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Neuroplasticity research published in 2021

Page 2 of 2: studies 21 to 32 of 32, newest first. Back to the neuroplasticity overview

Studies

Non-replication of structural brain changes from Mindfulness-Based Stress Reduction: Two combined randomized controlled trials

medRxiv June 16, 2021 Tammi R. A. Kral, Kaley Davis, Cole Korponay et al. 2 citations preprint

Abstract Studies purporting to show changes in brain structure following the popular, eight-week Mindfulness-Based Stress Reduction (MBSR) course are widely referenced despite major methodological limitations. Here, we present findings from a large, combined dataset of two, three-arm randomized controlled trials with active and waitlist (WL) control groups. Meditation-naive participants (n=218)...

DOI: 10.1101/2021.06.14.21258762 (opens in new tab) Full text (opens in new tab) Neuroplasticity Meditation Mindfulness-based stress reduction Randomized controlled trial +2

Catalysts for change: the cellular neurobiology of psychedelics

Molecular Biology of the Cell May 27, 2021 Matthew I. Banks, Zarmeen Zahid, N. Jones et al. 37 citations

The resurgence of interest in the therapeutic potential of psychedelics for treating psychiatric disorders has rekindled efforts to elucidate their mechanism of action. In this Perspective, we focus on the ability of psychedelics to promote neural plasticity, postulated to be central to their therapeutic activity. We begin with a brief overview of the history and behavioral effects of the...

Impairment of Synaptic Plasticity by Cannabis, Δ9-THC, and Synthetic Cannabinoids.

Cold Spring Harbor perspectives in medicine May 3, 2021 Alexander F. Hoffman, Eun-Kyung Hwang, Carl R. Lupica preprint

The ability of neurons to dynamically and flexibly encode synaptic inputs via short- and long-term plasticity is critical to an organism's ability to learn and adapt to the environment. Whereas synaptic plasticity may be encoded by pre- or postsynaptic mechanisms, current evidence suggests that optimization of learning requires both forms of plasticity. Endogenous cannabinoids (eCBs) play...

(R,S)-Ketamine Promotes Striatal Neurogenesis and Sensorimotor Recovery Through Improving Poststroke Depression–Mediated Decrease in Atrial Natriuretic Peptide

Biological Psychiatry Global Open Science April 1, 2021 Yujing Zhang, Bing Xie, Yin Yuan et al.

Background Poststroke social isolation could worsen poststroke depression and dampen neurogenesis. (R,S)-ketamine has antidepressant and neuroprotective effects; however, its roles and mechanisms in social isolation–mediated depressive-like behaviors and sensorimotor recovery remain unclear. Methods Mice were subjected to transient middle cerebral artery occlusion, and then were pair-housed...

Detrimental effects of adolescent escalating low-dose Δ9 -tetrahydrocannabinol leads to a specific bio-behavioural profile in adult male rats.

British Journal of Pharmacology April 2021 Nafsika Poulia, Foteini Delis, Charalampos Brakatselos et al.

Adolescent cannabis use is associated with adult psychopathology. When Δ9 -tetrahydrocannabinol (THC), mainly in high doses, is administered to adolescence rats there are also long lasting effects in adults. This study aims to determine the specific adult bio-behavioural profile after adolescent low-dose THC, which better mirrors adolescent recreational cannabis use. Adolescent male...

DOI: 10.1111/bph.15394 (opens in new tab) Full text (opens in new tab) Neurogenesis Adolescent Biochemical pharmacology Cannabinoid +3

Mindfulness intervention for mild cognitive impairment led to attention-related improvements and neuroplastic changes: Results from a 9-month randomized control trial.

Journal of Psychiatric Research March 1, 2021 Junhong Yu, Iris Rawtaer, Lei Feng et al.

Mindfulness-based interventions can enhance cognitive abilities among older adults, thereby effectively delaying cognitive decline. These cognitive enhancements are theorized to accompany neuroplastic changes in the brain. However, this mindfulness-associated neuroplasticity has yet to be documented adequately. A randomized controlled trial was carried out among participants with mild cognitive...

Prolonged epigenetic and synaptic plasticity alterations following single exposure to a psychedelic in mice

bioRxiv (Cold Spring Harbor Laboratory) February 25, 2021 Mario de la Fuente Revenga, Bohan Zhu, Christopher A. Guevara et al. 11 citations preprint

Clinical evidence suggests a potential therapeutic effect of classic psychedelics for the treatment of depression. The most outstanding and distinct characteristic is the rapid and sustained antidepressant action with one single exposure to the drug. However, the biological substrates and key mediators of psychedelics’ enduring action remain unknown. Here, we show that a single administration...

Epigenetic Repair of Terrifying Lucid Dreams by Enhanced Brain Reward Functional Connectivity and Induction of Dopaminergic Homeostatic Signaling.

Current Psychopharmacology February 15, 2021 Kenneth Blum, Thomas Mclaughlin, Edward J Modestino et al. 9 citations

During Lucid Dreams, the dreamer is aware, experiences the dream as if fully awake, and may control the dream content. The dreamer can start, stop, and restart dreaming, depending on the nature and pleasantness of the dream. For patients with Reward Deficiency Syndrome (RDS) behaviors, like Attention Deficit Hyperactivity Disorder (ADHD), Tourette's- Syndrome, and Posttraumatic Stress Disorder...

DOI: 10.2174/2211556010666210215153513 (opens in new tab) Full text (opens in new tab) Neuroplasticity Lucid dreams Dopaminergic homeostatic signaling Functional connectivity +1

Lysergic acid diethylamide (LSD) promotes social behavior through mTORC1 in the excitatory neurotransmission

Proceedings of the National Academy of Sciences January 25, 2021 Danilo de Gregorio, Jelena Popić, Justine P. Enns et al. 137 citations

Clinical studies have reported that the psychedelic lysergic acid diethylamide (LSD) enhances empathy and social behavior (SB) in humans, but its mechanism of action remains elusive. Using a multidisciplinary approach including in vivo electrophysiology, optogenetics, behavioral paradigms, and molecular biology, the effects of LSD on SB and glutamatergic neurotransmission in the medial...

DOI: 10.1073/pnas.2020705118 (opens in new tab) Full text (opens in new tab) Synaptic plasticity Excitatory postsynaptic potential Neurotransmission Ampa receptor +4

Effects of one month of Common Yoga Protocol practice appear to be mediated by the angiogenic and neurogenic pathway: A pilot study.

Explore 2021 Kanupriya Sharma, Viraaj Pannu, Natasha Sayal et al.

To examine the molecular effects of mindful activities such as yoga and meditation DESIGN: This was an open label single arm exploratory yoga intervention study. 64 healthy individuals within the age of 18-60 years were recruited for this one month yoga intervention study. Common Yoga Protocol (CYP) is a standardized yoga protocol released by Ministry of AYUSH, India for International Yoga Day....

Engineering Safer Psychedelics for Treating Addiction.

Neuroscience Insights 2021 Jamie Peters, David E. Olson 38 citations

Addiction is best described as a disorder of maladaptive neuroplasticity involving the simultaneous strengthening of reward circuitry that drives compulsive drug seeking and weakening of circuits involved in executive control over harmful behaviors. Psychedelics have shown great promise for treating addiction, with many people attributing their therapeutic effects to insights gained while under...