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https://www.readbyqxmd.com/read/28334876/pdgfrb-gain-of-function-mutations-in-sporadic-infantile-myofibromatosis
#1
Florence A Arts, Raf Sciot, Bénédicte Brichard, Marleen Renard, Audrey de Rocca Serra, Guillaume Dachy, Laura A Noël, Amélie I Velghe, Christine Galant, Maria Debiec-Rychter, An Van Damme, Miikka Vikkula, Raphaël Helaers, Nisha Limaye, Hélène A Poirel, Jean-Baptiste Demoulin
Infantile myofibromatosis is one of the most prevalent soft tissue tumors of infancy and childhood. Multifocal nodules with visceral lesions are associated with a poor prognosis. A few familial cases have been linked to mutations in various genes including PDGFRB. In this study, we sequenced PDGFRB, which encodes a receptor tyrosine kinase, in 16 cases of myofibromatosis or solitary myofibroma. Mutations in the coding sequence of PDGFRB were identified in 6 out of 8 patients with the sporadic multicentric form of the disease and in 1 out of 8 patients with isolated myofibroma...
March 3, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28333353/evolution-of-blood-associated-hiv-1-dna-levels-after-48-weeks-of-switching-to-atazanavir-ritonavir-lamivudine-dual-therapy-versus-continuing-triple-therapy-in-the-randomized-atlas-m-trial
#2
Francesca Lombardi, Simone Belmonti, Eugenia Quiros-Roldan, Alessandra Latini, Antonella Castagna, Gabriella D'Ettorre, Roberta Gagliardini, Massimiliano Fabbiani, Roberto Cauda, Andrea De Luca, Simona Di Giambenedetto
Objectives: The AtLaS-M randomized trial showed that in patients with HIV-1 RNA <50 copies/mL on atazanavir/ritonavir + two NRTIs, switching to a dual therapy with atazanavir/ritonavir+lamivudine had superior efficacy as compared with continuing the previous triple therapy. This substudy was designed to evaluate at 48 weeks the impact of the dual therapy versus the three-drug atazanavir/ritonavir-based therapy on the HIV-1 cellular reservoir as reflected by the quantification of blood-associated HIV-1 DNA levels...
March 10, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28333033/freeze-all-cycle-in-reproductive-medicine-current-perspectives
#3
Matheus Roque, Marcello Valle, Alessandra Kostolias, Marcos Sampaio, Selmo Geber
The freeze-all strategy has emerged as an alternative to fresh embryo transfer (ET) during in vitro fertilization (IVF) cycles. Although fresh ET is the norm during assisted reproductive therapies (ART), there are many concerns about the possible adverse effects of controlled ovarian stimulation (COS) over the endometrium. The supra-physiologic hormonal levels that occur during a conventional COS are associated with modifications in the peri-implantation endometrium, which may be related to a decrease in pregnancy rates and poorer obstetric and perinatal outcomes when comparing fresh to frozen-thawed embryo transfers...
February 1, 2017: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28332270/changes-in-elevated-cholesterol-in-the-era-of-tenofovir-in-south-africa-risk-factors-clinical-management-and-outcomes
#4
L Jamieson, D Evans, A T Brennan, F Moyo, D Spencer, K Mahomed, M Maskew, L Long, S Rosen, M P Fox
OBJECTIVES: Antiretroviral therapy (ART) has been associated with unfavourable lipid profile changes and increased risk of cardiovascular disease (CVD). With a growing population on ART in South Africa, there has been concern about the increase in noncommunicable diseases such as CVD. We determined risk factors associated with increased total cholesterol (TC) in a large cohort on ART and describe the clinical management thereof. METHODS: We conducted an observational cohort study of ART-naïve adults initiating standard first-line ART in a large urban clinic in Johannesburg, South Africa...
March 23, 2017: HIV Medicine
https://www.readbyqxmd.com/read/28332160/robust-motion-tracking-in-liver-from-2d-ultrasound-images-using-supporters
#5
Ece Ozkan, Christine Tanner, Matej Kastelic, Oliver Mattausch, Maxim Makhinya, Orcun Goksel
PURPOSE: Effectiveness of image-guided radiation therapy with precise dose delivery depends highly on accurate target localization, which may involve motion during treatment due to, e.g., breathing and drift. Therefore, it is important to track the motion and adjust the radiation delivery accordingly. Tracking generally requires reliable target appearance and image features, whereas in ultrasound imaging acoustic shadowing and other artifacts may degrade the visibility of a target, leading to substantial tracking errors...
March 22, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28331527/determinants-to-antiretroviral-treatment-non-adherence-among-adult-hiv-aids-patients-in-northern-ethiopia
#6
Berhe Beyene Gebrezgabher, Yigzaw Kebede, Melaku Kindie, Desalegn Tetemke, Mebrahtu Abay, Yalemzewod Assefa Gelaw
BACKGROUND: Adhering 95% and above of antiretroviral therapy reduces the rate of disease progression and death among people's living human immunodeficiency virus. Though manifold factors have reported as determinant factors of antiretroviral therapy adherence status, perhaps determinants of non-adherence differ up on the activities of patients in the study setting. METHODS: An institution based unmatched case-control study was conducted in Aksum town. Individuals who had a 6-month follow-up with complete individual information were included in the study...
2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28329393/virological-outcomes-of-second-line-protease-inhibitor-based-treatment-for-human-immunodeficiency-virus-type-1-in-a-high-prevalence-rural-south-african-setting-a-competing-risks-prospective-cohort-analysis
#7
Dami Collier, Collins Iwuji, Anne Derache, Tulio de Oliveira, Nonhlanhla Okesola, Alexandra Calmy, Francois Dabis, Deenan Pillay, Ravindra K Gupta
Background.: Second-line antiretroviral therapy (ART) based on ritonavir-boosted protease inhibitors (bPIs) represents the only available option after first-line failure for the majority of individuals living with human immunodeficiency virus (HIV) worldwide. Maximizing their effectiveness is imperative. Methods.: This cohort study was nested within the French National Agency for AIDS and Viral Hepatitis Research (ANRS) 12249 Treatment as Prevention (TasP) cluster-randomized trial in rural KwaZulu-Natal, South Africa...
March 13, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28329372/practical-review-of-recognition-and-management-of-obesity-and-lipohypertrophy-in-hiv-infection
#8
Jordan E Lake, Takara Stanley, Caroline Apovian, Shalendar Bhasin, Todd T Brown, Jaqueline Capeau, Judith S Currier, Michael P Dube, Julian Falutz, Steven K Grinspoon, Giovanni Guaraldi, Esteban Martinez, Grace A McComsey, Fred R Sattler, Kristine M Erlandson
Background: Obesity and lipohypertrophy are common in treated HIV infection and contribute to morbidity and mortality among HIV-infected adults on antiretroviral therapy (ART). Methods: We present a consensus opinion on the diagnosis, clinical consequences and treatment of excess adiposity in adults with treated HIV infection. Results: Obesity and lipohypertrophy commonly occur among HIV-infected adults on ART, and may have overlapping pathophysiologies and/or synergistic metabolic consequences...
February 24, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28329334/turquoise-i-part-1b-ombitasvir-paritaprevir-ritonavir-and-dasabuvir-with-ribavirin-for-hepatitis-c-virus-infection-in-hiv-1-coinfected-patients-on-darunavir
#9
David Wyles, Michael Saag, Rolando M Viani, Jacob Lalezari, Oluwatoyin Adeyemi, Laveeza Bhatti, Amit Khatri, Jennifer R King, Yiran B Hu, Roger Trinh, Nancy S Shulman, Peter Ruane
Background.: Ombitasvir/paritaprevir/ritonavir with dasabuvir (OBV/PTV/r + DSV) ± ribavirin (RBV) is approved for hepatitis C virus (HCV) genotype 1 (GT1) treatment in HIV-1 coinfected patients. In healthy controls, coadministration of OBV/PTV/r + DSV + darunavir (DRV) lowered DRV trough concentration (Ctrough) levels. To assess the clinical significance of this change, TURQUOISE-I, Part 1b, evaluated the efficacy and safety of OBV/PTV/r + DSV + RBV in coinfected patients on stable, DRV-containing antiretroviral therapy (ART)...
March 14, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28329270/hsv-2-acquisition-among-hiv-1-infected-adults-treated-with-tenofovir-as-part-of-combination-antiretroviral-therapy-results-from-the-actg-a5175-pearls-study
#10
Connie Celum, Ting Hong, Anne Cent, Deborah Donnell, Rhoda Morrow, Jared M Baeten, Cynthia Firnhaber, Beatriz Grinsztejn, Mina C Hosseinipour, Umesh Lalloo, Mulinda Nyirenda, Cynthia Riviere, Jorge Sanchez, Breno Santos, Khuanchai Supparatpinyo, James Hakim, N Kumarasamy, Thomas B Campbell
Objective: Tenofovir has in vitro activity against HSV-2 and reduced HSV-2 acquisition as pre-exposure prophylaxis. Whether tenofovir-containing antiretroviral therapy (ART) reduces HSV-2 acquisition is unknown. Design: Secondary analysis of ACTG A5175, a randomized, open-label study of three ART regimens among 1,571 participants. Methods: HSV-2 serostatus was assessed at baseline, exit and prior to ART change. Results: Of 365 HSV-2 seronegative persons, 68 acquired HSV-2 with 24 on tenofovir-containing ART and 44 on ART without tenofovir (HSV-2 incidence 6...
January 30, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28329244/attrition-from-hiv-treatment-programs-in-africa-a-longitudinal-ecological-analysis-using-data-from-307-144-patients-initiating-antiretroviral-therapy-between-2005-and-2010
#11
Batya Elul, Suzue Saito, Hannah Chung, David Hoos, Wafaa El-Sadr
Background: As access to antiretroviral therapy (ART) in Africa has increased dramatically, concerns have been raised regarding patient attrition, an important measure of program quality. Methods: We examined aggregate data from 307,144 patients initiating ART in 5,638 successive cohorts at 638 facilities in nine African countries from 2005-2010, a period characterized by massive treatment expansion. Poisson regression assessed trends in six- and 12-month cohort attrition (i...
February 21, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28329236/impact-of-hiv-drug-resistance-on-hiv-aids-associated-mortality-new-infections-and-antiretroviral-therapy-program-costs-in-sub-saharan-africa
#12
Andrew N Phillips, John Stover, Valentina Cambiano, Fumiyo Nakagawa, Michael R Jordan, Deenan Pillay, Meg Doherty, Paul Revill, Silvia Bertagnolio
To inform the level of attention to be given by antiretroviral therapy (ART) programs to HIV drug resistance (HIVDR), we used an individual-level model to estimate its impact on future AIDS deaths, HIV-incidence and ART program costs in sub-Saharan Africa (SSA) for a range of program situations. We applied this to SSA through the Spectrum-Goals model. In a situation in which current levels of pre-treatment HIVDR are over 10% (mean 15%), 16% of AIDS deaths (890,000 deaths) , 9% of new infections (450,000) and 8% ($6...
February 17, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28329212/clinical-status-of-adolescents-with-perinatal-hiv-at-transfer-to-adult-care-in-the-uk-ireland
#13
Intira Jeannie Collins, Caroline Foster, Anna Tostevin, Pat Tookey, Andrew Riordan, David Dunn, D M Gibb, Ali Judd
Background.: Increasing numbers of children infected perinatally with human immunodeficiency virus (HIV) are surviving to adolescence and transitioning to adult care, yet there are scarce data on their clinical status at transfer. Methods.: We analyzed prospective cohort data from the UK/Ireland national Collaborative HIV Pediatric Study (CHIPS). Clinical status at last pediatric clinic visit prior to transfer was described. Factors associated with higher CD4 cell count and viral load (VL) suppression<400 c/mL among patients on antiretroviral therapy (ART) at transfer were assessed using linear and logistic regression, respectively...
March 9, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28329208/differentiated-hiv-rna-viral-load-monitoring-in-resource-limited-settings-an-economic-analysis
#14
Diana M Negoescu, Zhenhuan Zhang, Heiner C Bucher, Eran Bendavid
Background: Viral load (VL) monitoring for patients receiving antiretroviral therapy (ART) is recommended worldwide. However, the costs of frequent monitoring are a barrier to implementation in resource-limited settings. The extent to which personalized monitoring frequencies may be cost-effective is unknown. Methods: We created a simulation model parameterized using person-level longitudinal data to assess the benefits of flexible monitoring frequencies. Our data-driven model tracked HIV+ individuals for 10 years following ART initiation...
March 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28328934/proviruses-with-identical-sequences-comprise-a-large-fraction-of-the-replication-competent-hiv-reservoir
#15
John K Bui, Michele D Sobolewski, Brandon F Keele, Jonathan Spindler, Andrew Musick, Ann Wiegand, Brian T Luke, Wei Shao, Stephen H Hughes, John M Coffin, Mary F Kearney, John W Mellors
The major obstacle to curing HIV infection is the persistence of cells with intact proviruses that can produce replication-competent virus. This HIV reservoir is believed to exist primarily in CD4+ T-cells and is stable despite years of suppressive antiretroviral therapy. A potential mechanism for HIV persistence is clonal expansion of infected cells, but how often such clones carry replication-competent proviruses has been controversial. Here, we used single-genome sequencing to probe for identical HIV sequence matches among viruses recovered in different viral outgrowth cultures and between the sequences of outgrowth viruses and proviral or intracellular HIV RNA sequences in uncultured blood mononuclear cells from eight donors on suppressive ART with diverse proviral populations...
March 22, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28328546/temporal-patterns-and-drug-resistance-in-csf-viral-escape-among-art-experienced-hiv-1-infected-adults
#16
Shibani S Mukerji, Vikas Misra, David Lorenz, Anna M Cervantes-Arslanian, Jennifer Lyons, Spyridon Chalkias, Alysse Wurcel, Deirdre Burke, Nagagopal Venna, Susan Morgello, Igor J Koralnik, Dana Gabuzda
BACKGROUND: Cerebrospinal fluid (CSF) viral escape is an increasingly recognized clinical event among HIV-1-infected adults. We analyzed longitudinal data and drug-resistance mutations to characterize profiles of HIV-1-infected patients on antiretroviral therapy with discordant CSF and plasma HIV-1 RNA levels. METHODS: Forty-one cases of CSF escape defined as detectable CSF HIV-1 RNA when plasma levels were undetectable, or HIV-1 RNA >0.5-log higher in CSF than plasma, were identified from Boston Hospitals and National NeuroAIDS Tissue Consortium (NNTC) from 2005-2016...
March 21, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28326952/latin-american-guidelines-for-cancer-pain-management
#17
Argelia Lara-Solares, Marisol Ahumada Olea, Amparito de Los Ángeles Basantes Pinos, Sara Bistre Cohén, Patricia Bonilla Sierra, Eva Rossina Duarte Juárez, Omar A Símon Escudero, Juan Guillermo Santacruz Escudero, José Alberto Flores Cantisani
Cancer is a major public health issue. Poor pain management has devastating consequences that seriously affect quality of life, diminish functionality and place a huge emotional burden on patients and their relatives. A group of Latin American opinion leaders were invited to participate in a meeting to discuss areas associated with cancer pain. The expert panel reviewed the latest literature to draft region-specific guidelines for effective pain management. The guidelines make recommendations on tailoring treatment to the specific type of pain and provide local physicians with the state-of-the art findings in the field...
March 13, 2017: Pain Management
https://www.readbyqxmd.com/read/28326100/immunohistochemical-markers-as-predictors-of-histopathologic-response-and-prognosis-in-rectal-cancer-treated-with-preoperative-adjuvant-therapy-state-of-the-art
#18
REVIEW
Alessandro Del Gobbo, Stefano Ferrero
We explain the state of the art of the immunohistochemical markers of response in rectal cancers treated with neoadjuvant medical therapies and its implication with prognosis. Neoadjuvant chemoradiotherapy is widely used to improve the outcome of patients with locally advanced rectal cancer, and the evaluation of the effects of medical therapy is to date based on histomorphological examination by applying four grading systems of response to therapy (tumor regression grade (TRG)). The need to identify immunohistochemical markers that could ensure a better assessment of response and possibly provide additional prognostic information has emerged...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28326084/hiv-infection-and-compromised-mucosal-immunity-oral-manifestations-and-systemic-inflammation
#19
REVIEW
Samantha E Heron, Shokrollah Elahi
Mucosal surfaces account for the vast majority of HIV transmission. In adults, HIV transmission occurs mainly by vaginal and rectal routes but rarely via oral route. By contrast, pediatric HIV infections could be as the result of oral route by breastfeeding. As such mucosal surfaces play a crucial role in HIV acquisition, and spread of the virus depends on its ability to cross a mucosal barrier. HIV selectively infects, depletes, and/or dysregulates multiple arms of the human immune system particularly at the mucosal sites and causes substantial irreversible damage to the mucosal barriers...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28325077/effective-interventions-to-improve-young-adults-linkage-to-hiv-care-in-sub-saharan-africa-a-systematic-review
#20
Bertille Octavie Mavegam, Jennifer R Pharr, Patricia Cruz, Echezona E Ezeanolue
HIV/AIDS remains a major public health problem despite the efforts to prevent and decrease its spread. Sub-Saharan Africa (SSA) represents 70% of the global number of people living with HIV and 73% of all HIV/AIDS-related deaths. Young adults age 15-24 years are disproportionately impacted by HIV/AIDS in SSA with 34% of people living with HIV (PLWHIV) and 37% of newly diagnosed individuals being in this age group. It is important that PLWHIV be linked to care to facilitate antiretroviral therapy (ART) initiation and limit the spread of infection...
March 22, 2017: AIDS Care
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