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https://www.readbyqxmd.com/read/29046501/characterization-of-amylolytic-enzyme-overproducing-mutant-of-aspergillus-luchuensis-obtained-by-ion-beam-mutagenesis
#1
Toshihiro Kojo, Chihiro Kadooka, Marisa Komohara, Shiori Onitsuka, Miya Tanimura, Yukiko Muroi, Shugo Kurazono, Yohei Shiraishi, Ken Oda, Kazuhiro Iwashita, Masahira Onoue, Kayu Okutsu, Yumiko Yoshizaki, Kazunori Takamine, Taiki Futagami, Kazuki Mori, Hisanori Tamaki
Aspergillus luchuensis is a kuro (black) koji fungus that has been used as a starch degrader for the awamori- and shochu-making industries in Japan. In this study, we investigated the effect of ion beam irradiation on A. luchuensis RIB2601 and obtained a high starch-degrading mutant strain U1. Strain U1 showed reduced growth rate, whereas it showed higher α-amylase, glucoamylase, and α-glucosidase activities on a mycelial mass basis than the wild type (wt) strain both on agar plates and in rice koji. In addition, strain U1 showed higher N-acetylglucosamine content in the cell wall and higher sensitivity to calcofluor white, suggesting a deficiency in cell wall composition...
October 17, 2017: Journal of General and Applied Microbiology
https://www.readbyqxmd.com/read/29045415/isolation-identification-and-phenotypic-and-molecular-characterization-of-pathogenic-vibrio-vulnificus-isolated-from-litopenaeus-vannamei
#2
Tao Teng, Liguo Liang, Kai Chen, Bingwen Xi, Jun Xie, Pao Xu
The morphology and the drug sensitivity of the strain GYX2014-1 isolated from the hepatic pancreatic tissue of moribund Litopenaeus vannamei were evaluated by conventional culture characteristics, physical and chemical characteristics, and molecular biology methods. Detection of extracellulase and hemolysin activity shows that the isolated GYX2014-1 has protease, lipase, gelatinase activity, but none of amylase, or lecithinase activity. The 16S rRNA gene (GenBank accession number: KT781675) was analyzed, and a phylogenetic tree analysis showed that the isolated pathogen was most closely related to V...
2017: PloS One
https://www.readbyqxmd.com/read/29043349/comparative-suppressing-effects-of-black-and-green-teas-on-the-formation-of-advanced-glycation-end-products-ages-and-age-induced-oxidative-stress
#3
P Ramlagan, P Rondeau, C Planesse, V S Neergheen-Bhujun, E Bourdon, T Bahorun
This study aimed at investigating and comparing the anti-diabetic potential of black and green teas. Biochemical analyses indicate higher antioxidant potency, significantly correlated with the phytochemicals present, in green teas compared to black teas. Both extracts afforded a similar level of protection to erythrocytes against peroxyl radical-induced lysis. Non-cytotoxic concentration of green and black tea extracts significantly reduced the reactive oxygen species (ROS) production (P < 0.01), lowered the oxidation of proteins (P < 0...
October 18, 2017: Food & Function
https://www.readbyqxmd.com/read/29043213/sargassum-yezoense-extract-inhibits-carbohydrate-digestive-enzymes-in-vitro-and-alleviates-postprandial-hyperglycemia-in-diabetic-mice
#4
Jae-Eun Park, Ji-Hee Lee, Ji-Sook Han
In this study, we investigated whether Sargassum yezoense extract (SYE) could inhibit α-glucosidase and α-amylase activities, and alleviate postprandial hyperglycemia in streptozotocin (STZ)-induced diabetic mice. Freeze-dried S. yezoense was extracted with 80% ethanol and concentrated for use in this study. The hypoglycemic effect was determined by evaluating the inhibitory activities of SYE against α-glucosidase and α-amylase as well as its ability to decrease postprandial blood glucose levels. The half-maximal inhibitory concentrations of SYE against α-glucosidase and α-amylase were 0...
September 2017: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/29039281/inhibitory-effects-of-an-extract-from-non-host-plants-on-physiological-characteristics-of-two-major-cabbage-pests
#5
M Dastranj, E Borzoui, A R Bandani, O L Franco
The diamondback moth (Plutella xylostella) and small white cabbage butterfly (Pieris rapae) are the two main serious pests of cruciferous crops (Brassicaceae) that have developed resistance to chemical control methods. In order to avoid such resistance and also the adverse effects of chemical pesticides on the environment, alternative methods have usually been suggested, including the use of plant enzyme inhibitors. Here, the inhibitory effects of proteinaceous inhibitors extracted from wheat, canola, sesame, bean and triticale were evaluated against the digestive α-amylases, larval growth, development and nutritional indecs of the diamondback moth and small white cabbage butterfly...
October 17, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29037836/the-genomic-and-transcriptomic-basis-of-the-potential-of-lactobacillus-plantarum-a6-to-improve-the-nutritional-quality-of-a-cereal-based-fermented-food
#6
Williams Turpin, Marion Weiman, Jean-Pierre Guyot, Aurélie Lajus, Stéphane Cruveiller, Christèle Humblot
The objective of this work was to investigate the nutritional potential of Lactobacillus plantarum A6 in a food matrix using next generation sequencing. To this end, we characterized the genome of the A6 strain for a complete overview of its potential. We then compared its transcriptome when grown in a food matrix made from pearl millet to and its transcriptome when cultivated in a laboratory medium. Genomic comparison of the strain L. plantarum A6 with the strains WCFS1, ST-III, JDM1 and ATCC14917 led to the identification of five regions of genomic plasticity...
October 6, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29037720/mass-spectrometry-based-phytochemical-screening-for-hypoglycemic-activity-of-fagioli-di-sarconi-beans-phaseolus-vulgaris-l
#7
Raffaella Pascale, Giuliana Bianco, Tommaso R I Cataldi, Philippe-Schmitt Kopplin, Federica Bosco, Lisiana Vignola, Jenny Uhl, Marianna Lucio, Luigi Milella
The present study deals with the evaluation of antidiabetic activities of Fagioli di Sarconi beans (Phaseolus vulgaris), including 21 ecotypes protected by the European Union with the mark PGI (i.e., Protected Geographical Indication), and cultivated in Basilicata (southern Italy). For this purpose, α-glucosidase and α-amylase assays were assessed; among all bean ecotypes, the tight green seed colour of Verdolino extracts exhibited the highest α-glucosidase and α-amylase inhibitory activity with IC50=1...
March 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29037686/identification-and-biological-activities-of-carotenoids-from-the-freshwater-alga-oedogonium-intermedium
#8
Na Wang, Yuki Manabe, Tatsuya Sugawara, Nicholas A Paul, Jian Zhao
The chemical and biological properties of carotenoids in the freshwater alga Oedogonium intermedium were investigated in this study. Carotenoids were extracted from the alga by dichloromethane and purified by saponification. The carotenoid content was determined both spectrometrically and by HPLC, the carotenoids identified by HPLC-PDA-APCI-IT-TOF-MS and the extracts analysed for several health-related bioactivities. The crude and saponified extracts contained 3,411.2±20.7 and 2,929.6±5.9µg carotenoids/g dry algal biomass, respectively...
March 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29037115/low-subjective-social-status-in-the-police-is-linked-to-health-relevant-changes-in-diurnal-salivary-alpha-amylase-activity-in-swiss-police-officers
#9
Stéphanie Habersaat, Sid Abdellaoui, Ashley M Geiger, Sébastien Urben, Jutta M Wolf
The objective of this study was to assess basal autonomic nervous system (ANS) activity as a pathway linking subjective social status to health in a high-demand work environment. It was hypothesized that officers with a lower status experienced more chronic stress (higher basal ANS activity) and that chronic stress was related to more health problems. Fifty-six male and female Swiss police officers self-reported on subjective social status (country, community, friends, police) and their health (depression, post-traumatic stress, physical symptoms) and collected 12 saliva samples over two days for basal α-amylase activation (sAA) assessment...
October 16, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/29035440/impact-of-ph-on-urine-chemistry-assayed-on-roche-analyzers
#10
R Cohen, R Alkouri, I Tostivint, S Djiavoudine, F Mestari, S Dever, G Atlan, C Devilliers, F Imbert-Bismut, D Bonnefont-Rousselot, D Monneret
BACKGROUND: The pH may impact the concentration of certain urinary parameters, making urine pre-treatment questionable. METHODS: 1) Determining the impact of pH in vitro on the urinary concentration of chemistry parameters assayed on Roche Modular analyzers. 2) Evaluating whether concentrations depended on pH in non-pretreated urines from patients. RESULTS: 1) The optimal urinary pH values for each measurement were: 6.3 ± 0.8 (amylase), < 5...
October 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/29034198/phenolic-constituents-and-modulatory-effects-of-raffia-palm-leaf-raphia-hookeri-extract-on-carbohydrate-hydrolyzing-enzymes-linked-to-type-2-diabetes
#11
Felix A Dada, Sunday I Oyeleye, Opeyemi B Ogunsuyi, Tosin A Olasehinde, Stephen A Adefegha, Ganiyu Oboh, Aline A Boligon
This study sought to investigate the effects of Raffia palm (Raphia hookeri) leaf extract on enzymes linked to type-2 diabetes mellitus (T2DM) and pro-oxidant induced oxidative stress in rat pancreas. The extract was prepared and its α-amylase and α-glucosidase inhibitory effects were determined. Radical [2,2-diphenyl-1-picrylhydrazyl (DPPH)] scavenging and Fe(2+)-chelating abilities, and inhibition of Fe(2+)-induced lipid peroxidation in rat pancreas homogenate were assessed. Furthermore, total phenol and flavonoid contents, reducing property, and high performance liquid chromatography diode array detector (HPLC-DAD) fingerprint of the extract were also determined...
October 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29033186/a-preliminary-study-on-fetal-lung-injury-in-a-rat-model-of-acute-pancreatitis-in-pregnancy
#12
Liang Zhao, Teng Zuo, Qiao Shi, Fang-Chao Mei, Yu-Pu Hong, Wen-Hong Deng, Jia Yu, Peng Hu, Wei-Xing Wang
Acute pancreatitis in pregnancy (APIP), which was thought to be rare, is becoming more frequent. In addition, high perinatal mortality among fetuses has been reported. Our research aimed to investigate and assess fetal lung injury in a rat model of APIP and its possible mechanisms. The APIP model was induced by sodium taurocholate in Sprague-Dawley rats during the third trimester. Sham-operated (SO) rats in late gestation were used as controls, and dynamic observation and detection in the SO and acute pancreatitis (AP) groups were performed at 3 time-points...
September 18, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29032032/enzyme-inhibitory-activities-an-insight-into-the-structure-activity-relationship-of-biscoumarin-derivatives
#13
Muhammad Faisal, Aamer Saeed, Danish Shahzad, Tanzeela Abdul Fattah, Bhajan Lal, Pervaiz Ali Channar, Jamaluddin Mahar, Shomaila Saeed, Parvez Ali Mahesar, Fayaz Ali Larik
Biscoumarin derivatives, a dimeric form of coumarin, are well known derivatives of coumarin, occurred in the bioactive metabolites of marine and terrestrial organisms. On account of pharmacological and biological applications, biscoumarins have long been the subject of innumerable enzyme inhibition studies. In this review the pros and cons of enzyme inhibition studies of biscoumarins as urease inhibitors, aromatase inhibitors, NPPs, α-glucosidase inhibitors, α-amylase inhibitors, HIV-1 integrase inhibition, steroid sulfatase inhibitors and c-Met inhibitors are discussed in a systematic way...
October 6, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29031233/forensic-and-clinical-significance-of-serum-amylase-lipase-and-gamma-glutamyl-transferase-as-predictors-of-outcome-in-head-injured-patients
#14
Mona Mohamed Abo El-Noor, Naema Mahmoud ElHosary, Hytham Ibrahim Elatrozy, Hussein Mohamed Abou Elgheit, Ahmed Mohamed Elbelkasy, Ahmed Gamal Fath, Ghada Hamed El-Shafy
Head trauma is one of the leading causes of death and disability worldwide. Combined head lesions consist of more than one form of lesions. Biochemical markers of brain injury are used in determining the extent of brain injury and predicting its outcomes. The aim of this study was to investigate the forensic and clinical significance of serum amylase, lipase and gamma glutamyl transferase (GGT) as predictors of the outcome in head injured patients. PATIENTS AND METHODS: Sixty head injured patients were enrolled and subjected to personal history taking, general and local physical examination...
October 4, 2017: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29030997/rna-interference-and-functional-characterization-of-a-tergal-gland-alpha-amylase-in-the-german-cockroach-blattella-germanica-l
#15
A J Myers, A D Gondhalekar, M Fardisi, K D Pluchar, K D Saltzmann, G W Bennett, M E Scharf
German cockroach males possess tergal glands that secrete a combination of oligosaccharides, lipids and proteins. Four major proteins occur in the secretion, with one being the 63 kDa alpha-amylase Blattella germanica Tergal Gland protein-1 (BGTG-1). Denaturing and starch gel electrophoresis coupled with peptide sequencing verified amylase activity for the BGTG-1 protein. BGTG-1 gene expression profiles were determined by using quantitative real-time PCR to compare messenger RNA abundance among isolated tissues of males, females and gravid females...
October 14, 2017: Insect Molecular Biology
https://www.readbyqxmd.com/read/29030887/the-impact-of-direct-fed-microbials-and-enzymes-on-the-health-and-performance-of-dairy-cows-with-emphasis-on-colostrum-quality-and-serum-immunoglobulin-concentrations-in-calves
#16
S B Ort, K M Aragona, C E Chapman, E Shangraw, A F Brito, D J Schauff, P S Erickson
Thirty-six cows were blocked by calving date and randomly assigned to one of three treatments. Cows were on treatments 3 weeks prepartum through 8 weeks post-partum. Treatments were as follows: (i) no direct-fed microbial (DFM) or cellulase and amylase enzymes (C), (ii) 45.4 g/day of DFM (D) or (iii) 45.4 g/day of DFM and 18.2 g/day of enzyme (DE). Total mixed ration fed and refused were measured daily to determine dry matter intake (DMI). Blood samples were taken three times weekly and analysed for β-hydroxybutyrate, glucose and non-esterified fatty acids...
October 13, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29030601/interfering-with-the-high-affinity-interaction-between-wheat-amylase-trypsin-inhibitor-cm3-and-toll-like-receptor-4-in-silico-and-biosensor-based-studies
#17
Massimiliano Cuccioloni, Matteo Mozzicafreddo, Laura Bonfili, Valentina Cecarini, Mara Giangrossi, Maurizio Falconi, Shin-Ichiroh Saitoh, Anna Maria Eleuteri, Mauro Angeletti
Wheat amylase/trypsin bi-functional inhibitors (ATIs) are protein stimulators of innate immune response, with a recently established role in promoting both gastrointestinal and extra-gastrointestinal inflammatory syndromes. These proteins have been reported to trigger downstream intestinal inflammation upon activation of TLR4, a member of the Toll-like family of proteins that activates signalling pathways and induces the expression of immune and pro-inflammatory genes. In this study, we demonstrated the ability of ATI to directly interact with TLR4 with nanomolar affinity, and we kinetically and structurally characterized the interaction between these macromolecules by means of a concerted approach based on surface plasmon resonance binding analyses and computational studies...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29030007/pretreatment-of-a-matrix-metalloproteases-inhibitor-and-aprotinin-attenuated-the-development-of-acute-pancreatitis-induced-lung-injury-in-rat-model
#18
Kuang-En Chu, Yao Fong, David Wang, Chao Fuh Chen, Diana Yu-Wung Yeh
OBJECTIVE: Acute lung injury (ALI) is one of the most common extra-pancreatic complications of acute pancreatitis. In this study, we examined the protective effect of protease inhibitor aprotinin and a matrix metalloproteinase inhibitor (MMPi) on pulmonary inflammation in rats with severe pancreatitis-associated ALI. METHOD: A rat model of acute pancreatitis (AP) was established by injecting sodium glycodeoxycholate (GDOC) into the pancreatic duct. Pharmacological interventions included pretreatment with a protease inhibitor aprotinin (10mg/kg) and a matrix metalloproteinase inhibitor (MMPi, 100g/kg)...
October 6, 2017: Immunobiology
https://www.readbyqxmd.com/read/29029985/clinical-and-pathological-outcomes-after-irreversible-electroporation-of-the-pancreas-using-two-parallel-plate-electrodes-a-porcine-model
#19
Steffi J E Rombouts, Willemijn P M van Dijck, Maarten W Nijkamp, Tyche C Derksen, Lodewijk A A Brosens, Frederik J H Hoogwater, Maarten S van Leeuwen, Inne H M Borel Rinkes, Richard van Hillegersberg, Fred H Wittkampf, Izaak Q Molenaar
BACKGROUND: Irreversible electroporation (IRE) by inserting needles around the tumor as treatment for locally advanced pancreatic cancer entails several disadvantages, such as incomplete ablation due to field inhomogeneity, technical difficulties in needle placement and a risk of pancreatic fistula development. This experimental study evaluates outcomes of IRE using paddles in a porcine model. METHODS: Six healthy pigs underwent laparotomy and were treated with 2 separate ablations (in head and tail of the pancreas)...
October 10, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/29029703/comparative-genomics-of-maize-ear-rot-pathogens-reveals-expansion-of-carbohydrate-active-enzymes-and-secondary-metabolism-backbone-genes-in-stenocarpella-maydis
#20
Alex Z Zaccaron, Charles P Woloshuk, Burton H Bluhm
Stenocarpella maydis is a plant pathogenic fungus that causes Diplodia ear rot, one of the most destructive diseases of maize. To date, little information is available regarding the molecular basis of pathogenesis in this organism, in part due to limited genomic resources. In this study, a 54.8 Mb draft genome assembly of S. maydis was obtained with Illumina and PacBio sequencing technologies, and analyzed. Comparative genomic analyses with the predominant maize ear rot pathogens Aspergillus flavus, Fusarium verticillioides, and Fusarium graminearum revealed an expanded set of carbohydrate-active enzymes for cellulose and hemicellulose degradation in S...
November 2017: Fungal Biology
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