3.Characteristics of vena cava connection in patients with asplenia
Jianpeng, WANG ; Yan, SUN ; Hui, LI ; Xin, QUAN ; Hui, XU ; Xiaoni, LI ; Jun, YAN
Chinese Journal of Medical Ultrasound (Electronic Edition) 2015;(2):160-164
Objective To investigate the characteristics of vena cava connection in patients with asplenia syndrome diagnosed by ultrasound. Methods From October 2009 to February 2014, 49 patients with asplenia syndrome diagnosed in Fuwai Hospital by ultrasound were included in this study. The characteristics and percentage of varied types of anomalous connection of vena cava and pulmonary vena were analyzed. Results Thirty patients (61.2%) had bilateral superior vena cavies. In these cases, right vena cava was drainage into right atrium (or the right side of the single atrium), while left superior vena cava into left atrium (or the left side of the single atrium). For hepatic vein, drainage into inferior vena cava were found in 25 patients (53.2%), into left atrium (or the left single of the single atrium) in 1 patient (2.1%), into right atrium (or the right side of the single atrium) in 3 patients (6.3%), into both right and left atrium in 5 patients (10.2%) and into the middle of the single atrium in 1 patient (2.1%). For inferior vena cava, drainage into left atrium (or left side of the single atrium) were found in18 patients (36.2%), into right atrium (or right side of the single atrium) in 24 patients (51.1%) and into the middle of the single atrium in 1patient (2%). Total anomalous pulmonary venous drainage occurred in 20 patients (40.2%) and partially anomalous pulmonary venous drainage in 8 patients (16.3%). Conclusion Asplenia syndrome is frequently accompanied with anomalous vena cava and pulmonary venous drainage.
4.Purification of HLA-DR molecules
Shuai-Zheng, JIA ; Hong-Yan, SUN ; Xiao-Da, LIU ; Zhi-Yan, DU ; Quan-Li, WANG
Bulletin of The Academy of Military Medical Sciences 2001;25(1):13-16
Objective:To purify HLA-DR molecules. Methods: Anti-HLA-DR antibody L243 was purified and coupled with CNBr activated Sepharose 4B gel. Immunoaffinity column was used to purify HLA-DR molecules. Results:Twenty micrograms of HLA-DR molecules were isolated from about 5 g Epstein-Barr virus-transformed human B lymphoblastoid cell line RAJI lysates by affinity chromatography. The purified HLA-DR molecules existed in α/β heterodimers form and could bind to conformation-dependent antibody L243. These HLA-DR molecules were separated into two strands,α and β,by boiling denaturation. These results are the basis for studying MHC Ⅱ binding peptide motif and CD4+ T cell epitopes of antigens in future.
5.Optimization of processing technology for xanthii fructus by UPLC fingerprint technique and contents of toxicity ingredient.
Yan-Quan HAN ; Yan HONG ; Lun-Zhu XIA ; Jia-Rong GAO ; Yong-Zhong WANG ; Yan-Hua SUN ; Jin-Hai YI
China Journal of Chinese Materia Medica 2014;39(7):1248-1254
The experiment's aim was to optimize the processing technology of Xanthii Fructus which through comparing the difference of UPLC fingerprint and contents of toxicity ingredient in water extract of 16 batches of processed sample. The determination condition of UPLC chromatographic and contents of toxicity ingredient were as follows. UPLC chromatographic: ACQUITY BEH C18 column (2.1 mm x 100 mm, 1.7 microm) eluted with the mobile phases of acetonitrile and 0.1% phosphoric acidwater in gradient mode, the flow rate was 0.25 mL x min(-1) and the detection wavelength was set at 327 nm. Contents of toxicity ingredient: Agilent TC-C18 column (4.6 mm x 250 mm, 5 microm), mobile phase was methanol-0.01 mol x L(-1) sodium dihydrogen phosphate (35: 65), flow rate was 1.0 mL x min(-1), and detection wavelength was 203 nm. The chromatographic fingerprints 16 batches of samples were analyzed in using the similarity evaluation system of chromatographic, fingerprint of traditional Chinese medicine, SPSS16.0 and SIMCA13.0 software, respectively. The similarity degrees of the 16 batches samples were more than 0.97, all the samples were classified into four categories, and the PCA showed that the peak area of chlorogenic acid, 3,5-dicaffeoylquinic acid and caffeic acid were significantly effect index in fingerprint of processed Xanthii Fructus sample. The outcome of determination showed that the toxicity ingredient contents of all samples reduced significantly after processing. This method can be used in optimizing the processing technology of Xanthii Fructus.
Caffeic Acids
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analysis
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toxicity
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Chemistry, Pharmaceutical
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Chromatography, High Pressure Liquid
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methods
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Drugs, Chinese Herbal
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analysis
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toxicity
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Quinic Acid
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analogs & derivatives
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analysis
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toxicity
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Xanthium
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chemistry
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classification
6.The format converting from MR images into BMP ones.
Lian-qiang ZHANG ; Yan-quan SUN
Chinese Journal of Medical Instrumentation 2002;26(3):215-217
This paper is to introduce the method in which the SIEMENS' MR images are converted into BMP format ones based on the correct format analysis of SIMENS' MR images, we condude that the conversion from SIEMENS' MR image to BMP image can be realized by software design.
Computers
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Humans
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Magnetic Resonance Imaging
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methods
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Software
7.Tongue base surgery with front neck access and uvulopalatopharyngoplasty for treatment of severe obstructive sleep apnea-hypopnea syndrome.
Qing-Quan ZHANG ; Xi-Cheng SONG ; Tian-Zhen ZHANG ; Yan SUN ; Hua ZHANG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2005;40(9):704-705
Adult
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Aged
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Female
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Humans
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Male
;
Middle Aged
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Otorhinolaryngologic Surgical Procedures
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methods
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Sleep Apnea, Obstructive
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surgery
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Tongue
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surgery
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Uvula
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surgery
8.Following-up of patients with sigmoid rectal pouch for urinary division (report of 34 cases)
Jizhang XING ; Quan HONG ; Bin SUN ; Gaobiao ZHOU ; Jingmin YAN ; Zhiyong YAO ; Zehou WANG ; Heqing GUO
Chinese Journal of Postgraduates of Medicine 2016;39(9):811-813
Objective To investigate the management and prevention of the complications of sigmoid rectal pouch for urinary division after radical cystectomy. Methods The clinical data of 34 patients who underwent a sigmoid rectal pouch procedure were analyzed retrospectively, and the clinical experience was summarized in the management and prevention of the complications of sigmoid rectal pouch for diversion. Results Twenty-six patients were followed up for 2 months to 11 years, and 10 patients lost in follow-up. The early follow-up results were as follows:3 patients had postoperative high fever with unilateral the kidney water, 1 patient had retropubic bleeding and need to stop bleeding, 3 patients suffered from wound split open and were performed relaxation suture, and 1 patient had sigmoid colon rectum bladder fistula 10d after operation. The late follow-up results were as follows:1 patient had urethral neoplasms recurrence, 5 patients developed distance metastases, and 5 patients developed nocturnal incontinence and worn safety pad. There were no hyperchloremic acidosis requiring clinical treatment, hydronephrosis as well as retrograde pelvis infection. Conclusions The operation of sigmoid rectal pouch for urinary division is fairly simple, with no serious complication. It is a better alternative diversion procedure, and should be accepted gradually by patients and surgeons.
9.Prognostic evaluation of clinical scoring systems for patients undergoing resection of colorectal cancer liver metastases
Xiaoluan YAN ; Kun WANG ; Quan BAO ; Yi SUN ; Hongwei WANG ; Kemin JIN ; Baocai XING
Chinese Journal of Hepatobiliary Surgery 2015;21(6):388-392
Objective To identify the risk factors associated with overall survival (OS) for patients undergoing partial hepatectomy for colorectal liver metastases,and to assess the predictive values of five published scoring systems in an independent patient cohort for the purpose of external validation.Methods The clinical,pathologic,and complete follow-up data were prospectively collected from 303 consecutive patients who underwent primary hepatic resection for colorectal liver metastases at the Beijing Cancer Hospital from January 2000 to Aug 2014.The predictive values of the Nordlinger score,the Memorial Sloan-Kettering Cancer Center (MSKCC) score,the Iwatsuki score,the Basingstoke index,and the Konopke scoring system were assessed in this patient set.The clinical and pathologic parameters were further analyzed using univariate and multivariate analyses.Results The 1-,3-and 5-year overall survival were 89.2%,50.8% and 38.6%,respectively.The median survival time was 37 months.Two risk factors were found to be independent predictors of poor overall survival:the N stage of the primary tumor,and a carcinoembyonic antigen level > 30 μg/L.The MSKCC score had the best independent predictive power for survival when compared with the other 4 prognostic systems (C-index:0.903).Conclusion In our patient cohort,the MSKCC score was the best staging system in predicting survival.
10.Impact of postoperative complications on survival after hepatic resection for metastatic colorectal cancer patients
Hongwei WANG ; Kun WANG ; Quan BAO ; Yi SUN ; Kemin JIN ; Xiaoluan YAN ; Baocai XING
Chinese Journal of General Surgery 2015;30(1):42-45
Objective To evaluate the correlation between postoperative complications and prognosis after radical hepatic resection for colorectal liver metastasis (CRLM).Methods We retrospectively summarized patients' clinicopathological data and postoperative complications.Postoperative complications were graded using Dindo-Clavien system of classification.Then we investigate the relation between these data and prognosis.Results One hundred and seventy-three patients were recruited.Postoperative complications developed in 59 (34.1%) cases.37 patients had minor complications and 22 patients had major complications.On univariate (x2 =8.106,P =0.004) and multivariate analysis (x2 =8.006,P =0.005),complication was an independent predictor of overall survival (OS).However,in a subgroup of patients with minor compications,morbidity was not associated with a significant reduction in both OS (x2 =3.199,P =0.074) and disease-free survival (x2 =1.313,P =0.252).Conclusions Postoperative complications are an independent factor for long-term outcomes after hepatic resection for CRLM.