Degradation of metformin in water by TiO-ZrO photocatalysis.

The increasing use of pharmaceutical products also increases their release in aquatic environment. These contaminants are considered emerging pollutants, and induce adverse ecological and human health effects. The antidiabetic metformin is one example that has been detected in the aquatic environment at unusual concentrations.

[Disseminated pigmented nevus syndrome].

Two patients carriers of a neuro-cutaneous syndrome showing scattered pigmentary nevus and neurologic disorders are exposed, who are added to three similar cases presented in a previous publication. Differences with other syndromes that show cafe-au-lait spots, like those of Recklinghausen and Albright, and also of other known publications, are remarked. Ultrastructural studies are contributed.

[Subcutaneous fat necrosis of the newborn infant. Apropos of 2 cases].

Two cases of subcutaneous fat necrosis of the newborn are reported, an infrequent disease characterized by nodules or cutaneous endurated plaques that appears a few days after birth, which histopathologic studies shows fat necrosis with formation of giant cells granulomas strange body type and the presence of needle shaped clefts corresponding to fat crystals. This is a benign disease that has to be to differentiated from sclerema neonatorum, a serious entity which coexists with another disease so we also think it could be more a symptom than an authentic thickness. The two entities are vinculated physiopathologically by the injury of the fat tissue with a minor quantity of oleic acid and a major relative proportion of palmitic and stearic acid; than that of the adult, which conditions its easy solidification.