instruction:
In this task, you are given a passage which has a question and the context. You have to generate an answer to the question based on the information present in the context.
question:
Context: Eradication of Helicobacter pylori is not routinely recommended for the symptomatic relief and the prevention of gastric cancer in patients with functional dyspepsia. The present study investigated a useful indicator of H. pylori eradication in such patients by determining the optimal cutoff value of a 13C-urea breath test (UBT).', 'One hundred dyspeptic patients participated in the study. Dyspepsia was scored, and a 13C-UBT administered. A level of delta 13C-UBT of>4 per thousand was diagnosed as H. pylori-positive. After the stomach was endoscopically sprayed with phenol red, biopsy specimens were taken from the antrum, body and cardia of the stomach for the assessment of H. pylori density, and activity (neutrophil infiltration) and degree (lymphocyte infiltration) of gastritis.', 'Correlation between delta 13C-UBT and dyspepsia score was not found. Delta 13C-UBT significantly correlated with H. pylori density score in the total stomach (r = 0.53, P < 0.0001), neutrophil (r = 0.34, P = 0.0005) and lymphocyte score (r = 0.69, P < 0.0001). Twenty-six of the 100 subjects had a neutrophil score of >or=4, lymphocyte score of >or=4, and H. pylori score of >or=4. Their 95% confidence interval of mean was 58.2 per thousand, which reflects moderate to marked acute and chronic gastritis, and dense H. pylori colonization.\Question: Is delta ( 13 ) C-urea breath test value a useful indicator for Helicobacter pylori eradication in patients with functional dyspepsia?
answer:
The 13C-UBT is a reliable semiquantitative test to assess H. pylori density and the activity and degree of gastritis. It is proposed that H. pylori eradication therapy might be beneficial for patients with functional dyspepsia with a delta 13C-UBT of >58.2 per thousand.

question:
Context: The CARD14 gene encodes a protein that enhances nuclear factor (NF)-B activation and the upregulation of proinflammatory pathway genes. CARD14 is upregulated in psoriatic vs. normal skin, and rare and common CARD14 variants have been associated with the risk of developing psoriasis. Our hypothesis was that CARD14 variants could also influence the response to antitumour necrosis factor (anti-TNF) therapies among patients with psoriasis.', 'To determine whether CARD14 gene variants were linked to a significant positive anti-TNF response in patients with psoriasis.', 'DNA from 116 patients with psoriasis was subjected to next-generation sequencing of the CARD14 gene. All of the patients were nonresponders or had contraindications to conventional systemic treatments.', 'A reduction of at least 75% in Psoriasis Area and Severity Index (PASI 75) at week 24 was considered a positive response to treatment. In total 116 patients (79 responders and 37 nonresponders) were next-generation sequenced, and we identified five nucleotide variants that would result in missense amino acid changes. These variants were determined in all of the patients, and allele and genotype frequencies were compared between the two groups. We found a significantly higher frequency of rs11652075 CC (p.Arg820Trp) among the group with a positive response (P = 0.01, odds ratio 3.71, 95% confidence interval 1.30-10.51). Furthermore, among responders, six patients were heterozygous carriers of the rare p.Glu422Lys variant, and two patients were heterozygous for p.Arg682Trp (P = 0.04).\Question: Do common and rare CARD14 gene variants affect the antitumour necrosis factor response among patients with psoriasis?
answer:
The common CARD14 p.Arg820Trp variant might have a significant effect on the response to anti-TNF therapies among patients with psoriasis. In addition, rare CARD14 missense variants could also predispose to a better response.

question:
Context: To study the outcome of EEG from patients with Chiari I malformations and nonspecific EEG abnormalities, after posterior fossa decompression and CSF flow normalization.', "Three 'apparently asymptomatic' children who had been diagnosed with Arnold-Chiari type 1 EEG abnormalities and who exhibited (a) a wide range of abnormalities according to common anatomical Chiari MRI classifications (Elster AD, Chen MY. Chiari I malformations: clinical and radiologic reappraisal. Radiology 1992;183:347-53), (b) a lack of specific, clinical signs of increased intracranial pressure, and (c) apparently unrelated, EEG-nonspecific abnormalities (focal intermittent rhythmic delta activity (IRDA)--solely in patients 1 and 3, and with focal IRDA plus spikes and spike waves of high voltage in patient 2). Standard EEGs were recorded before surgery and within one month of surgery, which was performed in conjunction with intraoperative echo-Doppler ultrasonography to control CSF flow. Subsequent EEGs and clinical follow-ups were performed within 6-12 months of surgery.", 'In all patients, intraoperative echo-Doppler ultrasonographic control demonstrated poor CSF flow, which was completely restored by posterior fossa decompression. In all patients, the EEG abnormalities disappeared within one month of surgery and the EEGs were normal at follow-up.\Question: Does surgery remove EEG abnormalities in patients with Chiari type I malformation and poor CSF flow?
answer:
A new CNS symptom, identified as focal IRDA alone or focal IRDA plus spikes and spike waves of high voltage in the EEG, seems to be associated with poor CSF flow in 'apparently asymptomatic' patients with Chiari type I malformations.