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https://www.readbyqxmd.com/read/29457784/hiv-latency-is-reversed-by-acss2-driven-histone-crotonylation
#1
Guochun Jiang, Don Nguyen, Nancie M Archin, Steven A Yukl, Gema Méndez-Lagares, Yuyang Tang, Maher M Elsheikh, George R Thompson, Dennis J Hartigan-O'Connor, David M Margolis, Joseph K Wong, Satya Dandekar
Eradication of HIV-1 (HIV) is hindered by stable viral reservoirs. Viral latency is epigenetically regulated. While the effects of histone acetylation and methylation at the HIV long-terminal repeat (LTR) have been described, our knowledge of the proviral epigenetic landscape is incomplete. We report that a previously unrecognized epigenetic modification of the HIV LTR, histone crotonylation, is a regulator of HIV latency. Reactivation of latent HIV was achieved following the induction of histone crotonylation through increased expression of the crotonyl-CoA-producing enzyme acyl-CoA synthetase short-chain family member 2 (ACSS2)...
February 19, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29457292/antibodies-against-h3-and-h4-histones-from-the-sera-of-hiv-infected-patients-catalyze-site-specific-degradation-of-these-histones
#2
Svetlana V Baranova, Pavel S Dmitrenok, Anastasiya D Zubkova, Nikita V Ivanisenko, Elena S Odintsova, Valentina N Buneva, Georgy A Nevinsky
Histones and their posttranslational modified forms play pivotal roles in chromatin functioning and gene transcription. Also, histones are harmful when they enter the intercellular space; their administration to animals results in systemic inflammatory and toxic responses. Autoantibodies having enzymatic activities (abzymes) are the specific feature of several autoimmune and viral diseases. Electrophoretically homogeneous IgGs containing no canonical proteases were purified from sera of HIV-infected patients by using several affinity chromatographies...
February 19, 2018: Journal of Molecular Recognition: JMR
https://www.readbyqxmd.com/read/29457142/cross-country-association-of-press-freedom-and-lgbt-freedom-with-prevalence-of-persons-living-with-hiv-implication-for-global-strategy-against-hiv-aids
#3
Xinguang Chen, Amy L Elliott, Shuang Wang
Background: Human behaviors are affected by attitudes and beliefs, which in turn are shaped by higher-level values to which we have ascribed. In this study, we explore the relationship between two higher-level values, press freedom and LGBT freedom, and HIV infection with national data at the population level. Methods: Data were the number of persons living with HIV (PLWH, n = 35,468,911) for 148 countries during 2011-15, press freedom index (PFI) determined by the Reporters Without Borders, and LGBT freedom index (LGBT-FI) based on laws regulating same-sex relationships and expression...
2018: Global Health Research and Policy
https://www.readbyqxmd.com/read/29456692/effects-of-th17-treg-cell-imbalance-on-hiv-replication-in-patients-with-aids-complicated-with-tuberculosis
#4
Yanshuang Li, Weijia Sun
The purpose of this study was to determine the effect of Th17/Treg cell imbalance on HIV replication in patients with AIDS complicated with tuberculosis (TB). We selected 32 patients with AIDS combined with TB infection in our hospital and 30 healthy individual as controls. The Th17/Treg ratio in peripheral blood lymphocytes was detected by flow cytometry. Compared with healthy subjects, Th17 cells first declined in HIV patients with TB, but gradually increased over the course of the disease. Treg showed an increasing trend in HIV patients with TB...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29455553/correlates-of-missed-clinic-visits-among-youth-living-with-hiv
#5
Nicholas Tarantino, Larry K Brown, Laura Whiteley, M Isabel Fernández, Sharon L Nichols, Gary Harper
Youth living with HIV (YLH) have significant problems with attending their medical appointments. Poor attendance, consequently, predicts viral non-suppression and other negative health outcomes. To identity targets of intervention, this cross-sectional study examined correlates of past-year missed clinic visits among YLH (N = 2125) attending HIV clinics in the United States and Puerto Rico. Thirty-six percent of YLH missed two or more visits in the past year. Several factors were associated with missed visits in our regression model...
February 17, 2018: AIDS Care
https://www.readbyqxmd.com/read/29454196/sexually-transmitted-infections-and-immune-activation-among-hiv-infected-but-virally-suppressed-youth-on-antiretroviral-therapy
#6
Tanya L Kowalczyk Mullins, Su X Li, James Bethel, Maureen M Goodenow, Stephanie Hudey, John W Sleasman
BACKGROUND: Human immunodeficiency virus (HIV) infection is associated with chronic immune activation, and concurrent sexually transmitted infections (STIs) may increase immune activation. OBJECTIVES: Because HIV-infected youth are at high risk of STIs and little is known about the impact of STIs on immune activation in HIV-infected youth, we conducted an exploratory study examining the association between STIs and systemic inflammation and immune activation among HIV-infected adolescents...
February 7, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29452950/dynamic-fungal-cell-wall-architecture-in-stress-adaptation-and-immune-evasion
#7
REVIEW
Alex Hopke, Alistair J P Brown, Rebecca A Hall, Robert T Wheeler
Deadly infections from opportunistic fungi have risen in frequency, largely because of the at-risk immunocompromised population created by advances in modern medicine and the HIV/AIDS pandemic. This review focuses on dynamics of the fungal polysaccharide cell wall, which plays an outsized role in fungal pathogenesis and therapy because it acts as both an environmental barrier and as the major interface with the host immune system. Human fungal pathogens use architectural strategies to mask epitopes from the host and prevent immune surveillance, and recent work elucidates how biotic and abiotic stresses present during infection can either block or enhance masking...
February 13, 2018: Trends in Microbiology
https://www.readbyqxmd.com/read/29452366/prevalence-and-incidence-of-anal-and-cervical-high-risk-human-papillomavirus-hpv-types-covered-by-current-hpv-vaccines-among-hiv-infected-women-in-the-study-to-understand-the-natural-history-of-hiv-aids-in-the-era-of-effective-therapy-the-sun-study
#8
Erna Milunka Kojic, Lois Conley, Tim Bush, Susan Cu-Uvin, Elizabeth R Unger, Keith Henry, John Hammer, Gerome Escota, Teresa M Darragh, Joel M Palefsky, John T Brooks, Pragna Patel
Background: Nonavalent (9v) human papilloma virus vaccine targets high-risk (HR)-HPV types 16, 18, 31, 33, 45, 52, 58, and low-risk 6, 11. We examined prevalence, incidence, and clearance of anal and cervical HR-HPV in HIV-infected women. Methods: From 2004-2006, the SUN Study enrolled 167 women from four US cities. Anal and cervical specimens were collected annually for cytology and identification of 37 HPV types; 14 HR include: 9v 16, 18, 31, 33, 45, 52, 58; non-9v 35, 39, 51, 56, 59, 66, 68...
February 14, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29451848/mr-imaging-of-atraumatic-muscle-disorders
#9
Edward Smitaman, Dyan V Flores, Catalina Mejía Gómez, Mini N Pathria
Atraumatic disorders of skeletal muscles include congenital variants; inherited myopathies; acquired inflammatory, infectious, or ischemic disorders; neoplastic diseases; and conditions leading to muscle atrophy. These have overlapping appearances at magnetic resonance (MR) imaging and are challenging for the radiologist to differentiate. The authors organize muscle disorders into four MR imaging patterns: (a) abnormal anatomy with normal signal intensity, (b) edema/inflammation, (c) mass, and (d) atrophy, highlighting each of their key clinical and imaging findings...
February 16, 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29451611/factors-associated-with-hiv-co-infection-in-cases-of-acquired-syphilis-reported-in-a-reference-center-for-sexually-transmitted-diseases-and-aids-in-the-municipality-of-s%C3%A3-o-paulo-brazil-2014
#10
Carla Gianna Luppi, Solange Eduardo Chabu Gomes, Roberto José Carvalho da Silva, Amanda Miyako Ueno, Anna Maria Kamimura Dos Santos, Ângela Tayra, Renata Ferreira Takahashi
OBJECTIVE: to describe sociodemographic and behavioral characteristics and to identify factors associated with human immunodeficiency virus (HIV) co-infection in cases of acquired syphilis reported in a Reference Center for Sexually Transmitted Diseases (STD) and AIDS. METHODS: cross-sectional study with secondary data from a Reference Center for STD and AIDS in the municipality of São Paulo, Brazil, in 2014; the Poisson regression was used to estimate prevalence ratios (PR) and 95% confidence intervals (95%CI)...
2018: Epidemiologia e Servicos de Saude: Revista do Sistema Unico de Saude do Brasil
https://www.readbyqxmd.com/read/29451598/performance-of-cryptococcal-antigen-lateral-flow-assay-in-serum-cerebrospinal-fluid-whole-blood-and-urine-in-hiv-infected-patients-with-culture-proven-cryptococcal-meningitis-admitted-at-a-brazilian-referral-center
#11
José E Vidal, Carolina Toniolo, Adriana Paulino, Arnaldo L Colombo, Marilena Dos Anjos Martins, Cristina da Silva Meira, Renata Guise Soares Azevedo, Vera Lucia Pereira-Chioccola, Hélio Rodrigues Gomes, Marcia Dos Santos Lazera, Augusto C Penalva de Oliveira, David R Boulware
Cryptococcal meningitis is the most common cause of opportunistic meningitis in HIV-infected patients in Brazil and causes unacceptable high mortality rates. In this study, HIV-infected patients with a first episode of culture-proven cryptococcal meningitis in cerebrospinal fluid (CSF) were prospectively included in order to evaluate sensitivity of cryptococcal antigen (CrAg) lateral flow assay (LFA) in serum, CSF, whole blood (fingerstick), and fresh urine. In addition, HIV-infected patients with other neurological confirmed diseases were included in order to evaluate the specificity of CrAg LFA in serum...
2018: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/29447229/hiv-epidemics-in-shenzhen-and-chongqing-china
#12
Shu Yang, Alice P Y Chiu, Qianying Lin, Ziqian Zeng, Yafei Li, Yao Zhang, Zhengrong Yang, Lin Yang, Daihai He
OBJECTIVE: Men who have sex with men (MSM) and heterosexuals are the populations with the fastest growing HIV infection rates in China. We characterize the epidemic growth and age patterns between these two routes from 2004 to 2015 in Chongqing and Shenzhen, China. DESIGN AND METHODS: Data were downloaded from the National HIV/ AIDS Comprehensive Response Information Management System. For the new HIV diagnoses of heterosexuals and MSM in both cities, we estimated the growth rates by fitting different sub-exponential models...
2018: PloS One
https://www.readbyqxmd.com/read/29444768/web-based-just-in-time-information-and-feedback-on-antibiotic-use-for-village-doctors-in-rural-anhui-china-randomized-controlled-trial
#13
XingRong Shen, Manman Lu, Rui Feng, Jing Cheng, Jing Chai, Maomao Xie, Xuemeng Dong, Tao Jiang, Debin Wang
BACKGROUND: Excessive use of antibiotics is very common worldwide, especially in rural China; various measures that have been used in curbing the problem have shown only marginal effects. OBJECTIVE: The objective of this study was to test an innovative intervention that provided just-in-time information and feedback (JITIF) to village doctors on care of common infectious diseases. METHODS: The information component of JITIF consisted of a set of theory or evidence-based ingredients, including operation guideline, public commitment, and takeaway information, whereas the feedback component tells each participating doctor about his or her performance scores and percentages of antibiotic prescriptions...
February 14, 2018: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/29444747/hiv-susceptibility-among-clients-of-female-sex-workers-in-indonesia-a-qualitative-inquiry
#14
Lillian Mwanri, Nelsensius Klau Fauk, Christina Yeni Kustanti, Atik Ambarwati, Maria Silvia Merry
Background: The spread of HIV infection among men in Indonesia continues to increase every year. Clients of female sex workers (FSWs) are a group at higher risk of acquiring HIV infection due to their frequent engagement in sexual acts with sex workers. This study aimed to identify factors of susceptibility to HIV infection among clients of FSWs. Methods: A qualitative inquiry using one-on-one in-depth interviews was conducted in the Belu and Malaka districts of Indonesia from January to April 2017. The study participants (n =42) were the clients of FSWs recruited using the snowball sampling technique...
February 15, 2018: Sexual Health
https://www.readbyqxmd.com/read/29439892/a-human-bite-on-the-scrotum-case-report-and-review-of-management-in-the-emergency-department
#15
Dorothy Ng, Thomas Chan, Sohil Pothiawala
BACKGROUND: Human bites involving the genitalia rarely present to the emergency department (ED). They have the potential to cause life-threatening secondary infections as well as serious physical and functional damage. CASE REPORT: We report a case of an adult male who sustained a human bite to the scrotum, resulting in a ragged laceration on the anterior scrotum, with a devascularized flap and necrotic edges overlying the wound. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Human bites to the scrotum are rare and, hence, the experience of emergency physicians treating patients presenting with these injuries may be minimal...
February 10, 2018: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29439782/using-multilevel-models-to-evaluate-the-influence-of-contextual-factors-on-hiv-aids-sexually-transmitted-infections-and-risky-sexual-behavior-in-sub-saharan-africa-a-systematic-review
#16
REVIEW
Melissa Ward-Peterson, Kristopher Fennie, Daniel Mauck, Maryam Shakir, Chelsea Cosner, Prasad Bhoite, Mary Jo Trepka, Purnima Madhivanan
PURPOSE: To describe the use of multilevel models (MLMs) in evaluating the influence of contextual factors on HIV/AIDS, sexually transmitted infections (STIs), and risky sexual behavior (RSB) in sub-Saharan Africa. METHODS: Ten databases were searched through May 29, 2016. Two reviewers completed screening and full-text review. Studies examining the influence of contextual factors on HIV/AIDS, STIs, and RSB and using MLMs for analysis were included. The Quality Assessment Tool for Quantitative Studies was used to evaluate study quality...
February 2018: Annals of Epidemiology
https://www.readbyqxmd.com/read/29439321/knowledge-attitude-and-practice-of-hiv-aids-among-workers-at-china-first-highway-engineering-company-at-bilibila-sokota-road-project-sokota-ethiopia
#17
Mebratu Tarekegne, Addis Adera, Kalab Haile, Derara Guyo
OBJECTIVE: The aim of this study was to assess Bilbila Sokota Road Project workers' knowledge, attitude and practice on HIV/AIDS in China first highway engineering Company. METHODS: A cross sectional Survey was conducted among workers in China first high way engineering Company at Bilbila Sokota road project, Sokota, Ethiopia. Fifty-five workers were taken from project site/company. Data was collected using a validated self-administrated standardized questionnaire on Knowledge, attitude and practice including behavioral change regarding HIV/AIDS...
February 5, 2018: Human Antibodies
https://www.readbyqxmd.com/read/29439188/incidence-and-risk-factors-for-relapses-in-hiv-associated-non-hodgkin-lymphoma-as-observed-in-the-german-hiv-related-lymphoma-cohort-study
#18
Philipp Schommers, Daniel Gillor, Marcus Hentrich, Christoph Wyen, Timo Wolf, Mark Oette, Alexander Zoufaly, Jan-Christian Wasmuth, Johannes R Bogner, Marcus Müller, Stefan Esser, Alisa Schleicher, Bjöern Jensen, Albrecht Stoehr, Georg Behrens, Alexander Schultze, Jan Siehl, Jan Thoden, Ninon Taylor, Christian Hoffmann
Outcome of HIV-infected patients with AIDS-related lymphomas has improved during recent years. However, data on incidence, risk factors, and outcome of relapses in AIDS-related lymphomas after achieving complete remission are still limited. This prospective observational multicenter study includes HIV-infected patients with biopsy- or cytology proven malignant lymphomas since 2005. Data on HIV infection and lymphoma characteristics, treatment and outcome were recorded. For this analysis, AIDS-related lymphomas patients in complete remission were analyzed in terms of their relapse-free survival and potential risk factors for relapses...
February 8, 2018: Haematologica
https://www.readbyqxmd.com/read/29438671/the-structure-of-the-biofilm-controlling-response-regulator-bfmr-from-acinetobacter-baumannii-reveals-details-of-its-dna-binding-mechanism
#19
G Logan Draughn, Morgan E Milton, Erik A Feldmann, Benjamin G Bobay, Braden M Roth, Andrew L Olson, Richele J Thompson, Luis A Actis, Christopher Davies, John Cavanagh
The rise of drug-resistant bacterial infections coupled with decreasing antibiotic efficacy poses a significant challenge to global healthcare. Acinetobacter baumannii is an insidious, emerging bacterial pathogen responsible for severe nosocomial infections aided by its ability to form biofilms. The response regulator BfmR, from the BfmR/S two-component system, is the master regulator of biofilm initiation in A. baumannii and is a tractable therapeutic target. Here we present the structure of A. baumannii BfmR using a hybrid approach combining X-ray crystallography, nuclear magnetic resonance spectroscopy, chemical crosslinking mass spectrometry, and molecular modeling...
February 10, 2018: Journal of Molecular Biology
https://www.readbyqxmd.com/read/29438439/mother-to-child-transmission-of-hiv-in-brazil-data-from-the-birth-in-brazil-study-a-national-hospital-based-study
#20
Rosa Maria Soares Madeira Domingues, Valeria Saraceni, Maria do Carmo Leal
AIMS: to estimate the mother to child transmission (MTCT) of HIV among infected pregnant women identified in the "Birth in Brazil" study and to evaluate care practices provided in order to identify missed opportunities at preventing the MTCT of HIV infection in the country. METHODS: Descriptive study using data obtained from the consultation of different databases: the "Birth in Brazil" study database and the Brazilian National Information Systems (NIS) databases...
2018: PloS One
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