Fine structure of the compound eyes of the midwater amphipod Phronima in relation to behavior and habitat.

abstract：:Little is known of the cell biology of Leydig cells during the neonatal activation of the hypothalamic-pituitary-testicular (HPT) axis. The current study examined the effect of blockade of the HPT axis with a GnRH antagonist (antide) on the neonatal population of Leydig cells in the new world primate, the common marmo...

journal_title：Tissue & cell

authors： Prince FP,Mann DR,Fraser HM

更新日期：1998-12-01 00:00:00

abstract：:Endothelial injury is regarded as the initial pathological process in diabetic vascular diseases, but effective therapy has not yet been identified. Although β-hydroxybutyrate plays various protective roles in the cardiovascular system, its ability to antagonize diabetic endothelial injury is unclear. β-hydroxybutyrat...

journal_title：Tissue & cell

authors： Wu X,Miao D,Liu Z,Liu K,Zhang B,Li J,Li Y,Qi J

更新日期：2020-06-01 00:00:00

abstract：:The surface topologies of mouse adrenal cortex tumor cells of primary or clonal origin grown as monolayer cell cultures were observed by scanning electron microscopy following their exposure to substances that effect steroid release and/or cell rounding. ACTH induced cell rounding with a concomitant profuse developmen...

journal_title：Tissue & cell

authors： Cuprak LJ,Lammi CJ,Bayer RC

更新日期：1977-01-01 00:00:00

abstract：:The dynamics of human and animal adipogenesis has been defined using several traditional cell systems including stromal vascular cells and adipocyte-related cell lines. But a relatively new cell system using progeny cells stemming from the dedifferentiation of purified cultures of mature adipocytes may be used for stu...

journal_title：Tissue & cell

authors： Wei S,Duarte MS,Du M,Paulino PV,Jiang Z,Albrecht E,Fernyhough-Culver M,Zan L,Hausman GJ,Dodson MV

更新日期：2012-12-01 00:00:00

abstract：:Housefly brain cholinesterase was histochemically demonstrated to hydrolyse phenylthioacetate at a very high rate, similar in distribution to that previously reported for acetylthiocholine. However, teleost neural retina cholinesterase would not hydrolyse the aromatic substrate, but the enzyme did cleave acetylthiocho...

journal_title：Tissue & cell

authors： Booth GM,Whitt GS

更新日期：1970-01-01 00:00:00

abstract：:The integument of Euperipatoides leukarti (Onychophora) has been studied by SEM and TEM-histochemical techniques. The thin (2-3 mu) cuticle is essentially arthropodan in design, comprising a thin, lamellate outer epicuticle, a homogeneous inner epicuticle, and an extensive fibrous procuticle. Five tanned lipoprotein l...

journal_title：Tissue & cell

authors： Wright JC,Luke BM

更新日期：1989-01-01 00:00:00

abstract：:Emigration of granulocytes from vessel lumen to a site of injury is a hallmark of acute inflammation but whether this migration is necessarily associated with vascular damage is not clear. To follow the structural changes associated with granulocyte migration across an intact endothelial cell layer and to assess chang...

journal_title：Tissue & cell

authors： Meyrick B,Hoffman LH,Brigham KL

更新日期：1984-01-01 00:00:00

abstract：:Female adults of the bagworm moth, Eumeta variegata, lack wings completely, whereas male adults of this species have functional wings. We previously found that ecdysteroid induces apoptotic events in the female wing rudiment of E. variegata in vitro, whereas the male wing discs cultured with 20-hydroxyecdysone (20E) u...

journal_title：Tissue & cell

authors： Niitsu S,Lobbia S,Kamito T

更新日期：2011-06-01 00:00:00

abstract：:Reptilian epidermis contains two types of keratin, soft (alpha) and hard (beta). The biosynthesis and molecular weight of beta-keratin during differentiation of lizard epidermis have been studied by autoradiography, immunocytochemistry and immunoblotting. Tritiated proline is mainly incorporated into differentiating a...

journal_title：Tissue & cell

authors： Alibardi L,Spisni E,Frassanito AG,Toni M

更新日期：2004-10-01 00:00:00

abstract：:Three different metal salts, silver nitrate, uranyl acetate and lead citrate, are mixed with a collagen gel to produce 3 metal/collagen sponges. These sponges were implanted subcutaneously in the rat and samples harvested after 5 days of implantation. TEM observation shows that sponges are degraded and digested by mac...

journal_title：Tissue & cell

authors： Anselme K,Julliard K,Blaineau S

更新日期：1990-01-01 00:00:00

abstract：:Harderian glands exist in the orbits of most terrestrial vertebrates. The basic function of the gland is the lubrication of the eye. The present study was carried out to shed some light on the ultrastructure of the still enigmatic Harderian gland of the lizard Uromastyx microlepis, a common species in Kuwait and other...

journal_title：Tissue & cell

authors： Sabry I,Al-Ghaith L

更新日期：2000-02-01 00:00:00

abstract：:A novel type of pore canal is described from the cuticle of three species of Gammarus. Each canal passes from the epidermis vertically through the endocuticle and exocuticle, and in the most distal layers of the latter is slightly expanded. Before entering the epicuticle the canal narrows, forming a neck the base of w...

journal_title：Tissue & cell

authors： Halcrow K

更新日期：1978-01-01 00:00:00

abstract：:To obtain information about the chemical composition of pore structures in antennal sensilla, the antennae were exposed to lipid solvents, or they were prepared to show negative-contrast images in electron micrographs. A heavy-metal tracer, lanthanum nitrate, was also used to indicate the permeability of the receptors...

journal_title：Tissue & cell

authors： Hawke SD,Farley RD

更新日期：1971-01-01 00:00:00

abstract：:Isolation and culture of Xenopus laevis neural tubes resulted in differentiation of melanophores and iridophores from neural crest cells; the differentiated melanophores and iridophores were then maintained in culture for more than 6 months. Guanosine has been reported to promote reflecting platelet formation in melan...

journal_title：Tissue & cell

authors： Fukuzawa T,Kikuchi Y

更新日期：2018-10-01 00:00:00

abstract：:The incorporation of H(3)-histidine and H(3)-glucosamine by ovarian follicles of cecropia moths during incubation in female blood was followed autoradicgraphically. Labeling was most prominent in the follicle cells, the spaces between these cells, and the nascent yolk spheres in the oocyte cortex. Results of pulse-cha...

journal_title：Tissue & cell

authors： Anderson LM,Telfer WH

更新日期：1969-01-01 00:00:00

abstract：:The large sensilla basiconica of different species of the Sphecoidea are similarly shaped. Each sensillum is associated with a large number of sense cells as well as three envelope cells, the second of which is doubled. During early development degenerating supernumerous envelope cells were observed. After the early c...

journal_title：Tissue & cell

authors： Martini R

更新日期：1986-01-01 00:00:00

abstract：:Zebra Finches are the epitome of desert-adapted avian species; i.e. they are able to survive without drinking water for over a year. Whereas transepidermal water loss (TEWL) in naked Zebra Finch nestlings is lower than in adults, and desert adaptation is accompanied by intercellular deposition of epidermal multigranul...

journal_title：Tissue & cell

authors： Menon GK,Baptista LF,Brown BE,Elias PM

更新日期：1989-01-01 00:00:00

abstract：:An intestinal epithelial cell line (IEC-17), undergoing a process of progressive morphological differentiation, was analysed for expression and synthesis of the extracellular matrix glycoproteins, fibronectin (FN) and laminin (LM). FN and LM cell surface expression was detected by immunoelectron microscopy, while intr...

journal_title：Tissue & cell

authors： Scarpa S,D'Orazi G,Modesti A,Valia S,Zucco F,Stammati A

更新日期：1988-01-01 00:00:00

abstract：:Structural and histological features of the nasal cavity of sea turtles are largely different from those of other Testudines species. The sea turtle nasal cavity is a pair of tubular structures with three diverticula and an excavation in the center, and three types of sensory epithelium are present in these four signi...

journal_title：Tissue & cell

authors： Kondoh D,Kitayama C,Aiko Y,Yamaguchi Y

更新日期：2020-08-01 00:00:00

abstract：:Head and neck cancers are common in several regions of the world and the treatment usually includes radiotherapy. This treatment can generate adverse effects to the salivary flow, with a relationship between the dose and the damage caused. Salivary gland cells are highly permeable to water and therefore, they express ...

journal_title：Tissue & cell

authors： Araujo MVT,Spadella MA,Chies AB,Arruda GV,Santos TM,Cavariani MM,Domeniconi RF

更新日期：2018-08-01 00:00:00

abstract：:Examination of livers from transgenic mice over expressing human growth hormone (hGH) revealed numerous alterations including a striking incidence of mitotic figures. The reason for increased proliferation is unclear, but could be related to effects of hGH, which is also acting as a lactogen in rodents. In order to id...

journal_title：Tissue & cell

authors： Vergani G,Mayerhofer A,Bartke A

更新日期：1994-06-01 00:00:00

abstract：:Cell surface expression of the epidermal growth factor (EGF) receptor in several cell lines declines as a function of increased cell density and is associated with diminished responsiveness to EGF. However, the mechanism whereby this density-induced down regulation of receptors occurs has not been discerned. In the pr...

journal_title：Tissue & cell

authors： Suárez-Quian CA,Byers SW

更新日期：1993-01-01 00:00:00

abstract：:We used specific markers and fluorescence microscopy to identify and characterize cerebrovascular cells. Cultures were derived from brain microvessels isolated from normotensive (Wistar Kyoto, WKY) and spontaneously hypertensive (SHR) rat brains prior to, coincident with and following the onset of chronic hypertension...

journal_title：Tissue & cell

authors： Herman IM,Newcomb PM,Coughlin JE,Jacobson S

更新日期：1987-01-01 00:00:00

abstract：:We have performed studies to determine if different populations of satellite cells provide nuclei to growing and regenerating skeletal muscle fibers. Satellite cells were isolated from regenerating or growing anterior tibialis muscles, and their phenotypic properties were compared in vitro. Isolates from regenerating ...

journal_title：Tissue & cell

authors： Molnar G,Ho ML,Schroedl NA

更新日期：1996-10-01 00:00:00

abstract：:As already reported, epixenosomes have a complex cell organization although they lack membranous organelles and a nuclear envelope. Different morphological compartments have been evidenced: (1) a space (IM) between the 2 external membranes in which acid phosphatase has been observed; (2) an apical, electrondense zone ...

journal_title：Tissue & cell

authors： Rosati G,Giambelluca MA,Taiti E

更新日期：1996-06-01 00:00:00

abstract：:Experimental use of primary cultures of endocrine pancreas is constrained by early, vigorous proliferation of fibroblastoid cells. The addition of heavy metals, sodium ethylmercurithiosalicylate, phenyl mercuric acetate, phenyl mercuric nitrate and sodium aurothiomalate to the culture media selectively destroys these ...

journal_title：Tissue & cell

authors： Braaten JT,Järlfors U,Smith DS,Mintz DH

更新日期：1975-01-01 00:00:00

abstract：:In the central canal, F-actin is predominantly localized in the apical region, forming a ring-like structure around the circumference of the lumen. However, an exception is found in the medulla oblongata, where the apical F-actin becomes interrupted in the ventral aspect of the canal. To clarify the precise localizati...

journal_title：Tissue & cell

authors： Tan BH,Guo CY,Xiong TQ,Chen LM,Li YC

更新日期：2017-04-01 00:00:00

abstract：:Aggregation factors, purified from 14 sponges which belong to the classes Tetraxonida and Cornacuspongia, Were visualized electron microscopically. Two types of basic structural forms were detected; first, circular structures from the species Ancorina cerebrum, Mycale massa, Hemimycale columella, Crella rosea, Clathri...

journal_title：Tissue & cell

authors： Müller WE,Conrad J,Pondeljak V,Steffen R,Zahn RK

更新日期：1982-01-01 00:00:00

abstract：:The watery vacuoles first described from larval insect fat body (Chironomus, Voinov, 1927; Aedes, Wigglesworth, 1942; Rhodnius, Wigglesworth, 1967) have been studied in 4th and 5th stage Calpodes larvae. The vacuoles arise at the beginning (E + 6-24 hr) of the 4th stadium from plasma membrane infolds that separate fro...

journal_title：Tissue & cell

authors： McDermid H,Locke M

更新日期：1983-01-01 00:00:00

abstract：:The ultrastructure of peduncle muscle attachment to the cuticular flange in the opercular filament of the serpulid Pomatoceros lamarckii Quatrefages is described. The cuticular flange is composed of layers of orthogonally arranged fibres. Specialized epithelial cells (tendon cells) and a collagenous matrix intervene b...

journal_title：Tissue & cell

authors： Bubel A

更新日期：1983-01-01 00:00:00