Tubal stump pregnancy after salpingectomy-Does the time interval from surgical intervention to conception matter?

Aim: Ectopic pregnancy implantation on the tubal stump after salpingectomy is a rare location for extrauterine pregnancy, whose pathogenesis is still unknown. The purpose of this study was to examine whether the time interval elapsed from salpingectomy may predispose the embryo to implantation on the tubal stump in the next pregnancy subsequent to tube removal.

Methods: Nine women operated for stump pregnancy (study group) between 2008 and 2019 were retrospectively identified.

Liposuction breast reduction: a prospective trial in African American women.

Background: Recently published case reports and outcome studies support the use of liposuction alone as an effective technique for ameliorating symptoms of breast hypertrophy. This study is the first prospective trial to examine the effectiveness of liposuction breast reduction as a primary modality of breast reduction. In addition, this study examines the role that liposuction breast reduction can play in the treatment of African American women, given the known scarring difficulties that darker skinned patients can encounter with traditional breast reduction surgery.

Ocular extracellular matrices in development.

The extracellular matrix is known to play important roles in regulating tissue development and cell differentiation. At a basic level the matrix is the substratum to which cells adhere and over which they migrate during morphogenesis. The recognition and adhesion of cells to matrices, especially to specialized matrices such as basal laminae, in developing tissues plays an important role in their decision to adhere or move on, to continue mitosis, to differentiate or to undergo apoptosis.

Cloning of chicken choline acetyltransferase and its expression in early embryonic retina.

The enzyme choline acetyltransferase [EC 2.3.1.

The cell adhesion molecule retina cognin is a cell surface protein disulfide isomerase that uses disulfide exchange activity to modulate cell adhesion.

The retina cell adhesion molecule, R-cognin, shares cDNA sequence with protein disulfide isomerase (PDI) but has a different molecular size and subcellular location. We asked whether R-cognin originated from a unique PDI gene transcript or was a product of posttranscriptional processing. The 3'-terminal partial cDNA clone for R-cognin was extended by both 5' RACE and by PCR from sequence near the 5' end of the PDI-translated region.