RNAi-Mediated Knockdown of Acidic Ribosomal Stalk Protein P1 Arrests Egg Development in Adult Female Yellow Fever Mosquitoes, .

After taking a blood meal, the fat body of the adult female yellow fever mosquito, , switches from a previtellogenic state of arrest to an active state of synthesizing large quantities of yolk protein precursors (YPPs) that are crucial for egg development. The synthesis of YPPs is regulated at both the transcriptional and translational levels. Previously, we identified the cytoplasmic protein general control nonderepressible 1 (GCN1) as a part of the translational regulatory pathway for YPP synthesis.

General control nonderepressible 1 interacts with cationic amino acid transporter 1 and affects Aedes aegypti fecundity.

Background: The amino acid transporter protein cationic amino acid transporter 1 (CAT1) is part of the nutrient sensor in the fat body of mosquitoes. A member of the SLC7 family of cationic amino acid transporters, it is paramount for the detection of elevated amino acid levels in the mosquito hemolymph after a blood meal and the subsequent changes in gene expression in the fat body.

Methods: We performed a re-annotation of Aedes aegypti cationic amino acid transporters (CATs) and selected the C-terminal tail of CAT1 to perform a yeast two-hybrid screen to identify putative interactors of this protein.

Exploratory phosphoproteomics profiling of Aedes aegypti Malpighian tubules during blood meal processing reveals dramatic transition in function.

Malpighian tubules, the renal organs of mosquitoes, facilitate the rapid dehydration of blood meals through aquaporin-mediated osmosis. We performed phosphoproteomics analysis of three Malpighian tubule protein-libraries (1000 tubules/sample) from unfed female mosquitoes as well as one and 24 hours after a blood meal. We identified 4663 putative phosphorylation sites in 1955 different proteins.

Low Cluster of Differentiation 4+ T Cell Count in People Living with HIV/AIDS Undergoing Antiretroviral Therapy Visiting a Reference Laboratory: A Descriptive Cross-sectional Study.

Introduction: Human Immunodeficiency Virus is a lentivirus that causes human immunodeficiency virus infection and over time, acquired immunodeficiency syndrome. Cluster of Differentiation 4+ T cell count of people living with this infection play a vital role to determine infection progression and necessary treatment changes. This study was conducted to find out the prevalence of low Cluster of Differentiation 4+ T Cell Count in the People Living with human immunodeficiency virus/ acquired immunodeficiency syndrome.

Lifestyle, behavior, perception and practices of Nepalese during lockdown due to COVID-19 pandemic.

Introduction: COVID-19 infection is caused by a new strain of SARS CoV-2 virus, which transmits directly from person-to-person and has become a pandemic. To counteract this, actions related to mass quarantines or stay-at-home orders have been used termed as lockdown. This study aims to study lifestyle, behaviour, perception and practice of people regarding during the lockdown.

Molecular phylogeny and distribution of dengue virus serotypes circulating in Nepal in 2017.

Dengue virus (DENV) infection is endemic in Nepal. Although infection rates are reported annually, little information is available about the circulating viral serotypes and genotypes. Here, we report the results of a multicentre cross-sectional study of DENV serotypes and genotypes sampled from individuals with suspected DENV infection in Nepal in 2017.

Emergence of dengue in Nepal.

Dengue virus is a major health problem in Nepal. The endogenous dengue appeared in 2006 in the country with reported outbreaks in 2010, 2013 and 2016. Eleven years vertical data show there were sporadic cases in all the years and mostly adults between 25 and 40 years of age were infected with dengue virus.