fetal resorption
{{Short description|Disintegration and assimilation of fetus in the uterus}}
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 resorption.{{Cite MeSH|uid=68005327|name=Fetal Resorption|MeSH Unique ID=D005327}} 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.{{cite book |last1=Feldman |first1=Edward C. |last2=Nelson |first2=Richard William |chapter=Spontaneous abortion and resorption of fetuses |page=811 |title=Canine and Feline Endocrinology and Reproduction |date=2004 |publisher=Elsevier Health Sciences |isbn=978-0-7216-9315-6 }}
In rodents
Fetal resorption in rats is common and can be influenced{{How|date=March 2023}} by antioxidants.{{cite journal|author=USA |title=Fetal resorption in rats treated with an antiestrogen in relation to luteal phase nidatory estrogen secretion |date=2018-05-01 |pmid=1621490 |doi=10.1530/acta.0.1260444 |volume=126 |issue=5 |journal=Acta Endocrinol |pages=444–50}}{{cite journal |last1=Telford |first1=Ira R. |last2=Woodruff |first2=Caroline S. |last3=Linford |first3=Ray H. |title=Fetal resorption in the rat as influenced by certain antioxidants |journal=American Journal of Anatomy |date=January 1962 |volume=110 |issue=1 |pages=29–36 |doi=10.1002/aja.1001100104 |pmid=13920140 }}{{cite journal |last1=Howell |first1=J. McC. |last2=Hall |first2=G. A. |title=Histological observations on foetal resorption in copper-deficient rats |journal=British Journal of Nutrition |date=March 1969 |volume=23 |issue=1 |pages=47–50 |doi=10.1079/bjn19690008 |pmid=5766792 |doi-access=free }}{{cite journal |last1=Gendron |first1=R. L. |last2=Nestel |first2=F. P. |last3=Lapp |first3=W. S. |last4=Baines |first4=M. G. |title=Lipopolysaccharide-induced fetal resorption in mice is associated with the intrauterine production of tumour necrosis factor-alpha |journal=Reproduction |date=1 November 1990 |volume=90 |issue=2 |pages=395–402 |doi=10.1530/jrf.0.0900395 |pmid=2250238 |doi-access=free }}{{cite journal |last1=Hayakawa |first1=Satoshi |last2=Fujikawa |first2=Tomoyuki |last3=Fukuoka |first3=Hideoki |last4=Chisima |first4=Fumihisa |last5=Karasaki-Suzuki |first5=Miki |last6=Ohkoshi |first6=Emika |last7=Ohi |first7=Hiroyuki |last8=Kiyoshi Fujii |first8=Tom |last9=Tochigi |first9=Meijin |last10=Satoh |first10=Kazuo |last11=Shimizu |first11=Takako |last12=Nishinarita |first12=Susumu |last13=Nemoto |first13=Norimichi |last14=Sakurai |first14=Isamu |title=Murine fetal resorption and experimental pre-eclampsia are induced by both excessive Th1 and Th2 activation |journal=Journal of Reproductive Immunology |date=July 2000 |volume=47 |issue=2 |pages=121–138 |doi=10.1016/s0165-0378(00)00053-x |pmid=10924746 }}
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, although many cases of assumed complete resorption of an entire litter are likely to have just been the bitch experiencing a pseudopregnancy.{{cite web|url=https://breedingbusiness.com/puppy-absorption/|title=Guide to Puppy Absorption (Canine Fetal Resorption)|first=Xenia|last=Soares|date=13 May 2018}}
See also
- Vanishing twin syndrome
- Lithopedion, calcified body of a dead fetus
References
{{Reflist}}
External links
- {{MeSH name|Fetal Resorption}}
{{Pathology of pregnancy, childbirth and the puerperium}}
{{Authority control}}