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1.
ACS Nano ; 2024 Sep 17.
Artículo en Inglés | MEDLINE | ID: mdl-39287044

RESUMEN

The refractory luminal androgen receptor (LAR) subtype of triple-negative breast cancer (TNBC) patients is challenged by significant resistance to neoadjuvant chemotherapy and increased immunosuppression. Regarding the distinct upregulation of glutathione (GSH) and glutathione peroxidase 4 (GPX4) in LAR TNBC tumors, we herein designed a GSH-depleting phospholipid derivative (BPP) and propose a BPP-based nanotherapeutics of RSL-3 (GDNS), aiming to deplete intracellular GSH and repress GPX4 activity, thereby potentiating ferroptosis for treating LAR-subtype TNBC. GDNS treatment drastically downregulated the expression of GSH and GPX4, resulting in a 33.88-fold enhancement of lipid peroxidation and significant relief of immunosuppression in the 4T1 TNBC model. Moreover, GDNS and its combination with antibody against programed cell death protein 1 (antiPD-1) retarded tumor growth and produced 2.83-fold prolongation of survival in the LAR-positive TNBC model. Therefore, the GSH-disrupting GDNS represents an encouraging strategy to potentiate ferroptosis for treating refractory LAR-subtype TNBC.

2.
Sci Rep ; 14(1): 20794, 2024 09 05.
Artículo en Inglés | MEDLINE | ID: mdl-39242716

RESUMEN

Cytokine-induced apoptosis inhibitor 1 (CIAPIN1) is a protein that regulates apoptosis and programmed cell death. This research aims to evaluate its potential role in inhibiting breast cancer cell proliferation, migration, and glycolysis and uncover its underlying molecular mechanism. We collected breast cancer tissue samples from eight patients between January 2019 and June 2023 in our Hospital to analyse CIAPIN1 expression. We transfected human breast cancer cell lines (MCF7, MDA-MB-231, MDA-MB-453, and MDA-MB-468) with siRNA of CIAPIN1. Finally, we determined protein expression using RT-qPCR and Western blotting. CIAPIN1 expression was elevated in both breast cancer tissue and serum. Overexpression of CIAPIN1 detected in the breast cancer cell lines MCF7 and MDA-MB-468. In addition, CIAPIN1 overexpression increased cell proliferation and migration rate. CIAPIN1 downregulation suppressed cell proliferation while elevated cellular apoptosis, reactive oxygen species (ROS) production and oxidative stress in breast cancer cells. Moreover, CIAPIN1 inhibition remarkably suppressed pyruvate, lactate and adenosine triphosphate (ATP) production and reduced the pyruvate kinase M2 (PKM2) protein expression and phosphorylation of signal transducer and activator of transcription 3 (STAT3) in breast cancer cells. Downregulation of CIAPIN1 suppresses cell proliferation, migration and glycolysis capacity in breast cancer cells by inhibiting the STAT3/PKM2 pathway.


Asunto(s)
Neoplasias de la Mama , Movimiento Celular , Proliferación Celular , Regulación hacia Abajo , Glucólisis , Péptidos y Proteínas de Señalización Intracelular , Factor de Transcripción STAT3 , Humanos , Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/patología , Neoplasias de la Mama/genética , Glucólisis/genética , Factor de Transcripción STAT3/metabolismo , Factor de Transcripción STAT3/genética , Movimiento Celular/genética , Femenino , Péptidos y Proteínas de Señalización Intracelular/metabolismo , Péptidos y Proteínas de Señalización Intracelular/genética , Transducción de Señal , Regulación Neoplásica de la Expresión Génica , Línea Celular Tumoral , Apoptosis/genética , Células MCF-7 , Especies Reactivas de Oxígeno/metabolismo
3.
Am J Transl Res ; 16(8): 3851-3858, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39262695

RESUMEN

OBJECTIVE: The combinative effects of neuromuscular electrical stimulation and ibuprofen on pain in patients with femoral head necrosis were discussed and analyzed. METHOD: This retrospective study analyzed data of 60 patients with femoral head necrosis hospitalized during Oct. 2020 to Oct. 2021. According to different treatment methods, the patients were divided into an observation group and a control group (30 cases in each group). The control group took oral ibuprofen sustained-release capsules, and the observation group was treated with neuromuscular electrical stimulation in addition to ibuprofen. Both groups received a 4-week treatment course. The therapeutic efficacy, Harris scale scores, Visual Analogue Scale (VAS) score, MRI hip imaging stage, SF-36 scale score, serum plasminogen activator inhibitor 1 (PAI-1), leptin and osteopontin levels before and after treatment were compared between the two groups. RESULTS: After treatment, the overall response rate in the observation group was higher than that in control group (P<0.05). The post-treatment scores of Harris scale were higher in both groups than those pre-treatment (P<0.05), and were higher in the observation group than in the control group (P<0.05). The VAS scores were decreased in both groups (P<0.05), and the decrease was more significant in the observation group than in the control group (P<0.05). After treatment, there were more patients with 0-I MRI hip imaging stage in the two groups than before treatment (P<0.05), and more in the observation group than in the control group (P<0.05). The SF-36 scores in both groups were increased (P<0.05), and the increase was more significant in the observation group than in the control group (P<0.05). The serum levels of PAI-1, leptin and osteopontin were decreased in both groups (P<0.05), and the decreases were more significant in the observation group than in the control group (P<0.05). CONCLUSION: The combinative treatment of neuromuscular electrical stimulation and ibuprofen has a significant effect on patients with femoral head necrosis. The treatment can remarkably reduce patients' pain, improve their hip function and quality of life, and decrease the PAI-1, leptin and osteopontin levels.

4.
Small ; : e2404919, 2024 Aug 03.
Artículo en Inglés | MEDLINE | ID: mdl-39096112

RESUMEN

Electrochemical conversion of nitrate (NO3 -) to ammonia (NH3) is an effective approach to reduce nitrate pollutants in the environment and also a promising low-temperature, low-pressure method for ammonia synthesis. However, adequate H* intermediates are highly expected for NO3 - hydrogenation, while suppressing competitive hydrogen evolution. Herein, the effect of H* coverage on the NO3RR for ammonia synthesis by Cu electrocatalysts is investigated. The H* coverage can be adjusted by changing Pd nanoparticle sizes. The optimized Pd@Cu with an average Pd size of 2.88 nm shows the best activity for NO3RR, achieving a maximum Faradaic efficiency of 97% (at -0.8 V vs RHE) and an NH3 yield of 21 mg h-1 cm- 2, from an industrial wastewater level of 500 ppm NO3 -. In situ electrochemical experiments indicate that Pd particles with 2.88 nm can promote NO3 - hydrogenation to NH3 via well-modulated coverage of adsorbed H* species. Coupling the anodic glycerol oxidation reaction, ammonium and formate are successfully obtained as value-added products in a membrane electrode assembly electrolyzer. This work provides a feasible strategy for obtaining size-dependent H* intermediates for hydrogenation.

5.
Genes (Basel) ; 15(8)2024 Aug 12.
Artículo en Inglés | MEDLINE | ID: mdl-39202424

RESUMEN

Growth-regulating factor (GRF) is a multi-gene family that plays an important role in plant growth and development and is widely present in plants. Currently, GRF gene members have been reported in many plants, but the GRF gene family has not been found in sweet potato. In this study, ten GRF genes were identified in sweet potato (Ipomoea batatas), twelve and twelve were identified in its two diploid relatives (Ipomoea trifida) and (Ipomoea triloba), which were unevenly distributed on nine different chromosomes. Subcellular localization analysis showed that GRF genes of sweet potato, I. trifida, and I. triloba were all located in the nucleus. The expression analysis showed that the expression of IbGRFs was diverse in different sweet potato parts, and most of the genes were upregulated and even had the highest expression in the vigorous growth buds. These findings provide molecular characterization of sweet potato and its two diploid relatives, the GRF families, further supporting functional characterization.


Asunto(s)
Regulación de la Expresión Génica de las Plantas , Ipomoea batatas , Familia de Multigenes , Proteínas de Plantas , Ipomoea batatas/genética , Ipomoea batatas/crecimiento & desarrollo , Ipomoea batatas/metabolismo , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Filogenia , Genoma de Planta , Cromosomas de las Plantas/genética , Ipomoea/genética , Ipomoea/crecimiento & desarrollo , Ipomoea/metabolismo
6.
J Transl Med ; 22(1): 650, 2024 Jul 12.
Artículo en Inglés | MEDLINE | ID: mdl-38997780

RESUMEN

BACKGROUND: Although the inherited risk factors associated with fatty liver disease are well understood, little is known about the genetic background of metabolic dysfunction-associated steatotic liver disease (MASLD) and its related health impacts. Compared to non-alcoholic fatty liver disease (NAFLD), MASLD presents significantly distinct diagnostic criteria, and epidemiological and clinical features, but the related genetic variants are yet to be investigated. Therefore, we conducted this study to assess the genetic background of MASLD and interactions between MASLD-related genetic variants and metabolism-related outcomes. METHODS: Participants from the UK Biobank were grouped into discovery and replication cohorts for an MASLD genome-wide association study (GWAS), and base and target cohorts for polygenic risk score (PRS) analysis. Autosomal genetic variants associated with NAFLD were compared with the MASLD GWAS results. Kaplan-Meier and Cox regression analyses were used to assess associations between MASLD and metabolism-related outcomes. RESULTS: Sixteen single-nucleotide polymorphisms (SNPs) were identified at genome-wide significance levels for MASLD and duplicated in the replication cohort. Differences were found after comparing these SNPs with the results of NAFLD-related genetic variants. MASLD cases with high PRS had a multivariate-adjusted hazard ratio of 3.15 (95% confidence interval, 2.54-3.90) for severe liver disease (SLD), and 2.81 (2.60-3.03) for type 2 diabetes mellitus. The high PRS amplified the impact of MASLD on SLD and extrahepatic outcomes. CONCLUSIONS: High PRS of MASLD GWAS amplified the impact of MASLD on SLD and metabolism-related outcomes, thereby refining the process of identification of individuals at high risk of MASLD. Supplementation of this process with relevant genetic backgrounds may lead to more effective MASLD prevention and management.


Asunto(s)
Predisposición Genética a la Enfermedad , Estudio de Asociación del Genoma Completo , Herencia Multifactorial , Polimorfismo de Nucleótido Simple , Humanos , Polimorfismo de Nucleótido Simple/genética , Masculino , Femenino , Herencia Multifactorial/genética , Factores de Riesgo , Persona de Mediana Edad , Hígado Graso/genética , Hígado Graso/complicaciones , Enfermedad del Hígado Graso no Alcohólico/genética , Enfermedades Metabólicas/genética , Enfermedades Metabólicas/complicaciones , Estudios de Cohortes , Estimación de Kaplan-Meier , Anciano , Modelos de Riesgos Proporcionales , Puntuación de Riesgo Genético
7.
Med Sci Monit ; 30: e943551, 2024 Jul 03.
Artículo en Inglés | MEDLINE | ID: mdl-38959178

RESUMEN

BACKGROUND Gastrointestinal diffuse large B-cell lymphoma (GI-DLBCL) is the most common histological subtype of extra-nodal DLBCL, but the risk factors, prognostic biomarkers, histopathological classifications, and treatment strategies have not had significant progress. Emerging evidence shows that cystatin SN (CST1) is involved in tumor progression in several cancer types, but its role in GI-DLBCL has not been revealed. MATERIAL AND METHODS We established a cohort consisting of 84 patients with GI-DLBCL who underwent surgical resection. The expression of CST1 in the cohort was investigated by immunohistochemistry, which divided the patients into subgroups with low or high expression of CST1. Moreover, the CST1 expression in GI-DLBCL tissues or adjacent GI tissues were compared with RT-qPCR. The correlation between CST1 expression and clinicopathological factors was analyzed with the chi-square test. The prognostic significance of CST1 was estimated by univariate and multivariate analysis, and statistical significance was analyzed with the log-rank test. RESULTS CST1 was aberrantly upregulated in GI-DLBCL tissues compared with in non-tumor GI tissues. High expression of CST1 indicated poor prognosis of GI-DLBCL (P=0.012), and CST1 can be regarded as an independent prognostic biomarker of GI-DLBCL (hazard ratio=3.07). In our study, serum lactate dehydrogenase (P=0.002), performance status (P=0.003), Lugano stage (P=0.002), and International Prognostic Index (P=0.001) were also prognostic factors of GI-DLBCL. CONCLUSIONS CST1 is an independent prognostic biomarker of GI-DLBCL, indicating unfavorable prognosis. Our results suggested that CST1 detection can be a promising method to stratify high-risk patients and guide individual treatment.


Asunto(s)
Biomarcadores de Tumor , Neoplasias Gastrointestinales , Linfoma de Células B Grandes Difuso , Humanos , Masculino , Femenino , Linfoma de Células B Grandes Difuso/genética , Linfoma de Células B Grandes Difuso/metabolismo , Linfoma de Células B Grandes Difuso/patología , Biomarcadores de Tumor/metabolismo , Biomarcadores de Tumor/genética , Pronóstico , Persona de Mediana Edad , Neoplasias Gastrointestinales/metabolismo , Neoplasias Gastrointestinales/patología , Neoplasias Gastrointestinales/genética , Anciano , Adulto , Cistatinas Salivales/metabolismo , Cistatinas Salivales/genética , Inmunohistoquímica , Estudios de Cohortes
8.
Opt Express ; 32(8): 13543-13551, 2024 Apr 08.
Artículo en Inglés | MEDLINE | ID: mdl-38859321

RESUMEN

The integration of wireless light communication into a wireless fidelity (Wi-Fi) module and gateway enables real-time integrated communication networks that satisfy practical application demands. In particular, wireless green light communication tools can operate underwater and in free-space environments. Here, we design, fabricate, and characterize a full-duplex light communication system using green laser diodes (LDs). Operating within the transmission control protocol/internet protocol (TCP/IP), full-duplex wireless data transmission is confirmed in underwater and free-space environments at a communication rate of 10 Mbps. Through connections to a Wi-Fi module and gateway, the system is accessed by the network via the TCP/IPv4 internet scheme, and real-time video transmission is demonstrated.

9.
Opt Express ; 32(12): 21553-21562, 2024 Jun 03.
Artículo en Inglés | MEDLINE | ID: mdl-38859506

RESUMEN

In this paper, a new method for rotational angle and speed measurements is proposed by integrating a GaN optoelectronic chip with a stepped disc. The optoelectronic chip that integrates a light-emitting diode (LED) and a photodiode (PD) is fabricated by wafer-level microfabrication. The disc is designed with a spiral staircase shape, and has increasing thickness distribution along the circumferential direction. The sensing mechanism is that the optoelectronic chip measures angle-dependent intensity change of the light reflected off the stepped disc. Through a series of performance tests, the chip is highly sensitive to a continuous rotation from 0 ∘ to 360 ∘, and produces photocurrent to indicate the rotational angle and speed. A rotational speed up to 5000 rpm is measured with a relative error less than 1.27%. The developed sensing architecture provides an alternative solution for constructing a low-cost, miniaturized, and high-efficiency rotational angle and speed sensing system.

10.
Front Nutr ; 11: 1382296, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38835959

RESUMEN

A new dryer, integrating infrared and heat pump drying technologies, was designed to enhance licorice processing standardization, aiming at improved drying efficiency and product quality. Numerical simulation using COMSOL software validated the air distribution model through prototype data comparison. To address uneven air distribution, a spoiler was strategically placed based on CFD simulation to optimize its size and position using the velocity deviation ratio and non-uniformity coefficient as indices. Post-optimization, the average velocity deviation ratio decreased from 0.5124 to 0.2565%, and the non-uniformity coefficient dropped from 0.5913 to 0.3152, achieving a more uniform flow field in the drying chamber. Testing the optimized dryer on licorice demonstrated significant improvements in flow field uniformity, reducing licorice drying time by 23.8%. Additionally, optimized drying enhanced licorice color (higher L* value) and increased retention rates of total phenol, total flavone, and vitamin C. This research holds substantial importance for advancing licorice primary processing, fostering efficiency, and improving product quality.

11.
Opt Express ; 32(10): 18193-18200, 2024 May 06.
Artículo en Inglés | MEDLINE | ID: mdl-38858981

RESUMEN

Integrating optoelectronic devices with various functions into a monolithic chip is a popular research frontier. The top-down integration scheme on silicon-based III-nitride wafers has unique advantages. A monolithic III-nitride on-chip system with lighting source, electrical absorption modulator, waveguide and photodetector with the same structure were designed and fabricated to discover the asymmetry of photon emission and absorption in quantum well diode. The characteristics of the chip were characterized in detail and three different spectral redshifts were observed in the experiment. Results revealed that the asymmetric absorption causes spectral redshift in a quantum well diode, and self-absorption is a fundamental and universal phenomenon in quantum wells. This work provides an important reference for future III-nitride optoelectronic integration.

12.
Ann Gastroenterol Surg ; 8(3): 507-520, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38707229

RESUMEN

Purpose: This study aims to explore the role of circ_0032704 in sorafenib-resistant hepatocellular carcinoma (HCC). Methods: The expression of circ_0032704, miR-514a-3p, and programmed death-ligand 1 (PD-L1) mRNA was detected by quantitative real-time PCR (qPCR). The expression of multidrug resistant-related proteins, migration/invasion-related proteins, exosome-related proteins, and PD-L1 protein was detected by western blot. Cell viability was detected by CCK-8 assay. Cell proliferation, migration, and invasion were assessed by EdU assay, wound healing assay, and transwell assay. The binding between miR-514a-3p and circ_0032704 or PD-L1 was verified by RIP assay, pull-down assay, and dual-luciferase reporter assay. Cell- or serum-derived exosomes were isolated and identified by TEM and NTA. Xenograft models were established to determine the effect of circ_0032704 on drug resistance in vivo. Results: Circ_0032704 was overexpressed in sorafenib-resistant HCC tissues and cells. Circ_0032704 knockdown reduced sorafenib resistance in HCC cells and inhibited cell proliferation, migration, and invasion of sorafenib-resistant HCC cells, while these effects were reversed by PD-L1 overexpression. We found that circ_0032704 positively regulated PD-L1 expression via targeting miR-514a-3p. Exosomes with circ_0032704 inhibition reduced sorafenib resistance in HCC cells and inhibited cell proliferation, migration, and invasion of sorafenib-resistant HCC cells. Exosomes with circ_0032704 inhibition also inhibited tumor growth in vivo. The expression of circ_0032704 in exosomes was stable and possessed diagnostic value. Conclusion: Circ_0032704 enhanced sorafenib resistance in HCC and promoted the malignant development of sorafenib-resistant HCC. Circ_0032704 could be transported by exosomes, and exosomal circ_0032704 had diagnostic value.

13.
Small ; 20(34): e2401053, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38597730

RESUMEN

Single-component electrocatalysts generally lead to unbalanced adsorption of OH- and urea during urea oxidation reaction (UOR), thus obtaining low activity and selectivity especially when oxygen evolution reaction (OER) competes at high potentials (>1.5 V). Herein, a cross-alignment strategy of in situ vertically growing Ni(OH)2 nanosheets on 2D semiconductor g-C3N4 is reported to form a hetero-structured electrocatalyst. Various spectroscopy measurements including in situ experiments indicate the existence of enhanced internal electric field at the interfaces of vertical Ni(OH)2 and g-C3N4 nanosheets, favorable for balancing adsorption of reaction intermediates. This heterojunction electrocatalyst shows high-selectivity UOR compared to pure Ni(OH)2, even at high potentials (>1.5 V) and large current density. The computational results show the vertical heterojunction could steer the internal electric field to increase the adsorption of urea, thus efficiently avoiding poisoning of strongly adsorbed OH- on active sites. A membrane electrode assembly (MEA)-based electrolyzer with the heterojunction anode could operate at an industrial-level current density of 200 mA cm-2. This work paves an avenue for designing high-performance electrocatalysts by vertical cross-alignments of active components.

14.
Sci Rep ; 14(1): 8743, 2024 04 16.
Artículo en Inglés | MEDLINE | ID: mdl-38627506

RESUMEN

The IVa subfamily of glycine-rich proteins (GRPs) comprises a group of glycine-rich RNA binding proteins referred to as GR-RBPa here. Previous studies have demonstrated functions of GR-RBPa proteins in regulating stress response in plants. However, the mechanisms responsible for the differential regulatory functions of GR-RBPa proteins in different plant species have not been fully elucidated. In this study, we identified and comprehensively studied a total of 34 GR-RBPa proteins from five plant species. Our analysis revealed that GR-RBPa proteins were further classified into two branches, with proteins in branch I being relatively more conserved than those in branch II. When subjected to identical stresses, these genes exhibited intensive and differential expression regulation in different plant species, corresponding to the enrichment of cis-acting regulatory elements involving in environmental and internal signaling in these genes. Unexpectedly, all GR-RBPa genes in branch I underwent intensive alternative splicing (AS) regulation, while almost all genes in branch II were only constitutively spliced, despite having more introns. This study highlights the complex and divergent regulations of a group of conserved RNA binding proteins in different plants when exposed to identical stress conditions. These species-specific regulations may have implications for stress responses and adaptations in different plant species.


Asunto(s)
Plantas , Secuencias Reguladoras de Ácidos Nucleicos , Plantas/genética , Plantas/metabolismo , Estrés Fisiológico/genética , Proteínas de Unión al ARN/genética , Proteínas de Unión al ARN/metabolismo , Glicina/metabolismo , Regulación de la Expresión Génica de las Plantas , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Filogenia
15.
Opt Express ; 32(6): 9219-9226, 2024 Mar 11.
Artículo en Inglés | MEDLINE | ID: mdl-38571160

RESUMEN

Space-air-sea communication networks are of great interest to meet the demand for close and seamless connections between space, land, and ocean environments. Wireless light communication can expand network coverage from land to the sky and even the ocean while offering enhanced anti-interference capabilities. Here, we propose and establish an all-light communication network (ALCN) for space-air-sea integrated interconnection, which merges underwater blue light communication, wireless white light communication, solar-blind deep ultraviolet light communication and laser diode-based space communication. Ethernet switches and the Transmission Control Protocol are used for space-air-sea light interconnection. Experimental results show that the ALCN supports wired and wireless device access simultaneously. Bidirectional data transmission between network nodes is demonstrated, with a maximum packet loss ratio of 5.80% and a transmission delay below 74 ms. The proposed ALCN provides a promising scheme for future space-air-sea interconnections towards multiterminal, multiservice applications.

16.
Genes (Basel) ; 15(4)2024 03 25.
Artículo en Inglés | MEDLINE | ID: mdl-38674335

RESUMEN

The starch synthase (SS) plays important roles in regulating plant growth and development and responding to adversity stresses. Although the SS family has been studied in many crops, it has not been fully identified in sweet potato and its two related species. In the present study, eight SSs were identified from Ipomoea batatas (I. batata), Ipomoea trifida (I. trifida), and Ipomoea trlioba (I. trlioba), respectively. According to the phylogenetic relationships, they were divided into five subgroups. The protein properties, chromosomal location, phylogenetic relationships, gene structure, cis-elements in the promoter, and interaction network of these proteins were also analyzed; stress expression patterns were systematically analyzed; and real-time polymerase chain reaction (qRT-PCR) analysis was performed. Ipomoea batatas starch synthase (IbSSs) were highly expressed in tuber roots, especially Ipomoea batatas starch synthase 1 (IbSS1) and Ipomoea batatas starch synthase 6 (IbSS6), which may play an important role in root development and starch biosynthesis. At the same time, the SS genes respond to potassium deficiency, hormones, cold, heat, salt, and drought stress. This study offers fresh perspectives for enhancing knowledge about the roles of SSs and potential genes to enhance productivity, starch levels, and resistance to environmental stresses in sweet potatoes.


Asunto(s)
Regulación de la Expresión Génica de las Plantas , Ipomoea batatas , Filogenia , Proteínas de Plantas , Almidón Sintasa , Almidón Sintasa/genética , Almidón Sintasa/metabolismo , Ipomoea batatas/genética , Ipomoea batatas/crecimiento & desarrollo , Ipomoea batatas/enzimología , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Estrés Fisiológico/genética , Familia de Multigenes , Genoma de Planta/genética , Ipomoea/genética
17.
Environ Toxicol ; 39(6): 3473-3480, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38450827

RESUMEN

Cholelithiasis is a common digestive disease that drives a myriad of adverse complications. The correlation between sarcopenia and various digestive disorders has been extensively researched, whereas its association with cholelithiasis remains unreported. We aimed to investigate the association through prospective and Mendelian randomization (MR) analyses and establish a quantitative score reflecting the impact of sarcopenia-related markers on cholelithiasis. The prospective study involved 448 627 participants from the UK Biobank. Cox proportional hazard models were employed to investigate the correlation between sarcopenia-related markers and cholelithiasis. To quantitatively assess cholelithiasis risk, the SARCHO score was derived from a multivariable Cox model. Bidirectional two-sample MR analysis was conducted to validate the causal association. A total of 16 738 individuals developed cholelithiasis during a median follow-up of 12 years. Hazard ratios (HRs) of cholelithiasis decreased stepwise over skeletal muscle index tertiles (highest tertile: reference; middle tertile: 1.23, p < .001; lowest tertile: 1.33, p < .001). The tertiles of grip strength showed a similar pattern. Individuals with slow walking pace had a higher risk of cholelithiasis compared to those with normal walking pace (HR 1.23; p < .001). Our SARCHO score better quantifies the risk of cholelithiasis. MR analysis showed a causal relationship between muscle mass and cholelithiasis (OR 0.81; p < .001). No causal effect of cholelithiasis on lean mass was observed. Prospective and MR analyses have consistently demonstrated an increased risk of cholelithiasis in individuals with decreased muscle mass. Additionally, SARCHO score further quantified the cholelithiasis occurrence risk. These findings provide compelling evidence for muscle strengthening in preventing cholelithiasis.


Asunto(s)
Colelitiasis , Análisis de la Aleatorización Mendeliana , Sarcopenia , Humanos , Sarcopenia/epidemiología , Colelitiasis/epidemiología , Estudios Prospectivos , Femenino , Masculino , Persona de Mediana Edad , Biomarcadores/sangre , Anciano , Adulto , Modelos de Riesgos Proporcionales , Factores de Riesgo
18.
Fitoterapia ; 174: 105866, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38378134

RESUMEN

A total of 12 abietane diterpenoids were isolated and identified from Rosmarinus officinalis in which 6 ones were undescribed compounds. Their structures were illuminated by the HRESIMS, NMR, and ECD methods and named as rosmarinusin Q-V (1-6). It worthy mentioned that rosmarinusin Q was a novel abietane diterpenoid with 6/6/5 skeleton whose C ring was an α,ß-unsaturated five-element ketone. All the compounds and four compounds (13-16) reported in our previous paper were evaluated their anti-neuroinflammatory activities on the LPS-induced BV2 cells. Compounds 5, 8, 9, 11, and 15 displayed significant anti-neuroinflammatory activity at the concentration of 10, 20, and 40 µM respectively. These results confirmed that R. officinalis contained abundant abietane diterpenoids and these compounds showed potential values of anti-neuroinflammation which could be developed as neuroprotective agents for the treatment of nerve damage caused by inflammation.


Asunto(s)
Diterpenos , Rosmarinus , Abietanos/farmacología , Abietanos/química , Rosmarinus/química , Estructura Molecular , Espectroscopía de Resonancia Magnética , Diterpenos/farmacología , Diterpenos/química
19.
Genes (Basel) ; 15(2)2024 02 13.
Artículo en Inglés | MEDLINE | ID: mdl-38397226

RESUMEN

The LBD family is a plant-specific transcription factor family that plays an important role in a variety of biological processes. However, the function of IbLBD genes in sweet potato remains unclear. In this study, we identified a total of 53 IbLBD genes in sweet potato. Genetic structure showed that most of the IbLBD genes contained only two exons. Following the phylogenetic investigation, the IbLBD gene family was separated into Class I (45 members) and Class II (8) members. Both classes of proteins contained relatively conservative Motif1 and Motif2 domains. The chromosomal locations, gene duplications, promoters, PPI network, and GO annotation of the sweet potato LBD genes were also investigated. Furthermore, gene expression profiling and real-time quantitative PCR analysis showed that the expression of 12 IbLBD genes altered in six separate tissues and under various abiotic stresses. The IbLBD genes belonging to Class I were mostly expressed in the primary root, the pencil root, and the leaves of sweet potatoes, while the genes belonging to Class II were primarily expressed in the various sweet potato roots. The IbLBD genes belonging to Class I were mostly expressed in the primary root, the pencil root, and the leaves of sweet potatoes, while the genes belonging to Class II were primarily expressed in the fibrous root, pencil root, and tuber root.


Asunto(s)
Ipomoea batatas , Ipomoea batatas/genética , Ipomoea batatas/metabolismo , Filogenia , Estrés Fisiológico , Factores de Transcripción/genética , Factores de Transcripción/metabolismo , Perfilación de la Expresión Génica
20.
ACS Omega ; 9(7): 8274-8286, 2024 Feb 20.
Artículo en Inglés | MEDLINE | ID: mdl-38405493

RESUMEN

Nonalcoholic fatty liver disease (NAFLD) is a prevalent global liver disorder, posing substantial health risks. Britanin, a bioactive sesquiterpene lactone extracted from Inula japonica, has demonstrated antidiabetic, hypolipidemic, and hepatoprotective attributes. Nonetheless, the precise impact of Britanin on NAFLD and the intricate biological mechanisms underpinning this interaction remain unexplored. We integrated computer-aided methods to unearth shared biological targets and signaling pathways associated with both Britanin and NAFLD. A network was constructed by compiling putative targets associated with Britanin and NAFLD, followed by a stringent screening of key targets and mechanisms through protein-protein interaction analysis along with GO and KEGG pathway enrichment analyses. Molecular docking was integrated as an evaluation tool, culminating in the identification of HO-1 as the pivotal therapeutic target, showcasing a satisfactory binding affinity. The primary mechanism was ascribed to biological processes and pathways linked to oxidative stress, as evidenced by the outcomes of enrichment analyses. Of these, the AMPK/SREBP1c pathway assumed centrality in this mechanism. Furthermore, in vivo experiments substantiated that Britanin effectively curtailed NAFLD development by ameliorating liver injury, modulating hyperlipidemia and hepatic lipid accumulation, and alleviating oxidative stress and apoptosis. In summary, this study demonstrates the potential of Britanin as a promising therapeutic drug against NAFLD.

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