Adolescent ; Cardiac Catheterization ; nursing ; Child ; Child, Preschool ; Female ; Heart Defects, Congenital ; nursing ; surgery ; Humans ; Infant ; Infant, Newborn ; Intraoperative Care ; Male ; Postoperative Care ; Preoperative Care

Adult ; Burns, Inhalation ; diagnostic imaging ; Explosions ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Radiography

Objective To compare curve-tip angiography guide wire (loach guide wire) and ultrasmooth hydrophilic guide wire (zebra guide wire) in selective common bile duct (CBD) cannulation of endoscopic retrograde cholangiopancreatography (ERCP). Methods A total of 196 patients were randomly assigned to loach guide wire group to receive cannulation guided by loach guide wire first ( n = 98 ) and zebra guide wire group to use zebra guide wire first ( n =98). If cannulation was not successful after 10 minutes, a further attempt was made for an additional 10 minutes using the alternative guide wire. If still not successful after 10 minutes, other cannulation accessories would be used. The primary and overall selective cannulation time, success rate, and post-procedure abdominal pain and serum amylase were assessed. Results The primary success rate of selective CBD cannulation was higher in the loach guide wire group (93.9%) than that in zebra guide wire group (86. 7%, P ＜0. 05), while there was no significant difference in cannulation time between 2 groups (P ＞ 0. 05 ). The cannulation success rate after crossover was higher in loach guide wire group (76. 9% ) than that in zebra guide wire group (0. 0%, P ＜0. 05). There was no significant difference in post-procedure serum amylase or occurrence rate of post ERCP pancreatitis between 2 groups (P ＞ 0. 05 ).Conclusion Loach guide wire is superior to zebra guide wire in ERCP selective CBD cannulation, which can replace zebra guide wire in difficult cannulation.

OBJECTIVETo study the role of promoter methylation of insulin-like growth factor binding protein 3 (IGFBP3) in intrauterine growth restriction (IUGR).

METHODSFifty neonates with IUGR and 30 healthy neonates were enrolled. The promoter methylation status of IGFBP3 in peripheral blood was evaluated by methylation-specific PCR (MSP) and high resolution melting (HRM) techniques.

RESULTSThe complete methylation rate, partial methylation rate and non-methylation rate of IGFBP3 promoter in the IUGR group was 4% (2/50), 40% (20/50) and 56% (28/50), respectively. The partial methylation rate and non-methylation rate of IGFBP3 promoter in the control group were 13% (4/30) and 87% (26/30), respectively. There were significant differences in the promoter methylation rate of IGFBP3 between the two groups (P<0.01).

CONCLUSIONSThe promoter methylation of IGFBP3 gene is associated with the pathogenesis of IUGR.

DNA Methylation ; Female ; Fetal Growth Retardation ; etiology ; genetics ; Humans ; Infant, Newborn ; Insulin-Like Growth Factor Binding Protein 3 ; genetics ; Male ; Promoter Regions, Genetic

OBJECTIVETo assess left ventricular (LV) geometry, LV diastolic and systolic function in maintenance hemodialysis uremic patients.

METHODSForty uremic patients and forty-five normal subjects were included in this study. LV volume, LV mass index (LVMI), relative wall thickness (RWT), LV mass and diastolic volume ratio (LVM/EDV) were measured. Mitral flow E velocity and A velocity ratio, deceleration time, mitral flow E velocity and mitral annulus Ea velocity ratio (E/Ea), pulmonary vein flow S velocity and D velocity ratio, atrial flow reversal velocity of pulmonary vein flow, mitral inflow propagation velocity, left atrium volume (LAV) and pulmonary artery systolic pressure (PASP) were determined for diastolic function evaluation. LV ejection fraction (LVEF) and single volume (SV) were derived from 3D echocardiography, systolic velocity of mitral valve annulus (Sa) by pulse tissue Doppler imaging (TDI) were used to evaluate systolic function. The time to peak systolic velocity (Ts) and early diastole velocity (Td) of LV 12 segments were measured using TDI. The maximal difference of Ts and Td (Ts-Dif and Td-Dif) were calculated to assess LV systolic and diastolic asynchrony.

RESULTSRWT, LVMI and LVM/EDV were significantly increased in uremic patients. There were 50% concentric, 17.5% eccentric hypertrophy and 17.5%concentric remodeling, respectively in uremic patients. The indices for LV diastolic function (E/Ea, LAV and PASP) were significantly higher in uremic patients than those in control subjects (P < 0.01). About 85% of the diastolic dysfunction in uremic patients presented as impaired relaxation pattern and 32.5% as increased filling pressure. LVEF and SV were similar between uremic patients and control subjects. Sa was significantly lower in uremic group than that in controls (P < 0.05). Ts-Dif was similar between the 2 groups while Td-Dif was significantly higher in uremic patients than control subjects (P < 0.05).

CONCLUSIONLV hypertrophy, LV mass increase and LV diastolic dysfunction were the major characteristic of myocardial injury in uremia patients.

Adult ; Aged ; Case-Control Studies ; Echocardiography ; Female ; Humans ; Male ; Middle Aged ; Renal Dialysis ; Uremia ; diagnostic imaging ; physiopathology ; therapy ; Ventricular Remodeling

OBJECTIVETo evaluate the therapeutic effect of embolization combined with endovascular stenting in the for treatment of intracranial pseudoaneurysms.

METHODSSeventeen patients with intracranial pseudoaneurysms received endovascular treatment with coil placement, NBCA glue embolization and endovascular stenting, and the therapeutic effect was evaluated according to the findings in immediate postoperative and follow-up angiography.

RESULTSFatal aneurysm rupture occurred in 1 case during embolization, and the surgical procedures were carried out smoothly in the remaining 16 cases. The aneurysm cavity dense coil packing ratio was 50% in coil embolization group and 42.9% in stent-assisted coil embolization group. In the follow-up for 3 months to 2 years, 2 patients in coil embolization group experienced pseudoaneurysm recurrence and were managed successfully with additional embolization with coils and stent. Aneurysms were not found postoperatively in stent-assisted coil embolization group.

CONCLUSIONEmbolization combined with endovascular stenting is a safe and effective treatment of intracranial pseudoaneurysms with minimized risk of recurrence.

Adolescent ; Adult ; Aneurysm, False ; therapy ; Embolization, Therapeutic ; Female ; Humans ; Intracranial Aneurysm ; therapy ; Male ; Middle Aged ; Stents ; Treatment Outcome ; Young Adult

OBJECTIVETo study how the combined effects of various differentiation inducers and heat stress on the expression of JWA protein in K562 cell, the relationship between JWA and Hsp70 expression, and the signal regulation mechanism possibly involved.

METHODSThe experimental model was established in K562 cells. Various directional differentiation inducers (TPA, Ara-C, hemin, adriamycin, ATRA and As(2)O(3)) were used alone or combined with heat shock treatment (42 degrees C, 2 h). Western blot was used for detecting expressions of JWA, Hsp70, heat stress factor 1 (HSF1) and HSF2.

RESULTS(1) The expressions of both JWA protein and Hsp70 were significantly up-regulated after K562 cells treated by TPA (100, 200 ng/ml) or adriamycin (4 x 10(-8) mol/L) 48 h, and followed by heat shock (42 degrees C, 2 h). However, the opposite effects were observed when the cells treated by hemin (3 x 10(-5) mol/L, 48 h), Ara-C (80 ng/ml, 48 h) and As(2)O(3) (1 x 10(-6) mol/L, 48 h) followed by 2 h heat shock. No obvious changes were found when the cells treated by ATRA (1 x 10(-6) mol/L, 48 h) alone or followed by heat shock. (2) Both the heat shock transcriptional factors HSF1 and HSF2 did not show any significant changes when K562 cells were treated with various differentiation inducers and followed by heat stress.

CONCLUSIONJWA not only takes part in the regulation of K562 cellular differentiation, but also of heat stress, it might be the co-target gene of several differentiation inducers and heat stress. The expression of Hsp70 seems not mediated by both HSF1 and HSF2 in K562 cells undergoing directional differentiation or heat stress treatment. JWA is likely to be a new signal molecule similar to Hsp70 signal pathways. The results show that JWA takes part in the mechanism of K562 cell response to heat stress.

Blotting, Western ; DNA-Binding Proteins ; analysis ; Flow Cytometry ; HSP70 Heat-Shock Proteins ; analysis ; Heat Shock Transcription Factors ; Heat-Shock Proteins ; analysis ; Hot Temperature ; Humans ; Intracellular Signaling Peptides and Proteins ; K562 Cells ; Transcription Factors ; analysis

OBJECTIVETo study the expression of JWA protein and heat shock protein (Hsp70), and to explore these relationship and the possible mechanism of JWA gene involved in induced differentiation and heat stress (42 degrees C) of K562 cells.

METHODSThe models of differentiation and heat stress of K562 cells were established. Western blot was used for detecting expressed proteins of JWA gene, Hsp70, heat shock factor (HSF1 and HSF2).

RESULTS(1) Under the condition of differentiations induced by TPA (100 ng/ml), hemin (3 x 10(-5) mol/L), Ara-C (80 ng/ml), adriamycin (4 x 10(-8) mol/L), ATRA (1 x 10(-6) mol/L) and As(2)O(3) (1 x 10(-6) mol/L) for 48 h respectively, the expression of JWA protein and Hsp70 were more significantly increased than control; the level of HSF2 protein was increased by inductions of hemin, Ara-C and adriamycin, respectively. (2) After heat exposure to 42 degrees C for 10, 20, 30, 45, 60, 90 min, and heat exposure to 39 degrees C, 42 degrees C, 45 degrees C, the trend of changing in expression of Hsp70 was similar to that of JWA protein, and HSF1 was expressed in earlier stage.

CONCLUSIONThe expression of JWA protein and Hsp70 were upregulated in induced differentiation and in heat stress, and the change of expression of JWA protein were similar to that of Hsp70, but the intracellular transduction signal pathways involved may be various. JWA might not be specifically related with both HSF1 and HSF2.

Antibiotics, Antineoplastic ; pharmacology ; Antimetabolites, Antineoplastic ; pharmacology ; Blotting, Western ; Cell Differentiation ; drug effects ; Cytarabine ; pharmacology ; DNA-Binding Proteins ; analysis ; Doxorubicin ; pharmacology ; HSP70 Heat-Shock Proteins ; analysis ; Heat Shock Transcription Factors ; Heat-Shock Proteins ; analysis ; Hemin ; pharmacology ; Hot Temperature ; Humans ; Intracellular Signaling Peptides and Proteins ; K562 Cells ; Transcription Factors ; analysis

Objective To explore the establishment of a rat model of acute radiation-induced liver injury and sig-nificance of the dynamic changes of TGF-β1 expression.Methods Forty healthy 6-week old male SD rats were randomly divided into model group (n=30) and control group (n=10).The right liver of rats in the model group was given a single dose of 25 Gy 6 MV X-ray irradiation.Histopathological examination using HE staining and transmission electron microsco-py were conducted to observe the liver pathological changes in rats at 3, 5, and 10 days after irradiation, serum TGF-β1 was detected, and relevant indicators of liver function ( ALT, AST, ALP) were determined.Statistical analysis was per-formed using SPSS 17.0 software.Results At 3, 5 and 10 days after irradiation, early pathological changes in the liver cells were observed by electron microscopy, the expression of TGF-β1 was gradually increased with the time prolongation, and significant differences were found between the model group and the control group at different time points (P<0.05). The light microscopic observation of liver tissues did not show significant differences between the control group and model group.The liver ALT, AST, ALP at different time points did not show significant differences between the two groups ( P>0.05).Conclusion Electron microscopy can be used to evaluate the early changes of radiation-induced liver injury, pri-or to the alterations visible by routine light microscopy.TGF-β1 can be used to predict the degree of radiation-induced liver injury, and may be used as a sensitive serum cytokine in predicting the degree of radiation-induced acute liver injury.

OBJECTIVETo explore the effect of Jiangtang Xiaozhi capsule (JXC) on morphological changes of islets and liver at rat model of type 2 diabetic mellitus and provide the experimental basis for the clinical therapy of type 2 diabetic mellitus.

METHODWister rats were fed on a diet enriched in fat and glucose to induce insulin resistan, the rats were injected intrapertoneally with a low-dose streptozotocin (STZ) twice (25 mg x kg(-1)) to induce hyperglycemia, so the successful rat model of type 2 diabetes were established. The experimental rats were divided into model group, high dose JXC group, middle dose JXC group, low dose JXC group, Erjiashuanggua group, Jinqijiangtang group and normal control group. After all the treatment groups received their own medicine for two months, all the rats were sacrificed and morphological examination on their islets and livers were performed.

RESULTFatty liver in various degrees was seen in the model group and all the treatment groups, but the liver steatosis in middle and low dose JXC groups was significantly milder than that in model group (P < 0.05). Islets in the high dose JXC group were significantly more than that in the model group (P < 0.05).

CONCLUSIONJXC can improve significantly the pathological change in islets and liver steatosis at rat model of type 2 diabetic mellitus.

Animals ; Diabetes Mellitus, Experimental ; drug therapy ; pathology ; Drugs, Chinese Herbal ; pharmacology ; Female ; Islets of Langerhans ; drug effects ; pathology ; Liver ; drug effects ; pathology ; Male ; Microscopy ; Rats ; Rats, Wistar