Heather L. Walker

ORCID: 0009-0003-9902-9742
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About
Contact & Profiles
Research Areas
  • Cancer, Lipids, and Metabolism
  • Hormonal and reproductive studies
  • Estrogen and related hormone effects
  • Animal Disease Management and Epidemiology
  • Cholesterol and Lipid Metabolism
  • Cardiovascular Effects of Exercise
  • Legionella and Acanthamoeba research
  • Microbial infections and disease research
  • Menopause: Health Impacts and Treatments
  • Tuberculosis Research and Epidemiology
  • Sports injuries and prevention
  • Injury Epidemiology and Prevention
  • Vibrio bacteria research studies
  • Animal Behavior and Welfare Studies
  • Insect and Pesticide Research
  • Lipoproteins and Cardiovascular Health
  • Diabetes, Cardiovascular Risks, and Lipoproteins
  • Travel-related health issues
  • Paraoxonase enzyme and polymorphisms
  • Antioxidant Activity and Oxidative Stress
  • Lipid metabolism and biosynthesis
  • Hibiscus Plant Research Studies

The Ohio State University
2021-2024

University of Otago
1997-2010

Paraoxonase is an enzyme associated with HDL in human serum that hydrolyzes oxidized phospholipids and inhibits LDL oxidation, which important step atherogenesis. In animals, addition of lipids to the circulation reduces paraoxonase activity, diets rich fat accelerate development atherosclerosis. The current randomized, crossover study was designed compare effect a meal form had been used for deep-frying fast food restaurant control corresponding unused on postprandial (arylesterase)...

10.1161/01.atv.19.5.1340 article EN Arteriosclerosis Thrombosis and Vascular Biology 1999-05-01

Objective The androgenic effect of progestogen, necessary in early postmenopausal hormone replacement therapy (HRT), may adversely affect insulin sensitivity as well body fat distribution and thereby increase the cardiovascular risk profile. impact HRT with sequential combined oral 17β-estradiol norethisterone acetate on composition menopause has not been studied. Design A randomized single blind placebo-controlled 6-month study was carried out. Thirty fit healthy women were enrolled...

10.1097/00042192-200101000-00006 article EN Menopause The Journal of The North American Menopause Society 2001-01-01

With the onset of menopause, plasma lipids and lipoprotein metabolism changes toward a more atherogenic profile that is improved by HRT. To determine whether cholesterol esterification rate (CER) transfer cholesteryl esters from high density lipoproteins to apolipoprotein B-containing are affected menopause HRT, newly synthesized ester (NCET) activity, CER lipids, lipoproteins, concentrations were measured in perimenopausal women (age range: 40–55 yr), including 49 premenopausal 32...

10.1210/jcem.84.10.6022 article EN The Journal of Clinical Endocrinology & Metabolism 1999-10-01

Abstract —Some patients with coronary artery disease experience continued progression of one or more lesions despite treatment drugs that inhibit 3-hydroxy-3-methylglutaryl coenzyme A reductase activity and markedly lower plasma cholesterol levels. We examined relationships between the lipoproteins, in particular intermediate density lipoprotein (IDL) its composition, 38 who had been treated simvastatin for 2 years. Patients were given lipid-lowering dietary advice; 3 months later they...

10.1161/01.atv.18.4.577 article EN Arteriosclerosis Thrombosis and Vascular Biology 1998-04-01

On February 1, 2022, the U.S. Virgin Islands (USVI) Department of Health (VIDOH) was notified a confirmed case Legionnaires disease in an adult resident (Figure).The patient, man aged 55 years, returned to his state residence from leisure travel USVI on January 22 and developed cough, shortness breath, fatigue 23.On 29, he hospitalized for breath received positive SARS-CoV-2 test result at admission.The combination patient's symptoms recent history prompted administration urinary antigen...

10.15585/mmwr.mm7220a5 article EN MMWR Morbidity and Mortality Weekly Report 2023-05-18

In commercial pig farming, sick or injured sows are often treated by producers hired staff. To date, limited quantitative data exists on treatment compliance and the possible effect sow longevity post-treatment. The objective of study was to quantify on-farm selection, frequency, dosage, as well investigate association between body condition scores (BCS) other sow-level factors post-treatment cull risk.On-farm records, including culling reason death up 6 months post-treatment, production...

10.1186/s40813-021-00238-7 article EN cc-by Porcine Health Management 2021-11-25
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