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https://www.readbyqxmd.com/read/29352476/pharmacokinetic-profiles-of-the-active-metamizole-metabolites-after-four-different-routes-of-administration-in-healthy-dogs
#1
M Giorgi, B Łebkowska-Wieruszewska, A Lisowski, H Owen, A Poapolathep, T W Kim, V De Vito
Metamizole (MT), an analgesic and antipyretic drug, is rapidly hydrolyzed to the active primary metabolite 4-methylaminoantipyrine (MAA) and relatively active secondary metabolite 4-aminoantipyrine (AA). The aim of this study was to assess the pharmacokinetic profiles of MAA and AA after dose of 25 mg/kg MT by intravenous (i.v.), intramuscular (i.m.), oral (p.o.), and rectal (RC) routes in dogs. Six dogs were randomly allocated to an open, single-dose, four-treatment, four-phase, unpaired, crossover study design...
January 19, 2018: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29352473/the-impact-of-mk-467-on-plasma-drug-concentrations-sedation-and-cardiopulmonary-changes-in-sheep-treated-with-intramuscular-medetomidine-and-atipamezole-for-reversal
#2
M Adam, M R Raekallio, T Keskitalo, J M Honkavaara, M Scheinin, M Kajula, S Mölsä, O M Vainio
The effect of MK-467, a peripheral α2 -adrenoceptor antagonist, on plasma drug concentrations, sedation and cardiopulmonary changes induced by intramuscular (IM) medetomidine was investigated in eight sheep. Additionally, the interactions with atipamezole (ATI) used for reversal were also evaluated. Each animal was treated four times in a randomized prospective crossover design with 2-week washout periods. Medetomidine (MED) 30 μg/kg alone or combined in the same syringe with MK-467 300 μg/kg (MMK) was injected intramuscular, followed by ATI 150 μg/kg (MED + ATI and MMK + ATI) or saline intramuscular 30 min later...
January 19, 2018: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29352150/identification-and-quantification-of-plasma-calciprotein-particles-with-distinct-physical-properties-in-patients-with-chronic-kidney-disease
#3
Yutaka Miura, Yoshitaka Iwazu, Kazuhiro Shiizaki, Tetsu Akimoto, Kazuhiko Kotani, Masahiko Kurabayashi, Hiroshi Kurosu, Makoto Kuro-O
Calciprotein particles (CPP) are solid-phase calcium-phosphate bound to serum protein fetuin-A and dispersed as colloids in the blood. Recent clinical studies indicated that serum CPP levels were increased with decline of renal function and associated with inflammation and vascular calcification. However, CPP assays used in these studies measured only a part of CPP over a certain particle size and density. Here we show that such CPP are mostly artifacts generated during processing of serum samples in vitro...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29351800/drug-resistance-genes-pvcrt-o-and-pvmdr-1-polymorphism-in-patients-from-malaria-endemic-south-western-coastal-region-of-india
#4
Shiny Joy, Benudhar Mukhi, Susanta K Ghosh, Rajeshwara N Achur, D Channe Gowda, Namita Surolia
BACKGROUND: Malaria is highly prevalent in many parts of India and is mostly caused by the parasite species Plasmodium vivax followed by Plasmodium falciparum. Chloroquine (CQ) is the first-line treatment for blood stage P. vivax parasites, but cases of drug resistance to CQ have been reported from India. One of the surveillance strategies which is used to monitor CQ drug resistance, is the analysis of single nucleotide polymorphisms (SNPs) of the associated gene markers. Susceptibility to CQ can also be determined by copy number assessment of multidrug resistant gene (mdr-1)...
January 19, 2018: Malaria Journal
https://www.readbyqxmd.com/read/29351623/development-of-sugar-chain-binding-single-chain-variable-fragment-antibody-to-adult-t-cell-leukemia-cells-using-glyco-nanotechnology-and-phage-display-method
#5
Kaname Muchima, Taro Todaka, Hiroyuki Shinchi, Ayaka Sato, Arisa Tazoe, Rikiya Aramaki, Yuhei Kakitsubata, Risa Yokoyama, Naomichi Arima, Masanori Baba, Masahiro Wakao, Yuji Ito, Yasuo Suda
Adult T-cell leukemia (ATL) is an intractable blood cancer caused by the infection of human T-cell leukemia virus type-1, and effective medical treatment is required. It is known that the structure and expression levels of cell surface sugar chains vary depending on cell states such as inflammation and cancer. Thus, it is expected that the antibody specific for ATL cell surface sugar chain would be an effective diagnostic tool and a strong candidate for the development of an anti-ATL drug. Here, we developed a stable sugar chain binding single chain variable fragment antibody (scFv) that can bind to ATL cells using a fiber type Sugar Chip and phage display method...
January 17, 2018: Journal of Biochemistry
https://www.readbyqxmd.com/read/29351567/whole-thorax-irradiation-of-non-human-primates-induces-persistent-nuclear-damage-and-gene-expression-changes-in-peripheral-blood-cells
#6
Shanaz A Ghandhi, Helen C Turner, Igor Shuryak, Gregory O Dugan, J Daniel Bourland, John D Olson, Janet A Tooze, Shad R Morton, Ines Batinic-Haberle, J Mark Cline, Sally A Amundson
We investigated the cytogenetic and gene expression responses of peripheral blood cells of non-human primates (NHP, Macaca mulatta) that were whole-thorax irradiated with a single dose of 10 Gy. In this model, partial irradiation of NHPs in the thoracic region (Whole Thorax Lung Irradiation, WTLI) allows the study of late radiation-induced lung injury, while avoiding acute radiation syndromes related to hematopoietic and gastrointestinal injury. A transient drop in circulating lymphocytes and platelets was seen by 9 days, followed by elevations in respiratory rate, circulating neutrophils, lymphocytes, and monocytes at 60-100 days, corresponding to computed tomography (CT) and histologic evidence of pneumonitis, and elective euthanasia of four animals...
2018: PloS One
https://www.readbyqxmd.com/read/29351002/protective-effect-of-the-standardized-leaf-extract-of-ginkgo-biloba-egb761-against-hypertension-induced-renal-injury-in-rats
#7
Ahmed O Abdel-Zaher, Hanan S M Farghaly, Abeer E M El-Refaiy, Ahmed M Abd-Eldayem
BACKGROUND: Ginkgo biloba leaves extract has been widely used worldwide to protect against oxidative stress-induced cell damage and improves blood circulation. METHODS: The potential protective role of the standardized leaf extract of Ginkgo biloba (EGb761) on hypertension-induced renal injury was investigated in rats. Hypertension was induced in rats by L-NAME. RESULT: Repeated treatment with EGb761 produced progressive reductions in the systolic, diastolic and mean arterial blood pressure...
January 19, 2018: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/29350448/clinical-and-genetic-associations-for-carboplatin-related-ototoxicity-in-children-treated-for-retinoblastoma-a-retrospective-noncomparative-single-institute-experience
#8
Sameh E Soliman, Crystal N D'Silva, Helen Dimaras, Irakli Dzneladze, Helen Chan, Brenda L Gallie
BACKGROUND: Children with retinoblastoma treated with carboplatin chemotherapy risk moderate to severe, irreversible hearing loss. Based on published evidence, we hypothesized that ototoxicity risk is associated with clinical parameters and variants in candidate genes in drug metabolism pathways (methyltransferases [thiopurine S-methyltransferase, TPMT] and [catechol-O-methyltransferase, COMT], and drug transporter ABCC3). PROCEDURE: We retrospectively reviewed clinical records of patients with retinoblastoma treated with carboplatin chemotherapy regarding age (at diagnosis and chemotherapy initiation), chemotherapy sessions (cycles number, drug doses, and cumulative carboplatin dose), and hearing loss (defined as ototoxicity ≥grade 2 by at least one classification system)...
January 19, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29349807/possible-role-of-plasmacytoid-dendritic-cells-in-pityriasis-lichenoides
#9
M Karouni, J Abou Rahal, M Kurban, A G Kibbi, O Abbas
BACKGROUND: Plasmacytoid dendritic cells (pDCs) and their product, type I interferons (IFNs), have been implicated in the pathogenesis of several skin disorders characterized by an interface dermatitis (ID) pattern, such as lichen planus (LP). A type I IFN signature has previously been documented in pityriasis lichenoides (PL). Although pDCs are known to be the main source and most potent producers of local type I IFNs, their role in PL has not been investigated. AIM: To investigate the role of pDCs in PL...
January 19, 2018: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29348251/reducing-cardiovascular-disparities-through-community-engaged-implementation-research-a-national-heart-lung-and-blood-institute-workshop-report
#10
George A Mensah, Richard S Cooper, Anna Maria Siega-Riz, Lisa A Cooper, Justin D Smith, C Hendricks Brown, John M Westfall, Elizabeth O Ofili, LeShawndra N Price, Sonia Arteaga, Melissa C Green Parker, Cheryl R Nelson, Bradley J Newsome, Nicole Redmond, Rebecca A Roper, Bettina M Beech, Jada L Brooks, Debra Furr-Holden, Samson Y Gebreab, Wayne H Giles, Regina Smith James, Tené T Lewis, Ali H Mokdad, Kari D Moore, Joseph E Ravenell, Al Richmond, Nancy E Schoenberg, Mario Sims, Gopal K Singh, Anne E Sumner, Roberto P Treviño, Karriem S Watson, M Larissa Avilés-Santa, Jared P Reis, Charlotte A Pratt, Michael M Engelgau, David C Goff, Eliseo J Pérez-Stable
Cardiovascular disparities remain pervasive in the United States. Unequal disease burden is evident among population groups based on sex, race, ethnicity, socioeconomic status, educational attainment, nativity, or geography. Despite the significant declines in cardiovascular disease mortality rates in all demographic groups during the last 50 years, large disparities remain by sex, race, ethnicity, and geography. Recent data from modeling studies, linked micromap plots, and small-area analyses also demonstrate prominent variation in cardiovascular disease mortality rates across states and counties, with an especially high disease burden in the southeastern United States and Appalachia...
January 19, 2018: Circulation Research
https://www.readbyqxmd.com/read/29347936/comparative-analysis-of-copd-associated-with-tobacco-smoking-biomass-smoke-exposure-or-both
#11
Jordi Olloquequi, Sergio Jaime, Viviana Parra, Elizabeth Cornejo-Córdova, Gonzalo Valdivia, Àlvar Agustí, Rafael Silva O
BACKGROUND: Exposure to noxious gases and particles contained in both tobacco smoking (TS) and biomass smoke (BS) are well recognized environmental risk factors for chronic obstructive pulmonary disease (COPD). COPD is characterized by an abnormal inflammatory response, both in the pulmonary and systemic compartments. The differential effects of TS, BS or their combined exposure have not been well characterized yet. This study sought to compare the lung function characteristics and systemic inflammatory response in COPD patients exposed to TS, BS or their combination...
January 18, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29347907/blood-lactate-is-a-predictor-of-short-term-mortality-in-patients-with-myocardial-infarction-complicated-by-heart-failure-but-without-cardiogenic-shock
#12
Grunde Gjesdal, Oscar Ö Braun, J Gustav Smith, Fredrik Scherstén, Patrik Tydén
BACKGROUND: Mortality in patients with acute myocardial infarction (AMI) has improved substantially with modern therapy including percutaneous coronary interventions (PCI) but remains high in certain subgroups such as patients presenting with overt cardiogenic shock. However, the risk for AMI in patients presenting acutely with signs of heart failure but without cardiogenic shock is less well described. We aimed to identify risk factors for mortality in AMI patients with heart failure without overt cardiogenic shock...
January 18, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29345500/effects-of-l-arginine-supplementation-on-leukogram-inflammatory-bowel-infiltrates-and-immunoglobulins-with-5-fu-use-in-rats
#13
Bianca D Balmant, Eloisa O N Araújo, Denise Yabuki, Amanda B Novais, Sandra C Genaro, Cecilia B Laposy, Paulo F I Goiozo, Marcelo G M Chacur, Rogério Giuffrida, Luis S L S Reis
This study evaluated the effects of L-arginine supplementation on blood parameters, kidney and liver function, immunoglobulins and noninflammatory infiltrates in the small intestines of rats subjected to chemotherapy with 5-fluorouracil (5-FU). Thirty-two Wistar rats were randomly distributed into 4 groups (8 rats/group): an untreated control group, and test groups receiving one dose of 5-FU (G5-FU group), one dose of 5-FU and 295 mg L-arginine/day (GArg295 group) or one dose of 5-FU and 458 mg L-arginine/day (GArg458 group)...
January 18, 2018: Nutrition and Cancer
https://www.readbyqxmd.com/read/29344587/an-exploratory-study-of-red-raspberry-rubus-idaeus-l-poly-phenols-metabolites-in-human-biological-samples
#14
Xuhuiqun Zhang, Amandeep Sandhu, Indika Edirisinghe, Britt Burton-Freeman
Red raspberry (Rubus idaeus L.) contains a variety of polyphenols including anthocyanins and ellagitannins. Red raspberry polyphenols absorbed in different forms (parent compounds, degradants or microbial metabolites) are subject to xenobiotic metabolism in the intestine, liver, and/or kidney, forming methylate, glucuronide, and sulfate conjugated metabolites. Upon acute exposure, (poly)phenol/metabolite presence in the blood depends mainly on intestinal absorption, enterohepatic circulation, and metabolism by resident microbiota...
January 18, 2018: Food & Function
https://www.readbyqxmd.com/read/29344302/evans-blue-attachment-enhances-somatostatin-receptor-subtype-2-imaging-and-radiotherapy
#15
Rui Tian, Orit Jacobson, Gang Niu, Dale O Kiesewetter, Zhantong Wang, Guizhi Zhu, Ying Ma, Gang Liu, Xiaoyuan Chen
Purpose: Radionuclide therapy directed against tumors that express somatostatin receptors (SSTRs) has proven effective for the treatment of advanced, low- to intermediate-grade neuroendocrine tumors in the clinic. In clinical usage, somatostatin peptide-based analogs, labeled with therapeutic radionuclides, provide an overall response rate of about 30%, despite the high cumulative activity injected per patient. We set out to improve the effectiveness of somatostatin radiotherapy by preparing a chemical analog that would clear more slowly through the urinary tract and, concomitantly, have increased blood circulation half-life and higher targeted accumulation in the tumors...
2018: Theranostics
https://www.readbyqxmd.com/read/29343712/zika-virus-infection-in-pregnant-rhesus-macaques-causes-placental-dysfunction-and-immunopathology
#16
Alec J Hirsch, Victoria H J Roberts, Peta L Grigsby, Nicole Haese, Matthias C Schabel, Xiaojie Wang, Jamie O Lo, Zheng Liu, Christopher D Kroenke, Jessica L Smith, Meredith Kelleher, Rebecca Broeckel, Craig N Kreklywich, Christopher J Parkins, Michael Denton, Patricia Smith, Victor DeFilippis, William Messer, Jay A Nelson, Jon D Hennebold, Marjorie Grafe, Lois Colgin, Anne Lewis, Rebecca Ducore, Tonya Swanson, Alfred W Legasse, Michael K Axthelm, Rhonda MacAllister, Ashlee V Moses, Terry K Morgan, Antonio E Frias, Daniel N Streblow
Zika virus (ZIKV) infection during pregnancy leads to an increased risk of fetal growth restriction and fetal central nervous system malformations, which are outcomes broadly referred to as the Congenital Zika Syndrome (CZS). Here we infect pregnant rhesus macaques and investigate the impact of persistent ZIKV infection on uteroplacental pathology, blood flow, and fetal growth and development. Despite seemingly normal fetal growth and persistent fetal-placenta-maternal infection, advanced non-invasive in vivo imaging studies reveal dramatic effects on placental oxygen reserve accompanied by significantly decreased oxygen permeability of the placental villi...
January 17, 2018: Nature Communications
https://www.readbyqxmd.com/read/29343313/eucalyptus-leaves-powder-antibiotic-and-probiotic-addition-to-broiler-diets-effect-on-growth-performance-immune-response-blood-components-and-carcass-traits
#17
H Mashayekhi, M Mazhari, O Esmaeilipour
The study was conducted to investigate the effects of different levels of eucalyptus powder (EP), virginiamycin and probiotic on performance, immunity, blood components and carcass traits of broiler chickens. A total of 250, 1-day-old male broiler chickens (Ross 308) were randomly allocated to five treatments with five replicates and 10 chicks each, as a completely randomized design. The dietary treatments consisted of: basal diet (BD), BD+0.25% EP, BD+0.5% EP, BD+0.01% of diet probiotic (Protexin), BD+0.02% of diet antibiotic (virginiamycin)...
January 18, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29343276/the-antihyperlipidemic-effects-of-fullerenol-nanoparticles-via-adjusting-the-gut-microbiota-in-vivo
#18
Juan Li, Runhong Lei, Xin Li, Fengxia Xiong, Quanyang Zhang, Yue Zhou, Shengmei Yang, Yanan Chang, Kui Chen, Weihong Gu, Chongming Wu, Gengmei Xing
BACKGROUND: Nanoparticles (NPs) administered orally will meet the gut microbiota, but their impacts on microbiota homeostasis and the consequent physiological relevance remain largely unknown. Here, we describe the modulatory effects and the consequent pharmacological outputs of two orally administered fullerenols NPs (Fol1 C60(OH)7(O)8 and Fol113 C60(OH)11(O)6) on gut microbiota. RESULTS: Administration of Fol1 and Fol113 NPs for 4 weeks largely shifted the overall structure of gut microbiota in mice...
January 17, 2018: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/29342933/in-vitro-anticoagulant-activity-and-active-components-of-safflower-injection
#19
Kai-Hong Wang, Shi-Fei Li, Yi Zhao, Hong-Xia Li, Li-Wei Zhang
Safflower injection is well-known as a traditional Chinese medicine used to improve the blood circulation. In this study, seven safflower injection samples from different companies were evaluated for their in vitro anticoagulant activity by measuring their activated partial thromboplastin time (APTT) and prothrombin time (PT) against human plasma. The screening results suggested that the safflower injections exhibited a significant prolonging influence on APTT (p < 0.05 vs. the control group), but not on prolonging PT (p > 0...
January 15, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29342865/acute-post-prandial-cognitive-effects-of-brown-seaweed-extract-in-humans
#20
Crystal F Haskell-Ramsay, Philippa A Jackson, Fiona L Dodd, Joanne S Forster, Jocelyn Bérubé, Carey Levinton, David O Kennedy
(Poly)phenols and, specifically, phlorotannins present in brown seaweeds have previously been shown to inhibit α-amylase and α-glucosidase, key enzymes involved in the breakdown and intestinal absorption of carbohydrates. Related to this are observations of modulation of post-prandial glycemic response in mice and increased insulin sensitivity in humans when supplemented with seaweed extract. However, no studies to date have explored the effect of seaweed extract on cognition. The current randomized, placebo-controlled, double-blind, parallel groups study examined the impact of a brown seaweed extract on cognitive function post-prandially in 60 healthy adults (N = 30 per group)...
January 13, 2018: Nutrients
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