1.Efficacy and Safety of Anti-CGRP Monoclonal Antibodies in Prevention of Chronic Migraine: A Bayesian Network Meta-analysis
Mundot Puliappadamb HARIDAS ; Amruta TRIPATHY ; Rituparna MAITI ; Anand SRINIVASAN
Clinical Psychopharmacology and Neuroscience 2024;22(1):23-32
Due to the unmet needs in the management of migraine, a primary headache, and disabling disorder, the past decade has focused on developing monoclonal antibodies (mAbs) against the calcitonin-gene-related peptide (CGRP) as migraine prophylactic agents. The objective of the study was to evaluate the efficacy and safety of various anti-CGRP mAbs in the prevention of chronic migraine. Network meta-analysis (NMA) was performed using the Bayesian framework to estimate the efficacy and safety of mAbs after performing a literature search in PubMed, MEDLINE, Cochrane database, and International Clinical Trial Registry Platform (ICTRP). The outcomes calculated were in terms of mean difference (MD) or odds ratio (OR) with a 95% credible interval (95%CrI). Network graphs were constructed and node-split analysis was done to analyze the inconsistency. The NMA included a total of 10 clinical trials.Galacanezumab (120 mg) (MD: −2.7; 95%CrI: −4.8 to −0.83) was found to be better than other mAbs in terms of the difference in mean migraine days (MMD). Fremanezumab quarterly dose administration showed the best response (OR: 2.9; 95%CrI: 1.9 to 4.6) in terms of responder rate. Eptinezumab was found to be safer (OR: 0.88; 95%CrI: 0.61− 1.3) as compared to other mAbs in terms of the rate of adverse events. Fremanezumab (quarterly) ranked better in terms of response rate, and eptinezumab was found to be the safest in the prophylactic management of migraine.Galacenequmab was better at reducing MMD. Further studies are needed to evaluate the long-term safety, efficacy, and use of mAbs in migraine patients.
2.Evaluation of Acute and Chronic Effects of D-Galactose on Memory and Learning in Wistar Rats.
Bharti CHOGTU ; Avinash ARIVAZHAHAN ; Sushil Kiran KUNDER ; Amod TILAK ; Ravi SORI ; Amruta TRIPATHY
Clinical Psychopharmacology and Neuroscience 2018;16(2):153-160
OBJECTIVE: D-galactose has been commonly used in rodent models to induce accelerated effects of aging, including those on learning, memory, and muscular tone and coordination. This is normally seen on chronic administration of D-galactose. However, there is minimal suggestive evidence on the short-term effects of the same. The aim of the study was to study the acute and chronic effects of D-galactose on learning and memory in Wistar rats. METHODS: Twenty four male Wistar rats were randomly assigned to the control, standard (rivastigmine), oral D-galactose (200 mg/kg/day) and subcutaneous D-galactose (200 mg/kg/day) for a total duration of 8 weeks. Effects on learning and memory were assessed at 2 weeks, 4 weeks and 8 weeks by Morris water maze model and passive avoidance testing. RESULTS: Both oral and subcutaneous D-galactose showed positive effects on learning and memory on acute dosing, whereas this beneficial effect was lost during chronic dosing. CONCLUSION: Short-term administration of D-galactose showed positive effects, while long-term administration nullified these effects.
Aging
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Alzheimer Disease
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Galactose*
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Humans
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Learning*
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Male
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Memory*
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Rats, Wistar*
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Rivastigmine
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Rodentia
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Water