Abstract：
:Rat ovarian perifollicular contractile tissue was examined at specified intervals prior to ovulation to determine the type, relative number, and length of cellular junctions. Rat ovaries were taken for electron-microscopic observation at 1500 h on the afternoon of proestrus (proestrus 0-h group), at 2000 h (proestrus 5 h group), at 0100 h (proestrus 10-h group) and at 1600 h on the afternoon of diestrus I. Close junctions, intermediate junctions, and gap junctions were counted and measured. Then number of gap junctions/1,000 micrometers of membrane and the number of intermediate junctions/1,000 micrometers of membrane was significantly higher in the proestrus 10 h groups as compared to the other groups. There was no difference in the number of close junctions during the periods studied. Also the length of all junctions was similar in all groups. These morphological findings are discussed in the context of contractile role for perifollicular tissue in the ovulatory process.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Capps ML,Lawrence IE Jr,Burden HWdoi
10.1007/BF00210023subject
Has Abstractpub_date
1981-01-01 00:00:00pages
133-41issue
1eissn
0302-766Xissn
1432-0878journal_volume
219pub_type
杂志文章abstract：:Pituitary adenylate cyclase-activating polypeptide (PACAP) is the latest member of the vasoactive intestinal polypeptide (VIP) family of neuropeptides present in nerve fibres in many peripheral organs. Using double immunohistochemistry, with VIP as a marker for intrinsic innervation and calcitonin-gene related peptide...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004419900124
更新日期：2000-01-01 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 diabetes (db/db) mutation (leptin-receptor defect) induces a hyperglycemic-hyperinsulinemic endometabolic environment that promotes hypercytolipidemic ovarian involution in C57BL/KsJ mice, resulting in reproductive sterility and eventual organoatrophy. The effectiveness of low-dose (1.0 microg/sc/3.5 day intervals...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-004-0967-6
更新日期：2004-11-01 00:00:00
abstract：:Polysaccharides in the vacuolar system of an established line of monkey kidney epithelial cells, were investigated by high resolution radioautography following incorporation of 3H-fucose and by the periodic acid-thiosemicarbazide-silver proteinate staining method. Significant amounts of glycogen and glycoproteins were...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00225345
更新日期：1978-10-30 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：:The ultrastructure of the dermal papulae of a starfish (Asterias rubens) is consistent with a respiratory function. The present study has shown no regions specialized for excretory mechanisms. The papulae consist of an outer ectodermal epithelium of sensory, support and gland cells and a small basiepithelial nerve ple...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00229616
更新日期：1978-03-13 00:00:00
abstract：:Three sites of somatostatin-synthesizing perikarya, or a related antigen, were determined by immunofluorescence in the hypothalamus of the tadpole, Alytes obstetricans (Amphibia, Anura). Two sites of neurosecretory perikarya were localized in the preoptic nuclei of the anterior hypothalamus; the axons extended either ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00224373
更新日期：1978-02-24 00:00:00
abstract：:We present an experimental method allowing the production of three-dimensional organ-like structures, namely microtissues (MTs), in vitro without the need for exogenous extracellular matrix (ECM) or growth factors. Submandibular salivary glands (embryonic day ED14), kidneys (ED13) and lungs (ED13) were harvested from ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-016-2487-6
更新日期：2016-12-01 00:00:00
abstract：:Changes in the frequency of endocrine cells are evidence of intestinal adaptation to germ-free (GF) status. Not only the distribution of these cells along the intestine, but also the differences in intracellular content of these regulatory peptides may be explored to explain functional and structural aspects of GF int...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410000323
更新日期：2001-03-01 00:00:00
abstract：:Appearance of immunoreactive corticotropin-releasing factor (CRF)-containing neurons was studied in developing hypothalamus of the rat by use of antisera against rat- and ovine CRF. These neurons were first recognized in the lateral and paraventricular nuclei on days 15.5 and 16.5 of gestation, respectively, when anti...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00219870
更新日期：1984-01-01 00:00:00
abstract：:The intrapancreatic localization and the effects on basal and stimulated insulin secretion of neuropeptide Y (NPY) were investigated in the mouse. Immunocytochemistry showed NPY to be confined to intrapancreatic nerve fibers mainly associated with blood vessels. Fine varicose NPY fibers were also detected in the exocr...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF01239960
更新日期：1987-04-01 00:00:00
abstract：:Light microscopy of native preparations, histology, and electron microscopy have revealed that Phlebotomus duboscqi belongs to a class of sand fly species with prompt development of the peritrophic matrix (PM). Secretion of electron-lucent fibrils, presumably chitin, starts immediately after the ingestion of a blood m...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-009-0802-1
更新日期：2009-08-01 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：: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：:The formation of secretory granules in chronically hypersecretory melanotrophs in the rat pituitary was studied. Hypersecretion was induced by treatment with the dopamine antagonist haloperidol (1.5 mg/kg daily for 7 days), which releases the normal neural dopaminergic inhibition of secretion from the melanotroph. Mor...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00319432
更新日期：1994-02-01 00:00:00
abstract：:Fixed cerebral vesicles of mouse foetuses were fractured and examined with the scanning electron microscope. This method provides a study of the three dimensional developmental features of the pseudostratified columnar epithelium up to the formation of the early cortex plate. Matrix cells are a cell population of homo...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00219466
更新日期：1975-11-12 00:00:00
abstract：:The passage of cells across the lymphatic endothelium of rat lacteals in both normal and non-pathological experimental conditions (fasting, lymphatic, stasis) was studied by means of serial thin sections and three-dimensional models. Two different pathways of transendothelial migration were observed: (1) macrophages e...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00327761
更新日期：1990-10-01 00:00:00
abstract：:In early postnatal rats, immunoreactive LHRH perikarya in the preoptic area were studied by light and electron microscopy. Synaptic junctions were found between the immunoreactive perikaryon or its process, and the immunonegative nerve fibers. The significance of these synapses is discussed in relation to possible mec...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00216754
更新日期：1981-01-01 00:00:00
abstract：:The maternal-fetal interface undergoes dynamic changes that promote successful development of the embryo/fetal allograft during pregnancy. This immune privilege of the conceptus is mediated through local and systemic cellular responses. In species in which endometrial decidualization accompanies pregnancy, unique immu...
journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s00441-015-2315-4
更新日期：2016-01-01 00:00:00
abstract：:The hydrozoan medusa Aglantha digitale (Müller 1776) has eight syncytical giant motor axons, up to 40 micrometers in diameter, running from the margin, up the inside of the bell towards the apex. Giant motor axons injected with Lucifer Yellow CH are connected with lateral neurons running circumferentially across the s...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF01258491
更新日期：1982-01-01 00:00:00
abstract：:Four months after the selective ablation of inner hair cells by carboplatin, the interdental cell epithelium exhibited dilated intercellular spaces and cytosolic vacuoles not seen in controls. In addition, the wide, often electron-lucent phalanges observed in the interdental cells of the normal chinchilla collapsed in...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410000253
更新日期：2000-10-01 00:00:00
abstract：:1,25-Dihydroxyvitamin D3 and 24,25-dihydroxyvitamin D3 have antagonistic effects on the acellular bone of the tilapia Sarotherodon mossambicus. 1,25-Dihydroxyvitamin D3 inhibits the activity of the lining osteoblasts. Prolonged administration leads to demineralization of the bone matrix. Injection of 24,25-dihydroxyvi...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00206270
更新日期：1983-01-01 00:00:00
abstract：:We have developed a simple and reliable method of preserving antigen immunoreactivity with concomitant excellent retention of the cell ultrastructure. Using this method, we have been able to follow the origin and developmental stages of nuage accumulations within the nurse cell/oocyte syncytium in the ovary of the fru...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-011-1145-2
更新日期：2011-04-01 00:00:00
abstract：:The developmental mutant of Drosophila (oraJK84) is characterized by nonfunctional photoreceptor cells (R1-6), while the R7/R8 cells are normal. A fundamental question is: Does the near absence of photosensitive membranes inhibit development of the R1-6 axons and their synapses at the other end of the cell? The retina...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00238298
更新日期：1983-01-01 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
abstract：:The effect of phenylthiourea (PTU) on the pigment epithelium and the photoreceptor cells in the developing retina of Haplochromis burtoni was studied by electron microscopy. In the retinal pigment epithelium of 6-day old embryos, both types of melanin granule (spindle-shaped and rod-shaped) are already found. PTU inhi...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00219054
更新日期：1977-03-09 00:00:00
abstract：:The effect of copulation on the rat coagulating gland (anterior prostate) was studied. At 4 to 6 h after the beginning of copulation the coagulating glands of rats that had produced copulatory plugs were nearly empty of secretion. Ultrastructurally, the coagulating gland has large cisternae of rough endoplasmic reticu...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00221773
更新日期：1977-07-19 00:00:00
abstract：:The median eminence/pituitary stalk represents the final common pathway for fibers from neurons that project to the pituitary gland. We have used the lipophilic fluorescent tracer 1,1'-dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate (DiI) to determine the location of neurons projecting to the median emin...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00304513
更新日期：1995-04-01 00:00:00
abstract：:Exocytotic release of the secretory granules of the endocrine cells in the midgut of a cockroach, Periplaneta americana, was studied by means of fixation with tannic acid in combination with glutaraldehyde and osmium tetroxide. A sequence of images indicative of exocytosis suggests the following steps in this process:...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00213851
更新日期：1982-01-01 00:00:00
abstract：:A detailed chronological electron-microscopic study of the bone remodeling sequence has been performed in the rat based on a previously described model (Tran Van et al. 1982) in which the remodeling activity is synchronized. This allowed the observation of the cellular and extracellular events during the bone remodeli...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00214682
更新日期：1982-01-01 00:00:00
