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https://www.readbyqxmd.com/read/29050469/in-vivo-18-f-ge-179-brain-signal-does-not-show-nmda-specific-modulation-with-drug-challenges-in-rodents-and-non-human-primates
#1
Matthias Schoenberger, Frederick A Schroeder, Michael S Placzek, Randall L Carter, Bruce R Rosen, Jacob M Hooker, Christin Y Sander
As one of the major excitatory ion channels in the brain, NMDA receptors have been a leading research target for neuroscientists, physicians, medicinal chemists and pharmaceutical companies for decades. Molecular imaging of NMDA receptors by means of positron emission tomography (PET) with [(18)F]GE-179 quickly progressed to clinical PET studies but a thorough understanding of its binding specificity has been missing and has thus limited signal interpretation. Here, a preclinical study with [(18)F]GE-179 in rodents and non-human primates is presented, in an attempt to characterize [(18)F]GE-179 signal specificity...
October 19, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29040063/validation-of-the-six-sigma-z-score-for-the-quality-assessment-of-clinical-laboratory-timeliness
#2
Cristiano Ialongo, Sergio Bernardini
BACKGROUND: The International Federation of Clinical Chemistry and Laboratory Medicine has introduced in recent times the turnaround time (TAT) as mandatory quality indicator for the postanalytical phase. Classic TAT indicators, namely, average, median, 90th percentile and proportion of acceptable test (PAT), are in use since almost 40 years and to date represent the mainstay for gauging the laboratory timeliness. In this study, we investigated the performance of the Six Sigma Z-score, which was previously introduced as a device for the quantitative assessment of timeliness...
October 17, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29037941/pre-clinical-assessment-of-the-lovo-device-for-dimethyl-sulfoxide-removal-and-cell-concentration-in-thawed-hematopoietic-progenitor-cell-grafts
#3
Bechara Mfarrej, Guillaume Bouchet, Jérôme Couquiaud, Lionel Regimbaud, Steven Binninger, Mathieu Mercier, Claude Lemarié, Pascal Houzé, Christian Chabannon, Boris Calmels
BACKGROUND: Cryopreserved hematopoietic progenitor cell (HPC) grafts are widely infused to patients with malignant and nonmalignant conditions. Despite reduction of immediate side effects linked to dimethyl sulfoxide (DMSO), cell debris-containing grafts and comparable hematopoietic engraftment between washed and unwashed cryopreserved products, bedside infusion of thawed HPC grafts is still preferred. Introduction of automated devices is important for standardization and consistency of graft manipulation...
October 13, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29035308/gut-microbiota-and-nonalcoholic-fatty-liver-disease-insights-on-mechanisms-and-therapy
#4
REVIEW
Junli Ma, Qihang Zhou, Houkai Li
The gut microbiota plays critical roles in development of obese-related metabolic diseases such as nonalcoholic fatty liver disease (NAFLD), type 2 diabetes(T2D), and insulin resistance(IR), highlighting the potential of gut microbiota-targeted therapies in these diseases. There are various ways that gut microbiota can be manipulated, including through use of probiotics, prebiotics, synbiotics, antibiotics, and some active components from herbal medicines. In this review, we review the main roles of gut microbiota in mediating the development of NAFLD, and the advances in gut microbiota-targeted therapies for NAFLD in both the experimental and clinical studies, as well as the conclusions on the prospect of gut microbiota-targeted therapies in the future...
October 16, 2017: Nutrients
https://www.readbyqxmd.com/read/29023277/diagnosis-and-treatment-of-slipping-rib-syndrome
#5
Cassidy M Foley, Dai Sugimoto, David P Mooney, William P Meehan, Andrea Stracciolini
OBJECTIVE: (1) To investigate the clinical presentation, diagnosis, and treatment of slipping rib syndrome in athletes; (2) to investigate the hooking maneuver for diagnosis of slipping rib syndrome. DESIGN: Retrospective chart review of 362 athletes with rib pain. SETTING: Pediatric-based sports medicine clinic between January 1, 1999, and March 1, 2014. PATIENTS: Costochondritis, Tietze, fractures, rib tip syndrome, and unclear diagnoses were excluded...
October 6, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29022488/characterization-of-immortalized-human-mammary-epithelial-cell-line-hmec-2-6
#6
Pooja S Joshi, Vishnu Modur, JiMing Cheng, Kathy Robinson, Krishna Rao
Primary human mammary epithelial cells have a limited life span which makes it difficult to study them in vitro for most purposes. To overcome this problem, we have developed a cell line that was immortalized using defined genetic elements, and we have characterized this immortalized non-tumorigenic human mammary epithelial cell line to establish it as a potential model system. human mammary epithelial cells were obtained from a healthy individual undergoing reduction mammoplasty at SIU School of Medicine. The cells were transduced with CDK4R24C followed by transduction with human telomerase reverse transcriptase...
October 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28989794/a-marker-of-biological-age-explains-individual-variation-in-the-strength-of-the-adult-stress-response
#7
Clare Andrews, Daniel Nettle, Maria Larriva, Robert Gillespie, Sophie Reichert, Ben O Brilot, Thomas Bedford, Pat Monaghan, Karen A Spencer, Melissa Bateson
The acute stress response functions to prioritize behavioural and physiological processes that maximize survival in the face of immediate threat. There is variation between individuals in the strength of the adult stress response that is of interest in both evolutionary biology and medicine. Age is an established source of this variation-stress responsiveness diminishes with increasing age in a range of species-but unexplained variation remains. Since individuals of the same chronological age may differ markedly in their pace of biological ageing, we asked whether biological age-measured here via erythrocyte telomere length-predicts variation in stress responsiveness in adult animals of the same chronological age...
September 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28987072/adult-use-of-complementary-and-integrative-approaches-to-improve-athletic-performance
#8
Marion Willard Evans, Harrison Ndetan, Vishaldeep Ka Sekhon, Ronald Williams, Brittney Oliver, Michael Perko, Conrad Woolsey, Karan P Singh
Context • In the United States in 2007, approximately 38% of adults, or 4 in 10, used some form of complementary and alternative medicine (CAM). An area in which little is known is the personal integration of CAM therapies by those individuals seeking to improve athletic performance. Objectives • The study intended to assess the use of integrative care by adult athletes in the United States as well as their satisfaction with it, as reported in the 2012 National Health Interview Survey (NHIS). Design • A secondary analysis of the data from the Adult Alternative Health/Complementary Medicine file of the 2012 NHIS was performed...
October 2, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28981859/the-psychology-of-decision-making-and-its-relevance-to-radiation-protection-of-the-patient-in-medicine
#9
B Michael Moores
An analysis and review of the fundamental psychological basis of decision making has been undertaken in respect of radiation protection of the patient in medicine. Both clinical and scientific aspects of patient protection have been considered. Every stage of the clinical process of radiological examinations, from referral through to diagnostic outcome, has been shown to be subject to proven psychological effects including biases, framing, anchoring and prospect theory, which deals with perceived gains and losses...
August 5, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28978860/development-of-ips-cell-derived-blood-products-and-production-guidelines
#10
Naoshi Sugimoto, Koji Eto
Blood products derived from iPS cells have been pursued as a blood donor-independent and genetically manipulative measure to complement or alternate current transfusion products. Erythrocytes and platelets are anucleate blood cells that are indispensable for oxygen delivery and hemostasis, respectively. Consequently, blood transfusions have been clinically established to treat severe anemia and thrombocytopenia. However, current blood products exhibit issues with regard to supply-demand imbalance and alloimmune responses and infections, and they also face a future shortage of donors in aging societies...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28978794/delivery-of-monocyte-lineage-cells-in-a-biomimetic-scaffold-enhances-tissue-repair
#11
Michael S Hu, Graham G Walmsley, Leandra A Barnes, Kipp Weiskopf, Robert C Rennert, Dominik Duscher, Michael Januszyk, Zeshaan N Maan, Wan Xing Hong, Alexander Tm Cheung, Tripp Leavitt, Clement D Marshall, Ryan C Ransom, Samir Malhotra, Alessandra L Moore, Jayakumar Rajadas, H Peter Lorenz, Irving L Weissman, Geoffrey C Gurtner, Michael T Longaker
The monocyte lineage is essential to normal wound healing. Macrophage inhibition or knockout in mice results in impaired wound healing through reduced neovascularization, granulation tissue formation, and reepithelialization. Numerous studies have either depleted macrophages or reduced their activity in the context of wound healing. Here, we demonstrate that by increasing the number of macrophages or monocytes in the wound site above physiologic levels via pullulan-collagen composite dermal hydrogel scaffold delivery, the rate of wound healing can be significantly accelerated in both wild-type and diabetic mice, with no adverse effect on the quality of repair...
October 5, 2017: JCI Insight
https://www.readbyqxmd.com/read/28964743/workshop-to-address-gaps-in-regulation-of-minimally-manipulated-autologous-cell-therapies-for-homologous-use-in-canada
#12
REVIEW
Jolene Chisholm, Barbara von Tigerstrom, Patrick Bedford, Julie Fradette, Sowmya Viswanathan
In Canada, minimally manipulated autologous cell therapies for homologous use (MMAC-H) are either regulated under the practice of medicine, or as drugs or devices under the Food and Drugs Act, Food and Drug Regulations (F&DR) or Medical Device Regulations (MDR). Cells, Tissues and Organs (CTO) Regulations in Canada are restricted to minimally manipulated allogeneic products for homologous use. This leaves an important gap in the interpretation of existing regulations. The purposes of this workshop co-organized by the Stem Cell Network and the Centre for Commercialization of Regenerative Medicine (CCRM) were to discuss the current state of regulation of MMAC-H therapies in Canada and compare it with other regulatory jurisdictions, with the intent of providing specific policy recommendations to Health Canada...
September 27, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28960061/ecological-roles-and-biological-activities-of-specialized-metabolites-from-the-genus-nicotiana
#13
REVIEW
Amir Reza Jassbi, Somayeh Zare, Mojtaba Asadollahi, Meredith C Schuman
Species of Nicotiana grow naturally in different parts of the world and have long been used both medicinally and recreationally by human societies. More recently in our history, Nicotiana tabacum has attracted interest as one of the most economically important industrial crops. Nicotiana species are frequently investigated for their bioactive natural products, and the ecological role of their specialized metabolites in responses to abiotic stress or biotic stress factors like pathogens and herbivores. The interest of tobacco companies in genetic information as well as the success of a few wild tobacco species as experimental model organisms have resulted in growing knowledge about the molecular biology and ecology of these plants and functional studies of the plant's natural products...
October 11, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/28932664/strong-electro-optic-effect-and-spontaneous-domain-formation-in-self-assembled-peptide-structures
#14
Barak Gilboa, Clément Lafargue, Amir Handelman, Linda J W Shimon, Gil Rosenman, Joseph Zyss, Tal Ellenbogen
Short peptides made from repeating units of phenylalanine self-assemble into a remarkable variety of micro- and nanostructures including tubes, tapes, spheres, and fibrils. These bio-organic structures are found to possess striking mechanical, electrical, and optical properties, which are rarely seen in organic materials, and are therefore shown useful for diverse applications including regenerative medicine, targeted drug delivery, and biocompatible fluorescent probes. Consequently, finding new optical properties in these materials can significantly advance their practical use, for example, by allowing new ways to visualize, manipulate, and utilize them in new, in vivo, sensing applications...
September 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/28930437/c-and-n-metalated-nitriles-the-relationship-between-structure-and-selectivity
#15
Xun Yang, Fraser F Fleming
Metalated nitriles are exceptional nucleophiles capable of forging highly hindered stereocenters in cases where enolates are unreactive. The excellent nucleophilicity emanates from the powerful inductive stabilization of adjacent negative charge by the nitrile, which has a miniscule steric demand. Inductive stabilization is the key to understanding the reactivity of metalated nitriles because this permits a continuum of structures that range from N-metalated ketenimines to nitrile anions. Solution and solid-state analyses reveal two different metal coordination sites, the formally anionic carbon and the nitrile nitrogen, with the site of metalation depending intimately on the solvent, counterion, temperature, and ligands...
October 17, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28929328/molecular-vaccine-prepared-by-fusion-of-xcl1-to-the-multi-epitope-protein-of-foot-and-mouth-disease-virus-enhances-the-specific-humoural-immune-response-in-cattle
#16
Kun Li, Huifang Bao, Guoyan Wei, Dong Li, Yingli Chen, Yuanfang Fu, Yimei Cao, Pinghua Li, Pu Sun, Xingwen Bai, Xueqin Ma, Jing Zhang, Zengjun Lu, Zaixin Liu
Targeting antigen to dendritic cells (DCs) is a promising way to manipulate the immune response and to design prophylactic molecular vaccines. In this study, the cattle XCL1, ligand of XCR1, was fused to the type O foot-and-mouth disease virus (FMDV) multi-epitope protein (XCL-OB7) to create a molecular vaccine antigen, and an (△)XCL-OB7 protein with a mutation in XCL1 was used as the control. XCL-OB7 protein specifically bound to the XCR1 receptor, as detected by flow cytometry. Cattle vaccinated with XCL-OB7 showed a significantly higher antibody response than that to the (△)XCL-OB7 control (P < 0...
September 19, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28928751/-multi-omics-analyses-of-the-development-and-function-of-natural-killer-cells
#17
REVIEW
Yonggang Zhou, Xiuxiu Xu, Zhigang Tian, Haiming Wei
For over four decades, our understanding of natural killer (NK) cells has evolved from the original description of cluster of differentiation (CD)56(+)CD3(-) to establishing NK cells as an important subset of innate lymphocytes in the host's surveillance against viral infections and malignancy. The progress of research on the fundamental properties and therapeutic prospects for translational medicine using NK cells excites immunologists and clinicians. Over the past decade, numerous advances in "-omics"-scale methods and new technological approaches have addressed many essential questions in the biology of NK cells...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28923128/-items-for-criticism-not-in-sequence-joseph-delee-pare-lorentz-and-the-fight-for-life-1940
#18
Caitjan Gainty
In the late 1920s, the American obstetrician Joseph DeLee brought the motion-picture camera into the birth room. Following that era's trend of adapting industrial efficiency practices for medical environments, DeLee's films give spectacular and unexpected expression to the engineering concept of 'streamlining'. Accomplishing what more tangible obstetric streamlining practices had failed to, DeLee's cameras, and his post-production manipulation, shifted birth from messy and dangerous to rationalized, efficient, death-defying...
September 2017: British Journal for the History of Science
https://www.readbyqxmd.com/read/28917744/differentiation-of-cumin-seeds-using-a-metal-oxide-based-gas-sensor-array-in-tandem-with-chemometric-tools
#19
Mahdi Ghasemi-Varnamkhasti, Zahra Safari Amiri, Mojtaba Tohidi, Majid Dowlati, Seyed Saeid Mohtasebi, Adenilton C Silva, David D S Fernandes, Mário C U Araujo
Cumin is a plant of the Apiaceae family (umbelliferae) which has been used since ancient times as a medicinal plant and as a spice. The difference in the percentage of aromatic compounds in cumin obtained from different locations has led to differentiation of some species of cumin from other species. The quality and price of cumin vary according to the specie and may be an incentive for the adulteration of high value samples with low quality cultivars. An electronic nose simulates the human olfactory sense by using an array of sensors to distinguish complex smells...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28917330/-oral-administration-of-medicines-in-elderly-patients-and-adaptation-of-galenic-forms
#20
Éric Pautas, Lasamy Bui, Alexandra Monti, Sébastien Krypciak, Anastasia Obraztsova, Eléna Paillaud
Physiological ageing and pathologies can have an influence on the pharmacology of numerous medicines, leading to serious iatrogenic accidents, polypharmacy and incorrect use of a medicine in elderly people. An observational study carried out in a short-stay geriatric unit focused on the issues surrounding the difficulties the elderly may encounter when taking medicines and the prevalence of the manipulation of galenic forms.
September 2017: Soins. Gérontologie
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