Assessment of the bioavailability of cadmium in Jamaican soils

Spence, Adrian; Hanson, Richard E.; Grant, Charles; Fung, Leslie A. Hoo; Rattray, Robin

doi:10.1007/s10661-014-3722-9

Cited by 10 publications

(2 citation statements)

References 43 publications

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“…Cadmium, a putative risk factor for PCa [ 13 ], is known to exceed the upper limits of safe levels in the soil in the parishes of Manchester and St. Elizabeth, a known bauxite belt [ 14 , 15 ]. The concentration of cadmium found in yam tubers grown in these soils is as high as 55 % of that present in the soil and possibly 6.4 % is bioavailable on human consumption [ 16 ]. It is therefore possible that the differences seen in this study may be partly due to the cadmium levels in the soil.…”

Section: Discussionmentioning

confidence: 99%

Rural-urban differences in the clinico-pathologic profiles of Jamaican men with prostate cancer

Aiken

Jones

Ragin

et al. 2015

Infect Agents Cancer

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BackgroundProstate cancer causes the highest number of cancer-related deaths in Jamaican men. It is not known whether rural-dwelling men present with worse disease than urban-dwelling men at initial presentation. Since rural and urban-dwelling Jamaicans are predominantly of African descent and generally similar in respect of racial composition, if any significant variation in initial presentation were found, it would suggest that these are likely due to differences in awareness, access to care, and screening patterns.MethodsThe medical records of rural and urban-dwelling patients with prostate cancer were compared. Patients’ age at presentation, initial prostate-specific antigen level, digital rectal examination findings, biopsy Gleason scores and initial treatment received were compared using bivariate and logistic regression analyses.ResultsIn unadjusted analyses rural-dwelling men were older compared to urban-dwelling men (72 years versus 68.5 years, p = 0.035), had higher median PSA values (22.9 ng/ml versus 18 ng/ml, p = 0.001), higher local tumour stage (65.2 % versus 34.8 % T3 disease; 73.7 % versus 26.3 % T4 disease; p = 0.005), higher mean Gleason scores (p = 0.048) and more non-curative initial treatments. Local tumour stage was the only statistically significant difference between rural and urban-dwelling men in logistic regression analysis with rural-dwelling men having a 70 % higher risk of locally-advanced disease (OR = 1.70, 95 % CI: 1.03-2.79; p = 0.038).ConclusionRural-dwelling men presented with more advanced prostate cancer compared to urban-dwelling men. As both rural and urban-dwelling men are of predominant African descent it is likely that these differences are due to differences in access to care, screening practice and awareness of the disease.

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Section: Discussionmentioning

confidence: 99%

Rural-urban differences in the clinico-pathologic profiles of Jamaican men with prostate cancer

Aiken

Jones

Ragin

et al. 2015

Infect Agents Cancer

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“…Heavy metal pollution has been shown to adversely affect ecosystems and is potentially harmful to biota. Among the heavy metals, cadmium (Cd) is commonly associated with soil pollution, and considered to be particularly toxic to and responsible for significant decreases in biological activities in soils [1][2][3]. Cd is a non-degradable metal pollutant and widely exists in soil environments [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Accumulation and Distribution of Cadmium in Flue-Cured Tobacco and Its Impact on Rhizosphere Microbial Community

Gao¹,

Shen²,

Zhang³

2015

Pol. J. Environ. Stud.

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To explore the accumulation and distribution of Cadmium (Cd) in flue-cured tobacco and the effect on soil microbial community structure in the rhizosphere, pot experiments were conducted with different treatment levels of Cd (0,2,4,8, ). The Cd accumulation in different organs of flue-cured tobacco was analyzed, and the bacteria and fungi community structures in the rhizosphere were examined using PCR-DGGE fingerprinting with universal bacteria and fungi primers. Results showed that the order of Cd contents in different organs of flue-cured tobacco was: leaf > stem > root. Increasing Cd concentration in the pot soil elevated Cd contents in different organs of flue-cured tobacco. As to the soil microbial community, the bacterial fingerprinting bands in rhizosphere with 4 mg·kg -1 Cd level were significantly less than other treatments. Some bacteria disappeared with increasing soil Cd concentrations. Nevertheless, some special bacteria apparently had a strong restoration capability in the rhizosphere at a high Cd contamination level (16 mg·kg -1 ). Among the 8 clusters of bacterial communities identified by the sequencing, the Bacterium ellin, Acidobacteria bacterium ellin, and Mycobacterium had strong resistance and adaptability to Cd contamination of different concentrations, whereas the Leptolyngbya had strong adaptability to Cd contamination of moderate concentration, which could become the dominant population at this level. The fungi community diversity in the rhizosphere with different concentrations of Cd was significantly different from the pattern of bacteria. Some fungi appeared with the increase of Cd concentration, but some fungi disappeared at the moderate Cd concentration (4 mg·kg -1 ). Among the 4 clusters of fungal communities identified by the sequencing, the Fusarium and unknown species were the dominant species in the fungi community, which existed in all treatments and had strong adaptability to different Cd concentrations. The Acremonium sclerotigenum was sensitive to Cd contamination and disappeared at Cd concentrations greater than 2 mg·kg -1 , but Rhizopus appeared at Cd concentrations greater 8 mg·kg -1 , suggesting its preference for high Cd concentrations. Flue-cured tobacco had a strong ability to absorb and accumulate Cd. A proper concentration of Cd might have a positive effect on the soil bacteria and fungi community structure of flue-cured tobacco rhizosphere.

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System Biology of Metal Tolerance in Plants: An Integrated View of Genomics, Transcriptomics, Metabolomics, and Phenomics

Khalid¹,

Aqeel

Noman

2019

Plant Metallomics and Functional Omics

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Assessment of the bioavailability of cadmium in Jamaican soils

Cited by 10 publications

References 43 publications

Rural-urban differences in the clinico-pathologic profiles of Jamaican men with prostate cancer

Rural-urban differences in the clinico-pathologic profiles of Jamaican men with prostate cancer

Accumulation and Distribution of Cadmium in Flue-Cured Tobacco and Its Impact on Rhizosphere Microbial Community

System Biology of Metal Tolerance in Plants: An Integrated View of Genomics, Transcriptomics, Metabolomics, and Phenomics

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