Abstract:
:Two different fixative procedures (immersion and perfusion) and four different fixative solutions were used in order to obtain the best preservation of the brush cells of the common bile duct of the rat. The results indicate that only perfusion fixation through the common bile duct is suitable, independent of the fixative solutions and their osmolarity. Numerous brush cells were seen in the proximal and distal regions of the common bile duct. In these locations, they could be implicated in a registration and/or regulation of intraluminal pressure variations.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Luciano L,Castellucci M,Reale Edoi
10.1007/BF00210353subject
Has Abstractpub_date
1981-01-01 00:00:00pages
403-20issue
2eissn
0302-766Xissn
1432-0878journal_volume
218pub_type
杂志文章abstract::Wnts are secreted glycoproteins that play multiple roles in early development, including the differentiation of precursor cells. During this period, gradients of Wnts and other morphogens are formed and regulate the differentiation and migration of neural progenitor cells. Afterwards, Wnt signalling cascades participa...
journal_title:Cell and tissue research
pub_type: 杂志文章,评审
doi:10.1007/s00441-014-1996-4
更新日期:2015-01-01 00:00:00
abstract::The development of the canine proximal colon from the completion of organogenesis through 43 days after birth was studied using light microscopy, immunofluorescence and electron microscopy. During this period the tunica muscularis increased in thickness from 42+/-6 microm in animals midway through the gestation period...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00319136
更新日期:1995-10-01 00:00:00
abstract::The innervation of the anococcygeus muscle of the rat was investigated with regard to the histochemical features of nerve fibers within the muscle and to the location of the postganglionic autonomic neurons which are the source of these fibers. Acetylcholinesterase-positive fibers and catecholaminergic fibers are abun...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00571438
更新日期:1990-01-01 00:00:00
abstract::Besides its function at cholinergic synapses, acetylcholinesterase (AChE) exerts structural functions on neural differentiation, independent of its enzymatic activity. To elucidate such functions, we have previously heterologously expressed AChE in histotypic retinal reaggregates, revealing strong effects on their his...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s004410100444
更新日期:2001-11-01 00:00:00
abstract::Early diplotene oocytes from Necturus maculosus ranging from approximately 0.2 to 0.5 mm in diameter were examined by electron microscopy. In the smallest oocytes of this range, the cytoplasm is largely devoid of membranes, but contains primarily ribosomes and mitochondria. In slightly larger oocytes, smooth-surfaced ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00218087
更新日期:1986-01-01 00:00:00
abstract::To investigate the control of the timing in the epithelio-mesenchymal transformation of the neural crest into a migrating population, neural anlagen (neural tube plus crest) were isolated from 2-day quail embryos by proteases in the presence of CA++ and explanted onto substrates favourable for neural crest cell migrat...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00218011
更新日期:1985-01-01 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
doi:10.1007/s00441-002-0554-7
更新日期:2002-09-01 00:00:00
abstract::It is hard to fathom that one of the most highly differentiated cells in the body, the spermatozoon, spends over half of its developmental life without the capacity for nuclear protein biosynthesis. This is even more incredible when considering that protein synthesis is switched off long before the sperm is mature. As...
journal_title:Cell and tissue research
pub_type: 杂志文章,评审
doi:10.1007/s00441-015-2249-x
更新日期:2016-01-01 00:00:00
abstract::The dorsal root ganglion (DRG) and dorsal horn of the spinal cord are areas through which primary afferent information passes enroute to the brain. Previous studies have reported that, during normal neuronal activity, the regional distribution of a second messenger, diacylglycerol (DG), which is derived from phosphoin...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-006-0219-z
更新日期:2006-10-01 00:00:00
abstract::In the compound eye of the locust, Locusta, the cross-sectional area of the rhabdoms increases at "dusk" by 4.7-fold due to the rapid assembly of new microvillar membrane, and decreases at "dawn" by a corresponding amount as a result of pinocytotic shedding from the microvilli. The rhabdoms at night have more and long...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00214807
更新日期:1982-01-01 00:00:00
abstract::Back-labeling of regenerated electromotor neurons in the teleost Sternarchus albifrons was performed to test the hypothesis that, in regenerated spinal cord, incorrectly located electromotor neurons are eliminated because their axons do not reach the correct target area (electric organ). In each cross section examined...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00217166
更新日期:1985-01-01 00:00:00
abstract::A culture technique for the in vitro growth and differentiation of antennal cells of Mamestra brassicae is described. The morphology of the growing cells is described. At least five morphological cell types can be distinguished in the cultures. Neuronal cells (type A) were characterized morphologically and immunocytoc...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s004410050884
更新日期:1997-08-01 00:00:00
abstract::Morphological changes in the disconnected neuro-intermediate lobe were studied in the lizard, Anolis carolinensis from the 2nd to the 14th post-operative day using a threefold aldehyde fixative (Rodríguez, 1969). Two phases of colour change capacity were exhibited: Phase I started immediately after the transection, la...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00237724
更新日期:1979-06-08 00:00:00
abstract::The thoracic legs of the moth Manduca sexta acquire a new form and develop a new complement of sensory organs and muscles during metamorphosis from larva to adult. Because of our interest in the reorganization of neural circuitry and the acquisition of new behaviors during metamorphosis, we are characterizing sensory ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00318442
更新日期:1990-02-01 00:00:00
abstract::The fine structure of synapses, their distribution and arrangement in the ventral nerve cord of Peripatoides leuckarti (phylum Onychophora) is described. The asymmetric synaptic junctions show a well developed synaptic cleft (300 A) and pre- and subsynaptic electron dense apposition. They frequently show an array of p...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00224940
更新日期:1978-01-31 00:00:00
abstract::The pineal organ of the blind, cave-dwelling fish, Typhlichythyes subterraneous, was examined with both light and electron microscopes. Like the eyes, the pineal in this troglobytic species was found to be regressed. Two cell types, photoreceptor and supportive cells, were described in the pineal epithelium. Although ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00233895
更新日期:1978-12-29 00:00:00
abstract::The epithelial surface of the taste disc on the fungiform papillae of the frog was studied by means of freeze-fracture and conventional electron microscopy. The plasma membrane of the apical process of taste receptor cells was found to exhibit a uniform population of 10-nm intramembrane particles on its fracture face ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00216883
更新日期:1982-01-01 00:00:00
abstract::The fine structure of one of the cellular components of the nucleus recesses lateralis of trout is described. These cells have an enormously developed smooth endoplasmic reticulum which makes their identification easy. The relationship of this cell type with the ventricular cavity, neighbouring cells and the presence ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00206343
更新日期:1982-01-01 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
abstract::Beta-catenin is a multi-functional molecule that is involved in both cell-cell adhesion and signaling. We analyzed changes in beta-catenin gene expression during mouse molar tooth development by in situ hybridization. Prominent up-regulation of the expression of this gene was evident exclusively in the enamel knot at ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-005-0136-6
更新日期:2006-07-01 00:00:00
abstract::In the ovoviviparous fly, Sarcophaga bullata, vitellogenesis in cyclic; a process reflected in ultrastructural changes in the fat body cells and oenocytes. At eclosion the larval fat body has not yet completely disappeared. During vitellogenesis the fat body cells are specialized for intensive protein synthesis showin...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00216728
更新日期:1981-01-01 00:00:00
abstract::A histological examination of 205 fish representing four cyprinid species from a site 2.5 miles north of Wheeling, West Virginia, on the Ohio River revealed large (2--4 micron) cuboidal intranuclear inclusion bodies (NIB's) within neurons in the cranial and spinal ganglia of three species. Because the minnows had been...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00210112
更新日期:1981-01-01 00:00:00
abstract::Induction of HIF-1α by oxygen limitation promotes increased phosphorylation and catalytic depression of mitochondrial pyruvate dehydrogenase (PDH) and an enhanced glycolytic poise in cells. Cobalt chloride and desferrioxamine are widely used as mimics for hypoxia because they increase the levels of HIF-1α. We evaluate...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-012-1517-2
更新日期:2013-01-01 00:00:00
abstract::Apart from the characteristic and progressive motor- and movement-related problems, Parkinson's disease (PD) patients also suffer from several non-motor symptoms, including gastrointestinal dysfunction. The fact that the enteric nervous system (ENS) controls motility and that one of the typical PD hallmarks, α-synucle...
journal_title:Cell and tissue research
pub_type: 杂志文章,评审
doi:10.1007/s00441-018-2856-4
更新日期:2018-07-01 00:00:00
abstract::Two different monoclonal antibodies raised against choline acetyltransferase were used, together with preembedding immunocytochemical techniques, to visualize the possible cholinergic innervation of the supraoptic and paraventricular nuclei of the rat hypothalamus. Light microscopy confirmed the presence of a group of...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00220024
更新日期:1988-10-01 00:00:00
abstract::Agitation of villi evokes reflexes that affect the motility of the guinea-pig small intestine. NK1 receptor endocytosis was used to investigate the possible involvement of tachykinins acting on neuronal NK1 receptors in these reflexes. Segments of guinea-pig ileum were incubated at 37 degrees C in Krebs physiological ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s004410051032
更新日期:1998-04-01 00:00:00
abstract::Notch signaling is evolutionarily conserved from Drosophila to human. It plays critical roles in neural stem cell maintenance and neurogenesis in the embryonic brain as well as in the adult brain. Notch functions greatly depend on careful regulation and cross-talk with other regulatory mechanisms. Deregulation of Notc...
journal_title:Cell and tissue research
pub_type: 杂志文章,评审
doi:10.1007/s00441-017-2641-9
更新日期:2018-01-01 00:00:00
abstract::The antral hormone gastrin is the key regulator of gastric acid secretion, mucosal growth and differentiation. Gastrin is synthesized in the endocrine G-cells in the antroduodenal mucosa. We have now examined the way in which the loss of gastrin alone or gastrin plus cholecystokinin (CCK) affects the antral G-cell. Im...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-005-1110-z
更新日期:2005-07-01 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 effects of progesterone pretreatment on in vivo 3H-estrogen uptake by five anterior pituitary cell types was analyzed by means of a quantitative autoradiographic-immunocytochemical technique. Male and female rats castrated for 14 days show nuclear concentration of label in all five cell types one h after injection...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00236250
更新日期:1981-01-01 00:00:00