Pancreatic cancer is one of the most malignant gastrointestinal tumors,characterized by a poor prognosis,absence of specific clinical symptoms and signs,prone to metastases and lack of response to conventional therapy.1 year survival rate of this disease increased to about 20 ％ by gemcitabine,but the morbidity and mortality rates are still higher and higher in the whole worldwide.DNA methylation is one of the mechanisms of epigenetics which is the study of heritable changes in gene expression that are not coded in the DNA sequence itself.It seems that DNA methylation indeed plays an important role in the development and progression of pancreatic cancer.

Newborns,especially premature newborns,because of immature of immune function,have high incidence of sepsis.Today sepsis is still an important cause of neonatal death and poor prognosis.Unfortunately,clinical signs of sepsis are non-specific,so early diagnosis and treatment of the newborn infant with suspected sepsis are essential to prevent severe complications.Blood culture is the gold standard for diagnosis of sepsis,but the positive rote is low.Indicators in diagnosis of sepsis included acute phase reaction proteins,cytokines,cell surface antigen and bacterial DNA testing.This article compares and analyzes the indicators in diagnosis of neonatal sepsis.

Papers on medical information system published in 16 medical journals in 2013 JCR with their IF≥1 were retrieved from Web of Science(2010-2014).Social network analysis and co-word analysis of their high fre-quency key words showed that efficiency of medical information system implementation, acceptance behaviors of medical information system users, mining of medical data, application of medical information system in medical sci-ences, and application of decision support system in medical sciences were the hotspots in papers on medical infor-mation system.The authors pointed out that electronic health records, medical information system management, and application of emerging information technology in medical information system were still the study hotspots in the coming years.

Objective To explore the incidence of the carotid artery atherosclerotic plaque in patients with cerebral infarction(CI).Methods 138 CI patients on their carotid artery were examed with color doppler ultrasonography.The incidence,stability and location of the carotid artery atherosclerotic plaque in CI patients were observed and compared with those of the normal controls.Results 120 cases(87.7%) of the 138 CI patients were turned out 175 atherosclerotic plaques.36 cases of the 140 normal controls were turned out to be with atherosclerotic plaque(25.7%).There was significant difference between the two groups(P

Objective To study the effect of lidocaine combined with local anesthesia and psychological intervention in induced abortion.Methods200 cases of artificial abortion in our hospital from March 2015 to August 2016 were selected as the research object and randomly divided into control group and experimental group,with 100 cases in each group.The control group was treated with lidocaine for local anesthesia,direct abortion,and the experimental group was given lidocaine local anesthesia and psychological intervention.The pain and satisfaction index of the two groups were compared.ResultsAfter the treatment, the satisfaction rate of cervical dilatation in the experimental group was 93 cases was 93% higher than that in the control group, and the difference was statistically significant (P<0.05).The number of patients with grade Ⅱ pain in the experimental group was 12, and the number of patients with grade I pain was 87.In the control group, the number of patients with grade Ⅱ pain was 25, and the number of patients with grade Ⅱ pain was 57.But the control group was significantly lower than the experimental group, with statistical difference (P<0.05).In the control group, patients with grade Ⅱ pain were significantly higher than those in the experimental group, the number of patients with grade I pain was significantly less than that in the experimental group, and the difference was statistically significant (P<0.05).There was no significant difference in the operation time and blood loss between the control experimental and the control group.ConclusionThe application of lidocaine local anesthesia combined with psychological intervention can effectively relieve the pain of patients and improve the therapeutic effect.It has the value of clinical popularization and Application.

Objective To investigate the pathogenesis of gastroparesis in diabetic rats.Methods SD rats were randomly divided into control group and diabetes group.Ten weeks later,gastroparesis model was established.The apoptosis rate and mitochondrial membrane potential of the gastric smooth muscle cells were detected by flow cytometry.Cytochrome C was detected by immunohistochemistry.Results Compared with rats in control group:(1)Typical symptoms of diabetes mellitus appeared;The rate of gastric residual pigment was significantly higher(P

Therapeutic effect of pancreatic cancer depends on early detection and effective treatment.The early diagnosis of pancreatic cancer is so difficult that the discovery of pancreatic cancer is often in mid and late stages,so the treatment of meaning is not so satisfying.In recent years the rapid study of proteomics has brought great hope in the early discovery of pancreatic cancer to make it the post-genome era of functional genomics research in hot areas.Separating and identifying the serum、juice and tissue of patients with pancreatic cancer to find out the different proteins between normal and sick individuals can provide theoretical base and new ideas for the pathogenesis and early diagnosis of pancreatic cancer.

Objective To get the information about the infection condition of blood in voluntary donors in Fuling District from 2001 to 2007, so as to take measures to improve blood quality and ensure blood safety.Methods Serum ALT was detected with Reitman-Frankel assay, and HBsAg, anti-HCV, anti-HIV and anti-TP were detected with ELISA.Results A total of 72 868 serum samples from blood donors were detected, in which 5 512 (7.56%) were positive. The positive rates of HBsAg, anti-HCV, anti-HIV and anti-TP were 3.09%, 0.48%, 0.07% and 1.27% respectively, and the abnormality rate of ALT was 2.73%. There was statistical difference of positive rate among various years (from 2001 to 2007).Conclusion The positive rate of blood in voluntary donors decreases year by year. HBsAg was the highest (1.16%), followed by ALT (2.73%), anti-TP (1.27%), anti-HCV and anti-HIV. It suggests that blood quality monitoring should be strengthed to assure blood safety.

The immunohistochemical staining showed the connexin 43 (Cx43) was strongly expressed (average gray value, AGV=230±5), distributed at junction area and intercalated disks of cardiocytes in normal rats,and much less expressed (AGV 193±4) (P<0.01) and distribution-disorganized in STZ-induced diabetic rats. This may be associated with the pathogenesis of diabetic myocardial lesions.

Objective To investigate the histopathologic changes of andometrium and research the cause of abnomal uterine bleeding in permenopausal women.Methods The biopsy sample of andometrium of 870 cases with abnomal uterine bleeding in permenopausal women were restrospectively analyzed.Results The most commonly hostopathologic change in andometrium of abnomal ulterine bleeding in permenopausal women is endometrial hyperplasia(76.67%).The most cases were simple hyperplasia(66.12%).3.0%of cases were endometrial carcinoma,most of them were well-differentiated endometrioid adenocarcinoma(88.46%).The morphological features of the endometrial adenocarcinomas is loss of polarity of the endometrial glands.The tumor cells have large round vesicular nuclei,prominent nucleoli and coarse chromatin.In addition,endometrial stroma was instead of by the fibrous and/or granulation tissue type stroma,usually with inflammatory response.Conclusions Abnormal ulterine bleeding occurred mainly in permenopausal period.Endometrial hyperplasia is the main cause of abnomal ulterine bleeding in permenopausal period.Most endometrial carcinomas in perimenpausal period are well-differentiated endometrioid adenocarcinomas.An important differential diagnosis of the endometrioid carcinoma in a curettage specimen is to differentiate it from atypical endometrial hyperplasia and atypical polypoid adenomyoma.