The vast majority of cases of cystic Þbrosis are the result of a single amino acid deletion (DF508) in the sequence of CFTR. The result of this deletion is that the DF-CFTR misfolds and does not obtain its normal residence in the plasma membrane of cells, but instead is proteolyzed. The F508-contain
Poster Session Abstracts: Abstracts 342–425
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 358 KB
- Volume
- 26
- Category
- Article
- ISSN
- 8755-6863
No coin nor oath required. For personal study only.
✦ Synopsis
We describe the clinical features of 20 patients from Sicily who have rare genotypes. For each patient, the age of diagnosis, the present age, the sweat test value for chloride, meconium ileus, diabetes, nasal polyps, age of lung colonisation by Pseudomonas aeruginosa and liver involvement are recorded. Pulmonary evaluation has based on the Crispin and Norman chest X-ray score and for patients over 6 years old the forced vital capacity (FVC), and forced expiration volume in one second (FEV1) were measured. Pancreatic evaluation was based on the steatocrit and fecal chimotripsine values. The 2 homozygous R553X mutation patients, 6 and 4 respectively years show a mild form of CF, PI,and no complications. The 6 homozygous G542X mutation patients show a mild/moderate form of CF, PI,intermittent presence or absence of Pseudomonas in sputum culture. Only one has hepatic cirrhosis. Of the 3 DF508/S549N patients, 2 were diagnosed for dehydration and 1 was surgically treated for nasal polyposis. The 2183AA®G mutation was found in 4 compound heterozygous patients: 3 were DF508/2183AA®G, 1 was G542X/2183AA®G. Of the 3 L1077P compound heterozygous, only 1 patient who has the R347P mutation is PS, 1 who is DF508/L1077P compound heterozygous has severe hepatic cirrhosis, the last one who has an unknown mutation is PS. Finally the DF508/3849 + 10kb T®C patient was diagnosed at 23 years is PS and his PS and his sweat chloride values were normal.
📜 SIMILAR VOLUMES
## Cystic Fibrosis Conference which occurs in the intermediate and Golgi compartments. This may reßect either a somewhat different route through the secretory pathway or interference with the enzymatic steps in oligosaccharide processing possibly by calnexin. The latter possibility is being explore
The nasal potential difference (PD) technique allows measurement of airway ion transport in human subjects in vivo. The characteristic abnormalities found in CF, namely increased Na + absorption and decreased cAMP-regulated Cl -secretion can be measured by sequential perfusion with amiloride, low Cl
tgAAVCF (AAV-CFTR) was used in a phase II, double-blind, randomized, placebo-controlled clinical trial to transfer CFTR cDNA into respiratory epithelial cells in the maxillary sinus of 23 CF patients with maxillary antrostomies. The maxillary sinuses serve as a surrogate model of CF lung disease bec
The disturbances in ionic conductances and water transport associated with mutations in CFTR ultimately result in impairments in mucociliary clearance (MCC). The resulting mucostasis provides a conducive environment for colonization by opportunistic microorganisms that can induce severe inßammatory
The Þrst evidence of Pa in respiratory secretion (sputum) cultures is a landmark for disease progression in cystic Þbrosis (CF). Virtually all CF patients acquire Pa during their lifetime. Until recently the bacterium was rarely eradicated once established. Although the course of pulmonary infection