Uma revisão sistemática e metanálise sobre a associação entre alopecia androgenética e o risco de síndrome metabólica / A systematic review and meta-analysis on the association between androgenic alopecia and the risk of metabolic syndrome

Este estudo conduziu uma revisão sistemática de estudos sobre a relação entre alopecia androgênica e síndrome metabólica. Realizamos uma revisão abrangente de bancos de dados, incluindo PubMed, Web of Knowledge, Google Scholar, Scopus e Embase, e extraímos artigos relevantes publicados de 2010 a 2018. Os relatos de caso, artigos de revisão ou artigos sem textos completos foram excluídos. Nove estudos foram examinados para a etapa de metanálise. Os resultados mostraram uma relação significativa entre alopecia e síndrome metabólica (OR = 2,81; IC 95% = 2,16-3,66; I2 = 73%; P = 0,0003). Existe uma correlação significativa entre a alopecia androgênica e a síndrome metabólica.

This study conducted a systematic review of studies on the relationship between androgenic alopecia and metabolic syndrome. We performed a comprehensive review of databases including PubMed, Web of Knowledge, Google Scholar, Scopus, and Embase, and extracted relevant articles published from 2010 to 2018. The case reports, review articles, or studies lacking full-text articles were excluded. We examined nine studies for the meta-analysis step. The results showed a significant relationship between alopecia and metabolic syndrome (OR = 2.81; CI 95% = 2.16-3.66; I2 = 73%; P = 0.0003). There is a significant correlation between androgenic alopecia and metabolic syndrome

The effectiveness of adding low-level light therapy to minoxidil 5% solution in the treatment of patients with androgenetic alopecia

Background: Androgenetic alopecia is the commonest type of alopecia affecting over half of men and women. Low-level light therapy is a new technique for stimulating hair growth in both genders. Aims: To overcome the shortcomings of previous epidemiological studies and a lack of controlled clinical trials on the subject, this study compared the effectiveness of adding low-level light therapy to minoxidil topical solution in the treatment of androgenetic alopecia in patients presenting to two skin clinics in Isfahan, Iran during 2014–2015. Materials and Methods: This clinical trial included 50 patients aged 17–45 presenting to Khorshid and Alzahra educational centers and skin diseases research center for androgenetic alopecia during 2014–2015. The patients were randomly divided into a control and a case group. The case group received topical minoxidil 5% solution plus low-level light therapy twice per day. The control group was given the same topical solution and a laser comb system that was turned off to act as a placebo. Changes in patients' hair density and diameter and its overall regrowth as well as their satisfaction with the treatment were assessed at months 0 (baseline), 3, 6, 9 and 12. Results: The percentage of recovery from androgenetic alopecia and the patients' satisfaction with their treatment were significantly higher in the case group compared to the control group. The patients' mean hair density and diameter were found to be higher in the case group after the intervention compared to the control group. Limitations: The study limitations included patient compliance, small sample size, patient insight due to novelty of the method and clinical judgement. Conclusion: As a new method of treatment, low-level light therapy can help improve the percentage of recovery from androgenetic alopecia and increase patients' satisfaction with their treatment.