Search Results for teratogens
1-20 of 34 Search Results for
The American Biology Teacher. 2012; 749628–634 doi: https://doi.org/10.1525/abt.2012.74.9.6
Published: 01 November 2012
... project can be adapted to allow students in advanced classes to design and implement their own projects for investigating teratogenic effects on development using the ex ovo model of chick development. Figure 4. Picture of the setup for the ex ovo preparation. Figure 4. Picture of the setup for...
The American Biology Teacher. 2014; 763173–177 doi: https://doi.org/10.1525/abt.2014.76.3.4
Published: 01 March 2014
... influential study of the health effects of secondhand smoke. BMJ, 325 , 1413–1416. Ito, T., Ando, H. & Handa, H. (2011). Teratogenic effects of thalidomide: molecular mechanisms. Cellular and Molecular Life Sciences, 68 , 1569–1579. Ito, T., Ando, H., Suzuki, T., Ogura, T., Hotta, K., Imamura, Y...
The American Biology Teacher. 2012; 749636–643 doi: https://doi.org/10.1525/abt.2012.74.9.7
Published: 01 November 2012
...://www.ucpressjournals.com/reprintinfo.asp . 2012 Vitamin A is an essential nutrient required for normal embryonic development. Both an excess and deficiency during gestation will result in abnormalities. Vitamin A (in its more common metabolic form, retinoic acid [RA]) is teratogenic when orally administered to...
The American Biology Teacher. 2012; 749667–671 doi: https://doi.org/10.1525/abt.2012.74.9.14
Published: 01 November 2012
..........................4:270-Q SPORE.......................2:100-RL Teratogen.......................7:496-I The Biltmore Forest School: Poking Back into an Extraordinary Time.......................7:464-A, 7:OL-A Terrarium.......................7:518-H Transformational learning.......................6...
The American Biology Teacher. 2012; 747496–502 doi: https://doi.org/10.1525/abt.2012.74.7.12
Published: 01 September 2012
... University of California Press’s Rights and Permissions Web site at http://www.ucpressjournals.com/reprintinfo.asp . 2012 Environmental toxicology teratogen inquiry-based learning amphibian embryos (1) Learn the scientific method, the process of science, by formulating hypothesizes about...
The American Biology Teacher. 2012; 74115–19 doi: https://doi.org/10.1525/abt.2012.74.1.5
Published: 01 January 2012
... low-phenylalanine diet and other diet modifications, near-normal development can take place. However, if a mother herself has PKU, her lack of adherence to a strict diet may cause excess levels of phenylalanine, which is teratogenic to the fetus, causing fetal microcephaly, mental retardation, and...
The American Biology Teacher. 2012; 744213–223 doi: https://doi.org/10.1525/abt.2012.74.4.3
Published: 01 April 2012
.... Mittendorf, R. (1995). Teratogen update: carcinogenesis and teratogenesis associated with exposure to diethylstilbestrol (DES) in utero . Teratolog y, 51 , 435–445. Nakajima, T., Maekita, T., Oda, I., Gotoda, T., Yamamoto, S., Umemura, S. & others. (2006). Higher methylation levels in gastric...
The American Biology Teacher. 2009; 719536–540 doi: https://doi.org/10.2307/20565376
Published: 01 November 2009
... suspicion, however, that its overuse may actually be harmful (Larson et al., 2004). While triclosan has not been found to have any carcinogenic or teratogenic effects in humans (Bhargava & Leonard, 1996), a number of recent studies raise concern that the extensive use of triclosan-containing products can...
The American Biology Teacher. 2007; 695280–286 doi: https://doi.org/10.2307/4452157
Published: 01 May 2007
... that are prepared for electropho- resis contain formamide. Though animal studies have shown for- mamide to be a teratogen, stu- dent exposure can be minimized if the 0.5 mL sample tubes are preloaded with formamide prior to student contact. The tubes should be stored in appropriate size racks, and...
The American Biology Teacher. 2006; 689544–546 doi: https://doi.org/10.2307/4452062
Published: 01 November 2006
...#R6041) PstI (Promega cat#R6111) Safety Note: Ethidium bromide can detect smaller quantities of DNA than other DNA dyes because of its high affinity for DNA. However, that high affinity for DNA makes ethidium bromide a strong mutagen, and possibly a teratogen and carcinogen. In addition, a UV light...
The American Biology Teacher. 2002; 649707–709 doi: https://doi.org/10.2307/4451419
Published: 01 November 2002
... when Taxol was BOOK REVIEWS 707 trademarked) - are associated with controversies that are vividly and excellently chronicled in these books. Thalidomide, the classic example of a chemical teratogen, causing shortened or absent limbs (phocomelia) during its distribution in the 1960s and 1970s, is now...
The American Biology Teacher. 1990; 528472–479 doi: https://doi.org/10.2307/4449179
Published: 01 November 1990
... Holmes, L. (1988). Human teratogens: Delineating the phenotypic effects, the period of greatest sensitivity, the dose-response relationship and mechanisms of action. Progress in Clinical and Biological Research, 281, 177-191. Holmes 177 281 Progress in Clinical and Biological Research 1988...
The American Biology Teacher. 1995; 57278–80 doi: https://doi.org/10.2307/4449927
Published: 01 February 1995
... schools is largely a thing of the past due to its toxic, carcinogenic and teratogenic properties. However, there are also cases of stockrooms that more closely resemble hazardous waste dumps than a school facility. Poor ventilation, past practices of buying large quantities of reagents to attempt to save...
The American Biology Teacher. 1996; 585308–311 doi: https://doi.org/10.2307/4450157
Published: 01 May 1996
...- mann's essay on thalidomide where he presents evidence that one of the enantiomers or chiral forms of thalid- omide is much more teratogenic than the other. He also notes that two- thirds of the 25 top-selling prescription drugs in the United States are in the single enantiomer form. In another essay...
The American Biology Teacher. 1990; 527403–407 doi: https://doi.org/10.2307/4449153
Published: 01 October 1990
... be the result if super-heroic efforts saved all teratogenic newborns regardless of their physical and mental handicaps? Which is the stronger love-that of a parent who would refuse surgery so the child would not lead an abnormal life or that of the parent who would permit the surgery, thus enabling...
The American Biology Teacher. 1990; 52130–32 doi: https://doi.org/10.2307/4449020
Published: 01 January 1990
... establish the clinical use of tretinoin in the treat- ment of acne. It was noted at this time that the top- ical use of tretinoin at concentrations of 0.1 percent and 0.2 percent was not teratogenic, a problem that had been associated with the systemic use of the drug. Tretinoin penetrates the layers of...
The American Biology Teacher. 1980; 422118–123 doi: https://doi.org/10.2307/4446837
Published: 01 February 1980
... Chemicals used in food processing 1965 SAXON, L., and RAPOLA, J.1969. Congenital defects. New York: Holt, Rinehart, and Winston. Saxon Congenital defects 1969 SCHARDEIN, J.L.1976. Drugs as teratogens. West Palm Beach, Florida: CRC Press. Schardein Drugs as teratogens 1976...
The American Biology Teacher. 1987; 494252–256 doi: https://doi.org/10.2307/4448506
Published: 01 April 1987
.... For example, it seems wiser to have a stu- dent at this level humanely investigate a fundamental question about animal behavior rather than determine the teratogenic properties of a toxin. The book and guidelines are a posi- tive step toward promoting more hu- mane use of animals in the classroom. I...
The American Biology Teacher. 1986; 48265–122 doi: https://doi.org/10.2307/4448209
Published: 01 February 1986
... under the direct supervision of a qualified biomedical sci- entist. 4. Experimental procedures should not involve the use of microorganisms patho- genic to humans or other animals, ionizing radia- tion, carcinogens, drugs or chemicals at toxic levels, drugs known to produce adverse or teratogenic ef...
The American Biology Teacher. 1985; 476340–345 doi: https://doi.org/10.2307/4448080
Published: 01 September 1985
... be used for any type of lab activity or dissection." use of microorganisms pathogenic to humans or other animals, ionizing radiation, carcinogens, drugs or chemicals at toxic levels, drugs known to produce adverse or teratogenic effects, pain- causing drugs, alcohol, electric shock, exercise until...