1.Correlation between polymorphism of CYP2D6 gene with effect of tamoxifen in patients with breast cancer
Chinese Journal of General Surgery 2014;29(4):299-302
Objective To investigate the correlation of CYP2D6 gene polymorphism and serum tamoxifen (TAM) and its active metabolites (4-hydroxy tamoxifen,4-OH-TAM) in terms of prognosis of breast cancer patients.Methods The oral mucosas and serum were obtained from 200 breast cancer patients receiving oral TAM from Jan 2008 to Oct 2010.Real-time RT-PCR was used to determine CYP2D6* 10 gene polymorphism.The relationship between CYP2D6* 10 gene polymorphism and clinicopathological features and prognosis was assessed by Chi-square test and Cox proportional model.Serum TAM and 4-OH-TAM concentration were determined by liquid chromatography-trap mass spectrometry (LC-MS).Results Of 200 breast cancer patients,CYP2D6 * 10/* 10 homozygotes were found in 94 cases (47%),CYP2D6 wt/wt wild type in 48 cases (24%) and CYP2D6 wt/* 10 heterozygote in 58 cases (29%).The concentration of serum 4-OH-TAM in patients with CYP2D6 wt/wt wild type and wt/* 10 heterozygote was significantly higher than that in patients with CYP2D6 * 10/ * 10 homozygote (F =4.31,P =0.01).CYP2D6 gene polymorphism was not related to clinicopathological features (P > 0.05).Logrank test showed that patient's disease-free survival with mutational CYP2D6 (mean,47.2 months) was significantly shorter than that in patients without mutational CYP2D6 (mean,51.2 months) (P =0.018).Cox proportional model showed that CYP2D6 genotype was related to disease-free survival (HR =2.755,95%CI:1.230 ~6.173,P =0.014).Conclusions CYP2D6 *10/* 10 genotype is related to curative effect of TAM on breast cancer patients,detection of CYP2D6 * 10/* 10 genotype helps improve the choice of TAM therapy.
2.Different Effects of Simvastatin on the Expression of Lectin-like Oxidized Low-Density Lipoprotein Receptor-1 (LOX-1) Induced by Oxidized Low-Density Lipoprotein (ox-LDL) or Glucose
Yang PENG ; Xue BAI ; Yi ZHANG ; Hui LI ; Yanmin YANG
Tianjin Medical Journal 2013;(11):1059-1062
Objective To investigate the effects of simvastatin on the expression of lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1) induced by oxidized low-density lipoprotein (ox-LDL) or Glucose in U937 macrophages, and explore the role of NF-κB in modulating of LOX-1 expression. Methods U937 macrophages were treated with PMA to induce differentiation, which were co-cultured with 50 mg/L ox-LDL or/and 25 mmol/L glucose. Pyrrolidine dithiocarbamate (PDTC) and simvastatin (1 μmol/L or 10 μmol/L) were used to treat cells. The expression of LOX-1 protein and NF-κB ac- tivity were detected by enzyme-linked immunosorbent assay technology. The expression of LOX-1 mRNA was measured by RT-PCR. Results The expression of LOX-1 was up regulated by ox-LDL, glucose and combination of both. The inhibitor of NF-κB PDTC suppressed this up-regulation. Simvastatin suppressed the expression of LOX-1 induced by ox-LDL, and showed a significant effect in the higher concentration. There was no significant effect of simvastatin on the expression of LOX-1 induced by glucose. The variation of NF-κB activity was similar to that of LOX-1 expression. Conclusion Simvas- tatin suppressed the expression of LOX-1 induced by ox-LDL, while no significant effect on the expression of LOX-1 in- duced by glucose. The expression and regulation of LOX-1 were related with NF-κB pathway.
3.System evaluation of health status and intervention in US Armed Forces
Shali XIE ; Hui LIN ; Yi MENG ; Yang YANG ; Xiao MA
Military Medical Sciences 2016;40(10):777-781
Objective To systematically evaluate the health status and intervention measures in the US Armed Forces, and to provide reference for the development of health promotion strategies in our army.Methods The PubMed, Medline, Springer, Elservier, HighWire and CNKI Database were searched electronically, with assigned search strategy for American military health status and intervention measures published from Jan.1997 to Dec.2015.Results There were 25 of pieces literature about training injury, low back pain, posttraumatic stress disorder, depression and cardiovascular disease that were screened.Conclusion The main health problems facing the US Armed Forces and the focus of the intervention measures involved training injuries, low back pain, mental illness and cardiovascular disease.Protection of military health is shifting from the single disease prevention to diversified comprehensive maintenance in the new era.
5.Comparison of two methods of creating gastric pouch in laparoscopic gastric bypass in bariatrics
Hui LIANG ; Wei GUAN ; Honghao WU ; Simei YANG ; Yi MIAO
Chinese Journal of General Surgery 2013;(6):424-426
Objective To compare the difficult degree,differences in gastric pouch volume,the complications,and postoperative weight loss effect of two gastric pouch practices in laparoscopic gastric bypass for bariatrics.Methods We retrospectively analyzed laparoscopic gastric bypass surgery in 76 bariatrics cases from May 2010 to May 2012.Two methods were used to create gastric pouch,among which 39 cases were operated with the dissection landmark method (called dissection),and 37 cases with bougie airbags 30 ml (called the bougie).Parameters were compared between the 2 groups including operation time for gastric pouch,the amount of staple cartridges,intraoperative complications,blood loss,and postoperative excess weight loss percentage (EWL %),the postoperative bleeding,obstruction,fistula and other complications.Results All patients were followed up for more than one month.The dissection group used longer time in creating gastric pouch than that in the bougie group [(58 ± 27) min,(42 ±21) min,P < 0.01].The number of staple cartridges used were significantly different between the two groups [(6.2 ±3.0),(4.3 ± 2.0),P < 0.01].There were 10 cases of complications in the dissection group (26%),and 3 cases in the bougie group (8%) (P <0.05).One month after the surgery,one each patient had transient hematochezia.There was no gastric pouch-related complications in the two groups postoperation.There was no difference in excess weight loss (P > 0.05).Conclusions The two methods can achieve the same effect on excess weight loss.The bougie method used less time in creating the gastric pouch,less consumable materials,and less complications occurred in creating gastric pouch.
6.Effect of polysaccharide nucleic acid fraction of bacillus Calmette-Guerin on CD4+CD25+Foxp3+ regulatory T cells in peripheral blood of patients with condyloma acuminatum
Zhenhua WANG ; Fanghong YANG ; Yi SUN ; Hui WANG ; Feng XUE
Chinese Journal of Dermatology 2014;47(9):665-666
Objective To evaluate the effect of polysaccharide nucleic acid fraction of bacillus Calmette-Guerin (BCG-PSN) on peripheral blood CD4+CD25+Foxp3+ regulatory T (Treg) cells in patients with condyloma acuminatum (CA).Methods Forty-two patients with first onset of CA were randomly assigned to receive either injection of BCG-PSN (0.35 mg every other day for 3 months) after fulguration (combination group,26 patients),or fulguration only (fulguration group,16 patients).Venous blood samples were obtained from all the patients at the initial visit and three months after the beginning of treatment,as well as from 30 healthy checkup examinees.The percentage of peripheral Treg cells in CD4+ T lymphocytes was determined by flow cytometry.The recurrence of CA was evaluated during the three months after the beginning of treatment.Results The percentage of peripheral Treg cells in CD4+ T lymphocytes was significantly higher in patients with CA than in the controls (8.31% ± 1.24% vs.5.15% ± 0.72%,P < 0.01),and in patients with clinical recurrence of CA than in those without (9.34% ± 0.72% vs.7.45% ± 0.85%,P < 0.01).The recurrence rate was significantly lower in the combination group than in the fulguration group (30.77% vs.68.75%,P < 0.05).After three months of treatment,the combination group showed lower percentage of Treg cells in CD4+ T cells compared with the fulguration group (5.87% ± 1.05% vs.6.60% ± 0.75%,P < 0.05).Conclusions The percentage of Treg cells has a close relationship with the progression of CA,i.e.,the higher the percentage,the more frequent the relapse.BCG-PSN may enhance the antiviral immune response in patients with CA and improve their prognosis by reducing the number of Treg cells.
7.Research of idiopathic short stature and estrogen receptor gene polymorphism
Yi YUAN ; Yu YANG ; Hui HUANG ; Ying WANG
Chongqing Medicine 2014;(23):2980-2982
Objective This study was to investigate the association of certain single nucleotide polymorphisms (SNPs) of the ER with genetic susceptibility to ISS .Methods Genomic DNA was extracted from peripheral blood of children with ISS (n=355) and of normal growth and development individuals as controls from Jiangxi province (n=345) .The association between the ER gene polymorphisms with the height-related clinical traits was analysed .Results The allele T of rs6557177 is significantly lower in the ISS group than in the control group(P=0 .021 ,OR=0 .624) .The clinical indexes of two kinds of different genotypes were analyzed and compared ,there was no statistical difference(P>0 .05) .Conclusion The allele T of rs6557177 of ER gene is a protection factor of ISS .C gene and T gene grouping clinical parameters (hight ,weight ,IGF-1 ,IGFBP3 ,E2 and BMI) were analyzed and found no statistically significant difference .
8.Effect of electroacupuncture and diet adjusting on insulin resistance in rats with nutrition obesity
Hui YANG ; Yi LI ; Ling CHENG ; Jinsen HE
Journal of Integrative Medicine 2007;5(5):546-9
OBJECTIVE: To study the effects of electroacupuncture and diet adjusting on insulin resistance in rats with nutrition obesity, and the role of electroacupuncture and diet adjusting in the treatment of obesity. METHODS: Obesity was induced in rats by high-fat diet. Rats with nutrition obesity were randomly divided into high-fat diet (HD) group, high-fat diet plus electroacupuncture (HA) group, normal diet (ND) group and normal diet plus electroacupuncture (NA) group, with another group of SD rats as normal control (NC). After 15 days, all the rats' body weight and length were measured, the Lee's index was calculated, and the levels of total cholesterol (TC), triglycerides (TG), free fatty acid (FFA), fasting plasma glucose (FPG), fasting insulin (FINS) and tumor necrosis factor-alpha (TNF-alpha) were detected. RESULTS: Compared with the HD group, food intake, body weight and viscera fat weight of the rats with nutrition obesity in the HA group and the NA group were markedly reduced (P<0.05). The levels of blood serum TC, FFA and IR index in the NA group were obviously lower than those in the HD group (P<0.01). The levels of TNF-alpha and FINS in the NA group were lower than those in the HD group (P<0.05). CONCLUSION: Electroacupuncture plus diet adjusting can decrease the levels of serum TNF-alpha and FINS of the obesity rats, and improve the state of insulin resistance.
9.Effects of Dexmedetomidine Combined with Remifentanil on Postoperative Cognition and Hemodynamics in Patients Underwent Colon Cancer
Hui QU ; Yi YANG ; Enxiu JI ; Yaqin WEI
China Pharmacy 2017;28(8):1101-1104
OBJECTIVE:To explore the effects and safety of dexmedetomidine combined with remifentanil on postoperative cognition and hemodynamics in patients underwent colon cancer surgery.METHODS:One hundred undergoing colon cancer sur gery in our hospital during Jun.2013-Apr.2016 were selected and divided into control group and observation group according to random number table,with 50 cases in each group.Control group was given Remifentanil hydrochloride for injection 2-4 μg/kg for anesthesia induction,with maintenance dose of 0.5-2 μg· kg/min;observation group was treated with Dexmedetomidine hydrochloride for injection 0.5 μg/kg and remifentanil 2-4 μg/kg for anesthesia induction,with maintenance dose of Dexmedetomidine hydrochloride for injection 0.4 μg·kg/h+Remifentanil hydrochloride for injection 0.5-2 μg·kg/min.MMSE score and the incidence of postoperative cognitive dysfunction (POCD) were observed in 2 groups 1,2,3 d after surgery,and the occurrence of ADR was record ed.RESULTS:The incidence of POCD in observation group 1,2,3 d after surgery were 16.0%,4.0%,6.0%,which was signifi cantly higher than 36.0%,12.0%,10.0% of control group,with statistical significance (P<0.05).There was no statistical significance in MMSE score between 2 groups 1,3 d after operation (P>0.05).2 d after surgery,MMSE score of observation group was significantly higher than that of control group,with statistical significance (P<0.05).There was no statistical significance in hemodynamic indexes,the incidence of ADR as blood pressure increasing,amyostasia,nausea and vomiting between 2 groups 1,2,3 d after surgery (P>0.05).CONCLUSIONS:Dexmedetomidine combined with remifentanil can significantly improve postoperative POCD in patients underwent colon cancer surgery and have little effect on hemodynamics with good safety.
10.Functional and morphological outcome after pyeloplasty for children with unilateral hydronephrosis
Maoxian LI ; Yi YANG ; Ying HOU ; Hui CHEN ; Zhibin NIU
Chinese Journal of Urology 2016;37(6):431-435
Objective To analyze the factors associated with the outcome of pyeloplasty in term of renal function and morphology improvement in children with unilateral ureteropelvic junction obstruction,in order to provide clinical evidence for the treatment of hydronephrosis in children.Methods Clinical data of 174 children who underwent unilateral dismembered pyeloplasty from January 2009 to June 2014 were retrospectively studied.Differential changes in renal function and renal morphology after pyeloplasty were assessed by serial renal scan and ultrasound.On the basis of preoperative split DRF,these patients were divided into three groups:group Ⅰ with DRF ≥40% (n =99),group Ⅱ with DRF 30%-40% (n =29) and group Ⅲwith DRF < 30% (n =46).According to their age at surgery,the children were divided into four groups,including group A aged 1-3 months (n =52),group B aged 3 months-3 years (n =44),groupCaged3-6years (n =37),and group D aged more than 6 years (n =41).Results Inall 174 children,postoperative complication occurred in 7 cases,including urinary tract infection in 6 cases and renal atrophy in 1 case.A significant improvement of both function and morphology was confirmed in most patients (P < 0.01).Patients in group Ⅰ showed stable renal function after operation(DRF 48.46% ±4.80% vs.50.78% ± 5.45%,P < 0.01),of them who underwent pyeloplasty at 1-3 months of age showed the best obvious recovery of renal morphology.Renal function of patients in group Ⅱ recovered obviously and most of them reached to the initial values (DRF 35.18% ± 2.95% vs.43.91% ± 6.89%,P < 0.01).While renal function of patients in group Ⅲ recovered significantly after surgery,most of them failed to restore the initial values(DRF 20.70% ± 6.90% vs.33.78% ± 12.49%,P < 0.01),and among them,the aged 1-3 months group possessed the best recovery.Moreover,the morphological improvement was similar to the functional improvement.The time for hydronephrosis recovered to less than Grade 2 of Society for Fetal Urology(SFU)was 6,24 and over 24 months respectively in group Ⅰ,Ⅱ and Ⅲll,and the renal morphology gradually improved with the increasing duration of follow-up.Conclusions The renal function and morphology of most patients improved significantly after pyeloplasty.Recovery of renal function and morphology after surgery was significantly correlated with the preoperative DRF.Early surgical intervention may improve the function and morphology recovery of the involved renal unit.