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Neurobiology

Physiological and Psychological Factors in Developing Comorbid Mood Disorders in Complex Regional Pain Syndrome Patients

Complex regional pain syndrome (CRPS), a neuroinflammatory disease, ranks number one on the McGill Pain Scale, topping fibromyalgia, cancer, and amputation without anesthetics. The development of CRPS typically occurs after trauma to the arm or leg (e.g., breaking of a bone, dislocation of a joint, surgical trauma to a limb) that results in a disproportionately high sensation of pain. This painful response is chronic and characterized by constant pain with additional flare-ups that last different amounts of time from person to person.

Recent Innovations in Alzheimer’s Disease Care: Advances in Diagnostics, Therapy, and AI Caregiver Support

Introduction

Alzheimer’s disease is a progressive neurodegenerative disorder that affects an estimated 6.9 million Americans today, a figure expected to rise significantly with population aging [1]. As the most common cause of dementia, Alzheimer’s is a leading contributor to disability and dependency among older adults, placing an immense burden, both mental and fiscal, on patients, families, and healthcare systems. In 2023, over 11 million informal and unpaid caregivers in the U.S. provided 18.4 billion hours of care, valued at $346.6 billion [1].

Ophiocordyceps: How the Zombie Ant Fungus Manipulates Host Behavior

In the zombie-apocalypse video game and hit TV series The Last of Us, a fungus infects humans and takes control of their minds, mutating them into putrid monsters. This was was inspired by Ophiocordyceps, a genus of parasitic fungi that infects ants. Even though this fungus cannot affect humans, other parasites can. Studying the processes that underlie Ophiocordyceps infection can help us enhance our understanding of human parasites and other pathogens. This review will compile known factors and mechanisms involved in Ophiocordyceps’ manipulation of its host, from initial infection to death.

Atypical vs. Typical Antipsychotic Effects on Quality of Life and Symptom Management in Schizophrenic Patients

Abstract

Objective: To establish the differences between atypical antipsychotics and typical antipsychotics involving quality of life and symptom management in adult patients with schizophrenia. Methods: Eligible studies were sourced from SCOPUS, PubMed, APA PsycInfo and PsychiatryOnline Premium databases.

Ketamine-Induced Modulation of Glutamatergic Signaling: A Potential Alternative Treatment for Major Depression

Over the past two decades, the psychedelic ketamine has gained traction among scientists and mental health providers as a potential alternative treatment for depression. However, ketamine’s actions on a molecular level are still not fully understood, and its adverse side effects present a recurrent challenge. This review will provide an overview of results from preclinical and clinical trials of ketamine-based therapeutics for major depression

Adolescent Marijuana Use: Effects On Cognitive Functioning

As more states have legalized the recreational use of marijuana, its use among adolescents is increasing. This is problematic because marijuana's psychoactive component, THC, can act directly on parts of the brain in critical development during adolescence. Current literature proposes long-term cognitive effects based on recurring correlations; however, a lack of consistent and reliable approaches for controlling confounding variables remains an issue. This review will focus on the current state of research on the effects of adolescent marijuana use on cognitive function, its potential long-term consequences, and highlight the inconsistencies in research methodologies.

Chronological Shifts: How Circadian Rhythm Changes with Age in Mammals

Circadian rhythms in mammals are orchestrated by a highly prevalent timing system, at the heart of which lies a complex molecular process regulated by a central clock in the brain. Similar to other physiological systems, the circadian system undergoes degradation with age. This article aims to introduce the definition of circadian rhythm, delve into its fundamental principles, and explore the correlation between changes in circadian rhythm and the aging process.

Grow your Brain: Neurological Impacts of Yoga Practice

Neurodegenerative diseases, such as Alzheimer’s, Parkinson’s, and Huntington's disease, have no known cure. Interventions such as a healthy diet and regular exercise have in place been widely encouraged in order to delay onset or slow progression of symptoms. Yoga is one form of physical exercise that has been shown to positively impact the neuromorphology in the brain by increasing gray matter volume and stimulating the hippocampus to lower stress levels and improve memory retention. This review focuses on the effects of Yoga practice on the brain and its potential as a productive, noninvasive, and affordable practice for brain stimulation that could impact incurable neurodegenerative diseases.

The Quiet Truth of Circadian Rhythm: Light and Phosphorylation

Jay is a college student at UC Davis studying Biology, but like most college students, he lacks a consistent sleep schedule due to his late-night bouts of studying on his computer. There are many factors that impact his sleep, such as caffeine intake, room temperature, noisy roommates... and the list continues. But surprisingly, light generates the largest impact on our sleep. And from light, phosphorylation occurs, driving cell signaling within the body. Light drives circadian rhythm as it causes phosphate groups to activate many of the necessary proteins within the sleep mechanism.

Subthalamic Deep Brain Stimulation Parameters for Gait Impairment in Parkinson’s Disease Patients

Parkinson’s disease is an age-associated neurodegenerative disease that affects about 572/100,000 North Americans ages 45 and older. Typical treatment of symptoms includes dopaminergic medications, such as Levodopa; however, some patients cannot tolerate the side effects or do not experience symptom reduction. In these cases, more invasive treatments must be considered by treating clinicians. This review aims to evaluate the current evidence for proper treatment parameters for gait impairment, with particular focus on subthalamic deep brain stimulation—an invasive yet effective treatment for the motor symptoms of Parkinson’s disease.