Carlos Alberto de Carvalho

Learn More
The cardiac plexus of the Wistar rat was investigated in whole-mount preparations of the atria by NADH-diaphorase staining and by the acetylcholinesterase (AChE) histochemical technique. The plexus lies over the muscular layer of the atria, dorsal to the muscle itself, in the connective tissue of the subepicardium. The plexus contains on average 975 +/- 150(More)
BACKGROUND AND STUDY AIMS Celiac disease (CD) is a chronic systemic autoimmune disorder affecting genetically predisposed individuals, triggered and maintained by the ingestion of gluten. Triggered and maintained by the ingestion of gluten, celiac disease is a chronic systemic autoimmune disorder affecting genetically predisposed individuals. Persistent(More)
We have examined the sizes of nerve cells present in the myenteric plexus in the human esophagus, stomach, duodenum and sigmoid colon using a nonhistochemical method (Giemsa) in laminar preparations of the muscularis externa. The collagen and elastic system related fibers in the myenteric ganglia were also qualitatively evaluated. The major mean of(More)
Trans-dehydrocrotonin has antiulcerogenic and antitumor activities. A complex of beta-cyclodextrin with dehydrocrotonin was developed to improve the delivery of dehydrocrotonin. Complex in solid state was evaluated using X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA) and scanning electron microscopy(More)
On hand of the electonmicroscope, the authors study 24 parts of the encephalic ventricles in samples of Bradypus tridactylus, relating the nervous structures to the ependymal lining, chiefly emphasizing the presence of intraventricular unmyelinated fibres. In various of these regions, typical nerve fibres and other intraventricular cell projections, that(More)
The anatomical study of the proximal attachments of the human popliteus muscle was performed in 25 knees obtained from the dissection room cadavers, of the Anatomy Department of the São Paulo University Medical School. Our findings suggest that the p.m. has four proximal attachments, the condylar, meniscal, capsular and fibular. The muscle can be divided(More)
The esophagus and the stomach of the teleost fishes are sometimes non-differentiable during macroscopic analysis. The scanning electron microscope allowed to characterize those 2 organs in Prochilodus scrofa, also revealing the presence of a short transition segment. The characteristics of the mucosal and surface cells relief were also studied.
An electron microscopic study of the elastic fibre and elastic related fibres of the fascia transversalis of the human inguinal triangle was performed in 20 male patients aged 13 to 81 a with right indirect inguinal hernia submitted to surgical repair. The 3 fibre types comprising the elastic system (oxytalan, elaunin, and elastic fibres) tend to be ordered(More)