Transfusión autóloga diferida en cirugía primaria de prótesis total de cadera

Se analizan los resultados obtenidos mediante transfusión autóloga diferida (TAD) en 50 pacientes intervenidos de prótesis total primaria de cadera. Las extracciones de sangre se realizaron con una semana de intervalo, transcurriendo al menos 72 horas entre la última extracción y la intervención. El total de unidades extraídas para TAD ha sido 100, transfundiéndose 77, lo que supuso el 91% de la sangre transfundida a estos pacientes. 8 pacientes precisaron la transfusión de 1 unidad de sangre homóloga. No se produjeron reacciones adversas ni durante la extracción ni tras la transfusión y los pacientes recuperaron sus cifras normales de hemoglobina y hematocrito al cabo de 1 mes de la intervención. La TAD es un procedimiento sencillo y eficaz de reposición de sangre en cirugía programada de cadera.The results of deferred autologous blood transfusion in 50 patients who underwent total hip replacement are analyzed. Patients donated blood in weekly bases, last donation 72 hours before surgery. A total of 100 units were obtained by this method and 77 of them were used, wich means 91% of the blood transfused to these patients. Eight patients were transfused with homologue blood. No adverse reactions could be observed either in relation with the autodonation of blood or the autotransfusion. One month after surgery, all patients showed hemoglobin and hematocrit whitin normal limits. Autologous transfusion is a simple and efficacious procedure of blood replacement in primary hip arthroplasty

Shape and structure of N=Z 64Ge; Electromagnetic transition rates from the application of the Recoil Distance Method to knock-out reaction

Transition rate measurements are reported for the first and the second 2+ states in N=Z 64Ge. The experimental results are in excellent agreement with large-scale Shell Model calculations applying the recently developed GXPF1A interactions. Theoretical analysis suggests that 64Ge is a collective gamma-soft anharmonic vibrator. The measurement was done using the Recoil Distance Method (RDM) and a unique combination of state-of-the-art instruments at the National Superconducting Cyclotron Laboratory (NSCL). States of interest were populated via an intermediate-energy single-neutron knock-out reaction. RDM studies of knock-out and fragmentation reaction products hold the promise of reaching far from stability and providing lifetime information for excited states in a wide range of nuclei

Transition probabilities in the X(5) candidate 122^{122}Ba

To investigate the possible X(5) character of 122Ba, suggested by the ground state band energy pattern, the lifetimes of the lowest yrast states of 122Ba have been measured, via the Recoil Distance Doppler-Shift method. The relevant levels have been populated by using the 108Cd(16O,2n)122Ba and the 112Sn(13C,3n)122Ba reactions. The B(E2) values deduced in the present work are compared to the predictions of the X(5) model and to calculations performed in the framework of the IBA-1 and IBA-2 models

Lifetime determination of excited states in Cd-106

Two separate experiments using the Differential Decay Curve Method have been performed to extract mean lifetimes of excited states in 106 Cd. The inedium-spin states of interest were populated by the Mo-98(C-12, 4n) Cd-106 reaction performed at the Wright Nuclear Structure Lab., Yale University. From this experiment, two isomeric state mean lifetimes have been deduced. The low-lying states were populated by the Mo-96(C-13, 3n)Cd-106 reaction performed at the Institut fur Kernphysik, Universitat zu Koln. The mean lifetime of the I-pi = 2(1)(+) state was deduced, tentatively, as 16.4(9) ps. This value differs from the previously accepted literature value from Coulomb excitation of 10.43(9) ps

Vaccination Against Amyloidogenic Aggregates in Pancreatic Islets Prevents Development of Type 2 Diabetes Mellitus

Type 2 diabetes mellitus (T2DM) is a chronic progressive disease characterized by insulin resistance and insufficient insulin secretion to maintain normoglycemia. The majority of T2DM patients bear amyloid deposits mainly composed of islet amyloid polypeptide (IAPP) in their pancreatic islets. These-originally β-cell secretory products-extracellular aggregates are cytotoxic for insulin-producing β-cells and are associated with β-cell loss and inflammation in T2DM advanced stages. Due to the absence of T2DM preventive medicaments and the presence of only symptomatic drugs acting towards increasing hormone secretion and action, we aimed at establishing a novel disease-modifying therapy targeting the cytotoxic IAPP deposits in order to prevent the development of T2DM. We generated a vaccine based on virus-like particles (VLPs), devoid of genomic material, coupled to IAPP peptides inducing specific antibodies against aggregated, but not monomeric IAPP. Using a mouse model of islet amyloidosis, we demonstrate in vivo that our vaccine induced a potent antibody response against aggregated, but not soluble IAPP, strikingly preventing IAPP depositions, delaying onset of hyperglycemia and the induction of the associated pro-inflammatory cytokine Interleukin 1β (IL-1β). We offer the first cost-effective and safe disease-modifying approach targeting islet dysfunction in T2DM, preventing pathogenic aggregates without disturbing physiological IAPP function.These studies were funded by a project grant from the Swiss National Foundation (SNF). We acknowledge the technical assistance of Sydney W. Pence and Faith Slubowski at the Institute of Veterinary Physiology, University of Zürich. We appreciate the kind possibility given by Nanolive (Lausanne, Switzerland) for the opportunity and the collaborative acquisition of tomographic pictures.S