Genomic markers of ovarian reserve.
Ontology highlight
ABSTRACT:
SUBMITTER: Wood MA
PROVIDER: S-EPMC4043392 | biostudies-literature | 2013 Nov
REPOSITORIES: biostudies-literature
Publications
Genomic markers of ovarian reserve.
Wood Michelle A MA Rajkovic Aleksandar A
Seminars in reproductive medicine 20131007 6
Ovarian reserve and its utilization, over a reproductive life span, are determined by genetic, epigenetic, and environmental factors. The establishment of the primordial follicle pool and the rate of primordial follicle activation have been under intense study to determine genetic factors that affect reproductive lifespan. Much has been learned from transgenic animal models about the developmental origins of the primordial follicle pool and mechanisms that lead to primordial follicle activation, ...[more]
Similar Datasets
Project description:BackgroundReproductive-aged women frequently receive both chemotherapy and endocrine therapy as part of their treatment regimen for early stage hormone receptor-positive breast cancer. Chemotherapy results in transient or permanent ovarian failure in the majority of women. The difficulty in determining which patients will recover ovarian function has implications for adjuvant endocrine therapy decision making. We hypothesized that pretreatment serum anti-Müllerian hormone (AMH) and inhibin B concentrations would predict for ovarian function following chemotherapy.MethodsPre- and perimenopausal women aged 25-50 years with newly diagnosed breast cancer were enrolled. Subjects underwent phlebotomy for assessment of serum AMH, inhibin B, follicle-stimulating hormone, and estradiol prior to chemotherapy and 1 month and 1 year following completion of treatment. Associations among hormone concentrations, clinical factors, and biochemically assessed ovarian function were assessed.ResultsTwenty-seven subjects were evaluable for the primary endpoint. Median age was 41. Twenty subjects (74.1%) experienced recovery of ovarian function within 18 months. Of the 26 evaluable subjects assessed prior to chemotherapy, 19 (73.1%) had detectable serum concentrations of AMH. The positive predictive value of a detectable baseline serum AMH concentration for recovery of ovarian function was 94.7%, and the negative predictive value was 85.7%. On univariate analysis, younger age and detectable serum AMH concentration at chemotherapy initiation were predictive of increased likelihood of recovery of ovarian function.ConclusionPrechemotherapy assessment of serum AMH may be useful for predicting postchemotherapy ovarian function. This finding has implications for decision making about adjuvant endocrine therapy in premenopausal women treated with chemotherapy.
| S-EPMC3903057 | biostudies-literature
Project description:ObjectiveTo determine the association between ovarian reserve biomarkers and future fertility among late reproductive-age women.DesignCohort study of participants enrolled in Time to Conceive (TTC), a time-to-pregnancy cohort study of the ovarian reserve biomarkers.SettingCommunity.Patient(s)Women aged 30-44 years without a history of infertility who provided a blood sample at enrollment in TTC and who agreed to future follow-up.Intervention(s)Not applicable.Main outcome measure(s)The primary outcomes were probability of achieving a live birth >3 years after enrollment in TTC, diagnosis of infertility at any time, and time-to-pregnancy in future pregnancy attempts.Result(s)Women with diminished ovarian reserve, defined as those with an antimüllerian hormone (AMH) level <0.7 ng/mL or follicle-stimulating hormone (FSH) level ≥10 mIU/mL, did not have low risk of future live birth (relative risk [RR], 1.32; 95% confidence interval [CI], 0.95-1.83 and RR, 1.28; 95% CI, 0.97-1.70, respectively) compared with women with normal ovarian reserve after adjusting for age at blood draw, race, obesity, use of hormonal contraception, and year of enrollment in original study. Among women in the cohort that attempted to conceive, there was not a significant association between diminished ovarian reserve, as measured by AMH or FSH, and risk of future infertility (RR, 0.65; 95% CI, 0.21-2.07 and RR,1.69; 95% CI, 0.86-3.31, respectively). Similarly, there was no association between AMH and FSH levels and future fecundability (fecundability ratio, 0.97; 95% CI, 0.59, 1.60; and fecundability ration, 0.86; 95% CI, 0.55-1.36, respectively).ConclusionDiminished ovarian reserve is not associated with reduced future reproductive capacity. Given the lack of association, women should be cautioned regarding use biomarkers of ovarian reserve as predictors of their future reproductive capacity.
| S-EPMC10074834 | biostudies-literature
Project description:Introduction In the literature, conflicting results from studies examining the relationship between obesity and ovarian reserve have been reported. The purpose of the study is to investigate whether obesity adversely affects serum concentrations of ovarian reserve markers in infertile women with different ovarian reserve status. Materials and Methods A total of 402 women were assigned to three groups according to body mass index (BMI; <?25?kg/m 2 : normal, n?=?198; 25.0?–?29.9?kg/m 2 : overweight, n?=?126; and ??30?kg/m 2 : obese, n?=?78). The women were also divided into two groups according to waist circumference (WC; <?80?cm: normal, n?=?103; and ??80?cm: obese, n?=?299). Participants were also categorized into three types of ovarian reserve patterns: normal (n?=?146), high (n?=?112), and poor ovarian reserve (n?=?144). The serum anti-Mullerian hormone (AMH), estradiol (E2), and follicle-stimulating hormone (FSH) levels were assayed and compared in all groups. Results There were no significant differences in BMI and WC in the three ovarian reserve groups. There were significant differences between all ovarian reserve groups for AMH, E2, and FSH (p?<?0.001 for all). The comparisons of ovarian reserve parameters (AMH, E2, and FSH) and obesity parameters (BMI and WC) revealed no significant differences in women with all ovarian reserve patterns. Conclusion The parameters of ovarian reserve do not seem to be affected by increased BMI and WC. Thus, AMH may be considered as a reliable marker of ovarian reserve.
| S-EPMC6336460 | biostudies-other
Project description:ObjectiveTo characterize the ovarian reserve indicators for premature ovarian insufficiency (POI) at different disease stages and with various etiologies.MethodsAccording to different FSH levels and menstrual conditions, patients with normal ovarian reserve (NOR with 5 IU/L<FSH<10 IU/L, n=987), precursor stage of POI (pre-POI with 10 IU/L<FSH ≤ 25 IU/L, n=410), early POI (25 IU/L<FSH ≤ 40 IU/L n=147), and premature ovarian failure (POF with FSH>40 IU/L, n=454) were retrospectively screened and their records were abstracted from Reproductive Hospital Affiliated to Shandong University between 2014 and 2019. Based on the known etiologies, POI patients were subdivided into genetic, iatrogenic, autoimmune and idiopathic subsets according to the known etiologies. The phenotypic features were compared within different subgroups, and the predictive value of ovarian reserve markers was analyzed.ResultsThe ovarian reserve indicators consecutively deteriorated with the progress of ovarian insufficiency, indicated as an increase of FSH and LH but decrease of AMH, inhibin B, AFC, E2 and T (P<0.01). Most of them changed significantly from NOR to pre-POI while remained relatively stable at a low level or even undetectable at early POI and POF stage. AMH showed the highest predictive value for pre-POI (AUC 0.932, 95% CI 0.918-0.945) and POI (AUC 0.944, 95% CI 0.933-0.954), and the combination of AMH and AFC was highly promising for early prediction. Additionally, significant differences existed in AMH, inhibin B and AFC among women with different etiologies of POI (P<0.05), and the genetic POI presented the worst hormone status.ConclusionsOur study indicated a high heterogeneity of POI in both endocrine hormones and etiological phenotypes. The quantitative changes and cutoff values of AMH and AFC could provide new insights in the prediction and early diagnosis of POI.
| S-EPMC8015703 | biostudies-literature
Project description:Association between phenotype and follicle-stimulating hormone (FSH) receptor and FSH beta chain genotype was evaluated in women with ovarian dysfunction. FSH receptor gene single nucleotide polymorphisms (SNPs) were analyzed by restricted fragment length polymorphism (RFLP) technique. Three groups were analyzed: two groups formed of poor responders (women with ovarian dysfunctions caused by endometriosis and patients who underwent ovarian stimulation protocols) and a third good responders group (normal-ovulatory women who gave birth to naturally conceived children). A higher average level of basal FSH values were found in mutants in the A919G/Ala307Thr/rs6165 or A2039G/Asn680Ser/rs6166 tests (7.16±1.09; P=0.659). Anti-mullerian hormone (AMH) below 1.2 ng/ml was associated with a higher frequency of mutations: 33.3% A919G/Ala307Thr and A2039G/Asn680Ser (P=0.137) and also in 66.6% FSH receptor less frequent polymorphism (c.-29G>A) rs 1394205 (P=0.522). The age, day 3 FSH, and AMH levels are widely used to investigate female infertility. However, we have not yet found the ideal biomarker to determine the best outcome and treatment plan for our patients. We cconsider that genetic markers will become the future in the personalization of controlled ovarian stimulation treatment in the upcoming period.
| S-EPMC7588789 | biostudies-literature
Project description:To explore whether work schedules and physically demanding work were associated with markers of ovarian reserve and response.This analysis included women (n=473 and n=313 for ovarian reserve and ovarian response analysis, respectively) enrolled in a prospective cohort study of couples presenting to an academic fertility centre (2004-2015). Information on occupational factors was collected on a take-home questionnaire, and reproductive outcomes were abstracted from electronic medical records. Generalised linear models and generalised linear mixed models were used to evaluate the associations.Women who reported lifting or moving heavy objects at work had 1.0 fewer total oocytes (p=0.08), 1.4 fewer mature oocytes (p=0.007) and 0.7 fewer antral follicles (p=0.06) compared with women who reported never lifting or moving heavy objects at work. The inverse association between heavy lifting and oocyte yield was stronger in women >37?years and with a Body Mass Index ?25?kg/m2. Women who worked evening/night/rotating shifts had 2.3 (p<0.001) fewer mature oocytes, on average, compared with women who worked day-only shifts. None of the occupational exposures were associated with day 3 follicle-stimulating hormone or peak oestradiol levels.Women working non-daytime shifts and those with physically demanding jobs had fewer mature oocytes retrieved after controlled ovarian hyperstimulation. Our results provide insight into possible mechanisms linking these occupational exposures with decreased fecundity.
| S-EPMC5438763 | biostudies-literature
Project description:IntroductionA reduction in anti-müllerian hormone (AMH) levels at short-term after bariatric surgery (BS) has been previously described. However, an assessment of ovarian reserve at longer-follow up, and a comprehensive evaluation of the potentially implicated factors has not been reported.DesignProspective cohort study.Materials and methodsTwenty women aged 18-40 years with BMI 43.95 kg/m2 undergoing BS were studied at baseline (BS0), and at 1 month (BS1), 4 months (BS2), 12 months (BS3), and 24-36 months (BS4) after the surgery. Anthropometrics, reproductive hormones (AMH, FSH, LH, estradiol, testosterone, SHBG, androstenedione), metabolic parameters (adiponectin, leptin, ghrelin, insulin), and nutritional blood parameters (markers of nutritional status, vitamins, and minerals) were obtained at each study time point. Antral follicular count (AFC) was assessed by ultrasonography at BS0, BS3, and BS4. Mixed models were used for analysis of longitudinal data.ResultsThe mean AMH level was 3.88 ng/mL at BS0, decreased at BS3 (mean= 2.59 ng/mL; p=0.009), and remained stable between BS3 and BS4 (mean= 2.96 ng/mL; p=0.409). We also observed a non-significant decrease in AFC at BS3 (mean=26.14 at BS0, mean 16.81 at BS3; p=0.088) that remained stable at BS4 (mean= 17.86; p=0.731). Mixed models analysis showed: (a) a decrease in 10 kg of body weight was associated with an average decrease of 0.357 ng/mL in AMH (p=0.014); (b) a decrease in 1 BMI point was associated with an average decrease of 0.109 ng/mL in AMH (p=0.005); (c) an increase in 1 µg/mL of adiponectin was associated with an average decrease of 0.091 ng/ml in AMH (p=0.041) Significant positive correlations were found between the AMH levels after BS and plasma concentrations of testosterone, free androgen index, insulin and HOMA index. No significant correlations were detected between AMH levels and nutritional parameters.ConclusionsOur results were in line with previous observations, showing that AMH levels decreased significantly at 12 months after bariatric surgery, in parallel with a non-significant reduction in AFC. Both ovarian reserve markers showed a later stabilization up to the end of the study. Of note, postoperative AMH levels were positively correlated with key androgen and insulin resistance-related parameters.
| S-EPMC10978777 | biostudies-literature
Project description:Background The role of excess androgen in ovarian reserve remains unclear in patients with polycystic ovary syndrome (PCOS). Our study highlights the associations of serum androgen levels and ovarian reserve markers in PCOS and non-PCOS women. Methods Totally 584 menstrual abnormalities women of 20-45 years were retrospectively evaluated at the Beijing Obstetrics and Gynecology Hospital between January 2021 to October 2021. The enrolled patients were classified into two groups: the PCOS group (n=288) and the non-PCOS group (n=296) based on the Rotterdam consensus for PCOS diagnosis. The serum androgens, including testosterone (T), free testosterone (FT, calculated), bioavailable testosterone (Bio-T, calculated), androstenedione (A2), dihydrotestosterone (DHT), dehydroepiandrosterone (DHEA), and dehydroepiandrosterone sulfate (DHEAS) were assessed with an in-house developed liquid chromatography tandem mass spectrometry (LC-MS/MS) method. The associations between the serum androgens and the hormone markers commonly used for evaluating ovarian reserve function, such as anti-mullerian hormone (AMH) and the ratio of luteinizing hormone (LH)/follicle stimulating hormone (FSH) were explored. Results The serum T, FT, Bio-T, A2, DHT, DHEA, DHEAS, AMH and LH/FSH of the PCOS group were 51.7 ± 23.2 ng/dL/mL, 8.5 ± 5.0 pg/mL, 210.1 ± 127.7 pg/mL, 1.9 ± 0.8 ng/mL, 0.2 ± 0.1 ng/mL, 6.4 ± 4.2 ng/mL, 2431.0 ± 1030.7 ng/mL, 6.7 ± 3.8 ng/mL, and 1.8 ± 1.4 respectively, which were significantly higher than those in the non-PCOS group (p<0.05). In the group of PCOS patients, T and A2 levels were positively associated with AMH in both multivariate linear regression analysis and Pearson’s correlation analysis. Similar but weaker associations were observed in the non-PCOS patients. In the PCOS patients with hyperandrogenemia (HA), the AMH level was significantly higher in the subjects with T increased than in the subjects with non-T androgen(s) increased (A2, DHT, DHEA or DHEAS). Conclusions The serum androgen levels are positively associated with ovarian reserve markers in both of the PCOS and the non-PCOS patients in our study. In the PCOS group, the highest AMH level was observed in the subjects with the T elevation subgroup, suggesting that T is more closely related with the increase of AMH when compared with other androgens investigated.
| S-EPMC9218193 | biostudies-literature
Project description:Primordial follicles or non-growing follicles (NGFs) are the functional unit of reproduction, each comprising a single germ cell surrounded by supporting somatic cells. NGFs constitute the ovarian reserve (OR), prerequisite for germ cell ovulation and the continuation of the species. The dynamics of the reserve is determined by the number of NGFs formed and their complex subsequent fates. During the reproductive lifespan, the OR progressively diminishes due to follicle atresia as well as recruitment, maturation, and ovulation. The depletion of the OR is the major determining driver of menopause, which ensues when the number of primordial follicles falls below a threshold of ?1,000. Therefore, genes and processes involved in follicle dynamics are particularly important to understand the process of menopause, both in the typical reproductive lifespan and in conditions like primary ovarian insufficiency, defined as menopause before age 40. Genes and their variants that affect the timing of menopause thereby provide candidates for diagnosis of and intervention in problems of reproductive lifespan. We review the current knowledge of processes and genes involved in the development of the OR and in the dynamics of ovarian follicles.
| S-EPMC4606124 | biostudies-literature
Project description:OBJECTIVE:Bilateral uterine artery ligation (UAL) is a fertility-preserving procedure used in women experiencing postpartum hemorrhage (PPH). However, the long-term effects of this procedure on ovarian function remain unclear. The aim of this study was to investigate whether bilateral UAL compromised ovarian reserve and ovarian blood supply. Methods:This prospective study included 49 women aged between 21 and 36 years who had undergone a cesarean section for obstetric indications. Of these, 25 underwent uterine bilateral UAL to control intractable atonic PPH. The control group consisted of 24 women who had not undergone bilateral UAL. Standard clinical parameters, the results of color Doppler screening, and ovarian reserve markers were assessed in all participants at 6 months after surgery. The clinical parameters included age, parity, cycle history, body mass index, and previous medication and/or surgery. Color Doppler screening findings included the pulsatility index (PI) and resistance index (RI) for both the uterine and ovarian arteries. The ovarian reserve markers included day 3 follicle-stimulating hormone (FSH) levels, antral follicle count, and anti-Müllerian hormone (AMH) levels. RESULTS:There were no significant differences in the ovarian reserve markers of day 3 FSH levels, antral follicle count, and AMH levels between the study and control groups (p>0.05 for all). In addition, no significant differences were observed in the PI and RI indices of the uterine and ovarian arteries (p>0.05 for all). CONCLUSION:In this study, we showed that bilateral UAL had no negative effects on ovarian reserve or ovarian blood supply, so this treatment should be used as a fertility preservation technique to avoid hysterectomy in patients experiencing PPH.
| S-EPMC6436468 | biostudies-literature