59 research outputs found
Follicle Stimulating Hormone Receptor (FSHR) Polymorphisms and Polycystic Ovary Syndrome (PCOS)
Polycystic ovary syndrome (PCOS) is the commonest endocrine abnormality in women
of reproductive age typically presenting with chronic oligo- or anovulation, clinical, or
biochemical hyperandrogenism and polycystic ovarian morphology (PCOM). Restoring
mono-ovulation is the ultimate goal of ovulation induction and most women do respond to
ovulation inducing agents causing their Follicle-stimulating hormone (FSH) levels to rise.
Familial clustering and the results from twin studies strongly support an underlying genetic
basis for PCOS. Recent Genome wide association studies (GWAS) have identified several
genetic variants being genome wide significantly associated with PCOS. Amongst those
are variants in or near the Luteinizing hormone (LH) and FSH receptor genes as well
as a variant in the FSH-β gene. The aim of this review is to summarize the available
evidence as to whether single nucleotide polymorphisms are able to modify the PCOS
phenotype or whether they constitute a risk factor for the syndrome. Data on the
role of FSHR polymorphisms in PCOS are conflicting. It seems that in large Chinese
studies FSHR polymorphisms are not associated with either PCOS risk or with PCOS
treatment outcome. However, in large scale studies in Caucasians these polymorphisms
seem to influence the risk of having PCOS. Moreover, these studies also showed that
some polymorphisms might affect some clinical features of PCOS as well as treatment
outcome. Although most research has focussed on the role of FSHR polymorphisms
there seems to be also some evidence showing that single nucleotide polymorphisms
(SNPs) in the LHCG-Receptor as well as those in FSH-β gene might also alter the
phenotype of PCOS. In conclusion most studies confirm that FSHR polymorphisms do
alter the phenotype of PCOS in that they either alter the response to exogenous FSH or
hat they increase the risk of having PCOS
Management of infertility in a patient presenting with ovarian dysfunction and McCune-Albright syndrome
Persistent autonomous ovarian dysfunction in McCune-Albright syndrome
(MAS) patients is associated with the development of multiple dominant
follicles, premature luteinization, cyst formation, and anovulatory
infertility. Due to the mosaic distribution of the mutation, ovaries may
be unequally affected. In the current patient, the least affected ovary
became quiescent upon GnRH agonist-induced gonadotropin suppression.
Normoovulatory cycles were restored after subsequent removal of the
affected right ovary, and a pregnancy was established within 3 months. A
healthy unaffected girl was born at term after an uneventful pregnancy.
The placental tissue was normal, and the mutation was not detected in the
placenta, umbilical cord structures, or umbilical cord blood. GnRH analog
administration may help to identify those MAS patients who might benefit
from unilateral ovariectomy. Because a healthy baby was born, evidence is
provided suggesting that MAS is not passed on to the children from the
parents
Anti-Müllerian hormone and ovarian morphology in women with hypothalamic hypogonadism
Context: Different phenotypical features of women with hypothalamic hypogonadism (HH), also known as World Health Organization-1 anovulation, including ovarian morphology, have been scarcely described in large cohorts. Some studies have reported increased levels of anti-Müllerian hormone (AMH) in women with HH. Objective: To assess whether women with HH, compared with healthy controls, have increased serum levels of AMH and what proportion of these women erroneously meet the Rotterdam Criteria for Polycystic Ovarian Syndrome (PCOS). Design, Setting and Participants: Retrospective cohort study in a Dutch academic medical center including 83 women with neither anovulation nor menstrual cycle disorders (healthy controls), 159 women with HH and 3640 women with PCOS. Age matching was used between the HH and PCOS group (1:2 ratio) to create a second group consisting of 318 age-matched women with PCOS. Intervention: None. Main outcome measures: AMH levels and ovarian morphology. Results: Median AMH serum levels for the HH group were 3.8 (<0.1–19.8), compared with 7.5 (<0.1–81.0) in the PCOS group and 1.9 (<0.1–21.5) in the control group (P < 0.001). In the HH group, 58 (36%) erroneously met the Rotterdam Criteria for PCOS (meeting 2 of 3 criteria). Conclusions: AMH levels are increased in women with HH. We hypothesize that this increase, although there was no increase in follicle count, may be explained by the presence of a relatively large pool of antral follicles smaller than 2 mm in diameter, that are undetectable by transvaginal ultrasound. This study highlights the importance of measuring gonadotropins and estradiol before diagnosing a patient with PCOS. (J Clin Endocrinol Metab 105: 1–7, 2020
Age-related differences in features associated with polycystic ovary syndrome in normogonadotrophic oligo-amenorrhoeic infertile women of reproductive years
OBJECTIVE: To assess the effect of age on clinical, endocrine and
sonographic features associated with polycystic ovary syndrome (PCOS) in
normogonadotrophic anovulatory infertile women of reproductive years
Patient predictors for outcome of gonadotrophin ovulation induction in women with normogonadotrophic anovulatory infertility: a meta-analysis
A systematic review was conducted to determine whether initial screening
characteristics of wo
Subfertility in Women With Rheumatoid Arthritis and the Outcome of Fertility Assessments
_Objective:_ Subfertility is frequently encountered among female rheumatoid arthritis (RA) patients and has been associated with disease activity and antirheumatic drugs. However, little is known about the results of the fertility assessments in these women. Our aim was to study the outcome of fertility assessments in subfer
Buccal swab as a reliable predictor for X inactivation ratio in inaccessible tissues
Background As a result of the epigenetic phenomenon of X chromosome inactivation (XCI) every woman is a mosaic of cells with either an inactive paternal X chromosome or an inactive maternal X chromosome. The ratio between inactive paternal and maternal X chromosomes is different for every female individual, and can influence an X-encoded trait or disease. A multitude of X linked conditions is known, and for many of them it is recognised that the phenotype in affected female carriers of the causative mutation is modulated by the XCI ratio. To predict disease severity an XCI ratio is usually determined in peripheral blood samples. However, the correlation between XCI ratios in peripheral blood and disease affected tissues, that are often inaccessible, is poorly understood. Here, we tested several tissues obtained from autopsies of 12 female individuals for patch size and XCI ratio. Methods XCI ratios were analysed using methylsensitive PCR-based assays for the AR, PCSK1N and SLITRK4 loci. XCI patch size was analysed by testing the XCI ratio of tissue samples with decreasing size. Results XCI patch size was analysed for liver, muscle, ovary and brain samples and was found too small to confound testing for XCI ratio in these tissues. XCI ratios were determined in the easily accessible tissues, blood, buccal epithelium and hair follicle, and compared with ratios in several inaccessible tissues. Conclusions Buccal epithelium is preferable over peripheral blood for predicting XCI ratios of inaccessible tissues. Ovary is the only inaccessible tissue showing a poor correlation to blood and buccal epithelium, but has a good correlation to hair follicle instead
Sexual Function in Women With Polycystic Ovary Syndrome: Design of an Observational Prospective Multicenter Case Control Study
Introduction: The prevalence of polycystic ovary syndrome (PCOS) is 10–15% in women of reproductive age. Its characteristics are (i) clinical or biochemical hyperandrogenism, (ii) oligomenorrhea or amenorrhea, and (iii) polycystic ovaries on ultrasound. PCOS is associated with lower quality of life, depression, anxiety, diabetes, and cardiovascular disease. Treatment commonly entails oral contraceptive use to lower endogenous androgen levels. Androgen levels and comorbidities may affect sexual function. Previous studies have addressed a limited range of possible contributing factors. We will assess sexual function as well as genital and self-reported sexual arousal in a laboratory setting in women with PCOS compared to an age-matched healthy control group. Modulation by biopsychosocial factors mentioned will be studied. Methods: This is a multicenter prospective case control study. The study population includes healthy women with and without PCOS, aged 18–40 years, in a stable heterosexual relationship for at least 6 months. Power is calculated at 67 participants in each group. Anticipating a drop out of 10%, 150 participants will be recruited. Main outcome measures: The main outcomes measured are sexual function using the Female Sexual Function Index, Sexual Desire Inventory, and Female Sexual Distress Scale-Revised; genital sexual arousal measured as vaginal pulse amplitude; and self-reported sexual arousal in response to erotic stimuli in a laboratory setting. The mediators that will be investigated include testosterone, free androgen levels, oral contraceptive use, sensitivity to androgens (using CAG repeat length), body mass index, body image, mental health, and self-esteem. Conclusion: Strengths of this study are the inclusion of a broad range of biopsychosocial outcome measures including DNA analysis, a healthy control group, and standardized assessment of genital and self-reported sexual arousal in a laboratory setting. With the design of this study we aim to provide an insight into which biopsychosocial factors associated with PCOS are related to sexual function, and how sexual function may be affected by treatment. These new insights may help to improve clinical management of PCOS while improving the quality of life. Pastoor H, Both S, Timman R, et al. Sexual Function in Women With Polycystic Ovary Syndrome: Design of an Observational Prospective Multicenter Case Control Study. Sex Med 2020;XX:XXX–XXX
The use of the mHealth program Smarter Pregnancy in preconception care: Rationale, study design and data collection of a randomized controlled trial
Background: Unhealthy nutrition and lifestyle contribute to the worldwide rising prevalence of non-communicable diseases. This also accounts for the reproductive population, in which unhealthy behavior affects fertility and pregnancy outcome. Maternal smoking, alcohol consumption and inadequate folic acid supplement use are strongly associated with fetal complications as small for gestational age, premature birth and congenital malformations. In the Netherlands 83% of the perinatal mortality rate is due to these complications and is relatively high compared to other European countries. In order to reduce this prevalence rate, preconception care should be focused on the promotion of health of prospective parents by identification and intervention on modifiable nutrition and lifestyle risk factors. We developed the personal mHealth program 'Smarter Pregnancy' (Dutch version available on: https://www.slimmerzwanger.nl) to provide individual coaching and information to improve nutrition and lifestyle during the preconception period in order to improve health of the reproductive population and subsequent generations. Methods: Women between 18 and 45 years of age, and trying to conceive are eligible for inclusion in a randomized controlled trial. Participants are allocated either to a general population cohort or a subfertile (IVF/ICSI) population cohort. The intervention group receives personal online coaching based on the identified nutrition and lifestyle risk factors at baseline. Coaching comprises recipes, incentives, additional questions including feedback and text and e-mail messages, with a maximum of three per week. The control group only receives one recipe per week to maintain adherence to the program and prevent drop out. Screening questionnaires are send in both groups at 6, 12, 18, and 24 weeks of the program to monitor the change in the identified risk factors. Discussion: We expect to demonstrate that the mHealth program 'Smarter Pregnancy' can effectively improve nutrition and lifestyle in couples contemplating pregnancy. By the identification and improvement of modifiable nutrition and lifestyle risk factors on a large scale, both reproductive and pregnancy outcomes can be improved and subsequent perinatal morbidity and mortality rates are expected to be reduced. The current use and rapid development of mHealth applications offers new opportunities to reach and educate large populations, which can facilitate the implementation of preconception care. Trial registration: Dutch trial register: NTR4150. (Registered 19th August 2013
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