Inheritance of Hypertrichosis Pinnae Auris-A Review of Literature
Journal Title: Journal of Clinical and Diagnostic Research - Year 2018, Vol 12, Issue 3
Abstract
ABSTRACT Hypertrichosis is an excessive growth of hair on a particular area of the body which is abnormal for the age, sex or race of an individual. The presence of the excessive coarse black hair on the auricle of the human ear is referred to as hypertrichosis pinnae auris or hairy ears. The condition is primarily restricted to older men and occasionally observed in females. According to the available literature, hypertrichosis pinnae auris is a Y-linked character. A number of studies have shown that the inheritance of the trait is from father to the son, any exceptions can be attributed to the lack of penetrance of the gene or crossing over from Y to X chromosome. A few researchers have suggested the probability of it being inherited in an autosomal manner. The mode of inheritance of the trait thus, remains controversial as to whether it is Y-linked or autosomal or perhaps both. The present article reviews various available studies on hypertrichosis pinnae auris in different populations of the world. It further deliberates on different aspects of the modes of inheritance of hypertrichosis pinnae auris and discusses the contradictions in its inheritance. The understanding of this area of research is significant for studying morphological variations and their genetic basis, sex differences among individuals and populations together with intergroup differences involving anthropology, anatomy, comparative morphology, personal identification and human genetics.
Authors and Affiliations
Neha Baryah, Kewal Krishan, Sanjeev Puri, Tanuj Kanchan
Molecular Mechanisms of Antifungal Drug Resistance in Candida Species
ABSTRACT Invasive Candidal infections have emerged as one of the major threats to the world. Although, many new antifungal drugs have been developed in the recent years, the emergence of drug resistance has become a majo...
Floating Canine in Maxillary Sinus – Case Report and Overview of Pathogenetic Literature
ABSTRACT The eruption of tooth other than the alveolar arch is called Ectopic Tooth. It is frequently encountered in the maxillary sinus. Facial pain is the most common presentation which is commonly misdiagnosed as chro...
Cystic Sertoli-Leydig Cell Tumour in a Postmenopausal Woman with Absent Virilising Symptoms: A Diagnostic Challenge
A 60-year-old postmenopausal woman, presented with a left ovarian cystic mass with mildly elevated CA125 levels. An intraoperative frozen section showed oedematous ovarian stroma with interspersed large aggregates of spi...
A Comparative Study of High Sensitivity C-Reactive Protein and Metabolic Variables in Type 2 Diabetes Mellitus with and without Nephropathy
Introduction: Diabetic nephropathy is a serious chronic complication of Type 2 Diabetes Mellitus (T2DM) which impairs the quality of life, leading to increased morbidity and mortality. The high sensitivity C-reactive pro...
Internet Technology based Research for Smoking Cessation in India-Hope of a New Era
Abstract Tobacco smoking has been a rampant problem in India since decades. It poses a great burden on the socioeconomic life of the individuals and affects country’s progress. Burden of smoking had been on a rise in Ind...