visual pigment

• 視物質

関

retinal pigment

WordNet

1. acquire pigment; become colored or imbued
2. any substance whose presence in plant or animal tissues produces a characteristic color
3. color or dye with a pigment; "pigment a photograph"
4. dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)

PrepTutorEJDIC

1. 〈U〉〈C〉(おもに紛末の)絵の具,顔料 / 〈U〉色素
2. 『視覚の』 / 目に見える;目で見た / 有視界の

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/06/06 05:28:07」(JST)

wiki en

[Wiki en表示]

Ommochrome (or visual pigment) refers to several biological pigments that occur in the eyes of crustaceans and insects. The eye color is determined by the ommochromes. Ommochromes are also found in the chromatophores of cephalopods, and in spiders.

Ommochromes are metabolites of tryptophan, via kynurenine and 3-hydroxykynurenine. They are responsible for a wide variety of colors, ranging from yellow over red and brown to black. Lighter colors tend to be generated by ommatins, while mixtures of ommatin and ommins are responsible for darker colors.

In spiders, ommochromes are usually deposited as pigment granules within the cells of the hypodermis, immediately beneath the cuticle.

See also

• Opsin

UpToDate Contents

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• 1. 全身化学療法による眼の副作用ocular side effects of systemically administered chemotherapy [show details]
  …altitudinal visual field loss and moderate central visual acuity loss. A significant number of subclinical abnormalities can be seen with visual-evoked potential testing. In a prospective study, visual-evoked… toxicity to the retinal pigment epithelium leading to pigmentary retinopathy, accumulation of fluid under the retinal pigment epithelium (central serous retinopathy),…
• 2. メラノーマ：臨床的特徴および診断melanoma clinical features and diagnosis [show details]
  … Clinicians assess the probability that a pigmented lesion is a melanoma using a complex cognitive process that includes a combination of the following steps: visual analysis and pattern recognition, comparative …
• 3. 膀胱および泌尿器の転移性尿路上皮癌の治療treatment of metastatic urothelial cancer of the bladder and urinary tract [show details]
  …mouth . Ocular disorders, for example, central serous retinopathy or retinal pigment epithelial detachment resulting in visual field defect, were reported in 25 percent. This is the first time that a gene…
• 4. 腫瘍随伴性視覚症候群paraneoplastic visual syndromes [show details]
  …bilateral visual dimming that progresses over days to weeks. Symptoms may initially be unilateral but progress to both eyes within weeks. The triad of photosensitivity, ring scotomatous visual field… Optical coherence tomography reveals loss of the retinal pigment epithelium .…
• 5. 視覚的な解放性幻視（シャルル・ボネ症候群）visual release hallucinations charles bonnet syndrome [show details]
  … The Charles Bonnet syndrome (CBS) refers to symptoms of visual hallucinations that occur in patients with visual acuity loss or visual field loss. These are often called release hallucinations, reflecting …

English Journal

• Spectral tuning by opsin coexpression in retinal regions that view different parts of the visual field.

• Dalton BE1, Loew ER2, Cronin TW3, Carleton KL4.
• Proceedings. Biological sciences / The Royal Society.Proc Biol Sci.2014 Dec 22;281(1797). pii: 20141980. doi: 10.1098/rspb.2014.1980.
• Vision frequently mediates critical behaviours, and photoreceptors must respond to the light available to accomplish these tasks. Most photoreceptors are thought to contain a single visual pigment, an opsin protein bound to a chromophore, which together determine spectral sensitivity. Mechanisms of
• PMID 25377457

• Ion transport in pigmentation.

• Bellono NW1, Oancea EV2.
• Archives of biochemistry and biophysics.Arch Biochem Biophys.2014 Dec;563C:35-41. doi: 10.1016/j.abb.2014.06.020. Epub 2014 Jul 14.
• Skin melanocytes and ocular pigment cells contain specialized organelles called melanosomes, which are responsible for the synthesis of melanin, the major pigment in mammals. Defects in the complex mechanisms involved in melanin synthesis and regulation result in vision and pigmentation deficits, im
• PMID 25034214

• Loss of MITF expression during human embryonic stem cell differentiation disrupts retinal pigment epithelium development and optic vesicle cell proliferation.

• Capowski EE1, Simonett JM1, Clark EM1, Wright LS1, Howden SE2, Wallace KA1, Petelinsek AM1, Pinilla I3, Phillips MJ4, Meyer JS5, Schneider BL6, Thomson JA7, Gamm DM8.
• Human molecular genetics.Hum Mol Genet.2014 Dec 1;23(23):6332-44. doi: 10.1093/hmg/ddu351. Epub 2014 Jul 9.
• Microphthalmia-associated transcription factor (MITF) is a master regulator of pigmented cell survival and differentiation with direct transcriptional links to cell cycle, apoptosis and pigmentation. In mouse, Mitf is expressed early and uniformly in optic vesicle (OV) cells as they evaginate from t
• PMID 25008112

Japanese Journal

• A new subset of deutan colour vision defect associated with an L/M visual pigment gene array of normal order and -71C substitution in the Japanese population

• The journal of biochemistry 158(3), 197-204, 2015-09
• NAID 40020593497

• Noninvasive Vascular Imaging of Polypoidal Choroidal Vasculopathy by Doppler Optical Coherence Tomography

• Investigative ophthalmology & visual
• NAID 120005650361

• 中村賞受賞者 難治性網膜硝子体疾患における線維性増殖組織形成に対するSex hormoneの作用

• 山口医学 = Yamaguchi medical journal 64(1), 11-16, 2015-02
• NAID 120005601211

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★リンクテーブル★

リンク元	「視物質」「retinal pigment」
関連記事	「visual」「pigment」「pigmented」

「視物質」

　　[★]

英

visual substance

同

視色素 visual pigment

「retinal pigment」

　　[★]

• 網膜色素

関

visual pigment

「visual」

　　[★]

• adj.

• 視覚的な、視覚性の、視覚の、目視による

関

ocular、optic、vision、visually

　

「pigment」

　　[★]

• n.

• 色素、ピグメント

関

dye、dye stuff

　 　 　 　 　

「pigmented」

　　[★]

• adj.

• 色素性の

関

pigmentary