Cardiovascular disease caused by atherosclerosis has been the world′s primary cause of death. Studies have shown that early intervention in preclinical stage of atherosclerosis among children can reverse the disease and ultimately reduce the morbidity of atherosclerosis related diseases after they grow up,which is crucial to reduce and eliminate the harm of atherosclerosis.Now,the risk factors and detection methods of children′s preclinical atherosclero-sis were reviewed.

Objective To investigate the effects of laparoscopic tube sparing operation in the treatment of tubal ectopic pregnancy. Methods Clinical data of 56 cases of tubal pregnancy undergoing laparoscopic conservative treatment were retrospectively reviewed. Results Salpingectomy was required in 8 cases because the electrocoagulation had proven ineffective for the bleeding of operated area, whereas the tube sparing surgery was accomplished successfully in the remaining 48 cases, in 3 of which one treatment course of MTX was administered on account of recurrent episodes. Hysterosalpingography with iodized oil at 1～2 postoperative months in 47 cases receiving conservative surgical treatment revealed that, the involved oviduct was patent in 36 cases, unobstructed but not patent in 8 cases, and obstructed in 3 cases, while the contralateral oviduct (which had been previously resected in 3 cases) was patent in 34 cases, unobstructed but not patent in 7, and obstructed in 3. Conclusions Under proper conditions, laparoscopic tube sparing operation is effective in the treatment of tubal ectopic pregnancy.

Objective To discuss the effects of peritoneal dialysate (PDS) on the expression of aquaporin-1 in rat peritoneal mesothelial cells (RPMCs). Methods The in vitro cultured RPMCs were divided randomly into 4 groups, and stimulated respectively with 1640 culture medium containing 10% fetal calf serum (negative control), and three kinds of PDS (containing respectively 4.25% glucose, 4.25% mannitol or 1.5% glucose) for 3 hours. Indirect immunofluorescence assay (IFA) and flow cytometry (FCM)were employed to detect the expression of aquaporin-1 in RPMCs stimulated by different kind of PDS as above. Results Compared with negative control and the group with PDS containing 1.5% glucose, the expression of aquaporin-1 on the mesothelial cells of the group with PDS containing 4.25% glucose and that containing 4.25% mannitol was significantly up-regulated (P0.05). Conclusion PDS with higher osmotic pressure (OP) can enhance the expression of aquaporin-1 in RPMCs. For PDS with same OP (PDS containing 4.25% glucose or PDS containing 4.25% mannitol), those containing glucose can enhance the expression of aquaporin-1 more effectively than that PDS containing mannitol. This result indicates that glucose or its degradation products may be the independent factors in enhancing the expression of aquaporin-1 of RPMCs.

OBJECTIVE To evaluate the in vitro inhibitory effects of antibacterials in combination carbapenem against multiresistant Pseudomonas aeruginosa.METHODS The protocol was designed by checkboard method and the MIC of the two antibiotics in combination was determined by broth dilution method.FIC was calculated according to MIC results.RESULTS The MIC50 and MIC90 of eight kinds of antibiotics were lower to 1-16 times and 1-64 times,respectively.The synergistic and additive antibacterial activity was seen in ceftazidime with amikacin,piperacillin with tobramycin and azlocillin with sulbactam.The lomefloxacine with ampicillin and lomefloxacine with ceftriaxone were not correlated.CONCLUSIONS Antibacterial activity of ceftazidime combined with amikacin against carbapenem-multiresistant P.aeruginosa is the best.

Objective To elucidate the mechanism of accelerated apoptosis of monocytes in patients with lupus nephritis (LN). Methods 17 LN patients were enrolled in the study and 15 healthy volunteers were selected as controls. The expression of Faa and Fas ligand (FasL) was examined by immunofluorescent staining and flow cytometer analysis. The apoptosis and survival rate of monocytes cultured in vitro with human FasL (rHu-FasL) was analyzed by flow cytometer analysis and 5-diphenyl tetrazolium bromide (MTT) staining, respectively. Results Faa expression on monocytes was significantly higher in LN patients than that in healthy subjects. There was no difference of monocytes Fas expression between active LN patients and silent LN patients. There was no detectable FasL expression on monocytes from both LN patients and healthy controls. When monocytes cultured in vitro with rHu-FasL, there was a significantly increasing apoptosis and a decreasing survival rate of monocytes in LN patients as compared to healthy controls. Conclusion The up-regulated expression of functional Fas on monocytes may contribute to the accelerated apoptosis of monocytes in LN patients.

Objective To investigate the effect of vitamin E supplementation on oxidative stress in hemodialysis patients. Methods Fifty-six uremic patients undergoing hemodialysis (HD) were involved in this self-controlled study. The patients were observed for one month to evaluate the status of oxidative stress and then divided into two groups randomly. Group A patients (n=28) received 200mg/d of vitamin E and Group B patients (n=28) were treated with 400mg/d of vitamin E. Vitamin E was supplied for one month in both groups. The serum levels of advanced oxidation protein products (AOPP), malondialdehyde (MDA), vitamin E and activity of glutathione peroxidase (GSHPx) were measured at the initial and the end of vitamin E supplementation respectively. Results Serum levels of AOPP and MDA were significantly higher in HD patients compared with healthy controls (n=56, P

Objective To compare the Cosine and Dip methods in describing the rhythm of blood pressure(BP).Methods The BP was measured with non-traumatic ambulatory blood pressure monitoring(ABPM) for 24 h and analyzed with Cosine and Dip methods.The characters of the circadian rhythm of BP were studied and two methods were compared.Results The ratios of mesor and amplitude(A/M) of systolic blood pressure(SBP) and diastolic blood pressure(DBP) were(7.78?0.42)% and(7.98?0.39)%,respectively.The majority of acrophases of BP was on daytime,especially between 10∶00 am and 3∶00 pm.The amplitudes of acrophase in different periods analyzed with Cosine method were not significantly different each other,whereas analyzed with Dip method to be significant difference.Conclusion There is difference between Cosine and Dip methods in describing the rhythm of BP,since rhythms of acrophases of some cases were inaccurately described with Dip method.

Objective To evaluate the safety and effect of local resection of the duodenum for the treatment of gastrointestinal stromal tumors(GISTs). Methods In this study, 12 duodenal GIST cases in which tumors located more than 1.0 cm away from the major duodenal papilla, underwent simple local resection of the duodenum along with the tumors measuring at 4 cm in diameter or less. The clinical data were retrospectively analyzed. Results After simple local resection of the duodenum for GISTs, no stomal leak occurred and the margin was all negative. Pathologically tumors were all low risk grade. There was no recurrence during a follow-up of 9-38 months. Conclusions Local resection of the duodenum is safe and efficient in the treatment of duodenal GISTs should the tumors locat more than 1.0 cm away from the papilla.

Objective To observe whether bone marrow mesenchymal stem cells (MSCs) can promote the repair of IgA nephropathy and to explore its possible mechanism. Methods Sprague-Dawley rats were randomly divided into three groups which were MSCs injection group, normal saline(NS) infusion group and healthy control group. IgA nephropathy model was established by the improving method with BSA +SEB +CCl4 in former two groups. MSCs of SD rats were continuously cultured in vitro and identified with specific surface antigens by flow cytometry and osteogenic and adipogenic differentiation. MSCs were labeled with bromodeoxyuridine (BrdU) in vitro before transplanted. At 1st and 4th week after MSCs injection, the changes of body weight, urine protein, renal function, histopathology and IgA immunofluorescence were observed. MCP-1, TGF-β1 in urine were detected by ELISA. The expression of MCP-1, TGF-β1 in kidney were examined by RT-PCR. The cytokines and BrdU labeled MSCs were detected by immunohistochemistry to observe the disposition in kidney. Results At the end of the first week of MSCs transplantation, MSCs group urine protein (36.86±4.78) mg/24 h, serum creatinine (53.50±6.28) μmol/L, and the NS group urine protein (66.98±5.86) mg/24 h, serum creatinine (82.50±8.36) μmol/L, the differences between two groups were significant (P<0.05). At the same time, the content of MCP-1, TGF-β1 in urine and expression in renal tissue of MSCs group were obviously less than those of NS group (P <0.05). At the end of the 4th week, the body weight, histopatholngy, IgA immunofluorescence of MSCs group were remarkably improved as compared with those of NS group. The content of MCP-1, TGF-β1 in urine and expression in renal tissue, and renal pathological change in MSCs group had no significant differences as compared with those of healthy control group. As the time passed, the disposition of BrdU-labeled MSCs in kidney was taper. Conclusions MSCs injection contributes to renal repair in rat IgA nephropathy. The mechanism may partly depend on adjusting the excretion of cytokines in renal microenvironment and/or other functions rather than completely depend on their differentiation to renal cells.