Background/aim: Amitriptyline belongs to class of known as tricycline antidepresant (TCA) that is being used to treat anxiety and depressive states. It may help improve mood and feelings of well-being, relieve anxiety and tension, help to improve sleep and increase energy level. The study investigated the effect of amitriptyline on learning and memory using eighteen (18) healthy Swiss mice of both sexes weighing 16 – 25 g.
Method: The animals were divided into three (3) groups consisting of six (6) animals each. Group 1 served as the control group, Group 2 was administered with amitriptyline at a dose of 3 mg/kg body weight dissolved in 3 mls of distilled water, and used to test for learning, while Group three was also given similar administration like Group 2, but used to test for memory. All the animals were tested for learning and memory performance using Novel object recognition task and Morris water maze test.
Results: The results obtained from the Novel object recognition task showed that there was a significant decrease (p < 0.05) in total object approach in acquisition trial of amitriptyline treated group when compared to the acquisition trial of the control group. There was a significant decrease (p < 0.05) in retention trial of amitriptyline group when compared to retention trial in the control group. There was a significant decrease (p < 0.05) in total duration exploring objects in acquisition trial of amitriptyline treated group when compared to the acquisition trial of the control group. There was a significant increase (p < 0.05) in total duration exploring objects in retention trial of amitriptyline treated group when compared to the retention trial of the control group. There was a significant decrease (p < 0.05) in the index of habituation of amitriptyline treated group when compared to the control group. The index of discrimination showed a significant increase (p < 0.05) in amitriptyline treated group when compared to the control group and a significant decrease (p < 0.05) in amitriptyline group when compared to the control group. In the Morris water maze test, Day 1 – 3 were for acquisition training, day 4 – 6 reversal training, day 7 the probe trial day and day 8 the visible platform day. During acquisition training in the Morris water maze test, there was no significant difference in Swim latencies in day 1 and 2. However in day 3, there was a significant increase (p < 0.05) in swim latency of group compared to control group and a significant decrease (p < 0.05) in swim latency of amitriptyline treated group compared to the control group. During reversal training in day 1, 2 and 3, there was no significant difference in swim latency among the three groups. Results for the retention quadrant in the probe trials showed a significant decrease (p < 0.01) in amitriptyline group when compared to the control group.
Conclusion: Results suggest that amitriptyline impairs learning and memory functions.
I really liked the ease of submitting my manuscript in the HSPI journal. Further, the peer review was timely completed and I was communicated the final decision on my manuscript within 10 days of submission which is really appreciable. I strongly recommend all the scientists and researchers to submit their work in this journal”
“It was a delightful experience publishing my manuscript with the Clinical Journal of Obstetrics and Gynecology. They offered me lots of opportunities I never had from most publishing houses and their prompt services are greatly appreciated.”
Thanks you and your colleague for the great help for our publication. You always provide prompt responses and high quality of service. I am so happy to have you working with me.
Diana (Ding) Dai
“The choice to submit the forensic case study to the Journal of Addiction Therapy and Research was dictated by the match between the content and the potential readership. The publication process proved to be expedient and we were provided with constructive feedback from reviewers. The final article layout is attractive and conforms to standards. All-in-all, it has been a rewarding process.”
Ph.D, Boston University Department of Communication Sciences and Disorders and Knowledge Research Institute, Inc., 2131 Reflection Bay Drive, Arlington, Texas 76013, USA
Elisabeth H. Wiig
The service from the journal staff has been excellent.
My candid opinion is that the service you render is second to none. My favourite part is the prompt response to issue, really i value that.
Abiodun Akanbi Adeogun
I am very much pleased with the fast track publication by your reputed journal's editorial team. It is really helpful for researchers like me from developing nations.
I strongly recommend your journal for publication.
Badri Kumar Gupta
To the editorial team at HSPI and the Journal of Clinical Nephrology:
Thank you so much for your hard work and collaboration in bringing our article to life. Your staff was responsive, flexible, and communicative and made the process smooth and easy. Thank you!
Your journal co-operation is very appreciable and motivational. I am really thankful to your journal and team members for the motivation and collaboration to publish my work.
Assistant Professor, UCLAS Uttaranchal University, Dehradun, India
Your journal has accomplished its intended mission of providing very effective and efficient goals in dealing with submissions, conducting the reviewing process and in publishing accepted manuscripts in a timely manner. Keep up the great work and services that you provide.