Fetal resorption

Fetal resorption (also known as fetus resorption) is the disintegration and assimilation of one or more fetuses in the uterus at any stage after the completion of organogenesis, which, in humans, is after the ninth week of gestation. Before organogenesis, the process is called embryo loss.[1] Resorption is more likely to happen early on in the gestation than later on; a later death of a fetus is likely to result in a miscarriage.[2]

In rodents

Fetal resorption in rats is common and can be influenced by antioxidants.[3][4][5][6][7]

In canines

In 1998, an ultrasound study found that the resorption of one or two conceptuses happen in up to 10% of all dog pregnancies,[2] although many cases of assumed complete resorption of an entire litter are likely to have just been the bitch experiencing a pseudopregnancy.[2][8]

See also

References
  1. "Fetal Resorption". MeSH - NCBI.
  2. Feldman, Edward C.; Nelson, Richard William (2004). "Spontaneous abortion and resorption of fetuses". Canine and Feline Endocrinology and Reproduction. Elsevier Health Sciences. p. 811. ISBN 978-0-7216-9315-6.
  3. USA (2018-05-01). "Fetal resorption in rats treated with an antiestrogen in relation to luteal phase nidatory estrogen secretion". Acta Endocrinol. 126 (5): 444–50. doi:10.1530/acta.0.1260444. PMID 1621490.
  4. Telford, Ira R.; Woodruff, Caroline S.; Linford, Ray H. (January 1962). "Fetal resorption in the rat as influenced by certain antioxidants". American Journal of Anatomy. 110 (1): 29–36. doi:10.1002/aja.1001100104. PMID 13920140.
  5. Howell, J. McC.; Hall, G. A. (March 1969). "Histological observations on foetal resorption in copper-deficient rats". British Journal of Nutrition. 23 (1): 47–50. doi:10.1079/bjn19690008. PMID 5766792.
  6. Gendron, R. L.; Nestel, F. P.; Lapp, W. S.; Baines, M. G. (1 November 1990). "Lipopolysaccharide-induced fetal resorption in mice is associated with the intrauterine production of tumour necrosis factor-alpha". Reproduction. 90 (2): 395–402. doi:10.1530/jrf.0.0900395. PMID 2250238.
  7. Hayakawa, Satoshi; Fujikawa, Tomoyuki; Fukuoka, Hideoki; Chisima, Fumihisa; Karasaki-Suzuki, Miki; Ohkoshi, Emika; Ohi, Hiroyuki; Kiyoshi Fujii, Tom; Tochigi, Meijin; Satoh, Kazuo; Shimizu, Takako; Nishinarita, Susumu; Nemoto, Norimichi; Sakurai, Isamu (July 2000). "Murine fetal resorption and experimental pre-eclampsia are induced by both excessive Th1 and Th2 activation". Journal of Reproductive Immunology. 47 (2): 121–138. doi:10.1016/s0165-0378(00)00053-x. PMID 10924746.
  8. Soares, Xenia (13 May 2018). "Guide to Puppy Absorption (Canine Fetal Resorption)".
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