Abstract：
:The distribution of neuropeptide Y (NPY)-like immunoreactivity in the brain of the bichir, Polypterus senegalus, was examined immunohistochemically. NPY-like immunoreactivity was distributed widely in the brain, with the highest density in the diencephalon. NPY-positive perikarya were found in various areas, including the terminal nerve, the pallial zones of the telencephalon, the periventricular preoptic nucleus, the thalamic nucleus, the ventral hypothalamus of the diencephalon, the tegmentum of the mesencephalon, and the area intermedioventralis of the rhombencephalon. In the hypothalamus, NPY-positive liquor-contacting neurons were frequently observed. Immunoreactive neuron-like cells also appeared in the distal lobe of the hypophysis. NPY fibers were densely distributed in the ventral telencephalon, the hypothalamus, and the ventrolateral area of the rhombencephalon. They were also demonstrated in the terminal nerve. In the hypophysis, NPY fibers were dense in the median eminence, but sparse in the neural lobe. Electron-microscopic double immunostaining of the terminal nerve revealed the coexistence of NPY-like antigen with gonadotropin-releasing hormone-like and molluscan cardioexcitatory tetrapeptide-like antigens in the same cytoplasmic granules. These results suggest that NPY or a related substance is involved in neuroregulation of various areas of the bichir brain, by mainly acting as a neurotransmitter or neuromodulator.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Chiba Adoi
10.1007/s004410050874subject
Has Abstractpub_date
1997-08-01 00:00:00pages
275-84issue
2eissn
0302-766Xissn
1432-0878journal_volume
289pub_type
杂志文章abstract：:The fine structure of boar Leydig cells is re-examined in samples post-fixed with OSO4-K4Fe(CN)6, an elective method to preserve the ultrastructural detail of the endocrine testis. The cells show a pleomorphic arrangement of the smooth endoplasmic reticulum. Large "vesicle-like" dilatations are interspersed in the tub...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00211483
更新日期：1983-01-01 00:00:00
abstract：:Chondrocytes were isolated enzymatically from rabbit ear cartilage, grown in vitro or as autotransplants for 1, 2 or 5 weeks and then examined by transmission electron microscopy. A confluent monolayer formed rapidly in vitro and the cells later grew in multiple overlapping layers, producing thick sheets of cartilagin...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00227600
更新日期：1977-05-31 00:00:00
abstract：:Exposure of adult brown bullheads Ictalurus nebulosus (120-450 g) to environmental hypercapnia (2% carbon dioxide in air) and subsequent recovery caused transient changes in whole body net sodium flux (JnetNa+) and net chloride flux (JnetCl-) resulting largely from changes in whole body sodium influx (JNa+in) and chlo...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00319161
更新日期：1992-06-01 00:00:00
abstract：:Germ cells of human fetuses aged 7-13 weeks were studied. Dense fibrous material called nuage was found in the cytoplasm of human fetal germ cells. The nuage increased in frequency in the germ cells during the interval studied. In oogonia the nuage occurred much more frequently than in spermatogonia and the frequency ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00209243
更新日期：1978-11-09 00:00:00
abstract：:A peptide hormone was extracted from the porcine right atrium following a bioassay for differential vasorelaxant effects on smooth muscle strips from aorta and renal and inferior mesenteric arteries. The isolation procedure included several steps of gel-permeation and ion-exchange chromatography, and high performance ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00219856
更新日期：1984-01-01 00:00:00
abstract：:The electrocyte fibers in the gymnotid Sternarchus albifrons are highly differentiated myelinated axons which exhibit several types of nodes of Ranvier and characteristically short internode lengths. In the present study, regeneration of the electrocyte fibers following removal of the tail was examined by electron mic...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00233869
更新日期：1980-01-01 00:00:00
abstract：:The innervation of the rat anococcygeus muscle has been investigated ultrastructurally following fixation with a modified chromaffin reaction for the demonstration of biogenic amines (Tranzer and Richards, 1976). Three types of nerve profiles were revealed: (1) 60-70% of the profiles are adrenergic; (2) less than 5% o...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00236418
更新日期：1979-08-01 00:00:00
abstract：:Bone marrow (BM) from human and rodent species contains a population of multipotential cells referred to as mesenchymal stem cells (MSCs). Currently, MSCs are isolated indirectly by using a culture step and then the generation of fibroblast colony-forming units (CFU-fs). Unprocessed or native BM MSCs have not yet been...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-006-0292-3
更新日期：2007-03-01 00:00:00
abstract：:Recent studies demonstrated the expression of the insulin receptor (InsR) and its functional interaction with the transient receptor potential vanilloid type 1 receptor (TRPV1) in primary sensory neurons (PSNs). The present study was undertaken to reveal the target-specific expression of the InsR and its co-localizati...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-018-2868-0
更新日期：2018-11-01 00:00:00
abstract：:The production of nerve growth factor (NGF) in peripheral organs may play a role in the pathophysiology of hypertension and in obstructive disorders of the bladder outlet. We have been examining the cellular processes of NGF delivery and secretion in smooth muscle. NGF secretion from vascular smooth muscle cells (VSMC...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410050861
更新日期：1997-07-01 00:00:00
abstract：:Changes in intestinal function, notably impaired transit, following ischemia/reperfusion (I/R) injury are likely to derive, at least in part, from damage to the enteric nervous system. Currently, there is a lack of quantitative data and methods on which to base quantitation of changes that occur in enteric neurons. In...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-010-1126-x
更新日期：2011-04-01 00:00:00
abstract：:Palatal shelf elevation is a crucial process in palate development, with the contribution of various factors. Disturbances in any factor during this process result in cleft palate. Prior to palatal shelf elevation starting from embryonic day 12.5, the Rac1 expression level in the bend region of the mid-palatal shelf p...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-015-2169-9
更新日期：2015-09-01 00:00:00
abstract：:The kidney is an organ involved in cross talk with many human organs. The link between the immune system and the kidney has been studied in some detail, although data precisely elucidating their interaction are sparse, in particular with regard to the function of the kidney filter apparatus. Current research suggests ...
journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s00441-017-2635-7
更新日期：2017-07-01 00:00:00
abstract：:Andersen's syndrome (AS) is a rare autosomal disorder that has been defined by the triad of periodic paralysis, cardiac arrhythmia, and developmental anomalies. AS has been directly linked to over 40 different autosomal dominant negative loss-of-function mutations in the KCNJ2 gene, encoding for the tetrameric strong ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-017-2696-7
更新日期：2018-02-01 00:00:00
abstract：:We investigated the binding characteristics of two monoclonal antibodies, 4F3 and 3F8, which in the retina specifically stain Müller cells, both with protein blots and immunohistochemically in sections of various regions of the central nervous system of neonatal and adult cats and rats. Clear differences emerged betwe...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410050887
更新日期：1997-09-01 00:00:00
abstract：:The hormone-induced pigment dispersion in primary cultures of xanthophores of goldfish (Carassius auratus L.) has been shown to involve the dispersion of not only carotenoid droplets but also of smooth endoplasmic reticulum. The dispersion of these organelles is inhibited by cytochalasin B and is accompanied by thinni...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00219555
更新日期：1978-07-10 00:00:00
abstract：:A recently developed immunohistochemical technique for serotonin (Steinbusch et al. 1978) was used in the present investigation to study the occurrence of this indoleamine in the granulated epithelial cells of neuro-epithelial bodies (NEB). Lungs from neonatal rabbits and pigs exhibit immunoreactive cell groups identi...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00217095
更新日期：1982-01-01 00:00:00
abstract：:A body of evidence points to the existence of stem cell stores in adult tissues, in addition to the well-known hematopoietic stem cells from bone marrow. Many reports describe the ability of these multipotent cells (developmentally non-compromised with their organs of origin) to give rise to many different cell types ...
journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s00441-006-0172-x
更新日期：2006-09-01 00:00:00
abstract：:The amniotic epithelium constitutes a diffusion barrier controlling the passage of solutes and water between the amniotic cavity and maternal circulation. With the present immunocytochemical approach, we have shown that several major components of the cyto-skeleton, i.e., actin, alpha-actinin, spectrin and ezrin, are ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00318194
更新日期：1991-11-01 00:00:00
abstract：:Germ cells are set aside from somatic cells early in embryogenesis, and are responsible for transmitting genetic information through generations. Vasa is a highly conserved germ cell marker across animal phyla, and widely used to label primordial germ cells. Dabry's sturgeon is a rare and endangered species distribute...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-016-2418-6
更新日期：2016-10-01 00:00:00
abstract：:The existence of the surface-connected canalicular system (SCCS) has been demonstrated in semithick sections of the frog thrombocytes by the use of a high voltage electron microscope. The SCCS of the thrombocytes in Rana catesbeiana and Rana nigromaculata consists of numerous canaliculi and vesicles with a diameter of...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00237001
更新日期：1979-10-01 00:00:00
abstract：:The three-dimensional structure of the mitochondria and sarcoplasmic reticulum (SR) in the three types of twitch fibers, i.e., the red, white and intermediate skeletal muscle fibers, of the vastus lateralis muscle of the Japanese meadow frog (Rana nigromaculata nigromaculata Hallowell) was examined by high resolution ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00218939
更新日期：1987-12-01 00:00:00
abstract：:Retinal pigment epithelial cells from chicks at various stages of development were examined by transmission electron microscopy to determine how the adult form of the zonula adhaerens, composed of subunits termed zonula adhaerens complexes, is acquired. During early stages of development, between embryonic day 4 and e...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF01740771
更新日期：1990-03-01 00:00:00
abstract：:Locust lipoproteins (lipophorins) were localized by indirect immunofluorescence- and immunogold labelling in cryosections of dorsolongitudinal flight muscles. Immunolabelling was performed with monoclonal antibodies against apolipoproteins epitopes that are exposed at the surfaces of the lipophorin particles. Both at ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00216654
更新日期：1988-06-01 00:00:00
abstract：:The ultrastructural localization of dipeptidyl peptidase IV (DPP IV) (EC 3.4.14.5) in rat submandibular and parotid glands was studied immunocytochemically by the peroxidase-antiperoxidase (PAP) method, using a monospecific antiserum against rat kidney DPP IV. There were no differences in the immunocytochemical locali...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00217869
更新日期：1984-01-01 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：:Previously, we showed that synchronous autophagy occurred in the corpora allata during the declining phase of juvenile hormone synthesis in mated adult females of the cockroach Diploptera punctata. At the onset of this process, conspicuous whorl-like autophagosomes were often observed. Each consisted of a ribosome-con...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410050764
更新日期：1997-02-01 00:00:00
abstract：:Besides their well-known function in cellular bioenergetics, the role of mitochondria in signaling regulation of cells homeostasis and survival has been uncovered during the past few decades. Possessing an independent genome and a unique genetic code, mitochondria biosynthesize protective stress response factors, the ...
journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s00441-019-03049-z
更新日期：2019-08-01 00:00:00
abstract：:The mole has a single pair of accessory sex organs with features of both the prostate and the seminal vesicle, for which the term prostate gland is not appropriate. Seasonal changes occuring in this gland were related to four periods: a) the quiescence period, b) the maturation period, c) the active period and d) the ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00218718
更新日期：1976-12-10 00:00:00
abstract：:Fibres growing from neurons of explanted dorsal root ganglia from 10 day chick embryos were transected and subsequently observed by light and electron microscopy after periods of a few to fifty minutes. Changes immediately proximal and distal to the cut together with alterations further away from the site of injury on...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00219562
更新日期：1978-07-10 00:00:00
