21 citations
,
January 2017 in “MethodsX” Methanol is better than isopropanol for washing grizzly bear hair to measure cortisol.
25 citations
,
August 2017 in “Frontiers in Zoology” Marine mammals lost many α-keratin genes, aiding their adaptation to aquatic life by becoming hairless.
February 2023 in “Malaysian Journal of Science. Series B, Physical & Earth Sciences” Analyzing bear poop helps measure their stress without harming them.
9 citations
,
August 2020 in “Ecological indicators” Laser ablation ICP-MS is effective for tracking trace elements in polar bear hair over time.
January 2025 in “Conservation Physiology” Bear hair grows 0.10 to 1.05 mm per day, varying by individual and season.
101 citations
,
January 2014 in “Journal of Visualized Experiments” The method effectively measures long-term stress levels using hair samples.
5 citations
,
May 2021 in “Veterinary medicine and science” Injecting cosyntropin into grizzly bears increases blood cortisol but doesn't change hair cortisol levels.
33 citations
,
January 2017 in “Conservation physiology” Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.
March 2017 in “bioRxiv (Cold Spring Harbor Laboratory)” Plant root hair growth is controlled by the hormone auxin, which affects the production of certain oxygen-related molecules through a specific process.
56 citations
,
December 2011 in “The Plant Journal” AGD1 is important for root hair development in Arabidopsis, working with phosphoinositide signaling and the actin cytoskeleton.
20 citations
,
June 2014 in “BMC genomics” Poplar seed hairs grow from the placenta at the ovary base, with endoreduplication playing a key role in their development, and share similar cellulose synthesis processes with cotton fibers.
90 citations
,
July 2014 in “Conservation Physiology” Hair cortisol levels in brown bears can be affected by both long-term and short-term stress.
66 citations
,
May 2014 in “Conservation Physiology” Grizzly and black bears have different stress and hormone responses to salmon availability, influenced by nutrition and social competition.
56 citations
,
April 2019 in “The Plant Journal” Cyclic nucleotide-gated channels are crucial for proper root hair growth and calcium balance in plants.
107 citations
,
April 2014 in “The Plant cell” The CAP1 gene helps control ammonium levels and is necessary for the proper growth of root hairs in Arabidopsis.
October 2025 in “International Journal of Research and Review” Herbal shampoo bars are eco-friendly and beneficial for hair and scalp but need improvements for wider use.
9 citations
,
September 2022 in “Frontiers in Physics” The technique accurately identifies and evaluates hair follicle structures in skin.
28 citations
,
December 2018 in “Plant, cell & environment/Plant, cell and environment” A protein called PLC2 is important for the growth and development of plant roots influenced by auxin.
1 citations
,
March 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” NAC1 controls certain enzymes that reduce root hair growth in Arabidopsis.
21 citations
,
January 2020 in “Conservation Physiology” Hair follicles increase hair cortisol levels, so consistent hair collection methods are important.
26 citations
,
July 2012 in “Endocrine Connections” Mitotane changes steroid breakdown, affecting cortisol availability.
229 citations
,
May 2006 in “Journal of Experimental Botany” Reactive oxygen species are essential for plant root hair growth.
62 citations
,
March 2017 in “Journal of Investigative Dermatology” Mutations in the ACTB gene cause Becker’s nevi and may lead to muscle issues in Becker’s nevus syndrome.
265 citations
,
July 2012 in “Cell” The study found that sweat glands contain different types of stem cells that help with healing and maintaining healthy skin.
321 citations
,
March 2015 in “Nature” Super-enhancers controlled by pioneer factors like SOX9 are crucial for stem cell adaptability and identity.
191 citations
,
September 2011 in “Cell stem cell” Hair follicle stem cells use specific chromatin changes to control their growth and differentiation.
173 citations
,
January 2014 in “Nature Cell Biology” Wnt signaling controls whether hair follicle stem cells stay inactive or regenerate hair.
5 citations
,
January 2025 in “Science Advances” 5α-reductase 2 is crucial for stress response in male rats.
1 citations
,
March 2023 in “Healthcare” Helping PCOS patients focus on hope and control can reduce depression.
85 citations
,
January 2018 in “Cell stem cell” Different signals work together to change gene activity and guide hair follicle stem cells to become specific cell types.