ABSTRACT
Background: Mosquito repellants and many other insecticides contain Pyrethrins and Pyrethroids. Pyrethroids are the most commonly used household insecticides derived from Chrysanthemum flowers. These insecticides can cause several clinical problems like allergies, asthma attacks, wheezing and bronchospasm. Despite all associated side effects, pyrethroids are still considered to be least toxic. In the present study the effects of pyrethroids on lung function parameters of school children were Analyzed
Method: The study was conducted at Government Girls Primary School, Sita Nagar, Karachi including 50 children 6-10 years old. They were divided equally into two groups. Group A [exposed to insecticidal spray] and group B [exposed to combustible coil]
Result: The correlations between the insecticides [pyrethroids], and the spirometry variables [FVC, FEV1, PEF, and FEV1/FVC ratio] by linear regression analysis confirmed that pyrethroids had a strong correlation with the spirometric values under study exemplified by the significant decrease in FVC and FEV1 after exposure to insecticidal spray
Conclusion: Highly significant values of FVC and FEV1 were observed after combustible mosquito coil exposure. There was no association between FEV1/FVC ratio, PEF, and exposure to insecticidal spray and mosquito coils
ABSTRACT
Objective: To compare the pre and post exercise SaO[2] values in males and females
Study design: Comparative cross-sectional study
Study setting: Department of Physiology, Baqai Medical University, Karachi
Study duration: 15[th] October, 2014 to 26[th] February, 2015
Material and method: Two hundred healthy participants having age ranges from 18-24 years were selected. With their consent, demographic data was recorded. Before exercise, participants' SaO[2] was measured by Pulse Oximeter. Participants were then subjected to run 3 Km on a motorized treadmill. Post exercising SaO[2] was recorded immediately after exercise. Data analyzed on SPSS version 20.0 by applying t-test with significant p<0.05
Results: The pre and post exercise changes were evaluated with age groups of <20 years and >/=20 years and with BMI among both genders. The results have shown a significant difference p<0.05 in pre and post exercise SaO[2] levels in both genders However, with both genders of same age groups [<20 and >/=20 years] and same BMI categories, the pre and post exercise SaO[2] changes were found to be non significant
Conclusion: The study has shown that all the values of SaO[2] were within the normal ranges. Whereas there is no significant difference with the post exercise SaO[2] in the same age groups and BMI categories of both genders due to the limited range of age and participants