نتایج جستجو برای: ddt resistance

تعداد نتایج: 377829  

2011
Emmanuel Chanda Janet Hemingway Immo Kleinschmidt Andrea M. Rehman Varsha Ramdeen Faustina N. Phiri Sarel Coetzer David Mthembu Cecilia J. Shinondo Elizabeth Chizema-Kawesha Mulakwa Kamuliwo Victor Mukonka Kumar S. Baboo Michael Coleman

BACKGROUND In line with the Global trend to improve malaria control efforts a major campaign of insecticide treated net distribution was initiated in 1999 and indoor residual spraying with DDT or pyrethroids was reintroduced in 2000 in Zambia. In 2006, these efforts were strengthened by the President's Malaria Initiative. This manuscript reports on the monitoring and evaluation of these activit...

2014
Laura D. Steele William M. Muir Keon Mook Seong M. Carmen Valero Madhumitha Rangesa Weilin Sun John M. Clark Brad Coates Barry R. Pittendrigh

The Drosophila melanogaster 91-R and 91-C strains are of common origin, however, 91-R has been intensely selected for dichlorodiphenyltrichloroethane (DDT) resistance over six decades while 91-C has been maintained as the non-selected control strain. These fly strains represent a unique genetic resource to understand the accumulation and fixation of mutations under laboratory conditions over de...

Journal: :Genetics 1998
G Yan D D Chadee D W Severson

Information on genetic variation within and between populations is critical for understanding the evolutionary history of mosquito populations and disease epidemiology. Previous studies with Drosophila suggest that genetic variation of selectively neutral loci in a large fraction of genome may be constrained by fixation of advantageous mutations associated with hitchhiking effect. This study ex...

2010
Landon Pastushok Michelle Hanna Wei Xiao

In response to replication-blocking DNA lesions, proliferating cell nuclear antigen (PCNA) can be conjugated with a single ubiquitin (Ub) or Lys63-linked Ub chains at the Lys164 residue, leading to two modes of DNA damage tolerance (DDT), namely translesion synthesis (TLS) and error-free DDT, respectively. Several reports suggest a model whereby monoubiquitylated PCNA recruits TLS polymerases t...

Journal: :Acta crystallographica. Section D, Biological crystallography 2003
Liqing Chen Pamela R Hall Xiaoyin E Zhou Hilary Ranson Janet Hemingway Edward J Meehan

Glutathione S-transferases (GSTs) are a major family of detoxification enzymes which possess a wide range of substrate specificities. Most organisms possess many GSTs belonging to multiple classes. Interest in GSTs in insects is focused on their role in insecticide resistance; many resistant insects have elevated levels of GST activity. In the malaria vector Anopheles gambiae, elevated GST leve...

Journal: :Proceedings of the New Zealand Weed and Pest Control Conference 1968

Journal: :Proceedings of the New Zealand Weed and Pest Control Conference 1965

Journal: :Journal of vector borne diseases 2010
R K Singh R C Dhiman P K Mittal M K Das

Development of resistance to DDT in malaria vectors is being reported from various parts of India. Jharkhand state in India is one of the high malaria endemic states with Plasmodium falciparum accounting for 44% of the cases1. In order to find out the rationale of using DDT in vector control, this study was carried out on insecticide susceptibility of malaria vectors in 12 endemic villages of s...

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