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https://www.readbyqxmd.com/read/28438013/characterization-of-newly-bred-cordyceps-militaris-strains-for-higher-production-of-cordycepin-through-hplc-and-urp-pcr-analysis
#1
Hyun-Hee Lee, Naru Kang, Inmyoung Park, Jungwook Park, Inyoung Kim, Jieun Kim, Namgyu Kim, Jae-Yun Lee, Young-Su Seo
Cordyceps militaris, a member of Ascomycota, a mushroom referred to as caterpillar Dong-chung-ha-cho, is commercially valuable because of its high content of bioactive substances including cordycepin and its potential for artificial cultivation. Cordycepin (3'-deoxyadenosine) is highly associated with the pharmacological effects of C. militaris. C. militaris is heterothallic in that two mating type loci, idiomorph MAT1-1 and MAT1-2, exist discretely in two different spores. In this study, nine C. militaris strains were mated with each other to prepare new strains that produced a larger amount of cordycepin than the parent strains...
April 25, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28437888/protective-effects-of-tranilast-on-experimental-colitis-in-rats
#2
Yoshiki Seto, Kouki Kato, Ryota Tsukada, Hiroki Suzuki, Yuuki Kaneko, Yoshiki Kojo, Hideyuki Sato, Satomi Onoue
The present study aimed to verify the efficacy of tranilast (TL) for treating inflammatory bowel disease (IBD) with the use of an experimental colitis model. The experimental colitis model was prepared by intrarectal instillation of 2,4,6-trinitrobenzenesulfonic acid (TNBS; 40mg/kg) dissolved in water containing 25% ethanol. The pharmacological effects of TL after repeated oral administration were evaluated by biomarker and histological analyses, and the pharmacokinetic behavior of TL was also examined after single oral administration...
April 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28437853/inhibition-of-tgf-%C3%AE-signaling-promotes-expansion-of-human-epidermal-keratinocytes-in-feeder-cell-co-culture
#3
Daisuke Suzuki, Filipa Pinto, Makoto Senoo
Cultured epidermal autografts have been used worldwide since 1981 for patients with extensive third-degree burn wounds and limited skin donor sites. Despite significant progress in techniques toward improving clinical outcome of skin grafts, the long in vitro preparation time of cultured autografts has remained a major factor limiting its widespread use. Here, we show that pharmacological inhibition of TGF-β signaling promotes the expansion of human epidermal keratinocytes (HEKs) with high proliferative potential in co-cultures with both murine 3T3-J2 cells and human feeder cells, including dermal fibroblasts and preadipocytes...
April 24, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28437842/autoimmune-like-chronic-hepatitis-induced-by-olmesartan
#4
Sandrine Barge, Marianne Ziol, Jean-Charles Nault
Drug liver-induced injury (DILI) due to minocyclin, alpha methyldopa or nitrofurantoin may be responsible for chronic liver damage that mimic the biological and/or histological features of chronic autoimmune hepatitis and, in rare cases, progresses to cirrhosis(1). Olmesartan medoxomil is an antihypertensive drug that acts by blocking the angiotensin II receptor and is metabolized into its pharmacologically active form, olmesartan, in the intestine and in the liver before being released into the systemic circulation...
April 24, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28437835/pten-downregulation-promotes-%C3%AE-oxidation-to-fuel-hypertrophic-liver-growth-after-hepatectomy-in-mice
#5
Ekaterina Kachaylo, Christoph Tschuor, Nicolas Calo, Nathalie Borgeaud, Perparim Limani, Anne-Christine Piguet, Jean-Francois Dufour, Michelangelo Foti, Rolf Graf, Pierre A Clavien, Bostjan Humar
In regenerating liver, hepatocytes accumulate lipids before the major wave of parenchymal growth. This transient, regeneration-associated steatosis (TRAS) is required for liver recovery, but its purpose is unclear. The tumor suppressor PTEN is a key inhibitor of the AKT-mTOR axis that regulates growth and metabolic adaptations after hepatectomy. In quiescent liver, PTEN causes pathological steatosis when lost, while its role in regenerating liver remains unknown. Here, we show that PTEN downregulation promotes liver growth in a TRAS-dependent way...
April 24, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28437824/-neuromodulation-for-the-treatment-of-chronic-pain-what-is-useful
#6
Volker Tronnier
Neuromodulatory techniques have replaced the earlier performed neurolesional procedures to treat chronic pain syndromes with only a few exceptions. Nevertheless these procedures are invasive with respective risks and complications and therefore conservative physical, psychological pharmacological as well as interventional treatments should be performed first. Because this therapy is costly, the indication has to be proven carefully with a strict patient selection and also the long-term results have to be considered...
April 2017: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/28437655/peripheral-artery-disease-redox-signaling-oxidative-stress-basic-and-clinical-aspects
#7
REVIEW
Sebastian Steven, Andreas Daiber, Jörn F Dopheide, Thomas Münzel, Christine Espinola-Klein
Reactive oxygen and nitrogen species (ROS and RNS, e.g. H2O2, nitric oxide) confer redox regulation of essential cellular signaling pathways such as cell differentiation, proliferation, migration and apoptosis. At higher concentrations, ROS and RNS lead to oxidative stress and oxidative damage of biomolecules (e.g. via formation of peroxynitrite, fenton chemistry). Peripheral artery disease (PAD) is characterized by severe ischemic conditions in the periphery leading to intermittent claudication and critical limb ischemia (end stage)...
April 13, 2017: Redox Biology
https://www.readbyqxmd.com/read/28437599/human-%C3%AE-defensin-3-induces-il-8-release-and-apoptosis-in-airway-smooth-muscle-cells
#8
Weijia Wang, Xiaoyan Qu, Xiaomin Dang, Dong Shang, Liang Yang, Ying Li, Dan Xu, James G Martin, Qutayba Hamid, Jiankang Liu, Ying Chang
BACKGROUND: Human airway smooth muscle cells (ASMCs) may have a pro-inflammatory role through the release of inflammatory mediators. Increasing evidence indicates that human β-defensins (HBDs) are related to pathogenesis of asthma. OBJECTIVES: To examine the plasma level of HBD-1, -2 and -3 in asthmatic patients and the expression of their mouse orthologs in the lung tissue of a mouse model of chronic severe asthma. Further to investigate the effect of HBD-3 on the release of the pro-inflammatory cytokine IL-8 and to explore the mechanisms...
April 24, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28437485/t-cell-function-is-dispensable-for-intracranial-aneurysm-formation-and-progression
#9
Haruka Miyata, Hirokazu Koseki, Katsumi Takizawa, Hidetoshi Kasuya, Kazuhiko Nozaki, Shuh Narumiya, Tomohiro Aoki
Given the social importance of intracranial aneurysm as a major cause of a lethal subarachnoid hemorrhage, clarification of mechanisms underlying the pathogenesis of this disease is essential for improving poor prognosis once after rupture. Previous histopathological analyses of human aneurysm walls have revealed the presence of T cells in lesions suggesting involvement of this type of cell in the pathogenesis. However, it remains unclear whether T cell actively participates in intracranial aneurysm progression...
2017: PloS One
https://www.readbyqxmd.com/read/28437285/monitoring-protein-unbound-valproic-acid-serum-concentrations-in-clinical-practice
#10
Eveline Wallenburg, Bas Klok, Karin de Jong, Monique de Maat, Nielka van Erp, Sonja Stalpers-Konijnenburg, Guus Essink, Matthijs van Luin
BACKGROUND: Valproic acid (VPA) is an effective anti-epileptic drug and mood stabilizer. A key characteristic of VPA is its high and saturable protein binding at higher concentrations. While the unbound concentration of VPA is responsible for its pharmacological activity, total drug concentrations are monitored in routine clinical practice. Therapeutic drug monitoring (TDM) of unbound VPA is recommended for specific clinical situations. The goal of this study was to evaluate TDM requests for unbound VPA in clinical practice...
April 6, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28437207/persistent-delirium-in-chronic-critical-illness-as-a-prodrome-syndrome-before-death
#11
Anna DeForest, Craig D Blinderman
BACKGROUND: Chronic critical illness (CCI) patients have poor functional outcomes, high risk of mortality, and significant sequelae, including delirium and cognitive dysfunction. The prognostic significance of persistent delirium in patients with CCI has not been well described. OBJECTIVE: We report a case of a patient with CCI following major cardiac surgery who was hemodynamically stable following a long course in the cardiothoracic intensive care unit (CTICU), but had persistent and unremitting delirium...
February 21, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28437188/further-characterization-of-the-mitigation-of-radiation-lethality-by-protective-wounding
#12
Joseph R Dynlacht, Joy Garrett, Rebecca Joel, Katharina Lane, Marc S Mendonca, Christie M Orschell
There continues to be a major effort in the United States to develop mitigators for the treatment of mass casualties that received high-intensity acute ionizing radiation exposures from the detonation of an improvised nuclear device during a radiological terrorist attack. The ideal countermeasure should be effective when administered after exposure, and over a wide range of absorbed doses. We have previously shown that the administration of a subcutaneous incision of a defined length, if administered within minutes after irradiation, protected young adult female C57BL/6 mice against radiation-induced lethality, and increased survival after total-body exposure to an LD50/30 X-ray dose from 50% to over 90%...
April 24, 2017: Radiation Research
https://www.readbyqxmd.com/read/28437017/determination-of-the-enantiomeric-purity-of-the-selective-dopamine-transporter-inhibitor-r-r-4-2-benzhydryloxyethyl-1-4-fluorobenzyl-piperidin-3-ol
#13
Patrick Neiens, Georg Höfner, Klaus T Wanner
(+)-R,R-D-84 ((+)-R,R-4-(2-benzhydryloxyethyl)-1-(4-fluorobenzyl)piperidin-3-ol) is a promising pharmacological tool for the dopamine transporter (DAT), due to its high affinity and selectivity for this target. In this study, an analytical method to ascertain the enantiomeric purity of this compound was established. For this purpose, a high-performance liquid chromatographic (HPLC) method, based on a cellulose derived chiral stationary phase (CSP) was developed. The method was characterized concerning its specificity, linearity, and range...
April 24, 2017: Chirality
https://www.readbyqxmd.com/read/28436957/pyruvate-kinase-m2-activation-may-protect-against-the-progression-of-diabetic-glomerular-pathology-and-mitochondrial-dysfunction
#14
Weier Qi, Hillary A Keenan, Qian Li, Atsushi Ishikado, Aimo Kannt, Thorsten Sadowski, Mark A Yorek, I-Hsien Wu, Samuel Lockhart, Lawrence J Coppey, Anja Pfenninger, Chong Wee Liew, Guifen Qiang, Alison M Burkart, Stephanie Hastings, David Pober, Christopher Cahill, Monika A Niewczas, William J Israelsen, Liane Tinsley, Isaac E Stillman, Peter S Amenta, Edward P Feener, Matthew G Vander Heiden, Robert C Stanton, George L King
Diabetic nephropathy (DN) is a major cause of end-stage renal disease, and therapeutic options for preventing its progression are limited. To identify novel therapeutic strategies, we studied protective factors for DN using proteomics on glomeruli from individuals with extreme duration of diabetes (ł50 years) without DN and those with histologic signs of DN. Enzymes in the glycolytic, sorbitol, methylglyoxal and mitochondrial pathways were elevated in individuals without DN. In particular, pyruvate kinase M2 (PKM2) expression and activity were upregulated...
April 24, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28436718/design-of-a-novel-curcumin-soybean-phosphatidylcholine-complex-based-targeted-drug-delivery-systems
#15
Jiajiang Xie, Yanxiu Li, Liang Song, Zhou Pan, Shefang Ye, Zhenqing Hou
Recently, the global trend in the field of nanomedicine has been toward the design of combination of nature active constituents and phospholipid (PC) to form a therapeutic drug-phospholipid complex. As a particular amphiphilic molecular complex, it can be a unique bridge of traditional dosage-form and novel drug delivery system. In thisarticle, on the basis of drug-phospholipid complex technique and self-assembly technique, we chose a pharmacologically safe and low toxic drug curcumin (CUR) to increase drug-loading ability, achieve controlled/sustained drug release and improve anticancer activity...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28436712/disposition-and-metabolism-of-14-c-galunisertib-a-tgf-%C3%AE-ri-kinase-alk5-inhibitor-following-oral-administration-in-healthy-subjects-and-mechanistic-prediction-of-the-effect-of-itraconazole-on-galunisertib-pharmacokinetics
#16
Kenneth C Cassidy, Ivelina Gueorguieva, Colin Miles, Jessica Rehmel, Ping Yi, William J Ehlhardt
The disposition and metabolism of galunisertib (LY2157299 monohydrate, a TGF-βRI Kinase/ALK5 Inhibitor) was characterized following a single oral dose of 150 mg of [(14)C]-galunisertib (100 µCi) to six healthy human subjects. The galunisertib plasma half-life was 8.6 h, while the (14)C half-life was 10.0 h. Galunisertib was abundant in circulation (40.3% of the (14)C AUC0-24h), with 7 additional metabolites detected in plasma. Two metabolites LSN3199597 (M5, mono-oxidation), and M4 (glucuronide of M3) were the most abundant circulating metabolites (10...
April 24, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28436705/pharmacologically-increasing-collateral-perfusion-during-acute-stroke-using-a-carboxyhemoglobin-gas-transfer-agent-sanguinate%C3%A2-in-spontaneously-hypertensive-rats
#17
Marilyn J Cipolla, Italo Linfante, Abe Abuchowski, Ronald Jubin, Siu-Lung Chan
Similar to patients with chronic hypertension, spontaneously hypertensive rats (SHR) develop fast core progression during middle cerebral artery occlusion (MCAO) resulting in large final infarct volumes. We investigated the effect of Sanguinate™ (SG), a PEGylated carboxyhemoglobin (COHb) gas transfer agent, on changes in collateral and reperfusion cerebral blood flow and brain injury in SHR during 2 h of MCAO. SG (8 mL/kg) or vehicle ( n = 6-8/group) was infused i.v. after 30 or 90 min of ischemia with 2 h reperfusion...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28436684/serenoa-repens-for-lower-urinary-tract-symptoms-benign-prostatic-hyperplasia-current-evidence-and-its-clinical-implications-in-naturopathic-medicine
#18
Soo Liang Ooi, Sok Cheon Pak
OBJECTIVES: Benign prostatic hyperplasia (BPH) commonly affects men above 40 years old. The progression of BPH is often accompanied with lower urinary tract symptoms (LUTS) that can significantly affect the quality of life of the patients. Serenoa repens (saw palmetto) is a popular herbal remedy indicated for LUTS/BPH. We reviewed the current research on the efficacy of S. repens on LUTS/BPH as a monotherapy as well as combination therapies. DESIGN: Non-systematic searches were performed in PubMed for human studies and systematic reviews on the topic...
April 24, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28436609/a-semi-automated-approach-to-create-purposeful-mechanistic-datasets-from-heterogeneous-data-data-mining-towards-the-in-silico-predictions-for-oestrogen-receptor-modulation-and-teratogenicity
#19
M Bashir Surfraz, Adrian Fowkes, Jeffrey P Plante
The need to find an alternative to costly animal studies for developmental and reproductive toxicity testing has shifted the focus considerably to the assessment of in vitro developmental toxicology models and the exploitation of pharmacological data for relevant molecular initiating events. We hereby demonstrate how automation can be applied successfully to handle heterogeneous oestrogen receptor data from ChEMBL. Applying expert-derived thresholds to specific bioactivities allowed an activity call to be attributed to each data entry...
April 24, 2017: Molecular Informatics
https://www.readbyqxmd.com/read/28436464/glucose-dependent-regulation-of-pregnane-x-receptor-is-modulated-by-amp-activated-protein-kinase
#20
Peter O Oladimeji, Wenwei Lin, C Trent Brewer, Taosheng Chen
Pregnane X receptor (PXR) is a xenobiotic receptor that regulates the detoxification and clearance of drugs and foreign compounds from the liver. There has been mounting evidence of crosstalk between the drug metabolism pathway and the energy metabolism pathway, but little is known about this cross-regulation. To further delineate the energy metabolism and drug metabolism crosstalk in this study, we exposed HepG2 cells to varying glucose concentrations. We observed that PXR activity was induced under high-glucose conditions...
April 24, 2017: Scientific Reports
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