366,855 results match your criteria mitochondrial m4414t>c

Individualized blood pressure targets in the postoperative care of patients with intracerebral hemorrhage.

J Neurosurg 2021 Apr 9:1-10. Epub 2021 Apr 9.

1Neurological Intensive Care Unit, Department of Neurology, and.

Objective: Recent guidelines recommend targeting a systolic blood pressure (SBP) < 140 mm Hg in the early management of patients with spontaneous intracerebral hemorrhage (ICH). The optimal SBP targets for ICH patients after hematoma evacuation (HE) remain unclear. Here, the authors aimed to define the optimal SBP range based on multimodal neuromonitoring data. Read More

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Impact of high-intensity interval training on cardiorespiratory fitness, body composition, physical fitness, and metabolic parameters in older adults: A meta-analysis of randomized controlled trials.

Exp Gerontol 2021 Apr 6:111345. Epub 2021 Apr 6.

School of Sport Sciences, Nanjing Normal University, Nanjing, China. Electronic address:

High-intensity interval training (HIIT) can effectively increase peak oxygen consumption, body composition, physical fitness, and health-related characteristics of adults; however, its impact in the older population remains highly debated. This review and meta-analysis aimed to evaluate the effects of high-intensity interval training on cardiorespiratory fitness, body composition, physical fitness, and health-related outcomes in older adults. Four electronic databases (PubMed, Scopus, Medline, and Web of Science) were searched (until July 2020) for randomized trials comparing the effect of HIIT on physical fitness, metabolic parameters, and cardiorespiratory fitness in older adults. Read More

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Connections between endoplasmic reticulum stress-associated unfolded protein response, mitochondria, and autophagy in arsenic-induced carcinogenesis.

Semin Cancer Biol 2021 Apr 6. Epub 2021 Apr 6.

Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, 259 Mack Avenue, Detroit, MI, 48201, USA. Electronic address:

Arsenic exposure in contaminated drinking water is a global health issue, as more than 200 million people are affected globally. Arsenic has been known to cause skin, liver, lung, bladder and prostate cancers. Accordingly, it has been categorized as a group I human carcinogen by the International Agency for Research on Cancer (IARC). Read More

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PPAR-γ with its anti-fibrotic action could serve as an effective therapeutic target in T-2 toxin-induced cardiac fibrosis of rats.

Food Chem Toxicol 2021 Apr 6:112183. Epub 2021 Apr 6.

National Reference Laboratory of Veterinary Drug Residues (HZAU) and Ministry of Agriculture Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University, Wuhan, China; Ministry of Agriculture Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, China. Electronic address:

T-2 toxin, the most virulent toxin produced by the Fusarium genus, is thought to be the main cause of fatal cardiomyopathy known as Keshan disease. However, the mechanisms of T-2 toxin-induced cardiac toxicity and possible targets for its treatment remain unclear. In the present study, male Wistar rats were administered with 2 mg/kg b. Read More

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Ablation of Mto1 in zebrafish exhibited hypertrophic cardiomyopathy manifested by mitochondrion RNA maturation deficiency.

Nucleic Acids Res 2021 Apr 9. Epub 2021 Apr 9.

Division of Medical Genetics and Genomics, The Children's Hospital, Zhejiang University School of Medicine and National Clinical Research Center for Child Health, Hangzhou, Zhejiang 310058, China.

Deficient maturations of mitochondrial transcripts are linked to clinical abnormalities but their pathophysiology remains elusive. Previous investigations showed that pathogenic variants in MTO1 for the biosynthesis of τm5U of tRNAGlu, tRNAGln, tRNALys, tRNATrp and tRNALeu(UUR) were associated with hypertrophic cardiomyopathy (HCM). Using mto1 knock-out(KO) zebrafish generated by CRISPR/Cas9 system, we demonstrated the pleiotropic effects of Mto1 deficiency on mitochondrial RNA maturations. Read More

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Age-dependent impairment of disease tolerance is associated with a robust transcriptional response following RNA virus infection in Drosophila.

G3 (Bethesda) 2021 Apr 9. Epub 2021 Apr 9.

Department of Biological Sciences, University of Alabama, 300, Hackberry lane, Tuscaloosa, AL-35487, USA.

Advanced age in humans is associated with greater susceptibility to and higher mortality rates from infections, including infections with some RNA viruses. The underlying innate immune mechanisms, which represent the first line of defense against pathogens, remain incompletely understood. Drosophila melanogaster is able to mount potent and evolutionarily conserved innate immune defenses against a variety of microorganisms including viruses and serves as an excellent model organism for studying host-pathogen interactions. Read More

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Complete mitogenome of endemic plum-headed parakeet Psittacula cyanocephala - characterization and phylogenetic analysis.

PLoS One 2021 9;16(4):e0241098. Epub 2021 Apr 9.

National Avian Forensic Laboratory, Sálim Ali Centre for Ornithology and Natural History, Coimbatore, Tamil Nadu, India.

Psittacula cyanocephala is an endemic parakeet from the Indian sub-continent that is widespread in the illegal bird trade. Previous studies on Psittacula parakeets have highlighted taxonomic ambiguities, warranting studies to resolve the issues. Since the mitochondrial genome provides useful information concerning the species evolution and phylogenetics, we sequenced the complete mitogenome of P. Read More

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Novel mutualists of two species infesting in Indonesia.

Mycologia 2021 Apr 9:1-23. Epub 2021 Apr 9.

Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Private Bag X20, Pretoria, 0028, South Africa.

Several species in the complex have emerged as important pests of woody plants globally, particularly in habitats where they are invasive aliens. These beetles live in obligate symbioses with fungi in the genus . In this study, we identified spp. Read More

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Novel dilated cardiomyopathy associated to Calreticulin and Myo7A gene mutation in Usher syndrome.

ESC Heart Fail 2021 Apr 9. Epub 2021 Apr 9.

MEBIC Consortium, San Raffaele Open University and IRCCS San Raffaele Pisana, Rome, Italy.

We report a novel cardiomyopathy associated to Usher syndrome and related to combined mutation of MYO7A and Calreticulin genes. A 37-year-old man with deafness and vision impairment because of retinitis pigmentosa since childhood and a MYO7A gene mutation suggesting Usher syndrome, developed a dilated cardiomyopathy with ventricular tachyarrhythmias and recurrent syncope. At magnetic resonance cardiomyopathy was characterized by left ventricular dilatation with hypo-contractility and mitral prolapse with valve regurgitation. Read More

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Bioinformatic pipelines combining denoising and clustering tools allow for more comprehensive prokaryotic and eukaryotic metabarcoding.

Mol Ecol Resour 2021 Apr 9. Epub 2021 Apr 9.

MARBEC, Ifremer, Univ. Montpellier, IRD, CNRS, Sète, France.

Environmental DNA metabarcoding is a powerful tool for studying biodiversity. However, bioinformatic approaches need to adjust to the diversity of taxonomic compartments targeted as well as to each barcode gene specificities. We built and tested a pipeline based on read correction with DADA2 allowing analysing metabarcoding data from prokaryotic (16S) and eukaryotic (18S, COI) life compartments. Read More

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High phosphate impairs arterial endothelial function through AMPK-related pathways in mouse resistance arteries.

Acta Physiol (Oxf) 2021 Apr 20;231(4):e13595. Epub 2020 Dec 20.

Department of Physiology, School of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou, China.

Aims: In patients with renal disease, high serum phosphate shows a relationship with cardiovascular risk. We speculate that high phosphate (HP) impairs arterial vasodilation via the endothelium and explore potential underlying mechanisms.

Methods: Isolated vessel relaxation, endothelial function, glomerular filtration rate (GFR), oxidative stress status and protein expression were assessed in HP diet mice. Read More

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NLR family pyrin domain containing 3 (NLRP3) and caspase 1 (CASP1) modulation by intracellular Cl concentration.

Immunology 2021 Apr 9. Epub 2021 Apr 9.

Institute for Biomedical Research (BIOMED), Laboratory of Cellular and Molecular Biology, National Scientific and Technical Research Council (CONICET), School of Medical Sciences, Pontifical Catholic University of Argentina (UCA), Buenos Aires, Argentina.

The impairment of the cystic fibrosis transmembrane conductance regulator (CFTR) activity induces intracellular chloride (Cl ) accumulation. The anion Cl , acting as a second messenger, stimulates the secretion of interleukin-1β (IL-1β), which starts an autocrine positive feedback loop. Here we show that NLR family pyrin domain containing 3 (NLRP3) and caspase 1 (CASP1) are indirectly modulated by the intracellular Cl concentration, showing maximal expression and activity at 75 mM Cl , in the presence of the ionophores nigericin and tributyltin. Read More

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Selenium, Selenoproteins, and Heart Failure: Current Knowledge and Future Perspective.

Curr Heart Fail Rep 2021 Apr 9. Epub 2021 Apr 9.

Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.

Purpose Of Review: (Mal-)nutrition of micronutrients, like selenium, has great impact on the human heart and improper micronutrient intake was observed in 30-50% of patients with heart failure. Low selenium levels have been reported in Europe and Asia and thought to be causal for Keshan disease. Selenium is an essential micronutrient that is needed for enzymatic activity of the 25 so-called selenoproteins, which have a broad range of activities. Read More

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Chronic Demyelination and Axonal Degeneration in Multiple Sclerosis: Pathogenesis and Therapeutic Implications.

Curr Neurol Neurosci Rep 2021 Apr 9;21(6):26. Epub 2021 Apr 9.

Department of Neurology, Oregon Health and Science University, 3181S W Sam Jackson Rd L226, Portland, OR, 97239, USA.

Purpose Of Review: Multiple sclerosis (MS) is the most common demyelinating disease of the central nervous system (CNS). Inflammatory attacks in MS lead to both demyelination and axonal damage. However, due to incomplete remyelination most MS lesions remain chronically demyelinated. Read More

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New arrangement of three genera of fish tapeworms (Cestoda: Proteocephalidae) in catfishes (Siluriformes) from the Neotropical Region: taxonomic implications of molecular phylogenetic analyses.

Parasitol Res 2021 Apr 9. Epub 2021 Apr 9.

Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, Branišovská 31, 370 05, České Budějovice, Czech Republic.

Tapeworms (Cestoda: Proteocephalidae) are the dominant component of communities of intestinal parasites in pimelodid and other catfishes (Siluriformes) from South America. Even though these parasites have been studied intensively over more than one century, molecular taxonomy and phylogenetics have questioned their morphology-based classification, thus raising doubts about the systematic value of traits commonly used to circumscribe individual taxa. In the present study, members of three morphologically well-characterized genera of proteocephalids from pimelodid (Hemisorubim platyrhynchos and Sorubim lima) and auchenipterid (Ageneiosus inermis) catfishes from the Paraná or Amazon River basins were subjected to DNA sequencing of the large subunit nuclear ribosomal RNA (lsrDNA) and complete mitochondrial cytochrome c oxidase subunit I (COI). Read More

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In-frame deletion in canine PITRM1 is associated with a severe early-onset epilepsy, mitochondrial dysfunction and neurodegeneration.

Hum Genet 2021 Apr 9. Epub 2021 Apr 9.

Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland.

We investigated the clinical, genetic, and pathological characteristics of a previously unknown severe juvenile brain disorder in several litters of Parson Russel Terriers. The disease started with epileptic seizures at 6-12 weeks of age and progressed rapidly to status epilepticus and death or euthanasia. Histopathological changes at autopsy were restricted to the brain. Read More

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Augmenter of Liver Regeneration regulates cellular iron homeostatis by modulating mitochondrial transport of ATP-binding cassette B8.

Elife 2021 Apr 9;10. Epub 2021 Apr 9.

Feinberg Cardiovascular Research Institute, Northwestern University, Chicago, United States.

Chronic loss of Augmenter of Liver Regeneration (ALR) results in mitochondrial myopathy with cataracts, however, the mechanism for this disorder remains unclear. Here, we demonstrate that loss of ALR, a principal component of the MIA40/ALR protein import pathway, results in impaired cytosolic Fe/S cluster biogenesis in mammalian cells. Mechanistically, MIA40/ALR facilitates the mitochondrial import of ATP binding cassette (ABC)-B8, an inner mitochondrial membrane protein required for cytoplasmic Fe/S cluster maturation, through physical interaction with ABCB8. Read More

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[Progress in the study of pulmonary fibrosis signaling pathways caused by paraquat poisoning].

Zhonghua Wei Zhong Bing Ji Jiu Yi Xue 2021 Mar;33(3):377-380

Departmentof Emergency, Affiliated Hospital of Zunyi Medical University, Zunyi 563003, Guizhou, China. Corresponding author: Zhou Manhong, Email:

Paraquat is a quaternary ammonium herbicide, which can be distributed in lung, liver, kidney, heart, brain and other organs through blood circulation, leading to multiple organ failure, especially lung injury. Due to the lack of effective treatment methods and specific antidotes, the prognosis of most patients with paraquat poisoning is very poor. The treatment of paraquat poisoning was a big problem for emergency doctors. Read More

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The effect of delayed feeding post-hatch on caeca development in broiler chickens.

Br Poult Sci 2021 Apr 9. Epub 2021 Apr 9.

United States Department of Agriculture, Agricultural Research Service, Animal Biosciences and Biotechnology Laboratory, Beltsville, MD 20705.

Broiler chicks are frequently deprived of food up to 72 h due to uneven hatching rates, management procedures and transportation to farms. Little is known about the effect of delayed feeding due to extended hatching times on the early neonatal development of the caeca. Therefore, the objective of this study was to investigate the developmental changes and effects of a 48-h delay in feed access immediately post-hatch (PH) on the caeca. Read More

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Mitochondrial Contributions to Vascular Endothelial Dysfunction, Arterial Stiffness and Cardiovascular Diseases.

Am J Physiol Heart Circ Physiol 2021 Apr 9. Epub 2021 Apr 9.

Department of Kinesiology and Applied Physiology, University of Delaware, United States.

Cardiovascular diseases (CVD) affect 1 in 3 adults and remain the leading causes of death in America. Advancing age is the major risk factor for CVD. Recent plateaus in CVD-related mortality rates in high income countries after decades of decline highlight a critical need to identify novel therapeutic targets and strategies to mitigate and manage the risk of CVD development and progression. Read More

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Periostin promotes arterial calcification through PPARγ-related glucose metabolism reprogramming.

Am J Physiol Heart Circ Physiol 2021 Apr 9. Epub 2021 Apr 9.

Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, P.R., China.

Extracellular matrix (ECM) exerts a list of biological functions, contributing to almost 30% of the osteogenic process. Periostin is a secreted protein that can alter ECM remodeling in response to vascular injury. However, the functional role of periostin in vascular calcification has yet to be fully described. Read More

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Multidimensional flow cytometry reveals novel platelet subpopulations in response to prostacyclin.

J Thromb Haemost 2021 Apr 8. Epub 2021 Apr 8.

Discovery and Translational Science Department, Leeds Institute of Cardiovascular & Metabolic Medicine, University of Leeds, UK.

Background: Robust platelet activation leads to the generation of subpopulations characterised by differential expression of phosphatidylserine (PS). Prostacyclin (PGI ) modulates many aspects of platelet function, but its influence on platelet subpopulations is unknown.

Objectives And Methods: We used fluorescent flow cytometry coupled to multidimensional FIt-SNE analysis to examine the influence of PGI on platelet subpopulations. Read More

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HIV-1 gp120-Induced Endolysosome de-Acidification Leads to Efflux of Endolysosome Iron, and Increases in Mitochondrial Iron and Reactive Oxygen Species.

J Neuroimmune Pharmacol 2021 Apr 8. Epub 2021 Apr 8.

Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, 504 Hamline Street, Room #110, Grand Forks, ND, 58203, USA.

The HIV-1 coat protein gp120 continues to be implicated in the pathogenesis of HIV-1 associated neurocognitive disorder (HAND); a condition known to affect ~50% of people living with HIV-1 (PLWH). Autopsy brain tissues of HAND individuals display morphological changes to mitochondria and endolysosomes, and HIV-1 gp120 causes mitochondrial dysfunction including increased levels of reactive oxygen species (ROS) and de-acidification of endolysosomes. Ferrous iron is linked directly to ROS production, ferrous iron is contained in and released from endolysosomes, and PLWH have elevated iron and ROS levels. Read More

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Euploidy rates are not affected when embryos are cultured in a continuous (CCM) or sequential culture medium (SCM): a sibling oocyte study.

J Assist Reprod Genet 2021 Apr 9. Epub 2021 Apr 9.

ART Fertility Clinics, Abu Dhabi, United Arab Emirates.

Purpose: To determine if euploidy rates and embryo development differ when blastocysts are cultured in CCM or SCM.

Method: A single-center retrospective observational study was performed from September 2018 to March 2019. Patients [23-46 years] with at least four fresh mature oocytes (MII) without severe male factor infertility were included. Read More

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A potential role for mTORC1/2 in β adrenergic regulation of skeletal muscle glucose oxidation in models of intrauterine growth restriction.

Diabesity 2017 15;3(3):9-12. Epub 2017 Jul 15.

Department of Animal Science, University of Nebraska-Lincoln, NE, USA, 68583.

The epidemic of intrauterine growth restriction (IUGR) continues to be a leading cause of perinatal morbidity and mortality throughout the world. This condition has been linked to the development of metabolic health problems such as obesity, hypertension, glucose intolerance, and type 2 diabetes at all ages. Previous studies have demonstrated that IUGR fetal adaptations impair proper glucose homeostasis in part via changes in insulin responsiveness in key tissues including skeletal muscle and liver, and that these deficits persists into adulthood. Read More

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Bisphenol A Exposure Disrupts Organelle Distribution and Functions During Mouse Oocyte Maturation.

Front Cell Dev Biol 2021 23;9:661155. Epub 2021 Mar 23.

Key Laboratory of Animal Biotechnology, Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, China.

Bisphenol A (BPA) is one of the ubiquitous environmental endocrine disruptors (EEDs). Previous studies have shown that the reproduction toxicity of BPA could cause severe effects on the mammal oocytes and disturb the quality of mature oocytes. However, the toxic effects of BPA on the organelles of mouse oocytes have not been reported. Read More

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Resveratrol Derivative, Trans-3, 5, 4'-Trimethoxystilbene Sensitizes Osteosarcoma Cells to Apoptosis via ROS-Induced Caspases Activation.

Oxid Med Cell Longev 2021 25;2021:8840692. Epub 2021 Mar 25.

Institute of Advanced Diagnostic and Clinical Medicine, Zhongshan People's Hospital, Guangzhou University & Zhongshan People's Hospital Joint Biomedical Institute, 2 Sun Wen East Road, Zhongshan, Guangdong 528400, China.

Numerous studies have shown that resveratrol can induce apoptosis in cancer cells. Trans-3, 5, 4'-trimethoxystilbene (TMS), a novel derivative of resveratrol, is a more potent anticancer compound than resveratrol and can induce apoptosis in cancer cells. Herein, we examined the mechanisms involved in TMS-mediated sensitization of human osteosarcoma (143B) cells to TNF-related apoptosis-inducing ligand- (TRAIL-) induced apoptosis. Read More

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Grass Carp Reovirus VP35 Degrades MAVS Through the Autophagy Pathway to Inhibit Fish Interferon Production.

Front Immunol 2021 23;12:613145. Epub 2021 Mar 23.

Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.

Fish interferon (IFN) is a crucial cytokine for a host to resist external pathogens, conferring cells with antiviral capacity. Meanwhile, grass carp reovirus (GCRV) is a strong pathogen that causes high mortality in grass carp. Therefore, it is necessary to study the strategy used by GCRV to evade the cellular IFN response. Read More

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Genetic Evolution and Implications of the Mitochondrial Genomes of Two Newly Identified spp. in Rodents From Qinghai-Tibet Plateau.

Front Microbiol 2021 23;12:647119. Epub 2021 Mar 23.

State Key Laboratory of Veterinary Etiological Biology, National Professional Laboratory for Animal Echinococcosis, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China.

The larva of Taeniidae species can infect a wide range of mammals, causing major public health and food safety hazards worldwide. The Qinghai-Tibet Plateau (QTP), a biodiversity hotspot, is home to many species of rodents, which act as the critical intermediate hosts of many Taeniidae species. In this study, we identified two new larvae of spp. Read More

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