Results 101 to 110 of about 20,073 (204)

Heterokairic Genes and the Eco‐Evo‐Devo of Timing

Evolution &Development, Volume 28, Issue 2, June 2026.
Heterokairic genes as the bridge (Heterokairic Pathways?): Heterokairic genes are heterochronic regulators whose activity is modulated by environmental conditions. External cues (e.g., temperature, nutrition, oxygen, density: yellow box) are sensed (yellow arrows) and converted into endocrine and metabolic signals (purple box and arrow into fish's ...
Leandro Lofeu, Ehsan Pashay Ahi
wiley   +1 more source

KNDy kisspeptin is required for metabolic homeostasis in female mice in an ovarian hormone‐independent manner

Journal of Neuroendocrinology, Volume 38, Issue 6, June 2026.
Abstract Disorders of gonadotropin pulsatility contribute to reproductive dysfunction in humans and are often associated with metabolic dysfunction. Hypogonadotropic hypogonadism is characterized by chronically insufficient gonadotropin hormone production, leading to reproductive and metabolic impairments, such as infertility and obesity.
Nimisha Nandankar, Ariel L. Negrón, Harshini Ganesh, Natalia Youssef, Saad Farooq, Sarmed Al‐Samerria, Jon E. Levine, Sally Radovick   +7 more
wiley   +1 more source

Photoperiod modulates male sexual maturation in the Emperor tetra (Nematobrycon palmeri), a strictly tropical ornamental fish

Journal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.
Abstract Photoperiod manipulation is widely used to regulate reproduction in temperate fish species, but little is known about its effects in strictly tropical species. This study evaluated whether the Emperor tetra (Nematobrycon palmeri), a tropical ornamental fish, can modulate sexual maturation in response to artificial light regimes.
Lury N. García, Gabriele Lara, Germán E. Merino   +2 more
wiley   +1 more source

17, 20 α Dihydroxy Progesterone 07, 20 α DP) Production by Different Tissue in Common Carp (Cyprinus carpio) and Gold Fish (Carasius auratus)

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 1998
Different tissue (muscle, heart, eye, testis and blood) and sperm from Common carp and Gold fish, in order to evaluate activity of 20α hydroxy steroid Dihydrogenase 20α HSD) enzyme to convert radiactive 17α HP and amount of 0.01, 1 or 10m g of ...
M. Ebrahimi
doaj  

Central precocious puberty and risk of atopic diseases: The mediating role of obesity and sex hormones

Pediatric Allergy and Immunology, Volume 37, Issue 6, June 2026.
Abstract Background Atopic diseases, including atopic dermatitis, allergic rhinitis, and asthma, are complex inflammatory conditions with increasing prevalence in children. Central precocious puberty (CPP) has also become increasingly common. The potential role of CPP in atopic diseases remains unclear.
Yung‐Han Lai, Yu Hsiang Liu, Hsiao‐Chi Chuang, Nguyen Thi Kim Anh, Hsin‐Yuan Chang, Yang‐Chin Chen   +5 more
wiley   +1 more source

Update of the risk assessment on dioxins and dioxin‐like PCBs in feed and food

EFSA Journal, Volume 24, Issue 6, June 2026.
Abstract The European Commission asked EFSA to update its 2018 risk assessment on polychlorinated dibenzo‐p‐dioxins and dibenzofurans (PCDD/Fs) and dioxin‐like polychlorinated biphenyls (DL‐PCBs) in feed and food, based on the 2022 WHO Toxic Equivalency Factors (WHO2022‐TEFs).
EFSA Panel on Contaminants in the Food Chain (CONTAM Panel), Helle Katrine Knutsen, Agneta Åkesson, Vasileios Bampidis, Margherita Bignami, Laurent Bodin, James Kevin Chipman, Gisela Degen, Antonio Hernández‐Jerez, Tim Hofer, Christer Hogstrand, Stefano Landi, Jean‐Charles Leblanc, Kyriaki Machera, Evangelia Ntzani, Isabelle P. Oswald, Guido Rychen, Salomon Sand, Katharina Vejdovszky, Barbara Viviani, Jesús del Mazo, Andy Hart, Dieter Schrenk, José Cortiñas Abrahantes, Luisa Ramos Bordajandi, Francesca Riolo, Tuuli Tauriainen, Ron Hoogenboom   +27 more
wiley   +1 more source

Immune System Regulation by Gonadal Steroid Hormones

, 2015
Autoimmune diseases are more prevalent in women while infectious diseases occur more often in men. Immune system responses differ between genders which suggest that sexual hormones are involved. Systemic Lupus Erythematosus (SLE) is an autoimmune disease with one of the greatest female sex bias. The etiology of the disease remains poorly defined.
openaire   +1 more source

Circulating adrenal and gonadal steroid hormones heterogeneity in active young males and the contribution of 11-oxy androgens. [PDF]

Sci Rep
Swart AC, van Rooyen D, du Toit T, Heyns B, Molphy J, Wilson M, Leahy R, Atkin SL.   +7 more
europepmc   +1 more source

A Review on Testosterone: Estradiol Ratio—Does It Matter, How Do You Measure It, and Can You Optimize It?

The World Journal of Men's Health
There is a natural balance between the major sex steroids, testosterone and estradiol, controlled by gonadal secretion and peripheral conversion by aromatase.
Arthur L. M. Swislocki, Michael L. Eisenberg   +1 more
doaj   +1 more source

The effect of long-term thyroid-stimulating hormone suppressive therapy on the gonadal steroid hormones of patients with thyroid carcinoma after surgery. [PDF]

Gland Surg, 2017
Liu X, Zhou Y, Liang N, Hong Y, Dionigi G, Sun H.   +5 more
europepmc   +1 more source