Fish and crustacean biodiversity in an outer maritime estuary of the Pearl River Delta revealed by environmental DNA.

Understanding the faunal community structure in the estuary would be crucial in assessing the health of the ecosystem. The poor visibility in the estuarine area due to the outflow from the Pearl River hinders the conventional visual census in assessing the megafaunal biodiversity. In this study, the fish and crustacean biodiversity of Hong Kong's western waters, i.

Comorbidity of dementia and age-related macular degeneration calls for clinical awareness: a meta-analysis.

Aim: To determine the association between dementia and age-related macular degeneration (AMD) using meta-analysis.

Methods: We searched in the MEDLINE, EMBASE, Web of Knowledge, PsycInfo and Cochrane database of systematic reviews for studies published from March 1959 to March 2018. We included cross-sectional, case-control and cohort studies that evaluated the association of dementia/Alzheimer's disease (AD) with AMD (as outcome) and the association of AMD with dementia/AD (as outcome).

The effect of Chinese martial arts Tai Chi Chuan on prevention of osteoporosis: A systematic review.

Background/objective: Tai Chi Chuan (TCC) is suggested to have beneficial effects on the musculoskeletal system. The aim of this systematic review is to evaluate the evidence of the effect of TCC on bone mineral density (BMD) and its potential for prevention of osteoporosis.

Methods: A literature search was conducted using PubMed, Embase, and Cochrane databases from inception to January 2017.