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https://www.readbyqxmd.com/read/28633902/calcium-sensing-receptor-initiating-cystathionine-gamma-lyase-hydrogen-sulfide-pathway-to-inhibit-platelet-activation-in-hyperhomocysteinemia-rat
#1
Yuwen Wang, Ziqing Zhao, Sa Shi, Fei Gao, Jichao Wu, Shiyun Dong, Weihua Zhang, Yanhong Liu, Xin Zhong
Hyperhomocysteinemia (HHcy, high homocysteine) induces the injury of endothelial cells (ECs). Hydrogen sulfide (H2S) protects ECs and inhibits the activation of platelets. Calcium-sensing receptor (CaSR) regulates the production of endogenous H2S. However, whether CaSR inhibits the injury of ECs and the activation of platelets by regulating the endogenous cystathionine-gamma-lyase (CSE, a major enzyme that produces H2S)/H2S pathway in hyperhomocysteinemia has not been previously investigated. Here, we tested the ultrastructure alterations of ECs and platelets, the changes in the concentration of serum homocysteine and the parameters of blood of hyperhomocysteinemia rats were measured...
June 17, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28629211/effect-of-methoxsalen-on-ca%C3%A2-%C3%A2-%C2%BA-homeostasis-and-viability-in-human-osteosarcoma-cells
#2
Yi-Chau Lu, Chiang-Ting Chou, Wei-Zhe Liang, Chun-Chi Kuo, Shu-Shong Hsu, Jue-Long Wang, Chung-Ren Jan
Methoxsalen is a natural compound found in many seed plants. The effect of methoxsalen on Ca²⁺- related physiology in human osteosarcoma is unclear. This study investigated the effect of methoxsalen on cytosolic free Ca²⁺ concentrations ([Ca²⁺]i) in MG63 human osteosarcoma cells. Methoxsalen induced [Ca²⁺]i rises concentration-dependently. Methoxsalen-induced Ca²⁺ entry was confirmed by Mn²⁺-induced quench of fura-2 fluorescence. This Ca²⁺ entry was suppressed by nifedipine, econazole, and SKF96365...
June 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28615108/kinematics-of-different-components-of-the-posterolateral-corner-of-the-knee-in-the-lateral-collateral-ligament-intact-state-a-human-cadaveric%C3%A2-study
#3
Christoph Domnick, Karl-Heinz Frosch, Michael J Raschke, Nils Vogel, Martin Schulze, Mathias von Glahn, Tobias C Drenck, Mirco Herbort
PURPOSE: To determine the static stabilizing effects of different anatomical structures of the posterolateral corner (PLC) of the knee in the lateral collateral ligament (LCL)-intact state. METHODS: Thirteen fresh-frozen human cadaveric knees were dissected and tested using an industrial robot with an optical tracking system. Kinematics were determined for 134 N anterior/posterior loads, 10 N m valgus/varus loads, and 5 N m internal/external rotatory loads in 0°, 20°, 30°, 60°, and 90° of knee flexion...
June 11, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28607855/seri-surgical-scaffold-in-2-stage-breast-reconstruction-2-year-data-from-a-prospective-multicenter-trial
#4
Nolan Karp, Mihye Choi, David A Kulber, Susan Downey, Gloria Duda, Gabriel M Kind, Mark L Jewell, Diane K Murphy, Max R Lehfeldt, Neil Fine
BACKGROUND: Soft-tissue support devices are used during breast reconstruction. This study investigated long-term clinical data following SERI Surgical Scaffold (SERI) implantation, a bioresorbable, silk-derived scaffold for soft-tissue support. METHODS: This was a prospective, multicenter study in 103 subjects who received SERI during stage 1 of 2-stage breast reconstruction with subpectoral tissue expander placement (Natrelle Style 133V; Allergan plc, Dublin, Ireland) followed by subpectoral breast implant placement...
May 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28589943/the-signalling-receptor-mcam-coordinates-apical-basal-polarity-and-planar-cell-polarity-during-morphogenesis
#5
Qian Gao, Junfeng Zhang, Xiumei Wang, Ying Liu, Rongqiao He, Xingfeng Liu, Fei Wang, Jing Feng, Dongling Yang, Zhaoqing Wang, Anming Meng, Xiyun Yan
The apical-basal (AB) polarity and planar cell polarity (PCP) provide an animal cell population with different phenotypes during morphogenesis. However, how cells couple these two patterning systems remains unclear. Here we provide in vivo evidence that melanoma cell adhesion molecule (MCAM) coordinates AB polarity-driven lumenogenesis and c-Jun N-terminal kinase (JNK)/PCP-dependent ciliogenesis. We identify that MCAM is an independent receptor of fibroblast growth factor 4 (FGF4), a membrane anchor of phospholipase C-γ (PLC-γ), an immediate upstream receptor of nuclear factor of activated T-cells (NFAT) and a constitutive activator of JNK...
June 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/28588469/oxytocin-increases-the-perceived-value-of-both-self-and-other-owned-items-and-alters-medial-prefrontal-cortex-activity-in-an-endowment-task
#6
Weihua Zhao, Yayuan Geng, Lizhu Luo, Zhiying Zhao, Xiaole Ma, Lei Xu, Shuxia Yao, Keith M Kendrick
The neuropeptide oxytocin (OXT) can influence self-processing and may help motivate us to value the attributes of others in a more self-like manner by reducing medial prefrontal cortex (mPFC) responses. We do not know however whether this OXT effect extends to possessions. We tend to place a higher monetary value on specific objects that belong to us compared to others, known as the "endowment effect". In two double-blind, between-subject placebo (PLC) controlled experiments in subjects from a collectivist culture, we investigated the influence of intranasal OXT on the endowment effect, with the second study incorporating functional magnetic resonance imaging (fMRI)...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28580708/how-the-brain-codes-intimacy-the-neurobiological-substrates-of-romantic-touch
#7
Ann-Kathrin Kreuder, Dirk Scheele, Lea Wassermann, Michael Wollseifer, Birgit Stoffel-Wagner, Mary R Lee, Juergen Hennig, Wolfgang Maier, René Hurlemann
Humans belong to a minority of mammalian species that exhibit monogamous pair-bonds, thereby enabling biparental care of offspring. The high reward value of interpersonal closeness and touch in couples is a key proximate mechanism facilitating the maintenance of enduring romantic bonds. However, surprisingly, the neurobiological underpinnings mediating the unique experience of a romantic partner's touch remain unknown. In this randomized placebo (PLC)-controlled, between-group, pharmacofunctional magnetic resonance imaging (fMRI) study involving 192 healthy volunteers (96 heterosexual couples), we intranasally administered 24 IU of the hypothalamic peptide oxytocin (OXT) to either the man or the woman...
June 5, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28580285/opposing-effects-of-prostaglandin-e2-receptors-ep3-and-ep4-on-mouse-and-human-%C3%AE-cell-survival-and-proliferation
#8
Bethany A Carboneau, Jack A Allan, Shannon E Townsend, Michelle E Kimple, Richard M Breyer, Maureen Gannon
OBJECTIVE: Hyperglycemia and systemic inflammation, hallmarks of Type 2 Diabetes (T2D), can induce the production of the inflammatory signaling molecule Prostaglandin E2 (PGE2) in islets. The effects of PGE2 are mediated by its four receptors, E-Prostanoid Receptors 1-4 (EP1-4). EP3 and EP4 play opposing roles in many cell types due to signaling through different G proteins, Gi and GS, respectively. We previously found that EP3 and EP4 expression are reciprocally regulated by activation of the FoxM1 transcription factor, which promotes β-cell proliferation and survival...
June 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28580250/combined-all-inside-anterior-cruciate-ligament-reconstruction-and-minimally-invasive-posterolateral-corner-reconstruction-using-ipsilateral-semitendinosus-and-gracilis-autograft
#9
Zakk M Borton, Sam K Yasen, Edward M Britton, Samuel R Heaton, Harry C Palmer, Adrian J Wilson
The anterior cruciate ligament (ACL) is the most commonly injured knee ligament, particularly among adolescents and young adults. Unrecognized posterolateral laxity is understood as a major cause of ACL reconstruction failure, and concomitant injury to the posterolateral corner (PLC) is prevalent and underdetected. We advocate screening all ACL-deficient knees for PLC injury and present a technique combining minimally invasive PLC reconstruction with anatomic all-inside ACL reconstruction. The combined procedure uses only the ipsilateral hamstring tendons representing a major surgical advantage over traditional management approaches...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28577304/the-association-between-individual-metabolic-syndrome-components-primary-liver-cancer-and-cirrhosis-a-study-in-the-swedish-amoris-cohort
#10
Paul Nderitu, Cecilia Bosco, Hans Garmo, Lars Holmberg, Håkan Malmström, Niklas Hammar, Göran Walldius, Ingmar Jungner, Paul Ross, Mieke Van Hemelrijck
Metabolic syndrome (MetS) is associated with non-alcoholic fatty liver disease, which may progress to cirrhosis, a significant risk factor of hepatocellular carcinoma (HCC), the commonest malignant primary liver cancer (PLC). We investigated the association between the individual components of MetS (lipids, apolipoproteins, raised glucose, diabetes and obesity), PLC and cirrhosis. A total of 509,436 participants from the Swedish AMORIS cohort, recruited between January 1985 and December 1996 (end-date December 2011), aged ≥20 with baseline triglycerides (TG), total cholesterol (TC), glucose and liver enzymes were included...
June 2, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28575974/construction-of-biodegradable-and-biocompatible-aie-active-fluorescent-polymeric-nanoparticles-by-ce-iv-hno3-redox-polymerization-in-aqueous-solution
#11
Shengxian Yu, Dazhuang Xu, Qing Wan, Meiying Liu, Jianwen Tian, Qiang Huang, Fengjie Deng, Yuanqing Wen, Xiaoyong Zhang, Yen Wei
Aggregation-induced emission (AIE) active fluorescence polymeric nanoparticles (FPNs) have recently received increasing interests for biomedical applications such as cell imaging, drug delivery, disease diagnosis and treatment. Fabricated strategies of AIE-active FPNs with high efficiency, simplification and tenderness are still passionately pursued to promote the development of theranostic systems. In this work, we develop a facile method for the preparation of AIE-active FPNs by adopting Ce(IV)/HNO3 redox polymerization under near room temperature...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28549244/ll-37-induced-human-mast-cell-activation-through-g-protein-coupled-receptor-mrgx2
#12
Yangyang Yu, Yuanyuan Zhang, Yarui Zhang, Yihong Lai, Wenwen Chen, Zhangang Xiao, Wei Zhang, Meiling Jin, Bo Yu
Human LL-37 is an important class of cationic antimicrobial peptide (CAP) that is known to stimulate mast cell activation. While many studies have been conducted on LL-37, to date little is known about the functional receptors for LL-37-induced human mast cell activation, in particular in terms of the release of de novo synthesized mediators. Thus, the aim of the present study is to identify the functional receptors for LL-37-induced human mast cell activation in terms of the degranulation and release of de novo synthesized mediators and investigate the downstream signalling pathways involved in mast cell activation...
May 23, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28547583/genome-wide-identification-and-characterization-of-phospholipase-c-gene-family-in-cotton-gossypium-spp
#13
Bing Zhang, Yanmei Wang, Jin-Yuan Liu
Phospholipase C (PLC) are important regulatory enzymes involved in several lipid and Ca(2+)-dependent signaling pathways. Previous studies have elucidated the versatile roles of PLC genes in growth, development and stress responses of many plants, however, the systematic analyses of PLC genes in the important fiber-producing plant, cotton, are still deficient. In this study, through genome-wide survey, we identified twelve phosphatidylinositol-specific PLC (PI-PLC) and nine non-specific PLC (NPC) genes in the allotetraploid upland cotton Gossypium hirsutum and nine PI-PLC and six NPC genes in two diploid cotton G...
May 19, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28545547/clonorchis-sinensis-granulin-identification-immunolocalization-and-function-in-promoting-the-metastasis-of-cholangiocarcinoma-and-hepatocellular-carcinoma
#14
Caiqin Wang, Huali Lei, Yanli Tian, Mei Shang, Yinjuan Wu, Ye Li, Lu Zhao, Mengchen Shi, Xin Tang, Tingjin Chen, Zhiyue Lv, Yan Huang, Xiaoping Tang, Xinbing Yu, Xuerong Li
BACKGROUND: Long-term infections by Clonorchis sinensis are associated with cholangitis, cholecystitis, liver fibrosis, cirrhosis, and even liver cancer. Molecules from the worm play vital roles in disease progress. In the present study, we identified and explored molecular characterization of C. sinensis granulin (CsGRN), a growth factor-like protein from C. sinensis excretory/secretory products (CsESPs). METHODS: The encoding sequence and conserved domains of CsGRN were identified and analysed by bioinformatics tools...
May 25, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28535942/gallic-acid-increases-atrial-natriuretic-peptide-secretion-and-mechanical-dynamics-through-activation-of-pkc
#15
Xia Liu, Ying Zhang, Lan Hong, Chun-Ji Han, Bo Zhang, Shuai Zhou, Cheng-Zhe Wu, Li-Ping Liu, Xun Cui
AIMS: Gallic acid (GA) protects against myocardial ischemia-reperfusion (I/R) injury, prevents cardiac hypertrophy and fibrosis, and has anti-inflammatory activity in the heart. However, its effects in regulating atrial natriuretic peptide (ANP) secretion are unknown. The aim of this study was to determine the function of GA in regulating ANP secretion and atrial dynamics in rat atria. KEY FINDINGS: GA (0.01, 0.05, and 0.1μmol/L) significantly increased atrial ANP secretion and induced positive inotropy dose-dependently...
May 20, 2017: Life Sciences
https://www.readbyqxmd.com/read/28534698/effect-of-parathyroid-hormone-on-healing-in-osteoporotic-fractures-via-a-phospholipase-c-independent-pathway
#16
Wei-Long Li, Xiao Yu, Zhi-Ping Huang, Qing-Jiang Pang
Objective This study was performed to investigate the effect of parathyroid hormone (PTH) on healing in osteoporotic fractures via a phospholipase C (PLC)-independent pathway and explore the mechanism of PTH-mediated bone formation. Methods Ninety-six 12-week-old C57BL/6J female mice underwent bilateral ovariectomy. One month later, the lower third of the femur was fractured and the mice were treated using saline, PTH(1-28), PTH(1-34), zoledronic acid (ZA), PTH(1-28)+ZA, and PTH(1-34)+ZA. The mice were killed at weeks 2 and 4 in each group...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28529530/chai-qin-cheng-qi-decoction-and-carbachol-improve-intestinal-motility-by-regulating-protein-kinase-c-mediated-ca-2-release-in-colonic-smooth-muscle-cells-in-rats-with-acute-necrotising-pancreatitis
#17
Chen-Long Zhang, Zi-Qi Lin, Rui-Jie Luo, Xiao-Xin Zhang, Jia Guo, Wei Wu, Na Shi, Li-Hui Deng, Wei-Wei Chen, Xiao-Ying Zhang, Shameena Bharucha, Wei Huang, Robert Sutton, John A Windsor, Ping Xue, Qing Xia
Chai-Qin-Cheng-Qi decoction (CQCQD) improves intestinal motility in acute pancreatitis (AP), but the mechanism(s) require elucidation. We investigated the effects of CQCQD and carbachol, a prokinetic agent, on colonic smooth muscle cells (SMCs) in L-arginine-induced necrotising AP model in rats. In treatment groups, intragastric CQCQD (20 g/kg, 2 hourly × 3 doses) or intraperitoneal carbachol (60 μg/kg) was given 24 hours after induction of AP. Both CQCQD and carbachol decreased the severity of pancreatic and colonic histopathology (all P < 0...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28528980/phospholipase-c-%C3%AE-1-negatively-regulates-autophagy-in-colorectal-cancer-cells
#18
Makoto Shimozawa, Sakiho Anzai, Reiko Satow, Kiyoko Fukami
Colorectal cancer (CRC) is one of the leading causes of cancer-related death worldwide. Kirsten rat sarcoma viral oncogene homolog (KRAS) is frequently mutated in CRC, and KRAS mutations promote cell motility, growth, and survival. We previously revealed that the expression of phospholipase C (PLC) δ1, one of the most basal PLCs, is down-regulated in colon adenocarcinoma, and that the KRAS signaling pathway suppresses PLCδ1 expression. Although recent studies revealed that KRAS mutations activate autophagy in cancer cells, a relation between PLCδ1 and autophagy remains unclear...
May 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28521061/extracellular-camp-activates-molecular-signalling-pathways-associated-with-sperm-capacitation-in-bovines
#19
Carlos Agustín I Alonso, Claudia E Osycka-Salut, Luciana Castellano, Andreína Cesari, Nicolás Di Siervi, Adrián Mutto, Anders Johannisson, Jane M Morrell, Carlos Davio, Silvina Perez-Martinez
STUDY QUESTION: Is extracellular cAMP involved in the regulation of signalling pathways in bovine sperm capacitation? SUMMARY ANSWER: Extracellular cAMP-induced sperm capacitation through the activation of different signalling pathways that involve phospholipase C (PLC), PKC/ERK1-2 signalling and an increase in sperm Ca2+ levels, as well as soluble AC and cAMP/protein kinase A (PKA) signalling. WHAT IS KNOWN ALREADY: In order to fertilize the oocyte, ejaculated spermatozoa must undergo a series of changes in the female reproductive tract, known as capacitation...
May 18, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28516374/role-of-lps-elicited-signaling-in-triggering-gastric-mucosal-inflammatory-responses-to-h-pylori-modulatory-effect-of-ghrelin
#20
REVIEW
B L Slomiany, A Slomiany
Infection with Helicobacter pylori is a primary culprit in the etiology of gastric disease, and its cell-wall lipopolysaccharide (LPS) is recognized as a potent endotoxin responsible for triggering a pattern of the mucosal inflammatory responses. The engagement by the LPS of gastric mucosal Toll-like receptor 4 (TLR4) leads to initiation of signal transduction events characterized by the activation of mitogen-activated protein kinase (MAPK) cascade, induction of phosphoinositide-specific phospholipase C (PLC)/protein kinase C (PKC)/phosphatidylinositol 3-kinase (PI3K) pathway, and up-regulation in Src/Akt...
May 17, 2017: Inflammopharmacology
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