In normal circumstances, use of Picolax oral bowel preparation results in a statistically, but not clinically, significant reduction in concentration of serum urea, sodium and potassium.
Porphyria cutanea tarda has been reported in association with a variety of myeloproliferative and lymphoproliferative disorders, suggesting a possible association between these conditions. We describe four patients presenting within a 12 month period with sporadic porphyria cutanea tarda shortly following the diagnosis of hematologic malignancy. A review of the literature and evidence supportive of a causal association are presented.
Intrahepatic cholestasis of pregnancy (ICP) affects about 0.7% of deliveries in Britain. It is regarded as a benign condition for the mother but is associated with increased fetal mortality in late pregnancy and early delivery is advised. Ursodeoxycholic acid (UDCA) treatment is beneficial to the mother and does not appear to harm the fetus. ICP is often regarded as a disease of the maternal liver already made 'cholestatic' by high levels of circulating progesterone. We propose that ICP should be considered as a feto-maternal disease involving complex interactions between maternal and fetal bile acid metabolism across the placenta. During the late stages of gestation, when there is a rise in fetal and maternal bile acid levels, the placenta may fail to render potentially hepatotoxic bile acids water soluble and hence excretable. This might cause a vicious cycle leading to further cholestasis in the maternal liver already challenged by progesterone.
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