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1.
Commun Biol ; 7(1): 827, 2024 Jul 07.
Artículo en Inglés | MEDLINE | ID: mdl-38972908

RESUMEN

The "hologenome" concept is an increasingly popular way of thinking about microbiome-host for marine organisms. However, it is challenging to track hologenome dynamics because of the large amount of material, with tracking itself usually resulting in damage or death of the research object. Here we show the simple and efficient holo-2bRAD approach for the tracking of hologenome dynamics in marine invertebrates (i.e., scallop and shrimp) from one holo-2bRAD library. The stable performance of our approach was shown with high genotyping accuracy of 99.91% and a high correlation of r > 0.99 for the species-level profiling of microorganisms. To explore the host-microbe association underlying mass mortality events of bivalve larvae, core microbial species changed with the stages were found, and two potentially associated host SNPs were identified. Overall, our research provides a powerful tool with various advantages (e.g., cost-effective, simple, and applicable for challenging samples) in genetic, ecological, and evolutionary studies.


Asunto(s)
Organismos Acuáticos , Animales , Organismos Acuáticos/genética , Invertebrados/genética , Invertebrados/fisiología , Microbiota , Polimorfismo de Nucleótido Simple
2.
Psychol Trauma ; 2024 Jun 27.
Artículo en Inglés | MEDLINE | ID: mdl-38934939

RESUMEN

OBJECTIVE: The present study investigates whether psychological factors influence the habituation or sensitization effect during repeated COVID-19 outbreaks. METHOD: A total of 838 social workers from districts affected by different waves of COVID-19 outbreaks (two waves, n = 387; one wave, n = 177; zero waves, n = 274) reported their posttraumatic stress disorder (PTSD) symptoms, psychological security, emotional regulation, resilience, spiritual health, and social support (December 2021). RESULTS: The rate of PTSD among social workers stands at 34% (cutoff point 38). Social workers developed a habituation response amid the ongoing pandemic, with individuals who encountered a higher number of COVID-19 outbreaks exhibiting fewer symptoms of PTSD (F = 3.04, p < .05, η² = 0.007). Social workers who experienced two outbreaks had significantly lower PTSD symptoms than those who did not experience any (p = .018, 95% CI [0.431, 4.635]). A bootstrapped multiple mediation analysis indicates that psychological security (indirect effect: ß = -0.590, 95% CI [-0.989, -0.192]) and emotional regulation (indirect effect: ß = -0.474, 95% CI [-0.899, -0.069]) completely mediate the association between outbreaks of COVID-19 and PTSD symptoms. CONCLUSIONS: The incidence of PTSD symptoms was high in social workers. Chinese social workers underwent a habituation effect after repeated outbreaks of COVID-19. Improving psychological security and emotional regulation can reduce PTSD symptoms due to the repeated outbreak of COVID-19 among the public. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

3.
Anal Chem ; 96(23): 9379-9389, 2024 Jun 11.
Artículo en Inglés | MEDLINE | ID: mdl-38805056

RESUMEN

Over the years, a number of state-of-the-art data analysis tools have been developed to provide a comprehensive analysis of data collected from gas chromatography-mass spectrometry (GC-MS). Unfortunately, the time shift problem remains unsolved in these tools. Here, we developed a novel comprehensive data analysis strategy for GC-MS-based untargeted metabolomics (AntDAS-GCMS) to perform total ion chromatogram peak detection, peak resolution, time shift correction, component registration, statistical analysis, and compound identification. Time shift correction was specifically optimized in this work. The information on mass spectra and elution profiles of compounds was used to search for inherent landmarks within analyzed samples to resolve the time shift problem across samples efficiently and accurately. The performance of our AntDAS-GCMS was comprehensively investigated by using four complex GC-MS data sets with various types of time shift problems. Meanwhile, AntDAS-GCMS was compared with advanced GC-MS data analysis tools and classic time shift correction methods. Results indicated that AntDAS-GCMS could achieve the best performance compared to the other methods.


Asunto(s)
Cromatografía de Gases y Espectrometría de Masas , Metabolómica , Cromatografía de Gases y Espectrometría de Masas/métodos , Metabolómica/métodos , Animales , Factores de Tiempo , Análisis de Datos
4.
BMC Plant Biol ; 24(1): 473, 2024 May 30.
Artículo en Inglés | MEDLINE | ID: mdl-38811869

RESUMEN

BACKGROUND: Carbon nano sol (CNS) can markedly affect the plant growth and development. However, few systematic analyses have been conducted on the underlying regulatory mechanisms in plants, including tobacco (Nicotiana tabacum L.). RESULTS: Integrated analyses of phenome, ionome, transcriptome, and metabolome were performed in this study to elucidate the physiological and molecular mechanisms underlying the CNS-promoting growth of tobacco plants. We found that 0.3% CNS, facilitating the shoot and root growth of tobacco plants, significantly increased shoot potassium concentrations. Antioxidant, metabolite, and phytohormone profiles showed that 0.3% CNS obviously reduced reactive oxygen species production and increased antioxidant enzyme activity and auxin accumulation. Comparative transcriptomics revealed that the GO and KEGG terms involving responses to oxidative stress, DNA binding, and photosynthesis were highly enriched in response to exogenous CNS application. Differential expression profiling showed that NtNPF7.3/NtNRT1.5, potentially involved in potassium/auxin transport, was significantly upregulated under the 0.3% CNS treatment. High-resolution metabolic fingerprints showed that 141 and 163 metabolites, some of which were proposed as growth regulators, were differentially accumulated in the roots and shoots under the 0.3% CNS treatment, respectively. CONCLUSIONS: Taken together, this study revealed the physiological and molecular mechanism underlying CNS-mediated growth promotion in tobacco plants, and these findings provide potential support for improving plant growth through the use of CNS.


Asunto(s)
Carbono , Metabolómica , Nicotiana , Reguladores del Crecimiento de las Plantas , Transcriptoma , Nicotiana/genética , Nicotiana/metabolismo , Nicotiana/crecimiento & desarrollo , Carbono/metabolismo , Reguladores del Crecimiento de las Plantas/metabolismo , Perfilación de la Expresión Génica , Metaboloma , Raíces de Plantas/metabolismo , Raíces de Plantas/crecimiento & desarrollo , Raíces de Plantas/genética , Brotes de la Planta/metabolismo , Brotes de la Planta/crecimiento & desarrollo , Brotes de la Planta/genética
5.
Ecotoxicol Environ Saf ; 279: 116491, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38805832

RESUMEN

Transplant treatment with chlorantraniliprole (CAP) is a proactive approach to protect transplanted plants from pests during early establishment and has been comprehensively applied in tobacco fields in Guangdong Province, China. However, it is not known whether the high dose of CAP in transplant treatments has lethal or sublethal effects on the generalist predator Rhynocoris fuscipes Fabricius (Hemiptera: Reduviidae). To address this concern, the mortalities of R. fuscipes were assessed when 2nd instar larvae of R. fuscipes were in direct contact with or consuming CAP and when their eggs were exposed to CAP. Furthermore, 2nd instar nymphs R. fuscipes were long-term exposed to CAP until they reached adulthood, and their life table parameters were determined. After exposure to CAP, the activity of detoxification enzymes (P450, CaeE and GST) and the functional respond of R. fuscipes to their preys Agrotis ipsilon larvae were determined. In this study, CAP at all concentrations did not significantly increase the mortality of 2nd instar of R. fuscipes nymphs in comparison with the control. The detoxification enzyme (P450, CarE and GST) activities and the number of A. ipsilon larvae consumed by R. fuscipes in the transplant treatment were not affected by CAP after 3-d or long-term exposure. These results indicated that CAP was harmless to R. fuscipes according to IOBC protocols. However, during the treatment of 2nd instar nymphs with a label rate of 15 g AI/ha and a 5× label rate of 75 g AI/ha, CAP significantly prolonged the pre-adult and pre-oviposition periods, and treated adults had lower oviposition. Attention should be given to the time interval between transplant treatment and the release of this biocontrol agent into the field to minimize the impact of CAP on the predator R. fuscipes.


Asunto(s)
Fertilidad , Insecticidas , Larva , Ninfa , Conducta Predatoria , ortoaminobenzoatos , Animales , ortoaminobenzoatos/toxicidad , Larva/efectos de los fármacos , Insecticidas/toxicidad , Ninfa/efectos de los fármacos , Ninfa/crecimiento & desarrollo , Ninfa/fisiología , Fertilidad/efectos de los fármacos , Conducta Predatoria/efectos de los fármacos , Hemípteros/efectos de los fármacos , Hemípteros/fisiología , China , Femenino , Heterópteros/efectos de los fármacos , Heterópteros/fisiología , Cadena Alimentaria
6.
Anal Chem ; 96(19): 7550-7557, 2024 May 14.
Artículo en Inglés | MEDLINE | ID: mdl-38706132

RESUMEN

Developing precise tumor cell-specific mitochondrial ferroptosis-related inhibition miRNA imaging methods holds enormous potential for anticancer drug screening and cancer treatment. Nevertheless, traditional amplification methods still tolerated the limited tumor specificity because of the "off-tumor" signal leakage resulting from their "always-active" sensing mode. To overcome this limitation, we herein developed a dual (exogenous 808 nm NIR light and endogenous APE1) activated nanoladder for precise imaging of mitochondrial ferroptosis-related miRNA with tumor cell specificity and improved imaging resolution. Exogenous NIR light-activation can regulate the ferroptosis-related inhibition miRNA imaging signals within mitochondria, and endogenous enzyme-activation can confine signals to tumor cells. Based on this dual activation design, off-tumor signals were greatly reduced and tumor-to-background contrast was enhanced with an improved tumor/normal discrimination ratio, realizing tumor cell-specific precise imaging of mitochondrial ferroptosis-related inhibition miRNA.


Asunto(s)
Ferroptosis , MicroARNs , Mitocondrias , Ferroptosis/efectos de los fármacos , Humanos , MicroARNs/metabolismo , MicroARNs/análisis , Mitocondrias/metabolismo , Animales , Ratones , Imagen Óptica , Línea Celular Tumoral , Rayos Infrarrojos , Nanopartículas/química
7.
Front Psychol ; 15: 1337969, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38708018

RESUMEN

This study applied an extended model of the theory of planed behavior (TPB) to compare the differences in waste separation behavior between children (ages 9 to 12, N = 339) and adults (ages 18 to 66, N = 379). We examined the relations among waste separation attitude, subjective norm, perceived behavioral control, knowledge, awareness, intention, and behavior. The results showed waste separation knowledge of children was less than that of adults. Structure equation model results also revealed robust differences between children and adults. For adults, TPB variables (attitude, subjective norm, and perceived behavioral control) and knowledge are significantly positively related to their waste separation intention. Meanwhile, perceived behavioral control and intention are positively related to adults' behavior. However, for children, only perceived behavioral control and awareness are positively related to intention, and perceived behavioral control is positively related to behavior. Moreover, the predictive power of the extended TPB model on children's waste separation intention and behavior are lower than those of adults. The different results may be due to children's immature cognitive abilities. This study enhanced the understanding of the different waste separation behavior determinants between children and adults. The findings are useful for developing tailored policies and promoting children's waste separation behavior.

8.
BMC Genomics ; 25(1): 354, 2024 Apr 09.
Artículo en Inglés | MEDLINE | ID: mdl-38594645

RESUMEN

The homeodomain-leucine zipper (HD-Zip) gene family plays a pivotal role in plant development and stress responses. Nevertheless, a comprehensive characterization of the HD-Zip gene family in kiwifruit has been lacking. In this study, we have systematically identified 70 HD-Zip genes in the Actinidia chinensis (Ac) genome and 55 in the Actinidia eriantha (Ae) genome. These genes have been categorized into four subfamilies (HD-Zip I, II, III, and IV) through rigorous phylogenetic analysis. Analysis of synteny patterns and selection pressures has provided insights into how whole-genome duplication (WGD) or segmental may have contributed to the divergence in gene numbers between these two kiwifruit species, with duplicated gene pairs undergoing purifying selection. Furthermore, our study has unveiled tissue-specific expression patterns among kiwifruit HD-Zip genes, with some genes identified as key regulators of kiwifruit responses to bacterial canker disease and postharvest processes. These findings not only offer valuable insights into the evolutionary and functional characteristics of kiwifruit HD-Zips but also shed light on their potential roles in plant growth and development.


Asunto(s)
Actinidia , Proteínas de Homeodominio , Proteínas de Homeodominio/genética , Genoma de Planta , Filogenia , Actinidia/genética , Leucina Zippers/genética , Regulación de la Expresión Génica de las Plantas , Proteínas de Plantas/genética , Perfilación de la Expresión Génica
9.
Shock ; 62(1): 119-126, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38662613

RESUMEN

ABSTRACT: Background : It is reported that circVMA21 has an inhibition effect on sepsis-induced acute kidney injury (AKI). Therefore, the underlying molecular mechanisms of circVMA21 in AKI are worthy of further investigation. Material and Methods : Lipopolysaccharide (LPS) was used to induce HK2 cell injury. CircVMA21, miR-337-3p and ZEB2 expression was tested by qRT-PCR. Cell growth was detected by CCK8 assay, EdU assay, and flow cytometry. Protein levels were examined by western blot. The levels of inflammatory factors and oxidative stress markers were measured to evaluate cell inflammatory response and oxidative stress. RNA relationship as verified by dual-luciferase reporter assay, RIP assay, and RNA pull-down assay. Results : CircVMA21 had decreased expression in AKI patients. Overexpressed circVMA21 alleviated LPS-induced HK2 cell inflammation, apoptosis, and oxidative stress. Moreover, circVMA21 sponged miR-337-3p, and miR-337-3p targeted ZEB2. The inhibitory effect of circVMA21 on LPS-induced HK2 cell injury was reversed by miR-337-3p overexpression, and ZEB2 overexpression abolished the promotion effect of miR-337-3p on LPS-induced HK2 cell injury. Conclusions : CircVMA21 could inhibit LPS-induced HK2 cell injury via miR-337-3p/ZEB2 axis.


Asunto(s)
Lesión Renal Aguda , Lipopolisacáridos , MicroARNs , ARN Circular , Caja Homeótica 2 de Unión a E-Box con Dedos de Zinc , Lipopolisacáridos/toxicidad , Humanos , Lesión Renal Aguda/metabolismo , Lesión Renal Aguda/patología , ARN Circular/genética , ARN Circular/metabolismo , MicroARNs/metabolismo , MicroARNs/genética , Caja Homeótica 2 de Unión a E-Box con Dedos de Zinc/metabolismo , Caja Homeótica 2 de Unión a E-Box con Dedos de Zinc/genética , Línea Celular , Estrés Oxidativo , Apoptosis/efectos de los fármacos
10.
MedComm (2020) ; 5(4): e537, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38617434

RESUMEN

Platinum resistance represents a major barrier to the survival of patients with ovarian cancer (OC). Cdc2-like kinase 2 (CLK2) is a major protein kinase associated with oncogenic phenotype and development in some solid tumors. However, the exact role and underlying mechanism of CLK2 in the progression of OC is currently unknown. Using microarray gene expression profiling and immunostaining on OC tissues, we found that CLK2 was upregulated in OC tissues and was associated with a short platinum-free interval in patients. Functional assays showed that CLK2 protected OC cells from platinum-induced apoptosis and allowed tumor xenografts to be more resistant to platinum. Mechanistically, CLK2 phosphorylated breast cancer gene 1 (BRCA1) at serine 1423 (Ser1423) to enhance DNA damage repair, resulting in platinum resistance in OC cells. Meanwhile, in OC cells treated with platinum, p38 stabilized CLK2 protein through phosphorylating at threonine 343 of CLK2. Consequently, the combination of CLK2 and poly ADP-ribose polymerase inhibitors achieved synergistic lethal effect to overcome platinum resistance in patient-derived xenografts, especially those with wild-type BRCA1. These findings provide evidence for a potential strategy to overcome platinum resistance in OC patients by targeting CLK2.

11.
RSC Med Chem ; 15(4): 1198-1209, 2024 Apr 24.
Artículo en Inglés | MEDLINE | ID: mdl-38665835

RESUMEN

Ferroptosis is a nonapoptotic, iron-catalyzed form of regulated cell death. It has been shown that high glucose (HG) could induce ferroptosis in vascular endothelial cells (VECs), consequently contributing to the development of various diseases. This study synthesized and evaluated a series of novel ferrostatin-1 (Fer-1) derivatives fused with a benzohydrazide moiety to prevent HG-induced VEC ferroptosis. Several promising compounds showed similar or improved inhibitory effects compared to positive control Fer-1. The most effective candidate 12 exhibited better protection against erastin-induced ferroptosis and high glucose-induced ferroptosis in VECs. Mechanistic studies revealed that compound 12 prevented mitochondrial damage, reduced intracellular ROS accumulation, upregulated the expression of GPX4, and decreased the amounts of ferrous ion, LPO and MDA in VECs. However, compound 12 still exhibited undesirable microsomal stability like Fer-1, suggesting the need for further optimization. Overall, the present findings highlight ferroptosis inhibitor 12 as a potential lead compound for treating ferroptosis-associated vascular diseases.

12.
Animals (Basel) ; 14(8)2024 Apr 20.
Artículo en Inglés | MEDLINE | ID: mdl-38672384

RESUMEN

Spaghetti meat (SM) is a newly identified muscle abnormality that significantly affects modern broiler chickens, consequently exerting a substantial economic impact on the poultry industry worldwide. However, investigations into the meat quality and the underlying causative factors of SM in broilers remain limited. Therefore, this study was undertaken to systematically evaluate meat quality and muscle fiber characteristics of SM-affected meat. To elucidate the disparities between SM-affected and normal (NO) muscles in broiler chickens reared under identical conditions, we selected 18 SM-affected breast tissues and 18 NO breast tissues from 200 broiler chickens raised according to commercial standards under the same conditions for our study. The results showed that compared with the NO group, the muscle surface of the SM group lost integrity, similar to strip and paste. The brightness and yellowness values were significantly higher than those of the NO group. On the contrary, the shear force and protein were significantly lower in the SM group. Microscopic examination revealed that the muscle fibers in the SM group were lysed, necrotic, and separated from each other, with a large number of neutrophils diffusely distributed on the sarcolemma and endometrium. Thirty-five significantly different metabolites were observed in the breast muscles between both groups. Among them, the top differential metabolites-14,15-DiHETrE, isotretinoin, L-malic acid, and acetylcysteine-were mainly enriched in lipid metabolism and inflammatory pathways, including linoleic acid, arachidonic acid, phenylalanine, and histidine metabolism. Overall, these findings not only offer new insights into the meat quality and fiber traits of SM but also contribute to the understanding of potential mechanisms and nutritional regulators for SM myopathy.

13.
Phys Chem Chem Phys ; 26(11): 9074, 2024 Mar 13.
Artículo en Inglés | MEDLINE | ID: mdl-38439689

RESUMEN

Correction for 'Ionic migration induced loss analysis of perovskite solar cells: a poling study' by Xue Zheng et al., Phys. Chem. Chem. Phys., 2022, 24, 7805-7814, https://doi.org/10.1039/D1CP05450C.

14.
J Environ Manage ; 354: 120267, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38408392

RESUMEN

Waste threatens human health and the environment. How can we persuade people to participate in waste separation? In order to address this challenge, the present experimental study (N = 280) investigated the effects of perceived importance (high, medium, low) and language intensity (assertive, non-assertive) on people's intention to separate waste based on the social influence theory and the value-identity-personal norm model. The results showed that high perceived importance and assertive language were positively and significantly associated with waste separation intention. Furthermore, the mediating analysis revealed that environmental self-identity and personal norm were serial mediators in the relationship between perceived importance and waste separation intention. Therefore, strengthening perceived importance and enhancing internalization processes (environmental self-identity and personal norm) contribute to promoting waste separation intention. The findings of this study provide both theoretical and practical contributions to promote waste separation.


Asunto(s)
Intención , Lenguaje , Humanos , Encuestas y Cuestionarios
15.
Plant Physiol Biochem ; 207: 108413, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38330776

RESUMEN

Ethylene responsive factor (ERF) is a plant-specific transcription factor that plays a pivotal regulatory role in various stress responses. Although the genome of tobacco harbors 375 ER F genes, the functional roles of the majority of these genes remain unknown. Expression pattern analysis revealed that NtERF283 was induced by water deficit and salt stresses and mainly expressed in the roots and leaves. Subcellular localization and transcriptional activity assays confirmed that NtERF283 was localized in the nucleus and exhibited transcriptional activity. In comparison to the wild-type (WT), the NtERF283-overexpressing transgenic plants (OE) exhibited enhanced water deficit tolerance, whereas the knockout mutant erf283 displayed contrasting phenotypes. Transcriptional analysis demonstrated that several oxidative stress response genes were significantly altered in OE plants under water deficit conditions. 3,3'-diaminobenzidine (DAB) and nitroblue tetrazolium (NBT) staining showed that erf283 accumulated a higher level of reactive oxygen species (ROS) compared to the WT under water deficit conditions. Conversely, OE plants displayed the least amount of ROS accumulation. Furthermore, the activities of POD and SOD were higher in OE plants and lower in erf283, suggesting that NtERF283 enhanced the capacity to effectively eliminate ROS, consequently enhancing water deficit tolerance in tobacco. These findings strongly indicate the significance of NtERF283 in promoting tobacco water deficit tolerance through the activation of the antioxidant system.


Asunto(s)
Antioxidantes , Agua , Antioxidantes/metabolismo , Especies Reactivas de Oxígeno/metabolismo , Agua/metabolismo , Estrés Oxidativo , Plantas Modificadas Genéticamente/metabolismo , Nicotiana/genética , Regulación de la Expresión Génica de las Plantas , Proteínas de Plantas/metabolismo , Estrés Fisiológico/genética
16.
J Med Virol ; 96(2): e29402, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38380744

RESUMEN

Few real-world analyses of the ability of vaccines to protect against severe COVID-19 have been published. In this real-world study, we compared the prevalence of severe or critical COVID-19 between patients at our hospital who were not vaccinated against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) or who had been vaccinated partial, full, or booster course with the CoronaVac, containing inactivated virus propagated in Vero cells. Data from electronic health records were retrospectively analyzed for 4090 inpatients with COVID-19 who were treated at West China Hospital, Chengdu between December 6, 2022 and February 14, 2023. Clinicodemographic characteristics and COVID-19 severity were compared among patients who had been vaccinated 0, 1, 2 or more times with inactivated vaccine CoronaVac. To evaluate vaccine effectiveness over time, we plotted Kaplan-Meier curves with the percentage of patients with the outcome of severe or critical COVID-19 from the time of their last vaccine dose according to vaccination status. Ordinal logistic regression was used to assess associations between vaccination status and COVID-19 severity. Cox regression was used to identify risk factors for severe or critical COVID-19. Among the 4090 patients, 171 had been vaccinated partial and 423 twice with the full CoronaVac regimens, while 905 had been vaccinated three times (boosted). The prevalence of severe or critical COVID-19 among patients was 11 percentage points lower among those vaccinated (40%) at least twice than among those unvaccinated (51%) (p<0.001), while it was 10% points lower among those who had received a booster (41%) than among those unvaccinated (51%) (p<0.001). Protection against severe or critical COVID-19 due to vaccination was significantly weakened by being older than 65 years, being male, or having diabetes, chronic heart disease, autoimmune disease, or chronic lung disease. Completing a full course of immunization with inactivated vaccine CoronaVac against SARS-CoV-2 can reduce the risk of severe or critical COVID-19 due to the Omicron BA.5 subvariant.


Asunto(s)
COVID-19 , Chlorocebus aethiops , Animales , Humanos , Masculino , Femenino , COVID-19/epidemiología , COVID-19/prevención & control , SARS-CoV-2 , Estudios Retrospectivos , Células Vero , China/epidemiología , Vacunas de Productos Inactivados
17.
BMC Cancer ; 24(1): 95, 2024 Jan 17.
Artículo en Inglés | MEDLINE | ID: mdl-38233827

RESUMEN

BACKGROUND: Sarcopenia has received increasing attention in non-small cell lung cancer (NSCLC). Red blood cell distribution width (RDW) is a significant component of the complete blood count and indicates the heterogeneity of erythrocyte volume. Little information is known about RDW in relation to sarcopenia in early-stage (IA-IIIA) NSCLC. The purpose of the present study was to investigate the association between RDW and sarcopenia risk in early-stage NSCLC patients. METHODS: This study included 378 patients with pathologically confirmed stage IA-IIIA NSCLC. Sarcopenia was defined by measuring the skeletal muscle index (SMI) at the eleventh thoracic vertebra level. The maximum Youden index on the receiver operating characteristic (ROC) curve was used to estimate the cutoff value for RDW to predict sarcopenia. Logistic regression analyses were carried out to assess the independent risk factors for sarcopenia in NSCLC. RESULTS: The ROC curve indicated that the best cutoff point for RDW to predict sarcopenia was 12.9 (sensitivity of 43.80% and specificity of 76.76%, respectively). Moreover, there were significant differences in hemoglobin (p < 0.001), comorbidities (p = 0.001), histological type (p = 0.002), and cancer stage (p = 0.032) between the high RDW and low RDW groups. Logistic regression analyses revealed that high RDW is an independent risk factor for sarcopenia in early-stage NSCLC. CONCLUSION: RDW is associated with sarcopenia risk in early-stage NSCLC.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Sarcopenia , Carcinoma Pulmonar de Células Pequeñas , Humanos , Carcinoma de Pulmón de Células no Pequeñas/patología , Sarcopenia/patología , Neoplasias Pulmonares/patología , Estudios Retrospectivos , Carcinoma Pulmonar de Células Pequeñas/patología , Eritrocitos/patología , Curva ROC , Pronóstico
18.
Food Chem X ; 21: 101063, 2024 Mar 30.
Artículo en Inglés | MEDLINE | ID: mdl-38162040

RESUMEN

The effects of four polyphenols-chlorogenic acid (CA), gallic acid (GA), epicatechin gallate (ECG), and epigallocatechin gallate (EGCG) on the structure, gel properties, and interaction mechanisms of myofibrillar protein (MP) were studied. The changes in MP structure with polyphenols were analyzed using circular dichroism. The ultraviolet and fluorescence spectra and thermodynamic analysis indicated that the type of binding between the four polyphenols with the MP was static quenching of complex formation. GA had a more pronounced effect on improving MP gel properties. Finally, molecular docking determined that the affinity of the protein with the four polyphenols was in the order EGCG > ECG > CA > GA, with the main interaction force being hydrophobic interactions and hydrogen bonding, but hydrogen bonding dominates the interaction between GA and the protein. The findings illuminate the mechanism of MP binding to different polyphenols and facilitate the study of polyphenol-protein properties.

19.
BMJ Open Ophthalmol ; 9(1)2024 Jan 17.
Artículo en Inglés | MEDLINE | ID: mdl-38237934

RESUMEN

OBJECTIVE: To explore different performances in the magnocellular (MC) and parvocellular (PC) visual pathways in patients with primary open-angle glaucoma (POAG) and to objectively assess impairment in early stage of POAG. METHODS AND ANALYSIS: This is a cross-sectional study. MC and PC visual pathways were assessed using isolated-check visual evoked potential (ic-VEP). Visual acuity, intraocular pressure, fundus examination, optical coherence tomography and visual field were measured. Signal-to-noise ratios (SNRs), mediated by ic-VEP were recorded. The Spearman's correlation analysis was used to estimate the relationships between visual functions and structures. Receiver-operating-characteristic (ROC) curves were used to estimate the accuracy in detection of early POAG. RESULTS: 60 participants (30 early POAG eyes and 30 age-matched control subjects) were recruited. MC visual pathway showed a non-linear response function, while PC visual pathway was a linear response function as contrast increased. Early POAG eyes exhibited significantly weaker initial contrast gains and lower maximum responses in the MC visual pathway (p=0.001, p=0.004, respectively). The SNRs at 8% and 32% depths of modulation (DOM) were significantly correlated with temporal-side retinal nerve fibre layer (RNFL) thickness in early POAG in MC-biased stimulation (p=0.017, p=0.020, respectively). The areas under ROC of 16% DOM were 0.780 (sensitivity 80.0%, specificity 63.3%) with the cut-off SNR of 2.07. CONCLUSIONS: The MC visual pathway was damaged in the early stage of POAG. The SNRs at 8% and 32% DOM of MC-biased stimulation were significantly correlated with temporal-side RNFL thickness in early POAG, which helped in understanding the mechanisms of visual impairment in the early stage of POAG.


Asunto(s)
Glaucoma de Ángulo Abierto , Humanos , Glaucoma de Ángulo Abierto/diagnóstico , Potenciales Evocados Visuales , Vías Visuales , Estudios Transversales , Células Ganglionares de la Retina
20.
Food Chem ; 441: 138366, 2024 May 30.
Artículo en Inglés | MEDLINE | ID: mdl-38199110

RESUMEN

The effect of adding apple high-methoxy pectin (HMP) (0-3 mg∙mL-1) on heat-induced gel characteristics of low concentration silver carp myofibrillar protein (MP) (15 mg∙mL-1) was studied. It was found that the hardness of gel increased by 20.6 times with adding 2 mg∙mL-1 HMP. Besides, HMP aided in the development of disulfide bonds and the aggregation of hydrophobic groups. During gel formation, the maximal storage modulus (G') of samples supplemented with 2 mg·mL-1 HMP was raised by a factor of 2.7. Of note, the images of SEM showed that protein and water were tightly combined with a proper amount of HMP and made its pores more uniform and dense. Meantime, the addition of moderate amounts of HMP enabled the formation of gels with favorable texture and performance at low concentration of MP was identified, which could provide a theoretical reference for the design and production of flesh low-calorie food gel.


Asunto(s)
Carpas , Malus , Animales , Calor , Pectinas/química , Interacciones Hidrofóbicas e Hidrofílicas , Geles/química , Reología/métodos
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