thymoquinone/hypoxia

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Nigegladines A-C, Three Thymoquinone Dimers from Nigella glandulifera.

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Nigegladines A-C (1-3), three thymoquinone dimers, were isolated from the seeds of Nigella glandulifera. Racemic 1 possesses a unique tricyclo[5.4.0.12,6]dodecane carbon skeleton, and compounds 2 and 3 are two unusual diterpenoid alkaloids with indole cores. Their structures were determined by

Efficacy of thymoquinone in the treatment of experimental lipopolysaccharide-induced acute lung injury

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Introduction: Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are acute onset syndromes affecting the lungs, which develop for several reasons and are characterized by hypoxemia and diffuse lung infiltration. The

Reduction of side effects of hyperbaric oxygen therapy with thymoquinone treatment in rats.

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Hyperbaric oxygen (HBO₂) treatment results in elevated production of reactive oxygen species (ROS) that leads to cellular damage. Thymoquinone (TQ) is reported to have anti-inflammatory and antimicrobial activity and may suppress the generation of free radicals. The goal of this study is reduction

Thymoquinone protects against cobalt chloride-induced neurotoxicity via Nrf2/GCL-regulated glutathione homeostasis.

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The prevalence of neurodegenerative diseases worldwide has increased dramatically in the last decades. Hypoxia and oxidative stress play a central role in the pathogenesis of neurodegenerative diseases. Thymoquinone (TQ) is a monoterpenoid hydrocarbon compound that possesses potent antioxidant

Cold-Pressed Nigella Sativa Oil Standardized to 3% Thymoquinone Potentiates Omega-3 Protection against Obesity-Induced Oxidative Stress, Inflammation, and Markers of Insulin Resistance Accompanied with Conversion of White to Beige Fat in Mice

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Excessive lipid accumulation in white adipose tissue (WAT) results in adipocyte hypertrophy and chronic low-grade inflammation, which is the major cause of obesity-associated insulin resistance and consequent metabolic disease. The development of beige adipocytes in WAT (browning of WAT) increases

Thymoquinone Selectively Kills Hypoxic Renal Cancer Cells by Suppressing HIF-1α-Mediated Glycolysis.

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Several reports have shown that thymoquinone (TQ) effectively attenuates angiogenesis in cancer cells, resulting in suppression of tumor growth. However, it is not yet clear whether TQ reduces hypoxia-inducible factor-1α (HIF-1α) expression in hypoxic cancer cells. Here, we found that TQ was a novel

Regressions of Breast Carcinoma Syngraft Following Treatment with Piperine in Combination with Thymoquinone.

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Thymoquinone (TQ) and piperine, the active ingredients in cumin (Nigella sativa) and black pepper (Piper longum), respectively, exhibit various bioactivities including anticancer effects. The aim of the present study is to investigate the antineoplastic activity of a combination of TQ and piperine

Activation of NQO-1 mediates the augmented contractions of isolated arteries due to biased activity of soluble guanylyl cyclase in their smooth muscle.

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Earlier studies on isolated arteries demonstrated that the para-quinone thymoquinone, like acute hypoxia, induces augmentation of contractions, depending on biased activity of soluble guanylyl cyclase (sGC), generating inosine-3',5'-cyclic monophosphate (cyclic IMP) rather than

Potential Role of Natural Compounds as Anti-Angiogenic Agents in Cancer.

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BACKGROUND Neovascularization, also known as angiogenesis, is the process of capillary sprouting from pre-existing blood vessels. This physiological process is a hallmark event in normal embryonic development as blood vessels generally supply both oxygen and nutrients to the cells of the body. Any

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