Higher plasma homocysteine is associated with increased risk of developing colorectal polyps.

Colorectal adenomas are considered to be precursors of colorectal cancer. B-vitamins (i.e.

Safety and efficacy of adefovir therapy for lamivudine-resistant hepatitis B virus infection in renal transplant recipients.

Background/purpose: The emergence of lamivudine (LAM)-resistant mutants after prolonged LAM therapy may reduce its therapeutic effects against hepatitis B virus (HBV). Adefovir dipivoxil (ADV) is an effective treatment of LAM-resistant HBV infections. However, only limited data are available regarding the safety and efficacy of ADV for treating HBsAg-positive renal transplant recipients.

Human papilloma virus 16 E6 oncoprotein associated with p53 inactivation in colorectal cancer.

Aim: To investigate the association between human papilloma virus (HPV) infection and colorectal cancer.

Methods: Sixty-nine patients with pathologically confirmed primary colorectal cancer including 6 stage I, 24 stage II, 21 stage III, and 18 stage IV patients were enrolled in this study to investigate whether HPV 16 could be involved in colorectal tumorigenesis. Nested-polymerase chain reaction (nested-PCR) was used to detect HPV16 DNA in colorectal tumor tissues and further confirmed by in situ hybridization (ISH).

Extranodal marginal zone B-cell lymphoma of the gastrointestinal tract sparing only the esophagus: a case report.

Lymphomas presented in any organ or tissue other than lymph nodes or the spleen are considered primary extranodal non-Hodgkin's lymphomas, and the most common non-Hodgkin's lymphomas are of the gastrointestinal tract. The most common histological subtypes are marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue and diffuse large B-cell lymphoma, and typically only one to two organs are affected. Patients present with a wide variety of vague complaints, making early diagnosis problematic.

Bedside colonoscopy for critically ill patients with acute lower gastrointestinal bleeding.

Objective: To determine the clinical impact of bedside colonoscopy for critically ill patients with acute lower gastrointestinal (GI) bleeding.

Design And Setting: A 3-year retrospective analysis (chart review). Medical intensive care unit (ICU) of a 1,312-bed tertiary-care center in Taiwan.