143 permanent teeth of individuals aged 14-60 yr from a non-occupationally exposed population in northern Israel were analysed for lead accumulation in a atomic absorption spectrophotometer graphite-furnace. A significant correlation was established between lead level and age. No gender correlation was found. The results suggest that any study dealing with lead accumulation in different populations has to compare groups of the same age range, ignoring the sex of the individuals.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0003-9969(91)90020-u | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Pollutant accumulation characteristics of substrates and mechanism of microbial action in different ecological ditches.
Environ Technol
February 2025
Faculty of Built Environment, University of New South Wales, Sydney, Australia.
Ecological ditches serve as one of the important measures for the concentrated infiltration of stormwater in the construction process of sponge cities. Prolonged concentrated infiltration of stormwater can lead to the accumulation of pollutants and pollution risks in the substrate of ecological ditches. In this study, two different substrate ecological ditches were constructed, namely, a combined substrate ecological ditch with zeolite + ceramsite (EA), and a biological substrate ecological ditch (EB).
View Article and Find Full Text PDFGut microbiota modulation via fecal microbiota transplantation mitigates hyperoxaluria and calcium oxalate crystal depositions induced by high oxalate diet.
Gut Microbes
December 2025
Department of Urology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
Hyperoxaluria, including primary and secondary hyperoxaluria, is a disorder characterized by increased urinary oxalate excretion and could lead to recurrent calcium oxalate kidney stones, nephrocalcinosis and eventually end stage renal disease. For secondary hyperoxaluria, high dietary oxalate (HDOx) or its precursors intake is a key reason. Recently, accumulated studies highlight the important role of gut microbiota in the regulation of oxalate homeostasis.
View Article and Find Full Text PDFTen tips in lupus nephritis management.
Clin Kidney J
January 2025
Division of Nephrology, School of Clinical Medicine, Queen Mary Hospital, University of Hong Kong, Hong Kong SAR.
Lupus nephritis is an important cause of severe glomerulonephritis, and a leading cause of kidney failure in young adults. While the disease can lead to rapid destruction of nephrons if untreated, there are effective therapies to reverse the severe acute kidney injury and prevent the lifetime risk of kidney failure. Early diagnosis and timely intervention are therefore of critical importance.
View Article and Find Full Text PDFImproved plant biomass production under low nitrogen conditions through conditional accumulation of the second messenger, guanosine tetraphosphate, in chloroplasts and mitochondria.
Front Plant Sci
January 2025
Department of Life Science and Technology, Institute of Science Tokyo, Yokohama, Japan.
To enhance plant biomass production under low nitrogen conditions, we employed a method to artificially and temporarily accumulate the bacterial second messenger, guanosine tetraphosphate (ppGpp), to modify plastidial or mitochondrial metabolism. Specifically, we fused a chloroplast or mitochondrial transit-peptide to the N-terminus of the bacterial ppGpp synthase YjbM, which was conditionally expressed by an estrogen-inducible promoter in . The resulting recombinant plants exhibited estrogen-dependent ppGpp accumulation in chloroplasts or mitochondria and showed reduced fresh weight compared to wild type (WT) plants when grown on agar-solidified plates containing a certain amount of estrogen.
View Article and Find Full Text PDFThe Role of Pathogens in Plant Invasion: Accumulation of Local Pathogens Hypothesis.
Microb Ecol
January 2025
State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Beijing, China.
In the past decades, dozens of invasion hypotheses have been proposed to elucidate the invasion mechanisms of exotic species. Among them, the accumulation of local pathogens hypothesis (ALPH) posits that invasive plants can accumulate local generalist pathogens that have more negative effect on native species than on themselves; as a result, invasive plants might gain competitive advantages that eventually lead to their invasion success. However, research on this topic is still quite insufficient.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!