scholarly journals Organic contaminants in human breast milk identified by non-targeted analysis

Chemosphere ◽  
2020 ◽  
Vol 238 ◽  
pp. 124677 ◽  
Author(s):  
Cuong D. Tran ◽  
Nathan G. Dodder ◽  
Penelope J.E. Quintana ◽  
Kayo Watanabe ◽  
Jae H. Kim ◽  
...  
2007 ◽  
Vol 146 (1) ◽  
pp. 225-232 ◽  
Author(s):  
Oyuna V. Tsydenova ◽  
Agus Sudaryanto ◽  
Natsuko Kajiwara ◽  
Tatsuya Kunisue ◽  
Valeriy B. Batoev ◽  
...  

2004 ◽  
Vol 287 (5) ◽  
pp. C1404-C1411 ◽  
Author(s):  
Ryoko Minekawa ◽  
Takashi Takeda ◽  
Masahiro Sakata ◽  
Masami Hayashi ◽  
Aki Isobe ◽  
...  

Neonatal necrotizing enterocolitis (NEC), which is a disease with a poor prognosis, is considered to be caused by the coincidence of intestinal ischemia-reperfusion injury and systemic inflammation due to the colonization of pathogenic bacteria. Interleukin (IL)-8, a proinflammatory cytokine, plays an important role in the pathophysiology of NEC. It was recently reported that IL-1β activates the IL-8 gene by regulating the transcriptional nuclear factor κB (NF-κB) signaling pathways in intestinal cells. The protective role of maternal milk in NEC pathogenesis has been reported in both human and animal studies. In this study, we show that human breast milk dramatically suppressed the IL-1β-induced activation of the IL-8 gene promoter by inhibiting the activation pathway of NF-κB. Moreover, we also show that human breast milk induced the production of IκBα. These results suggest that human breast milk could be protective and therapeutic in neonates with NEC by inhibiting the activation pathway of NF-κB.


Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 573
Author(s):  
Naoko Tsugawa ◽  
Mayu Nishino ◽  
Akiko Kuwabara ◽  
Honami Ogasawara ◽  
Maya Kamao ◽  
...  

Background: Breast milk is considered the optimal source of nutrition during infancy. Although the vitamin D concentration in human breast milk is generally considered poor for infants, vitamin D in breast milk is an important source for exclusively breastfed infants. Increases in vitamin D insufficiency and deficiency in lactating mothers may reduce vitamin D concentrations in breast milk. This study aimed to compare vitamin D and 25-hydroxyvitamin D (25OHD) concentrations in breast milk collected in 1989 and 2016–2017 and simultaneously analyze them with liquid chromatography-tandem mass spectrometry (LC-MS/MS); the association between the lifestyle of recent lactating mothers (2016–2017) and vitamin D status in human breast milk was also evaluated. Method: Lactating mothers were recruited from three regions of Japan in 1989 (n = 72) and 2016–2017 (n = 90), and milk from 3–4 months was collected in summer and winter. The samples were strictly sealed and stored at −80℃ until measurement. Breast milk vitamin D and 25OHD concentrations were analyzed by LC-MS/MS. Vitamin D intake, sun exposure, and sunscreen use of the lactating mothers in 2016–2017 were assessed. Results: Both vitamin D and 25OHD concentrations in breast milk were higher in the summer regardless of the survey year. Significantly lower vitamin D and 25OHD concentrations were observed in 2016–2017 compared with 1989 in summer, but no survey year difference was observed in winter. The stepwise multiple regression analyses identified season, daily outdoor activity, and suntan in the last 12 months as independent factors associated with vitamin D3 concentrations. Conclusion: The results suggest that low vitamin D status in recent lactating mothers may have decreased vitamin D and 25OHD concentrations in breast milk compared with the 1980s. These results are helpful for developing public health strategies to improve vitamin D status in lactating mothers and infants.


Author(s):  
Yahya R. Tahboub ◽  
Adnan M. Massadeh ◽  
Nihaya A. Al-sheyab ◽  
Diab El shrafat ◽  
Israa A. Nsserat

2019 ◽  
Vol 123 ◽  
pp. 286-297 ◽  
Author(s):  
Muhammad Shahid Riaz Rajoka ◽  
Haobin Zhao ◽  
Hafiza Mahreen Mehwish ◽  
Na Li ◽  
Yao Lu ◽  
...  

2020 ◽  
Vol 14 (2) ◽  
pp. 131-138 ◽  
Author(s):  
Maryam Borhani-Haghighi ◽  
Shadan Navid ◽  
Yousef Mohamadi

Study Design: Experimental animal study.Purpose: This study investigated the therapeutic effects of human breast milk stem cell (BMSC)-conditioned medium (BMSC-CM) in a model of spinal cord injury (SCI) in male Sprague-Dawley rats.Overview of Literature: SCI is one of the leading causes of disability in addition to sensory and motor impairment. So far, there have been no successful treatments for SCI. Given the positive outcomes associated with using stem cells and their derivatives as a treatment for various diseases, there is a growing interest in using them as an SCI treatment. Recent research has demonstrated that CM from stem cells has therapeutic advantages.Methods: Human BMSCs were isolated and characterized, and CM was subsequently collected. Animals received an intrathecal administration of BMSC-CM after SCI. The activity of caspase-3 was measured to assess apoptosis, and levels of tumor necrosis factor-α and interleukin-1β were measured to assess inflammation. Also, sensory and locomotor performances were assessed after SCI and BMSC-CM administration.Results: Administration of CM from BMSC reduced apoptosis and inflammation at the site of injury in a rat model of SCI (p<0.05). Motor, sensory, locomotor, and sensorimotor performances were significantly improved in rats that received BMSC-CM after SCI.Conclusions: Intrathecal administration of BMSC-CM improved recovery in a rat model of SCI.


1989 ◽  
Vol 35 (10) ◽  
pp. 2127-2129 ◽  
Author(s):  
Y Bergqvist ◽  
L Karlsson ◽  
L Fohlin

Abstract This simple method of centrifugal analysis for total protein in human breast milk is based on the change in the wavelength of the absorbance maximum of Coomassie Brilliant Blue G-250 when the dye is bound to protein. Within-run and between-day CVs were 3.8% and 4.8%, respectively. Compared with a micro-Kjeldahl method for determination of total nitrogen, the coefficient of correlation was 0.99.


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