このエントリーをはてなブックマークに追加
ID 49939
本文ファイル
著者
NAKAMURA, Koji
キーワード
Diethylstilbestrol
Prostatic cancer
Dihydrotestosterone
Androgen receptor
NDC
医学
抄録(英)
A method for the radioimmunoassay of diethylstilbestrol (DES) was established to evaluate the distribution of DES in patients with prostatic carcinoma receiving intravenous infusion of 500 mg of diethylstilbestrol diphosphate (DES-DP). The plasma DES concentration was markedly elevated to 4.9 μg/ml immediately after DES-DP infusion and rapidly decreased to 0.8 μg/ml at 3 hr after the DES-DP infusion. The DES concentration in the prostatic tissue was 1.6 μgig w.w. at 1 hr after infusion, and thereafter was predominantly similar to that in the plasma. The DES excretion in the urine was 23.7 mg at 0 to 3 hr after DES-DP infusion, and decreased gradually thereafter. In addition, the DES distribution in the subcellular fractions of benign hypertrophic prostates was studied following DES-DP infusion. The DES concentration in the nuclear fraction decreased with time. Furthermore, the protein specifically bound to DES was not detected in the cytosolic fraction. Therefore, the DES converted from DES-DP did not accumulate in the prostate. Subsequently, the bioavailabilities of DES were examined. The dihydrotestosterone (DHT) content of the prostatic tissue was significantly decreased at 24 hr after DES-DP infusion. However, the cytosolic androgen receptor content was insignificantly changed within 24 hr of infusion. Since the plasma luteinizing hormone (LH) level in the castrated patient with prostatic cancer was significantly lowered 3 hr after infusion, and further decreased with time, the main effect of DES was considered to be suppression of hypophyseal function.
掲載誌名
Hiroshima Journal of Medical Sciences
35巻
4号
開始ページ
325
終了ページ
338
出版年月日
1986-12
出版者
Hiroshima University School of Medicine
ISSN
0018-2052
NCID
PubMedID
言語
英語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
部局名
医歯薬学総合研究科
他の一覧