Abstract：
:The ultrastructure of the calcium-sensitive (Ca-s) (PAS-positive) cells of the pars intermedia was investigated in eels kept in hypo- and hyperosmotic environments. Although the cells were moderately active in fresh water (FW), they were highly stimulated in deionized water (DW) and displayed an enlarged Golgi apparatus, a distinct rough endoplasmic reticulum, few secretory granules, some microtubules and an extended area of contact with the basal lamina that separates nervous and glandular tissues. Some mitosing cells were seen. A similar picture was observed in eels kept in sea water (SW) for 45 days, returned to FW and subsequently to DW for 21 days. In SW (20 and 33%), and particularly in concentrated SW (50, 60 and 63%), the Ca-s cells were inactive. Their granules were significantly smaller than in eels kept in FW, and the area of contact with the basal lamina was greatly reduced. However, signs of granule-release were seen in eels adapted to 50 and 60% SW. Nerve fibers rarely contacted the Ca-s cells and did not synapse with them. The ultrastructural data support the hypothesis that the Ca-s cells of Anguilla, like those of Carassius, are involved in ionic regulation. MSH cells were not greatly affected by the present experiments.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Olivereau M,Chambolle P,Dubourg Pdoi
10.1007/BF00210015subject
Has Abstractpub_date
1981-01-01 00:00:00pages
9-26issue
1eissn
0302-766Xissn
1432-0878journal_volume
219pub_type
杂志文章abstract：:In this study, we focus on the specific contribution of β integrin-like protein to adhesion-mediated events in molluscan larval cells in culture that could not have been investigated within the whole animal. An analysis of disturbances to cell-substratum adhesion, caused by the integrin receptor inhibiting Arg-Gly-Asp...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-015-2122-y
更新日期：2015-08-01 00:00:00
abstract：:The present communication describes an investigation of stimulation and inhibition of delta 5-3 beta-hydroxysteroid dehydrogenase in interrenal glands of tadpoles of Rana catesbeiana. Frozen sections of interrenal glands, together with kidneys, were prepared histochemically for assay of delta 5-3 beta-HSD activity. Co...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00218950
更新日期：1987-12-01 00:00:00
abstract：:Modifications of hepatocyte cell surface were determined after single i.v. injection to rats of Pb(NO(3))(2) (known to induce liver hyperplasia followed by apoptosis) or GdCl(3) (known to induce proliferation of parenchymal cells and Kupffer cell depletion) or administration of GdCl(3) 24 h before Pb(NO(3))(2) injecti...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-003-0708-2
更新日期：2003-04-01 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：:VIP-containing neurons were localized in lungs from dogs, cat, and human subjects by means of the indirect immunofluorescence technique. Nerve fibers and terminals were observed in the smooth muscle layer and glands of airways, and within the walls of pulmonary and bronchial vessels, especially at the medial-adventiti...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00210505
更新日期：1981-01-01 00:00:00
abstract：:The distribution of gap junctions (nexuses) in various parts of the small and large intestines of the guinea-pig was studied using the freeze-fracture technique and in thin sections. The percentage area of smooth muscle cell surface occupied by gap junctions varies from 0.50% in the circular muscle of the duodenum to ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00209987
更新日期：1981-01-01 00:00:00
abstract：:Mole rat bone marrow cells and peritoneal eosinophils are used to study granule morphological maturation by quantitative microscopy. The bulk eosinophil granule content is pre-stored in unique granular structures known as crystalloid or secondary granules. Mole rat eosinophil granules exhibit the basic structure of an...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-015-2189-5
更新日期：2015-10-01 00:00:00
abstract：:An antiserum against conjugated histamine and two oligonucleotide probes that detect the mRNA encoding L-histidine decarboxylase (HDC) involved in histamine synthesis were used to study the appearance of histamine and its location in the kidneys of fetal, newborn and young postnatal rats and in the kidneys of pregnant...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00302960
更新日期：1992-02-01 00:00:00
abstract：:Nucleoside di-phosphate kinase enzyme (NDPK) isoforms, encoded by the nm23 family of genes, may be involved in various cellular differentiation and proliferation processes. We have therefore analyzed the expression of nm23-M1, -M2, -M3, and -M4 during embryonic mouse development. In situ hybridization data has reveale...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-005-0036-9
更新日期：2005-12-01 00:00:00
abstract：:The reduced-folate carrier (Rfc-1), previously also called methotrexate carrier-1 (MTX-1), was recently identified as accounting for approximately 30% of the methotrexate (Mtx) uptake into rat kidney slices. The localization of the carrier and its contribution to secretory or reabsorptive flux of the drug was therefor...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-005-1092-x
更新日期：2005-06-01 00:00:00
abstract：:The LIM homeodomain transcription factor Lmx1a shows a dynamic expression in the developing mouse ear that stabilizes in the non-sensory epithelium. Previous work showed that Lmx1a functional null mutants have an additional sensory hair cell patch in the posterior wall of a cochlear duct and have a mix of vestibular a...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-019-03163-y
更新日期：2020-06-01 00:00:00
abstract：:M cells in Peyer's patch epithelium conduct transepithelial transport of luminal antigens to cells of the mucosal immune system. To determine the distribution of specific lectin-binding sites on luminal membranes of living M cells and to follow the transport route of membrane-bound molecules, lectin-ferritin conjugate...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00215747
更新日期：1987-03-01 00:00:00
abstract：:The vacuoles occurring in rat hepatocytes after intraportal injection of retinol (33 or 67 micrograms) were examined immunohistochemically using respective antibodies against rat albumin, human retinol-binding protein, human ceruloplasmin, human alpha 1-antitrypsin, human transferrin, and human prealbumin as represent...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00261829
更新日期：1989-08-01 00:00:00
abstract：:It has long been disputed whether mammalian enterochromaffin (EC-) cells contain a peptide in addition to serotonin. Previous immunohistochemical studies have provided evidence for the presence of enkephalins in EC-cells. These findings, however, are equivocal. Therefore, the problem of opioid peptides in EC-cells has...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00221752
更新日期：1988-07-01 00:00:00
abstract：:The excretory system of Macrobiotus richtersi consists of one dorsal and two lateral components and shows a high degree of structural complexity. In each of these a tricellular external lobe and a column can be distinguished, the two parts being connected distally. The surface of the lobe cells is increased by deep ba...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00239339
更新日期：1980-01-01 00:00:00
abstract：:Intracerebroventricular (ICV) injection of melanin-concentrating hormone (MCH) influences feeding behavior in the goldfish and exerts an anorexigenic action in goldfish brain, unlike its orexigenic action in mammals. Despite a growing body of knowledge concerning MCH function in mammals, the role of MCH in appetite ha...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-006-0347-5
更新日期：2007-05-01 00:00:00
abstract：:A somatostatin-like substance is demonstrated by light microscopic immunohistochemistry (PAP-method) in perikarya and cell processes of the retina of adult and infant rats. These perikarya are identified according to their size, arrangement and distribution. Each of the first two neuronal orders (receptors, bipolar ce...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00235169
更新日期：1979-01-01 00:00:00
abstract：:We have developed a primary cell culture system of antennal mechanoreceptor neurons from early-stage pupal sphinx moth Manduca sexta. Dissociated neurons from the moth antennae differentiated, grew and survived for several weeks in a conditioned culture medium. Bipolar neurons with soma diameters of 10-25 microns from...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410051358
更新日期：1999-08-01 00:00:00
abstract：:The fine structure of the horny teeth of the lamprey, Entosphenus japonicus, was examined by light- and electron-microscopy. Most of the horny teeth consisted of two horny and two nonhorny layers. The primary horny layer was well keratinized, and the cells were closely packed and intensely interdigitated, being joined...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00215769
更新日期：1983-01-01 00:00:00
abstract：:Olfactory marker protein (OMP) was first described as a protein expressed in olfactory receptor neurons (ORNs) in the nasal cavity. In particular, OMP, a small cytoplasmic protein, marks mature ORNs and is also expressed in the neurons of other nasal chemosensory systems: the vomeronasal organ, the septal organ of Mas...
journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s00441-020-03349-9
更新日期：2021-01-15 00:00:00
abstract：:Seasonal changes have been detected in the ultrastructure of brown adipose tissue (BAT) of the common shrew, Sorex araneus (a true nonhibernator) living under natural conditions and collected at the time when the most representative growth phase of the animal for the given season could be expected. In summer and autum...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00233501
更新日期：1981-01-01 00:00:00
abstract：:The distribution of endocrine cells in the gastrointestinal tract of the house musk shrew, Suncus murinus (Family Soricidae, Order Insectivora) was studied immunohistochemically. The hormones investigated were gastrin, cholecystokinin (CCK), somatostatin, secretin, glucagon, gastric inhibitory polypeptide (GIP), motil...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00239456
更新日期：1989-11-01 00:00:00
abstract：:Apoptotic and inflammatory processes occur in human arteriosclerotic lesions. We examined the hypothesis whether both processes are possibly associated by studying the colocalization of corresponding markers. In 11 human arteriosclerotic carotid arteries, proapoptotic markers (CPP32 (caspase-3), poly(ADP-ribose) polym...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-005-0024-0
更新日期：2005-12-01 00:00:00
abstract：:The occurrence and distribution of peptidergic nerves in the guinea pig uterus was studied by means of immunocytochemistry using numerous neuropeptide anti-sera. Neuropeptide Y (NPY)-immunoreactive (IR) nerves were the most abundant, whereas substance P (SP)-, calcitonin gene-related peptide (CGRP)-, and neurokinin A ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00226501
更新日期：1988-01-01 00:00:00
abstract：:The young of the aquatic Australian frog, Rheobatrachus silus (Leptodactylidae) develop from eggs to juvenile frogs in the mother's stomach. During brooding the stomach expands greatly and becomes very thin walled. Transmission electron microscopy showed that the distension of the stomach was accompanied by a severe d...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00222194
更新日期：1983-01-01 00:00:00
abstract：:This study provides information on the rates of DNA synthesis, sites of DNA synthesis, and DNA content of the avian salt gland during the osmotic stressing (plasma membrane synthesis) and destressing (plasma membrane turnover) cycle, in an effort to better understand the relationship of cell turnover to the initial ev...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00214782
更新日期：1982-01-01 00:00:00
abstract：:The distribution and ultrastructure of the mitochondria-rich (MR) cells in the gills of larval (ammocoetes) and adult lampreys (Petromyzon marinus and Geotria australis) have been studied. One type of MR cell, which is found only in ammocoetes, occurs in groups on and between gill lamellae. Freeze-fracture replicas sh...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410051003
更新日期：1998-02-01 00:00:00
abstract：:Quantitative studies on the population of the gonadotropic cells in the pituitary of adult male rats were performed after trypsic dissociation of the pituitary glands and immunoenzymatic staining with anti-beta-LH or anti-beta-FSH antisera. Number, area and extinction of labelled cells were measured by use of an image...
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
abstract：:The suprachiasmatic nucleus (SCN) contains a biological clock that generates timing signals that drive daily rhythms in behaviors and homeostatic functions. In addition to this pacemaker function, the SCN gates its own sensitivity to incoming signals, which permits appropriate temporal adjustment to achieve synchrony ...
journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s00441-002-0576-1
更新日期：2002-07-01 00:00:00
abstract：:The prothoracicotropic hormone (PTTH), which stimulates ecdysteroid synthesis in the prothoracic glands, is produced, in the dorso-lateral protocerebrum of Manduca sexta, by paired peptidergic neurons, the lateral neurosecretory cell group III (L-NSC III). Our study revealed ultrastructural features of L-NSC III, iden...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00303082
更新日期：1994-07-01 00:00:00
