Results 251 to 260 of about 15,724 (296)

Arylsulfatase of sea urchin sperm—Distribution of arylsulfatase in the gonads and gametes of echinoderms

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1979
1. Fairly high activities of arylsulfatase are found in the sperm and mature testes of all the sea urchins studied; Strongylocentrotus intermedius, Strongylocentrotus nudus, Hemicentrotus pulcherrimus and Anthocidaris crassispina, whereas the activities in the ovaries and eggs of these animals are low. 2.
Tsuneo Moriya, Motonori Hoshi
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Arylsulfatase of sea urchin sperm

Developmental Biology, 1980
Abstract An arylsulfatase is defined as a lysin of sea urchin sperm from the following evidences. (1) The activity is detected in the sperm of all the sea urchins investigated, and the activity is partially liberated from the cells after the acrosome reaction ( Moriya and Hoshi, 1979 ).
Tsuneo Moriya, Motonori Hoshi
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A new electrophoretic variant of arylsulfatase A

Biochemical Medicine and Metabolic Biology, 1988
Previous work in this laboratory has identified electrophoretic variant forms of arylsulfatase A in leucocyte plus platelets. During a study to replicate and extend these findings, a new seven-band variant of arylsulfatase A has been identified. Purified platelets gave a clearer, more distinct electrophoretic banding pattern than the leucocyte and ...
Paul Manowitz, Sudhansu Chokroverty, James M. Fazzaro, Peter E. Nathan, Rena Nora, Lu Ann Villano Fine   +5 more
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The determination of arylsulfatases in biological fluids

Clinica Chimica Acta, 1970
Abstract A simple, highly sensitive method for the determination of arylsulfatases in serum, urine, saliva and other biological fluids is described. A procedure is given for the preparation of highly purified 4-methylumbelliferone sulfate, the substrate used in this assay.
B.J. Haverback, H. Rinderknecht, M.C. Geokas, C. Carmack   +3 more
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Choroideremia with leukoencephalopathy and arylsulfatase A pseudodeficiency

Journal of the Neurological Sciences, 1996
A 33-year-old male patient was admitted to our hospital because of progressive gait disturbance and involuntary movement of the neck. He showed choroideremia, distal motor neuropathy, and leukoencephalopathy on T2-weighted brain magnetic resonance imaging (MRI).
Satoshi Takenaga, Wataru Matsuyama, Hironobu Kanazawa, Shinji Ijichi, Mitsuhiro Osame, Masaru Kuriyama, Masanori Nakagawa   +6 more
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Studies on the charge isomers of arylsulfatase A

Biochemical Medicine, 1985
Human liver arylsulfatase A was resolved into six fractions by narrow pH range preparative isoelectric focusing. Analytical isoelectric focusing revealed that most enzyme fractions were composed of two adjacent charge isomers. Nevertheless, there was considerable enrichment of charge species which allowed a comparative study of selected properties ...
Katherine K. Tsay, Katherine K. Tsay, Theodore A. Sarafian, Theodore A. Sarafian, William E. Jackson, William E. Jackson, Arvan L. Fluharty, Arvan L. Fluharty, Hayato Kihara, Hayato Kihara   +9 more
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Characterization of human arylsulfatase a glycans

International Journal of Biochemistry, 1994
Despite numerous studies on arylsulfatase A, the structure of the glycans present in each of its two subunits has not been determined. This is important because the carbohydrate component of human arylsulfatase A synthesized in tumor tissues and transformed cells has been shown to undergo apparent changes.
Bogusław Wójczyk, Anna Lityńska, Piotr Laidler, Maria Galka-Wakczak   +3 more
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Late-Onset Metachromatic Leukodystrophy with Early Onset Dementia Associated with a Novel Missense Mutation in the Arylsulfatase A Gene.

Journal of Alzheimer's Disease, 2016
A 48-year-old male patient presented with personality changes and progressive memory loss over 2 years with initially suspected Hashimoto's encephalopathy.
K. Stoeck, M. Psychogios, A. Ohlenbusch, R. Steinfeld, J. Schmidt   +4 more
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Pseudodeficiency of arylsulfatase A: a counseling dilemma

Clinical Genetics, 1987
Arylsulfatase A (ASA) deficiency is the cause of early and late onset metachromatic leukodystrophy (MLD). Low ASA levels are detected in some healthy individuals who are pseudodefi‐cient (PD). PD individuals can be distinguished, because PD fibroblasts hydrolyze14C‐sulfatide at similar rates to normal fibroblasts.
D. A. Wenger, S. Baldinger, Mary Ella M Pierpont   +2 more
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Arylsulfatase Activity of Soils

Soil Science Society of America Journal, 1970
AbstractThe detection of arylsulfatases (enzymes that hydrolyze aryl sulfates) in soils is reported, and a simple method of assaying soil arylsulfatase activity is described. This method involves colorimetric estimation of the p‐nitrophenol released by arylsulfatase activity when soil is incubated with buffered (pH 5.8) potassium p‐nitrophenyl sulfate ...
M. A. Tabatabai, J. M. Bremner
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