X-ray: Difference between revisions
Line 24: | Line 24: | ||
* '''Maternal effects and cancer risk in the progeny of mice exposed to X-rays before conception'''<ref><pubmed>15945274</pubmed></ref> "To investigate in an animal model whether preconceptual X-ray exposure leads to an altered tumor rate and spectrum in the offspring, a transgeneration carcinogenesis study was carried out. Female mice received X-ray irradiation (2 x 2 Gray) 2 weeks prior to mating with untreated males. ... Fertility and the lifetime of the maternal mice were reduced by the X-ray irradiation, and their incidence of lung and liver tumors was increased as compared to non-irradiated mice. The descendants of all groups revealed comparable body weights and mortality rates. The incidence of hematopoietic/lymphoreticular tissue tumors increased in the female hybrids by 6 months of CsA-treatment. A higher incidence of lung and liver tumors in the sham-treated male progeny of irradiated mothers was detected, pointing to a possible germ cell-transmitted alteration initiated by the preconceptual maternal X-ray exposure." | * '''Maternal effects and cancer risk in the progeny of mice exposed to X-rays before conception'''<ref><pubmed>15945274</pubmed></ref> "To investigate in an animal model whether preconceptual X-ray exposure leads to an altered tumor rate and spectrum in the offspring, a transgeneration carcinogenesis study was carried out. Female mice received X-ray irradiation (2 x 2 Gray) 2 weeks prior to mating with untreated males. ... Fertility and the lifetime of the maternal mice were reduced by the X-ray irradiation, and their incidence of lung and liver tumors was increased as compared to non-irradiated mice. The descendants of all groups revealed comparable body weights and mortality rates. The incidence of hematopoietic/lymphoreticular tissue tumors increased in the female hybrids by 6 months of CsA-treatment. A higher incidence of lung and liver tumors in the sham-treated male progeny of irradiated mothers was detected, pointing to a possible germ cell-transmitted alteration initiated by the preconceptual maternal X-ray exposure." | ||
|} | |} | ||
* '''Radiodiagnostic imaging in pregnancy and the risk of childhood malignancy: raising the bar'''<ref><pubmed>20838652</pubmed>| [http://www.plosmedicine.org/article/info%3Adoi%2F10.1371%2Fjournal.pmed.1000338 PLoS Med.]</ref> | |||
==Musculoskeletal Abnormalities== | ==Musculoskeletal Abnormalities== |
Revision as of 11:13, 15 September 2011
Educational Use Only - Embryology is an educational resource for learning concepts in embryological development, no clinical information is provided and content should not be used for any other purpose. |
Introduction
There are a number of different neonatal screening (newborn screening) programs in different countries testing for various "common" congenital abnormalities and infections. Perinatally the infant is tested physically for hip displasia and may have an x-ray to establish the extent of musculoskeletal abnormality. There are also a number of other systems (renal, cardiovascular, gastrointestinal, endocrine, genital) that can be assessed postnatally by x-ray alone or in combination with tracers or contrast agents.
Radiation is a known teratogen and can affect development, but there is ongoing discussion as to the associated fetal risk and that to maternal health of a range of conditions that are detected or analysed using x-radiation.[1]
Diagnosis Categories
- Prenatal diagnosis - number of different techniques (non-invasive, invasive) for determining normal development
- Neonatal diagnosis (APGAR test, Guthrie test, Hearing test)
- Maternal diagnosis - often pregnancy will expose maternal health problems
Some Recent Findings
|
- Radiodiagnostic imaging in pregnancy and the risk of childhood malignancy: raising the bar[3]
Musculoskeletal Abnormalities
Congenital Hip Dislocation
(>>) right hip dysplasia is shown. |
Arthrogryposis
Renal Abnormalities
Renal Agenesis
Ureteral Duplication
- Links: Renal Abnormalities | Renal Development
Gastrointestinal Tract Abnormalities
Duodenal atresia
Gene Tests
A new site developed by NIH "GeneTests" provides medical genetics information resources available at no cost to all interested persons. It contains educational information, a directory of genetic testing laboratories and links to other databases such as OMIM.
Links: Gene Tests
References
Reviews
<pubmed>19160197</pubmed> <pubmed>18528700</pubmed>
Articles
<pubmed>16484148</pubmed> <pubmed>14949062</pubmed> <pubmed>14942747</pubmed> <pubmed>15434757</pubmed>
Search PubMed
Search PubMed: x-ray neonatal diagnosis | x-ray neonatal screening | maternal x-ray risk
Additional Images
External Links
External Links Notice - The dynamic nature of the internet may mean that some of these listed links may no longer function. If the link no longer works search the web with the link text or name. Links to any external commercial sites are provided for information purposes only and should never be considered an endorsement. UNSW Embryology is provided as an educational resource with no clinical information or commercial affiliation.
- NIH PubMed Health Newborn Screening
- Nemours Foundation Newborn Screening Tests
- The Children's Hospital at Westmead NSW Newborn Screening
- Secondary School Resource biotechnology online
Glossary Links
- Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Term Link
Cite this page: Hill, M.A. (2024, April 24) Embryology X-ray. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/X-ray
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G