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1.
J Matern Fetal Neonatal Med ; 35(25): 6036-6043, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33771094

RESUMO

OBJECTIVE: Preeclampsia (PrE) is a pregnancy-related disorder. PrE affects the health of the mother and/or the fetus binomial with short and/or long-term consequences. The role of oxidant/antioxidant molecules and aberrant maternal inflammation in PrE has been documented. However, the importance of antioxidant molecules such as thiols has been poorly documented. In this research, a possible link between serum thiols levels and the diagnosis/severity of late-onset PrE (L-PrE) was investigated. MATERIALS AND METHODS: We examined maternal serum native thiols, disulfide, total thiols levels, and their ratios in pregnant women with (n = 51) and without L-PrE (n = 50). The levels of these three markers were measured using spectrophotometric assays and compared. RESULTS: There were significant differences in terms of serum native and total thiols levels between patients with L-PrE and healthy pregnant women (p = .001, p = .008, respectively). Disulfide levels were not different in either group (p = 0.729). There was no difference between total thiols, native thiols, disulfide concentrations, and their ratios in patients with mild (23 patients) and severe (27 patients) preeclampsia in L-PrE (p ≥ .05). A significant discriminative role of native and total thiols for the presence of L-PrE, with cutoff values of 175.86 µmol/L and 296.73 µmol/L, respectively, were revealed in ROC curve analysis. CONCLUSIONS: Lower concentrations of total/native thiols were linked with the development of L-PrE. However, there is still a need for more clinically useful biomarkers/molecules and management strategies in PrE.


Assuntos
Dissulfetos , Pré-Eclâmpsia , Humanos , Feminino , Gravidez , Compostos de Sulfidrila , Pré-Eclâmpsia/diagnóstico , Antioxidantes , Homeostase , Biomarcadores , Estudos de Casos e Controles
2.
Gynecol Endocrinol ; 34(7): 612-615, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29258358

RESUMO

The objective of this study was to evaluate the long-term effects of endometrioma excision on ovarian reserve. This study evaluated the long-term effects of endometrioma excision on ovarian reserve. A total of 63 women were enrolled in this prospective case-control study; 21 women had histories of endometrioma surgery (study group), 21 women had diagnoses of endometrioma, and 21 healthy age-matched women served as controls. Participants were recruited from the Department of Obstetrics and Gynecology, Inonu University Faculty of Medicine, between January 2007 and January 2016. The mean follow-up duration after endometrioma surgery was 30.4 ± 18.0 months for the study group. The mean follicle-stimulating hormone, luteinizing hormone and estradiol levels were similar among groups, but the anti-Müllerian hormone (AMH) level was significantly lower in the surgery group than in the control group (p < .001). The mean AMH level was 42% lower in the endometrioma surgery group than in the endometrioma group and 30% lower in the endometrioma group than in the control group (p = .080 and p = .160, respectively). Endometrioma has a detrimental effect on ovarian reserve, and decreased ovarian reserve compared with that in healthy fertile subjects without endometrioma is evident shortly after endometrioma excision. However, the endometrioma excision procedure does not significantly decrease the ovarian reserve in the long term.


Assuntos
Endometriose/cirurgia , Procedimentos Cirúrgicos em Ginecologia , Doenças Ovarianas/cirurgia , Reserva Ovariana/fisiologia , Adolescente , Adulto , Estudos de Casos e Controles , Endometriose/reabilitação , Feminino , Seguimentos , Procedimentos Cirúrgicos em Ginecologia/efeitos adversos , Procedimentos Cirúrgicos em Ginecologia/reabilitação , Humanos , Laparoscopia/efeitos adversos , Laparoscopia/reabilitação , Doenças Ovarianas/reabilitação , Fatores de Tempo , Adulto Jovem
3.
J Turk Ger Gynecol Assoc ; 17(4): 201-208, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27990089

RESUMO

OBJECTIVE: To compare the prevalence of various metabolic and cardiovascular risk factors and insulin resistance between polycystic ovary syndrome (PCOS) patients with or without hyperandrogenism. MATERIAL AND METHODS: This is a retrospective cross-sectional study involving women with PCOS as diagnosed according to the Androgen Excess (AE) Society definition (n=504) and women with normoandrogenemic PCOS (n=183). Anthropometrics, lipid profile, glucose, insulin, oral glucose tolerance test (OGTT), and reproductive hormone levels were evaluated. RESULTS: Women with PCOS diagnosed according to the AE Society had a significantly higher prevalence of metabolic syndrome compared with the normoandrogenemic PCOS phenotype: odds ratio (OR) 2.95 [95% confidence interval (CI) 1.21-7.21]. There was no significant difference in the prevalence glucose intolerance test between the groups [OR: 2.15, 95% CI 0.71-6.56]. The prevalence of low high density lipoprotein (HDL)-cholesterol in the group under the AE-PCOS Society criteria was higher than that of the normoandrogenemic PCOS group [OR: 2.82, 95%CI 1.29-3.36]. CONCLUSION: The risks of metabolic syndrome and cardiovascular disease may vary among the phenotypes of PCOS based on the Rotterdam criteria. This new data may be of reference in informing women with PCOS, although further prospective studies are needed to validate this proposition.

4.
J Matern Fetal Neonatal Med ; 27(11): 1083-7, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24094304

RESUMO

OBJECTIVE: To evaluate whether serum folic receptor α levels are changed in women whose previous pregnancies were complicated with neural tube defects (NTDs). METHODS: This was a case-control study that included 41 women as the control group who had previously had at least one healthy pregnancy and 37 women as the study group who had a previous pregnancy complicated with NTDs. Blood samples were obtained from all of the participants six weeks after the termination of pregnancy or delivery of a baby. Serum folate receptor α concentrations were analyzed using a commercially available enzyme-linked immunosorbent assay (ELISA) kit. RESULTS: The mean concentrations of serum folate receptor α were significantly lower in the NTD cases compared to those in the control group (p = 0.02). There was no significant difference in mean serum folate titers between the NTD cases and the control group (p = 0.07). CONCLUSION: Low serum folic acid receptor α levels in the current study did not appear to be a regulatory marker of maternal folate homeostasis per se but rather a factor that contributed to the development of NTDs.


Assuntos
Receptor 1 de Folato/sangue , Defeitos do Tubo Neural/diagnóstico , Gravidez/sangue , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Recém-Nascido , Mães , Defeitos do Tubo Neural/sangue , Diagnóstico Pré-Natal/métodos , Sensibilidade e Especificidade , Adulto Jovem
5.
Arch Gynecol Obstet ; 288(6): 1417-22, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23801011

RESUMO

PURPOSE: To compare the serum and follicular fluid (FF) concentrations of stem cell factor (SCF) as well as the serum urocortin 1 (UCN1) concentration in gonadotropin-releasing hormone antagonist (GnRH-ant) and gonadotropin-releasing hormone agonist (GnRH-a) protocols for controlled ovarian hyperstimulation (COH) in IVF patients. METHODS: Follicular fluids and blood samples of 42 infertile women undergoing COH for IVF-embryo transfer with either GnRH agonist (n = 22) or GnRH antagonist (n = 20) protocols from 2010 to 2011 were collected during oocyte retrieval. SCF concentrations of serum and FF were assessed by sandwich enzyme immunoassay using ELISA Kit for SCF kid. Serum UCN1 concentration were measured using commercially available enzyme-linked immunosorbent assay. RESULTS: Concentrations of serum UCN1, serum and FF SCF were similar in the two groups. The serum SCF levels correlated strongly with the follicular SCF levels (r = 0.770, p < 0.001). The mean implantation rate, biochemical and clinical pregnancy rate and live birth rate per cycle were also similar in the groups. CONCLUSIONS: These observations suggest that there is no significant difference in follicular microenvironment in terms of SCF and UCN1 between agonist and antagonist protocols.


Assuntos
Hormônio Foliculoestimulante/farmacologia , Líquido Folicular/química , Hormônio Liberador de Gonadotropina/agonistas , Hormônio Liberador de Gonadotropina/antagonistas & inibidores , Recuperação de Oócitos , Ovário/metabolismo , Indução da Ovulação/métodos , Fator de Células-Tronco/sangue , Urocortinas/sangue , Adulto , Implantação do Embrião , Transferência Embrionária , Ensaio de Imunoadsorção Enzimática , Feminino , Fertilização in vitro/efeitos dos fármacos , Fertilização in vitro/métodos , Gonadotropinas , Antagonistas de Hormônios , Hormônios/farmacologia , Humanos , Infertilidade Feminina/sangue , Síndrome de Hiperestimulação Ovariana/terapia , Ovário/efeitos dos fármacos , Gravidez , Taxa de Gravidez , Pamoato de Triptorrelina/análogos & derivados
6.
J Obstet Gynaecol Res ; 39(7): 1236-41, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23803006

RESUMO

AIM: The aim of this study was to analyze whether urocortin-1 concentration in midtrimester amniotic fluid could serve as an indicative marker of preterm labor. MATERIAL AND METHODS: A retrospective cohort study was conducted. Urocortin-1 concentrations in midtrimester amniotic fluid were measured in 22 pregnant women with preterm deliveries and 45 women who delivered at term using enzyme-linked immunosorbent assay. RESULTS: The median amniotic fluid urocortin-1 concentration was significantly lower in the women with preterm birth (40.06 pg/mL; range, 13.77-67.58 pg/mL) than in the women who gave birth at term (49.56 pg/mL; range, 26.25-175.9 pg/mL; P = 0.022). The result of receiver-operator curve analysis indicates that an amniotic fluid urocortin-1 concentration ≤ 57.88 pg/mL had an area under the curve of 0.673 (95% confidence interval, 0.55-0.78; P = 0.01) with a sensitivity of 81.8%, specificity of 40.0%, positive predictive value of 40%, and a negative predictive value of 82% in identifying which of the patients subsequently delivered prematurely. CONCLUSIONS: These results suggest that low urocortin-1 concentration in midtrimester amniotic fluid could be used as an indicative marker of preterm birth.


Assuntos
Líquido Amniótico/metabolismo , Nascimento Prematuro/metabolismo , Urocortinas/metabolismo , Adulto , Amniocentese , Biomarcadores/metabolismo , Estudos de Coortes , Diagnóstico Precoce , Feminino , Humanos , Gravidez , Segundo Trimestre da Gravidez , Nascimento Prematuro/diagnóstico , Nascimento Prematuro/epidemiologia , Estudos Retrospectivos , Risco , Sensibilidade e Especificidade , Turquia/epidemiologia
7.
J Matern Fetal Neonatal Med ; 26(9): 936-40, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23327462

RESUMO

OBJECTIVE: To compare the maternal and fetal characteristics and perinatal outcome in mild and severe preeclampsia cases with and without uterine artery Doppler abnormalities. METHODS: Two hundred and fifty-nine mild and severe preeclampsia cases were evaluated retrospectively. Doppler measurements were done in the section where uterine artery raised from the hypogastric artery. Pulsatility index above the 95th percentile of the corresponding gestational age was accepted as abnormal. RESULTS: In mild and severe preeclampsia cases with abnormal Doppler (AD), the rate of intrauterine growth restriction, preterm birth and low birth weight was higher than, but the neonatal intensive care unit stay was similar to the cases with normal Doppler. Base excess was higher in the AD group, in mild and severe preeclampsia. The rate of low Apgar score at 5 min and perinatal mortality was higher in the AD group, in the mild preeclampsia. The strongest independent predictor of the perinatal morbidity and mortality was the presence of prematurity and of the prematurity was the presence of abnormal uterine artery Doppler. CONCLUSIONS: Maternal and perinatal morbidity and perinatal mortality increase in mild to severe preeclampsia cases with abnormal uterine artery Doppler. The abnormal uterine artery Doppler increases the morbidity and mortality by increasing the risk of prematurity.


Assuntos
Pré-Eclâmpsia/diagnóstico por imagem , Pré-Eclâmpsia/epidemiologia , Resultado da Gravidez/epidemiologia , Artéria Uterina/diagnóstico por imagem , Doenças Uterinas/diagnóstico por imagem , Doenças Uterinas/epidemiologia , Adulto , Velocidade do Fluxo Sanguíneo , Feminino , Doenças Fetais/epidemiologia , Doenças Fetais/etiologia , Feto/irrigação sanguínea , Humanos , Recém-Nascido , Circulação Placentária/fisiologia , Gravidez , Índice de Gravidade de Doença , Ultrassonografia Doppler em Cores , Ultrassonografia Pré-Natal , Artéria Uterina/anormalidades , Doenças Uterinas/complicações , Adulto Jovem
8.
J Perinat Med ; 41(4): 375-80, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23314506

RESUMO

AIM: To evaluate maternal and cord blood serum adropin concentrations in pregnant women with gestational diabetes mellitus (GDM). STUDY DESIGN: Twenty pregnant women with GDM and 20 gestational age-matched healthy pregnant women participated in the study. Maternal serum and cord blood adropin levels were assessed using an enzyme immunosorbent assay, at the time of birth. The relation of maternal serum and cord blood adropin levels with metabolic parameters were also assessed. RESULTS: The mean maternal and cord serum adropin in the GDM group were significantly lower than those of the control women (P=0.01 and P<0.001, respectively). Maternal serum adropin levels did not correlate with either fetal serum adropin levels or maternal metabolic values. CONCLUSION: The data suggest that low adropin levels may contribute to the underlying pathogenesis of GDM.


Assuntos
Proteínas Sanguíneas/metabolismo , Diabetes Gestacional/sangue , Sangue Fetal/metabolismo , Adulto , Biomarcadores/sangue , Peso ao Nascer , Glicemia/metabolismo , Estudos de Casos e Controles , Diabetes Gestacional/dietoterapia , Diabetes Gestacional/tratamento farmacológico , Dieta para Diabéticos , Feminino , Humanos , Recém-Nascido , Insulina/sangue , Insulina/uso terapêutico , Resistência à Insulina , Peptídeos e Proteínas de Sinalização Intercelular , Masculino , Peptídeos , Gravidez
9.
J Turk Ger Gynecol Assoc ; 14(3): 125-9, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24592090

RESUMO

OBJECTIVE: To evaluate percentage changes in serum beta-human chorionic gonadotropin (ß-hCG) values between days 0-1, 0-4 and 0-7 as an indicator of methotrexate therapy success in extra-uterine pregnancies. MATERIAL AND METHODS: Women with ectopic pregnancy treated with single-dose methotrexate therapy between January 2011 and August 2012 were assessed. Recorded data were reviewed electronically from patient files. All women (n=93) with an ectopic pregnancy treated medically with intramuscular methotrexate (50 mg/m(2)) were included. The percentage changes in serum ß-hCG levels from day 0 to 1, day 0 to 4 and day 0 to 7 were calculated for each case. RESULTS: The median ß-hCG values decreased between days 0 and 4 by 55.8%, and 89.6% of these cases were treatment successes. The median initial serum ß-hCG values were lower in women with successful treatment, but this was not statistically significant (p=0.11). CONCLUSION: A decline in serum ß-hCG values between days 0 and 4 appears to be the best predictor. It would be beneficial to determine whether a woman with an ectopic pregnancy treated with single-dose methotrexate administration will be treated successfully.

10.
Gynecol Endocrinol ; 29(1): 83-6, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22827297

RESUMO

In the current study, we aimed to investigate whether serum salusin α and ß levels are different in PCOS subjects. Fifty women with PCOS and 50 healthy, age- and body mass index matched controls were included to the prospective cross-sectional study. All subjects underwent venous blood drawing on the early follicular phase after an overnight fasting. Serum salusin α and ß levels were measured with EIA, and ELISA respectively. The relationships between serum salusin levels and anthropometric and metabolic parameters were also assessed. Plasma salusin α and ß levels were higher in women with PCOS compared to control group. Serum salusin α level correlated positively with salusin ß and fasting serum insulin levels. The serum salusin ß levels were correlated positively with HOMA-IR, TG, LDL-C, LH, FSH, and total testosterone levels. Our results indicate that salusins, newly identified regulators of hemodynamics and mitogenesis, are increased within the serum of women with PCOS.


Assuntos
Divisão Celular/fisiologia , Hemodinâmica/fisiologia , Peptídeos e Proteínas de Sinalização Intercelular/fisiologia , Síndrome do Ovário Policístico , Adulto , Estudos Transversais , Ensaio de Imunoadsorção Enzimática , Feminino , Hormônio Foliculoestimulante Humano/sangue , Humanos , Resistência à Insulina/fisiologia , Peptídeos e Proteínas de Sinalização Intercelular/sangue , Lipídeos/sangue , Hormônio Luteinizante/sangue , Síndrome do Ovário Policístico/sangue , Síndrome do Ovário Policístico/epidemiologia , Síndrome do Ovário Policístico/fisiopatologia , Estudos Prospectivos , Fatores de Risco , Testosterona/sangue , Adulto Jovem
11.
J Obstet Gynaecol Res ; 39(1): 139-45, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22889404

RESUMO

AIM: Evidence suggests that orexin regulates food consumption, glucose metabolism and insulin secretion. Orexin may have a role in the pathogenesis of type II diabetes mellitus, however its role in gestational diabetes mellitus is not known. We aimed to assess maternal serum and cord blood orexin-A (OXA) concentrations in pregnant women with gestational diabetes mellitus (GDM). MATERIAL AND METHODS: Thirty-five pregnant women with GDM and 35 gestational-age-matched healthy pregnant subjects participated in the study. Maternal serum and cord blood OXA levels were measured with enzyme immunoassay at the time of birth. The correlations between maternal serum and cord blood OXA levels, anthropometric and metabolic parameters were also assessed. RESULTS: The mean maternal and cord serum OXA (1.16±0.37 and 1.35±0.20ng/mL, respectively) in the GDM group were significantly different from those of the controls (1.58±0.59 and 1.25±0.21ng/mL, respectively). The mean maternal fasting-glucose-to-OXA ratio was significantly higher in the GDM group. In the GDM group, the mean maternal serum OXA levels were similar in the insulin (n=24) and diet (n=11) treated cases, respectively (1.13±0.36ng/mL and 1.21±0.41ng/mL). Maternal serum OXA levels positively correlated with fetal serum OXA and maternal glucose levels. OXA concentrations in maternal serum were negatively correlated with the fasting glucose, fasting insulin and homeostasis model assessment insulin resistance index. CONCLUSIONS: Maternal serum OXA levels decrease, and fetal serum OXA levels increase in women with GDM.


Assuntos
Diabetes Gestacional/sangue , Sangue Fetal/metabolismo , Peptídeos e Proteínas de Sinalização Intracelular/sangue , Neuropeptídeos/sangue , Adulto , Feminino , Feto , Teste de Tolerância a Glucose , Humanos , Insulina/sangue , Orexinas , Gravidez
12.
Reprod Sci ; 20(7): 762-70, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23221171

RESUMO

We aimed to investigate whether the surgical removal of endometrioma alters the nuclear factor-kappa B1 (NF-kB1; p50/105) and NF-kB p65 (Rel A) expression in the eutopic endometrium of infertile women with endometrioma before and after laparoscopic removal of the ovarian endometrioma during the mid-secretory phase. Infertile women with endometrioma (n = 15) were enrolled. Infertile patients with nonendometriotic ovarian cyst (n = 10) and healthy fertile women (n = 10) were recruited as controls. Endometrial samples were obtained before and 3 months after the laparoscopic cystectomy. The NF-kB1 (p50/105) levels were analyzed by enzyme-linked immunosorbent assay (ELISA) in the endometrium of all groups before and after laparoscopic ovarian cystectomy during implantation window. Expression of NF-kB1 (p50/105) in eutopic endometrium was significantly higher in infertile women with endometrioma compared to nonendometriotic cyst and fertile controls (P < .05). Laparoscopic cystectomy resulted in a significant decrease in NF-kB1 expression in women with endometrioma. The NF-kB p65 (Rel A) immunoreactivity of eutopic endometrium decreased significantly subsequent to the surgical removal of the endometrioma. In conclusion, increased endometrial NF-kB expression may contribute to endometriosis-associated infertility.


Assuntos
Implantação do Embrião/fisiologia , Endometriose/metabolismo , Endometriose/cirurgia , Endométrio/metabolismo , Subunidade p50 de NF-kappa B/antagonistas & inibidores , Fator de Transcrição RelA/antagonistas & inibidores , Adulto , Endometriose/patologia , Endométrio/patologia , Feminino , Regulação da Expressão Gênica , Humanos , Infertilidade Feminina/diagnóstico , Infertilidade Feminina/metabolismo , Infertilidade Feminina/cirurgia , Subunidade p50 de NF-kappa B/biossíntese , Fatores de Tempo , Fator de Transcrição RelA/biossíntese
13.
Eur J Obstet Gynecol Reprod Biol ; 167(1): 29-33, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23178004

RESUMO

OBJECTIVES: To evaluate maternal and cord serum concentrations of salusin-α and salusin-ß in women with gestational diabetes mellitus (GDM) and with small-for-gestational age (SGA) fetuses. STUDY DESIGN: Pregnant women with GDM (n=25), women with SGA (n=20) and maternal age-matched normal healthy pregnant subjects (n=25) participated in the study. Maternal serum and cord blood salusin-α and salusin-ß levels at the time of birth were measured using ELISA, and their relation with metabolic parameters was also assessed. RESULTS: Mean concentrations of maternal and fetal serum salusin-α in the GDM and SGA groups were significantly lower than those of the controls (P<0.001, P<0.001, P<0.001 and P<0.001, respectively). Mean concentrations of maternal and cord blood salusin-ß also decreased in both the GDM and the SGA groups in comparison to the control group (P<0.001, P<0.001, P<0.001 and P<0.001, respectively). The concentrations of maternal serum salusin-α and salusin-ß were strongly positively correlated with the concentrations of cord blood salusin-α and salusin-ß (R=0.92, P<0.001 and R=0.94, P<0.001, respectively). CONCLUSIONS: The low levels of maternal serum salusin-α and salusin-ß may have negative impact on metabolic disorders and vascular dysfunction.


Assuntos
Diabetes Gestacional/sangue , Recém-Nascido Pequeno para a Idade Gestacional/sangue , Peptídeos e Proteínas de Sinalização Intercelular/sangue , Adulto , Peso ao Nascer , Glicemia/metabolismo , Estudos de Casos e Controles , Cesárea , Feminino , Sangue Fetal , Idade Gestacional , Homeostase , Humanos , Recém-Nascido , Resistência à Insulina , Gravidez , Estatísticas não Paramétricas , Adulto Jovem
14.
Reprod Biol Endocrinol ; 10: 112, 2012 Dec 17.
Artigo em Inglês | MEDLINE | ID: mdl-23245287

RESUMO

It is a long held doctrine in reproductive biology that women are born with a finite number of oocytes and there is no oogenesis during the postnatal period. However, recent evidence challenges this by showing the presence of germ line stem cells in the human ovarian surface epithelium (OSE), which can serve as a source of germ cells, and differentiate into oocyte like structures. Postnatal renewal of oocytes may have enormous therapeutic potential especially in women facing the risk of premature ovarian failure idiopathically or iatrogenically after exposure to gonadotoxic chemotherapy and radiation for cancer therapy.This article reviews current knowledge on germ line stem cells in human OSE.


Assuntos
Células Epiteliais/citologia , Células Germinativas/citologia , Oócitos/citologia , Ovário/citologia , Animais , Biomarcadores/metabolismo , Células Epiteliais/metabolismo , Epitélio/metabolismo , Feminino , Células Germinativas/metabolismo , Humanos , Oócitos/metabolismo , Ovário/metabolismo , Células-Tronco/citologia , Células-Tronco/metabolismo
15.
J Assist Reprod Genet ; 29(11): 1175-83, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22886458

RESUMO

OBJECTIVE: To determine whether concentrations of oxidative stress markers of follicular fluid and serum are different in GnRH agonist protocol from GnRH antagonist protocol. MATERIAL AND METHOD: This was a cross-sectional study. Eighty-four women undergoing controlled ovarian stimulation with either GnRH agonist (n = 39) or GnRH antagonist protocols (n = 45) for IVF/ICSI treatment were assigned by a physician. Blood was obtained at the time of oocyte retrieval, and follicular fluid (FF) from the mature follicles of each ovary was centrifuged and frozen until analysis. Malondialdehyde (MDA), nitric oxide (NO), protein carbonyl (PC), hydroxyl proline (OH-P), sodium oxide dismutase (SOD), reduced glutathione (GSH), glutathione peroxidase (GSH-Px), adenosine deaminase (ADA) and xanthine oxidase (XO) were assessed in the serum and follicular fluid of each participants. RESULTS: The mean serum concentrations of GSH-Px, GSH and MDA were lower in the GnRH antagonist group compared to GnRH agonist group, but mean serum SOD was higher in the GnRH antagonist group. The mean follicular SOD, ADA and NO were higher in GnRH antagonist group than GnRH agonist group. The IVF/ICSI outcomes were similar in both groups. CONCLUSION(S): GnRH antagonist protocol is associated with increased oxidative stress. The relation of GnRH analogues with oxidative stress and its implication in follicular growth needs to be addressed in further studies.


Assuntos
Biomarcadores , Hormônio Liberador de Gonadotropina/agonistas , Hormônio Liberador de Gonadotropina/antagonistas & inibidores , Infertilidade/terapia , Estresse Oxidativo , Adulto , Biomarcadores/análise , Biomarcadores/sangue , Estudos Transversais , Feminino , Fertilização in vitro , Líquido Folicular/química , Antagonistas de Hormônios/administração & dosagem , Humanos , Masculino , Recuperação de Oócitos , Indução da Ovulação/métodos , Injeções de Esperma Intracitoplásmicas
16.
Arch Gynecol Obstet ; 286(1): 197-200, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22392489

RESUMO

PURPOSE: To evaluate the expression of c-kit (CD117) in endometrial hyperplasia and endometrial cancer. METHODS: Expression of c-kit in 10 normal endometrium, 18 simple endometrial hyperplasia, 16 complex endometrial hyperplasia (10 cases with atypia and 6 cases without atypia), and 6 endometrial cancer were investigated by immunohistochemistry. RESULTS: c-Kit expression decreased as the lesion progressed to endometrial cancer. Immunostaining was mostly focal and weak in the normal endometrium and was mostly diffuse and strong in the simple and complex endometrial hyperplasia. CONCLUSIONS: Simple and complex hyperplastic endometrial tissues express diffuse cytoplasmic staining for c-kit and the expression decreases with the progression of the lesion.


Assuntos
Neoplasias do Endométrio/metabolismo , Endométrio/metabolismo , Endométrio/patologia , Proteínas Proto-Oncogênicas c-kit/metabolismo , Análise de Variância , Transformação Celular Neoplásica/metabolismo , Feminino , Humanos , Hiperplasia/metabolismo , Imuno-Histoquímica , Proto-Oncogene Mas
17.
Endocrine ; 41(3): 424-9, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22203468

RESUMO

To assess maternal serum and cord blood apelin-36 and nesfatin-1 concentrations in pregnant women with and without gestational diabetes mellitus (GDM). Thirty pregnant women with GDM and 30 gestational age matched healthy pregnant subjects participated to the study. Maternal serum and cord blood nesfatin-1 and apelin-36 levels were measured with ELISA, at the time of birth. The relationships between maternal serum and cord blood nesfatin-1 and apelin-36 levels, anthropometric and metabolic parameters were also assessed. Maternal serum apelin-36 levels were found higher (13.5 ± 8.3 vs. 9.6 ± 5.9 ng/ml, P = 0.001) and nesfatin-1 levels were found lower (5.5 ± 8.1 vs. 8.1 ± 23.9 ng/ml, P = 0.001) in patients with GDM compared with control pregnant women. However, the cord blood apelin-36 levels (8.8 ± 4.3 and 8.2 ± 1.9 ng/ml, P = 0.618) and nesfatin-1 levels (5.4 ± 4.0 and 6.2 ± 10.3 ng/ml, P = 0.688) were similar in the GDM and control groups, respectively. Maternal serum apelin-36 and nesfatin-1 levels correlated positively with their respective cord blood levels. Maternal serum and cord blood apelin-36 levels correlated negatively with the gestational age and birth weight. Similarly maternal serum and cord blood nesfatin-1 levels correlated negatively with the gestational age, but there was no correlation with the birth weight. We did not find a correlation between maternal serum apelin-36 and nesfatin-1 levels, maternal age, BMI, fasting glucose, fasting insulin, and HOMA-IR. Also cord blood apelin-36 and nesfatin-1 levels did not correlate with the maternal age, BMI, HOMA-IR, cord blood glucose, and cord blood insulin levels. Our results indicate that apelin-36 concentrations increase and nesfatin-1 concentrations decrease in maternal serum of women with GDM.


Assuntos
Proteínas de Ligação ao Cálcio/sangue , Proteínas de Ligação a DNA/sangue , Diabetes Gestacional/sangue , Peptídeos e Proteínas de Sinalização Intercelular/sangue , Proteínas do Tecido Nervoso/sangue , Adulto , Apelina , Biomarcadores/sangue , Peso ao Nascer , Feminino , Sangue Fetal/metabolismo , Idade Gestacional , Humanos , Recém-Nascido , Insulina/sangue , Masculino , Nucleobindinas , Projetos Piloto , Período Pós-Parto/sangue , Gravidez
18.
Endocrine ; 40(2): 237-42, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21499819

RESUMO

We aimed to evaluate plasma asymmetric dimethylarginine (ADMA) concentrations and its relation with insulin sensitivity/resistance indices in pregnant women with different degrees of carbohydrate intolerance. This study included a two step approach; 50 g glucose challenge test (GCT) followed by 100 g oral glucose tolerance test (OGTT) was used for diagnosis of carbohydrate intolerance within 24-28th weeks of gestation. Pregnant women with positive GCT but negative OGTT (AGCT group, n=30) and gestational diabetics (GDM group, n=58) were compared to healthy pregnant controls (n=50). Plasma ADMA concentration and its relationship with glucose and insulin levels and insulin sensitivity/resistance indices (HOMA-IR, QUICKI, ISIOGTT) were evaluated. Both AGCT and GDM groups were found to have similarly higher plasma ADMA levels than control subjects (3.60±1.21; 4.00±1.70; 2.65±0.82 µmol/l, respectively, P=0.001). ADMA was significantly but slightly correlated with insulin sensitivity/resistance indices and moderately correlated with 2-h insulin level. The 2-h insulin value of the OGTT was the independent influencing constant for ADMA (R=0.57, P=0.0001). In conclusion, plasma asymmetric dimethylarginine level was higher in cases with abnormal glucose challenge test but normal OGTT as well as in gestational diabetics, compared to pregnant women with normal glucose tolerance. The elevated ADMA level in pregnant women with carbohydrate intolerance may possibly be due to elevated insulin level.


Assuntos
Arginina/análogos & derivados , Diabetes Gestacional/sangue , Diabetes Gestacional/fisiopatologia , Adulto , Arginina/sangue , Glicemia/análise , Índice de Massa Corporal , Estudos de Casos e Controles , Cromatografia Líquida de Alta Pressão , Diabetes Gestacional/diagnóstico , Diagnóstico Precoce , Feminino , Intolerância à Glucose/etiologia , Teste de Tolerância a Glucose/métodos , Humanos , Hiperglicemia/etiologia , Insulina/sangue , Resistência à Insulina , Gravidez , Terceiro Trimestre da Gravidez , Estudos Prospectivos , Reprodutibilidade dos Testes , Espectrometria de Fluorescência
19.
Fertil Steril ; 95(6): 2125.e9-11, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21292255

RESUMO

OBJECTIVE: To report an emergency approach of random-start controlled ovarian hyperstimulation (COH) in the late follicular or luteal phase of the menstrual cycle for embryo cryopreservation in patients with cancer. DESIGN: Case series. SETTING: Academic tertiary referral centers. PATIENT(S): Three patients with a diagnosis of breast cancer requiring emergency fertility preservation in the late follicular or luteal phase of the menstrual cycle. INTERVENTION(S): After baseline pelvic ultrasound and hormonal evaluation, random-start COH was commenced immediately on menstrual cycle days 11, 14, or 17 with use of letrozole 2.5 mg/d and recombinant FSH 150 to 300 IU/d. Gonadotropin-releasing hormone antagonist was administered to prevent ovulation in all cases. Ovulation was triggered with either 250 µg of recombinant hCG or 10,000 IU of urinary hCG. MAIN OUTCOME MEASURE(S): Number of oocytes harvested, maturity and fertilization rates, number of embryos frozen. RESULT(S): Nine to 17 oocytes were harvested, resulting in the freezing of seven to 10 embryos with the mean maturity and fertilization rates of 58.8% to 77.7% and 69.2% to 87.5%, respectively. CONCLUSION(S): In an emergent setting, ovarian stimulation can be started at a random cycle date for the purpose of fertility preservation without compromising fertilization rates in letrozole cycles.


Assuntos
Serviços Médicos de Emergência/métodos , Infertilidade Feminina/prevenção & controle , Ciclo Menstrual/efeitos dos fármacos , Nitrilas/administração & dosagem , Indução da Ovulação/métodos , Preservação Biológica/métodos , Triazóis/administração & dosagem , Adulto , Inibidores da Aromatase/administração & dosagem , Neoplasias da Mama/terapia , Carcinoma/terapia , Criopreservação/métodos , Esquema de Medicação , Feminino , Fertilidade/fisiologia , Humanos , Letrozol , Ciclo Menstrual/fisiologia , Recuperação de Oócitos/métodos , Oócitos , Fatores de Tempo
20.
Gynecol Endocrinol ; 27(11): 915-9, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21294689

RESUMO

We aimed to determine the independent predictors of cardiovascular risk in polycystic ovarian syndrome (PCOS). Ninety-one PCOS and 51 control patients were enrolled to our prospective cross sectional case-control study. In early follicular phase hormonal and lipid profile, fasting insulin and CRP (hs-CRP) levels and glucose levels on fasting and 2 h after the 75 g glucose intake were determined. Insulin resistance (IR) was evaluated with homeostasis model assessment and free testosterone was determined with free androgen index. PCOS was found to be associated with dyslipidemia, hyperandrogenism, IR and sub-clinical inflammation. The prevalence of overweight-obesity (41.8% vs. 25.5%, p = 0.038), IR (42.9% vs. 23.5%, p = 0.035) and glucose intolerance (15.38% vs. 1.96%, p = 0.043) were significantly higher in PCOS compared to control group. Independent predictors of the risk of elevated hs-CRP level were PCOS status (OR = 5, 95% CI: 1.55-16.14, p = 0.007) and high BMI (OR = 4.2, 95% CI: 1.2-14.2, p = 0.022) and high BMI (OR = 1.2, 95% CI: 1.05-1.4, p = 0.007) and of TC/HDL ratio was high BMI (OR = 1.21, 95% CI: 1.05-1.4, p = 0.009) and increasing age (OR = 1.11, 95% CI: 1.01-1.2, p = 0.04). The presence of PCOS, independent from obesity and IR, is the strongest predictor of elevated hs-CRP level. Obesity and advanced age further increases the cardiovascular risk in PCOS.


Assuntos
Doenças Cardiovasculares/epidemiologia , Síndrome do Ovário Policístico/fisiopatologia , Adolescente , Adulto , Glicemia , Índice de Massa Corporal , Doenças Cardiovasculares/sangue , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/fisiopatologia , Estudos de Casos e Controles , Estudos Transversais , Feminino , Fase Folicular , Humanos , Resistência à Insulina , Lipídeos/sangue , Síndrome do Ovário Policístico/complicações , Estudos Prospectivos , Fatores de Risco , Turquia/epidemiologia , Adulto Jovem
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