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Frontiers in Pharmacology

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https://www.readbyqxmd.com/read/28239353/transient-receptor-potential-ankyrin-1-channel-expression-on-peripheral-blood-leukocytes-from-rheumatoid-arthritic-patients-and-correlation-with-pain-and-disability
#1
Ione Pereira, Saulo J F Mendes, Domingos M S Pereira, Thayanne F Muniz, Valderlane L P Colares, Cinara R A V Monteiro, Mahiba M R de S Martins, Marcos A G Grisotto, Valério Monteiro-Neto, Sílvio G Monteiro, João B Calixto, Susan D Brain, Elizabeth S Fernandes
Patients with rheumatoid arthritis (RA) suffer from pain and joint disability. The transient receptor potential ankyrin 1 (TRPA1) channel expressed on sensory neurones and non-neuronal cells mediates pain transduction and inflammation and it has been implicated in RA. However, there is little information on the contribution of TRPA1 for human disease. Here, we investigated the expression of TRPA1 on peripheral blood leukocytes and the circulating levels of its endogenous activators 4-hydroxynonenal (4-HNE) and hydrogen peroxide (H2O2) in RA patients treated or not with the anti-rheumatic leflunomide (LFN) or the anti-TNFα adalimumab (ADA)...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28239352/celastrol-attenuates-multiple-sclerosis-and-optic-neuritis-in-an-experimental-autoimmune-encephalomyelitis-model
#2
Hongbin Yang, Chang Liu, Jie Jiang, Yuena Wang, Xiaoyu Zhang
This study was aimed to evaluate the effects of celastrol, a natural compound with multiple bioactivities, on multiple sclerosis and optic neuritis (ON) in rat experimental autoimmune encephalomyelitis (EAE). EAE was induced in Sprague Dawley rats using myelin basic protein, and the animals received daily intraperitoneal injections of celastrol or vehicle for 13 days. The EAE rats showed abnormal neurobehavior and inflammatory infiltration and demyelination in the spinal cord. Significantly upregulated mRNA expression of pro-inflammatory cytokines interferon-γ and interleukin-17 and downregulated anti-inflammatory cytokines interleukin-4 were found in the spinal cord of EAE rats...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28239351/reported-adverse-drug-reactions-in-infants-a-nationwide-analysis-in-malaysia
#3
Rosliana Rosli, Ahmad Fauzi Dali, Noorizan Abd Aziz, Long Chiau Ming, Mohamed Mansor Manan
Spontaneous adverse drug reactions (ADRs) reporting is a useful source of drug safety information in infants as only adult patients are routinely tested in clinical trials. This study was aimed to evaluate the spontaneously reported ADRs using WHO Adverse Reaction Terminology and to identify the common drugs associated with ADRs in children under 2 years of age. A retrospective analysis of ADR data for children below 2 years old from 2000 to 2013 was conducted using the data extracted from Malaysia's national pharmacovigilance database, QUEST2 System...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28232802/n-butylphthalide-improves-cognitive-function-in-rats-after-carbon-monoxide-poisoning
#4
Ming-Jun Bi, Xian-Ni Sun, Yong Zou, Xiao-Yu Ding, Bin Liu, Yue-Heng Zhang, Da-Dong Guo, Qin Li
Cognitive impairment is the most common neurologic sequelae after carbon monoxide (CO) poisoning, and the previous investigations have demonstrated that N-Butylphthalide (NBP) could exert a broad spectrum of neuroprotective properties. The current study aimed to investigate the effect of NBP on cognitive dysfunction in rats after acute severe CO poisoning. Rats were randomly divided into a normal control group, a CO poisoning group and a CO+NBP group. The animal model of CO poisoning was established by exposure to CO in a chamber, and then all rats received hyperbaric oxygen therapy once daily, while rats in CO+NBP group were administered orally NBP (6 mg/ 100g) by gavage twice a day additionally...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28232801/nicotine-elicits-convulsive-seizures-by-activating-amygdalar-neurons
#5
Higor A Iha, Naofumi Kunisawa, Saki Shimizu, Kentaro Tokudome, Takahiro Mukai, Masato Kinboshi, Akio Ikeda, Hidefumi Ito, Tadao Serikawa, Yukihiro Ohno
Nicotinic acetylcholine (nACh) receptors are implicated in the pathogenesis of epileptic disorders; however, the mechanisms of nACh receptors in seizure generation remain unknown. Here, we performed behavioral and immunohistochemical studies in mice and rats to clarify the mechanisms underlying nicotine-induced seizures. Treatment of animals with nicotine (1-4 mg/kg, i.p.) produced motor excitement in a dose-dependent manner and elicited convulsive seizures at 3 and 4 mg/kg. The nicotine-induced seizures were abolished by a subtype non-selective nACh antagonist, mecamylamine (MEC)...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28232800/circulating-ecv-associated-mirnas-as-potential-clinical-biomarkers-in-early-stage-hbv-and-hcv-induced-liver-fibrosis
#6
Joeri Lambrecht, Pieter Jan Poortmans, Stefaan Verhulst, Hendrik Reynaert, Inge Mannaerts, Leo A van Grunsven
Introduction: Chronic hepatitis B (HBV) and C (HCV) virus infection is associated with the activation of hepatic stellate cells (HSCs) toward a myofibroblastic phenotype, resulting in excessive deposition of extracellular matrix, the development of liver fibrosis, and its progression toward cirrhosis. The gold standard for the detection and staging of liver fibrosis remains the liver biopsy, which is, however, associated with some mild and severe drawbacks. Other non-invasive techniques evade these drawbacks, but lack inter-stage specificity and are unable to detect early stages of fibrosis...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28232799/satisfaction-with-health-services-among-the-citizens-of-serbia
#7
Natasa M Mihailovic, Sanja S Kocic, Goran Trajkovic, Mihajlo Jakovljevic
No abstract text is available yet for this article.
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28228727/post-operative-bleeding-risk-in-dental-surgery-for-patients-on-oral-anticoagulant-therapy-a-meta-analysis-of-observational-studies
#8
Quan Shi, Juan Xu, Tong Zhang, Bin Zhang, Hongchen Liu
Background and Objective: Minor dental surgery is invasive and hemorrhagic. Thus, in patients treated with anticoagulants, the bleeding risk related to these invasive procedures is concerning. The aim of this meta-analysis is to evaluate this risk by comparing the post-operative bleeding rates of oral anticoagulation treatment (OAT) patients (without interrupted or altered anticoagulant intake) with non-OAT patients. Methods: PubMed, Embase and the Cochrane Library were searched for eligible studies that compared the post-operative (following minor dental surgery) bleeding rates of OAT patients without interrupted or altered therapy with those of non-OAT patients...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28228726/current-diagnosis-and-management-of-immune-related-adverse-events-iraes-induced-by-immune-checkpoint-inhibitor-therapy
#9
REVIEW
Vivek Kumar, Neha Chaudhary, Mohit Garg, Charalampos S Floudas, Parita Soni, Abhinav B Chandra
The indications of immune checkpoint inhibitors (ICIs) are set to rise further with the approval of newer agents like tremelimumab and atezolimumab for use in patients with advanced stage mesothelioma and urothelial carcinoma respectively. More frequent use of ICIs has improved our understanding of their unique side effects, which are known as immune-related adverse events (irAEs). The spectrum of irAEs has expanded beyond more common manifestations such as dermatological, gastrointestinal and endocrine effects to rarer presentations involving nervous, hematopoietic and urinary systems...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28228725/differential-effects-of-corm-2-and-corm-401-in-murine-intestinal-epithelial-mode-k-cells-under-oxidative-stress
#10
Dinesh Babu, Georges Leclercq, Roberto Motterlini, Romain A Lefebvre
Carbon monoxide (CO)-releasing molecules (CO-RMs) are intensively studied to provide cytoprotective and anti-inflammatory effects of CO in inflammatory conditions including intestinal inflammation. The water-soluble CORM-A1 reduced apoptosis and NADPH oxidase (NOX)-derived reactive oxygen species (ROS) induced by tumor necrosis factor (TNF)-α/cycloheximide (CHX) in mouse MODE-K intestinal epithelial cells (IECs), without influencing TNF-α/CHX-induced mitochondrial superoxide anion ([Formula: see text]). The aim of the present study in the same model was to comparatively investigate the influence of lipid-soluble CORM-2 and water-soluble CORM-401, shown in vitro to release more CO under oxidative conditions...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28228724/drug-utilization-on-neonatal-wards-a-systematic-review-of-observational-studies
#11
Rosliana Rosli, Ahmad Fauzi Dali, Noorizan Abd Aziz, Amir Heberd Abdullah, Long Chiau Ming, Mohamed Mansor Manan
Despite limited evidence on safety and efficacy of drug use in neonates, drugs are extensively used in this age group. However, the availability of information on drug consumption in neonates, especially inpatient neonates, is limited. This paper systematically reviews published studies on drug utilization in hospitalized neonates. A systematic literature review was carried out to identify observational studies published from inception of databases used till August 2016. Four search engines, namely Medline, CINAHL, Embase, and PubMed, were used...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28223936/two-pore-channels-catalyzers-of-endolysosomal-transport-and-function
#12
REVIEW
Christian Grimm, Cheng-Chang Chen, Christian Wahl-Schott, Martin Biel
Two-pore channels (TPCs) have recently emerged as a novel class of non-selective cation channels in the endolysosomal system. There are two members in the human genome, TPC1 and TPC2. Studies with TPC knockout and knockdown models have revealed that these channels participate in the regulation of multiple endolysosomal trafficking pathways which when dysregulated can lead to or influence the development of a range of different diseases such as lysosomal storage, metabolic, or infectious diseases. TPCs have been demonstrated to be activated by different endogenous stimuli, PI(3,5)P2 and NAADP, and ATP has been found to block TPC activation via mTOR...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28223935/morus-alba-leaf-lectin-mll-sensitizes-mcf-7-cells-to-anoikis-by-inhibiting-fibronectin-mediated-integrin-fak-signaling-through-ras-and-activation-of-p-38-mapk
#13
Jayaram Saranya, Ganesan Shilpa, Kozhiparambil G Raghu, Sulochana Priya
Lectins are a unique class of carbohydrate binding proteins/glycoproteins, and many of them possess anticancer properties. They can induce cell cycle arrest and apoptosis, inhibit protein synthesis, telomerase activity and angiogenesis in cancer cells. In the present study, we have demonstrated the effect of Morus alba leaf lectin (MLL) on anoikis induction in MCF-7 cells. Anoikis induction in cancer cells has a significant role in preventing early stage metastasis. MLL treatment in monolayers of MCF-7 cells caused significant detachment of cells in a time and concentration dependent manner...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28220074/involvement-of-cannabinoid-signaling-in-vincristine-induced-gastrointestinal-dysmotility-in-the-rat
#14
Gema Vera, Ana E López-Pérez, José A Uranga, Rocío Girón, Ma Isabel Martín-Fontelles, Raquel Abalo
Background: In different models of paralytic ileus, cannabinoid receptors are overexpressed and endogenous cannabinoids are massively released, contributing to gastrointestinal dysmotility. The antitumoral drug vincristine depresses gastrointestinal motility and a similar mechanism could participate in this effect. Therefore, our aim was to determine, using CB1 and CB2 antagonists, whether an increased endocannabinoid tone is involved in vincristine-induced gastrointestinal ileus. Methods: First, we confirmed the effects of vincristine on the gut mucosa, by conventional histological techniques, and characterized its effects on motility, by radiographic means...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28220073/enhanced-late-na-and-ca-currents-as-effective-antiarrhythmic-drug-targets
#15
REVIEW
Hrayr S Karagueuzian, Arash Pezhouman, Marina Angelini, Riccardo Olcese
While recent advances clarified the molecular and cellular modes of action of antiarrhythmic drugs (AADs), their link to suppression of dynamical arrhythmia mechanisms remains only partially understood. The current classifications of AADs (Classes I, III, and IV) rely on blocking peak Na, K and L-type calcium currents (ICa,L), with Class II with dominant beta receptor blocking activity and Class V including drugs with diverse classes of actions. The discovery that the calcium and redox sensor, cardiac Ca/calmodulin-dependent protein kinase II (CaMKII) enhances both the late Na (INa-L) and the late ICa,L in patients at high risk of VT/VF provided a new and a rational AAD target...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28220072/commentary-do-health-care-workforce-population-and-service-provision-significantly-contribute-to-the-total-health-expenditure-an-econometric-analysis-of-serbia
#16
COMMENT
Mihajlo Jakovljevic, Mirjana Varjacic
No abstract text is available yet for this article.
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28217100/corrigendum-safety-profiles-of-tripterygium-wilfordii-hook-f-a-systematic-review-and-meta-analysis
#17
Chi Zhang, Ping-Ping Sun, Hong-Tao Guo, Yan Liu, Jian Li, Xiao-Juan He, Ai-Ping Lu
[This corrects the article on p. 402 in vol. 7, PMID: 27877128.].
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28217099/berberine-attenuates-intestinal-mucosal-barrier-dysfunction-in-type-2-diabetic-rats
#18
Jing Gong, Meilin Hu, Zhaoyi Huang, Ke Fang, Dingkun Wang, Qingjie Chen, Jingbin Li, Desen Yang, Xin Zou, Lijun Xu, Kaifu Wang, Hui Dong, Fuer Lu
Background: Intestinal mucosal barrier dysfunction plays an important role in the development of diabetes mellitus (DM). Berberine (BBR), a kind of isoquinoline alkaloid, is widely known to be effective for both DM and diarrhea. Here, we explored whether the anti-diabetic effect of BBR was related to the intestine mucosal barrier. Methods and Results: The rat model of T2DM was established by high glucose and fat diet feeding and intravenous injection of streptozocin. Then, those diabetic rats were treated with BBR at different concentrations for 9 weeks...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28217098/quercetin-inhibits-lps-induced-inflammation-and-ox-ldl-induced-lipid-deposition
#19
Feng Xue, Xiaobo Nie, Jianping Shi, Qingxue Liu, Ziwei Wang, Xiting Li, Jinqiu Zhou, Jia Su, Mingming Xue, Wei-Dong Chen, Yan-Dong Wang
Aberrant activation of inflammation and excess accumulation of lipids play crucial role in the occurrence and progression of atherosclerosis (AS). Quercetin (QCT) has been tested effectively to cure AS. It is widely distributed in plant foods and has been proved to have potential antioxidative and anticancer activities. However, the underlying molecular mechanisms of OCT in AS are not completely understood. In the present study, we stimulated murine RAW264.7 cells with lipopolysaccharide (LPS) or oxidized low-density lipoproteins (ox-LDL) to mimic the development of AS...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28217097/feedback-activation-of-basic-fibroblast-growth-factor-signaling-via-the-wnt-%C3%AE-catenin-pathway-in-skin-fibroblasts
#20
Xu Wang, Yuting Zhu, Congcong Sun, Tao Wang, Yingjie Shen, Wanhui Cai, Jia Sun, Lisha Chi, Haijun Wang, Na Song, Chao Niu, Jiayi Shen, Weitao Cong, Zhongxin Zhu, Yuanhu Xuan, Xiaokun Li, Litai Jin
Skin wound healing is a complex process requiring the coordinated behavior of many cell types, especially in the proliferation and migration of fibroblasts. Basic fibroblast growth factor (bFGF) is a member of the FGF family that promotes fibroblast migration, but the underlying molecular mechanism remains elusive. The present RNA sequencing study showed that the expression levels of several canonical Wnt pathway genes, including Wnt2b, Wnt3, Wnt11, T-cell factor 7 (TCF7), and Frizzled 8 (FZD8) were modified by bFGF stimulation in fibroblasts...
2017: Frontiers in Pharmacology
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