tarsal gland

瞼板腺

関

meibomian gland

WordNet

1. of or relating to or near the tarsus of the foot; "tarsal bones"
2. any bone of the tarsus (同)tarsal_bone
3. any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream (同)secretory organ, secretor, secreter

PrepTutorEJDIC

1. 足首の / 足根骨
2. (生物体内の)腺(せん)

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/08/19 10:43:49」(JST)

wiki en

[Wiki en表示]

Meibomian gland
Front of left eye with eyelids separated to show medial canthus and openings of tarsal (meibomian) glands.
Latin	glandulae tarsales
Gray's	subject #227 1026
MeSH	Meibomian+glands

The meibomian glands (or tarsal glands) are a special kind of sebaceous gland at the rim of the eyelids inside the tarsal plate, responsible for the supply of meibum, an oily substance that prevents evaporation of the eye's tear film. Meibum prevents tear spillage onto the cheek, trapping tears between the oiled edge and the eyeball, and makes the closed lids airtight. There are approximately 50 glands on the upper eyelids and 25 glands on the lower eyelids. The glands are named after Heinrich Meibom (1638–1700), a German physician.

Meibum

Lipids

Lipids are the major components of meibum (also known as "meibomian gland secretions"). The term "meibum" was originally introduced by Nicolaides et al. in 1981. The biochemical composition of meibum is extremely complex and very different from that of sebum. Lipids are universally recognized as major components of human and animal meibum. Recently, an update on the composition of human meibum and on the structures of various positively identified meibomian lipids was published. Currently, the most sensitive and informative approach to lipidomic analysis of meibum is mass spectrometry in combination with liquid chromatography.

Proteins

In humans, more than 90 different proteins have been identified in meibomian gland secretions.

Dysfunction

Dysfunctional meibomian glands often cause dry eyes, one of the more common eye conditions. They may also cause blepharitis, as the dry eyeball rubs off small pieces of skin from the eyelid, which may get infected. Inflammation of the meibomian glands (also known as meibomitis, meibomian gland dysfunction, or posterior blepharitis) causes the glands to be obstructed by thick waxy secretions. Besides leading to dry eyes, the obstructions can be degraded by bacterial lipases, resulting in the formation of free fatty acids, which irritate the eyes and sometimes cause punctate keratopathy.

See also

• List of specialized glands within the human integumentary system

References

External links

• synd/541 at Who Named 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. 唾液腺腫瘍：疫学、診断、評価、および病期分類 salivary gland tumors epidemiology diagnosis evaluation and staging
• 2. 唾液腺腫瘍：限局性疾患の治療 salivary gland tumors treatment of locoregional disease
• 3. 唾石症 salivary gland stones
• 4. シェーグレン症候群の臨床症状：外分泌腺障害 clinical manifestations of sjogrens syndrome exocrine gland disease
• 5. シェーグレン症候群の診断および分類 diagnosis and classification of sjogrens syndrome

English Journal

• Ex vivo heat retention of different eyelid warming masks.

• Lacroix Z1, Léger S1, Bitton E2.
• Contact lens & anterior eye : the journal of the British Contact Lens Association.Cont Lens Anterior Eye.2015 Jun;38(3):152-6. doi: 10.1016/j.clae.2015.01.005. Epub 2015 Feb 27.
• PURPOSE: Meibomian gland dysfunction (MGD) appears to be the most common cause of evaporative dry eye, in which the meibum has an altered chemical structure that increases its melting point. Eyelid warming masks slowly transfer heat, preferably between 40 and 45°C to the inner meibomian glands, in
• PMID 25735560

• Evaluation of dry eye and meibomian gland dysfunction with meibography in patients with rosacea.

• Palamar M1, Degirmenci C, Ertam I, Yagci A.
• Cornea.Cornea.2015 May;34(5):497-9. doi: 10.1097/ICO.0000000000000393.
• PURPOSE: To evaluate the dry eye tests and meibography of patients with ocular rosacea.METHODS: Thirty-six eyes of 18 patients with ocular rosacea (group 1) and 38 eyes of 19 healthy individuals (group 2) were enrolled. Besides full-eye examination, corneal and conjunctival fluorescein staining and
• PMID 25826323

• Increased Tear Fluid Production as a Compensatory Response to Meibomian Gland Loss: A Multicenter Cross-sectional Study.

• Arita R1, Morishige N2, Koh S3, Shirakawa R4, Kawashima M5, Sakimoto T6, Suzuki T7, Tsubota K8.
• Ophthalmology.Ophthalmology.2015 May;122(5):925-33. doi: 10.1016/j.ophtha.2014.12.018. Epub 2015 Jan 24.
• PURPOSE: To compare tear film parameters as well as meibomian gland morphologic features and function among patients with meibomian gland dysfunction (MGD), those with non-Sjögren syndrome aqueous-deficient dry eye (non-SS ADDE), those with non-SS ADDE and MGD, and normal subjects.DESIGN: Multicent
• PMID 25626757

Japanese Journal

• Identification of 20-hydroxyecdysone-inducible Genes from Larval Brain of the Silkworm, Bombyx mori, and Their Expression Analysis

• Zoological science 29(5), 333-339, 2012-05
• NAID 120004140854

• 低い総線量の放射線治療により症状が軽減した下垂体性副腎皮質機能亢進症の犬の1例

• 獣医臨床皮膚科 18(1), 23-27, 2012
• NAID 130004937853

• 犬における腎細胞癌の播種性転移に伴う肥大性骨症 : 症例報告(病理学)

• The journal of veterinary medical science 69(2), 209-212, 2007-02-25
• NAID 110006201241

Related Links

• Tarsal gland | definition of tarsal gland by Medical dictionary

tarsal gland n. Any of the branched sebaceous glands located in the tarsus of the eyelid. tarsal gland any one of numerous modified sebaceous glands on the ... Tarsal: When I began deer hunting there was a widespread ...

• Tarsal Glands: What We Know - Quality Deer Management ...

The tarsal gland, arguably the most important gland in deer communication, is found on bucks and does. Each hair is associated with an enlarged sebaceous or “fat” gland that secretes an oily material that coats the hair.

---

★リンクテーブル★

リンク元	「瞼板腺」
関連記事	「tarsal」

「瞼板腺」

　　[★]

英

tarsal gland

関

マイボーム腺 meibomian gland

眼瞼縁の分泌腺

• 皮脂腺(ツァイス腺)：睫毛毛根部に存在
• アポクリン腺(モル腺)：
• 瞼板腺、マイボーム線：睫毛よりも眼球側にある

臨床関連

• 霰粒腫：瞼板腺の慢性肉芽性炎症で、瞼板腺の分泌物貯留によって起こる。

「tarsal」

　　[★]

• 足根の、瞼板の

関

tarsi、tarsus