keratinization


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keratinization

 [ker″ah-tin″ĭ-za´shun]
the development of or conversion into keratin.

ker·a·tin·i·za·tion

(ker'ă-tin'i-zā'shŭn),
Keratin formation or development of a horny layer; may also apply to premature formation of keratin.
Synonym(s): cornification

keratinization

/ker·a·tin·i·za·tion/ (ker″ah-tin″ĭ-za´shun) conversion into keratin.

keratinization

(kĕr′ə-tə-nĭ-zā′shən)
n.
The process by which vertebrate epithelial cells become filled with keratin protein filaments, die, and form tough, resistant structures such as skin, nails, and feathers.

keratinization

[-īzā′shən]
Etymology: Gk, keras + L, izein, to cause
a process by which epithelial cells lose their moisture and are replaced by horny tissue.

ker·a·tin·i·za·tion

(ker'ă-tin-ī-zā'shŭn)
Keratin formation or development of a horny layer; may also apply to premature formation of keratin.
Synonym(s): cornification.

keratinization

The formation of, or conversion into, keratin. This normally occurs to a limited degree in the outer layers of the skin, but is especially prominent when skin is exposed to constant localized pressure. Corns and callosities are areas of keratinization. Also known as cornification or hornification.

keratinization

enzymic conversion of epidermal skin cells to keratin

ker·a·tin·i·za·tion

(ker'ă-tin-ī-zā'shŭn)
Keratin formation or development of a horny layer.
Synonym(s): cornification.

keratinization (ker´ətin´izā´shən),

n the process of becoming keratinized.

keratinization

the development of or conversion into keratin.

keratinization defects
include hyperkeratosis, hypokeratosis, dyskeratosis. Diseases in which abnormal keratinization is an important feature include seborrhea, vitamin a responsive dermatosis, nasodigital hyperkeratosis, acne, parapsoriasis.

Patient discussion about keratinization

Q. skins does excrete oil and keratin what exactly is the whitish cape up that you can squeeze out from underskin

A. It sounds like you refer to sebum, an oily substance secreted by (how surprising :) ) sebaceus glands attached to the hair root. It's important for the skin, although abnormal secretion of it may cause diseases such as acne.

You may read more here:
http://en.wikipedia.org/wiki/Sebum#Sebum

More discussions about keratinization
References in periodicals archive ?
The mere presence of densely eosinophilic cytoplasm or sharp intercytoplasmic borders in the absence of frank keratinization, pearls, or intercellular bridges is insufficient for the diagnosis of squamous cell carcinoma.
Avian feather development: relationships between morphogenesis and keratinization.
16] It is characterized by the presence of keratinization or intercellular bridges.
Even in resection specimens, in poorly differentiated tumors that have a suggestion of squamous morphology (Figure 8, A) but lack clear squamous morphology, such as keratinization, pearls, or bridges, immunohistochemistry may be indicated with an adenocarcinoma marker such as thyroid transcription factor-1 (TTF-1) (Figure 8, C) and a squamous marker, such as p63 or the recently described p40, which is an isomer of p63 with greater specificity for squamous cell carcinoma.
The keratotic variety is remarkable for its abrupt, central keratinization.
Historically, several candidate systems are available: a vaginal cornification and keratinization response (6), a water imbibition response of the uterus after a single dose of the test compound (7), and a uterine tissue weight increase after several doses of the test compound (8-10).
It has also been shown to promote the growth of new connective tissue, keratinization and regeneration of epidermis, as well as eliminate pimples on the face.
D, In a few foci, the tumor cells had a very epithelioid appearance with clusters of squamoid cells and occasional keratinization (hematoxylin-eosin, original magnifications34 [A] and340 [B through D]).
Blanchet-Bardon C, Nazzaro V, Rognin C et al: Acitretin in the treatment of severe disorders of keratinization.
Intraoperative frozen section showed no malignant cells and microscopic histopathology confirmed a benign epidermoid cyst with stratified squamous epithelium and keratinization.
Acantholytic dyskeratosis results from the dissociation of intercellular bridges and aberrant keratinization.