Dietary supplementation of Pleurotus tuber regium in rat feed ameliorates metabolic and hematotoxicity induced by carbon tetrachloride

2020 ◽  
Vol 31 (5) ◽  
Author(s):  
Kenneth Obinna Okolo ◽  
Orish Ebere Orisakwe ◽  
Iyeopu Minakiri Siminialayi
Keyword(s):  
Oxidative Stress ◽  
Carbon Tetrachloride ◽  
Antioxidant Capacity ◽  
Olive Oil ◽  
The Body ◽  
Hematological Toxicity ◽  
Control Group ◽  
Free Access ◽  
Group I ◽  
And Oxidative Stress

AbstractPleurotus tuber regium, a wild edible mushroom can reduce free radical-mediated injury and oxidative stress induced by carbon tetrachloride (CCl4) via improvement of antioxidant capacity. This work evaluates the protective effects of this mushroom against the metabolic and hematological toxicity induced by CCl4. Sixty male Sprague Dawley rats were divided into six groups (n = 10). Group I received olive oil (3 mL/kg) i.p. twice weekly for 13 weeks, while maintaining free access to food and water ad libitum (negative control). Group II received 3 mL/kg (30% CCl4 in olive oil) injected i.p. twice weekly, while Groups III, IV, and V received 100, 200, and 500 mg wild edible P. tuber regium (33.3% in feed) daily in addition to 3 mL/kg CCl4 in olive oil injected twice weekly i.p. Group VI received olive oil (3 mL/kg) i.p. twice weekly for 13 weeks in addition to 500 mg P. tuber regium (33.3% in feed) daily. The body weight (b.w.), feed intake (FI), and water intake (WI) were obtained weekly, while the hematological indices and oxidative stress parameters were carried out shortly after necropsy on days 30, 60, and 90. Treatment with CCl4 significantly (p < 0.05) decreased the b.w., FI and WI, feed efficiency, ascorbic acid, α-tocopherol, and antioxidant enzymes, superoxide dismutase, catalase, total glutathione, and peroxidase, while increasing the oxidative stress as measured by malondialdehyde in CCl4 only group when compared with control. Supplementation of feed with P. tuber regium reversed the effects of CCl4. Pleurotus tuber regium ameliorated the CCl4-induced metabolic and hematotoxicity by improving the antioxidant capacity.

Evaluation of Salivary Antioxidants and Oxidative Stress Markers in Male Smokers

2019 ◽  
Vol 22 (7) ◽  
pp. 496-501
Author(s):  
Fatemeh Ahmadi-Motamayel ◽  
Parisa Falsafi ◽  
Hamidreza Abolsamadi ◽  
Mohammad T. Goodarzi ◽  
Jalal Poorolajal
Keyword(s):  
Oxidative Stress ◽  
Uric Acid ◽  
Free Radicals ◽  
Antioxidant Capacity ◽  
Cigarette Smoke ◽  
Total Antioxidant Capacity ◽  
The Body ◽  
Total Antioxidant ◽  
The Mean ◽  
And Oxidative Stress

Background: Cigarette smoke free radicals can cause cellular damage and different diseases. All the body fluids have antioxidants which protect against free radicals. Objective: The aim of this study was to evaluate salivary total antioxidant capacity and peroxidase, uric acid and malondialdehyde levels in smokers and a nonsmoking control group. Methods: Unstimulated saliva was collected from 510 males. A total of 259 subjects were current smokers and 251 were non-smokers. The levels of salivary total antioxidant capacity, uric acid, peroxidase and malondialdehyde were measured using standard procedures. Data were analyzed with t test and ANOVA. Results: The smokers were younger and dental hygiene index was higher than healthy nonsmoking controls. The mean total antioxidant capacity in smokers and nonsmokers was 0.13±0.07 and 0.21±011, respectively (P=0.001). Smokers had significantly lower peroxidase and uric acid levels than healthy controls. In addition, the mean malondialdehyde levels in the smokers and nonsmokers were 4.55 ±2.61 and 2.79 ±2.21, respectively (P=0.001). Conclusion: Cigarette smoke produces free radical and oxidative stress, causing many side effects. Salivary antioxidant levels decreased and malondialdehyde levels increased in smokers, indicating the high oxidative stress among smokers compared to nonsmokers. Cigarette smoke had deleterious effects on main salivary antioxidants levels.

scholarly journals GAMBARAN HISTOPATOLOGI HATI TIKUS WISTAR YANG DIBERIKAN JUS TOMAT (Solanum Lycopersicum) PASCA KERUSAKAN HATI WISTAR YANG DIINDUKSI KARBON TETRAKLORIDA (CCl4)

2013 ◽  
Vol 1 (3) ◽  
Author(s):  
Eka Sari Tappi ◽  
Poppy Lintong ◽  
Lily Loho
Keyword(s):  
Carbon Tetrachloride ◽  
Wistar Rats ◽  
Liver Cells ◽  
The Body ◽  
Tomato Juice ◽  
Control Group ◽  
Histopathological Changes ◽  
Group Iii ◽  
Group I ◽  
Group Ii

Abstract: Liver is the largest organ in the abdominal cavity. As the center of metabolism in the body, liver is potentially damaged by exposure of toxic substances, inter alia carbon tetrachloride (CCl4). Metabolism of carbon tetrachloride (CCl4) produces CCl3 free radicals that can damage the liver. In Indonesia, there are a lot of natural ingredients that have antioxidant properties, such as tomato. Lycopene in tomatoes contains antioxidant compounds that can prevent damages due to free radical. This study aimed to obtain liver histopathological changes of wistar rats fed with tomato juice after being induced of carbon tetrachloride (CCl4). This was an experimental study, using 10 wistar rats which were divided into 4 groups. Group I was the negative control; group II was induced with CCl4 0,05 cc/day and was terminated on day 6; group III was induced with CCl4 0,05 cc/day and was given tomato juice 3 ml/day, and terminated on day 13; group IV was induced by CCl4 0,05 cc/day, given regular pellets, and terminated on day 13. The results showed that group II had histopathological changes of the liver indicating fatty liver, meanwhile group III showed regeneration of nearly all liver cells. Conclusion: Administration of tomato juice after the induction of 3 ml carbon tetrachloride (CCl4) for 7 day showed regeneration of almost all liver cells. Keywords: histopathological changes of the liver, carbon tetrachloride, tomato juice.   Abstrak: Hati merupakan organ terbesar dalam rongga abdomen, dan pusat metabolisme tubuh dengan fungsi yang sangat kompleks dan sangat berpotensi mengalami kerusakan akibat terpapar oleh bahan-bahan toksik, salah satunya yaitu karbon tertraklorida (CCL4). Metabolisme CCl4 menghasilkan radikal bebas CCl3 yang dapat merusak hati. Di Indonesia terdapat  banyak sekali bahan-bahan alami yang mempunyai kandungan antioksidan, salah satunya yaitu tomat. Tomat mengandung senyawa likopen sebagai antioksidan yang dapat mencegah kerusakan jaringan akibat radikal bebas. Penelitian ini bertujuan untuk mendapatkan gambaran histopatologi hati tikus wistar yang diberi jus tomat pasca induksi karbon tetraklorida (CCl4). Metode penelitian ialah eksperimental. Sampel sebanyak 10 ekor tikus wistar yang dibagi dalam 4 kelompok. Kelompok I sebagai kontrol negatif; kelompok II diinduksi CCl4 0,05cc/perhari dan diterminasi hari ke-6; kelompok III diinduksi CCl4 0,05 cc/hari kemudian diberikan jus tomat 3ml/hari;  dan kelompok IV diinduksi CCl4 0,05 cc/hari kemudian diberikan pelet biasa dan diterminasi hari ke-13. Hasil penelitian menunjukkan pada pemberian CCl4 pada tikus wistar selama 5 hari terdapat gambaran morfologik perlemakan sel hati. Pemberian jus tomat dosis 3 ml pasca induksi karbon tetraklorida (CCl4) menunjukkan terjadinya regenerasi pada hampir seluruh sel-sel hati. Simpulan: Pemberian jus tomat dosis 3 ml pasca induksi karbon tetraklorida (CCl4) selama 7 hari menunjukkan regenerasi pada hampir seluruh sel-sel hati. Kata kunci: gambaran histopatologi hati, karbon tetraklorida, jus tomat.

scholarly journals Effect of Curcumin on Oxidative Stress in a Model of Turpentine Induced Acute Experimental Inflammation

2017 ◽  
Vol 45 (1) ◽  
pp. 65-74 ◽  
Author(s):  
Andrei CONEAC ◽  
Meda Sandra ORASAN ◽  
Daniel Corneliu LEUCUTA ◽  
Nicoleta DECEA ◽  
Miuta FILIP ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
High Performance ◽  
Control Group ◽  
Group Iii ◽  
Group I ◽  
Total Antioxidant ◽  
Experimental Inflammation ◽  
Group Ii

Curcumin, a natural phenolic compound is an anti-tumor agent with anti-inflammatory and anti-oxidant properties. The aim of this research was to evaluate oxidative stress levels, the antioxidant activity and Curcumin concentrations by high performance liquid chromatography (HPLC) in an acute experimental inflammation induced by Turpentine oil (intramuscular 0.6 mg kg-1 body weight) and to compare a prophylactic versus a therapeutic regimen of Curcumin (oral suspension of 150 mg Curcumin kg-1 rat weight). Sixteen adult male Wistar rats were assigned to four groups: Control, Group I (Curcumin only), Group II (Curcumin administration, then induced inflammation after 1 hour) and Group III (induced inflammation then Curcumin administration after 2 hours). Oxidative stress was assessed by measuring serum malondialdehide and carbonylated proteins, while systemic and local total antioxidant capacity was determined by ABTS. Local tissue changes (muscle, kidney, liver) were analysed using histopathology. Results showed that acute inflammation significantly increased lipid peroxidation in Groups II and III compared to Control and Group I. A significantly reduced total antioxidant capacity (ATBS) was present in serum and kidney in Group II, also in muscle and kidney in Group III. ABTS levels were significantly increased only in the liver tissue of the animals in Groups II and III with induced inflammation as compared to Group I. This study proved the potential of Curcumin in reducing oxidative stress in both prophylactic and therapeutic regimens.

The Effects of Melatonin and Propolis on Markers of Inflammation, Oxidative Stress, Clinical Outcomes, and Survival Rate in Patients with Primary Sepsis Hospitalized in Intensive Care Unit: A Randomized Clinical Trial

2020 ◽  
Author(s):  
Naseh Pahlavani ◽  
Alireza Sedaghat ◽  
Gordon A Ferns ◽  
Mahdie Mir ◽  
Mahsa Malekahmadi ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Clinical Trial ◽  
Survival Rate ◽  
Clinical Outcomes ◽  
The Body ◽  
Calorie Intake ◽  
Control Group ◽  
Control Groups ◽  
Markers Of Inflammation ◽  
And Oxidative Stress

Abstract Background: Systemic Inflammatory Response Syndrome (SIRS) that occurs under stressful conditions affecting all organs of the body. Previous studies have shown that propolis and melatonin have the potential to improve inflammation and oxidative stress, so the aim of this study was to investigate the effects of these supplements on SIRS treatment.Method: This was a randomized, controlled clinical trial in SIRS patients comprising 55 subjects that were randomly assigned to 3 intervention or control groups. In the 3 intervention groups, patients were treated with propolis alone (at dose of 1000 mg/day), propolis (1000 mg/day) plus melatonin (20 mg/day), and melatonin alone (20 mg/day) respectively, while there was no intervention in the control group. The inflammatory and oxidative stress markers and clinical outcomes were measured before and after of the intervention, also 28-day survival rate was assessed. Results: Propolis plus melatonin reduced serum interleukin 6 (p = 0.001) and CRP levels (p <0.001), and was associated with an increased gavage intake (p = 0.016). At the end of the study, there was no difference between the groups in the oxidative stress and hematological indices. In the propolis+melatonin group, the clinical outcomes were significantly improved (p <0.05). Also the SOFA score between the groups did not differ at any time, its changes was significant during the time (p>0.001). The average survival after 28 days of follow-up in the propolis, propolis+melatonin, melatonin and control groups were 24.08, 25.69, 22.05 and 19.42 days respectively, although this was not statistically significant (p=0.07).Conclusion and relevance: Supplementation with propolis+melatonin may help to improve clinical outcomes by reducing inflammation and was probably associated with an increase in the calorie intake, leading to an increase in the survival rate in SIRS patients, although more studies are necessary to prove these effects. Trial registration: IRCT20181025041460N1.

Inhibition of carbon tetrachloride–mediated apoptosis and oxidative stress by melatonin in experimental liver fibrosis

2008 ◽  
Vol 24 (4) ◽  
pp. 201-208 ◽  
Author(s):  
M Ogeturk ◽  
I Kus ◽  
H Pekmez ◽  
H Yekeler ◽  
S Sahin ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Carbon Tetrachloride ◽  
Radical Scavenger ◽  
Secretory Product ◽  
Protective Effects ◽  
Melatonin Treatment ◽  
Group I ◽  
Induced Apoptosis ◽  
Tissue Specimens ◽  
And Oxidative Stress

Melatonin, the principal secretory product of the pineal gland, functions as a potent antioxidant and free radical scavenger. Additionally, the antiapoptotic effect of melatonin has been observed both in vivo and in vitro. The aim of this experimental study was to investigate the protective effects of melatonin against carbon tetrachloride (CCl4)–induced apoptosis and oxidative stress in rat liver. Twenty-four male Wistar rats were divided in three equal groups. Group I was used as control. Rats in group II were injected every other day with CCl4 (0.5 mL/kg BW) for a month, whereas rats in group III were treated every other day with the same dose of CCl4 plus melatonin (25 mg/kg BW). At the end of the experiment, all animals were killed by decapitation and the livers were rapidly removed. Some of the liver tissue specimens were used for determination of malondialdehyde (MDA), superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) levels. The remaining tissue specimens were processed for immunohistochemical assessment, and the percentage rates of apoptotic liver cells stained with immunoreactive Bax were determined. Chronic administration of CCl4 significantly increased liver MDA contents, as an end product of lipid peroxidation, and also significantly decreased SOD and GSH-Px activities, emphasizing the generation of increased oxidative stress. Moreover, it caused an evident increase in apoptotic cells. Melatonin treatment significantly reduced MDA levels and elevated SOD and GSH-Px activities in rats received CCl4 plus melatonin. Furthermore, apoptotic changes caused by CCl4 were considerably decreased in these animals. The results of the present study indicate that melatonin treatment substantially prevents CCl4-induced apoptosis and oxidative damage in the liver. Thus, melatonin may serve as a drug for treating many clinical conditions that arise from inappropriate apoptosis.

scholarly journals Neuroprotective effects of Zingerone against carbon tetrachloride (CCl4) induced brain mitochondrial toxicity in Swiss albino mice

2018 ◽  
Vol 10 (2) ◽  
pp. 548-552
Author(s):  
Mohammad Firoz Alam
Keyword(s):  
Oxidative Stress ◽  
Carbon Tetrachloride ◽  
Antioxidant Enzyme ◽  
Brain Mitochondria ◽  
Control Group ◽  
Mitochondrial Toxicity ◽  
Swiss Albino Mice ◽  
Group I ◽  
Albino Mice ◽  
Group Ii

The present study targeted the brain mitochondria dysfunction in Swiss albino mice through carbon tetrachloride intoxication and its treatment with Zingerone. It is proposed that brain mitochondria is the main organelle responsible for oxidative stress by producing  reactive oxygen species (ROS). Swiss albino mice were divided into four groups; Group-1 was control; Group-2 was carbon tetrachloride (CCl4) toxic (1.5mg kg-1 bm i.p two days in a week.); Group-3 was pretreated with Zingerone (100 mg kg-1 b.m)  a day before  the administration of CCl4 and Group-4 was only Zingerone (100 mg kg-1 bm) given orally for 15days once in a day. At the end of the experiment mice were sacrificed and mitochondria were isolated from brain. Isolated brain mitochondria were further analyzed for oxidative stress marker. Thiobarbituric acid reactive substance (TBARS) content was increased significantly by CCl4 administration in Group-II as compared to the control Group-I, while the antioxidant (GSH) and other antioxidant enzyme GPx , GR, and CAT was depleted significantly in CCl4 treated Group-II as compare to control Group-I. Zingerone protected the  toxicity of brain mitochondria by reducing the lipid peroxidation and enhancing the antioxidant enzyme in Group-III and there was no significant changes were noticed in Group-IV as  compared to Group-I. Overall results showed the potential effects of Zingerone in protecting the neuronal cell loss by oxidative stress. Thus, the  present study indicated that the Zingerone may be used as the potential therapeutic tools for the prevention of CCl4 induced brain mitochondrial toxicity.  

scholarly journals Extra Virgin Olive Oil meningkatkan ekpresi reseptor estrogen α dan ketebalan Endometrium Rattus Norvegicus yang dipapar Rhodamin B

2018 ◽  
Vol 5 (3) ◽  
pp. 201-206
Author(s):  
Ita Noviasari ◽  
I Wayan Arsana Wiyasa ◽  
Hidayat Sujuti ◽  
Eviana Norahmawati
Keyword(s):  
Oxidative Stress ◽  
Estrogen Receptors ◽  
Olive Oil ◽  
Rattus Norvegicus ◽  
Endometrial Thickness ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
The Body ◽  
Control Group ◽  
Rhodamin B

Abstract: Rhodamin B is harmful to the body because it is proven can increase the oxidative stress on various reproductive chain. Rhodamin B contains compounds of chlorine (Cl), is dangerous and halogen compounds are reactive. Damage to the hypothalamus will interfere with the secretion of FSH and LH cause the follicle ripening so distracted that result in a decrease in the hormone estrogen. The hormone estrogen plays an important role in the menstrual cycle and proliferation of the endometrium. This research aimed to prove the effect of Extra Virgin Olive Oil (EVOO) with the expression of estrogen receptors α and endometrial thickness of Rattus norvegicus exposed by rhodamin B. The design used true experimental with an approach of post test only control group design. The research used white rat (Rattus norvegicus wistar strain) as the sample. The results showed that EVOO could become an alternative to prevent oxidative stress due to exposure of rhodamin B.Keywords: Rhodamin B, Extra Virgin Olive Oil (EVOO), Estrogen receptors α, the thickness of the Endometrium

scholarly journals Experimental Evaluation of Prophylactic and Therapeutic Antioxidant Potential of Trimetazidine in Carbon Tetrachloride Induced Oxidative Stress in Rats

2021 ◽  
Author(s):  
Vijay Haribhau Mate ◽  
Vijaya Anil Pandit ◽  
Pradnya Hemant Padalkar ◽  
Chetan Shrirang More ◽  
Kapil S Khade
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Activity ◽  
Carbon Tetrachloride ◽  
Treated Group ◽  
Hepatoprotective Activity ◽  
Antioxidant Potential ◽  
Oxidative Stress Marker ◽  
Control Group ◽  
Group Iii ◽  
Group I

Introduction: Exposure to various drugs and chemicals lead to oxidative stress. Carbon Tetrachloride (CCl4) produces rise in oxidative stress leading to hepatic damage. The drug Trimetazidine (TMZ) shows hepatoprotective activity but its mechanism is not known. The present study would help in establishing antioxidant activity of TMZ as probable mechanism. Aim: To evaluate the antioxidant potential of TMZ in CCl4 induced oxidative stress when given prophylactically/therapeutically in rats. Materials and Methods: An experimental animal study was conducted on 80 adult Wistar rats of either sex (weight-150 to 200 gm) from March 2010 to December 2010 in Bharati Vidyapeeth Medical College, Pune, Maharashtra, India. Randomly, all animals were grouped into 10 equal groups. Group i was normal control (received only water). To induce oxidative stress CCl4 (0.5 mL/kg/d i.p.) was given to all the animals of Group ii to Group x for seven days. The TMZ was given in two doses, TMZ1 (5 mg/kg orally for Group iii and vii) and TMZ2 (10 mg/kg orally for Group iv and viii). Positive standard control (Group v and Group ix) received Liv.52 (1 mL/kg orally). Group vi and Group x received combination of TMZ1 (5 mg/kg orally)+Liv.52 (1 mL/kg orally). Drug treatment was given to animals in group iii, iv, v and vi for 1-14 days (preventive group) and in group vii, viii, ix and x from day 8 to day 14 (therapeutic group). On 15th day, rats were sacrificed and dissected for collection of liver. Part of the livers was homogenised to assess oxidative stress marker enzymes Malondialdehyde (MDA), Superoxide Dismutase (SOD) spectrophotometrically. Statistical analysis was done with one- way Analysis of Variance (ANOVA) followed by post-hoc analysis (Dunnett’s test) using GraphPad Prism 5.0 software. Results: Trimetazidine (5 mg/kg and 10 mg/kg) significantly reduced MDA levels and increased SOD levels when compared with CCl4 treated group suggested antioxidant activity. Combined administration of Liv.52 and TMZ1 also reduced oxidative stress and increased antioxidant activity. Conclusion: Results of the present study suggested that increased oxidative stress was significantly attenuated by drug TMZ in dose dependant manner when compared with the CCl4 group. The antioxidant potential of prophylactic and therapeutic administration of TMZ was comparable. The increased antioxidant effect by Liv.52+TMZ1 combination was only due to the additive antioxidant effects of Liv.52 and TMZ or any other mechanism was involved, needs to be further evaluated.

scholarly journals Greater Endothelial Apoptosis and Oxidative Stress in Patients with Peripheral Artery Disease

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Andrew W. Gardner ◽  
Donald E. Parker ◽  
Polly S. Montgomery ◽  
Danuta Sosnowska ◽  
Ana I. Casanegra ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Growth Factor ◽  
Antioxidant Capacity ◽  
Peripheral Artery Disease ◽  
Control Group ◽  
Peripheral Artery ◽  
Endothelial Apoptosis ◽  
Control Subjects ◽  
Artery Disease ◽  
And Oxidative Stress

We compared apoptosis, cellular oxidative stress, and inflammation of cultured endothelial cells treated with sera from 156 subjects with peripheral artery disease (PAD) and 16 healthy control subjects. Furthermore, we compared circulating inflammatory, antioxidant capacity, and vascular biomarkers between the two groups. The PAD group had a 164% higher value for endothelial cell apoptosis (P<0.001) and a 62% higher value for endothelial cellular reactive oxygen species production (P<0.001) than the control group. Furthermore, the PAD group had lower systemic antioxidant capacity measured by hydroxyl radical antioxidant capacity activity (P<0.001), higher inflammatory and vascular measures of high-sensitivity C-reactive protein (P<0.001), interleukin-8 (P<0.001), serum amyloid A (P<0.001), vascular cell adhesion molecule-1 (P<0.001), adiponectin (P<0.001), apolipoprotein B (P=0.013), apolipoprotein CIII (P=0.035), lower vascular endothelial growth factor-A (P<0.001), and hepatocyte growth factor (P<0.001) than the control group. Subjects with PAD have greater endothelial apoptosis and oxidative stress than control subjects with low burden of comorbid conditions and cardiovascular risk factors. Furthermore, subjects with PAD have lower systemic antioxidant capacity and angiogenic measures and higher circulating inflammatory parameters.

Evaluation and correlation of oxidative stress and haemato-biochemical observations in horses with natural patent and latent trypanosomosis in Punjab state of India

2018 ◽  
Vol 63 (4) ◽  
pp. 733-743 ◽  
Author(s):  
Rahul Parashar ◽  
Lachhman Das Singla ◽  
Mayank Gupta ◽  
Suresh Kumar Sharma
Keyword(s):  
Oxidative Stress ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Group Iii ◽  
Group I ◽  
Group Ii ◽  
Latent Group ◽  
Biochemical Indices ◽  
And Oxidative Stress

Abstract The haemato-biochemical indices and oxidative stress markers in horses naturally infected with Trypanosoma evansi were evaluated by analyzing the level of these parameters between T. evansi infected (microscopically positive patent group and PCR positive latent group) and infection free horses. To compare the hemato-biochemical indices and oxidative stress indicators, horses were divided into three categories based on diagnostic test employed and positive results obtained. These included Romanowsky stained slide positive group (Group I; n = 6), PCR positive group (group II; n = 28) and negative control group (group III, n = 30), revealing parasitologically positive patent, molecular positive latent and disease free status of horses. A significant reductions in total erythrocytes count (TEC, P = 0.01), haemoglobin (Hb, P = 0.01) and packed cell volume (PCV, P = 0.04) was noticed both in group I and group II while significant neutrophilia and lymphocytopenia was observed in group I when compared to negative control group. Substantial increase in creatinine (CRTN, P = 0.032) and gamma glutamyl transferase (GGT, P = 0.012) in group I while significant decrease in glucose (GLU, P = 0.04) and iron (Fe, P = 0.01) were noticed in both group I and group II in comparison to group III. A significant difference in lipid peroxides (LPO, P = 0.01) with highest level in patent group I (15.33 ± 0.53) followed by PCR positive latent group (14.09 ± 1.66) indicates higher lipid peroxidation in erythrocytes and oxidative stress in decreasing order when compared with infection free control horses (9.83 ± 0.97). Catalase (CAT, P = 0.01) was significantly lower in parasitological (0.82 ± 0.14) and molecular positive cases (1.27 ± 0.35) in comparison to control group (3.43 ± 0.96). The levels of superoxide dismutase (SOD, P = 0.01), reduced glutathione (GSH, P = 0.01) and ferric reducing antioxidant power (FRAP, P = 0.01) were significantly lower in parasito-molecular positive cases as compared to infection free control horses. An inverse correlation of RBC count with LPO and GSH and a direct correlation with catalase, SOD and FRAP was revealed. Overall, the observed substantial decreases in the oxidative parameters like catalase CAT, SOD, GSH and FRAP activities with remarkably elevated levels of LPO indicate high exposure of erythrocytes to oxidative damage in T.evansi infected horses.

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