Autoimmune encephalitis with coexistent LGI1 and GABABR1 antibodies: case report

Background Autoimmune encephalitis (AE) with multiple auto-antibodies is of great clinical significance because its complex clinical manifestations and atypical imaging increase the difficulty of diagnosis, differential diagnosis and treatment, which may aggravate the disease, increase the recurrence rate and mortality. The coexistence of anti-Leucinie-rich Glioma Inactivated 1 (LGI1) and anti-γ-aminobutyric acid-beta-receptor 1 (GABABR1) has not been published before. Case presentation We herein present the case of a 60-year-old man with slow response, behavioral changes, psychosis and sleep disorders. Laboratory test included serum hyponatremia, positive serum LGI1 and GABABR1 antibodies using transfected cell-based assays. Electroencephalogram exhibited moderate diffusion abnormality. The patient responded well to steroid impulse treatment and sodium supplement therapy, and did not recur during the follow-up. Conclusions Here we report the first AE characterized by positive LGI1 and GABABR1 antibodies, as well as summarizing AE with multiple auto-antibodies reported so far, hopefully to provide experience for clinical practice.

Autoimmune encephalitis with antibodies against Leucinie-rich Glioma Inactivated 1 and γ-aminobutyric acid-beta-receptor: case report and literature review

A 60-year-old man presented with slow response and psychosis. Apart from hyponatremia, serum test also showed positive anti-Leucinie-rich Glioma Inactivated 1 (anti-LGI1) and anti-γ-aminobutyric acid-beta-receptor (anti-GABABR), and electroencephalogram exhibited moderate diffusion abnormality. The patient responded well to steroid treatment. Here we report the first autoimmune encephalitis(AE) characterized by positive anti-LGI1 and anti-GABABR, as well as summarizing AE with multiple auto-antibodies reported so far, hopefully to provide experience for clinical practice.

Brownian dynamics assessment of enhanced diffusion exhibited by ‘fluctuating-dumbbell enzymes’

Numerical simulations show moderate diffusion enhancements for fluctuating-dumbbell enzyme models.