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We evaluated and measured by high performance liquid chromatography the plasma amino acid levels in 11 female patients with anorexia nervosa during a period of significant loss of body weight, compared with 11 healthy age-matched controls. Total amino acid and total branched-chain amino acid levels were similar in both groups, however significantly higher levels of glycine and ornithine were found in anorexia nervosa patients, as well as significantly lower levels of leucine, tyrosine and lysine compared with controls. The glycine/valine and phenylalanine/tyrosine ratios were significantly higher in anorexia nervosa patients than in control subjects. The levels and ratios of other amino acids were within the normal range, with no significant differences between the two groups. Changes in the plasma amino acid profile in anorexia nervosa patients can be explained by chronic severe malnutrition and prolonged stress.

BackgroundCapnocytophaga canimorsus is a commensal bacterium found in the saliva of dogs and cats. Clinically significant infections in humans after a bite are often associated with the presence of immune deficiency. Early recognition and appropriate treatment are crucial for patient survival. In addition, patients with immune deficiency are susceptible to serious life-threatening nosocomial infections, which may also influence the prognosis of patients with Capnocytophaga canimorsus infection.Case presentationA 62-year-old Caucasian female was admitted with septic shock, acute respiratory distress syndrome, acute renal failure, metabolic acidosis and disseminated intravascular coagulation after suffering two small bites from her dog. She had received a splenectomy during childhood. The patient survived after early empiric treatment with antibiotics and intensive supportive care, including ventilation support, a high dose of noradrenalin, and continuous venovenous hemodialysis applied prior to the definitive diagnosis of Capnocytophaga canimorsus sepsis. She improved within 2 weeks but, despite all efforts to prevent nosocomial infection, her hospital course was complicated by Enterococcus species and Candida albicans pleuropneumonia that prolonged her stay in the intensive care unit, and necessitated ventilation support for 2 months.ConclusionSevere Capnocytophaga canimorsus sepsis may be complicated by life-threatening nosocomial infection in immunocompromized patients. The prophylactic application of antibiotics after a dog bite should be considered in high-risk individuals with immune deficiency in order to prevent both Capnocytophyga canimorsus sepsis and serious nosocomial complications.

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