Regional anatomy of inguinal hernia is one of the teaching difficulties.The students always feel confused due to deficiency of visual and vivid teaching materials.The thesis analyzed the efficacy of using high-definition video of laparoscopic inguinal hernia repair (LIHR) in the clinical teaching of inguinal region anatomy aiming to deepen the understanding,inspire the enthusiasm and initiative of students and improve the quality of teaching.

Objective To investigate the number and activities changes of peripheral blood endothelial progenitor cells (EPCs) in continuous ambulatory peritoneal dialysis (CAPD) patients,and explore the connection between EPCs' number and the levels of advanced glycosylation end products (AGEs),homocysteine (Hcy) and C-reactive protein (CRP).Methods Twenty-five CAPD patients and thirty healthy volunteers were involved.Total mononuclear cells (MNCs) were isolated from peripheral blood of patients.EPCs were characterized as adherent cells by double staining of FITCUEA-1 and DiL-AcLDL binding,and were further demonstrated by positive cells of CD34,CD133 and KDR using flow cytometry.The abilities of cell proliferation,adhesion and migration were further observed by fluorescent microscope.The correlations between the CEPCs' number and the levels of AGEs,Hcy and CRP were analyzed.Results The number and activities including migration and adhesion of EPCs in CAPD group were significantly lower than control group (P ＜ 0.05).The levels of serum AGEs,Hey and CRP in CAPD patients were increased (all P＜0.05) and had negative correlation with EPCs' number.Conclusions The number and activities of EPCs decrease in patients with CAPD,and EPCs' number is negatively correlated to the levels of AGEs,Hcy and CRP.

Objective To determine the correlation between intestinal epithelial cell apoptosis; and STAT3 activation during murine severe acute pancreatitis (SAP).Methods Wistar rats were divided into four groups (12 in each group): S (sham), C (control), A (SAP), N (NAC was given 1 hour before SAP).Samples were obtained 3 or 24 hours after for the determination of plasma D-lactate, intestinal mucosa MDA and XO, immunohistochemical staining for PCNA.Apoptosis of the epithelial cell was examined with TUNEL and DNA laddering.The expressions of Bcl-2? Bax? p-STAT3 in intestinal mucosa were assessed by Western blot.Results Plasma D-lactate and intestinal epithelial cell apoptosis increased in group A, especially at 24 hours after operation ( P

Objective To establish embryonic stem cells (ESC) that can express green fluorescent protein (CFP) and differentiate them into neurons. It would provide tagging neurons for clinical transplantation to cure neural system diseases. Methods ESC (R1) was transfeeted with a plasmid containing the GFP by electroporation. A transgeuic cell line was obtained after selection with G418. The ESCs were characterized by AKP staining. Monolayer differentiation method was used to induce neural differentiation derived from GFP-ESC and immunofluorescence method was used to identify Tuj1 positive cells. Results There was no significant difference(X2=3.14,P0.05) in transfect rates between liposome and electroporation (65% vs 79%). The AKP staining of GFP-ESC was positive. GFP-ESC could be differentiated into neural cells. Conclusions These results show that ESC expressing GFP has been estabhshed, which can be differemiated into neurons.

Objective To develop a ribbed,oxygen-enriched and inflatable tent to fulfill the requirements for mobile enriched oxygen supply under plateau conditions.Methods The tent was developed with ribbed skeleton,PVC material,nested structure,buffer door,channel for fresh air dispersion,exhaust recovery pipeline and etc,and the self-developed plateau oxygen enrichers were involved in to establish a mobile oxygen-enriched room.The enrichers were divided into four grades of 20,50,70 and 100 m3/h,which were used to execute 8-h oxygen-enriched fresh air dispersion in the tent.The change curves of the fractions for oxygen and carbon dioxide were compared and analyzed at 5 disperse points in the tent.Results Optimal effect was acquired with 20 m3/h oxygen enricher,the oxygen concentration reached 27％ in the tent after 8-h dispersion,while the carbon dioxide fraction was 1 800 ppm (1 ppm=l×l0-6) and it took 3-h to raise oxygen concentration to 25％.Conclusion The tent combined with 20 m3/h oxygen enricher decreases the equivalent altitude from 5 000 m to less than 3 000 m,and is hopeful to be spreaded in the plateau troops after improvement.

Glomerular hypertrophy is the main pathological characteristic in the early stage of diabetic nephropathy (DN), and its regulatory mechanism is closely related to mammalian target of rapamycin (mTOR) signaling pathway activity. mTOR includes mTOR complex 1 (mTORC1) and mTOR complex 2(mTORC2), in which, the upstream pathway of mTORC1 is phosphatidylinositol-3-kinase (PI3K)/serine-threonine kinase(Akt)/adenosine monophosphate activated protein kinase(AMPK), and the representative signaling molecules in the downstream pathway of mTORC1 are 4E-binding proteins(4EBP) and phosphoprotein 70 S6Kinase(p70S6K). Some Chinese herbal extracts could improve cell proliferation via intervening the expressions of the key molecules in the upstream or downstream of PIK/Akt/mTOR signaling pathway in vivo. As for glomerular mesangial cells(MC) and podocyte, mTOR plays an important role in regulating glomerular inherent cells, including adjusting cell cycle, energy metabolism and matrix protein synthesis. Rapamycin, the inhibitor of mTOR, could suppress glomerular inherent cell hypertrophy, cell proliferation, glomerular basement membrane (GBM) thickening and mesangial matrix deposition in model rats with DN. Some Chinese herbal extracts could alleviate glomerular lesions by intervening mTOR signaling pathway activity in renal tissue of DN animal models or in renal inherent cells in vivo and in vitro.
Animals ; Diabetic Nephropathies ; drug therapy ; enzymology ; genetics ; pathology ; Drugs, Chinese Herbal ; administration & dosage ; Humans ; Hypertrophy ; drug therapy ; enzymology ; genetics ; pathology ; Kidney Glomerulus ; drug effects ; metabolism ; pathology ; Signal Transduction ; drug effects ; TOR Serine-Threonine Kinases ; genetics ; metabolism

OBJECTIVETo explore the management of fungal pyelonephritis in infants.

METHODData from 5 cases with fungal pyelonephritis, including the clinical situation, laboratory examination, feature of imaging, and treatment were analyzed.

RESULTAll the 5 cases were preterm and low birth weight infants. In 3 cases the disease was unilateral, in 2 cases were bilateral, and acute renal failure occurred. Fungus balls presented on imaging. Urine culture was positive of Candida albicans. Treatment with percutaneous nephrostomy, irrigation and antifungal agent were associated with good prognosis. Only 1 case died. The surviving patients were followed up for 10 - 20 months and the results showed normal growth and development. B-mode ultrasound examination did not show any malformation of the urinary system.

CONCLUSIONFungal pyelonephritis was commom in preterm infants. Candida albicans was the major pathogenic microorganism. Percutaneous nephrostomy and drainage were effective in patients with urinary obstruction in relief of obstruction, early diagnosis and control of infection.

Acute Kidney Injury ; etiology ; therapy ; Amphotericin B ; administration & dosage ; Antifungal Agents ; administration & dosage ; therapeutic use ; Candida albicans ; isolation & purification ; Candidiasis ; complications ; diagnosis ; therapy ; Chymotrypsin ; administration & dosage ; Female ; Humans ; Infant ; Infant, Newborn ; Infant, Premature ; Male ; Nephrostomy, Percutaneous ; Pyelonephritis ; diagnosis ; microbiology ; therapy ; Treatment Outcome ; Ultrasonography, Doppler, Color ; Ureteral Obstruction ; etiology ; therapy ; Urine ; microbiology

OBJECTIVETo investigate the expression of miR-34a in stage II-III colorectal cancer and to elucidate its association with recurrence after radical resection.

METHODSmiR-34a expression level was detected in colorectal cancer patients with recurrence (40 cases) and without recurrence (40 cases) within 3 years after radical operation by real-time RT-PCR.

RESULTSNo association was observed between miR-34a and gender, age, location, local invasion, lymph node metastasis, cancer embolus, or tissue differentiation (all P>0.05). The expression level of miR-34a was lower in patients with recurrence compared to those without recurrence after radical surgery (P=0.039). Univariate analysis indicated that the median disease-free surviva l(DFS) of patients with low expression of miR-34a was worse as compared to those with high miR-34a expression (13.4 vs. 18.4 months, P=0.010), especially for stage III (P=0.003). In the recurrence group, the median DFS of patients with low miR-34a expression (n=14) was 13.4 months, which was shorter than that of patients with high miR-34a expression (n=26, 18.4 months, P=0.037). Multivariate analysis showed that miR-34a expression was an independent factor for colorectal cancer recurrence (RR=0.397, 95%CI:0.205-0.768, P=0.006).

CONCLUSIONThe down-regulated expression of miR-34a in colorectal cancer patients is associated with recurrence after radical operation. miR-34a may be a marker to predict tumor recurrence and metastasis of colorectal carcinoma.

Adult ; Aged ; Aged, 80 and over ; Colorectal Neoplasms ; metabolism ; pathology ; surgery ; Down-Regulation ; Female ; Humans ; Lymphatic Metastasis ; Male ; MicroRNAs ; metabolism ; Middle Aged ; Neoplasm Recurrence, Local ; Postoperative Period ; Prognosis

Professor WU Liang-cun is good at the treatment of primary hepatic carcinoma. He views that the main pathogenesis of primary hepatic carcinoma is liver and kidney deficiency. Therefore, treatment should be based on enriching water to nourish wood, with soothing the liver and regulating qi, clearing the gallbladder and removing dampness, promoting blood circulation for removing blood stasis, detoxicating and resolving masses.

Intracellular signal transduction plays an important role in the process of cellular metabolism, segmentation, differentiation, biological behaviour and cell death. Overactive signal transduction relates to tumor development and progression. Signaling pathways operated by protein tyrosine kinases (PTKs) will be illuminated here briefly. The Ras/Raf/MAPK and PI-3K/Akt pathways through receptor protein tyrosine kinases (RTKs), the Src, Bcr-Abl and JAK/STAT pathways by non-receptor protein tyrosine kinases (nrPTKs) are shown separately. Antitumor agents targeting the key proteins involved in the above five signalling routes are also summarized in this review.
Animals ; Antineoplastic Agents ; pharmacology ; Humans ; Phosphatidylinositol 3-Kinases ; metabolism ; Protein-Tyrosine Kinases ; metabolism ; Receptor Protein-Tyrosine Kinases ; metabolism ; STAT Transcription Factors ; metabolism ; Signal Transduction ; drug effects ; ras Proteins ; metabolism ; src-Family Kinases ; metabolism