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#28748103   2017/07/27 Save this To Up

Role of ghrelin in the pancreatic exocrine secretion via mitogen-activated protein kinase signaling in rats.

This study was performed to investigate the impact of exogenous ghrelin on the pancreatic α-amylase outputs and responses of pancreatic proteins to ghrelin that may relate to pancreatic exocrine.

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#27814716   2016/11/05 Save this To Up

The inhibitory activity of herbal medicines on the keys enzymes and steps related to carbohydrate and lipid digestion.

Obesity and overweight are consistently associated with metabolic disorders including hyperglycemia and hyperlipidemia. Herbal medicines have been currently suggested as an alternative source of potentially useful antihyperglycemic, antihyperlipidemic, antioxidant activities. The objective of this study was to assess the in vitro inhibitory effects of eleven herbal medicines on carbohydrate and lipid digestive enzymes and the key steps of lipid digestion including the inhibition of micelle formation and the ability to bind bile acid. In addition, antioxidant activity of herbal medicines was also investigated.

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#27283705   2016/06/10 Save this To Up

A simple microplate-based method for the determination of α-amylase activity using the glucose assay kit (GOD method).

For the first time, a reliable, simple, rapid and high-throughput analytical method for the detection and quantification of α-amylase inhibitory activity using the glucose assay kit was developed. The new method facilitates rapid screening of a large number of samples, reduces labor, time and reagents and is also suitable for kinetic studies. This method is based on the reaction of maltose with glucose oxidase (GOD) and the development of a red quinone. The test is done in microtitre plates with a total volume of 260μL and an assay time of 40min including the pre-incubation steps. The new method is tested for linearity, sensitivity, precision, reproducibility and applicability. The new method is also compared with the most commonly used 3,5-dinitrosalicylic acid (DNSA) method for determining α-amylase activity.

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#27158210   2016/05/09 Save this To Up

Serum Mac-2 binding protein is a novel biomarker for chronic pancreatitis.

To determine the efficacy of Mac-2 binding protein (Mac-2bp) for diagnosis of chronic pancreatitis.

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#27124664   2016/05/13 Save this To Up

Reference ranges for cortisol and α-amylase in mother and newborn saliva samples at different perinatal and postnatal periods.

This paper describes a reliable analytical method based on Ultra High-Performance Liquid Chromatography coupled to tandem mass spectrometry to determine cortisol in saliva samples from healthy mothers (n=87) and newborns (n=65) at different time points: (i) 38 weeks of gestation, (ii) in the immediate postnatal period (48h) after a term delivery and, (iii) 3 months after delivery. The procedure is characterized by a simple sample treatment employing a sample volume of 25μL. In addition to this, salivary α-amylase was determined using a commercial kit. We have proposed potential reference ranges in saliva for cortisol (0.7-35nmolL(-1)) and α-amylase (2-500UmL(-1)) in mothers, and for cortisol (0.1-56nmolL(-1)) and α-amylase (0.1-500UmL(-1)) in newborn infants. In addition, statistical differences between the two sensitive population groups (mothers and newborns) at the perinatal and postnatal periods were studied. A lower concentration for maternal cortisol was found at 38 weeks of gestation than at 48h (p=0.048) or 3 months after delivery (p=0.021). Similar results were found for the α-amylase determinations. Hence, higher concentrations than could be expected from a chronic stress marker were found at 3 months after delivery than at 38 weeks of gestation (p<0.001) or 48h after delivery (p<0.001). We conclude that this analytical method could be applied to further clinical research on perinatal and postnatal stress, such as threatened preterm labor and/or parenting stress, respectively.

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#27070966   2016/04/13 Save this To Up

Mumps in the Czech Republic in 2013: Clinical Characteristics, Mumps Virus Genotyping, and Epidemiological Links.

The aim of the study was to map the incidence of mumps in the Czech Republic in terms of clinical symptoms, epidemiological links, and characteristics of circulating genotypes.

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#26258015   2015/08/10 Save this To Up

Saliva as a prediction tool for dental caries: An in vivo study.

The present study was undertaken to assess the caries activity by comparing the pH, buffering capacity, calcium, phosphorous, amylase along with the association of mutans in saliva for caries-free and caries-active children and to find out the interrelationship amongst the two groups.

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#26212779   2016/07/13 Save this To Up

Comparison of Four Saliva Detection Methods to Identify Expectorated Blood Spatter.

Blood spatter analysis is an important step for crime scene reconstruction. The presence of saliva in blood spatter could indicate expectorated blood which is difficult to distinguish from impact spatter. In this study, four saliva test methods (SALIgAE(®) , Phadebas(®) sheet, RSID(™) -Saliva kit, and starch gel diffusion) were compared to identify the best method for detecting expectorated blood spatter. The RSID(™) -Saliva kit showed the highest sensitivity even when saliva was mixed with blood, and was not inhibited by the presence of blood. The SALIgAE(®) test provided easy and rapid results, but the yellow color of a positive reaction was overwhelmed by the red color of the blood. The starch gel diffusion method and the Phadebas(®) sheet exhibited relatively low sensitivity and the assay took a long time. When using the RSID(™) -Saliva kit for identifying saliva in blood, results should be read within 10 min.

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#25907330   2015/07/27 Save this To Up

Biochemical, structural and functional diversity between two digestive α-amylases from Helicoverpa armigera.

Helicoverpa armigera (Lepidoptera) feeds on various plants using diverse digestive enzymes as one of the survival tool-kit. The aim of the present study was to understand biochemical properties of recombinant α-amylases of H. armigera viz., HaAmy1 and HaAmy2.

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Twort's Counterstain Kit Androgen Receptor (Phosph Androgen Receptor (Phosph Rabbit Anti-Human Androge Rabbit Anti-Human Androge Androgen Receptor (Ab 650 AZD-3514 Mechanisms: Andr 17β-Acetoxy-2α-bromo-5 (5α,16β)-N-Acetyl-16-[2 (5α,16β)-N-Acetyl-16-ac 5α-N-Acetyl-2'H-androst- 5α-N-Acetyl-2'H-androst-

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#25873983   2015/04/15 Save this To Up

Different Proportions of Huangqi (Radix Astragali Mongolici) and Honghua (Flos Carthami) Injection on α-Glucosidase and α-Amylase Activities.

Objective. To study the effect of different proportions of Huangqi (Radix Astragali Mongolici) and Honghua (Flos Carthami) injection on α-glucosidase and α-amylase activity simultaneously. Methods. The injections were prepared according to the standards of the China Food and Drug Administration. The assay for potential α-glucosidase inhibitors was based on the hydrolysis of 4-methylumbelliferyl-α-D-glucopyranoside (4-MUG). The α-amylase EnzChek assay kit was used to determine potential α-amylase inhibitors. Acarbose was the positive control. Results. The half maximal (50%) inhibitory concentration (IC50) of acarbose against α-glucosidase and α-amylase was (1.8 ± 0.4) μg/mL and (227 ± 32) μg/mL, respectively. Honghua showed significant inhibition of α-glucosidase activity compared with Huangqi (P < 0.01). Honghua inhibited α-amylase activity, but Huangqi did not. IC50s for α-glucosidase inhibition by mixtures at 10 : 1, 5 : 1, and 2 : 1 were significantly lower than those at the 20 : 1 mixture (P < 0.01). α-Amylase inhibition by the 2 : 1 mixture was significantly higher than that by the 20 : 1, 10 : 1, and 5 : 1 mixtures at 500 μg/mL and 1000 μg/mL (P < 0.01), with 5 : 1 significantly higher than 20 : 1 and 10 : 1 at 1000 μg/mL (P < 0.01). Conclusion. Honghua significantly inhibited α-glucosidase activity compared with Huangqi (P < 0.01). For simultaneous inhibition of α-glucosidase and α-amylase activities, the mixtures at 2 : 1 and 5 : 1 exhibited significant effects compared with those at 20 : 1 (P < 0.01).

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