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排序方式: 共有400条查询结果,搜索用时 234 毫秒
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de Carvalho CP Marin DM de Souza AL Pareja JC Chaim EA de Barros Mazon S da Silva CA Geloneze B Muscelli E Alegre SM 《Obesity surgery》2009,19(3):313-320
Background It has been proposed that there is improvement in glucose and insulin metabolism after weight loss in patients who underwent
diet restriction and bariatric surgery.
Methods Eleven normal glucose tolerant (NGT) morbidly obese patients [body mass index (BMI), 46.1 ± 2.27 g/m2] and eight abnormal glucose metabolism (AGM) obese patients (BMI, 51.20 kg/m2) were submitted to diet-restriction and bariatric surgery. Prospective study on weight loss changes, over the glucose, insulin
metabolism, glucagon-like peptide-1 (GLP-1), and adiponectin levels were evaluated by oral glucose tolerance test during three
periods: T1 (first evaluation), T2 (pre-surgery), and T3 (9 months after surgery).
Results Insulin levels improved after surgery. T1 was 131.1 ± 17.60 pmol/l in the NGT group and 197.57 ± 57.94 pmol/l in the AGM group,
and T3 was 72.48 ± 3.67 pmol/l in the NGT group and 61.2 ± 9.33 pmol/l in the AGM group. The major reduction was at the first
hour of the glucose load as well as fasting levels. At 9 months after surgery (T3), GLP-1 levels at 30 and 60 min had significantly
increased in both groups. It was observed that the AGM group had higher levels of GLP-1 at 30 min (34.06 ± 6.18 pmol/l) when
compared to the NGT group (22.69 ± 4.04 pmol/l). Homeostasis model assessment of insulin resistance from the NGT and AGM groups
had a significant reduction at periods T3 in relation to T1 and T2. Adiponectin levels had increased concentration in both
groups before and after surgical weight loss. However, it did not have any statistical difference between periods T1 vs. T2.
Conclusions Weight loss by surgery leads to improvement in the metabolism of carbohydrates in relation to sensitivity to the insulin,
contributing to the reduction of type 2 diabetes incidence. This improvement also was expressed by the improvement of the
levels of adiponectin and GLP-1. 相似文献
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Jorge SE Kimura EM Oliveira DM Ogo S Albuquerque DM Costa FF Sonati Mde F 《Hemoglobin》2007,31(2):151-157
Three novel alpha-globin variants were found during a screening program for hemoglobinopathies in blood donors at the UNICAMP Hematology and Hemotherapy Center, Campinas, State of S?o Paulo, Southeastern Brazil. They were named for the town of origin of the carrier as Hb Itapira [alpha30(B11)Glu-->Val], Hb Bom Jesus da Lapa [alpha30(B11)Glu-->Ala] and Hb Boa Esperan?a [alpha16(A14)Lys-->Thr]. Hb Itapira, like Hb Bom Jesus da Lapa, shows an electrophoretic mobility similar to that of Hb S [beta6(A3)GluVal, GAG-->GTG] at alkaline pH; it is associated with a triplicate alpha-globin allele (alphaalphaalpha(anti 3.7)) and corresponds to only 5.5% of the total hemoglobin (Hb). Hb Boa Esperan?a, found in two different individuals, moves faster than Hb A and exhibits an abnormal functional performance. 相似文献
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Mirian Salvadori Bittar Guaranha Patrícia da Silva Sousa Gerardo Maria de Araújo-Filho Katia Lin Laura Maria Figueiredo Ferreira Guilhoto Luís Otávio Sales Ferreira Caboclo Elza Márcia Targas Yacubian 《Epilepsia》2009,50(11):2446-2455
Purpose: Studies suggest that higher cognitive functions could precipitate seizures in juvenile myoclonic epilepsy (JME). The present study aimed to analyze the effects of higher mental activity on epileptiform discharges and seizures in patients with JME and compare them to those of habitual methods of activation.
Methods: Seventy-six patients with JME (41 female) underwent a video-EEG (electroencephalography) neuropsychologic protocol (VNPP) and habitual methods of activation for 4–6 h.
Results: Twenty-nine of the 76 (38.2%) presented provocative effect, and inhibition was seen in 28 of 31 (90.3%). A mixed effect was observed in 11 (35.5%), and 30 patients (39.5%) suffered no effect of VNPP. Action-programming tasks were more effective than thinking in provoking epileptiform discharges (23.7% and 11.0% of patients, respectively, p = 0.03). Inhibitory effect was observed equally in the various categories of tasks, except in mental calculation, which had a higher inhibitory rate. Habitual methods of activation were more effective than VNPP in provoking discharges. Anxiety disorders were diagnosed in 24 of 58 patients (41.4%); anxious patients had greater discharge indexes and no significant inhibitory effect on VNPP.
Discussion: Praxis exerted the most remarkable provocative effect, in accordance with the motor circuitry hyperexcitability hypothesis in JME. Inhibitory effect, which had no such task specificity, might be mediated by a widespread cortical–thalamic pathway, possibly involving the parietal cortex. The frequent inhibitory effect found under cortical activation conditions, influenced by the presence of anxiety, supports nonpharmacologic therapeutic interventions in JME. 相似文献
Methods: Seventy-six patients with JME (41 female) underwent a video-EEG (electroencephalography) neuropsychologic protocol (VNPP) and habitual methods of activation for 4–6 h.
Results: Twenty-nine of the 76 (38.2%) presented provocative effect, and inhibition was seen in 28 of 31 (90.3%). A mixed effect was observed in 11 (35.5%), and 30 patients (39.5%) suffered no effect of VNPP. Action-programming tasks were more effective than thinking in provoking epileptiform discharges (23.7% and 11.0% of patients, respectively, p = 0.03). Inhibitory effect was observed equally in the various categories of tasks, except in mental calculation, which had a higher inhibitory rate. Habitual methods of activation were more effective than VNPP in provoking discharges. Anxiety disorders were diagnosed in 24 of 58 patients (41.4%); anxious patients had greater discharge indexes and no significant inhibitory effect on VNPP.
Discussion: Praxis exerted the most remarkable provocative effect, in accordance with the motor circuitry hyperexcitability hypothesis in JME. Inhibitory effect, which had no such task specificity, might be mediated by a widespread cortical–thalamic pathway, possibly involving the parietal cortex. The frequent inhibitory effect found under cortical activation conditions, influenced by the presence of anxiety, supports nonpharmacologic therapeutic interventions in JME. 相似文献
26.
Katia Lin Henrique Carrete Jr Jaime Lin Mirella Maccarini Peruchi Gerardo Maria De Araújo Filho Mirian Salvadori Bittar Guaranha Laura Maria Figueiredo Ferreira Guilhoto Américo Ceiki Sakamoto Elza Márcia Targas Yacubian 《Epilepsia》2009,50(5):1191-1200
Purpose: To investigate the cerebral metabolic differences between patients with juvenile myoclonic epilepsy (JME) and normal controls and to evaluate to what extent these metabolic alterations reflect involvement of an epileptic network. Methods: Sixty patients with JME were submitted to multi‐voxel proton spectroscopy (1H‐MRS) at 1.5 T over medial prefrontal cortex (MPC), primary motor cortex (PMC), thalamus, striatum, posterior cingulate gyrus (PCG), and insular, parietal, and occipital cortices. We determined ratios for integral values of N‐acetyl‐aspartate (NAA) and glutamate‐glutamine (GLX) over creatine‐phosphocreatine (Cr). The control group (CTL) consisted of 30 age‐ and sex‐matched healthy volunteers. Results: The NAA/Cr ratio, a measure of neuronal injury, was reduced in PMC, MPC, and thalamus among patients. In addition, they had an altered GLX/Cr ratio, which is involved in excitatory activity, on PMC, MPC, and PCG, where it was reduced, whereas it was increased on insula and striatum. Multiple regression analysis revealed the strongest correlation between thalamus and MPC, but the thalamus was also correlated with insula, occipital cortex, and striatum among patients. Lower NAA/Cr was observed with advancing age and duration of epilepsy, regardless of frequency of seizures and antiepileptic drug therapy in thalamus and frontal cortex. Discussion: The identification of a specific network of neurochemical dysfunction in patients with JME, with diverse involvement of particular structures within the thalamocortical circuitry, suggests that cortical hyperexcitability in JME is not necessarily diffuse, supporting the knowledge that the focal/generalized distinction of epileptogenesis should be reconsidered. Furthermore, evidence is provided toward progressive neuronal dysfunction in JME. 相似文献
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Marin MJ Oliveira LR Ilias M Higa Ede F 《Revista latino-americana de enfermagem》2007,15(6):1065-1071
Considering the importance of people participating in the construction of new health models, this study aimed to characterize and analyze contributions brought by community to health actions carried out in a Family Health Unit. It is a documentary analysis based on the records of 24 monthly meetings between the team and community. After reading the records, subject was divided into four themes: material and human resources, availability to secondary level health services, community adherence to the unit activities, health promotion and disease prevention. Discussions opened a wide perspective on health and stimulated co-responsibility, stronger links and information exchanging. Nevertheless, there is a need to improve community effective participation in the co-management of the health system. 相似文献