Results 131 to 140 of about 126,611 (274)

Effects of Polyamines on the Release of Gonadotropin-Releasing Hormone and Gonadotropins in Developing Female Rats

, 2002
Polyamines, putrescine (PUT), spermidine (SPD), spermine (SPM), and agmatine (AGM), are polycationic amines related to multiple cell functions found in high concentrations during the development of hypothalamus and pituitary.
Sandra M. Thyssen, Carlos Libertun, Astrid Chamson, Pablo F. Hockl, Victoria A.R. Lux-Lantos   +4 more
core   +1 more source

Resumption of Menses and Normalisation of Body Weight in Adolescents Undergoing Specialised Treatment for Anorexia Nervosa Inpatient or Outpatient Treatment

European Eating Disorders Review, Volume 34, Issue 6, Page 1515-1527, November 2026.
ABSTRACT Objective To predict resumption of menses (ROM) in patients with anorexia nervosa (AN). Method Females aged 9–17 years with AN, receiving inpatient multimodal treatment (IMT) or family‐based treatment (FBT) underwent assessments at baseline, 6‐month and 12‐month follow‐up (12FU).
Annika Woltmann, Linus Imken, Vivien Kaiser, Johanna L. Keeler, Daniel Le Grange, Christoph U. Correll, Verena Haas   +6 more
wiley   +1 more source

Pituitary Dysfunction Among Men Presenting with Hypogonadism

, 2019
PURPOSE OF REVIEW: Hypogonadism is a common endocrine dysfunction. This review focuses on the most up-to-date guideline for evaluation of pituitary function among men presenting with signs and symptoms of hypogonadism. RECENT FINDINGS: The clinician must
Arguello, Mingxue, Rao, Sudhaker D, Levy, Shiri, Macki, Mohamed   +3 more
core   +1 more source

Aromatase cytochrome P450 enzyme expression in human pituitary

, 2008
Aromatase (P450AROM) converts testosterone to estrogen. This conversion could be important in normal physiology and estradiol-induced tumorigenesis in human pituitary.
Erensoy, Nevin, Kadioglu, Pınar, Senel, Berna, Kadioglu, Pinar, Oral, Gökhan, Ozbek, Ugur, Sav, Aydin, Cetin, Gürsel, Sayitoglu, Müge, Gazioglu, Nurperi   +9 more
core   +1 more source

Integrated Reproductive and Cytogenetic Assessment of Infertility in a Captive Jaguar (Panthera onca)

Veterinary Medicine and Science, Volume 12, Issue 6, November 2026.
Integrated reproductive and cytogenetic assessment of infertility in a captive jaguar pair identified normal chromosomal status in both individuals, whereas impaired semen quality in the male likely represents a major limiting factor for reproductive success under the observed conditions.
Marie Altmanová, Julie Strand, Kathrine Thejll Kirchhoff, Zuzana Majtánová   +3 more
wiley   +1 more source

Ultrastructural sperm analysis in men with insulin-dependent diabetes

, 2002
The sperm ultrastructure and the hypothalamo-pituitary-testicular axis, were analysed in 22 insulin-dependent diabetic men and 24 controls. GnRH was administered; subsequently FSH and LH induced-secretion was evaluated.
Gambera, Laura, Serafini, Francesca, Baccetti, Baccio, Capitani, Serena, Moretti, Elena, Piomboni, Paola, Petraglia, Felice, LA MARCA, Antonio, Bruni, E., Scapigliati, Giacomo, DE LEO, Vincenzo   +10 more
core   +1 more source

Histological Findings in Testes of Baboons (Papio spp.) and Dwarf Bucks (Capra hircus) Subject to Repeated Immunisation Against GnRH

Veterinary Medicine and Science, Volume 12, Issue 6, November 2026.
Long‐term repeated immunisation against GnRH resulted in the absence of active spermatogenesis and may lead to irreversible infertility in dwarf bucks and baboons. Histological examination revealed a marked reduction of the seminiferous tubular lumen, complete depletion of germ cells, germ cell vacuolization and tubular hyalinization.
Teresa Ferrín, Eva Martínez‐Nevado, Juncal García, Adolfo Toledano‐Díaz, Rosario Velázquez, Esther Alba, Cristina Castaño, Belén Martinez‐Madrid, Julián Santiago‐Moreno   +8 more
wiley   +1 more source

Testicular histopathology and its association with germ cell numbers, serum concentrations of reproductive hormones, and semen quality

Andrology, Volume 14, Issue 8, Page 2388-2400, November 2026.
Abstract Background It is well‐established that spermatogenesis, semen quality, and reproductive hormones are interlinked. It is, however, less well‐described how various specific testicular histopathologies are linked to reproductive hormones and semen quality.
Gülizar Saritas, Nina Mørup, Trine H. Johannsen, Anders Juul, Lise Aksglaede, Sofia B. Winge, Kristian Almstrup   +6 more
wiley   +1 more source

Arcuate kisspeptin neurons display two types of calcium events: Regulation by sex, gonads, and senktide

Journal of Neuroendocrinology, Volume 38, Issue 11, November 2026.
Abstract The pattern of gonadotropin‐releasing hormone (GnRH) release controls reproduction in vertebrates and is regulated by feedback from the gonads. Evidence is accumulating that steroid‐sensitive hypothalamic arcuate kisspeptin–neurokinin B–dynorphin (KNDy) neurons drive GnRH pulses.
R. Anthony DeFazio, Christian R. Burgess, Laura L. Burger, Amanda G. Gibson, Suzanne M. Moenter   +4 more
wiley   +1 more source

Recent advances in polyendocrine metabolic ovarian syndrome, formerly polycystic ovary syndrome, with emphasis on endocrine and metabolic dysfunction and cardiovascular risk

Journal of Internal Medicine, Volume 300, Issue 5, Page 590-609, November 2026.
Abstract Polyendocrine metabolic ovarian syndrome (PMOS), previously known as polycystic ovary syndrome, affects 10%–13% of women of reproductive age and remains underdiagnosed despite its substantial health burden. The introduction of the new PMOS nomenclature in 2026 reflects a fundamental shift in understanding the condition as a lifelong endocrine ...
Maria Forslund, Johanna Melin, Anju E. Joham, Terhi T. Piltonen, D. Aled Rees, Helena J. Teede   +5 more
wiley   +1 more source