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https://www.readbyqxmd.com/read/29454156/the-glun2b-subunit-represents-a-major-functional-determinant-of-nmda-receptors-in-human-induced-pluripotent-stem-cell-derived-cortical-neurons
#1
Ioana Neagoe, Chang Liu, Alexander Stumpf, Yanmei Lu, Dongping He, Ross Francis, Jun Chen, Paul Reynen, Moulay Hicham Alaoui-Ismaili, Hirokazu Fukui
Abnormal signaling pathways mediated by N-methyl-d-aspartate receptors (NMDARs) have been implicated in the pathogenesis of various CNS disorders and have been long considered as promising points of therapeutic intervention. However, few efforts have been previously described concerning evaluation of therapeutic modulators of NMDARs and their downstream pathways in human neurons with endogenous expression of NMDARs. In the present study, we assessed expression, functionality, and subunit composition of endogenous NMDARs in human induced pluripotent stem cell (hiPSC)-derived cortical neurons (iCell Neurons and iCell GlutaNeurons)...
February 8, 2018: Stem Cell Research
https://www.readbyqxmd.com/read/29454152/the-influence-of-biogenic-amines-on-th17-mediated-immune-response-in-multiple-sclerosis
#2
REVIEW
Mikhail Melnikov, Vladimir Rogovskii, Alexey Boyko, Mikhail Pashenkov
Biogenic amines are direct mediators of interactions between immune and nervous systems implicated in the pathogenesis of multiple sclerosis (MS). Recently, great attention has been drawn to studying the effects of biogenic amines on Th17-cells, which play one of the central roles in the development of inflammatory lesions in MS. Results of these studies suggest that, depending on the activation of particular receptors, biogenic amines can both enhance and inhibit Th17-cell functions. Based on these data, targeting biogenic amines and their receptors could be explored as a new kind of additional disease-modifying treatment of MS...
February 12, 2018: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29454117/the-differentially-expressed-genes-of-human-sporadic-cerebral-cavernous-malformations
#3
Xiangjiang Lin, Guolu Meng, Xing Liu, Tengfei Yu, Chuanfeng Bai, Xiaobin Fei, Shengze Deng, Jizong Zhao, Shulin Ren, Junting Zhang, Zhen Wu, Shuo Wang, Jianguo Zhang, Liwei Zhang
OBJECTIVES: To understand the development of Sporadic cerebral cavernous malformations (SCCM) comprehensively, we analyzed gene expression profiles in SCCMs by the gene microarray. METHODS: The total number of the specimens collected in our study was 14, 7 of which were SCCMs, and the others were controls that were obtained from normal brain vessels. The total RNA was extracted and hybridized with Oligonucleotide array containing 21522 genes. The analysis of Gene Ontology (GO) items and molecular pathways was performed based on the GO and Kyoto Encyclopedia of Genes and Genomes (KEGG) databases...
February 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29454096/jak-stat-inhibitors-and-other-small-molecule-cytokine-antagonists-for-the-treatment-of-allergic-disease
#4
REVIEW
Michael D Howell, Carolyn Fitzsimons, Paul Smith
OBJECTIVE: To provide an overview of janus kinase (JAK), chemoattractant receptor-homologous molecule expressed on T-helper 2 cells (CRTH2), and phosphodiesterase 4 (PDE4) inhibitors in allergic disorders. DATA SOURCES: PubMed literature review. STUDY SELECTIONS: Articles included in this review discuss the emerging mechanism of action of small molecule inhibitors and their utilization in atopic dermatitis (AD), asthma, and allergic rhinitis (AR)...
February 14, 2018: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/29454070/association-of-polymorphic-variants-of-il-1%C3%AE-and-il-1rn-genes-in-the-development-of-graves-disease-in-kashmiri-population-north-india
#5
Faheem Shehjar, Dil Afroze, Raiz A Misgar, Sajad A Malik, Bashir A Laway
PURPOSE: Graves' disease (GD) is a multigenic, organ specific autoimmune disorder with a strong genetic predisposition and IL-1β has been shown to be involved in its pathogenesis. The present study was aimed to determine the genetic associations between polymorphisms of IL-1β gene promoter region (-511T>C) (rs16944), exon 5 (+3954C>T) (rs1143634) and IL-1RN gene VNTR (rs2234663) polymorphism in patients with GD in ethnic Kashmiri population. METHODS: A total of 135 Graves' disease patients and 150 healthy individuals were included in the study...
February 14, 2018: Human Immunology
https://www.readbyqxmd.com/read/29454004/identification-and-analysis-of-peanut-specific-t-effector-and-t-regulatory-cells-in-children-allergic-and-tolerant-to-peanut
#6
Katherine A Weissler, Marjohn Rasooly, Tom DiMaggio, Hyejeong Bolan, Daly Cantave, David Martino, Melanie R Neeland, Mimi Lk Tang, Thanh D Dang, Katrina J Allen, Pamela A Frischmeyer-Guerrerio
BACKGROUND: Peanut allergy is potentially life-threatening and generally persists lifelong. Recent data suggests the skin may be an important route of initial sensitization to peanut, while early oral exposure to peanut is protective. In mice, T regulatory cells (Tregs) are central to development of tolerance to food, but their contribution to the pathogenesis of food allergy in humans is less clear. OBJECTIVE: We sought to quantify and phenotype peanut-specific CD4+ T effector (ps-Teff) and ps-Tregs in children with and without peanut allergy or sensitization...
February 14, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29453990/atp-activated-p2x7-receptor-in-the-pathophysiology-of-mood-disorders-and-as-an-emerging-target-for-the-development-of-novel-antidepressant-therapeutics
#7
REVIEW
Linyu Wei, Sharifah A Syed Mortadza, Jing Yan, Libin Zhang, Lu Wang, Yaling Yin, Chaokun Li, Sylvie Chalon, Patrick Emond, Catherine Belzung, Dongliang Li, Chengbiao Lu, Sebastien Roger, Lin-Hua Jiang
Mood disorders are a group of psychiatric conditions that represent leading global disease burdens. Increasing evidence from clinical and preclinical studies supports that innate immune system dysfunction plays an important part in the pathophysiology of mood disorders. P2X7 receptor, belonging to the ligand-gated ion channel P2X subfamily of purinergic P2 receptors for extracellular ATP, is highly expressed in immune cells including microglia in the central nervous system (CNS) and has a vital role in mediating innate immune response...
February 14, 2018: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/29453960/synaptic-dysfunction-and-altered-excitability-in-c9orf72-als-ftd
#8
Alexander Starr, Rita Sattler
Amyotrophic lateral sclerosis (ALS) is characterized by a progressive degeneration of upper and lower motor neurons, resulting in fatal paralysis due to denervation of the muscle. Due to genetic, pathological and symptomatic overlap, ALS is now considered a spectrum disease together with frontotemporal dementia (FTD), the second most common cause of dementia in individuals under the age of 65. Interestingly, in both diseases, there is a large prevalence of RNA binding proteins (RBPs) that are mutated and considered disease-causing, or whose dysfunction contribute to disease pathogenesis...
February 14, 2018: Brain Research
https://www.readbyqxmd.com/read/29453928/cd4-cd25-cd127low-foxp3-regulatory-t-cells-in-crohn-s-disease
#9
Ali Khalili, Soheil Ebrahimpour, Iradj Maleki, Saeid Abediankenari, Mousa Mohammadnia Afrouzi
BACKGROUND: Regulatory T (Treg) cell play a key role in autoimmune diseases. We evaluated the regulatory function and frequency of Treg cells and secreted IL-10, IL-35 concentration in Crohn's disease (CD). METHODS: Twenty-three patients with CD and 25 healthy controls (HC) were included in this study. We analysed the alteration of Tregs frequency using flow cytometry for CD4, CD25, CD127 and FoxP3 markers. Surface expression of CD4, CD25 and CD127 markers were used for isolation of a relatively pure Treg cells...
February 16, 2018: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/29453907/editorial-multiple-sclerosis-pathogenesis-and-therapeutics
#10
EDITORIAL
Maria Katsara, Vasso Apostolopoulos
No abstract text is available yet for this article.
February 6, 2018: Medicinal Chemistry
https://www.readbyqxmd.com/read/29453876/prognostic-importance-of-fgf2-and-fgfr1-expression-for-patients-affected-by-ameloblastoma
#11
Felipe Paiva Fonseca, Bernar Monteiro Benites, Ciro Dantas Soares, Thayná Melo de Lima Morais, Gleyson Kleber do Amaral-Silva, Oslei Paes de Almeida, Fernando Augusto Soares, Eduardo Rodrigues Fregnani
BACKGROUND: Fibroblast growth factor 2 (FGF2) and FGF receptor 1 (FGFR1) have been investigated in different human neoplasms and were shown to play important roles in the pathogenesis of these diseases; however, very few is known regarding their prognostic importance in the context of ameloblastoma. Therefore, the aim of this study is to investigate if the expression of FGF2 and FGFR1 is associated with ameloblastoma clinical behavior. METHODS: Fifty-eight cases of ameloblastoma arranged in tissue microarray were submitted to immunohistochemistry against FGF2 and FGFR1...
February 17, 2018: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29453848/postoperative-recurrence-of-crohn-s-disease-pathophysiology-diagnosis-and-treatment
#12
Antonio Di Sario, Paola Sassaroli, Luigi Daretti, Giulia Annulli, Laura Schiada, Giorgia Falcioni, Emanuele Bendia, Simone Antuono, Antonio Benedetti
BACKGROUND: Up to 80% of Crohn`s disease (CD) patients require at least one surgical intervention in their lifetime and up to 70% of these patients develop postoperative endoscopic recurrence within 1 year. The most important predictors of early postoperative recurrence are represented by smoking, prior intestinal surgery, penetrating disease and perianal location. Genetic factors, gut microbiota structure and immunological alterations may be involved in the pathogenesis of postoperative recurrence of CD, although their specific roles have to be determined yet...
February 16, 2018: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/29453761/expression-level-of-mir-34a-in-tumor-tissue-from-patients-with-esophageal-squamous-cell-carcinoma
#13
Milad Asadi, Dariush Shanehbandi, Hanieh Mohammadpour, Shahriyar Hashemzadeh, Bita Sepehri
BACKGROUND: miR-34a has been shown to be involved in P53 regulation. In this study, we aimed to evaluate the expression level of miR-34a in esophageal cancer and compare it with that of the normal marginal tissues. METHODS: Tumor and marginal tissues were obtained from 50 patients with esophageal cancer. After RNA extraction, expression level of miR-34a was determined using SYBR green master mix and real-time quantitative PCR. RESULTS: It was observed that there was a downregulation of miR-34a in tumoral tissue of esophageal patients in comparison to normal marginal tissues...
February 17, 2018: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/29453746/effect-of-aerobic-exercise-on-treg-and-th17-of-rats-with-ischemic-cardiomyopathy
#14
Zhisong Chen, Wenwen Yan, Yu Mao, Yi Ni, Lin Zhou, Haoming Song, Wenjun Xu, Leming Wang, Yuqin Shen
Immune activation and inflammation participate in the progression of chronic heart failure (CHF). Th17 cells and CD4+CD25+ regulatory T (Treg) cells both come from naive Th cells and share reciprocal development pathways but exhibit opposite effects. We hypothesized that the Th17/Treg balance was impaired in patients with CHF, and exercise can improve it. Rats with ischemic cardiomyopathy were prepared by ligaturing the left anterior descending branch of the left coronary artery. Rats in training group were trained with treadmill; Th17 cells increased significantly while Treg cells significantly decreased in s by flow cytometry, and the peripheral blood level of IL-6, IL-17, and TNF-α was obviously elevated by ELISA assay...
February 16, 2018: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/29453497/bone-mineralization-and-vascularization-in-bisphosphonate-related-osteonecrosis-of-the-jaw-an-experimental-study-in-the-rat
#15
Jean-Daniel Kün-Darbois, Hélène Libouban, Guillaume Mabilleau, Florence Pascaretti-Grizon, Daniel Chappard
OBJECTIVES: Pathogenesis of bisphosphonate-related osteonecrosis of the jaws (BRONJ) is not fully explained. An antiangiogenic effect of bisphosphonates (BPs) or an altered bone quality have been advocated. The aims of the present study were to analyze alveolar mandibular vascularization and bone quality in rats with BRONJ. MATERIALS AND METHODS: Thirty-eight Sprague-Dawley rats were randomized into two groups: zoledronic acid (ZA), n = 27, and control (CTRL) n = 11...
February 16, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29453493/altered-prepulse-inhibition-of-the-acoustic-startle-response-in-bdnf-deficient-mice-in-a-model-of-early-postnatal-hypoxia-implications-for-schizophrenia
#16
Juan M Lima-Ojeda, Anne S Mallien, Christiane Brandwein, Undine E Lang, Dimitri Hefter, Dragos Inta
The brain-derived neurotrophic factor (BDNF) is a major proliferative agent in the nervous system. Both BDNF-deficiency and perinatal hypoxia represent genetic/environmental risk factors for schizophrenia. Moreover, a decreased BDNF response to birth hypoxia was associated with the disease. BDNF expression is influenced by neuronal activity and environmental conditions such as hypoxia. Thus, it may partake in neuroprotective and reparative mechanisms in acute or chronic neuronal insults. However, the interaction of hypoxia and BDNF is insufficiently understood and the behavioral outcome unknown...
February 16, 2018: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/29453348/abcg2-contributes-to-the-development-of-gout-and-hyperuricemia-in-a-genome-wide-association-study
#17
Chung-Jen Chen, Chia-Chun Tseng, Jeng-Hsien Yen, Jan-Gowth Chang, Wen-Cheng Chou, Hou-Wei Chu, Shun-Jen Chang, Wei-Ting Liao
Although many genome-wide association studies (GWASs) of hyperuricemia or gout have been reported, the related genetic factors and the mechanisms from hyperuricemia to gouty attack remain unclear. This study aimed to identify genetic factors and pathogenesis of gout from hyperuricemia by genome-wide association study (GWAS). 747 gout patients, 747 hyperuricemia and 2071 age-matched controls were recruited and analyzed with Affymetrix 650 K chip to find the related genetic variants. The functions of the related genes were investigated in an endothelial cell (EC) with urate crystal stimulation...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29453339/a-role-for-tau-in-learning-memory-and-synaptic-plasticity
#18
Fabrizio Biundo, Dolores Del Prete, Hong Zhang, Ottavio Arancio, Luciano D'Adamio
Tau plays a pivotal role in the pathogenesis of neurodegenerative disorders: mutations in the gene encoding for tau (MAPT) are linked to Fronto-temporal Dementia (FTD) and hyper-phosphorylated aggregates of tau forming neurofibrillary tangles (NFTs) that constitute a pathological hallmark of Alzheimer disease (AD) and FTD. Accordingly, tau is a favored therapeutic target for the treatment of these diseases. Given the criticality of tau to dementia's pathogenesis and therapy, it is important to understand the physiological function of tau in the central nervous system...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29453337/p66shc-signaling-mediates-diabetes-related-cognitive-decline
#19
Yohei Minami, Noriyuki Sonoda, Eiichi Hayashida, Hiroaki Makimura, Makoto Ide, Noriko Ikeda, Masahiro Ohgidani, Takahiro A Kato, Yoshihiro Seki, Yasutaka Maeda, Shigenobu Kanba, Ryoichi Takayanagi, Yoshihiro Ogawa, Toyoshi Inoguchi
Accumlating evidence have suggested that diabetes mellitus links dementia, notably of Alzheimer's disease (AD). However, the underlying mechanism remains unclear. Several studies have shown oxidative stress (OS) to be one of the major factors in the pathogenesis of diabetic complications. Here we show OS involvement in brain damage in a diabetic animal model that is at least partially mediated through an AD-pathology-independent mechanism apart from amyloid-β accumulation. We investigated the contribution of the p66Shc signaling pathway to diabetes-related cognitive decline using p66Shc knockout (-/-) mice...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29453280/elevated-expression-of-il-33-and-tslp-in-the-airways-of-human-asthmatics-in-vivo-a-potential-biomarker-of-severe-refractory-disease
#20
Yan Li, Wei Wang, Zhe Lv, Yun Li, Yan Chen, Kewu Huang, Chris J Corrigan, Sun Ying
The epithelial cytokines IL-33, thymic stromal lymphopoietin (TSLP), and IL-25 have been implicated in asthma pathogenesis because they promote Th2-type cytokine synthesis, but their expression is relatively poorly documented in "real-life" human asthma. Using bronchoalveolar lavage fluid (BALF), we measured airway concentrations of these mediators and compared them with those of Th1- and Th2-type cytokines, airway infiltration of neutrophils and eosinophils, and lung function in a large group of asthmatic patients with a range of disease severity ( n = 70) and control subjects ( n = 30)...
February 16, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
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