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Zeng X, Fan X, Yu H, Cai S, Zhou L, Wu H, Zhang Z, Quan S, Li S, Wang X, Xue B, Liu L, Qiao S, Zeng X. Nervonic acid triggered ovarian inflammation by inducing mitochondrial oxidative stress to activate NLRP3/ IL-1β pathway. J Adv Res 2024:S2090-1232(24)00371-0. [PMID: 39181200 DOI: 10.1016/j.jare.2024.08.028] [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: 05/26/2024] [Revised: 08/20/2024] [Accepted: 08/21/2024] [Indexed: 08/27/2024] Open
Abstract
INTRODUCTION Metabolic syndrome is a serious public health concern across the globe. However, the typical metabolites and mechanisms underlying the decreased fertility related to metabolic syndrome is still elusive. OBJECTIVES The aim of the present study was to explore the typical metabolites and mechanisms underlying the decreased fertility related with metabolic syndrome. METHODS Utilizing metabolomics, a comparative analysis was conducted on fatty acid compositions in various tissues of sows with high and low reproductive performance. Additionally, serum fatty acid compositions in a metabolic syndrome model (obese mice) induced by a high-fat diet (HFD) were investigated to elucidate the lipid metabolites associated with metabolic syndrome. Furthermore, the impact of nervonic acid (NA) on ovarian function was examined using rodent animal models (rats and mice). Through biological techniques such as transcriptomics, CUT&Tag, and analysis of post-translational protein modifications, the molecular mechanisms underlying NA mediated ovarian inflammation were further elucidated based on models utilizing ovarian granulosa cells from pigs, humans, and mice. Finally, validation was performed on ovaries from patients diagnosed with polycystic ovary syndrome. RESULTS In vitro, targeted serum lipidomic analysis revealed that sows with low embryo survival rates exhibited abnormal lipid metabolism characterized by abnormal accumulation of NA in the liver, ovary, and adipose tissue. Additionally, elevated NA levels trigger ovarian inflammation to cause ovarian dysfunction in both sows and rats. Mechanistically, NA induce mitochondrial oxidative stress through inhibiting respiratory chain proteins CYTB and NDFUB8 to activate NLRP3 inflammasome, which triggers procaspase-1 into active caspase-1, and convert the cytokine precursors pro-IL-1β into biologically active IL-1β in ovarian granulosa cells. Notably, we evidenced that NA promotes IL-1β activities by increasing H3K9ac modification level of IL-1β promoter regions and regulating the expression of the transcription factor AP-1. Finally, we found that the decreased expression of CerS2 in ovaries and the increased level of chemokine CXCL14 may be the cause of abnormal NA accumulation. Surprisingly, individuals with polycystic ovary syndrome, obesity, non-alcoholic fatty liver or gestational diabetes mellitus exhibit a high level of serum NA. CONCLUSION Collectively, our current study suggests that NA is a typical metabolite of metabolic syndrome, which strongly influences the ovarian function and embryo survival and also provides that interfering with mitochondrial ROS production is a potential strong strategy for target solving abnormal NA accumulation.
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Affiliation(s)
- Xiangzhou Zeng
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR China; Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR China
| | - Xinyin Fan
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR China; Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR China
| | - Haitao Yu
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR China; Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR China
| | - Shuang Cai
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR China; Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR China
| | - Liangrui Zhou
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100193, PR China
| | - Huanwen Wu
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100193, PR China
| | - Zhiwen Zhang
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100193, PR China
| | - Shuang Quan
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR China; Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR China
| | - Siyu Li
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR China; Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR China
| | - Xinyu Wang
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR China; Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR China
| | - Bangxin Xue
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR China; Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR China
| | - Lu Liu
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR China; Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR China
| | - Shiyan Qiao
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR China; Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR China
| | - Xiangfang Zeng
- State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agricultural University, Beijing 100193, PR China; Beijing Bio-Feed Additives Key Laboratory, Beijing 100193, PR China.
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Gao Q, Ma Y, Qu X, Zheng X. Risk factors in patients with acute fatty liver of pregnancy: the role of abortion, total bilirubin and serum creatinine. Arch Gynecol Obstet 2024; 310:153-159. [PMID: 37910196 DOI: 10.1007/s00404-023-07234-y] [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: 05/10/2023] [Accepted: 09/11/2023] [Indexed: 11/03/2023]
Abstract
PURPOSE Acute fatty liver of pregnancy (AFLP) is a relatively rare obstetric emergency usually accompanied by fatal complications. Numerous studies have evaluated the potential risk factors for outcomes in patients with AFLP. But rare studies evaluated the predictive ability, sensitivity and specificity of the risk factors for maternal mortality. Thus, in this multicenter research, we aimed to further prove the predictive ability of the MELD model, investigated the prognostic value of history of abortion (HOA), total bilirubin (TBiL) and serum creatinine (SCr) and explored new predictive models for predicting maternal mortality in patients with AFLP. METHODS We performed a retrospective cohort study of 133 hospitalised patients with AFLP in four Chinese tertiary hospitals between January 2009 and April 2014. RESULTS The maximal AUC amongst three independent risk factors for maternal death was TBiL with a cut-off point of > 131.9 μmol/L, showing a sensitivity of 100% and a specificity of 55.9%. The threshold of the RF model for maternal mortality was - 1.629 and the AUC was 0.876, with an 81.8% sensitivity and an 80.2% specificity. The AUC for MELD model to predict maternal death was 0.894, and the best cut-off point was 28 with a sensitivity of 81.8% and a specificity of 84.7%. CONCLUSIONS Both the MELD model and the RF model showed good efficacy in predicting the maternal mortality in patients with ALFP (AUC = 0.894 and 0.876, respectively).
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Affiliation(s)
- Qiang Gao
- Department of Critical Care Medicine, Dazhou Central Hospital, NO.56 Nanyuemiao Street, Tongchuan District, Dazhou, 635000, Sichuan, China
| | - Yujie Ma
- Department of Cardiovascular Medicine, Dachuan People's Hospital, Dazhou, Sichuan, China
| | - Xin Qu
- Department of Neurosurgery, Xuan Wu Hospital, Capital Medical University, Beijing, China
| | - Xiangde Zheng
- Department of Critical Care Medicine, Dazhou Central Hospital, NO.56 Nanyuemiao Street, Tongchuan District, Dazhou, 635000, Sichuan, China.
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Jalil S, Elfeki MA, Kiefer MK, Kuo YF, Singal AK. Waitlist and posttransplant outcomes of pregnancy-related acute liver failure in the United States. Liver Transpl 2024; 30:573-581. [PMID: 38108820 DOI: 10.1097/lvt.0000000000000319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 12/08/2023] [Indexed: 12/19/2023]
Abstract
Data on the liver transplant (LT) outcomes of women with acute liver failure (ALF) due to liver diseases unique to pregnancy (P-ALF) are limited. Using United Network of Organ Sharing (UNOS) data (1987-2021), we analyzed waitlist and post-LT outcomes of ALF in women of childbearing age comparing P-ALF versus ALF due to liver diseases not unique to pregnancy. Baseline characteristics were compared between groups at the time of listing for LT. Of 3542 females aged 16-43 years and listed for LT for ALF, 84 (2%) listed for P-ALF were less likely to be Black (11 vs. 21%, p =0.033), have lower international normalized ratio (2.74 vs. 4.53 p <0.002), but more likely to have respiratory failure (56% vs. 41%, p <0.005), be on pressors (58% vs. 43%, p <0.005), and require dialysis (23% vs. 10%, p <0.001). The cumulative 90-day waitlist mortality (WLM) was lower in P-ALF vs. ALF due to liver diseases not unique to pregnancy (7.4 vs. 16.6%, p <0.001). Posttransplant survival rates at 5 years were similar (82% vs. 79%, p =0.89). In a Fine and Gray regression model controlled for listing year and Model for End-Stage Liver Disease score, 90-day WLM was lower in P-ALF with a sub-HR of 0.42 (95% CI: 0.19-0.94, p =0.035). Of 84 women with P-ALF and listed for LT, 45 listed for hemolysis-elevated liver enzymes-low platelets (HELLP) versus 39 for acute fatty liver of pregnancy had higher 90-day WLM (19.3% vs. 5.7% p <0.005). The 90-day WLM was about 10-fold higher in HELLP versus acute fatty liver of pregnancy with a sub-HR of 9.97 (95% CI: 1.64-60.55, p =0.013). In this UNOS database analysis of ALF among women of childbearing age, the waitlist outcome is better in women with P-ALF compared to women with ALF due to liver diseases not unique to pregnancy. Among women with P-ALF, the 90-day WLM is worse for HELLP versus acute fatty liver of pregnancy. Further studies are needed to improve the management of HELLP and prevent the development of ALF in this subgroup population.
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Affiliation(s)
- Sajid Jalil
- Department of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Mohamed A Elfeki
- Department of Medicine, University of South Dakota Sanford School of Medicine, Sioux Falls, South Dakota, USA
- Department of Medicine, Avera McKennan University Hospital and Transplant Institute, Sioux Falls, Sioux Falls, SD, USA
| | - Miranda K Kiefer
- Department of Medicine, Maternal Fetal Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Yong-Fang Kuo
- Department of Biostatistics, University of Texas Medical Branch, Galveston, Texas, USA
| | - Ashwani K Singal
- Department of Medicine, University of Louisville, Louisville, KY, USA
- Department of Medicine, Trager Transplant Center, Jewish Hospital, Louisville, Kentucky, USA
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Alexander V, Benjamin SJ, Subramani K, Sathyendra S, Goel A. Acute liver failure in pregnancy. Indian J Gastroenterol 2024; 43:325-337. [PMID: 38691240 DOI: 10.1007/s12664-024-01571-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 03/09/2024] [Indexed: 05/03/2024]
Abstract
Liver function abnormalities are noted in a minority of pregnancies with multiple causes for the same. A small proportion of these develop severe liver injury and progress to acute liver failure (ALF). There is a discrete set of etiology for ALF in pregnancy and comprehensive understanding will help in urgent evaluation. Certain diseases such as acute fatty liver of pregnancy, hemolysis, elevated liver enzyme, low platelet (HELLP) syndrome and pre-eclampsia are secondary to pregnant state and can present as ALF. Quick and targeted evaluation with urgent institution of etiology-specific management, especially urgent delivery in patients with pregnancy-associated liver diseases, is the key to avoiding maternal deaths. Pregnancy, as also the fetal life, imparts a further layer of complication in assessment, prognosis and management of these sick patients with ALF. Optimal management often requires a multidisciplinary approach in a well-equipped centre. In this review, we discuss evaluation, assessment and management of pregnant patients with ALF, focussing on approach to pregnancy-associated liver diseases.
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Affiliation(s)
- Vijay Alexander
- Department of Hepatology, Christian Medical College, Vellore 632 004, India
| | - Santosh J Benjamin
- Department of Obstetrics and Gynaecology, Christian Medical College, Vellore 632 004, India
| | - Kandasamy Subramani
- Division of Critical Care, Christian Medical College, Vellore 632 004, India
| | - Sowmya Sathyendra
- Department of Obstetric Medicine, Christian Medical College, Vellore 632 004, India
| | - Ashish Goel
- Department of Hepatology, Christian Medical College, Vellore 632 004, India.
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Brügge M, Pecks U, Iannaccone A, Palz-Fleige M, Stepan H, Tauscher A. [Acute Fatty Liver of Pregnancy - Case Series]. Z Geburtshilfe Neonatol 2023; 227:466-473. [PMID: 37490932 DOI: 10.1055/a-2096-6230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
With a prevalence of 0,01-0,03%, acute fatty liver in pregnancy (AFLP) is a rare and dangerous complication of pregnancy and is difficult to distinguish from other, sometimes more common, pregnancy diseases such as HELLP syndrome, aHUS and TTP because of its mostly non-specific symptoms. Due to its rarity, AFLP is often not obvious to the obstetrician as a possible differential diagnosis. Yet early diagnosis and the fastest possible delivery is the only causal therapy and is important for the mortality rate. In the present manuscript, the pathophysiology, diagnosis and therapy of acute fatty liver in pregnancy are highlighted for the clinical routine based on case descriptions from three university hospitals, and reference is made to possible findings that are helpful in establishing the diagnosis. The angiogenic preeclampsia marker sFlt-1 plays a role and provides new opportunities to consider pathophysiological approaches.
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Affiliation(s)
- Martina Brügge
- Klinik für Gynäkologie und Geburtshilfe, Universitätsklinikum Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - Ulrich Pecks
- Klinik für Gynäkologie und Geburtshilfe, Universitätsklinikum Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - Antonella Iannaccone
- Klinik für Gynäkologie und Geburtshilfe, Universitätsklinikum Essen, Essen, Germany
| | - Monika Palz-Fleige
- Klinik für Gynäkologie und Geburtshilfe, St.-Johannes-Hospital Dortmund, Dortmund, Germany
| | - Holger Stepan
- Geburtsmedizin, Universitätsfrauenklinik Leipzig, Leipzig, Germany
| | - Anne Tauscher
- Klinik für Gynäkologie und Geburtshilfe, Universitätsklinikum Leipzig, Leipzig, Germany
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Williamson C, Nana M, Poon L, Kupcinskas L, Painter R, Taliani G, Heneghan M, Marschall HU, Beuers U. EASL Clinical Practice Guidelines on the management of liver diseases in pregnancy. J Hepatol 2023; 79:768-828. [PMID: 37394016 DOI: 10.1016/j.jhep.2023.03.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 03/10/2023] [Indexed: 07/04/2023]
Abstract
Liver diseases in pregnancy comprise both gestational liver disorders and acute and chronic hepatic disorders occurring coincidentally in pregnancy. Whether related to pregnancy or pre-existing, liver diseases in pregnancy are associated with a significant risk of maternal and fetal morbidity and mortality. Thus, the European Association for the Study of Liver Disease invited a panel of experts to develop clinical practice guidelines aimed at providing recommendations, based on the best available evidence, for the management of liver disease in pregnancy for hepatologists, gastroenterologists, obstetric physicians, general physicians, obstetricians, specialists in training and other healthcare professionals who provide care for this patient population.
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Gao H, Li Y, Xu J, Zuo X, Yue T, Xu H, Sun J, Wang M, Ye T, Yu Y, Yao Y. Saccharomyces boulardii protects against murine experimental colitis by reshaping the gut microbiome and its metabolic profile. Front Microbiol 2023; 14:1204122. [PMID: 37492256 PMCID: PMC10363984 DOI: 10.3389/fmicb.2023.1204122] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/21/2023] [Indexed: 07/27/2023] Open
Abstract
Introduction Saccharomyces boulardii (S. boulardii) has shown clinical beneficial effect in inflammatory bowel diseases recently. However, the underlying mechanisms remain incompletely understood. The aim of present study was to tested whether S. boulardii targets gut microbiota to protect against the development of experimental colitis in mice. Methods Female C57BL/6 mice were gavaged with S. boulardii for 3 weeks before being challenged with dextran sulphate sodium to induce ulcerative colitis. Bodyweight, diarrhea severity, intestinal permeability, colonic histopathology, colonic inflammatory status, and epithelial cell death of mice were examined. The fecal microbiota and its metabolomic profiles were detected by 16S rDNA sequencing and UPLC-MS, respectively. Results and Discussion Supplementation with S. boulardii significantly prevented weight loss and colon shortening, lowered colonic inflammation, ameliorated epithelial injury, and enhanced the intestinal barrier integrity in colitis mice. By inhibiting the abundance of pathogenic bacteria and increasing the probiotics abundance, S. boulardii improved the microbial diversity and restored the microbiota dysbiosis. Moreover, it also modulated microbial metabolome and altered the relative contents of metabolites involving amino acids, lipids, energy and vitamin metabolisms. These yeast-driven shifts in gut flora and metabolites are were associated with each other and with the inflammation profile in colitis. Collectively, S. boulardii exerts protective effects on colitis in mice by reshaping gut microbiome and its metabolic profile, indicating it as a promising therapeutic avenue.
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Affiliation(s)
- Hui Gao
- Department of Clinical Nutrition, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yinzheng Li
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiqu Xu
- Department of Nutriology, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, China
- Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Xuezhi Zuo
- Department of Clinical Nutrition, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tiantian Yue
- Department of Clinical Nutrition, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huzi Xu
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jie Sun
- Department of Clinical Nutrition, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Meng Wang
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ting Ye
- Department of Clinical Nutrition, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Yu
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Yao
- Department of Clinical Nutrition, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Terrault NA, Williamson C. Pregnancy-Associated Liver Diseases. Gastroenterology 2022; 163:97-117.e1. [PMID: 35276220 DOI: 10.1053/j.gastro.2022.01.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 01/21/2022] [Accepted: 01/26/2022] [Indexed: 12/14/2022]
Abstract
The liver disorders unique to pregnancy include hyperemesis gravidarum, intrahepatic cholestasis of pregnancy, acute fatty liver of pregnancy, and preeclampsia-associated hepatic impairment, specifically hemolysis, elevated liver enzymes, and low platelet count syndrome (HELLP). Their importance lies in the significant maternal and fetal/neonatal morbidity and mortality. Expeditious diagnosis and clinical evaluation is critical to ensure timely, appropriate care and minimize risks to the pregnant woman and her fetus/baby. A multidisciplinary approach is essential, including midwives, maternal-fetal-medicine specialists, anesthetists, neonatologists, and hepatologists.
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Affiliation(s)
- Norah A Terrault
- Gastrointestinal and Liver Disease Division, University of Southern California, Los Angeles, California, USA.
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Mitochondrial Dysfunction and Acute Fatty Liver of Pregnancy. Int J Mol Sci 2022; 23:ijms23073595. [PMID: 35408956 PMCID: PMC8999031 DOI: 10.3390/ijms23073595] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 01/27/2023] Open
Abstract
The liver is one of the richest organs in mitochondria, serving as a hub for key metabolic pathways such as β-oxidation, the tricarboxylic acid (TCA) cycle, ketogenesis, respiratory activity, and adenosine triphosphate (ATP) synthesis, all of which provide metabolic energy for the entire body. Mitochondrial dysfunction has been linked to subcellular organelle dysfunction in liver diseases, particularly fatty liver disease. Acute fatty liver of pregnancy (AFLP) is a life-threatening liver disorder unique to pregnancy, which can result in serious maternal and fetal complications, including death. Pregnant mothers with this disease require early detection, prompt delivery, and supportive maternal care. AFLP was considered a mysterious illness and though its pathogenesis has not been fully elucidated, molecular research over the past two decades has linked AFLP to mitochondrial dysfunction and defects in fetal fatty-acid oxidation (FAO). Due to deficient placental and fetal FAO, harmful 3-hydroxy fatty acid metabolites accumulate in the maternal circulation, causing oxidative stress and microvesicular fatty infiltration of the liver, resulting in AFLP. In this review, we provide an overview of AFLP and mitochondrial FAO followed by discussion of how altered mitochondrial function plays an important role in the pathogenesis of AFLP.
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Niikura M, Fukutomi T, Mineo S, Mitobe J, Kobayashi F. The association between acute fatty liver disease and nitric oxide during malaria in pregnancy. Malar J 2021; 20:462. [PMID: 34906158 PMCID: PMC8670279 DOI: 10.1186/s12936-021-03999-2] [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: 09/28/2021] [Accepted: 12/01/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Liver disease is a common feature of malaria in pregnancy, but its pathogenesis remains unclear. METHODS To understand the pathogenesis of liver disease during malaria in pregnancy, comparative proteomic analysis of the liver in a mouse model of malaria in pregnancy was performed. RESULTS Decreased levels of mitochondrial and peroxisomal proteins were observed in the livers of pregnant mice infected with the lethal rodent malaria parasite Plasmodium berghei strain NK65. By contrast, increased levels of perilipin-2, amyloid A-1, and interferon (IFN)-γ signalling pathway-related proteins were observed in the livers of infected pregnant mice, suggesting that IFN-γ signalling may contribute to the development of liver disease during malaria in pregnancy. IFN-γ signalling is a potential trigger of inducible nitric oxide synthase (iNOS) expression. Liver disease associated with microvesicular fatty infiltration and elevated liver enzymes in pregnant wild-type mice infected with malaria parasites was improved by iNOS deficiency. CONCLUSIONS In this study, a causative role of iNOS in liver disease associated with microvesicular fatty infiltration during malaria in pregnancy was demonstrated. These findings provide important insight for understanding the role of iNOS-mediated metabolic responses and the pathogenesis of high-risk liver diseases in pregnancy, such as acute fatty liver.
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Affiliation(s)
- Mamoru Niikura
- Department of Infectious Diseases, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo, 181-8611, Japan.
| | - Toshiyuki Fukutomi
- Department of Pharmacology and Toxicology, Kyorin University School of Medicine, Tokyo, Japan
| | - Shoichiro Mineo
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, 160-8402, Japan
| | - Jiro Mitobe
- Department of Infectious Diseases, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo, 181-8611, Japan
| | - Fumie Kobayashi
- Department of Environmental Science, School of Life and Environmental Science, Azabu University, Kanagawa, 252-5201, Japan
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Taggarsi DA, Krishna B. Placenta in the Critically Ill Mother. Indian J Crit Care Med 2021; 25:S200-S205. [PMID: 35615604 PMCID: PMC9108785 DOI: 10.5005/jp-journals-10071-24024] [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] [Indexed: 11/23/2022] Open
Abstract
The placenta is a temporary, multifunctional organ composed of both maternal and fetal components. It maintains homeostasis to ensure the growth of the fetus and well-being of the mother. Abnormalities in placental development have been known to be responsible for several disorders of pregnancy. Conditions coincident with pregnancy can upset the homeostasis and result in critical illness, which can greatly impact placental function and in turn affect the fetus. Decreased blood flow, acidemia, hypercarbia, and hypoxia seen in critically ill pregnant mothers can result in fetal death. Understanding the physiological changes and functioning of the maternal-fetal-placental unit will aid in better management of critically ill mothers. How to cite this article Taggarsi DA, Krishna B. Placenta in the Critically Ill Mother. Indian J Crit Care Med 2021;25(Suppl 3):S200-S205.
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Affiliation(s)
- Dipali Anand Taggarsi
- Department of Critical Care Medicine, St John's Medical College and Hospital, Bengaluru, Karnataka, India
| | - Bhuvana Krishna
- Department of Critical Care Medicine, St John's Medical College and Hospital, Bengaluru, Karnataka, India
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Neuman RI, Saleh L, Verdonk K, van den Meiracker AH, Russcher H, Metselaar HJ, Visser W, Danser AHJ. Accurate Prediction of Total PlGF (Placental Growth Factor) From Free PlGF and sFlt-1 (Soluble Fms-Like Tyrosine Kinase-1): Evidence for Markedly Elevated PlGF Levels in Women With Acute Fatty Liver of Pregnancy. Hypertension 2021; 78:489-498. [PMID: 34176292 PMCID: PMC8260338 DOI: 10.1161/hypertensionaha.121.17258] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Acute fatty liver of pregnancy (AFLP) is characterized by elevated circulating sFlt-1 (soluble Fms-like tyrosine kinase-1), although the free circulating levels of its ligand, PlGF (placental growth factor) are not decreased. Here, we hypothesized that women with AFLP exhibit elevated PlGF production in comparison to women with preeclampsia or hemolysis elevated liver enzymes and low platelet count syndrome. Making use of the well-known mathematical formulas describing drug-receptor interactions, we established that serum total PlGF could be accurately predicted from sFlt-1 and free PlGF levels (n=42; mean calculated KD of 50 pmol/L), yielding similar values as the previously published method of thermal dissociation of the sFlt-1-PlGF complexes (r=0.94, P<0.0001). We found that median levels of free PlGF were significantly lower in women with preeclampsia (n=13; 117pg/mL) or hemolysis elevated liver enzymes and low platelet count syndrome (n=12; 59 pg/mL) compared with women without preeclampsia (n=11; 349pg/mL, P<0.0001). In contrast, median total PlGF did not differ between women with no preeclampsia, preeclampsia, and hemolysis elevated liver enzymes and low platelet count syndrome (354 versus 435 versus 344pg/mL), whereas it was markedly elevated in AFLP compared with all groups (2054 pg/mL, P<0.0001). Furthermore, in AFLP, both sFlt-1 and total PlGF declined rapidly postdelivery, with significantly higher predelivery total PlGF (n=12; median, 2054 pg/mL) than postpartum levels (n=14; median, 163pg/mL, P<0.0001), suggesting that in AFLP, PlGF is largely placenta-derived. Collectively, our findings indicate that like sFlt-1, PlGF production is significantly upregulated in AFLP, mainly originating from the placenta. Importantly, total PlGF can now be easily calculated from already available free PlGF and sFlt-1 levels, allowing subsequent evaluation of other groups in whom PlGF is altered.
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Affiliation(s)
- Rugina I Neuman
- Division of Pharmacology and Vascular Medicine, Department of Internal Medicine (R.I.N., L.S., K.V., A.H.v.d.M., W.V., A.H.J.D.), Erasmus MC University Hospital, Rotterdam, the Netherlands.,Department of Gynecology and Obstetrics (R.I.N., W.V.), Erasmus MC University Hospital, Rotterdam, the Netherlands
| | - Langeza Saleh
- Division of Pharmacology and Vascular Medicine, Department of Internal Medicine (R.I.N., L.S., K.V., A.H.v.d.M., W.V., A.H.J.D.), Erasmus MC University Hospital, Rotterdam, the Netherlands
| | - Koen Verdonk
- Division of Pharmacology and Vascular Medicine, Department of Internal Medicine (R.I.N., L.S., K.V., A.H.v.d.M., W.V., A.H.J.D.), Erasmus MC University Hospital, Rotterdam, the Netherlands
| | - Anton H van den Meiracker
- Division of Pharmacology and Vascular Medicine, Department of Internal Medicine (R.I.N., L.S., K.V., A.H.v.d.M., W.V., A.H.J.D.), Erasmus MC University Hospital, Rotterdam, the Netherlands
| | - Henk Russcher
- Department of Clinical Chemistry (H.R.), Erasmus MC University Hospital, Rotterdam, the Netherlands
| | - Herold J Metselaar
- Department of Gastroenterology & Hepatology (H.J.M.), Erasmus MC University Hospital, Rotterdam, the Netherlands
| | - Willy Visser
- Division of Pharmacology and Vascular Medicine, Department of Internal Medicine (R.I.N., L.S., K.V., A.H.v.d.M., W.V., A.H.J.D.), Erasmus MC University Hospital, Rotterdam, the Netherlands.,Department of Gynecology and Obstetrics (R.I.N., W.V.), Erasmus MC University Hospital, Rotterdam, the Netherlands
| | - A H Jan Danser
- Division of Pharmacology and Vascular Medicine, Department of Internal Medicine (R.I.N., L.S., K.V., A.H.v.d.M., W.V., A.H.J.D.), Erasmus MC University Hospital, Rotterdam, the Netherlands
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Acute Fatty Liver Disease of Pregnancy in the Second Trimester. Case Rep Crit Care 2020; 2020:6705784. [PMID: 32607259 PMCID: PMC7315284 DOI: 10.1155/2020/6705784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 05/27/2020] [Accepted: 06/05/2020] [Indexed: 12/11/2022] Open
Abstract
Acute fatty liver of pregnancy (AFLP) is a rare disorder that typically presents in the third trimester. We report a case of a 21-year-old woman with a history of intrauterine fetal demise at 19 weeks' gestation who developed fulminant liver failure 1 week after the fetal demise. She was diagnosed with AFLP as per the Swansea criteria. An orthotopic liver transplant was attempted but was unsuccessful. AFLP usually presents between the 30th to 38th weeks of gestation. However, it can occur in the postpartum period after only 19 weeks of gestation as highlighted in our case.
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14
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Gao Q, Ma Y, Zhang J, Chen X, Liu F, Tian S, Qu X. Risk factors assessment in patients with acute fatty liver of pregnancy treated without plasma exchange or renal replacement therapy. J Matern Fetal Neonatal Med 2020; 35:2036-2040. [PMID: 32519920 DOI: 10.1080/14767058.2020.1777267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Objective: Acute fatty liver of pregnancy(AFLP) is a rare but very urgent obstetric disease in clinical. It is a common cause of liver failure in pregnancy and often needs to be admitted to the department of critical care medicine because of the rapid development of acute hepatic dysfunction and severe acute renal dysfunction. The etiology and pathogenesis of this disorder is not very clear although there have been many studies on it before. Meanwhile, the relatively high mortality requires a better recognition in order to better guide clinical decision making. Our previous multicentre retrospective study on AFLP demonstrated that total bilirubin and serum creatinine were independent risk factors for perinatal maternal mortality. And we aim to further assess maternal outcomes and risk factors in AFLP patients treated without plasma exchange or renal replacement therapy based on previous data we collected.Methods: Retrospective cohort study of 133 hospitalized patients with AFLP was collected from four Chinese tertiary hospitals during the period between January 2009 and April 2014. One hundred thirty three patients were divided into two subgroups containing patients treated without plasma exchange (PE) or renal replacement therapy (CRT) and patients treated with PE or/and CRT. Logistic regression was used to analyze independent risk factors for maternal mortality of AFLP treated without PE or CRT.Results: The maternal mortality rate was 12.0% in subgroup of patients treated without PE or CRT. And in subgroup of patients treated with PE or/and CRT, the maternal mortality rate was 26.8%. Independent risk factors for maternal mortality of AFLP treated without PE or CRT were direct bilirubin (OR = 1.012; 95% CI, 1.002-1.022) and serum creatinine (OR = 1.022; 95% CI, 1.007-1.036).Conclusion: Although less liver and kidney damage in AFLP treated without PE or CRT, direct bilirubin and serum creatinine remained to be independent risk factors for maternal mortality. Thus, the level of bilirubin and serum creatinine might not be necessary for AFLP to decide whether to give plasma exchange or dialysis treatment.
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Affiliation(s)
- Qiang Gao
- Department of Critical Care Medicine, Dazhou Central Hospital, Dazhou, China
| | - Yujie Ma
- Department of Cardiovascular Medicine, Dachuan People's Hospital, Dazhou, China
| | - Jicheng Zhang
- Department of Shandong Provincial Hospital, Affiliated to Shandong University, Jinan, China
| | - Xiukai Chen
- Center for Critical Care Nephrology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Surgical Intensive Care Unit, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Fen Liu
- Department of Critical Care Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Suochen Tian
- Department of Critical Care Medicine, Liaocheng People's Hospital, Liaocheng, China
| | - Xin Qu
- Department of Neurosurgery, Xuan Wu Hospital, Capital Medical University, Beijing, China
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15
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Acute Fatty Liver of Pregnancy: Pathophysiology, Anesthetic Implications, and Obstetrical Management. Anesthesiology 2020; 130:446-461. [PMID: 30707120 DOI: 10.1097/aln.0000000000002597] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A narrative review of the pathophysiology, diagnosis, management, delivery implications, obstetric anesthesia care, and potential critical care needs in patients presenting with acute fatty liver of pregnancy.
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16
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Song JH, Kim KJ, Chei S, Seo YJ, Lee K, Lee BY. Korean Red Ginseng and Korean black ginseng extracts, JP5 and BG1, prevent hepatic oxidative stress and inflammation induced by environmental heat stress. J Ginseng Res 2020; 44:267-273. [PMID: 32148408 PMCID: PMC7031738 DOI: 10.1016/j.jgr.2018.12.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 11/29/2018] [Accepted: 12/11/2018] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Continuous exposure to high temperatures can lead to heat stress. This stress response alters the expression of multiple genes and can contribute to the onset of various diseases. In particular, heat stress induces oxidative stress by increasing the production of reactive oxygen species. The liver is an essential organ that plays a variety of roles, such as detoxification and protein synthesis. Therefore, it is important to protect the liver from oxidative stress caused by heat stress. Korean ginseng has a variety of beneficial biological properties, and our previous studies showed that it provides an effective defense against heat stress. METHODS We investigated the ability of Korean Red Ginseng and Korean black ginseng extracts (JP5 and BG1) to protect against heat stress using a rat model. We then confirmed the active ingredients and mechanism of action using a cell-based model. RESULTS Heat stress significantly increased gene and protein expression of oxidative stress-related factors such as catalase and SOD2, but treatment with JP5 (Korean Red Ginseng extract) and BG1 (Korean black ginseng extract) abolished this response in both liver tissue and HepG2 cells. In addition, JP5 and BG1 inhibited the expression of inflammatory proteins such as p-NF-κB and tumor necrosis factor alpha-α. In particular, JP5 and BG1 decreased the expression of components of the NLRP3 inflammasome, a key inflammatory signaling factor. Thus, JP5 and BG1 inhibited both oxidative stress and inflammation. CONCLUSIONS JP5 and BG1 protect against oxidative stress and inflammation induced by heat stress and help maintain liver function by preventing liver damage.
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Affiliation(s)
| | | | | | | | | | - Boo-Yong Lee
- Department of Food Science and Biotechnology, College of Life Science, CHA University, Seongnam, Republic of Korea
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17
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Alese MO, Moodley J, Naicker T. Preeclampsia and HELLP syndrome, the role of the liver. J Matern Fetal Neonatal Med 2019; 34:117-123. [PMID: 30704316 DOI: 10.1080/14767058.2019.1572737] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Preeclampsia is a multisystemic disorder which accounts for the high prevalence of maternal and perinatal morbidity and mortality, especially in middle and low-income countries. Currently, the primary intervention is the urgent delivery of the fetus, hence it would be advantageous to identify those who are likely to develop preeclampsia and the maternal and fetal outcomes. However, an array of risk factors makes these challenging. This review explores the potentials of liver biomarkers in predicting the occurrence and outcome of preeclampsia, which could be beneficial in reducing the burden of the disease. Liver dysfunction in preeclampsia results in a severe condition, hence liver function tests are specific predictors of outcome.
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Affiliation(s)
- Margaret Olutayo Alese
- Optics and Imaging Center, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Jagidesa Moodley
- Women's Health and HIV Research Unit, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Thajasvarie Naicker
- Optics and Imaging Center, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
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18
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Papa Gobbi R, Magnarelli G, Rovedatti MG. Susceptibility of placental mitochondria to oxidative stress. Birth Defects Res 2018; 110:1228-1232. [PMID: 30230269 DOI: 10.1002/bdr2.1377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 07/04/2018] [Accepted: 07/12/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Two different mitochondrial fractions (MFs) have been characterized in the human placenta: the "light" and "heavy" fractions (LMF and HMF). Although these organelles are the main source of reactive oxygen species, an imbalance between their production and the rate of detoxification represents a serious threat to mitochondrial homeostasis and, in the case of the placenta, also to the fetus. The aim of this study was to evaluate the antioxidant capacity and susceptibility to oxidative stress in both types of MFs. METHODS Human MFs were isolated from healthy donors (n = 11) and either incubated or not with H2 O2 . Catalase (CAT) activity, and reduced glutathione (GSH), lipid peroxidation (LP), and protein carbonylation (PC) levels were determined. RESULTS H2 O2 treatment increased LP and PC levels and decreased CAT activity. GSH levels were similar in control and treated MFs. CONCLUSION H2 O2 caused oxidative damage in both LMF and HMF and the antioxidant system measured in these two MFs responded similarly. To the best of our knowledge, this is the first partial description of the antioxidant defense in placental HMF and LMF performed in a cell-free assay. The small number of antioxidant system parameters measured did not allow detecting differences between HMF and LMF.
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Affiliation(s)
- Rodrigo Papa Gobbi
- Centro de Investigaciones en Toxicología Ambiental y Agrobiotecnología del Comahue (CITAAC), CONICET, Universidad Nacional del Comahue, Neuquén, Argentina
| | - Gladis Magnarelli
- Centro de Investigaciones en Toxicología Ambiental y Agrobiotecnología del Comahue (CITAAC), CONICET, Universidad Nacional del Comahue, Neuquén, Argentina.,Facultad de Ciencias Médicas, Universidad Nacional del Comahue, Cipolletti, Río Negro, Argentina
| | - María Gabriela Rovedatti
- Centro de Investigaciones en Toxicología Ambiental y Agrobiotecnología del Comahue (CITAAC), CONICET, Universidad Nacional del Comahue, Neuquén, Argentina
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Abstract
Once based mainly in paediatrics, inborn errors of metabolism (IEM), or inherited metabolic disorders (IMD) represent a growing adult medicine specialty. Individually rare these conditions have currently, a collective estimated prevalence of >1:800. Diagnosis has improved through expanded newborn screening programs, identification of potentially affected family members and greater awareness of symptomatic presentations in adolescence and in adulthood. Better survival and reduced mortality from previously lethal and debilitating conditions means greater numbers transition to adulthood. Pregnancy, once contraindicated for many, may represent a challenging but successful outcome. Successful pregnancies are now reported in a wide range of IEM. Significant challenges remain, given the biological stresses of pregnancy, parturition and the puerperium. Known diagnoses allow preventive and pre-emptive management. Unrecognized metabolic disorders especially, remain a preventable cause of maternal and neonatal mortality and morbidity. Increased awareness of these conditions amongst all clinicians is essential to expedite diagnosis and manage appropriately. This review aims to describe normal adaptations to pregnancy and discuss how various types of IEM may be affected. Relevant translational research and clinical experience will be reviewed with practical management aspects cited. Based on current literature, the impact of maternal IEM on mother and/or foetus, as well as how foetal IEM may affect the mother, will be considered. Insights gained from these rare disorders to more common conditions will be explored. Gaps in the literature, unanswered questions and steps to enhance further knowledge and systematically capture experience, such as establishment of an IEM-pregnancy registry, will be summarized.
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Affiliation(s)
- Gisela Wilcox
- School of Medical Sciences, Faculty of Biology Medicine & Health, University of Manchester, Manchester, UK.
- The Mark Holland Metabolic Unit, Salford Royal Foundation NHS Trust, Salford, Greater Manchester, M6 8HD, UK.
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20
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The Hibernating Bear-A Good Analogy to Explain Why Acute Fatty Liver of Pregnancy Manifests in Late Pregnancy. Am J Gastroenterol 2018; 113:307-308. [PMID: 29467534 DOI: 10.1038/ajg.2017.462] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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21
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Natarajan SK, Ibdah JA. Role of 3-Hydroxy Fatty Acid-Induced Hepatic Lipotoxicity in Acute Fatty Liver of Pregnancy. Int J Mol Sci 2018; 19:ijms19010322. [PMID: 29361796 PMCID: PMC5796265 DOI: 10.3390/ijms19010322] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 01/16/2018] [Accepted: 01/16/2018] [Indexed: 12/16/2022] Open
Abstract
Acute fatty liver of pregnancy (AFLP), a catastrophic illness for both the mother and the unborn offspring, develops in the last trimester of pregnancy with significant maternal and perinatal mortality. AFLP is also recognized as an obstetric and medical emergency. Maternal AFLP is highly associated with a fetal homozygous mutation (1528G>C) in the gene that encodes for mitochondrial long-chain hydroxy acyl-CoA dehydrogenase (LCHAD). The mutation in LCHAD results in the accumulation of 3-hydroxy fatty acids, such as 3-hydroxy myristic acid, 3-hydroxy palmitic acid and 3-hydroxy dicarboxylic acid in the placenta, which are then shunted to the maternal circulation leading to the development of acute liver injury observed in patients with AFLP. In this review, we will discuss the mechanistic role of increased 3-hydroxy fatty acid in causing lipotoxicity to the liver and in inducing oxidative stress, mitochondrial dysfunction and hepatocyte lipoapoptosis. Further, we also review the role of 3-hydroxy fatty acids in causing placental damage, pancreatic islet β-cell glucolipotoxicity, brain damage, and retinal epithelial cells lipoapoptosis in patients with LCHAD deficiency.
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Affiliation(s)
- Sathish Kumar Natarajan
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE 68583-0806, USA.
| | - Jamal A Ibdah
- Division of Gastroenterology and Hepatology, University of Missouri, Columbia, MO 65212, USA.
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65212, USA.
- Harry S. Truman Memorial Veterans Medical Center, Columbia, MO 65201, USA.
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22
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Acute Fatty Liver Disease of Pregnancy: Updates in Pathogenesis, Diagnosis, and Management. Am J Gastroenterol 2017; 112:838-846. [PMID: 28291236 DOI: 10.1038/ajg.2017.54] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 02/03/2017] [Indexed: 12/11/2022]
Abstract
Acute fatty liver of pregnancy (AFLP) is an obstetric emergency characterized by maternal liver failure and may have complications for the mother and fetus, including death. This review examines recent literature on the epidemiology, pathogenesis, diagnosis, and treatment of acute fatty liver of pregnancy. Pathogenesis of this disease has been linked to defects in fatty acid metabolism during pregnancy, especially in the setting of fetal genetic defects in fatty acid oxidation. The value of screening all patients for these genetic defects remains to be determined. Distinguishing AFLP from other high-risk liver diseases of pregnancy that have overlap features, such as HELLP and preeclampsia, can be challenging. Although sensitive diagnostic tools such as the Swansea criteria have been developed, further work is needed to diagnose AFLP more quickly. Although survival rates have improved in the past 30 years, delay in diagnosis and treatment of AFLP has life-threatening consequences; an algorithmic approach to AFLP may be a valuable resource for clinicians. Future epidemiological and long-term studies will improve our prediction of women at risk for developing AFLP and determine the long-term consequences of this condition.
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Zhang YP, Kong WQ, Zhou SP, Gong YH, Zhou R. Acute Fatty Liver of Pregnancy: A Retrospective Analysis of 56 Cases. Chin Med J (Engl) 2017; 129:1208-14. [PMID: 27174330 PMCID: PMC4878167 DOI: 10.4103/0366-6999.181963] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background: Acute fatty liver of pregnancy (AFLP) is a rare but life-threatening complication occurring in the third trimester. It is often fatal to both mother and fetus. The complicated clinical manifestations as well as an insufficient understanding of the disease make the precise diagnosis and effective treatment of AFLP challenging. A full understanding of the risk factors, clinical features, and test findings of AFLP is critical for its timely diagnosis and treatment. Methods: We performed a retrospective study of 56 patients with AFLP between June 2008 and July 2013. We analyzed the clinical features, laboratory results, perioperative management, and patient outcomes. Results: The initial symptoms varied considerably, with nausea and vomiting (13/56, 23%) being the most common. Liver-function indexes were remarkable, including elevated levels of serum alanine aminotransferase (262.16 ± 281.71 U/L), aspartate aminotransferase (260.98 ± 237.91 U/L), lactic dehydrogenase (1011.76 ± 530.34 U/L), and direct bilirubin (85.59 ± 90.02 μmol/L). Coagulation disorders were indicated by abnormal levels of fibrinogen (245.95 ± 186.11 mg/dL), D-dimer (2.46 ± 4.01 mg/L), and fibrin degradation products (43.62 ± 48.71 mg/L). The main maternal complications were hypoproteinemia (75%), coagulopathy (54%), and acute renal failure (39%). Multivariate logistic regression analysis identified prothrombin time (PT; odds ratio [OR] = 1.558, 95% confidence interval [CI] =1.248–1.946, P = 0.016) and international normalized ratio (INR; OR = 40.034, 95% CI = 2.517–636.693, P = 0.009) as risk factors. The perinatal infant death rate was related to gestational age at delivery (OR = 1.298, 95% CI = 1.040–1.618, P = 0.021), direct bilirubin (OR = 1.05, 95% CI = 1.008–1.094, P = 0.020), and fibrin degradation products (OR = 0.973, 95% CI = 0.950–0.996, P = 0.021). Conclusions: Nausea and vomiting may be the most common symptoms of AFLP. Indexes of liver dysfunction and coagulation disorders should also be considered. PT and INR are risk factors for fatal complications in patients with AFLP, and perinatal mortality is linked to the level of fibrin degradation products. Timely delivery is crucial to controlling the development of AFLP.
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Affiliation(s)
- Yan-Ping Zhang
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Wei-Qi Kong
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Sheng-Ping Zhou
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yun-Hui Gong
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Rong Zhou
- Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, China
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Peng Y, Zhu X, Qiu L. Electroneutral composite polymersomes self-assembled by amphiphilic polyphosphazenes for effective miR-200c in vivo delivery to inhibit drug resistant lung cancer. Biomaterials 2016; 106:1-12. [PMID: 27541441 DOI: 10.1016/j.biomaterials.2016.08.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 07/30/2016] [Accepted: 08/01/2016] [Indexed: 02/05/2023]
Abstract
MiR-200c has been confirmed to display remarkable effects on proliferation inhibition and apoptosis induction of certain cancer cells, but the main challenge for its successful translation into the clinic remains its effective delivery to the action site in vivo. In this study, a novel composite polyphosphazene vesicle system composed of amphiphilic [NP(PEG)0.3(EAB)1.7]n (PEEP) and weakly cationic [NP(PEG)0.5(DPA)1.5]n (PEDP) was prepared via a very simple dialysis method. The loading of miR-200c was accomplished with high efficiency by taking advantage of the combination effect of physical encapsulation and electrostatic interaction between vectors and miR-200c. The resultant miR-200c-loaded PEEP-PEDP polymersome (Nano-ED-200c) displayed suitable particle size, electric neutrality, excellent Ribonuclease stability and hemocompatibility. We also evaluated its subsequent miR-200c function in paclitaxel resistance human lung cancer (A549/T) cells in culture and tumor xenografts in nude mice. The results showed that Nano-ED-200c could achieve a higher miR-200c level and the enhanced antitumor efficacy with 68% tumor inhibition ratio at a very low dose of 1.0 mg/kg than PEEP nanoparticle, PEDP nanoparticle, even than Lipo2000. All these evidences indicated that this miR-200c delivery via polyphosphazene vesicles could act as a potential new therapeutic option for paclitaxel resistant human lung cancer.
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Affiliation(s)
- Yan Peng
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yu-Hang-Tang Road, Hangzhou 310058, China
| | - Xiumei Zhu
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yu-Hang-Tang Road, Hangzhou 310058, China
| | - Liyan Qiu
- Ministry of Education (MOE) Key Laboratory of Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China; Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
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25
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Alcoholic vs non-alcoholic fatty liver in rats: distinct differences in endocytosis and vesicle trafficking despite similar pathology. BMC Gastroenterol 2016; 16:27. [PMID: 26924554 PMCID: PMC4770635 DOI: 10.1186/s12876-016-0433-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 02/12/2016] [Indexed: 12/13/2022] Open
Abstract
Background Non-alcoholic and alcoholic fatty liver disease (NAFLD and AFLD, respectively) are major health problems, as patients with either condition can progress to hepatitis, fibrosis, and cirrhosis. Although histologically similar, key differences likely exist in these two models. For example, altered content of several vesicle trafficking proteins have been identified in AFLD, but their content in NAFLD is unknown. In this study, we compared select parameters in NAFLD and AFLD in a rat model. Methods We fed either Lieber- DeCarli liquid control or alcohol-containing (35 % as calories) diet (AFLD model) or lean or high-fat (12 or 60 % derived from fat, respectively) pellets (NAFLD model) for 8–10 weeks, n = 8 in each model. Serum, hepatocytes and liver tissue were analyzed. Liver injury markers were measured in serum, triglyceride content and endocytosis (binding and internalization of 125I- asialoorosomucoid) was measured in isolated hepatocytes, and content of selected trafficking proteins (Rab3D, Rab7 and Rab18) were determined in whole liver tissue. Results Although liver injury markers and triglyceride content were similar in both models, binding and internalization of 125I- asialoorosomucoid was significantly impaired in the hepatocytes from AFLD, but not NAFLD, animals. In addition, protein content of the asialoglycoprotein receptor (ASGPR) and three trafficking proteins, Rab3D, Rab7and Rab18, were significantly decreased after alcohol, but not high-fat feeding. Levels of protein carbonylation, amount of glutathione stores, and lipid peroxidation were similar irrespective of the insult to the livers that resulted in fatty liver. Conclusion Impairments in protein trafficking in AFLD are likely a direct result of alcohol administration, and not a function of fatty liver.
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Ress C, Kaser S. Mechanisms of intrahepatic triglyceride accumulation. World J Gastroenterol 2016; 22:1664-1673. [PMID: 26819531 PMCID: PMC4721997 DOI: 10.3748/wjg.v22.i4.1664] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 08/20/2015] [Accepted: 09/30/2015] [Indexed: 02/06/2023] Open
Abstract
Hepatic steatosis defined as lipid accumulation in hepatocytes is very frequently found in adults and obese adolescents in the Western World. Etiologically, obesity and associated insulin resistance or excess alcohol intake are the most frequent causes of hepatic steatosis. However, steatosis also often occurs with chronic hepatitis C virus (HCV) infection and is also found in rare but potentially life-threatening liver diseases of pregnancy. Clinical significance and outcome of hepatic triglyceride accumulation are highly dependent on etiology and histological pattern of steatosis. This review summarizes current concepts of pathophysiology of common causes of hepatic steatosis, including non-alcoholic fatty liver disease (NAFLD), alcoholic fatty liver disease, chronic HCV infections, drug-induced forms of hepatic steatosis, and acute fatty liver of pregnancy. Regarding the pathophysiology of NAFLD, this work focuses on the close correlation between insulin resistance and hepatic triglyceride accumulation, highlighting the potential harmful effects of systemic insulin resistance on hepatic metabolism of fatty acids on the one side and the role of lipid intermediates on insulin signalling on the other side. Current studies on lipid droplet morphogenesis have identified novel candidate proteins and enzymes in NAFLD.
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Pawlak M, Baugé E, Lalloyer F, Lefebvre P, Staels B. Ketone Body Therapy Protects From Lipotoxicity and Acute Liver Failure Upon Pparα Deficiency. Mol Endocrinol 2015; 29:1134-43. [PMID: 26087172 DOI: 10.1210/me.2014-1383] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Acute liver failure (ALF) is a severe and rapid liver injury, often occurring without any preexisting liver disease, which may precipitate multiorgan failure and death. ALF is often associated with impaired β-oxidation and increased oxidative stress (OS), characterized by elevated levels of hepatic reactive oxygen species (ROS) and lipid peroxidation (LPO) products. Peroxisome proliferator-activated receptor (PPAR)α has been shown to confer hepatoprotection in acute and chronic liver injury, at least in part, related to its ability to control peroxisomal and mitochondrial β-oxidation. To study the pathophysiological role of PPARα in hepatic response to high OS, we induced a pronounced LPO by treating wild-type and Pparα-deficient mice with high doses of fish oil (FO), containing n-3 polyunsaturated fatty acids. FO feeding of Pparα-deficient mice, in contrast to control sunflower oil, surprisingly induced coma and death due to ALF as indicated by elevated serum alanine aminotransferase, aspartate aminotransferase, ammonia, and a liver-specific increase of ROS and LPO-derived malondialdehyde. Reconstitution of PPARα specifically in the liver using adeno-associated serotype 8 virus-PPARα in Pparα-deficient mice restored β-oxidation and ketogenesis and protected mice from FO-induced lipotoxicity and death. Interestingly, administration of the ketone body β-hydroxybutyrate prevented FO-induced ALF in Pparα-deficient mice, and normalized liver ROS and malondialdehyde levels. Therefore, PPARα protects the liver from FO-induced OS through its regulatory actions on ketone body levels. β-Hydroxybutyrate treatment could thus be an option to prevent LPO-induced liver damage.
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Affiliation(s)
- Michal Pawlak
- European Genomic Institute for Diabetes, Inserm UMR1011, and University Lille, F-59000 Lille Cédex, France; and Institut Pasteur de Lille, F-59019 Lille Cédex, France
| | - Eric Baugé
- European Genomic Institute for Diabetes, Inserm UMR1011, and University Lille, F-59000 Lille Cédex, France; and Institut Pasteur de Lille, F-59019 Lille Cédex, France
| | - Fanny Lalloyer
- European Genomic Institute for Diabetes, Inserm UMR1011, and University Lille, F-59000 Lille Cédex, France; and Institut Pasteur de Lille, F-59019 Lille Cédex, France
| | - Philippe Lefebvre
- European Genomic Institute for Diabetes, Inserm UMR1011, and University Lille, F-59000 Lille Cédex, France; and Institut Pasteur de Lille, F-59019 Lille Cédex, France
| | - Bart Staels
- European Genomic Institute for Diabetes, Inserm UMR1011, and University Lille, F-59000 Lille Cédex, France; and Institut Pasteur de Lille, F-59019 Lille Cédex, France
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Goel A, Jamwal KD, Ramachandran A, Balasubramanian KA, Eapen CE. Pregnancy-related liver disorders. J Clin Exp Hepatol 2014; 4:151-62. [PMID: 25755551 PMCID: PMC4116710 DOI: 10.1016/j.jceh.2013.03.220] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Accepted: 03/06/2013] [Indexed: 12/12/2022] Open
Abstract
Pregnancy-related liver disorders accounted for 8% of all maternal deaths at our center from 1999 to 2011. Of the three pregnancy-related liver disorders (acute fatty liver of pregnancy (AFLP), HELLP (Hemolysis, elevated liver enzymes, low platelets) syndrome and pre-eclamptic liver dysfunction, which can lead to adverse maternal and fetal outcome, AFLP is most typically under - diagnosed. Risk of maternal death can be minimised by timely recognition and early/aggressive multi-specialty management of these conditions. Urgent termination of pregnancy remains the cornerstone of therapy for some of these life threatening disorders, but recent advancements in our understanding help us in better overall management of these patients. This review focuses on various aspects of pregnancy-related liver disorders.
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Key Words
- AFLP, acute fatty liver of pregnancy
- CS, Caesarean
- FAO, fatty acid oxidation
- HELLP syndrome
- HELLP, hemolysis elevated liver enzymes and low platelets
- HG, hyperemesis gravidarum
- HbsAg, hepatitis B surface antigen
- ICP, intrahepatic cholestasis of pregnancy
- LCHAD, long chain hydroxyacyl coA dehydrogenase
- LDH, lactate dehydrogenase
- LFT, liver function tests
- MP, malarial parasite
- MTP, mitochondrial tri-functional protein
- PFIC, progressive familial intra-hepatic cholestasis
- PRLD, pregnancy-related liver disorders
- PT, prothrombin time
- UDCA, ursodeoxycholic acid
- acute fatty liver of pregnancy
- maternal mortality
- pre-eclampsia
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Affiliation(s)
- Ashish Goel
- Department of Hepatology, Division of Gastrointestinal Sciences, Christian Medical College, Vellore 632004, Tamil Nadu, India
| | - Kapil D. Jamwal
- Department of Hepatology, Division of Gastrointestinal Sciences, Christian Medical College, Vellore 632004, Tamil Nadu, India
| | - Anup Ramachandran
- Department of Wellcome Research Unit, Division of Gastrointestinal Sciences, Christian Medical College, Vellore 632004, Tamil Nadu, India
| | - Kunissery A. Balasubramanian
- Department of Wellcome Research Unit, Division of Gastrointestinal Sciences, Christian Medical College, Vellore 632004, Tamil Nadu, India
| | - Chundamannil E. Eapen
- Department of Hepatology, Division of Gastrointestinal Sciences, Christian Medical College, Vellore 632004, Tamil Nadu, India,Address for correspondence: Chundamannil E. Eapen, Professor and Head, Department of Hepatology, Christian Medical College, Vellore 632004, India. Tel.: +91 (0) 416 2282148, +91 (0) 416 2282496; fax: +91 (0) 416 2232305, +91 (0) 416 2232054.
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Castello H, Schoch L, Grogan TA. Acute liver failure in an obstetric patient: challenge of critical care for 1 patient with 2 subspecialty needs. Crit Care Nurse 2013; 33:48-56. [PMID: 23377157 DOI: 10.4037/ccn2013631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Acute fatty liver of pregnancy is a rare and life-threatening disease associated with a defect in fatty acid metabolism in the fetus that causes liver disease in the mother. Prompt diagnosis and management are critical to the outcome of both the mother and the fetus and require involvement of several medical specialties, including hepatology, obstetrics, and, possibly, critical care. The included case study describes a woman with acute fatty liver of pregnancy decompensating to acute liver failure complicated by encephalopathy, cerebral edema, and intracranial hypertension. Subsequent management of these conditions, including the woman's progression to liver transplant, is provided.
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Affiliation(s)
- Holly Castello
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
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Kia L, Rinella ME. Interpretation and management of hepatic abnormalities in pregnancy. Clin Gastroenterol Hepatol 2013; 11:1392-8. [PMID: 23707777 DOI: 10.1016/j.cgh.2013.05.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 05/09/2013] [Accepted: 05/09/2013] [Indexed: 02/06/2023]
Abstract
The spectrum of liver disease in pregnancy includes liver disease unrelated to pregnancy, liver diseases that occur with increased frequency or severity in pregnancy, and liver disease specific to pregnancy. Diseases of the liver unique to pregnancy reliably occur at specific points in the gestational spectrum. Thus, gestational age, a comprehensive history, and a clinically driven diagnostic evaluation is critical in approaching a pregnant patient with abnormal liver chemistries or function. Early recognition of these conditions is important and although management may be expectant, some patients require targeted therapy or necessitate prompt delivery, which can be life-saving to both mother and child.
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Affiliation(s)
- Leila Kia
- Department of Medicine, Division of Gastroenterology and Hepatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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Than NN, Neuberger J. Liver abnormalities in pregnancy. Best Pract Res Clin Gastroenterol 2013; 27:565-75. [PMID: 24090943 DOI: 10.1016/j.bpg.2013.06.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 06/21/2013] [Indexed: 01/31/2023]
Abstract
Abnormalities of liver function (notably rise in alkaline phosphatase and fall in serum albumin) are common in normal pregnancy, whereas rise in serum bilirubin and aminotransferase suggest either exacerbation of underlying pre-existing liver disease, liver disease related to pregnancy or liver disease unrelated to pregnancy. Pregnant women appear to have a worse outcome when infected with Hepatitis E virus. Liver diseases associated with pregnancy include abnormalities associated hyperemesis gravidarum, acute fatty liver disease, pre-eclampsia, cholestasis of pregnancy and HELLP syndrome. Prompt investigation and diagnosis is important in ensuring a successful maternal and foetal outcome. In general, prompt delivery is the treatment of choice for acute fatty liver, pre-eclampsia and HELLP syndrome and ursodeoxycholic acid is used for cholestasis of pregnancy although it is not licenced for this indication.
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Affiliation(s)
- Nwe Ni Than
- Liver Unit, Queen Elizabeth Hospital, Birmingham B15 2TH, UK
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Kim KJ, Yoon KY, Hong HD, Lee BY. Schisandra chinensis
Prevents Hepatic Lipid Peroxidation and Oxidative Stress in Rats Subjected to Heat Environmental Stress. Phytother Res 2012; 26:1674-80. [DOI: 10.1002/ptr.4640] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 12/28/2011] [Accepted: 01/23/2012] [Indexed: 12/19/2022]
Affiliation(s)
- Kui-Jin Kim
- Department of Biomedical Science; CHA University; Kyonggi 463-836 South Korea
| | - Kye-Yoon Yoon
- Department of Biomedical Science; CHA University; Kyonggi 463-836 South Korea
| | - Hee-Do Hong
- Korea Food Research Institute; Kyonggi Seongnam 463-836 South Korea
| | - Boo-Yong Lee
- Department of Biomedical Science; CHA University; Kyonggi 463-836 South Korea
- Department of Food Science and Biotechnology; CHA University; Kyonggi 463-836 South Korea
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Tang W, Huang Z, Wang Y, Bo H, Fu P. Effect of Plasma Exchange on Hepatocyte Oxidative Stress, Mitochondria Function, and Apoptosis in Patients With Acute Fatty Liver of Pregnancy. Artif Organs 2012; 36:E39-47. [DOI: 10.1111/j.1525-1594.2011.01417.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Pessayre D, Fromenty B, Berson A, Robin MA, Lettéron P, Moreau R, Mansouri A. Central role of mitochondria in drug-induced liver injury. Drug Metab Rev 2011; 44:34-87. [PMID: 21892896 DOI: 10.3109/03602532.2011.604086] [Citation(s) in RCA: 182] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A frequent mechanism for drug-induced liver injury (DILI) is the formation of reactive metabolites that trigger hepatitis through direct toxicity or immune reactions. Both events cause mitochondrial membrane disruption. Genetic or acquired factors predispose to metabolite-mediated hepatitis by increasing the formation of the reactive metabolite, decreasing its detoxification, or by the presence of critical human leukocyte antigen molecule(s). In other instances, the parent drug itself triggers mitochondrial membrane disruption or inhibits mitochondrial function through different mechanisms. Drugs can sequester coenzyme A or can inhibit mitochondrial β-oxidation enzymes, the transfer of electrons along the respiratory chain, or adenosine triphosphate (ATP) synthase. Drugs can also destroy mitochondrial DNA, inhibit its replication, decrease mitochondrial transcripts, or hamper mitochondrial protein synthesis. Quite often, a single drug has many different effects on mitochondrial function. A severe impairment of oxidative phosphorylation decreases hepatic ATP, leading to cell dysfunction or necrosis; it can also secondarily inhibit ß-oxidation, thus causing steatosis, and can also inhibit pyruvate catabolism, leading to lactic acidosis. A severe impairment of β-oxidation can cause a fatty liver; further, decreased gluconeogenesis and increased utilization of glucose to compensate for the inability to oxidize fatty acids, together with the mitochondrial toxicity of accumulated free fatty acids and lipid peroxidation products, may impair energy production, possibly leading to coma and death. Susceptibility to parent drug-mediated mitochondrial dysfunction can be increased by factors impairing the removal of the toxic parent compound or by the presence of other medical condition(s) impairing mitochondrial function. New drug molecules should be screened for possible mitochondrial effects.
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Affiliation(s)
- Dominique Pessayre
- INSERM, U, Centre de Recherche Bichat Beaujon CRB, Faculté de Médecine Xavier-Bichat, Paris, France.
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Natarajan SK, Thangaraj KR, Goel A, Eapen CE, Balasubramanian KA, Ramachandran A. Acute fatty liver of pregnancy: an update on mechanisms. Obstet Med 2011; 4:99-103. [PMID: 27579101 DOI: 10.1258/om.2011.100071] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2011] [Indexed: 12/18/2022] Open
Abstract
Acute fatty liver of pregnancy (AFLP), characterized by hepatic microvesicular steatosis, is a sudden catastrophic illness occurring almost exclusively in the third trimester of pregnancy. Defective fatty acid oxidation in the fetus has been shown to be associated with this disease. Since the placenta has the same genetic makeup as the fetus and as AFLP patients generally recover following delivery, we hypothesized that the placenta might be involved in pathogenesis of this disease. In an animal model of hepatic microvesicular steatosis (using sodium valproate), we found that microvesicular steatosis results in mitochondrial structural alterations and oxidative stress in subcellular organelles of the liver. In placentas from patients with AFLP, we observed placental mitochondrial dysfunction and oxidative stress in subcellular organelles. In addition, defective placental fatty acid oxidation results in accumulation of toxic mediators such as arachidonic acid. Escape of these mediators into the maternal circulation might affect the maternal liver resulting in microvesicular steatosis.
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Affiliation(s)
- Sathish Kumar Natarajan
- The Wellcome Trust Research Laboratory, Department of Gastrointestinal Sciences, Christian Medical College , Ida Scudder Road, Vellore 632004 , India
| | - Kavitha R Thangaraj
- The Wellcome Trust Research Laboratory, Department of Gastrointestinal Sciences, Christian Medical College , Ida Scudder Road, Vellore 632004 , India
| | - Ashish Goel
- The Wellcome Trust Research Laboratory, Department of Gastrointestinal Sciences, Christian Medical College , Ida Scudder Road, Vellore 632004 , India
| | - C E Eapen
- The Wellcome Trust Research Laboratory, Department of Gastrointestinal Sciences, Christian Medical College , Ida Scudder Road, Vellore 632004 , India
| | - K A Balasubramanian
- The Wellcome Trust Research Laboratory, Department of Gastrointestinal Sciences, Christian Medical College , Ida Scudder Road, Vellore 632004 , India
| | - Anup Ramachandran
- The Wellcome Trust Research Laboratory, Department of Gastrointestinal Sciences, Christian Medical College , Ida Scudder Road, Vellore 632004 , India
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Bacq Y. Liver diseases unique to pregnancy: a 2010 update. Clin Res Hepatol Gastroenterol 2011; 35:182-93. [PMID: 21310683 DOI: 10.1016/j.clinre.2010.11.011] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Revised: 11/19/2010] [Accepted: 11/23/2010] [Indexed: 02/08/2023]
Abstract
Liver disorders occurring during pregnancy may be specifically pregnancy-related, or may be due to an intercurrent or chronic liver disease, which may present in anyone, pregnant or not. This review focuses on the liver diseases unique to pregnancy. Hyperemesis gravidarum, which occurs during early pregnancy, may be associated with liver dysfunction. Intrahepatic cholestasis of pregnancy typically occurs during the second or third trimester. Pruritus and the associated biological signs of cholestasis improve rapidly after delivery. Mutations in gene encoding biliary transporters, especially ABCB4 encoding the multidrug resistance 3 protein, have been found to be associated with this complex disease. Ursodeoxycholic acid is currently the most effective medical treatment in improving pruritus and liver tests. Pre-eclampsia, which presents in late pregnancy frequently involves the liver, and HELLP syndrome (Hemolysis-Elevated Liver enzymes-Low Platelets) is a life-threatening complication. Prognosis of acute fatty liver of pregnancy has been radically transformed by early delivery, and clinicians must have a high index of suspicion for this condition when a woman presents nausea or vomiting, epigastric pain, jaundice, or polyuria-polydipsia during the third trimester. Acute fatty liver of pregnancy has been found to be associated with a defect of long-chain 3-hydroxyacyl coenzyme A dehydrogenase in the fetus, and mothers and their offspring should undergo DNA testing at least for the main associated genetic mutation (c.1528G>C).
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Affiliation(s)
- Yannick Bacq
- Service d'hépatogastro-entérologie, hôpital Trousseau, Tours cedex, France.
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Abstract
Liver diseases related to pregnancy may be associated with preeclampsia (liver dysfunction related to preeclampsia; hemolysis, elevated liver enzymes, and low platelets with or without preeclampsia [HELLP syndrome]; and acute fatty liver of pregnancy) or may not involve preeclampsia (hyperemesis gravidarum and intrahepatic cholestasis of pregnancy). Liver diseases associated with pregnancy have unique presentations, but it can be difficult differentiating these from liver diseases that occur coincidentally with pregnancy. Recently, advances have been made in the disease mechanism and intervention of pregnancy-related liver diseases. Early diagnosis and delivery remains the key element in managing the liver diseases associated with preeclampsia, but emerging data suggest that incorporating advance supportive management into current strategies can improve both maternal and fetal outcomes.
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Affiliation(s)
- Calvin Pan
- Division of Liver Diseases, Department of Medicine, Mount Sinai Medical Center, Mount Sinai School of Medicine, One Gustave L. Levy Place, PO Box 1123, New York, NY 11355, USA.
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Goel A, Rao SV, Mathews MS, George A, Kurien M, Amritanand A, Masilamani VP, Zachariah U, Eapen CE. Rhino-orbital zygomycosis in a patient with pregnancy related liver disease and multi-organ failure. Indian J Gastroenterol 2011; 30:49-50. [PMID: 21424378 DOI: 10.1007/s12664-011-0084-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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The effects of Acanthopanax senticosus on global hepatic gene expression in rats subjected to heat environmental stress. Toxicology 2010; 278:217-23. [DOI: 10.1016/j.tox.2010.04.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2010] [Revised: 04/12/2010] [Accepted: 04/16/2010] [Indexed: 10/19/2022]
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