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https://www.readbyqxmd.com/read/28646630/characteristics-of-systemic-inflammation-in-hepatitis-b-precipitated-aclf-differentiate-it-from-no-aclf
#1
Wei Wu, Huadong Yan, Hong Zhao, Wenjie Sun, Qiao Yang, Jifang Sheng, Yu Shi
BACKGROUND AND AIMS: Patients with severe exacerbation of chronic hepatitis B (SE-CHB) are at risk of developing acute-on-chronic liver failure (ACLF). Systemic inflammation (SI) is a major driver of ACLF. The aim of this study was to identify characteristics of SI in hepatitis B-precipitated-ACLF (HB-ACLF), which may be distinct from No-ACLF patients with SE-CHB. METHODS: Two cohorts of patients with SE-CHB were enrolled in two tertiary hospitals. The associations between circulating leukocyte counts/subsets and ACLF progression and prognoses were analysed in Cohort A...
June 24, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28646583/sebum-lipids-influence-macrophage-polarization-and-activation
#2
M Lovászi, M Mattii, K Eyerich, Attila Gácsi, Erzsébet Csányi, D Kovács, R Rühl, A Szegedi, L Kemény, M Ståhle, C C Zouboulis, S Eyerich, D Törőcsik
BACKGROUND: As lipids are known to regulate macrophage functions it is reasonable to suppose that a sebocyte - macrophage axis mediated by sebum lipids may exist. OBJECTIVE: To investigate if sebocytes could contribute to the differentiation, polarization and function of macrophages with their secreted lipids. METHODS: Oil-red-O lipid staining and Raman spectroscopy were used to assess the dermal lipid content and penetration. Immunohistochemistry was used to analyse the macrophage subsets...
June 24, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28646565/complete-molecular-remission-in-relapsed-and-refractory-acute-myeloid-leukaemia-with-mll-af9-treated-with-chidamide-based-chemotherapy
#3
Y Lun, J-J Yang, Y Wu
WHAT IS KNOWN AND OBJECTIVE: The mixed lineage leukaemia (MLL) gene translocations are found in approximately 10% of adults with acute myeloid leukaemia (AML) and are markers of poor prognosis. As the best reported response in relapsed and refractory MLL-rearranged AML is around 40%, reinduction treatment is very challenging for those patients. CASE DESCRIPTION: We report a case of relapsed and refractory AML with MLL-AF9, who did not respond to FLAG (fludarabine, cytarabine, granulocyte colony stimulating factor) regimen reinduction treatment, but achieved complete response and molecular remission after chidamide-based chemotherapy...
June 23, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28646538/a-novel-attr-l32v-mutation-causes-familial-amyloid-polyneuropathy-in-a-bolivian-family
#4
P L Martínez-Ulloa, M Vallejo, I Corral, N García-Barragán, A Alcazar, Emma Martínez-Alonso, J Martínez-Poles, H Pian, A Jiménez-Escrig
We report a new transthyretin (ATTR) gene c.272C>G mutation and variant protein, p.Leu32Val, in a kindred of Bolivian origin with a rapid progressive peripheral neuropathy and cardiomyopathy. Three individuals from a kindred with peripheral nerve and cardiac amyloidosis were examined. Analysis of the TTR gene was performed by Sanger direct sequencing. Neuropathologic examination was obtained on the index patient with mass spectrometry study of the ATTR deposition. Direct DNA sequence analysis of exons 2, 3 and 4 of the TTR gene demonstrated a c...
June 24, 2017: Journal of the Peripheral Nervous System: JPNS
https://www.readbyqxmd.com/read/28646510/compound-muscle-action-potential-duration-in-critical-illness-neuromyopathy
#5
Christopher L Kramer, Andrea J Boon, C Michel Harper, Brent P Goodman
BACKGROUND: We sought to determine the specificity of compound muscle action potential (CMAP) durations and amplitudes in a large critical illness neuromyopathy (CINM) cohort relative to controls with other neuromuscular conditions. METHODS: Fifty-eight patients with CINM seen over a 17-year period were retrospectively studied. Electrodiagnostic findings of the CINM cohort were compared with patients with axonal peripheral neuropathy and myopathy due to other causes...
June 23, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28646405/revealing-the-importance-of-linkers-in-k-series-oxime-reactivators-for-tabun-inhibited-ache-using-quantum-chemical-docking-and-smd-studies
#6
Shibaji Ghosh, Nellore Bhanu Chandar, Kalyanashis Jana, Bishwajit Ganguly
Inhibition of acetylcholinesterase (AChE) with organophosphorus compounds has a detrimental effect on human life. Oxime K203 seems to be one of the promising reactivators for tabun-inhibited AChE than (K027, K127, and K628). These reactivators differ only in the linker units between the two pyridinium rings. The conformational analyses performed with quantum chemical RHF/6-31G* level for K027, K127, K203 and K628 showed that the minimum energy conformers have different orientations of the active and peripheral pyridinium rings for these reactivator molecules...
June 23, 2017: Journal of Computer-aided Molecular Design
https://www.readbyqxmd.com/read/28646389/photodynamic-therapy-controls-of-staphylococcus-aureus-intradermal-infection-in-mice
#7
Palloma Porto Almeida, Ítalo Sousa Pereira, Karine Bitencourt Rodrigues, Lorena Santos Leal, Andressa Souza Marques, Luciano Pereira Rosa, Francine Cristina da Silva, Robson Amaro Augusto da Silva
Infections caused by Staphylococcus aureus lead to skin infections, as well as soft tissues and bone infections. Given the communal resistance to antibiotics developed by strains of this bacterium, photodynamic therapy emerges as a promising alternative treatment to control and cure infections. Females of the Balb/C mice were infected with 10(8) CFU of methicillin-resistant S. aureus (MRSA) and divided into four distinct groups: P-L- (negative control group), P+L- (group exposed only to curcumin), P-L+ (group exposed only to LED incidence of 450 nm, 75 mW/cm(2), and 54 J/cm(2) for 10 min), and P+L+ (group exposed to curcumin followed by 10 min of LED irradiation) (n = 24)...
June 23, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28646364/sinonasal-malignancies-incidence-and-histological-distribution-in-jamaica-1973-2007
#8
Tracey N Gibson, Dawn P McNaughton, Barrie Hanchard
PURPOSE: To determine the histological distribution and trends in incidence of sinonasal malignancies in Jamaica. METHODS: Cases of all sinonasal malignancies diagnosed between 1973 and 2007 were extracted from the archives of the Jamaica Cancer Registry. Data recorded for each case included age at diagnosis, sex, year of diagnosis, topography, and histology. Data were used to calculate frequencies, age-specific incidence rates, and age-standardized incidence rates (ASRs)...
June 23, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28646302/t-regulatory-cells-exhibit-a-biphasic-response-to-prolonged-endurance-exercise-in-humans
#9
Tom Clifford, Matthew J Wood, Philip Stocks, Glyn Howatson, Emma J Stevenson, Catharien M U Hilkens
PURPOSE: T-regulatory cells (Tregs) are a sub-population of lymphocytes that act to suppress aberrant immune responses. We investigated changes in the numbers of naïve and terminally differentiated Tregs in the peripheral blood to establish their role in the immuno-suppressive response to prolonged exercise. METHODS: Blood was drawn from seventeen experienced runners (age 40 ± 12 years; height 1.75 ± 0.08 m; mass 71.4 ± 10.8 kg) before, ~1 h after (POST-1h), and on the day following the marathon (POST-1d)...
June 23, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28646273/pulmonary-vascular-volume-ratio-measured-by-cardiac-computed-tomography-in-children-and-young-adults-with-congenital-heart-disease-comparison-with-lung-perfusion-scintigraphy
#10
Hyun Woo Goo, Sang Hyub Park
BACKGROUND: Lung perfusion scintigraphy is regarded as the gold standard for evaluating differential lung perfusion ratio in congenital heart disease. OBJECTIVE: To compare cardiac CT with lung perfusion scintigraphy for estimated pulmonary vascular volume ratio in patients with congenital heart disease. MATERIALS AND METHODS: We included 52 children and young adults (median age 4 years, range 2 months to 28 years; 31 males) with congenital heart disease who underwent cardiac CT and lung perfusion scintigraphy without an interim surgical or transcatheter intervention and within 1 year...
June 23, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28646260/salt-appetite-and-the-influence-of-opioids
#11
Craig M Smith, Andrew J Lawrence
Due to the biological importance of sodium and its relative scarcity within many natural environments, 'salt appetite' has evolved whereby dietary salt is highly sought after and palatable when tasted. In addition to peripheral responses, salt depletion is detected within the brain via circumventricular organs and 11β-hydroxysteroid dehydrogenase type 2 (HSD2) neurons to increase salt appetite. Salt appetite is comprised of two main components. One component is the incentive salience or motivation for salt (i...
June 24, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28646209/upregulation-of-circulating-microrna-134-in-adult-onset-still-s-disease-and-its-use-as-potential-biomarker
#12
Tsai-Ling Liao, Yi-Ming Chen, Chia-Wei Hsieh, Hsin-Hua Chen, Hsiu-Chin Lee, Wei-Ting Hung, Kuo-Tung Tang, Der-Yuan Chen
Adult-onset Still's disease (AOSD) is a multi-systemic inflammatory disorder of unknown etiology. To date, no single diagnostic test is available for AOSD. Herein, we investigated the pathogenic role of microRNAs in AOSD. MicroRNA profiles in plasma from AOSD patients and healthy controls were analyzed by microarray analysis, followed by quantitative reverse transcription PCR validation. The biological functions of microRNAs were evaluated using in vitro cell-based assay. Among the differentially expressed microRNAs, microRNA-134 (miR-134) expression was positively correlated with AOSD activity scores and significantly decreased after effective treatment...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646200/mesenchymal-stem-cells-secretome-induced-axonal-outgrowth-is-mediated-by-bdnf
#13
Luís F Martins, Rui O Costa, Joana R Pedro, Paulo Aguiar, Sofia C Serra, Fabio G Teixeira, Nuno Sousa, António J Salgado, Ramiro D Almeida
Mesenchymal stem cells (MSCs) have been used for cell-based therapies in regenerative medicine, with increasing importance in central and peripheral nervous system repair. However, MSCs grafting present disadvantages, such as, a high number of cells required for transplantation and low survival rate when transplanted into the central nervous system (CNS). In line with this, MSCs secretome which present on its composition a wide range of molecules (neurotrophins, cytokines) and microvesicles, can be a solution to surpass these problems...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646184/homing-of-cultured-endothelial-progenitor-cells-and-their-effect-on-traumatic-brain-injury-in-rat-model
#14
Xin-Bin Guo, Xin Deng, Ying Wei
Transplanted endothelial progenitor cells (EPCs) may play an important role in reestablishing the endothelial integrity of the vessels after brain injury, and contribute to neurogenesis. We, therefore, tested the homing of ex vivo cultured peripheral blood-derived EPCs and their effect on injured brain tissue after intravenous administration. To track the homing of implanted EPCs in injured brain tissues, EPCs were labeled with DAPI and BrdU in vitro before transplantation. EPCs were transplanted into the host animal through peripheral administration through the femoral vein, and homing of EPCs was evaluated...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646160/loss-of-g%C3%AE-i-proteins-impairs-thymocyte-development-disrupts-t-cell-trafficking-and-leads-to-an-expanded-population-of-splenic-cd4-pd-1-cxcr5-t-cells
#15
Il-Young Hwang, Kathleen Harrison, Chung Park, John H Kehrl
Thymocyte and T cell trafficking relies on signals initiated by G-protein coupled receptors. To address the importance of the G-proteins Gαi2 and Gαi3 in thymocyte and T cell function, we developed several mouse models. Gαi2 deficiency in hematopoietic progenitors led to a small thymus, a double negative (DN)1/DN2 thymocyte transition block, and an accumulation of mature single positive (SP) thymocytes. Loss at the double positive (DP) stage of thymocyte development caused an increase in mature cells within the thymus...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646141/human-sialidase-neu3-is-s-acylated-and-behaves-like-an-integral-membrane-protein
#16
Macarena Rodriguez-Walker, Jose L Daniotti
Membrane-bound sialidase Neu3 is involved in the catabolism of glycoconjugates, and plays crucial roles in numerous biological processes. Since the mechanism of its association with membranes is still not completely understood, the aim of this work was to provide further information regarding this aspect. Human Neu3 was found to be associated with the plasma membrane and endomembranes, and it was not released from the lipid bilayer under conditions that typically release peripheral membrane proteins. By different experimental approaches, we demonstrated that its C-terminus is exposed to the cytosol while another portion of the protein is exposed to the extracellular space, suggesting that Neu3 possesses the features of a transmembrane protein...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646123/expression-of-mir-23a-induces-telomere-shorteningand-is-associated-with-poor-clinical-outcomesin-patients-with-coronary-artery-disease
#17
Mamoru Satoh, Takahito Nasu, Yuji Takahashi, Takuya Osaki, Sho Hitomi, Yoshihiro Morino, Motoyuki Nakamura
Telomeric repeat binding factor 2 (TRF2) plays an important role in telomere maintenance. MicroRNA (miR)-23a may directly inhibit TRF2 expression, inducing telomere shortening and cellular senescence. This study aimed to determine whether miR-23a and TRF2 are expressed in patients with coronary artery disease (CAD), and whether pitavastatin might affect these levels. This study included 104 patients with CAD and 50 controls. Patients with CAD were randomly divided into two subgroups [a moderate lipid lowering therapy (LLT) group and an aggressive LLT group]...
June 23, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28646042/on-the-role-il-4-il-13-heteroreceptor-plays-in-regulation-of-type-1-diabetes
#18
Tobechukwu K Ukah, Alexis N Cattin-Roy, Weirong Chen, Mindy M Miller, Subhasis Barik, Habib Zaghouani
Type 1 diabetes (T1D) manifests when the insulin-producing pancreatic β cells are destroyed as a consequence of an inflammatory process initiated by lymphocytes of the immune system. The NOD mouse develops T1D spontaneously and serves as an animal model for human T1D. The IL-4Rα/IL-13Rα1 heteroreceptor (HR) serves both IL-4 and IL-13 cytokines, which are believed to function as anti-inflammatory cytokines in T1D. However, whether the HR provides a responsive element to environmental (i.e., physiologic) IL-4/IL-13 in the regulation of peripheral tolerance and the development of T1D has yet to be defined...
June 23, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28646022/nf1-hematopoietic-cells-accelerate-malignant-peripheral-nerve-sheath-tumor-development-without-altering-chemotherapy-response
#19
Rebecca D Dodd, Chang-Lung Lee, Tess Overton, Wesley Huang, William C Eward, Lixia Luo, Yan Ma, Davis R Ingram, Keila E Torres, Diana M Cardona, Alexander Lazar, David G Kirsch
Haploinsufficiency in the tumor suppressor NF1 contributes to the pathobiology of type 1 neurofibromatosis, but a related role has not been established in malignant peripheral nerve sheath tumors (MPNST) where NF1 mutations also occur. Patients with NF1-associated MPNST appear to have worse outcomes than patients with sporadic MPNST, but the mechanism underlying this correlation is not understood. To define the impact of stromal genetics on the biology of this malignancy, we developed unique mouse models that reflect the genetics of patient-associated MPNST...
June 23, 2017: Cancer Research
https://www.readbyqxmd.com/read/28645939/combined-btk-and-pi3k%C3%AE-inhibition-with-acalabrutinib-and-acp-319-improves-survival-and-tumor-control-in-cll-mouse-model
#20
Carsten U Niemann, Helena I Mora-Jensen, Eman L Dadashian, Fanny Krantz, Todd Covey, Shih-Shih Chen, Nicholas- Chiorazzi, Raquel Izumi, Roger Ulrich, Brian J Lannutti, Adrian Wiestner, Sarah E M Herman
Purpose: Targeting the B-cell receptor (BCR) pathway with inhibitors of BTK and PI3K-delta is highly effective for the treatment of chronic lymphocytic leukemia (CLL). However, deep remissions are uncommon and drug resistance with single-agent therapy can occur. In vitro studies support the effectiveness of combing PI3K-delta and BTK inhibitors. <p>Experimental design: As CLL proliferation and survival depends on the microenvironment, we used murine models to assess the efficacy of the BTK inhibitor acalabrutinib combined with the PI3K-delta inhibitor ACP-319 in vivo We compared single-agent with combination therapy in TCL1-192 cell-injected mice, a model of aggressive CLL...
June 23, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
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