Cartilage ; surgery ; Humans ; Tympanoplasty

Objective: To learn the influencing factors for self-violent thoughts and behaviors among the ninth-grade students in Jiangbei District of Ningbo, so as to provide the basis for carrying out psychological intervention. Methods: The ninth-grade students in a junior high school each of the six streets ( towns ) in Jiangbei District were recruited by multi-stage cluster sampling method from October to November 2018. A self-designed questionnaire was used to investigate the general information, life style, psychological condition, self-violent thoughts and behaviors in the latest year. Multivariate logistic regression model was used to analyze the influencing factors for self-violent thoughts and behaviors. Results: A total of 1 300 questionnaires were issued and 1 238 valid ones were recovered, with an effective rate of 95.23%. The prevalence rates of self-violent thoughts and behaviors among the ninth-grade students were 16.88% and 8.48%. TheResults of the multivariate logistic regression analysis showed that abnormal marital status of parents ( OR=2.074, 95%CI: 1.139-3.775 ) , no moderate physical activity ( OR=1.764, 95%CI: 1.101-2.826 ) , sleeping less than 8 hours ( OR=1.858, 95%CI: 1.273-2.712 ) , alcohol consumption ( OR=2.108, 95%CI: 1.448-3.070 ) , sense of despair ( OR=6.397, 95%CI: 4.195-9.757 ) , sense of anxiety ( OR=4.094, 95%CI: 2.725-6.151 ) , sense of loneliness ( OR=1.879, 95%CI: 1.241-2.854 ) , and cyber-bullying ( OR=5.155, 95%CI: 2.780-9.556 ) were risk factors for self-violent thoughts; not living with parents ( OR=2.057, 95%CI: 1.021-4.145 ) , alcohol consumption ( OR=1.756, 95%CI: 1.074-2.872 ) , sense of despair ( OR=7.197, 95%CI: 4.365-11.864 ) , sense of anxiety ( OR=5.832, 95%CI: 3.276-10.382 ) , fighting ( OR=2.272, 95%CI: 1.219-4.232 ) and physical bullying ( OR=3.462, 95%CI: 1.135-10.558 ) were risk factors for self-violent behaviors. Conclusion Drinking, family relationship, bullying, and mental health problems such as sense of despair and anxiety were associated with the self-violent thoughts and behaviors of ninth-grade students.

Cellular fibronectin (cFn) is a type of bioactive non-collagen glycoprotein regarded as the main substance used to maintain periodontal attachment. The content of cFn in some specific sites can reflect the progress of periodontitis or peri-implantitis. This study aims to evaluate the expression of cFn messenger RNA (mRNA) in tissues of adult periodontitis and peri-implantitis by real-time fluorescent quantitative polymerase chain reaction (PCR) and to determine its clinical significance. A total of 30 patients were divided into three groups of 10: healthy, adult periodontitis and peri-implantitis. Periodontal tissue biopsies (1 mm×1 mm×1 mm) from each patient were frozen in liquid nitrogen. Total RNA was extracted from these tissues, and the content, purity and integrity were detected. Specific primers were designed according to the sequence, and the mRNA expression levels of cellular fibronectin were detected by real-time PCR. The purity and integrity of the extracted total RNA were both high, and the specificity of amplified genes was very high with no other pollution. The mRNA expression of cFn in the adult periodontitis group (1.526±0.441) was lower than that in the healthy group (3.253±0.736). However, the mRNA expression of cFn in the peri-implantitis group (3.965±0.537) was significantly higher than that in the healthy group. The difference revealed that although both processes were destructive inflammatory reactions in the periodontium, the pathomechanisms were different and the variation started from the transcription level of the cFn gene.
Adult ; Alveolar Bone Loss ; metabolism ; Female ; Fibronectins ; analysis ; genetics ; Gingiva ; metabolism ; Humans ; Male ; Middle Aged ; Peri-Implantitis ; metabolism ; Periodontal Attachment Loss ; metabolism ; Periodontal Index ; Periodontal Pocket ; metabolism ; Periodontitis ; metabolism ; Periodontium ; metabolism ; RNA, Messenger ; analysis ; Real-Time Polymerase Chain Reaction ; Transcription, Genetic ; genetics ; Young Adult

ObjectiveTo observe the prepulse inhibition(PPI) ot the startle reflex of pure cerebral concussion (PCC) suffered from one concussion and multiple cerebral concussion (MCC) suffered from three concussions in rats,and to explore accumulate effect upon cognitive dysfunction of MCC.MethodsA metallic pendulum striker device for closed head injury was employed to duplicate PCC and MCC models in Stragu-Dawley rats.The MCC rats were hit three times on rats'head and it is interval 24 hours for every hit.According to the criteria of cerebral concussion,the investigated animals were divided into PCC group and MCC group at freedom.One control group was used.Each group included 10 animals.Each experience mental animal was tested from 3 days pre-injury to 28 days post-concussion.Startle reflex amplitude (for P values),pre-stimulation induced reflex amplitude on three standard stimulations,that was,67dB,69dB and 73dB (for PP67,PP69 and PP73 values) and prepulse inhibition of the startle reflex (PPI) were collected.ResultsThe P values and three PP values in the first three days of pre-replication experiment,there was no statistical significance in each group.However the P values and PP67,PP69 and PP73 values declined until to the 16th day after injury (P＜0.05),then recovered in PCC group.The P value and PP67,PP69 and PP73 values changes of MCC group declined and not recovered until to test end (P＜0.05 ) and they were more lower than PCC.The three PPI values were a little bit increase in both groups,there were statistics significance at some test points (P＜0.05) compared with control.ConclusionThe startle reflex amplitude and pre-stimulation induced reflex amplitude weaken after cerebral concussion and there is damaging accumulate effect to injury times,the PPI is enlanced by cerebral concussion.

Animals ; Berberine/pharmacology* ; Blood Glucose ; Diabetes Mellitus, Experimental/drug therapy* ; Diabetes Mellitus, Type 2 ; Insulin ; Insulin Resistance ; Rats

AIM To study the effects of baicalin and gardenoside pairing on 5-lox/CysLTs/CysLT pathway of rats with cerebral ischemia injury.METHODS SD rats randomly assigned into control group,model group,baicalin and gardenoside pairing groups (7 ∶ 3,dosed at 30,45,60 mg/kg,respectively) in their cerebral ischemia recovery period were simulated with permanent middle cerebral artery occlusion (pMCAO) if necessary.After a week of natural recovery,the drugs' pharmacodynamic effects were evaluated by the neurofunctional scoring and HE staining,their impact on the content of CysLTs was determined by ELISA,and the influence on the expression of 5-lox,CysLT1 and CysLT2 was detected by western blot.RESULTS One-week consecutive administration of baicalin and gardenoside pairing contributed to a reduction in infiltration and tissue edema of ischemic cells.If compared with pMCAO group,the baicalin and gardenoside pairing groups were observed with significantly lowered scores of neurologic functioning,inhibited microglia activation,decreased content of CysLTs and down-regulated expression of 5-LOX,CysLT1 and CysLT2 (P ＜ 0.01).CONCLUSION Baicalin and gardenia pairing's alleviating effect to the damage of cerebral ischemia may be associated with its inhibition on microglia activation and 5-lox/CysLTs/CysLT signaling pathway,and thus an inflammatory impairment reduction.

Objective To evaluate the CT findings of pancreatic carcinoid tumors.Methods The CT imaging data of five patients with pancreatic carcinoid tumors confirmed by pathology were retrospectively analyzed.Results The tumors ranged in maximum diameter from 2.0 to 11.0 cm with a mean of 6.4 cm. On unenhanced CT,the tumors were slightly hypodense relative to the pancreatic parenchyma,homogenous in 2 cases,and heterogenous in 3 cases.One tumor showed calcification.After contrast material injection, the solid component of the tumor showed marked heterogenous enhancement on the arterial phase scanning in 3 cases,and mild heterogenous enhancement in 2 cases.The degree of tumor enhancement was less intense than the surrounding pancreatic parenchyma due to necrosis of various degree,which led to the cystic appearance of the tumor in 1 ease.On the portal phase scanning,all tumors showed marked enhancement similar to that of the pancreatic parenchyma.On the delayed phase scanning,the degree of enhancement was more intense than the surrounding pancreatic parenchyma in 1 case.Liver metastases with retroperitoneal lymphadenopathy and peripancreatic vessels invasion were seen in 1 case.No dilatation of the biliary tract or pancreatic duct was present.Conclusion The CT features of pancreatic carcinoid tumors included infrequent dilatation of the biliary tract or pancreatic duct and unusual vascular involvement,calcification within the mass,marked enhancement similar to that of the surrounding pancreatic parenchyma during the portal phase scanning and more intense during the delayed phase scanning.

Objective To determine the clinical features,neurophysiological characteristics and cervical magnetic resonance imaging of sensory neumnopathy,and to describe the pathology of skin nerve, sural nerve and spinal dorsal columns.Methods Two patients who died from sensory neuron disease (SND)after infection of digestive tract were discussed including clinical features and ancillary tests which included neurophysiology and pathology of peripheral nerve and spinal dorsal columns.Associated documents are reviewed.Results Early ataxia,widespread sensory symptoms and global loss of deep tendon reflex were the distinctive signs of SND,which was characterized by non-length-dependent abnormalities of sensory nerve action potentials,a hallmark of ganglionopathies.The second patient showed normal cervical magnetic resonance imaging possibly because of short course of disease,while diffuse hyperintensity in the spinal posterior columns of SND was reported.Demyelination of spinal posterior columns and loss of mostly large diameter nerve fibers without regeneration clusters were the main pathological features.Conclusions The distinctive clinical features and neurophysiological characteristics of SND indicate that peripheral sensory nerve fibers are widely damaged.Pathology of spinal posterior columns confirm that central sensory pathway are impaired which allow the localization of the pathologic site to the dorsal root ganglion neurons.Cervical spinal MRI of SND are possibly normal at early phase.

The cardiovascular circulation feedback control treatment instrument (CFCTI) is an automatic feedback control treatment system, which has the function of monitoring, alarming, trouble self-diagnosis and testing on the line in the closed loop. The instrument is designed based on the successful clinical experiences and the data are inputted into the computer in real-time through a pressure sensor and A/D card. User interface window is set up for the doctor's choosing different medicine. The orders are outputted to control the dose of medicine through the transfusion system. The response to medicine is updated continually. CFCTI can avoid the man-made errors and the long interval of sampling. Its reliability and accuracy in rescuing the critical patients are much higher than the traditional methods.
Automation ; instrumentation ; Cardiovascular System ; Feedback ; Medication Systems

OBJECTIVETo explore the diagnostic value of CT in midgut malrotation.

METHODSThe CT appearances of 16 patients with midgut malrotation were analyzed retrospectively.

RESULTSThe features of CT manifestation in 16 cases were as follows: (1) Horizontal part of duodenum could not reach medioventral line or could reach it but encircled right-down behind the superior mesenteric artery(SMA). (2) Ectopic ileocecal junction. (3) Jejunum located in right-middle abdomen while ileum in left abdomen. (4) A clockwise or counterclockwise rotation of the superior mesenteric vein (SMV) around the SMA. (5) Mid-gut volvulus.(6)Accompanied by other malformations.

CONCLUSIONAmbulation of duodenum, location of the small intestine and colon as well as anatomical position of mesenteric vessels should be intensively observed in order to exclude midgut malrotation.

Adolescent ; Adult ; Aged ; Child ; Child, Preschool ; Digestive System Abnormalities ; diagnostic imaging ; Female ; Humans ; Infant ; Infant, Newborn ; Intestine, Small ; diagnostic imaging ; Jejunum ; diagnostic imaging ; Male ; Mesentery ; diagnostic imaging ; Middle Aged ; Retrospective Studies ; Tomography, X-Ray Computed ; Torsion Abnormality ; diagnostic imaging ; Young Adult