The life span of individuals that are sero-positive for human immunodeficiency virus (HIV) has greatly improved; however, complications involving the central nervous system (CNS) remain a concern. While HIV does not directly infect neurons, the proteins produced by the virus, including HIV transactivator of transcription (Tat), are released from infected glia; these proteins can be neurotoxic. This neurotoxicity is thought to mediate the pathology underlying HIVassociated neurological impairments. Cocaine abuse is common among HIV infected individuals, and this abuse augments HIV-associated neurological deficits. The brain regions and pathophysiological mechanisms that are dysregulated by both chronic cocaine and Tat are the focus of the current review.
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http://dx.doi.org/10.2174/0929867322666150311164504 | DOI Listing |
Cureus
December 2024
Cardiology, Lower Bucks Hospital, Bristol, USA.
This case report presents a 37-year-old male with a complex medical history, including HIV, chronic methamphetamine and cocaine use, and an atrial septal defect, who developed severe pulmonary arterial hypertension (PAH), biventricular failure, and recurrent stroke. The patient was admitted with acute neurological deficits and respiratory failure, which rapidly progressed despite intensive management. Laboratory and imaging studies revealed severe cardiac dysfunction and elevated pulmonary vascular resistance.
View Article and Find Full Text PDFmedRxiv
December 2024
AI.Health4All Center for Health Equity using Machine Learning and Artificial Intelligence, College of Medicine, University of Illinois Chicago, Chicago, IL, USA.
Objectives: The accurate identification of Emergency Department (ED) encounters involving opioid misuse is critical for health services, research, and surveillance. We sought to develop natural language processing (NLP)-based models for the detection of ED encounters involving opioid misuse.
Methods: A sample of ED encounters enriched for opioid misuse was manually annotated and clinical notes extracted.
J Clin Med
November 2024
Addictovigilance Centre, Montpellier University Hospital, 34295 Montpellier, France.
Cocaine use can cause multiple cardiovascular complications, including heart failure. This general review of the literature delivers data on the relationship between cocaine consumption and the development of heart failure, as well as the elements of its diagnosis and management. A literature search was carried out using the PubMed, Web Of Science, and Google Scholar bibliographic databases over the period of 2007-2022 using the following keywords: "cocaine" AND "heart failure" NOT "acute heart disease".
View Article and Find Full Text PDFScience
December 2024
Department of Neuroscience, Medical University of South Carolina, Charleston, SC, USA.
Emotional experiences often evoke neural plasticity that supports adaptive changes in behavior, including maladaptive plasticity associated with mood and substance use disorders. These adaptations are supported in part by experience-dependent activation of immediate-early response genes, such as (neuronal PAS domain protein 4). Here we show that a conserved long noncoding enhancer RNA (lnc-eRNA), transcribed from an activity-sensitive enhancer, produces DNA:RNA hybrid R-loop structures that support three-dimensional chromatin looping between enhancer and proximal promoter and rapid gene induction.
View Article and Find Full Text PDFPsychopharmacology (Berl)
December 2024
Department of Population Health Sciences, Unit of Animals in Science and Society, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
Rationale: Substance use disorder (SUD) is a chronic relapsing brain disorder that is characterised by loss of control over substance use. A variety of rodent models employing punishment setups have been developed to assess loss of control over substance use, i.e.
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