By analyzing the basic line of medical ethics,this paper points out the collapse of basic line of medical ethics is due to the lack of people-oriented spirit in medical activities.Hospitals and medical staff should build up people-oriented spirit and conscience,strengthen the sense of honor and humiliation,thus to prevent the recollapse of the basic line of medical ethics and build up a harmonious physician-patient relationship.This project is significant in conducting the educational program of social glory and humiliation sense.

Objective To probe the value of absent or reversed diastolic flow in hepatic artery shown by Doppler sonography of recently transplanted liver in predicting subsequent hepatic artery thrombosis.Methods The records of 54 liver transplantations performed were retrospectively reviewed.The first Doppler study of every case was done within 24 h after transplantation and subsequently reviewed.Findings were categoried into one of three patterns: forward flow,no flow and reversed flow throughout diastole.Meantime,the flow status of portal vein of every case was studied by Doppler sonography.Results Of 54 liver transplants, 12 had aberrant diastolic flow in the hepatic artery after liver transplantation.Four had reversed flow and 8 showed no flow in diastole.In this group of 12 transplants,hepatic artery thrombosis was not developed.Conclusions Reversed or absent diastolic flow in hepatic artery of a recently transplanted liver has no correlation with subsequent hepatic artery thrombosis.

Objective To investigate the association between single nucleotide polymorphisms (SNPs) in the IL2RA-RBM17 region and vitiligo in the Chinese Mongolian population.Methods Five milliliters of venous blood samples were collected from 425 patients with vitiligo (patient group) and 503 healthy human controls (control group) of Mongolian nationality after informed consent,and genomic DNA was extracted with the AxyPrep DNA extraction kit (AP-MX-BL-GDNA-25).Nine SNPs were selected across the IL2RA-RBM17 region,including rs706779,rs3134883,rs7090530,rs12251307,rs4750005,rs3920615,rs4747887,rs4750012 and rs7099083.Ligase detection reaction (LDR) was performed for SNP genotyping.With the PLINK 1.07 and SPSS 11.0 packages,statistical analysis was carried out by the chi-square test for comparisons of allele and genotype frequencies between the patient group and control group.Linkage disequilibrium analysis was performed for 5 SNPs by calculating the r2 and D' values.Haplotype analysis of 5 related SNPs was conducted to investigate differences in haplotype frequencies between the patient group and control group.Results There were significant differences in allele frequencies of 5 SNPs,including rs4750005,rs3920615,rs4747887,rs4750012 and rs7099083,between the patient group and control group (all P ＜ 0.05).Under a dominant mode of inheritance,a significant decrease was observed in the frequencies of GG/GC genotypes of rs3920615,CT/CC genotypes of rs4747887,CT/CC genotypes of rs4750005,TC/TT genotypes of rs4750012 and AG/AA genotypes of rs7099083 in the patient group compared with the control group (all P ＜ 0.005 6).Moderate to strong linkage disequilibrium was observed between the 5 SNPs (D' =0.424-1,r2=0.137-0.985).Haplotype analysis showed that the frequency of a haplotype (H2:CGCTA) was significantly lower in the patient group than in the control group,and the difference reached statistical significance after Bonferroni adjustment (P=0.001 6,OR =0.674).Conclusion SNPs in the IL2RA-RBM17 region are associated with vitiligo in the Chinese Mongolian population.

Objective To evaluate the value of ultrasound in diagnosing shoulder lesions.Methods Ultrasound images were obtained by two museuloskeletal sonologists in 111 patients suspected of having rotator cuff and non-rotator cuff lesions which were confirmed by following arthroscopic surgery.Results The arthroscopic findings demonstrated that there were two or more lesions in one patient in majority of patients,included 67 supraspinous tendon tears,5 infraspinous or subscapular tendon injuries,10 calcific tendonosis,2suprascapular notch cysts,34 subaeromial bursitis,1 intrabursa loose body,13 biceps longus tendon dislocation or disruption,and 21 lahrum injury.The accuracy of ultrasonogrpahy was 92% in diagnosis of supraspinous tendons tear,97% in subscapular tendon inj uries,96% in calcific tendonitis,1 00% in suprascapular notch cysts,88% in subacromial bursitis,100% in biceps longus tendon dislocation or disruption,and 81% in labrum injury.Conclusions Ultrasound can evaluate shoulder lesions effectively.

Objective To investigate skin manifestations and comorbidities of chronic arsenicosis due to conta?minated drinking water, and to explore their possible risk factors. Methods Data about demographic characteristics, skin manifestations and comorbidities were collected from 95 patients with chronic arsenicosis due to contaminated drinking water in Inner Mongolia, and retrospectively analyzed. A logistic regression model was established to analyze associations of skin manifestations and comorbidities with patients′ gender, age, age at onset of drinking of arsenic?contaminated water, arsenic concentrations in water and duration of arsenic exposure. Results Among the 95 patients, 77 had hyperpigmentation, 75 hypopigmentation, 93 palmoplantar keratoderma, 27 skin cancer, and 8 multiple skin cancer. Five patients were complicated by tuberculosis, 15 by hypertension, 2 by rheumatoid arthritis, 4 by cerebral infarction, 7 by coronary heart diseases, 3 by internal malignancy, 6 by hepatic cirrhosis and 2 by anemia. Logistic regression analysis revealed a significant correlation between hyperpigmentation and arsenic concentrations in water(OR=0.32, 95%CI=0.10-0.98;ORadjusted=0.27, 95%CI=0.08-0.90), between occurrence of hepatic cirrhosis and arsenic concentrations in water (OR=24.67, 95%CI=2.69-226.57;ORadjusted=22.51, 95%CI=2.38-213.11), and between occurrence of coronary heart diseases and duration of arsenic exposure(OR=6.41, 95%CI=1.09-37.88;ORadjusted=8.55, 95%CI=1.21-60.41). Conclusions There is a high incidence of aberrant pigment metabolism, palmoplantar keratoderma and skin cancer in patients with chronic arsenicosis due to contaminated drinking water. Different arsenic concentrations in water and duration of arsenic exposure seem to have different influences on the human body.

Objective To assess the effectiveness of cerebral hemodynamical changes after carotid endarterectomy (CEA).Methods Eleven patients with symptomatic internal carotid arterial stenosis were selected.Before and after CEA,the peak systolic velocity,blood flow volume in ipsilateral internal carotid artery and the peak systolic velocity in bilateral cerebral middle artery were measured by color Doppler flow imaging (CDFI) and transcranial Doppler (TCD).Also collateral circulations via the circle of Willis and the ophthalmic artery were detected.Results After operation,the systolic peak velocity in the ispilateal internal carotid arteries decreased [( 291.70 ? 65.2 5)cm/s vs ( 100.85 ? 35.68 ) cm/s,P

The present residents training for ultrasound departments depends mostly on poorlyscheduled rotation and clinical clerkship,with repeated and obsolete subjects in their training.The authors identified these setbacks and such characteristics as complication of ultrasound medicine,complex and variable ultrasonic scan technique,and the high threshold for beginners.In view of this,the authors adopted the tutorial system training mode for cultivating the residents in their medical care,teaching,research and foreign language competencies.A questionnaire survey of 44 residents so trained evaluated outcomes of the mode,with constructive suggestions raised on expansion of the training base,improvement of teachers’competency and reduction of trainees' workload.

Objective To investigate the incidence,sonographic appearance of the anatomic variation of carpal tunnel median nerve and its accompanying structures in healthy volunteers and explore the value of this variation in carpal tunnel syndrome.Methods A total of 360 hands of 180 healthy volunteers were included in the study.The full course of the median nerve in the forearm and carpal tunnel was examined with high-frequency ultrasound.The median nerve was first located in cross section at wrist and then with continuous cross-sectional scanning to observe the the full course of the median nerve in the forearm and carpal tunnel with high-frequency ultrasound.Results Anatomic variation of carpal tunnel median nerve and its accompanying structures were observed:① High division median nerve were found in 2 wrists (0.56 ％) ;②Bifid median nerve were found in 17 wrists (4.72％) ;③Persistent median artery were found in 22 wrists (6.11％),and 2 wrists (0.56％) were also found accompanied vein.Aanatomic variation of carpal tunnel median nerve accompanied with persistent median artery were observed in 16 wrists (4.44 ％).Conclusions High-frequency ultrasound was sensitive to diagnose the anatomic variation of carpal tunnel median nerve and its accompanying structures.Recognition of these variations can help us to make correct diagnosis of carpal tunnel syndrome.

Objective To investigate the association between polymorphisms in the tumor necrosis factor α-induced protein 3 (TNFAIP3)-interacting protein 1 (TNIP1) gene and psoriasis vulgaris in a Han population from north China.Methods Totally,465 patients with psoriasis vulgaris (PsV) and 476 healthy human controls were enrolled into the study.Five milliliters of venous blood samples were collected from these subjects after informed consent.Three single nucleotide polymorphisms (SNPs) in the TNIP1 gene,including rs17728338,rs3762999 and rs999556,were selected for genotyping with ligase detection reaction (LDR).With the PLINK 1.07 package,statistical analysis was carried out by using the chi-square test for comparisons of allele frequencies and genotype frequencies between the patient group and control group.The allelic odds ratio (OR) and its 95％ confidence interval (CI) were calculated.In addition,linkage disequilibrium analysis was performed for the three SNPs by calculating the r2 and D' values.Results There was a difference in the allele frequencies of the three SNPs between the patients with psoriasis vulgaris and controls,but the difference was statistically significant in only the allele frequencies of rs17728338,but not in those of the other two SNPs after Bonferroni correction.Under the dominant inheritance model,the genotype frequencies of the 3 SNPs all significantly differed between the patients and controls after Bonferroni correction (all P ＜ 0.016 7).Stratification analysis showed that there was a significant difference in the allele and genotype frequencies of the three SNPs between the patients with a family history and healthy controls (all P ＜ 0.016 7),and the frequency of A allele of rs17728338 was significantly lower in the controls than in the patients with psoriasis vulgaris,patients with early-onset psoriasis vulgaris (n =355),patients with late-onset psoriasis vulgaris (n =107),patients with a family history (n =68),and patients without a family history (n =394) (all P ＜ 0.0167).Strong linkage disequilibrium existed between rs3762999 and rs999556 (r2 =0.910,D' =0.982),and moderate linkage disequilibrium existed between rs17728338 and rs3762999 (r2 =0.371,D' =0.989) as well as rs999556 (r2 =0.353,D' =1).Conclusion The SNPs rs17728338,rs3762999 and rs999556 in the TNIP1 gene were associated with psoriasis vulgaris in the Chinese Han population.

Objective To explore the effect of calreticulin (CRT) on cell proliferation and invasion of human hepatocellular carcinoma cell line SMMC-7721 and HepG2.Methods SMMC-7721 and HepG2 cells were transfected with small interfering RNA (siRNA).The transfection rate was detected by immunoflurescence and western blot.The cell proliferation,invasion and apoptosis of SMMC-7721 and HepG2 cells were determined by using cell counting kit-8 (CCK-8) assays,transwell assays and flow cytometry,respectively.The p-Akt and Akt levels were detected by western blot.Results The growth inhibition rate in the siRNA experimental group of SMMC-7721 and HepG2 cells for 24,36 and 48 h were (41.0 ±2.2) ％,(46.5 ±1.6)％,(59.7 ±2.2)％ and (36.8 ±2.7)％,(47.3 ± 1.8)％,(61.5 ±3.2)％,respectively.The apoptosis rate after down-regulating the expression of CRT in SMMC-7721 and HepG2 cells for 36h were (45.2 ± 9.1) ％ and (48.9 ± 8.0) ％,respectively.Compared with the blank group and the negative control group,the growth inhibition rate in the siRNA experimental group was lower (P ＜0.05),but the apoptosis rate was significantly higher (P ＜ 0.05).Transwell experiments confirmed that the numbers of invaded SMMC-7721 and HepG2 cells in the blank group and the negative control group and siRNA experimental group were (96.8±7.3),(95.6±5.4),(34.0±4.2) and (124.0 ±9.9),(121.6 ±7.0),(70.4±9.5),respectively,indicating that cell invasion in the siRNA experimental group was significantly suppressed (P ＜ 0.05).The expression of p-Akt was decreased (P ＜ 0.05) after down-regulating the expression of CRT for 36h.Conclusion CRT gene silencing by siRNA can inhibit the SMMC-7721 and HepG2 cell proliferation and invasion,but increase the cell apoptosis by regulating PI3K/Akt signal pathway.