Tau Protein Phosphorylated at Threonine-231 is Expressed Abundantly in the Cerebellum in Prion Encephalopathies.

Background: Transmissible spongiform encephalopathies (TSEs) are rare neurodegenerative disorders that affect animals and humans. Bovine spongiform encephalopathy (BSE) in cattle, and Creutzfeld-Jakob Disease (CJD) in humans belong to this group. The causative agent of TSEs is called "prion", which corresponds to a pathological form (PrPSc) of a normal cellular protein (PrPC) expressed in nerve cells.

[Association between Helicobacter pylori and allergic and non-allergic chronic urticaria].

Background: Chronic urticaria is characterized by swelling and itchy hives presenting remissions and exacerbations, for six weeks or more, which may or may not be accompanied by angioedema. Helicobacter pylori infection has been associated with various diseases among them chronic urticaria.

Objective: To determine the association between H.

[Labor absenteeism in a social security institution and some related factors].

Objective: To analyse the sociocultural and organizational factors of the health services related to the unplanned absenteeism.

Material And Methods: By means of a cross and descriptive analysis, a group of workers from a Social Security Institution was studied. The previous year, this group presented a significant absenteeism, which means that the worker had stayed away from his work-place more than 12 working days in the year of 2003.

[Impact of an active educational strategy in arterial hypertension].

Objective: To evaluate the efficacy of an active-participative educational intervention on the average arterial pressure, index of corporal mass and level of knowledge in hypertensive patients.

Methods: A quasi-experimental open study was carried out. An active-participative educational intervention 4 h daily during a period of 5 days twice monthly for 3 months focused on themes related to arterial hypertension in patients with high blood pressure.