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Pepsinogens are a class of endopeptidases that are secreted by the gastric epithelium and released into the circulation. Low serum pepsinogen I (PGI) and low serum pepsinogen I/pepsinogen II ratio (PGI/II ratio) are markers of gastric fundic atrophy, and have recently been shown to be associated with increased risk of esophageal squamous cell carcinoma(More)
GTP cyclohydrolase (GCH1) is rate limiting for tetrahydrobiopterin (BH4) synthesis, where BH4 is a cofactor for nitric oxide (NO) synthases and aromatic hydroxylases. GCH1 polymorphisms are implicated in the pathophysiology of pain, but have not been investigated in African populations. We examined GCH1 and pain in sickle cell anemia where GCH1 rs8007267(More)
Prostate cancer is the most common cancer in men in western countries, and its incidence is increasing steadily worldwide. Molecular changes including both genetic and epigenetic events underlying the development and progression of this disease are still not well understood. Epigenetic events are involved in gene regulation and occur through different(More)
BACKGROUND Helicobacter pylori can induce gastric atrophy in humans, which in turn increases gastric cancer risk. Whether H. pylori and gastric atrophy also affect the risk of esophageal squamous cell carcinoma (ESCC), however, remains unresolved. METHODS We performed a nested case-control study within the prospective Alpha-Tocopherol, Beta-Carotene(More)
The many binding studies of monoclonal immunoglobulin (Ig) produced by plasmacytomas have found no universally common binding properties, but instead, groups of plasmacytomas with specific antigen-binding activities to haptens such as phosphorylcholine, dextrans, fructofuranans, or dinitrophenyl. Subsequently, it was found that plasmacytomas with similar(More)
An immortalized human prostate stromal cell line (PS30) was previously established using recombinant retrovirus encoding human papillomavirus 16 gene products. In this study, we further characterize this stromal cell line for its potential use in a stromal-epithelial coculture model for prostate cancer prevention. Using reverse transcriptase-polymerase(More)
The identification of new genomic paradigms in lipoprotein and cardiovascular diseases will be accelerated by the application of the recent technological advances in nucleic acid sequencing. Presently, large-scale genomics facilities are equipped to accomplish this objective with a combination of "next-generation" DNA sequencing chemistries, largely focused(More)
Rearrangement of the light chain locus is believed to be an ordered process in which Iglambda rearrangements only occur if Igkappa rearrangements are found to be non-productive or self-reactive. Secondary rearrangements of the B-cell receptor (BCR) have shown, however, that rescue of abortive Igkappa rearrangements or autoreactive B cells can be achieved(More)