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Increased levels of homocysteine in patients with ulcerative colitis
Sabiye Akbulut1, Emin Altiparmak, Firdevs Topal
1Department of Gastroenterology, Kartal Kosuyolu High Specialty Education and Research Hospital, 34846 Istanbul, Turkey.
Insights
Serum homocysteine levels are higher in ulcerative colitis patients, but do not correlate with thrombosis risk. Folic acid deficiency is linked to elevated homocysteine in these patients.
Area of Science:
- Gastroenterology
- Hematology
- Clinical Biochemistry
Background:
- Ulcerative colitis (UC) is associated with an increased risk of thromboembolic events.
- Hyperhomocysteinemia, a condition of elevated serum homocysteine (Hcys), is a known risk factor for thrombosis.
- The relationship between Hcys levels and thrombosis in UC patients requires further investigation.
Purpose of the Study:
- To investigate serum homocysteine (Hcys) levels in patients with ulcerative colitis (UC).
- To determine the risk associated with altered Hcys levels for thrombosis development in UC patients.
Main Methods:
- Serum Hcys, vitamin B12, and folic acid levels were measured in 55 UC patients and 45 healthy controls.
- Clinical history and thromboembolic events were assessed in all participants.
- Multivariate regression analysis was used to identify risk factors for hyperhomocysteinemia.
Main Results:
- UC patients exhibited significantly higher serum Hcys levels compared to healthy controls (P < 0.001).
- Vitamin B12 and folic acid levels were lower in UC patients (P < 0.001).
- Folic acid deficiency was identified as the sole risk factor for hyperhomocysteinemia in UC patients. No significant difference in thromboembolic complication frequencies was observed between groups. Hcys levels did not correlate with a history of thrombosis in UC patients.
Conclusions:
- Elevated serum Hcys levels are present in UC patients.
- No correlation was found between Hcys levels and a history of prior thromboembolic events in UC patients.
- Folic acid deficiency is a significant factor contributing to hyperhomocysteinemia in UC.
Aim:
To investigate serum levels of homocysteine (Hcys) and the risk that altered levels carry for thrombosis development in ulcerative colitis (UC) patients.
Methods:
55 UC patients and 45 healthy adults were included. Hcys, vitamin B12 and folic acid levels were measured in both groups. Clinical history and thromboembolic events were investigated.
Results:
The average Hcys level in the UC patients was 13.3 +/- 1.93 micromol/L (range 4.60-87) and was higher than the average Hcys level of the control group which was 11.2 +/- 3.58 micromol/L (range 4.00-20.8) (P < 0.001). Vitamin B12 and folic acid average values were also lower in the UC group (P < 0.001). When multivariate regression analysis was performed, it was seen that folic acid deficiency was the only risk factor for hyperhomocysteinemia. Frequencies of thromboembolic complications were not statistically significantly different in UC and control groups. When those with and without a thrombosis history in the UC group were compared according to Hcys levels, it was seen that there were no statistically significant differences. A negative linear relationship was found between folic acid levels and Hcys.
Conclusion:
We could not find any correlations between Hcys levels and history of prior thromboembolic events.
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