Background
Mutations in DOCK8 cause a combined immunodeficiency (CID) also classified as autosomal-recessive hyper-IgE syndrome (HIES). Recognizing patients with CID / HIES is of clinical importance due to a difference in prognosis and management.
Objectives
Define the clinical features that distinguish DOCK8 deficiency from other forms of HIES and CIDs; study the mutational spectrum of DOCK8 deficiency; and report on the frequency of specific clinical findings.
Methods
Eighty-two patients from 60 families with CID and the phenotype of autosomal-recessive HIES with (64 patients) and without (18 patients) DOCK8 mutations were studied. Support vector machines were used to compare clinical data from 35 patients with DOCK8 deficiency with 10 AR-HIES patients without a DOCK8 mutation and 64 patients with STAT3 mutations.
Results
DOCK8-deficient patients had a median IgE of 5,201 IU, high eosinophil levels of usually at least 800/µl (92% of patients), and low levels of IgM (62%). About 20% of patients were lymphopenic, mainly due to low CD4+ and CD8+ T cells. Fewer than half of the patients tested produced normal specific antibody responses to recall antigens. Bacterial (84%), viral (78%), and fungal (70%) infections were frequently observed. Skin abscesses (60%) and allergies (73%) were common clinical problems. In contrast to STAT3 deficiency, there were few pneumatoceles, bone fractures, and teething problems. Mortality was high (34%). A combination of five clinical features was helpful in distinguishing patients with DOCK8 mutations from those with STAT3 mutations.
Conclusions
DOCK8 deficiency is likely in patients with severe viral infections, allergies, and/or low IgM levels, who have a diagnosis of HIES plus hypereosinophilia and upper respiratory tract infections in the absence of parenchymal lung abnormalities, retained primary teeth, and minimal trauma fractures.
Summary• The consequences of increasing atmospheric carbon dioxide for long-term adaptation of forest ecosystems remain uncertain, with virtually no studies undertaken at the genetic level. A global analysis using cDNA microarrays was conducted following 6 yr exposure of Populus × euramericana (clone I-214) to elevated [CO 2 ] in a FACE (free-air CO 2 enrichment) experiment.• Gene expression was sensitive to elevated [CO 2 ] but the response depended on the developmental age of the leaves, and < 50 transcripts differed significantly between different CO 2 environments. For young leaves most differentially expressed genes were upregulated in elevated [CO 2 ], while in semimature leaves most were downregulated in elevated [CO 2 ].• For transcripts related only to the small subunit of Rubisco, upregulation in LPI 3 and downregulation in LPI 6 leaves in elevated CO 2 was confirmed by ANOVA . Similar patterns of gene expression for young leaves were also confirmed independently across year 3 and year 6 microarray data, and using real-time RT-PCR.• This study provides the first clues to the long-term genetic expression changes that may occur during long-term plant response to elevated CO 2 .
Thematic motives for eudaimonic growth were more closely tied to well-being than were affective evaluations of either changes from bad to good (redemption) or one's becoming better (self-improvement).
We developed a chronic obstructive pulmonary disease (COPD) patient-reported experience measure (PREM-C9). 174 patients with COPD (86 [49%] with a confirmed diagnosis and 88 [51%] with a self-reported diagnosis of COPD) completed a 38-item list, COPD Assessment Test (CAT) and Hospital Anxiety and Depression Scale (HADS). Hierarchical and Rasch analysis produced a 9-item list (PREM-C9). It demonstrated fit to the Rasch model (χ² p=0.33) and correlated moderately with CAT (r=0.42), HAD-anxiety (r=0.30) and HAD-depression (r=0.41) (p<0.05). A substudy confirmed its ability to detect change prepulmonary and postpulmonary rehabilitation. The PREM-C9 is a simple, valid measure of experience of patients living with COPD, validated in this study population with mild to very severe disease; it may be a useful measure in research and clinical audits.
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