Volume 16, Issue 5 (8-2013)                   J Arak Uni Med Sci 2013, 16(5): 8-18 | Back to browse issues page

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Jamshidi Fard A, Rafipour H, Faraji F. Effects of Melatonin on Visual Functioning of Patients with Multiple Sclerosis. J Arak Uni Med Sci 2013; 16 (5) :8-18
URL: http://jams.arakmu.ac.ir/article-1-2282-en.html
1- Department of Physiology, Clinical Neurophysiology Research Lab, Arak University of Medical Sciences, Arak, Iran , arjfard@yahoo.com
2- Department of Physiology, Arak University of Medical Sciences, Arak, Iran
3- Department of Neurology, Arak University of Medical Sciences, Arak, Iran
Abstract:   (8964 Views)

Background: Several clinical studies suggest that melatonin is a neuroprotective molecule in neurodegenerative disorders and it showed to be reduced in Multiple Sclerosis (MS) patients. MS also results in blurred vision, papillitis and diplopia. The main objective of the study was to asses the influence of Melatonin supplimentation on visual characteristics in patients with MS.

Materials and Methods: In a Quasi Experimental plan, approved by AUMS ethical Committee, 34 (9 males and 25 females) patients with stable MS were asked to voluntearly participate in the study. All subjects (Mean EDSS 3.14) were taking their routine medications. Visual funtions were evaluated by Visual Functioning Questionnaire (VFO-25) and standard Pattern Reversal Visual Evoked Potentials (PR-VEP) records. Serum Melatonin levels were also measured using an ELISA assay. Recordings were performed after a single dose and after taking 1 tablet every night for 14 days, at the day 16th.

Results: In all subjects, Serum Melatonin levels were significantly enhanced. VFQ scores also showed significat improvement. Except the change in N75 latencies of left eyes, VEP latencies of P100, N145 of both eyes and N75 of right eyes were significantly (p<0.05) reduced.

Conclusion: Our findings suggest significat improvements of visual symptoms of MS after daily intake of 3 mg Melatonin. The results calls for further studies and clinical trails before asking all MS patients to take Melatonin suppliment every night.

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Type of Study: Original Atricle | Subject: General
Received: 2013/04/28 | Accepted: 2013/07/28

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