Cognitive impairment in 'non-user' first-degree relatives of persons with cannabis dependence syndrome: A pilot, endophenotype study

INTRODUCTION

Cannabis use disorders are global emerging problem nowadays, with high prevalence and morbidity. Cognitive impairments, and also corresponding genetic vulnerability, has been fairly replicated in individuals with cannabis dependence. However, there are few studies that assess cognitive functioning as an endophenotype or a trait marker for cannabis dependence. While the primary objective of this study was to assess the endophenotype pattern of cognitive dysfunction in cannabis dependence, assessing the association between the degree of cognitive functioning, and their socio-demographic and clinical variables in the cannabis dependence patients and their first-degree relatives was the secondary objective.

METHODOLOGY

We compared cognitive functioning across three groups- patients with cannabis dependence syndrome, their 'non-user' first-degree relatives and healthy controls, with 30 participants in each group. Five cognitive domains- attention and concentration, verbal fluency, memory, visuospatial ability and executive functions were assessed. We assessed for endophenotype pattern of statistical significance in pairwise analyses of Kruskal-Wallis test, which was corrected for multiple comparisons. Subsequently, correlation analysis to assess association of cognitive impairment with socio-demographic and clinical variables was conducted.

RESULTS

Although impairment in attention and executive functions also was seen in patients with cannabis dependence, endophenotype pattern of statistical significance in pairwise analyses, with impairment in first-degree relatives too, was seen in all sub-scores of verbal fluency and verbal memory. None of the correlations were significant.

CONCLUSION

'Non-user' first-degree relatives of patients with cannabis dependence too show significant cognitive impairment. Verbal fluency and verbal memory are possible endophenotypes or trait markers for cannabis dependence syndrome.

Neuropsychiatric Manifestations of Tuberous Sclerosis and Management Options: A Narrative Review

Importance: Tuberous sclerosis is an autosomal dominant genetic disorder that affects multiple organ systems and causes a wide range of physical manifestations. It commonly involves the brain, skin, heart, eyes, kidneys, and lungs. Individuals mostly present with neuropsychiatric symptoms, comprising a noteworthy source of morbidity and mortality.

Observation: Ninety percent of individuals with tuberous sclerosis have associated neuropsychiatric manifestations including attention-deficit/hyperactivity disorder, autism spectrum disorder, and intellectual disability, which are typically underidentified and undertreated.

Conclusion and Relevance: Lack of specific guidelines for management add to the significant burden of care. An individualized, multifaceted perspective, with particular focus on cognitive and psychosocial comorbidities, is key for managing tuberous sclerosis.

Prim Care Companion CNS Disord 2024;26(1):22nr03481.

Author affiliations are listed at the end of this article.

Inflammatory Markers in Patients With Major Depressive Disorder: A Prospective, Clinic-Based, Cohort Study From India

Background Patients with major depressive disorder have varying response rates to treatment. Multiple factors such as non-adherence, comorbidity, chronic stressors, and biological factors may be responsible for this variation. Inflammatory (pro and anti) markers have been well studied as a cause for depression, predisposing factors, and a consequence of depression. Among these, interleukins (ILs), interferons, C-reactive protein (CRP), and tumor necrosis factor-alpha (TNF-α) have been studied repeatedly. We conducted a pilot study to assess the levels of these inflammatory markers in patients with major depressive disorder. The specific objectives of this study were to compare and correlate changes in pro- and anti-inflammatory markers throughout different phases of depression, including pretreatment and posttreatment periods, and to evaluate the pattern of pro- and anti-inflammatory markers in patients who experienced remission or showed a positive response to treatment. Methodology This was a prospective, clinic-based, cohort study done for a period of one and a half years. Patients aged 18-65 years with depressive disorder per the International Classification of Diseases Tenth Edition and who scored more than 7 on the Hamilton Depression Rating Scale were included in this study. A total of 81 patients were recruited who were followed up till eight weeks after inclusion. A total of 31 patients completed the eight weeks of follow-up. Levels of IL-10 and TNF-α were assessed at baseline, two weeks, four weeks, and eight weeks of follow-up. Results This study tried to compare the levels of pro- and anti-inflammatory markers across pretreatment and various posttreatment phases of depression. Results showed that the levels of pro-inflammatory cytokine TNF-α increased from baseline till eight weeks of follow-up, and levels of IL-10 decreased from baseline till eight weeks of follow-up. However, these changes were not statistically significant. Conclusions This study supports the hypothesis that inflammatory markers can be trait markers of depression rather than the consequence or result.

Post-COVID- 19 Mucormycosis: A Review

Background and Aims: After being affected by a severe second wave of COVID-19 with numerous cases and deaths, India is now facing new challenges due to the disease. One of these is the feared complication of rhino-orbital mucormycosis in post-infectious individuals. Case reports and research studies on this association are on the rise. Our goal is to conduct a comprehensive literature review to evaluate the distinctiveness of individuals with mucormycosis and COVID-19. Methods: A literature search was done on the following databases: PubMed, Google Scholar, and Cochrane Library using the following keywords like COVID 19, Mucormycosis, Mucor, Novel coronavirus, and SARS CoV-2, a systematic. Results: Studies have shown that history of diabetes mellitus and steroid treatments were the common possible factors for the increased post-covid-19 mucormycosis.  Hyperglycemia secondary to uncontrolled hyperglycemic states like DM and immunosuppression secondary to covid-19 infection, steroid use form a vicious cycle causing mucormycosis. Conclusion: Increased incidence of mucormycosis in India post-COVID infection appears to be due to a triad of diabetes, irrational steroid use, and COVID-19 itself. To decrease the frequency of deadly mucormycosis in patients with COVID-19, all attempts should be made to preserve optimal sugar levels in the body, and the use of corticosteroids should be restricted and should be given as per recommended by ICMR.

Repetitive transcranial magnetic stimulation and its role in suicidality - A systematic review

BACKGROUND

Repetitive transcranial magnetic stimulation (rTMS) as a brain stimulation modality is approved for the treatment of resistant depression and its efficacy in depression is also well supported in several studies. However, its effect on suicidality is still unclear, unlike electroconvulsive therapy.

METHODOLOGY

This paper provides a systematic review of the literature published till June 2021. Studies that used rTMS as either monotherapy or adjunctive treatment in patients with suicidality, irrespective of their diagnosis, were included. The Preferred Reporting Items for Systematic Reviews and Meta Analyses (PRISMA) guidelines was followed. A total of 20 studies (N = 1584) were included for the qualitative synthesis. The quality of studies was assessed using the Cochrane Risk of Bias tool for Randomised control trials (RCT) and the Newcastle-Ottawa Scale tool for Non-Randomised studies (NRS).

RESULTS

Of the 20 articles selected for qualitative synthesis, 11 were RCTs and 9 were NRS. The results are categorized in domains of type of the study, size of population, type of population, diagnosis, assessment scales, mode of rTMS, stimulus parameters, safety and efficacy.

CONCLUSIONS

The high frequency rTMS at left dorsolateral prefrontal cortex as an adjunct to antidepressant medication is promising in reducing suicidal behaviour in treatment resistant depression. However, role of TMS targeting other areas of stimulation in mitigating suicide risk in other disorders could not be established due to scarcity of such studies. The results should be interpreted cautiously as considerable risk of bias was present in the reviewed studies.

Exploratory Factor Analysis of Young's Internet Addiction Test Among Professionals from India: An Online Survey

BACKGROUND

Internet use has spread across the world due to easy accessibility and affordability. However, it has been creating many problems at several levels. So, there is a need to identify the suitability of psychometric properties and the factor structure of the widely used Internet Addiction Test (IAT) in the Indian settings. Our objective was to perform an exploratory factor analysis on the IAT and to test the reliability of the scale.

METHODS

It was a cross-sectional study that included various professional groups. We used an online questionnaire that included sociodemographic details and Young's IAT. Exploratory factor analysis was used to identify the factor structure of Young's IAT in the Indian setup.

RESULTS

The mean age of the sample (N = 1,782) was 27.7 years (SD = 8.74) with a predominantly male population 1040 (58.4%). In total, 1.0% (17) of the sample had significant problems with internet usage, whereas 13% (232) were in the range of frequent/occasional problems, and the mean score on IAT was 32 (SD = 16.42). Exploratory factor analysis revealed two factors that explained 49% of the variance (Kaiser-Meyer-Olkin measure of sampling adequacy: 0.95, Bartlett's test of sphericity: P = 0.000). They were "mood and relationship issues" and "duration and productivity." Cronbach's α was 0.92, which indicates a high level of internal consistency.

CONCLUSION

In Indian settings, IAT can be understood based on the two-factor structure. The scale has excellent reliability. Further studies are needed to replicate these results, by using confirmatory factor analysis and validity testing.

Deterrent Action of Acamprosate: A Case Report

BACKGROUND

Among the three pharmacological agents available for alcohol de-addiction, acamprosate and naltrexone are considered anti-craving agents. Among these two, acamprosate is better tolerated, has low abuse potential, and is safe in overdose. But the mechanism of action of acamprosate still remains unclear.

CASE REPORT

This case report gives a description of a 46-year-old male patient diagnosed with alcohol dependence syndrome with prior admissions and failed treatments with naltrexone and baclofen. He developed skin reaction after relapsing with alcohol use while receiving acamprosate therapy. The severity of the adverse effects varied with the amount of alcohol consumed by the patient. This suggests the possibility of deterrent-like action of acamprosate in our patient. The symptoms reduced after abstinence from alcohol and the patient was continued on acamprosate and relapse prevention therapy (RPT).

CONCLUSION

Clinicians should consider the possible deterrent effect of acamprosate and manage such patients accordingly.

Comorbidity of bipolar and anxiety disorders: An overview of trends in research

Over the last three decades burgeoning research has shown that anxiety disorder comorbidity is not only highly prevalent in bipolar disorder (BD), but it also adversely impacts the course, outcome, and treatment of BD. The present review provides an overview of the current trends in research on comorbid anxiety and BDs based on prior reviews and meta-analyses (n = 103), epidemiological surveys, and large-scale clinical studies. The results reiterated the fact that at least half of those with BD are likely to develop an anxiety disorder in their lifetimes and a third of them will manifest an anxiety disorder at any point of time. All types of anxiety disorders were equally common in BD. However, there was a wide variation in rates across different sources, with most of this discrepancy being accounted for by methodological differences between reports. Comorbid anxiety disorders negatively impacted the presentation and course of BD. This unfavourable clinical profile led to poorer outcome and functioning and impeded treatment of BD. Despite the extensive body of research there was paucity of data on aetiology and treatment of anxiety disorder comorbidity in BD. Nevertheless, the substantial burden and unique characteristics of this comorbidity has important clinical and research implications.

Factors responsible for delay in treatment seeking in patients with psychosis: A qualitative study

INTRODUCTION

Patients with psychosis often seek treatment at a later date after the onset of illness. There are a multitude of factors behind the treatment delay in these patients, reduction of this delay will help in better prognosis of these patients.

MATERIALS AND METHODS

A cross sectional study was conducted to understand the various reasons responsible for treatment delay in patients with psychosis. 25 subjects were selected by purposive sampling and their family members were interviewed. Qualitative analysis was carried out to identify various factors.

RESULTS

Reasons for treatment delay were at several levels like illness related, patient related, treatment related, family related factors. However the most common themes among these were unawareness of illness, explanatory models of illness, stigma, financial constraints. Other themes like relation of symptoms with premorbid personality, life events, absence of paternal support were also unfolded in the current study.

CONCLUSIONS

There is significant delay between onset of psychosis and treatment seeking. Several factors are responsible for treatment delay in patients with psychotic illness. However they vary depending upon the socio-cultural background of the patient and their family members. Hence the interventions devised towards reducing the delay should be individualised.