Corrigendum to: Methylated cytokinins from the phytopathogen Rhodococcus fascians mimic plant hormone activity

ABSTRACT The characteristics and nature of the effect of growth hormone on the incorporation of radio-sulfate into the costal cartilage of hypophysectomized rats has been studied. The time-response studies indicate that a reliable estimation of growth hormone activity can be ascertained within a 24 hour period, and a reproducible dose-related response can be obtained at dosage levels ranging from 12-48 μg. Growth hormone stimulates the synthesis of organic sulfates and accumulation of inorganic sulfates within 48 hours.

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ÉTUDES IN VIVO SUR LE MÉTABOLISME DES ANDROGÉNES APRES ADMINISTRATION DE STÉROÏDES INHIBITEURS DE L'OVULATION

Acta Endocrinologica ◽

10.1530/acta.0.0500131 ◽

1965 ◽

Vol 50 (1) ◽

pp. 131-144 ◽

Cited By ~ 1

Author(s):

P. Mauvais-Jarvis ◽

M. F. Jayle ◽

J. Decourt ◽

J. Louchart ◽

J. Truffert

Keyword(s):

Luteinizing Hormone ◽

Urinary Excretion ◽

Normal Subjects ◽

Hormone Activity ◽

Testosterone Production ◽

Normal Men ◽

Ethinyl Oestradiol

ABSTRACT Normal subjects and hirsute women with micropolycystic ovaries were treated with ethinyl-oestrenol + 3-methoxy-ethinyl-oestradiol (Lyndiol®), in view of studying the action of this compound on the production of androgens and on the urinary excretion of their metabolites. In normal men, the production of testosterone and the excretion of androsterone and aetiocholanolone are suppressed, whereas the excretion of other 17-ketosteroids and the production of dehydroepiandrosterone sulphate are unchanged. Moreover, the luteinizing hormone activity (LH) in plasma is depressed. It seems that the preparation inhibits specifically the testicular androgen production, by suppressing the hypothalamo-hypophyseal control of LH. Testosterone production and urinary 17-ketosteroid excretion are modified in the same way in women with Stein-Leventhal's syndrome. Physiopathological and therapeutical implications which come from these results are discussed.

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THE EXTRACTION OF PROLACTIN FROM HUMAN PITUITARY GLANDS

Acta Endocrinologica ◽

10.1530/acta.0.0490001 ◽

1965 ◽

Vol 49 (1) ◽

pp. 1-16 ◽

Cited By ~ 12

Author(s):

M. Apostolakis

Keyword(s):

Growth Hormone ◽

Pituitary Gland ◽

List Type ◽

Distilled Water ◽

Hormone Activity ◽

Isoelectric Precipitation ◽

Human Pituitary ◽

Pituitary Glands ◽

Prolactin Content ◽

The Mean

ABSTRACT A method for the extraction of prolactin from human pituitary glands is described. It is based on acetone drying, distilled water extraction, acetone and isoelectric precipitation. Two main products are obtained: Fraction R8 with a mean prolactin activity of 12.2 IU/mg and fraction U8 with a mean prolactin activity of 8.6 IU/mg. The former fraction does not contain any significant gonadotrophin activity and the latter contains on an average 50 HMG U/mg. In both cases contamination with ACTH and MSH is minimal. The growth hormone activity of both these fractions is low. It is postulated that in man too, prolactin and growth hormone are two distinct hormones. A total of 1250 human pituitary glands have been processed by this method. The mean prolactin content per pituitary gland has been found to be 73 IU.

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THE EFFECT OF THYROID AND KIDNEY SLICES ON THYROTROPHIC HORMONE ACTIVITY OF THE INCUBATION MEDIUM

Acta Endocrinologica ◽

10.1530/acta.0.0190244 ◽

1955 ◽

Vol 19 (3) ◽

pp. 244-248 ◽

Cited By ~ 3

Author(s):

A. A. H. Kassenaar ◽

H. Kerkhofs

Keyword(s):

Incubation Medium ◽

Hormone Activity ◽

Kidney Slices ◽

Thyrotrophic Hormone

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CLINICAL EVALUATION OF THE THYROID STIMULATING HORMONE ACTIVITY IN EXOPHTHALMOS

Acta Endocrinologica ◽

10.1530/acta.0.0380577 ◽

1961 ◽

Vol 38 (4) ◽

pp. 577-584 ◽

Cited By ~ 3

Author(s):

Sven Erik Björkman ◽

Torsten Denneberg ◽

Inge Hedenskog

Keyword(s):

Clinical Evaluation ◽

Thyroid Stimulating Hormone ◽

Significant Rise ◽

Hormone Activity ◽

Control Subjects ◽

Long Duration ◽

Stimulating Factor ◽

Stimulating Hormone

ABSTRACT A method for demonstrating the presence of a thyroid stimulating factor in the blood of patients with progressive exophthalmos after thyroidectomy or after treatment with radioiodine is described. The method consists of transfusing freshly drawn blood from the patients to euthyroid recipients and subsequently following the PBI level of the recipients at regular intervals. Six exophthalmic patients tested in this manner were found to have such a factor in their circulating blood. After transfusion of their blood a significant rise in the PBI level of the recipients could be demonstrated. Two other patients, one with exophthalmos of long duration did not show this response nor did it occur after transfusion of blood from two control subjects. In one case the action of this factor was compared with that of animal thyrotrophin and found to be of the same magnitude.

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