32 citations
,
December 1969 in “The Lancet” Children with marasmus have more resting hair follicles and thinner, less pigmented hair, showing long-term malnutrition.
26 citations
,
September 1999 in “Canadian Journal of Botany” The RHD4 gene is crucial for consistent root hair growth in Arabidopsis thaliana.
9 citations
,
January 2014 in “Journal of analytical & bioanalytical techniques” The study did not conclude whether hair can reliably indicate kidney stones, cholelithiasis, hypertension, or diabetes.
38 citations
,
October 1988 in “Clinics in Dermatology” Hormones, nutrition, and seasonal changes regulate hair growth cycles, with androgens extending growth phases and factors like aging and malnutrition affecting hair loss and thinning.
1 citations
,
January 2021 in “Pakistan journal of zoology” Red fox, golden jackal, and gray wolf hairs have similar features but differ in length, thickness, and inner structure.
1 citations
,
January 1996 Cysteine and arginine are essential for hair growth and thickness.
March 2026 in “Current Bioactive Compounds” Plumbago europaea root extract may help regrow hair.
48 citations
,
February 2010 in “Molecular biology reports” KAP7.1 and KAP8.2 genes are crucial for cashmere quality in goats.
3 citations
,
August 2022 in “Molecules/Molecules online/Molecules annual” A new strain of bacteria from the human skin can help prevent hair loss.
June 2026 in “Frontiers in Cell and Developmental Biology” This study used single-cell RNA sequencing on skin tissues from six fine-wool sheep to explore the molecular mechanisms regulating hair follicle development and fiber diameter. A transcriptional atlas of the hair follicle microenvironment was constructed, identifying 14 distinct cell types and revealing that the ultra-fine wool group had a higher proportion of dermal papilla cells (DPCs), hair follicle stem cells, and outer root sheath cells. The study highlighted the role of DPCs in hair follicle growth, identifying three distinct states of DPCs and analyzing differentially expressed genes, such as CRABP1, which influences DPC proliferation. These findings provide insights into hair follicle biology and potential molecular targets for breeding ultra-fine wool sheep.
20 citations
,
November 1968 in “The Lancet” Potassium levels affect blood sugar and insulin during dialysis, and malnutrition changes children's hair roots.
KRTAP6 genes affect wool quality in sheep.
46 citations
,
April 1971 in “American Journal of Clinical Nutrition” Lack of protein causes hair root damage, but it can be reversed by eating protein again.
2 citations
,
July 2023 in “Agronomy” Melatonin helps wheat plants resist drought by improving their root and root hair growth.
131 citations
,
January 2018 in “Scientific Reports” Mycorrhiza helps trifoliate orange grow better roots and handle drought.
62 citations
,
February 2018 in “Scientia Horticulturae” Mycorrhizal fungi improve root hair growth and nutrient uptake in trifoliate orange, especially when phosphorus is low.
September 2001 in “PubMed” The new X-ray technique allows for precise and non-destructive measurement of elements in hair, creating the first database of its kind for a specific ethnic group.
47 citations
,
July 1967 in “Science” Not eating enough protein can cause hair roots to shrink and lose color, and hair to become thinner.
13 citations
,
August 1995 in “Australasian Journal of Dermatology” Hair follicles are smaller in people with androgenetic alopecia compared to those with normal scalps.
6 citations
,
July 2022 in “World journal of stem cells” Using extracellular vesicles from stem cells can help hair grow by affecting scalp cells and hair follicles.
24 citations
,
December 1957 in “Experimental Cell Research” The glassy layer of hair follicles has different fibril sizes and arrangements in guinea pigs and young mice.
87 citations
,
April 2018 in “Biochemical and Biophysical Research Communications” Exosomes from dermal papilla cells can help grow hair and might treat hair loss.
8 citations
,
July 2004 in “Journal of morphology” Marsupial hair structure and keratin distribution are similar to placental mammals.
January 2019 in “Journal of Entomology and Zoology Studies” Ruminant goats have larger and more defined hair follicles than younger goats.
7 citations
,
January 2020 in “International Journal of Trichology” Coconut oil reduces hair damage and breakage more effectively than shampoos and conditioners.
1 citations
,
March 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” The hair treatment made hair grow faster and thicker and strengthened the hair roots.
September 2023 in “Medical lasers” The botanical shampoo with Morus alba root extract is safe and effective for treating hair loss.
October 2024 in “Bangladesh Journal of Botany” Figleaf gourd is more resistant to cinnamic acid stress than cucumber.
January 2023 in “Sovremennye problemy nauki i obrazovaniâ” Miliacin may help prevent hair loss and improve hair growth in mice with a condition similar to human baldness.
January 2014 in “Journal of the Korean Society of Design Culture” The study confirmed that changes in hair structure in women with hair loss conditions matched what is taught in beauty college trichology courses.