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1.
Int J Sport Nutr Exerc Metab ; 34(1): 54-64, 2024 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-38039960

RESUMEN

Precise protein supplementation strategies for muscle improvement are still lacking. The timing or type of protein supplementation has been debated as a window of opportunity to improve muscle mass, strength, and physical performance. We conducted a network meta-analysis of randomized controlled trials with protein supplements and resistance training. PubMed, Web of Science, Cochrane Library, and SPORTDiscus databases were searched until May 1, 2023. We included 116 eligible trials with 4,711 participants that reported on 11 timing and 14 types of protein supplementation. Compared with placebo, protein supplementation after exercise (mean difference [MD]: 0.54 kg [95% confidence intervals 0.10, 0.99] for fat-free mass, MD: 0.34 kg [95% confidence intervals 0.10, 0.58] for skeletal muscle mass) and at night (MD: 2.85 kg [0.49, 5.22] for handgrip strength, MD: 12.12 kg [3.26, 20.99] for leg press strength) was most effective in improving muscle mass and strength, respectively (moderate certainty). Milk proteins (milk, whey protein, yogurt, casein, and bovine colostrum), red meat, and mixed protein were effective for gains in both muscle mass and strength (moderate certainty). No timing or type of protein showed a significant enhancement in physical performance (timed up-to-go test, 6-min walk test, and gait speed). Pre/postexercise and Night are key recommended times of protein intake to increase muscle mass and strength, respectively. Milk proteins are the preferred types of protein supplements for improving muscle mass and strength. Future randomized controlled trials that directly compare the effects of protein timing or types are needed. This trial was registered at International Prospective Register of Systematic Reviews as CRD42022358766.


Asunto(s)
Músculo Esquelético , Entrenamiento de Fuerza , Adulto , Humanos , Animales , Bovinos , Músculo Esquelético/fisiología , Fuerza Muscular/fisiología , Fuerza de la Mano , Metaanálisis en Red , Revisiones Sistemáticas como Asunto , Suplementos Dietéticos , Rendimiento Físico Funcional , Proteínas de la Leche
2.
PLoS One ; 18(10): e0293181, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37871022

RESUMEN

Plum Rains Season (PRS) has the typical characteristics of outdoor air temperature dramatic changes and high air humidity in the hot summer and cold winter region in China. When the outdoor temperature rises rapidly during PRS, the building envelope surface temperature is probably lower than the indoor air dew point temperature, resulting in moisture condensation. This paper evaluates the influence of geographical location and outdoor meteorological parameters on the indoor humidity environment. The effects of critical parameters such as altitude, average temperature, relative humidity, total precipitation, total precipitation days, atmospheric pressure, and wind speed on the building envelope moisture condensation in nine typical cities in the hot summer and cold winter region were simulated and analyzed. The results show that the Condensation Frequency (CFn) in the western, central, and eastern regions reached the highest in April, May, and June, respectively. Among the nine typical cities, Changsha has the highest Condensation Risk (CR). In addition, the altitude, total precipitation, and atmospheric pressure have little effect on the indoor humidity environment, and it is not directly related to CR; The average temperature and total precipitation days were not related to CR in the western and eastern regions and positively correlated with CR in the central region; The wind speed was positively correlated with CR in the western and central regions and negatively correlated in the eastern region; The relative humidity can affect the indoor humidity environment and moisture condensation on the inner surface of walls, when the relative humidity increases, the CR increases.


Asunto(s)
Contaminantes Atmosféricos , Prunus domestica , Estaciones del Año , Contaminantes Atmosféricos/análisis , Humedad , Temperatura , China , Lluvia
3.
Altern Ther Health Med ; 29(7): 126-132, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37442185

RESUMEN

Objective: To summarize the use of traditional Chinese medicine in the treatment of meibomian gland dysfunction-related dry eye disease through data mining. Additionally, it aims to explore the signaling pathways and mechanisms of critical drugs used in the treatment of this condition through network pharmacology analysis. Methods: Clinical trial literature on the topical application of traditional Chinese medicine for meibomian gland dysfunction-related dry eye disease in the past 20 years was collected from Chinese academic databases (Zhiwang, Wanfang Data, and Weipu). Association rule analysis and clustering analysis were performed using IBM SPSS. Active ingredients and target sites of critical drugs were obtained from the TCSMP and BATMAN-TCM databases. Disease target sites were sourced from databases such as DrugBank and OMIM. The drug-disease intersecting target genes were used to construct a protein-protein interaction (PPI) network in the String database. Common target genes were subjected to GO function and KEGG signaling pathway enrichment analyses using the DAVID platform. The molecular docking of active ingredients and key targets was validated using AutoDock Vina (1.1.2). Results: A total of 93 Chinese herbal medicines in 56 prescriptions were collected. The critical drugs identified were flos chrysanthemi, flos lonicerae japonicae, fructus forsythiae, radix scrophulariae, radix rehmanniae recens, and radix ophiopogonis. There were 63 active ingredients and 905 potential targets. Key targets identified through PPI analysis included AKT1, TP53, TNF, EGFR, IL6, VEGFA, IL1B, INS, EGF, and CXCL8. GO function analysis revealed processes such as positive regulation of expression, positive regulation of cell proliferation, negative regulation of apoptosis, and inflammatory reactions. The main signaling pathways identified were the MAPK signaling pathway, PI3K-Akt signaling pathway, HIF-1 signaling pathway, calcium signaling pathway, and cytokine-cytokine receptor interactions. Molecular docking indicated relatively strong binding activity between the small molecules of the active ingredients and the target proteins. Conclusions: The critical drugs analyzed in this study potentially exert therapeutic effects on meibomian gland dysfunction-related dry eye disease by regulating related biological processes such as anti-inflammation and repairing the corneal epithelial barrier. These findings provide a theoretical basis for future research and development of new drugs and subsequent experimental investigations.


Asunto(s)
Medicamentos Herbarios Chinos , Síndromes de Ojo Seco , Disfunción de la Glándula de Meibomio , Humanos , Medicina Tradicional China , Simulación del Acoplamiento Molecular , Fosfatidilinositol 3-Quinasas , Síndromes de Ojo Seco/tratamiento farmacológico , Medicamentos Herbarios Chinos/farmacología , Medicamentos Herbarios Chinos/uso terapéutico
4.
Clin Lung Cancer ; 24(8): 717-725.e1, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37482500

RESUMEN

BACKGROUND: Combined small-cell lung cancer (c-SCLC) with gene mutations is a rare subtype often found alongside adenocarcinoma. Targeted therapy may be effective because of the presence of specific molecular targets. However, due to its rarity and unconventional genetic testing, the efficacy remains uncertain. METHODS: A total of 31 c-SCLC patients with gene mutations were retrospectively included and grouped according to their treatment regimens. Treatment outcomes were evaluated. Kaplan-Meier method was used for survival analysis, with Log Rank test applied for comparison between groups. RESULTS: We divided the 31 patients into 3 groups according to first-line treatment: group A (chemotherapy, n = 16), group B (targeted monotherapy, n = 7), and group C (targeted combination therapy, n = 8). The overall response rates (ORR) were 43.8%, 42.9%, and 62.5%. The disease control rates (DCR) were 87.5%, 85.7%, and 100%. The median progression-free survival (PFS) was 4.0, 5.0, and 7.93 months (P = .024), with a significant difference between group A and C (P = .010). The median overall survival (OS) was 14.10, 17.43, and 12.93 months (P = .313). Seven patients in group A received targeted therapy in later-line. Of the total 22 patients received targeted monotherapy or combination therapy, the ORR and DCR were 54.5% and 90.9%. The median PFS and OS were 5.87 and 17.30 months. Additionally, adverse events (AEs) occurred in 53.8% and 88.9% of monotherapy and combination therapy. The most common AEs in monotherapy were elevated transaminases (23.1%) and in combination anemia (66.7%). CONCLUSIONS: TKIs showed encouraging efficacy in driver-gene-positive c-SCLC. While monotherapy may be a supplementary option, combination with chemotherapy appears to be preferable and superior.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Carcinoma Pulmonar de Células Pequeñas , Humanos , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patología , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/genética , Carcinoma de Pulmón de Células no Pequeñas/patología , Estudios Retrospectivos , Carcinoma Pulmonar de Células Pequeñas/tratamiento farmacológico , Carcinoma Pulmonar de Células Pequeñas/genética
5.
BMC Public Health ; 23(1): 889, 2023 05 15.
Artículo en Inglés | MEDLINE | ID: mdl-37189089

RESUMEN

BACKGROUND: The micronutrient home fortification programs contribute to the prevention of childhood anemia. WHO suggested applying culturally appropriate strategies to implement the micronutrient home fortification programs in various communities. However, there is little knowledge on evidence-based effective diffusion strategies of the micronutrient home fortification programs in multi-ethnic populations. This study aims to examine the diffusion of a micronutrient home fortification program with micronutrient powder (MNP) in a multi-ethnic population by investigating factors associated with being an 'early' or a 'later' adopter of MNP. METHODS: We conducted a cross-sectional study in rural western China. Multistage sampling was used to select children's caregivers in Han, Tibetan, and Yi ethnic communities (N = 570). The diffusion of innovations theory informed the data collection on caregivers' decision process and was applied to classify participants into the MNP adopter categories of 'leaders', 'followers', 'loungers', and 'laggards'. The ordered logistic regression model estimated the factors associated with the MNP adopter categories. RESULTS: Caregivers from the Yi ethnic subgroup were likely to adopt MNP relatively late (AOR = 1.67; 95%CI = 1.09, 2.54) compared with Han and Tibetan ethnic subgroups. Caregivers with more knowledge regarding the MNP feeding method (AOR = 0.71; 95%CI = 0.52, 0.97) and those with stronger self-efficacy in adopting MNP (AOR = 0.85; 95%CI = 0.76, 0.96) were more likely to adopt MNP earlier than others. The following messages and channels also tend to make caregivers adopt MNP earlier: hearing that 'MNP was free' from villagers (AOR = 0.45; 95%CI = 0.20, 0.98), and learning 'MNP feeding method' from township doctors (AOR = 0.16; 95%CI = 0.06, 0.48). CONCLUSIONS: Disparities in adopting MNP existing among different ethnic groups require more effective diffusion strategies in disadvantaged minority ethnic groups. Enhancing self-efficacy in adopting MNP and knowledge on feeding method of MNP have the potential to make caregivers adopt MNP earlier. Peer networks and township doctors can be effective agencies to facilitate the diffusion and adoption of MNP.


Asunto(s)
Suplementos Dietéticos , Micronutrientes , Humanos , Lactante , Preescolar , Alimentos Fortificados , Etnicidad , Estudios Transversales , Fenómenos Fisiológicos Nutricionales del Lactante , Polvos , China , Población Rural
6.
Chem Sci ; 14(16): 4418-4425, 2023 Apr 26.
Artículo en Inglés | MEDLINE | ID: mdl-37123177

RESUMEN

A highly efficient and promiscuous 7,4'-di-O-glycosyltransferase ZjOGT3 was discovered from the medicinal plant Ziziphus jujuba var. spinosa. ZjOGT3 could sequentially catalyse 4'- and 7-O-glycosylation of flavones to produce 7,4'-di-O-glycosides with obvious regio-selectivity. For 7,4'-dihydroxyl flavanones and 3-O-glycosylated 7,4'-dihydroxyl flavones, ZjOGT3 selectively catalyses 7-O-glycosylation. The crystal structure of ZjOGT3 was solved. Structural analysis, DFT calculations, MD simulations, and site-directed mutagenesis reveal that the regio-selectivity is mainly controlled by the enzyme microenvironment for 7,4'-dihydroxyl flavones and 3-O-glycosylated 7,4'-dihydroxyl flavones. For 7,4'-dihydroxyl flavanones, the selectivity is mainly controlled by intrinsic reactivity. ZjOGT3 is the first plant flavonoid 7,4'-di-O-glycosyltransferase with a crystal structure. This work could help understand the catalytic mechanisms of multi-site glycosyltransferases and provides an efficient approach to synthesise O-glycosides with medicinal potential.

7.
J Ethnopharmacol ; 301: 115815, 2023 Jan 30.
Artículo en Inglés | MEDLINE | ID: mdl-36220508

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: Piper longum L., an herbal medicine used in India and other Asian countries, is prescribed routinely for a range of diseases, including tumor. Piperlongumine, a natural product isolated from Piper longum L., has received widespread attention due to its various pharmacological activities, such as anti-inflammatory, antimicrobial, and antitumor effects. AIM OF THE STUDY: Chronic myelogenous leukemia (CML) is a hematopoietic disease caused by Bcr-Abl fusion gene, with an incidence of 15% in adult leukemias. Targeting Bcr-Abl by imatinib provides a successful treatment approach for CML. However, imatinib resistance is an inevitable issue for CML treatment. In particular, T315I mutant is the most stubborn of the Bcr-Abl point mutants associated with imatinib resistance. Therefore, it is urgent to find an alternative approach to conquer imatinib resistance. This study investigated the role of a natural product piperlongumine in overcoming imatinib resistance in CML. MATERIALS AND METHODS: Cell viability and apoptosis were evaluated by MTS assay and Annexin V/propidium iodide counterstaining assay, respectively. Levels of intracellular signaling proteins were assessed by Western blots. Mitochondrial membrane potential was reflected by the fluorescence intensity of rhodamine-123. The function of proteasome was detected using 20S proteasomal activity assay, proteasomal deubiquitinase activity assay, and deubiquitinase active-site-directed labeling. The antitumor effects of piperlongumine were assessed with mice xenografts. RESULTS: We demonstrate that (i) Piperlongumine inhibits proteasome function by targeting 20S proteasomal peptidases and 19S proteasomal deubiquitinases (USP14 and UCHL5) in Bcr-Abl-WT and Bcr-Abl-T315I CML cells; (ii) Piperlongumine inhibits the cell viability of CML cell lines and primary CML cells; (iii) Proteasome inhibition by piperlongumine leads to cell apoptosis and downregulation of Bcr-Abl; (iv) Piperlongumine suppresses the tumor growth of CML xenografts. CONCLUSIONS: These results support that blockade of proteasome activity by piperlongumine provides a new therapeutic strategy for treating imatinib-resistant CML.


Asunto(s)
Antineoplásicos , Productos Biológicos , Leucemia Mielógena Crónica BCR-ABL Positiva , Humanos , Ratones , Animales , Mesilato de Imatinib/farmacología , Mesilato de Imatinib/uso terapéutico , Complejo de la Endopetidasa Proteasomal/metabolismo , Resistencia a Antineoplásicos , Proliferación Celular , Leucemia Mielógena Crónica BCR-ABL Positiva/tratamiento farmacológico , Proteínas de Fusión bcr-abl/genética , Apoptosis , Enzimas Desubicuitinizantes/uso terapéutico , Productos Biológicos/uso terapéutico , Línea Celular Tumoral , Antineoplásicos/farmacología , Ubiquitina Tiolesterasa/uso terapéutico
8.
Altern Ther Health Med ; 29(2): 155-161, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36455142

RESUMEN

Context: Drug-resistant tuberculosis (TB), especially multidrug-resistant TB, has continued to increase and pan-drug-resistant TB and even fully drug-resistant TB have emerged, bringing great challenges to the treatment of TB. Development of new, safe, and effective antituberculosis drugs is an urgent need. Objective: The study intended to evaluate the use of the network pharmacology method to comprehensively and systematically analyze the network relationship of Kushen's main components, targets, and signaling pathways, aiming to provide new ideas and clues for an in-depth study of the mechanism of Kushen's main components in the treatment of pulmonary TB. Design: The research team performed a Network pharmacology analysis. Setting: The study took place in the Department of Respiratory and Critical Care Medicine at the Third People's Hospital of Yichang City in Yichang, Hubei, China. Outcome Measures: The research team: (1) screened Kushen's active ingredients and related targets using the Traditional Chinese Medicine System Pharmacology (TCMSP) database and analysis platform; (2) used the GeneCards database and the Online Mendelian Inheritance in Man (OMIM) database to search for disease targets, (3) connected the active ingredient's targets to the disease targets to obtain predictive targets for Kushen to act against TB, (4) used the STRING database to construct a protein-protein interaction (PPI) network map, (5) used the Database for Annotation, Visualization and Integrated Discovery (DAVID) to subject the intersecting genes to gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses, and (6) used the TCMSP and Protein Data Bank (PDB) databases to dock the active ingredients with target-protein molecules. Results: The research team found 45 active ingredients for Kushen and 177 target-protein genes related to active ingredients. The PPI network map of the Kushen-TB targets and found that the top 10 targets of Kushen were: (1) mitogen-activated protein kinase 8 (MAPK8); (2) protein kinase B (AKT1); (3) MAPK1, (4) estrogen receptor 1 (ESR1), (5) rel avian reticuloendotheliosis viral oncogene homolog A (RELA), (6) interleukin-6 (IL6), (7) MYC proto-oncogene, basic helix-loop-helix (bHLH) transcription factor MYC), (8) retinoid X receptor alpha (RXRA), (9) FOS proto-oncogene activator protein 1 (AP-1) transcription factor subunit (FOS), and (10) JUN proto-oncogene AP-1 transcription factor subunit (JUN). The KEGG analysis suggested that Kushen can intervene in TB through the hypoxia-inducible factor 1 (HIF-1) signaling pathway. Conclusions: The network pharmacology analysis showed that Kushen's active ingredients can play a role in the treatment of TB through the HIF-1 signaling pathway.


Asunto(s)
Medicamentos Herbarios Chinos , Tuberculosis Resistente a Múltiples Medicamentos , Tuberculosis , Humanos , Farmacología en Red , Factor de Transcripción AP-1 , Medicina Tradicional China , Medicamentos Herbarios Chinos/farmacología , Medicamentos Herbarios Chinos/uso terapéutico
9.
Phytother Res ; 37(5): 1938-1950, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36567454

RESUMEN

Glucocorticoid-induced osteoporosis is the third epidemic osteoporosis following postmenopausal and senileosteoporosis. According to one study, salidroside made ovariectomized rats' bones strong. Salidroside's potential for treating glucocorticoid-induced osteoporosis remains unproven. This study aimed to investigate the protective effect and mechanism of salidroside on dexamethasone-induced osteogenic differentiation and bone formation in MC3T3-E1 cells and zebrafish. The study proved that salindroside had no harmful impact on MC3T3E1 cells. Salidroside significantly relieved dexamethasone-induced inhibition of ALP (alkaline phosphatase) activity and mineralization in MC3T3-E1 cells, and promoted osteogenic differentiation of cells. Salidroside increased the expression of osteopontin (OPN), runt-related transcription factor 2 (Runx2), osterix (Osx), transforming growth factor-beta (TGF-ß) proteins and promoted the phosphorylation of Smad2/3 in MC3T3-E1 cells treated with dexamethasone. In addition, the effect of salidroside in relieving dexamethasone-induced inhibition of osteogenic differentiation in MC3T3-E1 cells can be blocked by TGF-ß receptor type I/II inhibitor (LY2109761). At the same time, we found that salidroside significantly alleviated the inhibition of dexamethasone-induced bone formation in zebrafish and promoted the mineralization of zebrafish skulls. LY2109761 reversed the protective impact of salidroside on dexamethasone-mediated bone impairment in zebrafish. These findings suggested that salidroside alleviated dexamethasone-induced inhibition of osteogenic differentiation and bone formation via TGF-ß/Smad2/3 signaling pathway.


Asunto(s)
Osteogénesis , Osteoporosis , Ratas , Animales , Glucocorticoides/farmacología , Pez Cebra/metabolismo , Osteoblastos , Dexametasona/efectos adversos , Transducción de Señal , Factor de Crecimiento Transformador beta/farmacología , Factores de Crecimiento Transformadores/efectos adversos , Factores de Crecimiento Transformadores/metabolismo , Proteínas de Pez Cebra/metabolismo , Proteínas de Pez Cebra/farmacología , Proteína Smad2/metabolismo
10.
Artículo en Inglés | MEDLINE | ID: mdl-36569344

RESUMEN

Retinal pericyte migration occurs in the early stage of diabetic retinopathy (DR), which is one of the important causes of pericyte loss. Autophagy has been found to play essential roles in the regulation of many types of cell migration. In this study, we explored the relationship between autophagy and retinal pericyte migration. In diabetic rats, the retinas became thinner, and the level of autophagy in each cell layer increased. In the primary culture of bovine retinal pericytes, we found that advanced glycation end products (AGEs) increased the migratory cell ability without influencing cell viability, which also increased the phosphorylation of focal adhesion kinase (FAK) and the expression of matrix metalloproteinase (MMP)-2 and decreased the expression of vinculin. AGEs-induced retinal pericyte autophagy and the inhibition of autophagy with chloroquine significantly inhibited cell migration, reversed AGEs-induced FAK phosphorylation, and changed vinculin and MMP-2 protein expression. These results provide a new insight into the migration mechanism of retinal pericytes. The early control of autophagy has a potential effect on regulating pericyte migration, which may contribute to keeping the integrity of retinal vessels in DR.

11.
Artículo en Inglés | MEDLINE | ID: mdl-36430051

RESUMEN

This study aims to investigate e-cigarette and tea cigarette gifting in China and their influencing factors, as well as to explore whether they were associated with tobacco use and cessation. Using a multistage sampling design, 1512 household heads from Guangdong and Shaanxi provinces were recruited for the study and filled out an online questionnaire about smoking status, social participation, e-cigarette, and tea cigarette gifting. Results showed that more than 30% and nearly 3% of participants had been gifted tea cigarettes and e-cigarettes, respectively. Marital status, province of residence, smoking status, and social participation were associated with gifting behaviors. Logistic regressions showed that receiving e-cigarettes (OR = 3.43, p < 0.05) and tea cigarettes (OR = 1.70, p < 0.01) were related to tobacco use. Smokers who have received e-cigarettes (OR = 9.85, p < 0.01) and tea cigarettes (OR = 1.92, p < 0.05) were also less likely to quit smoking.


Asunto(s)
Sistemas Electrónicos de Liberación de Nicotina , Productos de Tabaco , Humanos , Uso de Tabaco , China/epidemiología ,
12.
Artículo en Inglés | MEDLINE | ID: mdl-36231243

RESUMEN

Alien plant invasion and residual soil microplastics (MPs) are growing threats to agricultural crop production. This study determined the adverse effects of Canadian goldenrod (Solidago canadensis L.) invasion and residual soil MPs on rice growth and development. The biomass, phenological indices, photosynthetic parameters, and antioxidant enzyme activities of rice were measured on the 50th and 80th day of post-plantation. Biomass and phenotypic results indicated the more harmful effects of the combination of S. canadensis invasion and residual soil MPs compared to S. canadensis invasion or residual soil MPs effects alone. Moreover, the interaction effect of S. canadensis invasion and residual soil MPs markedly reduced the ascorbate peroxidase and catalase belowground, while they increased in the aboveground parts of the rice. However, the S. canadensis invasion and residual soil MPs interactive treatments lowered the superoxide dismutase concentrations in the belowground parts of the rice plants while elevating the peroxidase and reactive oxygen species concentrations in both the belowground and aboveground parts compared to the other treatments. Among all treatments, S. canadensis invasion alone had the most negligible negative impact on rice biomass and growth indices. Our study suggests that soil MPs could negatively affect crop production with invasive alien plants, and the combined effects were more harmful than either of the single factors. Our findings will lay the groundwork for analyzing the impacts of invasive alien plants on rice crops.


Asunto(s)
Oryza , Solidago , Antioxidantes , Ascorbato Peroxidasas , Canadá , Catalasa , Especies Introducidas , Microplásticos , Plásticos , Especies Reactivas de Oxígeno , Suelo , Superóxido Dismutasa
13.
Biomed Res Int ; 2022: 6022981, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36093402

RESUMEN

Cisplatin resistance is one of the major obstacles in the treatment of nonsmall cell lung cancer (NSCLC). Kangai injection (KAI), a Chinese herbal medicine, has been used in tumors as adjuvant treatment, but its exact antitumor mechanism is still unclear. In this study, we first demonstrated that cisplatin-resistant A549/DDP cells showed a higher level of basal autophagy in response to cisplatin treatment with increasing autophagic protein expression levels of Beclin 1, p62, and LC3 compared to cisplatin-sensitive A549/DDP cells; then, we assessed the antitumor effect of KAI in cisplatin-resistant lung adenocarcinoma A549/DDP cells. Our results showed that KAI exhibited direct cytotoxic and chemosensitizing effects in A549/DDP cells. Combining KAI with cisplatin promoted A549/DDP cell apoptosis, which was confirmed by cell cycle arrest, condensed nuclear chromatin, annexin V fluorescein isothiocyanate/propidium iodide (Annexin V-FITC/PI) staining, and apoptosis-related protein expression. In addition, combining KAI with cisplatin induced autophagic cell death in A549/DDP cells with a high level of basal autophagy, as indicated by an increase in LC3 spot count, an accumulation of Beclin 1 and LC3 II, and reduced p62 protein expression. We also found that the apoptosis and autophagic cell death induced by cotreatment of KAI and cisplatin in A549/DDP cells were FOXO3a-dependent as indicated by decreased p-FOXO3a expression and increased FOXO3a nuclear localization, respectively. Furthermore, the FOXO3a gene knockdown assay further confirmed that KAI enhanced cisplatin cytotoxicity in A549/DDP cells with a high level of basal autophagy by inducing apoptosis and autophagic cell death in a FOXO3a-dependent manner. These findings suggest that the combination of KAI and cisplatin might support the potential clinical treatment as a novel strategy to overcome cisplatin resistance.


Asunto(s)
Adenocarcinoma del Pulmón , Muerte Celular Autofágica , Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Adenocarcinoma del Pulmón/tratamiento farmacológico , Apoptosis , Autofagia , Beclina-1/genética , Carcinoma de Pulmón de Células no Pequeñas/genética , Cisplatino/farmacología , Cisplatino/uso terapéutico , Resistencia a Antineoplásicos , Humanos , Neoplasias Pulmonares/patología
14.
Phytother Res ; 36(11): 4139-4154, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36117321

RESUMEN

This meta-analysis of randomized controlled trials (RCTs) was conducted to explore the effects of flavonoid intake on adiponectin and leptin levels. The PubMed, EMBASE, and Cochrane Library databases were searched on March 1, 2021. Random-effects, subgroup, sensitivity, and meta-regression analyses were conducted on 40 publications. Flavonoid intake significantly increased circulating adiponectin (0.54 µg/ml, 95% CI [0.20, 0.88], p = .002; I2  = 86.4%) and significantly reduced leptin levels (weighted mean difference: -0.79 ng/ml, 95% CI [-1.33, -0.25], p = .004; I2  = 87.7%). Subgroup analysis demonstrated that flavonoid intervention produced a significant elevation in adiponectin levels only in studies that lasted more than 12 weeks, conducted in Asian regions, were parallel-designed, involved obese or overweight participants and participants with type 2 diabetes mellitus (T2DM) or cardiovascular diseases, used tea catechins, and used a dietary supplement intervention. A significantly negative effect on leptin levels was observed in studies conducted in Asian countries, with healthy participants and participants with T2DM, used whole food interventions, and involved participants with lower baseline leptin levels. In conclusion, flavonoid intake significantly increased circulating adiponectin and decreased leptin levels; however, study heterogeneity was very high. Future well-designed trials are required to address heterogeneous study designs and clarify the efficacy of plants in regulating adiponectin and leptin levels.


Asunto(s)
Adiponectina , Diabetes Mellitus Tipo 2 , Humanos , Adiponectina/uso terapéutico , Leptina/uso terapéutico , Flavonoides/farmacología , Flavonoides/uso terapéutico , Obesidad , Diabetes Mellitus Tipo 2/tratamiento farmacológico
15.
Materials (Basel) ; 15(13)2022 Jun 28.
Artículo en Inglés | MEDLINE | ID: mdl-35806667

RESUMEN

It is critical to construct stimuli-responsive multifunctional nanoparticles for the drug delivery system for cancer treatment. Zeolitic imidazolate framework-8 (ZIF-8) has a large specific surface area and decomposes quickly under acidic conditions, which presents an excellent potential in pH-sensitive drug carriers. However, the mere chemotherapeutic drug loaded into ZIF-8 is a monotherapy and may restrict the therapeutic efficacy of malignancies. In this work, an effective nanoparticle-based delivery platform is established to simultaneously encapsulate doxorubicin (DOX) and MXene quantum dot (MQD) in ZIF-8 nanoparticles (MQD@ZIF-8/DOX). Under near-infrared (NIR) laser (808 nm) and UV light (365 nm) irradiation, MQD@ZIF-8 demonstrates a high photothermal conversion efficiency and reactive oxygen species (ROS) production, which shows excellent photothermal therapy and photodynamic therapy effects. Furthermore, the release of DOX-loaded into MQD@ZIF-8 nanoparticles is significantly increased under NIR laser irradiation and at pH 5.6, indicating that acidic conditions and NIR laser irradiation can be effectively combined to stimulate the drug release. The cellular experiments show that MQD@ZIF-8/DOX has an obvious killing effect on HeLa cells and achieves the combined anti-tumor effect of chemotherapy and phototherapy.

16.
BMC Public Health ; 22(1): 1366, 2022 07 16.
Artículo en Inglés | MEDLINE | ID: mdl-35842633

RESUMEN

BACKGROUND: High adherence and proper usage of micronutrient powder (MNP) influence child nutritional outcomes, yet few studies explore the role of delivery patterns. This study explores the association between MNP delivery patterns and MNP feeding behaviors among Han and minority caregivers in rural Western China. METHODS: In August 2019, a total of 1021 caregiver-child pairs were selected through a four-stage cluster sampling process. A cross-sectional survey collected information on caregiver demographics, MNP delivery patterns (channel and frequency), and MNP feeding behaviors (proper usage and adherence). Using logistic regression, we examined which delivery channels and delivery frequencies were associated with proper usage and high adherence. RESULTS: The results indicated that minority caregivers had lower levels of proper MNP usage than did Han caregivers (89.2%), with Tibetan caregivers' reporting the lowest rates of adherence (32.6%). Logistic regression revealed that that township-based channel was significantly correlated with proper usage among Tibetan and Yi caregivers (Odds Ratio, OR = 2.0, p < 0.01; and OR = 3.5, p < 0.001). Overall, the township-based and home-visit channels were significantly correlated with high adherence (OR = 1.7 and OR = 2.3, respectively; p < 0.001); delivery frequency was significantly correlated with high adherence (2 months: OR = 2.2, p < 0.001 and ≤ 1 month: OR = 3.5, p < 0.001) but not correlated with proper usage among the whole sample and individual ethnic groups. CONCLUSIONS: In conclusion, the study finds evidence of a correlation between MNP delivery channel and both proper usage and high adherence as well as a correlation between MNP delivery frequency and high adherence.


Asunto(s)
Micronutrientes , Oligoelementos , Cuidadores , China , Estudios Transversales , Suplementos Dietéticos , Conducta Alimentaria , Alimentos Fortificados , Humanos , Lactante , Fenómenos Fisiológicos Nutricionales del Lactante , Polvos
17.
Pharmacol Res ; 183: 106361, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35882295

RESUMEN

There are numerous prescription drugs and non-prescription drugs that cause drug-induced liver injury (DILI), which is the main cause of liver disease in humans around the globe. Its mechanism becomes clearer as the disease is studied further. For an instance, when acetaminophen (APAP) is taken in excess, it produces N-acetyl-p-benzoquinone imine (NAPQI) that binds to biomacromolecules in the liver causing liver injury. Treatment of DILI with traditional Chinese medicine (TCM) has shown to be effective. For example, activation of the Nrf2 signaling pathway as well as regulation of glutathione (GSH) synthesis, coupling, and excretion are the mechanisms by which ginsenoside Rg1 (Rg1) treats APAP-induced acute liver injury. Nevertheless, reducing the toxicity of TCM in treating DILI is still a problem to be overcome at present and in the future. Accumulated evidences show that hydrogel-based nanocomposite may be an excellent carrier for TCM. Therefore, we reviewed TCM with potential anti-DILI, focusing on the signaling pathway of these drugs' anti-DILI effect, as well as the possibility and prospect of treating DILI by TCM based on hydrogel materials in the future. In conclusion, this review provides new insights to further explore TCM in the treatment of DILI.


Asunto(s)
Productos Biológicos , Enfermedad Hepática Inducida por Sustancias y Drogas , Medicamentos Herbarios Chinos , Acetaminofén , Productos Biológicos/uso terapéutico , Enfermedad Hepática Inducida por Sustancias y Drogas/tratamiento farmacológico , Medicamentos Herbarios Chinos/uso terapéutico , Humanos , Hidrogeles , Medicina Tradicional China
18.
Lett Appl Microbiol ; 74(6): 970-980, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35247280

RESUMEN

Enterococcus faecasslis (E. faecalis) is a resident bacterium in the host. The increase in internal stress like low pH may affect the biological effects of E. faecalis. The prebiotic-like function of tea polyphenols can enhance the beneficial effects of its tolerance to environmental stress. In this study, RNA-sequence analysis was used to explore the protective effect of green tea polyphenols (GTP) on E. faecalis under low pH stress. A total of 28 genes were found to be responsive to GTP under low pH stress, including 16 up-regulated and 12 down-regulated. GTP intervention can partly relieve some undesired negative influences, such as the down-regulation of the base excision repair gene and amino acid transport and metabolism gene. The significantly changes were associated with selenocompound metabolism and aminoacyl-tRNA biosynthesis after the intervention of GTP. The present study provided new insights into the growth and continuous adaptation of E. faecalis under stress.


Asunto(s)
Enterococcus faecalis , Polifenoles , Antioxidantes/farmacología , Enterococcus faecalis/genética , Guanosina Trifosfato/metabolismo , Concentración de Iones de Hidrógeno , Polifenoles/farmacología , Análisis de Secuencia de ARN , Té/química , Té/metabolismo
19.
Matern Child Nutr ; 18(1): e13278, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34658128

RESUMEN

Adherence to home fortification of foods with multiple micronutrient powders (MNPs) is an essential indicator of effective implementation of MNP programmes. A meta-analysis was conducted to evaluate the high adherence rate (HAR) to MNPs and further investigate the factors that influence HAR. We searched PubMed, Web of Science, Embase, CAB Abstracts, MEDLINE (OVID), Cochrane Library, China National Knowledge Infrastructure, Wanfang and VP, from the date of database inception to 9 November 2020. We included peer-reviewed observational studies that investigated adherence to MNPs. Data on the HAR to MNPs and influencing factors on HAR were extracted and then pooled together. A total of 10 studies were included. The pooled HAR to MNPs was 63.28% (51.12%-74.64%). Among HARs, rates were higher in middle-income countries (65.21%) than low-income countries (55.23%). Parental age over 30 years (maternal age OR = 1.25, 95% CI: 1.08-1.44; paternal age OR = 1.17, 95% CI: 1.04-1.32), children aged 18-36 months (OR = 1.45, 95% CI: 1.12-1.88), maternal educational attainment of college or above (OR = 1.38, 95% CI:1.10-1.73), caregiver with the perception that other mothers use MNPs (OR = 1.52, 95% CI:1.19-1.95), caregiver being aware of the importance of iron (OR = 1.42, 95% CI: 1.18-1.71), caregiver having correct knowledge of MNPs (OR = 1.36, 95% CI:1.19-1.57) and caregiver reporting children have no side effects from MNPs (OR = 2.77, 95% CI: 2.46-3.11) were contributing factors to high adherence to MNPs. The overall HAR to MNPs was relatively low; hence, effective and trusted communication channels need to be established, along with more thorough dissemination of the knowledge of MNPs to caregivers, to improve MNPs adherence rates, especially in low-income countries.


Asunto(s)
Anemia Ferropénica , Micronutrientes , Adulto , Anemia Ferropénica/tratamiento farmacológico , Anemia Ferropénica/epidemiología , Anemia Ferropénica/prevención & control , Niño , Preescolar , Suplementos Dietéticos , Alimentos Fortificados , Humanos , Lactante , Micronutrientes/uso terapéutico , Polvos
20.
J Laparoendosc Adv Surg Tech A ; 32(6): 659-667, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-34534019

RESUMEN

Objective: The objective of this study was to compare the perioperative, oncological, and functional results and complications of extracorporeal orthotopic neobladder (EON) and totally intracorporeal orthotopic neobladder (ION) after laparoscopic radical cystectomy (LRC) in patients with muscle-invasive bladder cancer and high-risk nonmuscle-invasive bladder cancer. Methods: From January 2013 to October 2019, 152 patients underwent LRC and U-shape neobladder urinary diversion at a single tertiary referral hospital. We then compared the extracorporeal (n = 62) and intracorporeal (n = 90) orthotopic neobladder after laparoscopic cystectomy groups. Results: Of all patients, 90 with ION and 62 with EON were included in the study. Concerning perioperative outcomes, the ION group had lower estimated blood loss (455.7 versus 371.7 mL, P = .019), a shorter interval to solid food (6.9 versus 8.7 days, P = .006), and a shorter length of hospital stay (14.6 versus 16.0 days, P = .009). No statistically significant differences were identified in overall (P = .649), early (P = .509), and late (P = .367) complications. However, in terms of gastrointestinal complications, the ION group had a lower complication rate than the EON group (11.1% versus 27.4%, P = .018). There were no statistically significant differences in cancer-specific or noncancer-specific mortality. Daytime and nocturnal continence rates for the ION versus EON groups were 86.7% and 87.1% (P = 1) and 70.0% versus 66.1% (P = .614), respectively. Patients who underwent intracorporeal urinary diversion had a higher health-related quality of life within 3 months postoperative than the extracorporeal urinary diversion group. Conclusion: LRC with ION could be an alternative to EON with similar oncological and functional outcomes at tertiary referral centers. ION had advantages of faster bowel recovery, fewer gastrointestinal complications, and higher quality of life within 3 months postoperative. Clinical Trial Registration No. ChiCTR2100042063.


Asunto(s)
Laparoscopía , Neoplasias de la Vejiga Urinaria , Derivación Urinaria , Cistectomía/métodos , Humanos , Laparoscopía/métodos , Calidad de Vida , Resultado del Tratamiento , Neoplasias de la Vejiga Urinaria/cirugía , Derivación Urinaria/métodos
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