The review article explores how extrafollicular environments regulate hair and feather stem cell activities, as well as the role of stem cells in shaping organ forms. Researchers hope to apply this knowledge to develop regenerative medicine techniques for repairing damaged tissues, including fingers and toes.
A team of researchers at RUB discovered how the human nose distinguishes between similar smells by analyzing the 3D structure of olfactory receptors and hydrogen bridge patterns. They found a specific pattern of chemical bonds that account for the specificity of olfactory sensors.
A study of 300 post-menopausal women found that obesity was associated with improved cognitive performance, particularly in memory and language tasks. The researchers propose that estrogen released from fat cells may play a protective role in preserving cognition.
Researchers studied two butterfly species, finding that genetic variables affect their ability to relocate due to global warming. The study suggests that some species may be more adapted to warmer temperatures than others.
A new nonsteroidal therapy, IGFBP-3, has significantly decreased disease signs of asthma in mice by inhibiting the NF-kB inflammatory pathway. This could lead to a new alternative therapy for patients resistant to current steroid treatments.
The American Physiological Society has awarded $68,000 in travel fellowships to 40 underrepresented minority students and scientists to attend the Experimental Biology conference. The program aims to encourage more students from minority groups to become scientists.
A new study shows that aerobic exercise affects the release of two key appetite hormones, ghrelin and peptide YY, more effectively than non-aerobic exercise. Aerobic exercise suppresses hunger by decreasing ghrelin levels and increasing peptide YY levels, leading to a greater suppression of hunger compared to weight lifting.
Researchers at NIST and NIH have demonstrated proof of principle for a new approach to MRI using customized microscopic magnets that can be injected into the body. These 'smart tags' can identify particular cells, tissues, or physiological conditions by emitting specific optical colors.
Physiologists investigate nanoparticles' potential to cause diseases like atherosclerosis and kidney stones. Researchers are exploring how nanoparticles interact with cells and tissues to understand their role in these conditions.
A study found that severe asthma is characterized by air trapping and incomplete reversibility with bronchodilator treatment. This suggests a distinct physiological difference between severe and non-severe asthma, potentially leading to new treatment approaches.
Granger received the award for his research on preeclampsia, a pregnancy-related disease affecting nearly 5-7 percent of U.S. pregnancies. He has also improved graduate education at the University of Mississippi Medical Center.
The American Physiological Society awarded $47,000 travel fellowships to 38 underrepresented minority students and scientists for the 2007 Experimental Biology conference. The program aims to encourage more students from diverse groups to pursue careers in science.
Researchers found a significant circadian rhythm in swim performance, with athletes performing better in the evening and worse in the morning. The study's results suggest that a circadian rhythm affects athletic performance, with peak performance occurring at 11pm.
Researchers studied emperor penguin breeding habits to understand how they conserve energy in extreme cold. The study found that deep body temperatures decrease during huddling, but core temperature remains constant, suggesting a trade-off between egg incubation and energy savings.
Two young scientists, Matthew R. Jones and Takuya Sakaguchi, have been awarded the APS Postdoctoral Fellowship to investigate the roles of Interleukin-6 in pneumonia infections and liver organogenesis, respectively. The fellowship aims to advance understanding of physiological genomics by integrating cellular and molecular biology.
The study provides anatomical evidence of nanometer-sized particles in calcified human arterial and valvular tissue, which share characteristics with nanoparticles recovered from geological specimens. The cultured particles contain nucleic acids, suggesting ongoing synthesis and potential bacterial-like etiology of vascular calcification.
Dr. Barbara Block, a MacArthur Award winner, will present the Scholander Award for outstanding research on comparative physiology. The award recognizes her work on tuna migration patterns using satellite-based tagging technology, which has implications for preserving tuna species and managing fisheries.