Specific urinary metabolites related to gut microbial metabolism differ between CD patients, UC patients, and controls. The emerging technique of urinary metabolic profiling with multivariate analysis was able to distinguish these cohorts.
(1)H NMR-based metabolic profiling has identified distinct differences in serum metabolic phenotype between CD and UC patients, as well as between IBD patients and controls.
The latency of 'reflexive' saccades (made in response to peripheral visual stimuli) was compared to that of 'voluntary' saccades performed in anti-saccade and symbolically cued paradigms. Manipulation of visual events at fixation was carefully controlled across all conditions. Reflexive saccade latency was significantly faster than the latency of all forms of voluntary saccades. Importantly, the latency of saccades made after presentation of a symbolic cue at central fixation (voluntary arrow-cue condition) was greater than that made in the anti-saccade paradigm that requires suppression of a reflexive response. It is suggested that the increase in latency of saccades made in the voluntary arrow-cue condition may reflect differences in programming a 'When' trigger signal for saccades made in the absence of a peripheral stimulus.
The idiopathic inflammatory bowel diseases (IBD), Crohn's disease and ulcerative colitis, may be complicated by extraintestinal manifestations (EIMs) in up to 40% of patients. Reports suggest that almost every organ system may be affected. The EIMs are a significant cause of morbidity and may be particularly distressing for the patient. Recent attempts have been made to define the phenotype of IBD in patients of different ethnicities. These studies have highlighted potential racial variations in the prevalence of specific EIMs, findings that are perhaps not surprising given the influence of genetic factors in their pathogenesis. Certain EIMs are related to the activity of the bowel disease, and their management often involves careful monitoring while the IBD is brought under control. Other EIMs, however, typically run a course independent of the IBD activity, and specific, targeted treatments may be required, even including biologic agents such as infliximab.
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