R R de-Souza

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The neurons of whole cardiac atria were stained using a NADH-diaphorase technique in young adult (3 months old) (GI) and aging rats (20 months old) (GII). Light microscopy revealed differences in the appearance of the neurons in the two groups. In GI, most ganglia contained 50-100 neurons while in GII, most ganglia usually contained 20 neurons. The mean(More)
The myenteric plexus of the digestive tract of the wild mouse Calomys callosus was examined using a histochemical method that selectively stains nerve cells, and the acetylcholinesterase (AChE) histochemical technique in whole-mount preparations. Neuronal density was 1,500 +/- 116 neurons/cm2 (mean +/- SEM) in the esophagus, 8,900 +/- 1,518 in the stomach,(More)
1. The myenteric plexus of the small intestine of five C57BL/6J male 5-month-old mice was investigated in whole-mount preparations of the muscularis externa by Giemsa staining and by the acetylcholinesterase (AChE) histochemical technique. 2. The neuronal density was 20212 +/- 3038/cm2 (mean +/- SEM) in the duodenum, 21948 +/- 1488/cm2 in the jejunum, and(More)
The submucous plexus of the normal small and large intestine of Calomys callosus was studied by NADH and AChE histochemical techniques and by transmission and scanning electron microscopy. The plexus contains (X +/- SD) 7,488 +/- 293 neurons/cm2 in the duodenum, 5,611 +/- 836 in the jejunum, 2,741 +/- 360 in the ileum, 3,067 +/- 179 in the cecum, and 3,817(More)
The timing of tourniquet release is a potential confounding factor in the use of retransfusion drains in total knee arthroplasty. A pilot randomised trial was performed using retransfusion drains to determine whether releasing the tourniquet after wound closure reduced the overall blood loss and allogenic transfusion rate. Forty eight patients undergoing(More)
We determined the effect of dietary sodium intake (0.15 and 8% NaCl) on the cardiac neuron size of normotensive 3-week old Wistar rats. An increase in dietary sodium for 48 weeks induced an increase in neuronal size. The number of large neurons (larger than 500 microns 2) increased significantly (chi-square test) in rats ingesting 8% NaCl in their food. The(More)
The lingual nerves from ten mice were examined so that normal axonal populations could be determined. After perfusion fixation, they were removed and processed, and sections were taken from nerves for transmission electron microscopy. The fiber-diameter spectrum of unmyelinated fibers for the mouse lingual nerve is characterized by a unimodal curve with the(More)
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