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Occurrence of Antibiotic Residues in Human Milk From Mexican Women With Diverse Health Conditions.

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Title: Occurrence of Antibiotic Residues in Human Milk From Mexican Women With Diverse Health Conditions.
Authors: Peregrina-Lucano, Alejandro Aarón1 (AUTHOR), Aguilar-Uscanga, Blanca Rosa1 (AUTHOR), Amézcua-López, Jesús Alonso2 (AUTHOR), Rodríguez-Arreola, Ariana1 (AUTHOR) ari03na@hotmail.com, Reuter, Julia (AUTHOR) jreuter@wiley.com
Source: Journal of Food Quality. 5/30/2026, Vol. 2026, p1-7. 7p.
Subjects: Antibiotic residues, Breast milk, Drug residues, Drug resistance in microorganisms, Liquid chromatography-mass spectrometry, Breastfeeding, Prenatal exposure delayed effects
Geographic Terms: Mexico
Abstract: Human breast milk is the optimal source of nutrition for infants, yet it may also serve as a pathway for unintended exposure to pharmaceutical contaminants. This study aimed to determine the occurrence of selected antibiotic residues—amoxicillin, erythromycin, chloramphenicol, sulfamethoxazole and trimethoprim—in breast milk samples collected from 23 lactating women in Mexico. Samples were analysed using a validated high‐performance liquid chromatography coupled with tandem mass spectrometry (HPLC–MS/MS) method. Amoxicillin was the most frequently detected compound, present in 14 of 23 samples at concentrations > 10 ng/mL, while sulfamethoxazole and trimethoprim were identified at trace levels (< 10 ng/mL). Chloramphenicol and erythromycin were each detected in a single sample. Although measured concentrations were below therapeutic thresholds, the detection of multiple antibiotics raises concern about cumulative exposure, potential disruption of the infant gut microbiota and antimicrobial resistance. These findings emphasise the need for biomonitoring programmes, strengthened regulations and further toxicological evaluation of antibiotic residues in human milk to ensure infant safety. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Food Quality is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Occurrence of Antibiotic Residues in Human Milk From Mexican Women With Diverse Health Conditions.
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– Name: Abstract
  Label: Abstract
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  Data: Human breast milk is the optimal source of nutrition for infants, yet it may also serve as a pathway for unintended exposure to pharmaceutical contaminants. This study aimed to determine the occurrence of selected antibiotic residues—amoxicillin, erythromycin, chloramphenicol, sulfamethoxazole and trimethoprim—in breast milk samples collected from 23 lactating women in Mexico. Samples were analysed using a validated high‐performance liquid chromatography coupled with tandem mass spectrometry (HPLC–MS/MS) method. Amoxicillin was the most frequently detected compound, present in 14 of 23 samples at concentrations &gt; 10 ng/mL, while sulfamethoxazole and trimethoprim were identified at trace levels (&lt; 10 ng/mL). Chloramphenicol and erythromycin were each detected in a single sample. Although measured concentrations were below therapeutic thresholds, the detection of multiple antibiotics raises concern about cumulative exposure, potential disruption of the infant gut microbiota and antimicrobial resistance. These findings emphasise the need for biomonitoring programmes, strengthened regulations and further toxicological evaluation of antibiotic residues in human milk to ensure infant safety. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: &lt;i&gt;Copyright of Journal of Food Quality is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1155/jfq/8119288
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 7
        StartPage: 1
    Subjects:
      – SubjectFull: Antibiotic residues
        Type: general
      – SubjectFull: Breast milk
        Type: general
      – SubjectFull: Drug residues
        Type: general
      – SubjectFull: Drug resistance in microorganisms
        Type: general
      – SubjectFull: Liquid chromatography-mass spectrometry
        Type: general
      – SubjectFull: Breastfeeding
        Type: general
      – SubjectFull: Prenatal exposure delayed effects
        Type: general
      – SubjectFull: Mexico
        Type: general
    Titles:
      – TitleFull: Occurrence of Antibiotic Residues in Human Milk From Mexican Women With Diverse Health Conditions.
        Type: main
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          Name:
            NameFull: Peregrina-Lucano, Alejandro Aarón
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            NameFull: Aguilar-Uscanga, Blanca Rosa
      – PersonEntity:
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            NameFull: Amézcua-López, Jesús Alonso
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            NameFull: Rodríguez-Arreola, Ariana
      – PersonEntity:
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            NameFull: Reuter, Julia
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            – D: 30
              M: 05
              Text: 5/30/2026
              Type: published
              Y: 2026
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              Value: 2026
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            – TitleFull: Journal of Food Quality
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