References of "Stevenaert, Achille"
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See detailEarly normalization of luteinizing hormone pulsatility after successful transsphenoidal surgery in women with microprolactinomas
Stevenaert, Achille ULg; Beckers, Albert ULg; Vandalem, J. L. et al

in Journal of Clinical Endocrinology and Metabolism (1986), 62(5), 1044-1047

In eight hyperprolactinemic amenorrheic women who had a microprolactinoma, LH secretion was examined by measuring its concentration in blood samples collected every 15 min for 6 h before and 8 days after ... [more ▼]

In eight hyperprolactinemic amenorrheic women who had a microprolactinoma, LH secretion was examined by measuring its concentration in blood samples collected every 15 min for 6 h before and 8 days after successful selective adenomectomy. Computer analysis was used for LH peak evaluation. In both circumstances, serum PRL and basal estradiol (E2) levels were also determined. Before operation, the number of LH peaks ranged from zero to one per 6 h in seven patients and was two per 6 h in the eighth patient. In all patients, serum PRL was normal on the eighth postoperative day, while E2 levels remained low, similar to the values usually found in the early follicular phase of the cycle in normal women. Postoperatively, mean LH levels were similar to preoperative levels, but there was a dramatic increase in the number of LH peaks (three to five per 6 h) in five of the eight patients. These observations confirm the impairment of LH pulsatility in hyperprolactinemiaand demonstrate that normalization of PRL levels by surgery can restore LH pulsatile secretion in certain women as early as the eighth day after operation in the absence of a significant change in serum E2 levels. Thus, the preoperative impaired pulsatility of LH secretion was probably a central effect of hyperprolactinemia. [less ▲]

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See detailtreatment of acromegaly with the somatostatin analogue SMS201-995 (Sandoz)
Beckers, Albert ULg; Stevenaert, Achille ULg; thibaut, a et al

in Internatinal Symposium Somatostatin - Abstract book (1986)

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See detailPreoperative treatment of acromegalics with SMS 201-995
Stevenaert, Achille ULg; Beckers, Albert ULg; De longueville, M. et al

in Acromegaly centennial symposium - Abstract book (1986)

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See detailImmunocytochemical demontration of hormones in cell granules of several human pituitary adenomas
Beckers, Albert ULg; Courtoy, R.; Stevenaert, Achille ULg et al

in Histochemical Journal (The) (1986), 18(1), 55

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See detailTreatment of acromegaly with the somatostatin analogue SMS 201-995
Beckers, Albert ULg; Stevenaert, Achille ULg; Thibaut, A. et al

Conference (1986)

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See detailImmunocytochemical demonstration of hormones in cells granules of several human pituitary adenomas
Beckers, Albert ULg; Stevenaert, Achille ULg; Courtoy, R. et al

in Histochemical Journal (The) (1986)

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See detailLe rein acromégale est-il hyperfiltrant ?
Chachati, A.; Beckers, Albert ULg; Stevenaert, Achille ULg et al

in Proceedings des Fonds de la Recherche Scientifique Médicale. (1986)

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See detailFollicle Stimulating Hormone -Secreting Pituitary adenomas
Beckers, Albert ULg; Stevenaert, Achille ULg; Mashiter, K. et al

in Journal of Clinical Endocrinology and Metabolism (1985), 61(3), 525-528

This retrospective study concerns 40 patients with an apparently nonsecretory pituitary adenoma who were operated on during an 11-yr period from 1971 to 1981. Among them, 6 men had elevated serum FSH ... [more ▼]

This retrospective study concerns 40 patients with an apparently nonsecretory pituitary adenoma who were operated on during an 11-yr period from 1971 to 1981. Among them, 6 men had elevated serum FSH levels. LH levels were normal in 5 and slightly elevated in 1. Testosterone levels were low in 2 patients and within normal limits in 2 others. Sexual impotency had developed from 6 months to 1 yr before surgery in all patients. Primary hypogonadism could be eliminated on clinical grounds (recent onset of hypogonadism, previous fertility of 5 of the 6, and postoperative improvement). After transsphenoidal adenomectomy, FSH levels returned to normal values in all, and clinical recovery occurred in most patients. Tumor tissue obtained at operation stained positively for the gonadotropins, but was negative for other pituitary hormones in all patients. The most probable explanation for these findings was that the tumors were responsible for the elevated FSH secretion. This explanation is supported by the immunocytochemical identification of gonadotropin-containing cells in the tumors. We conclude that these 6 men frm a series of 40 patients who presented with pituitary tumor but no GH, PRL, or ACTH hypersecretion had primary gonadotropinomas. [less ▲]

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See detailLocalisation ultrastructurale d'hormones hypophysaires par reaction immunocytochimique sur coupes fines d'adenomes.
Beckers, Albert ULg; Courtoy, R.; Reznik, Michel ULg et al

in Comptes Rendus des Séances de la Société de Biologie et de ses Filiales (1985), 179(3), 397-402

Human pituitary adenomas were fixed in glutaraldehyde and embedded in epon. Ultrathin sections were incubated either with anti-hGH, anti-hPRL or anti-hLH. They were incubated with second step goat anti ... [more ▼]

Human pituitary adenomas were fixed in glutaraldehyde and embedded in epon. Ultrathin sections were incubated either with anti-hGH, anti-hPRL or anti-hLH. They were incubated with second step goat anti-rabbit immunoglobulins linked to gold particles. Two PRL secreting adenomas, one GH and PRL secreting adenoma, one ACTH secreting adenoma and two non secreting adenomas were studied. The specificity and the limits of the method were discussed in relation with the results obtained in light microscopy with the PAP method. [less ▲]

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See detailEffect of transphenoidal surgery on the LH pulsatility in women with microprolactinomas
Stevenaert, Achille ULg; Beckers, Albert ULg; vandalem, jl et al

in Journal of Endocrinological Investigation (1985)

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See detailImmunogold staining of pituitary hormones in human adenoma biopsies
courtoy, r; Beckers, Albert ULg; Stevenaert, Achille ULg et al

in Biology of the Cell (1985)

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See detailUltrastructural immunocytochemical localization of hormones in human pituitary adenomas
Beckers, Albert ULg; Courtoy, R.; Stevenaert, Achille ULg et al

in Neuroendocrinology letters (1985)

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See detailCushing's disease : episodic pattern of hypersecretion with two distinct rhythms
Beckers, Albert ULg; Stevenaert, Achille ULg; Hennen, G.

in Journal of Endocrinological Investigation (1985)

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See detailImmunogold staining of pituitary hormones in human adenoma biopsies.
Beckers, Albert ULg; Courtoy, R.; Reznik, Michel ULg et al

in Biology of the Cell (1985)

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See detailEtude clinique et biologique de la fonction hypophyso-gonanique dans les prolactinomes.
Beckers, Albert ULg; Stevenaert, Achille ULg; Hennen, G. et al

in Acta Clinica Belgica (1985)

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See detailEffect of transsphenoidal surgery on the LH pulsatility in women with microprolactinomas.
Beckers, Albert ULg; Stevenaert, Achille ULg; Vandalem, J. L. et al

in Journal of Endocrinological Investigation (1985)

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See detailNon secreting pituitary adenomas : a revised diagnosis.
Beckers, Albert ULg; Stevenaert, Achille ULg; Madhiter, K. et al

in 3rd European Workshop on Pituitary Adenomas, Amsterdam, September. (1983)

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See detailNon secreting pituitary adenomas : a revised diagnosis.
Beckers, Albert ULg; Stevenaert, Achille ULg; Hennen, G. et al

Conference (1983)

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