Lappuse 1 no 19 rezultātiem
1. The effects of intraperitoneal injections of 10 mg/kg harmaline were tested in normal mice and three strains of cerebellar mutant mice with Purkinje cell degeneration. Ten normal (wild-type) mice (+/+), as well as five lurcher (lc/+), six nervous (nr/nr), and eight Purkinje cell degeneration
The indole alkaloids ibogaine and harmaline are beta-carboline derivatives that cause both hallucinations and tremor. Reports that ibogaine may have potent anti-addictive properties have led to initiatives that it be tested for the treatment of opiate and cocaine addiction. In this study,
The cerebellar Purkinje cells of both birds and mammals contain a specific calcium-binding protein, 28 K cholecalcin (CaBP). This is the same protein as the vitamin D-dependent kidney CaBP, but its Purkinje cell level is apparently vitamin D independent. The cerebellar CaBP contents of
There is a meaningful necessity for a targeted therapy of essential tremor (ET), as medications have not been developed specifically for ET. For nearly a century, many drugs have been applied in the treatment of tremor but the drug treatment of ET remains still unknown. Some potential Since there is degeneration of substantia nigra concomitant with that of locus coeruleus (LC) in patients with Parkinson's disease, the study was performed to determine the role of central norepinephrine (NE) on harmaline induced tremor. The duration of harmaline (10 mg/kg IP) induced tremor was
The rodent model of harmaline-induced tremor has been widely used for experimental analysis of tremor. Activation of the olivocerebellar system plays a key role in tremor-generating mechanisms. One undetermined problem is whether there are species-specific differences in effects of harmaline. The
Ibogaine, an indole alkaloid that causes hallucinations, tremor, and ataxia, produces cerebellar neurotoxicity in rats, manifested by degeneration of Purkinje cells aligned in narrow parasagittal bands that are coextensive with activated glial cells. Harmaline, a closely related alkaloid that
Previous studies indicate that 3-acetylpyridine (3-AP) intoxication produces discrete lesions of the inferior olive (IO) and other central structures in rats and mice. As a result, it has been widely employed in investigations of the influences of climbing fibers on cerebellar function. This study
Nitric oxide synthase and its product nitric oxide are believed to be significantly involved in neuronal degeneration associated with various excitotoxic events and in some acute and chronic neuropathological disease states. The synchronous activation of inferior olive neurons by the drug harmaline
The activity of the olivocerebellar complex and the structures related in series with it have been studied using the complementary action of harmaline and 3-acetylpyridine to isolate the two principal inputs to the cerebellar Purkinje cells. The activities of the various nuclei as well as the entire
1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) is a selective neurotoxin which produces degeneration of the nigrostriatal bundles in the central nervous system of man and animals. In these areas of the brain are concentrated the receptor binding sites for [3H]MPTP. 1-Alkyl-4,
Harmaline (28 mumoles/kg u.v.), cold exposure (4C) or isoniazid (2.2 mmoles/kg s.c.) increased the cGMP content in rat cerebellar cortex several fold. Isoniazid but not harmaline or cold exposure increased cGMP in the deep cerebellar nuclei (nuclei interpositus, vestibularis and fastigius) and
To study the pathophysiology of olivopontocerebellar atrophy (OPCA), we destroyed inferior olive nuclei of male Wistar rats using 3-acetyl pyridine (3-AP) + harmaline + niacinamide. These rats showed a sluggish and ataxic gait. To elucidate the relationship between thyrotropin releasing hormone
In this review, we hope to stimulate interest in animal models as opportunities to understand tremor mechanisms within the cerebellar system. We begin by considering the harmaline model of essential tremor (ET), which has ET-like anatomy and pharmacology. Harmaline induces the inferior olive (IO) to
For a better understanding of germination after seed storage, metabolite profiling was conducted using hybrid triple quadrupole time-of-flight (QTOF) mass spectrometry. After moisture content (MC) equilibration, seeds of "WAS170" (short-lived) and "IR65483" (long-lived) were stored at 10.9% MC and