Objective To investigate the value of lapa ro scopic surgery in the diagnosis and treatment of bile duct diseases in newborns and infants. Methods Clinical records of 9 newborns or infants with bile duct diseases diagnosed and treated under laparoscope from January 20 03 to August 2004 in this hospital were reviewed retrospectively. Resul ts Laparoscopic exploration in the 9 cases found 2 cases of congenital choledochal cyst, 5 cases of biliary atresia, 1 case of cholestasis, and 1 case of congenital bile duct hypoplasia. Cholangiography was successfully performed i n 8 cases. Two patients with choledochal cyst received an excision of the cyst a nd Roux-en-Y hepatico-jejunostomy. Among the 5 patients with biliary atresia, he patic porto-enterostomy was performed via open approach in 3 patients and via la paroscopic approach in 1, and surgery was refused in 1 patient. Open hepatic por to-enterostomy was also used in the patient with bile duct hypoplasia. The patie nt with cholestasis underwent a biliary tract irrigation. Conclusions Laparoscopy is simple and reliable in the diagnosis of bile duct disease s in newborns and infants. For the treatment of bile duct diseases, laparoscopic techniques have advantages of minimal invasion, good cosmetic results, less blo od loss, quick recovery, and reliable clinical effects.

Objective To explore the feasibility of tw o- port laparoscopy in the treatment of congenital hypertrophic pyloric stenosis. Methods A total of 21 infants with confirmatively diagnosed con genital hypertrophic pyloric stenosis were given a two-port laparoscopic pylorom yotomy. The procedure was performed using two trocars: a 5 mm trocar at the lowe r border of the umbilical ring was placed for the insertion of camera, and a 3 m m trocar was introduced below the costal margin at the midclavicular line to pas s the hook electrode and curved forceps. Results No conversion s to open surgery were required. The operation time was 23~65 min (mean, 31.3 mi n). The patients were discharged from hospital at 4~6 postoperative days. No com plications occurred. Follow-up for 2~7 months (mean, 3.2 months) showed a norma l development in all the 21 patients. Conclusions Two-port lap aroscopic treameat for congenital hypertrophic pyloric stenosis in infants is ef fective.

Objective To explore the causes and treatment of the complications after laparoscopic surgery in neonate and infants.Methods From January 2003 to June 2007,totally 287 neonates and infants received laparoscopic surgeries in our hospital, 10 of them developed postoperative complications.Results The complications included 7 cases of gastric mucosa rupture during pyloric resection,1 case of delayed rupture of the pylorus,1 case of intestinal malrotation complicated with duodenal stenosis,and 1 case of incisional hernia.The former 9 cases were cured by open surgery,and the last one recovered spontaneously in 4 months. Conclusions Mucosarupture caused by pyloric resection is the most common complication after laparoscopic surgery in neonates and infants,open surgery should be performed in such a situation.Delayed rupture of the bowel after laparoscopic surgery can be potentially fatal,and should be treated as soon as possible.Intestinal malrotation may lead to a high rate of malformation,which can be avoided by early diagnosis and treatment.

OBJECTIVE: To improve the quality, efficiency and management of hospital pharmacy dispensing work. METHODS: Following the principle of logistics, the drug dispensing path was planned as a whole to reduce the ineffective drug handling, and the dispensing process was designed and machines were reasonable utilized. RESULT & CONCLUSION: Improving pharmacy dispensing work in line with the principle of logistics is conducive to the improving of both quality and efficiency of dispensing work, strengthening of management and lowering of labor intensity.

Objective To compare the differences in the use of effects of improved and traditional abdominal positioning locator card in the empty nest elderly diabetic patients with insulin pen injection. Methods 100 discharged cases of empty nest elderly diabetic patients with insulin treated were enrolled. They were divided into two groups by random digital table method, 50 cases in traditional positioning card injection group and 50 cases in improved positioning card injection group. Usage rate of two sets of locator cart, adverse reactions in local skin injection and blood glucose control were observed for 12 months. Results After 12 months, 44 cases occupied 88%in improved positioning card injection group were not about using positioning card while 30 cases occupied 60%in traditional positioning card injection group. The difference was statistical significance (P<0.05). After 12 months, only 3 cases in improved positioning card injection group appeared local injection site reactions which was significantly lower than 31 cases in the traditional positioning card injection group, and the difference was statistically significant (P<0.05);12 months later, fasting blood glucose (FBG), 2 hour postprandial blood glucose (2 h PBG), glycosylated hemoglobin (HbA 1c) of improved positioning card injection group and traditional positioning card injection group [(7.0 ±1.5) mmol/L and(7.8±1.9)mmol/L,(10.7±2.1)mmol/L and(12.3±2.2)mmol/L,(7.1±1.3)% and(7.7±1.5)%] were all decreased significantly than before. The difference was statistically significant (P<0.05). FBG,2 h PBG, HbA1c of improved positioning card injection group were decreased more significantly than that in traditional positioning card injection group and the difference was statistically significant (P<0.05). The standard rate of HbA1c [64% (32/50)] in improved positioning card injection group was higher than that in traditional positioning card injection group [42%(21/50)]. The difference was statistically significant (P<0.05). Conclusions The modified abdominal injection locator card can improve patients′positioning card usage rate, optimize insulin injection technique, reduce the occurrence of adverse reactions in local skin injection and improve the control of blood glucose.

Objective To evaluate the effect of aldosterone (Ald) on glomerular mesangial cells apoptosis and to explore the possible mechanisms.Methods Twenty-four Sprngue-Dawley rats were subcutaneously embedded with osmotic mini-pumps and randomly divided into 3 groups.Aldosterone (1.5 μg/h) was administrated subcutaneouly by osmotic mini-pumps in Ald group,eplerenone (Epl,100 mg·kg-1·d-1) and Ald (1.5 μg/h) was given to Epl group.And normal saline was used in control group (Con group).Systolic blood pressure and urinary albumin excretion rate (UAER) were detected on day 0,7,14,21,28.Blood and kidney samples were harvested on day 28.Plasma creatinine,potassium and aldosterone were measured.Renal paraffin sections were stained by PAS and the morphological changes were evaluated by light microscopy.Apoptosis index of mesangial cells were detected by TUNEL assay.The glomerular mesangial cells (MCs) were cultured in a DMEM-F12 media.MCs apoptosis was evaluated by staining cells with Annexin V and propidium iodide (PI) using flow cytometer.Expression of Bcl-2 and Bax mRNA was examined by RT-PCR.The protein level of Bad or phospho-Bad was measured by Western blotting.Results Ald-infused rats developed hyperaldosteronemia and hypokalemia.Rats in Ald group exhibited significant hypertension and marked albuminuria.Ald group rats showed increased number of TUNEL-positive mesangial cells when compared with control rats (P＜0.05).Aldosterone induced mesangial cells apoptosis in a time-dependent manner.Expression of Bcl-2 mRNA was decreased but Bax mRNA was increased in aldosterone treated MCs compared to that in Con group (P＜0.05).Aldosterone promoted dephosphorylation of cytosolic phospho-Bad compared with vehicle treated cells (P＜ 0.05).However,eplerenone attenuated these effects of aldosterone.Conclusion Aldosterone directly promotes mesangial cells apoptosis,and eplerenone can attenuate this effect of aldosterone.Dephosphorylation of cytosolic phospho-Bad may be the key role in the progression of mesangial cells apoptosis induced by aldosterone.

Objective To evaluate the effect of angiotensin Ⅱ (Ang Ⅱ ) on the change of nephrin phosphorylation both in Ang Ⅱ-infused rat model and cultured podocytes.Methods Thirty Wistar rats were subcutaneously embedded with osmotic minipumps and randomly divided into 3 groups according to receiving either Ang Ⅱ at a dose of 400 ng· kg-1· min-1 or Ang Ⅱ +telmisartan at a dose of 3 mg·kg-1 ·d-1,or normal saline as a control group.Blood pressure and 24-hour urinary albumin were measured at 0 d,7 d,14 d,21 d and 28 d of the experiment.Renal histomorphology was evaluated through electron microscopy.The concentrations of Ang Ⅱ both in blood plasma and kidney were detected by radioimmunoassay.In vitro,cultured murine podocytes were exposed to Ang Ⅱ (10-6 mol/L) pretreated with or without losartan (10-5 mol/L) for different time periods.Nephrin and its phosphorylation expression were analyzed by Western blotting.The distribution of F-actin was presented by FITC-phallodin labeling.The change in phenomenon of F-actin was evaluated by cortical F-actin score index (CFS).Results (1)Ang Ⅱ-infused rats exhibited increased Ang Ⅱ concentration,significant hypertension and marked albuminuria.(2)In Ang Ⅱ-infusion group,nephrin expression was decreased (P＜0.05).Ang Ⅱ-receiving rats displayed diminished phosphorylation of nephrin.(3)In vitro,the phosphorylation of nephrin was significantly reduced after Ang Ⅱ stimulation for 3-6 hours (P＜0.05).(4)Ang Ⅱ stimulatation resulted in irregularly arrangement of F-actin followed by the redistribution of F-actin to podocyte periphery and formation of F-actin ring,in which the CFS obviously increased compared to control (P＜0.05).Conclusions Phosphorylation of nephrin is important for the survival status of podocytes.Ang Ⅱ-induced nephrin dephosphorylation may be an important molecular mechanism for Ang Ⅱ-induced podocyte cytoskeleton rearrangement and foot process effacement.

Congenital anorectal malformation (ARM) is one of the most common gastrointestinal congenital diseases, accounting for 1/4 in digestive tract malformation, and is one of the congenital malformations in routine surveillance by the World Health Organization. Because of the variety of risk factors and the complexity of the pathological changes, etiology of ARM is still not clear. It is mostly considered that ARM is resulted from hereditary factors and environmental factors in the development of embryogenesis. Through animal experiments, scholars have found that Hox, Shh, Fgf, Wnt, Cdx and TCF4, Eph and ephrin play crucial role during the development of digestive tract. When the genes/signaling pathway dysfunction occurs, ARM may happen. In addition, ARM is related to the external factors in pregnancy. Because of the complexity of related factors in the development of human embryogenesis, the research progress of human ARM is very slow. This paper reviews relevant literatures in genetic factors and environmental factors, in order to provide the theoretical basis for the treatment and prevention of ARM.
Anal Canal ; abnormalities ; Anorectal Malformations ; Anus, Imperforate ; Female ; Humans ; Pregnancy ; Rectum ; abnormalities

ObjectiveTo investigate whether aldosterone infusion induces glomerular or podocyte injury in rats and to evaluate the effects of eplerenoen (EPL), andodipine (CCB) and telmisartan (ARB) on aldosterone- induced injury. MethodsThirty male Sprague-Dawley rats were divided into 5 groups: control, subcutaneous infusion of aldosterone (1.5 μg/h, ALD group) and aldosterone infusion plus eplerenone (100 mg·kg-1·d-1, EPL group), amlodipine(10 nag·kg-1·d-1 CCB group), telmisartan (3 mg·kg-1·d-1, ARB group), respectively. Systolic blood pressure(SBP) and urinary albumin excretion ratio(UAER) were measured at day 0, 7, 14, 21, 28. Blood samples were harvested to detect plasma angiotensin Ⅱ, plasma aldosterone, serum sodium, serum potassium and serum creatinine at day 28. Glomerular damge was quantified by morphological glomerular injury score (GIS). Immunohistochemistry and RT-PCR were performed to evaluate podocyte lesion, and apoptosis ratio of pedocyte (ARP) in a glomerular cross section was analyzed by TUNEL. ResultsALD infusion progressively increased SBP and UAER compared with CTL (P＜0.01). SBP was significantly reduced in EPL, CCB or ARB-treated animals, meanwhile, UAER was decreased in EPL and ARB group, but not in CCB group. The ALD-infused rats exibited hypernatremia and hypopotassaemia, which were blocked by EPL adminstration but not by CCB or ARB treatment. ARB group had a significant increase in plasma angiotensin Ⅱ compared with ALD, CCB and EPL groups(P＜0.01). The ALD-infused animals developed hyperaldosteronemia compared with CTL, but with no difference of plasma aldosterone among ALD, EPL, CCB and ARB-treated rats. Treatment with EPL prevented an increase of GIS and ARP compared with CCB and ARB (P＜0.05, P＜0.01). Protein and mRNA expression of nephfin was up-regulated in ALD group (P＜ 0.01), but was significantly prevented by EPL treatment(P＜0.01), whereas CCB and ARB therapy had no such effect. Conclusion ALD infusion significantly induces glomerular and pedocyte injury which is blocked by EPL but not by CCB or ARB independently on systemic hemodynamics.

The present study investigated the enhanced radiosensitivity of U-251 cells induced by sodium butyrate (NaB) and its possible mechanisms. Increased radiosensitivity of U251 cells was examined by clonogenic cell survival assays. The expression of Ku70 mRNA and protein was detected by using RT-PCR and Western blotting respectively. γ-H2AX foci were measured at different time points after ionizing irradiation alone or combined with NaB treatment. The results showed that cell survival rate was significantly reduced, both D0 and Dq values were decreased (D0: 1.43 Gy vs. 1.76 Gy; Dq: 1.22 Gy vs. 2.05 Gy) after the combined treatment as compared with irradiation alone, and sensitivity enhancing ratio (SER) reached 1.23. The average number of γ-H2AX foci per cell receiving the combined treatment was significantly increased at different time points, and the expression levels of Ku70 mRNA and protein were suppressed by NaB in a dose-dependent manner. It was concluded that enhanced radiosensitivity induced by NaB involves an inhibited expression of Ku70 and an increase in γ-H2AX foci, which suggests decreased ability in DSB repair.