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 RESEARCH ARTICLE
Year : 2022  |  Volume : 54  |  Issue : 4  |  Page : 270-277

Simultaneous determination of lactulose, sucrose, sucralose, and mannitol using high-performance liquid chromatography-refractive index to estimate intestinal permeability in patients with active ulcerative colitis


1 Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh; Department of Biochemistry, Pt. Jawahar Lal Nehru Government Medical College, Chamba, Himachal Pradesh, India
2 Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
3 Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Mohali, Punjab, India
4 Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India

Correspondence Address:
Dr. Bikash Medhi
Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh - 160 012
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijp.ijp_90_22

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OBJECTIVES: The intestinal permeability (IP) of sugars and their derivatives has been widely used to assess mucosal damage in gastrointestinal diseases. Ulcerative colitis (UC) is a recurring and relapsing disease that causes inflammation of the gut. IP of sugars can be evaluated and correlated with the flare of UC. MATERIALS AND METHODS: A prospective study was conducted on 91 patients with active UC at the tertiary care center in North India. Mayo grading system assessed disease activity, and IP was assessed by measuring sucrose, lactulose, mannitol, and sucralose in urine samples from UC patients. A high-performance liquid chromatography (HPLC) method to detect all of these sugars simultaneously using a refractive index detector was developed and further validated in patients with UC. RESULTS: The analytical recovery rate of the tested sugars ranged from 95% to 146% in the urine matrix. The limit of detection and limit of quantification were 78.838 mg/L and 262.79 mg/L for sucrose, 84.994 mg/L and 283.31 mg/L for lactulose, 74.789 mg/L and 249.30 mg/L for mannitol, and 50.908 mg/L and 169.69 mg/L for sucralose. CONCLUSION: The standardized HPLC method is sensitive and suitable for the simultaneous detection and determination of different sugar moieties in the urine sample. Patients with UC can be evaluated indirectly for the flare by estimating the recovery rate of sugars through gut permeability. The procedure is noninvasive and thus improves the quality of life of chronically ill patients.






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