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Radzishevsky I, Odeh M, Bodner O, Zubedat S, Shaulov L, Litvak M, Esaki K, Yoshikawa T, Agranovich B, Li WH, Radzishevsky A, Gottlieb E, Avital A, Wolosker H. Impairment of serine transport across the blood-brain barrier by deletion of Slc38a5 causes developmental delay and motor dysfunction. Proc Natl Acad Sci U S A 2023; 120:e2302780120. [PMID: 37812701 PMCID: PMC10589673 DOI: 10.1073/pnas.2302780120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 09/08/2023] [Indexed: 10/11/2023] Open
Abstract
Brain L-serine is critical for neurodevelopment and is thought to be synthesized solely from glucose. In contrast, we found that the influx of L-serine across the blood-brain barrier (BBB) is essential for brain development. We identified the endothelial Slc38a5, previously thought to be a glutamine transporter, as an L-serine transporter expressed at the BBB in early postnatal life. Young Slc38a5 knockout (KO) mice exhibit developmental alterations and a decrease in brain L-serine and D-serine, without changes in serum or liver amino acids. Slc38a5-KO brains exhibit accumulation of neurotoxic deoxysphingolipids, synaptic and mitochondrial abnormalities, and decreased neurogenesis at the dentate gyrus. Slc38a5-KO pups exhibit motor impairments that are affected by the administration of L-serine at concentrations that replenish the serine pool in the brain. Our results highlight a critical role of Slc38a5 in supplying L-serine via the BBB for proper brain development.
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Affiliation(s)
- Inna Radzishevsky
- Department of Biochemistry, B. Rappaport Faculty of Medicine, Technion-Israel Institue of Technology, Haifa3109601, Israel
| | - Maali Odeh
- Department of Biochemistry, B. Rappaport Faculty of Medicine, Technion-Israel Institue of Technology, Haifa3109601, Israel
| | - Oded Bodner
- Department of Biochemistry, B. Rappaport Faculty of Medicine, Technion-Israel Institue of Technology, Haifa3109601, Israel
| | - Salman Zubedat
- Department of Occupational Therapy, Faculty of Social Welfare and Health Sciences, University of Haifa, Haifa3498838, Israel
| | - Lihi Shaulov
- Electron Microscopy Unit, B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa3109601, Israel
| | - Maxim Litvak
- Department of Biochemistry, B. Rappaport Faculty of Medicine, Technion-Israel Institue of Technology, Haifa3109601, Israel
| | - Kayoko Esaki
- Department of Biotechnology and Life Sciences, Faculty of Biotechnology and Life Sciences, Sojo University, Kumamoto860-0082, Japan
| | - Takeo Yoshikawa
- Laboratory of Molecular Psychiatry, RIKEN Center for Brain Science, Saitama351-0198, Japan
| | - Bella Agranovich
- Laura and Isaac Perlmutter Metabolomics Center, B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa3109601, Israel
| | - Wen-Hong Li
- Department of Cell Biology and Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX75390-9039
| | | | - Eyal Gottlieb
- Technion-Integrated Cancer Center, B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa3109601, Israel
| | - Avi Avital
- Department of Occupational Therapy, Faculty of Social Welfare and Health Sciences, University of Haifa, Haifa3498838, Israel
| | - Herman Wolosker
- Department of Biochemistry, B. Rappaport Faculty of Medicine, Technion-Israel Institue of Technology, Haifa3109601, Israel
- Laura and Isaac Perlmutter Metabolomics Center, B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa3109601, Israel
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Guo X, Zhang L, Xiao K. Effect of Kisspeptin-Type Neuropeptide on Locomotor Behavior and Muscle Physiology in the Sea Cucumber Apostichopus japonicus. Animals (Basel) 2023; 13:ani13040705. [PMID: 36830492 PMCID: PMC9951865 DOI: 10.3390/ani13040705] [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: 10/09/2022] [Revised: 12/05/2022] [Accepted: 12/20/2022] [Indexed: 02/19/2023] Open
Abstract
Kisspeptins are neuropeptides encoded by the kiss1 gene, and little is known about them outside the vertebrate lineage. Two kisspeptin-type neuropeptides (KPs) have been discovered in Apostichopus japonicus (AjK1 and AjK2), an edible sea cucumber, and have been linked to reproductive and metabolic regulation. In this study, we evaluated how KPs affected locomotor behavior in one control group and two treatment groups (AjK1 and AjK2). We discovered that AjK1 had a significant dose effect, primarily by shortening the stride length and duration of movement to reduce the sea cucumber movement distance, whereas AjK2 had little inhibitory effect at the same dose. The levels of phosphatidylethanolamine (PE), phosphatidylcholine (PC), uridine, glycine, and L-serine in the longitudinal muscle of A. japonicus treated with AjK1 differed significantly from those of the control, which may explain the observed changes in locomotor behavior. Treatment with AjK2 induced changes in aspartate levels. Our results imply that AjK1 is more likely than AjK2 to have a role in the regulation of A. japonicus locomotion.
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Affiliation(s)
- Xueying Guo
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
- CAS Engineering Laboratory for Marine Ranching, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Shandong Province Key Laboratory of Experimental Marine Biology, Qingdao 266071, China
| | - Libin Zhang
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
- CAS Engineering Laboratory for Marine Ranching, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Shandong Province Key Laboratory of Experimental Marine Biology, Qingdao 266071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Correspondence:
| | - Kang Xiao
- Beijing Yanshan Earth Critical Zone National Research Station, College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 101408, China
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Takakura M, Nagamachi S, Nishigawa T, Takahashi Y, Furuse M. Supplementation of L-Ornithine Could Increase Sleep-like Behavior in the Mouse Pups. Metabolites 2022; 12:metabo12121241. [PMID: 36557279 PMCID: PMC9785801 DOI: 10.3390/metabo12121241] [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: 10/29/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
Along the maternal-fetal-neonatal axis, one of the problems relating to the maternal-neonatal axis is infant sleep problems including nighttime crying. One possible solution could be to provide the newborn with sleep-promoting ingredients through breast milk or formula. So far, it has been reported that L-ornithine has a sleep-related effect. Therefore, we investigated the effect of dietary L-ornithine on maternal mouse plasma and milk L-ornithine levels in Experiment 1. In Experiment 2, a single dose of L-ornithine was applied to know the time-course changes in plasma, mammary gland and milk L-ornithine levels. Experiment 3 was conducted to confirm sleep behavior as well as changes in polyamine levels in milk. L-Ornithine levels in maternal plasma significantly increased by both dietary regimen and single oral administration in Experiments 1 and 2. Both L-ornithine treatments also increased its levels in milk, although not to a concentration as high as in plasma. In Experiment 3, the level of polyamines, which are metabolized from L-ornithine, did not significantly differ after L-ornithine administration. In sleep-like behavior observations, the average concentration of L-ornithine in milk did not increase the sleep-like behavior of mouse pups. However, more concentrated L-ornithine solutions can significantly increase sleep-like behavior. These results revealed that even if mothers ingested L-ornithine to increase L-ornithine levels in breast milk, it is difficult to promote sleep in newborns. Because it is difficult to raise L-ornithine in breast milk to sleep-inducing levels, L-ornithine added formula may partially improve infant sleep and has the potential for preventing infant sleep problems such as nighttime crying.
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Affiliation(s)
- Mayumi Takakura
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Satsuki Nagamachi
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Takuma Nishigawa
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | | | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
- Correspondence:
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Zhou L, Feng Y, Liu Y, He L, Zhou X, Yin Y. Serine Supplementation in the Diets of Late Gestating and Lactating Sows Improves Selenium Nutritional Status in Sows and Their Offspring. Biol Trace Elem Res 2022; 200:609-614. [PMID: 33686633 DOI: 10.1007/s12011-021-02661-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 02/28/2021] [Indexed: 02/07/2023]
Abstract
Serine can regulate selenoprotein expression, and dietary serine is correlated with the contents of plasma selenoprotein P (Sepp1) and milk selenium (Se) in lactating mothers. Based on this, we investigated the effects of serine supplementation in the diets of late gestating and lactating sows on Sepp1 and Se contents in sows and their offspring. A total of 72 sows were assigned to four groups. During the experiment, sows were fed either a basal diet or basal diets supplemented with three different levels of serine. The results showed that maternal dietary serine had no effect on the Se content in the serum of sows and their offspring, whereas it significantly increased the Se content in the liver of piglets at the age of 21 days. Maternal dietary serine significantly increased Sepp1 content, either in the serum of sows or that in their offspring at the ages of 3 days, 7 days, and 21 days. Additionally, maternal dietary serine significantly increased litter weight and the average body weight of piglets at the age of 11 days. Notably, a positive correlation was found between the average body weight of piglets at the age of 11 days and serum Sepp1 content in piglets, at the age of either 3 days or 7 days. In conclusion, maternal dietary serine supplementation could improve Se nutritional status in sows and their offspring. These beneficial changes may contribute to the higher body weight of the offspring.
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Affiliation(s)
- Lamei Zhou
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, China
| | - Yanzhong Feng
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China
| | - Yonghui Liu
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Liuqin He
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Xihong Zhou
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China.
| | - Yulong Yin
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, China
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
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5
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Lv D, Nong W, Guan Y. Edible ligand-metal-organic frameworks: Synthesis, structures, properties and applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214234] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Monteiro S, Nejad YS, Aucoin M. Perinatal diet and offspring anxiety: A scoping review. Transl Neurosci 2022; 13:275-290. [PMID: 36128579 PMCID: PMC9449687 DOI: 10.1515/tnsci-2022-0242] [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: 04/28/2022] [Revised: 08/04/2022] [Accepted: 08/12/2022] [Indexed: 11/15/2022] Open
Abstract
Health behaviors during pregnancy have an impact on the developing offspring. Dietary factors play a role in the development of mental illness: however, less is known about the impact of diet factors during pre-conception, gestation, and lactation on anxiety levels in offspring. This scoping review sought to systematically map the available research involving human and animal subjects to identify nutritional interventions which may have a harmful or protective effect, as well as identify gaps. Studies investigating an association between any perinatal diet pattern or diet constituent and offspring anxiety were included. The number of studies reporting an association with increased or decreased levels of anxiety were counted and presented in figures. A total of 55,914 results were identified as part of a larger scoping review, and 120 articles met the criteria for inclusion. A greater intake of phytochemicals and vitamins were associated with decreased offspring anxiety whereas maternal caloric restriction, protein restriction, reduced omega-3 consumption, and exposure to a high fat diet were associated with higher levels of offspring anxiety. Results were limited by a very large proportion of animal studies. High quality intervention studies involving human subjects are warranted to elucidate the precise dietary factors or constituents that modulate the risk of anxiety in offspring.
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Affiliation(s)
- Sasha Monteiro
- Department of Research and Clinical Epidemiology, Canadian College of Naturopathic Medicine, 1255 Sheppard Ave E, Toronto, ON, M2K 1E2, Canada
| | - Yousef Sadat Nejad
- Department of Research and Clinical Epidemiology, Canadian College of Naturopathic Medicine, 1255 Sheppard Ave E, Toronto, ON, M2K 1E2, Canada
| | - Monique Aucoin
- Department of Research and Clinical Epidemiology, Canadian College of Naturopathic Medicine, 1255 Sheppard Ave E, Toronto, ON, M2K 1E2, Canada
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Threadgold T, Greenwood EC, Van Wettere W. Identifying Suitable Supplements to Improve Piglet Survival during Farrowing and Lactation. Animals (Basel) 2021; 11:ani11102912. [PMID: 34679933 DOI: 10.3390/ani1110291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/28/2021] [Accepted: 10/01/2021] [Indexed: 05/22/2023] Open
Abstract
Piglet mortality during parturition and prior to weaning is an ongoing economic and welfare issue. This review collates the current literature describing the effects of specific dietary supplements on key parameters affecting piglet survival. Four distinct parameters were identified as having a direct impact on the survival of piglets to weaning: stillbirth rate, birth weight and weight variation, daily gain and weaning weight, and colostrum and milk quality. In the primary stage, relevant literature from the past 5 years was reviewed, followed by a secondary review of literature older than 5 years. The focal parameters benefitted from different supplements. For example, stillbirth may be reduced by supplements in late gestation, including forms of arginine, alpha-tocopherol-selenium, uridine, and Saccharomyces cerevisiae yeast culture, whereas average daily gain and weaning weight were related closely to supplements which improved colostrum and milk quality, most commonly fats and fatty acids in the form of n-3 polyunsaturated fatty acids, soybean oil, and fish oil, and polysaccharides, such as ginseng polysaccharide. Therefore, an effective supplement plan for piglet mortality reduction must consider the circumstances of the individual system and target one or more of the highlighted parameters.
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Affiliation(s)
- Tobias Threadgold
- School of Animal and Veterinary Sciences, Roseworthy Campus, The University of Adelaide, Mudla Wirra Road, Roseworthy, SA 5371, Australia
| | - Emma Catharine Greenwood
- School of Animal and Veterinary Sciences, Roseworthy Campus, The University of Adelaide, Mudla Wirra Road, Roseworthy, SA 5371, Australia
| | - William Van Wettere
- School of Animal and Veterinary Sciences, Roseworthy Campus, The University of Adelaide, Mudla Wirra Road, Roseworthy, SA 5371, Australia
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8
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Threadgold T, Greenwood EC, Van Wettere W. Identifying Suitable Supplements to Improve Piglet Survival during Farrowing and Lactation. Animals (Basel) 2021; 11:ani11102912. [PMID: 34679933 PMCID: PMC8532790 DOI: 10.3390/ani11102912] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/28/2021] [Accepted: 10/01/2021] [Indexed: 11/16/2022] Open
Abstract
Piglet mortality during parturition and prior to weaning is an ongoing economic and welfare issue. This review collates the current literature describing the effects of specific dietary supplements on key parameters affecting piglet survival. Four distinct parameters were identified as having a direct impact on the survival of piglets to weaning: stillbirth rate, birth weight and weight variation, daily gain and weaning weight, and colostrum and milk quality. In the primary stage, relevant literature from the past 5 years was reviewed, followed by a secondary review of literature older than 5 years. The focal parameters benefitted from different supplements. For example, stillbirth may be reduced by supplements in late gestation, including forms of arginine, alpha-tocopherol-selenium, uridine, and Saccharomyces cerevisiae yeast culture, whereas average daily gain and weaning weight were related closely to supplements which improved colostrum and milk quality, most commonly fats and fatty acids in the form of n-3 polyunsaturated fatty acids, soybean oil, and fish oil, and polysaccharides, such as ginseng polysaccharide. Therefore, an effective supplement plan for piglet mortality reduction must consider the circumstances of the individual system and target one or more of the highlighted parameters.
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9
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He L, Liu Y, Long J, Zhou X, Zeng S, Li T, Yin Y. Maternal serine supply from late pregnancy to lactation improves offspring performance through modulation of metabolic pathways. Food Funct 2021; 11:8089-8098. [PMID: 32856649 DOI: 10.1039/d0fo01594f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Maternal dietary serine affects free amino acid content in milk and the antioxidant ability of progeny. However, whether maternal dietary serine has any effects on offspring performance in pigs and related metabolic consequences remains unknown. This study was conducted to investigate the effects of different levels of maternal dietary serine from late pregnancy to lactation on sow reproductive performance and offspring performance, and on the metabolome of milk and the serum of sows and their offspring. The results showed that sows fed a diet supplemented with 25% serine of the basal diet (l-Ser) had a higher litter weight, and higher average piglet weight at birth and aged 21 days when compared with sows fed the basal diet (CON). We found a large number of metabolites in both colostrum and milk that differed significantly between sows in the CON and l-Ser groups. Additionally, twenty metabolites differed in the serum of piglets aged 21 days between the CON and l-Ser groups. Most of these metabolites are involved in purine and pyrimidine metabolism, glutathione and taurine metabolism, as well as phospholipid and sphingolipid metabolism, which may contribute to the growth-promoting effects of serine on offspring. Our results imply that maternal serine has the potential to improve offspring outcomes.
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Affiliation(s)
- Liuqin He
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, College of Life Sciences, Hunan Normal University, Changsha 410081, China and CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Changsha 410125, China. and Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Changsha 410125, China.
| | - Yonghui Liu
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Jing Long
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Xihong Zhou
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Changsha 410125, China. and Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Changsha 410125, China.
| | - Sijing Zeng
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, College of Life Sciences, Hunan Normal University, Changsha 410081, China and CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Changsha 410125, China.
| | - Tiejun Li
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Changsha 410125, China. and Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Changsha 410125, China.
| | - Yulong Yin
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, College of Life Sciences, Hunan Normal University, Changsha 410081, China and CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Changsha 410125, China. and Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Changsha 410125, China.
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10
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Spence JP, Lai D, Reiter JL, Cao S, Bell RL, Williams KE, Liang T. Epigenetic changes on rat chromosome 4 contribute to disparate alcohol drinking behavior in alcohol-preferring and -nonpreferring rats. Alcohol 2020; 89:103-112. [PMID: 32798691 PMCID: PMC7722131 DOI: 10.1016/j.alcohol.2020.08.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 07/24/2020] [Accepted: 08/09/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND Paternal alcohol abuse is a well-recognized risk factor for the development of an alcohol use disorder (AUD). In addition to genetic and environmental risk factors, heritable epigenetic factors also have been proposed to play a key role in the development of AUD. However, it is not clear whether epigenetic factors contribute to the genetic inheritance in families affected by AUD. We used reciprocal crosses of the alcohol-preferring (P) and -nonpreferring (NP) rat lines to test whether epigenetic factors also impacted alcohol drinking in up to two generations of offspring. METHODS F1 offspring derived by reciprocal breeding of P and NP rats were tested for differences in alcohol consumption using a free-choice protocol of 10% ethanol, 20% ethanol, and water that were available concurrently. In a separate experiment, an F2 population was tested for alcohol consumption not only due to genetic differences. These rats were generated from inbred P (iP) and iNP rat lines that were reciprocally bred to produce genetically identical F1 offspring that remained alcohol-naïve. Intercrosses of the F1 generation animals produced the F2 generation. Alcohol consumption was then assessed in the F2 generation using a standard two-bottle choice protocol, and was analyzed using genome-wide linkage analysis. Alcohol consumption measures were also analyzed for sex differences. RESULTS Average alcohol consumption was higher in the F1 offspring of P vs. NP sires and in the F2 offspring of F0 iP vs. iNP grandsires. Linkage analyses showed the maximum LOD scores for alcohol consumption in both male and female offspring were on chromosome 4 (Chr 4). The LOD score for both sexes considered together was higher when the grandsire was iP vs. iNP (5.0 vs. 3.35, respectively). Furthermore, the F2 population displayed enhanced alcohol consumption when the P alleles from the F0 sire were present. CONCLUSIONS These results demonstrate that epigenetic and/or non-genetic factors mapping to rat chromosome 4 contribute to a transgenerational paternal effect on alcohol consumption in the P and NP rat model of AUD.
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Affiliation(s)
- John Paul Spence
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, 46202, United States
| | - Dongbing Lai
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, 46202, United States
| | - Jill L Reiter
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, 46202, United States
| | - Sha Cao
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, IN, 46202, United States
| | - Richard L Bell
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, 46202, United States
| | - Kent E Williams
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, United States
| | - Tiebing Liang
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, United States.
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11
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Aso K, Nishigawa T, Nagamachi S, Takakura M, Furuse M. Orally administrated D-arginine exhibits higher enrichment in the brain and milk than L-arginine in ICR mice. J Vet Med Sci 2020; 82:307-313. [PMID: 31932535 PMCID: PMC7118480 DOI: 10.1292/jvms.19-0630] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
D-Amino acids exert various physiological functions and are widely present in animals.
However, they are absorbed to a lesser extent than L-amino acids. Little is known about
D-arginine (D-Arg); however, its isomer L-Arg serves as a substrate for several
metabolites and exhibits various functions including promotion of growth hormone
secretion. Milk is the only nutrient source for infants; it plays an important role during
their initial growth and brain development. No studies have evaluated the availability of
D-Arg in the brain and milk in mammals. Here, we have studied the differential
availability of orally administered D- and L-Arg in the brain and milk using ICR mice. Our
results revealed that without D-Arg administration, D-Arg was undetectable in both plasma
and brain samples. However, the plasma D-Arg was about twice the concentration of L-Arg
post administration of the same. In the cerebral cortex and hypothalamus, L-Arg
concentration remained almost constant for over period of 90 min after L-Arg treatment.
Nevertheless, the L-Arg concentration decreased after D-Arg administration with time
compared to the case post L-Arg administration. Contrastingly, D-Arg level sharply
increased at both the brain regions with time after D-Arg treatment. Furthermore, L-Arg
concentration in the milk hardly increased after L-Arg administration. Interestingly, oral
administration of D-Arg showed efficient enrichment of D-Arg in milk, compared with L-Arg.
Thus, our results imply that D-Arg may be available for brain development and infant
nourishment through milk as an oral drug and/or nutrient supplement.
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Affiliation(s)
- Kenta Aso
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Takuma Nishigawa
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Satsuki Nagamachi
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Mayumi Takakura
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
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12
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Hamada M, Ihara T, Furuse M. Differences in free amino acid concentrations in milk between Wistar and Wistar Kyoto rats. J Vet Med Sci 2019; 81:838-845. [PMID: 30982807 PMCID: PMC6612506 DOI: 10.1292/jvms.19-0064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Wistar Kyoto (WKY) rats, an animal depression model, display abnormal behaviors such as
hypoactivity and depression-like behavior compared with Wistar (WIS) rats as a control. A
previous study confirmed a dysfunction of amino acid metabolism in the brain of WKY rats
compared with that of WIS rats. At the neonatal stage, free amino acids in milk are
important nutrients because they act as immediate nutrients for offspring and may affect
later health and behavior of the offspring. Therefore, the present study aimed to
investigate free amino acid concentrations in milk and the relationships between free
amino acid concentrations in milk and plasma in WIS and WKY rats. The concentrations of
ten of the determined free amino acids in milk were significantly higher, but only
L-methionine was significantly lower, in WKY rats. Six free amino acids had significantly
higher concentrations in colostrum and two free amino acids had higher concentrations in
matured milk. Free amino acid concentrations in plasma changed by both genetic background
and lactation stage; however, the patterns of change in most free amino acid
concentrations except for taurine in plasma were similar between WIS and WKY rats. The
transport ratio of free amino acids from plasma to milk was not similar among the free
amino acids tested, and each free amino acid was influenced by the genetic background
and/or the type of milk.
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Affiliation(s)
- Mizuki Hamada
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Tsubasa Ihara
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Mitsuhiro Furuse
- Laboratory of Regulation in Metabolism and Behavior, Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
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Cao G, Tao F, Xin L, Li Z, Zhou X. Effects of maternal serine supplementation on high-fat diet-induced oxidative stress and epigenetic changes in promoters of glutathione synthesis-related genes in offspring. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.05.067] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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