WordNet

acquire pigment; become colored or imbued
any substance whose presence in plant or animal tissues produces a characteristic color
color or dye with a pigment; "pigment a photograph"
dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)
a digestive juice secreted by the liver and stored in the gallbladder; aids in the digestion of fats (同)gall

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〈U〉〈C〉(おもに紛末の)絵の具,顔料 / 〈U〉色素
胆汁(たんじゅう) / かんしゃく;不きげん

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/09/17 10:21:18」(JST)

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Bilins, bilanes or bile pigments are biological pigments formed in many organisms as a metabolic product of certain porphyrins. Bilin (also called bilichrome) was named as a bile pigment of mammals, but can also be found in lower vertebrates, invertebrates, as well as red algae, green plants and cyanobacteria. Bilins can range in color from red, orange, yellow or brown to blue or green.

In chemical terms, bilins are linear arrangements of four pyrrole rings (tetrapyrroles). In human metabolism, bilirubin is a breakdown product of heme. Hydroxymethyl bilane is a major anabolic product, from the biosynthetic reaction of porphobilinogen (PBG) and uroporphyrinogen I synthase (known as porphobilinogen deaminase).

Examples of bilins are found in animals, and phycocyanobilin, the chromophore of the photosynthetic pigment phycocyanin in algae and plants. In plants, bilins also serve as the photopigments of the photoreceptor protein phytochrome. An example of an invertebrate bilin is micromatabilin, which is responsible for the green color of the Green Huntsman Spider, Micrommata virescens.^[1]

References

^ Oxford, G.S. & Gillespie, R.G. (1998). Evolution and Ecology of Spider Coloration. Annual Review of Entomology 43:619-643. doi:10.1146/annurev.ento.43.1.619 PMID 15012400

External links

Bilin at the US National Library of Medicine Medical Subject Headings (MeSH)

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UpToDate Contents

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1. 総胆管損傷の修復 repair of common bile duct injuries
2. Bile duct resection and reconstruction
3. 胆石の溶解療法 dissolution therapy for the treatment of gallstones
4. 総胆管診査 common bile duct exploration
5. 肝内胆管の消失および胆管消失症候群 hepatic ductopenia and vanishing bile duct syndrome

English Journal

Yinzhihuang oral liquid in the treatment of neonatal jaundice: a meta-analysis.

Zeng J1, Wang SJ2, Li YM1, Li HS1, Luo Q1, Huang YY1, Jiang Q1, Wang L1.
Pharmaceutical biology.Pharm Biol.2017 Dec;55(1):554-559.
PMID 27937684

GC-MS analysis and hepatoprotective activity of the n-hexane extract of Acrocarpus fraxinifolius leaves against paracetamol-induced hepatotoxicity in male albino rats.

Abd El-Ghffar EA1, El-Nashar HA2, Eldahshan OA2, Singab AN2.
Pharmaceutical biology.Pharm Biol.2017 Dec;55(1):441-449.
PMID 27937037

Black Pigment Gallstone-inspired Platinum-chelated Bilirubin Nanoparticles for Combined Photoacoustic Imaging and Photothermal Therapy of Cancers.

Lee D, Kim J, Lee Y, Lee S, Miao W, Kim H, Min JJ, Jon S1.
Angewandte Chemie (International ed. in English).Angew Chem Int Ed Engl.2017 Sep 4. doi: 10.1002/anie.201707137. [Epub ahead of print]
PMID 28869355