Researchers have discovered an important step in the activation of juvenile hormone target genes. As butterflies, fruit flies and mosquitoes transform their body structures as they molt from larva to ...

This Collection supports and amplifies research related to SDG 2. The intricate interplay of plant hormones is pivotal in regulating various aspects of plant growth and development, from seed ...

Researchers at the University of Oulu have identified a previously unknown mechanism in humans that may explain why certain medicines and environmental chemicals disrupt the balance of sex hormones.

PNAS is the world's most-cited multidisciplinary scientific serial. It publishes high-impact research reports, commentaries, perspectives, reviews, colloquium papers, and actions of the Academy. In ...

Systemic TH levels are maintained by the classical negative feedback loop involving the hypothalamus-pituitary-thyroid (HPT) axis (Figure 1). Thyrotropin releasing hormone (TRH) is synthesized in the ...

Increased levels of the hormone auxin usually promote cell growth in various plant tissues. Chinese scientists together with researchers from the Institute of Science and Technology Austria (IST ...

The selective estrogen-receptor modulators (SERMs) represent a major therapeutic advance for clinical practice. Unlike estrogens, which are uniformly agonists, and antiestrogens, which are uniformly ...

A fascinating new study, published in the prestigious journal Nature Communications, is shedding light on a previously unknown mechanism by which a hormone released from the gut in the hours after ...

A new UC Davis study shows that a common antibacterial chemical added to bath soaps can alter hormonal activity in rats and in human cells in the laboratory -- and does so by a previously unreported ...

Modern contraceptives have many mechanisms of action; some are combined hormonal contraceptives, some are progestogen-only, while others are intrauterine devices which release either copper or ...

Just as raging hormones are part of the process of a child's maturation through the teen years to adulthood, juvenile hormones, a group of insect isoprenoids, play an important role as butterflies, ...