keyword
MENU ▼
Read by QxMD icon Read
search

Mitochondrial disease

keyword
https://www.readbyqxmd.com/read/28822986/insights-in-pathogenesis-of-multiple-sclerosis-nitric-oxide-may-induce-mitochondrial-dysfunction-of-oligodendrocytes
#1
Minghong Lan, Xiaoyi Tang, Jie Zhang, Zhongxiang Yao
Demyelinating diseases, such as multiple sclerosis (MS), are kinds of common diseases in the central nervous system (CNS), and originated from myelin loss and axonal damage. Oligodendrocyte dysfunction is the direct reason of demyelinating lesions in the CNS. Nitric oxide (NO) plays an important role in the pathological process of demyelinating diseases. Although the neurotoxicity of NO is more likely mediated by peroxynitrite rather than NO itself, NO can impair oligodendrocyte energy metabolism through mediating the damaging of mitochondrial DNA, mitochondrial membrane and mitochondrial respiratory chain complexes...
August 21, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/28822855/tetrandrine-cardioprotection-in-ischemia-reperfusion-i-r-injury-via-jak3-stat3-hexokinase-ii
#2
Tie-Jun Zhang, Rui-Xia Guo, Xia Li, Yan-Wei Wang, Yong-Jun Li
Tetrandrine(TET), a bisbenzylisoquinoline alkaloid has been used for the treatment of cardiovascular diseases and hypertension. This study was to investigate whether tetrandrine exerts cardioprotection in ischemia-reperfusion (I/R) injury and the mechanisms involved. The cardioprotection effect and mechanisms of tetrandrine was evaluated by I/R injury cardiac cell model. Hexokinase II (HKII) is the critical regulators of mitochondrial dysfunction in cardiac I/R injury and it participate in the regulation of glycolysis and energy metabolism...
August 16, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28822233/obese-fathers-lead-to-an-altered-metabolism-and-obesity-in-their-children-in-adulthood-review-of-experimental-and-human-studies
#3
REVIEW
Fernanda Ornellas, Priscila V Carapeto, Carlos A Mandarim-de-Lacerda, Marcia B Aguila
OBJECTIVE: To discuss the recent literature on paternal obesity, focusing on the possible mechanisms of transmission of the phenotypes from the father to the children. SOURCES: A non-systematic review in the PubMed database found few publications in which paternal obesity was implicated in the adverse transmission of characteristics to offspring. Specific articles on epigenetics were also evaluated. As the subject is recent and still controversial, all articles were considered regardless of year of publication...
August 16, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/28822073/isorhynchophylline-attenuates-mpp-induced-apoptosis-through-endoplasmic-reticulum-stress-and-mitochondria-dependent-pathways-in-pc12-cells-involvement-of-antioxidant-activity
#4
Xiao-Ming Li, Xiao-Jie Zhang, Miao-Xian Dong
Endoplasmic reticulum stress (ERS) and mitochondrial dysfunctions are thought to be involved in the dopaminergic neuronal death in Parkinson's disease (PD). In this study, we found that isorhynchophylline (IRN) significantly attenuated 1-methyl-4-phenylpyridinium (MPP(+))-induced apoptotic cell death and oxidative stress in PC12 cells. IRN markedly reduced MPP(+)-induced-ERS responses, indicative of inositol-requiring enzyme 1 (IRE1) phosphorylation and caspase-12 activation. Furthermore, IRN inhibits MPP(+)-triggered apoptosis signal-regulating kinase 1 (ASK1)/c-Jun N-terminal Kinase (JNK) signaling-mediated mitochondria-dependent apoptosis pathway...
August 18, 2017: Neuromolecular Medicine
https://www.readbyqxmd.com/read/28821228/sg-adviser-mtdna-a-web-server-for-mitochondrial-dna-annotation-with-data-from-200-samples-of-a-healthy-aging-cohort
#5
Manuel Rueda, Ali Torkamani
BACKGROUND: Whole genome and exome sequencing usually include reads containing mitochondrial DNA (mtDNA). Yet, state-of-the-art pipelines and services for human nuclear genome variant calling and annotation do not handle mitochondrial genome data appropriately. As a consequence, any researcher desiring to add mtDNA variant analysis to their investigations is forced to explore the literature for mtDNA pipelines, evaluate them, and implement their own instance of the desired tool. This task is far from trivial, and can be prohibitive for non-bioinformaticians...
August 18, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28821011/the-photodynamic-action-of-pheophorbide-a-induces-cell-death-through-oxidative-stress-in-leishmania-amazonensis
#6
Nathielle Miranda, Hélito Volpato, Jean Henrique da Silva Rodrigues, Wilker Caetano, Tânia Ueda-Nakamura, Sueli de Oliveira Silva, Celso Vataru Nakamura
Leishmaniasis is a disease caused by hemoflagellate protozoa, affecting millions of people worldwide. The difficulties of treating patients with this parasitosis include the limited efficacy and many side effects of the currently available drugs. Therefore, the search for new compounds with leishmanicidal action is necessary. Photodynamic therapy has been studied in the medical field because of its selectivity, utilizing a combination of visible light, a photosensitizer compound, and singlet oxygen to reach the area of treatment...
August 11, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28820965/systematic-identification-of-mcu-modulators-by-orthogonal-interspecies-chemical-screening
#7
Daniela M Arduino, Jennifer Wettmarshausen, Horia Vais, Paloma Navas-Navarro, Yiming Cheng, Anja Leimpek, Zhongming Ma, Alba Delrio-Lorenzo, Andrea Giordano, Cecilia Garcia-Perez, Guillaume Médard, Bernhard Kuster, Javier García-Sancho, Dejana Mokranjac, J Kevin Foskett, M Teresa Alonso, Fabiana Perocchi
The mitochondrial calcium uniporter complex is essential for calcium (Ca(2+)) uptake into mitochondria of all mammalian tissues, where it regulates bioenergetics, cell death, and Ca(2+) signal transduction. Despite its involvement in several human diseases, we currently lack pharmacological agents for targeting uniporter activity. Here we introduce a high-throughput assay that selects for human MCU-specific small-molecule modulators in primary drug screens. Using isolated yeast mitochondria, reconstituted with human MCU, its essential regulator EMRE, and aequorin, and exploiting a D-lactate- and mannitol/sucrose-based bioenergetic shunt that greatly minimizes false-positive hits, we identify mitoxantrone out of more than 600 clinically approved drugs as a direct selective inhibitor of human MCU...
August 17, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28819888/paraquat-induced-movement-disorder-in-relation-to-oxidative-stress-mediated-neurodegeneration-in-the-brain-of-drosophila-melanogaster
#8
S Niveditha, S R Ramesh, T Shivanandappa
Exposure to pesticides like paraquat (PQ) is considered as a risk factor for Parkinson's disease (PD). PQ has been shown to induce PD-like phenotype in experimental animals. Drosophila, a valuable laboratory model organism, is widely used to study neurodegenerative disorders including PD. The acute (single dose) PQ model of PD in Drosophila is associated with high mortality as well as reversibility of locomotor deficits and, therefore, does not replicate the disease phenotype. We have investigated the relevance of the acute and multiple (sublethal) dose of PQ to induce PD-like symptoms in Drosophila and shown that multiple-dose of PQ induces irreversible locomotor impairment without significant mortality...
August 18, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28819865/melatonin-mitochondria-and-the-metabolic-syndrome
#9
REVIEW
Daniel P Cardinali, Daniel E Vigo
A number of risk factors for cardiovascular disease including hyperinsulinemia, glucose intolerance, dyslipidemia, obesity, and elevated blood pressure are collectively known as metabolic syndrome (MS). Since mitochondrial activity is modulated by the availability of energy in cells, the disruption of key regulators of metabolism in MS not only affects the activity of mitochondria but also their dynamics and turnover. Therefore, a link of MS with mitochondrial dysfunction has been suspected since long. As a chronobiotic/cytoprotective agent, melatonin has a special place in prevention and treatment of MS...
August 17, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28819639/antioxidant-treatment-in-male-mice-prevents-mitochondrial-and-synaptic-changes-in-an-nmda-receptor-dysfunction-model-of-schizophrenia
#10
Aarron Phensy, Christopher Driskill, Karen Lindquist, Lan Guo, Vivek Jeevakumar, Bryan Fowler, Heng Du, Sven Kroener
Glutamate theories of schizophrenia suggest that the disease is associated with a loss of NMDA receptors, specifically on GABAergic parvalbumin-expressing interneurons (PVIs), leading to changes in the excitation-inhibition balance in the prefrontal cortex (PFC). Oxidative stress contributes to the loss of PVI and the development of schizophrenia. Here, we investigated whether the glutathione precursor N-acetyl cysteine (NAC) can prevent changes in synaptic transmission at pyramidal cells and PVIs that result from developmental NMDAR blockade and how these changes are related to mitochondrial dysfunction in the PFCs of mice...
July 2017: ENeuro
https://www.readbyqxmd.com/read/28819135/ribosomal-transcription-is-regulated-by-pgc-1alpha-and-disturbed-in-huntington-s-disease
#11
Sarah Jesse, Hanna Bayer, Marius C Alupei, Martina Zügel, Medhanie Mulaw, Francesca Tuorto, Silke Malmsheimer, Karmveer Singh, Jürgen Steinacker, Uwe Schumann, Albert C Ludolph, Karin Scharffetter-Kochanek, Anke Witting, Patrick Weydt, Sebastian Iben
PGC-1α is a versatile inducer of mitochondrial biogenesis and responsive to the changing energy demands of the cell. As mitochondrial ATP production requires proteins that derive from translation products of cytosolic ribosomes, we asked whether PGC-1α directly takes part in ribosomal biogenesis. Here, we show that a fraction of cellular PGC-1α localizes to the nucleolus, the site of ribosomal transcription by RNA polymerase I. Upon activation PGC-1α associates with the ribosomal DNA and boosts recruitment of RNA polymerase I and UBF to the rDNA promoter...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819074/-molecular-pathogenesis-of-polyglutamine-diseases
#12
Yuji Takahashi
Polyglutamine diseases result from gain-of-function mutations. The expanded polyglutamine tracts lead to conformational changes in proteins, resulting in their aggregation. The intermediates including monomers or oligomers, are more toxic than the aggregates to neurons. At the molecular level, protein misfolding, transcriptional dysregulation, deranged calcium homeostasis, impaired cytoskeleton/axonal transport, mitochondrial dysfunction, and RNA toxicity contribute to disease progression. Understanding the underlying pathogenesis facilitates development of therapy for polyglutamine diseases...
August 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/28819044/the-parkinson-s-disease-associated-protein-dj-1-plays-a-positive-nonmitochondrial-role-in-endocytosis-in-dictyostelium-cells
#13
Suwei Chen, Sarah J Annesley, Rasha A F Jasim, Vanessa J Musco, Oana Sanislav, Paul R Fisher
The loss of function of DJ-1 caused by mutations of DJ-1 causes a form of familial Parkinson's Disease (PD). However, the role of DJ-1 in healthy and in PD cells is poorly understood. Even its subcellular localization in mammalian cells is uncertain, both cytosolic and mitochondrial locations having been reported. We show here that DJ-1 is normally located in the cytoplasm in healthy Dictyostelium discoideum cells. With its unique life cycle, straightforward genotype-phenotype relationships, experimental accesibility and genetic tractability, Dictyostelium discoideum offers an attractive model to investigate the roles of PD-associated genes...
August 17, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28818649/sequence-analysis-of-mtdna-coi-barcode-region-revealed-three-haplotypes-within-culex-pipiens-assemblage
#14
Mona Koosha, Mohammad Ali Oshaghi, Mohammad Mehdi Sedaghat, Hassan Vatandoost, Shahyad Azari-Hamidian, Mohammad Reza Abai, Ahmad Ali Hanafi-Bojd, Fatemeh Mohtarami
Members of the Culex (Culex) pipiens assemblage are known vectors of deadly encephalitides, periodic filariasis, and West Nile virus throughout the world. However, members of this assemblage are morphologically indistinguishable or hard to distinguish and play distinct roles in transmission of the diseases. The current study aimed to provide further evidence on utility of the two most popular nuclear (ITS2-rDNA) and mitochondrial (COI barcode region) genetic markers to identify members of the assemblage. Culex pipiens assemblage specimens from different climate zones of Iran were collected and identified to species level based on morphological characteristics...
August 14, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28818596/cardiometabolic-phenotypes-and-mitochondrial-dna-copy-number-in-two-cohorts-of-uk-women
#15
Anna L Guyatt, Kimberley Burrows, Philip A I Guthrie, Sue Ring, Wendy McArdle, Ian N M Day, Raimondo Ascione, Debbie A Lawlor, Tom R Gaunt, Santiago Rodriguez
The mitochondrial genome is present at variable copy number between individuals. Mitochondria are vulnerable to oxidative stress, and their dysfunction may be associated with cardiovascular disease. The association of mitochondrial DNA copy number with cardiometabolic risk factors (lipids, glycaemic traits, inflammatory markers, anthropometry and blood pressure) was assessed in two independent cohorts of European origin women, one in whom outcomes were measured at mean (SD) age 30 (4.3) years (N=2278) and the second at 69...
August 14, 2017: Mitochondrion
https://www.readbyqxmd.com/read/28818358/black-toenail-sign-in-melas-syndrome
#16
Matthew T Whitehead, Michael Wien, Bonmyong Lee, Nancy Bass, Andrea Gropman
BACKGROUND: Mitochondrial encephalopathy with lactic acidosis and stroke-like episodes (MELAS) syndrome is a mitochondrial disorder often causing progressive brain injury that is not confined to large arterial territories. Severe insults ultimately lead to gyral necrosis affecting the cortex and juxtacortical white matter; the neuroimaging correlate is partial gyral signal suppression on T2/FLAIR sequences that resemble black toenails. We aimed to characterize the imaging features and the natural history of MELAS-related gyral necrosis...
July 12, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28817659/resveratrol-improves-alcoholic-fatty-liver-disease-by-downregulating-hif-1%C3%AE-expression-and-mitochondrial-ros-production
#17
Zhenhua Ma, Yangmin Zhang, Qingchun Li, Meng Xu, Jigang Bai, Shengli Wu
Oxidative stress has been demonstrated to be involved in the etiology of alcoholic fatty liver disease (AFLD). Previous studies had demonstrated that resveratrol (RES) could reduce oxidative stress by different mechanisms. However, the effect of RES on alcohol-induced fatty liver remains unclear. In the present study, a total of 48 male SD rats were divided into three groups: Control, AFLD, and RES groups. Rats were administered with either nothing or 65% vol/vol alcohol (5 ml/kg/day in the first three days, and then 10 ml/kg/day in the following days) with or without RES supplementation (250 mg/kg/day) for 4 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28817209/huntington-s-disease-a-clinical-review
#18
Peter McColgan, Sarah J Tabrizi
Huntington's disease (HD) is a fully penetrant neurodegenerative disease caused by a dominantly inherited CAG trinucleotide repeat expansion in the huntingtin gene on chromosome 4. In Western populations HD has a prevalence of 10.6-13.7 individuals per 100,000. It is characterised by cognitive, motor and psychiatric disturbance. At the cellular level mutant huntingtin results in neuronal dysfunction and death through a number of mechanisms, including disruption of proteostasis, transcription and mitochondrial function and direct toxicity of the mutant protein...
August 17, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28817120/the-erythropoietin-derived-peptide-mk-x-and-erythropoietin-have-neuroprotective-effects-against-ischemic-brain-damage
#19
Seung-Jun Yoo, Bongki Cho, Deokho Lee, Gowoon Son, Yeong-Bae Lee, Hyung Soo Han, Eunjoo Kim, Chanil Moon, Cheil Moon
Erythropoietin (EPO) has been well known as a hematopoietic cytokine over the past decades. However, recent reports have demonstrated that EPO plays a neuroprotective role in the central nervous system, and EPO has been considered as a therapeutic target in neurodegenerative diseases such as ischemic stroke. Despite the neuroprotective effect of EPO, clinical trials have shown its unexpected side effects, including undesirable proliferative effects such as erythropoiesis and tumor growth. Therefore, the development of EPO analogs that would confer neuroprotection without adverse effects has been attempted...
August 17, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28816208/pm2-5-exposure-elicits-oxidative-stress-responses-and-mitochondrial-apoptosis-pathway-activation-in-hacat-keratinocytes
#20
Rong Hu, Xiao-Yuan Xie, Si-Ka Xu, Ya-Ning Wang, Ming Jiang, Li-Rong Wen, Wei Lai, Lei Guan
BACKGROUND: PM2.5 (aerodynamic diameter ≤ 2.5 μm) is a dominant and ubiquitous air pollutant that has become a global concern as PM2.5 exposure has been linked to many adverse health effects including cardiovascular and pulmonary diseases. Emerging evidence supports a correlation between increased air PM2.5 levels and skin disorders although reports on the underlying pathophysiological mechanisms are limited. Oxidative stress is the most common mechanism of PM2.5-induced adverse health effects...
August 14, 2017: Chinese Medical Journal
keyword
keyword
20488
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"