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Objective To compare the differences of corneal biomechanics in different types of glaucoma and its related influence factors,and to investigate the change trends of cornea biomechanics after the operations.Methods In a prospective comparative case series,61 eyes of 61 acute primary angle-closure glaucoma (APACG)(remission or chronic phase)patients,94 eyes of 94 chronic primary angle-closure glaucoma (CPACG) patients,70 eyes of 70 primary open angle glaucoma (POAG) patients and 64 eyes of 64 age-related cataract (ARC) patients were recruited in Tianjin Eye Hospital from January to July,2017.Corneal biomechanical properties were measured by using Corvis ST.The differences of corneal biomechanics in different types of glaucoma and the change trends after surgeries were assessed;the association between parameters and the age,intraocular pressure after correction (IOPcc),central cornea thickness (CCT),axial length (AL),average corneal diopter (K) were assessed by multiple linear regression analysis.This study followed the Declaration of Helsinki.This study protocol was approved by Ethic Committee of Tianjin Eye Hospital (TJYYLL-2016-17).Written informed consent was obtained from each subject prior to any medical examination.Results Compared with the ARC group,the first applanation velocity (A1V)and second applanation time (A2T) were both smaller in preoperative CPACG,POAG groups (all at P＜0.05);compared with the ARC group and APACG group,second applanation velocity (A2V) was larger in preoperative CPACG,POAG groups,the differences were all statistically significant (all at P＜0.05).A1V,A2T,deformation amplitude (DA) and peak distance (PD) were negatively correlated with IOPcc (r =-0.494,-0.612,-0.652,-0.277;all at P＜0.05),A2V,first applanation time (A1T) and central curvature radius (CCR) were positively correlated with IOPcc (r =0.508,0.960,0.249;all at P ＜ 0.05);first applanation length (A1 L) and second applanation length (A2L) were negatively correlated with K (r =-0.323,-0.227;both at P＜0.05);A 1 V,A2T and DA were positively correlated with K (r =0.214,0.256,0.242;all at P＜0.05).Compared with preoperative,the A1T and A2V were reduced,A1V,A2T and DA were increased in one month after surgery in CPACG group;the A1T and A2V were reduced,the A2T and DA were increased in one month after surgery in POAG group,and the differences were all statistically significant (all at P＜0.05).Compared with preoperative,there were no statistically significant differences between the parameters in one month after surgery in APACG group and ARC group (all at P ＞0.05).Conclusions CPACG and POAG have poorer ability of corneal deformation,which gradually returns to normal after surgery;because the intraocular pressure of APACG (remission or chronic stage) return to normal after transient elevated stage,the corneal biomechanics is basically similar to ARC,which has no difference between pre-and pos-operation.The parameters of corneal biomechanics are affected by IOPcc and K.
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By means of global budget,the disease-specific scoring method was put in place for both settlement and payment in Huaian,Jiangsu province,for the purpose of cost control by the hospitals.This reform consists of total cost accounting,rational performance-based distribution system,multi-approached regulation of medical behaviors,and individual disease management to regulate medical behavior.These efforts aim at aligning with medical insurance payment reform,so as to improve hospital management,operation quality and socio-economic outcomes.Problems found in practice were also reviewed.
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Objective To investigate the expressions of miR-21 in carcinoma tissue and serum of the patients with papillary thyroid carcinoma (PTC), and to clarify its clinical significance.Methods Real-time PCR was used to detect the expression levels of miR-21 in carcinoma tissue and serum of 46 PTC patients,thyroid tissue and serum of 35 cases of nodular goiter and 18 healthy people. The correlations of miR-21 expression level with the clinicopathological features of PTC patients were analyzed.Results The relative expression levels of miR-21 in carcinoma tissue and serum of the PTC patients were 2.74±1.53 and 0.21±0.08,and they were 0.92±0.81 and 0.08±0.05 in carcinoma tissue and serum of the patients with nodular goiter,0.86 ± 0.39 and 0.07 ± 0.03 in normal papillary thyroid tissue and serum of 18 healthy people.The expression levels of miR-21 in carcinoma tissue and serum of the patients with PTC were higher than those of the patients with nodular goiter and healthy people (P<0.05).The expression level of miR-21 in serum and carcinoma tissue of PTC patients had a positive correlation with the extraglandular invasion,distant metastasis,lymph node metastasis,and TNM stages (P<0.05);and it had no correlation with gender and tumor sizes.Conclusion The expression levels of miR-21 in carcinoma tissue and serum of the PTC patients are increased. The up-regulated expression of serum miR-2 1 is correlated with the clinicopathological features of PTC patients, which indicates that miR-2 1 could be used as a potential marker for early detection of PTC.
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Objective To investigate expressions of albumin during retinal neovascularization in a murine model of oxygen -in-duced retinopathy.Methods C57BL/6J mice were exposed to (75 ±2)%oxygen for 5 days and returned to room air to induce retinal neovascularization .Retinal neovascularization was observed by fluorescence angiography , and was quantified by counting the endotheli-al nuclei protruding into the vitreous cavity after hematoxylin-eosin staining.The blood-retina barrier was evaluated by Western blot a-nalysis of extravasated albumin in the retina .Results In fluorescence angiograms , irregular neovascularization and fluorescein leakage was observed surrounding the unperfused areas in the hypoxic group .Compared to the normoxic group , there was a significant increase in both-side retinal albumin protein levels in the hypoxic group at P 13, P15 , and P17.Conclusions Albumin expression was in-creased in murine retina under hypoxia , and might be used to detect blood-retinal barrier damage of oxygen-induced retinopathy .
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Objective To compare the incidence of pancreatic fistula after hand and stapler suture in preventing pancreatic fistula after distal pancreatectomy.Methods The literatures published before December 2011 were retrieved from SinoMed and electronic database.Prospective controlled trials and retrospective reports were screened out for Meta analysis.The diagnostic criteria of pancreatic fistula were based on the criteria formulated by the International Study group of Pancreatic Fistula.The heterogeneity of the studies was analyzed using the Ⅰ2 test.The data were integrated using the fixed or random effect model.The results of the Meta analysis were presented with odds ratio (OR) and 95％ confidence interval (95％ CI).Results According to the selection criteria,lO literatures were selected which included 1 prospective randomized controlled study,3 prospective nonrandomized controlled studies and 6 retrospective studies.There were 1 441 cases in the hand suture group and 612 cases in the stapler suture group.There was no significant difference in the incidences of the pancreatic fistula between the hand suture group and the stapler suture group (OR =1.10,95％ CI:0.86-1.40,P ＞0.05).Six studies compared the incidences of severe pancreatic fistula (grade B or C) between the hand suture group and the stapler suture group.There were 1 182 cases in the hand suture group and 383 cases in the stapler suture group.There was no significant difference in the incidence of severe pancreatic fistula between the hand suture group and the stapler suture group (OR=1.33,95％CI:0.94-1.88,P＞0.05).Conclusion The efficacies of hand suture and stapler suture in preventing pancreatic fistula after distal pancreatectomy are comparable.Stapler suture provides an another option in distal pancreatectomy.
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ObjectiveTo retrospectively evaluate the efficacy and safety of zoledronic acid and sodium ibandronate in treating bone metastasis in breast cancer patients.MethodsThe study included 47 patients who were treated with zoledronic acid and sodium ibandronate respectively from Aug.2006 to Mar.2011. KaplanMeier curve and Log rank test were adopted to detect the difference in survival time of skeletal related event (SRE) and survival rate between patients treated with different medicine,and x2 test was uscd to rcveal thc rate difference of pain killing effects and adverse effects.Results 1.The total effective rate of pain killing was 88.9％ and 85％ respectively.The difference had no statistical significance(P =0.467).2.The 1,2 and 3-year-survival rate in zoledronic acid group and sodium ibandronate group was 88.7％,44.4％,24.2％vs 94.7％,40.5％,5.8％.The difference had no statistical significance(P =0.744).3.The 2,3,and 4-year-survival rate in zoledronic acid group and sodium ibandronate group was 70.4％,40.7％,23.1％ vs 85％,46.7％,17.5％.The difference had no statistical significance( P =0.994).4.The 1,2 and 3-year SRE-free overall survival rate of the group with metastasis first to bone only was 92％,50.8％,and 23.8％,while the rate of the group with first metastasis to visceral organs was 85.4％,21.4％,and 5.3％ ( P =0.012).5.The 2 and 3-year overall survival rate of the group with metastasis first to bone only was 95.8％ and 74.2％ respectively,while the rate of the group with first metastasis to visceral organs was 56.5％ and 10.1％ ( P ＜0.001 ).The difference of 4 and 5 had statistical significance.The difference of zoledronic acid group and sodium ibandronate group in rate of adverse effects had no statistical significance.Conclusions Compared to sodium ibandronate,zoledronic acid has no superiority in either delaying the occurrence of SRE or improving overall survival rate.The -2are similar in incidence of adverse effects and pain control.The prognosis of patients whose first presentation is complicated by metastasis to other organs is poor.
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Objective To investigate the mechanism of gastric bypass surgery in the treatment of type 2 diabetes mellitus in a rat model. Methods Seventy-two 8-week-old GK rats were randomly divided into operation group, sham operation group, diet control group and control group (18 rats in each group) according to the random number table. Rats in the operation group and the sham operation group received gastric bypass surgery and transection and reanastomosis of the gastrointestinal tract, respectively. The food intake was set as 15 g/d for each rat in the diet control group, while rats in the control group were fed ad libitum. The levels of fasting blood glucose ( FBG), postprandial blood glucose (PPBG) and glucagon-like peptide-1 (GLP-1) were detected before operation and at postoperative week 2, 4 and 8. The levels of PPBG and GLP-1 were detected at postoperative week 2, 4 and 8, then 6 rats of each group were sacrificed to detect the apoptosis of islet B cells using the TUNEL method. All data were analyzed using the t test. Results In the operation group, the preoperative levels of FBG and PPBG were (16.2±0.8)mmol/L and (31.1 ± 1. L)mmol/L, respectively, which were significantly higher than (9.2± 0.6) mmol/L and (13.1 ±0.7) mmol/L at 4 weeks after the operation, and (9. 7 ± 0. 7) mmol/L and (12. 3 ± 0.7) mmol/L at 8 weeks after the operation (t = 20. 7, 49. 7; 18. 8, 39. 0, P < 0.05 ). The levels of FBG and PPBG before the operation and at 4 and 8 weeks after the operation in the operation group were significantly lower than those in the sham operation group, diet control group and control group at corresponding time points (t = 27.7, -57.8; 11.3, -59.9; -27.4, -48.2; -13.2, -52.7; -7.0, -24.9; -18.2, -56.4, P<0.05). In the operation group, the levels of fasting GLP-1 and postprandial GLP-1 were ( 10. 7 ± 1. 0) pmol/L and (42.5 ±1.2)pmol/L, respectively, which were significantly lower than (26. 1 ±0.9)pmol/L and (90.7 ± 1.7)pmol/L at4 weeks after the operation, and (25.3 ± 1.2)pmol/L and (90.4 ±2.0)pmol/L at 8 weeks after the operation (t=42.1, -92.4; -29.1, -72.7, P <0.05). The levels of fasting GLP-1 and postprandial GLP-1 before the operation and at 4 and 8 weeks after the peration in the operation group were significantly higher than those in the sham operation group, diet control group and control group at corresponding time points (t = 48.0, 61.9; 38.0, 62.2; 50.9, 65.2; 37.0, 48. 1; 27.5, 51.6; 17.5, 52.9, P<0.05). The number of the apoptotic islet β cells in the operation group was decreased with time. The apoptosis rates in the operation group, sham operation group, diet control group and control group were 5.9%±0.7% , 47.2%± 1.0% , 21. 1%± 1. 2% , 46.5%±1.4% at 4 weeks after the operation, and 6.3%±1. 1% , 47.2%±1.0% , 21.2%±1.2% and 46.0% ± 1.4% at 8 weeks after the operation. The apoptosis rates in the operation group were significantly lower than those in the sham operation group, diet control group and control group at corresponding time points (t = -82. 2, - 67. 0; - 27. 1, - 22. 4; - 55. 2, - 54. 6, P < 0.05). Conclusion After gastric bypass surgery, the level of blood glucose reduces and the level of GLP-1 increases which significantly inhibit the apoptosis of islet B cells in rats with type 2 diabetes mellitus.
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Objective To investigate the relationship between mammary ductal hyperplasia and ductal carcinoma by detecting the expressions of Notch1 and Cyclin D1 in various histotypic mammary ductal diseases.Methods A total cases of 44 normal ductal tissues,44 usual ductal hyperplasias.40 atypical ductal hyperplasias,42 ductal carcinomas in situ and 51 invasive ductal carcinomas were included in this study.Expressions of Notch1 and Cyclin D1 were detected by S-P immunohistochemistry.Results There was significant difference of expression of Notch1 among the five subgroups of this study(P<0.01);there were significant differences between every two subgroups(P<0.05)except for normal ductal tissues versus usual ductal hyperplasias and ductal carcinomas in situ versus invasive ductal carcinomas(P>0.05).There was also significant difference of expression of CychnD1 amongthe five subgroups of this study(P<0.01),and there were significant difference between every two subgroups(P<0.05)except for normal ductal tissues versus usual ductal hyperplasias and normal ductal tissues versus atypical ductal hyperplasia(P>0.05).The correlation between Notch1 and Cyclin D1 was negative (r=-0.428,P<0.01).Conclusions There is a relationship between mammary ductal hyperplasia and ductal carcinoma.Decrease of Nowhl or increase of Cyclin D1 expressions may promote nmnmmry ductal hyperplasia advancing to manunary ductal carcinoma.
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Objective To investigate the influence of genistein(Gen) on the growth and apoptosis regulation of hepatoma carcinoma cells SMMC-7721.Methods SMMC-7721 cells were divided into three Gen groups treated with different concentrations(5.0,10.0,20.0 mg?L-1) and control group(without Gen).After SMMC-7721 cells were treated for 24 and 48 h,the changes of ultrastructure of cells were observed under electron microscope, MTT was used to detect the inhibitory rate of proliferation of SMMC-7721 cells,flow cytometry was performed to analyze cell phase;immunohistochemistry was used to detect the expression of Caspases-3 protein.Results Compared with control group,chromatin in cellular nucleus became conglomeration or lumping,with chondriosome swelling in Gen groups.With the increasing of Gen concentration,the cellular nucleus became condensed,heterochromatin agglutinating,ground cytoplasm obviously cavitating;with the increase of Gen concentration and prolongation of time,from 24 to 48 h,MTT showed the inhibitory rate of proliferation of SMMC-7721 cells increased in a time-and dose-dependent manner.Flow cytometry analysis showed that with the increase of Gen concentration,the number of cells at G2/M phase increased,the number of cells at S phase decreased and the ratio of G0/G1 also decreased.Immunohistochemistry results showed the expression of protein Caspases-3 increased with the Gen concentration in a dose-dependent manner(P
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<p><b>OBJECTIVE</b>To evaluate the efficacy and safety of meropenem in Chinese patients, we conducted a study for the treatment of patients with lower respiratory tract infections, urinary tract infections and other infections.</p><p><b>METHODS</b>A total of 182 hospitalized patients were enrolled in the study. 90 patients received 500 mg meropenem every 12 hours (or 1 g every 12 hours if necessary) and 92 patients received imipenem/cilastatin 500 mg/500 mg every 12 hours (or 1 g every 12 hours if necessary) by intravenous infusion. The duration of treatment was 7 - 14 days for both groups.</p><p><b>RESULTS</b>Seventy of 90 cases receiving meropenem and 70 of 92 cases receiving imipenem/cilastatin were assessable for clinical efficacy. The overall efficacy rates were 90% for the meropenem group and 87% for the imipenem/cilastatin group, and the bacterial eradication rates were 86% in both groups. 93 (76%) of 123 strains isolated from patients produced beta-lactamases. Adverse drug reactions were evaluated in 72 cases in the meropenem group and 70 cases in the imipenem/cilastatin group. The adverse drug reaction rates were 9.7% and 8.6%, respectively. The results showed that there were no statistical differences between these two groups (P > 0.05).</p><p><b>CONCLUSION</b>Meropenem is effective and safe for the treatment of bacterial infections caused mainly by beta-lactamase-producing strains.</p>
Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Alanine Transaminase , Blood , Aspartate Aminotransferases , Blood , Cilastatin , Therapeutic Uses , Imipenem , Therapeutic Uses , Respiratory Tract Infections , Drug Therapy , Thienamycins , Therapeutic Uses , Urinary Tract Infections , Drug TherapyABSTRACT
Objective To investigate the role of intestinal fatty acid-binding protein(IFABP) as a marker in the (early) diagnosis of intestinal ischemia. Methods SD rats were randomly divided into control group and superior mesenteric artery ligation group (SMA group). Blood samples were collected sequentially at pre-operation, 1, 2 and 4 hours after operation for detecting the activity of IFABP, CK, CK-BB and LDH. Results The activity of IFABP in SMA group elevated 1h and arrived to a peak at 2 hours postoperatively. Compared with control group, all the (levels) of CK, CK-BB and LDH in SMA group were elevated progressively with time after operation. Compared with control group, the significant elevation was at 1, 2 and 4 hours after opration. Conclusions I-FABP is a sensitive and specific marker in the diagnosis of intestinal ischemia.
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Objective To determine the expression of C met protein and microvessel density (MVD) in benign and malignant breast diseases and the relation with the prognosis of the patients. Methods Expression of C met and MVD were detected by immunohistochemical SP method in the histologic sections of 20 benign hyperplasia patients and 70 breast cancer patients. Results Stain of C met was located in the membrane or cytoplasm of epithelia cells.In the benign breast hyperplasia, C met expression was 100%. The stain intensity in breast cancer was stronger than that in the benign hyperplasia, but not statistical significance. The expression of C met was higher in TNM stage Ⅲ cancer than that in stage ⅠandⅡcancer. The stronger expression of C met showed higher MVD and obviously lower survival rate . Coxregression indicated C met and microvessel were prognosis factors. Conclusions C met is expressed in benign and malignant breast disease, C met and MVD are related with survival rate of breast cancer patients , so they are valuable prognosis indicators of breast cancer patients.