Ka He

ORCID: 0000-0003-1451-3889
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About
Contact & Profiles
Research Areas
  • Nutritional Studies and Diet
  • Magnesium in Health and Disease
  • Fatty Acid Research and Health
  • Heavy Metal Exposure and Toxicity
  • Parathyroid Disorders and Treatments
  • Obesity, Physical Activity, Diet
  • Trace Elements in Health
  • Selenium in Biological Systems
  • Plant Micronutrient Interactions and Effects
  • Mercury impact and mitigation studies
  • Sodium Intake and Health
  • Therapeutic Uses of Natural Elements
  • Vitamin D Research Studies
  • Consumer Attitudes and Food Labeling
  • Carcinogens and Genotoxicity Assessment
  • Arsenic contamination and mitigation
  • Heavy metals in environment
  • Biochemical Analysis and Sensing Techniques
  • Cardiovascular Disease and Adiposity
  • Blood Pressure and Hypertension Studies
  • Antioxidant Activity and Oxidative Stress
  • Birth, Development, and Health
  • Diet, Metabolism, and Disease
  • Regulation of Appetite and Obesity
  • Aluminum toxicity and tolerance in plants and animals

Columbia University
2019-2021

Columbia University Irving Medical Center
2008-2020

Indiana University Bloomington
2012-2019

University of North Carolina at Chapel Hill
2007-2018

University of Missouri
2006-2018

Drexel University
2017-2018

National Institute for Occupational Safety and Health
2018

Centers for Disease Control and Prevention
2013-2018

University of Vermont
2008-2018

Johns Hopkins University
2008-2017

Studies suggest that magnesium intake may be inversely related to risk of hypertension and type 2 diabetes mellitus higher decrease blood triglycerides increase high-density lipoprotein (HDL) cholesterol levels. However, the longitudinal association incidence metabolic syndrome has not been investigated.We prospectively examined relations between incident its components among 4637 Americans, aged 18 30 years, who were free from at baseline. Metabolic was diagnosed according National...

10.1161/circulationaha.105.588327 article EN Circulation 2006-03-28

Human nail clippings are increasingly used in epidemiological studies as biomarkers for assessing diet and environmental exposure to trace elements or other chemical compounds. However, little is known about the growth rate of human nails.To estimate average fingernails toenails examine factors that may influence rate.Twenty-two healthy American young adults marked their nails close proximal fold with a provided file following standardized protocol, recorded date distance from mark. One...

10.1111/j.1468-3083.2009.03426.x article EN Journal of the European Academy of Dermatology and Venereology 2009-09-09

OBJECTIVE To investigate the long-term associations of magnesium intake with incidence diabetes, systemic inflammation, and insulin resistance among young American adults. RESEARCH DESIGN AND METHODS A total 4,497 Americans, aged 18–30 years, who had no diabetes at baseline, were prospectively examined for incident based on quintiles intake. We also investigated between inflammatory markers, i.e., high-sensitivity C-reactive protein (hs-CRP), interleukin-6 (IL-6), fibrinogen, homeostasis...

10.2337/dc10-0994 article EN cc-by-nc-nd Diabetes Care 2010-08-31

Findings from short-term randomized trials indicate that dietary supplements of omega-3 polyunsaturated fatty acids (PFA) lower blood pressure hypertensive persons, but effect size in nonhypertensive individuals is small and nonsignificant. Data are lacking on food PFA general populations. The International Study Macro- Micro-nutrients Blood Pressure (INTERMAP) an international cross-sectional epidemiologic study 4680 men women ages 40 to 59 17 population-based samples China, Japan, United...

10.1161/hypertensionaha.107.090720 article EN Hypertension 2007-06-05

<h3>Abstract</h3> <b>Objective</b> To examine the association between intake of total fat, specific types and cholesterol risk stroke in men. <b>Design setting</b> Health professional follow up study with 14 year up. <b>Participants</b> 43 732 men aged 40–75 years who were free from cardiovascular diseases diabetes 1986. <b>Main outcome measure</b> Relative ischaemic haemorrhagic according to cholesterol, fat. <b>Results</b> During 725 cases occurred, including 455 strokes, 125 stokes, 145...

10.1136/bmj.327.7418.777 article EN BMJ 2003-10-02

Recent randomized data suggest that calcium supplements may be associated with increased risk of cardiovascular disease (CVD) events. Using a longitudinal cohort study, we assessed the association between intake, from both foods and supplements, atherosclerosis, as measured by coronary artery calcification (CAC).We studied 5448 adults free clinically diagnosed CVD (52% female; aged 45-84 years) Multi-Ethnic Study Atherosclerosis. Baseline total intake was diet (using food frequency...

10.1161/jaha.116.003815 article EN cc-by-nc-nd Journal of the American Heart Association 2016-10-03

After the phase-out of polybrominated diphenyl ethers (PBDEs), use alternative flame retardants (AFRs), such as FireMaster 550, and organophosphate esters (OPEs) has increased. However, little is known about human exposure to these chemicals. This lack biomonitoring studies partially due absence reliable noninvasive biomarkers exposure. Human hair nails can provide integrated measurements, such, matrices potentially be used retardants. Paired hair, fingernail, toenail, serum samples obtained...

10.1021/acs.est.5b05073 article EN Environmental Science & Technology 2016-03-01

Animal studies indicate that monosodium glutamate (MSG) can induce hypothalamic lesions and leptin resistance, possibly influencing energy balance, leading to overweight. This study examines the association between MSG intake overweight in humans. We conducted a cross-sectional involving 752 healthy Chinese (48.7% women), aged 40-59 years, randomly sampled from three rural villages north south China. The great majority of participants prepared their foods at home, without use commercially...

10.1038/oby.2008.274 article EN Obesity 2008-05-22

Laboratory studies suggest that exposure to methylmercury at a level similar those found in fish may induce pancreatic islet β-cell dysfunction. Few, if any, human have examined the association between mercury and diabetes incidence. We whether toenail levels are associated with incidence of large prospective cohort. RESEACH DESIGN AND METHODS: A cohort 3,875 American young adults, aged 20-32 years, free 1987 (baseline), were enrolled followed six times until 2005. Baseline measured...

10.2337/dc12-1842 article EN cc-by-nc-nd Diabetes Care 2013-02-20
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