2.Study on Effects of Chromium on Heavy Metal Removing Strains
Xian-Yan LU ; Hua YIN ; Hui PENG ; Jin-Shao YE ; Na ZHANG ;
Microbiology 1992;0(02):-
Effects of Cr 6+ concentration and culture time on four heavy metal removing strains,stability of these four strains removing Cr 6+,configuration changes inside or outside their cells,effects of Cr 6+ on soluble reductive sugar inside their cells,and effect of several factors on these strains had been studied,and the Cr 6+ resistance mechanisms of these strains have been discussed elementarily. The results showed that the Lethality of these strains caused by Cr 6+ was similar with one another, namely, increasing at first, then decreasing, and finally increasing again as culture time passed. Acclimatization of Candida sp. was better than Sporobolomycetaceae sp.,and the Cr 6+ resistance of Sporobolomycetaceae sp. 7-3 was the best of the four. The research also demonstrated that the metabolic activity of these strains had been influenced by Cr 6+ in a certain extent. Scanning electron microscopy,transmission electron microscopy,and atomic force microscopy observations approved that removal of Cr 6+ by Candida sp. was depended on both surface adsorption and intracellular accumulation. Effects of Cr 6+ concentration, pH, culture time, nitrogen source, carbon source and adsorption time on these strains are not the same.
3.Effects of liposomal prostaglandin E(1) on myocardial reperfusion injury in rabbits
Ping-Xian YE ; Jian-Hua ZHU ; Qiang XIA
Journal of Zhejiang University. Medical sciences 2002;31(1):33-36
OBJECTIVE: To probe into the role of liposomal prostaglandin E(1) (Lipo-PGE(1)) on reperfusion injury in a rabbit ischemia-reperfusion model. METHODS: Twenty-four open-chest rebbits were randomized to receive a 10 min intravenous infusion of either liposome diluent, free PGE(1), or Lipo-PGE(1) after 60 min of left anterior desending (LAD) ligation just before reperfusion. Serum creatine phosphokinase (CPK), malodialdehyde (MDA), superoxide dismutase (SOD) were detected; infarct size and region at risk were measured. RESULTS: Infarct size as a ratio of weight of infarcted tissue to weight at risk (MI/RISK) was significantly reduced with Lipo-PGE(1) (32.20+/-4.70)% compared with PGE(1) (42.09+/-6.93)% or placebo (44.57+/-5.46)% infusion (P<0.01). The values of serum CPK, MDA during reperfusion in treatment of Lipo-PGE(1) group were significantly reduced than in treatment of PGE(1) group or control group (P<0.05), and the values of serum SOD were significantly increased (P<0.05). CONCLUSION: Lipo-PGE(1) can effectively decrease the serum CPK and MDA contents, elevate the SOD activity, and attenuate myocardial reperfusion injury.
4.Chemical constituents from the twigs and leaves of Harrisonia perforate.
Hua XIAO ; Rong-rong ZHENG ; Jian ZHANG ; Min SONG ; Xian-da GAO ; Xiao-qi ZHANG ; Wen-cai YE
Acta Pharmaceutica Sinica 2015;50(12):1622-1624
This study was performed to investigate the chemical constituents in the twigs and leaves of Harrisonia perforate. Six compounds were isolated from the 95% EtOH extract of the twigs and leaves of Harrisonia perforate by silica gel, ODS, Sephadex LH-20 column chromatographies and preparative HPLC. On the basis of chemical properties and spectra data, these compounds were identified as harriperfin E (1), kihadanin A (2), kihadanin B (3), 6α-acetoxyobacunol acetate (4), gardaubryone C (5), and β-sitosterol methyl ether (6), respectively. Compound 1 is a new chromone, and compounds 2-6 are isolated from this plant for the first time.
Chromatography, High Pressure Liquid
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Drugs, Chinese Herbal
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chemistry
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Phytochemicals
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chemistry
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isolation & purification
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Plant Leaves
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chemistry
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Simaroubaceae
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chemistry
6.Relevant factors on the degree of anterior uveitis in patients with ankylosing spondylitis
Guo-Xiang, SONG ; Jin-Xian, HUANG ; Ya-Ling, DENG ; Zhi-Hua, YIN ; Zhang-Yi, LIANG ; Zhi-Zhong, YE
International Eye Science 2014;(7):1310-1312
AlM: To investigate the association between the degree of anterioruveitis and related factors including inflammatory markers as well as sacroiliac joint imaging in patients with ankylosing spondylitis ( AS) .
METHODS: Anterior changes evaluated by slit lamp, erythrocyte sedimentation rate ( ESR ) , C - reactive protein ( CRP ) and magnetic resonance imaging of 55 cases with AS associateduveitis were retrospectively analyzed. A modified endotoxin-induced uveitis ( ElU ) clinical standard was used for uveitis grading. SPARCC sacroiliac scoring was used to evaluate bone edema of sacroiliac joint. The correlation between the degree of uveitis and sacroiliitis was assessed.
RESULTS: ln the 55 patients with AS, ElU grading scored 2-10, and SPARCC index scored 0-22. Further analysis showed that the severity of uveitis was significantly correlated with ESR (r=0. 869, P<0. 001) and CRP (r=0. 485, P<0. 001). The degree of anterior uveitis in AS patients was not correlated with inflammation of sacroiliac joint (r=0. 237, P=0. 081).
CONCLUSlON: Local autoimmunity of uveitis and sacroiliac joint inflammation with subsequent bone formation in AS might be mutually independent processes.
7.Expression of recombinant extracellular region of human interleukin-1 receptor type I in Pichia pastoris.
Wei-hui LÜ ; Jun-hua ZHUANG ; Wei-ye CHEN ; Zhan-feng ZHANG ; Xian-zhang HUANG
Journal of Southern Medical University 2010;30(8):1841-1843
OBJECTIVETo construct pPICZalphaA-soluble interleukin-1 receptor type I (sIL-1RI) recombinant expression vector containing the gene fragment encoding the extracellular domain of sIL-1RI for its expression in Pichia pastoris.
METHODSsIL-1RI gene was amplified by RT-PCR and inserted into the yeast expression vector pPICZalphaA by digestion ligation. The recombinant plasmid pPICZalphaA-sIL1RI was transformed into E.coli Stb13, and the positive clones were analyzed by PCR and DNA sequencing. The pPICZalphaA-sIL1RI recombinant plasmid was electroporated into GS115 cells and the transformants were analyzed by PCR. After phenotype identification, the recombinant strains were induced by methanol to express the target protein, which was analyzed by Western blotting of the cell extract and supernatant.
RESULTSThe recombinant plasmid pPICZalphaA-sIL-1RI was constructed successfully, and the results of Western blotting showed that yeast induced by methanol expressed a protein of about 39 kD.
CONCLUSIONsIL-1RI protein has been successfully expressed in P.pastoris expression system, which provides the basis for further study of sIL-1RI.
Escherichia coli ; metabolism ; Gene Expression ; Genetic Vectors ; Humans ; Pichia ; metabolism ; Plasmids ; Receptors, Interleukin-1 Type I ; biosynthesis ; genetics
8.Determination of ligustilide for quality assessment of Ligusticum chuanxiong.
Shi-Qiong CHENG ; Guang-Hua LV ; Shi-Xian LIANG ; Ye WANG ; Yu-Cong XU ; Zhong-Zhen ZHAO
China Journal of Chinese Materia Medica 2006;31(14):1143-1146
OBJECTIVETo assay ligustilide content in the herb of Szechwan Lovage Rhizome (Chuanxiong, CX), which is the dried rhizome of Ligusticum chuanxiong in order to assess the quality.
METHODLigustilide was quantitatively analyzed by high-performance liquid chromatography in 21 CX samples. An Alltima C18 column (4.6 mmx 150 mm, 5 microm) was used as the analytical column. The mobile phase consisted of water and acetonitrile (40:60). The flow rate was maintained at 1.0 mL x min(-1) with the column temperature at ambient conditions. The detection wavelength was set at 350 nm.
RESULTThe average content of Z-ligustilide in 21 CX samples was found to be 7.40 +/- 3.54 mg x g(-1)(x +/- s, n = 21). Therefore,the content of Z-ligustilide in CX should not be less than 0.66% (calculated on the dried basis).
CONCLUSIONThe overall analytical procedure is rapid and accuracy which is considered suitable for the quantitative analysis of ligustilide in CX. The amount of ligustilide in CX samples collected from different cultivation areas was obviously different. However, a relatively higher content of ligustilide was generally found in the CX collected from its main cultivated areas.
4-Butyrolactone ; analogs & derivatives ; analysis ; China ; Chromatography, High Pressure Liquid ; methods ; Ecosystem ; Ligusticum ; chemistry ; Plants, Medicinal ; chemistry ; Quality Control ; Reproducibility of Results ; Rhizome ; chemistry
9.Treatment of 60 patients with temporomandibular joint dysfunction by manipulative reduction of cervical vertebrae combined with Pi needle release.
Xian-Hua ZHOU ; Zheng-Xiang LI ; Na-Sha YE
China Journal of Orthopaedics and Traumatology 2018;31(6):518-521
OBJECTIVETo evaluate the clinical effects of manipulative reduction of cervical vertebrae combined with Pi needle release for the treatment of temporomandibular joint dysfunction.
METHODSFrom March 2012 to May 2017, 60 patients with temporomandibular joint dysfunction were treated by manipulative reduction of cervical vertebrae with Pi needle release, including 26 males and 34 females, ranging in age from 18 to 60 years old, with an average of 32.5 years old. The courses of the disease ranged from 1 week to 5 years, with a mean duration of 3 months. The patients were followed up before and after treatment by maximum active opening of temporomandibular joint, joint clicking and comparison of visual analogue scale (VAS) pain scores.
RESULTSAll 60 patients were followed up, and the duration ranged from 6 to 24 months, with an average of 12 months. The maximum active opening of temporomandibular joint increased from(1.99±0.47) cm before treatment to(3.17±0.19) cm. The joint clicking decreased from 100% before treatment to(27.33±13.51)% after treatment. The VAS score decreased from 4.73±0.67 before treatment to 1.80±0.53 after treatment.
CONCLUSIONSTreatment of temporomandibular joint dysfunction by manipulative reduction of cervical vertebrae combined with Pi needle release has such advantages as easy operation, obvious curative effect, short course of treatment, which is an effective method for the treatment of temporomandibular joint dysfunction.
10.Standardized management of high-value medical consumables based on medical insurance platform
mei Hong YE ; xian Hong WANG ; Jing WEN ; Hong YU ; hua Jun ZHENG
Chinese Medical Equipment Journal 2017;38(9):132-134
Objective To explore the standardized management of high-value medical consumables during medical insurance management.Methods The definition of high-value medical consumables was introduced,and the problems of high-value medical consumables were analyzed in medical insurance management.The standardized management of highvalue medical consumables was discussed from the aspects of admission and purchase management,approval of high-value medical consumables,training on medical insurance policies,construction of high-value medical consumables examination and evaluation.Results Standardized management of high-value medical consumables contributed to slowing down the increase of per capita medical consumables,controlling the amount of medical consumables during hospitalization and increasing the ratio of domestic consumables.Conclusion All the medical facilities have to avoid irrational increase of highvalue medical consumables to utilize medical insurance fund reasonably with involvement of information platform,management regulation,approval flow as well as examination and evaluation system.