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https://www.readbyqxmd.com/read/29671873/t-cell-derived-ifn-%C3%AE-downregulates-protective-group-2-innate-lymphoid-cells-in-murine-lupus-erythematosus
#1
Mathis Düster, Martina Becker, Ann-Christin Gnirck, Malte Wunderlich, Ulf Panzer, Jan-Eric Turner
Innate lymphoid cells (ILCs) are important regulators of the immune response and play a crucial role in the restoration of tissue homeostasis after injury. GATA-3+ IL-13- and IL-5-producing group 2 innate lymphoid cells (ILC2s) have been shown to promote tissue repair in barrier organs, but despite extensive research on ILCs in the recent years, their potential role in autoimmune diseases is still incompletely understood. In the present study, we investigate the role of ILC2s in the MRL/MpJ-Faslpr (MRL-lpr) mouse model for severe organ manifestation of systemic lupus erythematosus (SLE)...
April 19, 2018: European Journal of Immunology
https://www.readbyqxmd.com/read/29668284/the-double-edged-effect-of-hydroxychloroquine-on-human-umbilical-cord-derived-mesenchymal-stem-cells-treating-lupus-nephritis-in-mrl-lpr-mice
#2
Shaoshan Mai, Lin Zou, Xiaoyan Tian, Xiao Liao, Yizhao Luan, Xing Han, Yuling Wei, Yue Wu, Shengnan Kuang, Yang Yang, Jie Ma, Qi Chen, Junqing Yang
Hydroxychlorquine(HCQ) and human umbilical cord-derived mesenchymal stem cells (UC-MSCs) were used to treat systemic lupus erythematosus(SLE),respectively. However, the effect of HCQ on UC-MSCs in lupus nephritis (LN) has not been investigated. In this study, HCQ and UC-MSCs were used in MRL/lpr mice. Surprisingly, although the treatment of both HCQ and UC-MSCs could ameliorate renal damage separately, the presence of HCQ decreased unexpectedly the therapeutic effects of UC-MSCs through interfering expression of IFN-γ...
April 18, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29652032/prevalence-and-clinical-predictors-of-lpr-among-patients-diagnosed-with-gerd-according-to-the-reflux-symptom-index-questionnaire
#3
Mahmoud Mosli, Bashaer Alkhathlan, Abdulmalik Abumohssin, Mazin Merdad, Ameen Alherabi, Osama Marglani, Hani Jawa, Talal Alkhatib, Hani Z Marzouki
Background/Aims: Gastroesophageal reflux disease (GERD) is a common condition that can lead to significant morbidity. Laryngopharyngeal reflux (LPR) is a distinct clinical entity that can occur simultaneously with GERD, necessitating additional treatment measures. The degree of overlap and clinical predictors of LPR among patients with GERD remains unknown. We aim to measure the prevalence of LPR in patients with GERD and identify clinical predictors. Patients and Methods: We performed a cross-sectional study involving patients with confirmed GERD according to the GERD questionnaire (GerdQ) using the reflux symptom index (RSI)...
April 13, 2018: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/29649335/molecular-characterization-of-the-lipophorin-receptor-in-the-crustacean-ectoparasite-lepeophtheirus-salmonis
#4
Muhammad Tanveer Khan, Sussie Dalvin, Qaiser Waheed, Frank Nilsen, Rune Male
The Salmon louse (Lepeophtheirus salmonis) is a marine ectoparasite of salmonid fish in the Northern Hemisphere and considered as a major challenge in aquaculture and a threat to wild populations of salmonids. Adult female lice produce a large number of lipid-rich eggs, however, the mechanism of maternal lipid transport into developing eggs during salmon louse reproduction has not been described. In the present study, a full-length L. salmonis lipophorin receptor (LsLpR) consisting of 16 exons was obtained by RACE and RT-PCR...
2018: PloS One
https://www.readbyqxmd.com/read/29627289/mechanisms-of-neuropsychiatric-lupus-the-relative-roles-of-the-blood-cerebrospinal-fluid-barrier-versus-blood-brain-barrier
#5
Sivan Gelb, Ariel D Stock, Shira Anzi, Chaim Putterman, Ayal Ben-Zvi
The pathogenesis of neuropsychiatric lupus (NPSLE) is believed to include the entry of circulating neuropathic antibodies to the brain via a pathologically permeable blood-brain barrier (BBB). Nevertheless, direct evidence of BBB pathology or mechanisms underlying BBB dysfunction is missing. Here, we examined BBB integrity in an established NPSLE mouse model (MRL/faslpr/lpr ). Surprisingly, challenging the barrier with various exogenous tracers demonstrated insignificant changes in BBB permeability. Furthermore, electron microscopy showed no ultrastructure changes supporting hyper-permeability...
April 4, 2018: Journal of Autoimmunity
https://www.readbyqxmd.com/read/29604292/improved-diet-quality-associates-with-reduction-in-liver-fat-particularly-in-individuals-with-high-genetic-risk-scores-for-nonalcoholic-fatty-liver-disease
#6
Jiantao Ma, Rachel Hennein, Chunyu Liu, Michelle T Long, Udo Hoffmann, Paul F Jacques, Alice H Lichtenstein, Frank B Hu, Daniel Levy
BACKGROUND & AIMS: Dietary modification has been recommended for treatment of nonalcoholic fatty liver disease (NAFLD), although it is not clear whether improving diet quality can prevent its development. We performed a prospective study to examine the association between diet quality change and change in liver fat change. We also examined the association between genetic risk score and liver fat change in individuals with different levels of diet quality change. METHODS: Our study included 1521 participants who attended the seventh and eighth examinations (1998-2001 and 2005-2008) of the second-generation cohort or attended the first and second examinations (2002-2005 and 2008-2011) of the third-generation cohort in the Framingham Heart Study...
March 28, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29593732/a-distinct-t-follicular-helper-cell-subset-infiltrates-the-brain-in-murine-neuropsychiatric-lupus
#7
Shweta Jain, Ariel Stock, Fernando Macian, Chaim Putterman
Neuropsychiatric symptoms in systemic lupus erythematosus (SLE) are not uncommon, yet the mechanisms underlying disease initiation and progression in the brain are incompletely understood. Although the role of T cells in other lupus target organs such as the kidney is well defined, which T cells contribute to the pathogenesis of neuropsychiatric SLE is not known. The present study was aimed at characterizing the CD4 T cell populations that are present in the choroid plexus (CP) of MRL/MpJ-fas lpr mice, the primary site of brain infiltration in this classic lupus mouse model which exhibits a prominent neurobehavioral phenotype...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29582172/gender-differences-in-the-presentation-of-dysphonia-related-to-laryngopharyngeal-reflux-disease-a-case-control-study
#8
Jérôme R Lechien, Kathy Huet, Mohamad Khalife, Anne-Françoise Fourneau, Camille Finck, Véronique Delvaux, Myriam Piccaluga, Bernard Harmegnies, Sven Saussez
OBJECTIVE: To investigate the voice quality impairments in patients with laryngopharyngeal reflux (LPR) according to the gender. DESIGN: Controlled multi-center study. MATERIALS AND METHODS: 80 LPR patients (40 males and 40 females) with reflux finding score (RFS) > 7 and reflux symptom index (RSI) > 13 were included and clinically compared according to gender. To be considered as LPR patients, subjects responded to an empiric therapeutic trial based on pantoprazole intake and diet recommendations for 3 months or had positive pH/Impedance metry...
March 26, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29578533/microrna-663-induces-immune-dysregulation-by-inhibiting-tgf-%C3%AE-1-production-in-bone-marrow-derived-mesenchymal-stem-cells-in-patients-with-systemic-lupus-erythematosus
#9
Linyu Geng, Xiaojun Tang, Kangxing Zhou, Dandan Wang, Shiying Wang, Genhong Yao, Weiwei Chen, Xiang Gao, Wanjun Chen, Songtao Shi, Nan Shen, Xuebing Feng, Lingyun Sun
Mesenchymal stem cells (MSCs) are critical for immune regulation. Although several microRNAs (miRNAs) have been shown to participate in autoimmune pathogenesis by affecting lymphocyte development and function, the roles of miRNAs in MSC dysfunction in autoimmune diseases remain unclear. Here, we show that patients with systemic lupus erythematosus (SLE) display a unique miRNA signature in bone marrow-derived MSCs (BMSCs) compared with normal controls, among which miR-663 is closely associated with SLE disease activity...
March 26, 2018: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/29572548/t-cells-from-induced-and-spontaneous-models-of-sle-recognize-a-common-t-cell-epitope-on-%C3%AE-2-glycoprotein-i
#10
David Salem, Rebecca Subang, Masataka Kuwana, Jerrold S Levine, Joyce Rauch
Systemic lupus erythematosus is a prototypic model for B-cell epitope spread in autoimmunity. Autoantibodies to numerous molecularly distinct self-antigens emerge in a sequential manner over several years, leading to disease manifestations. Among the earliest autoantibodies to appear are those targeting phospholipid-binding proteins, particularly β2-glycoprotein I. Notably, mice immunized with β2-glycoprotein I and lipopolysaccharide develop a strong T cell response to β2-glycoprotein I that is associated with autoantibody production and renal disease, similar to that seen in human SLE...
March 23, 2018: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/29570934/non-erythropoietic-erythropoietin-derived-peptide-protects-mice-from-systemic-lupus-erythematosus
#11
Bo Huang, Juntao Jiang, Bangwei Luo, Wen Zhu, Yuqi Liu, Zhishang Wang, Zhiren Zhang
Systemic lupus erythematosus (SLE) is an autoimmune disease, which results in various organ pathologies. However, current treatment towards SLE is suboptimal. Erythropoietin (EPO) has been shown to promote SLE recovery, but clinical application can be limited by its haematopoiesis-stimulating effects. EPO-derived helix-B peptide (ARA290) is non-erythrogenic but has been reported to retain the anti-inflammatory and tissue-protective functions of EPO. Therefore, here we investigated the effects and potential mechanisms of ARA290 on SLE...
March 23, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29568865/trifluoperazine-induces-apoptosis-through-the-upregulation-of-bax-bcl%C3%A2-2-and-downregulated-phosphorylation-of-akt-in-mesangial-cells-and-improves-renal-function-in-lupus-nephritis-mice
#12
Baodong Wang, Yankun Luo, Xiaoshuang Zhou, Rongshan Li
The inhibition of mesangial cell (MC) proliferation has become an important therapy in preventing glomerular proliferation diseases. Trifluoperazine (TFP) has been reported to inhibit the proliferation of several types of cancer cell, however, the effects of TFP in renal proliferation diseases remain to be fully elucidated. The present study examined the effects of TFP on the proliferation of MCs and quantified cell apoptosis progression in vivo and in vitro. The effects of various TFP concentrations and treatment durations on cell proliferation and cell apoptosis in vitro were analyzed using flow cytometry in conjunction with a Cell Counting kit‑8 assay...
March 13, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29548997/fty720-attenuates-behavioral-deficits-in-a-murine-model-of-systemic-lupus-erythematosus
#13
Dongyan Shi, Tongguan Tian, Shu Yao, Kelei Cao, Xingxing Zhu, Mingshun Zhang, Shuang Wen, Longjun Li, Meiqing Shi, Hong Zhou
Neuropsychiatric (NP) involvement in systemic lupus erythematosus (SLE) severely impacts patients' quality of life and leads to a poor prognosis. The current therapeutic protocol, corticosteroid administration, can also induce neuropsychiatric disorders. FTY720 is an immunomodulator that selectively confines lymphocytes in lymph nodes and reduces autoreactive T cell recruitment to the central nervous system (CNS). This study aimed to identify a novel therapeutic strategy for NPSLE. B6.MRL-lpr mice were treated with oral administration of FTY720 (2 mg/kg) three times per week for 12 weeks, to evaluate its efficacy in a model of NPSLE...
March 13, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29534167/simultaneous-laryngopharyngeal-ph-monitoring-restech-and-conventional-esophageal-ph-monitoring-correlation-using-a-large-patient-cohort-of-more-than-100-patients-with-suspected-gastroesophageal-reflux-disease
#14
H F Fuchs, D T Müller, F Berlth, M K Maus, C Fuchs, M Dübbers, W Schröder, C J Bruns, J M Leers
24-hour esophageal pH-metry is not designed to detect laryngopharyngeal reflux (LPR). The new laryngopharyngeal pH-monitoring system (Restech) may detect LPR better. There is no established correlation between these two techniques as only small case series exist. The aim of this study is to examine the correlation between the two techniques with a large patient cohort. All patients received a complete diagnostic workup for gastroesophageal reflux including symptom evaluation, endoscopy, 24-hour pH-metry, high resolution manometry, and Restech...
March 8, 2018: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/29525851/effect-of-an-exercise-program-on-lymphocyte-proliferative-responses-of-copd-patients
#15
Juliana Ruiz Fernandes, Cibele Cristine Berto Marques da Silva, Aline Grandi da Silva, Regina Maria de Carvalho Pinto, Alberto José da Silva Duarte, Celso Ricardo Carvalho, Gil Benard
Exercise training has been shown to reduce symptoms and exacerbations in COPD patients; however, the exercise effect on patients' immune response is poorly known. We thus verified if an exercise program (EP) impacted on proliferative T cell response of COPD patients. Fourteen non-O2 dependent COPD patients on standard treatment were studied. EP consisted in 24 sessions of aerobic and muscular training. Peripheral blood mononuclear cells were stimulated with the mitogen phytohemagglutinin and antigens from Haemophilus influenzae and cytomegalovirus, and the lymphocyte proliferative response (LPR) was assessed through the expression of Ki67 before and after the EP...
March 10, 2018: Lung
https://www.readbyqxmd.com/read/29521570/platelet-reactivity-in-patients-with-acute-coronary-syndrome-treated-with-prasugrel-or-ticagrelor-in-comparison-to-clopidogrel-a-retrospective-pharmacodynamic-analysis
#16
Gerhard Selhorst, Fabian Schmidtler, Armin Ott, Evelyn Hitzke, June Tomelden, Diethmar Antoni, Ellen Hoffmann, Johannes Rieber
Dual antiplatelet therapy (DAPT) with aspirin and a P2Y12 inhibitor is a mainstay of the prevention of stent thrombosis following percutaneous coronary intervention (PCI). In the 2015 European guidelines for the management of acute coronary syndrome (ACS), prasugrel (PRA) and ticagrelor (TICA) combined with aspirin are recommended as first-line therapy. Clopidogrel (CLO) is recommended as an alternative medication for patients with contradictions to these new drugs. This single-center study analyzed the platelet function of 809 ACS patients undergoing PCI and treatment with DAPT...
March 9, 2018: Platelets
https://www.readbyqxmd.com/read/29508265/cerebral-metabolic-changes-related-to-oxidative-metabolism-in-a-model-of-bacterial-meningitis-induced-by-lipopolysaccharide
#17
M Munk, F R Poulsen, L Larsen, C H Nordström, T H Nielsen
BACKGROUND: Cerebral mitochondrial dysfunction is prominent in the pathophysiology of severe bacterial meningitis. In the present study, we hypothesize that the metabolic changes seen after intracisternal lipopolysaccharide (LPS) injection in a piglet model of meningitis is compatible with mitochondrial dysfunction and resembles the metabolic patterns seen in patients with bacterial meningitis. METHODS: Eight pigs received LPS injection in cisterna magna, and four pigs received NaCl in cisterna magna as a control...
March 5, 2018: Neurocritical Care
https://www.readbyqxmd.com/read/29508016/dual-immuno-renal-targeting-of-7-benzylidenenaltrexone-alleviates-lupus-nephritis-via-fc%C3%AE-riib-and-ho-1
#18
Tsung-Chih Tseng, Duen-Yi Huang, Liang-Chuan Lai, Haw Hwai, Yi-Wen Hsiao, Jyun-Pei Jhou, Eric Y Chuang, Shiang-Jong Tzeng
Known as a selective δ1 opioid receptor (DOR1) antagonist, the 7-benzylidenenaltrexone (BNTX) is also a DOR1-independent immunosuppressant with unknown mechanisms. Here we investigated if BNTX could be beneficial for diseased MRL/lpr lupus mice. We treated mice with 0.5, 2, 5 or 10 mg/kg/day of BNTX for 2 weeks. At as low as 2 mg/kg/day, BNTX significantly improved splenomegaly and lymphadenopathy. Notably, B cell numbers, particularly autoreactive plasma cells, were preferentially reduced; moreover, BNTX enhanced surface expression of FcγRIIB, an immune complex (IC)-dependent apoptotic trigger of B cells...
March 5, 2018: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29495022/medical-conditions-and-erosive-tooth-wear
#19
R Moazzez, R Austin
There are many reasons why it is vital that dental professionals identify signs and symptoms that suggest that an individual's erosive tooth wear (ETW) may be linked to a broader medical problem than just poor diet. Primarily, spotting an underlying medical cause for ETW increases the likelihood that further deterioration in the individual's oral health will be prevented. However, perhaps more importantly, many of the medical conditions which are commonly related to ETW can have serious and even possibly fatal consequences if left untreated or not diagnosed...
March 2, 2018: British Dental Journal
https://www.readbyqxmd.com/read/29494321/clinical-practice-guideline-hoarseness-dysphonia-update
#20
Robert J Stachler, David O Francis, Seth R Schwartz, Cecelia C Damask, German P Digoy, Helene J Krouse, Scott J McCoy, Daniel R Ouellette, Rita R Patel, Charles Charlie W Reavis, Libby J Smith, Marshall Smith, Steven W Strode, Peak Woo, Lorraine C Nnacheta
Objective This guideline provides evidence-based recommendations on treating patients who present with dysphonia, which is characterized by altered vocal quality, pitch, loudness, or vocal effort that impairs communication and/or quality of life. Dysphonia affects nearly one-third of the population at some point in its life. This guideline applies to all age groups evaluated in a setting where dysphonia would be identified or managed. It is intended for all clinicians who are likely to diagnose and treat patients with dysphonia...
March 2018: Otolaryngology—Head and Neck Surgery
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