Is deformity correction essential in a “Myelopathic Cord”? – A case series
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Pathogenesis of aquatic bird bornavirus 1 in turkeys of different age
Aquatic bird bornavirus 1 (ABBV1), an orthobornavirus in the family Bornaviridae, displays a broad host range among avian species, including poultry. The pathogenesis of orthobornaviruses, at least in mammals and psittacines, appears to be mediated by the host immune response against the infected nervous tissue, with younger animals showing a milder disease due to immune tolerance. Here, we tested the ability of ABBV1 to infect domestic turkeys (Meleagris gallopavo), with a focus on evaluating the impact of age at infection. Cohorts of 6-week-old (old) and day-old (young) male turkeys were divided into virus-inoculated and control groups, and kept for up to 12 weeks. Results showed that turkeys of both ages were susceptible to ABBV1 infection by intramuscular administration, following a centripetal and limited centrifugal spread, although infection appeared delayed in old compared to young birds. Notably, only young turkeys developed clinical signs and more frequent inflammation of the central nervous system, indicating that infection at a very early age is unlikely to induce tolerance to ABBV1 infection.
Clinical practice recommendations for the diagnosis and management of X-linked hypophosphataemia
X-linked hypophosphataemia (XLH) is a rare metabolic bone disorder caused by pathogenic variants in the PHEX gene, which is predominantly expressed in osteoblasts, osteocytes and odontoblasts. XLH is characterized by increased synthesis of the bone-derived phosphaturic hormone fibroblast growth factor 23 (FGF23), which results in renal phosphate wasting with consecutive hypophosphataemia, rickets, osteomalacia, disproportionate short stature, oral manifestations, pseudofractures, craniosynostosis, enthesopathies and osteoarthritis. Patients with XLH should be provided with multidisciplinary care organized by a metabolic bone expert. Historically, these patients were treated with frequent doses of oral phosphate supplements and active vitamin D, which was of limited efficiency and associated with adverse effects. However, the management of XLH has evolved in the past few years owing to the availability of burosumab, a fully humanized monoclonal antibody that neutralizes circulating FGF23. Here, we provide updated clinical practice recommendations for the diagnosis and management of XLH to improve outcomes and quality of life in these patients.
The clinical evolution of patients with idiopathic spinal cord herniation: a case series
Retrospective case series of 48 patients.
Is neck pain a marker for something serious? Like myelopathy
Degenerative Cervical Myelopathy (DCM) is a chronic progressive condition of the cervical spine that leads to compression of the spinal cord. It is the most common cause of spinal cord dysfunction in adults, and it occurs due to age-related changes or genetically associated pathologies. DCM is a clinical and radiological diagnosis and presents with a spectrum of symptoms ranging from neck pain and stiffness to paralysis. While neck pain is prevalent amongst patients attending specialist clinics, its predictive value for DCM is limited. This paper focuses on elucidating the relationship between DCM and chronic neck pain, and we discuss the underlying aetiology and broader neurological implications in the context of the literature. The progression of DCM can be slow and insidious with symptoms worsening gradually over time. Neck pain should not be discounted in the evaluation of DCM.
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