5 citations
,
October 2011 in “Small ruminant research” Goat hair growth and follicle activity change with the seasons and differ between males and females.
85 citations
,
May 2019 in “Journal of neuroendocrinology” The article concludes that better understanding gene regulation related to seasonal changes can offer insights into the mechanisms of seasonal timing in mammals.
220 citations
,
August 1988 in “Clinical endocrinology” Melatonin may help with sleep issues, depression, and cancer, but more research is needed.
98 citations
,
April 2007 in “Seminars in Cell & Developmental Biology” Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.
60 citations
,
April 2012 in “Physiology” The document concludes that understanding hair and feather regeneration can help develop new regenerative medicine strategies.
January 2021 in “Journal of clinical and cosmetic dermatology” Human skin responds to light with protective mechanisms, but more research is needed to understand these processes and their implications for health and therapy.
10 citations
,
April 1995 in “Animal Science/Animal science” Melatonin implants can change the seasonal prolactin levels and hair growth in adult cashmere goats but not in juveniles, and don't delay spring moult for better fiber harvesting.
11 citations
,
April 2013 in “SpringerPlus” Human skin's melanocytes respond to light by changing shape, producing pigments and hormones, which may affect sleep patterns.
109 citations
,
October 2007 in “Journal of pineal research” Melatonin helps regulate hair growth and protects the hair follicle from stress.
90 citations
,
October 1998 in “Animal Reproduction Science” Mouflon rams mature gradually with changes in body, horns, and hormones linked to age and seasons, reaching full sexual maturity well after puberty.
47 citations
,
May 1999 in “Reproduction” Goat reproductive activity and coat growth are affected by light and temperature, with temperature altering prolactin levels and hair growth, but not melatonin or estrus onset.
9 citations
,
November 2007 in “Veterinary dermatology” Boxer and Labrador dogs' hair growth is affected by the tropical climate, but Schnauzers' is not.
51 citations
,
May 2004 in “Domestic animal endocrinology” Melatonin implants and long daylight hours alter the timing of hormone release and hair growth in mouflon sheep.
10 citations
,
January 2009 in “Elsevier eBooks” Hair growth is influenced by hormones and goes through different phases; androgens can both promote and inhibit hair growth depending on the body area.
55 citations
,
March 2010 in “Aging” Circadian clock genes are important for hair growth and may affect aging-related hair loss and graying.
May 2018 in “Journal of Investigative Dermatology” Sensitive scalp has higher pH, more redness, abnormal sebum, and altered bacterial makeup.
May 2018 in “Journal of Investigative Dermatology” Light can activate hair growth through a pathway from the eyes to hair follicles.
May 2018 in “Journal of Investigative Dermatology” STIM1 is essential for sweat secretion.
May 2018 in “Journal of Investigative Dermatology” People with alopecia areata have higher levels of a heart disease marker in their blood.
May 2018 in “Journal of Investigative Dermatology” Researchers found a substance in chicken egg yolk that helps hair grow.
May 2018 in “Journal of Investigative Dermatology” The keratin network in mouse skin changes during cornification and affects the skin's protective barrier.
January 1963 in “Stain technology” Ziehl-Neelsen's stain helps identify different parts of hair in sheep and goats.
209 citations
,
September 2008 in “Dermatologic Therapy” Androgens can both increase and decrease hair growth in different parts of the body.
32 citations
,
May 2018 in “Cell Cycle” Melatonin helps Cashmere goats grow more hair by affecting certain genes and cell pathways.
2 citations
,
April 2002 in “Animal Science/Animal science” Melatonin treatment speeds up fur maturation and changes the hair growth cycle in young chinchillas.
20 citations
,
February 2004 in “Veterinary dermatology” Dog hair grows back in about 14 weeks after being clipped for surgery, and the season doesn't really affect this growth rate.
10 citations
,
November 2006 in “Small ruminant research” Melatonin treatment may increase cashmere production in Spanish goats.
August 2021 Researchers found a genetic link for hereditary hair loss but need more analysis to identify the exact gene.
April 2020 in “Arquivo Brasileiro De Medicina Veterinaria E Zootecnia” A horse in Brazil had seasonal hair loss possibly linked to light exposure and melatonin levels.
16 citations
,
December 2006 in “Expert Review of Dermatology” Hair follicles are essential for skin health, aiding in hair growth, wound healing, and immune function.