[Primary biliary cirrhosis-autoimmune hepatitis overlap syndrome in a patient with chronic hepatitis B infection].

We describe the case of a female patient with a previous diagnosis of primary biliary cirrhosis (PBC) and chronic hepatitis B in inactive phase who developed increased transaminase levels with no evidence of hepatitis B virus reactivation while receiving ursodeoxycholic acid treatment. A liver biopsy showed changes compatible with overlapping autoimmune hepatitis (AIH). Budesonide treatment achieved normalization of transaminase levels.

[Implication of calcium deficiency in the progress of periodontal diseases and osteoporosis].

Several authors have established a relationship between osteoporosis and periodontal disease. The ageing process is associated with a loss of both oral and total bone mass. It has been shown that a reduction of bone mineralization aggravates pathological periodontal changes, resulting in less support for the teeth.

[Underestimation of energy intake in a group of young female university students of Madrid].

The validity of estimates of energy intake in a group of young women, and the influence of body mass index (BMI) and concern over bodyweight on such estimates, were determined with the aid of a food record intake. The study subjects were a group of female university students between 20 and 32 years of age. Participants maintained a steady weight over the month-long experimental period.

Differences in diet and food habits between patients with gallstones and controls.

Objective: To compare the food, energy, macronutrient and micronutrient intake of patients with gallstones to those of a control group of similar demographic characteristics.

Design: Patient-control study.

Subjects: 54 gallstone patients and 46 control subjects.