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1.
Analyst ; 2024 Sep 12.
Artigo em Inglês | MEDLINE | ID: mdl-39264159

RESUMO

In this study, a novel electrochemiluminescent (ECL) sensor for highly sensitive detection of trilobatin (Tri) was developed based on silver metal-organic frameworks (AgMOFs) and nitrogen-doped carbon quantum dots (N-CDs). N-CDs exhibited high ECL intensity but poor ECL stability, while AgMOFs had a large specific surface area, high porosity, and good adsorption properties. Compositing both of them not only improved the ECL stability of N-CDs, but also enhanced the ECL strength of materials, so AgMOF@N-CD composites were used as the luminophore of the sensor. Under the optimized conditions, the ECL sensor showed a linear range of 1.0 × 10-7 M to 1.0 × 10-3 M for the detection of Tri, and the detection limit was as low as 5.99 × 10-8 M (S/N = 3). In addition, the sensor had excellent reproducibility, stability, and anti-interference ability. It could be utilized for the detection of Tri in real samples with recoveries of 95.78-102.26%, indicating that the constructed ECL sensor for detecting Tri possessed better application prospects.

2.
Small ; : e2405157, 2024 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-39126174

RESUMO

Electrochemical oxygen reduction reaction (ORR) and carbon dioxide reduction reaction (CO2RR) are greatly significant in renewable energy-related devices and carbon-neutral closed cycle, while the development of robust and highly efficient electrocatalysts has remained challenges. Herein, a hybrid electrocatalyst, featuring axial N-coordinated Fe single atom sites on hierarchically N, P-codoped porous carbon support and Fe nanoclusters as electron reservoir (FeNCs/FeSAs-NPC), is fabricated via in situ thermal transformation of the precursor of a supramolecular polymer initiated by intermolecular hydrogen bonds co-assembly. The FeNCs/FeSAs-NPC catalyst manifests superior oxygen reduction activity with a half-wave potential of 0.91 V in alkaline solution, as well as high CO2 to CO Faraday efficiency (FE) of surpassing 90% in a wide potential window from -0.40 to -0.85 V, along with excellent electrochemical durability. Theoretical calculations indicate that the electron reservoir effect of Fe nanoclusters can trigger the electron redistribution of the atomic Fe moieties, facilitating the activation of O2 and CO2 molecules, lowering the energy barriers for rate-determining step, and thus contributing to the accelerated ORR and CO2RR kinetics. This work offers an effective design of electron coupling catalysts that have advanced single atoms coexisting with nanoclusters for efficient ORR and CO2RR.

3.
Artigo em Inglês | MEDLINE | ID: mdl-38901758

RESUMO

BACKGROUND: Schizophrenia is a prevalent mental disorder, leading to severe disability. Currently, the absence of objective biomarkers hinders effective diagnosis. This study was conducted to explore the aberrant spontaneous brain activity and investigate the potential of abnormal brain indices as diagnostic biomarkers employing machine learning methods. METHODS: A total of sixty-one schizophrenia patients and seventy demographically matched healthy controls were enrolled in this study. The static indices of resting-state functional magnetic resonance imaging (rs-fMRI) including amplitude of low frequency fluctuations (ALFF), fractional ALFF (fALFF), regional homogeneity (ReHo), and degree centrality (DC) were calculated to evaluate spontaneous brain activity. Subsequently, a sliding-window method was then used to conduct temporal dynamic analysis. The comparison of static and dynamic rs-fMRI indices between the patient and control groups was conducted using a two-sample t-test. Finally, the machine learning analysis was applied to estimate the diagnostic value of abnormal indices of brain activity. RESULTS: Schizophrenia patients exhibited a significant increase ALFF value in inferior frontal gyrus, alongside significant decreases in fALFF values observed in left postcentral gyrus and right cerebellum posterior lobe. Pervasive aberrations in ReHo indices were observed among schizophrenia patients, particularly in frontal lobe and cerebellum. A noteworthy reduction in voxel-wise concordance of dynamic indices was observed across gray matter regions encompassing the bilateral frontal, parietal, occipital, temporal, and insular cortices. The classification analysis achieved the highest values for area under curve at 0.87 and accuracy at 81.28% when applying linear support vector machine and leveraging a combination of abnormal static and dynamic indices in the specified brain regions as features. CONCLUSIONS: The static and dynamic indices of brain activity exhibited as potential neuroimaging biomarkers for the diagnosis of schizophrenia.


Assuntos
Encéfalo , Aprendizado de Máquina , Imageamento por Ressonância Magnética , Esquizofrenia , Humanos , Esquizofrenia/diagnóstico por imagem , Esquizofrenia/fisiopatologia , Imageamento por Ressonância Magnética/métodos , Masculino , Feminino , Adulto , Encéfalo/diagnóstico por imagem , Encéfalo/fisiopatologia , Descanso/fisiologia , Adulto Jovem , Mapeamento Encefálico/métodos , Máquina de Vetores de Suporte
4.
Artigo em Inglês | MEDLINE | ID: mdl-38701878

RESUMO

BACKGROUND: Anhedonia, a core symptom of major depressive disorder (MDD), manifests in two forms: anticipatory and consummatory, reflecting a diminished capacity to anticipate or enjoy pleasurable activities. Prior studies suggest that brain-derived neurotrophic factor (BDNF) and interleukin-10 (IL-10) may play key roles in the emergence of anhedonia in MDD. The specific relationships between these biomarkers and the two forms of anhedonia remain unclear. This study investigated the potential links between BDNF, IL-10, and both forms of anhedonia in MDD patients. METHODS: This study included 43 participants diagnosed with MDD and 58 healthy controls. It involved detailed assessments of depression and anxiety levels, anticipatory and consummatory pleasure, cognitive functions, and a broad spectrum of plasma biomarkers, such as C-reactive protein, various interleukins, and BDNF. Using partial correlation, variables related to pleasant experiences were identified. Stepwise multiple linear regression analysis was applied to pinpoint the independent predictors of anhedonia in the MDD group. RESULTS: Demographically, both groups were comparable in terms of age, sex, body mass index, educational year, and marital status. Individuals with MDD displayed markedly reduced levels of anticipatory and consummatory pleasure, higher anxiety, and depression scores compared to healthy controls. Additionally, cognitive performance was notably poorer in the MDD group. These patients also had lower plasma diamine oxidase levels. Analysis linked anhedonia to impaired delayed memory. Regression results identified IL-10 and BDNF as independent predictors of anticipatory and consummatory anhedonia, respectively. CONCLUSION: These findings demonstrate that anticipatory and consummatory anhedonia are influenced by independent factors, thereby providing critical insights into the distinct neuroimmunological mechanisms that underlie various forms of anhedonia. Clinicl Trial Registration Number: NCT03790085.


Assuntos
Anedonia , Fator Neurotrófico Derivado do Encéfalo , Transtorno Depressivo Maior , Interleucina-10 , Humanos , Transtorno Depressivo Maior/sangue , Transtorno Depressivo Maior/psicologia , Masculino , Anedonia/fisiologia , Fator Neurotrófico Derivado do Encéfalo/sangue , Feminino , Adulto , Interleucina-10/sangue , Pessoa de Meia-Idade , Biomarcadores/sangue , Adulto Jovem
5.
J Res Adolesc ; 34(3): 1099-1106, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38682585

RESUMO

Derailment is the sense of being "off-course" in life. But what could this mean for adolescents, who are often establishing identity and self-direction for the first time? We examined the structure and correlates of the Derailment Scale and its short form, the Derailment Scale-6 (DS-6), among middle-to-late adolescents (N = 452). Both scales exhibited unidimensionality, but the DS-6 demonstrated superior fit and correlated with cross-sectional distress markers (e.g., greater depression, lower life satisfaction, strained sense of purpose). Breaking from adult-based research, we failed to find evidence that derailment related to adolescent identity exploration and commitment. In extending assessment of derailment to adolescence, this study invites exploration of this experience during a time characterized by substantial transition and the emergence of stable self-views.


Assuntos
Autoimagem , Humanos , Adolescente , Masculino , Feminino , Análise Fatorial , Estudos Transversais , Depressão/psicologia , Satisfação Pessoal , Inquéritos e Questionários , Psicologia do Adolescente , Comportamento do Adolescente/psicologia
6.
Bioelectrochemistry ; 158: 108702, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38669976

RESUMO

The residue of lincomycin in water will not only aggravate the drug resistance of bacteria but also cause damage to the human body through biological accumulation. In this work, an electrochemiluminescence (ECL) aptasensor for the detection of lincomycin was constructed based on polydimethyldiallylammonium chloride (PDDA) functionalized Ce-doped TbPO4 nanowires (PDDA-TbPO4:Ce NWs) and silver nanoparticles (Ag NPs). TbPO4:Ce NWs were used as the luminophore, and PDDA was used to functionalize the luminophore to make the surface of the luminophore positively charged. The negatively charged silver nanoparticles were combined with PDDA-TbPO4:Ce NWs by electrostatic interaction. Ag NPs accelerated the electron transfer rate and promoted the ECL efficiency, which finally increased the ECL intensity of TbPO4:Ce NWs by about 4 times. Under the optimal conditions, the detection limit of the ECL sensor was as low as 4.37 × 10-16 M, and the linear range was 1 × 10 - 15 M to 1 × 10 - 5 M, with good selectivity, stability, and repeatability. The sensor can be applied to the detection of lincomycin in water, and the recovery rate is 97.7-103.4 %, which has broad application prospects.


Assuntos
Técnicas Eletroquímicas , Limite de Detecção , Lincomicina , Medições Luminescentes , Nanopartículas Metálicas , Prata , Lincomicina/análise , Prata/química , Medições Luminescentes/métodos , Nanopartículas Metálicas/química , Técnicas Eletroquímicas/métodos , Poluentes Químicos da Água/análise , Nanofios/química , Técnicas Biossensoriais/métodos , Compostos de Amônio Quaternário/química
7.
Environ Sci Technol ; 58(16): 7196-7207, 2024 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-38597822

RESUMO

Aerosols produced in the amine carbon capture process can lead to secondary environmental pollution. This study employs molecular dynamics (MD) simulations to investigate cluster formation, amine behavior, and aerosol growth of amines, essential for reducing amine aerosol emissions. Results showed that the cluster evolution process can be divided into cluster formation and growth in terms of molecular content, and the nucleation rate for the present systems was estimated in the order of 1028 cm-3 s-1. CO2 absorption was observed alongside successful nucleation, with CO2 predominantly localizing in the cluster's outer layer postabsorption. Monoethanolamine (MEA) exhibited robust electrostatic interactions with other components via hydrogen bonding, leading to its migration toward regions where CO2 and H2O coexisted within the cluster. While MEA presence markedly spurred cluster formation, its concentration had a marginal effect on the final cluster size. Elevating water content can augment the aerosol growth rate. However, altering the gas saturation is possible only within narrow confines by introducing vapor. Contrarily, gas cooling introduced dual, opposing effects on aerosol growth. These findings, including diffusion coefficients and growth rates, enhance theoretical frameworks for predicting aerosol formation in absorbers, aiding in mitigating environmental impacts of amine-based carbon capture.


Assuntos
Aerossóis , Dióxido de Carbono , Dióxido de Carbono/química , Simulação de Dinâmica Molecular , Aminas/química
8.
J Health Psychol ; : 13591053241248940, 2024 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-38686932

RESUMO

This study investigated whether emotion regulation mediates or modulates the relationship of SLEs with sleep quality and potential sex differences. A total of 1447 Chinese university students completed the Adolescent Self-Rating Life Events Checklist, the Pittsburgh Sleep Quality Index, and the Emotion Regulation Questionnaire. The results indicated that both cognitive reappraisal and expressive suppression significantly mediated and moderated the negative association between SLEs and sleep quality. Additionally, sex differences were found for the mediating role of cognitive reappraisal and for the modulating roles of cognitive reappraisal and expressive suppression in the relationship between SLEs and sleep quality. Although the present cross-sectional data does not allow us to test any causal relationships, these results help clarify the underlying emotion-regulation process between SLEs and sleep in university students and highlight the importance of considering sex differences in emotion regulation.

9.
J Pers ; 2023 Dec 18.
Artigo em Inglês | MEDLINE | ID: mdl-38108114

RESUMO

OBJECTIVE: Despite long-standing assumptions that a sense of purpose in life and goal pursuit are mutually supportive, empirical evidence of their reciprocity remains deficient. In the context of a unique out-of-school time program that empowers youth to pursue passions through self-driven learning, we examined whether purpose and one aspect of goal pursuit-perceptions of goal progress-work together to sustain themselves and each other over time. METHOD: Adolescents (N = 321) completed daily surveys throughout program enrollment (Menrollment = 69.09 days). Through dynamic structural equation modeling, we derived within-person patterns of day-to-day prediction as well as individual differences in these patterns. RESULTS: We found purpose and perceived goal progress exhibited significant daily inertia (i.e., autoregressive prediction) and reciprocity (i.e., cross-lagged prediction) at the within-person level. We also found initial evidence suggesting (a) tighter reciprocity was related to greater perceived goal progress overall and (b) people with greater purpose inertia may rely less on making goal progress to sustain momentum. CONCLUSIONS: With evidence of daily purpose-progress reciprocity, the field can look forward to replicating this work in other contexts, diving deeper into interesting patterns of within-person dynamics, and developing interventions to support youth striving.

10.
Psychol Sport Exerc ; 66: 102374, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-37665846

RESUMO

Accumulating evidence indicates positive associations between physical activity (PA) and cognitive control. Proactive control, the ability to maintain goal-relevant information in preparation of upcoming task demands, is a critical component of cognitive control. However, little research has examined the association between PA and proactive control. To address this issue, a total of 132 university students were recruited and divided into two groups based on reported regular PA during past week. All participants completed two common cognitive control tasks: the AX Continuous Performance Task (AX-CPT) and the Cued Task-Switching Paradigm (CTS). In comparison with the low PA group, the high PA group showed greater proactive control efficiency on both tasks. Moreover, proactive control indices significantly correlated between the two tasks for the high but not for the low PA group. Further, working memory significantly modulated the association between PA and proactive control efficiency of CTS. Although the present cross-section design does not allow us to test the causal relationship between PA and proactive control, these findings may have important implications for developing effective intervention strategies which aim to promote proactive control through increasing PA or to promote PA through increasing proactive control. Moreover, individual differences in working memory are important to consider when we aim to design such interventions.


Assuntos
Sinais (Psicologia) , Memória de Curto Prazo , Humanos , Exercício Físico , Individualidade , Agitação Psicomotora
11.
Analyst ; 148(10): 2335-2342, 2023 May 16.
Artigo em Inglês | MEDLINE | ID: mdl-37186001

RESUMO

Trilobatin is a flavonoid that has wide application prospects due to its various pharmacological effects, such as anti-inflammation and anti-oxidation. In this work, a novel electrochemical sensor based on gold nanobipyramids (AuNBs) and L-cysteine (L-cys) was constructed for the sensitive and selective determination of trilobatin. The AuNBs, which were prepared by a seed-mediated growth method, had large specific surface areas and excellent electrical conductivity. A layer of L-cys film, which provided more active sites through the amino and hydroxyl groups, was modified on the surface of the AuNBs by electropolymerization. Significantly, the Au-S bond between the L-cys film and AuNBs could improve the stability of the sensor and it exhibited satisfactory electrocatalytic oxidation activity for trilobatin. Under optimized conditions, the sensor based on poly-L-cys/AuNBs/GCE was used to determine trilobatin by differential pulse voltammetry (DPV). Two wide linear ranges between the current peak and the concentration of trilobatin were obtained in the range from 5 to 100 µM and 100 to 1000 µM, and the low detection limit (LOD) was up to 2.55 µM (S/N = 3). The sensor demonstrated desirable reproducibility, stability, and selectivity and was applied to detect real trilobatin samples extracted from Lithocarpus polystachyus Rehd.'s leaves, showing recoveries of 98.36%-104.96%, with satisfactory results.


Assuntos
Cisteína , Ouro , Ouro/química , Reprodutibilidade dos Testes , Oxirredução , Técnicas Eletroquímicas , Eletrodos
12.
Sci Rep ; 13(1): 7527, 2023 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-37160954

RESUMO

As an important link in the complex system engineering project of open pit mining, the quality of the boundary determines the performance of the project to a large extent. However, changes in economic indicators may raise doubts about the optimality of mining boundaries. In this article, a coal price time series forecasting model that considers some amount of redundancy is proposed, which combines an improved sparrow search algorithm (ISSA) and a least squares support vector regression machine regression (LSSVR) algorithm. The optimal values of the penalty factor and kernel function parameter of the LSSVR model are selected by ISSA, which improves the prediction accuracy and generalization performance of the forecasting model. A multistep decision optimization method under fluctuating coal price conditions is proposed, and the model prediction results are applied to the boundary optimization design process. Using the widely applied block model as the basis, a set of optimal production nested pits is obtained, allowing the realm design results to fit the coal price fluctuation trend and further enhance enterprise efficiency. The applicability and effectiveness of this method were verified by taking an ideal two-dimensional model and an inclined coal seam open-pit coal mine in Xinjiang as an example.

13.
J Adolesc ; 95(4): 729-739, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-36864724

RESUMO

INTRODUCTION: Supportive adults are a critical component of effective out-of-school time (OST) youth programs, yet the short-term dynamics that underlie their role are poorly understood. Within GripTape, a US-wide self-driven learning program, we examined if interactions with program-assigned adults (i.e., Champions) correspond with youths' daily psychosocial functioning (i.e., sense of purpose, self-concept clarity, and self-esteem). METHOD: Participants were 204 North American adolescents (M [SD] = 16.42 [1.18] years; female = 70.1%, male = 25.0%) enrolled in GripTape, a remote OST program that empowers under-resourced teens to pursue their passions for ~10 weeks. During enrollment, youth are given autonomy to structure their learning goals and methods to best match their needs; a stipend of up to 500 USD; and an adult Champion to act as a touchpoint. Data collection consisted of a baseline survey before the program launch and a 5-min survey on each day of enrollment. RESULTS: Across ~70 days, we found that youth reported greater psychosocial functioning on days they reported interacting with their Champion. After controlling for same-day psychosocial functioning, we failed to find evidence that Champion interactions predicted youths' next-day psychosocial functioning. CONCLUSION: In addition to being among the first studies to investigate the daily benefits of youth-adult interactions within OST programming, this study documents the short-term incremental change that may underlie previous work on OST program outcomes.


Assuntos
Funcionamento Psicossocial , Autoimagem , Humanos , Masculino , Adolescente , Adulto , Feminino , Instituições Acadêmicas , Inquéritos e Questionários
14.
J Migr Health ; 7: 100161, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36816446

RESUMO

Purpose: Human papillomavirus (HPV) vaccination rates for children of immigrant parents are substantially lower than US peers. This study aimed (1) to assess the prevalence of immigrant parents' unwillingness to vaccinate their daughters, (2) to compare by race/ethnicity the prevalence of immigrant parents' unwillingness to vaccinate their daughters, and (3) to examine predictors of the unwillingness stratified by race/ethnicity. Method: This study conducted a secondary analysis of data from the Health Information National Trends Survey (HINTS). HPV-related data were extracted and analyzed from first-generation immigrant parents (n = 784) with daughters 11-12 years of age. Results: The frequency of unwillingness was high for all racial/ethnic groups (43-58%). Non-Hispanic White and Asian parents who were aware of or heard about the HPV vaccine were less likely to be unwilling to vaccinate their daughters. Also, older Hispanic immigrant parents were more likely to be unwilling to vaccinate their daughters for HPV. Conclusion: To curb future incidences of HPV-related cervical cancers among second-generation immigrant women, efforts are needed to encourage first-generation immigrant parents to presently vaccinate their daughters for HPV.

15.
Artigo em Inglês | MEDLINE | ID: mdl-36201267

RESUMO

BACKGROUND: Neuroinflammation and cytokines play critical roles in neuropathic pain and axon degeneration/regeneration. Cytokines of transforming growth factor-ß superfamily have implications in pain and injured nerve repair processing. However, the transcriptional profiles of the transforming growth factor-ß superfamily members in dorsal root ganglia under neuropathic pain and axon degeneration/regeneration conditions remain elusive. OBJECTIVE: We aimed to plot the transcriptional profiles of transforming growth factor-ß superfamily components in lumbar dorsal root ganglia of sciatic nerve-axotomized rats and to further verify the profiles by testing the analgesic effect of activin C, a representative cytokine, on neuropathic pain. METHODS: Adult male rats were axotomized in sciatic nerves, and lumbar dorsal root ganglia were isolated for total RNA extraction or section. A custom microarray was developed and employed to plot the gene expression profiles of transforming growth factor-ß superfamily components. Realtime RT-PCR was used to confirm changes in the expression of activin/inhibin family genes, and then in situ hybridization was performed to determine the cellular locations of inhibin α, activin ßC, BMP-5 and GDF-9 mRNAs. The rat spared nerve injury model was performed, and a pain test was employed to determine the effect of activin C on neuropathic pain. RESULTS: The expression of transforming growth factor-ß superfamily cytokines and their signaling, including some receptors and signaling adaptors, were robustly upregulated. Activin ßC subunit mRNAs were expressed in the small-diameter dorsal root ganglion neurons and upregulated after axotomy. Single intrathecal injection of activin C inhibited neuropathic pain in spared nerve injury model. CONCLUSION: This is the first report to investigate the transcriptional profiles of members of transforming growth factor-ß superfamily in axotomized dorsal root ganglia. The distinct cytokine profiles observed here might provide clues toward further study of the role of transforming growth factor-ß superfamily in the pathogenesis of neuropathic pain and axon degeneration/regeneration after peripheral nerve injury.


Assuntos
Neuralgia , Fator de Crescimento Transformador beta , Ratos , Masculino , Animais , Axotomia , Ratos Sprague-Dawley , Fator de Crescimento Transformador beta/farmacologia , Ativinas/genética , Ativinas/farmacologia , Nervo Isquiático/lesões , Nervo Isquiático/patologia , Neuralgia/genética , Neuralgia/patologia , RNA Mensageiro/genética , Inibinas/farmacologia , Fatores de Crescimento Transformadores/farmacologia
16.
BMC Public Health ; 22(1): 2193, 2022 11 28.
Artigo em Inglês | MEDLINE | ID: mdl-36443734

RESUMO

BACKGROUND: Racial disparities in psychological distress associated with COVID-19 remain unclear in the U.S. This study aims to investigate the associations between social determinants of health and COVID-19-related psychological distress across different racial/ethnic groups in the US (i.e., non-Hispanic Whites, Hispanic, non-Hispanic Asians, and non-Hispanic African Americans). METHODS: This study used cross-sectional data from the 2020 California Health Interview Survey Adult Data Files (N = 21,280). Adjusting for covariates-including age, gender, COVID-19 pandemic challenges, and risk of severe illness from COVID-19-four sets of weighted binary logistic regressions were conducted. RESULTS: The rates of moderate/severe psychological distress significantly varied across four racial/ethnic groups (p < 0.001), with the highest rate found in the Hispanic group. Across the five domains of social determinants of health, we found that unemployment, food insecurity, housing instability, high educational attainment, usual source of health care, delayed medical care, and low neighborhood social cohesion and safety were associated with high levels of psychological distress in at least one racial/ethnic group (p < 0.05). CONCLUSION: Our study suggests that Hispanic adults face more adverse social determinants of health and are disproportionately impacted by the pandemic. Public health practice and policy should highlight social determinants of heath that are associated with different racial/ethnic groups and develop tailored programs to reduce psychological distress.


Assuntos
COVID-19 , Angústia Psicológica , Adulto , Humanos , Etnicidade , COVID-19/epidemiologia , Pandemias , Determinantes Sociais da Saúde , Estudos Transversais
17.
Eur J Pharmacol ; 935: 175324, 2022 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-36257382

RESUMO

Kidney stones constitute a disease of the urinary system of high incidence that has only a few available stone dissolving drugs as treatment options. The mechanism of calcium oxalate stone formation is still largely unclear. Various aspects and theories for initiation and formation of the renal stones have been suggested, and the complex multistep formation process of the kidney stones includes supersaturation, nucleation, growth and aggregation of a crystal, and crystal retention in cells after adhesion. During the initial stage of crystal formation, high concentrations of oxalate exposure may damage the renal tubular cells and cause oxidative stress after which the cells may be attached to the crystal thus supporting the oxalate-induced injury as the driving factor of crystal precipitation and cellular adhesion. However, at present, although various drugs targeting kidney stones have been proposed and evaluated both in vitro and in vivo, clinical drugs for stone dissolution have rarely been explored. Moreover, numerous advances in renal calcium oxalate stone associated target and drugs warrant their summarization until now, which could be further discussed and may provide potential ideas or options for exploration of renal calcium oxalate stone treatment targets and drugs.


Assuntos
Oxalato de Cálcio , Cálculos Renais , Humanos , Cristalização , Cálculos Renais/tratamento farmacológico , Cálculos Renais/química , Cálculos Renais/etiologia , Rim , Oxalatos , Cálcio
18.
J Fungi (Basel) ; 8(9)2022 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-36135661

RESUMO

Mitochondrial porin, the voltage-dependent anion-selective channel (VDAC), is the most abundant protein in the outer membrane, and is critical for the exchange of metabolites and phospholipids in yeast and mammals. However, the functions of porin in phytopathogenic fungi are not known. In this study, we characterized a yeast porin orthologue, Fgporin, in Fusarium graminearum. The deletion of Fgporin resulted in defects in hyphal growth, conidiation, and perithecia development. The Fgporin deletion mutant showed reduced virulence, deoxynivalenol production, and lipid droplet accumulation. In addition, the Fgporin deletion mutant exhibited morphological changes and the dysfunction of mitochondria, and also displayed impaired autophagy in the non-nitrogen medium compared to the wild type. Yeast two-hybrid and bimolecular fluorescence complementation assays indicated that Fgporin interacted with FgUps1/2, but not with FgMdm35. Taken together, these results suggest that Fgporin is involved in hyphal growth, asexual and sexual reproduction, virulence, and autophagy in F. graminearum.

19.
Front Genet ; 13: 828884, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35419032

RESUMO

Age at first egg (AFE) and egg number (EN) are economically important traits related to egg production, as they directly influence the benefits of the poultry industry, but the molecular genetic research that affects those traits in laying ducks is still sparse. Our objective was to identify the genomic regions and candidate genes associated with AFE, egg production at 43 weeks (EP43w), and egg production at 66 weeks (EP66w) in a Shaoxing duck population using genome-wide association studies (GWASs) and haplotype-sharing analysis. Single-nucleotide polymorphism (SNP)-based genetic parameter estimates showed that the heritability was 0.15, 0.20, and 0.22 for AFE, EP43w, and EP66w, respectively. Subsequently, three univariate GWASs for AFE, EP43w, and EP66w were carried out independently. Twenty-four SNPs located on chromosome 25 within a 0.01-Mb region that spans from 4.511 to 4.521 Mb were associated with AFE. There are two CIs that affect EP43w, i.e., twenty-five SNPs were in strong linkage disequilibrium region spanning from 3.186 to 3.247 Mb on chromosome 25, a region spanning from 4.442 to 4.446 Mb on chromosome 25, and two interesting genes, ACAD8 and THYN1, that may affect EP43w in laying ducks. There are also two CIs that affect EP66w, i.e., a 2.412-Mb region that spans from 127.497 to 129.910 Mb on chromosome 2 and a 0.355-Mb region that spans from 4.481 to 4.837 Mb on chromosome 29, and CA2 and GAMT may be the putative candidate genes. Our study also found some haplotypes significantly associated with these three traits based on haplotype-sharing analysis. Overall, this study was the first publication of GWAS on egg production in laying ducks, and our findings will be helpful to provide some candidate genes and haplotypes to improve egg production performance based on breeding in laying duck. Additionally, we learned from a method called bootstrap test to verify the reliability of a GWAS with small experimental samples that users can access at https://github.com/xuwenwu24/Bootstrap-test.

20.
Aging Ment Health ; 26(3): 632-638, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33438444

RESUMO

OBJECTIVES: Neurodegenerative diseases (NDs), such as Parkinson's disease and Alzheimer's disease and related dementias, are a leading cause of death and disability in China. Although studies have demonstrated that depression is associated with NDs, little is known about the factors impacting this relationship. This study aimed to explore and identify the risk and protective factors of depression among Chinese older adults with NDs. METHODS: Data selection was based on the behavioral model of late-life depression. Data from the latest wave of the Chinese Longitudinal Healthy Longevity Survey (CLHLS, 1998-2014) in 2014 were analyzed. Among the sample, 334 older adults aged 65 and older with NDs were included in the analysis. A logistic regression analysis was conducted by SPSS 24.0. RESULTS: Participants who lived in urban areas (O.R.= 2.494, p< .05) or needed more support for Activity of Daily Living (O.R.= 1.136, p< .05) were more likely to have depression. Participants who lived with household members (O.R.= .380, p< .05), self-reported their health status as fair (O.R.= .250, p< .01), or believed their health status remained the same (O.R.= .331, p< .01) were less likely to have depression. CONCLUSION: Our findings suggest that policymakers and healthcare professionals should pay specific attention to the regional disparities of healthcare services and the cultural background to understand the relationship between NDs and depression and improve the well-being of ND patients.


Assuntos
Depressão , Doenças Neurodegenerativas , Idoso , Povo Asiático , China/epidemiologia , Depressão/epidemiologia , Nível de Saúde , Humanos , Estudos Longitudinais , Doenças Neurodegenerativas/epidemiologia
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