Anti-Ulcer Agents/therapeutic use; Antioxidants/isolation & purification; Antioxidants/therapeutic use; Flavanones/therapeutic use; Plant Extracts/therapeutic use; Zingiberaceae/chemistry; Animals; Anti-Ulcer Agents/isolation & purification; Anti-Ulcer Agents/toxicity; Antioxidants/toxicity; Biphenyl Compounds/chemistry; Cell Line; Cell Survival/drug effects; Chemotaxis, Leukocyte/drug effects; Cyclooxygenase 1/metabolism; Cyclooxygenase 2/metabolism; Disease Models, Animal; Ethanol/pharmacology; Female; Flavanones/isolation & purification; Flavanones/toxicity; Free Radicals/chemistry; Gastric Mucosa/drug effects; Gastric Mucosa/metabolism; Gastric Mucosa/pathology; Macrophages/drug effects; Macrophages/enzymology; Male; Methanol; Mice; Picrates/chemistry; Plant Extracts/isolation & purification; Plant Extracts/toxicity; Rats; Rats, Sprague-Dawley; Rhizome/chemistry; Stomach Ulcer/chemically induced; Stomach Ulcer/drug therapy; Stomach Ulcer/metabolism; Stomach Ulcer/pathology; Toxicity Tests, Acute