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  2. Keratin - Wikipedia

    en.wikipedia.org/wiki/Keratin

    During the process of epithelial differentiation, cells become cornified as keratin protein is incorporated into longer keratin intermediate filaments. Eventually the nucleus and cytoplasmic organelles disappear, metabolism ceases and cells undergo a programmed death as they become fully keratinized.

  3. Keratinocyte - Wikipedia

    en.wikipedia.org/wiki/Keratinocyte

    Keratinization is part of the physical barrier formation (cornification), in which the keratinocytes produce more and more keratin and undergo terminal differentiation. The fully cornified keratinocytes that form the outermost layer are constantly shed off and replaced by new cells.

  4. Stratum spinosum - Wikipedia

    en.wikipedia.org/wiki/Stratum_spinosum

    Keratinization begins in the stratum spinosum, [5] although the actual keratinocytes begin in the stratum basale. [4] They have large pale-staining nuclei as they are active in synthesizing fibrillar proteins, known as cytokeratin, which build up within the cells aggregating together forming tonofibrils. The tonofibrils go on to form the ...

  5. Keratohyalin - Wikipedia

    en.wikipedia.org/wiki/Keratohyalin

    Keratohyalin is a protein structure found in cytoplasmic granules of the keratinocytes in the stratum granulosum of the epidermis.Keratohyalin granules (KHG) mainly consist of keratin, profilaggrin, [1] loricrin [2] and trichohyalin proteins which contribute to cornification or keratinization, the process of the formation of epidermal cornified cell envelope.

  6. Human skin - Wikipedia

    en.wikipedia.org/wiki/Human_skin

    This process is called keratinization and takes place within weeks. It was previously believed that the stratum corneum was "a simple, biologically inactive, outer epidermal layer comprising a fibrillar lattice of dead keratin". [9] It is now understood that this is not true, and that the stratum corneum should be considered to be a live tissue ...

  7. Hair keratin - Wikipedia

    en.wikipedia.org/wiki/Hair_keratin

    However, this intricate process can be simplified into a few highly preserved gene families. In cortical keratinocytes, distinct patterns of keratin gene expression are evident, indicating the presence of different hierarchical transcription processes among various cell types.

  8. 12 Best Vitamins for Hair Growth - AOL

    www.aol.com/12-best-vitamins-hair-growth...

    2. Vitamin B12. One of eight B-complex vitamins, vitamin B12 is found naturally in some types of fish, red meat and fortified foods.It plays a key role in central nervous system function, DNA ...

  9. Lamellar bodies - Wikipedia

    en.wikipedia.org/wiki/Lamellar_bodies

    Red arrows indicate secreted lamellar bodies, and green arrows indicate lamellar bodies in the cytoplasm. Scale bar = 200 nm. In cell biology, lamellar bodies (otherwise known as lamellar granules, membrane-coating granules (MCGs), keratinosomes or Odland bodies) are secretory organelles found in type II alveolar cells in the lungs, and in keratinocytes in the skin.