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https://www.readbyqxmd.com/read/28432571/cell-therapy-for-type-1-diabetes-current-and-future-strategies
#1
REVIEW
Yasaman Aghazadeh, Maria Cristina Nostro
PURPOSE OF THE REVIEW: Type 1 diabetes (T1D) is defined by an autoimmune destruction of insulin producing β-cells located in the endocrine part of the pancreas, the islets of Langerhans. As exogenous insulin administration fails at preventing severe complications associated with this disease, cell replacement therapies are being considered as a means to treat T1D. The purpose of this manuscript is to review the challenges associated with current strategies and discuss the potential of stem cell therapy for the treatment of T1D...
June 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28432518/correlation-between-heavy-metal-exposure-and-gstm1-polymorphism-in-iranian-multiple-sclerosis-patients
#2
Mehdi Aliomrani, Mohammad A Sahraian, Hamid Shirkhanloo, Mohammad Sharifzadeh, Mohammad R Khoshayand, Mohammad H Ghahremani
Multiple sclerosis (MS) is an immune-mediated chronic inflammatory disease of the central nervous system. Various exposures to heavy metals can lead to toxicity and oxidative stress. While glutathione-S-transferases are known as oxidative stress-related genes and involved in metal biotransformation. The aim of the present study is to investigate the correlation of GSTM1 polymorphism in MS patients and the possible association with blood concentration of arsenic (As) and cadmium (Cd) as major heavy metal pollutants...
April 21, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28431764/seasonal-monitoring-of-blue-mussel-mytilus-spp-populations-in-a-harbor-area-a-focus-on-responses-to-environmental-factors-and-chronic-contamination
#3
C Lacroix, E Duvieilbourg, N Guillou, J Guyomarch, C Bassoulet, D Moraga, G Chapalain, M Auffret
Coastal waters corresponding to macrotidal systems are among the most variable marine biotopes. Sessile animals as bivalve mollusks may however be found forming intertidal beds at high densities, as allowed by full adaptation to local conditions. A better knowledge of adaptive responses to environmental factors is required to foresee possible adverse effects of global change. At the sub-cellular level, transcriptional responses are among the earliest signals of environmental disturbances and they can reveal subtle and meaningful changes in organism exposed to stress...
April 12, 2017: Marine Environmental Research
https://www.readbyqxmd.com/read/28431186/unfractionated-heparin-versus-low-molecular-weight-heparins-for-avoiding-heparin-induced-thrombocytopenia-in-postoperative-patients
#4
REVIEW
Daniela R Junqueira, Liliane M Zorzela, Edson Perini
BACKGROUND: Heparin-induced thrombocytopenia (HIT) is an adverse drug reaction presenting as a prothrombotic disorder related to antibody-mediated platelet activation. It is a paradoxical immune reaction resulting in thrombin generation in vivo, which leads to a hypercoagulable state and the potential to initiate venous or arterial thrombosis. A number of factors are thought to influence the incidence of HIT including the type and preparation of heparin (unfractionated heparin (UFH) or low molecular weight heparin (LMWH)) and the heparin-exposed patient population, with the postoperative patient population at higher risk...
April 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28430622/serious-adverse-events-of-cell-therapy-for-respiratory-diseases-a-systematic-review-and-meta-analysis
#5
REVIEW
Runzhen Zhao, Zhenlei Su, Jing Wu, Hong-Long Ji
BACKGROUND: Cell therapy holds the most promising for acute and chronic deleterious respiratory diseases. However, the safety and tolerance for lung disorders are controversy. METHODS: We undertook a systematic review and meta-analyses of all 23 clinical studies of cell therapy. The outcomes were odds ratio (OR), risk difference (RD), Peto OR, relative risk, and mean difference of serious adverse events. RESULTS: 342 systemic infusions and 57 bronchial instillations (204 recipients) of cells were analyzed for acute respiratory distress syndrome (ARDS), bronchopulmonary dysplasia, pulmonary arterial hypertension, silicosis, sarcoidosis, extensively drug-resistant tuberculosis, chronic obstructive pulmonary diseases (COPD), and idiopathic pulmonary fibrosis...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430123/functional-analysis-of-the-rs774872314-rs116171003-rs200231898-and-rs201107751-polymorphisms-in-the-human-ror%C3%AE-t-gene-promoter-region
#6
Marcin Ratajewski, Marcin Słomka, Kaja Karaś, Marta Sobalska-Kwapis, Małgorzata Korycka-Machała, Anna Sałkowska, Jarosław Dziadek, Dominik Strapagiel, Jarosław Dastych
RAR-related orphan receptor gamma RORγT, a tissue-specific isoform of the RORC gene, plays a critical role in the development of naive CD4+ cells into fully differentiated Th17 lymphocytes. Th17 lymphocytes are part of the host defense against numerous pathogens and are also involved in the pathogenesis of inflammatory diseases, including autoimmune disorders. In this study, we functionally examined four naturally occurring polymorphisms located within one of the previously identified GC-boxes in the promoter region of the gene...
April 21, 2017: Genes
https://www.readbyqxmd.com/read/28429331/the-correlation-of-cd19%C3%A2-%C3%A2-cd24%C3%A2-%C3%A2-cd38%C3%A2-%C3%A2-b-cells-and-other-clinicopathological-variables-with-the-proportion-of-circulating-tregs-in-breast-cancer-patients
#7
Mohammad Kazzem Gheybi, Shokrollah Farrokhi, Mohammad Reza Ravanbod, Afshin Ostovar, Valiollah Mehrzad, Pardis Nematollahi
BACKGROUND: T regulatory cells (Tregs) are known to negatively control immune response. The frequency of these cells was inversely correlated with clinical outcomes of breast cancer. CD19(+)CD24(hi)CD38(hi) cells also play a critical role in inflammation and autoimmune disease. However, their function in tumor immune response is less studied. In this study we aimed to determine the role of CD19(+)CD24(hi)CD38(hi) cells and some other clinicopathological variables in increasing the proportion of Tregs in breast cancer patients...
April 20, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28429196/expression-of-programmed-cell-death-protein-1-by-tumor-infiltrating-lymphocytes-and-tumor-cells-is-associated-with-advanced-tumor-stage-in-patients-with-esophageal-adenocarcinoma
#8
Dagmar Kollmann, Desislava Ignatova, Julia Jedamzik, Yun-Tsan Chang, Gerd Jomrich, Matthias Paireder, Ivan Kristo, Dmitry Kazakov, Michal Michal, Antonio Cozzio, Wolfram Hoetzenecker, Tobias Schatton, Reza Asari, Matthias Preusser, Emmanuella Guenova, Sebastian F Schoppmann
BACKGROUND: Despite recent advances in the therapy for adenocarcinoma of the esophagogastric junction (AEG), overall prognosis remains poor. Programmed cell death protein 1 (PD1) is a co-inhibitory receptor primarily expressed by T-cells. Tumor cells can escape anticancer immune responses by triggering the PD1 pathway. Moreover, PD1 receptor engagement on cancer cells may trigger tumor-intrinsic growth signals. This study aimed to evaluate the potential clinical relevance of PD1 expression by tumor-infiltrating lymphocytes (TILs) and cancer cells in the AEG...
April 20, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28428201/dihydrolipoamide-dehydrogenase-lpd-rv0462-specific-t-cell-recall-responses-are-higher-in-healthy-household-contacts-of-tb-a-novel-immunodominant-antigen-from-m-tuberculosis
#9
Santhi Devasundaram, Alamelu Raja
The partial effectiveness against pulmonary tuberculosis (PTB), displayed by the existing tuberculosis (TB) vaccine, bacillus Calmette-Guérin (BCG), highlights the need for novel vaccines to replace or improve BCG. In TB immunology, antigen-specific cellular immune response is frequently considered indispensable. Latency-associated antigens are intriguing as targets for TB vaccine development. The mycobacterial protein, dihydrolipoamide dehydrogenase (Lpd; Rv0462), the third enzyme of the pyruvate dehydrogenase (PDH) complex, facilitates Mycobacterium tuberculosis to resist host reactive nitrogen intermediates...
April 20, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28428191/the-role-of-minimal-residual-disease-testing-in-myeloma-treatment-selection-and-drug-development-current-value-and-future-applications
#10
Kenneth C Anderson, Daniel Auclair, Gary J Kelloff, Caroline C Sigman, Herve Avet-Loiseau, Ann T Farrell, Nicole J Gormley, Shaji K Kumar, Ola Landgren, Nikhil C Munshi, Michele Cavo, Faith E Davies, Alessandra Di Bacco, Jennifer S Dickey, Steven I Gutman, Howard R Higley, Mohamad A Hussein, J Milburn Jessup, Ilan R Kirsch, Richard F Little, Robert D Loberg, Jens G Lohr, Lata Mukundan, James L Omel, Trevor J Pugh, Gregory H Reaman, Michael D Robbins, A Kate Sasser, Nancy Valente, Elena Zamagni
Treatment of myeloma has benefited from the introduction of more effective and better tolerated agents, improvements in supportive care, better understanding of disease biology, revision of diagnostic criteria, and new sensitive and specific tools for disease prognostication and management. Assessment of minimal residual disease (MRD) in response to therapy is one of these tools, as longer progression-free survival (PFS) is seen consistently among patients who have achieved MRD negativity. Current therapies lead to unprecedented frequency and depth of response, and next generation flow and sequencing methods to measure MRD in bone marrow are in use and being developed with sensitivities in the range of 10(-5)‒10(-6) cells...
April 20, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28428066/effects-of-gold-nanoparticle-based-vaccine-size-on-lymph-node-delivery-and-cytotoxic-t-lymphocyte-responses
#11
Sukmo Kang, Sukyung Ahn, Jeewon Lee, Jinyong Kim, Minsuk Choi, Vipul Gujrati, Hyungjun Kim, Jinjoo Kim, Eui-Cheol Shin, Sangyong Jon
Although it has been shown that the size of nanoparticle-based vaccines is a key determining factor for the induction of immune responses, few studies have provided detailed analyses of thresholds or critical sizes of nanoparticle vaccines. Here we report effects of the size of gold nanoparticle (GNP)-based vaccines on their efficiency of delivery to lymph nodes (LNs) and induction of CD8(+) T-cell responses. We further propose a threshold size of GNPs for use as an effective vaccine. To examine the effects of GNP size, we synthesized GNPs with diameters of 7, 14 and 28nm, and then conjugated them with recombinant ovalbumin (OVA) as a model antigen...
April 17, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28424927/development-of-new-extra-glandular-manifestations-or-associated-auto-immune-diseases-after-establishing-the-diagnosis-of-primary-sj%C3%A3-gren-s-syndrome-a-long-term-study-of-the-antonius-nieuwegein-sj%C3%A3-gren-ans-cohort
#12
E J Ter Borg, J C Kelder
To investigate in a long-term study, the development of new extra-glandular manifestations (EGM) or associated auto-immune diseases (AID) from 1 year after establishing the diagnosis of primary Sjögren's syndrome (pSS). The primary goal was to examine the frequency and type of these manifestations and to find out which demographic, clinical and serological profile was most at risk. All outpatients diagnosed with primary Sjögren's syndrome were included in a retrospective study, with at least one check-up per year, from June 1991 until August 2015...
April 19, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28424765/community-health-volunteers-in-primary-healthcare-in-rural-uganda-factors-influencing-performance
#13
Yusufu Kuule, Andrew Eric Dobson, Desalegn Woldeyohannes, Maria Zolfo, Robinah Najjemba, Birungi Mutahunga R Edwin, Nahabwe Haven, Kristien Verdonck, Philip Owiti, Ewan Wilkinson
INTRODUCTION: Community health volunteers (CHVs) play an integral role in primary healthcare. Several countries rely on CHV programs as a major element in improving access to care and attaining universal health coverage. However, their performance has been heterogeneous and at times context-specific, and influenced by multiple factors. We describe the socio-demographic and workplace characteristics affecting CHVs' performance in a public health program in rural western Uganda. METHODS: This was a cross-sectional study based on routine program data of CHVs serving the catchment of Bwindi Community Hospital, Kanungu District, South Western Uganda, in 2014 and 2015...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28423487/ipilimumab-treatment-decreases-monocytic-mdscs-and-increases-cd8-effector-memory-t-cells-in-long-term-survivors-with-advanced-melanoma
#14
Yago Pico de Coaña, Maria Wolodarski, Isabel Poschke, Yuya Yoshimoto, Yuan Yang, Maria Nyström, Ulrika Edbäck, Suzanne Eghyazi Brage, Andreas Lundqvist, Giuseppe V Masucci, Johan Hansson, Rolf Kiessling
Ipilimumab has revolutionized malignant melanoma therapy, but a better understanding of the mechanisms behind treatment response and adverse effects is needed. In this work, the immune system of ipilimumab treated patients was monitored to investigate potential mechanisms of action that may correlate with treatment outcome. Blood samples from 43 advanced melanoma patients were taken before, during and at the end of treatment. Hematological parameters were measured and flow cytometry analysis was performed in fresh samples within two hours of sample collection...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423296/eltrombopag-added-to-standard-immunosuppression-for-aplastic-anemia
#15
Danielle M Townsley, Phillip Scheinberg, Thomas Winkler, Ronan Desmond, Bogdan Dumitriu, Olga Rios, Barbara Weinstein, Janet Valdez, Jennifer Lotter, Xingmin Feng, Marie Desierto, Harshraj Leuva, Margaret Bevans, Colin Wu, Andre Larochelle, Katherine R Calvo, Cynthia E Dunbar, Neal S Young
Background Acquired aplastic anemia results from immune-mediated destruction of bone marrow. Immunosuppressive therapies are effective, but reduced numbers of residual stem cells may limit their efficacy. In patients with aplastic anemia that was refractory to immunosuppression, eltrombopag, a synthetic thrombopoietin-receptor agonist, led to clinically significant increases in blood counts in almost half the patients. We combined standard immunosuppressive therapy with eltrombopag in previously untreated patients with severe aplastic anemia...
April 20, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28423197/diabetic-kidney-transplant-recipients-impaired-infection-control-and-increased-alloreactivity
#16
Thomas Schachtner, Maik Stein, Petra Reinke
BACKGROUND: Posttransplantation diabetes mellitus (PTDM) has been associated with inferior patient and allograft outcomes. However, previous studies didn't identify differences in infection control and alloreactivity. METHODS: We studied 449 kidney transplant recipients (KTRs) between 2005 and 2013. 50 (11.1%) KTRs were diagnosed with PTDM and 60 (13.4%) KTRs with pre-existing diabetes. Samples were collected pretransplantation, at +1, +2, +3 months posttransplantation...
April 19, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28423034/elevated-frequencies-of-cd8-t-cells-expressing-pd-1-ctla-4-and-tim-3-within-tumour-from-perineural-squamous-cell-carcinoma-patients
#17
Richard Linedale, Campbell Schmidt, Brigid T King, Annabelle G Ganko, Fiona Simpson, Benedict J Panizza, Graham R Leggatt
Perineural spread of tumour cells along cranial nerves is a severe complication of primary cutaneous squamous cell carcinomas of the head and neck region. While surgical excision of the tumour is the treatment of choice, removal of all the tumour is often complicated by the neural location and recurrence is frequent. Non-invasive immune treatments such as checkpoint inhibitor blockade may be useful in this set of tumours although little is understood about the immune response to perineural spread of squamous cell carcinomas...
2017: PloS One
https://www.readbyqxmd.com/read/28422742/multi-omics-study-revealing-the-complexity-and-spatial-heterogeneity-of-tumor-infiltrating-lymphocytes-in-primary-liver-carcinoma
#18
Lijun Shi, Yang Zhang, Lin Feng, Liming Wang, Weiqi Rong, Fan Wu, Jianxiong Wu, Kaitai Zhang, Shujun Cheng
Intratumoral heterogeneity has been revealed in primary liver carcinoma (PLC). However, spatial heterogeneity of tumor-infiltrating lymphocytes (TILs), which reflects one dimension of a tumor's spatial heterogeneity, and the relationship between TIL diversity, local immune response and mutation burden remain unexplored in PLC. Therefore, we performed immune repertoire sequencing, gene expression profiling analysis and whole-exome sequencing in parallel on five regions of each tumor and on matched adjacent normal tissues and peripheral blood from five PLC patients...
March 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/28421046/horses-in-denmark-are-a-reservoir-of-diverse-clones-of-methicillin-resistant-and-susceptible-staphylococcus-aureus
#19
Md Zohorul Islam, Carmen Espinosa-Gongora, Peter Damborg, Raphael N Sieber, Rikke Munk, Louise Husted, Arshnee Moodley, Robert Skov, Jesper Larsen, Luca Guardabassi
Denmark is a country with high prevalence of livestock-associated methicillin-resistant Staphylococcus aureus (MRSA) clonal complex (CC) 398 in pigs. Even though pig farming is regarded as the main source of human infection or colonization with MRSA CC398, 10-15% of the human cases appear not to be linked to pigs. Following the recent reports of MRSA CC398 in horses in other European countries and the lack of knowledge on S. aureus carriage in this animal species, we carried out a study to investigate whether horses constitute a reservoir of MRSA CC398 in Denmark, and to gain knowledge on the frequency and genetic diversity of S...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28420819/synonymous-and-biased-codon-usage-by-mers-cov-papain-like-and-3cl-proteases
#20
Mahmoud Kandeel, Abdallah Altaher
Middle East respiratory syndrome coronavirus (MERS CoV) is a recently evolved fatal respiratory disease that poses a concern for a global epidemic. MERS CoV encodes 2 proteases, 3C-like protease (3CLpro) and papain-like protease (PLpro). These proteases share in processing MERS CoV polyproteins at different sites to yield 16 nonstructural proteins. In this work, we provide evidence that MERS CoV 3CLpro and PLpro are subject to different genetic and evolutionary influences that shape the protein sequence, codon usage pattern, and codon usage bias...
April 18, 2017: Biological & Pharmaceutical Bulletin
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