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Nutrition: Calcium

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Total 675 results found since Jan 2013.

Role of Sirtuin-1 in Neonatal Hypoxic-Ischemic Encephalopathy and Its Underlying Mechanism.
CONCLUSIONS Our findings revealed that SIRT1 may be a novel and promising therapy target for HIE treatment. PMID: 32826847 [PubMed - as supplied by publisher]
Source: Medical Science Monitor - August 23, 2020 Category: Research Tags: Med Sci Monit Source Type: research

Silencing of survivin and cyclin B1 through siRNA-loaded arginine modified calcium phosphate nanoparticles for non-small-cell lung cancer therapy
Publication date: Available online 27 August 2020Source: Colloids and Surfaces B: BiointerfacesAuthor(s): Goknur Kara, Ayhan Parlar, Melike Cokol Cakmak, Murat Cokol, Emir Baki Denkbas, Feray Bakan
Source: Colloids and Surfaces B: Biointerfaces - August 29, 2020 Category: Biochemistry Source Type: research

GPR120 regulates pancreatic polypeptide secretion from male mouse islets via PLC-mediated calcium mobilization.
In this study, GPR120-IRES-EGFP knockin (KI) mouse was generated to identify GPR120-expressing cells with enhance green fluorescence proteins (EGFP). EGFP-positive cells collected from the KI mouse islets by flow cytometry had significantly higher expression of pancreatic polypeptide (PP) evidenced by RT-qPCR. Single cell RT-PCR and immunocytochemical double staining also demonstrated the co-expression of GPR120 with PP in mouse islets. GPR120 specific agonist, TUG-891, significantly increased plasma PP levels in mice. TUG-891 significantly increased PP levels in islet medium in vitro, which was markedly attenuated by GPR1...
Source: Endocrinology - September 1, 2020 Category: Endocrinology Authors: Zhao YF, Li XC, Liang XY, Zhao YY, Xie R, Zhang LJ, Zhang XC, Chen C Tags: Endocrinology Source Type: research

RNA-activated protein kinase differentially modulates innate immune response mediated by supraphysiological concentrations of thyroid hormone.
Abstract Nuclear hormone receptor ligands are known to modulate innate immunity by dampening the immune response induced by pathogens. Here, we report that unlike other ligands, 3,3',5-triiodo-l-thyronine (T3) induced the type 1 IFN response and expression of IFN-stimulated genes (ISGs). T3 action was found to be significantly amplified at supraphysiological concentrations (SPC) and in combination with double-stranded RNA mimic polyinosinic-polycytidylic acid. Induction by T3 was due to non-genomic mechanisms involving integrin binding, calcium mobilization, and phosphatidyl-inositol 3-kinase-AKT pathways, but was...
Source: Innate Immunity - September 12, 2020 Category: Allergy & Immunology Authors: Ishaq M, Natarajan V Tags: Innate Immun Source Type: research

Calcium dobesilate mediates renal interstitial fibrosis and delay renal peritubular capillary loss through Sirt1/p53 signaling pathway.
In this study, we aimed to determine the ability of Cad to protect against renal interstitial fibrosis induced by unilateral ureteral obstruction (UUO) and identify the underlying therapeutic mechanisms of Cad during hypoxia/serum deprivation (H/SD) in human umbilical vein endothelial cells (HUVECs). A total of 36 male mice were randomly assigned into 3 groups (12 mice in each group): the Sham-operated group (Sham), the saline solution-treated UUO mice group (UUO), and the Cad administration (intragastrically) group (Cad). The mice in Cad group were administered Cad (100 mg/kg) daily by oral gavage and slaughtered on the 7...
Source: Biomedicine and pharmacotherapy = Biomedecine and pharmacotherapie - September 30, 2020 Category: Drugs & Pharmacology Authors: Wang Y, Zuo B, Wang N, Li S, Liu C, Sun D Tags: Biomed Pharmacother Source Type: research

Predisposition of Neonatal Maternal Separation to Visceral Hypersensitivity via Downregulation of Small-Conductance Calcium-Activated Potassium Channel Subtype 2 (SK2) in Mice.
Conclusions: ELS-induced visceral pain and visceral hypersensitivity are associated with the underfunction of SK2 channels in the spinal DH. PMID: 33029124 [PubMed - in process]
Source: Neural Plasticity - October 10, 2020 Category: Neurology Authors: Wu K, Gao JH, Hua R, Peng XH, Wang H, Zhang YM Tags: Neural Plast Source Type: research

PSPH induces cell autophagy and promotes cell proliferation and invasion in the hepatocellular carcinoma cell line Huh7 via the AMPK/mTOR/ULK1 signaling pathway.
In conclusion, PSPH could induce autophagy, promote proliferation and invasion, and inhibit apoptosis in HCC cell via the AMPK/mTOR/ULK1 signaling pathway. This article is protected by copyright. All rights reserved. PMID: 33079432 [PubMed - as supplied by publisher]
Source: Cell Biology International - October 20, 2020 Category: Cytology Authors: Zhang J, Wang E, Zhang L, Zhou B Tags: Cell Biol Int Source Type: research

Bioinformatics analyses show dysregulation of calcium-related genes in Angelman syndrome mouse model.
Abstract BACKGROUND: Angelman syndrome (AS) is a genetic neurodevelopmental disorder caused by the loss of function of the UBE3A protein in the brain. In a previous study, we showed that activity-dependent calcium dynamics in hippocampal CA1 pyramidal neurons of AS mice is compromised, and its normalization rescues the hippocampal-dependent deficits. Therefore, we expected that the expression profiles of calcium-related genes would be altered in AS mice hippocampi. METHODS: We analyzed mRNA sequencing data from AS model mice and WT controls in light of the newly published CaGeDB database of calcium-related ge...
Source: Neurobiology of Disease - November 16, 2020 Category: Neurology Authors: Panov J, Kaphzan H Tags: Neurobiol Dis Source Type: research

Activation of the CaR-CSE/H2S pathway confers cardioprotection against ischemia-reperfusion injury.
Abstract Ischemia-reperfusion (I/R) injury is a multifactorial process triggered when an organ is subjected to transiently reduced blood supply. The result is a cascade of pathological complications and organ damage due to the production of reactive oxygen species following reperfusion. The present study aims to evaluate the role of activated calcium-sensing receptor (CaR)-cystathionine γ-lyase (CSE)/hydrogen sulfide (H2S) pathway in I/R injury. Firstly, an I/R rat model with CSE knockout was constructed. Transthoracic echocardiography, TTC and HE staining were performed to determine the cardiac function of rats ...
Source: Experimental Cell Research - November 19, 2020 Category: Cytology Authors: Luo Y, Liu LM, Xie L, Zhao HL, Lu YK, Wu BQ, Wu ZY, Zhang ZL, Hao YL, Ou WH, Liu RS, Xu WM, Chen XH Tags: Exp Cell Res Source Type: research

GSE152317 Identification of BBOX1 as a Therapeutic Target in Triple-Negative Breast Cancer
Contributors : Jeremy M Simon ; Qing ZhangSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensTriple-negative breast cancer (TNBC) is an aggressive and highly lethal disease. Because of its heterogeneity and lack of hormone receptors or HER2 expression, targeted therapy is limited. Here, by performing a functional siRNA screening for 2-OG –dependent enzymes, we identified gamma-butyrobetaine hydroxylase 1 (BBOX1) as an essential gene for TNBC tumorigenesis. BBOX1 depletion inhibits TNBC cell growth while not affecting normal breast cells. Mechanistically, BBOX1 binds with the calcium ch...
Source: GEO: Gene Expression Omnibus - December 2, 2020 Category: Genetics & Stem Cells Tags: Expression profiling by high throughput sequencing Homo sapiens Source Type: research

Yi-Zhi-Fang-Dai Formula Exerts a Protective Effect on the Injury of Tight Junction Scaffold Proteins in Vitro and in Vivo by Mediating Autophagy through Regulation of the RAGE/CaMKK β/AMPK/mTOR Pathway.
This study aimed to explore the underlying mechanism of YZFDF in alleviating the injury of TJ proteins. We examined the impacts of YZFDF on autophagy-related proteins and the histopathology of Aβ in the APP/PS1 double-transgenic male mice. We then performed the free intracellular calcium levels [Ca2+]i analysis and the cognitive behavior test of the AD model. Our results showed that YZFDF ameliorated the injury of TJ proteins by reducing the mRNA transcription and expression of the receptor for advanced glycation end-products (RAGE), the levels of [Ca2+]i, calmodulin-dependent protein kinase β (CaMKKβ), phosphorylated A...
Source: Biological and Pharmaceutical Bulletin - December 4, 2020 Category: Drugs & Pharmacology Authors: Chan Y, Chen W, Chen Y, Lv Z, Wan W, Li Y, Zhang C Tags: Biol Pharm Bull Source Type: research

Cellular Clocks in Hyperoxia Effects on Ca2+i Regulation in Developing Human Airway Smooth Muscle.
We report that human fASM express core clock machinery (PER1, PER2, CRY1, ARNTL/BMAL1, CLOCK) that is responsive to dexamethasone and altered by O2. Disruption of the clock via siRNA-mediated PER1 or ARNTL knockdown alters store-operated calcium entry (SOCE) and [Ca2+]i response to histamine in hyperoxia. Effects of O2 on [Ca2+]i are rescued by driving expression of clock proteins, via effects on the Ca2+ channels IP3R and Orai1. These data reveal a functional fASM clock that modulates [Ca2+]i regulation, particularly in hyperoxia. Harnessing clock biology may be a novel therapeutic consideration for neonatal airway diseas...
Source: American Journal of Physiology. Lung Cellular and Molecular Physiology - January 6, 2021 Category: Cytology Authors: Bartman CM, Matveyenko A, Pabelick CM, Prakash YS Tags: Am J Physiol Lung Cell Mol Physiol Source Type: research

Platelet-derived microvesicles induce calcium oscillations and promote VSMC migration via TRPV4
Conclusions: TRPV4 participated in the calcium oscillations and VSMC migration induced by PMVs. PMVs and the related molecules might be novel therapeutic targets for vascular remodeling during vascular injury.
Source: Theranostics - January 15, 2021 Category: Molecular Biology Authors: Shan-Shan Li, Shuang Gao, Yi Chen, Han Bao, Zi-Tong Li, Qing-Ping Yao, Ji-Ting Liu, Yingxiao Wang, Ying-Xin Qi Tags: Research Paper Source Type: research

Calcium-Sensing Receptor Participates in High Glucose-Induced EndMT in Primary Human Aortic Endothelial Cells
ConclusionOur research demonstrated that HG-induced EndMT in HAECs might be mediated by CaSR and the downstream nuclear translocation of β-catenin.
Source: Frontiers in Physiology - January 15, 2021 Category: Physiology Source Type: research

TMEM16A channel upregulation in arterial smooth muscle cells produces vasoconstriction during diabetes.
Abstract The pathological involvement of anion channels in vascular dysfunction that occurs during type 2 diabetes (T2D) is unclear. Here, we tested the hypothesis that TMEM16A, a calcium (Ca2+)-activated chloride (Cl-) channel, contributes to modifications in arterial contractility during T2D. Our data indicate that T2D increased TMEM16A mRNA in arterial smooth muscle cells (myocytes) and total and surface TMEM16A protein in resistance-size arteries of mice. To examine vascular cell types in which TMEM16A expression is upregulated, we generated a tamoxifen-inducible, smooth muscle-specific TMEM16A knockout (TMEM1...
Source: American Journal of Physiology. Heart and Circulatory Physiology - January 15, 2021 Category: Physiology Authors: Leo MD, Peixoto-Neves D, Yin W, Raghavan S, Muralidharan P, Mata-Daboin A, Jaggar JH Tags: Am J Physiol Heart Circ Physiol Source Type: research