Cardiomyopathy, Hypertrophic ; surgery ; Catheter Ablation ; Child, Preschool ; Humans ; Infant ; Myocardium

Anthracosis ; diagnosis ; Diagnostic Errors ; Humans ; Lung Diseases ; diagnosis ; Male ; Middle Aged ; Pulmonary Artery

Objective: To optimize the preparation technology of Cuscutae Semen herb stir-baking process with salt, taking the contents of total flavornoids and polysaccharides and the percentage of water and alcohol-soluble components as indexes. Methods: UV-spectrophotometry and uniform design were applied to determine the contents of total flavornoids and polysaccharides which were extracted from Cuscutae Semen. And the stir-baking process with salt was optimized by nonlinear regression and contour map. Results: The best preparation technology was satisfied with some conditions as follows: its adding salt 2%, immersing time 60 min, baking temperature 170°C, and baking time 60 min. Conclusion: The uniform design and regression analysis are notable and reasonable, which could precisely forecast the results.

Cardiomyopathy, Restrictive ; diagnosis ; surgery ; Diagnosis, Differential ; Humans ; Infant ; Male

OBJECTIVE:To compare the effects of Qili qiangxin capsules and Compound danshen drop pills on related indexes of acute myocardial infarction(AMI)patients without reflow after percutaneous coronary intervention(PCI). METHODS:A total of 90 AMI patients without reflow after PCI were randomly divided into Compound danshen drop pills group (45 cases) and Qili qiangxin capsules group(45 case). Both groups were given Aspirin chewable tablets 300 mg and Clopidogrel sulfate tablets 300 mg before PCI. After surgery,both groups were given Aspirin chewable tablets 100 mg,once a day+simvastatin chewable tablets 10 mg,once a day. Based on it,Compound danshen drop pills group was given Compound danshen drop pills,10 pills,3 times a day. Qili qiangxin capsules group was given Qili qiangxin capsules,4 capsules,3 times a day. Both groups were treated for consec-utive 6 months. The blood flow classification of TIMI,LEVF,β1-AR,β2-AR,α1-AR,bleeding and the occurrence of major cardio-vascular events were observed in 2 groups before and after treatment. The occurrence of ADR was recorded. RESULTS:Bafore treatment,there was no statistical significance in the blood flow classification of TIMI,the levels of β1-AR,β2-AR and α1-AR be-tween 2 groups(P>0.05). After treatment,the case number of 0-2 degree blood flow classification of TIMI in 2 groups were signif-icantly lower than before treatment while the case number of 3 degree were significantly higer than before treatment;the levels ofβ1-AR,β2-AR and α1-AR were significantly lower than before treatment,while LEVF was significantly higher than before treatment;LEVF of Qili qiangxin capsules group was significantly higher than that of Compound danshen drop pills group,with statistical signifi-cance (P<0.05). There was statistical significance in the incidence of bleeding and major cardiovascular events between 2 groups (P>0.05). No obvious ADR was found in 2 groups during treatment. CONCLUSIONS:Qili qiangxin capsules is similar to Com-pound danshen drop pills in improving no-reflow efficacy and safety of AMI patients after PCI,but it is better than Compound dan-shen drop pill in improving cardiac function.

Objective To investigate the bone metabolism of children with leukemia and its relationship to tumor necrosis factor-?(TNF-?)pre-and post-treatment.Methods Serum bone gla protein(BGP),the excretion rate of urianry deoxypyridinoline(DPD)and TNF-? were measured in 35 children with leucocythemia pre-and post-treatment and 30 normal children(control group).Results The results showed that BGP,the excretion rate of DPD and TNF-? in children with leucocythemia before treatment were significantly higher than those in control group.However,the excretion rate of DPD decreased after chemotherapy but still significantly higher than that of control group(P0.05).Conclusions In children with leukemia,there are bone absorption and bone dissolution before chemotherapy,while there is osteogenesis dysfunction and bone absorption after chemotherapy.TNF-? can be used as a parametre for evaluating treatment effect and monitoring relapse.

Adolescent ; Anti-Asthmatic Agents ; therapeutic use ; Asthma ; blood ; drug therapy ; Child ; Child, Preschool ; Female ; Glucocorticoids ; therapeutic use ; Humans ; Infant ; Interleukin-23 ; blood ; Male

Background Neurotransmitter secretion disorder induced by chronic manganese poisoning has always been one of the important causes of body injury, but the mechanism of neurotransmitter secretion disorder caused by manganese is not clear at present. Objective To investigate the effects of presynaptic membrane intracellular protein 13-1 (Munc13-1) and synapse fusion protein binding protein 18-1 (Munc18-1) on dopamine secretion dysfunction induced by manganese chloride (MnCl₂) in human neuroblastoma (SH-SY5Y) cells. Methods A SH-SY5Y cell model induced by MnCl₂ was established. Cell viability was measured by MTT assay. Four experimental groups were set up: control group and low-, medium-, and high-dose manganese groups (0, 100, 200, and 400 μmol·L⁻¹ MnCl₂). They were treated with corresponding doses of MnCl₂ for 24 h. The secretion of dopamine was measured by enzyme-linked immunosorbent assay. The mRNA expression of Syntaxin-1 was detected by real-time quantitaive PCR. Total cell proteins were extracted, and the protein expression levels of Munc13-1, Munc18-1, and Syntaxin-1 were detected by Western blotting. The correlations of MnCl₂ exposure and dopamine secretion with the protein expressions of Munc13-1 and Munc18-1 were also analyzed by Pearson correlation. Results Compared with the control group, the cell viability rate decreased gradually with the increase of manganese exposure concentration, and the difference between the medium- and the high-dose manganese groups was statistically significant (P<0.05). The concentration of dopamine in cell culture medium of all manganese exposure groups decreased with the increase of manganese concentration, and compared with the control group and the low-dose manganese group, the medium- and the high-dose manganese groups were statistically significant (P<0.05). The expression of Syntaxin-1 at mRNA or protein level did not change significantly among groups (P>0.05). Compared with the control group, the protein expression of Munc13-1 decreased and that of Munc18-1 increased with the increase of manganese concentration (P<0.05). Compared with the low-dose manganese group, the changes of Munc13-1 protein in the high-dose manganese group and Munc18-1 protein in the medium- and high-dose manganese groups had statistical significance (P<0.05). Compared with the medium-dose manganese group, the protein changes of Munc18-1 in the high-dose manganese group were statistically significant (P<0.05). The correlation analysis showed that MnCl₂ dose was negatively correlated with Munc13-1 protein expression (r=−0.898, P<0.05), and positively correlated with Munc18-1 protein expression (r=0.678, P<0.05). Dopamine secretion was positively correlated with Munc13-1 protein expression (r=0.932, P<0.05), and negatively correlated with Munc18-1 protein expression (r=−0.817, P<0.05). Conclusion The inhibition of dopamine secretion in SH-SY5Y cells induced by manganese exposure is related to up-regulation of Munc18-1 and down-regulation of Munc13-1 expression levels, which may be one of the reasons for nerve injury caused by manganese.

Angiolymphoid Hyperplasia with Eosinophilia ; pathology ; Forehead ; pathology ; Humans ; Male ; Middle Aged ; Parotid Gland ; pathology

Objective To evaluate the influence of different field-strength magnets(1.5 T and 3.0 T)on MRI artifacts caused by Ni-Cr alloy fixed prostheses.Methods The crown,bridge and upper denture fixed prostheses with different thickness were produced by Ni-Cr alloy as test samples,and were one by one put on the centre of water phantom for MR scanning with different field-strength magnets(1.5 T and 3.0 T).The artifact areas on these two field-strength magnets were measured and statistically compared.The plastic prostheses with the same shape and thickness as the test samples were served as controls.Results Ni-Cr alloy fixed prostheses could cause MRI artifacts,and the artifact areas increased with the mass of prostheses.However,no artifact area was found in controls.Compared with those on 1.5 T magnet,the MRI artifact areas significantly increased on 3.0 T magnet(P