2型糖尿病肺癌患者生存期影响因素分析

目的探讨2型糖尿病肺癌患者生存期及其影响因素。方法选取2014年至2016年在我院诊断的T2DM合并肺癌的患者43为观察组,同期诊断单纯肺癌不合并T2DM的患者40为对照组,查阅患者的一般资料,调查所有可能影响患者预后的危险因素,如年龄、性别、肺癌TNM分期、病理分型、远处转移、合并症、吸烟、治疗情况、血糖及控制血糖的方法等,随访患者的生存情况。结果观察组PFS时间为7.8±5.1月,对照组PFS时间为11.1±6.1月,观察组PFS时间明显短于对照组;观察组OS时间为15.0±7.5月,对照组OS时间为18.5±8.8月,观察组OS时间明显短于对照组。Cox回归分析发现,患者生存时间与是否合并糖尿病、远处转移、病理分期有关,差异具有统计学意义(P<0.05),而年龄、性别、是否吸烟、病理分型等对总生存期的影响较差,差异无统计学意义((P>0.05),Kaplan-Meier分析结果显示:合并T2DM的肺癌患者PFS明显低于单纯未合并T2DM的肺癌患者,远处转移的的肺癌患者PFS明显低于无远处转移的肺癌患者,IV期的肺癌患者低于II期的肺癌患者,II期肺癌患者低于I期的肺癌患者。结论T2DM合并肺癌无论是无进展生存期还是总生存期均低于单纯肺癌不合并T2DM的患者,T2DM合并肺癌患者除了传统的因素如远处转移、肿瘤TNM分期等影响肺癌患者的预后外,T2DM也是影响肺癌患者预后的独立危险因素。     

血清miRNA155、孕激素表达水平与乳腺癌发生的意义

目的探讨血清miRNA155、孕激素表达水平与乳腺癌发生的相关性。方法选择本院2015年1月日至2017年12月31日期间接受手术切除治疗的病理确诊的乳腺癌患者224例和同期于我院体检科行检查,经乳腺钼靶和超声检查结果显示正常的健康女性作为健康对照,于确诊后收集患者外周静脉血与新鲜标本及健康对照的外周静脉血提取miRNA,进行RT-PCR检测血浆及组织miRNA-155表达水平;用放射免疫方法测定血清孕酮(P4)水平;用免疫组织化学染色法检测孕激素受体(PR)表达阳性率。结果乳腺癌患者的癌组织中miRNA-155表达呈现上调(8.72±1.17),显著高于癌旁组织(2.11±0.66),差异有统计学意义(t=78.968,P<0.001);患者血清miRNA-155表达也呈现上调(5.98±2.50),与癌组织中的表达水平呈现相关关系,有统计学意义(r=0.673,P=0.028),相对于健康对照组的血清miRNA表达(2.30±0.96)也表现出升高的差异,有统计学意义(t=20.540,P<0.001);两组人群的PR表达与血清miRNA-155呈现负相关关系(r=-0.096,P=0.043);miRNA-155在≥50岁患者、淋巴结未转移者、ER阴性者,HER2阳性者及TMN分期早期患者中,表达水平明显较高,且差异有统计学意义(P<0.05);PR表达水平明显呈现出与miRNA-155表达水平相反的趋势。结论miRNA-155及PR表达负相关,与乳腺癌发生显著相关,可以作为诊断预测的标志物。     

Size‐Stable Supramolecular Hyperbranched Polymer Vesicles for Redox‐Triggered Double‐Drug Release

Supramolecular polymer vesicles (SPVs) with stimuli‐responsive features are promising multifunctional nanocarriers; however, improving the stability and developing multiple‐drug‐loaded SPVs remain key issues in this field. In this work, cross‐linked supramolecular hyperbranched polymer vesicles (SHPVs) with redox‐responsiveness are first constructed based on an AB₂‐type macromonomer‐synthesized SHP. The obtained cross‐linked SHPVs exhibit much better size stability than those of non‐cross‐linked branched self‐assemblies, and higher double‐drug‐loading capacity compared with linear supramolecular polymer self‐assemblies. Particularly, these cross‐linked SHPVs exhibit a redox‐triggered, controlled double‐drug release behavior upon the addition of H₂O₂.     

Adoptive transfer of IFN-γ-induced M-MDSCs promotes immune tolerance to allografts through iNOS pathway

Inflammation Research - Efficient production of monocytic myeloid-derived suppressor cells (M-MDSCs) with stable immunosuppressive function is crucial for immunomodulatory cell therapy for many...     

TNF-α/calreticulin dual signaling induced NLRP3 inflammasome activation associated with HuR nucleocytoplasmic shuttling in rheumatoid arthritis

Inflammation Research - The present study was undertaken to validate whether TNF-α and calreticulin (CRT) serve as dual signaling to activate nucleotide-binding oligomerization domain-,...     

Functional Silica and Carbon Nanocomposites Based on Polybenzoxazines

The preparation of organic/inorganic hybrid materials comprising a polybenzoxazine (PBZ) matrix incorporating silicon‐based species (e.g., polydimethylsiloxane [PDMS], layered silicates [clays], and polyhedral oligomeric silsesquioxanes [POSS]) and carbon‐based materials (e.g., carbon black, carbon fibers, carbon nanotubes, and graphene) has received much attention in recent years because these composites display low water absorption, low surface free energy, low dielectric constants, flame‐retardancy, and excellent thermal and mechanical properties. This short review article describes the chemical and physical approaches that are used to prepare PBZs incorporating silica and carbon nanocomposites. In addition, recent reports of their physical properties are discussed, covering their dielectric constants and dynamic mechanical, thermal, electrical, and surface properties.     

Functional characterization of CEP250 variant identified in nonsyndromic retinitis pigmentosa

Retinitis pigmentosa (RP) is the most common manifestation of inherited retinal diseases with high degree of genetic, allelic, and phenotypic heterogeneity. CEP250 encodes the C‐Nap1 protein and has been associated with various retinal phenotypes. Here, we report the identification of a mutation (c.562C>T, p.R188*) in the CEP250 in a consanguineous family with nonsyndromic RP. To gain insights into the molecular pathomechanism underlying CEP250 defects and the functional relevance of CEP250 variants in humans, we conducted a functional characterization of CEP250 variant using a novel Cep250 knockin mouse line. Remarkably, the disruption of Cep250 resulted in severe impairment of retinal function and significant retinal morphological alterations. The homozygous knockin mice showed significantly reduced retinal thickness and ERG responses. This study not only broadens the spectrum of phenotypes associated with CEP250 mutations, but also, for the first time, elucidates the function of CEP250 in photoreceptors using a newly established animal model.     

Regulation of cytochrome P450 gene expression by ketamine: a review

Introduction: Although used as an anesthetic drug for decades, ketamine appears to have garnered renewed interest due to its potential therapeutic uses in pain therapy, neurology, and psychiatry. Ketamine undergoes extensive oxidative metabolism by cytochrome P450 (CYP) enzymes. Considerable efforts have been expended to elucidate the ketamine-induced regulation of CYP gene expression. The safety profile of chronic ketamine administration is still unclear. Understanding how ketamine regulates CYP gene expression is clinically meaningful.

Areas covered: In this article, the authors provide a brief review of clinical applications of ketamine and its metabolism by CYP enzymes. We discuss the effects of ketamine on the regulation of CYP gene expression, exploring aspects of cytoskeletal remodeling, mitochondrial functions, and calcium homeostasis.

Expert opinion: Ketamine may inhibit CYP gene expression through inhibiting calcium signaling, decreasing ATP levels, producing excessive reactive oxygen species, and subsequently perturbing cytoskeletal dynamics. Further research is still needed to avoid possible ketamine–drug interactions during long-term use in the clinic.     

Cetuximab治疗非小细胞肺癌的进展

表皮生长因子受体(EGFR)在非小细胞肺癌(NSCLC)患者中存在过表达.Cetuxumab(C225,erbitux)是一种单克隆抗体,可竞争性结合EGFR细胞外配体区,抑制肿瘤生长,与放化疗有协同作用.本文综述cetuxumab联合放化疗治疗晚期NSCLC的临床前和临床资料,显示出cetuxumab具有良好耐受性.     

Stillmonitoring in Deutschland – aktueller Handlungsbedarf und Perspektiven

Bundesgesundheitsblatt - Gesundheitsforschung - Gesundheitsschutz - Stillmonitoring bezeichnet die systematische Erhebung aktueller, umfassender und genauer Daten zu Stillquoten, Stillverhalten und...