AIM: To study the curative effect for patients with age related cataract and shallow anterior chamber after phacoemulsification.METHODS: Totally 38 patients (38 eyes) with age related cataract and shallow anterior chamber were selected and divided into two groups according to the depth of the anterior chamber, as mild shallow anterior chamber group (2-2.5mm) 23 eyes, high risk shallow anterior chamber group (<2.0mm) 15 eyes.Thirty-eight patients (38 eyes) with age related cataract with normal anterior chamber were as control group at the same period.All the patients received the operations by the same doctor and were followed up for 3mo.The observed items included visual acuity before and after operations, intraocular pressure, anterior chamber depth, corneal endothelial cell density and complications.RESULTS: There were no significant difference on visual acuity, intraocular pressure and corneal endothelial cell density between the two groups before operations (P>0.05).The visual acuity improved significantly after operation in both groups (P<0.05).Intraocular pressure after operation decreased significantly in both groups (P<0.05).Anterior chamber depth increased significantly after operation in both groups (P<0.05).Corneal endothelial cell density decreased significantly in both groups (P<0.05).There were no significant difference on anterior chamber depth, intraocular pressure and corneal endothelial cell density between the two groups at different time point after operations (P>0.05).Posterior capsular rupture occurred in shallow anterior chamber group in 1 eye, suspensory ligament rupture in 1 eye.Posterior capsular rupture and suspensory ligament rupture occurred none in normal anterior chamber group.Postoperative corneal edema occurred in 10 eyes (26%) in shallow anterior chamber group, which occurred in 3 eyes (8%) in normal anterior chamber group.The difference on the incidence was significant (P <0.05).CONCLUSION: Phacoemulsification should be taken timely for patients with age related cataract and shallow anterior chamber.The postoperative visual acuity can be improved and the anterior chamber depth can increase.The operation is safe and effective for those patients.

AIM: To investigate the effect of ginsenoside-Rg3 on the expression of vascular endothelial growth factor (VEGF) and tumor necrosis factor-α (TNF-α) in retina with diabetic rats and its roles in preventing neovascularization in diabetes. METHODS: Sixty male Wistar rats were divided into 3 groups randomly: negative control group, diabetic control group and ginsenoside-Rg3 treatment group (5mg/kg, 0.2mg/mL) followed by establishing diabetic model. The expression of VEGF and TNF-α were measured after 8 weeks. RESULTS: There were significant differences among negative control group, diabetic control group and ginsenoside-Rg3 treatment group in the expression of VEGF and TNF-α (F=129.363, 211.992; all the P<0.01). VEGF and TNF-α expression were significantly higher in diabetic control group and ginsenoside-Rg3 treatment group than that in negative control group (P<0.01), with a significant reduction in ginsenoside-Rg3 treatment group than that in diabetic control group (P<0.01). CONCLUSION: Ginsenoside-Rg3 can down-regulate the expression of VEGF and TNF-α in retina, which may interfere in the development of diabetic retinopathy.

AIM: The method of the double qualitative similarities and the double quantitative similarities was carried out for the evaluation of the chromatographic fingerprints and applied to HPLC fingerprints of Rhizoma anemarrhenae. METHODS: The chromatographic fingerprints were obtained by injecting 5 ?L of the sample solution each time on a CenturySIL C_(18) BDS column(20 cm?4.6 mm,5 ?m) with the gradient elution solvent system composed of 1% acetic acid-water and 1% acetic acid-acetonitrile.The column temperature was maintained at(30?0.15) ℃ and the detection wavelength was set at 265 nm.The chromatographic fingerprints were evaluated by the normalized similarity S_F and normalizing similarity S′_F and the projecting similarity C% and quautitative similarity P%, changes in characteristics were investigated in the cases of big peaks-free and small peaks-free respectively. RESULTS: 21 co-possessing peaks were selected as the fingerprint peaks of Rhizoma anernarrhenae by choosing rutin peak as the reference peak.S_F could clearly reflect the chemical constituent distribution,and C% could reflect the total contents of the sample,but both of them were seriously influenced by the big peaks and could not reflect the missing of small peaks.S′_F and P% were equivalent weight to all fingerprint peaks,and they could reflect sensitively the small peaks drop-out. CONCLUSION: The double qualitative similarities and the double quantitative similarities are composed of S_F,S′_F,C% and P%,so the changes or lacks of both big peaks and small peaks can be punctually simultaneously monitored to be a novel method for evaluating fingerprints.The HPLC fingerprints can be useful in the quality control of Rhizoma anemarrhenae.

Objective To investigate the effects of desflurane and/or nitric oxide (NO) on the lung injury induced by ischemia-reperfusion ( I/R) during cardiopulmonary bypass (CPB) in children with pulmonary hypertension secondary to congenital heart disease (CHD) .Methods Forty children with CHD and pulmonary hypertension (24 male, 16 female) aged 0.6-3.7 yrs weighing 7.1-11.9 kg undergoing cardiac surgery under CPB were randomly divided into 4 groups ( n = 10 each): group control; group DES; group NO and group DES + NO. The patients were premedicated with oral midazolam 0.5 mg?kg-1. Anesthesia was induced and maintained with fentanyl and vecuronium. Radial artery was cannulated for MAP monitoring and blood sampling. Pulmonary catheter was placed under direct vision after chest was opened. The patients received inhalation of desflurane (1-1.3 MAC) (group DES)/NO (10-20 ppm) (group NO) /DES + NO (group DES + NO) immediately after pulmonary catheterization until the start of CPB. MAP, PAP, peak airway pressure (Ppeak) and compliance of respiratory system (Crs) were recorded at 5 min after induction (T0 ), 5 min before CPB (T1 ), 5 min after start of CPB (T2) and at the end of surgery (T3) . Blood samples were taken at T0 and T3 for determination of methemoglobin (Met-Hb), soluble intercellular adhesion molecule-1 (sICAM-1), XOD and MDA.Results The four groups were comparable with respect to age, M/F ratio, body weight, duration of CPB and type of operation performed. MAP was significantly decreased after inhalation of desflurane alone or desflurane + NO before CPB ( at T1) as compared to the baseline value at T0; while PAP was significantly decreased after inhalation of NO alone or NO+ desflurane before CPB (at T1) as compared to the baseline value. Ppeak was significantly lower while Crs was significantly higher at end of surgery (T3) in group NO and NO + desflurane than in control group. Blood sICAM-1 and MDA concentrations and XOD activity were significantly lower at the end of surgery (T3 ) in group DES, NO and DES + NO than in control group. Met-Hb was significantly increased at the end of surgery (T2) as compared to the baseline (T0) in group NO and DES + NO but was still within normal range. Conclusion Inhalation of desflurane and/or NO can ameliorate the lung injury during CPB in children with pulmonary hypertension secondary to CHD, in addition to inhibit the pulmonary hypertension.

Glaucoma,especially common primary open-angle glaucoma and primary angle-closure glaucoma,shows high genetic heterogeneity. The causing-disease genes known are difficult to explain some glaucomatous cases,and the study on the susceptibial gene of glaucoma do not achieve new breakthroughs. Combined with the newest progression in genetic study of glaucoma,some views were proposed in this paper in order to better understand the updating study of the pathogenesis mechanism.

Objective:To study the effects of parathyroid hormone(PTH) upon dentinogenesis by investigating the effects of hPTH1-34 on the development and calcification of parathyroidectomy rats' dentin. Methods: hPTH1-34 were injected into SD rats at different dosages after parathyroidectomy. Six weeks later lower incisors were dissected and prepared for light microscopy and image analysis. Results:The concentration of serum calcium decreased after parathyroidectomy, while increased after being injected hPTH1-34. The results of light microscopy and image analysis revealed the enlargement of the predentinal tubules and the presence of mineralization defects in the PTX group(P

Objective　 To promote the therapeutic effect about the primary hypertension connected psychological factor through interventing anxiety emotion.Method　All primary hypertension patients with anxiety emotion were divided into two groups randomly.Each group was treated by lotension for 8 weeks,While group 1 combined antianxiety drugs Deanxit Result　The effective rate of two groups were 93.94%(group 1), 60.61%(group 2).Conclusion　 The therapeutic effect of group 2 is lower than that of group 1.

Objective To explore the possible mechanisms of the protective effect of leflunomide on kidneys by observing the effects of leflunomide on rat kidney tissue of focal segmental glomerulosclerosis (FSGS) expression level of transforming growth factor (TGF)-β1.Methods Twenty-four SD rats were randomly divided into 3 groups:normal control group (n =8),FSGS model group (n =8) and leflunomide treatment group (n =8).Unilateral nephrectomy 1 week after repeated injection of doxorubicin established FSGS model.Since 2 weeks after surgery,the treatment group had been given the leflunomide suspension 5 mg/(kg · d) orally,while normal control group and model group had been given the same amount of solvent orally.In the 8th week of the experiment,the rats were sacrificed and the specimens were collected,so serum creatinine,blood urea nitrogen,total cholesterol,albumin and 24 hours urinary protein were recorded; renal tissue was taken for pathological examination and calculation of glomerular sclerosis index (GSI) was made;immunohistochemical detection of TGF-β1 expression in the kidney was performed;The expression of TGF-β1 was examined by Western blot.Results Compared with normal control group,FSGS model group and leflunomide treatment group rats' 24 hours urinary protein excretion,serum creatinine,blood urea nitrogen,and cholesterol significantly increased while serum albumin significantly reduced severe renal pathological changes and TGF-β1 protein expression was significantly increased,and the differences were statistically significant (all P ＜ 0.05) ; Compared with the FSGS model group,in the 8th weekend of the experiments,the treated rats' 24 hours urinary protein excretion,relevant serum biochemical indicators of renal pathological changes had different degrees of improvement in renal tissue and TGF-β1 protein expression was decreased,so the differences above were statistically significant(all P ＜ 0.05).Conclusions Leflunomide may reduce the FSGS kidney tissue fibrosis by inhibiting the expression of TGF-β1,and thus protect the kidneys.

Objective: To study whether normal adult stem cells can have malignant transformation (have tumor characteristics) when exposed to tumor microenvironment. Methods: We established an in vitro model of melanoma cell-induced malignant transformation of epidermal stem cells in a cell co-culture system. The morphological changes of epidermal stem cells were observed before and after induction by phase-contrast microscope; the expression of E-cadherin and P53 mutant protein were examined by immunofluorescence method. Soft agar test was used to examine the colony forming ability of epidermal stem cells after co-culture. Results: Seven days after co-culture with A-375 cells, epidermal stem cells began to form visible colonies. The expression of E-cadherin protein was decreased and P53 mutant protein was observed in some cells. Soft agar test showed that 0. 55% epidermal stem cells formed colony in the soft agar. Conclusion: This study shows that epidermal stem cells can obtain the characteristics of tumor cells when exposed to inducement of A-375 cells, suggesting that tumor microenvironment can cause disturbance in self renewing and differentiation of stem cells.

Child, Preschool ; Humans ; Hypertension, Portal ; physiopathology ; Male