Mechanisms for substance use disorders in COVID-19.
Ontology highlight
ABSTRACT:
SUBMITTER: Lin Z
PROVIDER: S-EPMC7883533 | biostudies-literature |
REPOSITORIES: biostudies-literature
Similar Datasets
Project description:Addiction is a devastating disorder that produces persistent maladaptive changes to the central nervous system, including glial cells. Although there is an extensive body of literature examining the neuronal mechanisms of substance use disorders, effective therapies remain elusive. Glia, particularly microglia and astrocytes, have an emerging and meaningful role in a variety of processes beyond inflammation and immune surveillance, and may represent a promising therapeutic target. Indeed, glia actively modulate neurotransmission, synaptic connectivity and neural circuit function, and are critically poised to contribute to addictive-like brain states and behaviors. In this review, we argue that glia influence the cellular, molecular, and synaptic changes that occur in neurons following drug exposure, and that this cellular relationship is critically modified following drug exposure. We discuss direct actions of abused drugs on glial function through immune receptors, such as Toll-like receptor 4, as well as other mechanisms. We highlight how drugs of abuse affect glia-neural communication, and the profound effects that glial-derived factors have on neuronal excitability, structure, and function. Recent research demonstrates that glia have brain region-specific functions, and glia in different brain regions have distinct contributions to drug-associated behaviors. We will also evaluate the evidence demonstrating that glial activation is essential for drug reward and drug-induced dopamine release, and highlight clinical evidence showing that glial mechanisms contribute to drug abuse liability. In this review, we synthesize the extensive evidence that glia have a unique, pivotal, and underappreciated role in the development and maintenance of addiction.
| S-EPMC6428630 | biostudies-literature
Project description:COVID-19 shocked health and economic systems leaving millions of people without employment and safety nets. The pandemic disproportionately affects people with substance use disorders (SUDs) due to the collision between SUDs and COVID-19. Comorbidities and risk environments for SUDs are likely risk factors for COVID-19. The pandemic, in turn, diminishes resources that people with SUD need for their recovery and well-being. This article presents an interdisciplinary and international perspective on how COVID-19 and the related systemic shock impact on individuals with SUDs directly and indirectly. We highlight a need to understand SUDs as biopsychosocial disorders and use evidence-based policies to destigmatize SUDs. We recommend a suite of multi-sectorial actions and strategies to strengthen, modernize and complement addiction care systems which will become resilient and responsive to future systemic shocks similar to the COVID-19 pandemic.
| S-EPMC7396653 | biostudies-literature
Project description:BackgroundAs the emergency department (ED) has evolved into the de-facto site of care for a variety of substance use disorder (SUD) presentations, trends in ED utilization are an essential public health surveillance tool. Changes in ED visit patterns during the COVID-19 pandemic may reflect changes in access to outpatient treatment, changes in SUD incidence, or the unintended effects of public policy to mitigate COVID-19. We use a national emergency medicine registry to describe and characterize trends in ED visitation for SUDs since 2019.MethodsWe included all ED visits identified in a national emergency medicine clinical quality registry, which included 174 sites across 33 states with data from January 2019 through June 2021. We defined SUD using ED visit diagnosis codes including: opioid overdose and opioid use disorder (OUD), alcohol use disorders (AUD), and other SUD. To characterize changes in ED utilization, we plotted the 3-week moving average ratio of visit counts in 2020 and 2021 as compared to visit counts in 2019.FindingsWhile overall ED visits declined in the early pandemic period and had not returned to 2019 baseline by June 2021, ED visit counts for SUD demonstrated smaller declines in March and April of 2020, so that the proportion of overall ED visits that were for SUD increased. Furthermore, in the second half of 2020, ED visits for SUD returned to baseline, and increased above baseline for OUD ever since May 2020.ConclusionsWe observe distinct patterns in ED visitation for SUDs over the course of the COVID-19 pandemic, particularly for OUD for which ED visitation barely declined and now exceeds previous baselines. These trends likely demonstrate the essential role of hospital-based EDs in providing 24/7/365 care for people with SUDs and mental health conditions. Allocation of resources must be directed towards the ED as a de-facto safety net for populations in crisis.
| S-EPMC8757912 | biostudies-literature
Project description:Rapidly rising drug overdose rates in the United States during the past decade underscore the need to increase access to treatment among people with substance use disorders (SUDs). We analyzed trends in the use of treatment services among people with SUDs during the period 2010-19, using data from the National Survey on Drug Use and Health. Compared with 2013, outpatient visits for general health in the prior year increased 3.6 percentage points by the 2017-19 period. Use of any SUD treatment in the prior year remained unchanged, but treatment use among people involved in the criminal legal system increased by about 6.2 percentage points by the end of the study period. Among those receiving SUD treatment, there was a 14.9-percentage-point increase in having treatment paid for by Medicaid between 2010-13 and 2017-19. Although access to general medical care and insurance coverage have improved for people with SUD, our study findings underscore the importance of renewed efforts to increase the use of SUD treatment.
| S-EPMC10161241 | biostudies-literature
Project description:ObjectiveHigher opioid overdoses and drug use have reportedly occurred during the COVID-19 pandemic. We provide evidence on how emergency department (ED) visits for substance use disorders (SUD) changed in the early pandemic period.MethodsUsing retrospective data from January-July 2020 compared to January-July 2019, we calculated weekly 2020/2019 visit ratios for opioid-related, alcohol-related, other drug-related disorders, and all non-COVID-19 visits. We assess how this ratio as well as overall visit numbers changed after the mid-March 2020 onset of general pandemic restrictions.ResultsIn 4.5 million ED visits in 2020 and 2019 to 108 EDs in 18 U.S. states, SUD visits were higher in early 2020 compared to 2019. During the peak-pandemic restriction period (March 13-July 31), non-COVID-19, non-SUD visits fell by approximately 45% early on, and then partly recovered with an average decline of 33% relative to 2019 levels. Visits for opioid-related, alcohol-related, and other drug-related disorders also declined, although less sharply, with an average drop of 17%, which was similar across SUD types. The visit ratios for 2020/2019 partially or fully recovered later in our sample period, depending on SUD type, but did not exceed early-2020 levels. However, substantial variation occurred across SUD types and across states. SUD visit declines were most prominent in the 65+ age group, except for alcohol-related visits where trends were similar across ages. SUD visits arriving by ambulance declined less or increased relative to self-transport visits, and ED deaths were rare.ConclusionsThe 2020/2019 ratios of SUD ED visits fell substantially early in the COVID-19 pandemic, yet less than non-SUD, non-COVID ED visits. SUD ED visit ratios partly or fully recovered to 2019 levels by early June 2020, but did not exceed early 2020 ratios.
| S-EPMC9581895 | biostudies-literature
Project description:IntroductionNext to an increased use of alcohol, the current pandemic has been associated with increased psychological distress among the general population. Research on its effects on individuals suffering from substance use disorders (SUD) is scarce. This study aimed at expanding the existing literature on this topic with a focus on the impact of loneliness and perceived social support.MethodsSixty-eight people diagnosed with SUD according to ICD-10 from the Austrian state of Tyrol and from the Italian Province of South Tyrol who had been treated in a psychiatric hospital in 2019 and one hundred and thirty-six matched reference subjects of the same regional background participated in an online survey. Sociodemographic variables and scores on the Brief Symptom Checklist, the Three-Item Loneliness Scale, and the Multidimensional Scale of Perceived Social Support were collected at baseline and 5 months thereafter. Baseline took place after the first wave, while follow-up largely coincided with the second wave of the pandemic.ResultsAmong both patients and the matched reference group, substance use as a means to feel better facing the pandemic rose and predicted higher levels of psychological distress. Patients were less likely to receive specific care at follow-up than at baseline and presented with a significantly higher prevalence of clinically relevant psychological distress and loneliness than the matched reference group at both assessment times. Among both groups, psychological burden remained unchanged over time. Perceived social support was generally significantly higher in the matched reference group than in patients. Loneliness and, to a lesser degree, low perceived social support predicted psychological distress.ConclusionThese findings emphasize the need of preventive and educational measures regarding substance use behavior for both individuals suffering from SUD and those without mental health disorders.
| S-EPMC9380400 | biostudies-literature
Project description:Objectives: The COVID 19 pandemic has created challenges in providing timely care for patients and families with Substance Use disorders (SUDs). With the difficulties in face-to-face consultations because of social distancing measures, telepsychiatry services can be beneficial. The study proposes implementing an e-consult for SUD management and measuring its acceptability among the health care providers (HCPs) in India.Methods: The mobile-based e-consult for SUD, connecting HCPs with addiction specialists, was implemented during the COVID lockdown period in India from 25 March to 31 May (71 days). A total of 153 HCPs, i.e., doctors, nurses, counselors, consulted for 110 cases of SUD. Sixty-eight provided feedback by filling the survey form derived from the Service User Technology Acceptability Questionnaire (SUTAQ).Result: More than 60% of HCPs reported overall high satisfaction. More than 98% providers reported high acceptability concerning"access to specialist care," "trusted to work appropriately", "saving time," "would like torecommend to others," easier to get touch with a specialist." The doctors reported significantly high acceptability about "access to specialist care," "satisfied with recommendations,"recommend to others" compared to other HCPs.Conclusion: During COVID 19 pandemic lockdown in India, e-consult was an acceptable tool in managing SUDs. The majority of HCPs could discuss their cases with addiction experts. There is a need to expand this further in other mental health conditions.
| S-EPMC7557176 | biostudies-literature
Project description:BackgroundSubstance use disorders (SUD) elevate the risk for COVID-19 hospitalization, but studies are inconsistent on the relationship of SUD to COVID-19 mortality.MethodsVeterans Health Administration (VHA) patients treated in 2019 and evaluated in 2020 for COVID-19 (n=5,556,315), of whom 62,303 (1.1%) tested positive for COVID-19 (COVID-19+). Outcomes were COVID-19+ by 11/01/20, hospitalization, ICU admission, or death within 60 days of a positive test. Main predictors were any ICD-10-CM SUDs, with substance-specific SUDs (cannabis, cocaine, opioid, stimulant, sedative) explored individually. Logistic regression produced unadjusted and covariate-adjusted odds ratios (OR; aOR).ResultsAmong COVID-19+ patients, 19.25% were hospitalized, 7.71% admitted to ICU, and 5.84% died. In unadjusted models, any SUD and all substance-specific SUDs except cannabis use disorder were associated with COVID-19+(ORs=1.06-1.85); adjusted models produced similar results. Any SUD and all substance-specific SUDs were associated with hospitalization (aORs: 1.24-1.91). Any SUD, cocaine and opioid disorder were associated with ICU admission in unadjusted but not adjusted models. Any SUD, cannabis, cocaine, and stimulant disorders were inversely associated with mortality in unadjusted models (OR=0.27-0.46). After adjustment, associations with mortality were no longer significant. In ad hoc analyses, adjusted odds of mortality were lower among the 49.9% of COVID-19+ patients with SUD who had SUD treatment in 2019, but not among those without such treatment.ConclusionsIn VHA patients, SUDs are associated with COVID-19 hospitalization but not COVID-19 mortality. SUD treatment may provide closer monitoring of care, ensuring that these patients received needed medical attention, enabling them to ultimately survive serious illness.
| S-EPMC8891118 | biostudies-literature
Project description:Since March 2020, the COVID-19 pandemic has had a disproportionately high toll on vulnerable populations, coinciding with increased prevalence of alcohol-and drug-related deaths and pre-existing societal issues such as rising income inequality and homelessness. This poly-crisis has posed unique challenges to service delivery for people with substance use disorders, and innovative approaches have emerged. In this Perspectives paper we reflect on the poly-crisis and the changes to research and practice for those experiencing substance use disorders, following work undertaken as part of the InterGLAM project (part of the 2022. Lisbon Addictions conference). The authors, who were part of an InterGLAM working group, identified a range of creative and novel responses by gathering information from conference attendees about COVID-19-related changes to substance use disorder treatment in their countries. In this paper we describe these responses across a range of countries, focusing on changes to telehealth, provision of medications for opioid use disorder and alcohol harm reduction, as well as changes to how research was conducted. Implications include better equity in access to technology and secure data systems; increased prescribed safer supply in countries where this currently does not exist; flexible provision of medication for opioid use disorder; scale up of alcohol harm reduction for people with alcohol use disorders; greater involvement of people with lived/living experience in research; and additional support for research in low- and middle-income countries. The COVID-19 pandemic has changed the addictions field and there are lessons for ongoing and emerging crises.
| S-EPMC10390069 | biostudies-literature
Project description:As time passes, the long-term effects of the COVID-19 pandemic are becoming increasingly apparent. The extreme restrictions imposed during the pandemic have had detrimental impacts on the most vulnerable groups, such as individuals suffering from substance and/or alcohol disorders (SUDs). This study reports quarterly laboratory data on alcohol and drug use in 150 subjects with SUDs that were examined using hair analysis for 2 years before the start of pandemic until after the end of the Italian health emergency. Overall, it was found that the number of subjects who used heroin, cocaine, and MDMA all decreased during the 2020 and 2021 lockdowns, increasing during reopening and subsequently stabilizing close to pre-COVID levels. Cannabis use was less impacted, remaining stable throughout the pandemic. Alcohol and benzodiazepine use both increased significantly during the lockdowns, displaying an opposing trend. While benzodiazepine use progressively returned to baseline levels, alcohol remained at significantly increased levels, even in September 2022. Long-term heavy drinking combined with substance use should be seriously considered, since these results in several health and social problems alongside alcohol-related comorbidities. Thus, appropriate response plans should be implemented both during and after the pandemic, whilst focusing on those who are most vulnerable.
| S-EPMC10341792 | biostudies-literature