Research Article | Open Access

Duaa Abd Al-Azem , Karim H. Al-Derawi and Sahar A.A. Malik Al-Saadi

Department of Biology, College of Science, University of Basrah, Basrah, Iraq.
J Pure Appl Microbiol, 2019, 13 (1): 505-515 | Article Number: 5419
Received: 08/12/2018| Accepted: 10/01/2019 |Published: 11/02/2019
Abstract

The essential oils were isolated from dried Syzygium aromaticum L. seeds by Cleavenger aperture extraction, and fractions were identified by gas chromatography-mass spectrometry (GC-MS). 53 components were detected in Syzygium aromaticum. The components were mainly 21 sesquiterpenes (39.62 %), eight monoterpenes (15.09%), onediterpene (1.88%). The leading components specific in the essential oil was eugenol (64.74 %), caryophyllene (14.36 %), 3-Allyl-6-methoxyphenyl acetate (13.28 %) and 1,4,7, Cycloundecatriene, 1,5,9,9-tetramethy (2.55 %). Biochemically, Results found that the rats treated with (MTX) revealed a significant increase in AST, ALT and ALP levels in compare with controls. Clove essential oil recorded a significant decrease in AST, while, there was a decrease in all enzymes levels in serum of rats related to (MTX) and clove essential oil groups in comparison with control group. The results showed that the administration of clove essential oil significantly decreased elevate levels of ALT, AST and ALP. On the other hand, Histological examination of liver sections of rats treated with (MTX) showed several changes included infiltration of inflammatory cells, congestion, hyperplasia, cytoplasmic vacuolation, degeneration and necrosis. The results showed a normal liver structure in rats that treated with (MTX) and clove essential oil. Rats treated to (MTX) showed sever histopathological changes in the kidney tissues such as necrosis, hemorrhage, degeneration and inflammatory cells. While, in rats treated with (MTX) and essential clove oil a few changes in the kidney tissues were observed.

Keywords

Methorexate, Syzygium aromaticum, clove oil, eugenol, GC-MS. Histological

Introduction

Methotrexate (MTX) is a folic acid antagonist has been widely used to treat cancer patients with cancer specially all undergo chemotherapy as it considered to be a cytotoxic agent1. In addition, MTX is mainly used as an antitumor agent for childhood, all treatment and in rheumatoid arthritis patients2. Furthermore, MTX used treat inflammation and various autoimmune diseases such as juvenile idiopathic arthritis, rheumatoid arthritis and psoriasis3,4. Another side, MTX has many undesirable effects including liver, kidney and gut tissues of laboratory treated with MTX5. In several studies, the damage caused  by MTX is listed in many studies, it cause germ cell depletion, loss of spermatozoa as well as distrusting the seminiferous tubules of the testes, decreased sperm count, and sperm DNA damage post treated6. In order to reduce the harmful side effects of MTX many researcher focused on isolating botanical compounds to reduce these effects. Syzygium aromaticum L. found normally in tropical areas, specially tropical America and Australia, and it is cultivated in the India, islands of Tanzania, Madagascar, Indonesia, Comoros Islands, Sri Lanka and the south of China7. The clove tree is an ever green that grows to a heightend ranging from 10-20 m, possess stems up to 80 cm long and large, entire, opposite leaves up to 30 cm wide, flowers and many groups of terminal clusters. The color change starts with the flower buds as they become green gradually until they turn into dark brown or dusty red, the fruit is a drupaceous dehiscent capsule8. The essential oil obtained by the dried flower buds of clove has been used since ancient times in traditional medicine, commonly  used for flavoring pastry, special sauces and condiments. Moreover, several parts of the plant such as leaves and buds are used in cooking, food processing, pharmacy, perfumery and cosmetics9. Syzygium aromaticum has been some components are useful in bacterial and fungal infections10-12. Preliminary studies suggest that clove oil importance in a chemopreventive role, relevant  in cases of lung, skin and digestive cancers 13 to clarify the most  essential oil from Syzygium aromaticum and to evaluate its protective role on rats with (MTX) induced toxicity. The aim of this study is to identify with components of the essential oil from Syzygium aromaticum to evaluate its protective role on rats with (MTX) induced toxicity.

Materials and Methods

Plant material
This research was carried out at the University of Basrah, College of Science, Department of Biology, Iraq. The GC-MS Chromatography carried at the University of Basrah, College of Agriculture, Iraq. The fresh buds of clove were collected from Basrah, Iraq were directly used for oil extraction.

Preparation of samples
One hundred gram  of the sample was ground a grinder for 20 second. The small pieces were homogenized  for 3 min to 40-mesh size. The air-dried sample of clove were pulverized to get the powdered form.

Essential oils Extraction
Essential oils were separated from water distillation for 4 h at 100°C by using a Clevenger-type apparatus. The essential oil  was collected in sealed container to prevent any  evaporation. Furthermore, the collected oil was dried by anhydrous sodium sulphate and stored in dark glass contain for analysis.

GC-MS analysis
The oil quality was assessed through analysis by combined gas chromatography and mass spectrometry. GC-MS analysis was carried out using an Shimadzu GC-QP 2010 Ultra gas chromatograph, The temperature of the GC oven set from 40°C to 250°C at a rate of 4.3°C/min. Helium was used as carrier gas; inlet pressure was 100.0 kPa; linear velocity was 48.1 cm/sec. Column flow was 1.78 mL/min, Injector temperature: 250°C; injection mode: split. MS scan conditions: source temperature, 200 °C; interface temperature, 250 °C; Detector Gain, 0.70 kV +0.10 kV; Scan speed, 1666. Start 50 m/z, End 800 m/z.The relative percentage of the crude essential oil components was expressed as percentage by peak area normalization.

Identification of essential oil compounds
The  essential oil  compounds were identified according to retention period and the location  of extracted oil  in compare with a standard compound, were we compare  the spectra of  the essential oils compounds with the spectra of a known one from the NIST library (2005).

Experimental Design
Experimental design were approved by College of Science/ Basrah University. Thirty  adult healthy rats were divided into three groups randomly as follow:-

Group I : Healthy rats  (n= 10) no treatment.

Group 2 : Treated with MTX (intraperitoneal injection, 0.125 mg/kg ) (n=10).

Group 3: Treated with (Clove + MTX) (n=10) oral administration, 500 mg/kg one daily for 7 days, followed by  MTX (intraperitoneal injection, 20 mg/kg) on day 3  continuously administered for 3  successive days. At the end of experiment, rats were subjected to blood collection under anesthesia by ether inhalation, the blood collected directly from the heart, centrifuged and serum separated which stored at -20°C for biochemical analysis.

Biochemical analysis
The blood sample was collected from all the experimental rats in a disodium EDTA tubes. The samples were centrifuged at 3000 rpm for 20 min. The plasma was separated and immediately processed for biochemical estimations. The plasma sample was subjected to analysis of biochemical parameters such as aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), estimation using commercial biochemical kits and Reflotron, Plus machine by Roche, USA.

Histopathological examination
After scarification the liver and kidney tissue were excised by thoracic section, the liver and kidney pieces were excised quickly, and fixed within 10% neutral formalin  for 24 hours. Then, routine histological examination were done , and histological sections  were stained with Hematoxylin and Eosin stains and examined by Olympus CH-2 light microscope.

Statistical analysis
The data was reported as mean ± SD. analysis of variance (ANOVA) followed by multiple comparisons using SPSS test to compare all groups against control. Results were considered statistically significant at p < 0.05.

Results and Discussion

Essential oil of clove is a colorless or light yellowish fluid extract from dried flower buds by steam distillation. The oils were  analyzed by GC–MS and the qualitative and quantitative compositions are presented in (Table 1). The results obtained by GC/MS analysis showed that clove essential oil contains 53 components. It is showed the major components in whole clove bud oil contains eugenol (64.74 %), caryophyllene (14.36 %), eugenyl acetate (13.28 %) and 1,4,7 -Cycloundecatriene, 1,5,9,9-tetramethy (2.55 %), this essential oil represents ten compound monoterpenes (18.86%), 21 compound sesquiterpenes (39.62%) and one compound diterpene was (1.88%) (Figure 1; Table 1).


Fig. 1. A typical gas chromatogram of the constituents of essential clove oil.

Table 1
Compounds identified in the essential oil of Syzygium aromaticum seeds using gas chromatography mass spectrometry (GC-MS).

Peak
Component
Formula
Retention time
Content (%)
1
m-Cymene
C10H14
6.955
0.01
2
Eucalyptol
C10H18O
7.084
0.05
3
2-Heptanol, acetate
C9H18O2
7.298
0.02
4
1,4-Cyclohexadiene, 1-methyl-4-(1-methylel)
C10H16
7.592
0.01
5
Unknown
8.200
0.02
6
1-(2-d-Benzoyl-3,5-di-O-toluyl-beta-d-ribofuranosyl
C37H34N2O7
8.250
0.01
7
1,6-Octadien-3-ol, 3,7-dimethyl-
C10H18O
8.353
0.03
8
Neryl nitrile
C10H15N
8.594
0.01
9
Unknown
9.423
0.07
10
Benzoic acid, ethyl ester
C9H10O2
9.542
0.02
11
3-Cyclohexen-1-ol, 4-methyl-1-(1-methylethl)
C10H18O
9.685
0.01
12
Methyl salicylate
C8H8O3
9.890
0.16
13
Benzene, 1-methoxy-4-(1-propenyl)-
C10H12O
9.988
0.02
14
Unknown
10.042
0.01
15
Propanal, 2-methyl-3-phenyl-
C10H12O
10.691
0.21
16
Phenol, 4-(2-propenyl)-, acetate
C11H12O2
10.872
0.31
17
p-Propenylanisole
C10H12O
11.366
0.81
18
Alpha –Cubebene
C15H24
12.230
0.03
19
Eugenol
C10H12O2
12.755
64.74
20
Cyclohexane, 1-ethenyl-1-methyl-2,4-bis(1-methylethenyl)
C15H24
12.917
0.10
21
Benzene, 1,2-dimethoxy-4-(2-propenyl)
C11H14O2
13.080
0.09
22
Caryophyllene
C15H24
13.372
14.36
23
Naphthalene, 1,2,3,4,4a,5,6,8a-octahydro-7- methyl- 4- methylene-1-(1- methylethyl)
C15H24
13.433
0.04
24
3-Oxabicyclo [4.2.0] oct-5-ene, endo-8-methy –exo-8-(2-propenyl)
C11H16O
13.681
0.05
25
1,4,7-Cycloundecatriene, 1,5,9,9-tetramethy
C15H24
13.781
2.55
26
Naphthalene, 1,2,3,4,4a,5,6,8a-octahydro-7-methylene-1-(1- methylethyl)
C15H24
14.009
0.17
27
1,6-Cyclodecadiene, 1-methyl-5-methylene -8-(methylethyl)
C15H24
14.088
0.06
28
Naphthalene, decahydro-4a-methyl-1-methylene-7-(1-methylethenyl)
C15H24
14.201
0.06
29
Naphthalene, 1,2,3,4,4a,5,6,8a-octahydro-4a,8-dimethyl-2-(1-methylethenyl)
C15H24
14.302
0.13
30
1,3,6,10-Dodecatetraene, 3,7,11-trimethyl-,
C15H24
14.398
0.26
31
Gamma –Elemene
C15H24
14.483
0.04
32
Eugenyl acetate
C12H14O3
14.721
13.28
33
Naphthalene, 1,2,3,4,4a,7-hexahydro-1,6-dimethyl-4-(1-methylethyl)
C15H24
14.845
0.03
34
2-Oxatricyclo [4.3.1.0(3,8)] decane
C9H14O
15.142
0.02
35
Acetic acid, 4a-methyl-octahydro-1-oxacyclopropal[d] naphthalene-7-yl ester
C13H20O3
15.209
0.04
36
1,6,10-Dodecatrien-3-ol, 3,7,11-trimethyl-
C15H26O
15.267
0.02
37
Caryophyllenyl alcohol
C15H26O
15.473
0.06
38
Caryophyllene oxide
C15H24O
15.558
0.72
39
(+)-Epi-bicyclosesquiphellandrene
C15H24
15.676
0.03
40
Epiglobulol
C15H26O
15.775
0.07
41
12-Oxabicyclo [9.1.0] dodeca-3,7-diene, 1,5,5,8- tetramethyl
C15H24O
15.847
0.08
42
4,8,13-Cyclotetradecatriene-1,3-diol, 1,5,9- trimethyl-12-(1-methylethyl)
C20H34O2
15.952
0.08
43
Tetracyclo [6.3.2.0(2,5).0(1,8)] tridecan -9-ol,4,4-dimethyl
C15H24O
16.100
0.33
44
Androstan-17-one, 3-ethyl-3-hydroxy-, (5-alpha)
C21H34O2
16.258
0.23
45
Aromadendrene oxide-(2)
C15H24O
16.377
0.24
46
2′,3′,4′ Trimethoxyacetophenone
C11H14O4
16.490
0.04
47
Curlone
C15H22O
16.608
0.03
48
Benzyl Benzoate
C14H12O2
17.071
0.10
49
Benzoic acid, 2-hydroxy-, phenylmethyl ester
C14H12O3
17.653
0.02
50
Hexadecanoic acid, methyl ester
C17H34O2
17.858
0.05
51
l-(+)-Ascorbic acid 2,6-dihexadecanoate
C38H68O8
18.027
0.03
52
6-Octadecenoic acid, methyl ester, (Z)-
C19H36O2
18.583
0.03
53
cis-9-Hexadecenal
C16H30O
18.742
0.02

Biochemical analysis
Results found that the rats treated with (MTX) revealed a significant increase in AST, ALT and ALP levels in compare with control (Table 2). (P<0.05) values of ALP, AST and ALT were 61.29%, 60.06% and 35.50% respectively in the rats treated with MTX as compared to the controls. Clove essential oil recorded a significant (p<0.05) decreased in AST, while there were decreased in all enzymes concentration in serum of rats related to (MTX) and clove essential oil groups compared to control rat’s treatment (Table 2).
Table 2 
Serum levels of live enzymes in experimental groups

ALT SD) ± mean)
AST SD) ± mean)
ALP SD) ± mean)
Treatment
29.07 ± 3.685cd
24.09 ± 18.140b
± 15.010 b41.38
Control
35.50 ± 19.701ef
60.06 ± 2.934 c
± 37.059 c61.29
MTX
32.00 ± 18.295d
17.32 ± 8.292 a
± 24.144 b42.32
Syzygium aromaticum
33.59 ± 13.505de
26.61 ± 18.344b
33.67 ± 57.450a
MTX and Syzygium aromaticum
6.003
5.479
6.015
R.L.S.D.

*Values are mean± SEM.

Histological study
The animals treated with clove essential oil showed no significant changes in histological features of liver (Fig. 2 A-F). While liver sections from (MTX) treated, rats revealed that there were several changes compared to control liver group. These changes included infiltration of inflammatory cells around the central vein, congestion and infiltration cells with the decomposition of hepatic cell edge, hyperplasia in the bile ducts and mitotic activity with hepatocytes nuclei. Observations indicated to cytoplasm vacuolation, degeneration in endothelial of vessels and bile ducts epithelial. As well as hepatocytes necrosis and nuclei disintegration (Fig. 2 A-F). Alterations in livers of group treated with MTX and clove essential oil was less compared to the livers from rats group treated with (MTX) and including renewing hepatocyte, no signs of inflammation and the tissue more resemble to the normal structure (Fig. 2, G).

Histological examination on liver sections of the group treated with a MTX drug and Syzygium aromaticum volatile oil showed that presence of regenerated hepatocytes, as seems more regular as plates and organized that seems normal and with less inflammatory cells compared to rats treated by drug only (Fig. 2, H).



Fig. 2. HE stained liver sections from rats A- Control (showing normal tubular epithelial cell, no necrosis noted) B-D high dose MTX: B- infiltration of inflammatory cells around the central vein: C- congestion and infiltration cells with the decomposition of hepatic cell edge:D- hyperplasia in the bile ducts: E- vascular cytoplasm of cells, degeneration in endothelial of vessels and bile ducts epithelial: F- hepatocytes necrosis and nuclei disintegration: G-I, group treated with Methotrexate and clove essential oil: G-no presence inflammatory in the liver tissue: H- presence of renewable hepatocytes: I- Kupffer appeared normal but can see thickness of nuclei . CV in A, B = Central vein (Magnifications, all 470 X).

Kupffer cells appeared normal but can see thickness of nuclei in some cells compared to rats with induced toxicity (Fig. 2, I).More regular urinary tubules, normal cortex and glomerulus. Results also clarified the changes in kidney sections and showed that renal tissues of the control group had normal structure with no evidence of pathological changes (Fig. 3A, B). In the group treated with MTX, kidney tissue showed necrosis in some urinary tubules, renal glomeruli and hemorrhage with the degeneration of Bowman glomerulus (Fig. 3,C),0.5 mg/ kg occurred decomposition of urinary tubules decomposition of Bowman’s capsule, lobulated glomerulus and haemosidrin deposition (Fig. 3, D). The inflammatory response appeared as infiltration neutrophil, non-cellular material deposition and hemorrhage (Fig.3, E), increase in adipose tissue and necrosis in some proximal tubules (Fig. 3, F). Histological sections of the kidney of animals treated with essential oil for plant illustrate few changes comparing with group treated by MTX, including the cells organized around the normal shape and the absence of inflammatory cells (Fig.3,G,H).


Fig. 3. Photomicrograph of HE stained kidney sections from rats A- B: Control showing normal tubular epithelial cell, no necrosis noted; C- necrosis in some tubule urinary, renal glomeruli and bleeding with the degeneration of Bowman glomerulus; D- decomposition of urinary tubules decomposition of Bowman and lobulated glomerulus and Haemosidrin; E- the inflammatory response and hemorrhage; F- increase in adipose tissue and necrosis in some tubule urinary; G- H the cells organized around the normal shape and the absence of inflammatory cells. (Magnifications, all 470 X).

Low and high doses of (MTX) caused hepatic and renal toxicities and functions causing changes in of rat’s visceral organs3,14. While, treatment with clove essential oil showed significant protective effect on methotrexate and hence in liver enzymes, this may indicate that the reduction in renal filtration rate can be due to toxic effects of methotrexate in kidney (Table 2).Results proved that prophylactic treated of clove essential oil exhibits protective effects on MTX induced toxicity lead to increased AST, ALT and ALP which considered as hepatotoxicity, impaired liver function and biochemical indicators of liver damage, these findings have been agreed with 15,16, which reported that MTX is a folic acid antagonist that can cause unpredictable serious side effects. MTX recorded a significant increased (p<0.05) in ALP, ALT and AST, while treatment of MTX with clove essential oil noticed decreased in ALP, ALT and AST enzyme (Table 2). The results,  revealed that clove essential oil proved to have a significant  level of protection against MTX effects on  liver. The high levels of ALT, AST and ALP in MTX-treated rats is associated with the increased damage by MTX 17. While treated clove essential oil 200 + MTX group, serum activities of ALT, AST, ALP was decreased; the rats treated with Methotrexate has a toxic effect in liver when it provoked a distinguished increase in ALT and AST activities. Our results suggest that MTX can move the liver and causing abnormal serum levels of liver enzymes that agreed with (18), and using essential oil of cloves with MTX causes protection agent. The significant inhibition of these metabolically active enzymes by MTX is an indication of the generation of free radicals and ROS that further affect the cell pathways. Clove essential oil was possible act as antioxidant phytochemicals that can scavenge the toxic free radicals as well as, the increase of serum levels may be due to the cytotoxic effect of MTX on liver cells, The elevated serum levels are results from cytotoxic effect and the elevated activities of the serum mirror the leakage in permeability of  the plasma membrane,  and causing the movement of high quantity of these enzyme to blood serum which in turn, is associated with cell death 19.  Almotabagani et al.13 showed that binds that MTX to the hydrofolatereductase that lead to the blocking of the synthesis  amino acid and nucleic acid, this blockage lead to damage of both organelles and plasma membranes which interfere with their function, allowing enzyme leakage depending upon the degree of hepatic damage. Moreover, methotrexate is also known to cause elevation of hepatic transaminases20. Griffith et al.21 observed that folate supplementation can reduce the incidence of elevated liver enzymes during MTX treatment it can induce abnormalities in liver function. Moreover, Alexander et al.22 indicate the increase of ALP level is correlated with the severity of the toxic effect of MTX and ALT is one of the best indicators of liver necrosis, on the other hand, increase in liver enzyme levels and increased rate of inflammatory cell infiltration in methotrexate treated animals and this may contribute in the development of hepatorenal damage may be due to mitogen-activated protein kinas (MAPK)23,24. The current study has found histopathological changes in the liver tissues in rats treated with different doses of extract treatedrats there were congestion, inflammations around central vein, cytoplasmic vacuolations (Hydropic degenerations) in the hepatocytes located towards the periphery of the hepatic lobules around the central veins in higher doses of extract treated rats (around central veins in which their nuclei. Other researchers showed  similar including congestion and degenerations in liver cells and necrosis after four weeks from treatment25. The disturbance in lipid inclusions and fat metabolism cause the fluid or lipids to accumulate26. Swayeh et al16 found that the oxidative tissue  damage caused by MTX increase lipid oxidation in both liver and kidney declined level of antioxidant enzymes. MTX-induced toxicity is featured by a significant increase in of  pro- inflammatory cytokines27, the induced damage in renal tissue characterized by subsequent neutrophil infiltration and oxidative stress contribute28. Many pathological alterations extending to cellular damage occur, in case that the balance between oxidants and anti-oxidants is not preserved in tissues 29. The mechanisms of MTX proposed to inhibit purine and pyrimidine synthesis and amines accumulation30. The renal damage caused by MTX involve two mechanisms, the precipitation of MTX  in renal tubules, will induce tubular injury, in addition ,  MTX induce a transient decrease  in glomerular alteration rate after each dose 31. Many researchers report the plant extract contain chemical component can interred with metabolism process and reported the role of certain flavonoids, triterpenoids and steroids in hepatoprotection against hepatotoxins. The presence of these certain compounds in Syzygium aromaticum is the reason of  the protective effects of  rats liver. Our results showed that the essential oil contains ten compounds, monoterpenes (18.86%), 21 compound sesquiterpenes (39.62%) and 1 compound diterpene was (1.88%) (Fig. 1; Table 1). Our results is in agreement with the precedent studies32. Phytochemical studies showed the highest concentration of clove essential oil was of eugenol, eugenyl acetate and ג- caryophyllene  which agreed with previous experiments33. The presence of eugenol and caryophyllene within the essential clove oil make it useful in both herbal and modern medicines, because of their antibacterial, antifungal, anti-inflammatory capacities, insecticidal and antioxidant effects. Moreover, they are  traditionally used in food industry  as flavoring and antimicrobial agent34. Regarding  Eugenol, which is the main component of clove oil, involves in inner secretory columnar cell layer and desquamation and the exerts adverse effects on secretory activity of seminal vesicle 35, spermicidal activity on ejaculated human spermatozoa36. Also confirmed the antinociceptive activity of eugenol predominantly inhibits the peripheral pain mechanism37. Clove oil is traditionally used as atherapeutic agent to treat many symptom such as anti-phlogistic, anti-vomiting, analgesic, anti-spasmodic, anticarminative, kidney reinforcement, antiseptic, diuretic, odontalgic, stomachic and tonicardiac38. Alma et al.32 showed that the essential oil of clove contained 87% eugenol, 8.01 % eugenyl acetate and 3.56% b-Caryophyllene. Hossainet al.33 reported eleven chemical components were identified in the essential oil isolated from, the isolated components representing eugenol 51.51%, caryophyllene 36.20%, b- caryophyllene (4.26%), acetyleugenol 2.64% and carvacrol 2.42%. Safrudin et al.33 reported that clove oil contains eugenol (72.40%), b-caryophyllene (12.61%) and eugenyl acetate (9. 59%. Nassar et al.39 Identified sixteen volatile compounds, the main components were eugenol (71.56 %) and eugenol acetate (8.99 %). Clove considered to be are important drug with different applications like antioxidant, antifungal, antiviral, antibacterial, anti-inflammatory, antithrombic, antipyretic, analgesic, anticonvulsant, antimycotic, insecticidal, antimutagenic, antiulcerogenic etc. Eugenol, ethyl acetate and caryophyllene are the major components and it is responsible for the activities above. The area of developing efficacious formulations using clove or eugenol have a great potential7. On the other hands, studies with polyphenolic compounds have revealed a  potential antioxidants used for the treatment and prevention of oxidative stress40. The curative nature of clove extract against MTX toxicity by restore hepatocytes function and prevent the lost  of  proteins and albumin via the kidney as a results of  nephroprotection19. Furthermore, the present study showed that clove essential oil administration with MTX results in oxidative stress decrease and free radical mediated tissue injury as a result of its ability to search for free radicals and this is one of the major antioxidant mechanisms to hinder the chain reaction of lipid peroxidation. Furthermore, clove essential oil that revealed anti-oxidant activity and exhibit an inhibitory effect on lipid peroxidation, which cause a decline in the inflammatory response strength.

CONCLUSION

To summaries, the clove essential oil can be used as a main source of natural eugenol isolation which  has an antimicrobial properties. Our data revealed the role of oxidative stress in MTX-induced renal toxicity in rats. Syzygium aromaticum may give protection from damage through the reduction of oxidant products  and enhance the antioxidant activity, the modulation of oxidative stress with Syzygium aromaticum could be an effective factor of  reducing renal impairment that is caused by MTX therapy. More researches must be conducted to understand how can  Syzygium aromaticum  prevent renal damage. The protective effects of the essential oil that was seen in the present study may be due to this component. Our results showed that many effects of Syzygium aromaticum on kidney, liver and enzymes. The hepatoprotective effects  may be due to the scavenging of anti-oxidants and free radicals, the enzymatic and nonenzymatic anti-oxidants levels were inhibited in liver and kidney.

Acknowledgments

We gratefully acknowledge the all kind of technical supports from the Department of Biology, College of Science, University of Basrah, Basrah, Iraq.

Conflict of Interest

The authors declare that they have no conflict of interest.

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