摘要:

The present paper considers ascidian cellular defence reactions, giving an account of the role played by each hemocyte type. The blood cells involvement occurring in the processes of wound healing, coagulation, phagocytosis, encapsulation, histoincompatibility, and cytotoxicity is reported and discussed. With the aim of making comparisons and pointing out cell functions, a simple and unitary classification scheme of the hemocytes is proposed. Morphofunctional identikits of the hemocyte categories in ascidians are presented.

ISSN:0373-4137    

DOI:10.1080/11250009209386669

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

Central Nervous System (CNS) neurons in mammals are totally incapable of regenerating their own axons. This incapacity, however, is not due to an intrinsic lack of regenerating power. Literature data in fact demonstrate that the perikaryon of central neurons is capable of regenerating even long sections of axon in the microenvironment of a peripheral nerve graft. Several hypotheses have been proposed to explain the failure of axonal regeneration in the CNS of mammals. The experimental and natural observations carried out by our research group support the previously advanced hypothesis of an autoimmune regenerative blocking. A hypothesis is proposed based on the balancing of enabling and inhibiting factors, which in mammals is biased in favour of the autoimmune blocking of the enabling factors.

ISSN:0373-4137    

DOI:10.1080/11250009209386670

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

ISSN:0373-4137    

DOI:10.1080/11250009209386671

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

ISSN:0373-4137    

DOI:10.1080/11250009209386672

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

FIEDLER K. ‐Lehrhuch der speziellen Zoologie(begründet von A. Kaestner).Band II. Wirbeltiere(herausgegeben von D. Starck).Teil 2: Fische.Gustav Fischer, Jena, 498 pp. Prezzo DM 85.

ISSN:0373-4137    

DOI:10.1080/11250009209386673

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

ISSN:0373-4137    

DOI:10.1080/11250009209386658

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor