Objective To explore imaging features of Zinner syndrome.Methods Eight male patients with clinically diagnosed Zinner syndrome performed abdominal and pelvic CT and /or MRI scan.The radiological data was studied retrospectively.Results Eight cases showed seminal vesicle cyst with ipsilateral renal agenesis on CT and/or MR imaging ( left side, n =5; right side, n =3).The maximal diameter of seminal vesicle cysts varied from 4.2 to 7.0 cm, and appeared as oval cystic lesion with irregular contour or tube-like dilatation , which appeared low density on CT image and hypo-or hyperintensity on T 1 WI and hyperintensity on T 2 WI.Bladder compression was found in 6 cases.Fuild-fuild level in the cysts was seen in 2 cases.Remnants of ureter structure were seen in only 1 case.There was no other accompanying abnormality of urinary system.Conclusions Zinner syndrome presents with characteristic imaging features , and the key issue is differential diagnosis of seminal vesicle cysts.

ABCC8,KCNJ11,and GLUD1 gene mutations were investigated in a male patient with congenital hyperinsulinism and his parents were also investigated.A 1484 G＞A mutation was found in the 10th exon of ABCC8 gene in the patient,which leads to amino acid substitution at the 495 residue of the sulphonylurea receptor SUR1 protein.The patient's father also carried the same heterozygous inactive mutation,while the genotype of the mother was normal,indicating that the gene mutation of the patient was paternally inherited.According to that mutation,it is deduced that the patient may suffer from the focal type of congenital hyperinsulinism.

Objective By analyzing the epidemiological characteristics and trends of brucellosis in Ji'nan City,to provide a scientific basis for further prevention and control of the disease.Methods Serum samples of suspected brucellosis patients were collected from every county (city,district) of Ji'nan City from 2008 to 2014,and these samples were screened by Rose-bengal plate agglutination test (RBPT).Then positive samples were confirmed by Standard tube agglutination test (SAT),and experimental data and results were analyzed by statistics.Results Totally 2713 serum samples of suspected brucellosis patients were tested,and 200 were positive by SAT.Temporal distribution:the serum antibody positive specimens were detected each month throughout the year,and the results showed clear seasonal prevalence by concentrating from March to September (82.07％,151/184).Population distribution:the serum antibody positive rate of males was higher than that of females,the ratio was 2.08:1.00,and the cases were found among 15 to 75 years old,while concentrated from 30 to 65 (67.00％,134/200).Spatial distribution:except Huaiyin District,positive samples were detected in all other 10 counties (cities,districts) of Ji'nan City,most of them (92.5％,185/200) in Shanghe,Zhangqiu,Changqing,Shizhong and Licheng counties (cities,districts).Conclusions Brucellosis epidemic in Ji'nan is serious,and cases have occurred mostly in spring,summer and autumn.It is recommended that health propaganda and education should be strengthened in order to enhance selfprotection awareness of the exposed population,and then improve the physical examination for early discovery,early reporting and early treatment.At the same time,it is important to cooperate with the Department of Livestock to prevent and control brucellosis.

Objective To discuss the effect of the quality control circle(QCC)activities in reducing the incidence of cold in reflux-enema of children.Methods The QCC team was built,reducing the incidence of cold in reflux-enema of children was named as the theme,to grasp the present situation,set the goal,fix the methods and carry out countermeasures.Results Through the development of QCC,making the standards of reflux-enema,the incidence rate of cold reduced from 25.0％(7/28) down to 3.6％(1/28),the nurses' abilities of technical operation and communication improved significantly.Conclusions Application of QCC in reflux-enema of children is practical.It can effectively improve the nurses' awareness of participating in the implementation management and nursing management system.By making the standardization of reflux-enema,nurses can improve the quality and effect of the reflux-enema and ensure the quality and safety of nursing.

Chemokines are small cytokines with chemotactic activity, they are involved in regulating immune responses and inflammatory responses. In the development of tumors, chemokines are multi-functional mediators that not only affect the infiltration of immune cells into the tumor, but also have an important impact on tumor growth, angiogenesis, invasion, and metastasis. Besides, they are important targets of tumor therapy. Here we review chemokines involved in the regulation of signaling pathways, analyze the mechanism of chemokines in the development of breast cancer, summarize the chemokines targeted drugs for breast cancer in recent years and make a prospect about the role of chemokines in anti-breast cancer therapy.

Objective:To construct an intelligent performance measurement system of gastrointestinal endoscopy and to analyze its value for endoscopic quality improvement.Methods:The intelligent gastrointestinal endoscopy performance measurement system was developed by using the deep convolutional neural network (DCNN) and deep reinforcement learning, based on the Digital Imaging and Communications in Medicine. Images were acquired of patients undergoing gastrointestinal endoscopy at Digestive Endoscopy Center of Renmin Hospital of Wuhan University from December 2016 to October 2018. The system applied cecum recognition model (DCNN1), images in vitro and in vivo recognition model (DCNN2), and identification model at 26 gastric sites (DCNN3) to monitor indices such as cecal intubation rate, colonoscopic withdrawal time, gastroscopic inspection time, and gastroscopic coverage. Images of 83 gastroscopies and 205 colonoscopies acquired at Digestive Endoscopy Center of Renmin Hospital of Wuhan University from March to November 2019 were randomly selected to examine the effectiveness of the system. Results:The intelligent gastrointestinal endoscopy performance measurement system consisted of quality analysis of both gastroscopy and colonoscopy, including all indices, and could be generated automatically at any time. The accuracy for cecal intubation rate, colonoscopic withdrawal time, gastroscopic inspection time, and gastroscopic coverage were 92.5% (172/186), 91.7% (188/205), 100.0% (83/83), 89.3% (1 928/2 158), respectively.Conclusion:The intelligent performance measurement system for gastrointestinal endoscopy can be recommended for the quality control of gastrointestinal endoscopy, from which endoscopists can get feedback and improve the quality of gastrointestinal endoscopy.

cerebral infarction as compare with patients at Grade 1-2 in both vascular locations, whereas the risk was not significantly increased in patients at Grade 3-4 in only one vascular location. Conclusions The simple method of assessing the degree of arterial atherosclerosis can be used to evaluate carotid artery and lower-extremity artery atherosclerosis in patients with type 2 diabetes. Patients with plaques or stenosis in both vascular locations were with a significantly increased risk of coronary heart disease or cerebral infarction if they were evaluated concurrently.

Objective To evaluate the relationship between stenosis of intra- or extra-cranial cerebral large artery and capsular warning syndrome(CWS). Methods Eleven consecutive CWS patients hospitalized during period of time from November 2008 to December 2009 were retrospectively analyzed.Result In these 11 patients with CWS, 5 patients had motor symptoms only, 4 patients had pure sensory symptoms, and 2 patients had sensorimotor symptoms. Ten patients underwent cervical contrast-enhanced MRA and intracranial MRA examination. The results showed no sign of arterial stenosis. Seven CWS patients eventually had strokes, 1 progressed to stroke despite receiving the therapy of antiplatelet and anticoagulation. All stroke lesions were located in the capsula interna. All the CWS patients had vascular risks: 7 were smoker, 8 had hypertension, 1 had diabetes mellitus, and 5 had hyperlipidemia. One patient had a history of previous stroke; no patient had a history of ischemic heart disease or atrial fibrillation. At follow-up(10. 2 ±3.4)mouths, the average modified Rankin scale score for all patients was 0. 73 ± 1.20.Conclusion CWS was not associated with stenosis of the intra and extra-cranial large cerebral arteries.CWS may be associated with small-vessel single-penetrator disease.

Objective To investigate the distribution and antibiotic resistance of clinical Pseudomonas aeruginosa in Yunnan provincal of China in 2014.Methods Pseudomonas aeruginosa were collected from 28 hospitals in Yunnan surveillance of China.All hospitals were carried with the unified solution for bacteria culture,isolation,identification and antibiotic sensitivity tests according to CLSI M100-S24.The data of 2 873 strains pseudomonas aeruginosa were analyzed by WHONET5.6 software.Results 2 873 clinical strains of non-repetitive Pseudomonas aeruginosa isolates,90.36%were isolated from hospitalized patients and 60.32% from sputum,8.42% from urine,8.11% from secretion,4.70% from abscess,2.92% from blood,etc.The sensitive rates of common antimicrobial agents of Pseudomonas aeruginosa in top five were turn amikacin (88.7%),piperacillin/he azole temple (85.0%),tobramycin (83.1%),piperacillin (80.3%) and cefepime (80.1%).59.0% of the Pseudomonas aeruginosa strains were resistant to Aztreonam.20.9%-29.7% of the Pseudomonas aeruginosa strains were resistant to Imipenem,Ceftazidime,Meropenem,Ciprofloxacin and Levofloxacin.The Pseudomonas aeruginosa isolates showed the lowest resistance rate (10.3%-19.9%) to Piperacillin,Gentamicin,Cefepime,Tobramycin,Piperacillin/Tazobactam and Amikacin.Conclusion The antimicrobial susceptibility pattern varies widly with Pseudomonas aeruginosa isolated in Yunnan of China in 2014.Antimicrobial resistance sur-Monitoring the antibiotic resistant trend of Pseudomonas aeruginosa and implementing the nosocomial infection control policy become more important in hospital management setting.