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MRI findings in injured articular cartilage of the knee correlated with surgical findings

Chinese Medical Journal 2009年第21期122卷 2624-2630页

作者： LI Xiao-ming PENG Wen-jia WU Hua kacher daniel XIA Li-ming AI Fei LI Feng XIONG Wei Department of Radiology Tongji Hospital of Tongji Medical College Huazhong University of Science & Technology Wuhan Hubei 430030 China Department of Orthopaedics Tongji Hospital of Tongji Medical College Huazhong University of Science & Technology Wuhan Hubei 430030 China Department of Radiology Brigham and Women's Hospital Harvard Medical School 75 Francis Street Boston MA 02115 USA

Background There is a strong need for quick noninvasive diagnostic technique that can give a valid estimate of the status of the cartilage reliably, discriminating intact cartilage from various grades of impaired cartilage. The goal of this study was to assess the incidence of knee cartilage injuries and compare the accuracy of two-dimension spin echo （2D SE） and fast spin echo （FSE）（conventional MRI）, three-dimensional spoiled gradient echo （3D SPGR）, three-dimensional fast imaging employing steady state acquisition （3D FIESTA） MR imaging sequences with surgical examination of the articular cartilage. Methods One hundred and thirty-eight knees with history of knee trauma received conventional MRI, 3D SPGR and 3D FIESTA MRI examination before surgery, and surgical examination of articular cartilage was used as reference standard. A modified version of the Noyes classification system was applied for the evaluation of the lateral femoral condyle （LFC）, medial femoral condyle （MFC）, lateral tibial plateau （LTP）, medial tibial plateau （MTP）, trochlea and patella. The incidence and distributions of different injured grades at different articular surfaces of knee were assessed. A series of assessment indeces of 3D SPGR, 3D FIESTA, and the combination of the conventional MRI and 3D SPGR imaging were calculated. Results The incidence of cartilage defects （grade 2 to 4） was 22% （183/828）, according to surgical examination. Grade 3 and 4 lesions were absent at the medial tibial plateau. The rates of exact match between the grading results of different MRI procedures and surgical examination were 49% of 3D SPGR, 61% of 3D FIESTA, and 82% of the combination of 3D SPGR and conventional MRI. Also, the combination of 3D SPGR and conventional MR imaging provided the highest sensitivity, specificity, accuracy, positive and negative predictive values, at 71%, 97%, 90%, 90% and 90%, respectively. Conclusions For all the articular surfaces of the traumatic knees, about one fifth （22%）

关键词： cartilage of knee trauma 3D SPGR 3D FIESTA

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MR 3D SPGR、3D FIESTA和2D SE/FSE序列对外伤性膝关节软骨损伤的分级诊断研究

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临床放射学杂志 2009年第10期28卷 1425-1429页

作者：彭雯佳李小明艾飞余铖 kacher daniel 吴华漆剑频夏黎明胡道予胡军武冯定义华中科技大学同济医学院附属同济医院放射科武汉430030 美国哈佛大学医学院附属Brigham and Women's医院波士顿马萨诸塞州02115 华中科技大学同济医学院附属同济医院骨科武汉430030

目的回顾性研究外伤性膝关节关节软骨的损伤发生率及程度,比较三维扰相梯度回波序列(3DSPGR)、三维稳态采集快速成像序列(3D FIESTA)和膝关节常规检查序列(2D SE/FSE)在诊断外伤性膝关节软骨损伤中的准确性。资料与方法45例患者的46个... 详细信息

目的回顾性研究外伤性膝关节关节软骨的损伤发生率及程度,比较三维扰相梯度回波序列(3DSPGR)、三维稳态采集快速成像序列(3D FIESTA)和膝关节常规检查序列(2D SE/FSE)在诊断外伤性膝关节软骨损伤中的准确性。资料与方法45例患者的46个外伤膝关节,行手术治疗前均进行了多序列的MRI,包括膝关节常规MRI(SE T1WI,FSE PD/T2WI),3D SPGR和3D FIESTA序列。运用改良的Noyes分类系统来评价膝关节软骨面的损伤等级,每个膝关节的关节面包括:股骨外侧髁(LFC)、股骨内侧髁(MFC)、胫骨外侧平台(LTP)、胫骨内侧平台(MTP)、股骨滑车(Trochlea)和髌骨(Patella)。以手术结果为"金标准",比较各序列发现软骨损伤的敏感性、特异性、准确性、阳性及阴性预测值。用Wilson评分法计算敏感性和特异性的95%可信区间,用McNemar统计法的双尾精确表来比较不同MRI序列对软骨分级诊断的显著性差异。结果根据手术结果,软骨形态改变的发生率为43%(118/276),软骨缺损的发生率为23%(63/276)。各个关节面软骨损伤的发生率无明显差异。MR图像(3D SPGR、3D FIESTA、3D SPGR结合常规MRI)表现与手术结果的完全一致率分别为53%、60%和85%,之间差异无统计学意义。但是3D SPGR结合常规MRI序列评价软骨损伤的敏感性、特异性、阳性预测值和阴性预测值均为最高,分别为73%、98%、95%和90%。结论3D SPGR和3D FIESTA序列在诊断膝关节软骨病变时无明显差异。3D SPGR结合常规MRI序列,不仅可以在合理的扫描时间内提高诊断软骨病变的准确性,而且还可对膝关节的其他组织结构做出全面的评价。

关键词：膝关节软骨外伤三维扰相梯度回波三维稳态采集快速成像

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外扩张联合自体脂肪移植隆乳术是一种安全、有效的选择：6年81例患者前瞻性、多中心研究

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中国美容整形外科杂志 2012年第12期23卷 I0009-I0022页

作者： Roger K. Khouri Marita Eisenmann-Klein Eufemiano Cardoso Brian C. Cooley daniel kacher Eva Gombos 魏峰(译) 高景恒(译) 张晨(译) 美国佛罗里达州迈阿密市佛罗里达国际大学整形外科中心迈阿密乳房中心德国雷格斯堡圣约瑟夫明爱医院整形美容与手外科部威斯康星州密尔沃基市维斯康星医学院骨科马萨诸塞州波士顿市哈佛大学医学院布莱根妇女医院手术规划实验室及乳房放射线科迈阿密大学外科部《中国美容整形外科杂志》编辑部大连大学附属新华医院

研究背景自体脂肪移植隆乳术是一个有待科学验证的吸引人的选择. 方法本研究为前瞻性、多通道研究,81例女性患者（年龄17～63岁）穿戴Brava装置（一个类似乳罩的真空外扩张器）4周,然后在每侧乳房选择10～14 个入针点三维扇形地进行自... 详细信息

研究背景自体脂肪移植隆乳术是一个有待科学验证的吸引人的选择. 方法本研究为前瞻性、多通道研究,81例女性患者（年龄17～63岁）穿戴Brava装置（一个类似乳罩的真空外扩张器）4周,然后在每侧乳房选择10～14 个入针点三维扇形地进行自体脂肪注射（每侧乳房平均注射277ml）.然后,患者再次全天穿戴Brava装置7d或更久.利用MRI成像扫描三维体积重建测量治疗前、后乳房体积,并将治疗效果与近期报道的6篇未扩张的自体脂肪移植隆乳术的Meta分析结果进行对比.本组患者随访观察12个月至6年（平均 3.7年）.结果乳房体积在3～6个月间无变化.本组有71例患者顺应Brava装置的穿戴,且12个月时每侧乳房体积增加233ml,而文献中报道的未穿戴Brava的每侧增加量为134ml（P ＜0.00001）.穿戴Brava与未穿戴Brava的脂肪移植成活率分别为82%±18%及55%±18%（P ＜0.00001）.移植前Brava预扩张与脂肪移植隆乳术效果间有强烈的线性关联（R2=0.87）.无可疑的脂肪肿块或硬结.术后1年的乳房影像学分析可以很容易地通过MRI检查到16%的脂肪坏死发生率.结论自体脂肪移植隆乳术中引入Brava扩张可疑通过增加脂肪置入空间、提高移植成活率、减少移植坏死和并发症的发生来增加脂肪增大的量,证实其为安全、有效的措施.（循证医学证据等级：Ⅳ级,疗法）

关键词：自体脂肪移植女性患者隆乳术多中心研究安全自体脂肪注射乳房体积 MRI成像

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Gastric polyps are not created equal: Know your enemy

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World Journal of Gastroenterology 2025年第2期31卷 144-146页

作者： Fady daniel Department of Gastroenterology and Hepatology American University of Beirut Medical CenterBeirut 11072020Lebanon

Gastric polyps are commonly detected during upper gastrointestinal *** are most often benign and rarely become ***,adequate knowledge,diagnostic modalities,and management strategies should be the endoscopist’s readily available“weapons”to defeat the potentially malignant“enemies”.This article sheds light on the valuable effort by Costa et al to generate a new classification system of gastric polyps as“good”,“bad”,and“ugly”.This comprehensive overview provides clinicians with a simplified decision-making process.

关键词： Gastric polyps Polypoid subepithelial lesions Early gastric cancer Endoscopic ultrasonography Electronic chromoendoscopy

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Amyloid-β-induced disruption of axon-initial-segment mitochondria localization:consequences for TAU missorting in Alzheimer's disease pathology

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Neural Regeneration Research 2025年第5期20卷 1407-1408页

作者： daniel Adam Felix Langerscheidt Hans Zempel Institute of Human Genetics University Hospital CologneCologneGermany Center for Molecular Medicine Cologne(CMMC) University of CologneCologneGermany

TAU is a neuronal microtubule-associated protein preferentially located in *** a battery of neurodegenerative diseases termed"tauopathies,"including Alzheimer's disease (AD),TAU is missorted and abnormally phosphorylated,leading to filamentous accumulations of hyperphosphorylated TAU,a pathological hallmark and potential disease driver of AD and related tauopathies (Zempel,2024).

关键词： Alzheimer tau diseases

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Vascular endothelial growth factor:a double-edged sword in the development of white matter lesions

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Neural Regeneration Research 2025年第1期20卷 191-192页

作者： Narek Manukjan daniel Fulton Zubair Ahmed WMatthijs Blankesteijn Sébastien Foulquier Department of Pharmacology and Toxicology Maastricht UniversityMaastrichtThe Netherlands CARIM-School for Cardiovascular Diseases Maastricht UniversityMaastrichtThe Netherlands Neuroscience and Ophthalmology Institute of Inflammation and AgeingUniversity of BirminghamEdgbastonBirminghamUK Centre for Trauma Sciences Research University of BirminghamEdgbastonBirminghamUK MHeNs-School for Mental Health and Neuroscience Maastricht UniversityMaastrichtThe Netherlands Department of Neurology Maastricht University Medical CenterMaastrichtThe Netherlands

As the population ages,the burden of age-related diseases becomes ***,over 55 million people suffer from dementia worldwide,with Alzheimer’s disease being the most common ***,it is becoming clearer that underlying vascular pathology such as cerebral small vessel disease(cSVD)may be a more detrimental cause for dementia(Cuadrado-Godia et al.,2018).It is estimated that 10%-30%of the elderly population and 35%-90%of all dementia patients exhibit signs of *** term cSVD refers to pathology affecting the small vessels of the brain,which can lead to lacunar cerebral infarcts,enlarged perivascular spaces,and cortical hemorrhages(Cuadrado-Godia et al.,2018).CSVD is often associated with cognitive decline,gait problems,and dementia(Cuadrado-Godia et al.,2018).

关键词： pathology becoming white

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Complement-dependent neuroinflammation in spinal cord injury:from pathology to therapeutic implications

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Neural Regeneration Research 2025年第5期20卷 1324-1335页

作者： Hassan Saad Bachar El Baba Ali Tfaily Firas Kobeissy Juanmarco Gutierrez Gonzalez daniel Refai Gerald R.Rodts Christian Mustroph David Gimbel Jonathan Grossberg daniel L.Barrow Matthew F.Gary Ali M.Alawieh Department of Neurosurgery Emory University School of MedicineAtlantaGAUSA Department of Neurology Yale UniversityNew HavenCTUSA Center for Neurotrauma Multiomics&Biomarkers(CNMB)Morehouse School of MedicineAtlantaGAUSA

Spinal cord injury remains a major cause of disability in young adults,and beyond acute decompression and rehabilitation,there are no pharmacological treatments to limit the progression of injury and optimize recovery in this *** the thorough investigation of the complement system in triggering and propagating cerebral neuroinflammation,a similar role for complement in spinal neuroinflammation is a focus of ongoing *** this work,we survey the current literature investigating the role of complement in spinal cord injury including the sources of complement proteins,triggers of complement activation,and role of effector functions in the *** study relevant data demonstrating the different triggers of complement activation after spinal cord injury including direct binding to cellular debris,and or activation via antibody binding to damage-associated molecular *** effector functions of complement have been implicated in spinal cord injury,and we critically evaluate recent studies on the dual role of complement anaphylatoxins in spinal cord injury while emphasizing the lack of pathophysiological understanding of the role of opsonins in spinal cord *** this pathophysiological review,we systematically review the different translational approaches used in preclinical models of spinal cord injury and discuss the challenges for future translation into human *** review emphasizes the need for future studies to dissect the roles of different complement pathways in the pathology of spinal cord injury,to evaluate the phases of involvement of opsonins and anaphylatoxins,and to study the role of complement in white matter degeneration and regeneration using translational strategies to supplement genetic models.

关键词： complement neuroinflammation neuroplasticity regeneration spinal cord injury targeted therapy

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Dysregulation of genes involved in the long-chain fatty acid transport in pancreatic ductal adenocarcinoma

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 199-206页

作者： Radu Cristian Poenaru Elena Milanesi Andrei Marian Niculae Anastasia-Maria Dobre Catalina Vladut Mihai Ciocîrlan daniel Vasile Balaban Vlad Herlea Maria Dobre Mihail Eugen Hinescu Faculty of Medicine Carol Davila University of Medicine and PharmacyBucharest 050474Romania Department of Radiobiology Victor Babes National Institute of PathologyBucharest 050096Romania Department of Pathology Victor Babes National Institute of PathologyBucharest 050096Romania Department of Gastroenterology Prof.Dr.Agrippa Ionescu Clinical Emergency HospitalBucharest 011356Romania Department of Pathology Fundeni Clinical InstituteBucharest 022258Romania

BACKGROUND Pancreatic ductal adenocarcinoma(PDAC)is an aggressive lethal malignancy with limited options for treatment and a 5-year survival rate of 11%in the United *** for other types of tumors,such as colorectal cancer,aberrant de novo lipid synthesis and reprogrammed lipid metabolism have been suggested to be associated with PDAC development and *** To identify the possible involvement of lipid metabolism in PDAC by analyzing in tumoral and non-tumoral tissues the expression level of the most relevant genes involved in the long-chain fatty acid(FA)import into *** A gene expression analysis of FASN,CD36,SLC27A1,SLC27A2,SLC27A3,SLC27A4,SLC27A5,ACSL1,and ACSL3 was performed by qRT-PCR in 24 tumoral PDAC tissues and 11 samples from non-tumoral pancreatic tissues obtained via fine needle aspiration or via surgical *** genes were considered significantly dysregulated between the groups when the p value was<0.05 and the fold change(FC)was≤0.5 and≥*** We found that three FA transporters and two long-chain acyl-CoA synthetases genes were significantly upregulated in the PDAC tissue compared to the non-tumoral tissue:SLC27A2(FC=5.66;P=0.033),SLC27A3(FC=2.68;P=0.040),SLC27A4(FC=3.13;P=0.033),ACSL1(FC=4.10;P<0.001),and ACSL3(FC=2.67;P=0.012).We further investigated any possible association between the levels of the analyzed mRNAs and the specific characteristics of the tumors,including the anatomic location,the lymph node involvement,and the presence of metastasis.A significant difference in the expression of SLC27A3(FC=3.28;P=0.040)was found comparing patients with and without lymph nodes involvement with an overexpression of this transcript in 17 patients presenting tumoral cells in the lymph *** Despite the low number of patients analyzed,these preliminary results seem to be *** lipid metabolism through a broad strategy could be a beneficial way to treat this *** in vitro and in vivo s

关键词： Carcinoma Pancreatic ductal Fatty acid transport Gene expression Biomarkers

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Regulator of G protein signaling 6 mediates exercise-induced recovery of hippocampal neurogenesis,learning,and memory in a mouse model of Alzheimer’s disease

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Neural Regeneration Research 2025年第10期20卷 2969-2981页

作者： Mackenzie M.Spicer Jianqi Yang daniel Fu Alison N.DeVore Marisol Lauffer Nilufer S.Atasoy Deniz Atasoy Rory A.Fisher Department of Neuroscience and Pharmacology University of Iowa Carver College of MedicineIowa CityIAUSA Iowa Neuroscience Institute University of Iowa Carver College of MedicineIowa CityIAUSA Interdisciplinary Graduate Program in Molecular Medicine University of Iowa Carver College of MedicineIowa CityIAUSA Neural Circuits and Behavior Core University of Iowa Carver College of MedicineIowa CityIAUSA

Hippocampal neuronal loss causes cognitive dysfunction in Alzheimer’s *** hippocampal neurogenesis is reduced in patients with Alzheimer’s *** stimulates adult hippocampal neurogenesis in rodents and improves memory and slows cognitive decline in patients with Alzheimer’s ***,the molecular pathways for exercise-induced adult hippocampal neurogenesis and improved cognition in Alzheimer’s disease are poorly ***,regulator of G protein signaling 6(RGS6)was identified as the mediator of voluntary running-induced adult hippocampal neurogenesis in ***,we generated novel RGS6fl/fl;APP_(SWE) mice and used retroviral approaches to examine the impact of RGS6 deletion from dentate gyrus neuronal progenitor cells on voluntary running-induced adult hippocampal neurogenesis and cognition in an amyloid-based Alzheimer’s disease mouse *** found that voluntary running in APP_(SWE) mice restored their hippocampal cognitive impairments to that of control *** cognitive rescue was abolished by RGS6 deletion in dentate gyrus neuronal progenitor cells,which also abolished running-mediated increases in adult hippocampal *** hippocampal neurogenesis was reduced in sedentary APP_(SWE) mice versus control mice,with basal adult hippocampal neurogenesis reduced by RGS6 deletion in dentate gyrus neural precursor ***6 was expressed in neurons within the dentate gyrus of patients with Alzheimer’s disease with significant loss of these RGS6-expressing ***,RGS6 mediated voluntary running-induced rescue of impaired cognition and adult hippocampal neurogenesis in APP_(SWE) mice,identifying RGS6 in dentate gyrus neural precursor cells as a possible therapeutic target in Alzheimer’s disease.

关键词： adult hippocampal neurogenesis Alzheimer’s disease dentate gyrus exercise learning/memory neural precursor cells regulator of G protein signaling 6(RGS6)

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Brava和自体脂肪移植是一种安全有效的隆乳选择：一项6年，81例多中心前瞻性研究结果（摘要）

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中国美容整形外科杂志 2012年第7期23卷 I0003-I0003页

作者： Roger K. Khouri Marita Eisenmann-Klein Eufemiano. Cardoso Brian C. Cooley daniel. kacher Eva Gombos Thomas J. Baker 朱利娜魏峰高景恒张晨迈阿密乳房中心美国佛罗里达州比斯坎湾《中国美容整形外科杂志》编辑部大连大学附属新华医院整形外科

背景与目的隆乳术中采用自体脂肪移植是经科学认证的有吸引力的选择。方法多中心前瞻性研究中，纳入81例女性，年龄17—63岁，均使用Brava设备4周。Brava是一个类似乳罩装置、负压体外组织扩张器。而后利用10～14个针刺位点以三维扇形... 详细信息

背景与目的隆乳术中采用自体脂肪移植是经科学认证的有吸引力的选择。方法多中心前瞻性研究中，纳入81例女性，年龄17—63岁，均使用Brava设备4周。Brava是一个类似乳罩装置、负压体外组织扩张器。而后利用10～14个针刺位点以三维扇形模式对每个乳房注射自体脂肪（平均每个乳房注射277ml）。受试者在注射后24h内重新使用Brava，并使用7d以上。利用磁共振成像技术扫描治疗前和治疗后的乳房体积，并与6篇已报道的自体脂肪隆乳术（未使用扩张器）报道的Meta分析结果相比较。随访期为1～6年（平均为3．7年）。结果3—6个月内乳房体积没有变化。接受治疗的女性中有71例按要求使用Brava，其结果是1年内每个乳房体积增加233ml，而之前报道的没有使用Brava的女性乳房体积只增加134ml（P〈0．00001）。使用Brava扩张的移植存活率为（82±18）％，而未使用Brava的移植存活率为（55±18）％（P〈0．00001）。且移植前的Brava扩张与乳房增大的体积有强烈的线性相关性（R2=0．87）。未发现可疑的乳房肿块或结节。1年后影像评估时，磁共振成像技术发现脂肪坏死的发生率为16％。结论自体脂肪移植术前使用Brava扩张器可使乳房体积明显增大，且脂肪植入点更多，移植成活率更高，移植物坏死和并发症最少，证明该方法具有很高的安全性和有效性。临床问题／证据等级：疗法，Ⅳ级。

关键词：多中心前瞻性研究自体脂肪移植隆乳术安全性磁共振成像技术组织扩张器乳房体积移植存活率

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