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PubMed Journals Articles About "Alpha Antitrypsin Deficiency" RSS

13:09 EST 14th December 2018 | BioPortfolio

Alpha Antitrypsin Deficiency PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Alpha Antitrypsin Deficiency articles that have been published worldwide.

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Showing "Alpha Antitrypsin Deficiency" PubMed Articles 1–25 of 3,400+

Longterm Homecare Augmentation Program in Alpha-1-Antitrypsin Deficient Patients.

Augmentation with human alpha-1 proteinase inhibitor is the only specific treatment for Alpha-1-Antitrypsin Deficiency (AATD), a rare genetic disease with symptoms of progressive COPD.


Alpha-1 antitrypsin deficiency in a French General Hospital: fortuitous detection rather than efficient screening.

We studied the characteristics of the screening procedure for alpha-1 antitrypsin at Nevers Hospital (France), together with the performance of serum protein gel electrophoresis for the fortuitous detection of patients with deficiency.

Testing for alpha-1 antitrypsin in COPD in outpatient respiratory clinics in Spain: A multilevel, cross-sectional analysis of the EPOCONSUL study.

Alpha-1 antitrypsin deficiency (AATD) is the most common hereditary disorder in adults, but is under-recognized. In Spain, the number of patients diagnosed with AATD is much lower than expected according to epidemiologic studies. The objectives of this study were to assess the frequency and determinants of testing serum α1-antitrypsin (AAT) levels in COPD patients, and to describe factors associated with testing.


Clinical and Histologic Features of Adults with Alpha-1 Antitrypsin Deficiency in a Non-Cirrhotic Cohort.

Alpha-1 antitrypsin deficiency (AATD) is an uncommonly recognized cause of liver disease in adults. Descriptions of the natural history of liver disease are limited to case series and patient reported data from disease registries. Liver pathology is limited to selected patients or unavailable. Therefore, our primary aim was to determine the prevalence and severity of liver fibrosis in an adult AATD population who were not known to have cirrhosis. Our secondary aims were to define risk factors for fibrosis a...

Alpha-1 antitrypsin deficiency as a common treatable mechanism in chronic respiratory disorders and for conditions different from pulmonary emphysema? A commentary on the new European Respiratory Society statement.

The European Respiratory Society recently published an important statement reviewing available evidence on diagnosis and treatment of lung disease associated to alpha-1 antitrypsin deficiency (AATD). Several issues on this topic still remain unresolved and subject of interpretation according to different standard procedures and healthcare systems worldwide. The purpose of this commentary is to offer a critical contribution to most of these controversial issues in light of an Italian perspective for the mana...

α-antitrypsin polymerizes in alveolar macrophages of smokers with and without α-antitrypsin deficiency.

The deficiency of α-antitrypsin (AAT) is secondary to misfolding and polymerization of the abnormal Z-AAT in liver cells and is associated with lung emphysema. Alveolar macrophages (AM) produce AAT, however it is not known if Z-AAT can polymerize in AM, further decreasing lung AAT and promoting lung inflammation.

Coexistent Alpha-1 Antitrypsin Deficiency and Hereditary Hemochromatosis.

Alpha-1 antitrypsin (AAT) deficiency and hereditary hemochromatosis are systemic diseases inherited in an autosomal recessive fashion. The primary manifestation of AAT is early-onset pulmonary disease, while hemochromatosis primarily affects function of the liver, heart, and pancreas through excess iron deposition. No clear association between the two diseases has been delineated. We present a case in which a 34-year old female patient presenting with elevated liver enzymes during a visit for an unrelated a...

Presentation and Prognosis of liver disease in alpha-1 antitrypsin deficiency.

Hyperpolarized He MRI Ventilatory Apparent Diffusion Coefficient of Alpha-1 Antitrypsin Deficiency.

Alpha-1 Antitrypsin Deficiency as a Candidate for Gene Editing.

Similarities in the Computed Tomography Appearance in α1-Antitrypsin Deficiency and Smoking-Related Chronic Obstructive Pulmonary Disease in a Smoking Collective.

Emphysematous destruction of lung parenchyma visible in computed tomography (CT) can be attributed to chronic obstructive pulmonary disease (COPD) or to α1-antitrypsin deficiency (AATD).

hiPSC hepatocyte model demonstrates the role of unfolded protein response and inflammatory networks in α-antitrypsin deficiency.

α-antitrypsin deficiency (A1ATD) is an autosomal recessive disorder caused by mutations in the SERPINA1 gene. Individuals with the Z variant (Gly342Lys) retain polymerised protein in the endoplasmic reticulum (ER) of their hepatocytes, predisposing them to liver disease. The concomitant lack of circulating A1AT also causes lung emphysema. Greater insight into the mechanisms that link protein misfolding to liver injury will facilitate the design of novel therapies.

Gene Delivery of Alpha-1-Antitrypsin Using Recombinant Adeno-Associated Virus (rAAV).

The challenge for alpha-1-antitrypsin (AAT also known as SERPINA1) gene therapy is to achieve long term and high levels of AAT production. Recombinant adeno-associated virus (rAAV) vector has several advantages for AAT gene delivery including no viral genes in the vector, no requirement of integration for long-term transgene expression, low immunogenicity, and wide tropism. AAV-mediated AAT gene therapy has been developed and tested in animal models for AAT deficiency, type 1 diabetes, rheumatoid arthritis,...

Human alpha 1-antitrypsin protects neurons and glial cells against oxygen and glucose deprivation through inhibition of interleukins expression.

Death due to cerebral stroke afflicts a large number of neuronal populations, including glial cells depending on the brain region affected. Drugs with a wide cellular range of protection are needed to develop effective therapies for stroke. Human alpha 1-antitrypsin (hAAT) is a serine proteinase inhibitor with potent anti-inflammatory, anti-apoptotic and immunoregulatory activities. This study aimed to test whether hAAT can protect different kind of neurons and glial cells after the oxygen and glucose depri...

Retraction: The Immunoregulation Effect of Alpha 1-Antitrypsin Prolong β-Cell Survival after Transplantation.

NorUDCA promotes degradation of α1-antitrypsin mutant Z protein by inducing autophagy through AMPK/ULK1 pathway.

Alpha-1 Antitrypsin (α1AT) Deficiency is a genetic disease in which accumulation of α1AT mutant Z (α1ATZ) protein in the ER of hepatocytes causes chronic liver injury, liver fibrosis, and hepatocellular carcinoma. No effective medical therapy is currently available for the disease. We previously found that norUDCA improves the α1AT deficiency associated liver disease by promoting autophagic degradation of α1ATZ protein in liver in a mouse model of the disease. The current study unravels the novel under...

Ataluren, a New Therapeutic for Alpha-1 Antitrypsin Deficient Individuals with Nonsense Mutations.

Alpha1-Antitrypsin Deficiency as an Incidental Finding in Clinical Genetic Testing.

The patient profile of individuals with Alpha-1 antitrypsine gene mutations at a referral center in Brazil.

The clinical, functional, radiological and genotypic descriptions of patients with an alpha-1 antitrypsin (A1AT) gene mutation in a referral center for COPD in Brazil.

In Vivo Analysis of Alpha-1-Antitrypsin Functions in Autoimmune Disease Models.

Alpha-1-antitrypsin (AAT) is a circulating protein, a serpin, with multiple protective functions. Beside the well-known proteinase inhibitory function, which protects the lungs from chronic obstructive pulmonary disease (COPD), many studies have shown that AAT inhibits pro-inflammatory cytokine gene expression and functions. These anti-inflammatory and immune-regulatory properties have led to studies testing the therapeutic effect of AAT in autoimmune disease models. Initially, a study using recombinant ade...

Oxidation-resistant and thermostable forms of alpha-1 antitrypsin from inclusion bodies.

Native α1-antitrypsin (AAT) is a 52-kDa glycoprotein that acts as an antiprotease and is the physiological inhibitor of neutrophil serine proteases. The main function of AAT is to protect the lung from proteolytic damage induced by inflammation. AAT deficiency (AATD) is a codominant autosomal disorder caused by pathogenic mutations in SERPINA1 gene, leading to reduced levels of serum AAT. The deficiency is known to increase the risk of pulmonary emphysema and chronic obstructive pulmonary disease as a cons...

Cellular Models for the Serpinopathies.

Our current knowledge about the cellular mechanisms underlying serpin-related disorders, the serpinopathies, is predominantly based on studies in cell culture models of disease, particularly for alpha-1 antitrypsin (AAT, SERPINA1) deficiency causing emphysema and the familial encephalopathy with neuroserpin (NS, SERPINI1) inclusion bodies (FENIB). FENIB, a neurodegenerative dementia, is caused by polymerization of NS (Miranda and Lomas, Cell Mol Life Sci 63:709-722, 2006; Roussel BD et al., Epileptic Disor ...

Alpha-1-antitrypsin ameliorates inflammation and neurodegeneration in the diabetic mouse retina.

Diabetic retinopathy (DR) is the most common cause of blindness in the working age population. Early events of DR are accompanied by neurodegeneration of the inner retina resulting in ganglion cell loss. These findings together with reduced retinal thickness are observed within the first weeks of experimental DR. Besides, an inflammatory process is triggered in DR in which the innate immune response plays a relevant role. Alpha 1 antitrypsin (AAT), an inhibitor of serine proteases, has shown anti-inflammato...

Glyco-engineered CHO cell lines producing alpha-1-antitrypsin and C1 esterase inhibitor with fully humanized N-glycosylation profiles.

Recombinant Chinese hamster ovary (CHO) cells are able to provide biopharmaceuticals that are essentially free of human viruses and have N-glycosylation profiles similar, but not identical, to humans. Due to differences in N-glycan moieties, two members of the serpin superfamily, alpha-1-antitrypsin (A1AT) and plasma protease C1 inhibitor (C1INH), are currently derived from human plasma for treating A1AT and C1INH deficiency. Deriving therapeutic proteins from human plasma is generally a cost-intensive proc...

Females of HbAS genotype have reduced concentration of the malaria protective deoxyhemoglobin S than males.

The quantity of the intra-erythrocytic deoxyhemoglobin S (Hb S) affects the level of protection against malaria and also the sickling phenomenon. This study reports on significantly lower concentration of Hb S in females than males. Data came from 350 children, aged 12-47 months who participated in a phase 2b malaria vaccine trial. Hemoglobinopathy and G6PD deficiency typing was necessary to ascertain equal representation of these malaria protective traits across the vaccine cohorts. Hemoglobin types (HbAA,...


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