A New Locus for Hereditary Hypotrichosis Simplex Maps to Chromosome 13q12.12-12.3 in a Chinese Family

May 2010 in “ Journal of Cutaneous Pathology ”

Chao Xu, Li Zhang, Nan Chen, Bai-Horng Su, Chuyue Pan, Junyan Li, Guowei Zhang, Zhi Li, Sheng Yan, Huai‐Dong Song

hereditary hypotrichosis simplex HHS nonsyndromic alopecia chromosome 13q12.12~12.3 genetic locus genome-wide screening linkage analysis candidate genes hereditary hair loss genetic hair loss

TLDR A new genetic area linked to a rare hair loss condition was found on chromosome 13 in a Chinese family.

In 2010, a study involving a four-generation Chinese family with 30 individuals, including 14 affected by hereditary hypotrichosis simplex (HHS), identified a new genetic locus for this rare form of nonsyndromic alopecia on chromosome 13q12.12~12.3. The researchers used genome-wide screening and linkage analysis to map the disease-causing gene, narrowing it down to a 9.57 cM region. Although no disease-causing mutations were found in the candidate genes, the discovery of the new locus is significant for understanding the genetic basis of hair growth and could inform future research on common hair loss conditions. The study was supported by Chinese foundations and the National Natural Science Foundation of China.

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