Comparative study of Insecticide potential of Methyl parathion and diazinon in Drosophila melanogaster

Author(s):  
Suman Sahoo ◽  
Mausumi Ari Acharyya ◽  
Rajiniraja Muniyan

Several reports indicate that many chemical pollutants which are widely spread in the environment, such as insecticide, pesticide and drugs are mutagenic in various test system. These findings reflect an urgent need to draw more attention to the possible genetic hazards of such pollutants to public health. The present investigation of working hypothesis deals with the effects of two insecticides viz. Methyl Parathion (MeP) and Diazinon (DZ) on non-target organism Drosophila melanogaster. We have carried out the chromosomal aberration test with various concentration for insecticides (MeP and DZ) which infer properties like ectopic pairing, inversion loop, puffing, fusion, and asynapsis. Chromosomal aberration result shows significant effects with DZ even in less concentration (0.02ppm) when compared with MeP (0.2ppm). The present study proposes that diazinon is more cytotoxic than methyl parathion in Drosophila melanogaster.

2007 ◽  
Vol 64 (11) ◽  
pp. 2210-2222 ◽  
Author(s):  
Deborah L. Billings ◽  
Barbara B. Crane ◽  
Janie Benson ◽  
Julie Solo ◽  
Tamara Fetters

1984 ◽  
Vol 4 (11) ◽  
pp. 2535-2539
Author(s):  
W Y Chooi ◽  
E Otaka

Specific antibodies directed against Drosophila melanogaster acidic ribosomal protein S14 were used in a comparative study of eucaryotic and procaryotic ribosomes by immunoblotting and enzyme-linked immunosorbent assays. Common antigenic determinants and, thus, structural homology were found between D. melanogaster, Saccharomyces cerevisiae (S25), rabbit liver (S12), Bacillus subtilis (S6), and Escherichia coli (S6) ribosomes.


2021 ◽  
Vol 10 (1) ◽  
pp. 19-19
Author(s):  
Tahereh Changiz ◽  
Mahasti Alizadeh

Background: Community medicine and public health are the core subjects in medical education. One of the main competencies of general physicians in the national curriculum is having knowledge and skills in health promotion and disease prevention in the health system. Any curriculum revision in community medicine departments needs to incorporate the evidence and use pioneer countries’ experiences in this issue. This study aims to compare community medicine and public health courses in medical schools between Iran and selected universities in North America. Methods: The elements of a community medicine curriculum for medical students were compared in a descriptive-comparative study using the Bereday model. These elements included objectives and competencies, educational strategies, teaching and learning methods, assessment, and educational fields in a community medicine curriculum in Iran and in selected universities in North America. A literature search was conducted in CINAHL, SCOPUS, MEDLINE, Web of Science, EBSCO, and on university websites. Results: Essential aspects of community-based strategies among community medicine and public health curriculum of general medicine in universities in Canada and the United States included a longitudinal approach, training in urban and rural primary care centers, teaching by family physicians and health center staff, a spiral curriculum, focus on social determinants of health, taking of social and cultural histories and social prescriptions, learning teamwork, and using LIC (Longitudinal Integrated Curriculum). Conclusion: The objective of community medicine and public health curriculum in selected North American universities was to prepare general practitioners who work in Level 2 and 3 hospitals and to improve their skills to provide high-quality services to the community. Some of the successful points in the selected universities that could be replicated in Iranian faculties of medicine included using integration strategy, a spiral curriculum, and an LIC approach.


2022 ◽  
pp. 279-306
Author(s):  
Claudio Luis de Camargo Penteado ◽  
Eva Campos-Domínguez ◽  
Patrícia Dias dos Santos ◽  
Denise Hideko Goya ◽  
Mario Mangas Núñez ◽  
...  

This chapter addresses the creation of political conflict on Twitter in a comparative study between Brazil and Spain. Based on an analysis of the political debate on dealing with two countries' health crises, it analyses the most retweeted messages published during the first week of vaccination in Europe and the Americas. Firstly, it analysed the general characteristics of the online debate on the immunisation of COVID-19. Secondly, it carried out an analysis of information disorder in each country. Although governmental positions in both countries are opposed, the results allow establishing common patterns of polarized profiles in both countries that question the management of the pandemic. It can be seen how political polarization is shaped as a characteristic of disinformation in both countries. That reveals that, after the health crisis, there is a crisis of democratic institutions that impact public health actions, but specifically to combat COVID-19.


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