Publications by authors named "Alemany V"

Heart transplantation remains the ultimate treatment strategy for neonates and children with medically refractory end-stage heart failure and utilization of donors after circulatory death (DCD) can expand th donor pool. We have previously shown that mitochondrial transplantation preserves myocardial function and viability in neonatal swine DCD hearts to levels similar to that observed in donation after brain death (DBD). Herein, we sought to investigate the transcriptomic and proteomic pathways implicated in these phenotypic changes using ex situ perfused swine hearts.

View Article and Find Full Text PDF
Article Synopsis
  • A 54-year-old woman was admitted with recurrent abdominal pain and new chest pain, leading to the discovery of a thoracic aortic aneurysm, suspected to involve intramural hematoma or aortitis.
  • Initial conservative treatment was followed by surgical intervention after imaging suggested intramural hematoma, but surgery revealed severe aortitis without hematoma, indicating complex diagnostic challenges.
  • Further examination identified IgG4-related disease linked to chronic lymphocytic leukemia (CLL), highlighting the need for a multidisciplinary approach and various diagnostic methods to accurately assess aortic conditions.
View Article and Find Full Text PDF

Objective: Heterotaxy syndrome is a complex multisystem abnormality historically associated with high morbidity and mortality. We sought to evaluate the early and long-term outcomes after cardiac surgery in heterotaxy syndrome.

Methods: This is a single-center retrospective review of patients with heterotaxy syndrome undergoing single-ventricle palliation or primary or staged biventricular repair from 1998 to 2018.

View Article and Find Full Text PDF

The protocol here provides a simple, highly replicable methodology to induce in situ acute regional myocardial ischemia in the rabbit for non-survival and survival experiments. New Zealand White adult rabbit is sedated with atropine, acepromazine, butorphanol, and isoflurane. The animal is intubated and placed on mechanical ventilation.

View Article and Find Full Text PDF

Objective: Mitochondrial transplantation has been shown to preserve myocardial function and viability in adult porcine hearts donated after circulatory death (DCD) . Herein, we investigate the efficacy of mitochondrial transplantation for the preservation of myocardial function and viability in neonatal and pediatric porcine DCD heart donation.

Methods: Circulatory death was induced in neonatal and pediatric Yorkshire pigs by cessation of mechanical ventilation.

View Article and Find Full Text PDF

Background: Appendectomy for acute appendicitis is the most common procedure performed emergently by general surgeons in the United States. The current management of acute appendicitis is increasingly controversial as non-operative management gains favor. Although rare, appendiceal neoplasms are often found as an incidental finding in the setting of appendectomy.

View Article and Find Full Text PDF

Background And Objective: The predictive role of a patient's age in spinal cord injury (SCI) is still unclear given the coexistence of potential confounding factors, whether clinical or radiological. Thus, it is the aim of this work to assess the prognostic role of a patient's age against initial radiological features in a traumatic cervical SCI population.

Methods: Clinical and radiological data from patients with acute traumatic cervical SCI and a first MRI performed within 48 h of trauma were retrospectively reviewed.

View Article and Find Full Text PDF

Mitogenic response to growth factors is concomitant with the modulation they exert on the levels of Fructose 2,6-bisphosphate (Fru-2,6-P2), an essential activator of the glycolytic flux. In mammalian cells, decreased Fru-2,6-P2 concentration causes cell cycle delay, whereas high levels of Fru-2,6-P2 sensitize cells to apoptosis. In order to analyze the cell cycle consequences due to changes in Fru-2,6-P2 levels, the bisphosphatase-dead mutant (H258A) of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase enzyme was over-expressed in Schizosaccharomyces pombe cells and the variation in cell phenotype was studied.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates how environmental stress impacts the cell cycle in fission yeast, focusing on the role of Srk1 kinase in regulating mitosis.
  • Srk1 inhibits the Cdc25 phosphatase during the G2 phase, and its activity influences whether cells enter mitosis at the proper time.
  • The phosphorylation of Cdc25 by Srk1 prevents premature mitosis without being directly involved in responses to DNA damage or replication issues, highlighting its role in normal cell cycle progression under stress conditions.
View Article and Find Full Text PDF
Article Synopsis
  • The cmk2 gene in Schizosaccharomyces pombe produces a 504 amino acid protein kinase related to the calmodulin-dependent protein kinase family.
  • Overexpression of the cmk2(+) gene isn't necessary for cell survival but results in blocking the cell cycle at the G2 phase, influencing cdc2 activity.
  • Cmk2 protein peaks during the G1/S boundary and helps manage DNA replication issues, allowing extra time to fix replication errors without affecting DNA damage checks.
View Article and Find Full Text PDF

Cmk2, a fission yeast Ser/Thr protein kinase homologous to mammalian calmodulin kinases, is essential for oxidative stress response. Cells lacking cmk2 gene were specifically sensitive to oxidative stress conditions. Upon stress, Cmk2 was phosphorylated in vivo, and this phosphorylation was dependent on the stress-activated MAPK Sty1/Spc1.

View Article and Find Full Text PDF

The data reported here summarize a series of results which reveal new functions for nuclear calmodulin (CaM). The addition of CaM inhibitors to cultures of proliferating NRK cells blocked the activity of the cyclin-dependent protein kinases 4 (cdk4) and 2 (cdk2), which are enzymes implicated in the progression of G1 and in the onset of DNA replication, respectively. CaM modulates the activity of cdk4 by regulating the nuclear location of both cdk4 and cyclin D, its associated regulatory subunit.

View Article and Find Full Text PDF

Objective: To compare the results obtained in two successive audits to observe the effectiveness of this control method.

Design: The care process followed by pregnant women attended in 1986-87 is compared with that in 1988.

Location: Cartuja Health Centre (Granada).

View Article and Find Full Text PDF