1.Ultrasonic liposuction and minimal areolar incision for gynecomastia
Journal of Chongqing Medical University 2003;0(05):-
Objective:To investigate the effect of Ultrasonic liposuction and minimal areolar incision for gynecomastia.Methods:Employ Ultrasonic liposuction to suck out the fat and part of the gland in the operational zone first.Then resect the hypertrophic mammary tissues through a minimal incision around areola of breast.Result:49 patients treated by the methode and 6 months to 3 years follow-up showed good results.Conclusion:It was a smple,convenient safe and effective method of breast reduction for fatty glandular type gynecomastia.
2.Various stent materials for intracranial arteriostenosis: Complication prevention and application development
Chinese Journal of Tissue Engineering Research 2010;14(9):1685-1688
OBJECTIVE:To explore the treatment effect and complication prevention of various stent materials for intracranial arteriostenosis.METHODS:A computer-based online search of Science Direct and Ei database (1998-01/2009-10) was performed for English articles with the key words of "intracranial arteriostenosis,stent placement" In addition,CNKI and CBM database (1998-01/2009-10) were searched for related Chinese articles with the same key words in Chinese.Moreover,related works were manually searched.Studies regarding various stent materials for intracranial arteriostenosis were included,including basic and clinical experiments.RESULTS:Multicenter studies of worldwide show that stent implantation displays obvious advantages in treating carotid artery stenosis compared with carotid endarterectomy.Recently,with developing of balloon and stent compliance,as well as stent technology,and application of various novel materials and cerebral protection device,stent has become a safe and effective therapy for intracranial arteriostenosis.However,complications following stent implantation,such as restenosis,ischemic stroke,cerebral hemorrhage hypertransfusion syndrome,and cerebral angiospasm,limit its application.CONCLUSION:The safety and efficacy of intracranial stent implantation remains validation of multicenter and perspective studies.High incidence of restenosis following stent implantation requires further improvement.
3.Clinical value of MRI perfusion imaging in breast tumors
Journal of Medical Postgraduates 2003;0(07):-
Breast tumor is the most common malignant tumor in female,its incidence is increasing in recent years.With magnetic resonance equipment,image acquisition and processing technology is improved,perfusion imaging studies gradually become the focus of study.The author reviewed MRI perfusion imaging and its application in breast tumors.
4.Effect of levosimendan on myocardial injury in patients with sepsis
Chinese Journal of Primary Medicine and Pharmacy 2021;28(4):533-537
Objective:To investigate the effect of levosimendan on myocardial injury in patients with sepsis.Methods:Eighty-two patients with sepsis complicated by myocardial injury who received treatment in Yinzhou Second Hospital from June 2015 to September 2017 were included in this study. They were randomly assigned to receive either dobutamine treatment (control group, n = 41) or levosimendan treatment (study group, n = 41) based on conventional basic treatment. Before and after treatment, serum levels of heart-type fatty acid-binding protein (H-FABP), cardiac troponin I (cTnI), N-terminal pro brain natriuretic peptide (NT-proBNP), left ventricular ejection fraction (LEVF), Acute Physiology, Age, and Chronic Health Evaluation II (APACHE II) score, intensive care unit (ICU) stay, and 28-day mortality were compared between the control and study groups. Results:Before treatment, there were no significant differences in serum levels of H-FABP, cTnI, and NT-proBNP as well as LVEF and APACHE II score between the control and study groups (all P > 0.05). At 6 hours after treatment, serum levels of H-FABP, cTnI, and NT-proBNP in the control and study groups [(26.22 ± 7.22) μg/L vs. (39.93 ± 9.85) μg/L, (25.97 ± 6.93) μg/L vs. (34.86 ± 8.55) μg/L, (0.004 ± 0.002) μg/L vs. (1.580 ± 0.360) μg/L, (0.003 ± 0.003) μg/L vs. (0.760 ± 0.210) μg/L, (1 561.73 ± 633.70) ng/L vs. (2 570.06 ± 747.95) ng/L, (1 602.28 ± 681.45) ng/L vs. (2 225.53 ± 585.14) ng/L] were significantly increased compared with before treatment ( t = 7.188, 5.172, 28.031, 23.079, 6.586, 4.443, all P < 0.05). After treatment, serum levels of H-FABP, cTnI, and NT-proBNP in the study group were significantly lower than those in the control group ( t = 2.489, 12.598, 2.323, all P < 0.05). In each group, serum level of H-FABP at 72 hours after treatment was significantly lower than that at 6 hours after treatment [(39.93 ± 9.85) μg/L vs. (6.28 ± 1.07) μg/L, (34.86 ± 8.55) μg/L vs. (5.82 ± 1.88) μg/L], serum levels of cTnI and NT-proBNP at 72 hours after treatment were significantly increased compared with those at 6 hours after treatment [(1.58 ± 0.36) μg/L vs. (2.72 ± 0.55) μg/L, (0.76 ± 0.21) μg/L vs. (1.78 ± 0.49) μg/L, (2 570.06 ± 747.95 ) ng/L vs. (3 623.27 ± 1 105.28) ng/L, (2 225.53 ± 585.14) ng/L vs. (3 128.08 ± 1 098.07) ng/L, t = 11.105, 12.251, 5.053, 4.645, all P < 0.05). At 72 hours after treatment, serum levels of cTnI and NT-proBNP levels in the control group were significantly higher than those in the study group ( t = 8.171, 2.035, both P < 0.05). At 72 hours after treatment, there was no significant difference in serum H-FABP level between the control and study groups ( P > 0.05). At 72 hours after treatment, APACHE II score in each group was significantly decreased and LVEF in each group was significantly increased compared with before treatment ( t = 7.718, 11.380, 9.049, 9.501, all P < 0.05). The change in APACHE II score at 72 hours after treatment relative to before treatment in the study group was more obvious than that in the control group ( t = 2.583, P < 0.05). At 72 hours after treatment, there were no significant differences in LVEF, ICU stay and 28-day mortality between the control and study groups (all P > 0.05). Conclusion:Levosimendan can reduce the serum levels of H-FABP, cTnI and NT-proBNP as well as APACHE II score in patients with sepsis, increase serum level of LVEF, and alleviate myocardial injury.
6.Determination of the Concentration of 5-Fluorouracil in Human Plasma With HPLC
Bin DENG ; Bin REN ; Shuxia LI ; Lei TANG ; Xiaodan HONG
China Pharmacy 1991;0(06):-
OBJECTIVE:To establish a HPLC method for the determination of 5-fluorouracil in human plasma METHODS:The plasma samples were extracted with ethyl acetate-isopropanol(85∶15,V/V)following precipitation of plasma proteins with ammonium sulfate The solvent was evaporated to dryness under a stream of nitrogen The dry extract was dissolved in mobile phase and then injected into the Diamonsil C18 column(150mm?4 6mm,5?m)and 0 01mol/L KH2 PO4(pH5 5) was taken as mobile phase The flow rate was 1 5ml/min,UV detection wavelength was 267nm The internal standard was 5-bromouracil RESULTS:The minimal detectable drug concentration in plasma was 0 025?g/ml The calibration curve was linear over a range from 0 3?g/ml to 10?g/ml The intra-day RSD≤5 0%(n=5) and the inter-day RSD≤11 5%(n=5) CONCLUSION:The method can be used for studying the pharmacokinetics and bioavailability of 5-fluorouracil
7.Effects of antler powder on treatment of corticosteroid-induced avascular necrosis of the femoral head in rats
Baktursun Pharhat ; Hao Peng ; Bin-bin Li ; Lei Huang
Chinese Journal of Tissue Engineering Research 2011;15(24):4541-4544
BACKGROUND: Long-term utilization of steroid hormone easily induces avascular necrosis of the femoral head (ANFH). Cornu Cervi Pantotrichum possesses bone growth factor and can promote wound healing and tissue repairing, which may has effect on treatment of ANFH. OBJECTIVE: To investigate therapeutic effect of antler powder on ANFH induced by corticosteroids in rats. METHODS: Totally 42 male wistar rats were randomly divided into the blank control, model and high-, moderate- and low-dose treatment groups. Exception those in the blank control group, all rats were intragluteally injected with dexamethasone at 30 mg/kg twice per week for 6 weeks to induce ANFH. Then the rats were treated with antler powder by oral gavage at 200, 400 and 800 mg/kg dosage, once per day for 60 days. Same volume of physiological saline was gavaged in the blank control and model groups. Serum lipid level and bone mineral density (BMD) of femur were measured, pathological change and expression of vascular endothelial growth factor (VEGF) were investigated. RESULTS AND CONCLUSION: Steroid hormone intervention resulted in obviously ANFH in rats. After treatment with antler powder, the degree of necrosis was significant reduced. Compared with the model group, BMD were increased, total cholesterol, triacylglycerol, and low density lipoprotein levels were decreased, and the VEGF expression increased in the treatment groups. The results suggest that antler powder has a positive curative effect on ANFH by promoting bone formation, fat metabolism and increasing VEGF expression.
8.Expression of TNF-? and TGF-? in oral lichen planus patients
Lei LEI ; Haiwei ZHANG ; Zhenzhen ZHONG ; Bin DU
Chinese Journal of Pathophysiology 2000;0(07):-
AIM: To investigate the expression of TNF-?, TGF-? in patients with oral lichen planus (OLP) and normal oral mucosa (NOM). METHODS: An immunohistochemical technique was performed to detect TNF-?, TGF-?_1 and TGF-?_2 expression in 22 cases with OLP and 10 normal controls. RESULTS: In lamina propria of OLP, the expression of TNF-? and TGF-?_1 were increased, whereas TGF-?_2 did changed significantly compared with control group. TNF-? positive signal were mostly found in macrophages, lymphocytes. TGF-?_1 positive cell was present in macrophages, endothelial cells and fibrocytes. CONCLUSION: TNF-? and TGF-?_1 play an important role in the development and maintenance of OLP local inflammation.
9.Effects of wt-p53, BT-1 and CM-CSF genes cotransfection on proliferation and immunogenicity of SH-SY5Y cell lines
Fang CHEN ; Lei LIU ; Bin WANG
International Journal of Pediatrics 2009;36(2):116-119
Objective To observe the effeet of cotransduction of wt-p53,B7-1 and GM-CSF genes mediated by recombinant adenovirus on cell growth, apoptosis and immunogenicity of neuroblastoma cell line SH-SY5Y, Methods We transfected SH-SYSY cells separately with recombinant adenovirus, recombinant adenovirus mediating human wild type p53(wt-p53) gene and BB-102.We separately named them with SH/Ad,SH/p53 and SH/BB-102 group.The protein expression of p53, B7-1 and GM-CSF were measured by Western blot, FCM and enzyme linked immunosorbent assay. Cell number was counted and growth curves were drawed. Cell apoptosis was tested by FCM. Lymphocyte proliferation and cytokine secretory was evaluated by mixed lymphocyte culturing. Results After transection with BB- 102, p53, B7-1, and GM-CSF, high-efficiency expression of target genes were found. Growth of the cells was inhibited, apoptosis was induced in the SH/p53 and SH/BB-102 groups. Proliferation of lymphocytes was stimulated and cytokine increased visorously in the SH/BB-102 group. Condusions After transfection with BB-102, growth of the SH-SY5Y cells was inhibited,apoptosis was induced,and immunogenicity was greatly enhanced.
10.Gold nanoparticles in tumor sensitize radiotherapy:how to maximize the effect of gold nanorods?
Chinese Journal of Tissue Engineering Research 2014;(39):6369-6374
BACKGROUND:Gold nanorods have unique optical properties, good histocompatibility, easily control ed surface modification, which have a broad application prospect in the field of biology and medicine. OBJECTIVE:To summarize the optical and thermal properties of gold nanoparticles, and to review the mechanism and research advances of gold nanoparticles, especial y gold nanorods in tumor sensitize radiotherapy. METHODS:A computer-based search of PubMed and CNKI databases was undertaken with the keywords of“gold nanoparticles, radiotherapy sensitivity”in English and Chinese, respectively. The included articles were related to nanoparticles used in vitro and in vivo for clinic study as wel as gold nanoparticles-related tumor sensitize radiotherapy. RESULTS AND CONCLUSION:Gold nanoparticles exhibit unique properties of surface plasmon resonance properties. Compared with the traditional spherical gold nanoparticles, gold nanorods are capsule-like gold nanoparticles containing two absorption peaks that are a transverse surface plasmon resonance absorption peak and a longitudinal surface plasmon resonance absorption peak corresponding to the dimensional characteristics of their horizontal axis and vertical axis, respectively. By regulation of the ratio of horizontal axis and vertical axis, we can realize the manipulation of the longitudinal surface plasmon resonance absorption peak location. Thus, the longitudinal surface plasmon resonance absorption peak can be changed from visible region to the near-infrared region which is the most ideal optical transmission through for al of biological tissues. As a kind of novel radiotherapy sensitization agent, gold nanorods have the properties of low toxicity, high efficiency, high yield. Its sensitization effect is not only related to the exposure dose, own concentration and size, surface modified compounds, but also related to the types of radiation and celllines. However, for radiotherapy sensitization of gold nanorods how to avoid the limits of radioactive ray species, choose appropriate trim and maximize the use of gold nanorods stil need a further research.