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https://www.readbyqxmd.com/read/29656207/dihydromyricetin-relieves-rheumatoid-arthritis-symptoms-and-suppresses-expression-of-pro-inflammatory-cytokines-via-the-activation-of-nrf2-pathway-in-rheumatoid-arthritis-model
#1
Jianguo Chu, Xiujun Wang, Huanjie Bi, Lifeng Li, Mingguang Ren, Jingwei Wang
Rheumatoid arthritis (RA) is a systemic inflammatory and autoimmune disease. In this research, we estimated the protective effects of Dihydromyricetin (DMY) on RA induced by Complete Freund's Adjuvant (CFA). We found that DMY effectively relieved rheumatoid arthritis symptoms, such as body weight change, paw swelling and rheumatoid arthritis scores. In addition, we also observed that DMY significantly lowered the immune organ indexes (including thymus and spleen) and exhibited the anti-inflammatory effect in CFA-induced rheumatoid arthritis...
April 12, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29656184/ropivacaine-regulates-the-expression-and-function-of-heme-oxygenase-1
#2
Xiangbiao Yan, Yu Li, Xuechang Han, Xu Dong, Yajie Zhang, Qunzhi Xing
As a new generation of amide-type local anesthetics (LAs), ropivacaine has been widely used for pain management in clinical settings. Increasing evidence has shown that administration of ropivacaine causes cytotoxic effects and apoptosis. However, the underlying molecular mechanisms still need to be elucidated. In the current study, our results indicated that ropivacaine treatment caused a significant induction of heme oxygenase-1 (HO-1) at both the mRNA and protein levels in human SHSY5Y cells. Levels of HO-1 mRNA and protein peaked at 1 h and 18 h, respectively, in response to ropivacaine treatment...
April 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29655977/dexmedetomidine-or-fentanyl-cardiovascular-stability-and-analgesia-during-propofol-ketamine-total-intravenous-anaesthesia-in-experimental-pigs
#3
Andreas Lervik, Joanna Raszplewicz, Birgit Ranheim, Susanna Solbak, Simen F Toverud, Henning A Haga
OBJECTIVE: To compare cardiovascular function and response to nociception during total intravenous anaesthesia in pigs with propofol, ketamine and either dexmedetomidine or fentanyl administered as a continuous infusion. STUDY DESIGN: Blinded, randomized, balanced, crossover study ANIMALS: Eight immunocastrated male, mixed breed pigs with a mean ± standard deviation body weight of 26.4 ± 1.9 kg for dexmedetomidine and 27.5 ± 3.8 kg for fentanyl treatment...
December 5, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/29655943/effects-of-a-histamine-h-4-receptor-antagonist-on-cisplatin-induced-anorexia-in-mice
#4
Kouichi Yamamoto, Rikuya Okui, Atsushi Yamatodani
Cancer chemotherapy often induces gastrointestinal symptoms such as anorexia, nausea, and vomiting. Antiemetic agents are effective in inhibiting nausea and vomiting, but patients still experience anorexia. We previously reported that chemotherapeutic agent-induced anorexia is associated with an increase of inflammatory cytokines. Other studies also reported that antagonism of the histamine H4 receptor is anti-inflammatory. In this study, we investigated the involvement of the H4 receptor in the development of chemotherapy-induced anorexia in mice...
April 12, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29655790/hdac11-deletion-reduces-fructose-induced-cardiac-dyslipidemia-apoptosis-and-inflammation-by-attenuating-oxidative-stress-injury
#5
Xiao-Di Fan, Lan-Lan Wan, Man Duan, Shan Lu
Diabetes mellitus (DM) is a risk factor for abnormal heart development, but the molecular mechanism remains obscure. Histone deacetylase 11 (HDAC11), the most recently identified histone deacetylase, is the sole member of class IV HDACs. However, its role in diabetic cardiac injury is still poorly understood. In the present study, we attempted to explore the effects of HDAC11 on fructose (Fru)-induced cardiac injury using the wild type (HDAC11+/+ ) and knockout (HDAC11-/- ) mice. The results indicated that HDAC11 was significantly expressed in human and mouse diabetic heart failure (DHF) hearts...
April 12, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29653089/modification-of-levosimendan-induced-suppression-of-atrial-natriuretic-peptide-secretion-in-hypertrophied-rat-atria
#6
Lamei Yu, Kuichang Yuan, Byung Mun Park, Suhn Hee Kim
This study aimed to determine the effects of levosimendan, a calcium sensitizer, on atrial contractility and atrial natriuretic peptide (ANP) secretion and its modification in hypertrophied atria. Isolated perfused beating rat atria were used from control and isoproterenol-treated rats. Levosimendan and its metabolite OR-1896 caused a positive inotropic effect and suppressed ANP secretion in rat atria. Similar to levosimendan, the selective phosphodiesterase 3 (PDE3) or PDE4 inhibitor also suppressed ANP secretion...
April 10, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29652769/schizophrenia-and-criminal-responsibility-a-systematic-review
#7
Georgios Tsimploulis, Gérard Niveau, Ariel Eytan, Panteleimon Giannakopoulos, Othman Sentissi
The significant progress of psychiatry in the 20th century provided a sophisticated theoretical framework to analyze the complex relationships between crime and mental illness. Schizophrenia has been traditionally associated with severe cognitive and affective deficits that heavily influence empathy, judgment capacities, but also control of impulsiveness. Although there is an association between psychotic disorders and absence or decrease of legal responsibility, their relationship is also determined by sociodemographic, developmental, and clinical factors...
May 2018: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/29652260/the-crystal-structure-of-the-malic-enzyme-from-candidatus-phytoplasma-reveals-the-minimal-structural-determinants-for-a-malic-enzyme
#8
C E Alvarez, F Trajtenberg, N Larrieux, M Saigo, A Golic, C S Andreo, S A Hogenhout, M A Mussi, M F Drincovich, A Buschiazzo
Phytoplasmas are wall-less phytopathogenic bacteria that produce devastating effects in a wide variety of plants. Reductive evolution has shaped their genome, with the loss of many genes, limiting their metabolic capacities. Owing to the high concentration of C4 compounds in plants, and the presence of malic enzyme (ME) in all phytoplasma genomes so far sequenced, the oxidative decarboxylation of L-malate might represent an adaptation to generate energy. Aster yellows witches'-broom (Candidatus Phytoplasma) ME (AYWB-ME) is one of the smallest of all characterized MEs, yet retains full enzymatic activity...
April 1, 2018: Acta Crystallographica. Section D, Structural Biology
https://www.readbyqxmd.com/read/29651507/efficacy-and-side-effects-of-baclofen-and-the-novel-gaba-b-receptor-positive-allosteric-modulator-cmppe-in-animal-models-for-alcohol-and-cocaine-addiction
#9
Valentina Vengeliene, Tatiane T Takahashi, Olga A Dravolina, Irina Belozertseva, Edwin Zvartau, Anton Y Bespalov, Rainer Spanagel
RATIONALE: Preclinical studies suggest that the GABAB receptor is a potential target for treatment of substance use disorders. However, recent clinical trials report adverse effects in patients treated with the GABAB receptor agonist baclofen and even question efficacy. How can the discrepancy between preclinical and clinical findings be explained? OBJECTIVE: To test efficacy and adverse effects of baclofen and the novel GABAB positive allosteric modulator (PAM) CMPPE in rat addiction models, which were developed in accordance with DSM...
April 12, 2018: Psychopharmacology
https://www.readbyqxmd.com/read/29651246/lactone-component-from-ligusticum-chuanxiong-alleviates-myocardial-ischemia-injury-through-inhibiting-autophagy
#10
Gang Wang, Guoliang Dai, Jie Song, Maomao Zhu, Ying Liu, Xuefeng Hou, Zhongcheng Ke, Yuanli Zhou, Huihui Qiu, Fujing Wang, Nan Jiang, Xiaobin Jia, Liang Feng
The dysregulation of autophagy is associated with a series of cardiovascular diseases, such as myocardial ischemia injury. Lactone component from Ligusticum chuanxiong (LLC) is the major constituent of the traditional Chinese herb L. chuanxiong Hort., which has been reported to hold potential cardioprotective effects. In this study, to determine whether LLC protects the heart through regulation of autophagy, we explored the effects of LLC on cardioprotection and autophagy in myocardial ischemia injured rats and H9c2 cardiomyocytes...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29651107/circular-rna-circ-4099-is-induced-by-tnf-%C3%AE-and-regulates-ecm-synthesis-by-blocking-mir-616-5p-inhibition-of-sox9-in-intervertebral-disc-degeneration
#11
Hua Wang, Peiheng He, Hehai Pan, Jun Long, Jianru Wang, Zemin Li, Hui Liu, Weiying Jiang, Zhaomin Zheng
Circular RNAs (circRNAs) play important roles in the initiation and development of different diseases. Here, we detected their role in intervertebral disc (IVD) degeneration. An Arraystar human circular RNA microarray assay was used to detect circRNAs in normal and degenerated human IVD nucleus pulposus (NP) tissues. The role of circ-4099 in IVDD and its mechanism were evaluated by qRT-PCR and gain-of-function/loss-of-function studies. Interaction networks for competing endogenous RNAs (ceRNAs), miRNAs, and miRNA target gene were detected by bioinformatics analysis, RNA immunoprecipitation and luciferase assay...
April 13, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29651049/gabaergic-inhibition-in-dual-transmission-cholinergic-and-gabaergic-striatal-interneurons-is-abolished-in-parkinson-disease
#12
N Lozovaya, S Eftekhari, R Cloarec, L A Gouty-Colomer, A Dufour, B Riffault, M Billon-Grand, A Pons-Bennaceur, N Oumar, N Burnashev, Y Ben-Ari, C Hammond
We report that half striatal cholinergic interneurons are dual transmitter cholinergic and GABAergic interneurons (CGINs) expressing ChAT, GAD65, Lhx7, and Lhx6 mRNAs, labeled with GAD and VGAT, generating monosynaptic dual cholinergic/GABAergic currents and an inhibitory pause response. Dopamine deprivation increases CGINs ongoing activity and abolishes GABAergic inhibition including the cortico-striatal pause because of high [Cl- ]i levels. Dopamine deprivation also dramatically increases CGINs dendritic arbors and monosynaptic interconnections probability, suggesting the formation of a dense CGINs network...
April 12, 2018: Nature Communications
https://www.readbyqxmd.com/read/29651006/cyclin-dependent-kinase-5-mediates-pleiotrophin-induced-endothelial-cell-migration
#13
Evgenia Lampropoulou, Ioanna Logoviti, Marina Koutsioumpa, Maria Hatziapostolou, Christos Polytarchou, Spyros S Skandalis, Ulf Hellman, Manolis Fousteris, Sotirios Nikolaropoulos, Efrosini Choleva, Margarita Lamprou, Angeliki Skoura, Vasileios Megalooikonomou, Evangelia Papadimitriou
Pleiotrophin (PTN) stimulates endothelial cell migration through binding to receptor protein tyrosine phosphatase beta/zeta (RPTPβ/ζ) and αν β3 integrin. Screening for proteins that interact with RPTPβ/ζ and potentially regulate PTN signaling, through mass spectrometry analysis, identified cyclin-dependent kinase 5 (CDK5) activator p35 among the proteins displaying high sequence coverage. Interaction of p35 with the serine/threonine kinase CDK5 leads to CDK5 activation, known to be implicated in cell migration...
April 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29650996/embryonic-exposure-to-valproic-acid-impairs-social-predispositions-of-newly-hatched-chicks
#14
Paola Sgadò, Orsola Rosa-Salva, Elisabetta Versace, Giorgio Vallortigara
Biological predispositions to attend to visual cues, such as those associated with face-like stimuli or with biological motion, guide social behavior from the first moments of life and have been documented in human neonates, infant monkeys and domestic chicks. Impairments of social predispositions have been recently reported in neonates at high familial risk of Autism Spectrum Disorder (ASD). Using embryonic exposure to valproic acid (VPA), an anticonvulsant associated to increased risk of developing ASD, we modeled ASD behavioral deficits in domestic chicks...
April 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29650775/mechanotransduction-via-the-linc-complex-regulates-dna-replication-in-myonuclei
#15
Shuoshuo Wang, Elizabeth Stoops, Unnikannan Cp, Barak Markus, Adriana Reuveny, Elly Ordan, Talila Volk
Nuclear mechanotransduction has been implicated in the control of chromatin organization; however, its impact on functional contractile myofibers is unclear. We found that deleting components of the linker of nucleoskeleton and cytoskeleton (LINC) complex in Drosophila melanogaster larval muscles abolishes the controlled and synchronized DNA endoreplication, typical of nuclei across myofibers, resulting in increased and variable DNA content in myonuclei of individual myofibers. Moreover, perturbation of LINC-independent mechanical input after knockdown of β-Integrin in larval muscles similarly led to increased DNA content in myonuclei...
April 12, 2018: Journal of Cell Biology
https://www.readbyqxmd.com/read/29650693/high-mobility-group-box-1-from-hypoxic-trophoblasts-promotes-endothelial-microparticle-production-and-thrombophilia-in-preeclampsia
#16
Yae Hu, Ruhong Yan, Ce Zhang, Zhichao Zhou, Meng Liu, Can Wang, Hong Zhang, Liang Dong, Tiantian Zhou, Yi Wu, Ningzheng Dong, Qingyu Wu
OBJECTIVE: Thrombophilia is a major complication in preeclampsia, a disease associated with placental hypoxia and trophoblast inflammation. Preeclampsia women are known to have increased circulating microparticles that are procoagulant, but the underlying mechanisms remain unclear. In this study, we sought to understand the mechanism connecting placental hypoxia, circulating microparticles, and thrombophilia. APPROACH AND RESULTS: We analyzed protein markers on plasma microparticles from preeclampsia women and found that the increased circulating microparticles were mostly from endothelial cells...
April 12, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29650417/%C3%AE-aminoisobutyric-acid-accelerates-the-proliferation-and-differentiation-of-mc3t3-e1-cells-via-moderate-activation-of-ros-signaling
#17
Xiao-Wen Zhu, Kai Ding, Xiao-Yu Dai, Wei-Qi Ling
BACKGROUD: Osteoporosis is one of the bone-metabolic diseases associated with decreased bone renewal and bone mineral density. β-aminoisobutyric acid (BAIBA), a natural thymine catabolite, can reduce inflammation in skeletal muscle and alleviate hepatic endoplasmic reticulum stress. However, the roles of BAIBA in osteoblast proliferation and differentiation remain largely unknown. METHODS: The cultured MC3T3-E1 cells received various treatments in this study, including BAIBA alone, H2 O2 alone, BAIBA plus N-acetyl-l-cysteine and BAIBA plus apocynin...
April 9, 2018: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/29649522/triptolide-up-regulates-metabotropic-glutamate-receptor-5-to-inhibit-microglia-activation-in-the-lipopolysaccharide-induced-model-of-parkinson-s-disease
#18
Yi-Ying Huang, Qian Zhang, Jian-Nan Zhang, Ya-Nan Zhang, Li Gu, Hui-Min Yang, Ning Xia, Xiao-Min Wang, Hong Zhang
Metabotropic glutamate receptor (mGlu)5 regulates microglia activation, which contributes to inflammation. However, the role of mGlu5 in neuroinflammation associated with Parkinson's disease (PD) remains unclear. Triptolide (T10) exerts potent immunosuppressive and anti-inflammatory effects and protects neurons by inhibiting microglia activation. In this study, we investigated the role of mGlu5 in the anti-inflammatory effect of T10 in a lipopolysaccharide (LPS)-induced PD model. In cultured BV2 cells and primary microglia, blocking mGlu5 activity or knocking down its expression abolished T10-inhibited release of proinflammatory cytokines induced by LPS...
April 9, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29649428/connections-of-annexin-a1-and-translocator-protein-18-kda-on-toll-like-receptor-stimulated-bv-2-cells
#19
Lorena Pantaleão, Gustavo Henrique Oliveira da Rocha, Chris Reutelingsperger, Manoela Tiago, Silvya Stucchi Maria-Engler, Egle Solito, Sandra P Farsky
BACKGROUND: Annexin A1 (ANXA1) and Translocator Protein-18KDa (TSPO) down-regulate neuroinflammation. We investigated the role of recombinant ANXA1 (rANXA) on TSPO functions on Toll Like Receptor (TLR) activated microglia. METHODS: BV-2 cells (murine microglia), were stimulated by E. coli Lipopolysaccharide (LPS) and treated with rANXA1 in order to measure TSPO expression and inflammatory parameters. Anti-sense ANXA1 and TLR4 and TSPO shRNA, as well as pharmacological treatments, were employed to assess the mechanisms involved...
April 9, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29649283/design-and-preclinical-characterization-of-alxn1210-a-novel-anti-c5-antibody-with-extended-duration-of-action
#20
Douglas Sheridan, Zhao-Xue Yu, Yuchun Zhang, Rekha Patel, Fang Sun, Melissa A Lasaro, Keith Bouchard, Bruce Andrien, Andre Marozsan, Yi Wang, Paul Tamburini
Eculizumab, a monoclonal antibody (mAb) directed against complement protein C5, is considered to be the current standard of care for patients with paroxysmal nocturnal hemoglobinuria (PNH) and atypical hemolytic uremic syndrome. This study describes the generation and preclinical attributes of ALXN1210, a new long-acting anti-C5 mAb, obtained through select modifications to eculizumab to both largely abolish target-mediated drug disposition (TMDD) and increase recycling efficiency via the neonatal Fc receptor (FcRn)...
2018: PloS One
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