This is a prospective interventional clinical study evaluating intraocular inflammation developed after Ultrasound Cyclo Plasty(UCP) for the treatment of glaucoma. Eighteen eyes of 18 patients were treated with UCP se...This is a prospective interventional clinical study evaluating intraocular inflammation developed after Ultrasound Cyclo Plasty(UCP) for the treatment of glaucoma. Eighteen eyes of 18 patients were treated with UCP second-generation probes(Eye OP1). After treatment, the mean intraocular pressure(IOP) significantly decreased from 26.8±7.2 to 18.8±6.1 mm Hg at day 1 and to 14.7±3.4 mm Hg at month 6(all P<0.001). Mean laser flare-cell photometry value steeply increased after surgery from 12.1±7.5 to 64.1±53.9 ph/ms(P=0.001) at day 1, and then progressively decreased to respectively 60.6±49.7 at day 7, 43.5±38.5 at day 14 and 28.2±18.3 at month 1(all P<0.05), returning at levels similar to baseline ones at month 3 and month 6(respectively 16.7±6.2 and 12.8±10.2, both P>0.05). A significant negative correlation was found between postoperative increase of aqueous flare values and anterior chamber depth(R=-0.568, P=0.014). This timeframe may be considered reasonable for repeating UCP treatment, when required.展开更多
Cyclodextrin was pretreated by methylaluminoxane (MAO) and subsequently reacted with 8 aminoquinoline nickel dichloride complex to yield the supported catalyst, which was characterized by ICP, IR and XPS methods. Usi...Cyclodextrin was pretreated by methylaluminoxane (MAO) and subsequently reacted with 8 aminoquinoline nickel dichloride complex to yield the supported catalyst, which was characterized by ICP, IR and XPS methods. Using MAO as cocatalyst, the catalytic activity of this supported catalyst was investigated at various reaction temperature and Al/Ni molecular ratio. The results showed that, despite possessing a number of polar groups, the supported catalyst displayed relatively high activity over 1×10 5 g ethylene/(mol Ni·h) under mild conditions.展开更多
Halogenation of the potassium or silver salts of bis(trifluoromethanesulfonyl)methane (CF3SO2)2CH2 and its cyclo analogues 1 with N-fluoro-bis(trifluoromethanesulfonyl)imine [(CF3SO3)2NF], chlorine or bromine gave goo...Halogenation of the potassium or silver salts of bis(trifluoromethanesulfonyl)methane (CF3SO2)2CH2 and its cyclo analogues 1 with N-fluoro-bis(trifluoromethanesulfonyl)imine [(CF3SO3)2NF], chlorine or bromine gave good yields of the corresponding α-halo disulfone (CF3SO2)2CHX and cyclo analogues 9, 10. The chemical transformation of these fluorinated α-halo-disulfones are described.展开更多
An easy and mild way to construct 13-hydroxy-9,15-cyclo GA skeletons was reported and it could be used as a general protocol in the synthesis of GAs with this structure.
Pyrolysis of polytrifluorochloroethylene under reduced pressure has given a series of low molecular weight perhalocarbons; nevertheless, study of the separation and identification of these pyrolytic products has been ...Pyrolysis of polytrifluorochloroethylene under reduced pressure has given a series of low molecular weight perhalocarbons; nevertheless, study of the separation and identification of these pyrolytic products has been rather scarce. Recently we reported the isolation and characterization of 4,4-dichloroperfluorobutene-1 from the pyrolytic mixture. The present note deals with the separation and structural determination of some other components. From the relatively low boiling fractions of the pyrolytic mixture about twenty pure compounds were separated by fractional distillation and preparative gas chromatography. Among these perhalocarbons characterized, five are perhaloalkanes, six mono-olefins, one cyclo-olefin, and two dienes. Besides the cyclo-olefin, 4-chloroperfluorocyclopentene,展开更多
文摘This is a prospective interventional clinical study evaluating intraocular inflammation developed after Ultrasound Cyclo Plasty(UCP) for the treatment of glaucoma. Eighteen eyes of 18 patients were treated with UCP second-generation probes(Eye OP1). After treatment, the mean intraocular pressure(IOP) significantly decreased from 26.8±7.2 to 18.8±6.1 mm Hg at day 1 and to 14.7±3.4 mm Hg at month 6(all P<0.001). Mean laser flare-cell photometry value steeply increased after surgery from 12.1±7.5 to 64.1±53.9 ph/ms(P=0.001) at day 1, and then progressively decreased to respectively 60.6±49.7 at day 7, 43.5±38.5 at day 14 and 28.2±18.3 at month 1(all P<0.05), returning at levels similar to baseline ones at month 3 and month 6(respectively 16.7±6.2 and 12.8±10.2, both P>0.05). A significant negative correlation was found between postoperative increase of aqueous flare values and anterior chamber depth(R=-0.568, P=0.014). This timeframe may be considered reasonable for repeating UCP treatment, when required.
基金ProjectsupportedbytheCoreResearchforEngineeringInnovation (No .KGCX2 2 0 3 )fromtheChineseAcademyofSciences theNationalNat uralScienceFoundationofChina (No .2 0 2 72 0 62 )and"OneHundredTalents"FundforWen HuaSun
文摘Cyclodextrin was pretreated by methylaluminoxane (MAO) and subsequently reacted with 8 aminoquinoline nickel dichloride complex to yield the supported catalyst, which was characterized by ICP, IR and XPS methods. Using MAO as cocatalyst, the catalytic activity of this supported catalyst was investigated at various reaction temperature and Al/Ni molecular ratio. The results showed that, despite possessing a number of polar groups, the supported catalyst displayed relatively high activity over 1×10 5 g ethylene/(mol Ni·h) under mild conditions.
基金Project (No. 29632003 and No. 29672041) supported by the National Natural Science Foundation of China.
文摘Halogenation of the potassium or silver salts of bis(trifluoromethanesulfonyl)methane (CF3SO2)2CH2 and its cyclo analogues 1 with N-fluoro-bis(trifluoromethanesulfonyl)imine [(CF3SO3)2NF], chlorine or bromine gave good yields of the corresponding α-halo disulfone (CF3SO2)2CHX and cyclo analogues 9, 10. The chemical transformation of these fluorinated α-halo-disulfones are described.
基金partly supported by the Natural Science Foundation of Yunnan Provence.(No.2000B0001 R).
文摘An easy and mild way to construct 13-hydroxy-9,15-cyclo GA skeletons was reported and it could be used as a general protocol in the synthesis of GAs with this structure.
文摘Pyrolysis of polytrifluorochloroethylene under reduced pressure has given a series of low molecular weight perhalocarbons; nevertheless, study of the separation and identification of these pyrolytic products has been rather scarce. Recently we reported the isolation and characterization of 4,4-dichloroperfluorobutene-1 from the pyrolytic mixture. The present note deals with the separation and structural determination of some other components. From the relatively low boiling fractions of the pyrolytic mixture about twenty pure compounds were separated by fractional distillation and preparative gas chromatography. Among these perhalocarbons characterized, five are perhaloalkanes, six mono-olefins, one cyclo-olefin, and two dienes. Besides the cyclo-olefin, 4-chloroperfluorocyclopentene,
