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[Pathogenetic significance of lipid peroxidation in damage of the proximal segment of the nephron in acute Masugi's nephritis].

During the acute experimental nephritis a decrease of reabsorption by proximal tubules is combined with the activation of the lipid peroxidation into the renal cortex without changes in the activation of lysosomal enzyme of acid phosphatase and cathepsin D. Ionol, an inhibitor of oxygen products, exerts a protective action on the renal function and reabsorption by proximal tubules, decreasing concentration of the malondialdehyde into the renal cortex.

Glucosamine and selenium differentially regulate glutathione, lipid peroxidation, and mitochondrial function during glutamate stress in retinal neural cells.

Glutamate can disrupt cystine-dependent glutathione metabolism and promote oxidative and mitochondrial dysfunction in neural cells. We integrated human multiple-sclerosis optic-chiasm transcriptomics (GSE100297), glutamate-treated primary-neuron RNA sequencing (GSE255041), R28 differential-expression summaries, a normal human optic-nerve single-nucleus atlas (GSE236566), and R28 retinal precursor-cell experiments to characterize glucosamine (GlcN) and selenium responses. Human tissue showed enriched unfolded-protein-response, oxidative-stress, apoptosis, and ferroptosis programs, whereas gluta

Ulmus pumila Linné (Ulmi) Extract Attenuates Inflammatory Responses in Atopic Dermatitis by Modulating Lipid Peroxidation and Oxidative Stress.

BACKGROUND: Atopic dermatitis (AD) is a chronic inflammatory skin disorder characterized by oxidative stress and impaired skin barrier function. These pathological features contribute to persistent inflammation and symptom exacerbation, highlighting the need for therapies that can both reduce oxidative stress and modulate inflammatory pathways. METHODS: Ulmus pumila Linné (Ulmi) was prepared via hot water extraction and tested for cytotoxicity, antioxidant activity, and anti-inflammatory effects in HaCaT keratinocytes stimulated with tumor necrosis factor-alpha (TNF-α) and interferon-gamma (I

Glycemic status, antioxidant enzyme and lipid peroxidation among patients with diabetes mellitus in Buea Regional Hospital in Cameroon.

BACKGROUND: Oxidative stress has been suggested to play a role in the pathogenesis of type 2 diabetes mellitus (T2DM) and development of complications by altering antioxidant levels and inducing lipid peroxidation. Although patients with T2DM are reported to be under oxidative stress because of prolonged exposure to hyperglycemia, the influence of glycemic control in diabetes on enhanced free-radical activity is poorly understood. AIM: To evaluate the levels of malondialdehyde (MDA) - a marker of lipid peroxidation and catalase (CAT) - an antioxidant enzyme in patients with T2DM categorized b…

Molasses-amended siderophore biofertilizer reshapes the rhizosphere microbiome, promotes growth and reduces lipid peroxidation in Ocimum basilicum L.

INTRODUCTION: Siderophore-producing bacteria and their metabolites represent promising components of next-generation biofertilizers, yet their effects on plant physiology and soil microbiome structure remain insufficiently understood. METHODS: We developed a liquid biofertilizer based on siderophores and siderophore-accompanying metabolites (SSAM) produced by Pseudomonas sp. ANT_H12B and formulated with molasses as an organic carrier. Its effects on sweet basil (Ocimum basilicum L.) were evaluated by assessing plant growth, photosynthetic performance, lipid peroxidation, elemental composition…

Simultaneous disruption of glutathione and 7-dehydrocholesterol antioxidant armor drives lipid peroxidation cascade for robust ferroptotic tumor elimination.

Ferroptosis therapy is fundamentally constrained by the robust and adaptive redox homeostasis networks of tumor cells. Notably, 7-dehydrocholesterol (7-DHC) has recently emerged as a formidable, non-canonical metabolic firewall that directly intercepts lipid peroxyl radicals at the plasma membrane, rendering conventional glutathione (GSH)-depleting strategies insufficient. To overcome the dual-layered antioxidant defense, we developed a TME-responsive nanoreactor (TS/GLA@HMION) to orchestrate a synchronized "fuel-spark-breach" lipid peroxidation (LPO) cascade. The nanoreactor was constructed b…

Link between iron-mediated lipid peroxidation and polycystic ovary syndrome (PCOS): exploring the genes underlying iron regulatory mechanism.

OBJECTIVE: Mechanism underlying the etiology of polycystic ovary syndrome (PCOS) is still debatable. Present study explores the link between iron-mediated ferroptosis and PCOS. METHODOLOGY: Blood samples were collected from 150 PCOS females along with healthy controls. Expression analysis of FTH1, NCOA4, GPX4, HAMP, A2M and HP genes was estimated by RT-qPCR. Serum was used for estimation of lipid peroxidation, peroxidase enzyme, ferritin and total protein. RESULTS: Relative expression of FTH1 (P < 0.05), HAMP (P < 0.01), GPX4, A2M, HP (P < 0.001) was downregulated and NCOA4 (P < 0.001) was u…

ZDHHC2-Dependent Palmitoylation Dictates Ferroptosis and Castration Sensitivity in Prostate Cancer via Controlling ACSL4 Degradation and Lipid Peroxidation.

Ferroptosis represents a promising vulnerability to overcome therapeutic resistance in castration-resistant prostate cancer (CRPC). While S-palmitoylation of lipid peroxide-scavenging proteins such as GPX4 and SLC7A11 has been shown to suppress ferroptosis, whether palmitoylation modulates the lipid peroxidation generation remains unclear. Here, we identified the palmitoyltransferase ZDHHC2 as a critical driver of enzalutamide resistance through destabilizing ACSL4. ZDHHC2 is transcriptionally upregulated by a FOXA1/CXXC5/TET2 complex and promotes S-palmitoylation of the deubiquitinase USP19, …

Formoterol, a clinically approved drug, inhibits ferroptosis by suppressing lipid peroxidation and attenuates APAP-induced acute liver injury.

Ferroptosis is an iron-dependent form of regulated cell death characterized by lethal lipid peroxidation and implicated in various human diseases. Despite intensive research, clinically applicable ferroptosis inhibitors remain unavailable. In this study, we identify formoterol, a β2-adrenergic agonist widely used to treat asthma and COPD, as a potent and selective ferroptosis inhibitor through scaffold-based screening of FDA-approved drugs. Formoterol confers robust protection against ferroptotic cell death induced by diverse triggers across multiple human and rodent cell lines, functioning in…

Impact of Boldine Treatment on Hypertrophy and Lipid Peroxidation in the Right Ventricle Subjected to Experimental Adrenergic Overstimulation.

Adrenergic overstimulation is detrimental to the left ventricle. However, its effects on the right ventricle (RV) are not clear. Because adr … eased in the ISO group ( P < 0.05). Boldine treatment (B+ISO) reduced the FI [0.240 (0.228-0.263)], lipid peroxidation [2.07 (2.01-2.61)], and ADR [0.71(0.62-0.80)]. Boldine increased total SH levels in B+ISO [C 2.4 (1.78-2.71); ISO 4.01 (2.95-4.66) versus B+ISO 6.77(5.15-8.60)] ( P < 0.05). There was a positive correlation between lipid peroxidation and the FI, and …

Evaluation of antioxidant activity, anti-lipid peroxidation effect and elemental impurity risk of some wild Agaricus species mushrooms.

BACKGROUND: Mushrooms are natural antioxidant sources that have been consumed as food from past to present and have a nutraceutical effect thanks to the bioactive components they contain. The aim of this study is to comparatively evaluate the antioxidant activity, total phenolic content (TPC) and lipid peroxidation (LPO) inhibition effect of three mushroom species (A. bernardii, A. bresadolanus and A. cupreobrunneus) belonging to the Agaricus genus and to perform the carcinogenic and noncarcinogenic risk assessment of toxic elements such as cadmium (Cd), lead (Pb), arsenic (As) and mercury (Hg…

Targeting Aging and Diseases Associated with Ferroptosis and Senescence Through Modulation of Iron, Oxidative Stress and Lipid Peroxidation.

Ferroptosis and senescence are unique cellular processes that lead to irreversible cell abnormalities and tissue damage in many diseases, such as cancer, neurodegeneration, cardiac, liver, and kidney damage. Despite distinct differences between the two processes, essential shared features in their causes and development include increased redox iron toxicity and oxidative stress, together with reduced antioxidant capacity, such as decreased glutathione levels and downregulation of glutathione peroxidase. The consequences of these toxicities include increased lipid peroxidation and aggregation, …

Митохондриальная дисфункция, накопление железа, пероксидация липидов и воспаленная активация в клеточных моделях, полученных от пациентов с множественным склерозом.

Множественный склероз (MS) является воспалительным заболеванием центральной нервной системы (CNS). Несмотря на успехи в борьбе с вновь возникающими активными заболеваниями, эффективное лечение необратимого постепенного сокращения НР остается ограниченным. Исследования с использованием фибробатластов кожи, полученные от пациентов с неврологическими расстройствами, выявили изменения в путях клеточного стресса и биоэнергетики. Однако исследований с использованием моделей клеток MS, разработанных пациентами, мало. В этом исследовании мы собрали фибробласты из two Пациенты MS для изучения клеточных

Совпадение в аннотации оригинала
Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system (CNS). Despite advancements in managing relap … in accumulation and altered expression of iron metabolism proteins. In addition, we found increased lipid peroxidation and downregulation of antioxidant enzymes expression levels in MS fibroblasts. When challenged against erastin, a ferroptosis inducer, MS fibroblasts showed decreased viability, suggesting increased sensitivity to ferroptosis. Furthermore, MS fibrob …

Glycitein prevents reserpine-induced depression and associated comorbidities in mice: modulation of lipid peroxidation and TNF-α levels.

Depression is a debilitating mood disorder affecting millions worldwide and continues to pose a significant global health burden. Due to the … s delineate that glycitein has the potential to manage depression and impaired memory by inhibiting lipid peroxidation and inflammatory stress.

Ethanolic extract of Salacia nitida root bark ameliorates lipid peroxidation and hepatosplenomegaly in Plasmodium berghei-malaria infected mice.

The root bark of Salacia nitida L.benth (celastraceae) is used as remedy for malaria and typhoid fever in Southern part of Nigeria. This study is designed to evaluate the effect of treatment with ethanolic extract from root bark of S. nitida on lipid peroxidation, hepatomegaly and splenomegaly in Plasmodium berghei-malaria infected mice. Thirty malaria-infected and six uninfected mice were used for the study. 280, 430, and 580 mg kg-1 body weight day-1 of ethanolic extract and 4 mg kg-1 body weight day-1 of artesunate were administered orally to infected mice in groups B, C, D, and E, while 4 …

Biomarkers of neurotoxicity, oxidative stress, hepatotoxicity and lipid peroxidation in Clarias gariepinus exposed to melamine and polyvinyl chloride.

PURPOSE: Plastic particulates and chemicals are emerging environmental pollutants with significant impact on aquatic ecosystems. In this study, the effects of oral uptake of melamine, melamine formaldehyde, and polyvinyl chloride on serum biochemical profiles, antioxidant enzymes activities, lipid peroxidation levels and brain acetyl cholinesterase activities in Clarias gariepinus juveniles were investigated. METHODS: Fish specimens were fed diets spiked with melamine, melamine formaldehyde and poly vinyl chloride at 0.3% (3.0 g Kg-1) dietary inclusion for 45 days. Toxicity effect of these pl…

Ferroptosis Affects the Progression of Nonalcoholic Steatohepatitis via the Modulation of Lipid Peroxidation-Mediated Cell Death in Mice.

Oxidative stress and its associated lipid peroxidation play a key role in nonalcoholic steatohepatitis (NASH). Ferroptosis is a recently recognized type of cell death characterized by an iron-dependent and lipid peroxidation-mediated nonapoptotic cell death. We demonstrate the impact of ferroptosis on the progression of NASH induced by methionine/choline-deficient diet (MCD) feeding for 10 days. RSL-3 (a ferroptosis inducer) treatment showed decreased hepatic expression of glutathione peroxidase 4 (GPX4) and conversely increased 12/15-lipoxygenase, and apoptosis-inducing factor, indicating tha…

Comprehensive metabolomics identified lipid peroxidation as a prominent feature in human plasma of patients with coronary heart diseases.

Coronary heart disease (CHD) is a complex human disease associated with inflammation and oxidative stress. The underlying mechanisms and dia … tty acids (PUFAs), such as arachidonic acid and linoleic acid. Surprisingly, lipids associated with lipid peroxidation (LPO) pathways including oxidized PL and isoprostanes, isomers of prostaglandins, were significantly elevated in plasma of MI patients comparing to HC and SA, consistent with the notion that oxidative stress-induced LPO is a prominent feature in CHD …