Objective:To observe the intervention effects of different concentrations of dexamethasone on the general situation and pulmonary histology of chronic asthma rats,and to explore the suitable intragastric dose of dexam...Objective:To observe the intervention effects of different concentrations of dexamethasone on the general situation and pulmonary histology of chronic asthma rats,and to explore the suitable intragastric dose of dexamethasone in the rat model of chronic asthma.Methods:75 healthy male Sprague-Dawley(SD)rats were randomly divided into normal group,M group,dexamethasone low dose,middle dose and high dose group by random number table.The rat model of chronic asthma was established by sensitization and challenge of ovalbumin(OVA).From the 20th day of the experiment,dexamethasone groups were given intragastric administration of 0.0625mg/(kg·d),0.125mg/(kg·d)and 0.5mg/(kg·d),respectively.The general situation of rats was observed and recorded.The histological changes of rat lungs were observed by HE staining and Masson staining.Results:The degree of inflammatory infiltration of bronchus and surrounding tissue in the M group was significantly higher than that in the normal group(P<0.01).The thickness of airway wall and smooth muscle and the deposition of airway collagen in the M group were significantly higher than those in the normal group(P<0.01).After one week of intervention,the average daily food intake and body mass of rats in the high dose group were significantly lower than those in the M group(P<0.01),and the increase in body mass in the middle and low dose groups was significantly slower than that in the M group(P<0.01).After 2 weeks of intervention,the average daily food intake of rats in the middle and low dose groups was significantly lower than that in the M group(P<0.01).After 4 weeks of intervention,the average daily food intake in the middle and low dose groups was significantly lower than that in the low dose group(P<0.01).The inflammatory infiltration of lung tissue in the middle and low dose groups was significantly less than that in the model group,and the thickness of airway wall and smooth muscle and the deposition of airway collagen in the middle and low dose groups were significantly lower than those in the model group(P<0.01).There was no difference between the two groups(P>0.05).A large number of rats in the high dose group died after 5 times of intervention.Three rats died in the DEXM group at the 5th week of intervention,and there was no death in the other group.Conclusion:Both middle and low doses of dexamethasone can be used as the positive control dose in the experiment of chronic asthmatic rats,but the late side effects of low dose of dexamethasone are less,so the low dose of dexamethasone may be a safer and more suitable dose for the experiment of chronic asthmatic rats.展开更多
Background: Poverty is an important surrogate marker for obstructive airway diseases (OAD). Slum constitutes a habitat wherein various poverty related parameters are perpetually prevalent in the ambience. 1/6th of wor...Background: Poverty is an important surrogate marker for obstructive airway diseases (OAD). Slum constitutes a habitat wherein various poverty related parameters are perpetually prevalent in the ambience. 1/6th of world population lives in slums yet there is no information regarding their health status in context to asthma and COPD. Aims: We investigated the prevalence of asthma and chronic-bronchitis symptoms and associated risk-factors in slum habitats of Pune city. Methodology: 7062 adult slum-dwellers living in 12 slums of Pune city were cross-sectionally interviewed by local healthcare workers with respiratory health questionnaire which was designed using respiratory symptoms of validated European Community Respiratory Health Survey (ECRHS II) questionnaire and International Union against Tuberculosis and Lung Disease (IUATLD) bronchial symptoms questionnaire. Results: The overall prevalence of selfreported asthma symptoms was 10% (18 - 40 years: 6.5%;>40 years: 13.5%). The overall prevalence of chronic bronchitis was 8.5% [18 - 40 years: 7% (males: 7%, females: 7%);>40 years: 10% (males: 10%, females: 10%)]. Increasing age (p = 0.00), female gender (p = 0.001), unemployment (0.00) current smoking (p = 0.00) and ex-smoking (p = 0.004) emerged as significant risk factor for asthma. While, ex-smoking (p = 0.004) and low-education status (p = 0.00) emerged as significant risk factors for chronic bronchitis. Conclusion: In slums reporting of asthma and chronic-bronchitis symptoms was much higher than what has been reported earlier from India. Asthma was commonly seen in females, old age, unemployed and ever-smokers. While chronic bronchitis was commonly seen in ex-smokers and illiterate subjects. Chronic bronchitis was equally distributed amongst male and females, despite 0% prevalence of smoking in females.展开更多
A 53-year-old man with a history of blood transfusion at the age of 20 was admitted to our hospital because of liver dysfunction. He had bronchial asthma when he was 18 years old, which naturally resolved within 2 yea...A 53-year-old man with a history of blood transfusion at the age of 20 was admitted to our hospital because of liver dysfunction. He had bronchial asthma when he was 18 years old, which naturally resolved within 2 years. However, his bronchial asthma recurred at the age of 45 and was treated with oral theophylline. He was diagnosed as having chronic hepatitis C based on the histological and clinical findings, and then interferon (IFN) therapy was administered. The frequency of bronchial asthma attack was gradually decreasing after IFN therapy with marked improvement of hypereosinophilia. He achieved sustained viral response (SVR) and his bronchial asthma did not worsen even after the cessation of IFN. Hepatitis C virus (HCV) infection and IFN therapy were considered in the remission of asthma in this case. HCV infection could be the cause of bronchial asthma, especially in patients with late appearance of asthma.展开更多
Although asthma and chronic obstructive pulmonary disease(COPD) are distinct airway diseases characterized by chronic inflammation, in some cases distinguishing between them is puzzling. For example, chronic smoking l...Although asthma and chronic obstructive pulmonary disease(COPD) are distinct airway diseases characterized by chronic inflammation, in some cases distinguishing between them is puzzling. For example, chronic smoking leads asthmatic inflammation to a differentiated pattern resembling the COPD inflammation, and in some cases to fixed obstruction as in COPD, and on the other hand, few COPD patients may present with airway reversibility. ACOS is the condition sharing features encountered both in asthma and COPD. Asthma-COPD overlap syndrome(ACOS) represents a diagnostic challenge in the clinical practice, since there is lack of specific indicators to distinguish it from asthma or COPD, and moreover, genetic risk factors, underlying pathology and molecular pathways, clinical characteristics, therapeutic interventions, response to treatment and prognosis are poorly described. The management of ACOS is recommended to be individualized and should target on the maximum effectiveness with the least side effects. Combination therapy with ICS/LABA or LAMA, or newly developed specific anti-eosinophil therapies and treatments specifically targeting neutrophils might be of relevance in the management of ACOS, but studies are needed in order to assess the response and prognosis. Based on the current knowledge about ACOS thus far, it would be recommended that we approached chronic obstructive airway disease rather by describing than by classifying the disease; this would allow us to have a picture that better describes the disease and to implement an individualized therapeutic approach, according to the custom phenotype. Nevertheless, more studies are needed in order to clarify several important issues with regard to ACOS, such as the genetic risk factors for developing ACOS, the links between genotype and phenotype, the molecular pathways and underlying mechanisms of ACOS, the identification of possible specific biomarkers for diagnosis and targeted treatment, the optimal therapeutic interventions, and finally, the prognosis of ACOS.展开更多
Moxibustion in dog days" is a unique therapy for chronic bronchitis and bronchial asthma by means of drug-seperated moxibustion. In the present paper, therapeutic methods, and clinical short-and long-term therape...Moxibustion in dog days" is a unique therapy for chronic bronchitis and bronchial asthma by means of drug-seperated moxibustion. In the present paper, therapeutic methods, and clinical short-and long-term therapeutic effects of "moxibustion in dog days" are introduced and it is indicated that "moxibustion in dog days" has very good the short-and long-term therapeutic effects, with the long-term therapeutic effect better than the short-term one, for chronic bronchitis and bronchial asthma. Also, the concrete methods for increase of the short-term therapeutic effect are put forward.展开更多
Asthma is the most common noncommunicable disease among children. It leads to substantial problems both in health and economic terms to individuals and families. This paper introduces a technological solution, Easy Br...Asthma is the most common noncommunicable disease among children. It leads to substantial problems both in health and economic terms to individuals and families. This paper introduces a technological solution, Easy Breathing, that supports the man-agement of childhood asthma, providing tools for both doctors and patients. Through the establishment of an asthma chronic care model, it combines doctors’ professional guidance and a gamification system to improve the compliance of patients with their treatments and to provide them with tools for the self-management of their disease. The system is in the testing phase, the first mockup has been developed and validated with 270 medical experts and patients, and it will be tested with 540 end-users over the next months.展开更多
基金National Natural Science Foundation of China(81373600)
文摘Objective:To observe the intervention effects of different concentrations of dexamethasone on the general situation and pulmonary histology of chronic asthma rats,and to explore the suitable intragastric dose of dexamethasone in the rat model of chronic asthma.Methods:75 healthy male Sprague-Dawley(SD)rats were randomly divided into normal group,M group,dexamethasone low dose,middle dose and high dose group by random number table.The rat model of chronic asthma was established by sensitization and challenge of ovalbumin(OVA).From the 20th day of the experiment,dexamethasone groups were given intragastric administration of 0.0625mg/(kg·d),0.125mg/(kg·d)and 0.5mg/(kg·d),respectively.The general situation of rats was observed and recorded.The histological changes of rat lungs were observed by HE staining and Masson staining.Results:The degree of inflammatory infiltration of bronchus and surrounding tissue in the M group was significantly higher than that in the normal group(P<0.01).The thickness of airway wall and smooth muscle and the deposition of airway collagen in the M group were significantly higher than those in the normal group(P<0.01).After one week of intervention,the average daily food intake and body mass of rats in the high dose group were significantly lower than those in the M group(P<0.01),and the increase in body mass in the middle and low dose groups was significantly slower than that in the M group(P<0.01).After 2 weeks of intervention,the average daily food intake of rats in the middle and low dose groups was significantly lower than that in the M group(P<0.01).After 4 weeks of intervention,the average daily food intake in the middle and low dose groups was significantly lower than that in the low dose group(P<0.01).The inflammatory infiltration of lung tissue in the middle and low dose groups was significantly less than that in the model group,and the thickness of airway wall and smooth muscle and the deposition of airway collagen in the middle and low dose groups were significantly lower than those in the model group(P<0.01).There was no difference between the two groups(P>0.05).A large number of rats in the high dose group died after 5 times of intervention.Three rats died in the DEXM group at the 5th week of intervention,and there was no death in the other group.Conclusion:Both middle and low doses of dexamethasone can be used as the positive control dose in the experiment of chronic asthmatic rats,but the late side effects of low dose of dexamethasone are less,so the low dose of dexamethasone may be a safer and more suitable dose for the experiment of chronic asthmatic rats.
文摘Background: Poverty is an important surrogate marker for obstructive airway diseases (OAD). Slum constitutes a habitat wherein various poverty related parameters are perpetually prevalent in the ambience. 1/6th of world population lives in slums yet there is no information regarding their health status in context to asthma and COPD. Aims: We investigated the prevalence of asthma and chronic-bronchitis symptoms and associated risk-factors in slum habitats of Pune city. Methodology: 7062 adult slum-dwellers living in 12 slums of Pune city were cross-sectionally interviewed by local healthcare workers with respiratory health questionnaire which was designed using respiratory symptoms of validated European Community Respiratory Health Survey (ECRHS II) questionnaire and International Union against Tuberculosis and Lung Disease (IUATLD) bronchial symptoms questionnaire. Results: The overall prevalence of selfreported asthma symptoms was 10% (18 - 40 years: 6.5%;>40 years: 13.5%). The overall prevalence of chronic bronchitis was 8.5% [18 - 40 years: 7% (males: 7%, females: 7%);>40 years: 10% (males: 10%, females: 10%)]. Increasing age (p = 0.00), female gender (p = 0.001), unemployment (0.00) current smoking (p = 0.00) and ex-smoking (p = 0.004) emerged as significant risk factor for asthma. While, ex-smoking (p = 0.004) and low-education status (p = 0.00) emerged as significant risk factors for chronic bronchitis. Conclusion: In slums reporting of asthma and chronic-bronchitis symptoms was much higher than what has been reported earlier from India. Asthma was commonly seen in females, old age, unemployed and ever-smokers. While chronic bronchitis was commonly seen in ex-smokers and illiterate subjects. Chronic bronchitis was equally distributed amongst male and females, despite 0% prevalence of smoking in females.
文摘A 53-year-old man with a history of blood transfusion at the age of 20 was admitted to our hospital because of liver dysfunction. He had bronchial asthma when he was 18 years old, which naturally resolved within 2 years. However, his bronchial asthma recurred at the age of 45 and was treated with oral theophylline. He was diagnosed as having chronic hepatitis C based on the histological and clinical findings, and then interferon (IFN) therapy was administered. The frequency of bronchial asthma attack was gradually decreasing after IFN therapy with marked improvement of hypereosinophilia. He achieved sustained viral response (SVR) and his bronchial asthma did not worsen even after the cessation of IFN. Hepatitis C virus (HCV) infection and IFN therapy were considered in the remission of asthma in this case. HCV infection could be the cause of bronchial asthma, especially in patients with late appearance of asthma.
文摘Although asthma and chronic obstructive pulmonary disease(COPD) are distinct airway diseases characterized by chronic inflammation, in some cases distinguishing between them is puzzling. For example, chronic smoking leads asthmatic inflammation to a differentiated pattern resembling the COPD inflammation, and in some cases to fixed obstruction as in COPD, and on the other hand, few COPD patients may present with airway reversibility. ACOS is the condition sharing features encountered both in asthma and COPD. Asthma-COPD overlap syndrome(ACOS) represents a diagnostic challenge in the clinical practice, since there is lack of specific indicators to distinguish it from asthma or COPD, and moreover, genetic risk factors, underlying pathology and molecular pathways, clinical characteristics, therapeutic interventions, response to treatment and prognosis are poorly described. The management of ACOS is recommended to be individualized and should target on the maximum effectiveness with the least side effects. Combination therapy with ICS/LABA or LAMA, or newly developed specific anti-eosinophil therapies and treatments specifically targeting neutrophils might be of relevance in the management of ACOS, but studies are needed in order to assess the response and prognosis. Based on the current knowledge about ACOS thus far, it would be recommended that we approached chronic obstructive airway disease rather by describing than by classifying the disease; this would allow us to have a picture that better describes the disease and to implement an individualized therapeutic approach, according to the custom phenotype. Nevertheless, more studies are needed in order to clarify several important issues with regard to ACOS, such as the genetic risk factors for developing ACOS, the links between genotype and phenotype, the molecular pathways and underlying mechanisms of ACOS, the identification of possible specific biomarkers for diagnosis and targeted treatment, the optimal therapeutic interventions, and finally, the prognosis of ACOS.
文摘Moxibustion in dog days" is a unique therapy for chronic bronchitis and bronchial asthma by means of drug-seperated moxibustion. In the present paper, therapeutic methods, and clinical short-and long-term therapeutic effects of "moxibustion in dog days" are introduced and it is indicated that "moxibustion in dog days" has very good the short-and long-term therapeutic effects, with the long-term therapeutic effect better than the short-term one, for chronic bronchitis and bronchial asthma. Also, the concrete methods for increase of the short-term therapeutic effect are put forward.
文摘Asthma is the most common noncommunicable disease among children. It leads to substantial problems both in health and economic terms to individuals and families. This paper introduces a technological solution, Easy Breathing, that supports the man-agement of childhood asthma, providing tools for both doctors and patients. Through the establishment of an asthma chronic care model, it combines doctors’ professional guidance and a gamification system to improve the compliance of patients with their treatments and to provide them with tools for the self-management of their disease. The system is in the testing phase, the first mockup has been developed and validated with 270 medical experts and patients, and it will be tested with 540 end-users over the next months.
