1.Application of fluorescent probes in the diagnosis and treatment of melanoma
Chenyu WANG ; Hairui LI ; Xiaojun WANG
Chinese Journal of Dermatology 2021;54(1):60-63
Melanoma is a highly aggressive malignant skin tumor characterized by rapid growth and early metastasis. Surgical resection is currently still the main treatment. There are still some challenges in the early diagnosis and thorough surgical resection of melanoma, which affect the prognosis of patients. To date, great progress has been made in the application of fluorescent probes to the diagnosis and surgical resection of, as well as sentinel lymph node localization and resection in melanoma. Fluorescent probes have advantages of good chemical stability, less adverse effects, high specificity, high accuracy and visualization, and may provid new ideas for the diagnosis and treatment of melanoma.
2.Qualitative study of life events how to influence emotional state of heart transplantation patients
Chenyu YE ; Hao CHEN ; Yulin WANG
Chinese Journal of Organ Transplantation 2012;33(8):491-494
ObjectiveTo explore the influence of life events on the emotional state ot heart transplantation patients.Methods All the heart transplantation outpatients were interviewed by a certain psychiatrist in Zhongshan Hospital during Oct.2010 to Oct.2011.The demographic data,life events and the self-reported influenced degree were recorded by the same psychiatrist.A grounded theory-based approach with thematic content analysis of the field notes was used.ResultsEighty-eight patients were enrolled,including 69 males,and19 females.The average age of the patients was 46.5 ±14.3 years old.The average duration after operation was 39.3 ± 39.6 months.The life events were classified into 4 groups,which were medical financial problems,physical condition,family support and future life.The most frequently reported event was physical condition (50.2% ) and the influenced degree was the highest (9.2 ±1.2),while most patients (96.6%) complained high medical and relevant cost and the influenced degree was (6.5 ± 2.1). Family support was reported by13.6% patients and its influenced degree was (7.6 ±1.2).The age of the reporter of future life (6.8%) was under 33 years.ConclusionDifferent events have different influence to patients.Improving the social support of patients is helpful to improve quality of life.
3.Risk Factors,Prevention and Therapy of Hepatic Artery Thrombosis after Liver Transplantation
Chenyu WANG ; Lianxin LIU ; Hongchi JIANG
Chinese Journal of Bases and Clinics in General Surgery 2003;0(05):-
Objective To investigate the risk factors,prevention and therapy of hepatic artery thrombosis after liver transplantation.Methods The literatures on the risk factors,prevention and therapy of hepatic artery thrombosis after liver transplantation in recent years were collected and reviewed.Results The risk factors include factor Ⅴ Leiden,metabolic liver diseases of recipients,recipient sex,the use of Roux-en-Y biliary reconstructions,virus infection and so on.The measures of prevention and therapy include early diagnosis,detection of activated protein C resistance,postoperative anti-coagulation therapy,liver arteries reconstructions measures,hyperbaric oxygen therapy,continuous transcatheter arterial thrombolysis,liver retransplantation and so on.Conclusion The study of risk factors,prevention and therapy will promote the process of improving the prognosis of patients with liver transplantation.
4.Screening of Proteins Binding to HBsAg from Human Pancreas cDNA Library by Yeast Two-hybrid System
Xiaochun WANG ; Jinqian ZHANG ; Chenyu ZHANG
Journal of Environment and Health 1992;0(05):-
Objective To screen proteins in pancreas cDNA library interacting with HBsAg protein.Methods After being amplified and identified,the human pancreas cDNA library plasmid was transformed into yeast Y187.Thereafter,the bait plasmid(PGBKT7-HBsAg) was transformed into yeast cells AH109.Then,two different transformed yeast cells were mated.The diploid yeast cells were plated on synthetic dropout nutrient medium(SD/-Trp/-Leu/-His/-Ade) and that medium contained X-?-gal for selection two times.After plasmids of true positive blue colonies were extracted and transformed to E.coli,the results were analyzed by DNA sequencing and blast searching in GenBank database.Results Six proteins binding to HBsAg were screened,including aconitase(ACO1),CDK5RAP3,carboxypeptidase,etc.Conclusion Most of these proteins play significant roles in the evolution of 2 type diabetes mellitus,which may supply some new clues for exploring the pathogenesis of abnormality of lipid metabolism and tglycometabolism in the patients with chronic hepatitis virus infection.
5.Aerobic exercise relieves oxidative stress, inflammation and apoptosis due to colitis
Chenyu WANG ; Guan KOU ; Zhikun WANG ; Peng PENG ; Baicuan LIU
Chinese Journal of Physical Medicine and Rehabilitation 2021;43(4):301-305
Objective:To explore the effect of regular aerobic exercise on oxidative stress, inflammatory reaction and apoptosis with a rat model of colitis.Methods:Forty-five C57BL/6 mice were randomly divided into a control group, a model group and a model exercise group, each of 15. Colitis was induced in the rats of the model and model exercise groups through administration of 3.5% sodium dextran sulfate. The control group and the model group were kept quiet in their cages, while the model exercise group performed voluntary wheel running for 8 weeks after the successful modelling. Any histopathological changes in the colon tissue were observed after hematoxylin and eosin staining. Oxidative stress, inflammatory reaction and apoptosis were measured from colon tissue homogenates.Results:Compared with the control group, the average expression of the tumor necrosis factor α (TNF-α), interleukin (IL)-1β, IL-6 and prostaglandin E2 (PGE2) as well as levels of reactive oxygen species (ROS), malondialdehyde (MDA) and nitric oxide (NO) and inducible nitric oxide synthase (iNOS) and Caspase-3 activity and the protein expression of cyclooxygenase 2 (COX2), nuclear factor kappa B (NF-κB) p65, apoptosis inducing factor (AIF), cytochrome c (Cyt C) and Bax had all increased significantly in the other two groups, while the levels of IL-10 and glutathione (GSH), the activity of superoxide dismutase (SOD) and glutathione peroxidase (GPx) and the protein expression of Bcl-2 protein had decreased significantly in the model group. Compared with the model group, the average content of TNF-α, IL-1 β, IL-6, PGE2, ROS, MDA and NO, the activity of iNOS and Caspase-3 and the protein expression of COX2, NF-κB p65, AIF, CytC and Bax had decreased significantly, while that of IL-10 and GSH, the activity of SOD and GPx and the protein expression of Bcl-2 protein had increased significantly in the model exercise group.Conclusion:Regular aerobic exercise has a protective effect against colitis through improving oxidative stress, inflammation and apoptosis, at least in rats.
6.The expression and significance of serum ghrelin, leptin, IGF-1, and IGFBP3 in children with idiopathic short stature
Ping WANG ; Jianbo JIANG ; Shan DU ; Chenyu WANG ; Ningchuan SHI
Chinese Journal of Endocrine Surgery 2016;10(2):163-165
Objective To examine the expressions of serum growth hormone (ghrelin), leptin (LP), in sulin-like growth factor-1 (IGF-1) and insulin-like growth factor binding protein-3 (IGFBP3) in children with id-iopathic short stature (ISS), and their significance. Methods A total of 40 patients with ISS were selected from May. 2012 to Oct. 2014 in Fuyang Maternal and Child Health Hospital, while a total of 40 children in good health were selected as the control group. Serum ghrelin and LP levels were measured by ELISA. Serum IGF-1 and IGF-BP3 levels were detected by chemiluminescence immune assay. Results were analyzed statistically. Results The height, weight, BMI, GH, serum LP, IGF-1, and IGFBP3 levels in the observation group were significantly lower than those in the control group, while serum ghrelin expression level was significantly higher than that in the control group(P<0.05). The correlation analysis showed that ghrelin and LP were negatively correlated(r=-0.611, P<0.01), ghrelin and IGF-1 levels were negatively correlated(r=-0.520, P<0.05), Ghrelin and IGFBP3 were pos-itively correlated (r=0.586, P<0.01), IGF-1 and IGFBP3 was negatively correlated (r=-0.576, P<0.01), and LP and IGFBP3 were negatively correlated (r=-0.609, P<0.01). Conclusions It shows that ghrelin, LP, IGF-1, and IGFBP3 levels in children with ISS are related to growth hormone secretion status. The interactions between ghre-lin and insulin-like growth factor axis regulate growth and development of children.
7.The depression and anxiety state of heart transplantation patients
Chenyu YE ; Yi LIN ; Yulin WANG ; Hao CHEN
Chinese Journal of Organ Transplantation 2012;33(1):41-43
ObjectiveTo investigate the depression and anxiety state of heart transplantation patients. MethodsFifty-weight heart transplantation outpatients were assessed by Hamilton Depression Rating Scale (HAMD) and Hamilton Anxiety Rating Scale (HAMA) in Zhongshan Hospital during October 2010 to April 2011.Those diagnosed with depression disorder should meet the criteria of depression in Chinese Classification of Mental Disorder-3nd version (CCMD-3) and the score of HAMD≥14,and those diagnosed with anxiety disorder should meet the criteria of anxiety disorder CCMD-3 and the score of HAMA≥ 14.The diagnoses of concurrent depression and anxiety were made.Results The prevalence of depression disorder and anxiety disorder was respectively 15.5% (9/58) and 22.5% (13/58).The prevalence of depression disorder and anxiety disorder within 12 months was respectively 16.7% (2/12) and 33.3% (4/12).The score of HAMD was positively related to HAMA score (P<0.01 ).ConclusionThe prevalence of depression disorder and anxiety disorder is very high and the co-existence of depression and anxiety is very common.
8.Expression of vWF and integrin?_3 in H460 cells and association between the two factors and tumor metastasis
Li ZHANG ; Wei LIU ; Aijun YANG ; Chenyu WANG ; Min LI
China Oncology 1998;0(04):-
Background and purpose:The impact of the two factors of von Willnbrang factor(vWF) and integrin?3 on tumor metastasis has not been recognized. This study was done to investigate the expression of vWF and integrin?3 in human lung cancer cell line H460,the association between the two factors and tumor metastasis effect of vWF and integrin?3 on adhesion of human lung cancer cell line H460. Methods:The expression of vWF and integrin ?3 protein was examined by immunohistochemical staining. The impact of vWF and integrin?3 on adherent effect of tumor cells was evaluated by adhesion experiment, antibody inhibiting experiment and MTT.Results:Positive expression of vWF and integrin?3 was detected in H460 human lung cancer cells. H460 human lung cancer cells were able to adhere to vWF. Using anti-integrin?3, we observed that the ability of cell adhesion to vWF was inhibited,and A Value decreased from 1.59?0.06 to 0.55?0.03(P=0.01619). Using anti-vWF, we observed cell adhesion to vWF was inhibited too and A Value decreased from 1.60?0.06 to 0.54?0.03(P=0.01598),which had the same effect when using anti-integrin?3.Conclusions:H460 human lung cancer cells are capable of producing vWF, and vWF expression contributes to metastasis by adhering to cancer cells, integrin?3 is the vWF receptor on H460 human lung cancer cells.
9.Effects of high- and moderate-intensity continuous training on the abdominal visceral fat of obese female college students
Tao XIAO ; Pengqi FAN ; Jie ZHEN ; Peng PENG ; Chenyu WANG
Chinese Journal of Physical Medicine and Rehabilitation 2021;43(2):147-151
Objective:To compare the effect of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on the abdominal visceral fat of obese women.Methods:Sixty-eight obese female college students were randomly divided into an HIIT group ( n=23), an MICT group ( n=22) and a control group ( n=23). The control group was not given any training intervention. The MICT group performed continuous exercise at an intensity of 60% of each person′s maximum oxygen uptake (VO 2max) until 300kJ of work had been performed. Those in the HIIT group performed repeated 4-minute bouts of cycling at 90% of their VO 2max with 3-minute intervals until 300kJ of work had been performed. The interventions lasted 12 weeks. The subjects′ visceral fat (AVFA) and abdominal subcutaneous fat (ASFA) were measured using computed tomography. Whole-body fat mass (FM) and FM in the android, gynoid and trunk regions were detected using dual energy X-ray absorptiometry before and 48 hours after the final session. Results:After the intervention, the average AVFA, ASFA, percentage of fat mass (FM%), whole-body FM, and FM in the abdominal, gluteo-femoral and trunk regions of the HIIT group and MICT group were significantly lower than before the intervention, but there was no significant difference between them. No significant differences were observed in any of the control group′s indexes.Conclusions:Both HIIT and MICT can reduce the abdominal visceral fat of obese female college students, and the effects of the two exercise modes are equivalent.
10.Expression of ErbB3 in pancreatic cancer cell line regulated by microRNA-148a
Hui FENG ; Weiyan YAO ; Xi CHEN ; Chenyu ZHANG ; Yalei WANG
Chinese Journal of Digestion 2013;(6):399-402
Objective To look for and confirm the downstream regulated gene of microRNA (miRNA)-148a in pancreatic cancer cell line.Methods The target gene regulated by miRNA-148a was predicted through bio-informatics analysis.The plasmid containing desired gene and with luciferase 3'-untranslated region (3'-UTR) reporter was constructed.Pancreatic cancer cells BXPC-3 were transfected with analogs and inhibitors of miRNA-148a by liposomes.The activity of luciferase was measured to determine whether miRNA-148a directly connected with desired gene.The expression level of miRNA-148a was changed in BXPC-3 cells,and the changes of target gene v-verb-b2 erythroblastic leukemia viral oncogene homolog 3 (awian) (ErbB3) expression were detected by Western blot at protein level.The data were analyzed by one way ANOVA.Results There was a conservative binding site of ErbB3 with miRNA-148a detected by bio-informatics analysis,miRNA-148a directly combined with ErbB3 and the activity of luciferase decreased to (25.00+47.00) % of the negative control (F=4.66,P< 0.01).After miRNA-148a overexpression,the gray value of ErbB3 expression in BXPC-3 cells decreased to (26.16±4.69)% of control group (F=6.563,P<0.05).Conclusion miRNA-148a directly targeted and regulated the expression of ErbB3 in pancreatic cancer cell line BXPC-3.