Xinhua Full Media+丨 Follow the environment for smooth breathing -experts talk about summer and autumn pollen allergy

Xinhua News Agency, Beijing, August 13th.

Xinhua News Agency reporter Tian Xiaowang

Every year before and after the autumn, weeds in the northern summer and autumn of my country began to sow powder for two months. Patients with allergies of pollen followed, itchy, sneezing, and runny nose. And more and more patients in recent years. Medical experts believe that changes in environmental factors brought about by global climate warming and human social activities are an important cause of pollen allergies. Patients need to pay attention to environmental factors and avoid allergens and treatment in a targeted manner.

Allergic diseases have become a global health issue, and my country is no exception. Associate Professor Guan Kai, director of the Director of the Perverted Reaction Department of Peking Union Hospital, introduced that in some areas of northern my country, the prevalence of pollen allergies has exceeded 20%. In addition to the symptoms of conjunctivitis of the eyes and itching, and the symptoms of rhinitis with sneezing and runny nose, 37%of allergies will develop into allergic asthma within 5 years.

"Allergic diseases are the result of the common role of genetic and environmental factors." At the 6th Academic Annual Conference and 16th Concorded Disease Summit Forum held on the 13th, at the 13th Professor Yin Jia, President of the Physician Branch, said that environmental factors are closely related to the occurrence, development, and aggravation of allergies and asthma.

Environmental factors include external environmental factors such as diet, air pollution, drugs, chemical consumer goods, lifestyle, climate, biological diversity, urbanization, socioeconomic factors such as metabolism and inflammation Environmental factors such as microbial groups such as changes in microbial groups.

"Various environmental factors can affect epigenetic inheritance. By promoting the expression of chromosomal changes to affect the expression of genes, the incidence of allergic diseases and increased prevalence." Yin Jia said.

So, how does the external environment cause pollen to increase allergies? Yin Jia said that greenhouse gas effects, global warming can extend the season of pollen and increase the output of pollen, and may also enhance pollen sensitivity. Studies have found that a dolphin can produce hundreds of millions of pollen particles a year. In addition, the climate and geographical environment changes, and dolphin pollen will invade and spread to some places.

In addition, experts also said that with the increase in the number of vegetation brought by green operations, the surge in plant types and total pollination is difficult to avoid.

A sampling survey conducted by Professor Li Jing, the First Affiliated Hospital of Guangzhou Medical University, showed that in 2018, the sensitivity rate of pollen of pollen of plants such as poplars, dolphins, and wormwood in North my country in China increased significantly compared with 2008. The increase in the sensitivity rate of pollen is particularly obvious.

"Human allergic pollen is mainly transmitted through air flow, so it has the characteristics of cross -regional restrictions." Guan Kai quoted the research of Chinese atmospheric biology experts. Example: From the surrounding provinces, even a considerable part of it was produced in Mongolia, Russia, Kazakhstan and other countries, but mixed in the northwest wind was blown into the Beijing -Tianjin -Hebei region.

Experts believe that due to climate and geographical factors, even the same pollen, the distribution in different regions also has time and quantity differences. Therefore The distribution characteristics on the space, combined with the living place, choose different places for treatment. If you do not have conditions, you should pay more attention to the details of life. For example, indoor activities are the main, protect the protection during outdoor activities, choose to travel during the period when the pollen concentration is low, and perform personal cleaning in time after going home. If you try the above methods still have allergic symptoms, use effective and standardized anti -allergic drug treatment under the guidance of a professional doctor, and desensitization treatment should be performed if necessary.

Guan Kai also reminded that the proportion of rhinitis caused by allergies of different pollen and asthma is different, and weed pollen may be more likely to induce asthma than trees pollen. Therefore, patients with weeds in summer and autumn need to be alert to patients with asthma. Prevention and treatment measures, including allergenic specialty immunotherapy.

[Editor in charge: Feng Li]

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