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For a given species in a particular environment, the success and the harmlessness of transmitter attachment appear to be highly specific. As no information was available for the tagging of the strepie, Sarpa salpa, a suitability study of attachment techniques was needed. Two types of transmitter attachments were investigated: (1) externally, placed on the back of the fish below the dorsal fin by means of two threads sutured through the dorsal musculature, and (2) internally, in the peritoneal cavity. Twenty-five fish were monitored over a 14-d period for survival, surgical healing, injury occurrence and post-tagging behaviour. Even though we observed a 100% survival rate for both groups, with no noticeable buoyancy or swimming alteration, findings from this study indicate that both groups of tagged fish were affected by the presence of the transmitter in different ways. Fish with an external transmitter were chronically affected, incurring physical impact, whereas the surgically-implanted fish exhibited short-term tagging effects (less than 36 h), attributable to surgery effects, and were not subject to fouling on transmitter or wound chafing. Moreover, they appeared to recover quickly with no indication of long-term effects. Based on the findings of this study. the use of the surgical implantation method for Sarpa salpa is recommended., Pour une espèce donnée dans un environnement particulier, le succès d’attachement d’un émetteur s’avère hautement spécifique. Aucune information n’étant pour le moment disponible pour le marquage de la saupe, Sarpa salpa, un étude de faisabilité des techniques d’attachement d’émetteurs était nécessaire. Deux types de méthodes ont été testées : la première, externe, où l’émetteur est placé sur le dos du poisson en dessous de la nageoire dorsale à travers la musculature, et la seconde, interne, où l’émetteur est placé dans la cavité péritonéale. Vingt-cinq poissons ont été observés sur une période de deux semaines concernant le taux de survie, la cicatrisation post-chirurgicale, la présence ou non de blessures et le comportement post-opératoire. Même si nous avons observé un taux de survie de 100 % pour les deux groupes et n’avons pas observé de modification de la flottabilité ou de la nage, les conclusions de cette étude indiquent que les deux groupes de poissons ont été affectés par la présence de l’émetteur de manière différente. Les poissons avec une marque externe sont affectés de manière chronique, entraînant un impact physique. Quant aux poissons avec une marque dans la cavité péritonéale ils présentent des effets de courtes durées (moins de 36 h), qui peuvent être attribué à la chirurgie et ne sont pas sujet au fouling sur l’émetteur ni à une abrasion des blessures due au frottement du poisson. De plus, ils semblent récupérer plus rapidement, sans indication d’effets à long terme. Sur base des conclusions de cette étude nous recommandons l’utilisation de la méthode d’implantation intrapéritonéale pour marquer la saupe.

For a given species in a particular environment, the success and the harmlessness of transmitter attachment appear to be highly specific. As no information was available for the tagging of the strepie, Sarpa salpa, a suitability study of attachment techniques was needed. Two types of transmitter attachments were investigated: (1) externally, placed on the back of the fish below the dorsal fin by means of two threads sutured through the dorsal musculature, and (2) internally, in the peritoneal cavity. Twenty-five fish were monitored over a 14-d period for survival, surgical healing, injury occurrence and post-tagging behaviour. Even though we observed a 100% survival rate for both groups, with no noticeable buoyancy or swimming alteration, findings from this study indicate that both groups of tagged fish were affected by the presence of the transmitter in different ways. Fish with an external transmitter were chronically affected, incurring physical impact, whereas the surgically-implanted fish exhibited short-term tagging effects (less than 36 h), attributable to surgery effects, and were not subject to fouling on transmitter or wound chafing. Moreover, they appeared to recover quickly with no indication of long-term effects. Based on the findings of this study. the use of the surgical implantation method for Sarpa salpa is recommended., Pour une espèce donnée dans un environnement particulier, le succès d’attachement d’un émetteur s’avère hautement spécifique. Aucune information n’étant pour le moment disponible pour le marquage de la saupe, Sarpa salpa, un étude de faisabilité des techniques d’attachement d’émetteurs était nécessaire. Deux types de méthodes ont été testées : la première, externe, où l’émetteur est placé sur le dos du poisson en dessous de la nageoire dorsale à travers la musculature, et la seconde, interne, où l’émetteur est placé dans la cavité péritonéale. Vingt-cinq poissons ont été observés sur une période de deux semaines concernant le taux de survie, la cicatrisation post-chirurgicale, la présence ou non de blessures et le comportement post-opératoire. Même si nous avons observé un taux de survie de 100 % pour les deux groupes et n’avons pas observé de modification de la flottabilité ou de la nage, les conclusions de cette étude indiquent que les deux groupes de poissons ont été affectés par la présence de l’émetteur de manière différente. Les poissons avec une marque externe sont affectés de manière chronique, entraînant un impact physique. Quant aux poissons avec une marque dans la cavité péritonéale ils présentent des effets de courtes durées (moins de 36 h), qui peuvent être attribué à la chirurgie et ne sont pas sujet au fouling sur l’émetteur ni à une abrasion des blessures due au frottement du poisson. De plus, ils semblent récupérer plus rapidement, sans indication d’effets à long terme. Sur base des conclusions de cette étude nous recommandons l’utilisation de la méthode d’implantation intrapéritonéale pour marquer la saupe.

For a given species in a particular environment, the success and the harmlessness of transmitter attachment appear to be highly specific. As no information was available for the tagging of the strepie, Sarpa salpa, a suitability study of attachment techniques was needed. Two types of transmitter attachments were investigated: (1) externally, placed on the back of the fish below the dorsal fin by means of two threads sutured through the dorsal musculature, and (2) internally, in the peritoneal cavity. Twenty-five fish were monitored over a 14-d period for survival, surgical healing, injury occurrence and post-tagging behaviour. Even though we observed a 100% survival rate for both groups, with no noticeable buoyancy or swimming alteration, findings from this study indicate that both groups of tagged fish were affected by the presence of the transmitter in different ways. Fish with an external transmitter were chronically affected, incurring physical impact, whereas the surgically-implanted fish exhibited short-term tagging effects (less than 36 h), attributable to surgery effects, and were not subject to fouling on transmitter or wound chafing. Moreover, they appeared to recover quickly with no indication of long-term effects. Based on the findings of this study. the use of the surgical implantation method for Sarpa salpa is recommended., Pour une espèce donnée dans un environnement particulier, le succès d’attachement d’un émetteur s’avère hautement spécifique. Aucune information n’étant pour le moment disponible pour le marquage de la saupe, Sarpa salpa, un étude de faisabilité des techniques d’attachement d’émetteurs était nécessaire. Deux types de méthodes ont été testées : la première, externe, où l’émetteur est placé sur le dos du poisson en dessous de la nageoire dorsale à travers la musculature, et la seconde, interne, où l’émetteur est placé dans la cavité péritonéale. Vingt-cinq poissons ont été observés sur une période de deux semaines concernant le taux de survie, la cicatrisation post-chirurgicale, la présence ou non de blessures et le comportement post-opératoire. Même si nous avons observé un taux de survie de 100 % pour les deux groupes et n’avons pas observé de modification de la flottabilité ou de la nage, les conclusions de cette étude indiquent que les deux groupes de poissons ont été affectés par la présence de l’émetteur de manière différente. Les poissons avec une marque externe sont affectés de manière chronique, entraînant un impact physique. Quant aux poissons avec une marque dans la cavité péritonéale ils présentent des effets de courtes durées (moins de 36 h), qui peuvent être attribué à la chirurgie et ne sont pas sujet au fouling sur l’émetteur ni à une abrasion des blessures due au frottement du poisson. De plus, ils semblent récupérer plus rapidement, sans indication d’effets à long terme. Sur base des conclusions de cette étude nous recommandons l’utilisation de la méthode d’implantation intrapéritonéale pour marquer la saupe.

Five normal male volunteers were submitted to blood sampling at 15-min intervals during seven 24-h periods staggered over 10 weeks while they underwent successively a westward and an eastward 7-h time shift by jet. Total proteins (TPP), ACTH, and cortisol concentrations were measured in each plasma sample. Possible psychological stresses were minimized by careful selection and adjustment of the volunteers before the beginning of the investigation. Physical facilities and time of the year of the execution of the study were chosen in order to avoid the influence of differences in air temperature and duration of daylight. The westward and eastward travels involved, respectively, periods of 23 and 33 h of sleep deprivation without recumbency. TPP levels were measured on each sample in order to monitor plasma dilution. Rapid fluctuations of TPP of an average magnitude of 12% were observed in all studies independently of posture or travel. They did not result from artefactual dilution due to fluid infusion. Seventy percent of the individual 24-h TPP patterns showed significantly higher TPP concentrations during ambulation than during recumbency, and a circadian rhythm with an acrophase during daytime could be detected in 21 of 34 profiles. These data thus generally support the concept of posture dependence of TPP daily variations. Transient disruptions (abolished or reversed differences between ambulation and recumbency TPP levels and/or absence or reversal of circadian rhythm) of the 24-h TPP pattern was observed in 7 of the 9 profiles obtained 1 day after the flights and was more severe after the eastward shift. It is suggested that the prolonged ambulation periods as well as the change in the type of ambulatory activity involved in commercial airline transportation caused the delay in the resumption of the usual circadian pattern of TPP levels. The time of maximal secretion (acrophase) and the quiescent period of the 24-h pattern of ACTH and cortisol adapted differentl, SCOPUS: ar.j, info:eu-repo/semantics/published

info:eu-repo/semantics/published

Clinical Trial, Comparative Study, Letter, Randomized Controlled Trial, SCOPUS: le.j, info:eu-repo/semantics/published

The therapeutic effects of haemodialysis were evaluated in schizophrenic patients using a double blind procedure. Twelve patients were diagnosed as acute schizophrenics according to Feighner's criteria for psychopathology. After obtaining informed consent, the patients were randomly assigned to active haemodialysis (AD) or sham dialysis (SD). An 8 days "drug washout period" was followed by AD or SD treatment of 4 weeks (two 5 hours sessions per week) and psychopathological evaluations were performed regularly in a blind fashion using the Brief Psychiatry Rating Scale (BPRS) and the Comprehensive Psychopathological Rating Scale (CPRS). Nine of the 12 patients were improved by both extracorporeal procedures with or without active dialysis. No significant difference appeared however between both groups in the rate and degree of improvement of nuclear symptoms of schizophrenia. Nevertheless, AD was significantly more efficient in relieving affective symptomatology, suggesting the potential involvement of some endogenous dialysable substance (s) in the pathogenesis of mood disturbances in schizophrenia., Clinical Trial, Journal Article, Randomized Controlled Trial, info:eu-repo/semantics/published

The therapeutic effects of haemodialysis were evaluated in schizophrenic patients using a double blind procedure. Twelve patients were diagnosed as acute schizophrenics according to Feighner's criteria for psychopathology. After obtaining informed consent, the patients were randomly assigned to active haemodialysis (AD) or sham dialysis (SD). An 8 days "drug washout period" was followed by AD or SD treatment of 4 weeks (two 5 hours sessions per week) and psychopathological evaluations were performed regularly in a blind fashion using the Brief Psychiatry Rating Scale (BPRS) and the Comprehensive Psychopathological Rating Scale (CPRS). Nine of the 12 patients were improved by both extracorporeal procedures with or without active dialysis. No significant difference appeared however between both groups in the rate and degree of improvement of nuclear symptoms of schizophrenia. Nevertheless, AD was significantly more efficient in relieving affective symptomatology, suggesting the potential involvement of some endogenous dialysable substance (s) in the pathogenesis of mood disturbances in schizophrenia., Clinical Trial, Journal Article, Randomized Controlled Trial, info:eu-repo/semantics/published

Clinical Trial, Comparative Study, Letter, Randomized Controlled Trial, SCOPUS: le.j, info:eu-repo/semantics/published

info:eu-repo/semantics/published

Five normal male volunteers were submitted to blood sampling at 15-min intervals during seven 24-h periods staggered over 10 weeks while they underwent successively a westward and an eastward 7-h time shift by jet. Total proteins (TPP), ACTH, and cortisol concentrations were measured in each plasma sample. Possible psychological stresses were minimized by careful selection and adjustment of the volunteers before the beginning of the investigation. Physical facilities and time of the year of the execution of the study were chosen in order to avoid the influence of differences in air temperature and duration of daylight. The westward and eastward travels involved, respectively, periods of 23 and 33 h of sleep deprivation without recumbency. TPP levels were measured on each sample in order to monitor plasma dilution. Rapid fluctuations of TPP of an average magnitude of 12% were observed in all studies independently of posture or travel. They did not result from artefactual dilution due to fluid infusion. Seventy percent of the individual 24-h TPP patterns showed significantly higher TPP concentrations during ambulation than during recumbency, and a circadian rhythm with an acrophase during daytime could be detected in 21 of 34 profiles. These data thus generally support the concept of posture dependence of TPP daily variations. Transient disruptions (abolished or reversed differences between ambulation and recumbency TPP levels and/or absence or reversal of circadian rhythm) of the 24-h TPP pattern was observed in 7 of the 9 profiles obtained 1 day after the flights and was more severe after the eastward shift. It is suggested that the prolonged ambulation periods as well as the change in the type of ambulatory activity involved in commercial airline transportation caused the delay in the resumption of the usual circadian pattern of TPP levels. The time of maximal secretion (acrophase) and the quiescent period of the 24-h pattern of ACTH and cortisol adapted differentl, SCOPUS: ar.j, info:eu-repo/semantics/published