Histidyl-proline diketopiperazine (His-Pro DKP) immunoreactivity is present in the glucagon-containing cells of the human fetal pancreas.

Histidyl-proline diketopiperazine (His-Pro DKP) immunoreactivity is present in the glucagon-containing cells of the human fetal pancreas.
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组氨酰脯氨酸二酮哌嗪 (His-Pro DKP) 免疫反应性存在于人胎儿胰腺的含胰高血糖素细胞中。

DOI:
10.1172/jci112897
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发表时间:
1987
期刊:
The Journal of clinical investigation
影响因子:
--
通讯作者:
Dubois,PM
Dubois,PM
中科院分区:
--
文献类型:
--
作者:
Leduque,P;Jackson,IM;Kervran,A;Aratan-Spire,S;Czernichow,P;Dubois,PM

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用间接抗体-酶法在半薄切片上对12 ~ 19周龄人胎胰腺的组氨酰脯氨酸二酮哌嗪(His-Pro DKP)细胞进行了定位。为了研究它们的精细结构,使用了两种技术:一种叠加技术,包括半薄和电子显微镜制备的相同细胞的比较,和一种免疫细胞化学技术,使用未标记的抗体过氧化物酶-抗过氧化物酶法对切片进行染色。我们的结果表明:(a)同一细胞对His-Pro DKP和胰高血糖素/胰高血糖素/胰高血糖素均呈阳性;(B)His-Pro DKP免疫反应细胞具有极不透电子的分泌颗粒,这意味着这些细胞对应于A细胞;(c)在分泌颗粒上发现His-Pro DKP免疫反应。我们假设两种肽His-Pro DKP和促甲状腺激素释放激素(TRH)具有独立的来源,因为TRH存在于B细胞中。图片
Histidyl-proline diketopiperazine (His-Pro DKP) cells in the pancreas of human fetuses aged between 12 and 19 wk were localized by the indirect antibody-enzyme method on semithin sections. To study their fine structure, two techniques were used: a superimposition technique consisting of comparison of the same cells in semithin and electron microscopic preparations, and an immunocytochemical technique on ultrathin sections using the unlabeled antibody peroxidase-antiperoxidase method. Our results show that (a) the same cells are positive for both His-Pro DKP and glucagon/glicentin, (b) His-Pro DKP immunoreactive cells possess extremely electron-opaque secretory granules, implying that these cells correspond to the A cells, and (c) His-Pro DKP immunoreactivity is found over the secretory granules. We hypothesize that the two peptides His-Pro DKP and thyrotropin-releasing hormone (TRH) have independent origins, since TRH is found in the B cells.Images
出生时链脲佐菌素治疗会导致大鼠胰腺在发育过程中同时消耗促甲状腺素释放激素和胰岛素。
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发表时间: 1984
期刊: Endocrinology
影响因子: 4.8
作者:
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通讯作者: P. Czernichow
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影响因子: 4.8
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发表时间: 1980
影响因子: 11.1
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发表时间: 1980
期刊: Acta Endocrinologica
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DOI: --
发表时间: 1982
影响因子: --
作者:
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