α‎1-Antitrypsin Deficiency Emphysema

Author(s):  
Edward C. Rosenow

• Thymoma • Teratoma • Castleman disease • Substernal goiter • Hodgkin disease, both pretreatment and posttreatment • Thymoma • Leiomyoma of the esophagus • Teratoma • Substernal goiter • Neurogenic lesions

2019 ◽  
Vol 3 (1) ◽  
pp. 97-105
Author(s):  
Mary Zuccato ◽  
Dustin Shilling ◽  
David C. Fajgenbaum

Abstract There are ∼7000 rare diseases affecting 30 000 000 individuals in the U.S.A. 95% of these rare diseases do not have a single Food and Drug Administration-approved therapy. Relatively, limited progress has been made to develop new or repurpose existing therapies for these disorders, in part because traditional funding models are not as effective when applied to rare diseases. Due to the suboptimal research infrastructure and treatment options for Castleman disease, the Castleman Disease Collaborative Network (CDCN), founded in 2012, spearheaded a novel strategy for advancing biomedical research, the ‘Collaborative Network Approach’. At its heart, the Collaborative Network Approach leverages and integrates the entire community of stakeholders — patients, physicians and researchers — to identify and prioritize high-impact research questions. It then recruits the most qualified researchers to conduct these studies. In parallel, patients are empowered to fight back by supporting research through fundraising and providing their biospecimens and clinical data. This approach democratizes research, allowing the entire community to identify the most clinically relevant and pressing questions; any idea can be translated into a study rather than limiting research to the ideas proposed by researchers in grant applications. Preliminary results from the CDCN and other organizations that have followed its Collaborative Network Approach suggest that this model is generalizable across rare diseases.


1999 ◽  
Vol 56 (3) ◽  
pp. 142-146 ◽  
Author(s):  
Ritscher ◽  
Russi

Der wichtigste pathogenetische Mechanismus bei der Entstehung des Lungenemphysem ist das Ungleichgewicht zwischen der proteolytisch wirkenden Elastase aus Granulozyten und ihres endogenen Inhibitors (Elastasen/Antielastasen-Hypothese). Diese Hypothese wird klinisch durch das Krankheitsbild des alpha1-Antritrypsin-Mangels alpha1-Proteaseinhibitor-Mangel), das bei Rauchern zur frühzeitigen Entwicklung eines Lungenemphysems führt, gestützt. alpha1-Proteaseinhibitor ist ein strukturell und molekulargenetisch charakterisiertes Akutphasenprotein, das in der Leber synthetisiert wird und über die Blutzirkulation in die Lunge gelangt. Seine zentrale Funktion ist die Inaktivierung überschüssiger Neutrophilen-Elastase im Lungengewebe, die bei Entzündungen freigesetzt wird und Elastin und andere Bestandteile der extrazellulären Bindegewebsmatrix zerstört. Wir beschreiben die seit der Entdeckung des API-Mangels im Jahr 1963 gewonnenen Erkenntnisse über Epidemiologie, Klinik, Genetik und Molekularbiologie dieser Krankheit.


1977 ◽  
Vol 38 (02) ◽  
pp. 0475-0485 ◽  
Author(s):  
Anna D. Borsodi ◽  
Ralph A. Bradshaw

SummaryThe plasma of individuals, hetero- or homozygous for α1-antitrypsin deficiency, contains greatly decreased amounts of antithrombin activity as assayed against factor Xa. However, heparin stimulation of the residual antithrombin activity is observed, which is comparable to that of normal plasma. Antithrombins isolated from both normal and α1-antitrypsin deficient plasma by a simplified procedure are indistinguishable in both properties and yields. The microheterogeneity observed on isoelectric focusing of both preparations can be eliminated by treatment with neuraminidase. Neither purified human antithrombin nor α1-antitrypsin, when assayed against bovine trypsin, is stimulated by heparin. These results clearly establish the unique natures of antithrombin and α1-antitrypsin and show that about 75% of the antithrombin activity measured in normal plasma is due to α1-antitrypsin. Estimates of anti thrombin III activity in normal plasma by assays dependent on enzymatic activity can probably be obtained only in the presence of heparin.


2018 ◽  
Author(s):  
Halwani Chiraz ◽  
Zoghlami Imene ◽  
Zgolli Cyrine ◽  
Akkari Khmaies ◽  
Ben Mhamed Rania
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