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Dive into the research topics where Jack Penn is active.

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Featured researches published by Jack Penn.


British Journal of Cancer | 1955

Possible significance of abnormal dermal collagen and of epidermal regeneration in the pathogenesis of skin cancers.

Theodore Gillman; Jack Penn; Doris Bronks; Marie Roux

ImagesFigs. 1-6Figs. 7-12


British Journal of Plastic Surgery | 1967

The reconstruction of the nose.

Jack Penn

Summary This paper deals with the technique of rhinoplasty: (1) The rhinoplasty of repair including the reconstruction of the completely destroyed nose in the adult and in the child, and the reconstruction of partial nasal losses utilising free grafts. (2) The rhinoplasty of correction indicating the necessity of facial balance in assessing a final result. This requires not only corrective processes to the nose, but very often requires the implantation of a graft to the chin.


British Journal of Cancer | 1956

Actions of cortisone on cutaneous and pulmonary neoplasms induced in mice by cutaneous applications of methylcholanthrene.

Theodore Gillman; M. Hathorn; Jack Penn

Actions of Cortisone on Cutaneous and Pulmonary Neoplasms Induced in Mice by Cutaneous Applications of Methylcholanthrene


Cellular and Molecular Life Sciences | 1955

Implications of epidermal-dermal relations following injury for understanding association of carcinogenesis with hair regeneration or scars

Th. Gillman; Jack Penn; Doris Bronks; Marie Roux

Während des normalen Heilungsvorganges in Hautverletzungen wurde nachgewiesen, dass das Epithel die unterliegende traumatisierte Cutis « überfällt ». Normalerweise werden solche « überfallenden » Epithelsporen entweder durch Fremdkörperreaktion des Bindegewebes eliminert, oder aber eine « kompetente » Cutis bewirkt die Bildung von Talgdrüsen oder neuer Haarfollikel. In Anbetracht der engen Korrelation zwischen Haarbildung, Narben und Carcinogenese wird auf Grund der histologischen Befunde der Autoren und aus einer Übersicht der einschlägigen embryologischen Forschungsliteratur gefolgert, dass das endgültig massgebliche Verhalten solcher « überfallenden » pluripoten tialen Epithelsporen während des Wundheilungsvorganges teilweise von der Natur der epikutanen Überfälle abhängig ist, und vornehmlich von der Reaktivität der unterliegenden Cutis. Epikutane Neoplasie könnte infolgedessen hauptsächlich als Ergebnis des Versagens einer beschädigten Cutis betrachtet werden, die weder die überfallende Epidermis eliminiert, noch die Haarpapillen differenziert, in ihrer Reaktion gegen überfallende, epidermale Sporen oder neue Haar-Anlagen, die während normalem Heilungsvorgang gebildet wurden; dies gilt für jedwede Verletzung, die chemisch oder physisch verursacht wurde. Überfallende epidermale Sporen könnten zuerst verhornte Zysten bilden, in welchen späterhin neoplastische Veränderungen in Erscheinung treten.


British Journal of Plastic Surgery | 1965

THE CHALLENGE OF AFRICA.

Jack Penn

Inevitably, reading is one of the requirements to be undergone. To improve the performance and quality, someone needs to have something new every day. It will suggest you to have more inspirations, then. However, the needs of inspirations will make you searching for some sources. Even from the other people experience, internet, and many books. Books and internet are the recommended media to help you improving your quality and performance.


British Journal of Cancer | 1956

Apparent paradoxical effects of lanolin on induction of skin and lung tumours by topically applied methylcholanthrene.

Theodore Gillman; M. Hathorn; Jack Penn

Apparent Paradoxical Effects of Lanolin on Induction of Skin and Lung Tumours by Topically Applied Methylcholanthrene


British Journal of Plastic Surgery | 1953

Reactions of healing wounds and granulation tissue in man to auto-Thiersch, autodermal, and homodermal grafts: with an analysis of the implications of the phenomena encountered for an understanding of the behaviour of grafted tissue and the genesis of scars, keloids, skin carcinomata, and other cutaneous lesions.

Theodore Gillman; Jack Penn; Doris Bronks; Marie Roux


British Journal of Surgery | 1955

A Re-examination of certain aspects of the histogenesis of the healing of cutaneous wounds A preliminary report†

Theodore Gillman; Jack Penn; Doris Bronks; Marie Roux; Phyllis Bilbrough; Patricia R. Low; Adele Hart


Nature | 1954

Staining reactions of elastic fibres with special reference to "elastotic degenerations' in the human skin.

Theodore Gillman; Jack Penn; Doris Bronks; Marie Roux


British Journal of Plastic Surgery | 1953

Complication following late manipulation of impacted fracture of the malar bone

Jack Penn; Edward Epstein

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