The bioactive components of chrysanthemum tea are an essential indicator in evaluating its nutritive and commercial values. Combining hyperspectral imaging (HSI) with key wavelength selection and pattern recognition methods, this study developed a novel approach to estimating the content of bioactive components in chrysanthemums, including the total flavonoids (TFs) and chlorogenic acids (TCAs). To determine the informative wavelengths of hyperspectral images, we introduced a variable similarity regularization term into particle swarm optimization (denoted as VSPSO), which can focus on improving the combinatorial performance of key wavelengths and filtering out the features with higher collinearity simultaneously.
View Article and Find Full Text PDFBackground: Arnebiae Radix has long been used in traditional medicine for its pleiotropic properties. However, distinguishing Arnebiae Radix from its substitutes or closely related species has been challenging due to limited phenotypic characteristics.
Purpose: We aimed to identify the molecular markers for distinguishing Arnebiae Radix from its confusion species.
Zhongguo Zhong Yao Za Zhi
September 2024
Ultra-high performance liquid chromatography with quadrupole time-of-flight mass spectrometry(UPLC-Q-TOF-MS), UNIFI software, and a self-built compound library of Longxuejie Capsules were employed to analyze the pharmacodynamic substances of Longxuejie Capsules and the metabolites in rats. The methanol extracts of capsule contents as well as the plasma, urine, and fecal metabolites of rats after drug administration were prepared. Data were collected in both positive and negative MS~E Continuum scan modes via UPLC-Q-TOF-MS.
View Article and Find Full Text PDFBackground: The subtypes diagnosis of disease symptom clusters, grounded in the theory of "Treatment in Accordance with Three Categories of Etiologic Factors" and International Classification of Diseases 11th Revision (ICD-11), is a vital strategy for Chinese Medicine (CM) in treating unknown respiratory infectious diseases. However, the classification of disease symptom clusters continues to depend on empirical observations and lacks robust scientific evidence. Consequently, this study seeks to explore the temporal, spatial and demographic distributions characteristics of Corona Virus Disease 2019 (COVID-19) symptom clusters in China.
View Article and Find Full Text PDFThe pharmacological effects of traditional Chinese medicine (TCM) are closely associated with the processing procedures, which involve a multitude of intricate chemical reactions. Real-time monitoring of the dynamic changes in chemical constituents during TCM processing plays a pivotal role in ensuring quality control of TCM products. Herein, a neutral desorption atmospheric pressure chemical ionization mass spectrometry (ND-APCI-MS) method was developed for online monitoring of the TCM processing.
View Article and Find Full Text PDFCancer treatment has witnessed revolutionary advancements marked by the emergence of immunotherapy, specifically immune checkpoint blockade (ICB). However, the inherent low immunogenicity of tumor cells and the intricate immunosuppressive network within the tumor microenvironment (TME) pose significant challenges to the further development of immunotherapy. Nanotechnology has ushered in unprecedented opportunities and vast prospects for tumor immunotherapy.
View Article and Find Full Text PDFCytochrome P450 enzymes play a crucial role as catalysts in the biosynthesis of numerous plant natural products (PNPs). Enhancing the catalytic activity of P450s in host microorganisms is essential for the efficient production of PNPs through synthetic biology. In this study, we engineered to optimize the microenvironment for boosting the activities of P450s, including coexpression with the redox partner genes, enhancing NADPH supply, expanding the endoplasmic reticulum (ER), strengthening heme biosynthesis, and regulating iron uptake.
View Article and Find Full Text PDFBiochim Biophys Acta Rev Cancer
November 2024
Cancer remains one of the most difficult human diseases to overcome because of its complexity and diversity. Signal transducers and transcriptional activators 3 (STAT3) protein has been found to be overexpressed in a wide range of cancer types. Hyperactivation of STAT3 is particularly associated with low survival in cancer patients.
View Article and Find Full Text PDFArmillaria root diseases, caused by Armillaria spp., pose a significant threat to woody plants worldwide and result in substantial economic losses. However, certain species in the genus Armillaria can establish a unique symbiotic relationship with Gastrodia elata, which is the only known example of a plant benefiting from Armillaria.
View Article and Find Full Text PDFImageGP is an extensively utilized, open-access platform for online data visualization and analysis. Over the past 7 years, it has catered to more than 700,000 usages globally, garnering substantial user feedback. The updated version, ImageGP 2 (available at https://www.
View Article and Find Full Text PDFThe MYB transcription factor (TF) family is one of the largest families in plants and performs highly diverse regulatory functions, particularly in relation to pathogen/pest resistance, nutrient/noxious substance absorption, drought/salt resistance, trichome growth, stamen development, leaf senescence, and flavonoid/terpenoid biosynthesis. Owing to their vital role in various biological regulatory processes, the mechanisms of MYB TFs have been extensively studied. Notably, MYB TFs not only directly regulate targets, such as phytohormones, reactive oxygen species signaling and secondary cell wall formation, but also serve as crucial points of crosstalk between these signaling networks.
View Article and Find Full Text PDFThe root of pall. is a significant component of traditional Chinese medicine, with terpenoids and their glycosides, such as paeoniflorins, serving as key active ingredients known for their anti-inflammatory, hepatoprotective, and analgesic properties. By generating a transcriptome and functionally characterizing 32 terpene synthases (TPSs) from , we successfully constructed 24 pESC-Trp-PlTPS expression vectors.
View Article and Find Full Text PDFProtoberberine alkaloids and benzophenanthridine alkaloids (BZDAs) are subgroups of benzylisoquinoline alkaloids (BIAs), which represent a diverse class of plant-specialized natural metabolites with many pharmacological properties. Microbial biosynthesis has been allowed for accessibility and scalable production of high-value BIAs. Here, we engineer Saccharomyces cerevisiae to de novo produce a series of protoberberines and BZDAs, including palmatine, berberine, chelerythrine, sanguinarine and chelirubine.
View Article and Find Full Text PDFMoxa wool (MW), derived from the dried leaves of , plays a significant role in traditional Chinese medicine. However, the quality of MW varies with its storage period, impacting its therapeutic efficacy. Traditional methods for quality detection are limited and destructive.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
September 2024
Zhongguo Zhong Yao Za Zhi
August 2024
Zhongguo Zhong Yao Za Zhi
August 2024
Based on the research results and development trend of modern life sciences, our team first proposed in 2020 that Dao-di herbs had the characteristics of "excellent shape, high quality, and superior effect", which broadened the scope of traditional medicinal herb description. In recent years, with the gradual deepening of the research on the natural, material, and medicinal properties of Dao-di herbs in traditional Chinese medicine(TCM), the scientific connotation of "excellent shape, high quality, and superior effect" of Dao-di herbs has been enriched. "High quality" is mainly embodied in the fact that Dao-di herbs have a "unique chemotype", which can be used as the material basis of "superior effect" and can participate in regulating the formation of "excellent shape".
View Article and Find Full Text PDFNotoginsenosides are important bioactive compounds from (Burk.) F. H.
View Article and Find Full Text PDFThe nucleolus, a recognized biomolecular condensate, serves as the hub for ribosome biogenesis within the cell nucleus. Its quantity and morphology are discernible indicators of cellular functional states. However, precise identification and quantification of nucleoli remain challenging without specific labeling, particularly for suspended cells, tissue-level analysis and high-throughput applications.
View Article and Find Full Text PDFBackground: Continuous monocropping obstacles are common in plants, especially medicinal plants, resulting in disease outbreaks and productivity reductions. Foliar disease, mainly caused by Fusarium oxysporum, results in a severe decrease in the yield of Pseudostellaria heterophylla annually. Determining an effective biomethod to alleviate this disease is urgently needed to improve its productivity and quality.
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