2024-03-28T16:46:49Z
http://eprints.adm.unipi.it/cgi/oai2
oai:eprints.adm.unipi.it:288
2010-12-20T11:06:03Z
7374617475733D707562
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7375626A656374733D417265613037:5645542F3035
7375626A656374733D417265613035:42494F2F3035
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http://eprints.adm.unipi.it/288/
Monitoraggio sanitario di Procambarus Clarkii (Girard 1852) nel lago di Massaciuccoli, presenza di protozoi ectosimbionti in relazione alla qualità dell'acqua
Mani, Paolo
Mazzi, Fabio
Pedrazzi, Silvia
Carducci, Annalaura
Rossi, Giacomo
Verni, Franco
MED/42 - Igiene generale e applicata
VET/05 - Malattie infettive degli animali domestici
BIO/05 - Zoologia
RIASSUNTO Lo stato sanitario di P. clarkii nel lago di Massaciuccoli è stato rilevato da un campione di 3281 gamberi catturati in quattro distinte zone, nel corso di 8 prelievi effettuati da maggio 2000 a gennaio 2001: oltre ai gamberi sono stati prelevati campioni di acqua per analisi microbiologiche. Alla cattura sono stati raccolti i dati relativi a mortalità e presenza di lesioni macroscopiche esterne ed in laboratorio sono stati effettuati controlli istologici su lesioni all’esoscheletro e/o ad organi interni e controlli batteriologici su branchie, contenuto intestinale e campioni di acqua. La mortalità è risultata del 3,66% (120 gamberi morti su 3281 esaminati) e le lesioni all’esoscheletro sono risultate di natura traumatica, spesso complicate da processi flogistici sostenuti da Aeromonas spp. e Pseudomonas spp. Sono state rilevate anche lesioni primarie sostenute da batteri chitinolitici. Da intestino e branchie sono stati isolati batteri appartenenti ai generi Citrobacter, Proteus e Vibrio. La carica microbica dell’acqua è risultata diversa nelle zone e nel tempo in relazione a condizioni climatiche ed ambientali. SUMMARY The sanitary status of P. clarkii population, living in Massaciuccoli lake, was been evaluated, examining 3281 crayfishes captured from May 2000 to January 2001 in four different zones. Living crayfish and specimens of water for microbiological tests were been sampled eight times during the study. Different parameters were considered as: mortality of crayfishes during the capture, typology of exoschelethal and visceral lesions, evaluation of the different species of bacteria isolated from sampled crayfishes and water. An histopathological study was been performed from encountered exoschelethal and visceral lesions. Finally, all parameters were compared with total microbial charge resulted from the examination of water samples. Mortality during the capture resulted of 3.66% (120 dead crayfishes / 3281 examined crayfishes) and exoschelethal lesions examination revealed the traumatic and primary microbial nature of them. Particularly, crayfish’s aetiology of external lesions resulted the infection with Aeromonas spp. and Pseudomonas spp., Citrobacter, Proteus and Vibrio which were isolated from gills and gut of crayfishes. The mortality at the capture and the prevalence of primary exoschelethal lesions resulted depending from the microbial charge of the water, that changed in different zones and times during the sampling in relation to environmental and climatic conditions.
2001
Article
NonPeerReviewed
application/pdf
it
http://eprints.adm.unipi.it/288/1/387.pdf
Mani, Paolo and Mazzi, Fabio and Pedrazzi, Silvia and Carducci, Annalaura and Rossi, Giacomo and Verni, Franco (2001) Monitoraggio sanitario di Procambarus Clarkii (Girard 1852) nel lago di Massaciuccoli, presenza di protozoi ectosimbionti in relazione alla qualità dell'acqua. Annali della Facoltà di Medicina veterinaria, LIV/20 . pp. 372-385. ISSN 0365-4729
http://www.biblio.vet.unipi.it/annali2001/pdf/387.pdf
oai:eprints.adm.unipi.it:2323
2015-03-06T13:19:03Z
7374617475733D707562
7375626A656374733D417265613036:4D45442F3131
7375626A656374733D417265613036:4D45442F3432
74797065733D61727469636C65
http://eprints.adm.unipi.it/2323/
Cardiovascular effects of arsenic: clinical and epidemiological findings
Stea, Francesco
Bianchi, Fabrizio
Cori, Liliana
Sicari, Rosa
MED/11 - Malattie dell'apparato cardiovascolare
MED/42 - Igiene generale e applicata
Several population studies relate exposure to high levels of arsenic with an increased incidence of ischemic heart disease and cardiovascular mortality. An association has been shown between exposure to high levels of arsenic and cardiovascular risk factors such as hypertension and diabetes mellitus, and vascular damage such as subclinical carotid atherosclerosis. The mechanisms underlying these phenomena are currently being studied and appear to indicate an alteration of vascular function. However, the effects of low levels of exposure to arsenic and their potential detrimental cardiovascular effect are less explored. The article provides an overview of the pathophysiologic mechanisms linking low-level arsenic exposure to the occurrence of cardiovascular disease and its complications, and some potential preventive strategies to implement.
2014
Article
PeerReviewed
application/pdf
en
cc_by_nd
http://eprints.adm.unipi.it/2323/3/17_07_2013_Cardiovascular_Effects_of_Arsenic.pdf
application/msword
en
cc_by_nd
http://eprints.adm.unipi.it/2323/1/17_07_2013_Cardiovascular_Effects_of_Arsenic.doc
Stea, Francesco and Bianchi, Fabrizio and Cori, Liliana and Sicari, Rosa (2014) Cardiovascular effects of arsenic: clinical and epidemiological findings. Environmental Science and Pollution Research, 21 (1). pp. 244-251. ISSN 0944-1344
http://dx.doi.org/10.1007/s11356-013-2113-z
doi:10.1007/s11356-013-2113-z