TC

TC
  • 文章类型: Journal Article
    甲状腺癌(TC)是全球最常见的内分泌恶性肿瘤之一。越来越多的证据表明,维生素D(VD)在治疗TC方面具有潜在的益处。然而,关于VD在TC中的作用靶点和分子机制的证据仍然有限。在这项研究中,我们进行了网络药理学,分子对接,和实验评估来探索目标基因,生物学功能,以及参与这一过程的信号通路。网络分析揭示了77个抗TC的VD潜在靶基因,并鉴定了四个枢纽靶基因:ESR1、KIT、CCND1和PGR。此外,我们确定了涉及这些潜在靶基因的生物过程(BP)和信号通路,然后通过分子对接确定hub靶标与VD之间可能的相互作用。最后,通过体外实验,我们发现VD能有效抑制TC细胞的增殖并下调ESR1基因的表达。总之,VD对TC的影响涉及多个生物学靶标,BP,和信号通路。这些发现为VD在TC治疗中的应用提供了科学依据。
    Thyroid cancer (TC) is one of the most common endocrine malignancies worldwide. Increasing evidence suggests that vitamin D (VD) has potential benefits in the treatment of TC. However, evidence regarding the targets and molecular mechanisms of VD in TC remains limited. In this study, we conducted network pharmacology, molecular docking, and experimental evaluation to explore the target genes, biological functions, and signaling pathways involved in this process. Network analysis revealed 77 potential target genes of VD against TC, and four hub target genes were identified: ESR1, KIT, CCND1, and PGR. Furthermore, we identified the biological processes (BP) and signaling pathways involving these potential target genes, and then determined the possible interaction between the hub targets and VD through molecular docking. Finally, through in vitro experiments, we found that VD effectively inhibits the proliferation of TC cells and downregulates the expression of the ESR1 gene. In conclusion, the effects of VD against TC involve multiple biological targets, BP, and signaling pathways. These findings provide scientific evidence for the application of VD in the treatment of TC.
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  • 文章类型: Journal Article
    代谢相关脂肪性肝病(MAFLD)是全球最常见的肝脏疾病之一;其发病机制和治疗方法尚未完善。NOD样受体热蛋白结构域相关蛋白3(NLRP3)是MAFLD的一个有希望的治疗靶点。Diosgenin(DG)是一种天然化合物,在传统中草药中被发现,具有药理作用,如抗炎,抗氧化剂,保肝,和降血脂活动。在这项研究中,我们在体外和体内研究了DG对MAFLD的影响和分子机制。我们通过给予高脂饮食(HFD)建立了大鼠模型。我们还通过用游离脂肪酸(FFA)处理HepG2细胞产生了体外MAFLD模型。结果表明,DG在体外和体内模型中均可减轻脂质积累和肝损伤。DG下调NLRP3,凋亡相关斑点样蛋白(ASC)的表达,半胱氨酰天冬氨酸特异性蛋白酶-1(caspase-1),gasderminD(GSDMD),GSDMD-n,白细胞介素-1β(IL-1β)。此外,我们在体外沉默和过表达NLRP3,以确定DG对抗MAFLD的影响。沉默NLRP3可增强DG对MAFLD的治疗作用,而NLRP3过表达逆转了其有益作用。一起来看,结果表明,DG对通过肝脏NLRP3炎性体依赖性信号通路减弱MAFLD具有良好的作用。DG代表用于MAFLD治疗的天然NLRP3抑制剂。
    Metabolic-associated fatty liver disease (MAFLD) is one of the most common liver diseases worldwide; however, its pathogenesis and treatment methods have not been perfected. NOD-like receptor thermal protein domain-associated protein 3 (NLRP3) is a promising therapeutic target for MAFLD. Diosgenin (DG) is a natural compound that was identified in a traditional Chinese herbal medicine, which has pharmacological effects, such as anti-inflammatory, antioxidant, hepatoprotective, and hypolipidemic activities. In this study, we examined the effects and molecular mechanisms of DG on MAFLD in vitro and in vivo. We established a rat model by administering a high-fat diet (HFD). We also generated an in vitro MAFLD model by treating HepG2 cells with free fatty acids (FFAs). The results indicated that DG attenuated lipid accumulation and liver injury in both in vitro and in vivo models. DG downregulated the expression of NLRP3, apoptosis-associated speckle-like protein (ASC), cysteinyl aspartate specific proteinase-1 (caspase-1), gasdermin D (GSDMD), GSDMD-n, and interleukin-1β (IL-1β). In addition, we silenced and overexpressed NLRP3 in vitro to determine the effects of DG on antiMAFLD. Silencing NLRP3 enhanced the effect of DG on the treatment of MAFLD, whereas NLRP3 overexpression reversed its beneficial effects. Taken together, the results show that DG has a favorable effect on attenuating MAFLD through the hepatic NLRP3 inflammasome-dependent signaling pathway. DG represents a natural NLRP3 inhibitor for the MAFLD treatment.
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  • 文章类型: Journal Article
    胸腺上皮肿瘤(TET)很少见,主要症状不明显,直到肿瘤发展到相对较大的尺寸并压迫周围器官。由于它的生长是积极的,并转移到远处的器官,找到新的有效疗法很重要。Lenvatinib,血管内皮生长因子受体(VEGFR)抑制剂,已被批准为胸腺癌(TC)的药物疗法;然而,尽管它是一种分子靶向治疗,没有明显的治疗效果预测因子。本研究旨在评估临床病理因素与VEGFR蛋白表达之间的关系。这与肿瘤侵袭性和VEGFR抑制剂的疗效有关。在144例接受手术切除的TET患者中评估了VEGFR-2蛋白的表达。本研究评估了VEGFR-2蛋白的表达是否与TET分类和病理分期有关。无进展生存期和总生存期(OS)。VEGFR-2蛋白阳性94例(65.2%)。VEGFR-2在更侵袭性的B3型胸腺瘤和TC中的表达高于A型(88.5%),AB,B1和B2胸腺瘤(60.2%)。总人口的5年OS率为53.1%。VEGFR-2染色评分阴性患者的5年OS率(66.5%)明显长于VEGFR-2染色评分阳性患者的5年OS率(42.5%,P=0.000078)。此外,在多变量分析中,病理分期是唯一与OS显著相关的因素.本研究的结果表明,VEGF抑制剂治疗的适应症可能扩展到B3型胸腺瘤。
    Thymic epithelial tumors (TETs) are rare and the major symptoms are not obvious until the tumor progresses to a relatively large size and compresses the surrounding organs. As its growth is aggressive and it metastasizes to distant organs, it is important to find novel effective therapies. Lenvatinib, a vascular endothelial growth factor receptor (VEGFR) inhibitor, is approved as a drug therapy for thymic carcinoma (TC); however, although it is a molecular targeted therapy, there are no obvious predictors of therapeutic efficacy. The present study aimed to assess the association between clinicopathological factors and the protein expression of VEGFR, which is associated with tumor aggressiveness and the efficacy of VEGFR inhibitors. The VEGFR-2 protein expression was evaluated in 144 patients with TETs who underwent surgical resection. The present study assessed whether the expression of VEGFR-2 protein was associated with TET classification and pathological stage, progression-free survival and overall survival (OS). A total of 94 cases (65.2%) were positive for VEGFR-2 protein. The expression of VEGFR-2 was higher in the more aggressive type B3 thymoma and TC (88.5%) than in types A, AB, B1 and B2 thymoma (60.2%). The 5-year OS rate for the overall population was 53.1%. The 5-year OS rates of patients with negative VEGFR-2 staining score values (66.5%) were significantly longer than in patients with positive VEGFR-2 staining score values (42.5%; P=0.000078). Furthermore, the pathological stage was the only factor significantly associated with OS in multivariate analysis. The results of the present study suggest the possibility that the indications for VEGF inhibitor therapy could be extended to type B3 thymoma.
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  • 文章类型: Journal Article
    背景:先前的研究表明,血脂异常可能是肩袖综合征(RCS)的危险因素,降脂药物可能有助于其治疗,虽然结论尚未确定。孟德尔随机化是一种统计方法,用于探索暴露因素与疾病之间的因果关系。它克服了传统观察研究中固有的混杂问题,从而提供更可靠的因果推论。我们采用这种方法来研究高脂血症是否是肩袖综合征的危险因素,以及降脂药物是否可以有效治疗这种情况。方法:与脂质性状低密度脂蛋白胆固醇(LDL-C)相关的遗传变异,甘油三酯(TG),和总胆固醇(TC)是从英国生物库和全球脂质遗传学联盟(GLGC)获得的。肩袖综合征的遗传变异数据来自FinnGen,包括24,061名患者和275,212名对照。下一步,我们进行了双样本孟德尔随机化分析,以确定脂质特征是否与肩袖综合征风险相关.此外,我们对10个与肩袖综合征相关的药物靶点进行了孟德尔随机化(MR)分析.对于显示出显著结果的药物靶标,采用基于汇总数据的孟德尔随机化(SMR)和共定位技术进行进一步分析.我们进行了中介分析,以确定HMG-CoA还原酶(HMGCR)和RCS之间的潜在介质。结果:这些脂质特征与肩袖综合征之间没有因果关系。然而,HMGCR抑制与肩袖疾病风险降低相关(OR=0.68,[95%CI,0.56-0.83],p=1.510×10-4)。此外,肌肉组织中HMGCR的表达增强也与肩袖综合征的风险降低有关(OR=0.88,[95%CI,0.76-0.99],p=0.03)。体重指数(BMI)介导了HMGCR对RCS总效应的22.97%。结论:本研究不支持低密度LDL-C,TG,和TC是肩袖综合征的危险因素。HMGCR代表预防和治疗肩袖综合征的潜在药物靶标。他汀类药物对肩袖综合征的保护作用可能与其降脂特性无关。
    Background: Previous research has suggested that dyslipidemia may be a risk factor for rotator cuff syndrome (RCS), and lipid-lowering drugs may aid in its treatment, though conclusions have not been definitive. Mendelian randomization is a statistical method that explores the causal relationships between exposure factors and diseases. It overcomes the confounding issues inherent in traditional observational studies, thereby providing more reliable causal inferences. We employed this method to investigate whether hyperlipidemia is a risk factor for rotator cuff syndrome and whether lipid-lowering drugs can effectively treat this condition. Methods: Genetic variations linked to lipid traits low-density lipoprotein cholesterol (LDL-C), triglyceride (TG), and total cholesterol (TC) were acquired from the UK Biobank and the Global Lipids Genetics Consortium (GLGC). Data on genetic variation in rotator cuff syndrome were obtained from FinnGen, including 24,061 patients and 275,212 controls. In the next step, we carried out two-sample Mendelian randomization analyses to determine whether lipid traits correlate with rotator cuff syndrome risk. Additionally, we performed drug-target Mendelian randomization (MR) analyses on 10 drug targets related to rotator cuff syndrome. For the drug targets that showed significant results, further analysis was done using Summary-data-based Mendelian Randomization (SMR) and colocalization techniques. We performed a mediation analysis to identify potential mediators between HMG-CoA reductase (HMGCR) and RCS. Results: No causative link was established between these lipid traits and rotator cuff syndrome. However, a significant association has been identified where HMGCR inhibition corresponds to a reduced risk of rotator cuff disease (OR = 0.68, [95% CI, 0.56-0.83], p = 1.510 × 10-4). Additionally, enhanced expression of HMGCR in muscle tissues is also linked to a decreased risk of rotator cuff syndrome (OR = 0.88, [95% CI, 0.76-0.99], p = 0.03). Body mass index (BMI) mediated 22.97% of the total effect of HMGCR on RCS. Conclusion: This study does not support low-density LDL-C, TG, and TC as risk factors for rotator cuff syndrome. HMGCR represents a potential pharmaceutical target for preventing and treating rotator cuff syndrome. The protective action of statins on the rotator cuff syndrome might not be associated with their lipid-lowering properties.
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  • 文章类型: Journal Article
    水热方法用于设计和构建锚定g-C3N4(gCN)纳米片异质结构的SnWO4(SW)纳米片。形态学,光学特性,并对相位识别进行了调查。通过物理化学特性验证了异质结构建筑师的构造和成功的界面相互作用。在可见光存在下将测试材料用作光催化剂以分解抗生素四环素(TC)和有机罗丹明B(RhB)。优化的15mggCNSW-7.5在72和48分钟内证明了TC(97%)和RhB(98%)污染物的最佳光催化降解效率,分别,在较高的速率常数0.0409和0.0772min-1。gCN和SW之间的接口触点,成功地增强了光催化剂中的电荷转移并限制了复合率,负责gCNSW异质结构光催化剂的增强性能。此外,gCNSW异质结构光催化剂在四个连续的测试周期中表现出卓越的稳定性和可重用性,突出其耐用和可靠的功能。通过清除剂研究表明,超氧自由基和空穴是污染物降解的关键参与者。借助UV-visDRS分析,将异质结构中的电荷转移机理确定为Z方案模式。由于其独特的结构特点,和电荷载流子的有效分离,Z-schemegCNSW-7.5异质结构光催化剂作为降解污染物的非常有效的催化剂具有重要的前景。这将其定位为在各种环境应用中具有相当大潜力的预期材料。
    The hydrothermal approach was used in the design and construction of the SnWO4 (SW) nanoplates anchored g-C3N4 (gCN) nanosheet heterostructures. Morphology, optical characteristics, and phase identification were investigated. The heterostructure architect construction and successful interface interaction were validated by the physicochemical characteristics. The test materials were used as a photocatalyst in the presence of visible light to break down the antibiotic tetracycline (TC) and the organic Rhodamine B (RhB). The best photocatalytic degradation efficiency of TC (97%) and RhB (98%) pollutants was demonstrated by the optimized 15 mg of gCNSW-7.5 in 72 and 48 min, respectively, at higher rate constants of 0.0409 and 0.0772 min-1. The interface contact between gCN and SW, which successfully enhanced charge transfer and restricted recombination rate in the photocatalyst, is responsible for the enhanced performance of the gCNSW heterostructure photocatalyst. In addition, the gCNSW heterostructure photocatalyst demonstrated exceptional stability and reusability over the course of four successive testing cycles, highlighting its durable and dependable function. Superoxide radicals and holes were shown to be key players in the degradation of contaminants through scavenger studies. The charge transfer mechanism in the heterostructure is identified as Z-scheme mode with the help of UV-vis DRS analysis. Attributed to its unique structural features, and effective separation of charge carriers, the Z-scheme gCNSW-7.5 heterostructure photocatalyst exhibits significant promise as an exceptionally efficient catalyst for the degradation of pollutants. This positions it as a prospective material with considerable potential across various environmental applications.
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  • 文章类型: Journal Article
    背景:我们探讨了miR-28-5p在腹主动脉瘤(AAA)患者腔内腹主动脉瘤修复术(EVAR)前后的临床意义。
    方法:受试者包括接受EVAR的AAA患者和非AAA患者,在合并症/Framingham风险评分方面与AAA患者无统计学差异。在EVAR手术当天的早晨和EVAR后3个月的早晨收集空腹肘静脉血(4mL)。前/后EVAR血清miR-28-5p表达,AAA最大直径变更,EVAR前/后CD3+/CD4+/CD8+/TC/TG,并研究miR-28-5p与AAA最大直径之间的相关性。miR-28-5p对EVAR后死亡率的预测,预后,使用受试者工作特征曲线(ROC)/Kaplan-Meier曲线/单变量和多变量Cox回归分析EVAR后死亡的独立因素。ROC曲线的截断值为术后miR-28-5p的截断值,将患者分为miR-28-5p高表达和低表达组。随访48个月后比较两组患者的生存或死亡情况。
    结果:AAA患者的血清miR-28-5p水平在EVAR后下降。AAA患者EVAR前后CD3+/CD4+/CD8+/TC/TG水平存在显著差异。miR-28-5p低表达组表现出更高的CD3+/CD4+和更低的CD8+/TC/TG水平。我们观察到EVAR后miR-28-5p与AAA最大直径之间以及EVAR前/后miR-28-5p倍数变化与AAA最大直径变化之间呈正相关。术后miR-28-5p对术后死亡具有良好的预测价值。高血压,弗雷明汉风险评分,TC,TG,miR-28-5p是EVAR后死亡的独立影响因素。
    结论:EVAR降低了AAA患者血清miR-28-5p的表达。术后miR-28-5p水平和术前/术后折叠变化水平与AAA直径呈正相关。
    BACKGROUND: We explored the clinical significance of miR-28-5p pre- and post-endovascular abdominal aortic aneurysm repair (EVAR) in abdominal aortic aneurysm (AAA) patients.
    METHODS: Subjects included AAA patients receiving EVAR and non-AAA people without statistical differences from AAA patient in comorbidities/Framingham risk score. Fasting elbow venous blood (4 mL) was collected in the morning of the day of EVAR surgery and in the morning of 3 months post-EVAR. Pre-/post-EVAR serum miR-28-5p expression, AAA maximum diameter alterations, CD3+/CD4+/CD8+/TC/TG pre-/post-EVAR, and the correlations between miR-28-5p and AAA maximum diameter were investigated. Prediction of miR-28-5p on post-EVAR mortality, prognosis, and independent factors of post-EVAR death were analyzed using receiver operating characteristic curve (ROC)/Kaplan-Meier curve/univariable and multivariable Cox regression. According to the cut-off value of ROC curve for postoperative miR-28-5p was the cut-off value, and the patients were classified into the miR-28-5p high- and low-expression groups. The survival or death of both groups were compared after 48-month follow-up.
    RESULTS: Serum miR-28-5p levels in AAA patients dropped post-EVAR. AAA patients showed notable differences in CD3+/CD4+/CD8+/TC/TG levels pre-/post-EVAR. The miR-28-5p low-expression group exhibited higher CD3+/CD4+ and lower CD8+/TC/TG levels. We observed a positive correlation between post-EVAR miR-28-5p and AAA maximum diameter and between the pre-/post-EVAR miR-28-5p fold change and the AAA maximum diameter change. Postoperative miR-28-5p demonstrated good predictive value for postoperative death. Hypertension, Framingham risk score, TC, TG, and miR-28-5p were independent influencing factors of post-EVAR death.
    CONCLUSIONS: EVAR decreased serum miR-28-5p expression in AAA patients. Post-operative miR-28-5p level and pre-/post-operative fold change level are positively-correlated with AAA diameter.
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  • 文章类型: Journal Article
    氯甲基苯乙烯树脂可以进行特定的化学修饰,是处理废水中难降解物质的优良吸附材料。在这项研究中,氯甲基苯乙烯树脂将用作载体,和聚苯乙烯氯甲基树脂(PS-Cl)通过氨基改性转化为PS-NH2。采用新型制备技术在PS-NH2表面诱导了钴基金属有机骨架(CoMOF)的自组装。制备的具有核壳结构的PS-NH2@CoMOF自组装催化剂降解目标污染物的性能,四环素(TC),进行了评估。该催化剂有效诱导H2O2快速生成OH自由基,对20mg/LTC溶液的降解率高达88.3%,高度稳定,适应水环境。用电子顺磁共振和高效液相色谱-质谱联用技术检测了催化降解过程中的自由基和中间体,并分析了可能的催化降解途径。通过密度泛函理论计算,深入研究了H2O2在不同催化剂存在下的催化解离行为,并与类似的金属有机骨架材料进行了比较。结果证明了PS-NH2@CoMOF催化剂的优异性能。最后,用流动柱实验模型评估了催化剂在实际工程应用中的潜力,结果令人满意。因此,使用该催化剂降解TC具有很大的潜力。
    Chloromethyl styrene resin can undergo specific chemical modifications and is an excellent adsorbent material for treating difficult-to-degrade substances in wastewater. In this study, chloromethyl styrene resin will be used as a carrier, and polystyrene chloromethyl resin (PS-Cl) was converted into PS-NH2 by amino modification. The self-assembly of cobalt-based metal-organic framework (CoMOF) was induced on the surface of PS-NH2 by using a novel preparation technique. The performance of the prepared PS-NH2@CoMOF self-assembled catalysts with core-shell-like structures in degrading the target pollutant, tetracycline (TC), was evaluated. The catalysts effectively induced rapid OH radical production from H2O2, had a degradation rate of as high as 88.3 % for 20 mg/L TC solution, and were highly stable and adaptable to aqueous environments. Free radicals and intermediates in the catalytic degradation process were detected by electron paramagnetic resonance and high-performance liquid chromatography mass spectrometry, and possible catalytic degradation pathways were analyzed. The catalytic dissociation behavior of H2O2 in the presence of different catalysts was studied in depth and compared with that of similar metal-organic framework materials through density-functional theory calculations. Results demonstrated the excellent performance of the PS-NH2@CoMOF catalysts. Finally, the catalysts\' potential for use in practical engineering applications was evaluated with a flow column experimental model, and the results were more than satisfactory. Therefore, the use of the catalysts to degrade TC has great potential.
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  • 文章类型: Journal Article
    甲状腺癌(TC)是一种普遍存在且越来越常见的恶性肿瘤。在大多数情况下,TC进展缓慢,几乎是良性的。然而,难治性TC的治疗仍然存在挑战,对传统管理没有反应或容易复发或转移。因此,对于预后较差的TC患者,迫切需要新的治疗方案.
    从癌症基因组图谱数据库下载的来自TC的RNA的表达谱数据鉴定差异表达的RNA。利用多个数据库来研究RNA之间的调控关系。随后,建立了竞争性内源性RNA(ceRNA)网络,以阐明负责TC临床预后的ceRNA轴.了解ceRNA轴在TC中的潜在机制,位置分析,功能富集分析,并进行免疫相关分析。
    构建了TC的ceRNA网络,并成功鉴定了与TC预后相关的TIMP3/hsa-miR-181b-5p/PAX8-AS1ceRNA轴。我们的结果表明,轴可能通过调节肿瘤免疫来影响TC的预后。
    我们的发现提供了证据,表明TIMP3/hsa-miR-181b-5p/PAX8-AS1轴与TC的预后显着相关。该轴中涉及的分子可以作为TC治疗的新型治疗方法。
    UNASSIGNED: Thyroid cancer (TC) is a prevalent and increasingly common malignant tumor. In most cases, TC progresses slowly and runs a virtually benign course. However, challenges remain with the treatment of refractory TC, which does not respond to traditional management or is subject to relapse or metastasis. Therefore, new therapeutic regimens for TC patients with poor outcomes are urgently needed.
    UNASSIGNED: The differentially expressed RNAs were identified from the expression profile data of RNA from TC downloaded from The Cancer Genome Atlas database. Multiple databases were utilized to investigate the regulatory relationship among RNAs. Subsequently, a competitive endogenous RNA (ceRNA) network was established to elucidate the ceRNA axis that is responsible for the clinical prognosis of TC. To understand the potential mechanism of ceRNA axis in TC, location analysis, functional enrichment analysis, and immune-related analysis were conducted.
    UNASSIGNED: A ceRNA network of TC was constructed, and the TIMP3/hsa-miR-181b-5p/PAX8-AS1 ceRNA axis associated with the prognosis of TC was successfully identified. Our results showed that the axis might influence the prognosis of TC through its regulation of regulating tumor immunity.
    UNASSIGNED: Our findings provide evidence that TIMP3/hsa-miR-181b-5p/PAX8-AS1 axis is significantly related to the prognosis of TC. The molecules involved in this axis may serve as novel therapeutic approaches for TC treatment.
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  • 文章类型: Journal Article
    目的探讨暂时压迫(TC)和持续压迫(SC)下髓核细胞自噬激活和凋亡的启动,以确定理想的椎间盘退变研究方法。使用了各种技术:射线照相术(X射线),磁共振成像(MRI),透射电子显微镜(TEM),H&E染色,马森三色染色,免疫组织化学(IHC)(LC3,beclin-1和裂解的caspase-3),和实时聚合酶链反应(RT-qPCR)进行自噬相关(beclin-1,LC3和P62)和凋亡相关(caspase-3和PARP)基因表达分析。X线和MRI显示不同程度的椎间盘退变,两组从中度到重度不等。严重程度与压缩持续时间直接相关,SC导致特别严重的中枢NP细胞变性。令人惊讶的是,TC也引起了类似的,虽然不那么严重,变性。6周后发现LC3和beclin-1的表达升高,但12周后明显下降。两组中的中央NP细胞均表现出与SC持续时间呈正相关的裂解的caspase-3表达增加。与SC相比,TC显示更少的凋亡标志物。两组LC3,beclin-1和P62mRNA表达在6周后达到峰值,在12周后下降。裂解的caspase-3和PARP表达在SC,与更长的压缩持续时间呈正相关,而TC显示凋亡基因表达水平较低。此外,TEM结果揭示了压缩2周后自噬降解过程的不同事件。TC可能是研究早期触发自噬介导的变性的理想选择,而SC可能是研究晚期或较慢触发的凋亡介导的变性的理想选择。
    The purpose of this study was to investigate the initiation of autophagy activation and apoptosis in nucleus pulposus cells under temporary compression (TC) and sustained compression (SC) to identify ideal research approaches in intervertebral disc degeneration. Various techniques were used: radiography (X-ray), magnetic resonance imaging (MRI), transmission electron microscope (TEM), H&E staining, Masson\'s trichrome staining, immunohistochemistry (IHC) (LC3, beclin-1, and cleaved caspase-3), and real-time polymerase chain reaction (RT-qPCR) for autophagy-related (beclin-1, LC3, and P62) and apoptosis-related (caspase-3 and PARP) gene expression analysis. X-ray and MRI revealed varying degrees of disc degeneration, ranging from moderate to severe in both groups. The severity was directly linked to compression duration, with SC resulting in notably severe central NP cell degeneration. Surprisingly, TC also caused similar, though less severe, degeneration. Elevated expression of LC3 and beclin-1 was identified after 6 weeks, but it notably declined after 12 weeks. Central NP cells in both groups exhibited increased expression of cleaved caspase-3 that was positively correlated with the duration of SC. TC showed fewer apoptotic markers compared to SC. LC3, beclin-1, and P62 mRNA expression peaked after 6 weeks and declined after 12 weeks in both groups. Cleaved caspase-3 and PARP expression peaked in SC, positively correlating with longer compression duration, while TC showed lower levels of apoptosis gene expression. Furthermore, TEM results revealed different events of the autophagic degradation process after 2 weeks of compression. TCmay be ideal for studying early triggered autophagy-mediated degeneration, while SC may be ideal for studying late or slower-triggered apoptosis-mediated degeneration.
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  • 文章类型: Meta-Analysis
    目的:肌肉减少症是一种以老年人肌肉损失为特征的病理改变。据报道,血脂异常与肌少症的关系存在争议。因此,本荟萃分析旨在探讨少肌症与血脂异常之间的关系.
    方法:我们搜索了Cochrane库,WebofScience,PubMed,中国国家知识基础设施(CNKI),万芳,中国科技期刊数据库(VIP数据库)用于病例对照研究,以提取肌肉减少症和血脂异常之间的比值比(OR)和TC的MD(平均差)数据,LDL-C,HDL-C,TG,TG/HDL-C在少肌症和非少肌症之间。JBI(JoannaBriggs)指南用于评估质量。使用Excel2021、ReviewManager5.3和Stata16.0进行统计分析。
    结果:20项研究纳入荟萃分析,其中19个被评价为良好的质量。肌少症与血脂异常关系的总OR为1.47,TC的MD值,LDL-C,HDL-C,TG,TG/HDL-C分别为1.10、1.95、1.27、30.13和0.16。在女性中,与非肉鸡相比,TC的MD,LDL-C,HDL-C,肌肉减少症的TG分别为-1.67、2.21、1.02、-3.18。在男性中,TC的MD,LDL-C,HDL-C,肌肉减少症和非肌肉减少症之间的TG分别为-0.51、1.41、5.77、-0.67。非中国地区肌肉减少症与血脂异常的OR为4.38,中国为0.9。在组(>60)中,肌少症和非肌少症的TCMD为2.63,而该组(20-60)为1.54。
    结论:老年人血脂异常与肌肉减少有关,受到性的影响,地区和年龄。
    OBJECTIVE: Sarcopenia is a pathological change characterized by muscle loss in older people. According to the reports, there is controversy on the relationship between dyslipidemia and sarcopenia. Therefore, this meta-analysis aimed to explore the association between sarcopenia and dyslipidemia.
    METHODS: We searched the Cochrane Library, Web of Science, PubMed, China National Knowledge Infrastructure (CNKI), Wan Fang, China Science and Technology Journal Database (VIP Database) for case‒control studies to extract data on the odds ratio (OR) between sarcopenia and dyslipidemia and the MD(mean difference) of TC, LDL-C, HDL-C, TG, and TG/HDL-C between sarcopenia and nonsarcopenia. The JBI(Joanna Briggs) guidelines were used to evaluate the quality. Excel 2021, Review Manager 5.3 and Stata 16.0 were used for the statistical analysis.
    RESULTS: Twenty studies were included in the meta-analysis, 19 of which were evaluated as good quality. The overall OR of the relationship between sarcopenia and dyslipidemia was 1.47, and the MD values of TC, LDL-C, HDL-C, TG, and TG/HDL-C were 1.10, 1.95, 1.27, 30.13, and 0.16 respectively. In female, compared with the non-sarcopnia, the MD of TC, LDL-C, HDL-C, TG of sarcopenia were - 1.67,2.21,1.02,-3.18 respectively. In male, the MD of TC, LDL-C, HDL-C, TG between sarcopenia and non-sarcopenia were - 0.51, 1.41, 5.77, -0.67. The OR between sarcopenia and dyslipidemia of the non-China region was 4.38, and it was 0.9 in China. In the group(> 60), MD of TC between sarcopenia and non-sarcopenia was 2.63, while it was 1.54 in the group(20-60).
    CONCLUSIONS: Dyslipidemia was associated with sarcopenia in the elderly, which was affected by sex, region and age.
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