Correlation between genotype and phenotype in patients with cystic fibrosis.
Correlation between genotype and phenotype in patients with cystic fibrosis.
复制标题
囊性纤维化患者基因型与表型的相关性。
DOI:
10.1056/nejm199310283291804
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发表时间:
1993
期刊:
影响因子:
--
通讯作者:
CysticFibrosisGenotype-PhenotypeConsortium
中科院分区:
文献类型:
--
作者:
CysticFibrosisGenotype-PhenotypeConsortium
BackgroundCystic fibrosis is the most common lethal autosomal recessive disorder among whites. Seventy-two percent of patients with this disease are homozygotes or compound heterozygotes for eight mutations of the cystic fibrosis transmembrane conductance regulator gene on chromosome 7: δF508, G542X, R553X, W1282X, N1303K, 621+1G-to-T, 1717-1G-to-A, and R117H. We studied the relation between genotype and phenotype in patients from 14 countries.MethodsEach of 399 patients who were compound heterozygotes for δF508and one other mutation was matched with the δF508homozygote of the same sex who was the closest in age from the same center. A paired analysis was performed of the following outcome variables: age at diagnosis, sweat chloride concentration, growth percentiles, pulmonary-function values, chest-film score, pseudomonas colonization, nasal polyps, pancreatic sufficiency, pancreatitis, diabetes mellitus, meconium ileus, distal intestinal obstruction syndrome, rectal prolapse, cirrhosis, and gallbladder disease.ResultsThe compound heterozygotes having the genotype R117H/δF508clearly differed from the age- and sex-matched δF508homozygotes: they more often had pancreatic sufficiency (87 percent vs. 4 percent, P<0.001), were older when the diagnosis was first made (mean [±SD] age, 10.2 ±10.5 vs. 2.5 ±4.3 years; P = 0.002), and had lower sweat chloride concentrations (80 ±18 vs. 108 ±14 mmol per liter, P<0.001). There were no statistically significant differences between δF508homozygotes and other compound heterozygotes with regard to any variable tested.ConclusionsPrenatal and prognostic counseling for patients with the R117H/δF508genotype should include the likelihood that they will have long-term pancreatic sufficiency. Patients with the other genotypes should expect the early onset of pancreatic insufficiency. For none of the genotypes studied can predictions be made about the occurrence of common complications or the severity or course of pulmonary disease.
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DOI:
--
发表时间:
1958
期刊:
A M A Journal of Diseases of Children
影响因子:
--
作者:
H. Shwachman;L. Kulczycki
通讯作者:
L. Kulczycki
影响因子:
56.9
作者:
J. Riordan;J. Rommens;N. Alon;R. Rozmahel;Z. Grzelczak;J. Zieleński;N. Plavsic;Jia-Ling Chou
通讯作者:
J. Riordan;J. Rommens;N. Alon;R. Rozmahel;Z. Grzelczak;J. Zieleński;N. Plavsic;Jia-Ling Chou
DOI:
10.1016/s0022-3476(05)80490-1
发表时间:
1991
期刊:
The Journal of pediatrics
影响因子:
--
作者:
Campbell3rd,PW;Phillips3rd,JA;Krishnamani,MR;Maness,KJ;Hazinski,TA
通讯作者:
Hazinski,TA
影响因子:
4
作者:
P. Gasparini;G. Borgo;G. Mastella;A. Bonizzato;M. Dognini;P. Pignatti
通讯作者:
P. Pignatti
影响因子:
3.1
作者:
J. Sola;M. Stone;B. Wise;P. Colombani
通讯作者:
P. Colombani