The aim of the present study was to investigate the beneficial action, in vivo, of pectin against subacute lead acetate (350 mg/l) intoxication. The adverse effects of lead on the haematological disturbances that concerned, more precisely, the decrease of red blood corpuscle life duration and on the appearance of ever granulated basophilic haematites by inhibiting an enzyme responsible for haeme synthesis have been demonstrated after 1 month of oral lead administration to female Wistar rats. Also, this caused an elevation of the blood lead level as compared with the control group. The introduction of carrot pectin to a level of 3% in the feeding of intoxicated rats has shown a chelating and correcting effect on haematological disturbances caused by lead toxicity, which is reflected by a significant decrease (P<0.05) of blood lead (from 117 to 65 to 19 μg/l), zinc protoporphyrine (portophyrine-zinc from 7.7 to 5.1 to 3.5 μg/g of Hb), increase in haemoglobin to 27% (from 5.09 to 6.05 to 7.79%) and iron to 8% (from 1.34 to 0.9 to 0.5%) of the treated rats by pectin as compared with the untreated groups. Differences in blood lead were significant between the control diet and the addition of pectin therefore suggesting that pectin fibre ingestion in diets decreases the risk of lead poisoning.
This study is conducted to examine the effect of the oral administration of pectin of dates on perturbation of the biochemical parameters induced by lead. Male rats were exposed to lead acetate at 350mg/Kg for one month, after this period, rats treated during one month with the pectin of date at 3%. Rats were sacrificed, the blood and urine are collected for the biochemical assays: glucose, total protein, phosphatase acide (PAC), alkaline phosphatase (PAL), aspartate aminotransferase (AST), alanine aminotransferase (ALT), creatinine, urea and uric acid. The results showed that the exposure to lead has induced a disturbance in the biochemical parameters. Thus, the treatment by the pectin of dates reduced the high concentration of these parameters. Our results show that the pectins of dates may have a corrective effect on the biochemical disturbances induced by the lead.
L’évaluation des propriétés phytothérapeutiques, voire antioxydantes, antimicrobiennes et anti-inflammatoires, demeure une tâche très utile, une piste intéressante à explorer. De ce fait, la médecine actuelle remet de plus en plus à l’honneur les plantes médicinales. Les extraits bruts des plantes et des épices commencent à avoir beaucoup d’intérêt vu leur composition en molécules bioactives. Ce travail est une contribution pour évaluer les propriétés antihémolytiques et anti-inflammatoires des graines de Lepidium sativum L. « cresson alénois », une plante médicinale de la famille des Brassicaceae, largement utilisée en médecine traditionnelle à l’échelle du monde arabe grâce à sa richesse en constituants chimiques. L’extraction hydrométhanolique et aqueuse nous a permis de récupérer deux extraits avec des rendements variables. Le taux le plus élevé était enregistré par macération avec 16,43 %. L’analyse de l’effet anti-inflammatoire in vitro des deux extraits a prouvé une activité de stabilisation des protéines contre la dénaturation thermique avec une efficacité comparable à celle de l’anti-inflammatoire standard diclofénac (IC50 = 0,84 mg/ml). IC50 = 1,26 mg/ml macération et IC50 = 2,17 mg/ml pour l’extrait aqueux. Les résultats de l’activité antihémolytique réalisée in vitro indiquent que l’extrait hydrométhanolique de ces graines possède une capacité importante vis-à-vis l’inhibition de l’hémolyse des érythrocytes de 72,18 % (1 000 μg/ml).
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