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1.
J Turk Ger Gynecol Assoc ; 20(2): 97-105, 2019 05 28.
Artigo em Inglês | MEDLINE | ID: mdl-30206047

RESUMO

Objective: We aimed to compare the first trimester screening profiles of spontaneous (n=972) and in in vitro fertilization (IVF) pregnancies (n=339) in a population of patients who had uncomplicated singleton pregnancies comparable for maternal age, gestation, body mass index, and ethnicity. Material and Methods: A non-interventional analysis of retrospective cohort data and review of the literature. Results: All IVF pregnancies were achieved via intracytoplasmic sperm injection using the same ovarian stimulation protocol with recombinant follicle-stimulating hormone and a gonadotropin-releasing hormone antagonist, cetrorelix acetate. The means of the multiple of median (MoM) of pregnancy-associated plasma protein-A (PAPP-A) were slightly lower in the fresh (1.19±0.6 vs 1.33±0.7, respectively; p=0.056) and frozen embryo transfer (1.03±0.5 vs 1.33±0.7, respectively; p=0.036) IVF pregnancies compared with natural conceptions. However, when the medians of the MoMs of PAPP-A and beta-human chorionic gonadotrophin (ß-hCG), and their distributions were compared across the mode of conception, there were no differences between IVF pregnancies spontaneous pregnancies. Furthermore, the scatterplot diagram and curve fitting regression analyses revealed no difference in the temporal relations of ß-hCG and PAPP-A with each other and gestational age between spontaneous and IVF pregnancies. Conclusion: These results support the notion that uncomplicated singleton IVF pregnancies have similar first trimester screening profiles to spontaneous conceptions.

2.
Mol Reprod Dev ; 85(11): 858-864, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-29995320

RESUMO

We aimed in this study to explore if sphingosine-1-phosphate (S1P) reduces apoptosis of primordial follicles during cryopreservation of human ovarian cortical samples. Ovarian cortical tissue fragments obtained from young patients who underwent laparoscopic excision of benign ovarian cysts were used for the experiments. The samples were slow-frozen and thawed with and without S1P at 200 and 400 µM, cultured for 1 day, and then were fixed and processed for both histomorphological assessment and detection of apoptosis with immunohistochemistry using apoptosis marker cleaved caspase-3. Follicle counts were expressed as the mean number of follicles per mm2 . The mean number of primordial follicles and in vitro estradiol (E2) and anti-mullerian hormone (AMH) production of the slow-frozen and thawed samples were significantly reduced compared with fresh unfrozen samples. S1P treatment at 400 µM but not 200 µM concentration resulted in a significant increase in the number of surviving primordial follicles and in vitro E2 and AMH productions of the samples compared with their counterparts slow-frozen without S1P. We found that that there was a significant decrease in the number of primordial follicles with their oocytes stained positive for cleaved caspase-3 in the slow-frozen samples S1P 400 µM in comparison with the samples slow-frozen without S1P. These results suggest that S1P may ameliorate follicle atresia occurring in human ovarian cortical samples during cryopreservation.


Assuntos
Criopreservação , Lisofosfolipídeos/metabolismo , Oócitos/metabolismo , Folículo Ovariano/metabolismo , Esfingosina/análogos & derivados , Adulto , Hormônio Antimülleriano/metabolismo , Apoptose , Caspase 3/metabolismo , Estradiol/metabolismo , Feminino , Humanos , Oócitos/citologia , Folículo Ovariano/citologia , Esfingosina/metabolismo
3.
Cell Death Dis ; 9(4): 421, 2018 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-29549247

RESUMO

Granulosa cell tumor of the ovary (GCT) is a very rare tumor, accounting for only 2% of all ovarian tumors. It originates from sex cords in the ovary and can be divided into adult (95%) and juvenile (5%) types based on histologic findings. To date, no clear etiologic process has been identified other than a missense point mutation in the FOXL2 gene. Our previous works showed that c-Jun N-terminal kinase (JNK) pathway plays critical role in cell cycle progression and mitosis of normal and immortalized granulosa cells and follicle growth in rodent ovaries. These findings led us to investigate the role of JNK pathway in the granulosa cell tumor of the ovary. We used two different GCT cell lines (COV434 and KGN) and fresh GCT samples of adult and juvenile types obtained from the patients during surgery. We have discovered that endogenous kinase activity of JNK is markedly enhanced in the GCT samples and cell lines, whereas it was almost undetectable in mitotic non-malignant human granulosa cells. The inhibition of JNK pathway in GCT cell lines with two different pharmacologic inhibitors (SP600125 and AS601245) or siRNA resulted in a dose-dependent reduction in in vitro cell growth, increased apoptosis and diminished estradiol and AMH productions. JNK inhibition was also associated with a decrease in the number of cells positive for mitosis marker phospho-histone H3Ser 10 in the asynchronous cells; and diminished EdU uptake during S phase and cell cycle arrest at G2/M-phase transition in the synchronized cells. Ex vivo treatment of patient-derived GCT samples with JNK inhibitors for 24 h significantly decreased their in vitro growth and estradiol and AMH productions. Furthermore, in human GCT xenograft model, in vivo tumor growth was significantly reduced and plasma AMH levels were significantly decreased in SCID mice after administration of JNK inhibitors and siRNA. These findings suggest that targeting JNK pathway may provide therapeutic benefit in the treatment of granulosa cell tumors for which currently no curative therapy exists beyond surgery.


Assuntos
Tumor de Células da Granulosa/patologia , Proteínas Quinases JNK Ativadas por Mitógeno/metabolismo , Neoplasias Ovarianas/patologia , Acetonitrilas/farmacologia , Acetonitrilas/uso terapêutico , Animais , Antracenos/farmacologia , Antracenos/uso terapêutico , Hormônio Antimülleriano/sangue , Hormônio Antimülleriano/metabolismo , Apoptose/efeitos dos fármacos , Benzotiazóis/farmacologia , Benzotiazóis/uso terapêutico , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Estradiol/metabolismo , Feminino , Pontos de Checagem da Fase G2 do Ciclo Celular/efeitos dos fármacos , Tumor de Células da Granulosa/tratamento farmacológico , Tumor de Células da Granulosa/metabolismo , Humanos , Proteínas Quinases JNK Ativadas por Mitógeno/antagonistas & inibidores , Proteínas Quinases JNK Ativadas por Mitógeno/genética , Camundongos , Camundongos SCID , Mitose , Neoplasias Ovarianas/tratamento farmacológico , Neoplasias Ovarianas/metabolismo , Interferência de RNA , RNA Interferente Pequeno/metabolismo , Transdução de Sinais/efeitos dos fármacos
4.
Eur J Obstet Gynecol Reprod Biol ; 222: 19-24, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29331755

RESUMO

OBJECTIVE(S): We aimed to analyze if anti-apoptotic agent sphingosine-1-phosphate offers protection against in vitro follicle atresia during culture of human ovarian cortical samples. STUDY DESIGN: A translational research study of ex-vivo and in-vitro models of human ovarian tissue. MATERIAL AND METHODS: Ovarian cortical tissue fragments (1 × 0.5 cm) were obtained from young patients (n = 15 mean age ±â€¯SD: 29.4 ±â€¯2.5) undergoing laparoscopic excision of benign ovarian cysts. The samples were cultured for 4 days in 24-well format culture plate using conventional culture techniques. S1P was added to culture media at 200 and 400 µM concentrations. At the end of culture period the samples were processed for both histomorphological assessment and detection of apoptosis with immunohistochemistry and western blot methods using apoptosis marker cleaved caspase-3. In vitro estradiol (E2) and AMH productions of the samples were measured with ELISA. Follicle counts were expressed as the mean number of follicles per mm2. RESULTS: The mean numbers of primordial and secondary follicles were 3.2 ±â€¯0.4 and 0.7 ±â€¯0.2 respectively, in the fresh fixed uncultured samples. After four days of culture their numbers were significantly decreased to 0.8 ±â€¯0.2 (p < 0.01) and 0.1 ±â€¯0.05 (p < 0.05) respectively, in the control samples cultured without S1P compared to fresh fixed samples. S1P treatment decreased follicle atresia and significantly higher number of primordials (2.3 ±â€¯0.3, p < 0.01) and secondary follicles (0.5 ±â€¯0.1, p < 0.05) survived in the samples after 4 day culture period compared to those cultured without S1P. In line with this there was dose-dependent decrease in the protein expression of cleaved caspase-3 on western blot and in the number of apoptotic follicles stained positive for cleaved caspase-3 on immunohistochemistry in the samples incubated with S1P at 200 and 400 µM concentrations. Furthermore, those samples incubated with S1P produced significantly higher amounts of E2 (2339 ±â€¯321 vs. 1156 ±â€¯125 pg/mL respectively, p < 0.01) compared to control samples. CONCLUSIONS: These results suggest that S1P promotes follicle survival in human ovarian cortical samples in vitro.


Assuntos
Apoptose/efeitos dos fármacos , Regulação para Baixo/efeitos dos fármacos , Lisofosfolipídeos/farmacologia , Folículo Ovariano/efeitos dos fármacos , Substâncias Protetoras/farmacologia , Esfingosina/análogos & derivados , Adulto , Hormônio Antimülleriano/metabolismo , Biomarcadores/metabolismo , Western Blotting , Caspase 3/metabolismo , Sobrevivência Celular/efeitos dos fármacos , Ensaio de Imunoadsorção Enzimática , Estradiol/metabolismo , Feminino , Atresia Folicular/efeitos dos fármacos , Humanos , Imuno-Histoquímica , Cistos Ovarianos/patologia , Cistos Ovarianos/cirurgia , Folículo Ovariano/metabolismo , Folículo Ovariano/patologia , Proteólise/efeitos dos fármacos , Esfingosina/farmacologia , Técnicas de Cultura de Tecidos
5.
PLoS One ; 12(11): e0188334, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29176793

RESUMO

Occult primary ovarian insufficiency (also known as incipient ovarian failure or diminished ovarian reserve) is defined as serum AMH level ≤1.1ng/mL in women under age 30. Limited data is available regarding the prevalence of occult POI, the preceding menstrual characteristics and its natural course in otherwise healthy young females. We aimed in this prospective observational study to determine the prevalence of occult POI in young females (< age 30) screened with serum AMH measurement; and analyze the patterns of change in their menstruation at initial assessment and one-year follow-up in relation to the changes in ovarian reserve quantitatively assessed with AMH and AFC. 963 young female college students under age 30 voluntarily participated in this study. 43 of them (4.4%) were diagnosed with occult POI as their AMH levels were ≤ 1.1ng/mL. Thirty-eight (83.4%) of them have regular cycles and denied any menstrual irregularity in the last 12 months. This rate was not statistically different from 7.3% of those with AMH>1.1ng/mL who reported at least one abnormal menstrual cycle in the last year (p = 0.36). Cycle length was significantly shorter in females with AMH ≤ 1.1ng/mL compared to those with AMH>1.1ng/mL (25.1±3.2 vs. 31.2±2.8 respectively, p<0.001). Karyotype, FMR-1 mutation analyses and auto-antibody screening returned normal in all. At one-year follow-up AMH, AFC and mean cycle length were further reduced compared to their values at initial assessment. Now, a greater proportion of the participants with occult POI were menstruating regularly at every 21 days compared to the initial evaluation one year ago (39.5% vs. 13.9% respectively, p = 0.013). Twenty-five underwent oocyte cryopreservation. These findings underscore the importance of screening young females with AMH for possible occult POI. It also emphasizes that young females with critically diminished ovarian reserve may continue to menstruate regularly without any characteristic menstrual abnormality other than shortening of cycle length.


Assuntos
Hormônio Antimülleriano/sangue , Ciclo Menstrual , Folículo Ovariano/patologia , Folículo Ovariano/fisiopatologia , Insuficiência Ovariana Primária/sangue , Insuficiência Ovariana Primária/fisiopatologia , Adulto , Contagem de Células , Demografia , Feminino , Hormônio Foliculoestimulante/sangue , Seguimentos , Humanos , Análise de Regressão
6.
Appl Nurs Res ; 36: 19-24, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28720234

RESUMO

PURPOSE: The aim of this study was to determine the effect of music therapy on the anxiety levels and pregnancy rates of women who underwent in vitro fertilization-embryo transfer. METHODS: This prospective randomized controlled trial was conducted with 186 infertile women who presented to the In Vitro Fertilization Unit at the American Hospital in Turkey between April 2015 and April 2016. The infertile women who met the inclusion criteria were assigned to the music therapy group or the standard therapy group through block randomization. The study data were collected using the Personal Information Form, and State-Trait Anxiety Inventory. Early treatment success was determined by serum beta human chorionic gonadotrophin levels seven or ten days after the luteal day zero. For the analysis, descriptive statistics, chi-square test, Fisher's exact test, independent sample t-test were used. RESULTS: After the embryo transfer, the mean state anxiety scores decreased in both groups, and the mean trait anxiety score decreased in the music therapy group; however, the difference was not statistically significant (p>0.05). Clinical pregnancy rates did not differ between the music (48.3%) and standard (46.4%) therapy groups. CONCLUSION: After the two sessions of music therapy, state and trait anxiety levels decreased and pregnancy rates increased, but the difference was not significant. Therefore, larger sample sizes and more sessions are needed to evaluate whether music therapy has an effect on clinical outcomes.


Assuntos
Ansiedade/etiologia , Ansiedade/terapia , Transferência Embrionária/psicologia , Fertilização in vitro/psicologia , Infertilidade Feminina/terapia , Musicoterapia , Taxa de Gravidez , Adulto , Feminino , Humanos , Gravidez , Estudos Prospectivos , Resultado do Tratamento , Turquia
7.
Mol Reprod Dev ; 84(7): 544-559, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28452156

RESUMO

Obtaining and fertilizing mature oocytes from immature follicles that were grown outside the body has conceptually attracted scientists for centuries, with initial attempts first documented in the 19th century. Significant progress has been made since then, due in part to a better understanding of folliculogenesis and improved techniques of in vitro follicle growth. Indeed, in vitro growth is now considered a reasonable approach to preserve or restore fertility when immature follicles and their oocytes need to be grown and matured outside the body. Certain patients would benefit from in vitro follicle growth, particularly those who carry a risk of cancer re-seeding after grafting of frozen-thawed ovarian tissue or who are at the risk of premature ovarian failure due to several intrinsic ovarian defects and genetic mutations that lead to accelerated follicle atresia and early exhaustion of the ovarian reserve. This review provides an update on the current status of in vitro growth of preantral human follicles, from initial efforts to the most recent achievements.


Assuntos
Criopreservação , Fertilidade , Oócitos/metabolismo , Folículo Ovariano/crescimento & desenvolvimento , Insuficiência Ovariana Primária , Feminino , Humanos , Técnicas de Cultura de Órgãos/métodos
8.
Reprod Toxicol ; 60: 82-91, 2016 04.
Artigo em Inglês | MEDLINE | ID: mdl-26746109

RESUMO

A recently developed technology (xCelligence) integrating micro-electronics and cell biology allows real-time, uninterrupted and quantitative analysis of cell proliferation, viability and cytotoxicity by measuring the electrical impedance of the cell population in the wells without using any labeling agent. In this study we investigated if this system is a suitable model to analyze the effects of mitogenic (FSH) and cytotoxic (chemotherapy) agents with different toxicity profiles on human granulosa cells in comparison to conventional methods of assessing cell viability, DNA damage, apoptosis and steroidogenesis. The system generated the real-time growth curves of the cells, and determined their doubling times, mean cell indices and generated dose-response curves after exposure to cytotoxic and mitogenic stimuli. It accurately predicted the gonadotoxicity of the drugs and distinguished less toxic agents (5-FU and paclitaxel) from more toxic ones (cisplatin and cyclophosphamide). This platform can be a useful tool for specific end-point assays in reproductive toxicology.


Assuntos
Antineoplásicos/toxicidade , Bioensaio/métodos , Células da Granulosa/efeitos dos fármacos , Mitógenos/toxicidade , Processamento de Sinais Assistido por Computador , Testes de Toxicidade/métodos , Apoptose/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Células Cultivadas , Dano ao DNA , Impedância Elétrica , Estradiol/metabolismo , Feminino , Células da Granulosa/citologia , Humanos , Progesterona/metabolismo
9.
Hum Reprod ; 30(12): 2912-25, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26466909

RESUMO

STUDY QUESTION: Is there any in vitro evidence for or against ovarian protection by co-administration of a GnRH agonist with chemotherapy in human? SUMMARY ANSWER: The co-administration of GnRH agonist leuprolide acetate with cytotoxic chemotherapy agents does not preserve ovarian reserve in vitro. WHAT IS KNOWN ALREADY: Randomized controlled trials of the co-administration of gonadotrophin-releasing hormone (GnRH) agonists with adjuvant chemotherapy to preserve ovarian function have shown contradictory results. This fact, together with the lack of a proven molecular mechanism of action for ovarian protection with GnRH agonist (GnRHa) places this approach as a fertility preservation strategy under scrutiny. We therefore aimed in this study to provide in vitro evidence for or against the role of GnRHa in the prevention of chemotherapy-induced damage in human ovary. STUDY DESIGN, SETTINGS, SIZE AND DURATION: This translational research study of ex vivo and in vitro models of human ovary and granulosa cells was conducted in a university hospital between 2013 and 2015. PARTICIPANTS/MATERIALS, SETTING, METHODS: Ovarian cortical pieces (n = 15, age 14-37) and mitotic non-luteinized (COV434 and HGrC1) and non-mitotic luteinized human granulosa cells (HLGC) expressing GnRH receptor were used for the experiments. The samples were treated with cyclophosphamide, cisplatin, paclitaxel, 5-FU, or TAC combination regimen (docetaxel, adriamycin and cyclophosphamide) with and without GnRHa leuprolide acetate for 24 h. DNA damage, apoptosis, follicle reserve, hormone markers of ovarian function and reserve (estradiol (E2), progesterone (P) and anti-mullerian hormone (AMH)) and the expression of anti-apoptotic genes (bcl-2, bcl-xL, bcl-2L2, Mcl-1, BIRC-2 and XIAP) were compared among control, chemotherapy and chemotherapy + GnRHa groups. MAIN RESULTS AND THE ROLE OF CHANCE: The greatest magnitude of cytotoxicity was observed in the samples treated with cyclophosphamide, cisplatin and TAC regimen. Exposure to these drugs resulted in DNA damage, apoptosis and massive follicle loss along with a concurrent decline in the steroidogenic activity of the samples. GnRHa co-administered with chemotherapy agents stimulated its receptors and raised intracellular cAMP levels. But it neither activated anti-apoptotic pathways nor prevented follicle loss, DNA damage and apoptosis induced by these drugs. LIMITATIONS, REASONS FOR CAUTION: Our findings do not conclusively rule out the possibility that GnRHa may offer protection, if any, through some other mechanisms in vivo. WIDER IMPLICATIONS OF THE FINDINGS: GnRH agonist treatment with chemotherapy does not prevent or ameliorate ovarian damage and follicle loss in vitro. These data can be useful when consulting a young patient who may wish to receive GnRH treatment with chemotherapy to protect her ovaries from chemotherapy-induced damage.


Assuntos
Antineoplásicos/farmacologia , Fármacos para a Fertilidade Feminina/administração & dosagem , Células da Granulosa/efeitos dos fármacos , Leuprolida/administração & dosagem , Reserva Ovariana/efeitos dos fármacos , Ovário/efeitos dos fármacos , Substâncias Protetoras/administração & dosagem , Adolescente , Adulto , Apoptose/efeitos dos fármacos , Apoptose/efeitos da radiação , Dano ao DNA/efeitos dos fármacos , Dano ao DNA/efeitos da radiação , Feminino , Preservação da Fertilidade/métodos , Células da Granulosa/efeitos da radiação , Humanos , Reserva Ovariana/efeitos da radiação , Ovário/efeitos da radiação , Adulto Jovem
10.
Hum Reprod ; 30(12): 2926-35, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26466914

RESUMO

STUDY QUESTION: Do different chemotherapy drugs exert the same magnitude of cytotoxicity on dormant primordial follicles and the growing follicle fraction in the ovary in vivo and on mitotic non-luteinized and non-mitotic luteinized granulosa cells in vitro? SUMMARY ANSWER: Cyclophosphamide (alkylating agent) and cisplatin (alkylating like) impacted both primordial and pre-antral/antral follicles and both mitotic and non-mitotic granulosa cells, whereas the anti-metabolite cancer drug gemcitabine was detrimental only to pre-antral/antral follicles and mitotic non-luteinized granulosa cells. WHAT IS KNOWN ALREADY: It is already known that anti-metabolite cancer drugs are less detrimental to the ovary than alkylating and alkylating like agents, such as cyclophosphamide and cisplatin. This assumption is largely based on the results of clinical reports showing lower rates of amenorrhea in women receiving anti-metabolite agent-based regimens compared with those treated with the protocols containing an alkylating drug or a platinum compound. But a quantitative comparison of gonadotoxicity with a histomorphometric proof of evidence has not been available for many chemotherapy drugs. Therefore, we combined in this study in vivo and in vitro models of human and rat origin that allows a comparative analysis of the impact of different chemotherapy agents on the ovary and granulosa cells using real-time quantitative cell indices, histomorphometry, steroidogenesis assays, and DNA damage and cell death/viability markers. We also aimed to investigate if there is a difference between mitotic and non-mitotic granulosa cells in terms of their sensitivity to the cytotoxic actions of chemotherapy drugs with different mechanisms of action. This issue has not been addressed previously. STUDY DESIGN, SIZE, DURATION: This translational research study involved in vivo analyses of ovaries in rats and in vitro analyses of granulosa cells of human and rat origin. PARTICIPANTS/MATERIALS, SETTING, METHODS: For the in vivo assays, 54 4- to 6-week old Sprague-Dawley young female rats were randomly allocated into four groups of 13 to receive a single IP injection of: saline (control), gemcitabine (200 mg/kg), cisplatin (50 mg/kg) or cyclophosphamide (200 mg/kg). The animals were euthanized 72 h later. Follicle counts and serum AMH levels were compared between the groups. In vitro cytotoxicity studies were performed using mitotic non-luteinized rat (SIGC) and human (COV434, HGrC1) granulosa cells, and non-mitotic luteinized human (HLGC) granulosa cells. The cells were plated at a density of 5000 cells/well using DMEM-F12 culture media supplemented with 10% FBS. Chemotherapy agents were used at their therapeutic blood concentrations. The growth of mitotic granulosa cells was monitored real-time using xCelligence system. Live/dead cell and apoptosis assays were also carried out using intravital Yo-Pro-1 staining and cleaved caspase-3 expression, respectively. Estradiol (E2), progesterone (P) and anti-Mullerian hormone (AMH) levels were assayed with ELISA. MAIN RESULTS AND THE ROLE OF CHANCE: Cyclophosphamide and cisplatin caused massive atresia of both primordials and growing follicles in the rat ovary whereas gemcitabine impacted pre-antral/antral follicles only. Cyclophosphamide and cisplatin induced apoptosis of both mitotic non-luteinized and non-mitotic luteinized granulosa cells in vitro. By contrast, cytotoxicity of gemcitabine was confined to mitotic non-luteinized granulosa cells. LIMITATIONS, REASONS FOR CAUTION: This study tested only three chemotherapeutic agents. The experimental methodology described here could be applied to other drugs for detailed analysis of their ovarian cytotoxicity. WIDER IMPLICATIONS OF THE FINDINGS: These findings indicate that in vivo and in vitro cytotoxic actions of chemotherapy drugs on the ovarian follicles and granulosa cells vary depending upon the their mechanism of action and the nature of the granulosa cells.


Assuntos
Antineoplásicos/farmacologia , Cisplatino/farmacologia , Ciclofosfamida/farmacologia , Desoxicitidina/análogos & derivados , Células da Granulosa/efeitos dos fármacos , Folículo Ovariano/efeitos dos fármacos , Animais , Hormônio Antimülleriano/sangue , Apoptose/efeitos dos fármacos , Caspase 3/metabolismo , Desoxicitidina/farmacologia , Estradiol/sangue , Feminino , Células da Granulosa/metabolismo , Folículo Ovariano/metabolismo , Progesterona/sangue , Ratos , Ratos Sprague-Dawley , Gencitabina
11.
Obstet Gynecol Surv ; 70(3): 196-210, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25769434

RESUMO

Systemic lupus erythematosus (SLE) is a chronic autoimmune systemic disease that mainly affects women of reproductive age. Emerging data from recent molecular studies show us that estrogen hormone plays a central role in the development of this disease. By acting via its cognate receptors ERα and ERß expressed on immune cells, estrogen can modulate immune function in both the innate and adaptive immune responses. Interestingly, estrogen may also evoke autoimmune responses after binding to B lymphocytes leading to the generation of high-affinity autoantibodies and proinflammatory cytokines (so-called estrogen-induced autoimmunity). Unfortunately, reproductive function of young female patients with this disease is commonly compromised by different pathophysiologic processes. First, ovarian reserve is diminished even in the presence of mild disease suggesting a direct impact of the disease itself on ovarian function possibly due to ovarian involvement in the form of autoimmune oophoritis. Second, SLE patients with severe manifestations of the disease are treated with alkylating chemotherapy agent cyclophosphamide. Cyclophosphamide and other drugs of alkylating category have the highest gonadotoxicity. Therefore, SLE patients exposed to cyclophosphamide have a much higher risk of developing infertility and premature ovarian failure than do the counterparts who are treated with other less toxic treatments. Third, the functions of the hypothalamic pituitary ovarian axis are perturbed by chronic inflammatory state. And finally adverse pregnancy outcomes are more commonly observed in SLE patients such as fetal loss, preterm birth, intrauterine fetal growth restriction, preeclampsia-eclampsia, and fetal congenital heart block. We aimed in this review article to provide the readers an update on how estrogen hormone closely interacts with and induces lupus-prone changes in the immune system. We also discuss ovarian function and other reproductive outcomes in SLE patients and the current strategies to preserve their fertility in the light of the most recent evidence-based findings of the clinical trials and molecular studies.


Assuntos
Ciclofosfamida/efeitos adversos , Estrogênios/fisiologia , Fertilidade/fisiologia , Lúpus Eritematoso Sistêmico/fisiopatologia , Ovário/fisiopatologia , Insuficiência Ovariana Primária/induzido quimicamente , Feminino , Humanos , Lúpus Eritematoso Sistêmico/complicações , Gravidez , Complicações na Gravidez , Resultado da Gravidez , Insuficiência Ovariana Primária/terapia
12.
Turk J Obstet Gynecol ; 12(4): 215-219, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28913072

RESUMO

OBJECTIVE: Detection of factors that affect the success of single-dose methotrexate treatment in ectopic pregnancy. MATERIALS AND METHODS: We investigated 99 patients who had been treated with single-dose methotrexate for ectopic pregnancy in our clinic between January 2009 and June 2014. Demographic, clinical, and laboratory results of possible factors that affect treatment success were retrospectively analyzed. Successfully and unsuccessfully treated patients were compared based on their pre-treatment results. RESULTS: The success rate of single-dose methotrexate treatment was found to be 70.7%. No significant difference was found between succesfully and unsuccessfully treated patients before treatment in terms of factors such as gestational weeks, mass size, presence of yolk sac, and presence of free fluid (p=0.224, p=0.201, p=0.200, p=0.200). Serum ß-hCG values in patients whose treatment was unsuccessful was found to be higher compared with the successfully treated group (mean ß-hCG value of unsuccessful group: 4412±3501 mIU/mL; mean ß-hCG value of successful group: 1079±942 mIU/mL; p<0.001). CONCLUSION: Single-dose methotrexate treatment is an effective and reliable method in the treatment of ectopic pregnancy. Elevation of serum ß-hCG value stands as the main prognostic factor that affects the success of single-dose methotrexate treatment.

13.
Gynecol Endocrinol ; 30(5): 388-91, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24665930

RESUMO

Development of in vitro technologies that will allow the culture of early stage follicles before antral stage is an essential part of research in reproductive biology in order to understand the ovarian folliculogenesis better. Current evidence suggests that oocyte and somatic cells-derived growth factors interacting with each other and extracellular matrix proteins at paracrine level are involved in this early, gonadotrophin-independent phase of follicle growth. Basement membrane matrix protein (Matrigel™) is a soluble gel rich in extracellular matrix proteins and growth factors. Activin A promotes preantral follicle growth in vivo by inducing the proliferation of granulosa cells and by upregulating the expression of FSH receptor and aromatase enzyme. We hypothesized that activin A and matrigel may provide a better in vitro environment for early stage preantral follicles. Preantral follicles isolated from 14-21 day old BALB/c mice were cultured in matrigel ± activin A for four days. The growth (119.4% versus 45.4%, p < 0.05; respectively) and survival rates (76.3% versus 43.7%, p < 0.05; respectively) of the follicles treated with activin A were significantly higher compared to those without activin A. These results suggest that Activin A and matrigel provide a better in vitro milieu for the growth of isolated ovarian follicles.


Assuntos
Ativinas/farmacologia , Colágeno/farmacologia , Laminina/farmacologia , Folículo Ovariano/efeitos dos fármacos , Proteoglicanas/farmacologia , Animais , Técnicas de Cultura de Células , Combinação de Medicamentos , Feminino , Estimativa de Kaplan-Meier , Camundongos Endogâmicos BALB C , Folículo Ovariano/citologia , Folículo Ovariano/crescimento & desenvolvimento , Proteínas Recombinantes/farmacologia
14.
J Turk Ger Gynecol Assoc ; 14(4): 246-9, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24592116

RESUMO

Advanced ovarian pregnancy is a quite rare condition. Due to the high maternal and neonatal mortality rates, early and accurate diagnosis is vital. Lack of sufficient data led us to search the literature and compile available data on the topic. A 33-year-old woman presented with acute abdomen at 34 weeks of gestation. She underwent laparotomy, which revealed a live foetus surrounded by an intact amnion membrane located in the left adnexal area. The patient delivered a live female infant. Heavy bleeding from the placenta necessitated salpingo oophorectomy. Histological examination of the removed tissue confirmed the ovarian pregnancy. Because of the substantial risk of adverse outcomes, this condition should be borne in mind, especially in cases presenting with acute abdomen during pregnancy.

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