The effect of 3',4'-dihydroxyflavonol (DiOHF) on endoplasmic reticulum stress in the cerebellum during brain ischemia-reperfusion.

Ischemia is a condition occured when there is insufficient blood flow to the tissues, negatively affecting cellular energy production. Brain ischemia is a critical pathological process caused neuronal function to deteriorate and cell death due to the temporary or permanent interruption of cerebral blood circulation. During this process, triggering endoplasmic reticulum (ER) stress disrupts intracellular protein folding mechanisms, leading to increased neuronal damage.

Naringin Supplementation Reduces Inflammatory Processes in the Cerebellum in Brain Ischemia of Rats.

Introduction: During cerebral ischemia, brain tissue is damaged in two successive stages: ischemia and reperfusion (I/R). In the ischemic phase, brain tissue undergoes energy failure due to an impaired circulatory system (cerebrovascular), resulting in oxygen and glucose deprivation and consequent brain damage.

Objective: The study aimed to determine the effect of a two-week administration of naringin on caspase-3, IL-17, and NF-κB levels in cerebellar tissue in experimental focal brain ischemiareperfusion in rats.

In Diabetic Aged Female Rats, Resveratrol Supplementation Prevents Retinal Tissue Damage By Increasing Antioxidant Activity Through SIRT1 Gene Expression.

Introduction: The present study was carried out to investigate how resveratrol administration affects retinal SIRT1 levels and retinal tissue damage in diabetic elderly female rats.

Methods: A total of 24 elderly female rats were divided equally into 4 groups (G): G1, Control; G2, Control + Resveratrol; G3, Diabetes; G4, Diabetes + Resveratrol. Experimental diabetes was induced by a single intraperitoneal injection of streptozotocin (STZ) in G3 and G4.

Vitamin D and Neurodegenerative Diseases Such as Multiple Sclerosis (MS), Parkinson's Disease (PD), Alzheimer's Disease (AD), and Amyotrophic Lateral Sclerosis (ALS): A Review of Current Literature.

Purpose Of Review: This review explores the role of Vitamin D3 and its derivatives as inhibitors of pathological metabolic modifications in neurodegenerative diseases. The manuscript investigates how Vitamin D3 impacts neuronal calcium regulation, antioxidative pathways, immunomodulation, and neuroprotection during detoxification, beyond its known functions in intestinal, bone, and kidney calcium and phosphorus absorption, as well as bone mineralization.

Recent Findings: Recent studies have highlighted the synthesis of the active metabolite 1,25(OH)2D3 (vitamin D) in glial cells via the hydroxylation process of CY-P24A1, an enzyme in the cytochrome P450 system in the brain.

Effect of 2 Weeks Naringin Application on Neurological Function and Neurogenesis After Brain Ischemia-Reperfusion in Ovariectomized Rats.

Cerebral ischemia-reperfusion (I/R) is a condition that occurs when blood flow is restored after a temporary interruption and may lead to deterioration in brain functions depending on the time passed. One of the changes in functions is neurological score values. This study aimed to determine the effect of brain ischemia reperfusion and 2-week naringin supplementation on changes in neurological score and neurogenesis in ovariectomized female rats.

Flavonoids in Brain Ischemia-Reperfusion and their Effect on Kinases as Signaling Pathway Activity.

Brain ischemia-reperfusion injury (CIRI) refers to brain ischemia that leads to cellular dysfunction and cell death after a certain period, and ischemic damage is rescued by providing blood supply and reperfusion. And then, reperfusion includes components such as ion imbalance, mitochondrial dysfunction, oxidative stress, neuroinflammation, Ca2+ overload, and apoptosis, which do not cause tissue damage. Autophagy also occurs in CIRI due to oxygen deficiency, and autophagy has been shown to protect cells from ischemic injury.

Effect of Cumulative Zinc Doses on Papillary Muscle Contractions and the Zinc Finger Protein ZEB1.

In this study, we aimed to investigate the effects of cumulative doses of Zn (by exposing samples to 1 µM, 10 µM, and 100 µM ZnCl) on myocardial papillary muscle contractions isolated from rat hearts in vitro and the roles of the zinc finger protein ZEB1 in this effect. In these preparations, 100 µM ZnCl application in different protocols caused a decrease in contraction force and an increase in contraction time in both frequency-dependent parameters and pre-expected stimuli when compared to the control group. Our study data show that Ca homeostasis is closely related to increasing Zn doses (especially at 100 µM ZnCl dose).

3',4'-Dihydroxy Flavonol (DiOHF) Exerting a Positive Effect on Neurogenesis and Retinal Damage in Experimental Brain Ischemia-Reperfusion of Rats.

Introduction: Brain ischemia-reperfusion can cause serious and irreversible health problems. Recent studies have suggested that certain flavonoids may help stabilize the correctly folded structure of the visual photoreceptor protein rhodopsin and offset the deleterious effect of retinitis pigmentosa mutations.

Objective: The current study aimed to determine the effect of 3',4'-Dihydroxyflavonol (DiOHF) supplementation for 1 week on lipid peroxidation in the retina tissue following focal brain ischemia-reperfusion in rats.

Comparison of the protective effects of silymarin and thymoquinone in the focal cerebral ischemia-reperfusion rat model.

Silymarin and thymoquinone exert neuroprotective effects, although their combined effects in focal cerebral ischemia/reperfusion (I/R) models are unknown. We compared the effect of silymarin and thymoquinone in an I/R rat model. Wistar rats were divided into five groups: SHAM, REP (I/R), SIR (200 mg/kg silymarin+I/R), TIR (3 mg/kg thymoquinone+I/R), and STIR (200 mg/kg silymarin+3-mg thymoquinone+I/R).

Dietary zinc status is associated with ZnT3 (SLC30A3), IL-6 gene expressions and spinal cord tissue damage in spinal cord tissue in a cuprizone-induced rat Multiple Sclerosis model.

The aim of this study was to investigate the effects of dietary zinc status on spinal cord tissue damage and ZnT3, IL-6 gene expressions in a cuprizone-induced rat Multiple Sclerosis (MS) model. The study was carried out on 46 adult male rats of the genus Wistar. The animals used in the study were divided into 5 groups (G) (Control 6, other groups 10).

Naringin Affects Caspase-3, IL-1β, and HIF-1α Levels in Experimental Kidney Ischemia-Reperfusion in Rats.

Background: Microvascular dysfunction develops in tissues after Ischemia-Reperfusion (IR). The current study aimed to determine the effect of naringin supplementation on kidney caspase-3, IL-1β, and HIF-1α levels and kidney histology in rats undergoing unilateral nephrectomy and kidney-ischemia reperfusion.

Methods: The study was conducted on 8-12 weeks old 40 Wistar-type male rats.

Apoptosis of hippocampus and cerebellum induced with brain ischemia reperfusion prevented by 3',4'-dihydroxyflavonol (DiOHF).

The present study aimed to determine the effect of 3',4'-dihydroxyflavonol (DiOHF) on apoptosis in the cerebellum and hippocampus in rats with ischemia-reperfusion. A total of 38 Wistar albino male rats were used. Experimental groups were designed as Group 1-Sham; Group 2-Ischemia-reperfusion (IR), in which animals were anesthetized and carotid arteries ligated for 30 minutes (ischemia) and reperfused 30 minutes; Group 3- IR + DiOHF (10 mg/kg); Group 4- Ischemia + DiOHF (10 mg/kg) + reperfusion; Group 5-DiOHF + IR.

The Effect of Chronic Swimming Exercise and Vitamin E Supplementation on Bone Element Metabolism in Epileptic Rats.

Introduction: This study aimed to investigate the effects of chronic swimming exercise and vitamin E administration on elemental levels in the bone tissue of epileptic rats.

Methods: Forty-eight rats were divided into six groups: Control, Swimming, Swimming + vitamin E, Swimming + Epilepsy, Swimming + Epilepsy + vitamin E, and Epilepsy. Vitamin E was administered to the animals chronically by gavage at a dose of 500 mg/kg every other day for 3 months.

Improvement of neuronal and cognitive functions following treatment with 3',4' dihydroxyflavonol in experimental focal cerebral ischemia-reperfusion injury in rats.

Introduction: Ischemia/reperfusion is a pathological condition by the restoration of perfusion and oxygenation following a period of restricted blood flow to an organ. To address existing uncertainty in the literature regarding the effects of 3', 4'-dihydroxy flavonol (DiOHF) on cerebral ischemia/reperfusion injury, our study aims to investigate the impact of DiOHF on neurological parameters, apoptosis (Caspase-3), aquaporin 4 (AQP4), and interleukin-10 (IL-10) levels in an experimental rat model of brain ischemia-reperfusion injury.

Materials/methods: A total of 28 Wistar-albino male rats were used in this study.

Effect of 2-Week Naringin Supplementation on Neurogenesis and BDNF Levels in Ischemia-Reperfusion Model of Rats.

Background: Ischemic stroke is the leading cause of mortality and disability worldwide with more than half of survivors living with serious neurological sequelae; thus, it has recently attracted a lot of attention in the field of medical study.

Purpose: The aim of this study was to determine the effect of naringin supplementation on neurogenesis and brain-derived neurotrophic factor (BDNF) levels in the brain in experimental brain ischemia-reperfusion.

Study Design: The research was carried out on 40 male Wistar-type rats (10-12 weeks old) obtained from the Experimental Animals Research and Application Center of Selçuk University.

The impact of flavonoids and BDNF on neurogenic process in various physiological/pathological conditions including ischemic insults: a narrative review.

Objective: Ischemic stroke is the leading cause of mortality and disability worldwide with more than half of survivors living with serious neurological sequelae thus, it has recently attracted considerable attention in the field of medical research. Neurogenesis is the process of formation of new neurons in the brain, including the human brain, from neural stem/progenitor cells [NS/PCs] which reside in neurogenic niches that contain the necessary substances for NS/PC proliferation, differentiation, migration, and maturation into functioning neurons which can integrate into a pre-existing neural network.Neurogenesis can be modulated by many exogenous and endogenous factors, pathological conditions.

Marginal Maternal Zinc Deficiency Produces Liver Damage and Altered Zinc Transporter Expression in Offspring Male Rats.

The aim of this study was to investigate how zinc deficiency and supplementation affect liver markers including autotaxin, kallistatin, endocan, and zinc carrier proteins ZIP14 and ZnT9 in rats exposed to maternal zinc deficiency. Additionally, the study aimed to assess liver tissue damage through histological examination. A total of forty male pups were included in the research, with thirty originating from mothers who were given a zinc-deficient diet (Groups 1, 2, and 3), and the remaining ten born to mothers fed a standard diet (Group 4).

The relationship between beta cell activation and SLC30A8/ZnT8 levels of the endocrine pancreas and maternal zinc deficiency in rats.

Objectives: Zinc, which is found in high concentrations in the β-cells of the pancreas, is also a critical component for the endocrine functions of the pancreas. SLC30A8/ZnT8 is the carrier protein responsible for the transport of zinc from the cytoplasm to the insulin granules. The aim of this study was to investigate how dietary zinc status affects pancreatic beta cell activation and ZnT8 levels in infant male rats born to zinc-deficient mothers.

Naringenin Prevents Renal Injury in Experimental Hyperuricemia Through Suppressing Xanthine Oxidase, Inflammation, Apoptotic Pathway, DNA Damage, and Activating Antioxidant System.

This research was performed to determine the effect of naringenin (NAR) in experimental hyperuricemia (HU) induced by potassium oxonate (PO) on uric acid levels and xanthine oxidase (XO), inflammation, apoptotic pathway, DNA damage, and antioxidant system in kidney tissue. Wistar Albino rats were categorized into four groups: (1) Control group, (2) PO group, (3) [PO+NAR] (2 weeks) group, and (4) PO (2 weeks)+NAR (2 weeks) group. The first group was not administered any drug.

Melatonin protects retinal tissue damage in streptozotocin-induced aged rats.

Objectives: The aim of this study was to investigate how melatonin administration affects retinal oxidative damage and retinal SIRT1 gene activation in diabetic elderly female rat model.

Methods: 16-months-old female rats were used in the study. A total of 24 rats were divided into 4 groups in equal numbers: Group 1.

Irisin and Energy Metabolism and the Role of Irisin on Metabolic Syndrome.

Irisin is a thermogenic hormone that leads to causes energy expenditure by increasing brown adipose tissue (BAT). This protein hormone that enables the conversion of white adipose tissue (WAT) to BAT is the irisin protein. This causes energy expenditure during conversion.

Effects of putrescine on oxidative stress, spermidine/spermine-N(1)-acetyltransferase, inflammation and energy levels in liver and serum in rats with brain ischemia-reperfusion.

We aimed to examine the effects of brain ischemia-reperfusion (IR) especially on serum parameters or liver enzymes, free radicals, cytokines, oxidatively damaged DNA, spermidine/spermine N-1-acetyltransferase (SSAT). The effects of addition of putrescine on IR will be evaluated in terms of inflammation and oxidant-antioxidant balance in liver.The study was conducted on 46 male Albino Wistar rats weighing 200-250 g.

The effects of resveratrol and melatonin on biochemical and molecular parameters in diabetic old female rat hearts.

The roles of melatonin and resveratrol-enhanced activation of SIRT1 (silent information regulator 1), GLUT4 (glucose transporter type 4), and PGC-1α (peroxisome proliferator-activated receptor gamma coactivator 1-alpha) in mediating the protective effects on the heart in aged female rats with streptozotocin-induced diabetes were investigated. 16-month-old 48 Wistar female rats were separated into 8 groups with equal numbers. Group 1: Control, Group 2: Resveratrol Control, Group 3: Melatonin Control, Group 4: Resveratrol and Melatonin Control, Group 5: Diabetes, Group 6: Diabetes Resveratrol, Group 7: Diabetes Melatonin, Group 8: Diabetes Resveratrol and Melatonin.

Zinc Ameliorates Nogo-A Receptor and Osteocalcin Gene Expression in Memory-Sensitive Rat Hippocampus Impaired by Intracerebroventricular Injection of Streptozotocin.

Metabolic dysfunction is a critical step in the etiopathogenesis of Alzheimer's disease. In this progressive neurological disorder, impaired zinc homeostasis has a key role that needs to be clarified. The aim of this study was to investigate the effect of zinc deficiency and administration on hippocampal Nogo-A receptor and osteocalcin gene expression in rats injected with intracerebroventricular streptozotocin (icv-STZ).

Role of exogenous putrescine in the status of energy, DNA damage, inflammation, and spermidine/spermine-n(1)- acetyltransferase in brain ischemia-reperfusion in rats.

Objectives: This study aims to investigate the role of putrescine against brain ischemia-reperfusion (IR) injured rats administered with 250 µmol/kg exogenous putrescine and highlight the IR-associated mechanisms in energy metabolism and inflammatory pathway.

Materials And Methods: The rats were divided into six groups: 1-Sham group; 2-IR group, 30 min of ischemia and 30 min of reperfusion was performed with bilateral carotid occlusion (BCAO); 3-IPR group, a single oral dose of putrescine was administered at the start of the 30-minute reperfusion; while in the other treatment groups, 4 doses of putrescine were given within 12-hour intervals. After 30 min of reperfusion, the first dose was administered immediately in the IR-PI (group 4), after 3 hr in IR-PII (group 5), and after 6 hr in IR-PIII (group 6).