Publications by authors named "Angelica Willis"
Importance: Fetal ultrasonography is essential for confirmation of gestational age (GA), and accurate GA assessment is important for providing appropriate care throughout pregnancy and for identifying complications, including fetal growth disorders. Derivation of GA from manual fetal biometry measurements (ie, head, abdomen, and femur) is operator dependent and time-consuming.
Objective: To develop artificial intelligence (AI) models to estimate GA with higher accuracy and reliability, leveraging standard biometry images and fly-to ultrasonography videos.
Background: Fetal ultrasound is an important component of antenatal care, but shortage of adequately trained healthcare workers has limited its adoption in low-to-middle-income countries. This study investigated the use of artificial intelligence for fetal ultrasound in under-resourced settings.
Methods: Blind sweep ultrasounds, consisting of six freehand ultrasound sweeps, were collected by sonographers in the USA and Zambia, and novice operators in Zambia.
VACM-1/CUL5 is a member of the cullin family of proteins involved in the E3 ligase-dependent degradation of diverse proteins that regulate cellular proliferation. The ability of VACM-1/CUL5 to inhibit cellular growth is affected by its posttranslational modifications and its localization to the nucleus. Since the mechanism of VACM-1/CUL5 translocation to the nucleus is not clear, the goal of this project was to determine the role that the putative nuclear localization signal (NLS) we identified in the VACM-1/CUL5 (PKLKRQ) plays in the cellular localization of VACM-1/CUL5 and its effect on cellular growth.
View Article and Find Full Text PDFVACM-1, a cul-5 gene product, functions via an E3 ligase complex and when overexpressed, has an antiproliferative effect in many cell types. Overexpression of VACM-/cul5 cDNA mutated at the PKA-specific phosphorylation site at Ser730 reversed this phenotype. These effects are associated with the appearance of larger M(r) species subsequently identified as a Nedd8-modified VACM-1/cul5.
View Article and Find Full Text PDFArticle Synopsis
- Mycobacteriophages are a type of virus that specifically infect mycobacterial hosts, such as Mycobacterium smegmatis and Mycobacterium tuberculosis, and are characterized by their diverse genetic makeup.
- Recent research isolated and sequenced 18 new mycobacteriophages from different locations in the U.S., adding to the understanding of phage diversity and mobile elements in viral evolution.
- The study also emphasizes the educational aspect, showing how freshman college students can engage in real research by isolating and analyzing these bacteriophages.