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1.
Heliyon ; 10(16): e36332, 2024 Aug 30.
Artículo en Inglés | MEDLINE | ID: mdl-39253115

RESUMEN

In recent years, environmental pollution has started to threaten global economies. The understanding of consumer behavior within the context of sustainable development has become increasingly important to deal with this growing ecological complexity. Urbanization has accelerated in Pakistan, resulting in urban consumers raising more environmental concerns and promoting eco-friendly products. These concerns have demonstrated their commitment to sustainability and pro-environmental behaviors, such as reducing waste materials (e.g., plastics) and pollutants (i.e., smoke, dust, etc.), thus supporting eco-friendly behaviors. Today, Pakistan's urban consumers are well-aware of environmental complexities. As such, environmental knowledge is the driver of consumers' pro-environmental behavior, affective commitment and social capital also compel individuals to acquire ecological knowledge to enhance consumer behavior. This research considers customers' environmental knowledge and affective commitment, both of which actively contribute to pro-environmental activity. It explores the relationship between environmental knowledge, affection commitment, social capital, and environmental behavior in Pakistan. Data was gathered from Pakistan's urban customers and analyzed using Covariance-based Structural Equation Modeling (CB-SEM). The results indicate that affective commitment and social capital have a positive and significant effect on environmental knowledge and behavior. Notably, the relationship between social capital, affective commitment, and environmental behavior is mediated by knowledge of environmental issues. Through its findings, this study fosters an understanding of environmental behavior and explains the sense of responsibility and greater commitment in individuals, which thus leads them toward sustainability.

2.
Cancer Med ; 13(17): e70169, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39225546

RESUMEN

BACKGROUND: Colorectal cancer (CRC) is a prevalent and lethal tumor, with metastasis being the leading cause of mortality. Previous research has indicated that the long non-coding RNA (lncRNA) CCAT2 is involved in the regulation of various tumor progression mechanisms. However, the precise role of CCAT2 in CRC proliferation and metastasis remains ambiguous. This study seeks to elucidate the mechanisms through which CCAT2 influences CRC. METHODS: High-throughput sequencing and RT-qPCR were used to detect CCAT2 expression in CRC. Functional analyses including CCK8, colony formation, wound healing migration, transwell chamber, and Muse® Cell Analyzer assays were performed to study the effects of CCAT2 gene deletion on CRC cells. RNA-pulldown and protein mass spectrometry were employed to identify the interaction between CCAT2 and GNB2 protein. RESULTS: Increased CCAT2 expression was found in CRC, especially in metastatic CRC. Deletion of CCAT2 gene inhibited CRC cell proliferation, migration, and invasion while promoting apoptosis. The interaction between CCAT2 and GNB2 protein was shown to modulate GNB2 protein alterations and affect the ERK and Wnt signaling pathways, thereby promoting CRC proliferation and metastasis. CONCLUSION: CCAT2 plays a crucial role in CRC progression by modulating the ERK and Wnt signaling pathways through its interaction with GNB2. These findings highlight the importance of CCAT2 as a key regulatory element in the mechanisms underlying CRC proliferation and metastasis.


Asunto(s)
Movimiento Celular , Proliferación Celular , Neoplasias Colorrectales , Regulación Neoplásica de la Expresión Génica , ARN Largo no Codificante , Vía de Señalización Wnt , Animales , Femenino , Humanos , Masculino , Ratones , Persona de Mediana Edad , Apoptosis , Línea Celular Tumoral , Neoplasias Colorrectales/patología , Neoplasias Colorrectales/genética , Neoplasias Colorrectales/metabolismo , Sistema de Señalización de MAP Quinasas , Metástasis de la Neoplasia , ARN Largo no Codificante/genética , ARN Largo no Codificante/metabolismo
3.
Int J Biol Macromol ; 280(Pt 2): 135903, 2024 Sep 21.
Artículo en Inglés | MEDLINE | ID: mdl-39313059

RESUMEN

Straw is an abundant renewable biomass resource material. Lignin contained in straw is a unique natural aromatic compound in nature. At present, it is urgent to find ways to realize the higher value of natural lignin resources. In this study, alkali lignin was separated from rice straw by hydrothermal method in NaOH solution, which was prepared lignin nanoparticles by a simple green anti-solvent method. The obtained lignin nanoparticles had excellent anti-tyrosinase activity (IC50 = 0.329 mg mL-1) and anti-oxidation performance (IC50 = 0.0451 mg mL-1). Meanwhile, through the analysis of tyrosinase inhibition kinetics, it is concluded that the tyrosinase inhibition by lignin nanoparticles belongs to mixed inhibition. The affinity of lignin nanoparticles to the free enzyme is greater than that of enzyme and substrate complex. In addition, lignin nanoparticles were added to chitosan solution for compounding, then the composite films for fruit preservation were prepared by casting method. The experimental results show that the composite membrane can effectively extend the shelf life of fruits, which is expected to achieve a broader application in the field of fruit preservation and food packaging.

4.
Cell Biosci ; 14(1): 87, 2024 Jun 29.
Artículo en Inglés | MEDLINE | ID: mdl-38951864

RESUMEN

BACKGROUND: Zinc finger SWIM-type containing 4 (ZSWIM4) is a zinc finger protein with its function largely uncharacterized. In this study, we aimed to investigate the role of ZSWIM4 in gastrointestinal stromal tumors (GISTs). RESULTS: We found that ZSWIM4 expression is inhibited by the predominantly mutated protein KIT in GISTs, while conversely, ZSWIM4 inhibits KIT expression and downstream signaling. Consistent with the observation, ZSWIM4 inhibited GIST cell survival and proliferation in vitro. RNA sequencing of GISTs from KITV558A/WT mice and KITV558A/WT/ZSWIM4-/- mice showed that loss of ZSWIM4 expression increases the expression of circadian clock pathway member BMAL1 which contributes to GIST cell survival and proliferation. In addition, we found that KIT signaling increases the distribution of ZSWIM4 in the nucleus of GIST cells, and which is important for its inhibition of KIT and BMAL1. In agreement with the results in vitro, the in vivo studies showed that ZSWIM4 deficiency increases the tumorigenesis of GISTs in KITV558A/WT mice. CONCLUSIONS: Taken together, our results revealed that the entry of ZSWIM4 to the nucleus is important for its inhibition of KIT and BMAL1, ultimately attenuating GIST tumorigenesis. The results provide a novel insight in the understanding of signal transduction in GISTs and lay strong theoretical basis for the advancement of GIST treatment.

5.
Asian Spine J ; 18(3): 346-353, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38917856

RESUMEN

STUDY DESIGN: Retrospective cohort study. PURPOSE: To investigate the long-term clinical and radiological outcomes of selective fusion for rotatory olisthesis (RO) in degenerative lumbar scoliosis (DLS). OVERVIEW OF LITERATURE: DLS is often associated with RO, and selective fusion of RO is a common surgical treatment option. However, the clinical and radiological outcomes remain controversial. METHODS: A cohort of 54 consecutive patients with DLS and RO was included in the study. All the included patients underwent selective RO fusion and at least 2 years of follow-up. They were divided into two groups: group 1 with a curve <30° and group 2 with a curve ≥30°. The clinical outcomes were evaluated by the Oswestry Disability Index (ODI) and Numerical Rating Scale. The radiological assessment included RO location, offset and subluxated-disc orientation, Cobb angle, and coronal as well as sagittal alignments. RESULTS: The offset value was greater in group 2 than in group 1 (13.4±4.7 mm vs. 9.3±3.5 mm, p<0.001). The subluxated disc was mainly oriented to the concave side in group 2 (15/21) but to the convex side in group 1 (20/33) (p =0.022). Group 2 had a higher rate of postoperative adjacent RO than group 1 (14/21 vs. 1/33, p<0.001). The ODI was comparable between both groups preoperatively but higher at the final follow-up in group 2 (34.9±9.5) than in group 1 (24.4±6.2). In the multiple logistic regression analysis, the thoracolumbar/lumbar curve was identified as the risk factor for postoperative adjacent RO (odds ratio, 1.400; p=0.007). The receiver operating characteristic analysis verified it with an area under the curve of 0.960 (p<0.001). CONCLUSIONS: The clinical and radiological outcomes were maintained well in group 1 but not in group 2. Selective RO fusion in DLS with a lumbar curve <30° is a rational option. However, it should be avoided in those with a lumbar curve >30° because of a higher complication rate and a worse clinical outcome at the final follow-up.

7.
Oncogene ; 43(27): 2078-2091, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38760447

RESUMEN

The aberrant activation of RAS/RAF/MEK/ERK signaling is important for KIT mutation-mediated tumorigenesis of gastrointestinal stromal tumor (GIST). In this study, we found that inhibition of RAF1 suppresses the activation of both wild-type KIT and primary KIT mutations in GIST, with primary KIT mutations showing greater sensitivity. This suggests a positive feedback loop between KIT and RAF1, wherein RAF1 facilitates KIT signaling. We further demonstrated that RAF1 associates with KIT and the kinase activity of RAF1 is necessary for its contribution to KIT activation. Accordingly, inhibition of RAF1 suppressed cell survival, proliferation, and cell cycle progression in vitro mediated by both wild-type KIT and primary KIT mutations. Inhibition of RAF1 in vivo suppressed GIST growth in a transgenic mouse model carrying germline KIT/V558A mutation, showing a similar treatment efficiency as imatinib, the first-line targeted therapeutic drug of GIST, while the combination use of imatinib and RAF1 inhibitor further suppressed tumor growth. Acquisition of drug-resistant secondary mutation of KIT is a major cause of treatment failure of GIST following targeted therapy. Like wild-type KIT and primary KIT mutations, inhibition of RAF1 suppressed the activation of secondary KIT mutation, and the cell survival, proliferation, cell cycle progression in vitro, and tumor growth in vivo mediated by secondary KIT mutation. However, the activation of secondary KIT mutation is less dependent on RAF1 compared with that of primary KIT mutations. Taken together, our results revealed that RAF1 facilitates KIT signaling and KIT mutation-mediated tumorigenesis of GIST, providing a rationale for further investigation into the use of RAF1 inhibitors alone or in combination with KIT inhibitor in the treatment of GIST, particularly in cases resistant to KIT inhibitors.


Asunto(s)
Tumores del Estroma Gastrointestinal , Proteínas Proto-Oncogénicas c-kit , Proteínas Proto-Oncogénicas c-raf , Transducción de Señal , Tumores del Estroma Gastrointestinal/genética , Tumores del Estroma Gastrointestinal/tratamiento farmacológico , Tumores del Estroma Gastrointestinal/patología , Tumores del Estroma Gastrointestinal/metabolismo , Proteínas Proto-Oncogénicas c-kit/genética , Proteínas Proto-Oncogénicas c-kit/metabolismo , Animales , Proteínas Proto-Oncogénicas c-raf/metabolismo , Proteínas Proto-Oncogénicas c-raf/genética , Humanos , Ratones , Ratones Transgénicos , Proliferación Celular , Línea Celular Tumoral , Mutación , Mesilato de Imatinib/farmacología , Mesilato de Imatinib/uso terapéutico , Neoplasias Gastrointestinales/patología , Neoplasias Gastrointestinales/tratamiento farmacológico , Neoplasias Gastrointestinales/genética , Neoplasias Gastrointestinales/metabolismo
8.
J Colloid Interface Sci ; 671: 232-247, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-38810338

RESUMEN

Multi-functional MOF catalyst with oxidative- and acid- centers showed potential in olefins oxidative carboxylation to cyclic carbonates directly. In this work, a series of bimetallic MnZn-MOF-74 with different molar ratios of Mn and Zn were synthesized successfully through a one-pot facile method. Thoroughly characterization indicated that the existence of Zn regulated the valance state distribution of Mn in the obtained MnZn-MOF-74. Mn99.3Zn0.7-MOF-74 with the highest ratio of MnIII (61.3 %) performed the most efficient activity for olefin direct tandem oxidative carboxylation reaction using aqueous tert-butyl hydroperoxide oxidant under solvent-free condition of 90 °C, 1.0 MPa CO2 and 4 h. Mn99.3Zn0.7-MOF-74 also showed satisfactory versatility and recyclability. Based on the experiments, a feasible mechanism was presented. Thanks to the high ratio of active MnIII as main oxidative center, the coordination unsaturated bimetal Mn and Zn as Lewis-acid sites, O2- of metal - O as Lewis-base sites and combined effect with Bu4NBr cocatalyst, Mn99.3Zn0.7-MOF-74 presented efficient performance for the direct synthesis of cyclic carbonates from olefins. The metal Zn in MOF can regulate the valance state distribution of Mn and result in efficient catalytic property, presenting a potential avenue for direct oxidative carboxylation reaction of olefins to cyclic carbonates synthesis.

9.
Environ Sci Pollut Res Int ; 31(24): 35018-35037, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38720125

RESUMEN

The impact of climate change has malformed the world's ecosystem, thus making humans call for environmental protection. Climate change, the biggest trauma of the twenty-first century, has made humans switch towards natural consumption. In this regard, the growing phenomenon of industrialization has spurred consumers to invest more in ecological products. Consuming eco-friendly products has several benefits; however, countries are still unable to satisfy the consumer's concern for the environment. The current study presents literature on environmental concerns, psychological well-being, willingness to pay for pro-environmental products, pro-environmental self-identity, and pro-environmental consumer behavior, which are required to ensure the consumer's organic behavior. The research used a questionnaire-driven methodology to gather data from 379 participants. Data analysis was conducted using statistical software packages, specifically SPSS (Version: 4.1.0.0). The suitability of the measurement model was evaluated through structural equation modeling (SEM), which was performed utilizing the SmartPLS. According to the research findings, there is a positive relationship between variables in the study, and individuals with greater levels of psychological well-being are more likely to engage in behaviors that promote sustainable consumption. In order to foster more sustainable consumption patterns in society, policymakers, marketers, and educators may find these findings to be valuable insights. As a result of its empirical exploration of these relationships, the study contributes to the growing body of literature on environmental psychology and sustainable marketing, emphasizing the important role psychological factors play in promoting a greener environment.


Asunto(s)
Conservación de los Recursos Naturales , Humanos , Encuestas y Cuestionarios , Comportamiento del Consumidor , Cambio Climático , Adulto , Ecosistema
10.
Mol Carcinog ; 63(7): 1334-1348, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38629424

RESUMEN

Gastrointestinal stromal tumors (GISTs) are predominately induced by KIT mutants. In this study, we found that four and a half LIM domains 2 (FHL2) was highly expressed in GISTs and KIT signaling dramatically increased FHL2 transcription while FHL2 inhibited KIT transcription. In addition, our results showed that FHL2 associated with KIT and increased the ubiquitination of both wild-type KIT and primary KIT mutants in GISTs, leading to decreased expression and activation of KIT although primary KIT mutants were less inhibited by FHL2 than wild-type KIT. In the animal experiments, loss of FHL2 expression in mice carrying germline KIT/V558A mutation which can develop GISTs resulted in increased tumor growth, but increased sensitivity of GISTs to imatinib treatment which is used as the first-line targeted therapy of GISTs, suggesting that FHL2 plays a role in the response of GISTs to KIT inhibitor. Unlike wild-type KIT and primary KIT mutants, we further found that FHL2 didn't alter the expression and activation of drug-resistant secondary KIT mutants. Taken together, our results indicated that FHL2 acts as the negative feedback of KIT signaling in GISTs while primary KIT mutants are less sensitive and secondary KIT mutants are resistant to the inhibition of FHL2.


Asunto(s)
Tumores del Estroma Gastrointestinal , Proteínas con Homeodominio LIM , Proteínas Musculares , Proteínas Proto-Oncogénicas c-kit , Transducción de Señal , Factores de Transcripción , Tumores del Estroma Gastrointestinal/genética , Tumores del Estroma Gastrointestinal/patología , Tumores del Estroma Gastrointestinal/metabolismo , Animales , Proteínas Proto-Oncogénicas c-kit/genética , Proteínas Proto-Oncogénicas c-kit/metabolismo , Proteínas con Homeodominio LIM/genética , Proteínas con Homeodominio LIM/metabolismo , Humanos , Proteínas Musculares/genética , Proteínas Musculares/metabolismo , Ratones , Factores de Transcripción/genética , Factores de Transcripción/metabolismo , Mutación , Carcinogénesis/genética , Regulación Neoplásica de la Expresión Génica , Mesilato de Imatinib/farmacología , Neoplasias Gastrointestinales/genética , Neoplasias Gastrointestinales/patología , Neoplasias Gastrointestinales/metabolismo , Línea Celular Tumoral , Ubiquitinación
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