Lorenzo Alibardi
University of Bologna
65Publications
25H-index
1,897Citations
Publications 65
Newest
Lorenzo Alibardi25
Estimated H-index: 25
(University of Bologna)
Abstract The present review summarizes biochemical, histochemical and immunocytochemical aspects of the process of tissue regeneration in lizards, non-mammalian amniotes with high regenerative power. The amputated tail initially mobilizes the glycogen and lipid reserves during wound healing. In the following stage of formation of the regenerative blastema tissue remodeling produces a typical embryonic tissue, initially increasing the amount of water and glycosaminoglycans such as jaluronate, whi...
49 Citations Source Cite
Lorenzo Alibardi25
Estimated H-index: 25
The adaptation of the epidermis in amniote vertebrates to life on land took place by a drastic change from an embryonic epidermis made of two-four periderm layers to a terrestrial-proof epidermis. This transition occurred by the increase in types and number of specialized corneous proteins coded by genes of the Epidermal Differentiation Complex. The prevalent types of corneous proteins produced in the reptilian epidermis contain a beta-sheet region of high amino acid homology which allows their ...
3 Citations Source Cite
Published on Jun 1, 2013in Acta Histochemica 1.65
Lorenzo Alibardi25
Estimated H-index: 25
(University of Bologna),
Noecker Bernd1
Estimated H-index: 1
Abstract The inner root sheath (IRS) sustains and addresses the hair shaft outside the follicle. Ultrastructural analysis of immunolabeling for beta-catenin, plakophilin-1, desmoglein-4 and keratin-17 in human hairs has indicated that adherens junctions and desmosomes initially connect cells in mature IRS and the companion layer. Beta-catenin immunolabeling for adherens junctions is only seen in sparse regions of differentiating Huxley cells, Flugelzellen cells and Henle cells, but disappears in...
5 Citations Source Cite
Published on Jul 1, 2012in Journal of Experimental Zoology 2.43
Lorenzo Alibardi25
Estimated H-index: 25
(University of Bologna)
Hair evolution contributed to the biological success of mammals. Hair origin from synapsid scales is speculative and requires extensive modifications of the morphogenetic process transforming lens-shaped dermis of scales into small dermal papillae in hair. Hair evolution from glands is hypothetical but is supported from studies on the signaling control of hair vs. glandular morphogenesis. Based on immunocytochemical and comparative studies, it is hypothesized that the onion-like organization of ...
12 Citations Source Cite
Published on Apr 1, 2011in Acta Zoologica 1.07
Lorenzo Alibardi25
Estimated H-index: 25
(University of Bologna)
Alibardi L. 2011. Histology, ultrastructure, and pigmentation in the horny scales of growing crocodilians. —Acta Zoologica (Stockholm) 92: 187–200. The present morphological study describes the color of hatchling, juvenile, and adult crocodilian skin and the origin of its pigmentation. In situ hybridization and immunostaining indicate that crocodilian scales grow as an expansion of the proliferating epidermis of the hinge region that form thin lateral rings. In more central areas of growing scal...
20 Citations Source Cite
Published on Feb 18, 2010
Lorenzo Alibardi25
Estimated H-index: 25
Regeneration in Reptiles and Its Position Among Vertebrates.- Tail Regeneration: Ultrastructural and Cytological Aspects.- Limb Regeneration: Ultrastructural and Cytological Aspects.- Conclusion and Perspectives: Implications for Human Regeneration.
69 Citations
Published on Sep 1, 2010in Acta Histochemica 1.65
Lorenzo Alibardi25
Estimated H-index: 25
(University of Bologna),
Frank J. Lovicu31
Estimated H-index: 31
(University of Sydney)
Summary A role for fibroblast growth factors in stimulating limb and tail regeneration in amphibians has been shown; however, it is unknown whether these growth factors are also involved in the regeneration of the tail of lizard, an amniote model for studies on tissue regeneration. The presence of fibroblast growth factor-1 (FGF1) and -2 (FGF2) in the regenerating tail of the lizard Lampropholis guichenoti has been studied using immunofluorescence labeling. The study reveals that FGF2 is mainly ...
20 Citations Source Cite
Published on Jan 1, 2010in Belgian Journal of Zoology 0.78
Lorenzo Alibardi25
Estimated H-index: 25
The fine localization of loricrin, a major protein of the cell corneous envelope, is known for the epidermis of few species of placental mammals. The localization of this protein has been studied by immunocytochemistry in the hairy epidermis (orthokeratotic) of the platypus, a representative of monotremes, and compared with the localization of the protein in the epidermis of placental mammals. In the hairy epidermis small keratohyaline granules of 0.1-0.3μm are present in transitional cells of t...
4 Citations
Published on Aug 1, 2010in Annals of Anatomy-anatomischer Anzeiger 1.85
Lorenzo Alibardi25
Estimated H-index: 25
(University of Bologna)
Summary The present study has focused on the distribution and ultrastructure of gap and tight junctions responsible for the formation of the barb/barbule branching in developing feathers using immunocytochemical detection. Apart from desmosomes, both tight and gap junctions are present between differentiating barb/barbule cells and during keratinization. While gap junctions are rare along the perimeter of these cells, tight junctions tend to remain localized in nodes joining barbule cells and be...
7 Citations Source Cite
Published on Jan 1, 2010
Lorenzo Alibardi25
Estimated H-index: 25
19 Citations Source Cite
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