|Year : 2018 | Volume
| Issue : 3 | Page : 209-213
Evaluating therapeutic potential of coriander seeds and leaves (Coriandrum sativum L.) to mitigate carbon tetrachloride-induced hepatotoxicity in rabbits
Muhammad Jawad Iqbal1, Masood Sadiq Butt1, Aamir Shehzad1, Muhammad Asghar2
1 National Institute of Food, Science & Technology, Faculty of Food, Nutrition and Home Sciences, University of Agriculture, Faisalabad, Pakistan
2 Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
|Date of Submission||08-Oct-2017|
|Date of Decision||10-Nov-2017|
|Date of Acceptance||04-Dec-2017|
|Date of Web Publication||28-Mar-2018|
Muhammad Jawad Iqbal
National Institute of Food, Science & Technology, Faculty of Food, Nutrition and Home Sciences, University of Agriculture, Faisalabad
Source of Support: None, Conflict of Interest: None
Objective: To evaluate the hepatic and renal protective potential of coriander seeds and leaves using animal feed model. Methods: Coriander seeds- and leaves-based sauces were administrated to normal (Study I) and carbon tetrachloride (2 mL/kg B.W.)-induced hepatotoxic rabbits (Study II). Hepatic and renal biomarkers like aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, superoxide dismutase and catalase were measured. Results: Coriander leaves-based sauce exerted more decline (P<0.05) in serum aspartate aminotransferase, alanine aminotransferase and alkaline phosphatase levels in the study II as 18.32%, 19.91% and 21.24%, respectively. While, hepatic superoxide dismutase and catalase levels were raised significantly (P<0.05) in both studies. Renal parameters also depicted positive impact by the provision of developed sauces. Conclusions: Coriander seeds and leaves based sauces are effective in alleviating the hepato/renal toxicity. The hepatoprotective effect of coriander leaves is more pronounced as compared to coriander seeds.
Keywords: Coriander seeds, Coriander leaves, Hepatoprotective potential, Hepatotoxicity, Rabbits
|How to cite this article:|
Iqbal MJ, Butt MS, Shehzad A, Asghar M. Evaluating therapeutic potential of coriander seeds and leaves (Coriandrum sativum L.) to mitigate carbon tetrachloride-induced hepatotoxicity in rabbits. Asian Pac J Trop Med 2018;11:209-13
|How to cite this URL:|
Iqbal MJ, Butt MS, Shehzad A, Asghar M. Evaluating therapeutic potential of coriander seeds and leaves (Coriandrum sativum L.) to mitigate carbon tetrachloride-induced hepatotoxicity in rabbits. Asian Pac J Trop Med [serial online] 2018 [cited 2018 Jul 18];11:209-13. Available from: http://www.apjtm.org/text.asp?2018/11/3/209/228435
| 1. Introduction|| |
Consumption of junk foods along with environmental toxicants have raised the incidence of numerous life threatening ailments like hepatic and renal toxicity as well as it can also trigger inflammatory pathways leading to various oncogenic events. The convergent scientific evidences have focused on the consumption of natural foods as therapeutic remedy against these maladies. The dietary approach towards health promotion and disease prevention has convinced the researchers to develop paradigm shift towards healthy interventions such as designer/functional foods.
Amongst herbs, coriander (locally known as “dhanya”) is known for its therapeutic properties in the Indo-Pak subcontinent. Its scientific name is Coriandrum sativum L. Coriander seeds possess essential/volatile oil. Meta-analyses have stated that chief constitutes of coriander essential oil are alcoholic monoterpenes, amongst linalool is prominent. Moreover, fresh coriander leaves and stem part contain polyphenols like phenolic acids, flavonoids (especially quercetin) and essential oil to some extent,.
Various kinds of xenobiotics harm human body by the production of free radicals. Elaborated research and development in the field of pharmaceutics have revealed that reactive oxygen and nitrogen species are the root cause of numerous dysfunctions including hepatotoxicity, diabetes, cardiovascular disorders, inflammations and cancers in the human body. Normally, preset internal defense mechanism in the body is responsible to scavenge free radicals. Nevertheless, several environmental toxins and pollutants encourage the generation of reactive oxygen species to such a level where it becomes difficult for the inherent endogenous defense system to counteract their adversities. For the purpose, antioxidants from external dietary sources strengthen the endogenous defense system to mitigate free radicals-induced oxidative stress and associated ailments.
In this context, polyphenols and linalool of coriander can reinforce enzymatic (superoxide dismutase, SOD; catalase, CAT) and non- enzymatic (glutathione, GSH) defense mechanism of the body. Alongside, participates positively in modulating liver functioning enzymes especially aspartate aminotransferase (AST) and alanine aminotransferase (ALT), thereby lowers the detrimental effects of free radicals in carbon tetrachloride-induced hepatotoxic animals. Considering aforementioned facts, the present research project was designed to elaborate therapeutic potential of coriander seeds and leaves against hepatotoxicity using animal model.
| 2. Materials and methods|| |
2.1. Procurement of research material
Fresh coriander leaves and seeds were purchased from local market. Coriander leaves were washed to remove adhered dirt and impurities. Furthermore, coriander seeds were also cleaned from impurities. Afterwards, the raw materials were used to develop coriander-based sauce. Diagnostic kits used were purchased from Sigma-Aldrich, Bioassay (Bioassays Chemical Co. Germany) and Cayman Chemicals (Cayman Europe, Estonia).
2.2. Product development
In the product development phase, coriander sauces were prepared using different concentrations of coriander leaves and seeds (40% and 60%, respectively). The concentrations were selected on the basis of preliminary physicochemical and hedonic assessment.
2.3. Ethical approval
Ethics approval was given by the head of the National Institute of Food Science and Technology, University of Agriculture Faisalabad, Pakistan; by reviewing the suggestions of Animal Experimentation Ethics Committee, University of Agriculture Faisalabad. Animal experiments were conducted in accordance with the instructions for the care and use provided by the committee and instructed by the university.
2.4. Animal modeling
For efficacy trials, 60 New Zealand white rabbits were purchased and acclimatized for a period of 7 d by feeding on basal diet at animal room of National Institute of Food Science & Technology, Faculty of Food, Nutrition & Home Sciences, University of Agriculture, Faisalabad, Pakistan. During whole experimental period of 12 weeks, the animal room was maintained at a constant temperature of (23±2) °C and relative humidity of about (55±5)% by employing humidifier, with light and dark cycle of 12 h each (NIH Publications No. 8023, revised 1978). All animal experimental procedures were performed from 8 a.m. to 10 a.m.
The aim of animal study was to explore the hepatoprotective potential of coriander seeds and leaves sauces. Purposely, two studies were designed: study I (normal rabbits) and study II (hepatotoxic rabbits). In the study II, carbon tetrachloride was injected intraperitoneally (2 mL/kg B.W.) to induce hepatotoxicity 24 h prior to termination of trial. Each study consisted of three groups based on given diet, i.e., control diet (S0), coriander seeds sauce (S1) and coriander leaves sauce (S2). In all studies, each animal group was given the respective treatment through gastric tube (15 mL/kg B.W.), throughout the experimental phase. Rabbits were housed in clean large cages and fed on green leafy vegetation and allowed tap water ad libitum. At the end of trial blood samples were collected through cardiac puncture in normal and EDTA-coated tubes, separately. Analysis of serum samples were then carried out by using Microlab- 300 (Merck, Germany). Moreover, hepatic and renal antioxidant enzymes were also assessed; tissue homogenate was collected from liver and kidney tissues.
2.5. Serum specific hepatic biomarkers
Serum specific markers of liver, AST and ALT, were estimated by using Sigma kits 59-50 and 58-50, respectively, using dinitrophenylhydrazene method. Furthermore, alkaline phosphatase (ALP) was estimated by Alkaline Phosphates-DGKC method, alongside, bilirubin was assessed following the methods described by Park et al..
2.6. Oxidative stress biomarkers in liver tissues
Oxidative stress markers in liver tissues were evaluated by measuring the levels of tissue specific endogenous enzymes like SOD, CAT and lipid peroxidation in terms of malondialdehyde (MDA) level,.
2.7. Serum specific renal biomarkers
Renal biomarkers of serum include level of urea, uric acid and creatinine. These were analyzed according to the methods described by Kassem et al. .
2.8. Oxidative stress biomarkers in kidney tissues
Tissue specific oxidative stress biomarkers of kidney are similar to hepatic tissue specific parameters, i.e., SOD, CAT and lipid peroxidation,.
2.9. Statistical analysis
The findings of current scientific study were subjected to statistical analyses to find out the level of significance and efficacy of various parameters. For the purpose, statistical software Statistix 8.1 was employed. Furthermore, Microsoft Excel (version 2013) was utilized for handling, summarization of data. For statistical analysis, one way ANOVA under Completely Randomized Design (CRD) was employed to assess the level of significance trailed by comparison of means via Tukey’s honest significant difference (HSD) test.
| 3. Results|| |
3.1. Serum specific hepatic makers
Serum AST level was non-significantly varied in the study I (normal rabbits) from (32.33±1.52) in the S0 control to (30.04±1.32) IU/L in the S2 treatment. However, it momentously (P<0.05) changed in the study II (hepatotoxic rabbits). The serum AST level of hepatotoxic rabbits (study II) was found maximum in the control group (S0), followed by the S1 treatment and S2 treatment [Table 1]. In the study II, maximum reduction of 18.32% was noticed owing to S2 treatment followed by S1 treatment (14.70%).
|Table 1: Effect of coriander seeds and leaves sauces on hepatic biomakers in normal rabbits (Study I) and hepatotoxic rabbits (Study II).|
Click here to view
Serum ALT level of normal rabbits was affected non-significantly by treatments, whilst, in hepatotoxic rabbits ALT level was significantly (P<0.05) affected by treatments. In the study II, the serum ALT level of S0 group was higher as compared to the S0 group of study I, indicating the acute hepatic stress. Though, the administration of S1 and S2 significantly (P<0.05) lowered the level of serum ALT to (85.25±4.54) and (81.02±4.92) IU/L, respectively [Table 1]. The reduction of serum ALT was significant (P<0.05) in study II (15.73% in the S1 treatment and 19.91% in the S2 treatment).
Like the above mentioned parameters serum ALP level was also non-significantly effected in the study I, whilst, it significantly (P<0.05) changed in the study II owing to the provision of functional diet. In hepatotoxic rabbits it was maximum in the control group followed by the S1 and S2 treatments [Table 1]. The percent reduction was highly significant (P<0.05) in the case of hepatotoxic rabbits (17.26% in the S1 treatment and 21.24% in the S2 treatment).
Serum bilirubin level showed significant variations (P<0.05) among different diet groups in the study II by the injection of carbon tetrachloride. In the study II, the level of serum bilirubin showed a decreasing behavior and lowered owing to the consumption of S1 and S2 up to 17.31% and 20.19%, correspondingly [Table 1].
3.2. Tissue specific hepatic biomarkers
Statistical analysis (F value) indicated that in the study I the level of SOD was altered non-momentously among designed diet groups. Furthermore, the SOD level expressed significant (P<0.05) variations owing to different diet treatments in hepatotoxic (study II). It is evident from the means [Table 1] that in the study I, S0 (control group) exhibited minimum SOD level of (264.19±13.47) U/g tissue, whilst, it get elevated to (270.28±13.40) and (275.43±12.66) U/g tissue in the S1 and S2 treatments, respectively. It can clearly be noticed that intra-peritoneal injection of carbon tetrachloride lowered the level of SOD to (179.64±9.05) U/g tissue in the S0 group of study II. Treating the groups with S1 and S2 enhanced the level of SOD momentously to (218.97±9.10) and (231.09±12.01) U/g tissue, correspondingly [Table 1].
The level of catalyase in study I was affected non-significantly by administration of different treatments. However, the level of CAT significantly (P<0.05) varied due to diet treatments in the study II. It is obvious from the mean values that in hepatotoxic rabbits it was (738.53±36.18) U/g tissue in the S0 group. However, the S1 and S2 elevated the level of CAT momentously (P<0.05) to (872.97±40.15) and (904.65±43.42) U/g tissue, correspondingly [Table 1]. In the study II, the level of CAT showed an increasing behavior and raised significantly (P<0.05) owing to the consumption of S1 and S2 up to 18.20% and 22.49%, correspondingly.
3.2.3. Lipid peroxidation
Lipid peroxidation in different studies was measured by employing the TBARS assay (thiobarbituric acid reactive substances assay) which quantities the end product of lipid peroxidation (MDA). Means regarding MDA level in the study I showed that in the control group it was (36.12±1.62) nmol/(L•g tissue), while in the S1 and S2 groups it was (35.16±1.59) and (34.98±1.62) nmol/(L•g tissue), respectively. In the study II, maximum MDA level was measured in the S0 group followed by the S1 and S2 groups [Table 1].
3.3. Renal biomarkers
3.3.1. Serum urea level
Mean values indicated that in the study I (normal rabbits) serum urea level [(0.64±2.01) mg/dL] was not significantly affected in control group (S0), while, it was (40.02±1.85) and (39.41±1.89) mg/dL in the S1 and S2 groups, correspondingly. Moreover, the serum urea level of hepatotoxic rabbits (study II) was found maximum in the control group (S0), which lowered in groups taking the S1 and S2 [Table 2].
|Table 2: Effect of coriander seeds and leaves sauces on renal biomakers in normal rabbits (Study I) and hepatotoxic rabbits (Study II).|
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3.3.2. Serum uric acid level
Serum uric acid level has been considered as an essential parameter to access the extent of renal toxicity in individuals. It is evident from [Table 2] that in the study II, serum uric acid level was measured maximum in the S0 group trailed by the S1 and S2 groups. A significant (P<0.05) decrease of 17.39% and 21.26% was observed in the hepatotoxic rabbits (study II) in the S1 and S2 groups as compared to the S0 (control diet) group.
3.3.3. Serum creatinine level
In the study I different treatments showed non-significant effect on the serum creatinine level. However, it was significantly (P<0.05) affected by treatments in the study II. The means regarding the serum creatinine level showed that the creatinine level in the control group (S0) of study I was (0.98±0.04) mg/dL. Additionally, the S1 and S2 groups also exhibited almost similar levels of creatinine. In the study II, the injection of carbon tetrachloride raised the serum creatinine level up to (1.16±0.05) mg/dL in the S0 group, though, this elevated level showed a declining trend in the groups administrated with S1 and S2 [Table 2].
3.3.4. Renal SOD level
It can be inferred from the statistical analysis (F value) that in the study I the level of SOD in renal tissues was altered non- momentously among designed diet groups. Furthermore, the SOD level expressed significant (P<0.05) variations owing to different diet treatments in the hepatotoxic rabbits (study II). It is evident from the means that in the study I, S0 (control group) exhibited minimum SOD level of (287.70±14.06) U/g tissue, whilst, SOD level increased to (291.35±15.24) and (293.79±13.81) U/g tissue in the S1 and S2 groups, respectively [Table 2]. It can clearly be noticed that intra- peritoneal injection of carbon tetrachloride lowered the level of SOD to (232.83±13.58) U/g tissue in the S0 group of study II. Treating the groups with S1 and S2 enhanced the level of SOD momentously to (261.97±14.02) and (268.38±12.45) U/g tissue, correspondingly [Table 2].
3.3.5. Renal CAT levels
It is obvious from the means that in the study I, S0 (control group) exhibited minimum CAT level of (635.25±29.22) U/g tissue, whilst, CAT level get elevated to (642.19±31.58) and (649.29±32.06) U/g tissue in the S1 and S2 groups, respectively [Table 2]. It can clearly be noticed that intra-peritoneal injection of carbon tetrachloride lowered the level of CAT to (426.54±18.67) U/g tissue in the S0 group of study II. Treating the groups with S1 and S2 raised the level of CAT significantly (P<0.05) to (464.15±22.28) and (478.80±23.59) U/g tissue, correspondingly [Table 2].
3.3.6. Renal lipid peroxidation
Means regarding MDA level in the study I showed that in the control group it was (42.25±1.94) nmol/(L•g tissue), while in the S1 and S2 groups it was (40.48±1.87) and (39.56±2.06) nmol/(L•g tissue), respectively. In the study II, maximum MDA level was measured in the S0 group followed by the S1 and S2 groups.
| 4. Discussion|| |
Liver functioning test assist to estimate the health of ones liver by evaluating the level of proteins (albumin/total protein), liver enzymes (AST, ALT and ALP) and bilirubin in blood. In current investigation increment in the serum ALT level was 117% indicating the liver damage of rabbits.
This research elucidated the hepatoprotective perspectives of coriander to attenuate liver injury induced by carbon tetrachloride in rabbits. Carbon tetrachloride is a renowned hepatotoxic agent and is generally utilized to evaluate the hepatoprotective potential of various bioactive moieties and drugs. Administration of coriander leaves protects the hepatocytes from the adverse effects of carbon tetrachloride. The current results are in conformity with previous findings that demonstrated hepatoprotective potential of coriander leaves extracts in carbon tetrachloride-induced hepatotoxic rats. The serum ALT level of control group was (36.28±1.5) IU/L, which get elevated to (135.2±12.4) IU/L by intraperitoneal injection of carbon tetrachloride. Administration of coriander leaves extract decreased the level of ALT to (84.6±7.4) and (54.7±4.3) IU/L, respectively.
Kassem et al. noticed that serum AST, ALT and ALP levels of control rats were raised significantly by carbon tetrachloride treatment. Nevertheless, incorporation of 20% and 40% coriander in diet lowered the levels of AST, ALT and ALP. Coriander treatment also seems to be an effective tool to counter the lipid peroxidation resulting TBARS approached to normal. It was hypothesized that restoration of TBARS may be owing to increase in the activity of antioxidant enzymes including SOD, CAT, glutathione reductase, glutathione peroxidase and glutathione-S-transferase.
The findings of instant investigation are in harmony with Sreelatha et al. who demonstrated that TBARS in control group was (1.29±0.395) nmol MDA/mg protein which increased to (1.79±0.14) nmol MDA/mg protein by carbon tetrachloride injection. Coriander stem and coriander leaf extract at a dose rate of 200 mg/kg lowered the level of TBARS to (1.43±0.23) and (1.29±0.40) nmol MDA/mg protein, respectively.
Current findings regarding the effect of coriander on levels of SOD, CAT and lipid peroxidation are in agreement with the findings of Sreelatha et al.. SOD level of control group of rats was (75.81±1.95) mg liver protein, which lowered to (47.84±0.50) mg liver protein owing to carbon tetrachloride intoxication. A significant elevation in the level of SOD occurred by oral administration of coriander stem and coriander leaf at individual dosage of 100 and 200 mg/kg [(58.16±0.72) & (79.93±0.65) mg liver protein and (63.51±0.58) & (86.19±0.72) mg liver protein, respectively].
It has an established fact that kidneys plays an important role in regulating various essential body processes by modulating numerous chemicals. The waste products includes urea, creatinine and uric acid. Carbon tetrachloride not only causes hepatotoxicity but it also imparts nephrotoxicity as indicated by a noticeable elevation in the levels of serum urea, creatinine and uric acid. Coriander consumption refurbished the endogenous antioxidant enzymes. The effect of coriander was dose depended and 40% coriander noticed to impart more pronounced renal protective effects as compared to 20% coriander.
It can be clinched in the nut shell that renal protective effects of coriander against carbon tetrachloride is owing to numerous mechanisms amongst the most important is the antioxidant activity the courtesy of polyphenolic constituent of coriander.
The findings of current investigation exhibited that carbon tetrachloride intoxication can damage both hepatic and renal tissues as explored by an abrupt elevation of their biomarkers. The toxicity also lowered the endogenous antioxidant enzymes, whilst, treatment with coriander considerably lowered the harmful effects of carbon tetrachloride by reserving antioxidants and scavenging free radicals. It can be established that consumption of coriander seed and leaves enriched diet can protect humans against hepato-renal toxicity induced by various xenobiotics. Furthermore, it can be concluded from the above investigation that coriander leaves possess better hepatoprotective potential as compared to coriander seeds.
Conflict of interest statement
The authors declared that they have no conflict of interest.
The authors would like to acknowledge the support of Higher Education Commission of Pakistan and University of Agriculture, Faisalabad for technical assistance.
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[Table 1], [Table 2]