3,711 results match your criteria: "Institute of Neurobiology[Affiliation]"

L. (AE) has a rich tradition of use in wound healing improvement across various cultures worldwide. In previous studies, we revealed that L.

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Bridging the fields of cognition and birdsong with corvids.

Curr Opin Neurobiol

January 2025

Animal Physiology, Institute of Neurobiology, University of Tuebingen, Auf der Morgenstelle 28, 72076 Tuebingen, Germany. Electronic address:

Corvids, readily adaptable across social and ecological contexts, successfully inhabit almost the entire world. They are seen as highly intelligent birds, and current research examines their cognitive abilities. Despite being songbirds with a complete 'song system', corvids have historically received less attention in studies of song production, learning, and perception compared to non-corvid songbirds.

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 - a large-scale dataset of 3D medical shapes for computer vision.

Biomed Tech (Berl)

December 2024

Institute for Artificial Intelligence in Medicine (IKIM), University Hospital Essen (AöR), Essen, Germany.

Objectives: The shape is commonly used to describe the objects. State-of-the-art algorithms in medical imaging are predominantly diverging from computer vision, where voxel grids, meshes, point clouds, and implicit surface models are used. This is seen from the growing popularity of ShapeNet (51,300 models) and Princeton ModelNet (127,915 models).

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Sleep is a vital biological function that significantly influences overall health. While sleep deprivation (SD) and circadian rhythm disruption are known to negatively impact various organs, their specific effects on kidney function remain understudied. This study aimed to investigate the impact of chronic partial sleep deprivation and circadian rhythm disruption on renal function in rats, providing insights into the relationship between sleep disturbances and kidney health.

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Brain organoids offer unprecedented insights into brain development and disease modeling and hold promise for drug screening. Significant hindrances, however, are morphological and cellular heterogeneity, inter-organoid size differences, cellular stress, and poor reproducibility. Here, we describe a method that reproducibly generates thousands of organoids across multiple hiPSC lines.

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Numerous experimental studies suggest the potential for resveratrol (RVT) to be useful in the Alzheimer's disease treatment, but its low bioavailability limits its application. This study aimed to assess the potential of resveratrol-loaded micelles as a neuronal delivery platform to protect rats from scopolamine-induced memory impairment. Resveratrol was incorporated into Pluronic micelles, and the effects of micellar (mRVT) and pure resveratrol (RVT) were compared in the model of scopolamine-induced dementia in male Wistar rats.

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Alzheimer's disease (AD) has long proven to be a complex neurodegenerative disorder, with cholinergic dysfunction, oxidative stress, and neuroinflammation being just a few of its pathological features. The complexity of the disease requires a multitargeted treatment covering its many aspects. In the present investigation, an arylhydrazone derivative of 5-methoxyindole-2-carboxylic acid (5MeO), with in vitro strong antioxidant, neuroprotective and monoamine oxidase B-inhibiting effects, was studied in a scopolamine-induced Alzheimer-type dementia in rats.

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Ionic signalling (beyond calcium) in the nervous system: Physiology and pathophysiology.

Cell Calcium

December 2024

Faculty of Biology, Medicine and Health, The University of Manchester, Oxford Rd Manchester, M13 9PL, UK; Department of Neurosciences, University of the Basque Country, CIBERNED, Leioa 48940, Bizkaia, Spain; IKERBASQUE Basque Foundation for Science, Bilbao, Spain; Department of Forensic Analytical Toxicology, School of Forensic Medicine, China Medical University, Shenyang, China; International Collaborative Center on Big Science Plan for Purinergic Signalling, Chengdu University of Traditional Chinese Medicine, Chengdu, China. Electronic address:

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New alternative approaches to stroke treatment: the blood cell-derived secretome shows promise in individuals with obesity.

Metab Brain Dis

December 2024

Biomedical Research Center of the Slovak Academy of Sciences, Institute of Neurobiology, Soltesovej 4-6, 040 01, Košice, Slovak Republic.

Ischaemic tolerance induced by remote ischaemic conditioning (RIC) has been extensively demonstrated in several preclinical models of cerebral ischaemia. However, animals with common stroke-related comorbidities do not benefit from the recent advances of RIC. Therefore, we investigated two alternative approaches for obese animals with stroke: (1) the efficacy of an additional round of the standard RIC protocol, and (2) the paracrine potential of the blood cell-derived secretome derived from RIC-induced healthy young rats.

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The gustatory system allows us to perceive and distinguish sweetness from water. We studied this phenomenon by recording neural activity in rats' anterior insular (aIC) and orbitofrontal (OFC) cortices while they categorized varying sucrose concentrations against water. Neurons in both aIC and OFC encoded the categorical distinction between sucrose and water rather than specific sucrose concentrations.

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Purpose: β-amyloid overload-induced neuroinflammation and neuronal loss are key pathological changes that occur during the progression of Alzheimer's disease (AD). Dexmedetomidine (Dex) exhibits neuroprotective and anti-inflammatory effects on the nervous system. However, the effect of Dex in AD mice remains unclear, and its neuroprotective regulatory mechanism requires further investigation.

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Alzheimer's disease (AD) is the most widespread neurodegenerative disorder. Recently, it was found that mucus extract from has beneficial effects on memory and cognitive processes in a rat scopolamine model of AD. The present study elucidated the mechanisms of action of standardized mucus snail extract (SE) enriched with a fraction above 20 kDa on Alzheimer-type dementia in rats.

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With the recent surge in the development of highly selective probes, fluorescence microscopy has become one of the most widely used approaches to studying cellular properties and signaling in living cells and tissues. Traditionally, microscopy image analysis heavily relies on manufacturer-supplied software, which often demands extensive training and lacks automation capabilities for handling diverse datasets. A critical challenge arises if the fluorophores employed exhibit low brightness and a low signal-to-noise ratio (SNR).

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Article Synopsis
  • * Tetramethylpyrazine was tested as a potential treatment to mitigate these impairments, showing positive effects on learning and memory, as well as reducing neuronal damage.
  • * The study concluded that tetramethylpyrazine enhances synaptic plasticity in the hippocampus, helping to reverse the negative effects of sevoflurane on developing brains.
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Brain pH is precisely regulated, and pH transients associated with activity are rapidly restored under physiological conditions. During ischemia, the brain's ability to buffer pH changes is rapidly depleted. Tissue oxygen deprivation causes a shift from aerobic to anaerobic metabolism and the accumulation of lactic acid and protons.

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Scope: Metabolic dysfunction-associated steatotic liver disease (MASLD) is a global health issue with increasing prevalence. Polyphenols, such as grape seed proanthocyanidin extract (GSPE), are bioactive compounds present in plants and represent an interesting therapeutical approach for MASLD.

Methods And Results: This study questioned whether the timing of GSPE administration impacts liver diurnal metabolism and steatosis in a rat obesity model.

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A decade of research on gluten-related disorders (GRDs) is reviewed in this study, with a particular emphasis on celiac disease (CD) and non-celiac gluten sensitivity (NCGS). GRDs are triggered by the ingestion of gluten and gluten-like proteins found in wheat, barley, and rye. These proteins lead to intestinal damage in celiac disease, an autoimmune condition characterized by villous atrophy and a variety of gastrointestinal and extraintestinal symptoms.

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High-Salt Diet Accelerates Neuron Loss and Anxiety in Mice Through Serpina3n.

Int J Mol Sci

October 2024

Department/Institute of Neurobiology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an 710061, China.

Article Synopsis
  • * Experiments showed that HS diets resulted in higher levels of anxiety, neuron loss, and β-amyloid buildup in specific regions of the brain, particularly in certain mouse models compared to normal diets.
  • * The study identifies that a protein called Serpina3n might play a key role in the negative effects of high salt intake, suggesting that lowering salt consumption could help prevent the worsening of conditions like Alzheimer's.
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Melatonin's role in the timing of sleep onset is conserved in nocturnal mice.

NPJ Biol Timing Sleep

November 2024

School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, QLD Australia.

Melatonin supplementation strengthens non-restorative sleep rhythms and its temporal alignment in both humans and night-active rodents. Of note, although the sleep cycle is reversed in day-active and night-active (nocturnal) mammals, both, produce melatonin at night under the control of the circadian clock. The effects of exogenous melatonin on sleep and sleepiness are relatively clear, but its endogenous role in sleep, particularly, in timing sleep onset (SO), remains poorly understood.

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The relationship between chronic heavy drinking and post-traumatic stress disorder (PTSD) is well-documented; however, the impact of more common drinking patterns, such as a single episode leading to a blood alcohol concentration (BAC) of 0.09 g/dL (moderate intoxication), remains underexplored. Given the frequent co-occurrence of PTSD and alcohol misuse, it is essential to understand the biological and behavioral factors driving this comorbidity.

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Shelter selection in females of two scorpion species depends on shelter size and scent.

J Comp Physiol A Neuroethol Sens Neural Behav Physiol

November 2024

Institute of Neurobiology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.

Shelter selection is an important task in an animal's life. Concerning scorpions, little is known on the evaluation of potential shelters and the importance of chemosensation. To address these issues, we conducted a two-choice shelter test in rectangular open field arenas to identify properties rendering shelters attractive for female scorpions of the species E.

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In the brains of adult rodents, the cells arising in the subventricular zone of the lateral ventricles maintain the ability to divide when migrating to the olfactory bulb along the rostral migratory stream (RMS). Dividing cells in the RMS are most frequently revealed through immunohistochemical detection of an exogenous marker of proliferation, 5-Bromo-2-deoxyuridine (BrdU), which incorporates into DNA during the S-phase of mitosis. The more recently recognized antigen Ki-67 (also known as Kiel-67 and MKI67), an endogenous protein expressed in nuclei at all stages of mitosis, is also used for proliferation detection.

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Although the Djungarian hamster (Phodopus sungorus) is a seasonality model, it presents substantial variability in winter acclimation. In response to short photoperiod, some individuals express a suite of winter traits such as low body mass, regressed gonads, white fur, and daily torpor, while others develop only some adjustments or maintain a summer phenotype. Despite comprehensive research, the mechanisms underlying polymorphism of winter phenotype are still unknown.

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Newly acquired information is stabilized into long-term memory through the process of consolidation. Memories are not static; rather, they are constantly updated via reactivation, and this reactivation occurs preferentially during slow-wave sleep (SWS; also referred to as N3 in humans). Here we present a scalable neuroscience research investigation of memory reactivation using low-cost electroencephalogram (EEG) recording hardware and open-source software for students and educators across the K-12 and higher education spectrum.

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Glaucoma-inducing retinal ganglion cell degeneration alters diurnal rhythm of key molecular components of the central clock and locomotor activity in mice.

FASEB J

October 2024

Laboratório de Cronobiologia Molecular, Departamento de Ciências Biológicas, Instituto de Ciências Ambientais Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, Brazil.

Glaucoma is a chronic optic neuropathy characterized by the progressive degeneration of retinal ganglion cells (RGC). These cells play a crucial role in transmitting visual and non-visual information to brain regions, including the suprachiasmatic nucleus (SCN), responsible for synchronizing biological rhythms. To understand how glaucoma affects circadian rhythm synchronization, we investigated potential changes in the molecular clock machinery in the SCN.

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