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1.
J Environ Sci (China) ; 148: 350-363, 2025 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-39095170

RESUMO

Pyrrolizidine alkaloids (PAs) and their N-oxides (PANOs) are phytotoxins produced by various plant species and have been emerged as environmental pollutants. The sorption/desorption behaviors of PAs/PANOs in soil are crucial due to the horizontal transfer of these natural products from PA-producing plants to soil and subsequently absorbed by plant roots. This study firstly investigated the sorption/desorption behaviors of PAs/PANOs in tea plantation soils with distinct characteristics. Sorption amounts for seneciphylline (Sp) and seneciphylline-N-oxide (SpNO) in three acidic soils ranged from 2.9 to 5.9 µg/g and 1.7 to 2.8 µg/g, respectively. Desorption percentages for Sp and SpNO were from 22.2% to 30.5% and 36.1% to 43.9%. In the mixed PAs/PANOs systems, stronger sorption of PAs over PANOs was occurred in tested soils. Additionally, the Freundlich models more precisely described the sorption/desorption isotherms. Cation exchange capacity, sand content and total nitrogen were identified as major influencing factors by linear regression models. Overall, the soils exhibiting higher sorption capacities for compounds with greater hydrophobicity. PANOs were more likely to migrate within soils and be absorbed by tea plants. It contributes to the understanding of environmental fate of PAs/PANOs in tea plantations and provides basic data and clues for the development of PAs/PANOs reduction technology.


Assuntos
Camellia sinensis , Alcaloides de Pirrolizidina , Poluentes do Solo , Solo , Alcaloides de Pirrolizidina/química , Alcaloides de Pirrolizidina/análise , Solo/química , Camellia sinensis/química , Poluentes do Solo/análise , Poluentes do Solo/química , Óxidos/química , Adsorção
2.
J Environ Sci (China) ; 149: 574-584, 2025 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-39181669

RESUMO

The formation of oligomeric hydrogen peroxide triggered by Criegee intermediate maybe contributes significantly to the formation and growth of secondary organic aerosol (SOA). However, to date, the reactivity of C2 Criegee intermediates (CH3CHOO) in areas contaminated with acidic gas remains poorly understood. Herein, high-level quantum chemical calculations and Born-Oppenheimer molecular dynamics (BOMD) simulations are used to explore the reaction of CH3CHOO and H2SO4 both in the gas phase and at the air-water interface. In the gas phase, the addition reaction of CH3CHOO with H2SO4 to generate CH3HC(OOH)OSO3H (HPES) is near-barrierless, regardless of the presence of water molecules. BOMD simulations show that the reaction at the air-water interface is even faster than that in the gas phase. Further calculations reveal that the HPES has a tendency to aggregate with sulfuric acids, ammonias, and water molecules to form stable clusters, meanwhile the oligomerization reaction of CH3CHOO with HPES in the gas phase is both thermochemically and kinetically favored. Also, it is noted that the interfacial HPES- ion can attract H2SO4, NH3, (COOH)2 and HNO3 for particle formation from the gas phase to the water surface. Thus, the results of this work not only elucidate the high atmospheric reactivity of C2 Criegee intermediates in polluted regions, but also deepen our understanding of the formation process of atmospheric SOA induced by Criegee intermediates.


Assuntos
Ácidos Sulfúricos , Ácidos Sulfúricos/química , Aerossóis , Modelos Químicos , Poluentes Atmosféricos/química , Simulação de Dinâmica Molecular , Atmosfera/química
3.
An. psicol ; 40(2): 189-198, May-Sep, 2024. tab
Artigo em Inglês, Espanhol | IBECS | ID: ibc-232714

RESUMO

El suicidio se ha convertido en un problema social y de salud pública a nivel mundial. En este sentido, la Terapia de Aceptación y Compromiso (ACT) podría ser eficaz en su abordaje, existiendo evidencia sobre la relación entre algunos de sus componentes y la conducta suicida. Así, el presente estudio tuvo por objetivo realizar una revisión sistemática sobre la eficacia de ACT en conducta suicida. Para ello se siguió el protocolo PRISMA, empleando las siguientes bases de datos: PsycInfo, PubMed, Scopus y PsicoDoc. Inicialmente se obtuvieron 108 publicaciones potencialmente relevantes, de las cuales, finalmente, 13 fueron incluidas en la revisión. La calidad de los estudios se analizó a través de un instrumento de evaluación de riesgo de sesgos. Como resultados, a nivel general se observaron disminuciones estadísticamente significativas en ideación suicida (IS) y factores de riesgo de suicidio. Además, algunos estudios señalaron relaciones estadísticamente significativas entre un aumento de flexibilidad psicológica y la disminución de IS. Si bien los datos apuntaron a una posible eficacia de ACT en la reducción de IS, es necesario llevar a cabo mayor número de estudios experimentales que contemplen la complejidad de la conducta suicida y exploren los procesos de cambio implicados.(AU)


Suicide has emerged as a pressing global issue affecting both so-ciety and public health.In this context, Acceptance and Commitment Therapy (ACT) could prove effective in its approach, supported by evi-dence of the relationship between certain components of ACT and suicidal behavior. Thus, the present study aims to conduct a systematic review on the efficacy of ACT in suicidal behavior. For this, the PRISMA protocol was followed, using thefollowing databases: PsycInfo, PubMed, Scopus and PsicoDoc. Initially, 108 potentially relevant publicationswereobtained,13ofwhichwerefinallyincludedinthereview.Weanalyzedstudy qualityus-ingariskofbiasassessmentinstrument.Asaresult,statisticallysignificantdecreases in suicidal ideation (SI) and suicide risk factors were observed. In addition, some studies indicated statistically significant relationships be-tween increased psychological flexibility and decreasedSI.WhilethedatasuggestedthepotentialeffectivenessofACTinreducingsuicidal ideation (SI), more experimental studies are needed to consider the complexity of suicidal behavior and explore the processes of changeinvolved.(AU)


Assuntos
Humanos , Masculino , Feminino , Ideação Suicida , Saúde Mental , Psicologia Clínica , Suicídio , Saúde Pública , Fatores de Risco
4.
Front Neurol ; 15: 1442851, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39239399

RESUMO

Background: Brain network dysfunction has been characterized by resting-state electroencephalography (EEG) and magnetic resonance imaging (MRI) in the prodromal stage. This study aimed to identify multi-modal electrophysiological and neuroimaging biomarkers for differential diagnosis in synucleinopathies and phenoconversion in isolated rapid eye movement sleep behavior disorder (iRBD). Methods: We enrolled 35 patients with multiple system atrophy (MSA), 32 with Parkinson's disease (PD), 30 with iRBD and 30 matched healthy controls (HC). Power spectral density (PSD) was calculated in different frequency bands. EEG functional connectivity (FC) was calculated using the weighted Phase Lag Index (wPLI) after source localization. Significant network disruptions were further confirmed by MRI FC analysis. Results: Quantitative EEG analysis demonstrated that delta and theta power spectral density significantly differed among MSA, PD and HC. The increased PSD was correlated with cognitive decline and olfactory dysfunction in PD. Band-specific FC profiles were observed in theta, alpha, and gamma bands. The hypoconnected alpha network significantly correlated with motor dysfunction, while the gamma FC distinguished PD from MSA. By integrating EEG and MRI network analyses, we found that FC between the olfactory cortex and dorsolateral prefrontal cortex was significantly different between MSA and PD. A multimodal discriminative model for MSA and PD, integrating spectral and FC attributes of EEG and MRI, yielded an area under the receiver operating characteristic curve of 0.900. Simultaneously, we found the FC abnormalities were more prominent than spectral features in iRBD indicating prodromal dysfunction. The decreased FC between the angular gyrus and striatum was identified in α-synucleinopathies. This hypoconnectivity was associated with dopaminergic degeneration in iRBD examined by dopamine transporter imaging. Discussion: Our study demonstrated EEG spectral and functional profiles in prodromal and clinical-defined synucleinopathies. Multimodal EEG and MRI provided a novel approach to discriminate MSA and PD, and monitor neurodegenerative progression in the preclinical phase.

5.
BMC Public Health ; 24(1): 2438, 2024 Sep 08.
Artigo em Inglês | MEDLINE | ID: mdl-39245744

RESUMO

BACKGROUND: Ultraviolet (UV) radiation is the most important risk factor for skin cancer development. Sunlight is the main source of UV radiation in the general population. In addition, tanning beds are a source of artificial UV radiation. Since the incidence of skin cancer is increasing worldwide, it is necessary to monitor UV-related risk behaviors such as intentional indoor and outdoor tanning, as well as sun protection behavior in the general population and specific subgroups and settings. This is the aim of the National Cancer Aid Monitoring online (NCAM-online), a continuation and further development of the NCAM. METHODS: The NCAM-online is a longitudinal trend study consisting of four annual survey waves. Each year, 4,000 individuals aged 16-65 years living in Germany will be surveyed using online questionnaires. Each year, intentional indoor and outdoor tanning will be assessed. In addition, varying specific topics regarding skin cancer prevention, such as the utilization of skin cancer screening, will be addressed in the questionnaires. DISCUSSION: The findings of the NCAM-online will provide an important basis for the German Cancer Aid and Working Group on Dermatologic Prevention (Arbeitsgemeinschaft Dermatologische Prävention, ADP) to develop targeted prevention campaigns and projects aimed at preventing skin cancer. The explorative nature of the NCAM-online allows for the identification of new potential starting points for prevention and education. In addition, the longitudinal design allows for a description of the trend in the prevalence of intentional tanning. For tanning bed use, representative trend data from 2012 are available for Germany, to which NCAM-online will add annual data until 2027.


Assuntos
Neoplasias Cutâneas , Raios Ultravioleta , Humanos , Pessoa de Meia-Idade , Alemanha/epidemiologia , Adulto , Raios Ultravioleta/efeitos adversos , Adolescente , Idoso , Neoplasias Cutâneas/prevenção & controle , Neoplasias Cutâneas/epidemiologia , Masculino , Feminino , Adulto Jovem , Estudos Longitudinais , Inquéritos e Questionários , Banho de Sol/estatística & dados numéricos , Internet , Comportamentos Relacionados com a Saúde , Neoplasias Induzidas por Radiação/prevenção & controle , Neoplasias Induzidas por Radiação/epidemiologia , Fatores de Risco
6.
Genes Brain Behav ; 23(5): e12907, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39246030

RESUMO

Avian brood parasitism is an evolutionarily derived behavior for which the neurobiological mechanisms are mostly unexplored. We aimed to identify brain regions that have diverged in the brood-parasitic brain using relative transcript abundance of social neuropeptides and receptors. We compared behavioral responses and transcript abundance in three brain regions in the brown-headed cowbird (BHCO), a brood parasite, and a closely related parental species, the red-winged blackbird (RWBL). Females of both species were treated with mesotocin (MT; avian homolog of oxytocin) or saline prior to exposure to nest stimuli. Results reveal that MT promotes approach toward nests with eggs rather than nests with begging nestlings in both species. We also examined relative transcript abundance of the five social neuropeptides and receptors in the brain regions examined: preoptic area (POA), paraventricular nucleus (PVN) and bed nucleus of the stria terminalis (BST). We found that MT-treated cowbirds but not blackbirds exhibited lower transcript abundance for two receptors, corticotropin-releasing factor 2 (CRFR2) and prolactin receptor (PRLR) in BST. Additionally, MT-treated cowbirds had higher PRLR in POA, comparable to those found in blackbirds, regardless of treatment. No other transcripts of interest exhibited significant differences as a result of MT treatment, but we found a significant effect of species in the three regions. Together, these results indicate that POA, PVN, and BST represent neural nodes that have diverged in avian brood parasites and may serve as neural substrates of brood-parasitic behavior.


Assuntos
Comportamento de Nidação , Ocitocina , Animais , Ocitocina/metabolismo , Ocitocina/genética , Ocitocina/farmacologia , Ocitocina/análogos & derivados , Feminino , Aves Canoras/genética , Encéfalo/metabolismo , Especificidade da Espécie , Núcleo Hipotalâmico Paraventricular/metabolismo , Núcleos Septais/metabolismo , Área Pré-Óptica/metabolismo
7.
J Vasc Nurs ; 42(3): 182-190, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39244330

RESUMO

BACKGROUND: Walking as a treatment is recommended for people with intermittent claudication (IC), but participation tends to be poor. Walking treatment beliefs, as defined by the Theory of Planned Behaviour (TPB) are associated with walking behavior, so assessing and designing interventions targeting walking treatment beliefs are crucial. To assess walking treatment beliefs in people with IC in Gujarat, a translated, culturally adapted questionnaire that assesses the four TPB constructs (attitude, subjective normative beliefs, perceived behavioral control beliefs, and intention to walk) is required. AIM: To translate and cross-culturally assess the content validity and face validity of a Gujarati version of a TPB questionnaire that assesses walking treatment beliefs. MATERIALS AND METHODS: A forward-backward translation of the 12-item TPB questionnaire was applied using a standardized approach. The translated versions were compared with the original questionnaire, and ten experts, rated each item according to: clarity, semantic, appropriateness, and cultural relevance. Content Validity Index (CVI), item level content validity (I-CVI), Scale -content validity index (S-CVI/Ave), and universal agreement (UA) were computed to summarize the overall content validity of the questionnaire as well as a proportion of agreement with content experts. Face validity was assessed using a think-aloud approach with ten patients with IC. This cognitive interviewing approach (think-aloud approach) asked participants to describe their thoughts whilst completing the questionnaire. Responses were analyzed thematically. RESULTS: There was complete agreement between experts for 9/12 items (I-CVI=1.00), leading to an overall agreement (S-CVI/Ave) of 0.98. For face validation, at least 50% of the participants had no significant problems with any question in the questionnaire. Most problems participants encountered were straightforward, such as re-reading some questions or considering the questions carefully before answering. CONCLUSION: The Gujarati TPB questionnaire had excellent content validity and was comprehensible and answerable by the majority of our participants with IC and, therefore, had good face validity; this will enable walking treatment beliefs to be assessed in people with IC.


Assuntos
Comparação Transcultural , Claudicação Intermitente , Caminhada , Humanos , Claudicação Intermitente/terapia , Claudicação Intermitente/psicologia , Inquéritos e Questionários , Masculino , Feminino , Reprodutibilidade dos Testes , Pessoa de Meia-Idade , Índia , Psicometria , Tradução , Traduções , Comportamentos Relacionados com a Saúde , Idoso , Teoria do Comportamento Planejado
8.
Encephale ; 2024 Sep 06.
Artigo em Inglês | MEDLINE | ID: mdl-39244503

RESUMO

Dementia is a highly prevalent syndrome with various causes, characterized by cognitive deficit in one or more domains, with important impairment of functioning, which frequently presents with neuropsychiatric symptoms that may include obsessive-compulsive symptoms. OBJECTIVES: The main goal of this meta-analysis was to describe and determine the prevalence of obsessive-compulsive symptoms in dementia. MATERIALS AND METHODS: To accomplish that, MEDLINE, CENTRAL and Psycnet databases were searched from inception to March 2023. The Joanna Briggs Institute Critical Appraisal Checklist for Studies Reporting Prevalence Data was applied. The principal summary measures were the mean of prevalence of obsessive-compulsive symptoms in patients with dementia and the number of each type of obsession or compulsion. RESULTS: Of the 643 articles screened, 92 were accepted for full-text assessment. Of these, 30 with information on prevalence of obsessive-compulsive symptoms in dementia or any description of those were included, yielding a total of 37 cohorts (5 studies with two cohorts and 1 study with three cohorts). According to our results, obsessive-compulsive symptoms have considerable prevalence in dementia (35.3%, 23.1-47.6%), namely in frontotemporal dementia (48.4%, 29.8-67.0%); obsessive-compulsive symptoms were less frequent in other dementia diagnosis (17.6%, 9.1-26.2%). The more frequent obsessive contents are symmetry (28.6%) and somatic (20.0%); and the more frequent compulsions are checking (27.4%); hoarding is also a relevant symptom (27.8%). DISCUSSION: There was considerable heterogeneity in the prevalence of obsessive-compulsive symptoms in frontotemporal dementia, that is, in part related with diagnostic criteria for dementia, as well as obsessive-compulsive symptom assessment. A careful distinction between compulsions and compulsive-like symptoms is fundamental. Hypervigilance for somatic symptoms and concerns about disease and mortality, as well as deficits in cognitive domains like attention and memory may explain why somatic obsessions and checking compulsions are more prevalent. CONCLUSIONS: The present results indicate that obsessive-compulsive symptoms may be prevalent in the clinical course of many patients with dementia, especially frontotemporal dementia. Better instruments are needed to describe obsessive-compulsive phenomena in a reliable and comparable way, particularly in a population such as dementia patients, whose subjectivity is difficult to access.

9.
Ann Behav Med ; 2024 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-39231442

RESUMO

BACKGROUND: Physical activity is associated with both the hedonic (e.g., affect) and eudaimonic (e.g., purpose in life) aspects of well-being. While there is evidence linking momentary physical activity and affect in daily life, the examination of momentary purpose remains largely unexplored. PURPOSE: This study investigates the bidirectional associations between physical activity, positive and negative affect, and momentary purpose using Ecological Momentary Assessment (EMA) and accelerometer data. METHODS: Middle-aged participants (40-70 years old, n = 291) wore accelerometers and completed three daily EMA surveys on momentary experiences for 8 consecutive days. Physical activity (active time and counts) from 20- to 60-min periods before and after EMA surveys were used in the analyses. Multilevel models were adjusted for temporal and contextual factors, age, sex, education, work status, and race/ethnicity. RESULTS: When participants were more physically active than usual, they reported feeling more purpose-driven and positive affect. Similarly, when participants reported feeling more purpose-driven or experiencing positive affect, they engaged in more physical activity in the subsequent time period. These associations were similar for physical activity from 20- to 60-min periods before and after the EMA survey. Physical activity and negative affect were not related in either direction. CONCLUSIONS: In middle-aged adults' daily lives, physical activity has bidirectional relations with purpose and positive affect. This study highlights the dynamic associations between physical activity and the positive aspects of both hedonic and eudaimonic well-being. Future interventions or public health programs should integrate physical activity and mental well-being to maximize mutual benefits.


This study examined how physical activity relates to feelings of purpose and positive and negative affect in daily life among middle-aged adults (aged 40­70). Participants wore activity trackers and completed surveys on their smartphones about their feelings three times a day for 8 days. The study found that when participants were more physically active than usual, they experienced higher levels of purpose and more positive emotions. Conversely, feeling more purposeful or positive also led to more physical activity later on. The results suggest that physical activity and positive well-being are interconnected and reinforce each other in daily life.

10.
Sci Rep ; 14(1): 20627, 2024 09 04.
Artigo em Inglês | MEDLINE | ID: mdl-39232087

RESUMO

The coronavirus disease (COVID-19) pandemic negatively affected the diagnosis and treatment of several cancer types. However, this pandemic's exact impact and extent on bone and soft tissue sarcomas need to be clarified. We aimed to investigate the effect of the COVID-19 pandemic and emergency declaration by the local government on consultation behavior and clinical stage at diagnosis of bone and soft tissue sarcoma. A total of 403 patients diagnosed with bone and soft tissue sarcoma who initially visited three sarcoma treatment hospitals between January 2018 and December 2021 were included. The monthly number of newly diagnosed soft tissue sarcoma patients was reduced by 25%, and the proportion of soft tissue patients with stage IV disease at diagnosis significantly increased by 9% during the COVID-19 pandemic compared to before the COVID-19 pandemic. Furthermore, the monthly number of new primary bone and soft tissue sarcoma patients significantly decreased by 43% during the state of emergency declaration. The COVID-19 pandemic had a negative impact on soft tissue sarcoma patients' consultation behavior and increased the proportion of advanced-stage patients at initial diagnosis. An emergency declaration by the local government also negatively affected primary bone and soft tissue sarcoma patients' consultation behavior.


Assuntos
Neoplasias Ósseas , COVID-19 , Encaminhamento e Consulta , Sarcoma , Humanos , COVID-19/epidemiologia , COVID-19/diagnóstico , Sarcoma/diagnóstico , Sarcoma/epidemiologia , Sarcoma/terapia , Masculino , Feminino , Pessoa de Meia-Idade , Neoplasias Ósseas/diagnóstico , Neoplasias Ósseas/epidemiologia , Adulto , Idoso , Neoplasias de Tecidos Moles/diagnóstico , Neoplasias de Tecidos Moles/epidemiologia , Neoplasias de Tecidos Moles/terapia , Pandemias , SARS-CoV-2/isolamento & purificação , Estadiamento de Neoplasias
11.
BMC Oral Health ; 24(1): 1031, 2024 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-39227916

RESUMO

BACKGROUND: Dental students face the rigorous demands of coursework, which can lead to feelings of inadequacy and stress. These pressures can negatively influence self-efficacy and cause neglect in practicing healthy behaviors that encompass oral health. Identifying the associations of these variables with oral hygiene practices can help in the formulation of interventions tailored toward supporting young students. Therefore, this study aimed to investigate the impact of health behaviors, perceived stress and self-efficacy on oral hygiene practices among undergraduate dental students in Pakistan. METHODS: A national online survey was carried out among 904 students across the dental colleges of Pakistan. The survey assessed general health behaviors such as tobacco use, sleep, and exercise, among other demographic variables. Perceived stress was evaluated via the Perceived Stress Scale (PSS-10), and self-efficacy was evaluated via the General Self-Efficacy Scale (GSES). Twice daily brushing, brushing for 2 min, and changing toothbrushes after 3 months informed oral hygiene practice of the participants. RESULTS: The students experienced moderate perceived stress (20.82 ± 5.92) and high self-efficacy (29.19 ± 5.43). The majority of participants were in their third year (31.9%), were female (65.9%), and resided in home during their studies (64.4%). Perceived stress was observed to have no significant effect on the oral practice of participants. Female gender, non tobacco user, regular exercise, frequent dental visits and higher self-efficacy were associated with good oral hygiene practices. CONCLUSIONS: The results highlight the importance of addressing stress, enhancing self-efficacy and encouraging healthy behaviors among dental students to improve their oral health, which could be reflected in their professional practice and personal well-being. This study contributes to the understanding of behavioral determinants and emphasizes the need for supportive measures to foster better health behaviors in future dental professionals.


Assuntos
Comportamentos Relacionados com a Saúde , Higiene Bucal , Autoeficácia , Estresse Psicológico , Estudantes de Odontologia , Humanos , Estudantes de Odontologia/psicologia , Feminino , Paquistão , Masculino , Estresse Psicológico/psicologia , Adulto Jovem , Adulto , Inquéritos e Questionários
12.
CNS Neurosci Ther ; 30(9): e70025, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39228080

RESUMO

AIMS: The study aimed to evaluate the potential benefits of luteolin treatment in Huntington's disease (HD), an inherited progressive neurodegenerative disorder. METHODS: HD N171-82Q transgenic and WT mice received luteolin or vehicle for treatment at 6 weeks of age. The mice's body weight changes and survival rates were monitored throughout the study, and a series of motor functional tests were conducted. Serum level of the marker NfL was also determined. Immunohistochemical staining and western blotting were utilized to assess the expression of huntingtin aggregates. RESULTS: Luteolin treatment enhanced survival and prevented weight loss in HD mice compared to the vehicle-treated HD group. Furthermore, the luteolin-treated HD mice exhibited enhanced motor coordination and balance and significantly reduced motor dysfunction. Also, luteolin decreased serum NfL levels in HD mice. Notably, the accumulation of huntingtin aggregates was significantly reduced in the brain's cortex, hippocampus, and striatum of luteolin-treated HD mice compared to the vehicle-treated HD group. CONCLUSION: Luteolin holds promise as a therapeutic agent for improving survival outcomes, managing motor dysfunction, and reducing huntingtin aggregates in HD. The findings are of significance as currently, there are no approved therapeutic interventions that reverse HD pathology or slow down its progression.


Assuntos
Modelos Animais de Doenças , Proteína Huntingtina , Doença de Huntington , Luteolina , Camundongos Transgênicos , Animais , Doença de Huntington/tratamento farmacológico , Doença de Huntington/metabolismo , Luteolina/farmacologia , Luteolina/uso terapêutico , Camundongos , Proteína Huntingtina/genética , Encéfalo/efeitos dos fármacos , Encéfalo/metabolismo , Proteínas de Neurofilamentos/metabolismo , Masculino , Atividade Motora/efeitos dos fármacos , Humanos
13.
Basic Clin Neurosci ; 15(2): 261-272, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39228456

RESUMO

Introduction: Valproic acid (VPA) is the most widely used chemical to develop the preclinical model of autism spectrum disorder (ASD). However, in addition to inducing autism, it causes different teratogenic effects like teeth malformation, tail kink, and abnormal body growth in offspring. So far, no study has explored VPA-induced maternal misbehavior, miscarriage, and maternal cannibalism. We aimed to determine the cannibalistic effects of VPA in pregnant female Wistar rats and VPA's influence on causing miscarriage frequency. Methods: Our study was conducted on pregnant Wistar rats. On gestation day (GD) 12.5, they were treated with VPA (600 mg/kg intraperitoneal) dissolved in saline at 250 mg/mL concentration. The observations were mean litter size, mean male/female pups, mean mortality, maternal cannibalism, mean number of pups alive, cannibalism of malformed pups, miscarriage, survival analysis of pups, and odds and risk ratio were calculated for deaths observed in both study (control and VPA-treated) groups. The study was conducted till the weaning period. Results: VPA-exposed pregnant females portrayed significantly decreased litter size (P<0.0001), significantly higher cannibalistic behavior (P=0.0023), and significantly higher cannibalism of malformed pups (P=0.0484) than the control group. VPA had caused complete pregnancy loss (miscarriage) in 5 pregnant females. Moreover, the VPA group's mortality percentage (P=0.0019) was significantly higher than the control group. Conclusion: Overall, VPA has marked teratogenic effects (anatomical and morphological changes in offspring) with maternal behavior disruption, which causes cannibalism in Wistar female rats. The current manuscript findings can aid in investigating the novel mechanisms involved in maternal behavior disruption during the development of the VPA autism model.

14.
Front Public Health ; 12: 1341213, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39228850

RESUMO

Objectives: This article studied the single-factor causal relationships between the social environment, health cognition, and health behavior of the individuals with non-fixed employment and their adverse health outcomes, as well as the complex causal relationships of multiple factors on these outcomes. Methods: Partial Least Squares Structural Equation Modeling (PLS-SEM) and Fuzzy-Set Qualitative Comparative Analysis (fsQCA) are employed. Data is collected from the results of an open questionnaire Psychology and Behavior Investigation of Chinese Residents 2021. Results: PLS-SEM analysis reveals that health risk behaviors and cognition play a mediating role in impact of the social environment on adverse health outcomes, indicating that individuals with non-fixed employment susceptible to adverse health outcomes. fsQCA analysis identifies that weak social support is a core condition leading to outcomes of depression and anxiety. There are shared configurations and causal pathways between the outcomes of physical health and depression. Conclusion: The study supports the social determinants theory of health and suggests that the fundamental reason for people being trapped in adverse health outcomes is the health inequality caused by social stratification, and the external shock of uncertainty in the era of VUCA (Volatility, Uncertainty, Complexity, and Ambiguity).


Assuntos
Cognição , Comportamentos Relacionados com a Saúde , Meio Social , Humanos , China , Feminino , Masculino , Adulto , Inquéritos e Questionários , Pessoa de Meia-Idade , Emprego/estatística & dados numéricos , Análise de Classes Latentes , Análise dos Mínimos Quadrados , Lógica Fuzzy , Determinantes Sociais da Saúde
15.
Bioscience ; 74(8): 567-576, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39229624

RESUMO

Access to independent research experiences is a persistent barrier that stifles the recruitment and retention of students from diverse backgrounds in ecology, evolution, and behavioral biology. The benefits of field experiences are not equitably available to historically excluded and minoritized students. In this article, we summarize evidence that indicates course-based undergraduate research experiences (CUREs) provide a solution to ensure equitable access to independent research experiences in the life sciences. We draw from our own experiences of teaching CUREs in ecology, evolution, and behavioral biology and provide the complete curriculum for our effective and largely materials-free CURE in behavioral ecology (CURE-BxEco). We advocate for greater access to and synthesize the benefits of CUREs to promote inclusivity in education. The proliferation of such innovative pedagogical practices benefits science because these classroom methods are critical in recruiting and retaining historically excluded and minoritized students, who offer diverse perspectives in research.

16.
Physiol Behav ; 287: 114688, 2024 Sep 02.
Artigo em Inglês | MEDLINE | ID: mdl-39233255

RESUMO

Restless Legs Syndrome (RLS) is a neurological disorder characterized by an irresistible urge to move the legs and is associated with decreased quality of life and sleep, and may result in cognitive changes. Physical exercise generates cognitive improvements and improves RLS symptoms. Our objective is to analyze recognition memory in the iron-deficient rodent model of RLS, and the effect of exercise. The animals (male Wistar rats) were distributed at 21 days of age into a control group (CTRL) (standard diet) or an ID group (iron-deficient diet). After performance classification (at 77 days of age), the animals were redistributed into CTRL (no exercise), CTRL EX (exercise), ID (no exercise) and ID EX (exercise), totaling 9 animals per group. The exercise groups performed treadmill exercise for four weeks. In the 14th week of the diet, the sleep recording of CTRL and ID animals was carried out to validate the RLS model. The Novel Object Recognition Memory test (NOR) was performed before the start of exercise (8th week of diet) and after the end (14th week) in all groups. The ID group demonstrated worsening sleep parameters and increased paw movements compared to the control group. The ID group demonstrated impairment of recognition memory after 14 weeks of diet compared to the CTRL group, and, the CTRL improved recognition memory in the 14th week compared to the 8th week. No differences were found for the exercise groups. Our findings indicate that the RLS animal model exhibited cognitive alterations associated with recognition memory, and long-term aerobic exercise intervention demonstrated a protective influence against these effects.

17.
Ophthalmol Sci ; 4(6): 100532, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39233829

RESUMO

Vision is the most powerful sense guiding our interaction with the environment. Its process starts with the retinal image as input and results in visually guided behaviors as output. This paper summarizes insights I gained over >40 years dealing with clinical ophthalmology, visual science, and vision rehabilitation, disciplines that all involve vision, but from different points of view. The retinal image contains 2-dimensional forms that have no inherent meaning. The brain matches this input to stored concepts, to create a Mental Model that is filled with 3-dimensional objects that are meaningful and linked to other senses. Ultimately this leads to the output of goal-directed visually guided behavior. The processes involved are too complex to be covered by a single practitioner. Optimal vision rehabilitation requires teamwork that includes contributions from various professions. It also requires an understanding, as well as possible, of the cerebral processes involved. The visual sciences study mostly the input-driven process from retinal image to visual percepts. Their studies deal mostly with groups and group averages and only occasionally with individual disease conditions. Clinical ophthalmology deals mostly with individuals, rather than group averages. The motto of the American Academy of Ophthalmology reminds us that the end point of patient care goes beyond "preserving sight." It also includes "empowering lives" by creating the conditions for goal-directed interaction with the environment through visually directed behavior. Traditionally, the study of vision has mainly involved the conscious part of vision, handled mostly in the ventral stream. However, the subconscious part of vision, handled mostly in the dorsal stream must also be considered. This is further stimulated by the demands of computer vision, image processing, and artificial intelligence. Vision rehabilitation traditionally deals with the input side through better illumination and various magnification devices. This is the domain of low vision aids. Increasingly, however, it must also address the output side, and the involvement of other senses (braille, long cane, and talking books). This requires better understanding of the goal-directed higher visual processes. The supplemental material covers the development of numerical scales to quantify not only visual acuity but also visual abilities, and the use of different tests. Financial Disclosures: The author(s) have no proprietary or commercial interest in any materials discussed in this article.

18.
J Behav Addict ; 2024 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-39235861

RESUMO

Background: The introduction of Compulsive Sexual Behavior Disorder (CSBD) into the 11th International Classification of Diseases has raised expectations for better treatment options for CSBD. Furthermore, the treatment demand has increased, particularly for pornography use disorder (PUD), a subtype of CSBD. Presumably due to the easy access to Internet pornography an increasing prevalence of PUD is observed. Consequently, providing tailored and effective treatment is essential. Methods: This article provides an overview of the manualized short-term PornLoS Treatment Program (Pornografienutzungsstörung effektiv behandeln- Leben ohne Suchtdruck; translation: Treating pornography use disorder effectively - life without craving). The program combines 24 individual and 6 group psychotherapy sessions with an interdisciplinary approach by offering a novel treatment framework. This includes, e.g., a mobile app, establishment of self-help groups, and access to other social services such as couple counseling. The cognitive-behavioral treatment program contains interventions addressing psychoeducation, cue exposure, impulse control, cognitive restructuring, emotional regulation, and relapse management.We here also describe the study protocol of an ongoing four-arm randomized controlled trial. The aim is to test two variants of the PornLoS Treatment Program differing with respect to their treatment goal (abstinence or reduced pornography use) against cognitive-behavioral treatment as usual and against a waitlist control group. The primary outcome is the absence of a PUD diagnosis at the end of therapy. The total target sample size will comprise n = 316 patients with PUD across eight study sites. Results: The results will be presented at international conferences and published in a scientific peer-reviewed journal.

19.
Endocrinology ; 2024 Sep 05.
Artigo em Inglês | MEDLINE | ID: mdl-39236000

RESUMO

BACKGROUND: While intermittent fasting leads to weight loss and improved glucose metabolism, food insecurity, the insufficient access to food for a healthy life, is associated with obesity and adverse cardiometabolic health, especially in women. We aimed to characterize the effects of intermittently restricted feeding on energy balance and glucose tolerance in female mice. METHODS: Female C57BL/6J mice were fed a high fat, high sucrose diet and intermittently food restricted to 60% of control littermates' ad libitum intake, starting at weaning and until week 19. Restricted mice were subsequently allowed ad libitum access to the same diet. Body composition and energy balance were measured at weeks 18.5, 19, 30, 40. At week 42, mice underwent intraperitoneal glucose tolerance test and plasma appetitive hormones measurements after nutrient gavage. RESULTS: During the food restriction phase, Restricted mice accrued lower weight and fat mass than controls despite periodic ad libitum food access. Reintroduction of continuous ad libitum food caused increased food intake during the light phase and increased body mass in Restricted mice. Minor differences in body composition-adjusted energy expenditure between groups were observed at week 40. At week 42, glucose tolerance was impaired in Restricted mice compared to controls, and trends toward lower levels of postprandial anorexigenic hormones glucagon-like peptide-1 and pancreatic polypeptide were observed. CONCLUSIONS: Our findings suggest that repeated intermittent food restriction leads to changes in eating behavior that predispose to glucose intolerance when food is freely available. Future studies are needed to elucidate the specific mechanisms underlying these changes.

20.
Dev Psychobiol ; 66(7): e22544, 2024 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-39236223

RESUMO

Past studies in animal models have extensively investigated the impact of early life experiences on behavioral development, yet relatively few have specifically examined the implications of peripubertal experiences on the evolution of competitive behavior across distinct stages of adulthood. In the current research, we probed potential differences in competitive behavior during emerging adulthood (3 months old) and middle adulthood (12 months old) in 81 Sprague-Dawley male rats exposed to three different peripubertal (postnatal Days 37-60) environments: an enriched environment (EE), a chronic unpredictable mild stress (CUMS) condition, and a control condition. Anxiety-like behavior served as a positive control in our study. Results revealed significant variations in competitive behavior among the groups during emerging adulthood. The EE group displayed the least anxiety and outperformed their peers in food-reward-oriented competition, whereas the CUMS group excelled in status-driven, agonistic competition. However, these behavioral differentiations gradually attenuated by middle adulthood, at which point the control group began to show an advantage. Our findings suggest that although peripubertal experiences significantly shape competitive behavior in the emerging adulthood stage, this effect diminishes over time and is nearly non-detectable during mid-adulthood, underscoring the fluidity of behavioral development and demonstrating that the effects of peripubertal experiences can be modulated by subsequent life experiences.


Assuntos
Comportamento Animal , Comportamento Competitivo , Ratos Sprague-Dawley , Estresse Psicológico , Animais , Masculino , Ratos , Comportamento Competitivo/fisiologia , Comportamento Animal/fisiologia , Estresse Psicológico/fisiopatologia , Ansiedade/fisiopatologia , Meio Ambiente , Fatores Etários
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