1.Progress in research on preparation of antibodies against rhesus D antigen
Bulletin of The Academy of Military Medical Sciences 2009;33(6):586-589
The RhD antigen is expressed only in human red blood cells (RBC).Its immunogenicity and clinical application are only next to ABO blood group system, and is widely used both for blood typing and prevention of hemolytic disease of the newborn. The traditional anti-Rh(D) is derived by fractionation of plasma from individuals who have been sensitized by pregnancy or transfusion, or have been deliberately immunized to produce anti-Rh(D). Because of the limited source of plasma, researchers began the study of monoclonal and recombinant antibody. Monoclonal and recombinant anti-Rh(D) antibodies may provide alternatives to the current plasma derived polyclonal IgG anti-Rh(D), but up to now,none of them have yet proved effective in humans for prevention of RhD immunity and hemolytic disease of the newborn.
2.Expressions of ER, PR and CerbB-2 in papillary thyroid carcinoma and their clinical significances
Ying JIN ; Ying WANG ; Feng LI ; Changzheng WANG ; Zhiying SI
Cancer Research and Clinic 2013;(5):339-341
Objective To explore the expressions of ER,PR and CerbB-2 in human papillary thyroid carcinoma,and their correlation with the clinical features.Methods The expressions of ER,PR and CerbB-2 were detected by immunohistochemistry in 89 papillary thyroid carcinoma samples and 13 nodular goiter samples.Results In papillary thyroid carcinoma samples,ER,PR and CerbB-2 were detected for 50.56 %(45/89),43.82 % (39/89),24.72 % (22/89),respectively.In nodular goiter,ER,PR and CerbB-2 were detected for 15.38 % (2/13),7.69 % (1/13),0,respectively,there were significant differences between the two groups (x2 =5.649,P=0.017,x2 =6.211,P=0.013,x2 =4.097,P=0.043).The positive rates of PR were 56.26 %(26/46) in without lymph node metastasis,compared with those lymph node metastasis 30.2 3% (13/43) were significantly higher,the difference was statistically significant (x2 =6.239,P =0.012).Conclusion The expressions of ER,PR and CerbB-2 are significant higher in papillary thyroid carcinoma.The detection of ER,PR and CerbB-2 might be helpful for early diagnosis and prognosis of papillary thyroid carcinoma.
3.Wuling capsule played an assistant role in primary prevention of post-stroke depression: a clinical research.
Jin ZHU ; Chun-mei HU ; Si-si GUO ; Feng WANG ; Ye ZHOU ; Su-ya ZHANG
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(6):676-679
OBJECTIVETo observe the primary prevention role of Wuling Capsule (WC) on poststroke depression (PSD) patients.
METHODSAcute stroke patients were recruited and randomized into 2 groups by stratification, 55 in each group. All patients received same routine treatment of cardiovascular diseases. Patients in the experimental group additionally took WC (0.33 g each pill), 3 pills per day, three times per day; while those in the control group additionally took placebos, 3 pills per day, three times per day. Two weeks consisted of one therapeutic course. The diagnosis of PSD was performed once every other week. Those in accordance with PSD diagnosis discontinued any drug therapy. Those not in accordance with PSD diagnosis continued the drug therapy for 1-12 therapeutic course(s) (in total of 6 months). If they were still not in accordance with PSD diagnosis, then they discontinued the drug therapy. The morbidity of PSD, the average time of depression occurrence, Hamilton depression rating scale (HAMD) score, and adverse reactions were observed.
RESULTSThe 1-, 3-, and 6-month morbidity of PSD was 8%, 16%, and 34% in the experimental group, while they were 19.6%, 29.4%, and 54.9% in the control group. The occurrence rate was lower in the experimental group than in the control group. Besides, there was statistical difference in the 6-month occurrence rate between the two groups (chi2 = 4.465, P < 0.05). The average time of PSD occurrence was longer in the experimental group than in the control group (14.96 +/- 8.31 weeks vs. 9.36 +/- 6.06 weeks; t=6.762, P < 0.05). The HAMD score at the PSD occurrence was 11.96 +/- 2.14 in the experimental group, lower than that of the control group (14.57 +/- 4.24), showing statistical difference (t=5.641, P < 0.05).
CONCLUSIONWC was superior to the placebos in lowering the incidence of PSD, delaying the occurrence time of PSD, attenuating the depression degree of PSD, and had certain preventive effect on the incidence of PSD.
Aged ; Capsules ; Depression ; etiology ; prevention & control ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Primary Prevention ; Stroke ; complications
4.Changes in subfoveal choroidal thickness after intravitreal injections of ranibizumab for macular edema secondary to retinal vein occlusion
Qi, ZHANG ; Jie, FENG ; Pei-Feng, LI ; Yi, JIN ; Si-Min, CHEN
International Eye Science 2015;(4):712-713
AIM: To observe the changes in subfoveal choroidal thickness ( SFCT ) after intravitreal injections of ranibizumab ( IVR ) for macular edema secondary to retinal vein occlusion ( RVO) .
METHODS:Thirty-six eyes of 36 patients with macular edema secondary to RVO) were treated with 0. 5mg IVR monthly for 3mo and received additional IVR as needed over the following 1a period. SFCT of the all eyes ( the affected eyes with RVO and unaffected fellow eyes ) was measured by enhanced depth imaging optical coherence tomography images before and after the IVR.
RESULTS: The mean SFCT of the affected eyes with RVO decreased from 246. 7±115. 0μm at baseline to 220. 5±102.0μm at 1mo (P<0.05), 198.3± 114.0μm at 6mo (P<0.01), 212. 6± 96. 0μm at 12mo (P<0. 01). Whereas the fellow eyes changed from 229. 4±108. 0μm at baseline to 226. 3±107. 0μm at 1mo (P>0. 05), 228. 6±127. 0μm at 6mo (P>0.05), 223.6±101.0μm at 12mo(P>0.05). There were statistically significant difference between affected eyes with RVO and unaffected fellow eyes.
CONCLUSION: The SFCT is decreased after IVR for macular edema secondary to RVO. IVR seems to affect the hemorheology of the choroid.
5.A case of hydroa vacciniforme-like primary cutaneous CD8-positive T-cell lymphoma
Su-Ying FENG ; Pei-Ying JIN ; Xue-Si ZENG ; Yi-Qun JIANG ;
Chinese Journal of Dermatology 2003;0(10):-
39℃)developed at the progressive stage of this disease.Physical examination showed variously sized,round or oval,atrophic and variola-like scars along with scattered erythematous patches,papules, necrosis and crusts on the face and extremities.The face was edematous,and there were some edematous and erythematous plaques with a necrotic center on the legs and arms.Histological examination revealed a massive infiltration with atypical CD8~+lymphocytes around the vessels and appendages in dermis.A diagnosis of CD8~+cutaneous T-cell lymphoma(CTCL)was made.Glucocorticoid and immunosuppressants were effective in controlling the condition.Up to the time of the writing,there has not been any definite evidence of systemic involvement.
6.Study on accumulation of polysaccharides and alcohol-soluble extracts contents of Dendrobium officinale leaves.
Zhen-peng LIU ; Cui-xia XU ; Jing-jing LIU ; Jin-ping SI ; Xin-feng ZHANG ; Ling-shang WU
China Journal of Chinese Materia Medica 2015;40(12):2314-2317
This paper revealed the accumulation regularity of polysaccharides and alcohol-soluble extracts contents of Dendrobium officinale leaves, which have provided basis for the development and utilization of the leaves. The polysaccharides and alcohol-soluble extracts contents of three D. officinale strains leaves collected in different growing periods were determined by phenol-sulfric acid method and hot-dip method respectively. The results showed that the content of polysaccharides in leaves was 4.45% -12.17%, and was about a quarter in stems. The alcohol-soluble extracts content in leaves was 7.45% - 29.34%, and was 1.5 times that of stems. The quality variation of polysaccharides in leaves was closely related to the phenophase. The leaves with lower level of metabolism in three stages: winter, early germination stage and deciduous period, which led to lower content of polysaccharides. The leaves at the vigorous growth stage with higher content of polysaccharides. The alcohol-soluble extracts were closely associated to the formation and germination of buds. The content of alcohol-soluble extracts peaked before sprout, and promoted the growth of new shoots.
Dendrobium
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chemistry
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metabolism
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Drugs, Chinese Herbal
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analysis
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metabolism
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Plant Leaves
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chemistry
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metabolism
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Polysaccharides
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analysis
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metabolism
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Seasons
7.Effect of strains and parts on amino acids of Dendrobium officinale.
Zhen-peng LIU ; Ying-ying GUO ; Jing-jing IU ; Jin-ping SI ; Ling-shang WU ; Xin-feng ZHANG
China Journal of Chinese Materia Medica 2015;40(8):1468-1472
The aim of the paper is to reveals the variations of Dendrobium officinale amino acids in different strains and parts for breeding excellent varieties, and providing scientific basis for the expanding of medicinal or edible parts. The contents of 17 amino acids in 11 strains of D. officinale were determined by hydrochloric acid hydrolysis method. The total amino acids content of leaves was from 6.76 to 7.97 g per 100 g, and the stems was from 1.61 to 2.44 g per 100 g. As the content of amino acids in leaves was significantly higher than that of stems, and the composition was close to the ideal protein standard proposed by FAO/WHO. The leaves of D. officinale had the good prospect for the development of functional foods. The 9 x 66 strain which with high yield and polysaccharide content had the highest amino acids content both in stems and leaves, indicated crossbreeding could improve the quality of varieties. Compared the amino acids content of D. officinale in two main harvest periods, the harvest time has a significant impact on amino acids content of D. officinale. This study demonstrates that the harvesting time of D. officinale stems is suitable for leaves as well, which is the period before bolssom.
Amino Acids
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chemistry
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Dendrobium
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chemistry
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classification
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Drugs, Chinese Herbal
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chemistry
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Phylogeny
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Plant Leaves
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chemistry
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classification
8.Optimation of the Fermentation Conditions for Human ApolipoproteinA-I Expression
Wen-Feng MA ; Man-Sheng DING ; Mei-Jin GUO ; Ying-Ping ZHUANG ; Ju CHU ; Si-Liang ZHANG ;
Microbiology 1992;0(06):-
Optimization of the fermentation condition for human apolipoproteinA-I expression in recombinant Escherichia coli was investigated. The recombinant plasmid pBV220-ApoA-I was transformed respectively into different E.coli hosts such as JM109, BL21(DE3),DH5?, BMH7118,and TG1. The best host E.coli was DH5? in which the recombinant ApoA-I expression percentage was 21.2% corresponding to that in BL21(DE3) in flask shaker cultivation,while the ApoA-I expressed percentage in E.coli TG1 was 11%.Fed-batch cultivation was performed in FMG-5L fermentor,the optimum fermentation cultivation conditions were as following :optimum pH value was 7.0 in growth phase and 7.4 in the expression phase. The initial glucose concentration in batch phase was 3 g?L -1.The optimum C/N ratio was 2∶1.The recombinant ApoA-I reached about 40% of the total protein, and concentration of ApoA-I was 2.86 g?L -1.
9.Study on the Recombinant Human ApoA-I_Milano High Density and High Expression by Two Temperature-Shifted Induction in Escherichia coli
Wen-Feng MA ; Ying-Ping ZHUANG ; Mei-Jin GUO ; Man-Sheng DING ; Ju CHU ; Si-Liang ZHANG ;
Microbiology 1992;0(02):-
The temperature effect on the recombinant protein production formation was investigated in present study. The culture temperature of growth phase is 30℃, and the culture temperature of induction phase was arranged according to three modes. Hign cell-density and high expression culture of E.coli to product recombinant human apolipoprotein A-I Milano by two temperature-shifted induction . Two temperature-shifted induction was carried out high density and high expression recombinant human ApoA-1 Milano. The recombinant protein ApoA-I Milano reached 4.8 g?L -1 with the final cell density of OD 600 150. And the two temperature-shifted induction avoided the acetic acid successfully to the influence of the high density and high expression. Two temperature-shifted induction was viable in high density culture and high expression of heterogenous protein in recombination E.coli.The sduty provides a basic work for production of recombinant ApoA-I Milano in scale.
10.The effect of 131I on apoptosis of thyrocytes in patients with Graves disease
Min, CAI ; Xian-feng, LI ; Xiao-yan, FENG ; Hai-bin, CHEN ; Jian-zhong, LIU ; De-shan, ZHAO ; Si-jin, LI ; Zuo-xiang, HE
Chinese Journal of Nuclear Medicine 2011;31(1):54-57
Objective To investigate the effect of 131I on apoptosis of thyrocytes in patients with Graves disease. Methods Forty-seven patients with Graves disease were divided into two groups, two week group (G2w) and four week group (G4w). All patients underwent thyoid needle biopsy before 131I treatment and the repeated biopsy at two weeks (G2w) or four weeks (G4w) after 131I treatment. The positive units of pro-apoptotic proteins (Fas, FasL) and anti-apoptotic protein (Bcl-2) were studied with immunohistochemistry staining. The differences of the two groups were compared with t-test. Liner correlation analysis was applied to study the correlation between 131I dose and apoptosis-related proteins and that between serum sTSH after 131I treatment and apoptosis-related proteins. Results Fas, FasL and Bcl-2 expression (positive units) were significantly increased in both groups after 131I treatment, G2w :22.84 ± 9.31 vs 16.20 ± 6.75,21.13±6.29vs 14.56±4.06, 21.69±7.83 vs 15.22 ±5.94, t= -3.08, -3.73, -4.05 (allP<0.05); G4w:21.69 ±4.52 vs 15.83 ±5.03, 19. 11 ±3.75 vs 14.02 ±4.98, 19.06 ±3.44 vs 16.63 ±4. 73, t = - 5.26, - 5.00, - 2.41 (all P<0.05). However, no statistical differences were found between G2w and G4w (t = 0. 53, 0. 82, 1.46, all P > 0.05). Significant correlation was found between 131I 0. 727, rFasL = 0. 763 (both P<0.05)), but not between the dose and Bcl-2, rBcl-2 = - 0. 094, 0. 102(both P > 0.05). There were significant correlation between serum sTSH three months after 131I treatment and apoptosis-related proteins, rFas = 0.433, rFasL = 0. 601, rBcln2 = - 0. 397, (all P<0. 05). Conclusions 131I can induce thyrocytes to express the pro-apoptotic proteins in patients with Graves disease.