RESUMEN
We aimed to compare repeated LPP (luteal phase oestradiol LPP/GnRH antagonists protocol) treatment with different protocol results with poor ovarian response (POR) patients. Two hundred and ninety-three cycles with poor ovarian reserve who underwent LPP, microdose flare up protocol and antagonist protocol were included in the study. Of these, 38 patients were applied LPP in the first cycle and LPP in the second cycle. After the microdose or antagonist protocol applied in the first cycle, LPP was applied to 29 patients in the second cycle. There are 128 patients who received LPP only once and 31 patients who received microdose flare up only once. The clinical pregnancy rate was monitored higher in LPP application group in the second cycle than the patients who received only LPP and patients who received LPP after different protocols (p = .035). b-hCG positivity per embryo and clinical pregnancy rate were found to be significantly higher with the LPP application in the second protocol (p = .000, p = .001). Repeated LPP may be the first choice protocol for low ovarian reserve patients.
What is already known on this subject? There is no standard treatment protocol applied to patients with low ovarian reserve. In this patient group, the rate of lack of response to stimulation and cycle cancellation is high. Increasing FSH level in patients with poor ovarian reserve causes the formation of larger follicles by increasing the sensitisation of follicles in the late luteal phase.What do the results of this study add? Our study was conducted for the first time in the literature. We compared the results of second cycle LPP (luteal phase oestradiol LPP/GnRH antagonists protocol) application in patients with low ovarian reserve who resulted in failed IVF after commonly used LPP, microdose flare up protocol and antagonist protocols.What are the implications of these findings for clinical practice and/or further research? Luteal phase oestrogen LPP/GnRH antagonist may be the first choice in patients with poor ovarian reserve patients. In unsuccessful cases, the LPP protocol should be considered in the retreatment for the second time.
Asunto(s)
Estradiol , Reserva Ovárica , Femenino , Embarazo , Humanos , Fase Luteínica , Hormona Liberadora de Gonadotropina , Fertilización In Vitro/métodos , Inducción de la Ovulación/métodos , Índice de Embarazo , Antagonistas de Hormonas/uso terapéuticoRESUMEN
Hyperpolarization is associated with decreased intracellular Na+ concentration through the closure of the epithelial Na+ channels (ENaCs) during capacitation. 5'-AMP-activated protein kinase (AMPK) is involved in the regulation of Na+ transport by reducing ENaC-ß abundance in the plasma membrane in somatic cells. However, it is not known whether AMPK acts on ENaCs in sperm. The aim of the present study was to analyze the role of AMPK activation in the regulation of ENaC and to examine its relationship with capacitation-associated hyperpolarization of human sperm. Human sperm were treated with AICAR (AMPK activator) in non-capacitating and capacitating conditions. AMPK activity and ENaC-ß concentration were evaluated by ELISA. Flow cytometry was used to measure tyrosine phosphorylation, hyperpolarization, intracellular Na+ concentration and acrosome reaction. Immunofluorescence staining was carried out to analyze the distribution of ENaC-ß and CD46 in sperm. We found that induction of capacitation triggered AMPK phosphorylation. AMPK activation by AICAR increased tyrosine phosphorylation. AICAR decreased ENaC-ß levels, mainly localized at the principal-piece of the flagellum, resulting in lower intracellular Na+ concentration and increased hyperpolarization of the plasma membrane. Altogether, these data provide evidence that AMPK activation is involved in capacitation-associated hyperpolarization by reducing ENaC abundance in human sperm.
Asunto(s)
Canales Epiteliales de Sodio , Capacitación Espermática , Proteínas Quinasas Activadas por AMP/metabolismo , Canales Epiteliales de Sodio/metabolismo , Humanos , Masculino , Fosforilación , Semen/metabolismo , Sodio/metabolismo , Espermatozoides , Tirosina/metabolismoRESUMEN
OBJECTIVE: The aim of this study was to analyze the results of microsurgical testicular sperm extraction (micro-TESE) and investigate the potential factors that may affect the successful sperm retrieval and timing of micro-TESE. METHODS: A total of 56 patients with nonobstructive azoospermia (NOA) who underwent micro-TESE procedure between January 2017 and December 2019 were retrospectively analyzed. The patient age, marriage duration, infertility duration, smoking, chronic illness, varicocele status, previous scrotal surgeries, and the presence of genetic disease were noted by an urologist for all patients. RESULTS: The mean age of patients was 33.28±4.4 (22-44) years. Our total sperm-retrieval rate was 55.4% (n:31). Sixteen (28.6%) pregnancies were achieved and 15 (26.8%) healthy live births could be managed. Only the marriage duration (p=0.016) and infertility duration (p=0.015) were detected to be the significant factors to manage successful sperm retrieval. Men with NOA younger than 35.2 years and having a female partner younger than 36.9 years seemed to have the best chance to have a living healthy baby. CONCLUSIONS: The fertility decreased by both male and female age and for men with NOA. The early visit to doctor seemed to have positive effect.
Asunto(s)
Azoospermia , Adulto , Niño , Femenino , Humanos , Masculino , Embarazo , Estudios Retrospectivos , Recuperación de la Esperma , Espermatozoides , TestículoRESUMEN
PURPOSE: There is evidence that follicular phase progesterone rise [FPPR] adversely affects fresh in vitro fertilization [IVF] cycles. A single daily dose of cetrorelix has been used to prevent early luteinizing Hormone (LH) surge. We speculated that doubling the daily dose might have a positive effect in patients who have early LH surges despite receiving the single daily dose treatment. However, a double daily dose of cetrorelix seems to cause FPPR in poor ovarian response (POR) patients. MATERIALS AND METHODS: On human chorionic gonadotropin [hCG] injection days, the progesterone levels of POR patients who received a single daily dose of cetrorelix (group 1, n = 59) were compared with progesterone levels of the patients who received a double daily dose of cetrorelix (group 2, n = 75). The two groups had statistically similar demographic data. The patients who had FPPR were detected, and a comparison of progesterone levels, using 0.8, 1.0, and 1.2 [ng/mL] of progesterone as cut-off levels, was made between patients of both groups. RESULTS: FPPR patients in group 2 had significantly higher progesterone levels during hCG day, contrary to expectations. When progesterone cut-off levels of 0.8, 1.0, and 1.2 [ng/mL] were used for group 1 patients, 15.3%, 13.6%, and 6.8% of the patients developed FPPR, respectively When the progesterone cut-off levels of 0.8, 1.0, and 1.2 [ng/mL] were used for group 2, the results detected were 45.3%, 30.7%, and 21.3%, respectively. A significant statistical difference in progesterone levels was observed between the groups. CONCLUSION: While the double daily dose of cetrorelix was initially thought to more effectively suppress early LH rise by some authors, we have seen that it increases the FPPR more when compared to a single daily dose regime. We suggest using frozen cycles instead of fresh cycles in order to have better endometrial receptivity in patients who seem to benefit from higher daily doses of cetrorelix.
Asunto(s)
Hormona Liberadora de Gonadotropina/análogos & derivados , Inducción de la Ovulación/normas , Progesterona/análisis , Fase Folicular/efectos de los fármacos , Fase Folicular/metabolismo , Hormona Liberadora de Gonadotropina/administración & dosificación , Hormona Liberadora de Gonadotropina/uso terapéutico , Humanos , Inducción de la Ovulación/métodos , Inducción de la Ovulación/estadística & datos numéricos , Progesterona/sangre , Estadísticas no ParamétricasRESUMEN
OBJECTIVE: Testicular tumor constitutes 1% of male neoplasms. Infertility can be determined in patients with testicular tumors before orchiectomy due to the deterioration of spermatogenesis. The aim of this study was to show the clinical, radiological, and pathological characteristics and spermiogram results of patients with testicular tumor and their relationship with each other. METHODS: The data of patients who underwent orchiectomy due to testicular tumor between 2016 and 2019 were reviewed retrospectively. These data included sociodemographic data of the patients, pretreatment spermiogram characteristics, level of serum tumor markers, characteristics of the ultrasonography, type of orchiectomy, and histopathological examination. RESULTS: This study included 53 male patients, with a mean age of 33.51±12.86 years. The mean levels of all tumor markers were above the reference levels. The mean tumor size was 34.68±23.32 mm. Multiple localizations and microlithiasis were detected in 11.3 and 13.2% of the tumors, respectively. The most common masses were hypoechoic (n=37; 69.8%) and hypervascular (n=47; 81%). Spermiogram and cryopreservation were performed in 29 (54.7%) of 53 patients preoperatively. The mean sperm concentration before orchiectomy was 24.21×106 /mL and group A sperm motility 0.79%, group B sperm motility 39.10%, group C sperm motility 9.83%, and group D sperm motility 22.69% in testicular tumors. CONCLUSION: Spermatogenesis adversely affected before the treatment due to local and systemic effects of testicular cancer. Fertility expectations can be increased in the subsequent years by semen analysis and referral to cryopreservation.
Asunto(s)
Neoplasias Testiculares , Adulto , Humanos , Masculino , Persona de Mediana Edad , Orquiectomía , Estudios Retrospectivos , Análisis de Semen , Recuento de Espermatozoides , Motilidad Espermática , Neoplasias Testiculares/cirugía , Adulto JovenRESUMEN
SUMMARY OBJECTIVE: The aim of this study was to analyze the results of microsurgical testicular sperm extraction (micro-TESE) and investigate the potential factors that may affect the successful sperm retrieval and timing of micro-TESE. METHODS: A total of 56 patients with nonobstructive azoospermia (NOA) who underwent micro-TESE procedure between January 2017 and December 2019 were retrospectively analyzed. The patient age, marriage duration, infertility duration, smoking, chronic illness, varicocele status, previous scrotal surgeries, and the presence of genetic disease were noted by an urologist for all patients. RESULTS: The mean age of patients was 33.28±4.4 (22-44) years. Our total sperm-retrieval rate was 55.4% (n:31). Sixteen (28.6%) pregnancies were achieved and 15 (26.8%) healthy live births could be managed. Only the marriage duration (p=0.016) and infertility duration (p=0.015) were detected to be the significant factors to manage successful sperm retrieval. Men with NOA younger than 35.2 years and having a female partner younger than 36.9 years seemed to have the best chance to have a living healthy baby. CONCLUSIONS: The fertility decreased by both male and female age and for men with NOA. The early visit to doctor seemed to have positive effect.
Asunto(s)
Humanos , Masculino , Femenino , Embarazo , Niño , Adulto , Azoospermia , Espermatozoides , Testículo , Estudios Retrospectivos , Recuperación de la EspermaRESUMEN
SUMMARY OBJECTIVE: Testicular tumor constitutes 1% of male neoplasms. Infertility can be determined in patients with testicular tumors before orchiectomy due to the deterioration of spermatogenesis. The aim of this study was to show the clinical, radiological, and pathological characteristics and spermiogram results of patients with testicular tumor and their relationship with each other. METHODS: The data of patients who underwent orchiectomy due to testicular tumor between 2016 and 2019 were reviewed retrospectively. These data included sociodemographic data of the patients, pretreatment spermiogram characteristics, level of serum tumor markers, characteristics of the ultrasonography, type of orchiectomy, and histopathological examination. RESULTS: This study included 53 male patients, with a mean age of 33.51±12.86 years. The mean levels of all tumor markers were above the reference levels. The mean tumor size was 34.68±23.32 mm. Multiple localizations and microlithiasis were detected in 11.3 and 13.2% of the tumors, respectively. The most common masses were hypoechoic (n=37; 69.8%) and hypervascular (n=47; 81%). Spermiogram and cryopreservation were performed in 29 (54.7%) of 53 patients preoperatively. The mean sperm concentration before orchiectomy was 24.21×106 /mL and group A sperm motility 0.79%, group B sperm motility 39.10%, group C sperm motility 9.83%, and group D sperm motility 22.69% in testicular tumors. CONCLUSION: Spermatogenesis adversely affected before the treatment due to local and systemic effects of testicular cancer. Fertility expectations can be increased in the subsequent years by semen analysis and referral to cryopreservation.
Asunto(s)
Humanos , Masculino , Adulto , Adulto Joven , Neoplasias Testiculares/cirugía , Recuento de Espermatozoides , Motilidad Espermática , Orquiectomía , Estudios Retrospectivos , Análisis de Semen , Persona de Mediana EdadRESUMEN
The objective of this study was to compare the rates of clinical pregnancy after the transfer of vitrified and thawed human embryos on days 3, 4 and 5 of embryonic development. In this retrospective study, the results of 148 embryo transfer cycles, using embryos frozen and thawed over the 3-year period between January 2016 and December 2018 at the Gülhane Training and Research Hospital Department of Gynecology and Obsterics Reproductive Medical Center of the University of Health Sciences, Ankara, Turkey were examined. Following embryo transfer - including 29 dissolved embryos frozen on day 3, 80 frozen on day 4, and 39 frozen on day 5 - results were examined in terms of clinical pregnancy rates. In this study, across all three groups, no significant differences were observed in terms of patient age, the number of oocytes collected, infertility reasons, the number of embryos dissolved, transfer day, or the number of embryos transferred. According to the transfer day, the rates of clinical pregnancy and ongoing pregnancy were significantly higher for embryos frozen on day 4 and transferred on day 5. Significantly higher rates of pregnancy and live birth were determined during in vitro fertilization (IVF) treatment with the freezing of human embryos on day 4 and the transfer of those embryos on day 5.
Asunto(s)
Criopreservación/métodos , Transferencia de Embrión/métodos , Embrión de Mamíferos/embriología , Fertilización In Vitro/métodos , Vitrificación , Adulto , Tasa de Natalidad , Blastocisto/citología , Técnicas de Cultivo de Embriones/métodos , Embrión de Mamíferos/citología , Femenino , Humanos , Infertilidad/terapia , Mórula/citología , Oocitos/citología , Embarazo , Índice de Embarazo , Estudios RetrospectivosRESUMEN
Objectives: The aim of this study was to evaluate the relationship between in vitro fertilization (IVF) cycle outcomes, serum and follicular fluid (FF) levels of leptin and ghrelin. Material and methods: Forty-four women who underwent intracytoplasmic sperm injection cycles (ICSI) were enrolled in the study. On the third day (D3) of the menstrual cycle, venous blood samples were drawn for serum measurements of leptin and ghrelin. The follicular fluid (FF) and the corresponding oocyte were obtained from a single dominant preovulatory follicle at the time of oocyte pick-up. The FF and D3 serum leptin and ghrelin concentrations were measured by enzyme-linked immunosorbent assay. The relationship between pregnancy rate and serum, follicular fluid levels of leptin and ghrelin were analyzed. Results: Of the 44 cases included, nineteen achieved clinical pregnancy (43.18%). Follicular fluid ghrelin levels were significantly lower in the pregnant group than non-pregnant group (p < 0.05) With respect to FF leptin, there was no statistically significant differences between the pregnant and non-pregnant women (p > 0.05). There was no statistically significant difference in D3 serum ghrelin between pregnant and non-pregnant groups (p > 0.05). However, D3 serum leptin levels were significantly lower in pregnant women than non-pregnant women (p < 0.05). Conclusions: Lower ghrelin levels in the follicular fluid were associated with higher pregnancy rates. Also, D3 serum leptin levels were inversely correlated with clinical pregnancy rates. These findings support the potential role of these molecules on IVF outcomes.
Asunto(s)
Fertilización In Vitro , Líquido Folicular/metabolismo , Ghrelina/metabolismo , Leptina/metabolismo , Índice de Embarazo , Adulto , Femenino , Humanos , Embarazo , Inyecciones de Esperma IntracitoplasmáticasRESUMEN
The aim of this study was to determine the morphological characteristics of the older reproductive aged women's oocytes and to reveal the influence of these characteristics on intra-cytoplasmic sperm injection (ICSI) outcomes. The oocytes of women older than 35 years of age were evaluated retrospectively. Non-invasive polarization microscopy (PolScope) examinations of mature oocytes were performed by measurement of meiotic spindles' length, area and retardance and zona pellucida thickness and retardance. Fertilization and conception competence and the correlation with the birefringent structures were assessed. Two hundred and thirteen mature oocytes from 54 women were evaluated with a PolScope. Length of the meiotic spindle was shown to be related to fertilization success of women with advanced maternal age. In conclusion, the PolScope is a useful device used to identify the oocyte quality. Quantitative measurements of meiotic spindle parameters may be valuable for the selection of high-quality oocytes that have the potential for embryo development in the in vitro fertilization (IVF) laboratory of women older than 35 years of age who are mostly poor responders.
Asunto(s)
Edad Materna , Oocitos/fisiología , Oocitos/ultraestructura , Inyecciones de Esperma Intracitoplasmáticas , Adulto , Femenino , Humanos , Masculino , Meiosis , Persona de Mediana Edad , Inducción de la Ovulación , Embarazo , Índice de Embarazo , Estudios Retrospectivos , Huso Acromático/ultraestructura , Resultado del Tratamiento , Zona Pelúcida/ultraestructuraRESUMEN
The aim of this case series was to describe our experience with random-start controlled ovarian hyperstimulation (RS-COH) with the use of letrozole for fertility preservation. GnRH antagonist and letrozole cycles were started in three patients with a diagnosis of cancer and had a limited time window for fertility preservation for COH before initiating cancer therapy. Cycles were started in the late follicular or luteal phase, and the duration of COH ranged between 7-8 days. A total of 4-14 oocytes were retrieved, the peak E2 levels were 252-354 pg/ml and the saved time for start of the cancer treatment were 16-26 days for each patient. In conclusion, RS-COH with letrozole cycle is a reasonable option for fertility preservation in cancer patients for whom the treatment window may be narrow. Also, the use of a letrozole for COH may decrease the potential risk of ovarian hyperstimulation syndrome.
Asunto(s)
Inhibidores de la Aromatasa/uso terapéutico , Preservación de la Fertilidad/métodos , Nitrilos/uso terapéutico , Recuperación del Oocito , Inducción de la Ovulación/métodos , Triazoles/uso terapéutico , Neoplasias de la Mama , Carcinoma Ductal de Mama , Femenino , Humanos , Letrozol , Linfoma no Hodgkin , Neoplasias OváricasRESUMEN
OBJECTIVE: To present our in vitro fertilization outcomes after implementation of the Turkish government policy limiting the number of transferred embryos to one, in women under the age of 35, and two, in women over age 35; and to demonstrate the feasibility of this policy. STUDY DESIGN: We retrospectively reviewed the records of 423 patients who underwent ovarian stimulation, oocyte pick-up, intracytoplasmic sperm injection and embryo transfer due to primary or secondary infertility over a 22-month time interval. Clinical pregnancy was defined as a fetal heartbeat in the seventh gestational week. Embryo transfers were carried out on day 3 or 5. Descriptive statistics are given as the number of subjects and percentages. RESULTS: A total of 353 embryo transfers were performed: 261 (73.9%) were single-embryo transfer (244 (69.1%) elective and 17 (4.8%) non-elective) and 92 (26.1%) were double-embryo transfer. Of the 244 elective single-embryo transfers, 6.6% (n=16) were performed using frozen-thawed embryos. The average patient age was 29.6±4.5 years in the single-embryo group and 36.5±2.4 years in the double-embryo group. The cumulative pregnancy rates per oocyte pick-up were similar in both groups: 41% (n=107) in the single-embryo group and 43.4% (n=40) in the double-embryo group (p=0.678). The cumulative live birth rate of the single-embryo group (32.1%) was not statistically different from the double-embryo group (35.8%) (p=0.518). The twin pregnancy rate after single-embro transfer was significantly lower than with double-embryo transfer (2.8% (n=3) vs. 32.5% (n=13); p<0.001) and 62.5% of the twin pregnancies occurred in women 35 years or older who underwent double-embryo transfer. No significant difference in the spontaneous abortion rates was recorded between the single- and double-embryo transfer groups (16 (6.1%) vs. 6 (6.5%); p=0.894). CONCLUSION: Single-embryo transfer results in a pregnancy rate comparable to double-embryo transfer, with a significantly reduced multiple pregnancy rate. Double-embryo transfer in patients over age 35 should be reconsidered because of the resulting high rate of multiple pregnancy.
Asunto(s)
Índice de Embarazo , Embarazo Gemelar/estadística & datos numéricos , Transferencia de un Solo Embrión/estadística & datos numéricos , Adulto , Femenino , Humanos , Embarazo , Resultado del Embarazo , Estudios RetrospectivosRESUMEN
OBJECTIVE: The aim of this study was to determine whether quantitative PolScope characteristics of meiotic spindle and zona pellucida could be used as a non-invasive marker to predict implantation success in elective single embryo transfer cycles. METHODS: Quantitative birefringence parameters; including mean retardance, area, length and polar body deviation angle of meiotic spindle and mean retardance and width of inner zona pellucida belonging to 53 transfer oocytes from elective single embryo transfer cycles were retrospectively analyzed. The relevant PolScope features were compared between 20 conception and 33 non-conception cycles. RESULTS: Meiotic spindle mean retardance, area, length and inner zona pellucida mean retardance and width did not reveal a statistically significant difference between transfer oocytes from conception and non-conception cycles. Deviation angle of the polar bodies was also comparable between the groups. Spindle and inner zona PolScope characteristics of transfer oocytes were not correlated with the maternal age. CONCLUSION: Quantitative PolScope features of meiotic spindle and inner zona pellucida can not be used as a non-invasive marker to predict assisted reproductive technology success in elective single embryo transfer cycles.
Asunto(s)
Birrefringencia , Implantación del Embrión/fisiología , Transferencia de un Solo Embrión/métodos , Adulto , Femenino , Humanos , Estudios Retrospectivos , Huso Acromático , Zona PelúcidaRESUMEN
PURPOSE: This study aims to determine whether a low dose of the gonadotropin releasing hormone antagonist, cetrorelix, prevents a premature luteinizing hormone (LH) surge and affects in vitro fertilization (IVF) outcomes compared to the standard dose of 0.25 mg/day. METHODS: In this study, 45 IVF/intracytoplasmic sperm injection patients were stimulated with recombinant follicle stimulation hormone from day 2 of the cycle. Cetrorelix was injected daily from day 6 of gonadotropin administration. Twenty-two patients received cetrorelix at a dose of 0.25 mg/day, whereas 23 participants received half dose. RESULTS: The mean consumption of gonadotropins was significantly higher in patients receiving 0.25 mg/day of cetrorelix (2,213 vs. 1,350 U; p = 0.046). The clinical pregnancy rates were similar in both groups (31.8 vs. 47.8 %; p = 0.273). Premature LH surge was detected in 9.1 % of the patients receiving cetrorelix 0.25 mg/day and in 13 % of the patients receiving cetrorelix 0.125 mg/day (p > 0.05). The difference between two groups was not statistically significant (p > 0.05). CONCLUSIONS: Our results suggest that there is no difference between a cetrorelix dose of 0.125 or 0.25 mg/day in preventing premature LH rise during ovarian stimulation for IVF.
Asunto(s)
Fertilización In Vitro , Hormona Liberadora de Gonadotropina/análogos & derivados , Hormona Liberadora de Gonadotropina/antagonistas & inhibidores , Hormona Luteinizante/metabolismo , Inducción de la Ovulación , Adulto , Femenino , Hormona Liberadora de Gonadotropina/administración & dosificación , Humanos , Masculino , Embarazo , Índice de Embarazo , Estudios RetrospectivosRESUMEN
BACKGROUND: Cisplatin, an effective antineoplastic agent, damages normal cells in a manner related to chemotherapy. Acetyl L-carnitine protects cells against mitochondrial and nuclear damage induced by chemotherapy. AIMS: Animal experiment. STUDY DESIGN: The aim of this study was to examine the protective effects of acetyl L-carnitine on cisplatin-induced gonadotoxicity in testicular structures. Twenty-four male Wistar albino rats were divided into four Groups (n=6): Group 1 (control) was administered saline; Group 2 was administered acetyl L-carnitine; Group 3 was administered cisplatin; and Group 4 was pre-treated with acetyl L-carnitine before cisplatin administration. METHODS: After 72hr of treatment with cisplatin, the rats were sacrificed, and the testicular tissues were removed. Morphometric, histomorphologic and immunohistochemical analyses were conducted. RESULTS: At the end of the experiment, Group 3 was characterised by statistically significant weight loss, a degenerative appearance of the seminiferous tubules in the peripheral region, separation of spermatogenic cell series from the tubular wall, cellular debris in the lumen and central interstitial oedema. Sperm morphology appeared to be abnormal. Tubular diameter and wall thickness decreased, and the number of TUNEL- and active caspase-positive cells increased compared with the other Groups. The histological findings in Group 4 were better than those in Group 3. CONCLUSION: It was concluded that the prophylactic use of acetyl L-carnitine protects against cisplatin-induced testicular tissue damage.
RESUMEN
OBJECTIVE: To examine immunohistochemically the distribution of cell-cycle regulators p53 and proliferating cell nuclear antigen (PCNA), which are in close cooperation with each other in first trimester and term human placentas. STUDY DESIGN: Human first trimester placental tissue was obtained by curettage from legal abortions obtained for social reasons, and human term placental tissue was obtained. Neither the interrupted pregnancy nor the obstetrical history showed any abnormalities. A total of 12 tissue samples were analyzed: n = 6 (6-12 weeks), n = 6 (38-40 weeks). Tissues were evaluated by immunohistochemical study. RESULTS: In the first trimester p53 expression was at a normal level, and p53 immunolabeling was present in syncytiotrophoblast and extravillous trophoblast cells found in the cell column. Very few villous stroma cells were p53 positive. PCNA was present intensely in the cytotrophoblast and in extravillous trophoblast found in the cell column. In term placentas p53 immunolabeling was very low and was expressed in only a limited number of syncytiotrophoblast cells. PCNA was at a normal level in villous and extravillous tissue. PCNA was decreased when compared with the first trimester and was present in syncytiotrophoblast and cytotrophoblast cells. A small number of endothelial cells and villous stromal cells were positive. CONCLUSION: We think that the immunohistochemical distribution of PCNA and p53 are strongly coordinated with each other in villous and extravillous cells in human placenta. This finding may be useful in the explanation of placental pathologies.
Asunto(s)
Placenta/metabolismo , Antígeno Nuclear de Célula en Proliferación/biosíntesis , Proteína p53 Supresora de Tumor/biosíntesis , Femenino , Humanos , Inmunohistoquímica , Embarazo , Primer Trimestre del Embarazo , Antígeno Nuclear de Célula en Proliferación/análisis , Proteína p53 Supresora de Tumor/análisisRESUMEN
BACKGROUND/AIMS: Since the assessments of the morphology of oocytes, zygotes and/or embryos are of crucial importance to select the best candidate for pregnancy, many morphological evaluation tools have been proposed. Although embryo scoring, particularly cleavage and blastocyst stages, is more convincing due to successful results, zygote scoring still have a bias as different outcomes. In the current study, we designed a prospective study to test the reliability of zygote scoring by focusing on zygote evaluation techniques and its relation with embryo development and embryo selection for transfer. METHODS: A total of 1215 mature oocytes from 139 couples were evaluated for the study. RESULTS: There is no correlation between published zygote scoring technique and embryo development. CONCLUSIONS: We conclude that the inconsistency of data obtained from zygote scoring might be caused by the static nature of pronuclear stage embryos and thus pronuclear scoring seems to be unreliable evaluation technique for embryo selection.
Asunto(s)
Núcleo Celular/ultraestructura , Infertilidad/fisiopatología , Infertilidad/terapia , Inyecciones de Esperma Intracitoplasmáticas , Cigoto/fisiología , Cigoto/ultraestructura , Adulto , Blastocisto/fisiología , Blastocisto/ultraestructura , Ectogénesis , Transferencia de Embrión , Femenino , Fertilización In Vitro , Humanos , Masculino , Estudios Prospectivos , Reproducibilidad de los ResultadosRESUMEN
Meiotic spindle analysis with a non-invasive technique, the PolScope, is used to protect the meiotic spindle from damage during microinjection. To evaluate the predictive feature of PolScope, we have designed a retrospective study to analyse the correlation between the meiotic spindle visualisation with regard to spindle location and outcomes of assisted reproductive technologies (ART), including patient age, previous cycles, the number of the collected oocytes, fertilisation rates (FR), pronuclear scoring (PNS) and embryo scoring of the days from two to five. All of the data belonging to 1496 oocytes from 190 patients were statistically analysed. We found that the oocytes having PolScope visualised spindle have higher FR, and also observed that when the spindle located at 0°-30° according to the first polar body, gave the highest FR. PNS gave higher scores in the spindle visualised group, but spindle angle did not affect PNS outcomes. Although a correlation was found between spindle visualisation and developed embryo qualities, particularly at day 2 and 3, spindle angles did not affect embryo quality. We conclude that PolScope microscopy has an efficiency to estimate FR, and cleavage stage embryo development.
Asunto(s)
Infertilidad Femenina/patología , Infertilidad Femenina/fisiopatología , Inyecciones de Esperma Intracitoplasmáticas , Huso Acromático/ultraestructura , Cigoto/fisiología , Cigoto/ultraestructura , Adulto , Factores de Edad , Blastocisto/fisiología , Blastocisto/ultraestructura , Núcleo Celular/ultraestructura , Ectogénesis , Transferencia de Embrión , Femenino , Fertilización In Vitro , Humanos , Infertilidad Femenina/terapia , Microinyecciones/efectos adversos , Oocitos/fisiología , Oocitos/ultraestructura , Inducción de la Ovulación , Cuerpos Polares/ultraestructura , Estudios Retrospectivos , Adulto JovenRESUMEN
Palmar plates are being used as a source of graft in radial or ulnar collateral ligament reconstruction, pulley reconstruction, and volar plate arthroplasty. The purpose of this study is to determine morphometric and major histological differences of palmar plates in metacarpophalangeal (MCP) and proximal interphalangeal (PIP) joints among fingers, and supply sufficient data which would be useful in reconstruction procedures. Ninety-six MCP and 96 PIP palmar plates of 12 well-preserved formalin-fixed cadavers were measured focusing on their length, width, central thickness, and lateral thickness and statistically analyzed using ANOVA. Randomized three male and three female cadavers' specimens were examined histologically after staining with Masson's trichrome. For central thickness of the PIP joint level, there was significant difference among fingers, caused by the middle and little fingers. For lateral thickness of the PIP joint level, there was significant difference which was originated from little fingers. MCP palmar plates were significantly thicker than PIP joint levels for most of the fingers. There were thicker and denser collagen bands in MCP than PIP palmar plates. The relation of size-related parameters was not close with the thickness parameters. The predicted sizes and thicknesses of palmar plates vary according to fingers. The data collected for each finger in this study should be used as a guide in reconstructive procedures that use palmar plates as source of graft.
Asunto(s)
Articulaciones de los Dedos/anatomía & histología , Huesos de la Mano/anatomía & histología , Articulación Metacarpofalángica/anatomía & histología , Adulto , Anciano , Fenómenos Biomecánicos , Ligamentos Colaterales/anatomía & histología , Disección , Femenino , Humanos , Masculino , Persona de Mediana EdadRESUMEN
OBJECTIVE: To determine the approval levels of infertile Turkish women concerning gamete donation and gestational surrogacy. DESIGN: Opinion survey. SETTING: Assisted reproductive treatment center at Gulhane Military Medical Academy. PATIENT(S): 368 women who had applied for infertility treatment. INTERVENTION(S): The patients were asked to answer a questionnaire that included questions about the patient's sociodemographic status, previous medical history with infertility treatment, and opinions on gamete donation and gestational surrogacy. MAIN OUTCOME MEASURE(S): Opinions of patients concerning gamete donation and gestational surrogacy. RESULT(S): Our data in this first study on infertile Turkish women show that some patients approve of gamete donation (23.3% for accepting oocytes and 3.4% for accepting sperm) and gestational surrogacy (15.1%). CONCLUSION(S): Donation and surrogacy are alternate treatments for the serious condition called infertility. As there are patients who would like to use these treatments, each of these patients should have the right to try any of them.