|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | β-半乳糖苷酶基因在猕猴桃果实成熟过程的表达显示文摘从成熟中华猕猴桃果实中克隆到了一个 β 半乳糖苷酶基因cDNA片段 ,其长度为 747bp ,有一由 2 49个氨基酸组成的开放阅读框架 ,它与苹果、芦笋、绿花椰菜、番茄中 β 半乳糖苷酶基因cDNA相应区段的核苷酸同源性为 6 7.3 %~ 70 .3 %,氨基酸同源性为6 9.1%~ 72 .7%。用该片段为探针进行Northern分析表明 ,果实采收时 ,β 半乳糖苷酶mRNA水平最高 ,随后呈下降变化 ,同时 β 半乳糖苷酶基因的表达可为外源乙烯所诱导 ,但在果实乙烯跃变期间 β 半乳糖苷酶基因的表达信号无显著变化。文中对 β | 陈昆松 张上隆 Gavin S.Ross | 2000 | 植物生理学报(0257-4829)2000，26，2： | 31 |
| 2 | Following a TRAIL: Update on a ligand and its five receptors显示文摘Identification of tumour necrosis factor apoptosis inducing ligand (TRAIL), a TNF family ligand, sparked a torrent of research, following an initial observation that it could kill tumour cells, but spare normal cells. Almost a decade after its discovery, and with five known receptors, the true physiological role of TRAIL is still debated and its anti-tumorigenic properties limited by potential toxicity. This review takes a comprehensive look at the story of this enigmatic ligand, addressing its remaining potential as a therapeutic and providing an overview of the TRAIL receptors themselves. | Fiona C. KIMBERLEY Gavin R. SCREATON | 2004 | Cell Research2004，14，5： | 26 |
| 3 | 抗精神病药物致体重增加与5羟色胺2C受体基因启动子区多态性的关系显示文摘目的 探讨首发精神分裂症患者抗精神病药物 (APS)治疗过程中的体重增加与 5羟色胺 2C受体 (HTR2C)基因启动区 - 759C/T单核酸置换多态性有无相关。方法 采用PCR RFLP技术分析 1 1 7例首发精神分裂症患者 (男 58例 ,女 59例 )HTR2C基因 - 759C/T半合子 (男性 )或基因型 (女性 )分布频率 ,APS(利培酮或氯丙嗪 )单药治疗 1 0周 ,测定患者治疗前后的体重和体重指数 (BMI) ,并分析半合子或基因型与BMI变化值的相关性。结果 治疗后患者平均体重增加 (3 2± 3 5)kg或基础体重的 (5 7± 6 2 ) % ,体重变化范围为 - 7kg~ 1 2kg或 - 7 8%~ 32 %。 58例男性患者突变型半合子频率为 1 9% ,59例女性患者突变型纯合子频率为 0 % ,杂合子频率为 2 7 0 %。 - 759T半合子 (男性 )或杂合子 (女性 )在体重增加 >7%和体重增加 <7%的患者组分布差异有非常显著意义 (χ2 =2 2 35 ,P=0 0 0 0 1 ;χ2 =1 2 36 ,P =0 0 0 0 1 ) ;与携带 - 759T半合子或杂合子患者组相比 ,不携带者体重增加的危险度高 5~ 6倍 (OR =5 1 1 ,6 68)。结论 HTR2C基因启动区 - 759C/T单核酸置换多态性与APS治疗导致汉族精神分裂症患者体重增加相关联 ,而 - 759C→T单核酸置换是防止和限制体重增加的基因保护因素。 | 张志珺 张晓斌 姚志剑 孙静 姚辉 侯钢 张心保 陈建芳 Gavin P Reynolds | 2002 | 中华医学杂志2002，82，16： | 23 |
| 4 | Review of renal cell carcinoma and its common subtypes in radiology显示文摘Representing 2%-3% of adult cancers, renal cell carcinoma(RCC) accounts for 90% of renal malignancies and is the most lethal neoplasm of the urologic system. Over the last 65 years, the incidence of RCC has increased at a rate of 2% per year. The increased incidence is at least partly due to improved tumor detection secondary to greater availability of high-resolution cross-sectional imaging modalities over the last few decades. Most RCCs are asymptomatic at discovery and are detected as unexpected findings on imaging performed for unrelated clinical indications. The 2004 World Health Organization Classification of adult renal tumors stratifies RCC into several distinct histologic subtypes of which clear cell, papillary and chromophobe tumors account for 70%, 10%-15%, and 5%, respectively. Knowledge of the RCC subtype is important because the various subtypes are associated with different biologic behavior, prognosis and treatment options. Furthermore, the common RCC subtypes can often be discriminated non-invasively based on gross morphologic imaging appearances, signal intensity on T2-weighted magnetic resonance images, and the degree of tumor enhancement on dynamic contrast-enhanced computed tomography or magnetic resonance imaging examinations. In this article, we review the incidence and survival data, risk factors, clinical and biochemical findings, imaging findings, staging, differential diagnosis, management options and posttreatment follow-up of RCC, with attention focused on the common subtypes. | Gavin Low Guan Huang Winnie Fu Zaahir Moloo Safwat Girgis | 2016 | World Journal of Radiology2016，8，5： | 20 |
| 5 | Contrast-enhanced 3D ultrasound in the radiofrequency ablation of liver tumors显示文摘Liver metastases and hepatocellular carcinomas are two of the most common causes of cancer deaths in the world.Radiofrequency ablation(RFA) is a well recognized,effective and minimally invasive means of treating malignant hepatic tumors.This article describes the use of contrast-enhanced 3D ultrasound(CE-3DUS) in the staging,targeting and follow-up of patients with liver tumors undergoing RFA.In particular,its value in the management of large hepatic lesions will be illustrated.Current limitations of CE-3DUS and future developments in the technique will also be discussed.In summary,CE-3DUS is useful in the RFA of liver tumors with improved detection and display of occult lesions and recurrence,in the assessment of lesional geometry and orientation for a more accurate planning and guidance of multiple RFA needle electrodes in large tumors and in the evaluation of residual or recurrent disease within the immediate and/or subsequent follow-up periods. | Edward Leen Senthil Kumar Shahid A Khan Gavin Low Keh Oon Ong Paul Tait Mike Averkiou | 2009 | World Journal of Gastroenterology2009，15，3： | 19 |
| 6 | The emergence of pandemic influenza viruses显示文摘Pandemic influenza has posed an increasing threat to public health worldwide in the last decade.In the 20th century,three human pandemic influenza outbreaks occurred in 1918,1957 and 1968,causing significant mortality.A number of hypotheses have been proposed for the emergence and development of pandemic viruses,including direct introduction into humans from an avian origin and reassortment between avian and previously circulating human viruses,either directly in humans or via an intermediate mammalian host.However,the evolutionary history of the pandemic viruses has been controversial,largely due to the lack of background genetic information and rigorous phylogenetic analyses.The pandemic that emerged in early April 2009 in North America provides a unique opportunity to investigate its emergence and development both in human and animal aspects.Recent genetic analyses of data accumulated through long-term influenza surveillance provided insights into the emergence of this novel pandemic virus.In this review,we summarise the recent literature that describes the evolutionary pathway of the pandemic viruses.We also discuss the implications of these findings on the early detection and control of future pandemics. | Yi Guan Dhanasekaran Vijaykrishna Justin Bahl Huachen Zhu Jia Wang Gavin J.D.Smith | 2010 | Protein & Cell2010，1，1： | 16 |
| 7 | 老年人移动构成的时空--老龄化地理学中非表征理论的引入显示文摘本文主要介绍了非表征理论及其在老龄化地理学研究中的运用。该理论的引入将使老龄化地理学成为一个重新焕发活力的研究领域。该领域涉及老年人生活中广泛而多样的空间移动与体验,涵盖移动的参与者、时效性和感知等维度,从而更好地表达和反映空间移动的本质特征。 | Gavin J.ANDREWS Amanda M.GRENIER | 2015 | 地理科学进展2015，34，12： | 15 |
| 8 | ACE2/Ang-(1-7) signaling and vascular remodeling显示文摘The renin-angiotensin system(RAS)regulates vascular tone and plays a critical role in vascular remodeling,which is the result of a complex interplay of alterations in vascular tone and structure.Inhibition of the RAS has led to important pharmacological tools to prevent and treat vascular diseases such as hypertension,diabetic vasculopathy and atherosclerosis.Angiotensin converting enzyme 2(ACE2)was recently identified as a multifunctional monocarboxypeptidase responsible for the conversion of angiotensin(Ang)II to Ang-(1-7).The ACE2/Ang-(1-7)signaling has been shown to prevent cellular proliferation,pathological hypertrophy,oxidative stress and vascular fibrosis.Thus,the ACE2/Ang-(1-7)signaling is deemed to be beneficial to the cardiovascular system as a negative regulator of the RAS.The addition of the ACE2/Ang-(1-7)signaling to the complexities of the RAS may lead to the development of novel therapeutics for the treatment of hypertension and other vascular diseases.The present review considers recent findings regarding the ACE2/Ang-(1-7)signaling and focuses on its regulatory roles in processes related to proliferation,inflammation,vascular fibrosis and remodeling,providing proof of principle for the potential use of ACE2 as a novel therapy for vascular disorders related to vascular remodeling. | ZHANG ZhenZhou CHEN LaiJiang ZHONG JiuChang GAO PingJin OUDIT Gavin Y. | 2014 | Science China(Life Sciences)2014，57，8： | 14 |
| 9 | Effect of nutritional counselling on hepatic,muscle and adipose tissue fat content and distribution in non-alcoholic fatty liver disease显示文摘AIM: To assess the effectiveness of the current UK clinical practice in reducing hepatic fat (IHCL). METHODS: Whole body MRI and 1H MRS were obtained, before and after 6 mo nutritional counselling, from liver, soleus and tibialis muscles in 10 subjects with non-alcoholic fatty liver disease (NAFLD). RESULTS: A 500 Kcal-restricted diet resulted in an average weight loss of 4% (-3.4 kg,) accompanied by significant reductions in most adipose tissue (AT) depots, including subcutaneous (-9.9%), abdominal subcutaneous (-10.2%) and intra-abdominal-AT (-11.4%). Intramyocellular lipids (IMCL) were significantly reduced in the tibialis muscle (-28.2%). Decreases in both IHCL (-39.9%) and soleus IMCL (-12.2%) content were also observed, although these were not significant. Several individuals showed dramatic decreases in IHCL, while others paradoxically showed increases in IHCL content. Changes in body composition were accompanied by improvements in certain liver function tests: serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT). Significant correlations were found between decreases in IHCL and reductions in both intra-abdominal and abdominal subcutaneous AT. Improvements in liver function tests were associated with reductions in intra-abdominal AT, but not with changes in IHCL. CONCLUSION: This study shows that even a very modest reduction in body weight achieved through lifestyle modification can result in changes in body fat depots and improvements in LFTs. | E Louise Thomas Audrey E Brynes Gavin Hamilton Nayna Patel Adam Spong Robert D Goldin Gary Frost Jimmy D Bell Simon D Taylor-Robinson | 2006 | World Journal of Gastroenterology2006，12，36： | 13 |
| 10 | Cyclooxygenase-2 plays a central role in the genesis of pancreatitis and associated lung injury显示文摘BACKGROUND: The exact mechanism by which cyclooxy- genase-2 (COX-2) promotes inflammation in pancreatitis in obscure. This study was undertaken to investigate the role of COX-2 inhibition in an animal model of pancreati- tis , a disease process characterized by a systemic inflamma- tory response and ensuing neutrophil-mediated lung injury. METHODS: Pancreatitis was induced in 24 Sprague-Daw- ley rats by intraperitoneal injection of 20% L-arginine (500 mg/100 g body weight). The animals were randomized into 3 groups (8 rats in each group); controls and rats with pancreatitis intravenously resuscitated with either normal saline (0.9% NaCl 3 ml/kg) at 24 and 48 hours or COX-2 inhibitor (parecoxib 1 mg/kg). Pancreatic and lung inju- ries were assessed histologically. Lung injury was assessed utilizing wet;dry ratio and myeloperoxidase activity to in- dicate pulmonary neutrophil infiltration. A Western blot was used to determine COX-2 protein expression in pancrea- tic tissue. RESULTS: The animals treated with COX-2 inhibitors dis- played significantly less pancreatic and lung injuries than their normal saline counterparts. Histological pancreatic and lung injury scores were significantly reduced (P <0.05) in the COX-2 treated group. Lung wet: dry ratios were sig- nificantly improved and pulmonary neutrophil infiltration was attenuated in the COX-2 group (P<0.05). Western blot analysis confirmed attenuated COX-2 protein expression. CONCLUSION: This study shows, for the first time in a rat model, that adjuvant COX-2 inhibition significandy attenu- ates the severity of both pancreatitis and its associated sys- temic inflammatory response and end-organ injury. | Gavin O'Brien Conor J Shields Desmond C Winter John P Dillon | 2005 | Hepatobiliary & Pancreatic Diseases International2005，4，1： | 12 |
| 11 | Breeding wheat for resistance to Fusarium head blight in the Global North: China, USA, and Canada显示文摘The objective of this paper is to review progress made in wheat breeding for Fusarium head blight(FHB) resistance in China, the United States of America(USA), and Canada. In China,numerous Chinese landraces possessing high levels of FHB resistance were grown before the 1950 s. Later, pyramiding multiple sources of FHB resistance from introduced germplasm such as Mentana and Funo and locally adapted cultivars played a key role in combining satisfactory FHB resistance and high yield potential in commercial cultivars.Sumai 3, a Chinese spring wheat cultivar, became a major source of FHB resistance in the USA and Canada, and contributed to the release of more than 20 modern cultivars used for wheat production, including the leading hard spring wheat cultivars Alsen, Glenn, Barlow and SY Ingmar from North Dakota, Faller and Prosper from Minnesota, and AAC Brandon from Canada. Brazilian wheat cultivar Frontana, T. dicoccoides and other local germplasm provided additional sources of resistance. The FHB resistant cultivars mostly relied on stepwise accumulation of favorable alleles of both genes for FHB resistance and high yield,with marker-assisted selection being a valuable complement to phenotypic selection. With the Chinese Spring reference genome decoded and resistance gene Fhb1 now cloned, new genomic tools such as genomic selection and gene editing will be available to breeders, thus opening new possibilities for development of FHB resistant cultivars. | Zhanwang Zhu Yuanfeng Hao Mohamed Mergoum Guihua Bai Gavin Humphreys Sylvie Cloutier Xianchun Xia Zhonghu He | 2019 | The Crop Journal2019，7，6： | 12 |
| 12 | A STUDY OF STRUCTURE AND PROPERTY CHANGES OF BIODEGRADABLE POLYGLYCOLIDE AND POLY(GLYCOLIDE-co-LACTIDE)FIBERS DURING PROCESSING AND IN VITRO DEGRADATION显示文摘Structure and properties of bioabsorbable polyglycolide (PGA) and poly(glycolide-co-lactide) (PGA-co-PLA)fibers were investigated during several industrial processing stages and in vitro degradation by means of wide-angle X-ray diffraction (WAXD), dynamic mechanical analysis (DMA) and mechanical property tests. In the orientation stage, the PGA fibers were found to have higher degrees of crystallinity than corresponding PGA-co-PLA samples produced under similar conditions. In the hot-stretching and post-annealing stages, after fibers were braided, PGA samples were found to gain more crystallinity and higher Tg than PGA-co-PLA samples. The higher crystallinity in PGA fibers resulted in a slower rate of degradation. DMA results showed that a great deal of internal stress that was built during orientation and hot-stretching stages was released in the post-annealing stage for all PGA and PGA-co-PLA samples. During earlier stages ofin vitro degradation, both PGA and PGA-co-PLA samples exhibited the typical cleavage-induced crystallization mechanism. The heat shrinkage in the glass transition area was found to disappear after 6-8 days of degradation for all PGA and PGA-co-PLA samples, indicating the amorphous portions of the polymers lost orientation after a short period in the buffer solution, most likely due to relaxation of the cleaved chains. | Bruce X.Fu Benjamin S.Hsiao Gavin Chen Jack Zhou Susan Lin Jenny Yuan Ilya Koyfman Dennis D Jamiolkowski Edward Dormier | 2003 | Chinese Journal of Polymer Science2003，21，2： | 9 |
| 13 | 一种稳定易行的创伤性颅脑损伤模型的构建和评估显示文摘目的 构建并评估一种可同时模拟运动和认知障碍的小鼠创伤性颅脑损伤(TBI)模型. 方法 24只健康雄性C57BL/6小鼠按随机数字表法分为假手术组和TBI组,每组12只.TBI组小鼠参照并改良压缩损伤模型的方法制备TBI模型,假手术组小鼠进行相同操作,但不进行损伤.造模后1、3、7、14、21、28d采用转棒实验和平衡木实验评估小鼠的运动能力;造模后28、29、30、31、32、33 d采用水迷宫实验测试小鼠的学习和记忆能力;造模后34 d尼氏染色检测小鼠脑组织病理改变情况,免疫荧光染色检测小鼠脑组织胶质纤维酸性蛋白(GFAP)、离子钙接头蛋白-1(Iba-1)的表达以观察胶质细胞的增生情况. 结果 造模后1、3、7、14、21、28 d TBI组小鼠的潜伏期明显低于假手术组,右后肢出错步数明显多于假手术组,差异均有统计学意义(P<0.05);造模后30、31、32d TBI组小鼠逃避潜伏期明显长于假手术组,造模后33 d TBI组小鼠穿越原平台位置的次数明显少于假手术组,差异均有统计学意义(P<0.05);假手术组小鼠脑组织损伤体积低于TBI组[(0.55±0.06)% vs.(16.90±1.14)%],差异有统计学意义(P<0.05);TBI组、假手术组小鼠病灶周围星形胶质细胞数分别为(101.40±6.18)个/mm2、(20.17±1.55)个/mm2,小胶质细胞数目分别为(119.20±6.28)个/mm2、(23.58±1.72)个/mm2,差异均有统计学意义(P<0.05). 结论 本实验构建的简便、具有良好重复性和稳定的运动和认知障碍表现的TBI模型,符合中度TBI的病理学改变,可推广用于TBI的动物实验研究. | 林桂清 郭阳 梁凤银 Gavin Sunnassee 裴中 谭盛 | 2018 | 中华神经医学杂志2018，17，5： | 8 |
| 14 | 影响学生对科学态度因素的实证研究显示文摘学生对科学积极态度的培养是科学教育的重要目标。为发现哪些因素影响学生对科学的态度,本研究对来自16所不同水平学校的1334位初三学生进行问卷调查,用探索性因素分析及方差分析方法处理调查数据。发现学生性别、学校类型和教师教学方法影响学生对科学的态度。男生比女生有更积极的科学态度;学校类别与学生对科学的态度显著相关,教学水平和生源相对差学校学生对科学的态度反而更为积极;合作教学方法于学生对科学的态度有显著的积极影响,建构教学方法和讲述教学方法与学生对科学的态度没有统计学上的显著相关。上述发现对优化科学教学有启示作用。 | 马宏佳 陈功 Ling L.Liang Gavin W.Fulmer | 2014 | 课程.教材.教法2014，34，7： | 8 |
| 15 | Antioxidative and anti-endotoxin effects of propofol on endothelial cells显示文摘Objective To investigate the antioxidant and anti-endotoxin effects of propofol on endothelial cells and the possible mechanisms.Methods Cultured endothelial cells were treated with hydrogen peroxide (H 2O 2), propofol + H 2O 2, lipopolysaccharide (LPS) and propofol + LPS, respectively. Endothelial cell damage was monitored for possible lactic dehydrogenase (LDH) release. The transcription and the protein expression levels of endothelial nitric oxide synthase (eNOS) were measured.Results LDH release was higher in groups treated with H 2O 2 or LPS than in the control group. After pretreatment with propofol, the effects induced by H 2O 2 were attenuated, but propofol did not decrease the LDH release induced by LPS. Both H 2O 2 and LPS significantly increased the eNOS transcript levels and the increases were significantly attenuated after pretreatment with propofol. Both H 2O 2 and LPS significantly increased the eNOS protein expression and the increase was attenuated after pretreatment with propofol. Conclusion Propofol could protect endothelial cells against oxidative stress by inhibiting eNOS transcription and protein expression, but could not antagonise endotoxin induced cell injuries. | 彭志勇 罗敏 叶仕桥 Critchley Lester AH Joynt Gavin M Ho Anthony MH 姚尚龙 | 2003 | Chinese Medical Journal2003，，5： | 7 |
| 16 | Destabilization of strigolactone receptor DWARF14 by binding of ligand and E3-1igase signaling effector DWARF3显示文摘 | Li-Hua Zhao X Edward Zhou Wei Yi Zhongshan Wu Yue Liu Yanyong Kang Li Hou Parker W de Waal Suling Li Yi Jiang Adrian Scaffidi Gavin R Flematti Steven M Smith Vinh Q Lam Patrick R Griffin YonghongWang Jiayang Li Karsten Melcher H Eric Xu | 2015 | Cell Research2015，25，11： | 7 |
| 17 | 向中国介绍电视胸腔镜肺叶切除术及如何避免西方的失误(英文)显示文摘目的在过去10~15年里,香港、日本和西方的临床医生开展了非小细胞肺癌的电视胸腔镜肺叶切除手术。虽然此种技术的支持者发表了结果满意的文章,但毫无疑问有些病人遭受了由于医生的技术尚处于学习曲线阶段或由于病例选择不当造成的失误。杂志投稿零星的报道和在国际会议上的个人交流并未被广泛传播,而且外科医生不太可能发表效果不好的结果,这些都导致报道的阳性误差。尽管我们中心已经有650例胸腔镜手术的经验,其中还包括食管切除、扩大胸腺切除、膈肌修补等复杂手术,但我们对开展非小细胞肺癌胸腔镜肺叶切除术仍很谨慎,因为我们不希望危及开胸手术的良好效果。另外,为了向中国医生全面系统地介绍这一经过慎重考虑的技术,对于将要开展胸腔镜肺叶切除术的医院,我们推荐了一个10步方案。本文还将介绍我们中心开展胸腔镜肺叶切除的经历,在过去12个月中技术的提高呈指数级增长,学习曲线达到平台期。本文详细介绍电视胸腔镜肺叶切除术,40例手术无死亡,5年生存率86%。根据现有的证据,在中国目前正在继续进行医疗改革之际,对合适的非小细胞肺癌进行胸腔镜手术应会使广大的人群获益。 | Gavin Michael Wright 刘伦旭 | 2006 | 中国微创外科杂志2006，6，9： | 6 |
| 18 | General review of magnetic resonance elastography显示文摘Magnetic resonance elastography(MRE) is an innovative imaging technique for the non-invasive quantification of the biomechanical properties of soft tissues via the direct visualization of propagating shear waves in vivo using a modified phase-contrast magnetic resonance imaging(MRI) sequence. Fundamentally,MRE employs the same physical property that physicians utilize when performing manual palpation- that healthy and diseased tissues can be differentiated on the basis of widely differing mechanical stiffness. By performing 'virtual palpation ',MRE is able to provide information that is beyond the capabilities of conventional morphologic imaging modalities. In an era of increasing adoption of multi-parametric imaging approaches for solving complex problems,MRE can be seamlessly incorporated into a standard MRI examination to provide a rapid,reliable and comprehensive imaging evaluation at a single patient appointment. Originally described by the Mayo Clinic in 1995,the technique represents the most accurate non-invasive method for the detection and staging of liver fibrosis and is currently performed in more than 100 centers worldwide. In this general review,the mechanical properties of soft tissues,principles of MRE,clinical applications of MRE in the liver and beyond,and limitations and future directions of this discipline-are discussed. Selected diagrams and images are provided for illustration. | Gavin Low Scott A Kruse David J Lomas | 2016 | World Journal of Radiology2016，8，1： | 5 |
| 19 | 精神分裂症患者海马区γ-氨基丁酸能中间神经元钙结合蛋白的免疫组化研究显示文摘目的 通过定量分析精神分裂症患者海马区γ 氨基丁酸 (GABA)能中间神经元相对密度的改变 ,探讨其在精神分裂症发病机理中的作用。方法 共 30例患者的脑组织标本 ,其中精神分裂症患者 15例 (精神分裂症组 ) ,无神经或精神疾病史者 15例 (对照组 )。采用免疫组化法结合抗parvalbumin(PV)和抗calretinin(CR)抗体 ,测定精神分裂症组和对照组钙结合蛋白 (CBPs)免疫反应 (IR)阳性细胞在海马本体齿状回和阿蒙角 (Ammon′shorn ,CA1 CA4 )的分布、胞体大小、相对密度及海马亚区面积。结果 与对照组比较 ,精神分裂症组CR IR中间神经元相对密度的差异无显著性 (P >0 0 5 ) ,而PV IR中间神经元相对密度在海马各亚区均严重缺失 ,差异有显著性 (P <0 0 5~ 0 0 0 1) ;其中以男性患者为著 ,与年龄、病程和抗精神病药无显著性相关 (P >0 0 5 )。结论 精神分裂症患者海马区含PV的GABA能抑制性中间神经元亚群缺失 ,似符合早期神经发育异常的病因学假说。 | 张志 孙静 Gavin P. Reynolds | 2002 | 中华精神科杂志2002，35，2： | 5 |
| 20 | Modeling the dose-response rate/associations between VO2max and self-reported Physical Activity Questionnaire in children and adolescents显示文摘Background'. This study sought to explore the dose—response rate/association between aerobic fitness (VC)2max) and self-reported physical activity(PA) and to assess whether this association varies by sex, age, and weight status.Methods. VO2max was assessed using the 20・m shuttle・run test. PA was assessed using the Physical Activity Questionnaire (PAQ) for Adolescents(aged > 11 years, PAQ-A) or for Children (aged <11 years, PAQ-C). The associations between V02raax and PAQ were analyzed using analysisof covariance (ANCOVA), adopting PAQ and PAQ2 as covariates but allowing the intercepts and slope parameters of PAQ and PAQ2 tovary with the categorical variables sex, age group, and weight status.Results: ANCOVA identified a curvilinear association between VO2max and PAQ, with positive linear PAQ terms that varied for both sex andweight status but with a negative PAQ2 term of —0.39 (95% confidence interval (CI): —0.57 to —0.21) that was common for all groups in regardto age, sex, and weight status. These curvilinear (inverted U) associations suggest that the benefits of increasing PA (same dose) on VO2max isgreater when children report lower levels of PA compared to children who report higher levels of PA. These dose-response rates were alsosteeper for boys and were steeper for lean children compared to overweight/obese children.Conclusion'. Health practitioners should be aware that encouraging greater PA (same dose) in inactive and underweight children will result ingreater gains in V02max (response) compared with their active and overweight/obese counterparts. | Alan M.Nevill Michael J.Duncan Gavin Sandercock | 2020 | Journal of Sport and Health Science2020，9，1： | 5 |
您所在的机构暂未开通此部分的功能，请联系管理员