? AIM: To evaluate efficacy of Ranibizumab and Conbercept for wet age-related macular degeneration ( wAMD) .?METHODS: This was a retrospective case series study. Thirty patients ( 30 eyes ) with wAMD were enrolled to receive intravitreal injections of ranibizumab (0.5mg) on 3 consecutive monthly schedule and 28 patients (30 eyes) with wAMD were enrolled to receive intravitreal injections of conbercept ( 0.5mg ) on 3 consecutive monthly schedule.Best corrected visual acuity ( BCVA ), optic coherence tomography ( OCT ) measurement were compared at 1mo after injections.?RESULTS: One month after every injection, the BCVA increased while the central macular thickness ( CMT ) decreased compared with those before treatment in group A and B (P<0.05).BCVA and CMT changes between two groups were no statistically different (P>0.05).?CONCLUSION:Ranibizumab and conbercept therapy can control the prognosis of wAMD and improve the vision effectively. There is no statistical difference on the curative effect between two drugs for 3mo.

Objective: To investigate the chemical constituents from Peucedanum decursivum. Methods: P. decursivum was extracted with 95% ethanol, the compounds were isolated via various chromatographic methods, and their structures were identified by detailed spectroscopic analyses. Results: Twelve compounds were isolated from the acetic ether fraction in the 95% extract of P. decursivum and were identified as isobergapten (1), bergapten (2), pimpinellin (3), isopimpinellin (4), columbianetin acetate (5), sphondin (6), qianhucoumarin E (7), xanthotoxin (8), osthole (9), ferulic acid (10), β-sitosterol (11), and psoralen (12). Conclusion: Compounds 1, 4, and 5 are isolated from the plants in Peucedanum L. for the first time, and compounds 2, 3, 6-10, and 12 are firstly isolated from P. decursivum.

Objective To introduce a design of automatic biochip sample testing system.Methods The computer control was adopt and based on operational process to design system functional modularization.Results The system can be had a series of functions,including automatically biochip sampling,reaction,detection and so on.Conclusion The stability and accuracy of the biochip testing can be ensured and provided testing efficiency.

Purpose:To investigate the survival and prognostic factors in patients with stage Ib～IIb node-negative cervical carcinoma.Methods:From Nov.1993 to Dec. 1997,236 patients who had radical hysterectomy and pelvic lymphadenectomy and pelvic lymph node found negative were reviewed retrospectively. Survival rates were calculated by Kaplan-Meier method with differences in survival estimated by Log-rank test. Independent prognostic factors were identified by the Cox's proportional-hazards regression model. Results:The overall 5-year survival of the patients was 82.0% and the median survival time was 100.0 months. The recurrence and/or metastatic rate was 19.5%. Of these patients the 5-year survival rate was 16.9% and median survival time was 15.0 months. Among the variables,clinical stage(Ⅱb),tumor size(≥4 cm),histological type (non-squamous carcinoma),poor differentiation,deep stromal invasion,parametrial extension,vaginal margin involved,and lymphvascular permeation were the poor prognostic factors in univariate survival analysis ( P

Purpose:To detect the expression of cytokeratin 19 (CK19) mRNA and human papillomavirus type 16 (HPV16) mRNA in peripheral blood of cervical cancer patients. Methods:We used reverse transcription polymerase chain reaction (RT-PCR) to determine the expression of CK19 and HPV16 mRNA of 30 cervical cancer patients,8 patients with known distant metastases,16 patients with benign gynecological tumors and 9 healthy persons as control. Results:The presence of CK19 mRNA was observed in 3 peripheral blood samples among 30 cervical cancer patients (10%). The positive ratios for cervical patients with metastases,benign tumors and healthy control were 8/8,0/16 and 0/9. Only 10 cervical samples were proved to be HPV 16 positive by immunohistochemistry and/or hybridization in situ,whose expression of HPV16 mRNA in the peripheral blood were all negative (0/10). The positive ratios for cervical patients with metastasis,benign tumors and healthy control were 1/8,0/16 and 0/9,respectively. Conclusions:CK19 mRNA may be considered a powerful biomarker in the detection of peripheral blood of cervical cancer patients due to its high sensitivity and specificity. The detection of HPV16 mRNA was low and its clinical significance needs further evaluation.

Objective To compare the efficacy between ureteroscope with holmium laser lithotripsy (URS) and minimally invasive percutaneous nephrolithotomy (MPCNL) in oblique supine position for the proximal and middle ureteral calculi.Methods Ninety-six patients with proximal and middle ureteral calculi were divided into URS group (54 cases) and MPCNL group(42 cases) according to the treatment order.The operative duration,postoperative hospital stay,stone-free rate,intraoperative blood loss ＞ 400 ml rate,conversion to open surgery rate,complication rate including postoperative fever were observed,and stone composition was analyzed.Results The operative duration and postoperative hospital stay in URS group and MPCNL group were (55.3 ± 12.1),(49.6 ± 11.5) min and (1.7 ± 0.9),(4.4 ± 1.2) d,respectively,and there were significant differences (P ＜ 0.05 or ＜ 0.01).There were no significant differences in the stone-free rate,complication rate (Clavien degree Ⅱ),conversion to open surgery rate,intraoperative blood loss ＞ 400 ml rate,complication rate,postoperative fever rate (P ＞ 0.05).Stone composition analysis showed that the proportion of calcium oxalate stone was 51.0％(49/96).Conclusions URS and MPCNL in oblique supine position for the proximal and middle ureteral calculi are effective and safe therapeutic modalities.The operative duration of MPCNL in oblique supine position is shorter,and postoperative recovery of URS is fast.

G protein-coupled receptor 30 ( GPR30),a sort of novel functional estrogen transmembrane receptor,extensively participate in the pathological and physiological regulation by mediating the rapid nongenomic effects of the estrogen,which plays an important role in the occurrence and development of the hormone-related malignant neoplasms.

AIM: To investigate the effect of epidermal growth factor receptor (EGFR) inhibitor erlotinib on kidney injury in diabetic nephropathy (DN) rat and the underlying mechanism.METHODS: The rat model of DN was induced by intraperitoneal injection of streptozotocin (STZ) at dose of 55 mg/kg.One week after STZ injection, the rats with blood glucose level exceeding 16.7 mmol/L were identified as diabetic.Diabetic rats were randomly divided into 2 groups: STZ group and STZ+erlotinib group.In addition, the normal rats were used as control group.The rats in STZ+erlotinib group were treated with erlotinib at 100 mg·kg-1·d-1 for 4 weeks(5th~8th week).The fasting blood glucose (FBG), serum creatinine (SCr) and 24 h urine protein were measured.The pathological changes of the kidney were observed by HE staining and Masson staining.The protein levels of EGFR, p-EGFR, transforming growth factor β1 (TGFβ1), Smad2/3, p-Smad2/3, collagen Ⅳ (ColⅣ) and fibronectin in the kidney tissues were determined by Western blot.The reactive oxygen species (ROS) level and malondialdehyde (MDA) content in the renal tissues were futher analyzed.RESULTS: Compared with control group, the levels of FBG, 24 h urine protein and Scr were significantly increased in STZ group (P<0.01).Compared with STZ group, the levels of FBG, 24 h urine protein and SCr in STZ+erlotinib group were markedly decreased (P<0.05).In additon, the glomerular structure was restored to normal, the proliferative degree of mesangial cells markedly attenuated, and the epithelial cells were in alignment in STZ+erlotinib group.Moreover, erlotinib significantly inhibited the protein levels of p-EGFR, TGFβ1, p-Smad2/3, ColⅣ and fibronectin in the kidney tissues of STZ rats.In addition, erlotinib also significantly inhibited the levels of ROS and MDA in the kidney tissues of STZ rats.CONCLUSION: Erlotinib ameliorates STZ-induced diabetic nephropathy possibly through inhibiting the activation of EGFR/TGFβ1-Smad2/3 signaling pathway in association with suppression of fibrosis and oxidative stress.

As an active oxygen, ozone can induce oxidative stress, however, small doses of ozone pretreatment of the body may devel-op to oxidation toleration, even anti-oxidative damage, thereby protecting organ from ischemia-reperfusion injury. This paper reviewed the status of ozone pretreatment in organ ischemia-reperfusion, such as heart, kidney, liver, skeletal muscle, gonads and brain. Ozone therapy may have potential application values in organ transplants and cardiovascular diseases. Meanwhile, whether clinical application of ozone big autohemotherapy in ischemic cerebrovascular disease is reasonable or not in nearly 10 years was put forward.

Objective To discuss the diagnosis and surgical treatment of multiple endocrine neoplasia 2 (MEN2). Methods The clinical data of 28 MEN2 cases from Jun 1997 to Jun 2006 were retrospectively analyzed. Results There were 25 cases of MEN2a and 3 cases of MEN2b. Among the patients of MEN2a, 23 patients were from 7 families with mutation of codon 634, exon 11 of RET, 3 patients of MEN2b had mutation of codon 918, exon 16 of RET and no family history. Twenty-two cases of MEN2a had thyroid masses with elevated calcitonin level, in which 17 were pathologically diagnosed as medullary thyroid carcinoma (MTC) ,12 patients had pheochromocytomas. Among them, 5 were of multiple foci and 2 were malignant. Five patients presented hyperparathyroidism and 3 patients were asymptomatic without biochemical alterations. Three MEN2b patients had MTC and mucosal ganglioneuromatosis with Marfanoid, one patient had bilateral pheochromocytoma. Total thyroidectomy with bilateral dissection of regional lymph nodes was performed in 12 patients of MEN2a, and nodule enucleations was done in other 5 patients followed by persistent elevated calcitonin level. Nine MEN2a patients underwent pheochromocytoma enucleation including bilateral adrenal resection in 3 cases. Three MEN2b patients underwent total thyroidectomy with bilateral lymph node dissection. Conclusions MTC is the most often complications of MEN2. Germline mutation test helps to make early diagnosis. Radical total thyroidectomy in young patients may prevent MTC.