The Isolation of Crystalline Erythritol from Normal Human Urine
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چکیده
منابع مشابه
The isolation of crystalline erythritol from normal human urine.
With the finding that xylitol is an intermediate in the glucuronate-xylulose pathway (2, 3)) experiments were undertaken to determine whether this pentitol occurs in human urine. Instead of xylitol, the analyses led to the isolation of n-arabitol from pentosuric urine as well as nL-arabitol from normal urine (4). During the fractionation of urinary polyols on Dowex l-borate columns, eluates wer...
متن کاملA crystalline glycopeptide from normal human urine.
There is abundant evidence that glycosaminoglyeans are linked covalently to the protein in tissues (Mathews & Lozaityte, 1958; Muir, 1958). This fact suggested that isolation and characterization of glycosaminoglycan-peptides, particularly uronic acid-containing glycopeptides in normal urine, will assist in the understanding of the normal metabolism of glycosaminoglycans in tissues. The present...
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The pterins xanthopterin (2-amino-4:6-dihydroxypteridine) (Koschara, 1936) and biopterin (2amino 4 hydroxy-6-[1: 2-dihydroxypropyl (L-erythro)]-pteridine) (Patterson, Saltza & Stokstad, 1956) have been isolated from human urine. It has been suggested that the pterins 2-amino-4-hydroxypteridine-6-carboxylic acid, 2-amino-4-hydroxypteridine and isoxanthopterin (2-amino-4:7-dihydroxypteridine) are...
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In 1950, Deming and Luetscher (1, 2) found that the urine of patients with the nephrotic syndrome or with heart failure showed unusual sodiumretaining activity when assayed in adrenalectomized rats. Hyman (3) observed that the biologically active material was more polar than deoxycorticosterone. Luetscher and Johnson (4) described the chromatographic separation of the highly active, sodium-reta...
متن کاملTHE ISOLATION OF (r-DIHYDROTHEELIN FROM HUMAN PREGNANCY URINE
The quantitative determination of urinary estrogens is being applied widely as a research procedure in the study of normal and pathological conditions. Most investigators have limited their work to the estimation of total estrogenic potency, although it has been known for some time that the urine of pregnant women contains at least two estrogenic compounds, theelin and theelol. Experiments upon...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1960
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)69458-x