Biochemical studies of serotonin metabolism and a therapeutic trial of L-5-hydroxytryptophan (L-5-HTP) in combination with carbidopa were carried out in 19 patients with myoclonus. In 6 patients with intention myoclonus, the cerebrospinal fluid concentration of 5-hydroxyindoleacetic acid, a
The presence of rare paraneoplastic syndromes, the opsoclonus-myoclonus-ataxia syndrome (OMA), presumably caused by antineuronal antibody production, and diarrhea, caused by vasoactive intestinal peptide (VIP) secreted by neuroblastoma, may strongly signal the presence of neuroblastoma. The authors
We report a 47-year-old alcoholic man with alcoholic pellagra encephalopathy (APE) showing myoclonus and ataxia as chief complaints. He had been a heavy drinker for 30 years. He had noticed appetite loss and subsequently showed a subacutely progressive gait disturbance. He had no history of
A 13-year-old girl with Satoyoshi's syndrome is described. The disease manifested itself with generalized cramps, myoclonus, alopecia, diarrhea, growth retardation, muscular hypertrophies, bone malformations, and uterine and gonadal aplasia in the presence of normally developed breasts.
With more and more disease genes being mapped and/or cloned, there is a growing interest in dating the age of underlying mutations. The knowledge of the age of mutation is important to finely map disease genes by linkage disequilibrium mapping. It would also help us understand the origin, evolution,
This is the case of 63-year-old mother and her 35-year-old daughter who drank herbal juice (Rhizoma Dioscoreae Nipponicae and Ficus formosana Maxim) and then developed diarrhea, cold sweating, and myoclonus. On physical examination, the mother had a normal consciousness level, a normal respiratory
The selective pharmacology of the selective serotonin reuptake inhibitors (SSRIs) results in a lower potential for pharmacodynamic drug interactions relative to other antidepressants such as the tricyclic antidepressants (TCAs) and monoamine oxidase inhibitors (MAOIs). However, the SSRIs have been
Serotonin syndrome, a condition with numerous clinical neurological manifestations, is the result of central serotonergic hyperstimulation. Features of the syndrome include mental status and behavioral changes (agitation, excitement, hypomania, obtundation), motor system involvement (myoclonus,
OBJECTIVE
To report the case of a patient with serotonin syndrome induced by low-dose venlafaxine.
METHODS
A 29-year-old Taiwanese woman with major depressive disorder abruptly developed serotonin syndrome during low-dose (37.5 mg/d) venlafaxine monotherapy, with symptoms of restlessness, tremor,
In animals the occurrence of a behavioural syndrome consisting of hyperactivity, stereotyped movements and increase of temperature has been induced by MAOIs, 5-HT precursors (L-tryptophan) and 5-HT reuptake inhibitors. Most of these manifestations were specifically blocked by a pretreatment with an
OBJECTIVE
To report a case of a neurotoxic syndrome in a patient undergoing concomitant treatment with risperidone and fluvoxamine.
METHODS
A 24-year-old African American woman hospitalized for psychosis was unresponsive to risperidone. Because of obsessive symptoms, low doses of fluvoxamine were
Following vaccination for distemper, using a modified live-virus vaccine developed for dogs, 2 young kinkajous (Potos flavus) developed diarrhea, then central nervous system disease. Clinical signs included myoclonus, head trembling, loss of muscular coordination, and convulsions. One kinkajou
OBJECTIVE
Intrathecal (IT) drug delivery systems for patients with chronic non-malignant pain are intended to improve pain and quality of life and reduce side effects of systemic use. A subset of patients may have escalating pain, functional decline, and/or intolerable side effects even as IT opioid
BACKGROUND
Clinical presentations of paraneoplastic syndromes in neuroblastoma may multiply. Review of the clinical data and the literature on this syndrome may help in the diagnosis of neuroblastoma.
OBJECTIVE
In order to make more accurate diagnosis, we reviewed the clinical data and the
Neuroblastoma originates in the adrenal medulla or anywhere in the body that sympathetic tissue normally is present. It may present with a variety of symptoms due to primary tumor, metastatic disease, or unusual signs and symptoms such as opsoclonus-myoclonus or severe diarrhea. Despite the fact
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