Liver cell-specific transcriptional regulation of connexin32.

Gap junctional intercellular communication facilitates liver homeostasis and growth control in the liver. The major gap junction protein expressed by hepatocytes is connexin32 (Cx32) and non-parenchymal hepatic cells do not express this gene. We investigated the regulation of Cx32 transcription by trans-activating factors in liver cells.

[Extrauterine pregnancy in residual tube stump in a patient already treated with partial salpingectomy for right ampullar pregnancy. Report of a clinical case].

The authors illustrate a case referred to their attention and underline the rarity of the extrauterine pregnancy described caused by the external migration of the fertilised egg which, passing through the contralateral tube and the uterus, became implanted in the residual tube stump (following earlier partial salpingectomy due to ampullar pregnancy).

[A case of uterine leiomyosarcoma in a young patient].

The authors, after a short review of the literature, report a clinical case observed by them. They describe a case of unsuspected uterine leiomyosarcoma diagnosed after a miomectomy and they discuss the question about therapeutic management.