Components of membranes isolated from Spiroplasma citri and corn stunt spiroplasma grown at 28 degrees C were analyzed. On a protein basis, lipid phosphorus was lower and cholesterol was higher in S. citri. Only minor differences between the two species were found in fatty acid composition, reduced nicotinamide adenine dinucleotide diaphorase, and adenosine triphosphatase.

Frogs have been used as an alternative model to study pain mechanisms. Since we did not find any reports on the effects of sciatic nerve transection (SNT) on the ultrastructure and pattern of metabolic substances in frog dorsal root ganglion (DRG) cells, in the present study, 18 adult male frogs (Rana catesbeiana) were divided into three experimental groups: naive (frogs not subjected to surgic...

HYPOTHESIS Radiofrequency (RF) energy applied to breast cancers will result in cancer cell death. DESIGN Prospective nonrandomized interventional trial. SETTING A university hospital tertiary care center. PATIENTS Five women with locally advanced invasive breast cancer, aged 38 to 66 years, who were undergoing surgical resection of their tumor. One patient underwent preoperative chemother...

INTRODUCTION AND METHODS. Nitric oxide (NO) has recently emerged as a major modulator of carotid body (CB) chemoreception. This is evidenced by functional and morphological studies. Chemosensory activity is inhibited by NO agonists and disinhibited by antagonists in both in situ and in vitro preparations (1, 2). At the light microscopic level, the NADPH-diaphorase (NADPH-d)/nitric oxide synthas...