Advertisement

Topics

Improvement of Humoral Immune Response With Hemodialysis on BK-F Membrane: Correlation to Soluble CD40 Clearing

2014-08-27 03:16:00 | BioPortfolio

Summary

The aim of this study is to improve the humoral immune response efficiency of hemodialyzed patient by the use of PMMA membrane (BK-F) able to clear the soluble form of CD40 in a model of anti-HBV vaccination

Description

Chronic renal failure is associated with humoral immune alterations characterized by a diminished vaccine response notably against hepatitis B virus (HBV). Defects in cellular contact between immunological cells have been hypothesized to explain this observation but the precise mechanism leading to this "immunocompromised" status is not clear. The soluble form of CD40 (sCD40) is dramatically increased in the serum of uremic patients, particularly in the hemodialyzed patients. This molecule acts like an inhibitor of the CD40/CD154 contact, which is pivotal in the establishment of a proper humoral immune response. It has been shown that the most elevated sCD40 levels are associated with a lack of response to HBV vaccination in the hemodialyzed patients. The majority of the hemodialysis membranes, including high flux polysulfone membranes are unable to clear sCD40 from the sera. However, we found that the high flux polymethylmetacrylate (PMMA) membrane (BK-F Toray Medical Company, Japan) allows for sCD40 clearing.

The aim of this study is to assess the effect of dialysis on PMMA membrane on the improvement of humoral immune response through the efficiency of HBV vaccination in hemodialysed patients who were non responders to one ore more previous vaccination and its link to sCD40 clearing.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Chronic Renal Failure

Intervention

High flux polymethylmetacrylate membrane, Polysulfone membrane, Hepatitis B serological control, Seric sCD40 level

Location

Delay Clinic, Dialyze Unit
Bayonne
France
64100

Status

Active, not recruiting

Source

University Hospital, Bordeaux

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:16:00-0400

Clinical Trials [2024 Associated Clinical Trials listed on BioPortfolio]

Influence of the Vitamine E Coated Dialyzer on Inflammation and Anemia

Evaluation of the effect of a vitamin E coated high flux polysulfone dialyzer on the inflammatory state of patients' end stage renal disease and its clinical benefits in terms of anemia Ob...

Safety and Clinical Performance of a Dialyzer With a Modified Polysulfone Membrane

The clinical investigation will be performed to generate clinical data on clearances and removal rates (for ß2-microglobulin, myoglobin, phosphate, creatinine, and urea) as well as biocom...

Comparison of Hemodialysis With Medium Cut-off Dialyzer (Theranova) and High Flux Dialyzer

The aim of this study is to evaluate the removal of midle molecules and inflammatory cytokines with the Theranova-500 ™ dialyzer (medium cut-off membrane, Baxter®) versus a high flux di...

Uremic Toxin Removal With a New High Flux Cellulose Triacetate Membrane

Comparison of the uremic toxin removal by haemodialysis either with a low flux or a new high flux cellulose triacetate membrane

Short Term Effects of FX Dialysers on QOL and Inflammation

Background: The new hollow fibre FX-class of dialysers (Fresenius Medical Care, Bad Homburg, Germany) features a number of technological improvements that may benefit the patient. This in...

PubMed Articles [18139 Associated PubMed Articles listed on BioPortfolio]

A Dual-mode model interpretation of CO2/CH4 permeability in polysulfone membranes at low pressures.

An asymmetric membrane of polysulfone (PSf) was synthesized by phase inversion method. Permeation experiments were carried out between 2 to 5 bar pressure, and at temperatures 20 to 45°C. The dense-s...

Optimization of transglutaminase (TG) immobilization on the surface of polyethersulfone ultrafiltration membrane and its characteristics in a membrane reactor.

The process of microbial transglutaminase (TG) covalent immobilization on an ultrafiltration membrane surface, the optimum immobilization conditions and the characteristics of the enzymatic membrane i...

High-Flux High-Selectivity Metal-Organic Framework MIL-160 Membrane for Xylene Isomer Separation by Pervaporation.

Separation of p-xylene (kinetic diameter of ~0.58 nm) from its bulkier isomers (o-xylene and m-xylene, ~0.68 nm) is challenging, but substantially important in petrochemical industry. In the present w...

Different bacterial species and their extracellular polymeric substances (EPSs) significantly affected reverse osmosis (RO) membrane fouling potentials in wastewater reclamation.

Biofouling represents the "Achilles' heel" for reverse osmosis (RO) processes due to the growth of bacteria and their production of extracellular polymeric substances (EPSs). Although the microbial co...

Bioethanol production in vacuum membrane distillation bioreactor by permeate fractional condensation and mechanical vapor compression with polytetrafluoroethylene (PTFE) membrane.

A vacuum membrane distillation bioreactor (VMDBR) by permeate fractional condensation and mechanical vapor compression with PTFE membrane was developed for bioethanol production. Cell concentration of...

Medical and Biotech [MESH] Definitions

An ephrin that was originally identified as the product of an early response gene induced by TUMOR NECROSIS FACTORS. It is linked to the CELL MEMBRANE via a GLYCOINOSITOL PHOSPHOLIPID MEMBRANE ANCHOR and binds EPHA2 RECEPTOR with high affinity. During embryogenesis high levels of ephrin-A1 are expressed in LUNG; KIDNEY; SALIVARY GLANDS; and INTESTINE.

A lysosomal-associated membrane glycoprotein that is expressed at high levels in mature DENDRITIC CELLS.

A member of the vesicle-associated membrane protein family involved in the MEMBRANE FUSION of TRANSPORT VESICLES to their target membrane.

An Ig domain-containing membrane receptor for HEPATITIS A VIRUS; EBOLA VIRUS; MARBURG VIRUS; and DENGUE VIRUS. It may also function to modulate ASTHMA and HYPERSENSITIVITY.

The entering of cells by viruses following VIRUS ATTACHMENT. This is achieved by ENDOCYTOSIS, by direct MEMBRANE FUSION of the viral membrane with the CELL MEMBRANE, or by translocation of the whole virus across the cell membrane.

More From BioPortfolio on "Improvement of Humoral Immune Response With Hemodialysis on BK-F Membrane: Correlation to Soluble CD40 Clearing"

Advertisement
Quick Search
Advertisement
Advertisement

 

Relevant Topics

Vaccine
A vaccine is a biological preparation that improves immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism, and is often made from weakened or killed forms of the microbe, its toxins or one ...

Renal disease
Chronic kidney disease (CKD), also known as chronic renal disease, is a progressive loss in renal function over a period of months or years. The symptoms of worsening kidney function are non-specific, and might include feeling generally unwell and experi...


Searches Linking to this Trial