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Anti-mullerian hormone

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https://www.readbyqxmd.com/read/29028571/identifying-ovarian-tissue-in-the-bitch-using-anti-m%C3%A3-llerian-hormone-amh-or-luteinizing-hormone-lh
#1
Helene Alm, Bodil S Holst
Reliable methods for determining whether or not a bitch has ovarian tissue present are needed for cases with unknown neutering status. Vaginal cytology consistent with heat is indicative of functional ovarian tissue. Other methods are required when the bitch is not presented in suspected heat. Progesterone can be analyzed during 2 months after suspected heat. During other stages, assays for the analyses of anti-Müllerian hormone (AMH) and luteinizing hormone (LH) have been used. The AMH assay is expected to give detectable concentrations (positive) in bitches with ovarian tissue, and the LH assay should give negative results in intact bitches, except during the pre-ovulatory LH peak...
September 27, 2017: Theriogenology
https://www.readbyqxmd.com/read/29016690/expression-profile-of-amh-amh-during-bi-directional-sex-change-in-the-protogynous-orange-spotted-grouper-epinephelus-coioides
#2
Guan-Chung Wu, Hau-Wen Li, Wei-Guan Tey, Chien-Ju Lin, Ching-Fong Chang
Gonadal differentiation is tightly regulated by the initial sex determining gene and the downstream sex-related genes in vertebrates. However, sex change in fish can alter the sexual fate from one sex to the other. Chemical-induced maleness in the protogynous orange-spotted grouper is transient, and a reversible sex change occurs after the chemical treatment is withdrawn. We used these characteristics to study Amh signaling during bi-directional sex change in the grouper. We successfully induced the female-to-male sex change by chemical (aromatase inhibitor, AI, or methyltestosterone, MT) treatment...
2017: PloS One
https://www.readbyqxmd.com/read/28982028/effect-of-age-and-castration-on-serum-anti-m%C3%A3-llerian-hormone-concentration-in-male-alpacas
#3
Michela Ciccarelli, Ahmed Tibary, Alexis J Campbell, Alan J Conley
The synthesis of anti-Müllerian Hormone (AMH) by the Sertoli cells in males is crucial for sexual differentiation. There are no studies on AMH in Camelids. The objectives of this research were to 1) compare AMH serum concentrations in prepubertal and adult male alpacas and 2) determine the effect of castration on these concentrations in adult males to provide a validation of a commercial AMH test in alpacas. Serum samples were obtained from 15 prepubertal animals (5 for each age groups of 6, 7 and 8 months) and from 5 adult males (age 5-9 years), pre- and 24 h post-castration...
September 28, 2017: Theriogenology
https://www.readbyqxmd.com/read/28980317/systematic-review-and-meta-analysis-of-the-effect-of-bipolar-electrocoagulation-during-laparoscopic-ovarian-endometrioma-stripping-on-ovarian-reserve
#4
REVIEW
Paula Deckers, Sérgio Conti Ribeiro, Ricardo Dos Santos Simões, Camila Barião da Fonseca Miyahara, Edmund Chada Baracat
BACKGROUND: Laparoscopic stripping is the gold-standard treatment for ovarian endometriosis. The choice of hemostasis method might affect ovarian reserve. OBJECTIVES: To determine whether bipolar electrocoagulation is more detrimental to ovarian reserve than non-thermal hemostasis methods. SEARCH STRATEGY: Entry terms associated with the MeSH terms "endometrioma," "laparoscopy," and "ovarian reserve" were used to search databases for articles published up to April 3, 2017, in English, Spanish, Portuguese, French, and Italian...
October 5, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28971280/reproductive-ovarian-testing-and-the-alphabet-soup-of-diagnoses-dor-poi-pof-por-and-for
#5
REVIEW
Lisa M Pastore, Mindy S Christianson, James Stelling, William G Kearns, James H Segars
There are large variations in the number of oocytes within each woman, and biologically, the total quantity is at its maximum before the woman is born. Scientific knowledge is limited about factors controlling the oocyte pool and how to measure it. Within fertility clinics, there is no uniform agreement on the diagnostic criteria for each common measure of ovarian reserve in women, and thus, studies often conflict. While declining oocyte quantity/quality is a normal physiologic occurrence as women age, some women experience diminished ovarian reserve (DOR) much earlier than usual and become prematurely infertile...
October 2, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28969874/fetal-sex-alters-maternal-anti-mullerian-hormone-during-pregnancy-in-cattle
#6
Anja Stojsin-Carter, Nathalia N Costa, Rodrigo De Morais, Tiago H De Bem, Mayra P Costa, Timothy F Carter, Daniel J Gillis, Michael S Neal, Otavio M Ohashi, Moyses S Miranda, Flavio V Meirelles, Laura A Favetta, W Allan King
Anti-Mullerian hormone (AMH) is expressed by both male and female fetuses during mammalian development, with males expressing AMH earlier and at significantly higher concentration. The aim of the current study was to explore the potential impact of pregnancy and fetal sex on maternal AMH and to determine if plasma (Pl) AMH or placenta intercotyledonary membrane and cotyledonary AMH receptor 2 (AMHR2) mRNA expression differ in pregnant cows carrying male vs. female fetuses. AMH levels in blood were measured using a bovine optimized ELISA kit...
November 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28955058/predictive-accuracy-of-anti-mullerian-hormone-as-indicator-of-ovarian-follicle-loss-in-cyclophosphamide-treated-mice
#7
Zehra Jamil, Khalida Perveen, Rabia Malik, Lubna Avesi
OBJECTIVE: To evaluate the strength of anti-mullerian hormone in reflecting the stages of ovarian toxicity-induced by cyclophosphamide. METHODS: This study was conducted in December 2014 and comprised female mice that were divided into four groups: group A served as control, group B received three weekly injections of cyclophosphamide, group C was co administered alpha-tocopherol along with cyclophosphamide, while group D solely received alpha-tocopherol. The ovaries were evaluated for follicular dynamics, and anti-mullerian hormone was assessed using mouse enzyme-linked immunosorbent assay kit...
October 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28949024/age-stratified-thresholds-of-anti-m%C3%A3-llerian-hormone-improve-prediction-of-polycystic-ovary-syndrome-over-a-population-based-threshold
#8
Didier Dewailly
No abstract text is available yet for this article.
September 26, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28944702/relationship-between-serum-anti-mullerian-hormone-and-intrafollicular-amh-levels-in-pcos-women
#9
M Stracquadanio, L Ciotta, M A Palumbo
Polycystic ovary syndrome is a complex disease characterized by various endocrine disorders that are the potential cause of anovulation and hyperandrogenism. Anti-Müllerian hormone expression is suspected to be overexpressed in PCOS granulosa cells. AMH acts as a regulator of folliculogenesis: it is produced by the granulosa cells of follicles from the stage of the primary follicle to the initial formation of the antrum. Serum and intrafollicular AMH levels are elevated in patients with PCOS due to increased number of small follicles and an increased secretion within each of these small follicles...
September 23, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28943191/laparoscopic-myomectomy-with-temporary-bilateral-uterine-artery-occlusion-compared-with-traditional-surgery-for-uterine-fibroids-blood-loss-and-recurrence
#10
Limei Ji, Lanying Jin, Min Hu
STUDY OBJECTIVE: To compare the surgical technique of temporary bilateral uterine artery blockage with titanium clips in laparoscopic myomectomy with traditional surgery for uterine fibroids to determine efficacy, ability to control bleeding, and recurrence. DESIGN: Randomized, controlled, prospective study (Canadian Task Force classification I). SETTING: Obstetrics and gynecology department in Jinhua Municipal Central Hospital. PATIENTS: Women with symptomatic uterine myoma...
September 21, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28938492/a-long-noncoding-rna-lncrna-amhr2-plays-a-role-in-amhr2-gene-activation-in-mouse-ovarian-granulosa-cells
#11
Atsushi P Kimura, Ryoma Yoneda, Misuzu Kurihara, Shota Mayama, Shin Matsubara
Anti-Müllerian hormone (AMH) is critical to the regression of Müllerian ducts during mammalian male differentiation and targets ovarian granulosa cells and testicular Sertoli and Leydig cells of adults. Specific effects of AMH are exerted via its receptor, AMH type II receptor (Amhr2), but the mechanism by which the Amhr2 gene is specifically activated is not fully understood. To see whether a proximal promoter was sufficient to Amhr2 gene activation, we generated transgenic mice that bore the enhanced green fluorescent protein (EGFP) gene driven by a 500-bp mouse Amhr2 gene promoter...
September 14, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938480/dysregulation-of-the-anti-m%C3%A3-llerian-hormone-system-by-steroids-in-women-with-polycystic-ovary-syndrome
#12
Alice Pierre, Joëlle Taieb, Frank Giton, Michaël Grynberg, Salma Touleimat, Hady El Hachem, Renato Fanchin, Danielle Monniaux, Joëlle Cohen-Tannoudji, Nathalie di Clemente, Chrystèle Racine
Context: Anti-Müllerian hormone (AMH) and AMH type II receptor (AMHR2) are overexpressed in granulosa cells (GCs) from women with polycystic ovary syndrome (PCOS), the most common cause of female infertility. Objective: The aim of the study was to compare the regulation of the AMH/AMHR2 system by 5α-dihydrotestosterone (5α-DHT) and estradiol (E2) in GCs from control and PCOS women. Design, Setting, Patients: Experiments were performed on follicular fluids (FF) and GCs from women undergoing in vitro fertilization...
August 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28934714/efficacy-of-dehydroepiandrosterone-dhea-to-overcome-the-effect-of-ovarian-ageing-ditto-a-proof-of-principle-double-blinded-randomized-placebo-controlled-trial
#13
Amarin Narkwichean, Walid Maalouf, Miriam Baumgarten, Lukasz Polanski, Nick Raine-Fenning, Bruce Campbell, Kannamannadiar Jayaprakasan
OBJECTIVE: To evaluate the effect of DHEA supplementation on In-Vitro Fertilisation (IVF) outcome as assessed by ovarian response, oocyte developmental competence and live birth rates in women predicted to have poor ovarian reserve (OR). The feasibility of conducting a large trial is also assessed by evaluating the recruitment rates and compliance of the recruited participants with DHEA/placebo intake and follow-up rates. STUDY DESIGN: A single centre, double blinded, placebo controlled, randomized trial was performed over two years with 60 women undergoing in-vitro fertilisation (IVF)...
September 8, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28921520/anti-m%C3%A3-llerian-hormone-and-risk-of-ovarian-cancer-in-nine-cohorts
#14
Seungyoun Jung, Naomi Allen, Alan A Arslan, Laura Baglietto, Aurelio Barricarte, Louise A Brinton, Brian L Egleston, Roni T Falk, Renée T Fortner, Kathy J Helzlsouer, Yutang Gao, Annika Idahl, Rudolph Kaaks, Vittorio Krogh, Melissa A Merritt, Eva Lundin, N Charlotte Onland-Moret, Sabina Rinaldi, Helena Schock, Xiao-Ou Shu, Patrick M Sluss, Paul N Staats, Carlotta Sacerdote, Ruth C Travis, Anne Tjønneland, Antonia Trichopoulou, Shelley S Tworoger, Kala Visvanathan, Elisabete Weiderpass, Anne Zeleniuch-Jacquotte, Joanne F Dorgan
Animal and experimental data suggest that anti-Müllerian hormone (AMH) serves as a marker of ovarian reserve and inhibits the growth of ovarian tumors. However, few epidemiologic studies have examined the association between AMH and ovarian cancer risk. We conducted a nested case-control study of 302 ovarian cancer cases and 336 matched controls from nine cohorts. Prediagnostic blood samples of premenopausal women were assayed for AMH using a picoAMH enzyme-linked immunosorbent assay. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated using multivariable-adjusted conditional logistic regression...
September 18, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28913122/impact-of-laparoscopic-ovarian-drilling-on-serum-anti-mullerian-hormone-levels-in-patients-with-anovulatory-polycystic-ovarian-syndrome
#15
Sobhana Paramu
OBJECTIVES: Anti-mullerian hormone (AMH) is a marker of the activity of recruitable ovarian follicles. It is useful in the prediction of ovarian reserve. Women with polycystic ovarian syndrome (PCOS) have elevated circulating and intrafollicular AMH levels. Laparoscopic ovarian drilling (LOD) in patients with PCOS destroys ovarian androgen-producing tissue and reduces their peripheral conversion to estrogens. Identifying factors that determine the response of patients with PCOS to LOD will help in selecting the patients who would likely benefit from this treatment...
December 2016: Turk J Obstet Gynecol
https://www.readbyqxmd.com/read/28911998/establishing-age-specific-reference-intervals-for-anti-m%C3%A3-llerian-hormone-in-adult-chinese-women-based-on-a-multicenter-population
#16
Xinqi Cheng, Qiong Zhang, Min Liu, Shijun Li, Zhihua Tao, Kiyoshi Ichihara, Songlin Yu, Kai Zhang, Pengchang Li, Jianhua Han, Ling Qiu
AIM OF THIS STUDY: Anti-Müllerian hormone (AMH) is useful for the assessment of ovarian reserve and treatment of individualized in vitro fertilization (IVF). The aim of this study is to establish AMH reference interval for adult Chinese women on the Beckman Beckman DxI 800 platform. MATERIAL AND METHODS: From May to September 2013, serum from 1169 apparently healthy adult females from five representative cities in China (Beijing, Hangzhou, Guangzhou, Dalian and Urumqi) were collected, and AMH was analyzed on the platform of Beckman DxI 800 automated chemiluminescence immunoassay...
November 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28904496/serum-amh-level-to-predict-the-hyper-response-in-women-with-pcos-and-non-pcos-undergoing-controlled-ovarian-stimulation-in-art
#17
Radha Vembu, Nellepalli Sanjeeva Reddy
BACKGROUND: It is essential to determine the cut-off value of serum anti-Mullerian hormone (AMH) to predict the hyper response in assisted reproductive technology (ART). There are few studies mentioning the cut-off value for the hyper response in infertile women but not specifically for polycystic ovary syndrome (PCOS) and non-PCOS groups. With this in background, this study was conducted. AIM: To determine the cut-off value of serum AMH to predict the hyper response in women with PCOS and non-PCOS undergoing a controlled ovarian stimulation (COS) in ART...
April 2017: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/28890679/effects-of-salpingectomy-during-abdominal-hysterectomy-on-ovarian-reserve-a-randomized-controlled-trial
#18
Afsaneh Tehranian, Roghayeh Hassani Zangbar, Faezeh Aghajani, Mahdi Sepidarkish, Saeedeh Rafiei, Tayebe Esfidani
BACKGROUND: The aim of this study was to investigate the effect of salpingectomy on ovarian function by measuring AMH. METHODS: This study was a balanced, single-center, double-blind, randomized, controlled trial in Ruin Tan Arash Hospital, Tehran, between May 2013 and November 2014. A total of 30 patients undergoing elective abdominal hysterectomy were randomized into two groups, 15 with salpingectomy and 15 without salpingectomy. The primary objective of this study was to compare mean difference of anti-Mullerian hormone (AMH) between two groups...
2017: Gynecological Surgery
https://www.readbyqxmd.com/read/28890443/stress-and-sex-does-cortisol-mediate-sex-change-in-fish
#19
Alexander Goikoetxea, Erica Todd, Neil Gemmell
Cortisol is the main glucocorticoid in fish and the hormone most directly associated with stress. Recent research suggests that this hormone may act as a key factor linking social environmental stimuli and the onset of sex change by initiating a shift in steroidogenesis from estrogens to androgens. For many teleost fish, sex change occurs as a usual part of the life cycle. Changing sex is known to enhance the lifetime reproductive success of these fish and the modifications involved (behavioral, gonadal, morphological) are well studied...
September 10, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28890430/how-to-personalize-ovarian-stimulation-in-clinical-practice
#20
Giovanna Sighinolfi, Valentina Grisendi, Antonio La Marca
Controlled ovarian stimulation (COS) in in vitro fertilization (IVF) cycles is the starting point from which couple's prognosis depends. Individualization in follicle-stimulating hormone (FSH) starting dose and protocol used is based on ovarian response prediction, which depends on ovarian reserve. Anti-Müllerian hormone levels and the antral follicle count are considered the most accurate and reliable markers of ovarian reserve. A literature search was performed for studies that addressed the ability of ovarian reserve markers to predict poor and high ovarian response in assisted reproductive technology cycles...
September 1, 2017: Journal of the Turkish German Gynecological Association
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