Snakebite knowledge among healthcare workers in Gabon: A health facility-based cross-sectional survey

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  Snakebite knowledge among healthcare workers in Gabon: A health facility-based cross-sectional survey Abstract Background Snakebite envenoming remains a neglected health issue in many countries, including Gabon, where the limited availability of snakebite-specific training, clinical guidelines, and essential resources at health facilities may lead to gaps in healthcare workers’ knowledge and confidence and the use of non-recommended treatment practices. This study aimed to assess healthcare workers’ knowledge of snakebite management in the Ogooué et des Lacs department of Moyen-Ogooué province in Gabon. Methods From June to August 2023, we conducted a cross-sectional survey targeting all healthcare workers in Ogooué et des Lacs who may be involved in snakebite management. We collected information on prior training, self-perceived knowledge of snakebite management, symptom recognition, clinical management practices, and snake identification. Knowledge was assessed using 10 true/fa...

Bioaccumulation of potentially toxic trace elements (As, Cd, Hg, In, Ni, Pb, Se, Zn) and methylmercury in an Indian tarantula Thrigmopoeus truculentus (Pocock 1899) of the Western Ghats

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Bioaccumulation of potentially toxic trace elements (As, Cd, Hg, In, Ni, Pb, Se, Zn) and methylmercury in an Indian tarantula Thrigmopoeus truculentus (Pocock 1899) of the Western Ghats


ABSTRACT

Spiders are good bioindicators of ecological contamination by potentially toxic trace elements such as As, Cd, Hg, In, Ni, Pb, Se Zn and methylmercury (MeHg). Here, we investigated their bioaccumulation in an Indian tarantula, Theraphosidae spider Thrigmopoeus truculentus inhabiting mud embankments along a national highway in the Western Ghats mountains, and the soil contamination. Concentrations in soil were higher than the soil environmental quality criteria of different countries for Cd, Zn and Ni. Concentrations in whole-body of tarantulas (n = 7) were Zn > Se > [Cd, As, Pb, Ni] > In > total mercury (THg) > MeHg. Concentrations of Zn, Cd, Se, THg and MeHg were significantly higher (p < 0.05) compared to soil, suggesting biomagnification. Our work and the review of past data suggest that spiders can biomagnify Zn, Cd, Se, THg and MeHg; but not Pb, As, In and Ni. For As, Zn, Se, Cd, In and THg, correlations between concentrations in tarantula appendages and whole-body were significant (p < 0.05), suggesting that a non-lethal approach be explored where only appendages of larger tarantulas are analysed. Overall, the Theraphosidae species showed the potential to be used as an indicator of bioaccumulation, and their usefulness should be further explored.


Manoj Ramakant Borkar & Asif Qureshi (2023) Bioaccumulation of potentially toxic trace elements (As, Cd, Hg, In, Ni, Pb, Se, Zn) and methylmercury in an Indian tarantula Thrigmopoeus truculentus (Pocock 1899) of the Western Ghats, Chemistry and Ecology, DOI: 10.1080/02757540.2023.2274352