报道1例表现为多系统萎缩小脑型的脊髓小脑性共济失调8型(spinocerebellar ataxia type 8,SCA8)患者。该患者为57岁男性,病程4年,以头晕、共济失调为首发症状,后出现自主神经功能障碍、快速眼动睡眠障碍等表现。神经系统查体提示自主神...报道1例表现为多系统萎缩小脑型的脊髓小脑性共济失调8型(spinocerebellar ataxia type 8,SCA8)患者。该患者为57岁男性,病程4年,以头晕、共济失调为首发症状,后出现自主神经功能障碍、快速眼动睡眠障碍等表现。神经系统查体提示自主神经功能障碍、眼球震颤、构音障碍、共济失调,颅脑核磁共振见脑干、小脑对称性萎缩及脑桥“十字征”。基因检测结果显示ATXN8OS的两个等位基因CTA/CTG重复次数异常增多,确诊为SCA8。治疗上予以改善共济失调、自主神经功能障碍等对症治疗后患者反应良好。SCA8为罕见的运动障碍性疾病,临床异质性高。本报道旨在提示临床医师,SCA8也可表现为自主神经功能障碍、共济失调、脑桥“十字征”等类似多系统萎缩小脑型的特点,临床工作中要避免误诊、漏诊。展开更多
Lumped element lowpass filter(LPF)for ultra-high frequency(UHF)radio frequency(RF)front-end system is presented based on multilayer liquid crystal polymer(LCP).The lumped element LPF can achieve miniaturization and on...Lumped element lowpass filter(LPF)for ultra-high frequency(UHF)radio frequency(RF)front-end system is presented based on multilayer liquid crystal polymer(LCP).The lumped element LPF can achieve miniaturization and one transmission zero on the stopband by the 8-shaped inductor.The lumped element LPF is fabricated on a 4-layer LCP substrate with a compact size of 9 mm×14 mm×0.193 mm.The measured cut off frequency of the lumped element LPF is 0.5 GHz with insertion loss(IL)less than 0.37 dB.Both measured and simulated results suggest that it is a possible candidate for the application of UHF RF front-end system.展开更多
Objective:To investigate effect of orthodontic force on inflammatory periodontal tissue remodeling and expression of IL-6 and IL-8 in rats.Methods:Eighty SD rats were randomly divided into 4 groups,blank control group...Objective:To investigate effect of orthodontic force on inflammatory periodontal tissue remodeling and expression of IL-6 and IL-8 in rats.Methods:Eighty SD rats were randomly divided into 4 groups,blank control group(group A)with 5 rats,treatment normal group(group B)with 25 rats,inflammation control group(group(group C)with 25 rats,inflammation treatment group(group D)with 25 rats.Immunohistochemistry and histomorphometric analysis was performed to measure the expression of IL-6,IL-8 and the firet molar to the recent movement in the distance.Results:The expression of IL-8 reached a maximum on day 5 and declined thereafter in group B;the expression of IL-6 reached a maximum on day 5 in group B.The expression of IL-6 and IL-8 was gradually weakened with time in group C.The expression of IL-6 and IL-8 were high,and reached a maximum on day 5 and declined thereafter in group D.AD of positive cells in group D were higher than group B at each time point(P<0.05).The time which 0.49 N orthodontic force was loaded was longer,orthodontic tooth movement distance was greater.Movement distance in group D were longer than group B(P<0.05).Conclusions:Orthodontic force as well as inflammatory stimulus can evoke the expression of IL-6 and IL-8.Under the combined effects of inflammation and orthodontic force,the expression of IL-6,IL-8will increase.展开更多
文摘报道1例表现为多系统萎缩小脑型的脊髓小脑性共济失调8型(spinocerebellar ataxia type 8,SCA8)患者。该患者为57岁男性,病程4年,以头晕、共济失调为首发症状,后出现自主神经功能障碍、快速眼动睡眠障碍等表现。神经系统查体提示自主神经功能障碍、眼球震颤、构音障碍、共济失调,颅脑核磁共振见脑干、小脑对称性萎缩及脑桥“十字征”。基因检测结果显示ATXN8OS的两个等位基因CTA/CTG重复次数异常增多,确诊为SCA8。治疗上予以改善共济失调、自主神经功能障碍等对症治疗后患者反应良好。SCA8为罕见的运动障碍性疾病,临床异质性高。本报道旨在提示临床医师,SCA8也可表现为自主神经功能障碍、共济失调、脑桥“十字征”等类似多系统萎缩小脑型的特点,临床工作中要避免误诊、漏诊。
基金Supported by the Shaanxi Provincial Innovation Team Project(2020TD-019)the Xi'an Sciences Plan Project(21XJZZ0075)。
文摘Lumped element lowpass filter(LPF)for ultra-high frequency(UHF)radio frequency(RF)front-end system is presented based on multilayer liquid crystal polymer(LCP).The lumped element LPF can achieve miniaturization and one transmission zero on the stopband by the 8-shaped inductor.The lumped element LPF is fabricated on a 4-layer LCP substrate with a compact size of 9 mm×14 mm×0.193 mm.The measured cut off frequency of the lumped element LPF is 0.5 GHz with insertion loss(IL)less than 0.37 dB.Both measured and simulated results suggest that it is a possible candidate for the application of UHF RF front-end system.
基金supported by Department of Science and Technology in Henan Province(No 122300410407)
文摘Objective:To investigate effect of orthodontic force on inflammatory periodontal tissue remodeling and expression of IL-6 and IL-8 in rats.Methods:Eighty SD rats were randomly divided into 4 groups,blank control group(group A)with 5 rats,treatment normal group(group B)with 25 rats,inflammation control group(group(group C)with 25 rats,inflammation treatment group(group D)with 25 rats.Immunohistochemistry and histomorphometric analysis was performed to measure the expression of IL-6,IL-8 and the firet molar to the recent movement in the distance.Results:The expression of IL-8 reached a maximum on day 5 and declined thereafter in group B;the expression of IL-6 reached a maximum on day 5 in group B.The expression of IL-6 and IL-8 was gradually weakened with time in group C.The expression of IL-6 and IL-8 were high,and reached a maximum on day 5 and declined thereafter in group D.AD of positive cells in group D were higher than group B at each time point(P<0.05).The time which 0.49 N orthodontic force was loaded was longer,orthodontic tooth movement distance was greater.Movement distance in group D were longer than group B(P<0.05).Conclusions:Orthodontic force as well as inflammatory stimulus can evoke the expression of IL-6 and IL-8.Under the combined effects of inflammation and orthodontic force,the expression of IL-6,IL-8will increase.
