Depriving homing pigeons of olfactory information by applying a local anaesthetic, gingicain, to their olfactory epithelium results in systemic effects. Furthermore, anosmia persists reliably for only an hour. In contrast, intra-nasal irrigation with 18 % zinc sulphate solution results in anosmia that persists for at least 5 days. No systemic effects of zinc sulphate on anosmic pigeons could be...

Kallmann syndrome (KS) combines hypogonadotropic hypogonadism and anosmia. Anosmia is related to the absence or hypoplasia of the olfactory bulbs and tracts. Hypogonadism is due to gonadotropin-releasing hormone (GnRH) deficiency, which presumably results from a failure of the embryonic migration of neuroendocrine GnRH cells from the olfactory epithelium to the forebrain. This failure could be ...

Anosmia following head trauma is relatively common and in many cases is persistent and irreversible. The ability to objectively measure such a decline in smelling, for both clinical and medicolegal goals, is very important. The aim of this study was to find results of brain Single Photon Emission Computed Tomography (SPECT) in anosmic subjects after closed head trauma. This case-control cross s...

Hypogonadotropic hypogonadism (HH) is a clinically and genetically heterogeneous condition that can be associated with several additional clinical features such as anosmia, cleft palate, and hearing loss [1]. HH with anosmia is referred to as Kallmann syndrome (KS). More than 20 genes are known to underlie HH and/or KS, although mutations in these genes account for only a minor portion of the e...

Abstract Objective The novel coronavirus disease 2019 (COVID-19) infection was declared as a pandemic by the World Health Organization on March 11, 2020. Although complaint of anosmia is well described in adult patients, there limited knowledge pediatric patients. We aim to evaluate epidemiological characteristics and clinical findings children with COVID-19-positive Methods Patients diagnosed ...