal. / Although nasal mucociliary clearance has been thoroughly studied, there is controversial evidence that it is directly influenced by female sex hormones. This study focused on: 1. evaluating saccharin nasal mucociliary transport in both sexes and during the follicular, periovulatory and luteal phases of consecutive ovarian cycles, and 2. identifying the expression and localisation of estrogen and progesterone receptors in human nasal mucosa from inferior turbinates of patients in reproductive age. Saccharin nasal mucociliary transport was prospectively evaluated in 14 nonsmoking healthy volunteers aged 15 to 30 years (7 males and 7 females, mean age 23.5 years) who had no nasal complaints. In females, saccharin nasal mucociliary transport was measured in the follicular, periovulatory and luteal phases during two consecutive ovarian cycles (five cases) or three consecutive cycles (two cases). In males, the saccharin nasal mucociliary transport was randomly repeated three times (two cases) or six times (five cases). Estrogen and progesterone receptor expression in human nasal mucosa was retrospectively assessed by immunohistochemistry in archival, formalin-fixed, paraffin-embedded inferior nasal conchae from 20 patients submitted to partial inferior turbinectomy whose ages were matched to their of the volunteers (10 male and 10 female patients aged 15 to 33 years, mean age 22.1 years). Immunohistochemistry used mouse monoclonal antibodies against estrogen receptor (6F11 clone, Novocastra) and progesterone receptor (16 clone, Novocastra) separately. There were no significant differences in saccharin nasal mucociliary transport among follicular, periovulatory and luteal phases in consecutive ovarian cycles, nor between sexes (p=.08). Even though, considering the first ovarian cycle only, saccharin nasal mucociliary transport was faster during the follicular phase (p=.03). Estrogen and progesterone receptors were found in the cytoplasm of serous glands of the lamina propria exclusively in males (6/10 males and 3/10 males respectively). In conclusion, estrogen and progesterone did not influence repeated measures of saccharin nasal mucociliary transport in males and females with no nasal complaints. Nevertheless, estrogen and progesterone receptors were found in seromucous glands of the lamina propria in males, indicating that both hormones might act directly over nasal mucus production

Apesar do estudo exaustivo do transporte mucociliar nasal, ainda há dados controversos sobre a influência direta dos hormônios sexuais femininos nesse mecanismo. O presente estudo teve por objetivos: 1. avaliar o transporte mucociliar nasal de sacarina nos sexos masculino e feminino, comparando-o nas fases folicular, periovulatória e lútea de ciclos ovarianos consecutivos e 2. identificar a expressão e a localização dos receptores para estrógeno e progesterona na mucosa nasal humana em conchas nasais inferiores de indivíduos dos sexos masculino e feminino na idade reprodutiva. O transporte mucociliar nasal de sacarina foi avaliado prospectivamente em 14 voluntários não fumantes, sem queixas nasais, com idades entre 15 e 30 anos (7 homens e 7 mulheres, com média de idade 23,5 anos). Nas mulheres, o transporte mucociliar nasal de sacarina foi medido nas fases folicular, periovulatória e lútea durante dois ciclos ovarianos consecutivos (em cinco casos) ou três ciclos consecutivos (em dois casos). Nos homens, o transporte mucociliar nasal de sacarina foi avaliado em medidas repetidas aleatoriamente três vezes (em dois casos) ou seis vezes (em cinco casos). A expressão dos receptores para estrógeno e progesterona na mucosa nasal humana foi avaliada por método imunohistoquímico, de modo retrospectivo, em conchas nasais inferiores conservadas em formaldeído e fixadas na parafina, arquivadas após a cirurgia de turbinectomia parcial da concha inferior a que foram submetidos 20 pacientes da mesma faixa etária dos voluntários (10 pacientes do sexo masculino e 10 do sexo feminino, com idades entre 15 e 33 anos, média de idade 22,1 anos). Para a imuno-histoquímica utilizaram-se anticorpos monoclonais de camundongo contra receptores para estrógeno (clone 6F11, Novocastra) e para progesterona (clone 16, Novocastra) separadamente. Não houve diferenças significativas no transporte mucociliar nasal de sacarina entre as fases folicular, periovulatória e lútea em ciclos ovarianos consecutivos, nem entre os sexos (p=0,08). Entretanto, considerando-se apenas o primeiro ciclo ovariano, o transporte mucociliar nasal de sacarina foi mais rápido durante a fase folicular (p=0,03). Os receptores para estrógeno e progesterona foram encontrados no citoplasma das glândulas serosas da lâmina própria exclusivamente no sexo masculino (6/10 homens e 3/10 homens respectivamente). Concluindo, o estrógeno e a progesterona não influenciaram as medidas repetidas do transporte mucociliar nasal de sacarina em indivíduos sem queixas nasais. Contudo, os receptores para estrógeno e progesterona foram encontrados nas glândulas seromucosas da lâmina própria no sexo masculino, indicando que ambos os hormônios poderiam agir diretamente sobre a produção do muco nasal. / Although nasal mucociliary clearance has been thoroughly studied, there is controversial evidence that it is directly influenced by female sex hormones. This study focused on: 1. evaluating saccharin nasal mucociliary transport in both sexes and during the follicular, periovulatory and luteal phases of consecutive ovarian cycles, and 2. identifying the expression and localisation of estrogen and progesterone receptors in human nasal mucosa from inferior turbinates of patients in reproductive age. Saccharin nasal mucociliary transport was prospectively evaluated in 14 nonsmoking healthy volunteers aged 15 to 30 years (7 males and 7 females, mean age 23.5 years) who had no nasal complaints. In females, saccharin nasal mucociliary transport was measured in the follicular, periovulatory and luteal phases during two consecutive ovarian cycles (five cases) or three consecutive cycles (two cases). In males, the saccharin nasal mucociliary transport was randomly repeated three times (two cases) or six times (five cases). Estrogen and progesterone receptor expression in human nasal mucosa was retrospectively assessed by immunohistochemistry in archival, formalin-fixed, paraffin-embedded inferior nasal conchae from 20 patients submitted to partial inferior turbinectomy whose ages were matched to their of the volunteers (10 male and 10 female patients aged 15 to 33 years, mean age 22.1 years). Immunohistochemistry used mouse monoclonal antibodies against estrogen receptor (6F11 clone, Novocastra) and progesterone receptor (16 clone, Novocastra) separately. There were no significant differences in saccharin nasal mucociliary transport among follicular, periovulatory and luteal phases in consecutive ovarian cycles, nor between sexes (p=.08). Even though, considering the first ovarian cycle only, saccharin nasal mucociliary transport was faster during the follicular phase (p=.03). Estrogen and progesterone receptors were found in the cytoplasm of serous glands of the lamina propria exclusively in males (6/10 males and 3/10 males respectively). In conclusion, estrogen and progesterone did not influence repeated measures of saccharin nasal mucociliary transport in males and females with no nasal complaints. Nevertheless, estrogen and progesterone receptors were found in seromucous glands of the lamina propria in males, indicating that both hormones might act directly over nasal mucus production

Made available in DSpace on 2015-07-22T20:50:05Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-12-31 / O carcinoma da mama é a neoplasia maligna mais freqüente entre as mulheres com grande impacto na mortalidade. Os estudos de quimioprevenção primária com tamoxifeno têm gerado boas expectativas e consideradas taxas de sucesso. Doses menores do tamoxifeno apresentam eficácia semelhante à dose padrão, com redução de custos e efeitos adversos. Estudou-se a imunorreação do anticorpo monoclonal Ki-67 (MIB-1) e a positividade dos receptores de estrogênio (1D5) e progesterona (PgR 636) no carcinoma de mama de mulheres tratadas com 10 mg de tamoxifeno por um período de 14 dias. Realizou-se estudo prospectivo, randomizado, com 38 mulheres, divididas em dois grupos: Grupo A: N = 20 (Grupo controle - sem medicação) e Grupo B: N = 18 (tamoxifeno 10 mg/dia por 14 dias). Todas as pacientes assinaram termo de consentimento previamente aprovado pelas duas instituições (Universidade Federal de São Paulo – Escola Paulista de Medicina e Hospital Materno Infantil de Goiânia-GO). A seguir foram submetidas à biópsia incisional e, após 14 dias, foi obtida nova amostra do tecido tumoral durante o tratamento cirúrgico definitivo. A positividade foi avaliada quantitativamente, contando-se no mínimo 1.000 células para cada lâmina. Para a análise estatística dos dados, foi utilizado o teste não paramétrico de Wilcoxon, fixandose α em 5%. Os dois grupos (A e B) foram considerados homogêneos em relação às variáveis de controle. No grupo A (controle) não houve redução estatisticamente significativa da positividade do Ki-67 (MIB-1) (p=0,627), e dos receptores de estrogênio (1D5) (p=0,296) e progesterona (PgR 636) (p=0,381). No grupo B (tamoxifeno 10 mg/dia) a porcentagem média de núcleos corados pelo Ki-67 (MIB-1) foi 24,7% antes e 10,4% após. Para o receptor de estrogênio (1D5), 59,5% antes e 25,9% após e para o receptor de progesterona (PgR 636), 59,3% e 29,6%, respectivamente. Houve redução significativa para os três marcadores (p<0,001). O tamoxifeno reduziu significativamente a positividade do anticorpo monoclonal Ki-67 (MIB-1), receptor de estrogênio (1D5) e receptor de progesterona (PgR 636) no epitélio mamário de pacientes com carcinoma, tratadas com tamoxifeno na dose de 10 mg por 14 dias. / Breast carcinoma is the most common malignancy among women, and it has a major impact on mortality. Studies of primary chemoprevention with tamoxifen have generated high expectations and considerable success rates. The efficacy of lower doses of tamoxifen is similar to that seen with the standard dose of the drug, and there is a reduction in medical care costs and adverse effects. The immune reaction to monoclonal antibody Ki-67 (MIB-1) and the expression of estrogen receptors (1D5) and progesterone receptors (PgR 636) in breast carcinoma were studied in patients treated with 10 mg of tamoxifen for a period of 14 days. A prospective randomized clinical trial was conducted with 38 patients divided into two groups: Group A: N = 20 (control group–without medication) and Group B: N = 18 (tamoxifen/10 mg/day for 14 days). All patients signed an informed consent term previously approved by both institutions (UNIFESP-EPM and Hospital Materno Infantil, Goiânia-GO). Patients underwent incisional biopsy before treatment and 14 days later a sample of tumor tissue was obtained during surgical treatment. Positivity was quantitatively assessed, counting at least 1.000 cells per slide. For statistical data analysis, a Wilcoxon non-parametric test was used, and α was set at 5%. Both groups (A and B) were considered homogeneous regarding control variables. In Group A (control), there was no statistically significant reduction in Ki-67 (MIB-1) (p=0.627), estrogen receptor (1D5) (p=0.296) and progesterone receptor positivity (PgR 636) (p=0.381). In Group B (tamoxifen 10 mg/day), the mean percentage of nuclei stained by Ki- 67 (MIB-1) was 24.7% before and 10.4% after tamoxifen treatment. Mean percentage of nuclei stained by estrogen receptor (1D5) was 59.5% before and 25.9% after tamoxifen treatment. Mean percentage of nuclei stained by progesterone receptor (PgR 636), was 59.3 before and 29.6% after tamoxifen treatment. A statistically significant reduction was found with the three markers (p<0.001). Tamoxifen significantly reduced monoclonal antibody Ki-67 (MIB-1), estrogen receptor (1D5) and progesterone receptor positivity (PgR 636) in the breast epithelium of patients with carcinoma, treated with a 10 mg dose of tamoxifen for 14 days. / TEDE / BV UNIFESP: Teses e dissertações

No setor de Ginecologia do Hospital das Clínicas da FMUSP, 67 mulheres com leiomiomas do útero e idade de 24 a 39 anos, nuligestas foram estudadas. 31 receberam goserelin a cada 28 dias por 6 meses (grupo I) e 36 não (grupo II). Do grupo I, 16 apresentaram redução volumétrica menor ou igual a 36% (subgrupo Ia) e 15, maior ou igual a 36% (subgrupo Ib). Após a miomectoma, os nódulos foram encaminhados para anatomopatológico. Um único leiomioma de cada mulher foi submetido ao estudo eimuno-histoquímico para avaliação das concentrações de receptores de estrógeno, progesterona, vasos sanguíneos, colágeno, AgNOR e da celularidade. Concluiu-se que o análogo do GnRH está relacionado à diminuição da concentração de receptores de estrógeno. Não apresentou influência uniforme para progesterona, vasos sanguíneos, colágeno e celularidade / From 1994 to 1998, a total of 67 women with leiomyomas in the uterus, aging from 24 to 39, nuliparous and avid for pregnancy were studied in the Department of Gynaecology and Obstetrics of Hospital das Clínicas of Medical School of the University of São Paulo. From these, 31 received Goserelin 3,6mg at each 28 days for six months (group I) and 36 did not received medication (group II or control group). From the pacients who received medication, 16 presented volumetric reduction equal to or less than 36% (subgroup Ia) and the other 15 reduction larger than 36% (subgroup Ib). All women were submitted to myomectomy and the nodes were sent to anatomicopathological study. Only one leiomyoma of each woman was submitted to histochemical and immunohistochemical study to measure the concentrations of receptors of estrogen and progesterone, blood vessels, collagen, AgNOR and cellularity. It was observed that the group that presented larger volumetric reduction after using this medication showed variations of the concentration of receptors of estrogen (p&#61500;0,001), progesterone (p=0.019), blood vessels (p=0.060), collagen (p=0.048), AgNOR (p=0.321) and number of cells (p=0.221), in comparison to the subgroup Ia and the group II (control group). As a result , it was observed that the GnRH analogue is related to the decrease of the concentration of receptors of estrogen, however it did not present uniform influence in the receptors of progesterone, blood vessels, collagen, and cellularity of this tumor

No setor de Ginecologia do Hospital das Clínicas da FMUSP, 67 mulheres com leiomiomas do útero e idade de 24 a 39 anos, nuligestas foram estudadas. 31 receberam goserelin a cada 28 dias por 6 meses (grupo I) e 36 não (grupo II). Do grupo I, 16 apresentaram redução volumétrica menor ou igual a 36% (subgrupo Ia) e 15, maior ou igual a 36% (subgrupo Ib). Após a miomectoma, os nódulos foram encaminhados para anatomopatológico. Um único leiomioma de cada mulher foi submetido ao estudo eimuno-histoquímico para avaliação das concentrações de receptores de estrógeno, progesterona, vasos sanguíneos, colágeno, AgNOR e da celularidade. Concluiu-se que o análogo do GnRH está relacionado à diminuição da concentração de receptores de estrógeno. Não apresentou influência uniforme para progesterona, vasos sanguíneos, colágeno e celularidade / From 1994 to 1998, a total of 67 women with leiomyomas in the uterus, aging from 24 to 39, nuliparous and avid for pregnancy were studied in the Department of Gynaecology and Obstetrics of Hospital das Clínicas of Medical School of the University of São Paulo. From these, 31 received Goserelin 3,6mg at each 28 days for six months (group I) and 36 did not received medication (group II or control group). From the pacients who received medication, 16 presented volumetric reduction equal to or less than 36% (subgroup Ia) and the other 15 reduction larger than 36% (subgroup Ib). All women were submitted to myomectomy and the nodes were sent to anatomicopathological study. Only one leiomyoma of each woman was submitted to histochemical and immunohistochemical study to measure the concentrations of receptors of estrogen and progesterone, blood vessels, collagen, AgNOR and cellularity. It was observed that the group that presented larger volumetric reduction after using this medication showed variations of the concentration of receptors of estrogen (p&#61500;0,001), progesterone (p=0.019), blood vessels (p=0.060), collagen (p=0.048), AgNOR (p=0.321) and number of cells (p=0.221), in comparison to the subgroup Ia and the group II (control group). As a result , it was observed that the GnRH analogue is related to the decrease of the concentration of receptors of estrogen, however it did not present uniform influence in the receptors of progesterone, blood vessels, collagen, and cellularity of this tumor

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Normal";mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-priority:99;mso-style-qformat:yes;mso-style-parent:"";mso-padding-alt:0cm 5.4pt 0cm 5.4pt;mso-para-margin-top:0cm;mso-para-margin-right:0cm;mso-para-margin-bottom:10.0pt;mso-para-margin-left:0cm;line-height:115%;mso-pagination:widow-orphan;font-size:11.0pt;font-family:"Calibri","sans-serif";mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:minor-bidi;}</style><![endif]--><b><span style="font-size:11.0pt;font-family:&quot;Times New Roman&quot;,&quot;serif&quot;;mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;color:black;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">Uvod: </span></b><span style="font-size:11.0pt;font-family:&quot;Times New Roman&quot;,&quot;serif&quot;;mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;color:black;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">Karcinom dojke je heterogena bolest koju karakteri&scaron;u različita morfologija, imunohisto-hemijski profil, klinički tok i terapijski odgovor. Ki-67 proliferativni indeks je jedan od markera sa prognostičkim i prediktivnim značajem, čije metodolo&scaron;ko određivanje i analiza jo&scaron; uvek nisu standardizovani. <b>Cilj: </b>Utvrditi graničnu (&ldquo;cut-off&rdquo;) prognostičku vrednost Ki-67 indeksa, kao i povezanost vrednosti Ki-67 u ranom luminalnom karcinomu dojke sa prognostičkim i prediktivnim parametrima karcinoma dojke, kao &scaron;to su životna dob bolesnica, veličina tumora, histolo&scaron;ki gradus (HG) i nivo tumorske ekspresije receptora estrogena (ER) i progesterona (PR). Takođe, cilj istraživanja je i utvrđivanje značajnosti razlike u vrednosti Ki-67 proliferativnog indeksa u odnosu na pojavu lokalnog recidiva, udaljenih metastaza i dužinu preživljavanja u toku petogodi&scaron;njeg perioda praćenja pacijentkinja. <b>Metode: </b>Retrospektivno je analizirano 120 patohistolo&scaron;kih izve&scaron;taja bolesnica kojima je u periodu od 01.01.2009. godine do 31.12.2011. godine na Institutu za onkologiju Vojvodine imunohistohemijskom analizom dokazan luminalni karcinom dojke (pozitivan ER i PR, negativan HER2), bez metastaza u aksilarnim limfnim čvorovima. <b>Rezultati: </b>Metodama deskriptivne statistike prosečna starost pacijentkinja je iznosila 57,42&plusmn;10,17 godina; prosečna veličina tumora 17,98&plusmn;6,97mm; recidiv je registrovan kod 8 (6,7%) pacijentkinja uz prosečan vremenski period do pojave recidiva od 49&plusmn;20,23 meseci. Vrednost &ldquo;cut off&rdquo; indeksa Ki-67 od prognostičkog značaja za vremenski period bez recidiva je iznosio 20,75%. Nije dokazana signifikantna veza između vrednosti Ki-67 i godina starosti pacijentkinja (p=0,401, odnosno p=0,293), kao i jačine ekspresije ER (p=1,00, p=0,957) i PR (p=0,273, p=0,189). Ustanovljena je signifikantna povezanost Ki-67 postoji sa veličinom (p=0,035, p=0,20) i HG tumora (p=0,041, p=0,20). Prosečan period praćenja bolesnica iznosio je 72,92&plusmn;8,38 meseci; nije registrovana pojava udaljenih metastaza, kao ni smrtni ishod. U odnosu na pojavu lokalnog recidiva, Kaplan-Majerovom analizom i Koksovom regresionom analizom proliferativni indeks Ki-67 se pokazao kao signifikantan prediktor za procenu ponovnog javljanja bolesti, lokalnog recidiva (Log rank (df = 1) = 2,73; p=0,045). Takođe je ustanovljeno da je statistički značajan prediktor za procenu recidiva bolesti i starosna dob bolesnica (Log rank (df = 1) = 6,885; p=0,009). Intenzitet pozitivnosti ER i PR, veličina tumora i histolo&scaron;ki gradus se nisu pokazali kao prediktori za pojavu recidiva luminalnih karcinoma dojke (p &gt; 0,05). <b>Zaključak: </b>Zbog heterogene prirode oboljenja, kori&scaron;ćenjem standardnih histopatolo&scaron;kih faktora i biomarkera te&scaron;ko je predvideti tok i ishod karcinoma dojke. Ki-67 je proliferativni marker, čija visoka vrednost korelira sa faktorima lo&scaron;e prognoze.</span></p> / <p><!--[if gte mso 9]><xml> <o:DocumentProperties> <o:Author>Tanja Lakic</o:Author> <o:Version>12.00</o:Version> </o:DocumentProperties></xml><![endif]--><!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:TrackMoves/> <w:TrackFormatting/> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:DoNotPromoteQF/> <w:LidThemeOther>EN-US</w:LidThemeOther> <w:LidThemeAsian>X-NONE</w:LidThemeAsian> <w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <w:DontGrowAutofit/> <w:SplitPgBreakAndParaMark/> <w:DontVertAlignCellWithSp/> <w:DontBreakConstrainedForcedTables/> 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Normal";mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-priority:99;mso-style-qformat:yes;mso-style-parent:"";mso-padding-alt:0cm 5.4pt 0cm 5.4pt;mso-para-margin-top:0cm;mso-para-margin-right:0cm;mso-para-margin-bottom:10.0pt;mso-para-margin-left:0cm;line-height:115%;mso-pagination:widow-orphan;font-size:11.0pt;font-family:"Calibri","sans-serif";mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:minor-bidi;}</style><![endif]--></p><p class="Default"><b><span style="font-size:11.0pt">Introduction: </span></b><span style="font-size:11.0pt">Breast cancer is a heterogeneous disease characterized by different morphology, immunohistochemical profile, clinical course and response to applied therapy. Ki-67 proliferative index is one of the prognostic and predictive factors, whose methodological determination and analysis are still unstandardized. <b>Objective: </b>Determination of cut-off value for Ki-67 index, its corelation in luminal breast carcinoma with patient&#39;s age, tumor size, histological grade (HG) and expression of estrogen (ER) and progesterone (PR). Also, the aim of the study was to determine the significance of the difference in the value of the Ki-67 proliferative index in relation to the occurrence of local relapse, distant metastases and survival rates during the five-year follow-up period of the patient. <b>Methods: </b>Retrospectively, we analysed 120 pathohistological reports of patients who were treated in the period from 01.01.2009 until 31.12.2011 at the Oncology Institute of Vojvodina, and to whom immunohistochemically was proven luminal breast cancer (positive ER and PR, negative HER2), without axillary lymph node metastases. </span><b><span style="font-size:11.0pt">Results: </span></b><span style="font-size:11.0pt">The average patient&rsquo;s age was 57.42&plusmn;10.17 years; average tumor size 17.98&plusmn;6.97mm; recurrence was registered in 8 (6.7%) patients with average recurrence time of 49&plusmn;20.23 months. &quot;Cut off&quot; Ki-67 value of prognostic significance for period without recurrence was 20.75%. Test didn&rsquo;t show significant relationship between Ki-67 and patient&rsquo;s age (p=0.401 and p=0.293), as well as the strength of expression ER (p=1.00, p=0.957) and PR (p=0.273, p=0.189). Significant correlation was present for Ki-67 with size (p=0.035, p=0.20) and tumor&rsquo;s HG (p=0.041, p=0.20). The average follow-up period for patients was 72.92&plusmn;8.38 months; there was no registered occurrence of distant metastases or fatal outcome. In relation to the occurrence of local relapse, Kaplan-Meier analysis and Cox regression analysis, the proliferative index Ki-67 proved to be a significant predictor for the assessment of recurrence of the disease, local relapse (Log rank (df = 1) = 2.73; p = 0.045). Also, it was founded that a statistically significant predictor for assessing the recurrence of the disease is the age of the patients (Log rank (df = 1) = 6.885; p = 0.009). The intensity of ER and PR expression, tumor size and histological grade have not been shown to be predictors of the recurrence of luminal breast carcinoma (p&gt; 0.05). </span><b><span style="font-size:11.0pt">Conclusion: </span></b><span style="font-size:11.0pt">Breast carcinoma is heterogeneous disease, so it is difficult to predict its course and outcome using standard histopathological factors and biomarkers. Ki-67 is proliferative marker whose high value correlates with factors of bad prognosis. </span></p>

Made available in DSpace on 2015-07-22T20:50:36Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-08-26. Added 1 bitstream(s) on 2015-08-11T03:25:58Z : No. of bitstreams: 1 Publico-11853.pdf: 1847638 bytes, checksum: 58d741297f37fd108b68cf301ea6653b (MD5) / Objetivo: Avaliar a presença do polimorfismo genético do receptor da progesterona (PROGINS) bem como as variáveis clínicas e epidemiológicas de risco para câncer de endométrio em mulheres com pólipos endometriais na pós-menopausa. Casuística e Métodos: Comparou-se em estudo caso-controle 154 mulheres menopausadas com pólipos endometriais benignos e 400 controles normais na pós-menopausa, quanto à presença do PROGINS, por meio da Reação em Cadeia da Polimerase (PCR). O grupo de pólipos endometriais foi comparado a 118 pacientes do grupo controle no tocante às variáveis clínicas e epidemiológicas de risco para câncer de endométrio. Estas variáveis foram também comparadas entre os pólipos benignos e malignos. Resultados: A comparação entre o grupo de pólipos benignos e o grupo controle mostrou significância estatística (p<0,05) para as varáveis: idade (média de 61,7 x 57,5 anos), raça não-branca (44,8% x 22,9%), anos da menopausa (média de 12,9 x 9,2 anos), paridade (média de 4,5 x 3,4 filhos), uso de tamoxifeno (5,2% x 0%), hipertensão arterial (54,5% x 29,7%) e antecedente de câncer de mama (10,4% x 0,8%) respectivamente. Após o ajuste para a idade, permaneceram com significância estatística, apenas a paridade (OR=1,13), a hipertensão arterial (OR=2,19) e o antecedente de câncer de mama (OR=14,44). Seis casos (3,75%), foram diagnosticados como pólipos malignos, nestes casos, sangramento na pós-menopausa e o tamanho grande do pólipo estiveram sempre presentes, enquando que nos pólipos benignos esta frequência foi de 23,4% para sangramento e 54,5% para pólipo grande. A hipertensão arterial foi bem mais frequente no grupo de pólipos malignos, 83,3% x 54,5% nos pólipos benignos. Não houve diferença estatisticamente significante entre os grupos quanto à presença do PROGINS, sendo no grupo de pólipos benignos a distribuição entre homozigoto selvagem, heterozigoto e homozigoto mutado de 79,9%, 19,5% e 0,6% respectivamente. No grupo controle (N=400) esta distribuição foi de 78,8%, 20,8% e 0,5% respectivamente. Conclusões: A presença do PROGINS não mostrou associação significativa com pólipos endometriais. As variáveis epidemiológicas significantemente associadas à presença de pólipos endometriais, após o ajuste para idade, foram a paridade, hipertensão arterial e o antecedente de câncer de mama (implícito o uso de tamoxifeno), além da idade mais avançada. Em nosso estudo, pólipos endometriais malignos estiveram sempre associados à presença de sangramento na pós-menopausa e tamanho grande do pólipo, sendo a hipertensão arterial achado bastante frequente. / Purpose: To evaluate the genetic polymorphism of the progesterone receptor (PROGINS), as well as clinical and epidemiological risk factors for endometrial cancer in postmenopausal women with endometrial polyps. Methods: A case control study was designed with 154 postmenopausal women with endometrial polyps, compared to a normal control group of 400 postmenopausal women. The genotyping of PROGINS polymorphism was determined by polymerase chain reaction. The group of polyps was compared to 118 normal postmenopausal controls regarding clinical and epidemiological variables. These variables were also compared between benign and malignant endometrial polyps. Results: The epidemiological variables among the group of endometrial polyps and normal control, showed statistical significance (p<0,05) for age: media of 61,7 and 57,5 years, ethnicity non-white 44,8% and 22,9%, time since menopause media of 12,9 and 9,2 years, parity media of 4,5 and 3,4 sons, tamoxifen use 5,2% and 0%, hypertension 54,5% and 29,7% and history of breast cancer 10,4% and 0,8% respectively. After age adjust, statistical significance, remained only for parity (OR=1,13), hypertension (OR=2,19) and history of breast cancer (OR=14,44). Postmenopausal bleeding and large polyps were present in all cases of malignancy. Hypertension was also very frequent in malignant polyps (83,3% and 54,5% respectively). The presence of PROGINS had no statistical significance between the group of polyps and the normal control (N=400). The presence of wild homozygosis genotype, heterozygosis and mutant homozygosis was 79,9%, 19,5% and 0,6% respectively for the polyp group, and 78,8%, 20,8% and 0,5% for the control group (p=0,208). Conclusions: There was no significant association between the presence of PROGINS and endometrial polyps. After age adjust, epidemiological variables significantly associated to endometrial polyps were elderly age, parity, hypertension, and history of breast cancer (implicit tamoxifen use). Malignant polyps in this study were always associated to postmenopausal bleeding, large polyps and frequently associated to hypertension. / TEDE / BV UNIFESP: Teses e dissertações