OBJECTIVETo explore the features of various mediastinal lymphadenopathies using computed tomography perfusion (CTP).

METHODSCTP parameters (CTPs) of the selected mediastinal nodes from 59 patients with pathology-proven malignant lymph nodes and of those from 29 patients with clinically diagnosed or pathology-proven inflammatory lymphadenopathies were collected. Patients were divided into subgroups by etiology and phase of primary disease, including different pathological malignant nodes and diverse inflammatory nodes. CTPs were defined as blood flow (BF), blood volume (BV), mean transit time (MTT), permeability (PMB), and time to peak (TTP). Differences of CTPs were compared between malignant and benign nodes, and among subgroups, respectively.

RESULTSIn the mediastinum, no significant differences of CTPs were found between malignant and benign groups (all P>0.05), the same for subgroups of malignant nodes (all P>0.05). Acute lymphadenitis had higher BF and BV than chronic inflammatory, lymphoid tuberculosis, sarcoidosis and malignant nodes. The BF of malignant nodes was markedly slower than that of acute lymphadenitis (P=0.01), but faster than chronic inflammatory nodes (P=0.04) and sarcoidosis (P=0.03), with no significant difference compared with lymphoid tuberculosis. Pneumonia-complicated lymphoid tuberculosis showed the longest MTT while sarcoidosis displayed the shortest MTT, and inflammatory nodes, lymphoid tuberculosis without complicated pneumonia and malignant nodes had moderate MTT.

CONCLUSIONCTPs show promising potential in distinguishing various lymphadenopathies in the mediastinum, but more studies are needed to improve their specificity.

Adult ; Female ; Humans ; Lymph Nodes ; diagnostic imaging ; Lymphatic Diseases ; diagnostic imaging ; Male ; Mediastinal Diseases ; diagnostic imaging ; Perfusion ; Retrospective Studies ; Tomography, X-Ray Computed ; methods

Objective To observe the chemotactic role on umbilical vein endothelial cells of SMMC7721 hepatic(carcinoma) cells with angiopoietin gene expression in order to study the effects of angiopoietin on hepatocellular carcinoma angiogenesis.Methods Angiopoietin gene 1(Ang-1) fragment and Ang-2 fragment was transfected into SMMC7721 liver carcinoma cell line by Lipofectamine induced gene transfection technique.The chemotactic role of SMMC7721 liver carcinoma cell line on umbilical vein endothelial cells was observed through microchemotaxis analysis.Results The chemotactic response of the Umbilical vein endothelial cells was obviously improved with Ang-1 expression (P0.05).Conclusion Ang-1 is a chemotactic factor for vascular endothelial cell and a promoter for angiogenesis,whereas Ang2 does not show obvious chemotactic role.

Objective To explore the value of diffusion weighted imagine(DWI) and magnetic resonance angiography(MRA) for the clinical significance in acute cerebral infarction in the early stage.Method The results of DWI and MRA and traditional CT and routine MRI in 30 patients with acute cerebral infarction were analyzed.Result Ultra-acute and acute cerebral infarction could be shown on DWI,which may not be shown on CT and T 2.WI.The focus that were shown on T 2.WI were more clearly shown on DWI.Focus and degree of intracranial vascular lesion could be detected rapidly.Conclusion DWI and MRA are sensitive for diagnosis in the early stage of acute cerebral infarction.Cerebral constitution and cerebral vessels can be shown by DWI and MRA,thus offering reliable imaging data for thrombolytic therapy.

0.05) between the Zhuang and Han races.3. The sagittal diameter and shape of the spinal canal were not consistent with the external feature of the cord at C_3—C_6 vertebral levels where the sagittal diameter became physiologically reduced and at C_4 (12.92mm) it was the narrowest.4. Forms of the spinal canal (except C_1) were divided into four different types: a) circular, b) triangular, c) transitional and d) scalene.The shape of the spinal canal at C 1,2 the circular and it changed gradually from a semicircular to a triangular type at C_6 (81.31%). The triangular type then assumed the shape of a clam and polygon and become the circular type at T_6 (84.76%). The circular type became triangular again and assumed the shape of a clam at L_5 (99%). The triangular shape tended to assume the shape of a trefoil and then a bell from L_3 to L_5. The percentage of the trefoil shape of the lumbar vertebral canal was 5.02%.The results of the present study support the views of Eisenstein: i. e. the trefoil configuration is a common non-pathological condition, and is not necessarily dependent on, or related to, increasing age, osteophytosis or spinal stenosis. It is probably a developmental variation of normal anatomy.

This paper reported some problems in relation to the elderly renal transplant recipients.Before transplantation,hemodialysis,blood transfusion,water and electrolyte balance and corrections of acidosis.and treatment of diseases of the other systems should be emphasized.Method of treating the athe erotic change in the iliacartery during the operation,and selection of immunosuppressants and dosages were discussed.The prevention and treatment of the postoperative pulmonary infection,septicemia,steroid induct ulcerations of gestrointestinal tract and profound hemorrhage,serious diabetes mellitus and hypertensive encephalopathy after transplantation were also discussed in this paper.

Aged ; Esophagus ; Foreign Bodies ; complications ; diagnosis ; Hoarseness ; diagnosis ; etiology ; Humans ; Male

Objective To retrospectively investigate the clinical features and incidence trends of hypertriglyceridemic acute pancreatitis (HLAP) in Guangzhou First People's Hospital for 20 years.Methods The medical records of 1 362 patients,who were admitted to Guangzhou First People's Hospital with acute pancreatitis during January 1991 to December 2010,were reviewed and 99 patients met the HLAP criterion.These patients were divided into four groups according to years (1991 ～ 1995,1996 ～2000,2001 ～2005,and 2006 ～2010).The incidence and clinical features were compared among the 4 groups.Results Among the 99 patients,there were 61 males and 38 females,the mean age was (44 ± 12) years old,and young male was predominant in HLAP.HLAP accounted for 7.3％ of all AP patients,and the incidence was increased 1.5 times during the 20 years period (5.4％,5.7％,6.7％,and 8.3％ respectively).The serum amylase level was (513.3 ±462.7) mmol/L,TG level was (12.7 ± 7.0) mmol/L,Ranson score was (1.2 ± 1.1),CTSI score was 2.2 ± 1.1,incidence of SIRS was 36.4％,and the incidence of MODS was 18.2％,and the incidence of pancreatic pseudocyst was 5.1％,but the incidence and mortality of SAP was not changed with time.The incidence and mortality of SAP of HLAP were significantly higher than those of acute biliary pancreatitis (20.2％ vs 8.5％,6.1％ vs 2.8％).The rate of blood purification increased from 0 to 10.7％,and the hospital stay was decreased from 26 d to 14 d,and the difference between the two groups was statistically significant (P ＜ 0.05).Conclusions Incidence of HLAP is increased gradually,with a trend towards more severe disease,but the prognosis is improved.

ObjectiveTo investigate the influence on efficacy and quality of life of amisulpride in schizophrenia with predominantly negative symptoms.MethodsSeventy cases of schizophrenia with predominantly negative symptoms were randomly assigned to amisulpride group and clozapine group for 12weeks.The clinical efficacy and side effects were evaluated with SANS,BPRS and TESS before and 1,2,4,8,12 weeks after treatment respectively. GQOLI-74 were used to evaluate the patients' quality of life before and after drug administration.ResultsFor the last assessment,the score of BPRS decrease to 30.68 ±4.62 in amisulpride group,was significantly lower than the beginning(P＜0.01 ) ; the score of BPRS decrease to 31.31 ±4.78 in clozapine group,was significantly lower than the beginning (P ＜ 0.01 ).Two groups showed similar effects,with no significance.12weeks after treatment,the scores of emotional dull,poverty of thought,volition abulia,interest-social lack,attention dysfunction in amisulpride group were 12.31 ± 4.43,9.66 ± 3.07,8.91 ± 2.56,10.29 ± 2.68,5.58 ± 1.43 ; and the scores of emotional dull,poverty of thought,volition abulia,interest-social lack,attention dysfunction in clozapine group were 14.62 ± 4.27,9.32 ± 2.81,8.22 ± 2.60,9.54 ± 2.67,6.62 ± 1.59,and the efficacy of amisulpride in emotional dull and attention dysfunction were better than those of clozapine.And the scores of material life,physical function,psychological function,social function in amisulpride group were not higher than those in clozapine group(P＞ 0.05).And the scores of four domains in GQOLI-74 had been improved significantly in two groups(P＜0.01).The domains of physical function,psychological function,and social function in amisulpride was superior to clozapine(P＜0.01).The side effects were more in clozapine group than those in amisulpride group.ConclusionAmisulpride is as effective as clozapine for the treatment of schizophrenia with predominantly negative symptoms,but it has more advantage than clozapine to improve emotional dull,attention dysfunction and quality of life in schizophrenia with predominantly negative symptoms.

Objective To establish the quantitative detection of capsule associated protein 10 (CAP10)and virulence-associated DEAD-box RNA helicase 1(VAD1)genes in Cryptococcus neoformans (CN) and compare the diagnostic values of single gene test and combined gene test in CN meningitis.MethodsTwenty-three CN meningitis patients with fungal culture or ink staining or CN antigen detection positive in cerebrospinal fluid (CSF) were recruited and patients with craniocerebral trauma were recruited as controls.Standard plasmids were constructed using standard CN strain.Real time fluorescent quantitative polymerase chain reaction (RT-FQ-PCR) was established to detect the mRNA expressions of CAP10 and VAD1 genes in the CSF of patients with CN meningitis,which were compared with the results of CSF ink staining,fungal culture and antigen detection.The diagnostic values of single gene test and combined gene test were compared by chi square test.Results Among 23 CN meningitis patients,22 (95.6％) were CAP10 mRNA positive detected by RT-FQ-PCR,which was significantly higher than both ink staining (16/23,69.6％,x2 =4.167,P＜0.05) and fungal culture (15/23,65.2％,x2=5.143,P＜0.05),respectively; but not significant different from antigen detection (21/23,91.3％,x2=0.500,P＞0.05).There were also no statistical significant differences between combined detection of CAP 10 + VAD1 and CAP 10 or VAD1 single gene test (P＞0.05).ConclusionRT-FQ-PCR detection is successfully established using virulence genes as target,which is superior to the conventional methods.

In this research, Casuarina eguisetifolia Linn was used to verify the broadly suitability of DNA bar-codes in identification of Li-medicine plants and systematic development of species. The genomic DNA of 22 samples collected C. eguisetifolia and its adulterants were amplified by 4 pairs of primers respectively (ITS (inter-nal transcribed spacer), ITS2 (internal transcribed spacer 2), trnH-psbA , rbcL) and sequenced bi-directionally. Obtained sequences were assembled using CodonCode Aligner. The dates were analysised using MEGA5.1 in ac-cordance with the kimura 2-parameter (K2P) model. The neighbor-joining (NJ) phylogenetic trees were construct-ed. Our study demonstrated the efficacy of ITS/ITS2 to distinguish between C. eguisetifolia and other adulterants species at the molecular level. Comparative to the primer of trnH-psbA and rbcL, there was a obviously DNA gap. The NJ trees showed that the several species of Casuarina can be classified to same types to show a obvi-ously monophyly, which the nearest family was Guttiferae. Therefore, ITS/ITS2 regions can accurately distinguish the original plant of Li-medicine. The systematic evolution of Casuarina can be verified in the molecular level.