October 2025 in “Open Repository of the University of Porto (University of Porto)” Pharmacists play a crucial role in health literacy and patient care.
Clinical signs don't match inflammation levels in lichen planopilaris and frontal fibrosing alopecia.
10 citations
,
July 2021 in “European journal of pharmaceutics and biopharmaceutics” Nanoparticles sized between 470 and 750 nm are best for delivering substances like caffeine into hair follicles for absorption.
4 citations
,
July 2023 in “Pharmaceutics (Basel)” Nanoparticle-based drug delivery to hair follicles is more effective when tested under conditions that match skin behavior.
1 citations
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January 2017 in “Yonsei Medical Journal” Hair is thinner near the scalp in acute hair shedding conditions.
7 citations
,
January 2009 in “Immunological investigations” A 3-year-old boy lost all his hair due to a rare reaction to phenobarbital, but it grew back after steroid treatment.
9 citations
,
July 2008 in “Archives of Dermatological Research” 36 citations
,
January 1994 in “Cell and Tissue Research” 31 citations
,
September 1996 in “Differentiation” The upper dermal sheath can regenerate hair in rats.
The inner root sheath in hair follicles plays a key role in hair growth and health.
34 citations
,
July 1958 in “Biochimica et Biophysica Acta” 135 citations
,
November 1987 in “Differentiation” Outer root sheath cells consistently express certain keratins influenced by their environment.
62 citations
,
June 1993 in “Archives of Dermatological Research” 61 citations
,
August 1993 in “PubMed” Basal cell epithelioma likely starts from the hair follicle's outer root sheath.
26 citations
,
January 1964 in “Experimental Cell Research” 14 citations
,
April 1995 in “Transplantation” Human hair follicle cells can be used to help heal and replace skin.
31 citations
,
December 2010 in “Journal of the American Academy of Dermatology” Loose anagen hair syndrome is caused by structural abnormalities in the hair follicle's inner root sheath.
59 citations
,
August 1981 in “PubMed” Trichilemmal keratinization is a unique process in hair follicles where the outer root sheath turns into keratin without a specific layer.
20 citations
,
September 2004 in “Journal of Anatomy” The inner root sheath evolved to help hair grow safely through the skin in mammals.
6 citations
,
December 1990 in “PubMed” Keratinocytes in hair follicles differentiate similarly to skin cells, with specific patterns in different regions.
March 2026 in “Journal of Bioscience and Bioengineering” Oxytocin from hair cells helps hair growth and stem cell increase.
2 citations
,
October 2023 in “Science advances” Touching hair can activate nearby nerve cells through signals from the hair's outer layer.
12 citations
,
July 2019 in “Veterinary Dermatology” Nestin-expressing progenitor cells become outer root sheath keratinocytes.
13 citations
,
January 2002 in “Biochemical and biophysical research communications” Interferon β from hair cells stops the growth of other hair cells.
3 citations
,
October 1994 in “Journal of Dermatological Science” The new antibody, TYHF-1, specifically targets certain hair-related structures.
93 citations
,
July 2006 in “Journal of Investigative Dermatology” K25, K27, and K28 are found in all inner root sheath layers of hair, while K26 is only in the cuticle.
7 citations
,
September 2019 in “Journal of Investigative Dermatology” 13 citations
,
February 2007 in “Biotechnology and Bioprocess Engineering” 44 citations
,
August 1990 in “PubMed” Keratins K1 and K10 are found in the inner root sheath and cuticle of human hair follicles.