Lead exposure in children from 6 to 12 years old

Jiménez-Gutiérrez, Carlos; Romieu, Isabelle; Ramírez-Sánchez, A L; Palazuelos-Rendón, Eduardo; Muñoz-Quiles, Ilda

doi:10.1590/s0036-36341999000800002

Cited by 7 publications

(4 citation statements)

References 23 publications

(29 reference statements)

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“…The problem of lead pollution affects every country in Latin America and the Caribbean (LAC), México and Peru are important producers of this metal [15,26]. The main means of lead absorption are skin and respiratory, digestive tracts and cutaneous.…”

Section: Discussionmentioning

confidence: 99%

“…The main means of lead absorption are skin and respiratory, digestive tracts and cutaneous. Absorption through the digestive tract is most important for children and adolescents [1,15,26]. Minors often explore their surroundings with the hands and mouth, and they may well ingest dirt and dust particles contaminated with lead [5,16].…”

Section: Discussionmentioning

confidence: 99%

“…Blood samples were taken to the Laboratory for Biological Research Institute of Science, were placed in special tubes metex change reagent, to level of lead in blood [27,14]. The same procedure was followed for each of the samples of the students a total of 158 samples were analyzed [28,12,15].…”

Section: Analysis Of Samplesmentioning

confidence: 99%

“…Due to the industrial development in over the last couple of centuries and accelerated urbanization, lead poisoning has become chronic [11,12]. Among its more important clinical consequences are damages related to learning, attention, and growth; the neurological damages are, for many reasons, of greater medical importance [13,14,15].…”

Section: Introductionmentioning

confidence: 99%

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Resistance to Lead of Streptococcus mutans Isolated from Adolescents in San Baltazar Tetela, Puebla

Martínez

Cedillo-Ramírez

Silva-Handall

et al. 2015

JSRR

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Aims:The purpose of this study was to determine if Streptococcus mutans have adapted to the polluted condition present among this population, adolescents 11-15 years of age with and without caries, and the resistance of this organism to grow at different concentrations of lead (Pb). Methodology: In Diagram 1. Summary of the different stages of experimental development are briefly explained in the following paragraphs. Results: The present investigation was made because contamination by chemical substances (heavy metals) represents an important health risk. We chose the community of San Baltazar Tetela, Puebla-México as our study site since it experiences noticeable environmental contamination because of industrial emissions and run-off generated by the storage of these Original Research Articlepolluting agents in the Manuel Avila Camacho dam (Valsequillo Lake). This study not only allowed us to quantify the concentration of lead in the blood of adolescents living in this community, but also to establish its possible association with socio-economic factors. On the other hand we isolated and identify Streptococcus mutans from saliva in teenagers. The mean blood lead value has a value of 7.89g/dL of blood (Graph. 3) in the lower levels to 10 g / dL, with lead levels greater 10g / dL of blood is 13. 18; not having statistically significant difference in applying the test, based on the weight and height of children with and without elevated lead, on the other hand the average value of CPO in children with normal blood lead was 3.99 (Graph.4), while children with higher lead levels to 10g / dL of blood, had a 7.41 CPO.

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Section: Discussionmentioning

confidence: 99%