3.Expression and role of Twist and N-cadherin in pancreatic cancer
Chinese Journal of Pancreatology 2012;12(4):238-241
ObjectiveTo investigate the expression of Twist and N-cadherin in pancreatic cancer,and to study its relationship with clinicopathological parameters and patients' prognosis.Methods The expression of the Twist and N-cadherin in 62 tissue samples from patients with pancreatic ductal adencocarcinoma and 10 normal pancreatic tissue samples was determined by using immunohistochemistry MaxVision two step method,and the relationship with clinicopathological parameters and patients' prognosis was analyzed.ResultsThe positive expression rate of Twist in pancreatic cancer was higher than that of normal pancreatic tissues (96.8% vs.30%,P <0.01 ),and the positive expression rate of N-cadherin was higher than that of normal pancreatic tissues (75.8% vs.0,P <0.01),but there was no correlation between them (r =0.100,P =0.441 ).The expressions of Twist and N-cadherin was significantly correlated with TNM stage,lymph node metastasis,infiltration of portal vein or nerves and tumor location ( P <0.05 ),but not with age,gender and degree of differentiation ( P > 0.05 ).The post-operative survival of patients decreased with the increasing Twist expression,but the survival was not associated with the expression of N-cadherin.TNM stage,the expression of Twist was independent predictive factors of prognosis for pancreatic cancer patients.ConclusionsTwist and N-cadherin are highly expressed in pancreatic cancer,and the expression was associated malignant behavior of pancreatic cancer.The abnormal expression of Twist may be a potential marker for prognosis evaluation of pancreatic cancer patients.
4.Clinical comparison of cerivastatin with simvastatin for aged hyperlipidemia
Chinese Pharmaceutical Journal 2001;(4):276-277
OBJECTIVE To assess the efficacy and safety of Lipobay (cerivastatin) and Jingbishuxin (simvastatin) on lipid profiles.METHODS 40 patients with hypercholesterolemia were randomizedly divided into Lipobay group (0.3 mg,QN) and Jingbishuxin group (domestic simvastatin tablet) (20 mg,QN)for 4 weeks.Total cholesterol (TC),low density Lipoprotein cholesterol (LDL-C),triglyceride (TG) and high density lipoprotein cholesterol (HDL-C),blood sugar,hepatic and renal function,blood and urine regular test were measured before and after the treatment.RESULTS After 4 weeks of treatment,TC,LDL-C and TG were reduced by 29.02%,29.95%,17.21% in Lipobay the group and 22.48%,28.68%,14.74% in Jingbishuxin group,respectively.Compared the measurements after treatment with that before treatment,there were significant differences in both groups,but there was no significant difference between them.No serious adverse effect was found.CONCLUSION Lipobay had a same efficacy and safety on lipoprotein profiles as that of Jingbishuxin in elderly.It has a good tolerance with smaller dose.
5.Status and challenges for schistosomiasis in transmission-interrupted areas in Jiangxi Province
Chinese Journal of Schistosomiasis Control 2016;28(4):456-460
This report analyzes the status of schistosomiasis epidemic,surveillance and challenges in transmission?interrupt?ed areas of Jiangxi Province. There are 24 schistosomiasis transmission interrupted counties(cities,districts)among 39 endem?ic counties(cities,districts). Among the 24 counties,there are 6 counties with Oncomelania hupensis snails and 461 villages endemic,with 1.29 million residents. Since 2009,there have not been acute and chronic cases of schistosomiasis and all the pa?tients are historical advanced schistosomiasis cases. The area with snail habitats is 37.02 hm2. Since 2015,the schistosomiasis surveillance has covered the entire transmission interrupted areas. However,there are still many challenges,such as endemic in?stability,weak surveillance capacity,lack of surveillance awareness and other issues. Towards the schistosomiasis elimination, the surveillance should be based on the snail monitoring mainly,supplemented by the mobile population monitoring,and in ad?dition,the capacity building,standardized report of endemic,and snail habitat reform should also be further strengthened.
6.Relationship between the expression of Fas or FasL and the apoptosis of peripheral blood T and B lymphocytes in systemic lupus erythematosus patients
Chinese Journal of Rheumatology 2001;0(04):-
Objective To investigate the relationship between the expression of Fas or FasL and the apoptosis of peripheral blood T and B lymphocytes in systemic lupus erythematosus (SLE) patients. Methods The expression rates of Fas and FasL and apoptosis rates of peripheral blood T and B lymphocytes were detected by flow cytometry (FCM) in 30 active SLE patients and 30 inactive SLE patients and 30 healthy controls. Results There were significant difference in the expression rates of Fas of T and B lymphocytes among three groups (P0.05). In addition, the activity of SLE had no correlation with the expression rates of Fas or FasL on T or B lymphocytes but has positive correlation with the apoptosis rates of T or B lymphocytes. And no correlation was found between the expression rate of Fas or FasL and the apoptosis rate of neither T nor B lymphocytes. Conclusion The apoptosis of peripheral blood lymphocytes is influenced by many factors in SLE patients, but is abnormally increased at last, especially in active SLE. It is inferred that the increase of apoptosis rate of peripheral blood lymphocytes plays an important role in the pathogenesis of SLE.
7.New Type Bi-level Positive Airway Pressure(Bi-PAP) in Treating Overlap Syndrome
Zhe CHEN ; Suyan LIU ; Baoyuan CHEN
Chinese Journal of Nosocomiology 2006;0(08):-
OBJECTIVE To assess the superiority of new type bi-level positive airway pressure(Bi-PAP) in treating overlap syndrome. METHODS Sixteen cases diagnosed overlap syndrome were quickly given Bi-PAP treatment simultaneously,where their therapeutic efficacy of antibiotic,relieving spasm,diuresis and respiratory stimulant in advance was not fine.All patients were divided into new type Bi-PAP and old Bi-PAP groups based on the type of machines used. RESULTS Seven of 16 patients receiving new type Bi-PAP got remission through non-invasive mechanical ventilation.Among the other 9 patients receiving old type Bi-PAP,6 got remission through non-invasive mechanical ventilation,3 received invasive mechanical ventilation because of poor response to non-invasive mechanical ventilation. CONCLUSIONS More acute overlap syndrome patients can get remission through new type Bi-PAP without invasive mechanical ventilation and have decreased possibility of getting hospital-acquired pneumonia.
8.Chemical principles and bioactivities of blueberry.
Chiehfu CHEN ; Yadong LI ; Zhe XU
Acta Pharmaceutica Sinica 2010;45(4):422-9
The bioactive principles contained in blueberries (Vaccinium) are various kind of anthocyanins (anthocyanidins, or phenolic aglycone, conjugated with sugar), chlorogenic acid, flavonids, alpha-linolenic acid, pterostilbene, resveratrol, and vitamins. After oral administration, anthocyanins can pass through blood-brain barrier and thus appear in various organs and brain. Improve visual function by increasing rhodopsin regeneration and ocular health is the earliest reported bioactivities of anthocyanin. Recent studies demonstrated the benefit of blueberries to prevent the age-related chronic diseases such as cancer, diabeties, hyperlipidemia, hypertension, neurodegeneration, obesity, and osteoporosis through its apoptosis, antioxidant, antiinflammation, and antiangiogenesis effects. Blueberries can eradicate microorganisms for the prevention of symptomatic urinary tract infections in women. Thus, blueberries are recognized as one of the most nutritious foods and cultivated worldwide. However, how to prolong the shelving time of fresh fruit, well utilize the leaf and stem to isolate the bioactive chemicals, improve quality consistency of juicy and dry products, all should be further concerned.
9.Etiology and clinical characteristics of pregnancy-emerged thrombocytopenia
Zhe CHEN ; Meiying HANG ; Jianliu WANG
Chinese Journal of Obstetrics and Gynecology 2011;46(11):834-839
Objective To investigate the etiology and clinical characteristics of pregnancy-emerged thrombocytopenia.Methods A retrospective analysis was conducted on clinical data of 159 pregnancies with thrombocytopenia,who were admitted to Peking University People's Hospital from January 2000 to January 2010.All the patients recruited in this study had no history of blood or immune system disease before pregnancy,and thrombocytopenia was the predominate clinical manifestation during pregnancy,with platelet counts less than 100 × 109/L at least twice during pregnancy.The thrombocytopenia should not be induced by drugs,viral infections,preeclampsia or hemolysis,elevated liver enzymes,and low platelets syndrome (HELLP).All cases were followed up.The general condition,the onset time of thrombocytopenia,platelet changes,accompany symptoms,maternal and perinatal outcomes as well as follow-up conditions were compared based on the etiology.Results ( 1 ) Etiology:among the 159 cases,101 (63.5%) were diagnosed gestational thrombocytopenia (GT) ;43 ( 27.0% ) were idiopathic thrombocytopenic purpura(ITP) ;9 ( 5.7% ) were blood system diseases,including 4 cases of megaloblastic anemia( MA ),2 cases of aplastic anaemia (AA),and 3 cases of myelodysplastic syndrome(MDS).Six cases (3.8%)were diagnosed immune system diseases,including 3 cases of systemic lupus erythematosus ( SLE),2 cases of antiphospholipid syndrome (APS),and 1 case of Evans syndrome.(2)Maternal and perinatal outcomes:pregnancy induced hypertension was diagnosed in 21 cases ( 13.2% ),abnormal glucose metabolism in 13 cases ( 8.2% ),anemia in 44 cases ( 27.7% ) and preterm delivery in 18 cases ( 11.3% ).Twenty-nine cases ( 18.2% ) were treated with corticosteroids or gamma globulin during pregnancy.The average gestational week was 38 weeks.Fifty-five cases ( 34.6% ) underwent vaginal delivery,104 cases ( 65.4% ) received cesarean section.Postpartum hemorrhage was observed in 34 cases (21.4%),and puerperal infection happened in 2 eases ( 1.3% ).No maternal death was found.In a total of 160 fetuses (including twins),there were 157 live births.Three cases of fetal death and 2 cases of early neonatal deaths were observed.Fetal growth restriction was observed in 4 cases,and neonatal thrombocytopenia was seen in 6 cases.No intracranial hemorrhage was detected.(3)The onset time of thrombocytopenia:among the 159 cases,29 cases ( 18.2% ),67 cases (42.1% ),63 cases (43.6%) of thrombocytopenia were detected in the first,second and third trimester,respectively.There was a significant difference of the onset time of thrombocytopenia between GT and ITP groups( P < 0.05 ).Patients with GT tended to have a later onset of thrombocytopenia,which mainly happened in the second and third trimester,while patients with ITP tended to happen in the first and second trimester.(4)The degree of thrombocytopenia:the cases with the minimum platelets level of (51 - 100) × 109/L,(31 - 50) × 109/L,( 10 - 30) × 109/L,< 10 × 109/L during pregnancy were 75 (47.2% ),39 (24.5% ),31 ( 19.5% ),14( 8.8% ) respectively.There was a significant difference between GT and ITP groups in the lowest platelets level (P < 0.01 ).(5)Thrombocytopenia accompany with anemia:among the 159 cases,there were 44 cases (27.7% ) accompanied with anemia.The proportion was 9.9% ( 10/101 ) in GT group,58.1% (25/43) in ITP group,with significant difference(P <0.01 ).Anemia was also found in 5 cases in blood system disease group (5/9),and 1 case in immune system disease group (Evans syndrome,1/6).Pancytopenia was observed in 2 cases with ITP (4.7%,2/43 ) and 3 cases with blood system disease ( AA:1 cases,MA:2 cases,3/9).(6) The recovery of the platelets counts postpartum:the postpartum follow-up periods were 7 months to 10 years.Patients recovered within 1 week,6 weeks,6 months postpartum were 66 cases ( 41.5% ),43 cases ( 27.0% ),17 cases ( 10.7% ) respectively.The platelets counts did not recover within 6 months postpartum in 33 cases(45.7% ).Conclusions GT is the leading cause of pregnancy-emerged thrombocytopenia followed by ITP.There are significant differences between GT and ITP in the onset time of thrombocytopenia,the lowest platelets level,the proportion of anemia accompanied and the postpartum recovery.Other etiologies including immune and blood system diseases are rare.The relevant examinations should be taken for etiology and differential diagnosis.
10.Perinatal outcomes of pregnancies complicated with varying degrees of thrombocytopenia
Zhe CHEN ; Meiying LIANG ; Jianliu WANG
Chinese Journal of Perinatal Medicine 2011;14(5):267-272
Objective To investigate the perinatal outcomes of pregnancies complicated with varying degrees of thrombocytopenia.Methods Clinical data of 305 pregnant women with thrombocytopenia,who admitted to Peking University People's Hospital from January 1,2000 to January 31,2010 were retrospectively analyzed.The etiological diagnosis of them were gestational thrombocytopenia (GT),idiopathic thrombocytopenic purpura (ITP) or undetermined.The patients were divided into 4 groups according to the minimal level of platelets in pregnancy ( platelets count was lower than 100 ×109/L at least twice) : groupⅠ,(50-100) ×109/L (n=101) ; group Ⅱ,(30-50) × 109/L (n = 85); group Ⅲ,(10-30) × 109/L (n = 87); group Ⅳ,< 10 × 109/L (n = 32).Demographic data such as pregnancy complications,treatment,neonates and follow-up results of the patients in each group were compared with ANOVA,Spearman rank correlation analysis,Chirsquare test and Chi-square trend test in SPSS 17.0.Results Medical complications in pregnancy of these patients included hypertensive disorder complicating (n = 35,11.48%) and abnormal glucose metabolism (n=23,7.54%),no difference was found in the incidence of these diseases among the four groups.There were 68 patients complicated with anemia (22.30%),40 preterm delivery (13.11%),60 postpartum hemorrhage (19.67%); there were significant differences in the incidence among the four groups (P<0.05),the incidence increased with the aggravation of thrombocytopenia (P<0.05).There were 2 cases of puerperal infection (0.66%),no maternal deaths.Fifty-one patients (16.72%) accepted treatment of corticosteroids or Gamma globulin during pregnancy.There were 116 cases (38.03%) of vaginal delivery and 189 cases (61.97%) of cesarean section.The postpartum bleeding amount within 24 hours increased with the aggravation of thrombocytopenia.Two hundred and eleven (69.18%) patients were followed up and platelet count regained normal,among which 152 cases recovered within six months after delivery.The recovery rates were 90.59% (77/85),82.36% (42/51),46.16% (24/52) and 39.13% (9/23) from group Ⅰ to group Ⅳ,as declined with the aggravation of thrombocytopenia in pregnancy ( x2trend = 42.616,Ptrend =0.000).Among the 306 perinatal fetuses,neonatal outcomes included 301 live births,5 fetal deaths,4 early neonatal deaths,4 low birth-weight infants after term birth,1 intracranial hemorrhage and 18 (5.98%) neonatal thrombocytopenia cases.Incidence of neonatal thrombocytopenia increased with the aggravation of maternal thrombocytopenia.Sixteen cases of neonatal thrombocytopenia recovered at 3-8 weeks after birth,but two cases did not recover within three years during followed up.Conclusions The perinatal outcomes are different in pregnancies complicated with varying degrees of thrombocytopenia.As thrombocytopenia in pregnancy become worse,the risk of anemia,premature delivery,postpartum hemorrhage and neonatal thrombocytopenia increases.While,perinatal outcomes may be better under close perinatal care.