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https://www.readbyqxmd.com/read/28978409/specific-indications-and-clinical-outcome-in-patients-with-subcutaneous-icd-a-nationwide-multicentre-registry
#1
Michael Sponder, Cesar Khazen, Wolfgang Dichtl, Lukas Fiedler, Deddo Mörtl, Alexander Teubl, Clemens Steinwender, Martin Martinek, Michael Nürnberg, Daniel Dalos, Johannes Kastner, Christoph Schukro
BACKGROUND: Subcutaneous implantable cardioverter-defibrillators (S-ICD) are an innovative and less invasive alternative to transvenous ICD (TV-ICD) in selected patients. We aimed to investigate the underlying diseases and the specific indications for implanting S-ICD in clinical practice, as well as the prevalence of shock delivery and complications. METHODS AND RESULTS: From December 2012, data of 236 patients (30,5% female; age 48,6±16,8years) were gathered from 12 centres in Austria...
October 1, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28912488/gene-expression-and-methylation-analyses-suggest-dctd-as-a-prognostic-factor-in-malignant-glioma
#2
Huimin Hu, Zheng Wang, Mingyang Li, Fan Zeng, Kuanyu Wang, Ruoyu Huang, Haoyuan Wang, Fan Yang, Tingyu Liang, Hua Huang, Tao Jiang
Malignant glioma is the most common brain cancer with dismal outcomes. Individual variation of the patients' survival times is remarkable. Here, we investigated the transcriptome and promoter methylation differences between patients of malignant glioma with short (less than one year) and the patients with long (more than three years) survival in CGGA (Chinese Glioma Genome Atlas), and validated the differences in TCGA (The Cancer Genome Atlas) to identify the genes whose expression levels showed high concordance with prognosis of glioma patients, as well as played an important role in malignant progression...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28885345/long-term-effectiveness-of-the-diabetes-conversation-map-program-a-prepost-education-intervention-study-among-type-2-diabetic-patients-in-taiwan
#3
Jui-Yu Hung, Pin-Fan Chen, Hanoch Livneh, Yi-Yu Chen, How-Ran Guo, Tzung-Yi Tsai
Health education is compulsory for patients with chronic and life-threatening disease, especially for those with diabetes mellitus (DM). This study aimed to examine the long-term effectiveness of the Diabetes Conversation Map Program (DCMP) among DM patients in Taiwan.A quasi-experimental research design using convenience sampling and nonrandom group assignment was applied to recruit 95 type 2 diabetic subjects from a hospital in Taiwan. In addition to routine care, the experiment group (n = 49) received 7 sessions of DCMP that delivered over 2 months, while the control group (n = 46) received only routine care during the same period...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28835847/patient-perspectives-of-an-individualized-diabetes-care-management-plan
#4
Ashley N Saucier, Benjamin Ansa, Janis Coffin, Mariam Akhtar, Andre Miller, Holly Mahoney, Denise M Hodo, Carla Duffie, Brittney Fontenot, Holly E Andrews, Selina A Smith
PURPOSE: This cross sectional study examines patients' knowledge, attitudes and beliefs about a diabetic care management plan (DCMP) that was developed to provide patient education on diabetes guidelines and display individual diabetic core measures. Secondary objectives included a comparison of diabetic core measures [hemoglobin A1C (HbA1C), systolic and diastolic blood pressure (SBP, DBP), low-density lipoprotein (LDL) and urine microalbumin (Um)] before and after DCMP implementation...
2017: European Journal for Person Centered Healthcare
https://www.readbyqxmd.com/read/28807888/spectroscopic-and-calorimetric-assays-reveal-dependence-on-dctp-and-two-metals-zn-2-mg-2-for-enzymatic-activity-of-schistosoma-mansoni-deoxycytidylate-dcmp-deaminase
#5
Jéssica Fernandes Scortecci, Vitor Hugo Balasco Serrão, Juliana Cheleski, Juliana Roberta Torini, Larissa Romanello, Ricardo DeMarco, Humberto D'Muniz Pereira
The parasite Schistosoma mansoni possess all pathways for pyrimidine biosynthesis, whereby deaminases play an essential role in the thymidylate cycle, a crucial step to controlling the ratio between cytidine and uridine nucleotides. In this study, we heterologously expressed and purified the deoxycytidylate (dCMP) deaminase from S. mansoni to obtain structural, biochemical and kinetic information. Small-angle X-ray scattering of this enzyme showed that it is organized as a hexamer in solution. Isothermal titration calorimetry was used to determine the kinetic constants for dCMP-dUMP conversion and the role of dCTP and dTTP in enzymatic regulation...
August 12, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28747695/compounds-that-enhance-the-tailing-activity-of-moloney-murine-leukemia-virus-reverse-transcriptase
#6
Yoshiyuki Ohtsubo, Yuji Nagata, Masataka Tsuda
In a previous study, we showed that MMLV-RT has a strong terminal transferase activity, and that the C-, G-, and T-tailing activities are enhanced by dGMP, dCMP, and dAMP, respectively. In this study, to achieve faster reaction and higher tailing efficiency, we screened other compounds for the ability to enhance the tailing activities of MMLV-RT, and determined the corresponding optimal concentrations. The C-, G-, and T-tailing activities were enhanced by guanine, cytosine, and adenine, respectively, and by derivatives thereof, suggesting a transient Watson-Click base pairing between an enhancer molecule and the nucleotide to be incorporated...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28690993/2q37-deletion-syndrome-confirmed-by-high-resolution-cytogenetic-analysis
#7
Eun-Kyung Cho, Jinsup Kim, Aram Yang, Sung Yoon Cho, Dong-Kyu Jin
Chromosome 2q37 deletion syndrome is a rare chromosomal disorder characterized by mild to moderate developmental delay, brachydactyly of the third to fifth digits or toes, short stature, obesity, hypotonia, a characteristic facial appearance, and autism spectrum disorder. Here, we report on a patient with 2q37 deletion presenting with dilated cardiomyopathy (DCMP). Congenital heart malformations have been noted in up to 20% of patients with 2q37 deletions. However, DCMP has not been reported in 2q37 deletion patients previously...
June 2017: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28683825/diabetic-retinopathy-is-associated-with-diastolic-dysfunction-in-type-2-diabetic-patients-with-non-ischemic-dilated-cardiomyopathy
#8
Yoo-Ri Chung, Se-Jun Park, Ka Young Moon, Seoyoung Annie Choi, Hong-Seok Lim, Sung Wook Park, Jeong Hun Kim, Kihwang Lee
BACKGROUND: To investigate the association between diabetic retinopathy (DR) and myocardial dysfunction in patients with type 2 diabetes and dilated cardiomyopathy (dCMP). METHODS: Data were collected retrospectively from 89 patients with dCMP (46 with type 2 diabetes and 43 without diabetes) and no evidence of coronary artery disease. Echocardiographic parameters and laboratory data, including lipid profiles and fundus findings, were obtained from medical records...
July 6, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28682600/time-dependent-extension-from-an-8-oxoguanine-lesion-by-human-dna-polymerase-beta
#9
Andrew J Reed, Zucai Suo
The oxidative DNA lesion 7,8-dihydro-2'-deoxyguanine (8-oxoG) often occurs in double-stranded DNA and poses a threat to genomic integrity due to the ability of 8-oxoG to form stable Watson-Crick base pairs with deoxycytidine (8-oxoG:dC) and Hoogsteen base pairs with deoxyadenosine (8-oxoG:dA). In humans, short-patch base excision repair of 8-oxoG:dA base pairs requires human DNA polymerase β (hPolβ) to bypass 8-oxoG. Previously, we have shown hPolβ-catalyzed 8-oxoG bypass to exhibit low fidelity and identified a unique stacking interaction between the newly incorporated nucleotide (dCMP or dAMP) and the templating 8-oxoG...
July 6, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28650656/cytotoxic-and-mutagenic-properties-of-c3-epimeric-lesions-of-2-deoxyribonucleosides-in-escherichia-coli-cells
#10
Pengcheng Wang, Nicholas J Amato, Yinsheng Wang
Reactive oxygen species (ROS), resulting from endogenous metabolism and/or environmental exposure, can induce damage to the 2-deoxyribose moiety in DNA. Specifically, a hydrogen atom from each of the five carbon atoms in 2-deoxyribose can be abstracted by hydroxyl radical, and improper chemical repair of the ensuing radicals formed at the C1', C3', and C4' positions can lead to the stereochemical inversion at these sites to yield epimeric 2-deoxyribose lesions. Although ROS-induced single-nucleobase lesions have been well studied, the biological consequences of the C3'-epimeric lesions of 2'-deoxynucleosides, i...
July 25, 2017: Biochemistry
https://www.readbyqxmd.com/read/28465969/study-of-vitamin-d-status-in-patients-with-dilated-cardiomyopathy-at-a-teaching-hospital-in-north-india
#11
S Priya, Zeba Siddiqi, Ritu Karoli, Jalees Fatima, Saumya Gupta, Ritu Mishra
BACKGROUND/INTRODUCTION: Recent studies have indicated a much broader role to Vitamin D than simply the regulation of calcium metabolism alone. Vitamin D likely confers physiologically relevant pleiotropic functions that include cardioprotective and immunomodulatory effect, and its deficiency could lead to increased risk of cardiovascular disease and heart failure. AIM: The aim of our work was to evaluate the presence of hypovitaminosis D in patients with dilated cardiomyopathy (DCMP) and to study any correlation of echocardiographic parameters with Vitamin D deficiency...
July 2016: Journal of Cardiovascular Echography
https://www.readbyqxmd.com/read/28459633/identification-of-human-ump-cmp-kinase-1-as-doxorubicin-binding-target-using-protein-microarray
#12
Shuxian Chen, Xu Wang, Xianghui Ye, Donghui Ma, Caiwei Chen, Junlong Cai, Yongfeng Fu, Xunjia Cheng, Yun Chen, Xiaohai Gong, Jian Jin
Doxorubicin (DOX) is a leading anthracycline drug with exceptional efficacy; however, little is known about the molecular mechanisms of its side effects, which include heart muscle damage, noncancerous cell death, and drug resistance. A total of 17,950 human proteins expressed in HEK293 cells were screened and yielded 14 hits. Competitive and binding experiments further verified the binding of DOX to UMP/CMP kinase 1 (CMPK1), and microscale thermophoresis showed that DOX binds to CMPK1 with a Kd of 1216 nM...
September 2017: SLAS Discovery
https://www.readbyqxmd.com/read/28416670/alterations-in-cellular-metabolism-triggered-by-ura7-or-gln3-inactivation-cause-imbalanced-dntp-pools-and-increased-mutagenesis
#13
Tobias T Schmidt, Gloria Reyes, Kerstin Gries, Cemile Ümran Ceylan, Sushma Sharma, Matthias Meurer, Michael Knop, Andrei Chabes, Hans Hombauer
Eukaryotic DNA replication fidelity relies on the concerted action of DNA polymerase nucleotide selectivity, proofreading activity, and DNA mismatch repair (MMR). Nucleotide selectivity and proofreading are affected by the balance and concentration of deoxyribonucleotide (dNTP) pools, which are strictly regulated by ribonucleotide reductase (RNR). Mutations preventing DNA polymerase proofreading activity or MMR function cause mutator phenotypes and consequently increased cancer susceptibility. To identify genes not previously linked to high-fidelity DNA replication, we conducted a genome-wide screen in Saccharomyces cerevisiae using DNA polymerase active-site mutants as a "sensitized mutator background...
May 30, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28388097/replicative-bypass-studies-of-%C3%AE-anomeric-lesions-of-2-deoxyribonucleosides-in-vitro
#14
Nicole L Williams, Nicholas J Amato, Yinsheng Wang
Genomic integrity is constantly challenged by a variety of endogenous and exogenous DNA damaging agents, which can lead to the formation of 10(4)-10(5) DNA lesions per cell per day. Reactive oxygen species (ROS) represent a major type of DNA damaging agent. Specifically, a hydroxyl radical can attack the C1' position of 2-deoxyribose, and the ensuing carbon-centered radical, if improperly repaired, can cause the inversion of stereochemical configuration at the C1' to give α-anomeric lesions. In this study, we assessed the replicative bypass of α-dA, α-dT, α-dC, and α-dG in template DNA by conducting primer extension assays with the use of purified translesion synthesis DNA polymerases...
May 15, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28370519/cytosine-cytosine-base-pair-mismatch-and-chirality-in-nucleotide-supramolecular-coordination-complexes
#15
Qi-Ming Qiu, Pei Zhou, Leilei Gu, Liang Hao, Minghua Liu, Hui Li
The base-pair sequences are the foundation for the biological processes of DNA or RNA, and base-pair mismatch is very important to reveal genetic diseases and DNA rearrangements. However, the lack of well-defined structural information about base-pair mismatch is obstructing the investigation of this issue. The challenge is to crystallize the materials containing the base-pair mismatch. Engineering the small-molecule mimics or model is an effective strategy to solve this issue. Here, six cytidine-5'-monophosphate (CMP) and 2'-deoxycytidine-5'-monophosphate (dCMP) coordination polymers were reported containing cytosine-cytosine base-pair mismatch (i-motif), and their single-crystal structures and chiralities were studied...
March 31, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28318037/deoxycytidine-and-deoxythymidine-treatment-for-thymidine-kinase-2-deficiency
#16
Carlos Lopez-Gomez, Rebecca J Levy, Maria J Sanchez-Quintero, Martí Juanola-Falgarona, Emanuele Barca, Beatriz Garcia-Diaz, Saba Tadesse, Caterina Garone, Michio Hirano
OBJECTIVE: Thymidine kinase 2 (TK2), a critical enzyme in the mitochondrial pyrimidine salvage pathway, is essential for mitochondrial DNA (mtDNA) maintenance. Mutations in the nuclear gene, TK2, cause TK2 deficiency, which manifests predominantly in children as myopathy with mtDNA depletion. Molecular bypass therapy with the TK2 products, deoxycytidine monophosphate (dCMP) and deoxythymidine monophosphate (dTMP), prolongs the life span of Tk2-deficient (Tk2(-/-) ) mice by 2- to 3-fold...
May 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28290905/-therapy-of-high-risk-patients-after-decompensation-of-heart-failure-under-nt-probnp-control-main-results
#17
A A Skvortsov, D E Koshkina, O Yu Narusov, V N Protasov, V P Masenko, S N Tereshchenko
AIM: to compare efficacy of treatment of high risk patients after acute decompensation (AD) of chronic heart failure (CHF) based on monitoring of NT-proBNP concentration and standard treatment. MATERIAL AND METHODS: Patients (n=100) with class III-IV CHF and left ventricular ejection fraction (LV EF) <40% due to ischemic heart disease (IHD), dilated cardiomyopathy (DCMP), or arterial hypertension (AH) after compensation of HF before discharge were distributed into groups of low (NT-proBNP <1400 picog/ml, n=30) or high (NT-proBNP more or equal 1400 picog/ml, n=70) risk...
July 2016: Kardiologiia
https://www.readbyqxmd.com/read/28290856/-chronic-heart-failure-with-preserved-systolic-function-and-reversible-dilatation-of-cardiac-chambers
#18
O V Blagova, S V Volkov, A V Nedostup, A O Korobkov, I V Mostovoy, N G Sergushina, N V Gagarina, E A Mershina
Diagnosis of dilation (D) cardiomyopathy (CMP) requires exclusion not only of inflammatory and genetically determined forms but also of some rare diseases. This 51 year old patient with history of moderate arterial hypertension approached a cardiologist because of new onset atrial fibrillation and dyspnea. Echocardiography detected dilation of all cardiac chambers with relatively preserved ejection fraction, causing suspicion of DCMP. Among conditions excluded were coronary atherosclerosis, congenital heart defect with left to right shunt, primary pulmonary hypertension, pulmonary embolism, hypertensive heart, tachycardia induced CMP, arrhythmogenic right ventricular dysplasia, noncompaction myocardium...
June 2016: Kardiologiia
https://www.readbyqxmd.com/read/28271879/formation-and-determination-of-endogenous-methylated-nucleotides-in-mammals-by-chemical-labeling-coupled-with-mass-spectrometry-analysis
#19
Huan Zeng, Chu-Bo Qi, Ting Liu, Hua-Ming Xiao, Qing-Yun Cheng, Han-Peng Jiang, Bi-Feng Yuan, Yu-Qi Feng
5-Methylcytosine (5-mC) is an important epigenetic mark that plays critical roles in a variety of cellular processes. To properly exert physiological functions, the distribution of 5-mC needs to be tightly controlled in both DNA and RNA. In addition to methyltransferase-mediated DNA and RNA methylation, premethylated nucleotides can be potentially incorporated into DNA and RNA during replication and transcription. To exclude the premodified nucleotides into DNA and RNA, endogenous 5-methyl-2'-deoxycytidine monophosphate (5-Me-dCMP) generated from nucleic acids metabolism can be enzymatically deaminated to thymidine monophosphate (TMP)...
March 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28202452/entire-plastid-phylogeny-of-the-carrot-genus-daucus-apiaceae-concordance-with-nuclear-data-and-mitochondrial-and-nuclear-dna-insertions-to-the-plastid
#20
David M Spooner, Holly Ruess, Massimo Iorizzo, Douglas Senalik, Philipp Simon
PREMISE OF THE STUDY: We explored the phylogenetic utility of entire plastid DNA sequences in Daucus and compared the results with prior phylogenetic results using plastid and nuclear DNA sequences. METHODS: We used Illumina sequencing to obtain full plastid sequences of 37 accessions of 20 Daucus taxa and outgroups, analyzed the data with phylogenetic methods, and examined evidence for mitochondrial DNA transfer to the plastid (DcMP). KEY RESULTS: Our phylogenetic trees of the entire data set were highly resolved, with 100% bootstrap support for most of the external and many of the internal clades, except for the clade of D...
February 2017: American Journal of Botany
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