Thymusstudien

Hart, Carl

doi:10.1007/bf01989186

Cited by 12 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The replacement of myofibrils by prekeratin is usually interpreted as degeneration. Keratinization of Hassall's corpuscles was the topic of much discussion since a vague remark by Virchow in 1851 (Hammar 1909), but specific stains for keratin were not available (Hart 1914). Transformation of filaments into homogeneous masses was confirmed by electron microscopy (Ito and Hirshimo 1966).…”

Section: Myosin and Prekeratin In Epithelial Cellsmentioning

confidence: 97%

A comparative study of myosins and prekeratin in epithelial cells of methacarn-fixed tissues

et al. 1985

View full text Add to dashboard Cite

Around the turn of the century, tonofibrils and contractile myofibrils were observed within the same cells. These findings have been largely forgotten. To clarify the topical relations of these proteins in epithelial cells, duplicate sections of methacarn-fixed human and canine tissues were treated with the tannic acid-phosphomolybdic acid (TP)-Levanol Fast Cyanine 5RN reaction for myosins and the PAP technic for prekeratin, respectively. In bronchi, lingual and sweat glands, liver and pancreas, myosin was confined to the terminal bar-terminal web system, including pericanalicular layers. Prekeratin occurred throughout the epithelium of bronchi and ducts; secretory cells showed little or no reaction. Observations on myosin in kidney confirmed data by Harper et al. (1970). The PAP technic colored transitional epithelium and collecting tubules intensely; convoluted tubules did not react. Staining of segments of Henle's loops varied from case to case. Both reactions colored thymic epithelial cells. In myoid cells of Hassall's corpuscles myosin was gradually replaced by prekeratin and keratin. Basal cells of epididymis reacted strongly with the PAP technic, but did not contain myosin. Prekeratin is apparently identical with epidermin, whose composition and structure were well known in the 1950's. Epidermin undergoes chemical changes as cells move from the stratum basale to the stratum corneum. According to DAKO, the antibodies used in this study were prepared with prekeratin extracted from stratum corneum. Data in the literature and observations in this investigation indicate that some samples of antibodies do not react with all tonofilaments.(ABSTRACT TRUNCATED AT 250 WORDS)

show abstract

Section: Myosin and Prekeratin In Epithelial Cellsmentioning

confidence: 97%

A comparative study of myosins and prekeratin in epithelial cells of methacarn-fixed tissues

et al. 1985

View full text Add to dashboard Cite

show abstract

Review of the Literature of the Past Two Years on the Organs of Internal Secretion

Park¹

1916

Arch Pediatr Adolesc Med

View full text Add to dashboard Cite

The review which follows is intended to cover those parts of the literature on internal secretions of the past two years which have seemed to the writer to be especially important or interesting. It was found impossible to master the entire literature that has sprung up about this fruitful subject, much less to include it in its entirety in a review, so that some important work may receive no mention. Cer¬ tain organs known to have an internal secretion, the genital glands and pancreas, and others thought by some to possess an internal secretory function, such as the kidney, have been purposely omitted from consideration for lack of time and space for adequate treatment. On the other hand, the pineal and carotid glands, which have been much exploited recently, have been discussed in some detail, although no certainty exists that they are organs of internal secretion. Pende's "new organ of internal secretion" has been included. 1. Thomas, E.: Beitr. z. path. Anat. u. z. allg. Path., L, 283; cited by Pappenheimer.

show abstract

Embryology of the Mammalian Thymus

Immunological Aspects of Neoplasia — The Role of the Thymus

View full text Add to dashboard Cite

Thymusstudien

Cited by 12 publications

References 0 publications

A comparative study of myosins and prekeratin in epithelial cells of methacarn-fixed tissues

A comparative study of myosins and prekeratin in epithelial cells of methacarn-fixed tissues

Review of the Literature of the Past Two Years on the Organs of Internal Secretion

Embryology of the Mammalian Thymus

Contact Info

Product

Resources

About