Mucolytic enzyme systems. XI. Hyaluronidase inhibitor and serum mucoproteins in patients with lipoid nephrosis and acute glomerulonephritis

EFFECTS OF REPRODUCTIVE STAGE, SEX, AND GONADAL HORMONES ON HEXOSAMINE AND PROTEIN LEVELS OF AVIAN AND BOVINE SERA

The levels of avian and bovine sera were determined for a number of animals of both sexes and different reproductive stages. The contents of both hexosamine and protein were higher in bovine than in avian serum. Maturation brought a large increase of the serum hexosamine in the female fowl and a small increase in the cow. Pregnancy brought a moderate increase of the hexosamine level in the cow. The hexosamine: protein ratio was smaller and more constant in the bovine than in the avian serum. The variances of the serum hexosamine and protein determinations were partitioned into analytical and biological variance and the analytical variance of hexosamine determination was partitioned into hydrolytic and colorimetric variance. The biological variance was much larger than the analytical, and for the determination of hexosamine the colorimetric variance was larger than the hydrolytic.In another study the effect o gonadal hormones on the level of serum hexosamine and on the value of hexosamine: protein ratio in the fowl was investigated by two experiments with immature pullets. Administration of estrogen increased the hexosamine content of serum and decreased the hexosamine: protein ratio. There were indications that the effect of estrogen on serum hexosamine was enhanced by androgen and was depressed by androgen plus progesterone.

EFFECTS OF REPRODUCTIVE STAGE, SEX, AND GONADAL HORMONES ON HEXOSAMINE AND PROTEIN LEVELS OF AVIAN AND BOVINE SERA

The levels of avian and bovine sera were determined for a number of animals of both sexes and different reproductive stages. The contents of both hexosamine and protein were higher in bovine than in avian serum. Maturation brought a large increase of the serum hexosamine in the female fowl and a small increase in the cow. Pregnancy brought a moderate increase of the hexosamine level in the cow. The hexosamine: protein ratio was smaller and more constant in the bovine than in the avian serum. The variances of the serum hexosamine and protein determinations were partitioned into analytical and biological variance and the analytical variance of hexosamine determination was partitioned into hydrolytic and colorimetric variance. The biological variance was much larger than the analytical, and for the determination of hexosamine the colorimetric variance was larger than the hydrolytic.In another study the effect o gonadal hormones on the level of serum hexosamine and on the value of hexosamine: protein ratio in the fowl was investigated by two experiments with immature pullets. Administration of estrogen increased the hexosamine content of serum and decreased the hexosamine: protein ratio. There were indications that the effect of estrogen on serum hexosamine was enhanced by androgen and was depressed by androgen plus progesterone.

A heparin-precipitable fraction of human plasma. II. Occurrence and significance of the fraction in normal individuals and in various disease states

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