Research

Kinderlehrer DA. Anorexia Nervosa Caused by Polymicrobial Tick-Borne Infections: A Case Study. Int Med Case Rep J. 2021;14:279-287
https://doi.org/10.2147/IMCRJ.S311516

“Conclusion: There is increasing support for the role of infections in the genesis of AN in some patients. The data suggest that autoimmunity is playing a prominent role in the pathogenesis of microbial-induced AN, and that role has been elucidated in children and adolescents with PANS. This is the first documented case of Lyme borreliosis complicated by three co-infections triggering AN. This adds to the existing literature that infections can play a more prominent role in AN. The corollary is that physicians should become aware of this association in the evaluation of patients with AN, as it may provide a treatment option for this serious and sometimes fatal condition. The possibility that tick-borne infections could underlie the diagnosis of AN warrants further study.”

El Tawil, Chady. (2022). Can PANDAS Swear? A Curious Case of Coprolalia in a 15 Year Old Girl presenting to the Emergency Department. 10.52544/2642-7184(X)XXXX.

Abstract: Pediatric autoimmune neuropsychiatric disorders associated with Streptococcal infections, or PANDAS, is a diagnosis of children with an acute and fast onset of obsessions, compulsions or tics succeeding a Group A beta-hemolytic streptococcal infection. Coprolalia is a form of tics where the patient involuntarily says obscene and inappropriate words. We report a case of a 15-year old girl with a history of suspected PANDAS presenting to the emergency department with recurrent coprolalia without signs of a streptococcus infection. PANDAS and other neuropsychiatric syndromes can have different acute presentations. The ED physicians should be familiar with such disorders and presentations

Navin Prasad, Stephanie Y. Johng, Daniel Powell, Matthew Williams, Elizabeth Latimer, Earl H. Harley, Role of tonsillectomy and adenoidectomy in parental satisfaction of treatments for PANDAS, American Journal of Otolaryngology, 2021, 102963, ISSN 0196-0709, DOI: 10.1016/j.amjoto.2021.102963.

“Caregivers reported a decreasing frequency of symptoms over time regardless of treatment and had no difference in satisfaction. T&A was the most preferred treatment and the most impactful on symptoms for surgical patients. Given the challenges of immunologic therapies, T&A in combination with antibiotics should be considered as an early intervention for PANDAS.”

Irina A. Vanzhula, Shruti S. Kinkel-Ram, Cheri A. Levinson. Perfectionism and Difficulty Controlling Thoughts Bridge Eating Disorder and Obsessive-Compulsive Disorder Symptoms: A Network Analysis. Journal of Affective Disorders. Volume 283, 2021,p 302-309, DOI: 10.1016/j.jad.2021.01.083.

Highlights

• Difficulties controlling intrusive thoughts is a common symptom between eating disorders and OCD
• Perfectionism symptoms bridge eating disorders and OCD
• Restriction links to checking compulsions and rigidity
• Binge eating links to hoarding symptoms

Conclusions
The presence of intrusive cognitions and maladaptive perfectionism may contribute to the maintenance of co-occurring ED and OCD symptoms. These findings begin to delineate specific pathways among OCD and ED symptoms, which can be used in the development of interventions to disrupt connections among these disorders.

Margo Thienemann, Michelle Park, Avis Chan, Jennifer Frankovich. Patients with abrupt early-onset OCD due to PANS tolerate lower doses of antidepressants and antipsychotics. Journal of Psychiatric Research, Vol 135, 2021, PP 270-278. DOI: 10.1016/j.jpsychires.2021.01.022.

• More than half of patients with PANS require psychotropic medication.
• Side effects requiring a therapy change are common.
• Drug doses at which side effects occur are usually less than recommended.
• Clinicians should start with lower doses of psychotropics in PANS patients.

“Antidepressants’ most common side effects were anxiety, agitation, aggression, and akathisia. Antipsychotics’ most common side effects were dystonia, aggression, self-injurious behavior, and movement abnormality. Side effects were common at doses lower than the suggested starting doses for these medications. Patients tolerated antidepressants and antipsychotics when doses were low.”

Tetracyclines for COVID-19 Neurological and Neuropsychiatric Manifestations to treat Neuroinflammation

Highlights

• Neuropsychiatric symptoms were reported during COVID-19.
• Coronaviruses have neuroinvasive potential and induce a potent neuroinflammatory response.
• Tetracyclines can counteract neuroinflammation caused by neurotrophic viruses.
• Tetracyclines interact with viral proteins presenting antiviral effects.
• Tetracyclines represent a potential treatment for COVID-19 neuropsychiatric symptoms.

Chaves Filho, A.J.M., Gonçalves, F., Mottin, M. et al. Repurposing of Tetracyclines for COVID-19 Neurological and Neuropsychiatric Manifestations: A Valid Option to Control SARS-CoV-2-Associated Neuroinflammation?. J Neuroimmune Pharmacol (2021). https://doi.org/10.1007/s11481-021-09986-3

Cross Amy, Bouboulis Denis, Shimasaki Craig, Jones Charles Ray. Case Report: PANDAS and Persistent Lyme Disease With Neuropsychiatric Symptoms: Treatment, Resolution, and Recovery. Frontiers in Psychiatry. Vol 12, 2021. DOI:10.3389/fpsyt.2021.505941  

The subject of this case report had a concomitant diagnosis of Lyme borreliosis and PANDAS, both of which are consistent with the neuropsychiatric symptoms she experienced. As evidenced by her recovery and resolution of symptoms, treating both the Lyme infection and streptococcal infection, as well as treating the underlying autoimmune etiology of her neuropsychiatric symptoms resulted in a successful outcome. This case report and treatment history reiterates the complex and challenging nature of infection-triggered autoimmune neuropsychiatric disorders such as PANDAS and PANS and that multiple concomitant infectious agents can frequently be identified in patients suffering from these complex neuropsychiatric disorders. The presence of elevated antineuronal antibodies identified by the Cunningham Panel™ provided an aid in the diagnosis and in directing immunomodulatory treatment. The post-treatment resolution of these autoantibodies provided pathophysiological support for addressing both the infection(s) and the underlying immune system dysfunction which resulted in a positive medical outcome for this patient.

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Badenoch, J., Searle, T., Watson, I. et al. Tics in patients with encephalitis. Neurol Sci (2021). DOI: 10.1007/s10072-021-05065-w

“Tics were most commonly reported in the post-encephalitic period and involvement of the basal ganglia was frequently observed….Despite these limitations, the first literature review evaluating the presence of tics in reported cases of encephalitis showed that tics have been sporadically reported in cases of encephalitis resulting from autoimmune, infective, and unknown aetiology. Specifically, tics have been more commonly reported in the post-encephalitic period and involvement of the basal ganglia was frequently found. Furthermore, the association of new-onset tics and encephalitis, in the background of other neuropsychiatric abnormalities, has clinical implications in potentially improving the detection of encephalitis based on clinical features. Future research should focus on the categorisation and treatment of hyperkinetic movement disorders associated with encephalitis.”