Bibi, Sara and Kerbiriou, Caroline and Uzma and Mckirdy, Shona and Kostrytsia, Anastasiia and Rasheed, Hifza and Eqani, Syed Ali Musstjab Akber Shah and Gerasimidis, Konstantinos and Nurulain, Syed Muhammad and Ijaz, Umer Zeeshan (2024) Gut microbiome and function are altered for individuals living in high fluoride concentration areas in Pakistan. Ecotoxicology and Environmental Safety, 284: 116959. ISSN 0147-6513

Abstract

Background:
Endemic fluorosis refers to the condition when individuals are exposed to excessive amounts of fluoride ion due to living in a region characterized by elevated levels of fluorine in the drinking water, food, and/or air. In Pakistan, a substantial proportion of the population is thereby affected, posing a public health concern.

Objectives:
Assessing how the gut microbiota and its metabolic profiles are impacted by chronic exposure to fluoride in drinking water (that caused Dental Fluorosis) as well as to perceive how this microbiota is connected to adverse health outcomes prevailing with fluoride exposure.

Methods:
Drinking water (n=27) and biological samples (n=100) of blood, urine and feces were collected from 70 high fluoride exposed (with Dental Fluorosis) and 30 healthy control (without Dental Fluorosis) subjects. Water and urinary fluoride concentrations were determined. Serum/plasma biochemical testing was performed. Fecal DNA extraction, 16S rRNA analysis of microbial taxa, their predicted metabolic function and fecal short chain fatty acids (SCFAs) quantification were carried out.

Results:
The study revealed that microbiota taxonomic shifts and their metabolic characterization had been linked to certain host clinical parameters under the chronic fluoride exposure. Some sets of genera showed strong specificity to water and urine fluoride concentrations, Relative Fat Mass index and SCFAs. The SCFAs response in fluoride-exposed samples was observed to be correlated with bacterial taxa that could contribute to adverse health effects.

Conclusions:
Microbial dysbiosis as a result of endemic fluorosis exhibits a structure that is associated with risk of metabolic deregulation and is implicated in various diseases. Our results may form the development of novel interventions and may have utility in diagnosis and monitoring.

People
Bibi, Sara
Author

Bibi, Sara and Kerbiriou, Caroline and Uzma and Mckirdy, Shona and Kostrytsia, Anastasiia and Rasheed, Hifza and Eqani, Syed Ali Musstjab Akber Shah and Gerasimidis, Konstantinos and Nurulain, Syed Muhammad and Ijaz, Umer Zeeshan (2024) Gut microbiome and function are altered for individuals living in high fluoride concentration areas in Pakistan. Ecotoxicology and Environmental Safety, 284: 116959. ISSN 0147-6513

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Kerbiriou, Caroline
Author

Bibi, Sara and Kerbiriou, Caroline and Uzma and Mckirdy, Shona and Kostrytsia, Anastasiia and Rasheed, Hifza and Eqani, Syed Ali Musstjab Akber Shah and Gerasimidis, Konstantinos and Nurulain, Syed Muhammad and Ijaz, Umer Zeeshan (2024) Gut microbiome and function are altered for individuals living in high fluoride concentration areas in Pakistan. Ecotoxicology and Environmental Safety, 284: 116959. ISSN 0147-6513

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Uzma
Author

Zainy, Zainy and Hyder, Muhammad Zeeshan and Uzma, Uzma and Fayyaz, Muhammad and Ijaz, Umer Zeeshan and Farrakh, Sumaira (2025) Comparative transcriptome analysis of resistant, moderately resistant and susceptible wheat near isogenic lines in response to Puccinia striiformis tritici. Journal of Plant Interactions, 20 (1): 2481853. ISSN 1742-9145

Bibi, Sara and Kerbiriou, Caroline and Uzma and Mckirdy, Shona and Kostrytsia, Anastasiia and Rasheed, Hifza and Eqani, Syed Ali Musstjab Akber Shah and Gerasimidis, Konstantinos and Nurulain, Syed Muhammad and Ijaz, Umer Zeeshan (2024) Gut microbiome and function are altered for individuals living in high fluoride concentration areas in Pakistan. Ecotoxicology and Environmental Safety, 284: 116959. ISSN 0147-6513

Shi, Xiang and Pereira, Ryan and Uzma and Savage, Laurie and Poursat, Baptiste and Quinn, Dominic and Kostrytsia, Anastasiia and Cholet, Fabien and Smith, Cindy J. and Gauchotte-Lindsay, Caroline and Sloan, William T. and Ijaz, Umer and Vignola, Marta (2024) Microbial stratification and DOM removal in drinking water biofilters: implications for enhanced performance. Water Research, 262: 122053. ISSN 0043-1354

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Mckirdy, Shona
Author

Bibi, Sara and Kerbiriou, Caroline and Uzma and Mckirdy, Shona and Kostrytsia, Anastasiia and Rasheed, Hifza and Eqani, Syed Ali Musstjab Akber Shah and Gerasimidis, Konstantinos and Nurulain, Syed Muhammad and Ijaz, Umer Zeeshan (2024) Gut microbiome and function are altered for individuals living in high fluoride concentration areas in Pakistan. Ecotoxicology and Environmental Safety, 284: 116959. ISSN 0147-6513

See full publications list
Kostrytsia, Anastasiia
Author

Bibi, Sara and Kerbiriou, Caroline and Uzma and Mckirdy, Shona and Kostrytsia, Anastasiia and Rasheed, Hifza and Eqani, Syed Ali Musstjab Akber Shah and Gerasimidis, Konstantinos and Nurulain, Syed Muhammad and Ijaz, Umer Zeeshan (2024) Gut microbiome and function are altered for individuals living in high fluoride concentration areas in Pakistan. Ecotoxicology and Environmental Safety, 284: 116959. ISSN 0147-6513

Shi, Xiang and Pereira, Ryan and Uzma and Savage, Laurie and Poursat, Baptiste and Quinn, Dominic and Kostrytsia, Anastasiia and Cholet, Fabien and Smith, Cindy J. and Gauchotte-Lindsay, Caroline and Sloan, William T. and Ijaz, Umer and Vignola, Marta (2024) Microbial stratification and DOM removal in drinking water biofilters: implications for enhanced performance. Water Research, 262: 122053. ISSN 0043-1354

See full publications list
Rasheed, Hifza
Author

Bibi, Sara and Kerbiriou, Caroline and Uzma and Mckirdy, Shona and Kostrytsia, Anastasiia and Rasheed, Hifza and Eqani, Syed Ali Musstjab Akber Shah and Gerasimidis, Konstantinos and Nurulain, Syed Muhammad and Ijaz, Umer Zeeshan (2024) Gut microbiome and function are altered for individuals living in high fluoride concentration areas in Pakistan. Ecotoxicology and Environmental Safety, 284: 116959. ISSN 0147-6513

See full publications list
Eqani, Syed Ali Musstjab Akber Shah
Author

Bibi, Sara and Kerbiriou, Caroline and Uzma and Mckirdy, Shona and Kostrytsia, Anastasiia and Rasheed, Hifza and Eqani, Syed Ali Musstjab Akber Shah and Gerasimidis, Konstantinos and Nurulain, Syed Muhammad and Ijaz, Umer Zeeshan (2024) Gut microbiome and function are altered for individuals living in high fluoride concentration areas in Pakistan. Ecotoxicology and Environmental Safety, 284: 116959. ISSN 0147-6513

See full publications list
Gerasimidis, Konstantinos
Author

Bibi, Sara and Kerbiriou, Caroline and Uzma and Mckirdy, Shona and Kostrytsia, Anastasiia and Rasheed, Hifza and Eqani, Syed Ali Musstjab Akber Shah and Gerasimidis, Konstantinos and Nurulain, Syed Muhammad and Ijaz, Umer Zeeshan (2024) Gut microbiome and function are altered for individuals living in high fluoride concentration areas in Pakistan. Ecotoxicology and Environmental Safety, 284: 116959. ISSN 0147-6513

Koci, Orges and Russell, Richard K. and Shaikh, M. Guftar and Edwards, Christine and Gerasimidis, Konstantinos and Ijaz, Umer Zeeshan (2024) CViewer: a Java-based statistical framework for integration of shotgun metagenomics with other omics datasets. Microbiome, 12 (1): 117. ISSN 2049-2618

Jatkowska, Aleksandra and Gkikas, Konstantinos and Nichols, Ben and Short, Bryn and Rizou, Vasiliki-Konstantina and Kapranos, Panagiotis and Klein Gunnewiek, Jennier and Christina, Edelyn and Svolos, Vaios and Quince, Christopher and Gerasimidis, Konstantinos (2024) Dose-dependent effects of enteral nutrition on the faecal microbiota and short chain fatty acids. Clinical Nutrition, 43 (5). pp. 1200-1207. ISSN 0261-5614

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Nurulain, Syed Muhammad
Author

Bibi, Sara and Kerbiriou, Caroline and Uzma and Mckirdy, Shona and Kostrytsia, Anastasiia and Rasheed, Hifza and Eqani, Syed Ali Musstjab Akber Shah and Gerasimidis, Konstantinos and Nurulain, Syed Muhammad and Ijaz, Umer Zeeshan (2024) Gut microbiome and function are altered for individuals living in high fluoride concentration areas in Pakistan. Ecotoxicology and Environmental Safety, 284: 116959. ISSN 0147-6513

See full publications list
Ijaz, Umer
Author

Cholet, Fabien and Vignola, Marta and Quinn, Dominic and Ijaz, Umer Z. and Sloan, William T. and Smith, Cindy J. (2025) Microbial ecology of drinking water biofiltration based on 16S rRNA sequencing: a meta-analysis. Water Research, 281: 123684. ISSN 0043-1354

Saleem, Farrukh and Ameer, Aqsa and Afzal, Farhan and Usman, Muhammad and Irshad, Hamid and Sattar, Sadia and Ijaz, Umer Zeeshan and Javed, Sundus (2025) A cross-sectional survey of poultry management systems, practices and antimicrobial use in relation to disease outbreak in Pakistan. BMC Research Notes, 18: 144. ISSN 1756-0500

Badar, Ayesha and Aqueel, Rhea and Nawaz, Ali and Ijaz, Umer Zeeshan and Malik, Kauser Abdulla (2025) Microbiota transplantation for Cotton Leaf Curl Disease suppression - core microbiome and transcriptome dynamics. Communications Biology, 8 (1): 380. ISSN 2399-3642

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