1.Experience in the Management of the Facilities and Equipment of Pharmacy Intravenous Admixture Ser-vice in Our Hospital
Zhoufang PU ; Xuewei ZHANG ; Xuechang WANG
China Pharmacy 2017;28(1):137-140
OBJECTIVE:To provide a reference for the management of the facilities and equipment of the pharmacy intrave-nous admixture service(PIVAS). METHODS:The experience in the management of the facilities and equipment of PIVAS in our hospital was introduced in respect of system establishment,archives management and the maintenance of important equipment,and the performance of core purification equipment was tested to evaluate management effect. RESULTS & CONCLUSIONS:The PIV-AS in our hospital established a practical system by developing and improving 7 management systems,9 sets of operational proce-dures and 5 contingency plans,increased the awareness of archives management by perfecting 27 archive files and standardized and conducted the maintenance of key equipment. In 2014 and 2015,after implementing management,the passing rates of all test items of the purification equipment were 100%. It is suggested that facilities management should focus on active preparation of an intelli-gent monitoring system,the improvement of the information system and the training of professional management personnel.
2.Purification and structural elucidation of exoploysaccharide from a new marine bacterium Lentibacter algarum ZXM100T.
Peipei LI ; Xuechang CHEN ; Yurong ZHANG ; Xiaojun ZHANG ; Guangming MEI ; Yuanming GUO
Chinese Journal of Biotechnology 2014;30(3):455-463
Exopolysaccharide La0.1-1 was extracted from the broth of a marine bacterium Lentibacter algarum ZXM100T isolated from the seawater in the coastal region of Qingdao and purified by Q Sepharose Fast Flow ion-exchange chromatography and Superdex 75 gel-permeation chromatography. Its physiochemical properties and primary structural characters were investigated by chemical analysis together with high performance liquid chromatography (HPLC), high performance gel permeation chromatography (HPGPC) and gas chromatography and mass spectrometry (GC-MS). The results show that the total sugar content of the exoploysaccharide La0.1-1 was about 66% with an average molecular weight at 12.0 kDa. La0.1-1 is mainly composed of Gal, Man, GlcN at the ratio of 1.35:1.1:1.0. Results of GC-MS and NMR demonstrate that the exopolysaccharide La0.1-1 mainly exists with the beta configuration. The primary linkage styles are --> 2)-Manp(1 --> and --> 3)-Galp(1 --> with a small amount of --> 4)-Galp(--> 1 and --> 4)-Manp(1 --> linkages. The linkage mode of GlcN is --> 4)GlcN(1 --> and terminal linkage. The exopolysaccharide has mainly a linear sructure with a few branches linked to 0-6 of --> 2)-Manp(1 --> and 0-4 or 0-6 of --> 3)-Galp(1 -->. 1D-NMR data also revealed that La0.1-1 is substituted by certain acetyl; the acetyl is mainly linked to N-2 of GlcN. The exopolysaccharides of the bacterium of Lentibacter genus is reported for the first time, and an exopolysaccharide with novel structure was obtained, which enriched marine polysaccharide resources.
Chromatography, Gel
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Chromatography, High Pressure Liquid
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Chromatography, Ion Exchange
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Gas Chromatography-Mass Spectrometry
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Magnetic Resonance Spectroscopy
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Molecular Weight
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Polysaccharides
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chemistry
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isolation & purification
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Rhodobacteraceae
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chemistry
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Seawater
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microbiology
3.Detection of circulating tumor cells from peripheral blood in patients with esophageal squamous cell carcinoma and its clinical significance
Jun LI ; Wei WANG ; Yuanyuan QIAO ; Dajin ZHANG ; Feng WEN ; Liqun SHANG ; Xuechang LI ; Junqiang LIU
Chinese Journal of Thoracic and Cardiovascular Surgery 2012;28(3):157-160
ObjectiveTo explore the relationship between circulating tumor cells(CTCs) in the peripheral blood of patients with esophageal squamous cell carcinoma(ESCC) and the physiopathological characteristics of esophageal neoplasms.MethodsUsing negative selection system,we depleted red blood cells(RBCs) in red blood cell lysis buffer,depleted white blood cells (WBCs) with Miltenyi magnetic beads and enriched the rare cells from ESCC patients'peripheral blood.Immunofluorence staining (IF) was adopted to identify CTCs.ResultsCirculating tumor cells in the peripheral blood of patients with esophageal squamous cell carcinoma was closely related to cell differentiation grade,the invasion of primary cancer,lymph node status,P-TNM stages,and was rarely related to the sex,age or the location of tumor.ConclusionThe results suggest that circulating tumor cells in the peripheral blood of patients with esophageal squamous cell carcinoma may express the development of esophageal cancer and may be served as a tumor marker to evaluate the biological behavior of esophageal cancer.
4.Carcinoma of the lung and multiple primary malignant tumors.
Hui LI ; Wei WANG ; Liqun SHANG ; Xuechang LI ; Zhangyu ZHANG
Chinese Journal of Lung Cancer 2002;5(3):211-213
BACKGROUNDTo evaluate the incidence of multiple primary malignancies combined with lung and other organs and their relationship.
METHODSAll patients who consecutively treated for lung cancer from December 1964 to December 1992, were retrospectively analyzed regarding the recurrence of a synchronous primary tumor elsewhere in the body.
RESULTSOf total 1019 patients reviewed, 21 (2.1%) had associated carcinoma of other organs. In these 21 patients, the incidence of associated aerodigestive tract cancer was 71.4% (15/21) and that of other organs was 28.6% (6/21). Five patients had simultaneous cancer with the lung cancer and 16 had metachronous cancer.
CONCLUSIONSMultiple primary tumors in patients with carcinoma of the lungs is not a rare phenomenon. Surveillance programs for detection of second primary tumors should focus on these patients.
5. Laparoscopic cholecystectomy with or without percutaneous transhepatic gallbladder drainage for acute severe cholecystitis: a meta-analysis
Chong ZHANG ; Sisi SHEN ; Minghui WANG ; Jisheng LIU ; Xuechang TIAN
Chinese Journal of Hepatobiliary Surgery 2019;25(12):910-914
Objective:
To compare laparoscopic cholecystectomy (LC) with or without percutaneous transhepatic gallbladder drainage (PTGD) for acute severe cholecystitis.
Methods:
According to the predefined inclusion and exclusion criteria, 23 articles were selected for this meta-analysis. All patients were treated with LC with or without PTGD. A meta-analysis was used to analyze the clinical efficacy.
Results:
Compared with LC, all the surgical indicators of LC with PTGD were significantly better than LC alone (all
6.Clinical Study on the Treatment of Moderate to Severe Stenosing Tenosynovitis of the Flexor Digitorum Tendon with 45° Arc Edge Needle Incision and Traditional Needle Knife Release Surgery
Yingcun MA ; Yingbo MENG ; Xuechang WANG ; Dongzhe ZHANG ; Yali SUN ; Shaodan CHENG
World Science and Technology-Modernization of Traditional Chinese Medicine 2024;26(1):268-274
Objective To study the safety and effectiveness of arc edge needle therapy for moderate to severe tenosynovitis of the flexor digitorum tendon in the thumb.Methods A total of 62 patients with moderate to severe stenosing tenosynovitis of the flexor digitorum thumb who met the inclusion criteria were collected.The patients were randomly assigned 1:1 to the arc edge needle group and the needle knife group using a random number table method.Among them,31 patients in the arc edge needle group were treated with arc edge needles,while 31 patients in the needle knife group were treated with traditional needle knife release surgery.Both groups were treated once.Record the number rating scale(NRS),range of motion(ROM),Quinell grade,and disease efficacy score(WDES)of patients before and after treatment at various stages(1 week,2 weeks,4 weeks),and at follow-up after 24 weeks to evaluate the treatment effect.Results During the 24 weeks follow-up of 62 patients after treatment,the Quinell grading comparison between the two groups showed that the arc edge needle group was better than the needle knife group(P<0.05);The total effective rate of disease efficacy score(WDES)was 96.77%in the arc edge needle group and 83.87%in the needle knife group.The clinical total effective rate of the arc edge needle group was better than that of the needle knife group(P<0.05);After treatment,both groups showed significant improvement in pain numerical score(NRS)and joint range of motion(ROM),and the degree of improvement increased over time(P<0.05);And the inter group comparison at 1 week,2 weeks,4 weeks and 24 weeks time points after treatment showed that the curved blade needle was superior to the needle knife group in improving pain and joint mobility(P<0.05).Conclusion Both the 45° tenosynovitis incision and release surgery with arc edge needle and traditional needle knife release surgery are effective in treating moderate to severe tenosynovitis of the thumb flexor digitorum tendon.However,the 45° tenosynovitis incision and release surgery with arc edge needle has significant advantages in improving pain,interphalangeal joint mobility,and safety.
7.The value of plaque-to-aorta CT value ratio in differentiating coronary lipid and fibrous plaques
Yaqi GAO ; Xuechang ZHANG ; Yao PAN ; Wei WU ; Zhaoqian WANG ; Xixia SUN ; Shuang PAN ; Hao WANG ; Zhiqiang YANG ; Chongfu JIA
Journal of Practical Radiology 2024;40(2):217-221
Objective To explore the value of plaque-to-aorta CT value ratio(standardized CT value)in differentiating coronary lipid and fibrous plaques,and to preliminarily analyze the stability of the cutoff.Methods Patients who underwent coronary computed tomography angiography(CCTA)and intravascular ultrasound(IVUS)within 1 week were included.The plaque CT value was obtained by measuring the all,four and two short-axis planes,respectively.The CT value of the ascending aorta was measured and standardized(plaque-to-aorta CT value ratio).The receiver operating characteristic(ROC)curves of the standardized and the traditional CT values were drawn.Results A total of 60 patients with 74 plaques were included,35 lipid and 39 fibrous plaques were diagnosed by IVUS.The aorta CT value was significantly correlated with the plaque(r=0.420,P<0.01);the cutoffs for the CT value of all,four and two plaque slices were 55 HU,48 HU and 52 HU,respectively,and all there of the cutoffs of standardized CT value were 0.149;the sensitivity,specificity,positive predictive value(PPV)and negative predictive value(NPV)of four-slice traditional and standardized CT values to differentiate lipid and fibrous plaques were 69%,87%,83%,76%and 91%,82%,82%,91%,respectively.Conclusion Compared with traditional CT value,the standardized CT value can greatly improve the sensitivity and NPV in differentiating coronary lipid and fibrous plaques,while maintaining modest to high specificity and PPV.Furthermore,the cutoff is stable.