The Orthostatic Discriminant and Severity Scale (ODSS): an assessment of orthostatic intolerance

Clinical Autonomic Research - To assess the ability of the Orthostatic Discriminant and Severity Scale (ODSS) to distinguish symptoms of orthostatic intolerance from non-orthostatic symptoms....     

A case of autonomic failure in post-craniectomy syndrome of the trephined

Clinical Autonomic Research -     

Neurogenic orthostatic hypotension induced by tizanidine

Clinical Autonomic Research -     

Response to: Human papillomavirus (HPV) vaccine safety concerning POTS,CRPS and related conditions

Clinical Autonomic Research -     

Autonomic dysfunction and phenoconversion in idiopathic REM sleep behavior disorder

Clinical Autonomic Research - REM sleep behavior disorder (RBD) is a common finding among patients with synucleinopathies. We aimed to determine the degree of autonomic dysfunction in patients...     

Dysautonomia in early Parkinson disease: a window into the determinants of functional disability and an opportunity for early intervention

Clinical Autonomic Research -     

Structure and Function of the Armored Keel in Piranhas,Pacus, and their Allies

The serrasalmids: piranhas, pacus, and their relatives, are ubiquitous Neotropical fishes with diverse diets, ecologies, and behaviors. Serrasalmids have a bony, serrated keel which lines the underbellies of these fishes, the structure for which the family is named. We examined the diversity and structure of the keel in piranhas and allies using micro-computed tomography scanning in over 30 species of serrasalmids, a third of the species richness for the family, and for 95 total characiform specimens. The keel is highly diverse across serrasalmids, with serrae shape dictating the overall form of the keel. Serrae shape varies considerably among different species and even within keels themselves. The keel morphology can be divided into distinct anterior and posterior regions, as separated by the pelvic fins. Compared to other characiform fishes, serrasalmid skeletons are frequently damaged. Gouging perforations and signs of healing (serrae fusion) are common on the keel. We propose the keel is a defensive structure based on the high incidence of injury (>50%) in our dataset. This is the highest incidence of damage ever recorded in the skeletons of bony fishes. The loss of the anterior keel region in rheophilic taxa suggests competing performance demands and selective pressures on this structure. Competition and aggression among conspecifics or confamilials is a frequently invoked phenomenon for explaining animal weaponry and armor in terrestrial vertebrates. The keel in serrasalmids and other instances of armor in fishes could be complementary study systems for examining competitive rivalry in vertebrates. Anat Rec, 2018. © 2018 American Association for Anatomy.     

Myosin-XVa Controls Both Staircase Architecture and Diameter Gradation of Stereocilia Rows in the Auditory Hair Cell Bundles

Journal of the Association for Research in Otolaryngology - Mammalian hair cells develop their mechanosensory bundles through consecutive phases of stereocilia elongation, thickening, and...