AIM:To compare whether aphakic contact lenses or secondary iris-claw intraocular lenses are superior in the refractive management post-pars plana vitreolensectomy in a pedigree with an FBN1 mutation causing non-syndro...AIM:To compare whether aphakic contact lenses or secondary iris-claw intraocular lenses are superior in the refractive management post-pars plana vitreolensectomy in a pedigree with an FBN1 mutation causing non-syndromic ectopia lentis(NSEL)with retinal detachment(RD).METHODS:Eight affected individuals had pars plana vitreolensectomy for bilateral ectopia lentis(EL).Twelve eyes of 6 patients had secondary iris-claw intraocular lenses inserted and 4 eyes of 2 patients were managed with contact lenses.Rhegmatogenous retinal detachment(RRD)was treated when necessary.Pre-and post-operative assessment included visual acuity,endothelial cell count and dilated fundal examination.RESULTS:Macula-on RRD was present in all individuals>18 y,64%(7/11 eyes)presenting post-vitreolensectomy with 57%having bilateral non-synchronous RRD.Surgical aphakia was managed with iris-fixated intraocular lenses(IOL group,n=6),or contact lenses(CL group,n=2).Visual acuity≥0.3 log MAR(driving standard)was achieved in 75%of IOL group eyes and 25%of the CL group eyes.Mean loss of corneal endothelial cell count in the IOL group was 4%at 2 y post-operative.CONCLUSION:In this cohort,refractive management with iris-claw IOLs provided superior outcomes to contact lenses and the authors recommend this as the optimal refractive correction in EL patients.展开更多
AIM： To compare IOPen and ICare rebound tonometry to Goldmann applanation tonometry（GAT） according to International Standards Organization（ISO） 8612 criteria.METHODS： Totally 191 eyes（n =107 individuals） were ...AIM： To compare IOPen and ICare rebound tonometry to Goldmann applanation tonometry（GAT） according to International Standards Organization（ISO） 8612 criteria.METHODS： Totally 191 eyes（n =107 individuals） were included. Criteria of ISO 8612 were fulfilled： 3 clusters of IOP, measured by GAT, were formed. The GAT results were given as mean±standard deviation.RESULTS： GAT（19.7±0.5 mm Hg） showed a significant correlation to ICare（19.8±0.5 mm Hg）（r =0.547, P 〈0.001）and IOPen（19.5 ±0.5 mm Hg）（r =0.526, P 〈0.001）.According to ISO 8612 criteria in all 3 IOP groups the number of outliers（of the 95% limits of agreement）exceeded 5% for ICare and IOPen vs GAT： No.1（n =68）29.4% and 22.1%, No.2（n =62） 35.5% and 37.1%, No.3（n =61） 26.2% and 42.6%, respectively.CONCLUSION： The strict requirements of the ISO 8612 are not fulfilled in a glaucoma collective by ICare and IOPen at present. As long as the Goldmann tonometry is applicable it should be used first of all for reproducible IOP readings. ICare and IOPen tonometry should be considered as an alternative tool, if application of Goldmann tonometry is not possible.展开更多
AIM： To evaluate the inhibitory effects of apigenin and kaempferol on the uptake of several important solute carrier （SLC） transporters.METHODS： Various SLC transporters including the essential human organic anion...AIM： To evaluate the inhibitory effects of apigenin and kaempferol on the uptake of several important solute carrier （SLC） transporters.METHODS： Various SLC transporters including the essential human organic anion transporter 1 （OAT1）, OAT2, OAT3 and OAT4 as well as the important organic cation transporter 1 （OCTN1） and OCTN2, were over-expressed in human embryonic kidney （HEK）-293 cells, a well-established cell model of transporter studies. Transport uptake assay was performed 24 h after the transfection. The transport activity was assessed with the uptake of previously determined transporter model substrates and the inhibitory effect of apigenin and kaempferol was evaluated with the substrate uptake in the presence of 10 μmol/L of each compound. Uptake measurements with varying concentrations of inhibitors （ranged from 0.0001 to 50 μmol/L） were performed to further characterize the inhibitory potency of apigenin and kaempferol. The IC50 value （the concentration that inhibits 50% of the transporter function） of each com-pound was then calculated by the nonlinear regression model of Graphpad Prism 6.0 software.RESULTS： Our data indicated that apigenin could potently inhibit the uptake of estrone-3-sulfate （ES） mediated by the HEK-293 cells expressing OAT2, OAT3 and OAT4 as well as the L-ergothioneine uptake via OCTN1-expressing HEK-293 cells. Among these trans-porters, the most prominent inhibition of apigenin was observed in the case of OAT3. Kaempferol showed sig-nifcant inhibitory effects on the uptake of ES mediated through OAT2 and OAT3. Impaired L-ergothioneine uptake due to the presence of kaempferol was also ob-served in OCTN1-expressing HEK-293 cells. Similar to apigenin, kaempferol showed the most potent inhibito-ry effect on OAT3 as well. To further assess the inhibi-tory potencies of these two compounds on the uptake of ES mediated by OAT3-expressing HEK-293 cells, their IC50 values were then determined. Both chemicals showed pronounced inhibitory potencies on OAT3 with the IC50 values of 1.7 ± 0.1 and 1.0 ± 0.1 μmol/L （P 〈 0.01） for apigenin and kaempferol, respectively.CONCLUSION： Both apigenin and kaempferol are po-tent inhibitors of OAT3; precautions will be necessary when co-administrating them with drugs that are sub-strates of OAT3.展开更多
基金Supported by Health Research Board IrelandScience Foundation Ireland+1 种基金Fighting Blindness IrelandMedical Research Charities Group Ireland。
文摘AIM:To compare whether aphakic contact lenses or secondary iris-claw intraocular lenses are superior in the refractive management post-pars plana vitreolensectomy in a pedigree with an FBN1 mutation causing non-syndromic ectopia lentis(NSEL)with retinal detachment(RD).METHODS:Eight affected individuals had pars plana vitreolensectomy for bilateral ectopia lentis(EL).Twelve eyes of 6 patients had secondary iris-claw intraocular lenses inserted and 4 eyes of 2 patients were managed with contact lenses.Rhegmatogenous retinal detachment(RRD)was treated when necessary.Pre-and post-operative assessment included visual acuity,endothelial cell count and dilated fundal examination.RESULTS:Macula-on RRD was present in all individuals>18 y,64%(7/11 eyes)presenting post-vitreolensectomy with 57%having bilateral non-synchronous RRD.Surgical aphakia was managed with iris-fixated intraocular lenses(IOL group,n=6),or contact lenses(CL group,n=2).Visual acuity≥0.3 log MAR(driving standard)was achieved in 75%of IOL group eyes and 25%of the CL group eyes.Mean loss of corneal endothelial cell count in the IOL group was 4%at 2 y post-operative.CONCLUSION:In this cohort,refractive management with iris-claw IOLs provided superior outcomes to contact lenses and the authors recommend this as the optimal refractive correction in EL patients.
文摘AIM： To compare IOPen and ICare rebound tonometry to Goldmann applanation tonometry（GAT） according to International Standards Organization（ISO） 8612 criteria.METHODS： Totally 191 eyes（n =107 individuals） were included. Criteria of ISO 8612 were fulfilled： 3 clusters of IOP, measured by GAT, were formed. The GAT results were given as mean±standard deviation.RESULTS： GAT（19.7±0.5 mm Hg） showed a significant correlation to ICare（19.8±0.5 mm Hg）（r =0.547, P 〈0.001）and IOPen（19.5 ±0.5 mm Hg）（r =0.526, P 〈0.001）.According to ISO 8612 criteria in all 3 IOP groups the number of outliers（of the 95% limits of agreement）exceeded 5% for ICare and IOPen vs GAT： No.1（n =68）29.4% and 22.1%, No.2（n =62） 35.5% and 37.1%, No.3（n =61） 26.2% and 42.6%, respectively.CONCLUSION： The strict requirements of the ISO 8612 are not fulfilled in a glaucoma collective by ICare and IOPen at present. As long as the Goldmann tonometry is applicable it should be used first of all for reproducible IOP readings. ICare and IOPen tonometry should be considered as an alternative tool, if application of Goldmann tonometry is not possible.
基金Supported by Internal funding from Faculty of Pharmacy,the University of Sydney,Australia
文摘AIM： To evaluate the inhibitory effects of apigenin and kaempferol on the uptake of several important solute carrier （SLC） transporters.METHODS： Various SLC transporters including the essential human organic anion transporter 1 （OAT1）, OAT2, OAT3 and OAT4 as well as the important organic cation transporter 1 （OCTN1） and OCTN2, were over-expressed in human embryonic kidney （HEK）-293 cells, a well-established cell model of transporter studies. Transport uptake assay was performed 24 h after the transfection. The transport activity was assessed with the uptake of previously determined transporter model substrates and the inhibitory effect of apigenin and kaempferol was evaluated with the substrate uptake in the presence of 10 μmol/L of each compound. Uptake measurements with varying concentrations of inhibitors （ranged from 0.0001 to 50 μmol/L） were performed to further characterize the inhibitory potency of apigenin and kaempferol. The IC50 value （the concentration that inhibits 50% of the transporter function） of each com-pound was then calculated by the nonlinear regression model of Graphpad Prism 6.0 software.RESULTS： Our data indicated that apigenin could potently inhibit the uptake of estrone-3-sulfate （ES） mediated by the HEK-293 cells expressing OAT2, OAT3 and OAT4 as well as the L-ergothioneine uptake via OCTN1-expressing HEK-293 cells. Among these trans-porters, the most prominent inhibition of apigenin was observed in the case of OAT3. Kaempferol showed sig-nifcant inhibitory effects on the uptake of ES mediated through OAT2 and OAT3. Impaired L-ergothioneine uptake due to the presence of kaempferol was also ob-served in OCTN1-expressing HEK-293 cells. Similar to apigenin, kaempferol showed the most potent inhibito-ry effect on OAT3 as well. To further assess the inhibi-tory potencies of these two compounds on the uptake of ES mediated by OAT3-expressing HEK-293 cells, their IC50 values were then determined. Both chemicals showed pronounced inhibitory potencies on OAT3 with the IC50 values of 1.7 ± 0.1 and 1.0 ± 0.1 μmol/L （P 〈 0.01） for apigenin and kaempferol, respectively.CONCLUSION： Both apigenin and kaempferol are po-tent inhibitors of OAT3; precautions will be necessary when co-administrating them with drugs that are sub-strates of OAT3.
