Publications by authors named "R H Fitch"
Understanding the origins of novel, complex phenotypes is a major goal in evolutionary biology. Poison frogs of the family Dendrobatidae have evolved the novel ability to acquire alkaloids from their diet for chemical defense at least three times. However, taxon sampling for alkaloids has been biased towards colorful species, without similar attention paid to inconspicuous ones that are often assumed to be undefended.
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- FOXP2 is known for its role in human speech and language, while FOXP1 is less understood but is linked to language development and autism spectrum disorders (ASD).
- The study investigated the effects of removing the Foxp1 gene in mice using a specific driver that affects the cerebellum and some midbrain neurons, assessing various motor and social behaviors.
- Findings indicate that Foxp1 is crucial for communication development and that its absence leads to noticeable motor and vocal deficits, emphasizing its potential relevance to understanding neurodevelopmental disabilities in humans.
Introduction: Caffeine and theophylline are methylxanthines and nonselective adenosine antagonists commonly used to treat apnea of prematurity. Both human and animal data suggest that xanthines also have clinically important long-term neuroprotective effects in the presence of inflammation in the perinatal period as seen following hypoxic-ischemic brain insults. Moreover, these protective effects appear to be more robust when administered shortly (<48 h) after preterm birth.
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- The study evaluated sport-related concussion protocols in NCAA Division 1 football programs during the 2018 season through a cross-sectional survey.
- Out of 65 programs surveyed, 71% responded, revealing a high prevalence of baseline postural and neurocognitive testing, but only moderate use of vestibular assessments.
- Findings indicated varied approaches to concussion prevention and treatment, highlighting the need for standardized protocols across programs.
Objective: Psychological symptoms following a sport-related concussion may affect recovery in adolescent athletes. Therefore, the aims of this study were to 1) describe the proportion of athletes with acute psychological symptoms, 2) identify potential predictors of higher initial psychological symptoms, and 3) determine whether psychological symptoms affect recovery in a cohort of concussed high school athletes.
Methods: A retrospective cohort study of high school athletes (14-18 years of age) who sustained a sport-related concussion from November 2017 to April 2022 and presented to a multidisciplinary concussion center was performed.