Antidepressant Effects of Psilocybin in Unipolar Depression
Highlights from the International Society for Bipolar Disorders Conference Posters and Presentations, Chicago, June 22-25, 2023
Alan Young reported on 233 patients with treatment refractory depression who were given 10mg then 25mg of psilocybin, 1 week apart.
There was intensive therapeutic support before, during, and after the ingestions. Patients experienced it as a waking dream. Response was rapid in onset and 20% response persisted at least through week 12.
Metabolic Changes in Brain of Bipolar at Autopsy
Highlights from the International Society for Bipolar Disorders Conference Posters and Presentations, Chicago, June 22-25, 2023
Graeme Preston reported on the brain of autopsied bipolar patients having increases aspartate and citrulline, while those with unipolar depression had decreases in the TCA cycle.
He saw increases in acetyl carnitine in manic bipolar patients versus bipolar depressed patients, which is of interest in relationship to the putative antidepressant effects of acetyl-L-carnitine in animal models of depression and in humans.
Preliminary data on ketogenic diet
Highlights from the International Society for Bipolar Disorders Conference Posters and Presentations, Chicago, June 22-25, 2023
Georgia Ede gave a talk on the first results of 12 bipolar patients using a ketogenic diet (composed of 75% fat; 5% carbohydrates; 20% protein) as a adjunct to about 5 medications that were insufficiently effective. She saw improvement by week 3, 58% remitted, and some lost weight. She indicated that some could revert to a regular diet after the improvement achieved by children, but not in adults.
Sebari Sethi talked about 26 of 27 bipolar patients who achieved 1.3 mmole/L ketones and lost weight and showed increases in glutamate in brain measured by Glx and decreases of 11.2% in the ACC
The Need for Psychotherapy for Bipolar Disorder
Highlights from the International Society for Bipolar Disorders Conference Posters and Presentations, Chicago, June 22-25, 2023
Greg Murray gave a talk on effectiveness of multiple types of psychotherapy for bipolar disorder and suggests that the choice be designed for each individual.
He describes 10 core elements of each type of therapy. These included dealing with:
- 1. Knowledge, acceptance, and adherence
- 2. The presence of anxiety in some 90% of patients
- 3. Suicidality and crisis management
- 4. Skills: monitoring, relapse prevention, life time events, recognition of early symptoms
- 5. Identity, cognitive restructuring, dealing with stigma, train action and achievement, confronting perfectionism, CBT
- 6. Sleep and circadian rhythms
- 7. Trauma, child adversity, PTSD
- 8. Emotion regulation
- 9. Relationships: social, family, occupational roles (family or group)
- 10. Substance use and avoidance, access, motivational interviewing, impulsivity
Pediatric Bipolar Disorder is Associated with Neurocognitive Deficits
Highlights from the International Society for Bipolar Disorders Conference Posters and Presentations, Chicago, June 22-25, 2023
Maria Paula Maziero of The University of Texas Health Science Center At Houston reported that while euthymic youths with BD (bipolar disorder) exhibited significant dysfunction in working memory (WM), verbal learning, and memory domains, fluctuation between the mood states affected the type of cognitive dysfunction. They concluded: “Pediatric bipolar disorder patients have marked cognitive dysfunction involving multiple domains, especially executive measures. The severity of mood symptoms influences cognitive performance, but even euthymic persons perform lower than matched controls.“
Childhood Bullying and Maltreatment Yield A Worse Course of Bipolar Illness
Highlights from the International Society for Bipolar Disorders Conference Posters and Presentations, Chicago, June 22-25, 2023
Georgina Hosang of Bart’s & The London, Queen Mary’s School of Medicine reported that bullying and maltreatment together were associated with more suicidal behaviors than either childhood experience alone.
Positive Effects of Low-Dose Lithium (LDL)
Highlights from the International Society for Bipolar Disorders Conference Posters and Presentations, Chicago, June 22-25, 2023
Rebecca Strawbridge of the Institute of Psychiatry, Psychology & Neuroscience, King’s College London reported on 18 articles that were examined and grouped according to outcome domain (cognition, depression, mania, and related constructs e.g., suicidality). Significant benefits (versus placebo) were identified for attenuating cognitive decline, and potentially as an adjunctive therapy for people with depression/mania. Across studies, LDL (~serum level ?0.6 mmol/L) was reported to be safe.
Lumateperone for Bipolar I or Bipolar II Depression: Few Extrapyramidal and Motor Symptoms
Highlights from the International Society for Bipolar Disorders Conference Posters and Presentations, Chicago, June 22-25, 2023
Tobie Escher of Intra-Cellular Therapies, Inc. reported on the excellent tolerability of lumateperone (42mg/day) in a “short-term population comprised 746 patients in pooled monotherapy trials (placebo, 374; lumateperone, 372) and 352 patients in the adjunctive study (adjunctive placebo, 175; adjunctive lumateperone, 177). Reported EPS [extrapyramidal symptom]-related TEAEs [treatment-emergent adverse events] were 1 patient (0.3%) with mild dyskinesia (lumateperone monotherapy), 1 (0.6%) with mild akathisia (adjunctive lumateperone), and 1 (0.3%) with severe akathisia (placebo monotherapy).”
Patterns of Pharmacotherapy for Bipolar Disorder
Highlights from the International Society for Bipolar Disorders Conference Posters and Presentations, Chicago, June 22-25, 2023
Balwinder Singh of the Mayo Clinic College of Medicine reported on “10,351 individuals from North America (n=3,985), Europe (n=3,822), and Australia (n=2,544), predominantly with cross-sectional data (80%)….They found that “Cross-sectionally, mood-stabilizing anticonvulsants (44%), second-generation antipsychotics (42%), and antidepressants (38%) were most prescribed. Lithium was prescribed in 29% of patients, primarily in Australian (31%) and European (36%) cohorts.” Lithium is remarkedly underutilized in North American cohorts.
Both Obesity and Bipolar Disorders in 2249 Individuals Show White Matter Microstructure Abnormalities
Lorielle Dietze of Dalhousie University “obtained body mass index (BMI) and diffusion tensor imaging derived fractional anisotropy (FA) values from 930 individuals with bipolar disorders (BD), and 1319 control individuals from 20 cohorts in the ENIGMA-BD Working Group.”
They “found that lower FA was associated with both BD and BMI, in five white matter tracts, including the corpus callosum and thalamic radiation. Nine ROIs were correlated with only BD, while higher BMI was uniquely correlated with lower FA in four white matter ROIs.”
They concluded: “For the first time we showed that both obesity and BD demonstrated lower FA in some of the same regions. The impact of obesity may be greater in some tracts in BD individuals.”
