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S Castillo

Publications and source records attributed to S Castillo.

66 records · Page 4Linked to original sources
PubMedDate not supplied

External ultrasonic treatment of capsular contractures in breast implants.

The authors report their experience on the nonsurgical treatment of capsular contractures due to breast implant augmentation mammaplasty. External ultrasonic repeated applications have been applied to 24 patients after closed capsulotomy procedures in order to reduce the recurrency rate. The new ultrasonic device used was based on a 2-MHz generator with a timing adjustable power emission connected to eight transducers designed for breast anatomy. The authors report significant improvement of the closed capsulotomy technique demonstrating a persistent stability of the achieved results in 82% of the treated contractures, even in severe cases (Baker's IV), after a minimum follow-up period of 12 months. Methods of application, technical features of the ultrasonic device, experimental charts, and results obtained on 34 breast implant capsular contractures are reported and discussed.

Adult↗
PubMedDate not supplied

A case report of a hemolytic transfusion reaction caused by anti-Holley.

Clinical and laboratory investigation of a black male patient, who received emergency transfusion of blood incompatible for a high incidence antigen, provided evidence for the pathogenetic importance of high titer anti-Holley antibodies with poor avidity. The red blood cells of the patient and two siblings were remarkable in being negative for two high incidence antigens, Hy and hrS, and weak for a third, Gy.

Black People↗
PubMedDate not supplied

Anti-endothelial cell reactivity, the unresolved enigma.

Not only are some anti-endothelial cell antibodies (AECA) directed to thus far unidentified cell membrane structures, but some ot them recognize "planted" antigens and possibly ligand-receptor complexes. The functional heterogeneity of AECA is widely acknowledged: part of them activate the complement, mediate antibody-dependent cell cytotoxicity of trigger the production of tissue procoagulant factor. It has also recently been established that a proportion of AECA have the capacity to induce apoptosis of their target cells. In fact, the most direct demonstration of the pathogenicity of AECA is the autoantibody-induced murine model of vasculitis.

Journal Article↗
PubMedDate not supplied

[Clinical and cytogenetic analysis of 257 cases of Down's syndrome].

Among 257 patients with clinical diagnosis of Down's syndrome, 56.4% of male gender, in whom cytogenetic studies were performed, 14 (5.4%) had normal karyotypes and 243 (94.6%) had 21 trisomy. Of these last, 225 (92.6%) had free 21 trisomy, 10 (4.1%) showed mosaics, 8 (3.3%) had translocations. Average maternal age of this sample was significantly higher than that of patients attending the same maternity wards (32.14 vs. 24.85 years) and 41% of Down syndrome's patients came from mothers aged 36 years or more, even though only 9.7% of this country's deliveries proceed from women of that age group. As to seasonal occurrence, the proportions of births which happened in summer almost doubled that of winter (33.1% vs. 16.9%). The frequency of characteristic clinical signs of Down's syndrome was somewhat different than that described for patients from some other countries, for instance: epicanthus, short neck and widening of the space between 1st. and 2nd. toe were more frequent, while Brushfield's spots, depressed occiput, dental anomalies, heart malformations and fissured tongue seemed less frequent. The importance of cytogenetic studies for diagnosis and genetic counseling is stressed.

Chile↗
PubMedDate not supplied

Nuclear presence of two lysosomal enzymes in rat implantation sites.

OBJECTIVE: To test the Szego hypothesis of increased beta-glucuronidase and acid phosphatase activities in hormone target tissues. METHODS: The presence of beta-glucuronidase and acid phosphatase activities in nuclear subcellular fractions obtained from decidual (implantation site) and stromal (nonimplantation zone) tissues was demonstrated by both biochemical measurements and ultramicrographic analysis utilizing a histochemical reaction. RESULTS: Acid phosphatase was almost twice as abundant in nuclei and lysosomes of epithelial cells (implantation sites), and beta-glucuronidase also was significantly more active in nuclei from epithelial and decidual tissues than in nonimplantation tissue. CONCLUSION: Our results, utilizing the implantation process as experimental model, support the Szego hypothesis of the lysosomal role in hormonal mechanisms of action.

Acid Phosphatase↗