keyword
MENU ▼
Read by QxMD icon Read
search

Nrf1

keyword
https://www.readbyqxmd.com/read/28336261/methane-rescues-retinal-ganglion-cells-and-limits-retinal-mitochondrial-dysfunction-following-optic-nerve-crush
#1
Ruobing Wang, Qinglei Sun, Fangzhou Xia, Zeli Chen, Jiangchun Wu, Yuelu Zhang, Jiajun Xu, Lin Liu
Secondary degeneration is a common event in traumatic central nervous system disorders, which involves neuronal apoptosis and mitochondrial dysfunction. Exogenous methane exerts the therapeutic effects in many organ injury. Our study aims to investigate the potential neuroprotection of methane in a rat model of optic nerve crush (ONC). Adult male Sprague-Dawley rats were subjected to ONC and administrated intraperitoneally with methane-saturated or normal saline (10 ml/kg) once per day for one week after ONC...
March 20, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28301064/mitochondrial-biogenesis-in-neurodegeneration
#2
REVIEW
P Andy Li, Xiaolin Hou, Shaocai Hao
Mitochondria play a key role in energy production, calcium homeostasis, cell survival, and death. Adverse stimulations including neurodegenerative diseases may result in mitochondrial dynamic imbalance, free radical production, calcium accumulation, intrinsic cell death pathway activation and eventually cell death. Therefore, preserving or promoting mitochondrial function is a potential therapeutic target for the treatment of neurodegenerative disorders. Mitochondrial biogenesis is a process by which new mitochondria are produced from existing mitochondria...
March 16, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28292876/maternal-exercise-upregulates-mitochondrial-gene-expression-and-increases-enzyme-activity-of-fetal-mouse-hearts
#3
Eunhee Chung, Hayli E Joiner, Tracer Skelton, Kalli D Looten, Maria Manczak, P Hemachandra Reddy
Maternal exercise during pregnancy has been shown to improve the long-term health of offspring in later life. Mitochondria are important organelles for maintaining adequate heart function, and mitochondrial dysfunction is linked to cardiovascular disease. However, the effects of maternal exercise during pregnancy on mitochondrial biogenesis in hearts are not well understood. Thus, the purpose of this study was to test the hypothesis that mitochondrial gene expression in fetal myocardium would be upregulated by maternal exercise...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28285998/a-non-cell-autonomous-role-of-bec-1-becn1-beclin1-in-coordinating-cell-cycle-progression-and-stem-cell-proliferation-during-germline-development
#4
Kristina Ames, Dayse S Da Cunha, Brenda Gonzalez, Marina Konta, Feng Lin, Gabriel Shechter, Lev Starikov, Sara Wong, Hannes E Bülow, Alicia Meléndez
The decision of stem cells to proliferate and differentiate is finely controlled. The Caenorhabditis elegans germline provides a tractable system for studying the mechanisms that control stem cell proliferation and homeostasis [1-4]. Autophagy is a conserved cellular recycling process crucial for cellular homeostasis in many different contexts [5], but its function in germline stem cell proliferation remains poorly understood. Here, we describe a function for autophagy in germline stem cell proliferation. We found that autophagy genes such as bec-1/BECN1/Beclin1, atg-16...
March 20, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28257939/cold-exposure-induces-the-acquisition-of-brown-adipocyte-gene-expression-profiles-in-cattle-inguinal-fat-normalized-with-a-new-set-of-reference-genes-for-qrt-pcr
#5
K X Cao, D Hao, J Wang, W W Peng, Y J Yan, H X Cao, F Sun, H Chen
The last few years have seen great advances in our understanding of browning in white adipose tissue (WAT) where white adipocytes take on characteristics of brown adipocytes. At present, the economic significance of browning for animal husbandry is beginning to be realized with the emerging evidence that browning affects body weight not only in human and rodent but in farm animals. Quantitative RT-PCR provides a quick and sensitive way to preliminary determine browning of WAT. However, there have been no established condition specific reference genes for browning of cattle WAT...
February 24, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28255277/sirtuin-3-is-required-for-osteogenic-differentiation-through-maintenance-of-pgc-1%C3%A9-sod2-mediated-regulation-of-mitochondrial-function
#6
Yong Ding, Hongmei Yang, Yucai Wang, Jun Chen, Zhenwei Ji, Honghui Sun
Osteogenic differentiation is crucial for the maintenance of bone homeostasis. Sirtuin 3 (SIRT3), a member of sirtuins family, functions as a critical deacetylase that regulates many key proteins. In the current study, we aimed to clarify the role of SIRT3 in osteogenic differentiation and the possible mechanisms, using mouse pre-osteoblastic MC3T3-E1 cells. Expression of SIRT3 was substantially increased in differentiated MC3T3-E1 cells. Knock down of SIRT3 significantly decreased alkaline phosphatase (ALP) staining, and mRNA expression of runt-related transcription factor 2 (Runx2) and collagen type I ɑ 1 (Col1ɑ1), and osteocalcin in differentiated MC3T3-E1 cells...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28237703/effect-of-cellular-ubiquitin-levels-on-the-regulation-of-oxidative-stress-response-and-proteasome-function-via-nrf1
#7
Donghee Lee, Kwon-Yul Ryu
The polyubiquitin genes Ubb and Ubc are upregulated under oxidative stress induced by arsenite [As(III)]. However, the role of ubiquitin (Ub) under As(III) exposure is not known in detail. In a previous study, we showed that the reduced viability observed in Ubc(-/-) mouse embryonic fibroblasts under As(III) exposure was not due to dysregulation of the Nrf2-Keap1 pathway, which prompted us to investigate another NFE2 family protein, nuclear factor erythroid 2-related factor 1 (Nrf1). In this study, we found that Ub deficiency due to Ubc knockdown in N2a cells reduced cell viability and proteasome activity under As(III) exposure...
April 1, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28220896/mitochondrial-dysregulation-secondary-to-endoplasmic-reticulum-stress-in-autosomal-dominant-tubulointerstitial-kidney-disease-umod-adtkd-umod
#8
Elisabeth Kemter, Thomas Fröhlich, Georg J Arnold, Eckhard Wolf, Rüdiger Wanke
'Autosomal dominant tubulointerstitial kidney disease - UMOD' (ADTKD-UMOD) is caused by impaired maturation and secretion of mutant uromodulin (UMOD) in thick ascending limb of Henle loop (TAL) cells, resulting in endoplasmic reticulum (ER) stress and unfolded protein response (UPR). To gain insight into pathophysiology, we analysed proteome profiles of TAL-enriched outer renal medulla samples from ADTKD-UMOD and control mice by quantitative LC-MS/MS. In total, 212 differentially abundant proteins were identified...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28178868/low-level-laser-effect-on-proliferation-migration-and-antiapoptosis-of-mesenchymal-stem-cells
#9
Kan Yin, Rongjia Zhu, Shihua Wang, Robert Chunhua Zhao
Mesenchymal stem cells (MSCs) have been proved to be an important element in cell-based therapy. Photobiomodulation used extremely low-level lasers (LLLs) to affect the behavior of cells. The effect mechanism of LLLs on MSCs from human remained to be discovered. In this study, cell viability was assessed using MTS assays and cell cycle was evaluated by fluorescence-activated cell sorting (FACS). The influence of LLLs on mitochondrial biogenesis (fission or fusion) and function (ATP, reactive oxygen species [ROS], nitric oxide [NO]) was evaluated by transmission electron microscope, FACS, quantitative real time polymerase chain reaction (q-PCR), and immunocytochemistry...
March 27, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28177717/a-systematic-upregulation-of-nuclear-and-mitochondrial-genes-is-not-present-in-the-initial-post-exercise-recovery-period-in-human-skeletal-muscle
#10
Trisha D Scribbans, Brittany A Edgett, Jacob T Bonafiglia, Brittany L Baechler, Joe Quadrilatero, Brendon J Gurd
The purpose of the current investigation was to determine if an exercise-mediated upregulation of nuclear and mitochondrial-encoded genes targeted by the transcriptional co-activator peroxisome-proliferator-activated receptor gamma co-activator-1 alpha (PGC-1α) occurs in a systematic manner following different exercise intensities in humans. Ten recreationally active males (Age: 23 ±3 yrs; VO2peak: 41.8 ±6.6 mL/kg/min) completed two acute bouts of work-matched interval exercise at ~73% (LO) and ~100% (HI) of work rate at VO2peak in a randomized cross-over design...
January 17, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28152064/nrf2-regulates-mass-accrual-and-the-antioxidant-endogenous-response-in-bone-differently-depending-on-the-sex-and-age
#11
Gretel Gisela Pellegrini, Meloney Cregor, Kevin McAndrews, Cynthya Carolina Morales, Linda Doyle McCabe, George P McCabe, Munro Peacock, David Burr, Connie Weaver, Teresita Bellido
Accumulation of reactive oxygen species (ROS) is an important pathogenic mechanism underling the loss of bone mass and strength with aging and other conditions leading to osteoporosis. The transcription factor erythroid 2-related factor2 (Nrf2) plays a central role in activating the cellular response to ROS. Here, we examined the endogenous response of bone regulated by Nrf2, and its relationship with bone mass and architecture in the male and female murine skeleton. Young (3 month-old) and old (15 month-old) Nrf2 knockout (KO) mice of either sex exhibited the expected reduction in Nrf2 mRNA expression compared to wild type (WT) littermates...
2017: PloS One
https://www.readbyqxmd.com/read/28146428/hypoxia-reduces-testosterone-synthesis-in-mouse-leydig-cells-by-inhibiting-nrf1-activated-star-expression
#12
Xueting Wang, Longlu Pan, Zhiran Zou, Dan Wang, Yapeng Lu, Zhangji Dong, Li Zhu
Male fertility disorders play a key role in half of all infertility cases. Reduction in testosterone induced by hypoxia might cause diseases in reproductive system and other organs. Hypoxic exposure caused a significant decrease of NRF1. Software analysis reported that the promoter region of steroidogenic acute regulatory protein (StAR) contained NRF1 binding sites, indicating NRF1 promoted testicular steroidogenesis. The purpose of this study is to determine NRF1 is involved in testosterone synthesis; and under hypoxia, the decrease of testosterone synthesis is caused by lower expression of NRF1...
January 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28132893/inhibition-of-the-proteasome-%C3%AE-2-site-sensitizes-triple-negative-breast-cancer-cells-to-%C3%AE-5-inhibitors-and-suppresses-nrf1-activation
#13
Emily S Weyburne, Owen M Wilkins, Zhe Sha, David A Williams, Alexandre A Pletnev, Gerjan de Bruin, Hermann S Overkleeft, Alfred L Goldberg, Michael D Cole, Alexei F Kisselev
The proteasome inhibitors carfilzomib (Cfz) and bortezomib (Btz) are used successfully to treat multiple myeloma, but have not shown clinical efficacy in solid tumors. Here we show that clinically achievable inhibition of the β5 site of the proteasome by Cfz and Btz does not result in loss of viability of triple-negative breast cancer cell lines. We use site-specific inhibitors and CRISPR-mediated genetic inactivation of β1 and β2 to demonstrate that inhibiting a second site of the proteasome, particularly the β2 site, sensitizes cell lines to Btz and Cfz in vitro and in vivo...
February 16, 2017: Cell Chemical Biology
https://www.readbyqxmd.com/read/28120943/melatonin-ameliorates-myocardial-ischemia-reperfusion-injury-in-type-1-diabetic-rats-by-preserving-mitochondrial-function-role-of-ampk-pgc-1%C3%AE-sirt3-signaling
#14
Liming Yu, Bing Gong, Weixun Duan, Chongxi Fan, Jian Zhang, Zhi Li, Xiaodong Xue, Yinli Xu, Dandan Meng, Buying Li, Meng Zhang, Bin Zhang, Zhenxiao Jin, Shiqiang Yu, Yang Yang, Huishan Wang
Enhancing mitochondrial biogenesis and reducing mitochondrial oxidative stress have emerged as crucial therapeutic strategies to ameliorate diabetic myocardial ischemia/reperfusion (MI/R) injury. Melatonin has been reported to be a safe and potent cardioprotective agent. However, its role on mitochondrial biogenesis or reactive oxygen species (ROS) production in type 1 diabetic myocardium and the underlying mechanisms remain unknown. We hypothesize that melatonin ameliorates MI/R injury in type 1 diabetic rats by preserving mitochondrial function via AMPK-PGC-1α-SIRT3 signaling pathway...
January 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28118753/protective-effects-of-leucine-on-redox-status-and-mitochondrial-related-gene-abundance-in-the-jejunum-of-intrauterine-growth-retarded-piglets-during-early-weaning-period
#15
Qiang Huang, Wen Xu, Kai-Wen Bai, Jin-Tian He, Hussain Ahmad, Le Zhou, Li-Li Zhang, Tian Wang
The aim of this study was to investigate the effects of dietary supplementation with 0.35% l-leucine on redox status and gene abundance relating to mitochondrial biogenesis and function in the jejunum of intrauterine growth-retarded (IUGR) piglets during early weaning period. According to a 2 × 2 factorial arrangement, 16 IUGR and 16 normal body weight (NBW) piglets were fed a basal diet without l-leucine supplementation or a basal diet plus 0.35% l-leucine supplementation from the age of 14 to 35 d. The results showed that compared with NBW piglets, IUGR piglets had a lower (p < 0...
April 2017: Archives of Animal Nutrition
https://www.readbyqxmd.com/read/28116391/a-rich-medium-chain-triacylglycerol-diet-benefits-adiposity-but-has-adverse-effects-on-the-markers-of-hepatic-lipogenesis-and-beta-oxidation
#16
Carolina Maria de Oliveira Chamma, Thereza Cristina Lonzetti Bargut, Carlos Alberto Mandarim-de-Lacerda, Marcia Barbosa Aguila
We investigated the increasing amounts of medium-chain triacylglycerol (MCT) in the diet on hepatic lipid metabolism. Mature C57BL/6 male mice were randomly divided into five groups (n = 10/group). The animals received their diet for 12 weeks, as a control (C group, 10% of energy from lipids); high-fat lard (HF group, isoenergetic diet, 50% of energy from lipids with lard); a mixture of lard and MCT oil (with a gradual replacement of lard by MCT: HF-MCT25%, HF-MCT75%, and HF-MCT100% groups). At euthanasia, we collected blood and dissected the liver for analyses (glucose, insulin, HOMA-IR, QUICK index, and triacylglycerol, light microscopy, western blotting, and RT-qPCR)...
February 22, 2017: Food & Function
https://www.readbyqxmd.com/read/28094792/identification-of-a-nuclear-respiratory-factor-1-recognition-motif-in-the-apolipoprotein-e-variant-apoe4-linked-to-alzheimer-s-disease
#17
Anne Urfer-Buchwalder, Roman Urfer
Alzheimer's disease affects tens of millions of people worldwide and its prevalence continues to rise. It is caused by a combination of a subject's heredity, environment, lifestyle, and medical condition. The most significant genetic risk factor for late onset Alzheimer's disease is a variant of the apolipoprotein E gene, APOE4. Here we show that the single nucleotide polymorphism rs429358 that defines APOE4 is located in a short sequence motif repeated several times within exon 4 of apolipoprotein E, reminiscent of the structure of transcriptional enhancers...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28088524/possible-roles-of-the-transcription-factor-nrf1-nfe2l1-in-neural-homeostasis-by-regulating-the-gene-expression-of-deubiquitinating-enzymes
#18
Hiroaki Taniguchi, Shota Okamuro, Misaki Koji, Tsuyoshi Waku, Kaori Kubo, Atsushi Hatanaka, Yimeng Sun, A M Masudul Azad Chowdhury, Akiyoshi Fukamizu, Akira Kobayashi
The transcription factor Nrf1 (NFE2L1) maintains protein homeostasis (proteostasis) by regulating the gene expression of proteasome subunits in response to proteasome inhibition. The deletion of the Nrf1 gene in neural stem/progenitor cells causes severe neurodegeneration due to the accumulation of ubiquitinated proteins in Purkinje cells and motor neurons (Nrf1 NKO mice). However, the molecular mechanisms governing this neurodegenerative process remain unclear. We demonstrate herein that the loss of Nrf1 leads to the reduced gene expression of the deubiquitinating enzymes (DUBs) but not proteasome subunits in Nrf1 NKO mice between P7 and P18...
January 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28078253/effects-of-eicosapentaenoic-acid-and-docosahexaenoic-acid-on-mitochondrial-dna-replication-and-pgc-1%C3%AE-gene-expression-in-c2c12-muscle-cells
#19
Mak-Soon Lee, Yoonjin Shin, Sohee Moon, Seunghae Kim, Yangha Kim
Mitochondrial biogenesis is a complex process requiring coordinated expression of nuclear and mitochondrial genomes. The peroxisome proliferator-activated receptor gamma co-activator 1-alpha (PGC-1α) is a key regulator of mitochondrial biogenesis, and it controls mitochondrial DNA (mtDNA) replication within diverse tissues, including muscle tissue. The aim of this study was to investigate the effects of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) on mtDNA copy number and PGC-1α promoter activity in C2C12 muscle cells...
December 2016: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/28068899/maternal-bmi-as-a-predictor-of-methylation-of-obesity-related-genes-in-saliva-samples-from-preschool-age-hispanic-children-at-risk-for-obesity
#20
Kathryn Tully Oelsner, Yan Guo, Sophie Bao-Chieu To, Amy L Non, Shari L Barkin
BACKGROUND: The study of epigenetic processes and mechanisms present a dynamic approach to assess complex individual variation in obesity susceptibility. However, few studies have examined epigenetic patterns in preschool-age children at-risk for obesity despite the relevance of this developmental stage to trajectories of weight gain. We hypothesized that salivary DNA methylation patterns of key obesogenic genes in Hispanic children would 1) correlate with maternal BMI and 2) allow for identification of pathways associated with children at-risk for obesity...
January 9, 2017: BMC Genomics
keyword
keyword
91373
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"