650,016 results match your criteria: "and Neurosciences; Center for Research and Advanced Studies Cinvestav[Affiliation]"

Background: Attention deficit hyperactivity disorder (ADHD) is one prevalent neurodevelopmental disorder with childhood onset, however, there is no clear correspondence established between clinical ADHD subtypes and primary medications. Identifying objective and reliable neuroimaging markers for categorizing ADHD biotypes may lead to more individualized, biotype-guided treatment.

Methods: Here we proposed a graph convolution network for biological subtype detection (GCN-BSD) using both functional network connectivity (FNC) and non-imaging phenotypic data for ADHD biotype.

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Factors associated with aspects of functioning one year after hospitalization due to COVID-19.

Clin Rehabil

January 2025

Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.

Objective: To identify factors, present at 3 months after COVID-19 that are associated with the level of functioning 1 year after hospitalization.

Design: Multicenter prospective observational study.

Setting: Region Västra Götaland Sweden.

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Children with autism spectrum disorder (ASD) display a variety of core and co-occurring difficulties in social, communication, everyday functioning, cognitive, motor, and language domains. Receiving a combination of services to accommodate needs of autistic individuals is essential for improving their future outcomes. During the COVID-19 pandemic, reduced service access negatively impacted autistic children's outcomes.

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Objective: Current clinical practice guidelines support structured, progressive protocols for improving walking after stroke. Technology enables monitoring of exercise and therapy intensity, but safety concerns could also be addressed. This study explores functional mobility in post-stroke individuals using wearable technology to quantify movement smoothness-an indicator of safe mobility.

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Background: Anxiety disorders and treatment-resistant major depressive disorder (TRD) are often comorbid. Studies suggest ketamine has anxiolytic and antidepressant properties.

Aims: To investigate if subcutaneous racemic ketamine, delivered twice weekly for 4 weeks, reduces anxiety in people with TRD.

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Attitudes towards mental health professionals in social media: infodemiology study.

Br J Psychiatry

January 2025

South London and Maudsley NHS Foundation Trust, London, UK; and Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.

Background: Negative perceptions of mental health professionals can deter individuals from seeking mental healthcare. Given the high burden of mental health globally, it is essential to understand attitudes towards mental health professionals. Social media platforms like Twitter/X provide valuable insights into the views of the general population.

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Subcellular Spatial Transcriptomics (SST) represents an innovative technology enabling researchers to investigate gene expression at the subcellular level within tissues. To comprehend the spatial architecture of a given tissue, cell segmentation plays a crucial role in attributing the measured transcripts to individual cells. However, existing cell segmentation methods for SST datasets still face challenges in accurately distinguishing cell boundaries due to the varying characteristics of SST technologies.

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Cerebral perfusion alterations in healthy young adults due to two genetic risk factors of Alzheimer's disease: APOE and MAPT.

J Cereb Blood Flow Metab

January 2025

Sheffield Institute for Translational Neuroscience, Division of Neuroscience, School of Medicine and Population Heath, University of Sheffield, Sheffield, UK.

Functional brain changes such as altered cerebral blood flow occur long before the onset of clinical symptoms in Alzheimer's disease (AD) and other neurodegenerative disorders. While cerebral hypoperfusion occurs in established AD, middle-aged carriers of genetic risk factors for AD, including APOE ε4, display regional hyperperfusion due to hypothesised pleiotropic or compensatory effects, representing a possible early biomarker of AD and facilitating earlier AD diagnosis. However, it is not clear whether hyperperfusion already exists even earlier in life.

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Population Genomics of Japanese Macaques (Macaca fuscata): Insights into Deep Population Divergence and Multiple Merging Histories.

Genome Biol Evol

January 2025

Faculty of Information Science and Technology, Hokkaido University, Kita-14, Nishi-9, Kita-ku, Sapporo, Hokkaido, Japan 060-0814.

The influence of long-term climatic changes such as glacial cycles on the history of living organisms has been a subject of research for decades, but the detailed population dynamics during the environmental fluctuations and their effects on genetic diversity and genetic load are not well understood on a genome-wide scale. The Japanese macaque (Macaca fuscata) is a unique primate adapted to the cold environments of the Japanese archipelago. Despite of the past intensive research for the Japanese macaque population genetics, the genetic background of Japanese macaques at the whole-genome level has been limited to a few individuals, and the comprehensive demographic history and genetic differentiation of Japanese macaques have been underexplored.

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Background: Pretreatment CT perfusion (CTP) marker relative cerebral blood volume (rCBV) < 42% lesion volume has recently shown to predict poor collateral status and poor 90-day functional outcome. However, there is a paucity of studies assessing its association with hemorrhagic transformation (HT). Here, we aim to assess the relationship between rCBV < 42% lesion volume with HT.

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Aβ40 Fibril Assembly on Human Cerebral Smooth Muscle Cells Impairs Cell Viability.

Biochemistry

January 2025

George and Anne Ryan Institute for Neuroscience, Department of Biomedical and Pharmacological Sciences, University of Rhode Island, Kingston, Rhode Island 02881, United States.

Cerebral vascular deposition of the amyloid-β (Aβ) peptide, a condition known as cerebral amyloid angiopathy (CAA), is associated with intracerebral hemorrhaging and contributes to disease progression in Alzheimer's disease (AD) and vascular cognitive impairment and dementia (VCID). Familial mutations at positions 22 and 23 within the Aβ peptide lead to early onset and severe CAA pathology. Here, we evaluate the effects of fibrillar Aβ peptides on the viability of primary-cultured human cerebral smooth muscle (HCSM) cells, which are the major site of amyloid deposition in cerebral blood vessel walls.

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Objective: To examine factors associated with high intensity physician-based mental health care services in a population-based sample of children and youth in Ontario, Canada.

Methods: Data from the 2014 Ontario Child Health Study (OCHS) were linked at the person-level to longitudinal health administrative databases containing physician contacts in outpatient settings, emergency departments and hospitals. Our analytical sample (15.

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This study introduces a novel synchronous spectrofluorimetry coupled with chemometric tools for the determination of tenofovir and dolutegravir antiretroviral drugs. Utilizing partial least squares regression (PLS) fine-tuned by genetic algorithm as variable selection tool, the developed models demonstrate greater sensitivity, cost-effectiveness, and reduced environmental impact compared to traditional HPLC methods. The model's validation was further confirmed using external validation in addition to QC samples as per ICH M10 guidelines, which yielded high accuracy ranged between 94.

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Introduction: Sexual health, pleasure, justice (equity in sexual rights and experiences), and well-being are crucial determinants of health and life quality, yet often overlooked in the rheumatic and musculoskeletal diseases (RMD) field. However, this topic has received more attention recently, and there is a need to map the current literature to inform the direction of future studies. Hence, this protocol outlines a scoping review to systematically map existing evidence on sexual health in people with RMD, exploring key themes and identifying evidence gaps across multiple dimensions, including sexual well-being, justice and pleasure.

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To intubate or not? Balancing anesthesia in rodent fMRI: strategies to mitigate confounding effects.

Cereb Cortex

January 2025

Institute of Neuroscience and Medicine (INM-3), Research Center Juelich, Forschungszentrum Jülich, Wilhelm-Johnen-Strasse, 52425 Jülich, Germany.

More than a decade ago, the introduction of intubation and mechanical ventilation for performing blood oxygen level-dependent functional MRI studies in the rodent brain allowed an improved control over the physiological conditions during scanning sessions. An accurate understanding of respiratory parameters permits to respect the 3Rs in animal research, improves significantly the fMRI outcome, and promises improved translational studies. Developments also prompted a better comprehension on anesthetics and their impact on rodent brain physiology and function, bringing new insights on the buildup of carbon dioxide, interhemispheric connectivity, or arousal, which understanding are paramount for maturing better fMRI protocols in awake rodents.

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Introduction: Circadian rhythms are responsible for physiological and behavioral processes coordinated in a 24-hour cycle. We investigated whether untimed, long-term voluntary wheel access mitigated circadian disruption and facilitated re-entrainment. Methods: Thirty-four C57Bl/6 J mice (n = 21 males, n = 14 females) were used in this experiment.

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Background: Dementia represents a growing healthcare challenge in the United States. The Care Ecosystem, an effective collaborative care model, bridges medical and social care needs for individuals with dementia. The purpose of this study was to describe how the Care Ecosystem has been disseminated and the lessons learned from this experience.

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Unprecedented carbonic anhydrase inhibition mechanism: Targeting histidine 64 side chain through a halogen bond.

Arch Pharm (Weinheim)

January 2025

Section of Pharmaceutical and Nutraceutical Sciences, Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), University of Florence, Sesto Fiorentino, Firenze, Italy.

2,2'-Thio-bis(4,6-dichlorophenol), namely bithionol, is a small molecule endowed with a multifaceted bioactivity. Its peculiar polychlorinated phenolic structure makes it a suitable candidate to explore its potentialities in establishing interaction patterns with enzymes of MedChem interest, such as the human carbonic anhydrase (hCA) metalloenzymes. Herein, bithionol was tested on a panel of specific hCAs through the stopped-flow technique, showing a promising micromolar inhibitory activity for the hCA II isoform.

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Background: Non-invasive ventilation (NIV) uses positive pressure to assist people with respiratory muscle weakness or severe respiratory compromise to breathe. Most people use this treatment during sleep when breathing is most susceptible to instability. The benefits of using NIV in motor neurone disease (MND) are well-established.

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Background: The success of selecting high risk or early-stage Alzheimer's disease individuals for the delivery of clinical trials depends on the design and the appropriate recruitment of participants. Polygenic risk scores (PRS) show potential for identifying individuals at risk for Alzheimer's disease (AD). Our study comprehensively examines AD PRS utility using various methods and models.

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Aims: To explore the relationship between weight loss and insulin sensitivity in response to tirzepatide or semaglutide.

Materials And Methods: We conducted a post hoc exploratory analysis of a 28-week, double-blind, randomized trial in people with type 2 diabetes treated with metformin, randomized to tirzepatide 15 mg, semaglutide 1 mg or placebo. We evaluated the relationship between change in body weight and change in insulin sensitivity determined from hyperinsulinemic euglycemic clamp (M value), or from mixed-meal tolerance testing (Matsuda index).

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Background: Changes in amyloid beta (Aβ) and phosphorylated tau brain levels are known to affect brain network organization but very little is known about how plasma markers can relate to these measures. We aimed to address the relationship between centrality network changes and two plasma pathology markers: phosphorylated tau at threonine 231 (p-tau231), a proxy for early Aβ change, and neurofilament light chain (Nfl), a marker of axonal degeneration.

Methods: One hundred and four cognitively unimpaired individuals were divided into a high pathology load (33 individuals; HP) group and a low pathology (71 individuals; LP) one.

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Background: Animal systematic reviews are critical to inform translational research. Despite their growing popularity, there is a notable lack of information on their quality, scope, and geographical distribution over time. Addressing this gap is important to maintain their effectiveness in fostering medical advancements.

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Background: As students spend most of their time in school, a supportive school environment is essential for adolescents' personal growth, effective learning, and well-being. Students actively participate in learning when they feel supported, respected, and connected to their school environment. An unhealthy school climate might significantly influence health-related and educational outcomes during adolescence.

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