WordNet
- optical properties; "the optics of a telescope"
- the branch of physics that studies the physical properties of light
PrepTutorEJDIC
- 光学
- (・・・を)選ぶ《+『for』+『名』》;(・・・するほうを)選ぶ《+『to』 do》
- 目の;視覚の
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- 1. Anesthesia for elective spine surgery in adults
- 2. 酸関連疾患治療のためのプロトンポンプ阻害剤の概要および比較 overview and comparison of the proton pump inhibitors for the treatment of acid related disorders
- 3. 出血性消化性潰瘍の治療の概要 overview of the treatment of bleeding peptic ulcers
- 4. ゾリンジャー - エリソン症候群（ガストリノーマ）のマネージメントおよび予後 management and prognosis of the zollinger ellison syndrome gastrinoma
- 5. 抗潰瘍剤の薬理学 pharmacology of antiulcer medications
English Journal
- Changes in fibroblast growth factor-2 and FGF receptors in the frog visual system during optic nerve regeneration.
- Duprey-Díaz MV, Blagburn JM, Blanco RE.Author information University of Puerto Rico-Medical Sciences Campus, Anatomy and Neurobiology Department, Institute of Neurobiology, Puerto Rico.AbstractWe have previously shown that application of fibroblast growth factor-2 (FGF-2) to cut optic nerve axons enhances retinal ganglion cell (RGC) survival in the adult frog visual system. These actions are mediated via activation of its high affinity receptor FGFR1, enhanced BDNF and TrkB expression, increased CREB phosphorylation, and by promoting MAPK and PKA signaling pathways. The role of endogenous FGF-2 in this system is less well understood. In this study, we determine the distribution of FGF-2 and its receptors in normal animals and in animals at different times after optic nerve cut. Immunohistochemistry and Western blot analysis were conducted using specific antibodies against FGF-2 and its receptors in control retinas and optic tecta, and after one, three, and six weeks post nerve injury. FGF-2 was transiently increased in the retina while it was reduced in the optic tectum just one week after optic nerve transection. Axotomy induced a prolonged upregulation of FGFR1 and FGFR3 in both retina and tectum. FGFR4 levels decreased in the retina shortly after axotomy, whereas a significant increase was detected in the optic tectum. FGFR2 distribution was not affected by the optic nerve lesion. Changes in the presence of these proteins after axotomy suggest a potential role during regeneration.
- Journal of chemical neuroanatomy.J Chem Neuroanat.2012 Dec;46(1-2):35-44. doi: 10.1016/j.jchemneu.2012.08.003. Epub 2012 Aug 25.
- We have previously shown that application of fibroblast growth factor-2 (FGF-2) to cut optic nerve axons enhances retinal ganglion cell (RGC) survival in the adult frog visual system. These actions are mediated via activation of its high affinity receptor FGFR1, enhanced BDNF and TrkB expression, in
- PMID 22940608
- Triploidy alters brain morphology in pre-smolt Atlantic salmon Salmo salar: possible implications for behaviour.
- Fraser TW, Fjelldal PG, Skjæraasen JE, Hansen T, Mayer I.Author information Department of Production Animal Clinical Sciences, Norwegian School of Veterinary Science, 0033 Oslo, Norway. tom.fraser@nvh.noAbstractTotal brain mass and the volumes of five specific brain regions in diploid and triploid Atlantic salmon Salmo salar pre-smolts were measured using digital images. There were no significant differences (P > 0·05) in total brain mass when corrected for fork length, or the volumes of the optic tecta or hypothalamus when corrected for brain mass, between diploids and triploids. There was a significant effect (P < 0·01) of ploidy on the volume of the olfactory bulb, with it being 9·0% larger in diploids compared with triploids. The cerebellum and telencephalon, however, were significantly larger, 17 and 8% respectively, in triploids compared with diploids. Sex had no significant effect (P > 0·05) on total brain mass or the volumes of any measured brain region. As the olfactory bulbs, cerebellum and telencephalon are implicated in a number of functions, including foraging ability, aggression and spatial cognition, these results may explain some of the behavioural differences previously reported between diploids and triploids.
- Journal of fish biology.J Fish Biol.2012 Dec;81(7):2199-212. doi: 10.1111/j.1095-8649.2012.03479.x. Epub 2012 Nov 16.
- Total brain mass and the volumes of five specific brain regions in diploid and triploid Atlantic salmon Salmo salar pre-smolts were measured using digital images. There were no significant differences (P > 0·05) in total brain mass when corrected for fork length, or the volumes of the optic tect
- PMID 23252734
- Expansion, folding, and abnormal lamination of the chick optic tectum after intraventricular injections of FGF2.
- McGowan LD, Alaama RA, Freise AC, Huang JC, Charvet CJ, Striedter GF.Author information Department of Neurobiology and Behavior, University of California, Irvine, CA 92697, USA. lukemcgowan1@yahoo.comAbstractComparative research has shown that evolutionary increases in brain region volumes often involve delays in neurogenesis. However, little is known about the influence of such changes on subsequent development. To get at this question, we injected FGF2--which delays cell cycle exit in mammalian neocortex--into the cerebral ventricles of chicks at embryonic day (ED) 4. This manipulation alters the development of the optic tectum dramatically. By ED7, the tectum of FGF2-treated birds is abnormally thin and has a reduced postmitotic layer, consistent with a delay in neurogenesis. FGF2 treatment also increases tectal volume and ventricular surface area, disturbs tectal lamination, and creates small discontinuities in the pia mater overlying the tectum. On ED12, the tectum is still larger in FGF2-treated embryos than in controls. However, lateral portions of the FGF2-treated tectum now exhibit volcano-like laminar disturbances that coincide with holes in the pia, and the caudomedial tectum exhibits prominent folds. To explain these observations, we propose that the tangential expansion of the ventricular surface in FGF2-treated tecta outpaces the expansion of the pial surface, creating abnormal mechanical stresses. Two alternative means of alleviating these stresses are tectal foliation and the formation of pial holes. The latter probably alter signaling gradients required for normal cell migration and may generate abnormal patterns of cerebrospinal fluid flow; both abnormalities would generate disturbances in tectal lamination. Overall, our findings suggest that evolutionary expansion of sheet-like, laminated brain regions requires a concomitant expansion of the pia mater.
- Proceedings of the National Academy of Sciences of the United States of America.Proc Natl Acad Sci U S A.2012 Jun 26;109 Suppl 1:10640-6. doi: 10.1073/pnas.1201875109. Epub 2012 Jun 20.
- Comparative research has shown that evolutionary increases in brain region volumes often involve delays in neurogenesis. However, little is known about the influence of such changes on subsequent development. To get at this question, we injected FGF2--which delays cell cycle exit in mammalian neocor
- PMID 22723357
Japanese Journal
- The expression of MAPs in the developing chick optic tectum
- Acta histochemica et cytochemica 35(1), 62, 2002
- NAID 110003150930
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- Define optic tecta. optic tecta synonyms, optic tecta pronunciation, optic tecta translation, English dictionary definition of optic tecta. n. pl. tec·ta A rooflike structure of the body, especially the dorsal part of the midbrain. tec′tal ...
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★リンクテーブル★
| リンク元 | 「optic tectum」「tectal」「tectum」 |
| 関連記事 | 「opt」「optic」「optics」 |
「optic tectum」
「tectal」
- 蓋の、視蓋の
「tectum」
「opt」
- v.
- 選ぶ、選択する
「optic」
- adj.
- 視覚性の、視覚の
「optics」
- 関
- optical