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https://www.readbyqxmd.com/read/28100505/-5r-5-hydroxytriptolide-ameliorates-lupus-nephritis-in-mrl-lpr-mice-by-preventing-infiltration-of-immune-cells
#1
Lu-Yao Zhang, Heng Li, Yan-Wei Wu, Lei Cheng, Yu-Xi Yan, Xiao-Qian Yang, Feng-Hua Zhu, Shi-Jun He, Wei Tang, Jian-Ping Zuo
(5R)-5-Hydroxytriptolide (LLDT-8), a triptolide derivative with low toxicity, was previously reported to have strong immunosuppressive effects both in vitro and in vivo, but it remains unknown whether LLDT-8 has a therapy effect on systemic lupus erythematosus. In this study, we aimed to investigate the therapeutic effects of LLDT-8 on lupus nephritis in MRL/lpr mice, a model of systemic lupus erythematosus. Compared with vehicle group, different clinical parameters were improved upon LLDT-8 treatment: prolonged life-span of mice, decreased proteinuria, downregulated blood urea nitrogen and serum creatinine, reduced glomerular IgG deposits, and ameliorated histopathology...
January 18, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28093526/cathepsin-k-deficiency-ameliorates-systemic-lupus-erythematosus-like-manifestations-in-faslpr-mice
#2
Yi Zhou, Huimei Chen, Li Liu, Xueqing Yu, Galina K Sukhova, Min Yang, Vasileios C Kyttaris, Isaac E Stillman, Bruce Gelb, Peter Libby, George C Tsokos, Guo-Ping Shi
Cysteinyl cathepsin K (CatK) is expressed in osteoclasts to mediate bone resorption, but is also inducible under inflammatory conditions. Fas(lpr) mice on a C57BL/6 background develop spontaneous systemic lupus erythematosus-like manifestations. Although normal mouse kidneys expressed negligible CatK, those from Fas(lpr) mice showed elevated CatK expression in the glomeruli and tubulointerstitial space. Fas(lpr) mice also showed elevated serum CatK levels. CatK deficiency in Fas(lpr) mice reduced all tested kidney pathologies, including glomerulus and tubulointerstitial scores, glomerulus complement C3 and IgG deposition, chemokine expression and macrophage infiltration, and serum autoantibodies...
January 16, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28089248/triggering-receptor-expressed-on-myeloid-cells-1-trem-1-deficiency-augments-baff-production-to-promote-lupus-progression
#3
Chi-Jui Liu, Chang-Youh Tsai, Ssu-Hsuan Chiang, Shye-Jye Tang, Nien-Jung Chen, Tak Wah Mak, Guang-Huan Sun, Kuang-Hui Sun
Sensing of nucleic acids by pattern recognition receptors is the key for the initiation and development of systemic lupus erythematosus (SLE). Triggering receptor expressed on myeloid cells-1 (TREM-1) is a novel innate immune receptor, which can amplify Toll-like receptor (TLR)-induced inflammatory responses. Although patients with lupus exhibit increased serum levels of soluble TREM-1 (sTREM-1), the role of TREM-1 in SLE remains unknown. In current study, we found serum sTREM-1 levels were significantly increased in lupus patients and positively correlated with disease activity...
January 11, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28078597/cd95-and-the-mrl-lpr-mouse-model
#4
Robin J Flynn
CD95 (Fas-ligand) is a key mediator of cell death in multiple setting, thus its loss within the MRL-lpr (Fas(lpr)) homozygote mice results in spontaneous autoimmunity. This is characterized by the development of arthritis and immune complex glomerulonephrosis making this strain a useful model for studying systemic lupus erythematosus. Herein we describe a method to exploit the heterozygote offspring of this strain in a model to study the effects of a CD95L blocking peptide on lupus-like disease in vivo.
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28072466/chronic-pain-and-impaired-glial-glutamate-transporter-function-in-lupus-prone-mice-are-ameliorated-by-blocking-csf-1-receptors
#5
Xisheng Yan, Dylan W Maixner, Fen Li, Han-Rong Weng
Systemic lupus erythematosus (SLE) is a multi-organ disease of unknown etiology in which the normal immune responses are directed against the body's own healthy tissues. Patients with SLE often suffer from chronic pain. Currently, no animal studies have been reported about the mechanisms underlying pain in SLE. In this study, the development of chronic pain in MRL lupus-prone (MRL/lpr) mice, a well-established lupus mouse model, was characterized for the first time. We found that female MRL/lpr mice developed thermal hyperalgesia at the age of 13 weeks, and mechanical allodynia at the age of 16 weeks...
January 10, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28069467/validity-and-reliability-of-a-french-version-of-reflux-symptom-index
#6
Jérôme R Lechien, Kathy Huet, Camille Finck, Mohamad Khalife, Anne-Françoise Fourneau, Véronique Delvaux, Myriam Piccaluga, Bernard Harmegnies, Sven Saussez
OBJECTIVE: To develop a French version of the Reflux Symptom Index (Fr-RSI) and to assess its internal consistency, reliability, and clinical validity. STUDY DESIGN: Controlled, prospective trial. MATERIALS AND METHODS: Forty-four patients with a reflux finding score > 7 and an Fr-RSI > 13 were enrolled and treated with 20 mg of pantoprazole twice daily and diet changes for 3 months. Ninety asymptomatic subjects were also included in the study...
January 6, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28065927/the-composite-water-and-solute-transport-of-barley-hordeum-vulgare-roots-effect-of-suberized-barriers
#7
Kosala Ranathunge, Yangmin X Kim, Friedrich Wassmann, Tino Kreszies, Viktoria Zeisler, Lukas Schreiber
BACKGROUND AND AIMS: Roots have complex anatomical structures, and certain localized cell layers develop suberized apoplastic barriers. The size and tightness of these barriers depend on the growth conditions and on the age of the root. Such complex anatomical structures result in a composite water and solute transport in roots. METHODS: Development of apoplastic barriers along barley seminal roots was detected using various staining methods, and the suberin amounts in the apical and basal zones were analysed using gas chromatography-mass spectometry (GC-MS)...
January 8, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28063200/effects-of-1-25-oh-2-d3-and-vitamin-d-receptor-on-peripheral-cd4-cd8-double-positive-t-lymphocytes-in-a-mouse-model-of-systemic-lupus-erythematosus
#8
Yan Ding, Wang Liao, Xiao-Jie He, Wei Xiang
This study aims to explore effects of 1,25(OH)2 D3 and vitamin D receptor (VDR) on peripheral CD4(+) /CD8(+) double-positive (DP) T lymphocytes in systemic lupus erythematosus (SLE). MRL-LPr/LPr mice with SLE (n = 20) and normal MRL mice (n = 20) were assigned into the control group (normal mice, without feeding with 1,25(OH)2 D3 ), the 1,25(OH)2 D3 group (SLE mice, feeding with 1,25(OH)2 D3 ), the VDR-knock-in + 1,25(OH)2 D3 group (SLE mice, VDR-knock-in, feeding with 1,25(OH)2 D3 ) and the VDR-knockout group (normal mice, VDR-knockout, without feeding with 1,25(OH)2 D3 ) (n = 10 per group)...
January 7, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28052406/quality-of-life-patient-satisfaction-and-disease-burden-in-patients-with-gastroesophageal-reflux-disease-with-or-without-laryngopharyngeal-reflux-symptoms
#9
Eun Jeong Gong, Kee Don Choi, Hye-Kyung Jung, Young Hoon Youn, Byung-Hoon Min, Kyung Ho Song, Kyu Chan Huh
BACKGROUND AND AIM: Patients with gastroesophageal reflux disease (GERD) have decreased health-related quality of life (HRQL). The quality of life in patients with laryngopharyngeal reflux (LPR) symptoms is also significantly impaired. However, the impact of LPR symptoms on HRQL in GERD patients has not been studied. METHODS: A nationwide, random-sample, and face-to-face survey of 300 Korean patients with GERD was conducted from January to March 2013. Gastroesophageal reflux symptoms were assessed using the Rome III questionnaire, LPR symptoms using the reflux symptom index, and HRQL using the EuroQol-5 dimensions (EQ-5D) questionnaire...
January 3, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28040739/the-lipocalin-lpr-1-cooperates-with-lin-3-egf-signaling-to-maintain-narrow-tube-integrity-in-caenorhabditis-elegans
#10
Pu Pu, Craig E Stone, Joshua T Burdick, John I Murray, Meera V Sundaram
Lipocalins are secreted cup-shaped glycoproteins that bind sterols, fatty acids, and other lipophilic molecules. Lipocalins have been implicated in a wide array of processes related to lipophilic cargo transport, sequestration and signaling, and several are used as biomarkers for human disease, but the functions of most lipocalins remain poorly understood. Here we show that the C. elegans lipocalin LPR-1 is required to maintain apical membrane integrity and a continuous lumen in two narrow, unicellular tubes, the excretory duct and pore, during a period of rapid lumen elongation...
December 30, 2016: Genetics
https://www.readbyqxmd.com/read/28008387/role-of-ph-monitoring-in-laryngopharyngeal-reflux-patients-with-voice-disorders
#11
Swati Maldhure, Ramanathan Chandrasekharan, Amit-Kumar Dutta, Ashok Chacko, Mary Kurien
INTRODUCTION: Laryngopharyngeal reflux (LPR) is considered an important cause of voice disorder. We aimed to determine the frequency of LPR in patients with voice disorder and the association between Koufman Reflux Symptom Index (RSI), Reflux Finding Score (RFS), gastroesophageal reflux disease (GERD), and proximal acid reflux in these patients. MATERIALS AND METHODS: We performed a prospective study in patients aged more than 18 years presenting at the ear, nose, and throat (ENT) clinic with a change in voice lasting more than 3 weeks...
November 2016: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28005650/impact-of-laryngopharyngeal-reflux-on-the-levels-of-depression-and-anxiety-in-patients-with-obstructive-sleep-apnea-syndrome
#12
Ahmet Altintaş, Aliye Soylu, Yakup Yegin, Mustafa Çelik, Kamil Hakan Kaya
OBJECTIVES: The aim of the study was to assess the impact of the presence of laryngopharyngeal reflux (LPR) on the level of depression and anxiety in patients with obstructive sleep apnea syndrome (OSAS). STUDY DESIGN: A nonrandomized, prospective clinical study. METHODS: In total, 62 patients with an apnea-hypopnea index >5 were included in this study. Each patients completed the 21-item Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), Epworth Sleepiness Scale (ESS), and Reflux Symptom Index (RSI)...
December 21, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28004504/association-between-24-hour-combined-multichannel-intraluminal-impedance-ph-monitoring-and-symptoms-or-quality-of-life-in-patients-with-laryngopharyngeal-reflux
#13
S I Kim, O E Kwon, S Y Na, Y C Lee, J M Park, Y G Eun
OBJECTIVE: To evaluate the association between the parameters of 24-hour multichannel intraluminal impedance (MII)-pH monitoring and the symptoms or quality of life (QoL) in laryngopharyngeal reflux (LPR) patients. DESIGN: Prospective cohort study without controls. SETTING: University teaching hospital. METHODS: Forty-five LPR patients were selected from subjects who underwent 24-hour MII-pH monitoring and were diagnosed with LPR from September 2014 to May 2015...
December 22, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28003376/selective-irak4-inhibition-attenuates-disease-in-murine-lupus-models-and-demonstrates-steroid-sparing-activity
#14
Shailesh Dudhgaonkar, Sourabh Ranade, Jignesh Nagar, Siva Subramani, Durga Shiv Prasad, Preethi Karunanithi, Ratika Srivastava, Kamala Venkatesh, Sabariya Selvam, Prasad Krishnamurthy, T Thanga Mariappan, Ajay Saxena, Li Fan, Dawn K Stetsko, Deborah A Holloway, Xin Li, Jun Zhu, Wen-Pin Yang, Stefan Ruepp, Satheesh Nair, Joseph Santella, John Duncia, John Hynes, Kim W McIntyre, Julie A Carman
The serine/threonine kinase IL-1R-associated kinase (IRAK)4 is a critical regulator of innate immunity. We have identified BMS-986126, a potent, highly selective inhibitor of IRAK4 kinase activity that demonstrates equipotent activity against multiple MyD88-dependent responses both in vitro and in vivo. BMS-986126 failed to inhibit assays downstream of MyD88-independent receptors, including the TNF receptor and TLR3. Very little activity was seen downstream of TLR4, which can also activate an MyD88-independent pathway...
December 21, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27995618/foxd3-suppresses-il-10-expression-in-b-cells
#15
Yu Zhang, Zhiding Wang, He Xiao, Xiaoling Liu, Gaizhi Zhu, Dandan Yu, Gencheng Han, Guojiang Chen, Chunmei Hou, Ning Ma, Beifen Shen, Yan Li, Tianxiao Wang, Renxi Wang
IL-10(+) regulatory B cells (Bregs) play an important role in restraining excessive inflammatory responses by secreting IL-10. However, it is still unclear what key transcription factors determines Breg differentiation. Thus, we explore what transcription factor plays a key role in the expression of IL-10, a pivotal cytokine in Bregs. We used two kinds of web-based prediction software to predict transcription factors binding the IL-10 promoter and found that IL-10 promoter had many binding sites for Foxd3. Chip-PCR assay demonstrated that Foxd3 directly binds the predicted binding sites around the start codon upstream by -1400 bp...
December 20, 2016: Immunology
https://www.readbyqxmd.com/read/27989697/developmental-benzo-a-pyrene-b-a-p-exposure-impacts-larval-behavior-and-impairs-adult-learning-in-zebrafish
#16
Andrea L Knecht, Lisa Truong, Michael T Simonich, Robert L Tanguay
Polycyclic aromatic hydrocarbons (PAHs) are produced from incomplete combustion of organic materials or fossil fuels, and are present in crude oil and coal; therefore, they are ubiquitous environmental contaminants present in urban air, dust, soil, and water. It is widely recognized that PAHs pose risks to human health, especially for the developing fetus and infant where PAH exposures have been linked to in-utero mortality, cardiovascular effects, and lower intelligence. Using the zebrafish model, we evaluated the developmental toxicity of benzo[a]pyrene (B[a]P)...
January 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/27942548/effect-of-self-etch-adhesives-on-self-sealing-ability-of-high-copper-amalgams
#17
Saied Mostafa Moazzami, Horieh Moosavi, Maryam Moddaber, Reza Parvizi, Mohamad Hadi Moayed, Nima Mokhber, Michael Meharry, Reza B Kazemi
STATEMENT OF THE PROBLEM: Similar to conventional amalgam, high-copper amalgam alloy may also undergo corrosion, but it takes longer time for the resulting products to reduce microleakage by sealing the micro-gap at the tooth/amalgam interface. PURPOSE: The aim of this study was to evaluate the effect of self-etch adhesives with different pH levels on the interfacial corrosion behavior of high-copper amalgam restoration and its induction potential for self-sealing ability of the micro-gap in the early hours after setting by means of Electro-Chemical Tests (ECTs)...
December 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27941837/nuclear-factor-erythroid-2-related-factor-2-deficiency-exacerbates-lupus-nephritis-in-b6-lpr-mice-by-regulating-th17-cell-function
#18
Mei Zhao, Huanpeng Chen, Qingfeng Ding, Xiaoxie Xu, Bolan Yu, Zhaofeng Huang
Lupus nephritis (LN) is the major clinical manifestation of systemic lupus erythematosus. LN is promoted by T helper 17 (Th17) cells, which are the major pro-inflammatory T cell subset contributing to autoimmunity regulation. Nuclear factor erythroid 2-related factor 2 (NRF2) is critical for suppressing reactive oxygen species (ROS) and relieving oxidant stress by regulating antioxidant gene expression. Previous studies have demonstrated that Nrf2 deficiency promotes drug-induced or spontaneous LN. However, whether NRF2 regulates Th17 function during LN development is still unclear...
December 12, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27940897/corrigendum-to-abnormal-thymic-maturation-and-lymphoproliferation-in-mrl-faslpr-lpr-mice-can-be-partially-reversed-by-synthetic-oligonucleotides-implications-for-systemic-lupus-erythematosus-and-autoimmune-lymphoproliferative-syndrome
#19
https://www.readbyqxmd.com/read/27930566/risk-factors-and-outcomes-of-high-peritonitis-rate-in-continuous-ambulatory-peritoneal-dialysis-patients-a-retrospective-study
#20
Yuanshi Tian, Xishao Xie, Shilong Xiang, Xin Yang, Xiaohui Zhang, Zhangfei Shou, Jianghua Chen
Peritonitis remains a major complication of peritoneal dialysis (PD). A high peritonitis rate (HPR) affects continuous ambulatory peritoneal dialysis (CAPD) patients' technique survival and mortality. Predictors and outcomes of HPR, rather than the first peritonitis episode, were rarely studied in the Chinese population. In this study, we examined the risk factors associated with HPR and its effects on clinical outcomes in CAPD patients.This is a single center, retrospective, observational cohort study. A total of 294 patients who developing at least 1 episode of peritonitis were followed up from March 1st, 2002, to July 31, 2014, in our PD center...
December 2016: Medicine (Baltimore)
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