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1.
Int J Nanomedicine ; 19: 6519-6546, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38957181

RESUMEN

Background: Salidroside (SAL) is the most effective component of Rhodiola rosea, a traditional Chinese medicine. Cryptotanshinone (CT) is the main fat-soluble extract of Salvia miltiorrhiza, exhibiting considerable potential for application in osteogenesis. Herein, a polycaprolactone/gelatin nanofiber membrane loaded with CT and SAL (PSGC membrane) was successfully fabricated via coaxial electrospinning and characterized. Methods and Results: This membrane capable of sustained and controlled drug release was employed in this study. Co-culturing the membrane with bone marrow mesenchymal stem cells and human umbilical vein endothelial cells revealed excellent biocompatibility and demonstrated osteogenic and angiogenic capabilities. Furthermore, drug release from the PSGC membrane activated the Wnt/ß-catenin signaling pathway and promoted osteogenic differentiation and vascularization. Evaluation of the membrane's vascularization and osteogenic capacities involved transplantation onto a rat's subcutaneous area and assessing rat cranium defects for bone regeneration, respectively. Microcomputed tomography, histological tests, immunohistochemistry, and immunofluorescence staining confirmed the membrane's outstanding angiogenic capacity two weeks post-operation, with a higher incidence of osteogenesis observed in rat cranial defects eight weeks post-surgery. Conclusion: Overall, the SAL- and CT-loaded coaxial electrospun nanofiber membrane synergistically enhances bone repair and regeneration.


Asunto(s)
Gelatina , Glucósidos , Células Endoteliales de la Vena Umbilical Humana , Células Madre Mesenquimatosas , Nanofibras , Neovascularización Fisiológica , Osteogénesis , Fenantrenos , Fenoles , Poliésteres , Ratas Sprague-Dawley , Osteogénesis/efectos de los fármacos , Animales , Nanofibras/química , Gelatina/química , Poliésteres/química , Glucósidos/química , Glucósidos/farmacología , Fenoles/química , Fenoles/farmacología , Fenantrenos/química , Fenantrenos/farmacología , Fenantrenos/farmacocinética , Fenantrenos/administración & dosificación , Humanos , Neovascularización Fisiológica/efectos de los fármacos , Células Endoteliales de la Vena Umbilical Humana/efectos de los fármacos , Células Madre Mesenquimatosas/efectos de los fármacos , Células Madre Mesenquimatosas/citología , Ratas , Masculino , Regeneración Ósea/efectos de los fármacos , Membranas Artificiales , Técnicas de Cocultivo , Liberación de Fármacos , Diferenciación Celular/efectos de los fármacos
2.
Sci Rep ; 14(1): 15083, 2024 07 02.
Artículo en Inglés | MEDLINE | ID: mdl-38956086

RESUMEN

The EMMY trial was a multicentre, investigator-initiated, placebo-controlled, double-blind trial, which enrolled 476 patients immediately following AMI and the first study demonstrating a significant reduction in NT-proBNP-levels as well as significant improvements in cardiac structure and function in patients after acute myocardial infarction treated with empagliflozin vs. placebo. However, hardly any data are available investigating the prognostic role of baseline electrocardiogram metrics in SGLT2-inhibitor-treated patients. This post-hoc analysis investigated the association of baseline ECG metrics collected in one centre of the trial (181 patients) with changes in structural and functional cardiac parameters as well as cardiac biomarkers in response to Empagliflozin treatment. A total of 181 patients (146 men; mean age 58 ± 14 years) were included. Median PQ-interval was 156 (IQR 144-174) milliseconds (ms), QRS width 92 (84-98) ms, QTc interval 453 (428-478) ms, Q-wave duration 45 (40-60) ms, Q-wave amplitude 0.40 (0.30-0.70) millivolt (mV), and heart rate was 71 (64-85) bpm. For functional cardiac parameters (LVEF and E/e') of the entire cohort, a greater decrease of E/e' from baseline to week 26 was observed in shorter QRS width (P = 0.005).Structural cardiac endpoints were only found to have a significant positive correlation between LVEDD and Q wave duration (P = 0.037). Higher heart rate was significantly correlated with better response in LVEF (P = 0.001), E/e' (P = 0.021), and NT-proBNP (P = 0.005). Empagliflozin-treatment showed no interaction with the results. Baseline ECG characteristics post AMI are neither predictive for beneficial NTproBNP effects of Empagliflozin post AMI, nor for functional or structural changes within 26 weeks post AMI.


Asunto(s)
Compuestos de Bencidrilo , Biomarcadores , Ecocardiografía , Electrocardiografía , Glucósidos , Infarto del Miocardio , Humanos , Compuestos de Bencidrilo/uso terapéutico , Glucósidos/uso terapéutico , Masculino , Persona de Mediana Edad , Femenino , Biomarcadores/sangre , Infarto del Miocardio/tratamiento farmacológico , Infarto del Miocardio/diagnóstico por imagen , Infarto del Miocardio/fisiopatología , Anciano , Método Doble Ciego , Péptido Natriurético Encefálico/sangre , Inhibidores del Cotransportador de Sodio-Glucosa 2/uso terapéutico , Fragmentos de Péptidos/sangre
4.
PLoS One ; 19(7): e0305343, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38968273

RESUMEN

BACKGROUND: Salidroside (SAL), the main component of Rhodiola rosea extract, is a flavonoid with biological activities, such as antioxidative stress, anti-inflammatory, and hypolipidemic. In this study, the potential therapeutic targets and mechanisms of SAL against oxidative stress in retinal ganglion cells (RGCs) were investigated on the basis of in-vitro experiments, network pharmacology, and molecular docking techniques. METHODS: RGC oxidative stress models were constructed, and cell activity, reactive oxygen species (ROS), and apoptosis levels were examined for differences. The genes corresponding to rhodopsin, RGCs, and oxidative stress were screened from GeneCards, TCMSP database, and an analysis platform. The intersection of the three was taken, and a Venn diagram was drawn. Protein interactions, GO functional enrichment, and KEGG pathway enrichment data were analyzed by STRING database, Cytohubba plugin, and Metascape database. The key factors in the screening pathway were validated using qRT-PCR. Finally, molecular docking prediction was performed using MOE 2019 software, molecular dynamic simulations was performed using Gromacs 2018 software. RESULTS: In the RGC oxidative stress model in vitro, the cell activity was enhanced, ROS was reduced, and apoptosis was decreased after SAL treatment. A total of 16 potential targets of oxidative stress in SAL RGCs were obtained, and the top 10 core targets were screened by network topology analysis. GO analysis showed that SAL retinal oxidative stress treatment mainly involved cellular response to stress, transcriptional regulatory complexes, and DNA-binding transcription factor binding. KEGG analysis showed that most genes were mainly enriched in multiple cancer pathways and signaling pathways in diabetic complications, nonalcoholic fatty liver, and lipid and atherosclerosis. Validation by PCR, molecular docking and molecular dynamic simulations revealed that SAL may attenuate oxidative stress and reduce apoptosis in RGCs by regulating SIRT1, NRF2, and NOS3. CONCLUSION: This study initially revealed the antioxidant therapeutic effects and molecular mechanisms of SAL on RGCs, providing a theoretical basis for subsequent studies.


Asunto(s)
Apoptosis , Glucósidos , Simulación del Acoplamiento Molecular , Farmacología en Red , Estrés Oxidativo , Fenoles , Especies Reactivas de Oxígeno , Células Ganglionares de la Retina , Estrés Oxidativo/efectos de los fármacos , Fenoles/farmacología , Fenoles/química , Células Ganglionares de la Retina/efectos de los fármacos , Células Ganglionares de la Retina/metabolismo , Glucósidos/farmacología , Glucósidos/química , Apoptosis/efectos de los fármacos , Especies Reactivas de Oxígeno/metabolismo , Animales , Ratas , Simulación de Dinámica Molecular , Antioxidantes/farmacología
5.
Cardiovasc Diabetol ; 23(1): 248, 2024 Jul 11.
Artículo en Inglés | MEDLINE | ID: mdl-38992713

RESUMEN

BACKGROUND: The effect of empagliflozin, a sodium-glucose-co-transporter-2 inhibitor, on risk for myocardial infarction has not been fully characterized. METHODS: This study comprised prespecified and post-hoc analyses of the EMPA-REG OUTCOME trial in which 7020 people with type 2 diabetes (T2D) and cardiovascular disease [mostly atherosclerotic (ASCVD)] were randomized to empagliflozin or placebo and followed for a median 3.1 years. We assessed the effect of empagliflozin on total (first plus recurrent) events of centrally adjudicated fatal and non-fatal myocardial infarction (MI) using a negative binomial model with robust confidence intervals (CI) that preserves randomization and accounts for the within-patient correlation of multiple events. Post hoc, we analyzed types of MI: type 1 (related to plaque-rupture/thrombus), type 2 (myocardial supply-demand imbalance), type 3 (sudden-death related, i.e. fatal MI), type 4 (percutaneous coronary intervention-related), and type 5 (coronary artery bypass graft-related). MIs could be assigned to > 1 type. RESULTS: There were 421 total MIs (including recurrent); 299, 86, 26, 19, and 1 were classified as type 1, 2, 3, 4, and 5 events, respectively. Overall, empagliflozin reduced the risk of total MI events by 21% [rate ratio for empagliflozin vs. placebo, 0.79 (95% CI, 0.620-0.998), P = 0.0486], largely driven by its effect on type 1 [rate ratio, 0.79 (95% CI, 0.61-1.04)] and type 2 MIs [rate ratio, 0.67 (95% CI, 0.41-1.10)]. CONCLUSIONS: In T2D patients with ASCVD, empagliflozin reduced the risk of MIs, with consistent effects across the two most common etiologies, i.e. type 1 and 2. TRAIL REGISTRATION: URL: https://www. CLINICALTRIALS: gov ; Unique identifier: NCT01131676.


Asunto(s)
Compuestos de Bencidrilo , Diabetes Mellitus Tipo 2 , Glucósidos , Infarto del Miocardio , Inhibidores del Cotransportador de Sodio-Glucosa 2 , Humanos , Glucósidos/uso terapéutico , Glucósidos/efectos adversos , Compuestos de Bencidrilo/uso terapéutico , Compuestos de Bencidrilo/efectos adversos , Infarto del Miocardio/mortalidad , Infarto del Miocardio/prevención & control , Infarto del Miocardio/diagnóstico , Infarto del Miocardio/epidemiología , Inhibidores del Cotransportador de Sodio-Glucosa 2/uso terapéutico , Inhibidores del Cotransportador de Sodio-Glucosa 2/efectos adversos , Masculino , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/mortalidad , Diabetes Mellitus Tipo 2/complicaciones , Resultado del Tratamiento , Femenino , Persona de Mediana Edad , Anciano , Factores de Tiempo , Medición de Riesgo , Factores de Riesgo , Recurrencia
9.
Am J Case Rep ; 25: e943945, 2024 Jul 10.
Artículo en Inglés | MEDLINE | ID: mdl-38985686

RESUMEN

BACKGROUND Sodium-glucose cotransporter 2 (SGLT2) inhibitors are used to improve the prognosis of patients with diabetes, heart failure, or chronic kidney disease. The use of SGLT2 inhibitors in patients without diabetes is expected to increase. Diabetic ketoacidosis is a severe complication of SGLT2 inhibitors in patients with diabetes. People without diabetes are thought to be less likely to develop ketoacidosis, and reports of SGLT2 inhibitor-induced ketoacidosis are uncommon in people without diabetes. CASE REPORT Herein, we describe a case of ketoacidosis in an 83-year-old Japanese woman without diabetes who was administered SGLT2 inhibitors for heart failure (ejection fraction: approximately 30%). Two weeks prior to admission, she had suffered a vertebral fracture and rib fracture due to a fall, which was followed by anorexia, but she continued to take SGLT2 inhibitors. On admission, blood test results revealed a blood glucose level of 124 mg/dL, hemoglobin A1C level of 5.9%, pH of 7.329, HCO3⁻ concentration of 14.3 mmol/L, and a ß-hydroxybutyrate concentration of 5150 µmol/L, leading to a diagnosis of euglycemic ketoacidosis. The patient's C-peptide level was consistent with the blood glucose levels on admission, indicating that she had adequate insulin secretion. The patient was treated only with glucose administration without insulin and was discharged after discontinuation of the SGLT2 inhibitor. CONCLUSIONS This case illustrates that patients with or without diabetes may develop SGLT2 inhibitor-related ketoacidosis after several days of inadequate food intake; therefore, patients should be informed of this risk.


Asunto(s)
Insuficiencia Cardíaca , Inhibidores del Cotransportador de Sodio-Glucosa 2 , Humanos , Femenino , Insuficiencia Cardíaca/inducido químicamente , Inhibidores del Cotransportador de Sodio-Glucosa 2/efectos adversos , Anciano de 80 o más Años , Cetosis/inducido químicamente , Glucósidos/efectos adversos , Cetoacidosis Diabética/inducido químicamente
10.
J Mass Spectrom ; 59(8): e5073, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38989767

RESUMEN

The fruits of Forsythia suspensa (F. suspensa) have been used as a traditional Chinese medicine for 2000 years. Currently, the quality control of F. suspensa strictly follows the instructions of Chinese Pharmacopeia, which mainly controls the content of forsythoside A, phillyrin, and volatile oil. In this study, air pressure MALDI mass spectrometry imaging (AP-MALDI MSI) was used to evaluate the quality of F. suspensa fruits and the distribution of dozens of active ingredients. The variation of active ingredients was measured for more than 30 batches of samples, regarding harvest time, cultivated environment, shelf-life, and habitat. Fifty-three active ingredients could be detected in F. suspensa fruits with AP-MALDI MSI. Seven active ingredients were upregulated, four ingredients downregulated, and 15 ingredients did not change in ripe fruits. A sharp variation of active ingredients in late September was observed for the Caochuan fruits harvested in 2019, which is closely related to the appearance of the ginger color of the pericarp under the microscope observation. The microscope observation is a reliable way to classify ripe and green fruits instead of outlook. Just considering forsythoside A and phillyrin, it is found that wild fruits are better than cultivated fruits, but cultivated fruits have high contents of other ingredients. The shelf-life of F. suspensa fruits is proposed to be 3 years, considering the 26 ingredients investigated. It was found that Luoning wild fruits are better than those from Caochuan with a new evaluation method. Mass spectrometry imaging is an easy, objective, and effective method to evaluate the quality of F. suspensa fruits.


Asunto(s)
Forsythia , Frutas , Glicósidos , Control de Calidad , Espectrometría de Masa por Láser de Matriz Asistida de Ionización Desorción , Forsythia/química , Espectrometría de Masa por Láser de Matriz Asistida de Ionización Desorción/métodos , Frutas/química , Glicósidos/análisis , Glucósidos/análisis , Medicamentos Herbarios Chinos/química , Medicamentos Herbarios Chinos/análisis , Aceites Volátiles/análisis , Aceites Volátiles/química
11.
Diabetes Res Clin Pract ; 213: 111764, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38960044

RESUMEN

AIMS: To investigate the effect of hyperglycemia and empagliflozin on cardiorenal injury and inflammation in patients with uncomplicated type 1 diabetes (T1D). METHODS: Serum cardiac (sST2, Gal-3, cTnT), kidney injury (KIM-1, NGAL), inflammatory (sTNFR1, sTNFR2), and hemodynamic (NT-proBNP, EPO) markers were assessed post-hoc in two separate T1D cohorts. The glycemic clamp trial (NCT02344602) evaluated 49 adults with T1D and 27 controls under euglycemic and acute hyperglycemic conditions. The crossover BETWEEN trial (NCT02632747) investigated empagliflozin 25 mg plus ramipril for 4 weeks compared to placebo-ramipril for 4 weeks in 30 adults with T1D. RESULTS: In the glycemic clamp study, hyperglycemia acutely increased levels of NT-proBNP (p = 0.0003) and sTNFR2 (p = 0.003). BETWEEN participants treated with empagliflozin exhibited a paradoxical subacute rise in NT-proBNP (p = 0.0147) compared to placebo, independent of hematocrit. Individuals with higher baseline levels of sST2 and sTNFR1 had greater empagliflozin-associated reductions in systolic blood pressure and greater activation of renin-angiotensin-aldosterone system (RAAS) mediators, whereas those with higher baseline levels of KIM-1 and sTNFR1 had greater glomerular filtration rate (GFR) dip. CONCLUSION: The protective mechanisms of SGLT2 inhibition on blood pressure, RAAS activation, and renal hemodynamics are apparent in the subset of people with uncomplicated T1D with adverse cardiorenal and inflammatory markers.


Asunto(s)
Compuestos de Bencidrilo , Biomarcadores , Diabetes Mellitus Tipo 1 , Glucósidos , Hiperglucemia , Inflamación , Humanos , Compuestos de Bencidrilo/uso terapéutico , Glucósidos/uso terapéutico , Diabetes Mellitus Tipo 1/tratamiento farmacológico , Diabetes Mellitus Tipo 1/complicaciones , Diabetes Mellitus Tipo 1/sangre , Masculino , Femenino , Biomarcadores/sangre , Adulto , Hiperglucemia/tratamiento farmacológico , Inflamación/tratamiento farmacológico , Inflamación/sangre , Persona de Mediana Edad , Estudios Cruzados , Inhibidores del Cotransportador de Sodio-Glucosa 2/uso terapéutico , Fragmentos de Péptidos , Péptido Natriurético Encefálico
12.
AAPS PharmSciTech ; 25(6): 163, 2024 Jul 13.
Artículo en Inglés | MEDLINE | ID: mdl-38997614

RESUMEN

Some glycoside drugs can be transported through intestinal glucose transporters (IGTs). The surfactants used in oral drug preparations can affect the function of transporter proteins. This study aimed to investigate the effect of commonly used surfactants, Poloxamer 188 and Tween 80, on the drug transport capacity of IGTs. Previous studies have shown that gastrodin is the optimal drug substrate for IGTs. Gastrodin was used as a probe drug to evaluate the effect of these two surfactants on intestinal absorption in SD rats through pharmacokinetic and in situ single-pass intestinal perfusion. Then, the effects of the two surfactants on the expression of glucose transporters and tight-junction proteins were examined using RT-PCR and western blotting. Additionally, the effect of surfactants on intestinal permeability was evaluated through hematoxylin-eosin staining. The results found that all experimental for Poloxamer 188 (0.5%, 2.0% and 8.0%) and Tween 80 (0.1% and 2.0%) were not significantly different from those of the blank group. However, the AUC(0-∞) of gastrodin increased by approximately 32% when 0.5% Tween 80 was used. The changes in IGT expression correlated with the intestinal absorption of gastrodin. A significant increase in the expression of IGTs was observed at 0.5% Tween 80. In conclusion, Poloxamer 188 had minimal effect on the drug transport capacity of IGTs within the recommended limits of use. However, the expression of IGTs increased in response to 0.5% Tween 80, which significantly enhanced the drug transport capacity of IGTs. However, 0.1% and 2.0% Tween 80 had no significant effect.


Asunto(s)
Absorción Intestinal , Mucosa Intestinal , Poloxámero , Polisorbatos , Ratas Sprague-Dawley , Tensoactivos , Animales , Poloxámero/farmacología , Polisorbatos/farmacología , Ratas , Absorción Intestinal/efectos de los fármacos , Masculino , Tensoactivos/farmacología , Transporte Biológico/efectos de los fármacos , Mucosa Intestinal/metabolismo , Mucosa Intestinal/efectos de los fármacos , Proteínas Facilitadoras del Transporte de la Glucosa/metabolismo , Glucósidos/farmacología
13.
Mol Biol Rep ; 51(1): 789, 2024 Jul 11.
Artículo en Inglés | MEDLINE | ID: mdl-38990383

RESUMEN

BACKGROUND: Syringin, a phenylpropanoid glycoside, has exhibited numerous biological properties including inhibitory activities against various immune and inflammatory disorders. In this study, syringin isolated from Tinospora crispa was evaluated for its ability to down-regulate activated nuclear factor-kappa B (NF-κB), phosphoinositide-3-kinase-Akt (PI3K-Akt) and mitogen-activated protein kinases (MAPKs) signal transducing networks in U937 macrophages activated by lipopolysaccharide. METHODS: The attenuating effects of syringin on the productions of prostaglandin E2 (PGE2), cyclooxygenase-2 (COX-2), interleukin-1ß (IL-1ß), and tumor necrosis factor-α (TNF-α), and the expressions of signaling molecules of the signaling pathways were investigated by using ELISA, Western blot, and qRT-PCR. RESULTS: Syringin downregulated the NF-κB, MAPKs, and PI3K-Akt signal networks by significantly reducing PGE2 production in the macrophages via suppression of COX-2 gene and protein expression levels. It also reduced TNF-α and IL-1ß secretion and their mRNA expression, suppressed phosphorylation of NF-κB (p65), IKKα/ß, and IκBα, and restored ability of IκBα to degrade. Syringin dose-dependently attenuated Akt, p38 MAPKs, JNK, and ERK phosphorylation. Also, the expression of corresponding upstream signaling molecules toll-like receptor 4 (TLR4) and myeloid differentiation primary response gene 88 (MyD88) were down-regulated in response to syringin treatment. CONCLUSION: The suppressive effect of syringin on the inflammatory signaling molecules in MyD88-dependent pathways suggested it's potential as a drug candidate for development into an agent for treatment of various immune-mediated inflammatory disorders.


Asunto(s)
Glucósidos , Lipopolisacáridos , Macrófagos , Factor 88 de Diferenciación Mieloide , FN-kappa B , Fenilpropionatos , Transducción de Señal , Tinospora , Humanos , Factor 88 de Diferenciación Mieloide/metabolismo , Macrófagos/efectos de los fármacos , Macrófagos/metabolismo , Lipopolisacáridos/farmacología , Transducción de Señal/efectos de los fármacos , Tinospora/química , Glucósidos/farmacología , Fenilpropionatos/farmacología , FN-kappa B/metabolismo , Células U937 , Dinoprostona/metabolismo , Interleucina-1beta/metabolismo , Regulación hacia Abajo/efectos de los fármacos , Ciclooxigenasa 2/metabolismo , Ciclooxigenasa 2/genética , Mediadores de Inflamación/metabolismo , Factor de Necrosis Tumoral alfa/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismo , Fosfatidilinositol 3-Quinasas/metabolismo , Receptor Toll-Like 4/metabolismo
14.
Rapid Commun Mass Spectrom ; 38(19): e9872, 2024 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-39044122

RESUMEN

RATIONALE: Eucommia cortex is the core herb in traditional Chinese medicine preparations for the treatment of osteoporosis. Pinoresinol diglucoside (PDG), the quality control marker and the key pharmacodynamic component in Eucommia cortex, has attracted global attention because of its definite effects on osteoporosis. However, the in vivo metabolic characteristics of PDG and its anti-osteoporotic mechanism are still unclear, restricting its development and application. METHODS: Ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry was used to analyze the metabolic characteristics of PDG in rats, and its anti-osteoporosis targets and mechanism were predicted using network pharmacology. RESULTS: A total of 51 metabolites were identified or tentatively characterized in rats after oral administration of PDG (10 mg/kg/day), including 9 in plasma, 28 in urine, 13 in feces, 10 in liver, 4 in heart, 3 in spleen, 11 in kidneys, and 5 in lungs. Furan-ring opening, dimethoxylation, glucuronidation, and sulfation were the main metabolic characteristics of PDG in vivo. The potential mechanism of PDG against osteoporosis was predicted using network pharmacology. PDG and its metabolites could regulate BCL2, MARK3, ALB, and IL6, involving PI3K-Akt signaling pathway, estrogen signaling pathway, and so on. CONCLUSIONS: This study was the first to demonstrate the metabolic characteristics of PDG in vivo and its potential anti-osteoporosis mechanism, providing the data for further pharmacological validation of PDG in the treatment of osteoporosis.


Asunto(s)
Lignanos , Farmacología en Red , Osteoporosis , Ratas Sprague-Dawley , Animales , Lignanos/farmacología , Lignanos/metabolismo , Osteoporosis/tratamiento farmacológico , Osteoporosis/metabolismo , Ratas , Cromatografía Líquida de Alta Presión/métodos , Masculino , Medicamentos Herbarios Chinos/farmacología , Medicamentos Herbarios Chinos/administración & dosificación , Medicamentos Herbarios Chinos/metabolismo , Medicamentos Herbarios Chinos/química , Metabolómica/métodos , Glucósidos/farmacología , Metaboloma/efectos de los fármacos , Espectrometría de Masas/métodos
15.
Cardiovasc Diabetol ; 23(1): 269, 2024 Jul 23.
Artículo en Inglés | MEDLINE | ID: mdl-39044275

RESUMEN

Heart failure with preserved ejection fraction (HFpEF) is a mortal clinical syndrome without effective therapies. Empagliflozin (EMPA) improves cardiovascular outcomes in HFpEF patients, but the underlying mechanism remains elusive. Here, mice were fed a high-fat diet (HFD) supplemented with L-NAME for 12 weeks and subsequently intraperitoneally injected with EMPA for another 4 weeks. A 4D-DIA proteomic assay was performed to detect protein changes in the failing hearts. We identified 310 differentially expressed proteins (DEPs) (ctrl vs. HFpEF group) and 173 DEPs (HFpEF vs. EMPA group). The regulation of immune system processes was enriched in all groups and the interferon response genes (STAT1, Ifit1, Ifi35 and Ifi47) were upregulated in HFpEF mice but downregulated after EMPA administration. In addition, EMPA treatment suppressed the increase in the levels of aging markers (p16 and p21) in HFpEF hearts. Further bioinformatics analysis verified STAT1 as the hub transcription factor during pathological changes in HFpEF mice. We next treated H9C2 cells with IFN-γ, a primary agonist of STAT1 phosphorylation, to investigate whether EMPA plays a beneficial role by blocking STAT1 activation. Our results showed that IFN-γ treatment caused cardiomyocyte senescence and STAT1 activation, which were inhibited by EMPA administration. Notably, STAT1 inhibition significantly reduced cellular senescence possibly by regulating STING expression. Our findings revealed that EMPA mitigates cardiac inflammation and aging in HFpEF mice by inhibiting STAT1 activation. The STAT1-STING axis may act as a pivotal mechanism in the pathogenesis of HFpEF, especially under inflammatory and aging conditions.


Asunto(s)
Compuestos de Bencidrilo , Senescencia Celular , Modelos Animales de Enfermedad , Glucósidos , Insuficiencia Cardíaca , Proteínas de la Membrana , Ratones Endogámicos C57BL , Miocitos Cardíacos , Factor de Transcripción STAT1 , Transducción de Señal , Inhibidores del Cotransportador de Sodio-Glucosa 2 , Volumen Sistólico , Función Ventricular Izquierda , Animales , Factor de Transcripción STAT1/metabolismo , Insuficiencia Cardíaca/metabolismo , Insuficiencia Cardíaca/fisiopatología , Insuficiencia Cardíaca/prevención & control , Insuficiencia Cardíaca/tratamiento farmacológico , Insuficiencia Cardíaca/patología , Compuestos de Bencidrilo/farmacología , Glucósidos/farmacología , Senescencia Celular/efectos de los fármacos , Transducción de Señal/efectos de los fármacos , Inhibidores del Cotransportador de Sodio-Glucosa 2/farmacología , Miocitos Cardíacos/efectos de los fármacos , Miocitos Cardíacos/metabolismo , Miocitos Cardíacos/patología , Masculino , Volumen Sistólico/efectos de los fármacos , Función Ventricular Izquierda/efectos de los fármacos , Proteínas de la Membrana/metabolismo , Proteínas de la Membrana/genética , Línea Celular , Interferón gamma/metabolismo , Fosforilación , Ratones
16.
J Med Life ; 17(3): 281-285, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-39044933

RESUMEN

Dapagliflozin is a pharmacological drug commonly used to manage type 2 diabetes by inhibiting the sodium-glucose cotransporter in the proximal renal tubules. The primary objective of this research was to develop a topical ointment formulation containing dapagliflozin and assess its efficacy in treating psoriasis using an imiquimod-induced psoriasis model. A total of 16 Swiss albino mice, with weights ranging from 24 to 30 grams, were allocated randomly into six groups, each group including ten animals. The study assessed the effects of various concentrations of dapagliflozin ointment on levels of tumor necrosis factor-alpha (TNF-alpha), interleukin-8 (IL-8), IL-17, and IL-37, as well as on erythema, scaling, and epidermal thickness. Dapagliflozin ointment significantly reduced these cytokine levels and disease scores, indicating anti-psoriatic and anti-inflammatory properties. Therefore, when applied topically, dapagliflozin ointment had strong efficacy against imiquimod-induced psoriatic skin inflammation, suggesting its potential as a novel therapeutic option for psoriasis treatment.


Asunto(s)
Compuestos de Bencidrilo , Modelos Animales de Enfermedad , Glucósidos , Imiquimod , Pomadas , Psoriasis , Psoriasis/tratamiento farmacológico , Psoriasis/inducido químicamente , Psoriasis/patología , Animales , Glucósidos/farmacología , Glucósidos/uso terapéutico , Glucósidos/administración & dosificación , Ratones , Compuestos de Bencidrilo/farmacología , Citocinas/metabolismo , Masculino
17.
Clin Exp Pharmacol Physiol ; 51(9): e13909, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39038854

RESUMEN

Diabetic kidney disease (DKD) is a complication of diabetic mellitus. New treatments need to be developed. This study aimed to investigate the effects of quercetin-4'-O-ß-D-glucopyranoside (QODG) on podocyte injury. Podocytes were cultured in high glucose (HG) medium, treated with QODG, and overexpressing or knocking down SIRT5. Oxidative stress indicators were assessed using corresponding kits. Pyroptosis was detected by flow cytometry and western blot analysis. Succinylation modification was detected using immunoprecipitation (IP) and western blot analysis. The interaction between NEK7 and NLRP3 was determined by co-IP. The results indicated that QODG inhibited oxidative stress and pyroptosis of podocytes induced by HG. Besides, QODG suppressed succinylation levels in HG-induced podocytes, with the upregulation of SIRT5. Knockdown of SIRT5 reversed the effects of QODG on oxidative stress and pyroptosis. Moreover, SIRT5 inhibited the succinylation of NEK7 and the interaction between NLRP3 and NEK7. In conclusion, QODG upregulates SIRT5 to inhibit the succinylation modification of NEK7, impedes the interaction between NEK7 and NLRP3, and then inhibits the pyroptosis and oxidative stress injury of podocytes under HG conditions. The findings suggested that QODG has the potential to treat DKD and explore a novel underlying mechanism of QODG function.


Asunto(s)
Quinasas Relacionadas con NIMA , Podocitos , Sirtuinas , Podocitos/efectos de los fármacos , Podocitos/metabolismo , Podocitos/patología , Quinasas Relacionadas con NIMA/metabolismo , Sirtuinas/metabolismo , Sirtuinas/genética , Animales , Ratones , Estrés Oxidativo/efectos de los fármacos , Piroptosis/efectos de los fármacos , Proteína con Dominio Pirina 3 de la Familia NLR/metabolismo , Glucósidos/farmacología , Línea Celular
18.
J Agric Food Chem ; 72(29): 16438-16448, 2024 Jul 24.
Artículo en Inglés | MEDLINE | ID: mdl-38981019

RESUMEN

Steviol glycosides (SGs) are a natural sweetener widely used in the food and beverage industry, but the low solubility and stability of SG aqueous solutions greatly limit their application performance, especially in liquid formulations. In this work, we explore the solubility behavior of rebaudioside A (Reb A) in water, a major component of SGs, with the aim of clarifying the underlying mechanisms of the solubility and stability constraints of SGs, as well as the impact on their multifunctional properties. We demonstrate for the first time that Reb A exhibits hierarchical self-assembly in solutions, forming spherical micelles first when the concentration exceeds its critical micelle concentration (5.071 mg/mL), which then further assemble into large rod-like aggregates. The formation of such large Reb A aggregates is mainly dominated by hydrogen bonding and short-range Coulomb interaction energy, thus leading to the low solubility and precipitation of Reb A solutions. Surprisingly, aggregated Reb A structures display significantly improved organoleptic properties, revealing that self-aggregation can be developed as a simple, efficient, and green strategy for improving the taste profile of SGs. Additionally, the self-aggregation of Reb A at high concentrations impairs active encapsulation and also affects its interfacial and emulsifying properties.


Asunto(s)
Diterpenos de Tipo Kaurano , Glicósidos , Solubilidad , Edulcorantes , Diterpenos de Tipo Kaurano/química , Edulcorantes/química , Glicósidos/química , Agua/química , Micelas , Enlace de Hidrógeno , Gusto , Glucósidos/química , Stevia/química , Soluciones/química
19.
J Agric Food Chem ; 72(29): 16484-16495, 2024 Jul 24.
Artículo en Inglés | MEDLINE | ID: mdl-38990698

RESUMEN

As a food contaminant that can be quickly absorbed through the gastrointestinal system, furan has been shown to disrupt the intestinal flora and barrier. Investigation of the intestinal toxicity mechanism of furan is of great significance to health. We previously identified the regulatory impact of salidroside (SAL) against furan-provoked intestinal damage, and the present work further explored whether the alleviating effect of SAL against furan-caused intestinal injury was based on the intestinal flora; three models, normal, pseudo-germ-free, and fecal microbiota transplantation (FMT), were established, and the changes in intestinal morphology, barrier, and inflammation were observed. Moreover, 16S rDNA sequencing observed the variation of the fecal flora associated with inflammation and short-chain fatty acids (SCFAs). Results obtained from the LC-MS/MS suggested that SAL increased furan-inhibited SCFA levels, activated the mRNA expressions of SCFA receptors (GPR41, GPR43, and GPR109A), and inhibited the furan-activated TLR4/MyD88/NF-κB signaling. Analysis of protein-protein interaction further confirmed the aforementioned effects of SAL, which inhibited furan-induced barrier damage and intestinal inflammation.


Asunto(s)
Bacterias , Ácidos Grasos Volátiles , Furanos , Microbioma Gastrointestinal , Glucósidos , Fenoles , Transducción de Señal , Receptor Toll-Like 4 , Microbioma Gastrointestinal/efectos de los fármacos , Glucósidos/farmacología , Fenoles/farmacología , Receptor Toll-Like 4/metabolismo , Receptor Toll-Like 4/genética , Animales , Transducción de Señal/efectos de los fármacos , Furanos/farmacología , Masculino , Ácidos Grasos Volátiles/metabolismo , Humanos , Ratones , Bacterias/genética , Bacterias/clasificación , Bacterias/aislamiento & purificación , Bacterias/metabolismo , Bacterias/efectos de los fármacos , Mucosa Intestinal/metabolismo , Mucosa Intestinal/efectos de los fármacos , FN-kappa B/metabolismo , FN-kappa B/genética , Rhodiola/química , Inflamación/metabolismo , Inflamación/tratamiento farmacológico , Ratones Endogámicos C57BL
20.
Zhongguo Zhong Yao Za Zhi ; 49(12): 3229-3241, 2024 Jun.
Artículo en Chino | MEDLINE | ID: mdl-39041084

RESUMEN

Reyanning Mixture is one of the superior Chinese patent medicine varieties of "Qin medicine". Based on the idea of quality by design(QbD), the extraction process of the Reyanning Mixture was optimized. The caffeic acid, polydatin, resveratrol, and emodin were used as critical quality attributes(CQAs). The material-liquid ratio, extraction temperature, and extraction time were taken as critical process parameters(CPPs) by the Plackett-Burman test. The mathematical model was established by the star design-effect surface method, and the design space was constructed and verified. The optimal extraction process of the Reyanning Mixture was obtained as follows: material-liquid ratio of 11.84 g·mL~(-1), extraction temperature at 81 ℃, and two extractions. A partial least-square(PLS) quantitative model for CQAs was established by using near-infrared spectroscopy(NIRS) combined with high-performance liquid chromatography(HPLC) under the optimal extraction process. The results showed that the correlation coefficients of the correction set(R_c) and validation set(R_p) of the quantitative models of four CQAs were more than 0.9. The root mean square error of the correction set(RMSEC) were 0.744, 6.71, 3.95, and 1.53 µg·mL~(-1), respectively, and the root mean square error of the validation set(RMSEP) were 0.709, 5.88, 2.92, and 1.59 µg·mL~(-1), respectively. Therefore, the optimized extraction process of the Reyanning Mixture is reasonable, feasible, stable, and reliable. The NIRS quantitative model has a good prediction, which can be used for the rapid content determination of CQAs during extraction. They can provide an experimental basis for the process research and quality control of Reyanning Mixture.


Asunto(s)
Medicamentos Herbarios Chinos , Medicamentos Herbarios Chinos/química , Medicamentos Herbarios Chinos/normas , Medicamentos Herbarios Chinos/análisis , Cromatografía Líquida de Alta Presión , Control de Calidad , Espectroscopía Infrarroja Corta/métodos , Temperatura , Glucósidos/análisis , Glucósidos/química , Ácidos Cafeicos
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