quinine/سرطان

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Influence of antimalarials chloroquine, quinine, primaquine and mepacrine on the evolution of Ehrlich ascites tumour.

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Substances like imidazoles, benzimidazoles and also quinolines, whose chemical structure includes a heterocyclic nitrogen, are known to interfere with the microsomal oxidation and, in some cases, with the metabolism of drugs. Since chloroquine and primaquine exert this effect in vivo and in vitro,

Reversal of P-glycoprotein-mediated multidrug resistance by doxorubicin and quinine co-loaded liposomes in tumor cells.

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Multidrug resistance (MDR) is a major obstacle to successful clinical cancer chemotherapy. Currently, there is still unsatisfactory demand for innovative strategies as well as effective and safe reversing agent to overcome MDR. In this study, we developed a novel nanoformulation, in which

Suppression of tumor cell proliferation by quinine via the inhibition of the tumor necrosis factor receptor‑associated factor 6‑AKT interaction.

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Protein kinase B (AKT), is a pivotal component of pathways associated with cell survival, metabolism, invasion and metastasis. AKT mediates anti‑apoptotic and proliferative signaling in response to essential cytokines. Tumor necrosis factor receptor‑associated factor (TRAF)6, an E3 ubiquitin ligase,

Nonspecifically enhanced therapeutic effects of vincristine on multidrug-resistant cancers when coencapsulated with quinine in liposomes.

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The use of vincristine (VCR) to treat cancer has been limited by its dose-dependent toxicity and development of drug resistance after repeated administrations. In this study, we investigated the mechanism by which quinine hydrochloride (QN) acts as a sensitizer for VCR. Our experiments used three

[Effect of quinine on the multiple drug resistance and intracellular distribution of pirarubicin in LR73 tumor cells: a comparative study with verapamil and S9788 by confocal laser microspectrofluorometry].

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Effectiveness of chemotherapeutic treatment is limited by multidrug resistance (MDR) phenomenon mediated by the overexpression of P-glycoprotein 170 termed Pgp which serves as an efflux pump removing several types of cytostatic drugs from the MDR cells. Several small molecules, frequently lipophilic

Obstetrics, Gynæcology, and Pædiatrics: Antipyrine as an Anti-Galactagogue-Hyperemesis Gravidarum-Quinine during Labour-Toxic Materials Absorbed from the Bowel as a Cause of Version of the Uterus-Apnœa of Premature Infants-On the Use of Senecio in Disorders of Menstruation-Phenacetin for Pain in Cancer of the Uterus-Airol in Ophthalmia Neonatorum-New Methods of Resuscitating Still-Born and Feeble-Born Infants.

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Plasmodium falciparum: modulation by calcium antagonists of resistance to chloroquine, desethylchloroquine, quinine, and quinidine in vitro.

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Intrinsic interactions of calcium antagonists (broadly defined) and quinoline-containing antimalarial drugs were evaluated against chloroquine-sensitive and chloroquine-resistant clones of Plasmodium falciparum in vitro. Verapamil, D-600 (methoxyverapamil), Ro 11-2933/001 (tiapamil analogue),

The in vitro anti-tumor activity of some crude and purified components of blackseed, Nigella sativa L.

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A crude gum, a fixed oil and two purified components of Nigella sativa seed, thymoquinone (TQ) and dithymoquinone (DIM), were assayed in vitro for their cytotoxicity for several parental and multi-drug resistant (MDR) human tumor cell lines. Although as much as 1% w/v of the gum or oil was devoid of

Cancer chemoprevention by traditional chinese herbal medicine and dietary phytochemicals: targeting nrf2-mediated oxidative stress/anti-inflammatory responses, epigenetics, and cancer stem cells.

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Excessive oxidative stress induced by reactive oxygen species (ROS), reactive nitrogen species (RNS), and reactive metabolites of carcinogens alters cellular homeostasis, leading to genetic/epigenetic changes, genomic instability, neoplastic transformation, and cancer initiation/progression. As a

Urinary isothiocyanate levels, brassica, and human breast cancer.

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Brassica vegetable consumption (e.g., Chinese cabbage) provides isothiocyanates (ITC) and other glucosinolate derivatives capable of inducing Phase II enzymes [e.g., glutathione S-transferases (GSTM1, GSTT1, and GSTP1) and NADPH quinine oxidoreductase] and apoptosis, altering steroid hormone

Harmal Extract Induces Apoptosis of HCT116 Human Colon Cancer Cells, Mediated by Inhibition of Nuclear Factor-κB and Activator Protein-1 Signaling Pathways and Induction of Cytoprotective Genes.

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BACKGROUND Colorectal cancer (CRC) is a major cause of morbidity and mortality, being the second most common type of cancer worldwide in both men and women. It accounts yearly for approximately 9% of all new cases of cancers. Furthermore, the current chemotherapeutic regimens seem unsatisfactory, so

Antagonistic effect of alkaloids and saponins on bioactivity in the quinine tree (Rauvolfia caffra sond.): further evidence to support biotechnology in traditional medicinal plants.

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BACKGROUND The Quinine tree (Rauvolfia caffra) is used as a medicinal plant among traditional communities in many countries to manage tumors and other diseases associated with oxidative stress. To validate indigenous knowledge and possibly position this herb for technology uptake and utilization, we

Membrane potential, anion and cation conductances in Ehrlich ascites tumor cells.

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The fluorescence intensity of the dye 1,1'-dipropylox-adicarbocyanine (DiOC3-(5] has been measured in suspensions of Ehrlich ascites tumor cells in an attempt to monitor their membrane potential (Vm) under different ionic conditions, after treatment with cation ionophores and after hypotonic cell

Green Synthesis of Carbon Dots Derived from Walnut Oil and an Investigation of Their Cytotoxic and Apoptogenic Activities toward Cancer Cells.

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Purpose: This paper introduces a green and simple hydrothermal synthesis to prepare carbon quantum dots (CQDs) from walnut oil with a high quantum yield. In addition, cytotoxic and apoptogenic properties of the CQDs were analyzed on human cancer cell lines. Methods: The optical properties and

Synthesis and biological activity of fatty acid derivatives of quinine.

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Derivatives of quinine with fatty acids including polyunsaturated fatty acids were prepared. They showed moderate antimalarial activity as compared with quinine itself using Plasmodium falciparum. The activities were not dependent on whether the fatty acyl group was saturated or unsaturated. On the

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