Discovery of a new class of potent pyrrolo[3,4-c]quinoline-1,3-diones based inhibitors of human dihydroorotate dehydrogenase: Synthesis, pharmacological and toxicological evaluation.

Twenty N-substituted pyrrolo[3,4-c]quinoline-1,3-diones 3a-t were synthesized by a cyclization reaction of Pfitzinger's quinoline ester precursor with the selected aromatic, heteroaromatic and aliphatic amines. The structures of all derivatives were confirmed by IR, H NMR, C NMR and HRMS spectra, while their purity was determined using HPLC techniques. Almost all compounds were identified as a new class ofpotent inhibitors against hDHODH among which 3a and 3t were the most active ones with the same IC values of 0.

Antiproliferative, antimigratory, and prooxidative potential of novel platinum(IV) complexes and resveratrol on breast cancer (MDA-MB-231) and choriocarcinoma (JEG-3) cell lines.

Platinum(IV) complexes offer the potential to overcome cisplatin resistance of cancer cells, with possible improved selectivity. Resveratrol, a natural polyphenol with anticancer and antioxidant capacity, could limit the possible side effects of chemotherapeutics on healthy cells. This study investigates the effects of platinum(IV) complexes containing some esters of the ethylenediamine-N,N'-di-S,S-(2,2'-dibenzyl)acetate acid (H -S,S-eddba), and resveratrol on proliferation, migration, and redox balance of breast cancer (MDA-MB-231), choriocarcinoma (JEG-3), and human lung fibroblast (MRC-5) cell line.

Evaluation of Toxic Effects of Novel Platinum (IV) Complexes in Female Rat Liver: Potential Protective Role of Resveratrol.

The use of cisplatin in chemotherapy may provoke a deteriorating impact in many vital organs, suggesting the need for more selective derivatives and effective protective cotreatments. This study assesses the effects of three novel Pt(IV) complexes containing ethyl-, propyl- and butyl-esters of the ethylenediamine-N, N'-di-S, S- (2,2'-dibenzyl) acetic acid on liver injury markers, redox parameters, and cell morphology of female rat liver tissue in comparison to cisplatin. In addition, the study evaluates the possible protective effects of resveratrol as well.

Hematoprotective effects and antioxidant properties of β-glucan and vitamin C against acetaminophen-induced toxicity: an experimental study in rats.

Acetaminophen is widely used as an over-the-counter analgesic and antipyretic drug. The aim of the present study was to investigate the pro-oxidative effects of acetaminophen (300 mg/kg/day ) and antioxidative effects of β-glucan (4 mg/kg/day ) and/or vitamin C (100 mg/kg/day ) on the blood parameters of treated rats. After 3 days of treatment, hematological and parameters of redox status were measured.

Role of selenium and vitamin C in mitigating oxidative stress induced by fenitrothion in rat liver.

Excessive use of organophosphate insecticides, including fenitrothion (FNT) can cause detrimental consequences in non-target organisms. Selenium (Se) and vitamin C (Vit C) possess protective abilities against various toxic compounds due to their antioxidative properties. Accordingly, the aim of the present study was to examine the possible ameliorative effects of Se and Vit C in hepatotoxicity induced by FNT.

The ameliorating effects of selenium and vitamin C against fenitrothion-induced blood toxicity in Wistar rats.

Fenitrothion is widely used organophosphate pesticide in agriculture and health programs, but besides, it causes several toxic effects. The present study was designed to evaluate the possible protective effects of selenium (0.5mg/kg b.

Antioxidative and haematoprotective activity of coenzyme Q10 and vitamin E against cadmium-induced oxidative stress in Wistar rats.

Cadmium (Cd) is a major environmental pollutant, which exerts adverse effects mainly by inducing oxidative stress. Coenzyme Q (CoQ) and vitamin E (VE), naturally occurring antioxidants, improve health condition by inactivating free radicals and enhancing antioxidative defence. The aim of our study was to investigate the protective role of CoQ and/or VE pretreatment against Cd-induced haematotoxicity.

Anxiety-like behavioural effects of extremely low-frequency electromagnetic field in rats.

In recent years, extremely low-frequency electromagnetic field (ELF-EMF) has received considerable attention for its potential biological effects. Numerous studies have shown the role of ELF-EMF in behaviour modulation. The aim of this study was to investigate the effect of short-term ELF-EMF (50 Hz) in the development of anxiety-like behaviour in rats through change hypothalamic oxidative stress and NO.

Protective effects of quercetin and vitamin C against nicotine-induced toxicity in the blood of Wistar rats.

Nicotine is a potential inducer of oxidative stress, through which it can damage numerous biological molecules. The aim of our study was to investigate the prooxidative effects of nicotine and protective (additive or synergistic) effects of quercetin and vitamin C in the blood of experimental animals, to determine whether the combination of these antioxidants might be beneficial for clinical purposes. Wistar albino rats were receiving intraperitoneal nicotine injection (0.

Prooxidative effects of aspartame on antioxidant defense status in erythrocytes of rats.

Since aspartame (L-aspartyl-L-phenylalanine methyl ester, ASP) is one of the most widely used artificial sweeteners, the aim of the present study was to investigate its effects on serum glucose and lipid levels as well as its effects on oxidative/antioxidative status in erythrocytes of rats. The experiment included two groups of animals: the control group was administered with water only, while the experimental group was orally administered with ASP (40 mg/kg b.w.