Use of dried blood spots for monitoring inflammatory and nutritional biomarkers in the elderly.

Objectives: Blood microsampling, particularly dried blood spots (DBSs), is an attractive minimally-invasive approach that is well suited for home sampling and predictive medicine associated with longitudinal follow-up of the elderly. However, diagnostic quantification of biomarkers from DBS poses a major challenge. Clinical mass spectrometry can reliably quantify blood proteins in various research projects.

Effect of the incorporation of pregelatinized cassava starch on the physicochemical, textural, and acoustic characteristics of baked snacks.

Almost all the dehydrated cassava puree is pregelatinized cassava starch (PCS). Its potential application in food would add variety. But food characteristics vary depending on the raw materials used.

New Perspectives of Multiplex Mass Spectrometry Blood Protein Quantification on Microsamples in Biological Monitoring of Elderly Patients.

Blood microsampling combined with large panels of clinically relevant tests are of major interest for the development of home sampling and predictive medicine. The aim of the study was to demonstrate the practicality and medical utility of microsamples quantification using mass spectrometry (MS) in a clinical setting by comparing two types of microsamples for multiplex MS protein detection. In a clinical trial based on elderly population, we compared 2 µL of plasma to dried blood spot (DBS) with a clinical quantitative multiplex MS approach.

Serum neurofilament light chain cut-off definition for clinical diagnosis and prognosis of amyotrophic lateral sclerosis.

Background: The neurofilament light chain (NfL) assay is gradually becoming an essential diagnostic tool for the diagnosis of many neurological diseases including amyotrophic lateral sclerosis (ALS). Different methods for the determination of this biomarker in serum have been developed in recent years.

Methods: We measured blood NfL in 429 patients referred to the tertiary ALS center of Montpellier, France using two different ultrasensitive methods (Ella™ and Simoa™) and we compared the clinical performances of these two approaches.

The IgH -MAR regions promote UNG-dependent error-prone repair to optimize somatic hypermutation.

Intoduction: Two scaffold/matrix attachment regions (5'- and 3'- ) flank the intronic core enhancer (c) within the immunoglobulin heavy chain locus (). Besides their conservation in mice and humans, the physiological role of is still unclear and their involvement in somatic hypermutation (SHM) has never been deeply evaluated.

Methods: Our study analyzed SHM and its transcriptional control in a mouse model devoid of , further combined to relevant models deficient for base excision repair and mismatch repair.