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Nutrition: Vitamins
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Total 289 results found since Jan 2013.
Retinoic Acid Prevents the Neuronal Damage Through the Regulation of Parvalbumin in an Ischemic Stroke Model
In conclusion, retinoic acid contributes to the preservation of neurons from ischemic stroke by controlling parvalbumin expression and apoptosis-related proteins.PMID:36245066 | DOI:10.1007/s11064-022-03769-9
Source: Neurochemical Research - October 16, 2022 Category: Neuroscience Authors: Ju-Bin Kang Dong-Ju Park Phil-Ok Koh Source Type: research
1,25(OH) < sub > 2 < /sub > D < sub > 3 < /sub > promotes the elimination of Klebsiella pneumoniae infection by inducing autophagy through the VDR-ATG16L1 pathway
CONCLUSIONS: The present study demonstrated the protective features of 1,25(OH)2D3 in macrophages against Kp infection and may provide evidence for further exploration of its potential as an adjunctive therapy agent for the treatment of bacterial infections.PMID:36174418 | DOI:10.1016/j.intimp.2022.109266
Source: International Immunopharmacology - September 29, 2022 Category: Allergy & Immunology Authors: Jinhui Tang Liwen Gu Jieyu Luo Haihua Luo Qingli Zeng Yong Jiang Source Type: research
Specific activation of hypoxia-inducible factor-2 α by propionate metabolism via a β-oxidation-like pathway stimulates MUC2 production in intestinal goblet cells
In this study, we investigated the mechanism of MUC2 expression by propionate, an SCFA, in intestinal goblet cells. The real time oxygen consumption rate (OCR) and ATPase activity were measured to investigate the induction of hypoxia by propionate. Using 2-dimensional electrophoresis (2-DE), microarray analysis, and siRNA-induced gene silencing, we found that propionate is metabolized via a β-oxidation-like pathway instead of the vitamin B12-dependent carboxylation pathway (also known as the methylmalonyl pathway). We verified the results by analyzing several intermediates in the pathway using LC-MS and GC-MS. Propionate ...
Source: Biomedicine and pharmacotherapy = Biomedecine and pharmacotherapie - September 12, 2022 Category: Drugs & Pharmacology Authors: Seongho Ma Jiah Yeom Young-Hee Lim Source Type: research
Viruses, Vol. 14, Pages 2004: Human Cytomegalovirus Induces Vitamin-D Resistance In Vitro by Dysregulating the Transcriptional Repressor Snail
In this study, we aimed to elucidate the mechanism and possible biological consequences of vitamin-D resistance during HCMV infection. Mechanistically, HCMV induced vitamin-D resistance by downregulating the vitamin-D receptor (VDR) within hours of lytic infection. We found that the VDR was inhibited at the promoter level, and treatment with histone deacetylase inhibitors could restore VDR expression. VDR downregulation highly correlated with the upregulation of the transcriptional repressor Snail1, a mechanism likely contributing to the epigenetic inactivation of the VDR promoter, since siRNA-mediated knockdown of Snail p...
Source: Viruses - September 10, 2022 Category: Virology Authors: Carmen Stecher Katharina Philomena Maurer Marie-Theres Kastner Christoph Steininger Tags: Article Source Type: research
Aberrant endothelial expression of hnRNPC1/C2 and VDR and reduced maternal vitamin D levels in women with preeclampsia
J Steroid Biochem Mol Biol. 2022 Jul 19:106155. doi: 10.1016/j.jsbmb.2022.106155. Online ahead of print.ABSTRACTVitamin D deficiency is a widespread health problem globally and vitamin D deficiency/ insufficiency in pregnancy is a risk factor for preeclampsia, a hypertensive disorder in human pregnancy. Vitamin D elicits its biological effects through binding to its receptor VDR. In the present study, we determined maternal vascular expression of VDR and hnRNPC1/C2, a native repressor of VDR, in subcutaneous adipose tissue from women with normal pregnancy and preeclampsia. Maternal antenatal and postnatal vitamin D levels ...
Source: Mol Biol Cell - July 22, 2022 Category: Molecular Biology Authors: Yang Gu Shuai Lin John A Morgan David F Lewis Yuping Wang Source Type: research
622 Regulation of XPC binding dynamics and global nucleotide excision repair by p63 and vitamin D receptor
p63 and the vitamin D receptor (VDR) play important roles in epidermal development and differentiation, but their roles and relationship in the response to ultraviolet (UV) radiation are unclear. Using TERT-immortalized human keratinocytes expressing shRNA targeting p63 in concert with exogenously applied siRNA targeting VDR, we assessed p63 and VDR ’s separate and combined effect on nucleotide excision repair (NER) of UV-induced 6-4 photoproducts (6-4PP) with a focus on the XPC DNA damage recognition protein.
Source: Journal of Investigative Dermatology - July 20, 2022 Category: Dermatology Authors: C. Wong, D.H. Oh Source Type: research
Molecules, Vol. 27, Pages 4377: Tetrazine-Induced Bioorthogonal Activation of Vitamin E-Modified siRNA for Gene Silencing
Xinjing Tang
The temporal activation of siRNA provides a valuable strategy for the regulation of siRNA activity and conditional gene silencing. The bioorthogonal bond-cleavage reaction of benzonorbonadiene and tetrazine is a promising trigger in siRNA temporal activation. Here, we developed a new method for the bio-orthogonal chemical activation of siRNA based on the tetrazine-induced bond-cleavage reaction. Small-molecule activatable caged siRNAs were developed with the 5&prime;-vitamin E-benzonobonadiene-modified antisense strand targeting the green fluorescent protein (GFP) gene and the mitotic kinesin-5 ...
Source: Molecules - July 8, 2022 Category: Chemistry Authors: Xueli Zhang Amu Gubu Jianfei Xu Ning Yan Wenbo Su Di Feng Qian Wang Xinjing Tang Tags: Article Source Type: research
VDR promotes nucleus pulposus cell mitophagy as a protective mechanism against oxidative stress injury
This study demonstrates that VDR activation ameliorates oxidative damage and decreases NP cell apoptosis by promoting PINK1/Parkin-dependent mitophagy, indicating that VDR may serve as a promising therapeutic target in the management of IDD.PMID:35786375 | DOI:10.1080/10715762.2022.2094791
Source: Free Radical Research - July 5, 2022 Category: Research Authors: Tao Lan Bin Yan Weizhuang Guo Zhe Shen Jianting Chen Source Type: research
