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helen pic
Position
Senior Lecturer

Qualifications
BSc (Qld) MSc PhD (Syd)

Dr Ritchie teaches anatomy and  neuroanatomy to undergraduate students and functional anatomy and embryology to postgraduate students.

Dr Ritchie is the subject/unit co-ordinator for:

  • Speech Science I (BIOS1116)
  • Speech Science II (BIOS1117)
  • Hearing Science (BIOS1118)

Dr Ritchie is the editor of the Australian Teratology Society newsletter and Web site.

Her main research area concerns the chemical causes of birth defects (teratology) particularly vitamin A.  She has two current research projects. The first deals with the problems arising when extrapolating laboratory animal data to the human.   The involves determining whether herbal medicines are safe to use during pregnancy.

Dr Ritchie is co-supervising a Masters student (Mei Yao) who is investigating the effects of herbal medicines on embryonic and foetal development.

Titles of some of her recent publications are shown below:

Recent Papers

M. Yao, H Ritchie, P Brown-Woodman. A reproductive screening test of feverfew: is a full reproductive study warranted? Reproductive Toxicology. 22(4):688-93, 2006.

Yao M. Ritchie HE. Brown-Woodman PD. A reproductive screening test of goldenseal. Birth Defects Research. Part B, Developmental and Reproductive Toxicology. 74(5):399-404, 2005

Brown-Woodman, PDC; Ritchie, HE; Korabelnikoff, A; et al. (2004) Replacement of ether with alternate volatile anesthetics for collection of rat serum used in embryo culture. Toxicology In Vitro, 18 (5): 719-724.

*Boswell-Ruys, CL; Ritchie, HE; Brown-Woodman, PD. (2003) Preliminary screening study of reproductive outcomes after exposure to yarrow in the pregnant rat. Birth Defects Research Part B-Developmental And Reproductive Toxicology, 68 (5): 416-420.

*Ritchie, HE; Brown-Woodman, PD; Korabelnikoff, A. (2003). Effect of Co-administration of retinoids on rat embryo development in vitro. Birth Defects Research Part A-Clinical And Molecular Teratology, 67 (6): 444-451.

Oakes, D.J., Webster, W.S., Brown-Woodman, P.D.C., Ritchie H.E. (2002). Testicular changes induced by chronic exposure to the herbicide formulation, tordon 75dÒ (2,4-d and picloram) in rats. Reproductive Toxicology 16:281-289.

*Oakes, D.J., Webster, W.S., Brown-Woodman, P.D.C., Ritchie, H.E. (2002). A study of the potential for a herbicide formulation containing 2,4-d and picloram to cause male-mediated developmental toxicity in rats. Toxicological Sciences 68:200-206.

Recent books, chapters and journal articles

Brown-Woodman, P.D.C., Ritchie, H.E., Korabelnikoff, A., Emmanuel, C. (2002).  Replacement of ether with alternate volatile anesthetics for collection of rat serum used in embryo culture.  Teratology (submitted).

Oakes, D.J., Webster, W.S., Brown-Woodman, P.D.C., Ritchie H.E. (2002).  Testicular changes induced by chronic exposure to the herbicide formulation, Tordon 75D (2,4-dichlorophenoxyacetic acid and picloram) in rats.  Reproductive Toxicology 16:281-289.

Oakes, D.J., Webster, W.S., Brown-Woodman, P.D.C., Ritchie, H.E. (2002). A study of the potential for a herbicide formulation containing 2,4-D and picloram to cause male-mediated developmental toxicity in rats.  Toxicological Sciences: an Official Journal of the Society of Toxicology, 68(1):200-206.

Ritchie, H.E., Brown-Woodman, P.D., Korabelnikoff A.  (2002).  Effect of co-administration of retinoids on rat embryo development in vitro. Teratology (submitted)

Ritchie H E, Webster W S, Eckhoff C E, Oakes D J (1998). Model predicting the teratogenic potential of retinyl palmitate using a combined in vivo/in vitro approach. Teratology, 58, 113-123.

Webster W S, Ritchie H E (1998). The effects of retinoids on ear development: a review. Retinoids and lipid-soluble vitamins in clinical practice, 14, 88-91.

Webster W S, Woodman P D, Ritchie H E (1997). A review of the contribution of whole embryo culture to the determination of hazard and risk in teratogenicity testing. International Journal of Developmental Biology, 41, 329-335.

Recent abstracts and conference proceedings

Oakes D.J., Webster W.S., Brown-Woodman P.D.C & Ritchie, H.E.  (2000).  Testicular tubule degeneration in the rat after chronic oral administration of a herbicide containing 2,4-D and picloram.  Teratology (in press).
(Presented at the European Teratology Society 27th Conference Oxford, U.K. September 5th - 9th, 1999.)

Ritchie H., Brown-Woodman P.D.C. & Korabelnikoff A.  (2000).  The effect of diminished exposure to all-trans retinoic acid on rat embryo development.  Teratology (in press)
(Presented to The Australian Birth Defects Society, Sydney, 1999).)

Ritchie, H.E., Brown-Woodman, P.D.C. & Korabelnikoff, A.  (1999).  The additive effect of two vitamin A metabolites - implications for risk assessment.  Teratology 60:99.
(Presented to The Australian Birth Defects Society, Sydney, 1998).)

Oakes D.J., Webster W.S., Brown-Woodman P.D.C & Ritchie H.E.  (1999).  Preliminary results of toxicity in the rat after chronic oral administration with herbicide, Tordon 75D.
Presented at "Dioxin 99 - 19th International Symposium on Halogenated Environmental Organic Pollutants and Persistent Organic Pollutants".  September 12 - 17 1999, Venice, Italy.

Ritchie, H.E., Brown-Woodman P.D.C. And Oakes D.J. (1997).  Alteration of expression of Hox B1 and Krox 20 genes following exposure to teratogenic doses of retinyl palmitate or 13 cis retinoic acid in vivo.  Teratology 55: 415-416.
(Presented to The Teratology Society, Sydney, 1996).)

Ritchie H E (1997). Teratology on the internet. 5th International Federation of Teratology Societies Conference, 1, 3.

Ritchie H E, Woodman P D, Oakes D J (1997). Alteration of expression of Hox B1 and Krox 20 genes following exposure to teratogenic doses of retinyl palmitate (RP) or 13 cis retinoic (13cRA) in vivo. Teratology, 55, 415-416

For more information:

E-mail

H.Ritchie@usyd.edu.au

Phone

+61 2 935 19476

Fax

+61 2 935 19520

Office

L121

Address

Discipline of Biomedical Science
School of Medical Sciences
Faculty of Medicine
Cumberland Campus, C42
The University of Sydney
PO Box 170
Lidcombe NSW 1825
Australia

 

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Last update: 12th December 2007