Cardioprotective and antioxidant effects of taxifolin and vitamin C against diazinone-induced myocardial injury in rats

In Iraq, excessive exposure to insecticides is increasingly becoming uncontrollable, the objective of this work was to assess the possible ameliorative role of taxifolin and vitamin c against diazinon-induced myocardial injury in rats. 36 sprague female rats divided into 6 groups of 6 rats each. Group 1 received diazinone 20 mg/kg gavaged for 30 days. Group 2 received taxifolin (25 mg/kg) and vitamin C (100 mg /kg) co-administered together and gavaged daily for 30 days before oral diazinone (20 mg/kg). Group 3 and group 4 were treated with taxifoline (25 mg/kg) and vitamin C (100 mg /kg) respectively, gavaged separately for 30 days before diazinone (20 mg/kg) administration. group 5 was considered as control 1 received taxifolin (25 mg/kg) and vitamin C (100 mg /kg) co-administered together and gavaged daily for 30 days. The last group, group 6 considered as control 2 which received vehicle of diazinon. Rats' weights, water and food intake were measured and the general vital signs of rats were observed and noted. At the end of study, rats are sacrificed, blood withdrawn for biochemical analysis and heart were excised for glutathione peroxidase and pathological evaluation. Significant increase in body weights in all treated and control groups except group 1. Troponin, LDH, AST and ALT levels were significantly increased in group 1 revealing the existence of ischemia and damage in hearts. Treatment with taxifolin and vitamin C combination reduced their levels significantly to concentrations comparable to that in the control groups. Such finding supported by histopathological observation. Moreover, this study showed that diazinon administration significantly deteriorated lipid profile, co-administration of taxifolin and vitamin C was resulted in a significant improvement in lipid profile associated with increased in glutathione peroxidase values showing significant improvement in antioxidant levels. Sub-acute administration of pharmacological doses of taxifolin and vitamin C exerts cardioprotective effects against diazinon-induced myocardial injury in rats.

Impact of Abuse of Topical Corticosteroids and Counterfeit Cosmetic Products for the Face: Prospective Demographic Study in Basrah City, Iraq

BACKGROUND

Topical corticosteroids are highly effective compounds that are now widely used in dermatology for the treatment of various autoimmune and inflammatory disorders. Many corticosteroids are misused for diverse indications such as pigmentation, acne, pruritus, fungal or bacterial infections, rashes, and numerous other conditions. These products contain various constituents, most of which have hazards or toxic elements.

OBJECTIVE

The aim is to raise awareness among individuals in the city of Basrah, Iraq about the uses and abuses of applying fake products to the face to inform the consumers about potential harmful adverse effects.

METHODS

This study was a prospective multi-center clinic questionnaire of a demographic that involved the outpatient dermatology departments at the Al-Basrah teaching hospital and the Abu Al-Khaseeb hospital as well as the private clinics of two dermatology specialists in Basrah. A total of 235 patients with facial dermatoses secondary to the application of topical corticosteroids and counterfeit products or, a mixed formulation, for cosmetic purposes were recruited.

RESULTS

Most enrolled patients were female with 10-20 years aged group. The majority applied these products due to friends or pharmacy encouragement. Motivations for the use of these products included: skin fairness, lightening, and general cosmetic. Interestingly, acne and erythema were common whilst, atrophy, dryness, telangiectasia, and hirsutism appear on long- term use only.

CONCLUSION

The abuse of counterfeit cosmetic products and topical corticosteroids is in progress and they have adverse health events. There are many causes behind the abuse but the lack of education, lack of restriction, profitable for sellers and low prices are the main.

Vitamin C, omega-3 and paracetamol pharmacokinetic interactions using saliva specimens as determiners

Background With its low side effects profile and availability as an over-the-counter drug, paracetamol has been utilized extensively worldwide as an antipyretic and analgesic agent for decades. This is associated with the increasing concern over its ease of access and/or unawareness of the consumers to this issue of paracetamol-induced hepatotoxicity. Paracetamol-induced liver injury today is a big problem where most of the researchers are interested in the possible role of the naturally available antioxidants to ameliorate hepatotoxicity through kinetic interference. So the present study was designed to evaluate the effect of vitamin C and omega-3 on the pharmacokinetic property of paracetamol. Methods Six young (average age 29) healthy volunteers participated in the study. The study included three consecutive periods, each of which preceded by overnight fasting and separated by 6 day washout periods. The first period involved the ingestion of a single paracetamol dose. The second one included the ingestion of paracetamol and vitamin C concomitantly, and the final period included paracetamol plus omega-3. Saliva samples were collected and prepared for High-performance liquid chromatography analysis. Results There was a significant increase in saliva paracetamol level after 30 min of administration when given concomitantly with vitamin C compared with the remaining groups. No significant differences in the paracetamol concentration profile between the subjects for each group were observed at 60, 90, 120 and 150 min in all treated groups. Conclusion Concurrent administration of vitamin C with paracetamol increases significantly the Cmax level (maximum measured concentration) in saliva and increases the extent of absorption and the possibility of drug-drug interaction and risk of side effects.