Factors controlling the rate of oxidation of succinate were studied in mitochondria isolated from twenty-seven specimens of normal human liver obtained at operation. These were compared with mitochondria prepared from the livers of anesthetized and unanesthetized rats. Previously reported lower rates of succinate oxidation by human liver mitochondria were confirmed. This difference was no longe...

Hyperglycemia in Diabetes mellitus (DM) induces oxidative stress and mitochondrial disruptions the liver, thereby triggering apoptosis through Bcl-2 family signaling. Excessive leads to liver dysfunction. Chlorogenic acid (CGA) was elucidated this study preventing dysfunction as a progression of DM. The diabetic model conducted Wistar rats, divided into six groups. Blood examinations were done ...

Background: Mitochondria are a source of reactive oxygen species (ROS), and several natural compounds used as antioxidant agents. This study aimed to investigate compare the effects fresh grape juice red wine on oxidative stress biomarkers in rat liver mitochondria. Materials Methods: In this regard, mitochondria were isolated from 27 male Wistar rats (220-250 g). The cultured different doses f...

BACKGROUND Chronic ethanol (EtOH) administration to experimental animals induces hepatic oxidative stress and up-regulates mitochondrial biogenesis. The mechanisms by which chronic EtOH up-regulates mitochondrial biogenesis have not been fully explored. In this work, we hypothesized that oxidative stress is a factor that triggers mitochondrial biogenesis after chronic EtOH feeding. If our hypot...

The ketogenic diet (KD) has been utilized as a dietary therapeutic for nearly a century. One experimental model particularly responsive to the KD is the BTBRT+tf/j (BTBR) mouse, which displays phenotypic characteristics of autism spectrum disorder (ASD) and insulin resistance. Recently, the study of impaired mitochondrial function has become a focal point of research investigating the pathophys...

OBJECTIVE Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease and is associated with an enhanced risk for liver and cardiovascular diseases and mortality. NAFLD can progress from simple hepatic steatosis to non-alcoholic steatohepatitis (NASH). However, the mechanisms predisposing to this progression remain undefined. Notably, hepatic mitochondrial dysfunction is ...

Sirtuin 3 (SIRT3), an important regulator of energy metabolism and lipid oxidation, is induced in fasted liver mitochondria and implicated in metabolic syndrome. In fasted liver, SIRT3-mediated increases in substrate flux depend on oxidative phosphorylation (OXPHOS), but precisely how OXPHOS meets the challenge of increased substrate oxidation in fasted liver remains unclear. Here, we show that...

The role of reactive oxygen species in liver fibrogenesis is not yet clarified [11]. Huang et al. [13] showed a progressive increase in plasma malondialdehyde, hepatic 8-hydroxy-2’-deoxyguanosine, hepatic mitochondrial respiratory functions and procollagen I and III or transforming growth factor1 mRNA expression in rats rendered cirrhotic by bile duct ligation. There is also a progressive impai...

Mitochondrial impairment is hypothesized to contribute to the pathogenesis of chronic cholestatic liver diseases. Mitofusin 2 (Mfn2) regulates mitochondrial morphology and signaling and is involved in the development of numerous mitochondrial-related diseases; however, a functional role for Mfn2 in chronic liver cholestasis which is characterized by increased levels of toxic bile acids remain u...

Acetaminophen (AAP) overdose causes formation of nitrotyrosine, a footprint of peroxynitrite, in centrilobular hepatocytes. The importance of peroxynitrite for the pathophysiology, however, is unclear. C3Heb/FeJ mice were treated with 300 mg/kg AAP. To accelerate the restoration of hepatic glutathione (GSH) levels as potential endogenous scavengers of peroxynitrite, some groups of animals recei...