1.Expression and prognostic role of ADP-ribosylation factor 6 in human endometrial carcinoma
Dongmei CHEN ; Yihong MA ; Zhenzhen LI
Chinese Journal of Endocrine Surgery 2016;10(4):325-328
Objective To investigate the expression and prognostic role of ADP-ribosylation factor 6 (ARF6) in human endometrial carcinoma.Methods 51 endometrial carcinoma tissues and matched tumor-adjacent tissues were collected from Jan.2010 to Dec.2011 in People's Hospital of Linzi District of Zibo City and Penglai People's Hospital.mRNA expression of ARF6 was detected by qRT-PCR,and the protein expression of ARF6 was detected by immunohistochemistry.The correlation between ARF6 and clinicopathological features was analyzed by chi-square test,and the Kaplan-Meier survival curves were drawn to describe the prognostic effects of ARF6 expression.Results Both mRNA and protein expression of ARF6 were down-regulated in endometrial carcinoma tissues than those in matched tumor-adjacent tissues (P<0.05).Positive expression of ARF6 was associated with lynphatic metastasis (P<0.05) and advanced TNM stage (Ⅲ+Ⅴ,P<0.05).Both the 3-year overall survival rate and disease-free survival rate were lower in ARF6 positive expression group than in ARF6 negative expression group(P<0.05).Conclusion Positive expression of ARF6 in human endometrial carcinoma is related to the malignant clinicopathological features and poor prognosis.
2.Effects of penehyclidine hydrochloride pretreatment on expression of NF-κB and iNOS in brain tissue in rats with LPS-induced brain injury
Zhenzhen TU ; Jin GAO ; Ping CHEN
Chinese Journal of Anesthesiology 2008;28(9):832-835
Objective To investigate the effects of penehyclidine hydrochloride (PHCD) pretreatment on expression of NF-κB and iNOS in rats with LPS-induced brain injury. Methods One hundred and five male SD rats weighing 200-220 g were randomly divided into 5 groups (n=21 each): group Ⅰ normal saline (NS);group Ⅱ LPS (L);group Ⅲ,Ⅳ,Ⅴ PHCD 0.05, 0.15, 0.45 mg/kg (D1,2,3). The animals were anesthetized with chloral hydrate 350 mg/kg. Brain injury was induced by intra-arterial LPS 150 μg administered via left internal carotid artery in group Ⅱ-Ⅴ. In group Ⅲ,Ⅳ, and Ⅴ PHCD 0.05, 0.15 and 0.45 mg/kg were given intraperitoneally (IP) at 10 min before intra-arterial LPS. The animals were decapitated at 4, 6 and 12 h after administration of PHCD (n=7 at each time point in each group). The brains were immediately removed for determination of water content, expression of NF-κB and iNOS protein and examination with light and electron microscope. Results Water content of the brain and expression of NF-κB and iNOS protein were significantly higher in group L, D1, D2 and D3 than in group NS and were significantly lower in group D2 and D3 than in group L. Intra-arterial LPS produced severe damage to the brain which was significantly attenuated by PHCD in group D2 and D3. Conclusion PHCD 0.15,0.45 mg/kg pretreatment can attenuate LPS-induced brain injury by inhibiting the up-regulation of expression of NF-κB and iNOS.
3.Diagnostic value of F wave in diabetic peripheral neuropathy
Zhenzhen WANG ; Wenming CHEN ; Zuneng LU
Journal of Clinical Neurology 1992;0(01):-
Objective To investigate the diagnostic value of F wave in diabetic peripheral neuropathy (DPN).Methods F and M wave parameters were measured in 106 patients with diabetes mellitus and 75 normal persons, including the minimum latency, duration, amplitude and area of F wave, and the amplitude and the area of M wave.Results (1) In the 30 patients with diabetes mellitus without peripheral neuropathy, there were 8 cases with prolonged the duration of F wave, 4 cases with prolonged the minimum latency of F wave, 2 cases with increased in the ratio of the area of F/M wave. (2) The minimum latency prolonged of F wave, the ratio of the amplitude of F/M wave and the ratio of the area of F/M wave significantly increased in the 76 patients with DPN, the duration of F wave prolonged in the mild DPN but no one revealed remarkable abnormal. (3) In the controls, the function of upper limit of the minimum latency of F wave (Y) and leg length (X) was Y=12.3+48.8X 2. Conclusion (1) F wave could be served as sensitive index to the early diagnosis of DPN, and might detect subclinical DPN. (2) The proximal nerve segment could be affected without the lesions of the distal nerve segment in patients with DPN, and it suggested that vascular factor plays an important role in the mechanism of DPN.
4.Diagnostic value of single fiber electromyography in diabetic peripheral neuropathy
Zhenzhen WANG ; Wenming CHEN ; Zuneng LU
Journal of Clinical Neurology 2001;0(05):-
Objective To study the diagnostic value of single fiber electromyography (SFEMG) in diabetic peripheral neuropathy (DPN).Methods The values of jitter and fiber density (FD) in 36 patients with diabetes mellitus of 2 type were determined by Viking Ⅳ, while conventional nerve conduction studies (NCS) were performed,and the fasting blood glucose and glycosylated hemoglobin A 1C (HbA 1C ) were measured.Results The values of jitter were associated with FD, and both jitter and FD were positively related to HbA 1C .18 cases with abnormal NCS showed increased jitter(11 cases with block),and increased FD in 14 cases; the remaining 18 cases with normal NCS,7 cases with increased jitter(3 cases with block),the increased FD in 5 cases.Conclusion Denervation reinnervation reflected by jitter and FD was associated with the metabolic status. SFEMG could be served as sensitive means to early diagnosis of DPN, and might detect subclinical peripheral neuropathy of diabetes.
5.CKLF1 induces SH-SY5 Y cell migration via PLCγ/FAK signaling pathway
Zhenzhen WANG ; Yuhe YUAN ; Ning HAN ; Yi ZHANG ; Naihong CHEN
Chinese Pharmacological Bulletin 2014;(9):1209-1213
Aim To investigate the role of chemokine-like factor 1 ( CKLF1 ) in SH-SY5 Y cell migration and its molecular regulatory mechanism. Methods SH-SY5Y cells were stimulated with CKLF1 for 0. 5 h, 2 h, 8 h and 24 h, respectively. The migration distance and the percentage of migration cells were recorded by CELLocate analysis. The phosphorylation of focal ad-hesion kinase ( FAK) at Tyr-397 site was detected by Western blot analysis. By chemotaxis assays, we con-firmed the chemotaxis of CKLF1. Furthermore, FAK inhibitor PF-573228 and PLCγ inhibitor U73122 were used for the research of molecular regulatory mecha-nisms involved. Results CKLF1 promoted cell migra-tion and induced a strong increase in the phosphoryla-tion level of FAK-pY397 , which were significantly at-tenuated by the presence of U73122 ( a specific inhibi-tor for PLCγ) . In addition, the chemotaxis of CKLF1 was obviously blocked by the FAK inhibitor PF-573228 . Conclusion CKLF1 induces SH-SY5 Y cell migration via PLCγ/FAK signaling pathway.
6.Impact of supine recumbency duration on the complications after lumbar puncture in children
Weiling YAN ; Zhenzhen DOU ; Tianming CHEN ; Huili HU ; Gang LIU
Chinese Journal of Applied Clinical Pediatrics 2014;29(12):914-918
Objective To evaluate the post-puncture complications in children,and to evaluate the difference in the occurrence rate of headache and backache between patients who had 1 hour of supine recumbency and those who had 4 hours of supine recumbency,to provide evidence for the standardized lumbar puncture (LP) procedure of children.Methods Inpatients who were older than 3 and had diagnostic LP in the course of their treatment between Nov.2012 and Apr.2013 were enrolled.The LP was performed by the same investigator under the standardized institutional guideline for LP and the information of number of LP attempts,duration of LP and cerebrospinal fluid (CSF) drainage volume were recorded.After the procedure,all the children were randomly assigned into 2 groups:the test group had supine recumbency for 1 hour after LP,and the control group had it for 4 hours.For the first 5 days following LP,reports of headache and backache were recorded by another physician who didn't participate in this study.The difference in the occurrence rate of headache and backache between test group and control group was assessed by the chi-square test or Fisher's probabilities in 2 × 2 table.And a Logistic regression analysis was performed to assess the risk factors for the occurrence of the headache and backache.Results The overall frequency of headache was 4.6% (4/87 cases).The frequency of headache was not significantly different between the test group (2.4%) and control group (6.7%) (P =0.617).And the overall frequency of backache was 19.5 % (17/87 cases),and it was not significantly different between the 2 groups (test group:21.4%,control group:17.8 %,P =0.668).In a Logistic regression analysis,age (P =0.011,OR:6.884,95% CI:1.398-33.906) and the previous history of lumbar puncture (P =0.018,0R:0.126,95 % CI:0.026-0.618) were significant risk factors for the occurrence of backache.The risk of backache in children with more than 2 times of LP was decreased.And the risk was higher in the children older than 6 years than those younger than 6 years.Conclusions Headache and backache were the most frequent post-puncture complications in children.There was no difference between short duration (1 hour) of supine recumbency and long duration (4 hours) in preventing the occurrence of headache and backache after LP.
7.Effects of remifentanil infused at different rates on median effective target plasma concentration of propofol inhibiting responses to laryngeal mask airway insertion in pediatric patients
Ming CHEN ; Juan YAO ; Zhenzhen WAN ; Ling YU ; Limin JIN
Chinese Journal of Anesthesiology 2013;(3):320-322
Objective To compare the effects of remifentanil infused at different rates on median effective target plasma concentration (EC50) of propofol inhibiting responses to laryngeal mask airway (LMA) insertion and determine the optimum infusion rate of remifentanil when used for fiberoptic bronchoscopy in pediatric patients.Methods Eighty-four ASA Ⅰ or Ⅱ pediatric patients,aged 7 months-3 years,scheduled for elective fiberoptic bronchoscopy,were randomly assigned into 3 groups (n =28 each):normal saline group (group C),remifentanil infused at 3 ng· kg-1 ·min-1 group (group R1) and remifentanil infused at 5 ng· kg-1 · min-1 group (group R2).Responses to LMA insertion were defined as body movement and/or bucking during insertion.The initial target plasma concentrations of propofol were 5.2,4.8 and 4.4 μg/ml in groups C,R1 and R2,respectively.The target plasma concentration of propofol was determined by up-and-down sequential allocation.Each time the target plasma concentration increased/decreased by 0.2μg/ml.EC50 and 95 % confidence interval of propofol blunting responses to LMA insertion were determined by probit method.Results EC50 (95 % confidence interval) of propofol was 5.03 (4.92-5.12) μg/ml,4.71 (4.58-4.84) μg/rnl and 4.46 (4.20-4.94) μg/ml in groups C,R1 and R2,respectively.There was no significant difference in EC50 of propofol between groups R1 and C (P > 0.05).EC50 of propofol was significantly lower in group R2 than in groups C and R1 (P < 0.05).Conclusion The infusion rate of remifentanil should not be lower than 5 ng· kg-1· min-1 when combined with propofol in pediatric patients undergoing fiberoptic bronchoscopy.
8.Influence of thoracic duct ligation on lipid metabolism after esophagectomy
Yongheng ZHANG ; Bo YANG ; Zhenzhen YUAN ; Quan CHEN
Chinese Journal of General Practitioners 2009;8(12):880-883
Objective To explore influence of thoracic duct ligation on lipid metabolism after esophagectomy. Methods Seventy-four patients with esophageal cancer received esophagectomy were divided into two groups by their thoracic duct ligation, 39 in ligation group and 35 in non-ligation group. All the patients were fed with nutrients through nasal-duodenal tube placed during operation from the 1 st day to the 8th day after surgery, and started taking liquid diet on the 6th day. Blood specimens were collected from the patients on the 1st day after admission, the 9th day, one month and three months after surgery,respectively for biochemical analysis,including determinations of total cholesterol(TC),triglyeeride(TG),high-density lipoprotein-cholesterol ( HDL-C) and low-density lipoprotein-cholesterol ( LDL-C) . Databetween the two groups were compared with statistical analysis. Results No significant difference in plasma levels of TC, TG and HDI.-C was found between the two groups at varied time points. Plasma level of LDL-C in the ligation group significantly decreased on the 9th day after surgery, as compared with that in the nonligation group ( P < 0. 05), and went down to the lowest level one month after surgery. Conclusions Chylomicron was blocked to enter blood stream and production of LDL-C decreased by thoracic duct ligation,which affect lipid absorption and metabolism leading to poor early nutrition in patients with esophagealsurgery due to slower establishment of collateral circulation.
9.Effect of compound raspberry seed powder on acute radiation injury
Zhenzhen WANG ; Haitao WANG ; Guangkai GAO ; Hao CHEN ; Bin WANG
Chinese Journal of Radiological Medicine and Protection 2017;37(1):24-28
Objective To study the protective effect of compound raspberry seed powder on acute irradiated rat .Methods Totally forty Wistar rats were randomized divided into four groups:normal control group, radiation group, vitamin group, compound raspberry seed powder group . The drugs were intragastrically administrated for 7 days.On 8th day, the rats in each group except control were irradiated with 8 Gy X-rays.24 h after irradiation, all rats were sacrificed and its WBC, PLT, superoxide dismutases (SOD), malonaldehyde (MDA), glutathione peroxidase (GSH-PX) in serum were detected, the DNA damage in peripheral blood lymphocytes ( PBL ) was measured with the single cell gel electrophoresis technique.Results Compared with radiation alone group , the quantities of WBC, PLT, the activity of SOD, the content of MDA and the activity of GSH-PX in the vitamin group and compound raspberry seed powder group were significantly improved(F=14.869, 6.376, 7.705, 3.851, 3.134, P<0.05).The DNA damage in PBL of radiation alone group was more severe than that of other three groups ( F=5.493, P<0.05) .Conclusions Raspberry seed powder is effective in radiation protection .
10.Illness Perception Level of Patients with Coronary Heart Disease
Guiru MAO ; Lizi WANG ; Zhenzhen XU ; Yanna CHEN
Chinese Journal of Rehabilitation Theory and Practice 2017;23(2):221-225
Objective To investigate the level about illness perception in patients with coronary heart disease. Methods From July to De-cember, 2015, 198 inpatients with coronary heart disease who were admitted into hospitals twice or more were enrolled. They were assessed with Illness Perception Questionnaire-Revised (IPQ-R). Results The score of common symptoms was (4.55±1.64). The symptoms, for exam-ple, chest pains, uncomfortable feeling in chest, cold sweat, flustered and breathlessness were most frequently experienced and most often identified. For the illness perception part, the scores on subscales of treatment control and consequences were higher than 3, which was the neutral point. For the cause dimension part, the highest scores was (3.38 ± 0.90) in diet or eating habits, followed by (3.38 ± 0.89) in aging. Among these factors, immune factors had the highest mean score, followed by stress factor. Conclusion The level of illness perception in pa-tients with coronary heart disease was in the middle level, and individual differences were obvious. The awareness of the disease and the in-tervention of the patient should be strengthened.