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Total 656 results found since Jan 2013.
ZnT8 Exerts Anti-apoptosis of Kidney Tubular Epithelial Cell in Diabetic Kidney Disease Through TNFAIP3-NF- κB Signal Pathways
Biol Trace Elem Res. 2022 Jul 23. doi: 10.1007/s12011-022-03361-w. Online ahead of print.ABSTRACTApoptosis of kidney tubular epithelial cells contributes to diabetic kidney disease (DKD) pathophysiology, but the mechanisms are not fully understood. Zinc transporter protein member 8 (ZnT8, SLC30A8) is a susceptive gene in diabetes. Here, we aim to investigate whether ZnT8 has effects on pathophysiology of DKD. The animal groups include control, ZnT8KO mice, STZ-induced, and ZnT8-KO-STZ. STZ-induced DKD was performed in male C57BL/6 J mice and in ZnT8-KO mice. High glucose (HG)-induced apoptosis in a normal rat kidney tubula...
Source: Biological Trace Element Research - July 23, 2022 Category: Biology Authors: Yinmao Chi Xiuli Zhang Dan Liang Yue Wang Xiaoyi Cai Jiqiu Dong Lingzhi Li Zhihong Chi Source Type: research
Correction: The < i > Aedes aegypti < /i > siRNA pathway mediates broad-spectrum defense against human pathogenic viruses and modulates antibacterial and antifungal defenses
by The PLOS Biology Staff
Source: PLoS Biology: Archived Table of Contents - July 7, 2022 Category: Biology Authors: The PLOS Biology Staff Source Type: research
A novel synthetic peptide SVHRSP attenuates dopaminergic neurodegeneration by inhibiting NADPH oxidase-mediated neuroinflammation in experimental models of Parkinson's disease
This study was conducted to explore the protective effects of SVHRSP, a synthetic heat-resistant peptide derived from scorpion venom, against dopaminergic neurodegeneration in experimental models of PD. Results showed that SVHRSP dose-dependently reduced the loss of dopaminergic neuron in the nigrostriatal pathway and motor impairments in both rotenone and 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine/probenecid (MPTP/p)-induced mouse PD models. Microglial activation and imbalance of M1/M2 polarization were also abrogated by SVHRSP in both models. In rotenone-treated primary midbrain neuron-glial cultures, loss of dopaminer...
Source: Free Radical Biology and Medicine - June 27, 2022 Category: Biology Authors: Xiaomeng Zhang Dezhen Tu Sheng Li Na Li Donglai Li Yun Gao Lu Tian Jianing Liu Xuan Zhang Jau-Shyong Hong Liyan Hou Jie Zhao Qingshan Wang Source Type: research
HIF-1 α Mediates Arsenic-Induced Metabolic Reprogramming in Lung Bronchial Epithelial Cells
Biol Trace Elem Res. 2022 Jun 17. doi: 10.1007/s12011-022-03315-2. Online ahead of print.ABSTRACTArsenic is a common environmental pollutant that can cause damage to multiple systems and organs in the body. The lungs are particularly sensitive to arsenic exposure, and respiratory disease is thought to be the leading cause of death from arsenic poisoning. Our previous study found that human bronchial epithelial (HBE) cells treated with NaAsO2 exhibited mitochondrial dysfunction accompanied by elevated HIF-1α; however, the molecular mechanism was unclear. The aim of the current study was to confirm the role of HIF-1α in ar...
Source: Biological Trace Element Research - June 17, 2022 Category: Biology Authors: Wenjuan Wang Aihua Zhang Source Type: research
New mechanism of nephrotoxicity of triptolide: Oxidative stress promotes cGAS-STING signaling pathway
In this study, we show that triptolide activated the cGAS-STING signaling pathway in kidney tubular cells in vivo and in vitro. Renal injury models were established in BALB/c mice and human tubular epithelial cells using TPL. We found that TPL enhanced the phosphorylation levels of STING, TBK1 and IRF3, and upregulated the expression of IFNβ, which is the production of cGAS-STING signaling pathway. STING inhibitor C176 had protective effects in TPL-induced nephrocyte damage. STING siRNA down regulated the expression level of IFNβ. In addition, triptolide induced an increase in protein levels of the transcription factor B...
Source: Free Radical Biology and Medicine - June 13, 2022 Category: Biology Authors: Jun Lu Yi Zhang Huiyue Dong Jingjing Sun Ling Zhu Pengyang Liu Fuli Wen Rong Lin Source Type: research
SIRT1 exerts anti-hypertensive effect via FOXO1 activation in the rostral ventrolateral medulla
Free Radic Biol Med. 2022 Jun 7:S0891-5849(22)00223-4. doi: 10.1016/j.freeradbiomed.2022.06.003. Online ahead of print.ABSTRACTThe rostral ventrolateral medulla (RVLM) is a pivotal region in the central regulation of blood pressure (BP). It has been documented that silent information regulator 2 homolog 1 (SIRT1), a nicotinamide adenine dinucleotide (NAD+)-dependent multifunctional transcription regulatory factor, has many cardiovascular protective effects. However, the role and significance of SIRT1 in the central regulation of cardiovascular activity, especially in RVLM, remains unknown. Therefore, the aim of this study ...
Source: Free Radical Biology and Medicine - June 10, 2022 Category: Biology Authors: Chang-Zhen Ren Zhao-Tang Wu Wen Wang Xing Tan Ya-Hong Yang Yang-Kai Wang Miao-Ling Li Wei-Zhong Wang Source Type: research
The < i > Aedes aegypti < /i > siRNA pathway mediates broad-spectrum defense against human pathogenic viruses and modulates antibacterial and antifungal defenses
by Yuemei Dong, Shengzhang Dong, Nahid Borhani Dizaji, Natalie Rutkowski, Tyler Pohlenz, Kevin Myles, George Dimopoulos
The mosquito’s innate immune system defends against a variety of pathogens, and the conserved siRNA pathway plays a central role in the control of viral infections. Here, we show that transgenic overexpression of Dicer2 (Dcr2) orR2d2 resulted in an accumulation of 21-nucleotide viral sequences that was accompanied by a significant suppression of dengue virus (DENV), Zika virus (ZIKV), and chikungunya virus (CHIKV) replication, thus indicating the broad-spectrum antiviral response mediated by the siRNA ...
Source: PLoS Biology: Archived Table of Contents - June 9, 2022 Category: Biology Authors: Yuemei Dong Source Type: research
Irisin protects against sepsis-associated encephalopathy by suppressing ferroptosis via activation of the Nrf2/GPX4 signal axis
In conclusion, irisin could ameliorate inflammatory microenvironment in SAE by suppressing hippocampus ferroptosis via the Nrf2/GPX4 signaling pathway.PMID:35660523 | DOI:10.1016/j.freeradbiomed.2022.05.023
Source: Free Radical Biology and Medicine - June 6, 2022 Category: Biology Authors: Jin Wang Qian Zhu Yun Wang Jun Peng Liang Shao Xinyi Li Source Type: research
