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https://www.readbyqxmd.com/read/28526399/evaluation-of-the-effectiveness-of-chronic-antidepressant-drug-treatments-in-the-hippocampal-mitochondria-a-proteomic-study-in-an-animal-model-of-depression
#1
Katarzyna Głombik, Aneta Stachowicz, Ewa Trojan, Rafał Olszanecki, Joanna Ślusarczyk, Maciej Suski, Katarzyna Chamera, Bogusława Budziszewska, Władysław Lasoń, Agnieszka Basta-Kaim
Several lines of evidence indicate that adverse experience in early life may be a triggering factor for disturbances in the brain mitochondrial proteins and lead to the development of depression in adulthood. On the other hand, little is known about the impact of chronic administration of various antidepressant drugs on the brain mitochondria, as a target for the pharmacotherapy of depression. The purpose of our study was to compare the impact of chronic treatment with two antidepressant drugs with different mechanisms of action, a tricyclic antidepressant (TCA), imipramine, and an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class, fluoxetine, on the mitochondria-enriched subproteome profile in the hippocampus of 3-month-old male rats following a prenatal stress procedure (an animal model of depression)...
May 16, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28502045/a-clinical-and-molecular-genetic-study-of-50-families-with-autosomal-recessive-parkinsonism-revealed-known-and-novel-gene-mutations
#2
Shaghayegh Taghavi, Rita Chaouni, Abbas Tafakhori, Luis J Azcona, Saghar Ghasemi Firouzabadi, Mir Davood Omrani, Javad Jamshidi, Babak Emamalizadeh, Gholam Ali Shahidi, Mona Ahmadi, Seyed Amir Hassan Habibi, Azadeh Ahmadifard, Atena Fazeli, Marzieh Motallebi, Peyman Petramfar, Saeed Askarpour, Shiva Askarpour, Hossein Ali Shahmohammadibeni, Neda Shahmohammadibeni, Hajar Eftekhari, Amir Ehtesham Shafiei Zarneh, Saeed Mohammadihosseinabad, Mehdi Khorrami, Safa Najmi, Ahmad Chitsaz, Parasto Shokraeian, Hossein Ehsanbakhsh, Jalal Rezaeidian, Reza Ebrahimi Rad, Faranak Madadi, Monavvar Andarva, Elham Alehabib, Minoo Atakhorrami, Seyed Erfan Mortazavi, Zahra Azimzadeh, Mahdis Bayat, Amir Mohammad Besharati, Mohammad Ali Harati-Ghavi, Samareh Omidvari, Zahra Dehghani-Tafti, Faraz Mohammadi, Banafsheh Mohammad Hossein Pour, Hamid Noorollahi Moghaddam, Ehsan Esmaili Shandiz, Arman Habibi, Zahra Taherian-Esfahani, Hossein Darvish, Coro Paisán-Ruiz
In this study, the role of known Parkinson's disease (PD) genes was examined in families with autosomal recessive (AR) parkinsonism to assist with the differential diagnosis of PD. Some families without mutations in known genes were also subject to whole genome sequencing with the objective to identify novel parkinsonism-related genes. Families were selected from 4000 clinical files of patients with PD or parkinsonism. AR inheritance pattern, consanguinity, and a minimum of two affected individuals per family were used as inclusion criteria...
May 13, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28458339/dj-1-park7-a-new-therapeutic-target-for-neurodegenerative-disorders
#3
Masanori Hijioka, Masatoshi Inden, Daijiro Yanagisawa, Yoshihisa Kitamura
DJ-1, encoded in a causative gene of familial Parkinson's disease (PARK7), has multiple functions: it works as an antioxidant, in transcriptional regulation, as a molecular chaperone and in protein degradation. Three types of pathogenic mutants of DJ-1 (M26I, D149A and L166P) have been reported to disrupt proper structures and lead to a loss of function. DJ-1 receives oxidation at the cysteine residue, and the degree of oxidation at the C106 residue determines DJ-1 activity. In this decade, DJ-1 has been reported to suppress the progression of various neurodegenerative disorders in animal models...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28455141/identification-of-potential-therapeutic-compounds-for-parkinson-s-disease-using-drosophila-and-human-cell-models
#4
Francisco José Sanz, Cristina Solana-Manrique, Verónica Muñoz-Soriano, Pablo Calap-Quintana, María Dolores Moltó, Nuria Paricio
Parkinson's disease (PD) is the second most common neurodegenerative disorder after Alzheimer's disease. It is caused by a loss of dopaminergic neurons in the substantia nigra pars compacta, leading to a decrease in dopamine levels in the striatum and thus producing movement impairment. Major physiological causes of neurodegeneration in PD are oxidative stress (OS) and mitochondrial dysfunction; these pathophysiological changes can be caused by both genetic and environmental factors. Although most PD cases are sporadic, it has been shown that 5-10% of them are familial forms caused by mutations in certain genes...
April 25, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28446034/free-radicals-impair-the-anti-oxidative-stress-activity-of-dj-1-through-the-formation-of-sds-resistant-dimer
#5
Tatsuki Yasuda, Takeshi Niki, Hiroyoshi Ariga, Sanae M M Iguchi-Ariga
DJ-1 is a causative gene for familial Parkinson's disease (PD). Loss-of-function of DJ-1 protein is suggested to contribute to the onset of PD, but the causes of DJ-1 dysfunction remain insufficiently elucidated. In this study, we found that the SDS-resistant irreversible dimer of DJ-1 protein was formed in human dopaminergic neuroblastoma SH-SY5Y cells, when the cells were exposed to massive superoxide inducers such as paraquat and diquat. The dimer was also formed in vitro by superoxide in PQ redox cycling system and hydroxyl radical produced in Fenton reaction...
April 26, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28445716/trumping-neurodegeneration-targeting-common-pathways-regulated-by-autosomal-recessive-parkinson-s-disease-genes
#6
REVIEW
Laura Scott, Valina L Dawson, Ted M Dawson
Parkinson's disease (PD) is a neurodegenerative movement disorder characterized by the progressive loss of dopaminergic (DA) neurons. Most PD cases are sporadic; however, rare familial forms have been identified. Autosomal recessive PD (ARPD) results from mutations in Parkin, PINK1, DJ-1, and ATP13A2, while rare, atypical juvenile ARPD result from mutations in FBXO7, DNAJC6, SYNJ1, and PLA2G6. Studying these genes and their function has revealed mitochondrial quality control, protein degradation processes, and oxidative stress responses as common pathways underlying PD pathogenesis...
April 23, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28444544/methylglyoxal-detoxification-by-a-dj-1-family-protein-provides-dual-abiotic-and-biotic-stress-tolerance-in-transgenic-plants
#7
Prasad Melvin, Kondalarao Bankapalli, Patrick D'Silva, P V Shivaprasad
Methylglyoxal (MG) is a key signaling molecule resulting from glycolysis and other metabolic pathways. During abiotic stress, MG levels accumulate to toxic levels in affected cells. However, MG is routinely detoxified through the action of DJ1/PARK7/Hsp31 proteins that are highly conserved across kingdoms and mutations in such genes are associated with neurodegenerative diseases. Here, we report for the first time that, similar to abiotic stresses, MG levels increase during biotic stresses in plants, likely contributing to enhanced susceptibility to a wide range of stresses...
April 25, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28442712/cardioprotective-effects-of-cu-ii-atsm-in-human-vascular-smooth-muscle-cells-and-cardiomyocytes-mediated-by-nrf2-and-dj-1
#8
Salil Srivastava, Philip J Blower, Aisah A Aubdool, Robert C Hider, Giovanni E Mann, Richard C Siow
Cu((II))ATSM was developed as a hypoxia sensitive positron emission tomography agent. Recent reports have highlighted the neuroprotective properties of Cu((II))ATSM, yet there are no reports that it confers cardioprotection. We demonstrate that Cu((II))ATSM activates the redox-sensitive transcription factor Nrf2 in human coronary artery smooth muscle cells (HCASMC) and cardiac myocytes (HCM), leading to upregulation of antioxidant defense enzymes. Oral delivery of Cu((II))ATSM in mice induced expression of the Nrf2-regulated enzymes in the heart and aorta...
December 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28428745/decreased-levels-of-foldase-and-chaperone-proteins-are-associated-with-an-early-onset-amyotrophic-lateral-sclerosis
#9
Melania Filareti, Silvia Luotti, Laura Pasetto, Mauro Pignataro, Katia Paolella, Paolo Messina, Elisabetta Pupillo, Massimiliano Filosto, Christian Lunetta, Jessica Mandrioli, Giuseppe Fuda, Andrea Calvo, Adriano Chiò, Massimo Corbo, Caterina Bendotti, Ettore Beghi, Valentina Bonetto
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease characterized by a progressive upper and lower motor neuron degeneration. One of the peculiar clinical characteristics of ALS is the wide distribution in age of onset, which is probably caused by different combinations of intrinsic and exogenous factors. We investigated whether these modifying factors are converging into common pathogenic pathways leading either to an early or a late disease onset. This would imply the identification of phenotypic biomarkers, that can distinguish the two populations of ALS patients, and of relevant pathways to consider in a therapeutic intervention...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28409295/metal-chelator-tpen-selectively-induces-apoptosis-in-k562-cells-through-reactive-oxygen-species-signaling-mechanism-implications-for-chronic-myeloid-leukemia
#10
Luisa Rojas-Valencia, Carlos Velez-Pardo, Marlene Jimenez-Del-Rio
Chronic myeloid leukemia (CML) is a hematologic disorder characterized by the constitutive expression of BCR-ABL tyrosine kinase. Although successful implementation of tyrosine kinase inhibitors for the treatment of CML remain a traditional choice for molecularly targeted therapy, some patients present primary or secondary resistance to such therapy. Therefore, alternative therapeutic strategies are required to treat resistant CML cells. Accordingly, new anti-proliferative and/or pro-apoptotic compounds would be needed for clinical treatment...
June 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/28404768/dj-1-overexpression-restores-ischaemic-post-conditioning-mediated-cardioprotection-in-diabetic-rats-%C3%AF-role-of-autophagy
#11
Bin Zhou, Shaoqing Lei, Rui Xue, Yan Leng, Zhengyuan Xia, Zhong-Yuan Xia
IPO (Ischaemic post-conditioning) is a promising method of alleviating myocardial IR (ischaemia -reperfusion) injury; however, IPO-mediated cardioprotection is lost in diabetic hearts via mechanisms that remain largely unclear. We hypothesized that decreased cardiac expression of DJ-1, a positive modulator of autophagy, compromises the effectiveness of IPO-induced cardioprotection in diabetic rats. Diabetic rats subjected to myocardial IR (30 min of coronary artery occlusion followed by 120 min of reperfusion) exhibited more severe myocardial injury, less cardiac autophagy, lower DJ-1 expression and AMPK (adenosine monophosphate-activated protein kinase)/mTOR (mammalian target of rapamycin) pathway activity than non-diabetic rats...
April 12, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28385921/the-effects-of-physical-exercise-on-non-motor-symptoms-and-on-neuroimmune-rage-network-in-experimental-parkinsonism
#12
Sofia D Viana, Inês R Pita, Cristina Lemos, Daniel Rial, Patrícia Couceiro, Paulo Rodrigues-Santos, Francisco Caramelo, Félix Carvalho, Syed F Ali, Rui D Prediger, Carlos A Fontes Ribeiro, Frederico C Pereira
Parkinson's disease (PD) prodromic stages comprise neuropsychiatric perturbations that critically compromise patient's quality of life. These non-motor symptoms (NMS) are associated with exacerbated innate immunity, a hallmark of overt PD. Physical exercise (PE) has the potential to improve neuropsychiatric deficits and to modulate immune network including receptors for advanced glycation endproducts (RAGE) and Toll-like receptors (TLRs) in distinct pathological settings. Accordingly, the present study aimed to test the hypothesis that PE i) alleviates PD NMS and ii) modulates neuroimmune RAGE-network in experimental PD...
April 6, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28382581/the-prominent-proteins-expressed-in-healthy-gingiva-a-pilot-exploratory-tissue-proteomics-study
#13
Emre Yaprak, Murat Kasap, Gürler Akpınar, Sibel Kayaaltı-Yüksek, Alper Sinanoğlu, Nil Guzel, Husniye Demirturk Kocasarac
Gingiva is a unique tissue which protects the underlying periodontal tissues from consistent mechanical and bacterial aggressions. Molecular analysis of gingiva is likely to improve our understanding of the underlying biological processes at work. The aim of this preliminary exploratory study is to analyze the proteomic profile of healthy gingiva and to detect prominently expressed proteins. Gingival tissue samples were obtained from periodontally healthy individuals who underwent surgical crown lengthening procedure...
April 5, 2017: Odontology
https://www.readbyqxmd.com/read/28374920/the-clinical-significance-of-dj-1-and-he4-in-patients-with-endometrial-cancer
#14
Marco Benati, Martina Montagnana, Elisa Danese, Elisa Paviati, Silvia Giudici, Orazio Ruzzenente, Massimo Franchi, Giuseppe Lippi
BACKGROUND: The non-invasive diagnostic approach for early detection of endometrial cancer (EC) remains limited. To date, human epididymis protein 4 (HE4) has been intensively studied but its diagnostic is controversial in EC. DJ-1 is an oncoprotein secreted by cancer cells, recently identified as a potential diagnostic biomarker for breast cancer, melanoma, and pancreatic cancer. The aim of this study was to compare the diagnostic performances of DJ-1 and HE4 measured in EC patients and healthy controls (HC)...
April 4, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28369333/sirt3-protects-dopaminergic-neurons-from-mitochondrial-oxidative-stress
#15
Han Shi, Han-Xiang Deng, David Gius, Paul T Schumacker, D James Surmeier, Yong-Chao Ma
Age-dependent elevation in mitochondrial oxidative stress is widely posited to be a major factor underlying the loss of substantia nigra pars compacta (SNc) dopaminergic neurons in Parkinson's disease (PD). However, mechanistic links between aging and oxidative stress are not well understood. Sirtuin-3 (Sirt3) is a mitochondrial deacetylase that could mediate this connection. Indeed, genetic deletion of Sirt3 increased oxidative stress and decreased the membrane potential of mitochondria in SNc dopaminergic neurons...
May 15, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28360124/genetic-mutations-linked-to-parkinson-s-disease-differentially-control-nucleolar-activity-in-pre-symptomatic-mouse-models
#16
Valentin Evsyukov, Andrii Domanskyi, Holger Bierhoff, Suzana Gispert, Rasem Mustafa, Falk Schlaudraff, Birgit Liss, Rosanna Parlato
Genetic mutations underlying neurodegenerative disorders impair ribosomal DNA (rDNA) transcription suggesting that nucleolar dysfunction could be a novel pathomechanism in polyglutamine diseases and in certain forms of amyotrophic lateral sclerosis/frontotemporal dementia. Here, we investigated nucleolar activity in pre-symptomatic digenic models of Parkinson's disease (PD) that model the multifactorial aetiology of this disease. To this end, we analysed a novel mouse model mildly overexpressing mutant human α-synuclein (hA53T-SNCA) in a PTEN-induced kinase 1 (PINK1/PARK6) knockout background and mutant mice lacking both DJ-1 (also known as PARK7) and PINK1...
May 1, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28348719/bag5-interacts-with-dj-1-and-inhibits-the-neuroprotective-effects-of-dj-1-to-combat-mitochondrial-oxidative-damage
#17
Li-Xia Qin, Jie-Qiong Tan, Hai-Nan Zhang, Kousar Rizwana, Jia-Hong Lu, Jian-Guang Tang, Bo Jiang, Xiang-Min Shen, Ji-Feng Guo, Bei-Sha Tang, Li-Ming Tan, Chun-Yu Wang
Loss-of-function mutations in gene encoding DJ-1 contribute to the pathogenesis of autosomal recessive early-onset familial forms of Parkinson's disease (PD). DJ-1 is a multifunctional protein and plays a protective role against oxidative stress-induced mitochondrial damage and cell death, but the exact mechanism underlying this is not yet clearly understood. Here, using coimmunoprecipitation (Co-IP) and immunofluorescence methods, we prove that Bcl-2-associated athanogene 5 (BAG5), a BAG family member, interacts with DJ-1 in mammalian cells...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28336262/increased-susceptibility-to-fundus-camera-delivered-light-induced-retinal-degeneration-in-mice-deficient-in-oxidative-stress-response-proteins
#18
Yi Ding, Bogale Aredo, Xin Zhong, Cynthia X Zhao, Rafael L Ufret-Vincenty
Oxidative stress is an important contributor to the pathogenesis of many retinal diseases including age-related macular degeneration and retinal dystrophies. Light-induced retinal degeneration (LIRD) can serve as a model in which to study the response of the retina to stress. Of note, many genetic mutant mice are in a C57BL/6 J background and are thus resistant to the usual LIRD models. We recently developed a new model of fundus camera-delivered light-induced retinal degeneration (FCD-LIRD) which is effective in strains of mice expressing the light-resistant variant of RPE65 (450Met), including C57BL/6 J...
March 20, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28330770/dj-1-a-parkinson-s-disease-related-protein-aggregates-under-denaturing-conditions-and-co-aggregates-with-%C3%AE-synuclein-through-hydrophobic-interaction
#19
Min Zhu, Shivaliben H Patel, Shubo Han
BACKGROUND: DJ-1, a small ubiquitously expressed protein implicated in several pathways associated with Parkinson's disease pathogenesis, has been found to interact with α-synuclein and modulate its aggregation, yet the exact mechanisms remain unclear. METHODS: The stability and aggregation properties of wild-type DJ-1 under denaturing conditions, such as low pH, high temperature, presence of denaturants were investigated. The interaction between DJ-1 and α-synuclein was tested by SDS-PAGE gel and native gel electrophoresis and by size-exclusion HPLC...
March 18, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28289797/-epidemiology-and-causes-of-parkinson-s-disease
#20
C M Lill, C Klein
Parkinson's disease (PD) is the second most common neurodegenerative disease and has a growing socioeconomic impact due to demographic changes in the industrial nations. There are several forms of PD, a fraction of which (<5%) are monogenic, i. e. caused by mutations in single genes. At present, six genes have been established for the clinically classical form of parkinsonism including three autosomal dominantly (SNCA, LRRK2, VPS35) and three autosomal recessively inherited ones (Parkin, PINK1, DJ-1)...
April 2017: Der Nervenarzt
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