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Biomedical subjects

G Fuentes

Publications and source records attributed to G Fuentes.

7 recordsLinked to original sources
PubMed1998

[Postabortion contraception].

In Mexico, as in almost all the Latin American countries, abortion represents an important maternal morbidity-mortality reason. It has been pointed out that those women who had an abortion, are in greater risk to repeat this condition than those women who have not had the episode. For this reason, it is a transcendental matter, the use of modern contraceptive technology for fertility regulation with the aim to avoid not planned pregnancies and their devastating consequences. This document reviews-according to the Family Planning Official Norm of the Ministry of Health-those different contractive alternatives, that can be used in the postabortion.

Abortion, Induced↗
PubMed1982

Pharmacokinetics of amoxicillin in subjects with normal and impaired renal function.

The pharmacokinetics of amoxicillin was investigated in 4 healthy volunteers and in 16 patients with varying degrees of renal impairment, 4 of whom were on regular hemodialysis. Amoxicillin was administered both in a 1-g single intravenous injection and two 500-mg capsules per os. The kinetics of the antibiotic followed an open two-compartment model. In the patients with renal failure there was a significant decrease in beta, kappa10, and total body clearance. A linear relationship between beta of amoxicillin and creatinine clearance was found. This relationship allows dosage regimen adjustment for patients with renal impairment. A significant increase in the absorption half-life of the antibiotic was also observed in patients with renal impairment. The half-life of the antibiotic during hemodialysis was 2.3 h.

Aged↗
PubMed1975

[Effects of the ashes of the Irazu volcano (Costa Rica) on various insects].

A study of the 1963-1965 eruptions of the Irazú volcano (Costa Rica) showed that the ashes altered the ecological conditions of a great number of insects. Experiments suggest a mechanical action of the abrasive particles on the epicuticle, making it permeable, and thus accelerating dehydration. Other insects, such as the honey bee (Apis mellifera), were not affected externally but through the ingestion of ash-contaminated nectar and by the massive destruction of the vegetation on which they depended. Great destruction of bee populations was observed during 1964 and 1965-66 in the San José area. On the other hand, the volcanic ash apparently favored other insects, especially those protected by a waxy secretion, and by the possible elimination of their natural enemies, to such proportions that they became pests of economic significance.

Costa Rica↗
PubMedDate not supplied

[Postpartum contraceptive practice in hospitals of the Federal District].

For many women living in developing areas, childbirth is the only time when they receive medical care in a clinical setting. These women may not return until they are ready to deliver their next baby. Without access to family planning counseling and effective contraceptive methods, they are likely to become pregnant again within a year or two. Where contraceptive information and services are available to women receiving maternity care, many choose to begin using contraception in the postpartum period. Some elect to have an IUD inserted immediately after delivery or to undergo sterilization while still in the hospital. Under a postpartum contraceptive program administered by the IMSS in one hospital and the same program established in another hospital of the SSA, more than half of postpartum and postabortion women began using contraception or underwent sterilization before they left the hospital. In contrast, the other hospitals under the analysis showed a wide range of contraception coverage from 7 to 55 percent. A formal postpartum contraception program is necessary to establish in all the hospitals in order to improve coverage. Counseling is an important component for all women who must have adequate information before they choose a contraceptive method.

Contraception↗
PubMedDate not supplied

[Effectiveness of a carbamate insecticide as a household low-volume spray for malaria control].

A comparative regional-scale evaluation of the epidemiological impact of low volume (LV) spray of bendiocarb and the conventional spray of DDT against malaria in an endemic area of northern Chiapas was carried out. Three Anopheline species were found: Anopheles pseudopunctipennis, An. albinanus and An. argyritarsis. The most prevalent was An. pseudopunctipennis, a species we suspect may be involved in the transmission of most malaria cases. This species showed high levels of resistance to DDT. However, this insecticide had a long residual effect in wall bioassays, with mortalities > or = 95 per cent for up to 21 weeks in wood, sticks and plaster. Susceptibility to bendiocarb was total, and mortality to LV bendiocarb was > or = 75 per cent for up to 16 weeks in wood, sticks and straw. Very low numbers of mosquitoes were found throughout the evaluation, although malaria transmission continued in control villages (sprayed with DDT), as well as treated villages (sprayed with LV bendiocarb). No plasmodium infected mosquitoes were found, perhaps due to a very small sample size. The LV spray methodology was found to be 1.7 times more effective than conventional spraying in reducing malaria incidence. A net reduction of 1.6 times in insecticide application time was also found, which would allow spraying at the right time, especially when urgent control measures have to be applied, such as in malaria outbreaks. Finally, the new methodology costs 2.2 times more than the conventional ddt spraying, but if the potential of using spray workers in other activities is considered, costs would be comparable to those of DDT spraying.

Aerosols↗