Non-immune foetal hydrops: a case report.

Foetal hydrops occurs when a certain amount of interstitial fluid, produced by capillary ultrafiltration, overcomes the amount of interstitial fluid that returns to the blood circulation through the lymphatic system. Hydrops is classified as immune (IH) due to the presence of circulating maternal antibodies against the foetal red blood cell's antigens, and non-immune (NIH) that includes all the other causes of hydrops. This classification is still valid, but only under a clinical point of view because they differ in aetiology and management.

Is it possible to predict postnatal depression? Research into the origin of blues and depression. The role of the gynaecologist.

Purpose Of Investigation: the authors investigated the role of the gynaecologist in trying to predict postnatal depression. Women suffering from postnatal depression (PND) are the expression of a failure to adapt to the unjust demands that society makes on them. Isolation and the lack of social support during and after the pregnancy are very strong factors of risk for postpartum depression.

Inhalation toxicity of ammonium perfluorooctanoate.

Ammonium perfluorooctanoate (CAS Registry No. 3825-26-1) is a fine white powder which can become airborne; hence its inhalation toxicity was studied in the male rat. The compound was found to be moderately toxic following single 4-hr exposures, with an LC50 of 980 mg/m3.

Induction of branchial (gill) neoplasms in the medaka fish (Oryzias latipes) by N-methyl-N'-nitro-N-nitrosoguanidine.

Juvenile medaka were exposed to N-methyl-N'-nitro-N-nitrosoguanidine in water under static renewal conditions for 28 days. Two groups of 134 fish each were pulsed 3 times weekly at nominal concentrations of 1.0 and 0.

Two cases of lymphosarcoma in channel catfish exposed to N-methyl-N'-nitro-N-nitrosoguanidine.

Of 158 channel catfish (Ictalurus punctatus) exposed to N-methyl-N'-nitro-N-nitrosoguanidine [(MNNG) CAS:70-25-7] in water for 28 days, 2 developed disseminated lymphosarcoma. One fish was necropsied at 12 months and another at 18 months following exposure. Both fish had a massive neoplastic infiltration of the bilateral pairs of head and trunk kidneys from which the neoplastic cells appeared to originate.