PubMed Health⌕ Search

Biomedical subjects

J Díaz

Publications and source records attributed to J Díaz.

At least 127 records · Page 7Linked to original sources
PubMed1991

Comparison of local signs and symptoms after the insertion of Norplant implants with and without a scalpel.

The study compares NORPLANT subdermal implants acceptors enrolled randomly for two different insertion procedures. One group (420 women) received the implants with the use of a scalpel according to the manufacturer's instructions. The other group (423 women) received the implant without an incision, directly through a sharpened trocar. The local signs and symptoms were observed at 7 and 30 days after insertion. Pain, tenderness, edema/swelling, ecchymosis and defective scar were considered. Complication rates were low and no significant differences were found between the two procedures. Based on the data of this study, we recommend inserting NORPLANT implants without the use of a scalpel.

Drug Administration Routes↗
PubMed1991

[Epidemiological study of prisoners at risk for AIDS in a Spanish prison].

Different proportions of the several AIDS risk practices in a Spanish prison during 1988 were studied. Also a epidemiologic study of the infectious diseases of the prisoners with some risk of this type was carried out. Of 135 prisoners with risk of AIDS, it was found that 91.2% of them were drug addicts. The index of positive HIV in all the population study was of 65.2%. 81.5% of the sample had at least one B hepatitis marker and 11.1% had HBs-Ag. 15.4% of the last group also showed HBe-Ag positive. Histories of non-A, non-B hepatitis were not evaluated in 9.6% of all the patients studied. 53.3% had sexually transmitted diseases. It is important to mention the high index of active tuberculosis found (12.6% of the sample), which is higher than the maximum values found in various similar papers. We did not find any differences in the grade of affectation between HIV+ and HIV-.

Acquired Immunodeficiency Syndrome↗
PubMed1991

[Tuberculosis in 34 patients with HIV infection].

The clinical and microbiological finding of 34 patients with HIV infection and tuberculosis (30 were men), 32 were intravenous drug addicts. Fever, adenopathies, hepatomegaly and splenomegaly were the most encountered manifestations on admittance. 61.8% had a disseminated form of tuberculosis; the main locations were lymphatic (73.5%) and lung (64.7%). The detection of circulating viral antigen was associated with disseminated form of tuberculosis.

Adult↗
PubMed1991

[Severe ischemia of the hand. Treatment with regional intravenous sympathicolysis with reserpine].

Treatment of severe hand ischemia a associated to progressive systemic sclerosis and other disorders is controversial. We studied prospectively 45 patients, 41 female and 4 males, over an 11 year period. Age ranged from 16 to 73 years, mean 46. Underlying disease was systemic sclerosis in 30, CREST in 8, overlapping syndrome in 4, systemic lupus in 1 and non rheumatic vasculitis in 2 patients. Treatment consisted of intravenous injection of reserpine, 1 mg, at a superficial arm vein after controlled local circulatory block for 15 min. Regional anesthesia was required in 38 patients. Adequate follow up was obtained in 32 females and 2 males, receiving a mean of 3.1 therapy sessions (range 1 to 13). Morphologic improvement from 3.09 +/- 0.16 to 1.57 +/- 0.13 and functional improvement from 3.6 +/- 0.12 to 1.75 +/- 0.14 (5 grade scoring system), was observed (p < 0.001). These results correlate with adequate rehabilitation confirmed clinically.

Adolescent↗
PubMed1990

[The effects of a dietary fiber (white lupine bran) in the treatment of non-insulin-dependent diabetes].

We evaluated the effect of dietary fiber from sweet lupine hull (SLH) upon metabolic control in 16 non insulin dependent diabetics (11 males, mean age 52). Body mass index was 23 +/- 2 and non fasting glucose levels were < 200 mg/dl. Following a 2 month control period, patients received SLH, 10 g th 3rd month and 20 g the fourth. Eleven patients received in addition oral hypoglycemic drugs. Intake of crude dietary fiber increased from 4.1 +/- 1.7 to 8.4 +/- 2 and 13.1 +/- 1 g from control to the 3rd and 4th month. Blood glucose increased and cholesterol level decreased in the 3rd month (p < 0.05). During the 4th month, blood glucose decreased to control levels. No changes were observed in body mass, HDL cholesterol, triglycerides, glycosylated Hb and non-fasting glucose and insulin levels in relation to fiber intake. We conclude that dietary fiber intake is low in our patients but a supplement of 10 to 20 g of this particular fiber did not improve metabolic control.

Adult↗
PubMed1990

[Arteriovenous fistula of the cecum diagnosed by digital angiography].

We report the case of a 69 year-old female, with cardiac disease, hypertension, and chronic renal failure treated by hemodialysis; she had several episodes of gastrointestinal hemorrhage, which could not be diagnosed by conventional methods. Digital angiographic study demonstrated the exact cause: it allowed to localize an arterio-venous malformation. A right hemicolectomy was performed and the pathologic study showed the presence of an arteriovenous fistula. Three years later the patient is free of symptoms. We recommend digital angiography in cases of gastrointestinal hemorrhage of unknown or unclear etiology, particularly in patients in chronic renal failure, on the basis of the association of hemodialysis and arteriovenous malformation.

Aged↗
PubMed1990

[Medical application of computers in obstetrics and gynecology education].

Its related the development of two application in Computer Aided Instruction (CAI) in Medical Education with an Apple IIc and 128 K. The first using the PILOT for student; and the second a program of "Simulation of Labor Troubles" for interns and specialty training developed in BASIC. Am special point is the lower time training for the teacher with the PILOT. Its demonstrate the improvement through the qualification in relation to other evaluation in the same year and the relations with other questions during the same test.

Computer Simulation↗
PubMed1986

Specific location of penicillin-binding proteins within the cell envelope of Escherichia coli.

This communication deals with the location of penicillin-binding proteins in the cell envelope of Escherichia coli. For this purpose, bacterial cells have been broken by various procedures and their envelopes have been fractioned. To do so, inner (cytoplasmic) and outer membranes were separated by isopycnic centrifugation in sucrose gradients. Some separation methods (Osborn et al., J. Biol. Chem. 247:3962-3972, 1972; J. Smit, Y. Kamio, and H. Nikaido, J. Bacteriol. 124:942-958, 1975) revealed that penicillin-binding proteins are not exclusively located in the inner membrane. They are also found in the outer membrane (A. Rodríguez-Tébar, J. A. Barbas, and D. Vásquez, J. Bacteriol. 161:243-248, 1985). Under the milder conditions for cell rupture used in this work, an intermembrane fraction, sedimenting between the inner and outer membrane, can be recovered from the gradients. This fraction has a high content of both penicillin-binding proteins and phospholipase B activity and may correspond to the intermembrane adhesion sites (M. H. Bayer, G. P. Costello, and M. E. Bayer, J. Bacteriol. 149:758-769, 1982). We postulate that this intermembrane fraction is a labile structure that contains a high amount of all penicillin-binding proteins which are usually found in both the inner and outer membranes when the adhesion sites are destroyed by the cell breakage and fractionation procedures.

Adhesiveness↗
PubMed1984

Testicular peptides and their endocrine and paracrine functions.

A number of testicular peptides appear to have endocrine and/or paracrine functions. Most, if not all, of these peptides are secreted by the Sertoli cells into the tubular fluid. Although their physiological role has not been fully clarified, these secretory products are believed to play an important role in the local regulation of testicular functions, particularly the spermatogenic process. Presence of high affinity, specific binding sites for transferrin and androgen binding protein, both secreted by the Sertoli cells, has been demonstrated on the round spermatids and/or pachytene spermatocytes. Since within the seminiferous tubules, only the Sertoli cells respond directly to follicle stimulating hormone and testosterone, they could mediate the hormonal effects on spermatogenesis by providing certain products which may be essential during specific stages of germ cell differentiation.

Animals↗
PubMed1983

[Florid papillomatosis of the oral mucosa with bone invasiveness. Anatomo-clinical review of 66 cases of oral florid papillomatosis studied in 20 years].

Sixty-six cases of P.F. of the mouth cavity have been studied. Osseous maxillary invasion (attack) has been detected (discovered) in five patients. It could be determined that in the first three patients the P.F. was originated in the maxillary sinus but in its development it destroyed bone walls and emerged in the mouth cavity. Moreover, in one of the patients it drilled the mucous of the surco naso-geniano outwards. In the other two cases left something attracted our attention the osseous destruction a invasive squamous x rayed was more important than the damage of the mucous membranes. In the last case a change of P.F. into a carcinoma epidermoide infiltrante was produced after cytostatic treatment; this was already published by us. The percentage of the bone invasion of the oral squamous all carcinoma is similar to the Papillomatosis Florida.

Aged↗