1.Study on TCM Quality and Safety Based on HACCP System
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(1):12-14
This article described the current status of problems in quality and safety in TCM industry. It also emphatically discussed the quality and safety control in TCM production process. In addition, this article used the HACCP (Hazard Analysis and Critical Control Points) system to conduct a hazard analysis on TCM production process and determined the critical control points, and carried out the corresponding control measures, with a purpose to realize effective regulation and control of hazard factors and ensure TCM quality and safety.
2.Treatment of Facial Wrinkels with Char-Free Carbon Dioxide Laser and Erbium: YAG Laser.
Korean Journal of Dermatology 1999;37(2):177-184
BACKGROUND: Laser facial skin resurfacing has become a method of treatment for photoaging and pigmentary conditions. Although excellent results can be obtained by high-energy, pulsed carbon dioxide(CO2) laser, significant morbidity exists due to the considerable thermal damage to the skin. The Erbium: Yttrium Aluminum Garnet(Er: YAG) laser, with a wavelength of 2940 nm, is well absorbed in water. This leads to a very small zone of thermal necrosis, compared ta the CO2 laser. OBJECTIVE: The purpose of this study was to evaluate the results of the combined use of the char-free CO2 laser and the Er: YAG laser in the treatment of facial wrinkles. METHODS: Forty-six patients, aged between 30 and 68 years, with facial wrinkles, were evaulated. Two types of resurfacing laser systems were utilized in this study, a high-energy, short-pulsed CO2 laser and a Er: YAG 1aser. Wrinkle improvement was evaulated by the patients satisfaction, clinical improvement, and photographic analysis before and after the resurfacing procedure. RESULTS: Twenty-six of the 46 patients had greater than an 80% improvement, and 19 patients had a 60-80% improvement. Only one patient showed a 50% or less improvement. CONCLUSIONS: The combination of char-free CO2 laser and Er: YAG laser for facial wrinkles is a safe and effective modality for laser skin resurfacing.
Aluminum
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Carbon Dioxide*
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Carbon*
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Erbium*
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Humans
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Lasers, Gas*
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Lasers, Solid-State*
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Necrosis
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Skin
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Water
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Yttrium
4.A Case of Letterer - Siwe Disease.
Korean Journal of Dermatology 1978;16(3):207-213
Letterer-Siwe disease in an acutely onset, progressive and fatal disorder of RES, usually appears in male children, chareacterized by constitutional signs and extraos-seous lesions. This case occurred in a 18-day-old female showing hepatomegaly, hemorrhagic crusted papular eruptions on the entire body, and abdominal distension. Direct smear of scraping materials from the skin lesion showed numerous histiocytes. Hematologic and other laboratory examinatons showed no abonormalities.
Child
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Female
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Hepatomegaly
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Histiocytes
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Histiocytosis, Langerhans-Cell
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Humans
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Male
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Skin
5.Hepatocyte growth factor and basic fibroblast growth factor induce differentiation of human bone marrow mesenchymal stem cells into hepatic lineage cells
Yi ZHANG ; Yuanmei CHE ; Yang WANG
Chinese Journal of Tissue Engineering Research 2007;11(7):1397-1400
BACKGROUND: Within the bone marrow stroma there exists a subset of non-hematopoietic stem cells referred to as marrow stromal cells or mesenchymal stem cells. Mesenchymal stem cells (MSCs) are a group of cells with highly capability of self-renew and potential of multilineage differentiation, these properties make them present a promising prospect for clinical practice. Of particular concern is hepatogenic potential that can be used for liver-directed stem cell therapy and transplantation. However, the culture system has not been developed.OBJECTIVE: To explore whether human MSCs are able to differentiate into functional hepatocyte-like cells with hepatocyte growth factor (HGF) and basic fibroblast growth factor (bFGF) in vitro.DESIGN : Open study.SETTING: Department of Infectious Disease and Institute of Urology Surgery, First Affiliated Hospital, Nanchang University.MATERIALS: The study was performed in the Institute of Urolgoy Surgery, the First Affiliated Hospital of Nanchang University from July 2004 to March 2005. Bone marrow was donated by healthy adult with informed consent. DMEM/F12 medium (Gibco); insulin, transferrin, human epidermal growth factor (EGF); human HGF; monoclonal antibodies against human AFP; FITC-conjugated rabbit anti-mouse IgG (Sigma); human bFGF (Invitrogen); monoclonal antibodies against human CK18 and CK19 (Chemicon); fetal bovine serum (Si jiqin, Hangzhou).METHODS: Bone marrow (10 mL) in this study was aspirated from the iliac crest of healthy donors. MSCs were isolated by density gradient centrifugation in combination with plastic adherence. For hepatic differentiation, the 4th- to 8th-passage human MSCs seeded on 24-well tissue culture plates coated with 0.1% gelatin, at 1×104 MSCs/mL, were serum deprived for 2 days, in DMEM/F12 supplemented with 10 μg/L EGF, 10 μg/L bFGF, 5 mg/L insulin and 5 mg/L transferrin. Differentiation was induced by treating MSCs with differentiation medium, consisting of DMEWF12 supplemented with 10 μg/L bFGF, 20 μg/L HGF, 5 mg/L insulin, 5 mg/L transferrin. Medium changes were performed every three days. MSCs without HGF and bFGF in medium served as the control. In the differentiating period, the concentration of AFP in the suernatant was determined dynamically by radioimmunoassay (RIA). The hepatic surface phenotype including AFP, CK18 and CK19 were identified by immunofluorescent staining at day 0, 7, 14, 21 and 28. Glycogen storage was detected by Periodic Acid-Schiff (PAS) staining.MAIN OUTCOME MEASURES: ① the morphological changes of induced MSCs; ② the concentration of AFP in the supernatant; ③ the hepatic surface phenotype; ④ glycogen storage.RESULTS: ① After 14 days ofinduction, the fibroblast-like morphology of human MSCs was lost and cells became broadened and fiattened. After prolonged culture, polygonal cells were seen and further matured hepatocyte-like colonies were seen by day 28. ② The concentration of AFP in the supernatant was first detected on day 14, at a concentration of 0.1 μg/mL, and increased to 0.4 μg/mL by day 17, then decreased to 0.3 μg/mL by day 21. ③ Immunofiuorescent staining showed the expression of AFP and CK18 until day 14. The expression of CK19 was detected by day 28. ④ Glycogen storage could be detected by day 21.CONCLUSION: Human bone marrow MSCs are able to differentiate into functional hepatocyte-like cells and may sere as a new source of cells for cell therapy of hepatic diseases.
6.Comparison of different disinfection sterilization for dental handpieces
Feng CHE ; Meiyun YANG ; Hongyu JIANG
Chinese Journal of Primary Medicine and Pharmacy 2010;17(21):2938-2939
Objective Compared with povidone iodine solution to clean,glutaraldehyde immersion,highpressure steam sterilization of three disinfection methods for dental handpiece sterilization effect.Methods Select the 20 dental clinical used over phone,were randomly divided into A group,B group,C group,D group 5,A group for the control group,only cleaning method did not use any disinfection,B group was 1% Polyvinylpyrrolidone iodine solution,wipe,C group were soaked in 2% glutaraldehyde soluton,D group were treated with high-pressure steam sterilization,after each phone were inoculated with bacteria sample dish,the more monitoring of four groups of bacterial culture.Results A group of bacterial culture for the intensive growth of bacteria,B group had bacterial growth for the(+ ~+ + +),bacterial growth;C group had bacterial culturegrowth was(+ ~ + +),bacterial growth;D group of bacterial culture Growth of(-),no bacterial growth.Conclusion High-pressure steam sterilization was the disinfection of dental handpieces most effective way.
7.Content Determination of Baicalin in Yangyin Mixture by HPLC
Keke CHE ; Fan YANG ; Kaiying DENG
China Pharmacy 2016;27(24):3410-3412
OBJECTIVE:To establish a method for the content determination of baicalin in Yangyin mixture. METHODS:HPLC was performed on the column of SunFire C18 with mobile phase of methnol-water-phosphoric acid(43∶57∶0.2,V/V/V)at a flow rate of 1.0 ml/min,the detection wavelength was 280 nm, column temperature was 30 ℃,and the volume injection was 10 μl. RESULTS:The linear range of baicalin was 0.055 75-1.115 μg(r=0.999 9);RSDs of precision,stability and reproducibility test were lower than 2%;recovery was 95.39%-98.44%(RSD=1.19%,n=6). CONCLUSIONS:The method is simple,rapid and accurate,and suitable for the content determination of baicalin in Yangyin mixture.
9.ATRA combined with IFN? to induce differentiation and growth inhibition of NB cells.
Yanmin YANG ; Yuqin CHE ; Yan LU
Chinese Journal of Practical Internal Medicine 2001;0(10):-
Objective To study the effect of ATRA and IFN? on growth and differentiation of SH-SY5Y cell line and the possible molecular mechanisms.Methods The expression of TrkA mRNA was detected by RT-PCR.Trypan blue exclusion was used to detect the antiproliferative effect of ATRA,IFN?and ATRA +IFN? on SY5Y cells.Morphologic changes were observed using phase-contrast microscopy.Results TrkA mRNA was upregulated by ATRA and IFN?.ATRA and IFN? could induce morphological differentiation and inhibit growth of SY5Y cells.The combination of ATRA+IFN? enhanced the induced differentiation and growth inhibition of SY5Y cells.Conclusion Synergistic effects of ATRA and IFN? on growth inhibition and inducing differentiation in SY5Y cells are observed and this may result from upregulating the expression of TrkA mRNA.
10.Clinical study of video-assisted mini-thoractomy surgery for lung tumor with lymphadenectomy
Jiaming CHE ; Weicheng QIU ; Xiaoqing YANG
China Oncology 2000;0(06):-
Background and purpose: VATS lobectomy has gained popularity for lung tumor around the world during the recent twenty years.Complete anatomic resections and node dissections are routinely being performed at many centers under VATS, but some thoracic surgeons are concerned regarding the safety, benefit and radical resection of this operative method. Our study was aimed to evaluate the reliability and feasibility of pulmonary resection and lymphadenectomy by video-assisted mini-thoractomy (VAMT) for patients with lung tumor.Methods:From August to September 2006,radical lobectomy or pneumonectomy and systemic lymphadenectomy were performed on 9 patients with lung tumor through video assisted mini-thoracotomy surgery.incidence of complications, total number of dissected lymph nodes,number of metastatic lymph nodes,survival and life quality were evaluated.Results:Totally 100 lymph nodes were removed at average 15.0 minutes, and there was no accident and death happened in the whole operation which only consumed 2.3 hours. Serious postoperative complications and death also did not happen.Conclusions:Video assisted mini-thoracotomy surgery should fulfill the same quality lymphadenectomy and lung tumor definitive resection.