China ; Oral Medicine ; education

Reversible cerebral vasoconstriction syndrome (RCVS) is characterized by thunderclap headache and reversible cerebral vasoconstriction, with other neurologic signs and symptoms. To the best of our knowledge, there were only a few cases of RCVS presenting both as both convexity subarachnoid hemorrhage (cSAH) and posterior reversible encephalopathy syndrome (PRES). Herein, we report a case of a 32-year-old woman with RCVS who presented with recurrent thunderclap headaches that occurred 50 days after delivery, with cSAH and PRES on magnetic resonance imaging (MRI). She had significant clinical and radiological recovery on 3 months’ follow-up. The clinical coexistence of cSAH and PRES in our case with RCVS is quite rare. This case illustrates the importance of awareness of the diagnosis of RCVS among clinicians even when initial brain and vascular imaging are normal. Early diagnosis and treatment are crucial for better prognosis.

Objective To investigate the clinical characteristics of pontine infarction and the value of MRI in diagnosis of pontine infarction. Methods The cilinical feature and image manifestation of 65 cases with pontine infarction were analyzed retrospectively. Results Pontine infarction had complicated clinical presentation,classical syndrome was less,most presentation was similar to anterior circulation infarction. MRI especially DWI could found the infarction lesions earlier. Conclusion Pontine infarction and anterior circulation infarction have simlar presentations.MRI especially DWI could show the infarction lesions in supper-acute stage,could be helpful to diagnose.

Objective To investigate the correlation of the vascular endothelial growth factor (VEGF) gene variations in the promoter region with the sporadic Alzheimer' s disease (SAD) in Chinese Han population for better understanding the mechanism of SAD. MethodsThe polymorphisms of 279 SAD Chinese Han patients from Northern China were analyzed by comparing with those from 317 healthy individuals using the method of polymeraee chain reaction-restriction fragment length polymorphism ( PCR-RFLP) or direct sequencing.The commercial statistics package SPSS 11.5 was used to compare the distribution of the allele and the genotype, and to analyze their correlations with SAD. ResultsThree polymorphism sites were found for the VEGF promoters in the Chinese Han sample group including -2578C/A,- 2549I/D and- 1154G/A.- 2549I/D and- 2578C/A exhibiting strong linkage disequilibrium. Individuals with the A allele at position -2578 had an insertion of 18 nucleotides at -2459I/D, whereas CC homozygotes did not contain th es were found between the SAD patients and the controls in the 3 VEGF polymorphisms. After adjusting the data for gender, age and the ApoE ε4 allele using Logistic regression, the - 1154G/G genotype of the VEGF promoter might increase the risk of SAD in Chinese Han population.Among the subgroup without the ApoE ε4 allele, -2549D/-1154G haplotype might increase the risk for SAD (OR = 1.325, 95％ CI 1.023--1.716, P=0.033). ConclusionsThree polymorphism sites ( -2578C/A, -254911D, and -1154G/A) are found in the VEGF promoter regions in Chinese Han population. The-1154G/G genotype of the VEGF promote appears to increase the risk of SAD in Chinese Han population.In the absence of ApoE ε4, the -2549D/-1154G haplotype of the VEGF promoter appears to affect the risk for SAD.

Objective:To investigate the cellular immunological regulation mechanism of Zhongjiling tablet on the myasthenia gravis(MG) patients.Methods:The myasthenia gravis patients were randomly divided into 2 groups, the curing group and the control group, 30 cases per group. Patients of curing group administered Zhongjiling tablet and prednisone placebo, patients of control group administered prednisone tablet and Zhongjiling tablet placebo. Course of treatment was 12 weeks. The distribution of T lymphocyte subgroup of myasthenia gravis patients was detected by flow cytometry. The content of IFN-?, IL-4 and TGF-? of the patients’ peripheral blood mononuclear in vitro were detected by ELISA kits.Results:After treatment, CD4+T cell percentage and the ratio of CD4+/CD8+ decreased significantly(P0.05). The IFN-? and IL-4 of treating group depressed, compared with that of pre-treatment, significant difference exited(P

OBJECTIVE To strengthen occupational safety and health(OSH) management of medical service. METHODS To analyze actuality of OSH management and internal and international laws and regulations for OSH management,and give the proposition of its construction. RESULTS On the basis of the requirement,a set of OSH management scheme was established. CONCLUSIONS It is imperative that construct occupational safety and health management laws and regulations and system in medical service.They are pacing factors for physical and mental health of medical members.

OBJECTIVE To select applicable air disinfectors that can be used at indoor dynamic state to disinfect air in hospital.METHODS Some different air disinfectors were installed different volumetric rooms.To detect indoor air bacterial content before and after running the air disinfectors at quiet state and dynamic state.To evaluate the disinfection effect of these air disinfectors according to the eliminateion rates.RESULTS At quiet state,the indoor bacteria eliminateion rate exceed 90% after the air disinfectors running 0.5h.So the disinfection were qualified.At dynamic state,these air disinfectors showed good lasting disinfection effect.CONCLUSIONS The air disinfectors solve the problem of indoor air disinfection at dynamic state.It is imperative that select and use exactly the air(disinfectors) to get good disinfection effect.

Objective To investigate the curative effects of curcumin(CUR)or dexamethasone (DXM)on ischemia-reperfusion injury(IRI)of rat lung grafts.Methods Male SD rats were randomly divided 4 groups:CUR group(CUR was administered intraperitoneally to both donors and recipients at 3 h prior to operation);DXM group(DXM was administered intraperitoneally at 30 min prior to operation);vehicle group(Animals were injected with the DMSO to both donors and recipients at 3 h prior to operation);sham group(Time-matched control animals underwent the same surgery,except that no graft was implanted).Six animals were sacrificed at different reperfusion periods of 2 h and 24 h,respectively.Oxygenation indexes(PO_2/FiO_2),lung injury scores,wet/dry ratio(W/D)and myeloperoxidase(MPO)activity in the transplanted lung were measured.Malondialdehyde(MDA), total anti-oxidative capacity(TAOC),tumor necrosis factor(TNF)-?and interleukin(IL)-6 in the transplanted lung and serum were determined.Results The levels of LPV PO_2/FiO_2 were significant- ly higher in the CUR and DXM groups than in the vehicle groups both 2 and 24 h after reperfusion,re- spectively(P

Objective To investigate the expression of SEL1L and p63 protein in esophageal squamous cell carcinoma and precarcinomacous lesion.Methods Immunohistochemical staining(EnVision method)was employed to detect the expression of SEL1L and p63 protein in 60 samples of esophageal squamous cell carcinoma,32 samples of high grade esophageal intraepithelial neoplasia,13 samples of low grade esophageal intraepithelial neoplasia and 33 samples of normal esophageal mucosa.Results The positive rate of SEL1L protein expression was 61.5%in low grade intraepithelia neoplasia,90.6%in high grade intraepithelial neoplasia and 96.7%in esophageal squamous cell carcinoma,significantly higher than that in normal esophageal mucosa(6.1%)(P0.05).Conclusion Both the expression of SEL1L and p63 protein increases steadily in the progression of esophageal squamous cell carcinoma,which indicates that the two genes may play a role and cooperate with each other in the carcinogenesis.

Objective To investigate the diagnosis value of the cytological examination of the cerebrospinal fluid of central nervous system leukemia.Methods Adopting cell smear centrifugal machine to collect the cerebrospinal fluid cells,the cells were stained and examinated under the microscope.Results Fifty-nine children with different type of leukemia had been examinated by 438 times by cerebrospinal fluid.The positive rates of the cases and samples were 15.3% and 8.7%,respectively.Conclusion The cytological examination of cerebrospinal fluid is especially valuable for the early diagnosis ,therapy and relapse of central nervous system leukemia of monitoring.