Age-specific anti-Müllerian Hormone Research Articles

P-622 Age-specific reference intervals for anti-müllerian hormone in Mexico: A population-based study. implications for Latin America

Abstract Study question To determine the age-specific normal range of antimullerian hormone (AMH) levels in a female Latin American population. Summary answer Age-related nomograms for general population for the 3rd-97th percentiles were produced. These nomograms could provide a reference guide for clinicians to consult women with infertility. What is known already The variation of AMH levels among different races and ethnicities has been well documented (Seifer et al., 2009). Despite the wide use of AMH measurements in clinical assessment of ovarian reserve, a population-based estimate for its reference range in Latin America is not available. Study design, size, duration A longitudinal, observational, retrospective, real-world study was carried out, including all AMH measurements performed from January 2017 to December 2018 at a large clinical laboratory network in the Mexico City area, encompassing 35 locations. A total of 6444 AMH measurements were included. Participants/materials, setting, methods AMH was assayed using either the cobas or ELISA methodologies. All AMH measurements from women 25-45 years were included. The Kolmogorov-Smirnov test was used to confirm that AMH levels between patients assayed with cobas were comparable to those assayed with ELISA at every age. Main results and the role of chance In total, 6444 measurements were identified and available for analysis. Age-related normograms for the 3rd, 10th, 25th, 50th, 75th, 90th, and 97th percentiles of AMH were produced. The overall rate of AMH decline accelerated after 40 years of age. In women 25-30 years, 11.4% (63/554) had an AMH <1.0ng/mL. In women 30-35 years, 18.6% (276/1484) had an AMH <1.0ng/mL. In women 35-40 yeras, 35.8% (830/2319) had an AMH <1.0ng/mL. In women 40-45 years, 58.0% (1120/1932) had an AMH <1.0ng/mL. Limitations, reasons for caution The lack of medical history for patients precluded identification and exclusión of patients with iatrogenically abnormal AMH levels (e.g. due to oophorectomy). Patients undergoing measurement of AMH were primarily referred through fertility clinics, limiting the potential for extrapolation to the general population. Wider implications of the findings The study reports age-specific AMH levels drawn from a large sample of women around Mexico City. The study includes the largest dataset to date. Latin American patients considering fertility preservation should be aware of the high prevalence of diminished ovarian reserve in this large cohort, including among women 35-39. Trial registration number Not Applicable

Age-related changes in serum anti-Müllerian hormone in women of reproductive age in Kenya

Background. Anti-Müllerian hormone (AMH) is produced by the granulosa cells of ovarian antral follicles and plays a role in therecruitment of dominant follicles during folliculogenesis. The serum level of AMH is proportional to the number of developing folliclesin the ovaries and reflects ovarian reserve. Nomograms of AMH variation with age exist from Caucasian populations, but there are none drawn from local African data.Objectives. To establish age-specific median serum AMH levels in an unselected East African population of women of reproductive age.Methods. We retrospectively analysed data on 1 718 women who underwent AMH testing using the Beckman Coulter AMH Gen IIenzyme-linked immunosorbent assay during the period 2015 - 2019 at Aga Khan University Hospital, Nairobi, Kenya. Age-specific median AMH levels were derived and presented in 5-year age bands. AMH levels were then log-transformed and, using linear regression in a natural spline function, presented on a scatter plot to demonstrate variation across reproductive age.Results. The median (interquartile range (IQR)) age of women who were tested for AMH was 38 (19 - 49) years. For the study population, the median (IQR) serum AMH level was 0.87 (0.01 - 17.10) ng/mL. The AMH concentration was inversely related to age, with a progressive decline whereby an increase of 1 year resulted in a corresponding decrease in AMH of 0.18 ng/mL. The proportion of women with decreased ovarian reserve increased exponentially with age from 14.9% in those aged 20 - 24 years to 48.7% at 35 - 39 years.Conclusion. From a large dataset of mainly black African women, this study confirms that serum AMH declines with advancing age,as reported elsewhere in Caucasian populations. There was, however, a higher than expected number of women with diminished ovarian reserve for age. Future studies prospectively exploring ovarian reserve in the general population could unravel underlying biological, reproductive and environmental factors that may influence AMH levels and reproductive capacity in this indigenous population.

Investigating the Clinical Utility of the Anti-Mullerian Hormone Testing for the Prediction of Age at Menopause and Assessment of Functional Ovarian Reserve: A Practical Approach and Recent Updates.

Low ovarian reserve is a serious condition, leading to sterility in up to 10% of women in their mid-thirties. According to current knowledge, serum anti-Müllerian hormone (AMH) levels for age are the best available marker for the screening the quantity of a woman’s functional ovarian reserve, better than age alone or other reproductive markers. This review summarizes recent findings, clinical utility and limitations in the application of serum AMH testing as an accurate marker for the screening of functional ovarian reserves and predicting age at menopause. AMH assessment hold promise in helping women make informed decisions about their future fertility and desired family size. However, screening of the functional ovarian reserve could be offered to all women at 26 years of age or older who seek to assess future fertility or in case of personal request, ovarian reserve screening may be considered beyond 30 years; however, it has never been advocated beyond 35 years, since it is not advisable to delay childbearing beyond this age. In this respect, an age-specific serum AMH levels lower than the 10th percentile may be used as a threshold for the identification of a low functional ovarian reserve in an individual woman. Its level should be interpreted with caution in the adolescent and young women aged below 25 years (since AMH levels peak at this age); recent users of hormonal contraceptives (since AMH levels transiently decrease until two months after discontinuation); and women with PCOS (which dramatically increases AMH levels). However, the ability of AMH levels to predict the time to menopause is promising but requires further investigation and routine AMH testing for the purposes of predicting the time to menopause is not recommended.

Age-specific serum anti-Mullerian hormone reference values for infertile Filipino women in a tertiary in vitro fertilization center in the Philippines

BACKGROUND: Anti-Mullerian hormone (AMH) levels have been used as an invaluable tool in reproductive medicine for over a decade, especially in predicting ovarian reserve and follicular response during in vitro fertilization (IVF) cycles. Age-specific reference values of AMH levels have been derived from mostly Western and few Asian population groups but none from the Philippines. In this study, we attempted to determine the first age-specific AMH reference values from infertile Filipino women to be able to provide local infertility centers a guide in treating Filipinos and those with similar racial and lifestyle characteristics. MATERIALS AND METHODS: This was a retrospective cross-sectional study that was conducted at the Center for Advanced Reproductive Medicine and Infertility at St. Luke's Medical Center Global City. Age, serum AMH levels, body mass index (BMI), and cause of infertility of Filipino women who underwent IVF from August 2015 to March 2020 were taken. AMH was assayed using the automated Access AMH Immunoassay (Beckman Coulter). RESULTS: A total of 1463 women who underwent IVF and with valid AMH results were initially found but only 1233 were included in the study. Mean age was 36.67 + 4.35 years and mean BMI was 24.43 + 4.14 kg/m2. There was minimal effect of BMI on AMH levels and increasing age (R2 = 0.0068), but there were significant differences of mean AMH levels among the general causes of infertility. The mean and median AMH values decreased with advancing age (R2 = 0.1391) although the mean values were consistently higher than the median values. The mean level of the AMH was 2.32 ± 1.90 ng/mL with a 0.16 ng/ml (confidence interval: 0.14–0.19 ng/ml) level decrease per year of increase in age. By age category, the following were the derived AMH values (ng/ml) at the 25th to 75th percentiles: 25–29 = 1.52–4.92; 30–34 = 1.60–4.10; 35–39 = 0.95–3.13; 40–44 = 0.44–1.99; 45 = 0.47–1.08. The mean AMH in this study appears to be similar to several but lower than most other reported AMH nomograms from other population groups. CONCLUSION: The first age-specific AMH reference values for infertile Filipino women are presented and may serve as a useful diagnostic marker in local infertility centers, especially those treating Filipino patients or others with similar characteristics.

Anti-Müllerian Hormone Levels and Risk of Cancer in Women

ObjectivesTo examine if age-specific anti-Müllerian hormone (AMH) levels are associated with cancer risk; and to investigate if age-related AMH trajectories differ between women who develop cancer and women who do not. More specifically, we examined associations with breast cancer, cancers in other tissues expressing AMH receptor AMHR2, and cancers in non-AMHR2-expressing tissues. Study designWe included longitudinal data from 3025 women in the prospective Doetinchem Cohort Study. Cox proportional hazards models were used to assess the association of baseline age-specific AMH tertiles with cancer. We applied linear mixed models to compare age-related AMH trajectories between women who were diagnosed with cancer and women who were not. Main outcome measuresCancer (n = 385; 139 breast cancers, 112 cancers in other AMHR2-expressing tissues, 134 cancers in non-AMHR2-expressing tissues). ResultsOverall, baseline age-specific AMH levels were not associated with cancer risk, although in women ≤ 40 years an increased risk was suggested for breast cancer (HRT2:T1 = 2.06, 95%CI = 0.95-4.48; HRT3:T1 = 2.03, 95%CI = 0.91–4.50). Analysis of age-related AMH trajectories suggested that AMH levels were higher at younger ages and declined faster in women who were diagnosed with cancer compared with women who were not, but our results did not provide evidence for actual differences in trajectories. ConclusionsOur results did not provide evidence for an association between age-specific AMH levels and age-related trajectories and risk of cancer. However, effect estimates for breast cancer were in line with risk-increasing effects found in previous studies.

Anti-Müllerian hormone concentrations in women with chronic kidney disease

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Do trends of adiposity and metabolic parameters vary in women with different ovarian reserve status? A population-based cohort study.

To investigate whether trends of adiposity and glucose metabolism parameters in women with low ovarian reserve status based on their anti-Mullerian hormone (AMH) levels differ from those with high ovarian reserve. In this population-based prospective study, eligible women, aged 20 to 50 years, were selected from among participants of the Tehran Lipid and Glucose Study (TLGS). Generalized estimating equation (GEE) models were applied to compare changes in various adiposity and metabolic parameters across time between women in the first and fourth quartiles of age-specific AMH, after adjustment for confounders. Pooled logistic regression was used to compare progression of prediabetes mellitus (pre-DM) and diabetes mellitus (DM) between the women of these two age-specific AMH quartiles. In this study of a total of 1,015 participants and with a median follow-up of 16 years, we observed that over time, both groups of women in the first and fourth quartiles of age-specific AMH experienced significant positive trends in their adiposity indices including central obesity, waist-to-hip ratio (WHR), waist-to-height ratio (WHtR), a body shape index (ABSI), and a negative trend in visceral adiposity index (VAI), whereas there was no significant difference in these parameters between the two groups. This study revealed that odds ratios of diabetes and prediabetes in women in the first quartile of age-specific AMH were not significantly different, compared with those in the fourth quartile. Women with lower ovarian reserve do not experience different over time trends of adiposity and glucose metabolism parameters during their reproductive life span.

Abstract P132: Anti-Müllerian Hormone Levels and Risk of Type 2 Diabetes in Women

Introduction: Given its role in ovarian follicle development, circulating anti-Müllerian hormone (AMH) is correlated with timing of menopause. Accordingly, women with higher AMH levels become menopausal at a higher age. Previous research suggests that a higher age at menopause is associated with a decreased risk of type 2 diabetes (T2D). In contrast, AMH levels are increased in women with polycystic ovary syndrome (PCOS), who have a higher risk of insulin resistance and T2D than women without PCOS. However, it is not clear yet whether AMH actually plays a role in the development of T2D. We aimed to investigate whether plasma AMH levels and age-related AMH trajectories are associated with risk of T2D in women. Hypothesis: Higher age-specific plasma AMH levels are associated with a decreased risk of T2D. Methods: We analyzed longitudinal data from 3104 female participants, aged 20-60 years at recruitment, in the population-based Doetinchem Cohort Study. In total, we analyzed 12460 plasma AMH measurements. We calculated age-specific AMH tertiles, to account for the strong AMH-age correlation. Cox Proportional hazards models adjusted for known risk factors for diabetes were used to assess the relation between age-specific AMH tertiles and T2D. We applied linear mixed models to compare age-related AMH trajectories between T2D cases and non-cases. Results: After a median follow-up of 20 years, 163 incident T2D cases were identified. Higher age-specific AMH levels were associated with a lower risk of T2D (hazard ratio (HR) T2vsT1 = 0.77, 95%CI: 0.53-1.11; HR T3vsT1 =0.62, 95%CI: 0.40-0.94; p for trend = 0.02). These findings were supported by predicted AMH trajectories, which suggested that plasma AMH levels were lower at younger ages and declined at a slower rate in women who were diagnosed with T2D compared to women who were not. However, differences in trajectories between T2D cases and non-cases were not statistically significant. Conclusions: We observed that women with higher age-specific AMH levels were at a lower risk of T2D. In addition, our longitudinal analyses may suggest that AMH is lower in women who develop T2D compared to women who do not. These findings are in line with previous studies that observed that a higher age at menopause was associated with a decreased risk of T2D.

Improving Prediction of Age at Menopause Using Multiple Anti-Müllerian Hormone Measurements: the Tehran Lipid-Glucose Study.

Several statistical models were introduced for the prediction of age at menopause using a single measurement of anti-müllerian hormone (AMH); however, individual prediction is challenging and needs to be improved. The objective of this study was to determine whether multiple AMH measurements can improve the prediction of age at menopause. All eligible reproductive-age women (n = 959) were selected from the Tehran Lipid and Glucose Study. The serum concentration of AMH was measured at the time of recruitment and twice after that at an average of 6-year intervals. An accelerated failure-time model with Weibull distribution was used to predict age at menopause, using a single AMH value vs a model that included the annual AMH decline rate. The adequacy of these models was assessed using C statistics. The median follow-up period was 14 years, and 529 women reached menopause. Adding the annual decline rate to the model that included single AMH improved the model's discrimination adequacy from 70% (95% CI: 67% to 71%) to 78% (95% CI: 75% to 80%) in terms of C statistics. The median of differences between actual and predicted age at menopause for the first model was -0.48 years and decreased to -0.21 in the model that included the decline rate. The predicted age at menopause for women with the same amount of age-specific AMH but an annual AMH decline rate of 95 percentiles was about one decade lower than in those with a decline rate of 5 percentiles. Prediction of age at menopause could be improved by multiple AMH measurements; it will be useful in identifying women at risk of early menopause.

Association between ovarian reserve and preeclampsia: a cohort study

BackgroundThe risk of cardiovascular disease in women increases after menopause. It has been shown that women with lower pre-menopausal ovarian reserve may experience increased cardiovascular risk. We sought to determine whether there is any association between ovarian reserve, as assessed by Anti-Mullerian hormone (AMH), and preeclampsia (PE).MethodsSubjects of this study were selected from among participants of the Tehran Lipid and Glucose Study (TLGS), a population-based cohort with a 15-year follow-up (1998–2014). Out of 2412 women aged 20–50 years, there were 781 women who met eligibility criteria, including having comprehensive data on their reproductive assessment and ovarian reserve status, identified based on age-specific AMH levels according to the exponential–normal three-parameter model that was measured before pregnancy.There were 80 and 701 participants in the preeclampsia and non-PE groups, respectively. The association between dichotomous outcome variable PE and age-specific AMH quartiles was evaluated using pooled logistic regression.ResultsPE was observed in 23 (11.1%), 12 (6.4%), 26 (13.3%) and 19 (10%) women in the 1st, 2nd, 3rd and 4th quartiles of pre-pregnancy age-specific AMH, respectively (P = 0.16). Median and inter-quartile range of serum AMH levels was 1.05 (0.36–2.2) mg/L in women who experienced PE compared with 0.85 (0.28–2.1) mg/L in women with normotensive pregnancies (P = 0.53). Based on the pooled logistic regression analysis, the effect of age-specific AMH quartiles on PE progression (adjusted for age, BMI, smoking status, and family history of hypertension) were not significant (OR1st vs 4th: 1.5, P-value: 0.1, CI: (0.9, 2.4)).ConclusionsAge-specific AMH may not be a suitable marker for prediction of PE. Further longitudinal studies, considering pre-conception measurement of AMH, are recommended for better interpretation of the association between ovarian reserve status and PE.

Overtime trend of thyroid hormones and thyroid autoimmunity and ovarian reserve: a longitudinal population study with a 12-year follow up

BackgroundOvarian reserve, vital for reproductive function, can be adversely affected by thyroid diseases. Despite alternations of thyroid hormones with ageing, data on interactions between the overtime trend of thyroid functions and ovarian reserve status has rarely been reported. We aimed to examine the overtime trend of thyroid hormones, thyroid peroxidase antibody (TPO Ab) and their associations with ovarian reserve status, identified by levels of age specific anti-mullerian hormone (AMH) in reproductive aged women, who participated in 12-year cohort of Tehran Thyroid Study (TTS).MethodsReproductive age women(n = 775) without any thyroid disease or ovarian dysfunction were selected from the Tehran Thyroid Study cohort. Participants were divided into four age specific AMH quartiles (Q1-Q4), Q1, the lowest and Q4, the highest. AMH was measured at the initiation of study and thyroid stimulating hormone (TSH), free T4 (FT4), and TPO Ab were measured at baseline and at three follow up visits.ResultsAt baseline, there was no statistically significant difference in thyroid hormones between women of the four quartiles, although TPO Ab levels were higher in women of Q1. During the follow ups, FT4 was decreased in all quartiles (p < 0.05), whereas TPO Ab increased in Q1 (p = 0.02). Odds ratio of overall TPO Ab positivity in women of Q1 was 2.08 fold higher than those in Q4. (OR: 2.08, 95%CI: 1.16, 3.72; p = 0.01).ConclusionWomen with the lowest ovarian reserves had higher levels of TPO Ab, with a positive trend of this antibody overtime in comparison to other quartiles, indicating that this group may be at a higher risk of hypothyroidism over time.

Age-Specific Peripheral Anti-Mullerian Hormone (AMH) Concentration: A Candidate Endocrine Marker for Fertility Assessment in Cattle

Anti- Mullerian hormone (AMH) emerges as the most reliable endocrine marker in assessing the fertility potential over the ages. The age-specific reference range for peripheral AMH concentrations in cattle is lacking. The present study thus aimed (i) to address the question whether ovarian secretion of AMH would be affected by gonadotrophic status after gonadotrophin releasing hormone (GnRH) challenge in cattle and (ii) to establish age-specific plasma AMH concentrations in Holstein Friesian crossbred cattle (n= 151) using an enzyme immune-assay technique. Data on hormonal concentrations over time in GnRH-treated animals were analyzed by nonparametric one-way repeated measure ANOVA. GnRH challenge could not bring any change (P>0.05) in plasma AMH concentrations, while plasma FSH and LH concentrations changed significantly (P

872: Age-specific anti-mullerian hormone (AMH) and preeclampsia: a 15-year cohort study

To investigate if there is any association between ovarian reserve status and preeclampsia. This longitudinal study was conducted on participants of Tehran Lipid and Glucose Study, an ongoing population based cohort study with 15 years follow up. Ovarian reserve status was identified according to age specific AMH levels, calculated using the exponential–normal 3-parameter model. Comparisons between those with and without preeclampsia were made using appropriate statistical methods. The association between age specific AMH and Preeclampsia was evaluated based on Buckley James regression method. 781 women, aged 20 -50 years, met eligibility criteria: 80 and 701 with and without confirmed preeclampsia, respectively. Prevalence of preeclampsia were 23 (11.1%), 12 (6.4 %), 26 (13.3%) and 19 (10%) in 1st, 2nd, 3rd and 4th quartiles of age specific AMH, respectively (P = 0.16). The median and inter quartile range of serum AMH level was 1.05 (0.36 – 2.2) mg/L in women with a history of preeclampsia compared with 0.85 (0.28 – 2.1) mg/L in women with normotensive pregnancies. Based on Buckley James regression method, decrease in AMH levels, with increasing age and BMI, was not statistically different in PE compared with that for women with normotensive pregnancies. Logistic regression analysis, with having variables age-specific AMH quartile, smoking status, BMI and systolic blood pressure in the model, revealed no association between preeclampsia and age-specific AMH quartiles. Also ROC analysis on age-specific AMH showed no predictive performance for preeclampsia; area under curve (95% CI) was 0.54 (0.45 – 0.63) (P = 0.40). Although the exact pathophysiology of AMH in ovarian aging is still a matter of debate, it is well documented that AMH is an appropriate biomarker of ovarian reserve and function and ovarian insufficiency is associated with vascular risks and events. Our study showed that age-specific AMH may not be valuable in predicting incidence of preeclampsia. Future cohort studies with multiple AMH measurements and bench research to investigate the pathophysiology are needed.View Large Image Figure ViewerDownload Hi-res image Download (PPT)

Chronological age vs biological age: a retrospective analysis on age-specific serum anti-Müllerian hormone levels for 3280 females in reproductive center clinic

The aim of the present study was to determine the correlation between chronological age and biological age by characterizing age-specific serum anti-Müllerian hormone (AMH) values for 3280 Chinese women. A retrospective analysis including 3280 females between 10 to 52 years old was conducted from January 2016 to December 2016 in the clinical laboratory of Center for Reproductive Medicine, The Third Affiliated Hospital of Sun Yat-sen University, China. All included women were divided into several groups by age. Distribution and Statistical description of age-specific AMH levels was provided. Our results showed that serum AMH levels were negatively correlated with age (r = −0.606, p < .001). AMH concentrations approximately 31.1% depended on age and descended by an average of 6.2% per year. Around 25, 35 and 40 years, the decrease of AMH values accelerated. In conclusion, biological age was inversely correlated with chronological age. The present data can provide information for evaluating the fertility potential and ovarian reserve of infertile patients, as well as facilitate clinicians to decide individual treatment options.

Suspected ontogeny of a recently described hypo-androgenic PCOS-like phenotype with advancing age.

A recent report described a new PCOS-like phenotype in lean older infertile women, and was characterized by high age-specific anti-Müllerian hormone (AMH) but hypo- rather than the expected hyper-androgenism. The hypo-androgenism was, furthermore, characterized of, likely, adrenal origin and autoimmune etiology. We extracted data on 708 consecutive infertility patients, and separated them into three age-strata, <35, 36-42, and >42 years. In each stratum, we investigated how levels of anti-Müllerian hormone (AMH) and testosterone (T) interrelate between high-AMH (AMH ≥ 75th quantile) and normal AMH (25th-75th quantile) and low-T (total testosterone ≤19.0 ng/dL), normal-T (19.0-29.0 ng/dL) and high-T (>29.0 ng/dL). High-AMH cycles were presumed to reflect PCOS-like patients. Routine in vitro fertilization (IVF) cycle outcomes and clinical phenotypes of patients were then compared between groups with AMH and T as statistical variables. This hypo-androgenic PCOS-like phenotype already exists in age stratum <35 years. It appears to arise from a lean, at very young ages hyper-androgenic PCOS phenotype that develops in comparison to controls (likely autoimmune-induced) insufficiency of the adrenal zona reticularis (low-T and low-DHEAS) and zona fasciculata (low-C), and is characterized by frequent evidence of autoimmunity. A degree of adrenal insufficiency, thus, concomitantly appears to affect adrenal androgen and, to lesser degrees, glucocorticoid production (mineralocorticoids were not investigated). Here investigated new PCOS-like phenotype demonstrates features compatible with what under Rotterdam criteria has been referred to as PCOS phenotype-D. If confirmed, the observation that the ontogeny of this phenotype already at young ages is, likely, driven by adrenal autoimmunity, supports the position of the androgen excess and PCOS society that the etiology of phenotype-D differs from that of classical hyper-androgenic PCOS of mostly ovarian etiology.

Age-specific reference values and cut-off points for anti-müllerian hormone in infertile women following a long agonist treatment protocol for IVF.

The aims of this study were to determining the reference value of anti-müllerian hormone (AMH) in infertile women and effect of AMH on different ovarian responses in the stratum of BMI categories. Through a retrospective cohort study the information of 816 infertile patients referring to the referral infertility clinic of Mahdiyeh Hospital since the beginning of 2011 until the end of January 2016 were used. The normal-based method was undertaken to calculate age-specific AMH percentiles. To determine the effect of AMH on the outcomes of different ovarian responses following adjustment of associated variables, the multinomial regression model was used. Estimated reference intervals for AMH corresponding to the 2.5 and 97.5th‰ in patients with normal ovarian response are from 0.096 to 6.2ng/mL. These values for percentiles of 5, 10, 25, 50, 75, 90, and 95% are, respectively, 0.18, 0.33, 0.77, 1.68, 3.05, 4.45, and 5.36ng/dL. Also the reference value for the 20-year-old participants has a maximum range (0.12-7.64), while for 43-year-old ones has the lowest range (0.08-5.3). Among participants under and above 35years old, the optimal cut-off points for predicting normal ovarian response are, respectively, 1.5 and 1.2ng/dL. With each unit increase in the log of AMH concentration, the odds of having excessive ovarian response in patients with normal weight compared to that of having normal ovarian response is 32% higher. Determining AMH reference values in IVF candidates allows specialists to measure only AMH plasma levels in IVF candidates so as to find whether or not the ovarian response is normal before applying other therapeutic measures; accordingly, they can adjust a treatment plan for each individual separately.

Serum variations of anti-mullerian hormone and total testosterone with aging in healthy adult Iranian men: A population-based study.

BackgroundLiterature proves anti-mullerian hormone (AMH) and total testosterone (TT) as two important reproductive hormones in male development, however evidence regarding age variations of these hormones is lacking.AimsTo estimate the normal serum AMH values and to assess the age-specific TT levels in men aged 30–70, we conducted the present population-based study.MethodsA total of 831 healthy eligible men, aged 30–70 years, were recruited from Tehran Lipid and Glucose study cohort. Centiles for AMH were estimated according to the exponential normal 3-parameter model. The parametric method of Royston available in general software was applied for the first time to estimate the age-specific AMH and TT percentiles of 5th, 10th, 25th, 50th, 75th, 90th and 95th.ResultsMean AMH level was 6.93, ranging from 0.1 to 40.1 ng/ml. Serum AMH concentrations followed a steady reduction with increasing age. Mean TT level was 4.8, ranging from 0.44 to 11.4 ng/ml.DiscussionA measurable serum concentrations of AMH in healthy males throughout lifespan with variations, based on age, confirming a slight age-related AMH decline. Fractional polynomial (FP) regression models revealed that the mean and standard deviation (SD) of the TT were not associated with age, so the percentiles estimated were not age-specific.ConclusionWe presented a nomogram of age-specific AMH values in a healthy cohort of Iranian men. This finding might have clinical importance in dealing hormonal disorders in men.

Age-independent anti-Müllerian hormone (AMH) standard deviation scores to estimate ovarian function

ObjectiviesTo determine single year age-specific anti-Müllerian hormone (AMH) standard deviation scores (SDS) for women associated to normal ovarian function and different ovarian disorders resulting in sub- or infertility. Design and methodsDetermination of particular year median and mean AMH values with standard deviations (SD), calculation of age-independent cut off SDS for the discrimination between normal ovarian function and ovarian disorders. ResultsSingle-year-specific median, mean, and SD values have been evaluated for the Beckman Access AMH immunoassay. While the decrease of both median and mean AMH values is strongly correlated with increasing age, calculated SDS values have been shown to be age independent with the differentiation between normal ovarian function measured as occurred ovulation with sufficient luteal activity compared with hyperandrogenemic cycle disorders or anovulation associated with high AMH values and reduced ovarian activity or insufficiency associated with low AMH, respectively. ConclusionThese results will be helpful for the treatment of patients and the ventilation of the different reproductive options.

Age-specific nomograms for follicle stimulating hormone and anti-Mullerian hormone: A pilot study in Ile-Ife, Nigeria

Assessment of ovarian reserve is one of the steps in the management of infertile couples. Follicle Stimulating hormone (FSH) and anti-Müllerian hormone (AMH) are commonly used ovarian reserve markers in Africa. However, there is paucity of age-specific reference values for FSH and AMH among the African population. This study aimed at conducting a pilot study for generation of age-specific nomograms for FSH and AMH among fertile women in Ile-Ife, Nigeria. A pilot cross-sectional study that involved 65 fertile women within the age range of 18-45 yr were prospectively and consecutively recruited from November 2014 to January 2015. Peripheral blood samples were taken for basal serum FSH and random serum AMH. The samples were processed using enzyme linked immunosorbent (ELISA) assays. Age-specific FSH nomogram showed a gradual increase which became steeper at age 35 yr with an average yearly increase of 0.2 IU/L in basal serum FSH, while age-specific AMH nomogram showed a peak at 25 yr and then; an average yearly decrease of 0.11 ng/ml in random serum AMH from 25 yr. The age-specific nomograms generated by this pilot study suggest that AMH may be an earlier marker of reduced ovarian reserve; which if validated by future multicenter population based studies may facilitate counseling of women on their reproductive potentials.

Back to the basics of ovarian aging: a population-based study on longitudinal anti-Müllerian hormone decline.

BackgroundAnti-Müllerian hormone (AMH) is currently used as an ovarian reserve marker for individualized fertility counseling, but very little is known of individual AMH decline in women. This study assessed whether the decline trajectory of AMH is uniform for all women, and whether baseline age-specific AMH levels remain consistently high or low during this trajectory.MethodsA total of 3326 female participants from the population-based Doetinchem Cohort Study were followed with five visits over a 20-year period. Baseline age was 40 ± 10 years with a range of 20–59 years.AMH was measured in 12,929 stored plasma samples using the picoAMH assay (AnshLabs). Decline trajectories of AMH were studied with both chronological age and reproductive age, i.e., time to menopause. Multivariable linear mixed effects models characterized the individual AMH decline trajectories.ResultsThe overall rate of AMH decline accelerated after 40 years of age. Mixed models with varying age-specific AMH levels and decline rates provided the significantly best fit to the data, indicating that the fall in AMH levels over time does not follow a fixed pattern for individual women. AMH levels remained consistent along individual trajectories of age, with an intraclass correlation coefficient (ICC) of 0.87. The ICC of 0.32 for AMH trajectories with time to menopause expressed the large variation in AMH levels at a given time before the menopause. The differences between low and high age-specific AMH levels remained distinguishable, but became increasingly smaller with increasing chronological and reproductive age.ConclusionsThis is the first study to characterize individual AMH decline over a long time period and broad age range. The varying AMH decline rates do not support the premise of a uniform AMH decline trajectory. Although age-specific AMH levels remain consistently high or low with increasing age, the converging trajectories and variance of AMH levels at a given time before menopause shed doubt on the added value of AMH to represent individualized reproductive age.Electronic supplementary materialThe online version of this article (doi:10.1186/s12916-016-0699-y) contains supplementary material, which is available to authorized users.