Leaf and root bark extracts of Ziziphus abyssinica Hochst ex. A. Rich (Rhamnaceae) ameliorate hepatic, renal and splenic injuries induced by phenylhydrazine in rats

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Isaac T. Henneh ◽  
Phyllis E. Owusu Agyei ◽  
Ernest Obese ◽  
Robert P. Biney ◽  
Meshack Antwi-Adjei ◽  
...  
Keyword(s):  
Negative Control Group ◽  
Therapeutic Benefit ◽  
Negative Control ◽  
Multiple Organ ◽  
Control Group ◽  
Albino Rats ◽  
Root Bark ◽  
Drug Molecules ◽  
Red Blood Cell Count ◽  
Splenic Necrosis

AbstractObjectivesZiziphus abyssinica (ZA) is employed in managing several ailments in Traditional African Medicine. Scientific evaluations are necessary to ascertain the medicinal potential of ZA as a source of new drug molecules. This study investigated the possible therapeutic benefit of ZA leaf (ZAL) and root bark (ZARB) extracts in an experimental model of multi-organ injuries induced by phenylhydrazine (PHZ).MethodsHyperbilirubinaemia, hepatotoxicity, nephrotoxicity and splenic injuries were induced by pretreating albino rats with PHZ (40 mg/kg, p.o.) for two alternate days. Afterward, six out of the eight groups of rats (n = 5) used were treated with either ZAL or ZARB (30, 100 and 300 mg/kg/day, p.o.) for seven days. Naïve control rats received saline without PHZ whereas negative control group received saline after PHZ. After one week of treatment, rats were sacrificed and blood collected for assessment of haematological and biochemical parameters. Liver, kidney and spleen sections were processed for histology and examined under light microscope.ResultsData indicate that PHZ significantly (p < 0.05) increased total bilirubin, serum alanine aminotransferase, aspartate aminotransferase, blood urea nitrogen (BUN), creatinine and BUN/creatinine ratio whereas red blood cell count was significantly reduced. These anomalies were significantly reversed in rats treated with ZAL or ZARB. The therapeutic effect of the extracts was supported by photomicrographs of the liver, kidney, and spleen of rats which revealed recovery from PHZ-mediated pyknosis, glomerular degeneration and multiple splenic necrosis respectively.ConclusionsOverall, data from this study suggest that ZA may be useful in multiple organ injuries associated with PHZ-like xenobiotic toxicity.

scholarly journals Pharmacological Investigation of the Wound Healing Activity of Cestrum nocturnum (L.) Ointment in Wistar Albino Rats

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Hemant Kumar Nagar ◽  
Amit Kumar Srivastava ◽  
Rajnish Srivastava ◽  
Madan Lal Kurmi ◽  
Harinarayan Singh Chandel ◽  
...  
Keyword(s):  
Wound Healing ◽  
Ethanolic Extract ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Albino Rats ◽  
Healing Effect ◽  
Wound Model ◽  
Wound Healing Effect ◽  
Wistar Albino Rats

Objectives. The present study was aimed at investigating the wound healing effect of ethanolic extract of Cestrum nocturnum (L.) leaves (EECN) using excision and incision wound model. Methods. Wistar albino rats were divided into five groups each consisting of six animals; group I (left untreated) considered as control, group II (ointment base treated) considered as negative control, group III treated with 5% (w/w) povidone iodine ointment (Intadine USP), which served as standard, group IV treated with EECN 2% (w/w) ointment, and group V treated with EECN 5% (w/w) ointment were considered as test groups. All the treatments were given once daily. The wound healing effect was assessed by percentage wound contraction, epithelialization period, and histoarchitecture studies in excision wound model while breaking strength and hydroxyproline content in the incision wound model. Result. Different concentration of EECN (2% and 5% w/w) ointment promoted the wound healing activity significantly in both the models studied. The high rate of wound contraction (P<0.001), decrease in the period for epithelialization (P<0.01), high skin breaking strength (P<0.001), and elevated hydroxyproline content were observed in animal treated with EECN ointments when compared to the control and negative control group of animals. Histopathological studies of the EECN ointments treated groups also revealed the effectiveness in improved wound healing. Conclusions. Ethanolic extract of Cestrum nocturnum (EECN) leaves possesses a concentration dependent wound healing effect.

Haematological and histopathological effects of apigenin, phloretin and myricetin based on uterotrophic assay in immature Wistar female albino rats

2014 ◽  
Vol 34 (7) ◽  
pp. 755-768
Author(s):  
N Barlas ◽  
G Karabulut
Keyword(s):  
Ethinyl Estradiol ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Female Rats ◽  
Control Group ◽  
Albino Rats ◽  
Immature Female ◽  
Tissue Samples ◽  
Uterotrophic Assay

In this study, it is aimed to determine the histopathological and haematological effects of apigenin, phloretin and myricetin on Wistar immature female rats using Tier 2 of the uterotrophic assay. The female rats were divided into 17 groups with 6 rats in each group. There was a negative control group and positive control dose groups that contained 0.07 µg/kg/day, 0.7 µg/kg/day and 7 µg/kg/day of ethinyl estradiol (EE), 0.7 µg/kg/day 17α-ethinyl estradiol + 1 mg/kg/day tamoxifen and genistein. The other dose groups contain 1 mg/kg/day, 10 mg/kg/day and 100 mg/kg/day of apigenin, myricetin and phloretin. All chemicals had been given to Wistar immature female rats with oral gavage for three consecutive days. At the end of the study, blood samples were analysed for haematological parameters. Tissue samples that were taken from the liver, kidney, spleen and thyroid were histopathologically and histomorphometrically examined. There were no significant differences between oil control and other dose groups for glomerular histomorphometry. However, there were siginificant differences for thyroid histomorphometry. Especially, 10 and 100 mg/kg/day of phloretin dose groups had a siginificant increase in colloid surface area in thyroid compared with the 1 mg/kg/day of phloretin and oil control groups. Significant histopathological changes (congestion, degeneration, fibrosis and mononuclear cell infiltration) were noted in the tissue specimens obtained from the treatment groups compared with the control group. According to the results of the haematological analysis of the groups, especially the values of erythrocytes and haematocrit were increased significantly in most of the dose groups according to the oil control group.

scholarly journals Anti-Oxidant and Hepatoprotective Effects of Senecio biafrae on CCl4-induced Liver Damage in Rats

2019 ◽  
Vol 13 (2) ◽  
pp. 31-35
Author(s):  
Israel Oghenevwodoko Okoro ◽  
◽  
Helen Ejiro Kadiri ◽  
Keyword(s):  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Albino Rats ◽  
Root Extract ◽  
Distilled Water ◽  
Standard Drug ◽  
Anti Oxidant

Background: The present study was performed to explore whether the aqueous extract of Senecio biafrae (S. biafrae) roots provide any in vivo protective activity against carbon tetrachloride (CCl4)-induced hepatotoxicity in male albino rats. Methods: Rats (150-200 grams) were grouped into five groups (A-E) of six rats each and were treated orally for twelve days with 72 hourly administration of CCl4 (1 mL/kg) as follows: Group A received distilled water only (negative control), Group B was administered distilled water plus CCl4 (positive control), Group C was administered 400 mg/kg extract and CCl4, Group D received 200 mg/extract and CCl4, while Group E was administered standard drug (Silymarin 25mg/kg, PO). Results: Pre-treatment with the extract of S. biafrae (200 or 400mg/kg) or Silymarin (25mg/kg) caused significant restoration in the biomarkers as evaluated by reducing the levels of malondialdehyde, transaminases and elevating the levels of superoxide dismutase, catalase and glutathione peroxidase activities, which were altered by CCl4 toxicity. The extract at a dose of 400mg/kg demonstrated similar activities comparable to the standard drug (Silymarin). Conclusion: The results of this study indicate that the root extract of S. biafrae possesses hepatoprotective and anti-oxidant properties which may be due to the presence of phytochemicals in it.

scholarly journals The Combination Effect of Simvastatin and Virgin Coconut Oil on Total Cholesterol Levels in Dislipidemic Male Albino Rats (Rattus norvegicus)

2021 ◽  
Vol 12 (2) ◽  
pp. 72
Author(s):  
Lutfi Dewanda Nugroho ◽  
Soebagijo Adi Soelistijo ◽  
Jusak Nugraha
Keyword(s):  
Treatment Group ◽  
Total Cholesterol ◽  
Total Cholesterol Level ◽  
Coconut Oil ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Albino Rats ◽  
Cholesterol Levels ◽  
Group I

Introduction: Simvastatin is a primary pharmacological therapy for dyslipidemia (hypercholesterolemia). Virgin coconut oil (VCO) is a companion intake of statin drugs considered capable of lowering blood cholesterol levels. This study aimed to determine the combination effect of statin drug groups with VCO on total cholesterol.Methods: The stages of this study started with the adaptation process of animals, giving a high-fat diet (HFD), and treatment with simvastatin and VCO. The adaptation process was conducted where the experimental animals were fed pellets and drank clean water in a container. A HFD was given by mixing pork brains with distilled water with a ratio of 1:3 as much as 2 ml per day for 21 days. In simvastatin and VCO treatment for 7 days, the experimental animals were divided into 4 groups; group I was given aquades, group II was given VCO, group III was given simvastatin, and group IV was given simvastatin and VCO. The total cholesterol levels in the blood of albino rats were examined by employing a BS-300 Chemistry Analyzer through a spectrophotometric method. The total cholesterol levels data obtained were then examined for normality (Shapiro-Wilk test) and analyzed parametrically by utilizing One-way ANOVA.Results: The average total cholesterol level in the negative control group (being given a standard diet) was 45.57 mg/dL. The averages of blood total cholesterol levels were 47.28 mg/dL, 45.00 mg/dL, 46.85 mg/dL, 41.42 mg/dL, and 44.28 mg/dL in the positive control group (given an HFD), in the treatment group I, in the treatment group II, in the treatment group III, and in the treatment group IV, respectively. There were no significant distinctions in the statistical test on decreasing blood total cholesterol among the negative control group, positive controls I, II, III, and IV.Conclusion: Combination of simvastatin and VCO tends to reduce the total cholesterol level in albino rats. This is better than just giving VCO simvastatin alone.

scholarly journals Toxicological Effect of Euphorbia heterophylla Linn

2021 ◽  
pp. 1-15
Author(s):  
J. K. Kone ◽  
A. K. Onifade
Keyword(s):  
White Blood Cells ◽  
Clinical Manifestations ◽  
Negative Control Group ◽  
Negative Control ◽  
Hot Water ◽  
Control Group ◽  
Albino Rats ◽  
Toxicological Effect ◽  
Toxicological Effects ◽  
Animal House

Euphorbia heterophylla has been reported to possess enormous medicinal benefits hence there is a need for holistic research on its toxicological effects. Four different solvents (cold and hot water, chloroform and 80% methanol) were used to extract the aerial parts of Euphorbia heterophylla Linn. Experimental albino rats were obtained from Federal University of Technology Akure’s Microbiology Department Animal House. Toxicological analysis of Euphorbia heterophylla extracts was carried out on the experimental albino rats. The animals were grouped into thirteen with three rats in a group different concentrations of the extracts were administered orally to different groups of the rats for a period of two weeks (14 days). Sterile distilled water was administered to the negative control group. During the 14 days of extracts administration, the animals were observed for clinical manifestations like salivation, nervousness, imitability, itching of the nose and diarrhoea. After the expiration of the two weeks, the animals were sacrificed and vital organs like heart, liver, kidney and intestine were harvested and examined for any degenerative changes and lesions. Blood samples were collected before and after the administration of the extracts to check for blood parameters (Packed Cell Volume (PCV), white blood cell count (total and differential), erythrocyte sedimentation rate (ESR) and haemoglobin (Hb) estimation. The toxicological results of the extracts showed various degrees of abnormalities detected in the histopathological sections of the intestine, kidney and the heart. It was found that all the extracts at different concentrations burnt the intestinal walls of all the animals tested. There were significant reductions in the total white blood cells (WBC) and neutrophil counts while there was a significant increase in the lymphocytes count after the administration of the extracts. The findings of this study revealed that Euphorbia heterophylla had toxicological effects on the albino rats organs but increases there lymphocytes count, boosting their immune system, however advance researches to eliminate the toxic phytochemicals from the extract is recommended.

scholarly journals Pengaruh Suplementasi Madu Trigona terhadap Parameter Fungsi Hati dan Ginjal Tikus Albino (Rattus norvegicus) yang Diberikan Simvastatin

2018 ◽  
Vol 4 (1) ◽  
pp. 36-43
Author(s):  
Sukamto Salang Mamada ◽  
Usmar Usmar ◽  
Aliyah Aliyah ◽  
Aminullah Aminullah ◽  
Ayu Indah Rahayu ◽  
...  
Keyword(s):  
Rattus Norvegicus ◽  
Lipid Level ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Albino Rats ◽  
Group V ◽  
Group I ◽  
Significant Difference ◽  
Coa Reductase

Simvastatin is a drug acting on 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase enzyme leading to decrease of lipid level in plasma. Simvastatin is associated with pleiotropic effects such as cardioprotective, hepatoprotective, and nephroprotective effect. This study aimed to observe effect of supplementation of trigona honey on parameters of liver function (SGPT and SGOT) and kidney function (urea) in albino rats (Rattus norvegicus) given 40 mg/kg simvastatin. Twenty-four male albino rats were divided into 6 groups (n=4). Each group was administered different treatments for 15 days orally. Group I was put as health control without any treatment, group II was given sodium carboxymethylcellulose (1% b/v) as negative control, group III was given simvastatin at the dose of 40 mg/kg, group IV was administered simvastatin (40 mg/kg) and trigona honey (6.5% v/v), while group V and VI were administered simvastatin (40 mg/kg) and ubiquinone (1.43 mg/kg); and simvastatin (40 mg/kg), trigona honey (6.5% v/v), and ubiquinone (1.43 mg/kg), respectively. Upon the treatments, level of SGOT, SGPT, and ureum was determined. The data were analyzed by using Analysis of Variance (ANOVA) and Least Significant Difference tests (p=0.05). According to the analysis, it was concluded that supplementation of trigona honey in rats administered simvastatin showed significantly lower level of all parameters than groups of simvastatin and controls.

scholarly journals Evaluation de l’activité antipyrétique, analgésique et anti-inflammatoire de l’extrait méthanolique de Vitex congolensis De Wild. & T. Durand

2020 ◽  
Vol 13 (7) ◽  
pp. 3066-3078
Author(s):  
Victor Okombe Embeya ◽  
Gaël Nzuzi Mavungu
Keyword(s):  
Guinea Pigs ◽  
Methanolic Extract ◽  
Democratic Republic Of Congo ◽  
Physiological Saline ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Root Bark ◽  
Distilled Water ◽  
Anti Inflammatory

En République Démocratique du Congo, Vitex congolensis De Wild. & T. Durand (Lamiaceae) est une plante médicinale largement utilisée dans le traitement des pathologies à composante inflammatoire. La présente étude a eu pour objectif d’évaluer les activités antipyrétique, analgésique et anti-inflammatoire de l’extrait méthanolique de la poudre d’écorce de racine de cette espèce sur des modèles de pyrexie, algésie et  inflammation induites chez les cobayes. L’étude a concerné 24 cobayes de deux sexes répartis en quatre lots de 6 animaux : un lot témoin positif traité avec du diclofenac en intrapéritonéale, un lot témoin négatif ayant reçu soit de l’eau distillée per os soit du sérum physiologique en  intrapéritonéale ainsi que deux lots ayant respectivement reçu 100 mg et 300 mg de l’extrait méthanolique de la poudre d’écorce de racines de V. congolensis par kg de poids corporel par voie orale. Les deux doses (100 et 300 mg) de l’extrait méthanolique préviennent de façon significative, le processus inflammatoire comparativement aux lots standard (médicaments de références) et contrôle négatif (eau distillée/sérum physiologique). L’étude a montré que l’extrait méthanolique d’écorces de racine de V. congolensis pourrait être une source potentielle des nouveaux  médicaments anti-inflammatoires.Mots clés: antipyrétique, analgésique, anti-inflammatoire, extrait  méthanolique, Vitex congolensis De Wild. & T. Durand. English Title: Antipyretic, analgesic and anti-inflammatory activity of the methanolic extract of Vitex congolensis De Wild. & T. DurandIn the Democratic Republic of Congo, Vitex congolensis De Wild. & T. Durand (Lamiaceae) is a medicinal plant widely used in the treatment of pathologies with an inflammatory component. The main objective of this study was to evaluate the antipyretic, analgesic and anti-inflammatory activities of the methanolic extract of the powder of this species on models of pyrexia, algesia and inflammation induced in guinea pigs. The study concerned 24 guinea pigs of both sexes divided into 4 lots of six animals each : a positive control group treated with diclofenac intraperitoneally, a negative control group that received either oral or intraperitoneal (distilled water / physiological saline) ; and two groups respectively receiving 100 mg and 300 mg of the methanolic extract of the root bark powder of V. congolensis per kg of body weight orally. The two doses (100 and 300 mg) of the methanolic extract significantly prevent the inflammatory process compared to standard batches (reference drugs) and negative control (distilled water / physiological saline). The study showed that the methanolic extract of V. congolensis root bark could be a potential source of new anti-inflammatory drugs.Keywords: antipyretic; analgesic, anti-inflammatory, methanolic crude, Vitex congolensis De Wild. & T.Durand.

The Effect of Herbal Infusion on Fasting Blood Glucose (FBS) and Malondyaldehyde (MDA) Levels in Diabetic Rats

2020 ◽  
Vol 1009 ◽  
pp. 9-14
Author(s):  
Apriliani Ismi Fauziah ◽  
Lintang Dian Saraswati ◽  
Ari Udiyono ◽  
Beti Safitri
Keyword(s):  
Blood Glucose ◽  
Fasting Blood Glucose ◽  
Aloe Vera ◽  
Control Sample ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Diabetic Rats ◽  
Control Group ◽  
Albino Rats

Aloe vera, ginger, and sappan wood have recently gained attention as a potent antioxidant. This study was undertaken to analyze the possible effects of oral administration of herbal infusion (the combination of Aloe vera, ginger, and sapang wood) on fasting blood glucose (FBS) and malondialdehyde (MDA) levels in diabetic rats. Forty male albino rats (150-250 gm) were divided into five groups (n=8 in each group): alloxan-induced diabetic (negative control group/K-), acarbose treated (positive control group/K+), diabetic rats treated with herbal infusion dose 6.75 mg/150 gmbw (P1), diabetic rats treated with herbal infusion dose 13.5 mg/150 gmbw (P2), and diabetic rats treated with herbal infusion dose 20.25 mg/150 gmbw (P3). Male albino rats induced with a dose of alloxan 120 mg/kgbw and also 5% glucose after 6 hours of alloxan induction. FBS and MDA levels of each rat were measured before induction of alloxan was performed as a control sample. After seven days and 14 days of herbal infusion administration, FBS parameters was investigated with a glucometer. In the last week, the concentration of MDA in serum blood was determined using a UV-VIS spectrophotometer with a wavelength of 545 nm. Diabetic rats exhibited a significant decrease in FBS and MDA. Administration of herbal infusion was reduced FBS significantly between groups (ANOVA, Bonferroni, p<0.05). The concentration of MDA in serum blood was decreased significantly on K-, K+, P1, P2, P3 compared to the control group (ANOVA, LSD, P<0.05). It could be postulated herbal infusion has anti-hyperglycemic and anti-diabetic effects of FBS and MDA in male albino rats Wistar strain.

scholarly journals Evaluation of Protective Properties of Elaeis oleifera Fruit Extract on Renal Parameters of Dichlorvos-Induced Nephrotoxocity in Albino Rats

2020 ◽  
pp. 1-13
Author(s):  
Edna Ogechi Nwachuku ◽  
Fedelis Beega ◽  
Adline Erinma Ben- Chioma ◽  
Ngozi Brisibe ◽  
Ibioku Elekima
Keyword(s):  
Treatment Group ◽  
Palm Oil ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Positive Control Group ◽  
Control Group ◽  
Albino Rats ◽  
Study Group ◽  
Acute Study

Aim: Evaluate the protective effects of palm oil on renal parameters after dichlorvos toxicity in albino rats. Study Design and Methodology: The study consisted of 3 phases: The acute study which lasted for 24 hours, the sub-acute study which lasted for 14 days and the sub chronic study which lasted for 30 days. The design and treatment pattern is shown below. Phase 1: Acute Study. Group 1: No DDVP, No palm oil for 24 hours (Negative control), Group 2: 30 mg/kg of DDVP without palm oil (positive control), Group 3: 30 mg/kg of DDVP and 100 mg/kg palm oil for 24 hours (treatment group). Phase 2: Sub-Acute (14 days) Study. Group 4: No DDVP, No palm oil for 14 days (Negative control), Group 5: 10 mg/kg of DDVP without palm oil daily for 14 days (positive control), Group 6: 10 mg/kg of DDVP and 100 mg/kg of palm oil daily for 14 days (positive control). Phase 3: Sub-Chronic (30 days) Study. Group 7: No DDVP, No palm oil for 30 days (Negative control), Group 8: 10 mg/kg of DDVP without palm oil daily for 30 days (positive control), Group 9: 10 mg/kg of DDVP and 100 mg/kg palm oil daily for 30 days (treatment group). All administration was done orally. After the period of treatments, the rats were sacrificed after 18 hours of fast. Whole blood samples (5 mls) were collected into lithium heparin bottle and spun at 3500 rpm for 5 minutes to obtain plasma samples. Samples obtained were used for the determination of Na+, K+, HCO3, urea, and creatinine while renal tissues obtained were used for histopathological examinations. Results: Significantly higher values were seen in urea in the dichlorvos treated rats over a period of 24 hours, 14 days, and 30 days as compared to rats co-treated with palm oil and the control. Creatinine indicated significantly higher over a period of 24 hours while non-significant increases were observed in the dichlorvos treated rats over a period of 14 days and 30 days. More so, significantly higher values were seen in potassium in the dichlorvos treated rats over a period of 24 hours and 14 days, while significantly higher values in potassium were seen after period of 30 days as compared to rats co-treated with palm oil and the control. Sodium and chloride did not indicate significant difference over the period of 24 hours, 14 days, and 30 days. Histological examination of the renal tissue indicated structural distortions dichlorvos treated rats over a period of 24 hours, 14 days and 30 days while significant improvements in the structural integrity of the kidney were observed in rats co-treated with palm oil. Conclusion: Results obtained indicated that palm oil showed a protective effect in ameliorating the nephrotoxicity induced by dichlorvos as shown by the histological examination and decreased values of creatinine and urea as well as potassium in palm oil treated rats.

Protective Effect of Curcumin and Chlorophyllin against DNA Mutation Induced by Cyclophosphamide or Benzo[a]pyrene

2007 ◽  
Vol 62 (3-4) ◽  
pp. 215-222 ◽  
Author(s):  
Marwa A. Ibrahim ◽  
Adel M. Elbehairy ◽  
Magdy A. Ghoneim ◽  
Hassan A. Amer
Keyword(s):  
Oxidative Stress ◽  
Dna Fragmentation ◽  
Natural Antioxidants ◽  
Experimental Period ◽  
Negative Control Group ◽  
Treated Group ◽  
Negative Control ◽  
Control Group ◽  
Albino Rats ◽  
Dna Mutation

Abstract The current study was carried out to evaluate the potency of curcumin and chlorophyllin as natural antioxidants to reduce the oxidative stress markers induced by cyclophosphamide (CP) and benzo[a]pyrene [B(a)P] which were used as free radical inducers. For this purpose, 126 male albino rats were used. The animals were assigned into 4 main groups: negative control group; oxidant-treated group (subdivided into two subgroups: cyclophosphamide- treated group and benzo[a]pyrene-treated group); curcumin-treated group; and chlorophyllin-treated group. Liver samples were collected after two days post the oxidant inoculation and at the end of the experimental period (10 weeks). These samples were examined for determination of liver microsomal malondialdehyde (MDA), DNA fragmentation, restriction fragment length polymorphism (RFLP) and 8-hydroxy deoxyguanosine (8-OHdG) concentration. Both CP and B(a)P caused increments in DNA fragmentation percentages, liver microsomal MDA, concentration of 8-OHdG and induced point mutation. Treatment of rats with either curcumin or chlorophyllin revealed lower DNA fragmentation percentages, liver microsomal MDA concentration, concentration of 8-OHdG and prevented induction of mutations, i. e., reversed the oxidative stress induced by CP and B(a)P and proved that they were capable of protecting rats against the oxidative damage evoked by these oxidants.

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