Abstract
Penetration of the skin of the definitive host by a schistosome parasite results in a cercaria losing its tail and becoming transformed into a schistosomulum, the whole process being known as the cercarial/schistosomulum transformation (Stirewalt 1974; He et al. 2005). This morphological transformation is accompanied by dramatic changes in the physiology and biochemistry of the larva (Stirewalt 1974). Contraction and extension of the schistosomulum and the release of enzymes from its pre-and post-acetabular glands cause extensive tissue damage to all host structures traversed, until the larva breaches a blood vessel wall and enters a blood vessel. The timing of these early skin-schistosomulum stage events varies in schistosome species. Ninety percent of Schistosoma mansoni and S. haematobium parasites still remain in the host epidermis after 24 hours while within the same period a similar number of S. japonicum schistosomula will have reached the dermis or dermal vessels of the host (He et al. 2002).
| Language | English |
|---|---|
| Title of host publication | Schistosoma |
| Subtitle of host publication | Biology, Pathology and Control |
| Publisher | CRC Press |
| Pages | 184-212 |
| Number of pages | 29 |
| ISBN (Electronic) | 9781498744263 |
| ISBN (Print) | 9781498744256 |
| DOIs | |
| Publication status | Published - 01 Jan 2017 |
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Schistosomula. / Gobert, Geoffrey N.; Nawaratna, Sujeevi S.K.
Schistosoma: Biology, Pathology and Control. CRC Press, 2017. p. 184-212.Research output: Chapter in Book/Report/Conference proceeding › Chapter
TY - CHAP
T1 - Schistosomula
AU - Gobert, Geoffrey N.
AU - Nawaratna, Sujeevi S.K.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Penetration of the skin of the definitive host by a schistosome parasite results in a cercaria losing its tail and becoming transformed into a schistosomulum, the whole process being known as the cercarial/schistosomulum transformation (Stirewalt 1974; He et al. 2005). This morphological transformation is accompanied by dramatic changes in the physiology and biochemistry of the larva (Stirewalt 1974). Contraction and extension of the schistosomulum and the release of enzymes from its pre-and post-acetabular glands cause extensive tissue damage to all host structures traversed, until the larva breaches a blood vessel wall and enters a blood vessel. The timing of these early skin-schistosomulum stage events varies in schistosome species. Ninety percent of Schistosoma mansoni and S. haematobium parasites still remain in the host epidermis after 24 hours while within the same period a similar number of S. japonicum schistosomula will have reached the dermis or dermal vessels of the host (He et al. 2002).
AB - Penetration of the skin of the definitive host by a schistosome parasite results in a cercaria losing its tail and becoming transformed into a schistosomulum, the whole process being known as the cercarial/schistosomulum transformation (Stirewalt 1974; He et al. 2005). This morphological transformation is accompanied by dramatic changes in the physiology and biochemistry of the larva (Stirewalt 1974). Contraction and extension of the schistosomulum and the release of enzymes from its pre-and post-acetabular glands cause extensive tissue damage to all host structures traversed, until the larva breaches a blood vessel wall and enters a blood vessel. The timing of these early skin-schistosomulum stage events varies in schistosome species. Ninety percent of Schistosoma mansoni and S. haematobium parasites still remain in the host epidermis after 24 hours while within the same period a similar number of S. japonicum schistosomula will have reached the dermis or dermal vessels of the host (He et al. 2002).
UR - http://www.scopus.com/inward/record.url?scp=85054401170&partnerID=8YFLogxK
U2 - 10.1201/9781315368900
DO - 10.1201/9781315368900
M3 - Chapter
SN - 9781498744256
SP - 184
EP - 212
BT - Schistosoma
PB - CRC Press
ER -