The effect of aging on the rate of linear nail growth.

doi:10.1111/1523-1747.EP12532799

Paper

The effect of aging on the rate of linear nail growth.

Published Jul 1, 1979 · Norman Orentreich, Jules Markofsky, J. Vogelman

The Journal of investigative dermatology

Q1 SJR score

98

Citations

2

Influential Citations

Full text

Semantic Scholar

Abstract

The linear nail growth rate is a simple, inexpensive, noninvasive technique for the measurement of aging. When the many endogenous and exogenous factors known to influence this rate are either controlled or considered, the measurement of the rate for 1 year gives data that are both age-related and age-caused. The rate of linear nail growth decreases 50% over the life spans of both dogs and humans. In the beagle, which has a life span 20% that of man, the rate of decrease is 5 times faster than in man. There are circadian and multiple-year biorhythms of the rate of linear nail growth. There are approximately 7-yr periods of slow decline that alternate with 7-yr periods of more rapid decline.

Highly Cited

Study Snapshot

Key takeawayAging reduces linear nail growth rate by 50% in dogs and humans, with beagles showing a 5 times faster decline than humans.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

Sign up to use Study Snapshot

Consensus is limited without an account. Create an account or sign in to get more searches and use the Study Snapshot.

Create an account

Paper

The effect of aging on the rate of linear nail growth.

Sign up to use Study Snapshot

References

Nail growth: 30 years of observation.

The average daily rate of growth of my thumbnail has varied from 0.123 mm per day when I was 32 to 0.100 mm when I was 61, with infections slowing the rate of growth.

The Nails in Disease

This book provides a valuable introduction to atomic absorption spectrometry, offering clear, well-organized information for working analysts.

FINGERNAIL GROWTH IN IDIOPATHIC AND PSORIATIC ONYCHOLYSIS

Idiopathic onycholysis is not "pre-psoriatic" as previously thought, as fingernail growth in uninvolved patients is significantly faster than in psoriatic patients.

THE EFFECT OF METHOTREXATE, CORTICOSTEROIDS AND AZATHIOPRINE ON FINGERNAIL GROWTH IN PSORIASIS

Methotrexate effectively suppresses fingernail growth in psoriatic patients, while azathioprine shows a less marked decrease and corticosteroids show no effect.

FINGERNAIL GROWTH IN NORMAL AND PSORIATIC SUBJECTS

Nails with pitting in psoriatic patients grow faster than normal ones, with middle finger nails growing more quickly than others, and right hand nails growing faster than left hand ones.

Citations