Publications by authors named "Rafael Lima Kahwage"
Background: Distal contractile integral (DCI) is influenced by factors other than esophageal smooth muscle contractility, such as intrabolus pressure and vascular and respiratory movements' artifacts. We aimed to determine the size of the contribution of pressures generated by vascular compression on the esophagus to the DCI measured in HRM recordings in symptomatic patients.
Methods: HRM manometry recordings obtained from 383 subjects referred to the GI motility laboratory at a tertiary center (2012-2016) were evaluated by visual inspection for evidence of strong vascular compression (SVC) of the esophagus.
Background: Kaposi's sarcoma (KS) is the most common neoplasm among HIV-infected individuals. The frequency of involvement of KS in the gastrointestinal (GI) tract and the associated epidemiological, immune, endoscopic, and histopathological features in HIV-infected patients, were evaluated in this study.
Methods: A review of the medical and endoscopy reports of 1428 HIV-infected patients, who had undergone upper GI endoscopy at the Endoscopy Service, Clinical Hospital, Faculty of Medicine of Ribeirão Preto between January 1999 and June 2009, was performed.
Pregnant rats were exposed to ethanol (EtOH) and/or methyl mercury (MeHg) during fetal brain development. Nitrergic activity was quantified by densitometric measurement of formazan deposits in the hippocampus, cerebellum and striatum of two-month-old offspring following histochemical assay for NADPH-diaphorase (NADPH-d) activity. Compared to control subjects, an increase in nitrergic activity was found in the molecular layer of dentate gyrus and in the lacunosum molecular and stratum radiatum of CA1 (cornus amoni 1) in the EtOH+MeHg group, whereas a single administration of EtOH increased the activity in all striatal segments.
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