Health article writer and researcher; Over 10.000 articles and research papers have been written and published on line, including world wide health, ezine articles, article base, healthblogs, selfgrowth, best before it's news, the karate GB daily, etc.,.
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Some articles have been used as references in medical research, such as international journal Pharma and Bio science, ISSN 0975-6299.
Respiratory Disease is defined as medical conditions which affect the breathing organ and tissues including Inflammatory lung disease, Obstructive lung diseases, Restrictive lung diseases, Respiratory tract infections, trachea, bronchi, bronchioles, alveoli, the nerves and muscles breathing , etc,.
Asthma
Asthma is a chronic inflammatory disease affecting the air way of the lung with recurring symptoms, such as wheezing, chest tightness, shortness of breath, and coughing. The disease affects people of all ages, and mostly starts during childhood. In the study of 463,801 children aged 13-14 years in 155 collaborating centres in 56 countries. Children self-reported, through one-page questionnaires, symptoms of these three atopic disorders. In 99 centres in 42 countries, a video asthma questionnaire was also used for 304,796 children, found that for asthma symptoms, the highest 12-month prevalences were from centres in the UK, Australia, New Zealand, and Republic of Ireland, followed by most centres in North, Central, and South America; the lowest prevalences were from centres in several Eastern European countries, Indonesia, Greece, China, Taiwan, Uzbekistan, India, and Ethiopia(1). In the United States, approximately, asthma affects 25 million people, 7 million of them are children.
The effective of Vitamin A against Asthma
Vitamin A is a general term of Vitamin A Retinol, retinal, beta-carotene,alpha-carotene, gamma-carotene, and beta-cryptoxanthin best known for its functions for vision health and antioxidant scavenger and essential for growth and differentiation of a number of cells and tissues.
Recommended intakes of vitamin A, according to the Institute of Medicine of the National Academies (formerly National Academy of Sciences) is 600 µg daily as extremely high doses (>9000 mg) can be toxicity as causes of dry, scaly skin, fatigue, nausea, loss of appetite, bone and joint pains, headaches, etc.
Epidemiological studies linking vitamin A in reduced risk and treatment of asthma have been inconclusive(a)(b)(c)(d)(e), but according to the University G. D'Annunzio, and Respiratory Pathophysiology Center, dietary supplementation or adequate intake of lycopene and vitamin A rich foods may be beneficial in asthmatic subjects(f).
1. Retinols
Serum vitamin A concentrations was found significantly lower in asthmatic subjects than healthy control subjects and administration of all-trans retinoic acid, ATRA dramatically attenuated airway inflammation through inhibiting Th2 and Th17 differentiation and/or functions. according to the Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine(1). ORMDL3 is a candidate gene of childhood onset asthma, and high-transcript of ORMDL3 is associated with the development of asthma. According to Nanjing Medical University, all-trans retinoic acid (ATRA) is an active metabolite of Vitamin A, reduced the risk of asthma through maintained airway epithelial integrity, inhibited asthma effector cells differentiation, modulating immune response, possibly via facilitates ORMDL3 production probable through PKA/CREB(2). Also in all-trans retinoic acid, ATRA, the Tehran University of Medical Sciences study suggested that ATRA diverted the human immune response in neutral conditions (without adding polarizing cytokines) by increasing FOXP3+ cells and decreasing RORγt+ cells(3). In rats with asthma, ATRA was found to alleviate airway hyperresponsiveness and airway remodeling possibly through decreasing the protein expression of MMP-9(4). The study at 1Inserm U700 and Université Paris 7, in a mouse model of ovalbumin (OVA)-induced T helper (Th) 2-type responses and airway remodeling, indicated a effectiveness of liposomally encapsulated ATRA (Lipo-ATRA) in exacerbates allergic immune and inflammatory responses, most likely through promoting Th2 development(5).
Unfortunately, according to Johns Hopkins University, even though animal models suggest that vitamin A deficiency affects lung development adversely and promotes airway hyperresponsiveness, and may predispose to an increased risk of asthma, but vitamin A supplementation early in life was not associated with a decreased risk of asthma in an area with chronic vitamin Adeficiency(6).
2. Carotenoids (beta-carotene, alpha-carotene, gamma-carotene and beta-cryptoxanthin) Carotenoids, plant pigments, converted to vitamin A after intake, play an important role in prevention and treatment of some diseases through it antioxidant effects. In the study of the effect of vitamin intake among asthmatic subject, researchers at the Hung Kuang University, found that nutritional supplement therapy including beta carotene may improve dysregulated oxidant and antioxidant status, inflammation and immune responses, pulmonary function, and health-related quality of life in patients with mild to moderate allergic asthma(7). The John Hunter Hospital study of asthmatic subjects with airway hyper-responsiveness (AHR), indicated a reduced levels of beta-carotene and alpha-tocopherol compared with those without AHR, possibly due to impaired antioxidant defences and are thus most susceptible to the damaging effects of oxidative (8). Other researchers suggested that the imbalance of antioxidants found in asthmatic patients may be the possible causes of the disease(9) and modifying the dietary intake ofcarotenoids alters clinical asthma outcomes with improvements evident only through increased whole foods intake, not supplements(10)
But according to the study of Yamaguchi University, there was no significant association for asthma in Japanese youth(11) and the study of a total of 423 children from a rural area of Thailand, in a Health Interview for AsthmaControl questionnaire, showed no correlation of dietary intake ofcarotenoids between asthmatic and non-asthmatic children(12).
Taken altogether, using vitamin A in prevention and treatment of asthmatic patient remains controversial. According to the study in summarized the important of vitamin A in treatment of asthma, excessive intake of vitamin Amay increase the risk or severity of asthma in industrialized countries whereas vitamin A deficiency continues to increase mortality from infectious diseases in developing countries(12)(13). Overdoses can lead to toxic symptoms. Please make sure you follow the guideline of the Institute of Medicine of the National Academies.
All Forms of Arthritis are Curable
You Can Eliminate Osteoarthritis
By addressing the Underlying Causes through Clinical Trials and Studies
Ovarian Cysts And PCOS Elimination
Holistic System In Existence That Will Show You How To
Permanently Eliminate All Types of Ovarian Cysts Within 2 Months
Back to General health http://kylejnorton.blogspot.ca/p/general-health.html
Back to Kyle J. Norton Home page http://kylejnorton.blogspot.ca
References
(a) Diet and asthma: vitamins and methyl donors by Han YY1, Blatter J1, Brehm JM1, Forno E1, Litonjua AA2, Celedón JC3.(PubMed)
(b) Maternal intake of vitamins A, E and K in pregnancy and child allergic disease: a longitudinal study from the Danish National Birth Cohort by Maslova E, Hansen S, Strøm M, Halldorsson TI, Olsen SF.(PubMed)
(c) Nutritional supplements and plasma antioxidants in childhood asthma byFabian E1, Pölöskey P, Kósa L, Elmadfa I, Réthy LA.(PubMed)
(d) Nutritional supplement therapy improves oxidative stress, immune response, pulmonary function, and quality of life in allergic asthma patients: an open-label pilot study by Guo CH1, Liu PJ, Lin KP, Chen PC(PubMed)
(e) Cod liver oil intake and incidence of asthma in Norwegian adults--the HUNT study by Mai XM1, Langhammer A, Chen Y, Camargo CA Jr.(PubMed)
(f) Plasma lycopene and antioxidant vitamins in asthma: the PLAVA study by Riccioni G1, Bucciarelli T, Mancini B, Di Ilio C, Della Vecchia R, D'Orazio N.(PubMed)
(1) All-trans retinoic acid attenuates airway inflammation by inhibiting Th2 and Th17 response in experimental allergic asthma by Wu J1, Zhang Y, Liu Q, Zhong W, Xia Z.(PubMed)
(2) All-trans retinoic acid modulates ORMDL3 expression via transcriptional regulation by Zhuang LL1, Huang BX, Feng J, Zhu LH, Jin R, Qiu LZ, Zhou GP.(PubMed)
(3) Effect of all-trans retinoic acid (ATRA) on viability, proliferation, activation and lineage-specific transcription factors of CD4+ T cells by Bidad K1, Salehi E, Oraei M, Saboor-Yaraghi AA, Nicknam MH.(PubMed)
(4) [Effects of all-trans retinoic acid on airway responsiveness and airway remodeling in rats with asthma].[Article in Chinese] by Li WK1, Li Y, Zhong LL.(PubMed)
(5) Liposomal retinoic acids modulate asthma manifestations in mice by Maret M1, Ruffie C, Periquet B, Campo AM, Menevret M, Phelep A, Dziewiszek K, Druilhe A, Pretolani M.(PubMed)
(6) Supplementation with vitamin A early in life and subsequent risk ofasthma by Checkley W1, West KP Jr, Wise RA, Wu L, LeClerq SC, Khatry S, Katz J, Christian P, Tielsch JM, Sommer A.(PubMed)
(7) Nutritional supplement therapy improves oxidative stress, immune response, pulmonary function, and quality of life in allergic asthma patients: an open-label pilot study by Guo CH1, Liu PJ, Lin KP, Chen PC.(PubMed)
(8) Reduced circulating antioxidant defences are associated with airway hyper-responsiveness, poor control and severe disease pattern in asthma byWood LG1, Gibson PG.(PubMed)
(9) Antioxidants, oxidative stress, and pulmonary function in individuals diagnosed with asthma or COPD by Ochs-Balcom HM1, Grant BJ, Muti P, Sempos CT, Freudenheim JL, Browne RW, McCann SE, Trevisan M, Cassano PA, Iacoviello L, Schünemann HJ.(PubMed)
(10) Manipulating antioxidant intake in asthma: a randomized controlled trial by Wood LG1, Garg ML, Smart JM, Scott HA, Barker D, Gibson PG.(PubMed)
(11) Association of serum carotenoids and tocopherols with atopic diseases in Japanese children and adolescents by Okuda M1, Bando N, Terao J, Sasaki S, Sugiyama S, Kunitsugu I, Hobara T.(PubMed)
(12) Carotenoid intake and asthma prevalence in Thai children by Rerksuppaphol S1, Rerksuppaphol L.(PubMed)
(13) Vitamin A deficiency decreases and high dietary vitamin A increases disease severity in the mouse model of asthma by Schuster GU1, Kenyon NJ, Stephensen CB.(PubMed)
The effective of Vitamin A against Asthma
Vitamin A is a general term of Vitamin A Retinol, retinal, beta-carotene,alpha-carotene, gamma-carotene, and beta-cryptoxanthin best known for its functions for vision health and antioxidant scavenger and essential for growth and differentiation of a number of cells and tissues.
Recommended intakes of vitamin A, according to the Institute of Medicine of the National Academies (formerly National Academy of Sciences) is 600 µg daily as extremely high doses (>9000 mg) can be toxicity as causes of dry, scaly skin, fatigue, nausea, loss of appetite, bone and joint pains, headaches, etc.
Epidemiological studies linking vitamin A in reduced risk and treatment of asthma have been inconclusive(a)(b)(c)(d)(e), but according to the University G. D'Annunzio, and Respiratory Pathophysiology Center, dietary supplementation or adequate intake of lycopene and vitamin A rich foods may be beneficial in asthmatic subjects(f).
1. Retinols
Serum vitamin A concentrations was found significantly lower in asthmatic subjects than healthy control subjects and administration of all-trans retinoic acid, ATRA dramatically attenuated airway inflammation through inhibiting Th2 and Th17 differentiation and/or functions. according to the Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine(1). ORMDL3 is a candidate gene of childhood onset asthma, and high-transcript of ORMDL3 is associated with the development of asthma. According to Nanjing Medical University, all-trans retinoic acid (ATRA) is an active metabolite of Vitamin A, reduced the risk of asthma through maintained airway epithelial integrity, inhibited asthma effector cells differentiation, modulating immune response, possibly via facilitates ORMDL3 production probable through PKA/CREB(2). Also in all-trans retinoic acid, ATRA, the Tehran University of Medical Sciences study suggested that ATRA diverted the human immune response in neutral conditions (without adding polarizing cytokines) by increasing FOXP3+ cells and decreasing RORγt+ cells(3). In rats with asthma, ATRA was found to alleviate airway hyperresponsiveness and airway remodeling possibly through decreasing the protein expression of MMP-9(4). The study at 1Inserm U700 and Université Paris 7, in a mouse model of ovalbumin (OVA)-induced T helper (Th) 2-type responses and airway remodeling, indicated a effectiveness of liposomally encapsulated ATRA (Lipo-ATRA) in exacerbates allergic immune and inflammatory responses, most likely through promoting Th2 development(5).
Unfortunately, according to Johns Hopkins University, even though animal models suggest that vitamin A deficiency affects lung development adversely and promotes airway hyperresponsiveness, and may predispose to an increased risk of asthma, but vitamin A supplementation early in life was not associated with a decreased risk of asthma in an area with chronic vitamin Adeficiency(6).
2. Carotenoids (beta-carotene, alpha-carotene, gamma-carotene and beta-cryptoxanthin) Carotenoids, plant pigments, converted to vitamin A after intake, play an important role in prevention and treatment of some diseases through it antioxidant effects. In the study of the effect of vitamin intake among asthmatic subject, researchers at the Hung Kuang University, found that nutritional supplement therapy including beta carotene may improve dysregulated oxidant and antioxidant status, inflammation and immune responses, pulmonary function, and health-related quality of life in patients with mild to moderate allergic asthma(7). The John Hunter Hospital study of asthmatic subjects with airway hyper-responsiveness (AHR), indicated a reduced levels of beta-carotene and alpha-tocopherol compared with those without AHR, possibly due to impaired antioxidant defences and are thus most susceptible to the damaging effects of oxidative (8). Other researchers suggested that the imbalance of antioxidants found in asthmatic patients may be the possible causes of the disease(9) and modifying the dietary intake ofcarotenoids alters clinical asthma outcomes with improvements evident only through increased whole foods intake, not supplements(10)
But according to the study of Yamaguchi University, there was no significant association for asthma in Japanese youth(11) and the study of a total of 423 children from a rural area of Thailand, in a Health Interview for AsthmaControl questionnaire, showed no correlation of dietary intake ofcarotenoids between asthmatic and non-asthmatic children(12).
Taken altogether, using vitamin A in prevention and treatment of asthmatic patient remains controversial. According to the study in summarized the important of vitamin A in treatment of asthma, excessive intake of vitamin Amay increase the risk or severity of asthma in industrialized countries whereas vitamin A deficiency continues to increase mortality from infectious diseases in developing countries(12)(13). Overdoses can lead to toxic symptoms. Please make sure you follow the guideline of the Institute of Medicine of the National Academies.
All Forms of Arthritis are Curable
You Can Eliminate Osteoarthritis
By addressing the Underlying Causes through Clinical Trials and Studies
Ovarian Cysts And PCOS Elimination
Holistic System In Existence That Will Show You How To
Permanently Eliminate All Types of Ovarian Cysts Within 2 Months
Back to General health http://kylejnorton.blogspot.ca/p/general-health.html
Back to Kyle J. Norton Home page http://kylejnorton.blogspot.ca
References
(a) Diet and asthma: vitamins and methyl donors by Han YY1, Blatter J1, Brehm JM1, Forno E1, Litonjua AA2, Celedón JC3.(PubMed)
(b) Maternal intake of vitamins A, E and K in pregnancy and child allergic disease: a longitudinal study from the Danish National Birth Cohort by Maslova E, Hansen S, Strøm M, Halldorsson TI, Olsen SF.(PubMed)
(c) Nutritional supplements and plasma antioxidants in childhood asthma byFabian E1, Pölöskey P, Kósa L, Elmadfa I, Réthy LA.(PubMed)
(d) Nutritional supplement therapy improves oxidative stress, immune response, pulmonary function, and quality of life in allergic asthma patients: an open-label pilot study by Guo CH1, Liu PJ, Lin KP, Chen PC(PubMed)
(e) Cod liver oil intake and incidence of asthma in Norwegian adults--the HUNT study by Mai XM1, Langhammer A, Chen Y, Camargo CA Jr.(PubMed)
(f) Plasma lycopene and antioxidant vitamins in asthma: the PLAVA study by Riccioni G1, Bucciarelli T, Mancini B, Di Ilio C, Della Vecchia R, D'Orazio N.(PubMed)
(1) All-trans retinoic acid attenuates airway inflammation by inhibiting Th2 and Th17 response in experimental allergic asthma by Wu J1, Zhang Y, Liu Q, Zhong W, Xia Z.(PubMed)
(2) All-trans retinoic acid modulates ORMDL3 expression via transcriptional regulation by Zhuang LL1, Huang BX, Feng J, Zhu LH, Jin R, Qiu LZ, Zhou GP.(PubMed)
(3) Effect of all-trans retinoic acid (ATRA) on viability, proliferation, activation and lineage-specific transcription factors of CD4+ T cells by Bidad K1, Salehi E, Oraei M, Saboor-Yaraghi AA, Nicknam MH.(PubMed)
(4) [Effects of all-trans retinoic acid on airway responsiveness and airway remodeling in rats with asthma].[Article in Chinese] by Li WK1, Li Y, Zhong LL.(PubMed)
(5) Liposomal retinoic acids modulate asthma manifestations in mice by Maret M1, Ruffie C, Periquet B, Campo AM, Menevret M, Phelep A, Dziewiszek K, Druilhe A, Pretolani M.(PubMed)
(6) Supplementation with vitamin A early in life and subsequent risk ofasthma by Checkley W1, West KP Jr, Wise RA, Wu L, LeClerq SC, Khatry S, Katz J, Christian P, Tielsch JM, Sommer A.(PubMed)
(7) Nutritional supplement therapy improves oxidative stress, immune response, pulmonary function, and quality of life in allergic asthma patients: an open-label pilot study by Guo CH1, Liu PJ, Lin KP, Chen PC.(PubMed)
(8) Reduced circulating antioxidant defences are associated with airway hyper-responsiveness, poor control and severe disease pattern in asthma byWood LG1, Gibson PG.(PubMed)
(9) Antioxidants, oxidative stress, and pulmonary function in individuals diagnosed with asthma or COPD by Ochs-Balcom HM1, Grant BJ, Muti P, Sempos CT, Freudenheim JL, Browne RW, McCann SE, Trevisan M, Cassano PA, Iacoviello L, Schünemann HJ.(PubMed)
(10) Manipulating antioxidant intake in asthma: a randomized controlled trial by Wood LG1, Garg ML, Smart JM, Scott HA, Barker D, Gibson PG.(PubMed)
(11) Association of serum carotenoids and tocopherols with atopic diseases in Japanese children and adolescents by Okuda M1, Bando N, Terao J, Sasaki S, Sugiyama S, Kunitsugu I, Hobara T.(PubMed)
(12) Carotenoid intake and asthma prevalence in Thai children by Rerksuppaphol S1, Rerksuppaphol L.(PubMed)
(13) Vitamin A deficiency decreases and high dietary vitamin A increases disease severity in the mouse model of asthma by Schuster GU1, Kenyon NJ, Stephensen CB.(PubMed)
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