Ester Martinez

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The aromatic hydrocarbon receptor (AhR) is a ligand-activated transcription factor that mediates many of the biologic and toxicologic effects of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD, dioxin) and related chemicals. Here we utilized two AhR-dependent bioassay systems as screening tools to identify novel AhR agonists and to detect the presence of AhR(More)
Most current vascular alterations of the thyroid are connected with the organization of a thyroid hematoma after fine-needle aspiration (FNA). Cavernous hemangioma is a benign congenital vascular malformation that occasionally affects the thyroid. This article presents two cases of this rare thyroid pathology unrelated to FNA.
Twenty-seven patients with gastroesophageal reflux were prospectively investigated to define the role of duodenogastric reflux in the development of reflux esophagitis. Duodenogastric reflux was detected and quantified by pH monitoring of the gastric environment 5 cm distal to the distal esophageal sphincter. Alkaline duodenogastric reflux was identified by(More)
Inflammatory status is observed in patients with chronic renal failure (CRF). The relationship between oxygen free radical production and dialysis could play an important role in protein oxidation. Carbonyl protein plasma level is an important tool in the study of protein stress, and it is related to the arterial intima thickness in the atherosclerosis(More)
We evaluated in 214 patients with primary colorectal cancer the prognostic value of the preoperative serum levels of CEA and CA195. For CEA these levels were above the cutoff of 6 ng/ml in 31.3% of patients, whereas for CA195 they were higher than 12 U/ml in 35.9% of patients. The simultaneous use of both antigens increased the sensitivity to 49%, which was(More)
The expression CA195 in serum, defined by monoclonal antibody CC3C195 (IgM), was studied in 67 patients with pancreatic cancer and in 138 patients with biliary or pancreatic benign disease. The results were compared with carcinoembryonic antigen (CEA) expression. The overall sensitivity of the CA195 assay (> 12 U/ml) was higher than that for CEA (89.5% vs.(More)
Nitric oxide is an important factor in the regulation of vasodilator tone. In vascular cells, NO is synthesized by endothelial nitric oxide synthase, a key enzyme of the endogenous vasodilator system. Some studies have described the interaction between NO and the other factors that promote vasodilatation in vascular smooth muscular cells. Some of those(More)
A 5-year-old girl with cutis marmorata telangiectasia congenita (CMTC) and congenital glaucoma, who had previously presented with seizures, transient hemiplegia, upper gastrointestinal bleeding and hemihypertrophy, developed a large pleural effusion. Subsequent imaging revealed renal lymphangiomatosis, multiple anomalous intra-abdominal venous channels, an(More)