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Antiinfective agents affecting cognition: a review
1Department of Pharmacology and Toxicology, Ain Shams University Cairo, Egypt. amani@ims.com.eg
Abstract:
The adverse effects of antimicrobial, antiviral and anthelmintic agents on cognitive function have attracted substantial research interest in the last three decades. There are sporadic individual reports of negative effects on cognition by penicillin, amoxycillin, cloxacillin, cephalothin, cephazolin, cefuroxime, ceftazidime, tobramycin, doxycycline, chloramphenicol, lomefloxacin, pefloxacin, isoniazid, amphotericin B, acyclovir, chloroquine, clioquinol, metronidazole, sulfasalazine among other antimicrobial agents. Antimicrobial and antiprotozoal agents reported to affect consciousness in particular are amoxycillin, cloxacillin, ticarcillin, cephalothin, cephazolin, ceftazidime, cefuroxime, tobramycin, lomefloxacin, pefloxacin, amphotericin B, acyclovir, chloroquine, clioquinol, and metronidazole. The relationship between some other antimicrobial, antiviral and anthelmintic agents and cognition is yet to be clearly established due to the existence of controversial reports. Few antimicrobial, antiviral or anthelmintic agents have been found to be devoid of any effect on memory. A few others may enhance cognitive performance. This review focuses on this issue, summarizing the published clinical and experimental studies relevant to this area of research and discussing its clinical implications. Suggested mechanisms responsible for the adverse effects of different antimicrobial, antiviral, and anthelmintic agents on cognitive function are reported. Future recommendations point to immense research opportunities to investigate the cognitive profile of newly discovered antimicrobial agents.
Insights
Many antimicrobial, antiviral, and anthelmintic drugs can negatively impact cognitive function, including memory and consciousness. Research is ongoing to understand these effects and explore potential cognitive enhancers.
Area of Science:
- Neuroscience
- Pharmacology
- Infectious Diseases
Background:
- Antimicrobial, antiviral, and anthelmintic agents are widely used to treat infections.
- Growing evidence suggests these agents can adversely affect cognitive functions.
- Research interest in drug-induced cognitive impairment has increased over the past three decades.
Purpose of the Study:
- To review and summarize published clinical and experimental studies on the effects of antimicrobial, antiviral, and anthelmintic agents on cognitive function.
- To discuss the clinical implications of these cognitive effects.
- To explore suggested mechanisms underlying these adverse effects.
Main Methods:
- Comprehensive literature search of clinical and experimental studies.
- Analysis of reported cases and experimental findings on drug-induced cognitive impairment.
- Synthesis of data on specific agents and their impact on cognition.
Main Results:
- Numerous antimicrobial, antiviral, and anthelmintic agents have been associated with adverse cognitive effects, particularly impacting consciousness and memory.
- Some agents show controversial or no effects on cognition, while a few may enhance cognitive performance.
- Specific drugs like penicillin, doxycycline, and acyclovir are among those reported to affect cognition.
Conclusions:
- The relationship between certain antimicrobial, antiviral, and anthelmintic agents and cognitive function is complex and requires further investigation.
- Understanding the mechanisms of drug-induced cognitive impairment is crucial for clinical practice.
- Future research should focus on the cognitive profiles of new antimicrobial agents and potential cognitive-enhancing strategies.
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