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https://www.readbyqxmd.com/read/29151278/tetrahydrobiopterin-bh4-targeting-endothelial-nitric-oxide-synthase-as-a-potential-therapy-for-pulmonary-hypertension
#1
Bahaa N Francis, Maram Salameh, Rola Khamisy-Farah, Raymond Farah
PURPOSE: Pulmonary Hypertension (PH) is complex disease which is associated with endothelial and cardiac dysfunction. Tetrahydrobiopterin (BH4 ) regulates endothelial nitric oxide synthase (eNOS) to produce nitric oxide rather than superoxide which maintains normal endothelial and cardiac function. This study explores the therapeutic potential of BH4 in experimental PH. METHODS: Monocrotaline-induced PH in rats and Hph-1 deficiency in mice were used for animal experiments...
November 19, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/29151273/post-treatment-with-methylene-blue-is-effective-against-delayed-encephalopathy-after-acute-carbon-monoxide-poisoning
#2
Ningjun Zhao, Pengchong Liang, Xiaoying Zhuo, Chenglei Su, Xuemei Zong, Bingnan Guo, Han Dong, Xianliang Yan, Shuqun Hu, Quanguang Zhang, Xu Tie
Delayed encephalopathy after acute carbon monoxide (CO) poisoning (DEACMP) is the most severe and clinically intractable complication that occurs following acute carbon monoxide poisoning. Unfortunately, the mechanism of DEACMP is still vague. Growing evidence indicates that delayed cerebral damage following CO poisoning is related to oxidative stress, abnormal neuro-inflammation, apoptosis and immune-mediated injury. Our recent report indicated that methylene blue (MB) may be a promising therapeutic agent in the prevention of neuronal cell death and cognitive deficits following transient global cerebral ischaemia (GCI)...
November 19, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29151254/evaluation-of-the-implementation-of-hospital-antibiotic-policy-in-oncosurgery-ward-a-six-year-experience
#3
Aneta Nitsch-Osuch, Damian Okruciński, Magdalena Dawgiałło, Izabela Gołębiak, Ernest Kuchar
The hospital antibiotic policy should be implemented to rationalize the antibiotic use and to decrease the risk of spread of resistant bacteria. The aim of this study was to describe the antibiotic consumption patterns in a single oncosurgery ward before and after the implementation of hospital antibiotic policy. We conducted a retrospective analysis of the antibiotic use at the oncosurgery ward in Warsaw, Poland, in the years 2011-2016. Calculations were based on daily defined doses (DDD), DDD/100 hospitalizations, and DDD/100 person-days...
November 19, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29151253/a-two-week-fecal-microbiota-transplantation-course-in-pediatric-patients-with-inflammatory-bowel-disease
#4
Katarzyna Karolewska-Bochenek, Pawel Grzesiowski, Aleksandra Banaszkiewicz, Agnieszka Gawronska, Maria Kotowska, Marcin Dziekiewicz, Piotr Albrecht, Andrzej Radzikowski, Izabella Lazowska-Przeorek
Dysbiosis plays a major role in the etiology of inflammatory bowel disease (IBD). Fecal microbiota transplantation (FMT) is a new promising option for IBD treatment. We aimed to assess the effectiveness of a two-week FMT course in children with IBD. Ten patients, 10-17 years of age with moderate to severe IBD received a course of eight doses of freshly prepared FMT via a naso-duodenal tube or gastroscopy. All of the patients had pancolitis. There were eight cases of ulcerative colitis (UC) and two of Crohn's disease (CD)...
November 19, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29151250/mudskipper-boleophthalmus-pectinirostris-hepcidin-1-and-hepcidin-2-present-different-gene-expression-profile-and-antibacterial-activity-and-possess-distinct-protective-effect-against-edwardsiella-tarda-infection
#5
Jie Chen, Li Nie, Jiong Chen
Hepcidins are small cysteine-rich antimicrobial peptides that play an important role in fish immunity against pathogens. Most fish species have two or more hepcidin homologs that have distinct functions. This study investigated the immune functions of mudskipper (Boleophthalmus pectinirostris) hepcidin-1 (BpHep-1) and hepcidin-2 (BpHep-2) in vitro and in vivo. Upon infection with Edwardsiella tarda, the expression of BpHep-1 and BpHep-2 mRNA in immune tissues was significantly upregulated, but the expression profiles were different...
November 18, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/29151238/predictability-of-hypoadrenalism-occurrence-and-duration-after-adrenalectomy-for-acth-independent-hypercortisolism
#6
V Morelli, L Minelli, C Eller-Vainicher, S Palmieri, E Cairoli, A Spada, M Arosio, I Chiodini
OBJECTIVE: To evaluate if the parameters of hypothalamic-pituitary-adrenal (HPA) axis activity could predict the occurrence and duration of post-surgical hypocortisolism (PSH) in patients with Cushing's syndrome (CS) and with adrenal incidentaloma (AI). METHODS: We studied 80 patients (54 females, age 53.3 ± 11 years), who underwent adrenalectomy for CS (17 patients) or for AI (53 patients). Before surgery, we measured adrenocorticotroph hormone (ACTH), urinary free cortisol (UFC) and serum cortisol after 1 mg dexamethasone suppression test (1 mg-DST) levels...
November 18, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29151227/significance-of-prostate-specific-antigen-kinetics-after-three-dimensional-conformal-radiotherapy-with-androgen-deprivation-therapy-in-patients-with-localized-prostate-cancer
#7
Wataru Fukuokaya, Sangji Kim, Takao Natsuyama, Kanako Matsuzaki, Homare Shiomi, Hiroki Kitoh, Nobuko Utsumi, Hiromasa Kurosaki, Masafumi Inoue, Koichiro Akakura
BACKGROUND: To evaluate the relationship between biochemical recurrence and post-radiation prostate-specific antigen (PSA) kinetics in patients with localized prostate cancer treated by radiotherapy with various durations of androgen deprivation therapy (ADT). METHODS: We reviewed our single-institution, retrospectively maintained data of 144 patients with T1c-T3N0M0 prostate cancer who underwent three-dimensional conformal radiotherapy (3D-CRT) between December 2005 and December 2015 and 113 patients were fulfilled the inclusion criteria...
November 18, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29151196/oral-cancer-radiotherapy-affects-enamel-microhardness-and-associated-indentation-pattern-morphology
#8
R Seyedmahmoud, Y Wang, G Thiagarajan, J P Gorski, R Reed Edwards, J D McGuire, M P Walker
OBJECTIVES: The aim of this study is to determine the effects of in vitro and in vivo high-dose radiotherapy on microhardness and associated indentation pattern morphology of enamel. MATERIALS AND METHODS: The inner, middle, and outer microhardness of enamel was evaluated using three experimental groups: control (non-radiated); in vitro irradiated; in vivo irradiated. In vitro specimens were exposed to simulated radiotherapy, and in vivo specimens were extracted teeth from oral cancer patients previously treated with radiotherapy...
November 18, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29151192/impact-of-oral-ketamine-augmentation-on-hospital-admissions-in-treatment-resistant-depression-and-ptsd-a-retrospective-study
#9
John Hartberg, Simone Garrett-Walcott, Angelo De Gioannis
RATIONALE: Depressive episodes are the leading cause of mental health-related hospital admissions in Australia, and 44% of those admitted have a previous history of hospitalisations for depression (Admitted patient mental health-related care: (Australian Institute of Health and Welfare Aust Hospital Stat 2011-12, 2013). Despite numerous available antidepressant treatments, many patients do not respond to conventional therapy, having what is called 'treatment resistance' (Fava Biol Psychiatry 53:649-659, 2003)...
November 18, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/29151191/silica-nanoparticle-exposure-inducing-granulosa-cell-apoptosis-and-follicular-atresia-in-female-balb-c-mice
#10
Jianhui Liu, Man Yang, Li Jing, Lihua Ren, Jialiu Wei, Jin Zhang, Feng Zhang, Junchao Duan, Xianqing Zhou, Zhiwei Sun
Given that the effects of ultrafine fractions (< 0.1 μm) on reproductive diseases are gaining attention, this study aimed to explore the influence of silica nanoparticle (SiNP)-induced female reproductive dysfunction. In this study, 80 female mice were randomly divided into four groups including a control group and three concentrations of SiNP groups (7, 21, 35 mg/kg). Mice were exposed to the vehicle control and silica nanoparticles by tracheal perfusion every 3 days a total of five times in 15 days...
November 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29151151/long-term-treatment-of-diabetic-rats-with-vanadyl-sulfate-or-insulin-attenuate-acute-focal-cerebral-ischemia-reperfusion-injury-via-their-antiglycemic-effect
#11
Hossein Ahmadi-Eslamloo, Gholam Abbas Dehghani, Seyed Mostafa Shid Moosavi
It is well-known that patients with diabetes mellitus have worse clinical outcomes following acute ischemic stroke. The intensifying effects of diabetes on ischemic brain injury have been shown to be mostly due to hyperglycemia, rather than the lack of insulin direct effects on brain. It is also well-approved that vanadium compounds have insulin-like and anti-diabetic effects, and the present study was designed to compare the protective effects of diabetes treatment with vanadium or insulin on ischemic/reperfused brain injury...
November 19, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29151145/pendimethalin-induces-oxidative-stress-dna-damage-and-mitochondrial-dysfunction-to-trigger-apoptosis-in-human-lymphocytes-and-rat-bone-marrow-cells
#12
Sabiha M Ansari, Quaiser Saquib, Sabry M Attia, Eslam M Abdel-Salam, Hend A Alwathnani, Mohammad Faisal, Abdulrahman A Alatar, Abdulaziz A Al-Khedhairy, Javed Musarrat
Pendimethalin (PM) is a dinitroaniline herbicide extensively applied against the annual grasses and broad-leaved weeds. There is no report available on PM-induced low-dose genotoxicity in human primary cells and in vivo test models. Such data gap has prompted us to evaluate the genotoxic potential of PM in human lymphocytes and rats. PM selectively binds in the minor groove of DNA by forming covalent bonds with G and C nitrogenous bases, as well as with the ribose sugar. PM induces micronucleus formation (MN) in human lymphocytes, indicating its clastogenic potential...
November 18, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/29151116/do-alpha-1-antagonist-medications-affect-the-success-of-semi-rigid-ureteroscopy-a-prospective-randomised-single-blind-multicentric-study
#13
Mustafa Aydın, Muhammet Fatih Kılınç, Abdulmecit Yavuz, Göksel Bayar
The objective of this study is to assess the efficacy of adjunctive silodosin therapy in improving the success rate of semi-rigid ureteroscopy for removing ureteral stones. Prospective randomised controlled clinical trial performed between July 2016 and September 2016. All the patients underwent ureteroscopic holmium lithotripsy with a YAG laser. The patients were randomised into one of three groups: those who did not use an alpha-1 blocker (AB) (Group 1, n = 50), those who used an AB for one day (Group 2, n = 50), and those who used an AB for three days (Group 3, n = 47)...
November 18, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29151078/therapeutic-effect-of-exogenous-ghrelin-in-the-healing-of-gingival-ulcers-is-mediated-by-the-release-of-endogenous-growth-hormone-and-insulin-like-growth-factor-1
#14
J Cieszkowski, Z Warzecha, P Ceranowicz, D Ceranowicz, B Kusnierz-Cabala, M Pedziwiatr, M Dembinski, T Ambrozy, T Kaczmarzyk, M Pihut, M Wieckiewicz, R Olszanecki, A Dembinski
Ghrelin, an acylated 28-amino acid polypeptide, was primary isolated from the stomach, and the stomach is a main source of circulating ghrelin. Ghrelin strongly and dose-dependently stimulates release of growth hormone from the anterior pituitary, as well as increases food intake and fat deposition. Previous studies showed that ghrelin exhibits protective and therapeutic effect in different parts of the gastrointestinal system, including the oral cavity. The aim of present study was to examine the role of growth hormone and insulin-like growth factor-1 (IGF-1) in the healing of gingival ulcers...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151073/effect-of-the-different-doses-of-acrylamide-on-acetylocholinoesterase-activity-thiol-groups-malondialdehyde-concentrations-in-hypothalamus-and-selected-muscles-of-mice
#15
M Kopanska, J Czech, P Zagata, L Dobrek, P Thor, G Formicki
Acrylamide is a chemical compound that typically forms in starchy food products during high-temperature cooking, including frying, baking and roasting. Acrylamide is a known lethal neurotoxin. Its discovery in some cooked starchy foods in 2002 prompted concerns about the carcinogenicity of those foods. Little is known about acrylamide's influence on the peripheral nerves. In our research we measured acrylamide's influence on the acetylcholinesterase activity in hypothalamus, heart muscle, skeletal muscles of the thigh and smooth muscle of the small intestine (males, Swiss strain) in relation to the thiol groups and malondialdehyde concentration...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151071/an-observational-cohort-study-of-3-units-versus-5-units-slow-intravenous-bolus-oxytocin-in-women-undergoing-elective-caesarean-delivery
#16
N Terblanche, P Otahal, A Messmer, P Wright, S Patel, K Nathan, J E Sharman
This study sought to compare postpartum blood loss and maternal outcomes after 3IU and 5IU oxytocin at elective caesarean delivery. In a prospective observational study, 73 women undergoing elective caesarean delivery under spinal anaesthetic received a slow I.V. injection of either 3IU (n = 35) or 5IU (n = 38) oxytocin after delivery. The main outcome was gravimetrically measured 24-hour postpartum blood loss with a non-inferiority margin of 300 mL. Uterine tone, phenylephrine dose, emesis and hypotension after oxytocin administration were secondary outcomes...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151017/neuroleptic-malignant-syndrome-following-bilateral-cemented-total-hip-replacements
#17
Usman Halim, Sanil Ajwani, Martyn Lovell
Neuroleptic malignant syndrome (NMS) is a rare, serious complication caused by neuroleptic medications. It is characterized by rigidity, hyperthermia, tachycardia, leukocytosis, and an elevated creatine kinase (CK). We present a case of a 50-year-old male who underwent bilateral total hip replacements and subsequently developed NMS. This condition is typically triggered by the sudden introduction, omission, or change in dose of a neuroleptic; in contrast with previous case reports of post-surgical NMS, however, no such trigger was identifiable for our patient...
December 2017: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/29150956/sewage-sludge-biochars-management-ecotoxicity-mobility-of-heavy-metals-and-soil-microbial-biomass
#18
Monika Mierzwa-Hersztek, Krzysztof Gondek, Agnieszka Klimkowicz-Pawlas, Agnieszka Baran, Tomasz Bajda
Production of biochar from sewage sludge may be a promising solution for sewage sludge management and improvement of soil properties, including carbon dioxide sequestration. The aim of the study was to compare the effects of biochars derived from different sewage sludges on soil physicochemical and biological properties, ecotoxicity and plant yield. Three biochars (produced at a temperature of 300 °C) were applied into sandy acid soil in doses of 0.5%, 1% and 2% (w/w). Depending on the kind and dose, the application of sewage sludge biochars into the soil caused diverse effects on the parameters of soil biological activity (microbial biomass, soil respiration, and value of metabolic quotient)...
November 18, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29150952/ck-2127107-amplifies-skeletal-muscle-response-to-nerve-activation-in-humans
#19
Jinsy A Andrews, Timothy M Miller, Vipin Vijayakumar, Randall Stoltz, Joyce K James, Lisa Meng, Andrew A Wolff, Fady I Malik
INTRODUCTION: Three studies evaluated safety, tolerability, pharmacokinetics, and pharmacodynamics of CK-2127107 (CK-107), a next-generation fast skeletal muscle troponin activator (FSTA), in healthy subjects. We tested the hypothesis that CK-107 would amplify the force-frequency response of muscle in humans. METHODS: To assess the force-frequency response, subjects received single doses of CK-107 and placebo in a randomized, double-blind, 4-period, crossover study...
November 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/29150942/a-novel-epididymal-quiescence-factor-inhibits-sperm-motility-by-modulating-nos-activity-and-intracellular-no-cgmp-pathway
#20
Prasanta Ghosh, Sandipan Mukherjee, Arpita Bhoumik, Sandhya Rekha Dungdung
Mature and potentially motile spermatozoa stored in cauda epididymis in an inactive state for approximately 30 days; however during ejaculation they regain motility. To understand the actual molecular mechanism of the sperm quiescence during caudal stay, a proteinaceous quiescence factor (QF) has been purified from caprine epididymal plasma to apparent homogeneity. In the present study complete purification, detailed characterization as well as mechanistic pathway of QF has been described. QF was purified to 215 fold with 45% activity recovery...
November 18, 2017: Journal of Cellular Physiology
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