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Nazar N, Kumaran AK, Athira AS, Sivadas M, Panda SK, Banerjee K, Chatterjee NS. Untargeted metabolomics reveals potential health risks associated with chronic exposure to environmentally relevant concentrations of 2-Phenylphenol. Sci Total Environ 2024; 912:169172. [PMID: 38101641 DOI: 10.1016/j.scitotenv.2023.169172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 12/01/2023] [Accepted: 12/05/2023] [Indexed: 12/17/2023]
Abstract
Chronic exposure to endocrine-disrupting chemicals through foods of aquatic origin, at levels that are commonly found in the environment, can affect metabolic health and lead to metabolic diseases. One such chemical is 2-phenylphenol (2-PP), a suspected endocrine disruptor that is used extensively in agriculture and industry, and has become a widespread pollutant in aquatic environments. This study evaluated the risk of exposure to 2-PP through foods of aquatic origin from Vembanad Lake, using a Target Hazard Quotient (THQ) and an untargeted metabolomics approach. The study found that 2-PP content was higher in samples from areas with intense industrial, tourism, and agricultural activities. The average concentration of 2-PP in fish, crustaceans, and mollusks from the Vembanad estuary ranged from 0.012 to 0.017 mg/kg. The mean concentration of 2-PP was used to assess the THQ of exposure to the coastal population. The results showed that the THQ value was <1, indicating a low to moderate health risk for both adults and children. Furthermore, an untargeted metabolomics approach using HPLC-Q-Orbitrap MS was used to study the metabolome changes associated with chronic exposure to 2-PP (at the environmentally relevant concentration) over 60 days in the Wistar albino rat model. The findings indicated significant alterations in the phospholipid, fatty acid, sterol lipid, and amino acid profiles, suggesting that chronic exposure to 2-PP at environmentally relevant concentrations could affect purine, phenylalanine, tyrosine, and cholesterol metabolism.
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Affiliation(s)
- Nasreen Nazar
- National Reference Laboratory, ICAR-Central Institute of Fisheries Technology, Matsyapuri P.O., W. Island, Cochin 682029, India; Department of Chemical Oceanography, School of Marine Sciences, Cochin University of Science and Technology, Cochin 682016, India
| | | | - A S Athira
- National Reference Laboratory, ICAR-Central Institute of Fisheries Technology, Matsyapuri P.O., W. Island, Cochin 682029, India
| | - Megha Sivadas
- National Reference Laboratory, ICAR-Central Institute of Fisheries Technology, Matsyapuri P.O., W. Island, Cochin 682029, India
| | - Satyen Kumar Panda
- National Reference Laboratory, ICAR-Central Institute of Fisheries Technology, Matsyapuri P.O., W. Island, Cochin 682029, India; Food Safety and Standards Authority of India, FDA Bhawan, Kotla Road, New Delhi 110002, India
| | - Kaushik Banerjee
- National Referral Laboratory, ICAR-National Research Centre for Grapes, Manjri Farm, Pune 412 307, India
| | - Niladri Sekhar Chatterjee
- National Reference Laboratory, ICAR-Central Institute of Fisheries Technology, Matsyapuri P.O., W. Island, Cochin 682029, India.
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Nazar N. [Intraventricular haemorrhage in premature newborn babies]. Rev Neurol 2003; 36:272-4. [PMID: 12599158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
This work is the product of the checking of the pathogenesis, incidence, treatment, and prognostic of the intraventricular hemorrhage in the premature newborn. In the revised publications, that include important series of following, this pathology is present in 25% of the infants weighing less than 1,500 g, in which the mortality and morbidity is greater than that of normal newborns, since the development of intraventricular hemorrhage can produce alterations of cerebral blood flow in the immature germinal matrix and in the microvascular net. In consequence the prevention of the intraventricular hemorrhage is directly related with its pathogenesis. It is said that the use of dexamethasone steroids in low doses in the prenatal period, and low doses of indomethacin in the postnatal period, can give better neuroprotection. The surgical treatment is exceptional and has very precise indications, when a progresive hydrocephalus of later apparition is proven. Therefore in premature newborns with intraventricular hemorrhage the best actual treatment is to use an appropiate pharmacological and medical following
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Affiliation(s)
- N Nazar
- Departamento de Neurocirugía, Hospital Escuela, Tegucigalpa, Honduras.
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