MRC Centre for Developmental and Biomedical Genetics, University of Sheffield, Sheffield, UK.
Published: April 2012
AI Article Synopsis
Article Abstract
The developing limb is one of the first systems where it was proposed that a signalling gradient is involved in pattern formation. This gradient for specifying positional information across the antero-posterior axis is based on Sonic hedgehog signalling from the polarizing region. Recent evidence suggests that Sonic hedgehog signalling also specifies positional information across the antero-posterior axis by a timing mechanism acting in parallel with graded signalling. The progress zone model for specifying proximo-distal pattern, involving timing to provide cells with positional information, continues to be challenged, and there is further evidence that graded signalling by retinoic acid specifies the proximal part of the limb. Other recent papers present the first evidence that gradients of signalling by Wnt5a and FGFs govern cell behaviour involved in outgrowth and morphogenesis of the developing limb.
Upper limb disabilities, if not managed, controlled and treated, significantly affect the physical and mental condition, daily activities and quality of life. Registries can help control and manage and even treat these disabilities by collecting clinical-management data of upper limb disabilities. Therefore, the aim of this study is to design, develop and evaluate a registry system for upper limb disabilities in terms of usability.
Background: The escalating demographic shift towards an aging population and the widespread occurrence of immunological diseases have contributed to an elevation in the frequency of community-acquired infections. Notably, among these infections, community-acquired bloodstream infections (CABSI) stand out due to their significant lethality. Detailed medical history inquiries, assessment of underlying immune status, detection of the source of infection, and initial precise identification and treatment of the infectious agents can improve the prognosis of CABSI.
Background: The shoulder girdle and proximal humerus are common sites for neoplastic lesions be it benign or malignant. We aimed to evaluate the outcomes of a frugal method of reconstruction of the proximal humerus for neoplastic lesions at short to medium term follow-up.
Methods: Data for this retrospective case series was collected from an electronic data base held at the primary authors institution.
Background: Little is known about the dermatologic manifestations of multisystem inflammatory syndrome in children (MIS-C) in children and adolescents.
Objective: We sought to describe the demographic background, key clinical features, and the clinical consequences of developing rash manifestations in MIS-C patients at Texas Children's Hospital.
Methods: Descriptive retrospective cohort study of 290 hospitalized eligible patients between May 2020 and April 2022.
