Functional states and fine structure of the contractile apparatus of the penis retractor muscle (PRM) of Helix pomatia L.

abstract：:Neural lobes of control and "Jimpy" mice were examined electron microscopically. The ultrastructure and incidence of pituicytes was examined following reports of reductions in astrocyte and oligodendrocyte populations in areas of the CNS of Jimpy mice. The failure to demonstrate any modification of structure or number...

journal_title：Cell and tissue research

authors： Livingston A

更新日期：1976-03-05 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

authors： Zhang R,Engler A,Taylor V

更新日期：2018-01-01 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

authors： Borcar A,Menze MA,Toner M,Hand SC

更新日期：2013-01-01 00:00:00

abstract：:Sigma receptor 1 (σR1), a non-opiate transmembrane protein located on endoplasmic reticulum (ER) and mitochondrial membranes, is considered to be a molecular chaperone. Marked protection against cell death has been observed when ligands for σR1 have been used in in vitro and in vivo models of retinal cell death. Mice ...

journal_title：Cell and tissue research

authors： Ha Y,Shanmugam AK,Markand S,Zorrilla E,Ganapathy V,Smith SB

更新日期：2014-04-01 00:00:00

abstract：:Hydroxyindole O-methyltransferase (HIOMT)-immunoreactive cells and melatonin synthesis were demonstrated in bovine epithalamus (including the pineal gland) with monoclonal antibodies and cRNA probes to HIOMT. The HIOMT-immunoreactive product was present in the cytoplasm of pinealocytes. All identifiable pinealocytes w...

journal_title：Cell and tissue research

authors： Sato T,Deguchi T,Ichikawa T,Fujieda H,Wake K

更新日期：1991-03-01 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

authors： Eagleson GW,McKeown BA

更新日期：1978-05-18 00:00:00

abstract：:Removal of the somatic DNA methylation pattern from donor cells and remodeling of embryonic status have been suggested as integral processes for successful nuclear transfer (NT) reprogramming. This study has investigated the effects of 5-azacytidine (5-azaC), a DNA methylation inhibitor, on global methylation changes ...

journal_title：Cell and tissue research

authors： Mohana Kumar B,Jin HF,Kim JG,Song HJ,Hong Y,Balasubramanian S,Choe SY,Rho GJ

更新日期：2006-09-01 00:00:00

abstract：:In model experiments with the use of horseradish peroxidase (HRP), two pathways of transport of substances to the adenohypophysis were studied, as well as the distribution of the tracer in the latter organ. The first pathway allows the tracer to penetrate from the intercellular milieu of the median eminence below the ...

journal_title：Cell and tissue research

authors： Krisch B,Buchheim W

更新日期：1984-01-01 00:00:00

abstract：:Orexins (OxA and OxB) and their receptors (Ox1R and Ox2R), originally detected in the hypothalamus, have also been localized in multiple cerebral areas and peripheral organs. Thus, in addition to their central function in the regulation of food intake, arterial blood pressure, heart rate, sleep/wake cycle, sexual beha...

journal_title：Cell and tissue research

authors： Assisi L,Tafuri S,Liguori G,Paino S,Pavone LM,Staiano N,Vittoria A

更新日期：2012-06-01 00:00:00

abstract：:Testicular neoplasms occur spontaneously in androgen insensitive mice with testicular feminization (tfm/y); they are composed of Leydig cells, lipid-laden cells, fibroblastlike cells, and macrophages. The small Leydig cells in the periphery of the tumor are structurally similar to nontumorous tfm/y Leydig cells, where...

journal_title：Cell and tissue research

authors： Chung KW

更新日期：1980-01-01 00:00:00

abstract：:The livers of Xenopus laevis, grouped by chronological age (0.5, 2 and 3 yrs), were studied electron microscopically. Ultrastructurally most of the melanin granules in the mature female liver showed an internal structure similar to the melanin granules of the oocytes. The hepatic melanin granules of immature females a...

journal_title：Cell and tissue research

authors： Noda K,Nomaguchi T,Tanaka Y

更新日期：1977-12-19 00:00:00

abstract：:The central fat body of the ovoviviparous cockroach Nauphoeta cinerea was studied during the first reproductive cycle of the female by means of light microscopy, autoradiography and electron microscopy. Comparative studies in larval stages were also undertaken. The fat body of Nauphoeta contains a large amount of lipi...

journal_title：Cell and tissue research

authors： Wüest J

更新日期：1978-04-28 00:00:00

abstract：:The distribution of somatostatin and cocaine and amphetamine-regulated transcript (CART) was investigated in rat intracardiac ganglia. Somatostatin immunoreactivity was only present in nerve terminals, always colocalised with choline acetyltransferase immunoreactivity, surrounding approximately 10% of intracardiac neu...

journal_title：Cell and tissue research

authors： Richardson RJ,Grkovic I,Anderson CR

更新日期：2006-04-01 00:00:00

abstract：:Extracellular matrix (ECM) plays a dynamic role during tissue development and re-growth. Body part regeneration efficiency relies also on effective ECM remodelling and deposition. Among invertebrates, echinoderms are well known for their striking regenerative abilities since they can rapidly regenerate functioning com...

journal_title：Cell and tissue research

authors： Ferrario C,Czarkwiani A,Dylus DV,Piovani L,Candia Carnevali MD,Sugni M,Oliveri P

更新日期：2020-09-01 00:00:00

abstract：:The termination of intrafusal muscle fibres was studied in muscle spindles of the tenuissimus muscle of the Chinese hamster. Most nuclear chain fibres terminated within the spindle capsule. The nuclear bag- and nuclear chain fibres that extended beyond the limit of the spindle capsule terminated in the endomysial conn...

journal_title：Cell and tissue research

authors： Desaki J,Uehara Y

更新日期：1983-01-01 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

authors： Sykes PA,Norman HS,Condron BG

更新日期：2004-09-01 00:00:00

abstract：:By using an antiserum raised against a crustacean beta-pigment-dispersing hormone (PDH), the distribution and chemical neuroanatomy of PDH-like immunoreactive neurons was investigated in the central nervous system of the gastropod snails, Helix pomatia and Lymnaea stagnalis. The number of immunoreactive cells in the H...

journal_title：Cell and tissue research

authors： Elekes K,Nässel DR

更新日期：1999-02-01 00:00:00

abstract：:Although several studies have shown a dysregulation of microRNA (miRNA) expression profiles in cutaneous melanoma, there has been little research on the miRNA machinery itself. In this study, we investigated the mRNA expression profiles of different miRNA machinery components in primary cutaneous malignant melanoma (P...

journal_title：Cell and tissue research

authors： Sand M,Skrygan M,Georgas D,Sand D,Gambichler T,Altmeyer P,Bechara FG

更新日期：2012-10-01 00:00:00

abstract：:In this study, we demonstrate the role of M cells in uptake of poly(D-L-lactic-co-glycolic acid) (PLGA) microspheres and transport into rabbit Peyer's patches. Microspheres 1 to 10 microns in diameter composed of 50:50 lactic acid:glycolic acid were instilled into intestinal segments containing jejunal or ileal Peyer'...

journal_title：Cell and tissue research

authors： Ermak TH,Dougherty EP,Bhagat HR,Kabok Z,Pappo J

更新日期：1995-02-01 00:00:00

abstract：:This study documents neuronal differentiation in vitro from undifferentiated precursor cells of caudalmost regenerating spinal cord of the teleost Apteronotus albifrons. At 11 days in vitro, cells from the caudalmost tip of the regenerating cord are flat and polygonal in shape, lack neuronal processes and do not stain...

journal_title：Cell and tissue research

authors： Anderson MJ,Rossetto DL,Lorenz LA

更新日期：1994-11-01 00:00:00

abstract：:The three-dimensional architecture of the tubular endocytic apparatus and the endoplasmic reticulum in the rat yolk-sac endoderm was investigated after loading with horseradish peroxidase-conjugated concanavalin A by intrauterine administration. After 30 min, small vesicles (50-150 nm in diameter), small tubules (80-1...

journal_title：Cell and tissue research

authors： Ichimura T,Hatae T,Sakurai T,Ishida T

更新日期：1994-11-01 00:00:00

abstract：:The pinealocytes of the pig contain conspicuous dense bodies, the nature and role of which are not yet fully elucidated. The aim of this study was to demonstrate whether or not these structures are involved in the secretion process. The tannic acid-Ringer incubation (TARI)-method, which allows a clear-cut ultrastructu...

journal_title：Cell and tissue research

authors： Przybylska B,Masson-Pévet M,Pévet P

更新日期：1991-05-01 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

authors： Rowinński J,Kucharczyk K,Boniecka T

更新日期：1977-02-02 00:00:00

abstract：:The innervation of the uterus in the ovoviviparous urodele Salamandra salamandra was studied. In whole mount preparations of the thin-walled uterus of pregnant females, a dense adrenergic network was demonstrated using a modified glyoxylic acid fluorescence technique. Based on vesicle type and cytochemical reactivity ...

journal_title：Cell and tissue research

authors： Greven H,Schindelmeiser J,Straub H

更新日期：1983-01-01 00:00:00

abstract：:In marine cartilaginous fish, reabsorption of filtered urea by the kidney is essential for retaining a large amount of urea in their body. However, the mechanism for urea reabsorption is poorly understood due to the complexity of the kidney. To address this problem, we focused on elephant fish (Callorhinchus milii) fo...

journal_title：Cell and tissue research

authors： Kakumura K,Takabe S,Takagi W,Hasegawa K,Konno N,Bell JD,Toop T,Donald JA,Kaneko T,Hyodo S

更新日期：2015-12-01 00:00:00

abstract：:The enteric nervous system appears to play a pivotal role in the functional recovery of the gastrointestinal tract after partial resection and reanastomosis, but the structural changes following surgery are not fully understood. The present study was designed to clarify the processes of myenteric plexus regeneration u...

journal_title：Cell and tissue research

authors： Tokui K,Sakanaka M,Kimura S

更新日期：1994-08-01 00:00:00

abstract：:The function of exocytosis during plasma membrane resealing might be to facilitate the flow of surface lipid over the disruption site and/or to add defect-spanning "patches" of internal membrane across it. Scanning-electron-microscopic visualization of large plasma membrane disruptions in sea urchin eggs is here used ...

journal_title：Cell and tissue research

authors： McNeil PL,Baker MM

更新日期：2001-04-01 00:00:00

abstract：:The uptake of macromolecules and larger energy-rich particles into the cell is known as phagocytosis. Phagocytosed material is enzymatically degraded in membrane-bound vesicles of the endosome/lysosome system (intracellular digestion). Whereas most, if not all, cells of the animal body are equipped with the molecular ...

journal_title：Cell and tissue research

authors： Hartenstein V,Martinez P

更新日期：2019-09-01 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

authors： Friis-Hansen L,Wierup N,Rehfeld JF,Sundler F

更新日期：2005-07-01 00:00:00

abstract：:The distribution of gap junctions (nexuses) in various parts of the small and large intestines of the guinea-pig was studied using the freeze-fracture technique and in thin sections. The percentage area of smooth muscle cell surface occupied by gap junctions varies from 0.50% in the circular muscle of the duodenum to ...

journal_title：Cell and tissue research

authors： Gabella G,Blundell D

更新日期：1981-01-01 00:00:00