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Abraham K, Penczynski K, Monien BH, Bergau N, Knüppel S, Weikert C. Risks of misinterpretation of biomarker measurements in spot urine adjusted for creatinine - A problem especially for studies comparing plant based with omnivorous diets. Int J Hyg Environ Health 2023; 249:114142. [PMID: 36842230 DOI: 10.1016/j.ijheh.2023.114142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 02/17/2023] [Accepted: 02/17/2023] [Indexed: 02/27/2023]
Abstract
Biomarker measurements in spot urine are often adjusted for creatinine to control for dilution resulting from individual hydration. We here report on results of a study involving age- and sex-matched vegans and omnivores (n = 36 each). The daily urinary excretion of 2,3-dihydroxypropylmercapturic acid (DHPMA, a diet-independent endogenous C3-metabolite used as an example compound) was found not to be different in vegans and omnivores (median 433 μg/24 h each), however, creatinine-adjusted levels were 26% lower in omnivores (median 285 μg/g creatinine) than in vegans (median 383 μg/g creatinine, p = 0.003). This difference results from the higher urinary excretion of creatinine in the omnivores compared to vegans (median 1.51 vs. 1.21 g/24 h, p = 0.009). Linear regression showed - besides the fat-free mass - a significant impact of the factor diet (vegans vs. omnivores). This may be due to the consumption of meat and fish as exogenous sources of creatinine. A literature search revealed broad evidence for this interpretation, as creatinine is formed from creatine during heating of meat and fish. Accordingly, consumption leads to temporary increase of serum/plasma creatinine and urinary creatinine excretion, resulting in higher levels in omnivores compared to vegans/vegetarians. An adjustment of the urinary DHPMA concentrations using specific gravity revealed 13% lower values in omnivores (median 225 μg/L) than in vegans (median 260 μg/L, p = 0.07). Compared to creatinine-adjustment, adjustment for specific gravity introduces a smaller but still obvious difference between omnivores and vegans. Especially with respect to future studies comparing vegans, vegetarians and omnivores, researchers should be aware of the risks of severe misinterpretations if biomarker measurements in spot urine are adjusted for creatinine.
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Affiliation(s)
- Klaus Abraham
- German Federal Institute for Risk Assessment, Department Food Safety, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany.
| | - Katharina Penczynski
- German Federal Institute for Risk Assessment, Department Food Safety, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany
| | - Bernhard H Monien
- German Federal Institute for Risk Assessment, Department Food Safety, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany
| | - Nick Bergau
- German Federal Institute for Risk Assessment, Department Food Safety, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany
| | - Sven Knüppel
- German Federal Institute for Risk Assessment, Department Food Safety, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany
| | - Cornelia Weikert
- German Federal Institute for Risk Assessment, Department Food Safety, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany
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2
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Kondakova EV, Filat’eva AE, Lobanova NA, Nagaev EI, Sarimov RM, Gudkov SV, Vedunova MV. Case report: Applicability of breastfeeding the child of a patient with kidney failure with replacement therapy. Front Med (Lausanne) 2023; 10:1098324. [PMID: 36844211 PMCID: PMC9950765 DOI: 10.3389/fmed.2023.1098324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/27/2023] [Indexed: 02/12/2023] Open
Abstract
This case report highlights the benefit or harm of breastfeeding in a patient with Kidney Failure with Replacement Therapy (KFRT) undergoing program hemodialysis. This is a unique clinical case, as pregnancy and successful delivery are rare in this group of females. With a favorable outcome, the possibility of breastfeeding is especially relevant for doctors and the mother. The patient was a 31-year-old female who was diagnosed in 2017 with end-stage renal disease associated with chronic glomerulonephritis. Against the background of hemodialysis, pregnancy, accompanied by polyhydramnios, anemia, and secondary arterial hypertension, occurred in 2021. At 37 weeks, a healthy, full-term baby girl was born, and breastfeeding was started. In this study, we conducted a detailed analysis of toxic substances and immunologically significant proteins using high-tech analysis methods. In addition, we studied different portions of milk before and after hemodialysis at different time intervals. After a wide range of experiments, our study did not reveal an optimal time interval for breastfeeding a baby. Despite the decrease in the level of the major uremic toxins 4 h after the hemodialysis procedure, their level remained high. In addition, the content of nutrients did not reach acceptable limits and the immune status was characterized as pro-inflammatory. In our opinion, breastfeeding is not advisable for this group of patients since the concentration of nutrients is low, and the content of toxic substances exceeds the permissible limits. In this clinical case, the patient decided to stop breastfeeding one month after delivery due to insufficient breast milk and the inability to express it in a certain period of time.
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Affiliation(s)
- Elena V. Kondakova
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia,*Correspondence: Elena V. Kondakova,
| | - Anastasia E. Filat’eva
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Nadezhda A. Lobanova
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia,Branch FESFARM NN, Nizhny Novgorod, Russia
| | - Egor I. Nagaev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
| | - Ruslan M. Sarimov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
| | - Maria V. Vedunova
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
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3
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Nauwelaerts N, Deferm N, Smits A, Bernardini C, Lammens B, Gandia P, Panchaud A, Nordeng H, Bacci ML, Forni M, Ventrella D, Van Calsteren K, DeLise A, Huys I, Bouisset-Leonard M, Allegaert K, Annaert P. A comprehensive review on non-clinical methods to study transfer of medication into breast milk - A contribution from the ConcePTION project. Biomed Pharmacother 2021; 136:111038. [PMID: 33526310 DOI: 10.1016/j.biopha.2020.111038] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/03/2020] [Accepted: 11/16/2020] [Indexed: 12/23/2022] Open
Abstract
Breastfeeding plays a major role in the health and wellbeing of mother and infant. However, information on the safety of maternal medication during breastfeeding is lacking for most medications. This leads to discontinuation of either breastfeeding or maternal therapy, although many medications are likely to be safe. Since human lactation studies are costly and challenging, validated non-clinical methods would offer an attractive alternative. This review gives an extensive overview of the non-clinical methods (in vitro, in vivo and in silico) to study the transfer of maternal medication into the human breast milk, and subsequent neonatal systemic exposure. Several in vitro models are available, but model characterization, including quantitative medication transport data across the in vitro blood-milk barrier, remains rather limited. Furthermore, animal in vivo models have been used successfully in the past. However, these models don't always mimic human physiology due to species-specific differences. Several efforts have been made to predict medication transfer into the milk based on physicochemical characteristics. However, the role of transporter proteins and several physiological factors (e.g., variable milk lipid content) are not accounted for by these methods. Physiologically-based pharmacokinetic (PBPK) modelling offers a mechanism-oriented strategy with bio-relevance. Recently, lactation PBPK models have been reported for some medications, showing at least the feasibility and value of PBPK modelling to predict transfer of medication into the human milk. However, reliable data as input for PBPK models is often missing. The iterative development of in vitro, animal in vivo and PBPK modelling methods seems to be a promising approach. Human in vitro models will deliver essential data on the transepithelial transport of medication, whereas the combination of animal in vitro and in vivo methods will deliver information to establish accurate in vitro/in vivo extrapolation (IVIVE) algorithms and mechanistic insights. Such a non-clinical platform will be developed and thoroughly evaluated by the Innovative Medicines Initiative ConcePTION.
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Affiliation(s)
- Nina Nauwelaerts
- KU Leuven Drug Delivery and Disposition Lab, Department of Pharmaceutical and Pharmacological Sciences, O&N II Herestraat, 49 3000, Leuven, Belgium.
| | - Neel Deferm
- KU Leuven Drug Delivery and Disposition Lab, Department of Pharmaceutical and Pharmacological Sciences, O&N II Herestraat, 49 3000, Leuven, Belgium.
| | - Anne Smits
- Neonatal Intensive Care Unit, University Hospitals Leuven, UZ Leuven, Neonatology, Herestraat 49, 3000, Leuven, Belgium; Department of Development and Regeneration, KU Leuven, Belgium.
| | - Chiara Bernardini
- Department of Veterinary Medical Sciences, University of Bologna, 40064, Ozzano dell'Emilia, BO, Italy.
| | | | - Peggy Gandia
- Laboratoire de Pharmacocinétique et Toxicologie, Centre Hospitalier Universitaire de Toulouse, France.
| | - Alice Panchaud
- Service of Pharmacy Service, Lausanne University Hospital and University of Lausanne, Switzerland; Institute of Primary Health Care (BIHAM), University of Bern, Switzerland
| | - Hedvig Nordeng
- PharmacoEpidemiology and Drug Safety Research Group, Department of Pharmacy, University of Oslo, PB. 1068 Blindern, 0316, Oslo, Norway.
| | - Maria Laura Bacci
- Department of Veterinary Medical Sciences, University of Bologna, 40064, Ozzano dell'Emilia, BO, Italy.
| | - Monica Forni
- Department of Veterinary Medical Sciences, University of Bologna, 40064, Ozzano dell'Emilia, BO, Italy.
| | - Domenico Ventrella
- Department of Veterinary Medical Sciences, University of Bologna, 40064, Ozzano dell'Emilia, BO, Italy.
| | | | - Anthony DeLise
- Novartis Pharmaceuticals Corporation, Novartis Institutes for BioMedical Research, One Health Plaza, East Hanover, NJ, 07936, USA.
| | - Isabelle Huys
- KU Leuven, Department of Clinical Pharmacology and Pharmacotherapy, ON II Herestraat 49 - bus, 521 3000, Leuven, Belgium.
| | - Michele Bouisset-Leonard
- Novartis Pharma AG, Novartis Institutes for BioMedical Research, Werk Klybeck Postfach, Basel, CH-4002, Switzerland.
| | - Karel Allegaert
- Department of Development and Regeneration, KU Leuven, Belgium; KU Leuven, Department of Clinical Pharmacology and Pharmacotherapy, ON II Herestraat 49 - bus, 521 3000, Leuven, Belgium; Department of Clinical Pharmacy, Erasmus MC, Rotterdam, the Netherlands.
| | - Pieter Annaert
- KU Leuven Drug Delivery and Disposition Lab, Department of Pharmaceutical and Pharmacological Sciences, O&N II Herestraat, 49 3000, Leuven, Belgium.
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4
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Aguiar LH, Gomes VCL, Paul LJ, Andrews FM, Chaffin MK, Sones JL. Renal failure in a pregnant mare. EQUINE VET EDUC 2020. [DOI: 10.1111/eve.13428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- L. H. Aguiar
- Equine Health Studies Program Department of Veterinary Clinical Sciences School of Veterinary Medicine Louisiana State University Baton Rouge LouisianaUSA
| | - V. C. L. Gomes
- Equine Health Studies Program Department of Veterinary Clinical Sciences School of Veterinary Medicine Louisiana State University Baton Rouge LouisianaUSA
| | - L. J. Paul
- Equine Health Studies Program Department of Veterinary Clinical Sciences School of Veterinary Medicine Louisiana State University Baton Rouge LouisianaUSA
| | - F. M. Andrews
- Equine Health Studies Program Department of Veterinary Clinical Sciences School of Veterinary Medicine Louisiana State University Baton Rouge LouisianaUSA
| | - M. K. Chaffin
- Department of Large Animal Clinical Sciences College of Veterinary Medicine & Biomedical Sciences Texas A&M University College Station Texas USA
| | - J. L. Sones
- Equine Health Studies Program Department of Veterinary Clinical Sciences School of Veterinary Medicine Louisiana State University Baton Rouge LouisianaUSA
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5
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Singh M. Breastfeeding and Medication Use in Kidney Disease. Adv Chronic Kidney Dis 2020; 27:516-524. [PMID: 33328068 PMCID: PMC7211684 DOI: 10.1053/j.ackd.2020.05.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 12/23/2022]
Abstract
Pregnancy in CKD is a condition fraught with challenges including multiple medications, high-risk pregnancy followed by maternal and fetal compromise such as preterm delivery, and low birth weight infant. Breastfeeding is unique in its impact on the mother and the baby, their bonding, and future health implications impacting the society. Breast milk is produced specific for the infant by the biological mother. It changes in composition with lactation stage and leads to optimal growth of the baby including establishing circadian rhythms, getting protective antibodies, and establishing a healthy gut microbiome. Multiple hormones influence the composition of the milk. Lactation is maintained by removal of the milk. Blood-milk barrier allows for the specific composition of milk by transporting different sized molecules through different mechanisms. It is safe to assume that most medications will be found in some amount in human milk; however, the impact of that is usually not enough to justify stopping breastfeeding. When the mother's milk is not available, formula or donor milk can be considered. There are resources to guide the use of medications during lactation that the providers should be aware of and use, to guide medication and breastfeeding recommendations.
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6
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Sprenger-Mähr H, Zitt E, Kronbichler A, Cejna M, Lhotta K. A hemodialysis patient with bone disease after pregnancy: a case report. BMC Nephrol 2019; 20:425. [PMID: 31752733 PMCID: PMC6873679 DOI: 10.1186/s12882-019-1603-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 10/28/2019] [Indexed: 11/10/2022] Open
Abstract
Background Pregnancy is rare in women on hemodialysis. Recommendations for the treatment of secondary hyperparathyroidism (sHPT) and preservation of bone health in pregnant dialysis patients are lacking. Case presentation We present the case of a young woman with end-stage kidney disease (ESKD) due to lupus nephritis, who developed multiple brown tumors while on hemodialysis during her second pregnancy. During her first pregnancy sHPT was well controlled and no skeletal complications occurred. Before the second pregnancy she developed severe sHPT. During pregnancy, dialysis time was increased to 24 h per week, the patient was given oral calcitriol, and the dialysate calcium concentration was set at 1.5 mmol/l. In week 20 the patient complained about bone pain in her left hip. Magnetic resonance imaging revealed a cystic lesion compatible with a brown tumor. The baby was delivered in the 36th week by cesarean section. Further assessment identified multiple brown tumors of her skeleton, including the acetabulum, tibia, ribs, skull, thoracic spine and thumb. She required multiple orthopedic surgeries. Three months after pregnancy, etelcalcetide was started, which brought about a gradual improvement in her sHPT. Conclusions This case demonstrates that the combination of pregnancy and severe sHPT in dialysis patients can have deleterious consequences for bone health.
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Affiliation(s)
- Hannelore Sprenger-Mähr
- Department of Internal Medicine III, Academic Teaching Hospital Feldkirch, Carinagasse 47, Feldkirch, Austria
| | - Emanuel Zitt
- Department of Internal Medicine III, Academic Teaching Hospital Feldkirch, Carinagasse 47, Feldkirch, Austria
| | - Andreas Kronbichler
- Department of Internal Medicine IV, Medical University of Innsbruck, Innsbruck, Austria
| | - Manfred Cejna
- Institute for Diagnostic and Interventional Radiology, Academic Teaching Hospital Feldkirch, Feldkirch, Austria
| | - Karl Lhotta
- Department of Internal Medicine III, Academic Teaching Hospital Feldkirch, Carinagasse 47, Feldkirch, Austria.
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7
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Mercadal L, Nizard J. Prepregnancy counselling and management of pregnancy in haemodialysis patients. Nephrol Dial Transplant 2019; 35:219-221. [DOI: 10.1093/ndt/gfz056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Indexed: 11/12/2022] Open
Affiliation(s)
- Lucile Mercadal
- Nephrology Department, Pitié Salpêtrière Hospital, AP-HP, Paris, France
| | - Jacky Nizard
- Hôpital Pitié Salpêtrière, Department of Obstetrics and Gynecology, Sorbonne University, Paris, France
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8
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Haseler E, Melhem N, Sinha MD. Renal disease in pregnancy: Fetal, neonatal and long-term outcomes. Best Pract Res Clin Obstet Gynaecol 2019; 57:60-76. [PMID: 30930143 DOI: 10.1016/j.bpobgyn.2019.01.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 12/19/2018] [Accepted: 01/21/2019] [Indexed: 12/17/2022]
Abstract
Renal disease in women of childbearing age is estimated to be approximately 3%; consequently, renal disease is not an uncommon comorbidity in pregnancy. There has been considerable evidence published over the last 20 years to suggest that renal disease in pregnancy is associated with higher maternal, fetal, and offspring morbidity. Studies published are largely heterogeneous; include unmatched cohort studies; and focus on early neonatal outcomes such as prematurity, small for gestational age, and neonatal unit admission. There appears to be an inverse relationship between maternal renal function and likelihood of neonatal morbidity using these outcome measures. Overall though, data regarding medium-to long-term outcomes for children born to mothers with renal disease are scarce. However, in view of emerging epidemiological evidence regarding cardiovascular programming in intrauterine life in those born premature or small for gestational age, it is likely that this population of children remain at high risk of cardiovascular disease as adults. The scope of this review is to amalgamate and summarize existing evidence regarding the outcomes of infants born to mothers with renal disease. Focus will be given to pregnancy-related acute kidney injury, chronic kidney disease, dialysis, and transplantation.
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Affiliation(s)
- Emily Haseler
- Department of Paediatric Nephrology, Evelina London Children's Hospital, Guys & St Thomas NHS Foundation Trust, Westminster Bridge Road, London SE1 7EH, UK
| | - Nabil Melhem
- Department of Paediatric Nephrology, Evelina London Children's Hospital, Guys & St Thomas NHS Foundation Trust, Westminster Bridge Road, London SE1 7EH, UK
| | - Manish D Sinha
- Department of Paediatric Nephrology, Evelina London Children's Hospital, Guys & St Thomas NHS Foundation Trust, Westminster Bridge Road, London SE1 7EH, UK; Kings College London, UK.
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Gay MCL, Koleva PT, Slupsky CM, Toit ED, Eggesbo M, Johnson CC, Wegienka G, Shimojo N, Campbell DE, Prescott SL, Munblit D, Geddes DT, Kozyrskyj AL. Worldwide Variation in Human Milk Metabolome: Indicators of Breast Physiology and Maternal Lifestyle? Nutrients 2018; 10:nu10091151. [PMID: 30420587 PMCID: PMC6163258 DOI: 10.3390/nu10091151] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 08/16/2018] [Accepted: 08/20/2018] [Indexed: 01/12/2023] Open
Abstract
Human milk provides essential substrates for the optimal growth and development of a breastfed infant. Besides providing nutrients to the infant, human milk also contains metabolites which form an intricate system between maternal lifestyle, such as the mother's diet and the gut microbiome, and infant outcomes. This study investigates the variation of these human milk metabolites from five different countries. Human milk samples (n = 109) were collected one month postpartum from Australia, Japan, the USA, Norway, and South Africa and were analyzed by nuclear magnetic resonance. The partial least squares discriminant analysis (PLS-DA) showed separation between either maternal countries of origin or ethnicities. Variation between countries in concentration of metabolites, such as 2-oxoglutarate, creatine, and glutamine, in human milk, between countries, could provide insights into problems, such as mastitis and/or impaired functions of the mammary glands. Several important markers of milk production, such as lactose, betaine, creatine, glutamate, and glutamine, showed good correlation between each metabolite. This work highlights the importance of milk metabolites with respect to maternal lifestyle and the environment, and also provides the framework for future breastfeeding and microbiome studies in a global context.
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Affiliation(s)
- Melvin C L Gay
- School of Molecular Sciences, University of Western Australia, Perth, WA 6009, Australia.
| | - Petya T Koleva
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, AB T6G 1C9, Canada.
| | - Carolyn M Slupsky
- Departments of Nutrition/Food Science & Technology, University of California Davis, California, CA 95616-5270, USA.
| | - Elloise du Toit
- Division of Medical Microbiology, University of Cape Town, Cape Town, Rondebosch 7701, South Africa.
| | - Merete Eggesbo
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo N-0213, Norway.
| | - Christine C Johnson
- Department of Public Health Sciences, Henry Ford Hospital, Detroit, MI 48208, USA.
| | - Ganesa Wegienka
- Department of Public Health Sciences, Henry Ford Hospital, Detroit, MI 48208, USA.
| | - Naoki Shimojo
- Department of Pediatrics, Chiba University, Chiba 260-8677, Japan.
| | - Dianne E Campbell
- Department of Allergy and Immunology, Children's Hospital at Westmead, University of Sydney, Sydney, NSW 2145, Australia.
| | - Susan L Prescott
- School of Medicine, University of Western Australia, Nedlands, WA 6009, Australia.
- ORIGINS Project, Telethon Kids Institute, Perth Children's Hospital, Perth, WA 6009, Australia.
| | - Daniel Munblit
- Department of Paediatrics, Imperial College London, London W2 1NY, UK.
- Faculty of Pediatrics, Sechenov University, Moscow 119991, Russia.
| | - Donna T Geddes
- School of Molecular Sciences, University of Western Australia, Perth, WA 6009, Australia.
| | - Anita L Kozyrskyj
- Departments of Pediatrics/Obstetrics & Gynecology, School of Public Health, University of Alberta, Edmonton, Alberta AB T6G 1C9, Canada.
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10
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Chruscicki A, Morton AR, Akbari A, White CA. Composition of human breast milk in acute kidney injury. Obstet Med 2017; 10:79-82. [PMID: 28680467 PMCID: PMC5480647 DOI: 10.1177/1753495x16686276] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 11/15/2016] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Breastfeeding is a widely encouraged practice due to its benefits for mother and the infant. Little is known about the impact of disease states, such as kidney dysfunction and childbirth complications, on the composition of breast milk. METHODS We describe a case of a 35-year-old woman who suffered a postpartum hemorrhage, was administered a contrast dye prior to computer tomography, and developed an acute kidney injury. Using nuclear magnetic resonance spectrometry, we measured composition of milk in acute kidney injury. The amount of dye secreted into milk was determined using a spectroscopic assay. RESULTS Here we show that acute kidney injury results in changes in milk composition, but it does not significantly affect major macronutrients. We also determine that iodinated computer tomography contrast dye does not accumulate in milk in appreciable amounts. CONCLUSION Acute kidney injury has impact on breast milk. Intravenous administration of computer tomography contrast dye does not result in significantly elevated levels in milk.
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Affiliation(s)
| | | | - Ayub Akbari
- Department of Medicine, University of Ottawa, Canada
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11
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Anderson PO. New and Unusual LactMed Topics. Breastfeed Med 2016; 11:430-432. [PMID: 27598651 DOI: 10.1089/bfm.2016.0136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Philip O Anderson
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California , San Diego, La Jolla, California
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