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https://www.readbyqxmd.com/read/29031292/a-new-integrated-tlc-mu-atr-sers-advanced-approach-for-the-identification-of-trace-amounts-of-dyes-in-mixtures
#1
Giorgia Sciutto, Silvia Prati, Irene Bonacini, Lucio Litti, Moreno Meneghetti, Rocco Mazzeo
The present research is focused on the setting up of an advanced analytical system for the detection of synthetic dyes. The system is based on the combination of an innovative thin layer chromatography (TLC) plate coupled with enhanced infrared (MU-ATR, metal underlayer attenuated total reflection) and Surface Enhanced Raman (SERS) spectroscopy. In particular, a TLC plate made of silver iodide (AgI) applied onto a gold coated glass slide (AgI@Au) is proposed as an efficient stationary phase for the separation of dyes mixtures...
October 23, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29028619/development-of-a-high-performance-liquid-chromatography-method-for-the-determination-of-florfenicol-in-animal-feedstuffs
#2
JinJing Yang, GuiZhi Sun, MingRong Qian, LingLi Huang, XianBing Ke, Bo Yang
An effective thin layer chromatography (TLC) purification procedure coupled to high-performance liquid chromatography (HPLC) method was developed for the determination of florfenicol (FF) in pig, chicken and fish feedstuffs. The feedstuff samples were extracted with ethyl acetate, defatted with n-hexane saturated with acetonitrile, and further purified by TLC. The chromatographic separation was performed on a Waters Symmetry C18 column using an isocratic procedure with acetonitrile-water (35:65, v/v) at 0.6mL/min...
September 29, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29028592/elevation-of-plasma-neutrophil-gelatinase-associated-lipocalin-ngal-levels-in-schizophrenia-patients
#3
Li Wei, Yupeng Du, Wei Wu, Xuyan Fu, Qi Xia
BACKGROUND: Psychiatric diseases are usually accompanied by immune dysregulation and activation of the inflammatory response system. However, the characteristics of immunoinflammatory markers in psychiatric diseases are not well defined. METHODS: Seventy-three patients with psychiatric diseases were divided into four groups, including a schizophrenia group, an anxiety disorder group, a unipolar depression group, and a bipolar disorder group, according to the ICD-10 and DSM-IV codes...
October 3, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29022997/phytochemical-analysis-identification-and-quantification-of-antibacterial-active-compounds-in-betel-leaves-piper-betle-methanolic-extract
#4
A Syahidah, C R Saad, M D Hassan, Y Rukayadi, M H Norazian, M S Kamarudin
BACKGROUND AND OBJECTIVE: The problems of bacterial diseases in aquaculture are primarily controlled by antibiotics. Medicinal plants and herbs which are seemed to be candidates of replacements for conventional antibiotics have therefore gained increasing interest. Current study was performed to investigate the presence of phytochemical constituents, antibacterial activities and composition of antibacterial active compounds in methanolic extract of local herb, Piper betle . METHODOLOGY: Qualitative phytochemical analysis was firstly carried out to determine the possible active compounds in P...
2017: Pakistan Journal of Biological Sciences: PJBS
https://www.readbyqxmd.com/read/29021490/synthesis-and-application-of-a-new-amphiphilic-antioxidant
#5
Hanaa M Soliman, Shaker M Arafat, Amany M Basuny, Y El- Shattory
A new amphiphilic antioxidant (tannyl stearate) derived from reaction of tannic acid with stearic acid was synthesized in order to improve tannic acid solubility in lipid materials. This reaction gives many products having different degree of esterification (tannyl mono, di, tri, tetra, penta, hexa, hepta……stearate) which were separated using silica gel column chromatography and tentative identification was carried out using thin layer chromatography (TLC). The intrinsic viscosities (η) were used to differentiate between the different molecular weight of the produced esters(1))...
October 11, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/29019578/nutritional-assessment-methods-as-predictors-of-postoperative-mortality-in-gastric-cancer-patients-submitted-to-gastrectomy
#6
Aline Kirjner Poziomyck, Leandro Totti Cavazzola, Luisa Jussara Coelho, Edson Braga Lameu, Antonio Carlos Weston, Luis Fernando Moreira
OBJECTIVES: to determine the nutritional evaluation method that best predicts mortality in 90 days of patients submitted to gastrectomy for gastric cancer. METHODS: we conducted a prospective study with 44 patients with gastric cancer, stages II to IIIa, of whom nine were submitted to partial gastrectomy, 34 to total gastrectomy, and one to esophago-gastrectomy. All patients were nutritionally evaluated through the same protocol, up to 72h after hospital admission...
September 2017: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/29017400/minimally-invasive-method-to-activate-the-expiratory-muscles-to-restore-cough
#7
Anthony F DiMarco, Robert T Geertman, Kutaiba Tabbaa, Rebecca R Polito, Krzysztof E Kowalski
CONTEXT: Spinal cord stimulation (SCS) via disc electrodes surgically placed via laminotomy incisions has been shown to restore an effective cough in subjects with spinal cord injury (SCI). The purpose of this study was to evaluate a new method of expiratory muscle activation utilizing spinal cord wire leads, which can be implanted with minimally invasive techniques. METHODS: In a subject with SCI, parallel wire leads with two electrode contacts were inserted percutaneously through a needle, advanced to the T9, T11 spinal levels and connected to an implanted radiofrequency receiver...
October 11, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28991772/prevalence-of-depression-anxiety-and-insomnia-in-chronic-kidney-disease-patients-and-their-co-relation-with-the-demographic-variables
#8
H K Aggarwal, Deepak Jain, Geeta Dabas, R K Yadav
BACKGROUND: Chronic kidney disease (CKD) is an emerging health problem in both developed and developing countries. Depression, anxiety and sleep disturbances are highly prevalent in patients with chronic disease, but remain undertreated despite significant negative consequences on patients' health. Assessment of key components of mental health early in disease course will help to identify high risk subjects in whom modifying these predictors will help in providing active and healthy life in CKD patients...
September 1, 2017: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/28990889/-role-of-quantitative-perfusion-scintigraphy-evaluation-in-determination-of-the-efficiency-of-the-procedure-before-lung-volume-reduction-coil-treatment-for-severe-emphysema
#9
Fidan Yıldız
Introduction: Lung volume reduction coil (LVRC) is a new treatment method which exercise capacities among the patients with severe emphysema. In order to determine the emphysema distribution before LVRC treatment, we examined the contribution of combination of the high resolution computed tomography (HRCT) of the lung and the quantitative perfusion scintigraphy to the efficiency of the procedure. Materials and Methods: The study was conducted retrospectively. The densitometry analysis and scores of emphysema areas of the patients who were found suitable for LVRC treatment in HRCT were determined...
June 2017: Tüberküloz Ve Toraks
https://www.readbyqxmd.com/read/28989885/impact-of-severity-of-illness-on-the-function-of-the-hypothalamo-pituitary-gonadal-axis-in-postmenopausal-women-with-acute-severe-illness-implications-for-predicting-disease-outcome
#10
Suresh Vaikkakara, Marella Neelima Raj, Alok Sachan, Alladi Mohan, Bhuma Vengamma, P V L N Srinivas Rao, Arun Mukka, Chiruvella Sravani, Amaresh P Reddy
BACKGROUND: While elevated levels of estradiol were predictive of mortality in critically ill surgical and trauma patients, their ability to predict outcome in nonsurgical patients has not been studied. We aimed to study the determinants of gonadotropin levels in acutely ill postmenopausal women with nonsurgical disease and the impact of changes in the gonadal axis on the outcome of these patients. METHODS: Thirty-five postmenopausal women admitted to medical intensive care with acute severe illness and having a Simplified Acute Physiology Score (SAPS II score) ≥30 (in-hospital mortality rate ≥ 10%) were recruited...
September 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28989030/layer-chromatography-bioassays-directed-screening-and-identification-of-antibacterial-compounds-from-scotch-thistle
#11
Ágnes M Móricz, Dániel Krüzselyi, Ágnes Alberti, András Darcsi, Györgyi Horváth, Péter Csontos, Szabolcs Béni, Péter G Ott
The antibacterial profiling of Onopordum acanthium L. leaf extract and subsequent targeted identification of active compounds is demonstrated. Thin-layer chromatography (TLC) and off-line overpressured layer chromatography (OPLC) coupled with direct bioautography were utilized for investigation of the extract against eight bacterial strains including two plant and three human pathogens and a soil, a marine and a probiotic human gut bacteria. Antibacterial fractions obtaining infusion-transfusion OPLC were transferred to HPLC-MS/MS analysis that resulted in the characterization of three active compounds and two of them were identified as, linoleic and linolenic acid...
September 28, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28987716/a-validated-method-for-analyzing-polyunsaturated-free-fatty-acids-from-dried-blood-spots-using-lc-ms-ms
#12
Erandi Hewawasam, Ge Liu, David W Jeffery, Beverly S Muhlhausler, Robert A Gibson
Omega-3 and omega-6 polyunsaturated free fatty acids (PUFA-FFA) are precursors to potent downstream lipid mediators that are regulators of inflammation. We describe the development and validation of a novel and sensitive method for quantification of individual PUFA-FFA in a dried blood spot using liquid chromatography tandem mass spectrometry (LC-MS/MS). Lipids were extracted from dried blood spot and six individual PUFA-FFA were quantified by LC-MS/MS using stable isotope dilution analysis with deuterated internal standards...
October 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28986239/characterization-and-overexpression-of-a-glycosyl-hydrolase-family-16-beta-agarase-ym01-1-from-marine-bacterium-catenovulum-agarivorans-ym01-t
#13
Ke An, Xiaochong Shi, Fangyuan Cui, Jingguang Cheng, Na Liu, Xia Zhao, Xiao-Hua Zhang
Agar, usually extracted from seaweed, has a wide variety of industrial applications due to its gelling and stabilizing characteristics. Agarases are the enzymes which hydrolyze agar into agar oligosaccharides. The produced agar oligosaccharides have been widely used in cosmetic, food, and medical fields due to their biological functions. A beta-agarase gene, YM01-1, was cloned and expressed from a marine bacterium Catenovulum agarivorans YM01(T). The encoding agarase of YM01-1 consisted of 331 amino acids with an apparent molecular mass of 37...
October 3, 2017: Protein Expression and Purification
https://www.readbyqxmd.com/read/28982579/sero-epidemiology-and-hemato-biochemical-study-of-bovine-leptospirosis-in-flood-affected-zone-of-pakistan
#14
Muhammad Ijaz, Syed Nazar Abbas, Shahid Hussain Farooqi, Amjad Islam Aqib, Ghulam Ali Anwar, Abdul Rehman, Muhammad Muddassir Ali, Khalid Mehmood, Amjad Khan
The bovine leptospirosis is an economically important zoonotic disease of flood affected areas worldwide, but scarce information is available about its epidemiology in Pakistan. This is a first study on sero-epidemiology of bovine leptospirosis in Pakistan. The objectives of this study were to investigate the sero-prevalence and associated risk factors of bovine leptospirosis in flood affected zone of Punjab, Pakistan. A total of 385 serum samples were randomly collected from four tehsils of district Muzaffargarh, Pakistan...
October 2, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28979831/bioconversion-of-isoeugenol-to-vanillin-and-vanillic-acid-using-the-resting-cells-of-trichosporon-asahii
#15
Morahem Ashengroph, Jahanshir Amini
40 isoeugenol-tolerant yeasts were isolated from the rhizosphere soil samples which in turn were collected from aromatic plants in different regions of Iran, and further tested for their ability to grow on a minimal medium containing isoeugenol as the sole carbon and energy source. Nine isolates which were able to grow on isoeugenol were examined for their ability to convert isoeugenol into vanillin under growing cell experiments. Of the tested yeasts, the highest conversion efficiency was observed in isolate MP24...
December 2017: 3 Biotech
https://www.readbyqxmd.com/read/28967546/overweight-obesity-and-lung-function-in-children-and-adults-a-meta-analysis
#16
Erick Forno, Yueh-Ying Han, James Mullen, Juan C Celedón
BACKGROUND: There is conflicting evidence on the effect of obesity on lung function in adults and children with and without asthma. We aimed to evaluate the relation between overweight or obesity and lung function, and whether such relationship varies by age, sex, or asthma status. METHODS: We searched PubMed, Scopus, CINAHL, Cochrane, and EMBASE for all studies (in English) reporting on obesity status (by body mass index) and lung function, from 2005 to 2017. Main outcomes were forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), FEV1/FVC, forced expiratory flow between 25th and 75th percentile of the forced vital capacity (FEF25-75), total lung capacity (TLC), residual volume (RV), and functional residual capacity (FRC)...
September 26, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28959673/haematological-evaluation-of-sodium-fluoride-toxicity-in-oryctolagus-cunniculus
#17
Maryam Abbas, Muhammad Hassan Siddiqi, Khushbukhat Khan, Kanwal Zahra, Arif-Un-Nisa Naqvi
Blood is promptly affected by environmental pollutants and toxicants that can cause many metabolic disorders. The high level of fluoride acts as a potential pollutant, insecticide and rodenticide with very high toxicity, associated with the hematological damage. This study aimed to determine the toxicity of Sodium Fluoride on hematological parameters in Oryctolagus cunniculus. Twenty rabbits were acclimatized and divided in to control group and three experimental groups.Experimental group-I, II and III were treated with 10, 30 and 50 mg/kg body weight doses of Sodium Fluoride orally...
2017: Toxicology Reports
https://www.readbyqxmd.com/read/28957336/a-study-on-the-modulation-of-alpha-synuclein-fibrillation-by-scutellaria-pinnatifida-extracts-and-its-neuroprotective-properties
#18
Mahdyeh Sashourpour, Saber Zahri, Tayebeh Radjabian, Viktoria Ruf, Francisco Pan-Montojo, Dina Morshedi
Aggregation of alpha-synuclein (α-SN) is a key pathogenic event in Parkinson's disease (PD) leading to dopaminergic degeneration. The identification of natural compounds inhibiting α-SN aggregation may have a major role in treating PD. Different Scutellaria species are known as valuable medicinal plants, primarily due to their high flavonoid levels. Scutellaria pinnatifida (S. pinnatifida) is endemic to Iran; however, the knowledge of its pharmaceutical properties is limited. Here we report that S. pinnatifida extracts have an anti-fibrillation effect on α-SN aggregation and neuroprotective properties on PC12 and primary dopaminergic neurons...
2017: PloS One
https://www.readbyqxmd.com/read/28956352/mutation-of-the-cyclic-di-gmp-phosphodiesterase-gene-in-burkholderia-lata-sk875-attenuates-virulence-and-enhances-biofilm-formation
#19
Hae-In Jung, Yun-Jung Kim, Yun-Jung Lee, Hee-Soo Lee, Jung-Kee Lee, Soo-Ki Kim
Burkholderia sp. is a gram-negative bacterium that commonly exists in the environment, and can cause diseases in plants, animals, and humans. Here, a transposon mutant library of a Burkholderia lata isolate from a pig with swine respiratory disease in Korea was screened for strains showing attenuated virulence in Caenorhabditis elegans. One such mutant was obtained, and the Tn5 insertion junction was mapped to rpfR, a gene encoding a cyclic di-GMP phosphodiesterase that functions as a receptor. Mutation of rpfR caused a reduction in growth on CPG agar and swimming motility as well as a rough colony morphology on Congo red agar...
October 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28956236/potential-anti-leptospiral-compound-leptomycin-b-from-marine-streptomyces-indiaensis-msu5-taxonomy-fermentation-compound-isolation-in-vitro-and-in-vivo-efficacy
#20
Jeyaraman Thirumalairaj, Karikalacholan Sivasankari, Kalimuthusamy Natarajaseenivasan, Ramasamy Balagurunathan
Leptospirosis is a worldwide reemerging tropical zoonotic disease with symptoms of mild febrile illness to more severe multiple organ failure caused by pathogenic leptospiral strains. There was no effective antibiotic for treating leptospirosis. Here, the anti-leptospiral potential of marine actinobacterial compound from Streptomyces indiaensis MSU5 isolated from Manakudy marine sediment, Tamil Nadu, India was evaluated. The potential actinobacterial strain was identified by phenotypic, cell wall, 16S rRNA gene sequence and phylogenetic analysis...
September 27, 2017: World Journal of Microbiology & Biotechnology
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