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https://www.readbyqxmd.com/read/29334669/anti-obesity-effects-of-clausena-excavata-in-high-fat-diet-induced-obese-mice
#1
Young-Rak Cho, Jung A Lee, Yoon Yeon Kim, Jae-Shin Kang, Jae-Ho Lee, Eun-Kyung Ahn
Clausena excavata (C. excavata) has been used as a traditional medicine for the treatment of abdominal pain, enteritis, dysentery, and malaria. The present study was designed to evaluate the effect of a 50% ethanol extract of C. excavata (ECE) on weight loss, adipocyte size, and obesity-related biochemical parameters in high-fat diet (HFD)-induced obese mice. After 6 weeks of HFD + ECE administration, HFD-induced total fat, subcutaneous fat, and visceral fat were evaluated by micro-computed tomography. The serum levels of triglyceride (TG), total cholesterol (TCH), high-density lipoprotein (HDL) cholesterol, and low-density lipoprotein (LDL) cholesterol were evaluated with a biochemical analyzer, and leptin and adiponectin levels in the serum were assessed via enzyme-linked immunoassay (ELISA)...
January 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29334516/computer-based-training-in-eating-and-nutrition-facilitates-person-centered-hospital-care-a-group-concept-mapping-study
#2
Albert Westergren, Ellinor Edfors, Erika Norberg, Anna Stubbendorff, Gita Hedin, Martin Wetterstrand, Scott R Rosas, Peter Hagell
Studies have shown that computer-based training in eating and nutrition for hospital nursing staff increased the likelihood that patients at risk of undernutrition would receive nutritional interventions. This article seeks to provide understanding from the perspective of nursing staff of conceptually important areas for computer-based nutritional training, and their relative importance to nutritional care, following completion of the training. Group concept mapping, an integrated qualitative and quantitative methodology, was used to conceptualize important factors relating to the training experiences through four focus groups (n = 43), statement sorting (n = 38), and importance rating (n = 32), followed by multidimensional scaling and cluster analysis...
January 12, 2018: Computers, Informatics, Nursing: CIN
https://www.readbyqxmd.com/read/29334463/torquoselective-mechanochemical-activation-of-the-staudinger-reaction-to-form-%C3%AE-lactams
#3
Dominik Marx, M Isabel Menendez
The Staudinger reaction yielding β-lactam rings via [2+2] cycloaddition is a torquoselective reaction where the stereochemistry of the product can be steered by suitable substituents. Although the mechanochemical ring-opening of β-lactams has been investigated recently, the force-assisted synthesis of this important functional four-ring motif remains unexplored. As it will be computationally demonstrated, mechanochemical activation greatly reduces the barrier of the rate limiting ring-closure step while, at the same time, preserves its torquoselectivity...
January 15, 2018: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29334373/prevention-of-tuberculosis-in-rhesus-macaques-by-a-cytomegalovirus-based-vaccine
#4
Scott G Hansen, Daniel E Zak, Guangwu Xu, Julia C Ford, Emily E Marshall, Daniel Malouli, Roxanne M Gilbride, Colette M Hughes, Abigail B Ventura, Emily Ainslie, Kurt T Randall, Andrea N Selseth, Parker Rundstrom, Lauren Herlache, Matthew S Lewis, Haesun Park, Shannon L Planer, John M Turner, Miranda Fischer, Christina Armstrong, Robert C Zweig, Joseph Valvo, Jackie M Braun, Smitha Shankar, Lenette Lu, Andrew W Sylwester, Alfred W Legasse, Martin Messerle, Michael A Jarvis, Lynn M Amon, Alan Aderem, Galit Alter, Dominick J Laddy, Michele Stone, Aurelio Bonavia, Thomas G Evans, Michael K Axthelm, Klaus Früh, Paul T Edlefsen, Louis J Picker
Despite widespread use of the bacille Calmette-Guérin (BCG) vaccine, tuberculosis (TB) remains a leading cause of global mortality from a single infectious agent (Mycobacterium tuberculosis or Mtb). Here, over two independent Mtb challenge studies, we demonstrate that subcutaneous vaccination of rhesus macaques (RMs) with rhesus cytomegalovirus vectors encoding Mtb antigen inserts (hereafter referred to as RhCMV/TB)-which elicit and maintain highly effector-differentiated, circulating and tissue-resident Mtb-specific CD4+ and CD8+ memory T cell responses-can reduce the overall (pulmonary and extrapulmonary) extent of Mtb infection and disease by 68%, as compared to that in unvaccinated controls, after intrabronchial challenge with the Erdman strain of Mtb at ∼1 year after the first vaccination...
January 15, 2018: Nature Medicine
https://www.readbyqxmd.com/read/29334360/self-consistent-description-of-local-density-dynamics-in-simple-liquids-the-case-of-molten-lithium
#5
Anatolii Mokshin, Bulat N Galimzyanov
The dynamic structure factor is the quantity, which can be measured by means of Brillouin light-scattering as well as by means of inelastic scattering of neutrons and X-rays. The spectral (or frequency) moments of the dynamic structure factor define directly the sum rules of the scattering law. The theoretical scheme formulated in this study allows one to describe the dynamics of local density fluctuations in simple liquids and to obtain the expression of the dynamic structure factor in terms of the spectral moments...
January 15, 2018: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29334352/the-multimorbidity-cluster-analysis-tool-identifying-combinations-and-permutations-of-multiple-chronic-diseases-using-a-record-level-computational-analysis
#6
Kathryn Nicholson, Michael Bauer, Amanda Terry, Martin Fortin, Tyler Williamson, Amardeep Thind
Multimorbidity, or the co-occurrence of multiple chronic health conditions within an individual, is an increasingly dominant presence and burden in modern health care systems.  To fully capture its complexity, further research is needed to uncover the patterns and consequences of these co-occurring health states.  As such, the Multimorbidity Cluster Analysis Tool and the accompanying Multimorbidity Cluster Analysis Toolkit have been created to allow researchers to identify distinct clusters that exist within a sample of participants or patients living with multimorbidity...
December 13, 2017: Journal of Innovation in Health Informatics
https://www.readbyqxmd.com/read/29334277/validation-of-dpoae-screening-conducted-by-village-health-workers-in-a-rural-community-with-real-time-click-evoked-tele-auditory-brainstem-response
#7
Vidya Ramkumar, C S Vanaja, James W Hall, K Selvakumar, Roopa Nagarajan
OBJECTIVE: This study assessed the validity of DPOAE screening conducted by village health workers (VHWs) in a rural community. Real-time click evoked tele-auditory brainstem response (tele-ABR) was used as the gold standard to establish validity. DESIGN: A cross-sectional design was utilised to compare the results of screening by VHWs to those obtained via tele-ABR. Study samples: One hundred and nineteen subjects (0 to 5 years) were selected randomly from a sample of 2880 infants and young children who received DPOAE screening by VHWs...
January 15, 2018: International Journal of Audiology
https://www.readbyqxmd.com/read/29334259/development-of-three-dimensional-brain-arteriovenous-malformation-model-for-patient-communication-and-young-neurosurgeon-education
#8
Mengqi Dong, Guangzhong Chen, Kun Qin, Xiaowen Ding, Dong Zhou, Chao Peng, Shaojian Zeng, Xianming Deng
PURPOSE: Rapid prototyping technology is used to fabricate three-dimensional (3D) brain arteriovenous malformation (AVM) models and facilitate presurgical patient communication and medical education for young surgeons. METHODS: Two intracranial AVM cases were selected for this study. Using 3D CT angiography or 3D rotational angiography images, the brain AVM models were reconstructed on personal computer and the rapid prototyping process was completed using a 3D printer...
January 15, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29334220/computational-design-synthesis-and-structure-property-evaluation-of-1-3-thiazole-based-colour-tunable-multiheterocyclic-small-organic-fluorophores-as-multifunctional-molecular-materials
#9
Rakesh Radhakrishnan, Kumaran G Sreejalekshmi
Probing chemical space of luminescent organic materials built on novel cores is highly imperative for its potential to expand the horizons of advanced functional materials. Small organic fluorophores possessing therapeutic traits can contribute to theranostics. We coupled computational and classical synthetic chemistry strategies for the rational design of 5-(hetero-2-yl)-1,3-thiazoles as colour tunable fluorophore core. With the aid of DFT and TD-DFT, we prove multiheterocyclic system built on thiazole-het core with three inherent tunable sites on thiazole (C2, C4 and C5) capable of accommodating panoply of substituents, as a multifunctional molecular materials' platform...
January 15, 2018: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29334187/surveying-the-landscape-of-optogenetic-methods-for-detection-of-protein-protein-interactions
#10
REVIEW
Matthew D Wiens, Robert E Campbell
Mapping the protein-protein interaction (PPi) landscape is of critical importance to furthering our understanding how cells and organisms function. Optogenetic methods, that is, approaches that utilize genetically encoded fluorophores or fluorogenic enzyme reactions, uniquely enable the visualization of biochemical phenomena in live cells with high spatial and temporal accuracy. Applying optogenetic methods to the detection of PPis requires the engineering of protein-based systems in which an optical signal undergoes a substantial change when the two proteins of interest interact...
January 15, 2018: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/29334156/the-retinal-ganglion-cell-layer-predicts-normal-appearing-white-matter-tract-integrity-in-multiple-sclerosis-a-combined-diffusion-tensor-imaging-and-optical-coherence-tomography-approach
#11
Carolina Alves, Sónia Batista, Otília C d'Almeida, Lívia Sousa, Luís Cunha, Rui Bernardes, Miguel Castelo-Branco
We investigated the relationship between retinal layers and normal-appearing white matter (WM) integrity in the brain of patients with relapsing-remitting multiple sclerosis (MS), using a combined diffusion tensor imaging and high resolution optical coherence tomography approach. Fifty patients and 62 controls were recruited. The patients were divided into two groups according to presence (n = 18) or absence (n = 32) of optic neuritis. Diffusion tensor data were analyzed with a voxel-wise whole brain analysis of diffusion metrics in WM with tract-based spatial statistics...
January 15, 2018: Human Brain Mapping
https://www.readbyqxmd.com/read/29334137/calcium-phosphate-precipitation-in-experimental-gaps-between-fluoride-containing-fast-setting-calcium-silicate-cement-and-dentin
#12
Bahram Ranjkesh, Ming Ding, Michel Dalstra, Jens R Nyengaard, Jacques Chevallier, Flemming Isidor, Henrik Løvschall
A novel fast-setting calcium silicate cement containing fluoride (novel-CSC) has been developed for applications in tooth crowns. The aim of this study was to assess the ability of the novel-CSC to close the experimental gaps at the dentin-cement interface. The novel-CSC was tested against Vitrebond and GC Fuji II LC. Experimental gaps of 50 or 300 μm width were created between the materials and dentin. Specimens with the 300-μm-wide gap were immersed in phosphate-buffered saline and the closed gap area was measured during 96 h...
January 15, 2018: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/29334122/inhibition-of-hsp90%C3%AE-protects-cultured-neurons-from-oxygen-glucose-deprivation-induced-necroptosis-by-decreasing-rip3-expression
#13
Zhen Wang, Li-Min Guo, Yong Wang, Hong-Kang Zhou, Shu-Chao Wang, Dan Chen, Ju-Fang Huang, Kun Xiong
Heat shock protein 90α (HSP90α) maintains cell stabilization and regulates cell death, respectively. Recent studies have shown that HSP90α is involved in receptor interacting protein 3 (RIP3)-mediated necroptosis in HT29 cells. It is known that oxygen and glucose deprivation (OGD) can induce necroptosis, which is regulated by RIP3 in neurons. However, it is still unclear whether HSP90α participates in the process of OGD-induced necroptosis in cultured neurons via the regulation of RIP3. Our study found that necroptosis occurs in primary cultured cortical neurons and PC-12 cells following exposure to OGD insult...
November 20, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29334077/magnitude-of-the-current-in-2d-interlayer-tunneling-devices
#14
Randall M Feenstra, Sergio C de la Barrera, Jun Li, Yifan Nie, Kyeongjae Cho
Using the Bardeen tunneling method with first-principles wave functions, computations are made of the tunneling current in graphene/hexagonal-boron-nitride/graphene (G/h-BN/G) vertical structures. Detailed comparison with prior experimental results is made, focusing on the magnitude of the achievable tunnel current. With inclusion of the effects of translational and rotational misalignment of the graphene and the h-BN, predicted currents are found to be about 15×  larger than experimental values. A reduction in this discrepancy, to a factor of 2...
January 15, 2018: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29333959/a-noninvasive-body-setup-method-for-radiotherapy-by-using-a-multimodal-image-fusion-technique
#15
Jie Zhang, Ying Chen, Yunxia Chen, Chenchen Wang, Jing Cai, Kaiyue Chu, Jianhua Jin, Yun Ge, Xiaolin Huang, Yue Guan, Weifeng Li
PURPOSE: To minimize the mismatch error between patient surface and immobilization system for tumor location by a noninvasive patient setup method. MATERIALS AND METHODS: The method, based on a point set registration, proposes a shift for patient positioning by integrating information of the computed tomography scans and that of optical surface landmarks. An evaluation of the method included 3 areas: (1) a validation on a phantom by estimating 100 known mismatch errors between patient surface and immobilization system...
December 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29333904/the-biological-treatment-planning-evolution-of-clinical-fractionated-radiotherapy-using-high-let
#16
Katia Parodi
PURPOSE: Starting from the birth of high LET radiotherapy in USA in the mid 1970s, the field has continuously evolved and to date over 20,000 patients have been treated with 12C ions worldwide. The purpose of this contribution is to review the advancements in clinical fractionated radiotherapy using high LET radiation in the last decades, with special focus on biological treatment planning. CONCLUSIONS: Along with technological developments for ion acceleration and beam delivery, progress in radiation biology and computational modeling has enabled a remarkable evolution in the planning capabilities of highly conformal, biologically optimized treatment with high LET radiation...
January 15, 2018: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/29333861/intra-and-inter-observer-agreement-in-the-visual-interpretation-of-interim-18f-fdg-pet-ct-in-malignant-lymphoma-influence-of-clinical-information
#17
Maya Kato Arimoto, Yuji Nakamoto, Tatsuya Higashi, Takayoshi Ishimori, Mana Ishibashi, Kaori Togashi
Background Interim PET/CT is widely performed in lymphoma patients in clinical practice and clinical trials. Visual assessment using a 5-point scale is proposed for PET/CT interpretation, but intra- and inter-observer variation is not fully investigated. Purpose To investigate intra- and inter-observer variations in the reporting of interim positron emission tomography/computed tomography (PET/CT) in lymphoma patients, and the influence of clinical information on the interpretation. Material and Methods Three expert readers from different institutions interpreted interim PET/CT images of 42 consecutive patients with malignant lymphoma twice, with and without clinical information...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29333783/-application-of-preoperative-vascular-localization-techniques-for-perforator-flaps
#18
Wu Lianjun, Wang Huiming
With the development of microvascular technology, perforator flaps have gradually become a good alternative for reconstruction of tissue defects. However, the major limitations of perforator flaps include uncertainty in predicting anatomical location of perforators and high variability in perforator size and course, which require preoperative localization techniques. Recently, as one of the preoperative localization techniques, computed tomography angiography was used to determine the number, size, course, and exact emerging point of perforator flaps...
December 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29333774/-a-cone-beam-computed-tomography-study-on-the-anatomical-position-of-accessory-mandibular-foramina-in-jiangxi-adults
#19
Ke Xing, Li Bohan, Chen Linlin, Jiang Xindi
OBJECTIVE: This study used cone beam computed tomography (CBCT) to access the distribution and position of accessory mandibular foramina in the mandibular body of Jiangxi adults, and some safety rules of operation for clinics were provided. METHODS: Two hundred CBCT image subjects of Jiangxi adults were selected, which were divided into 4 groups by age with the same sex ratio. The number and position of accessory mandibular foramina in mandibular anterior teeth, premolars and molars region were described and the relationship between accessory mandibular foramina incidence and factors of age, gender and lateral were analyzed...
December 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29333773/-influence-of-positional-relationship-between-the-long-axis-of-the-mandibular-anterior-teeth-and-the-alveolar-bone-on-the-treatment-design-of-dental-implants
#20
Yu Tiantian, Pu Bishuang, Liu Jin, Xia Yulan, Wang Gang, Lan Jing
OBJECTIVE: This study aimed at investigating and measuring the positional relationship between the long axis of the mandibular anterior teeth and the alveolar bone using cone beam computed tomography (CBCT) to provide reference data for implant treatment. METHODS: From the CBCT image database, 150 cases of radiographic data were selected according to the inclusion criteria and then were divided into six groups: males' mandibular central incisors, males' mandibular lateral incisors, males' mandibular canines, females' mandibular central incisors, females' mandibular lateral incisors, and females' mandibular canines...
December 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
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