1.Progress of circulating RNA in liquid biopsy of cervical cancer
Haixia LUO ; Wei WANG ; Min HAO
Chinese Journal of Laboratory Medicine 2021;44(4):352-357
Cervical cancer poses a major threat to public health worldwide, early diagnosis of cervical cancer can improve the survival rate of patients. The detection rate of the existing cervical cancer screening methods is not very stable, and there is no reliable non-invasive index to predict the recurrence, metastasis and prognosis of cervical cancer. We searched literaruture for cervical cancer-related diagnostic and prognostic indicators and included 20 related literature, confirming that liquid biopsy is expected to replace and supplement the existing methods of screening and testing. Circulating nucleotides are an important part of liquid bioassays, including circulating cell-free DNA (cfDNA) and circulating cell-free RNA (cfRNA), among which cfRNA is a potentially rich source of tumor biomarkers, especially in the early diagnosis of cervical cancer. It has unique specificity and great potential value in the early diagnosis.
2.Relationship between injury and alcohol use in 531 patients in the emergency room
Xiaojun XIANG ; Tao LUO ; Xuyi WANG ; Wei HAO
Journal of Central South University(Medical Sciences) 2014;(7):723-726
Objective:To determine the relationship between injury risk and alcohol drinking. Methods:Totally 531 patients (age≥18 years) who were treated for the ifrst time and came to the emergency room within 6 h atfer the injury were included. hTe American National Institute of Health questionnaire was used to investigate the trauma type, intentional injury, drinking before the injury, drinking volume, and drinking history in the past years and so on. hTe case-crossover method was used to analyze the data and relationship between alcohol drinking and injury.Results:Compared with the non-drinkers, subjects who drank alcohol 6 h before the injury had a higher risk of intentional injury (OR=2.79, 95%CI: 1.61–4.84). Male, drunken, patients with positive alcohol test results were more likely to suffer from intentional injury. Compared with the non-drinkers, victims who drank alcohol 6 h before injury had a higher risk of injury in traffc accidents (OR=2.41, 95%CI: 1.29–4.51). Compared with the non-drinkers, subjects who drank alcohol 6 h before injury had a higher risk of injury (OR=11.86, 95%CI: 5.48–25.65). Subjects who drank more than 6 standard drinks of alcohol 6 h before injury had much higher risks than non-drinkers (OR=24.52, 95%CI: 5.84–102.86). Conclusion:Alcohol drinking before injury is associated with increased the risk of trauma, intentional injury and injury related to traffc accidents.
3.Studies on expression and activity of membrane in peripheral in blood cells in patients with acute coronary syndrome.
Wei-bin CAO ; Hai-yan LUO ; Xiao-hong HAO
Chinese Journal of Hematology 2013;34(3):264-266
Acute Coronary Syndrome
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blood
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Aged
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Cell Membrane
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metabolism
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Female
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Humans
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Male
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Middle Aged
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Thromboplastin
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metabolism
4.The effect of focal cerebral ischemic preconditioning on brain edema and the expression of NF-?B and its target gene MMP-9 in rats
Yuman HAO ; Zuming LUO ; Li GAO ; Zhong ZHANG ; Wei CENG
Chinese Journal of Geriatrics 2001;0(03):-
Objective To investigate the effect of focal cerebral ischemic preconditioning (IPC) on brain edema and the expression of nuclear factor-?B( NF-?B) and its target gene MMP-9. Methods Forty-five SD rats were divided into 3 groups in which control group received sham surgery only, and the other two groups received 2 hours of middle cerebral artery occlusion (MCAO) followed by 22 hours of reperfusion with or without 10 minutes of IPC 3 days before. Brain water content, expression of NF-?B and MMP-9 mRNA were evaluated in each group by wet-dry weight method, immunohistochemistry staining and RT-PCR. Results Compared with the SS group, there was a lower NF-?B immunoreactivity and MMP-9 mRNA level (16 098.2?1 265.3 vs 23 565.8?1 978.4,50.7% vs 84.1%, P
5.Determination of dissolution of liuwei dihuang concentrated pills based on multi-index components.
Yun LUO ; Wei-Wei HAO ; Jing ZHANG ; Xin-Li LIANG ; Guo-Wei ZHAO ; Ming YANG ; Zheng-Gen LIAO
China Journal of Chinese Materia Medica 2014;39(2):240-246
With the content of gallic acid, loganin, paeoniflorin and paeonol as the indexes, to screen out dissolution determination conditions, establish the dissolution determination method for multi-index components in Liuwei Dihuang concentrated pills, calculate and map the accumulative dissolution curve, and then compare the dissolution of products from different pharmaceutical factories through the similarity factor (f2). According to the results, the optimum dissolution determination conditions were the paddle method, with 250 mL 0.1 mol x L(-1) hydrochloric acid as the dissolution medium, and a rotation rate of 100 r x min(-1). The similarity factor values (f2) of the dissolution curves of the four main components of Liuwei Dihuang concentrated pills from different pharmaceutical factories were mostly less than 50. This demonstrated a significant difference in the dissolution of Liuwei Dihuang concentrated pills from different pharmaceutical factories, and provided scientific basis for improving the equality evaluation of Liuwei Dihuang concentrated pills.
Drugs, Chinese Herbal
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chemistry
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Humans
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Organic Chemicals
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analysis
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Quality Control
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Solvents
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chemistry
6.Value of endorectal ultrasonography with coupling gel intrarectal filling in T stage of rectal cancer
Yong WANG ; Yuzhi HAO ; Liming JIANG ; Meihua JIN ; Wei LUO ; Zhixiang ZHOU ; Chunwu ZHOU
Chinese Journal of Medical Imaging Technology 2009;25(12):2159-2161
Objective To evaluate the role of endorectal ultrasonography with coupling gel intrarectal filling in preoperative T stage of rectal cancer. Methods One hundred and fifteen patients with rectal cancer underwent endorectal ultrasonography with coupling gel intrarectal filling. The preoperative T stage according to ultrasonic manifestations was compared with histological findings. Results The total diagnostic accordance rate of preoperative T stage by endorectal ultrasonography with coupling gel intrarectal filling was 89.57%. The sensitivity of ultrasonography for T1, T2, T3 and T4 was 93.10%, 61.11%, 96.61%, 88.89%, while the specificity was 97.67%, 96.91%, 89.29%, 99.06%, respectively. The overstaging rate of ultrasonography was 6.96% (8/115), and the understaging rate was 3.48% (4/115). Conclusion Endorectal ultrasonography with coupling gel intrarectal filling is a valuable diagnostic method for T stage of rectal cancer.
7.The effect of targeting miRNA interfering with Bmi-1 expression on human gallbladder cancer cell proliferation
Dong WEI ; Hao ZOU ; Lin WANG ; Xuesong WU ; Zhiling LUO ; Tao WANG ; Xiaowen ZHANG
The Journal of Practical Medicine 2014;(5):697-702
Objective Via targeted inhibition of oncogene Bmi-1 expression by RNAi interfering technology in vitro, to observe its effect on the proliferation and cell cycle of gallbladder cancer cells. Methods Four miRNABmi-1 recombinant plasmids were constructed according to different Bmi-1 sites. RT-PCR and Western blot were used to mRNA and protein expression of Bmi-1 in gallbladder cancer cells were measured by RT-PCR and Western blot. mRNA and protein expression of Bmi-1 in gallbladder cancer cells. The most effective interfering plasmids in the miRNABmi-1 groups were transfected into GBC-SD cells. Cell proliferation and cell cycle were analyzed 48 h after transfection by BrdU and flow cytometry. Results Bmi-1mRNA expression in miRNAbmi1-1,-3 and-4 was significantly lower than the control group (P<0.05);and Bmi-1 protein expression in miRNAbmi1-2,-3 and-4 was significantly lower than the control group (P<0.05). The recombinant plasmid in miRNAbmi1-4, with the strongest inhibitive effect of Bmi-1mRNA and protein expression, was transfected into GBC-SD cells,then the cell proliferation rate (46.63 ± 5.31) was significantly lower in mRNABmi1-4 group than the control groups (P<0.05);G0/G1 phase cells increased (72.20 ± 1.71) and G2/M and S phase cells decreased (18.30 ± 7.21, 9.50 ± 6.01) in miRNABmi1-4 group. Both were significantly different from the control groups (P<0.05). Conclusions Targeting and silencing Bmi-1 expression can effectively inhibit the proliferation of GBC-SD cells and restrain the cell cycle atin G0/G1 phase. Bmi-1 gene may be a novel target for geneic therapy of gallbladder carcinoma.
8.The study of cognitive function and synaptic plasticity in depressed rats following electroconvulsive shock
Ping LI ; Xuechao HAO ; Feng LV ; Ke WEI ; Jie LUO ; Jun CAO ; Jun DONG ; Su MIN
Chinese Journal of Nervous and Mental Diseases 2014;(12):715-720
Objective To investigate the role of autophagy and synaptophysin (SYP) in cognitive impairment in de?pressed rats receiving electroconvulsive shock (ECS). Methods Clean and healthy adult male Sprague-Dawley rats were acclimatized to a standard laboratory environment for 7 days. The chronic unpredictable mild stress (CUMS) was used to establish the rat model of depression. Behavior tests were conducted before and after CUMS to evaluate the depression and cognition level of rats. After establishment of the model, 24 rats were randomly divided into ESC group (group E) and depression group (group D) with 12 rats in each group. The rats in group E were administered 80 mg/kg of propofol (10 mg/mL) by intraperitoneal injection, followed by ECS treatment. The rats in group D were administered propofol by intra?peritoneal injection, followed by sham-ECS treatments. The above interventions were conducted daily for 7 consecutive days. After the interventions, rats underwent behavior tests as before. Subsequently, rats were killed and specimens were collected for measurements. Immunohistochemistry was performed to examine autophagy markers such as Beclin 1 and LC3Ⅱand ELISA was used to detect SYP in the hippocampus. Results Group E after ECS significantly increased the percentage of sucrose preference (68.2%±8.7%), rearing times (7.0±1.9), total horizontal distance [(569.5±70.0) cm], es? cape latency [(21.9±5.3)s] and space exploration time [(20.5±3.9)s] compared with group D or group E before ECS. There was no significant difference in these index between groups before ECS or in group E between before and after ECS(P>0.05). Compared with group D, group E had upregulated protein expression levels of Beclin 1 and LC3Ⅱin CA1, CA3, DG as well as the area near the hippocampus and increased SYP contents (P<0.05). Conclusions Cognitive impairment in depression rats following ECS correlates with activated autophagy and increased SYP by ECS.
9.Clinical application of 18F-FDG PET/CT on tumor staging and tumor thrombus grading of renal cell carcinoma
Wei GUO ; Bing HAO ; Haojun CHEN ; Long ZHAO ; Zuoming LUO ; Hua WU ; Long SUN
Chinese Journal of Nuclear Medicine and Molecular Imaging 2016;36(4):310-314
Objective To investigate the value of 18F-FDG PET/CT in the phasing and grading of renal cell carcinoma (RCC) complicated with vena cava tumor thrombus (VCTT).Methods From December 2011 to September 2015,a total of 72 patients (52 males,20 females,age:36-74 years) were enrolled in this retrospectively study.All patients underwent 18F-FDG PET/CT and contrast-enhanced CT studies,and were diagnosed as RCC.The RCC patients combined with VCTT were classified by Mayo-level.Wilcoxon rank sum test was used to compare the grading of VCTT by PET/CT and contrast-enhanced CT.NM staging on abdominal area level was performed and the results were compared with x2 test.Results VCTT was identified in 18 RCC patients and the grading results by PET/CT were as follows:9 cases in Level 0,4 cases in Level Ⅰ,2 cases in Level Ⅱ,1 case in Level Ⅲ,and 2 cases in Level Ⅳ.When evaluated by PET/CT,20 cases were in N0M0,21 were in N1M0,9 were in N0M1,and 22 were in N1M1.NM staging results by contrast-enhanced CT were as follows:50 cases in N0M0,10 in N1M0,10 in N0M1,and 2 in N1M1.In addition,2 N1 and 2 M1 were found by the whole body PET/CT.The classification results of VCTT and staging of abdominal level by PET/CT were significantly better than those by contrast-enhanced CT (z=-2.462,P<0.05;x2=32.806,P<0.01).Conclusion 18F-FDG PET/CT is not only valuable for detecting primary RCC and local metastasis,but also useful for finding where the VCTT extends,which is conducive to therapeutic planning and further clinical treatment.
10.Clinicopathological characteristics and prognostic factors analysis of combined hepatocellular-cholangiocarcinoma
Dipeng OU ; Lianyue YANG ; Zhijun ZENG ; Gengqiu LUO ; Hao YANG ; Wei WU
Chinese Journal of Digestive Surgery 2017;16(1):59-64
Objective To analyze the clinicopathological characteristics and prognostic factors of combined hepatocellular-cholangiocarcinoma (cHCC-CC).Methods The retrospective cohort study was conducted.The clinicopathological data of 72 patients with primary hepatocellular carcinoma (HCC) who were admitted to the Xiangya Hospital of Central South University between January 2005 and December 2014 were collected.Thirty-two patients who were diagnosed with cHCC-CC by postoperative pathological examination were allocated into the cHCC-CC group and 40 patients who were diagnosed with HCC by postoperative pathological examination were allocated into the HCC group.Observation indicators:(1) clinicopathological characteristics:male,age > 60 years,positive hepatitis B surface antigen (HBsAg),positive alpha-fetoprotein (AFP),positive CA19-9,positive carcinoembryonic antigen (CEA),liver cirrhosis,Child-Pugh grade A,tumor diameter > 5 cm,tumor with capsule,solitary tumor,portal vein tumor thrombus (PVTT),cancer thrombus of the bile duct,positive lymph node metastasis,stage Ⅰ-Ⅱ of TNM stage,Edmondson-Steiner stage Ⅰ-Ⅱ;(2) pathological features of surgical incision specimens;(3) follow-up situations:median survival time,1-,3-,5-year survival rates and tumor-free survival rate;(4) prognostic factors analysis of patients with cHCC-CC:AFP,CA19-9,liver cirrhosis,tumor diameter,tumor capsule,number of tumor,PVTT,cancer thrombus of the bile duct,lymph node metastasis,Edmondson-Steiner stage,volume of intraoperative blood loss,intraoperative blood transfusion,distant from surgical margin.Follow-up using outpatient examination and telephone interview was performed to detect survival of patients and tumor recurrence or metastasis up to October 2015.Comparison of count data was analyzed using the chi-square test.The survival curve was drawn by the Kaplan-Meier method,and the survival analysis was done using the Log-rank test.The prognostic analysis was done using the COX regression model.Results (1) Clinicopathological characteristics:positive CA19-9,tumor with capsule,cancer thrombus of the bile duct and positive lymph node metastasis were detected in 16,4,12,6 patients in the cHCC-CC group and 5,17,1,1 patients in the HCC group,respectively,with statistically significant differences between the 2 groups (x2=10.471,9.723,13.005,4.009,P < 0.05).(2) Pathological features of surgical incision specimens:pathological results showed that surgical incision specimens in the cHCC-CC group had characteristics of HCC tissues and cholangiocarcinoma tissues.The antigenic activity of hepatic cells in paraffin sections,Cytokeratin 7,Cytokeratin 19 and progenitor cell markers were positive by immunohistochemical staining detection.Patients in the HCC group had characteristics of HCC tissues,with positive AFP using immunohistochemical staining detection.(3) Follow-up situations:all the 72 patients were followed up for 5.0-74.0 months with a median time of 41.0 months.The median survival time,1-,3-,5-year survival rates,1-,3-,5-year tumor-free survival rates were 14.5 months,62.3%,38.9%,19.1%,50.0%,23.9%,4.0% in the cHCC-CC group and 46.8 months,82.3%,57.4%,38.6%,72.9%,35.6%,17.6% in the HCC group,respectively,with statistically significant differences in overall survival and tumor-free survival between the 2 groups (x2=4.231,3.881,P < 0.05).(4) Prognostic factors analysis of patients with cHCC-CC:results of univariate analysis showed that CA19-9,tumor capsule,number of tumor,cancer thrombus of the bile duct,lymph node metastasis and Edmondson-Steiner stage were related factors affecting prognosis of patients with cHCC-CC [HR =1.824,0.227,0.441,1.421,1.887,2.745,95% confidence interval (CI):1.126-2.172,0.118-0.654,0.318-0.764,1.071-4.231,1.017-5.643,1.223-6.421,P < 0.05].Results of multivariate analysis showed that lymph node metastasis and stage Ⅲ-Ⅳ of Edmondson-Steiner stage were independent risk factors affecting prognosis of patients with cHCC-CC (RR =1.658,2.912,95% CI:1.027-7.542,1.143-6.582,P <0.05).Conclusions The positive CA19-9,tumor without capsule,cancer thrombus of the bile duct and positive lymph node metastasis can partly predict cHCC-CC.The prognosis of patients with cHCC-CC is worse than that with HCC.The positive lymph node metastasis and stage Ⅲ-Ⅳof Edmondson-Steiner stage are independent risk factors affecting prognosis of patients with cHCC-CC.