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https://www.readbyqxmd.com/read/28087948/regulation-of-immunity-to-tuberculosis
#1
Susanna Brighenti, Diane J Ordway
Immunity against Mycobacterium tuberculosis requires a balance between adaptive immune responses to constrain bacterial replication and the prevention of potentially damaging immune activation. Regulatory T (Treg) cells express the transcription factor Foxp3+ and constitute an essential counterbalance of inflammatory Th1 responses and are required to maintain immune homeostasis. The first reports describing the presence of Foxp3-expressing CD4+ Treg cells in tuberculosis (TB) emerged in 2006. Different Treg cell subsets, most likely specialized for different tissues and microenvironments, have been shown to expand in both human TB and animal models of TB...
December 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28087939/dendritic-cells-in-the-immune-system-history-lineages-tissues-tolerance-and-immunity
#2
Jonathan M Austyn
The aim of this review is to provide a coherent framework for understanding dendritic cells (DCs). It has seven sections. The introduction provides an overview of the immune system and essential concepts, particularly for the nonspecialist reader. Next, the "History" section outlines the early evolution of ideas about DCs and highlights some sources of confusion that still exist today. The "Lineages" section then focuses on five different populations of DCs: two subsets of "classical" DCs, plasmacytoid DCs, monocyte-derived DCs, and Langerhans cells...
December 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28087917/-reasearch-progress-on-the-role-of-neutrophils-in-asthma
#3
Tingting Li, Yuehai Ke, Hongqiang Cheng
Asthma is a phenotypically heterogeneous chronic disease of the airways. Studies have found that neutrophils are crucial to airway inflammation in acute asthma, persistent asthma, particularly in asthma of poor response to glucocorticoid treatment. The role of neutrophils in development of bronchial asthma is complex, as they can release a potent source of cytokines and inflammatory mediators participating in asthma. Differing from eosinophilic inflammatory asthma, neutrophilic inflammatory asthma is not depend on helper T (Th)2 cells, but may be related to Th1 and Th17 cells...
May 25, 2016: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28087487/bioprinting-for-vascular-and-vascularized-tissue-biofabrication
#4
REVIEW
Pallab Datta, Bugra Ayan, Ibrahim T Ozbolat
: Bioprinting is a promising technology to fabricate design-specific tissue constructs due to its ability to create complex, heterocellular structures with anatomical precision. Bioprinting enables the deposition of various biologics including growth factors, cells, genes, neo-tissues and extra-cellular matrix-like hydrogels. Benefits of bioprinting have started to make a mark in the fields of tissue engineering, regenerative medicine and pharmaceutics. Specifically, in the field of tissue engineering, the creation of vascularized tissue constructs has remained a principal challenge till date...
January 10, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28087410/repair-of-8-oxog-a-mismatches-by-the-mutyh-glycosylase-mechanism-metals-medicine
#5
REVIEW
Douglas M Banda, Nicole N Nuñez, Michael A Burnside, Katie M Bradshaw, Sheila S David
Reactive oxygen and nitrogen species (RONS) may infringe on the passing of pristine genetic information by inducing DNA inter- and intra-strand crosslinks, protein-DNA crosslinks, and chemical alterations to the sugar or base moieties of DNA. 8-Oxo-7,8-dihydroguanine (8-oxoG) is one of the most prevalent DNA lesions formed by RONS and is repaired through the base excision repair (BER) pathway involving the DNA repair glycosylases OGG1 and MUTYH in eukaryotes. MUTYH removes adenine (A) from 8-oxoG:A mispairs, thus mitigating the potential of G:C to T:A transversion mutations from occurring in the genome...
January 10, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28087335/the-lower-alkyl-methacrylates-genotoxic-profile-of-non-carcinogenic-compounds
#6
Richard J Albertini
All of the lower alkyl methacrylates are high production chemicals with potential for human exposure. The genotoxicity of seven mono-functional alkyl esters of methacrylic acid, i.e. methyl methacrylate, ethyl methacrylate, hydroxyethyl methacrylate, n-, i- and t-butyl methacrylate and 2 ethyl hexyl methacrylate, as well as methacrylic acid itself, the acyl component common to all, is reviewed and compared with the lack of carcinogenicity of methyl methacrylate, the representative member of the series so evaluated...
January 10, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28081485/the-elucidation-of-non-classical-mhc-class-ii-antigen-processing-through-the-study-of-viral-antigens
#7
REVIEW
Asha Purnima Veerappan Ganesan, Laurence C Eisenlohr
By convention, CD4(+) T cells are activated predominantly by Major Histocompatibility Complex class II-bound peptides derived from extracellular (exogenous) antigens. It has been known for decades that alternative sources of antigen, particularly those synthesized within the antigen-presenting cell, can also supply peptides but the impact on TCD4+ responses, sometimes considerable, has only recently become appreciated. This review focuses on the contributions that studies of viral antigen have made to this shift in perspective, concluding with discussions of relevance to rational vaccine design, autoimmunity and cancer immunotherapy...
January 9, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28079758/concussion-in-ice-hockey-current-gaps-and-future-directions-in-an-objective-diagnosis
#8
Aynsley M Smith, Michael J Stuart, William O Roberts, David W Dodick, Jonathan T Finnoff, Janelle K Jorgensen, David A Krause
OBJECTIVE: This review provides an update on sport-related concussion (SRC) in ice hockey and makes a case for changes in clinical concussion evaluation. Standard practice should require that concussions be objectively diagnosed and provide quantitative measures of the concussion injury that will serve as a platform for future evidence-based treatment. METHODS: The literature was surveyed to address several concussion-related topics: research in ice hockey-related head trauma, current subjective diagnosis, promising components of an objective diagnosis, and current and potential treatments...
January 10, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28079614/the-role-of-gene-environment-interplay-in-occupational-and-environmental-diseases-current-concepts-and-knowledge-gaps
#9
Elizabeth Kwo, David Christiani
PURPOSE OF REVIEW: The interplay between genetic susceptibilities and environmental exposures in the pathogenesis of a variety of diseases is an area of increased scientific, epidemiologic, and social interest. Given the variation in methodologies used in the field, this review aims to create a framework to help understand occupational exposures as they currently exist and provide a foundation for future inquiries into the biological mechanisms of the gene-environment interactions. Understanding of this complex interplay will be important in the context of occupational health, given the public health concerns surrounding a variety of occupational exposures...
January 11, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28079265/chimeric-antigen-receptor-t-cells-in-hematologic-malignancies
#10
Brandon R Shank, Bryan Do, Adrienne Sevin, Sheree E Chen, Sattva S Neelapu, Sandra B Horowitz
Patients with B cell hematologic malignancies who progress through first or second line chemotherapy have a poor prognosis. Early clinical trials with autologous anti-CD19 chimeric antigen receptor (CAR) T cells have demonstrated promising results for patients who have relapsed or refractory disease. Lymphodepleting conditioning regimens including cyclophosphamide, fludarabine, pentostatin, bendamustine, interleukin-2, and total body irradiation are often administered prior to infusion of CAR T cells, allowing for greater T cell expansion...
January 12, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28078439/liquid-based-versus-conventional-cytology-of-oral-brush-biopsies-a-split-sample-pilot-study
#11
T W Remmerbach, N Pomjanski, U Bauer, H Neumann
OBJECTIVE: The aim of this prospective split sample study was to evaluate the applicability of liquid-based cytology (LBC) of oral brush biopsies for detection of oral cancer. METHODS: Two different preparation techniques were investigated: the conventional transfer procedure to glass slides and the LBC preparation method. The obtainments of epithelial cells were performed five times with a nylon brush and transferred onto five glass slides. Additionally, the brushes, which were normally discarded, were stored in a fixative solution...
January 11, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28078381/celiac-disease-a-clinical-review
#12
Badr Al-Bawardy, D Chamil Codipilly, Alberto Rubio-Tapia, David H Bruining, Stephanie L Hansel, Joseph A Murray
Celiac disease (CD) is an immune-mediated inflammatory enteropathy triggered by gluten exposure in genetically susceptible individuals. It has a high prevalence approaching 1% of the US population. A high index of suspicion is warranted to diagnose CD as frequently patients present with extraintestinal or atypical manifestations. CD is diagnosed by a combination of serum serologies and duodenal biopsies. The majority of patients will respond to a lifelong gluten-free diet which is the cornerstone of therapy...
January 12, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28077318/alcohol-microbiome-life-style-influence-alcohol-and-non-alcoholic-organ-damage
#13
REVIEW
Manuela G Neuman, Samuel W French, Samir Zakhari, Stefen Malnick, Helmut K Seitz, Lawrence B Cohen, Mikko Salaspuro, Andreea Voinea Griffin, Andrei Barasch, Irina A Kirpich, Paul G Thomes, Laura W Schrum, Terrence M Donohue, Kusum Kharbanda, Marcus Cruz, Mihai Opris
This paper is based upon the "8th Charles Lieber's Satellite Symposium" organized by Manuela G. Neuman at the Research Society on Alcoholism Annual Meeting, onJune 25, 2016 at New Orleans, Louisiana, USA. The integrative symposium investigated different aspects of alcohol-induced liver disease (ALD) as well as non-alcohol-induced liver disease (NAFLD) and possible repair. We revealedthe basic aspects of alcohol metabolism that may be responsible for the development of liver diseaseas well as the factors that determine the amount, frequency and which type of alcohol misuse leads to liver and gastrointestinal diseases...
January 7, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28077159/concurrent-chemoradiotherapy-combined-with-enteral-nutrition-support-a-radical-treatment-strategy-for-esophageal-squamous-cell-carcinoma-patients-with-malignant-fistulae
#14
Li Ma, Guang-Yu Luo, Yu-Feng Ren, Bo Qiu, Hong Yang, Chun-Xia Xie, Song-Ran Liu, Shi-Liang Liu, Zhao-Lin Chen, Qun Li, Jian-Hua Fu, Meng-Zhong Liu, Yong-Hong Hu, Wen-Feng Ye, Hui Liu
BACKGROUND: Concurrent chemoradiotherapy (CCRT) significantly increases the survival rate of esophageal squamous cell carcinoma (ESCC) patients with malignant fistulae. Recent clinical evidence has shown the benefits of enteral nutrition for malnourished cancer patients. In this study, we aimed to validate that, with the support of enteral nutrition, ESCC patients who develop malignant fistulae might be able to complete CCRT and achieve long-term survival. METHODS: We reviewed the medical records of 652 patients with ESCC who received definitive CCRT at Sun Yat-sen University Cancer Center between January 2010 and December 2012...
January 11, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/28076721/effect-of-tumor-complexity-and-technique-on-efficacy-and-complications-after-percutaneous-microwave-ablation-of-stage-t1a-renal-cell-carcinoma-a-single-center-retrospective-study
#15
Marki E Klapperich, E Jason Abel, Timothy J Ziemlewicz, Sara Best, Meghan G Lubner, Stephen Y Nakada, J Louis Hinshaw, Christopher L Brace, Fred T Lee, Shane A Wells
Purpose To evaluate the effects of tumor complexity and technique on early and midterm oncologic efficacy and rate of complications for 100 consecutive biopsy-proved stage T1a renal cell carcinomas (RCCs) treated with percutaneous microwave ablation. Materials and Methods This HIPAA-compliant, single-center retrospective study was approved by the institutional review board. The requirement to obtain informed consent was waived. Ninety-six consecutive patients (68 men, 28 women; mean age, 66 years ± 9.4) with 100 stage T1a N0M0 biopsy-proved RCCs (median diameter, 2...
January 11, 2017: Radiology
https://www.readbyqxmd.com/read/28076686/small-molecule-hiv-1-entry-inhibitors-targeting-gp120-and-gp41-a-patent-review-2010-2015
#16
Wen Li, Lu Lu, Weihua Li, Shibo Jiang
It is essential to discover and develop small-molecule HIV-1 entry inhibitors with suitable pharmaceutical properties. Areas covered: We review the development of small-molecule HIV-1 entry inhibitors as evidenced in patents, patent applications, and related research articles published between 2010 and 2015. Expert opinion: HIV-1 Env gp120 and gp41 are important targets for development of HIV-1 entry inhibitors. The Phe43 pocket in gp120 and the highly conserved hydrophobic pocket on gp41 NHR-trimer are important targets for identification of HIV-1 attachment and fusion inhibitors, respectively...
January 11, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/28076637/a-five-year-review-of-vertical-hiv-transmission-in-a-specialized-service-cross-sectional-study
#17
Izabel Cristina Hoffmann, Wendel Mombaque Dos Santos, Stela Maris de Mello Padoin, Sonia Maria Oliveira de Barros
CONTEXT AND OBJECTIVE: Healthcare professionals need to instill the process of prevention, control and treatment of people infected with HIV into care practice. Through maintaining preventive treatment among HIV-infected pregnant women, it has been demonstrated that prophylactic antiretroviral therapy, scheduled cesarean section and the prohibition of breastfeeding significantly reduce vertical HIV transmission. This study aimed to assess the rates of vertical HIV transmission in a specialized service and identify the factors associated with it...
November 2016: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28075410/is-toxoplasma-gondii-a-trigger-of-bipolar-disorder
#18
REVIEW
Claudia Del Grande, Luca Galli, Elisa Schiavi, Liliana Dell'Osso, Fabrizio Bruschi
Toxoplasma gondii, a ubiquitous intracellular parasite, has a strong tropism for the brain tissue, where it forms intracellular cysts within the neurons and glial cells, establishing a chronic infection. Although latent toxoplasmosis is generally assumed to be asymptomatic in immunocompetent individuals, it is now clear that it can induce behavioral manipulations in mice and infected humans. Moreover, a strong relation has emerged in recent years between toxoplasmosis and psychiatric disorders. The link between T...
January 10, 2017: Pathogens
https://www.readbyqxmd.com/read/28075050/formyl-peptide-receptors-in-cellular-differentiation-and-inflammatory-diseases
#19
Ha Young Lee, Mingyu Lee, Yoe-Sik Bae
Formyl peptide receptors (FPRs) are a family of classical chemoattractant receptors. Although FPRs are mainly expressed in phagocytic innate immune cells including monocytes/macrophages and neutrophils, recent reports demonstrated that additional different cell types such as T-lymphocytes and several non-immune cells also express functional FPRs. FPRs were first reported as a specific receptor to detect bacteria-derived N-formyl peptides. However, accumulating evidence has shown that FPRs can recognize various ligands derived from pathogens, mitochondria, and host...
January 11, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28074676/potential-route-of-th17-treg-cell-dynamics-in-targeting-type-1-diabetes-and-rheumatoid-arthritis-an-autoimmune-disorder-perspective
#20
Suresh Kumar Karri, A Sheela
Cytokines, small secreted proteins, have a specific effect on the interactions and communications between cells. They play a pivotal role in the pathogenesis of autoimmune diseases. Factors in the breakdown of self-tolerance and the subsequent events leading to the induction of pathogenic responses remain unclear for most of the autoimmune diseases. Large numbers of studies have revealed a general scheme in which pro-inflammatory cytokines contribute to the initiation and propagation of autoimmune inflammation, whereas anti-inflammatory cytokines facilitate the regression of inflammation and thereby recovery from the disease...
January 11, 2017: British Journal of Biomedical Science
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