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https://www.readbyqxmd.com/read/28337129/novel-neuromodulation-techniques-to-assess-interhemispheric-communication-in-neural-injury-and-neurodegenerative-diseases
#1
REVIEW
Samuel S Shin, Galit Pelled
Interhemispheric interaction has a major role in various neurobehavioral functions. Its disruption is a major contributor to the pathological changes in the setting of brain injury such as traumatic brain injury, peripheral nerve injury, and stroke, as well as neurodegenerative diseases. Because interhemispheric interaction has a crucial role in functional consequence in these neuropathological states, a review of noninvasive and state-of-the-art molecular based neuromodulation methods that focus on or have the potential to elucidate interhemispheric interaction have been performed...
2017: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/28333033/freeze-all-cycle-in-reproductive-medicine-current-perspectives
#2
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/28332160/robust-motion-tracking-in-liver-from-2d-ultrasound-images-using-supporters
#3
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/28323756/tdf-associated-renal-tubular-dysfunction-non-invasive-assessment-of-mitochondrial-injury
#4
Ryan Samuels, Carla Roca Bayerri, John A Sayer, D Ashley Price, Brendan Ai Payne
OBJECTIVE: To determine whether TDF-associated renal tubular dysfunction is associated with evidence of mitochondrial injury in urine. DESIGN: Single centre cross-sectional observational study of HIV positive outpatients. METHODS: Biochemistry was performed on paired serum and urine samples. Mitochondrial DNA (mtDNA) was studied by real-time PCR and long-range PCR on cellular fractions of urine. RESULTS: 48 subjects were enrolled of whom half were TDF-treated...
March 18, 2017: AIDS
https://www.readbyqxmd.com/read/28317122/an-anthropomorphic-abdominal-phantom-for-deformable-image-registration-accuracy-validation-in-adaptive-radiation-therapy
#5
Yuliang Liao, Linjing Wang, Xiangdong Xu, Haibin Chen, Jiawei Chen, Guoqian Zhang, Huaiyu Lei, Ruihao Wang, Shuxu Zhang, Xuejun Gu, Xin Zhen, Linghong Zhou
PURPOSE: To design and construct a three-dimensional (3D) anthropomorphic abdominal phantom for geometric accuracy and dose summation accuracy evaluations of deformable image registration (DIR) algorithms for adaptive radiation therapy (ART). METHOD: Organ molds, including liver, kidney, spleen, stomach, vertebra and two metastasis tumors, were 3D printed using contours from an ovarian cancer patient. The organ molds were molded with deformable gels made of different mixtures of polyvinyl chloride (PVC) and the softener dioctyl terephthalate...
March 20, 2017: Medical Physics
https://www.readbyqxmd.com/read/28314381/dysregulation-of-alveolar-macrophage-ppar%C3%AE-nadph-oxidases-and-tgf%C3%AE-sub-1-sub-in-otherwise-healthy-hiv-infected-individuals
#6
Samantha M Yeligar, Janine M Ward, Frank L Harris, Lou Ann Brown, David Guidot, Sushma K Cribbs
<u>Rationale:</u> Despite antiretroviral therapy (ART), respiratory infections increase mortality in individuals living with chronic human immunodeficiency virus (HIV) infection. In experimental and clinical studies of chronic HIV infection, alveolar macrophages (AMs) exhibit impaired phagocytosis and bacterial clearance. Peroxisome proliferator-activated receptor (PPAR)γ, NADPH oxidase (Nox) isoforms Nox1, Nox2, Nox4, and transforming growth factor-beta 1 (TGFβ<sub>1</sub>) are critical mediators of AM oxidative stress and phagocytic dysfunction...
March 17, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28301421/persistence-of-hiv-drug-resistance-among-south-african-children-given-nevirapine-to-prevent-mother-to-child-transmission
#7
Ruth Kanthula, Theresa Rossouw, Ute D Feucht, Gisela Van Dyk, Ingrid A Beck, Rachel Silverman, Scott Olson, Christen Salyer, Sharon Cassol, Lisa M Frenkel
OBJECTIVES: We set out to examine the prevalence and persistence of mutations conferring high-level nonnucleoside-reverse-transcriptase (NNRTI)-resistance in a cohort of HIV-infected children who had failed prophylaxis to prevent mother-to-child-transmission (PMTCT). DESIGN: A prospective observational cohort study at the Pediatric HIV Clinic at Kalafong Provincial Tertiary Hospital in Pretoria, South Africa. METHODS: Children referred for initiation of ART were enrolled from July 2010 through February 2013...
March 15, 2017: AIDS
https://www.readbyqxmd.com/read/28290773/the-hiv-care-cascade-and-sub-analysis-of-those-linked-to-but-not-retained-in-care-the-experience-from-a-tertiary-hiv-referral-service-in-dublin-ireland
#8
P McGettrick, B Ghavami-Kia, W Tinago, A Macken, J O'Halloran, J S Lambert, G Sheehan, P W G Mallon
BACKGROUND: The HIV Care Cascade model can be used to measure how clinical services align with United Nations' (UN) HIV treatment targets. Previous models have highlighted sequential losses at each step of the Cascade with a significant proportion being not retained in care (NRIC). OBJECTIVE: We aimed to assess the feasibility of meeting the UN targets and assess factors associated with, and calculate the true proportion of those, NRIC. METHODS: All people living with HIV who were linked to our service, one of three specialist HIV care providers in Dublin Ireland, from its establishment in 1993 to 1 December 2014, were included in the cohort and were categorized as linked to care, retained in care (RIC), on antiretroviral therapy (on ART), virally suppressed (HIV RNA <40copies/ml), and NRIC...
March 14, 2017: HIV Clinical Trials
https://www.readbyqxmd.com/read/28288436/cell-therapy-of-critical-limb-ischemia-in-diabetic-patients-state-of-art
#9
REVIEW
Michal Dubský, Alexandra Jirkovská, Robert Bem, Andrea Nemcová, Vladimira Fejfarová, Edward B Jude
In this review we report on the state of cell therapy of critical limb ischemia (CLI) with respect to differences between diabetic and non-diabetic patients mainly from the clinical point of view. CLI is the most severe form of peripheral arterial disease and its diagnosis and treatment in diabetic patients is very difficult. The therapeutic effect of standard methods of CLI treatment is only partial - more than one third of diabetic patients are not eligible for standard revascularization; therefore, new therapeutic techniques such as cell therapy have been studied in clinical trials...
February 27, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28284779/heart-transplantation-for-chagas-cardiomyopathy
#10
Rodolfo D Benatti, Guilherme H Oliveira, Fernando Bacal
Chagas cardiomyopathy (CC) is one of the chronic manifestations of Trypanosoma cruzi (T. cruzi) infection and is a major public health disease in Latin America. Since it is a chronic systemic infection, Chagas disease was long considered a potential contraindication for transplantation because of the risk of recurrence with immunosuppression. However, early South American experience in the 1980's established the feasibility of heart transplantation (HT) in patients with Chagas disease. Indeed, the first cardiac transplant for a recipient with CC was performed in 1985 in Brazil...
February 3, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28282390/incidence-and-predictors-of-tuberculosis-among-hiv-infected-adults-after-initiation-of-antiretroviral-therapy-in-nigeria-2004-2012
#11
Ishani Pathmanathan, E Kainne Dokubo, Ray W Shiraishi, Simon G Agolory, Andrew F Auld, Dennis Onotu, Solomon Odafe, Ibrahim Dalhatu, Oseni Abiri, Henry C Debem, Adebobola Bashorun, Tedd Ellerbrock
BACKGROUND: Nigeria had the most AIDS-related deaths worldwide in 2014 (170,000), and 46% were associated with tuberculosis (TB). Although treatment of people living with HIV (PLHIV) with antiretroviral therapy (ART) reduces TB-associated morbidity and mortality, incident TB can occur while on ART. We estimated incidence and characterized factors associated with TB after ART initiation in Nigeria. METHODS: We analyzed retrospective cohort data from a nationally representative sample of adult patients on ART...
2017: PloS One
https://www.readbyqxmd.com/read/28281434/the-prevalence-of-hiv-seropositivity-and-associated-cytopenias-in-full-blood-counts-processed-at-an-academic-laboratory-in-soweto-south-africa
#12
J L Vaughan, T M Wiggill, N Alli, K Hodkinson
BACKGROUND: The HIV epidemic in South Africa (SA) has had a substantial impact on laboratory services, at least partially owing to the well-described propensity to cytopenias in HIV-positive patients. OBJECTIVES: (i) To formally gauge the impact of HIV infection on the state sector haematology services in SA by determining the HIV seropositivity rate among full blood counts (FBCs) performed at a large academic state sector laboratory; and (ii) to document the prevalence of cytopenias among HIV-positive patients in this setting...
February 27, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/28274403/long-term-results-of-adjuvant-versus-early-salvage-postprostatectomy-radiation-a-large-single-institutional-experience
#13
Daniela L Buscariollo, Michael Drumm, Andrzej Niemierko, Rebecca H Clayman, Sigolene Galland-Girodet, Danielle Rodin, Adam S Feldman, Douglas M Dahl, Francis J McGovern, Aria F Olumi, Alec Eidelman, William U Shipley, Anthony L Zietman, Jason A Efstathiou
PURPOSE: The purpose of this study was to evaluate freedom from biochemical failure (FFBF), freedom from androgen deprivation therapy (FFADT), freedom from distant metastases (FFDM), and overall survival (OS) after adjuvant radiation therapy (ART) versus early salvage radiation therapy (ESRT) in men with prostate cancer and adverse pathologic features (pT3 and/or positive surgical margins). METHODS AND MATERIALS: Of 718 patients consecutively treated with postoperative radiation therapy (RT) for prostate cancer between 1992 and 2013, we retrospectively identified 171 men receiving ART and 230 receiving ESRT (RT delivered at a prostate-specific antigen level ≤0...
March 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28273373/acute-care-management-of-the-hiv-infected-patient-a-report-from-the-hiv-practice-and-research-network-of-the-american-college-of-clinical-pharmacy
#14
Spencer H Durham, Melissa E Badowski, Michelle D Liedtke, R Chris Rathbun, Patricia Pecora Fulco
OBJECTIVE: HIV-infected patients admitted to the hospital have complex antiretroviral therapy (ART) regimens with an increased medication error rate upon admission. This report is intended to provide a resource for clinicians managing HIV-infected patients and ART in the inpatient setting. METHODS: A survey of the authors was conducted to evaluate common issues that arise during an acute hospitalization for HIV-infected patients. After a group consensus, a review of the medical literature was performed to determine the supporting evidence for the following HIV associated hospital queries: admission/discharge orders, antiretroviral hospital formularies, laboratory monitoring, altered hepatic/renal function, drug-drug interactions (DDIs), enteral administration, and therapeutic drug monitoring...
March 8, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28270119/option-b-for-prevention-of-vertical-hiv-transmission-has-no-influence-on-adverse-birth-outcomes-in-a-cross-sectional-cohort-in-western-uganda
#15
Eva M Rempis, Alexandra Schnack, Sarah Decker, Vera Braun, John Rubaihayo, Nazarius Mbona Tumwesigye, Priscilla Busingye, Gundel Harms, Stefanie Theuring
BACKGROUND: While most Sub-Saharan African countries are now implementing the WHO-recommended Option B+ protocol for prevention of vertical HIV transmission, there is a lack of knowledge regarding the influence of Option B+ exposure on adverse birth outcomes (ABOs). Against this background, we assessed ABOs among delivering women in Western Uganda. METHODS: A cross-sectional, observational study was performed within a cohort of 412 mother-newborn-pairs in Virika Hospital, Fort Portal in 2013...
March 7, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28269150/parallel-generation-of-digitally-reconstructed-radiographs-on-heterogeneous-multi-gpu-workstations
#16
Marwan Abdellah, Asem Abdelaziz, E M B S Eslam Ali, Sherief Abdelaziz, Abdelrahman Sayed, Mohamed I Owis, Ayman Eldeib
The growing importance of three-dimensional radiotherapy treatment has been associated with the active presence of advanced computational workflows that can simulate conventional x-ray films from computed tomography (CT) volumetric data to create digitally reconstructed radiographs (DRR). These simulated x-ray images are used to continuously verify the patient alignment in image-guided therapies with 2D-3D image registration. The present DRR rendering pipelines are quite limited to handle huge imaging stacks generated by recent state-of-the-art CT imaging modalities...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28259835/scaffolds-for-3d-in-vitro-culture-of-neural-lineage-cells
#17
REVIEW
Ashley R Murphy, Andrew Laslett, Carmel M O'Brien, Neil R Cameron
Understanding how neurodegenerative disorders develop is not only a key challenge for researchers but also for the wider society, given the rapidly aging populations in developed countries. Advances in this field require new tools with which to recreate neural tissue in vitro and produce realistic disease models. This in turn requires robust and reliable systems for performing 3D in vitro culture of neural lineage cells. This review provides a state of the art update on three-dimensional culture systems for in vitro development of neural tissue, employing a wide range of scaffold types including hydrogels, solid porous polymers, fibrous materials and decellularised tissues as well as microfluidic devices and lab-on-a-chip systems...
March 1, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28246135/cohort-profile-improving-treatment-of-hiv-infected-ethiopian-children-through-better-detection-of-treatment-failure-in-southern-ethiopia
#18
Birkneh Tilahun Tadesse, Byron Alexander Foster, Degu Jerene, Andrea Ruff
PURPOSE: The Ethiopian Paediatric HIV Cohort (EPHIC) was established to identify clinical and laboratory predictors of virological treatment failure to ultimately develop a clinical-immunological prediction rule with area under the curve of >0.80 for detecting first-line antiretroviral therapy failure (ARTF). It will also assess the performance of the current WHO guidelines for detection of first-line ARTF in children. PARTICIPANTS: Using a prospective cohort design, HIV-infected children and adolescents below the age of 18 years are followed every 6 months with a set of clinical and laboratory parameters at 6 hospitals in southern Ethiopia...
February 28, 2017: BMJ Open
https://www.readbyqxmd.com/read/28235324/you-can-treat-my-hiv-but-can-you-treat-my-blood-pressure-availability-of-integrated-hiv-and-non-communicable-disease-care-in-northern-malawi
#19
MULTICENTER STUDY
Colin Pfaff, Vera Scott, Risa Hoffman, Beatrice Mwagomba
BACKGROUND: Many patients on antiretroviral therapy (ART) in Malawi have or will develop non-communicable diseases (NCDs). The current capacity of ART sites to provide care for NCDs is not known. AIM: This study aimed to assess the capacity of ART sites to provide care for hypertension and diabetes in rural Malawi. SETTING: Twenty-five health centres and five hospitals in two rural districts in northern Malawi. METHODS: A cross-sectional survey was performed between March and May 2014 at all facilities...
February 15, 2017: African Journal of Primary Health Care & Family Medicine
https://www.readbyqxmd.com/read/28227379/parallel-generation-of-digitally-reconstructed-radiographs-on-heterogeneous-multi-gpu-workstations
#20
Marwan Abdellah, Asem Abdelaziz, E M B S Eslam Ali, Sherief Abdelaziz, Abdelrahman Sayed, Mohamed I Owis, Ayman Eldeib, Marwan Abdellah, Asem Abdelaziz, E M B S Eslam Ali, Sherief Abdelaziz, Abdelrahman Sayed, Mohamed I Owis, Ayman Eldeib, Sherief Abdelaziz, Mohamed I Owis, Abdelrahman Sayed, Marwan Abdellah, Asem Abdelaziz, Eslam Ali, Ayman Eldeib
The growing importance of three-dimensional radiotherapy treatment has been associated with the active presence of advanced computational workflows that can simulate conventional x-ray films from computed tomography (CT) volumetric data to create digitally reconstructed radiographs (DRR). These simulated x-ray images are used to continuously verify the patient alignment in image-guided therapies with 2D-3D image registration. The present DRR rendering pipelines are quite limited to handle huge imaging stacks generated by recent state-of-the-art CT imaging modalities...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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