为探讨中药复方多糖(compound Chinese herbal medicine polysaccharides,cCHMPS)对不同MHC B-LβⅡ基因型鸡免疫调节作用的影响,采用PCR-SSCP方法将200羽白羽肉鸡按不同MHC B-LβⅡ基因型分组,采集不同MHC B-LβⅡ基因型鸡的外周血淋...为探讨中药复方多糖(compound Chinese herbal medicine polysaccharides,cCHMPS)对不同MHC B-LβⅡ基因型鸡免疫调节作用的影响,采用PCR-SSCP方法将200羽白羽肉鸡按不同MHC B-LβⅡ基因型分组,采集不同MHC B-LβⅡ基因型鸡的外周血淋巴细胞,分别加入终剂量为100、75、50、0μg/mL的cCHMPS,共培养24h,采用实时荧光定量PCR方法检测cCHMPS对鸡淋巴细胞NF-κB、TNF-α、IL-6mRNA表达量的影响。结果显示:与对照组相比,cCHMPS能显著增强不同MHC B-LβⅡ基因型鸡淋巴细胞NF-κB、TNF-α、IL-6mRNA的表达量(P<0.05)。并且同一基因型鸡中,当cCHMPS剂量为50μg/mL时,AB、AA基因型鸡淋巴细胞NF-κB、TNF-α、IL-6mRNA表达量显著高于其他剂量组(P<0.05);AC基因型鸡淋巴细胞NF-κB、IL-6mRNA的表达量显著高于其他剂量组(P<0.05);AC基因型鸡淋巴细胞TNF-αmRNA的表达量在cCHMPS为100μg/mL时显著高于其他剂量组(P<0.05)。综上所述,cCHMPS能不同程度的促进各MHC B-LβⅡ基因型鸡NF-κB、TNF-α、IL-6mRNA的表达,且不同MHC B-LβⅡ基因型鸡淋巴细胞最适中药复方多糖免疫调节剂量不同。展开更多
Objective The aim of this study was to investigate macular perfusion changes and ganglion cell complex(GCC)loss in patients with unexplained visual loss following vitrectomy and silicone oil(SO)tamponade,and to evalua...Objective The aim of this study was to investigate macular perfusion changes and ganglion cell complex(GCC)loss in patients with unexplained visual loss following vitrectomy and silicone oil(SO)tamponade,and to evaluate the correlation between retinal blood flow and GCC loss using optical coherence tomography angiography(OCTA)and optical coherence tomography(OCT).Methods This retrospective study included seven eyes(seven patients)with unexpected visual loss after vitrectomy and SO tamponade.OCTA was used to evaluate the alterations in retinal vessel density(VD)in the superficial capillary plexus(SCP),deep capillary plexus(DCP),and radial peripapillary capillary plexus(RPCP).OCT was used to measure the thickness of GCC and retinal nerve fiber layer(RNFL).Medical records of patients were reviewed.Results Quantitative analysis of OCTA images revealed a significant reduction in SCP VD in the affected eyes compared with the controls(all sections P<0.05).No difference was found in GCC thickness,but FLV(focal loss volume)and GLV(global loss volume)were significantly higher in the affected eyes(both P<0.001).SCP VD was inversely correlated with FLV and GLV.Conclusions Silicone oil-related severe visual loss was associated with superficial retinal microvasculature damage and ganglion cell apoptosis.展开更多
基金supported by Capital Medical University Affiliated Beijing Tongren Hospital Key Medical Development Plan[trzdyxzy201801].
文摘Objective The aim of this study was to investigate macular perfusion changes and ganglion cell complex(GCC)loss in patients with unexplained visual loss following vitrectomy and silicone oil(SO)tamponade,and to evaluate the correlation between retinal blood flow and GCC loss using optical coherence tomography angiography(OCTA)and optical coherence tomography(OCT).Methods This retrospective study included seven eyes(seven patients)with unexpected visual loss after vitrectomy and SO tamponade.OCTA was used to evaluate the alterations in retinal vessel density(VD)in the superficial capillary plexus(SCP),deep capillary plexus(DCP),and radial peripapillary capillary plexus(RPCP).OCT was used to measure the thickness of GCC and retinal nerve fiber layer(RNFL).Medical records of patients were reviewed.Results Quantitative analysis of OCTA images revealed a significant reduction in SCP VD in the affected eyes compared with the controls(all sections P<0.05).No difference was found in GCC thickness,but FLV(focal loss volume)and GLV(global loss volume)were significantly higher in the affected eyes(both P<0.001).SCP VD was inversely correlated with FLV and GLV.Conclusions Silicone oil-related severe visual loss was associated with superficial retinal microvasculature damage and ganglion cell apoptosis.
