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https://www.readbyqxmd.com/read/29327730/eosinophil-derived-ccl-6-impairs-hematopoietic-stem-cell-homeostasis
#1
Chao Zhang, Weiwei Yi, Fei Li, Xufei Du, Hu Wang, Ping Wu, Chao Peng, Man Luo, Wen Hua, Catherine Cl Wong, James J Lee, Wen Li, Zhihua Chen, Songmin Ying, Zhenyu Ju, Huahao Shen
Eosinophils (Eos) have been long considered as end-stage effector cells in the hierarchical hematopoietic system. Numerous lines of evidence have suggested that Eos are multifunctional leukocytes with respect to the initiation, propagation and regulation of various inflammatory or immune reactions, especially in allergic diseases. Recent studies have shown that Eos are also required for maintenance of bone marrow plasma cells and differentiation of B cells. However, it remains unclear whether Eos contributes to regulation of hematopoietic stem cell (HSC) homeostasis...
January 12, 2018: Cell Research
https://www.readbyqxmd.com/read/29325278/-effect-of-cannabinoid-receptor-2-agonist-am1241-on-platelet-derived-growth-factor-expression-in-the-liver-tissue-of-mice-with-hepatic-fibrosis
#2
P He, Y F Wu, H Y Yang, M L Cheng, Y D Liang, Y P Wang
Objective: To investigate the effect of cannabinoid receptor-2 (CB2) agonist AM1241 on the mRNA and protein expression of platelet-derived growth factor (PDGF) and collagen-III (Col-III) in the liver tissue of mice with experimental liver fibrosis induced by carbon tetrachloride (CCl(4)). Methods: Totally 38 8-week-old male C57BL/6J mice were randomly divided into control group, model group, 3 mg/kg CB2 receptor agonist (AM1241) group, and 9 mg/kg AM1241 group. All mice, except for the control group, were treated with 30% CCl(4) (three times a week, 5 ml/kg body weight, 16 weeks) to establish a liver fibrosis model...
November 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/29291403/electrical-stimulation-as-a-conditioning-strategy-for-promoting-and-accelerating-peripheral-nerve-regeneration
#3
J L B Senger, V M K Verge, H S J Macandili, J L Olson, K M Chan, C A Webber
The delivery of a nerve insult (a "conditioning lesion") prior to a subsequent test lesion increases the number of regenerating axons and accelerates the speed of regeneration from the test site. A major barrier to clinical translation is the lack of an ethically acceptable and clinically feasible method of conditioning that does not further damage the nerve. Conditioning electrical stimulation (CES), a non-injurious intervention, has previously been shown to improve neurite outgrowth in vitro. In this study, we examined whether CES upregulates regeneration-associated gene (RAG) expression and promotes nerve regeneration in vivo, similar to a traditional nerve crush conditioning lesion (CCL)...
December 29, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/29287703/smartphone-transmission-of-electrocardiography-images-to-reduce-time-of-cardiac-catheterization-laboratory-activation
#4
Chun-Chieh Chao, Yi-Chun Chen, Chun-Ming Shih, Sen-Kuang Hou, Raghu R Seethala, Imoigele P Aisiku, Chuan-Chin Huang, Peter C Hou, Wei-Fong Kao
BACKGROUND: This retrospective study evaluated the use of a smartphone application to facilitate communication between the emergency physician (EP) and the interventional cardiologist in order to minimize the time to cardiac catheterization laboratory (CCL) activation and time to percutaneous coronary intervention (PCI). METHODS: We retrospectively collected pertinent time-points in the management of patients diagnosed with STEMI in the emergency department and their outcome...
December 26, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/29284831/anesthesiologist-in-cardiac-catheterization-laboratories-the-roles-and-goals-a-postgraduate-educational-review
#5
REVIEW
Akshaya N Shetti, Shivanand L Karigar, Rachita G Mustilwar, D Roshan Singh, Kusha Nag
It is not uncommon to see in developing and underdeveloped countries, where the anesthesiologist who is untrained in cardiac specialty takes care of cardiac catheterization centers. The service in cardiac catheterization laboratories (CCL) in developed countries and some of the developing countries is mainly provided by the cardiac anesthesiologists. The scenario is not same in some part of developing countries or in underdeveloped countries which are mainly due to increase in number of CCL (catheterization laboratory) when compared to the number of cardiac anesthesiologists working outside the operation theater...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29279059/systemic-inflammation-mediates-the-detrimental-effects-of-obesity-on-asthma-control
#6
Xin Zhang, Jing Zheng, Li Zhang, Ying Liu, Gai Ping Chen, Hong Ping Zhang, Lei Wang, De Ying Kang, Lisa G Wood, Gang Wang
BACKGROUND: Obesity negatively impacts asthma control, but the inflammatory mechanisms are poorly understood. OBJECTIVE: To explore which systemic inflammatory mediators mediate the effects of obesity on asthma control. METHODS: The subjects with stable asthma (n = 108) underwent assessment of clinical characteristics, which included using The Asthma Control Questionnaire (ACQ)-6. Obesity was defined as a body mass index (BMI) of ≥30 kg/m2, overweight was defined as BMI between 25 to 29...
January 2, 2018: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/29277763/the-expression-of-matrix-metalloproteinases-in-receptor-activator-of-nuclear-factor-kappa-b-ligand-rankl-expressing-cancer-of-apocrine-origin
#7
Yumi Kambayashi, Taku Fujimura, Sadanori Furudate, Chunbing Lyu, Takanori Hidaka, Aya Kakizaki, Yota Sato, Kayo Tanita, Setsuya Aiba
Primary cutaneous apocrine carcinoma (PCAC) is a rare and highly aggressive tumor entity. Since there is no conventional therapy for advanced PCAC, exploratory treatments are sometimes used. As we previously reported, receptor activator of nuclear factor kappa-B (RANK) ligand (RANKL)/RANK signaling on M2 macrophages promotes the production of chemokines and proinflammatory cytokines to maintain the immunosuppressive tumor environment of extramammary Paget's disease (EMPD). Since EMPD is a skin adenocarcinoma of apocrine gland origin that expresses high levels of RANKL and matrix metalloproteinase (MMP) 7, and EMPD is associated with the presence of RANK+ M2 macrophages, we hypothesized that tumor-associated macrophages (TAMs) in adenocarcinomas such as PCAC might also express RANKL and MMP7...
January 2018: Anticancer Research
https://www.readbyqxmd.com/read/29244180/seasonal-variation-of-allergenic-acarofauna-from-the-homes-of-allergic-rhinitis-and-asthmatic-patients
#8
Navpreet Kaur Gill, Amandeep Kaur Dhaliwal
House dust mites (HDMs) play positive role in causing various kinds of allergenic manifestations such as allergic rhinitis (AR), asthma, dermatitis, and urticaria. HDMs are prevalent in temperate regions but various studies have shown the prevalence of HDMs in tropical and subtropical countries. The present study was conducted from March 2015 to February 2016. During the study period, a total of 500 dust samples were collected from 125 homes of 125 patients suffering from AR and asthma. From these 500 dust samples, 466 samples were found to be positive for mites...
December 13, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29242168/akt1-distinctively-suppresses-myd88-depenedent-and-trif-dependent-toll-like-receptor-signaling-in-a-kinase-activity-independent-manner
#9
Kosuke Zenke, Masashi Muroi, Ken-Ichi Tanamoto
We found that AKT1, a primary effector molecule of PI3K-AKT signaling, distinctively suppressed Toll-like receptor (TLR)-mediated MyD88-dependent and Toll/IL-1R domain-containing adaptor inducing IFN-β (TRIF)-dependent signaling by inhibiting NF-κB activation and IRF3 activity independently of its kinase activity. In AKT1 knockout RAW264.7 cells, lipopolysaccharide (LPS)-induced transcription and protein production of cytokines including IL-1β and TNF-α (regulated by the MyD88-dependent pathway), as well as IFN-β and RANTES (C-C motif chemokine ligand 5: CCL-5; regulated by the TRIF-dependent pathways) was enhanced compared to wild type cells...
December 11, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/29241945/micro-computed-tomography-for-evaluating-alveolar-bone-resorption-induced-by-hyperocclusion
#10
Takashi Tsutsumi, Hiroshi Kajiya, Takashi Tsuzuki, Kazuko T Goto, Koji Okabe, Yutaka Takahashi
PURPOSE: Occlusal trauma, resulting in the destruction of alveolar bone, is a form of periodontal disease caused by excessive mechanical stress (MS) during hyperocclusion. Previously, we showed that CC chemokine ligand (CCL) 2/CCR2 receptor axis plays a crucial role in MS-dependent osteoclastogenesis. However, in the previous work, we were unable to precisely measure changes in alveolar bone profiles. In the present study, we sought to establish a precise method for evaluating alveolar bone resorption induced by hyperocclusion using micro-computed tomography...
December 11, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/29236151/the-effects-of-hap-and-macrophage-cells-to-the-expression-of-inflammatory-factors-and-apoptosis-in-hk-2-cells-of-vitro-co-cultured-system
#11
Junchuan Yu, Yaoliang Deng, Zhiwei Tao, Weixia Liang, Xiaofeng Guan, Jihua Wu, Xin Ning, Yunlong Liu, Quan Liu, Ziqi He
This study developed an in vitro system by co-culturing HK-2 cells with different concentration of hydroxyapatite (HAP) and/or macrophage cells to simulate the internal environment of urolithiasis as far as possible, investigating the regulatory effects of macrophage cells on HAP-induced expression of relative inflammatory factors of HK-2 cells. The control group (H group) was only comprised of HK-2 cells. Experimental groups included co-culturing HK-2 cells and macrophage cells (H + M group), co-culturing HK-2 cells and HAP (H + A group), co-culturing macrophage cells and HAP (M + A group), and co-culturing HK-2 cells and macrophage cells with HAP (H + M + A group)...
December 13, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29228970/chemokine-and-cytokine-levels-in-the-lumbar-cerebrospinal-fluid-of-preterm-infants-with-post-hemorrhagic-hydrocephalus
#12
Gakwaya Habiyaremye, Diego M Morales, Clinton D Morgan, James P McAllister, Travis S CreveCoeur, Rowland H Han, Mohamed Gabir, Brandon Baksh, Deanna Mercer, David D Limbrick
BACKGROUND: Neuroinflammation has been implicated in the pathophysiology of post-hemorrhagic hydrocephalus (PHH) of prematurity, but no comprehensive analysis of signaling molecules has been performed using human cerebrospinal fluid (CSF). METHODS: Lumbar CSF levels of key cytokines (IL-1α, IL-1β, IL-4, IL-6, IL-8, IL-10, IL-12, TNF-α, TGF-β1, IFN-γ) and chemokines (XCL-1, CCL-2, CCL-3, CCL-19, CXCL-10, CXCL-11, CXCL-12) were measured using conventional and multiplexed Enzyme-linked Immunosorbent Assays and compared between preterm infants with PHH and those with no known neurological injury...
December 12, 2017: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/29218051/sphingosine-1-phosphate-and-c-c-chemokine-receptor-2-dependent-activation-of-cd4-plasmacytoid-dendritic-cells-in-the-bone-marrow-contributes-to-signs-of-sepsis-induced-immunosuppression
#13
Anna Smirnov, Stephanie Pohlmann, Melanie Nehring, Shafaqat Ali, Ritu Mann-Nüttel, Stefanie Scheu, Anne-Charlotte Antoni, Wiebke Hansen, Manuela Büettner, Miriam J Gardiasch, Astrid M Westendorf, Florian Wirsdörfer, Eva Pastille, Marcel Dudda, Stefanie B Flohé
Sepsis is the dysregulated response of the host to systemic, mostly bacterial infection, and is associated with an enhanced susceptibility to life-threatening opportunistic infections. During polymicrobial sepsis, dendritic cells (DCs) secrete enhanced levels of interleukin (IL) 10 due to an altered differentiation in the bone marrow and contribute to the development of immunosuppression. We investigated the origin of the altered DC differentiation using murine cecal ligation and puncture (CLP), a model for human polymicrobial sepsis...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29202792/the-cc-chemokine-ligand-ccl-1-upregulated-by-the-viral-transactivator-tax-can-be-downregulated-by-minocycline-possible-implications-for-long-term-treatment-of-htlv-1-associated-myelopathy-tropical-spastic-paraparesis
#14
Mineki Saito, Hiroe Sejima, Tadasuke Naito, Hiroshi Ushirogawa, Toshio Matsuzaki, Eiji Matsuura, Yuetsu Tanaka, Tatsufumi Nakamura, Hiroshi Takashima
BACKGROUND: Chemokine (C-C motif) ligand 1 (CCL1) is produced by activated monocytes/ macrophages and T-lymphocytes, and acts as a potent attractant for Th2 cells and a subset of T-regulatory (Treg) cells. Previous reports have indicated that CCL1 is overexpressed in adult T-cell leukemia cells, mediating an autocrine anti-apoptotic loop. Because CCL1 is also known as a potent chemoattractant that plays a major role in inflammatory processes, we investigated the role of CCL1 in the pathogenesis of human T-cell leukemia virus type 1 (HTLV-1)-associated myelopathy/tropical spastic paraparesis (HAM/TSP)...
December 4, 2017: Virology Journal
https://www.readbyqxmd.com/read/29202212/nebulized-heparin-attenuates-pulmonary-coagulopathy-and-inflammation-through-alveolar-macrophages-in-a-rat-model-of-acute-lung-injury
#15
Laura Chimenti, Marta Camprubí-Rimblas, Raquel Guillamat-Prats, Maria Nieves Gomez, Jessica Tijero, Lluis Blanch, Antonio Artigas
Objective Alveolar macrophages play a key role in the development and resolution of acute respiratory distress syndrome (ARDS), modulating the inflammatory response and the coagulation cascade in lungs. Anti-coagulants may be helpful in the treatment of ARDS. This study investigated the effects of nebulized heparin on the role of alveolar macrophages in limiting lung coagulation and inflammatory response in an animal model of acute lung injury (ALI). Methods Rats were randomized to four experimental groups...
November 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29201216/role-of-microrna-26a-in-the-diagnosis-of-lower-extremity-deep-vein-thrombosis-in-patients-with-bone-trauma
#16
Zi Li, Jiangdong Ni
The present study aimed to investigate the role and mechanism of action of microRNA (miR)-26a in deep vein thrombosis (DVT). Peripheral blood was collected from 45 patients with DVT and 40 healthy controls. Levels of miR-26a, chemokine C-C motif ligand (CCL)2 mRNA and CCL7 mRNA were detected using reverse transcription-quantitative polymerase chain reaction and the value of miR-26a in the clinical diagnosis of DVT was assessed using receiver operating characteristic curve analysis. The correlation of miR-26a with CCL2 and CCL7 levels was analyzed using Spearman's rank correlation...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29193199/muc1-and-survivin-based-dna-vaccine-combining-immunoadjuvants-cpg-and-interleukin-2-in-a-bicistronic-expression-plasmid-generates-specific-immune-responses-and-anti-tumor-effects-in-a-murine-colorectal-carcinoma-model
#17
Chenlu Liu, Yu Xie, Bo Sun, Fei Geng, Fangfang Zhang, Qianqian Guo, Hui Wu, Bin Yu, Jiaxin Wu, Xianghui Yu, Wei Kong, Haihong Zhang
DNA vaccination is a promising cancer treatment due to its safety, but poor immunogenicity limits its application. However, immunoadjuvants, heterogeneous prime-boost strategies and combination with conventional treatments can be used to improve the anti-tumor immune effects. A CpG motif and interleukin 2 (IL-2) cytokine are often used as adjuvants. In this study, a DNA vaccine containing a CpG motif was constructed to evaluate its adjuvant effect. The results show that the cytotoxicity of the DNA vaccine was increased 5-fold, and survival life time was prolonged 2-fold by the CpG motif adjuvant...
November 28, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/29191223/resistin-upregulates-chemokine-production-by-fibroblast-like-synoviocytes-from-patients-with-rheumatoid-arthritis
#18
Hiroshi Sato, Sei Muraoka, Natsuko Kusunoki, Shotaro Masuoka, Soichi Yamada, Hideaki Ogasawara, Toshio Imai, Yoshikiyo Akasaka, Naobumi Tochigi, Hiroshi Takahashi, Kazuaki Tsuchiya, Shinichi Kawai, Toshihiro Nanki
BACKGROUND: Adipokines are bioactive hormones secreted by adipose tissues. Resistin, an adipokine, plays important roles in the regulation of insulin resistance and inflammation. Resistin levels are known to be increased in the serum and synovial fluid of rheumatoid arthritis (RA) patients. However, the pathogenic role of resistin in RA has not yet been elucidated. METHODS: The expression of resistin and adenylate cyclase-associated protein 1 (CAP1), a receptor for resistin, was examined immunohistochemically in synovial tissue...
December 1, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29181126/rhinacanthin-c-alleviates-amyloid-%C3%AE-fibrils-toxicity-on-neurons-and-attenuates-neuroinflammation-triggered-by-lps-amyloid-%C3%AE-and-interferon-%C3%AE-in-glial-cells
#19
Kai-An Chuang, Ming-Han Li, Ni-Hsuan Lin, Chih-Hsuan Chang, I-Huang Lu, I-Hong Pan, Tomoya Takahashi, Ming-Der Perng, Shu-Fang Wen
Neuroinflammation plays a central role in the pathophysiology of Alzheimer's disease (AD). Compounds that suppress neuroinflammation have been identified as potential therapeutic targets for AD. Rhinacanthin C (RC), a naphthoquinone ester found in Rhinacanthus nasutus Kurz (Acanthaceae), is currently proposed as an effective molecule against inflammation. However, the exact role of RC on neuroinflammation remains to be elucidated. In the present study, we investigated RC effect on modulating lipopolysaccharides (LPS), amyloid-β peptide (Aβ), or interferon-γ- (IFN-γ-) evoked pathological events in neurons and glia...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29175164/antibacterial-activity-of-a-new-lectin-isolated-from-the-marine-sponge-chondrilla-caribensis
#20
Dayara Normando Marques, Alexandra Sampaio de Almeida, Andressa Rocha de Oliveira Sousa, Rafael Pereira, Alexandre Lopes Andrade, Renata Pinheiro Chaves, Rômulo Farias Carneiro, Mayron Alves de Vasconcelos, Luiz Gonzaga Ndo Nascimento-Neto, Ulisses Pinheiro, Paula Alexandra Videira, Edson Holanda Teixeira, Celso Shiniti Nagano, Alexandre Holanda Sampaio
A new lectin from the marine sponge Chondrilla caribensis (CCL) was isolated by affinity chromatography in Sepharose 6B media. CCL is a homotetrameric protein formed by subunits of 15,445 ±2Da. The lectin showed affinity for disaccharides containing galactose and mucin. Mass spectrometric analysis revealed about 50% of amino acid sequence of CCL, which showed similarity with a lectin isolated from Aplysina lactuca. Secondary structure consisted of 10% α-helix, 74% β-sheet/β-turn and 16% coil, and this profile was unaltered in a broad range of pH and temperatures...
November 22, 2017: International Journal of Biological Macromolecules
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