1.Lipoprotein (a) and homocysteine potentiate the risk of coronary artery disease in male subjects
Meifeng YAN ; Yunfeng XIAO ; Hongwei CUI
Chinese Journal of Postgraduates of Medicine 2013;36(31):1-4
Objective To discuss the rehtionship between lipoprotein [Lp (a)],homocysteine (Hcy) and coronary artery disease (CAD) in men.Methods Two hundred and twenty-two male patients admitted for coronary angiography were classified into CAD positive group (111 cases) and CAD negative group (111 cases).The clinical data and plasma Hcy and Lp(a) levels were recorded in both groups.Logistic regression analysis was used to analyze males CAD risk factors.Results Lp (a) ≥0.3 g/L was a risk factor for CAD (OR =5.04,95% CI 1.88-13.51,P =0.001),whereas Hcy was not related to CAD (OR =1.35,95% CI 0.63-2.89,P =0.443).However,when both factors were considered together in an interaction model,plasma high Hcy and high Lp (a) levels were risk factors for CAD (OR =11.54,95% CI 2.62-45.61,P=0.003).Conclusion Plasma Lp (a) and Hcy levels may increase the incidence of male CAD process.
2.CT and MRI Diagnosis of Ovarian Dysgerminoma
Yunfeng LU ; Zhibo XIAO ; Yang HUANG ; Rongsheng CHEN
Chinese Journal of Medical Imaging 2015;23(8):618-621
Purpose Ovarian dysgerminoma has no specific symptoms or physical signs, which is thus prone to misdiagnosis before treatment. This paper aims to investigate CT and MRI clinical features of ovarian dysgerminoma, so as to provide an accurate basis for its clinical treatment and also improve patients'' life, quality.Materials and MethodsThe CT and MRI data of 13 patients with ovarian dysgerminoma proved by pathology were retrospectively analyzed. Three patients underwent plain and enhanced CT scan, 6 took plain and enhanced MRI scan on T1WI and T2WI with different angles of views, and 4 other patients were performed both CT and MRI scan.Results①Twelve patients had single lesions, and 1 was bilateral multiple ones. The diameter of the lesions ranged from 5.5 cm to 16.5 cm, with mean of (9.5±3.8) cm; in terms of pathological type, 11 belonged to single type and 2 were mixed.②The CT results showed that 6 were solid mass and 1 was cystic. On enhanced CT scan, 6 cases showed heterogeneous light-to-moderate enhancement, 4 had tumors with significantly enhanced blood vessels, and 1 showed heterogeneous significant enhancement at arterial phase; all cases presented continuous enhancement at venous phase.③The MRI manifestations demonstrated 8 were with solid mass, which displayed iso- or slightly hypointense signal on T1WI, and iso- or slightly hyperintense signal on T2WI. The enhanced scan showed that 5 cases had heterogeneous mild enhancement, 3 had moderate enhancement, and 4 were seen with tortuous tumor vessels at arterial phase; all displayed continuous enhancement at venous phase. In the one case of cystic mass, solid component had moderate enhancement at arterial phase and continuous enhancement at venous phase. In another case of multilocular cystic mass, the tumor separate and cyst were significantly enhanced at arterial phase, and were continuous enhanced with hyperintense at venous phase.Conclusion Ovarian dysgerminoma tumors present features such as large lesions with clear boundaries. Tumors of single type are likely to be solid mass with central necrosis; the plain CT scan shows isodensity; the plain MRI scan mainly shows isodensity on T1WI, and iso- or slight hyperintensity on T2WI; the enhanced scan presents slight to moderate enhancement. Tumors of mixed type demonstrate cystic mass; the solid and separate parts are significantly enhanced. The comprehensive analysis of imaging features of ovarian neoplasms could help to make a correct diagnosis before surgery.
3.The expression and signiifcance of PRR11 protein in human pancreatic carcinoma
Jiashou TAO ; Yunfeng LI ; Xiao LUO ; Meifu CHEN
China Oncology 2015;(3):179-183
Background and purpose: Recent studies have shown that, the new gene PRR11 had abnormal expression in lung cancer, stomach cancer, speculated that it might be correlated with tumor progression. This study aimed to detect the expression of PRR11 protein in human pancreatic carcinoma, and to analyze the relationship between PRR11 protein level and the clinical pathological parameters of pancreatic carcinoma. Methods: Immunohistochemistry (SP) method was used to detect the expression of PRR11 protein in 32 cases of human pancreatic cancer tissues, 20 cases of paracancerous tissues and 6 cases of normal pancreatic tissue. Chi Square test was used to analyze the relationship between the expression levels of PRR11 protein and the clinical pathological parameters (age, gender, the size of tumor, the location of tumor, differentiation, lymph node metastasis and TNM stage). Results:The positive expression rates of PRR11 protein in pancreatic cancers, paracancerous tissues and normal pancreatic tissues were 78.1%(25/32), 5.0%(1/20) and 0.0%(0/6), respectively. The expression level of PRR11 in pancreatic cancer tissues was significantly higher than those in paracan-cerous tissues or normal tissues. The positive expression rate of PRR11 protein in pancreatic carcinoma was significantly associated with cell differentiation degree and TNM stage (P<0.05), but not associated with patient age, gender, the size of tumor, the location of tumor and lymph node metastasis (P>0.05). Survival analysis demonstrated that the survival rate in the patients with PRR11 protein positive expression was significantly lower than the patients with negative expression (P<0.05). Conclusion:PRR11 protein can be a possible prognostic indicator of pancreatic cancer.
4.Research on relationship of the procrastination and the big five personality factors in university students
Rong XIAO ; Yunfeng LUO ; Qian LIN ; Qiao CHU
Chinese Journal of Behavioral Medicine and Brain Science 2010;19(6):550-552
Objective To study the relationship of the university students' procrastination and big five personality factors.Methods 461 university students were assessed by the simple edition of tuckman procrastination scale(TPS) and the big five personality inventory short form(NEO-FFI).Results TPS score of the student was (48.51 ± 7.66).There were 89.4% students respectively had different level of procrastination behavior.There were no significant differences in university students by the gender(47.95 ±7.84 vs 48.95 ± 7.43 ) ,whether one-child students(48.64 ± 7.49 vs 48.45 ± 7.81 ) and grades.There were significant positive correlation between procrastination and the personality factor of neuroticism( r=0.235, P<0.01 ) and significant negative correlation with extraversion ( r=-0.180, P < 0.01 ) and conscientiousness ( r =-0.198, P < 0.01 ).The big five personality factors of neuroticism,extraversion and conscientiousness could explain the 14.0% variation of procrastination of university students.Conclusion Procrastination is a very common phenomenon in the university students.The students with higher neuroticism, lower extraversion and conscientiousness of big five personality have more procrastination behavior.
5.Relationship between IL-1 gene polymorphism and severity of rheumatoid arthritis and secretion of IL-1
Yunfeng PAN ; Xiao ZHANG ; Peida YIN ; Donghua HE ; Meian TANG ; Buyun YU ; Caishen LU
Chinese Journal of Pathophysiology 2000;0(10):-
AIM: To determine the influence of interleukin-1?(IL-1?) and ?(IL-1?) gene polymorphisms on rheumatoid arthritis(RA) disease severity and secretion of IL-1?. METHODS: The study included 136 RA patients and 102 healthy controls. PCR-RFLP was used to detect site mutation at IL-1 gene. Meanwhile the IL-1? was also measured in the supernatant of the cultured and stimulated peripheral blood mononuclear cells(PBMC). RESULTS: No difference in the allele frequencies or genotypes of the IL-1? gene polymorphisms was found between the controls and RA patients.IL-1? allele 2 was overrepresented in patients with erosive RA but not in nonerosive patients. The patients with IL-1? allele 2 had a higher swollen joint index, higher tender joint index and erythrocyte sedimentation rate than those without IL-1? allele 2.The IL-1? in supernatant of stimulated PBMC from patients with IL-1? allele 2 had a higher level than that from those without allele 2. CONCLUSION: IL-1 gene polymorphisms may influence the occurrence of RA. Detection of IL-1? allele 2 have a potential prognostic value in RA.
6.Gemcitabine vs.5-FU with radiotherapy for locally advanced pancreatic carcinomas
Ying XUE ; Guangjin CHAI ; Yunfeng MU ; Feng XIAO ; Yao FAN ; Mei SHI
Chinese Journal of Pancreatology 2013;13(5):311-314
Objective To evaluate the efficacy,adverse events of gemcitabine vs.5-FU with radiotherapy for locally advanced pancreatic carcinomas.Methods Between January 2007 and January 2011,a total of 56 patients with locally advanced pancreatic carcinomas was included and clinical data were retrospectively analyzed.All patients received 3-DCRT radiotherapy with individual dose of 1.8 ~ 2 Gy,5 times per week,and total dose of 45 ~ 50.4 Gy for 25 ~ 28 fractions,and received concurrent chemotherapy (5-FU or gemcitabine).The patients (n =30) in gemcitabine group were treated with gemcitabine (500 rng/m2 at the 1st,8th,15th,22nd day,at 10 mg · (m2)-1 · min-1,through micro-pump) during radiotherapy; 3 weeks after radiotherapy the patients received gemcitabine infusion at a dose of 800 mg · (m2)-1 · d-1,one time per week,for 3 or 4 cycles.The patients (n =26) in 5-FU group were treated with 5-FU (500 mg/m2 at the 1 ~ 5th day per week,IV),the cycle was repeated every 2 weeks during radiotherapy; 3 weeks later the patients received 5-FU infusion at a dose of 800 mg · (m2)-1 · d-1,the 1st ~5th day per week,the cycle was repeated every 2 weeks ; with a total of 3 or 4 cycles.The efficacy and adverse events were observed,and the patients were followed until June 2013,and the median survival,1 year and 2 year survival was calculated.Results Of the 56 patients,the overall response (CR + PR) rate was 73.2%,and it was 65.3% in radiotherapy with 5-FU group,80.0% in radiotherapy with gemcitabine group (P < 0.05).The overall one and two year survival rate was 48.2% and 14.3%,while median survival was 15.2 months,and the corresponding values were 42.3%,11.5%,13.3 months in radiotherapy with 5-FU group,and 53.3%,16.7%,16.6 months in radiotherapy with gemcitabine group,and the survival difference between the two groups was not statistically significant (P =0.071).At the end of treatment,the pain-relief rate (VAS score <4) of the 56 patients was 83.3%,it was 75.0% in 5-FU group and 90.0% in gemcitabine group.In radiotherapy with gemcitabine group,the incidence of 3~ 4 grade myelosuppression was significantly higher than that in radiotherapy with 5-FU group,and the difference between the two groups was statistically significant (20.0% vs 7.6%,P < 0.05).Conclusions For the locally advanced pancreatic carcinomas,radiotherapy with gemcitabine can improve pain-relief and prolong survival compared with radiotherapy with 5-FU,but the incidence of adverse event of myelosuppression is higher.
7.Efficacy analysis of double-“U” embedding and pursestring suture and binding pancreaticojejunostomy for the prevention of pancreatic leakage
Meifu CHEN ; Yangyun XIE ; Guoguang LI ; Yunfeng LI ; Lufeng LIANG ; Fang ZOU ; Xiao LUO
Chinese Journal of Digestive Surgery 2016;15(10):987-991
Objective To investigate the efficacy of double-“ U” embedding and pursestring suture and binding pancreaticojejunostomy for the prevention of pancreatic fistula.Methods The retrospective cohort study was adopted.The clinical data of 208 patients who underwent pancreaticojejunostomy at the Hunan Provincial People's Hospital from March 2011 to March 2015 were collected.Of 208 patients,106 patients undergoing double-“ U” embedding and pursestring suture and binding pancreaticojejunostomy were allocated into the double-“ U” group and 102 patients undergoing Child pancreaticojejunostomy were allocated into the Child group.Observation indicators included (1) surgical effects:anastomosis time,postoperative pancreatic leakage,duration of hospital stay,(2) follow-up situations.The follow-up using telephone interview and outpatient examination was performed to detect postoperative long-term complications and recovery of patients by abdominal ultrasound or computed tomography (CT) at every 6 months postoperatively up to September 2015.Measurement data with normal distribution were represented as x ± s and comparison between groups was analyzed by t test.Count data were analyzed using the chi-square test.Results (1) Surgical effects:208 patients underwent successful surgery without occurrence of death.The anastomosis time was (13.0 ± 1.5) minutes in the double-“ U” group and (20.0 ± 1.6) minutes in the Child group,with a statistically significant difference between the 2 groups (t =4.713,P < 0.05).Two patients in the double-“ U” group were complicated with grade A of pancreatic leakage,including 1 of 36 patients with normal pancreatic remnant and 1 of 70 patients with fibrotic pancreatic remnant.Nine patients in the Child group were complicated with pancreatic leakage,including 6 in grade A,1 in grade B and 2 in grade C,and there were 6 of 33 patients (4 in grade A,1 in grade B,1 in grade C) with normal pancreatic remnant and 3 of 69 patients (2 in grade A,1 in grade C) with fibrotic pancreatic remnant.There were statistically significant differences in the pancreatic leakage between the 2 groups and among the patients with normal pancreatic remnant in the 2 groups (x2 =2.951,4.994,P < 0.05).The duration of postoperative hospital stay was (13.5 ± 1.2)days in the double-“U” group and (15.7 ± 2.6)days in the Child group,with a statistically significant difference (t =1.011,P < 0.05).No readmission in the 2 groups occurred.(2) Followup situations:91 of 106 patients in the double-“U” group were followed up for 6-54 months with a median time of 30 months.During the follow-up,8 patients were dead,12 patients didn't undergo reoperation due to multiple metastases in the liver,lung and greater omentum,4 and 4 patients were respectively complicated with relapsing pancreatitis and refluxing cholangitis,and other patients had good conditions without the occurrence of diabetes,diarrhea,indigestion and hypopancreatism.Eighty-eight of 102 patients in the Child group were followed up for 6-54 months with a median time of 25 months.During the follow-up,10 patients were dead,11 patients didn't undergo reoperation due to multiple metastases in the liver,lung and greater omentum,6 and 6 patients were respectively complicated with relapsing pancreatitis and refluxing cholangitis,and other patients had good conditions without the occurrence of diabetes,diarrhea,indigestion and hypopancreatism.Conclusion Double“U” embedding and pursestring suture and binding pancreaticojejunostomy for the prevention of pancreatic fistula can reduce the suture time,incidence of pancreatic leakage and duration of postoperative hospital stay,and it is especially suitable for the patients with normal pancreatic remnant.
8.Study on experimental autoimmune encephalomyelitis with oxymatrine on rats model
Xiaoling LIU ; Wenyan LI ; Tian GAO ; Xiaobin GUO ; Yujuan DU ; Yunfeng XIAO
Chinese Journal of Biochemical Pharmaceutics 2015;(6):22-24
Objective To establish experimental autoimmune cerebral spinal cord inflammation ( EAE) model rats, and observe the pathological changes and effect of oxymatrine on EAE model.Methods 30 rats were randomly divided into control group,EAE ( model group) group and oxymatrine group.The EAE symptom score was used to evaluate the rats after the model, and to observe the changes of its behavior.By HE staining and Kluver &Barrera myelin dyeing to observe the inflammation of the brain and spinal cord demyelinating changes.Results The animals in control group had no change in behavior and pathological.In model group, all animals occured behavioral changes, accompanied by varying degrees of demyelination and inflammatory infiltration of the brain and spinal cord.In oxymatrine group,6 rats did not appear EAE clinical manifestations and behavioral change, and the myelin structure was intact.Conclusion Oxymatrine can extend the incubation period experimental autoimmune encephalomyelitis in rats of the disease, relieve symptoms and protect nerve.
9.Correlation between rheumatoid factor and activity or severity of rheumatoid arthritis
Chuyin XIAO ; Yunfeng PAN ; Jieruo GU ; Yuqiong WU ; Jianlin HUANG ; Buyun YU
Chinese Journal of Tissue Engineering Research 2008;12(46):9193-9196
BACKGROUND: Rheumatoid factor (RF) is a kind of autoantibody which is routinely used as a factor in patients with rheumatoid arthritis (RA) to evaluate disease activity and severity.But in clinical practice, it occurs frequently that RF values do not decrease according to clinical improvement in RA patients. OBJECTIVE: To investigate the association between rheumatoid factor (RF) and activity or disease severity of RA.DESIGN, TIME AND SETTING: A randomized cross-sectional study was performed in the Department of Rheumatology and Immunology, the Third Affiliated Hospital of Sun Yat-sen University during September 2006 and September 2007.PARTICIPANTS: Seventy-six patients,65 females and 11 males,mean age of (44±13) years,with RA diagnosed according to the American College of Rheumatology (ACR) criteria for RA were included in this study. METHODS: Seventy-six patients with active RA were randomly recruited and assessed for functional status,radiographic change,joint pain,morning stiffness, tender joint count (TJC), tender joint score (TJS), swollen joint count (SJC), swollen joint score (SJS), Health Assessment Questionnaire (HAQ), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP),RF,and hemoglobin. The method of Pearson correlation or Spearman rank correlation was performed for assessing the association between RF and these indices separately, normally distributed data for Pearson correlation, nonnormally distributed data for Spearman rank correlation. MAIN OUTCOME MEASURES: Correlation of RF with above mentioned factors. RESULTS: None of the correlation coefficients between RF and indices including age,disease duration, functional status,radiographic change,joint pain, morning stiffness, TJC,TJS,SJC,SJS,HAQ,ESR,CRP,hemoglobin were significant (P>0.05). CONCLUSION: No associations between RF and activity or severity of RA are studied.
10.Antidepressant effect of total flavonoids extracted from Xiaobuxin-Tang in forced swimming tests and learned helplessness in rats and mice
Youzhi ZHANG ; Nengjiang YU ; Li YUAN ; Lei AN ; Yimin ZHAO ; Wenbin XIAO ; Zhipu LUO ; Yunfeng LI
Chinese Journal of Pharmacology and Toxicology 2008;22(1):1-8
AIM Xiaobuxin-Tang (XBXT) is a traditional Chinese herbal decoction which is composed of Haematitum, Flos Inulae, Folium Phyllostachydis Henonis and Semen Sojae Preparatum. The present study was to investigate if the total flavonoids extracted from XBXT (XBXT-2) had antidepressant effect. METHODS Forced swimming tests in mice and rats, and learned helplessness (LH) model of rats were adopted to affirm the antidepressant effect of XBXT-2 with the test on spontaneous motor activity. Plasma corticosterone level in the LH rats was measured with ELISA. RESULTS Single administraton of XBXT-2 at the doses of 50 and 100 mg·kg-1 (ig) significantly decreased the duration of immobility time in the forced swimming tests in mice and rats. Researches on LH model of rats indicated that XBXT-2 at doses of 50 and 25 mg·kg-1 markedly reduced the number of escape failure in shuttle box. Meanwhile, the plasma corticosterone level of the LH rats was significantly decreased. XBXT-2 50-200 mg·kg-1 had no effects on spontaneous motor activity in mice. CONCLUSION XBXT-2 possesses significant antidepressant-like effect. The mechanism may involve the inhibition of the hyperaction of the hypothalamic-pituitary-adrenal axis.