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https://www.readbyqxmd.com/read/28337287/memri-is-a-biomarker-defining-nicotine-specific-neuronal-responses-in-subregions-of-the-rodent-brain
#1
Aditya N Bade, Howard E Gendelman, Michael D Boska, Yutong Liu
Nicotine dependence is defined by dopaminergic neuronal activation within the nucleus accumbens (ACB) and by affected neural projections from nicotine-stimulated neurons. Control of any subsequent neural activities would underpin any smoking cessation strategy. While extensive efforts have been made to study the pathophysiology of nicotine addiction, more limited works were developed to find imaging biomarkers. If such biomarkers are made available, addictive behaviors could be monitored noninvasively. To such ends, we employed manganese (Mn(2+))-enhanced magnetic resonance imaging (MEMRI) to determine whether it could be used to monitor neuronal activities after acute and chronic nicotine exposure in rats...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28333235/ovarian-hormones-and-obesity
#2
Brigitte Leeners, Nori Geary, Philippe N Tobler, Lori Asarian
BACKGROUND: Obesity is caused by an imbalance between energy intake, i.e. eating and energy expenditure (EE). Severe obesity is more prevalent in women than men worldwide, and obesity pathophysiology and the resultant obesity-related disease risks differ in women and men. The underlying mechanisms are largely unknown. Pre-clinical and clinical research indicate that ovarian hormones may play a major role. OBJECTIVE AND RATIONALE: We systematically reviewed the clinical and pre-clinical literature on the effects of ovarian hormones on the physiology of adipose tissue (AT) and the regulation of AT mass by energy intake and EE...
March 2, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28332587/bioreactor-mechanically-guided-3d-mesenchymal-stem-cell-chondrogenesis-using-a-biocompatible-novel-thermo-reversible-methylcellulose-based-hydrogel
#3
A Cochis, S Grad, M J Stoddart, S Farè, L Altomare, B Azzimonti, M Alini, L Rimondini
Autologous chondrocyte implantation for cartilage repair represents a challenge because strongly limited by chondrocytes' poor expansion capacity in vitro. Mesenchymal stem cells (MSCs) can differentiate into chondrocytes, while mechanical loading has been proposed as alternative strategy to induce chondrogenesis excluding the use of exogenous factors. Moreover, MSC supporting material selection is fundamental to allow for an active interaction with cells. Here, we tested a novel thermo-reversible hydrogel composed of 8% w/v methylcellulose (MC) in a 0...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28331843/curative-effect-of-hf10-on-liver-and-peritoneal-metastasis-mediated-by-host-antitumor-immunity
#4
Yoshihiro Hotta, Hideki Kasuya, Itzel Bustos, Yoshinori Naoe, Toru Ichinose, Maki Tanaka, Yasuhiro Kodera
BACKGROUND: HF10 is a highly attenuated type 1 herpes simplex virus (HSV) with proven effective oncolytic effect. Previous investigations have demonstrated that colon cancer mice model treated with HF10 not only had better survival but were also resistant to the reimplantation of the antitumor effect mediated by host antitumor immunity. Importantly, it has also been noted that in mice with antitumors implanted on both sides of the back, an injection of HF10 on only one side strongly restrains not only the injected antitumor but also the non-injected ones...
2017: Oncolytic Virotherapy
https://www.readbyqxmd.com/read/28325782/aibp-limits-angiogenesis-thorough-%C3%AE-secretase-mediated-upregulation-of-notch-signaling
#5
Renfang Mao, Shu Meng, Qilin Gu, Raquel Araujo-Gutierrez, Sandeep Kumar, Qing Yan, Felicidad Almazan, Keith A Youker, Yingbin Fu, Henry J Pownall, John P Cooke, Yury I Miller, Longhou Fang
Rationale: Angiogenesis improves perfusion to the ischemic tissue following acute vascular obstruction. Angiogenesis in pathophysiological settings reactivates signaling pathways involved in developmental angiogenesis. We showed previously that apoA-I binding protein (AIBP)-regulated cholesterol efflux in endothelial cells (ECs) controls zebrafish embryonic angiogenesis. Objective: This study is to determine whether loss of AIBP affects angiogenesis in mice during development and under pathological conditions, and to explore the underlying molecular mechanism...
March 21, 2017: Circulation Research
https://www.readbyqxmd.com/read/28324037/autotaxin-is-regulated-by-glucose-and-insulin-in-adipocytes
#6
Kenneth D'Souza, Daniel A Kane, Mohamed Touaibia, Erin E Kershaw, Thomas Pulinilkunnil, Petra C Kienesberger
Autotaxin (ATX) is an adipokine that generates the bioactive lipid, lysophosphatidic acid. Despite recent studies implicating adipose-derived ATX in metabolic disorders including obesity and insulin resistance, the nutritional and hormonal regulation of ATX in adipocytes remains unclear. The present study examined the regulation of ATX in adipocytes by glucose and insulin and the role of ATX in adipocyte metabolism. Induction of insulin resistance in adipocytes with high glucose and insulin concentrations increased ATX secretion, whereas co-incubation with the insulin sensitizer, rosiglitazone, prevented this response...
January 16, 2017: Endocrinology
https://www.readbyqxmd.com/read/28321480/a-new-peptide-vaccine-ocv-501-in-vitro-pharmacology-and-phase-1-study-in-patients-with-acute-myeloid-leukemia
#7
Yukio Kobayashi, Toru Sakura, Shuichi Miyawaki, Kazuyuki Toga, Shinji Sogo, Yuji Heike
Wilms' tumor 1 (WT1) is a promising target of new immunotherapies for acute myeloid leukemia (AML) as well as for other cancers. OCV-501 is a helper peptide derived from the WT1 protein. OCV-501 induced OCV-501-specific Type 1 T-helper (Th1) responses dose-dependently and stimulated helper activity of the specific Th1 cells in peripheral blood mononuclear cells from healthy donors. OCV-501 also enhanced the increase in WT1-killer peptide-specific cytotoxic T lymphocytes. OCV-501 stimulated the OCV-501-specific Th1 clones in an HLA class-II restricted manner and formed a complex with HLA class-II protein...
March 20, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28319551/a-contemporary-medicolegal-analysis-of-implanted-devices-for-chronic-pain-management
#8
Christopher R Abrecht, Penny Greenberg, Ellen Song, Richard D Urman, James P Rathmell
BACKGROUND: Analysis of closed malpractice claims allows the study of rare but serious complications and likely results in improved patient safety by raising awareness of such complications. Clinical studies and closed claims analyses have previously reported on the common complications associated with intrathecal drug delivery systems (IDDS) and spinal cord stimulators (SCS). This study provides a contemporary analysis of claims from within the past 10 years. METHODS: We performed a closed claims analysis for a period January 1, 2009 to December 31, 2013 for cases with pain medicine as the primary service...
April 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28318098/decreased-insulin-stimulated-brown-adipose-tissue-glucose-uptake-after-short-term-exercise-training-in-healthy-middle-aged-men
#9
Piryanka Motiani, Kirsi A Virtanen, Kumail K Motiani, Joonas J Eskelinen, Roeland J Middelbeek, Laurie J Goodyear, Anna M Savolainen, Jukka Kemppainen, Jørgen Jensen, Mueez U Din, Virva Saunavaara, Riitta Parkkola, Eliisa Löyttyniemi, Juhani Knuuti, Pirjo Nuutila, Kari K Kalliokoski, Jarna C Hannukainen
AIMS: Little is known about the effects of exercise training on brown adipose tissue (BAT) metabolism in humans. We tested the hypothesis that high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) improve BAT insulin sensitivity. MATERIALS AND METHODS: Healthy middle-aged men (n = 18, age 47 [CI: 49, 43] years, BMI 25.3 [CI: 24.1-26.3] kg · m(-2) , VO2peak 34.8[CI: 32.1, 37.4] ml · kg(-1)  · min(-1) ) were recruited and randomized into six HIIT or MICT sessions within two weeks...
March 20, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28316325/silencing-of-the-small-gtpase-diras3-induces-cellular-senescence-in-human-white-adipose-stromal-progenitor-cells
#10
Asim Ejaz, Monika Mattesich, Werner Zwerschke
Inhibition of Akt-mTOR signaling protects from obesity and extends life span in animals. In the present study, we analyse the impact of the small GTPase, GTP-binding RAS-like 3 (DIRAS3), a recently identified weight-loss target gene, on cellular senescence in adipose stromal/progenitor cells (ASCs) derived from human subcutaneous white adipose tissue (sWAT). We demonstrate that DIRAS3 knock-down (KD) in ASCs induces activation of Akt-mTOR signaling and proliferation arrest. DIRAS3 KD ASCs lose the potential to form colonies and are negative for Ki-67...
March 17, 2017: Aging
https://www.readbyqxmd.com/read/28303483/proliferation-and-differentiation-of-adipose-tissue-in-prolonged-lean-and-obese-critically-ill-patients
#11
Chloë Goossens, Sarah Vander Perre, Greet Van den Berghe, Lies Langouche
BACKGROUND: In prolonged non-obese critically ill patients, preservation of adipose tissue is prioritized over that of the skeletal muscle and coincides with increased adipogenesis. However, we recently demonstrated that in obese critically ill mice, this priority was switched. In the obese, the use of abundantly available adipose tissue-derived energy substrates was preferred and counteracted muscle wasting. These observations suggest that different processes are ongoing in adipose tissue of lean vs...
December 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28301516/follistatin-attenuates-radiation-induced-fibrosis-in-a-murine-model
#12
Helen B Forrester, David M de Kretser, Trevor Leong, Jim Hagekyriakou, Carl N Sprung
PURPOSE: Fibrosis can be a disabling, severe side effect of radiotherapy that can occur in patients, and for which there is currently no effective treatment. The activins, proteins which are members of the TGFβ superfamily, have a major role in stimulating the inflammatory response and subsequent fibrosis. Follistatin is an endogenous protein that binds the activins virtually irreversibly and inhibits their actions. These studies test if follistatin can attenuate the fibrotic response using a murine model of radiation-induced fibrosis...
2017: PloS One
https://www.readbyqxmd.com/read/28294313/suppression-of-murine-tumor-growth-through-cd8-ctls-via-activated-dec-205-dendritic-cells-by-sequential-administration-of-%C3%AE-galactosylceramide-in-vivo
#13
Hideki Kogo, Masumi Shimizu, Yasuyuki Negishi, Eiji Uchida, Hidemi Takahashi
Cancer immunity is mediated through the effective priming and activation of tumor-specific class I major histocompatibility complex (MHC-I) molecule-restricted CD8(+) cytotoxic T lymphocytes (CTLs). DEC-205(+) dendritic cells (DCs) can cross-present the epitope(s) of captured tumor antigens associated with class I MHC molecules alongside co-stimulatory molecules to prime and activate tumor-specific CD8(+) CTLs. Immunosuppressive tolerogenic DCs with reduced co-stimulatory molecules may be a cause of impaired CTL induction...
March 12, 2017: Immunology
https://www.readbyqxmd.com/read/28292562/a-quantitative-analysis-of-multilineage-differentiating-stress-enduring-muse-cells-in-human-adipose-tissue-and-efficacy-of-melanocytes-induction
#14
Takeshi Yamauchi, Kenshi Yamasaki, Kenichiro Tsuchiyama, Saaya Koike, Setsuya Aiba
We have shown previously that multilineage-differentiating stress-enduring (Muse) cells in neonatal fibroblasts can differentiate into functional melanocytes. In this study, we quantitate Muse cells in adipose-mesenchymal stem cells (adipose-MSCs) of human subcutaneous tissue obtained from 11 subjects of various ages, and measured efficacy of melanocytes induction from Adipose-MSC-derived Muse cells (hASC-Muse cells). There was a statistically significant negative correlation between the age of donors and the numbers of adipose-MSCs recovered per g fat as well as the percentage of SSEA3+ cells in the adipose-MSC populations, but isolated hASC-Muse cells showed pluripotency and growth curves equally regardless the age of donors...
March 6, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28290134/animal-models-of-seizures-and-epilepsy-past-present-and-future-role-for-the-discovery-of-antiseizure-drugs
#15
Wolfgang Löscher
The identification of potential therapeutic agents for the treatment of epilepsy requires the use of seizure models. Except for some early treatments, including bromides and phenobarbital, the antiseizure activity of all clinically used drugs was, for the most part, defined by acute seizure models in rodents using the maximal electroshock and subcutaneous pentylenetetrazole seizure tests and the electrically kindled rat. Unfortunately, the clinical evidence to date would suggest that none of these models, albeit useful, are likely to identify those therapeutics that will effectively manage patients with drug resistant seizures...
March 13, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28288754/preliminary-evaluation-of-a-thermosensitive-chitosan-hydrogel-for-echinococcus-granulosus-vaccine-delivery
#16
Saleh Umair, Anton Pernthaner, Qing Deng, Blake Gibson, Sarah Hook, David Heath
The EG95 vaccine is effective in protecting grazing animals from infection with Echinococcus granulosus. Six male lambs were used in the study, two were each vaccinated subcutaneously with 50μg EG95/1mg Quil-A, two animals were each vaccinated with 50μg EG95/1mg Quil-A in 1% chitosan thermolabile gel subcutaneously, and two animals served as non-vaccinated controls. Two vaccinations were given at a 7 week interval. Two vaccinations induced a significantly higher antibody titre in the chitosan group compared with the Quil-A only group...
March 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28287912/osteogenic-differentiation-of-mesenchymal-stromal-cells-a-comparative-analysis-between-human-subcutaneous-adipose-tissue-and-dental-pulp
#17
Iolanda D'Alimonte, Filiberto Mastrangelo, Patricia Giuliani, Laura Pierdomenico, Marco Marchisio, Mariachiara Zuccarini, Patrizia Di Iorio, Raimondo Quaresima, Francesco Caciagli, Renata Ciccarelli
White adipose tissue is a source of mesenchymal stromal/stem cells (MSCs) that are actively studied for their possible therapeutic use in bone tissue repair/remodeling. To better appreciate the osteogenic potential of these cells, we compared some properties of MSCs from human subcutaneous adipose tissue [subcutaneous-adipose stromal cells (S-ASCs)] and dental pulp stem cell (DPSCs) of third-impacted molars, the latter representing a well-established MSC source. Both undifferentiated cell types showed similar fibroblast-like morphology and mesenchymal marker expression...
March 13, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28286322/secreted-phosphoprotein-24kd-spp24-inhibits-growth-of-hepatocellular-carcinoma-in-vivo
#18
Lifeng Lao, Jia Shen, Haijun Tian, Guibin Zhong, Samuel S Murray, Jeffrey C Wang
Several studies have shown that secreted phosphoprotein 24kD (Spp24) inhibits tumor growth. However, the effects of spp24 on hepatocellular carcinoma are not quite clear. In this study, we observed the inhibitory effect of spp24 on hepatocellular carcinoma in vivo. A subcutaneous hepatocellular carcinoma mice model was established by using Hep G2 cells. After sacrifice at day 40, tumor growth was assessed and tumor cell apoptosis and tumor cells proliferation were assessed by TUNEL assay and immunochemical analysis, respectively...
March 4, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28286291/human-%C3%AE-defensin-2-and-interleukin-1%C3%AE-expression-in-response-to-porphyromonas-gingivalis-challenge-in-mice-transplanted-with-periodontitic-human-gingiva
#19
Tomoko Shimizu, Masahiro To, Yohei Kamata, Juri Saruta, Takenori Sato, Shinya Fuchida, Nobushiro Hamada, Keiichi Tsukinoki
Inter-individual variability in the host response contributes significantly to expression of periodontal disease. Thus, research into the human host response is considered important in the analysis of periodontal disease. Human β-defensin-2 (hBD-2) is typically produced by epithelial tissues after stimulation with microorganisms and inflammatory mediators, and it contributes to the initial defense in the innate immune response. However, hBD-2 expression in response to infection has not been investigated in human gingival tissue with periodontitis...
March 9, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28281844/cxcr7-as-a-chemokine-receptor-for-sdf-1-promotes-gastric-cancer-progression-via-mapk-pathways
#20
Ameng Shi, Haitao Shi, Lei Dong, Shaoxian Xu, Miao Jia, Xiaoyan Guo, Ting Wang
OBJECTIVE: As the alternate receptor for stromal cell-derived factor-1 (SDF-1) except CXCR4, CXCR7 has been shown to be involved in the progression of some malignancies. However, the role of SDF-1/CXCR7 in gastric cancer (GC) remains unclear. MATERIALS AND METHODS: CXCR7 expression was examined in 83 human GC tissues and adjacent non-cancer tissues (ANCTs) by immunohistochemistry, in three human GC cell lines (MGC-803, BGC-823 and SGC-7901) by reverse transcription-PCR and western blot...
March 10, 2017: Scandinavian Journal of Gastroenterology
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