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Airborne load of Cassia pollen in West Bengal, eastern India: its atmospheric variation and health impact

Hussain, Mir Musaraf, Mandal, Jyotshna, Bhattacharya, Kashinath
Environmental monitoring and assessment 2013 v.185 no.3 pp. 2735-2744
proteins, Senna occidentalis, Cassia fistula, Senna tora, pollen, enzyme-linked immunosorbent assay, meteorological parameters, skin tests, patients, sodium, towns, gel electrophoresis, India
A Burkard personal volumetric sampler was used at Sriniketan, a town about 150 km northwest of Calcutta, in the state of West Bengal, in eastern India to record the frequency of three common airborne Cassia pollen types, Cassia tora, Cassia occidentalis, and Cassia fistula for two consecutive years (2004–2006). Correlation was made between the meteorological factors and the pollen concentration in the atmosphere. The study reports Cassia pollinosis by in vivo skin prick test in respiratory allergic patients. The highest positive reactions were exhibited by C. tora (34.7 %), C. fistula (33.3 %), and C. occidentalis (28.5 %). The allergic potential of these was investigated by in vitro enzyme linked immunosorbent assay test. Their protein components were analyzed by sodium dodecyl sulfate–polyacrylamide gel electrophoresis, in the range of 15.8–81.5 kDa. In C. occidentalis and C. fistula, 11 bands were found, while it was 10 in C. tora. The results show that the Cassia pollen occur significantly in the atmosphere with the potential to elicit an allergic response in susceptible patients.