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https://www.readbyqxmd.com/read/28727946/confounding-by-single-nucleotide-polymorphism-rs117648444-p70s-affects-the-association-of-interferon-lambda-locus-variants-with-response-to-interferon-%C3%AE-ribavirin-therapy-in-patients-with-chronic-genotype-3-hepatitis-c-virus-infection
#1
Anand Bhushan, Sumona Ghosh, Samsiddhi Bhattacharjee, Sreedhar Chinnaswamy
Genome-wide association studies discovered interferon lambda (IFNL or IFN-λ) locus on chromosome 19 to be involved in clearance of chronic hepatitis C virus (HCV) infection in patients following interferon-α-ribavirin (IFN-RBV) therapy. Subsequent studies established a dinucleotide polymorphism rs368234815, as the prime causal variant behind this association. The ΔG allele of this variant gives rise to a new IFNL gene, IFNL4, coding for IFN-λ4 whose activity paradoxically associates with lesser viral clearance rates...
July 20, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28727820/active-hexose-correlated-compound-enhances-extrinsic-pathway-mediated-apoptosis-of-acute-myeloid-leukemic-cells
#2
Kavin Fatehchand, Ramasamy Santhanam, Brenda Shen, Ericka L Erickson, Shalini Gautam, Saranya Elavazhagan, Xiaokui Mo, Tesfaye Belay, Susheela Tridandapani, Jonathan P Butchar
Active Hexose Correlated Compound (AHCC) has been shown to have many immunostimulatory and anti-cancer activities in mice and in humans. As a natural product, AHCC has potential to create safer adjuvant therapies in cancer patients. Acute Myeloid Leukemia (AML) is the least curable and second-most common leukemia in adults. AML is especially terminal to those over 60 years old, where median survival is only 5 to 10 months, due to inability to receive intensive chemotherapy. Hence, the purpose of this study was to investigate the effects of AHCC on AML cells both in vitro and in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28727797/prophylactic-supplementation-of-resveratrol-is-more-effective-than-its-therapeutic-use-against-doxorubicin-induced-cardiotoxicity
#3
Heba Samy Shoukry, Hania Ibrahim Ammar, Laila Ahmed Rashed, Maha Balegh Zikri, Ashraf Ali Shamaa, Sahar Gamal Abou Elfadl, Ejlal Abu-Al Rub, Sekaran Saravanan, Sanjiv Dhingra
Resveratrol (RSV), a polyphenolic compound and naturally occurring phytoalexin, has been reported to exert cardio-protective effects in several animal studies. However, the outcome of initial clinical trials with RSV was less effective compared to pre-clinical studies. Therefore, RSV treatment protocols need to be optimized. In this study we evaluated prophylactic versus therapeutic effect of resveratrol (RSV) in mitigating doxorubicin (Dox)-induced cardiac toxicity in rats. To investigate prophylactic effects, RSV was supplemented for 2 weeks along with Dox administration...
2017: PloS One
https://www.readbyqxmd.com/read/28727711/high-body-mass-index-is-a-potential-risk-factor-for-persistent-postoperative-pain-after-breast-cancer-treatment
#4
Noud van Helmond, Hans Timmerman, Nick T van Dasselaar, Carmen C van de Pol, Soren S Olesen, Asbjorn M Drewes, Kris Vissers, Oliver H Wilder-Smith, Monique A Steegers
BACKGROUND: Risk factors associated with persistent pain after breast cancer treatment are needed to develop prevention and treatment strategies to improve the quality of life for patients with breast cancer. OBJECTIVES: To identify factors associated with persistent pain in women undergoing breast cancer treatments. STUDY DESIGN: Retrospective study. SETTING: Regional hospital in the Netherlands. METHODS: The primary outcome was pain associated with surgery at more than 6 months postoperatively and patients were stratified based on the associated visual analog" scale score they reported: reporting no pain as "no pain," pain 1 - 29 mm as "mild pain," and pain 30 - 100 mm as "moderate/severe pain...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28727707/continuing-anti-thrombotic-medication-during-low-to-intermediate-risk-spinal-procedures-a-retrospective-evaluation
#5
Noud van Helmond, Wesley Day, Kenneth B Chapman
BACKGROUND: The current American Society of Regional Anesthesia (ASRA) guidelines recommend discontinuing anti-thrombotic therapy prior to any interventional spine procedures to decrease the incidence of bleeding complications. However, discontinuing anti-thrombotics may pose considerable danger in terms of cerebrovascular and cardiovascular events. Recent evidence suggests that some spinal interventions may still be performed safely with anti-thrombotics on board and some practitioners thus elect to continue certain anti-thrombotics for these procedures...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28727384/a-neural-network-based-algorithm-for-predicting-stone-free-status-after-eswl-therapy
#6
Ilker Seckiner, Serap Seckiner, Haluk Sen, Omer Bayrak, Kazim Dogan, Sakip Erturhan
OBJECTIVE: The prototype artificial neural network (ANN) model was developed using data from patients with renal stone, in order to predict stone-free status and to help in planning treatment with Extracorporeal Shock Wave Lithotripsy (ESWL) for kidney stones. MATERIALS AND METHODS: Data were collected from the 203 patients including gender, single or multiple nature of the stone, location of the stone, infundibulopelvic angle primary or secondary nature of the stone, status of hydronephrosis, stone size after ESWL, age, size, skin to stone distance, stone density and creatinine, for eleven variables...
July 20, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28727221/scar-formation-following-excisional-and-burn-injuries-in-a-red-duroc-pig-model
#7
Britani N Blackstone, Jayne Y Kim, Kevin L McFarland, Chandan K Sen, Dorothy M Supp, J Kevin Bailey, Heather M Powell
Scar research is challenging because rodents do not naturally form excessive scars, and burn depth, size, and location cannot be controlled in human longitudinal studies. The female, red Duroc pig model has been shown to form robust scars with biological and anatomical similarities to human hypertrophic scars. To more closely mimic the mode of injury, recreate the complex chemical milieu of the burn wound environment and enhance scar development, an animal model of excessive burn-induced scarring was developed and compared with the more commonly used model, which involves excisional wounds created via dermatome...
July 20, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28726530/incremental-net-monetary-benefit-of-ocrelizumab-relative-to-subcutaneous-interferon-%C3%AE-1a
#8
Melissa A Frasco, Tiffany Shih, Devin Incerti, Oliver Diaz Espinosa, Diana K Vania, Nina Thomas
AIM: Disease-modifying therapies (DMTs) impact the natural history of relapsing forms of multiple sclerosis (RRMS) by reducing annual relapse rates and slowing disability progression. The effect of DMTs on indirect costs has not been consistently explored in cost-effectiveness studies thus far. The value to patients of an emerging DMT, ocrelizumab, was quantified in comparison to subcutaneous interferon beta-1a (IFNβSC) for the prevalent RRMS population with mild to moderate disability in the United States based on two Phase 3 trials, OPERA I and OPERA II, of ocrelizumab versus IFNβSC in RRMS...
July 20, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28726212/melasma-an-up-to-date-comprehensive-review
#9
REVIEW
Oluwatobi A Ogbechie-Godec, Nada Elbuluk
Melasma is a common acquired condition of symmetric hyperpigmentation, typically occurring on the face, with higher prevalence in females and darker skin types. Multiple etiologies, including light exposure, hormonal influences, and family history, have been implicated in the pathogenesis of this disorder. Overall prevalence ranges widely at 1-50%, since values are typically calculated within a specific ethnic population within a geographic region. Histologically, melasma can display increased epidermal and/or dermal pigmentation, enlarged melanocytes, increased melanosomes, solar elastosis, dermal blood vessels, and, occasionally, perivascular lymphohistiocytic infiltrates...
July 19, 2017: Dermatology and Therapy
https://www.readbyqxmd.com/read/28725634/ip3-receptor-mediated-calcium-signaling-and-its-role-in-autophagy-in-cancer
#10
REVIEW
Elzbieta Kania, Gemma Roest, Tim Vervliet, Jan B Parys, Geert Bultynck
Calcium ions (Ca(2+)) play a complex role in orchestrating diverse cellular processes, including cell death and survival. To trigger signaling cascades, intracellular Ca(2+) is shuffled between the cytoplasm and the major Ca(2+) stores, the endoplasmic reticulum (ER), the mitochondria, and the lysosomes. A key role in the control of Ca(2+) signals is attributed to the inositol 1,4,5-trisphosphate (IP3) receptors (IP3Rs), the main Ca(2+)-release channels in the ER. IP3Rs can transfer Ca(2+) to the mitochondria, thereby not only stimulating core metabolic pathways but also increasing apoptosis sensitivity and inhibiting basal autophagy...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28725600/endogenous-and-exogenous-testosterone-and-prostate-cancer-decreased-increased-or-null-risk
#11
REVIEW
David S Lopez, Shailesh Advani, Konstantinos K Tsilidis, Run Wang, Steven Canfield
For more than 70 years, the contention that high levels of testosterone or that the use of testosterone therapy (TTh) increases the development and progression of prostate cancer (PCa) has been widely accepted and practiced. Yet, the increasing and emerging evidence on testosterone research seems to challenge that contention. To review literature on the associations of endogenous and exogenous testosterone with decreased-, increased-, or null-risk of PCa, and to further evaluate only those studies that reported magnitude of associations from multivariable modeling as it minimizes confounding effects...
June 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28725597/canine-prostate-models-in-preclinical-studies-of-minimally-invasive-interventions-part-i-canine-prostate-anatomy-and-prostate-cancer-models
#12
REVIEW
Fei Sun, Claudia Báez-Díaz, Francisco Miguel Sánchez-Margallo
The high prevalence of prostate cancer (PCa) in elderly men and technical advances in early detection of localized PCa have led to continued efforts to develop new therapeutic options of minimally invasive nature in current urologic oncology community. Increasing newly emerging therapies are undergoing preclinical tests on the technical feasibility, efficacy and safety in animal experiments. The dog is an ideal large animal because of its similar anatomy to human and the capability allowing the use of the same medical devices applied in future clinical trials...
June 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28725587/multi-parametric-mri-imaging-of-the-prostate-implications-for-focal-therapy
#13
REVIEW
James S Wysock, Herbert Lepor
The primary goal of a focal therapy treatment paradigm is to achieve cancer control through targeted tissue destruction while simultaneously limiting deleterious effects on peri-prostatic structures. Focal therapy approaches are employed in several oncologic treatment protocols, and have been shown to provide equivalent cancer control for malignancies such as breast cancer and renal cell carcinoma. Efforts to develop a focal therapy approach for prostate cancer have been challenged by several concepts including the multifocal nature of the disease and limited capability of prostate ultrasound and systematic biopsy to reliably localize the site(s) and aggressiveness of disease...
June 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28725225/antiviral-functions-of-human-immunodeficiency-virus-type-1-hiv-1-specific-igg-antibodies-effects-of-antiretroviral-therapy-and-implications-for-therapeutic-hiv-1-vaccine-design
#14
REVIEW
Martyn A French, M Christian Tjiam, Laila N Abudulai, Sonia Fernandez
Contemporary antiretroviral therapy (ART) is effective and tolerable for long periods of time but cannot eradicate human immunodeficiency virus type 1 (HIV-1) infection by either elimination of viral reservoirs or enhancement of HIV-1-specific immune responses. Boosting "protective" HIV-1-specific immune responses by active or passive immunization will therefore be necessary to control or eradicate HIV-1 infection and is currently the topic of intense investigation. Recently reported studies conducted in HIV patients and non-human primate (NHP) models of HIV-1 infection suggest that HIV-1-specific IgG antibody responses may contribute to the control of HIV-1 infection...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28725044/cord-blood-nk-cells-engineered-to-express-il-15-and-a-cd19-targeted-car-show-long-term-persistence-and-potent-anti-tumor-activity
#15
E Liu, Y Tong, G Dotti, H Shaim, B Savoldo, M Mukherjee, J Orange, X Wan, X Lu, A Reynolds, M Gagea, P Banerjee, R Cai, M H Bdaiwi, R Basar, M Muftuoglu, L Li, D Marin, W Wierda, M Keating, R Champlin, E Shpall, K Rezvani
Chimeric antigen receptors (CARs) have been used to redirect the specificity of autologous T-cells against leukemia and lymphoma with promising clinical results.(1-3) Extending this approach to allogeneic T-cells is problematic as they carry a significant risk of graft-versus-host disease (GVHD). Natural killer (NK) cells are highly cytotoxic effectors, killing their targets in a non-antigen specific manner without causing GVHD. Cord blood (CB) offers an attractive, allogeneic, off-the-self source of NK cells for immunotherapy...
July 20, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28725030/a-practical-model-evaluating-antiviral-cytokines-by-natural-killer-cells-in-treatment-na%C3%A3-ve-patients-with-chronic-hepatitis-b-virus-infection
#16
Xiaoyan Li, Yurong Gu, Xiaobo Guo, Lin Gu, Liang Zhou, Xiaojuan Wu, Xueqin Wang, Zania Stamataki, Yuehua Huang
Natural killer (NK) cells play a major role in anti-viral immunity as first line defense during hepatitis B infection, particularly in untreated patients whose T cells functions are profoundly impaired. Cytokine interferon (IFN)-γ and tumor necrosis factor (TNF)-α produced by NK cells are important anti-viral factors. However, there is lack of a quantifiable model to evaluate cytokine responses by NK cells. In this study, almost half of the patients (47.9%) beyond treatment criteria had high cytokine activity, although it was lower than those recommended for antiviral therapy (78...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724955/mushroom-lectin-overcomes-hepatitis-b-virus-tolerance-via-tlr6-signaling
#17
Meina He, Dan Su, Qinghong Liu, Wenjuan Gao, Youmin Kang
Currently, chronic hepatitis B virus (HBV) infection remains a serious public health problem in the world. Recombinant HBV vaccine, as a preventive strategy against HBV infection, generates high antibody level, but it is not effective to activate innate and cellular immunity for chronic HBV infection therapy. Lectins from mushroom are natural and active proteins which have been shown important biological functions. However, little is known about the immunological mechanism engaged by mushroom lectins. Here we report that, lectin from Pleurotus ostreatus (POL) stimulated innate response by activating Toll-like receptor 6 signal pathway of dendritic cells...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724801/tcr-ligand-dissociation-rate-is-a-robust-and-stable-biomarker-of-cd8-t-cell-potency
#18
Mathilde Allard, Barbara Couturaud, Laura Carretero-Iglesia, Minh Ngoc Duong, Julien Schmidt, Gwennaëlle C Monnot, Pedro Romero, Daniel E Speiser, Michael Hebeisen, Nathalie Rufer
Despite influencing many aspects of T cell biology, the kinetics of T cell receptor (TCR) binding to peptide-major histocompatibility molecules (pMHC) remain infrequently determined in patient monitoring or for adoptive T cell therapy. Using specifically designed reversible fluorescent pMHC multimeric complexes, we performed a comprehensive study of TCR-pMHC off-rates combined with various functional assays on large libraries of self/tumor- and virus-specific CD8+ T cell clones from melanoma patients and healthy donors...
July 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28724773/nkp46-recognizes-the-sigma1-protein-of-reovirus-implications-for-reovirus-based-cancer-therapy
#19
Yotam Bar-On, Yoav Charpak-Amikam, Ariella Glasner, Batya Isaacson, Alexandra Duev-Cohen, Pinchas Tsukerman, Alexander Varvak, Michal Mandelboim, Ofer Mandelboim
The recent approval of onclolytic virus for therapy of melanoma patients has increased the need for precise evaluation of the mechanisms by which oncolytic viruses affect tumor growth. Here we show that the human NK activating receptor, NKp46, and its mouse orthologous protein, NCR1, recognize the reovirus sigma1 protein in a sialic-acid-dependent manner. We identify NKp46/NCR1 binding sites to sigma1 and show that sigma1 binding by NKp46/NCR1 leads to NK cell activation in vitro Finally, we demonstrate that NCR1 activation is essential for reovirus-based therapy in vivo Collectively, we identified sigma1 as a novel ligand for NKp46/NCR1 and demonstrated that NKp46/NCR1 is needed for both clearance of reovirus infections and reovirus-based tumor therapy...
July 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28724693/new-peptide-inhibitor-of-dipeptidyl-peptidase-iv-emdb-1-extends-the-half-life-of-glp-2-and-attenuates-colitis-in-mice-after-topical-administration
#20
Maciej Salaga, Anna Mokrowiecka, Marta Zielinska, Ewa Malecka-Panas, Radzislaw Kordek, Elzbieta Kamysz, Jakub Fichna
Protease inhibition has become a new possible approach in the inflammatory bowel disease (IBD) therapy. A serine exopeptidase, dipeptidyl peptidase IV (DPP IV) is responsible for inactivation of incretine hormone, glucagon-like peptide 2 (GLP-2), a potent stimulator of intestinal epithelium regeneration and growth. Recently we showed that the novel peptide analog of endomorphin-2, EMDB-1 is a potent blocker of DPP IV and has an inhibitory effect on gastrointestinal (GI) smooth muscle contractility. The aim of this study was to characterize the anti-inflammatory effect and mechanism of action of EMDB-1 in the mouse GI tract...
July 19, 2017: Journal of Pharmacology and Experimental Therapeutics
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