Abstract：
:Pimozide, a specific blocker of dopaminergic receptors, was injected for 4 or 9 days in freshwater (FW) eels or eels acclimated to sea water (SW) for 10 or 30 days. The daily dose was 100 or 200 microgram/100 g. Melanophore index values increase in FW and in 1 month-SW injected eels. All the treated fish react by a total or subtotal degranulation of the lead-hematoxylin positive cells in the pars intermedia. These cells were previously identified as alpha-MSH-secreting cells. The MSH cell nuclear area is significantly increased, nucleoli are larger and the endoplasmic reticulum more developed. The intensity of the response is similar in FW and SW eels, but it does not increase with the higher dose. The rapid release of pituitary alpha-MSH is also visualized by immunofluorescence and immunoenzymologic techniques. No effect on the second cell type of the pars intermedia (PAS-positive cell) is detected. The amount of neurosecretory material is often reduced in the neurohypophysis. These results suggest that the hypothalamic inhibitory control of MSH release and synthesis is mediated through dopaminergic fibers in the eel, but other factors cannot be ignored in this regulation.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Olivereau Mdoi
10.1007/BF00209272subject
Has Abstractpub_date
1978-05-29 00:00:00pages
231-9issue
2eissn
0302-766Xissn
1432-0878journal_volume
189pub_type
杂志文章abstract：:The bilaterally paired cercal nerves of Archimantis brunneriana Sauss. leave the terminal ganglion posteriorly and then turn dorsally through muscles at the rear of the abdomen to enter the cerci, where each splits into two branches; successive branchings occur further distally in each cercus. In the distal nerve bran...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00217267
更新日期：1982-01-01 00:00:00
abstract：:The capsule of the muscle spindle from the anterior and posterior latissimus dorsi muscles of the adult domestic chicken has been studied with the electron microscope. As in other species, two distinct portions of the spindle capsule are distinguished: an outer capsule and an inner capsule. The outer capsule is struct...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00220126
更新日期：1976-02-25 00:00:00
abstract：:Nematocysts are characteristic organelles of the phylum Cnidaria. The free-living Platyhelminth Microstomum lineare preys on Hydra oligactis and sequesters nematocysts. All nematocyst types become phagocytosed without adherent cytoplasm by intestinal cnidophagocytes. Desmoneme and isorhiza nematocysts disappear within...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-019-03149-w
更新日期：2020-01-01 00:00:00
abstract：:The reaction of nerve endings in the median eminence of the rat to zinc iodide-osmium tetroxide (ZIO) staining was examined electron microscopically under normal and experimental conditions. The experimental condition of catecholamine exhaustion in the nerve endings was induced by the administration of H44/68 and rese...
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：:The ultrastructure of corpora lutea obtained during the preimplantation implantation and early post-implantation periods has been studied in 20 western spotted skunks. Fine structure of granulosa lutein cells was correlated with progesterone levels. The corpus luteum of the prolonged (7 month) preimplantaion period co...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00218972
更新日期：1975-12-02 00:00:00
abstract：:DNA distribution in mouse, rabbit and bull spermatids was analyzed by electron microscopy, after using a Feulgen-like HCl-osmium ammine procedure, and after immunocytochemistry with anti-DNA antibodies. In addition, nucleic acids were visualized with the intercalating dye ethidium bromide and phosphotungstic acid. The...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00340875
更新日期：1991-09-01 00:00:00
abstract：:The molecular cloning of a cDNA fragment synthesised from rat duodenal mRNA coding for cholecalcin (calbindin), a 9000 Mr vitamin D-induced calcium-binding protein (CaBP), has been previously described. DNA/RNA hybridisation assays have been used to examine CaBP mRNA production in the uterine horns and duodena of preg...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00216546
更新日期：1987-01-01 00:00:00
abstract：:The presence of melatonin is demonstrated in the pineal gland, the retina and the Harderian gland in some mammalian and non-mammalian vertebrates, using a specific fluorescence labelled antibody technique. Four different potent antibodies against melatonin have been used and compared. In the pineal gland of hamsters, ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00233830
更新日期：1981-01-01 00:00:00
abstract：:Somatostatin-like immunoreactivity was localized in nerve cell bodies and nerve terminals in the cat coeliac ganglion. Two types of somatostatin-immunoreactive cell bodies were revealed, the first being large (diameter 35 microns), numerous and weakly labelled, whereas the second was considerably smaller (diameter 10....
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00327290
更新日期：1991-03-01 00:00:00
abstract：:During metamorphosis, the frog intestine goes through a dramatic shortening with extensive apoptosis and regeneration in the epithelial layer and connective tissue. Our aim was to study changes in the enteric nervous system represented by one inhibitory (vasoactive intestinal polypeptide; VIP) and one excitatory (subs...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-004-0856-z
更新日期：2004-04-01 00:00:00
abstract：:The pancreatic endocrine tissue of Fugu rubripes rubripes consists of numerous round principal islets (Brockmann bodies) of various sizes scattered around the gall-bladder. The endocrine cells are divided into A-, B-, D-, and Ff-cells. Each cell type was identified by comparing thick and thin sections in both light an...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00222157
更新日期：1976-10-29 00:00:00
abstract：:Ex-fissiparous planarians produce infertile cocoons or, in very rare cases, cocoons with very low fertility. Here, we describe the features of programmed cell death (PCD) occurring in the hyperplasic ovary of the ex-fissiparous freshwater planarian Dugesia arabica that may explain this infertility. Based on TEM result...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-014-1971-0
更新日期：2014-11-01 00:00:00
abstract：:Ornithine decarboxylase (ODC) activity was measured in homogenates of neonatal rabbit ovaries from the day of birth to day 22, an interval that corresponds to the progressing stages of the meiotic prophase from oogonia to diplotene and follicle formation. The ODC-activity was high on days 1 and 3 when most germ cells ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00218114
更新日期：1983-01-01 00:00:00
abstract：:Whether an axon will regenerate after it is cut depends on the balance between the intrinisic ability of the axon to regrow and the permissiveness of the environment surrounding it. The permissiveness of the environment is determined by the glial cells at the site of injury, and in the CNS both oligodendrocytes and as...
journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s004410050943
更新日期：1997-11-01 00:00:00
abstract：:The surface coat of the electrocyte of the main electric organ of Electrophorus electricus was studied using cytochemical methods (periodic acid-silver methanamine, periodic acid-chromic acid-silver methenamine, periodic acid-thiosemicarbazide-silver proteinate, Concanavalin A - horseradish peroxidase, ruthenium red, ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00226622
更新日期：1977-09-26 00:00:00
abstract：:The use of antibodies to alpha-(17--39) ACTH, beta-LPH, and alpha- and beta-endorphins has enabled the detection of immunoreactive cells as early as the eight week of fetal life. Immunoreactive cells are located in the anterior and intermediate lobes of the pituitary gland in normal human fetuses. The same cells react...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00225339
更新日期：1978-10-30 00:00:00
abstract：:This is the first report on the ultrastructural pattern of distribution of nicotinamide adenine dinucleotide phosphate diaphorase (NADPH-d) in endothelial cells, using the rabbit aorta, and its colocalization with the neuronal isoform (type I) of nitric oxide synthase. About 30% of the endothelial cells showed a posit...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00314551
更新日期：1993-12-01 00:00:00
abstract：:An antibody to the 96 kD alpha-subunit of the Na+, K+-ATPase from Bufo marinus has been used in immunostaining rat kidney and salivary glands. Intense staining was observed on basolateral membranes of distal tubules of the kidney and striated ducts of the three major salivary glands. Less intense staining was seen on ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00223153
更新日期：1989-10-01 00:00:00
abstract：:To obtain more information concerning the origin of dendritic reticulum cells, the development of germinal centers in the spleens of rabbits was investigated by conventional light microscopy, enzyme histochemistry, and electron microscopy. Washed sheep erythrocytes were used as antigen. Splenic tissue was examined on ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00237632
更新日期：1980-01-01 00:00:00
abstract：:Calcitonin gene-related peptide (CGRP) was found extensively in the small intestine of both non-mammalian and mammalian vertebrates using radioimmunoassay and immunocytochemistry. By radioimmunoassay, the levels of CGRP in rats, mice, chickens, bullfrogs and rainbow trout were found to range from 91.5 to 419.1 ng/g ti...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00223142
更新日期：1989-10-01 00:00:00
abstract：:The acrosome is a special organelle that develops from the Golgi apparatus and the endolysosomal compartment in the spermatids. Centromere protein E (CENP-E) is an essential kinesin motor in chromosome congression and alignment. This study is aimed at investigating the roles and mechanisms of kinesin-7 CENP-E in the f...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-020-03341-3
更新日期：2020-11-25 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
doi：10.1007/BF00216651
更新日期：1988-06-01 00:00:00
abstract：:The larval stage of Polypodium hydriforme is planuliform and parasitic inside the growing oocytes of acipenserid fishes. The larva has inverted germ layers and a special envelope, the trophamnion, surrounding it within the host oocyte. The trophamnion is a giant unicellular provisory structure derived from the second ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00237977
更新日期：1980-01-01 00:00:00
abstract：:The fine structure of the main excretory duct epithelium (MEDE) of female mouse submandibular gland was investigated by scanning and transmission electron microscopy and the results compared with the previously established structure of male mouse MEDE. A comparative analysis of the subepithelial capillaries of both se...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00300213
更新日期：1994-09-01 00:00:00
abstract：:Mast cells (MCs) and airway nerves play an important role in allergic asthma. However, little is known about the MCs and their interaction with airway nerves during allergic airway inflammation. This study aims to investigate the distribution and proliferation of MC populations in different lung compartments, along wi...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-017-2597-9
更新日期：2017-08-01 00:00:00
abstract：:Thyroid hormone (TH) plays an important role in regulating ovarian development. However, the mechanism involved remains unclear. Evidence suggests that glucose is essential for ovarian development, and its uptake is mediated by several glucose transporter proteins (Glut). We have investigated the effects of TH on Glut...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-016-2453-3
更新日期：2016-11-01 00:00:00
abstract：:Elastic cartilage-derived cells cultured two-dimensionally with FGF2 and corticosteroid produce gel-type masses that become mature cartilage when injected into a subcutaneous pocket. This unique method has previously been clinically applied for treatments of nasal augmentation. However, the components of the gel-type ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-007-0438-y
更新日期：2007-09-01 00:00:00
abstract：:The freshwater polyp Hydra magnipapillata has a primitive nervous system that produces at least three distinct classes of neuropeptides: various peptides having the C-terminal sequence Arg-Phe-NH2 (the Hydra-RFamide family), Leu-Trp-NH2 (the Hydra-LWamide family), and a single peptide having the C-terminal sequence Ly...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410000240
更新日期：2000-08-01 00:00:00
abstract：:The fine structure of boar Leydig cells is re-examined in samples post-fixed with OSO4-K4Fe(CN)6, an elective method to preserve the ultrastructural detail of the endocrine testis. The cells show a pleomorphic arrangement of the smooth endoplasmic reticulum. Large "vesicle-like" dilatations are interspersed in the tub...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00211483
更新日期：1983-01-01 00:00:00
abstract：:Loss of serotonergic and dopaminergic neurons may have serious implications for normal brain function. Drosophila models of neurodegenerative diseases utilize the short life-span and simple anatomy of the fly to characterize the molecular and genetic processes characteristic of each dysfunctional state. In fly embryon...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-004-0940-4
更新日期：2004-09-01 00:00:00
