Results 151 to 160 of about 23,204,048 (210)

Multi-spectral techniques and molecular docking to investigation of the interaction between ferulic acid and pepsin.

Spectrochimica Acta Part A - Molecular and Biomolecular Spectroscopy, 2021
In this work, the interaction between ferulic acid (FA) and pepsin was explored by UV-visible absorption spectroscopy, fluorescence spectroscopy, synchronous fluorescence, circular dichroism (CD) spectroscopy, Fourier transform infrared spectroscopy (FT ...
Sujuan Zhu, Xuexue Bai, Jing Zhu, Wen Li, Bing Wang   +4 more
semanticscholar   +1 more source

Evaluation of the effects of isoniazid and rifampin on the structure and activity of pepsin enzyme by multi spectroscopy and molecular modeling methods.

Spectrochimica Acta Part A - Molecular and Biomolecular Spectroscopy, 2021
Pepsin is an aspartic protease that is involved in the digestion of food in the stomach of mammals. Continuous and long-term use of therapeutic agents will cause chronic contact of the drug with pepsin, and as a result, the structure and function of ...
S. Moradi, P. Ahmadi, C. Karami, N. Farhadian, Fatemeh Balaei, Mohabbat Ansari, M. Shahlaei   +6 more
semanticscholar   +1 more source

The interaction of Naphthol Yellow S (NYS) with pepsin: Insights from spectroscopic to molecular dynamics studies.

International Journal of Biological Macromolecules, 2020
The effects of Naphthol Yellow S (NYS) on the structure and activity of pepsin were carried out using ultraviolet-visible (UV-Vis) spectroscopy, intrinsic fluorescence spectroscopy, circular dichroism (CD), thermal stability, kinetic techniques, as well ...
F. Shahraki, B. Shareghi, S. Farhadian
semanticscholar   +1 more source

Pepsin and antacid therapy: A dilemma

Journal of Chemical Education, 1979
Illustrates some areas of uncertainty in the current literature regarding the mechanism of digestion and presents an experiment that is more consistent with current biochemical research.
Patty H. Laswick, W. Brayton Batson
openaire   +1 more source

Structure and physical properties of gelatin from bovine bone collagen influenced by acid pretreatment and pepsin

, 2020
Effects of different acids and pepsin on the properties of gelatins extracted from bovine bone collagen were investigated. Pretreatment of bovine bone by different acids (hydrochloric acid, acetic acid, and citric acid) with and without pepsin was ...
Songmin Cao, Yi Wang, Lujuan Xing, Wangang Zhang, G. Zhou   +4 more
semanticscholar   +1 more source

A History Of Pepsin And Related Enzymes

The Quarterly Review of Biology, 2002
Studies on gastric digestion during 1820-1840 led to the discovery of pepsin as the agent which, in the presence of stomach acid, causes the dissolution of nutrients such as meat or coagulated egg white. Soon afterward it was shown that these protein nutrients were cleaved by pepsin to diffusible products named peptones.
openaire   +2 more sources

Gastrin, a Stimulant of Pepsin Secretion

Archives of Surgery, 1963
In theoretical considerations of the mechanism of gastric secretion, suggestions have been made that irrespective of whether the initial stimulus to the gastric glands is nervous by way of the vagi or hormonal by way of gastrin, the ultimate final common pathway for these stimuli may be the release of histamine.
openaire   +2 more sources

A turbidimetri milk-clotting assay for pepsin

Analytical Biochemistry, 1976
Abstract The action of pepsin on a dilute solution of skim milk produces a sigmoidal increase in the turbidity of the solution. The time course of the increase depends on the amount of pepsin present. Turbidity changes can be measured in a recording spectrophotometer, providing an automated form of the milk clotting assay, which will easily determine
openaire   +2 more sources

Correlation of salivary and nasal lavage pepsin with MII‐pH testing

The Laryngoscope, 2020
Laryngopharyngeal reflux (LPR) is a common upper airway disease. Salivary pepsin is a proposed marker for LPR; however, the optimal time for collection of specimens for pepsin detection and pepsin's presence in the oral and nasal secretions relative to ...
Miles J. Klimara, Nikki Johnston, Tina L Samuels, A. Visotcky, David M. Poetker, T. Loehrl, J. Blumin, J. Bock   +7 more
semanticscholar   +1 more source

Interactions of Surface-Functionalized Starch Nanoparticles with Pepsin and Trypsin in Simulated Gastrointestinal Fluids.

Journal of Agricultural and Food Chemistry, 2020
Nanoparticles (NPs) can form a protein corona (PC) with proteins in biological fluids. We examined whether starch nanoparticles (SNPs) form a PC and interact with digestive enzymes in simulated gastric and intestinal fluids.
Yihui Wang, Yujing Sun, Jie Yang, Lei Dai, N. Ji, L. Xiong, Qingjie Sun   +6 more
semanticscholar   +1 more source