Objective To analyze and compare the imaging features of chromophobe cell renal carcinoma(CCRC)with pathologic findings in order to improve the diagnostic accuracy.Methods The data of CT and MRI of 12 patients with CCRC were reviewed retrospectively.Ten patients underwent CT examination,including precontrast scan,the contrast eortieomedullary phase scan and the parenchymal phase scan(one patient without corticomedullary phase scan).Two patients underwent MR examination including precontrast T_1WI,T_2WI and enhanced T_1WI of the corticomedullary phase and the parenchymal phase.Results Four lesions located in left kidney and eight in right kidney.Maximum diameter of lesions ranged from 24 mm to 125 mm,average 56.7 ram.Homogenous density was observed in six lesions of ten on unenhanced CT scan and five lesions had homogenous enhancement on enhanced CT scan,which was due to the less incidence of necrosis,liquefaction and hemorrhage on pathologic findings.Nine Lesions showed hyperdense compared with renal medulla but the density was lower than renal cortex on the corticomedullary phase.The enhanced degree was positively correlated with microvessel density(MVD).All ten lesions became hypodense compared with renal medulla on the parenchymal phase scan.Central stellate scar was found in two big lesions and psudocapsula were observed in four lesions confirmed by pathology.Two patients underwent MRI examination.Compared with medulla,the two lesions showed hyperintense on unenhanced T_1WI and obviously hypointense on unenhaneed T_2WI.The enhancement pattern of them was similar to CT. Conclusion The imaging features of CCRC,such as homogeneity,special enhancement pattern and distinct hypointensity on T_2WI,help to differentiate CCRC from other renal tumors.

Objective To analyse the high-dose dexamethasone suppression test(HDDST)-related differences in the clinical and biochemical features of the patients with Cushing's disease Methods Cases were drawn from 60 consecutive patients with Cushing's disease,who were then divided into two groups according to the response to the HDDST.The clinical and biochemical features between two groups were compared.Results(1) Of the 60 patients with Cushing's disease,23.3%(14/60)of patients(group A)did not yield results of suppression with the HDDST,and the others(group B)did.No difference was found in the age[(33.8?10.4 vs 36.2?11.2)years]and duration of illness[(2.1?1.6 vs 3.9?3.1)years]between two groups.(2)In clinical features,the patients in group A were more likely to have edema of lower limbs(64.3% vs 32.6%),hypokalemia (71.4% vs 28.3%),secondary diabetes(57.1% vs 26.1%)and purple striae(85.7% vs 54.3%,all P

Ulcerative colitis (UC) is associated with intestinal immune imbalance and inflammatory response. Because dehydrolovastatin (DLVT), a derivative of lovastatin, has been recently shown to inhibit inflammation and relieve immune arthritis induced by chemical stimuli, we studied its effect and possible mechanism on UC induced by dextran sulfate sodium. The BALB/c mice were classified into six groups: normal control group, model group, DLVT high dose group, DLVT low dose group, salazosulfapyridine (SASP) group and lovastatin (LVT) group. The disease activity indices of UC and pathological changes were investigated. The myeloperoxidase (MPO) activity in colon tissue and inflammatory factors such as IL-6, IL-10, IL-17, and TNF-α in the serum were analyzed by ELISA, while the expression of NF-κB p65 protein in colon tissue was detected by immunohistochemistry and western blot. DLVT relieved the disease activity indices and pathological damage of the UC mice. Furthermore, DLVT significantly decreased MPO activity and improved the imbalance of inflammatory cytokines through inhibiting the expression of NF-κB p65. Meanwhile, the positive drug of SASP has a similar effect to DLVT, but the effect of DLVT in both decreasing IL-17, TNF-α, and increasing IL-10 was significantly stronger than that of SASP. These results suggest that DLVT may ameliorates the symptoms of UC.

Ulcerative colitis (UC) is associated with intestinal immune imbalance and inflammatory response. Because dehydrolovastatin (DLVT), a derivative of lovastatin, has been recently shown to inhibit inflammation and relieve immune arthritis induced by chemical stimuli, we studied its effect and possible mechanism on UC induced by dextran sulfate sodium. The BALB/c mice were classified into six groups: normal control group, model group, DLVT high dose group, DLVT low dose group, salazosulfapyridine (SASP) group and lovastatin (LVT) group. The disease activity indices of UC and pathological changes were investigated. The myeloperoxidase (MPO) activity in colon tissue and inflammatory factors such as IL-6, IL-10, IL-17, and TNF-α in the serum were analyzed by ELISA, while the expression of NF-κB p65 protein in colon tissue was detected by immunohistochemistry and western blot. DLVT relieved the disease activity indices and pathological damage of the UC mice. Furthermore, DLVT significantly decreased MPO activity and improved the imbalance of inflammatory cytokines through inhibiting the expression of NF-κB p65. Meanwhile, the positive drug of SASP has a similar effect to DLVT, but the effect of DLVT in both decreasing IL-17, TNF-α, and increasing IL-10 was significantly stronger than that of SASP. These results suggest that DLVT may ameliorates the symptoms of UC.

OBJECTIVETo study the expression levels of monokine induced by interferon-gama; (Mig) mRNA and its association with HBV DNA and alanine aminotransferase (ALT) in patients with chronic hepatitis B.

METHODSThe level of Mig mRNA in peripheral blood mononuclear cells (PBMCs) was dynamically detected with real-time quantitative PCR, and the ratio of chemokine/GAPDH was considered to represent the final chemokine level. The plasma level of was measured by enzyme-linked immunosorbent assay (ELISA).

RESULTSThe mean level of Mig mRNA in PBMCs of the patients with chronic hepatitis B was 0.6883-/+0.0693, which was significantly higher than that in normal controls (P<0.001). The plasma Mig level in the patients was 609.6-/+73.8 pg/ml, also significantly higher than that in normal controls (P<0.05). In patients with chronic hepatitis B, the level of Mig mRNA in the PBMCs was significantly correlated with plasma Mig level (r=0.7157, P<0.001), and plasma Mig level was correlated with plasma ALT level (r=0.7220, P<0.001) and plasma HBV DNA level (r=0.7266, P<0.001).

CONCLUSIONBoth the expression of Mig mRNA in PBMCs and plasma Mig concentration are elevated in patients with chronic hepatitis B. Mig plays an important role in migration of the inflammatory cells to the liver and mediates the development of chronic hepatitis B.

Adolescent ; Adult ; Chemokine CXCL9 ; blood ; genetics ; Enzyme-Linked Immunosorbent Assay ; Female ; Hepatitis B, Chronic ; blood ; Humans ; Leukocytes, Mononuclear ; metabolism ; Male ; Middle Aged ; RNA, Messenger ; blood ; genetics ; Reverse Transcriptase Polymerase Chain Reaction

OBJECTIVESTo study the etiology of persistent hematospermia and to evaluate the efficacy of transrectal ultrasonography (TRUS)-guided transperineal needle aspiration and irrigation for diagnosis and treatment of persistent hematospermia.

METHODSTwelve patients were included in the study, with a mean age of (36.4 +/- 10.8) years old, and a mean duration of the disease of (13.9 +/- 6.4) months. After the expressed prostatic secretion (EPS) by prostatic massage was cultured, patients with recurrent hematospermia received TRUS-guided transperineal needle aspiration for seminal vesicle fluid (SVF), which was sent for bacteriological and cytological examination. If the EPS culture were positive, certain antibiotics according to the drug sensitivity assay were injected into the abnormal seminal vesicle(s) via TRUS-guided transperineal needle puncture. The treatment would be repeated one month later if the patients still had hematospermia. The patients were followed up every three months.

RESULTSAbnormal images were found in left seminal vesicle (SV) in 4 cases, right in 3 cases, bilateral in 2 cases, and no abnormal findings in 3 cases. The abnormal findings included: 7 cases of SV and/or ejaculatory duct dilation, 3 cases of thickening SV wall, 3 cases of calcification or calculi of SV, and 1 case of Müllerian duct cyst. SVF cultures were positive in 7 cases: methicillin-resistant Staphylococcus aureus (MRSA) 4 cases, methicillin-resistant coagulase-negative Staphylococcus (MRCNS), E. Coli, Proteus mirabilis 1 case, respectively. In five of these 7 cases, bacteriological cultures of SVF and EPS showed the same results. All patients were treated by TRUS-guided transperineal injection of certain antibiotics into SV. Seven cases were injected once, 5 cases twice. The mean follow-up period of 10 patients was (16.7 +/- 5.9) months. Hematospermia disappeared in 6 cases.

CONCLUSIONSSV infection of bacteria, especially infection of the drug resistant strains was one of the main causes of persistent hematospermia. The difficulties in treatment of persistent hematospermia were due to infection of drug resistant bacteria, calcification or calculi of SV, obstruction of ejaculatory duct. TRUS-guided transperineal aspiration of SVF was helpful to the etiologic diagnosis of persistent hematospermia.

Adult ; Drug Resistance, Bacterial ; Genital Diseases, Male ; etiology ; microbiology ; Humans ; Male ; Middle Aged ; Pilot Projects ; Seminal Vesicles ; microbiology ; Ultrasound, High-Intensity Focused, Transrectal

OBJECTIVEB cell multiplication plays a key role in infections mononucleosis. The present study was designed to detect the expression of B-lymphocyte stimulator (BLyS) mRNA in peripheral blood using real-time fluorescence quantitative polymerase chain reaction (RFQ-PCR) in children with infectious mononucleosis in order to explore the role of BLys in this disorder.

METHODSSpecific primers and TaqMan probes of BLyS were designed, and fluorescence of the PCR products were detected continuously during amplification. According to the standard curves created by plasmid DNA, the expression level of target genes in clinical samples were calculated using Stata Software version 8.0, and the results were presented as the ratio of copies of target gene mRNA to beta2 microglobulin (beta2M) mRNA copies. BLyS mRNA expression in peripheral blood was measured by RFQ-PCR in 18 children with infectious mononucleosis and the results were compared with those measured in 15 healthy controls.

RESULTSThe range of target gene mRNA detected by REQ-PCR was from 109 ng/L to 101 ng/L. The coefficient of variation for intra-experimental and inter-experimental reproducibility ranged from 1.88% to 5.89% and 6.32% to 12.34%, respectively. BLyS mRNA expression in peripheral blood in children with infectious mononucleosis were significantly higher than that in controls (1.65+/-0.10 vs 0.56+/-0.08; P < 0.01).

CONCLUSIONSRFQ-PCR has a high sensitivity and reproducibility for the measurement of BLyS mRNA expression. BLyS may be involved in the development of infectious mononucleosis.

B-Cell Activating Factor ; genetics ; Child ; Child, Preschool ; Female ; Fluorescence ; Humans ; Infectious Mononucleosis ; etiology ; metabolism ; Male ; Polymerase Chain Reaction ; methods ; RNA, Messenger ; analysis

OBJECTIVESTo explore the relationships between the peripheral blood levels of CD61, CD63, PAC-1 and the incidence of acute rejection and tubular necrosis after renal transplantation, and recovery of the graft function.

METHODSThe peripheral blood levels of CD61, CD63, and PAC-1 of 86 patients with uremia in different stages before and after transplantations were analyzed by flow cytometry. The patients were divided into three groups: (1) twenty-nine patients with normal grafts function, (2) hirty with acute rejection and (3) twenty-seven with acute tubular necrosis. The patients with acute rejection were randomly divided into treatment group with anticoagulants and cntrol group.

RESULTSThe peripheral blood levels of CD61, CD63 and PAC-1 significantly increased (P < 0.05) in the patients with acute rejection, in comparison with those with normal grafts function and those with acute tubular necrosis. The peripheral blood levels of CD61, CD63 and PAC-1 in patients with acute rejection in anticoagulants therapy was lower, recovery time of the grafts function was shorter, one-year survival rates of patients and grafts were higher, as compared with those of controls.

CONCLUSIONSThe patients with acute rejection have significantly high peripheral blood levels of CD61, CD63 and PAC-1 before transplantation, however, these values in patients with acute tubular necrosis are not high, this suggesting that acute rejection might relate to platelet activation, while acute tubular necrosis might not relate to it. After anticoagulants therapy in patients with acute rejection, the grafts function might recover faster and their one-year survival rates and grafts might be higher in those with CD61, CD63 and PAC-1 decreasing remarkably.

Adult ; Aged ; Antigens, CD ; blood ; Dual Specificity Phosphatase 2 ; Female ; Graft Rejection ; Humans ; Integrin beta3 ; blood ; Kidney ; physiopathology ; Kidney Transplantation ; Male ; Middle Aged ; Platelet Activation ; Platelet Membrane Glycoproteins ; Protein Phosphatase 2 ; Protein Tyrosine Phosphatases ; blood ; Tetraspanin 30

A photochromic sensing platform composing of emeraldine salt of polyaniline ( ES-PANI ) and titanium dioxide nanoparticles ( TiO2 NPs) for visual detection of trace copper was developed. Under ultraviolet light irradiation, the greenish ES-PANI could be oxidized to dark blue pernigraniline salt by the photogenerated hole of excited TiO2 NPs. In the presence of Cu2+, a light yellow leucoemeraldine salt was visually observed. The overall mechanism of color change was verified to be corresponding to the different redox states of PANI regulated by Cu species during the photochromic process. By integrating the advantages of both photoelectric property and visual detection, the redox reaction-based sensing mechanism led to a good sensitivity and high selectivity in the detection of Cu2+ with the detection limit of 0. 4 μmol/L. Besides the naked eye, two color recognition methods including reading mean green intensities in Photoshop and recording ultraviolet absorbance in microplate reader were also studied. This method was successfully applied to Cu2+ detection in human hair with satisfactory recoveries. More significantly, this sensing platform was really simple, low-cost and able to detect an array of analytes within several minutes without requiring sophisticated equipment. This photoelectron-regulated colorimetric strategy provided a novel concept for the design of visual sensing platform, and could develop the portable test kits for rapid detection in clinical diagnosis.

Objective To analyze the epidemiological characteristics of Japanese encephalitis (JE) in Zhejiang Province from 2007 to 2016 for developing the measures of control and prevention. Methods The data were collected from national notifiable diseases registry system (NNDRS) and case-based JE surveillance system (JESS) from 2007 to 2016, and they were analyzed through descriptive epidemiological method and Microsoft Office Excel 2010. Results From 2007 to 2016, a total of 595 JE cases were reported in Zhejiang Province, with an average annual incidence of 0.114 per 100000 population, among which, 559 (93.95%) were laboratory confirmed. During the ten years, 20 cases died and the average annual case fatality rate was 3.36% . Cases were distributed mainly in Wenzhou, Ningbo and Taizhou Cities, which accounting for 54.79% of the total.The peak months were July, accounting for 86.89% of all the cases.And 85.71% of all the cases were in the age of 0-14 years and 47.73% were scattered children.And 22.77% of the JE cases were vaccinated but 14.01% of them did not complete the whole course.And 77.23% of the cases did not have the experience of vaccination or unknown.Conclusion The incidence of JE is decreasing. The occurrence of JE is sporadic with distinct seasonal peak and mainly concentrating in young-age children.