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https://www.readbyqxmd.com/read/27915307/diversity-and-antifungal-drug-susceptibility-of-cryptococcus-isolates-in-thailand
#1
Navaporn Worasilchai, Marut Tangwattanachuleeporn, Kornvalee Meesilpavikkai, Claudia Folba, Mourine Kangogo, Uwe Groß, Michael Weig, Oliver Bader, Ariya Chindamporn
Yeasts of the Cryptococcus species complex are the causative agent of cryptococcosis, especially in human immunodeficiency virus (HIV) positive individuals. Cerebral or disseminated cryptococcosis has a very high mortality rate worldwide, including in Thailand. Additionally, an increasing rate of antifungal drug resistant cryptococcal isolates has been reported in several neighboring countries, complicating therapeutic approaches. To understand the situation of this infection in Thailand, we retrospectively investigated the molecular epidemiology and antifungal drug resistance in a collection of 74 clinical, 52 environmental and two veterinary isolates using the URA5-RFLP for typing and the EUCAST guideline for susceptibility testing...
December 3, 2016: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/27914932/detection-of-human-immunodeficiency-virus-rnas-in-living-cells-using-spinach-rna-aptamers
#2
Brandon D Burch, Carolina Garrido, David M Margolis
Many techniques currently used to measure HIV RNA production in cells suffer from limitations that include high background signal or the potential to destroy cellular context. Fluorophore-binding RNA aptamers offer the potential for visualizing RNAs directly in living cells with minimal cellular perturbation. We inserted a sequence encoding a fluorophore-binding RNA aptamer, known as Spinach, into the HIV genome such that predicted RNA secondary structures in both Spinach and HIV were preserved. Chimeric HIV-Spinach RNAs were functionally validated in vitro by testing their ability to enhance the fluorescence of a conditional fluorophore (DFHBI), which specifically binds Spinach...
November 30, 2016: Virus Research
https://www.readbyqxmd.com/read/27914861/rapid-human-immunodeficiency-virus-testing-and-risk-prevention-in-residents-of-battered-women-s-shelters
#3
Dawn M Johnson, Nicole L Johnson, Curt G Beckwith, Patrick A Palmieri, Caron Zlotnick
BACKGROUND: Human immunodeficiency virus (HIV) infection and intimate partner violence (IPV) are interconnected public health problems. However, few HIV prevention interventions address the unique needs of IPV survivors in shelter and none of the Centers for Disease Control and Prevention's best-evidence risk reduction interventions adequately explore the complex relationship between IPV and HIV risk. Although battered women's shelters provide a safe and supportive environment for women in crisis, most do not offer HIV risk reduction services or sexual safety planning...
November 30, 2016: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
https://www.readbyqxmd.com/read/27914367/single-wall-carbon-nanotube-electrode-system-capable-of-quantitative-detection-of-cd4-t-cells
#4
Joonhyub Kim, Gayoung Park, Seoho Lee, Suk-Won Hwang, Namki Min, Kyung-Mi Lee
Development of CNT-based CD4(+) T cell imunosensors remains in its infancy due to the poor immobilization efficiency, lack of reproducibility, and difficulty in providing linear quantification. Here, we developed a fully-integrated single wall carbon nanotube (SWCNT)-based immunosensor capable of selective capture and linear quantification of CD4(+) T cells with greater dynamic range. By employing repeated two-step oxygen (O2) plasma treatment processes with 35 days of recovery periods, we achieved the enhanced functionalization of the CNT surface and the removal of the byproduct of spray-coated SWCNTs that hinders charge transfer and stable CD4(+) T cell sensing...
November 25, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27913960/neuroimaging-abnormalities-in-clade-c-hiv-are-independent-of-tat-genetic-diversity
#5
Robert H Paul, Sarah Phillips, Jacqueline Hoare, David H Laidlaw, Ryan Cabeen, Gayla R Olbricht, Yuqing Su, Dan J Stein, Susan Engelbrecht, Soraya Seedat, Lauren E Salminen, Laurie M Baker, Jodi Heaps, John Joska
Controversy remains regarding the neurotoxicity of clade C human immunodeficiency virus (HIV-C). When examined in preclinical studies, a cysteine to serine substitution in the C31 dicysteine motif of the HIV-C Tat protein (C31S) results in less severe brain injury compared to other viral clades. By contrast, patient cohort studies identify significant neuropsychological impairment among HIV-C individuals independent of Tat variability. The present study clarified this discrepancy by examining neuroimaging markers of brain integrity among HIV-C individuals with and without the Tat substitution...
December 2, 2016: Journal of Neurovirology
https://www.readbyqxmd.com/read/27913201/early-mortality-and-associated-factors-among-patients-with-stroke-admitted-to-a-large-teaching-hospital-in-tanzania
#6
Kigocha Okeng'o, Pilly Chillo, William K Gray, Richard W Walker, William Matuja
BACKGROUND: Stroke is a major cause of death worldwide and 85.5% of stroke deaths occur in low- and middle-income countries due to stroke. The aim of this study was to investigate correlates and predictors of 30-day mortality in stroke patients in urban Tanzania. METHODS: A prospective 30-day follow-up study was conducted at the Muhimbili National Hospital, Dar es Salaam, Tanzania. We recruited all patients with stroke seen at the Emergency Medicine Department and medical wards...
November 29, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27913087/a-case-of-multiple-empyema-caused-by-streptococcus-intermedius
#7
Akihito Kaga, Ryuzaburo Higo, Hiroshi Yoshikawa, Naoko Yokoi, Takuo Haruyama, Hiroaki Komatsu, Ayumi Yabe, Takeshi Kusunoki, Katsuhisa Ikeda
We report the case of a patient with multiple empyema present throughout his body, including chronic sinusitis and chronic suppurative otitis media, as well as subsequent epidural empyema, all caused by Streptococcus intermedius. A 38-year-old man presented with chief complaints of headache, left ear discharge, and nasal congestion. Imaging studies revealed pansinusitis, soft tissue signs in the mastoid cells, and otitis media. The patient was treated with meropenem hydrate, 6g/day. While clinical findings indicated improvement of the sinusitis, his headache did not improve...
November 29, 2016: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/27911725/the-multiple-roles-of-the-nucleocapsid-in-retroviral-rna-conversion-into-proviral-dna-by-reverse-transcriptase
#8
REVIEW
Jean-Luc Darlix, Hugues de Rocquigny, Yves Mély
Retroviruses are enveloped plus-strand RNA viruses that can cause cancer, immunodeficiency and neurological disorder in human and animals. Retroviruses have several unique properties, such as a genomic RNA in a dimeric form found in the virus, and a replication strategy called 'copy-and-paste' during which the plus-strand genomic RNA is converted into a double-stranded DNA, subsequently integrated into the cellular genome. Two essential viral enzymes, reverse transcriptase (RT) and integrase (IN), direct this 'copy-and-paste' replication...
October 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27911724/control-of-hiv-1-gene-expression-by-sr-proteins
#9
REVIEW
Charlotte Mahiet, Chad M Swanson
Cellular proteins are required for all steps of human immunodeficiency virus type 1 (HIV-1) gene expression including transcription, splicing, 3'-end formation/polyadenylation, nuclear export and translation. SR proteins are a family of cellular RNA-binding proteins that regulate and functionally integrate multiple steps of gene expression. Specific SR proteins are best characterised for regulating HIV-1 RNA splicing by binding specific locations in the viral RNA, though recently they have also been shown to control transcription, 3'-end formation, and translation...
October 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27911718/attacking-hiv-1-rna-versus-dna-by-sequence-specific-approaches-rnai-versus-crispr-cas
#10
REVIEW
Elena Herrera-Carrillo, Ben Berkhout
Human immunodeficiency virus type 1 (HIV-1) infection can be effectively controlled by potent antiviral drugs, but this never results in a cure. The patient should therefore take these drugs for the rest of his/her life, which can cause drug-resistance and adverse effects. Therefore, more durable therapeutic strategies should be considered, such as a stable gene therapy to protect the target T cells against HIV-1 infection. The development of potent therapeutic regimens based on the RNA interference (RNAi) and clustered regularly interspaced short palindromic repeats (CRISPR-Cas) mechanisms will be described, which can be delivered by lentiviral vectors...
October 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27911588/pulmonary-innate-immune-dysfunction-in-hiv
#11
Bashar S Staitieh, Eduardo E Egea, David M Guidot
The advent of anti-retroviral therapy (ART) has transformed infection by the type 1 human immunodeficiency virus (HIV) from a rapidly fatal disease to a chronic illness with excellent long-term survival rates. Although HIV primarily targets the adaptive arm of host immunity, it simultaneously impacts the innate immune system and has profound implications for lung health even when viral suppression is achieved with ART. The lung has evolved a unique array of innate immune defenses and the pathophysiological interactions between HIV and the pulmonary innate immune system deserve particular attention...
December 2, 2016: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/27911140/effect-of-secondary-preventive-therapy-on-recurrence-of-tuberculosis-in-hiv-infected-individuals-a-systematic-review
#12
Wassilis Sc Bruins, Frank van Leth
Human immunodeficiency virus (HIV)-infected individuals successfully treated for tuberculosis (TB) remain at risk of recurrence of the disease, especially in high TB incidence settings. We performed a systematic review, investigating whether secondary preventive therapy (sPT) with anti-TB drugs (preventive therapy in former TB patients with treatment success) is an effective strategy to prevent recurrence of TB in this patient group. We searched the databases PubMed, Cochrane Library, EMBASE, Web of Science and Google Scholar using the keywords HIV-infections, HIV, human immunodeficiency virus, AIDS, isoniazid, isoniazid preventive therapy (IPT), tuberculosis, TB, recurrence and recurrent disease, resulting in 253 potential publications...
December 2, 2016: Infectious Diseases
https://www.readbyqxmd.com/read/27910750/antiretroviral-agents-looking-for-the-best-possible-chemotherapeutic-options-to-conquer-hiv
#13
Tahir Farooq, Arruje Hameed, Kanwal Rehman, Muhammad Ibrahim, Muhammad Imran Qadir, Muhammad Sajid Hamid Akash
For the last thirty years, ongoing efforts have revolutionized the antiretroviral therapy, which changed human immunodeficiency virus (HIV) infections from terrifying lethal diseases to chronic conditions. However, many challenges, like emergence of drug resistance, limited the scope of activity of currently existing anti-HIV agents. Quite often severe side effects and lifelong dependency are the major concerns of present era. All these issues have compelled the scientists to reconsider and refine the current therapies and also contemplate the pivotal priorities for the developments of novel therapeutic paradigms...
2016: Critical Reviews in Eukaryotic Gene Expression
https://www.readbyqxmd.com/read/27910095/a-comparison-of-methods-for-estimating-the-incidence-of-human-immunodeficiency-virus-infection-in-repeat-blood-donors
#14
Donald J Brambilla, Michael P Busch, Roger Y Dodd, Simone A Glynn, Steven H Kleinman
BACKGROUND: The incidence of human immunodeficiency virus (HIV) in repeat blood donors has been estimated using seven methods. Although incidence is always calculated as cases per person-time, approaches to selecting cases and calculating person-time vary. Incidence estimates have not been compared among methods. STUDY DESIGN AND METHODS: The seven methods were compared in a simulation study. Because three methods used information from donations made before an estimation interval, 8 years of donation and infection history were simulated, and Years 7 and 8 were treated as the estimation interval for all methods...
December 1, 2016: Transfusion
https://www.readbyqxmd.com/read/27906910/progress-with-scale-up-of-hiv-viral-load-monitoring-seven-sub-saharan-african-countries-january-2015-june-2016
#15
Shirley Lecher, Jason Williams, Peter N Fonjungo, Andrea A Kim, Dennis Ellenberger, Guoqing Zhang, Christiane Adje Toure, Simon Agolory, Georgette Appiah-Pippim, Suzanne Beard, Marie Yolande Borget, Sergio Carmona, Geoffrey Chipungu, Karidia Diallo, Marie Downer, Dianna Edgil, Holly Haberman, Mackenzie Hurlston, Steven Jadzak, Charles Kiyaga, William MacLeod, Boniface Makumb, Hellen Muttai, Christina Mwangi, Jane W Mwangi, Michael Mwasekaga, Mary Naluguza, Lucy W Ng'Ang'A, Shon Nguyen, Souleymane Sawadogo, Katrina Sleeman, Wendy Stevens, Joel Kuritsky, Shannon Hader, John Nkengasong
The World Health Organization (WHO) recommends viral load testing as the preferred method for monitoring the clinical response of patients with human immunodeficiency virus (HIV) infection to antiretroviral therapy (ART) (1). Viral load monitoring of patients on ART helps ensure early diagnosis and confirmation of ART failure and enables clinicians to take an appropriate course of action for patient management. When viral suppression is achieved and maintained, HIV transmission is substantially decreased, as is HIV-associated morbidity and mortality (2)...
December 2, 2016: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/27906906/vital-signs-trends-in-hiv-diagnoses-risk-behaviors-and-prevention-among-persons-who-inject-drugs-united-states
#16
Cyprian Wejnert, Kristen L Hess, H Irene Hall, Michelle Van Handel, Demorah Hayes, Paul Fulton, Qian An, Linda J Koenig, Joseph Prejean, Linda A Valleroy
BACKGROUND: Persons who inject drugs (PWID) are at increased risk for poor health outcomes and bloodborne infections, including human immunodeficiency virus (HIV), hepatitis C virus and hepatitis B virus infections. Although substantial progress has been made in reducing HIV infections among PWID, recent changes in drug use could challenge this success. METHODS: CDC used National HIV Surveillance System data to analyze trends in HIV diagnoses. Further, National HIV Behavioral Surveillance interviews of PWID in 22 cities were analyzed to describe risk behaviors and use of prevention services among all PWID and among PWID who first injected drugs during the 5 years before their interview (new PWID)...
December 2, 2016: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/27906733/routine-inpatient-human-immunodeficiency-virus-screening-missed-prevention-opportunities
#17
Daniel C Baker
PURPOSE/OBJECTIVES: This article reviews the current guidelines for human immunodeficiency virus (HIV) screening among inpatients and explores adherence to the guidelines and barriers to their implementation. BACKGROUND: In 2006, the Centers for Disease Control and Prevention released updated recommendations suggesting HIV screening for all patients in all healthcare settings. DESCRIPTION: A nonsystematic review of current HIV screening guidelines, as well as research and nonresearch literature, addressing rates of inpatient screening was performed...
January 2017: Clinical Nurse Specialist CNS
https://www.readbyqxmd.com/read/27906726/ethical-considerations-in-caring-for-persons-living-with-human-immunodeficiency-virus
#18
Hannah J Jang, Michael Allerton, Elizabeth Ann Scruth
No abstract text is available yet for this article.
January 2017: Clinical Nurse Specialist CNS
https://www.readbyqxmd.com/read/27906032/infection-of-rhesus-macaques-with-a-pool-of-simian-immunodeficiency-virus-with-the-envelope-genes-from-acute-hiv-1-infections
#19
Kendall C Krebs, Meijuan Tian, Mohammed Asmal, Binhua Ling, Kenneth Nelson, Kenneth Henry, Richard Gibson, Yuejin Li, Weining Han, Robin J Shattock, Ronald S Veazey, Norman Letvin, Eric J Arts, Yong Gao
BACKGROUND: New simian-human immunodeficiency chimeric viruses with an HIV-1 env (SHIVenv) are critical for studies on HIV pathogenesis, vaccine development, and microbicide testing. Macaques are typically exposed to single CCR5-using SHIVenv which in most instances does not reflect the conditions during acute/early HIV infection (AHI) in humans. Instead of individual and serial testing new SHIV constructs, a pool of SHIVenv_B derived from 16 acute HIV-1 infections were constructed using a novel yeast-based SHIV cloning approach and then used to infect macaques...
November 25, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27906028/re-focusing-hiv-prevention-messages-a-qualitative-study-in-rural-uganda
#20
Sanyukta Mathur, Dina Romo, Mariko Rasmussen, Neema Nakyanjo, Fred Nalugoda, John S Santelli
BACKGROUND: After 30 years, the human immunodeficiency virus (HIV) remains an epidemic of global concern. To support the increasing emphasis on biomedical interventions for prevention requires a renewed and reframed focus on HIV prevention messages to motivate engagement in risk-reduction activities. This paper examines youth and adult perceptions of HIV prevention messages and HIV risk assessment in a generalized HIV epidemic context in Uganda. METHODS: We conducted 24 focus group discussions and 24 in-depth interviews with 15-45 year olds (n = 218) from three communities in the Rakai district of Uganda in 2012...
November 11, 2016: AIDS Research and Therapy
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