1.Effects of bitter almond on interstitial cells of Cajal in old rats with slow-transit constipation
Liyu XU ; Xujiao CHEN ; Xinyu CHEN
Chinese Journal of Geriatrics 2017;36(9):1005-1009
Objective To study effects of bitter almond on interstitial cells of Cajal (ICC) in old rats with slow-transit constipation (STC) and analyze mechanism of the gut purge of bitter almond.Methods Forty-five old SD rats were randomly divided into blank control group,model control group,bitter almond-treated group randomly (n=15,each).Compound phenanthroline was used to build the model of STC model.The bitter almond-treated group was given with bitter almond apozem,the other two groups were given with the same amount of saline.After 10 days,the carbon powder propulsion rates in the intestine were measured and specimens were taken.The ICC changes in terms of the number and distribution were observed by immunohistochemical method.The protein and mRNA expressions of c-kit in ICC were measured by Western blot and reverse transcription-polymerase chain reaction(RT-PCR).Results Compared with blank control group [(68.6 ± 6.0) %,the carbon powder propulsion rates in the intestine in model control group[(47.7±± 1.7)%]were declined (P< 0.01).The areas of c-kit positive cell in colon were declined[(638.0 ± 23.5) μm2 vs.(723.7 ± 30.8)μm2]in model vs.blank control (P<0.05).The mRNA expression of c-kit gene in ICC was declined [(0.3±0.1) vs.(1.0±0.1)] (P<0.05),the expression of c-kit protein in ICC were declined[(0.2±0.2) vs.(0.5±0.2)] (P<0.05).Compared with model control group[(47.7± 1.7)%],the carbon powder propulsion rates in the intestine in bitter almond group were increased[(63.4± 3.3)% vs.] (P <0.01).The mRNA expression of c-kit gene in ICC were increased in bitter almond group (0.9 ±0.2) vs model control group[[(0.3±0.1)] (P< 0.01).The expression of c-kit protein in ICC were increased in bitter almond group[(0.5±0.3) vs.in model control 0.2±0.2)] (P<0.01).Conclusions The bitter almond can promote the expression of c-kit mRNA and protein in colonic tissue of old STC rat interstitial and repair a fraction of ICC of STC rat interstitial,which promote intestinal peristalsis in slow-transit constipation rats.
2.Efficacy of prostaglandin E1 as adjuvant therapy for mild to moderate acute pancreatitis
Bai JI ; Liyu CHEN ; Yahui LIU
Journal of Clinical Hepatology 2016;32(1):123-126
Objective ToobservetheclinicaleffectandefficacyofprostaglandinE1(PGE1),thedrugformicrocirculationimprovement, inthetreatmentofacutepancreatitis(AP).Methods Atotalof80patientswithmild-to-moderateAPwhowerehospitalizedandtreated in Second Department of Hepatobiliary and Pancreatic Surgery of the First Hospital of Jilin University from May 2014 to January 2015 were enrolled and randomized into two groups.Forty-four patients in control group received the conventional comprehensive therapy for AP,and 36 patients in experiment group received PGE1 in addition to the conventional therapy.The time to disappearance of abdominal symptoms and the time for serum and urine levels of amylase and serum levels of lipase,C-reactive protein (CRP),and procalcitonin (PCT)to re-turn to normal were compared between the two groups.The independent-samples t-test was applied for comparison of continuous data be-tween the two groups,and the chi-square test or Fisher′s exact test was applied for comparison of categorical data between the two groups. Results ThetwogroupshadsignificantdifferencesinthetimeforserumlevelsofamylaseandCRPandpercentageofneutrophilstoreturn to normal and hospital costs (P=0.041,0.030,0.012,and 0.026,respectively).PGE1 quickly relieved abdominal pain and distention, reducedtheserumlevelofamylase,shortenedthelengthofhospitalstay,andreducedhospitalcosts.Conclusion PGE1hasgoodclinical effect and safety in the treatment of AP,and can be applied as an adjuvant drug in the comprehensive therapy for AP.
3.Efficacy of vidarabine monophosphate and ribavirin on the treatment of hand-foot-mouth disease
Guibao XIAO ; Ping FENG ; Liyu CHEN
Chinese Journal of Infection Control 2017;16(3):263-266
Objective To compare the efficacy of vidarabine monophosphate and ribavirin for treating hand-foot-mouth disease (HFMD) in children.Methods 120 children with HFMD and admitted to a hospital from April 2013 to April 2015 were randomly divided into observation group and control group,60 cases in each group,observation group treated with vidarabine monophosphate,control group treated with ribavirin,the therapeutic efficacy between two groups were compared.Results After treatment,the negative conversion rate of intestinal virus EV and EV71,as well as Coxsackie virus A16(CA16) in observation group were 87.0%,85.7%,and 93.1% respectively,in control group were 64.0%,69.8%,and 78.6% respectively,difference between two groups was statistically significant (all P<0.05).The average length of hospital stay in observation group was shorter than control group ([4.5 ± 1.3] days vs [6.2 ± 1.2] days,P<0).05),symptom(fever,stomatitis,skin rash) control time in observation group were all shorter than control group(all P<0.05).Whether patients with or without complication,therapeutic effect of the observation group was better than that of control group;myocardial enzyme data,C reactive protein (CRP),and white blood cell(WBC) in observation group were all lower than control group(all P<0.05).Conclusion Efficacy of vidarabine monophosphate for treating children with HFMD is better than ribavirin,but it needs further study.
4.Expression of HOXB9 Gene in Hela Cells,Mocoy Cells, SP2/0 Cells and U251 Cells
Gan DAI ; Liyu CHEN ; Yanhui LUO
Journal of Chinese Physician 2001;0(04):-
Objective To study the expression of HOXB9 gene in Hela cells,Mocoy cells, SP2/0 cells and U251 cells. Methods The expression of HOXB9 gene was detected by semi-quantitative RT-PCR method. Results Hela cell and U251 cell expressed HOXB9 gene, which SP2/0 cell and Mocoy cell didn't express it. Conclusion The expression of HOXB9 gene was different in different cells.
5.Expression of Hox Genes in Murine Brain by Human Cytomegalovirus Infection
Ni XIE ; Liyu CHEN ; Minhua LUO
Journal of Tropical Medicine 2007;7(5):408-411,417
Objective To study the effect of of human cytomegalovirus (HCMV) infection on the expressions of Hox genes.Methods Forty eight kunming mice were randomly divided into infection group (n=32) injected with HCMVAD169 and control group (n=16) injected with saline into their brain.After 7,15,30,and 60 days,the cerebral lesions were observed by pathological method.HCMV antigen was detected by immunohistochemical method and HCMV DNA was detected by polymerase chain reaction (PCR). On the basis of developing HCMV mouse model. reverse trancriptase-polymerase chain reaction (RT-PCR) was applied to determine the expressions of Hox gene in the brains of infected mice.The expression of Hox genes were also analysed with Northern-blot by isotope labelled Hox genes oligonucleotide probes. Results A HCMV infection model was developed and extensive pathological damages in brain tissue of infected mice were observed.Meanwhile.the HCMV-LA and HCMV-DNA were also found in brain tissues of HCMV infected mice.The expression level of Hox genes in control and infected mouse brain were determined by RT-PCR and Northern-blot.RT-PCR and Northern-blot showed that mouse brain expressed Hox-A9,Hox-A10,Hox-A11,Hox-A12,and Hox-A13,but they did not express Hox-B13.After HCMV infection,murine brain was induced to express Hox-B13 gene(P<0.01),and reached the peak at 30 d after infection.Comparing with the control group,the expression of Hox-A9 and Hox-A11 were down-regulated in infected group (P<0.05);the expression of Hox-A10 and Hox-A13 were significantly higher in infected groups (P<0.05).Conclusion The results suggest that HCMVAD169 is able to cause mouse CNS infection and induced the abnormal expressions of Hox genes. which provides more information for understanding the mechanism of congenital abnormal due to HCMV infection and a valuable method of clinical prevention and treatment of HCMV infection.
6.Investigation about Knowledge of Stroke in Patients with First Stroke
Yiqiang CAI ; Saizhen WU ; Liyu CHEN
Chinese Journal of Rehabilitation Theory and Practice 2010;16(9):822-824
ObjectiveTo investigate the knowledge of stroke in patients with first stroke. Methods259 patients with first stroke were investigated with questionnaire. ResultsMost patients knew that hypertension was a risk factor of stroke, early treatment of stroke was important and hemiplegia was the frequent early symptom of stroke. They lacked other knowledge of stroke such as other risk factors, standards of hypertension, and so on. ConclusionIt is important to improve the knowledge of stroke in patients.
7.Expression and clinical significance of p63 in nodular lymphocyte predominance Hodgkin lymphoma and classical Hodgkin lymphoma
Xin CHEN ; Xingan YE ; Zhizhong CHEN ; Chen WANG ; Liyu CAO
Chinese Journal of Clinical and Experimental Pathology 2015;(1):52-54
Purpose To investigate the expression and clinical significance of p63 in nodular lymphocyte predominant Hodgkin lym-phoma (NLPHL) and classical Hodgkin lymphoma (CHL). Methods 15 cases of NLPHL and 54 cases of CHL were stained for CD45, CD30, p63, PAX5, CD20, CD15, Oct-2, BOB1, MUM1, EMA, EBV-LMP1 and Ki-67 by immunohistochemical methods of EliVision. EBER were detected by in situ hybridization method in 12 cases of CHL. Results The expression of p63 in NLPHL (53. 3%, 8/15) was significantly higher than that in CHL (0, 0/54) (P<0. 05). Conclusions p63 protein is frequently expressed in NLPHL and helpful in the differential diagnosis between NLPHL and CHL.
8.Correlation of clinicopathological features and prognosis in patients with colorectal cribriform comedo-type adenocarcinoma
Lihua ZHANG ; Xiaoyan CHEN ; Chen WANG ; Shunhua CHEN ; Liyu CAO
Chinese Journal of Clinical and Experimental Pathology 2015;(7):776-779
Purpose To investigate the clinicopathological features and prognosis in patients with colorectal cribriform comedo-type ad-enocarcinoma. Methods Compared with 278 cases of colorectal common-type adenocarcinoma, 24 cases of colorectal cribriform come-do-type adenocarcinoma were analyzed for clinical stage, lymphovascular invasion, lymph node metastasis and genetic characteristics. Results The percentage of clinical Ⅲ and Ⅳ (87. 5%) and lymph node metastasis rate (87. 5%) in patients with colorectal cribri-form comedo-type adenocarcinoma was obviously higher than that in colorectal common-type adenocarcinoma (42. 4%,42. 4%) (P<0. 05). The percentage of lymphovascular invasion (87. 5%) of colorectal cribriform comedo-type adenocarcinoma were significantly higher than that of common-type adenocarcinoma (22. 7%) (P<0. 05). There were no statistical significance of age, sex, and molec-ular genetics of KRAS and mutated BRAF mutation between two groups ( P>0. 05 ) . Conclusions There is a higher clinical stage and poorer prognosis including unique morphological characteristics, highly lymphovascular invasion and lymph node metastasis in pa-tients with colorectal cribriform comedo-type adenocarcinoma.
9.The expression of FZD7 and IL-6 in primary hepatocellular carcinoma and the impact on the prognosis
Ke CHEN ; Bo CHEN ; Liyu CAO ; Maoming XIONG
Chinese Journal of General Surgery 2017;32(3):251-254
Objective To investigate the expression of FZD7 (frizzled homolog protein7,FZD7) and IL-6 (interleukin-6,IL-6) in primary hepatocellular carcinoma(HCC) and the impact on the prognosis.Methods Immunohistochemistry(IHC) was used to detect the expression level of FZD7 and IL-6 in 68 HCC tissues,30 para-carcinoma tissues and 10 healthy controls from patients with hepatic hemangioma.Patients were followed-up for survival analysis.Results The expression ratio of FZD7 in HCC tissue,paracarcinoma tissue and healthy controls were 72%,53% and 0 (P < 0.001),the ratio of IL-6 expression was respectively 69%,57% and 0 (P <0.001).The expressions of FZD7 were positively correlated with that of AFP level (x2 =7.059,P =0.035),pathology classification (x2 =4.732,P =0.043),and the infection of HBs (x2 =3.508,P =0.032).The overall survival (65 % vs.84%,x2 =5.525,P < 0.05) and the disease free survival (33% vs.75%,x2 =5.991,P <0.05) of HCC patients with co-positive was significantly lower than that with co-negative expression of FZD7 and IL-6.Conclusion FZD7 and IL-6 play a critical role in development and progression of HCC.
10.The value of multipoint and multidirectional ultrasound-guided fine-needle aspiration cytology in preoperative diagnosis of papillary thyroid microcarcinoma
Lingyan ZHOU ; Dong XU ; Chen YANG ; Liyu CHEN ; Xinyan JIN
Journal of Endocrine Surgery 2015;9(1):17-19
Objective To investigate the value of multipoint and multidirectional ultrasound-guided fineneedle aspiration cytology (US-FNAC) in preoperative diagnosis of papillary thyroid microcarcinoma (PTMC).Methods From Jan.2012 to Jan.2013,multipoint and multidirectional US-FNAC were performed in 177 patients with 233 nodules suspected as PTMC,and the cytopathological findings were compared with surgical pathological results and clinical follow-up results.Results Of the 233 biopsies,the cytology were classified as malignant for 146 lesions,suspicious for malignancy for 43 lesions,benign for 24 lesions,follicular lesions for 4 lesions and inadequate sample for 16 lesions.After the second multipoint and multidirectional US-FNAC,only 1 case did not have sufficient cells for diagnosis,and the puncture failure rate was 0.43%.Actually there were 189 malignant and 44 benign lesions confirmed by clinical follow-up and pathological results.The sensitivity,specificity,and accuracy of multipoint and multidirectional US-FNAC was 99.5%,81.8% and 96.1% respectively.Conclusions Multipoint and multidirectional US-FNAC has definite value in increasing puncture qualified rate and positive diagnosis rate before operation.