Abortion resulting from

Jorgensen, R.A., Que, Q.D., and Napoli, C.A., Maternally-controlled ovule abortion results from cosuppression of dihydroflavonol-4-reductase or flavonoid-3, 5 -hydroxylase genes in Petunia... 

Dose response curve for percentage observed abortions or still births and for percentage sterile females (Including unrecorded egg abortions) resulting from feeding 20-0HE in vitro to pregnant m. morsltans (ED50 =2.5 pg for abortions alone... 

Clinical signs are similar to those caused by anticoagulant rodenticides and include acute blo< loss, subcutaneous hematomata, anemia, epistaxis, hemorrhagic diarrhea, and abortion resulting from placental hemorrhage. 

When the newborn population Is examined It Is found that between 2 and 4% of Individuals, depending on how the figures are calculated, have some type of birth defect which Is considered to be genetic In origin (8,9) The term "birth defect" Is used In a general sense and encompasses all types of structural, metabolic, and other abnormalities which derive from genetic or other prenatal causes. The birth defects detected postnatally represent only a small fraction of the totality of abnormalities which result from genetic aberrations, but most of the latter result In early spontaneous abortions... 

Most species of angiosperms produce hermaphroditic flowers. The unisexuality in some plants most often results from developmentally programmed abortion or selective reduction in sex organ primordia. In dicots, higher levels of auxins, cytokinins, and ethylene usually correlate with female sex expression and in most of them the femaleness is mainly promoted by ethylene. ... 

Observation of the distal tubules of the uterine gland responsible for nourishment of the larva in utero showed (Figure 2) that adding ecdysteroids to the diet of female tsetse inhibited gland function in some way. As a result, less "milk" from the gland was available to nourish the larva, hence smaller pupae were produced, or the larva was aborted. The diameter of distal tubules was also smaller in females to which JH had been applied (Table II) but, contrary to Denlinger s observation (9), in this experiment (where HPLC pure JH III was used Instead of his crude mixture), no abortions resulted. 

When large amounts are taken, e.g. (unreliably) to induce abortion or in attempted suicide, ocular disturbances, notably constriction of the visual fields, may occur and even complete blindness, the onset of which may be very sudden. Vomiting, abdominal pain and diarrhoea result from local irritation of the gastrointestinal tract. Quinidine-like effects include hypotension, disturbance of atrioventricular conduction and cardiac arrest. Activated charcoal should be given. Supportive measures are employed thereafter as no specific therapy has proven benefit. 

Human infertility can result from the action of xenobiotic chemicals on the female reproductive system, the male reproductive system, attack on the fetus, and the induction of effects in utero that are manifest during adulthood, giving rise to a programmed infertility. Spontaneous abortion can ensue when pregnant women are exposed to toxic chemicals such as those in disinfection byproducts produced by the chlorination of drinking water. 

Dalziel and Dickinson (34 ) found that this pathway contributed significantly to the kinetic parameters when cyclohexanol was used as a substrate. Isotope exchange studies 343) have confirmed the partly random mechanism for this substrate. Shore and Theorell (344) have studied the substrate inhibition for several aliphatic alcohols resulting from the formation of abortive E-NADH> alcohol complexes. 

Inhibition may result from the formation of the abortive ternary NADH... 

In view of the high cost of fruit production, the low success rate of sexual reproduction, and the added vigor and increased shoot number that result from flower and fruit abortion, the question arises why P. peltatum has not abandoned propagation by seed altogether. The persistence of sexual development in mayapple must have demographic implications that... 

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