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Biomedical subjects

G Herrera

Publications and source records attributed to G Herrera.

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

[Enteroparasitoses in the V Region, Chile. A study of rural school children from Santo Domingo, 1987].

The results of a new enteroparasitological survey carried out by the authors are analyzed with the aim of contributing to the knowledge of the situation of these infections in the V Region, Chile. In 1987 the children of five rural schools of Santo Domingo were studied by means of the modified Telemann method, the Ziehl-Neelsen stain and seried Graham test. The parasites more frequently found were: E. vermicularis (50.4%) and G. lamblia (10.8%). No E. histolytica was found in these children. The most frequent commensal was E. nana (21.9%). Cryptosporidium sp. presented a low frequency (0.9%), a figure that in these asymptomatic subjects is in accordance with that found in outpatients with chronic diarrhea in Valparaíso, V Region.

Adolescent↗
PubMedDate not supplied

[A new cow's milk formula to Complementary Feeding National Program: nitrogen and caloric balance].

Nitrogen, fat and energy retention were measured in 10 male infants (mean age = 6.8 mo) recovering from marasmic malnutrition while they were fed with either cow's milk based formula (LP) or a modified cow's milk formula (LPM). Their mean weight for age ratio was 72% and their weight for length ratio was 95% (NCHS standards). They went through two consecutive balance periods of 6 days each (3 d. for adaptation and 3 d. for urine and feces collection) beginning with either formula randomly. Both formulas had 85 kcal/dl with 11% protein calories in LPM and 13% in LP. Energy intake, absorption and relative retention were slightly greater with LPM than LP. Fat intake was greater under LPM than LP (5.4 vs. 4.5 g-kg-d, p < 0.025), which resulted in significant differences in fat absorption (LPM 4.3 vs. LP 3 g-kg-d, p < 0.025). Nitrogen intake was significantly lower under LPM than LP (487 vs. 571 mg-kg-d, p < 0.025) with lower urinary nitrogen excretion for LPM than for LP (304 vs. 417 mg-kg-d, p < 0.001). Apparent nitrogen retention averaged 115 mg-kg-d for LPM and only 69 mg-kg-d for LP (NS). A significant correlation was observed between nitrogen intake and nitrogen retention: r = 0.70 (y = 0.57x -167; p < 0.05) with LPM, and r = 0.77 (y = 0.63x -291, p < 0.01) with LP. A correlation was also found between energy intake and weight gain: r = 0.55 (NS) with LPM, and r = 0.88 (y = 0.26x -26; p < 0.001) with LP.(ABSTRACT TRUNCATED AT 250 WORDS)

Animals↗
PubMedDate not supplied

[Enteroparasitoses in children from the V Region. A study in the Juan Fernandez archipelago, Chile].

The results of two enteroparasitological surveys in children carried out in the Juan Fernandez Archipelago, within a 5-year period (1982-1987), are compared. In both studies the absence of Ascaris lumbricoides has been persistent, having no explanation for this phenomenon due to the favorable environmental conditions for the development of the quoted parasite. In the second survey Cryptosporidium sp. was studied, finding a higher frequency than that detected in rural areas of the V Region.

Child↗