1.Delayed open reduction and internal fixation for the Cotton's fracture
Rui XIA ; Rong KONG ; Shiyuan FANG
Orthopedic Journal of China 2006;0(12):-
0.05).The activities degrees of ankle joint also had no statistical difference.[Conclusion]According to the extent of the displacement of Cotton's fracture,we should make the right operative order and the incision,thus we can get results with anatomic reduction and shorten the operative time,which can help the patients make early exercises and get satisfactory effect.
2.GROWTH IMPROVEMENT OF LACTOBACILLUS ACIDOPHILUS BY JUICE OF PLEROTUS SAPIDUS
Gong ZHANG ; Rui-Jun WANG ; Rong ZHENG ;
Microbiology 1992;0(04):-
The present study shows that mushroom juice exhibits a significanteffect on growth of L. acidophilus in reconstituted skim milk. When 5% - 10% mushroom juice was added in skim milk, they shorten generation time and the rate of lactic acid production was accelerated. After 10h incubation at 37℃ cell counts of L. acidophilus in test groups were much more than in control group, were up to 108/mL.
3.Primary Report on Gasless Laparoscopy for Totally Extraperitoneal Hernia Repair
Rong HUA ; Rui DING ; Qiyuan YAO
Chinese Journal of Minimally Invasive Surgery 2005;0(08):-
Objective To evaluate the efficacy of gasless laparoscopy for totally extraperitoneal(TEP) hernia repair.Methods Between April and August 2007,totally 82 patients with inguinal hernia received TEP in our hospital,in 30 of them the surgery was completed with gasless laparoscopy,while in the other 52,pneumoperitoneum was used for the operation.The operation time,medical cost,hospital stay,complications,and follow-up data of the two groups were compared.Results The gasless group had a longer operation time [(65.3?19.4) min vs(43.6?21.9) min,t=4.501,P=0.000],but less medical cost [(6186.7?1283.7) RMB vs(8391.8?850.8) RMB,t=-9.347,P=0.000].No significantly difference was observed in the hospital stay and rate of complications between the two groups [(2.1?0.8) d vs(1.8?0.9) d,t=1.513,P=0.134;and 6.7%(2/30) vs 5.8%(3/52),?2=0.027,P=0.870].Conclusion Gasless laparoscopy is effective and safe for totally extraperitoneal(TEP) hernia repair.
4.Methylation status of RIZ1 gene promoter in myelodysplastic syndrome.
Rui-Rong XU ; Li-Na XUAN ; Yan WANG
Chinese Journal of Hematology 2012;33(9):774-775
Adolescent
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Adult
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Aged
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Aged, 80 and over
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DNA Methylation
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DNA-Binding Proteins
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genetics
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Female
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Histone-Lysine N-Methyltransferase
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genetics
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Humans
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Male
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Middle Aged
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Myelodysplastic Syndromes
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genetics
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Nuclear Proteins
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genetics
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Transcription Factors
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genetics
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Young Adult
5.Extraction and Determination of Rhynchophylline and Isorhynchophylline in Ramulus Uneariae cum Uncis
Rong ZHANG ; Rui LIU ; Qide LIU ; Suiqing MI ; Ningsheng WANG
Traditional Chinese Drug Research & Clinical Pharmacology 2009;20(4):338-341
Objective To explore the optimal method of extraction and determination of rhynchophylline and isorhynchophylline in Ramulus Uncariae cum Uncis. Methods A RP-HPLC was performed on a Phenomenex C18 column (4. 6 mm× 150 mm, 5m) at 30℃. The mobile phase consisted of methanol-0. 01 mmol/L triethylamine solution (70: 30, pH 7.0 adjusted by glacial acetic acid) at the flow rate of 0. 5 mL/min. The automatic sample injector was set at 5℃ and the ultraviolet detector was operated at 245 nm. And then, the effect of different extraction condition on the contents of rhynchophylline and isorhyn-ehophylline in Ramulus Uncariae cum Uncis was investigated. ResultsA good linearity of rhynchophylline was in the range of 2. 5μg/mL to 80. 0μg/mL (Y=76. 7170X-0. 0727,r=0. 999 8),the average recoveries were from 99. 84 % to 116. 91%, and the RSD (n=6) were less than 8.8 %. A good linearity of isorhynchophylline was in the range of 2. 0 μg/mL to 80. 0 μg/mL (Y=87. 4729X-0. 3666, r=0.999 7), the average recoveries were from 87.08 % to 104. 97 %, and the RSD (n=6) were less than 7.3 %. The contents of rhynchophylline and isorhynchophylline in the methanol-extracted solu- tion were approximately ten times as much as those in water-decocted solution. The main factors which had effect on the ex-traction of rhynchophyUine and isorhynchophylline in methanol solution were supersonic time,methanol amount and cold-dousing time, in a decreasing sequence. The best condition selected by orthogonal experiment wasb as follows: extracting the medicinal material with 20-fold volumes of methanol, cold maceration for 24h and supersonic extraction for 1 h. Conclusion The extraction percentage of rhynchophylline and isorhynchophylline in the extraction condition of cold maceration with methanol and supersonic extraction is superior to that in the water-decocting condition. The method is simple, fast and accurate, and it can be used for the quality control of Ramulus Uncariae cum Uncis.
6.Correlation between ultrasonographic classification and age and lesion of female mammary gland
Dan ZHANG ; Rui JIN ; Yandong LI ; Yan MENG ; Rong ZHENG
Chinese Journal of Ultrasonography 2008;17(10):887-889
Objective To investigate the correlation between ultrasonographie classification, age and lesion in female. Methods One thousand two hundred and eight patients with 2416 mammary gland were comfired by pathologic findings, including 132 benign lesion and 54 malignancy lesion. According various sonographic appearances in the mammary gland structure and involution grade, the mammary glonds were classified into glandular,fibroglandular and fatty types. A single mammary gland is statistic unit. Results To follow age growth, the proportion of glandular type was decrease, 61.7% in under 30 years of age,31.5% in 30-39 years of age,15.3% in 40-49 years of age,8.6% in 50-59 years of age,4.5 in over 60 years of age. To follow age growth, the proportion of fatty type was higher, 1.6 % in under 30 years of age, 5.80% in 30-39 years of age,5.5% in 40-49 years of age,10.8% in 50-59 years of age,38.6% in over 60 years of age. Before 60 years of age, to follow age growth, the proportion of fibroglandular type was higher, which achieved the peak value (79.2%) in 40-49 years and last to 50-59 years of age (80.6%) ,but it was decrease to 56.9% after 60 years of age. There was significant difference of the proportion in any age(P=0.000).The proportion of the benign lesion no difference in three categories. The proportion of malignancy lesion (6.23%, 16/257 mammary gland)in fatty type was higher than that in fibroglandular type (2.18%,37/1698 mammary gland) which was significant difference(P=0.000). There was no malignancy lesion in glandular type. Conclusions Significant correlation were present between uhrasonographic classification, age and malignancy lesion, no significant correlation were found between uhrasonographic classification, age and benign lesion.
7.Alkanethiol modified magnetic silver flower nanoparticles applied to detection of chloramphenicol
Ping LI ; Chongwen WANG ; Zhen RONG ; Rui XIAO ; Shengqi WANG
Military Medical Sciences 2016;40(8):634-638
Objective To prepare novel alkanethiol modified magnetic silver flower nanoparticles as SERS substrate to chloramphenicol for Raman detection and to determine their enhancement effect.Methods An alkanethiol was chosen as a surface modifier of the substrate and was self-assembled onto the magnetic silver flower nanoparticle surface.The chloram-phenicol molecules were enriched to the surface of the substrate by hydrophobic interaction and the effect for detection of chloramphenicol SERS signal was enhanced.Results It was found that the 1-hexanethiol-modified SERS substrate was able to lead to stronger enhancement than 1-dodecanethiol and octadecanethiol.Fe3 O4@SiO2-Ag-C6 was used to detect the chloramphenicol (10 -3 -10 -10 mol/L) and chloramphenicol in milk (10 -3 -10 -9 mol/L) by surface-enhanced Raman spectroscopy.The detection limits were 0.1 nmol/L (32 ppt) and 1 nmol/L (323 ppt) respectively.Conclusion Alkanethiol modified magnetic silver flower nanoparticles are a highly active SERS substrate, which can be used for detection of low concentrations of analytical substances.
8.Serum fingerprint detection based on surface-enhanced Raman scattering
Jing GUO ; Zhen RONG ; Rui XIAO ; Shengqi WANG
Military Medical Sciences 2016;40(7):602-605
Objective To optimize the experiment conditions of surface-enhanced Raman spectroscopy detection of serum fingerprint spectra.Methods Normal human serum was used as the sample and Ag nanoparticles as the active substrate.The enhanced signals of different optimized experiments were obtained , including serum dose(2.5 to 500 μl), incubation time(10 to 30 minutes) temperature(4℃,room temperature and 37℃),and different treatment(extraction and protein removal).Results and Conclusion Serum doses should not exceed 50μl.The ratio should range from 1∶1 to 5∶1, the incubation time is from 10 to 30 minutes, and the incubation temperature from 4℃ to 37℃.The signals of samples directly mixed with an active substrate are stronger than those of samples which are extracted or protein removed .
9. Effects of Atorvastatin, Rosuvastatin, and Pravastatin on Antiplatelet Activity of Clopidogrel in Patients with Acute Coronary Syndrome and Different CYP2C19 Genotypes
Chinese Pharmaceutical Journal 2019;54(19):1599-1603
OBJECTIVE: To investigate the effects of atorvastatin, rosuvastatin, and pravastatin on antiplatelet activity of clopidogrel in patients with acute coronary syndrome(ACS) and different CYP2C19 genotypes. METHODS: Between November 2017 and November 2018, a total of 300 patients admitted for ACS were enrolled in this study and randomly assigned to three groups. All patients received standard dual antiplatelet therapy. A, B, and C groups received atorvastatin calcium 20 mg•d-1, rosuvastatin calcium 20 mg•d-1, and pravastatin sodium 20 mg•d-1, respectively. The CYP2C19 genotype was detected by pyrosequencing. Thromboelastogram(TEG) was applied to detect the ADP-induced platelet inhibition rate 7 days after treatment. RESULTS: No significant difference was observed in baseline clinical characteristics between three groups. It was also no statistically significant difference in ADP inhibition rate and proportion of clopidogrel resistance between three groups(P>0.05). However, compared with rosuvastatin group and pravastatin group, the ADP inhibition rate was significantly reduced in atorvastatin group in poor metabolizers of CYP2C19. CONCLUSION: In intermediate metabolizers and extensive metabolizers of CYP2C19, there is no significant difference in the effects of atorvastatin, rosuvastatin, and pravastatin on antiplatelet activity of clopidogrel. Compared with rosuvastatin and pravastatin, atorvastatin significantly attenuates the antiplatelet function of clopidogrel in poor metabolizers of CYP2C19.
10.Application of surface-enhanced raman spectroscopy in human serum
Jing GUO ; Zhen RONG ; Rui XIAO ; Shengqi WANG
Military Medical Sciences 2016;40(4):350-352
Recently surface-enhanced Raman spectroscopy (SERS) has been widely used in physics, chemistry and bio-medical science.Due to its high sensitivity and specificity,SERS is often used to detect changes in serum components in humans.Various biomolecules in human serum, such as proteins, lipids and nucleic acids, have their own distinctive raman spectroscopy so that different raman shift, band intensity and width reflect different metabolic abnormalities of cells at the molecular level in human serum.In this paper we described the general situation of SERS and summarized the latest research progress in a variety of diseases of human serum.Prospects of developmenls are also outlined.