Detection of Herpesvirus DNA (CMV, EBV, HHV-6 and HSV) in Colonic Tissue: Impact on Ulcerative Colitis Flare-up
Detection of Herpesvirus DNA (CMV, EBV, HHV-6 and HSV) in Colonic Tissue: Impact on Ulcerative Colitis Flare-up
Flare-up of ulcerative colitis (UC) is characterized by the inflammation of colon mucosa that
 requires the use of immunosuppressive therapies. In previous studies, the active role of
 cytomegalovirus (CMV) has been demonstrated, with a correlation between the cytomegalovirus
 DNA ((deoxyribonucleic acid) load in the inflamed tissue and the resistance to successive
 lines of immunosuppressive therapy (Roblin et al., Am J Gastroenterol 2011). The main aim of
 this monocentric prospective study is to evaluate the DNA viral load by qPCR (Polymerase
 Chain Reaction) of 3 herpesviruses (Epstein-Barr virus, herpes virus 6 and herpes simplex)
 together with that of CMV in colonic mucosa depending of the local inflammation
 (endoscopically normal region, inflamed mucosa or ulcer) in patients suffering of moderate to
 severe UC flare-up (Mayo score >6 with endoscopic score higher or equal than 2). The viral
 load will also be correlated to the Mayo endoscopic score and the response to
 immunosuppressive drugs (steroid and anti-TNF (Tumor Necrosis Factor) monoclonal antibodies).
Inclusion Criteria:

 -  Age>18 years

 -  Voluntary to participate to the study

 -  Flare-up of ulcerative colitis with Mayo score >6

 -  Ability to receive steroid or anti-TNF therapy

 -  Agree the rectosigmoidoscopy and the therapies

 Exclusion Criteria:

 -  Age <18 years

 -  Pregnancy

 -  Disagree the rectosigmoidoscopy or the therapies

 -  Participation to the evaluation of a new therapy

 -  Colectomy (partial or total)

 -  Contraindication of steroid or anti-TNF therapy

 -  Anticoagulant drugs