1.Isolation and purification of basement membrane zone mono-specific autoantibodies by spot affinity purified method
Zaixing WANG ; Xuejun ZHANG ; Peiguang WANG ; Al ET
Chinese Journal of Immunology 1985;0(03):-
Objective:To investigate the value of spot affinity purified method in the isolation and purification of mono specific basement membrane zone autoantibodies(BMZ Ab).Methods:Utilizing human dermoepidermal antigen transmitted on NC membrane,We purified 3 cases with mono specific BMZ Ab in sera of SABD patients which was oppositive by immunoblotting.Results:The BMZ Ab purified by this method could specifically combine its target antigen.Conclusion:Spot affinity purified method could be widely used in the isolation and purification of autoantibodies produced by mixed micro antigen.
2.Relationship of Phlegm and Blood-stasis Syndrome in Coronary Heart Disease with Gene Polymorphism of Apolipoprotein E
Honghui MO ; Peiguang PAN ; Yanshou HUANG ; Yongdun HONG ; Yanhong WANG
Journal of Guangzhou University of Traditional Chinese Medicine 2000;0(04):-
Objective To explore the relationship of apolipoprotein E(ApoE) and its gene polymorphism with phlegm and blood stasis syndrome in patients with coronary heart disease(CHD).Methods Ninety-seven qualified CHD patients involving phlegm syndrome(PS),blood-stasis syndrome(BSS),and phlegm and blood stasis syndrome(PBSS) were adopted.Thirty-five healthy volunteers were enrolled into the control group.Serum ApoE level was examined in all of the subjects,and their whole blood DNA were extracted for the detection of ApoE gene polymorphism by polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP).Correlation analysis of the data was performed with SPSS11.0 software.Results The difference of diabetes mellitus,smoking,low-density lipoprotein cholesterol(LDL-C) and high-density lipoprotein cholesterol(HDL-C) was significant between CHD patients and healthy volunteers(P
3.Genetic linkage analysis of a Chinese family with freckle
Min GAO ; Yong CUI ; Peiguang WANG ; Da LIN ; Hui LI ; Wenhui DU ; Wei HUANG ; Xuejun ZHANG ; Sen YANG
Chinese Journal of Dermatology 2008;41(4):251-253
Objective To report a three-generation Chinese family with freckle and to make a genetic linkage analysis in this family.MethodsGenetic linkage analysis was carried out in this family using microsatellite markers distributed over chromosome 4q and 1.Two-point logarithm of odds(LOD)scores were calculated using the Linkage program package(version 5.1),and haplotype was analyzed with Cyrillic version 2.01 software.Results Freckle was inherited in an autosomal dominant pattern with a penetrance of99.9% in this family;linkage to chromosome 4q was ruled out however,supportive evidence was obtained for linkage to microsatellite markers D1S2635 and D1S2844 in chromosome 1q with a maximum LOD score of 1.50.Haplotype analysis in this family localized the locus of freckle to a 12 Mb region flanked by D1S2624 and D1S2799.Conclusions Freckle is a genetically heterogeneous disorder.The causative gene may be located in a 21.2 cM region on chromosome 1q22-24.
4.Microbiological culture of skin lesion exudates and drug sensitivity test in 176 inpatients with pemphigus
Xiuxiu LI ; Nan WU ; Zaixing WANG ; Hui LI ; Shengxiu LIU ; Hongyan WANG ; Min GAO ; Peiguang WANG
Chinese Journal of Dermatology 2020;53(10):791-794
Objective:To analyze results of microbiological culture of lesion exudates and drug sensitivity test in patients with pemphigus, and to optimize the management protocol of pemphigus.Methods:Inpatients with pemphigus were collected from Department of Dermatology and Venereology, the First Affiliated Hospital of Anhui Medical University from January to December in 2008, and the results of microbiological culture of skin lesion exudates and drug sensitivity test were retrospectively analyzed.Results:A total of 176 patients were collected, and skin lesion exudate culture yielded 25 kinds of bacteria and 11 kinds of fungi in 156 (88.64%) patients. Of the 156 patients, 1 kind of pathogen was yielded in 104 (66.67%), and 2 or more kinds of pathogens were yielded in 52 (33.33%). Gram-positive cocci were detected in 134 (76.14%) cases, including Staphylococcus aureus in 80, Staphylococcus hemolyticus in 21, and Staphylococcus epidermidis in 16; Gram-negative bacilli were detected in 66 (37.50%) cases; fungi were detected in 24 (13.64%) cases. In addition, 89 (93.68%) of 95 relapsed patients showed positive culture results, 67 (82.72%) of 81 patients with newly developed pemphigus had positive culture results, and the positive rate significantly differed between the two groups ( χ2 = 5.22, P <0.05). Drug sensitivity test for Staphylococcus aureus isolates showed that 71 (97.26%) of 73 were sensitive to vancomycin, 69 (97.18%) of 71 to linezolid, and 61 (87.14%) of 70 to rifampin. Conclusion:Cutaneous infection, especially Gram-positive cocci infection, is very common in patients with pemphigus, and Staphylococcus aureus clinical isolates were highly sensitive to vancomycin, linezolid and rifampicin.
5.Analysis of clinical characteristics and laboratory findings of 131 cases of neurosyphilis
Huayang TANG ; Jinping GAO ; Ze GUO ; Jin WEI ; Jiaojiao FAN ; Xianfa TANG ; Peiguang WANG ; Xiaoming KONG ; Sen YANG
Chinese Journal of Dermatology 2020;53(10):774-780
Objective:To deeply analyze differences in characteristics of neurosyphilis between male and female patients with neurosyphilis, as well as between patients with symptomatic neurosyphilis and those with asymptomatic neurosyphilis, and to provide reference for the prevention and control, clinical diagnosis and treatment of neurosyphilis.Methods:A total of 131 inpatients with neurosyphilis were collected from Department of Dermatology and Venereology, the First Affiliated Hospital of Anhui Medical University from June 2015 to December 2019, and their clinical manifestations and laboratory findings were retrospectively analyzed. These patients were grouped according to gender and neurological/psychiatric symptoms. Measurement data were compared by using two-independent-sample t test or Mann-Whitney U test, and enumeration data were compared by using chi-square test and Fisher′s exact test, to analyze differences in clinical characteristics and laboratory indicators between different groups. Results:Among the 131 patients, there were 72 with asymptomatic neurosyphilis (asymptomatic group) and 59 with symptomatic neurosyphilis (symptomatic group). The proportion of patients receiving syphilis treatment was significantly lower in the symptomatic group (10.17%) than in the asymptomatic group (98.61%, OR = 0.002, P < 0.001). The misdiagnosis rate at the first clinical visit was significantly higher in the male patients (50.00%) than in the female patients (24.49%, OR = 3.08, P = 0.004), as well as in the symptomatic patients (89.83%) than in the asymptomatic patients (0, OR = 13.00, P < 0.001). The proportion of symptomatic patients was significantly higher in male patients (57.32%) than in female patients (14.64%, OR = 4.14, P = 0.003). Compared with the female patients, the male patients showed significantly increased positive rates of toluidine red unheated serum test (TRUST) in the cerebrospinal fluid samples (52.44% vs. 26.54%, OR = 3.05, P = 0.004), increased proportions of patients with elevated levels of total protein (> 0.5 g/L) in cerebrospinal fluids (79.27% vs. 59.18%, OR = 2.64, P = 0.01), increased total protein levels in cerebrospinal fluids (0.76 ± 0.41 g/L vs. 0.56 ± 0.25 g/L, P = 0.002), and increased detection rates of brain magnetic resonance imaging abnormalities (72.22% vs. 44.90%, OR = 2.13, P = 0.039). The age at diagnosis of the symptomatic female patients (50.82 ± 9.31 years) was significantly higher than that of the asymptomatic female patients (42.30 ± 12.18 years, P = 0.038). The positive rate of TRUST in the cerebrospinal fluid samples was significantly higher in the patients with symptomatic neurosyphilis (55.93%) than in those with asymptomatic neurosyphilis (31.94%, OR = 2.70, P = 0.006), and so was the total protein level in cerebrospinal fluids (0.79 ± 0.46 g/L vs. 0.60 ± 0.24 g/L, P = 0.003) . Conclusion:The misdiagnosis rate of neurosyphilis is high at the first clinic visit; the condition of male patients is more serious than that of female patients; anti-syphilitic treatment history, gender and age may play some role in the development of neurosyphilis.