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Inhibin B

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https://www.readbyqxmd.com/read/28081535/efficacy-and-safety-of-continuous-subcutaneous-infusion-of-recombinant-human-gonadotropins-for-congenital-micropenis-during-early-infancy%C3%A2
#1
Athanasia Stoupa, Dinane Samara-Boustani, Isabelle Flechtner, Graziella Pinto, Isabelle Jourdon, Laura González-Briceño, Maud Bidet, Kathleen Laborde, Didier Chevenne, Anne-Elodie Millischer, Henri Lottmann, Thomas Blanc, Yves Aigrain, Michel Polak, Jacques Beltrand
BACKGROUND: Early postnatal administration of gonadotropins to infants with congenital hypogonadotropic hypogonadism (CHH) can mimic minipuberty, thereby increasing penile growth. We assessed the effects of gonadotropin infusion on stretched penile length (SPL) and hormone levels in infants with congenital micropenis. METHODS: Single-center study including 6 males with micropenis in case of isolated CHH (n = 4), panhypopituitarism (n = 1), and partial androgen insensitivity syndrome (PAIS; n = 1)...
January 12, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28073378/hectd1-controls-the-protein-level-of-iqgap1-to-regulate-the-dynamics-of-adhesive-structures
#2
Xiaoli Shen, Zanhui Jia, Donato D'Alonzo, Xinggang Wang, Elisabeth Bruder, Fabienne Hélène Emch, Christian De Geyter, Hong Zhang
BACKGROUND: Cell migration including collective cell movement and individual cell migration are crucial factors in embryogenesis. During the spreading/migration of cells, several types of adhesive structures physically interacting with the extracellular matrix (ECM) or with another cell have been described and the formation and maturation of adhesion structures are coordinated, however the molecular pathways involved are still not fully understood. RESULTS: We generated a mouse embryonic fibroblast line (MEF) from homozygous mutant (Hectd1 (R/R) , Hectd1 (Gt(RRC200)) ) mouse of the E3 ubiquitin ligase for inhibin B receptor (Hectd1)...
January 5, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28036005/bisphenol-a-and-ovarian-reserve-among-infertile-women-with-polycystic-ovarian-syndrome
#3
Wei Zhou, Fang Fang, Wenting Zhu, Zi-Jiang Chen, Yanzhi Du, Jun Zhang
To better understand possible effects of bisphenol A (BPA) exposure on ovarian reserve in women with polycystic ovary syndrome (PCOS), we measured creatinine adjusted urinary BPA (BPA_Cre) concentrations and used regression models to evaluate the association between urinary BPA level and antral follicle count (AFC), antimullerian hormone (AMH), day-3 follicle stimulating hormone levels (FSH) and inhibin B (INHB) in 268 infertile women diagnosed with PCOS. BPA was detected in all women with a median concentration of 2...
December 27, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28007789/reproductive-hormones-of-icsi-conceived-young-adult-men-the-first-results
#4
Florence Belva, Mathieu Roelants, Jean De Schepper, André Van Steirteghem, Herman Tournaye, Maryse Bonduelle
STUDY QUESTION: Are reproductive hormone levels (FSH, LH, inhibin B and testosterone) in male offspring conceived by ICSI because of male infertility comparable with those from peers born after spontaneous conception? SUMMARY ANSWER: In this cohort of 54 young men conceived by ICSI because of male-factor infertility, mean and median reproductive hormone levels were found to be comparable with results from spontaneously conceived peers, but ICSI-conceived men were more likely to have low inhibin B (<10th percentile) and high FSH (>90th percentile) levels...
December 21, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27927844/congenital-hypogonadotropic-hypogonadism-functional-hypogonadotropism-or-constitutional-delay-of-growth-and-puberty-an-analysis-of-a-large-patient-series-from-a-single-tertiary-center
#5
Tero Varimo, Päivi J Miettinen, Johanna Känsäkoski, Taneli Raivio, Matti Hero
STUDY QUESTION: What diagnoses underlie delayed puberty (DP) and predict its outcome? SUMMARY ANSWER: A multitude of different diagnoses underlie DP, and in boys a history of cryptorchidism, small testicular size and slow growth velocity (GV) predict its clinical course. WHAT IS KNOWN ALREADY: DP is caused by a variety of underlying etiologies. Hormonal markers can be used in the differential diagnosis of DP but none of them have shown complete diagnostic accuracy...
January 2017: Human Reproduction
https://www.readbyqxmd.com/read/27922109/regulation-of-hepcidin-expression-by-inflammation-induced-activin-b
#6
Yohei Kanamori, Makoto Sugiyama, Osamu Hashimoto, Masaru Murakami, Tohru Matsui, Masayuki Funaba
Activin B is induced in response to inflammation in the liver and enhances hepcidin expression, but the source of activin B and the molecular mechanism underlying hepcidin induction are not clear yet. Lipopolysaccharide (LPS)-induced inflammation induced inhibin βB but not inhibin α or inhibin βA expression in the liver, implicating activin B induction. Immunoreactive inhibin βB was detected in endothelial cells and Kupffer cells in LPS-treated liver. Activin B, but not activin A or activin AB, directly increased hepcidin expression...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27871721/roles-of-human-epididymis-protein-4-carbohydrate-antigen-125-inhibin-b-and-anti-m%C3%A3-llerian-hormone-in-the-differential-diagnosis-and-follow-up-of-ovarian-granulosa-cell-tumors
#7
Ulla-Maija Haltia, Marianne Hallamaa, Johanna Tapper, Johanna Hynninen, Henrik Alfthan, Bhanu Kalra, Olli Ritvos, Markku Heikinheimo, Leila Unkila-Kallio, Antti Perheentupa, Anniina Färkkilä
OBJECTIVE: Evaluation of circulating tumor markers in ovarian cancer is crucial for optimal patient care. The goal of this study was to verify the most accurate circulating tumor markers for the diagnosis and follow-up of adult-type granulosa cell tumors (AGCTs). METHODS: The levels of circulating human epididymis protein 4 (HE4) and carbohydrate antigen 125 (CA125), together with AGCT markers inhibin B and anti-Müllerian hormone (AMH), were measured in 135 samples from AGCT patients, 37 epithelial ovarian carcinoma (EOC) patients, and 40 endometrioma (ENDO) patients...
January 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/27856496/interrelationships-among-reproductive-hormones-and-antral-follicle-count-in-human-menstrual-cycles
#8
David Mark Robertson, Chel Hee Lee, Angela Baerwald
It is recognised that ovarian factors, including steroid and protein hormones, are critical in the feedback regulation of pituitary gonadotropins; however, their individual contributions are less defined. The aim of this study was to explore the reciprocal relationships between ovarian and pituitary hormones across the normal ovulatory menstrual cycle as women age. FSH, LH, oestradiol, progesterone, inhibin A, inhibin B and anti-mullerian hormone (AMH) were measured in serum collected every 1-3 days across one interovulatory interval (IOI) from 26 healthy women aged 18-50 years...
November 2016: Endocrine Connections
https://www.readbyqxmd.com/read/27834317/is-age-at-puberty-associated-with-semen-quality-and-reproductive-hormones-in-young-adult-life
#9
Lea Lb Lauridsen, Linn H Arendt, Henrik Støvring, Jørn Olsen, Cecilia H Ramlau-Hansen
The evidence is scarce on the association between age at puberty and semen quality. A cohort of 320 Danish men aged 18-21 years enrolled in the "Healthy Habits for Two" birth cohort provided self-reported data on pubertal indicators and delivered semen and blood samples. The results indicated an association between older age at pubertal development and lower semen quality and altered reproductive hormones concentrations as measured in young adult life. Men who had their first nocturnal emission, start of pubic hair growth and first voice break episode when older than 15 years had 37...
November 4, 2016: Asian Journal of Andrology
https://www.readbyqxmd.com/read/27834316/fatty-acid-intake-in-relation-to-reproductive-hormones-and-testicular-volume-among-young-healthy-men
#10
Lidia Mínguez-Alarcón, Jorge E Chavarro, Jaime Mendiola, Manuela Roca, Cigdem Tanrikut, Jesús Vioque, Niels Jørgensen, Alberto M Torres-Cantero
Emerging evidence suggests that dietary fats may influence testicular function. However, most of the published literature on this field has used semen quality parameters as the only proxy for testicular function. We examined the association of fat intake with circulating reproductive hormone levels and testicular volume among healthy young Spanish men. This is a cross-sectional study among 209 healthy male volunteers conducted between October 2010 and November 2011 in Murcia Region of Spain. Participants completed questionnaires on lifestyle, diet, and smoking, and each underwent a physical examination, and provided a blood sample...
October 28, 2016: Asian Journal of Andrology
https://www.readbyqxmd.com/read/27800162/gonadal-response-after-a-single-dose-stimulation-test-with-recombinant-human-chorionic-gonadotropin-rhcg-in-patients-with-isolated-prepubertal-cryptorchidism
#11
Leticia Ribeiro Oliveira, Thais Kataoka Homma, Renata Reis Woloszynek, Vinícius Nahime Brito, Carlos Alberto Longui
BACKGROUND: The evaluation of prepubertal gonadal Leydig cells secretion requires gonadotropin stimulation. Urinary hCG (human chorionic gonadotropin) is currently unavailable in many countries, however, recombinant hCG (rhCG) can be used. Our aim was to evaluate rhCG-stimulated testicular hormones in a group of patients with cryptorchidism. METHODS: We evaluated 31 prepubertal boys (age range, 0.75-9.0 years) presenting with unilateral (n = 24) or bilateral (n = 7) cryptorchidism...
2016: Basic and Clinical Andrology
https://www.readbyqxmd.com/read/27798603/zika-virus-infection-damages-the-testes-in-mice
#12
Jennifer Govero, Prabagaran Esakky, Suzanne M Scheaffer, Estefania Fernandez, Andrea Drury, Derek J Platt, Matthew J Gorman, Justin M Richner, Elizabeth A Caine, Vanessa Salazar, Kelle H Moley, Michael S Diamond
Infection of pregnant women with Zika virus (ZIKV) can cause congenital malformations including microcephaly, which has focused global attention on this emerging pathogen. In addition to transmission by mosquitoes, ZIKV can be detected in the seminal fluid of affected males for extended periods of time and transmitted sexually. Here, using a mouse-adapted African ZIKV strain (Dakar 41519), we evaluated the consequences of infection in the male reproductive tract of mice. We observed persistence of ZIKV, but not the closely related dengue virus (DENV), in the testis and epididymis of male mice, and this was associated with tissue injury that caused diminished testosterone and inhibin B levels and oligospermia...
December 15, 2016: Nature
https://www.readbyqxmd.com/read/27760631/-relationship-between-decreased-expression-of-inhibin-b-and-spermatogenesis-dysfunction-in-rats-testis
#13
J Zhang, P P Jin, K Fang, Q T Yi, M F Tang, C H Chen, J H Guo, M Gong
Objective: To explore the effects of varicocele on the expressions of inhibin B in rat testes and the relationship between expression of inhibin B and spermatogenesis dysfunction. Methods: Twenty specific-pathogen-free Sprague-Dawley (SD) male rats were randomly divided into two groups with random number table: 4-week control group (C4) and 4-week experimental group(V4). Experimental varicocele was created by partial ligation of left renal vein in the V4 group; vein isolation without ligation was performed in the C4 group...
September 27, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27756855/inhibin-b-secretion-and-fsh-isoform-distribution-may-play-an-integral-part-of-follicular-selection-in-the-natural-menstrual-cycle
#14
REVIEW
C Yding Andersen
The aim of the present paper is to expand the concept on how follicular selection takes place in the follicular phase of the natural menstrual cycle. It is suggested that inhibin-B exerts a more intimate role in this process than previously understood. Inhibin-B shows a peak in the circulation around cycle day 7, simultaneous with selection of the dominant follicle, whereas levels of estradiol and inhibin-A only start to increase a few days later suggesting that inhibin-B is mainly responsible for downregulating pituitary FSH release...
October 18, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27756786/a-phase-ii-randomized-open-label-study-of-neoadjuvant-degarelix-versus-lhrh-agonist-in-prostate-cancer-patients-prior-to-radical-prostatectomy
#15
Rashid Sayyid, Andrew Evans, Karen Hersey, Ranjena Maloni, Antonio Hurtado-Coll, Girish Kulkarni, Antonio Finelli, Alexandre R Zlotta, Robert Hamilton, Martin Gleave, Neil Fleshner
PURPOSE: Degarelix, a new GnRH receptor antagonist with demonstrated efficacy as first-line treatment in the management of high-risk prostate cancer, possesses some theoretical advantages over LHRH analogues in terms of avoiding "testosterone flare" and lower FSH levels. We set out to determine if pre-operative degarelix influenced surrogates of disease control in a randomized phase II study. EXPERIMENTAL DESIGN: 39 patients were randomly assigned to one of 3 different neo-adjuvant arms: degarelix only, degarelix/bicalutmaide, or LHRH agonist/bicalutamide...
October 18, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27746376/ccl2-and-ccr2-regulate-pain-related-behaviour-and-early-gene-expression-in-post-traumatic-murine-osteoarthritis-but-contribute-little-to-chondropathy
#16
J Miotla Zarebska, A Chanalaris, C Driscoll, A Burleigh, R E Miller, A M Malfait, B Stott, T L Vincent
OBJECTIVE: The role of inflammation in structural and symptomatic osteoarthritis (OA) remains unclear. One key mediator of inflammation is the chemokine CCL2, primarily responsible for attracting monocytes to sites of injury. We investigated the role of CCL2 and its receptor CCR2 in experimental OA. DESIGN: OA was induced in 10 weeks old male wild type (WT), Ccl2(-/-) and Ccr2(-/-) mice, by destabilisation of the medial meniscus (DMM). RNA was extracted from whole joints at 6 h and 7 days post-surgery and examined by reverse transcription polymerase chain reaction (RT-PCR)...
October 13, 2016: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/27689825/inhibin-a-and-inhibin-b-producing-ovarian-fibrothecoma-revealed-by-suppression-of-follicle-stimulating-hormone-fsh-in-a-post-menopausal-woman-report-of-the-first-case
#17
Justine Hugon-Rodin, Négar Kalhorpour, Bruno Borghese, Corinne Bordonne, Pierre-Alexandre Just, Anne Gompel, Najiba Lahlou
In this report, we describe the first case ever reported in the literature, of an inhibin-A (INHA) and inhibin-B (INHB) producing fibrothecoma. A post-menopausal woman was referred to our unit because of follicle stimulating hormone (FSH) level below the reference interval for postmenopausal women. By contrast luteinizing hormone, hCG, and estradiol levels were within normal range. This discrepancy suggested the secretion of FSH inhibitory factors. INHB and INHA levels were markedly elevated for age, 475 pg/mL and 100 pg/mL, respectively...
November 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27687494/the-endocrine-influence-on-the-bone-microenvironment-in-early-breast-cancer
#18
Caroline Wilson, Hannah Brown, Ingunn Holen
Multiple factors influence the survival of disseminated breast tumour cells (DTCs) in bone. Whilst gene signature studies have identified genes that predict a propensity of tumours to metastasise to bone, the bone environment is key in determining the fate of these tumour cells. Breast cancer cells locate to specific niches within the bone that support their survival, regulated by host factors within the bone microenvironment including bone cells, cells of the bone micro vasculature, immune cells and the extracellular matrix...
September 29, 2016: Endocrine-related Cancer
https://www.readbyqxmd.com/read/27680667/immunophenotyping-of-rabbit-testicular-germ-and-sertoli-cells-across-maturational-stages
#19
B Banco, G Grilli, C Giudice, A Tomas Marques, S Cotti Cometti, G Visigalli, V Grieco
During testicular maturation, both Sertoli cells (SCs) and germ cells (GCs) switch from an immature to a mature immunophenotype. The reexpression of markers of immaturity in adults has been reported in cancer and in other testicular pathologies, in men as well as in animal species. Naturally affected with testicular cancer, rabbits have long been used in human reproductive research, but reports on the expression of testicular cell markers in this species are few and data about the immunophenotype of normal postnatal SCs and GCs are lacking...
September 28, 2016: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/27680030/gonadal-function-in-boys-with-newly-diagnosed-cancer-before-the-start-of-treatment
#20
Kiki M G J Wigny, Wendy van Dorp, Anne-Lotte L F van der Kooi, Yolanda B de Rijke, Andrica C H de Vries, Marij Smit, Saskia M F Pluijm, Erica L T van den Akker, Rob Pieters, Joop S E Laven, Marry M van den Heuvel-Eibrink
STUDY QUESTION: Are Inhibin B and testosterone levels reduced in boys with newly diagnosed cancer prior to therapy? SUMMARY ANSWER: Pretreatment serum levels of Inhibin B and testosterone are significantly reduced in boys with newly diagnosed cancer, compared to reference values. WHAT IS ALREADY KNOWN: Disease-related gonadal impairment has been demonstrated in girls and young women diagnosed with cancer, prior to therapy. STUDY DESIGN, SIZE, DURATION: We conducted a descriptive study in boys newly diagnosed with cancer between January 2006 and February 2014...
November 2016: Human Reproduction
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