niacinamide/ضمور

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Protective effect of niacinamide on interleukin-1beta-induced annulus fibrosus type II collagen degeneration in vitro.

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The protective effect of niacinamide on interleukin-1beta (IL-1beta)-induced annulus fibrosus (AF) type II collagen degeneration in vitro and the mechanism were investigated. Chiba's intervertebral disc (IVD) culture models in rabbits were established and 48 IVDs from 12 adult Japanese white rabbits

Experimental study on inhibitory effect of niacinamide on tumor necrosis factor-alpha-induced matrix degradation of annulus fibrous tissue in vitro.

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The inhibitory effect of niacinamide on tumor necrosis factor-alpha (TNF-alpha) induced annulus fibrous (AF) degradation was assessed, and the mechanism of the inhibition was investigated. Chiba's intervertebral disc (IVD) culture model was established. Forty-eight IVDs from 12 adult Japanese white

Topical 6-aminonicotinamide plus oral niacinamide therapy for psoriasis.

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Ninety-nine patients with psoriasis were treated topically with 6-aminonicotinamide (6-AN) in four years. In a double-blind study, 1% 6-AN gel was superior to 0.1% triamcinolone acetonide in 29 comparisons, equal in three, and inferior in one when applied without occlusion for four weeks. In an open

Up-regulation of niacinamide in intervertebral disc aggrecan in vitro.

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The regulatory effects of niacinamide (Nia) on intervertebral disc (IVD) aggrecan in vitro was investigated. Chiba's 10 ng/mL interleukin-1 (IL-1)-induced rabbit IVD degeneration model in vitro was established. 0.5, 0.25 and 0.05 mg/mL Nia was added to normal and degenerated IVDs for intervention.

[Morphologic and functional characteristics of an animal model of cerebellar degeneration (lurcher mutant mice)].

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Lurcher mutant mice are characterized by genetically determined degeneration of cerebellar Purkinje cells, granule cells and inferior olivary neurons (ION). In the morphological part of this study Lurcher mutant and wild type mice were given intraperitoneal injections of 3-acetylpyridine (3AP) to

Niacinamide pretreatment reduces microvesicle formation in hairless guinea pigs cutaneously exposed to sulfur mustard.

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It has been proposed that sulfur mustard (HD) may indirectly activate poly(ADP-ribose) polymerase (PADPRP) by alkylating cellular DNA (Papirmeister et al., 1985). Activation of PADPRP results in the depletion of cellular NAD+, which initiates a series of biochemical processes that have been proposed

3-acetylpyridine-induced degeneration in the adult ascidian neural complex: Reactive and regenerative changes in glia and blood cells.

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Ascidians are interesting neurobiological models because of their evolutionary position as a sister-group of vertebrates and the high regenerative capacity of their central nervous system (CNS). We investigated the degeneration and regeneration of the cerebral ganglion complex of the ascidian Styela

Central neurotoxic effects of intraperitoneally administered 3-acetylpyridine, harmaline and niacinamide in Sprague-Dawley and Long-Evans rats: a critical review of central 3-acetylpyridine neurotoxicity.

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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

Clinical and microscopic features of generalized discoid lupus erythematosus in dogs (10 cases).

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BACKGROUND Generalized discoid lupus erythematosus (GDLE) is a newly recognized canine variant of chronic cutaneous lupus erythematosus (CLE) that is not well characterized. OBJECTIVE We report herein the signalment, clinical signs, treatment outcome, histopathology and immunological findings of 10

A pyridoxine-dependent behavioral disorder unmasked by isoniazid.

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A 3-year-old girl had behavioral deterioration, with hyperkinesis, irritability, and sleeping difficulties after the therapeutic administration of isoniazid. The administration of pharmacologic doses of pyridoxine hydrochloride led to a disappearance of symptoms. After discontinuing isoniazid

Evidence for an active type of cell death with ultrastructural features distinct from apoptosis: the effects of 3-acetylpyridine neurotoxicity.

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3-Acetylpyridine is a niacinamide antagonist with potent neurotoxic properties in vitro and in vivo. 3-Acetylpyridine neurotoxicity was associated with positive DNA end-labelling and displayed features of active cell death without the ultrastructural changes of apoptotic cell death. After systemic

[Pellagroid encephalopathy in chronic alcoholism. Clinicopathological study (author's transl)].

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Pathological findings from two patients with clinical symptoms of diffuse encephalopathy who died due to a bronchopneumonia are studied. Postmortem examination of the central nervous system revealed neuronal changes which suggested the diagnosis of pellagroid encephalopathy. The differential

Thyrotropin-releasing hormone and its receptor in the cerebellum of inferior olive destroyed rat brain.

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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

Influence of low O2 and high CO2 environment on changes in metabolite concentrations in harvested vegetable soybeans.

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Influence of atmosphere and storage period on the physicochemical and biological properties of harvested vegetable soybeans stored for 10 d at 25 °C was investigated. Storing vegetable soybeans under modified atmosphere (low O₂ and high CO₂), was more effective in maintaining

The use of botanical extracts as topical skin-lightening agents for the improvement of skin pigmentation disorders.

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Both physicians and dermatology patients are searching for long-term topical skin care solutions (both cosmetic and cosmeceutical) to address problems presented by skin hyperpigmentation. Specifically, some women often express a desire to "lighten" skin tone by achieving improved visible tone,

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