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https://www.readbyqxmd.com/read/28527347/immunostimulatory-activity-of-plumieride-an-iridoid-in-augmenting-immune-system-by-targeting-th-1-pathway-in-balb-c-mice
#1
Jasvinder Singh, Arem Qayum, Rachna D Singh, Mytre Koul, Anpurna Kaul, N K Satti, Prabhu Dutt, Abid Hamid, Shashank Singh
Plumieride, an iridoid glucoside isolated from Plumieria acutifolia leaves was investigated for its immunostimulatory activity on humoral, cell mediated and intracellular cytokine levels in sensitized and unsensitised balb/c mice. Plumieride restores the suppressed cell mediated, humoral immune response and also enhances the release of TNF- α, IFN-γ, and IL-2 (Th-1) in immune compromised cyclosporine and cyclophosphamide treated balb/c mice. It does not stimulate the IL-4 (Th-2) expression. Plumieride demonstrates significant augmentation of Th-1 response in immunosuppressed balb/c mice...
May 17, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28527193/comparison-of-digital-intraoral-scanners-by-single-image-capture-system-and-full-color-movie-system
#2
Meguru Yamamoto, Yu Kataoka, Atsufumi Manabe
BACKGROUND: The use of dental computer-aided design/computer-aided manufacturing (CAD/CAM) restoration is rapidly increasing. OBJECTIVE: This study was performed to evaluate the marginal and internal cement thickness and the adhesive gap of internal cavities comprising CAD/CAM materials using two digital impression acquisition methods and micro-computed tomography. METHODS: Images obtained by a single-image acquisition system (Bluecam Ver...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28527061/ketogenic-diet-in-migraine-rationale-findings-and-perspectives
#3
Piero Barbanti, Luisa Fofi, Cinzia Aurilia, Gabriella Egeo, Massimiliano Caprio
Ketogenic diet (KD) is an established treatment for refractory pediatric epilepsy and a promising therapy for diverse neurological diseases. Clinical data on KD in migraine-obtained from 150 patients investigated in case reports and prospective studies-suggest that KD may be a rapid onset effective prophylaxis for episodic and chronic migraine. KD would contribute to restore brain excitability and metabolism and to counteract neuroinflammation in migraine, although its precise mechanism is still unclear. Randomized controlled studies are needed to confirm the usefulness of KD in migraine and to investigate its optimal duration, repeatability, feasibility in normal weight subjects, efficacy in pediatric population and association to conventional migraine prophylaxis...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28526935/diabetes-induced-abnormalities-of-mitochondrial-function-in-rat-brain-cortex-the-effect-of-n-3-fatty-acid-diet
#4
Maria Chomova, Maria Balazova, Jana Muchova
Diabetic encephalopathy, a proven complication of diabetes is associated with gradually developing end-organ damage in the CNS increasing the risk of stroke, cognitive dysfunction or Alzheimer's disease. This study investigated the response of rat cortical mitochondria to streptozotocin-induced diabetes and the potential for fish oil emulsion (FOE) to modulate mitochondrial function. Diabetes-induced deregulation of the respiratory chain function as a result of diminished complex I activity (CI) and cytochrome c oxidase hyperactivity was associated with attenuation of antioxidant defense of isolated cortical mitochondria, monitored by SOD activity, the thiol content, the dityrosine and protein-lipid peroxidation adduct formation...
May 19, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28526890/a-heteromeric-molecular-complex-regulates-the-migration-of-lung-alveolar-epithelial-cells-during-wound-healing
#5
Manik C Ghosh, Patrudu S Makena, Joseph Kennedy, Bin Teng, Charlean Luellen, Scott E Sinclair, Christopher M Waters
Alveolar type II epithelial cells (ATII) are instrumental in early wound healing in response to lung injury, restoring epithelial integrity through spreading and migration. We previously reported in separate studies that focal adhesion kinase-1 (FAK) and the chemokine receptor CXCR4 promote epithelial repair mechanisms. However, potential interactions between these two pathways were not previously considered. In the present study, we found that wounding of rat ATII cells promoted increased association between FAK and CXCR4...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526833/grassland-restoration-reduces-water-yield-in-the-headstream-region-of-yangtze-river
#6
Jia Li, Dan Liu, Tao Wang, Yingnian Li, Shiping Wang, Yuting Yang, Xiaoyi Wang, Hui Guo, Shushi Peng, Jinzhi Ding, Miaogen Shen, Lei Wang
Large-scale ecological restoration programs are considered as one of the key strategies to enhance ecosystem services. The Headstream region of Yangtze River (HYZR), which is claimed to be China's Water Tower but witnessed the rapid grassland deterioration during 1970s-2000, has seen a series of grassland restoration programs since 2000. But few studies have thoroughly estimated the hydrological effect of this recent grassland restoration. Here we show that restoration significantly reduces growing-season water yield coefficient (WYC) from 0...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526804/ova12-promotes-tumor-growth-by-regulating-p53-expression-in-human-cancer-cells
#7
Renfeng Zhang, Xicai Wu, Xiangfeng Xia, Asma Khanniche, Feifei Song, Bingchang Zhang, Ying Wang, Hailiang Ge
Ovarian cancer-associated antigen 12 (OVA12) was first identified in an ovarian carcinoma complementary DNA (cDNA) expression library and has been shown to play an important role in tumor growth. Here, we found that overexpression of OVA12 accelerated tumor growth in different tumor cells, whereas OVA12 depletion was associated with the opposite effect. Moreover, knocking down OVA12 led to a significant increase in the protein levels of p53, and the overexpression of OVA12 significantly decreased endogenous p53 levels...
April 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28526727/inconvenient-realities-and-the-path-toward-science-based-forest-restoration-policies-a-reply-to-veldman-et-al
#8
Robin L Chazdon, Lars H Laestadius
No abstract text is available yet for this article.
May 19, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28526713/co-evolution-of-domain-interactions-in-the-chloroplast-tgd1-2-3-lipid-transfer-complex-specific-to-brassicaceae-and-poaceae-plants
#9
Yang Yang, Agnieszka Zienkiewicz, Anastasiya Lavell, Christoph Benning
The import of lipids into the chloroplast is essential for photosynthetic membrane biogenesis. This process requires an ABC transporter in the inner envelope membrane with three subunits, TRIGALACTOSYLDIACYLGLYCEROL (TGD) 1, 2, and 3 named after the oligogalactolipids that accumulate in the respective Arabidopsis thaliana mutants. Unlike Arabidopsis, in the model grass Brachypodium distachyon, chloroplast lipid biosynthesis is largely dependent on imported precursors, resulting in a characteristic difference in chloroplast lipid acyl composition between plants...
May 19, 2017: Plant Cell
https://www.readbyqxmd.com/read/28526690/emerging-concepts-in-biliary-repair-and-fibrosis
#10
Luca Fabris, Carlo Spirli, Massimiliano Cadamuro, Romina Fiorotto, Mario Strazzabosco
Chronic diseases of the biliary tree (cholangiopathies) represent one of the major unmet needs in clinical hepatology and a significant knowledge gap in liver pathophysiology. The common theme in cholangiopathies is that the target of the disease is the biliary tree. After damage to the biliary epithelium, inflammatory changes stimulate a reparative response with proliferation of cholangiocytes and restoration of the biliary architecture, owing to the re-activation of a variety of morphogenetic signals. Chronic damage and inflammation, will ultimately result in pathologic repair, with generation of biliary fibrosis and clinical progression of the disease...
May 19, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28526687/ffa2-activation-combined-with-ulcerogenic-cox-inhibition-induces-duodenal-mucosal-injury-via-the-5-ht-pathway-in-rats
#11
Yasutada Akiba, Koji Maruta, Kazuyuki Narimatsu, Hyder Said, Izumi Kaji, Ayaka Kuri, Ken-Ichi Iwamoto, Atsukazu Kuwahara, Jonathan D Kaunitz
Serotonin (5-HT), predominantly synthesized and released by enterochromaffin cells, is implicated in gastrointestinal symptoms such as emesis, abdominal pain and diarrhea. Since luminal short-chain fatty acids (SCFAs) release 5-HT from enterochromaffin cells, which express the SCFA receptor FFA2 in rat duodenum, we examined the effects of the selective FFA2 agonist phenylacetamide-1 (PA1) on duodenal 5-HT release with consequent bicarbonate secretion (DBS) and on indomethacin (IND)-induced enteropathy. Intestinal injury was induced by IND (10 mg/kg, sc) with or without PA1...
May 19, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28526499/gastric-conduit-revision-postesophagectomy-management-for-a-rare-complication
#12
Jessica Yu Rove, A Sasha Krupnick, Frank A Baciewicz, Bryan F Meyers
OBJECTIVE: Severe postesophagectomy gastric conduit dysfunction refractory to standard endoscopic intervention is rare, with few published reports discussing timing, technique, or results of reoperation. This case series examines assessment and management of severe conduit dysfunction and details techniques for conduit revision. METHODS: We retrospectively reviewed patients who underwent esophagectomy between September 2008 and October 2015 and studied patients who underwent conduit revision...
April 13, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28526444/the-development-of-a-novel-shade-selection-program-for-fixed-shade-translucent-dental-materials
#13
Melody N Carney, William M Johnston
OBJECTIVES: The objective of this study was to develop a shade selection program that predicts the shade choice with the smallest CIEDE2000 color difference for dental composite resin restorations when given a backing and target shade. By utilizing previously generated regression models, a database of spectral reflectance information, and principles of Kubelka-Munk layering, a highly accurate shade selection program was designed. METHODS: Using SAS 9.3 Statistical Analysis Software, a shade selection program was developed that incorporated Kubelka-Munk layering data of Herculite Ultra and Estelite Omega composite resins from a characterized database of absorption and scattering information...
May 16, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28526443/mechanical-properties-of-polymer-infiltrated-ceramic-sodium-aluminum-silicate-composites-for-dental-restoration
#14
Bencang Cui, Jing Li, Huining Wang, Yuanhua Lin, Yang Shen, Ming Li, Xuliang Deng, Cewen Nan
OBJECTIVE: To fabricate indirect restorative composites for CAD/CAM applications and evaluate the mechanical properties. METHODS: Polymer-infiltrated-ceramic composites were prepared through infiltrating polymer into partially sintered sodium aluminum silicate ceramic blocks and curing. The corresponding samples were fabricated according to standard ISO-4049 using for mechanical properties measurement. The flexural strength and fracture toughness were measured using a mechanical property testing machine...
May 16, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28526405/hypoxia-inducible-factor-l%C3%AE-mediates-aggrecan-and-collagen-%C3%AE-expression-via-notch1-signaling-in-nucleus-pulposus-cells-during-intervertebral-disc-degeneration
#15
Zhuochao Liu, Changwei Li, Xiangchao Meng, Yunting Bai, Jin Qi, Jun Wang, Qi Zhou, Weibin Zhang, Xingkai Zhang
Although hypoxia-inducible factor-lα (HIF-lα) has been reported to have an important role in the metabolism and synthesis of the extracellular matrix (ECM) of nucleus pulposus cells (NPCs), the underlying mechanism has not been fully clarified. Here, we show for the first time that NOTCH1 expression is decreased in NPs isolated from degenerated human intervertebral discs (IVDs), as well as in the NPs of NP-specific HIF-1α(-/-) mice. Our study reveals that overexpression of HIF-1α leads to increased expression of NOTCH1, the NOTCH1 ligand JAGGED1, and its target gene hairy and enhancer of split-1 (HES1), while also upregulating collagen Π and aggrecan expression in human NPCs...
May 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28526389/citrulline-stimulates-locomotor-activity-in-aged-rats-implication-of-the-dopaminergic-pathway
#16
Christophe Moinard, Laurent Tliba, Jorge Diaz, Servane Le Plénier, Laure Nay, Nathalie Neveux, Luc Cynober, Agathe Raynaud-Simon
OBJECTIVES: A citrulline (CIT)-enriched diet improves locomotor activity in aged rats, but the underlying mechanism is unknown. The aim of this study was to determine the effect of CIT administration on locomotor activity and dopamine activity in healthy aged rats. METHODS: Sixty adult (3-mo-old) and aged (20-mo-old) rats were divided into four groups (n = 15 each) stratified by age (adult versus old) and diet (control versus CIT; i.e., Ad-Control, Ad-CIT, Old-Control, Old-CIT) and fed for 4 d on either a CIT-enriched diet (5 g/kg daily; Ad-CIT and Old-CIT) or an isonitrogeneous control diet (Ad-Control and Old-Control)...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28526384/stereology-shows-that-damaged-liver-recovers-after-protein-refeeding
#17
Silvio Pires Gomes, Andréa Almeida Pinto da Silva, Amanda Rabello Crisma, Primavera Borelli, Francisco Javier Hernandez-Blazquez, Mariana P de Melo, Barbara Bacci, Andrzej Loesch, A Augusto Coppi
OBJECTIVE: The aim of the present study was to investigate the putative effects of a low-protein diet on the three-dimensional structure of hepatocytes and determine whether this scenario could be reversed by restoring the adequate levels of protein to the diet. METHODS: Using design-based stereology, the total number and volume of hepatocytes were estimated in the liver of mice in healthy and altered (by protein malnutrition) conditions and after protein renutrition...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28526246/impaired-mitophagy-facilitates-mitochondrial-damage-in-danon-disease
#18
Sherin I Hashem, Anne N Murphy, Ajit S Divakaruni, Matthew L Klos, Bradley C Nelson, Emily C Gault, Teisha J Rowland, Cynthia N Perry, Yusu Gu, Nancy D Dalton, William H Bradford, Eric J Devaney, Kirk L Peterson, Kenneth L Jones, Matthew R G Taylor, Ju Chen, Neil C Chi, Eric D Adler
RATIONALE: Lysosomal associated membrane protein type-2 (LAMP-2) is a highly conserved, ubiquitous protein that is critical for autophagic flux. Loss of function mutations in the LAMP-2 gene cause Danon disease, a rare X-linked disorder characterized by developmental delay, skeletal muscle weakness, and severe cardiomyopathy. We previously found that human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) from Danon patients exhibited significant mitochondrial oxidative stress and apoptosis...
May 16, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28526237/small-molecule-inhibition-of-wnt-signaling-abrogates-dexamethasone-induced-phenotype-of-primary-human-trabecular-meshwork-cells
#19
Sarah D Ahadome, Chi Zhang, Elizabeth Tannous, James Shen, Jie J Zheng
Trabecular meshwork (TM) cells are the governing regulators of the TM structure. When the functionality of these cells is impaired, the structure of the TM is perturbed, which often results in increased ocular hypertension. High intraocular pressure is the most significant risk factor for steroid-induced glaucoma. Dexamethasone (Dex) induced phenotype of TM cells is widely utilized as a model system to gain insight into mechanisms underlying damaged TM in glaucoma. In this study, to assess the possible role of the abnormal Wnt signaling in steroid-induced glaucoma, we analyzed the effects of small-molecule Wnt signaling modulators on Dex-induced expression extracellular matrix proteins of primary human TM cells...
May 16, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28526214/high-glucose-environment-induced-intracellular-o-glcnac-glycosylation-and-reduced-galectin-7-expression-in-keratinocytes-implications-on-impaired-diabetic-wound-healing
#20
Shu-Mei Huang, Ching-Shuang Wu, Min-Hsi Chiu, Hui-Jun Yang, Gwo-Shing Chen, Cheng-Che E Lan
BACKGROUND: Diabetes is an important global health issue due to its increasing prevalence and association with various complications. Impaired wound healing is a serious complication associated with diabetes that frequently results in infection and amputation. Galectin-7 (Gal-7) has been reported to play an important role during skin wound healing. Previously, we had demonstrated that high glucose environment alters physiologic functions of keratinocytes and contributes to impaired wound healing in diabetic condition...
April 30, 2017: Journal of Dermatological Science
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