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An integrated study on the immunomodulatory effects of Tetrastigma hemsleyanum Diels et Gilg in mice: Pharmacodynamics, serum pharmacochemistry, and network pharmacology 赤黄Tetrastigma hemsleyanum Diels et Gilg对小鼠免疫调节作用的综合研究:药效学、血清药物化学和网络药理学
IF 1.4 4区 化学 Q4 CHEMISTRY, ANALYTICAL Pub Date : 2026-09-01 Epub Date: 2026-07-23 DOI: 10.1016/j.cjac.2026.100761
Gan Wang, Wenguang Zhang, Yongzhi Liu, Guangfeng Dong, Mengyuan Fu, Yang Wang, Peng Sun, Jiangting Liu
Tetrastigma hemsleyanum Diels et Gilg (TH) is a herbaceous vine in the family Vitaceae with known immune-enhancing properties. However, the bioactive components and therapeutic mechanisms of TH remain unclear. Therefore, this study aimed to establish a comprehensive approach integrating pharmacodynamic validation, serum pharmacochemistry, and network pharmacology to determine the immunomodulatory effects of TH and screen for its bioactive components. Firstly, the immunomodulatory effects of TH on mice were analyzed and confirmed by monitoring body weight changes, organ indices, serum results, and TCR sequencing. Secondly, the prototype components absorbed into blood in plasma after administration of TH ethanol extract (THE) were analyzed and identified by UPLC-Q-Exactive Orbitrap MS, and ten prototype components were characterized, mainly phenolic acids and flavonoids. Finally, the obtained plasma components were input into the SwissTarget Prediction tool for drug target prediction, and disease targets were obtained from the Genecard and DrugBank databases. Subsequently, a protein-protein interaction (PPI) network was constructed to screen and determine core targets such as AKT1, STAT3, HIF1A. By identifying the plasma components of THE and their predicted core targets, this study provides a pharmacological basis for further investigation into the immunomodulatory mechanisms of TH.
四柱藤(Tetrastigma hemsleyanum Diels et Gilg)是一种已知具有免疫增强特性的葡萄科草本植物。然而,TH的生物活性成分和治疗机制尚不清楚。因此,本研究旨在建立一种结合药效学验证、血清药物化学和网络药理学的综合方法来确定TH的免疫调节作用并筛选其生物活性成分。首先,通过监测小鼠体重变化、脏器指数、血清结果和TCR测序,分析并证实TH对小鼠的免疫调节作用。其次,采用UPLC-Q-Exactive Orbitrap质谱分析鉴定了给药后血浆中吸收到血液中的原型成分,并对10种原型成分进行了表征,主要为酚酸类和黄酮类。最后,将获得的血浆成分输入SwissTarget预测工具进行药物靶点预测,并从Genecard和DrugBank数据库中获得疾病靶点。随后,构建蛋白蛋白相互作用(PPI)网络,筛选和确定核心靶点,如AKT1、STAT3、HIF1A。本研究通过鉴定the的血浆成分及其预测的核心靶点,为进一步研究TH的免疫调节机制提供了药理学基础。
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引用次数: 0
Comparative supramolecular assemblies in traditional decoctions and formula granules of Magnolia officinalis–Glycyrrhiza uralensis: Roles of excipients and thermal history 厚朴-乌拉甘草传统煎剂和配方颗粒的超分子组装比较:辅料的作用和热史
IF 1.4 4区 化学 Q4 CHEMISTRY, ANALYTICAL Pub Date : 2026-09-01 Epub Date: 2026-07-31 DOI: 10.1016/j.cjac.2026.100762
Tao Zhang, Qingping Wang, Chongyu Shi, Huiyi Wen, Junchao Liu, Jianqun Liu
<div><div>Supramolecular assemblies (SMAs) formed during traditional decoction are increasingly recognized as an important physical-state contributor to the efficacy of traditional Chinese medicine (TCM), but whether these assemblies form reproducibly in Chinese herbal formula granules—and how excipients and thermal history modulate their behavior—remains poorly characterized. We compared the herb pair <em>Magnolia officinalis</em>–<em>Glycyrrhiza uralensis</em> prepared as a traditional co-decoction (MG) and as reconstituted formula granules (MGFG). SMAs were enriched by centrifugation followed by dialysis to yield MG-SMAs and MGFG-SMAs (0, 30, and 60 min re-decoction). An excipient-containing model was generated by adding dextrin, and the corresponding assembly-enriched colloidal fraction was operationally designated MGE-SMAs. We systematically compared assembly morphology and solution-phase colloidal properties using scanning electron microscopy (SEM) and dynamic light scattering (DLS) and probed the assembly microenvironment using Fourier-transform infrared spectroscopy (FT-IR) and ultraviolet–visible spectroscopy (UV–vis). Chemical profiling was performed by Ultra-high performance liquid chromatography with quadrupole time-of-flight mass spectrometry/mass spectrometry (UPLC-Q-TOF-MS/MS) combined with multivariate analyses, and representative constituents were quantified by High-performance liquid chromatography (HPLC). Anti-Staphylococcus aureus activity was evaluated by growth-inhibition curves (OD<sub>600</sub>), MIC/MBC assays, and Live/Dead staining. The MG decoction presented a highly heterogeneous dispersion (1040.97 ± 91.00 nm; PDI 0.98 ± 0.02), whereas its centrifugation- and dialysis-derived colloidal fraction, MG-SMAs, exhibited a narrower nanoscale particle-size distribution (229.43 ± 3.27 nm; PDI 0.15 ± 0.07) with a similarly weakly negative ζ-potential and reduced conductivity, consistent with enrichment of a defined colloidal fraction. Addition of dextrin and reconstitution from granules increased dispersity (PDI 0.56–0.71) and reduced |ζ| (≈ −7 mV), indicating excipient- and processing-induced heterogeneity. Re-decoction was associated with time-dependent changes in the colloidal properties of MGFG-derived fractions. Compared with unheated MGFG-SMAs, MGFG-SMAs-30 exhibited a lower mean hydrodynamic particle size and PDI, while extending re-decoction to 60 min produced no further reduction in these parameters. UPLC-Q-TOF-MS/MS revealed broadly overlapping component coverage but a preparation-dependent redistribution of metabolites, and HPLC confirmed selective enrichment and depletion trends among marker compounds. Functionally, MG and MG-SMAs showed the same MIC against S. aureus (0.8 mg/mL), whereas excipient-containing systems required higher inhibitory concentrations; among granule-derived samples, MGFG-SMAs-30 produced the strongest inhibition. Although the excipients increased the concentration required for antibacterial
传统汤剂中形成的超分子组装物(SMAs)越来越被认为是中药疗效的重要物理状态因素,但这些组装物是否在中药配方颗粒中可重复形成,以及赋形剂和热历史如何调节它们的行为,目前尚不清楚。对厚朴-乌拉尔甘草传统共煎剂(MG)和配方颗粒剂(MGFG)进行了比较。离心富集SMAs,再透析得到MG-SMAs和MGFG-SMAs(再煎0、30和60 min)。通过添加糊精生成含赋形剂的模型,相应的富集组装的胶体组分被操作命名为mge - sma。我们利用扫描电子显微镜(SEM)和动态光散射(DLS)系统地比较了组装体的形貌和液相胶体性质,并利用傅里叶变换红外光谱(FT-IR)和紫外可见光谱(UV-vis)探测了组装体的微环境。化学分析采用超高效液相色谱-四极杆飞行时间质谱/质谱(UPLC-Q-TOF-MS/MS)结合多变量分析,代表性成分采用高效液相色谱(HPLC)定量分析。通过生长抑制曲线(OD 600)、MIC/MBC测定和活/死染色评价其抗金黄色葡萄球菌活性。MG煎剂表现出高度不均匀的分散(1040.97±91.00 nm, PDI 0.98±0.02),而其离心和透析衍生的胶体组分MG- sma表现出更窄的纳米级粒径分布(229.43±3.27 nm, PDI 0.15±0.07),具有类似的弱负ζ-电位和降低的电导率,与特定胶体组分的富集一致。糊精的加入和颗粒的重构增加了分散性(PDI 0.56-0.71),降低了|ζ|(≈−7 mV),表明辅料和加工诱导的异质性。重新煎煮与mgfg衍生组分胶体性质的时间依赖性变化有关。与未加热的MGFG-SMAs相比,MGFG-SMAs-30表现出更低的平均水动力粒径和PDI,而延长再煎60 min不会进一步降低这些参数。UPLC-Q-TOF-MS/MS显示了广泛的重叠成分覆盖,但代谢物的重分布依赖于制剂,HPLC证实了标记化合物的选择性富集和耗竭趋势。功能上,MG和MG- sma对金黄色葡萄球菌的MIC值相同(0.8 MG /mL),而含有赋形剂的系统需要更高的抑制浓度;在颗粒来源的样品中,mgfg - sma -30产生最强的抑制作用。虽然辅料增加了抗菌抑制所需的浓度,但再加热部分提高了颗粒衍生制剂的活性,这表明组成和组装状态都可能影响生物活性。本研究建立了一个将胶体表征与高分辨率化学分析相结合的分析工作流程,以研究辅料和热历史如何影响配方颗粒中富集组合体的胶体组分的形成和性质。
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引用次数: 0
Exploration of the chemical constituents and mechanisms of Runzaoling prescription in treatment of Sjögren's syndrome using UHPLC-Q-Exactive Orbitrap MS/MS combined with experimental validation UHPLC-Q-Exactive Orbitrap MS/MS结合实验验证探讨润疮灵方治疗Sjögren综合征的化学成分及作用机制
IF 1.4 4区 化学 Q4 CHEMISTRY, ANALYTICAL Pub Date : 2026-09-01 Epub Date: 2026-08-19 DOI: 10.1016/j.cjac.2026.100767
Hanzhi Yi, Minhui Wang, Chunxia Huang, Cong Huang, Can Liu, Ping Zeng, Lei Hou, Ting Mei, Yidi Zhang, Yu Zhan, Sen Yang, Xueming Yao, Wukai Ma, Changming Chen

Background

Runzaoling prescription (RZL) has been used clinically for many years, and has shown potential therapeutic effects in previous studies for the treatment of Sjögren's Syndrome (SS). Even so, the specific active components and underlying mechanisms by which RZL exerts its anti-SS effects remain unclear.

Materials and methods

Ultra-high performance liquid chromatography coupled with Q-Exactive Orbitrap tandem mass spectrometry (UHPLC-Q-Exactive Orbitrap MS/MS) was employed to systematically identify the chemical constituents of RZL in vitro, as well as those components that enter the bloodstream in mice. The main active components, core genes and related signaling pathways of RZL for SS were screened by network pharmacology. Furthermore, the affinity between important components and their primary targets was predicted using molecular docking technology. Finally, the animal model of spontaneous SS (NOD mice) was established to evaluate the efficacy of RZL.

Results and conclusions

728 components were identified in RZL, and 49 prototype components as well as 7 metabolites were identified from the blood of mice. Network pharmacological analysis showed that RZL targeted key proteins like ICAM1, TNF, TLR4, and EGFR through active components such as isorhapontigenin, hypaphorine and cyanidin, modulating pathways like NF-κB, PI3K/AkT, MAPK, HIF-1 and TNF to exhibit the anti-inflammatory effects for treating SS. Molecular docking revealed that key active components of RZL effectively interact with proteins in the NF-κB pathway. Animal studies indicated that RZL alleviated pathological damage, enhanced saliva production and submandibular gland index in SS model mice. Additionally, it may regulate the TLR4/MyD88/NF-κB signaling pathway and effectively inhibit the inflammatory response.
背景:枳实灵方(RZL)临床应用多年,在既往研究中显示出治疗Sjögren综合征(SS)的潜在疗效。尽管如此,RZL发挥其抗ss作用的具体活性成分和潜在机制仍不清楚。材料与方法采用超高效液相色谱联用Q-Exactive Orbitrap串联质谱法(UHPLC-Q-Exactive Orbitrap MS/MS)系统鉴定RZL体外及小鼠血液中的化学成分。通过网络药理学方法筛选RZL对SS的主要活性成分、核心基因及相关信号通路。此外,利用分子对接技术预测了重要组分与其主要靶点之间的亲和力。最后,建立自发性SS (NOD小鼠)动物模型,评价RZL的疗效。结果与结论从RZL中鉴定出728种成分,从小鼠血液中鉴定出49种原型成分和7种代谢物。网络药理分析显示,RZL通过异hahapontigenin、hypaphorine、cyanidin等活性成分靶向ICAM1、TNF、TLR4、EGFR等关键蛋白,调节NF-κB、PI3K/AkT、MAPK、HIF-1、TNF等通路,发挥抗炎治疗SS的作用。分子对接发现RZL的关键活性成分可与NF-κB通路中的蛋白有效相互作用。动物实验表明,RZL可减轻SS模型小鼠的病理损伤,提高唾液分泌和颌下腺指数。此外,它可能调节TLR4/MyD88/NF-κB信号通路,有效抑制炎症反应。
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引用次数: 0
Preparation of T-shaped hollow Au nanocylinder arrays for the detection of hydrazine based on a Schiff base reaction 基于希夫碱反应的t形空心金纳米柱阵列检测肼的制备
IF 1.4 4区 化学 Q4 CHEMISTRY, ANALYTICAL Pub Date : 2026-09-01 Epub Date: 2026-05-28 DOI: 10.1016/j.cjac.2026.100751
Xiang Zhang, Xiangyuan Cui, Xueguo Liu, Mengshuo Li, Jiancheng Luo, Haixiong Ge
Hydrazine is a well-known hazardous environmental pollutant and toxic compound.Therefore, there is an urgent demand for an effective analytical monitoring method to safeguard the public from unforeseen exposure to harmful contaminants. Functional surface-enhanced Raman scattering (SERS) has recently emerged as a highly advantageous technique for sensing trace biochemical substances, owing to its unique capacity for fingerprint-like molecular identification, making it suitable for hydrazine detection. Herein, we used UV-nanoimprint lithography (UV-NIL) combined with glancing angle deposition of electron beam evaporation (GLAD) to prepare T-shaped PVP/Au nanocylinder arrays with gaps. T-shaped hollow Au nanocylinder arrays with gaps could be achieved by dissolving PVP nanocylinder with 60 °C hot water. 4-Mercaptobenzaldehyde incorporated on the T-shaped hollow Au nanocylinder arrays (T-shaped hollow Au nanocylinder arrays@4-MBA), reacted with hydrazine to form Raman active benzaldehyde hydrazone based on the Schiff base reaction, enabling sensitive and selective SERS detection of hydrazine. The limit of detection (LOD) of hydrazine was as low as 4.1 × 10–9 mol/L. In addition, T-shaped hollow Au nanocylinder arrays@4-MBA platform prepared by this method can maintain high repeatability and stability after six month of fabrication. Therefore, the T-shaped hollow Au nanocylinder arrays functionalized with 4-MBA provides an efficient platform for rapid, sensitive, stable, and highly selective detection of hydrazine.
联氨是一种众所周知的有害环境污染物和有毒化合物。因此,迫切需要一种有效的分析监测方法,以保护公众免受意外的有害污染物的暴露。功能表面增强拉曼散射(Functional surfaces enhanced Raman scattering, SERS)由于其独特的类似指纹的分子识别能力,近年来成为一种非常有利的痕量生化物质传感技术,使其适用于肼的检测。本文采用紫外-纳米压印技术(UV-NIL)结合电子束蒸发掠角沉积技术(GLAD)制备了带间隙的t型PVP/Au纳米柱阵列。用60℃热水溶解PVP纳米柱,可以得到带间隙的t形中空金纳米柱阵列。将4-巯基苯甲醛置于t形空心Au纳米柱阵列(t形空心Au纳米柱arrays@4-MBA)上,与肼反应形成基于希夫碱反应的拉曼活性苯甲醛腙,实现了对肼的灵敏选择性SERS检测。联氨的检出限(LOD)低至4.1 × 10-9 mol/L。此外,该方法制备的t形空心金纳米柱arrays@4-MBA平台在制作6个月后仍能保持较高的重复性和稳定性。因此,4-MBA功能化的t形空心金纳米柱阵列为快速、灵敏、稳定、高选择性地检测联氨提供了一个有效的平台。
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引用次数: 0
Effects of Combretum micranthum against menopause-related osteoporosis based on ADMET, network pharmacology, and experimental validation 基于ADMET,网络药理学和实验验证的微粉对绝经相关性骨质疏松症的影响
IF 1.4 4区 化学 Q4 CHEMISTRY, ANALYTICAL Pub Date : 2026-08-01 Epub Date: 2026-04-15 DOI: 10.1016/j.cjac.2026.100736
Ouedraogo Elisabeth, Owona Pascal Emmanuel, Tindano Basile, Bilanda Danielle Claude, Zabré Généviève, Tcheutchoua Carlos Yannick, Koussoubé Abdelaziz, Kaboré Tééganimbé Jean Luc, Bidingha A. Goufani Ronald, Ogunlakin Daniel Akingbolabo, Bayala Balé
Low bone density is a defining feature of osteoporosis. Combretum micranthum is traditionally used in Burkina Faso against osteoporosis. This research sought to assess the effect of Combretum micranthum (AECM) on an osteoporosis model induced by ovariectomy and to conduct molecular docking and ADMET screening of the identified potentially active compounds from the AECM leaves by using in silico techniques.
A pharmacology network was constructed to identify genes corresponding to active compound targets. Networks of compound targets and protein-protein interactions were constructed using Cytoscape software. To evaluate C. micranthum's effect on the ovariectomized rats, a sham-operated group and some ovariectomized groups were treated with distilled water or with AECM and estradiol valerate.
In the in silico study, the extract compounds like myricetin and rhamnazin predicted good pharmacokinetics and low toxicity, with LD50 over 2000 mg/kg bw. C. micranthum extract increased significantly (p < 0.001) femoral calcium and phosphorus, and decreased the urinary calcium and phosphorus compared to the group treated with distilled water. It also reduced oxidative stress and improved lipid profiles. Moreover, the histological report on the femurs of the treated rats showed a correction of the lesions caused by ovariectomy. Myricetin's interaction with hypoxia-inducible factor-1α (HIF-1α), with –95.0929 energy, could have therapeutic potential for osteoporosis.
C. micranthum promoted bone health, offering a promising alternative to conventional osteoporosis treatments with fewer side effects.
低骨密度是骨质疏松症的典型特征。在布基纳法索,传统上用豆蔻来治疗骨质疏松症。本研究旨在评估微荆芥(Combretum microthum, AECM)对卵巢切除所致骨质疏松症模型的影响,并利用计算机技术对从微荆芥叶中鉴定出的潜在活性化合物进行分子对接和ADMET筛选。构建药理学网络,识别活性化合物靶点对应的基因。使用Cytoscape软件构建了化合物靶点和蛋白质相互作用的网络。为了评价微红花对去卵巢大鼠的影响,假手术组和部分去卵巢组分别用蒸馏水或AECM和戊酸雌二醇治疗。在硅晶实验中,杨梅素和鼠李那嗪等提取物具有良好的药代动力学和低毒性,LD50在2000 mg/kg bw以上。与蒸馏水处理组相比,微红花提取物显著提高(p < 0.001)股骨钙和磷,降低尿钙和磷。它还能减少氧化应激,改善血脂。此外,治疗大鼠股骨的组织学报告显示卵巢切除术引起的病变得到了纠正。杨梅素与缺氧诱导因子-1α (HIF-1α)的相互作用能量为-95.0929,可能具有治疗骨质疏松的潜力。微粉促进骨骼健康,为传统骨质疏松症治疗提供了一种有希望的替代方案,副作用更少。
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引用次数: 0
Corrigendum to “Targeted Isolation of Glycyrrhizic Acid from the Phloem of Glycyrrhiza glabra via Macroporous Resin” [Chinese Journal of Analytical Chemistry, 2026 (in press), Article Number 100701] “大孔树脂定向分离甘草韧皮部中的甘草酸”的勘误表[中国分析化学杂志,2026(已出版),文章号100701]
IF 1.4 4区 化学 Q4 CHEMISTRY, ANALYTICAL Pub Date : 2026-08-01 Epub Date: 2026-08-06 DOI: 10.1016/j.cjac.2026.100734
Xuebin Li, Liwei Zhao, Qingqi Feng, Jianlong Ma
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引用次数: 0
Amelioration of acute gastritis by Biling Weitong granules: A multi-omics analysis of synergistic PI3K/AKT and NF-κB pathway regulation 胆汁胃通颗粒改善急性胃炎:PI3K/AKT和NF-κB通路协同调节的多组学分析
IF 1.4 4区 化学 Q4 CHEMISTRY, ANALYTICAL Pub Date : 2026-08-01 Epub Date: 2026-07-21 DOI: 10.1016/j.cjac.2026.100759
Shuang Li, Weijuan Lei, Ping Sun, Ying Li, Wei Zhang, Yang Li, Yue He, Chenning Zhang

Introduction

Gastric diseases have become a global health challenge due to infectious agents and unhealthy lifestyles, with a notable trend of rising incidence among younger populations in recent years, including children and adolescents who increasingly suffer from gastric discomfort. Biling Weitong Granules, an improved formulation derived from the classical prescriptions "Jinlingzi Powder" and "Zuojin Pill", embodies the therapeutic principles of "unblocking and descending theory" and "qi-blood harmony theory" in spleen-stomach disease treatment. This compound demonstrates efficacy in regulating qi flow, activating blood circulation, harmonizing the stomach, and alleviating pain, making it clinically applicable for various acute and chronic gastric disorders. However, its precise pharmacological mechanisms remain incompletely elucidated.

Methods

The chemical components of Biling Weitong Granules (BLWTG) were identified using UHPLC-Q-Orbitrap-MS technology. Subsequently, an acute gastritis mouse model was established by absolute ethanol induction, with histopathological damage to gastric tissues evaluated through H&E staining. An integrated analysis combining network pharmacology, metabolomics, and transcriptomics was then conducted to investigate the mechanism underlying the anti-acute gastritis effects of Biling Weitong Granules. The expression levels of PI3K, AKT, P50, P65, IKKα, IκBα and their phosphorylated forms were detected by Western blotting.

Results

This study identified a total of 125 compounds in Biling Weitong Granules through comprehensive analysis. Network pharmacology analysis revealed that the therapeutic effects against acute gastritis may be mediated through key pathways including "Apoptosis", "TNF signaling pathway", "JAK-STAT signaling pathway", and "PI3K-Akt signaling pathway". Furthermore, integrated metabolomics and transcriptomics analyses demonstrated that Biling Weitong Granules exert their therapeutic effects by regulating metabolic abnormalities of glutathione and other amino acids, consequently modulating critical cellular processes such as oxidative stress, inflammatory responses, and apoptosis. Western blot analysis revealed that the phosphorylation levels of p-PI3K, p-AKT, p-P65, p-P50, p-IKKα, and p-IκBα were reduced after treatment with Biling Weitong Granules.

Conclusion

BLWTG exert therapeutic effects against acute gastritis (AG) by modulating metabolic abnormalities of glutathione and other amino acids, thereby influencing multiple signaling pathways including "Apoptosis", "TNF signaling pathway", "JAK-STAT signaling pathway", and "PI3K-Akt signaling pathway". These findings reveal the complex mechanistic basis underlying the anti-AG effects of this traditional Chinese medicine.
由于传染性病原体和不健康的生活方式,胃疾病已成为全球健康挑战,近年来在年轻人群中的发病率有明显上升趋势,包括儿童和青少年,他们越来越多地遭受胃不适。痹胃通颗粒是在经典方药“金陵子散”和“左金丸”的基础上改良而成,体现了脾胃病治疗的“通降论”和“气血调和论”的治疗原则。该复方具有调气活血、润胃、止痛等功效,临床适用于各种急慢性胃病。然而,其确切的药理机制仍未完全阐明。方法采用超高效液相色谱- q -轨道谱联用技术对胆汁胃通颗粒(BLWTG)进行化学成分鉴定。随后,采用无水乙醇诱导建立急性胃炎小鼠模型,通过H&;E染色评价对胃组织的组织病理学损伤。通过网络药理学、代谢组学、转录组学等综合分析,探讨痹灵胃通颗粒抗急性胃炎作用的机制。Western blotting检测PI3K、AKT、P50、P65、IKKα、IκBα及其磷酸化形式的表达水平。结果通过综合分析,从痹灵胃通颗粒中鉴定出125种化合物。网络药理学分析显示,其对急性胃炎的治疗作用可能通过“凋亡”、“TNF信号通路”、“JAK-STAT信号通路”、“PI3K-Akt信号通路”等关键通路介导。此外,综合代谢组学和转录组学分析表明,胆汁胃通颗粒通过调节谷胱甘肽和其他氨基酸的代谢异常来发挥其治疗作用,从而调节氧化应激、炎症反应和细胞凋亡等关键细胞过程。Western blot分析结果显示,给药后p-PI3K、p-AKT、p-P65、p-P50、p-IKKα、p- κ b α磷酸化水平降低。结论blwtg通过调节谷胱甘肽等氨基酸代谢异常,从而影响“凋亡”、“TNF信号通路”、“JAK-STAT信号通路”、“PI3K-Akt信号通路”等多种信号通路,对急性胃炎(AG)发挥治疗作用。这些发现揭示了中药抗ag作用的复杂机制基础。
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引用次数: 0
Transcriptional reprogramming revealed in degraded mouse liver RNA beyond conventional RIN thresholds 转录重编程显示,降解小鼠肝脏RNA超过常规RIN阈值
IF 1.4 4区 化学 Q4 CHEMISTRY, ANALYTICAL Pub Date : 2026-08-01 Epub Date: 2026-05-09 DOI: 10.1016/j.cjac.2026.100743
Yuqi Sheng, Zhiyu Liu, Yuwei Yang, Zi Chen, Qinyu Ge
The RNA integrity number (RIN) is often regarded as a stringent gatekeeper in transcriptomics, frequently resulting in the exclusion of valuable clinical and field samples. We systematically challenged this prerequisite by simulating ex vivo degradation in mouse liver tissue. Although RIN values declined sharply with exposure to room temperature, the global transcriptome remained robust and showed no correlation with RIN. Importantly, our time-series analysis revealed that RNA degradation is not a source of random noise but a structured, biologically meaningful process. We identified three coordinated transcriptional programs: rapid functional shutdown, acute alarm response, and progressive immune activation. These findings demonstrate that data from low-RIN samples are not compromised but biologically informative. This study presents a novel framework for transcriptomics. RNA degradation is no longer viewed solely as a technical obstacle; instead, it has become a valuable tool for investigating organ-wide stress responses. Additionally, this approach helps maximize the utility of precious biobanked resources.
RNA完整性数(RIN)通常被认为是转录组学中的严格把关人,经常导致排除有价值的临床和现场样本。我们系统地通过模拟小鼠肝组织的体外降解来挑战这一先决条件。尽管RIN值随着室温的暴露而急剧下降,但总体转录组保持强劲,与RIN没有相关性。重要的是,我们的时间序列分析表明,RNA降解不是随机噪声的来源,而是一个结构化的、有生物学意义的过程。我们确定了三个协调的转录程序:快速功能关闭,急性报警反应和进行性免疫激活。这些发现表明,低rin样本的数据没有受到损害,但具有生物学信息。本研究提出了一个新的转录组学框架。RNA降解不再仅仅被视为技术障碍;相反,它已经成为研究全器官应激反应的有价值的工具。此外,这种方法有助于最大限度地利用宝贵的生物资源库资源。
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引用次数: 0
Diagnostic accuracy of bile acid detection via mass spectrometry for intrahepatic cholestasis of pregnancy (ICP): A systematic review and meta-analysis 质谱法检测胆汁酸对妊娠肝内胆汁淤积症(ICP)的诊断准确性:一项系统综述和荟萃分析
IF 1.4 4区 化学 Q4 CHEMISTRY, ANALYTICAL Pub Date : 2026-08-01 Epub Date: 2026-04-09 DOI: 10.1016/j.cjac.2026.100732
Xue-Chun Wang, Jing-Hua Liu, Xiao-Hong Zhang, Min Liu, Dan-Dan Xu, Wei Liu

Background

The diagnosis of intrahepatic cholestasis of pregnancy (ICP) has traditionally relied on detecting elevated total bile acids. However, measuring total levels may not capture the full diagnostic picture. Mass spectrometry (MS) now allows precise measurement of individual bile acid subtypes. Yet, the clinical diagnostic value of this detailed profile remains unclear. This systematic review and meta-analysis therefore evaluates the diagnostic accuracy of MS-based bile acid analysis for ICP.

Methodology: Search Strategy and Study Selection

We systematically queried five databases: PubMed, Web of Science, the Cochrane Library, OVID, and CNKI. Our search strategy incorporated both keywords and Medical Subject Headings (MeSH) related to intrahepatic cholestasis of pregnancy, its diagnosis, and mass spectrometry. Two authors then independently screened the retrieved records, extracted the relevant data, and evaluated the risk of bias in the studies that were included.

Statistical Synthesis

The primary goal of our analysis was to determine how well mass spectrometry–based bile acid profiling identifies ICP. We therefore pooled the reported sensitivity and specificity from the selected studies. To present the overall diagnostic accuracy, we constructed a summary receiver operating characteristic (SROC) curve. All statistical work was completed using Stata 17.0, Review Manager 5.4, and Meta-Disc.

Results

The present systematic review and meta-analysis evaluated eight studies that focused on two clinical applications of mass spectrometry (MS) in bile acid profiling. For distinguishing ICP from healthy pregnancies (four studies), the assay showed excellent accuracy, with sensitivity at 0.95 (95% confidence interval [CI]: 0.89–0.98), and specificity at 0.95 (95% CI: 0.91–0.98). The diagnostic odds ratio was 332.18 (95% CI: 100.89–1093.71), and the area under the SROC curve reached 0.9860.
In the comparison between ICP and asymptomatic hypercholanemia of pregnancy (four studies), the method continued to perform well, showing a sensitivity of 0.93 (95% CI: 0.86–0.97) and specificity of 0.92 (95% CI: 0.84–0.97). The diagnostic odds ratio was 156.54 (95% CI: 47.07–520.55), and the SROC area was 0.9735.

Conclusion

These findings demonstrate that mass spectrometry-based bile acid profiling provides reliable diagnostic performance for intrahepatic cholestasis of pregnancy, clearly distinguishing it from healthy pregnancies and from asymptomatic hypercholanemia of pregnancy (AHP). Moving forward, key priorities will involve confirming these results in larger, multi-center studies, creating unified international guidelines for clinical application, and resolving the recognized shortcomings of current diagnostic approaches for ICP.
背景妊娠肝内胆汁淤积症(ICP)的诊断传统上依赖于检测总胆汁酸升高。然而,测量总水平可能无法捕捉到诊断的全貌。质谱法(MS)现在可以精确测量单个胆汁酸亚型。然而,临床诊断价值的详细资料仍不清楚。因此,本系统综述和荟萃分析评估了MS-based胆汁酸分析对ICP的诊断准确性。方法:检索策略和研究选择我们系统地查询了5个数据库:PubMed, Web of Science, Cochrane Library, OVID和CNKI。我们的搜索策略包括与妊娠肝内胆汁淤积、诊断和质谱相关的关键词和医学主题词(MeSH)。然后两位作者独立筛选检索到的记录,提取相关数据,并评估纳入研究的偏倚风险。统计综合我们分析的主要目的是确定基于质谱的胆汁酸谱分析识别ICP的效果。因此,我们汇总了所选研究报告的敏感性和特异性。为了呈现整体诊断的准确性,我们构建了一个总的接受者工作特征(SROC)曲线。所有统计工作均使用Stata 17.0、Review Manager 5.4和Meta-Disc完成。本系统综述和荟萃分析评估了8项研究,重点关注了质谱(MS)在胆汁酸谱分析中的两项临床应用。对于区分ICP与健康妊娠(四项研究),该方法显示出极好的准确性,灵敏度为0.95(95%可信区间[CI]: 0.89-0.98),特异性为0.95 (95% CI: 0.91-0.98)。诊断优势比为332.18 (95% CI: 100.89 ~ 1093.71), SROC曲线下面积为0.9860。在ICP与妊娠无症状高胆管血症(4项研究)的比较中,该方法继续表现良好,敏感性为0.93 (95% CI: 0.86-0.97),特异性为0.92 (95% CI: 0.84-0.97)。诊断优势比为156.54 (95% CI: 47.07-520.55), SROC面积为0.9735。结论基于质谱法的胆汁酸谱分析对妊娠肝内胆汁淤积症具有可靠的诊断价值,可明确区分妊娠肝内胆汁淤积症与健康妊娠和妊娠无症状高胆汁症(AHP)。展望未来,关键的优先事项将包括在更大的、多中心的研究中确认这些结果,为临床应用创建统一的国际指南,并解决当前ICP诊断方法公认的缺点。
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引用次数: 0
Single-antibody lateral flow immunoassay with AIE nanoparticles for rapid detection of Bungarus multicinctus venom AIE纳米颗粒单抗体侧流免疫法快速检测黄颡鱼毒液
IF 1.4 4区 化学 Q4 CHEMISTRY, ANALYTICAL Pub Date : 2026-08-01 Epub Date: 2026-05-22 DOI: 10.1016/j.cjac.2026.100750
Yang Fu, Feng Xu, Zhangren Yan, Ao Zhan, Zhiruo Chen, Xuanyu Wang, Xiaoli Wu, Wanchun Wang
Bungarus multicinctus (B. multicinctus)envenomation is an acute and potentially fatal condition often mistaken for bites from non-venomous snakes. As a result, it is crucial to diagnose this condition rapidly and accurately. This study presents the development of a rapid test strip for detecting B. multicinctus venom, utilizing aggregation-induced emission nanoparticles (AIENPs) conjugated with the venom as a probe. We established a method for rapid detection using a single antibody on an immunochromatographic strip. The methodologies employed encompass antibody preparation, purification, specificity testing, and the optimization of conditions. The blocking agent should be 2 mg, the conjugation time 3 min, and the minimum amount of AIENPs 1 mg. The results demonstrate that the polyclonal antibody is particular, with the test strip capable of detecting as low as 200 ng/mL of B. multicinctus venom and distinguishing it from other common Chinese snake venoms. The simulation testing of real samples demonstrated a 98% positive rate and a 0% false-positive rate. Although clinical samples were not tested, the strip is sensitive, accurate, and simple, offering significant potential for diagnosing Bungarus snake bites and providing new insights for the development of other test strips.
多角蛇(B. multicinctus)中毒是一种急性和潜在致命的疾病,经常被误认为是被无毒的蛇咬伤。因此,快速准确地诊断这种疾病至关重要。本研究利用聚合诱导发射纳米粒子(AIENPs)作为探针,开发了一种快速检测多刺白蛉毒液的试纸条。建立了免疫层析条单抗体快速检测方法。所采用的方法包括抗体制备、纯化、特异性测试和条件优化。阻断剂剂量为2mg,偶联时间为3min, AIENPs最小剂量为1mg。结果表明,该多克隆抗体特异性强,试纸条可检出低至200 ng/mL的多inctus B.毒液,并能与其他常见的中国蛇毒进行区分。对真实样品的模拟测试表明,该方法的阳性率为98%,假阳性率为0%。虽然没有对临床样本进行测试,但该试纸灵敏、准确、简单,为诊断Bungarus蛇咬伤提供了巨大的潜力,并为其他试纸的开发提供了新的见解。
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引用次数: 0
期刊
Chinese Journal of Analytical Chemistry
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