Abstract:
:Three sites of somatostatin-synthesizing perikarya, or a related antigen, were determined by immunofluorescence in the hypothalamus of the tadpole, Alytes obstetricans (Amphibia, Anura). Two sites of neurosecretory perikarya were localized in the preoptic nuclei of the anterior hypothalamus; the axons extended either to the anterior diencephalon or to the median eminence and the pituitary. The third site was found in the posterior hypothalamus. These neurosecretory cells showed a strong immunofluorescent reaction; their axons all terminated at the level of the median eminence. Somatostatin cells were only found in intact or hypophysectomized tadpoles given somatotropin (STH). The strong reaction observed in hypophysectomized tadpoles was possibly due to the loss of the terminal portion of the neurosecretory pathway (median eminence and pituitary) by which the agent is transported to the site of discharge.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Rémy C,Dubois MPdoi
10.1007/BF00224373subject
Has Abstractpub_date
1978-02-24 00:00:00pages
315-21issue
2eissn
0302-766Xissn
1432-0878journal_volume
187pub_type
杂志文章abstract::The three-dimensional ultrastructure of the pineal body of the rat is described on the basis of freeze-fractured preparations. The pineal capsule consists of irregular cells with very flat and perforated processes. Through these openings, extremely branched canaliculi, extending to almost every pineal cell, communicat...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00238052
更新日期:1979-09-02 00:00:00
abstract::Removal of the somatic DNA methylation pattern from donor cells and remodeling of embryonic status have been suggested as integral processes for successful nuclear transfer (NT) reprogramming. This study has investigated the effects of 5-azacytidine (5-azaC), a DNA methylation inhibitor, on global methylation changes ...
journal_title:Cell and tissue research
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journal_title:Cell and tissue research
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00219959
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00233959
更新日期:1980-01-01 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00221607
更新日期:1978-10-06 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00223069
更新日期:1977-10-26 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
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journal_title:Cell and tissue research
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00318454
更新日期:1990-02-01 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
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journal_title:Cell and tissue research
pub_type: 杂志文章
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更新日期:1980-01-01 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
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更新日期:2000-09-01 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00217273
更新日期:1982-01-01 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
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更新日期:1986-01-01 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s004410051240
更新日期:1999-02-01 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00223264
更新日期:1975-09-16 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00219848
更新日期:1977-04-29 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
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更新日期:1990-12-01 00:00:00
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journal_title:Cell and tissue research
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更新日期:1992-08-01 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
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更新日期:1976-06-28 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00220316
更新日期:1976-10-13 00:00:00
abstract::We have examined radioautographically the protein synthetic and secretory activity of differentiating odontoblasts and ameloblasts, exposed for 9 h in vitro to various concentrations of colchicine in the presence of 3H-proline. Colchicine impairs the cytodifferentiation of the dental epithelium into ameloblasts and of...
journal_title:Cell and tissue research
pub_type: 杂志文章
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更新日期:1988-06-01 00:00:00
abstract::Tenidap is a structurally novel antirheumatic agent with anti-inflammatory and analgesic properties. Previous studies have shown that tenidap is able to inhibit the production and action of cytokines such as interleukin-1, interleukin-6 (IL-6) and tumour necrosis factor alpha. However, the mechanisms by which tenidap ...
journal_title:Cell and tissue research
pub_type: 杂志文章
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更新日期:1997-05-01 00:00:00
abstract::Following castration, the nucleus of the dark cells of the subcortical portions of the collecting tubules in the rat kidney showed two types of morphological alterations: 1) Decomposition of the nuclear membrane in a circumscribed area. This phenomenon is independent of the sex of the animal and becomes more frequent ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00220204
更新日期:1980-01-01 00:00:00
abstract::A study of the organisation of the locust dorsal ocellus shows that the structure is designed to provide the maximum possible effective aperture. The condenser-like cuticular lens and the dispersal of the rhabdome over a large proportion of the circumferential area of the retinula cells increases the light gathering p...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00234742
更新日期:1979-02-28 00:00:00
abstract::The motility patterns of the reticulorumen evoke mainly mixing of the ingesta. So far unknown, intrinsic neural circuits of the enteric nervous system are involved in the control of these motility patterns. The aim of the study was to characterize neurochemically sheep ruminal myenteric neurones, in particular the neu...
journal_title:Cell and tissue research
pub_type: 杂志文章
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-013-1723-6
更新日期:2014-01-01 00:00:00