Introduction: Islet autotransplantation requires access to the portal vein or tributaries. We originally infused islets into the liver via the middle or right colic veins, but since 2005 we have used the recanalised umbilical vein. Here, we describe the technique, the advantages and the early results achieved.
Materials And Methods: After removal of the pancreas and restoration of the biliary and enteric continuity, the ligamentum teres is transected. The obliterated umbilical vein is identified and recanalised with Bakes dilators giving access to the left portal vein. A Vygon® Nutricath 'S' 11-Fr catheter is inserted and used for the islet infusion. If the ligamentum teres is to be exteriorised for postoperative measurements or subsequent access, it is pulled through a 10-mm laparoscopic port in the epigastrium, sutured to the skin and covered with a dressing.
Results: We have used this approach in 17 patients and exteriorised the falciform ligament in 4. There have been no intra- or postoperative complications.
Conclusions: The recanalised umbilical approach is safe and allows for venous sampling and postoperative measurements of the portal pressure. Under local anaesthetic, the umbilical vein can be approached above the umbilicus and exteriorised if repeated transplants are required for allograft patients. and IAP.
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http://dx.doi.org/10.1159/000324273 | DOI Listing |
Sci Rep
January 2025
Department of Neonatology, Children's Hospital of Soochow University, Suzhou, China.
This study investigated the correlation between quantitative echocardiographic characteristics within 3 days of birth and necrotizing enterocolitis (NEC) and its severity in preterm infants. A retrospective study was conducted on 168 preterm infants with a gestational age of < 34 weeks. Patients were categorized into NEC and non-NEC groups.
View Article and Find Full Text PDFFront Biosci (Landmark Ed)
January 2025
Department of Cytobiology and Proteomics, Medical University of Lodz, 92-215 Lodz, Poland.
Background: Androgenic anabolic steroids (AASs) are synthetic drugs structurally related to testosterone, with the ability to bind to androgen receptors. Their uncontrolled use by professional and recreational sportspeople is a widespread problem. AAS abuse is correlated with severe damage to the cardiovascular system, including changes in homeostasis and coagulation disorders.
View Article and Find Full Text PDFFront Biosci (Landmark Ed)
January 2025
Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, 530021 Nanning, Guangxi, China.
Background: Rheumatic heart disease (RHD), which is caused mainly by Group A Streptococcus, leads to fibrotic damage to heart valves. Recently, endothelial‒mesenchymal transition (EndMT), in which activin plays an important role, has been shown to be an important factor in RHD valvular injury. However, the mechanism of activin activity and EndMT in RHD valvular injury is not clear.
View Article and Find Full Text PDFPharmaceutics
January 2025
Division of Pharmaceutical Sciences, James L Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA.
RNA nanoparticles, derived from the packaging RNA three-way junction motif (pRNA-3WJ) of the bacteriophage phi29 DNA packaging motor, have been demonstrated to be thermodynamically and chemically stable, with promise as a nanodelivery system. : A previous study showed that RNA nanoparticles with antiangiogenic aptamers (anti-vascular endothelial growth factor (VEGF) and anti-angiopoietin-2 (Ang2) aptamers) inhibited cell proliferation via WST-1 assay. To further investigate the antiangiogenic potential of these RNA nanoparticles, a modified three-dimensional (3D) spheroid sprouting assay model of human umbilical vein endothelial cells was utilized in the present study.
View Article and Find Full Text PDFPharmaceutics
December 2024
Department of Obstetrics and Gynecology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil.
: Fluoxetine (FLX) is the inhibitor of serotonin reuptake most prescribed in pregnant women with depression. This study evaluates the influence of gestational diabetes mellitus (GDM) on the enantioselective pharmacokinetics and transplacental distribution of FLX and its metabolite norfluoxetine (norFLX). : Ten pregnant women diagnosed with GDM (GDM group) were investigated in the third trimester of gestation after they achieved good glycemic control.
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