Serum Lactate and Ulcerative Colitis

Study Overview
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Brief Summary
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Patients presenting with severe symptoms of ulcerative colitis (UC) require hospital admission for urgent assessment and therapy. Endoscopic examination of the rectum and/or distal colon is often performed to assess severity and obtain tissue for histopathologic evaluation, but this is often extended to full colonoscopy to assess the extent of bowel involvement. Full colonoscopy is hazardous in this setting

Detailed Description
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Biomarkers like erythrocyte sedimentation rate (ESR) and C reactive protein (CRP) are used for monitoring the disease activity but present a low specificity and sensitivity in UC . There are fecal biomarkers with better performance for detecting disease activity in UC like fecal calprotectin and lactoferrin, however, are very expensive Platelets present granules with Interleukin 8 (IL-8) which is a potent neutrophil chemoattractant and its cytoplasm contains P-selectin that induces overproduction of superoxide and the formation of neutrophil-platelet aggregates, which are elevated in patients with UC. The inhibition of this aggregates suppress the appearance of colon inflammation The mean platelet volume (MPV) is correlated to the UC activity as also the increase of white blood count (WBC) mainly neutrophils. The interaction of neutrophil-platelet is a possible explanation of the high prevalence of thrombosis in UC due to the formation of Neutrophil Extracellular Traps (NETs) through Toll-like receptor 4 (TLR-4)

Official Title
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Serum Lactate and Mean Platelet Volume as Predicators for Acute Exacerbation in Patients With Ulcerative Colitis

Conditions
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Ulcerative Colitis

Intervention / Treatment
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* Diagnostic Test: serum lactate


Participation Criteria
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Eligibility Criteria
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Inclusion criteria: Any patient who is above age of 18 years old and diagnosed to have UC based on combination between clinical, laboratory, radiological, endoscopic and/or histopathological data whatever the course of the disease Exclusion criteria Patients with inflammatory bowel disease (IBD) other than UC as those with Crohn's disease or microscopic colitis Pregnant patients with ulcerative colitis. Patients with UC who are under age of 18 years old Patient's refusal

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| patients with ulcerative colitis<br>any patients with ulcerative colitis | Diagnostic Test: serum lactate<br>* assessment of serum lactate and mean platelets volume<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Accuracy (%) of serum lactate in prediction the acute flare of ulcerative colitis | By using the receiver operator characteristics curve, we can determine the best cutoff point of serum lactate to predict the acute flare of ulcerative colitis | one year |