Christopher Busby

Prof. Christopher Busby


Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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2 September 2011 in Conflict and Health
Verified
Journal Article
Open access
PDF file
SASamira Alaani
Samira Alaani
MTMuhammed Tafash
Muhammed Tafash
CBChristopher Busby
Christopher Busby
MHMalak Hamdan
Malak Hamdan
EBEleonore Blaurock-Busch
Eleonore Blaurock-Busch
Background: Recent reports have drawn attention to increases in congenital birth anomalies and cancer in Fallujah Iraq blamed on teratogenic, genetic and genomic stress thought to result from depleted Uranium contamination following the battles in the town in 2004. Contamination of the parents of the children and of the environment by Uranium and other elements was investigated using Inductively Coupled Plasma Mass Spectrometry. Hair samples from 25 fathers and mothers of children diagnosed with congenital anomalies were analysed for Uranium and 51 other elements. Mean ages of the parents was: fathers 29.6 (SD 6.2); mothers: 27.3 (SD 6.8). For a sub-group of 6 women, long locks of hair were analysed for Uranium along the length of the hair to obtain information about historic exposures. Samples of soil and water were also analysed and Uranium isotope ratios determined. Results: Levels of Ca, Mg, Co, Fe, Mn, V, Zn, Sr, Al, Ba, Bi, Ga, Pb, Hg, Pd and U (for mothers only) were significantly higher than published mean levels in an uncontaminated population in Sweden. In high excess were Ca, Mg, Sr, Al, Bi and Hg. Of these only Hg can be considered as a possible cause of congenital anomaly. Mean levels for Uranium were 0.16 ppm (SD: 0.11) range 0.02 to 0.4, higher in mothers (0.18 ppm SD 0.09) than fathers (0.11 ppm; SD 0.13). The highly unusual non-normal Fallujah distribution mean was significantly higher than literature results for a control population Southern Israel (0.062 ppm) and a non-parametric test (Mann Whitney-Wilcoxon) gave p = 0.016 for this comparison of the distribution. Mean levels in Fallujah were also much higher than the mean of measurements reported from Japan, Brazil, Sweden and Slovenia (0.04 ppm SD 0.02). Soil samples show low concentrations with a mean of 0.76 ppm (SD 0.42) and range 0.1-1.5 ppm; (N = 18). However it may be consistent with levels in drinking water (2.28 μgL-1) which had similar levels to water from wells (2.72 μgL-1) and the river Euphrates (2.24 μgL-1). In a separate study of a sub group of mothers with long hair to investigate historic Uranium excretion the results suggested that levels were much higher in the past. Uranium traces detected in the soil samples and the hair showed slightly enriched isotopic signatures for hair U238/U235 = (135.16 SD 1.45) compared with the natural ratio of 137.88. Soil sample Uranium isotope ratios were determined after extraction and concentration of the Uranium by ion exchange. Results showed statistically significant presence of enriched Uranium with a mean of 129 with SD5.9 (for this determination, the natural Uranium 95% CI was 132.1 < Ratio < 144.1). Conclusions: Whilst caution must be exercised about ruling out other possibilities, because none of the elements found in excess are reported to cause congenital diseases and cancer except Uranium, these findings suggest the enriched Uranium exposure is either a primary cause or related to the cause of the congenital anomaly and cancer increases. Questions are thus raised about the characteristics and composition of weapons now being deployed in modern battlefields

5 April 2012 in Journal of the Islamic Medical Association of North America
Verified
Journal Article
Open access
PDF file
SASamira Telfah Alaani
Samira Telfah Alaani
MAMohannad A.R. Al-Fallouji
Mohannad A.R. Al-Fallouji
CBChristopher Busby
Christopher Busby
MHMalak Hamdan
Malak Hamdan
DOI: http://dx.doi.org/10.5915/44-1-10463 Objectives: To examine numbers of congenital anomaly (CA) at birth overall and by class in one clinic in Fallujah General Hospital, Fallujah, Iraq. Study Design: All congenital anomaly birth referrals to one pediatric clinician at Fallujah General Hospital for an eleven month period beginning November 1, 2009 were recorded. This clinic was one of three clinics to which cases would be referred. Results: There were 291 CA cases registered at birth in the period at the study’s clinic. The total number of births recorded in the hospital over the period was 6049. The CAs included 113 heart and circulatory system cases, 72 nervous system cases, 40 digestive system cases, 9 genitourinary cases, 6 ear, face and neck cases, 7 respiratory cases and 30 Down syndrome cases. Conclusion: Owing to difficulties establishing the exact number of births from which these cases were drawn, the exact rates cannot be precisely determined. Nevertheless, on the basis of reasonable assumptions relating to the activity of the clinic involved, these results support earlier epidemiological findings. On the basis of work reported elsewhere, the higher rates of congenital anomalies are believed to be caused by exposure to some genotoxic agent, possibly uranium.