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Bortezomib is a new chemotherapeutic agent approved for the treatment of relapsed/refractory and newly diagnosed multiple myeloma. One of the major side effects of bortezomib is a peripheral length-dependent sensory axonal neuropathy and, less frequently, a small fiber neuropathy. Autonomic symptoms like postural dizziness, syncope, diarrhoea, ileus, impotence and urinary disturbances have been reported, nevertheless, autonomic neuropathy has never been characterized. We describe by means of immunofluorescence, the involvement of autonomic skin nerve fibers in three patients with small fiber neuropathy induced by bortezomib treatment.
Dipartimento di Scienze Neurologiche, Università di Bologna, Via Ugo, Foscolo 7, 40123, Bologna, Italy, firstname.lastname@example.org.
This article was published in the following journal.
Small fiber neuropathy arises from injury of small C and Aδ fibers and leads to pruritus as well as positive (pain, burning, tingling or stinging sensation) and negative neurological (numbness) sympt...
To assess the sensitivity, specificity, and predictive value of pinprick perception and its concordance with established laboratory measures in small fiber neuropathy.
Chemotherapy-induced peripheral neurotoxicity (CIPN) is a common, potentially severe and dose-limiting adverse effect; however, it is poorly investigated at an early stage due to the lack of a simple ...
Amplitudes of Pain-Related Evoked Potentials Are Useful to Detect Small Fiber Involvement in Painful Mixed Fiber Neuropathies in Addition to Quantitative Sensory Testing - An Electrophysiological Study.
To investigate the usefulness of pain-related evoked potentials (PREP) elicited by electrical stimulation for the identification of small fiber involvement in patients with mixed fiber neuropathy (MFN...
Longer remissions and better overall survival rates can be achieved with the introduction of new, effective treatments and targeted therapies in the past 1-2 decades, however, the incidence of side ef...
Neuropathy is a common side effect of chemotherapeutics used for the treatment of multiple myeloma, including vincristine, thalidomide and bortezomib. The neuropathy induced by these drugs...
Neurological dysfunction is a common complication of late stage chronic kidney disease (CKD) and peripheral nerve system is often involved in such complication. Sensory disturbances such a...
This is a Phase II, 2 arm randomized crossover study. Subjects will be assigned to either active agent or placebo and then crossover to the other arm. This study is designed to evaluate ...
To address the following issues: (1) the course of small nerve fiber degeneration in type 2 diabetic patients, especially in asymptomatic patients; (2) the influence of blood sugar control...
Small fiber neuropathy (SFN) is the most common cause of neuropathic pain in peripheral neuropathies, with a prevalence of at least 53/100.000. Patients with SFN may have excruciating pain...
Peripheral, autonomic, and cranial nerve disorders that are associated with DIABETES MELLITUS. These conditions usually result from diabetic microvascular injury involving small blood vessels that supply nerves (VASA NERVORUM). Relatively common conditions which may be associated with diabetic neuropathy include third nerve palsy (see OCULOMOTOR NERVE DISEASES); MONONEUROPATHY; mononeuropathy multiplex; diabetic amyotrophy; a painful POLYNEUROPATHY; autonomic neuropathy; and thoracoabdominal neuropathy. (From Adams et al., Principles of Neurology, 6th ed, p1325)
The nervous system outside of the brain and spinal cord. The peripheral nervous system has autonomic and somatic divisions. The autonomic nervous system includes the enteric, parasympathetic, and sympathetic subdivisions. The somatic nervous system includes the cranial and spinal nerves and their ganglia and the peripheral sensory receptors.
A class of nerve fibers as defined by their structure, specifically the nerve sheath arrangement. The AXONS of the unmyelinated nerve fibers are small. The axons to SCHWANN CELLS ratio is greater in the unmyelinated nerve fibers than that in the myelinated fiber (NERVE FIBERS, MYELINATED) which is 1:1. Usually several axons are surrounded by a single Schwann cell in the unmyelinated nerve fibers. Therefore, each unmyelinated fiber is not completely covered by the MYELIN SHEATH formed by the Schwann cell. Unmyelinated nerve fibers conduct impulses at low velocities. They represent the majority of peripheral sensory and autonomic fibers. They are also found in the spinal cord and brain.
A TEXTILE fiber obtained from the pappus (outside the SEEDS) of cotton plant (GOSSYPIUM). Inhalation of cotton fiber dust over a prolonged period can result in BYSSINOSIS.
Ischemic injury to the OPTIC NERVE which usually affects the OPTIC DISK (optic neuropathy, anterior ischemic) and less frequently the retrobulbar portion of the nerve (optic neuropathy, posterior ischemic). The injury results from occlusion of arterial blood supply which may result from TEMPORAL ARTERITIS; ATHEROSCLEROSIS; COLLAGEN DISEASES; EMBOLISM; DIABETES MELLITUS; and other conditions. The disease primarily occurs in the sixth decade or later and presents with the sudden onset of painless and usually severe monocular visual loss. Anterior ischemic optic neuropathy also features optic disk edema with microhemorrhages. The optic disk appears normal in posterior ischemic optic neuropathy. (Glaser, Neuro-Ophthalmology, 2nd ed, p135)
Clostridium difficile (CDI)
A clostridium difficile infection (CDI) is a type of bacterial infection that can affect the digestive system. It most commonly affects people who are staying in hospital. The symptoms of CDI can range from mild to severe and include: diarrhoe...
Erectile dysfunction (ED or impotence) is the inability to get and maintain an erection that is sufficient for satisfactory sexual intercourse, and affects half of all men between the ages of 40 to 70. The causes of ED can be both physical and psycholo...