Objective To explore the mechanism of synthesis metabolism intensified by human growth hormone(GH) on the basis of total parenteral nutrition(TPN) for postoperative gastrointestinal carcinoma patients.Methods Totally 94 cases of postoperative gastrointestinal carcinoma patients were randomly divided into TPN group and TPN+GH group.The levels of TNF-?,IL-1,IL-6,CRP were detected on postoperative day 1,3 and 7.Results The levels of TNF-?,IL-1,IL-6,CRP of TPN+GH group were significantly lower than those of TPN group(P

Forty-two patients with type 2 diabetes mellitus (DM) were refered to 3 groups:type 2 DM without diabetic nephropathy (DN),type 2 DM with DN in the initial stage and type 2 DM with DN in the clinical stage.Ten healthy subjects were served as control group.Plasma adrenomedullin (ADM),urinary?_1- microglobulin (MG) and?_2-MG were detected.The results showed that the level of plasma ADM rose gradually with the development of DN and was positively correlated with markers of tubulointerstiial injury such as urinary?_1- MG and?_2-MG (both P

Objective To report a retroperitoneal laparoscopic surgery for ureteropelvic junction obstruction (UPJO) by double renal veins.Methods A 28-year-old male patient with left low back pain for 6 months was diagnosed as left hydronephrosis and UPJO.A ureteral stent had been placed 3 months before and failed to improve hydronephrosis,so the ureteral stent was pulled out.CT scan showed that left UPJ went through the two renal veins,suggesting UPJO.Nephrogram showed that left GFR and right GFR were 35 ml/min and 34 ml/min,respectively.These results indicated mechanical obstruction of left upper urinary tract.The patient underwent retroperitoneal laparoscopic Anderson-Hynes dismembered pyeloplasty.Results The surgical procedure was successful.Two left renal veins were found,and the ventral one was in front of ureter,compressing the ureter.An aberrant renal artery went into left kidney with the ureter.0.5 cm stenosis of ureteropelvic junction was excised,and pyeloplasty was performed.A ureteral stent was placed into the ureter,then the pelvis and the ureter were sew up in front of the ventral renal vein.The surgical time was 240 min,and blood loss was 50 ml.Postoperative hospital stay time was 4 d.During 4 months' follow up,hydronephrosis was attenuated significantly.Conclusion Retroperitoneal laparoscopic surgery for UPJO with aberrant two renal vein might be a minimally-invasive and effective procedure.

BackgroundLimbal stem cell deficiency usually leads to blindness, and traditional therapy is limited. Recent research demonstrated that bone mesenchymal stem cells ( BMSCs ) and human amniotic epithelial cells(AECs) could differentiate into many kinds of cells including corneal epithelial cells, but the outcome and effect of these cells on corneal stem cell deficiency are still unclear. ObjectiveThis study aimed to observe and compare the effects of rabbit BMSCs and human AECs transplantation for rabbit limbal stem cell deficiency. Methods Eighteen clean New Zealand rabbits were randomly divided into the amniotic stroma(AS) group, rabbit BMSCs group and human AECs group with 6 rabbits for each group. Limbal stem cell deficiency models were established by putting a piece of filter paper that had been soaked in a NaOH solution at the corneal center. Rabbit BMSCs were isolated and purified by density gradient centrifugation combined with the attachment culture method, and human AECs were collected by a sequential trypsin digestion technique,and the third generation rabbit BMSCs and the first generation human AECs were identified with RT-PCR. After that,cells were inoculated onto the denuded AS and grafted to the corneal surface of the experimental animals. Twenty-eight days after cell transplantation, the therapeutic effects were evaluated based on the corneal neovascularization and opacity scores. Corneal histopathological examination and immunohistochemistry were performed to evaluate and compare the effectiveness among AS,rabbit BMSCs and human AECs on corneal stem cell deficiency. The procedure complied with the Regulations for the Administration of Affair Concerning Experimental Animals by State Science and Technology Commission. ResultsThe third generation of rabbit BMSCs grew well after 12 hours, and the first generation of human AECs formed a membrane-like monolayer after 48 hours of incubation on AS. Immunohistochemistry staining showed that, 28 days after transplantation, the surface cells of the cornea were positive for cytokeratin 3 in both the rabbit BMSCs group and human AECs group.Compared with the AS group,the corneal neovascularization and opacity grades were significantly decreased in the rabbit BMSCs group( Z=-2. 983, P =0. 003 ; Z =-2. 844, P =0. 004 ) and human AECs group ( Z =-2. 817, P =0. 005 ; Z =-2.041, P =0. 041 ). Histopathological analysis exhibited that stratified corneal epithelial-like cells formed on the corneal stroms 28 days after grafting and no signs of goblet cells and neovascularization were found. Less inflammatory cells and regular collagen fiber could be seen in the rabbit BMSCs group and human AECs group. In addition,clinical observation also revealed that the corneas were much clearer in the rabbit BMSCs group than the human A ECs group( Z =-2. 091 , P=0. 037 ), but the corneal neovascularization score was similar between them (Z = -0. 267,P=-0. 789). ConclusionsRabbit BMSCs and human AECs can differentiate into corneal epithelial-like cells onthedamagedcornealsurfaceandfurtherdemonstrateremarkableinhibitoryeffectsoncornealneovascularization and inflammatory cells. The more dominant and prominent effect is the role played by rabbit BMSCsin the improvement of corneal transparency.

Objective To investigate the expression of estrogen receptor (ER) α and β in human prostate cancer (PC), peri-cancer tissue and benign prostatic hyperplasia (BPH) tissue, and to discuss the role of estrogen receptor in prostate cancer. Methods The expression of ERα and ERβ in PC (n=28), peri-cancer tissue (n=28) and BPH (n=29) were detected by immunohistochemistry with En vision method. The ERα and ERβ expression were compared among different tissues by chisquare. The relationship between ER expression and related clinicopathologic features was statistically analyzed by spearman rank collection. Results ERα was localized dominantly in the stromal cell of PC. There were significant differences of the expression of ERα in PC, peri-cancer tissue and BPH tissue (epithelial cell 0%, 14%, 24%, P＜0. 05; stromal cell 57%, 68%, 31%,P＜0. 05). ERβ was localized in both epithelial and stromal cell of PC. There were significant differences of the expression of ERβ in PC, peri-cancer tissue and BPH tissue (epithelial cell 39%, 64%, 29%, P＜0.01; stromal cell 50%, 75%, 79%, P＜0.05). There was a significant difference of the expression of ERβ in different Gleason scores of PC tissue. Conclusions ERα is localized in the stromal cell of PC tissue.ERβ is localized in both epithelial and stromal cell of PC tissue. The ERβ might be related to the tumor differentiation of PC.

OBJECTIVETo establish sleeve gastrectomy(SG) rats model of obese type 2 diabetes mellitus(T2DM) for the research of hypoglycemic mechanism.

METHODSNine male Sprague-Dawley (6-week-old) rats were fed with high-sucrose and high-fat diet for 4 weeks, developing diet-induced obesity (DIO) rats model. The rats were then randomly divided into two groups. Six rats of them underwent sleeve gastrectomy(SG) as the sleeve gastrectomy group[SGG, body weight (471.8±17.9) g] and the other three rats underwent a laparotomy and stomach manipulation as the sham operative group[SOG, body weight (467.0±8.4) g]. The body weight, caloric intake and peripheral blood concentration of total ghrelin of rats were recorded after operation.

RESULTSThe weight of all the rats declined progressively after operation. The weight of the rats in SOG began to rise on the 5th postoperative day(POD) and regain their preoperative levels on the average 22nd POD. However, the weight of the rats in SGG began to rise slowly from the 9th POD, but was still lower than that of SOG[(487.4±10.1) g] and preoperative levels[(471.8±17.9) g] on the 28th POD[(420.1±18.6) g](P=0.001). Average caloric intake of rats in SGG was significantly lower than that of SOG after operation, but there was no significant difference between the two groups(P=0.121). The ghrelin level of SGG showed a continuous decreasing trend after intervention, decreased by 17.4% compared with the preoperative level (1595.1±14.4 ng/L) on the 28th POD[(1316.8±14.8) ng/L]. The ghrelin level of SOG did not change obviously before and after operation and both groups differ statistically(P=0.000).

CONCLUSIONSA SG rat model is successfully established. This model can be used for the further study of mechanism analysis of T2DM resolution after surgery.

Animals ; Diabetes Mellitus, Type 2 ; pathology ; Disease Models, Animal ; Gastrectomy ; methods ; Ghrelin ; blood ; Male ; Obesity ; blood ; surgery ; Rats ; Rats, Sprague-Dawley

Objective To evaluate the effectiveness of arthroscopically assisted percutaneous reduction and internal fixation with eannulated screws.Methods The fracture was reduced by closed manipulation or percutaneous leverage force by using the Kirschner wire.Then the patella was temporarily fixed by using a large size towel clamp or Kirschner wires.Under the guidance of knee arthroscopy,a micro-incision was made at the size of cannulated screw placement,the pilot holes were drilled at a proper depth,and the thread was configured.Two titanium screws were inserted parallelly.Results Following-up chekups for 4～24 months in 18 cases showed a satisfactory recovery of knee functions.According to the Bostman' standard,excellent effects were obtained in 16 cases and good effects in 2 cases.Conclusion Treatment of patellar fractures by percutaneous cannulated screw fixation under arrhroscope of- fered advantages of minimal invasion,accurate reduction,reliable fixation,and excellent recovery of joint functions.

Adolescent ; Adult ; Fatty Liver ; metabolism ; Female ; Humans ; Insulin ; blood ; Insulin Resistance ; Leptin ; blood ; Male ; Middle Aged

OBJECTIVETo investigate the presenting symptoms and signs, endoscopic findings, imaging changes and the clinical outcomes of endoscopic surgery in 23 patients with sphenoid mycetoma.

METHODSThe clinical data and the follow-up results of endoscopic surgery in 23 patients with sphenoid mycetoma, between April 2001 and January 2006, were retrospectively analysed.

RESULTSThe study population included 15 women and 8 men with a median age of 52.7 years. Presenting symptoms included headache (13 cases, 57%) and bloody discharge (9 cases, 48%). The computed tomography scans showed high density shadow in all 23 cases, with 17 cases (74%) had plaque or cord shaped calcification. All patients were treated by endoscopic transnasal approach. No surgical complications were found. Follow-up ranged 3-18 months, all symptoms disappeared, except strabismus in one case after 7 months of operation. The mucosa in surgical cavity is good.

CONCLUSIONSThe most common clinical symptoms of sphenoid mycetoma are headache and bloody discharge. Computed tomography scan has great value for the diagnosis of sphenoid mycetoma. The minimal invasion and the good outcome are the main advantages of the endoscopic surgery.

Adult ; Aged ; Endoscopy ; Female ; Headache ; Humans ; Male ; Middle Aged ; Mycetoma ; surgery ; Retrospective Studies ; Sphenoid Sinus ; pathology ; Sphenoid Sinusitis ; diagnosis ; surgery

Objective To evaluate the clinical value of multi-slice CT(MSCT)angiography in the diagnosis of Takayasu's arteritis.Methods Fourteen patients underwent MSCT angiography with use of 90 ml contrast media at a rate of 3.5 ml/s.Images were generated for vascular assessment with various reconstructional techniques,including multi-planar reformat(MPR),maximum intensity projection(MIP), volume rendering(VR),CT virtual endoscopy(CTVE)and advanced vessel analysis(AVA).Results MSCT angiography findings was consistent with the clinical changes of Takayasu's arteritis in all cases.The integrated information including reconstructional and transverse images clearly presented various luminal abnormalities,such as stenosis,occlusion and dilatation in the affected aorta,as well as its major branches and collateral circulation.Furthermore,it depicted mural abnormities,especially concentric arterial wall thickening.Steno-occlusive type(8/14)was more common than mixed type(6/14).According to Lupi- Herrea's classification,type Ⅰ in 5 cases,type Ⅱ in 2,type Ⅲ in 6 and type Ⅳ in 1 were recorded in the present study.Conclusion MSCT angiography is reliable imaging modality for the detection of Takayasu's arteritis.It is useful for early diagnosis because it allows evaluation of wall thickness rather than merely the luminal diameter,which is especially important for prognosis.It might be used as the first choice in the diagnosis of this disease as a simple,convenient and noninvasive method.