Key result
Experimental hyperthyroxinemia cuts defecation boluses ~43% during Porsolt testing in middle-aged rats.
Why the study?
Type 2 myocardial infarction cases with intact coronary arteries and concomitant electrolyte disturbances require further clinical characterization.
Absolute Event Rate: 28.2% vs 49.4%
p-value: p=0.017
Experimental hyperthyroxinemia exerts a multidirectional effect on spontaneous behavior in rats depending on age, increasing inertness in young rats while tending to increase the mobility of nervous processes in middle-aged rats.
May indicate age-dependent behavioral effects of hyperthyroxinemia in rats; leaves open translational relevance to human thyroid disorders.
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Rodynskyi et al. (2026) studied Hyperthyroxinemia (n=20). L-thyroxine vs. Intact control animals was evaluated on Number of defecation boluses during Porsolt test in middle-aged rats (p=0.017). Experimental hyperthyroxinemia significantly reduced the number of defecation boluses in middle-aged rats during the Porsolt test compared to controls (28.2 vs 49.4, p=0.017).
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