Walker Jf

ORCID: 0000-0001-5647-473X
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Research Areas
  • Obesity, Physical Activity, Diet
  • Smoking Behavior and Cessation
  • Physical Activity and Health
  • Heart Rate Variability and Autonomic Control
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Neuroscience of respiration and sleep
  • Respiratory Support and Mechanisms
  • School Health and Nursing Education
  • Renal function and acid-base balance
  • Behavioral Health and Interventions
  • Neonatal and fetal brain pathology
  • Asthma and respiratory diseases
  • Eating Disorders and Behaviors
  • Cardiovascular and exercise physiology
  • Organ Donation and Transplantation
  • Organ Transplantation Techniques and Outcomes
  • Tuberculosis Research and Epidemiology
  • Renal Diseases and Glomerulopathies
  • Agriculture and Farm Safety
  • Chemical Synthesis and Analysis
  • Electrolyte and hormonal disorders
  • Child and Adolescent Health
  • Public Health Policies and Education
  • Lower Extremity Biomechanics and Pathologies
  • Systemic Sclerosis and Related Diseases

Ball State University
2025

Memorial Medical Center
2024

UMass Memorial Health Care
2024

Bellarmine University
2002-2022

University of Louisville
1992-2021

Louisville VA Medical Center
2020-2021

University of Leicester
2006

Kentucky Science Center
1995

University of Dundee
1970-1975

National Institute for Medical Research
1961-1968

Abstract: Inflammation is the body's response to insults, which include infection, trauma, and hypersensitivity. The inflammatory complex involves a variety of mechanisms defend against pathogens repair tissue. In lung, inflammation usually caused by or exposure toxins, pollutants, irritants, allergens. During inflammation, numerous types cells are activated. Each releases cytokines mediators modify activities other cells. Orchestration these molecules leads progression inflammation....

10.2147/jir.s4385 article EN cc-by-nc Journal of Inflammation Research 2008-12-01

10.1111/j.1471-0528.1954.tb07507.x article EN BJOG An International Journal of Obstetrics & Gynaecology 1954-08-01

To better inform the development of smoking cessation programs for adolescents and young adults, a prospective study was employed to systematically examine behavioral, demographic, health, psychosocial determinants cessation.Data from 2003-2005 National Youth Smoking Cessation Survey were used. Of 2,582 smokers aged 16-24 years sampled, 1,354 provided complete baseline telephone interview data on variables, their self-reported status at 2-year follow-up known (currently vs. not smoking)....

10.1093/ntr/ntu005 article EN Nicotine & Tobacco Research 2014-02-11

We assessed the safety and efficacy of orally administered CC chemokine receptor 1 (CCR1) antagonist in 105 patients with relapsing/remitting MS (RRMS) a 16-week, randomized, double-blind, placebo-controlled trial. The primary endpoint was cumulative number newly active lesions on serial MRI scans. Other MRI, immunologic, clinical outcomes were also explored. No significant treatment difference observed for any tested variable. CCR1 does not contribute to initial leukocyte infiltration RRMS.

10.1136/adc.30.150.102 article EN Archives of Disease in Childhood 1955-04-01

The rise of social media and digital technology has perpetuated these advertisements. However, achieving the flawless looks models in advertisements is often unachievable (e.g. too thin, skin), particularly given latest tools that allow for manipulation images photoshop). purpose this abstract to report on a method assess appearance photographs media. A content analysis was completed platform Facebook. Facebook selected because "likes" were available.Images two diverse fashion brands, Shein...

10.31274/itaa.18652 article EN cc-by 2025-01-17

A number of studies have found that cigarette smoking causes an acute increase in resting energy expenditure, but the effect on expenditure during light physical activity is less clear. Since both and been shown to plasma catecholamines, these could produce additive effects when activity. In this study, impact cardiovascular function, nicotine catecholamine levels was determined adult male subjects at rest while engaged Smoking resulted a 3.6% above baseline; whereas caused by (compared with...

10.1080/14622299050011501 article EN Nicotine & Tobacco Research 1999-12-01

Purpose. Chronic obstructive pulmonary disease (COPD) may cause not only inflammation in the lungs but also systemic effects. One potential strategy to reduce and attenuate progression is physical activity (PA). However, no nationally representative studies, our knowledge, have examined association between objectively measured among those with COPD. Design. Cross-sectional. Setting. National Health Nutrition Examination Survey 2003–2006. Subjects. Two hundred thirty-eight former or current...

10.4278/ajhp.130510-quan-235 article EN American Journal of Health Promotion 2013-12-20

Objective: To determine whether quantified, auditable records of functional rehabilitation can be generated using subjective assessments players’ performance in fitness tests routinely used professional football. Method: Ten sequential test elements grouped into three phases (fitness, ball and match skills, pace football) were to monitor recovery from injury. Physiotherapists subjectively assessed each element a six point rating scale. Satisfactory the assessment programme added 10% injured...

10.1136/bjsm.2005.021048 article EN British Journal of Sports Medicine 2006-01-23

We tested the hypothesis that oleic acid-induced acute lung injury activates pulmonary nociceptors, is, C fibre receptors (CFRs) and high-threshold Adelta (HTARs). Single-unit activity was recorded in cervical vagus nerve assessed before after injecting acid (75 microl kg(-1) i.v.) into anaesthetized, open-chest, mechanically ventilated rabbits. Unit activities increased within seconds peaked a few minutes (from 0.3 +/- 0.1 to 1.4 0.9 impulses s(-1) for CFRs from 0.5 1.7 HTARs, both n = 8 P...

10.1113/expphysiol.2006.036673 article EN Experimental Physiology 2007-03-29

Mouse model research is proliferating because of its readiness for genetic manipulation. Little known about pulmonary vagal afferents in mice, however. The purpose this study was to determine whether their are similar those large animals. Single-unit activity recorded the cervical vagus nerve anesthetized, open-chest, and mechanically ventilated mice. We evaluated airway sensory 153 single units; 141 were mechanosensitive, with 134 inflation receptors 7 deflation receptors. remaining 12...

10.1152/japplphysiol.00161.2006 article EN Journal of Applied Physiology 2006-05-05

1. Yeast was grown in a minimal synthetic medium together with range of 14C-labelled substrates under standardized conditions. After isolation, the purified thiamine cleaved by sulphite and pyrimidine thiazole moieties were assayed for radioactivity. 2. In order decreasing incorporation, [14C]formate, [3−14C]serine, [2−14C]glycine [2−14C]acetate supplied label pyrimidine, [2−14C]glycine, [1−14C]glycine, [14C]formate thiazole. Incorporation into fragments from several other substrates,...

10.1042/bj1090161 article EN Biochemical Journal 1968-09-01

Purpose: Considerable research has shown adverse neurobiological effects of chronic alcohol use, including long-term and potentially permanent changes in the structure function brain; however, much less is known about consequences smoking, as it largely been ignored until recently. In this article, we present a conceptual model proposing smoking on neurocognition role that physical activity may play relationship well its cessation. Methods: Pertinent published peer-reviewed articles...

10.1080/02701367.2015.1074152 article EN Research Quarterly for Exercise and Sport 2015-09-21

Research Article| July 01 1961 Experiments on the biosynthesis of thiamine. Isotope-competition experiments with [35S]sulphate in cultures Saccharomyces cerevisiae CHS Hitchcock; Hitchcock 1National Institute for Medical Research, Mill Hill, London, N.W. 7 Search other works by this author on: This Site PubMed Google Scholar J Walker Biochem (1961) 80 (1): 137–148. https://doi.org/10.1042/bj0800137 Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share...

10.1042/bj0800137 article EN Biochemical Journal 1961-07-01

To our knowledge, no longitudinal epidemiological study among daily smokers has examined the effects of physical activity change/ trajectory on smoking cessation. The purpose this was to examine changes in cessation a national sample young (16-24 y) smokers.Data from 2003-2005 National Youth Smoking Cessation Survey were used (N = 1178). Using hierarchical agglomerative cluster analysis, 5 distinct self-reported trajectories over 3 time periods (baseline, 12-month, and 24-month follow-up)...

10.1123/jpah.2014-0605 article EN Journal of Physical Activity and Health 2015-05-12

Background: Research has previously demonstrated an inverse association between smoking status and physical activity; however, few studies have examined the nicotine dependence activity or sedentary behavior. Aim: This study accelerometer-determined Materials Methods: Data from 2003-2006 National Health Nutrition Examination Survey (NHANES) were used. A total of 851 adult (≥20 years) smokers wore accelerometer for ≥4 days completed Fagerstrom Test Nicotine Dependence scale. Regression models...

10.4103/1947-2714.153920 article EN North American Journal of Medical Sciences 2015-01-01

To determine the relationship between patient-reported single numeric ratings and actual scores obtained from a validated instrument, Knee Outcome Survey (KOS).Patient-reported outcome (PRO) measures are an important component of patient management. Information PRO can be used to prioritize goal setting, assist with clinical decision-making, provide evidence for effectiveness interventions, monitor progress, assess organizational or clinician performance.Scores KOS activity daily living...

10.3109/09593985.2012.762077 article EN Physiotherapy Theory and Practice 2013-01-30
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