1.The study and application of a device with automatically preparing and filling drug solution
Lin-Kuan WANG ; Cun-Sheng QIAN ; Yue-Xuan NI ;
Chinese Medical Equipment Journal 1989;0(02):-
This device is composed of dissolving bucket,magnetic pump,four-passage valve,heater, stirrer,filter,speed-changing equipment,dividedfilling controller and etc.It can be used for preparing and filling various liquid medicament,such as oral or external-use solution,colloid,emulsion and suspension. The proposed device is highly automatic and efficient.Time and labour saving,simple and safe.Moreover, its performance is reliable and stable,and the working capacity is large.
2.Effects of the tirofiban on the application timing for coronary intervention
The Chinese Journal of Clinical Pharmacology 2014;(5):394-396
Objective To evaluate the clinical efficacy of early stage u-sing of tirofiban in the treatment of coronary atherosclerotic herat disease ( CAHD) by percutaneous coronary intervention ( PCI).Methods Two hundred and six cases with CAHD were included in this study and divid-ed into 3 groups.The perioperation group with 60 cases [ tirofiban using 24-hour before PCI, 0.4 μg· (kg· min) -1],ivggt,30 min, followed by 0.1μg· (kg· min) -1, the immediate group with 56 cases( tirofiban using in the procedure of PCI ) and the control group with 90 case(with-out tirofiban ).The platelet aggregation , thrombolysis in myocardial in-farction ( TIMI ) improvement and major cardiovascular events were com-pared among the three groups.Results The platelet aggregation was sig-nificant decreased in the three groups compared with prior PCI ( both P<0.05 ) , with the immediate group and perioperation group much lower than control group ( P <0.05 ) .The grade 3 TIMI was significant in-creased after PCI ( both P<0.05 ) with immediate group and periopera-tion group much higher than control group ( P<0.05 ) .The complication incidence in the control group was higher than that in immediate and perioperation groups ( P<0.05 ).Conclusion Tirofiban is safe in the treatment of CAHD by PCI which can significantly inhibit platelet aggre-gation and reduce the risk of acute thrombosis.
3.Combination of multiplex reverse transcription recombinase polymerase amplification assay and capillary electrophoresis provides high sensitive and high-throughput simultaneous detection of avian influenza virus subtypes
Shou-Kuan TSAI ; Chen-Chih CHEN ; Han-Jia LIN ; Han-You LIN ; Ting-Tzu CHEN ; Lih-Chiann WANG
Journal of Veterinary Science 2020;21(2):e24-
The pandemic of avian influenza viruses (AIVs) in Asia has caused enormous economic loss in poultry industry and human health threat, especially clade 2.3.4.4 H5 and H7 subtypes in recent years. The endemic chicken H6 virus in Taiwan has also brought about human and dog infections. Since wild waterfowls is the major AIV reservoir, it is important to monitor the diversified subtypes in wildfowl flocks in early stage to prevent viral reassortment and transmission. To develop a more efficient and sensitive approach is a key issue in epidemic control. In this study, we integrate multiplex reverse transcription recombinase polymerase amplification (RT-RPA) and capillary electrophoresis (CE) for high-throughput detection and differentiation of AIVs in wild waterfowls in Taiwan. Four viral genes were detected simultaneously, including nucleoprotein (NP) gene of all AIVs, hemagglutinin (HA) gene of clade 2.3.4.4 H5, H6 and H7 subtypes. The detection limit of the developed detection system could achieve as low as one copy number for each of the four viral gene targets. Sixty wild waterfowl field samples were tested and all of the four gene signals were unambiguously identified within 6 h, including the initial sample processing and the final CE data analysis.The results indicated that multiplex RT-RPA combined with CE was an excellent alternative for instant simultaneous AIV detection and subtype differentiation. The high efficiency and sensitivity of the proposed method could greatly assist in wild bird monitoring and epidemic control of poultry.
4.The expression of humanized Fab fragment of the anti-HBsAg antibody in methylotropic yeast Pichia pastoris.
Ning DENG ; Kuan-Yuan SU ; Xun-Zhang WANG ; Qing-Xin LONG ; Lin YANG ; Zhou-Yao YU
Chinese Journal of Biotechnology 2002;18(5):546-550
Using of two-step integrating technology, transducted the H and L chain gene of humanized Fab fragment of anti-HB-sAg antibody into the genome of methylotropic yeast P. pastoris. Constructed a engineering yeast to produce humanized Fab fragment of the anti-HBsAg antibody. The Fab fragment was efficiently secreted into the medium at a concentration of 50-80 mg/L. The Fab fragment was purified from culturing supernatant of the recombinant yeas by affinity chromatography. The ELISA analysis showed the high affinity of the expressed humanized Fab fragment to the HBsAg.
Chromatography, Affinity
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Cloning, Molecular
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Enzyme-Linked Immunosorbent Assay
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Hepatitis B Antibodies
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biosynthesis
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genetics
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isolation & purification
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Hepatitis B Surface Antigens
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immunology
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Humans
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Immunoglobulin Fab Fragments
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biosynthesis
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genetics
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isolation & purification
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Pichia
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genetics
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Recombinant Proteins
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biosynthesis
;
isolation & purification
5.Novel roles of Skp2 E3 ligase in cellular senescence, cancer progression, and metastasis.
Guocan WANG ; Chia-Hsin CHAN ; Yuan GAO ; Hui-Kuan LIN
Chinese Journal of Cancer 2012;31(4):169-177
S-phase kinase-associated protein 2 (Skp2) belongs to the F-box protein family. It is a component of the SCF E3 ubiquitin ligase complex. Skp2 has been shown to regulate cellular proliferation by targeting several cell cycle-regulated proteins for ubiquitination and degradation, including cyclin-dependent kinase inhibitor p27. Skp2 has also been demonstrated to display an oncogenic function since its overexpression has been observed in many human cancers. This review discusses the recent discoveries on the novel roles of Skp2 in regulating cellular senescence, cancer progression, and metastasis, as well as the therapeutic potential of targeting Skp2 for human cancer treatment.
Animals
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Cell Movement
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Cellular Senescence
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Cyclopentanes
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pharmacology
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Disease Progression
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Drug Delivery Systems
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methods
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Gene Expression Regulation, Neoplastic
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Humans
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Neoplasms
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metabolism
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pathology
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therapy
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Pyrimidines
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pharmacology
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S-Phase Kinase-Associated Proteins
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antagonists & inhibitors
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metabolism
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physiology
;
Ubiquitination
6.Analysis of T lymphocyte absolute number and function in the early phase after haploidentical hematopoietic stem cell transplantation.
Li DING ; Lei DONG ; Xiao-Li ZHENG ; Shan-Shan LIN ; Heng ZHU ; Zhi-Dong WANG ; Hong-Ming YAN ; Zi-Kuan GUO ; Heng-Xiang WANG ; Zu-Ze WU
Journal of Experimental Hematology 2013;21(3):702-706
This study was purposed to investigate the immune reconstitution of T-cells in patients who received haploidentical hematopoietic stem cell transplantation (hiHSCT). The peripheral blood was harvested from 22 patients before transplantation and at month 1, 3, 6 after hiHSCT. The proportions of T lymphocyte subtypes including CD3(+), CD4(+), CD8(+), CD45RO(+), and CD45RA(+)CD62L(+) were analyzed by flow cytometry, followed by the calculation of T cell numbers according to the amounts of peripheral blood leukocytes. Adenosine triphosphate (ATP) value in CD4(+) T cells was measured by ImmuKnow method to evaluate the function of lymphocytes. The results showed that the CD3(+) cell absolute value before transplantation was 833.75 ± 359.84/µl, but those values at month 1, 3, 6 after transplantation were 318.87 ± 266.71/µl, 1006.76 ± 512.32/µl and 1296.38 ± 958.77/µl respectively. The CD4(+) cell absolute value before transplantation was 336.99 ± 211.11/µl, but such values at month 1, 3, 6 after transplantation were 45.89 ± 44.21/µl, 142.97 ± 114.85/µl, and 181.78 ± 120.61/µl respectively. The CD8(+) cell absolute value before transplantation was 430.21 ± 159.48/µl, but those values at month 1, 3, 6 after transplantation were 230.44 ± 195.89/µl, 621.64 ± 318.83/µl, and 823.07 ± 633.55/µl respectively. The CD4(+)CD45RO(+) memory T cell absolute value before transplantation was 227.44 ± 73.34/µl, but such values at month 1, 3, 6 after transplantation were 43.47 ± 43.40/µl, 138.69 ± 110.17/µl, 147.73 ± 82.94/µl respectively. The CD8(+)CD45RO(+) memory T cell absolute value before transplantation was 212.70 ± 98.48/µl, but such values at month 1, 3, 6 after transplantation were 184.76 ± 168.65/µl, 445.90 ± 252.50/µl, 519.80 ± 475.53/µl respectively. CD4(+)CD45RA(+)CD62L(+) naive T cell number before transplantation was 68.94 ± 59.74/µl, but such cell numbers at month 1, 3, 6 after transplantation decreased to 2.44 ± 2.93/µl, 3.14 ± 3.48/µl, 23.22 ± 38.38/µl respectively. The CD8(+)CD45RA(+)CD62L(+) naive T cell absolute value before transplantation was 124.82 ± 60.95/µl, but those values at month 1, 3, 6 decreased to 19.37 ± 17.71/µl, 76.63 ± 50.85/µl, and 114.49 ± 174.29/µl respectively. The ATP value in CD4(+) T cells decreased to 210.19 ± 119.37 ng/ml at month 1 after transplantation and increased to 280.62 ± 110.03 ng/ml at month 3, and 357.28 ± 76.18 ng/ml at month 6 after transplantation. It is concluded that CD8(+) memory T cell reconstruction contributes critically to T cell recovery early after hiHSCT, while the thymic output function remains low. However, T cell function recovers to normal range at month 3 after transplantation.
Adolescent
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Adult
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CD8-Positive T-Lymphocytes
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cytology
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Child
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Child, Preschool
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Female
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Haplotypes
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Hematopoietic Stem Cell Transplantation
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Humans
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Immunophenotyping
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Killer Cells, Natural
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immunology
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Lymphocyte Count
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Male
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T-Lymphocyte Subsets
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immunology
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Young Adult
7.Hand-assisted laparoscopic radical gastrectomy: comparison between laparoscopic and open approach.
Yong-kuan CAO ; Li-ye LIU ; Jun ZHOU ; Guo-de LUO ; Yong-hua WANG ; Guo-hu ZHANG ; Pei-hong WANG ; Jia-qing GONG ; Lin ZHANG
Chinese Journal of Gastrointestinal Surgery 2012;15(7):740-742
OBJECTIVETo evaluate the short-term outcomes after hand-assisted laparoscopic radical gastrectomy.
METHODSBetween June 2010 and May 2011, a series of 15 patients underwent hand-assisted laparoscopic gastrectomy(HG), 16 patients underwent laparoscopic gastrectomy(LP), and 11 patients underwent open gastrectomy(OP). Short-term outcomes included operative time, blood loss, lymph nodes harvested, and the length of incision were collected after operation.
RESULTSThe operative time was 150-200 min in HG, 180-220 min in LP, and 150-200 min in OP respectively. The time of laparoscopic procedure was 18-58 and 70-100 min respectively. The average incision length was 6.8 cm in HG, 5.6 cm in LP, and 13.5 cm in OP. The average number of lymph nodes harvested was 17.6, 15.1 and 16.4 respectively. The average estimated blood loss was 228 ml, 278 ml, and 427 ml respectively. The mean length of hospital stay was 9.9, 10.8, and 12.4 d. No anastomotic leakage, bleeding, or gastric paralysis were found. One wound infection case was found in OP.
CONCLUSIONSHand-assisted laparoscopic gastrectomy is in concordance with the standardized treatment protocol for gastric cancer. Lymph node dissection is easier by HG, therefore HG can be an alternative for the radical resection of gastric cancer.
Adult ; Aged ; Female ; Gastrectomy ; methods ; Hand-Assisted Laparoscopy ; methods ; Humans ; Laparotomy ; Male ; Middle Aged ; Stomach Neoplasms ; surgery
8.Clinical study of Milan criteria for liver transplantation.
Zhong-yang SHEN ; Hong ZHENG ; Zheng-lu WANG ; Wen SHEN ; Zhi-jun ZHU ; Yong-lin DENG ; Cheng PAN ; Fu-kuan BAO
Chinese Journal of Surgery 2007;45(23):1615-1618
OBJECTIVETo investigate the value and deficiency of Milan criteria for liver transplantation in patients with hepatocellular carcinoma (HCC).
METHODSBetween December 2001 and November 2005, 125 patients underwent orthotopic liver transplantation ( OLT), who measured up Milan criteria with preoperation computerized tomography (CT) scanning. The results of pre-transplant multidetector CT scan and post-transplant pathology were retrospectively analyzed, and survival rates were compared.
RESULTSPathology examination demonstrated that 97 cases met Milan criteria (77.6%), 26 cases exceeded Milan criteria,and the other 2 cases were diagnosed as nodular cirrhosis. The 1-,2-,3-,4- and 5-year survival rates for those met pre-transplant multidetector CT scanning pre-transplant met Milan criteria vs. those met post-transplant pathology post-transplant criteria were 92.0% vs. 92.8%, 87.2% vs. 90.7%, 86.4% vs. 89.7%, 86.4% vs. 89.7%, and 86.4% vs. 89.7%, respectively. There was no statistic significant difference (P > 0.05). The 1-,2-,3-,4- and 5-year survival rates were 73.0%, 65.4%, 61.5%, 61.5% and 61.5%, for those pathology exceed Milan criteria respectively. The difference between this group and each of the above two were statistically significant (P < 0.05).
CONCLUSIONSThe prognosis of OLT for HCC is good for those met Milan criteria by pre-transplant multidetector CT. Factors leading to poor prognosis such as portal vein tumor thrombi and lymphatic metastasis should be accurately evaluated avoiding for misjudgement.
Adult ; Aged ; Carcinoma, Hepatocellular ; diagnostic imaging ; pathology ; surgery ; Female ; Follow-Up Studies ; Humans ; Liver Neoplasms ; diagnostic imaging ; pathology ; surgery ; Liver Transplantation ; methods ; mortality ; standards ; Male ; Middle Aged ; Retrospective Studies ; Survival Analysis ; Survival Rate ; Tomography, Spiral Computed
9.Effects of hepatitis B virus on human semen parameters and sperm DNA integrity.
Hao LIU ; Chun-Hui GENG ; Wei WANG ; Ke-Lin XIAO ; Li-Kuan XIONG ; Yong-Xiang HUANG ; Xiao-Ling YANG ; Jin LI
National Journal of Andrology 2013;19(10):896-898
OBJECTIVETo investigate the effects of hepatitis B virus (HBV) in semen on human semen parameters and sperm DNA integrity.
METHODSWe detected HBV DNA in the semen samples of 153 HBsAg-seropositive patients by real-time fluorescence quantitative PCR and calculated the sperm nuclear DNA fragmentation index (DFI) by sperm chromatin dispersion (SCD) assay. We compared the semen parameters between the HBV DNA-positive group (A, n = 43) and HBV DNA-negative group (B, n = 110) and analyzed the correlation of sperm DFI with the number of HBV DNA copies in the semen.
RESULTSHBV DNA was detected in 43 (28.1%) of the 153 semen samples. No statistically significant differences were observed in age, semen volume and sperm concentration between groups A and B (P >0.05). Compared with group B, group A showed significantly decreased sperm viability ([58.0 +/- 18.8]% vs [51.4 +/-17.1]%, P<0.05), progressively motile sperm ([29.6 +/- 13.3]% vs [24.5 +/- 10.1]%, P<0.05), average straight-line velocity ([23.7 +/- 4.0] microm/s vs [19.9 +/- 4.5 ] microm/s, P<0.01) and average path velocity ([26.5 +/- 7.0] microm/s vs [23.4 +/- 5.3] microm/s, P<0.01), but remarkably decreased sperm DFI ([19.3 +/- 8.0]% vs [24.2 +/- 9.4]%, P<0.01). The number of HBV DNA copies in semen exhibited a significant positive correlation with sperm DFI (r = 0.819, P < 0.01).
CONCLUSIONHBV DNA in semen is not significantly associated with the number of sperm, but may affect sperm viability, velocity and DFI. There is a load-effect relationship between the number of HBV DNA copies in semen and sperm nuclear DNA integrity.
Adult ; DNA Fragmentation ; DNA, Viral ; isolation & purification ; Hepatitis B Surface Antigens ; blood ; Hepatitis B virus ; genetics ; Humans ; Male ; Semen Analysis ; Sperm Count ; Spermatozoa ; virology
10.Validation of the Chinese Version of the Schizophrenia Cognition Rating Scale
Kuan-Wei HUANG ; Pao-Yen LIN ; Yu LEE ; Yu-Chi HUANG ; Chi-Fa HUNG ; Sheng-Yu LEE ; Chih-Ken CHEN ; Liang-Jen WANG
Psychiatry Investigation 2022;19(7):511-518
Objective:
The Schizophrenia Cognition Rating Scale (SCoRS) is an interview-based assessment tool for evaluating the cognitive deficit and daily functioning of patients with schizophrenia.
Methods:
Sixty-eight patients with schizophrenia and 68 age- and sex-matched healthy individuals were recruited to validate the Chinese version of SCoRS in this study. All participants underwent cognitive assessment using the SCoRS, which was verified by the Brief Assessment of Cognition in Schizophrenia (BACS), and the UCSD Performance-based Skills Assessment, Brief Version (UPSA-B). Patients with schizophrenia were additionally assessed using the Positive and Negative Syndrome Scale (PANSS).
Results:
SCoRS ratings reported by patients (SCoRS-S), those reported by the interviewer (SCoRS-I), and SCoRS global scores (SCoRS-G) showed significant correlation with all subscales of the BACS and the UPSA-B. On receiver operating characteristic curve analysis, SCoRS-S, SCoRS-I, and SCoRS-G significantly differentiated patients with schizophrenia from healthy controls. Moreover, SCoRS-S and SCoRS-I ratings showed positive correlation with the negative symptoms and general symptoms of PANSS.
Conclusion
The Chinese version of SCoRS showed good discriminant, concurrent, and external validity, suggesting that it is a useful and convenient tool for assessment of cognitive function among Mandarin-speaking patients with schizophrenia in clinical practice.