関: calcium pyrophosphate dihydrate

WordNet

a white metallic element that burns with a brilliant light; the fifth most abundant element in the earths crust; an important component of most plants and animals (同)Ca, atomic number 20
a salt or ester of pyrophosphoric acid

PrepTutorEJDIC

『カルシウム』(金属元素;化学記号は『Ca』)

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/11/14 18:47:53」(JST)

wiki en

Calcium pyrophosphate (Ca₂P₂O₇) is a chemical compound that can be formed by the reaction of pyrophosphoric acid and a calcium base or by strongly heating calcium phosphate or calcium ammonium phosphate.

It is commonly used as a mild abrasive agent in toothpastes.

Calcium pyrophosphate crystals deposited in cartilage are responsible for the severe joint pain in cases of calcium pyrophosphate deposition disease (pseudo gout) whose symptoms are similar to those of gout.^[1]

References

^ "Calcium Pyrophosphate Deposition Disease". Medscape.

This inorganic compound–related article is a stub. You can help Wikipedia by expanding it.

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

1. ピロリン酸カルシウム結晶沈着症の臨床症状および診断 clinical manifestations and diagnosis of calcium pyrophosphate crystal deposition disease
2. ピロリン酸カルシウム結晶沈着症の治療 treatment of calcium pyrophosphate crystal deposition disease
3. ピロリン酸カルシウム結晶沈着症の発症および病因 pathogenesis and etiology of calcium pyrophosphate crystal deposition disease
4. 変形性関節症の診断および分類 diagnosis and classification of osteoarthritis
5. 思春期におけるカルシウムの所要量 calcium requirements in adolescents

English Journal

Prevalence of sternoclavicular joint calcium pyrophosphate dihydrate crystal deposition on computed tomography.

Shirazian H1, Chang EY2, Wolfson T3, Gamst AC3, Chung CB2, Resnick DL3.
Clinical imaging.Clin Imaging.2014 July - August;38(4):380-383. doi: 10.1016/j.clinimag.2014.02.016. Epub 2014 Mar 6.
We sought to determine the prevalence of sternoclavicular (SC) joint calcium pyrophosphate dihydrate (CPPD) crystal deposition and its association with age, osteoarthritis, and atlantoaxial CPPD crystal deposition. In 209 consecutive patients, computed tomographic examinations of the cervical spine
PMID 24642252

Tophaceous calcium pyrophosphate dihydrate deposition disease of the knee mimicking an aggressive soft tissue tumour.

Watura C, Saifuddin A.
BMJ case reports.BMJ Case Rep.2014 Jun 10;2014. pii: bcr2014203998. doi: 10.1136/bcr-2014-203998.
Calcium pyrophosphate crystal deposition disease (CPPD), previously pseudogout, is the second most common crystal arthropathy after gout. There is increased radiographic prevalence associated with age, trauma and several metabolic disorders. Tophaceous CPPD (T-CPPD) is a rare form of CPPD which, tho
PMID 24916978

Scapholunate advanced collapse: a pictorial review.

Tischler BT1, Diaz LE, Murakami AM, Roemer FW, Goud AR, Arndt WF 3rd, Guermazi A.
Insights into imaging.Insights Imaging.2014 Jun 3. [Epub ahead of print]
Scapholunate advanced collapse (SLAC) is the most common cause of osteoarthritis involving the wrist. Along with clinical investigation, radiological studies play a vital role in the diagnosis of SLAC wrist. Given that the osteoarthritic changes that are seen with SLAC occur in a predictable progres
PMID 24891066

Japanese Journal

滑膜性骨軟骨腫症と関節円板の石灰化を併発した顎関節部ピロリン酸カルシウム結晶沈着症の1例

片山良子,栗田賢一,福田幸太 [他]
日本口腔外科学会雑誌 58(6), 366-370, 2012-06-00
NAID 40019370332

Crowned dens syndromeの画像診断 (特集脳神経・頭頸部最新情報2012)

藤村幹彦,久保聡一,玄正祥代 [他]
臨床放射線 57(3), 349-355, 2012-03-00
NAID 40019227831

顎関節下関節腔に生じた偽痛風の1例

山本哲彰,宮本郁也,石川文隆 [他],山下善弘,山内健介,高橋哲
日本口腔外科学会雑誌 57(11), 601-605, 2011-11-20
NAID 10030273094

Related Pictures

★リンクテーブル★

リンク元	「ピロリン酸カルシウム」
拡張検索	「calcium pyrophosphate dihydrate deposition」「calcium pyrophosphate dihydrate deposition disease」「calcium pyrophosphate dihydrate」
関連記事	「pyrophosphate」「calcium」

「ピロリン酸カルシウム」

Calcium pyrophosphate
	IUPAC name Calcium diphosphate
	Other names Diphosphoric acid, calcium salt (1:2)
Identifiers
CAS number	7790-76-3
PubChem	24632
ChemSpider	23034
UNII	X69NU20D19
MeSH	Calcium+pyrophosphate
ChEBI	CHEBI:32598
Jmol-3D images	Image 1
	SMILES [Ca+2].[Ca+2].[O-]P([O-])(=O)OP([O-])([O-])=O ;
	InChI InChI=1S/2Ca.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2+2;/p-4 ; Key: JUNWLZAGQLJVLR-UHFFFAOYSA-J InChI=1/2Ca.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2+2;/p-4; Key: JUNWLZAGQLJVLR-XBHQNQODAN ;
Properties
Molecular formula	Ca2O7P2
Molar mass	254.053 g/mol
Appearance	White powder
Density	3.09 g/cm3
Melting point	1,353 °C (2,467 °F; 1,626 K)
Solubility in water	insoluble
Solubility	soluble in HCl, nitric acids
Refractive index (nD)	1.585
Hazards
EU Index	Not listed
NFPA 704	0 2 0
Flash point	Non-flammable
Related compounds
Other anions	Calcium phosphate
Other cations	Magnesium pyrophosphate; Sodium pyrophosphate
	Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
	(verify) (what is: /?)
	Infobox references