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Reyer H, Honerlagen H, Oster M, Ponsuksili S, Kuhla B, Wimmers K. Multi-tissue gene expression profiling of cows with a genetic predisposition for low and high milk urea levels. Anim Biotechnol 2024; 35:2322542. [PMID: 38426941 DOI: 10.1080/10495398.2024.2322542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Milk urea (MU) concentration is proposed as an indicator trait for breeding toward reduced nitrogen (N) emissions and leaching in dairy. We selected 20 German Holstein cows based on MU breeding values, with 10 cows each having low (LMUg) and high (HMUg) MU genetic predisposition. Using RNA-seq, we characterized these cows to unravel molecular pathways governing post-absorptive body N pools focusing on renal filtration and reabsorption of nitrogenous compounds, hepatic urea formation and mammary gland N excretion. While we observed minor adjustments in cellular energy metabolism in different tissues associated with different MU levels, no transcriptional differences in liver ammonia detoxification were detected, despite significant differences in MU between the groups. Differential expression of AQP3 and SLC38A2 in the kidney provides evidence for higher urea concentration in the collecting duct of LMU cows than HMU cows. The mammary gland exhibited the most significant differences, particularly in tricarboxylic acid (TCA) cycle genes, amino acid transport, tRNA binding, and casein synthesis. These findings suggest that selecting for lower MU could lead to altered urinary urea (UU) handling and changes in milk protein synthesis. However, given the genetic variability in N metabolism components, the long-term effectiveness of MU-based selection in reducing N emissions remains uncertain.
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Affiliation(s)
- Henry Reyer
- Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Hanne Honerlagen
- Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
- Animal Breeding and Genomics, Wageningen University and Research, Wageningen, The Netherlands
| | - Michael Oster
- Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Siriluck Ponsuksili
- Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Björn Kuhla
- Institute of Nutritional Physiology 'Oskar Kellner', Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Klaus Wimmers
- Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
- Faculty of Agriculture and Environmental Sciences, Professorship of Animal Breeding and Genetics, University of Rostock, Rostock, Germany
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2
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Dong T, Li H. Neurological risks arising from the bioaccumulation of heavy metal contaminants: A focus on mercury. Environ Toxicol 2024; 39:2692-2705. [PMID: 38240341 DOI: 10.1002/tox.24119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/18/2023] [Accepted: 12/25/2023] [Indexed: 04/17/2024]
Abstract
This study investigated the concentrations of heavy metals in the water sources of the upstream region of the Huangpu River, the Yangtze River Estuary, and various areas in Shanghai, as well as the heavy metal concentrations in the blood of Shanghai residents. It aimed to analyze the heavy metal elements absorbed by the human body and the resulting pathological effects. The results revealed that surface water primarily contains five heavy metals: copper (Cu), lead (Pb), zinc (Zn), arsenic (As), and mercury (Hg), while water sediments primarily contain seven heavy metals: Cu, cadmium (Cd), Pb, chromium (Cr), Zn, As, and Hg. The main heavy metals present in the human body are Pb, Hg, As, and Cd. By reviewing previous articles, it was found that heavy metal concentrations in human blood are higher than those in surface water, suggesting uncertainties in the heavy metal content of surface water and its tendency to settle at the bottom. Furthermore, a comparison of heavy metal content in sediments revealed that Hg is the most readily absorbed heavy metal by the human body and is also a toxic environmental pollutant. Within the cell, Hg is highly toxic to mitochondria and may cause oxidative stress and neurodegenerative disease. This study concludes that water sediments serve as the major source of pollution in the human body and pose significant health risks, thereby necessitating the implementation of effective preventive measures.
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Affiliation(s)
- Tianyu Dong
- Municipal Environmental Engineering College, Qingdao University of Technology, Qingdao, China
- Shanghai WLSA Academy, Shanghai, China
| | - Hanxuan Li
- Municipal Environmental Engineering College, Qingdao University of Technology, Qingdao, China
- Shanghai WLSA Academy, Shanghai, China
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Agarwal S, Gordon J, Bok RA, von Morze C, Vigneron DB, Kurhanewicz J, Ohliger MA. Distinguishing metabolic signals of liver tumors from surrounding liver cells using hyperpolarized 13 C MRI and gadoxetate. Magn Reson Med 2024; 91:2114-2125. [PMID: 38270193 DOI: 10.1002/mrm.29918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 10/04/2023] [Accepted: 10/18/2023] [Indexed: 01/26/2024]
Abstract
PURPOSE To use the hepatocyte-specific gadolinium-based contrast agent gadoxetate combined with hyperpolarized (HP) [1-13 C]pyruvate MRI to selectively suppress metabolic signals from normal hepatocytes while preserving the signals arising from tumors. METHODS Simulations were performed to determine the expected changes in HP 13 C MR signal in liver and tumor under the influence of gadoxetate. CC531 colon cancer cells were implanted into the livers of five Wag/Rij rats. Liver and tumor metabolism were imaged at 3 T using HP [1-13 C] pyruvate chemical shift imaging before and 15 min after injection of gadoxetate. Area under the curve for pyruvate and lactate were measured from voxels containing at least 75% of normal-appearing liver or tumor. RESULTS Numerical simulations predicted a 36% decrease in lactate-to-pyruvate (L/P) ratio in liver and 16% decrease in tumor. In vivo, baseline L/P ratio was 0.44 ± 0.25 in tumors versus 0.21 ± 0.08 in liver (p = 0.09). Following administration of gadoxetate, mean L/P ratio decreased by an average of 0.11 ± 0.06 (p < 0.01) in normal-appearing liver. In tumors, mean L/P ratio post-gadoxetate did not show a statistically significant change from baseline. Compared to baseline levels, the relative decrease in L/P ratio was significantly greater in liver than in tumors (-0.52 ± 0.16 vs. -0.19 ± 0.25, p < 0.05). CONCLUSIONS The intracellular hepatobiliary contrast agent showed a greater effect suppressing HP 13 C MRI metabolic signals (through T1 shortening) in normal-appearing liver when compared to tumors. The combined use of HP MRI with selective gadolinium contrast agents may allow more selective imaging in HP 13 C MRI.
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Affiliation(s)
- Shubhangi Agarwal
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, USA
| | - Jeremy Gordon
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, USA
| | - Robert A Bok
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, USA
| | - Cornelius von Morze
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, Missouri, USA
| | - Daniel B Vigneron
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, USA
- Liver Center, University of California, San Francisco, San Francisco, California, USA
| | - John Kurhanewicz
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, USA
| | - Michael A Ohliger
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, USA
- Liver Center, University of California, San Francisco, San Francisco, California, USA
- Department of Radiology, Zuckerberg San Francisco General Hospital, San Francisco, California, USA
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Yang H, Lai B. Inflammatory myofibroblastoma mimicking cavernous hemangioma in the liver. Liver Int 2024; 44:1265-1266. [PMID: 38407558 DOI: 10.1111/liv.15884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 02/02/2024] [Accepted: 02/16/2024] [Indexed: 02/27/2024]
Abstract
A 37-year-old female patient was admitted to the hospital with a large liver mass, diagnosed as hepatic inflammatory myofibroblastic tumour (HIMT), characterized by unique radiographic features and predominantly occurring in adults. HIMT consists of myofibroblast spindle cells infiltrated by plasma cells and/or lymphocytes, with an unclear aetiology linked to factors like infection and immune response. Treatment typically involves surgical resection, with chemotherapy or targeted therapy options for cases of incomplete resection or metastasis, emphasizing the need for precise diagnosis and tailored treatment strategies.
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Affiliation(s)
- Hong Yang
- Ganzhou Institute of Medical Imaging, Ganzhou Key Laboratory of Medical Imaging and Artificial Intelligence, Medical Imaging Center, Ganzhou People's Hospital, The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou Hospital-Nanfang Hospital, Southern Medical University, Ganzhou, P.R. China
| | - Binglin Lai
- Ganzhou Institute of Medical Imaging, Ganzhou Key Laboratory of Medical Imaging and Artificial Intelligence, Medical Imaging Center, Ganzhou People's Hospital, The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou Hospital-Nanfang Hospital, Southern Medical University, Ganzhou, P.R. China
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Gautam V, Kumar V, Agarwal S, Gupta S. ABO Incompatible Living Donor Liver Transplantation in Children: A Single Centre Experience from India. J Clin Exp Hepatol 2024; 14:101340. [PMID: 38283705 PMCID: PMC10809086 DOI: 10.1016/j.jceh.2023.101340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 12/21/2023] [Indexed: 01/30/2024] Open
Abstract
Background In recent years, paediatric ABO incompatible (ABOi) living donor liver transplant (LT) has shown promising outcomes and can potentially eliminate organ shortage. This study aims to report paediatric ABOi LT experience, including short- and long-term outcomes. Methods It is a single-centre retrospective study. Out of 108 LTs, 20 were done in children. We compared the outcomes between ABOi (n = 20) and non-ABOi (n = 220) paediatric living donor liver transplantation (LDLT) performed during the study period. All the children received pre-LT desensitization therapy comprising rituximab and plasmapheresis targeting pre-LT isohemagglutinin (IHA) titres of ≤1:16. Results Out of 239 paediatric LDLTs from 2017 to 2022, 19 children (11 females) underwent 20 ABOi LTs (including one retransplant with an ABOi domino allograft) at a median age of 12 (12, 51) months, with the majority being biliary atresia (60%). The median change in CD19 cell%, CD20 cell%, and IHA titres after rituximab from day -14 to day -1 (before LT) was satisfactory. In the first 3 months following LT, acute cellular rejection, culture-proven sepsis, and biliary and vascular complications were seen in 10%, 20%, 20%, and 15%, respectively. None of the ABOi LT recipients developed antibody-mediated rejection. ABOi LT recipients, as compared to non-ABOi LT recipients, had a higher incidence of bile leaks and prolonged hospital stay, with the rest of the complications, including biliary strictures and long-term outcomes, being comparable. At a median follow-up of 21 (14, 33) months, 4 children expired (21%). Conclusion ABOi LT in children shows excellent outcomes and can be performed safely with prior desensitization when a compatible liver is unavailable.
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Affiliation(s)
- Vipul Gautam
- Department of Pediatric Hepatology, Centre for Liver and Biliary Sciences, Max Super Speciality Hospital, Saket, New Delhi, India
| | - Vikram Kumar
- Department of Pediatric Hepatology, Centre for Liver and Biliary Sciences, Max Super Speciality Hospital, Saket, New Delhi, India
| | - Shaleen Agarwal
- Department of Liver Transplant Surgery, Centre for Liver and Biliary Sciences, Max Super Speciality Hospital, Saket, New Delhi, India
| | - Subhash Gupta
- Department of Liver Transplant Surgery, Centre for Liver and Biliary Sciences, Max Super Speciality Hospital, Saket, New Delhi, India
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Kashimura M. Blood defense system - Proposal for a new concept of an immune system against blood borne pathogens comprising the liver, spleen and bone marrow. Scand J Immunol 2024; 99:e13363. [PMID: 38605529 DOI: 10.1111/sji.13363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 02/14/2024] [Accepted: 02/17/2024] [Indexed: 04/13/2024]
Abstract
Blood-borne pathogen (BBP) infections can rapidly progress to life-threatening sepsis and must therefore be promptly eliminated by the host's immune system. Intravascular macrophages of the liver sinusoid, splenic marginal zone and red pulp and perisinusoidal macrophage protrusions in the bone marrow (BM) directly phagocytose BBPs in the blood as an innate immune response. The liver, spleen and BM thereby work together as the blood defence system (BDS) in response to BBPs by exerting their different immunological roles. The liver removes the vast majority of these invading organisms via innate immunity, but their complete elimination is not possible without the actions of antibodies. Splenic marginal zone B cells promptly produce IgM and IgG antibodies against BBPs. The splenic marginal zone transports antigenic information from the innate to the adaptive immune systems. The white pulp of the spleen functions as adaptive immune tissue and produces specific and high-affinity antibodies with an immune memory against BBPs. The BM works to maintain immune memory by supporting the survival of memory B cells, memory T cells and long-lived plasma cells (LLPCs), all of which have dedicated niches. Furthermore, BM perisinusoidal naïve follicular B cells promptly produce IgM antibodies against BBPs in the BM sinusoid and the IgG memory B cells residing in the BM rapidly transform to plasma cells which produce high-affinity IgG antibodies upon reinfection. This review describes the complete immune defence characteristics of the BDS against BBPs through the collaboration of the liver, spleen and BM with combined different immunological roles.
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Affiliation(s)
- Makoto Kashimura
- Department of Hematology, Shinmatsudo Central General Hospital, Matsudo, Japan
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Sedik AA, Elgohary R, Khalifa E, Khalil WKB, I Shafey H, B Shalaby M, S O Gouida M, M Tag Y. Lauric acid attenuates hepato-metabolic complications and molecular alterations in high-fat diet-induced nonalcoholic fatty liver disease in rats. Toxicol Mech Methods 2024; 34:454-467. [PMID: 38166588 DOI: 10.1080/15376516.2023.2301344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 12/29/2023] [Indexed: 01/04/2024]
Abstract
Nonalcoholic fatty liver disease (NAFLD) has emerged as a major chronic liver illness characterized by increase of lipid content in the liver. This study investigated the role of lauric acid to treat NAFLD in male adult Sprague Dawley rats. In this study, to induce NAFLD in the rats, a high-fat diet (HFD) was administered for eight consecutive weeks. Lauric acid groups received lauric acid (250 and 500 mg/kg; orally), concurrently with HFD for eight consecutive weeks. Lauric acid could ameliorate the serum levels of TG, TC, ALT, AST, blood glucose, and insulin. Moreover, lauric acid significantly elevated the levels of SOD, GSH, catalase, and IL-10. Additionally, it lowered the hepatic levels of MDA, ROS, MPO, 4-HNE, interleukin (IL)-1β, and tumor necrosis factor (TNF-α). Furthermore, lauric acid significantly up-regulated the hepatic expression of IRS1, AMPK, PI3K, and SIRT1 genes. In parallel, lauric acid could improve the histopathological picture of the liver and reduce the liver apoptosis via decreasing the expression of annexin V (Anx V). Finally, our data proposed that lauric acid could be an effective candidate for the NAFLD treatment.
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Affiliation(s)
- Ahmed A Sedik
- Pharmacology Department, Medical Research and Clinical Studies Institute, National Research Centre, Cairo, Egypt
| | - Rania Elgohary
- Narcotics, Ergogenics and Poisons Department, Medical Research and Clinical Studies Institute, National Research Centre, Cairo, Egypt
| | - Eman Khalifa
- Oral Biology Department, Faculty of Oral and Dental Medicine, Delta University for Science and Technology, Mansoura, Egypt
| | | | - Heba I Shafey
- Cell Biology Department, National Research Centre, Giza, Egypt
| | - Mohamed B Shalaby
- Toxicology Research Department, Research Institute of Medical Entomology (RIME), General Organisation of Teaching Hospitals and Institutes (GOTHI), Ministry of Health and Population (MoHP), Cairo, Egypt
| | - Mona S O Gouida
- Genetics Unit, Faculty of Medicine, Children Hospital, Mansoura University, Mansoura, Egypt
| | - Yasmin M Tag
- Oral Biology Department, Faculty of Oral and Dental Medicine, Delta University for Science and Technology, Mansoura, Egypt
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Zhu M, Li P, Xu T, Zhang G, Xu Z, Wang X, Zhao L, Yang H. Combined exposure to lead and microplastics increased risk of glucose metabolism in mice via the Nrf2/NF-κB pathway. Environ Toxicol 2024; 39:2502-2511. [PMID: 38180308 DOI: 10.1002/tox.24125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 12/13/2023] [Accepted: 12/25/2023] [Indexed: 01/06/2024]
Abstract
The purpose of this study was to explore the effects of combined lead (Pb) and two types of microplastic (MP) (polyvinyl chloride [PVC] and polyethylene [PE]) exposure on glucose metabolism and investigate the role of the nuclear factor erythroid 2-related factor 2 (Nrf2)/nuclear factor-kappa B (NF-κB) signaling pathway in mediating these effects in mice. Adult C57BL/6J mice were randomly divided into four groups: control, Pb (100 mg/L), MPs (containing 10 mg/L PE and PVC), and Pb + MPs, each of which was treated with drinking water. Treatments were conducted for 6 weeks. Co-exposure to Pb + MPs exhibited increase glycosylated serum protein levels, insulin resistance, and damaged glucose tolerance compared with the control mice. Additionally, treatment with Pb + MPs caused more severe damage to hepatocytes than when exposed to them alone concomitantly, exposed to Pb + MPs exhibited improved the levels of interleukin-6, tumor necrosis factor-alpha, and malondialdehyde, but reduced superoxide dismutase, glutathione peroxidase, and catalase assay in livers. Furthermore, they increase the Kelch-like ECH-associated protein 1 (Keap1) and phosphorylated p-NF-κB protein levels but reduced the protein levels of heme oxygenase-1 and Nrf2, as well as increased Keap1 mRNA and Nrf2 mRNA. Co-exposure to Pb + MP impacts glucose metabolism via the Nrf2 /NF-κB pathway.
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Affiliation(s)
- Mengqiang Zhu
- Linyi Hedong District Maternal and Child Health Care Hospital, Linyi, China
| | - Peng Li
- Linyi Hedong District Maternal and Child Health Care Hospital, Linyi, China
| | | | - Guoyun Zhang
- Linyi Hedong District Maternal and Child Health Care Hospital, Linyi, China
| | - Zhuo Xu
- Linyi People's Hospital, Linyi, China
| | - Xiangrong Wang
- Linyi Hedong District Maternal and Child Health Care Hospital, Linyi, China
| | - Lulu Zhao
- Linyi Hedong District Maternal and Child Health Care Hospital, Linyi, China
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Lambooij JM, Tak T, Zaldumbide A, Guigas B. A 30-color spectral flow cytometry panel for comprehensive analysis of immune cell composition and macrophage subsets in mouse metabolic organs. Cytometry A 2024. [PMID: 38651815 DOI: 10.1002/cyto.a.24845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 04/05/2024] [Accepted: 04/10/2024] [Indexed: 04/25/2024]
Abstract
Obesity-induced chronic low-grade inflammation, also known as metaflammation, results from alterations of the immune response in metabolic organs and contributes to the development of fatty liver diseases and type 2 diabetes. The diversity of tissue-resident leukocytes involved in these metabolic dysfunctions warrants an in-depth immunophenotyping in order to elucidate disease etiology. Here, we present a 30-color, full spectrum flow cytometry panel, designed to (i) identify the major innate and adaptive immune cell subsets in murine liver and white adipose tissues and (ii) discriminate various tissue-specific myeloid subsets known to contribute to the development of metabolic dysfunctions. This panel notably allows for distinguishing embryonically-derived liver-resident Kupffer cells from newly recruited monocyte-derived macrophages and KCs. Furthermore, several adipose tissue macrophage (ATM) subsets, including perivascular macrophages, lipid-associated macrophages, and pro-inflammatory CD11c+ ATMs, can also be identified. Finally, the panel includes cell-surface markers that have been associated with metabolic activation of different macrophage and dendritic cell subsets. Altogether, our spectral flow cytometry panel allows for an extensive immunophenotyping of murine metabolic tissues, with a particular focus on metabolically-relevant myeloid cell subsets, and can easily be adjusted to include various new markers if needed.
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Affiliation(s)
- Joost M Lambooij
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
- Department of Cell & Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Tamar Tak
- Flow Cytometry Core Facility, Leiden University Medical Center, Leiden, The Netherlands
| | - Arnaud Zaldumbide
- Department of Cell & Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Bruno Guigas
- Leiden University Center of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
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Metherel AH, Valenzuela R, Klievik BJ, Cisbani G, Rotarescu RD, Gonzalez-Soto M, Cruciani-Guglielmacci C, Layé S, Magnan C, Mutch DM, Bazinet RP. Dietary docosahexaenoic acid (DHA) downregulates liver DHA synthesis by inhibiting eicosapentaenoic acid elongation. J Lipid Res 2024:100548. [PMID: 38649096 DOI: 10.1016/j.jlr.2024.100548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/13/2024] [Accepted: 04/18/2024] [Indexed: 04/25/2024] Open
Abstract
DHA is abundant in brain where it regulates cell survival, neurogenesis and neuroinflammation. DHA can be obtained from the diet or synthesized from alpha-linolenic acid (ALA; 18:3n-3) via a series of desaturation and elongation reactions occurring in the liver. Tracer studies suggest that dietary DHA can downregulate its own synthesis, but the mechanism remains undetermined and is the primary objective of this paper. First, we show by tracing 13C content (δ13C) of DHA via compound-specific isotope analysis (CSIA), that following low dietary DHA, the brain receives DHA synthesized from ALA. We then show that dietary DHA increases mouse liver and serum EPA, which is dependant on ALA. Furthermore, by CSIA we demonstrate that the source of increased EPA is slowed EPA metabolism, not increased DHA retroconversion as previously assumed. DHA feeding alone or with ALA lowered liver elongation of very long-chain (ELOVL2, EPA elongation) enzyme activity despite no change in protein content. To further evaluate the role of ELOVL2, a liver-specific Elovl2 knockout was generated showing that DHA feeding in the presence or absence of a functional liver ELOVL2 yields similar results. An enzyme competition assay for EPA elongation suggests both uncompetitive and non-competitive inhibition by DHA depending on DHA levels. To translate our findings, we show that DHA supplementation in men and women increases EPA levels in a manner dependent on a SNP (rs953413) in the ELOVL2 gene. In conclusion, we identify a novel feedback inhibition pathway where dietary DHA downregulates its liver synthesis by inhibiting EPA elongation.
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Affiliation(s)
- Adam H Metherel
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada.
| | | | - Brinley J Klievik
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Giulia Cisbani
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Ruxandra D Rotarescu
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Melissa Gonzalez-Soto
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
| | | | - Sophie Layé
- Université de Bordeaux, INRA, Bordeaux INP, NutriNeuro, Bordeaux, France
| | | | - David M Mutch
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Richard P Bazinet
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
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11
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Tran M, Gilling S, Wu J, Wang L, Shin DJ. miR-141/200c contributes to ethanol-mediated hepatic glycogen metabolism. Mol Metab 2024:101942. [PMID: 38642890 DOI: 10.1016/j.molmet.2024.101942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 04/15/2024] [Indexed: 04/22/2024] Open
Abstract
OBJECTIVE Hepatic glucose metabolism is profoundly perturbed by excessive alcohol intake. miR-141/200c expression is significantly induced by chronic ethanol feeding. This study aimed at identifying the role of miR-141/200c in glucose homeostasis during chronic ethanol exposure. METHODS WT and miR-141/200c KO mice were fed a control or an ethanol diet for 30 days, followed by a single binge of maltose dextrin or ethanol, respectively. Untargeted metabolomics analysis of hepatic primary metabolites was performed along with analyses for liver histology, gene expression, intracellular signaling pathways, and physiological relevance. Primary hepatocytes were used for mechanistic studies. RESULTS Mir-141/200c deficiency rewires hepatic glucose metabolism during chronic ethanol feeding, increasing the abundance of glucose intermediates including G6P, an allosteric activator for GS. miR-141/200c deficiency replenished glycogen depletion during chronic ethanol feeding accompanied by reduced GS phosphorylation in parallel with increased expression of PP1 glycogen targeting subunits. Moreover, miR-141/200c deficiency prevented ethanol-mediated increases in AMPK and CaMKK2 activity. Ethanol treatment reduced glycogen content in WT-hepatocytes, which was reversed by dorsomorphin, a selective AMPK inhibitor, while KO-hepatocytes displayed higher glycogen content than WT-hepatocytes in response to ethanol treatment. Furthermore, treatment of hepatocytes with A23187, a calcium ionophore activating CaMKK2, lowered glycogen content in WT-hepatocytes. Notably, the suppressive effect of A23187 on glycogen deposition was reversed by dorsomorphin, demonstrating that the glycogen depletion by A23187 is mediated by AMPK. KO-hepatocytes exhibited higher glycogen content than WT-hepatocytes in response to A23187. Finally, miR-141/200c deficiency led to improved glucose tolerance and insulin sensitivity during chronic ethanol feeding. CONCLUSIONS MIR-141/200c deficiency replenishes ethanol-mediated hepatic glycogen depletion through the regulation of GS activity and calcium signaling coupled with the AMPK pathway, improving glucose homeostasis and insulin sensitivity. These results underscore miR-141/200c as a potential therapeutic target for the management of alcohol intoxication.
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Affiliation(s)
- Melanie Tran
- Department of Physiology and Neurobiology, University of Connecticut. 75 N. Eagleville Rd, Storrs, CT 06269, USA; Division of Nephrology, Department of Medicine, University of Connecticut Health Center. 300 UConn Health Boulevard, Farmington, CT 06030-2202
| | - Shaynian Gilling
- Department of Physiology and Neurobiology, University of Connecticut. 75 N. Eagleville Rd, Storrs, CT 06269, USA
| | - Jianguo Wu
- Department of Physiology and Neurobiology, University of Connecticut. 75 N. Eagleville Rd, Storrs, CT 06269, USA; Lerner Research Institute at Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
| | - Li Wang
- Department of Internal Medicine, Section of Digestive Diseases, Yale University. 333 Cedar St, New Haven, CT 06510, USA
| | - Dong-Ju Shin
- Department of Physiology and Neurobiology, University of Connecticut. 75 N. Eagleville Rd, Storrs, CT 06269, USA.
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Ming X, Chen S, Li H, Wang Y, Zhou L, Lv Y. m6A RNA Methylation and Implications for Hepatic Lipid Metabolism. DNA Cell Biol 2024. [PMID: 38635960 DOI: 10.1089/dna.2023.0410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024] Open
Abstract
This review presents a summary of recent progress in research on the N6-methyladenosine (m6A) modification and regulatory roles in hepatic lipid metabolism. As the most abundant internal modification of eukaryotic RNA, the m6A modification is a dynamic and reversible process of the m6A enzyme system, which includes writers, erasers, and readers. m6A methylation depressed lipid synthesis and facilitated lipolysis in liver. The depletion of m6A methyltransferase Mettl14/Mettl3 raised fatty acid synthase (FAS), stearoyl-CoA desaturase-1 (SCD1), acetyl-CoA carboxylase (ACC), and elongase of very long chain fatty acids 6 (ELOVL6) in rodent liver, causing increases in liver weight, triglyceride (TG) production, and content in hepatocytes. FTO catalyzed m6A demethylation and the suppression m6A reader YTHDC2 promoted hepatocellular TG generation and hepatic steatosis in C57BL/6 mice through sterol regulatory element-binding protein 1c (SREBP-1c) signaling pathway, which upregulated the lipogenic genes FAS, SCD1, ACC, recombinant acetyl coenzyme a carboxylase alpha, and cell death-inducing DNA fragmentation factor-like effector C (CIDEC). Furthermore, FTO overexpression did not only enhance mitochondrial fusion to impair mitochondrial function and lipid oxidation but also promoted lipid peroxidation, accompanied by excessive TG in hepatocytes and rodent liver. Elevated m6A modification potently suppressed hepatic lipid accumulation, while the shrinkage of m6A modification arose hepatic lipid deposition. These findings have highlighted the beneficial role of m6A RNA methylation in hepatic lipid metabolism, potentially protecting liver from lipid metabolic disorders.
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Affiliation(s)
- Xinyue Ming
- Guangxi Key Laboratory of Diabetic Systems Medicine, Faculty of Basic Medical Sciences, Institute of Basic Medical Sciences, Guilin Medical University, Guilin, China
| | - Shirui Chen
- Guangxi Key Laboratory of Diabetic Systems Medicine, Faculty of Basic Medical Sciences, Institute of Basic Medical Sciences, Guilin Medical University, Guilin, China
| | - Huijuan Li
- Guangxi Key Laboratory of Diabetic Systems Medicine, Faculty of Basic Medical Sciences, Institute of Basic Medical Sciences, Guilin Medical University, Guilin, China
| | - Yun Wang
- Guangxi Key Laboratory of Diabetic Systems Medicine, Faculty of Basic Medical Sciences, Institute of Basic Medical Sciences, Guilin Medical University, Guilin, China
| | - Le Zhou
- Guangxi Key Laboratory of Diabetic Systems Medicine, Faculty of Basic Medical Sciences, Institute of Basic Medical Sciences, Guilin Medical University, Guilin, China
| | - Yuncheng Lv
- Guangxi Key Laboratory of Diabetic Systems Medicine, Faculty of Basic Medical Sciences, Institute of Basic Medical Sciences, Guilin Medical University, Guilin, China
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Henin G, Loumaye A, Deldicque L, Leclercq IA, Lanthier N. Unlocking liver health: Can tackling myosteatosis spark remission in metabolic dysfunction-associated steatotic liver disease? Liver Int 2024. [PMID: 38623714 DOI: 10.1111/liv.15938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/12/2024] [Accepted: 04/02/2024] [Indexed: 04/17/2024]
Abstract
Myosteatosis is highly prevalent in metabolic dysfunction-associated steatotic liver disease (MASLD) and could reciprocally impact liver function. Decreasing muscle fat could be indirectly hepatoprotective in MASLD. We conducted a review to identify interventions reducing myosteatosis and their impact on liver function. Non-pharmacological interventions included diet (caloric restriction or lipid enrichment), bariatric surgery and physical activity. Caloric restriction in humans achieving a mean weight loss of 3% only reduces muscle fat. Lipid-enriched diet increases liver fat in human with no impact on muscle fat, except sphingomyelin-enriched diet which reduces both lipid contents exclusively in pre-clinical studies. Bariatric surgery, hybrid training (resistance exercise and electric stimulation) or whole-body vibration in human decrease both liver and muscle fat. Physical activity impacts both phenotypes by reducing local and systemic inflammation, enhancing insulin sensitivity and modulating the expression of key mediators of the muscle-liver-adipose tissue axis. The combination of diet and physical activity acts synergistically in liver, muscle and white adipose tissue, and further decrease muscle and liver fat. Several pharmacological interventions (patchouli alcohol, KBP-089, 2,4-dinitrophenol methyl ether, adipoRon and atglistatin) and food supplementation (vitamin D or resveratrol) improve liver and muscle phenotypes in pre-clinical studies by increasing fatty acid oxidation and anti-inflammatory properties. These interventions are effective in reducing myosteatosis in MASLD while addressing the liver disease itself. This review supports that disturbances in inter-organ crosstalk are key pathophysiological mechanisms involved in MASLD and myosteatosis pathogenesis. Focusing on the skeletal muscle might offer new therapeutic strategies to treat MASLD by modulating the interactions between liver and muscles.
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Affiliation(s)
- Guillaume Henin
- Service d'Hépato-Gastroentérologie, Cliniques universitaires Saint-Luc, UCLouvain, Brussels, Belgium
- Laboratory of Hepatogastroenterology, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Audrey Loumaye
- Service d'Endocrinologie, Diabétologie et Nutrition, Cliniques universitaires Saint-Luc, UCLouvain, Brussels, Belgium
| | | | - Isabelle A Leclercq
- Laboratory of Hepatogastroenterology, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Nicolas Lanthier
- Service d'Hépato-Gastroentérologie, Cliniques universitaires Saint-Luc, UCLouvain, Brussels, Belgium
- Laboratory of Hepatogastroenterology, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain (UCLouvain), Brussels, Belgium
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Chaker D, Desterke C, Moniaux N, Bani MA, Oudrhiri N, Faivre J, Turhan AG, Bennaceur-Griscelli A, Griscelli F. Direct Reprogramming of Hepatocytes Into JAK/Stat-Dependent LGR5+ Liver Cells Able to Initiate Intrahepatic Cholangiocarcinoma. Stem Cells 2024; 42:301-316. [PMID: 38262709 DOI: 10.1093/stmcls/sxae006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 12/18/2023] [Indexed: 01/25/2024]
Abstract
Somatic cells that have been partially reprogrammed by the factors Oct4, Sox2, Klf4, and cMyc (OSKM) have been demonstrated to be potentially tumorigenic in vitro and in vivo due to the acquisition of cancer-associated genomic alterations and the absence of OSKM clearance over time. In the present study, we obtained partially reprogrammed, SSEA1-negative cells by transducing murine hepatocytes with Δ1Δ3-deleted adenoviruses that expressed the 4 OSKM factors. We observed that, under long-term 2D and 3D culture conditions, hepatocytes could be converted into LGR5-positive cells with self-renewal capacity that was dependent on 3 cross-signaling pathways: IL6/Jak/Stat3, LGR5/R-spondin, and Wnt/β-catenin. Following engraftment in syngeneic mice, LGR5-positive cells that expressed the cancer markers CD51, CD166, and CD73 were capable of forming invasive and metastatic tumors reminiscent of intrahepatic cholangiocarcinoma (ICC): they were positive for CK19 and CK7, featured associations of cord-like structures, and contained cuboidal and atypical cells with dissimilar degrees of pleomorphism and mitosis. The LGR5+-derived tumors exhibited a highly vascularized stroma with substantial fibrosis. In addition, we identified pro-angiogenic factors and signaling pathways involved in neo-angiogenesis and vascular development, which represent potential new targets for anti-angiogenic strategies to overcome tumor resistance to current ICC treatments.
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Affiliation(s)
- Diana Chaker
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMRS 1310, Université Paris Saclay, Villejuif, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMS 045 - CITHERA "Center for iPSC Cell Therapy," Genopole, National Infrastructure INGESTEM, Corbeil-Essonnes, Evry.France
| | - Christophe Desterke
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMRS 1310, Université Paris Saclay, Villejuif, France
- Université Paris-Saclay, Faculté de Médecine Kremlin Bicêtre, France
| | - Nicolas Moniaux
- Université Paris-Saclay, Faculté de Médecine Kremlin Bicêtre, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMRS1193, Villejuif, France
| | - Mohamed-Amine Bani
- Institut Gustave-Roussy, Département de Biologie et Pathologie Médicale, service de pathologie morphologique, Villejuif, France
- Gustave Roussy Cancer Centre, Université Paris-Saclay, Inserm US23, CNRS, AMMICa, Villejuif, France
| | - Noufissa Oudrhiri
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMRS 1310, Université Paris Saclay, Villejuif, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMS 045 - CITHERA "Center for iPSC Cell Therapy," Genopole, National Infrastructure INGESTEM, Corbeil-Essonnes, Evry.France
- Service d'Hématologie Biologique Laboratoire d'Onco-Hematologie moleculaire et Cytogénetique APHP, Hôpital Universitaire Paris Sud Paul-Brousse, Villejuif, France
| | - Jamila Faivre
- Université Paris-Saclay, Faculté de Médecine Kremlin Bicêtre, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMRS1193, Villejuif, France
- Service d'Hématologie Biologique Laboratoire d'Onco-Hematologie moleculaire et Cytogénetique APHP, Hôpital Universitaire Paris Sud Paul-Brousse, Villejuif, France
| | - Ali G Turhan
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMRS 1310, Université Paris Saclay, Villejuif, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMS 045 - CITHERA "Center for iPSC Cell Therapy," Genopole, National Infrastructure INGESTEM, Corbeil-Essonnes, Evry.France
- Université Paris-Saclay, Faculté de Médecine Kremlin Bicêtre, France
- Service d'Hématologie Biologique Laboratoire d'Onco-Hematologie moleculaire et Cytogénetique APHP, Hôpital Universitaire Paris Sud Paul-Brousse, Villejuif, France
- Service d'Hématologie Biologique, Hôpital Universitaire Paris Sud, (AP-HP) 94 Kremlin Bicêtre, France
| | - Annelise Bennaceur-Griscelli
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMRS 1310, Université Paris Saclay, Villejuif, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMS 045 - CITHERA "Center for iPSC Cell Therapy," Genopole, National Infrastructure INGESTEM, Corbeil-Essonnes, Evry.France
- Université Paris-Saclay, Faculté de Médecine Kremlin Bicêtre, France
- Service d'Hématologie Biologique Laboratoire d'Onco-Hematologie moleculaire et Cytogénetique APHP, Hôpital Universitaire Paris Sud Paul-Brousse, Villejuif, France
| | - Frank Griscelli
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMRS 1310, Université Paris Saclay, Villejuif, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMS 045 - CITHERA "Center for iPSC Cell Therapy," Genopole, National Infrastructure INGESTEM, Corbeil-Essonnes, Evry.France
- Institut Gustave-Roussy, Département de Biologie et Pathologie Médicale, service de pathologie morphologique, Villejuif, France
- Université Paris Descartes, Sorbonne Paris Cité, Faculté des Sciences Pharmaceutiques et Biologiques, Paris, France
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Gerussi A, Cappadona C, Bernasconi DP, Cristoferi L, Valsecchi MG, Carbone M, Invernizzi P, Asselta R. Improving predictive accuracy in primary biliary cholangitis: A new genetic risk score. Liver Int 2024. [PMID: 38619000 DOI: 10.1111/liv.15916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 03/05/2024] [Accepted: 03/11/2024] [Indexed: 04/16/2024]
Abstract
BACKGROUND AND AIMS Genetic variants influence primary biliary cholangitis (PBC) risk. We established and tested an accurate polygenic risk score (PRS) using these variants. METHODS Data from two Italian cohorts (OldIT 444 cases, 901 controls; NewIT 255 cases, 579 controls) were analysed. The latest international genome-wide meta-analysis provided effect size estimates. The PRS, together with human leukocyte antigen (HLA) status and sex, was included in an integrated risk model. RESULTS Starting from 46 non-HLA genes, 22 variants were selected. PBC patients in the OldIT cohort showed a higher risk score than controls: -.014 (interquartile range, IQR, -.023, .005) versus -.022 (IQR -.030, -.013) (p < 2.2 × 10-16). For genetic-based prediction, the area under the curve (AUC) was .72; adding sex increased the AUC to .82. Validation in the NewIT cohort confirmed the model's accuracy (.71 without sex, .81 with sex). Individuals in the top group, representing the highest 25%, had a PBC risk approximately 14 times higher than that of the reference group (lowest 25%; p < 10-6). CONCLUSION The combination of sex and a novel PRS accurately discriminated between PBC cases and controls. The model identified a subset of individuals at increased risk of PBC who might benefit from tailored monitoring.
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Affiliation(s)
- Alessio Gerussi
- Division of Gastroenterology, Center for Autoimmune Liver Diseases, European Reference Network on Hepatological Diseases (ERN RARE-LIVER), IRCCS Fondazione San Gerardo dei Tintori, Monza, Italy
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Claudio Cappadona
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- IRCCS Humanitas Research Hospital, Milan, Italy
| | - Davide Paolo Bernasconi
- Bicocca Bioinformatics Biostatistics and Bioimaging Centre-B4, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Laura Cristoferi
- Division of Gastroenterology, Center for Autoimmune Liver Diseases, European Reference Network on Hepatological Diseases (ERN RARE-LIVER), IRCCS Fondazione San Gerardo dei Tintori, Monza, Italy
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Bicocca Bioinformatics Biostatistics and Bioimaging Centre-B4, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Maria Grazia Valsecchi
- Bicocca Bioinformatics Biostatistics and Bioimaging Centre-B4, Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Biostatistics and Clinical Epidemiology, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
| | - Marco Carbone
- Division of Gastroenterology, Center for Autoimmune Liver Diseases, European Reference Network on Hepatological Diseases (ERN RARE-LIVER), IRCCS Fondazione San Gerardo dei Tintori, Monza, Italy
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Pietro Invernizzi
- Division of Gastroenterology, Center for Autoimmune Liver Diseases, European Reference Network on Hepatological Diseases (ERN RARE-LIVER), IRCCS Fondazione San Gerardo dei Tintori, Monza, Italy
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Rosanna Asselta
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- IRCCS Humanitas Research Hospital, Milan, Italy
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Pandey GK, Vadlamudi S, Currin KW, Moxley AH, Nicholas JC, McAfee JC, Broadaway KA, Mohlke KL. Liver regulatory mechanisms of noncoding variants at lipid and metabolic trait loci. HGG Adv 2024; 5:100275. [PMID: 38297830 PMCID: PMC10881423 DOI: 10.1016/j.xhgg.2024.100275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 02/02/2024] Open
Abstract
Genome-wide association studies (GWASs) have identified hundreds of risk loci for liver disease and lipid-related metabolic traits, although identifying their target genes and molecular mechanisms remains challenging. We predicted target genes at GWAS signals by integrating them with molecular quantitative trait loci for liver gene expression (eQTL) and liver chromatin accessibility QTL (caQTL). We predicted specific regulatory caQTL variants at four GWAS signals located near EFHD1, LITAF, ZNF329, and GPR180. Using transcriptional reporter assays, we determined that caQTL variants rs13395911, rs11644920, rs34003091, and rs9556404 exhibit allelic differences in regulatory activity. We also performed a protein binding assay for rs13395911 and found that FOXA2 differentially interacts with the alleles of rs13395911. For variants rs13395911 and rs11644920 in putative enhancer regulatory elements, we used CRISPRi to demonstrate that repression of the enhancers altered the expression of the predicted target and/or nearby genes. Repression of the element at rs13395911 reduced the expression of EFHD1, and repression of the element at rs11644920 reduced the expression of LITAF, SNN, and TXNDC11. Finally, we showed that EFHD1 is a metabolically active gene in HepG2 cells. Together, these results provide key steps to connect genetic variants with cellular mechanisms and help elucidate the causes of liver disease.
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Affiliation(s)
- Gautam K Pandey
- Department of Genetics, University of North Carolina, Chapel Hill, NC 27599, USA
| | | | - Kevin W Currin
- Department of Genetics, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Anne H Moxley
- Department of Genetics, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Jayna C Nicholas
- Department of Genetics, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Jessica C McAfee
- Department of Genetics, University of North Carolina, Chapel Hill, NC 27599, USA; UNC Neuroscience Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - K Alaine Broadaway
- Department of Genetics, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Karen L Mohlke
- Department of Genetics, University of North Carolina, Chapel Hill, NC 27599, USA.
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Katayama A, Maffucci P, Domanski A, Wang R, Sakai T. Abdominal Organ Transplantation: Noteworthy Literature in 2023. Semin Cardiothorac Vasc Anesth 2024:10892532241247122. [PMID: 38598365 DOI: 10.1177/10892532241247122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
This review highlights noteworthy literature published in 2023 and pertinent to anesthesiologists and critical care physicians caring for patients undergoing abdominal organ transplantation. We feature 9 studies from 593 peer-reviewed papers on pancreatic transplantation, 3 from 194 on intestinal transplantation, and 28 from over 4513 on kidney transplantation. The liver transplantation section includes a special focus on 20 studies from 5666 clinical trial publications. We explore a broad range of topics, including donor management, perioperative recipient management, and innovative pharmacologic and mechanical interventions tested for the improvement of patient and graft outcomes and survival.
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Affiliation(s)
- Akira Katayama
- Department of Anesthesiology and Resuscitology, Okayama University Hospital, Okayama, Japan
| | - Patrick Maffucci
- Department of Anesthesiology, Perioperative and Pain Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Alex Domanski
- Department of Anesthesiology, Perioperative and Pain Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ryan Wang
- Department of Anesthesiology, Perioperative and Pain Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Tetsuro Sakai
- Department of Anesthesiology and Perioperative Medicine, UPMC (University of Pittsburgh Medical Center), Pittsburgh, PA, USA
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18
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Pinto AT, Lukacs-Kornek V. The role of dendritic cells in MASH: friends or foes? Front Immunol 2024; 15:1379225. [PMID: 38650949 PMCID: PMC11033439 DOI: 10.3389/fimmu.2024.1379225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 03/21/2024] [Indexed: 04/25/2024] Open
Abstract
Dendritic cells (DCs) are major antigen-presenting cells that connect innate and adaptive immunity. Hepatic DCs are less activated and contribute to maintain the tolerogenic environment of the liver under steady state. Several studies indicated DCs in metabolic dysfunction-associated steatohepatitis (MASH), representing a substantial burden on healthcare systems due to its association with liver-related morbidity and mortality. Studies highlighted the potential disease-promoting role of liver DCs in the development of MASH while other experimental systems suggested their protective role. This review discusses this controversy and the current understanding of how DCs affect the pathogenesis of MASH.
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Affiliation(s)
| | - Veronika Lukacs-Kornek
- Institute of Molecular Medicine and Experimental Immunology, University Hospital Bonn of the Rheinische Friedrich-Wilhelms-University, Bonn, Germany
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19
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Perocheau D, Gurung S, Touramanidou L, Duff C, Sharma G, Sebire N, Finn PF, Cavedon A, Siddiqui S, Rice L, Martini PG, Frassetto A, Baruteau J. Ex vivo precision-cut liver slices model disease phenotype and monitor therapeutic response for liver monogenic diseases. F1000Res 2024; 12:1580. [PMID: 38618017 PMCID: PMC11016166 DOI: 10.12688/f1000research.142014.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/03/2024] [Indexed: 04/16/2024] Open
Abstract
Background In academic research and the pharmaceutical industry, in vitro cell lines and in vivo animal models are considered as gold standards in modelling diseases and assessing therapeutic efficacy. However, both models have intrinsic limitations, whilst the use of precision-cut tissue slices can bridge the gap between these mainstream models. Precision-cut tissue slices combine the advantage of high reproducibility, studying all cell sub-types whilst preserving the tissue matrix and extracellular architecture, thereby closely mimicking a mini-organ. This approach can be used to replicate the biological phenotype of liver monogenic diseases using mouse models. Methods Here, we describe an optimised and easy-to-implement protocol for the culture of sections from mouse livers, enabling its use as a reliable ex-vivo model to assess the therapeutic screening of inherited metabolic diseases. Results We show that precision-cut liver sections can be a reliable model for recapitulating the biological phenotype of inherited metabolic diseases, exemplified by common urea cycle defects such as citrullinemia type 1 and argininosuccinic aciduria, caused by argininosuccinic synthase (ASS1) and argininosuccinic lyase (ASL) deficiencies respectively. Conclusions Therapeutic response to gene therapy such as messenger RNA replacement delivered via lipid nanoparticles can be monitored, demonstrating that precision-cut liver sections can be used as a preclinical screening tool to assess therapeutic response and toxicity in monogenic liver diseases.
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Affiliation(s)
- Dany Perocheau
- Great Ormond Street Institute of Child Health, University College London, London, England, WC1N 1EH, UK
| | - Sonam Gurung
- Great Ormond Street Institute of Child Health, University College London, London, England, WC1N 1EH, UK
| | - Loukia Touramanidou
- Great Ormond Street Institute of Child Health, University College London, London, England, WC1N 1EH, UK
| | - Claire Duff
- Great Ormond Street Institute of Child Health, University College London, London, England, WC1N 1EH, UK
| | - Garima Sharma
- Great Ormond Street Institute of Child Health, University College London, London, England, WC1N 1EH, UK
| | - Neil Sebire
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, England, WC1N 3JH, UK
| | | | | | | | - Lisa Rice
- Moderna Inc., Cambridge, MA 02139, USA
| | | | | | - Julien Baruteau
- Great Ormond Street Institute of Child Health, University College London, London, England, WC1N 1EH, UK
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, England, WC1N 3JH, UK
- National Institute of Health Research, Great Ormond Street Biomedical Research Centre, London, WC1N 1EH, UK
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20
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Lebwohl M, Merola JF, Strober B, Armstrong A, Yoshizaki A, Gisondi P, Szilagyi B, Peterson L, de Cuyper D, Cross N, Davies O, Gottlieb AB. Bimekizumab safety in moderate to severe plaque psoriasis: Rates of hepatic events and changes in liver parameters over 2 years in randomized phase 3/3b trials. J Am Acad Dermatol 2024:S0190-9622(24)00568-1. [PMID: 38588819 DOI: 10.1016/j.jaad.2024.03.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/23/2024] [Accepted: 03/12/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND Patients with psoriasis are at increased risk of liver function abnormalities. OBJECTIVE Explore rates of hepatic treatment-emergent adverse events (TEAEs) and changes in liver parameters in bimekizumab-treated patients with psoriasis. METHODS Data are reported from five phase 3/3b trials over 2 years. Hepatic TEAEs, laboratory elevations in alanine aminotransferase (ALT) or aspartate aminotransferase (AST), and changes in clinical markers of liver fibrosis (Fibrosis-4 [FIB-4] Index and AST to Platelet Ratio Index [APRI]) are reported. TEAEs are presented using exposure-adjusted incidence rates (EAIRs) per 100 patient-years (PY). RESULTS 2,186 patients received ≥1 bimekizumab dose. Over 2 years, the EAIR of hepatic TEAEs was 3.5/100 PY and did not increase from first to second year. 2-year EAIRs of ALT/AST elevations >3x and >5x ULN were 2.3 and 0.6/100 PY; rates were similar to placebo, adalimumab, secukinumab, and ustekinumab during controlled study periods. FIB-4 and APRI scores did not increase through 2 years, regardless of fibrosis risk at baseline. LIMITATIONS Obesity, diabetes, dyslipidemia, chronic alcohol consumption, and medication changes are confounding factors for hepatic dysfunction. CONCLUSION Rates of hepatic adverse events with bimekizumab were consistent through 2 years; incidences of transaminase elevations were similar to comparators during phase 3/3b controlled study periods.
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Affiliation(s)
- Mark Lebwohl
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA;.
| | - Joseph F Merola
- Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Bruce Strober
- Department of Dermatology, Yale University, New Haven, Connecticut, USA;; Central Connecticut Dermatology Research, Cromwell, Connecticut, USA
| | - April Armstrong
- University of California Los Angeles (UCLA), Los Angeles, California, USA
| | - Ayumi Yoshizaki
- Department of Dermatology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan;; Department of Clinical Cannabinoid Research, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Paolo Gisondi
- Section of Dermatology and Venereology, Department of Medicine, University of Verona, Verona, Italy
| | | | | | | | - Nancy Cross
- UCB Pharma, Morrisville, North Carolina, USA
| | | | - Alice B Gottlieb
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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21
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Patel DJ, LeCompte MT, Jin Kim H, Gleeson EM. "The Prognostic Role of Aspartate Transaminase to Platelet Ratio Index (APRI) on Outcomes Following Non-emergent Minor Hepatectomy". Am Surg 2024:31348241244645. [PMID: 38579287 DOI: 10.1177/00031348241244645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2024]
Abstract
INTRODUCTION Fibrosis and cirrhosis are associated with worse outcomes after hepatectomy. Aspartate transaminase to platelet ratio index (APRI) is associated with fibrosis and cirrhosis in hepatitis C patients. However, APRI has not been studied to predict outcomes after hepatectomy in patients without viral hepatitis. METHODS We reviewed the ACS-NSQIP dataset to identify patients who underwent a minor hepatectomy between 2014 and 2021. We excluded patients with viral hepatitis or ascites as well as patients who underwent emergent operations or biliary reconstruction. APRI was calculated using the following equation: (AST/40)/(platelet count) × 100. APRI ≥0.7 was used to identify significant fibrosis. Univariable analysis was performed to identify factors associated with APRI ≥0.7, transfusion, serious morbidity, overall morbidity, and 30-day mortality. Multivariable logistic regression was performed to identify adjusted predictors of these outcomes. RESULTS Of the 18,069 patients who met inclusion criteria, 1630 (9.0%) patients had an APRI ≥0.7. A perioperative blood transfusion was administered to 2139 (11.8%). Overall morbidity, serious morbidity, and mortality were experienced by 3162 (17.5%), 2475 (13.7%), and 131 (.7%) patients, respectively. APRI ≥0.7 was an independent predictor of transfusion (adjusted OR: 1.48 [1.26-1.74], P < .001), overall morbidity (1.17 [1.02-1.33], P = .022), and mortality (1.97 [1.22-3.06], P = .004). Transfusion was an independent predictor of overall morbidity (3.31 [2.99-3.65], P < .001), serious morbidity (3.70 [3.33-4.11], P < .001), and mortality (5.73 [4.01-8.14], P < .001). CONCLUSIONS APRI ≥0.7 is associated with perioperative transfusion, overall morbidity, and 30-day mortality. APRI may serve as a noninvasive tool to risk stratify patients prior to elective minor hepatectomy.
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Affiliation(s)
- Dhruv J Patel
- Department of Surgery, University of North Carolina at Chapel Hill Medical Center, Chapel Hill, NC, USA
| | - Michael T LeCompte
- Department of Surgical Oncology, University of North Carolina Rex Hospital, Raleigh, NC, USA
- Department of Surgery, Division of Surgical Oncology, University of North Carolina at Chapel Hill Medical Center, Chapel Hill, NC 27599-7050, USA
| | - Hong Jin Kim
- Department of Surgery, Division of Surgical Oncology, University of North Carolina at Chapel Hill Medical Center, Chapel Hill, NC 27599-7050, USA
| | - Elizabeth M Gleeson
- Department of Surgery, Division of Surgical Oncology, University of North Carolina at Chapel Hill Medical Center, Chapel Hill, NC 27599-7050, USA
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22
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Castellano-Castillo D, Ramos-Molina B, Frutos MD, Arranz-Salas I, Reyes-Engel A, Queipo-Ortuño MI, Cardona F. RNA expression changes driven by altered epigenetics status related to NASH etiology. Biomed Pharmacother 2024; 174:116508. [PMID: 38579398 DOI: 10.1016/j.biopha.2024.116508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/22/2024] [Accepted: 03/27/2024] [Indexed: 04/07/2024] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a growing health problem due to the increased obesity rates, among other factors. In its more severe stage (NASH), inflammation, hepatocellular ballooning and fibrosis are present in the liver, which can further evolve to total liver dysfunction or even hepatocarcinoma. As a metabolic disease, is associated to environmental factors such as diet and lifestyle conditions, which in turn can influence the epigenetic landscape of the cells, affecting to the gene expression profile and chromatin organization. In this study we performed ATAC-sequencing and RNA-sequencing to interrogate the chromatin status of liver biopsies in subjects with and without NASH and its effects on RNA transcription and NASH etiology. NASH subjects showed transcriptional downregulation for lipid and glucose metabolic pathways (e.g., ABC transporters, AMPK, FoxO or insulin pathways). A total of 229 genes were differentially enriched (ATAC and mRNA) in NASH, which were mainly related to lipid transport activity, nuclear receptor-binding, dicarboxylic acid transporter, and PPARA lipid regulation. Interpolation of ATAC data with known liver enhancer regions showed differential openness at 8 enhancers, some linked to genes involved in lipid metabolism, (i.e., FASN) and glucose homeostasis (i.e., GCGR). In conclusion, the chromatin landscape is altered in NASH patients compared to patients without this liver condition. This alteration might cause mRNA changes explaining, at least partially, the etiology and pathophysiology of the disease.
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Affiliation(s)
- Daniel Castellano-Castillo
- Unidad de Gestión Clínica Intercentros de Oncología Médica, Hospitales Universitarios Regional y Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga (IBIMA)-CIMES-UMA, Málaga 29010, Spain
| | - Bruno Ramos-Molina
- Obesity, Diabetes and Metabolism Laboratory, Biomedical Research Institute of Murcia (IMIB), Murcia 30120, Spain.
| | - María Dolores Frutos
- General and Digestive System Surgery Department, Virgen de la Arrixaca University Hospital, Murcia 31020, Spain
| | - Isabel Arranz-Salas
- Instituto de Investigación Biomédica de Málaga-Plataforma BIONAND (IBIMA), Virgen de la Victoria University Hospital, Malaga University, 2ª Planta, Campus Teatinos S/N, Málaga 29010, Spain; Department of Human Physiology, Human Histology, Anatomical Pathology and Physical Education, Malaga University, Málaga 29010, Spain; 11 Department of Anatomical Pathology, Virgen de la Victoria Hospital, Málaga, Spain
| | - Armando Reyes-Engel
- Departamento de especialidades Quirúrgicas, Bioquímica e Inmunología, Facultad de Medicina, Universidad de Málaga, 29010, Spain
| | - María Isabel Queipo-Ortuño
- Unidad de Gestión Clínica Intercentros de Oncología Médica, Hospitales Universitarios Regional y Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga (IBIMA)-CIMES-UMA, Málaga 29010, Spain; Departamento de especialidades Quirúrgicas, Bioquímica e Inmunología, Facultad de Medicina, Universidad de Málaga, 29010, Spain.
| | - Fernando Cardona
- Departamento de especialidades Quirúrgicas, Bioquímica e Inmunología, Facultad de Medicina, Universidad de Málaga, 29010, Spain
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23
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Jalil S, Keskinen T, Juutila J, Sartori Maldonado R, Euro L, Suomalainen A, Lapatto R, Kuuluvainen E, Hietakangas V, Otonkoski T, Hyvönen ME, Wartiovaara K. Genetic and functional correction of argininosuccinate lyase deficiency using CRISPR adenine base editors. Am J Hum Genet 2024; 111:714-728. [PMID: 38579669 PMCID: PMC11023919 DOI: 10.1016/j.ajhg.2024.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 03/06/2024] [Accepted: 03/06/2024] [Indexed: 04/07/2024] Open
Abstract
Argininosuccinate lyase deficiency (ASLD) is a recessive metabolic disorder caused by variants in ASL. In an essential step in urea synthesis, ASL breaks down argininosuccinate (ASA), a pathognomonic ASLD biomarker. The severe disease forms lead to hyperammonemia, neurological injury, and even early death. The current treatments are unsatisfactory, involving a strict low-protein diet, arginine supplementation, nitrogen scavenging, and in some cases, liver transplantation. An unmet need exists for improved, efficient therapies. Here, we show the potential of a lipid nanoparticle-mediated CRISPR approach using adenine base editors (ABEs) for ASLD treatment. To model ASLD, we first generated human-induced pluripotent stem cells (hiPSCs) from biopsies of individuals homozygous for the Finnish founder variant (c.1153C>T [p.Arg385Cys]) and edited this variant using the ABE. We then differentiated the hiPSCs into hepatocyte-like cells that showed a 1,000-fold decrease in ASA levels compared to those of isogenic non-edited cells. Lastly, we tested three different FDA-approved lipid nanoparticle formulations to deliver the ABE-encoding RNA and the sgRNA targeting the ASL variant. This approach efficiently edited the ASL variant in fibroblasts with no apparent cell toxicity and minimal off-target effects. Further, the treatment resulted in a significant decrease in ASA, to levels of healthy donors, indicating restoration of the urea cycle. Our work describes a highly efficient approach to editing the disease-causing ASL variant and restoring the function of the urea cycle. This method relies on RNA delivered by lipid nanoparticles, which is compatible with clinical applications, improves its safety profile, and allows for scalable production.
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Affiliation(s)
- Sami Jalil
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Timo Keskinen
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Juhana Juutila
- Faculty of Biological and Environmental Sciences University of Helsinki, Helsinki, Finland; Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Rocio Sartori Maldonado
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Liliya Euro
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Anu Suomalainen
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Risto Lapatto
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland; New Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Emilia Kuuluvainen
- Faculty of Biological and Environmental Sciences University of Helsinki, Helsinki, Finland; Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Ville Hietakangas
- Faculty of Biological and Environmental Sciences University of Helsinki, Helsinki, Finland; Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Timo Otonkoski
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland; New Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Mervi E Hyvönen
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland; New Children's Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Kirmo Wartiovaara
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland; Clinical Genetics, Helsinki University Hospital, Helsinki, Finland.
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24
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Tokorodani R, Kume T, Daisaki H, Hayashi N, Iwasa H, Yamagami T. Quantitative analysis of liver standardized uptake value repeatability in SPECT/CT implications for clinical practice. Biomed Phys Eng Express 2024; 10:035020. [PMID: 38527335 DOI: 10.1088/2057-1976/ad3759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/25/2024] [Indexed: 03/27/2024]
Abstract
Purpose. The aim of this study was to assess the repeatability of the SUV normalized by liver volume (SUVL) between two liver receptor SPECT/CT studies performed on different days in patients with ICG-R15 values within normal range.Methods. 935 patients who underwent liver receptor scintigraphy between January 2010 and August 2018 were included. Patients who underwent liver resection, hepatic arterial embolization or had ICG-R15 >10% between scans were excluded, and 38 patients were finally included in the analysis. The repeatability of SUVL between scans was assessed using the intraclass correlation coefficient (ICC) (1.1) between SUVLmax, SUVLpeak and SUVLmean at the first and second scan and the additive and proportional errors from the Bland-Altman analysis.Results. In ICC (1,1), SUVLmax, SUVLpeak and SUVLmean were all greater than 0.8, indicating almost perfect repeatability; neither additive nor proportional errors were observed in the Bland-Altman analysis.Conclusions. In patients with ICG-R15 values within the normal range, the SUV Liver (SUVL) between two liver receptor SPECT/CT studies performed on different days was repeatability over time. It was suggested that the SUVL of liver receptor scintigraphy could be an indicator that could be used for follow-up over time in the assessment of liver fibrosis.
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Affiliation(s)
- Ryotaro Tokorodani
- Division of Radiology, Department of Medical Technology, Kochi Medical School Hospital, Nankoku, Kochi 783-8505, Japan
| | - Toshiaki Kume
- Department of Radiological Technology, Kochi Health Sciences Center, Kochi, Japan
| | - Hiromitu Daisaki
- Departments of Gunma Prefectural College of Health Sciences, Maebashi, Japan
| | - Naoya Hayashi
- Division of Radiology, Department of Medical Technology, Kochi Medical School Hospital, Nankoku, Kochi 783-8505, Japan
| | - Hitomi Iwasa
- Department of Diagnostic and Interventional Radiology, Kochi Medical School, Kochi University, Nankoku, Japan
| | - Takuji Yamagami
- Department of Diagnostic and Interventional Radiology, Kochi Medical School, Kochi University, Nankoku, Japan
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25
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Favrod-Coune T, Lidsky D, Vionnet J, Magini G, Déglon J, Broers B. A false positive hair ethylglucuronide dosage in an alcohol abstinent patient after liver transplantation: a case report. Front Med (Lausanne) 2024; 11:1363012. [PMID: 38633301 PMCID: PMC11021601 DOI: 10.3389/fmed.2024.1363012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 03/13/2024] [Indexed: 04/19/2024] Open
Abstract
The use of direct alcohol biomarkers (ethylglucuronide and phosphatidylethanol) has recently been implemented in a clinical setting. Due to their low alcohol detection threshold, high sensitivity, and specificity, these tools are very useful in the pre- and post-liver transplantation setting, where the history and physical signs are not always reliable. However, the interpretation of the results can sometimes be misleading and must be integrated into a global clinical evaluation and, more importantly, in the clinical context of each patient. We present here a case report illustrating a false-positive hair ethylglucuronide caused by the application of a capillary gel in an abstinent patient after liver transplantation. This reminds us that even the most accurate laboratory tests must be interpreted with caution.
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Affiliation(s)
| | - Déborah Lidsky
- Hôpitaux Universitaires de Genève (HUG), Genève, Switzerland
| | - Julien Vionnet
- Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Giulia Magini
- Hôpitaux Universitaires de Genève (HUG), Genève, Switzerland
| | - Julien Déglon
- Hôpitaux Universitaires de Genève (HUG), Genève, Switzerland
| | - Barbara Broers
- Hôpitaux Universitaires de Genève (HUG), Genève, Switzerland
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26
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Suarez-Zdunek MA, Arentoft NS, Krohn PS, Lauridsen EHE, Afzal S, Høgh J, Thomsen MT, Knudsen AD, Nordestgaard BG, Hillingsø JG, Villadsen GE, Holland-Fischer P, Rasmussen A, Fialla AD, Feldt-Rasmussen U, Nielsen SD. Prevalence of hyperthyroidism and hypothyroidism in liver transplant recipients and associated risk factors. Sci Rep 2024; 14:7828. [PMID: 38570629 PMCID: PMC10991542 DOI: 10.1038/s41598-024-58544-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 04/01/2024] [Indexed: 04/05/2024] Open
Abstract
The prevalence of hyperthyroidism and hypothyroidism and associated risk factors are unknown in liver transplant recipients. We aimed to determine the prevalence of hyperthyroidism and hypothyroidism and associated risk factors in liver transplant recipients and to compare it with controls from the general population. As part of the Danish Comorbidity in Liver Transplant Recipients (DACOLT) Study, all Danish liver transplant recipients over the age of 20 were invited for measurements of concentrations of thyrotropin and thyroid hormones. The prevalence of hyperthyroidism and hypothyroidism was compared to age- and sex-matched controls from the Copenhagen General Population Study. Using logistic regression adjusted for age, sex, smoking, and body-mass index, we investigated potential risk factors. We recruited 489 liver transplant recipients and 1808 controls. Among liver transplant recipients, 14 (2.9%) had hyperthyroidism compared with 21 (1.2%) of controls (adjusted odds ratio [aOR] 2.24, 95% confidence interval [CI] 1.05-4.75, P = 0.04), while 42 (5.7%) had hypothyroidism compared with 139 (7.7%) of controls (aOR 0.68, 95% CI 0.43-1.08, P = 0.10). Female sex, and autoimmune hepatitis and primary sclerosing cholangitis as causes of transplantation were associated with hyperthyroidism after adjustments. Age, female sex, and autoimmune liver diseases as cause of transplantation were associated with hypothyroidism after adjustments. DACOLT is registered in ClinicalTrials.gov (NCT04777032).
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Affiliation(s)
- Moises Alberto Suarez-Zdunek
- Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Esther Møllers Vej 6, 2100, Copenhagen, Denmark
| | - Nicoline Stender Arentoft
- Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Esther Møllers Vej 6, 2100, Copenhagen, Denmark
| | - Paul Suno Krohn
- Department of Surgical Gastroenterology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | | | - Shoaib Afzal
- Department of Clinical Biochemistry, Copenhagen University Hospital - Herlev and Gentofte, Herlev, Denmark
- Copenhagen General Population Study, Copenhagen University Hospital - Herlev and Gentofte, Herlev, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Julie Høgh
- Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Esther Møllers Vej 6, 2100, Copenhagen, Denmark
| | - Magda Teresa Thomsen
- Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Esther Møllers Vej 6, 2100, Copenhagen, Denmark
| | - Andreas Dehlbæk Knudsen
- Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Esther Møllers Vej 6, 2100, Copenhagen, Denmark
| | - Børge Grønne Nordestgaard
- Department of Clinical Biochemistry, Copenhagen University Hospital - Herlev and Gentofte, Herlev, Denmark
- Copenhagen General Population Study, Copenhagen University Hospital - Herlev and Gentofte, Herlev, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jens Georg Hillingsø
- Department of Surgical Gastroenterology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | | | - Allan Rasmussen
- Department of Surgical Gastroenterology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Anette Dam Fialla
- Department of Gastroenterology, Odense University Hospital, Odense, Denmark
| | - Ulla Feldt-Rasmussen
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department Endocrinology and Metabolism, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Susanne D Nielsen
- Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Esther Møllers Vej 6, 2100, Copenhagen, Denmark.
- Department of Surgical Gastroenterology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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27
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Mijangos-Trejo A, Gómez-Mendoza R, Ramos-Ostos MH, Castro-Narro G, Uribe M, Juárez-Hernández E, López-Méndez I. Diagnostic Accuracy of the Triglyceride-Glucose Index (TyG), TyG Body Mass Index, and TyG Waist Circumference Index for Liver Steatosis Detection. Diagnostics (Basel) 2024; 14:762. [PMID: 38611675 PMCID: PMC11011440 DOI: 10.3390/diagnostics14070762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 03/28/2024] [Accepted: 03/31/2024] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND The triglyceride-glucose index (TyG) and a combination of body mass index (BMI) and waist circumference (WC) have been proposed as predictive scores for liver steatosis (LS). The aim of this study was to determine the diagnostic accuracy of these indices compared with controlled attenuation parameters (CAPs) and other predictive scores of LS. METHODS A retrospective analysis of patients who attended a check-up unit in 2021 was performed. LS was determined by CAP. Anthropometric and biochemical parameters for calculating TyG, TyG-BMI, TyG-WC, fatty liver index, and hepatic steatosis index were obtained. ROC curve was used to establish the best cut-off point of each TyG index for LS detection. The accuracy was determined for all patients, as well as for overweight and diabetic patients. RESULTS Medical records of 855 patients with a median age of 48 [IQR, 44-54] years and a BMI of 25.7 [IQR 23.4-28.1] kg/m2 were included. According to CAP, LS prevalence was 31.8% (n = 272). TyG-BMI and TyG-WC show better AUCs compared with CAP (0.82, 0.81), FLI (0.96, both), and HSI (0.93, 0.85). For diabetic patients, TyG-WC shows an AUC of 0.70. Meanwhile, TyG-BMI shows better accuracy (0.75) compared with CAP. CONCLUSIONS TyG-BMI and TyG-WC showed a superior predictive accuracy for detecting LS compared with the TyG index.
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Affiliation(s)
- Alejandra Mijangos-Trejo
- Gastroenterology and Obesity Unit, Medica Sur Clinic & Foundation, Mexico City 14050, Mexico; (A.M.-T.); (R.G.-M.); (M.U.)
| | - Raúl Gómez-Mendoza
- Gastroenterology and Obesity Unit, Medica Sur Clinic & Foundation, Mexico City 14050, Mexico; (A.M.-T.); (R.G.-M.); (M.U.)
| | | | - Graciela Castro-Narro
- Transplants and Hepatology Unit, Medica Sur Clinic & Foundation, Mexico City 14050, Mexico;
| | - Misael Uribe
- Gastroenterology and Obesity Unit, Medica Sur Clinic & Foundation, Mexico City 14050, Mexico; (A.M.-T.); (R.G.-M.); (M.U.)
| | - Eva Juárez-Hernández
- Translational Research Unit, Medica Sur Clinic & Foundation, Mexico City 14050, Mexico
| | - Iván López-Méndez
- Transplants and Hepatology Unit, Medica Sur Clinic & Foundation, Mexico City 14050, Mexico;
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28
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Hordeaux J, Lamontagne RJ, Song C, Buchlis G, Dyer C, Buza EL, Ramezani A, Wielechowski E, Greig JA, Chichester JA, Bell P, Wilson JM. High-dose systemic adeno-associated virus vector administration causes liver and sinusoidal endothelial cell injury. Mol Ther 2024; 32:952-968. [PMID: 38327046 DOI: 10.1016/j.ymthe.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 12/15/2023] [Accepted: 02/02/2024] [Indexed: 02/09/2024] Open
Abstract
We analyzed retrospective data from toxicology studies involving administration of high doses of adeno-associated virus expressing different therapeutic transgenes to 21 cynomolgus and 15 rhesus macaques. We also conducted prospective studies to investigate acute toxicity following high-dose systemic administration of enhanced green fluorescent protein-expressing adeno-associated virus to 10 rhesus macaques. Toxicity was characterized by transaminitis, thrombocytopenia, and alternative complement pathway activation that peaked on post-administration day 3. Although most animals recovered, some developed ascites, generalized edema, hyperbilirubinemia, and/or coagulopathy that prompted unscheduled euthanasia. Study endpoint livers from animals that recovered and from unscheduled necropsies of those that succumbed to toxicity were analyzed via hypothesis-driven histopathology and unbiased single-nucleus RNA sequencing. All liver cell types expressed high transgene transcript levels at early unscheduled timepoints that subsequently decreased. Thrombocytopenia coincided with sinusoidal platelet microthrombi and sinusoidal endothelial injury identified via immunohistology and single-nucleus RNA sequencing. Acute toxicity, sinusoidal injury, and liver platelet sequestration were similarly observed with therapeutic transgenes and enhanced green fluorescent protein at doses ≥1 × 1014 GC/kg, suggesting it was the consequence of high-dose systemic adeno-associated virus administration, not green fluorescent protein toxicity. These findings highlight a potential toxic effect of high-dose intravenous adeno-associated virus on nonhuman primate liver microvasculature.
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Affiliation(s)
- Juliette Hordeaux
- Gene Therapy Program, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - R Jason Lamontagne
- Gene Therapy Program, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Chunjuan Song
- Gene Therapy Program, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - George Buchlis
- Gene Therapy Program, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Cecilia Dyer
- Gene Therapy Program, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Elizabeth L Buza
- Gene Therapy Program, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ali Ramezani
- Gene Therapy Program, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Erik Wielechowski
- Gene Therapy Program, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jenny A Greig
- Gene Therapy Program, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jessica A Chichester
- Gene Therapy Program, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Peter Bell
- Gene Therapy Program, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - James M Wilson
- Gene Therapy Program, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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29
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Yu J, Fu R, Buhe A, Xu B. Quercetin attenuates lipopolysaccharide-induced hepatic inflammation by modulating autophagy and necroptosis. Poult Sci 2024; 103:103719. [PMID: 38603936 PMCID: PMC11017357 DOI: 10.1016/j.psj.2024.103719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 03/25/2024] [Accepted: 03/31/2024] [Indexed: 04/13/2024] Open
Abstract
Lipopolysaccharide (LPS) from Gram-negative bacteria initially induces liver inflammation with proinflammatory cytokines expressions. However, the underlying hepatoprotective mechanism of quercetin on LPS-induced hepatic inflammation remains unclear. Specific pathogen-free chicken embryos (n = 120) were allocated control vehicle, PBS with or without ethanol vehicle, LPS (125 ng/egg) with or without quercetin treatment (10, 20, or 40 nmol/egg, respectively), quercetin groups (10, 20, or 40 nmol/egg). Fifteen-day-old embryonated eggs were inoculated abovementioned solutions via the allantoic cavity. At embryonic d 19, the livers of the embryos were collected for histopathological examination, RNA extraction, real-time polymerase chain reaction, and immunohistochemistry investigation. We found that the liver presented inflammatory response (heterophils infiltration) after LPS induction. The LPS-induced mRNA expressions of inflammation-related factors (TLR4, TNFα, IL-1β, IL-10, IL-6, MYD88, NF-κB1, p38, and MMP3) were upregulated after LPS induction when compared with the PBS group, while quercetin could downregulate these expressions as compared with the LPS group. Quercetin significantly decreased the immunopositivity to TLR4 and MMP3 in the treatment group when compared with the LPS group. Quercetin could significantly downregulate the mRNA expressions of autophagy-related genes (ATG5, ATG7, Beclin-1, LC3A, and LC3B) and necroptosis-related genes (Fas, Bcl-2, Drp1, and RIPK1) after LPS induction. Quercetin significantly decreased the immunopositivity to LC3 in the treatment group when compared with the LPS group; meanwhile, quercetin significantly decreased the protein expressions of LC3-I, LC3-II, and the rate of LC3-II/LC3-I. In conclusions, quercetin can alleviate hepatic inflammation induced by LPS through modulating autophagy and necroptosis.
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Affiliation(s)
- Jinhai Yu
- Camellia Research Institute, The Innovation Institute of Agricultural Technology, Department of Life Science, Shangrao Normal University, Shangrao 334001, China.
| | - Rong Fu
- Department of Literature and Media, Shangrao Normal University, Shangrao 334001, China
| | - Amin Buhe
- Department of Cancer Surgery, Beijing Shijitan Hospital Affiliated with Capital Medical University, Beijing 100038, China
| | - Bing Xu
- Camellia Research Institute, The Innovation Institute of Agricultural Technology, Department of Life Science, Shangrao Normal University, Shangrao 334001, China
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Iqbal MF, Shafique MA, Abdur Raqib M, Fadlalla Ahmad TK, Haseeb A, M. A. Mhjoob A, Raja A. Histotripsy: an innovative approach for minimally invasive tumour and disease treatment. Ann Med Surg (Lond) 2024; 86:2081-2087. [PMID: 38576932 PMCID: PMC10990312 DOI: 10.1097/ms9.0000000000001897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 02/26/2024] [Indexed: 04/06/2024] Open
Abstract
Histotripsy is a noninvasive medical technique that uses high-intensity focused ultrasound (HIFU) to treat liver tumours. The two main histotripsy methods are boiling histotripsy and cavitation cloud histotripsy. Boiling histotripsy uses prolonged ultrasound pulses to create small boiling bubbles in the tissue, which leads to the breakdown of the tissue into smaller subcellular fragments. Cavitation cloud histotripsy uses the ultrasonic cavitation effect to disintegrate target tissue into precisely defined liquefied lesions. Both methods show similar treatment effectiveness; however, boiling histotripsy ensures treatment stability by producing a stable boiling bubble with each pulse. The therapeutic effect is ascribed to mechanical damage at the subcellular level rather than thermal damage. This article discusses the mechanisms, treatment parameters, and potential of histotripsy as a minimally invasive procedure that provides precise and controlled subcellular damage.
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Affiliation(s)
| | | | | | | | - Abdul Haseeb
- Department of Medicine, Jinnah Sindh Medical University
| | | | - Adarsh Raja
- Department of Medicine, Shaheed Mohtarma Benazir Bhutto Medical College, Karachi, Pakistan
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Li XM, Ma FZ, Quan XY, Zhang XC, Xiao BH, Wáng YXJ. Repeatability and reproducibility comparisons of liver IVIM imaging with free-breathing or respiratory-triggered sequences. NMR Biomed 2024; 37:e5080. [PMID: 38113878 DOI: 10.1002/nbm.5080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 10/26/2023] [Accepted: 11/07/2023] [Indexed: 12/21/2023]
Abstract
For liver intravoxel incoherent motion (IVIM) data acquisition, respiratory-triggering (RT) MRI is commonly used, and there are strong motivations to shorten the scan duration. For the same scan duration, more b values or higher numbers of excitations can be allowed for free-breathing (FB) imaging than for RT. We studied whether FB can be used to replace RT when careful IVIM image acquisition and image processing are conducted. MRI data of 22 healthy participants were acquired using a 3.0 T scanner. Diffusion imaging was based on a single-shot spin-echo-type echo-planar sequence and 16 b values of 0, 2, 4, 7, 10, 15, 20, 30, 46, 60, 72, 100, 150, 200, 400, and 600 s/mm2 . Each subject attended two scan sessions with an interval of 10-20 days. For each scan session, a subject was scanned twice, first with RT and then with FB. The mean image acquisition time was 5.4 min for FB and 10.8 min for RT. IVIM parameters were calculated with bi-exponential model segmented fitting with a threshold b value of 60 s/mm2 , and fitting started from b = 2 s/mm2 . There was no statistically significant difference between IVIM parameters measured with FB imaging or RT imaging. Perfusion fraction ICC (intraclass correlation coefficient) for FB imaging and RT imaging in the same scan session was 0.824. For perfusion fraction, wSD (within-subject standard deviation), BA (Bland-Altman) difference, BA 95% limit, and ICC were 0.022, 0.0001, -0.0635~0.0637, and 0.687 for FB and 0.031, 0.0122, -0.0723~0.0967, and 0.611 for RT. For Dslow (×10-3 s/mm2 ), wSD, BA difference, BA 95% limit, and ICC were 0.057, 0.0268, -0.1258~0.1793, and 0.471 for FB and 0.073, -0.0078, -0.2170-0.2014, and <0.4 for RT. The Dfast coefficient of variation was 0.20 for FB imaging and 0.28 for RT imaging. All reproducibility indicators slightly favored FB imaging.
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Affiliation(s)
- Xin-Ming Li
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Fu-Zhao Ma
- Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Xian-Yue Quan
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xu-Chang Zhang
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Ben-Heng Xiao
- Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Yì Xiáng J Wáng
- Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
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Lee-Riddle GS, Schmidt HJ, Reese PP, Nelson MN, Neergaard R, Barg FK, Serper M. Transplant recipient, care partner, and clinician perceptions of medication adherence monitoring technology: A mixed methods study. Am J Transplant 2024; 24:669-680. [PMID: 37923085 DOI: 10.1016/j.ajt.2023.10.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/28/2023] [Accepted: 10/30/2023] [Indexed: 11/07/2023]
Abstract
Medication nonadherence is a leading cause of graft loss. Adherence monitoring technologies-reminder texts, smart bottles, video-observed ingestion, and digestion-activated signaling pills-may support adherence. However, patient, care partner, and clinician perceptions of these tools are not well studied. We conducted qualitative individual semistructured interviews and focus groups among 97 participants at a single center: kidney and liver transplant recipients 2 weeks to 18 months posttransplant, their care partners, and transplant clinicians. We assessed adherence practices, reactions to monitoring technologies, and opportunities for care integration. One-size-fits-all approaches were deemed infeasible. Interviewees considered text messages the most acceptable approach; live video checks were the least acceptable and raised the most concerns for inconvenience and invasiveness. Digestion-activated signaling technology produced both excitement and apprehension. Patients and care partners generally aligned in perceptions of adherence monitoring integration into clinical care. Key themes were importance of routine, ease of use, leveraging technology for actionable medication changes, and aversion to surveillance. Transplant clinicians similarly considered text messages most acceptable and video checks least acceptable. Clinicians reported that early posttransplant use and real-time adherence tracking with patient feedback may facilitate successful implementation. The study provides initial insights that may inform future adherence technology implementation.
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Affiliation(s)
- Grace S Lee-Riddle
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Harald J Schmidt
- Department of Medical Ethics & Health Policy, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Peter P Reese
- Renal-Electrolyte and Hypertension Division, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA; Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Maria N Nelson
- Department of Family Medicine and Community Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Rebecca Neergaard
- Department of Family Medicine and Community Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Frances K Barg
- Department of Family Medicine and Community Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Marina Serper
- Division of Gastroenterology and Hepatology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA; Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
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Kiso K, Tsuboyama T, Onishi H, Ogawa K, Nakamoto A, Tatsumi M, Ota T, Fukui H, Yano K, Honda T, Kakemoto S, Koyama Y, Tarewaki H, Tomiyama N. Effect of Deep Learning Reconstruction on Respiratory-triggered T2-weighted MR Imaging of the Liver: A Comparison between the Single-shot Fast Spin-echo and Fast Spin-echo Sequences. Magn Reson Med Sci 2024; 23:214-224. [PMID: 36990740 PMCID: PMC11024712 DOI: 10.2463/mrms.mp.2022-0111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 03/07/2023] [Indexed: 03/30/2023] Open
Abstract
PURPOSE To compare the effects of deep learning reconstruction (DLR) on respiratory-triggered T2-weighted MRI of the liver between single-shot fast spin-echo (SSFSE) and fast spin-echo (FSE) sequences. METHODS Respiratory-triggered fat-suppressed liver T2-weighted MRI was obtained with the FSE and SSFSE sequences at the same spatial resolution in 55 patients. Conventional reconstruction (CR) and DLR were applied to each sequence, and the SNR and liver-to-lesion contrast were measured on FSE-CR, FSE-DLR, SSFSE-CR, and SSFSE-DLR images. Image quality was independently assessed by three radiologists. The results of the qualitative and quantitative analyses were compared among the four types of images using repeated-measures analysis of variance or Friedman's test for normally and non-normally distributed data, respectively, and a visual grading characteristics (VGC) analysis was performed to evaluate the image quality improvement by DLR on the FSE and SSFSE sequences. RESULTS The liver SNR was lowest on SSFSE-CR and highest on FSE-DLR and SSFSE-DLR (P < 0.01). The liver-to-lesion contrast did not differ significantly among the four types of images. Qualitatively, noise scores were worst on SSFSE-CR but best on SSFSE-DLR because DLR significantly reduced noise (P < 0.01). In contrast, artifact scores were worst both on FSE-CR and FSE-DLR (P < 0.01) because DLR did not reduce the artifacts. Lesion conspicuity was significantly improved by DLR compared with CR in the SSFSE (P < 0.01) but not in FSE sequences for all readers. Overall image quality was significantly improved by DLR compared with CR for all readers in the SSFSE (P < 0.01) but only one reader in the FSE (P < 0.01). The mean area under the VGC curve values for the FSE-DLR and SSFSE-DLR sequences were 0.65 and 0.94, respectively. CONCLUSION In liver T2-weighted MRI, DLR produced more marked improvements in image quality in SSFSE than in FSE.
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Affiliation(s)
- Kengo Kiso
- Department of Radiology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Takahiro Tsuboyama
- Department of Radiology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hiromitsu Onishi
- Department of Radiology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Kazuya Ogawa
- Department of Radiology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Atsushi Nakamoto
- Department of Radiology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Mitsuaki Tatsumi
- Department of Radiology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Takashi Ota
- Department of Radiology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hideyuki Fukui
- Department of Radiology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Keigo Yano
- Department of Radiology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Toru Honda
- Department of Radiology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Shinji Kakemoto
- Department of Radiology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yoshihiro Koyama
- Department of Radiology, Osaka University Hospital, Suita, Osaka, Japan
| | - Hiroyuki Tarewaki
- Department of Radiology, Osaka University Hospital, Suita, Osaka, Japan
| | - Noriyuki Tomiyama
- Department of Radiology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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Michael O, Darshit D, Mary K, Mutekoba U, Timothy M, Francis BX, Denis K, Edward K, Machyo OF, Henry D, William B, Ponsiano O. Advancing complex hepato-pancreato-biliary surgery in Uganda: Challenges and outcomes. World J Surg 2024; 48:924-931. [PMID: 38323680 DOI: 10.1002/wjs.12097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 01/27/2024] [Indexed: 02/08/2024]
Abstract
INTRODUCTION Uganda has until recently mostly referred patients for complex hepato-pancreato-biliary (HPB) surgery abroad due to lack of local expertize. We report indications and a spectrum of surgeries performed in the first 4 years following the establishment of a routine HPB service at Lubaga Hospital (LH), Kampala, Uganda. We also detailed the challenges encountered in setting up this service. METHODS Demographic, clinical parameters, surgery indications, procedures performed, and outcomes of consecutive patients that underwent HPB surgeries at LH from December 2018 to October 2022 were analyzed. RESULTS Majority were females 72 (57.6%) with a median age of 50 (6-88) years. Forty-one (32.8%) underwent surgery on the pancreas (PS), 34 (27.2%) on the liver (LS), and 50 (40.0%) on the bile ducts (CBS). The most common symptom was abdominal pain. Benign disease was present in 37 patients (29.6%) while 88 (70.4%) had malignancy. A total of 34 patients (27.2%) had unresectable pancreatic head cancer and distal cholangiocarcinoma missed at preoperative imaging and discovered intraoperatively thus underwent palliative hepaticojejunostomy. Only 34 (27.2%) patients received postoperative ICU care. In-hospital mortality for this heterogenous group of patients was 6 (4.8%) for PS, 3 (2.4%) for LS, and 8 (6.4%) for CBS. CONCLUSION Despite many challenges like limited access to ERCP accessories, lack of endoscopic ultrasound scans and PET-CT scans in the whole country, late presentation, and low quality imaging especially in preoperative determination of resectability of hepato-pancreato-biliary cancers, we managed to establish a functional HPB service. Patient results achieved were good in spite of these limitations.
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Affiliation(s)
- Okello Michael
- Department of Anatomy, Makerere University College of Health Sciences, Kampala, Uganda
- Society of Uganda Gastrointestinal and Endoscopic Surgeons (SUGES), Kampala, Uganda
| | - Dave Darshit
- Department of Surgery, Lubaga Hospital, Kampala, Uganda
| | - Kiconco Mary
- Department of Surgery, Lubaga Hospital, Kampala, Uganda
| | - Umar Mutekoba
- Department of Surgery, Lubaga Hospital, Kampala, Uganda
| | | | | | - Kakaire Denis
- Department of Surgery, Lubaga Hospital, Kampala, Uganda
| | | | | | | | - Buwembo William
- Department of Anatomy, Makerere University College of Health Sciences, Kampala, Uganda
| | - Ocama Ponsiano
- Department of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
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Elliott EI, Smith D, Lipscomb J, Banini B, Meurer L, Vanderford TH, Johnson JA, Jain D, Achhra A. Acute Hepatitis due to Primary Human Immunodeficiency Virus Infection. Open Forum Infect Dis 2024; 11:ofae170. [PMID: 38585186 PMCID: PMC10996125 DOI: 10.1093/ofid/ofae170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 03/20/2024] [Indexed: 04/09/2024] Open
Abstract
The acute retroviral syndrome may present with diverse systemic manifestations and laboratory abnormalities. Here we present a rare case of primary human immunodeficiency virus (HIV) infection causing severe acute hepatitis. Liver histopathology demonstrated a pattern of lymphocytic inflammation consistent with acute hepatitis, high levels of HIV proviral DNA were detected within liver tissue, and immunofluorescence showed HIV p24 antigen within immune and parenchymal cells including hepatocytes. We review the literature pertaining to HIV infection of cell compartments within the liver and discuss the implications for HIV-associated acute liver disease.
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Affiliation(s)
- Eric I Elliott
- Section of Infectious Disease, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Daisy Smith
- The DESA Group, Inc., Columbia, South Carolina, USA
| | - Jonathan Lipscomb
- HIV Laboratory Division of HIV Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Bubu Banini
- Section of Digestive Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Lindsay Meurer
- Division of Digestive and Liver Diseases, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Thomas H Vanderford
- HIV Laboratory, Division of HIV Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Jeffrey A Johnson
- HIV Laboratory, Division of HIV Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Dhanpat Jain
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Amit Achhra
- Section of Infectious Disease, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
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Wang Y, Zhu Y, Cui H, Deng H, Zuo Z, Fang J, Guo H. Effects of CuSO 4 on hepatic mitochondrial function, biogenesis and dynamics in mice. Environ Toxicol 2024; 39:2208-2217. [PMID: 38124272 DOI: 10.1002/tox.24085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/10/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023]
Abstract
Copper is an essential trace element for animal. Excessive intake of copper will cause a large accumulation of copper in the body, especially in the liver, and induce hepatotoxicity, however, there are few studies on the effects of copper on hepatic mitochondrial biogenesis and mitochondrial dynamics. In this study, mice were treated with different doses of CuSO4 (0, 10, 20, and 40 mg/kg) for 21 and 42 days by gavage. The results verified that CuSO4 decreased the content of mitochondrial respiratory chain complexes I-IV in mouse liver. CuSO4 treatment resulted the decrease in the protein and mRNA expression levels of PGC-1α, TFAM, and NRF1, which were the mitochondrial biogenesis regulator proteins. Meanwhile, the proteins involved in mitochondrial fusion were reduced by CuSO4 , such as Mfn1 and Mfn2, however, mitochondrial fission proteins Drip1 and Fis1 were significantly increased. Abovementioned results show that CuSO4 could induce mitochondria damage in the liver of mice, and mitochondrial biogenesis and mitochondrial dynamics are involved in the molecular mechanism of CuSO4 -induced hepatotoxicity.
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Affiliation(s)
- Yihan Wang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Yanqiu Zhu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Hengmin Cui
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Chengdu, China
| | - Huidan Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Chengdu, China
| | - Zhicai Zuo
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Chengdu, China
| | - Jing Fang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Chengdu, China
| | - Hongrui Guo
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Chengdu, China
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Kim H, Kim SK, Oelgeschläger M, Park HJ. Prediction of Acute Hepatotoxicity With Human Pluripotent Stem Cell-Derived Hepatic Organoids. Curr Protoc 2024; 4:e1015. [PMID: 38597874 DOI: 10.1002/cpz1.1015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Recent development of hepatic organoids (HOs) derived from human pluripotent stem cells (hPSCs) provides an alternative in vitro model that can mimic the human liver detoxification pathway for drug safety assessment. By recapitulating the high level of maturity and drug-metabolizing capacity of the liver in a three-dimensional organoid culture, HOs may allow researchers to assess drug toxicity and metabolism more accurately than animal models or hepatocellular carcinoma cells. Although this promising potential has contributed to the development of various protocols, only a few protocols are available to generate functional HOs with guaranteed CYP450 enzymatic activity, the key feature driving toxic responses during drug metabolism. Based on previously published protocols, we describe an optimized culture method that can substantially increase the expression and activity of CYP450s, in particular CYP3A4, CYP2C9, and CYP2C19, in HOs. To generate mass-produced and highly reproducible HOs required as models for toxicity evaluation, we first generated hepatic endodermal organoids (HEOs) from hPSCs capable of in vitro proliferation and cryopreservation. The stepwise protocol includes generating HEOs as well as efficient methods to enhance CYP450 expression and activity in terminally differentiated HOs. Furthermore, we present a simple protocol for the assessment of HO cytotoxicity, one of the hallmarks of drug-induced acute hepatotoxicity. The protocols are relatively straightforward and can be successfully used by laboratories with basic experience in culturing hPSCs. © 2024 The Authors. Current Protocols published by Wiley Periodicals LLC. Basic Protocol 1: Generation of hepatic endodermal organoids from human pluripotent stem cells Basic Protocol 2: Expansion and cryopreservation of hepatic endodermal organoids Basic Protocol 3: Differentiation of hepatic organoids from hepatic endodermal organoids Basic Protocol 4: Evaluation of hepatotoxicity using hepatic organoids Support Protocol: Human pluripotent stem cell culture.
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Affiliation(s)
- Hyemin Kim
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon, Republic of Korea
| | - Sang Kyum Kim
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Michael Oelgeschläger
- German Center for the Protection of Laboratory Animals, German Federal Institute for Risk Assessment, Berlin, Germany
| | - Han-Jin Park
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon, Republic of Korea
- German Center for the Protection of Laboratory Animals, German Federal Institute for Risk Assessment, Berlin, Germany
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Besqueut‐Rougerie C, Chavanelle V, Michaux A, Otero YF, Sirvent P, King JA, Ennequin G. Voluntary exercise fails to prevent metabolic dysfunction-associated steatotic liver disease progression in male rats fed a high-fat high-cholesterol diet. Physiol Rep 2024; 12:e15993. [PMID: 38627215 PMCID: PMC11021195 DOI: 10.14814/phy2.15993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 03/20/2024] [Accepted: 03/20/2024] [Indexed: 04/19/2024] Open
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD) is a major public health issue with a worldwide prevalence of 30%-32%. In animal models, voluntary exercise may be an alternative to forced physical activity, avoiding stress, potential injuries, and being logistically simpler. Here, we assessed voluntary exercise (Vex) in Sprague-Dawley rats fed a high-fat, high-cholesterol diet for 18 weeks to induce MASLD. We quantified workload (speed and distance) using exercise wheels and evaluated energy expenditure using calorimetric cages. MASLD progression was assessed using circulating and hepatic biochemical and gene markers of steatosis, inflammation, and fibrosis. The animals ran an average of 301 km during the study period, with the average daily distance peaking at 4937 m/day during Weeks 3-4 before decreasing to 757 m/day by the end of the study. Rats exposed to Vex showed no improvement in any of the MASLD-associated features, such as steatosis, inflammation, or fibrosis. Rats exposed to Vex exhibited a higher total energy expenditure during the night phase (+0.35 kcal/h; p = 0.003) without resulting in any effect on body composition. We conclude that, in our experimental conditions, Vex failed to prevent MASLD progression in male Sprague-Dawley rats exposed to a high-fat high-cholesterol diet for 18 weeks.
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Affiliation(s)
| | | | | | | | | | - James A. King
- School of Sport, Exercise and Health SciencesLoughborough UniversityLeicestershireUK
| | - Gaël Ennequin
- Laboratory of the Metabolic Adaptations to Exercise Under Physiological and Pathological Conditions (AME2P), CRNH Auvergne, Chaire Santé en MouvementClermont Auvergne UniversityClermont‐FerrandFrance
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Shan Q, Liu J, Qu F, Chen A, He W. Polychlorinated biphenyls exposure and type 2 diabetes: Molecular mechanism that causes insulin resistance and islet damage. Environ Toxicol 2024; 39:2466-2476. [PMID: 38305644 DOI: 10.1002/tox.24094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/18/2023] [Accepted: 12/01/2023] [Indexed: 02/03/2024]
Abstract
Polychlorinated biphenyls (PCBs) are typical persistent organic pollutants that have been associated with type 2 diabetes (T2DM) in cohort studies. This review aims to comprehensively assess the molecular mechanisms of PCBs-induced T2DM. Recent progress has been made in the research of PCBs in liver tissue, adipose tissue, and other tissues. By influencing the function of nuclear receptors, such as the aryl hydrocarbon receptor (AhR), pregnancy X receptor (PXR), and peroxisome proliferator activated receptor γ (PPARγ), as well as the inflammatory response, PCBs disrupt the balance of hepatic glucose and lipid metabolism. This is associated with insulin resistance (IR) in the target organ of insulin. Through androgen receptor (AR), estrogen receptor α/β (ERα/β), and pancreato-duodenal-homeobox gene-1 (PDX-1), PCBs affect the secretion of insulin and increase blood glucose. Thus, this review is a discussion on the relationship between PCBs exposure and the pathogenesis of T2DM. It is hoped to provide basic concepts for diabetes research and disease treatment.
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Affiliation(s)
- Qiuli Shan
- College of Biological Science and Technology, University of Jinan, Jinan, China
| | - Jingyu Liu
- College of Biological Science and Technology, University of Jinan, Jinan, China
| | - Fan Qu
- College of Biological Science and Technology, University of Jinan, Jinan, China
| | - Anhui Chen
- Jiangsu Key Laboratory of Food Resource Development and Quality Safe, Xuzhou University of Technology, Xuzhou, China
| | - Wenxing He
- College of Biological Science and Technology, University of Jinan, Jinan, China
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Esrefoğlu M, Kalkan TK, Karatas E, Elibol B, Hekimoglu ER, Karakaya Cimen FB, Yay AH. Hepatoprotective actions of melatonin by mainly modulating oxidative status and apoptosis rate in lipopolysaccharide-induced liver damage. Immunopharmacol Immunotoxicol 2024; 46:161-171. [PMID: 38051589 DOI: 10.1080/08923973.2023.2291751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 12/02/2023] [Indexed: 12/07/2023]
Abstract
AIM One of the serious complications of sepsis is liver damage and liver failure. This study aimed to evaluate the protective and therapeutic potential of melatonin in rats with lipopolysaccharide-induced sepsis. MAIN METHODS Female Spraque-Dawley rats received single a dose of 7.5 mg/kg lipopolysaccharide in saline to create a 24-h sepsis model. One of the other groups received melatonin at a dose of 10 mg/kg/day beginning 1 week before sepsis induction to the end of the experiment. The melatonin group received the same doses of melatonin for the same duration but not lipopolysaccharide. The vehicle group received the same doses of saline, the vehicle of melatonin, for the same duration. Twenty-four hours after the last injection, the rats were decapitated. By appropriate histochemical, immunohistochemical, biochemical, and molecular techniques, anti-necrotic, anti-apoptotic, anti-necroptotic, anti-inflammatory, and antioxidant effects of melatonin were assessed. KEY FINDINGS Lipopolysaccharide has disrupted liver functions by inducing oxidative stress, inflammation, necrotic, apoptotic, and necroptotic cell death, thus disrupting liver functions. Melatonin was found to be beneficial in terms of inhibiting the intrinsic pathway of apoptosis and tissue oxidant levels, stimulating tissue antioxidant enzyme levels, and restoring hepatocyte functions. SIGNIFICANCE Melatonin, at those doses and duration, was found to be hepatoprotective by mainly modulating oxidative status and apoptosis rate, however, failed to significantly reduce histopathological damage. We suggest that longer-term melatonin administration may produce anti-inflammatory and anti-necrotic effects as well.
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Affiliation(s)
- Mukaddes Esrefoğlu
- Department of Histology and Embryology, Faculty of Medicine, Bezmialem Vakıf University, Istanbul, Turkey
| | - Tugce Kubra Kalkan
- Department of Histology and Embryology, Faculty of Medicine, Kirşehir Ahi Evran University, Kırşehir, Turkey
| | - Ersin Karatas
- Department of Medical Services and Techniques, Patnos Vocation School, Ağrı İbrahim Çeçen University, Ağrı, Turkey
| | - Birsen Elibol
- Department of Medical Biology, Istanbul Medeniyet University, Istanbul, Turkey
| | - Emine Rumeysa Hekimoglu
- Department of Histology and Embryology, Faculty of Medicine, Bezmialem Vakıf University, Istanbul, Turkey
| | - Fatma Bedia Karakaya Cimen
- Department of Histology and Embryology, Faculty of Medicine, Bezmialem Vakıf University, Istanbul, Turkey
| | - Arzu Hanim Yay
- Department of Histology and Embryology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
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Bhavsar H, Robinson Z, Benson M, Getachew F, González-Rosa JM, Lafontant PJ. Lectins As Effective Tools in the Study of the Biliary Network and the Parenchymal Architecture of the Zebrafish ( Danio rerio) Liver. Zebrafish 2024; 21:177-180. [PMID: 38621207 DOI: 10.1089/zeb.2023.0073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024] Open
Abstract
Lectins are carbohydrate-binding proteins with specific affinity to glycoconjugates expressed in various tissues. Lectins are of substantial utility as research, histochemical, and diagnostic tools in mammalian systems. Reactivity of 12 commonly used plant-based lectins was studied in zebrafish liver. Four lectins, tomato lectin (TL), wheat germ agglutinin, concanavalin A, and Jacalin showed strong reactivity to hepatic parenchymal structures. Importantly, TL reacted to glycoconjugates within segments of the larval and adult intrahepatic biliary network, from canaliculi to bile ducts. We provide evidence that lectins can serve as important histochemical tools to investigate the structural and functional characteristics of the zebrafish liver.
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Affiliation(s)
- Hayden Bhavsar
- Biology Department, Grinnell College, Grinnell, Iowa, USA
| | - Zoe Robinson
- Biology Department, Grinnell College, Grinnell, Iowa, USA
| | - Matthew Benson
- Biology Department, Grinnell College, Grinnell, Iowa, USA
| | - Feven Getachew
- Biology Department, Grinnell College, Grinnell, Iowa, USA
| | | | - Pascal J Lafontant
- Biology Department, Grinnell College, Grinnell, Iowa, USA
- Department of Biology, DePauw University, Greencastle, Indiana, USA
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Xu G, Pan H, Fan L, Zhang L, Li J, Cheng S, Meng L, Shen N, Liu Y, Li Y, Huang T, Zhou L. Dietary Betaine Improves Glucose Metabolism in Obese Mice. J Nutr 2024; 154:1309-1320. [PMID: 38417550 DOI: 10.1016/j.tjnut.2024.02.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 02/17/2024] [Accepted: 02/23/2024] [Indexed: 03/01/2024] Open
Abstract
BACKGROUND Obesity caused by the overconsumption of energy-dense foods high in fat and sugar has contributed to the growing prevalence of type 2 diabetes. Betaine, found in food or supplements, has been found to lower blood glucose concentrations, but its exact mechanism of action is not well understood. OBJECTIVES A comprehensive evaluation of the potential mechanisms by which betaine supplementation improves glucose metabolism. METHODS Hyperglycemic mice were fed betaine to measure the indexes of glucose metabolism in the liver and muscle. To explore the mechanism behind the regulation of betaine on glucose metabolism, Ribonucleic Acid-Seq was used to analyze the livers of the mice. In vitro, HepG2 and C2C12 cells were treated with betaine to more comprehensively evaluate the effect of betaine on glucose metabolism. RESULTS Betaine was added to the drinking water of high-fat diet-induced mice, and it was found to reduce blood glucose concentrations and liver triglyceride concentrations without affecting body weight, confirming its hypoglycemic effect. To investigate the specific mechanism underlying its hypoglycemic effect, protein-protein interaction enrichment analysis of the liver revealed key nodes associated with glucose metabolism, including cytochrome P450 family activity, insulin sensitivity, glucose homeostasis, and triglyceride concentrations. The Kyoto Encyclopedia of Genes and Genomes and gene ontogeny enrichment analyses showed significant enrichment of the Notch signaling pathway. These results provided bioinformatic evidence for specific pathways through which betaine regulates glucose metabolism. Key enzyme activities involved in glucose uptake, glycogen synthesis, and glycogenolysis pathways of the liver and muscle were measured, and improvements were observed in these pathways. CONCLUSIONS This study provides new insight into the mechanisms by which betaine improves glucose metabolism in the liver and muscle and supports its potential as a drug for the treatment of metabolic disorders related to glucose.
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Affiliation(s)
- Gaoxiao Xu
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, and Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Hongyuan Pan
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Liping Fan
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, and Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Lifang Zhang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Jian Li
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, and Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Shimei Cheng
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, and Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Libing Meng
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, and Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Nana Shen
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, and Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Yong Liu
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, and Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Yixing Li
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Tengda Huang
- College of Animal Science and Technology, Guangxi University, Nanning, China.
| | - Lei Zhou
- Guangxi Academy of Medical Sciences, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China.
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Guo YN, Mou RW, Lu MH, Liang SS, He YM, Tang LP. Three different routes of EHEC O157:H7 infection were used to establish EHEC broiler model. Poult Sci 2024; 103:103561. [PMID: 38417337 PMCID: PMC10907844 DOI: 10.1016/j.psj.2024.103561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/01/2024] [Accepted: 02/12/2024] [Indexed: 03/01/2024] Open
Abstract
In order to study the prevention and control EHEC disease measures in poultry, the infection process and development of this disease and the pathological changes of various organs were to be observed. In this study, chickens were infected with different doses of enterohemorrhagic Escherichia coli (EHEC) O157:H7 using different routes of administration to establish EHEC broiler model. A total of 195 14-day-old broilers were randomly divided into 13 groups: including control group, Enema-drip groups (1010, 1011, 1012, 1013 CFUs E. coli O157:H7), gavage groups (P.O) (1011, 1012, 1013, 1014 CFUs E. coli O157:H7), and intraperitoneal injection group (I.P.) (108, 109, 1010, 1011 CFUs E. coli O157:H7). Escherichia coli (E. coli) was given using enema-drip, gavage or intraperitoneal infection. Then the feed intake, weight changes, stool and clinical symptoms of the chicks were recorded during the experiment. 7 d after E. coli infection, blood was collected from the jugular vein and serological tests were carried out. The liver, spleen, and colon of the chicks were extracted to get the organ index, bacteria load, and their histopathological changes. After infection with E. coli, some chicks feces were green or red watery stool, sometimes accompanied by foam, and the material to weight ratio of broilers in I.P. group increased significantly (P < 0.05), the 108 CFUs group were 1.3 times as large as control group. Three modeling methods can result in abnormal serum lipid metabolism and liver function indexes (increase of AST, TBA, T-Bil and TC level; decrease of ALB, TG, and TP level). Infection of chicks with O157:H7 by all 3 methods resulted in its detection in the liver, spleen, and colon. Three modeling methods significantly decreased liver index, and inflammatory cell infiltration and hyperemia were observed in liver. The spleen index in E. coli broilers by gavage and enema-drip was significantly decreased, splenic hyperemia and periarteriolar hyalinosis were observed. The spleen was enlarged with purplish-black spheroids in I.P. group broilers, and the spleen histological changes was more serious. The colon villi of broilers in gavage and enema-drip groups were thinner, more prone to rupture, intestinal lamina propria hyperemia, and inflammatory cell infiltration. Moreover, the number of goblet cells in the mucosal epithelium increased. E. coli O157:H7 can induce liver, spleen and intestinal damage and reduce growth performance of chicks. By comparing these 3 methods, we found that chicks infected with O157:H7 by gavage had more severe liver and intestinal damage, the enema-drip method caused most serious intestinal damage, and I.P. method significantly damaged the liver and spleen of chickens.
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Affiliation(s)
- Yan-Na Guo
- School of Life Science and Engineering, Foshan University, Foshan 528225, China
| | - Rui-Wei Mou
- School of Life Science and Engineering, Foshan University, Foshan 528225, China
| | - Meng-Han Lu
- School of Life Science and Engineering, Foshan University, Foshan 528225, China
| | - Shao-Shan Liang
- School of Life Science and Engineering, Foshan University, Foshan 528225, China
| | - Yong-Ming He
- School of Life Science and Engineering, Foshan University, Foshan 528225, China
| | - Lu-Ping Tang
- School of Life Science and Engineering, Foshan University, Foshan 528225, China.
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Yu S, Liu J, Reid J, Clarke J, Edwards S, Maddern G. Reoperation for post hepatectomy complications. ANZ J Surg 2024; 94:660-666. [PMID: 38054372 DOI: 10.1111/ans.18803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 11/16/2023] [Accepted: 11/18/2023] [Indexed: 12/07/2023]
Abstract
BACKGROUND Reoperation for post hepatectomy complications is associated with high rates of morbidity and mortality. We aim to describe the frequency, indications, and risk factors for reoperation after liver resection in a single centre. METHODS Perioperative data of 464 patients, who underwent elective hepatectomy from 2001 to 2020 at The Queen Elizabeth Hospital in South Australia, were retrospectively analysed. The frequency and indications for reoperation for post hepatectomy complications were recorded. Binary logistic regression analysis was performed to determine variables associated with reoperation. RESULTS A total of seven patients (1.5%) underwent reoperation post hepatectomy. The most common indications for reoperation were intra-abdominal abscess, post-operative haemorrhage, bile leak, and ischaemic bowel. Three out of the seven patients died. Patients were more likely to require reoperation if an additional major non-hepatic procedure was performed. CONCLUSION Reoperation post hepatectomy is associated with morbidity and mortality and is more likely to occur in patients who have undergone a non-hepatic procedure at the same time as the primary hepatic resection. Surgeons should ensure these patients are appropriately monitored and be selective about performing complex, multiple procedures. When possible, procedures should be staged.
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Affiliation(s)
- Sam Yu
- Department of Surgery, The University of Adelaide, The Queen Elizabeth Hospital, Adelaide, South Australia, Australia
| | - Jianliang Liu
- Department of Surgery, The University of Adelaide, The Queen Elizabeth Hospital, Adelaide, South Australia, Australia
| | - Jessica Reid
- Department of Surgery, The University of Adelaide, The Queen Elizabeth Hospital, Adelaide, South Australia, Australia
| | - Jessie Clarke
- Department of Surgery, The University of Adelaide, The Queen Elizabeth Hospital, Adelaide, South Australia, Australia
| | - Suzanne Edwards
- Adelaide Health Technology Assessment (AHTA), School of Public Health, The University of Adelaide, Adelaide, South Australia, Australia
| | - Guy Maddern
- Department of Surgery, The University of Adelaide, The Queen Elizabeth Hospital, Adelaide, South Australia, Australia
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Saad HM, Oda SS, Alexiou A, Papadakis M, Mahmoud MH, Batiha GES, Khalifa E. Hepatoprotective activity of Lactéol® forte and quercetin dihydrate against thioacetamide-induced hepatic cirrhosis in male albino rats. J Cell Mol Med 2024; 28:e18196. [PMID: 38534093 DOI: 10.1111/jcmm.18196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 11/20/2023] [Accepted: 02/04/2024] [Indexed: 03/28/2024] Open
Abstract
Liver cirrhosis is a silent disease in humans and is experimentally induced by many drugs and toxins as thioacetamide (TAA) in particular, which is the typical model for experimental induction of hepatic fibrosis. Thus, the objective of the present study was to elucidate the possible protective effects of lactéol® forte (LF) and quercetin dihydrate (QD) against TAA-induced hepatic damage in male albino rats. Induction of hepatotoxicity was performed by TAA injection (200 mg/kg I/P, twice/ week) in rats. LF (1 × 109 CFU/rat 5 times/week) and QD (50 mg/kg 5 times/week) treated groups were administered concurrently with TAA injection (200 mg/kg I/P, twice/ week). The experimental treatments were conducted for 12 weeks. Hepatotoxicity was evaluated biochemically by measuring alanine aminotransferase (ALT), aspartate aminotransferase (AST) and gamma-glutamyl transferase (GGT) in the serum and histopathologically with the scoring of histopathological changes besides histochemical assessment of collagen by Masson's trichrome and immunohistochemical analysis for α-smooth muscle actin (α-SMA), Ki67 and caspase-3 expression in liver sections. Our results indicated that LF and QD attenuated some biochemical changes and histochemical markers in TAA-mediated hepatotoxicity in rats by amelioration of biochemical markers and collagen, α-SMA, Ki67 and caspase3 Immunoexpression. Additionally, LF and QD supplementation downregulated the proliferative, necrotic, fibroblastic changes, eosinophilic intranuclear inclusions, hyaline globules and Mallory-like bodies that were detected histopathologically in the TAA group. In conclusion, LF showed better hepatic protection than QD against TAA-induced hepatotoxicity in rats by inhibiting inflammatory reactions with the improvement of some serum hepatic transaminases, histopathological picture and immunohistochemical markers.
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Affiliation(s)
- Hebatallah M Saad
- Department of Pathology, Faculty of Veterinary Medicine, Matrouh University, Matrouh, Egypt
| | - Samah S Oda
- Department of Pathology, Faculty of Veterinary Medicine, Alexandria University, Abees, Alexandria Province, Egypt
| | - Athanasios Alexiou
- University Centre for Research & Development, Chandigarh University, Mohali, Punjab, India
- Department of Research & Development, Funogen, Athens, Greece
- Department of Research & Development, AFNP Med, Wien, Austria
- Department of Science and Engineering, Novel Global Community Educational Foundation, Hebersham, New South Wales, Germany
| | - Marios Papadakis
- Department of Surgery II, University Hospital Witten-Herdecke, Heusnerstrasse 40, University of Witten-Herdecke, Wuppertal, Germany
| | - Mohamed H Mahmoud
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, AlBeheira, Egypt
| | - Eman Khalifa
- Department of Microbiology, Faculty of Veterinary Medicine, Matrouh University, Matrouh, Egypt
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Vaziri F, Setayesh T, Hu Y, Ravindran R, Wei D, Wan YY. BCG as an Innovative Option for HCC Treatment: Repurposing and Mechanistic Insights. Adv Sci (Weinh) 2024; 11:e2308242. [PMID: 38308164 PMCID: PMC11005731 DOI: 10.1002/advs.202308242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/23/2023] [Indexed: 02/04/2024]
Abstract
This study investigates Bacillus Calmette-Guérin (BCG) as a potential treatment for hepatocellular carcinoma (HCC), a condition often associated with unfavorable treatment outcomes. Exploiting BCG's recognized immune-boosting properties, preclinical trials are conducted using HCC mice, with a single subcutaneous dose of BCG administered post-tumor formation. Results indicate that BCG treatment effectively diminishes tumor burden and extends survival in both male and female HCC mice. Positive influences on hepatic fibrosis and metabolism are observed, leading to a reduction in lipid levels. Spatial analysis underscores BCG's tumor-specific effects, inducing the enrichment of metabolic pathways and inhibiting various cancer-related pathways. Furthermore, BCG promotes immune cell infiltration, including CD4+, CD8+ T cells, and M1 macrophages, in both v-akt murine thymoma viral oncogene homolog 1(AKT)/neutoblastoma RAS viral oncogene homolog (RAS) and β-catenin positive HCC models. Interestingly, blocking T cells, trained immunity, and Interferon-γ (IFN-γ) function reverses BCG's anti-HCC effects. In conclusion, BCG emerges as a promising treatment option for HCC, characterized by a favorable safety profile and efficacy in inhibiting fibrosis, improving metabolism, and engaging both trained immunity and T cells in therapeutic mechanisms.
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Affiliation(s)
- Farzam Vaziri
- Department of Pathology and Laboratory MedicineUniversity of California Davis HealthSacramentoCA95817USA
| | - Tahereh Setayesh
- Department of Pathology and Laboratory MedicineUniversity of California Davis HealthSacramentoCA95817USA
| | - Ying Hu
- Department of Pathology and Laboratory MedicineUniversity of California Davis HealthSacramentoCA95817USA
| | - Resmi Ravindran
- Department of Pathology and Laboratory MedicineUniversity of California Davis HealthSacramentoCA95817USA
| | - Dongguang Wei
- Department of Pathology and Laboratory MedicineUniversity of California Davis HealthSacramentoCA95817USA
| | - Yu‐Jui Yvonne Wan
- Department of Pathology and Laboratory MedicineUniversity of California Davis HealthSacramentoCA95817USA
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Yu C, Wang D, Shen C, Luo Z, Zhang H, Zhang J, Xu W, Xu J. Microbe-derived Antioxidants Enhance Lipid Synthesis by Regulating the Hepatic AMPKα-SREBP1c Pathway in Weanling Piglets. J Nutr 2024; 154:1101-1108. [PMID: 38340959 DOI: 10.1016/j.tjnut.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 02/01/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Weaning usually causes low feed intake and weight loss in piglets, which mobilizes lipid to energize. The microbe-derived antioxidants (MAs) exhibit great potential in antioxidation, anti-inflammation, and metabolic regulation. OBJECTIVES We aimed to investigate the changes of lipid metabolism postweaning and effects of MA on growth performance and hepatic lipid metabolism in weanling piglets. METHODS In the first experiment, piglets weaned at 21 d of age were slaughtered on weaning day (d0), 4 (d4), and 14 (d14) postweaning (6 piglets per day). In the second experiment, piglets were divided into 2 groups, receiving MA (MA) and saline gavage (CON), respectively. All piglets were weaned at 21 d of age and 6 piglets from each group were slaughtered at 25 d of age. RESULTS In experiment 1, the serum triglyceride, total cholesterol (TC), and LDL cholesterol on d4 and d14 declined significantly compared with d0 (P < 0.05). The serum leptin on d0 was higher than that on d4 and d14 (P < 0.05). The serum ghrelin kept increasing from d0 to d14 (P < 0.05). The hepatic hormone-sensitive lipase and adipose triglyceride lipase first increased from d0 to d4 and then decreased from d4 to d14 (P < 0.05). In experiment 2, the average daily gain and average daily feed intake from 21 to 25 d of age increased in the MA group compared with the CON group (P < 0.05). The serum TC, hepatic TC, and glucose of MA group showed a significant increase than that of the CON group (P < 0.05). The expression of SCD1, ACAT2, and PPARγ were upregulated in the MA group (P < 0.05). Contrary to the decreased expression of phosphorylation of adenosine 5'-monophosphate-activated protein kinase alfa subunit (Thr172), the nuclear sterol regulatory element-binding protein 1c, fatty acid synthase, and peroxisome proliferator-activated receptor gamma of MA group increased than that of CON group (P < 0.05). CONCLUSIONS Weaning promoted hepatic lipolysis and MA could enhance lipid synthesis by regulating adenosine 5'-monophosphate-activated protein kinase alfa subunit-sterol regulatory element-binding protein 1c pathway, thus improving growth performance of weanling piglets.
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Affiliation(s)
- Chengbing Yu
- Shanghai Key Laboratory of Veterinary and Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Di Wang
- Shanghai Key Laboratory of Veterinary and Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Cheng Shen
- Shanghai Key Laboratory of Veterinary and Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Zhen Luo
- Shanghai Key Laboratory of Veterinary and Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Hongcai Zhang
- Shanghai Key Laboratory of Veterinary and Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Jing Zhang
- Shanghai Key Laboratory of Veterinary and Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Weina Xu
- Shanghai Key Laboratory of Veterinary and Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Jianxiong Xu
- Shanghai Key Laboratory of Veterinary and Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
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De I, Singh R, Kumar S, Singh S, Singh M, Panda JJ, Ghosh K, Mishra DP, Singh M. Short term biodistribution and in vivo toxicity assessment of intravenously injected pristine graphene oxide nanoflakes in SD rats. Toxicol Res (Camb) 2024; 13:tfae058. [PMID: 38617714 PMCID: PMC11014786 DOI: 10.1093/toxres/tfae058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 02/20/2024] [Accepted: 04/02/2024] [Indexed: 04/16/2024] Open
Abstract
The present study aimed to elucidate the short term biodistribution of nano sized graphene oxide (GO) along with the toxicological assessment under in-vivo condition with an intent to analyse the toxic effects of sudden accidental exposure of GO The synthesised GO was characterized using UV-Visible spectroscopy, XRD, FTIR, Raman spectroscopy, TGA and DLS. The morphological imaging was performed using SEM, TEM and AFM. With a lateral size of less than 300 nm, these nanoparticles exhibit significant organ barrier permeability of up to 20%. Upon acute exposure to 10 mg/kg dose of ICG-tagged GO nanoflakes through intravenous route, various organs such as kidney, spleen and liver were observed, and the nanoparticles predominantly accumulated in the liver upon 24 h of exposure. Upon confirming the accumulation of these particles in liver through IVIS imaging, our next attempt was to analyse various biochemical and serum parameters. An elevation in various serum parameters such as ALT, AST, Creatinine and Bilirubin was observed. Similarly, in the case of biochemical parameters tested in liver homogenates, an increase in NO, Catalase, GSH, SOD, ROS, LPO, GR, GPx, and GST was observed. This study highlights the potential toxicological risk associated with GO exposure which must be taken into account for any risk analysis associated with GO based consumer products and the occupational hazards.
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Affiliation(s)
- Indranil De
- Institute of Nano Science and Technology (INST), Knowledge City, Sector-81, SAS Nagar, 140306, Mohali, Punjab, India
| | - Rashmika Singh
- Institute of Nano Science and Technology (INST), Knowledge City, Sector-81, SAS Nagar, 140306, Mohali, Punjab, India
| | - Sushil Kumar
- Institute of Nano Science and Technology (INST), Knowledge City, Sector-81, SAS Nagar, 140306, Mohali, Punjab, India
| | - Srishti Singh
- Institute of Nano Science and Technology (INST), Knowledge City, Sector-81, SAS Nagar, 140306, Mohali, Punjab, India
| | - Manohar Singh
- CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Jiban Jyoti Panda
- Institute of Nano Science and Technology (INST), Knowledge City, Sector-81, SAS Nagar, 140306, Mohali, Punjab, India
| | - Kaushik Ghosh
- Institute of Nano Science and Technology (INST), Knowledge City, Sector-81, SAS Nagar, 140306, Mohali, Punjab, India
| | | | - Manish Singh
- Institute of Nano Science and Technology (INST), Knowledge City, Sector-81, SAS Nagar, 140306, Mohali, Punjab, India
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49
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Gao L, Wang X, Guo L, Zhang W, Wang G, Han S, Zhang Y. Sex differences in diabetes‑induced hepatic and renal damage. Exp Ther Med 2024; 27:148. [PMID: 38476888 PMCID: PMC10928993 DOI: 10.3892/etm.2024.12436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 11/20/2023] [Indexed: 03/14/2024] Open
Abstract
Diabetes mellitus (DM) is a disease that affects millions of individuals worldwide and is characterized by abnormal glucose metabolism that can induce severe damage to numerous organs throughout the body. Sex differences have been demonstrated in a number of factors associated with diabetes and its complications, such as diabetic kidney disease and diabetic liver disease. To investigate the sex differences in DM further, the changes in the weight, food and water intake, and blood sugar of mice were recorded for 8 weeks in the present study. Hematoxylin and eosin staining, Masson's trichrome staining and transmission electron microscopy were used to observe the pathological changes of liver and kidney tissues. There is no significant difference in the water intake and blood glucose concentration between db/db female and male mice was observed. However, sex differences in liver and kidney damage including glomerular injury and hepatic fibrosis were found. In conclusion, the present study characterized the features of liver and kidney damage in db/db mice and indicated that sex differences should be taken into account in experiments using female and male experimental animals. Furthermore, sex differences should be taken into account in the selection of drug interventions in experiments and in clinical drug therapy.
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Affiliation(s)
- Linghuan Gao
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei 063210, P.R. China
- Hebei Key Laboratory for Chronic Diseases, Tangshan Key Laboratory for Preclinical and Basic Research on Chronic Diseases, School of Basic Medical Sciences, Tangshan, Hebei 063210, P.R. China
| | - Xindi Wang
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei 063210, P.R. China
- Hebei Key Laboratory for Chronic Diseases, Tangshan Key Laboratory for Preclinical and Basic Research on Chronic Diseases, School of Basic Medical Sciences, Tangshan, Hebei 063210, P.R. China
| | - Lei Guo
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei 063210, P.R. China
- Hebei Key Laboratory for Chronic Diseases, Tangshan Key Laboratory for Preclinical and Basic Research on Chronic Diseases, School of Basic Medical Sciences, Tangshan, Hebei 063210, P.R. China
| | - Wenli Zhang
- Comprehensive Testing and Analytical Center, North China University of Science and Technology, Tangshan, Hebei 063210, P.R. China
| | - Gengyin Wang
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei 063210, P.R. China
| | - Shuying Han
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei 063210, P.R. China
- Hebei Key Laboratory for Chronic Diseases, Tangshan Key Laboratory for Preclinical and Basic Research on Chronic Diseases, School of Basic Medical Sciences, Tangshan, Hebei 063210, P.R. China
- School of Nursing and Health, Caofeidian College of Technology, Tangshan, Hebei 063210, P.R. China
| | - Yuxin Zhang
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei 063210, P.R. China
- Hebei Key Laboratory for Chronic Diseases, Tangshan Key Laboratory for Preclinical and Basic Research on Chronic Diseases, School of Basic Medical Sciences, Tangshan, Hebei 063210, P.R. China
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50
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Koehn LM, Steele JR, Schittenhelm RB, Turner BJ, Nicolazzo JA. Sex-Dependent Changes to the Intestinal and Hepatic Abundance of Drug Transporters and Metabolizing Enzymes in the SOD1 G93A Mouse Model of Amyotrophic Lateral Sclerosis. Mol Pharm 2024; 21:1756-1767. [PMID: 38415587 DOI: 10.1021/acs.molpharmaceut.3c01089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Amyotrophic lateral sclerosis (ALS) is characterized by death and dysfunction of motor neurons that result in a rapidly progressing loss of motor function. While there are some data on alterations at the blood-brain barrier (BBB) in ALS and their potential impact on CNS trafficking of drugs, little is reported on the impact of this disease on the expression of drug-handling proteins in the small intestine and liver. This may impact the dosing of the many medicines that individuals with ALS are prescribed. In the present study, a proteomic evaluation was performed on small intestine and liver samples from postnatal day 120 SOD1G93A mice (a model of familial ALS that harbors a human mutant form of superoxide dismutase 1) and wild-type (WT) littermates (n = 7/genotype/sex). Untargeted, quantitative proteomics was undertaken using either label-based [tandem mass tag (TMT)] or label-free [data-independent acquisition (DIA)] acquisition strategies on high-resolution mass spectrometric instrumentation. Copper chaperone for superoxide dismutase (CCS) was significantly higher in SOD1G93A samples compared to the WT samples for both sexes and tissues, therefore representing a potential biomarker for ALS in this mouse model. Relative to WT mice, male SOD1G93A mice had significantly different proteins (Padj < 0.05, |fold-change|>1.2) in the small intestine (male 22, female 1) and liver (male 140, female 3). This included an up-regulation of intestinal transporters for dietary glucose [solute carrier (SLC) SLC5A1] and cholesterol (Niemann-Pick c1-like 1), as well as for several drugs (e.g., SLC15A1), in the male SOD1G93A mice. There was both an up-regulation (e.g., SLCO2A1) and down-regulation (ammonium transporter rh type b) of transporters in the male SOD1G93A liver. In addition, there was both an up-regulation (e.g., phosphoenolpyruvate carboxykinase) and down-regulation (e.g., carboxylesterase 1) of metabolizing enzymes in the male SOD1G93A liver. This proteomic data set identified male-specific changes to key small intestinal and hepatic transporters and metabolizing enzymes that may have important implications for the bioavailability of nutrients and drugs in individuals with ALS.
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Affiliation(s)
- Liam M Koehn
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Victoria, Australia
| | - Joel R Steele
- Monash Proteomics and Metabolomics Platform, Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Clayton 3800, Victoria, Australia
| | - Ralf B Schittenhelm
- Monash Proteomics and Metabolomics Platform, Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Clayton 3800, Victoria, Australia
| | - Bradley J Turner
- The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville 3052, Victoria, Australia
| | - Joseph A Nicolazzo
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Victoria, Australia
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