Biomaterial Database

Urinary alpha-naphthyl acetate esterases: a preliminary screening test for bladder cancer. 1981

S M El-Sewedy, and A M Arafa, and M H Mostafa, and S M El-Zoghby

The urinary activities of alpha-naphthyl acetate esterases were measured for groups of bilharzial and nonbilharzial patients with benign urologic diseases and for others with bladder cancer. All these patients showed elevation in the urinary enzyme activity over that given by healthy controls. Bilharzial and nonbilharzial bladder cancer patients exhibited significant increase in urinary enzyme activity as compared with corresponding groups with benign urologic diseases A level of 50 units of enzyme activity was taken as a limit to discriminate between bladder cancer patients and those patients with benign urologic diseases. The specificity and sensitivity of this urinary test exceeded 90% with low falsely positive and negative results. The data of the present study recommended the use of urinary alpha-naphthyl acetate esterases activity as a preliminary screening test for bilharzial and nonbilharzial bladder cancer patients.

UI	MeSH Term	Description	Entries
D009283	Naphthol AS D Esterase	Hydrolytic enzyme activity used as a histocytochemical test for the presence of esterases in tissue. Substrate used is 3-hydroxy-4'-nitro-2-naphthanilide chloroacetate (naphthol AS-D).	ANAE,Naphthol AS D Acetatesterase,Naphthol AS D Chloroacetate Esterase,alpha-Naphthyl Acetate Esterase,alpha Naphthylesterase,alpha-Naphthylacetate Esterase,Acetate Esterase, alpha-Naphthyl,Esterase, alpha-Naphthyl Acetate,Esterase, alpha-Naphthylacetate,Naphthylesterase, alpha,alpha Naphthyl Acetate Esterase,alpha Naphthylacetate Esterase
D001749	Urinary Bladder Neoplasms	Tumors or cancer of the URINARY BLADDER.	Bladder Cancer,Bladder Neoplasms,Cancer of Bladder,Bladder Tumors,Cancer of the Bladder,Malignant Tumor of Urinary Bladder,Neoplasms, Bladder,Urinary Bladder Cancer,Bladder Cancers,Bladder Neoplasm,Bladder Tumor,Cancer, Bladder,Cancer, Urinary Bladder,Neoplasm, Bladder,Neoplasm, Urinary Bladder,Tumor, Bladder,Tumors, Bladder,Urinary Bladder Neoplasm
D002265	Carboxylic Ester Hydrolases	Enzymes which catalyze the hydrolysis of carboxylic acid esters with the formation of an alcohol and a carboxylic acid anion.	Carboxylesterases,Ester Hydrolases, Carboxylic,Hydrolases, Carboxylic Ester
D003951	Diagnostic Errors	Incorrect or incomplete diagnoses following clinical or technical diagnostic procedures.	Diagnostic Blind Spots,Errors, Diagnostic,Misdiagnosis,Blind Spot, Diagnostic,Blind Spots, Diagnostic,Diagnostic Blind Spot,Diagnostic Error,Error, Diagnostic,Misdiagnoses
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012552	Schistosomiasis	Infection with flukes (trematodes) of the genus SCHISTOSOMA. Three species produce the most frequent clinical diseases: SCHISTOSOMA HAEMATOBIUM (endemic in Africa and the Middle East), SCHISTOSOMA MANSONI (in Egypt, northern and southern Africa, some West Indies islands, northern 2/3 of South America), and SCHISTOSOMA JAPONICUM (in Japan, China, the Philippines, Celebes, Thailand, Laos). S. mansoni is often seen in Puerto Ricans living in the United States.	Bilharziasis,Katayama Fever,Schistoma Infection,Bilharziases,Fever, Katayama,Infection, Schistoma,Infections, Schistoma,Schistoma Infections,Schistosomiases