Pilot Study of Peripheral Muscle Function in Primary Biliary Cirrhosis: Potential Implications for Fatigue Pathogenesis
BACKGROUND & AIMS
Primary biliary cirrhosis (PBC) is characterized in 95% of patients by autoantibody responses directed against the mitochondrial antigen pyruvate...
Abnormalities in pH handling by peripheral muscle and potential regulation by the autonomic nervous system in chronic fatigue syndrome
OBJECTIVES
To examine muscle acid handling following exercise in chronic fatigue syndrome (CFS⁄ME) and the relationship with autonomic dysfunction.
DESIGN...
Loss of capacity to recover from acidosis in repeat exercise is strongly associated with fatigue in primary biliary cirrhosis
BACKGROUND & AIMS
Upon exercise, primary biliary cirrhosis (PBC) is associated with significant acidosis in peripheral muscle with recovery rate from acidosis strongly...
Loss of capacity to recover from acidosis on repeat exercise in chronic fatigue syndrome: a case–control study
BACKGROUND
Chronic fatigue syndrome (CFS) patients frequently describe difficulties with repeat exercise. Here, we explore muscle bioenergetic function in response to three bouts of...
Excessive vigorous exercise impairs cognitive function through a muscle-derived mitochondrial pretender
Excessive exercise impairs cognitive function, but the underlying mechanism remains unclear. Here, we show that excessive vigorous exercise-induced lactate accumulation stimulates muscles to...
Glymphatic clearance controls state-dependent changes in brain lactate concentration
Brain lactate concentration is higher during wakefulness than in sleep. However, it is unknown why arousal is linked to an increase in brain lactate and why lactate declines within minutes of sleep.
Here, we...
Pursuing Reduction in Fatigue After COVID-19 via Exercise and Rehabilitation PREFACER: a protocol for a randomised feasibility trial
INTRODUCTION
Over 777 million COVID-19 infections have occurred globally, with data suggesting that 10%–20% of those infected develop Long COVID. Fatigue is one...
Neurometabolite alterations in Gulf War Illness: a whole-brain magnetic resonance spectroscopy study
Chloe Jones, Olivia Haskin, Jarred Younger
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Abstract
Gulf War Illness (GWI) affects approximately 30% of veterans who served in the 1991 Persian Gulf War and is...
Erythrocytes as a Source of Exerkines
Exercise activates many metabolic and signaling pathways in skeletal muscle and other tissues and cells, causing numerous systemic beneficial metabolic effects. Traditionally recognized for their principal role in oxygen (O2) transport, erythrocytes have...
Dysregulated oxidative stress and lactate levels in treatment-resistant schizophrenia
Fang; Zhang; Xu; Wang; He; Liao; Yuan; Tang
Schizophrenia is a severe and clinically heterogeneous mental disorder, with approximately 30 % of patients developing treatment resistance to standard...
Identifying the Neurobiological Substrates of Gulf War Illness
by Chloe Jones
Jarred Younger, Committee Chair; Adam Goodman; Maxine Krengel; Virendra Mishra; Robert Sorge
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Abstract
Gulf War Illness (GWI) affects approximately 30% of veterans who served in the 1991 Persian...
Mitochondrial activity tunes nociceptor resilience to excitotoxicity
Lin Yuan; Navdeep S Chandel; David Julius
The capsaicin receptor, TRPV1, mediates the detection of noxious chemical and thermal stimuli by nociceptors, primary sensory neurons of the pain pathway. Overactivation of TRPV1 leads...
The Roles of Lactate and Lactylation in Diseases Related to Mitochondrial Dysfunction
Ma, Fei; Yu, Wei
Glycolysis and oxidative phosphorylation are the main pathways of cellular energy production. Glucose is metabolized via glycolysis to generate pyruvate, which, under anaerobic conditions, is...
Abstract
Post-translational modifications (PTMs) regulate protein structure, function, and interactions, playing pivotal roles in cellular processes and disease progression. Lactate, a byproduct of the Warburg effect, accumulates excessively during viral infections and functions as a signaling...
Abstract
Lactate is a critical regulator of cellular processes and immune signaling, and we hypothesize that exercise-induced elevations in lactate help activate immune cells in response to vigorous exercise. Despite its importance, the impact of lactate on T-cell mitochondrial respiration...
Link to the published paper here
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This is a preliminary presentation:
https://academic.oup.com/ijnp/article/28/Supplement_1/i60/8009437
https://academic.oup.com/ijnp/article-pdf/28/Supplement_1/i60/61854477/pyae059.104.pdf
Journal Article
MECHANISMS...
Wuhan strain of SARS-CoV-2 triggers activation of immune evasion machinery similar to the one operated by cancer cells
Abooali, Maryam ; Yasinska, Inna M. ; Thapa, Gauri ; Lei, Xi ; da Costa, Kelly A. S. ; Schlichtner, Stephanie ; Berger, Steffen M. ; Fasler-Kan, Elizaveta ; Temperton, Nigel J...
Comprehensive transcriptome assessment in PBMCs of post-COVID patients at a median follow-up of 28 months after a mild COVID infection reveals upregulation of JAK/STAT signaling and a prolonged immune response
Serena Fineschi, Joakim Klar, Juan Ramon Lopez Egido, Jens Schuster, Jonas Bergquist...
Copied post - about a tweet by Putrino suggesting that mitochondrial dysfunction causes lactic acid, which causes PEM
It would be nice with an explanation for why lactic acid causes PEM..
https://www.tandfonline.com/doi/abs/10.1080/21641846.2025.2483112
Research Article
Caffeine against persistent fatigue in long-COVID: a randomized clinical trial
Liziane Rosa Cardoso
Maria Cristine Campos
Tatyana Nery
Ana Cristina de Bem Alves
Ana Elisa Speck
Naiara Souza dos Santos
Izabel...
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