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https://www.readbyqxmd.com/read/27914062/computational-design-of-ligand-binding-proteins
#1
Christine E Tinberg, Sagar D Khare
The ability to design novel small-molecule binding sites in proteins is a stringent test of our understanding of the principles of molecular recognition, and would have many practical applications, in synthetic biology and medicine. Here, we describe a computational method in the context of the macromolecular modeling suite Rosetta to designing proteins with sites featuring predetermined interactions to ligands of choice. The required inputs for the method are a model of the small molecule and the desired interactions (e...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27912948/therapeutic-efficacy-of-traditional-chinese-medicine-kuan-sin-yin-in-patients-undergoing-chemotherapy-for-advanced-colon-cancer-a-controlled-trial
#2
Tsai-Ju Chien, Chia-Yu Liu, Ruey-Hwa Lu, Chin-Wei Kuo, Yang-Chao Lin, Chung-Hua Hsu
BACKGROUND: Traditional Chinese Medicine (TCM) has been used increasingly as complementary medicine in cancer care. Kuan-Sin-Yin (KSY) is a TCM decoction containing seven herbs known to cause immunomodulation or anticancer activity, and which are associated with the TCM concept of Qi and energy supply. Kuan-Sin-Yin has cytostatic effects on cancer cells in animal models. OBJECTIVE: The aim of this study is to evaluate the level of improvement in meridian energy and heart-rate variability (HRV) and to assess whether these observations are compatible with TCM theory...
December 2016: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/27910786/bioavailability-and-digestibility-of-nutrients-from-the-dried-oyster-culinary-medicinal-mushroom-pleurotus-ostreatus-agaricomycetes-in-vivo-experiments
#3
Julita Regula, Joanna Suliburska, Marek Siwulski
There is a limited number of publications on the bioavailability and digestibility of nutrients contained in macrofungi. The aim of this study was to assess the bioavailability and digestibility of macronutrients using in vivo experiments on laboratory animals. The experiments were conducted with the commercial oyster mushroom Pleurotus ostreatus. Semisynthetic diets were prepared based on the modified AIN-93M diet and were supplemented with 4% and 8% mushroom powder. Between days 4 and 13, apparent digestibility indexes were determined for all animals using the conventional balance method...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27908190/accuracy-reproducibility-and-uncertainty-analysis-of-thyroid-probe-based-activity-measurements-for-determination-of-dose-calibrator-settings
#4
Pedro L Esquinas, Jesse Tanguay, Marjorie Gonzalez, Milan Vuckovic, Cristina Rodríguez-Rodríguez, Urs O Häfeli, Anna Celler
PURPOSE: In the nuclear medicine department, the activity of radiopharmaceuticals is measured using dose calibrators (DCs) prior to patient injection. The DC consists of an ionization chamber that measures current generated by ionizing radiation (emitted from the radiotracer). In order to obtain an activity reading, the current is converted into units of activity by applying an appropriate calibration factor (also referred to as DC dial setting). Accurate determination of DC dial settings is crucial to ensure that patients receive the appropriate dose in diagnostic scans or radionuclide therapies...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27903431/differential-regulation-of-baicalin-and-scutellarin-on-ampk-and-akt-in-promoting-adipose-cell-glucose-disposal
#5
Le-Le Yang, Na Xiao, Jinfeng Liu, Kang Liu, Baolin Liu, Ping Li, Lian-Wen Qi
Baicalin and scutellarin, two flavonoid glucuronic acids isolated from Scutellaria baicalensis, exhibit beneficial effects on glucose homeostasis. Baicalin and scutellarin are similar in structure except scutellarin has an additional hydroxyl at composition C-4'. In this work, we observed that baicalin and scutellarin promoted glucose disposal in mice and in adipocytes. Baicalin selectively increased phosphorylation of AMP-activated kinase (AMPK), while scutellarin selectively enhanced Akt phosphorylation. Both of them increased AS160 phosphorylation and glucose uptake in basal condition...
November 26, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27897092/an-investigation-on-intermolecular-interaction-between-bis-indolyl-methane-and-hsa-and-bsa-using-multi-technique-methods
#6
Hamid Dezhampanah, Roghaye Firouzi
Bis(indolyl)methane (BIM) as one of the main active components of anticancer and antibacterial drugs is applied in medicinal and extensive area of chemistry. In this research interaction of human and bovine serum albumins, as drug carriers with BIM was investigated using spectroscopy methods and molecular modeling study. The fluorescence quenching measurements at the rage of 293 to 310 K revealed that the quenching mechanisms for human and bovine serum albumins are static and dynamic processes, respectively...
November 29, 2016: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/27893487/radial-extracorporeal-shock-wave-therapy-is-effective-and-safe-in-chronic-distal-biceps-tendinopathy
#7
John P Furia, Jan-Dirk Rompe, Nicola Maffulli, Angelo Cacchio, Christoph Schmitz
OBJECTIVE: To assess the efficacy and safety of radial extracorporeal shock wave therapy (rESWT) for chronic distal biceps tendinopathy (cDBT). DESIGN: Case-control study (level of evidence, 3). SETTING: SUN Orthopaedics and Sports Medicine. PATIENTS: Patients with a diagnosis of cDBT were recruited between January 2010 and February 2015. INTERVENTIONS: Patients received a single session of rESWT (2000 shock waves with energy flux density of 0...
November 23, 2016: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27892954/a-purified-membrane-protein-from-akkermansia-muciniphila-or-the-pasteurized-bacterium-improves-metabolism-in-obese-and-diabetic-mice
#8
Hubert Plovier, Amandine Everard, Céline Druart, Clara Depommier, Matthias Van Hul, Lucie Geurts, Julien Chilloux, Noora Ottman, Thibaut Duparc, Laeticia Lichtenstein, Antonis Myridakis, Nathalie M Delzenne, Judith Klievink, Arnab Bhattacharjee, Kees C H van der Ark, Steven Aalvink, Laurent O Martinez, Marc-Emmanuel Dumas, Dominique Maiter, Audrey Loumaye, Michel P Hermans, Jean-Paul Thissen, Clara Belzer, Willem M de Vos, Patrice D Cani
Obesity and type 2 diabetes are associated with low-grade inflammation and specific changes in gut microbiota composition. We previously demonstrated that administration of Akkermansia muciniphila to mice prevents the development of obesity and associated complications. However, the underlying mechanisms of this protective effect remain unclear. Moreover, the sensitivity of A. muciniphila to oxygen and the presence of animal-derived compounds in its growth medium currently limit the development of translational approaches for human medicine...
November 28, 2016: Nature Medicine
https://www.readbyqxmd.com/read/27878179/when-biomolecules-meet-graphene-from-molecular-level-interactions-to-material-design-and-applications
#9
REVIEW
Dapeng Li, Wensi Zhang, Xiaoqing Yu, Zhenping Wang, Zhiqiang Su, Gang Wei
Graphene-based materials have attracted increasing attention due to their atomically-thick two-dimensional structures, high conductivity, excellent mechanical properties, and large specific surface areas. The combination of biomolecules with graphene-based materials offers a promising method to fabricate novel graphene-biomolecule hybrid nanomaterials with unique functions in biology, medicine, nanotechnology, and materials science. In this review, we focus on a summarization of the recent studies in functionalizing graphene-based materials using different biomolecules, such as DNA, peptides, proteins, enzymes, carbohydrates, and viruses...
December 1, 2016: Nanoscale
https://www.readbyqxmd.com/read/27877182/insights-from-the-cold-transcriptome-and-metabolome-of-dendrobium-officinale-global-reprogramming-of-metabolic-and-gene-regulation-networks-during-cold-acclimation
#10
Zhi-Gang Wu, Wu Jiang, Song-Lin Chen, Nitin Mantri, Zheng-Ming Tao, Cheng-Xi Jiang
Plant cold acclimation (CA) is a genetically complex phenomenon involving gene regulation and expression. Little is known about the cascading pattern of gene regulatroy network and the link between genes and metabolites during CA. Dendrobium officinale (DOKM) is an important medicinal and ornamental plant and hypersensitive to low temperature. Here, we used the large scale metabolomic and transcriptomic technologies to reveal the response to CA in DOKM seedlings based on the physiological profile analyses. Lowering temperature from 4 to -2°C resulted in significant increase (P < 0...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27875972/the-role-of-chinese-herbal-medicines-and-bioactive-ingredients-targeting-myocardial-kca-and-katp-channels-in-cardiovascular-diseases
#11
Yan Dong, Pengqian Wang, Xue Feng, Bing Li, Zhong Wang, Haixia Li
Cardiovascular disorders are the most common diseases all over the world, which have limitations in the current treatment strategies. As two subtypes of potassium channel, KCa and KATP ion channels are playing important roles in the occurrence and development of cardiovascular diseases. KCa by activating the signal pathway of c-Src/PI3-kinase/Akt-dependent or eNOS-NO-cGMP affects the function of vascular endothelial cell, while KATP acting as medium combines the cell electrical activity and energy metabolism...
November 22, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27875600/finding-the-words-medical-students-reflections-on-communication-challenges-in-clinic
#12
Genna Braverman, Janine S Bruce, Gregory Makoul, Erika Schillinger
BACKGROUND AND OBJECTIVES: Interpersonal communication is essential to providing excellent patient care and requires ongoing development. Although aspects of medical student interpersonal communication may degrade throughout career progression, it is unknown what specific elements pose challenges. We aimed to characterize clerkship students' perspectives on communication challenges in the outpatient setting to help inform curricular development. METHODS: Third-year medical students in a required family medicine clerkship were asked to describe a communication challenge they encountered...
November 2016: Family Medicine
https://www.readbyqxmd.com/read/27869309/roles-of-notch-signaling-in-adipocyte-progenitor-cells-and-mature-adipocytes
#13
REVIEW
Tizhong Shan, Jiaqi Liu, Weiche Wu, Ziye Xu, Yizhen Wang
Adipose tissues, composed with mature adipocytes and preadipocytic stromal/stem cells, play crucial roles in whole body energy metabolism and regenerative medicine. Mature adipocytes are derived and differentiated from mesenchymal stem cells (MSCs) or preadipocytes. This differentiation process, also called adipogenesis, is regulated by several signaling pathways and transcription factors. Notch1 signaling is a highly conserved pathway that is indispensable for stem cell hemostasis and tissue development. In adipocyte progenitor cells, Notch1 signaling regulates the adipogenesis process including proliferation and differentiation of the adipocyte progenitor cells in vitro...
November 21, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27866517/-impact-and-effect-of-preoperative-short-term-pulmonary-rehabilitation-training-on-%C3%A2-lung-cancer-patients-with-mild-to-moderate-chronic-obstructive-pulmonary-disease-%C3%A2-a-randomized-trial
#14
Yutian Lai, Jianhua Su, Mei Yang, Kun Zhou, Guowei Che
BACKGROUND: Pulmonary rehabilitation (PR) is proposed as an effective strategy to decrease surgical morbidity. However, appropriate rehabilitation plan, initiation time, and optimal duration of PR remain unclear. Lung cancer patients with chronic obstructive pulmonary disease (COPD) are considered high-risk population for postoperative pulmonary complications (PPCs) because of poor lung fitness and cardiopulmonary endurance. This study aims to assess the impact of a one-week, systematic and highly-intensive rehabilitation on surgical lung cancer patients with mild to moderate COPD...
November 20, 2016: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/27862203/production-quality-control-and-determination-of-human-absorbed-dose-of-no-carrier-added-177-lu-risedronate-for-bone-pain-palliation-therapy
#15
Nafise Salek, Mohsen Mehrabi, Simindokht Shirvani Arani, Ali Bahrami Samani, Mostafa Erfani, Sara Vosoghi, Mohammad Ghannadi Maragheh, Mojtaba Shamsaei
In this study, the radiocomplexation of risedronic acid, a potent bisphosphonate with a no carrier added (NCA) (177) Lu, was investigated and followed by quality control studies, biodistribution evaluation, and dosimetry study for human based on biodistribution data in Wistar rats. The moderate energy β(-) emitter, (177) Lu (T½  = 6.7 days, Eβmax  = 497 keV), has been considered as a potential agent for development of bone-seeking radiopharmaceuticals. Because the specific activity of the radiolabeled carrier molecules should be high, the NCA radionuclides have an effective role in nuclear medicine...
November 15, 2016: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/27862046/the-role-of-different-sampling-methods-in-improving-biological-activity-prediction-using-deep-belief-network
#16
Fahimeh Ghasemi, Afshin Fassihi, Horacio Pérez-Sánchez, Alireza Mehri Dehnavi
Thousands of molecules and descriptors are available for a medicinal chemist thanks to the technological advancements in different branches of chemistry. This fact as well as the correlation between them has raised new problems in quantitative structure activity relationship studies. Proper parameter initialization in statistical modeling has merged as another challenge in recent years. Random selection of parameters leads to poor performance of deep neural network (DNN). In this research, deep belief network (DBN) was applied to initialize DNNs...
November 14, 2016: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/27861951/plasma-is-a-strategic-resource
#17
Paul F W Strengers, Harvey G Klein
Plasma-derived medicinal products (PDMPs) such as immunoglobulins and clotting factors are listed by the World Health Organization as essential medicines. These and other PDMPs are crucial for the prophylaxis and treatment of patients with bleeding disorders, immune deficiencies, autoimmune and inflammatory diseases, and a variety of congenital deficiency disorders. While changes in clinical practice in developed countries have reduced the need for red blood cell transfusions thereby significantly reducing the collection volumes of whole blood and recovered plasma suitable for fractionation, the need for PDMPs worldwide continues to increase...
November 12, 2016: Transfusion
https://www.readbyqxmd.com/read/27855498/mitochondria-targeted-nutraceuticals-in-sports-medicine-a-new-perspective
#18
Sergej M Ostojic
Since mitochondria have been recognized as the cells' key organelles involved in the energy utilization during exercise, targeting the organelle with specifically designed compounds (mitochondria-targeted nutraceuticals, MTNs) may have a great promise in the prevention and treatment of heavy exercise-related mitochondrial dysfunction. In vitro studies suggested that MTNs have antioxidant effects at the molecular level, and might boost mitochondrial biogenesis and organelle bioenergetics, with both processes are known to positively affect exercise performance and recovery...
November 18, 2016: Research in Sports Medicine
https://www.readbyqxmd.com/read/27854257/oxoisoaporphine-as-potent-telomerase-inhibitor
#19
Zu-Zhuang Wei, Qi-Pin Qin, Jia-Nian Chen, Zhen-Feng Chen
Two compounds previously isolated from traditional Chinese medicine, Menispermum dauricum (DC), 6-hydroxyl-oxoisoaporphine (H-L(a)), and 4,6-di(2-pyridinyl)benzo[h]isoindolo[4,5,6-de]quinolin-8(5H)-one (H-L(b)), were known to have in vitro antitumor activity and to selectively bind human telomeric, c-myc, and bcl-2 G-quadruplexes (G4s). In this study, the binding properties of these two compounds to telomerase were investigated through molecular docking and telomeric repeat amplication protocol and silver staining assay (TRAP-silver staining assay)...
November 14, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27853728/development-of-radrob15-a-robot-for-detecting-radioactive-contamination-in-nuclear-medicine-departments
#20
A Shafe, S M J Mortazavi, A Joharnia, Gh H Safaeyan
Accidental or intentional release of radioactive materials into the living or working environment may cause radioactive contamination. In nuclear medicine departments, radioactive contamination is usually due to radionuclides which emit high energy gamma photons and particles. These radionuclides have a broad range of energies and penetration capabilities. Rapid detection of radioactive contamination is very important for efficient removing of the contamination without spreading the radionuclides. A quick scan of the contaminated area helps health physicists locate the contaminated area and assess the level of activity...
September 2016: Journal of Biomedical Physics & Engineering
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