Results 21 to 30 of about 1,218,633 (316)

Enzymatic Analysis of Yeast Cell Wall-Resident GAPDH and Its Secretion

open access: yesmSphere, 2020
In yeast, many proteins are found in both the cytoplasmic and extracellular compartments, and consequently it can be difficult to distinguish nonconventional secretion from cellular leakage.
Michael J. Cohen   +2 more
doaj   +1 more source

A Modified Kulka Micromethod for the Rapid and Safe Analysis of Fructose and 1-Deoxy-d-xylulose-5-phosphate

open access: yesMetabolites, 2018
The Kulka resorcinol assay (Kulka, R.G., Biochemistry 1956, 63, 542⁻548) for ketoses has been widely used in the literature but suffers from two major disadvantages: (a) it employs large amounts of potentially harmful reagents for a general biology
Shreya Shaw, Robin Ghosh
doaj   +1 more source

Application of Capillary Electrophoresis with Laser-Induced Fluorescence to Immunoassays and Enzyme Assays

open access: yesMolecules, 2019
Capillary electrophoresis using laser-induced fluorescence detection (CE-LIF) is one of the most sensitive separation tools among electrical separation methods.
Binh Thanh Nguyen, Min-Jung Kang
doaj   +1 more source

A rare PHKA2 variant (p.G991A) identified in a patient with ketotic hypoglycemia

open access: yesJIMD Reports, 2019
We describe the case of a 4‐year‐old boy who suffered from frequent ketotic hypoglycemia (KH) but did not have hepatomegaly or elevated liver enzyme levels. However, the patient was found to have a rare variant in the PHKA2 gene. To detect the underlying
Yasuhiko Ago   +7 more
doaj   +1 more source

Comparison of Oxygen Electrode Chronoamperometry and Spectrophotometry for Determination of Catalase Activity

open access: yesOxygen, 2023
Catalase is a key antioxidative enzyme, and a deficiency or malfunction of catalase is hypothesized to be related to various diseases. To investigate catalase activity, it is important to use reliable methods and experimental protocols enabling ...
Michal Szczepanczyk   +3 more
doaj   +1 more source

A fast, sensitive and fluorescent LPMO activity assay

open access: yesFrontiers in Microbiology, 2023
Lytic polysaccharide monooxygenases (LPMOs) are industrially relevant enzymes that utilize a copper co-factor and an oxygen species to break down recalcitrant polysaccharides.
Johan Ø. Ipsen   +2 more
doaj   +1 more source

Enzyme Immunoassay and Enzyme-Linked Immunosorbent Assay [PDF]

open access: yesJournal of Investigative Dermatology, 2013
inTrOducTiOn Enzyme immunoassay (EIA) and enzyme-linked immunosorbent assay (ELISA) are both widely used as diagnostic tools in medicine and as quality control measures in various industries; they are also used as analytical tools in biomedical research for the detection and quantification of specific antigens or antibodies in a given sample. These two
Gan, Stephanie D., Patel, Kruti R.
openaire   +2 more sources

The Development of Assays for Heparanase Enzymatic Activity: Towards a Gold Standard

open access: yesMolecules, 2018
The enzyme heparanase, an endo-β-glucuronidase, degrades heparan sulfate (HS) chains on the cell surface and in the extracellular matrix. Heparanase regulates numerous biological processes that drive tumour growth, metastasis and angiogenesis.
Mohit Chhabra, Vito Ferro
doaj   +1 more source

Inhibition of Tryptophan Hydroxylases and Monoamine Oxidase-A by the Proton Pump Inhibitor, Omeprazole—In Vitro and In Vivo Investigations

open access: yesFrontiers in Pharmacology, 2020
Serotonin (5-HT) is a hormone and neurotransmitter that modulates neural activity as well as a wide range of other physiological processes including cardiovascular function, bowel motility, and platelet aggregation.
Nibal Betari   +14 more
doaj   +1 more source

Chia (Salvia hispanica) Seed Oil Modulates the Haemato-Immunological Response, Antioxidative Status and Cytokine Gene Expression of Tropical Freshwater Teleost, Labeo rohita

open access: yesBiology
The present investigation attempts to evaluate the impact of the dietary inclusion of chia (Salvia hispanica) seed oil (CSO) on the indices of haemato-immunology, metabolic enzymes, and expression of immune-responsive cytokine genes in Labeo rohita (rohu)
Sanjay Kumar Gupta   +4 more
doaj   +1 more source

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