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Nutrition: Calcium
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Total 38423 results found since Jan 2013.
Regulation of mitochondrial calcium uniporter expression and calcium-dependent cell signalling by lncRNA < em > Tug1 < /em > in cardiomyocytes
Am J Physiol Cell Physiol. 2023 Sep 18. doi: 10.1152/ajpcell.00339.2023. Online ahead of print.ABSTRACTCardiomyocyte calcium homeostasis is a tightly regulated process. The mitochondrial calcium uniporter (MCU) complex can buffer elevated cytosolic Ca2+ levels and consists of pore-forming proteins including MCU, and various regulatory proteins such as mitochondrial calcium uptake proteins 1 and 2 (MICU1/2). The stoichiometry of these proteins influences the sensitivity to Ca2+ and activity of the complex. However, the factors that regulate their gene expression remain incompletely understood. Long non-coding RNAs (lncRNAs)...
Source: Am J Physiol Cell Ph... - September 18, 2023 Category: Cytology Authors: Adam J Trewin Kate L Weeks Glenn D Wadley S éverine Lamon Source Type: research
Molecular action mechanisms of two novel and selective calcium release-activated calcium channel antagonists
Int J Biol Macromol. 2023 Sep 16:126937. doi: 10.1016/j.ijbiomac.2023.126937. Online ahead of print.ABSTRACTThe prototypical calcium release-activated calcium (CRAC) channel, composed of STIM1 and Orai1, is a sought-after drug target for treating autoimmune disorders. Herein, we identified two novel and selective CRAC channel inhibitors, the indole-like compound C63368 and pyrazole core-containing compound C79413, potently and reversibly inhibiting the CRAC channel with low micromolar IC50s and sparing various off-target ion channels. These two compounds did not inhibit STIM1 activation or its coupling with Orai1, nor did ...
Source: International Journal of Biological Macromolecules - September 18, 2023 Category: Biochemistry Authors: Xiangjin Kong Feifan Wang Yan Chen Xinyao Liang Yuan Yin Hao Liu Guoqing Luo Yinping Li Songping Liang Youjun Wang Zhonghua Liu Cheng Tang Source Type: research
Green preparation of magnetic ferroferric oxide-polyvinyl alcohol-alginate coated UiO-67 nanospheres: Characterization, adsorption properties and adsorption mechanism of methylene blue
Int J Biol Macromol. 2023 Sep 16;253(Pt 3):126967. doi: 10.1016/j.ijbiomac.2023.126967. Online ahead of print.ABSTRACTIn this paper, a kind of magnetic ferric oxide/polyvinyl alcohol/calcium alginate/UiO-67 (Fe3O4/PVA/CA/UiO-67) nanospheres with homogeneous surface interconnecting structures was prepared by using macromolecular polymer polyvinyl alcohol and sodium alginate as carriers and zirconium organic skeleton as nanocrystals. The properties of magnetic nanospheres were studied by SEM, FT-IR, TGA, XRD, BET, VSM and Zeta potential. The impression of diverse temperatures, MB concentrations, interaction time, pH, and mag...
Source: International Journal of Biological Macromolecules - September 18, 2023 Category: Biochemistry Authors: Zhenyu Jing Yanhui Li Qiuju Du Xinxin Pi Yuqi Wang Shiyong Zhao Yonghui Jin Source Type: research
Role of TRPV1 in electroacupuncture-mediated signal to the primary sensory cortex during regulation of the swallowing function
CONCLUSION: The TRPV1 at CV23 after EA treatment might play a key role in mediating local blood perfusion but was not involved in transferring EA signals to the central nervous system (CNS). These findings collectively suggested that TRPV1 may be one of the important regulators involved in the mechanism of EA treatment for improving swallowing function in PSD.PMID:37718934 | DOI:10.1111/cns.14457
Source: CNS Neuroscience and Therapeutics - September 18, 2023 Category: Neuroscience Authors: Si Yuan Bo Qiu Ying Liang Bing Deng Jing Xu Xiaorong Tang Junshang Wu Sheng Zhou Zeli Li Hongzhu Li Qiuping Ye Lin Wang Shuai Cui Chunzhi Tang Wei Yi Lulu Yao Nenggui Xu Source Type: research
2023 American Heart Association Focused Update on the Management of Patients With Cardiac Arrest or Life-Threatening Toxicity Due to Poisoning: An Update to the American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care
Circulation. 2023 Sep 18. doi: 10.1161/CIR.0000000000001161. Online ahead of print.ABSTRACTIn this focused update, the American Heart Association provides updated guidance for resuscitation of patients with cardiac arrest, respiratory arrest, and refractory shock due to poisoning. Based on structured evidence reviews, guidelines are provided for the treatment of critical poisoning from benzodiazepines, β-adrenergic receptor antagonists (also known as β-blockers), L-type calcium channel antagonists (commonly called calcium channel blockers), cocaine, cyanide, digoxin and related cardiac glycosides, local anesthetics, meth...
Source: Circulation - September 18, 2023 Category: Cardiology Authors: Eric J Lavonas Peter D Akpunonu Ann M Arens Kavita M Babu Dazhe Cao Robert S Hoffman Christopher O Hoyte Maryann E Mazer-Amirshahi Andrew Stolbach Maude St-Onge Trevonne M Thompson George Sam Wang Amber V Hoover Ian R Drennan American Heart Association Source Type: research
Regulation of mitochondrial calcium uniporter expression and calcium-dependent cell signalling by lncRNA < em > Tug1 < /em > in cardiomyocytes
Am J Physiol Cell Physiol. 2023 Sep 18. doi: 10.1152/ajpcell.00339.2023. Online ahead of print.ABSTRACTCardiomyocyte calcium homeostasis is a tightly regulated process. The mitochondrial calcium uniporter (MCU) complex can buffer elevated cytosolic Ca2+ levels and consists of pore-forming proteins including MCU, and various regulatory proteins such as mitochondrial calcium uptake proteins 1 and 2 (MICU1/2). The stoichiometry of these proteins influences the sensitivity to Ca2+ and activity of the complex. However, the factors that regulate their gene expression remain incompletely understood. Long non-coding RNAs (lncRNAs)...
Source: Am J Physiol Cell Ph... - September 18, 2023 Category: Cytology Authors: Adam J Trewin Kate L Weeks Glenn D Wadley S éverine Lamon Source Type: research
Effect of oral versus parenteral vitamin D3 supplementation on nuclear factor- κB and platelet aggregation in type 2 diabetic patients
In conclusion, restoring normal levels of vitamin D is an important determinant to maintain normal platelet function and reduce inflammation. Nevertheless, further long-term studies are still needed.PMID:37721213 | DOI:10.1139/cjpp-2022-0359
Source: Canadian Journal of Physiology and Pharmacology - September 18, 2023 Category: Drugs & Pharmacology Authors: Esraa Habiba Samia Ali Yehia Ghanem Ola Sharaki Wafaa Hewedy Source Type: research
Molecular docking analysis of calcium channel blockers with ALR2 and RAGE
We report that 1, 4-dihydropyridine compounds, particularly Benidipine, bind to the active sites with good efficiency. Thus, 1,4 dihydropyridine derivatives can be considered for further confirmation in drug discovery.PMID:37720280 | PMC:PMC10504517 | DOI:10.6026/97320630019028
Source: Bioinformation - September 18, 2023 Category: Bioinformatics Authors: Samreen Kazmi Surekha Challa Malini Devi Alaparthi Indira Devi M Swetha Sudha Nagamalla Priya Ej Source Type: research
Regulation of mitochondrial calcium uniporter expression and calcium-dependent cell signalling by lncRNA < em > Tug1 < /em > in cardiomyocytes
Am J Physiol Cell Physiol. 2023 Sep 18. doi: 10.1152/ajpcell.00339.2023. Online ahead of print.ABSTRACTCardiomyocyte calcium homeostasis is a tightly regulated process. The mitochondrial calcium uniporter (MCU) complex can buffer elevated cytosolic Ca2+ levels and consists of pore-forming proteins including MCU, and various regulatory proteins such as mitochondrial calcium uptake proteins 1 and 2 (MICU1/2). The stoichiometry of these proteins influences the sensitivity to Ca2+ and activity of the complex. However, the factors that regulate their gene expression remain incompletely understood. Long non-coding RNAs (lncRNAs)...
Source: American Journal of Physiology. Cell Physiology - September 18, 2023 Category: Cytology Authors: Adam J Trewin Kate L Weeks Glenn D Wadley S éverine Lamon Source Type: research
Robust expression of the TRPC1 channel associated with photoreceptor loss in the rat retina
In this study, we examined by Western blot the expression of TRPC1 in healthy control rat retinas (Sprague-Dawley, SD) and retinas with RP (P23H-1 rats). We also analyzed its specific cellular distribution by immunofluorescence to recognize changes during neurodegeneration and to determine whether its presence is consistent with high basal calcium levels and cellular survival in degenerating retinas. We found that TRPC1 immunostaining was widely distributed across the retina in both rat strains, SD and P23H, and its expression levels significantly increased in the retinas with advanced degeneration compared to the age-cont...
Source: Experimental Eye Research - September 18, 2023 Category: Opthalmology Authors: Elena Caminos Marina Murillo-Mart ínez Mar ía García-Belando Jos é Julio Cabanes-Sanchís Juan R Martinez-Galan Source Type: research
Molecular Complex of HSIM-loaded Polymeric Nanoparticles: Potential Carriers in Osteoporosis
CONCLUSION: Bone-targeting nanoparticles incorporating functionalized simvastatin can target bone. Thus, in order to distribute simvastatin subcutaneously for the treatment of osteoporosis, the developed nanoparticles may act as a promising approach.PMID:37718521 | DOI:10.2174/1389450124666230915092910
Source: Current Drug Targets - September 18, 2023 Category: Drugs & Pharmacology Authors: Malkiet Kaur Manju Nagpal Amarjot Kaur Grewal Samrat Chauhan Chander Parkash Dora Thakur Gurjeet Singh Source Type: research
Diseases of the Coronary Microcirculation: Diagnosis and Treatment
CONCLUSION: Approximately 25% of patients with CMD have symptoms that do not respond to intensive treatment with the currently available modalities. New treatments, including interventional therapies, are being studied. Their long-term benefit remains to be assessed and compared to that of the existing methods.PMID:37721132 | DOI:10.3238/arztebl.m2023.0205
Source: Deutsches Arzteblatt International - September 18, 2023 Category: General Medicine Authors: Helen Ullrich-Daub Steffen Daub Maximilian Olschewski Thomas M ünzel Tommaso Gori Source Type: research
TORC1 mediated regulation of mitochondrial integrity and calcium ion homeostasis by Wat1/mLst8 in S. pombe
Int J Biol Macromol. 2023 Sep 15:126907. doi: 10.1016/j.ijbiomac.2023.126907. Online ahead of print.ABSTRACTThe mTOR complexes play a fundamental role in mitochondrial biogenesis and cellular homeostasis. Wat1, an ortholog of mammalian Lst8 is an important component of TOR complex and is essential for the regulation of downstream signaling. Earlier we reported the role of Wat1 in oxidative stress response. Here, we have shown that the abrogation of wat1 causes respiratory defects and mitochondrial depolarization that leads to a decrease in ATP production. The confocal and electron microscopy in wat1Δ cells revealed the fr...
Source: International Journal of Biological Macromolecules - September 17, 2023 Category: Biochemistry Authors: Simmi Anjum Swati Srivastava Lalita Panigrahi Uzair Ahmad Ansari Arun Kumar Trivedi Shakil Ahmed Source Type: research
Insight into the mechanism of nutrients removal and response regulation of denitrifying phosphorus removal system under calcium ion stress
This study investigated the effects of calcium ion (Ca2+) on the nutrients removal, nitrogen oxide (N2O) release, microbial community, and quorum sensing in DPR system. Results showed that high accumulation of Ca2+ had a significant impact on the carbon footprint of DPR system. Specifically, N2O release reached 2.11 mg/L under Ca2+ of 150 mg/L, which represented 214.93% increase compared to 0 mg/L of Ca2+. The DPR system demonstrated its adaptability to elevated Ca2+ concentrations by modifying key enzyme activities involved in nitrogen and phosphorus removal, altering the microbial community structure, and adjusting the t...
Source: Bioresource Technology - September 17, 2023 Category: Biotechnology Authors: Cheng Han Hongliang Dai Zechong Guo Guangcan Zhu Bing Li Haq Nawaz Abbasi Xingang Wang Source Type: research
