Objective To compare the changes of corneal endothelial cells in early recovery period after 1.8 mm small incision phacoemulsification nucleus chopping and conventional incision phacoemulsification for cataract.Methods Fifty-three patients with cataract were divided into the observation group and control group according to different operation methods.The observation group was treated with 1.8 mm small incision phacoemuisification nucleus chopping while the control group was treated with routine incision phacoemuisification.The visual acuity,degree of astigmatism,corneal endothelial cell indexes and complications were observed.Results The effective ultrasound time and average ultrasonic energy of the observation group were significantly less than those of the control group (all P ＜ 0.05).Compared with 1 day before operation,the visual acuity,degree of astigmatism,corneal endothelial cell area (ECA) and coefficient of variation (CV) were significantly increased at 1 week and 4 weeks after operation,and corneal endothelial cell density (ECD) was significantly decreased (all P ＜ 0.05).The visual acuity and ECD levels of the observation group at 1 day,1 week and 4 weeks after operation were significantly higher than those of the control group,while the degree of astigmatism,ECA and CV were significantly lower than those of the control group (all P ＜ 0.05).Conclusion Compared with the traditional incision phacoemulsification,the damage of 1.8 mm small incision phacoemulsification nucleus chopping to corneal endothelial cells is significantly milder,can reduce the effective ultrasound time and average ultrasonic energy,decrease the degree of astigmatism,improve the visual acuity and decrease the corneal edema.

AIM:To observe the preliminary efficacy of conbercept injected intravitreally for the treatment of wet age-related macular degeneration(wAMD).METHODS:Seventeen wAMD patients (18 eyes) were selected to receive conbercept injection.All patients were given a single conbercept injection every month,3 times.Before and after 1,2,3mo of the injection,the best corrected visual acuity (BCVA),intraocular pressure (IOP,measured by Non-contact tonometer),fundus photography,fundus fluorescein angiography(FFA),indocyanine green angiography(ICG),optical coherence tomography(OCT) examination and the complications incidence were compared.RESULTS:Three months after conbercept injection,the BCVA improved in 15 eyes (83%),stable in 3 eyes (17%).Before treatment,the average central macular thickness was 421.72±54.43μm,at 1 and 2 and 3mo after treatment,the average central macular thickness was 337.89±25.88μm,293.56±26.87μm,266.89±19.10μm respectively.There were significant differences compared with before and after injection(P<0.05).In the final follow up,FFA and ICG showed that the leakage in macular area disappeared in 15 eyes (83%),still existed in 3 eyes (17%),in those 3 eyes the injection was given for one or two times till the leakage disappeared.Elevated intraocular pressure occurred in 2 cases (26mmHg,23mmHg),after 1d down to normal.Another patient showed postoperative envy,given left ofloxacin eye drops after 2d,then back to normal.There was no serious ocular adverse reactions.CONCLUSION:Intravitreal injection conbercept for wAMD can significantly improve the visual function,reduce the macular edema and the leakage with higher safety and less complications.However the prolonged efficacy needs further observation.

Adult ; China ; Female ; Humans ; Occupational Health Services ; Women's Health Services ; Young Adult

Objective To evaluate the influence of different field-strength magnets(1.5 T and 3.0 T)on MRI artifacts caused by Ni-Cr alloy fixed prostheses.Methods The crown,bridge and upper denture fixed prostheses with different thickness were produced by Ni-Cr alloy as test samples,and were one by one put on the centre of water phantom for MR scanning with different field-strength magnets(1.5 T and 3.0 T).The artifact areas on these two field-strength magnets were measured and statistically compared.The plastic prostheses with the same shape and thickness as the test samples were served as controls.Results Ni-Cr alloy fixed prostheses could cause MRI artifacts,and the artifact areas increased with the mass of prostheses.However,no artifact area was found in controls.Compared with those on 1.5 T magnet,the MRI artifact areas significantly increased on 3.0 T magnet(P

Objective To compare the body composition of diabetic and healthy subjects and to investigate the correlation between obesity and type 2 diabetes mellitus.Methods Body composition was analyzed in 80 type 2 diabetic patients (diabetes group) and 80 healthy subjects (control group) selected at random.They were measured for body fat mass,visceral fat area,sketedtal muscle mass,waist-hip ratio,the content of protein and mineral,etc.The blood glucose,blood fat,insulin resistance index (Homa-IR) and glycosylated hemoglobin(HbA1c) were also measured.Results The means of body fat mass((19.68 ± 6.78)kg),percent body fat ((29.87 ± 8.04) ％),obesity degree ((115.93 ± 15.94) ％),visceral fat area ((104.48 ± 36.19) cm2),Body mass index(BMI) ((24.85 ± 3.51) kg/m2),chest circumference ((94.06 ±7.86) cm),waist circumference ((85.18 ± 9.50) cm) and waist-hip ratio (0.90 ± 0.05) were significantly higher than the means of healthy subjects'weight control ((-4.08 ± 6.79) kg),body fat mass ((17.31 ± 5.55)kg),percent body fat ((27.38 ± 6.47)％),obesity degree((108.88 ± 13.80)％),visceral fat area ((85.44 ±44.04) cm2),BMI ((23.43 ± 3.10) kg/m2),chest circumference ((91.11 ± 7.52) cm),waist circumference ((80.79±8.17) cm) and waist-hip ratio (0.86 ± 0.05) (t=2.55,2.30,3.12,2.86,2.73,2.28,3.12 and 4.76 respectively;P ＜0.05),body mass control ((-7.01 ± 7.49) kg),obesity control ((-8.53 ± 6.66)kg),muscles control((1.52 ± 1.43) kg) were lower than control group:the body mass control((-4.08 ±6.79) kg),obesity control ((-6.39 ± 5.78) kg),muscles control ((2.31 ± 2.09) kg).The uric acid was negatively related to weight control and obesity control (r =-0.43,-0.42 ; P ＜ 0.01),and were positively related to visceral fat area,percent body fat,waist-hip ratio,BMI,obesity degree,chest circumference,waist circumference and body fat mass (r =0.32,0.31,0.40,0.36,0.36,0.31,0.42,0.42 ; P ＜ 0.05).The triglyceride was negatively related to weight control and obesity control (r =-0.44,-0.41 ;P ＜ 0.01),and were positive related to percent body fat,waist-hip ratio,BMI,obesity degree,chest circumference,waist circumference and body fat mass(r =0.27,0.35,0.46,0.46,0.35,0.42,0.42 ;P ＜ 0.05).Conclusion The body fat and fat distribution are significantly different between diabetic and healthy subjects.There may be some relationship between central obesity and diabetes.

ObjectiveTo observe the effect of cognitive rehabilitation on patients with mild vascular dementia. Methods60 patients with mild vascular dementia were randomly divided into cognitive rehabilitation group(Group A,30 cases) and non-cognitive group (Group B,30 cases).All patients in those groups received medical treatment and PT, OT and ST exercise,and Group A received cognitive rehabilitation exercise additionally. Before and after treatment, the cognitive ability was evaluated with Loewenstein Occupational Therapy Cognitive Assessment Battery (LOTCA) and activity of daily living (ADL) with Functional Independence Measure (FIM).ResultsGroup A significantly improved cognitive ability (P<0.01), ADL (P<0.05) and general subjective impression compared with Group B. Conclusions The cognitive rehabilitation exercise is effective on patients with mild vascular dementia.

A total of 175 patients with type 2 diabetes mellitus (T2DM) were composed of 69 with normoalbuminuria,60 with microalbuminuria,and 46 with macroalbuminuria.The control group consisted of 64 healthy individuals.Serum YKL-40 levels were determined with ELISA method and related metabolic data were collected.Serum YKL-40 levels were significantly higher in T2DM group than in control group(P＜0.01).Significant correlations of YKL-40 were found with the ratio of microalbuminuria to uric creatinine(r=0.677,P＜0.01),HbA1C (r =0.562,P＜0.01),systolic blood pressure (r =0.372,P =0.001),HOMA-IR (r =0.460,P =0.001),low density lipoprotein-cholesterol (r=0.304,P=0.012),age(r=0.260,P=0.015),blood uric acid (r=0.329,P=0.018),and high density lipoprotein-cholesterol (r=-0.247,P=0.032).YKL-40 may play a role in the occurrence and development of diabetic nephropathy.

0.05).Tight integration was found between the two materials in the two groups and there was no distinct interface examined by SEM.Conclusions:GP-084 cellular silicone elastomer and SY-1 silicone elastomer may be adhered completly.

Objective: To verify whether there exists melatoni n(Mel) receptor in human embryonic nervous system. Methods: Spec ific binding of Mel to embryonic brain and spinal cord was measured by radioliga nd binding assay. Results: 125　I-Mel binding s ites in optomeninx was the most, in eptochiasm and sniff ball was next; GTPγS d ose-de pendently inhibited the binding. Conclusion: The results demonst rate the presence of specific binding of Mel in human embryonic brain and spinal cord. GTPγS has some effect on 125　I-Mel specific binding,support ing the theory that Mel receptor is coupled to inhibitory G-proteins.

OBJECTIVE: To provide reference for the prevention of authority dissimilation of drug registration.METHODS: The economic model concerning drug registration was constructed with principal-agent theory.RESULTS: The occurrence of authority dissimilation of drug registration could be cut down by reducing public monitoring costs,improving the rate of prosecution and increasing the costs for dealing with moral risks.CONCLUSION: The authority dissimilation could be effectively prevented by balancing authority for drug registration,improving transparency of drug registration and supervisory system.