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1.
Int J Cancer ; 155(4): 646-653, 2024 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-38598851

RESUMEN

Nasopharyngeal carcinoma (NPC) has a unique geographic distribution. It is unknown whether meteorological factors are related to the incidence of NPC. To investigate the effect of ambient temperature, relative humidity (RH), and absolute humidity (AH) on the incidence of NPC, we collected the incidence rate of NPC in 2016 and meteorological data from 2006 to 2016 from 484 cities and counties across 31 provinces in China. Generalized additive models with quasi-Poisson regression and generalized linear models with natural cubic splines were employed respectively to elucidate the nonlinear relationships and specify the partial linear relationships. Subgroup and interactive analysis were also conducted. Temperature (R2 = 0.68, p < .001), RH (R2 = 0.47, p < .001), and AH (R2 = 0.70, p < .001) exhibited nonlinear correlations with NPC incidence rate. The risk of NPC incidence increased by 20.3% (95% confidence intervals [CI]: [18.9%, 21.7%]) per 1°C increase in temperature, by 6.3% (95% CI: [5.3%, 7.2%]) per 1% increase in RH, and by 32.2% (95% CI: [30.7%, 33.7%]) per 1 g/m3 increase in AH, between their the 25th and the 99th percentiles. In addition, the combination of low temperature and low RH was also related to increased risk (relative risk: 1.60, 95% CI: [1.18, 2.17]). Males and eastern or rural populations tended to be more vulnerable. In summary, this study suggests that ambient temperature, RH, and particularly AH are associated with the risk of NPC incidence.


Asunto(s)
Humedad , Carcinoma Nasofaríngeo , Neoplasias Nasofaríngeas , Temperatura , Humanos , China/epidemiología , Masculino , Incidencia , Carcinoma Nasofaríngeo/epidemiología , Carcinoma Nasofaríngeo/etiología , Femenino , Neoplasias Nasofaríngeas/epidemiología , Neoplasias Nasofaríngeas/etiología , Persona de Mediana Edad , Factores de Riesgo , Adulto
2.
Biomed Chromatogr ; 38(1): e5757, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37814466

RESUMEN

Nephrogenic edema (NE) is a type of edema with hypoproteinemia and water and sodium retention as a result of renal injury. Traditional Chinese medicine has proved that Scrophularia ningpoensis Hemsl. has an effect on NE, but its mechanism is not clear. In this study, the main components and blood components of S. ningpoensis were identified using ultra-high-performance liquid chromatography-quadrupole-time-of-flight-mass spectrometry (UPLC-Q-TOF-MS). Pathological section and blood biochemical analysis were used to estimate the therapeutic effect of S. ningpoensis on NE. Network pharmacology was used to predict the potential pathways of S. ningpoensis. The metabolomics method was used to study the changes in small-molecule metabolites in the body. The results showed that S. ningpoensis could relieve NE by regulating relative to renal function and body edema, and its mechanism may be related to the regulation of energy metabolism, recovery of renal injury, and reduction in inflammation. The active component harpagoside may be one of the important compounds of S. ningpoensis in the treatment of NE. We confirmed that S. ningpoensis has a therapeutic effect on NE, which provides a solid scientific research basis for the clinical application of S. ningpoensis.


Asunto(s)
Medicamentos Herbarios Chinos , Scrophularia , Scrophularia/química , Scrophularia/metabolismo , Medicina Tradicional China , Medicamentos Herbarios Chinos/química
3.
Planta ; 258(5): 100, 2023 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-37839056

RESUMEN

MAIN CONCLUSION: Auto-fluorescent condensed tannins specifically accumulated in mesophyll cells of non-salt secretor mangroves are involved in the compartmentation of Na+ and osmotic regulation, contributing to their salt tolerance. Salinity is a major abiotic stress affecting the distribution and growth of mangrove plants. The salt exclusion mechanism from salt secretor mangrove leaves is quite known; however, salt management strategies in non-salt secretor leaves remain unclear. In this study, we reported the auto-fluorescent inclusions (AFIs) specifically accumulated in mesophyll cells (MCs) of four non-salt secretor mangroves but absent in three salt secretors. The AFIs increased with the leaf development under natural condition, and applied NaCl concentrations applied in the lab. The AFIs in MCs were isolated and identified as condensed tannin accretions (CTAs) using the dye dimethyl-amino-cinnamaldehyde (DMACA), specific for condensed tannin (CT), both in situ leaf cross sections and in the purified AFIs. Fluorescence microscopy and transmission electron microscope (TEM) analysis indicated that the CTAs originated from the inflated chloroplasts. The CTAs had an obvious membrane and could induce changes in shape and fluorescence intensity in hypotonic and hypertonic NaCl solutions, suggesting CTAs might have osmotic regulation ability and play an important role in the osmotic regulation in MCs. The purified CTAs were labeled by the fluorescent sodium-binding benzofuran isophthalate acetoxymethyl ester (SBFI-AM), confirming they were involved in the compartmentation of excess Na+ in MCs. This study provided a new view on the salt resistance-associated strategies in mangroves.


Asunto(s)
Células del Mesófilo , Proantocianidinas , Tolerancia a la Sal , Cloruro de Sodio/farmacología , Hojas de la Planta/fisiología , Salinidad
4.
Fish Shellfish Immunol ; 134: 108583, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36740081

RESUMEN

Mitochondrial antiviral signaling protein (MAVS) is as an adaptor in RIG-I like receptor (RLR) signaling, which plays the key role in interferon (IFN) production during host antiviral innate immune activation. MAVS is fine tuned to avoid excess IFN production, which have been extensively studied in human and mammals. However, the regulation of MAVS in teleost still remains obscure. In this manuscript, we cloned ring finger protein 5 (bcRNF5) of black carp (Mylopharyngodon piceus) and characterized this teleost E3 ubiquitin ligase as a negative regulator of MAVS. The coding region of bcRNF5 consists of 615 nucleotides which encode 205 amino acids, containing two trans-membrane domain (TM) and a ring-finger domain (RING). The transcription regulation of bcRNF5 varies in host cells in response to stimulations of LPS, poly (I:C), grass carp reovirus (GCRV) and spring viremia of carp virus (SVCV). bcRNF5 migrates around 22 KDa in immunoblot (IB) assay and distributes mainly in cytoplasm by immunofluorescent (IF) staining test. Moreover, bcRNF5 significantly inhibits bcMAVS-mediated IFN promoter transcription. In addition, both IF and co-immunoprecipitation assay showed that bcRNF5 interacts with bcMAVS. Furthermore, bcMAVS-mediated antiviral ability is distinctly impaired by bcRNF5. Taken together, these results conclude that bcRNF5, as a negative regulator of the MAVS-mediated IFN signaling, may play a key role in host protection upon virus infection in black carp.


Asunto(s)
Carpas , Enfermedades de los Peces , Reoviridae , Animales , Humanos , Carpas/metabolismo , Reoviridae/fisiología , Inmunidad Innata , Ubiquitina-Proteína Ligasas , Antivirales , Proteínas de Peces , Mamíferos/metabolismo , Proteínas de Unión al ADN
5.
Fish Shellfish Immunol ; 136: 108706, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36965610

RESUMEN

Autophagy related 16 like 1 (ATG16L1) is a crucial component of autophagy that regulates the formation of the autophagosome. In mammals, ATG16L1 also performs important roles in immunity, including controlling viral replication and regulating innate immune signaling; however, investigation on the role of piscine ATG16L1 in immunity is rare. In this report, the ATG16L1 homolog of black carp Mylopharyngodon piceus (bcATG16L1) was cloned and identified, and its negative regulatory role in mitochondrial antiviral signaling protein (MAVS)-mediated antiviral signaling was described. The coding region of bcATG16L1 consists of 1830 nucleotides and encodes 609 amino acids, including one coiled-coil domain at the N-terminus, three low complexity region domains in the middle, and seven WD40 domains at the C-terminus. By immunofluorescence assay and immunoblotting, we found that bcATG16L1 is a cytosolic protein with a molecular weight of ∼74 kDa. In addition, over-expression of bcATG16L1 suppressed bcMAVS-mediated bcIFNa and DrIFNφ1 promoters transcriptional activity and inhibited bcMAVS-mediated antiviral activity. We further confirmed the co-localization of bcATG16L1 and bcMAVS by immunofluorescence assay and verified the protein interaction between bcATG16L1 and bcMAVS by immunoprecipitation assay. Our results report for the first time that black carp ATG16L1 suppresses MAVS-mediated antiviral signaling in teleost fish.


Asunto(s)
Carpas , Enfermedades de los Peces , Reoviridae , Infecciones por Rhabdoviridae , Rhabdoviridae , Animales , Carpas/genética , Carpas/metabolismo , Rhabdoviridae/fisiología , Reoviridae/fisiología , Secuencia de Aminoácidos , Inmunidad Innata/genética , Proteínas de Peces , Antivirales , Mamíferos/metabolismo
6.
Curr Microbiol ; 76(9): 1003-1009, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31183516

RESUMEN

The Burkholderia pyrrocinia Lyc2 strain isolated from healthy plant rhizosphere showed significant antimicrobial activities against a variety of plant pathogens. In this study, a random mutation library was constructed using an EZ-Tn5 transposome kit and Erwinia amylovora was used as an indicator to screen for mutants with defective antibacterial activity. The transposon gene was verified in the chromosome of the Lyc2 strain using polymerase chain reaction (PCR). The gene that was disrupted by transposon was amplified by rescue cloning for functional and bioinformatics analyses. Antibacterial analysis indicated that the mutant Lyc2-MT2918 was defective in antibacterial activity. Sequence alignment of the mutant suggested that the disrupted gene Glu-2918 was homologous to the glutathione (GSH) synthase gene Bamb-2918 of strain B. ambifaria AMMD. Genetic functional analysis and complementary assay of the disrupted gene, which was predicted to encode GSH synthase, indicated the essential role of the Glu-2918 gene in the antibacterial activity of strain Lyc2.


Asunto(s)
Antibacterianos/biosíntesis , Proteínas Bacterianas/genética , Burkholderia/genética , Clonación Molecular , Glutatión Sintasa/genética , Microbiología del Suelo , Proteínas Bacterianas/metabolismo , Burkholderia/clasificación , Burkholderia/aislamiento & purificación , Burkholderia/metabolismo , Biblioteca de Genes , Glutatión Sintasa/metabolismo , Mutagénesis Insercional , Mutación , Filogenia , Rizosfera
7.
J Lipid Res ; 59(2): 330-338, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-29229738

RESUMEN

Disregulation of fatty acid oxidation, one of the major mechanisms for maintaining hepatic lipid homeostasis under fasting conditions, leads to hepatic steatosis. Although obesity and type 2 diabetes-induced endoplasmic reticulum (ER) stress contribute to hepatic steatosis, it is largely unknown how ER stress regulates fatty acid oxidation. Here we show that fasting glucagon stimulates the dephosphorylation and nuclear translocation of histone deacetylase 5 (HDAC5), where it interacts with PPARα and promotes transcriptional activity of PPARα. As a result, overexpression of HDAC5 but not PPARα binding-deficient HDAC5 in liver improves lipid homeostasis, whereas RNAi-mediated knockdown of HDAC5 deteriorates hepatic steatosis. ER stress inhibits fatty acid oxidation gene expression via calcium/calmodulin-dependent protein kinase II-mediated phosphorylation of HDAC5. Most important, hepatic overexpression of a phosphorylation-deficient mutant HDAC5 2SA promotes hepatic fatty acid oxidation gene expression and protects against hepatic steatosis in mice fed a high-fat diet. We have identified HDAC5 as a novel mediator of hepatic fatty acid oxidation by fasting and ER stress signals, and strategies to promote HDAC5 dephosphorylation could serve as new tools for the treatment of obesity-associated hepatic steatosis.


Asunto(s)
Estrés del Retículo Endoplásmico , Ayuno/metabolismo , Ácidos Grasos/metabolismo , Histona Desacetilasas/metabolismo , Hígado/metabolismo , Animales , Masculino , Ratones , Ratones Endogámicos C57BL , Oxidación-Reducción
8.
Int J Mol Sci ; 16(6): 12014-34, 2015 May 26.
Artículo en Inglés | MEDLINE | ID: mdl-26016505

RESUMEN

Leptographium qinlingensis is a fungal associate of the Chinese white pine beetle (Dendroctonus armandi) and a pathogen of the Chinese white pine (Pinus armandi) that must overcome the terpenoid oleoresin defenses of host trees. L. qinlingensis responds to monoterpene flow with abundant mechanisms that include export and the use of these compounds as a carbon source. As one of the fungal cytochrome P450 proteins (CYPs), which play important roles in general metabolism, CYP51 (lanosterol 14-α demethylase) can catalyze the biosynthesis of ergosterol and is a target for antifungal drug. We have identified an L. qinlingensis CYP51F1 gene, and the phylogenetic analysis shows the highest homology with the 14-α-demethylase sequence from Grosmannia clavigera (a fungal associate of Dendroctonus ponderosae). The transcription level of CYP51F1 following treatment with terpenes and pine phloem extracts was upregulated, while using monoterpenes as the only carbon source led to the downregulation of CYP5F1 expression. The homology modeling structure of CYP51F1 is similar to the structure of the lanosterol 14-α demethylase protein of Saccharomyces cerevisiae YJM789, which has an N-terminal membrane helix 1 (MH1) and transmembrane helix 1 (TMH1). The minimal inhibitory concentrations (MIC) of terpenoid and azole fungicides (itraconazole (ITC)) and the docking of terpenoid molecules, lanosterol and ITC in the protein structure suggested that CYP51F1 may be inhibited by terpenoid molecules by competitive binding with azole fungicides.


Asunto(s)
Proteínas Fúngicas/química , Proteínas Fúngicas/genética , Saccharomycetales/enzimología , Esterol 14-Desmetilasa/química , Esterol 14-Desmetilasa/genética , Proteínas Fúngicas/efectos de los fármacos , Floema/química , Filogenia , Extractos Vegetales/química , Extractos Vegetales/farmacología , ARN de Hongos/efectos de los fármacos , ARN de Hongos/metabolismo , ARN Mensajero/efectos de los fármacos , ARN Mensajero/metabolismo , Saccharomycetales/efectos de los fármacos , Saccharomycetales/genética , Homología de Secuencia de Ácido Nucleico , Esterol 14-Desmetilasa/efectos de los fármacos , Homología Estructural de Proteína , Terpenos/farmacología
9.
Materials (Basel) ; 17(13)2024 Jul 05.
Artículo en Inglés | MEDLINE | ID: mdl-38998410

RESUMEN

Manganese oxides (MnxOy) are considered a promising cathode material for aqueous zinc-ion batteries (AZIBs) due to their high theoretical specific capacity, various oxidation states and crystal phases, and environmental friendliness. Nevertheless, their practical application is limited by their intrinsic poor conductivity, structural deterioration, and manganese dissolution resulting from Jahn-Teller distortion. To address these problems, doping engineering is thought to be a favorable modification strategy to optimize the structure, chemistry, and composition of the material and boost the electrochemical performance. In this review, the latest progress on doped MnxOy-based cathodes for AZIBs has been systematically summarized. The contents of this review are as follows: (1) the classification of MnxOy-based cathodes; (2) the energy storage mechanisms of MnxOy-based cathodes; (3) the synthesis route and role of doping engineering in MnxOy-based cathodes; and (4) the doped MnxOy-based cathodes for AZIBs. Finally, the development trends of MnxOy-based cathodes and AZIBs are described.

10.
Medicine (Baltimore) ; 103(34): e39271, 2024 Aug 23.
Artículo en Inglés | MEDLINE | ID: mdl-39183403

RESUMEN

RATIONALE: Triple-negative breast cancer is characterized by a worse prognosis compared with other breast cancer subtypes, especially in the case of pretreated metastatic triple-negative breast cancer (mTNBC). Because of the limited treatment options and suboptimal response rates, there is a pressing need to explore novel treatment protocols. PATIENT CONCERNS: A 48-year-old female patient diagnosed with mTNBC who had not responded to multiple lines of therapy (including surgery, chemotherapy, and radiotherapy) but demonstrated significant efficacy and abscopal effects after enrolling in our clinical trial. DIAGNOSES: Triple-negative breast cancer with lung metastases. INTERVENTIONS: The clinical trial combined stereotactic body radiotherapy, immunotherapy, granulocyte-macrophage colony-stimulating factor, and thymosin alpha-1 to treat previously treated metastatic solid cancers. OUTCOMES: This combined treatment regimen implemented in this clinical trial yielded the patient's notable efficacy, accompanied by abscopal effects. The target lesion and the 3 observed lesions achieved a partial response according to the RECIST v1.1 criteria. reevaluation scans after 2 cycles of immunotherapy indicated a regression rate of -78.97% for the target lesion and -56.73% for the observed lesions. Hematological indexes were stable, and there was no apparent myelosuppression. Also, the tumor marker CA-199 exhibited a downward trend. During the course of treatment, the patient experienced a grade 2 skin reaction, which improved after receiving antiallergic treatment. No further adverse effects were observed. LESSONS: This treatment regimen may offer a promising treatment strategy for patients with mTNBC and other metastatic solid cancers.


Asunto(s)
Factor Estimulante de Colonias de Granulocitos y Macrófagos , Neoplasias Pulmonares , Radiocirugia , Timalfasina , Neoplasias de la Mama Triple Negativas , Humanos , Femenino , Persona de Mediana Edad , Factor Estimulante de Colonias de Granulocitos y Macrófagos/uso terapéutico , Timalfasina/uso terapéutico , Radiocirugia/métodos , Neoplasias de la Mama Triple Negativas/patología , Neoplasias de la Mama Triple Negativas/tratamiento farmacológico , Neoplasias Pulmonares/secundario , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/patología , Inhibidores de Puntos de Control Inmunológico/uso terapéutico , Terapia Combinada
11.
Pest Manag Sci ; 80(3): 1107-1117, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37862262

RESUMEN

BACKGROUND: Chlorantraniliprole (CAP) is a diamide insecticide with high efficacy against many pest insects, including the black cutworm, Agrotis ipsilon. Agrotis ipsilon is a serious pest causing significant yield losses in crops. Glutathione-S-transferases (GSTs) belong to a family of metabolic enzymes that can detoxify a wide range of pesticides. However, little is known about the functions of GSTs in CAP tolerance in A. ipsilon. RESULTS: A cDNA sequence (designated AiGSTu1) encoding an unclassified GST was identified from A. ipsilon. AiGSTu1 is highly expressed during the 3rd -instar larval and the pupal stages. Most of the mRNA transcripts were found in larval Malpighian tubules. Exposure to CAP strongly enhanced AiGSTu1 expression, GST activity, hydrogen peroxide (H2 O2 ) and malondialdehyde levels in larvae. H2 O2 treatment upregulated the transcription level of AiGSTu1, suggesting that CAP-induced oxidative stress may activate AiGSTu1 expression. The activity of recombinant AiGSTu1 was inhibited by CAP in a dose-dependent manner. Metabolism assay results demonstrated that AiGSTu1 is capable of depleting CAP. Overexpression of AiGSTu1 enhanced the tolerance of Escherichia coli cells to H2 O2 and the oxidative stress inducer, cumene hydroperoxide. Silencing of AiGSTu1 by RNA interference increased the susceptibility of A. ipsilon larvae to CAP. CONCLUSION: The findings of this study provide valuable insights into the potential role of AiGSTu1 in CAP detoxification and will improve our understanding of CAP tolerance in A. ipsilon. © 2023 Society of Chemical Industry.


Asunto(s)
Glutatión Transferasa , Mariposas Nocturnas , ortoaminobenzoatos , Animales , Mariposas Nocturnas/genética , Larva , Glutatión
12.
Sci Rep ; 14(1): 71, 2024 01 02.
Artículo en Inglés | MEDLINE | ID: mdl-38168578

RESUMEN

The Asian ladybeetle, Coccinella septempunctata, is an important insect of predatory natural enemy, which has a strong control effect and application prospects for aphids, whiteflies, mealybugs, and other small-sized pests of agriculture and forestry crops. Gut microbiota composition posed impacts on development of insects. In order to clarify the effect of artificial feed feeding on the intestinal microbial species and structure of C. septempunctata, we compared the intestinal microbial flora of C. septempunctata reared on bean aphids and artificial food for 15 days. Results show that Proteobacteria was the dominant component in all groups at phylum level, Rhodobacter, Methylovigula, Burkholderia, and Bradyrhizobium were the dominant bacteria among all groups at genus level. As to the differences in bacterial community structure and diversity, there is no significant difference between Shannon index and Simpson index, the principal components analysis of the bacterial communities, and the samples were roughly distributed in different regions. After 15 days of feeding, artificial diet did not significantly reduce the microbial diversity of the gut of C. septempunctata compared to the aphid group, and there was no significant effect on the abundance of dominant flora in the gut of C. septempunctata, C. septempunctata gut has a similar core microbiota. This study clarifies the effects in intestinal microbial diversity and composition structure of the C. septempunctata with artificial diet, and provides a theoretical basis for understanding the intestinal microorganisms and optimizating the artificial diet of C. septempunctata.


Asunto(s)
Áfidos , Escarabajos , Microbioma Gastrointestinal , Animales , Insectos , Dieta , Bacterias
13.
ACS Appl Mater Interfaces ; 16(31): 41435-41449, 2024 Aug 07.
Artículo en Inglés | MEDLINE | ID: mdl-39069834

RESUMEN

Smart responsive materials are capable of responding to external stimuli and, compared to traditional materials, can be effectively reused and reduce usage costs in applications. However, smart responsive materials often face challenges such as the inability to repair extensive damage, instability in long-term performance, and inapplicability in extreme environments. This study combines 2D diamond nanosheets with organic fluorinated molecules to prepare a smart nanofluid (fluorinated diamond nanosheets, F-DN) with self-healing and self-adhesion properties. This smart nanofluid can be used to design various coatings for different applications. For example, coatings prepared on textured steel plates using the drop-casting method have excellent superhydrophobic and high oleophobic properties; coatings on titanium alloy plates achieve low friction and wear in the presence of lubricating additives of F-DN in perfluoropolyether (PFPE). Most impressively, coatings on steel plates not only provide effective corrosion resistance but also have the ability to self-heal significant damage (approximately 2 mm in width), withstand extremely low temperatures (-64 °C), and resist long-term corrosion factors (immersion in 3.5 wt % NaCl solution for 35 days). Additionally, it can act as a "coating glue" to repair extensive damage to other corrosion-resistant organic coatings and recover their original protective properties. Therefore, the smart nanofluid developed in this study offers diverse applications and presents new materials system for the future development of smart responsive materials.

14.
J Ethnopharmacol ; 324: 117736, 2024 Apr 24.
Artículo en Inglés | MEDLINE | ID: mdl-38242219

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: The genus Physalis L. (Solanaceae) is commonly used in the treatment of dermatitis, leprosy, bronchitis, pneumonia, hepatitis and rheumatism in China and other Asian countries. AIM OF THE REVIEW: This article reviews the resources, cultivation, phytochemistry, pharmacological properties, and applications of Physalis L., and proposes further research strategies to enhance its therapeutic potential in treating various human diseases. MATERIALS AND METHODS: We conducted a systematic search of electronic databases, including CNKI, SciFinder and PubMed, using the term "Physalis L." to collect information on the resources, phytochemistry, pharmacological activities, and applications of Physalis L. in China during the past ten years (2013.1-2023.1). RESULTS: So far, a variety of chemical constituents have been isolated and identified from Physalis L. mainly including steroids, flavonoids, and so on. Various pharmacological activities were evaluated by studying different extracts of Physalis L., these activities include anti-inflammatory, antibacterial, antioxidant, antiviral, antineoplastic, and other aspects. CONCLUSION: Physalis L. occupies an important position in the traditional medical system. It is cost-effective and is a significant plant with therapeutic applications in modern medicine. However, further in-depth studies are needed to determine the medical use of this plant resources and cultivation, chemical composition, pharmacological effects and applications.


Asunto(s)
Physalis , Fitoquímicos , Physalis/química , Humanos , Animales , Fitoquímicos/farmacología , Fitoquímicos/química , Fitoquímicos/aislamiento & purificación , Fitoterapia , Extractos Vegetales/farmacología , Extractos Vegetales/química , Extractos Vegetales/uso terapéutico , Etnofarmacología , Medicina Tradicional China
15.
J Ethnopharmacol ; 332: 118358, 2024 Oct 05.
Artículo en Inglés | MEDLINE | ID: mdl-38763370

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: The incidence of skin trauma is high and the repair process is complex, often leading to poor healing and other issues, which can result in significant economic and social burdens. Traditional Chinese medicine (TCM) is a valuable resource with proven effectiveness and safety in wound repair, widely utilized in clinical practice. A systematic analysis of wound healing with a focus on TCM research progress holds both academic and clinical importance. AIM OF THE REVIEW: This article reviews the research progress of TCM in promoting wound healing, and provides basic data for the development of innovative drugs that promote wound healing. MATERIALS AND METHODS: This article provides a review of the literature from the past decade and conducts a thorough analysis of various databases that contain reports on the use of TCM for wound repair. The data for this systematic research was gathered from electronic databases including CNKI, SciFinder, and PubMed. The study explores and summarizes the research findings and patterns by creating relevant charts. RESULTS: This study reviewed the mechanism of wound healing, experimental TCM methods to promote wound healing, the theory and mode of action of TCM to promote wound healing, the active ingredients of TCM that promote wound healing, the efficacy of TCM formulae to promote wound healing, and the potential toxicity of TCM and its antidotes. This study enriched the theory of TCM in promoting wound healing. CONCLUSION: Skin wound healing is a complex process that can be influenced by various internal and external factors. This article offers a theoretical foundation for exploring and utilizing TCM resources that enhance wound repair. By analyzing a range of TCM that promote wound healing, the article highlights the clinical importance and future potential of these medicines in promoting wound healing.


Asunto(s)
Medicamentos Herbarios Chinos , Medicina Tradicional China , Cicatrización de Heridas , Cicatrización de Heridas/efectos de los fármacos , Humanos , Medicina Tradicional China/métodos , Animales , Medicamentos Herbarios Chinos/farmacología , Medicamentos Herbarios Chinos/uso terapéutico
16.
Phytomedicine ; 130: 155345, 2024 Jul 25.
Artículo en Inglés | MEDLINE | ID: mdl-38810555

RESUMEN

BACKGROUND: Sepsis causes inflammation in response to infection, often leading to acute lung injury (ALI). Yazhicao (Commelina communis L., YZC) is widely distributed in the global tropics and has good anti-respiratory inflammatory activity; however, the protection of YZC against septic-ALI has not been established. PURPOSE: The role of YZC in septic-ALI will be investigated in this study. METHODS AND RESULTS: In this study, YZC was shown to inhibit excessive inflammation and alleviate septic-ALI. Network pharmacology predicts that Quercetin, Acacetin and Diosmetin have the potential to serve as the pharmacological substance basis of YZC in alleviating septic-ALI. The metabolomics results indicated that YZC could improve the metabolic disorders caused by septic-ALI, which were mostly concerned with energy metabolism and amino acid metabolism, with Trimethylamine (TMA)/Trimethylamine N-oxide (TMAO) being potential small molecule metabolic markers for the clinical diagnosis and treatment of septic-ALI. YZC inhibits the initiation and progression of septic-ALI by controlling the TMA/TMAO metabolites. Our results also suggest that YZC protects the intestinal barrier from damage. Furthermore, our research indicated that YZC reduces TMAO synthesis by inhibiting TMA production through remodeling the intestine microbiota. We investigated the mechanism of YZC-mediated protection against septic-ALI and showed that YZC reduced the expression of proteins associated with NLRP3 inflammatory vesicles in the lung by inhibiting the expression of NF-κB. CONCLUSION: These results show that YZC inhibits the NF-κB/NLRP3 signaling pathway by regulating metabolic and intestinal flora disorders in septic-ALI mice to reduce TMAO synthesis. This study presents a theoretical groundwork for the advancement of novel medications and clinical use of YZC to enhance septic-ALI and furnishes a theoretical rationale for regulating intestinal microbiota as a therapeutic instrument to treat sepsis and septic-ALI.


Asunto(s)
Lesión Pulmonar Aguda , Microbioma Gastrointestinal , Metabolómica , Metilaminas , Proteína con Dominio Pirina 3 de la Familia NLR , Sepsis , Transducción de Señal , Animales , Microbioma Gastrointestinal/efectos de los fármacos , Proteína con Dominio Pirina 3 de la Familia NLR/metabolismo , Transducción de Señal/efectos de los fármacos , Masculino , Sepsis/tratamiento farmacológico , Metilaminas/metabolismo , Ratones , Lesión Pulmonar Aguda/tratamiento farmacológico , Lesión Pulmonar Aguda/metabolismo , Ratones Endogámicos C57BL , Extractos Vegetales/farmacología , Modelos Animales de Enfermedad , Farmacología en Red
17.
Lancet Reg Health West Pac ; 48: 101067, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-39119238

RESUMEN

Background: The use of real-time continuous glucose monitoring (rtCGM) technology remains largely investigational in the hospital setting. The current study aimed to evaluate the effectiveness of rtCGM in inpatients with diabetes who were treated with short-term continuous subcutaneous insulin infusion (CSII). Methods: In this randomized, parallel controlled trial conducted on the endocrinology wards in a tertiary hospital located in Shanghai, adults with type 1 and type 2 diabetes who required short-term CSII during hospitalization were randomly assigned (1:1) to receive either rtCGM-based glucose monitoring and management program or point-of-care (POC) standard of care (8 times/day) with blinded CGM. Primary outcome measure was the difference in the percentage of time within the target glucose range of 3.9-10 mmol/L (TIR, %). This study was registered at www.chictr.org.cn (ChiCTR2300068933). Findings: Among the 475 randomized participants (237 in the rtCGM group and 238 in the POC group), the mean age of was 60 ± 13 years, and the mean baseline glycated hemoglobin level was 9.4 ± 1.8%. The CGM-recorded mean TIR was 71.1 ± 15.8% in the rtCGM group and 62.9 ± 18.9% in the POC group, with a mean difference of 8.2% (95% confidence interval [CI]: 5.1-11.4%, P < 0.001). The mean time above range >10 mmol/L was significantly lower in the rtCGM group than in the POC group (28.3 ± 15.8% vs. 36.6 ± 19.0%, P < 0.001), whereas there was no significant between-group difference in the time below range <3.9 mmol/L (P = 0.11). Moreover, the time to reach target glucose was significantly shorter in the rtCGM group than in the POC group (2.0 [1.0-4.0] days vs. 4.0 [2.0-5.0] days, P < 0.001). There were no serious adverse events in both groups. Interpretation: In patients with diabetes who received short-term CSII during hospitalization, the rtCGM program resulted in better glucose control than the POC standard of care, without increasing the risk of hypoglycemia. Funding: The Program of Shanghai Academic Research Leader (22XD1402300), Shanghai Oriental Talent Program (Youth Project) (No. NA), the Shanghai "Rising Stars of Medical Talent" Youth Development Program-Outstanding Youth Medical Talents (SHWSRS(2021)_099), and the Shanghai Research Center for Endocrine and Metabolic Diseases (2022ZZ01002).

18.
J Ethnopharmacol ; 319(Pt 3): 117250, 2024 Jan 30.
Artículo en Inglés | MEDLINE | ID: mdl-37832811

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: Based on the theory of traditional Chinese medicine (TCM), diabetic cardiomyopathy (DCM) belongs to the category of "Xiaoke disease" according to the symptoms, and "stasis-heat" is the main pathogenesis of DCM. The Chinese medicine Anemarrhena asphodeloides Bunge (AAB), as a representative of heat-clearing and engendering fluid, is often used clinically in the treatment of DCM. Anemarrhena asphodeloides Bunge total saponins (RATS) are the main bioactive components of AAB, the modern pharmacologic effects of RATS are anti-inflammatory, hypoglycemic, and cardioprotective. However, the potential protective mechanisms of RATS against DCM remain largely undiscovered. AIM OF THE STUDY: The primary goal of this study was to explore the effect of RATS on DCM and its mechanism of action. MATERIALS AND METHODS: Streptozotocin and a high-fat diet were used to induce DCM in rats. UHPLC/Q-TOF-MS was used to determine the chemical components of RATS. The degenerative alterations and apoptotic cells in the heart were assessed by HE staining and TUNEL. Network pharmacology was used to anticipate the probable targets and important pathways of RATS. The alterations in metabolites and main metabolic pathways in heart tissue were discovered using 1 H-NMR metabolomics. Ultimately, immunohistochemistry was used to find critical pathway protein expression. RESULTS: First of all, UHPLC/Q-TOF-MS analysis showed that RATS contained 11 active ingredients. In animal experiments, we found that RATS lowered blood glucose and lipid levels in DCM rats, and alleviated cardiac pathological damage, and decreased cardiomyocyte apoptosis. Furthermore, the study found that RATS effectively reduced inflammatory factor release and the level of oxidative stress. Mechanistically, RATS downregulated the expression levels of PI3K, AKT, HIF-1α, LDHA, and GLUT4 proteins. Additionally, glycolysis was discovered to be a crucial pathway for RATS in the therapy of DCM. CONCLUSIONS: Our findings suggest that the protective effect of RATS on DCM may be attributed to the inhibition of the PI3K/AKT/HIF-1α pathway and the correction of glycolytic metabolism.


Asunto(s)
Anemarrhena , Diabetes Mellitus , Cardiomiopatías Diabéticas , Saponinas , Animales , Cardiomiopatías Diabéticas/tratamiento farmacológico , Proteínas Proto-Oncogénicas c-akt/metabolismo , Fosfatidilinositol 3-Quinasas/metabolismo , Anemarrhena/química , Saponinas/farmacología , Saponinas/uso terapéutico , Saponinas/química , Glucólisis
19.
Nat Commun ; 15(1): 6477, 2024 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-39090085

RESUMEN

Protein-protein interactions (PPIs) stabilization with molecular glues plays a crucial role in drug discovery, albeit with significant challenges. In this study, we propose a dual-site approach, targeting the PPI region and its dynamic surroundings. We conduct molecular dynamics simulations to identify critical sites on the PPI that stabilize the cyclin-dependent kinase 12 - DNA damage-binding protein 1 (CDK12-DDB1) complex, resulting in further cyclin K degradation. This exploration leads to the creation of LL-K12-18, a dual-site molecular glue, which enhances the glue properties to augment degradation kinetics and efficiency. Notably, LL-K12-18 demonstrates strong inhibition of gene transcription and anti-proliferative effects in tumor cells, showing significant potency improvements in MDA-MB-231 (88-fold) and MDA-MB-468 cells (307-fold) when compared to its precursor compound SR-4835. These findings underscore the potential of dual-site approaches in disrupting CDK12 function and offer a structural insight-based framework for the design of cyclin K molecular glues.


Asunto(s)
Quinasas Ciclina-Dependientes , Unión Proteica , Humanos , Línea Celular Tumoral , Proliferación Celular , Quinasas Ciclina-Dependientes/metabolismo , Ciclinas , Proteínas de Unión al ADN/metabolismo , Proteínas de Unión al ADN/química , Simulación de Dinámica Molecular
20.
Micromachines (Basel) ; 14(10)2023 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-37893370

RESUMEN

Vertical light-emitting transistors (VLETs) consisting of vertically stacked unipolar transistors and organic light-emitting diodes (OLEDs) have been proposed as a prospective building block for display technologies. In addition to OLEDs, quantum-dot (QD) LEDs (QLEDs) with high brightness and high color purity have also become attractive light-emitting devices for display applications. However, few studies have attempted to integrate QLEDs into VLETs, as this not only involves technical issues such as compatible solution process of QDs and fine patterning of electrodes in multilayer stacked geometries but also requires a high driving current that is demanding on transistor design. Here we show that these integration issues of QLEDs can be addressed by using inorganic transistors with robust processability and high mobility, such as the studied ZnO transistor, which facilitates simple fabrication of QD VLETs (QVLETs) with efficient emission in the patterned channel area, suitable for high-resolution display applications. We perform a detailed optimization of QVLET by modifying ZnO:polyethylenimine nanocomposite as the electron injection layer (EIL) between the integrated ZnO transistor/QLED, and achieve the highest external quantum efficiency of ~3% and uniform emission in the patterned transistor channel. Furthermore, combined with a systematic study of corresponding QLEDs, electron-only diodes, and electroluminescence images, we provide a deeper understanding of the effect of EIL modification on current balance and distribution, and thus on QVLET performance.

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