Sudan stain

スダン染色

WordNet

1. (microscopy) a dye or other coloring material that is used in microscopy to make structures visible
2. color for microscopic study; "The laboratory worker dyed the specimen"
3. color with a liquid dye or tint; "Stain this table a beautiful walnut color"; "people knew how to stain glass a beautiful blue in the middle ages"
4. produce or leave stains; "Red wine stains the table cloth"
5. a soiled or discolored appearance; "the wine left a dark stain" (同)discoloration, discolouration
6. a republic in northeastern Africa on the Red Sea; achieved independence from Egypt and the United Kingdom in 1956 (同)Republic of the Sudan, Soudan
7. a region of northern Africa to the south of the Sahara and Libyan deserts; extends from the Atlantic to the Red Sea (同)Soudan
8. marked or dyed or discolored with foreign matter; "a badly stained tablecloth"; "tear-stained cheeks"
9. having a coating of stain or varnish (同)varnished
10. the act of spotting or staining something (同)spotting, maculation
11. (histology) the use of a dye to color specimens for microscopic study

PrepTutorEJDIC

1. (…で)…‘を'『汚す』,‘に'しみをつける《+『名』+『with』+『名』》 / 〈ガラス・木材・布など〉‘に'『着色する』 / (…で)〈人格・名声など〉‘を'汚す,‘に'傷をつける《+『名』+『with』+『名』》 / 汚れる,しみがつく / 〈C〉〈U〉(…についた)『しみ』,汚れ《+『on』+『名』》 / 〈U〉〈C〉着色剤,染料 / 〈C〉(人格・名声などに対する)汚点,傷《+『on』(『upon』)+『名』》
2. アフリカ北東部の共和国;首都Khartoum / アフリカのサハラ砂ばくの南部地方名

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/07/31 08:57:11」(JST)

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[Wiki en表示]

Sudan stains and Sudan dyes are synthetic organic compounds that are used as dyes for various plastics and are also used to stain sudanophilic biological samples, usually lipids. Sudan II, Sudan III, Sudan IV, Oil Red O, and Sudan Black B are important members of this class of compounds (see images below).

Staining

Sudan dyes have high affinity to fats, therefore they are used to demonstrate triglycerides, lipids, and lipoproteins. Alcoholic solutions of Sudan dyes are usually used, however pyridine solutions can be used in some situations as well.

Sudan stain test is often used to determine the level of fecal fat to diagnose steatorrhea. A small sample is dissolved in water or saline, glacial acetic acid is added to hydrolyze the insoluble salts of fatty acids, a few drops of alcoholic solution of Sudan III are added, the sample is spread on a microscopic slide, and heated twice to boil. Normally a stool sample should show only a few drops of red-orange stained fat under the microscope. The method is only semiquantitative but, due to its simplicity, it is used for screening.

Dyeing

Since they are characteristically "oil-and fat-soluble," Sudan dyes are also useful for dying plastics and fabrics. Sudan dyes I-IV and Sudan Red G consist of arylazo-substituted naphthols. Such compounds are known to exist as a pair of tautomers:

Examples

• Selected Sudan dyes
• Sudan I

• Sudan II

• Sudan III

• Sudan IV

• Sudan Black B

• Sudan Red G

Safety

Some spices exported from Asia have been adulterated with Sudan dyes, especially Sudan I and Sudan III, to enhance their colors. This finding has led to controversy because some Sudan dyes are carcinogenic in rats.

References

UpToDate Contents

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• 1. 吸収不良の臨床的特徴および診断 clinical features and diagnosis of malabsorption
• 2. 急性前骨髄球性白血病の臨床症状、病理学的特徴、および診断 clinical manifestations pathologic features and diagnosis of acute promyelocytic leukemia in adults
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• 4. 小児における慢性膵炎の臨床症状および診断 clinical manifestations and diagnosis of chronic pancreatitis in children
• 5. 心疾患を伴うファブリー病の臨床的特徴、診断、およびマネージメント clinical features diagnosis and management of patients with fabry disease with cardiac disease

English Journal

• Non-choroidal yellow melanoma showing positive staining with Sudan Black consistent with the presence of lipofuscin: a case report.

• Penouil MH1, Gourhant JY2, Segretin C3, Weedon D4, Rosendahl C5.
• Dermatology practical & conceptual.Dermatol Pract Concept.2014 Apr 30;4(2):45-9. doi: 10.5826/dpc.0402a09. eCollection 2014.
• A case of a predominantly yellow primary superficial spreading melanoma arising on the back of a 44-year-old woman is presented. Possible causes of the clinical and dermatoscopic yellow color are discussed. Staining with the histochemical stain, Sudan Black, revealed a differential uptake compared t
• PMID 24855574

• [Forensic medical implications of histomorphological changes in the bone and cartilage tissues under effect of radiation].

• Osipenkova-Vichtomova TK.
• Sudebno-meditsinskaia ekspertiza.Sud Med Ekspert.2013 Jul-Aug;56(4):16-21.
• The objective of the present work was to study roentgenological, microscopic, and histomorphological changes in the bone and cartilage tissues under effect of different doses of gamma-ray radiation from Gammatron-2 (GUT Co 400) and betatron bremsstrahlung radiation (25 MeV). The total radiation dose
• PMID 24428051

• Anatomy and development of the endodermis and phellem of Quercus suber L. roots.

• Machado A1, Pereira H, Teixeira RT.
• Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada.Microsc Microanal.2013 Jun;19(3):525-34. doi: 10.1017/S1431927613000287. Epub 2013 Apr 4.
• Quercus suber L. has been investigated with special attention to the stem bark and its cork formation layer, but excluding the roots. Roots are the location of infection by pathogens such as Phytophthora cinnamomi responsible for the tree's sudden death. It is widely accepted that suberin establishe
• PMID 23551860

Japanese Journal

• 悪性リンパ腫のギムザ染色における細胞質内空胞の検討

• 日本臨床細胞学会雑誌 55(4), 215-223, 2016
• NAID 130005421075

• 乳糜腹水を伴った絞扼性イレウスの１例

• 日本臨床外科学会雑誌 72(8), 2056-2060, 2011
• NAID 130004518043

• ブリの好中球の形態学的および細胞化学的特徴

• 水産大学校研究報告 58(2), 101-111, 2009-12
• NAID 120005848105

Related Links

• Sudan Stain - an overview | ScienceDirect Topics

Qualitative fecal fat excretion or stain for fat globules (Sudan stain) can be a quick and simple way to screen for fat malabsorption. 57 If properly performed, a Sudan stain on a spot sample of stool can detect more than 90% of 58

• What Is a Sudan Stain? (with pictures)

A sudan stain makes it possible for pathologists to spot fat in a sample. Fecal Sudan stain tests are used to check for signs of steatorrhea, or fats in the feces. This can indicate that a patient has a malabsorption problem, or a disorder of the pancreas. Testing can also be used with blood samples in patients with suspected blood disorders.

• Sudan Black B Stain : Purpose, Principle, Procedure and ...

Sudan Black B Stain : Purpose, Principle, Procedure and Interpretation November 18, 2018 Dhurba Giri CYTOPATHOLOGY , HEMATOLOGY 1 Sudan Black B (SBB) is a fat soluble dye which has very high affinity for neutral fats and lipids .

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★リンクテーブル★

リンク元	「スダン染色」
関連記事	「stain」

「スダン染色」

　　[★]

英

Sudan stain

• スダンIII染色
• スダンブラックB染色

「stain」

　　[★]

• n.

• 染色

• v.

• 染色する

関

coloring agent、dye、staining、tissue stain