Abstract：
:The phase of primitive erythropoiesis in the feline yolk sac lasts from the 14th to the 20th day after malting. The globular nucleated primitive erythroblasts are formed extravascularly to some extent, but they can be clearly distinguished from the endoderm. They do not undergo a denucleation and are still present in the circulating blood on the 45th day. Aging primitive erythroblasts are characterized by a loss of polysomes, by the appearance of long intracytoplasmic electron-lucent channels, and by a nuclear pyknosis which can turn into a karyolysis. Definitive erythropoiesis begins around the 17th day but, even by the 19th day, it is not particularly prominent. It ends around the 45th day. It is almost exclusively intravascular. The distinction of immature primitive erythroblasts from erythroblasts of the definitive series is difficult, because it is based upon only slight differences in the heterochromatinization, in the nuclear-cytoplasmic ratio, and in the organelle content of the cells. In the definitive series, the nuclear divisions follows the law of the rhythmical halving of the nuclear volume. The cells exhibit more clearly identifiable maturation stages here, and the 'checkerboard nucleus' is more distinct. The vascular endothelium is largely attenuated and moderately fenestrated; it lacks a distinct basement membrane. Organelle-rich adventitial cells are found in close apposition.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Tiedemann Kdoi
10.1007/BF00219993subject
Has Abstractpub_date
1977-09-14 00:00:00pages
71-89issue
1eissn
0302-766Xissn
1432-0878journal_volume
183pub_type
杂志文章abstract：:The ultrastructure of the contractile apparatus of the rat soleus muscle during the course of denervation atrophy was investigated. It was found that the ratio of thin the thick filaments increased in myofibrils of atrophying muscle fibers. Elevation of the ratio was observed as early as the second day after denervati...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00216767
更新日期：1981-01-01 00:00:00
abstract：:Normal development, function and repair of the sensory epithelia in the inner ear are all dependent on gap junctional intercellular communication. Mutations in the connexin genes GJB2 and GJB6 (encoding CX26 and CX30) result in syndromic and non-syndromic deafness via various mechanisms. Clinical vestibular defects, h...
journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s00441-014-2029-z
更新日期：2015-06-01 00:00:00
abstract：:A multilamellate body (MLB), bearing close resemblance to an array of annulate lamellae, has been observed in several adenohypophysial cell types of the teleost, Hemihaplochromis philander. In longitudinal section, each MLB comprises a ladder-like row of 12-50 sausage-shaped profiles, termed lamellae. A few lamellae i...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00221372
更新日期：1976-10-06 00:00:00
abstract：:The system of lateral-line organs in urodeles was examined by the use of various light- and electron-microscopical techniques. The results show that, in addition to the well-known mechanoreceptive neuromast organs, a second type of receptor can be identified. This second type of organ was presumably seen by earlier wo...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00207693
更新日期：1983-01-01 00:00:00
abstract：:Morphogenesis of the arcuate nucleus of the rat from the 15th fetal day to the 6th postnatal day was investigated light and electron microscopically. The arcuate neurons exhibit a gradual development after the 15th fetal day. All cytoplasmic constituents are present in these nerve cells already during the last days of...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00236893
更新日期：1979-08-03 00:00:00
abstract：:This study aimed to characterize porcine Achilles tendon (PAT) in terms of its structural components, vascularity, and resident tendon cells. We found that PAT is composed of a paratenon sheath, a core of fascicles, and an endotenon/interfascicular matrix (IFM) that encases the fascicle bundles. We analyzed each of th...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-020-03379-3
更新日期：2021-01-26 00:00:00
abstract：:The ultrastructural distribution of fibronectin immunoreactivity was investigated in the chicken embryo during late gastrulation. Sites of binding of anti-fibronectin antibodies were ascribed to the basal lamina and associated structures, and to the cell surface. The fibronectin-rich basal lamina was resolved into a l...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00217185
更新日期：1985-01-01 00:00:00
abstract：:The distribution of serotonin-immunoreactive cells in the lung of 4 species of reptiles was investigated. Serotonin-containing cells were found forming groups in the interconnecting septa in all 4 species studied, and also as solitary cells in Testudo graeca and Mauremys caspica. Serotonin-containing cells were also l...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00216504
更新日期：1987-06-01 00:00:00
abstract：:The prolactin-producing cells are the first hormone-producing cells of the pars distalis to be differentiated within Ambystoma gracile. They first appear when the larvae attain a length of approximately 3.0 cm snout to vent length (SVL). Thyrotropes are observed as the next chromophilic cells to appear, and they occur...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00223121
更新日期：1978-05-18 00:00:00
abstract：:PC12 pheochromocytoma cells treated with nerve growth factor (NGF) in combination with high concentrations of the activators of adenylate cyclase, forskolin or cholera toxin, become more neuron-like in size than cells treated with NGF or with activators of adenylate cyclase alone. Cells treated simultaneously with NGF...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00215430
更新日期：1987-07-01 00:00:00
abstract：:The distribution of Mg++-ATPase in osteoclasts along the endosteal surface of the chick tibia was investigated by neutral and alkaline pH cytochemical methods at the electron-microscopic level. Reaction product was observed in mitochondria, cytoplasmic vesicles, and ruffled-border membrane. Levamisole, ouabain, and va...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00218550
更新日期：1986-01-01 00:00:00
abstract：:This is the first detailed report about the collar enamel of the teeth of Polypterus senegalus. We have examined the fine structure of the collar enamel and enamel organ of Polypterus during amelogenesis by light and transmission electron microscopy. An immunohistochemical analysis with an antibody against bovine amel...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-011-1305-4
更新日期：2012-02-01 00:00:00
abstract：:In the atherosclerotic plaque, smooth muscle cells (SMC) acquire an inflammatory phenotype. Resistin and fractalkine (CX3CL1) are found in human atheroma and not in normal arteries. CX3CL1 and CX3CR1 are predominately associated with SMC. We have questioned whether resistin has a role in the expression of CX3CL1 and C...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-012-1510-9
更新日期：2013-01-01 00:00:00
abstract：:Kidneys of 2 to 10 day-old rats of Wistar and Sprague-Dawley strains were fixed with glutaraldehyde by retrograde vascular perfusion and then prepared for observation in TEM and SEM. In addition methacrylate casts of differentiating glomerular capillaries were examined by SEM. Although the glomerular vascular pattern ...
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
abstract：:Colitis is associated with alterations in electrolyte and water transport. These changes give rise to some of the symptoms experienced by patients with colitis. Alterations in fluid flux may also contribute to increased susceptibility to mucosal injury. Recently, endogenous water channel proteins (aquaporins; AQPs), h...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-004-0932-4
更新日期：2004-11-01 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 endoneurial collagen sheath around teased nerve fibres following crush injury was studied by scanning electron microscopy and compared with uninjured sciatic nerve fibres and with fibres from the dystonic mutant mouse. Following crush injury the endoneurial collagen became more abundant than seen in untreated nerv...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00210469
更新日期：1981-01-01 00:00:00
abstract：:The pars tuberalis of the hypophysis of the Djungarian hamster, Phodopus sungorus, was investigated with regard to secretory activity by applying the tannic acid-Ringer perfusion technique. Two groups were maintained under long photoperiods (16 h light: 8 h dark) or short photoperiods (8 h light: 16 h dark), respectiv...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00312830
更新日期：1993-08-01 00:00:00
abstract：:With an indirect immunofluorescence technique and an antiserum raised against synthetic LHRH, immunofluorescent granules were observed in fine radially oriented fibres in the palisade layer of the zoma externa in both the anterior and the posterior divisions of the median eminence in the greenfinch. There was no speci...
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
abstract：:The distribution and development of growth-associated protein 43 (GAP-43)-like immunoreactivity (-LI) in the rat circumvallate papilla (CVP) were compared to those of protein gene product 9.5 (PGP 9.5)-LI. In the adult, thick GAP-43-like immunoreactive (-IR) structures gathered densely in the subgemmal region. Some of...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410051142
更新日期：1998-09-01 00:00:00
abstract：:In the central nervous system of the male domestic flow, metenkephalin (ENK) immunoreactive perikarya and fiber tracts as well as extensive but sharply delimited fiber networks were visualized by means of the PAP technique. The most striking results were: (1) The demonstration of an association of ENK-containing struc...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00236920
更新日期：1980-01-01 00:00:00
abstract：:Normal articular cartilages from the weight-bearing areas of the femoral condyles of the knee joints of 11 patients (3-20 years old) and of 35 Schwarzkopf sheep (3 months to 2 years old) were studied using the electron microscope. The study has shown that the matrix of normal articular cartilage is not only composed o...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00216487
更新日期：1987-06-01 00:00:00
abstract：:Neurons projecting from the brain to the pineal gland via the pineal stalk were investigated in the golden hamster with the use of the retrograde horseradish-peroxidase tracing method both in vivo and in vitro. Labelled perikarya were observed in the medial and lateral habenular nuclei as well as in the posterior comm...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00216557
更新日期：1987-01-01 00:00:00
abstract：:The application of autologous dermal fibroblasts has been shown to improve burn wound healing. However, a major hurdle is the availability of sufficient healthy skin as a cell source. We investigated fetal dermal cells as an alternative source for cell-based therapy for skin regeneration. Human (hFF), porcine fetal (p...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-015-2293-6
更新日期：2016-04-01 00:00:00
abstract：:Periodontal ligament (PDL) stem cell properties are critical in the periodontal tissue regeneration for periodontitis. Previously, we have demonstrated that cigarette smoking attenuates PDL-derived stem cell (PDLSC) regenerative properties. Here, we report the findings on the regenerative properties of human PDLSCs wi...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-020-03176-y
更新日期：2020-07-01 00:00:00
abstract：:The interendothelial junctions of all segments of the renal vasculature have been studied in eight species using the freeze-fracture technique. Three types of junctions have been found. Combinations of tight and gap junction elements are characteristic for interlobular arteries and proximal afferent arterioles. Contin...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00217224
更新日期：1984-01-01 00:00:00
abstract：:Striated rootlets in ciliated cells are conical banded structures composed of longitudinally aligned filaments. The formation of striated rootlets during ciliognesis in the human oviduct epithelium was studied by electron microscopy. Primitive rootlets appeared at the proximal side of basal bodies before or at the sam...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410050905
更新日期：1997-10-01 00:00:00
abstract：:Previous immunochemical investigations have demonstrated various opioid peptides in the pancreas. However, controversies exist related to the cellular localization of these peptides in the endocrine pancreas. Therefore, the guinea pig endocrine pancreas was immunohistochemically investigated for the presence of opioid...
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
abstract：:The ultrastructure of the optic and trigeminal nerves of the rat, cryofixed by use of a liquid nitrogen-propane jet, was examined, paying special attention to the myelin sheath and the cytoskeleton of the axoplasm. The cytoskeleton of the axoplasm is formed by a meshwork of neurofilaments and microtubules connected bo...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00214541
更新日期：1985-01-01 00:00:00
abstract：:The bursa of Fabricius of the chicken is known to be both a primary lymphoid organ and a secondary lymphoid tissue. Bursal follicles are equipped with antigen-trapping follicle-associated epithelium. However, bioactive antigens such as protein and bacteria have not been detected in the bursal parenchyma. By immunopero...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-013-1701-z
更新日期：2013-12-01 00:00:00
