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539篇 您的检索式:作者名="KAI J"
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1Divergent expression of bacterial wall sensing toll-like receptors 2 and 4 in colorectal cancer显示文摘AIM To characterize the expression of toll-like receptors(TLR) 2 and 4 in colorectal cancer(CRC) and in normal colorectal mucosa.METHODS We analysed tissue samples from a prospective series of 118 unselected surgically treated patients with CRC. Sections from formalin fixed, paraffin embedded specimens were analysed for TLR2 and TLR4 expression by immunohistochemistry. Two independent assessors evaluated separately expression at the normal mucosa, at the invasive front and the bulk of the carcinoma, and in the lymph node metastases when present. Expression levels in different locations were compared and their associations with clinicopathological features including TNM-stage and the grade of the tumour and 5-year follow-up observations were analysed.RESULTS Normal colorectal epithelium showed a gradient of expression of both TLR2 and TLR4 with low levels in the crypt bases and high levels in the surface. In CRC, expression of both TLRs was present in all cases and in the major proportion of tumour cells. Compared to normal epithelium, TLR4 expression was significantly weaker but TLR2 expression stronger in carcinoma cells. Weak TLR4 expression in the invasive front was associated with distant metastases and worse cancerspecific survival at 5 years. In tumours of the proximal colon the cancer-specific survival at 5 years was 36.9% better with strong TLR4 expression as compared with those with weak expression(P = 0.044). In contrast, TLR2 expression levels were not associated with prognosis. Tumour cells in the lymph node metastases showed higher TLR4 expression and lower TLR2 expression than cells in primary tumours.CONCLUSION Tumour cells in CRC show downregulation of TLR4 and upregulation of TLR2. Low expression of TLR4 in the invasive front predicts poor prognosis and metastatic disease.Karoliina Paarnio Sara Vayrynen Kai Klintrup Pasi Ohtonen Markus J Makinen Jyrki Makela Tuomo J Karttunen 2017World Journal of Gastroenterology2017,23,26:8
2Smad2 mediates Activin/Nodal signaling in mesendoderm differentiation of mouse embryonic stem cells显示文摘尽管发信号的 Activin/Nodal 调整人的胚胎的茎(ES ) 的 pluripotency 细胞,这个发信号怎么在老鼠 ES 细胞行动,仍然保持大部分不清楚。调查这,我们证实了房间拥有活跃调停 Smad2 的 Activin/Nodal 发信号的那老鼠 ES 并且发现调停 Smad2 的 Activin/Nodal 发信号为自强维护是非必需的,但是向 mesendoderm 系为合适的区别被要求。到进内在的机制的获得卓见,联系 Smad2 的基因被染色体宽的染色质 immunoprecipitation 薄片分析识别。结果证明在 Smad2 绑定和 Activin/Nodal 发信号调整之间有 transcriptional 关联,并且发展相关的基因在 Smad2 固定的目标之中被充实。我们进一步在 Activin/Nodal-Smad2 小径下游地行动的老鼠 ES 房间的 mesendoderm 区别作为一个关键播放器识别了 Tapbp。一起拿,我们的调查结果建议发信号的调停 Smad2 的 Activin/Nodal 通过相应发展管理者表示的直接调整安排鼠标 ES 房间的 mesendoderm 系承诺。Teng Fei Shanshan Zhu Kai Xia Jianping Zhang Zhongwei Li Jing-Dong J Han Ye-Guang Chen 2010Cell Research2010,20,12:4
3The Transforming Growth Factor-β Superfamily Member Growth-Differentiation Factor-15 Protects the Heart From Ischemia/Reperfusion Injury显示文摘Tibor Kempf Matthias Eden Jens Strelau Marian Naguib Christian Willenbockel J?rn Tongers J?rg Heineke Daniel Kotlarz Jian Xu Jeffery D. Molkentin Hans W. Niessen Helmut Drexler Kai C. Wollert 2006Circulation Research2006,,3:3
4Does knowledge of physical activity recommendations increase physical activity among Chinese college students? Empirical investigations based on the transtheoretical model显示文摘Background: Based on the transtheoretical model, the current study investigated whether awareness of physical activity(PA) recommendations had an impact on the stages of PA behavior change and levels of PA among Chinese college students.Methods: In Study 1, with a cross-sectional study design, 9826 students were recruited, and their knowledge of international PA recommendations,PA stage distribution, and self-reported PA level were surveyed. Pearson's χ2 test was used to test whether those participants who were aware and not aware of PA guidelines were equally distributed across the stages of PA behavior, and independent t test was conducted to test the group difference in the actual levels of PA. In Study 2, 279 students who were not aware of the PA recommendations were randomly allocated to either an intervention group or a control group, and only those in the intervention group were presented with international PA guidelines. In both groups,students' PA stages and PA level were examined before the test and then 4 months post-test. Mc Nemar's test for correlated proportions and repeated-measures analysis of variance were conducted to examine the changes in PA stage membership and PA level after the intervention.Results: Study 1 results revealed that only 4.4% of the surveyed students had correct knowledge of PA recommendations. Those who were aware of the recommendations were in later stages of PA behavior(χ~2(4) = 167.19, p < 0.001). They were also significantly more physically active than those who were not aware of the recommendations(t(443.71) = 9.00, p < 0.001, Cohen's d = 0.53). Study 2 results demonstrated that the intervention group participants who were at the precontemplation and contemplation stages at the pre-test each progressed further in the PA stages in the post-test(χ~2(1) = 112.06, p < 0.001; χ~2(1) = 118.76, p = 0.03, respectively), although no significant change in PA level was observed(t(139) < 1, p = 0.89).Conclusion: The results showed that awareness of the PA recommendations was associated with higher stages and levels of PA behavior, and a brief educational exposure to PA recommendations led to improved stages of PA behavior but no change in the levels of PA among Chinese college students. More effective public health campaign strategies are needed to promote the dissemination of the PA recommendations and to raise the awareness of the Chinese student population.Kahar Abula Peter Gropel Kai Chen Jürgen Beckmann 2018Journal of Sport and Health Science2018,7,1:3
5Epidermal Patterning Genes Impose Non‐cell Autonomous Cell Size Determination and have Additional Roles in Root Meristem Size Control显示文摘The regulation of cellular growth is of vital importance for embryonic and postembryonic patterning.Growth regulation in the epidermis has importance for organ growth rates in roots and shoots,proposing epidermal cells as an interesting model for cellular growth regulation.Here we assessed whether the root epidermis is a suitable model system to address cell size determination.In Arabidopsis thaliana L.,root epidermal cells are regularly spaced in neighbouring tricho‐(root hair)and atrichoblast(non‐hair)cells,showing already distinct cell size regulation in the root meristem.We determined cell sizes in the root meristem and at the onset of cellular elongation,revealing that not only division rates but also cellular shape is distinct in tricho‐and atrichoblasts.Intriguingly,epidermal‐patterning mutants,failing to defne differential vacuolization in neighbouring epidermal cell fles,also display non‐differential growth.Using these epidermal‐patterning mutants,we show that polarized growth behaviour of epidermal tricho‐and atrichoblast is interdependent,suggesting non‐cell autonomous signals to integrate tissue expansion.Besides the interweaved cell‐type‐dependent growth mechanism,we reveal an additional role for epidermal patterning genes in root meristem size and organ growth regulation.We conclude that epidermal cells represent a suitable model system to study cell size determination and interdependent tissue growth.Christian Lfke Kai Dünser Jürgen Kleine‐Vehn 2013Journal of Integrative Plant Biology2013,55,9:3
6Anti-N-methyl-D-aspartate receptor encephalitis that aggravates after acinetobacter baumannii pneumonia:A case report显示文摘We report an atypical case of anti-N-methyl-D-aspartate receptor encephalitis(ANMDARE). A 27-year-old man diagnosed with ANMDARE received immunotherapy and had a good recovery. However, within one month, he developed severe status epilepticus and decreased level of conscience with new hyperpyrexia and dyspnea, and was admitted to the emergency intensive care unit. Acinetobacter baumanii were found in the sputum culture; and anti-NMDAR antibodies were positive(titer: 1/80) in the cerebrospinal fluid. Repeated immunotherapy was administered with antibacterial agents, and the patient recovered except for mild psychiatric sequelae. This is the first report of ANMDARE that aggravates after acinetobacter baumannii pneumonia. Awareness and knowledge of this disorder should be extended, especially in the emergency medicine community.Cheng C Wang Da J Li Yi Q Xia Kai Liu 2017World Journal of Clinical Cases2017,5,9:3
7Time delay compensation in active closed-loop structural control显示文摘Kai Q J S Kuand 1995Mechanics Research Communications1995,22,2:2
8Cell polarity protein Par3 complexes with DNA-PK via Ku70 and regulates DNA double-strand break repair显示文摘分区有缺陷者 3 (Par3 ) ,在 conservedPar3/Par6/aPKC 建筑群的一个关键部件,在房间极性的戏基础角色。此处,我们报导 Ku70 和通过试管内绑定试金的蛋白质由液体层析双人脚踏车质谱法跟随了的 Ku80 同样新奇的交往 Par3 的鉴定。Ku70/Ku80 蛋白质是 DNA 依赖的蛋白激酶(DNA-PK ) 的二个关键规章的子单元,它在修理双海滨脱氧核糖核酸裂缝(DSB ) 起一个必要作用。我们决定 Par3 withKu70/Ku80 的原子协会被 y 照耀(红外) 提高,有势力 DSB inducer。而且, DNA-PKcs, DNA-PK 的催化子单元,响应红外与 Par3/Ku70/Ku80 建筑群交往了。Par3over 表示或击倒分别地能够 up- 或 downregulat-ing DNA-PK 活动。而且, Par3 击倒的房间被发现在随机的原生质标志集成有缺点,在 DSB 修理追随者红外有缺点、对射线敏感,类似于 Ku70knockdown 房间的显型。这些调查结果作为 DNA-PK 建筑群的一个新奇部件识别 Par3 并且含有到 DSB 修理的房间极性的一个意外连接。Longhou Fang YiGuo Wang Dan Du Guang Yang Tim Tak Kwok Siu Kai Kong Benjamin Chen David J Chen Zhengjun Chen 2007Cell Research2007,17,2:2
9The fabrication of color-tunable organic light-emitting diode displays via solution processing显示文摘Electroluminescent devices based on organic semiconductors have attracted significant attention owing to their promising applications in flat-panel displays.The conventional display pixel consisting of side-by-side arrayed red,green and blue subpixels represents the mature technology but bears an intrinsic deficiency of a low pixel density.Constructing an individual color-tunable pixel that comprises vertically stacked subpixels is considered an advanced technology.Although color-tunable organic light-emitting diodes(OLEDs)have been fabricated using the vacuum deposition of small molecules,the solution processing of conjugated polymers would enable a much simpler and inexpensive manufacturing process.Here we present the all-solution processing of color-tunable OLEDs comprising two vertically stacked polymer emitters.A thin layer of highly conducting and transparent silver nanowires is introduced as the intermediate charge injection contact,which allows the emission spectrum and intensity of the tandem devices to be seamlessly manipulated.To demonstrate a viable application of this technology,a 4-by-4 pixelated matrix color-tunable display was fabricated.Fei Guo Andre Karl Qi-Fan Xue Kai Cheong Tam Karen Forberich Christoph J Brabec 2017Light(Science & Applications)2017,6,1:2
10Significantly improved photoeatalytic hydrogen production activity over Cd1-x ZnxS photoeatalysts prepared by a novel thermal sulfuration methed显示文摘Kai Z Guo L J 2007Inter J Hydrogen Energy2007,32,:1
11Arteriovenous fistulas at the cervicomedullary junction presenting with subarachnoid hemorrhage: six cases reports with special reference to the angiographic pattern of venous drainage 显示文摘KAI Y HAMADA J MORIOKA M 2005Am J Neuroradiol2005,26,8:1
12Double microcatheter technique for endovascular coiling of wide-neck aneurysms using a new guiding device for the transcarotid approach:technical note显示文摘Kai Y Hamada J Morioka M 2005Neuroradiology2005,47,1:1
13Heterogenesis of prognosis in adult IgA nephropathy, especially with mild proteinuria or mild histological features显示文摘Usui J Yamagata K Kai H 0,,:1
14Levonorgestrel intrauterine system versus medical therapy for menorrhagia 显示文摘Gupta J Kai J Middleton L 2013N Engl J Med2013,368,2:1
15Design of an acid - activated antimicro- bial peptide for tumor therapy 显示文摘Song J Zang W Kai M 2013Mol Pharm2013,10,8:1
16Heterogeneity of prognosis in aduh IgA nephropathy, especially with mild proteinuria or mild histological features 显示文摘Usui J Yamagata K Kai H 2001Intern Med2001,40,8:1
17Expression analysis of MAC30in human pancreatic cancer and tumors of the gastro-intestinal tract显示文摘Kayed H Kleeff J Ding J 2004Histol Histopathol2004,19,4:1
18Full-coverage film cooling part 1:Comparison of heat transfer data for three injection angles 显示文摘CRAWFORD M E KAYS W M MOFFAT R J 1980ASME Journal of Engineering for Power1980,102,:1
19The effects of heat treatment on the chromium depletion, precipitate evolution, and corrosion resistance of INCONEL Alloy 690 显示文摘Kai J J Yu G P Tsai C H 1989Metallurgical Transactions A1989,20,:1
20Effect on cerebral vasospasm of coil embolization followed by microcatheter intrathecal urokinase infusion into the cisterna magna:a prospective randomized study显示文摘Hamada J Kai Y Morioka M 2003Stroke2003,34,11:1
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