Articles tagged with Animal Physiology
Researchers studied muskrats' response to hypothermia, finding no metabolic benefit despite reduced diving heart rate. The study suggests alternative explanations for the muskrat's unique diving abilities.
The CEGS program supports interdisciplinary research in genomics and its applications in understanding human biology and disease. Two new grants will focus on vertebrate diversity and cell signaling, potentially leading to major insights into genome changes that underlie evolution and human biology.
Researchers found that chemicals in detergents, plastics, and medicines can mimic natural estrogens, disrupting the sexual development of juvenile zebrafish. The study suggests that these compounds can affect not only the reproductive capacity but also sex ratios of fish populations.
In big cities like San Francisco, women value men with financial resources, while in smaller cities, emotional connections take precedence. Women's preferences vary by location and city size.
The Rat Resource Research Center (RRRC) will provide a centralized facility for information on available rat strains and a source of animals themselves. This will significantly increase the capacity for researchers to study specific human diseases using rat models, such as cardiovascular and pulmonary disease.
This year, APS awarded several prestigious lectureships to outstanding researchers in physiology. The award winners include Allen Cowley, Pontus Persson, Adrian Morrison, and Albert Bennett, who will present their research on various topics including genomics, cardiovascular function, biomedical ethics, and more.
Researchers at the University of Illinois discovered that estrogen regulates fluid reabsorption in the male reproductive tract by triggering a protein involved in sodium transport. This finding suggests that blocking estrogen receptors could provide a new target for developing effective contraceptives for men.
Researchers investigated how men and women's livers respond differently to chronic ethanol consumption. The study found that female rats' ability to activate protective genes was impaired compared to males, increasing their risk of liver damage when exposed to the same amount of alcohol.
Researchers find that hormonal manipulation has no effect on virus responses in female rodents, suggesting genetic differences may be involved. In contrast, castrated male rats exhibit female-type responses to hantavirus infection.
The study found that estrogen receptors are more widely expressed in the brain during fetal and neonatal periods, influencing brain development. Antisense oligodeoxynucleotide treatment decreased brain estrogen receptor levels, leading to changes in ventilation and body growth in male and female rats.
Researchers identified a small group of neurons responsible for issuing breathing commands within the preBotzinger Complex. Destroying these neurons in rats resulted in irregular breathing patterns and impaired oxygen control, suggesting they hold underlying causes of breathing disorders.
The National Science Foundation has funded a study that sheds light on the soft tissue biology of dinosaurs, specifically their nasal structures. The research, led by Lawrence Witmer, provides clues to how air flowed and affected olfaction and heat exchange in these prehistoric creatures.
Research by Lawrence Witmer reveals that many dinosaurs had large nasal passages, contrary to previous depictions. The study suggests that these passages were positioned closer to the mouths and farther from the eyes, which could have been important for heat exchange and other physiological processes.
The Frontiers in Physiology program provides laboratory research experience to middle- and high-school-level teachers, learning effective education strategies and sharing experiences. Teachers participate in experiments, such as studying Siamese Fighting Fish behavior and exploring factors affecting blood flow and pressure.
The National Institute on Alcoholism and Alcohol Abuse has awarded a $7 million grant to Wake Forest University Baptist Medical Center to study the causes of alcohol addiction. The studies will provide insights into brain processes that lead to alcoholism, with a focus on understanding the fundamental actions of alcohol on the brain.