A peptides half-life affects: How often it is taken How long it stays active How long effects may last How long it may remain detectable Some peptides have half-lives measured in minutes or hours, while others can remain active for days
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Environmental stressors further modulated susceptibility: high ammonia levels damaged mucosal barriers and impaired tight junctions 107 , while thermal stress activated the hypothalamicpituitaryadrenal axis, inducing stress-related immunosuppression and weakening respiratory mucosal defense 108
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