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Cerebral artery embolism is a rare but serious complication of facial plastic surgery. This paper reports a case of severe total cerebral arterial fat embolism caused by facial autologous fat injection. The patient past away after 40 hours of treatment. The cause of this total cerebral artery embolism patient was analyzed by tracing relevant medical history and cephalic CTA examination. By studying this case, we hope to reduce the occurrence of similar situations in the future.
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OBJECTIVE To analyze the data of non-invasive prenatal testing based on specific loci of circulating cell-free fetal DNA (cffDNA). METHODS Selected loci of target chromosomes were analyzed by sequence capture and sequencing. Meanwhile, 600 loci were selected from other chromosomes for determining the concentration of cffDNA. RESULTS A total of 768 specific loci were captured on chromosomes 21 and 18, and used to determine whether the two were abnormal. When the minimum concentration of detected cffDNA was set at 3% and the threshold of Z score was set to [-6,6], the specificity of the analysis was 99.37% and the sensitivity was 100%. CONCLUSION A reliable, convenient and low-cost analytical method has been developed. The method requires less sequencing data for non-invasive prenatal testing, and can accurately detect abnormalities of fetal chromosomes 21 and 18, and simultaneously determine the concentration of cffDNA.
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Objective Observe the changes of cytokine and immunoglobulin in children with Hand-foot-and-mouth disease (HFMD) infected by Enterovirus 71 (EV71),to explore the significance of inflammation and immunological mechanisms.Methods A total of 65 cases of children with HFMD by EV71 were taken as the observation group,and 65 cases of healthy children were as the control group in June 2015-August 2016.The serum levels of IL-6,IL-8,TNF-α were detected by enzyme-linked immunosorbent assay (ELISA),and the levels of IgA,IgG,IgM were detected by immune scattering turbidimetric.Results Compared with control group,the levels of IL-6,IL-8 and TNF-α in observation group were significantly increased (t=7.94,6.87,9.56,P ＜ 0.01),the levels of IgA,IgG and IgM also increased,differences were statistically significant (t =6.71,7.96,8.39,P ＜ 0.01).Conclusion The inflammatory cytokines and immune imbalance in the development of HFMD play an important role,observe the dynamic changes of IL-6,IL-8,TNF-α,IgA,IgG and IgM levels has certain clinical application value in preventing and judging the state of HFMD.
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Objective To establish a noninvasive prenatal testing(NIPT) method based on the chromosome specific site sequencing instead of the conventional whole genome sequencing.Methods Blood plasma samples from 200 pregnant women with known fetus karyotypes were collected.First,the specific loci on chromosome 13,18 and 21 were selected by the database filter.Then,these specific loci were captured by probes,and were performed sequencing.Finally,chromosome aneuploidy was identified by the Z-score.ResultsSeven fetuses with 21-trisomy syndrome,3 with 18-trisomy syndrome and 1 with 13-trisomy syndrome were detected by the chromosome specific site sequencing,and the results were accordant with those of the whole genome sequencing method.Conclusion The NIPT method based on the chromosome specific site sequencing has the advantages of low cost and high throughput,which may replace the NIPT method based on the whole genome sequencing.
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Objective To investigate the activation and clinical significance of the mammalian target of rapamycin (mTOR) pathway related protein and eukaryotic translation factor 4E-binding protein 1 (4E-BP1) in gastric cancer.Methods The activation of mTOR and 4E-BP1 in gastric cancer tissues of 38 surgical patients were detected by immunohistochemical method.The differences of phosphorylated mTOR and 4E-BP1 expression among cancerous tissues,para-cancerous tissues and normal gastric mucosa tissues and dinicopathological variables were analyzed by Chi square test and Kruskal-Wallis test.Results The positive expression rate of phosphorylated mTOR in the gastric cancerous tissues was significantly higher than that of para-cancerous tissues and normal tissues [71.1％ (27/38),50.0 ％ (19/38) and 44.7 ％ (17/38),x2 =11.031,P =0.026].The positive expression rate of downstream protein 4E-BP1 in the gastric cancer tissues was also significantly higher than that of paracancerous tissues and normal tissues [68.4％(26/38),57.9％(22/38) and 28.9％ (11/38),x2 =13.943,P=0.007].There was no correlation between phosphorylated mTOR and 4E-BP1 expression and tumor Lauren's sub-type,infiltration,differentiation degree,lymph node metastasis and patient's age.There was statistical significant difference between activated 4E-BP1 expression and tumor size in gastric cancer (H=3.86,P＜0.05).Conclsions mTOR pathway was over activated in gastric cancer.There was difference between phosphorylation degree of its downstream protein 4E-BP1 and the tumor size.
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Problem-based learning has gradually become an important pedagogical tool in the medical curriculum.Behaviors of PBL tutor play an unique role in teaching.A good PBL tutor must consider the following issues:ample preparing before class,awareness of learning outside the tutorial room,social congruence,dealing with the difficult student and dysfunctional group,sharing the PBL experience and seeking support or advice from peers.
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100 cases of patients with brain tumor were tested with lymphocyte transformation testand erythrocyte-rosette forming cell,the results showed the lymphocyte transfor-mation test and Erythrocyte-Rosette Forming Cell of the patients with brain tumorwas lower than that of the normal value,of the 100 postoperative brain tumor cases75 were treated with blood-enriching decoction of Angelica Sinensis and 25 were usedas control.The lymphocyte transformation test and erythrocyte-Rosette formingcell of the treated group showed a remarkable rise(P