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Wang B, Geng M, Li M, Wang X, Gan H, Tang Y, Yang Q, Liu Y, Yang X, Wang S, Liu K, Wei Z, Shao S, Zhu P, Cao Y, Tao F. Preconception exposure to environmental antibiotics among childbearing couples in Anhui and health risk assessment: A multicenter population-based representative study. Ecotoxicol Environ Saf 2023; 265:115514. [PMID: 37783111 DOI: 10.1016/j.ecoenv.2023.115514] [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: 06/04/2023] [Revised: 08/27/2023] [Accepted: 09/21/2023] [Indexed: 10/04/2023]
Abstract
Only few studies have assessed the health effects due to preconception exposure to antibiotics among childbearing couples. This study investigated the status of preconception exposure to antibiotics among childbearing couples in Anhui, associated with health risks, and influencing factors. Overall, 1500 childbearing couples were randomly selected from the Reproductive Health of Childbearing Couples - Anhui Cohort (RHCC-AC). The urinary levels of 40 antibiotics and 2 metabolites were determined, and specific gravity (SG) adjusted concentrations of antibiotics were measured to assess health risks. Generalized linear models were used to assess the associations of urinary SG-adjusted concentration of antibiotics with demographic parameters and diet frequency. The total detection rates of all antibiotics were 98.9 % and 99.3 % in wives and husbands, respectively. The detection rates of veterinary antibiotics (VAs) and preferred as VAs (PVAs) were above 90 %. Among eight antibiotics, sulfonamides (95.1 %) and fluoroquinolones (87.6 %) had the highest detection rates in couples. Approximately four-fifths of couples were simultaneously exposed to at least three different antibiotics, and more than half of them were exposed to low concentrations of antibiotics. 8.9 % and 9.2 % of wives and husbands had hazard index value of antibiotics exposure greater than 1. Antibiotic concentrations were associated with residence, sampling season, and diet frequency. In Anhui, nearly 98 % of childbearing couples have environmental exposure to antibiotics, and VAs and PVAs are the primary antibiotics. More than 8 % of couples had health risks due to antibiotic exposure. Several potential determinants of urinary antibiotics deserve more attention in future research.
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Affiliation(s)
- Baolin Wang
- School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, Anhui 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No. 81 Meishan Road, Hefei, Anhui 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China
| | - Menglong Geng
- School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, Anhui 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No. 81 Meishan Road, Hefei, Anhui 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China
| | - Mengdie Li
- School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China
| | - Xiaorui Wang
- School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China
| | - Hong Gan
- School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, Anhui 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China
| | - Ying Tang
- School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, Anhui 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China
| | - Qianhui Yang
- School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China
| | - Yuwei Liu
- School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China
| | - Xinliu Yang
- School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China
| | - Sheng Wang
- The Center for Scientific Research of Anhui Medical University, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China
| | - Kaiyong Liu
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, Anhui 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No. 81 Meishan Road, Hefei, Anhui 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China
| | - Zhaolian Wei
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Shanshan Shao
- School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, Anhui 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No. 81 Meishan Road, Hefei, Anhui 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China
| | - Peng Zhu
- School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, Anhui 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No. 81 Meishan Road, Hefei, Anhui 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China
| | - Yunxia Cao
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, Anhui 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No. 81 Meishan Road, Hefei, Anhui 230032, China; Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Fangbiao Tao
- School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei, Anhui 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No. 81 Meishan Road, Hefei, Anhui 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No. 81 Meishan Road, Hefei, Anhui 230032, China.
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Affiliation(s)
| | | | | | - Anjali Kunz
- Madigan Army Medical Center, Tacoma, WA, USA
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Sang Y, Zhang J, Liu K, Wang Q, Wang S, Sheng J, Wang L, Zhang D, Li X, Cao H, Liu A, Tao F. Antibiotics biomonitored in urine and obesogenic risk in a community-dwelling elderly population. Ecotoxicol Environ Saf 2021; 210:111863. [PMID: 33406447 DOI: 10.1016/j.ecoenv.2020.111863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 10/27/2020] [Revised: 12/19/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Experimental and epidemiological studies have linked antibiotics use to gut dysbiosis-mediated risk of chronic metabolic diseases. However, whether adiposity is linked to antibiotic exposure in elderly remains inadequately understood. OBJECTIVE To investigate the association between internal exposure of antibiotics and adiposity in elderly by using a biomonitoring method. METHODS We included 990 participants (≥60 years) from the baseline survey of the Cohort of Elderly Health and Environment Controllable Factors in Lu'an city, China, from June to September 2016. Forty-five antibiotics and two metabolites in urine were monitored through liquid chromatography-electrospray tandem mass spectrometry (HPLC-MS/MS). Creatinine-corrected urinary concentrations were used to assess antibiotic exposure levels. Body mass index (BMI), waist circumference (WC) and body fat percentage (BFP) were used as indicators of adiposity. Multiple linear regression and binary logistic regression analyses were used to analyze the association of antibiotic concentrations with obesity-related indices. Subsequently, a gender-stratified analysis was performed. RESULTS Of the included elderly, 50.7% were defined as having overweight/ obesity, 59.8% as having central preobesity/obesity, and 37.5% as having slightly high/high BFP. Linear regression analysis revealed that a 1-unit increase in the logarithmic transformation of norfloxacin concentrations was related with an increase of 0.29 kg/m2 (95% CI: 0.02-0.04), 0.99 cm (95% CI:0.24-1.75), and 0.69% (95% CI:0.21-1.17) in BMI, WC, and BFP, respectively. Compared with the control group, exposure to doxycycline (tertile 2: odds ratio, 2.06 [95% CI: 1.12-3.76]) and norfloxacin (tertile 2: 2.13 [1.05-4.29]; tertile 3: 2.07 [1.03-4.17]) had BMI-based overweight/obesity risk. Additionally, ciprofloxacin (tertile 2: 2.06 [1.12-3.76]), norfloxacin (tertile 3: 2.95 [1.34-6.49]), and florfenicol (tertile 3: 1.84 [1.07-3.14]) were related to WC-based central preobesity/obesity risk. Norfloxacin (tertile 3: 2.54 [1.23-5.24]) was positively associated with a slightly high/high BFP risk. Gender-stratified analysis demonstrated an increased adiposity risk in women compared with men. CONCLUSIONS Our research provided an evidence that exposure to specific types of antibiotics (tetracyclines and fluoroquinolones) probably from the food chain contributed to obesity in elderly. Prospective cohort studies with larger sample size are warrented to explore the causation.
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Affiliation(s)
- Yanru Sang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University),Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China; School of Health Management, Anhui Medical University, Hefei 230032, China
| | - Jingjing Zhang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University),Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China; School of Health Management, Anhui Medical University, Hefei 230032, China
| | - Kaiyong Liu
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University),Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China; School of Health Management, Anhui Medical University, Hefei 230032, China.
| | - Qunan Wang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Sufang Wang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Jie Sheng
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Li Wang
- School of Health Management, Anhui Medical University, Hefei 230032, China
| | - Dongmei Zhang
- School of Health Management, Anhui Medical University, Hefei 230032, China
| | - Xiude Li
- Lu'an Center of Disease Control and Prevention, Lu'an 237000, Anhui, China
| | - Hongjuan Cao
- Lu'an Center of Disease Control and Prevention, Lu'an 237000, Anhui, China
| | - Annuo Liu
- School of Nursing, Anhui Medical University, Hefei 230032, Anhui, China
| | - Fangbiao Tao
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University),Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei 230032, Anhui, China; School of Health Management, Anhui Medical University, Hefei 230032, China
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Minh NNQ, Toi PV, Qui LM, Tinh LBB, Ngoc NT, Kim LTN, Uyen NH, Hang VTT, Chinh B’Krong NTT, Tham NT, Khoa TD, Khuong HD, Vi PQ, Phuc NNH, Vien LTM, Pouplin T, Khanh DV, Phuong PN, Lam PK, Wertheim HFL, Campbell JI, Baker S, Parry CM, Bryant JE, Schultsz C, Hung NT, de Jong MD, van Doorn HR. Antibiotic use and prescription and its effects on Enterobacteriaceae in the gut in children with mild respiratory infections in Ho Chi Minh City, Vietnam. A prospective observational outpatient study. PLoS One 2020; 15:e0241760. [PMID: 33147269 PMCID: PMC7641406 DOI: 10.1371/journal.pone.0241760] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 10/20/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Treatment guidelines do not recommend antibiotic use for acute respiratory infections (ARI), except for streptococcal pharyngitis/tonsillitis and pneumonia. However, antibiotics are prescribed frequently for children with ARI, often in absence of evidence for bacterial infection. The objectives of this study were 1) to assess the appropriateness of antibiotic prescriptions for mild ARI in paediatric outpatients in relation to available guidelines and detected pathogens, 2) to assess antibiotic use on presentation using questionnaires and detection in urine 3) to assess the carriage rates and proportions of resistant intestinal Enterobacteriaceae before, during and after consultation. MATERIALS AND METHODS Patients were prospectively enrolled in Children's Hospital 1, Ho Chi Minh City, Vietnam and diagnoses, prescribed therapy and outcome were recorded on first visit and on follow-up after 7 days. Respiratory bacterial and viral pathogens were detected using molecular assays. Antibiotic use before presentation was assessed using questionnaires and urine HPLC. The impact of antibiotic usage on intestinal Enterobacteriaceae was assessed with semi-quantitative culture on agar with and without antibiotics on presentation and after 7 and 28 days. RESULTS A total of 563 patients were enrolled between February 2009 and February 2010. Antibiotics were prescribed for all except 2 of 563 patients. The majority were 2nd and 3rd generation oral cephalosporins and amoxicillin with or without clavulanic acid. Respiratory viruses were detected in respiratory specimens of 72.5% of patients. Antibiotic use was considered inappropriate in 90.1% and 67.5%, based on guidelines and detected pathogens, respectively. On presentation parents reported antibiotic use for 22% of patients, 41% of parents did not know and 37% denied antibiotic use. Among these three groups, six commonly used antibiotics were detected with HPLC in patients' urine in 49%, 40% and 14%, respectively. Temporary selection of 3rd generation cephalosporin resistant intestinal Enterobacteriaceae during antibiotic use was observed, with co-selection of resistance to aminoglycosides and fluoroquinolones. CONCLUSIONS We report overuse and overprescription of antibiotics for uncomplicated ARI with selection of resistant intestinal Enterobacteriaceae, posing a risk for community transmission and persistence in a setting of a highly granular healthcare system and unrestricted access to antibiotics through private pharmacies. REGISTRATION This study was registered at the International Standard Randomised Controlled Trials Number registry under number ISRCTN32862422: http://www.isrctn.com/ISRCTN32862422.
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Affiliation(s)
- Ngo Ngoc Quang Minh
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
- Children’s Hospital 1, Ho Chi Minh City, Vietnam
| | - Pham Van Toi
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Le Minh Qui
- Children’s Hospital 1, Ho Chi Minh City, Vietnam
| | | | | | | | - Nguyen Hanh Uyen
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Vu Thi Ty Hang
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | | | - Nguyen Thi Tham
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Thai Dang Khoa
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Huynh Duy Khuong
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Pham Quynh Vi
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Nguyen Ngoc Hong Phuc
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Le Thi Minh Vien
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Thomas Pouplin
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Doan Van Khanh
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Pham Nguyen Phuong
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Phung Khanh Lam
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Heiman F. L. Wertheim
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
- Nuffield Department of Clinical Medicine, Centre for Tropical Medicine and Global Health, University of Oxford, Henry Wellcome Building for Molecular Physiology, Old Road Campus, Headington, Oxford, United Kingdom
| | - James I. Campbell
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Stephen Baker
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Christopher M. Parry
- Clinical Sciences, Liverpool School of Tropical Medicine, Pembroke Pl, Liverpool, United Kingdom
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
| | - Juliet E. Bryant
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Constance Schultsz
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
- Department of Global Health-Amsterdam, Institute of Global Health and Development, Amsterdam University Medical Centres, University of Amsterdam, Amsterdam, The Netherlands
| | | | - Menno D. de Jong
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
- Department of Medical Microbiology, Amsterdam University Medical Centres, Amsterdam, The Netherlands
| | - H. Rogier van Doorn
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
- Nuffield Department of Clinical Medicine, Centre for Tropical Medicine and Global Health, University of Oxford, Henry Wellcome Building for Molecular Physiology, Old Road Campus, Headington, Oxford, United Kingdom
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Scharf B, Schmidt TJ, Rabbani S, Stork C, Dobrindt U, Sendker J, Ernst B, Hensel A. Antiadhesive natural products against uropathogenic E. coli: What can we learn from cranberry extract? J Ethnopharmacol 2020; 257:112889. [PMID: 32311481 DOI: 10.1016/j.jep.2020.112889] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 02/03/2020] [Revised: 04/14/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Extracts from Cranberry fruits (Vaccinium macrocarpon) are traditionally used against urinary tract infections, mainly due to antiadhesive activity against uropathogenic E. coli (UPEC), but the exact mode of action and compounds, responsible for the activity, are unknown. AIM OF THE STUDY i. To investigate if cranberry extract acts only by a single component or must be assessed as a multi-active-compound preparation; ii to screen isolated cranberry-related natural products under in vitro conditions to pinpoint natural products with antiadhesive effects against UPEC, followed by in silico calculations (QSAR) to predict potential antiadhesive compounds; iii. investigations by using urine samples from cranberry treated volunteers for evaluation on the bacterial transcriptome and the mannose-binding side of FimH, iv. to investigate if besides Tamm Horsfall Protein induction in the kidney, the extract acts also directly against UPEC. MATERIAL AND METHODS Antiadhesive activity of 105 compounds was determined by flow cytometric adhesion assay (UPEC UTI89 on T24 bladder cells). Urine samples from 16 volunteers treated with cranberry extract (p.o., 7 days, 900 mg/day) were used for ex vivo testing concerning influence on the bacterial transcriptome (Illumina RNA-seq) and interaction with the mannose binding domain of type-1 fimbriae. RESULTS i. The antiadhesive effect of cranberry extract cannot be attributed to a single compound or to a single fraction. ii. Unglycosylated flavones and flavonols with bulky substitution of the B ring contribute to the antiadhesive activity. 3'-8″-biflavones and flavolignans (not related to cranberry fruits) were identified as potent antiadhesive compounds against UPEC. iii. QSAR yielded a model with good statistical performance and sufficient internal and external predictive ability. iv. Urine samples from male cranberry-treated volunteers indicated significant interaction with the mannose binding domain of type-1 fimbriae, which correlated with the amount of Tamm-Horsfall Protein in the test samples. v Cranberry extract did not influence the UPEC transcriptome; gene expression of bacterial adhesins (P-, S-fimbrae, curli) was not influenced by the urine samples, while a slight, but non-significant upregulation of type 1 fimbriae was observed. CONCLUSIONS B-ring substituted flavones and flavonols from cranberry contribute to the antiadhesive activity against UPEC by inhibition of the FimH-mediated interaction with the host cell bladder epithelium.
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Affiliation(s)
- Birte Scharf
- University of Münster, Institute of Pharmaceutical Biology and Phytochemistry, Münster, Germany
| | - Thomas J Schmidt
- University of Münster, Institute of Pharmaceutical Biology and Phytochemistry, Münster, Germany
| | - Said Rabbani
- University of Basel, Department Pharmaceutical Sciences, Molecular Pharmacy, Basel, Switzerland
| | - Christoph Stork
- University Hospital Münster, Institute of Hygiene, Münster, Germany
| | - Ulrich Dobrindt
- University Hospital Münster, Institute of Hygiene, Münster, Germany
| | - Jandirk Sendker
- University of Münster, Institute of Pharmaceutical Biology and Phytochemistry, Münster, Germany
| | - Beat Ernst
- University of Basel, Department Pharmaceutical Sciences, Molecular Pharmacy, Basel, Switzerland
| | - Andreas Hensel
- University of Münster, Institute of Pharmaceutical Biology and Phytochemistry, Münster, Germany.
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Zhang J, Liu X, Zhu Y, Yang L, Sun L, Wei R, Chen G, Wang Q, Sheng J, Liu A, Tao F, Liu K. Antibiotic exposure across three generations from Chinese families and cumulative health risk. Ecotoxicol Environ Saf 2020; 191:110237. [PMID: 31986454 DOI: 10.1016/j.ecoenv.2020.110237] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [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: 10/07/2019] [Revised: 01/09/2020] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
Extensive antibiotic exposure in the general population has been documented by bio-monitoring, but data regarding antibiotic burden across three generations in families living in the same household are lacking. We investigated the distribution of antibiotics and the potential health risk among the three generations by selecting 691 participants from 256 households in Fuyang city, China. A total of 45 antibiotics and two metabolites were screened in urine samples through liquid chromatography electrospray tandem mass spectrometry. In total, 34 antibiotics were found in the samples with an overall detection frequency of 92.0%, and the detection frequencies of individual antibiotic ranged from 0.3% to 28.7%. Specifically, the concentrations of seven antibiotics (azithromycin, amoxicillin, oxytetracycline, levofloxacin, norfloxacin, trimethoprim and sulfamethoxazole) were extremely high (i.e., above 10, 000 ng/mL). The detection rates of tetracyclines were significantly different among the three generations, with parents having the highest detection rate. Penicillin V, chlortetracycline, doxycycline, enrofloxacin, and ciprofloxacin showed a higher detection frequency in parents, whereas tetracycline, danofloxacin, and ofloxacin were more likely to be found in grandparents. The proportions of the sum of the daily exposure dose of VAs and PVAs more than 1 μg/kg/d in children, parents, and grandparents were 31.6%, 39.5%, and 26.5%, respectively. A hazard index (HI) greater than 1 was observed in 14.7% children, which was less than the 23.6% in parents and slightly higher than the 11.8% in grandparents. Ciprofloxacin was the biggest contributor to HI among the three generations. Collectively, these findings indicate that households are widely exposed to various antibiotics in Fuyang city, where parents had the highest health risk associated with the disturbance of gut microbiota.
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Affiliation(s)
- Jingjing Zhang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Xinji Liu
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Yitian Zhu
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Linsheng Yang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Liang Sun
- Fuyang Center of Disease Control and Prevention, Fuyang, Anhui, 236000, China
| | - Rong Wei
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Guimei Chen
- School of Health Management, Anhui Medical University, Hefei, 230032, China
| | - Qunan Wang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Jie Sheng
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Annuo Liu
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Fangbiao Tao
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei, 230032, Anhui, China.
| | - Kaiyong Liu
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei, 230032, Anhui, China; Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, 48109, USA.
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Abstract
BACKGROUND The case concerns a 30-year-old woman in the 24th week of pregnancy presenting to the medical emergency room with fever and abdominal pain. Urine sediment microscopy revealed the presence of unknown needle-shaped crystals. METHODS Crystals identification was performed by Fourier-Transform Infrared Spectroscopy coupled to Attenuated Total Reflectance (FTIR-ATR). RESULTS Amoxicillin crystals were verified with semiquantitative results of 87.7%. CONCLUSIONS Drug-induced crystalluria is a frequent finding in urine examination and it may be asymptomatic. FTIR spectroscopy is a rapid and specific tool in identification of crystals and could be useful supporting renal disease diagnosis and monitoring drug therapy.
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Huang Y, Zhang Z, Hou T, Shi J, Huang W, Bai Z, Long D, Huang X, Yan S. Antibiotic burden of school children from Tibetan, Hui, and Han groups in the Qinghai-Tibetan Plateau. PLoS One 2020; 15:e0229205. [PMID: 32092096 PMCID: PMC7039500 DOI: 10.1371/journal.pone.0229205] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 01/31/2020] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Given their geographical proximity but differences in cultural and religious dietary customs, we hypothesize that children from the three main ethnic populations (Han, Hui, and Tibetan) residing in the Qinghai-Tibetan Plateau region differs in their non-iatrogenic antibiotic loads. METHODS To determine the antibiotic burden of the school children unrelated to medical treatment, we quantified the antibiotic residues in morning urine samples from 92 Han, 72 Tibetan, and 85 Muslim Hui primary school children aged 8 to 12 years using high-performance liquid chromatography-tandem mass spectrometry, and performed correlation analysis between these data and concurrent dietary nutrition assessments. RESULTS Sixteen of the 18 targeted antibiotics (4 macrolides, 3 β-lactams, 2 tetracyclines, 4 quinolones, 3 sulfonamides, and 2 aminoanols) were identified in the urine samples with an overall detection frequency of 58.63%. The detection frequency of the six antibiotic classes ranged from 1.61% to 32.53% with ofloxacin showing the single highest frequency (18.47%). Paired comparison analysis revealed significant differences in antibiotic distribution frequency among groups, with Tibetans having higher enrofloxacin (P = 0.015) and oxytetracycline (P = 0.021) than Han children. Norfloxacin (a human/veterinary antibiotic) was significantly higher in the Hui children than in the Han children (P = 0.024). Dietary nutrient intake assessments were comparable among participants, showing adequate levels of essential vitamins and minerals across all three ethnic groups. However, significant differences in specific foods were observed among groups, notably in lower fat consumption in the Hui group. CONCLUSIONS The introduction and accumulation of antibiotic residues in school children through non-iatrogenic routes (food or environmental sources) poses a serious potential health risk and merits closer scrutiny to determine the sources. While the exact sources of misused or overused antibiotics remains unclear, further study can potentially correlate ethnicity-specific dietary practices with the sources of contamination.
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Affiliation(s)
- Yushan Huang
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Zuhong Zhang
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Tianchun Hou
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Jingfang Shi
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Tianhe District, Guangzhou, China
| | - Wenjie Huang
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Tianhe District, Guangzhou, China
| | - Zhao Bai
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Danfeng Long
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Xiaodan Huang
- School of Public Health, Lanzhou University, Lanzhou, China
- * E-mail: (XH); (SY)
| | - Shijuan Yan
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Tianhe District, Guangzhou, China
- * E-mail: (XH); (SY)
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9
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Abbott IJ, van Gorp E, Wijma RA, Meletiadis J, Mouton JW, Peleg AY. Evaluation of pooled human urine and synthetic alternatives in a dynamic bladder infection in vitro model simulating oral fosfomycin therapy. J Microbiol Methods 2020; 171:105861. [PMID: 32035114 DOI: 10.1016/j.mimet.2020.105861] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 02/03/2020] [Accepted: 02/03/2020] [Indexed: 10/25/2022]
Abstract
The impact of the bladder environment on fosfomycin activity and treatment response is uncertain. Standard laboratory media does not reflect the biomatrix of urine, where limited nutritional factors are important for growth and antimicrobial kill rates. We compared fosfomycin activity against Enterobacteriaceae in laboratory media, human urine and synthetic alternatives. Sixteen clinical isolates (8-Escherichia coli, 4-Enterobacter cloacae, 4-Klebsiella pneumoniae) were studied with broth microdilution (BMD) susceptibility, static time-kill assays and dynamic testing in a bladder infection model simulating a 3 g oral fosfomycin dose. Mueller-Hinton broth (MHB) with and without 25 mg/L glucose-6-phosphate (G6P), pooled midstream urine (MSU), pooled 24 h urine collection (24 U), artificial urine medium (AUM) and synthetic human urine (SHU) were compared. BMD susceptibility, bacterial growth and response to static fosfomycin concentrations in urine were best matched with SHU and were distinctly different when tested in MHB with G6P. Fosfomycin exposure in the bladder infection model was accurately reproduced (bias 4.7 ± 6.2%). Under all media conditions, 8 isolates (2-E. coli, 2-E. cloacae, 4-K. pneumoniae) re-grew and 4 isolates (4-E. coli) were killed. The remaining isolates (2-E. coli, 2-E. cloacae) re-grew variably in urine and synthetic media. Agar dilution MIC failed to predict re-growth, whereas BMD MIC in media without G6P performed better. Emergence of resistance was restricted in synthetic media. Overall, SHU provided the best substitute for urine for in vitro modelling of antimicrobial treatment of uropathogens, and these data have broader utility for improved preclinical testing of antimicrobials for urinary tract infections.
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Affiliation(s)
- Iain J Abbott
- Department of Infectious Diseases, The Alfred and Central Clinical School, Monash University, Melbourne, VIC, Australia; Department of Medical Microbiology and Infectious Diseases, Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Elke van Gorp
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Rixt A Wijma
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC University Medical Center, Rotterdam, the Netherlands; Department of Hospital Pharmacy, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - Joseph Meletiadis
- Clinical Microbiology Laboratory, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, Haidari, Athens, Greece
| | - Johan W Mouton
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Anton Y Peleg
- Department of Infectious Diseases, The Alfred and Central Clinical School, Monash University, Melbourne, VIC, Australia; Infection and Immunity Program, Monash Biomedicine Discovery Institute, Department of Microbiology, Monash University, Clayton, VIC, Australia.
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10
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Zhu Y, Liu K, Zhang J, Liu X, Yang L, Wei R, Wang S, Zhang D, Xie S, Tao F. Antibiotic body burden of elderly Chinese population and health risk assessment: A human biomonitoring-based study. Environ Pollut 2020; 256:113311. [PMID: 31813705 DOI: 10.1016/j.envpol.2019.113311] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 06/30/2019] [Revised: 09/24/2019] [Accepted: 09/25/2019] [Indexed: 06/10/2023]
Abstract
Recently, the widespread use of antibiotic has raised concerns about the potential health risks associated with their microbiological effect. In the present study, we investigated 990 elderly individuals (age ≥ 60 years) from the Cohort of Elderly Health and Environment Controllable Factors in West Anhui, China. A total of 45 representative antibiotics and two antibiotic metabolites were monitored in urine samples through liquid chromatography electrospray tandem mass spectrometry. The results revealed that 34 antibiotics were detected in 93.0% of all urine samples and the detection frequencies of each antibiotic varied between 0.2% and 35.5%. The overall detection frequencies of seven human antibiotics (HAs), 10 veterinary antibiotics (VAs), three antibiotics preferred as HAs (PHAs), and 14 preferred as VAs (PVAs) in urines were 27.4%, 62.9%, 30.9% and 72.7%, respectively. Notably, the samples with concentrations of six PVAs (sulfamethoxazole, trimethoprim, oxytetracycline, danofloxacin, norfloxacin and lincomycin) above 5000 ng/mL accounted for 1.7% of all urine samples. Additionally, in 62.7% of urine samples, the total antibiotic concentration was in the range of the limits of detection to 20.0 ng/mL. Furthermore, the elderly individuals with the sum of estimated daily intakes of VAs and PVAs more than 1 μg/kg/day accounted for 15.2% of all participants, and a health risk related to change in gut microbiota under antibiotic stimulation was expected in 6.7% of the elderly individuals. Especially, ciprofloxacin was the foremost contributor to the health risk, and its hazard quotient value was more than one in 3.5% of all subjects. Taken together, the elderly Chinese people were extensively exposed to VAs, and some elderly individuals may have a health risk associated with dysbiosis of the gut microbiota.
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Affiliation(s)
- Yitian Zhu
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Kaiyong Liu
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Jingjing Zhang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Xinji Liu
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Linsheng Yang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Rong Wei
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Sufang Wang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Dongmei Zhang
- School of Health Management, Anhui Medical University, Hefei, 230032, China
| | - Shaoyu Xie
- Lu'an Center of Disease Control and Prevention, Lu'an, Anhui, 237000, PR China
| | - Fangbiao Tao
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, No 81 Meishan Road, Hefei, 230032, Anhui, China.
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11
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Chen TW, Rajaji U, Chen SM, Muthumariyappan A, Mogren MMA, Jothi Ramalingam R, Hochlaf M. Facile synthesis of copper(II) oxide nanospheres covered on functionalized multiwalled carbon nanotubes modified electrode as rapid electrochemical sensing platform for super-sensitive detection of antibiotic. Ultrason Sonochem 2019; 58:104596. [PMID: 31450358 DOI: 10.1016/j.ultsonch.2019.05.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 03/05/2019] [Revised: 05/07/2019] [Accepted: 05/09/2019] [Indexed: 05/17/2023]
Abstract
Herein, we report a super-active electrocatalyst of copper(II) oxide nanoparticles (CuO NPs) decorated functionalized multiwalled carbon nanotubes (CuO NPs@f-MWCNTs) by the ultrasonic method. The as-synthesized CuO NPs@f-MWCNTs was characterized through the FESEM, XPS, XRD and electrochemical impedance spectroscopy (EIS). The combination of highly active CuO NPs and highly conductive f-MWCNTs film with rapid detection enables this nanohybrid to display excellent electrochemical performance towards anesthesia drug. Furthermore, the hybrid electrocatalyst modified SPCE was developed for the determination of flunitrazepam (FTM) for the first time. FTM is important anesthesia drug with high adverse effect in human body. Benefiting from the synergistic reaction of CuO NPs and f-MWCNTs, this nanohybrid exhibited high sensitivity and specificity towards FTM electro-reduction. The CuO NPs@f-MWCNTs film modified SPCE exhibits outstanding electrochemical activity including excellent reproducibility, wide linear range from 0.05 to 346.6 µM with nanomolar limit of detection for FTM detection. Further, the as-modified CuO NPs@f-MWCNTs/SPCE has been applied to determination of FTM in biological and drug samples with satisfactory recovery results, thereby showing a notable potential for extensive (bio) sensor applications.
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Affiliation(s)
- Tse-Wei Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan; Research and Development Center for Smart Textile Technology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan
| | - Umamaheswari Rajaji
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan.
| | - Akilarasan Muthumariyappan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan
| | - Muneerah Mogren Al Mogren
- Chemistry Department, Faculty of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - R Jothi Ramalingam
- Surfactant Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box-2455, Riyadh 11451, Saudi Arabia
| | - Majdi Hochlaf
- Laboratoire Modelisation et Simulation Multi Echelle, MSME UMR 8208 CNRS, Universit́ e Paris-Est, ́5 Blvd. Descartes, 77454 Marne-la-Vallee, France
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12
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Dix-Cooper L, Kosatsky T. Use of antibacterial toothpaste is associated with higher urinary triclosan concentrations in Asian immigrant women living in Vancouver, Canada. Sci Total Environ 2019; 671:897-904. [PMID: 30947060 DOI: 10.1016/j.scitotenv.2019.03.379] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 12/22/2018] [Revised: 03/24/2019] [Accepted: 03/24/2019] [Indexed: 05/11/2023]
Abstract
BACKGROUND Triclosan is an antibacterial added to consumer products including toothpastes, cosmetics, and plastic cutting boards. Known to disrupt reproductive and hormonal functioning in animals, epidemiological studies indicate that exposure to triclosan may have similar effects on human health. METHODS 100 women aged 19 to 45 years born in India or China, Hong Kong, and Taiwan new to the Vancouver (Canada) area were recruited in 2015-2016 by word of mouth, public advertisements, and contacts in health and cultural organizations. Participants completed an interview which queried potential sources of triclosan exposure at home and at work and their urine was tested for triclosan by GC-MS. Determinants of urinary triclosan were assessed by Wilcoxon signed-rank test. RESULTS Triclosan was detected in 62% of urine samples, with an overall GM of 14.5 μg/L (95% CI: 9.7-21.7 μg/L; range: <LOD to 1900 μg/L). Colgate Total® toothpaste users had higher urinary triclosan concentrations (median = 34.0 μg/L) than non-users (median = 2.5 μg/L, ρ < 0.001), a result which was unaffected by adjustment for age, income, BMI, and country of birth. South Asian born women had elevated urinary triclosan compared to East Asian born women. CONCLUSION Triclosan exposure via a specific antibacterial toothpaste brand was identified in reproductive age newcomer women in Canada. Health education around brushing teeth well while using lower toothpaste volumes or choosing triclosan-free toothpaste would reduce triclosan exposure.
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Affiliation(s)
- L Dix-Cooper
- Environmental Health Services, British Columbia Centre for Disease Control (BCCDC), Vancouver, BC, Canada.
| | - T Kosatsky
- Environmental Health Services, British Columbia Centre for Disease Control (BCCDC), Vancouver, BC, Canada
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13
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Suraritdechachai S, Charoenpakdee C, Young I, Maher S, Vilaivan T, Praneenararat T. Rapid Detection of the Antibiotic Sulfamethazine in Pig Body Fluids by Paper Spray Mass Spectrometry. J Agric Food Chem 2019; 67:3055-3061. [PMID: 30799617 DOI: 10.1021/acs.jafc.9b00500] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We report herein a practical method for nonlethal detection of the antibiotic sulfamethazine in pig body fluids via the combination of simple extraction and paper spray mass spectrometry (PS-MS). This method requires minimal sample preparation while still providing high sensitivities and accuracies in complex matrices including pig whole blood (LOD = 7.9 μg/L; recovery = 95.4-103.7%), pig serum (LOD = 11.5 μg/L; recovery = 103.2-106.2%), and synthetic urine (LOD = 11.2 μg/L; recovery = 99.1-103.2%). Given a known correlation between the level of sulfamethazine in body fluids and edible tissues, this method shows great promise as a practical and nonlethal solution for rapid testing of the drug, which can substantially aid managerial decision in the livestock industry.
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Affiliation(s)
- Surased Suraritdechachai
- Department of Chemistry, Faculty of Science , Chulalongkorn University , Phayathai Road , Pathumwan, Bangkok , 10330 , Thailand
- The Chemical Approaches for Food Applications Research Group, Faculty of Science , Chulalongkorn University , Phayathai Road , Pathumwan, Bangkok , 10330 , Thailand
| | - Chayan Charoenpakdee
- Department of Chemistry, Faculty of Science , Chulalongkorn University , Phayathai Road , Pathumwan, Bangkok , 10330 , Thailand
- Organic Synthesis Research Unit, Department of Chemistry, Faculty of Science , Chulalongkorn University , Phayathai Road , Pathumwan, Bangkok , 10330 , Thailand
| | - Iain Young
- Institute of Integrative Biology , University of Liverpool , Crown Street , Liverpool , L69 7ZB , United Kingdom
| | - Simon Maher
- Department of Electrical Engineering & Electronics , University of Liverpool , Brownlow Hill , Liverpool , L69 3GJ , United Kingdom
| | - Tirayut Vilaivan
- Department of Chemistry, Faculty of Science , Chulalongkorn University , Phayathai Road , Pathumwan, Bangkok , 10330 , Thailand
- Organic Synthesis Research Unit, Department of Chemistry, Faculty of Science , Chulalongkorn University , Phayathai Road , Pathumwan, Bangkok , 10330 , Thailand
| | - Thanit Praneenararat
- Department of Chemistry, Faculty of Science , Chulalongkorn University , Phayathai Road , Pathumwan, Bangkok , 10330 , Thailand
- The Chemical Approaches for Food Applications Research Group, Faculty of Science , Chulalongkorn University , Phayathai Road , Pathumwan, Bangkok , 10330 , Thailand
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14
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Khadam MW, Ashraf MM, Naz U, Bukhari NI, Tahir IM, Asghar D. Disposition kinetics, renal clearance and urinary excretion of cefixime in adolescent Pakistani boys - DRUG ANALYSIS REPORT. J PAK MED ASSOC 2019; 69:367-372. [PMID: 30890829] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To investigate the role of environmental variation, genetic differences and age on disposition kinetics, renal clearance and urinary excretion of oral cefixime 400mg in healthy boys. METHODS The cross-sectional study was conducted at the University of Agriculture, Faisalabad, Pakistan, from August 2014 to July 2015, and comprised healthy boys aged 12-17 years after oral administration of cefixime capsule 400mg. Serum and urine samples were collected before and after drug administration and were stored at - 20oC until evaluation of cefixime concentration in each sample by high performance liquid chromatography. Drug concentration versus time data was used for pharmacokinetic calculations using one compartment model. Data obtained for urinary excretion and renal clearance of cefixime was analysed using regression-correlation analysis. RESULTS There were eight boys in the study. Mean values for elimination half-life, volume of distribution and total body clearance were 2.4}0.2 hours, 0.9}0.0L/kg and 0.3}0.0L/h/kg, respectively. The ratio of renal clearance of cefixime (0.7 ml/min/kg) to that of endogenous creatinine (0.8ml/min/kg) was 0.9. Cumulative mean percentage of cefixime excreted from young adolescent boys was 11.6 } 0.5%. CONCLUSION Other than filtration, back-diffusion was also involved in renal handling of cefixime. There was enough indication that major portion of cefixime was excreted from a young body through bile.
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Wang H, Tang C, Yang J, Wang N, Jiang F, Xia Q, He G, Chen Y, Jiang Q. Predictors of urinary antibiotics in children of Shanghai and health risk assessment. Environ Int 2018; 121:507-514. [PMID: 30292143 DOI: 10.1016/j.envint.2018.09.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 06/18/2018] [Revised: 09/19/2018] [Accepted: 09/19/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND An extensive exposure to antibiotics has been confirmed in children, but the predictors and potential health risk remain unclear. OBJECTIVE To investigate the predictors of antibiotics in urine and potential health risk in children of Shanghai. METHODS We selected 284 school children aged 8-11 years from a central area of Shanghai, China, in 2017. Ultra-performance liquid chromatography coupled with high-resolution mass spectrometry was used to measure 20 antibiotics, including four human antibiotics (HAs), six veterinary antibiotics (VAs), 10 human/veterinary antibiotics (H/VAs), and three metabolites in first morning urine. Logistic regression model was used to examine the associations of 17 variables related to demographic and socioeconomic factors, recent antibiotic use, drinking water intake, food consumption, and anthropometric measurements with the detection frequency of HAs, VAs, or H/VAs in urine. After daily intake was estimated, health risk was assessed for VAs and H/VAs by using hazard quotient (HQ) and hazard index (HI) based on microbiological or toxicological effects. RESULTS The detection frequencies of 20 antibiotics and three metabolites ranged from 0 to 27.8% with an overall detection frequency being 56.0%. The detection frequency of HAs increased with age and screen time at weekend. Sex, age, family income and screen time were positively associated with the detection frequencies of VAs and H/VAs. Children reporting antibiotic use in the past three months had a higher detection frequency of HAs. Children with a higher consumption frequency of dairy products had a higher detection frequency of VAs + H/VAs, but a lower detection frequency of HAs. An increased overall detection frequency of all antibiotics was seen in children with higher consumption frequencies of aquatic products, livestock and poultry meat, or milk and dairy products. HQ >1 was only found for ciprofloxacin (5.6%) and ofloxacin (0.4%) based on microbiological effect. HI >1 was found in 6.0% of children for microbiological effect and none was found for toxicological effect. CONCLUSIONS Predictors for antibiotics in urine for children included sex, age, family income, screen time, clinical use, and animal-derived food consumption. There was potential health risk for children with exposure to antibiotics.
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Affiliation(s)
- Hexing Wang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Chuanxi Tang
- Changning District Center for Disease Control and Prevention, Changning District, Shanghai 200051, China
| | - Jiaqi Yang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Na Wang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Feng Jiang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Qinghua Xia
- Changning District Center for Disease Control and Prevention, Changning District, Shanghai 200051, China
| | - Gengsheng He
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Yue Chen
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1G 5Z3, Canada.
| | - Qingwu Jiang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China.
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Barceló B, Rodriguez A, Ocon Lopez M, Costa-Bauza A, Gomila I, Badal Cogul MB, Grases F. Orbitrap™ high-resolution mass spectrometry for the identification of amoxicillin crystalluria. Clin Chem Lab Med 2018; 56:268-271. [PMID: 29729145 DOI: 10.1515/cclm-2018-0163] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 04/04/2018] [Indexed: 11/15/2022]
Affiliation(s)
- Bernardino Barceló
- Clinical Toxicology Unit, Clinical Analysis Department, Hospital Universitari Son Espases, Research Institute of Health Sciences (IdISBa), Palma de Mallorca, Spain, Phone: +87120627, Fax: +871909706
| | - Adrian Rodriguez
- Laboratory of Renal Lithiasis Research, University Institute of Health Sciences Research (IUNICS-IdISBa), University of Balearic Islands, Palma de Mallorca, Spain
| | - Marta Ocon Lopez
- Department of Intensive Care Medicine, Hospital Universitari Son Espases, Palma de Mallorca, Spain
| | - Antonia Costa-Bauza
- Laboratory of Renal Lithiasis Research, University Institute of Health Sciences Research (IUNICS-IdISBa), University of Balearic Islands, Palma de Mallorca, Spain
| | - Isabel Gomila
- Clinical Analysis Department, Hospital Universitari Son Llàtzer, Research Institute of Health Sciences (IdISBa), Palma de Mallorca, Spain
| | | | - Félix Grases
- Laboratory of Renal Lithiasis Research, University Institute of Health Sciences Research (IUNICS-IdISBa), University of Balearic Islands, Palma de Mallorca, Spain
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Hoover RK, Alcorn H, Lawrence L, Paulson SK, Quintas M, Cammarata SK. Delafloxacin Pharmacokinetics in Subjects With Varying Degrees of Renal Function. J Clin Pharmacol 2018; 58:514-521. [PMID: 29251785 PMCID: PMC5901045 DOI: 10.1002/jcph.1041] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 10/12/2017] [Indexed: 11/29/2022]
Abstract
Delafloxacin, a fluoroquinolone, has activity against gram-positive organisms including methicillin-resistant Staphylococcus aureus and fluoroquinolone-susceptible and -resistant gram-negative organisms. This study was conducted to determine delafloxacin pharmacokinetics after a single intravenous infusion or oral dose administration in subjects with varying degrees of renal function. The study was an open-label, parallel-group crossover study in subjects with normal renal function or with mild, moderate, or severe renal impairment. Subjects received 300 mg delafloxacin intravenously, placebo intravenously, and 400 mg delafloxacin orally in 3 periods separated by ≥14-day washouts. Blood and urine pharmacokinetic parameters were calculated using noncompartmental methods. Delafloxacin total clearance decreased with decreasing renal function, with a corresponding increase in AUC0-∞ . After intravenous administration, mean total clearance was 13.7 and 7.07 L/h, and mean AUC0-∞ was 22.6 and 45.0 μg·h/mL in normal and severe renal subjects, respectively. Mean renal clearance as determined by urinary excretion was 6.03 and 0.44 L/h in normal and severe renal impairment subjects, respectively. Total clearance exhibited linear relationships to eGFR and CLCR . Similar observations were found after oral administration of delafloxacin. Single doses of delafloxacin 300 mg intravenously and 400 mg orally were well tolerated in all groups. In conclusion, renal insufficiency has an effect on delafloxacin clearance; a dosing adjustment for intravenous dosing is warranted for patients with severe renal impairment (eGFR < 30 mL/min).
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Saisho Y, Katsube T, White S, Fukase H, Shimada J. Pharmacokinetics, Safety, and Tolerability of Cefiderocol, a Novel Siderophore Cephalosporin for Gram-Negative Bacteria, in Healthy Subjects. Antimicrob Agents Chemother 2018; 62:e02163-17. [PMID: 29311072 PMCID: PMC5826143 DOI: 10.1128/aac.02163-17] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 12/14/2017] [Indexed: 12/30/2022] Open
Abstract
Cefiderocol is a novel parenteral siderophore cephalosporin that shows potent efficacy against various Gram-negative bacteria, including carbapenem-resistant strains, in vitro and in preclinical models of infection. The aim of the present study was to evaluate the pharmacokinetics (PK), safety, and tolerability of cefiderocol after both single and multiple dosing by intravenous infusion over 60 min in healthy adult subjects. A single-ascending-dose study at doses of 100, 250, 500, 1,000, and 2,000 mg was conducted in 40 healthy Japanese males and females (6 individuals receiving the active drug and 2 individuals receiving a placebo per cohort). A multiple-ascending-dose study at doses of 1,000 (two groups) and 2,000 mg every 8 h (q8h) was conducted in 30 healthy Japanese and Caucasian males (8 individuals receiving the active drug and 2 individuals receiving a placebo per cohort). There were no serious or clinically significant adverse events (AEs) observed in either study. A single subject receiving 1,000 mg cefiderocol q8h was withdrawn due to AEs. Dose-proportional increases in the maximum plasma concentration (Cmax), the area under the concentration-time curve (AUC) from time zero to the time of the last quantifiable concentration after dosing, and the area under the concentration-time curve extrapolated from time zero to infinity were observed across the dose range of 100 to 2,000 mg. The mean plasma half-life of cefiderocol was 1.98 to 2.74 h. Cefiderocol was primarily excreted unchanged in the urine (61.5% to 68.4% of the dose). There was little accumulation of Cmax and AUC by dosing q8h, and the PK of cefiderocol did not change with multiple dosing. This study indicates that single and multiple intravenous doses of cefiderocol at up to 2,000 mg are well tolerated in healthy subjects and exhibit linear PK at doses up to 2,000 mg.
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Affiliation(s)
- Yutaka Saisho
- Medical Affairs Department, Shionogi & Co., Ltd., Osaka, Japan
| | - Takayuki Katsube
- Clinical Research Department, Shionogi & Co., Ltd., Osaka, Japan
| | - Scott White
- Glaxo SmithKline, Philadelphia, Pennsylvania, USA
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Huo W, Xia W, Wu C, Zhu Y, Zhang B, Wan Y, Zhou A, Qian Z, Chen Z, Jiang Y, Liu H, Hu J, Xu B, Xu S, Li Y. Urinary level of triclosan in a population of Chinese pregnant women and its association with birth outcomes. Environ Pollut 2018; 233:872-879. [PMID: 28987566 DOI: 10.1016/j.envpol.2017.08.073] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [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: 09/30/2016] [Revised: 08/17/2017] [Accepted: 08/18/2017] [Indexed: 05/05/2023]
Abstract
Triclosan (TCS) is a suspected endocrine disrupting chemical which is widely used in consumer products as an antibacterial agent. But findings in human studies focusing on the fetal developmental effects of prenatal TCS exposure were rare and inconsistent. This study aimed to determine maternal urinary TCS and investigate its association with birth outcomes. Pregnant women (n = 1006) were randomly selected from the prospective Healthy Baby Cohort (HBC) enrolled in 2014. TCS levels were determined in maternal urine samples collected at delivery and recorded birth outcomes were obtained from the medical records. Multiple linear regressions were applied to evaluate associations of maternal urinary TCS levels with birth outcomes including birth weight, birth length, and gestational age. Logistic regressions were used to evaluate associations with preterm birth, late term birth, and low birth weight. The geometric mean concentrations for TCS and specific gravity (SG) adjusted TCS in maternal urines were 0.73, 0.78 ng/mL, respectively. In the crude model, one ln-unit increase of urinary SG-adjusted TCS concentration was associated with a 0.30-day [95% confidence interval (CI): 0.00, 0.60] increase in gestational age; however, the associations were not statistically significant after adjustment for covariates. No significant associations of SG-adjusted TCS concentrations with birth weight and birth length were observed. Maternal SG-adjusted TCS concentrations were not related to preterm birth, late term birth, and low birth weight (all p > 0.10). Our findings reported a relatively low level of TCS among Chinese pregnant women. With such exposure level, we did not find strong evidence for associations between maternal TCS exposure and birth outcomes. Longitudinal studies concerning about different potential effects of TCS on perinatal health are necessary.
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Affiliation(s)
- Wenqian Huo
- Key Laboratory of Environment and Health (HUST), Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Wei Xia
- Key Laboratory of Environment and Health (HUST), Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Chuansha Wu
- Key Laboratory of Environment and Health (HUST), Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yingshuang Zhu
- Key Laboratory of Environment and Health (HUST), Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Bin Zhang
- Women and Children Medical and Healthcare Center of Wuhan, Wuhan, Hubei, People's Republic of China
| | - Yanjian Wan
- CDC of Yangtze River Administration and Navigational Affairs, General Hospital of the Yangtze River Shipping, Wuhan, People's Republic of China
| | - Aifen Zhou
- Women and Children Medical and Healthcare Center of Wuhan, Wuhan, Hubei, People's Republic of China
| | - Zhenming Qian
- Department of Epidemiology, College for Public Health & Social Justice, Saint Louis University, Saint Louis, Missouri, USA
| | - Zhong Chen
- Women and Children Medical and Healthcare Center of Wuhan, Wuhan, Hubei, People's Republic of China
| | - Yangqian Jiang
- Key Laboratory of Environment and Health (HUST), Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Hongxiu Liu
- Key Laboratory of Environment and Health (HUST), Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Jie Hu
- Key Laboratory of Environment and Health (HUST), Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Bing Xu
- Key Laboratory of Environment and Health (HUST), Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Shunqing Xu
- Key Laboratory of Environment and Health (HUST), Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yuanyuan Li
- Key Laboratory of Environment and Health (HUST), Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.
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Li N, Ho KWK, Ying GG, Deng WJ. Veterinary antibiotics in food, drinking water, and the urine of preschool children in Hong Kong. Environ Int 2017; 108:246-252. [PMID: 28889029 DOI: 10.1016/j.envint.2017.08.014] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [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: 04/19/2017] [Revised: 07/05/2017] [Accepted: 08/22/2017] [Indexed: 06/07/2023]
Abstract
Due to the harmful effects of veterinary antibiotics (VAs) residues in food on children's health, urine samples from 31 preschool and primary school children were analyzed for 13 common VAs. Samples of raw and cooked pork, chicken, fish, milk and drinking water from the children's living areas were also analyzed for residual VAs. Urinalysis revealed one to four target antibiotics in 77.4% of the sample group, with concentrations as high as 0.36ng/mL. Norfloxacin and penicillin had the highest detection rates (48.4% and 35.5%, respectively), with median concentrations of 0.037 and 0.13ng/mL, respectively. The VA burden of children in HK was lower than that in Shanghai. Enrofloxacin, penicillin, and erythromycin were the most detected VAs in raw and cooked food. Only oxytetracycline was detected in terminal tap water, and none were detected in milk. Tetracycline and doxycycline hyclate were detected in organic eggs (up to 7.1ng/g) and regular eggs (up to 6.6ng/g), which were common in children's diets. Traditional Chinese cooking processes did not completely eliminate VAs, and the concentrations of some VAs increased, especially after frying and roasting. The estimated daily intake (EDI) results show that the contribution of dietary intake and that based on the urine concentrations of VAs were far below the acceptable daily intake (ADI). The EDIs from urine were significantly lower than those based on cooked foods. The highest level of achievement percentage (LAP) based on dietary consumption and urine concentrations were 39.7% and 1.79%, respectively, and thus current levels of exposure to VAs would not seem to pose a risk to children's health. However, harmful effects of residual VAs during developmental periods may occur with exposure to much lower doses than those considered harmful to adults, and further investigation of these emerging pollutants is urgently encouraged.
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Affiliation(s)
- Na Li
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, N.T., Hong Kong Special Administrative Region
| | - Keith W K Ho
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, N.T., Hong Kong Special Administrative Region
| | - Guang-Guo Ying
- The Environmental Research Institute, MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China.
| | - Wen-Jing Deng
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, N.T., Hong Kong Special Administrative Region.
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Dulay MT, Zare RN. Polymer-spray mass spectrometric detection and quantitation of hydrophilic compounds and some narcotics. Rapid Commun Mass Spectrom 2017; 31:1651-1658. [PMID: 28792093 PMCID: PMC5591076 DOI: 10.1002/rcm.7952] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 07/31/2017] [Accepted: 08/03/2017] [Indexed: 05/11/2023]
Abstract
RATIONALE High-throughput screening of biofluids is essential in monitoring concentration of a variety of drugs to determine their efficacy and toxicity. Organosiloxane polymers prepared by sol-gel chemistry as sample supports, and electrospray ionization emitters in a single material and as an alternative to paper substrates, is described in this study. METHODS Hydrophobic drugs and hydrophilic streptomycin were analyzed by polymer-spray mass spectrometry with an LTQ-Orbitrap mass spectrometer. Drug samples in urine (1-2 μL) were deposited on an OSX polymer, allowed to dry, then electrosprayed from the polymer tip into the mass spectrometer without sample pretreatment. The OSX polymers, whose polarity and porosity can be controlled, were prepared by sol-gel chemistry where methyl-substituted alkoxysilanes were hydrolyzed in the presence of a pore template and an acid catalyst. RESULTS Five nanograms each of seven narcotic drugs were detected in <1 min (relative standard deviation (RSD) of response <1% for each drug). Calibration curves of cocaine and streptomycin in urine were used to establish the performance of the polymer. For sample 1 (n = 2), the mean recovery for cocaine was 81% with paper and 90% with polymer. Streptomycin is detected with polymer, not with paper; for samples 1 and 2 (n = 3), mean recovery was 97% and 95%, respectively. CONCLUSIONS Organosiloxane polymers achieve more sensitive analysis than paper, allowing for more accurate quantitation of both hydrophobic and hydrophilic drug compounds. The ability to tailor the polymer polarity and porosity allows for the synthesis of a wide range of polymers, and thus opens many possibilities for further development and applications.
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Shokouhi S, Alavi Darazam I, Ayoubian Z, Sajadi MM. Urine Vancomycin Level as a Method for Drug Monitoring in Patients With Normal and Decreased Kidney Function. Iran J Kidney Dis 2017; 11:367-370. [PMID: 29038392] [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] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 01/20/2017] [Indexed: 06/07/2023]
Abstract
INTRODUCTION Therapeutic drug monitoring of vancomycin is an important issue in clinical decision-making and dosage modifying, particularly among patients in critical conditions and decreased kidney function. Urine is typically readily available in hospitalized patients and therapeutic drug monitoring in urine may be a reliable and noninvasive procedure compared to frequent blood sampling. We aimed to determine and validate the diagnostic yield of vancomycin trough level in urine. MATERIALS AND METHODS In a prospective study, 95 patients who were treated with vancomycin for any clinical condition were enrolled in this study. Patients were divided into 2 groups according to their glomerular filtration rate (greater than 80 mL/min/1.73 m2 versus 15 mL/min/1.73 m2 to 80 mL/min/1.73 m2). Vancomycin serum trough levels and simultaneous urine trough levels were detected by high-pressure liquid chromatography. RESULTS The mean serum and urine trough levels of vancomycin were 13.13 ± 1.34 mg/L and 7.79 ± 1.23 mg/L, respectively. The serum and urine trough levels had a positive linear correlation (r = 0.38, P < .001), which was also significant in patients with normal kidney function (r = 0.43, P = .001). The estimated serum concentration was equal to urine vancomycin concentration plus 5.3 mg/L. CONCLUSIONS Urine levels of vancomycin correlate with simultaneous serum levels and may consistently predict serum levels in patients with normal kidney function. Therefore, urine vancomycin monitoring might be used as a noninvasive alternative to blood sampling, particularly in patients with normal kidney function.
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Affiliation(s)
- Shervin Shokouhi
- Infectious Diseases and Tropical Medicine Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Paydas S, Balal M, Kocabas F, Ay N. Acute renal failure secondary to drug-related crystalluria and/or drug reaction with eosinophilia and systemic symptom syndrome in a patient with metastatic lung cancer. Saudi J Kidney Dis Transpl 2017; 28:934-936. [PMID: 28748902] [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: 06/07/2023] Open
Abstract
Drug reaction with eosinophilia and systemic symptoms (DRESS) or drug-induced hypersensitivity is a severe adverse drug-induced reaction. Aromatic anticonvulsants, such as phenytoin, phenobarbital, and carbamazepine, and some drugs, can induce DRESS. Atypical crystalluria can be seen in patients treated with amoxycillin or some drugs and can cause acute renal failure. We describe a 66-year-old man who presented fever and rash and acute renal failure three days after starting amoxycillin. He was also using phenytoin because of cerebral metastatic lung cancer. Investigation revealed eosinophilia and atypical crystalluria. The diagnosis of DRESS syndrome was made, amoxicillin was stopped, and dose of phenytoin was reduced. No systemic corticosteroid therapy was prescribed. Symptoms began to resolve within three to four days. The aim of this paper is to highlight the importance of microscopic examination of urine in a case with acute renal failure and skin lesions to suspect DRESS syndrome.
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Affiliation(s)
- Saime Paydas
- Department of Nephrology, Faculty of Medicine, Cukurova University, Adana, Turkey
| | - Mustafa Balal
- Department of Nephrology, Faculty of Medicine, Cukurova University, Adana, Turkey
| | - Firat Kocabas
- Department of Internal Medicine, Faculty of Medicine, Cukurova University, Adana, Turkey
| | - Nurettin Ay
- Department of Internal Medicine, Faculty of Medicine, Cukurova University, Adana, Turkey
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Wang X, Ouyang F, Feng L, Wang X, Liu Z, Zhang J. Maternal Urinary Triclosan Concentration in Relation to Maternal and Neonatal Thyroid Hormone Levels: A Prospective Study. Environ Health Perspect 2017; 125:067017. [PMID: 28669941 PMCID: PMC5743753 DOI: 10.1289/ehp500] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 10/05/2016] [Accepted: 11/07/2016] [Indexed: 05/21/2023]
Abstract
BACKGROUND Triclosan (TCS) is a synthetic antibacterial chemical widely used in personal care products. TCS exposure has been associated with decreased thyroid hormone levels in animals, but human studies are scarce and controversial. OBJECTIVE We evaluated the association between maternal TCS exposure and thyroid hormone levels of mothers and newborns. METHODS TCS was measured by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) in urine samples collected during gestational weeks 38.8±1.1 from 398 pregnant women in a prospective birth cohort enrolled in 2012-2013 in Shanghai, China. Maternal serum levels of free thyroxine (FT4), thyroid-stimulating hormone (TSH), and thyroid peroxidase antibody (TPOAb) were obtained from medical records. Cord blood levels of free triiodothyronine (FT3), FT4, TSH, and TPOAb were measured. Multiple linear and logistic regression models were used to examine the relationship between maternal urinary TCS and thyroid hormone levels. RESULTS TCS was detectable (≥0.1 ng/mL) in 98.24% of maternal urine samples with tertile of urinary TCS levels: low (>0.1-2.75 μg/g.Cr), medium (2.75–9.78 μg/g.Cr), and high (9.78–427.38 μg/g.Cr). With adjustment for potential confounders, cord blood log(FT3)pmol/L concentration was 0.11 lower in newborns of mothers with medium and high urinary TCS levels compared with those with low levels. At third trimester, the high TCS concentration was associated with 0.03 [95% confidence interval (CI) −0.08, −0.02] lower maternal serum log(FT4)pmol/L, whereas the medium TCS concentration was associated with 0.15 (95% CI: −0.28, −0.03) lower serum log(TSH)mIU/L with adjustment for covariates. CONCLUSIONS Our results suggest significant inverse associations between maternal urinary TCS and cord blood FT3 as well as maternal blood FT4 concentrations at third trimester. https://doi.org/10.1289/EHP500.
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Affiliation(s)
- Xu Wang
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fengxiu Ouyang
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liping Feng
- Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Xia Wang
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhiwei Liu
- Department of Neonatology, International Peace Maternal and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Zhang
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Vaara M, Vaara T, Tyrrell JM. Structure-activity studies on polymyxin derivatives carrying three positive charges only reveal a new class of compounds with strong antibacterial activity. Peptides 2017; 91:8-12. [PMID: 28300674 DOI: 10.1016/j.peptides.2017.03.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 03/06/2017] [Accepted: 03/07/2017] [Indexed: 11/23/2022]
Abstract
Recent years have brought in an increased interest to develop improved polymyxins. The currently used polymyxins, i.e. polymyxin B and colistin (polymyxin E) are pentacationic lipopeptides that possess a cyclic heptapeptide part with three positive charges, a linear "panhandle" part with two positive charges, and a fatty acyl tail. Unfortunately, their clinical use is shadowed by their notable nephrotoxicity. We have previously developed a polymyxin derivative NAB739 which lacks the positive charges in the linear part. This derivative is better tolerated than polymyxin B in cynomolgus monkeys and is, in contrast to polymyxin B, excreted into urine in monkeys and rats. Here we have conducted further structure-activity relationship (SAR) studies on 17 derivatives with three positive charges only. We discovered a remarkably antibacterial class, as exemplified by NAB815, that carries two positive charges only in the cyclic part.
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Affiliation(s)
- Martti Vaara
- Northern Antibiotics Ltd., FI-02150 Espoo, Finland; Division of Clinical Microbiology, Helsinki University Hospital, FI-00029 Helsinki, Finland; Department of Bacteriology and Immunology, Helsinki University Medical School, FI-00014 Helsinki, Finland.
| | - Timo Vaara
- Northern Antibiotics Ltd., FI-02150 Espoo, Finland
| | - Jonathan M Tyrrell
- Department of Medical Microbiology & Infectious Disease, Institute of Infection & Immunity, UGW Main Building, Heath Park Campus, Cardiff, Wales, UK
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Shelver WL, Chakrabarty S, Smith DJ. Comparison of Lateral Flow Assay, Kidney Inhibition Swab, and Liquid Chromatography-Tandem Mass Spectrometry for the Detection of Penicillin G Residues in Sow Urine. J Agric Food Chem 2017; 65:1778-1783. [PMID: 28205436 DOI: 10.1021/acs.jafc.6b05049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Sows (n = 126) were administered penicillin G; urine, collected at slaughter, was screened by kidney inhibition swab (KIS; 4 h testing time) and then stored at -80 °C (∼1200 days) until analysis by lateral flow assay (LF, ∼5 min testing time) and tandem quadrupole LC-MS/MS (TQ) analysis. The stability of penicillin in urine during storage was verified using TQ analyses. Quantitative results were well-correlated (R2 = 0.98) with only a ∼10% decrease in penicillin concentration during the 3-year storage period. KIS retesting of stored samples returned results consistent with the original analyses. Lateral flow assay results were highly correlated with the KIS and TQ results. A KIS positive sample, which was not confirmed by TQ or LF, was assayed by Triple-TOF LC-MS to determine the cause of the apparent false positive. This study suggests LF can be used to quickly and efficiently screen for penicillin G residues before slaughter.
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Affiliation(s)
- Weilin L Shelver
- Agricultural Research Service, Biosciences Research Laboratory, United States Department of Agriculture , 1605 Albrecht Boulevard, Fargo, North Dakota 58102-2765, United States
| | - Shubhashis Chakrabarty
- Agricultural Research Service, Biosciences Research Laboratory, United States Department of Agriculture , 1605 Albrecht Boulevard, Fargo, North Dakota 58102-2765, United States
| | - David J Smith
- Agricultural Research Service, Biosciences Research Laboratory, United States Department of Agriculture , 1605 Albrecht Boulevard, Fargo, North Dakota 58102-2765, United States
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Srinivas NR. Interspecies scaling of excretory amounts using allometry - retrospective analysis with rifapentine, aztreonam, carumonam, pefloxacin, miloxacin, trovafloxacin, doripenem, imipenem, cefozopran, ceftazidime, linezolid for urinary excretion and rifapentine, cabotegravir, and dolutegravir for fecal excretion. Xenobiotica 2016; 46:784-92. [PMID: 26711252 DOI: 10.3109/00498254.2015.1121554] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 11/11/2015] [Accepted: 11/15/2015] [Indexed: 11/13/2022]
Abstract
1. Interspecies allometry scaling for prediction of human excretory amounts in urine or feces was performed for numerous antibacterials. Antibacterials used for urinary scaling were: rifapentine, pefloxacin, trovafloxacin (Gr1/low; <10%); miloxacin, linezolid, PNU-142300 (Gr2/medium; 10-40%); aztreonam, carumonam, cefozopran, doripenem, imipenem, and ceftazidime (Gr3/high; >50%). Rifapentine, cabotegravir, and dolutegravir was used for fecal scaling (high; >50%). 2. The employment of allometry equation: Y = aW(b) enabled scaling of urine/fecal amounts from animal species. Corresponding predicted amounts were converted into % recovery by considering the respective human dose. Comparison of predicted/observed values enabled fold difference and error calculations (mean absolute error [MAE] and root mean square error [RMSE]). Comparisons were made for urinary/fecal data; and qualitative assessment was made amongst Gr1/Gr2/Gr3 for urine. 3. Average correlation coefficient for the allometry scaling was >0.995. Excretory amount predictions were largely within 0.75- to 1.5-fold differences. Average MAE and RMSE were within ±22% and 23%, respectively. Although robust predictions were achieved for higher urinary/fecal excretion (>50%), interspecies scaling was applicable for low/medium excretory drugs. 4. Based on the data, interspecies scaling of urine or fecal excretory amounts may be potentially used as a tool to understand the significance of either urinary or fecal routes of elimination in humans in early development.
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Affiliation(s)
- Nuggehally R Srinivas
- a Department of Integrated Drug Development , Suramus Bio , Bangalore , Karnataka , India
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Jaatinen ST, Palmroth MRT, Rintala JA, Tuhkanen TA. The effect of urine storage on antiviral and antibiotic compounds in the liquid phase of source-separated urine. Environ Technol 2016; 37:2189-98. [PMID: 26804243 DOI: 10.1080/09593330.2016.1144799] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 07/23/2015] [Accepted: 01/16/2016] [Indexed: 05/21/2023]
Abstract
The behaviour of pharmaceuticals related to the human immunodeficiency virus treatment was studied in the liquid phase of source-separated urine during six-month storage at 20°C. Six months is the recommended time for hygienization and use of urine as fertilizer. Compounds were spiked in urine as concentrations calculated to appear in urine. Assays were performed with separate compounds and as therapeutic groups of antivirals, antibiotics and anti-tuberculotics. In addition, urine was amended either with faeces or urease inhibitor. The pharmaceutical concentrations were monitored from filtered samples with solid phase extraction and liquid chromatography. The concentration reductions of the studied compounds as such or with amendments ranged from less than 1% to more than 99% after six-month storage. The reductions without amendments were 41.9-99% for anti-tuberculotics; <52% for antivirals (except with 3TC 75.6%) and <50% for antibiotics. In assays with amendments, the reductions were all <50%. Faeces amendment resulted in similar or lower reduction than without it even though bacterial activity should have increased. The urease inhibitor prevented ureolysis and pH rise but did not affect pharmaceutical removal. In conclusion, removal during storage might not be enough to reduce risks associated with the studied pharmaceuticals, in which case other feasible treatment practises or urine utilization means should be considered.
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Affiliation(s)
- Sanna T Jaatinen
- a Department of Chemistry and Bioengineering , Tampere University of Technology , Tampere , Finland
| | - Marja R T Palmroth
- a Department of Chemistry and Bioengineering , Tampere University of Technology , Tampere , Finland
| | - Jukka A Rintala
- a Department of Chemistry and Bioengineering , Tampere University of Technology , Tampere , Finland
| | - Tuula A Tuhkanen
- a Department of Chemistry and Bioengineering , Tampere University of Technology , Tampere , Finland
- b Department of Biology and Environmental Science , University of Jyväskylä , Jyväskylä , Finland
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Staubes BA, Metzger NL, Walker SD, Peasah SK. Evaluation of a Once/Day Tobramycin Regimen to Achieve Target Concentrations in Adult Patients with Cystic Fibrosis. Pharmacotherapy 2016; 36:623-30. [PMID: 27138730 DOI: 10.1002/phar.1762] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
STUDY OBJECTIVE To evaluate the success of an initial tobramycin dosing regimen to achieve target peak and trough concentrations in adult patients with pulmonary exacerbations of cystic fibrosis (CF). DESIGN Retrospective single-center medical record review. SETTING Large tertiary care academic medical center. PATIENTS A total of 186 patient encounters where 112 patients with CF were treated for acute pulmonary exacerbations with 10 mg/kg/day of tobramycin between January 1, 2009, and December 5, 2014. MEASUREMENTS AND MAIN RESULTS Baseline demographics, clinical characteristics, tobramycin data, and pharmacokinetic variables were collected. The primary outcome evaluated the success of the initial tobramycin dosing regimen in attaining the target peak concentration. Secondary end points were achievement of the target trough concentration, achievement of combined peak and trough targets, and incidence of nephrotoxicity. Bivariate and multivariate analyses were performed to evaluate factors associated with achieving target concentrations. Of the 186 patient encounters, 41% achieved the target peak with the first dosing regimen, 62% achieved a target trough, and 23% achieved the target peak and trough. Nephrotoxicity occurred in 10% of patient encounters. A body mass index (BMI) of 18.5-24.9 kg/m(2) was associated with higher odds of meeting the target peak compared with a BMI lower than 18.5 kg/m(2) (odds ratio [OR] 24.5; 95% confidence interval [CI] 5.2-117.2). Conversely, a BMI of 18.5-24.9 kg/m(2) was associated with lower odds of attaining the target trough compared with a BMI lower than 18.5 kg/m(2) (OR 0.16; 95% CI 0.05-0.56). Higher volume of distribution and elimination rate constants (Kel ) were associated with significantly lower odds of achieving the target peak. In addition, higher Kel values were associated with significantly higher odds of achieving the target trough. CONCLUSIONS The current initial tobramycin regimen did not achieve target serum tobramycin concentrations reliably. Optimization of the initial CF tobramycin dosing regimen is warranted.
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Affiliation(s)
- Britta A Staubes
- Department of Pharmacy, Ochsner Medical Center, New Orleans, Louisiana
| | - Nicole L Metzger
- Department of Pharmacy, Mercer University College of Pharmacy, Atlanta, Georgia
- Department of Pharmaceutical Services, Emory University Hospital, Atlanta, Georgia
| | - Seth D Walker
- Division of Pulmonology, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, Emory University, Atlanta, Georgia
| | - Samuel K Peasah
- Department of Pharmacy, Mercer University College of Pharmacy, Atlanta, Georgia
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Qiao M, Jiang J, Yang J, Liu S, Liu Z, Hu X. A sensitive "turn-on" fluorescent assay for quantification of ceftriaxone based on L-tryptophan-Pd(II) complex fluorophore. Spectrochim Acta A Mol Biomol Spectrosc 2016; 161:95-100. [PMID: 26963730 DOI: 10.1016/j.saa.2016.02.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 07/16/2015] [Revised: 02/20/2016] [Accepted: 02/23/2016] [Indexed: 06/05/2023]
Abstract
Based on L-tryptophan-Pd(II) system, a sensitive and selective fluorimetric assay for the quantification of ceftriaxone (CTRX) had been developed. The experimental results showed that in pH 4.0 Britton-Robinson (BR) buffer medium, the fluorescence of L-tryptophan (L-Trp) (λex/λem=276 nm/352 nm) could be efficiently quenched by Pd(II). When CTRX was added to the mixed solution of the L-tryptophan and Pd(II), the fluorescence of L-Trp recovered. The reaction mechanism and the reasons for the fluorescence recovery were also discussed. Pd(II) reacted with L-Trp to form a 1:1 chelate complex, and then, after CTRX was added in L-Try-Pd(II) system, the ligand exchange reaction occurred between L-Trp and CTRX, which resulted in the fluorescence recovery. Under the optimized experimental conditions, the recovered fluorescence intensities at 352 nm showed excellent linear relationship with the concentration of CTRX over the range of 6.0 × 10(-8)-2.4 × 10(-)(6) mol L(-1) (0.040-1.59 μg mL(-1)). The correlation coefficient (R) was 0.9997 and the detection limit was 1.8 × 10(-8) mol L(-1) (11.9 ng mL(-1)). Furthermore, the assay had been applied to determine trace amount of CTRX human urine samples with satisfactory results.
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Affiliation(s)
- Man Qiao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Junze Jiang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Jidong Yang
- College of Chemical and Environmental Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China
| | - Shaopu Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Zhongfang Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xiaoli Hu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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Qiu J, Zhao T, Liu Q, He J, He D, Wu G, Li Y, Jiang C, Xu Z. Residual veterinary antibiotics in pig excreta after oral administration of sulfonamides. Environ Geochem Health 2016; 38:549-556. [PMID: 26164467 DOI: 10.1007/s10653-015-9740-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 12/30/2014] [Accepted: 06/26/2015] [Indexed: 06/04/2023]
Abstract
Sulfonamides (SAs) are applied widely as feed additives in the farming of livestock and poultry. It can lead to the excretion of large amounts of SAs in manure and result in persistent environmental pollution. We evaluated the fate of four SAs, sulfamerazine (SM1), sulfachloropyridazine (SCP), sulfadimoxine (SDM') and sulfaquinoxaline (SQ), from oral administration to excretion in urine and feces in pigs. The four SAs were added to homemade feed to make them reach the required concentration gradient, which were 0, 50 and 100 mg/kg (low, normal and high concentrations, respectively). In different treatments, excretions of the four SAs were 35.68-86.88 %. With regard to total excretion, the order was SQ > SCP > SM1 > SDM' for all treatments. The concentration of SAs in the feed had significant effects on the amount of the four SAs excreted every day. The concentration of SAs in feces and in the urine for different treatments was 15.03-26.55 and 14.54-69.22 %, respectively. In each treatment, excretions of SCP, SDM' and SQ in feces were lower than that in urine. The four SAs remained longer in urine than in feces. Excretions in urine and feces were lower if SAs were administered orally rather than by injection.
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Affiliation(s)
- Jinrong Qiu
- South China Institute of Environmental Sciences, Ministry of Environment Protection of PRC, Guangzhou, 510655, China
| | - Tao Zhao
- South China Institute of Environmental Sciences, Ministry of Environment Protection of PRC, Guangzhou, 510655, China
- College of Resource and Environment, South China Agriculture University, Guangzhou, 510642, China
| | - Qingyun Liu
- South China Institute of Environmental Sciences, Ministry of Environment Protection of PRC, Guangzhou, 510655, China
- College of Resource and Environment, Hunan Agriculture University, Changsha, 410128, China
| | - Jinhua He
- Scientific Research Academy of Guangxi Environmental Protection, Nanning, 530022, China
| | - Dechun He
- South China Institute of Environmental Sciences, Ministry of Environment Protection of PRC, Guangzhou, 510655, China
| | - Genyi Wu
- South China Institute of Environmental Sciences, Ministry of Environment Protection of PRC, Guangzhou, 510655, China
| | - Yongtao Li
- College of Resource and Environment, South China Agriculture University, Guangzhou, 510642, China
| | - Chengai Jiang
- College of Resource and Environment, South China Agriculture University, Guangzhou, 510642, China
| | - Zhencheng Xu
- South China Institute of Environmental Sciences, Ministry of Environment Protection of PRC, Guangzhou, 510655, China.
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Wang H, Wang N, Wang B, Fang H, Fu C, Tang C, Jiang F, Zhou Y, He G, Zhao Q, Chen Y, Jiang Q. Antibiotics detected in urines and adipogenesis in school children. Environ Int 2016; 89-90:204-211. [PMID: 26882350 DOI: 10.1016/j.envint.2016.02.005] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [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: 11/10/2015] [Revised: 12/15/2015] [Accepted: 02/03/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Although antibiotic use during early life has been demonstrated to be related to the altered adipogenesis in later life, limited data are available for the effect of antibiotic exposure in school children on adiposity from various sources, including from the use or contaminated food or drinking water. OBJECTIVE To explore the association between the internal exposure of antibiotics from various sources and adipogenesis in school children using the biomonitoring of urinary antibiotics. METHODS After 586 school children aged 8-11years were selected from Shanghai in 2013, total urinary concentrations (free and conjugated) of 21 common antibiotics from six categories (macrolides, β-lactams, tetracyclines, fluoroquinolones, sulfonamides, and phenicols), including five human antibiotics (HAs), two antibiotics preferred as HA, four veterinary antibiotics (VAs), and ten antibiotics preferred as VA, were measured by ultra-performance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry. Creatinine-corrected urinary concentrations of antibiotics were used to assess their exposure. Overweight or obesity was determined by the body mass index or waist circumference-based criteria deriving from national data. RESULTS All 21 antibiotics were found in urines with the overall detection frequency of 79.6%. The multinomial logistic regression analyses showed the significant associations of overweight and obesity with the exposure to VAs and antibiotics preferred as VA, but not with HAs or antibiotics preferred as HA. After adjusted for a number of obesity-relevant variables, the odds ratios (95% confidence interval) of BMI-based obesity risk of tertiles 2 and 3 of urinary concentrations relative to tertile 1 were respectively 2.54 (1.27, 5.07) and 2.92 (1.45, 5.87) for florfenicol, 0.57 (0.12, 2.63) and 3.63 (1.41, 9.32) for trimethoprim, and 3.00 (1.56, 5.76) and 1.99 (0.99, 4.01) for sum of veterinary antibiotics. Similar results were found when the outcome used WC-based obesity risk. The associations were sex related and mainly observed in boys. CONCLUSIONS Some types of antibiotic exposure, which were mainly from food or drinking water, were associated with an increased risk of obesity in school children. Due to the cross-sectional design, more longitudinal and experimental studies are warranted to further test these findings.
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Affiliation(s)
- Hexing Wang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Na Wang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Bin Wang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Hong Fang
- Minhang District Center for Disease Control and Prevention, Minhang District, Shanghai 201101, China
| | - Chaowei Fu
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Chuanxi Tang
- Changning District Center for Disease Control and Prevention, Changning District, Shanghai 200051, China
| | - Feng Jiang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Ying Zhou
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Gengsheng He
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Qi Zhao
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China.
| | - Yue Chen
- School of Epidemiology, Public Health and Preventive Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H8M5, Canada
| | - Qingwu Jiang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
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El-Kosasy AM, Abdel-Aziz O, Magdy N, El Zahar NM. Spectrophotometric and chemometric methods for determination of imipenem, ciprofloxacin hydrochloride, dexamethasone sodium phosphate, paracetamol and cilastatin sodium in human urine. Spectrochim Acta A Mol Biomol Spectrosc 2016; 157:26-33. [PMID: 26709018 DOI: 10.1016/j.saa.2015.12.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [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: 10/19/2015] [Revised: 11/30/2015] [Accepted: 12/11/2015] [Indexed: 06/05/2023]
Abstract
New accurate, sensitive and selective spectrophotometric and chemometric methods were developed and subsequently validated for determination of Imipenem (IMP), ciprofloxacin hydrochloride (CIPRO), dexamethasone sodium phosphate (DEX), paracetamol (PAR) and cilastatin sodium (CIL) in human urine. These methods include a new derivative ratio method, namely extended derivative ratio (EDR), principal component regression (PCR) and partial least-squares (PLS) methods. A novel EDR method was developed for the determination of these drugs, where each component in the mixture was determined by using a mixture of the other four components as divisor. Peak amplitudes were recorded at 293.0 nm, 284.0 nm, 276.0 nm, 257.0 nm and 221.0 nm within linear concentration ranges 3.00-45.00, 1.00-15.00, 4.00-40.00, 1.50-25.00 and 4.00-50.00 μg mL(-1) for IMP, CIPRO, DEX, PAR and CIL, respectively. PCR and PLS-2 models were established for simultaneous determination of the studied drugs in the range of 3.00-15.00, 1.00-13.00, 4.00-12.00, 1.50-9.50, and 4.00-12.00 μg mL(-1) for IMP, CIPRO, DEX, PAR and CIL, respectively, by using eighteen mixtures as calibration set and seven mixtures as validation set. The suggested methods were validated according to the International Conference of Harmonization (ICH) guidelines and the results revealed that they were accurate, precise and reproducible. The obtained results were statistically compared with those of the published methods and there was no significant difference.
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Affiliation(s)
- A M El-Kosasy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abassia, Cairo 11566, Egypt
| | - Omar Abdel-Aziz
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abassia, Cairo 11566, Egypt
| | - N Magdy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abassia, Cairo 11566, Egypt
| | - N M El Zahar
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abassia, Cairo 11566, Egypt.
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Wang H, Wang N, Wang B, Zhao Q, Fang H, Fu C, Tang C, Jiang F, Zhou Y, Chen Y, Jiang Q. Antibiotics in Drinking Water in Shanghai and Their Contribution to Antibiotic Exposure of School Children. Environ Sci Technol 2016; 50:2692-2699. [PMID: 26849047 DOI: 10.1021/acs.est.5b05749] [Citation(s) in RCA: 135] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A variety of antibiotics have been found in aquatic environments, but antibiotics in drinking water and their contribution to antibiotic exposure in human are not well-explored. For this, representative drinking water samples and 530 urine samples from schoolchildren were selected in Shanghai, and 21 common antibiotics (five macrolides, two β-lactams, three tetracyclines, four fluoquinolones, four sulfonamides, and three phenicols) were measured in water samples and urines by isotope dilution two-dimensional ultraperformance liquid chromatography coupled with high-resolution quadrupole time-of-flight mass spectrometry. Drinking water included 46 terminal tap water samples from different spots in the distribution system of the city, 45 bottled water samples from 14 common brands, and eight barreled water samples of different brands. Of 21 antibiotics, only florfenicol and thiamphenicol were found in tap water, with the median concentrations of 0.0089 ng/mL and 0.0064 ng/mL, respectively; only florfenicol was found in three bottled water samples from a same brand, with the concentrations ranging from 0.00060 to 0.0010 ng/mL; no antibiotics were found in barreled water. In contrast, besides florfenicol and thiamphenicol, an additional 17 antibiotics were detected in urine samples, and the total daily exposure doses and detection frequencies of florfenicol and thiamphenicol based on urine samples were significantly and substantially higher than their predicted daily exposure doses and detection frequencies from drinking water by Monte Carlo Simulation. These data indicated that drinking water was contaminated by some antibiotics in Shanghai, but played a limited role in antibiotic exposure of children.
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Affiliation(s)
- Hexing Wang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
| | - Na Wang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
| | - Bin Wang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
| | - Qi Zhao
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
| | - Hong Fang
- Minhang District Center for Disease Control and Prevention , Minhang District, Shanghai 201101, China
| | - Chaowei Fu
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
| | - Chuanxi Tang
- Changning District Center for Disease Control and Prevention , Changning District, Shanghai 200051, China
| | - Feng Jiang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
| | - Ying Zhou
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
| | - Yue Chen
- School of Epidemiology, Public Health, and Preventive Medicine, Faculty of Medicine, University of Ottawa , Ottawa, Ontario K1H8M5, Canada
| | - Qingwu Jiang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
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Bischel HN, Özel Duygan BD, Strande L, McArdell CS, Udert KM, Kohn T. Pathogens and pharmaceuticals in source-separated urine in eThekwini, South Africa. Water Res 2015; 85:57-65. [PMID: 26302215 DOI: 10.1016/j.watres.2015.08.022] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [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: 04/29/2015] [Revised: 08/06/2015] [Accepted: 08/11/2015] [Indexed: 05/12/2023]
Abstract
In eThekwini, South Africa, the production of agricultural fertilizers from human urine collected from urine-diverting dry toilets is being evaluated at a municipality scale as a way to help finance a decentralized, dry sanitation system. The present study aimed to assess a range of human and environmental health hazards in source-separated urine, which was presumed to be contaminated with feces, by evaluating the presence of human pathogens, pharmaceuticals, and an antibiotic resistance gene. Composite urine samples from households enrolled in a urine collection trial were obtained from urine storage tanks installed in three regions of eThekwini. Polymerase chain reaction (PCR) assays targeted 9 viral and 10 bacterial human pathogens transmitted by the fecal-oral route. The most frequently detected viral pathogens were JC polyomavirus, rotavirus, and human adenovirus in 100%, 34% and 31% of samples, respectively. Aeromonas spp. and Shigella spp. were frequently detected gram negative bacteria, in 94% and 61% of samples, respectively. The gram positive bacterium, Clostridium perfringens, which is known to survive for extended times in urine, was found in 72% of samples. A screening of 41 trace organic compounds in the urine facilitated selection of 12 priority pharmaceuticals for further evaluation. The antibiotics sulfamethoxazole and trimethoprim, which are frequently prescribed as prophylaxis for HIV-positive patients, were detected in 95% and 85% of samples, reaching maximum concentrations of 6800 μg/L and 1280 μg/L, respectively. The antiretroviral drug emtricitabine was also detected in 40% of urine samples. A sulfonamide antibiotic resistance gene (sul1) was detected in 100% of urine samples. By coupling analysis of pathogens and pharmaceuticals in geographically dispersed samples in eThekwini, this study reveals a range of human and environmental health hazards in urine intended for fertilizer production. Collection of urine offers the benefit of sequestering contaminants from environmental release and allows for targeted treatment of potential health hazards prior to agricultural application. The efficacy of pathogen and pharmaceutical inactivation, transformation or removal during urine nutrient recovery processes is thus briefly reviewed.
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Affiliation(s)
- Heather N Bischel
- Laboratory of Environmental Chemistry, School of Architecture, Civil and Environmental Engineering (ENAC), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
| | - Birge D Özel Duygan
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Linda Strande
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Christa S McArdell
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Kai M Udert
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Tamar Kohn
- Laboratory of Environmental Chemistry, School of Architecture, Civil and Environmental Engineering (ENAC), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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Adgent MA, Rogan WJ. Triclosan and prescription antibiotic exposures and enterolactone production in adults. Environ Res 2015; 142:66-71. [PMID: 26114916 PMCID: PMC4609256 DOI: 10.1016/j.envres.2015.06.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 06/10/2015] [Accepted: 06/11/2015] [Indexed: 05/16/2023]
Abstract
BACKGROUND The gut microbiome plays an important role in the development of disease. The composition of the microbiome is influenced by factors such as mode of delivery at birth, diet and antibiotic use, yet the influence of environmental chemical exposures is largely unknown. The antimicrobial compound triclosan, found in many personal care products and widely detected in human urine, is an environmental exposure for which systemic microbiotic effects may be of particular interest. To investigate the relationship between triclosan and gut microflora, we assessed the association between triclosan and enterolactone, an intestinal metabolite that is produced via bacterial transformation of dietary lignans (seeds, nuts) and has known susceptibility to oral antibiotics. METHODS We examined urinary triclosan and enterolactone for 2005-2008 U.S. National Health and Nutrition Examination Survey subjects, aged ≥20 years (n=3041). We also examined the association between prescription antibiotic use and enterolactone to confirm its susceptibility to changes in bacterial composition of the body. Associations between natural log-transformed enterolactone and (1) detected vs. not detected (<2.3 ng/mL) triclosan, (2) triclosan quintiles (Q1-Q5), and (3) any vs. no antibiotics were estimated with multiple linear regression, adjusting for sex, age, race, body mass index, poverty income ratio, education, fiber intake, bowel movement frequency, cotinine and creatinine (n=2441). RESULTS Triclosan was detected in 80% of subjects (range: <2.3-3620 ng/mL), while enterolactone was detected in >99% of subjects (range: <0.1-122,000 ng/mL). After adjustment, enterolactone was not associated with triclosan (detect vs. non-detect: β= 0.07 (95% CI: -0.15, 0.30); Q5 (≥104.5 ng/mL) vs. Q1 (none): β= 0.06 (95% CI: -0.21, 0.34)). In sex-stratified analyses, triclosan was associated with higher enterolactone in women (detect vs. non-detect: β= 0.31 (95% CI: -0.07, 0.70), but not men β= -0.18 (95% CI: -0.47, 0.11). However, any antibiotic use (n=112), as compared to no antibiotic use, was associated with significantly lower enterolactone (β=-0.78 (95%CI: -1.22, -0.36)), with no sex-specific effects. This association was driven by inverse associations with the following antibiotic classes: macrolide derivatives, quinolones, sulfonamides, and lincomycin derivatives. CONCLUSIONS Antibiotics, but not triclosan, are negatively associated with urinary enterolactone. Antibiotics may reduce enterolactone by killing certain gut bacteria. At levels detected in the U.S., triclosan does not appear to be acting similarly, despite broad antimicrobial properties. Additional study of determinants of triclosan exposure and enterolactone production may be needed to better understand positive associations among women.
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Affiliation(s)
- Margaret A Adgent
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, P.O. Box 12233 Research Triangle Park, NC 27709, USA.
| | - Walter J Rogan
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, P.O. Box 12233 Research Triangle Park, NC 27709, USA
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Yang L, Sunzel M, Xu P, Edeki T, Wilson D, Li J, Li H. Evaluation of the pharmacokinetics and safety of single and multiple ceftaroline fosamil infusions in healthy Chinese and Western subjects. Int J Clin Pharmacol Ther 2015; 53:681-91. [PMID: 26152131 DOI: 10.5414/cp202343] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2015] [Indexed: 12/16/2023] Open
Abstract
OBJECTIVES Two phase I studies in healthy Chinese (NCT01458743) and Western (NCT01612507) subjects evaluated the pharmacokinetics (PK) and safety of single and multiple ceftaroline fosamil 600 mg infusions administered every 8 or 12 hours (q8h or q12h). METHODS Each study enrolled subjects sequentially into 1 of 2 cohorts (cohort 1: 60-minute infusions; cohort 2: 120-minute infusions). All subjects in the Chinese (n = 26) study received open label ceftaroline fosamil; in the Western study, subjects (n = 41) in each cohort were randomized 3 : 1 to ceftaroline fosamil or placebo infusions. Single infusions were administered on days 1 and 8. On days 2 - 7 (3 - 7 for Chinese study, cohort 1) subjects received q12h or q8h infusions. Plasma and urine were collected on days 1 and 8 for PK analysis. RESULTS Ceftaroline PK was linear and time-independent following single and multiple doses of ceftaroline fosamil. The magnitude and timing of peak plasma concentrations of ceftaroline (active metabolite), ceftaroline fosamil (prodrug), and ceftaroline M-1 (inactive metabolite) varied according to the ceftaroline fosamil dosing schedule (q12h or q8h) and infusion duration (60 minutes or 120 minutes), but overall plasma ceftaroline exposures within the respective dosing intervals were broadly similar across cohorts. The most frequent adverse events were rash/drug eruption, most of which were of mild-moderate intensity and considered related to treatment. CONCLUSIONS Ceftaroline PK was broadly similar in healthy Chinese and Western subjects receiving equivalent dose regimens. The tolerability profile of ceftaroline fosamil in Chinese and Western subjects was consistent with previous clinical trials.
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Ahmed HM, Ebeid WB. The use of laser-induced fluorescence or ultraviolet detectors for sensitive and selective analysis of tobramycin or erythropoietin in complex samples. Spectrochim Acta A Mol Biomol Spectrosc 2015; 143:12-19. [PMID: 25706680 DOI: 10.1016/j.saa.2015.02.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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: 10/22/2014] [Revised: 01/29/2015] [Accepted: 02/04/2015] [Indexed: 06/04/2023]
Abstract
Complex samples analysis is a challenge in pharmaceutical and biopharmaceutical analysis. In this work, tobramycin (TOB) analysis in human urine samples and recombinant human erythropoietin (rhEPO) analysis in the presence of similar protein were selected as representative examples of such samples analysis. Assays of TOB in urine samples are difficult because of poor detectability. Therefore laser induced fluorescence detector (LIF) was combined with a separation technique, micellar electrokinetic chromatography (MEKC), to determine TOB through derivatization with fluorescein isothiocyanate (FITC). Borate was used as background electrolyte (BGE) with negative-charged mixed micelles as additive. The method was successively applied to urine samples. The LOD and LOQ for Tobramycin in urine were 90 and 200ng/ml respectively and recovery was >98% (n=5). All urine samples were analyzed by direct injection without sample pre-treatment. Another use of hyphenated analytical technique, capillary zone electrophoresis (CZE) connected to ultraviolet (UV) detector was also used for sensitive analysis of rhEPO at low levels (2000IU) in the presence of large amount of human serum albumin (HSA). Analysis of rhEPO was achieved by the use of the electrokinetic injection (EI) with discontinuous buffers. Phosphate buffer was used as BGE with metal ions as additive. The proposed method can be used for the estimation of large number of quality control rhEPO samples in a short period.
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Affiliation(s)
- Hytham M Ahmed
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt.
| | - Wael B Ebeid
- SEDICO Pharmaceuticals, Merck & Co External Partner, 6th of October City, Cairo, Egypt
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Wang H, Wang B, Zhao Q, Zhao Y, Fu C, Feng X, Wang N, Su M, Tang C, Jiang F, Zhou Y, Chen Y, Jiang Q. Antibiotic body burden of Chinese school children: a multisite biomonitoring-based study. Environ Sci Technol 2015; 49:5070-9. [PMID: 25830781 DOI: 10.1021/es5059428] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
To explore the antibiotic body burden of Chinese school children, total urinary concentrations (free and conjugated) of 18 representative antibiotics (5 macrolides, 2 β-lactams, 3 tetracyclines, 4 quinolones, and 4 sulfonamides) were measured by ultraperformance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry among 1064 school students recruited from 3 economically and geographically distinct areas in east China in 2013. All 18 antibiotics were detected in urine samples with the detection frequencies ranging from 0.4 to 19.6%. The antibiotics were detected in 58.3% of urine samples overall, and this detection frequency reached at 74.4% in one study site. Of them, 47.8% of the urine samples had a sum of mass concentration of all antibiotics between 0.1 (minimum) and 20.0 ng/mL, and 8 antibiotics had their concentrations of above 1000 ng/mL in some urine samples. Three veterinary antibiotics, 4 human antibiotics, and 11 human/veterinary antibiotics were found overall in 6.3, 19.9, and 49.4% of urine samples, respectively. The detection frequencies and concentration levels of antibiotics in urine samples differed by study areas. Concerning mixed exposures, a total of 137 combinations of antibiotics and 20 combinations of antibiotic categories were found overall. Two or more antibiotics or categories were concurrently detected in more than 20% of urine samples. On the basis of a usage analysis, contaminated food or environment might be relevant exposure sources for tetracyclines, quinolones, and sulfonamides.
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Affiliation(s)
- Hexing Wang
- †Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Bin Wang
- †Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Qi Zhao
- †Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Yanping Zhao
- ‡Minhang District Center for Disease Control and Prevention, Minhang District, Shanghai 201101, China
| | - Chaowei Fu
- †Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Xin Feng
- §Haimen City Center for Disease Control and Prevention, Haimen City, Jiangsu Province 226100, China
| | - Na Wang
- †Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Meifang Su
- ∥Yuhuan County Center for Disease Control and Prevention, Yuhuan County, Zhejiang Province 317600, China
| | - Chuanxi Tang
- ⊥Changning District Center for Disease Control and Prevention, Changning District, Shanghai 200051, China
| | - Feng Jiang
- †Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Ying Zhou
- †Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Yue Chen
- #School of Epidemiology, Public Health and Preventive Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H8M5, Canada
| | - Qingwu Jiang
- †Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
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Vosough M, Eshlaghi SN, Zadmard R. On the performance of multiway methods for simultaneous quantification of two fluoroquinolones in urine samples by fluorescence spectroscopy and second-order calibration strategies. Spectrochim Acta A Mol Biomol Spectrosc 2015; 136 Pt B:618-624. [PMID: 25315874 DOI: 10.1016/j.saa.2014.09.075] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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: 07/05/2014] [Revised: 09/05/2014] [Accepted: 09/19/2014] [Indexed: 06/04/2023]
Abstract
In the present work, the analytical performance of three multi-way algorithms has been evaluated. The proposed analytical problem was the simultaneous determination of moxifloxacin and ciprofloxacin in human urine samples using fluorescence spectroscopy. Parallel factor analysis (PARAFAC), self-weighted alternating trilinear decomposition (SWATLD) and unfolded partial least squares combined with the residual bilinearization procedure (U-PLS/RBL) have been compared, regarding their ability to solve the proposed problem. In this study, "second-order advantage" was also exploited for the mentioned algorithms through different calibration strategies. The three-way data was obtained via fluorescence spectroscopy, so that excitation-emission matrices (EEM) of the samples were recorded as the analytical signals. The accuracy and precision of each individual algorithm for analyzing the drugs in urine samples were compared using root mean square error of prediction (RMSEP), recovery and elliptical joint confidence region (EJCR) plots. The results revealed that each of the three algorithms could be applied for determination of moxifloxacin and ciprofloxacin, despite different EEM subsets and calibration strategies. However, better analytical performances were observed through PARAFAC and U-PLS/RBL modeling for MOX and CIP, respectively. So, by coupling the multi-way decomposition algorithms with fluorescence spectroscopy, a main part of preliminary sample preparation steps can be eliminated and experimental procedure might be significantly simplified, while achieving desirable analytical performance.
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Affiliation(s)
- Maryam Vosough
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran.
| | - Sara Noroozi Eshlaghi
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Reza Zadmard
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
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Picot VS, Bénet T, Messaoudi M, Telles JN, Chou M, Eap T, Wang J, Shen K, Pape JW, Rouzier V, Awasthi S, Pandey N, Bavdekar A, Sanghvi S, Robinson A, Contamin B, Hoffmann J, Sylla M, Diallo S, Nymadawa P, Dash-Yandag B, Russomando G, Basualdo W, Siqueira MM, Barreto P, Komurian-Pradel F, Vernet G, Endtz H, Vanhems P, Paranhos-Baccalà G. Multicenter case-control study protocol of pneumonia etiology in children: Global Approach to Biological Research, Infectious diseases and Epidemics in Low-income countries (GABRIEL network). BMC Infect Dis 2014; 14:635. [PMID: 25927410 PMCID: PMC4272811 DOI: 10.1186/s12879-014-0635-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 11/17/2014] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Data on the etiologies of pneumonia among children are inadequate, especially in developing countries. The principal objective is to undertake a multicenter incident case-control study of <5-year-old children hospitalized with pneumonia in developing and emerging countries, aiming to identify the causative agents involved in pneumonia while assessing individual and microbial factors associated with the risk of severe pneumonia. METHODS/DESIGN A multicenter case-control study, based on the GABRIEL network, is ongoing. Ten study sites are located in 9 countries over 3 continents: Brazil, Cambodia, China, Haiti, India, Madagascar, Mali, Mongolia, and Paraguay. At least 1,000 incident cases and 1,000 controls will be enrolled and matched for age and date. Cases are hospitalized children <5 years with radiologically confirmed pneumonia, and the controls are children without any features suggestive of pneumonia. Respiratory specimens are collected from all enrolled subjects to identify 19 viruses and 5 bacteria. Whole blood from pneumonia cases is being tested for 3 major bacteria. S. pneumoniae-positive specimens are serotyped. Urine samples from cases only are tested for detection of antimicrobial activity. The association between procalcitonin, C-reactive protein and pathogens is being evaluated. A discovery platform will enable pathogen identification in undiagnosed samples. DISCUSSION This multicenter study will provide descriptive results for better understanding of pathogens responsible for pneumonia among children in developing countries. The identification of determinants related to microorganisms associated with pneumonia and its severity should facilitate treatment and prevention.
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Affiliation(s)
- Valentina Sanchez Picot
- Emerging Pathogens Laboratory - Fondation Mérieux, Centre International de Recherche en Infectiologie (CIRI) Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, 21, Avenue Tony Garnier, Lyon, 69007, France.
| | - Thomas Bénet
- Infection Control and Epidemiology Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France.
- Epidemiology and Public Health Unit, University of Lyon 1, Lyon, France.
| | - Melina Messaoudi
- Emerging Pathogens Laboratory - Fondation Mérieux, Centre International de Recherche en Infectiologie (CIRI) Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, 21, Avenue Tony Garnier, Lyon, 69007, France.
| | - Jean-Noël Telles
- Emerging Pathogens Laboratory - Fondation Mérieux, Centre International de Recherche en Infectiologie (CIRI) Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, 21, Avenue Tony Garnier, Lyon, 69007, France.
| | - Monidarin Chou
- Faculty of Pharmacy, University of Health Sciences, Phnom Penh, Cambodia.
| | - Tekchheng Eap
- Department of Pneumology, National Pediatric Hospital, Phnom Penh, Cambodia.
| | - Jianwei Wang
- MOH Key Laboratory of Systems Biology of Pathogens and Dr. Christophe Mérieux Laboratory, IPB, CAMS-Fondation Mérieux, Institute of Pathogen Biology (IPB), Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College), Beijing, China.
| | - Kunling Shen
- Key Laboratory of Major Diseases in Children and National Key Discipline of Pediatrics (Capital Medical University), Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China.
| | - Jean-William Pape
- GHESKIO (Groupe Haïtien d'Etude du Sarcome de Kaposi et des Infections Opportunistes) Centers, Port au Prince, Haiti.
| | - Vanessa Rouzier
- GHESKIO (Groupe Haïtien d'Etude du Sarcome de Kaposi et des Infections Opportunistes) Centers, Port au Prince, Haiti.
| | | | - Nitin Pandey
- Chatrapati Shahuji Maharaj University, Lucknow, India.
| | | | | | | | - Bénédicte Contamin
- Fondation Mérieux, Centre d'Infectiologie Charles Mérieux (CICM), Antananarivo, Madagascar.
| | - Jonathan Hoffmann
- Fondation Mérieux, Centre d'Infectiologie Charles Mérieux (CICM), Antananarivo, Madagascar.
| | | | | | | | | | | | - Wilma Basualdo
- Hospital Pediátrico "Niños de Acosta Ñu", San Lorenzo, Paraguay.
| | - Marilda M Siqueira
- Respiratory virus Laboratory, Oswaldo Cruz Foundation, Hospital Bonsucesso, Rio de Janeiro, Brazil.
| | - Patricia Barreto
- Respiratory virus Laboratory, Oswaldo Cruz Foundation, Hospital Bonsucesso, Rio de Janeiro, Brazil.
| | - Florence Komurian-Pradel
- Emerging Pathogens Laboratory - Fondation Mérieux, Centre International de Recherche en Infectiologie (CIRI) Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, 21, Avenue Tony Garnier, Lyon, 69007, France.
| | - Guy Vernet
- Emerging Pathogens Laboratory - Fondation Mérieux, Centre International de Recherche en Infectiologie (CIRI) Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, 21, Avenue Tony Garnier, Lyon, 69007, France.
| | - Hubert Endtz
- Emerging Pathogens Laboratory - Fondation Mérieux, Centre International de Recherche en Infectiologie (CIRI) Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, 21, Avenue Tony Garnier, Lyon, 69007, France.
| | - Philippe Vanhems
- Infection Control and Epidemiology Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France.
- Epidemiology and Public Health Unit, University of Lyon 1, Lyon, France.
| | - Gláucia Paranhos-Baccalà
- Emerging Pathogens Laboratory - Fondation Mérieux, Centre International de Recherche en Infectiologie (CIRI) Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, 21, Avenue Tony Garnier, Lyon, 69007, France.
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Connors KP, Housman ST, Pope JS, Russomanno J, Salerno E, Shore E, Redican S, Nicolau DP. Phase I, open-label, safety and pharmacokinetic study to assess bronchopulmonary disposition of intravenous eravacycline in healthy men and women. Antimicrob Agents Chemother 2014; 58:2113-8. [PMID: 24468780 PMCID: PMC4023791 DOI: 10.1128/aac.02036-13] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Accepted: 01/18/2014] [Indexed: 11/20/2022] Open
Abstract
This study evaluated the pulmonary disposition of eravacycline in 20 healthy adult volunteers receiving 1.0 mg of eravacycline/kg intravenously every 12 h for a total of seven doses over 4 days. Plasma samples were collected at 0, 1, 2, 4, 6, and 12 h on day 4, with each subject randomized to undergo a single bronchoalveolar lavage (BAL) at 2, 4, 6, or 12 h. Drug concentrations in plasma, BAL fluid, and alveolar macrophages (AM) were determined by liquid chromatography-tandem mass spectrometry, and the urea correction method was used to calculate epithelial lining fluid (ELF) concentrations. Pharmacokinetic parameters were estimated by noncompartmental methods. Penetration for ELF and AM was calculated by using a ratio of the area under the concentration time curve (AUC0-12) for each respective parameter against free drug AUC (fAUC0-12) in plasma. The total AUC0-12 in plasma was 4.56±0.94 μg·h/ml with a mean fAUC0-12 of 0.77±0.14 μg·h/ml. The eravacycline concentrations in ELF and AM at 2, 4, 6, and 12 h were means±the standard deviations (μg/ml) of 0.70±0.30, 0.57±0.20, 0.34±0.16, and 0.25±0.13 with a penetration ratio of 6.44 and 8.25±4.55, 5.15±1.25, 1.77±0.64, and 1.42±1.45 with a penetration ratio of 51.63, respectively. The eravacycline concentrations in the ELF and AM achieved greater levels than plasma by 6- and 50-fold, respectively, supporting further study of eravacycline for patients with respiratory infections.
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Affiliation(s)
- Kevin P. Connors
- Center for Anti-Infective Research and Development, Hartford Hospital, Hartford, Connecticut, USA
| | - Seth T. Housman
- Center for Anti-Infective Research and Development, Hartford Hospital, Hartford, Connecticut, USA
| | - J. Samuel Pope
- CT Multispecialty Group, Pulmonary Division, Hartford, Connecticut, USA
| | - John Russomanno
- CT Multispecialty Group, Pulmonary Division, Hartford, Connecticut, USA
| | - Edward Salerno
- CT Multispecialty Group, Pulmonary Division, Hartford, Connecticut, USA
| | - Eric Shore
- CT Multispecialty Group, Pulmonary Division, Hartford, Connecticut, USA
| | - Susan Redican
- Tetraphase Pharmaceuticals, Inc., Watertown, Massachusetts, USA
| | - David P. Nicolau
- Center for Anti-Infective Research and Development, Hartford Hospital, Hartford, Connecticut, USA
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Yang X, Luo Y, Zhu S, Feng Y, Zhuo Y, Dou Y. One-pot synthesis of high fluorescent carbon nanoparticles and their applications as probes for detection of tetracyclines. Biosens Bioelectron 2014; 56:6-11. [PMID: 24445067 DOI: 10.1016/j.bios.2013.12.064] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 12/18/2013] [Accepted: 12/26/2013] [Indexed: 11/18/2022]
Abstract
Herein, a novel strategy for synthesizing fluorescent carbon nanoparticles (CPs) with a quantum yield of approximately 7.1% has been well established by mixing l-cysteine, diphosphorus pentoxide and water. Compared with other current protocols, the method described here displayed various advantages including friendly manipulations, low cost, and rapid reactions. Subsequently, we applied the CPs prepared here for detections of tetracyclines (TCs). Briefly, the fluorescence intensity of CPs was quenched once TCs were introduced. Based on this phenomenon, TCs were analyzed respectively accompanyed with satisfactory detection limits and linear ranges. Significantly, the practicability of this sensing method was further validated by assaying TC in human urine samples and pharmaceutical preparations, confirming its potential to broaden avenues for detecting TCs. Additionally, the CPs could serve as fluorescent powder and ink followed by a simple post-treatment, suggesting their promising applications.
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Affiliation(s)
- Xiaoming Yang
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China.
| | - Yawen Luo
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Shanshan Zhu
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Yuanjiao Feng
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Yan Zhuo
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Yao Dou
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
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Kawde AN, Temerk Y, Farhan N. Adsorptive stripping voltammetry of antibiotics rifamycin SV and rifampicin at renewable pencil electrodes. Acta Chim Slov 2014; 61:398-405. [PMID: 25125124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
Adsorptive stripping voltammetry of antibiotics of rifamycin SV (RSV) and rifampicin (RIF) was investigated by cyclic voltammetry and differential pulse voltammetry using a renewable pencil graphite electrode (PGE). The nature of the oxidation process of RSV and RIF taking place at the PGE was characterized. The results show that the determination of highly sensitive oxidation peak current is the basis of a simple, accurate and rapid method for quantification of RSV and RIF in bulk forms, pharmaceutical formulations and biological fluids by differential pulse adsorptive stripping voltammetry (DPASV). Factors influencing the trace measurement of RSV and RIF at PGE are assessed. The limits of detection for the determination of RSV and RIF in bulk forms are 6.0 × 10(-8) mol/L and 1.3 × 10(-8) mol/L, respectively. Moreover, the proposed procedure was successfully applied to assay both RSV and RIF in pharmaceutical formulations and in biological fluids. The capability of the proposed procedure for simultaneous assay of antibiotics RSV-isoniazid and RIF-isoniazid was achieved. The statistical analysis and calibration curve data for trace determination of RSV and RIF are reported.
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Tan H, Zhang L, Ma C, Song Y, Xu F, Chen S, Wang L. Terbium-based coordination polymer nanoparticles for detection of ciprofloxacin in tablets and biological fluids. ACS Appl Mater Interfaces 2013; 5:11791-11796. [PMID: 24156699 DOI: 10.1021/am403442q] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The metal-organic coordination polymers with tunable structures and properties have been rapidly emerging as very important functional materials. In this work, we prepared terbium (Tb(3+))-based coordination polymer nanoparticles (CPNPs) by employing adenine (Ad) as bridging ligands. The CPNPs was further used as a receptor reagent for ciprofloxacin (CF) detection in aqueous solution. Addition of CF induces a typical emission of Tb(3+) due to the formation of Ad/Tb-CF complex and the sensitization of CF. The fluorescent intensity of Tb(3+) was enhanced linearly with increasing the CF concentration from 60 nM to 14 μM. The detection limit for CF in aqueous solution is 60 nM. The Ad/Tb CPNPs was successfully applied to detect CF in tablet and urine samples and showed a satisfactory result. Compared with other methods, the proposed method is advantageous because that it provides a very simple strategy for CF detection, which does not require complicated sample pretreatment processes or special reaction media. The proposed strategy could be contributed to expand the potential applications of lanthanide coordination polymers in biological and environmental fields.
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Affiliation(s)
- Hongliang Tan
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education, Key Laboratory of Chemical Biology, Jiangxi Province, College of Chemistry and Chemical Engineering, Jiangxi Normal University , Nanchang 330022, P. R. China
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Wagenlehner FME, Münch F, Pilatz A, Bärmann B, Weidner W, Wagenlehner CM, Straubinger M, Blenk H, Pfister W, Kresken M, Naber KG. Urinary concentrations and antibacterial activities of nitroxoline at 250 milligrams versus trimethoprim at 200 milligrams against uropathogens in healthy volunteers. Antimicrob Agents Chemother 2013; 58:713-21. [PMID: 24217699 PMCID: PMC3910821 DOI: 10.1128/aac.02147-13] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 11/07/2013] [Indexed: 11/20/2022] Open
Abstract
Because of the increasing bacterial resistance of uropathogens against standard antibiotics, such as trimethoprim (TMP), older antimicrobial drugs, such as nitroxoline (NTX), should be reevaluated. This randomized crossover study investigated the urinary concentrations of parent drugs and their metabolites and their antibacterial activities (urinary inhibitory titers [UITs] and urinary bactericidal titers [UBTs]) against uropathogens at three different urinary pH values within 24 h in six healthy volunteers after a single oral dose of NTX at 250 mg versus TMP at 200 mg. In three additional volunteers, urinary bactericidal kinetics (UBK) were studied after oral administration of NTX at 250 mg three times a day. The mean urinary concentrations of NTX and NTX sulfate in 24 h were 0.012 to 0.507 mg/liter and 0.28 to 27.83 mg/liter, respectively. The mean urinary concentrations of TMP were 18.79 to 41.59 mg/liter. The antibacterial activity of NTX was higher in acidic urine than in alkaline urine, and that of TMP was higher in alkaline urine than in acidic urine. The UITs and UBTs of NTX were generally lower than those of TMP except for a TMP-resistant Escherichia coli strain, for which NTX showed higher UITs/UBTs than did TMP. UBK showed mainly bacteriostatic activity of NTX in urine. NTX exhibits mainly bacteriostatic activity and TMP also shows bactericidal activity in urine against susceptible strains. NTX is a more active antibacterial in acidic urine, and TMP is more active in alkaline urine. The cumulative effects of multiple doses or inhibition of bacterial adherence could not be evaluated. (This study has been registered at EudraCT under registration no. 2009-015631-32.).
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Affiliation(s)
| | - Fabian Münch
- Department of Urology, Pediatric Urology, and Andrology, Justus Liebig University, Giessen, Germany
| | - Adrian Pilatz
- Department of Urology, Pediatric Urology, and Andrology, Justus Liebig University, Giessen, Germany
| | - Birte Bärmann
- Department of Urology, Pediatric Urology, and Andrology, Justus Liebig University, Giessen, Germany
| | - Wolfgang Weidner
- Department of Urology, Pediatric Urology, and Andrology, Justus Liebig University, Giessen, Germany
| | | | | | - Holger Blenk
- Eukarion Institute, Department of Microbiology, Nuremburg, Germany
| | - Wolfgang Pfister
- Institute for Medical Microbiology, University of Jena, Jena, Germany
| | - Michael Kresken
- Antiinfectives Intelligence, Campus Hochschule Bonn-Rhein-Sieg, Rheinbach, Germany
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Tenero D, Bowers G, Rodvold KA, Patel A, Kurtinecz M, Dumont E, Tomayko J, Patel P. Intrapulmonary pharmacokinetics of GSK2251052 in healthy volunteers. Antimicrob Agents Chemother 2013; 57:3334-9. [PMID: 23650164 PMCID: PMC3697385 DOI: 10.1128/aac.02483-12] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Accepted: 04/28/2013] [Indexed: 11/20/2022] Open
Abstract
The plasma and intrapulmonary pharmacokinetics (PK) of intravenous (i.v.) GSK2251052, a novel boron-containing antimicrobial, were evaluated in healthy adult subjects. Thirty subjects underwent bronchoscopy and timed bronchoalveolar lavage (BAL) either following a single dose (cohort 1) or after 5 twice-daily doses (cohort 2) of 1,500 mg GSK2251052 i.v. Serial PK and safety assessments were obtained throughout the study. Bronchoscopy was performed on a single occasion in each subject at 2, 6, or 12 h after start of infusion. Noncompartmental analysis was performed to calculate PK parameters. Thirty subjects completed the study. The mean clearance (CL), volume of distribution at steady state (Vss), and half-life (t1/2) values were 22 liters/h, 231 liters, and 10.7 h, respectively. Approximately 30% of the dose was excreted unchanged in urine. The GSK2251052 concentrations in epithelial lining fluid (ELF) and alveolar macrophages (AM) were approximately 50% and 500 to 600%, respectively, compared to the concentration in plasma. the GSK2251052 exposures in ELF and AM were comparable following single- and repeat-dose administration. The most frequently reported drug-related adverse event (AE) was mild to moderate infusion site reactions (7 subjects) that occurred primarily in the repeat-dose cohort. No serious drug-related AEs or clinically significant trends in laboratory values, vital signs, or electrocardiograms were observed. GSK2251052 given as a 1,500-mg infusion was generally tolerated following single- or repeat-dose administration. GSK2251052 distributes into both the ELF and AM of healthy volunteers, which supports further study in patients with pneumonia.
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Affiliation(s)
- David Tenero
- GlaxoSmithKline, King of Prussia, Pennsylvania, USA
| | - Gary Bowers
- GlaxoSmithKline, Research Triangle Park, North Carolina, USA
| | - Keith A. Rodvold
- University of Illinois at Chicago, College of Pharmacy, Chicago, Illinois, USA
| | - Apurva Patel
- GlaxoSmithKline, Collegeville, Pennsylvania, USA
| | | | - Etienne Dumont
- GlaxoSmithKline, Research Triangle Park, North Carolina, USA
| | - John Tomayko
- GlaxoSmithKline, Collegeville, Pennsylvania, USA
| | - Parul Patel
- GlaxoSmithKline, Research Triangle Park, North Carolina, USA
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Riccobene TA, Su SF, Rank D. Single- and multiple-dose study to determine the safety, tolerability, and pharmacokinetics of ceftaroline fosamil in combination with avibactam in healthy subjects. Antimicrob Agents Chemother 2013; 57:1496-504. [PMID: 23295928 PMCID: PMC3591900 DOI: 10.1128/aac.02134-12] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 01/01/2013] [Indexed: 11/20/2022] Open
Abstract
This study was conducted to determine the safety, tolerability, and pharmacokinetics of intravenous doses of ceftaroline fosamil administered in combination with the novel non-β-lactam β-lactamase inhibitor avibactam in healthy adults. In the single-dose, open-label arm, 12 subjects received single 1-h intravenous infusions of ceftaroline fosamil alone (600 mg), avibactam alone (600 mg), and ceftaroline fosamil in combination with avibactam (600/600 mg) separated by 5-day washout periods. In the multiple-dose, placebo-controlled, double-blind arm, 48 subjects received intravenous infusions of ceftaroline fosamil/avibactam at 600/600 mg every 12 h (q12h), 400/400 mg q8h, 900/900 mg q12h, 600/600 mg q8h, or placebo for 10 days. Ceftaroline and avibactam levels in plasma and urine were measured by liquid chromatography coupled with tandem mass spectrometry. No significant differences in systemic exposure of ceftaroline or avibactam were observed when the drugs were administered alone versus concomitantly, indicating that there was no apparent pharmacokinetic interaction between ceftaroline fosamil and avibactam administered as a single dose. No appreciable accumulation of either drug occurred with multiple intravenous doses of ceftaroline fosamil/avibactam, and pharmacokinetic parameters for ceftaroline and avibactam were similar on days 1 and 10. Infusions of ceftaroline fosamil/avibactam were well tolerated at total daily doses of up to 1,800 mg of each compound, and all adverse events (AEs) were mild to moderate in severity. Infusion-site reactions were the most common AEs reported with multiple dosing. The pharmacokinetic and safety profiles of ceftaroline fosamil/avibactam demonstrate that the 2 drugs can be administered concomitantly to provide an important broad-spectrum antimicrobial treatment option.
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Fukahori S, Fujiwara T, Funamizu N, Matsukawa K, Ito R. Adsorptive removal of sulfonamide antibiotics in livestock urine using the high-silica zeolite HSZ-385. Water Sci Technol 2013; 67:319-325. [PMID: 23168630 DOI: 10.2166/wst.2012.513] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The adsorptive removal of seven sulfonamide antibiotics using the high-silica zeolite HSZ-385 from distilled water, synthetic urine and real porcine urine was investigated. The pH greatly affected the adsorption efficiency, and the amounts of all sulfonamide antibiotics adsorbed on HSZ-385 decreased at alkaline conditions compared with that at neutral conditions. During storage, the pH and ammonium-ion concentration increased with urea hydrolysis for porcine urine. We clarified that the adsorption efficiency of sulfonamides in synthetic urine was equivalent to that in distilled water, suggesting that adsorption behavior was not affected by coexistent ions. HSZ-385 could adsorb sulfonamide antibiotics in real porcine urine even though the non-purgeable organic carbon concentration of porcine urine was 4-7 g/L and was two orders of magnitude higher than those of sulfonamides (10 mg/L each). Moreover, the adsorption of sulfonamides reached equilibrium within 15 min, suggesting that HSZ-385 is a promising adsorbent for removing sulfonamides from porcine urine.
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Affiliation(s)
- S Fukahori
- Research and Education Faculty, Natural Sciences Cluster, Agriculture Unit, Kochi University, 200 Monobe Otsu, Nankoku, Kochi 783-8502, Japan.
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