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Alfonso S, Mente E, Fiocchi E, Manfrin A, Dimitroglou A, Papaharisis L, Barkas D, Toomey L, Boscarato M, Losasso C, Peruzzo A, Stefani A, Zupa W, Spedicato MT, Nengas I, Lembo G, Carbonara P. Growth performance, gut microbiota composition, health and welfare of European sea bass (Dicentrarchus labrax) fed an environmentally and economically sustainable low marine protein diet in sea cages. Sci Rep 2023; 13:21269. [PMID: 38042956 PMCID: PMC10693626 DOI: 10.1038/s41598-023-48533-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 11/27/2023] [Indexed: 12/04/2023] Open
Abstract
The large use of fish meal/fish oil in carnivorous fish feeds is the main concern regarding environmental sustainability of aquaculture. Here, we evaluated the effects of an innovative diet, designed to be (1) environmentally sustainable by lowering the marine protein content while being (2) cost effective by using sustainable alternative raw materials with acceptable cost and produced on an industrial scale, on growth performance, gut microbiota composition, health and welfare of European sea bass (Dicentrarchus labrax), a key species of the Mediterranean marine aquaculture, reared in sea cages. Results show that the specific growth rate of fish fed the low marine protein diet was significantly lower than those fed conventional diet (0.67% vs 0.69%). Fatty acid profile of fillets from fish fed a low marine protein diet presented significant lower n-6 and higher n-3 content when compared to conventional ones. Then, a significant increase in the abundance of Vibrio and reduction of Photobacterium were found in the gut of fish fed with the low marine protein diet but effects on sea bass health needs further investigation. Finally, no major health and welfare alterations for fish fed the low marine protein diet were observed, combined with a potential slight benefit related to humoral immunity. Overall, these results suggest that despite the low marine protein diet moderately affects growth performance, it nevertheless may enhance environmental and economic sustainability of the sea bass aquaculture.
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Affiliation(s)
| | - Elena Mente
- Laboratory of Ichthyology-Culture and Pathology of Aquatic Animals, School of Veterinary Medicine, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Eleonora Fiocchi
- National Reference Laboratory for Fish, Mollusc and Crustacean Diseases, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Italy
| | - Amedeo Manfrin
- National Reference Laboratory for Fish, Mollusc and Crustacean Diseases, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Italy
| | - Arkadios Dimitroglou
- Laboratory of Applied Hydrobiology, Department of Animal Science, Agricultural University of Athens, 11855, Athens, Greece
| | | | - Dimitris Barkas
- Department of Research and Development, AVRAMAR S.A., 19002, Paiania, Greece
| | | | - Marilena Boscarato
- National Reference Laboratory for Fish, Mollusc and Crustacean Diseases, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Italy
| | - Carmen Losasso
- Laboratory of Microbial Ecology and Genomics, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Italy
| | - Arianna Peruzzo
- Laboratory of Microbial Ecology and Genomics, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Italy
| | - Annalisa Stefani
- Laboratory Medicine Service, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Italy
| | | | | | - Ioannis Nengas
- Hellenic Centre for Marine Research (HCMR), Institute of Marine Biology, Biotechnology and Aquaculture (IMBBC), 19013, Anavyssos, Greece
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Carbonara P, Alfonso S, Zupa W, Manfrin A, Fiocchi E, Buratin A, Bertazzo V, Cammarata M, Spedicato MT, Lembo G. Investigating the physiological response and antibody concentration of gilthead sea bream (Sparus aurata) following Vibrio anguillarum vaccination depending on the stress coping style. Front Anim Sci 2022. [DOI: 10.3389/fanim.2022.951179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Stress coping styles (SCSs) are defined as coherent sets of individual physiological and behavioral differences in stress response consistent across time and context and are described in a wide range of taxa, including fishes. These differences in behavior and physiology are of great interest because they may have direct implications on animal health, welfare, and performance in farming systems, including aquaculture. In this study, the physiological responses of sea bream (Sparus aurata) from different SCSs following Vibrio anguillarum vaccination were monitored. Fish were first screened either bold or shy (proxy of proactive and reactive SCSs, respectively) using group risk-taking tests and were then injected with a vaccine against V. anguillarum. Following vaccination, the fish were implanted with an accelerometer tag to monitor their swimming activity (proxy of energy expenditure), and blood sampling was carried out to measure health and welfare parameters (e.g., cortisol, glucose, hemoglobin) and aspecific immunity (e.g., protease, total proteins). In addition, blood was also collected at three different sampling times to screen antibody levels and, thus, to evaluate the efficiency of the vaccine. Following vaccination, bold fish displayed lower swimming activity values, indicative of lower energy expenditure, and also displayed higher levels of hematocrit, total proteins, and lysozyme in the plasma than the shy ones, which could be indicative of better health/welfare status and greater aspecific immunity. Finally, the V. anguillarum vaccination appeared to be more efficient in bold fish since the number of total antibodies was found higher than in shy fish 1 month after vaccination. Such results could help improve both health/welfare and productivity of farmed sea breams by selecting more robust fish, better adapted to farming conditions.
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Davidovich N, Fiocchi E, Basso A, Budai J, Montesi F, Pretto T. An outbreak of crayfish rickettsiosis caused by Coxiella cheraxi in redclaw crayfish (Cherax quadricarinatus) imported to Israel from Australia. Transbound Emerg Dis 2021; 69:204-212. [PMID: 34724326 DOI: 10.1111/tbed.14375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 09/28/2021] [Accepted: 10/16/2021] [Indexed: 11/29/2022]
Abstract
The redclaw crayfish (Cherax quadricarinatus) is a freshwater decapod crustacean, cultured in numerous countries worldwide for both food and ornamental purposes. Redclaw crayfish has become an important aquaculture species due to its physical and biological traits, relatively easy breeding, and a short growing-out period to reach commercial size. Bacterial infections are the second-most studied pathogens of freshwater crayfish. However, redclaw crayfish rickettsiosis, caused by Coxiella cheraxi, was reported in only a few scientific papers in the early 2000s, in Australia and Ecuador. Coxiella cheraxi is a rod-shaped intracellular bacterium that can cause mortality of 22%-80% in naturally infected crayfish. In experimental infections, mortality rates may be even higher (40%-90%). Coxiella cheraxi is closely related to Coxiella burnetii, the agent of Q-fever, which affects ruminants (goats, sheep, and cattle) and occasionally may cause zoonotic infections. According to the scientific knowledge available, C. cheraxi is a species-specific pathogen because it has been only detected in Cherax quadricarinatus and thus far, there is no evidence of a zoonotic potential. In this study, we describe an outbreak of rickettsiosis in a batch of redclaw crayfish imported to Israel from an Australian hatchery, observed 2 months after introduction in a quarantine facility. Initial mortality was evaluated through histopathology, revealing infection by rickettsia-like organisms (RLO) that were subsequently investigated by molecular analysis and transmission electron microscopy examination. Phylogenetic analysis revealed that the detected RLO were closely related to C. cheraxi from a single source (Australian strain TO98), available in free publicly accessible databases. After 5 months in quarantine, almost 99% of the crayfish population had died. Our findings raise valuable questions related to aquatic animal trade and the importance of mitigation measures, such as quarantine and routine diagnostic procedures, to limit the spread of infectious diseases.
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Affiliation(s)
| | - Eleonora Fiocchi
- Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Andrea Basso
- Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Jane Budai
- Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | | | - Tobia Pretto
- Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
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Marsella A, Pretto T, Abbadi M, Quartesan R, Cortinovis L, Fiocchi E, Manfrin A, Toffan A. Carp edema virus-related mortality in wild adult common carp (cyprinus carpio) in Italy. J Fish Dis 2021; 44:939-947. [PMID: 33591616 DOI: 10.1111/jfd.13353] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/29/2021] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
Mortality in wild fish populations represents a challenging issue for public fish health inspectors. When a single fish species is involved, an infective aetiology is frequently suspected, with focus on viral notifiable diseases. However, other viral agents not subjected to regulation and causing mortality in common carp have been reported such as carp edema virus (CEV). In mid-June 2020, a severe common carp mortality was observed in an artificial lake in north-east of Italy. Sleepy fish were noted some days before the beginning of the mortality itself, which lasted several days and involved over 340 adult specimens. During the outbreak, water temperature was around 15°C, water quality was normal, and no adverse meteorological events were reported in the area. Four specimens, which showed severe cutaneous hyperaemia and increased mucus production on skin and gills, were tested by bacteriological methods and virological analysis targeting the main carp pathogens. Molecular analysis performed on gills, kidney and brains from all the fish analysed resulted positive for CEV, which, based on anamnestic information and laboratory findings, was considered the responsible for the mortality event herein described.
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Affiliation(s)
- Andrea Marsella
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Tobia Pretto
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Miriam Abbadi
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Rosita Quartesan
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Luana Cortinovis
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Eleonora Fiocchi
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Amedeo Manfrin
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Anna Toffan
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
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Fiocchi E, Civettini M, Carbonara P, Zupa W, Lembo G, Manfrin A. Development of molecular and histological methods to evaluate stress oxidative biomarkers in sea bass (Dicentrarchus labrax). Fish Physiol Biochem 2020; 46:1577-1588. [PMID: 32388830 DOI: 10.1007/s10695-020-00811-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 04/23/2020] [Indexed: 06/11/2023]
Abstract
In aquaculture, fish species may experience stressful episodes caused by poor farming conditions. The exponential increase of global aquaculture has raised the number of research studies aimed at demonstrating the sensitivity of aquatic animals in confined environments. The development of a real-time PCR and immunohistochemistry methods were investigated to evaluate the presence, localization, and quantity of biomarkers of oxidative stress in European sea bass (Dicentrarchus labrax). In particular, stress tests such as manipulation and temperature changes were conducted through molecular methods to identify the expression level of heat shock protein 70 (HSP70) in stressed animals compared with a control group. The immunohistochemical technique was also applied to locate and study the trends-levels of nitrotyrosine (NT), heat shock protein 70 (HSP70), malondialdehyde (MDA), and 4-hydroxy-2-nonenal (HNE) in different tissues from stressed animals and control group. The presence of the rodlet cell (RCs) was evaluated by histology in both a control and stressed group. Our results show that the real-time PCR method developed is specific for the evaluated target gene and that manipulation and temperature increase are strong stressors for animals. Relative quantification data revealed a gene expression increase of HSP70 in the stressed group of animals compared to the control group. The antibodies used for the immunohistochemical staining were efficient, and it was possible to appreciate the increase of immunoprecipitates in European sea bass either manipulated or stressed by temperature increase. The present study can be a starting point to allow the quantification of HSP70 and the identification of other stress biomarkers in D. labrax.
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Affiliation(s)
- Eleonora Fiocchi
- Istituto Zooprofilattico Sperimentale delle Venezie, National Reference Laboratory for Fish, Mollusc and Crustacean Diseases, Viale Università, 10, 35020, Legnaro, Italy.
| | - Michele Civettini
- Istituto Zooprofilattico Sperimentale delle Venezie, National Reference Laboratory for Fish, Mollusc and Crustacean Diseases, Viale Università, 10, 35020, Legnaro, Italy
| | - Pierluigi Carbonara
- COISPA Tecnologia & Ricerca, Via Lama di Giotta, 70126, Torre a Mare, BA, Italy
| | - Walter Zupa
- COISPA Tecnologia & Ricerca, Via Lama di Giotta, 70126, Torre a Mare, BA, Italy
| | - Giuseppe Lembo
- COISPA Tecnologia & Ricerca, Via Lama di Giotta, 70126, Torre a Mare, BA, Italy
| | - Amedeo Manfrin
- Istituto Zooprofilattico Sperimentale delle Venezie, National Reference Laboratory for Fish, Mollusc and Crustacean Diseases, Viale Università, 10, 35020, Legnaro, Italy
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Carbonara P, Alfonso S, Zupa W, Manfrin A, Fiocchi E, Pretto T, Spedicato MT, Lembo G. Behavioral and physiological responses to stocking density in sea bream (Sparus aurata): Do coping styles matter? Physiol Behav 2019; 212:112698. [PMID: 31626890 DOI: 10.1016/j.physbeh.2019.112698] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 09/09/2019] [Accepted: 10/01/2019] [Indexed: 10/25/2022]
Abstract
Stocking density is considered a stress factor for fish and is therefore one of the numerous concerns about fish welfare in an aquaculture context. Stress coping styles (SCS) are defined as a coherent set of individual physiological and behavioral differences in stress responses that are consistent across time and context and appear to be promising for improving fish welfare in aquaculture. The aim of the present study was to describe the physiological and zootechnical performances of gilthead sea bream (Sparus aurata) at different stocking densities (low density, LD: 15 kg/m3 and high density, HD: 30 kg/m3), depending on individual SCS. To do so, the fish SCS were first screened by measuring boldness (prior to the experiment). Three consecutive samplings were performed over the experiment to measure several blood parameters, including hematocrit (Hct), red blood cell count (RBCC), hemoglobin (Hb), cortisol, adrenalin, noradrenalin, glucose, lactate, and lysozyme, to infer the consequence of the SCS profile on the welfare condition in response to stocking density. Finally, swimming activity was recorded in a subsample of individuals (9 BOLD and 9 SHY individuals per density), and BOLD individuals displayed higher swimming activity than SHY ones at HD, while the opposite pattern was observed at LD. According to principal component analysis, physiological parameters are linked to the SCS profile, mostly at the beginning of the experiment, while density effects on physiology remain during the entire experiment duration. In conclusion, regarding all the variables observed, fish SCS appeared to be promising criteria to select the most adaptive individuals relating to rearing conditions and therefore improve welfare.
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Affiliation(s)
| | | | | | - Amedeo Manfrin
- Istituto Zooprofilattico delle Venezie, sede di Adria, Italy
| | | | - Tobia Pretto
- Istituto Zooprofilattico delle Venezie, sede di Adria, Italy
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Serratore P, Zavatta E, Fiocchi E, Serafini E, Serraino A, Giacometti F, Bignami G. Preliminary study on the antimicrobial susceptibility pattern related to the genotype of Vibrio vulnificus strains isolated in the north-western Adriatic Sea coastal area. Ital J Food Saf 2017; 6:6843. [PMID: 29564231 PMCID: PMC5850071 DOI: 10.4081/ijfs.2017.6843] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 07/10/2017] [Accepted: 07/10/2017] [Indexed: 01/22/2023] Open
Abstract
V. vulnificus is a Gram-negative bacterium, commonly found in estuarine and coastal habitats, that can infect humans through seafood consumption or wound exposure. This study represents the first attempt to correlate the genotype of Vibrio vulnificus strains isolated in the north-western Adriatic Sea coastal area, with their antimicrobial susceptibility patterns. On the whole, 40 V. vulnificus strains, isolated from shellfish (n=20), different coastal water bodies (n=19), and the blood of a Carretta carretta turtle (n=1), were utilized. All strains were positive for the species-specific genes vvhA and hsp, with high variability for other markers: 55% (22 out of 40) resulted of the environmental (E) genotype (vcgE, 16S rRNA type A, CPS2 or CPS0), 10% (4 out of 40) of the clinical (C) genotype (vcgC, 16S rRNA type B, CPS1), and 35% (14 out of 40) of the mixed (M) genotype, possessing both E and C markers. The antimicrobial susceptibility was assayed by the diffusion method on agar, according to the Clinical Laboratory Standards Institute (CLSI), utilizing the following commercial disks (Oxoid): ampicillin (AMP), ampicillin- sulbactam (SAM), piperacillin (PRL), cefazolin (KZ), cefotaxime(CTX), ceftazidime (CAZ), imipenem (IPM), meropenem (MEM), amikacin (AK), gentamicin(CN), tetracycline(TE), ciprofloxacin (CIP), levofloxacin (LEV), trimethoprim-sulfamethoxazole (SXT), and chloramphenicol (C). 75% of the strains, (n=30) including all C strains, was sensitive to all the tested antibiotics, whereas E strains showed intermediate sensitivity to AK (2 strains), CIP and CAZ (1 strain), TE (1 strain) and resistance to KZ (1 strain), and 4 M strains showed I to AK.
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Affiliation(s)
- Patrizia Serratore
- Department of Veterinary Medical Science, Alma Mater Studiorum- University of Bologna, Bologna, Italy
| | - Emanuele Zavatta
- Department of Veterinary Medical Science, Alma Mater Studiorum- University of Bologna, Bologna, Italy
| | - Eleonora Fiocchi
- Department of Veterinary Medical Science, Alma Mater Studiorum- University of Bologna, Bologna, Italy
| | - Emanuele Serafini
- Department of Veterinary Medical Science, Alma Mater Studiorum- University of Bologna, Bologna, Italy
| | - Andrea Serraino
- Department of Veterinary Medical Science, Alma Mater Studiorum- University of Bologna, Bologna, Italy
| | - Federica Giacometti
- Department of Veterinary Medical Science, Alma Mater Studiorum- University of Bologna, Bologna, Italy
| | - Giorgia Bignami
- Department of Veterinary Medical Science, Alma Mater Studiorum- University of Bologna, Bologna, Italy
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Bidin L, Marafante G, Pellacani B, Andreoni A, Macca G, Fiocchi E, Boni L, Cantù G, Garnerone L, Sgorbati R, Putignano F, Belfiglio B, Franchi F, Corda C, La Guzza C, Ferri C, Giuffredi I, Lamanuzzi E, Pigaiani L, Casini M, Mazzoni M. Baseline characteristics of cancer Patients demanding integrative oncology (IO) support. The experience of Nuova Oncologia Integrata (NOI), an Italian non-profit organization. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx435.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Pedrini L, Pisano E, Catizone L, Masetti L, Muttini A, Motta R, Fiocchi E, Guarnieri C, Fornino G, D'Addato M. Local haemofiltration with free radical scavenger treatment during revascularisation of severe muscular ischaemia induced in sheep limbs. Eur J Vasc Surg 1992; 6:47-52. [PMID: 1555670 DOI: 10.1016/s0950-821x(05)80094-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Many treatments have been proposed for the prevention of the revascularisation syndrome following embolectomy or thrombectomy in patients with severe ischaemia. These include the administration of diuretics, bicarbonate, buffer solutions, free radical scavengers, washing out the venous blood from the ischaemic leg, or systemic dialysis. The aim of our study was to investigate the effect of combining haemofiltration with a treatment using compound oxy-radical scavengers in order to prevent or to reduce the appearance of the revascularisation syndrome. The study was performed on 13 sheep. Eight animals underwent 4 h of aortic and vena cava occlusion using irrigation-occlusion catheters, followed by normal reperfusion (control group). Five sheep underwent the same period of ischaemia, followed by 1 h of local haemofiltration and re-oxygenation and 2 h of normal revascularisation. The priming solution for the ECC circuit consisted of 500 ml of 20% mannitol and 500 ml of 18/1000 HCO3- contained: superoxide dismutase (150,000 I.U.), methylprednisolone, 1 g, and heparin, 10,000 I.U. After the 3rd h of ischaemia, 2.1 g of acetate alpha-tocopherol (30 mg kg-1) were injected i.m. The treatment produced good protection against oxidative stress, shown by an increase in the glutathione ratio (GSH/GSSG), and reduced muscular damage, confirmed by a moderate increase in creatine phosphokinase (CPK) levels (significantly higher in the control group). Diuresis was significantly higher in the treated group, and the acid-basic and potassium balance returned to normal more rapidly. Our data suggest that this combined treatment could be effective in the prevention of the ischaemia-reperfusion syndrome.
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Affiliation(s)
- L Pedrini
- Department of Vascular Surgery, University of Bologna, Italy
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Mondani F, Granatiero M, Gasparoni A, Di Vita M, Fiocchi E. [Cataloguing of cysts is a difficult venture]. Attual Dent 1985; 1:22-31. [PMID: 3869469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Fiocchi E. [Studies of the chromosome patterns of some types of tumors of the female genital system]. Folia Hered Pathol (Milano) 1967; 16:157-64. [PMID: 5605865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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