– Effects Of Marijuana Smoking On Some Cardiac Enzymes In Albino Rats –
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ABSTRACT
This study was carried out to evaluate the effect of marijuana smoking on cardiac enzymes in Albino rat. A total of 18 albino rats were used in this study, they were grouped into three groups of six(6) rats each.
The first group received only feed and distilled water and they served as control while the second group received feed, water and 10mg of marijuana leaves and the third group received feed, water and 20mg of marijuana leaves.
The samples were collected by cardiopuncture with the aid of sterile syringe and needle and the statistical analysis was carried out using statistical packages for social sciences(SPSS) version 20·
The result obtained showed that the final body weight in the group 2 rats (99.4±4.48) and group 3 rats(85.4±3.68) was significantly decreased (P<0.05) when compared with the final body weight in group1 rats (202.0±15.3).
The final body weight in the group 2 rats (99.4±4.48) was significantly increased(P<0.05) when compared with the final body weight in the group3 rats(85.4±3.68).
The mean value of AST(13.0±6.0) , ALT(17.38±7.22), LDH(30.63±9.97) and CK-MB(47.38±13.13) was significantly increased(P<0.05) in the Group 2 rats when compared with the mean value of AST(7.38±4.47), ALT(10.88±3.38), LDH(20.88±10.09) and CK-MB(17.25±7.25) in the Group 1 rats .
The mean value of AST(25.83±9.42), ALT (30.17±12.86), LDH(47.83±), and CK-MB(66.0±17.93) in Group 3 rats was significantly increased(P<0.05) when compared with the mean value of AST(7.38±4.47), ALT(10.88±3.38), LDH(20.88±10.09) and CK-MB(17.25±7.25) in the Group 1 rats.
This finding showed that marijuana leaves could probably have a cardiopathologic effect and can cause many cardiovascular diseases.
TABLE OF CONTENT
Title page i
Certification ii
Dedication iii
Acknowledgement iv
Abstract v
Table of content vi
List of tables x
List of figures xi
CHAPTER ONE: INTRODUCTION
1.0 Introduction 1
1.1 Justification 2
1.2 Aim and Specific objectives 4
CHAPTER TWO: LITERATURE REVIEW
2.1 Origin of marijuana 5
2.1.1 Components of marijuana 6
2.1.2 Pharmacological response and metabolism of marijuana 7
2.1.3 Physical and psychological effects of marijuana 8
2.1.4 The medical value of marijuana 9
2.2 The Heart 10
2.2.1 Position of the Heart 10
2.2.2 Structure of the Heart 11
2.2.3 The interior of the Heart 14
2.2.4 Flow of blood through the Heart 15
2.2.5 Conductive system of the Heart 16
2.2.6 Nerve supply to the Heart 17
2.2.7 Blood pressure 18
2.3 Diseases of the Heart 19
2.3.1 Atherosclerosis and myocardial infarction 19
2.3.2 Heart failure 20
2.4 Cardiac Enzymes 20
2.4.1 Creatine Kinase 20
2.4.2 Lactate dehydrogenase 22
2.4.3 Transaminase 23
2.5 Marijuana smoking and the Heart 25
2.6 Marijuana smoking and Heart enzymes 26
CHAPTER THREE: MATERIALS AND METHODS
3.1 Animals 29
3.2 Drug procurement 30
3.3 Drug Dosage 30
3.4 Experimental design 30
3.5 Collection of blood 31
3.6 Laboratory procedures 31
3.7 Statistical analysis 37
CHAPTER FOUR : RESULT AND ANALYSIS
4.0 Result and Analysis 38
CHAPTER FIVE: DISCUSSION AND CONCLUSION
5.1 Discussion 42
5.2 Conclusion 43
5.3 Recommendation 44
REFERENCES 45
APPENDICES 50
INTRODUCTION
Marijuana is derived from the hemp plant cannabis sativa which is grown in many tropical areas in the world. It is a green or grey mixture of dried, shedded flower and leaves.
Marijuana is the most often used illegal drug in the United States. Most users roll loose marijuana into a cigarette called a “Joint” (William and Thomas, 2005).
Some users mix marijuana into food or use it to brew tea, hash users either smoke the drug in a pipe or mix it with tobacco and smoke it as cigarette.
Most researchers agreed that there is only one extract (sativa) with variant, while others believe that there are only three different extracts which include: Dranabinol (2,9-tetrahydrocannabinol), cannabinol and cannabidol (Agurell et al., 2000).
Due to its nature as a substance of abuse, it is unlawful to posses or supply cannabis. Thus it is difficult to obtain precise estimate about the extent of its use.
Data from 2013/2014 survey in Britain suggest that over 3.3 million people used cannabis that year (Chivite et al., 2014). From a New-Zealand birth cohort of 1265 children it was found that by the age of 21 nearly 70% has used cannabis (Fergusson and Hawood, 2011)
The heart is a muscular organ in all vertebrates which is responsible for pumping the blood by the repeated rhythmic contraction and involuntary muscles, it is supplied by the coronary circulation and enclosed by a sac known as the pericardium and it is surrounded by the lungs (Malton et al., 2009).
REFERENCES
Aird, W.C.(2011). “Discovery of the cardiovascular system: From Galen to William Harvey”. Journal Of Thrombosis and Haemostasis. 9(5):118-129.
Agurell, S.I., Dewy, W.L and Willet, R.W (2002). The Cannabinoids “Chemical pharmacologic and therapeutic Aspect” .2nd Edition .Academic press New York Pp 89
Aryana, A., Williams, M.A. and Johnson, D.C (2007). Marijuana as a trigger of cardiovascular Events. Journal of cardiology 118(2):141-144
Antz, M. (2008). “Electrical Conduction Between The Right And Left Atrium Via The Musculature Of The Coronary Sinus”. Circulation .98(17):1790-1795.
Birminghan, M.K. (2003). Reduction by 9-tetrahydrocannabinol in the blood pressure of hypertensive rats bearing regenerated Adrenal glands. Journal of pharmacology.148(1):169-171
Bonde, P.A. and Persson, P.B.(2014). “Form And Function In The Vascular System”.Acta Physiologyca.211(3):468-470.
Boucek, .R.J., Kasselberg, A.G., Boerth, R.C., Parrish, M.D. and Graham, T.P. (2002). “Myocardial injury in infants with congenital heart disease: evaluation by creatine kinase MB isoenzyme analysis”. American Journal of Cadiology. 50(1):129-135.
Carl A.B., David E.B. and Barbara G.S. (2015). Cardiac functions in: Teitz Fundamentals of Clinical Chemistry and Molecular Diagnostics .7th edition Elsevier, India Pp 683-689
Chivite-Matthew, N., Richardson, A.O. and Shea, J. (2014). Drug Abuse Declared findings from the 2013/214 British survey. Annals of Academic Science 120(5):160-170
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