1.The clinical characteristics of adult abdominal type Henoch Scholein purpura
Yan LI ; Xiaoyan LIU ; Zhifeng YANG
Clinical Medicine of China 2011;27(9):943-945
ObjectiveTo summarize the clinical features of adult patients with abdominal type Henoch Scholein Purpura(HSP) to improve the early diagnosis and therapeutic outcome of HSP.Methods The clinical features of 31 adult patients with abdominal type HSP from the Hematology department of Handan First Hospital between March 2007 to June 2010 were retrospectively reviewed and compared with that of 30 adult patients with non-abdominal type HSP.Results All the 31 patients had abdominal pain.Of those patients,48.4% had periumbilical colicky pain, 38.7% had whole abdominal pain and 12.9% had lower abdominal pain.The other clinical manifestations included nausea/vomiting(19.4%),positive feces occult blood test(45.1%) .EGD and Colonoscopy of 13 patients showed mucosal congestion, red macda, erosion and ulceration mainly in the descending duodenum, distal ileum and rectosigmoid.There was no difference in age, gender, allergic history and predisposing infection between those with abdominal pain and without.The patients with abdominal pain had more cases of mixed-type HSP than those without and the difference was significant (P < 0.01) .Conclusion Patients with abdominal-type of HSP are mainly young adults.So we must be more alert to abdominal-type of HSP when facing young patients with abdominal emergency.Abdominal-pain-manifesting HSP patients are mostly mixed-type cases.Gastrointestinal endoscopy is specific and might provide valuable clues for early diagnosis.
2.Management of Drug Emergency Inspection
Zhifeng GAO ; Yan WANG ; Huaxin YANG
China Pharmacist 2014;(11):1937-1938
Objective:To enhance the management level of drug emergency inspection. Methods: The emergency inspection of plasticizers was used as the example, and the management in the whole inspection procedures was reviewed to summarize the difficulties and solutions and analyze the management features of drug emergency inspection. Results and Conclusion: There are three keys in successful drug emergency inspection, including correct top-level design, high efficient execution teams and necessary guarantee sys-tems.
3.Cerebral ischemia models in rats
Rongliang WANG ; Feng YAN ; Zhifeng GAO ; Xunming JI ; Yumin LUO
International Journal of Cerebrovascular Diseases 2012;20(1):48-53
This article summarizes the methods of making rat cerebral ischemia models and comments the advantages and disadvantages of various methods in order to provide references for the selection of animal models in the basis and appfication research of cerebral ischemia.
4.Research on Analysis Model for Chemical Drug Standards
Zhifeng GAO ; Yan WANG ; Kang HU ; Lan LIN ; Huaxin YANG
China Pharmacist 2014;(12):2124-2126
Objective: To research and establish an analysis model for chemical drug standards to provide the reference for the standard exploration jobs. Methods:The standard variation was studied by comparing and analyzing every version standard for the same drug to look for the change rule. Results:The standard items of the drug had some change rules in indicator numbers, testing methods and limits according to the order of issue time. The standard development trends could be described by making specific indicators and drawing evolution figures of the items. Conclusion:By the standard analysis model, the same item of the same drug can be compared to provide the reference for data collecting of experts. Meanwhile, formulate standard can be calculated to provide the reference for the standard improvement without drug standards.
5.Research process on the virulence factors of Gallibacterium anatis in poultry
Jiyang WANG ; Yan WANG ; Zhifeng PENG ; Xia YANG
Chinese Journal of Veterinary Science 2017;37(8):1627-1632
Gallibacterium anatis,a member of the Pasteurellaceae family,constitutes a part of the normal micro-flora of the upper respiratory tract and the lower genital tract in chickens.However,increasing evidence indicate that G.anatis is also associated with a wide range of pathological changes,particularly in the reproductive organs,which leads to decreased egg production,lowered animal welfare and increased mortality.As a recently defined opportunistic pathogen limited focus has been placed on the pathogenesis and putative virulence factors permitting G.anatis to cause disease.One of the most studied virulence determinants is a large RTX-like toxin (GtxA),which has been demonstrated to induce a strong leukotoxic effect on avian macrophages.A number of fimbria of different sizes and shapes,particularly the F17-1ike fimbriaes,appear to be common in a diverse selection of G.anatis strains.The capsular material expressed possibly involved in serum resistance,metalloproteases capable of degrading immunoglobulins,hemagglutinins,and all factors which may promote biofilm formation are likely linked to the virulence of G.anatis.This review summarized the putative virulence factors described for this bacterium to date.
6.Robotic surgery in the management of early ovarian malignancy tumors
Yuanqing YAO ; Xiuli LI ; Yizhuo YANG ; Zhongyu LIU ; Hong YAN ; Zhifeng YAN ; Li CHEN ; Jing WANG
Chinese Journal of Obstetrics and Gynecology 2015;(8):603-607
Objective To apply robotic surgery of early ovarian malignancy tumors clinically and evaluate its feasibility in management for early ovarian cancer. Methods Using the da Vinci robotic surgical system, seven patients with early ovarian malignancy tumors (stage Ⅰ) underwent robotic surgery from April 2012 to September 2013. The average age was 45.7 years. Robotic surgeries approaches contained salpingo-oophorectomy,para-aortic lymphadenectomy, pelvic lymphadenectomy, omentectomy and appendectomy. Perioperative and follow-up clinical data were recorded. Results All robotic surgeries were successfully completed without the conversion to laparotomy. The mean operative time was 225 minutes (100-330 minutes). The average estimated blood loss was 171 ml (20-600 ml). No patients received blood transfusions. No intraoperative and postoperative complications were observed. The average number of pelvic lymph node dissected were 18.3 (11-34). The average number of para-aortic lymph node dissected were 3.7 (3-4). The mean follow-up time was 26.0 months after surgery (20-36 months). Currently, all patients had no tumor recurrence and survived. Conclusion Robotic surgery is feasible as a novel alternative approach in the treatment of early ovarian malignancy tumors.
7.Prokaryotic expression of Campylobacter jejuni mcp1/2/3 genes and relationship among the expressed products and bacterial chemotactic behavior
Zhifeng LI ; Jinfang ZHAO ; Hongqiang LOU ; Yafei MAO ; Liwei LI ; Xuai LIN ; Jie YAN
Chinese Journal of Microbiology and Immunology 2009;29(7):607-611
Objective To clone mcp1, mcp2 and mop3 genes that encoding methyl-accepting chemotaxis proteins(MCP) of Campy/obacter jejuni for construction of their prokaryotic expression systems, and to establish chemotactic model in vitro of the microbe for determining chemotaxis-inducing substances and to understand relationship among MCPs and chemotactic inducers. Methods The segments of mep1, mcp2 and mcp3 genes were amplified by PCR and then sequenced after T-A cloning. Prokaryofic expression systems of the genes were subsequently constructed. SDS-PAGE pins Bin-Rod Gel Image Analyzer were used to examine the expression of target recombinant proteins rMCP1, rMCP2 and rMCP3, and Ni-NTA affinity chromatography was performed to purify the rMCPs. Rabbits were immunized with each of the three rMCPs to obtain antisera. Immunodiffusion assay was performed to measure the titers of antisera. IgG in each of the antisera were extracted by ammonium sulfate precipitation and DEAE-32 ion exchange chromatography, and IgG F(ab')2 were then prepared by pepsin enzymolysis and Sephadex G-100 chromatography. Chemotactic model in vitro of C. jejuni based on HAP( hard-agar plus) method was established to determine the chemo-taxis-inducing effect of eight candidate substances. Chemotaxis inhibition test based on IgG F(ab')2 bloc-king was applied to determine the function and diversity of MCPs. Results The segments with expected si-zes amplified from mcp1, racp2 and mcp3 genes were obtained by PCRs, and their nucleotide and putative amino acid sequences were completely same as the reported. The constructed prokaryotic systems could effi-ciently express rMCPs with the yields about 10% of the total bacterial proteins. Immunization with rMCP1, MCP2 and rMCP3 enables the rabbits to produce specific antibody. All the antisera had 1: 4 immunodiffusion titers. Both bovine bile and sodium deoxycholate(DOC) were able to induce ehemotactie movement of C. je-juni in a dosage-dependent manner ( P < 0.05 ). When MCP1 and MCP2 were blocked with their IgG F(ab')2, the ehemotaetic ability of C. jejurd were remarkably decreased (P <0. 05). However, MCP3 blocking did not affect the chemotaxis ( P > 0.05 ). Conclusion The C. jejuni MCPs are successfully ex-pressed in this study. Bovine bile and DOC are the inducers for chemotaxis of C. jejuni, and MCP1 and MCP2 are involved in the process of ehemotaxis iadueed by DOC.
8.Clinical and imaging efficacy observation of closed reduction and plaster splint fixation in the treatment of ge-rontal patients with distal radius fractures
Daojun LU ; Caifeng ZHANG ; Dong HAN ; Zhifeng HAN ; Xi HAN ; Yan CHEN ; Zhong PENG
Chinese Journal of Primary Medicine and Pharmacy 2014;(5):677-678
Objective To discuss the clinical efficacy of closed reduction and plaster splint fixation ( CRPSF) in the treatment of gerontal patients with distal radius fractures ( DRF) .Methods 76 elderly patients with DRF who treated by CRPSF were selected .According to AO classification of fractures ,the patients were divided into three groups,the A group had 27 cases;B group had 26 cases,C group had 23 cases.The treatment effect was evalua-ted by analyzing the follow-up data,the corresponding imaging measurement parameters and clinical scores .Results All patients had 12-month clinical and imaging follow-up.In the last follow-up, the arm-shoulder-hand dysfunction score and palmar angle ,ulnar deviation angle of A and B group were significantly better than those of C group , the differences were statistically significant(all P<0.05),the difference between A and B group was not statistically sig-nificant (P>0.05).In the last follow-up,the satisfaction score of C group was slightly lower than that of the A or B group,but had no statistically significant difference (P>0.05).Conclusion CRPSF in the treatment of gerontal pa-tients with DRF has good function and imaging effects ,and the improvement level has a certain relationship with the degree of fracture,but has no significant impact on the patients'satisfaction.
9.Analysis of tongue color under natural daylight based on chromatic aberration correction.
Jiatuo XU ; Zhifeng ZHANG ; Zhujuan YAN ; Liping TU ; Luming LU ; Meiyu SHI ; Fenglan ZHU
Journal of Integrative Medicine 2009;7(5):422-7
To establish an analytical method for tongue image acquisition under natural daylight based on L*a*b* error correction, and to observe the classification rules of tongue color using color error correction.
10.Significance of peripheral blood T lymphocyte subsets and NK cells detection in lung cancer diagnosis and treatment
Jinhua JIANG ; Tinghua YAN ; Suiwan LU ; Guowei ZHONG ; Yongxin XIE ; Xiang CHEN ; Yanfen SHI ; Zhifeng ZHOU
Cancer Research and Clinic 2013;(2):90-93
Objective To analyse the relationship between T lymphocyte subsets and NK cells expression and dynamic changes in lung cancer patients 'peripheral blood and the occurrence and development of cancer,and investigate their clinical significances.Methods Flow cytometry was applied to detect 66 patients with lung cancer,60 patients with pulmonary tuberculosis and 60 healthy persons peripheral blood CD+3,CD+3CD+8,CD+3CD+4,Th/Ts,CD+16CD+56 expression.Lung cancer group peripheral blood CD+3,CD+3CD+8,CD+3CD+4,Th/Ts,CD+16CD+56 expression were also detected on 3rd,7th and 20th day before and after chemotherapy.Results Lung cancer group CD+3,CD+3CD+4,Th/Ts,CD+16CD+56 expression decreased significantly [(54.23±10.37)%,(34.23±8.03)%,1.35±0.20,(25.18±4.34)%] and had significant differences compared with pulmonary tuberculosis group [(63.09±9.19)%,(39.46±12.74)%,1.51±0.41,(26.45±3.96)%] and healthy group [(69.68±8.31)%,(42.31±13.29)%,1.89±0.48,(29.44±2.51)%](P < 0.05),but CD+3CD+8 expression showed no significant difference(P > 0.05).In chemotherapy group,comparing with before chemotherapy,remission group CD+3,CD+3CD+4,Th/Ts and CD+16CD+56 expression decreased significantly (P < 0.01)on 3rd day after chemotherapy,while CD+3CD+8expression increased significantly(P < 0.01).On 7th day,each index recovered to the level of before chemotherapy basically.On 20th day,CD+3,CD+3CD+4,Th/Ts and CD+16CD+56 expression increased significantly(P < 0.05)compared with before chemotherapy,while CD+3CD+8 expression significantly decreased(P < 0.05).Chemotherapy unease group had no significant difference (P > 0.05).Lung cancer of stage Ⅲ A and Ⅲ B compared with stage Ⅰ A,and lymph node metastasis in N3 group compared with N0 group,CD+3,CD+3CD+4,CD+3CD+8,Th/Ts and CD+16CD+56 expression had significant differences (P < 0.05).Compared with their pathological types,each index had no significant difference(P > 0.05).Conclusion Monitoring the peripheral blood T lymphocyte subsets and NK cells dynamic of lung cancer patients can guide the clinical diagnosis and treatment,and contribute to the assessment of immune function.