1.Research on classification method of burn scar hypertrophy by using support vector machine
Chinese Medical Equipment Journal 1989;0(02):-
This paper introduces a new method which can judge the degree of burn scar hypertrophy by analyzing chroma of the burn scar. Its technical schedule is as follows: Firstly, the image of the burn scar is captured by using a digital camera. Then the chroma emendation is performed by using an Artificial Neural Network(ANN). At last, the chroma of burn scar is analyzed and the classification of burn scar hypertrophy is given by using a Support Vector Machine(SVM). Compared with clinical evaluation, the result deduced from this method is proved to be effective.
3.Correlation between Expression of MMP-9, TIMP-1 and VEGF and the Invasion of Non Small Cell Lung Cancer
Journal of Kunming Medical University 2016;37(10):67-70
Objective To investigate the relationship between metalloproteinase-9-9 (Matrix),inhibitor-1-1 (MMP-9),metalloproteinase TIMP-1 factor (Matrix) and endothelial growth (VEGF),and to investigate the correlation between the expression of (matrix) and vascular endothelial growth factor (endothelial) and vascular endothelial growth factor (vascular).Methods Sixty-eight cases of non small cell lung cancer patients treated in fengning manchu autonomous county hospital from January to January 2014 were analyzed retrospectively,and the expression level of TIMP-1,VEGF and MMP-9 were analyzed by immunohistochemical method.Results The positive rates of MMP-9 (75%),TIMP-1 (19.12%) and VEGF (13.24%) were significantly higher than those in normal tissues (P<0.05),MMP-9 (60.87%),VEGF (54.55%),TIMP-1 (65.22%) and VEGF (76.09%,59.09%,63.64%).The positive rates ofTIMP-1,VEGF and MMP-9 were higher than those without lymph node metastasis (P <0.05) Conclusion MMP-9,TIMP-1 and VEGF expression levels can predict the invasion and metastasis of non small cell lung cancer,and the three kinds of substances can promote the development and progression of lung cancer in different degrees.
4.The relationship between dysfunctional cognitive attitudes and personality disorder tendency in pa-tients with somatoform disorders
Chinese Journal of Behavioral Medicine and Brain Science 2016;25(8):728-731
Objective To examine the characteristics of dysfunctional attitudes in patients with so?matoform disorders and to delineate the relationship between dysfunctional attitudes and personality disorder tendency. Methods Sixty?four outpatients with somatoform disorder and 52 healthy individuals were recrui?ted and asked to complete the Personality Diagnostic Questionnaire( PDQ?4) and the Dysfunctional Attitudes Scale( DAS ) for the evaluation of their personality disorder tendency and cognitive characteristics. DAS scores were compared between patient and control groups. The relationship between DAS and PDQ?4 was e?valuated by comparing DAS scores of patients with and without personality disorder tendency and by correla?ting patients’ total scores of DAS and PDQ?4. Results Patients with somatoform disorder(150.13±31.75) showed significantly higher scores of DAS than healthy controls(121.62±20.30). Moreover,patients with per?sonality disorder tendency exhibited significantly higher scores in the total score of DAS and scores of five factors including vulnerability, absorption/exclusive, compulsion, dependence and cognitive philosophy ( P<0.05) . Finally,a positive correlation was found between total scores of DAS and PDQ?4( r=0.535, P<0.01) and the correlation coefficients between the total score of DAS and Cluster A( r=0.545) and C scores( r=0.625) were significantly higher than that of Cluster B score( r=0.317).Conclusion Patients with somato?form disorders have cognitive distortion,which is correlated with personality disorder tendency.
6.Diagnosis and Treatment of Acute Intestinal Perforation in Patients with Colorectal Carcinoma
Xianghai LAN ; Liyi WAN ; Liang XU
Journal of Chinese Physician 2001;0(03):-
Objective To investigate the clinical characteristics, diagnosis and treatment of acute intestinal perforation in the patients with colorectal carcinoma. Methods The clinical data of 38 colorectal carcinomas complicated with acute intestinal perforation treated in our hospital during 19 years were analyzed retrospectively. Results Acute intestinal perforation was common in old patients with colorectal carcinoma (mean age 62 years).The primary lesions were mostly located in left-side colon and superior rectum(27/38,71.1%). The perforation in the proximal colon of tumor and cecum accounted for 81.6%(31/38), and in tumor site accounted for 18.4%(7/38). The correct rate of preoperative diagnosis was only 15.8%(6/38). The postoperative complications were common and severe. The perioperative mortality was 42.1%(16/38). All the causes of death were multiple organ function deficiency. There were close relations between perioperative mortality and operation time. The postoperative recurrent rate was 41.2%(7/17). Five-year survival rate was 23.5%(4/17). Conclusion Early diagnosis, early operation and active prevention and treatment of multiple organ function deficiency were key to decrease the mortality of the colorectal carcinoma patients with acute intestinal perforation.
7.Analysis on Tongue Characteristics of 42 Cancer Patients during Chemotherapy
Yan LI ; Donggui WAN ; Rong LIANG
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(06):-
Objective To analyse the tongue characteristics of cancer patients during chemotherapy ,in order to guide the TCM treatment. Methods 42 patients' tongue figure was collected respectively before and after chemotherapy by Canon digital camera, then to analyse the characteristics. Results Purple tongue was the most common in tongue color, account for 38.10%;meanwhile the tongue with stasis patch or with toothmark were common in tongue shape, account for respectively 26.19% and 21.43%;white thick or greasy tongue fur was the most common, especially in the central of tongue. Conclusion Deficience of Qi and blood stasis syndrome is common in cancer patients after chemotherapy, it is helpful to provide tasis for treatment of tonifying Qi and activating blood during chemotherapy.
8.Influence of high myopia on expression of vascular endothelial growth factor and pigment epithelial derived factor in retina in diabetic guinea pig
Shuang, WANG ; Shenzhi, LIANG ; Guangming, WAN ; Yajuan, XU
Chinese Journal of Experimental Ophthalmology 2014;32(5):398-402
Background Diabetic retinopathy (DR) seems to be rarely found in high myopia patients with diabetes mellitus.This finding suggests that myopia,especially high myopia,plays a protective effect against DR.It is well-known that the primary pathological base of DR is neovescularization,and the changes of vascular endothelial growth factor (VEGF) and pigment epithelium derived factor (PEDF) are associated with DR.Objective This study was to analyze the expressions of VEGF and PEDF in retina and investigate the influence of high myopia on the pathogenesis of DR.Methods Forty-eight 3-day-old guinea pigs were randomly divided into normal control group,high myopia group,diabetic group and diabetes with high myopia group.Translucent goggles were worn in the right eyes of the guinea pigs for consecutive 8 weeks to induce high myopia,and streptozocin (STZ) was intraperitoneally injected at a dose of 60 mg/kg for four times,every three days for once,to establish diabetic models in the corresponding groups.Twelve weeks after modeling,the animals were sacrificed by excessive anesthesia,and the retinas were isolated for the histopathological examination.Expressions of VEGF and PEDF in the retinas were detected by immunohistochemistry.The use and care of experimental animals conformed to Regulations for the Administration of Affair Concerning Experimental Animals by State Science and Technology Commission.Results The diopter of the normal control group,high myopia group,diabetic group and diabetes with high myopia group were (+0.25±0.07),(-7.50±0.04),(+0.25±0.03) and (-7.50±0.02) D,the fasting glucose of the four groups were (5.3 ±0.1),(5.1 ±0.2),(19.7 ±0.4) and (18.5±0.3)mmol/L,respectively.Compared with the normal control group,the retinas of high myopia group were thin,and the ganglion cells were less.The retinas of diabetic group were loose and oedematous.The retinas of diabetes with high myopia group were thin and oedematous.The expressing level of VEGF in retinas (absorbance value,A) were 128.61 ±5.57,118.24±2.59,155.60±9.70 and 135.15±5.22 in the normal control group,high myopia group,diabetic group and diabetes with high myopia group,respectively,showing a significant difference among the groups (F=17.365,P=0.032),and the VEGF level was significantly lower in the diabetes with high myopia group than that of the diabetic group (t =5.210,P<0.05).The expressing level of PEDF in retinas (A value) were 145.57± 8.35,149.54±6.20,127.71±2.45 and 137.53±7.38,in the normal control group,high myopia group,diabetic group and diabetes with high myopia group,respectively,with a statistically significant difference among the four groups (F =19.210,P =0.019),and the PEDF level was significantly higher in the diabetes with high myopia group than that of the diabetic group (t=4.521,P<0.05).Conclusions The expression of VEGF is downregulated and PEDF is upregulated in the retinas of diabetes with high myopia guinea pigs,which may be an accountable mechanism for the low incidence of DR in high myopia eyes.
9.ERK Phosphorylation and Indirect Activation of EGFR Induced by Homocysteine in Cerebellar Granule Neuron
Jun YANG ; Lishu WAN ; Liang PENG ; Yan REN
Journal of China Medical University 2010;(9):743-745,763
Objective To study the relationship between extracellular signal-regulated kinases(ERK)phosphorylation and indirect activa-tion of the epidermal growth factor receptor(EGFR)in cultured cerebellar granule neurons induced by homocysteine.Methods We pri-marily cultured 7-day-old CD-1 mouse cerebellar granule neurons for 7 days and treated with different agents(saline,AG1478,Hcy and AG1478+Hcy).The phosphorylation of ERK was analyzed by Western blot,and apoptotic rate by flow cytometry.Results Compared with saline and AG1478 groups,the phosphorylation of ERK was increased in Hcy group(P 〈 0.05).When we pretreated the cells with tyr-phostin AG1478,an inhibitor of EGFR,there was no difference in the activation of ERK compared with the control group.We found obvious neuronal apoptosis when 7-day-old CD-1 mouse cerebellar granule neurons were cultured for 7 days and treated with Hcy for 6 hours,and the apoptosis induced by Hcy was aggravated when the neurons were pretreated with AG1478(P 〈 0.05).No apoptosis was found in the saline and AG1478 groups.Conclusion The role of Hcy on ERK activation suggests the involvement of an indirect activation process of EGFR,which has neural potentially protective effect.
10.A case report of primary hepatocellular carcinoma with gallbladder cancer
Dan QIN ; Yong WAN ; Xiaogang ZHANG ; Hua LIANG ; Chang LIU
Journal of Xi'an Jiaotong University(Medical Sciences) 2015;(2):285-286,140
ABSTRACT:Objective To a rare case of double primary cancer (hepatocellular carcinoma with gallbladder)to guide clinical application.Methods and Results We reported one case of primary hepatocellular carcinoma and gallbladder.A male patient,54 years old,had main complaints of intermittent right upper quadrant pain for 4 days. The abdominal CT of the local county hospital showed gallstones,gallbladder with liver infiltration.And then he went to the First Affiliated Hospital of Xi’an Jiaotong University for further treatment.Laboratory examination revealed:HBsAg(+),HBcAb(+),alpha-fetoprotein (AFP)> 60 500 ng/mL,carcinoembryonic antigen (CEA) 5.25 ng/mL.Abdominal CT showed hilar slightly stronger light echo groups:liver cancer or gallbladder cancer? Hepatic artery and portal vein CT imaging (CTA+CTV)examination showed the malignant tumor shadow in the inside of the left hepatic lobe huge,uneven thickening of the gallbladder wall,suspected liver disease with gallbladder infringement or gallbladder disease with liver infringement. With the preoperative preliminary consideration of primary liver cancer with infiltration of the gallbladder,we chose the operation as the resection of segment Ⅳ b and Ⅴ of the liver,cholecystectomy and T tube drainage.Pathological examination postoperative showed the bulky liver carcinoma grade Ⅲ and the poorly differentiated adenocarcinoma of gallbladder.A month later,abdominal CT showed the tumor spread intrahepatic,prompting the poor prognosis.Conclusion The two which are not continuous,which is the standard of double primary cancer,are not suitable for all double primary cancers.This case provides useful experience for future similar diagnosis and treatment of disease,and also helps us with timely and accurate identification of “metastatic”or “primary”,which is the key point for clinicians to give patients an effective treatment.