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1.
West Afr J Med ; 38(2): 180-184, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33641156

RESUMO

Hyperimmunoglobulin E syndrome is a Primary Immuno-deficiency Syndrome (PIDS) characterized by high serum immunoglobulin E, eczema rash and recurrent sinopulmonary and skin infections. In this report, we present a case of squamous cell carcinoma of the lower lip in a young patient with Hyper IgE syndrome. The patient had initially developed a chronic non-healing ulcer and a biopsy done revealed a squamous cell carcinoma. Immunodeficiency has been recognized as an essential risk factor for cancer through immune dysregulation and defective immunosurveillance.


Assuntos
Carcinoma de Células Escamosas , Síndrome de Job , Dermatopatias , Carcinoma de Células Escamosas/diagnóstico , Humanos , Imunoglobulina E , Síndrome de Job/complicações , Síndrome de Job/diagnóstico , Lábio
2.
Food Chem Toxicol ; 147: 111862, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33217524

RESUMO

INTRODUCTION: Cuprizone is a neurotoxicant causing neurodegeneration through enzymes inhibition and oxidative stress. D-Ribose-L-Cysteine (DRLC) is a powerful antioxidant with neuroprotective properties. This study explored the antioxidant response of DRLC against cuprizone-induced behavioral alterations, biochemical imbalance and hippocampal neuronal damage in adult wistar rats. MATERIALS AND METHODS: Thirty two (32) adult male wistar rats (150-200g) were divided into four groups (n = 8). Group A received normal saline only as placebo; Group B received 0.5% cuprizone diet only; Group C received a combination of 0.5% cuprizone diet and 100 mg/kg bw of DRLC and Group D received 100 mg/kg bw of DRLC only. The administration was done through oral gavage once daily for 45 days. After the last treatment, neurobehavioral tests (Morris Water Maze and Y maze) was conducted; animals sacrificed and brain harvested for histological analysis and biochemical estimations of levels of antioxidants, oxidative stress markers, neurotransmitters and enzyme activitties. RESULTS: The results showed significant memory decline, hippocampal alterations, decrease levels of antioxidant markers, enzyme and neurotransmitters activities with concomitant increase in norepinephrine and oxidative stress markers in cuprizone induced rats relative to normal but was attenuated with DRLC administration. CONCLUSION: Cuprizone causes cognitive impairment and neurodegeneration through oxidative stress; however, administration of DRLC ameliorated neuropathological alteration induced by cuprizone.


Assuntos
Doença de Alzheimer/induzido quimicamente , Cuprizona/toxicidade , Cisteína/análogos & derivados , Suplementos Nutricionais , Hipocampo/efeitos dos fármacos , Tiazolidinas/uso terapêutico , Animais , Antioxidantes/metabolismo , Antioxidantes/uso terapêutico , Catalase/metabolismo , Cisteína/uso terapêutico , Dieta , Contaminação de Alimentos , Glutationa Sintase/metabolismo , Masculino , Malondialdeído/metabolismo , Óxido Nítrico/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Ratos , Ratos Wistar , Superóxido Dismutase/metabolismo
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