Rezaei Ma, Ghahramani F,
Volume 5, Issue 1 (spring-summer[PERSIAN] 2011)
Abstract
Abstract Background and objectives: Acquired immune deficiency syndrome(AIDS) is one of the most well-known disease in the world .It is not only A heaththrapeutic problem but also with politic ,social, cultural and economic aspects. Paying attention to high-risk groups such as Lab staff is important. we decided to study and compare the knowledge of public and private Laboratories staff. Material and Methods: This cross sectional study, descriptive-analytic,was conducted on 350 personnel of private laboratories and educational centers of Shiraz University of Medical Sciences,2011.We collected Information by using a questionnaire including three parts of demographic characteristic questions, questions about knowledge in different fields of AIDS and those related to the performance of personnel. The results were reported as tables and graphs and analyzed by ANOVA,t-test and square. Results: The data, in different areas of AIDS, in public and private laboratories are similar and the difference statistically is not significant. Regarding to symptoms and treatment, the knowledge of privale Lab staff is higher than stste ones and this difference is significant (P=0.01).As a whole,the results show the knowledge of staff about the transmission modes(92.7%),the pathologic agent(99.2%),at risk people (61.2%)and preventive measure (53.1%).both group have good practice in wearing gloves and using disposable syringes.Regarding to disposing infectious waste material,private and state center practice are 92.6% and 77%,respectively. Conclusion: Based on the result,the knowledge relating to preventive procedures and at risk people of AIDS is not enough.Thereforeit is a necessity to hold in service training for Lab staff,stressing on disposing infectious waste materials. Key words: AIDS, laboratory personnel, knowledge, practice
Abdolhamid Zokaei, Mehran Ghahramani, Golbano Bolouri, Mahdieh Nassiri Avanaki,
Volume 17, Issue 2 (Mar-Apr 2023)
Abstract
Background and objectives: Considering the importance of aging and the associated physiological changes, as well as the effects of exercise on angiogenesis and cardiac index, this study aimed to compare continuous and periodic exercise in form of high-intensity interval training (HIIT) on serum levels of nitric oxide (NO) and vascular endothelial growth factor (VEGF) in old rats.
Methods: In this study, 30 old male rats were randomly divided into three groups: continuous training (n=10), HIIT (n=10), and control group (n=10). Interventions were performed for 8 weeks. To evaluate the research variables, 72 hours before the first training session and after the last training session, 3 ml of blood were taken from the tails of the rats. One-way analysis of variance was used to analyze the findings and Levene's test was used for assessing the homogeneity of variance. All statistical tests were performed using SPSS 17 software at a significance level of 0.05.
Results: Both training exercises significantly increased NO and VEGF levels compared to the control group (p<0.05).
Conclusion: The results of this study showed that 8 weeks of continuous and interval training cause a significant increase in the level of angiogenic factors in old rats. Therefore, these exercises and especially alternative exercises can be used as a suitable way to increase angiogenesis in the elderly.
