Publications by authors named "Marco A Ocampo"

Objective: To provide primary evidence of Trypanosoma cruzi landscape genetics in the Mexican Neotropics.

Materials And Methods: Trypanosoma cruzi and discrete typing units (DTU) prevalence were analyzed in landscape communities of vectors, wildlife, livestock, pets, and sympatric human populations using endpoint PCR and sequencing of all relevant amplicons from mitochondrial (kDNA) and nuclear (ME, 18S, 24Sα) gene markers.

Results: Although 98% of the infected sample-set (N=2 963) contained single or mixed infections of DTUI (TcI, 96.

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Exercise training is widely used for neurorehabilitation of Parkinson's disease (PD). However, little is known about the functional reorganization of the injured brain after long-term aerobic exercise. We examined the effects of 4 weeks of forced running wheel exercise in a rat model of dopaminergic deafferentation (bilateral, dorsal striatal 6-hydroxydopamine lesions).

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Article Synopsis
  • Repeated water avoidance stress (WAS) in rats leads to visceral hyperalgesia (VH), reflecting symptoms similar to human irritable bowel syndrome (IBS), particularly the influence of stress.
  • The study used a method to measure cerebral blood flow and brain activation in rats before and after WAS treatment, revealing changes in brain areas associated with pain perception.
  • Results indicated that stressed rats showed increased activation in certain brain regions while showing a disrupted negative correlation between the prefrontal cortex and amygdala, resembling findings in IBS patients and supporting the validity of the WAS model.
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Clinical and preclinical evidence suggests anxiolytic-like efficacy of pregabalin (PGB, Lyrica). However, its mechanism of action remains under investigation. The current study applied [(14)C]-iodoantipyrine cerebral blood flow (CBF) mapping to examine the effect of PGB on neural substrates underlying unconditioned fear in a rat model of footshock-induced fear.

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