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https://www.readbyqxmd.com/read/28454482/effects-of-environmental-factors-and-metallic-electrodes-on-ac-electrical-conduction-through-dna-molecule
#1
S Abdalla, A Obaid, F M Al-Marzouki
BACKGROUND: Deoxyribonucleic acid (DNA) is one of the best candidate materials for various device applications such as in electrodes for rechargeable batteries, biosensors, molecular electronics, medical- and biomedical-applications etc. Hence, it is worthwhile to examine the mechanism of charge transport in the DNA molecule, however, still a question without a clear answer is DNA a molecular conducting material (wire), semiconductor, or insulator? The answer, after the published data, is still ambiguous without any confirmed and clear scientific answer...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28454441/microrna-130b-promotes-cell-migration-and-invasion-by-inhibiting-peroxisome-proliferator-activated-receptor-%C3%AE-in-human-glioma
#2
Peidong Li, Xinjun Wang, Qiao Shan, Yuehui Wu, Zhen Wang
Glioma is the most common and aggressive type of primary brain tumor. MicroRNA (miR)-130b functions as a tumor-associated miR. The dysregulation of miR-130b is involved in numerous biological characteristics and properties of certain types of cancer. The present study revealed the function and possible molecular mechanism of miR-130b in glioma cells, reporting that the level of miR-130b was markedly higher, increasing progressively as the histologic grade of the glioma increased, compared with the level in normal tissues...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454376/expression-and-function-of-mutt-homolog-1-in-distinct-subtypes-of-breast-cancer
#3
Xiaohui Zhang, Wei Song, Yidong Zhou, Feng Mao, Yan Lin, Jinghong Guan, Qiang Sun
Human MutT homolog 1 (MTH1) detoxifies the oxidized DNA precursor 8-oxo-2'-deoxyguanosine-5'-triphosphate and serves a tumor suppressive role in distinct types of cancer. In the present study, the expression of MTH1 was examined in various subtypes of breast cancer, and the effect of its suppression on breast cancer growth was characterized in vitro and in vivo. MTH1 mRNA and protein levels were assessed using the reverse transcription-quantitative polymerase chain reaction and immunohistochemistry. The effect of MTH1 expression on the proliferation of breast cancer cells was investigated in vitro using Cell Counting Kit-8 and colony formation assays, and in vivo using breast cancer cell line xenografts in mice...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454339/puma-decreases-the-growth-of-prostate-cancer-pc-3-cells-independent-of-p53
#4
Zhengfei Shan, Qingzuo Liu, Yuling Li, Jitao Wu, Dekang Sun, Zhenli Gao
PUMA (p53 upregulated modulator of apoptosis), a member of the B-cell lymphoma 2 (Bcl-2) protein family, is a pro-apoptotic protein. PUMA expression is modulated by the tumor suppressor p53. PUMA has a role in rapid cell death via p53-dependent and -independent mechanisms. To evaluate whether p53 is required for PUMA-mediated apoptosis in prostate cancer cells, p53 protein was silenced in human prostate cancer PC-3 cells by using p53 small interfering RNA (siRNA). The interference efficiency of p53 on RNA and protein levels was detected by reverse transcription-quantitative polymerase chain reaction and western blotting...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454331/centrosome-amplification-in-chondrosarcomas-a-primary-cell-culture-and-cryopreserved-tumor-sample-study
#5
Carla Aparecida Pinheiro, Iberê Cauduro Soares, Valter Penna, Jeremy Squire, Rui Manuel Vieira Reis, Sandra Regina Morini da Silva, Isabela de Carvalho, Marjori Leiva Camparoto, Maicon Fernando Zanon da Silva, Adhemar Longatto Longatto Filho
The genetics background underlying the aggressiveness of chondrosarcoma (CS) is poorly understood. One possible cause of malignant transformation is chromosomal instability, which involves an error in mitotic segregation due to numerical and/or functional abnormalities of centrosomes. The present study aimed to evaluate centrosome amplification in cryopreserved samples of tumor tissue from patients with CS. An analysis was performed on 3 primary cultures of tumors from patients who underwent surgery between January 2012 and December 2012 at the Department of Orthopedics at the Barretos Cancer Hospital (Barretos, Brazil)...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454298/expression-and-prognostic-relevance-of-mage-a3-and-mage-c2-in-non-small-cell-lung-cancer
#6
Xinfeng Chen, Liping Wang, Jinyan Liu, Lan Huang, Li Yang, Qun Gao, Xiaojuan Shi, Jieyao Li, Feng Li, Zhen Zhang, Song Zhao, Bin Zhang, Pierre Van der Bruggen, Yi Zhang
Melanoma-associated antigen (MAGE)-A3 and MAGE-C2 are antigens encoded by cancer-germline genes, and have been recognized as potential prognostic biomarkers and attractive targets for immunotherapy in multiple types of cancer. The present study aimed to analyze the clinicopathological significance of MAGE-A3/C2 expression in non-small cell lung cancer (NSCLC). The association between MAGE-A3/C2 mRNA and protein expression, and the pathological characteristics and overall survival of patients with NSCLC was analyzed...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454124/influence-of-the-rehabilitation-outcome-on-returning-to-drive-after-neurological-impairment
#7
Urša Š Čižman, Gaj Vidmar, Petra Drnovšek
In traumatic brain injury (TBI) and stroke rehabilitation, the question of reintegration of the driver into traffic is faced very often. Driving is an important domain and for some patients, return to driving represents a crucial event for community inclusion. The aim of our study was to examine the utility of Glasgow Coma Scale within the first 24 h of injury and the Functional Independence Measure (FIM) at rehabilitation admission for predicting the return to driving. We included 72 patients after TBI or stroke...
June 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/28454092/hoxb7-promotes-tumor-progression-via-bfgf-induced-activation-of-mapk-erk-pathway-and-indicated-poor-prognosis-in-hepatocellular-carcinoma
#8
Wei-Min Wang, Yang Xu, Yao-Hui Wang, Hai-Xiang Sun, Yun-Fan Sun, Yi-Feng He, Qing-Feng Zhu, Bo Hu, Xin Zhang, Jing-Lin Xia, Shuang-Jian Qiu, Jian Zhou, Xin-Rong Yang, Jia Fan
The homeobox-containing gene HOXB7 plays an important role in the pathogenesis and progression of many cancers, yet its role in hepatocellular carcinoma (HCC) remains unclear. This study comprehensively analyzed the expression and clinical significance of HOXB7 in HCC and explored its potential mechanism in tumor progression. We found HOXB7 was highly expressed in HCC cell lines with highly metastatic potential and cancerous tissues from patients with tumor recurrence. The abilities of proliferation, migration, and invasion were notably decreased by depletion of HOXB7, and were enhanced by its enforced expression in vitro...
April 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28454071/increased-gait-variability-may-not-imply-impaired-stride-to-stride-control-of-walking-in-healthy-older-adults-winner-2013-gait-and-clinical-movement-analysis-society-best-paper-award
#9
Jonathan B Dingwell, Mandy M Salinas, Joseph P Cusumano
Older adults exhibit increased gait variability that is associated with fall history and predicts future falls. It is not known to what extent this increased variability results from increased physiological noise versus a decreased ability to regulate walking movements. To "walk", a person must move a finite distance in finite time, making stride length (Ln) and time (Tn) the fundamental stride variables to define forward walking. Multiple age-related physiological changes increase neuromotor noise, increasing gait variability...
March 31, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28454042/cortical-plasticity-and-levodopa-induced-dyskinesias-in-parkinson-s-disease-connecting-the-dots-in-a-multicomponent-network
#10
REVIEW
Roopa Rajan, Traian Popa, Angelo Quartarone, Maria Felice Ghilardi, Asha Kishore
Levodopa-induced dyskinesias are motor complications following long term dopaminergic therapy in Parkinson's disease (PD). Impaired brain plasticity resulting in the creation of aberrant motor maps intended to encode normal voluntary movement is proposed to result in the development of dyskinesias. Traditionally, the various nodes in the motor network like the striato-cortical and the cerebello-thalamic loops were thought to function independent of each other with little communication among them. Anatomical evidence from primates revealed the existence of reciprocal loops between the basal ganglia and the cerebellum providing an anatomical basis for communication between the motor network loops...
April 10, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28453789/serum-tumor-necrosis-factor-receptor-1-is-associated-with-trajectories-of-functional-status-the-northern-manhattan-study
#11
Mandip S Dhamoon, Ying-Kuen Cheung, Yeseon P Moon, Clinton B Wright, Joshua Z Willey, Ralph L Sacco, Mitchell S V Elkind
We hypothesized that tumor necrosis factor receptor-1 (TNFR1) levels are associated with long-term trajectories of functional status independently of vascular risk factors and stroke and myocardial infarction (MI) occurring during follow-up. In the Northern Manhattan Study, stroke-free individuals in northern Manhattan aged >40 years had annual assessments with the Barthel index (BI) for a median of 13 years. Baseline demographics, risk factors, and laboratory studies included TNFR1 (n = 1,863). Generalized estimating equation models estimated standardized associations between TNFR1 and 1) baseline functional status and 2) change in function over time, adjusting for demographics, vascular risk factors, social variables, cognition, and depression, and stroke and MI occurring during follow-up...
April 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28453609/invited-commentary-searching-for-the-perfect-measure-of-diastolic-dysfunction-a-futile-exercise
#12
Ambarish Pandey, Jarett D Berry
Heart failure with preserved ejection fraction (HFpEF) is common, recalcitrant to treatment, and associated with poor outcomes. Diastolic dysfunction (DD) is an independent predictor of HFpEF risk, associated clinical manifestations, and long-term outcomes. However, the usefulness of diastolic function assessment is limited by the heterogeneity in the existing definitions of DD. In this issue of the Journal, Rasmussen-Torvik et al. (Am J Epidemiol. 2017;000(00):000-000) have highlighted this problem by evaluating the prevalence and concordance of 4 established definitions of DD in the Coronary Artery Risk Development in Young Adults (CARDIA) cohort...
April 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28453595/-eyelid-retraction-of-neurologic-origin-report-of-three-cases
#13
Luis Cartier R, Jorge Guzmán S, Renzo Pasquali F
Eyelid retraction, has received limited attention and it has passively been interpreted as the result of an overactive levator palpebrae superioris muscle secondary to midbrain injury. However, eyelid retractions can occur in other neurological diseases, not directly related with the midbrain. We report three patients who developed eyelid retraction. One patient had a bilateral eyelid retraction, related with Creutzfeldt-Jakob disease (CJD). Another patient had a unilateral right eyelid retraction associated with a thalamic-mesencephalic infarct...
February 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28453543/altered-resting-state-intra-and-inter-network-functional-connectivity-in-patients-with-persistent-somatoform-pain-disorder
#14
Zhiyong Zhao, Tianming Huang, Chaozheng Tang, Kaiji Ni, Xiandi Pan, Chao Yan, Xiaoduo Fan, Dongrong Xu, Yanli Luo
Patients with persistent somatoform pain disorder (PSPD) usually experience various functional impairments in pain, emotion, and cognition, which cannot be fully explained by a physiological process or a physical disorder. However, it is still not clear for the mechanism underlying the pathogenesis of PSPD. The present study aimed to explore the intra- and inter-network functional connectivity (FC) differences between PSPD patients and healthy controls (HCs). Functional magnetic resonance imaging (fMRI) was performed in 13 PSPD patients and 23 age- and gender-matched HCs...
2017: PloS One
https://www.readbyqxmd.com/read/28453478/functional-reserve-experience-participating-in-instrumental-activities-of-daily-living-is-associated-with-gender-and-functional-independence-in-mild-cognitive-impairment
#15
Courtney Berezuk, Konstantine K Zakzanis, Joel Ramirez, Anthony C Ruocco, Jodi D Edwards, Brandy L Callahan, Sandra E Black
BACKGROUND: Gender differences in instrumental activities of daily living (IADLs) in mild cognitive impairment (MCI) and Alzheimer's disease may be explained by gender differences in IADL involvement. OBJECTIVE: We introduce a novel theoretical construct, termed functional reserve, and empirically examine gender differences in IADL experience as a proxy of this reserve. METHODS: We cross-sectionally examined men (n = 502) and women (n = 340) with MCI from the Alzheimer's Disease Neuroimaging Initiative (ADNI)...
April 25, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28453288/photothermal-transport-of-dna-in-entropy-landscape-plasmonic-waveguides
#16
Cameron L C Smith, Anil H Thilsted, Jonas N Pedersen, Tomas H Youngman, Julia C Dyrnum, Nicolai A Michaelsen, Rodolphe Marie, Anders Kristensen
The ability to handle single, free molecules in lab-on-a-chip systems is key to the development of advanced biotechnologies. Entropic confinement offers passive control of polymers in nanofluidic systems by locally asserting a molecule's number of available conformation states through structured landscapes. Separately, a range of plasmonic configurations have demonstrated active manipulation of nano-objects by harnessing concentrated electric fields. The integration of these two independent techniques promises a range of sophisticated and complementary functions to handle, for example, DNA, but numerous difficulties, in particular, conflicting requirements of channel size, have prevented progress...
April 28, 2017: ACS Nano
https://www.readbyqxmd.com/read/28453264/polymorphous-al-mofs-based-on-v-shaped-linker-molecules-synthesis-properties-and-in-situ-investigation-of-their-crystallization
#17
Martin Krüger, A Ken Inge, Helge Reinsch, Yuan-Han Li, Mohammad Wahiduzzaman, Chia-Her Lin, Sue-Lein Wang, Guillaume Maurin, Norbert Stock
The in situ and systematic high-throughput investigation of the system Al(3+)/4,4'-benzophenonedicarboxylic acid (H2BPDC)/DMF/H2O in the presence of various additives was carried out, and a new Al-MOF of composition [Al(OH)(BPDC)], denoted as CAU-21-BPDC, was obtained. Its crystal structure was determined from single-crystal X-ray diffraction data (space group I422, a = b = 17.2528(7) Å, c = 23.864(1) Å). The structure is built up by octanuclear rings of cis corner-sharing AlO6 polyhedra forming the inorganic building unit (IBU)...
April 28, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28449482/retrospective-analysis-of-stereotactic-ablative-radiotherapy-sabr-for-metastatic-lung-lesions-mlls-in-comparison-with-a-contemporaneous-cohort-of-primary-lung-lesions-plls
#18
Feras Oskan, Yvonne Dzierma, Stefan Wagenpfeil, Christian Rübe, Jochen Fleckenstein
BACKGROUND: The net benefit from local ablative therapy for pulmonary oligometastases remains unknown. The outcomes of stereotactic ablative radiotherapy (SABR) for metastatic lung lesions (MLLs) were analyzed retrospectively and compared with those of SABR for primary lung lesions (PLLs). METHODS: Medical records of patients treated with lung SABR between 2011 and 2014 were retrospectively reviewed. Basic patient, lesion and treatment characteristics were compared using the Pearson chi-square test for categorical and Mann-Whitney U test for continuous variables...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28449408/prediabetes-is-associated-with%C3%A2-genetic-variations-in-the-kir6-2-subunit%C3%A2-kcnj11-%C3%A2-of-pancreatic-atp-sensitive-potassium-channel-gene-a-case-control-study-in-youth-han-chinese-population
#19
Min Xu, Honglin Hu, Datong Deng, Mingwei Chen, Zhenshan Xu, Youmin Wang
BACKGROUND: E23K variant of the KCNJ11 has been reported to be associated with type 2 diabetes in multiple populations. However, little is known about the role of E23K polymorphism of the KCNJ11 in the development of prediabetes in youth in China. METHODS: To this end, we recruited 279 subjects with prediabetes and 240 normal controls. RESULTS: We found that prediabetic Chinese youth exhibited higher carrier rate of K23-allele-containing genotypes than control subjects (p = 0...
April 27, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/28449355/father-child-interactions-at-3-months-and-24-months-contributions-to-children-s-cognitive-development-at-24-months
#20
Vaheshta Sethna, Emily Perry, Jill Domoney, Jane Iles, Lamprini Psychogiou, Natasha E L Rowbotham, Alan Stein, Lynne Murray, Paul G Ramchandani
The quality of father-child interactions has become a focus of increasing research in the field of child development. We examined the potential contribution of father-child interactions at both 3 months and 24 months to children's cognitive development at 24 months. Observational measures of father-child interactions at 3 and 24 months were used to assess the quality of fathers' parenting (n = 192). At 24 months, the Mental Developmental Index (MDI) of the Bayley Scales of Infant Development, Second Edition (N...
April 27, 2017: Infant Mental Health Journal
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