Results 81 to 90 of about 362,441 (313)

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Measuring high-altitude adaptation [PDF]

, 2017
High altitudes (>8,000 ft or 2,500 m) provide an experiment of nature for measuring adaptation and the physiological processes involved. Studies conducted over the past ~25 years in Andeans, Tibetans, and, less often, Ethiopians show varied but ...
Lorna G. Moore
core   +1 more source

Molecular and genetic mechanisms of physiological adaptations in high- altitude natives Molecular and genetic mechanisms of physiological adaptations in high- altitude natives [PDF]

فصلنامه ابن سینا, 2019
Physiological properties of adaptation to chronic hypoxia can help the high-altitude natives to overcome oxygen limitations. The protective effects of high altitudes have also been confirmed in experimental studies using the hypobaric chamber.
Abolfazl Khademi, Zahra Jahanbakhsh, Mitra Yousefpour, Afsaneh Karami Juyani   +3 more
doaj  

Phosphoinositides and inositol phosphates as molecular glues

FEBS Letters, EarlyView.
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry, Alexander J. Cutright, Mong Na Claire Loi, Jessica Martin, Joseph W. Gilligan, Jakub N. Kubina, Michael J. Arambula, Susanna Tanada Palmu, Daniella Zhou, Raymond D. Blind   +9 more
wiley   +1 more source

Phytoplankton adaptation to marine ecosystems: insights into photophysiological functional diversity [PDF]

, 2011
The aim of this study was to investigate the diversity of the photoprotective responses activated by phytoplankton at short temporal scales, i.e. the non-photochemical quenching of Chl a fluorescence (NPQ) associated with the xanthophyll cycle (XC ...
Giovagnetti, Vasco
core  

Cross Adaptation - Heat and Cold Adaptation to Improve Physiological and Cellular Responses to Hypoxia [PDF]

, 2017
To prepare for extremes of heat, cold or low partial pressures of O2, humans can undertake a period of acclimation or acclimatization to induce environment specific adaptations e.g.
Watt, Peter, Lee Taylor, Peter W. Watt, Gibson, Oliver, Watt, Peter; id_orcid, Taylor, Lee, Oliver R. Gibson, Neil S. Maxwell, Maxwell, Neil, Maxwell, Neil; id_orcid   +9 more
core   +4 more sources

Physiological and genomic evidence that selection on the transcription factor Epas1 has altered cardiovascular function in high-altitude deer mice.

PLoS Genetics, 2019
Evolutionary adaptation to extreme environments often requires coordinated changes in multiple intersecting physiological pathways, but how such multi-trait adaptation occurs remains unresolved.
Rena M Schweizer, Jonathan P Velotta, Catherine M Ivy, Matthew R Jones, Sarah M Muir, Gideon S Bradburd, Jay F Storz, Graham R Scott, Zachary A Cheviron   +8 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

The physiological and behavioural responses of sheep exposed to heat load within intensive sheep industries [PDF]

, 2006
The live export and feedlotting industries are the major intensive sheep industries in Australia. During live shipment, sheep are exposed to prolonged periods of high heat and humidity, with little relief for several days, while environmental conditions ...
Stockman, Catherine Ann
core   +1 more source

Physiological and biochemical changes in human spaceflights [PDF]

فصلنامه ابن سینا, 2017
At the moment, a variety of disasters including climate changes and meteorite fall threaten human society on the earth. So, scientists believe that it is important to explore viable alternative planets in the Solar System to ensure survival of the human ...
M Panjehpour, A Ghasemi
doaj