Lactase Persistence, Milk Intake, and Adult Acne: A Mendelian Randomization Study of 20,416 Danish Adults.

Abstract

Whether there is a causal relationship between milk intake and acne is unknown. We tested the hypothesis that genetically determined milk intake is associated with acne in adults using a Mendelian randomization design. LCT-13910 C/T (rs4988235) is associated with lactase persistence (TT/TC) in Northern Europeans. We investigated the association between milk intake, LCT-13910 C/T (rs4988235), and acne in 20,416 adults (age-range: 20⁻96) from The Danish General Suburban Population Study (GESUS). The adjusted observational odds ratio for acne in any milk intake vs. no milk intake was 0.93(95% confidence interval: 0.48⁻1.78) in females and 0.49(0.22⁻1.08) in males aged 20⁻39 years, and 1.15(95% confidence interval: 0.66⁻1.99) in females and 1.02(0.61⁻1.72) in males above 40 years. The unadjusted odds ratio for acne in TT+TC vs. CC was 0.84(0.43⁻1.62) in the age group 20⁻39 years, and 0.99(0.52⁻1.88) above 40 years. We did not find any observational or genetic association between milk intake and acne in our population of adults.

• Authors: Christian R Juhl, Helle K M Bergholdt, Iben M Miller, Gregor B E Jemec, Jørgen K Kanters, Christina Ellervik
• Journal: Nutrients (Nutrients) Vol. 10 Issue 8 (Aug 08 2018) ISSN: 2072-6643 [Electronic] Switzerland
• PMID: 30096803 (Publication Type: Journal Article, Observational Study)

Chemical References

• Lactase

Topics

• Acne Vulgaris (diagnosis, enzymology, epidemiology, genetics)
• Adult
• Aged
• Aged, 80 and over
• Animals
• Cross-Sectional Studies
• Denmark (epidemiology)
• Female
• Genetic Predisposition to Disease
• Humans
• Lactase (genetics, metabolism)
• Male
• Mendelian Randomization Analysis
• Middle Aged
• Milk (adverse effects)
• Phenotype
• Polymorphism, Single Nucleotide
• Risk Factors
• Young Adult