An updated AL-base reveals ranked enrichment of immunoglobulin light chain variable genes in AL amyloidosis.

Background: Each monoclonal antibody light chain associated with AL amyloidosis has a unique sequence. Defining how these sequences drive amyloid deposition could facilitate faster diagnosis and lead to new treatments.

Methods: Light chain sequences are collected in the AL-Base repository.

Accelerated protein retention expansion microscopy using microwave radiation.

Protein retention expansion microscopy (ExM) retains fluorescent signals in fixed tissue and isotropically expands the tissue to allow nanoscale (<70 nm) resolution on diffraction-limited confocal microscopes. Despite the numerous advantages of ExM, the protocol is time-consuming. Here, we adapted an ExM protocol to vibratome-sectioned brain tissue of Xenopus laevis tadpoles and implemented a microwave (M/W)-assisted protocol (ExM) to reduce the workflow from days to hours.

An updated AL-Base reveals ranked enrichment of immunoglobulin light chain variable genes in AL amyloidosis.

Background: Each monoclonal antibody light chain associated with AL amyloidosis has a unique sequence. Defining how these sequences lead to amyloid deposition could facilitate faster diagnosis and lead to new treatments.

Methods: Light chain sequences are collected in the Boston University AL-Base repository.

Accelerated protein retention expansion microscopy using microwave radiation.

Protein retention expansion microscopy (ExM) retains genetically encoded fluorescent proteins or antibody-conjugated fluorescent probes in fixed tissue and isotropically expands the tissue through a swellable polymer network to allow nanoscale (<70 nm) resolution on diffraction-limited confocal microscopes. Despite numerous advantages ExM brings to biological studies, the full protocol is time-consuming and can take multiple days to complete. Here, we adapted the ExM protocol to the vibratome-sectioned brain tissue of tadpoles and implemented a microwave-assisted protocol to reduce the workflow from days to hours.

Feasibility of paying people who use drugs cash to distribute naloxone within their networks.

Introduction: Immediate access to naloxone is needed to prevent fatal opioid-related overdoses in the presence of fentanyl analogs saturating the opioid supply. Peer models engage impacted populations who are not accessing naloxone through standard venues, yet compensating peers who utilize syringe service programs with cash stipends to distribute naloxone within networks of people who use drugs is not well described.

Methods: As part of the HEALing Communities Study, syringe service program-based interventions were developed in Holyoke and Gloucester, MA, which paid people who use drugs ("peers") cash to distribute naloxone.