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FhaA plays a key role in mycobacterial polar elongation and asymmetric growth.
mBio
January 2025
Analytical Biochemistry and Proteomics Unit, Instituto de Investigaciones Biológicas Clemente Estable and Institut Pasteur de Montevideo, Montevideo, Uruguay.
Unlabelled: Mycobacteria, including pathogens like , exhibit unique growth patterns and cell envelope structures that challenge our understanding of bacterial physiology. This study sheds light on FhaA, a conserved protein in , revealing its pivotal role in coordinating cell envelope biogenesis and asymmetric growth. The elucidation of the FhaA interactome in living mycobacterial cells reveals its participation in the protein network orchestrating cell envelope biogenesis and cell elongation/division.
View Article and Find Full Text PDFIncidence and estimated risk of residual transmission of hepatitis a virus and parvovirus B19 by blood transfusion in the state of Rio De Janeiro - Brazil: a retrospective study.
Virol J
January 2025
Laboratório de Desenvolvimento Tecnológico em Virologia, Instituto Oswaldo cruz, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil.
Background: Nonenveloped viruses, such as hepatitis A virus (HAV) and parvovirus B19 (B19V), are not inactivated by detergents and solvents commonly used to manufacture plasma derivatives. Cases of transfusion-transmitted HAV and B19V have already been described in several countries. This study aimed to determine the incidence of HAV and B19V asymptomatic infections in blood donors from Rio de Janeiro and evaluate the residual risk of transmission to blood derivative recipients.
View Article and Find Full Text PDFStructural and vascular assessment of the optic nerve head and macula in chronic Chagas disease.
Sci Rep
January 2025
Department of Ophthalmology, Federal University of São Paulo, São Paulo, SP, Brazil.
Chagas disease (CD), a parasitic infection, may have ocular repercussions in its cardiologic form, since a history of heart disease of other etiologies already has been established as a risk factor for neuropathies and maculopathies. The aim of the present study was to investigate preclinical structural and vascular optic nerve head (ONH) and macular parameters in patients with chronic CD. Nineteen patients with CD and 19 healthy subjects were evaluated with optical coherence tomography, optical coherence tomography angiography, and Laguna ONhE® software.
View Article and Find Full Text PDFInactivated SARS-CoV-2 induces acute skeletal muscle damage in human K18-hACE2 transgenic mice.
Life Sci
January 2025
Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil. Electronic address:
The pandemic due to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) resulted in over 7 million global fatalities and billions of individuals diagnosed with COVID-19. Acute and chronic muscle impairment associated with SARS-CoV-2 infection affected a substantial number of patients, leading to the development of symptoms such as fatigue, muscle pain, and exercise intolerance. Our study introduces an animal model to improve understanding of the pathogenicity caused by SARS-CoV-2 in human skeletal muscle.
View Article and Find Full Text PDFSynanthropic Rodents as Bioindicator of Human Pathogens in a Tourist Area of Brazil.
Ecohealth
January 2025
Department of Agricultural and Environmental Sciences, State University of Santa Cruz, Direction of the University: Campus Soane Nazaré de Andrade, Rod. Jorge Amado, Km 16 - Salobrinho, Ilhéus, Bahia, 45662-900, Brazil.
The black rat Rattus rattus is an exotic and synanthropic rodent prominent in Brazil and with high adaptation to urban areas. The species have an omnivorous diet feed on human food resources, potentially becoming infected and spreading infectious agents that cause zoonoses such as leptospirosis, leishmaniosis, Chagas disease, and toxoplasmosis, which are significant public health concerns in the country. We analyzed the epidemiologic profile of R.
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