[Cow-milk's protein allergy].

Milk contains more than 40 proteins and all of them may act like human species antigens. The main allergens are beta lactoglobulin, casein, alpha lactoalbumin and seroalbumin; beta lactoglobulin is a protein not existing in human species and is found in maternal milk in minimal quantities (mcg) due to milky products ingested by the mother, these small quantities are responsible of the highest number of sensitizations to this protein. This article reviews the allergy to the cow-milk's protein, also, a critical route to its diagnosis and management is planted.

[Status asthmaticus vs transtracheal membrane and cyclic neutropenia: a report of a case].

Introduction: Acute episodes of asthma are one of the most common respiratory emergencies, and status asthmaticus is the most severe respiratory impairment. Because "not all the wheezes are manifestations of asthma", the clinician needs to consider non asthmatic causes of wheezing in the differential diagnosis such as tracheal stenosis.

Clinical Case: 7 years old male, hispanic, non atopic background, with two previous cases of acute asthma.

[Chronic granulomatous disease. Report of a case and review of the literature].

Chronic granulomatous disease is a little common primary immunodeficiency affecting innate immune system. This article presents the case of an 8-year-old female patient whose disease started at three months of age with respiratory ways' infections. When she was two years old, she suffered another presentation of right basal pneumonia and right cervical mass, whose biopsy reported childhood chronic granulomatous disease.

[Non-surgical treatment in case of obstructive sleep apnea syndrome in children. Report of a case].

Consequences of obstructive sleep apnea syndrome in children include reduced performance during day, behaviour problems, diurmal hypersomnia, psychomotor development delay, severe forms of cor pulmonale, systemic hypertension, growing delay and death. This paper describes the clinical case of a 3-year-old girl with perennial symptoms of nasal obstruction characterized by nocturnal snoring, oral breathing, nasal voice, sleep apnea, nasal pruritus and rhinorrhea. Her treatment is also described.

[Adverse reactions to immunotherapy in pediatric patients].

Background: Specific immunotherapy involves administration of allergenic extract in order to reach clinical tolerance of the causal allergens in patients with allergic conditions. When administered, it can provoke side effects.

Objective: To identify systemic reactions after specific immunotherapy administration.

[The response to PPD and its relation to allergic diseases in children vaccinated at birth with BCG].

Background: The increase of the atopical disorders can be partially explained by two factors, the infectious disease in developed and developing countries, and the changes in immunization programs, infections such as measles, whooping cough or tuberculosis can modify the immune response. Recent studies have demonstrated that an inverse relation could exist between the response to late cutaneus hypersensitivity to Mycobacterium tuberculosis and atopic condition. Also, a strong positive response has been associated with low levels of IgE and Th1 cytokines.

[Eosinophilic proctocolitis induced by foods. Report of a case].

The food-induced eosinophilic proctocolitis is a major cause of blood-tinged stools and appears in the first two months of life. The infant is generally described as well, but the clinical features and laboratory results are often nonspecific. We present an early infant with fresh blood stools at 50 days.

[Allergen sensitization and asthma in children from 1 to 3 years of age].

Background: Asthma is a multifactorial disease. Children with atopy history could be sensitized with indoor and food allergens from early stages of the life and this predispose to develop asthma. Controversy exists about the factors that increase or decrease the risk of disease, such as breast feeding, early weaning, smoking exposition, immunizations.

[Cyclosporin A in atopic dermatitis].

Atopic dermatitis is a chronic inflammatory skin disease, with inherited predisposition. It has typical morphology and distribution. Patients generally can be controlled with the use of moisturizers and topical steroids.

[Hypersensitivity detected by skin tests to food in allergic patients in the Hospital Infantil de México Federico Gómez].

Background: The prevalence of food allergy depends on the feeding practices of different parts of the world. Peanuts and nuts cause a great part of allergies in the United States; in Spain and Portugal are commonly due to fish, milk; in Italy seafood and mustard in France. In Mexico we don't know the frequency of food allergy and involved groups of age or specific foods.