Medical Dialogues
  • Dermatology
Login Register
This site is intended for healthcare professionals only
Login Register
  • MD Brand Connect
  • Vaccine Hub
  • MDTV
    • Breaking News
    • Medical News Today
    • Health News Today
    • Latest
    • Journal Club
    • Medico Legal Update
    • Latest Webinars
    • MD Shorts
    • Health Dialogues
  • Fact Check
  • Health Dialogues
Medical Dialogues
  • Medical News & Guidelines
      • Anesthesiology
      • Cardiology and CTVS
      • Critical Care
      • Dentistry
      • Dermatology
      • Diabetes and Endocrinology
      • ENT
      • Gastroenterology
      • Medicine
      • Nephrology
      • Neurology
      • Obstretics-Gynaecology
      • Oncology
      • Ophthalmology
      • Orthopaedics
      • Pediatrics-Neonatology
      • Psychiatry
      • Pulmonology
      • Radiology
      • Surgery
      • Urology
      • Laboratory Medicine
      • Diet
      • Nursing
      • Paramedical
      • Physiotherapy
  • Health news
      • Doctor News
      • Government Policies
      • Hospital & Diagnostics
      • International Health News
      • Medical Organization News
      • Medico Legal News
      • NBE News
      • NMC News
  • Fact Check
      • Bone Health Fact Check
      • Brain Health Fact Check
      • Cancer Related Fact Check
      • Child Care Fact Check
      • Dental and oral health fact check
      • Diabetes and metabolic health fact check
      • Diet and Nutrition Fact Check
      • Eye and ENT Care Fact Check
      • Fitness fact check
      • Gut health fact check
      • Heart health fact check
      • Kidney health fact check
      • Medical education fact check
      • Men's health fact check
      • Respiratory fact check
      • Skin and hair care fact check
      • Vaccine and Immunization fact check
      • Women's health fact check
  • AYUSH
    • Ayurveda
    • Homeopathy
    • Siddha
    • Unani
    • Yoga
  • State News
      • Andaman and Nicobar Islands
      • Andhra Pradesh
      • Arunachal Pradesh
      • Assam
      • Bihar
      • Chandigarh
      • Chattisgarh
      • Dadra and Nagar Haveli
      • Daman and Diu
      • Delhi
      • Goa
      • Gujarat
      • Haryana
      • Himachal Pradesh
      • Jammu & Kashmir
      • Jharkhand
      • Karnataka
      • Kerala
      • Ladakh
      • Lakshadweep
      • Madhya Pradesh
      • Maharashtra
      • Manipur
      • Meghalaya
      • Mizoram
      • Nagaland
      • Odisha
      • Puducherry
      • Punjab
      • Rajasthan
      • Sikkim
      • Tamil Nadu
      • Telangana
      • Tripura
      • Uttar Pradesh
      • Uttrakhand
      • West Bengal
  • Medical Education
      • Ayush Education News
      • Dentistry Education News
      • Medical Admission News
      • Medical Colleges News
      • Medical Courses News
      • Medical Universities News
      • Nursing education News
      • Paramedical Education News
      • Study Abroad
  • Industry
      • Health Investment News
      • Health Startup News
      • Medical Devices News
      • Pharma News
      • Pharmacy Education News
      • Industry Perspective
  • MDTV
      • Health Dialogues MDTV
      • Health News today MDTV
      • Latest Videos MDTV
      • Latest Webinars MDTV
      • MD shorts MDTV
      • Medical News Today MDTV
      • Medico Legal Update MDTV
      • Top Videos MDTV
      • Health Perspectives MDTV
      • Journal Club MDTV
      • Medical Dialogues Show
This site is intended for healthcare professionals only
LoginRegister
Medical Dialogues
LoginRegister
  • Home
  • Medical news & Guidelines
    • Anesthesiology
    • Cardiology and CTVS
    • Critical Care
    • Dentistry
    • Dermatology
    • Diabetes and Endocrinology
    • ENT
    • Gastroenterology
    • Medicine
    • Nephrology
    • Neurology
    • Obstretics-Gynaecology
    • Oncology
    • Ophthalmology
    • Orthopaedics
    • Pediatrics-Neonatology
    • Psychiatry
    • Pulmonology
    • Radiology
    • Surgery
    • Urology
    • Laboratory Medicine
    • Diet
    • Nursing
    • Paramedical
    • Physiotherapy
  • Health news
    • Doctor News
    • Government Policies
    • Hospital & Diagnostics
    • International Health News
    • Medical Organization News
    • Medico Legal News
    • NBE News
    • NMC News
  • Fact Check
    • Bone Health Fact Check
    • Brain Health Fact Check
    • Cancer Related Fact Check
    • Child Care Fact Check
    • Dental and oral health fact check
    • Diabetes and metabolic health fact check
    • Diet and Nutrition Fact Check
    • Eye and ENT Care Fact Check
    • Fitness fact check
    • Gut health fact check
    • Heart health fact check
    • Kidney health fact check
    • Medical education fact check
    • Men's health fact check
    • Respiratory fact check
    • Skin and hair care fact check
    • Vaccine and Immunization fact check
    • Women's health fact check
  • AYUSH
    • Ayurveda
      • Ayurveda Giuidelines
      • Ayurveda News
    • Homeopathy
      • Homeopathy Guidelines
      • Homeopathy News
    • Siddha
      • Siddha Guidelines
      • Siddha News
    • Unani
      • Unani Guidelines
      • Unani News
    • Yoga
      • Yoga Guidelines
      • Yoga News
  • State News
    • Andaman and Nicobar Islands
    • Andhra Pradesh
    • Arunachal Pradesh
    • Assam
    • Bihar
    • Chandigarh
    • Chattisgarh
    • Dadra and Nagar Haveli
    • Daman and Diu
    • Delhi
    • Goa
    • Gujarat
    • Haryana
    • Himachal Pradesh
    • Jammu & Kashmir
    • Jharkhand
    • Karnataka
    • Kerala
    • Ladakh
    • Lakshadweep
    • Madhya Pradesh
    • Maharashtra
    • Manipur
    • Meghalaya
    • Mizoram
    • Nagaland
    • Odisha
    • Puducherry
    • Punjab
    • Rajasthan
    • Sikkim
    • Tamil Nadu
    • Telangana
    • Tripura
    • Uttar Pradesh
    • Uttrakhand
    • West Bengal
  • Medical Education
    • Ayush Education News
    • Dentistry Education News
    • Medical Admission News
    • Medical Colleges News
    • Medical Courses News
    • Medical Universities News
    • Nursing education News
    • Paramedical Education News
    • Study Abroad
  • Industry
    • Health Investment News
    • Health Startup News
    • Medical Devices News
    • Pharma News
      • CDSCO (Central Drugs Standard Control Organisation) News
    • Pharmacy Education News
    • Industry Perspective
  • Home
  • Cardiology-CTVS
  • Cardiology & CTVS News
  • Abnormalities in...

Abnormalities in Skeletal Muscle Mitochondrial Function Linked to Exercise Intolerance in HFpEF Patients: JAMA

Written By : Dr. Mahalakshmi Sivashankaran |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2023-05-17T20:00:27+05:30  |  Updated On 17 May 2023 8:00 PM IST
Abnormalities in Skeletal Muscle Mitochondrial Function Linked to Exercise Intolerance in HFpEF Patients: JAMA
  • facebook
  • twitter
  • linkedin
  • whatsapp
  • Telegram
  • Email

USA: A ground-breaking study published JAMA: Cardiology has shed light on the pathophysiology of exercise intolerance in patients with heart failure with preserved ejection fraction (HFpEF), uncovering the crucial role of abnormal skeletal muscle metabolism.

The research, conducted by a team of experts, aimed to evaluate the associations between skeletal muscle mitochondrial function and exercise performance in HFpEF patients.

The study was a cross-sectional analysis, that involved the examination of muscle fiber bundles obtained from fresh vastus lateralis biopsies. High-resolution respirometry was employed to assess mitochondrial oxidative phosphorylation, including the capacity and contributions of complex I–linked and complex II–linked respiration.

72 patients with stable chronic HFpEF, aged 60 and above, were compared with age-matched healthy control participants who were not enrolled in regular exercise or diet programs.

The study revealed the following clinical takeaways:

1. Skeletal muscle mitochondrial function measures were significantly lower in patients with heart failure with preserved ejection fraction (HFpEF) compared to healthy controls (HC), even after adjusting for age, sex, and body mass index.

2. Maximal capacity of skeletal muscle mitochondria was strongly and significantly correlated with peak exercise oxygen consumption, 6-minute walk distance, and the Short Physical Performance Battery score.

3. The p-values were all less than 0.001, indicating a highly significant association between maximal capacity and exercise performance measures.

4. The correlation coefficients (R) were 0.69 for peak exercise oxygen consumption, 0.70 for a 6-minute walk distance, and 0.46 for the Short Physical Performance Battery score.

The abnormalities in skeletal muscle mitochondrial function can be regarded as promising therapeutic targets. It provides valuable insights into the mechanisms underlying metabolic dysfunction in HFpEF patients, a phenomenon that has remained incompletely understood until now.

“By identifying skeletal muscle mitochondrial abnormalities as key contributors to exercise intolerance, this research opens new avenues for potential interventions and treatment strategies for HFpEF patients. Further exploration in this field may lead to improved quality of life and enhanced management of this debilitating condition,” said Dr. Lina Scandalis lead author of the study.

Reference:

Scandalis L, Kitzman DW, Nicklas BJ, et al. Skeletal Muscle Mitochondrial Respiration and Exercise Intolerance in Patients With Heart Failure With Preserved Ejection Fraction. JAMA Cardiol. Published online May 10, 2023. doi:10.1001/jamacardio.2023.0957

Skeletal MuscleSkeletal Muscle Mitochondrial FunctionExercise IntoleranceHFpEF PatientsExercise Intolerance in HFpEF Patientsheart failure with preserved ejection fractionJAMA: Cardiologymuscle mitochondrial functionpreserved ejection fraction
Article Source :  JAMA Cardiology
Dr. Mahalakshmi Sivashankaran
Dr. Mahalakshmi Sivashankaran

    Dr. Mahalakshmi Sivashankaran joined Medical Dialogues as an Intern in 2023. She is a BDS graduate from Manipal College of Dental Sciences, Mangalore Batch 2022, and worked as a Junior Resident at VMMC & Safdarjung Hospital at the Department of Dental Surgery till January 2023. She has completed a Diploma in Executive Healthcare management from the Loyola Institute of Business Administration, developing skills in Healthcare Management and Administration. She covers several medical specialties including Dental, ENT, Diagnostics, Pharmacology, Neurology, and Cardiology.

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

    Show Full Article
    Next Story

    Editorial

    Aspirin Use in Male Smokers Aged 40-45 Years with Hypertension: Identifying the Ideal Candidates

    Aspirin Use in Male Smokers Aged 40-45 Years with Hypertension: Identifying the Ideal Candidates

    National Consensus 2025 on Role of Bisoprolol Across CV Continuum in Women: Top 10 Takeaways

    National Consensus 2025 on Role of Bisoprolol Across CV Continuum in Women: Top 10 Takeaways

    Relevance of Pioglitazone in Indian T2DM Care Continuum

    Relevance of Pioglitazone in Indian T2DM Care Continuum

    Azmarda Outperforms Generic Sacubitril/Valsartan in HFrEF Management, says new study

    Azmarda Outperforms Generic Sacubitril/Valsartan in HFrEF Management, says new study

    First Indian Consensus on Managing Refractory Gastroesophageal Reflux Disease Recommends Vonoprazan

    First Indian Consensus on Managing Refractory Gastroesophageal Reflux Disease Recommends Vonoprazan

    View All

    Journal Club Today

    Intensive Blood Pressure Control Reduces Dementia Risk: Study Finds

    Intensive Blood Pressure Control Reduces Dementia Risk: Study Finds

    View All

    Health News Today

    Health Bulletin 02/June/2025

    Health Bulletin 02/June/2025

    View All
    © 2022 All Rights Reserved.
    Powered By: Hocalwire
    X
    We use cookies for analytics, advertising and to improve our site. You agree to our use of cookies by continuing to use our site. To know more, see our Cookie Policy and Cookie Settings.Ok