|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Circular smooth muscle contributes to esophageal shortening during peristalsis显示文摘AIM:To study the angle between the circular smooth muscle(CSM) and longitudinal smooth muscle(LSM) fibers in the distal esophagus.METHODS:In order to identify possible mechanisms for greater shortening in the distal compared to proximal esophagus during peristalsis,the angles between the LSM and CSM layers were measured in 9 cadavers.The outer longitudinal layer of the muscularis propria was exposed after stripping the outer serosa.The inner circular layer of the muscularis propria was then revealed after dissection of the esophageal mucosa and the underlying muscularis mucosa.Photographs of each specimen were taken with half of the open esophagus folded back showing both the outer longitudinal and inner circular muscle layers.Angles were measured every one cm for 10 cm proximal to the squamocolumnar junction(SCJ) by two independent investigators.Two human esophagi were obtained from organ transplant donors and the angles between the circular and longitudinal smooth muscle layers were measured using micro-computed tomography(micro CT) and Image J software.RESULTS:All data are presented as mean ± SE.The CSM to LSM angle at the SCJ and 1 cm proximal to SCJ on the autopsy specimens was 69.3 ± 4.62 degrees vs 74.9 ± 3.09 degrees,P = 0.32.The CSM to LSM angle at SCJ were statistically significantly lower than at 2,3,4 and 5 cm proximal to the SCJ,69.3 ± 4.62 degrees vs 82.58 ± 1.34 degrees,84.04 ± 1.64 degrees,84.87 ± 1.04 degrees and 83.72 ± 1.42 degrees,P = 0.013,P = 0.008,P = 0.004,P = 0.009 respectively.The CSM to LSM angle at SCJ was also statistically significantly lower than the angles at 6,7 and 8 cm proximal to the SCJ,69.3 ± 4.62 degrees vs 80.18 ± 2.09 degrees,81.81 ± 1.75 degrees and 80.96 ± 2.04 degrees,P = 0.05,P = 0.02,P = 0.03 respectively.The CSM to LSM angle at 1 cm proximal to SCJ was statistically significantly lower than at 3,4 and 5 cm proximal to the SCJ,74.94 ± 3.09 degrees vs 84.04 ± 1.64 degrees,84.87 ± 1.04 degrees and 83.72 ± 1.42 degrees,P = 0.019,P = 0.008,P = 0.02 respectively.At 10 cm above SCJ the angle was 80.06 ± 2.13 degrees which is close to being perpendicular but less than 90 degrees.The CSM to LSM angles measured on virtual dissection of the esophagus and the stomach on micro CT at the SCJ and 1 cm proximal to the SCJ were 48.39 ± 0.72 degrees and 50.81 ± 1.59 degrees.Rather than the angle of the CSM and LSM being perpendicular in the esophagus we found an acute angulation between these two muscle groups throughout the lower 10 cm of the esophagus.CONCLUSION:The oblique angulation of the CSM may contribute to the significantly greater shortening of distal esophagus when compared to the mid and proximal esophagus during peristalsis. | Anil K Vegesna Keng-Yu Chuang Ramashesai Besetty Steven J Phillips Alan S Braverman Mary F Barbe Michael R Ruggieri Larry S Miller | 2012 | World Journal of Gastroenterology2012，18，32： | 7 |
| 2 | 人参减少 γ射线照射的淋巴细胞微核量(英文)显示文摘目的 评价中国人参对减少辐射诱导的人周围血 G0 期淋巴细胞 (PBL)微核量的作用。方法 采用细胞因子阻滞的微核法检测健康志愿者的血标本。体外 1 37Cs照射之前 ,每份血标本的单个核细胞培养以不同浓度 (0~ 2 0 0 0μg· m l- 1 )的人参根水提取物孵育 2 4 h。结果 (1)在 0 Gy时 ,每 10 0 0个双核 (BN )细胞的微核量是 11.3± 2 .7,人参水提取物≥ 5 0 0μg· ml- 1 时微核量下降 ,但微核量和人参水提取物的浓度之间的差异是显著的。 (2 )单独射线照射显著增加微核量 ,当暴露于 1Gy的照射时 ,随着培养介质中人参水提取物浓度的增加 ,微核量呈显著的线性降低 (R2 =0 .0 5 ,P =0 .0 0 2 ) ;对暴露于 1Gy辐射诱导的微核量 ,人参水提取物浓度在 15 0 0μg· m l- 1 时减少 4 6 .6 % ,浓度在 2 0 0 0μg·m l- 1时减少 5 7.6 % ;对暴露于 2 Gy辐射诱导的微核量的减少呈更强的线性相关 (R2 =0 .7,P=0 .0 0 0 1) ;(3)微核数据分析的结果呈现出与 Poisson模型相关的过度离散趋势。结果表明 :(1)人参水提取物浓度达 2 0 0 0 μg· ml- 1时 ,对 PBL 细胞毒作用无明显影响 ;(2 )人参水提取物浓度在 5 0 0 μg· ml- 1和 2 0 0 0 μg· ml- 1之间时 ,对抗 1 37Cs照射诱导的 MN发挥保护作用。 | 李同光 Ron R Allison Kevin F O'Brien Prabhaker G Khazanie Larry J Dobbs Jr. Peter J Kragel | 2004 | 新乡医学院学报2004，21，3： | 3 |
| 3 | An ordinal optimization based bidding strategy for electric power suppliers in the daily energy market显示文摘 | Guan X H HoYC(Larry) Lai F | 2001 | IEEE Trans on Power Svstems2001，16，4： | 2 |
| 4 | PRIMARY CELL CULTURE FOR EMBRYONIC CARDIAC MYOCYTES OF MEXICAN AXOLOTL AND DISTRIBUTION OF DESMIN AND VIMENTIN显示文摘INTRODUCTIONTheaxolotlprovidesavaluablemodelsystemforstudyingmuscledevelopmentandfunction.Electronmicroscopyrevealsthataxolot... | Zhu Yongze, Robert W Zajdel *, Margaret E Fransen *, Larry F Lemanski *(Department of Anatomy, Medical College of Yangzhou University, Yangzhou, 225001 Chian Department of Anatomy and Cell Biology, State University of New York, Health Science Cent | 1999 | 中国组织化学与细胞化学杂志1999，8，1： | 2 |
| 5 | Frostfire:An experimental approach to predicting the climate feedbacks from the changing boreal fire regime显示文摘 | Larry D H Masami F David V S | 2003 | Journal of Geophysical Research2003，108，： | 1 |
| 6 | Corruption, Political Connections and Municipal Finance 显示文摘 | Butler A W Larry F Sandra M | 2009 | Review of Finance2009，，22： | 1 |
| 7 | Metabolites toxic to spruce budworm from balsam fir needle endopgytes显示文摘 | LARRY A C JOHN A F NOAMN J W | 1992 | Mycol Res1992，96，4： | 1 |
| 8 | The effects of land-uso history on soil properties and nutrient dynamics in northern hardwood forests of the ad- irondack mountains 显示文摘 | Larry E F Canham C D Marks P L | 2004 | Ecosystems2004，7，2： | 1 |
| 9 | Phytomining显示文摘 | Robert R Brooksa Michael F Chambersb Larry J Nicksc | 1998 | Trends in Plant Science1998，3，9： | 1 |
| 10 | Temperature, Moisture, and Fungicide Effects in Managing Rhizoetnnia Root and Crown Rot in Sugar Beet显示文摘 | Melvin D Bolton Lee Panella Larry Campbell Mohamed F R Khan | 2010 | Phytopathology2010，100，7： | 1 |
| 11 | The Chinese saving puzzle and the life-cycle hypothesis 显示文摘 | Modigliani F Cao Shi Larry | 2004 | Journal of Economic Literature2004，42，1： | 1 |
| 12 | Ductility Capacity Models for Buckling-Restrained Braces显示文摘 | Blake M A Larry A F Song J H | 2009 | Journal of Constructional Steel Research2009，，65： | 1 |
| 13 | Coupling matrix extraction for cascaded-triplet (CT) to-apology 显示文摘 | RUWAN N G LARRY F L | 2004 | IEEE Trans Microwave Theory Tee2004，52，3： | 1 |
| 14 | Phytomining 显示文摘 | Brooks R R Chambers M F Larry J | 1998 | Trends in Plant Science1998，3，9： | 1 |
| 15 | Interferometic fiber-optic Doppler velocimeter with high-dynamic range 显示文摘 | Larry F Alan D K | 1997 | IEEE Photon Technol Lett1997，9，1： | 1 |
| 16 | Geothermal system mees space heating requirements显示文摘 | Larry M F | 1992 | ASHRAE Journal1992，98，3： | 1 |
| 17 | Geothermal system meets space heating requirements 显示文摘 | Larry M F | 1992 | ASHRAE journal1992，98，3： | 1 |
| 18 | High-temperature stability of SiC-based composites in high-water-vapor-pressure environments 显示文摘 | KARREN L M PETER F T LARRY R W | 2003 | JAm Ceram Soc2003，86，8： | 1 |
| 19 | Real-time continual Leveal of detail rendering of height fields 显示文摘 | P Lindstrom David Koller William Ribarsky Larry F Hodges Nick Faust Gregory A Turner | 1996 | In Proceedings of ACM SIGGRAPH 961996，，： | 1 |
| 20 | Influence of large amounts of nitrogen on nonirrigated and irrigated soybean显示文摘 | Jeffery D Ray Larry G H Felix B F | 2006 | Crop Sci2006，46，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员