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https://www.readbyqxmd.com/read/28229407/assessment-of-energy-metabolic-changes-in-adipose-tissue-derived-stem-cells
#1
Ghazaleh Hajmousa, Martin C Harmsen
Adipose tissue-derived stem cells (ADSC) are promising candidates for therapeutic applications in cardiovascular regenerative medicine. By definition, the phenotype ADSCs, e.g., the ubiquitous secretion of growth factors, cytokines, and extracellular matrix components is not met in vivo, which renders ADSC a culture "artefact." The medium constituents therefore impact the efficacy of ADSC. Little attention has been paid to the energy source in medium, i.e., glucose, which feeds the cell's power plants: mitochondria...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28226540/micro-tube-mass-production-device-for-microbial-culture
#2
K Fujimoto, M Ogawa, K Higashi, N Miki, K Fujimoto, M Ogawa, K Higashi, N Miki, K Higashi, K Fujimoto, M Ogawa, N Miki
This paper describes mass production system of micro-tubes for microbial culture in an open environment. Microbes are used in many fields, such as food, medicine, environmental and energy. We proposed a microbe culture system using hydrogel micro-tubes, which can protect the target microbes inside from competitive microbes outside of the tubes while allow oxygen and nutrition to diffuse through. The hydrogel micro-tubes can be produced by a microfluidic device, which can precisely control the flow and therefore, the tube geometry...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28224719/cardiomyocyte-differentiation-promotes-cell-survival-during-nicotinamide-phosphoribosyltransferase-inhibition-through-increased-maintenance-of-cellular-energy-stores
#3
Erin M Kropp, Katarzyna A Broniowska, Matthew Waas, Alyssa Nycz, John A Corbett, Rebekah L Gundry
To address concerns regarding the tumorigenic potential of undifferentiated human pluripotent stem cells (hPSC) that may remain after in vitro differentiation and ultimately limit the broad use of hPSC-derivatives for therapeutics, we recently described a method to selectively eliminate tumorigenic hPSC from their progeny by inhibiting nicotinamide phosphoribosyltransferase (NAMPT). Limited exposure to NAMPT inhibitors selectively removes hPSC from hPSC-derived cardiomyocytes (hPSC-CM) and spares a wide range of differentiated cell types; yet, it remains unclear when and how cells acquire resistance to NAMPT inhibition during differentiation...
February 22, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28220946/light-and-energy-based-therapeutics-for-genitourinary-syndrome-of-menopause-consensus-and-controversies
#4
Yona Tadir, Adrian Gaspar, Ahinoam Lev-Sagie, Macrene Alexiades, Red Alinsod, Alex Bader, Alberto Calligaro, Jorge A Elias, Marco Gambaciani, Jorge E Graviria, Cheryl B Iglesia, Ksenija Selih-Martinec, Patricia L Mwesigwa, Urska B Ogrinc, Stefano Salvatore, Paolo Scollo, Nicola Zerbinati, John Stuart Nelson
Gynecologist and plastic surgeons pioneered the application of lasers in medicine and surgery almost 5 decades ago, initially used to treat cervical and vaginal pathologies. Ever since, energy-based devices have been deployed to treat pelvic pathologies and improve fertility. Recent technological developments triggered an unprecedented wave of publications, assessing the efficacy of fractional laser, and radiofrequency on the vaginal wall in reversing natural aging processes. Studies have shown that a certain degree of thermal energy deposited on the vaginal wall stimulates proliferation of the glycogen-enriched epithelium, neovascularization, and collagen formation in the lamina propria, and improves natural lubrication and control of urination...
February 21, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28219798/integrative-hepatoprotective-efficacy-comparison-of-raw-and-vinegar-baked-radix-bupleuri-using-nuclear-magnetic-resonance-based-metabolomics
#5
Jie Xing, Hui-Min Sun, Jin-Ping Jia, Xue-Mei Qin, Zhen-Yu Li
Radix Bupleuri (RB), with a Chinese name Chaihu, is one of the most popular Traditional Chinese herbal drug. It can be baked with vinegar to afford vinegar-baked Radix Bupleuri (VBRB), which is used in Traditional Chinese Medicine (TCM) for liver diseases treatment. In the present study, nuclear magnetic resonance-based metabolomic approach was used to compare the liver protective effect of RB and two types of VBRBs, which were prepared by two kinds of vinegar. The contents of 14 metabolites in the liver of carbon tetrachloride (CCl4) treated mice were significantly altered in comparison with control group, and VBRB prepared by Shanxi vinegar showed best effect as revealed by the amount and regulatory degree of the perturbed metabolites...
February 7, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28217454/erectile-dysfunction-treatment-and-traditional-medicine-can-east-and-west-medicine-coexist
#6
REVIEW
Joe K C Lee, Ronny B W Tan, Eric Chung
Erectile dysfunction (ED) is a common sexual problem affecting many men irrespective of cultures, beliefs and nationalities. While medical therapy for ED has been revolutionized by the advent of oral phosphodiesterase type 5 inhibitors and intracavernosal injection of vasoactive agents, recent technological advances such stem cell therapy, low intensity shock wave and newer generation of penile prosthesis implant offer hope to men who do not respond to conventional medical therapy. In contrast, traditional and complementary medicine (TCM) focuses on the restoration and better overall bodily regulation with the use of various herbal and animal products as well as exercises to invigorate qi (energy) in vital organs...
February 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28217370/tryptophan-a-gut-microbiota-derived-metabolites-regulating-inflammation
#7
REVIEW
Lucie Etienne-Mesmin, Benoit Chassaing, Andrew T Gewirtz
Inflammatory bowel diseases (IBD), which comprise Crohn's disease and ulcerative colitis, are chronic intestinal disorders with an increased prevalence and incidence over the last decade in many different regions over the world. The etiology of IBD is still not well defined, but evidence suggest that it results from perturbation of the homeostasis between the intestinal microbiota and the mucosal immune system, with the involvement of both genetic and environmental factors. Genome wide association studies, which involve large-scale genome-wide screening of potential polymorphism, have identified several mutations associated with IBD...
February 6, 2017: World Journal of Gastrointestinal Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28216905/green-biosynthesis-characterization-in-vitro-antidiabetic-activity-and-investigational-acute-toxicity-studies-of-some-herbal-mediated-silver-nanoparticles-on-animal-models
#8
Kalakotla Shanker, Gottumukkala Krishna Mohan, Md Ashwaq Hussain, Naradala Jayarambabu, Poka Lakshmi Pravallika
: Diabetes is a metabolic disorder characterized by hyperglycemia, altered carbohydrate, lipid and protein metabolism. In recent studies, Nanoscience and nanotechnology are blazing fields for researchers; for researchers; of late there has been a prodigious excitement in the field of nanopharmacology to study silver nanoparticle (SNP) synthesis using natural products. Biological methods have been used to synthesize SNPs using medicinally active plants having an antidiabetic role, and this made us to assess the biologically synthesized SNPs from the seed extract of Psoralea corylifolia using 1 mM silver nitrate solution...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28216890/evaluate-the-antigenotoxicity-and-anticancer-role-of-%C3%AE-sitosterol-by-determining-oxidative-dna-damage-and-the-expression-of-phosphorylated-mitogen-activated-protein-kinases-c-fos-c-jun-and-endothelial-growth-factor-receptor
#9
Ramalingam Sharmila, Ganapathy Sindhu
BACKGROUND: Plant sterols are the major source of micronutrients and have not shown any obvious side effects in human. β-sitosterol is one of the most prevalent phytosterols which have been recorded in ancient medicinal history for its use in the treatment of many chronic diseases, especially cancer. The modulations of mitogen-activated protein kinases' (MAPKs') play a crucial role in the development of human renal cell carcinoma. OBJECTIVE: The aim of the current study is to evaluate the antigenotoxic and anticancer role of β-sitosterol against renal carcinogen...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28213754/low-energy-availability-menstrual-dysfunction-and-low-bone-mineral-density-in-individuals-with-a-disability-implications-for-the-para-athlete-population
#10
REVIEW
Cheri A Blauwet, Emily M Brook, Adam S Tenforde, Elizabeth Broad, Caroline H Hu, Eliza Abdu-Glass, Elizabeth G Matzkin
Low energy availability, functional hypothalamic amenorrhea, and low bone mineral density are three interrelated conditions described in athletic women. Although described as the female athlete triad (Triad), males experience similar health concerns. The literature suggests that individuals with a disability may experience altered physiology related to these three conditions when compared with the able-bodied population. The goal of this review is to describe the unique implications of low energy availability, low bone mineral density, and, in females, menstrual dysfunction in individuals with a disability and their potential impact on the para athlete population...
February 17, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28213330/drug-discovery-strategies-in-the-field-of-tumor-energy-metabolism-limitations-by-metabolic-flexibility-and-metabolic-resistance-to-chemotherapy
#11
REVIEW
N D Amoedo, E Obre, R Rossignol
The search for new drugs capable of blocking the metabolic vulnerabilities of human tumors has now entered the clinical evaluation stage, but several projects already failed in phase I or phase II. In particular, very promising in vitro studies could not be translated in vivo at preclinical stage and beyond. This was the case for most glycolysis inhibitors that demonstrated systemic toxicity. A more recent example is the inhibition of glutamine catabolism in lung adenocarcinoma that failed in vivo despite a strong addiction of several cancer cell lines to glutamine in vitro...
February 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28210202/mechanisms-and-effects-of-transcranial-direct-current-stimulation
#12
James Giordano, Marom Bikson, Emily S Kappenman, Vincent P Clark, H Branch Coslett, Michael R Hamblin, Roy Hamilton, Ryan Jankord, Walter J Kozumbo, R Andrew McKinley, Michael A Nitsche, J Patrick Reilly, Jessica Richardson, Rachel Wurzman, Edward Calabrese
The US Air Force Office of Scientific Research convened a meeting of researchers in the fields of neuroscience, psychology, engineering, and medicine to discuss most pressing issues facing ongoing research in the field of transcranial direct current stimulation (tDCS) and related techniques. In this study, we present opinions prepared by participants of the meeting, focusing on the most promising areas of research, immediate and future goals for the field, and the potential for hormesis theory to inform tDCS research...
January 2017: Dose-response: a Publication of International Hormesis Society
https://www.readbyqxmd.com/read/28208390/geometry-and-design-of-origami-bellows-with-tunable-response
#13
Austin Reid, Frederic Lechenault, Sergio Rica, Mokhtar Adda-Bedia
Origami folded cylinders (origami bellows) have found increasingly sophisticated applications in space flight and medicine. In spite of this interest, a general understanding of the mechanics of an origami folded cylinder has been elusive. With a newly developed set of geometrical tools, we have found an analytic solution for all possible cylindrical rigid-face states of both Miura-ori and triangular tessellations. Although an idealized bellows in both of these families may have two allowed rigid-face configurations over a well-defined region, the corresponding physical device, limited by nonzero material thickness and forced to balance hinge and plate-bending energy, often cannot stably maintain a stowed configuration...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28207602/spreading-depolarization-monitoring-in-neurocritical-care-of-acute-brain-injury
#14
Jed A Hartings
PURPOSE OF REVIEW: Spreading depolarizations are unique in being discrete pathologic entities that are well characterized experimentally and also occur commonly in patients with substantial acute brain injury. Here, we review essential concepts in depolarization monitoring, highlighting its clinical significance, interpretation, and future potential. RECENT FINDINGS: Cortical lesion development in diverse animal models is mediated by tissue waves of mass spreading depolarization that cause the toxic loss of ion homeostasis and limit energy substrate supply through associated vasoconstriction...
February 14, 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28202365/optimising-the-use-of-medicines-to-reduce-acute-kidney-injury-in-children-and-babies
#15
REVIEW
L Oni, D B Hawcutt, M A Turner, M W Beresford, S McWilliam, C Barton, B K Park, P Murray, B Wilm, I Copple, R Floyd, M Peak, A Sharma, D J Antoine
The majority of medications in children are administered in an unlicensed or off-label manner. Paediatricians are obliged to prescribe using the limited evidence available. The 2007 EU regulation on the use of paediatric drugs means pharmaceutical companies are now obliged to (and receive incentives for) contributing to paediatric drug data and carrying out paediatric clinical trials. This is important, as the efficacy and adverse effect profiles of medicines vary across childhood. Additionally, there are significant age-related changes in the pharmacodynamic and pharmacokinetic activity of many drugs...
February 12, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28198517/a-monte-carlo-study-for-optimizing-the-detector-of-spect-imaging-using-a-xcat-human-phantom
#16
Mohammad Khoshakhlagh, Jalil Pirayesh Islamian, Seyyed Mohammad Abedi, Babak Mahmoudian, Masoud Shayesteh Azar
BACKGROUND: Acquiring a high quality image has assigned an important concern for obtaining accurate diagnosis in nuclear medicine. Detector is a critical component of Single Photon Emission Computed Tomography (SPECT) imaging system for giving accurate information from exact pattern of radionuclide distribution in the target organ. The images are strongly affected by the attenuation, scattering, and response of the detector. The conventional detector is mainly made from sodium iodide activated by thallium [NaI(Tl)] in nuclear medicine imaging...
2017: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/28196456/toxicity-of-internalized-laser-generated-pure-silver-nanoparticles-to-the-isolated-rat-hippocampus-cells
#17
Canan Kursungoz, Sadık Taşkın Taş, Mustafa F Sargon, Yıldırım Sara, Bülend Ortaç
Silver nanoparticles (AgNPs) are the most commonly used nanoparticles (NPs) in medicine, industry and cosmetics. They are generally considered as biocompatible. However, contradictory reports on their biosafety render them difficult to accept as 'safe'. In this study, we evaluated the neurotoxicity of direct AgNP treatment in rat hippocampal slices. We produced pure uncoated AgNPs by a pulsed laser ablation method. NP characterization was performed by Ultraviolet (UV) visible spectrophotometer, scanning electron microscope, transmission electron microscope (TEM) and energy-dispersive X-ray spectroscopy...
January 1, 2017: Toxicology and Industrial Health
https://www.readbyqxmd.com/read/28185475/4d-flow-magnetic-resonance-imaging-role-in-pediatric-congenital-heart-disease
#18
Claire M Lawley, Kathryn M Broadhouse, Fraser M Callaghan, David S Winlaw, Gemma A Figtree, Stuart M Grieve
Imaging-based evaluation of cardiac structure and function remains paramount in the diagnosis and monitoring of congenital heart disease in childhood. Accurate measurements of intra- and extracardiac hemodynamics are required to inform decision making, allowing planned timing of interventions prior to deterioration of cardiac function. Four-dimensional flow magnetic resonance imaging is a nonionizing noninvasive technology that allows accurate and reproducible delineation of blood flow at any anatomical location within the imaging volume of interest, and also permits derivation of physiological parameters such as kinetic energy and wall shear stress...
January 1, 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28183595/carbon-nanotube-as-a-carrier-in-drug-delivery-system-for-carnosine-dipeptide-a-computer-simulation-study
#19
Sepideh Ketabi, Leila Rahmani
Biological application of carbon nanotube in drug delivery is our main concern in this investigation. For this purpose interaction of carnosine and carbon nanotube was studied in both gas phase and separately in aqueous media. Three possible interactions of carnosine dipeptide with (5,5) carbon nanotube in physiological media were considered. At first step each species were modeled using quantum mechanical calculations, in the next step, their properties in aqueous solution were studied by applying Monte Carlo simulations...
April 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28181555/determination-of-biological-activity-of-gonadotropins-hcg-and-fsh-by-f%C3%A3-rster-resonance-energy-transfer-based-biosensors
#20
Olga Mazina, Anni Allikalt, Juha S Tapanainen, Andres Salumets, Ago Rinken
Determination of biological activity of gonadotropin hormones is essential in reproductive medicine and pharmaceutical manufacturing of the hormonal preparations. The aim of the study was to adopt a G-protein coupled receptor (GPCR)-mediated signal transduction pathway based assay for quantification of biological activity of gonadotropins. We focussed on studying human chorionic gonadotropin (hCG) and follicle-stimulating hormone (FSH), as these hormones are widely used in clinical practice. Receptor-specific changes in cellular cyclic adenosine monophosphate (cAMP, second messenger in GPCR signalling) were monitored by a Förster resonance energy transfer (FRET) biosensor protein (T)Epac(VV) in living cells upon activation of the relevant gonadotropin receptor...
February 9, 2017: Scientific Reports
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