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https://www.readbyqxmd.com/read/29027697/development-and-validation-of-a-reverse-transcription-quantitative-polymerase-chain-reaction-for-tilapia-lake-virus-detection-in-clinical-samples-and-experimentally-challenged-fish
#1
P Tattiyapong, K Sirikanchana, W Surachetpong
Tilapia lake virus (TiLV) is an emerging pathogen associated with high mortalities of wild and farm-raised tilapia in different countries. In this study, a SYBR green-based reverse transcription quantitative polymerase chain reaction (RT-qPCR) assay targeting segment three of the virus was developed to detect and quantify TiLV in clinical samples and experimentally challenged fish. All 30 field samples with clinical signs and history consistent with TiLV infection were positive for TiLV as detected by the developed RT-qPCR method...
October 13, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/29024698/pediatric-clif-sofa-score-is-the-best-predictor-of-28-day-mortality-in-children-with-decompensated-chronic-liver-disease
#2
Rishi Bolia, Anshu Srivastava, Surender Kumar Yachha, Ujjal Poddar
BACKGROUND AND AIMS: Early identification of children with decompensated chronic liver disease (DCLD) at risk of short-term mortality helps improve outcome. We evaluated the predictors of outcome and role of Child Pugh [CP], Pediatric End- stage Liver Disease [PELD] and pediatric chronic liver failure sequential organ failure assessment [pCLIF-SOFA] score in prognosticating 28 days mortality in DCLD children. METHODS: DCLD children were prospectively evaluated with a clinico-laboratory proforma and followed till 28 days to determine outcome...
October 9, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/29022266/cardiac-aging-benefits-of-exercise-nrf2-activation-and-antioxidant-signaling
#3
Madhusudhanan Narasimhan, Namakkal-Soorappan Rajasekaran
Cardiovascular dysfunction and heart failure associated with aging not only impairs the cardiac function but also the quality of life eventually decreasing the life expectancy of the elderly. Notably, cardiac tissue can prematurely age under certain conditions such as genetic mutation, persistent redox stress and overload, aberrant molecular signaling, DNA damage, telomere attrition, and other pathological insults. While cardiovascular-related morbidity and mortality is on the rise and remains a global health threat, there has been only little to moderate improvements in its medical management...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28993959/comprehensive-analysis-of-phospholipids-in-the-brain-heart-kidney-and-liver-brain-phospholipids-are-least-enriched-with-polyunsaturated-fatty-acids
#4
Jaewoo Choi, Tai Yin, Koichiro Shinozaki, Joshua W Lampe, Jan F Stevens, Lance B Becker, Junhwan Kim
It is commonly accepted that brain phospholipids are highly enriched with long-chain polyunsaturated fatty acids (PUFAs). However, the evidence for this remains unclear. We used HPLC-MS to analyze the content and composition of phospholipids in rat brain and compared it to the heart, kidney, and liver. Phospholipids typically contain one PUFA, such as 18:2, 20:4, or 22:6, and one saturated fatty acid, such as 16:0 or 18:0. However, we found that brain phospholipids containing monounsaturated fatty acids in the place of PUFAs are highly elevated compared to phospholipids in the heart, kidney, and liver...
October 9, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28992444/molecular-cloning-characterization-and-expression-analysis-of-cathepsin-a-in-the-chinese-giant-salamander-andrias-davidianus
#5
Qihuan Zhang, Panpan Han, Bei Huang, Zisheng Wang, Guo Qiao, Puze Wang, Zhitao Qi
Cathepsin A (CTSA) is serine carboxypeptidase, an important protease in the lysosome. In this study, the full complementary DNA (cDNA) sequence of CTSA in Chinese giant salamanders Andrias davidianus was cloned, and its sequence features were analyzed. Tissue expression patterns of CTSA in healthy and Aeromonas hydrophila-infected salamanders were also investigated. The full cDNA sequence of salamander CTSA was 1,620 base pairs in length, encoding 472 amino acids. Salamander CTSA shared high sequence identities with other vertebrates' CTSAs, ranging from 62...
December 2017: Journal of Aquatic Animal Health
https://www.readbyqxmd.com/read/28992352/in-vivo-pathogenicity-of-trichosporon-asahii-isolates-with-different-in-vitro-enzymatic-profiles-in-an-immunocompetent-murine-model-of-systemic-trichosporonosis
#6
Alexandra M Montoya, Carolina E Luna-Rodríguez, Rogelio de J Treviño-Rangel, Miguel Becerril-García, Raquel G Ballesteros-Elizondo, Odila Saucedo-Cárdenas, Gloria M González
Trichosporon asahii is an opportunistic yeastlike fungus that colonizes the gastrointestinal and respiratory tracts and human skin. Although it is an important cause of disseminated infections by non-Candida species, there are a few reports related to its virulence factors and their possible role in in vivo pathogenicity. We developed a murine model of disseminated trichosporonosis in immunocompetent mice for the evaluation of the in vivo pathogenicity of 6 T. asahii isolates with different in vitro virulence factor profiles...
September 9, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28991003/site-specific-solid-cancer-mortality-following-exposure-to-ionizing-radiation-a-cohort-study-of-workers-inworks
#7
David B Richardson, Elisabeth Cardis, Robert D Daniels, Michael Gillies, Richard Haylock, Klervi Leuraud, Dominique Laurier, Monika Moissonnier, Mary K Schubauer-Berigan, Isabelle Thierry-Chef, Ausrele Kesminiene
BACKGROUND: There is considerable scientific interest in associations between protracted low-dose exposure to ionizing radiation and the occurrence of specific types of cancer. METHODS: Associations between ionizing radiation and site-specific solid cancer mortality were examined among 308,297 nuclear workers employed in France, the United Kingdom, and the United States. Workers were monitored for external radiation exposure and follow-up encompassed 8.2 million person-years...
October 4, 2017: Epidemiology
https://www.readbyqxmd.com/read/28990973/the-issue-of-gadolinium-retained-in-tissues-insights-on-the-role-of-metal-complex-stability-by-comparing-metal-uptake-in-murine-tissues-upon-the-concomitant-administration-of-lanthanum-and-gadolinium-diethylentriamminopentaacetate
#8
Enza Di Gregorio, Giuseppe Ferrauto, Chiara Furlan, Stefania Lanzardo, Raffaele Nuzzi, Eliana Gianolio, Silvio Aime
OBJECTIVES: The aim of the study was to explore the role of the stability of metal complexes in the processes that lead to the metal retention in the brain and other tissues of mice administered with lanthanides-based contrast agents. This issue was tackled by the simultaneous injection of gadolinium (Gd)-diethylentriamminopentaacetate (DTPA) and lanthanum-DTPA, which have the same charge and structure but differ in their thermodynamic stability by 3 orders of magnitude. MATERIALS AND METHODS: A total of 20 healthy BALB/c mice were administered by a single intravenous injection with a dose consisting of 0...
October 3, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28987296/yellow-phosphorus-induced-brugada-phenocopy
#9
Mayakrishnan Dharanipradab, Stalin Viswanathan, Gokula Raman Kumar, Vijayalatchumy Krishnamurthy, Daphene Divya Stanley
BACKGROUND: Metallic phosphides (of aluminum and phosphide) and yellow phosphorus are commonly used rodenticide compounds in developing countries. Toxicity of yellow phosphorus mostly pertains to the liver, kidney, heart, pancreas and the brain. Cardiotoxicity with associated Brugada ECG pattern has been reported only in poisoning with metallic phosphides. METHODS AND RESULTS: Brugada phenocopy and hepatic dysfunction were observed in a 29-year-old male following yellow phosphorus consumption...
September 1, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28986933/liquid-tissue-surrogates-for-x-ray-and-ct-phantom-studies
#10
Paul F FitzGerald, Robert E Colborn, Peter M Edic, Jack W Lambert, Peter J Bonitatibus, Benjamin M Yeh
PURPOSE: To develop a simple method for producing liquid-tissue-surrogate (LTS) materials that accurately represent human soft tissues in terms of density and X-ray attenuation coefficient. METHODS AND MATERIALS: We evaluated hypothetical mixtures of water, glycerol, butanol, methanol, sodium chloride, and potassium nitrate; these mixtures were intended to emulate human adipose, blood, brain, kidney, liver, muscle, pancreas, and skin. We compared the hypothetical densities, effective atomic numbers (Zeff ), and calculated discrete-energy CT attenuation (Hounsfield Units (HU)) of the proposed materials with those of human tissue elemental composition as specified in International Commission on Radiation Units (ICRU) Report 46...
October 7, 2017: Medical Physics
https://www.readbyqxmd.com/read/28985863/early-declaration-of-death-by-neurologic-criteria-results-in-greater-organ-donor-potential
#11
Shelby Resnick, Mark J Seamon, Daniel Holena, Jose Pascual, Patrick M Reilly, Niels D Martin
BACKGROUND: Aggressive management of patients prior to and after determination of death by neurologic criteria (DNC) is necessary to optimize organ recovery, transplantation, and increase the number of organs transplanted per donor (OTPD). The effects of time management are understudied but potentially pivotal component. The objective of this study was to analyze specific time points (time to DNC, time to procurement) and the time intervals between them to better characterize the optimal timeline of organ donation...
October 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28980932/estimating-the-modulatory-effect-of-cadmium-chloride-on-the-genotoxicity-and-mutagenicity-of-silver-nanoparticles-in-mice
#12
H R H Mohamed
Silver (Ag) nanoparticles (nano-Ag) are widely used because of their distinctive antimicrobial properties, but this widespread use increases Ag release into the environment along with many other pollutants such as heavy metals. Therefore, this study was undertaken to study the modulatory effect of cadmium chloride (CdCl2) on the genotoxicity and mutagenicity of nano-Ag in mice liver, kidney and brain tissues. Co-injections of CdCl2 (1.5 mg/kg) with nano-Ag (20, 41, or 82 mg/kg) resulted in significant elevations in both single and double DNA strand breaks that triggered higher apoptotic DNA damage, as revealed by the more fragmented appearance of genomic DNA and the significant increase in apoptotic fractions...
September 30, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28978943/global-misregulation-of-genes-largely-uncoupled-to-dna-methylome-epimutations-characterizes-a-congenital-overgrowth-syndrome
#13
Zhiyuan Chen, Darren E Hagen, Tieming Ji, Christine G Elsik, Rocío M Rivera
Assisted reproductive therapies (ART) have become increasingly common worldwide and numerous retrospective studies have indicated that ART-conceived children are more likely to develop the overgrowth syndrome Beckwith-Wiedemann (BWS). In bovine, the use of ART can induce a similar overgrowth condition, which is referred to as large offspring syndrome (LOS). Both BWS and LOS involve misregulation of imprinted genes. However, it remains unknown whether molecular alterations at non-imprinted loci contribute to these syndromes...
October 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28977466/determination-of-salbutamol-residues-in-goat-various-tissues-after-exposure-to-growth-promoting-doses
#14
Yujuan Yang, Xu Gu, Yingchao Dong, Junguo Li, Haiqiu Ni, Moyong Xue, Zhen Zhao, Zhiwei Sun, Yuchang Qin
In order to monitor salbutamol (SAL) use in goats as a repartitioning, we determined SAL residues in various tissues of goats after repeated oral SAL administration at a dose of 0.15 mg/kg daily for 21 days. SAL concentrations were measured by ultra performance liquid chromatography tandem mass spectrometry in extracts of tissues from goats sacrificed 0.25, 1, 3, 7, 14, 21 and 28 days after the last dose. Our results showed that on Day 0.25 of the withdrawal period, the residual proportions of SAL (expressed as percentage) in liver, kidney, lung, hair, stomachs and muscle were 19...
September 4, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28977204/tadalafil-protective-action-against-the-development-of-multiple-organ-failure-syndrome
#15
Granville G de Oliveira, Samer A H de Oliveira, Paulo Henrique H Botelho, Marcos Aurelio Barboza de Oliveira, Ka Bian, Ferid Murad
INTRODUCTION: Multiple organ failure syndrome (MOFS) is a pathology associated to unspecified and severe trauma, characterized by elevated morbidity and mortality. The complex inflammatory MOFS-related reactions generate important ischemia-reperfusion responses in the induction of this syndrome. Nitric oxide elevation, through the activation of cyclic guanosine monophosphate (cGMP), has the potential of counteracting the typical systemic vasoconstriction, and platelet-induced hypercoagulation...
July 2017: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28976334/super-scan-caused-by-parathyroid-carcinoma-observed-both-in-18-f-fdg-pet-ct-scan-and-tc-99m-mdp-bone-scintigraphy
#16
İsa Burak Güney, Semra Paydaş, Hüseyin Tuğsan Ballı
Super scan is a well-known finding described in skeletal scintigraphy characterized by uniform symmetrically increased radiopharmaceutical uptake by bones and consequently diminished renal parenchymal activity. Sy et al. hypothesized that the faint visualization of renal cortex in bone scintigraphy might be the result of increased uptake of radiopharmaceutical by pathologic bones and reduced phosphate excretion. The super scan on (18)F-fluorodeoxyglucose positron emission tomography/computed tomography ((18)F-FDG PET/CT) has been observed in various conditions such as prostate cancer, lung cancer, renal adenocarcinoma, gastric cancer and primitive neuroectodermal tumor of the kidney...
October 3, 2017: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/28969780/experimental-transmission-of-toxocara-canis-from-blattella-germanica-and-periplaneta-americana-cockroaches-to-a-paratenic-host
#17
T González-García, M A Muñoz-Guzmán, H Sánchez-Arroyo, M G Prado-Ochoa, J A Cuéllar-Ordaz, F Alba-Hurtado
The present study assessed the capacity of Blattella germanica and Periplaneta americana to disseminate and transmit infective phases of T. canis to rats, which were used as a model paratenic host. P. americana and B. germanica inoculated orally with T. canis larvated eggs shed eggs and larvae in their fecal matter during the first 6days post-inoculation. Larvae were recovered from the brain, lungs, kidneys and liver of rats that had been inoculated with either infected cockroaches or their feces. ELISAs of serum detected an increase of antibodies anti-T...
November 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28968985/stress-inhibits-tryptophan-hydroxylase-expression-in-a-rat-model-of-depression
#18
Yi Chen, Haixia Xu, Mingyue Zhu, Kun Liu, Bo Lin, Ruxian Luo, Chuanbai Chen, Mengsen Li
Serotonin (5-hydroxytryptamine, 5-HT) dysfunction is associated with the pathophysiology of depression. Tryptophan hydroxylase (TPH), the rate-limiting enzyme in 5-HT biosynthesis, is believed to have essential role in many mental disorders, including depression. In the present study, we generated a rat model of depression by exposing the animals to stress, and the rats were then treated with paroxetine. The results indicated that the concentration of 5-HT in the brain and liver tissues were significantly lower in the rat model of depression than in healthy or treated rats...
September 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28965584/identification-of-eight-copper-cu-uptake-related-genes-from-yellow-catfish-pelteobagrus-fulvidraco-and-their-tissue-expression-and-transcriptional-responses-to-dietborne-cu-exposure
#19
Jie Cheng, Zhi Luo, Guang-Hui Chen, Chuan-Chuan Wei, Mei-Qin Zhuo
The present working hypothesis is that absorption of dietary Cu is related to mRNA expressions of genes involved in Cu uptake and transport of the intestine in fish. To this end, the full-length cDNA sequences of eight Cu uptake related genes, including two isoforms of copper transporter genes (ctr1 and ctr2), three copper chaperone genes (atox1, ccs and cox17), two Cu-ATPase genes (atp7a and atp7b) and divalent metal ion transporter 1 (dmt1), were cloned and characterized in yellow catfish P. fulvidraco, respectively...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28964831/discovery-of-novel-non-competitive-inhibitors-of-mammalian-neutral-m1-aminopeptidase-apn
#20
Isel Pascual, Pedro A Valiente, Gabriela García, Mario E Valdés-Tresanco, Yarini Arrebola, Lisset Díaz, Lotfi Bounaadja, Rosa María Uribe, Mae Chappé Pacheco, Isabelle Florent, Jean-Louis Charli
Neutral metallo-aminopeptidase (APN) catalyzes the cleavage of neutral and basic amino acids from the N-terminus of protein or peptide substrates. APN expression is dysregulated in inflammatory diseases as well as in several types of cancer. Therefore, inhibitors of APN may be effective against cancer and inflammation. By virtual screening and enzymatic assays, we identified three non-competitive inhibitors (α > 1) of the porcine and human APN with Ki values in the μM range. These non-peptidic compounds lack the classical zinc-binding groups (ZBG) present in most of the APN inhibitors...
September 27, 2017: Biochimie
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