Background Cotton fiber is a model tissue for studying microtubule-associated proteins(MAPs).The Xklp2(TPX2)proteins that belong to the novel MAPs member mainly participate in the formation and development of microtub...Background Cotton fiber is a model tissue for studying microtubule-associated proteins(MAPs).The Xklp2(TPX2)proteins that belong to the novel MAPs member mainly participate in the formation and development of microtubule(MT).However,there is a lack of studies concerning the systematic characterization of the TPX2 genes family in cotton.Therefore,the identification and portrayal of G.hirsutum TPX2 genes can provide key targets for molecular manipula-tion in the breeding of cotton fiber improvement.Result In this study,TPX2 family genes were classified into two distinct subclasses TPXLs and MAP genes WAVE DAMP-ENED2-LIKE(WDLs)and quite conservative in quantity.GhWDL3 was significantly up-regulated in 15 days post anthe-sis fibers of ZRI-015(an upland cotton with longer and stronger fiber).GhWDL3 promotes all stem hairs to become straight when overexpressed in Arabidopsis,which may indirectly regulate cotton fiber cell morphology during fiber development.Virus induced gene silencing(VIGS)results showed that GhWDL3 inhibited fiber cell elongation at fiber development periods through regulating the expression of cell wall related genes.Conclusion These results reveal that GhWDL3 regulated cotton fiber cell elongation and provide crucial information for the further investigation in the regulatory mechanisms/networks of cotton fiber length.展开更多
目的探讨神经根造影加封闭(neurography and nerve root sealing,NNRS)的精确诊断在脊柱内镜镜下融合(Endo-P/TLIF)治疗多节段腰椎管狭窄合并腰椎失稳症中的应用。方法收集从2022年1月1日至6月21日广西中医药大学第一附属医院住院的多...目的探讨神经根造影加封闭(neurography and nerve root sealing,NNRS)的精确诊断在脊柱内镜镜下融合(Endo-P/TLIF)治疗多节段腰椎管狭窄合并腰椎失稳症中的应用。方法收集从2022年1月1日至6月21日广西中医药大学第一附属医院住院的多节段腰椎管狭窄合并腰椎失稳的患者共60例,所有患者术前均行神经根封闭造影确认责任节段并对其行Endo-P/TLIF治疗,随访6个月。记录患者的年龄、性别、病程、手术时间、术中出血、住院时间、下床时间;术前、术后、术后3个月和术后6个月的VAS评分、ODI评分、JOA评分、腰椎前凸角、椎间高度、硬膜横断面积、骶骨倾斜角、骨盆投射角、骨盆倾斜角;MRI提示、神经根封闭造影确认的责任节段和最终减压时的单节段、双节段、3节段及以上的例数,并进行统计学分析。结果所有患者均顺利完成手术,随访6个月过程中1例患者未按时复诊,1例患者失联,最终58例患者随访资料完整纳入统计。术后6个月改善率优55例,良2例,好转1例,总有效率100%。通过NNRS的责任节段得出单侧单节段、双侧单节段的责任神经节段明显多于腰椎MRI显示节段数,得出单侧、双侧双节段和3节段及以上的责任神经节段明显少于腰椎MRI显示节段数差异有统计学意义(P<0.05);术后VAS评分、ODI评分、JOA评分,VAS评分、ODI评分、JOA评分、腰椎前凸角、椎间高度、硬膜横断面积、骶骨倾斜角、骨盆倾斜角与术前相比差异均有统计学意义(P<0.05);骨盆投射角与术前比较差异无统计学意义(P>0.05),但仍有明显的改善。结论选择性NNRS的精确诊断的方法,能够在术前确认责任神经节段,在精确诊断的基础上运用Endo-P/TLIF手术方式治疗多节段腰椎管狭窄合并腰椎失稳症,责任节段精细减压,明显减小创伤和出血,缩短了住院时间,良好地恢复脊柱生理曲度,提高临床疗效,值得临床中广泛运用。展开更多
基金supported by the National Key Research and Development Program of China(2022YFD1200300)China Agriculture Research System(CARS-15-01).
文摘Background Cotton fiber is a model tissue for studying microtubule-associated proteins(MAPs).The Xklp2(TPX2)proteins that belong to the novel MAPs member mainly participate in the formation and development of microtubule(MT).However,there is a lack of studies concerning the systematic characterization of the TPX2 genes family in cotton.Therefore,the identification and portrayal of G.hirsutum TPX2 genes can provide key targets for molecular manipula-tion in the breeding of cotton fiber improvement.Result In this study,TPX2 family genes were classified into two distinct subclasses TPXLs and MAP genes WAVE DAMP-ENED2-LIKE(WDLs)and quite conservative in quantity.GhWDL3 was significantly up-regulated in 15 days post anthe-sis fibers of ZRI-015(an upland cotton with longer and stronger fiber).GhWDL3 promotes all stem hairs to become straight when overexpressed in Arabidopsis,which may indirectly regulate cotton fiber cell morphology during fiber development.Virus induced gene silencing(VIGS)results showed that GhWDL3 inhibited fiber cell elongation at fiber development periods through regulating the expression of cell wall related genes.Conclusion These results reveal that GhWDL3 regulated cotton fiber cell elongation and provide crucial information for the further investigation in the regulatory mechanisms/networks of cotton fiber length.
文摘目的探讨神经根造影加封闭(neurography and nerve root sealing,NNRS)的精确诊断在脊柱内镜镜下融合(Endo-P/TLIF)治疗多节段腰椎管狭窄合并腰椎失稳症中的应用。方法收集从2022年1月1日至6月21日广西中医药大学第一附属医院住院的多节段腰椎管狭窄合并腰椎失稳的患者共60例,所有患者术前均行神经根封闭造影确认责任节段并对其行Endo-P/TLIF治疗,随访6个月。记录患者的年龄、性别、病程、手术时间、术中出血、住院时间、下床时间;术前、术后、术后3个月和术后6个月的VAS评分、ODI评分、JOA评分、腰椎前凸角、椎间高度、硬膜横断面积、骶骨倾斜角、骨盆投射角、骨盆倾斜角;MRI提示、神经根封闭造影确认的责任节段和最终减压时的单节段、双节段、3节段及以上的例数,并进行统计学分析。结果所有患者均顺利完成手术,随访6个月过程中1例患者未按时复诊,1例患者失联,最终58例患者随访资料完整纳入统计。术后6个月改善率优55例,良2例,好转1例,总有效率100%。通过NNRS的责任节段得出单侧单节段、双侧单节段的责任神经节段明显多于腰椎MRI显示节段数,得出单侧、双侧双节段和3节段及以上的责任神经节段明显少于腰椎MRI显示节段数差异有统计学意义(P<0.05);术后VAS评分、ODI评分、JOA评分,VAS评分、ODI评分、JOA评分、腰椎前凸角、椎间高度、硬膜横断面积、骶骨倾斜角、骨盆倾斜角与术前相比差异均有统计学意义(P<0.05);骨盆投射角与术前比较差异无统计学意义(P>0.05),但仍有明显的改善。结论选择性NNRS的精确诊断的方法,能够在术前确认责任神经节段,在精确诊断的基础上运用Endo-P/TLIF手术方式治疗多节段腰椎管狭窄合并腰椎失稳症,责任节段精细减压,明显减小创伤和出血,缩短了住院时间,良好地恢复脊柱生理曲度,提高临床疗效,值得临床中广泛运用。
