Results 121 to 130 of about 1,388,477 (251)

Molecular Mechanisms of Dysregulated LH and FSH Secretion in Human Reproductive Failure

Biomedicines
Several reproductive issues in both men and women are caused by changes in the pulsatile secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH).
Athanasios Zikopoulos, Efthalia Moustakli, Anastasios Potiris, Vasilis Sebastian Paraschos, Periklis Katopodis, Pavlos Machairoudias, Panagiotis Antsaklis, Nikolaos Kathopoulis, Ismini Anagnostaki, Sofoklis Stavros   +9 more
doaj   +1 more source

The localization of human FSH in the testis

, 1998
Localization of the follicle-stimulating hormone (FSH) molecule and its receptor (FSHR), as well as the role of FSH in Sertoli cell mitosis and maturation, has been demonstrated by several investigators in human and murine testis by detecting the ...
G. Collodel, A. Eshkol, GAMBERA, L., E. Costantino‐Ceccarini, E. Moretti, STRAZZA, M., B. Baccetti, M. Strazza, L. Gambera, BACCETTI, B., ESKHOL, A., COSTANTINO CECCARINI, E., COLLODEL, G., PIOMBONI, P., MORETTI, E., P. Piomboni   +15 more
core   +1 more source

Sex Steroids Measurement by Mass Spectrometry in Hypogonadal Men in a Real‐World Setting: Serum Estradiol (E2) and E2 to Total Testosterone Ratio Do Not Differ Between Patients With Klinefelter Syndrome and Non‐Klinefelter Syndrome Hypogonadism

Andrology, EarlyView.
ABSTRACT Background Traditionally, Klinefelter syndrome (KS) was considered a clinical condition associated with hyperestrogenism. Aim To compare circulating sex steroids, particularly estrogens, in a cohort of KS and non‐KS hypogonadal men. Materials and Methods A cohort of hypogonadal men, treated and untreated, was prospectively enrolled in a real ...
Daniele Renda Livraghi, Francesco Costantino, Filippo Vignali, Giulia Canu, Maria Cristina De Santis, Laura Roli, Tommaso Fasano, Vincenzo Rochira, Sara De Vincentis   +8 more
wiley   +1 more source

Maternal Consumption of Artificially Sweetened Beverages in Pregnancies and Biomarkers of Fecundity in Adult Sons

Andrology, EarlyView.
ABSTRACT Introduction Maternal intake of artificial sweeteners in beverages (ASB) during pregnancy may have a programming effect on offspring health, including biomarkers of male fecundity. Objective We investigated whether maternal intake of ASB during pregnancy was associated with biomarkers of male fecundity in adult sons.
Frida Vinther Hauberg, Emilie Marquart Hviid, Mette Viola Stokholm, Anne Gaml‐Sørensen, Anne Ahrendt Bjerregaard, Thorhallur I. Halldorsson, Sandra Søgaard Tøttenborg, Cecilia Høst Ramlau‐Hansen   +7 more
wiley   +1 more source

Diabetes‐Induced Testicular Injury: Potential Protective Roles of Curcumin, Garcinia kola, and Momordica charantia in Rats

Andrology, EarlyView.
ABSTRACT Background Diabetes mellitus (DM) induces multifaceted cellular and structural alterations in the male reproductive system, thereby predisposing to infertility. Objectives This study aimed to evaluate the morphological, stereological, biochemical, histopathological, and ultrastructural changes induced by DM in testicular tissue, and to ...
Ayşenur Kaya Mutlu, Süleyman Kaplan
wiley   +1 more source

Integrating impact of FSH isoforms, androgens and inhibin-B on follicular development based on a two-phase model of the follicular phase

Reproductive Biology and Endocrinology
Background Follicle Stimulating Hormone (FSH) is central to follicular growth during the menstrual cycle. It is secreted in multiple isoforms that differ in glycosylation, bioactivity, and half-life. Acidic isoforms dominate early in the follicular phase,
Claus Yding Andersen
doaj   +1 more source

Prevalence of Spermatozoa in the Ejaculate of Adolescents With Klinefelter Syndrome: Implications for Fertility Counseling

Andrology, EarlyView.
ABSTRACT Background Klinefelter syndrome (KS) is the most common genetic cause of male infertility and is associated with nonobstructive azoospermia. Advances in surgical sperm retrieval techniques have enabled biological fatherhood in a subset of men with KS.
Cecilie N. Larsen, Andrés Felipe Ø. Fritzbøger, Sofia B. Winge, Niels Jørgensen, Anders Juul, Lise Aksglaede   +5 more
wiley   +1 more source

Children Born Using Ejaculated Sperm From Men With Klinefelter Syndrome. Is Sperm Production Associated With Testicular Volume?

Andrology, EarlyView.
ABSTRACT Background A large number of children have been born using testicular sperm from men with Klinefelter syndrome (KS), whereas reports of children conceived using ejaculated sperm are rare. Objective To review all published cases of children conceived using ejaculated sperm from men with KS, assess their health and karyotype, and evaluate ...
Jens Fedder, Freja Sørensen
wiley   +1 more source

Distribution and function of FSH receptor genetic variants in normal men

, 2002
Follicle stimulating hormone (FSH) plays a key role in the maintenance of qualitatively and quantitatively normal spermatogenesis. It controls gamete development through Sertoli cells, via binding to its receptor.
ZITZMANN M, ASATIANI K, NIESCHLAG E, VON ECKARDSTEIN S, SIMONI, Manuela, GROMOLL J   +5 more
core   +1 more source

Seminal Biomarkers and Sperm Proteomic Signatures Differentiate Acute and Chronic Male Accessory Gland Inflammation

Andrology, EarlyView.
ABSTRACT Background Male accessory gland inflammation (MAGI) comprises a heterogeneous group of inflammatory conditions that may differentially affect the seminal microenvironment and sperm function. However, whether transrectal ultrasound (TRUS)‐defined MAGI phenotypes correspond to distinct biological profiles remains insufficiently characterized ...
Emanuela Teveroni, Fiorella Di Nicuolo, Giorgia Mazzuccato, Alessandro Oliva, Emanuele Pierpaolo Vodola, Francesca Mancini, Carla Di Nardo, Edoardo Vergani, Michela Cicchinelli, Federica Iavarone, Cassandra Serantoni, Giuseppe Maulucci, Alessia Riente, Alfredo Pontecorvi, Andrea Urbani, Domenico Milardi, Silvia Baroni   +16 more
wiley   +1 more source