[Severe atopic dermatitis and hiper-IgE].

Background: Atopic dermatitis (AD) is a chronic inflammatory and complex skin disease, typically occurring in individuals with a personal or family history of atopy. It is characterized by lesions of dermatitis, pruritus and dry skin (xerosis) that evolve with chronic course and intermittent outbreaks alternating with remission phases. AD appears from 5-15 % of the general population, 10-20 % of the pediatric population, and 1-3 % of the adult population.

Salivary Immunoglobulin Gene Expression in Patients with Caries.

Background: Immunoglobulins mediate the host's humoral immune response are expressed in saliva.

Aim: To quantify the , , and gene expression in the saliva of Mexican patients with caries in mixed and permanent dentition.

Subjects And Methods: This was a comparative cross-sectional study.

[Aerobiological study of anemophilous pollens in the city of Toluca, Mexico].

Background: Due to the high incidence of allergic diseases in Mexico, caused by exposure to pollens, there have been several studies of plants and atmospheric pollens in various regions in the last decades. In the city of Toluca there have been two previous pollen samplings using gravimetric methodology, for which it is necessary to obtain new samplings with a standardized volumetric technique, in order to have updated and confident results of a region with considerable environmental changes in the last years.

Objective: To determine the different types of pollens, seasonal variations and behavior in the four seasons of the year.

Polymorphisms in Glutathione S-Transferase M1, T1, and P1 in Patients with Chronic Periodontitis: A Pilot Study.

Background. Although the direct cause of chronic periodontitis is bacterial infection, the progression of this disease depends on genetic and environmental factors, and smoking is a known risk factor in the development and severity of the disease. An individual's susceptibility may be influenced by polymorphisms in the glutathione S-transferase genes.

Effect of three fluoride compounds on the growth of oral normal and tumor cells.

Aim: Comparative study of the growth inhibition by different types of fluoride compounds used in dentistry has been limited. We investigated the effects of sodium fluoride (NaF), diammine silver fluoride [Ag(NH3)2F] and 5-fluorouracil (5-FU) on the growth of eleven human normal and tumor cells in total.

Materials And Methods: Viable cell number was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay.