Current glimpse of airborne allergenic pollen in Indian subcontinent

Ghosal, Kavita; Gupta‐Bhattacharya, Swati

doi:10.5586/aa.2015.034

Cited by 10 publications

(4 citation statements)

References 15 publications

(17 reference statements)

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“…Holoptelea integrifolia, an anemophilous species releases enormous pollens (estimated 7650 pollen grains per anther in a year); hence, the prevalence of H. integrifolia pollen (50-56%) is obvious in Delhi atmosphere. 37 Among grass pollens, Cynodon (3.05%) was the dominant allergen. 36 In a study from Allahabad in 2016, major pollens reported were Ricinus communis (28.33%), Amaranthus spinosus (28.33%), Parthenium hysterophorus (26.66%), Eucalyptus tereticornis (26.66%) and Cynodon dactylon (25%).…”

Section: Pollen Allergymentioning

confidence: 99%

“…Among tree pollens, Holoptelia (5.01%) elicited highest sensitization. Holoptelea integrifolia , an anemophilous species releases enormous pollens (estimated 7650 pollen grains per anther in a year); hence, the prevalence of H. integrifolia pollen (50–56%) is obvious in Delhi atmosphere 37 . Among grass pollens, Cynodon (3.05%) was the dominant allergen 36 .…”

Section: Prevalence Of Allergies Against Different Sources Of Aero‐al...mentioning

confidence: 99%

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A review on aero‐allergen induced allergy in India

Laha

Moitra²,

Podder

2023

Clin Experimental Allergy

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Allergic diseases such as bronchial asthma, rhinitis and eczema are an important public health issue globally in 21st century. Their prevalence and impact in India is high, in terms of total numbers of people affected. Due to diverse climate and lifestyle, the Indian population is exposed to a rich and varied range of aerobiological particles. In the last two decades in India, 83 pollens, 34 fungi, six dust mite and 19 insect species were reported as allergenic, often contributing to heavy allergenic exposure in indoor and outdoor environments. There are currently few practitioners who offer allergy diagnosis and treatment in India, but there is active basic and molecular research aiming to improve the health of allergic patients. This review explores the field of aero-allergy in India during the last two decades, with special emphasis on prevalence across various centres and relevant scientific advances such as genetic associations and new therapeutics. This review will be helpful for clinicians to select aero-allergens for sensitisation testing in patients suffering from symptoms in different regions of India, and to support patients undertaking prophylaxis of allergic symptoms in India according to local environmental conditions. This study also helps to define patient selection for allergy testing and the role of test results in guiding allergic disease management in the Indian context. Finally, we summarize genetic findings relevant to aero-allergy in India and discuss the development of novel therapeutics for investigation and management of aero-allergy in India.

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Section: Pollen Allergymentioning

confidence: 99%

Section: Prevalence Of Allergies Against Different Sources Of Aero‐al...mentioning

confidence: 99%

A review on aero‐allergen induced allergy in India

Laha

Moitra²,

Podder

2023

Clin Experimental Allergy

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“…Viruses are the smallest bio-aerosols present in the atmosphere (size approximately 0.003 μm) and are considered as major environmental risk factors to human, animal and plant species [92,93]. However, their occurrence in the atmosphere is mostly in association with suspended particles [94].…”

Section: Virusesmentioning

confidence: 99%

Pathogenicity, Characterisation and Impact of Ambient Bio-Aerosols on the Climatic Processes: With a Special Emphasis on the Indian Subcontinent

Behera¹,

Nath²,

Pandey³

et al. 2022

Air Quality and Health

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Airborne particulate matter contains biological entities from various anthropogenic/biogenic activities. Within 1 nm–100 μm size, these are carried to long distances through various external agents. Identified as potential pathogens, they bring forth substantial economic losses in many parts of the world. Despite these shortcomings, bio-aerosols play a vital role in cloud condensation, ice nucleation, precipitation and various atmospheric processes affecting the hydrological cycle in general. Furthermore, bio-aerosols play a decisive role in the dispersal of reproductive plant parts and fungal spores, which play important roles in the evolution and sustenance of ecosystems. However, there remains substantial knowledge on air micro-biome with respect to their occurrence, transformation, role in climate change, interaction and impact on living organisms, agriculture and ecosystem. The current COVID-19 pandemic is a wakeup call for retrospective analysis of airborne particles to reduce their emission, transmission and health risk hazards while understanding their impact on various atmospheric processes. This chapter identifies the various types of bio-aerosols and systematically includes their prime role in the climatic processes, pathogenicity to the exposed flora and fauna along with an exclusive interrogation into their types and characterisation over the Indian subcontinent with a hugely diverging population and pollution panorama.

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“…All the patients were diagnosed with a positive history of allergy against one or more common pollen allergen sources available in West Bengal and suffering from rhinitis, conjunctivitis, urticaria, oral allergy syndrome, or bronchial asthma, either alone or in combination. On the basis of the peak season for airborne pollen allergen sources in West Bengal [10], patients were categorized into seasonal (March -July) and perennial ones. In addition, 782 food-allergic (FA) patients were also recruited on the basis of a history of allergic reactions after consumption of an offending food.…”

Section: Study Populationmentioning

confidence: 99%

Assessment of Co-Sensitization between Pollen and Food Allergen Sources among Bengali Population, West Bengal, India

Laha

Moitra

Biswas³

et al. 2022

Int Arch Allergy Immunol

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Introduction: Secondary food allergies due to cross-reactivity between pollen and food allergens are a significant health burden in India. Prevalence of cross-reactivity varies by region, and particularly in West Bengal, it remains unexplored. The present study investigated sensitivities of pollen-related food allergy (PFA) patients of West Bengal by empirically determining co-sensitization patterns. Methods: The present study retrospectively analysed 1,310 pollen-allergic (PA) patients from the Allergy and Asthma Research Centre, West Bengal. A questionnaire survey was performed to record patients’ demographic and clinical features and categorized into seasonal and perennial ones. All patients were subjected to the skin prick test and specific IgE for evaluation of sensitivity against 16 pollen and 16 food allergens. Co-relation and principal component analysis (PCA) was performed to determine co-sensitivity. Results: Seasonal allergic patients were comparatively higher than perennial ones. PFA patients were mostly sensitive to eggplant (n = 387), while Azadirachta indica (n = 341) was predominant sensitizer among pollen allergen sources. Cynodon dactylon showed maximum significant positive correlation with banana, orange, peanut, pineapple, cucumber, eggplant, potato, tomato, and wheat. In the seasonal group, Cynodon dactylon-specific IgE in PFA patients (median = 4.60 kU/L) was significantly higher from that of PA ones (median = 3.44 kU/L). Among 32 allergens tested, 27 were placed in first two dimensions of the PCA biplot. Conclusion: The present study established that co-sensitivity between pollen and food allergen sources were predominant in allergic patients of West Bengal. The co-sensitization patterns among unrelated allergen sources may be due to possible expression of biologic cross-reactivity to similar allergens.

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Current glimpse of airborne allergenic pollen in Indian subcontinent

Cited by 10 publications

References 15 publications

A review on aero‐allergen induced allergy in India

A review on aero‐allergen induced allergy in India

Pathogenicity, Characterisation and Impact of Ambient Bio-Aerosols on the Climatic Processes: With a Special Emphasis on the Indian Subcontinent

Assessment of Co-Sensitization between Pollen and Food Allergen Sources among Bengali Population, West Bengal, India

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