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Mitochondrial fission is a key trigger of cardiac ischemia-reperfusion injuries (IR). Exercise training is an efficient cardioprotective strategy, but its impact on mitochondrial fragmentation during IR remains unknown. Using isolated rat hearts, we found that exercise training limited the activation of dynamin-like protein 1 and limited mitochondrial fragmentation during IR. These results support the hypothesis that exercise training contributes to cardioprotection through its capacity to modulate the mitochondrial fragmentation during IR.
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http://dx.doi.org/10.1085/jgp.202313485 | DOI Listing |
Diabetes
September 2025
Institute for Physical Activity and Nutrition, Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Victoria, Australia.
Unlabelled: Despite stimulating glucagon secretion, the mechanisms by which protein ingestion lowers glucose excursions remain unclear. We investigated this using the triple stable isotope glucose tracer technique to measure postprandial glucose fluxes. Eleven healthy adults completed three trials, ingesting 25 g glucose (25G; 100 kcal), 50 g glucose (50G; 200 kcal), or 25 g glucose plus 25 g whey protein (25WG; 200 kcal).
View Article and Find Full Text PDFJAMA Psychiatry
September 2025
School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia.
Importance: Cannabis is the most commonly used illicit drug, with 10% to 30% of regular users developing cannabis use disorder (CUD), a condition linked to altered hippocampal integrity. Evidence suggests high-intensity interval training (HIIT) enhances hippocampal structure and function, with this form of physical exercise potentially mitigating CUD-related cognitive and mental health impairments.
Objective: To determine the impact of a 12-week HIIT intervention on hippocampal integrity (ie, structure, connectivity, biochemistry) compared with 12 weeks of strength and resistance (SR) training in CUD.
Neurochem Res
September 2025
Biology and Health Laboratory, Faculty of Sciences, Ibn Tofail University, Kenitra, Morocco.
Parkinson's disease (PD) is characterized by impairments in motor control following the degeneration of dopamine-producing neurons located in the substantia nigra pars compacta. Environmental pesticides such as Paraquat (PQ) and Maneb (MB) contribute to the onset of PD by inducing oxidative stress (OS). This study evaluated the therapeutic efficacy of moderate physical activity (PA) on both motor and non-motor symptoms in a Wistar rat model of Paraquat and Maneb (PQ/MB) induced PD.
View Article and Find Full Text PDFJ Manipulative Physiol Ther
September 2025
Department of Physical Education, Federal University of Sergipe, Cidade Universitária Professor José Aloísio de Campos, São Cristóvão, Sergipe, Brazil.
Objective: The purpose of this study was to compare the effects of 16 weeks of functional versus dual-task training on aspects of pain in older women with chronic nonspecific low back pain.
Methods: This randomized clinical trial included 38 participants aged 60 to 79 years divided into 2 groups: functional training (FT) and dual-task training (DT). We assessed pressure pain threshold (PPT), temporal summation of pain, conditioned pain modulation (CPM), trunk instability, isometric strength, and endurance of trunk muscles before and 16 weeks after training.
JACC Case Rep
September 2025
Cardiovascular Division, Department of Medicine, Froedtert and Medical College of Wisconsin, Milwaukee, Wisconsin, USA. Electronic address:
Baroreflex activation therapy (BAT) improves functional status, quality of life, and exercise capacity in patients with heart failure with reduced ejection fraction; however, its direct effects on reversing adverse cardiac remodeling as assessed by improvements in cardiac structure, function, and coupling with the arterial system remain unclear. We present 2 cases of patients who initially presented with decompensated heart failure, and despite initial medical therapy and continued outpatient follow-up, were unable to tolerate full escalation of guideline-directed medical therapy. The patients remained symptomatic, with high biomarker levels, poor functional capacity, severe heart failure symptoms, and objectively had decreased stroke volume, low left ventricular ejection fraction, and high left ventricular mass.
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