13 results match your criteria: "Qinghai Provincial Drug Inspection and Testing Institute[Affiliation]"

Spatial metabolomics and feature-based molecular networking to unveiling in-situ quality markers landscape and reflecting geographic origins of pomegranate seeds.

Food Chem

January 2025

Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, School of Pharmacy, Second Military Medical University, Shanghai, China. Electronic address:

Pomegranate seeds, a by-product of pomegranate processing, are gaining attention in food industries due to their high antioxidant activity. However, the lack of quality markers reflecting activity and spatial characteristics limits their utilization and product stability. In this research, a selective and sensitive method integrating ultra performance liquid chromatography-quadrupole time-of-flight mass spectrometry with feature-based molecular networking, and desorption electrospray ionization-mass spectrometry imaging developed to identify components and locate in-situ images of quality markers via spatial metabolomics analysis.

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A strategy of Q-markers identification based on effect, property flavour material basis and rapid quantitative evaluation via near-infrared spectroscopy and chemometric methods for the quality control of Flos Trollii (FT).

J Ethnopharmacol

January 2025

School of Pharmacy, Ningxia Medical University, Yinchuan, China; Key Laboratory of Ningxia Minority Medicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan, China; Ningxia Key Laboratory of Drug Development and Generic Drug Research, Ningxia Medical University, Yinchuan, China. Electronic address:

Article Synopsis
  • Flos Trollii (FT) is a traditional Chinese herbal medicine known for its anti-inflammatory, antibacterial, antiviral, and antioxidative properties, used by various ethnic groups like Mongolian and Tibetan.
  • The study aimed to identify quality markers (Q-markers) for FT through a combination of pharmacological evaluation, flavor analysis, and advanced analytical techniques like near-infrared (NIR) spectroscopy.
  • Five key compounds were identified as Q-markers which influence the efficacy and flavor of FT, with a predictive model developed to quickly assess their content using NIR technology.
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The utilization of diagnostic-integrated molecules can enable targeted delivery and controlled release to significantly enhance therapeutic effectiveness and minimize toxic effects. Herein, we developed a novel class of glutathione (GSH)-activated bifunctional molecules that respond to elevated levels of GSH in tumor microenvironment. These bifunctional molecules retained the pharmacodynamic effects of parent molecules and mitigated cytotoxicity.

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Conventional tumor diagnosis and treatment approaches have significant limitations in clinical application, whereas personalized theranostistic nanoplatforms can ensure advanced diagnosis, precise treatment, and even a good prognosis in cancer. Tumor microenvironment (TME)-targeted therapeutic strategies offer absolute advantages in all aspects compared to tumor cell-targeted therapeutic strategies. It is essential to create a TME-responsive all-in-one nanotheranostic platform to facilitate individualized tumor treatment.

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Angiogenesis inhibitors and photosensitizers are pivotal in tumor clinical treatment, yet their utilization is constrained. Herein, eleven novel angiogenesis inhibitors were developed through hybridization strategy to overcome their clinical limitations. These title compounds boast excitation wavelengths within the "therapeutic window", enabling deep tissue penetration.

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Leukemia is a malignant clonal disease of hematopoietic stem cells, which accounts for about 3% of the total incidence of tumors and is particularly prevalent among children and adolescents. It mainly includes four types of leukemia, namely ALL, AML, CLL, and CML, which are often aggressive and challenging diseases to treat. Several signaling pathways are dysregulated in almost all types of leukemia, such as JAK, PI3K, and MAPK, and others are dysregulated in specific types of leukemia, like Wnt/β-catenin, Hedgehog, FLT3, Bcr-Abl, and so on.

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Immune checkpoint inhibitors targeting PD-L1 lead to challenging patterns of efficacy and toxicity. Herein, by focusing on tracing the molecular biomarker of response to efficacy, we formulated a central hypothesis for the construction of theranostic functional monoclonal antibody incorporation with tracing ability based on fluorescence turn-on and controllable release strategies. Functional atezolizumab was constructed by in situ assembly of both biorthogonal group and controllable release group.

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Proteolysis Targeting Chimera (PROTAC) is a type of bifunctional chimeric molecule that can directly degrade the binding proteins through the ubiquitin-proteasome pathway. PROTAC has shown great potential in overcoming drug resistance and targeting undruggable targets. However, there are still many shortcomings that need to be solved urgently, including worse membrane permeability and bioavailability induced by their large molecular weight.

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Bevacizumab is an FDA-approved class of monoclonal antibodies used to inhibit angiogenesis and promote normalization of blood vessels. It is usually combined with chemotherapeutic agents to treat a variety of solid tumors. However, the whole-body toxicities and toxicity associated with chemotherapy greatly limit the clinical use of this combination therapy.

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Discovery of novel PROTACs based on multi-targeted angiogenesis inhibitors.

Bioorg Med Chem Lett

May 2023

School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China. Electronic address:

Anti-angiogenesis has been proved to be an effective strategy for the treatment of tumors. Anti-angiogenic drugs had achieved certain therapeutic effects. However, drug resistance also gradually emerged and limited the application of angiogenesis inhibitors.

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In recent years, with improvements in treatments for heart failure (HF), the survival period of patients has been extended. However, the emergence of some patients with repeated hospitalizations due to their worsening conditions and low survival rates followed. Currently, few drugs are available for such patients.

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The complete chloroplast genome of Tibetan medicinal plant Maxim.

Mitochondrial DNA B Resour

March 2021

Qinghai Provincial Key Laboratory of Modernization of Traditional Chinese and Tibetan Medicine, Qinghai Provincial Drug Inspection and Testing Institute, Xining, China.

Maxim. is a traditional Tibetan medicine and widely used in the clinical pharmacology. In current study, the complete chloroplast genome of was reported.

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The complete chloroplast genome of the Tibetan medicinal plant .

Mitochondrial DNA B Resour

January 2021

Qinghai Provincial Key Laboratory of Modernization of Traditional Chinese and Tibetan Medicine, Qinghai Provincial Drug Inspection and Testing Institute, Xining, China.

is a widely used Tibetan medicine. Here, we report the complete sequence of the chloroplast genome of The genome was 150,896 bp in length with 131 genes comprising 85 protein-coding genes, 37 tRNA genes, 8 rRNA genes and 1 pseudogene, with 20 of them occurring in double copies. Phylogenomic analysis suggested that forms a clade with , , and in genus.

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