Publications by authors named "R C Kahn"

Background: Accurate diagnosis of bipolar disorder (BPD) is difficult in clinical practice, with an average delay between symptom onset and diagnosis of about 7 years. A depressive episode often precedes the first manic episode, making it difficult to distinguish BPD from unipolar major depressive disorder (MDD).

Aims: We use genome-wide association analyses (GWAS) to identify differential genetic factors and to develop predictors based on polygenic risk scores (PRS) that may aid early differential diagnosis.

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Background: Streptococcus pneumoniae is an important cause of pneumonia, sepsis, and meningitis, which are leading causes of child mortality. Pneumococcal conjugate vaccines (PCVs) protect against disease and nasopharyngeal colonization with vaccine serotypes, reducing transmission to and among unvaccinated individuals. Mozambique introduced 10-valent PCV (PCV10) in 2013.

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Objectives: Women with germline BRCA1/2 pathogenic variants (gBRCA1/2) are recommended to undergo annual breast MRI and mammography. Our objective was to describe the frequency of insurance denials for annual breast MRIs in women with gBRCA1/2 and determine denial trends.

Methods: Women with gBRCA1/2 following in a high-risk breast cancer clinic with breast MRIs ordered from 2020 to 2021 were identified and cross-referenced with a database of insurance denials.

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Antibody-based research applications are critical for biological discovery. Yet there are no industry standards for comparing the performance of antibodies in various applications. We describe a knockout cell line-based antibody characterization platform, developed and approved jointly by industry and academic researchers, that enables the systematic comparison of antibody performance in western blot, immunoprecipitation and immunofluorescence.

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Article Synopsis
  • - The study evaluated the long-term safety, tolerability, and effect of olanzapine/samidorphan (OLZ/SAM) in patients with schizophrenia, schizophreniform disorder, or bipolar I disorder for up to 4 years, following the ENLIGHTEN clinical program.
  • - Out of 524 enrolled patients, the majority had schizophrenia, and common adverse effects included weight gain, headache, and anxiety, with minimal changes in metabolic parameters over the treatment duration.
  • - The treatment showed stable scores on the Clinical Global Impressions-Severity scale, indicating maintained symptom control and a long-term safety profile consistent with previous studies.
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