71 citations
,
January 2016 in “International Journal of Trichology” This study found that 38% of women with hair loss had a biotin deficiency, suggesting oral biotin supplementation should be based on confirmed biotin deficiency rather than as a general treatment.
98 citations
,
October 2012 in “Dermatologic Clinics” This article reviews the impact of nutritional deficiencies on hair health, detailing how they can cause structural abnormalities, pigmentation changes, or hair loss; it presents no new clinical findings.
12 citations
,
September 2011 in “BMJ Case Reports” This case report describes a 2-month-old male with biotinidase deficiency whose seizures and skin symptoms improved dramatically with oral biotin supplementation.
21 citations
,
June 2011 in “Journal of child neurology” This study found that while serum zinc levels were lower in children treated with valproic acid or carbamazepine than in healthy controls, zinc, biotin, and biotinidase enzyme activity remained within normal ranges and unaffected by these treatments.
70 citations
,
June 2010 in “Clinics in Dermatology” This review discusses how changes in hair and skin may indicate underlying vitamin deficiencies and emphasizes the need to identify populations at risk for these deficiencies; it reports no new results.
166 citations
,
November 2008 in “Expert Review of Endocrinology & Metabolism” This review discusses biotin and biotinidase deficiencies, their symptoms, and methods of medical management, without presenting new clinical findings.
49 citations
,
April 2007 in “Pediatric Dermatology” This study describes a family with uncombable hair syndrome, suggesting autosomal dominant inheritance, and reports that oral biotin improved hair appearance in two young patients.
43 citations
,
April 2005 in “The Journal of Dermatology” This case report describes a 5-month-old Japanese infant with biotin deficiency, where daily oral biotin supplementation led to significant improvements in skin conditions and hair growth.
239 citations
,
July 2002 in “Clinical and Experimental Dermatology” This review explores the role of nutritional factors in hair loss, noting that iron and l-lysine supplementation may benefit some individuals, while excessive supplements can lead to hair shedding.
31 citations
,
December 1997 in “Developmental Medicine & Child Neurology” This case report describes a 5-year-old girl with biotinidase deficiency who had acute visual loss and gait disturbance but no typical symptoms, responding well to biotin therapy.
22 citations
,
January 1996 in “Archives of Dermatological Research” 4 citations
,
December 1995 in “Archives of Dermatological Research” 9 citations
,
December 1987 in “Archives of Dermatology” This study highlights two newly discovered metabolic disorders of biotin, showing distinct skin and hair symptoms and severe complications like acidosis and ketosis.
55 citations
,
December 1987 in “Archives of Dermatology” This review discusses two genetic disorders affecting biotin metabolism, each resulting in distinctive skin and hair manifestations, and outlines the associated serious metabolic complications.
101 citations
,
July 1985 in “Journal of the American Academy of Dermatology” In this study, oral biotin improved hair growth, strength, and combability in a child with uncombable hair syndrome, while hair in two others slowly improved without biotin.
33 citations
,
December 1982 in “Developmental Medicine & Child Neurology” The authors reviewed cases of six children with both hair-shaft abnormalities and neurological disorders, noting that such hair defects may indicate neurological conditions, including potentially treatable metabolic errors.
