Publications by authors named "M Guichard"
Honeybees, Apis mellifera, have experienced the full impacts of globalisation, including the recent invasion by the parasitic mite Varroa destructor, now one of the main causes of colony losses worldwide. The strong selection pressure it exerts has led some colonies to develop defence strategies conferring some degree of resistance to the parasite. Assuming these traits are partly heritable, selective breeding of naturally resistant bees could be a sustainable strategy for fighting infestations.
View Article and Find Full Text PDFAbiraterone acetate (AbA) is a progesterone derivative indicated for the treatment of metastatic prostate cancer. This BCS (Biopharmaceutics Classification System) Class IV molecule has an extremely poor oral bioavailability (<10 %), notably due to its very low water solubility and intestinal permeability. Among the few existing galenic strategies to improve AbA's oral bioavailability, lipid nanoparticles such as Solid Lipid Nanoparticles (SLN) and Nanostructured Lipid Carriers (NLC) are relevant nanovectors.
View Article and Find Full Text PDFReal-world multidisciplinary outcomes of onasemnogene abeparvovec monotherapy in patients with spinal muscular atrophy type 1: experience of the French cohort in the first three years of treatment.
Orphanet J Rare Dis
September 2024
Article Synopsis
- Spinal muscular atrophy type 1 (SMA1) is a severe genetic disease affecting motor neurons, and onasemnogene abeparvovec gene transfer therapy (GT) has significantly impacted its treatment, although real-world data is limited.
- A study in France identified 95 SMA1 patients between June 2019 and June 2022, focusing on 29 who received GT and had over a year of follow-up.
- Results indicated positive motor development and maintenance of respiratory and feeding functions in treated infants, although many developed spinal deformities, and two patients sadly passed away shortly after treatment.
Article Synopsis
- The invasion of the Varroa destructor mite poses significant challenges for breeding mite-resistant honey bee colonies and has not significantly reduced colony mortality thus far.
- Low heritability estimates for mite infestation levels may explain the lack of genetic progress in developing resistant bee colonies.
- Research conducted in Bern, Switzerland showed that mite immigration between apiaries affects infestation levels, indicating that management practices in beekeeping significantly impact mite population dynamics.
Arabidopsis root is a classic model system in plant cell and molecular biology. The sensitivity of plant roots to local environmental perturbation challenges data reproducibility and incentivizes further optimization of imaging and phenotyping tools. Here we present RoPod, an easy-to-use toolkit for low-stress live time-lapse imaging of Arabidopsis roots.
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