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https://www.readbyqxmd.com/read/28433992/the-aachen-minipig-phenotype-genotype-hematological-and-biochemical-characterization-and-comparison-to-the-g%C3%A3-ttingen-minipig
#1
Kerstin Pawlowsky, Lisa Ernst, Julia Steitz, Thaddäus Stopinski, Babette Kögel, Anna Henger, Reinhart Kluge, René Tolba
BACKGROUND: The pig is one of the most frequently used large animal models for biomedical research, especially in the field of translational research and surgical models. While standard livestock breeds are used in short-term and acute studies, minipig breeds are the preferred breeds in long-term and chronic studies due to their limited growth and body weight. OBJECTIVE: In consideration of the 3R principle (refinement, reduction, replacement) and the increasing demand, the aim of this study was to generate a new, robust, non-specific-pathogen-free minipig breed, the Aachen minipig...
April 22, 2017: European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes
https://www.readbyqxmd.com/read/28433489/analysis-of-the-oligosaccharides-in-japanese-rice-wine-sake-by-hydrophilic-interaction-liquid-chromatography-time-of-flight-mass-spectrometry
#2
Masafumi Tokuoka, Chihiro Honda, Akira Totsuka, Hitoshi Shindo, Masaru Hosaka
A traditional Japanese alcoholic beverage, sake, contains several oligosaccharides, which are associated with the taste of sake; however, little is known about the specific molecular species and concentrations of oligosaccharides in sake. Here, we developed an analytical method using hydrophilic interaction liquid chromatography-time-of-flight/mass spectrometry (HILIC-TOF/MS) which successfully detects the oligosaccharides in sake. A series of oligosaccharides with successive degree of polymerization (DP) values up to 18 were identified in sake for the first time, which we have named sake oligosaccharides (SAOs)...
April 19, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28433186/characterization-and-thermal-inactivation-kinetics-of-highly-thermostable-ramie-leaf-%C3%AE-amylase
#3
Liqin He, Sung-Hoon Park, Nguyen Dang Hai Dang, Hoa Xo Duong, Thi Phung Cac Duong, Phuong Lan Tran, Jong-Tae Park, Li Ni, Kwan-Hwa Park
We characterized ramie leaf β-amylase, and determined its thermostability and kinetic parameters. The enzyme was purified 53-fold using ammonium sulfate fractionation (40-60% saturation), anion exchange chromatography on DEAE-cellulose and gel permeation chromatography on Superdex-200. The purified enzyme was identified as β-amylase with molecular mass of 42kD. The enzyme displayed Km and kcat values for soluble potato starch of 1.1mg/mL and 7.8s(-1), respectively. The enzyme had a temperature optimum of 65°C, and its activity at 70°C was 92% of that at the optimal temperature after a 15-min incubation...
June 2017: Enzyme and Microbial Technology
https://www.readbyqxmd.com/read/28431198/serum-amylase-and-lipase-and-urinary-trypsinogen-and-amylase-for-diagnosis-of-acute-pancreatitis
#4
REVIEW
Gianluca Rompianesi, Angus Hann, Oluyemi Komolafe, Stephen P Pereira, Brian R Davidson, Kurinchi Selvan Gurusamy
BACKGROUND: The treatment of people with acute abdominal pain differs if they have acute pancreatitis. It is important to know the diagnostic accuracy of serum amylase, serum lipase, urinary trypsinogen-2, and urinary amylase for the diagnosis of acute pancreatitis, so that an informed decision can be made as to whether the person with abdominal pain has acute pancreatitis. There is currently no Cochrane review of the diagnostic test accuracy of serum amylase, serum lipase, urinary trypsinogen-2, and urinary amylase for the diagnosis of acute pancreatitis...
April 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28430278/enhanced-enzymatic-reactions-by-solar-to-thermal-conversion-nanoparticles
#5
Xiaoling Wu, Gang Ou, Cheng Yang, Jun Ge, Hui Wu
In this study, we show that enzymatic reactions can be easily enhanced by visible light irradiation. It is a general method as demonstrated by several different types of enzymes, including amylase, cellulase and lipase, which are typically utilized in many industrial biocatalysis processes. Markedly different from conventional titanium dioxide (TiO2) nanoparticles which absorb UV light and generate little thermal energy, defect-rich Magnéli phase titanium oxide (Ti8O15) nanoparticles absorb solar light and provide a highly effective solar-to-thermal conversion, which greatly enhances enzymatic reactions...
April 21, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28430136/therapeutic-effect-of-low-doses-of-acenocoumarol-in-the-course-of-ischemia-reperfusion-induced-acute-pancreatitis-in-rats
#6
Zygmunt Warzecha, Paweł Sendur, Piotr Ceranowicz, Jakub Cieszkowski, Marcin Dembiński, Ryszard Sendur, Joanna Bonior, Jolanta Jaworek, Tadeusz Ambroży, Rafał Olszanecki, Beata Kuśnierz-Cabala, Kaczmarzyk Tomasz, Romana Tomaszewska, Artur Dembiński
Intravascular activation of coagulation is observed in acute pancreatitis and is related to the severity of this inflammation. The aim of our study was to evaluate the impact of acenocoumarol therapy on the course of acute pancreatitis induced in male rats by pancreatic ischemia followed by reperfusion. Acenocoumarol at a dose of 50, 100, or 150 µg/kg/dose was administered intragastrically once a day, starting the first dose 24 h after the initiation of pancreatic reperfusion. RESULTS: Histological examination showed that treatment with acenocoumarol reduces pancreatic edema, necrosis, and hemorrhages in rats with pancreatitis...
April 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28428823/combining-manipulation-of-transcription-factors-and-overexpression-of-the-target-genes-to-enhance-lignocellulolytic-enzyme-production-in-penicillium-oxalicum
#7
Liwei Gao, Zhonghai Li, Chengqiang Xia, Yinbo Qu, Meng Liu, Piao Yang, Lele Yu, Xin Song
BACKGROUND: Lignocellulolytic enzymes are the main enzymes to saccharify lignocellulose from renewable plant biomass in the bio-based economy. The production of these enzymes is transcriptionally regulated by multiple transcription factors. We previously engineered Penicillium oxalicum for improved cellulase production via manipulation of three genes in the cellulase expression regulatory network. However, the potential of combinational engineering of multiple regulators and their targets at protein abundance and activity levels has not been fully explored...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28428356/biological-variation-estimates-obtained-from-91-healthy-study-participants-for-9-enzymes-in-serum
#8
Anna Carobene, Thomas Røraas, Una Ørvim Sølvik, Marit Sverresdotter Sylte, Sverre Sandberg, Elena Guerra, Irene Marino, Niels Jonker, Gerhard Barla, William A Bartlett, Pilar Fernandez-Calle, Jorge Díaz-Garzón, Francesca Tosato, Mario Plebani, Abdurrahman Coŝkun, Mustafa Serteser, Ibrahim Unsal, Ferruccio Ceriotti
BACKGROUND: We sought to develop estimates of biological variation (BV) for 9 enzymes in blood serum as part of the European Biological Variation Study. METHODS: Ninety-one healthy study participants (38 male and 53 female, 21-69 years old) were phlebotomized in each of 10 consecutive weeks at 6 European laboratories. The same preanalytical sample-handling protocol was followed at each center before transport to San Raffaele Hospital, Milan, Italy, for analysis...
April 20, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28427348/comparative-genomics-and-evolution-of-the-amylase-binding-proteins-of-oral-streptococci
#9
Elaine M Haase, Yurong Kou, Amarpreet Sabharwal, Yu-Chieh Liao, Tianying Lan, Charlotte Lindqvist, Frank A Scannapieco
BACKGROUND: Successful commensal bacteria have evolved to maintain colonization in challenging environments. The oral viridans streptococci are pioneer colonizers of dental plaque biofilm. Some of these bacteria have adapted to life in the oral cavity by binding salivary α-amylase, which hydrolyzes dietary starch, thus providing a source of nutrition. Oral streptococcal species bind α-amylase by expressing a variety of amylase-binding proteins (ABPs). Here we determine the genotypic basis of amylase binding where proteins of diverse size and function share a common phenotype...
April 20, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28427277/biological-activity-and-lc-ms-ms-profiling-of-extracts-from-the-australian-medicinal-plant-acacia-ligulata-fabaceae
#10
Diana Jæger, Bradley S Simpson, Chi P Ndi, Anna K Jäger, Christoph Crocoll, Birger Lindberg Møller, Philip Weinstein, Susan J Semple
Acacia ligulata A.Cunn. ex Benth. (Fabaceae: Mimosoideae) is a native Australian plant used traditionally by Australian Aboriginal groups. This study was undertaken to investigate the bioactivity of A. ligulata extracts and to evaluate their chemical composition. Potential antibacterial, cytotoxic and enzyme inhibitory effects relevant to traditional medicinal and food uses of the species were examined and LC-MS/MS was performed to investigate the chemical composition. Antibacterial activity was observed for bark and leaf extracts with an MIC for the bark extract of 62...
April 21, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28425599/the-starch-binding-domain-family-cbm41-an-in-silico-analysis-of-evolutionary-relationships
#11
Štefan Janeček, Katarína Majzlová, Birte Svensson, E Ann MacGregor
Within the CAZy database, there are 81 carbohydrate-binding module (CBM) families. A CBM represents a non-catalytic domain in a modular arrangement of glycoside hydrolases (GHs). The present in silico study has been focused on starch-binding domains from the family CBM41 that are usually part of pullulanases from the α-amylase family GH13. Currently there are more than 1,600 sequences classified in the family CBM41, almost exclusively from Bacteria, and so a study was undertaken in an effort to divide the members into relevant groups (subfamilies) and also to contribute to the evolutionary picture of family CBM41...
April 20, 2017: Proteins
https://www.readbyqxmd.com/read/28423086/evaluation-of-cytogenotoxicity-antioxidant-and-hypoglycemiant-activities-of-isolate-compounds-from-mansoa-hirsuta-d-c-bignoniaceae
#12
Joquebede R Pereira, Raphael F Queiroz, Erlânia A DE Siqueira, Ana Christina Brasileiro-Vidal, Antônio E G Sant'ana, Daniel M Silva, Paulo R A DE Mello Affonso
Mansoa hirsuta (Bignoniaceae) is a native plant from caatinga in Brazilian semiarid. This plant has been locally used as antimicrobial and hypoglycemiant agents, but their action mechanisms and toxicity remain largely unknown. Therefore, we evaluated the composition and antioxidant, cytoprotective and hypoglycemiant effects of raw extract, fractions and compounds from leaves of M. hirsuta. The cytogenotoxic effects of ursolic and oleanolic acids, the main phytotherapic components of this plant, were assessed...
January 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28419821/expression-of-the-enzymatically-active-legumain-like-cysteine-proteinase-tvlegu-1-of-trichomonas-vaginalis-in-pichia-pastoris
#13
Gerardo Reséndiz-Cardiel, Rossana Arroyo, Jaime Ortega-López
The legumain-like cysteine proteinase TvLEGU-1 from Trichomonas vaginalis plays a major role in trichomonal cytoadherence. However, its structure-function characterization has been limited by the lack of a reliable recombinant expression platform to produce this protein in its native folded conformation. TvLEGU-1 has been expressed in Escherichia coli as inclusion bodies and all efforts to refold it have failed. Here, we describe the expression of the synthetic codon-optimized tvlegu-1 (tvlegu-1-opt) gene in Pichia pastoris strain X-33 (Mut+) under the inducible AOX1 promoter...
April 15, 2017: Protein Expression and Purification
https://www.readbyqxmd.com/read/28413193/effect-of-dietary-purified-xanthohumol-from-hop-humulus-lupulus-l-pomace-on-adipose-tissue-mass-fasting-blood-glucose-level-and-lipid-metabolism-in-kk-ay-mice
#14
Koki Takahashi, Kyoichi Osada
We previously showed that xanthohumol-rich hop extract (XRHE, ~18% xanthohumol) exerts anti-obesity effects in rats fed a high-fat diet through regulation of fatty acid metabolism. In this study, we examined the effects of dietary purified xanthohumol from XRHE (PX, ~91.9% xanthohumol) in KK-Ay mice in order to understand the anti-obesity effects of xanthohumol alone because XRHE contains 82% unknown compounds. Dietary consumption of PX significantly inhibited an increase in the visceral fat weight of mice compared to those fed control diet without PX...
April 13, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28412339/purification-and-functional-properties-of-a-novel-glucoamylase-activated-by-manganese-and-lead-produced-by-aspergillus-japonicus
#15
Thiago Machado Pasin, Vivian Machado Benassi, Paulo Ricardo Heinen, André Ricardo de Lima Damasio, Mariana Cereia, João Atílio Jorge, Maria de Lourdes Teixeira de Moraes
Microbial amylases are used to produce ethanol, glucose and can be applied in textiles products, detergents and other industries. This study aimed to determine the best carbon source concentration to induce the amylase production by A. japonicus, and its purification and biochemical characterization. For that, this fungus was cultivated in Khanna medium, pH 5.5, for 4 days, at 25°C, in static condition, supplemented with potato starch and maltose in different concentrations. The fungal crude enzymatic extract was purified in a unique elution in DEAE-cellulose column and the molecular mass was determined as 72kDa...
April 12, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28411466/capillary-isoelectric-focusing-with-whole-column-imaging-detection-icief-a-new-approach-to-the-characterization-and-quantification-of-salivary-%C3%AE-amylase
#16
Atefeh S Zarabadi, Tiemin Huang, John G Mielke
Saliva is an easily collected biological fluid with potentially important diagnostic value. While gel electrophoresis is generally used for salivary analysis, we employed the capillary isoelectric focusing technique to allow for a rapid, automated mode of electrophoresis. Capillary isoelectric focusing coupled with UV whole column imaging detection (iCIEF) was used to develop a robust protocol to characterize salivary α-amylase collected from various glands. Notably, three sample preparation methods were examined: ultrafiltration, gel-filtration, and starch affinity interaction with salivary amylase...
March 30, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28408928/salivary-alpha-amylase-enzyme-psychological-disorders-and-life-quality-in-patients-with-recurrent-aphthous-stomatitis
#17
Juliana Andrade Cardoso, André Avelino Dos Santos Junior, Maria Lucia Tiellet Nunes, Maria Antonia Zancanaro de Figueiredo, Karen Cherubini, Fernanda Gonçalves Salum
Objective. The aim of this study was to evaluate stress, anxiety, and salivary alpha-amylase (SAA) activity in patients with recurrent aphthous stomatitis (RAS). The impact of this disease on the life quality was also evaluated. Design. Twenty-two patients with RAS and controls, matched by sex and age, were selected. Stress and anxiety were assessed using Lipp's Inventory of Stress Symptoms and Beck Anxiety Inventory. Life quality was assessed through the World Health Organization Quality of Life-bref (WHOQOL-BREF) and the Oral Health Impact Profile-14 (OHIP-14)...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28406803/investigating-clinical-benefits-of-a-novel-sleep-focused-mind-body-program-on-gulf-war-illness-gwi-symptoms-a-randomized-controlled-trial
#18
Yoshio Nakamura, David L Lipschitz, Gary W Donaldson, Yuri Kida, Samuel Williams, Richard Landward, Don Glover, Gavin West, Ashok Tuteja
OBJECTIVE: Mind-Body Bridging (MBB) has been shown to be effective for improving disturbed sleep. In this prospective randomized-controlled trial, we evaluated the efficacy of sleep-focused MBB compared with sleep education control (SED) for improving sleep in previously deployed Gulf War Veterans. METHODS: US military service members with sleep and physical health complaints who were deployed in 1990-1991 were randomized to receive MBB (n=33) or SED (n=27) between 2012 and 2015, each comprised three weekly sessions...
April 12, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28406728/clinical-evaluation-of-a-polyherbal-nutritional-supplement-in-dyslipidemic-volunteers
#19
Subramanian Suganya, Subapriya Natarajan, Duraipandian Chamundeeswari, Anand Anbarasu, Kunissery A Balasubramanian, Lynn C Schneider, Balaji Nandagopal
Ten important plant parts routinely used in South Indian ethnic food preparation as spices and condiments were investigated for their potential antidyslipidemic properties. The aim of the study was to characterize the biochemical properties of the polyherbal formulation (nutritional supplement) and evaluate its use to control dyslipidemia in patients. Phytochemical evaluation, in vitro α-amylase inhibitory assay, and high performance thin layer chromatography (HPTLC) fingerprinting were carried out with alcoholic extracts of all 10 individual plants and with the nutritional supplement...
April 13, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28406540/salivary-chromogranin-a-levels-correlate-with-disease-severity-but-do-not-reflect-anxiety-or-personality-of-adult-patients-with-atopic-dermatitis
#20
Sakae Kaneko, Lijuan Liu, Takeyasu Kakamu, Masako Minami-Hori, Eishin Morita
Stress-induced scratching is an issue in patients with adult atopic dermatitis (AD). Although itching and stress are believed to be intimately related, no objective index is available; therefore, most evaluations are subjective. Using saliva, which is easily collected, we investigated the degree to which AD severity and patient stress levels are reflected in stress proteins in the saliva. Here, we evaluated the severity (Scoring Atopic Dermatitis [SCORAD] score), stress (State-Trait Anxiety Index [STAI] score), personality (Tokyo University Egogram [TEG] II score) and quality of life (Dermatology Life Quality Index [DLQI] score) of 51 patients with AD who were examined in the Department of Dermatology of Shimane University between April and December 2015...
April 13, 2017: Journal of Dermatology
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