edema

硬肿病
  • 文章类型: Journal Article
    探讨肿瘤周围水肿(PE)是否可以增强深度学习影像组学(DLR)模型预测乳腺癌腋窝淋巴结转移(ALNM)负担。回顾性纳入具有术前MRI的浸润性乳腺癌患者,并根据手术病理将其分为低(<2个淋巴结(LNs))和高(≥2个LNs)负荷组。PE在T2WI上进行评估,并在DCE-MRI中从MRI可见的肿瘤中提取肿瘤内和围肿瘤影像学特征。在训练队列中开发了用于LN负担预测的深度学习模型,并在独立队列中进行了验证。通过接收器工作特性(ROC)分析评估PE的增量值,使用Delong检验确认曲线下面积(AUC)的改善。这得到了净重新分类改进(NRI)和综合歧视改进(IDI)指标的补充。深度学习组合模型,将PE与选定的放射学特征相结合,在训练队列中,与MRI模型和DLR模型相比,AUC值明显更高(n=177)(AUC:0.953vs.0.849和0.867,p<0.05)和验证队列(n=111)(AUC:0.963vs.0.883和0.882,p<0.05)。互补分析表明,PE显著增强DLR模型的预测性能(分类NRI:0.551,p<0.001;IDI=0.343,p<0.001)。这些发现在验证队列中得到证实(分类NRI:0.539,p<0.001;IDI=0.387,p<0.001)。PE改良术前ALNM负荷预测的DLR模型,促进乳腺癌患者的个性化腋窝管理。
    To investigate whether peritumoral edema (PE) could enhance deep learning radiomic (DLR) model in predicting axillary lymph node metastasis (ALNM) burden in breast cancer. Invasive breast cancer patients with preoperative MRI were retrospectively enrolled and categorized into low (< 2 lymph nodes involved (LNs+)) and high (≥ 2 LNs+) burden groups based on surgical pathology. PE was evaluated on T2WI, and intra- and peri-tumoral radiomic features were extracted from MRI-visible tumors in DCE-MRI. Deep learning models were developed for LN burden prediction in the training cohort and validated in an independent cohort. The incremental value of PE was evaluated through receiver operating characteristic (ROC) analysis, confirming the improvement in the area under the curve (AUC) using the Delong test. This was complemented by net reclassification improvement (NRI) and integrated discrimination improvement (IDI) metrics. The deep learning combined model, incorporating PE with selected radiomic features, demonstrated significantly higher AUC values compared to the MRI model and the DLR model in the training cohort (n = 177) (AUC: 0.953 vs. 0.849 and 0.867, p < 0.05) and the validation cohort (n = 111) (AUC: 0.963 vs. 0.883 and 0.882, p < 0.05). The complementary analysis demonstrated that PE significantly enhances the prediction performance of the DLR model (Categorical NRI: 0.551, p < 0.001; IDI = 0.343, p < 0.001). These findings were confirmed in the validation cohort (Categorical NRI: 0.539, p < 0.001; IDI = 0.387, p < 0.001). PE improved preoperative ALNM burden prediction of DLR model, facilitating personalized axillary management in breast cancer patients.
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  • 文章类型: Journal Article
    黄花蒿,以抗疟疾活性而闻名,已经证明了抗炎的潜力。以前我们的研究小组报道了从植物中获得的富含倍半萜内酯的部分(Lac-FR)的抗炎和镇痛作用,含有青蒿素和脱氧青蒿素。在实验动物模型上评估了分离的化合物和Lac-FR,福尔马林试验表明,脱氧青蒿素可以减轻神经源性疼痛(56.55%)和炎性疼痛(45.43%)。这些发现优于青蒿素的效果(减少了28.66%和33.35%,分别)。在甩尾测试中,报告的抗伤害作用占最大可能作用的百分比(%MPE),脱氧青蒿素在0.5h内显示出比吗啡(75.94%)更低的镇痛作用(41.57%)。1.5h后,脱氧青蒿素的MPE(87.99%)超过了吗啡的作用(47.55%),没有用纳洛酮逆转。2小时后观察到的青蒿素的MPE(23.3%)低于脱氧青蒿素,不用阿片拮抗剂逆转。Lac-FR和青蒿素显示耳朵水肿减少43.37%和48.19%,分别,效果高于脱氧青蒿素(33.64%)。与白细胞介素-1β(IL-1β)(48.23%)和白细胞介素-6(IL-6)(44.49%)相比,青蒿素选择性地降低了肿瘤坏死因子-α(TNF-α)(76.96%)。与TNF-α(46.71%)和IL-1β(45.12%)相关,Lac-FR在IL-6减少中显示出更大的选择性(56.49%),而脱氧青蒿素选择性降低TNF-α(37.37%)。我们的研究结果表明,分离的内酯与阿片系统没有关系。脱氧青蒿素显示出比青蒿素更高的镇痛潜力。然而,青蒿素显示出更高的炎症和介质的减少,具有更好的抗炎活性结果。
    Artemisia annua L., known for antimalarial activity, has demonstrated evidence of anti-inflammatory potential. Previously our research group reported the anti-inflammatory and antinociceptive effect of a sesquiterpene lactone-enriched fraction (Lac-FR) obtained from plant, containing artemisinin and deoxyartemisinin. Both the isolated compounds and Lac-FR evaluated on experimental animal models, in the formalin test showed that deoxyartemisinin reduced both neurogenic pain (56.55 %) and inflammatory pain (45.43 %). These findings were superior to the effect of artemisinin (reduction of 28.66 % and 33.35 %, respectively). In the tail flick test, the antinociceptive effect reported as a percentage of the maximum possible effect (%MPE), deoxyartemisinin showed a lower antinociceptive effect (41.57 %) compared to morphine (75.94 %) in 0.5 h. After 1.5 h, the MPE of deoxyartemisinin (87.99 %) exceeded the effect of morphine (47.55 %), without reversal with naloxone. The MPE of artemisinin (23.3 %) observed after 2 h was lower than deoxiartemisinin, without reversal with the opioid antagonist. Lac-FR and artemisinin demonstrated reductions in ear edema of 43.37 % and 48.19 %, respectively, higher than the effect of deoxyartemisinin (33.64 %). Artemisinin reduced tumor necrosis factor alpha (TNF-α) (76.96 %) more selectively when compared to interleukin-1beta (IL-1β) (48.23 %) and interleukin-6 (IL-6) (44.49 %). Lac-FR showed greater selectivity in IL-6 reduction (56.49 %) in relationship to TNF-α (46.71 %) and IL-1β (45.12 %), whereas deoxyartemisinin selectively reduced TNF-α (37.37 %). The results of our study indicate that the lactones isolated did not have relationship with the opioid system. Deoxyartemisinin showed a higher antinociceptive potential than artemisinin. Whereas, artemisinin showed a higher reduction of inflammation and mediators, with a better anti-inflammatory activity outcome.
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  • 文章类型: Journal Article
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  • 文章类型: Journal Article
    在微创整容手术中使用填充剂治疗的增加相应地增加了相关副作用的种类和频率。最初,不受管制的程序导致主要副作用,如感染,异物反应,肉芽肿的形成.然而,严重的血管并发症,如皮肤和组织坏死和失明已成为公认的风险。填充剂治疗的副作用范围从轻度到危及生命,包括水肿,疼痛,压痛,麻木,出血,瘀伤,血肿,发红,红斑,色素沉着,过敏反应,瘙痒,瘙痒,廷德尔效应,不对称,不规则,迁移,皮肤和软组织感染,结节,肉芽肿,和血管受损。这些副作用分为早期和延迟型。许多并发症,特别是那些与血管异常有关的,经常与程序问题联系在一起,强调了解填料特性的重要性,注射技术,和面部解剖学。预防副作用是理想的,但是早期发现和治疗至关重要。根据其时机识别潜在的副作用并了解适当的先发制人的治疗方法至关重要。本讨论讨论非血管副作用,突出它们的发作,症状,和管理策略。全面了解和仔细管理这些副作用对于最大限度地减少并发症和确保患者在填充治疗中的安全至关重要。
    The increase in the use of filler treatments within minimally invasive cosmetic surgery has correspondingly escalated the variety and frequency of associated side effects. Initially, unregulated procedures led to primary side effects such as infections, foreign body reactions, and granuloma formation. However, severe vascular complications like skin and tissue necrosis and blindness have emerged as recognized risks. Side effects from filler treatments can range from mild to life-threatening, including edema, pain, tenderness, numbness, bleeding, bruising, hematoma, redness, erythema, pigmentation, allergic reactions, itching, pruritus, the Tyndall effect, asymmetry, irregularity, migration, skin and soft tissue infections, nodules, granulomas, and vascular compromise. These side effects are categorized into early and delayed types. Many complications, particularly those related to vascular abnormalities, are frequently linked to procedural issues, emphasizing the importance of understanding filler properties, injection techniques, and facial anatomy. Preventing side effects is ideal, but early detection and treatment are crucial. Recognizing potential side effects based on their timing and understanding appropriate preemptive treatment methods is essential. This discussion addresses non-vascular side effects, highlighting their onset, symptoms, and management strategies. The comprehensive understanding and careful management of these side effects are vital for minimizing complications and ensuring patient safety in filler treatments.
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  • 文章类型: Journal Article
    选择性环氧合酶-2抑制剂抗炎药(coxibs)与不良事件的发展有关,主要是胃肠道和心血管,但对肾脏的影响却鲜为人知.
    通过系统评价和荟萃分析评估coxibs与安慰剂相比的肾脏风险。
    评估coxibs的肾脏影响的随机对照试验(塞来昔布,依托考昔,lumiracoxib,帕瑞昔布,和伐地考昔)在PubMed中搜索,Embase,截至2024年3月,Scopus和其他来源。两名独立审核员进行了研究筛选,数据提取,和偏见风险评估。采用随机效应荟萃分析来计算与安慰剂相比,coxibs的肾脏效应的相对风险(RR)和95%置信区间(CI)以及研究之间的不一致性(I2)。使用建议分级评估来评估证据的确定性,开发和评估方法。
    在5284条检索记录中,包括49项研究(包括46份报告)。Coxibs增加了水肿的风险(RR1.46;95%CI1.15,1.86;I2=0%;34项研究,19,754名参与者;中等确定性证据),和塞来昔布增加了高血压或肾脏事件(RR1.24;95%CI1.08,1.43;I2=0%;2项研究,3589名参与者;中度确定性证据)。依托考昔增加高血压的风险(RR1.98;95%CI1.14,3.46;I2=34%;13项研究,6560名参与者;中度确定性证据);合并所有coxibs时没有观察到差异(RR1.26;95%CI0.91,1.76;I2=26%;30项研究,16,173名参与者;中等确定性证据)。
    考克斯可能会增加肾脏的不良反应,包括高血压和水肿。应该提高对coxibs的肾脏风险的认识,主要是高危患者。
    UNASSIGNED: Selective cyclooxygenase-2 inhibitor anti-inflammatory drugs (coxibs) are associated with the development of adverse events, mainly gastrointestinal and cardiovascular, but renal effects are less known.
    UNASSIGNED: To assess the renal risks of coxibs compared to placebo by means of a systematic review and meta-analysis.
    UNASSIGNED: Randomized controlled trials that assessed renal effects of coxibs (celecoxib, etoricoxib, lumiracoxib, parecoxib, and valdecoxib) were searched in PubMed, Embase, Scopus and other sources up to March 2024. Two independent reviewers performed study screening, data extraction, and risk of bias assessment. Random effect meta-analysis was employed to calculate the relative risks (RR) and 95% confidence intervals (CI) of renal effects of coxibs compared to placebo and inconsistency among studies (I 2 ). Certainty of evidence was assessed using the Grading of Recommendations Assessment, Development and Evaluation approach.
    UNASSIGNED: Out of 5284 retrieved records, 49 studies (comprising 46 reports) were included. Coxibs increased the risk of edema (RR 1.46; 95% CI 1.15, 1.86; I 2  = 0%; 34 studies, 19,754 participants; moderate-certainty evidence), and celecoxib increased hypertensive or renal events (RR 1.24; 95% CI 1.08, 1.43; I 2  = 0%; 2 studies, 3589 participants; moderate-certainty evidence). Etoricoxib increased the risk of hypertension (RR 1.98; 95% CI 1.14, 3.46; I 2  = 34%; 13 studies, 6560 participants; moderate-certainty evidence); no difference was observed when pooling all coxibs (RR 1.26; 95% CI 0.91, 1.76; I 2  = 26%; 30 studies, 16,173 participants; moderate-certainty evidence).
    UNASSIGNED: Coxibs likely increase the renal adverse effects, including hypertension and edema. Awareness about the renal risks of coxibs should be increased, mainly in high-risk patient.
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  • 文章类型: Case Reports
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  • 文章类型: Editorial
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  • 文章类型: Journal Article
    背景:脓毒性休克与舒张末期容积(EDV)增加和射血分数降低相关,在10天内逆转。非幸存者不会发展EDV增加。机制未知。
    结果:将纯种比格犬(n=33)随机分为接受支气管内金黄色葡萄球菌或生理盐水。超过96小时,进行心脏磁共振成像和超声心动图检查.在66小时获得组织。细菌攻击后0至96小时,与对照组相比,脓毒症动物的左心室壁水肿显著增加(6%),室壁变薄并伴有质量损失(15%).在组织学上,主要发现是非闭塞性微血管损伤伴肌细胞水肿,间质,和内皮细胞。水肿与双室射血分数显著恶化有关,心室-动脉耦合,和周向应变。在脓毒症早期,(0-24小时)EDV下降;非幸存者明显更多(即,更大的舒张功能障碍)。从24到48小时,化脓性动物双心室腔室大小增加;幸存者明显大于基线和非幸存者,其EDV与基线无差异。预加载,后负荷,或心率差异不能解释这些差异变化。
    结论:脓毒症心功能不全与室壁水肿有关。在非幸存者中,在0到24小时,脓毒症诱导更严重的舒张功能障碍,进一步减小腔室大小。败血症幸存者的左心室质量损失与壁变薄可能,在某种程度上,解释EDV从24小时增加到48小时,因为一个潜在的修复过程去除受损的壁组织。败血症性心肌病与非闭塞性微血管损伤最一致,导致水肿,导致可逆性收缩和舒张功能障碍,更严重的舒张功能障碍与EDV降低和死亡相关。
    BACKGROUND: Septic shock is associated with increases in end-diastolic volume (EDV) and decreases in ejection fraction that reverse within 10 days. Nonsurvivors do not develop EDV increases. The mechanism is unknown.
    RESULTS: Purpose-bred beagles (n=33) were randomized to receive intrabronchial Staphylococcus aureus or saline. Over 96 hours, cardiac magnetic resonance imaging and echocardiograms were performed. Tissue was obtained at 66 hours. From 0 to 96 hours after bacterial challenge, septic animals versus controls had significantly increased left ventricular wall edema (6%) and wall thinning with loss of mass (15%). On histology, the major finding was nonocclusive microvascular injury with edema in myocytes, the interstitium, and endothelial cells. Edema was associated with significant worsening of biventricular ejection fractions, ventricular-arterial coupling, and circumferential strain. Early during sepsis, (0-24 hours), the EDV decreased; significantly more in nonsurvivors (ie, greater diastolic dysfunction). From 24 to 48 hours, septic animals\' biventricular chamber sizes increased; in survivors significantly greater than baseline and nonsurvivors, whose EDVs were not different from baseline. Preload, afterload, or heart rate differences did not explain these differential changes.
    CONCLUSIONS: The cardiac dysfunction of sepsis is associated with wall edema. In nonsurvivors, at 0 to 24 hours, sepsis induces a more severe diastolic dysfunction, further decreasing chamber size. The loss of left ventricular mass with wall thinning in septic survivors may, in part, explain the EDV increases from 24 to 48 hours because of a potentially reparative process removing damaged wall tissue. Septic cardiomyopathy is most consistent with a nonocclusive microvascular injury resulting in edema causing reversible systolic and diastolic dysfunction with more severe diastolic dysfunction being associated with a decreased EDV and death.
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  • 文章类型: Journal Article
    背景:麻风树属(大齿科)的物种在传统医学中不加区别地用于治疗涉及有毒动物的事故。麻疯树.,俗称“pinhão-de-seda”,\“在巴西东北部的半干旱地区发现。它被广泛用作蠕虫,去净化,泻药,和抗蛇毒血清.
    目的:获得麻疯树(Jmla)乳胶的植物化学特征,并评估其急性经口毒性和对蝎子TityusStigmurus(TstiV)毒液的抑制作用。
    方法:通过茎中的原位切口获得J.mutabilis(Jmla)的乳胶,并使用HPLC-ESI-QToF-MS进行表征。在小鼠中研究急性口服毒性。通过电泳获得了T.stigmurus毒液的蛋白质谱。使用SDS-PAGE评估乳胶与毒液成分(TstiV)相互作用的能力,UV-VIS扫描光谱,以及纤溶和透明质酸酶活性的中和。此外,在体内评估乳胶抑制由毒液引起的局部致水肿和伤害性作用的能力。
    结果:乳胶的植物化学特征显示存在75种化合物,包括环状肽,糖苷,酚类化合物,生物碱,香豆素,和萜类化合物,在其他人中。在2000mg/kg(p.o.)的剂量下没有观察到急性毒性的迹象。胶乳与TstiV的蛋白质谱相互作用,100%抑制毒液的纤溶和透明质酸酶活性。此外,乳胶能够减轻局部毒害效应,与阴性对照组相比,伤害感受减少高达56.5%,水肿减少高达50%。
    结论:麻疯树的乳胶表现出多样化的植物化学成分,含有许多种类的代谢物。它在小鼠中不存在急性毒性作用,并且具有在体外抑制Tityusstigmurus毒的酶促作用的能力。此外,它减少体内的伤害性感受和水肿。这些发现证实了有关该植物抗蛇毒血清活性的流行报道,并表明该乳胶具有治疗蝎子病的潜力。
    BACKGROUND: Species of the Jatropha genus (Euphorbiaceae) are used indiscriminately in traditional medicine to treat accidents involving venomous animals. Jatropha mutabilis Baill., popularly known as \"pinhão-de-seda,\" is found in the semi-arid region of Northeastern Brazil. It is widely used as a vermifuge, depurative, laxative, and antivenom.
    OBJECTIVE: Obtaining the phytochemical profile of the latex of Jatropha mutabilis (JmLa) and evaluate its acute oral toxicity and inhibitory effects against the venom of the scorpion Tityus stigmurus (TstiV).
    METHODS: The latex of J. mutabilis (JmLa) was obtained through in situ incisions in the stem and characterized using HPLC-ESI-QToF-MS. Acute oral toxicity was investigated in mice. The protein profile of T. stigmurus venom was obtained by electrophoresis. The ability of latex to interact with venom components (TstiV) was assessed using SDS-PAGE, UV-Vis scanning spectrum, and the neutralization of fibrinogenolytic and hyaluronidase activities. Additionally, the latex was evaluated in vivo for its ability to inhibit local edematogenic and nociceptive effects induced by the venom.
    RESULTS: The phytochemical profile of the latex revealed the presence of 75 compounds, including cyclic peptides, glycosides, phenolic compounds, alkaloids, coumarins, and terpenoids, among others. No signs of acute toxicity were observed at a dose of 2000 mg/kg (p.o.). The latex interacted with the protein profile of TstiV, inhibiting the venom\'s fibrinogenolytic and hyaluronidase activities by 100%. Additionally, the latex was able to mitigate local envenomation effects, reducing nociception by up to 56.5% and edema by up to 50% compared to the negative control group.
    CONCLUSIONS: The latex of Jatropha mutabilis exhibits a diverse phytochemical composition, containing numerous classes of metabolites. It does not present acute toxic effects in mice and has the ability to inhibit the enzymatic effects of Tityus stigmurus venom in vitro. Additionally, it reduces nociception and edema in vivo. These findings corroborate popular reports regarding the antivenom activity of this plant and indicate that the latex has potential for treating scorpionism.
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  • 文章类型: Journal Article
    背景:TAFRO综合征是一种全身性炎症性疾病,表现为血小板减少症(t),anasarca(a),发烧(f),网织蛋白骨髓纤维化/肾功能不全(r),和器官肿大(o),并被认为是特发性多中心Castleman病(iMCD)的独特临床亚型。这种综合征引起的临床表现类似于结缔组织疾病或自身免疫性疾病。
    方法:一名中国年轻女性,最初表现为关节痛,雷诺现象,全身性水肿,抗小核核糖核蛋白颗粒抗体阳性被诊断为混合性结缔组织病。肾活检显示血栓性微血管病变。骨髓涂片显示骨髓增生,活检提示怀疑轻链限制性表达,巨核细胞增殖,和中度至重度骨髓纤维化。进行了淋巴结活检,组织病理学发现与混合型Castleman病的亚型一致。常规化疗后临床症状缓解。
    方法:经过以上检查结果和临床表现,最终诊断为TAFRO综合征.
    方法:她开始用硼替佐米化疗,环磷酰胺,还有地塞米松.
    结果:化疗后,血小板减少症等症状,血尿和蛋白尿消失,淋巴结肿大和VEGF水平下降,骨髓纤维化缓解。
    结论:我们的病例说明了第一例混合性结缔组织病和iMCD-TAFRO综合征的共同特征。细胞因子可能在iMCD-TAFRO综合征和全身性自身免疫性疾病的共同致病性中起作用。直接针对炎症因子如糖皮质激素或化疗的治疗具有重要的治疗意义。
    BACKGROUND: TAFRO syndrome is a systemic inflammatory disorder, manifesting as thrombocytopenia (t), anasarca (a), fever (f), reticulin myelofibrosis/renal insufficiency (r), and organomegaly (o), and considered as a unique clinical subtype of idiopathic multicentric Castleman disease (iMCD). Such syndrome gave rise to a clinical picture similar to that of either a connective tissue disease or an autoimmune disease.
    METHODS: A Chinese young female initially presenting with arthralgia, Raynaud phenomenon, generalized edema, and a positive anti-small nuclear ribonucleoprotein particle antibody was diagnosed as mixed connective tissue disease. The kidney biopsy showed thrombotic microangiopathy. Bone marrow smear showed bone marrow hyperplasia and biopsy revealed suspected light chain restricted expression, megakaryocyte proliferation, and moderate to severe bone marrow fibrosis. A lymph node biopsy was conducted and the histopathological findings were consistent with the subtype of mixed Castleman disease. The clinical symptoms were relieved after regular chemotherapy.
    METHODS: After above examination results and clinical manifestations, the final diagnoses was TAFRO syndrome.
    METHODS: The she was started on chemotherapy with bortezomib, cyclophosphamide, and dexamethasone.
    RESULTS: After chemotherapy, symptoms such as thrombocytopenia, hematuria and proteinuria disappeared, lymphadenopathy and VEGF level decreased, and bone marrow fibrosis relieved.
    CONCLUSIONS: Our case illustrated the first cases of shared characteristics of mixed connective tissue disease and iMCD-TAFRO syndrome. Cytokines may play a role in the shared pathogenicity of the iMCD-TAFRO syndrome and systemic autoimmune diseases. Therapy directly against inflammatory factors such as corticosteroids or chemotherapy have an important therapeutic implication.
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