Lipid content of liver mitochondrial membranes was studied in rats with alloxan diabetes. It was shown that the concentration of mitochondrial neutral lipids rose, whereas phospholipid content in the external membrane descended and that in the internal membrane ascended. The level of mitochondrial phospholipid saturated fatty acids tended toward increase. Phospholipid-composing phosphatidylserine and cardiolipin underwent the greatest changes. It is suggested that in alloxan diabetes, the mitochondrial membrane becomes more rigid at the expense of high cholesterol and saturated fatty acid concentrations. The changes in phospholipid content seem to be due to endogenous phospholipase activation.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Role of VDAC1 in hepatocyte apoptosis during acute liver injury in rats induced by obstructive jaundice.
Iran J Basic Med Sci
January 2025
Anhui No. 2 Provincial People's Hospital Clinical College of Anhui Medical University, Hefei 230041, Anhui, China.
Objectives: Exploring the role of VDAC1 in hepatocyte apoptosis during acute liver injury induced by obstructive jaundice.
Materials And Methods: Animal and cell models were established to investigate possible mechanisms during acute liver injury induced by OJ. Blood was collected for liver function assessment.
Engineered Cell Membrane-Coated Keratin Nanoparticles Attenuated Intervertebral Disc Degeneration by Remodeling the Disc Microenvironment.
Adv Healthc Mater
January 2025
Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.
Characterized by a cascade of profound changes in nucleus pulposus (NP) cells, extracellular matrix (ECM), and biomechanics, intervertebral disc degeneration is a common multifactorial condition that may lead to various degenerative lumbar disorders. Therapeutic strategies targeting a single factor have shown limited efficacy in treating disc degeneration, and approaches that address multiple pathological ingredients are barely reported. In this study, engineered cell membrane-encapsulated keratin nanoparticles are developed to simultaneously alleviate NP cell senescence and promote ECM remodeling.
View Article and Find Full Text PDFTrained Decoy Nanocages Confer Selective Cuproptosis and Metabolic Reprogramming for Drug-Resistant Bacterial Targeting Therapy.
ACS Nano
January 2025
Department of Infectious Diseases, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China.
Nonantibiotic strategies are urgently needed to treat acute drug-resistant bacterial pneumonia. Recently, nanomaterial-mediated bacterial cuproptosis has arisen widespread interest due to its superiority against antibiotic resistance. However, it may also cause indiscriminate and irreversible damage to healthy cells.
View Article and Find Full Text PDFCharacterization of the putative yeast mitochondrial triacylglycerol lipase Tgl2.
J Biol Chem
January 2025
Interfaculty Institute of Biochemistry, University of Tübingen, Tübingen, Germany. Electronic address:
Mitochondria derive the majority of their lipids from other organelles through contact sites. These lipids, primarily phosphoglycerolipids, are the main components of mitochondrial membranes. In the cell, neutral lipids like triacylglycerides (TAGs) are stored in lipid droplets, playing an important role in maintaining cellular health.
View Article and Find Full Text PDFMechanisms of dual modulatory effects of spermine on the mitochondrial calcium uniporter complex.
J Biol Chem
January 2025
Department of Physiology and Biophysics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045; Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville, VA 22903. Electronic address:
The mitochondrial Ca uniporter is the Ca channel responsible for mitochondrial Ca uptake. It plays crucial physiological roles in regulating oxidative phosphorylation, intracellular Ca signaling, and cell death. The uniporter contains the pore-forming MCU subunit, the auxiliary EMRE protein, and the regulatory MICU1 subunit, which blocks the MCU pore under resting cellular Ca concentrations.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!