1.STUDY ON DETECTING BLOOD STAGE P.FALCIPARUM ANTIGEN BY USING SANDWICHED MONOCLONAL ANTIBODY-ELISA TEST
Qi GAO ; Zhongyan YANG ; Weiqi ZHANG
Chinese Journal of Schistosomiasis Control 1989;0(02):-
0.05) The sensitvity is over 5 parasites/108 RBC. However, it is not satisfactory by using this method to detect P.vivax antigen.
2.Evolution of iPSC disease models.
Weiqi ZHANG ; Zhichao DING ; Guang-Hui LIU
Protein & Cell 2012;3(1):1-4
3.Five cases of childhood primary Sjogren's syndrome and literature review
Yubo CAI ; Weiqi ZHANG ; Lanfang CAO ; Yueying GU
Chinese Journal of Rheumatology 2009;13(7):473-476
ObjectiveTo further understand the clinic manifestations of childhood primary Sjogren's Syndrome(pSS) and enhance early diagnosis. MethodsFive cases of pSS from Renji Hospital, Shanghai, were reported and their clinical features were analysoed. And literatures from Medline database and Weipu database were reviewed and discussed. Results①Childhood pSS had various clinic presentations that were non-specific and sicca symptoms were absent or occur late in most cases. ② The most common presentations were recurrent parotiditis and cutaneous manifestations with various locations and forms. ③ American-European Criteria for SS were not suitable for the diagnosis of childhood pSS. ConclusionRecurrent parotiditis and cutaneous manifestations in children can be used as clues for the diagnosis of childhood pSS but needs to be further confirmed by the positive results of salivary gland biopsy and autoantibodies examination, particularly SSA/SSB.
4.Evaluation of the biocompatibility of acellular nerve scaffold via three sterilization methods
Weiqi WANG ; Dechao LI ; Wei LU ; Yongjie ZHANG ; Yan JIN
Journal of Practical Stomatology 2010;26(1):33-37
Objective: To observe the biocompatibility of acellular nerve scaffold (ANS) via three sterilization methods, to provide experimental data for tissue engineering industrialization. Methods: Pig sciatic nerves were cut and treated using the NaOH maceration method. ANSs were sterilized by ethylene oxide, ~(60)Co-irradiation and peracetic acid. Evaluated the biocompatibility by MTT, cellular compatibility test, collagenase susceptibility test in vitro and local implantation test. Results: ANS retained the integrity of structure and major components of the basement membrane. The result of MTT test showed that the ANSs via different sterilization methods had statistical differences. There were no overall significant differences in Collagenase susceptibility test. Scanning electron microscope results showed the skin fibroblasts could attach, proliferate and grow well on the surface and holes of ANS with sterilization of PAA and Co~(60),a small quantity of cells adhered on ANS with sterilization of ETO. Tests for local effects after implantation show that different sterilization methods don't effect the ability of ANS to resist the enzyme degradation. In ETO group, rats showed an acute inflammatory response followed by chronic inflammation. In PAA and ~(60)Co group rats showed an acute inflammatory response that diminished such that the graft ultimately became indistinguishable from native tissue, observations that were consistent with graft acceptance. Conclusion: Peracetic acid sterilization offers a convenient alternative protocol for ANS processing. ANS sterilized with PAA shows good compatibility and biologic safety. It is an ideal sterilization method for ANS.
5.Dongguan Han patients with coronary artery PCSK9 gene SNP and its prognosis
Yuqian MO ; Weiqi LI ; Yuru ZHONG ; Xiaoming ZHANG
International Journal of Laboratory Medicine 2015;(12):1725-1727
Objective To investigate the gene E670G SNP loci with coronary heart disease and its relationship Dongguan Han PCSK9 prognosis .Methods In our hospital 100 patients with coronary heart disease and 100 cases of non‐coronary heart disease patients for the study ,patients taking blood ,DNA was extracted and analyzed gene PCSK9 E670G SNP locus by PCR ,using gene sequencing validation .Lipid levels in patients using enzymatic detection and follow‐up of patients with coronary heart disease chan‐ges in serum lipid levels after statin therapy ,the incidence of cardiovascular events .Results CAD group TC ,LDL‐C levels were sig‐nificantly higher than the healthy control group ,HDL‐C was significantly lower than the healthy control group ,the difference was statistically significant (P<0 .05) .AA genotype that was mainly 298 bp and 152 bp of homozygotes ,followed by AG that was 450 bp and 298 bp ,152 bp heterozygotes ,had not been detected 450 bp GG homozygous genotype ,allele frequency distributions in Har‐dy‐Weinberg equilibrium .LDL‐C levels in patients with CAD patients was significantly lower than AA genotype AG genotype , HDL‐C levels were significantly higher in patients with AG genotype (P<0 .05) .Number of cardiovascular patients were followed up six months totaled 27 cases ,AA genotype accounted for 66 .7% ,AG genotype accounted for 33 .3% ,Gallele and the average number of cases of cardiovascular disease events count a statistically significant difference (P<0 .05) .Conclusion PCSK9 E670G polymorphism and LDL‐C ,HDL‐C levels and CAD severity gene‐related ,CAD patients carrying G allele may increase the risk of disease and the risk of again .
6.Realization of assist system for the blind by artificial vision
Hujun ZHANG ; Jianwen GU ; Zhengkui GUO ; Weiqi HE ; Xiaokai LI
Chinese Medical Equipment Journal 2004;0(08):-
This paper introduces an assist system for the blind.It utilizes ultrasonic to measure the distance and speed.Then the distance signal is converted to position of slip block and the speed signal is converted to tone.The main function of this sytem is to assist the blind to determine distance and speed of objects.It is practical,Simple and inexpensive.
7.Clinical and pathological characteristics of benign metastasizing leiomyoma
Yuyu WU ; Weihong GAO ; Weiqi SHENG ; Hongfen LU ; Tingqiu ZHANG
China Oncology 2001;0(05):-
Background and purpose: About 20 cases of BML have been reported in the literature,they occurred in females with history of uterus leiomyoma.BML appears as a histopathologic benign smooth muscle tumor located far from the uterus,often in the lungs.Firstly,it should be confirmed as originating from smooth muscle by immunohistochemistry,Secondly,its primary tumor should be confirmed as benign,with mucoid degenenation,it also should be distinguished from myxoid leiomyosacroma.Methods:We report a case of benign metastasizing leiomyoma,study its clinical,histopathologic and immunohistologic features,discuss the diagnosis and differential diagnosis and give a review of the related references.Results:The case occurred in a forty-two year old female who was found to have bilateral lung nodules after hysterectomy of her uterus leiomyoma six years ago.An open lung biopsy revealed the nodules to consist of proliferating smooth muscle cells with a histopathologic feature similar to her uterus leimyoma,consistent with the diagnosis of BML.Positive staining of estrogen and progesterone receptors was detected in both the uterus leiomyoma and the metastasizing lesions.No significant increase or enlargement of the lung nodules were found seven months after the operation with no therapy except taking Chinese traditional medicine.Conclusions:BML is a rare entity usually occurring in females with history of uterus leiomyoma.It appears as a histopathologic benign smooth muscle tumors distant from the uterus.It is hormone dependent and progresses slowly.
8.STUDY ON IMPROVED McAb-ELISA IN DETECTING BLOOD STAGE P.VIVAX ANTIGEN
Qi GAO ; Zhongyan YANG ; Weiqi ZHANG ; Juling LI
Chinese Journal of Schistosomiasis Control 1989;0(04):-
This paper reports an improved McAb-ELISA test in detecting blood stage P.vivax antigen in which the plates were coated with rabbit anti-P.cynomolgi poly-antibody and two monoclonal antibodies were used together for reaction. The coincidence rate with microscopically conformed P.vivax blood samples was 94.3% and the coincidence rate with microscopically negative blood samples was 96.1%. The sensitivity was over 1 parasite/106 erythrocytes.
9.Comparison of the Quality of Domperidone Tablets Produced by Three Different Factories
Dan MEI ; Feng TIAN ; Qiang FU ; Weiqi ZHANG ; Dakui LI
China Pharmacy 1991;0(02):-
OBJECTIVE:To compare the quality of domperidone tablets produced by 3 different factories METHODS:The quality of different products was investigated according to the standards of Ministry of Public Health and manufacture factories,including dissolubility,uniformity of dosage units,related substances and seals of blister packaging RESULTS:In 3 batches of products manufactured by Y,W and L,the contents of domperidone were 98 23%~99 74%,96 92%~98 31% and 97 42%~98 72%,and content uniformity A+1 8S was 2 11~3 38,3 97~5 25 and 5 49~7 47 respectively,which were in keeping with the Chinese pharmacopoeia;impurity R061668 was not found,and contents of impurity R052211 were 0 004%~0 024%,0 029%~0 072% and 0 003%~0 056%;the total impurity substances were 0 030%~0 095%,0 102%~0 128% and 0 232%~0 489%;the dissolubity(45min) was 95 09%~95 77%,91 25%~96 43% and 95 48%~96 58% respectively In experimental condition,no leakage was found from blister package of Y and W products,however,the leak rate of L product reached more than 38% CONCLUSION:According to this survey,the quality of product Y is the best,W is better
10.Quantitative Eschar Shaving with Epidermal Sheet Graft for DeepⅡ Burns in Hands
Weiping LI ; Zhixiang ZHU ; Feng WANG ; Wanan CHEN ; Liyong ZHANG ; Weiqi YANG ; Yuean ZHANG
Journal of Kunming Medical University 1986;0(04):-
Objective Introducing a technique of quantitative eschar shaving with great sheet of epidermal grafting for deep Ⅱdegree burns in hands.Method 148 hands from 112 patients were treated with this methods.From Jan.2001 to Jane 2004,patients who suffered from deep Ⅱdegree burn injuries was quantitatively eschar shaving using electrical or air power dermatome which was fixed at scale mark from 0.012 inc 、0.016 inc to 0.02inc(from 0.3mm 、0.4mm to 0.5mm) according to the burn injury extents,the wounds were divided into three groups just depends on the injury extents,also the wounds was covered with the different thickness of great sheet of epidermal grafting,which was obtained using the electric or air dermatomes.Results There were 148 hands of 112 cases were treated with this technique within 2h.to 72h after injury.The scar thickness was ranged from 0.4mm to 0.8mm,the function of these hands was good,and the shape of hands looks good.Conclusion Good results was obtained with this methods,the wounds covered with the large sheet of epidermal grafting harvested by the quantitative eschar shaving is recovered uneventful.The thickness of the grafting was according to the increasing skin thickness after burns.