Olea europaea in Mexico City

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Slide 1 : CLINICAL SPECTRUM OF SENSITIZATION TO OLEA EUROPAEA IN A GROUP OF PATIENTS IN MEXICO CITY. Morfin-Maciel Blanca María Castillo-Morfin Blanca María HOSPITAL ANGELES MOCEL MEXICO CITY.
Slide 2 : HISTORY OLIVE TREE: Antiquity: symbol of wisdom, force, peace, victory; of the resurrection and immortality. A divine origin. Egyptians: a gift of Isis. Greeks: Athena. Panatheneas celebrations: winners were crowned with olive tree branches, and this continued from the beginning of the Olympic Games in the 776 a.c. Phoenicians seeded and processed the olive tree. Old Testament: Hebrews compared it with the fecundity, sign of the alliance with God. Oil used like food, fuel in lamps, medicine, cosmetic and like religious offering. Romans Spain America.
Slide 3 : HISTORY: 1521. Spaniards conquered Mexico-Tenochtitlan. Hernan Cortes distributed fertile earth to the soldiers. Culture of the olive tree introduced by the Franciscans, in 1531. Tulyehualco, the first place of all America in cultivating it. Olive tree gave rise to an important industry. The Indians incorporated olives and the olive oil to their diet. Sources of work of enormous importance for the economy. During centuries XVII and XVIII, the mexican olive covered the necessities of the Spaniards living in Mexico.
Slide 4 : HISTORY: Important production: jealousies of Spain Crown. The fear to the emancipation caused that Carlos III signed the Real certificate in 1774, prohibiting the culture of olive trees in Mexico. In 1777 was ordered the complete destruction of all the existing olive trees, giving rise to a economic stagnation in Mexico. Some olive trees in the Southeastern of Mexico City (Tulyehualco), from centuries XVI to the XVII.
Slide 5 : MAP OF MEXICO CITY Tulyehualco
Slide 6 : BACKGROUND: The olive tree owns to the family of Oleaceas. The olive tree adapts to very different grounds. In Mexico, the olive trees are few and located in a small zone of the Southeastern of Mexico City (Tulyehualco), thus allergist rarely looks deliberately for sensitization to this tree.
Slide 7 : OBJECTIVE: Knowing the shortage of this culture in Mexico City, the objective of this study is to determine the prevalence of sensitization to Olea europaea in a group of patients.
Slide 8 : METHODS: A retrospective chart review of all patients with pollen allergy, between August 2003 and August 2004, in a medical office. Skin prick test were made with IPI ASAC® and Alerquim® allergenic extracts. Spirometry. Pneumotoscopy. CT of paranasal sinuses.
Slide 9 : RESULTS: The sensitization to Olea europea was found in 41.5% (96 patients). aged 7-57 years (median 26.2 ? 15.6). Female: male. 1.43:1 The median IgE levels was 387.2 UI/ml (5.2-1862 UI/ml).
Slide 10 : SYMPTOMS: 95.8% allergic rhinitis. 58.3% asthma. 66.6% chronic sinusitis. 36.4% otitis media with effusion. 29.1% allergic conjunctivitis. 16.6% atopic dermatitis. 16.6% oral allergy syndrome. 4.5% nasal polyposis.
Slide 11 : RESULTS: Patients with asthma (n=56). 50% intermittent asthma. 28.6% mild persistent asthma. 16% moderate persistent asthma. 5.4% severe persistent asthma.
Slide 12 : RESULTS: The prevalence of positive skin prick test to Olea europea was higher on April (27.2%), and lower on November (2.5%) 4.1% monosensitization to Olea europaea.
Slide 13 : Osmanthus americanus.
Slide 14 : Clinical spectrum of sensitization to Olea europaea. Patients (n)
Slide 15 : Patients with olive allergy and sensitization to other trees. Patients (n)
Slide 16 : Patients with olive allergy and sensitization to weeds and grasses. Patients (n)
Slide 17 : Patients with olive allergy and oral allergy syndrome (n=40) Patients (n)
Slide 18 : Calendarization of positive skin prick test to Olea europaea. % Patients
Slide 19 : CONCLUSION: This study demostrate that Olea europea is an important sensitizer in Mexico City. Cross-reaction to other pollens belonging to Oleaceae family, possibly Osmanthus americanus, could explain monosensitization to olive tree. Further studies are needed to evaluate the role of Olea europea in allergic diseases in American countries.
Slide 20 : REFERENCES: 1.- March L y Ríos A. El libro del Aceite y la Aceituna. Alianza Editorial, S.A., 1999 1ª. Edición. Madrid, España. 2.-RenéI. Flores Vega. www.mexicodesconocido.com.mx 3.- www.xochimilco.df.gob.mx 4.- Delfin Guillaumin ME. Los olivares de Tacubaya. México en la época colonial. Ponencia presentada para el V Coloquio de Tacubaya Pasado y Presente., ENAH, INAH, México DF, Junio 2004. 5.- Sergio Yagüe. www.portalbonsai.com.

 



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