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Cytochrome c oxidase

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https://www.readbyqxmd.com/read/28533084/gene-flow-and-genetic-drift-contribute-to-high-genetic-diversity-with-low-phylogeographical-structure-in-european-hoopoes-upupa-epops
#1
Erjia Wang, Rien E Van Wijk, Markus Santhosh Braun, Michael Wink
The Hoopoe (Upupa epops epops) breeds widely in Eurasia and most populations migrate to Africa during the boreal winter. To date, data regarding its phylogeography in Europe are missing. In this study, we investigated the phylogeography and population genetics of Hoopoes by means of mitochondrial DNA (mtDNA) sequencing as well as microsatellite genotyping. Our analyses revealed 32 haplotypes in the cytochrome c oxidase subunit I (COI) (269 individuals) and 50 haplotypes in cytochrome b (cyt b) (233 individuals)...
May 19, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28532810/species-level-identification-of-coagulase-negative-staphylococcus-spp-from-buffalo-using-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry-and-cydb-real-time-quantitative-pcr
#2
Lucas J L Pizauro, Camila C de Almeida, Glenn A Soltes, Durda Slavic, Oswaldo D Rossi-Junior, Fernando A de Ávila, Luiz F Zafalon, Janet I MacInnes
Incorrect identification of Staphylococcus spp. can have serious clinical and zoonotic repercussions. Accordingly, the aim of this study was to determine if matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) and/or cydB real- time quantitative PCR (qPCR) could be used to accurately identify coagulase negative Staphylococcus spp. (CoNS) obtained from buffalo milk and milking environment samples. Seventy-five of 84 CoNS isolates could be identified to the species level (score value >1...
May 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28532532/global-phylogenetic-relationships-population-structure-and-gene-flow-estimation-of-trialeurodes-vaporariorum-greenhouse-whitefly
#3
J M Wainaina, P De Barro, L Kubatko, M A Kehoe, J Harvey, D Karanja, L M Boykin
Trialeurodes vaporariorum (Westwood, 1856) (Greenhouse whitefly) is an agricultural pest of global importance. It is associated with damage to plants during feeding and subsequent virus transmission. Yet, global phylogenetic relationships, population structure, and estimation of the rates of gene flow within this whitefly species remain largely unexplored. In this study, we obtained and filtered 227 GenBank records of mitochondrial cytochrome c oxidase I (mtCOI) sequences of T. vaporariorum, across various global locations to obtain a final set of 217 GenBank records...
May 23, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28529047/bezafibrate-prevents-mitochondrial-dysfunction-antioxidant-system-disturbance-glial-reactivity-and-neuronal-damage-induced-by-sulfite-administration-in-striatum-of-rats-implications-for-a-possible-therapeutic-strategy-for-sulfite-oxidase-deficiency
#4
Mateus Grings, Alana Pimentel Moura, Belisa Parmeggiani, Julia Tauna Pletsch, Gabriela Miranda Fernandez Cardoso, Pauline Maciel August, Cristiane Matté, Angela T S Wyse, Moacir Wajner, Guilhian Leipnitz
Sulfite accumulates in tissues of patients affected by sulfite oxidase (SO) deficiency, a neurometabolic disease characterized by seizures and progressive encephalopathy, often resulting in early death. We investigated the effects of sulfite on mitochondrial function, antioxidant system, glial reactivity and neuronal damage in rat striatum, as well as the potential protective effects of bezafibrate on sulfite-induced toxicity. Thirty-day-old rats were intrastriatally administered with sulfite (2μmol) or NaCl (2μmol; control) and euthanized 30min after injection for evaluation of biochemical parameters and western blotting, or 7days after injection for analysis of glial reactivity and neuronal damage...
May 18, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28527112/inhalation-of-roman-chamomile-essential-oil-attenuates-depressive-like-behaviors-in-wistar-kyoto-rats
#5
Yingying Kong, Ting Wang, Rong Wang, Yichuan Ma, Shanshan Song, Juan Liu, Weiwei Hu, Shengtian Li
The idea of aromatherapy, using essential oils, has been considered as an alternative antidepressant treatment. In the present study, we investigated the effect of Roman chamomile essential oil inhalation for two weeks on depressive-like behaviors in Wistar-Kyoto (WKY) rats. We found that inhalation of either Roman chamomile or one of its main components α-pinene, attenuated depressive-like behavior in WKY rats in the forced swim test. Using isobaric tags for relative and absolute quantitation analysis (iTRAQ), we found that inhalation of α-pinene increased expression of proteins that are involved in oxidative phosphorylation, such as cytochrome c oxidase subunit 6C-2, cytochrome c oxidase subunit 7A2, ATPase inhibitor in the hippocampus, and cytochrome c oxidase subunit 6C-2, ATP synthase subunit e, Acyl carrier protein, and Cytochrome b-c1 complex subunit 6 in the PFC (prefrontal cortex)...
May 16, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28526935/diabetes-induced-abnormalities-of-mitochondrial-function-in-rat-brain-cortex-the-effect-of-n-3-fatty-acid-diet
#6
Maria Chomova, Maria Balazova, Jana Muchova
Diabetic encephalopathy, a proven complication of diabetes is associated with gradually developing end-organ damage in the CNS increasing the risk of stroke, cognitive dysfunction or Alzheimer's disease. This study investigated the response of rat cortical mitochondria to streptozotocin-induced diabetes and the potential for fish oil emulsion (FOE) to modulate mitochondrial function. Diabetes-induced deregulation of the respiratory chain function as a result of diminished complex I activity (CI) and cytochrome c oxidase hyperactivity was associated with attenuation of antioxidant defense of isolated cortical mitochondria, monitored by SOD activity, the thiol content, the dityrosine and protein-lipid peroxidation adduct formation...
May 19, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28523488/morphological-and-molecular-evidence-for-a-new-species-of-pseudanisakis-layman-borovkova-1926-nematoda-ascaridida-parasitizing-rajiformes-in-southern-southwest-atlantic-waters
#7
Manuel M Irigoitia, Paola E Braicovich, Marisa D Farber, Juan T Timi
Pseudanisakis argentinensis n. sp. is proposed to accommodate parasitic nematodes found in six skate species (Rajidae and Arhynchobatidae) examined from southern Southwest Atlantic waters. The new species differs from its congeners by the following combination of characters: a cupola on each lip, males with 8-12 pairs of precloacal genital papillae, a larger size for both males and females, a greater length-to-breadth ratio of the ventriculus and the presence of a small knob on the tip of the tail. Allometric growth was observed for several morphometric features; however, the slopes of the allometric relationships across host species exhibited non-significant differences and were considered as a strong evidence for conspecificity...
May 18, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28522681/endothelial-nox1-oxidase-assembly-in-human-pulmonary-arterial-hypertension-driver-of-gremlin1-mediated-proliferation
#8
Imad Al Ghouleh, Sanghamitra Sahoo, Daniel N Meijles, Jefferson H Amaral, Daniel S de Jesus, John Sembrat, Mauricio Rojas, Dmitry A Goncharov, Elena A Goncharova, Patrick J Pagano
Background: Pulmonary arterial hypertension (PAH) is a rapidly degenerating and devastating disease of increased pulmonary vessel resistance leading to right heart failure. Palliative modalities remain limited despite recent endeavors to investigate the mechanisms underlying increased pulmonary vascular resistance, i.e. aberrant vascular remodeling and occlusion. However, little is known of the molecular mechanisms responsible for endothelial proliferation, a root cause of PAH-associated vascular remodeling...
May 18, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28521807/case-report-a-novel-frameshift-mutation-in-the-mitochondrial-cytochrome-c-oxidase-ii-gene-causing-mitochondrial-disorder
#9
Laura Kytövuori, Mikko Kärppä, Hannu Tuominen, Johanna Uusimaa, Markku Saari, Reetta Hinttala, Kari Majamaa
BACKGROUND: Mitochondrial cytochrome c oxidase 2, MT-CO2, encodes one of the three subunits, which form the catalytic core of cytochrome c oxidase (COX), complex IV. Mutations in MT-CO2 are rare and the associated phenotypes are variable including nonsyndromic and syndromic forms of mitochondrial diseases. CASE PRESENTATION: We describe a 30-year-old man with cognitive decline, epilepsy, psychosis, exercise intolerance, sensorineural hearing impairment, retinitis pigmentosa, cataract and lactic acidosis...
May 18, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28514953/emergence-of-babesia-canis-in-southern-england
#10
Maria Del Mar Fernández de Marco, Luis M Hernández-Triana, L Paul Phipps, Kayleigh Hansford, E Sian Mitchell, Ben Cull, Clive S Swainsbury, Anthony R Fooks, Jolyon M Medlock, Nicholas Johnson
BACKGROUND: The United Kingdom is considered free of autochthonous transmission of canine babesiosis although cases are reported in dogs associated with recent travel abroad. During the winter months of 2015/16, a cluster of cases of disease in dogs with signs suggestive of canine babesiosis were reported in Harlow, Essex. METHODS: Babesia species were detected in dog blood samples by Giemsa staining of blood smears and by pan-piroplasm PCRs. Babesia species were also detected in extracts of tick DNA using pan-piroplasm PCRs...
May 17, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28512346/cryptic-diversity-in-the-japanese-mantis-shrimp-oratosquilla-oratoria-crustacea-squillidae-allopatric-diversification-secondary-contact-and-hybridization
#11
Jiao Cheng, Zhong-Li Sha
Mounting evidence of cryptic species in the marine realm emphasizes the necessity to thoroughly revise our current perceptions of marine biodiversity and species distributions. Here, we used mitochondrial cytochrome oxidase subunit I (mtDNA COI) and nuclear ribosomal internal transcribed spacer (nrDNA ITS) to investigate cryptic diversity and potential hybridization in the Japanese mantis shrimp Oratosquilla oratoria in the Northwestern (NW) Pacific. Both mitochondrial and nuclear gene genealogies revealed two cryptic species in this morphotaxon, which was further confirmed by extensive population-level analyses...
May 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28512212/correction-for-khalimonchuk-et-al-formation-of-the-redox-cofactor-centers-during-cox1-maturation-in-yeast-cytochrome-oxidase
#12
Oleh Khalimonchuk, Megan Bestwick, Brigitte Meunier, Talina C Watts, Dennis R Winge
No abstract text is available yet for this article.
June 1, 2017: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28508835/beneficial-influence-of-ellagic-acid-on-biochemical-indexes-associated-with-experimentally-induced-colon-carcinogenesis
#13
Umesalma Syed, Sudhandiran Ganapasam
OBJECTIVE: To elucidate the key biochemical indexes associated with 1, 2-dimethylhydrazine (DMH)-induced colon carcinogenesis and the modulatory efficacy of a dietary polyphenol, ellagic acid (EA). MATERIALS AND METHODS: Wistar rats were chosen to study objective, and were divided into 4 groups; Group 1-control rats; Group 2-rats received EA (60 mg/kg body weight/day, orally); rats in Group 3-induced with DMH (20 mg/kg body weight) subcutaneously for 15 weeks; DMH-induced Group 4 rats were initiated with EA treatment...
January 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28507350/amplification-of-mitochondrial-dna-for-detection-of-plasmodiumvivax-in-balochistan
#14
Muhammad Naeem Shahwani, Samia Nisar, Abdul Aleem, Marina Panezai, Sarwat Afridi, Shaukat Iqbal Malik
OBJECTIVE: To access a new step using PCR to amplify the targeted mtDNA sequence for detecting specifically Plasmodium vivax and its co-infections, false positive and false negative results with Plasmodium falciparum. METHODS: In this study we have standardized a new technical approach in which the target mitochondrial DNA sequence (mtDNA) was amplified by using a PCR technique as a tool to detect Plasmodium spp. Species specific primers were designed to hybridize with cytochrome c oxidase gene of P...
May 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28502235/molecular-analysis-and-genetic-diversity-of-aedes-albopictus-diptera-culicidae-from-china
#15
Zhang Ruiling, Leng Peien, Wang Xuejun, Zhang Zhong
Aedes albopictus is one of the most invasive species, which can carry Dengue virus, Yellow fever virus and more than twenty arboviruses. Based on mitochondrial gene cytochrome c oxidase I (COI) and samples collected from 17 populations, we investigated the molecular character and genetic diversity of Ae. albopictus from China. Altogether, 25 haplotypes were detected, including 10 shared haplotypes and 15 private haplotypes. H1 was the dominant haplotype, which is widely distributed in 13 populations. Tajima'D value of most populations was significantly negative, demonstrating that populations experienced rapid range expansion recently...
May 13, 2017: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
https://www.readbyqxmd.com/read/28500375/first-molecular-identification-and-genetic-diversity-of-strongyloides-stercoralis-and-strongyloides-fuelleborni-in-human-communities-having-contact-with-long-tailed-macaques-in-thailand
#16
Tongjit Thanchomnang, Pewpan M Intapan, Oranuch Sanpool, Rutchanee Rodpai, Somjintana Tourtip, Sujitra Yahom, Jitsuda Kullawat, Prayong Radomyos, Chalida Thammasiri, Wanchai Maleewong
The parasitic nematodes, Strongyloides stercoralis and Strongyloides fuelleborni, can infect humans and non-human primates. We amplified and sequenced a portion of the 18S ribosomal RNA gene (rRNA) and of the mitochondrial cytochrome c oxidase subunit 1 (cox1) gene of Strongyloides from humans in the study area in Thailand, where people have frequent contact with long-tailed macaques. Fresh stool samples were obtained from 213 people and were examined using the agar plate culture method. The overall prevalence of Strongyloides infection was 8...
May 12, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28496194/zooplankton-community-profiling-in-a-eutrophic-freshwater-ecosystem-lake-tai-basin-by-dna-metabarcoding
#17
Jianghua Yang, Xiaowei Zhang, Yuwei Xie, Chao Song, Yong Zhang, Hongxia Yu, G Allen Burton
Communities of zooplankton, a critical portion of aquatic ecosystems, can be adversely affected by contamination resulting from human activities. Understanding the influence of environmental change on zooplankton communities under field-conditions is hindered by traditional labor-intensive approaches that are prone to taxonomic and enumeration mistakes. Here, metabarcoding of cytochrome c oxidase I (COI) region of mitochondrial DNA was used to characterize the genetic diversity of zooplankton. The species composition of zooplankton communities determined by metabarcoding was consistent with the results based on the traditional morphological approach...
May 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28492550/txnip-regulates-mitophagy-in-retinal-m%C3%A3-ller-cells-under-high-glucose-conditions-implications-for-diabetic-retinopathy
#18
Takhellambam Swornalata Devi, Mallika Somayajulu, Renu Anjan Kowluru, Lalit Pukhrambam Singh
Thioredoxin-interacting protein (TXNIP) is involved in oxidative stress and apoptosis in diabetic retinopathy. However, the role of TXNIP in the removal of damaged mitochondria (MT) via mitophagy, a process of macroautophagy, remains unexplored. Here we investigate the associated cellular and molecular mechanisms underlying mitophagy in retinal cells under diabetic conditions. For this, we maintained a rat Müller cell line (rMC1) under high-glucose (25 mM, HG) or low-glucose (5.5 mM, LG) condition for 5 days...
May 11, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28490636/the-cox1-carboxyl-terminal-domain-is-a-central-regulator-of-cytochrome-c-oxidase-biogenesis-in-yeast-mitochondria
#19
Rodolfo García-Villegas, Yolanda Camacho-Villasana, Miguel Ángel Shingú-Vázquez, Alfredo Cabrera-Orefice, Salvador Uribe-Carvajal, Thomas D Fox, Xochitl Pérez-Martínez
Cytochrome c oxidase (CcO) is the last electron acceptor in the respiratory chain. The CcO core is formed by mitochondrial DNA-encoded Cox1, Cox2, and Cox3 subunits. Cox1 synthesis is highly regulated; for example, if CcO assembly is blocked, Cox1 synthesis decreases. Mss51 activates translation of COX1 mRNA and interacts with Cox1 protein in high-molecular-weight complexes (COA complexes) to form the Cox1 intermediary assembly module. Thus, Mss51 coordinates both Cox1 synthesis and assembly. We previously reported that the last 15 residues of the Cox1 C-terminus regulate Cox1 synthesis by modulating an interaction of Mss51 with Cox14, another component of the COA complexes...
May 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28489460/a-preliminary-study-in-the-alterations-of-mitochondrial-respiration-in-patients-with-carbon-monoxide-poisoning-measured-in-blood-cells
#20
David H Jang, Matthew Kelly, Kevin Hardy, David S Lambert, Frances S Shofer, David M Eckmann
OBJECTIVES: Carbon monoxide (CO) is a colorless and odorless gas responsible for poisoning mortality and morbidity in the United States. At this time, there is no reliable method to predict the severity of poisoning or clinical prognosis following CO exposure. Whole blood cells, such as peripheral blood mononuclear cells (PBMCs) and platelets, have been explored for their potential use to act as sensitive biomarkers for mitochondrial dysfunction which may have a role in CO poisoning. DESIGN: The objective of this study was to measure mitochondrial respiration using intact cells obtained from patients exposed to CO as a potential biomarker for mitochondrial inhibition with results that can be obtained in a time frame useful for guiding clinical care...
July 2017: Clinical Toxicology
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