Abstract:
:The vascular architecture of the rat testis and spermatic cord was studied by a corrosion cast technique combined with scanning and transmission electron microscopy, and light microscopy. The casts preserve the endothelial impressions of the vessels and enable them to be differentiated into the various vascular components. Frequent arterio-arterial anastomotic arcades and occasional arteriovenous anastomotic channels are seen. A well defined hexagonal pattern of intertubular and peritubular vessels surround the seminiferous tubules. Prominent large endothelial nuclei protrude into the arterial lumina at branching sites, but their functional significance is not known. The outer-most vascular layer of the testis consists of large veins, venules, and capillaries, but lacks any arterial branches; it also contains loosely arranged veno-venous anastomotic networks. We have named this vascular layer the sub-albugineal venous plexus. The testicular artery increases in luminal diameter as it approaches the testis. The periarterial capillary plexus, which lies between the pampiniform plexus and the testicular artery, is drained by two types of venules.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Weerasooriya TR,Yamamoto Tdoi
10.1007/BF00217176subject
Has Abstractpub_date
1985-01-01 00:00:00pages
317-23issue
2eissn
0302-766Xissn
1432-0878journal_volume
241pub_type
杂志文章abstract::In an ultrastructural study on the spermiogenesis of the rainbow trout (Salmo gairdneri R.) four spermatogenetic stages were identified. In young round spermatids, the nuclear chromatin was first heterogeneous (euchromatin and heterochromatin). Subsequently, it became more homogeneous and started to condense in the fo...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00238295
更新日期:1983-01-01 00:00:00
abstract::Transplantation of a small fragment of the ileum beneath the kidney capsule in syngenic mice results in the formation of a cyst lined with proliferating intestinal epithelium. The duration of the cell cycle in the epithelium was determined (using tritiated thymidine and the FLM method) as 14.5 h, as compared with 11.5...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00221125
更新日期:1977-02-02 00:00:00
abstract::Frozen sections of growing terminal follicles of the locust ovary were incubated with an ecdysteroid-specific rabbit antibody and the bound antibody visualised by the use of FITC-labelled goat-anti-rabbit antiserum. A bright fluorescence was seen in the cytoplasm of the follicle cells in terminal follicles with a leng...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00220391
更新日期:1978-11-20 00:00:00
abstract::Using in vitro autoradiography, binding sites of 125I-ANP (atrial natriuretic peptide) were localized in the rat placenta, visceral yolk sac, and decidua at 16, 18, and 20 days of gestation. There was diffuse binding over the labyrinthine region of the placenta and an intense binding over the decidual gland and viscer...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00302744
更新日期:1993-05-01 00:00:00
abstract::Effects of steroids on the accumulation of glycoprotein gonadotropin (GTH) in pituitaries of juvenile trout were investigated by means of scanning cytophotometry applied to immunocytochemical preparations, and with the use of a radioimmunoassay. Effects on other aspects of GTH-cell activity were analyzed by measuring ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00226962
更新日期:1984-01-01 00:00:00
abstract::The opioid peptide dynorphin A (1-17) is the third transmitter identified in the striatonigral projection, the other two being gamma-aminobutyric acid (GABA) and substance P. The ultrastructural features of the dynorphinergic terminals in substantia nigra/pars reticulata were studied using pre-embedding immunocytochem...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00329443
更新日期:1990-07-01 00:00:00
abstract::To further evaluate the role of autonomic ganglia in the regulation of pelvic visceral activity, the neural elements in the major pelvic ganglion of the male rat have been studied with histochemixal and electron microscopic techniques. The principal findings are that the ganglion is composed of cholinergic and adrener...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00231994
更新日期:1975-05-27 00:00:00
abstract::The tyrosine kinase proteins (Trk), encoded by the trk family of proto-oncogenes, mediate, in mammals, the action of neurotrophins, a family of growth factors acting on the development and maintenance of the nervous system. Neurotrophins and their specific receptors, TrkA, TrkB and TrkC, seem to be phylogenetically we...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s004410000342
更新日期:2001-03-01 00:00:00
abstract::Radiofrequency lesions were made in the lateral geniculate nuclei of six squirrel monkeys. The resulting degenerating terminals and their postsynaptic structures in layer IV of area 17 were quantitatively categorized on photomontages covering large areas of neuropil. Two to five days after the lesion, numerous axon te...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00234741
更新日期:1979-02-28 00:00:00
abstract::The chemical composition of intermediate filaments (IF's) in the ependyma of the subcommissural organ (SCO) of the Mongolian gerbil (Meriones unguiculatus) was investigated immunohistochemically in paraffin-embedded tissue. Antibodies against glial fibrillary acidic protein (GFAP), vimentin, neurofilament proteins and...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00218796
更新日期:1989-03-01 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::Chemoreception in marine invertebrates mediates a variety of ecologically important behaviors including defense, reproduction, larval settlement and recruitment, and feeding. The sensory pathways that regulate deposit-feeding activity by polychaetes living in sedimentary habitats are of particular interest because suc...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-008-0660-2
更新日期:2008-09-01 00:00:00
abstract::Type 1 diabetes is an autoimmune disorder characterized by a lack of insulin production by the beta cells of the pancreas. This lack of insulin causes a variety of systemic effects on whole-body metabolism. Poorly managed type 1 diabetes can lead to cardiovascular disease, diabetic neuropathy, and diabetic retinopathy...
journal_title:Cell and tissue research
pub_type: 杂志文章,评审
doi:10.1007/s00441-012-1387-7
更新日期:2012-09-01 00:00:00
abstract::The ultrastructural localisation of acid phosphatases (AcPhs) during the normal daily breakdown of rhabdomere membrane in Dinopis has been examined using beta-glycerophosphate and p-nitrophenyl phosphate as substrates. Results are related to the classification of organelles in the receptors given by Blest, Powell and ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00236082
更新日期:1979-07-17 00:00:00
abstract::By use of the immunofluorescence technique TSH-, LH- and ACTH-cells were localized in the hypophysis of tadpoles of Xenopus laevis. The first signs of the activity of these cells were observed in early stages of the development, i.e., stage 39 for ACTH, and stage 42 for TSH and LH. ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00216218
更新日期:1982-01-01 00:00:00
abstract::The grey level index (= GLI) and the fresh voluem were determined with the image analyser Micro-Videomat for the nucl. n. facialis after axotomy of the left n. facialis. The experiments were performed on 10 rats in different stages of ontogenesis. The GLI is a quantitative parameter which could be quickly obtained and...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00218176
更新日期:1978-07-05 00:00:00
abstract::Neuromuscular terminals of a single motoneuron to four muscles (CPV7a, GM5a, CV2, and CV3) in the stomach of the blue crab Callinectes sapidus showed structural evidence for the exocytotic release of dense-core vesicles exclusively at synapses. The primary evidence was the appearance of dense cores in the synaptic cle...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s004410050897
更新日期:1997-09-01 00:00:00
abstract::Their strategic location between blood and tissue and their constitutive properties allow endothelial cells (EC) to monitor the transport of plasma molecules, by employing bidirectional receptor-mediated and receptor-independent transcytosis and endocytosis, and to regulate vascular tone, cellular cholesterol and lipi...
journal_title:Cell and tissue research
pub_type: 杂志文章,评审
doi:10.1007/s00441-008-0678-5
更新日期:2009-01-01 00:00:00
abstract::The cumulus and membrana granulosa of non-atretic ovarian follicles from primordial up to a stage shortly before ovulation were studied by electron microscopy. The follicular cells of primordial follicles were undifferentiated and rested on a thick basal lamina. In secondary follicles the endoplasmic reticulum had pro...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00220436
更新日期:1979-11-01 00:00:00
abstract::The ultrastructure of adult male rat pinealocytes was studied after orchidectomy and orchidectomy followed by LH-RH administration. Castration causes an increased development of the rough endoplasmic reticulum and the Golgi apparatus as well as an increase in the number of lipid droplets and lysosomes. The changes aft...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00219145
更新日期:1976-04-02 00:00:00
abstract::Marked changes in mice pubic symphysis occur by the end of pregnancy. Tissue remodeling involves a dynamic balance between cell proliferation and programmed cell death as well as changes in the extracellular matrix components. Therefore, it is important to consider both of these cellular behaviors when investigating t...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-007-0463-x
更新日期:2007-10-01 00:00:00
abstract::We used a combined biochemical and histocytochemical approach to study ecto-ATPase in the rat cardiac muscle. The reaction medium employed for histocytochemical detection was optimized in biochemical assays to achieve the highest enzyme activity and lowest inhibition by the capture agent used for visualization of the ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s004419900105
更新日期:1999-12-01 00:00:00
abstract::Transmission electron microscopy was used to study the effects of proteolytic enzymes (collagenase, trypsin, clostripain), the calcium chelator ethyleneglycol-bis-(beta-aminoethyl ether) N,N,N',N'-tetraacetic acid (EGTA), and the calcium ionophore A 23187 on substrate adhesion and fine structure of chondrocytes and fi...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00228443
更新日期:1984-01-01 00:00:00
abstract::Expression of heat-shock protein 47 in intact and fibrotic liver and in hepatic constituent cells was investigated in mice. Immunohistochemical study of intact liver and Western blot analysis of the protein from isolated liver cells revealed that stellate cells and smooth muscle cells of interlobular vessels, but not ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s004410050594
更新日期:1996-05-01 00:00:00
abstract::Spinal cord injury (SCI) is a major cause of paralysis, disability and even death in severe cases. Lithium has neuroprotective effects on SCI, while the underlying mechanisms remain obscure. In the present study, we established a SCI rat model, which subsequently received lithium treatment. Results displayed that lith...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-020-03298-3
更新日期:2021-01-19 00:00:00
abstract::Putative neural stem cells have been identified within the enteric nervous system (ENS) of adult rodents and cultured from human myenteric plexus. We conducted studies to identify neural stem cells or progenitor cells within the submucosa of adult human ENS. Jejunum tissue was removed from adult human subjects undergo...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-011-1130-9
更新日期:2011-05-01 00:00:00
abstract::The lobula descending neuron (LDN) of dipterous insects is a unique nerve cell (one on each side of the brain) that projects directly from the lobula complex of the optic lobes to neuropil in thoracic ganglia. In the supraoesophageal ganglia the LDN has two prominent groups of branches of which at least one is dendrit...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00218365
更新日期:1982-01-01 00:00:00
abstract::Neurosecretory pathways were examined in normal male rats by the use of the immunoperoxidase technique for the localization of neurophysin in Bouin-fixed, deparaffinized sections. Using this technique two projections of extrahypothalamic neuorosecretory fibers can be traced to the sites of origin of the choid plexuses...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00232829
更新日期:1977-03-01 00:00:00
abstract::Growth hormone, prolactin and somatostatin-like immunoreactivities were demonstrated in the brains of larval, young adult (parasitic) and upstream migrant adult sea lampreys, Petromyzon marinus, by means of immunoperoxidase techniques. Growth hormone (GH) and prolactin (PRL) were observed within separate perikarya in ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00218994
更新日期:1986-01-01 00:00:00
abstract::The ability of levamisole (LVS) to correct the effect of thymectomy on splenic T-cell population in Bufo bufo larvae was tested. Using the nonspecific acid alpha-naphthyl acetate esterase (ANAE) technique, the T-lymphocytes displayed a characteristic reddish brown spot (T-pattern). The total number of white cells per ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00204789
更新日期:1982-01-01 00:00:00