Objective To explore the clinical characteristics and diagnosis of primary small intestinal tumor(PSIT). Methods Retrospective analysis of the clinical and pathological data of the 31 PSIT cases was made. Results Duodenum was the most common site 67.74% for PSIT. The confirmed diagnosis rate was 54.84%(17/31)(duodenum was 66.67%,14/21; ileum and jejunum was 30%, 3/10, respectively ). 3 cases were benign tumors and 28 were malignant tumors.The adenocarcinoma was the most frequently seen malignant PSIT followed by lymphoma and often in duodenal. The features of the small intestinal tumor could be abdominal pain,abdominal mass,hemorrhage,obstruction,jaundice and fever.The chief method for diagnose was barium meal X-ray examination, especially with the hypotonic contrast X-ray examination and endoscopy.Superior mesenteric arteriography sometimes helped in determing site of gastrointestinal haemorrhage. CT scan could be helpful in diagnosis. Conclusion Duodenal adenocarcinoma is most common PSIT,followed by malignant lymphoma.Endoscopy is the best way to find out the tumor located in duodenum and hypotonic contrast X-ray examination is effective in diagnosis and locating of small bowl tumors.Superior mesenteric arteriography is a good way to find out angioma and leiomyoma. CT scanning are also helpful.

Most of the soil microorganisms are unculturable,which limits the exploitation and application of microbial resources.Metagenomics has great potential in the research of unculturable microorganisms in soil.Progress on the research of metagenomic DNA purification,metagenomic library construction and screening of soil microorganisms are reviewed briefly.

Composite Resins ; radiation effects ; Light

Alcoholism ; therapy ; Humans ; Methanol ; poisoning

Objective To explore the relationship among family functioning,coping style,and psychopathic personality for adult male prisoners.Methods 328 adult male prisoners were surveyed with Family APGAR Index,Simplified Coping Style Questionnaire and Psychopathic Deviate Scale.Different demographic variables were compared on male prisoners'family functioning,coping style and psychopathic personality.Coping style and psychopathic personality were compared among family functioning groups,then a relationship model was set up by structural equation modeling.Results The low age male prisoners showed significant lower growth (1.17 ±0.76),resolve (1.11 ±0.79),negative coping style(1.15 ± 0.51),the total scale of family APGAR (5.61 ± 2.73) and higher psychopathic personality (22.11 ± 4.95) than the high age male prisoners ((1.35 ± 0.72),(1.45 ± 0.68),(1.30±0.58),(6.29 ±2.63),(19.40 ±5.06),t=2.17,4.15,2.51,2.31,4.89).The rural male prisoners showed significant lower adaptation (1.04 ± 0.69) and higher positive coping style (1.95 ± 0.40) than the city male prisoners ((1.21 ± 0.74),(1.81 ± 0.43),t =2.07,3.09).The positive coping style (P =0.024)and psychopathic personality (P =0.000) of adult male prisoners among family functioning groups showed significantly difference.The strongest positive effect that adult male prisoners' positive coping style forecast family functioning was 0.275.The strongest negtive effect that male prisoners' psychopathic personality forecast family functioning was 0.257.The strongest negtive effect that male prisoners' negative coping style forecast psychopathic personality was 0.197.The strongest positive effect that male prisoners' family functioning forecast psychopathic personality was 0.266.Conclusions Positive coping style and good family functioning could effectively adjust adult male prisoners' personality.Positive coping style and perfect personality could effectively improve adult male prisoners' family functioning.Family functioning and psychopathic personality interact with each other.

Objective To assess the value of color Doppler flow imaging (CDFI) in indicating the recurrence and prognosis of liver cancer.Methods Two hundred and eighty-seven patients with primary liver cancer were enrolled,thirty-seven cases received operations ( 12.9% ).The size,profile,margin,echogen,blood supply of the tumors were observed preoperatively by CDFI. Twenty-eight patients were followed for 0.5 to 5 years.Results Recurrent nodules were seen in 24 cases (85.7%) during five years.Lesions larger than 5 cm recurred much earlier than those less than 5 cm in the diameter of the patients( P

Objective To explore the relationship among family functioning,positive and negative affect in male prisoners, in which the mediating effect of neuroticism and self-acceptance.Methods 315 male prisoners were surveyed with Family APGAR Index, Positive and Negative Affect Scale, Neurotism Scale,and the Self Acceptance Questionnaire.To compare positive and negative affect,neuroticism and self-acceptance of male prisoners in different family functioning groups.In addition,structural equation modeling was established among above mentioned variables.Results (1) Male prisoners in the worst family functio-ning group showed significant difference(P<0.05) in positive affect (26.31±6.55),neuroticism (14.23± 5.11) and self-acceptance (40.58±4.31) with those in the good family functioning group ((29.88±6.48), (11.49±4.89),(42.77±4.97)) and those in the worse family functioning group ((29.80±4.49),(12.91± 4.58),(42.39±5.54)).(2) Male prisoners'family functioning was significantly related to positive affect ( r=0.28) ,neuroticism ( r=-0.30) and self-acceptance ( r=0.20) (P<0.01) .Negative affect was significantly related to neuroticism ( r=-0.25) and self-acceptance ( r=0.39) (P<0.01) .( 3) Neuroticism and self-ac-ceptance played a chain mediating effect between family functioning and positive affect (P<0.01) .Neuroti-cism also played mediating effects between family functioning and negative affect as well as between family functioning and self-acceptance (P<0.01) .Conclusion Family functioning,neuroticism and self-acceptance have significant predictive power for male prisoners'positive and negative affect.To improve family functio-ning of male prisoners is conductive to personality formation and self-acceptance,furthermore,expressing pos-itive emotion experience.

Objective To study the effect of age and sex on circadian rhythms of renin-angiotensin system(RAS) .Methods 96 SPRD rats were divided into three groups.The levels of renin(Ren)activity,angiotensin Ⅱ(Ang Ⅱ)and angiotensin-converting-enzyme(ACE)in plasma or serum were respectively determined.Results The plasma or serum levels of renin,ACE,and angiotensin-Ⅱ in adult male group(D group)were significantly increased in comparison with elderly male group(M group)and elderly female group(F group).There were not significantly different between F group and M group in the levels of Ren activity,AngⅡ and ACE.The three substances presented typical circadian rhythms in three groups(P

Objective To investigate the value of echocardiography in the diagnosis of interrupted aortic arch (IAA). Methods Forty-three children that diagnosed as IAA by transthoracic echocardiography (TTE) were reviewed. The results of CTA (CT Angiography) and operation also were compared. Results Among the 43 children, 41 was admitted as IAA by operation and 2 were diagnosed as coarctation of aorta. According to the type of IAA, 25 cases were diagnosed as type A, 13 cases were diagnosed as type B, 3 cases were diagnosed as type C. Thirty-ifve cases were diagnosed by TTE correctly, 3 cases were misdiagnosed by TTE, 4 cases were suspected as IAA by TTE and ifnally conifrmed by operation. The accuracy rate was 81%(35/43). Among the 35 deifnite diagnosed cases, corrected typing cases were 30, the accuracy rate was 86%(30/35). The accuracy rate of type A, B, C were 96%(23/24), 64%(7/11) and 0. According to the results of CTA, 40 cases were diagnosed correctly, 1 case was misdiagnosed. The accuracy rate was 98%(40/41). Among the deifnite diagnosed cases, corrected typing rate was the same with operation result. Conclusions TTE is the ifrst choice for the detection of IAA. During TTE, in case the indistinct display of aortic arch, CTA should be used to improve the accuracy rate of IAA.

Objective To compare the value of color Doppler echocardiography in the diagnosis of coarctation of the aorta (COA) in comparison with CT angiography (CTA). Methods Ninety-two patients with COA were retrospectively analyzed that were confirmed by surgery from January 2009 to September 2013 and diagnosed by color Doppler echocardiography and CTA. Results Among 92 COA patients conifrmed by surgery, 87 patients were diagnosed correctly by echocardiography while 91 patients were diagnosed by CTA, and the accuracy of echocardiography and CTA were 95%(87/92) and 99%(91/92), respectively without significant difference (χ2=1.550, P=0.213). According to surgical findings, there were 222 anatomic abnormalities including 110 intra-cardiac, 13 heart-vessel connection and 99 vessel abnormalities. For 110 intra-cardiac abnormalities, echocardiography detected all abnormalities while CTA found 92 with 18 missed including 11 valve or valve ring lesions, 3 patent foramen ovale, 2 atrial septal defect, 1 ventricular septal defect and 1 endocardial cushion defect. The accuracy of echocardiography for intra-cardiac abnormalities was signiifcantly higher than that of CTA (100%, 110/110 vs 84%, 92/110,χ2=18.801, P=0.000). CTA and echocardiography detected all abnormalities of heart-vessel connection. For 99 vessel abnormalities, CTA showed an accuracy of 98%(97/99) with 2 missed lesions including 1 collateral circulation between the aorta and the pulmonary artery and 1 membranous narrow of the aorta, while echocardiography misdiagnosed 1 COA as interruption of aortic arch and missed 15 lesions, including 4 COA, 3 collateral arteries, 2 patent ductus arteriosus, 2 aberrant right subclavian artery, 2 brachiocephalic vein abnormality, 1 partial anomalous pulmonary venous drainage and 1 persistent left superior vena cava. The accuracy of CTA for detection of vessel abnormalities was signiifcantly higher than that of echocardiography (98%, 97/99 vs 84%, 83/99,χ2=11.350, P=0.000). Conclusions Both CTA and echocardiography are effective diagnostic modalities for COA and CTA is superior to echocardiography for detecting vessel anomalies whereas echocardiography is superior to CTA for detecting intra-cardiac abnormalities. The combination of both modalities will provide more accurate information for clinical diagnosis.