ABSTRACT
RESUMO: Partindo do pressuposto freudiano no qual a melancolia se enquadra entre as neuroses narcísicas em oposição às neuroses de transferência, pretende-se apresentá-la no ensino de Lacan, entendendo-a como uma estrutura clínica psicótica. A melancolia é abordada como sendo um efeito de estrutura em função da não separação do objeto a, que fica (des)velado, a partir da foraclusão do Nome-do-Pai. Destaca-se o papel do supereu através do objeto voz.
ABSTRACT: Based on the Freudian assumption in which melancholy is included among the narcissistic neuroses in opposition to the transference neuroses, it is intended to present it in Lacan's teaching, understanding it as a psychotic clinical structure. Melancholy is approached as a structure effect due to the non-separation of the object a, which is (un)veiled from the foreclosure of the Name-of-the-Father. The role of the superego through the voice object is highlighted.
Subject(s)
Psychoanalysis , Psychotic Disorders , Depressive DisorderABSTRACT
Background: Tumour volume at therapy initiation, Vi, is rarely available in cancer patients, and the last pre-treatment tumour volume available is from previous diagnostic imaging (Vd). Therapeutic efficacy is thus evaluated by comparing tumour volume after treatment with Vd, instead of Vi, which results in underestimation of treatment efficacy. Vi, together with Vd, can also be used for estimation of the natural growth rate of tumour valuable for, e.g., screening programs, prognostication and individualised treatment planning such as chemotherapy scheduling. The aim of this work was to study the feasibility of estimating Vi by back-extrapolating the post-therapy regression of tumour volume, based on data from animal model. Methods: Nude mice bearing human neuroendocrine GOT1 tumour cell line were treated with 177Lu-DOTA-TATE. Tumour volumes were measured regularly after therapy and Vi was estimated by back-extrapolation of (a) linear and (b) exponential regression lines of the two earliest post-therapy tumour volumes and (c) the long-term exponential regression of tumour volume. The estimated Vi values (Vest) were compared with the measured volume of tumour at therapy initiation. Results: The linear regression of the two earliest post-therapy tumour volumes gave the best estimate for Vi (Vest = 0.91 Vi, p < 0.00001), compared with the exponential regression models either on short-term (Vest = 2.30 Vi, p < 0.01), or long-term (Vest = 0.93 Vi, non-significant) follow up of tumour volume after therapy. Conclusion: Back-extrapolation of the early linear regression of tumour volume after therapy gave the best estimate for tumour volume at time of therapy initiation. This estimate can be used as baseline for treatment efficacy evaluation or for estimation of the natural growth rate of tumour (together with the measured tumour volume at pre-treatment diagnostic imaging)
Subject(s)
Animals , Rats , Diagnostic Imaging , Carcinoma, Neuroendocrine , Cell Line, Tumor , NeoplasmsABSTRACT
El objetivo de este trabajo es determinar si las transaminasas hepáticas tienen valor como pruebas complementarias que orienten el diagnóstico de hepatitis B y C, en donantes de sangre con anticuerpos positivos por el método ELISA a estas infecciones virales; teniendo en cuenta que las pruebas confirmatorias como el inmunoensayo recombinante (RIBA) o la prueba de ácidos nucleicos por técnicas moleculares como PCR (RNA HCV) para hepatitis C y DNA viral (PCR) para hepatitis B no se realizan aún en nuestro país debido a sus elevados costos. Se busca sumar esfuerzos en salud pública desde los bancos de sangre debido a la trascendencia de llegar a un diagnóstico en los donantes seropositivos, que hayan sido captados en el tamizaje, para prevenir la propagación de estas hepatitis. Se realizaron pruebas serológicas para hepatitis C, anticuerpos frente al antígeno del core de la hepatitis B y determinaciones de los niveles de GPT o ALT (Transaminasa Glutámica Pirúvica o Alanina Amino Transferasa), GOT o AST (Transaminasa Glutámico Oxalacética o Aspartato Amino Transferasa) en 236 donantes de sangre seropositivos para hepatitis B y C del Banco de Sangre del Hospital de Clínicas de la Universidad Nacional de Asunción-Paraguay. Las transaminasas elevadas fueron clasificadas de acuerdo a los marcadores serológicos positivos para hepatitis B y C, encontrándose niveles elevados en un 13.9% de individuos con anti-HBc, 40% en individuos con anti HCV y 2 de 7 casos en individuos con serología positiva para ambos marcadores serológicos. Casi la mitad de los donantes con marcador serológico positivo para anti HCV presentan elevación de las transaminasas.
The aim of this study was to determine if liver transaminases had value as complementary tests to orientate the diagnosis of hepatitis B and C in blood donors with positive antibody to these viral infections by the EIA method, considering that confirmatory tests such as the recombinant immunoassay (RIBA) or nucleic acid test by molecular techniques such as PCR (HCV RNA) for hepatitis C and viral DNA (PCR) for hepatitis B are not performed in our country due to their high costs. We are looking for joining efforts in public health from the blood banks due to the importance of reaching a diagnosis of seropositive donors who have been detected in the screening to prevent the spread of hepatitises. Serologic tests for hepatitis C, antibodies against the core antigen of hepatitis B and determinations of the levels of ALT or GPT (Alanine aminotransferase or Glutamic pyruvic transaminase), AST or GOT (Aspartate aminotransferase or Glutamic oxalacetic transaminase) were carried out in 236 blood donors seropositive for hepatitis B and C of the Blood Bank of the Hospital de Clinicas, National University of Asuncion, Paraguay. Elevated transaminases were classified according to the positive serological markers for hepatitis B and C finding high levels in 13.9% in donors with anti-HBc, 40% in donors with anti HCV and two of seven cases in donors with positive serology for both serological markers. Almost half of the donors with positive serologic marker for anti HCV had elevated transaminases.
Subject(s)
Aspartate Aminotransferases , Blood Banks , Blood Donors , Hepatitis B Antibodies , Hepatitis C AntibodiesABSTRACT
A padronização da indução de estresse oxidativo com a mstura de Fenton em rim isolado perfundido de rato e a avaliação do efeito antioxidante das flores de Nelumbo nucifera em rim isolado de rato oxidativamente estressado são realizadas no presente estudo. Seis grupos de rim isolado perfundido de rato foram utilizados para o presente estudo. O grupo I de rins recebeu veículo. O grupo II de rins foi oxidativamente estressados com a mistura de Fenton. Os grupos III e IV de animais foram tratados com duas doses graduais de extrato após a administração da mistura de Fenton. Os grupos V e VI de rins foram perfundidos com duas doses graduais de extrato sem a mistura de Fenton. A mistura de Fenton causou estresse oxidativo com diferença significativa de malondialdeído (TBARS), glutationa reduzida (GSH), glutationa peroxidase (GPx), catalase, glutamato oxaloacetato transaminase (GOT) e glutamato piruvato transaminase (GPT) (p<0,05) em ratos doentes. No tratamento dos animais com extrato, o estresse oxidativo foi diminuído com aumento nos antioxidantes e as enzimas marcadoras mantiveram o nível normal. Este efeito do extrato foi dependente da dose. Em conclusão, a mistura de Fenton desenvolveu o estresse oxidativo em rim isolado perfundido de rato e o extrato das flores de Nelumbo nucifera apresenta atividade antioxidante no rim isolado perfundido oxidativamente estressado.
Standardization of induction of oxidative stress with Fenton mixture in isolated perfused rat kidney and evaluation of antioxidant effect of Nelumbo nucifera flowers in isolated oxidatively stressed rat kidney are carried out in present study. Six groups of isolated perfused rat kidney were used for the present study. Group I kidneys were received vehicle. Group II kidneys were oxidatively stressed with Fenton mixture. Group III and IV animals were treated with two graded doses of extract after the administration of Fenton mixture. Group V and VI kidneys were perfused with two graded doses of extract without Fenton mixture. Fenton mixture was found to cause oxidative stress with significant difference of malondialdehyde (TBARS), Reduced glutathione (GSH), Glutathione peroxidase (GPx), catalase, Glutamate Oxaloacetate Transaminase (GOT) and Glutamate Pyruvate Transaminase (GPT) (p<0.05) in diseased rats. On treating animals with extract, the oxidative stress was decreased with increase in antioxidants and the marker enzymes were found to maintain the normal level. This effect of extract was found to be dose dependent. In conclusion, Fenton mixture developed the oxidative stress in isolated perfused rat kidney and Nelumbo nucifera flowers extract exhibits antioxidant activity in that oxidatively stressed isolated perfused kidney.
ABSTRACT
Present study was conducted to investigate the effects of exercise and cholesterol diet on plasma and liver lipids, platelet aggregation, erythrocyte Na efflux and liver index such as GOT and GPT using Sprague Dawley rats. Forty rats were divided into four groups and fed control or 0.5% cholesterol diet with and without treadmill for six weeks. The final body weight of group fed cholesterol diet with exercise was somewhat decreased compared with group fed cholesterol diet without exercise. L.W/B.W ratio was significantly increased in groups fed cholesterol diet (p < 0.01), but exercise tended to decrease this ratio. Plasma total cholesterol was significantly increased and HDL-cholesterol was decreased in groups fed cholesterol diet (p < 0.01). Plasma triglyceride was significantly decreased in groups fed cholesterol diet compared with groups fed control diet (p < 0.01). Plasma triglyceride of groups with exercise was significantly decreased compared with their non exercising counterparts regardless diet (p < 0.05). Liver total cholesterol and triglyceride was significantly increased in groups fed cholesterol diet (p < 0.01), but exercise did not affect on these levels. Na-K ATPase was somewhat decreased in groups fed cholesterol diet, and exercise tended to recover the reduced Na-K ATPase. Na passive transport was significantly decreased in group fed control diet without exercise and significantly increased in group fed cholesterol diet with exercise, there were significant differences between groups (p < 0.05). There were no differences in total Na efflux and intracellular Na among groups, and total Na efflux was not correlated with intracellular Na. Hematocrit was significantly lower (p < 0.05) in group fed cholesterol diet without exercise compared with other groups. Platelet aggregation in the initial slope and the maximum was increased in groups fed cholesterol diet, but not statistically significant. Exercise especially increased the initial slope of aggregation. Plasma GOT and GPT was significantly increased in groups fed cholesterol diet (p < 0.01), and exercise in group fed cholesterol diet significantly decreased both GOT and GPT compared with the non exercising counterpart (p < 0.01). This study showed that cholesterol diet increases plasma and liver lipids and GOT and GPT, and exercise improves plasma and liver lipid profile and liver index of GOT and GPT preventing fatty liver.
Subject(s)
Animals , Rats , Adenosine Triphosphatases , Blood Platelets , Body Weight , Cholesterol , Diet , Erythrocytes , Fatty Liver , Hematocrit , Liver , Plasma , Platelet Aggregation , Rats, Sprague-DawleyABSTRACT
This study was conducted to investigate the effect of different kinds of traditional Korean soybeans on blood and liver lipids and lipid peroxidation. SD male rats (n =48 )were assigned to six different groups and provided expe-rimental diets for 28 days. The protein source of the diet was casein, isolated soy protein (ISP ), or casein plus traditional soy powders (yellow bean, huktae, jinuni or seorietae ). The ISP, jinuni and seorietae diet decreased blood triglyceride compared to casein group. The ISP groups had lower hepatic total lipid and triglycerides than casein groups. The yellow bean and seorietae group had hepatic lipid lowering effects, but the effect was not found in huktae and jinuni group. The glutamate-oxaloacetate transaminase activity was significantly decreased in ISP and jinuni groups than in casein group. The glutamate-pyruvate transaminase activity was also decreased in ISP group. The results of this study suggest that jinuni, yellow bean and seorietae groups are more effective in lowering body lipids than huktae group.
Subject(s)
Animals , Humans , Male , Rats , Caseins , Diet , Lipid Peroxidation , Liver , Powders , Soybean Proteins , Glycine max , TriglyceridesABSTRACT
The preparation method of a soluble dietary fiber from oak wood (Quercus mongolica) and the effect of the soluble dietary fiber on physiological function in rat fed high cholesterol diets was investigated. The best condition for steam explosion method was 25 kgf/cm3 pressure for 6 min. The exploded samples were delignified by the filtration treatment with 1% NaOH for several times, which is the best condition. The enzymatic hydrolysis of Cellusoft cellulase was more effective than Onozuka R-10 cellulase. The manufactured soluble dietary fiber was assayed using gel permeation chromatography (GPC) and it was dissolved in water. Average molecular weight distribution of manufactured soluble dietary fiber was about 348-1,200 and it was assumed the oligomer form fraction. In order to compare the manufactured soluble dietary fiber with commercial soluble dietary fiber (pectin) on the physiological function, Sprague-Dawley male rats weighing 100+/-10 g were randomly assigned to one normal diet and five high cholesterol diet containing 1% cholesterol. The high cholesterol diet groups were classified to fiber free diet (FF group), 5% pectin (5P group), 10% pectin (l0P group), 5% manufactured soluble dietary fiber (5M group) and 10% manufactured soluble dietary fiber (10M group). Body weight gains in all soluble dietary fiber groups were lower than FF group. Food intakes were increased in all soluble dietary fiber groups than that of FF group. Food efficiency ratio (FER) was significantly decreased in all soluble dietary fiber groups than that of the FF group, and it was especially was highest in 10% supplemented soluble dietary fiber group. The weight of liver of the soluble dietary fiber supplemented groups were lower than those of the FF group, but weights of cecum and small intestine of all supplemented soluble dietary fiber groups were significantly increased, compared with that of FF group. The weights and water contents in feces were significantly increased by the soluble dietary fiber. The activity of the glutamic oxaloacetic transaminase in soluble dietary fiber groups were significantly decreased than those of FF group. The hepatic glutathione S-transferase activity in all soluble dietary fiber supplemented groups were higher than that of FF group. The physiological effects of the manufactured soluble dietary fiber are the same as the commercial soluble dietary fiber (pectin). The preparation method of the soluble dietary fiber from the oak chips suited to its purpose.
Subject(s)
Animals , Humans , Male , Rats , Aspartate Aminotransferases , Body Weight , Cecum , Cellulase , Cholesterol , Chromatography, Gel , Diet , Dietary Fiber , Explosions , Feces , Filtration , Glutathione Transferase , Hydrolysis , Intestine, Small , Liver , Molecular Weight , Rats, Sprague-Dawley , Steam , Water , Weights and Measures , WoodABSTRACT
The purpose of this study is to make clear a comprehensive relationship between serum transaminase activity and food intake pattern. A total of 146 young male student participated in the study.<BR>The results of the survey were as follows:<BR>1) The first factor (Fl) was a“animal-related food factor”. The second factor (F2) was considered to be a“rice versus noodles factor”. The third (F3), fourth (F4), fifth (F5) and sixth (F6) factor could not be explained simply in terms of their factor.<BR>2) Significantly negative correlations were observed between SGOT and the factor scores of Fl (r=-0.256, p<0.01), SGPT and the factor scores of Fl (r=-0.243, p<0.01), and SGPT and factor scores of F2 (r=-0.195, p<0.05), but not between SGOT or SGPT and other factors.
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The protective effect of TGPs on acute liver damage induced by carbon tetrachloride ( CCl4 ) was investigated in mice . TGPs ( 40 or 80mg/kg?d ? 3d, ip ) reduced the elevation of plasma or serume gl- utamic pyruvic transaminase ( GPT ) and plasma lactate dehydroge-nase ( LDH ) in CCl4-intoxicated mice, but if had no significant influence on the elevation of plasma glutamic oxalacetic transaminase ( GOT).TGPs (40mg/kg?d ? 3d, ip ) showed a protective effect on the histopathologic changes of liver injury induced by CCl4. The results suggest that TGPs may a protect against hepatic damage.
ABSTRACT
Objective: The effect of oil of Hippophae rhamnoides (OHR) supplements on sGOT,metabolism of free radical and ultrastructure of myocardium was observed in mice.Methods: 70 male ICR mice were randomly divided into six groups: sedentary control group (SCG), sedentary+OHR group (SHG), immediately after exhaustive exercise in control group (IEC) and in OHR group (IEO), 24 hours recovery after exhaustive exercise in control group (REC) and in OHR group (REO). After 6 w swimming program with gradually increasing intensity, these mice carried out an exhaustive swimming before sacrifice. Serum GOT, SOD and MDA in myocardium were measured and the changes of ultrastructure of myocardium were observed by transmission electron microscope (TEM). Results: 1) Serum GOT was significantly different among these groups except between SCG and SHG, IEC and REC. 2) SOD was significantly different among the above groups except between SCG and SHG, IEO and REO. 3) The concentration of MDA was significantly different among the above groups except between IEC and IEO, REC and REO. 4) The integrity of mitochondrion, rough surfaced endoplasmic reticulum and myofilament in myocardium was better in OHR groups than in control groups and the pathological tendency of these ultrastructures was lighter in OHR groups compared with control groups. Conclusion: OHR supplementation can reduce the damage of myocardium caused by exercise and enhance antioxidative status of myocardium; OHR supplementation can protect the ultrastructure of myocardium.
ABSTRACT
To evaluate the effect of vitamin E on GPT, GOT and LDH activity of cold exposed rats, young male rats (70-100g body weight) were randomly divided into Ⅰ-Ⅲ groups. All the animals were fed on basic ration. The group I was given vitamin E 5mg (5mg/ml) intraperitoneally once every other day for 10 days. After the vitamin E treatment, group Ⅰ and Ⅲ were kept in a cold chamber (-1?1℃) and group Ⅱ at room temperature (20?1℃) for 48 hours. At the end of experimental period, serum GPT, GOT and LDH activity of all animals were analyzed. According to the data, the GPT, GOT and LDH activity were increased significantly in group I than in groups Ⅰ and Ⅱ. These results suggested that the vitamin E may have the efficiency of maintaining the structural integrity of the cells of cold exposed animals.