Our previous ifndings have demonstrated that acupuncture at the Taixi （KI3） acupoint in healthy youths can activate neurons in cognitive-related cerebral cortex. Here, we investigated whether acupuncture at this acu...Our previous ifndings have demonstrated that acupuncture at the Taixi （KI3） acupoint in healthy youths can activate neurons in cognitive-related cerebral cortex. Here, we investigated whether acupuncture at this acupoint in elderly patients with mild cognitive impairment can also activate neurons in these regions. Resting state and task-related functional magnetic resonance imaging showed that the pinprick senstation of acupuncture at the Taixi acupoint differed signiifcantly between elderly patients with mild cognitive impairment and healthy elderly controls. Results showed that 20 brain regions were activated in both groups of participants, including the bi-lateral anterior cingulate gyrus （Brodmann areas [BA] 32, 24）, left medial frontal cortex （BA 9, 10, 11）, left cuneus （BA 19）, left middle frontal gyrus （BA 11）, left lingual gyrus （BA 18）, right medial frontal gyrus （BA 11）, bilateral inferior frontal gyrus （BA 47）, left superior frontal gyrus （BA11）, right cuneus （BA 19, 18）, right superior temporal gyrus （BA 38）, left subcallosal gyrus （BA 47）, bilateral precuneus （BA 19）, right medial frontal gyrus （BA 10）, right superior frontal （BA 11）, left cingulate gyrus （BA 32）, left precentral gyrus （BA 6）, and right fusiform gyrus （BA 19）. These results suggest that acupuncture at the Taixi acupoint in elderly patients with mild cogni-tive impairment can also activate some brain regions.展开更多
目的通过癌症基因组图谱(The Cancer Genome Atlas,TCGA)数据库分析弥漫大B细胞淋巴瘤(diffuse large B-cell lymphoma,DLBCL)中铁死亡相关基因的表达及其与程序性死亡受体配体-1(programmed death ligand-1,PD-L1)和免疫细胞的关系,为D...目的通过癌症基因组图谱(The Cancer Genome Atlas,TCGA)数据库分析弥漫大B细胞淋巴瘤(diffuse large B-cell lymphoma,DLBCL)中铁死亡相关基因的表达及其与程序性死亡受体配体-1(programmed death ligand-1,PD-L1)和免疫细胞的关系,为DLBCL的治疗提供新的靶标。方法通过TCGA数据库查找获得22个铁死亡相关基因。从TCGA数据库获取48例DLBCL(DLBCL组)及54例反应性淋巴结增生患者(对照组)淋巴结标本的铁死亡相关基因以及PD-L1的表达数据。使用Wilcoxon秩和检验进行组间差异性表达分析。基因表达相关性分析采用Spearman相关性分析。采用R软件包pheatmap分析DLBCL中铁死亡相关基因表达与免疫细胞的相关性。采用R软件GSVA包分析铁死亡相关基因表达与磷脂酰肌醇-3-激酶-蛋白激酶B-哺乳动物雷帕霉素靶蛋白(phosphatidylinositol 3 kinase-protein kinase B-mammalian target of rapamycin,PI3K-Akt-mTOR)信号通路的相关性。结果DLBCL中周期素依赖性激酶抑制因子1A(cyclin dependent kinase inhibitor 1A,CDKN1A)、70 kDa热休克蛋白5(heat shock 70 kDa protein 5,HSPA5)、内质膜蛋白复合体亚基2(endoplasmic membrane protein complex subunit 2,EMC2)、溶质载体家族7成员11(solute carrier family 7,member 11,SLC7A11)、金属硫蛋白1G(metallothionein 1G,MT1G)、热休克蛋白B1(heat shock protein B1,HSPB1)、谷胱甘肽过氧化酶4(glutathione peroxidase4,GPX4)、范可尼贫血互补群D2(Fanconi anemia complementary group D2,FANCD2)、柠檬酸合成酶(citrate synthase,CS)、CDGSH铁硫结构域1(CDGSH iron sulfur domain 1,CISD1)、法尼基二磷酸法尼基转移酶1(farnesyl diphosphate farnesyltransferase 1,FDFT1)、SLC1A5、转铁蛋白受体(transferrin receptor,TFRC)、核糖体蛋白L8(ribosomal protein L8,RPL8)、核受体共激活因子4(nuclear receptor coativator 4,NCOA4)、二肽基肽酶Ⅳ(dipeptidyl peptidaseⅣ,DPP4)和花生四烯酸15脂氧合酶(arachidonate-15-lipoxygenase,ALOX15)基因表达均上调(均P<0.05)。免疫细胞相关分析显示,铁死亡相关基因可激活体内巨噬细胞M1(P<0.05)。DLBCL中长链脂酰辅酶A合成酶4(acyl-CoA synthetase long chain family member 4,ACSL4)、CDKN1A、DPP4、EMC2、谷氨酰胺酶2(glutaminase 2,GLS2)、HSPA5、溶血卵磷脂酰基转移酶3(lysophosphatidylcholine acyltransferase 3,LPCAT3)、MT1G、NCOA4、红细胞衍生核因子2样蛋白2(nuclear factor erythroid 2-like-2,NFE2L2)、精脒/精胺N1-乙酰基转移酶1(spermidine/spermine N1-acetyltransferase 1,SAT1)、SLC7A11和TFRC这些铁死亡相关基因的表达均与PD-L1表达呈正相关(均r>0.4,均P<0.05)。铁死亡相关基因LPCAT3、NCOA4和TFRC的表达均与PI3K-AktmTOR通路呈正相关(均r>0.4,均P<0.05)。结论多数铁死亡相关基因在DLBCL组织中高表达,且与PD-L1、免疫浸润及PI3K-Akt-mTOR通路有关。展开更多
Acupuncture can induce changes in the brain. However, the majority of studies to date have focused on a single acupoint at a time. In the present study, we observed activity changes in the brains of healthy volunteers...Acupuncture can induce changes in the brain. However, the majority of studies to date have focused on a single acupoint at a time. In the present study, we observed activity changes in the brains of healthy volunteers before and after acupuncture atTaichong （LR3） andTaixi （KI3） using resting-state functional magnetic resonance imaging. Fifteen healthy volunteers underwent resting-state functional magnetic resonance imaging of the brain 15 minutes before acupuncture, then received acupuncture atTaichong andTaixi using the nail-pressing needle insertion method, after which the needle was retained in place for 30 minutes. Fifteen minutes after withdrawal of the needle, the volunteers underwent a further session of resting-state functional magnetic res-onance imaging, which revealed that the amplitude of low-frequency lfuctuation, a measure of spontaneous neuronal activity, increased mainly in the cerebral occipital lobe and middle occipital gyrus （Brodmann area 18/19）, inferior occipital gyrus （Brodmann area 18） and cuneus （Brodmann area 18）, but decreased mainly in the gyrus rectus of the frontal lobe （Brodmann area 11）, inferi-or frontal gyrus （Brodmann area 44） and the center of the posterior lobe of the cerebellum. The present ifndings indicate that acupuncture atTaichong andTaixi speciifcally promote blood lfow and activation in the brain areas related to vision, emotion and cognition, and inhibit brain areas related to emotion, attention, phonological and semantic processing, and memory.展开更多
Background: Human beta-defensins (HBDs), epithelial-derived antimicrobial peptides, contribute to gingival health and periodontal disease. Particularly, the upregulation of HBD-3 expression in periodontal tissues is d...Background: Human beta-defensins (HBDs), epithelial-derived antimicrobial peptides, contribute to gingival health and periodontal disease. Particularly, the upregulation of HBD-3 expression in periodontal tissues is described to contribute to periodontal tissue regeneration. Specifically, the upregulation of HBD-3 expression in periodontal tissues is described to contribute to periodontal tissue regeneration. But there has been insufficient investigation of the inner epithelium in peri-implantitis, especially the HBD expression patterns as protection against oral infection. Objectives: The purpose of this study was to investigate the histopathological characteristics of the inner implant epithelium in peri-implantitis using histopathological and immunohistochemical methods and to compare it with the inner marginal epithelium in periodontitis. Materials and Methods: The biopsied cases consisted of 10 peri-implantitis, 11 periodontitis, and 10 controls. HE observation, measurement of the thickness of the inner epithelium, and immunohistochemical analysis for Ki-67 and HBD-3 were conducted. Results: Concerning the thickness of the inner epithelium, it was significantly higher in periodontitis (156.2 [138.0, 186.4] μm) than in peri-implantitis and control, 70.7 [67.5, 97.5] μm and 80.7 [76.6, 89.4] μm, respectively (p Conclusion: Decreased production of HBD-3 in keratinocytes composing the inner implant epithelium may be one of the factors affecting tissue repair in peri-implantitis.展开更多
基金supported by the National Natural Science Foundation of China,No.81173354the Natural Science Foundation of Guangdong Province,No.10451810101005862+1 种基金a grant from Guangdong Administration of Traditional Chinese Medicine,No.20111032,20132019the Science and Technology Plan Project of Baoan District,Shenzhen City,No.200902159
文摘Our previous ifndings have demonstrated that acupuncture at the Taixi （KI3） acupoint in healthy youths can activate neurons in cognitive-related cerebral cortex. Here, we investigated whether acupuncture at this acupoint in elderly patients with mild cognitive impairment can also activate neurons in these regions. Resting state and task-related functional magnetic resonance imaging showed that the pinprick senstation of acupuncture at the Taixi acupoint differed signiifcantly between elderly patients with mild cognitive impairment and healthy elderly controls. Results showed that 20 brain regions were activated in both groups of participants, including the bi-lateral anterior cingulate gyrus （Brodmann areas [BA] 32, 24）, left medial frontal cortex （BA 9, 10, 11）, left cuneus （BA 19）, left middle frontal gyrus （BA 11）, left lingual gyrus （BA 18）, right medial frontal gyrus （BA 11）, bilateral inferior frontal gyrus （BA 47）, left superior frontal gyrus （BA11）, right cuneus （BA 19, 18）, right superior temporal gyrus （BA 38）, left subcallosal gyrus （BA 47）, bilateral precuneus （BA 19）, right medial frontal gyrus （BA 10）, right superior frontal （BA 11）, left cingulate gyrus （BA 32）, left precentral gyrus （BA 6）, and right fusiform gyrus （BA 19）. These results suggest that acupuncture at the Taixi acupoint in elderly patients with mild cogni-tive impairment can also activate some brain regions.
基金supported by a grant from the National Key Basic Research and Development Project(973 Program),No.2012CB518504a grant from the National Level Undergraduate Student Innovation Venture Training Project of Local Colleges,No.201212121048a grant from the ThreeStage Key Subject Construction Project of Guangdong Province of China(211 Project),No.(2009)431
文摘Acupuncture can induce changes in the brain. However, the majority of studies to date have focused on a single acupoint at a time. In the present study, we observed activity changes in the brains of healthy volunteers before and after acupuncture atTaichong （LR3） andTaixi （KI3） using resting-state functional magnetic resonance imaging. Fifteen healthy volunteers underwent resting-state functional magnetic resonance imaging of the brain 15 minutes before acupuncture, then received acupuncture atTaichong andTaixi using the nail-pressing needle insertion method, after which the needle was retained in place for 30 minutes. Fifteen minutes after withdrawal of the needle, the volunteers underwent a further session of resting-state functional magnetic res-onance imaging, which revealed that the amplitude of low-frequency lfuctuation, a measure of spontaneous neuronal activity, increased mainly in the cerebral occipital lobe and middle occipital gyrus （Brodmann area 18/19）, inferior occipital gyrus （Brodmann area 18） and cuneus （Brodmann area 18）, but decreased mainly in the gyrus rectus of the frontal lobe （Brodmann area 11）, inferi-or frontal gyrus （Brodmann area 44） and the center of the posterior lobe of the cerebellum. The present ifndings indicate that acupuncture atTaichong andTaixi speciifcally promote blood lfow and activation in the brain areas related to vision, emotion and cognition, and inhibit brain areas related to emotion, attention, phonological and semantic processing, and memory.
文摘Background: Human beta-defensins (HBDs), epithelial-derived antimicrobial peptides, contribute to gingival health and periodontal disease. Particularly, the upregulation of HBD-3 expression in periodontal tissues is described to contribute to periodontal tissue regeneration. Specifically, the upregulation of HBD-3 expression in periodontal tissues is described to contribute to periodontal tissue regeneration. But there has been insufficient investigation of the inner epithelium in peri-implantitis, especially the HBD expression patterns as protection against oral infection. Objectives: The purpose of this study was to investigate the histopathological characteristics of the inner implant epithelium in peri-implantitis using histopathological and immunohistochemical methods and to compare it with the inner marginal epithelium in periodontitis. Materials and Methods: The biopsied cases consisted of 10 peri-implantitis, 11 periodontitis, and 10 controls. HE observation, measurement of the thickness of the inner epithelium, and immunohistochemical analysis for Ki-67 and HBD-3 were conducted. Results: Concerning the thickness of the inner epithelium, it was significantly higher in periodontitis (156.2 [138.0, 186.4] μm) than in peri-implantitis and control, 70.7 [67.5, 97.5] μm and 80.7 [76.6, 89.4] μm, respectively (p Conclusion: Decreased production of HBD-3 in keratinocytes composing the inner implant epithelium may be one of the factors affecting tissue repair in peri-implantitis.
