Similar to CSF-1 mutation Csf1op/Csf1op mice, deficiency of CSF1R also resulted in osteopetrosis, reduced mononuclear phagocyte and reproductive defect indicating the function of CSF-1 is through CSF1R.
For 8 of these genes, mouse knockout models have been described; two are embryonic-lethal, precluding direct analyses of the function of the gene in spermatogenesis, three displayed no clear reproductive defect, and three models displayed defects in post-meiotic spermatid differentiation.
Our approach yielded novel genes during the critical meiotic prophase of sexual reproduction and provided insights into the molecular events leading to human reproductive defects.
When those processes go awry, it can lead to neurological and reproductive defects.
Moreover, upon chronic exposure to nTiO2 for 21 d, daphnia displayed severe growth retardation and mortality, as well as reproductive defects.
However, cancer, reproductive defects (Bassil et al. 2007), developmental impairment, immunotoxicity (Berrada et al. 2010), birth defects and endocrine disruption are associated symptoms (Longnecker et al., 1997).
In addition to cognitive problems, patients with X-linked mental retardation (XLMR --which includes fragile XLMR --whichScienceNOW, 24 May 2007)--may also suffer from epilepsy, macrocephaly (an enlarged head), and reproductive defects.
The illnesses the spraying of dioxin has visited directly on the Vietnamese include cancer, skin disorders, liver damage, pulmonary and heart diseases, nervous disorders and reproductive defects, according to the Tribunal.
This suggests that increased fat stores per se is not sufficient to overcome the reproductive defects in the sbp-1 strain.
Female knockout mice do not show any obvious reproductive defects, but it is plausible that the effect may be less dramatic in females, leading only to a (partial) arrest in follicle development.
At the same time, these mice showed reproductive defects, with high rates of embryonic lethality in the second generation, at stages much earlier than the complete Ate1 KO strain.
