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https://www.readbyqxmd.com/read/29668141/-prevalence-and-risk-factors-associated-to-tuberculosis-and-non-tuberculous-mycobacterial-infections-in-hiv-positive-patients-in-bogot%C3%A3
#1
Magda Beltrán-León, Francy Pérez-Llanos, Liliana Sánchez, Carlos Parra-López, Myriam Navarrete, Ricardo Sánchez, Carlos Awad, Ana María Granada, Edgardo Quintero, Óscar Briceño, Óscar Cruz, Martha Isabel Murcia
INTRODUCTION: Tuberculosis is one of the most widely distributed infectious diseases worldwide. It is the most common cause of mortality among AIDS patients. In Colombia, 12,918 tuberculosis cases were notified, and 926 deaths were reported in 2015. OBJECTIVE: To determine the prevalence and risk factors associated to mycobacterial infections in HIVpositive patients in two public hospitals from Bogotá. MATERIALS AND METHODS: A prospective and descriptive study was carried out by an active search for tuberculosis cases and non-tuberculous mycobacterial infections in HIV-positive patients...
March 15, 2018: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29667004/the-development-of-hiv-vaccines-targeting-gp41-membrane-proximal-external-region-mper-challenges-and-prospects
#2
REVIEW
Huan Liu, Xiaojie Su, Lulu Si, Lu Lu, Shibo Jiang
A human immunodeficiency virus type-1 (HIV-1) vaccine which is able to effectively prevent infection would be the most powerful method of extinguishing pandemic of the acquired immunodeficiency syndrome (AIDS). Yet, achieving such vaccine remains great challenges. The membrane-proximal external region (MPER) is a highly conserved region of the envelope glycoprotein (Env) gp41 subunit near the viral envelope surface, and it plays a key role in membrane fusion. It is also the target of some reported broadly neutralizing antibodies (bNAbs)...
April 17, 2018: Protein & Cell
https://www.readbyqxmd.com/read/29666292/human-immunodeficiency-virus-tat-protein-aids-v-region-somatic-hypermutation-in-human-b-cells
#3
Xiaohua Wang, Zhi Duan, Guojun Yu, Manxia Fan, Matthew D Scharff
Long-term survivors of human immunodeficiency virus (HIV) infection have been shown to have a greatly increased incidence of B cell lymphomas. This increased lymphomagenesis suggests some link between HIV infection and the destabilization of the host B cell genome, a phenomenon also suggested by the extraordinary high frequency of mutation, insertion, and deletion in the broadly neutralizing HIV antibodies. Since HIV does not infect B cells, the molecular mechanisms of this genomic instability remain to be fully defined...
April 17, 2018: MBio
https://www.readbyqxmd.com/read/29665775/contact-among-healthcare-workers-in-the-hospital-setting-developing-the-evidence-base-for-innovative-approaches-to-infection-control
#4
Krista M English, Joanne M Langley, Allison McGeer, Nathaniel Hupert, Raymond Tellier, Bonnie Henry, Scott A Halperin, Lynn Johnston, Babak Pourbohloul
BACKGROUND: Nosocomial, or healthcare-associated infections (HAI), exact a high medical and financial toll on patients, healthcare workers, caretakers, and the health system. Interpersonal contact patterns play a large role in infectious disease spread, but little is known about the relationship between health care workers' (HCW) movements and contact patterns within a heath care facility and HAI. Quantitatively capturing these patterns will aid in understanding the dynamics of HAI and may lead to more targeted and effective control strategies in the hospital setting...
April 17, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29664204/characterization-and-epitope-mapping-of-a-panel-of-monoclonal-antibodies-against-hiv-1-matrix-protein
#5
Zhiqing Zhang, Feng Zhang, Shimeng Bai, Jiaming Qiao, Honglin Shen, Fang Huang, Shuangquan Gao, Shaowei Li, Ying Gu, Ningshao Xia
The HIV-1 Gag precursor protein (p55) is the main structural protein comprising the matrix (MA/p17), capsid (CA/p24), and nucleocapsid (NC/p7) proteins, and is uniquely responsible for virion assembly within the virus life cycle. The MA protein plays a critical role in plasma membrane targeting and envelope glycoprotein (Env) uptake during virion assembly. Yet, when viral infection occurs, the MA protein may also be involved in virion uncoating, dissociating from the plasma membrane, and participating in the nuclear importation process...
April 17, 2018: Biotechnology and Applied Biochemistry
https://www.readbyqxmd.com/read/29663523/malignant-lymphoma-in-the-hiv-positive-patient
#6
REVIEW
Anne Meister, Marcus Hentrich, Christoph Wyen, Kai Hübel
The introduction of combination antiretroviral therapy (cART) drastically improved performance status, immune function and life expectancy of HIV-infected individuals. In addition, incidence of opportunistic infections and of AIDS-defining malignancies declined. Nevertheless, aggressive non-Hodgkin's lymphoma still remains the leading cause of AIDS-related deaths. The availability of cART, however, significantly improved the therapeutic options for HIV-positive patients with lymphomas. Diffuse large B-cell lymphoma, Burkitt's lymphoma, or Hodgkin lymphoma have increasingly become curable diseases...
April 16, 2018: European Journal of Haematology
https://www.readbyqxmd.com/read/29662676/-toxoplasma-gondii-exposure-and-epilepsy-a-matched-case-control-study-in-a-public-hospital-in-northern-mexico
#7
Cosme Alvarado-Esquivel, Yazmin Del Rosario Rico-Almochantaf, Jesús Hernández-Tinoco, Gerardo Quiñones-Canales, Luis Francisco Sánchez-Anguiano, Jorge Torres-González, Eda Guadalupe Ramírez-Valles, Andrea Minjarez-Veloz
Objectives: This study aimed to determine the association between infection with Toxoplasma gondii and epilepsy in patients attended to in a public hospital in the northern Mexican city of Durango. Methods: We performed an age- and gender-matched case-control study of 99 patients suffering from epilepsy and 99 without epilepsy. Sera of participants were analyzed for anti- T. gondii IgG and IgM antibodies using commercially available enzyme-linked immunoassays. Seropositive samples to T...
2018: SAGE Open Medicine
https://www.readbyqxmd.com/read/29661260/implementing-routine-blood-borne-virus-testing-for-hcv-hbv-and-hiv-at-a-london-emergency-department-uncovering-the-iceberg
#8
S Parry, N Bundle, S Ullah, G R Foster, K Ahmad, C Y W Tong, S Balasegaram, C Orkin
UK guidelines recommend routine HIV testing in high prevalence emergency departments (ED) and targeted testing for HBV and HCV. The 'Going Viral' campaign implemented opt-out blood-borne virus (BBV) testing in adults in a high prevalence ED, to assess seroprevalence, uptake, linkage to care (LTC) rates and staff time taken to achieve LTC. Diagnosis status (new/known/unknown), current engagement in care, and severity of disease was established. LTC was defined as patient informed plus ⩾1 clinic visit. A total of 6211/24 981 ED attendees were tested (uptake 25%); 257 (4...
April 17, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29660296/influence-of-aids-antiretroviral-therapy-on-the-growth-pattern
#9
REVIEW
Ana Paula Brigatto Simões Golucci, Fernando Augusto Lima Marson, Mariana Freitas Fedato Valente, Maira Migliari Branco, Camila Carbone Prado, Roberto José Negrão Nogueira
OBJECTIVES: Human immunodeficiency virus infection can result in the early impairment of anthropometric indicators in children and adolescents. However, combined antiretroviral therapy has improved, in addition to the immune response and viral infection, the weight and height development in infected individuals. Therefore, the objective was to evaluate the effect of combined antiretroviral on the growth development of human immunodeficiency virus infected children and adolescents. SOURCE OF DATA: A systematic review was performed...
April 13, 2018: Jornal de Pediatria
https://www.readbyqxmd.com/read/29659751/a-randomized-placebo-controlled-trial-of-the-quadrivalent-hpv-vaccine-in-hiv-infected-adults-age-27-years-or-older-aids-clinical-trials-group-protocol-a5298
#10
Timothy J Wilkin, Huichao Chen, Michelle S Cespedes, Jorge T Leon-Cruz, Catherine Godfrey, Elizabeth Y Chiao, Barbara Bastow, Jennifer Webster-Cyriaque, Qinghua Feng, Joan Dragavon, Robert W Coombs, Rachel M Presti, Alfred Saah, Ross D Cranston
Background: Adults living with HIV are at increased risk for anal and oropharyngeal cancer caused by human papillomavirus (HPV). The efficacy of HPV vaccines in this population is unknown. Methods: Phase 3, double-blind, randomized controlled trial. We assigned HIV-infected adults age 27 or older to the quadrivalent HPV (Types 6, 11, 16, 18) vaccine or placebo (1:1) stratified by sex and presence of anal high-grade squamous intraepithelial lesions on biopsy (bHSIL)...
April 5, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29656416/women-infected-with-hiv-and-the-impact-of-associated-sexually-transmitted-infections
#11
REVIEW
Somaia Reda, Fernanda Aguiar Gonçalves, Melissa Mello Mazepa, Newton Sérgio de Carvalho
OBJECTIVE: To review the relationship between concomitant sexually transmitted infections in women infected with HIV. METHODS: PubMed and Scopus were searched for articles published in English and Portuguese between January 1, 1994, and December 31, 2015, using relevant keywords, including AIDS, HIV, female genital diseases, and sexually transmitted infections. Articles that associated sexually transmitted infections with HIV-infected women were selected for inclusion...
April 14, 2018: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/29656308/bacterial-lipid-modification-of-icp11-and-a-new-elisa-system-applicable-for-wssv-infection-detection
#12
Vidhyapriya Murugan, Krishnan Sankaran
In ELISA, a popular analytical diagnostic tool, the stable non-covalent immobilization (coating) of hydrophilic proteins/peptides on to hydrophobic polystyrene surface has remained a major common challenge. Recombinant bacterial lipid modification of proteins in Escherichia coli system has been shown in this study to solve this problem owing to the hydrophobic anchorage provided by three fatty acyl groups in N-acyl-S-diacylglyceryl Cys at the N-terminus. Exploiting this first post-translational protein engineering, the most abundantly expressed white spot syndrome viral protein ICP11 was lipid-modified and tested as a new target in a new ELISA method useful to shrimp farming...
April 14, 2018: Marine Biotechnology
https://www.readbyqxmd.com/read/29651836/near-infrared-light-activated-thermosensitive-liposomes-as-efficient-agents-for-photothermal-and-antibiotic-synergistic-therapy-of-bacterial-biofilm
#13
Yu Zhao, Xiaomei Dai, Xiaosong Wei, Yunjian Yu, Xuelei Chen, Xinge Zhang, Chaoxing Li
Biofilm is closely related to chronic infections and is difficult to eradicate. Development of effective therapy strategies to control biofilm infection is still challenging. Aiming at biofilm architecture, we designed and prepared near infrared-activated thermosensitive liposomes with photothermal and antibiotic synergistic therapy capacity to eliminate P. aeruginosa biofilm. The liposomes with positive charge and small size aided to enter the biofilm microchannels and locally released antibiotics in infection site...
April 13, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29651117/field-validation-of-recombinant-antigen-immunoassays-for-diagnosis-of-lassa-fever
#14
Matthew L Boisen, Jessica N Hartnett, Jeffrey G Shaffer, Augustine Goba, Mambu Momoh, John Demby Sandi, Mohamed Fullah, Diana K S Nelson, Duane J Bush, Megan M Rowland, Megan L Heinrich, Anatoliy P Koval, Robert W Cross, Kayla G Barnes, Anna E Lachenauer, Aaron E Lin, Mahan Nekoui, Dylan Kotliar, Sarah M Winnicki, Katherine J Siddle, Michael Gbakie, Mbalu Fonnie, Veronica J Koroma, Lansana Kanneh, Peter C Kulakosky, Kathryn M Hastie, Russell B Wilson, Kristian G Andersen, Onikepe O Folarin, Christian T Happi, Pardis C Sabeti, Thomas W Geisbert, Erica Ollmann Saphire, S Humarr Khan, Donald S Grant, John S Schieffelin, Luis M Branco, Robert F Garry
Lassa fever, a hemorrhagic fever caused by Lassa virus (LASV), is endemic in West Africa. It is difficult to distinguish febrile illnesses that are common in West Africa from Lassa fever based solely on a patient's clinical presentation. The field performance of recombinant antigen-based Lassa fever immunoassays was compared to that of quantitative polymerase chain assays (qPCRs) using samples from subjects meeting the case definition of Lassa fever presenting to Kenema Government Hospital in Sierra Leone. The recombinant Lassa virus (ReLASV) enzyme-linked immunosorbant assay (ELISA) for detection of viral antigen in blood performed with 95% sensitivity and 97% specificity using a diagnostic standard that combined results of the immunoassays and qPCR...
April 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29650451/hiv-incidence-in-western-kenya-during-scale-up-of-antiretroviral-therapy-and-voluntary-medical-male-circumcision-a-population-based-cohort-analysis
#15
Martien W Borgdorff, Daniel Kwaro, David Obor, George Otieno, Viviane Kamire, Frederick Odongo, Patrick Owuor, Jacques Muthusi, Lisa A Mills, Rachael Joseph, Mary E Schmitz, Peter W Young, Emily Zielinski-Gutierrez, Kevin M De Cock
BACKGROUND: In Kenya, coverage of antiretroviral therapy (ART) among people with HIV infection has increased from 7% in 2006, to 57% in 2016; and, in western Kenya, coverage of voluntary medical male circumcision (VMMC) increased from 45% in 2008, to 72% in 2014. We investigated trends in HIV prevalence and incidence in a high burden area in western Kenya in 2011-16. METHODS: In 2011, 2012, and 2016, population-based surveys were done via a health and demographic surveillance system and home-based counselling and testing in Gem, Siaya County, Kenya, including 28 688, 17 021, and 16 772 individuals aged 15-64 years...
April 9, 2018: Lancet HIV
https://www.readbyqxmd.com/read/29650293/quinone-skeleton-as-a-new-class-of-irreversible-inhibitors-against-staphylococcus-aureus-sortase-a
#16
Xiaochen Hou, Meining Wang, Yi Wen, Tengfeng Ni, Xiangna Guan, Lefu Lan, Naixia Zhang, Ao Zhang, Cai-Guang Yang
Sortase A (SrtA) anchors surface proteins to the cell wall and aids biofilm formation during infection, which functions as a key virulence factor of important Gram-positive pathogens, such as Staphylococcus aureus. At present researchers need a way in which to validate whether or not SrtA is a druggable target alternative to the conventional antibiotic targets in the mechanism. In this study, we performed a high-throughput screening and identified a new class of potential inhibitors of S. aureus SrtA, which are derived from natural products and contain the quinone skeleton...
April 4, 2018: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29649107/impaired-hematologic-status-in-relation-to-clinical-outcomes-among-hiv-infected-adults-from-uganda-a-prospective-cohort-study
#17
Amara E Ezeamama, David Guwatudde, Alla Sikorskii, Edmond K Kabagambe, Raybun Spelts, Grace Vahey, Jenifer I Fenton, Wafaie W Fawzi
Impaired hematologic status (IHS) was investigated as a determinant of immune function defined as cluster of differentiation 4 (CD4) T-helper cell count, quality of life (QOL) weight and hospitalization/mortality over 18-months among 398 adult persons living with HIV/AIDS (PLWHA) on anti-retroviral therapy. IHS was defined as having anemia at baseline (Hemoglobin: <12 g/dL for women and <13 g/dL for men), time-updated anemia or having low (<30 μg/L) or high (>200 μg/L for men and >150 μg/L for women) ferritin levels at baseline...
April 12, 2018: Nutrients
https://www.readbyqxmd.com/read/29649079/in-search-of-mobile-applications-for-urogynecology-providers
#18
Shannon L Wallace, Shailja Mehta, Sara Farag, Robert S Kelley, Katherine T Chen
INTRODUCTION: Thousands of medical applications (apps) are available for mobile devices. Finding accurate, health care provider-centered apps may be time consuming and frustrating for urogynecologists. The objective of this study was to identify and evaluate urogynecology (urogyn) apps using a modified APPLICATIONS scoring system. MATERIALS AND METHODS: Urogyn apps were identified from the Apple iTunes and Google Play Stores using the following 10 MeSH terms: urogynecology, incontinence, prolapse, urinary tract infection, pelvic surgery, fecal incontinence, defecation disorder, voiding disorder, urethral diverticulum, and fistula...
April 11, 2018: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/29648611/fine-mapping-the-interaction-between-dc-sign-and-the-cytomegalovirus-envelope-glycoprotein-b
#19
Coraline Chéneau, Flora Coulon, Vanessa Porkolab, Franck Fieschi, Stéphanie Laurant, Diane Razanajaona-Doll, Jean-Jacques Pin, Eva Maria Borst, Martin Messerle, Céline Bressollette-Bodin, Franck Halary
Human cytomegalovirus (HCMV) is a leading cause of virally-induced congenital disorders and morbidities in immunocompromised individuals, i.e. transplant, cancer or AIDS patients. HCMV infects virtually all cell types through the envelope glycoprotein complex gH/gL/gO with our without a contribution of the pentameric gH/gL/pUL128L. Together with gH/gL, the HCMV envelope glycoprotein B (gB) contributes to the viral fusion machinery. We previously showed that gB is a ligand for the C-type lectin Dendritic Cell-Specific ICAM-3 Grabbing Nonintegrin (DC-SIGN) contributing to HCMV attachment to and infection of DC-SIGN expressing cells...
April 10, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29645080/risk-of-oral-tongue-cancer-among-immunocompromised-transplant-recipients-and-human-immunodeficiency-virus-infected-individuals-in-the-united-states
#20
Joseph E Tota, Eric A Engels, Margaret M Madeleine, Christina A Clarke, Charles F Lynch, Ana P Ortiz, Brenda Y Hernandez, Anil K Chaturvedi
BACKGROUND: Oral tongue cancer incidence has increased among whites in the United States; however, the cause remains unknown. If an infectious agent is implicated, then elevated risk would be expected among immunosuppressed individuals. METHODS: By using population-based registry linkage information from the US Transplant Cancer Match and human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) Cancer Match studies, the authors examined the risk of oral tongue squamous cell carcinoma (SCC) among immunocompromised transplantation recipients and HIV-infected individuals...
April 12, 2018: Cancer
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