Evidence map›Paper›PMID 36929016›Full record

ArticleEuropean journal of applied physiology2023

Serum klotho concentrations in older men with hypertension or type 2 diabetes during prolonged exercise in temperate and hot conditions.

Kelli E King, James J McCormick, Sean R Notley, Pierre Boulay, Naoto Fujii, Tatsu Amano, Glen P Kenny

Abstract read
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In one paragraph

Article in European journal of applied physiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 28% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Unveiling the Prognostic Power of HRR in ICU-Admitted COPD Patients: A MIMIC-IV Database Study.International journal of chronic obstructive pulmonary disease · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Kelli E KingHuman and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, 125 University Ave., Room 367, Montpetit Hall, Ottawa, ON, K1N 6N5, Canada.ORCID http://orcid.org/0000-0002-6232-2860
James J McCormickHuman and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, 125 University Ave., Room 367, Montpetit Hall, Ottawa, ON, K1N 6N5, Canada.ORCID http://orcid.org/0000-0003-2729-2077
Sean R NotleyHuman and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, 125 University Ave., Room 367, Montpetit Hall, Ottawa, ON, K1N 6N5, Canada.ORCID http://orcid.org/0000-0002-5065-5000
Pierre BoulayFaculté des sciences de l'activité physique, Université de Sherbrooke, Sherbrooke, QC, Canada.ORCID http://orcid.org/0000-0003-3057-2272
Naoto FujiiFaculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan.ORCID http://orcid.org/0000-0001-9696-8291
Tatsu AmanoLaboratory for Exercise and Environmental Physiology, Faculty of Education, Niigata University, Niigata, Japan.ORCID http://orcid.org/0000-0001-9451-6937
Glen P KennyHuman and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, 125 University Ave., Room 367, Montpetit Hall, Ottawa, ON, K1N 6N5, Canada. gkenny@uottawa.ca.ORCID http://orcid.org/0000-0001-8683-6973
University of Ottawa · CANiigata University · JPUniversité de Sherbrooke · CAUniversity of Tsukuba · JP

Funding

Ontario Ministry of Labor 16-R-036
6 · The paper itself

Abstract

purposeKlotho is a cytoprotective protein that increases during acute physiological stressors (e.g., exercise heat stress), although age-related declines in klotho may underlie cellular vulnerability to heat stress. The present study aimed to compare serum klotho in healthy older men and men with type 2 diabetes (T2D) or hypertension (HTN) during prolonged exercise in temperate or hot conditions.

methodsWe evaluated serum klotho in 12 healthy older men (mean [SD]; 59 years [4]), 10 men with HTN (60 years [4]), and 9 men with T2D (60 years [5]) before and after 180 min of moderate-intensity (fixed metabolic rate of 200 W/m

resultsTotal exercise duration was reduced during the hot condition in older men with HTN and T2D than healthy older men (both p ≤ 0.049), despite similar core temperatures, HR, and HRR. Klotho was higher than rest following exercise in the heat in healthy older men (+ 191 pg/mL [189]; p < 0.001) and responses were greater (p = 0.036) than men with HTN (+ 118 pg/mL [49]; p = 0.030), although klotho did not increase in men with T2D (+ 4 pg/mL [71]; p ≥ 0.638).

conclusionGiven klotho's role in cytoprotection, older men with HTN and especially T2D may be at increased cellular vulnerability to prolonged exercise or physically demanding exercise in the heat.

Indexed as

Diabetes Mellitus, Type 2HypertensionAgedBody TemperatureBody Temperature RegulationHeart RateHot TemperatureHumansMaleAgingChronic diseaseHeat strainHeat stressPhysical activity

Identifiers

PMID36929016
OpenAlexW4327682042

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.