This study investigated the influence of neonatal handling on behavioral and biochemical consequences of chronic mild stress (CMS) in adulthood. Male rat pups were submitted to daily tactile stimulation (TS) or maternal separation (MS), from postnatal day 1 (PND1) to postnatal day 21 (PND21), for 10 min/day. In adulthood, half the number of animals were exposed to CMS for 3 weeks and submitted to behavioral testing, including sucrose preference (SP), elevated plus maze (EPM), and defensive burying tasks (DBTs), followed by biochemical assessments. CMS reduced SP, increased anxiety in EPM and DBT, and increased adrenal weight. In addition, CMS decreased plasma vitamin C (VIT C) levels and increased protein carbonyl (PC) levels, catalase (CAT) activity in hippocampus and cortex, and superoxide dismutase (SOD) levels in cortex. In contrast, both forms of neonatal handling were able to prevent reduction in SP, anxiety behavior in DBT, and CMS-induced adrenal weight increase. Furthermore, they were also able to prevent plasma VIT C reduction, hippocampal PC levels increase, CAT activity increase in hippocampus and cortex, and SOD levels increase in cortex following CMS. Only TS was able to prevent CMS-induced anxiety symptoms in EPM and PC levels in cortex. Taken together, these findings show the protective role of neonatal handling, especially TS, which may enhance ability to cope with stressful situations in adulthood.
Haloperidol is the most widely used antipsychotic drug in the treatment of psychiatric disorders. Despite its satisfactory therapeutic effect, its chronic use is related to severe motor side effects. Here, we investigate the incidence of motor side effects of haloperidol-loaded nanocapsules when compared to free haloperidol and the relation with oxidative stress (OS) development. Both vehicle (B-NcFO) and haloperidol loaded polysorbate-coated nanocapsules suspension (H-NcFO) prepared with fish oil as core showed uniform and rounded particles, nanometric size, negative zeta potential, low polydispersity indices and high encapsulation efficiency. Wistar rats received a single dose of free haloperidol (FH), B-NcFO or H-NcFO (0.2 mg/kg ip) and were submitted to acute motor side effects evaluation 1 h after the injection. Lower catalepsy time and oral dyskinesia were observed in H-NcFO-treated group than in FH group; however, both formulations decreased animals' locomotor activity. In a experiment performed subchronically, rats injected daily with H-NcFO (0.2 mg/kg-ip) for 28 days showed decreased oral dyskinesia frequency and catalepsy time and no impairment on locomotor activity as compared to FH group (0.2 mg/kg-ip). FH group showed higher OS, as observed by increased lipid peroxidation and reduced glutathione levels and catalase activity in extrapyramidal region. Our findings showed that nanocapsules may be an efficient form to prevent or minimize haloperidol motor side effects, which are related to OS development, ameliorating psychiatric patients' quality of life.
-Background -The diagnosis of H. pylori infection can be performed by non-invasive and invasive methods.The identification through a fecal antigen test is a non-invasive, simple, and relatively inexpensive test. ) and negative predictive value 73,2% (CI95% 67.5-77.6); Positive likelihood ratio was 4.7 (CI95% 2.9-7.9) and Negative Likelihood Ratio 0.4 (CI95% 0.3-0.5). The prevalence odds ratio for a positive test was 12.3 (CI95% 5.7-26.3). The index kappa between FAT and histology/urease test was 0.53 (CI95% 0.39-0.64). Conclusion -Immunochromatographic FAT is less expensive than the other methods and readily accepted by the patients but its diagnostic performance does not recommend its use in the primary diagnosis, when the patient may have an active infection.
Objetivo: avaliar as toxicidades mais frequentes baseadas nos efeitos do 5-fluorouracil em pacientes com neoplasia colorretal submetidos à quimioterapia com 5-fluorouracil em associação com ácido folínico, oxaliplatina (FOLFOX) e irinotecano (FOLFIRI). Métodos: Estudo transversal conduzido em uma instituição pública brasileira em pacientes com diagnóstico prévio de câncer colorretal que receberam ciclos de quimioterapia infusional durante 48 horas a cada duas semanas, num total de 12 ciclos ou 24 semanas de tratamento. As variáveis estudadas foram obtidas pela revisão dos prontuários, através de um levantamento no serviço de arquivo médico e estatístico (SAME). Resultados: A idade variou de 35 a 84 anos com média total de 60,75 anos, sendo 56,25% do gênero feminino e 43,75% do masculino. As toxicidades mais comumente observadas foram náuseas, dor no estômago e fraqueza muscular. Nenhum paciente se encontrava nos estádios 0 e I, 25% (n= 4) em II, 31,25% (n= 5) em III e 43,75% (n= 7) em IV. Conclusões: Nota-se que as fluorpirimidinas continuam a ser o pilar no tratamento do câncer. Sendo assim, nessa perspectiva a identificação da atividade enzimática da Dihidropirimidina Desidrogenase (DPD) está fortemente relacionada a farmacologia do 5-FU, com isso, a determinação desta enzima antes no início da terapia tem-se demonstrado fundamental para identificar pacientes com alto risco de doença grave e toxicidade potencialmente fatal.
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