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mitochondria and cardiovascular disease

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https://www.readbyqxmd.com/read/28528298/emerging-role-of-monoamine-oxidase-as-a-therapeutic-target-for-cardiovascular-disease
#1
REVIEW
Soni Deshwal, Moises Di Sante, Fabio Di Lisa, Nina Kaludercic
In the past decade, accumulating evidence highlighted the role of monoamine oxidases (MAOs) in cardiovascular disease (CVD). MAOs are flavoenzymes located in the outer mitochondrial membrane, responsible for the degradation of neurotransmitters and biogenic amines. During this process they generate hydrogen peroxide, aldehydes and ammonia, species that can target mitochondria and induce mitochondrial dysfunction and cardiomyocyte death. Indeed, MAO inhibition affords cardioprotection in several models of CVD, such as ischemia/reperfusion, heart failure and diabetes...
May 18, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/28511953/small-conductance-ca-2-activated-k-channels-in-the-plasma-membrane-mitochondria-and-the-er-pharmacology-and-implications-in-neuronal-diseases
#2
REVIEW
Birgit Honrath, Inge Krabbendam, Carsten Culmsee, Amalia Dolga
Ca(2+)-activated K(+) (KCa) channels regulate after-hyperpolarization in many types of neurons in the central and peripheral nervous system. Small conductance Ca(2+)-activated K(+) (KCa2/SK) channels, a subfamily of KCa channels, are widely expressed in the central and peripheral nervous system, and in the cardiovascular system. Voltage-independent SK channels are activated by alterations in intracellular Ca(2+) ([Ca(2+)]i) which facilitates the opening of these channels through binding of Ca(2+) to calmodulin that is constitutively bound to the SK2 C-terminus...
May 13, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28507196/health-benefits-of-exercise
#3
Gregory N Ruegsegger, Frank W Booth
Overwhelming evidence exists that lifelong exercise is associated with a longer health span, delaying the onset of 40 chronic conditions/diseases. What is beginning to be learned is the molecular mechanisms by which exercise sustains and improves quality of life. The current review begins with two short considerations. The first short presentation concerns the effects of endurance exercise training on cardiovascular fitness, and how it relates to improved health outcomes. The second short section contemplates emerging molecular connections from endurance training to mental health...
May 15, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28493473/dysregulation-of-mitochondrial-bioenergetics-and-quality-control-by-hiv-1-tat-in-cardiomyocytes
#4
Farzaneh G Tahrir, Santhanam Shanmughapriya, Taha Mohseni Ahooyi, Tijana Knezevic, Manish K Gupta, Christopher D Kontos, Joseph M McClung, Muniswamy Madesh, Jennifer Gordon, Arthur M Feldman, Joseph Y Cheung, Kamel Khalili
Cardiovascular disease remains a leading cause of morbidity and mortality in HIV positive patients, even in those whose viral loads are well controlled with antiretroviral therapy. However, the underlying molecular events responsible for the development of cardiac disease in the setting of HIV remain unknown. The HIV encoded Tat protein plays a critical role in the activation of HIV gene expression and profoundly impacts homeostasis in both HIV infected cells and uninfected cells that have taken up released Tat via a bystander effect...
May 11, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28475111/riboflavin-responsive-mitochondrial-dysfunction-in-neurodegenerative-diseases
#5
REVIEW
Tamilarasan Udhayabanu, Andreea Manole, Mohan Rajeshwari, Perumal Varalakshmi, Henry Houlden, Balasubramaniem Ashokkumar
Mitochondria are the repository for various metabolites involved in diverse energy-generating processes, like the TCA cycle, oxidative phosphorylation, and metabolism of amino acids, fatty acids, and nucleotides, which rely significantly on flavoenzymes, such as oxidases, reductases, and dehydrogenases. Flavoenzymes are functionally dependent on biologically active flavin adenine dinucleotide (FAD) or flavin mononucleotide (FMN), which are derived from the dietary component riboflavin, a water soluble vitamin...
May 5, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28465478/chronic-obstructive-sleep-apnea-promotes-aortic-remodeling-in-canines-through-mir-145-smad3-signaling-pathway
#6
Chengyuan Yu, Yang Liu, Li Sun, Dingyu Wang, Yike Wang, Shiqi Zhao, Hui Dai, Jing Zhao, Song Zhang, Minghui Li, Yu Han, Shuang Lu, Xinwen Dong, Guangzhong Liu, Shengzhu Yu, Yue Li
Obstructive sleep apnea (OSA) is a causal pathogenetic factor of many cardiovascular diseases, however, its role in aortic diseases remains unknown. Therefore, this study was performed to explore the potential effects and pathophysiological mechanisms of chronic OSA on aortic remodeling in a canine model. After chronic OSA, the morphological changes of ascending aorta were characterized by thinner cells with pycnotic nuclei and swollen mitochondria, and obvious hyperplasia of collagenous fiber in the matrix...
April 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28461251/mitophagy-and-age-related-pathologies-development-of-new-therapeutics-by-targeting-mitochondrial-turnover
#7
REVIEW
Konstantinos Palikaras, Ioanna Daskalaki, Maria Markaki, Nektarios Tavernarakis
Mitochondria are highly dynamic and semi-autonomous organelles, essential for many fundamental cellular processes, including energy production, metabolite synthesis, ion homeostasis, lipid metabolism and initiation of apoptotic cell death. Proper mitochondrial physiology is a prerequisite for health and survival. Generation of new and removal of damaged or unwanted mitochondria are tightly controlled processes that need to be accurately coordinated for the maintenance of mitochondrial and cellular homeostasis...
April 28, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28456642/pathophysiology-of-mitochondrial-lipid-oxidation-role-of-4-hydroxynonenal-4-hne-and-other-bioactive-lipids-in-mitochondria
#8
REVIEW
Mengqing Xiao, Huiqin Zhong, Lin Xia, Yongzhen Tao, Huiyong Yin
Mitochondrial lipids are essential for maintaining the integrity of mitochondrial membranes and the proper functions of mitochondria. As the "powerhouse" of a cell, mitochondria are also the major cellular source of reactive oxygen species (ROS). Oxidative stress occurs when the antioxidant system is overwhelmed by overproduction of ROS. Polyunsaturated fatty acids in mitochondrial membranes are primary targets for ROS attack, which may lead to lipid peroxidation (LPO) and generation of reactive lipids, such as 4-hydroxynonenal...
April 26, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28447714/resveratrol-protects-against-oxidized-low%C3%A2-density-lipoprotein%C3%A2-induced-human-umbilical-vein-endothelial-cell-apoptosis-via-inhibition-of-mitochondrial%C3%A2-derived-oxidative-stress
#9
Yujie Liu, Xizhou Chen, Jie Li
Resveratrol, a natural phytochemical found in grapes and red wine, has been found to possess protective effects against endothelial cell apoptosis and oxidative damage. Oxidized‑low density lipoprotein (ox‑LDL) can induce apoptosis of endothelial cells, which is an important initial event in several cardiovascular diseases. However, the effect of resveratrol on ox‑LDL‑induced apoptosis and oxidative damage, and the possible associated mechanisms remain to be elucidated. In the present study, following exposure to ox‑LDL, human umbilical vein endothelial cells (HUVECs) were treated with or without resveratrol...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28439972/mitochondrial-biogenesis-and-pgc-1%C3%AE-gene-expression-in-male-broilers-from-ascites-susceptible-and-resistant-lines
#10
N Khodambashi Emami, A Golian, M Danesh Mesgaran, N B Anthony, D D Rhoads
Ascites is a cardiovascular metabolic disease characterized by accumulation of fluid around the heart and in the abdominal cavity that eventually leads to death. This syndrome is the end-point result of a series of metabolic incidents that are generally caused by impaired oxygen availability. Mitochondria are the major sites of oxygen consumption, therefore major contributors to oxidative stress. Genetic, metabolic and dietary factors can influence variations in mitochondrial biogenesis (mitochondrial size, number and mass) that might have an effect on oxygen consumption and reactive oxygen species production...
April 25, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28439028/bgp-15-prevents-the-death-of-neurons-in-a-mouse-model-of-familial-dysautonomia
#11
Sarah B Ohlen, Magdalena L Russell, Michael J Brownstein, Frances Lefcort
Hereditary sensory and autonomic neuropathy type III, or familial dysautonomia [FD; Online Mendelian Inheritance in Man (OMIM) 223900], affects the development and long-term viability of neurons in the peripheral nervous system (PNS) and retina. FD is caused by a point mutation in the gene IKBKAP/ELP1 that results in a tissue-specific reduction of the IKAP/ELP1 protein, a subunit of the Elongator complex. Hallmarks of the disease include vasomotor and cardiovascular instability and diminished pain and temperature sensation caused by reductions in sensory and autonomic neurons...
April 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28431562/effects-of-the-common-polymorphism-in-the-human-aldehyde-dehydrogenase-2-aldh2-gene-on-the-lung
#12
Aoi Kuroda, Ahmed E Hegab, Gao Jingtao, Shuji Yamashita, Nobuyuki Hizawa, Tohru Sakamoto, Hideyasu Yamada, Satoshi Suzuki, Makoto Ishii, Ho Namkoong, Takanori Asakura, Mari Ozaki, Hiroyuki Yasuda, Junko Hamamoto, Shizuko Kagawa, Kenzo Soejima, Tomoko Betsuyaku
BACKGROUND: Aldehyde dehydrogenases (ALDHs) play a major role in detoxification of aldehydes. High expression of ALDHs is a marker for stem cells of many organs including the lungs. A common polymorphism in ALDH2 gene (ALDH2*2) results in inactivation of the enzyme and is associated with alcohol flushing syndrome and increased risk for cardiovascular and Alzheimer's diseases and some cancers. The effect of this ALDH2 polymorphism on the lung and its stem cells has not been thoroughly examined...
April 21, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28426722/interactions-between-mitoneet-and-naf-1-in-cells
#13
Ola Karmi, Sarah H Holt, Luhua Song, Sagi Tamir, Yuting Luo, Fang Bai, Ammar Adenwalla, Merav Darash-Yahana, Yang-Sung Sohn, Patricia A Jennings, Rajeev K Azad, Jose' N Onuchic, Faruck Morcos, Rachel Nechushtai, Ron Mittler
The NEET proteins mitoNEET (mNT) and nutrient-deprivation autophagy factor-1 (NAF-1) are required for cancer cell proliferation and resistance to oxidative stress. NAF-1 and mNT are also implicated in a number of other human pathologies including diabetes, neurodegeneration and cardiovascular disease, as well as in development, differentiation and aging. Previous studies suggested that mNT and NAF-1 could function in the same pathway in mammalian cells, preventing the over-accumulation of iron and reactive oxygen species (ROS) in mitochondria...
2017: PloS One
https://www.readbyqxmd.com/read/28424375/mitochondria-a-central-target-for-sex-differences-in-pathologies
#14
REVIEW
Renée Ventura-Clapier, Maryline Moulin, Jérôme Piquereau, Christophe Lemaire, Mathias Mericskay, Vladimir Veksler, Anne Garnier
It is increasingly acknowledged that a sex and gender specificity affects the occurrence, development, and consequence of a plethora of pathologies. Mitochondria are considered as the powerhouse of the cell because they produce the majority of energy-rich phosphate bonds in the form of adenosine tri-phosphate (ATP) but they also participate in many other functions like steroid hormone synthesis, reactive oxygen species (ROS) production, ionic regulation, and cell death. Adequate cellular energy supply and survival depend on mitochondrial life cycle, a process involving mitochondrial biogenesis, dynamics, and quality control via mitophagy...
May 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28419534/endocrine-imbalance-associated-with-proteome-changes-in-diabetes
#15
Amr A Sayed, Ahmed M Alhawary, Aboalela Farag, Dina R Johar, Larry H Bernstein
The dynamics of cellular metabolism involves rapid interactions between proteins and nucleotides, proteins and proteins, proteins and mRNA, the action of miRNA, and signaling. These also involve the interactions with respect to the sulfur bond, oxygen radicals that initiate a change in conformation and a chain of events. We review a development in molecular medicine that is a very promising work in progress. We also review the current and future research methods involving mitochondria. Long-term effects of diabetes include glycation of proteins, e...
April 17, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28409855/the-mobility-of-mitochondria-intercellular-trafficking-in-health-and-disease
#16
Michael V Berridge, Jiri Neuzil
The view that genes are constrained within somatic cells is challenged by in vitro evidence, and more recently by in vivo studies which demonstrate that mitochondria with their mitochondrial DNA (mtDNA) payload not only can, but do move between cells in tumour models and in mouse models of tissue damage. Using mouse tumour cell models without mtDNA to reflect mtDNA damage, we have shown that these cells grow tumours only after acquiring mtDNA from cells in the local microenvironment resulting in respiration recovery, tumorigenesis and metastasis...
April 13, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28409390/dynamin-related-protein-1-as-potential-therapeutic-target-in-various-diseases
#17
REVIEW
Surinder Singh, Saurabh Sharma
Mitochondria can interchange morphology due to their dynamic nature. It can exist in either fragmented disconnected arrangement or elongated interconnected mitochondrial networks due to fission and fusion, respectively. The recent studies have revealed the remarkable and unexpected insights into the physiological impact and molecular regulation of mitochondrial morphology. The balance between fission and fusion governs the faith of the cell. The active targeting of DRP 1 to the outer mitochondrial membrane (OMM) is done by non-GTPase receptor proteins such as mitochondrial fission factor, mitochondrial fission protein 1 and mitochondrial elongation factor 1...
April 13, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28381226/annurca-apple-m-pumila-miller-cv-annurca-extracts-act-against-stress-and-ageing-in-s-cerevisiae-yeast-cells
#18
Mariarita Stirpe, Vanessa Palermo, Michele Maria Bianchi, Romano Silvestri, Claudio Falcone, Giancarlo Tenore, Ettore Novellino, Cristina Mazzoni
BACKGROUND: During the past years, a number of studies have demonstrated the positive effect of apple on ageing and different diseases such as cancer, degenerative and cardiovascular diseases. The unicellular yeast Saccharomyces cerevisiae represents a simple eukaryotic model to study the effects of different compounds on lifespan. We previously demonstrated that apple extracts have anti-ageing effects in this organism because of their antioxidant properties. In particular, the effect is related to the presence in this fruit of polyphenols, which give a large contribution to the antioxidant activity of apples...
April 5, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28374891/short-term-hypoxia-reverses-ox-ldl-induced-cd36-and-glut4-switching-metabolic-pathways-in-h9c2-cardiomyoblast-cells
#19
Yeh-Peng Chen, Hsi-Hsien Hsu, Rathinasamy Baskaran, Su-Ying Wen, Chia-Yao Shen, Cecilia-Hsuan Day, Tsung-Jung Ho, Viswanadha Vijaya Padma, Wei-Wen Kuo, Chih-Yang Huang
High levels of circulating low-density lipoproteins (LDL, plasma proteins that carry cholesterol and triglycerides) are associated with type 2 diabetes, arteriosclerosis, obesity and hyperlipidemia. In the heart, the accumulation of oxidized low-density lipoprotein (Ox-LDL) has been proposed to play a role in the development of cardiovascular disease. We obtain cholesterol from animals and animal-derived foods such as milk, eggs and cheese. In previous studies, the ratio of low-density lipoprotein (LDL) and high-density lipoprotein (HDL) was shown to be important for our health...
April 4, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28363602/zinc-regulates-nox1-expression-through-a-nf-%C3%AE%C2%BAb-and-mitochondrial-ros-dependent-mechanism-to-induce-senescence-of-vascular-smooth-muscle-cells
#20
G Salazar, J Huang, R G Feresin, Y Zhao, K K Griendling
AIMS: The role of oxidative stress and inflammation in the development and progression of cardiovascular diseases (CVD) is well established. Increases in oxidative stress can further exacerbate the inflammatory response and lead to cellular senescence. We previously reported that angiotensin II (Ang II) and zinc increase reactive oxygen species (ROS) and cause senescence of vascular smooth muscle cells (VSMCs) and that senescence induced by Ang II is a zinc-dependent process. Zinc stimulated NADPH oxidase (Nox) activity; however, the role of Nox isoforms in zinc effects was not determined...
March 29, 2017: Free Radical Biology & Medicine
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