Sclerosis

硬化
  • 文章类型: Journal Article
    本研究旨在分析系统性硬皮病(SSc)患者与正常皮肤相比的真皮厚度变化,并比较弥漫性和局限性皮肤受累的临床形式。研究组由诊断为SSc且病史不超过5年的女性患者组成。超声检查的感兴趣区域包括第三根手指的近端指骨,第二掌骨间隙,和前臂下三分之一的延伸表面。该研究包括20名诊断为SSc的患者和14名对照。根据临床形式将SSc患者细分为两个亚组。与对照组相比,SSc患者在所有三个皮肤区域的平均测量值均较高,在手和前臂区域具有统计学上的显着差异。表现为弥漫性SSc的患者,平均而言,与所有检查的皮肤区域的有限SSc相比,皮肤厚度更高,仅在前臂区域有统计学上的显着差异。根据疾病表现,仅在弥漫性SSc组中肺动脉高压的存在方面观察到显著差异.总之,皮肤超声是诊断和量化系统性硬皮病皮肤纤维化的一种有用和可利用的成像方法。
    This study aims to analyze the changes in dermal thickness in patients with systemic scleroderma (SSc) in comparison with normal skin and also compare clinical forms with diffuse and limited cutaneous involvement. The study group consisted of female patients diagnosed with SSc with a disease history not exceeding 5 years. The areas of interest for ultrasound examination included the proximal phalanx of the third finger, the second intermetacarpal space, and the extension surface of the lower third of the forearm. The study included 20 patients diagnosed with SSc and 14 controls. SSc patients were subdivided into two subgroups based on the clinical form. Compared to the control group, patients with SSc had higher mean measurements in all three skin areas, with statistically significant differences in the hand and forearm areas. Patients with diffuse SSc displayed, on average, higher skin thickness compared to limited SSc in all skin areas examined, with a statistically significant difference only in the forearm area. Based on disease manifestations, significant differences were observed only with regard to the presence of pulmonary hypertension in the diffuse SSc group. In conclusion, skin ultrasound is a useful and accessible imaging method for diagnosing and quantifying dermal fibrosis in systemic scleroderma.
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  • 文章类型: Journal Article
    目的:本研究旨在确定海马T2高强度是否可预测高热性癫痫持续状态的后遗症,包括海马萎缩,硬化症,和内侧颞叶癫痫。
    方法:在高热状态后平均4.4(SD=5.5,中位数=2.0)天内获得了>200名婴儿的急性磁共振成像(MRI),并在大约1、5和10年进行了MRI随访。海马大小,形态学,和T2信号强度由不了解临床细节的神经放射科医师进行视觉评分。海马容积法提供了定量测量。在发生两次或更多次无缘无故的癫痫发作时,受试者被重新评估癫痫.使用总脑体积将海马体积标准化。
    结果:22例急性海马T2高强度患者中有14例返回随访MRI,10人发展为明确的海马硬化,持续了10年的随访。最初看起来正常的海马在视觉检查中保持正常。然而,在海马体正常的受试者中,体积表明男性,但不是女性,海马比对照组小,但是在发热状态下没有看到海马不对称的增加。44名受试者发展为癫痫;六个发展为内侧颞叶癫痫,六个,两个有明确的,两个人模棱两可,两个没有海马硬化。只有一名受试者在没有初始高强度的情况下发展了内侧颞叶癫痫,那个受试者有海马旋转不良。所有类型癫痫的十年累积发病率,包括内侧颞叶癫痫,在初始T2高强度的受试者中最高,在信号正常且无其他脑异常的受试者中最低。
    结论:高热性癫痫持续状态后海马T2高强度预测海马硬化和颞叶内侧癫痫的可能性。在急性发作后MRI中,海马外观正常,随后外观保持正常。对称增长,降低癫痫的风险。体积测量检测到发热状态男性海马体积轻度减少。
    OBJECTIVE: This study was undertaken to determine whether hippocampal T2 hyperintensity predicts sequelae of febrile status epilepticus, including hippocampal atrophy, sclerosis, and mesial temporal lobe epilepsy.
    METHODS: Acute magnetic resonance imaging (MRI) was obtained within a mean of 4.4 (SD = 5.5, median = 2.0) days after febrile status on >200 infants with follow-up MRI at approximately 1, 5, and 10 years. Hippocampal size, morphology, and T2 signal intensity were scored visually by neuroradiologists blinded to clinical details. Hippocampal volumetry provided quantitative measurement. Upon the occurrence of two or more unprovoked seizures, subjects were reassessed for epilepsy. Hippocampal volumes were normalized using total brain volumes.
    RESULTS: Fourteen of 22 subjects with acute hippocampal T2 hyperintensity returned for follow-up MRI, and 10 developed definite hippocampal sclerosis, which persisted through the 10-year follow-up. Hippocampi appearing normal initially remained normal on visual inspection. However, in subjects with normal-appearing hippocampi, volumetrics indicated that male, but not female, hippocampi were smaller than controls, but increasing hippocampal asymmetry was not seen following febrile status. Forty-four subjects developed epilepsy; six developed mesial temporal lobe epilepsy and, of the six, two had definite, two had equivocal, and two had no hippocampal sclerosis. Only one subject developed mesial temporal epilepsy without initial hyperintensity, and that subject had hippocampal malrotation. Ten-year cumulative incidence of all types of epilepsy, including mesial temporal epilepsy, was highest in subjects with initial T2 hyperintensity and lowest in those with normal signal and no other brain abnormalities.
    CONCLUSIONS: Hippocampal T2 hyperintensity following febrile status epilepticus predicted hippocampal sclerosis and significant likelihood of mesial temporal lobe epilepsy. Normal hippocampal appearance in the acute postictal MRI was followed by maintained normal appearance, symmetric growth, and lower risk of epilepsy. Volumetric measurement detected mildly decreased hippocampal volume in males with febrile status.
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  • 文章类型: Journal Article
    背景:进行性系统性硬化症或系统性硬皮病(SS)是一种慢性和罕见的自身免疫性疾病,主要影响皮肤和各种内脏器官。雷诺现象和数字溃疡是影响足部的一些症状,导致患者生活质量下降。这项研究的目的是确定SS患者脚的功能,并确定对其日常生活的影响。
    方法:165名患者(154名女性,招募了11名被诊断为SS的男性),平均年龄为46.29±11.36岁,平均体重指数(BMI)为24.90±5.77。每位参与者完成了足功能指数(FFI)问卷和系统性硬化症问卷(SySQ)。进行多变量分析以确定哪些因素与两个问卷中的较高得分相关。
    结果:32.1%的参与者(n=53)患有爪趾畸形,79.4%(n=131)的雷诺病和20%(n=33)的足部溃疡史。51.5%的参与者(n=85)出现指甲症状,最常见的迹象是增厚,硬化和黄色着色。FFI问卷最终得分为3.51±2.41(0-9.9),疼痛分量表最高,得分为5.06±2.75,其次是足部残疾(3.26±2.91)和执行活动困难(1.55±2.22)。SySQ问卷最终得分为0.95±0.45(0.18-2.45),得分最高的分量表是症状频率(1.30±0.47),症状强度(1.11±0.55),和一般技能限制(0.47±0.51)。在最终FFI评分和最终SySQ评分之间观察到高度相关性(r=0.712;p=<0.001)。此外,在足部活动限制和一般技能限制之间(r=0.658;p=<0.001)。在足部疼痛评分和总体症状强度之间观察到中度相关性(r=0.482;p=<0.001)。此外,在足部残疾和总体症状频率之间(r=0.556;p=<0.001)。多变量分析(R20.51)显示最终的FFI评分与最终的SySQ评分有显著的关系(p<0.001)。年龄之间没有发现显著的相关性(p=0.15),性别(p=0.49),BMI(p=0.74)或诊断时间(p=0.57)和FFI。
    结论:SS是一种影响患者足部功能的疾病,对疼痛的影响更大。最终的FFI得分和最终的SySQ得分之间存在相关性,因此,改善足部功能可以帮助改善患有硬化症的患者的整体功能。
    BACKGROUND: Progressive systemic sclerosis or systemic scleroderma (SS) is a chronic and rare autoimmune disease that mainly affects the skin and various internal organs. Raynaud\'s phenomenon and digital ulcers are some of the symptoms that affect the foot, causing a decrease in the quality of life of patients. The objective of this study is to determine the functionality of the feet in patients with SS and determine the impact on their daily lives.
    METHODS: A sample of 165 patients (154 women, 11 men) diagnosed with SS with a mean age of 46.29 ± 11.36 years and a mean body mass index (BMI) of 24.90 ± 5.77 was recruited. Each participant completed the Foot Function Index (FFI) questionnaire and the Systemic Sclerosis Questionnaire (SySQ). A multivariate analysis was performed to determine which factors were related to a higher score in both questionnaires.
    RESULTS: 32.1% of the participants (n = 53) had claw toe deformities, 79.4% (n = 131) Raynaud\'s disease and 20% (n = 33) a history of foot ulcers. 51.5% of the participants (n = 85) presented symptoms in their nails, the most frequent sign being thickening, hardening and yellow coloration. The final score of the FFI questionnaire was 3.51 ± 2.41 (0-9.9), the pain subscale being the highest, with a score of 5.06 ± 2.75, followed by foot disability (3.26 ± 2.91) and difficulty performing activities (1.55 ± 2.22). The final score of the SySQ questionnaire was 0.95 ± 0.45 (0.18-2.45), and the subscales with the highest score were symptom frequency (1.30 ± 0.47), symptom intensity (1.11 ± 0.55), and general skill limitation (0.47 ± 0.51). A high correlation was observed between the final FFI score and the final SySQ score (r = 0.712; p=<0.001). Also, between foot activity limitation and general skill limitation (r = 0.658; p=<0.001). A moderate correlation was observed between foot pain score and overall symptom intensity (r = 0.482; p=<0.001). Also, between foot disability and overall symptom frequency (r = 0.556; p=<0.001). The multivariate analysis (R2 0.51) showed that the final FFI score had a significant relationship with the final SySQ score (p < 0.001). No significant correlation was found between age (p = 0.15), gender (p = 0.49), BMI (p = 0.74) or time of diagnosis (p = 0.57) and FFI.
    CONCLUSIONS: SS is a disease that affects foot functionality in patients, with a greater impact on the pain scale. There is a correlation between the final FFI score and the final SySQ score, so improving foot functionality could help to improve the overall functionality of the patient with sclerosis.
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  • 文章类型: Journal Article
    目的:癫痫患者通常按临床变量分组。定量神经成像度量可以为患者分组提供数据驱动的替代方案。在这项工作中,我们利用超高场强7-T结构磁共振成像(MRI)来表征耐药局灶性癫痫患者海马亚场和丘脑核中的体积萎缩模式.
    方法:本研究包括42例耐药癫痫患者和13例7-T结构神经影像学对照。我们测量了海马亚场和丘脑核体积,并应用了一种无监督的机器学习算法,潜在狄利克雷分配(LDA),评估患者海马亚区和丘脑核的萎缩模式。我们研究了预定义的临床组和估计的萎缩模式之间的关联。此外,我们采用数据驱动的方法对LDA因子进行分层聚类对患者进行分组.
    结果:在内侧颞叶硬化(MTS)患者中,我们发现所有同侧海马亚区(错误发现率校正的p[pFDR]<.01)以及一些同侧(pFDR<.05)和对侧(pFDR<.01)丘脑核中的体积均显著减少.在左颞叶癫痫(L-TLE)中,我们看到同侧海马和一些双侧丘脑萎缩(pFDR<0.05),而在右颞叶癫痫(R-TLE)中,观察到广泛的双侧海马和丘脑萎缩(pFDR<0.05)。萎缩因素表明,我们的MTS队列有两种萎缩表型:一种影响同侧海马,另一种影响同侧海马和双侧前丘脑。萎缩因素在R-TLE中表现为后丘脑萎缩,而前丘脑萎缩模式在L-TLE中更为常见。最后,萎缩模式的层次聚类概括了具有同质临床特性的聚类。
    结论:利用7-TMRI,我们证实癫痫患者海马和丘脑广泛萎缩.通过无监督的机器学习,我们证明了体积萎缩的模式因疾病亚型而异.将这些萎缩模式纳入临床实践可以帮助更好地对患者进行手术治疗和特定设备植入策略的分层。
    OBJECTIVE: Epilepsy patients are often grouped together by clinical variables. Quantitative neuroimaging metrics can provide a data-driven alternative for grouping of patients. In this work, we leverage ultra-high-field 7-T structural magnetic resonance imaging (MRI) to characterize volumetric atrophy patterns across hippocampal subfields and thalamic nuclei in drug-resistant focal epilepsy.
    METHODS: Forty-two drug-resistant epilepsy patients and 13 controls with 7-T structural neuroimaging were included in this study. We measured hippocampal subfield and thalamic nuclei volumetry, and applied an unsupervised machine learning algorithm, Latent Dirichlet Allocation (LDA), to estimate atrophy patterns across the hippocampal subfields and thalamic nuclei of patients. We studied the association between predefined clinical groups and the estimated atrophy patterns. Additionally, we used hierarchical clustering on the LDA factors to group patients in a data-driven approach.
    RESULTS: In patients with mesial temporal sclerosis (MTS), we found a significant decrease in volume across all ipsilateral hippocampal subfields (false discovery rate-corrected p [pFDR] < .01) as well as in some ipsilateral (pFDR < .05) and contralateral (pFDR < .01) thalamic nuclei. In left temporal lobe epilepsy (L-TLE) we saw ipsilateral hippocampal and some bilateral thalamic atrophy (pFDR < .05), whereas in right temporal lobe epilepsy (R-TLE) extensive bilateral hippocampal and thalamic atrophy was observed (pFDR < .05). Atrophy factors demonstrated that our MTS cohort had two atrophy phenotypes: one that affected the ipsilateral hippocampus and one that affected the ipsilateral hippocampus and bilateral anterior thalamus. Atrophy factors demonstrated posterior thalamic atrophy in R-TLE, whereas an anterior thalamic atrophy pattern was more common in L-TLE. Finally, hierarchical clustering of atrophy patterns recapitulated clusters with homogeneous clinical properties.
    CONCLUSIONS: Leveraging 7-T MRI, we demonstrate widespread hippocampal and thalamic atrophy in epilepsy. Through unsupervised machine learning, we demonstrate patterns of volumetric atrophy that vary depending on disease subtype. Incorporating these atrophy patterns into clinical practice could help better stratify patients to surgical treatments and specific device implantation strategies.
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  • 文章类型: Controlled Clinical Trial
    Morphea是一种病因不明的罕见疾病,对皮肤硬化和软组织萎缩没有满意的治疗方法。
    为了提供临床,组织学,和转录组证据表明,用新鲜脂肪和冷冻保存的基质血管部分凝胶(SVF凝胶)对硬叶进行顺序脂肪移植具有抗硬化和再生作用。
    这个单中心,非随机对照试验于2022年1月至2023年3月在南方医院整形外科进行,南方医科大学,包括患有早发型或晚发型的成年参与者,他们表现出不同程度的皮肤硬化和软组织缺损。
    第1组接受新鲜脂肪和冷冻保存的SVF凝胶的顺序移植(术后1和2个月)。第2组接受单次自体脂肪移植。所有患者均接受12个月的随访。
    主要结果包括由2名独立盲症皮肤科医生评估的改良的局部硬皮病皮肤严重程度指数(mLoSSI)和局部硬皮病皮肤损伤指数(LoSDI)评分的变化。还评估了硬头皮肤病变的组织学和转录组变化。
    44名患者(中位[IQR]年龄,26[23-33]岁;36名妇女[81.8%])登记,24人(54.5%)被分配到第1组,20人(45.5%)被分配到第2组。未发现严重不良事件。12个月时的平均(SD)mLoSSI评分显示,第1组降低1.6(1.50),第2组降低0.9(1.46)(P=0.13),而12个月时的平均(SD)LoSDI评分显示,第1组降低4.3(1.34),第2组降低2.1(1.07)(P<.001),表明与第2组相比,第1组在硬叶皮肤损伤方面有更显著的改善,但没有疾病活动。组织学分析显示,第1组患者的皮肤再生改善,皮肤硬化减少,而第2组患者的皮肤活检标本没有显着变化。第1组患者皮肤活检标本的转录组分析表明,通过NFκB的肿瘤坏死因子α信号传导可能有助于序贯脂肪移植的免疫抑制和抗纤维化作用。总共捕获了15个hub基因,其中许多与硬伤发病机制相关的基因被下调,并通过免疫组织化学进行了验证,例如EDN1、PAI-1和CTGF。
    这项非随机试验的结果表明,新鲜脂肪和冷冻保存的SVF凝胶序贯脂肪移植是安全的,其治疗效果优于单一自体脂肪移植,mLoSSI和LoSDI评分得到改善。组织学和转录组变化进一步支持治疗后的有效性。
    中国临床试验注册中心标识符:ChiCTR2200058003。
    UNASSIGNED: Morphea is a rare disease of unknown etiology without satisfactory treatment for skin sclerosis and soft tissue atrophy.
    UNASSIGNED: To provide clinical, histologic, and transcriptome evidence of the antisclerotic and regenerative effects of sequential fat grafting with fresh fat and cryopreserved stromal vascular fraction gel (SVF gel) for morphea.
    UNASSIGNED: This single-center, nonrandomized controlled trial was conducted between January 2022 and March 2023 in the Department of Plastic and Reconstructive Surgery of Nanfang Hospital, Southern Medical University and included adult participants with early-onset or late-onset morphea who presented with varying degrees of skin sclerosis and soft tissue defect.
    UNASSIGNED: Group 1 received sequential grafting of fresh fat and cryopreserved SVF gel (at 1 and 2 months postoperation). Group 2 received single autologous fat grafting. All patients were included in a 12-month follow-up.
    UNASSIGNED: The primary outcome included changes in the modified Localized Scleroderma Skin Severity Index (mLoSSI) and Localized Scleroderma Skin Damage Index (LoSDI) scores as evaluated by 2 independent blinded dermatologists. The histologic and transcriptome changes of morphea skin lesions were also evaluated.
    UNASSIGNED: Of 44 patients (median [IQR] age, 26 [23-33] years; 36 women [81.8%]) enrolled, 24 (54.5%) were assigned to group 1 and 20 (45.5%) to group 2. No serious adverse events were noted. The mean (SD) mLoSSI scores at 12 months showed a 1.6 (1.50) decrease in group 1 and 0.9 (1.46) in group 2 (P = .13), whereas the mean (SD) LoSDI scores at 12 months showed a 4.3 (1.34) decrease in group 1 and 2.1 (1.07) in group 2 (P < .001), indicating that group 1 had more significant improvement in morphea skin damage but not disease activity compared with group 2. Histologic analysis showed improved skin regeneration and reduced skin sclerosis in group 1, whereas skin biopsy specimens of group 2 patients did not show significant change. Transcriptome analysis of skin biopsy specimens from group 1 patients suggested that tumor necrosis factor α signaling via NFκB might contribute to the immunosuppressive and antifibrotic effect of sequential fat grafting. A total of 15 hub genes were captured, among which many associated with morphea pathogenesis were downregulated and validated by immunohistochemistry, such as EDN1, PAI-1, and CTGF.
    UNASSIGNED: The results of this nonrandomized trial suggest that sequential fat grafting with fresh fat and cryopreserved SVF gel was safe and its therapeutic effect was superior to that of single autologous fat grafting with improved mLoSSI and LoSDI scores. Histological and transcriptomic changes further support the effectiveness after treatment.
    UNASSIGNED: Chinese Clinical Trial Registry identifier: ChiCTR2200058003.
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  • 文章类型: Journal Article
    目的:立体定向脑电图引导三维射频热凝(SEEG-3DRFTC)是一种治疗内侧颞叶癫痫伴海马硬化(MTLE-HS)的微创方法。本研究旨在探讨MTLE-HS患者SEEG-3DRFTC治疗后的长期预后。
    方法:这项单中心回顾性研究包括2016年1月至2018年5月接受SEEG-3DRFTC治疗的28例MTLE-HS患者。术后疗效评价采用Engel分型,随访5年。
    结果:手术后1至5年(手术后12个月)归为EngelI的患者比例为72.41%,67.86%(术后18个月),62.07%(术后24个月),50.00%(术后36个月),42.86%(术后48个月),42.86%(术后60个月),分别。关于长期疗效,根据恩格尔分类,SEEG-3DRFTC显示出改进的空间。
    结论:这是第一项长期随访评估SEEG-3DRFTC对MTLE-HS疗效的研究。SEEG-3DRFTC是MTLE-HS患者的有希望的替代方案。
    OBJECTIVE: Stereo-electroencephalography-guided three-dimensional radiofrequency thermocoagulation (SEEG-3D RFTC) is a minimally invasive treatment for mesial temporal lobe epilepsy with hippocampal sclerosis (MTLE-HS). This study aimed to investigate the long-term prognosis after SEEG-3D RFTC treatment in patients with MTLE-HS.
    METHODS: This single-center retrospective study included 28 patients with MTLE-HS treated with SEEG-3D RFTC from January 2016 to May 2018. Postoperative curative effects were evaluated using the Engel classification, and the patients were followed up for 5 years.
    RESULTS: The proportions of patients categorized as Engel I between 1 and 5 years after surgery were 72.41% (12 months after surgery), 67.86% (18 months after surgery), 62.07% (24 months after surgery), 50.00% (36 months after surgery), 42.86% (48 months after surgery), and 42.86% (60 months after surgery), respectively. Regarding long-term efficacy, based on the Engel classification, SEEG-3D RFTC showed room for improvement.
    CONCLUSIONS: This was the first study to evaluate the efficacy of SEEG-3D RFTC for MTLE-HS with long-term follow-up. SEEG-3D RFTC is a promising alternative for patients with MTLE-HS.
    CONCLUSIONS: This study explored the potential of stereoelectroencephalography-guided three-dimensional radiofrequency thermocoagulation, a minimally invasive approach, for treating medial temporal lobe epilepsy with hippocampal sclerosis. Involving 28 patients, the research tracked the treatment\'s success over five years using the Engel classification. Initial results were promising, with 72.41% of patients achieving the most favorable outcome (Engel I) at one year. While there was a gradual decrease in this proportion over time, 42.86% of patients maintained this positive outcome at five years, highlighting the treatment\'s potential for long-term efficacy.
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  • 文章类型: Journal Article
    目的:本研究的目的是评估颞下颌关节紊乱病(TMD)患者颞下颌关节(TMJ)的变化与年龄,性别,以及使用锥形束计算机断层扫描(CBCT)的TMJ变化类型。
    方法:检索并评估200例患者(123名女性和67名男性)的CBCT记录。右侧和左侧TMJ分别评估,总共有400台TMJ。使用按需3D应用对图像进行分析。射线照相结果被归类为侵蚀,主要是增殖变化,包括髁的扁平化和骨赘,硬化症,伊利囊肿,髁突发育不全和增生,强直,和关节腔。数据分析采用描述性统计,配对T检验,SPSS软件中的重复测量方差分析(方差分析)。
    结果:观察到的最普遍的髁突骨改变类型是骨赘(63.5%),其次是关节面变平(42%)。侵蚀(40%),强直(10%)和硬化(10%)。7.5%的关节表现为髁突增生,但只有2%的关节表现为发育不全。观察到的最不普遍的变化是伊利囊肿(1%)。骨赘是在所有年龄组和男女中观察到的最普遍的变化,除了31〜50岁的男性,其中扁平化更为频繁。10~30岁年龄组的性别和糜烂患病率差异有统计学意义(P=0.001);同年龄组的性别和髁突增生差异有统计学意义。
    结论:根据本研究的结果,TMJ骨性变化的患病率从最高到最低如下:骨赘,关节表面变平,侵蚀,强直,硬化症,增生性髁突,髁突发育不良和伊利囊肿。CBCT是用于评估TMJ骨结构的准确的3维成像模式。
    OBJECTIVE: The aim of this study is to evaluate the changes in the temporomandibular joint (TMJ) in patients with temporomandibular disorder (TMD) and the relationship between age, sex, and types of TMJ change using Cone Beam Computed Tomography (CBCT).
    METHODS: CBCT records of 200 patients (123 women and 67 men) were retrieved and assessed. Right and left TMJs were evaluated separately, resulting in a total of 400 TMJs. The images were analyzed using On demand 3D Application The radiographic findings were classified as erosion, proliferative changes mainly, including flattening and osteophytes of the condyle, sclerosis, Ely cyst, hypoplasia and hyperplasia of the condyles, ankylosis, and joint cavity. Data analysis was performed using descriptive statistics, paired T-tests, and repeated measure ANOVA (Analysis of Variance) in SPSS Software.
    RESULTS: The most prevalent types of condylar bony changes observed was osteophyte (63.5%) followed by flattening of the articular surface (42%), erosion (40%), ankylosis (10%) and sclerosis (10%). 7.5% of joints showed hyperplastic condyles but only 2% showed hypoplasia. The least prevalent change observed was Ely Cyst (1%). Osteophyte was the most prevalent change observed in all age groups and both sexes except for men aged 31 ~ 50, where flattening was more frequent. A statistically significant difference was found between sex and prevalence of erosion in the age group of 10 ~ 30 (P = 0.001); as well as between sex and condylar hyperplasia in the same age group.
    CONCLUSIONS: Based on the findings of this research, the prevalence of bony changes of TMJ from highest to lowest is as follows: osteophyte, flattening of the articular surface, erosion, ankylosis, sclerosis, hyperplastic condyles, hypoplastic condyles and Ely Cyst. CBCT is an accurate 3 dimensional imaging modality for assessment of TMJ bony structures.
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  • 文章类型: Journal Article
    目的:本横断面研究旨在评估颞下颌关节(TMJ)前椎间盘移位(ADD)伴复位(ADDWR)和不伴复位(ADDWR)患者磁共振成像(MRI)扫描中骨骼变化的存在。
    方法:TMJ-MRI扫描筛查ADD的存在。285次扫描显示ADD,进一步分为ADDWR(n=188)和ADDWOR(n=97)。还评估和计算了下颌髁突和关节突的骨变化。卡方检验比较了这些骨变化与ADDWR和ADDWOR的存在的关联,显著性水平为5%。此外,计算患病率比(PR).
    结果:在下颌髁突,软骨下囊肿(p=0.035,PR=1.08)和骨水肿(p=0.044,PR=2.40),在ADDWR上更普遍,和全身性硬化症(p=0.015,PR=1.04),在ADDWER上更普遍,与ADD有显著关联。在关节隆起上,全身性硬化(p=0.015,PR=1.04)和关节表面平坦(p=0.003,PR=1.19)与ADD显著相关,两者在ADDWER上都更普遍。
    结论:骨改变是诊断为ADD的TMJ的常见发现。ADD的真正影响还不完全清楚,尽管临床医生应该意识到患有这种疾病的患者,提供早期诊断并改善患者预后。
    OBJECTIVE: This cross-sectional study aimed to evaluate the presence of bone changes on magnetic resonance imaging (MRI) scans of patients with temporomandibular joint (TMJ) anterior disc displacement (ADD) with reduction (ADDWR) and without reduction (ADDWoR).
    METHODS: TMJ-MRI scans were screened for the presence of ADD. 285 scans presented ADD, being further divided into ADDWR (n = 188) and ADDWoR (n = 97). Bone changes on the mandibular condyle and articular eminence were also assessed and computed. The chi-square test compared the association of these bone changes with the presence of ADDWR and ADDWoR, with a significance level of 5 %. Also, the prevalence ratio (PR) was calculated.
    RESULTS: In the mandibular condyle, subchondral cyst (p = 0.035, PR = 1.08) and bone edema (p = 0.044, PR = 2.40), more prevalent on ADDWR, and generalized sclerosis (p = 0.015, PR = 1.04), more prevalent on ADDWoR, presented significant association with ADD. On the articular eminence, generalized sclerosis (p = 0.015, PR = 1.04) and articular surface flattening (p = 0.003, PR = 1.19) presented significant association with ADD, both more prevalent on ADDWoR.
    CONCLUSIONS: Bone changes are usual findings in TMJ with ADD diagnosis. The real influence of ADD is not fully clear, although clinicians should be aware of patients with this condition, to provide an early diagnosis and improve patient´s prognosis.
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  • 文章类型: Journal Article
    在这个项目中,三种抗多发性硬化(MS)药物的药物递送应用的可能性(含有富马酸二罗肟(DXF),富马酸二甲酯(DMF),和富马酸单甲酯(MMF))通过使用一些杂原子修饰的石墨碳氮化物(g-C3N4)(作为纳米级载体)进行了系统研究。研究结果表明,As-g-C3N4QD不是药物递送的合适候选者(至少在DMF的情况下,和DXF药物);而,这将是一种精确的半导体传感器,用于选择性检测每种提到的试剂。此外,P掺杂以及原始g-C3N4QD的使用可能导致具有相对相同值(以电子伏特为单位)的弱电子信号。这意味着P-g-C3N4和g-C3N4QD不是用于检测三种考虑的药物中的每一种的良好传感器。然而,这两种吸附剂将是用于递送所有三种所述药物的合适载体。
    In this project, the possibility of drug delivery application of three anti-Multiple sclerosis (MS) agents (containing diroximel fumarate (DXF), dimethyl fumarate (DMF), and mono methyl fumarate (MMF)) by using some heteroatom decorated graphitic carbonitride (g-C3N4) (as nano-sized carriers) have been systematically investigated. The results of the study have indicated that As-g-C3N4 QD is not a suitable candidate for drug delivery (at least in the cases of DMF, and DXF drugs); while, it would be an accurate semiconductor sensor for selective detection of each mentioned agents. Also, the use of the P-doped as well as pristine g-C3N4 QD could lead to weak electronic signals with relatively same values (in electronvolts). It means that P-g-C3N4, and g-C3N4 QDs are not good sensors for detection of each of the three considered drugs. However, those two sorbents would be suitable carriers for delivering of all three mentioned pharmaceuticals.
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  • 文章类型: Journal Article
    背景:皮肤僵硬综合征(SSS)是一种罕见的疾病,其特征是皮肤硬化。已经报道了广泛和节段性SSS的病例。
    目的:报告一系列SSS的临床和组织病理学特征。
    方法:我们回顾性分析了从皮肤科收集的广泛和节段性SSS的临床和组织病理学特征。我们还比较了节段性SSS和硬皮之间的组织病理学。
    结果:31例,包括三个广泛的SSS和28个分段SSS,被收集。广泛的SSS的皮肤病变通常表现为集中在腰部的皮肤硬化,臀部,大腿,四肢近端,和肩膀有特定的异常步态和姿势。节段性SSS的皮肤病变通常表现为累及大腿的硬化斑块,腰部和臀部,与多毛症有关,色素沉着和鹅卵石外观。节段性SSS通常不会引起关节受限或严重的身体不适。组织病理学,SSS显示真皮或皮下组织中的成纤维细胞增殖和胶原硬化。与硬皮相比,SSS显示出更明显的成纤维细胞增殖,并且完全没有淋巴细胞浸润。
    结论:分段SSS代表SSS的主要变体。组织病理学,SSS显示成纤维细胞的增殖,硬化和没有炎症。
    BACKGROUND: Stiff skin syndrome (SSS) is a rare disease characterized by sclerosis of the skin. Cases of both widespread and segmental SSS have been reported.
    OBJECTIVE: To report the clinical and histopathological characteristics of a large series of SSS.
    METHODS: We retrospectively analysed the clinical and histopathological characteristics of widespread and segmental SSS collected from a dermatology department. We also compared histopathology between segmental SSS and morphea.
    RESULTS: Thirty-one cases, including three widespread SSS and 28 segmental SSS, were collected. Skin lesions of widespread SSS generally showed skin sclerosis concentrating over the lumbar, buttocks, thighs, proximal part of limbs, and shoulders with specific abnormal gait and posture. Skin lesions of segmental SSS generally showed sclerotic plaques involving the thigh, lumbar area and buttocks, associated with hypertrichosis, hyperpigmentation and a cobblestone appearance. Segmental SSS did not typically cause joint limitation or serious physical discomfort. Histopathologically, SSS showed proliferation of fibroblasts and sclerosis of collagen in the dermis or subcutaneous tissue. Compared with morphea, SSS showed more prominent proliferation of fibroblasts and completely lacked lymphocyte infiltration.
    CONCLUSIONS: Segmental SSS represents the major variant of SSS. Histopathologically, SSS shows proliferation of fibroblasts, sclerosis and an absence of inflammation.
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