Objective To assess the efficacy and safety of ketogenic diet(KD) on refractory epilepsy in children.Methods KD treatment was designed to observe the effects for 12 weeks.Totally 22 children with 16 boys and 6 girls were enrolled in the study.The epileptic syndromes included infantile spasms(13 cases),Lennox-Gastaut syndrome(4 cases),Dravet syndrome(2 cases),and the unclassified(3 cases).The KD was prepared according to the modified Johns Hopkins regimen.Urinary ketones were measured every day to ensure that ketosis state and parents′ diaries were kept to find out when it started to work and the change of seizure frequency.Effects of KD was evaluated by Engel standard.Blood chemistry was done at baseline,4 weeks and 12 weeks to analyze the effects of KD on metabolism.Side effects were monitored and treated.Results All cases completed the KD regimen for at least 2 weeks,19 cases for at least 4 weeks,and 10 cases for at least 12 weeks.Sixteen out of 22 children experienced the seizure reduction within 3 weeks(1-15 d),especially in the first week,and seizure free appeared within 5 weeks(1-32 d) in 8 cases.Overall,the diet achieved the seizure-free in 36.4%(8/22 cases) and an over 90% of seizure frequency reduction in 22.7%(5/22 cases).The efficacy of KD seemed not correlated with the sex,age,etiopathogenisis,and syndromes and so on.Blood chemistry suggested a normal range of glucose level at 4 weeks,though higher than that at the baseline.The blood triglyceride and total cholesterol level at 12 weeks increased strikingly,even beyond the normal range compared with the baseline.The side effects mainly including transient gastrointestinal symptoms and metabolic disturbances were mostly tolerable.Conclusions KD is probably a feasible therapy on refractory epilepsy in children,with quick and high efficacy and few side effects.

Medicine, Chinese Traditional ; methods

Objective To investigate the effects of Helicobacter priori (H.prlori) strains from the patient with gastric cancer on the expression of DNA mismatch repair (MMR) genes in AGS cells in vitro. Methods AGS cells were co-cultured with ten strains of H.prlori from five patients with gastric cancer and five patients with gastritis respectively.The expressions of DNA MMR genes (hMSH2 and hMLH1) in mRNA and protein levels were determined by RT-PCR and Western blot.The enteropathogenic E.coli served as a bacterial control.Results E.coli and H.priori strains from gastritis have no effects on the expression of hMSH2 and hMLH1 in both protein and mRNA levels on the whole,while all the H.prlori strains from gastric cancer reduced expression levels of hMSH2 and hMLH1.Conclusions There are different effects between H. prlori strains from gastric cancer and those from gastritis on DNA MMR in AGS cell line,indicating that infec- tion of some H.prlori strains might lead to the inhibition of DNA MMR,and that in turns increases the risk of gastric carcinogenesis during chronic H.prlori infection.

To observe the effect of intracarotid administration of adrenomedullin (AM) on the spontaneous electrical activity of area postrema (AP) neurons, 78 spontaneous active units were recorded from 63 sino-aortic denervated Sprague-Dawley rats using extracellular recording technique. The results obtained are as follows. (1) Following intracarotid administration of AM (0.3 nmol/kg), the discharge rate of 47 out of 78 units increased markedly from 2.99+/-0.24 to 4.79+/-0.29 spikes/s (P<0.001), 20 units decreased from 3.24+/-0.46 to 1.97+/-0.37 spikes/s (P<0.001), and the remaining 11 showed no response. Blood pressure (BP) and heart rate (HR) did not change throughout the experimentation. (2) Pretreatment with intracarotid administration of calcitonin gene-related peptide receptor antagonist CGRP8-37 (3 nmol/kg) did not change the effects of AM. (3) Following intracarotid injection of NO precursor L-arginine (30 mg/kg), the excitatory effect of AM was attenuated. The above results indicate that AM can excite spontaneous electrical activity of AP neurons, this effect is not mediated by calcitonin gene-related peptide receptor but may be attenuated by NO precursor L-arginine.
Action Potentials ; physiology ; Adrenomedullin ; pharmacology ; Animals ; Aorta ; innervation ; physiology ; surgery ; Area Postrema ; physiology ; Carotid Sinus ; innervation ; physiology ; surgery ; Denervation ; Injections, Intra-Arterial ; Male ; Neurons ; physiology ; Rats ; Rats, Sprague-Dawley

Objective In 2019, Laboratory of Shanghai Chongming Center for Disease Control and Prevention participated in national assessment of individual dose monitoring capability. By analyzing the results, this report summarizes the experience and shortcomings that will help improve the individual dose monitoring capability of the laboratory. Methods According to the requirements of the national assessment scheme for individual dose monitoring capacity in 2019, the assessment process and results were sorted out and analyzed one by one. Results The single group performance deviations(P_i values)between the measured values and references of the five groups were -0.04, -0.07, -0.05, -0.04 and -0.06, respectively. The overall bias(B value)of all groups was 0.003. According to the judgment standards, both the single group performance and overall performance were all qualified. Conclusion The individual dose monitoring system of the laboratory meets the requirements of the relevant national standards. The individual dose monitoring capability can be further improved by strengthening the quality control of the relevant procedures of the assessment.

ObjectiveTo observe the effect of pulsed electromagnetic fields (PEMFs) on bone mineral density (BMD) of spinal cord injuried (SCI) patients. MethodsThe PEMFs group was composed of 12 SCI patients received regular PEMFs treatment as the treatment group, 12 SCI patients treated without PEMFs were as the control group.BMD of total proximal femur, Ward's trigonum and great trochanter of all patients were detected by dual-energy X-ray absorptiometry before and after treatment.ResultsBMDs of total proximal femur and great trochanter of patients of the treatment group were a little increased after PEMFs treatment, with no significant difference (P>0.05), but BMD change was significantly different compared with the control group (P<0.05～0.01).ConclusionPEMFs treatment along with routine exercise may help to reduce the loss of bone after SCI.

Five field strains of infectious bronchitis virus (IBV) were isolated from suspected flocks from different time and different regions of Shanxi province,respectively,and characterized by a series of systematic identification assays,such as morphological observation by electron-microscope,interfering with the propagation of NDV,virus pathological role to chicken embryo,virus pathological role to SPF chickens,hemagglutination activity,physiscochemical,and reverse transcription polymerase chain reaction(RT-PCR).The results showed:The typical coronavirus which the spherical virions 60-120 nm in diameter and surface covered with spike like corona were observed under electron-microscope)The propagation of NDV strain was seriously interfered by the 5 isolates respectively;The embryonated chicken egg passages of the 5 isolates could dwarf with chicken embryos;The five isolates had no hemagglutination activity,but after treatment with 1% trypsin,it can agglutinate chicken red blood cell.The strains are sensitive to chloroform and ethyl ether.The SPF chickens which inoculated with the 5 isolates showed clinical sign and result in respiratory and kidney diseases,flower-steak,and swollen with severe urate deposition.The specific fragments of N gene of the 5 isolates were amplified by RT-PCR,respectiveiy.On the basis of all above mentioned results,the 5 isolates were classified as IBV.The study got a good preparedness for further study on molecular epidemioogy of the 5 IBV isolates.

0.05).Conclusion Three Hybridoma cell lines which secrete the target antibodies with satisfied affinities and specificities have been successfully raised,which provides a basis to produce a domestic-made HCMVpp65 antigen diagnosis kit.

Based on the 2 x 2 contingency table, by using multi-species relevance (variance ratio, VR), chi2-test, Ochiai index, Dice index, Jaccard index, t-test of v/x and F-test of Morisita, s index, the interspecific relationships and the spatial distribution pattern between 20 dominants in Kangding Zheduo Mountain of Sichuan province were studied. The results indicated that the interspecific association between dominants of Sinopodophyllum hexandrum community in this area did not show significant association, which suggested that the S. hexandrum community was in mature stage, and showed stronger independency, among total 190 pairs in 20 dominant species, 2 species pairs exhibited extremely significantly positive association, 12 species pairs showed significantly positive association, 6 species pairs exhibited significantly negative association and there were no pairs showed extremely significantly negative association. S. hexandrum in community did not show significant association, which indicates they are independent in community, the spatial distribution pattern of S. hexandrum is characterized by random distribution.
Berberidaceae ; classification ; growth & development ; Biodiversity ; China ; Ecosystem ; Endangered Species ; Plants, Medicinal ; classification ; growth & development