RESUMO
OBJECTIVE: The reported high level of stress among dental students and its consequences, considering the known benefits of background music (BM). This study was designed to evaluate students' level of stress and impact of BM on their efficiency of work, performance, and learning ability during preclinical laboratory. MATERIALS AND METHODS: In this cross-sectional questionnaire study, 61 preclinical students from the College of Dentistry, Ajman university-Fujairah campus who met the defined inclusion criteria participated. After a semester of the normal laboratory without BM, various genres of BM were introduced in the laboratory. Psychological stress assessment was done using the perceived stress scale. Students were asked to fill up a written feedback questionnaire at the end of 6 weeks of BM. Descriptive statistics and Chi-square test were used to study the statistical relationships among groups. RESULTS: About 100% male and female students were found to be highly stressed due to exams and tests, 98% were stressed due to lack of time in the laboratory. About 82.5% females and 76% of males sample population expressed passion for music and also reported BM to be helpful to reduce stress in the preclinical laboratory and also to increase their concentration level. CONCLUSION: A strong positive relation has been shown in the reduction of stress with the BM in the preclinical laboratory.
RESUMO
OBJECTIVE: To see the effects of Nigella sativaon acetylsalicylic acid-induced nephrotoxicity in albino rats. STUDY DESIGN: An experimental study. PLACE AND DURATION OF STUDY: The Anatomy Department of University of Health Sciences, Lahore, from January 2014 to December 2015. METHODOLOGY: Thirty-two female albino rats were divided into four groups. Group A(control) was given single dose of 10 mg/100 gm body weight of 1% methylcellulose, orally. Group B and C were treated with oral 1000 mg/kg acetylsalicylic acid as a single dose. Group D was given 250 mg/kg ethanolic extract of Nigella sativa(NSE) by oral gavage followed by single dose of 1000 mg/kg acetylsalicylic acid on 1st day of experiment; after that only NSE was continued till 7 days. Animals of groups A, C and D were sacrificed on day 8 and that of group B on day 2 of experiment. Cardiac puncture was performed to draw blood from each animal for renal function tests. Animals were evaluated for gross (Paired kidney weight, body weight, relative tissue body weight index) as well as for biochemical (Serum urea and creatinine) parameters. RESULTS: Gross as well as biochemical parameters were markedly impaired in group B, but statistically significant improvement was noticed in Nigella sativatreated group. There was no self recovery in group C. CONCLUSION: Ethanolic extract of Nigella sativahas a protective role against acetylsalicylic acid-induced nephrotoxicity in albino rats.
