Lymphocytic variant hypereosinophilic syndrome is a rare disease and the abnormal clonality of lymphocytes plays an important role in the pathogenesis and development of lymphocytic variant hypereosinophilic syndrome. The recent progress of lymphocytic variant hypereosinophilic syndrome were reviewed in this article.

BACKGROUND: Relapse of acute leukemia is possibly correlated with abnormal expression of cellular adhesion molecule-1 (VCAM-1).OBJECTIVE: To observe the level of VCAM-1 in serum and bone marrow stromal cell (MSC) supernatant of patients with relapsed acute leukemia. METHODS: Samples of serum and MSC supernatant were collected from 17 patients with remission-phase and relapse-phase acute leukemia hospitalized in the Department of Hematology, the Fifth Affiliated Hospital of Sun Yat-sen University between June 2006 and March 2008. The levels of VCAM-1 were measured with ELISA in remission and relapse phases.RESULTS AND CONCLUSION: Compared with the remission phase, the VCAM-1 level of serum was significantly increased in the relapse phase (P < 0.05). At 1 and 3 weeks after in vitro culture, the VCAM-1 level in the MSC supernatant was not changed (P > 0.05), but it was significantly increased on the fourth week (P < 0.05). The results demonstrated that VCAM-1 expression of serum and MSC supernatant in the relapse phase was greater than that in the remission phase, suggesting that abnormal expression of VCAM-1 was possibly correlated with relapse of acute leukemia.

Objective To improve the establishment of severe acute pancreatitis model in rat. Methods 36 Sprague-Dawley rats were randomly divided into experiment or shame operation group(n=18,each). Severe acute pancreatitis was induced by injection of 4% sodium taurocholate through puncturing common bile duct with a fine needle, puncture hole was closed by medical sealant glue. Ascites volume and blood amylase were measured at 3, 6 and 12 hours after injection. Gross and histological changes of pancreas were evaluated by a scoring system. Results Pancreatic changes in the experiment group was hemorrhagic and necrosis.The ascites volume(8.52±1.05)ml,serum amylase activity(5247.17±547.07)u/L, gross and histological scores(13.6±3.92) in experiment group was significantly higher than ascites volume(1.21±0.32)ml,serum amylase activity(1289.5±176.67)u/L, gross and histological scores((0.83±0.58) in shame operation group at every time point(P<0.05). Conclusions Combined injection through common bile duct and medical sealant glue in the experiment can minimize the trauma and simplize the procedure. This method produces a reliable model with high success rate and it is an ideal severe acute pancreatitis animal model.

Objective To explore the effects of glutamine (Gln) on tumor necrosis factor-alpha (TNF-α),interleukin-6(IL-6),and interleukin-10 (IL-10) in rats with severe acute pancreatitis (SAP).Methods 54 Sprague-Dawley rats were randomly divided into 3 groups ( n =18 for each group):Gln treatment group ( Gln),SAP model group (SAP),and negative control group (NC).SAP was induced by injection of 4％ sodium taurocholate through common bile duct with a fine needle and the puncture hole in the bile duct was closed by medical sealant glue.Sham operation was performed in the rats of NC group.Rats in Gln group received Gln injection and rats in SAP group and NC group received normal saline instead of Gln.Ascites volume and blood amylase were measured at 3,6 and 12 hours after injection and plasma cytokines were detected by enzyme-linked immunosorbent assay (ELISA).Gross and histological changes of pancreas were evaluated by a scoring system.Results The ascites volume,serum amylase level,gross and histological scores,TNF-α level,and IL-6 level were significantly higher in SAP group than in NC group at each time point(P＜0.05).IL-10 level was significantly higher in SAP group than in NC group at 3 hour point(P＜0.05).The ascites volume,serum amylase level,and gross and histological scores were significantly lower in Gln group than in SAP group at the time point of 3 hour and 6 hour after injection( P ＜ 0.05 ).Level of TNF-α and IL-6 was significantly lower in Gln group than in SAP group at each time point( P ＜0.05 ).IL-10 level was lower in Gln group than in SAP group at 3 hour point( P ＜0.05 ).Conclusion Gln is effective in SAP treatment by decreasing the serum level of proinflammatory cytokine and ameliorating the pathological damage of pancreatic tissues in rats.

Objective:To study the changes of rice protein and its limiting amino acids in storage and provide theoretical basis for utilizing and improving its nutritive value. Methods:During rice aging , the kinetic properties of Lys and Trp were studied. Results:The changes of Lys conformed to kinetics first-class reaction, lnk=ln(2.05?107)-6929.3/T and Ea(activation energy)=57.61 kJ/mol, while those of Trp conformed to first-class reaction, lnk=ln(1.18?05)-5426.9/T and Ea=45.12 kJ/mol. Conclusion:Both Lys and Trp contents decreased significantly in storage, Trp worse than Lys. The nutritive value of rice protein then decreased.

Objective To evaluate the minimally invasive techniques and myocardial protective results of open heart surgery in beating heart.Methods 138 patients underwent minimally invasive open heart surgery in beating heart under cardiopulmonary bypass (CPB) with light hypothermia,of which 58 cases underwent right anterolateral thoracotomy,35 cases had lower sternotomy and full length sternotomy was performed in 45 cases.Among 138 cases,97 cases had repairment of atrial and ventricular septal defects,8 atrioventricularis communis,18 other congenital heart disease,two left atrial myxomas,one mitral valvuloplasty and 12 mitral value replacement.Results There were no severe arrhythmia and air embolism,but only one operative death because of low cardiac output.Other patients were discharged and had no late deaths.Conclusion Minimally invasive open heart operation in beating heart is a feasible,safe and effective technique for most of the cardiac surgery.Advantages of a right anterolateral thoracotomy or lower hemisternotomy in beating heart are obvious,including a smaller incision,less injury and blood loss,quick recovery,maintenance of the integrity of the bony cage and excellent myocardial protection.It is consistent with the idea of minimally invasive surgery.

For promoting the quality evaluation of Gardenia resource,a UPLC method for the determination of 4 compounds (geniposidic acid,geniposide,crocin-1 and crocin-2) in Gardeniae Fructus was established.The UPLC separation was performed on an Waters Acquity UPLC BEH-C18 (2.1 mm× 100 mm,1.7 μm) column eluted with the mobile phases of acetonitrile-0.1％ formic acid solution in a gradient mode at a flow rate of 0.3 mL· min-1.The detection wavelengths were 240 nm and 440 nm,respectively.Under the optimum conditions,the calibration curves of four analysis were linear in the range of 0.0065-0.0096 μg· mL-1,with correlation coefficients more than 0.9995.The limits of detection (LODs) of four analysis were in the range of 0.0386-0.1875 μg· mL-1.As the results of determination of 4 compounds of 12 batches of Gardeniae Fructus showed,there was great differences between the contents of the 4 compounds,the contents of geniposide were 2.44％-6.96％,while the contents of crocin-1 were 1.26％-3.04％.In addition,fingerprints of 12 batches of Gardenia resources were built using ChemPattern software,and analysis and exploration over the detection results of several samples were carried out using multivariate statistical method (similarity analysis,principal component analysis and cluster analysis).The present study provided a reference to value the importance of this method in the quality evaluation and quality control of Gardeniae resources and slices.

Objective To investigate the protective effect of resveratrol on ultraviolet A (UVA)-irradiated human fibroblasts and its mechanism.Methods Fibroblasts were isolated from normal human foreskin and subjected to primary culture and four passages of subculture.Then,some fibroblasts were incubated with various concentrations (0.01,0.1,0.5 and 1.0 mmol/L) of resveratrol for 6,24,48 and 72 hours separately,followed by methyl thiazolyl tetrazolium (MTT) assay for the evaluation of cell proliferation.Some fibroblasts were classified into four groups:blank control group remaining untreated,UVA group irradiated with UVA only,0.01 and 0.1 mmol/L resveratrol groups receiving UVA irradiation immediately followed by treatment with resveratrol of 0.01 and 0.1 mmol/L respectively.The dose of UVA irradiation was consistently 10 J/cm2 in these groups.After additional culture for 6,24,48 and 72 hours,MTT assay was conducted to evaluate cell proliferation,enzyme-linked immunosorbent assay (ELISA) to measure the levels of interleukin (IL)-1α,IL-1β,and IL-6 in the culture supernatant.Results Resveratrol at 0.5 and 1.0 mmol/L significantly inhibited the proliferation of fibroblasts,with the strongest inhibitory effect observed at 72 hours when the cell survival rate was 31.99％ ± 8.29％ and 21.15％ ± 5.76％,respectively.After irradiation with UVA of 10 J/cm2,the survival rate of fibroblasts was 78.01％ ± 12.74％ at 6 hours and 80.64％ ± 36.12％ at 72 hours,compared to 100.04％ ± 10.78％ and 99.95％ ± 12.23％ in the blank control group respectively (both P ＜ 0.05); the supernatant levels of IL-1α,IL-1β and IL-6 were significantly increased compared with the blank control group at 6 hours ((58.39 ± 0.67) vs.(48.51 ± 6.20) ng/L,(1294.37 ± 92.51) vs.(1023.25 ± 86.40) pg/L,(197.81 ± 6.37) vs.(160.45 ± 7.19) ng/L,all P ＜ 0.05),and the increase still existed at 72 hours for IL-1β ((1236.76 ± 56.49) vs.(1045.55 ± 48.14) pg/L,P＜ 0.05) and IL-6 ((215.65 ± 3.78) vs.(195.09 ± 1.78) ng/L,P ＜ 0.05).Compared with the UVA group,the 0.01 mmol/L resveratrol group showed significantly higher survival rates at all the four time points (all P ＜ 0.05),but lower supernatant levels of IL-1α at 6,24 and 48 ((43.89 ± 3.60) vs.(51.77 ± 1.77) ng/L,P＜ 0.05) hours as well as IL-lβ and IL-6 at all the four time points (all P ＜ 0.05),while the 0.1 mmol/L resveratrol group experienced no significant changes in cell survival rate at any of the time points,with a significant decrease only in the supernatant level of IL-6 at 6 and 24 ((182.90 ± 6.67) vs.(240.62 ± 1.42) ng/L,P ＜ 0.05) hours.In detail,the survival rate of fibroblasts was 91.93％ ± 12.90％,with the supernatant level being (1110.12 ± 51.91) pg/L for IL-1β and (201.94 ± 4.71) ng/L for IL-6 at 72 hours in the 0.01 mmol/L resveratrol group,compared to 80.64％ ± 36.12％,(1236.76 ± 56.49) pg/L and (215.65 ± 3.78) ng/L respectively in the UVA group (all P＜ 0.05).Conclusion Resveratrol at 0.01 mmol/L has a protective effect on UVA-irradiated fibroblasts,likely by inhibiting the secretion of IL-1α,IL-1β and IL-6.

Objective To investigate the efficacy of uterine artery chemoembolization in the treatment of locally advanced cervical cancer.Methods A total of 268 patients with locally advanced cervical cancer were treated with uterine artery chemoembolization in our department.The stage distribution among the patients included 132 stage Ⅰ B2,85 stage Ⅱ A1 and 51 stage Ⅱ A2.There were 223 patients of squamous cell carcinoma,24 patients of adenocarcinoma,9 patients of adenosquamous carcinoma,small cell carcinoma of the 7 patients,5 patients of neuroendocrine carcinoma.Transcatheter uterine artery infusion of paclitaxel and nedaplatin,gelatin sponge particles was applied for uterine artery embolization.The clinicopathological parameters were analyzed,and their impacts on tumor response were investigated.RECIST criteria were used to evaluate the response in solid tumors.Student t test was used to compare cervical tumor diameter before and after treatment,and Chi-square test was used for comparison of categorical data.Follow up examinations included pelvic ultrasound,gynecology,vaginal stump cell smears.Results Of the 268 patients,74 (27.6％) patients showed a complete response,160 (59.7％) patients had a partial response to uterine artery chemoembolization,and the overall response rate was 87.3％.A total of 258 (96.3 ％) patients underwent surgery,and pathological complete response were identified in 46 (17.2％).Forty (14.9％) patients were found to have lymph node metastasis after surgery.Response rates of stage Ⅰ B2 and Ⅱ A cases were 94.7％ and 80.1％,respectively,P ＜ 0.05.Patients with squamous cell carcinoma showed a better response rate than patents with other pathological types (94.2％ vs.53.3％),P ＜ 0.05.Initial tumor volume and cycles of preoperative uterine artery chemoembolization had no effect onthe response rate.Conclusions Uterine artery chemoembolization can increase the rate of surgical resectionof patients with locally advanced cervical cancer and can improve the reaction rate with tolerable side effect.It is an applicable option of treatment for patients with locally advanced cervical cancer in the neoadjuvanttreatment.

Objective To explore the success rate and failure risk factors of biliary stenting on the patients with type Ⅰor Ⅱ duodenal malignant stricture treated by self-expandable metallic stent (SEMS). Methods A total of 36 patients with unresectable duodenal stricture after endoscopic SEMS placement be-tween February 2010 and February 2014 at Xijing Digestive Disease Hospital were enrolled.These patients underwent ERCP biliary metal stenting subsequently due to the malignant biliary stenosis.The clinical and imaging features of these patients were retrospectively analyzed.Results ERCP biliary stenting was suc-cessfully completed in 66.7% of patients with previous duodenal SEMS treatment.The success rates of pa-tients with type Ⅰ and Ⅱ duodenal stricture were 88.0% and 18.2% respectively(P <0.001).The suc-cess rates of patients with different lengths of duodenal stenosis were 88.9% for <3.5 cm and 44.4% for ≥3.5 cm (P =0.005).Compared with 80 or 90 mm duodenal stent,patients with 60 mm stent had a higher completion rate for ERCP biliary stent (88.0% VS 18.2%,P <0.001).Multivariate logistic regression a-nalysis revealed that length of duodenal stenosis ≥3.5 cm and 80 or 90 mm duodenal stent were independent factors for failure of ERCP in patients with previous SEMS placement.Conclusion For unresectable DMS patients with SEMS placement,subsequently ERCP biliary metal stenting is safe and effective.The length of duodenal malignant stenosis and longer duodenal stent are high-risk factors for the failure of ERCP biliary stenting.