L. Alibardi
University of Bologna
5Publications
4H-index
48Citations
Publications 5
Newest
Published on Mar 1, 2012in Italian Journal of Zoology 0.60
L. Alibardi4
Estimated H-index: 4
(University of Bologna)
Abstract The ultrastructural immunolocalization of loricrin, a major protein of the cell corneous envelope is known for the epidermis of monotremes and placental mammals, but not in the soft epidermis of marsupials. This information would allow a definitive generalization on the role of loricrin in the process of keratinization in mammalian epidermis. The present study on the hairy epidermis of the red kangaroo has shown that the immunolabelling for this protein is diffuse in the upper spinosus ...
2 Citations Source Cite
Published on Dec 9, 2010in Italian Journal of Zoology 0.60
L. Alibardi4
Estimated H-index: 4
(University of Bologna)
Abstract An ultrastructural, immunocytochemical and electrophoretic study on keratinocytes forming the corneous layer of claws in the frog Xenopus laevis has been conducted in order to analyze the process of cornification in amphibians and compare it with cornification in amniote claws. During claw differentiation pre-corneous keratinocytes accumulate dense corneous bundles containing keratin filaments and inter-keratin material. Ribosomes are associated with keratin bundles, suggesting that neo...
9 Citations Source Cite
Published on Sep 1, 2009in Italian Journal of Zoology 0.60
L. Alibardi4
Estimated H-index: 4
(University of Bologna)
The present microscopic study on follicles of regenerating feathers describes the pattern of morphogenesis responsible for the formation of symmetric and asymmetric feathers, filoplumes and bristles. Barb ridges are generated in the ventral locus of the follicle and merge into a rachis located in the dorsal side after helicoidal growth along the ramogenic collar. Asymmetric feathers result from the elongation of rami of larger size on one side with respect to the opposite side of the follicle be...
7 Citations Source Cite
Published on Dec 1, 2008in Italian Journal of Zoology 0.60
L. Alibardi4
Estimated H-index: 4
(University of Bologna)
An ultrastructural and immunocytochemical study on developing lizard claws has been done. Claws originate from an epidermal thickening covering the tip of digits under which mesenchymal cells aggregate. The outer side of the dorsal terminal scale of a digit gives origin to the unguis, and suggests that claws are modified scales sustained by the last phalanx. Beneath four–seven layers of embryonic alpha‐keratin cells, beta‐keratin cells are differentiated but no shedding complex is formed. Beta‐k...
17 Citations Source Cite
Published on Jun 1, 2007in Italian Journal of Zoology 0.60
L. Alibardi4
Estimated H-index: 4
(University of Bologna)
The epidermis of developing feathers comprises outer and inner periderm, subperiderm and germinal layer. The inner periderm gives origin to sheath and barb ridge vane cells that contain alpha‐keratin and form a belt around feather filaments. This produces mechanical resistance, forcing the inner epidermal cell layers to fold inward and form barb ridges. Mesenchymal‐epidermal contacts occur from the mesenchymal core to external regions of barb ridges and involve thin cytoplasmic processes (filopo...
13 Citations Source Cite
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