Results 71 to 80 of about 2,190,858 (340)

COMPARATIVE GENOMICS OF VECTOR AND NON-VECTOR INSECTS: UNCOVERING MOLECULAR DETERMINANTS OF VECTOR COMPETENCE [PDF]

Acta Scientifica Malaysia
Vector competence is the inherent capacity of an insect to transmit diseases to plants and other organisms. It’s a complex feature influenced by several factors such as their physiology, microbiology, environment and some genetic factors.
Arina Akter Nupur, Md. Mamunur Rahman
doaj   +1 more source

Identifying Knowledge Gaps through the Systematic Review of Temperature-Driven Variability in the Competence of Aedes aegypti and Ae. albopictus for Chikungunya Virus

Pathogens, 2023
Temperature is a well-known effector of several transmission factors of mosquito-borne viruses, including within mosquito dynamics. These dynamics are often characterized by vector competence and the extrinsic incubation period (EIP).
Rebecca C. Christofferson, Erik A. Turner, Víctor Hugo Peña-García   +2 more
doaj   +1 more source

Entomological assessment of dengue virus transmission risk in three urban areas of Kenya.

PLoS Neglected Tropical Diseases, 2019
Urbanization is one of the major drivers of dengue epidemics globally. In Kenya, an intriguing pattern of urban dengue virus epidemics has been documented in which recurrent epidemics are reported from the coastal city of Mombasa, whereas no outbreaks ...
Sheila B Agha, David P Tchouassi, Michael J Turell, Armanda D S Bastos, Rosemary Sang   +4 more
doaj   +1 more source

Experimental infection and vector competence of Zika virus in Aedes aegypti mosquitoes from Acapulco, Guerrero, Mexico

Salud Pública de México, 2020
Objective. To gain a better understanding of the Zika virus (ZIKV) vector transmission in Mexico, we determined the vector competence of a local population of Ae. aegypti (Aca­pulco, Guerrero) for a strain of ZIKV isolated from a Mexican febrile patient.
Nayeli Sánchez-Casiano, Jorge Cime-Castillo, Marbella Ovilla-Muñoz, Judith Ramírez-Arroyo, Casandra González-Acosta, Miguel Moreno-García, Fabián Correa-Morales, Victoria Pando-Robles   +7 more
doaj   +1 more source

Aedes aegypti vector competence studies: A review

Infection, Genetics and Evolution, 2019
Aedes aegypti is the primary transmitter of the four viruses that have had the greatest impact on human health, the viruses causing yellow fever, dengue fever, chikungunya, and Zika fever. Because this mosquito is easy to rear in the laboratory and these viruses grow in laboratory tissue culture cells, many studies have been performed testing the ...
Jayme A. Souza-Neto, Jeffrey R. Powell, Mariangela Bonizzoni   +2 more
openaire   +4 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

The neovolcanic axis is a barrier to gene flow among Aedes aegypti populations in Mexico that differ in vector competence for Dengue 2 virus. [PDF]

PLoS Neglected Tropical Diseases, 2009
Aedes aegypti is the main mosquito vector of the four serotypes of dengue virus (DENV). Previous population genetic and vector competence studies have demonstrated substantial genetic structure and major differences in the ability to transmit dengue ...
Saul Lozano-Fuentes, Ildefonso Fernandez-Salas, Maria de Lourdes Munoz, Julian Garcia-Rejon, Ken E Olson, Barry J Beaty, William C Black   +6 more
doaj   +1 more source

Hypoxia-induced tracheal elasticity in vector beetle facilitates the loading of pinewood nematode

eLife, 2023
Many pathogens rely on their insect vectors for transmission. Such pathogens are under selection to improve vector competence for their transmission by employing various tissue or cellular responses of vectors.
Xuan Tang, Jiao Zhou, Tuuli-Marjaana Koski, Shiyao Liu, Lilin Zhao, Jianghua Sun   +5 more
doaj   +1 more source

Analysis of switching dynamics with competing support vector machines [PDF]

Proceedings of the 2002 International Joint Conference on Neural Networks. IJCNN'02 (Cat. No.02CH37290), 2003
We present a framework for the unsupervised segmentation of switching dynamics using support vector machines. Following the architecture by Pawelzik et al., where annealed competing neural networks were used to segment a nonstationary time series, in this paper, we exploit the use of support vector machines, a well-known learning technique.
Chang, Ming-Wei, Lin, Chih-Jen, Weng, R.C.   +2 more
openaire   +3 more sources

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source