Results 31 to 40 of about 9,415 (168)
The metabolic profilings study of serum and spinal cord from acute spinal cord injury rats ^1H NMR spectroscopy [PDF]
目的:采用-1H NMR核磁共振代谢组学的方法研究急性脊髓损伤模型大鼠的代谢组学特征及生物标志物,探讨核磁共振代谢组学应用于脊髓损伤研究的可行性。方法:取8周龄清洁级雄性SD大鼠20只,体重(200±10)g,按照随机数字法分为假手术组和模型组,每组10只,模型组采用改良的Allens法制作急性脊髓不完全损伤模型,假手术组不损伤脊髓,术后第1、5、7天采用BBB运动功能评分法进行行为学观察,术后第7天收集脊髓组织作病理学观察,核磁共振代谢组学对两组大鼠血清和脊髓样本进行代谢组学分析。结果 ...
全仁夫 +4 more
core +1 more source
Metabolomic Study on the Advanced Pancreatic Cancer Model in Nude Mouse [PDF]
胰腺癌是一种恶性程度极高的消化道类恶性肿瘤,早期无显著病征,病人在确诊时病情基本已处于中晚期,而研究显示,直径小于2cm和1cm的胰腺癌术后5年生存率分别可达30%-60%和超过75%,远高于中晚期术后5年生存率。 本文为课题“基于核磁共振的代谢组学技术发现胰腺癌的生物标志物及早期诊断应用”的一部分。整个课题目的在于通过系统分析动物和人类胰腺癌中晚期模型代谢通道的异同点,然后通过构建动物早期胰腺癌模型,并结合中晚期动物与人类胰腺癌代谢通路的共同点 ...
李志水
core
ABSTRACT Metal‐doped carbon‐based nanomaterials (M‐CNM) play a strategically significant role in next‐generation precision antibacterial and antitumor therapies, as they integrate synergistic photothermal ablation, catalytic reactive oxygen species (ROS) generation, and multimodal imaging capabilities. However, their clinical translation is hindered by
Pengxiang Liu +5 more
wiley +1 more source
Malignancy-associated metabolic profiling of human glioma cell lines using 1H NMR spectroscopy [PDF]
胶质瘤恶性转化的原因和机制不明,给临床诊疗带来极大困难。越来越多的研究表明肿瘤恶性转化与细胞代谢紊乱密切相关,但胶质瘤恶性转化相关的细胞代谢特点目前尚不清楚。因此,探寻不同恶性程度胶质瘤细胞的代谢轮廓,将有助于开发监测胶质瘤恶性进展的非入侵式生物标志物和靶向代谢通路的治疗策略。本研究收集5种不同病理级别瘤组织来源的人脑胶质瘤细胞系(CHG5/SHG44/U118/U87/U251),其中CHG5和SHG44为WHOII级来源;U118,U87和U251为WHOIV级来源。体外培养后,首先通过侵袭能力 ...
邵巍
core
Read the free Plain Language Summary for this article on the Journal blog. Abstract Studies have shown that organisms may adjust metabolic rates in response to thermal variability, highlighting metabolic plasticity as a key adaptive mechanism. Understanding the extent of metabolic plasticity of an organism is key to predicting its adaptation to climate
Qian Hu +6 more
wiley +1 more source
Advances and challenges in plant spatial metabolomics research(植物空间代谢组学研究的进展与挑战)
Since the emergence of omics technologies, the metabolomics has been widely applied in the identification of metabolites in plants. However, the traditional metabolomics methods face limitations in uncovering the spatiotemporal distribution ...
张韵千(ZHANG Yunqian) +1 more
doaj +1 more source
Applications of nuclear magnetic resonance spectroscopy and Raman spectroscopy in the studies of hepatic cancer and nasopharyngeal carcinoma [PDF]
癌症是全人类共同面临的健康问题。在我国东南沿海地区,肝细胞性肝癌(hepatocellularcarcinoma,HCC)和鼻咽癌(nasopharyngealcarcinoma,NPC)形势尤为紧迫。当前针对HCC和NPC的诊疗手段因受各种因素影响而作用十分有限。针对区域性重要恶性肿瘤疾病的实验研究和临床需求出发,本文利用核磁共振波谱、拉曼光谱和表面增强拉曼光谱等技术分别研究HCC和NPC的血液、细胞株以及亚细胞组分等生化样本的谱学特征,结合多种统计学方法从诊、疗两个层面探索相关的生物标记物 ...
陈阳
core
Advances in Elemene Nanodelivery Systems: From Material Design to Disease Treatment
ABSTRACT Elemene (ELE) is a bioactive sesquiterpenoid extracted from traditional Chinese herbs, demonstrating broad‐spectrum antitumor, anti‐inflammatory, and analgesic properties with significant therapeutic potential. However, its clinical utility is constrained by inherent physicochemical limitations, including volatility and hydrophobicity, which ...
Xiao Wang +9 more
wiley +1 more source
The application of NMR techniques in origin characterization and adulteration identification of honey [PDF]
随着生活条件的不断提升,人们对食品品质的要求越来越高。蜂蜜作为一种天然甜味剂,可以为人体提供丰富的营养成分。而植物来源不同,产地不同的蜂蜜成分存在差异,其中糖类、氨基酸等成分含量上的差异,会带来蜂蜜甜度,气味等性状的不同,而这些通常是蜂蜜等级的标志。此外,近几年掺假蜂蜜在市场上不断出现也给人民群众的健康和生命安全带来威胁。所以,有效地对蜂蜜进行溯源分析和掺假鉴别成为消费者和食品企业的必然要求,这既是国际科学研究的前沿,也是与人类健康和生活密切相关的重要社会问题。然而传统的鉴别方法,过于耗费人力物力 ...
郑馨
core
Read the free Plain Language Summary for this article on the Journal blog. Abstract Non‐structural carbohydrates (NSC) are critical mediators of plant adaptation to fluctuating light environments. They are tightly coordinated with plant economic strategy, that is, leaf economics spectrum (LES) and root economics spectrum (RES).
Lulu Xie +6 more
wiley +1 more source

