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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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Kajani S, Laker RC, Ratkova E, Will S, Rhodes CJ. Hepatic glucagon action: beyond glucose mobilization. Physiol Rev 2024; 104:1021-1060. [PMID: 38300523 DOI: 10.1152/physrev.00028.2023] [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: 07/11/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 02/02/2024] Open
Abstract
Glucagon's ability to promote hepatic glucose production has been known for over a century, with initial observations touting this hormone as a diabetogenic agent. However, glucagon receptor agonism [when balanced with an incretin, including glucagon-like peptide 1 (GLP-1) to dampen glucose excursions] is now being developed as a promising therapeutic target in the treatment of metabolic diseases, like metabolic dysfunction-associated steatotic disease/metabolic dysfunction-associated steatohepatitis (MASLD/MASH), and may also have benefit for obesity and chronic kidney disease. Conventionally regarded as the opposing tag-team partner of the anabolic mediator insulin, glucagon is gradually emerging as more than just a "catabolic hormone." Glucagon action on glucose homeostasis within the liver has been well characterized. However, growing evidence, in part thanks to new and sensitive "omics" technologies, has implicated glucagon as more than just a "glucose liberator." Elucidation of glucagon's capacity to increase fatty acid oxidation while attenuating endogenous lipid synthesis speaks to the dichotomous nature of the hormone. Furthermore, glucagon action is not limited to just glucose homeostasis and lipid metabolism, as traditionally reported. Glucagon plays key regulatory roles in hepatic amino acid and ketone body metabolism, as well as mitochondrial turnover and function, indicating broader glucagon signaling consequences for metabolic homeostasis mediated by the liver. Here we examine the broadening role of glucagon signaling within the hepatocyte and question the current dogma, to appreciate glucagon as more than just that "catabolic hormone."
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Affiliation(s)
- Sarina Kajani
- Early Cardiovascular, Renal and Metabolism, Biopharmaceuticals R&D, AstraZeneca, Gaithersburg, Maryland, United States
| | - Rhianna C Laker
- Early Cardiovascular, Renal and Metabolism, Biopharmaceuticals R&D, AstraZeneca, Gaithersburg, Maryland, United States
| | - Ekaterina Ratkova
- Early Cardiovascular, Renal and Metabolism, Biopharmaceuticals R&D, AstraZeneca, Mölndal, Sweden
| | - Sarah Will
- Early Cardiovascular, Renal and Metabolism, Biopharmaceuticals R&D, AstraZeneca, Gaithersburg, Maryland, United States
| | - Christopher J Rhodes
- Early Cardiovascular, Renal and Metabolism, Biopharmaceuticals R&D, AstraZeneca, Gaithersburg, Maryland, United States
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Gad El-Hak HN, Kishk SM, Abdelrazek HMA. Evening primrose oil enriched with gamma linolenic acid and D/L-alpha tocopherol acetate attenuated carbon tetrachloride-induced hepatic injury model in male rats via TNF-α, IL-1β, and IL-6 pathway. Toxicol Mech Methods 2024; 34:469-483. [PMID: 38166523 DOI: 10.1080/15376516.2023.2301357] [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: 10/12/2023] [Accepted: 12/28/2023] [Indexed: 01/04/2024]
Abstract
The modulatory role of primrose oil (PO) supplementation enriched with γ-linolenic acid and D/L-alpha tocopherol acetate against a carbon tetrachloride (CCl4)-induced liver damage model was assessed in this study. Twenty male Albino rats were divided into four groups. The control group received corn oil orally. The PO group received 10 mg/kg P O orally. The CCl4 group received 2 mL/kg CCl4 orally and PO/CCl4 group; received PO and 2 mL/kg CCl4 orally. The relative liver weight was recorded. Serum liver enzymes, hepatic malondialdehyde (MDA), hepatic reduced glutathione (GSH) and the expression of hepatic tumor necrosis factor-alpha (TNF-α), interleukin 1 beta (IL-1β), and interleukin 6 (IL-6) were assessed. The binding affinities of γ-linolenic acid and D/L-alpha tocopherol constituents with IL-1β, IL-6 and TNF-α were investigated using molecular docking simulations. Histopathological and electron microscopic examinations of the liver were performed. The results indicated that CCl4 elevated serum liver enzyme and hepatic MDA levels, whereas GSH levels were diminished. The upregulation of IL-1β, IL-6, and TNF-α gene expressions were induced by CCl4 treatment. The PO/CCl4-treated group showed amelioration of hepatic injury biomarkers and oxidative stress. Restoration of histopathological and ultrastructural alterations while downregulations the gene expressions of TNF-α, IL1-β and IL-6 were observed. In conclusion, evening primrose oil enriched with γ-linolenic acid and D/L-alpha tocopherol acetate elicited a potential amelioration of CCl4-induced hepatic toxicity.
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Affiliation(s)
| | - Safaa M Kishk
- Department of Medicinal Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Heba M A Abdelrazek
- Department of Physiology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
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ŞENSOY E. Determination of the effects of sunset yellow on mouse liver and pancreas using histological methods. Toxicol Res (Camb) 2024; 13:tfae070. [PMID: 38737341 PMCID: PMC11084755 DOI: 10.1093/toxres/tfae070] [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: 01/24/2024] [Revised: 03/11/2024] [Accepted: 05/02/2024] [Indexed: 05/14/2024] Open
Abstract
Background Sunset Yellow (SY) is an azo synthetic food dye. Although the amount of SY consumed varies in different periods of life, it increases especially in children and adolescents. It may cause pathologic effects in organs at early ages. The aim of this study was to determine the effects of SY on the liver and pancreas of mice of different age groups using histological methods. Methods The study included Swiss albino mice that were divided into three treatment groups and three control groups based on age (4, 8, and 10 weeks old), with six mice in each group (n = 6/group). SY was administered at 30 mg/kg/bw/week orally for 28 days to treatment groups. The liver and pancreas tissues were kept in 10% formaldehyde, then passed through alcohol and xylene series and stained with Hematoxylin-Eosin. Results They were evaluated using light and electron microscopy. In SY groups, the mean body weight (p: 0.026) and the mean liver weight (p: 0.013) of the mice increased, and their mean pancreas weight decreased (p: 0.045).The numbers of degenerative cells in the liver tissues of the mice in the SY groups were high. Severe dilation in the sinusoids and haemorrhages focused around the Vena Cava were detected. In the pancreatic tissues of the SY groups, increases in fibroblasts and lymphocytic infiltration were observed. Conclusions Pathologies interpreted as chronic pancreatitis were more intense in the weaning group (4 weeks old). SY may be more harmful at an early age, and it may be beneficial to limit its use during this period.
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Affiliation(s)
- Erhan ŞENSOY
- Department of Midwifery, Faculty of Health Sciences, Karamanoglu Mehmetbey University, Ibrahim Okten Street, Campus, 70100 Karaman, Turkey
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Hatoum S, Rockey DC. Long-term outcomes of patients with autoimmune hepatitis induced cirrhosis after immunosuppressive treatment. Eur J Gastroenterol Hepatol 2024; 36:742-749. [PMID: 38555597 PMCID: PMC11058017 DOI: 10.1097/meg.0000000000002714] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
INTRODUCTION Autoimmune hepatitis is an immune-mediated liver disease that results in hepatic inflammation and subsequent fibrosis. We aimed to assess the natural history of autoimmune hepatitis in patients who had cirrhosis at the time of diagnosis. METHODS We examined consecutive patients with autoimmune hepatitis (based on the revised International Autoimmune Hepatitis Group criteria) and cirrhosis who had long-term follow-up between 2012 and 2018. Complete clinical data, including longitudinal data, was obtained for each patient to determine clinical and biochemical outcomes. Decompensating events were defined as complications of portal hypertension. RESULTS Thirty-four patients presenting with autoimmune hepatitis induced cirrhosis (age 50, 17-81; 71% women) were followed for an average of 8 years post-diagnosis. Fourteen (41%) patients had a decompensating event at diagnosis. All patients were begun on treatment; index decompensating events resolved in all patients. Twenty-six (76%) patients had normalization of transaminases; in this group, 4 (15%) patients developed one or more new decompensating events and 1 patient (4%) died. Of the 8 (24%) patients who did not have transaminase normalization, 6 (75%) developed one or more new decompensating events and 5 (62%) died or underwent liver transplant. There was a significant association between achieving normalization of transaminases and protection from developing a decompensating event ( P = 0.003) and liver transplant or death ( P = 0.001). CONCLUSION Most patients with autoimmune hepatitis with cirrhosis at presentation achieved normalization of transaminases with treatment and rarely developed further decompensating events. We speculate that some of these patients had stabilization or reversal of portal hypertension.
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Affiliation(s)
- Sara Hatoum
- Digestive Disease Research Center, Medical University of South Carolina, Charleston, South Carolina, 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; 28:113-126. [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] [MESH Headings] [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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Espadas I, Cáliz-Molina MÁ, López-Fernández-Sobrino R, Panadero-Morón C, Sola-García A, Soriano-Navarro M, Martínez-Force E, Venegas-Calerón M, Salas JJ, Martín F, Gauthier BR, Alfaro-Cervelló C, Martí-Aguado D, Capilla-González V, Martín-Montalvo A. Hydroxycitrate delays early mortality in mice and promotes muscle regeneration while inducing a rich hepatic energetic status. Aging Cell 2024:e14205. [PMID: 38760909 DOI: 10.1111/acel.14205] [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: 01/31/2024] [Revised: 04/09/2024] [Accepted: 05/06/2024] [Indexed: 05/20/2024] Open
Abstract
ATP citrate lyase (ACLY) inhibitors have the potential of modulating central processes in protein, carbohydrate, and lipid metabolism, which can have relevant physiological consequences in aging and age-related diseases. Here, we show that hepatic phospho-active ACLY correlates with overweight and Model for End-stage Liver Disease score in humans. Wild-type mice treated chronically with the ACLY inhibitor potassium hydroxycitrate exhibited delayed early mortality. In AML12 hepatocyte cultures, the ACLY inhibitors potassium hydroxycitrate, SB-204990, and bempedoic acid fostered lipid accumulation, which was also observed in the liver of healthy-fed mice treated with potassium hydroxycitrate. Analysis of soleus tissue indicated that potassium hydroxycitrate produced the modulation of wound healing processes. In vivo, potassium hydroxycitrate modulated locomotor function toward increased wire hang performance and reduced rotarod performance in healthy-fed mice, and improved locomotion in mice exposed to cardiotoxin-induced muscle atrophy. Our findings implicate ACLY and ACLY inhibitors in different aspects of aging and muscle regeneration.
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Affiliation(s)
- Isabel Espadas
- Andalusian Molecular Biology and Regenerative Medicine Centre-CABIMER, Universidad de Sevilla-CSIC-Universidad Pablo de Olavide, Seville, Spain
| | - María Ángeles Cáliz-Molina
- Andalusian Molecular Biology and Regenerative Medicine Centre-CABIMER, Universidad de Sevilla-CSIC-Universidad Pablo de Olavide, Seville, Spain
| | - Raúl López-Fernández-Sobrino
- Andalusian Molecular Biology and Regenerative Medicine Centre-CABIMER, Universidad de Sevilla-CSIC-Universidad Pablo de Olavide, Seville, Spain
| | - Concepción Panadero-Morón
- Andalusian Molecular Biology and Regenerative Medicine Centre-CABIMER, Universidad de Sevilla-CSIC-Universidad Pablo de Olavide, Seville, Spain
| | - Alejandro Sola-García
- Andalusian Molecular Biology and Regenerative Medicine Centre-CABIMER, Universidad de Sevilla-CSIC-Universidad Pablo de Olavide, Seville, Spain
| | - Mario Soriano-Navarro
- Electron Microscopy Core Facility, Centro de Investigación Príncipe Felipe (CIPF), Valencia, Spain
| | | | | | - Joaquin J Salas
- Instituto de la Grasa (CSIC), Universidad Pablo de Olavide, Sevilla, Spain
| | - Franz Martín
- Andalusian Molecular Biology and Regenerative Medicine Centre-CABIMER, Universidad de Sevilla-CSIC-Universidad Pablo de Olavide, Seville, Spain
- Biomedical Research Network on Diabetes and Related Metabolic Diseases-CIBERDEM, Instituto de Salud Carlos III, Madrid, Spain
| | - Benoit R Gauthier
- Andalusian Molecular Biology and Regenerative Medicine Centre-CABIMER, Universidad de Sevilla-CSIC-Universidad Pablo de Olavide, Seville, Spain
- Biomedical Research Network on Diabetes and Related Metabolic Diseases-CIBERDEM, Instituto de Salud Carlos III, Madrid, Spain
| | - Clara Alfaro-Cervelló
- Pathology Department, INCLIVA Health Research Institute, Clinic University Hospital, University of Valencia, Valencia, Spain
| | - David Martí-Aguado
- Digestive Disease Department, Clinic University Hospital, INCLIVA Health Research Institute, Valencia, Spain
- Division of Gastroenterology, Hepatology and Nutrition, Center for Liver Diseases
| | - Vivian Capilla-González
- Andalusian Molecular Biology and Regenerative Medicine Centre-CABIMER, Universidad de Sevilla-CSIC-Universidad Pablo de Olavide, Seville, Spain
| | - Alejandro Martín-Montalvo
- Andalusian Molecular Biology and Regenerative Medicine Centre-CABIMER, Universidad de Sevilla-CSIC-Universidad Pablo de Olavide, Seville, Spain
- Biomedical Research Network on Diabetes and Related Metabolic Diseases-CIBERDEM, Instituto de Salud Carlos III, Madrid, Spain
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Bonet J, Fox D, Nelson R, Nelson MB, Nelson L, Fernandez C, Barbieri E, Dalla Man C, Santoro N. Modelling and assessment of glucose-lactate kinetics in youth with overweight, obesity and metabolic dysfunction-associated steatotic liver disease: A pilot study. Diabetes Obes Metab 2024. [PMID: 38742538 DOI: 10.1111/dom.15648] [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: 03/29/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 05/16/2024]
Abstract
AIM In this study, we investigated glucose and lactate kinetics during a 75 g oral glucose tolerance test (OGTT) in 23 overweight and obese adolescents and assessed putative differences among participants with and without metabolic dysfunction-associated steatotic liver disease (MASLD). METHODS We enrolled 23 young people (six girls) with obesity [body mass index 33 (29-37)]. Glucose-lactate kinetics parameters (disposal glucose insulin sensitivity, SID; fraction of glucose converted into lactate, fr; fractional lactate clearance rate, kL) and lactate production rate (LPR) were estimated using the oral glucose-lactate minimal model. MASLD presence was assessed using the proton density fat fraction. We analysed glucose, lactate and LPR time to peak, peak values and area under the curve and evaluated differences using the Wilcoxon test. MASLD and no-MASLD participants were compared using the Mann-Whitney test. Correlations between parameters were assessed using the Spearman correlation coefficient (ρ). We also tested the performance of two (4 or 3 h OGTT) protocols in estimating oral glucose-lactate minimal model and LPR parameters. RESULTS Glucose peaks 30 min earlier than lactate (p = .0019). This pattern was present in the no-MASLD group (p < .001). LPR peaks 30 min later in the MASLD group (p = .02). LPR and kL were higher in MASLD, suggesting higher glycolysis and lactate utilization. SID and fr correlate significantly (ρ = -0.55, p = .008). SID and fr were also correlated with the body mass index, (ρ = -0.45, p = .04; and ρ = 0.45; p = .03). The protocol duration did not influence the estimates of the parameters. DISCUSSION Youth with MASLD showed a delayed glucose metabolism, possibly because of greater utilization of the underlying substrates. A 3-h OGTT may be used to assess lactate metabolism effectively.
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Affiliation(s)
- Jacopo Bonet
- Department of Information Engineering, Padua, Italy
- Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Delaney Fox
- Department of Pediatrics, Kansas University Medical Center, Kansas City, Kansas, USA
| | - Rafaela Nelson
- Department of Pediatrics, Kansas University Medical Center, Kansas City, Kansas, USA
| | - Michael B Nelson
- Department of Pediatrics, Kansas University Medical Center, Kansas City, Kansas, USA
| | - Loretta Nelson
- Department of Pediatrics, Kansas University Medical Center, Kansas City, Kansas, USA
| | - Cristina Fernandez
- Center for Children's Healthy Lifestyles & Nutrition, Kansas City, Kansas, USA
- University of Missouri-Kansas City School of Medicine, Kansas City, Kansas, USA
- Division of Weight Management, Children's Mercy, Kansas City, Missouri, USA
| | - Emiliano Barbieri
- Universita degli Studi di Napoli Federico II Scuola di Medicina e Chirurgia, Naples, Italy
| | | | - Nicola Santoro
- Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Medicine and Health Sciences, "V. Tiberio" University of Molise, Campobasso, Italy
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Wu L, Vllasaliu D, Cui Q, Raimi-Abraham BT. In Situ Self-Assembling Liver Spheroids with Synthetic Nanoscaffolds for Preclinical Drug Screening Applications. ACS Appl Mater Interfaces 2024. [PMID: 38741479 DOI: 10.1021/acsami.3c17384] [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] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Drug-induced liver injury (DILI) is one of the most common reasons for acute liver failure and a major reason for the withdrawal of medications from the market. There is a growing need for advanced in vitro liver models that can effectively recapitulate hepatic function, offering a robust platform for preclinical drug screening applications. Here, we explore the potential of self-assembling liver spheroids in the presence of electrospun and cryomilled poly(caprolactone) (PCL) nanoscaffolds for use as a new preclinical drug screening tool. This study investigated the extent to which nanoscaffold concentration may have on spheroid size and viability and liver-specific biofunctionality. The efficacy of our model was further validated using a comprehensive dose-dependent acetaminophen toxicity protocol. Our findings show the strong potential of PCL-based nanoscaffolds to facilitate in situ self-assembly of liver spheroids with sizes under 350 μm. The presence of the PCL-based nanoscaffolds (0.005 and 0.01% w/v) improved spheroid viability and the secretion of critical liver-specific biomarkers, namely, albumin and urea. Liver spheroids with nanoscaffolds showed improved drug-metabolizing enzyme activity and greater sensitivity to acetaminophen compared to two-dimensional monolayer cultures and scaffold-free liver spheroids. These promising findings highlight the potential of our nanoscaffold-based liver spheroids as an in vitro liver model for drug-induced hepatotoxicity and drug screening.
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Affiliation(s)
- Lina Wu
- King's College London, Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, Institute of Pharmaceutical Science, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, U.K
| | - Driton Vllasaliu
- King's College London, Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, Institute of Pharmaceutical Science, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, U.K
| | - Qi Cui
- King's College London, Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, Institute of Pharmaceutical Science, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, U.K
| | - Bahijja Tolulope Raimi-Abraham
- King's College London, Faculty of Life Sciences and Medicine, School of Cancer and Pharmaceutical Sciences, Institute of Pharmaceutical Science, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, U.K
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10
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Khan J, Kim ND, Bromhead C, Truman P, Kruger MC, Mallard BL. Hepatotoxicity of titanium dioxide nanoparticles. J Appl Toxicol 2024. [PMID: 38740968 DOI: 10.1002/jat.4626] [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: 02/22/2024] [Revised: 04/21/2024] [Accepted: 04/25/2024] [Indexed: 05/16/2024]
Abstract
The food additive E171 (titanium dioxide, TiO2), is widely used in foods, pharmaceuticals and cosmetics. It is a fine white powder, with at least one third of its particles sized in the nanoparticulate (˂100 nm range, TiO2 NPs). The use of E171 is controversial as its relevant risk assessment has never been satisfactorily accomplished. In vitro and in vivo studies have shown dose-dependent toxicity in various organs including the liver. TiO2 NPs have been shown to induce inflammation, cell death and structural and functional changes within the liver. The toxicity of TiO2 NPs in experimental models varies between organs and according to their physiochemical characteristics and parameters such as dosage and route of administration. Among these factors, ingestion is the most significant exposure route, and the liver is a key target organ. The aim of this review is to highlight the reported adverse effects of orally administered TiO2 NPs on the liver and to discuss the controversial state of its toxicity.
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Affiliation(s)
- Jangrez Khan
- School of Health Sciences, Massey University, PO Box 756, Wellington, 6021, New Zealand
| | - Nicholas D Kim
- School of Health Sciences, Massey University, PO Box 756, Wellington, 6021, New Zealand
| | - Collette Bromhead
- School of Health Sciences, Massey University, PO Box 756, Wellington, 6021, New Zealand
| | - Penelope Truman
- School of Health Sciences, Massey University, PO Box 756, Wellington, 6021, New Zealand
| | - Marlena C Kruger
- School of Health Sciences, Massey University, PO Box 756, Wellington, 6021, New Zealand
| | - Beth L Mallard
- School of Health Sciences, Massey University, PO Box 756, Wellington, 6021, New Zealand
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Jellali M, Zenati H, Zayati M, Korbi I, Noomen F. Intrabiliary Rupture of a Hepatic Hydatid Cyst: A Case Report. Am J Case Rep 2024; 25:e943893. [PMID: 38733073 PMCID: PMC11099549 DOI: 10.12659/ajcr.943893] [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: 01/23/2024] [Revised: 03/26/2024] [Accepted: 03/18/2024] [Indexed: 05/13/2024]
Abstract
BACKGROUND Hydatid disease is a common parasitic infection in many areas of Asia, South America, and Africa. It can affect any organ, most commonly the liver. The hydatid is often asymptomatic and the diagnosis is made when complications arise. The most common complication of this disease is opening in the bile ducts, which is a life-threatening condition causing serious acute cholangitis. We report a case of acute cholangitis caused by hydatid cyst rupture into the right bile duct. CASE REPORT A 33-year-old woman, with no medical or surgical history, presented to our Emergency Department with abdominal pain, jaundice, and fever for 3 days prior to admission. The patient was hemodynamically stable. In the examination, we noticed right upper-quadrant tenderness with guarding, icterus sclera, and negative Murphy sign. A CT scan showed a liver hydatid cyst of the 4th and 8th of segments, with intrahepatic and extrahepatic biliary duct dilation. The cyst communicated with the right hepatic bile duct via a large fistula. A diagnosis of acute cholangitis was made and she underwent conservative treatment with external drainage of the pericystic cavity through the biliary duct. The postoperative course was uncomplicated and she was discharged 15 days later. CONCLUSIONS The surgical approach to hepatic hydatid must be customized based on the specific characteristics of the cyst and associated complications. Acute hydatid cholangitis is a rare but serious complication of a hydatid cyst, which requires early diagnosis and adequate surgical management.
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Affiliation(s)
- Maissa Jellali
- Corresponding Authors: Maissa Jellali, e-mail: , Hanen Zenati, e-mail
| | - Hanen Zenati
- Corresponding Authors: Maissa Jellali, e-mail: , Hanen Zenati, e-mail
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Davis JMK, Niazi MKK, Ricker AB, Tavolara TE, Robinson JN, Annanurov B, Smith K, Mantha R, Hwang J, Shrestha R, Iannitti DA, Martinie JB, Baker EH, Gurcan MN, Vrochides D. Predicting response to neoadjuvant chemotherapy for colorectal liver metastasis using deep learning on prechemotherapy cross-sectional imaging. J Surg Oncol 2024. [PMID: 38712939 DOI: 10.1002/jso.27673] [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: 10/21/2023] [Revised: 04/13/2024] [Accepted: 04/28/2024] [Indexed: 05/08/2024]
Abstract
BACKGROUND AND OBJECTIVES Deep learning models (DLMs) are applied across domains of health sciences to generate meaningful predictions. DLMs make use of neural networks to generate predictions from discrete data inputs. This study employs DLM on prechemotherapy cross-sectional imaging to predict patients' response to neoadjuvant chemotherapy. METHODS Adult patients with colorectal liver metastasis who underwent surgery after neoadjuvant chemotherapy were included. A DLM was trained on computed tomography images using attention-based multiple-instance learning. A logistic regression model incorporating clinical parameters of the Fong clinical risk score was used for comparison. Both model performances were benchmarked against the Response Evaluation Criteria in Solid Tumors criteria. A receiver operating curve was created and resulting area under the curve (AUC) was determined. RESULTS Ninety-five patients were included, with 33,619 images available for study inclusion. Ninety-five percent of patients underwent 5-fluorouracil-based chemotherapy with oxaliplatin and/or irinotecan. Sixty percent of the patients were categorized as chemotherapy responders (30% reduction in tumor diameter). The DLM had an AUC of 0.77. The AUC for the clinical model was 0.41. CONCLUSIONS Image-based DLM for prediction of response to neoadjuvant chemotherapy in patients with colorectal cancer liver metastases was superior to a clinical-based model. These results demonstrate potential to identify nonresponders to chemotherapy and guide select patients toward earlier curative resection.
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Affiliation(s)
- Joshua M K Davis
- Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, North Carolina, USA
| | - Muhammad Khalid Khan Niazi
- Center for Artificial Intelligence Research and the Clinical Image Analysis Lab, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Ansley B Ricker
- Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, North Carolina, USA
| | - Thomas E Tavolara
- Center for Artificial Intelligence Research and the Clinical Image Analysis Lab, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Jordan N Robinson
- Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, North Carolina, USA
| | - Bayram Annanurov
- Center for Artificial Intelligence Research and the Clinical Image Analysis Lab, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Kaylee Smith
- Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, North Carolina, USA
| | - Rohit Mantha
- Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, North Carolina, USA
| | - Jimmy Hwang
- Department of Medical Oncology, Atrium Health Carolinas Medical Center, Levine Cancer Institute, Charlotte, North Carolina, USA
| | - Ruchi Shrestha
- Department of Radiology, Atrium Health, Charlotte, North Carolina, USA
| | - David A Iannitti
- Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, North Carolina, USA
| | - John B Martinie
- Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, North Carolina, USA
| | - Erin H Baker
- Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, North Carolina, USA
| | - Metin N Gurcan
- Center for Artificial Intelligence Research and the Clinical Image Analysis Lab, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Dionisios Vrochides
- Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, North Carolina, USA
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13
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Wei C, Li X, Jin Y, Zhang Y, Yuan Q. Does the liver facilitate aging-related cognitive impairment: Conversation between liver and brain during exercise? J Cell Physiol 2024. [PMID: 38704693 DOI: 10.1002/jcp.31287] [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: 01/13/2024] [Revised: 03/24/2024] [Accepted: 04/16/2024] [Indexed: 05/07/2024]
Abstract
Liver, an important regulator of metabolic homeostasis, is critical for healthy brain function. In particular, age-related neurodegenerative diseases seriously reduce the quality of life for the elderly. As population aging progresses rapidly, unraveling the mechanisms that effectively delay aging has become critical. Appropriate exercise is reported to improve aging-related cognitive impairment. Whereas current studies focused on exploring the effect of exercise on the aging brain itself, ignoring the persistent effects of peripheral organs on the brain through the blood circulation. The aim of this paper is to summarize the communication and aging processes of the liver and brain and to emphasize the metabolic mechanisms of the liver-brain axis about exercise ameliorating aging-related neurodegenerative diseases. A comprehensive understanding of the potential mechanisms about exercise ameliorating aging is critical for improving adaptation to age-related brain changes and formulating effective interventions against age-related cognitive decline.
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Affiliation(s)
- Changling Wei
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
| | - Xue Li
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
| | - Yu Jin
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
| | - Yuanting Zhang
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
| | - Qiongjia Yuan
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
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14
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Wilson C, Philp SJ, Hughes K. Torsion of the caudate lobe of the liver and concurrent necrohemorrhagic typhlocolitis in a zoo-housed Patagonian mara. J Vet Diagn Invest 2024:10406387241248594. [PMID: 38702955 DOI: 10.1177/10406387241248594] [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: 05/06/2024] Open
Abstract
Liver lobe torsion has been reported in many species, with frequent reports in rabbits. Here we describe caudate liver lobe torsion and concurrent necrohemorrhagic typhlocolitis in a Patagonian mara (syn: Patagonian cavy, Patagonian hare, Dolichotis patagonum). Following acute death, postmortem examination findings included torsion of the hepatic caudate process, which had fibrous adhesions to the pancreas indicating chronicity. The cecal apex and proximal 30 cm of colon had regionally reddened serosa and diffusely roughened and reddened mucosa with brown-red and granular luminal contents. Key histologic findings included massive necrosis of the torsed hepatic caudate lobe, consistent with infarction, necrotizing hepatitis in remaining areas of liver, necrohemorrhagic typhlocolitis, adrenocortical necrosis and hemorrhage, and renal tubular degeneration and necrosis with tubular casts. Bacterial culture of cecal contents yielded pure growth of Salmonella spp. Death was attributed to toxemia or bacteremia resulting from Salmonella spp. infection, as the hepatic lobe torsion appeared chronic. It was undetermined if the liver lobe torsion predisposed to gastrointestinal compromise and infection. Patagonian maras have some anatomical similarities to rabbits and are highly cursorial, not dissimilar to hares, Lepus spp. We speculate that these characteristics may increase the likelihood of hepatic caudate lobe torsion in this species.
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Affiliation(s)
- Catherine Wilson
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
| | | | - Katherine Hughes
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
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15
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Kehar M, Ibrahim SH, Ramirez CM, Amin SA, Diamond T, Mohammad S. Utilization and perspectives of weight loss medications in pediatric metabolic dysfunction-associated steatotic liver disease. J Pediatr Gastroenterol Nutr 2024. [PMID: 38698664 DOI: 10.1002/jpn3.12236] [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: 01/25/2024] [Revised: 04/06/2024] [Accepted: 04/21/2024] [Indexed: 05/05/2024]
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD) is increasing globally in pediatric populations. Currently, MASLD management primarily relies on lifestyle interventions, which pose challenges in sustaining long-term weight loss. This study investigated the use of weight loss medications in MASLD care through an international survey of 166 pediatric gastroenterologists and hepatologists. The results indicated a notable interest in weight loss medications, with 38% of practitioners considering or using them, particularly glucagon-like peptide-1 receptor agonists. However, the survey also revealed a tendency among clinicians to refer patients to specialists, emphasizing the potential gap between acknowledgment and prescription practices. Challenges include the lack of guidelines and uncertainty regarding side effects. The study highlights a pressing need for education, with over 90% of the respondents expressing an interest. Our study highlights the current management of MASLD, the potential role of pharmacotherapy, and highlights avenues for improved care and education in this dynamic field.
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Affiliation(s)
- Mohit Kehar
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Samar H Ibrahim
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Mayo Clinic, Rochester, Minnesota, USA
| | - Charina M Ramirez
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | | | - Tamir Diamond
- Division of Gastroenterology, Hepatology & Nutrition, Department of Pediatrics, Perelman School of Medicine, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Saeed Mohammad
- Division of Gastroenterology, Hepatology & Nutrition, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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16
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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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17
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Hassan HM, Abdel-Halim NHM, El-Shenbaby I, Helmy MA, Hammad MO, Habotta OA, El Nashar EM, Alghamdi MA, Aldahhan RA, Al-Khater KM, Almohaywi B, Farrag EAE. Phytic acid attenuates acetaminophen-induced hepatotoxicity via modulating iron-mediated oxidative stress and SIRT-1 expression in mice. Front Pharmacol 2024; 15:1384834. [PMID: 38751780 PMCID: PMC11094543 DOI: 10.3389/fphar.2024.1384834] [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: 02/10/2024] [Accepted: 04/04/2024] [Indexed: 05/18/2024] Open
Abstract
Introduction: Administration of high doses of acetaminophen (APAP) results in liver injury. Oxidative stress and iron overload play roles in the pathogenesis of APAP-induced hepatotoxicity. The present study assessed the potential hepatoprotective effects of phytic acid (PA), a natural antioxidant and iron chelator, on APAP-induced hepatotoxicity and the possible underlying mechanism through its effects on CYP2E1 gene expression, iron homeostasis, oxidative stress, and SIRT-1 expression levels. Methods: Twenty-four adult male albino mice were used in this study. Mice were divided into four groups (six mice in each group): control, APAP-treated, PA-treated and APAP + PA-treated groups. Liver function tests, serum and liver tissue iron load were evaluated in all the study groups. Hepatic tissue homogenates were used to detect oxidative stress markers, including malondialdehyde (MDA) and reduced glutathione (GSH). Histological hepatic evaluation and immunohistochemistry of SIRT-1 were performed. Quantitative real-time PCR was used for the assessment of CYP2E1 and SIRT-1 gene expressions. APAP-induced biochemical and structural hepatic changes were reported. Results: PA administration showed beneficial effects on APAP-induced hepatotoxicity through improvements in liver functions, decreased CYP2E1 gene expression, decreased serum and liver iron load, decreased MDA, increased GSH, increased SIRT-1 expression level and improvement in hepatic architecture. Conclusion: Conclusively, PA can be considered a potential compound that can attenuate acetaminophen-induced hepatotoxicity through its role as an iron chelator and antioxidant, as well as the up-regulation of SIRT-1 and down-regulation of CYP2E1.
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Affiliation(s)
- Hend M. Hassan
- Human Anatomy and Embryology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
- Human Anatomy and Embryology Department, New Mansoura University, New Mansoura, Egypt
| | | | - Ibrahim El-Shenbaby
- Clinical Pharmacology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Manar A. Helmy
- Forensic Medicine and Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Maha O. Hammad
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Ola A. Habotta
- Forensic Medicine and Toxicology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Eman M. El Nashar
- Department of Anatomy, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | - Mansour A. Alghamdi
- Department of Anatomy, College of Medicine, King Khalid University, Abha, Saudi Arabia
- Genomics and Personalized Medicine Unit, The Center for Medical and Health Research, King Khalid University, Abha, Saudi Arabia
| | - Rashid A. Aldahhan
- Department of Anatomy, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Khulood M. Al-Khater
- Department of Anatomy, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Basmah Almohaywi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Eman A. E. Farrag
- Clinical Pharmacology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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18
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Bakhshwin A, Herlitz L, Hu S, Raza S, Olevian DC, Mehdi A, Friedman K, Eghtesad B, Hashimoto K, Esfeh JM, El Hag MI. Immunotactoid hepatopathy: A novel entity with histologically proven recurrence post liver transplantation. Am J Transplant 2024; 24:865-871. [PMID: 38145784 DOI: 10.1016/j.ajt.2023.12.019] [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: 07/06/2023] [Revised: 12/07/2023] [Accepted: 12/20/2023] [Indexed: 12/27/2023]
Abstract
Immunotactoid deposition is a rare fibrillary deposition disease that is primarily seen in the kidney and is associated with paraproteinemia. Here, we report a case of hepatic immunotactoid deposition in a 67-year-old male with a history of smoldering myeloma and chronic kidney disease who underwent liver transplantation for metabolic dysfunction-related cirrhosis. Immunotactoid deposition was first identified in the explanted liver and recurred in the allograft within only 7 weeks following transplantation, presenting as ascites with normal liver function tests. The patient's posttransplant course was complicated by proteinuria and renal failure requiring dialysis. Histologic examination of both native and allograft livers demonstrated pink amorphous material occupying sinusoidal spaces that were Congo-red negative and immunoglobulin M Kappa-restricted. Electron microscopy revealed characteristic deposits of electron-dense bundles of hollow microtubules with a 40 nm diameter within the sinusoids and space of Disse, consistent with immunotactoids. Therapy of the patient's underlying plasma-cell dyscrasia utilizing a daratumumab-based regimen showed decreased serum paraproteins, resolution of ascites, and improved kidney function, no longer requiring dialysis, without inducing rejection. The patient continues to respond to treatment 10 months posttransplant.
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Affiliation(s)
- Ahmed Bakhshwin
- Department of Pathology, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Leal Herlitz
- Department of Anatomic Pathology, Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Shaomin Hu
- Department of Anatomic Pathology, Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Shahzad Raza
- Department of Hematology and Oncology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Dane C Olevian
- Department of Pathology, Anatomy, and Laboratory Medicine, West Virginia University, Morgantown, West Virginia, USA
| | - Ali Mehdi
- Department of Kidney Medicine, Cleveland Clinic, Cleveland, Ohio, USA
| | - Kenneth Friedman
- Department of Anatomic Pathology, Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Bijan Eghtesad
- Department of Abdominal transplantation, Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Koji Hashimoto
- Department of Abdominal transplantation, Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Jamak Modaresi Esfeh
- Department of Gastroenterology and Transplant Hepatology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Mohamed I El Hag
- Department of Anatomic Pathology, Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, Ohio, USA.
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19
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Couture Y, Keys D, Summers S. Comparison of hematologic variables between dogs with congenital intrahepatic and extrahepatic portosystemic shunts. J Vet Intern Med 2024; 38:1458-1464. [PMID: 38699882 PMCID: PMC11099786 DOI: 10.1111/jvim.17081] [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: 10/24/2023] [Accepted: 04/05/2024] [Indexed: 05/05/2024] Open
Abstract
BACKGROUND Dogs with congenital intrahepatic portosystemic shunt (IHPSS) are predisposed to gastrointestinal inflammation, ulceration, and bleeding, unlike dogs with congenital extrahepatic portosystemic shunt (EHPSS). Limited information is available about hematologic differences between dogs with IHPSS and dogs with EHPSS. OBJECTIVE Compare hemogram variables between dogs with IHPSS and EHPSS. We hypothesized that hematologic variables would differ between the 2 populations, with a higher frequency and severity of anemia and microcytosis in dogs with IHPSS. ANIMALS Twenty-six client-owned dogs with IHPSS and 35 client-owned dogs with EHPSS. METHODS Retrospective cross-sectional study. Dogs were included if a CBC was performed before shunt attenuation. Contingency analysis was performed to determine if the frequency of clinical signs and of hematologic variables below the reference range differed between groups. Hematologic and selected biochemical variables were compared between groups using an analysis of covariance with age as a covariate. RESULTS Gastrointestinal clinical signs (IHPSS, 81% vs EHPSS, 34%; P = .01), anemia (31% vs 6%; P = .01), microcytosis (77% vs 29%; P = .002), and hypochromia (77% vs 49%; P = .03) were more common in dogs with IHPSS than in dogs with EHPSS. Dogs with IHPSS had lower packed cell volume (34% vs 41%, P = .04), hemoglobin concentration (11.5 g/dL vs 13.7 g/dL, P = .03), mean corpuscular volume (57 fL vs 65 fL; P = .001), and mean corpuscular hemoglobin concentration (32 g/dL vs 33 g/dL; P = .04) than dogs with EHPSS. CONCLUSIONS AND CLINICAL IMPORTANCE Dogs with IHPSS had a higher frequency of anemia, microcytosis, and hypochromia and exhibited more gastrointestinal clinical signs.
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Affiliation(s)
- Yanick Couture
- Carlson College of Veterinary MedicineOregon State UniversityCorvallisOregonUSA
| | | | - Stacie Summers
- Carlson College of Veterinary MedicineOregon State UniversityCorvallisOregonUSA
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20
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Libby AE, Solt CM, Jackman MR, Sherk VD, Foright RM, Johnson GC, Nguyen TT, Breit MJ, Hulett N, Rudolph MC, Roberson PA, Wellberg EA, Jambal P, Scalzo RL, Higgins J, Kumar TR, Wierman ME, Pan Z, Shankar K, Klemm DJ, Moreau KL, Kohrt WM, MacLean PS. Effects of follicle-stimulating hormone on energy balance and tissue metabolic health after loss of ovarian function. Am J Physiol Endocrinol Metab 2024; 326:E626-E639. [PMID: 38536037 DOI: 10.1152/ajpendo.00400.2023] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/29/2024] [Accepted: 03/20/2024] [Indexed: 05/01/2024]
Abstract
Loss of ovarian function imparts increased susceptibility to obesity and metabolic disease. These effects are largely attributed to decreased estradiol (E2), but the role of increased follicle-stimulating hormone (FSH) in modulating energy balance has not been fully investigated. Previous work that blocked FSH binding to its receptor in mice suggested this hormone may play a part in modulating body weight and energy expenditure after ovariectomy (OVX). We used an alternate approach to isolate the individual and combined contributions of FSH and E2 in mediating energy imbalance and changes in tissue-level metabolic health. Female Wistar rats were ovariectomized and given the gonadotropin releasing hormone (GnRH) antagonist degarelix to suppress FSH production. E2 and FSH were then added back individually and in combination for a period of 3 wk. Energy balance, body mass composition, and transcriptomic profiles of individual tissues were obtained. In contrast to previous studies, suppression and replacement of FSH in our paradigm had no effect on body weight, body composition, food intake, or energy expenditure. We did, however, observe organ-specific effects of FSH that produced unique transcriptomic signatures of FSH in retroperitoneal white adipose tissue. These included reductions in biological processes related to lipogenesis and carbohydrate transport. In addition, rats administered FSH had reduced liver triglyceride concentration (P < 0.001), which correlated with FSH-induced changes at the transcriptomic level. Although not appearing to modulate energy balance after loss of ovarian function in rats, FSH may still impart tissue-specific effects in the liver and white adipose tissue that might affect the metabolic health of those organs.NEW & NOTEWORTHY We find no effect of follicle-stimulating hormone (FSH) on energy balance using a novel model in which rats are ovariectomized, subjected to gonadotropin-releasing hormone antagonism, and systematically given back FSH by osmotic pump. However, tissue-specific effects of FSH on adipose tissue and liver were observed in this study. These include unique transcriptomic signatures induced by the hormone and a stark reduction in hepatic triglyceride accumulation.
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Affiliation(s)
- Andrew E Libby
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Claudia M Solt
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Matthew R Jackman
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Vanessa D Sherk
- Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
- Center for Scientific Review, National Institutes of Health, Bethesda, Maryland, United States
| | - Rebecca M Foright
- Department of Anatomy and Cell Biology, University of Kansas Medical Campus, Kansas City, Kansas, United States
| | - Ginger C Johnson
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Thi-Tina Nguyen
- Section of Nutrition, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Matthew J Breit
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Nicholas Hulett
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Michael C Rudolph
- Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Campus, Oklahoma City, Oklahoma, United States
| | - Paul A Roberson
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Elizabeth A Wellberg
- Stephenson Cancer Center, University of Oklahoma Health Sciences Campus, Oklahoma City, Oklahoma, United States
| | - Purevsuren Jambal
- Section of Nutrition, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Rebecca L Scalzo
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Janine Higgins
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - T Rajendra Kumar
- Department of Obstetrics and Gynecology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Margaret E Wierman
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Zhaoxing Pan
- Section of Endocrinology, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Kartik Shankar
- Section of Nutrition, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Dwight J Klemm
- Cardiovascular Pulmonary Research Laboratory, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Kerrie L Moreau
- Division of Geriatric Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Wendy M Kohrt
- Division of Geriatric Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Paul S MacLean
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
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21
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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] [MESH Headings] [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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22
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Shaheen M, Lei GS, Relich RF, Jarasvaraparn C, Tolliver KM, Molleston JP, González IA. Granulomas in Pediatric Liver Biopsies: Single Center Experience. Pediatr Dev Pathol 2024; 27:218-227. [PMID: 38221675 DOI: 10.1177/10935266231221908] [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] [Indexed: 01/16/2024]
Abstract
BACKGROUND Granulomas in pediatric liver biopsies (GPLB) are rare with the largest pediatric cohort reported over 25 years ago. METHODS Single-center retrospective study of GPLB. RESULTS Seventeen liver biopsies from 16 patients with granulomas were identified (9 boys, 56%) with a median age of 13 years (range: 1-18) for which the most common indication was the presence of a nodule/mass (47%). Significant comorbidities were seen in 13 patients (81%) and included: liver transplant (25%), history of a neoplasm (25%), autoimmune hepatitis (6%), Crohn disease (6%), bipolar disorder (6%), severe combined immunodeficiency (6%), and sickle cell disease (6%). Eleven patients were taking multiple medications at the time of biopsy. Granulomas were more commonly pan-acinar (11 cases) followed by subcapsular (4 cases), portal (1 case), and periportal (1 case). Necrosis was seen in 10 cases (59%). GMS stain was positive in 2 cases for Histoplasma-like yeast; microbiological cultures were negative in all cases (no: 4). A 18S and 16S rRNA gene sequencing performed in 15 cases revealed only 1 with a pathogenic microorganism, Mycobacterium angelicum. CONCLUSION In our experience, GPLB are heterogenous with only 3 cases having an identifiable infectious etiology and many of the remaining cases being associated to multiple medications, suggesting drug-induced liver injury as possible etiology.
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Affiliation(s)
- Muhammad Shaheen
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Guang-Sheng Lei
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Ryan F Relich
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Chaowapong Jarasvaraparn
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Kyla M Tolliver
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jean P Molleston
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Iván A González
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
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23
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Ghasemzadeh Rahbardar M, Hosseinzadeh H. The ameliorative effect of turmeric (Curcuma longa Linn) extract and its major constituent, curcumin, and its analogs on ethanol toxicity. Phytother Res 2024; 38:2165-2181. [PMID: 38396341 DOI: 10.1002/ptr.8165] [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: 07/26/2023] [Revised: 12/09/2023] [Accepted: 02/04/2024] [Indexed: 02/25/2024]
Abstract
Ethanol toxicity is a major public health problem that can cause damage to various organs in the body by several mechanisms inducing oxidative stress, inflammation, and apoptosis. Recently, there has been a growing interest in the potential of herbal medicines as therapeutic agents for the prevention and treatment of various disorders. Turmeric (Curcuma longa) extracts and its main components including curcumin have antioxidant, anti-inflammatory, and anti-apoptotic properties. This review aims to evaluate the literature on the ameliorative effects of turmeric extracts and their main components on ethanol toxicity. The relevant studies were identified through searches of Google Scholar, PubMed, and Scopus without any time limitation. The underlying mechanisms of turmeric and curcumin were also discussed. The findings suggest that turmeric and curcumin ameliorate ethanol-induced organ damage by suppressing oxidative stress, inflammation, apoptosis, MAPK activation, TGF-β/Smad signaling pathway, hyperlipidemia, regulating hepatic enzymes, expression of SREBP-1c and PPAR-α. However, the limited clinical evidence suggests that further research is needed to determine the efficacy and safety of turmeric and curcumin in human subjects. In conclusion, the available evidence supports the potential use of turmeric and curcumin as alternative treatments for ethanol toxicity, but further high-quality studies are needed to firmly establish the clinical efficacy of the plant.
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Affiliation(s)
| | - Hossein Hosseinzadeh
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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24
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Saad Eddin A, Kamaraju A, Ramzan U, Yu J, Dadwal S, Laroia S. Splenic artery steal syndrome after liver transplantation: A case series and review of literature. Clin Case Rep 2024; 12:e8930. [PMID: 38745733 PMCID: PMC11091234 DOI: 10.1002/ccr3.8930] [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: 03/07/2024] [Revised: 04/29/2024] [Accepted: 05/02/2024] [Indexed: 05/16/2024] Open
Abstract
Splenic steal syndrome (SASS) represents a challenge to interventional radiologists after orthotopic liver transplantation. In this case series, we present three cases of patients who developed SASS after their liver transplants.
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Affiliation(s)
- Assim Saad Eddin
- Department of RadiologyUniversity of Iowa Hospitals and ClinicsIowa CityIowaUSA
| | - Abhiram Kamaraju
- Department of RadiologyUniversity of Iowa Hospitals and ClinicsIowa CityIowaUSA
| | - Umar Ramzan
- Northwestern University Feinberg School of MedicineChicagoIllinoisUSA
| | - Jay Yu
- Department of RadiologyUniversity of Iowa Hospitals and ClinicsIowa CityIowaUSA
| | - Surbhi Dadwal
- Department of RadiologyUniversity of Iowa Hospitals and ClinicsIowa CityIowaUSA
| | - Sandeep Laroia
- Department of RadiologyUniversity of Iowa Hospitals and ClinicsIowa CityIowaUSA
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25
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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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26
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Pirabbasi E, Zangeneh MM, Zangeneh A, Moradi R, Kalantar M. Chemical characterization and effect of Ziziphora clinopodioides green-synthesized silver nanoparticles on cytotoxicity, antioxidant, and antidiabetic activities in streptozotocin-induced hepatotoxicity in Wistar diabetic male rats. Food Sci Nutr 2024; 12:3443-3451. [PMID: 38726408 PMCID: PMC11077192 DOI: 10.1002/fsn3.4008] [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: 04/19/2023] [Revised: 01/16/2024] [Accepted: 01/23/2024] [Indexed: 05/12/2024] Open
Abstract
The present research studied the cytotoxicity, antioxidant, and antidiabetic activities of biogenically synthesized silver nanoparticles (AgNPs) using Ziziphora clinopodioides (Z. clinopodioides) as a green mediator. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and ultraviolet-visible spectroscopy (UV-Vis) were employed to determine AgNPs. In the in vivo experiment, the model rats were categorized into different groups receiving 50, 100, 200, and 400 μg/kg of AgNPs and diabetic, positive, and normal groups (n = 10) using a random division. A single dose of streptozotocin (STZ) at 60 mg/kg was administered to induce diabetes and hepatotoxicity in rats. The administration of AgNPs was performed via intragastric administration for 25 days. On the final day, the levels of glucose and biochemical enzymes, namely aspartate aminotransferase (AST), alkaline phosphatase (ALP), alanine transaminase (ALT), and gamma-glutamyltransferase (GGT), were assessed in the serum. Following tissue processing, liver sections with a thickness of 5 μm were prepared. Later, the total volume of different liver components, such as hepatocytes, sinusoids, portal vein, central vein, hepatic arteries, and bile ducts, was measured. The portal vein and bile duct volumes did not vary significantly in groups treated by AgNPs. However, the volume of the central vein and hepatic arteries exhibited noticeable variations in groups treated by AgNPs. After administration of streptozotocin, the volume of hepatocytes and sinusoids increased significantly. However, treatment with a high dose of AgNPs significantly decreased the volume of hepatocytes and sinusoids. In diabetic rats, administering AgNPs reduced the fasting blood glucose levels compared to the model group. In addition, AgNPs decreased the elevated levels of AST and ALP enzymes in a manner that depended on the dosage of AgNPs used. This research demonstrates the hepatoprotective and antidiabetic properties of AgNPs, suggesting their potential implications as hepatoprotective and antidiabetic supplements to prevent diabetes.
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Affiliation(s)
- Elham Pirabbasi
- Department of NutritionShoushtar Faculty of Medical SciencesShoushtarIran
| | - Mohammad Mahdi Zangeneh
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical SciencesIlamIran
| | - Akram Zangeneh
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical SciencesIlamIran
| | - Rohallah Moradi
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical SciencesIlamIran
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27
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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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28
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Laudari U, Acharya S, Malla BR. Liver pucker sign: predictor of difficult laparoscopic cholecystectomy: a case series. Ann Med Surg (Lond) 2024; 86:2442-2445. [PMID: 38694274 PMCID: PMC11060316 DOI: 10.1097/ms9.0000000000002017] [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: 01/07/2024] [Accepted: 03/16/2024] [Indexed: 05/04/2024] Open
Abstract
Introduction Pucker sign is the depression of the liver in the region of the gallbladder due to a high degree of chronic contractive inflammation of the gallbladder. It usually develops in patients who have a delayed cholecystectomy after acute cholecystitis due to a high degree of chronic contractive inflammation of the gallbladder and contraction of the cystic plate. It is an essential finding either preoperatively or intraoperatively as it can act as a stopping rule during cholecystectomy (act as a guide that cholecystectomy will be difficult). Case series The authors here report three cases of pucker sign that were incidentally discovered during laparoscopy. Discussion Chronic cholecystitis is a prolonged, subacute condition caused by inflammation of the gallbladder, which mostly occurs in the setting of cholelithiasis. Laparoscopic cholecystectomy is the procedure of choice for symptomatic cholelithiasis. Hence, it would be beneficial to be aware of reliable signs that predict difficult Laparoscopic cholecystectomy. Pucker sign usually predicts increased operative difficulty as there is an operative danger of biliary or vascular injury. Conclusion The pucker sign is a novel indicator of significant persistent inflammation and heightened difficulty during surgery. It might establish a halting rule that modifies the procedure's management and raises its level of safety.
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Affiliation(s)
- Uttam Laudari
- Department of Surgery, Kathmandu University School of Medical Sciences
| | - Suyash Acharya
- Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Dhulikhel, Nepal
| | - Bala Ram Malla
- Department of Surgery, Kathmandu University School of Medical Sciences
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29
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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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30
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Limaiem F, Hajri M. Polycystic liver disease: An uncommon genetic condition. Clin Case Rep 2024; 12:e8892. [PMID: 38711839 PMCID: PMC11070482 DOI: 10.1002/ccr3.8892] [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: 06/12/2023] [Revised: 11/15/2023] [Accepted: 04/23/2024] [Indexed: 05/08/2024] Open
Abstract
Key Clinical Message Timely recognition, accurate diagnosis, and proper management are vital for preventing complications and improving outcomes in polycystic liver disease. Abstract Polycystic liver disease is an uncommon genetic condition characterized by the presence of over 20 liver cysts. It is symptomatic in only 5% of cases. Surgical intervention remains the primary treatment approach for managing symptoms in affected patients. Herein, we report a case of PLD revealed by severe abdominal pain.
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Affiliation(s)
- Faten Limaiem
- Tunis Faculty of MedicineUniversity of Tunis El ManarTunisTunisia
- Department of PathologyUniversity Hospital Mongi SlimLa MarsaTunisia
| | - Mohamed Hajri
- Tunis Faculty of MedicineUniversity of Tunis El ManarTunisTunisia
- Department of SurgeryUniversity Hospital Mongi SlimLa MarsaTunisia
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31
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Buckley LF, Libby P. Colchicine's Role in Cardiovascular Disease Management. Arterioscler Thromb Vasc Biol 2024; 44:1031-1041. [PMID: 38511324 PMCID: PMC11047118 DOI: 10.1161/atvbaha.124.319851] [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] [Indexed: 03/22/2024]
Abstract
Colchicine-an anti-inflammatory alkaloid-has assumed an important role in the management of cardiovascular inflammation ≈3500 years after its first medicinal use in ancient Egypt. Primarily used in high doses for the treatment of acute gout flares during the 20th century, research in the early 21st century demonstrated that low-dose colchicine effectively treats acute gout attacks, lowers the risk of recurrent pericarditis, and can add to secondary prevention of major adverse cardiovascular events. As the first Food and Drug Administration-approved targeted anti-inflammatory cardiovascular therapy, colchicine currently has a unique role in the management of atherosclerotic cardiovascular disease. The safe use of colchicine requires careful monitoring for drug-drug interactions, changes in kidney and liver function, and counseling regarding gastrointestinal upset. Future research should elucidate the mechanisms of anti-inflammatory effects of colchicine relevant to atherosclerosis, the potential role of colchicine in primary prevention, in other cardiometabolic conditions, colchicine's safety in cardiovascular patients, and opportunities for individualizing colchicine therapy using clinical and molecular diagnostics.
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Affiliation(s)
- Leo F. Buckley
- Department of Pharmacy, Brigham and Women’s Hospital, Boston MA
| | - Peter Libby
- Division of Cardiovascular Medicine, Brigham and Women’s Hospital, Boston MA
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32
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Mohammadi S, Ashtary-Larky D, Asbaghi O, Farrokhi V, Jadidi Y, Mofidi F, Mohammadian M, Afrisham R. Effects of silymarin supplementation on liver and kidney functions: A systematic review and dose-response meta-analysis. Phytother Res 2024; 38:2572-2593. [PMID: 38475999 DOI: 10.1002/ptr.8173] [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: 03/29/2023] [Revised: 01/12/2024] [Accepted: 02/11/2024] [Indexed: 03/14/2024]
Abstract
It is suggested that supplementation with silymarin (SIL) has beneficial impacts on kidney and liver functions. This systematic review and dose-response meta-analysis assessed the impact of SIL administration on certain hepatic, renal, and oxidative stress markers. A systematic search was conducted in various databases to identify relevant trials published until January 2023. Randomized controlled trials (RCTs) that evaluated the effects of SIL on kidney and liver markers were included. A random-effects model was used for the analysis and 41 RCTs were included. The pooled results indicated that SIL supplementation led to a significant reduction in serum levels of alkaline phosphatase, alanine transaminase, creatinine, and aspartate aminotransferase, along with a substantial elevation in serum glutathione in the SIL-treated group compared to their untreated counterparts. In addition, there was a nonsignificant decrease in serum levels of gamma-glutamyl transferase, malondialdehyde (MDA), total bilirubin, albumin (Alb), total antioxidant capacity, and blood urea nitrogen. Sub-group analyses revealed a considerable decline in MDA and Alb serum values among SIL-treated participants with liver disease in trials with a longer duration (≥12 weeks). These findings suggest that SIL may ameliorate certain liver markers with potential hepatoprotective effects, specifically with long-term and high-dose supplementation. However, its nephroprotective effects and impact on oxidative stress markers were not observed. Additional high-quality RCTs with longer durations are required to determine the clinical efficacy of SIL supplementation on renal and oxidative stress markers.
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Affiliation(s)
- Shooka Mohammadi
- Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Damoon Ashtary-Larky
- Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Omid Asbaghi
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vida Farrokhi
- Department of Hematology, Faculty of Allied Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Yasaman Jadidi
- Department of Clinical Laboratory Sciences, Faculty of Allied Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Mofidi
- Department of Clinical Nutrition and Dietetics, National Nutrition and Food Technology Research Institute, Faculty of Nutrition and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehrnaz Mohammadian
- Department of Exercise Physiology, Islamic Azad University of Ahvaz, Ahvaz, Iran
| | - Reza Afrisham
- Department of Clinical Laboratory Sciences, Faculty of Allied Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Jager MC, Choi E, Tomlinson JE, Van de Walle G. Naturally acquired equine parvovirus-hepatitis is associated with a wide range of hepatic lesions in horses. Vet Pathol 2024; 61:442-452. [PMID: 38018088 PMCID: PMC11068485 DOI: 10.1177/03009858231214024] [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] [Indexed: 11/30/2023]
Abstract
Equine parvovirus-hepatitis (EqPV-H) is the causative agent of Theiler's disease, or severe acute hepatic necrosis, in horses. However, it is poorly understood whether EqPV-H is associated with other histologic findings in horses with clinical liver disease. The objective of this study was to examine the prevalence and severity of EqPV-H infections in diagnostic liver samples. Archived formalin-fixed, paraffin-embedded (FFPE) liver samples (n = 98) from Cornell University and University of California, Davis, collected between 2007 and 2022 were evaluated for 15 individual histologic features and by EqPV-H in situ hybridization. EqPV-H was detected in 48% (n = 47) of samples. The most common histologic features of EqPV-H-positive samples included individual hepatocyte death (n = 40, 85%), lobular infiltrates (n = 38, 80%), portal infiltrates (n = 35, 74%), and ductular reaction (n = 33, 70%). Centrilobular necrosis, portal infiltrate, and individual hepatocyte death were positively associated with high viral load. Neutrophil infiltrates, bridging fibrosis, and portal edema were negatively associated with a high viral load. Only 4 of 49 tested samples were positive for equine hepacivirus by polymerase chain reaction (PCR), but the PCR assay was unreliable for FFPE tissues. In summary, this study demonstrates that EqPV-H is common in a variety of liver pathologies and should be considered as a differential diagnosis in cases of hepatitis other than Theiler's disease.
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Affiliation(s)
| | - Eunju Choi
- University of California, Davis, Davis, CA
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Couchepin J, Reinhold I, Kronig I, Guidi M, Buclin T, Schreiber PW, Neofytos D, Lamoth F. Isavuconazole for the Treatment of Fungal Infections: A Real-life Experience From the Fungal Infection Network of Switzerland (FUNGINOS). Open Forum Infect Dis 2024; 11:ofae223. [PMID: 38756765 PMCID: PMC11097116 DOI: 10.1093/ofid/ofae223] [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: 03/08/2024] [Accepted: 04/24/2024] [Indexed: 05/18/2024] Open
Abstract
This analysis of 116 isavuconazole therapy courses shows that hepatic test disturbances (HTDs) were relatively frequent (29% of cases) but rarely led to treatment interruption (5%). Importantly, patients with baseline HTDs, including those attributed to a first-line triazole, did not exhibit a higher risk of subsequent HTD under isavuconazole therapy.
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Affiliation(s)
- Jade Couchepin
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Ilana Reinhold
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital of Zurich and University of Zurich, Zurich, Switzerland
| | - Ilona Kronig
- Division of Infectious Diseases, University Hospital of Geneva, Geneva, Switzerland
| | - Monia Guidi
- Service of Clinical Pharmacology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland
- Centre for Research and Innovation in Clinical Pharmaceutical Sciences, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Thierry Buclin
- Service of Clinical Pharmacology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Peter W Schreiber
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital of Zurich and University of Zurich, Zurich, Switzerland
| | - Dionysios Neofytos
- Division of Infectious Diseases, University Hospital of Geneva, Geneva, Switzerland
| | - Frederic Lamoth
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Institute of Microbiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
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Pierce GF, Fong S, Long BR, Kaczmarek R. Deciphering conundrums of adeno-associated virus liver-directed gene therapy: focus on hemophilia. J Thromb Haemost 2024; 22:1263-1289. [PMID: 38103734 DOI: 10.1016/j.jtha.2023.12.005] [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: 09/15/2023] [Revised: 11/07/2023] [Accepted: 12/01/2023] [Indexed: 12/19/2023]
Abstract
Adeno-associated virus gene therapy has been the subject of intensive investigation for monogenic disease gene addition therapy for more than 25 years, yet few therapies have been approved by regulatory agencies. Most have not progressed beyond phase 1/2 due to toxicity, lack of efficacy, or both. The liver is a natural target for adeno-associated virus since most serotypes have a high degree of tropism for hepatocytes due to cell surface receptors for the virus and the unique liver sinusoidal geometry facilitating high volumes of blood contact with hepatocyte cell surfaces. Recessive monogenic diseases such as hemophilia represent promising targets since the defective proteins are often synthesized in the liver and secreted into the circulation, making them easy to measure, and many do not require precise regulation. Yet, despite initiation of many disease-specific clinical trials, therapeutic windows are often nonexistent, resulting in excess toxicity and insufficient efficacy. Iterative progress built on these attempts is best illustrated by hemophilia, with the first regulatory approvals for factor IX and factor VIII gene therapies eventually achieved 25 years after the first gene therapy studies in humans. Although successful gene transfer may result in the production of sufficient transgenic protein to modify the disease, many emerging questions on durability, predictability, reliability, and variability of response have not been answered. The underlying biology accounting for these heterogeneous responses and the interplay between host and virus is the subject of intense investigation and the subject of this review.
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Affiliation(s)
- Glenn F Pierce
- World Federation of Hemophilia, Montreal, Quebec, Canada.
| | - Sylvia Fong
- BioMarin Pharmaceutical Inc, Research and Early Development, Novato, California, USA
| | - Brian R Long
- BioMarin Pharmaceutical Inc, Research and Early Development, Novato, California, USA
| | - Radoslaw Kaczmarek
- Department of Pediatrics, Indiana University School of Medicine, Wells Center for Pediatric Research, Indiana, USA; Laboratory of Glycobiology, Hirszfeld Institute of Immunology and Experimental Therapy, Wroclaw, Poland
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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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Biswas T, Rajendran N, Hassan H, Li H, Zhao C, Rohner N. 3D spheroid culturing of Astyanax mexicanus liver-derived cell lines recapitulates distinct transcriptomic and metabolic states of in vivo tissue environment. J Exp Zool B Mol Dev Evol 2024; 342:301-312. [PMID: 38192038 PMCID: PMC11060904 DOI: 10.1002/jez.b.23236] [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: 06/08/2023] [Revised: 10/26/2023] [Accepted: 12/23/2023] [Indexed: 01/10/2024]
Abstract
In vitro assays are crucial tools for gaining detailed insights into various biological processes, including metabolism. Cave morphs of the river-dwelling fish species, Astyanax mexicanus, have adapted their metabolism allowing them to thrive in the biodiversity-deprived and nutrient-limited environment of caves. Liver-derived cells from the cave and river morphs of A. mexicanus have proven to be excellent in vitro resources to better understand the unique metabolism of these fish. However, the current 2D cultures have not fully captured the complex metabolic profile of the Astyanax liver. It is known that 3D culturing can modulate the transcriptomic state of cells when compared to its 2D monolayer culture. Therefore, to broaden the possibilities of the in vitro system by modeling a wider gamut of metabolic pathways, we cultured the liver-derived Astyanax cells of both surface and cavefish into 3D spheroids. We successfully established 3D cultures at various cell seeding densities for several weeks and characterized the resultant transcriptomic and metabolic variations. We found that the 3D cultured Astyanax cells exhibit an altered transcriptomic profile and consequently represent a wider range of metabolic pathways, including cell cycle changes and antioxidant activities, associated with liver functioning as compared to its monolayer culture. Enzymatic assay measuring antioxidants in 2D culture and 3D spheroids also revealed enhanced antioxidative capacity of 3D cultured spheroids, in line with the differential gene expression data. Additionally, the spheroids also exhibited surface and cave-specific metabolic signatures, making it a suitable system for evolutionary studies associated with cave adaptation. Notably, cavefish derived spheroids enriched for genes responding to xenobiotic stimulus, while the ones from surface enriched for immune response, both of which resonated with known physiologically adaptations associated with each morph. Taken together, the liver-derived spheroids prove to be a promising in vitro model for widening our understanding of metabolism in A. mexicanus and of vertebrates in general.
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Affiliation(s)
- Tathagata Biswas
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA
| | - Naresh Rajendran
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA
| | - Huzaifa Hassan
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA
| | - Hua Li
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA
| | - Chongbei Zhao
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA
| | - Nicolas Rohner
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA
- Department of Cell Biology & Physiology, University of Kansas Medical Center, Kansas City, KS 66103, USA
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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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Palomares A, Espada Y, Tobón Restrepo M, Abarca ML, Torrente C, Martino L, Viñeta C, Roura X, Novellas R. Emphysematous pyometra and emphysematous hepatitis caused by Klebsiella pneumoniae infection in a diabetic dog. Vet Radiol Ultrasound 2024; 65:203-207. [PMID: 38357787 DOI: 10.1111/vru.13340] [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: 11/01/2023] [Revised: 12/19/2023] [Accepted: 01/16/2024] [Indexed: 02/16/2024] Open
Abstract
A 14-year-old intact female diabetic dog presented with seizures and hyperglycemic hyperosmolar syndrome. Radiographs revealed gas-filled tubular structures in the right and left caudal abdomen, raising concerns of emphysematous pyometra or small intestinal ileus. Ultrasonography played a pivotal role in confirming emphysematous pyometra, a technique previously documented only once in veterinary practice. This report also presents the first documented case of emphysematous pyometra in a diabetic dog attributed to Klebsiella pneumoniae and complicated by emphysematous hepatitis.
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Affiliation(s)
- Anna Palomares
- Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Yvonne Espada
- Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, Barcelona, Spain
- Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain
| | | | - Maria Lourdes Abarca
- Servei Veterinari de Bacteriologia i Micologia, Facultat de Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Carlos Torrente
- Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, Barcelona, Spain
- Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Laura Martino
- Servei de Diagnòstic de Patologia Veterinària, Facultat de Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Clàudia Viñeta
- Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Xavier Roura
- Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Rosa Novellas
- Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, Barcelona, Spain
- Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain
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Ailhaud A, Girard E, Fournier J, Abba J, Devant E, Betry C, Risse O, Roth GS, d'Engremont C, Chirica M. Completion pancreatectomy during pancreatoduodenectomy: A lifesaving solution in high-risk patients. World J Surg 2024; 48:1123-1131. [PMID: 38553833 DOI: 10.1002/wjs.12159] [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: 12/17/2023] [Accepted: 03/05/2024] [Indexed: 05/12/2024]
Abstract
BACKGROUND Postoperative pancreatic fistula (POPF) is responsible of most major complications and fatalities after PD. By avoiding POPF, TP may improve operative outcomes in high-risk patients. The aim was to compare total pancreatectomy (TP) and pancreatoduodenectomy (PD) in high-risk patients and evaluate results of implementing a risk-tailored strategy in clinical practice. METHODS Between 2014 and 2023, 139 patients (76 men, median age 67 years) underwent resection of disease located in the head of the pancreas. Starting January 1, 2022, we offered TP to patients at high POPF risks (fistula risk score (FRS) ≥7) and to patients with intermediate POPF risks (FRS: 3-6) and high risks of failure to rescue (age> 75 years, ASA score ≥3). We compared outcomes of TP and PD and evaluated the results of the new strategy implementation on operative outcomes. Propensity score-based analysis was performed to limit bias of between-group comparison. RESULTS Eventually, 26 (19%) patients underwent TP and 113 (81%) patients underwent PD. Severe complications occurred in 42 (30%) patients and 13 (9%) patients died. TP resulted in shorter lengths of hospital stay (median: 14 days [11; 18] vs. 17 days [13; 24], p = 0.016) and less risks of post-pancreatectomy hemorrhage (PPH) (0% vs. 20%, p < 0.001) compared to PD. Crude and propensity match analysis showed that the implementation of a risk-tailored strategy led to significant reduction of reoperation, POPF, PPH and mortality rates. CONCLUSION The use of TP as part of a risk-tailored strategy in high-risk patients can be lifesaving.
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Affiliation(s)
- Antoine Ailhaud
- University Grenoble Alpes, CNRS, CHU Grenoble Alpes, Grenoble INP, TIMC, Grenoble, France
- Department of Digestive Surgery, University Grenoble Alpes, CHU Grenoble Alpes, Grenoble, France
| | - Edouard Girard
- University Grenoble Alpes, CNRS, CHU Grenoble Alpes, Grenoble INP, TIMC, Grenoble, France
- Department of Digestive Surgery, University Grenoble Alpes, CHU Grenoble Alpes, Grenoble, France
| | - Joey Fournier
- Department of Public Health Centre, Hospitalier Grenoble Alpes, Grenoble, France
| | - Julio Abba
- Department of Digestive Surgery, University Grenoble Alpes, CHU Grenoble Alpes, Grenoble, France
| | - Emmanuel Devant
- Department of Digestive Surgery, University Grenoble Alpes, CHU Grenoble Alpes, Grenoble, France
| | - Cecile Betry
- Univ. Grenoble Alpes, LRB, INSERM, Endocrinology Department, CHU Grenoble Alpes, Grenoble, France
| | - Olivier Risse
- Department of Digestive Surgery, University Grenoble Alpes, CHU Grenoble Alpes, Grenoble, France
| | - Gaël S Roth
- Univ. Grenoble Alpes/Hepato-Gastroenterology and Digestive Oncology Department, CHU Grenoble Alpes/Institute for Advanced Biosciences, CNRS UMR 5309-INSERM U1209, Grenoble, France
| | - Christelle d'Engremont
- Univ. Grenoble Alpes/Hepato-Gastroenterology and Digestive Oncology Department, CHU Grenoble Alpes/Institute for Advanced Biosciences, CNRS UMR 5309-INSERM U1209, Grenoble, France
| | - Mircea Chirica
- University Grenoble Alpes, CNRS, CHU Grenoble Alpes, Grenoble INP, TIMC, Grenoble, France
- Department of Digestive Surgery, University Grenoble Alpes, CHU Grenoble Alpes, Grenoble, France
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Grander M, Haschka D, Indelicato E, Kremser C, Amprosi M, Nachbauer W, Henninger B, Stefani A, Högl B, Fischer C, Seifert M, Kiechl S, Weiss G, Boesch S. Genetic Determined Iron Starvation Signature in Friedreich's Ataxia. Mov Disord 2024. [PMID: 38686449 DOI: 10.1002/mds.29819] [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: 12/28/2023] [Revised: 04/02/2024] [Accepted: 04/09/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND Early studies in cellular models suggested an iron accumulation in Friedreich's ataxia (FA), yet findings from patients are lacking. OBJECTIVES The objective is to characterize systemic iron metabolism, body iron storages, and intracellular iron regulation in FA patients. METHODS In FA patients and matched healthy controls, we assessed serum iron parameters, regulatory hormones as well as the expression of regulatory proteins and iron distribution in peripheral blood mononuclear cells (PBMCs). We applied magnetic resonance imaging with R2*-relaxometry to quantify iron storages in the liver, spleen, and pancreas. Across all evaluations, we assessed the influence of the genetic severity as expressed by the length of the shorter GAA-expansion (GAA1). RESULTS We recruited 40 FA patients (19 women). Compared to controls, FA patients displayed lower serum iron and transferrin saturation. Serum ferritin, hepcidin, mean corpuscular hemoglobin and mean corpuscular volume in FA inversely correlated with the GAA1-repeat length, indicating iron deficiency and restricted availability for erythropoiesis with increasing genetic severity. R2*-relaxometry revealed a reduction of splenic and hepatic iron stores in FA. Liver and spleen R2* values inversely correlated with the GAA1-repeat length. FA PBMCs displayed downregulation of ferritin and upregulation of transferrin receptor and divalent metal transporter-1 mRNA, particularly in patients with >500 GAA1-repeats. In FA PBMCs, intracellular iron was not increased, but shifted toward mitochondria. CONCLUSIONS We provide evidence for a previously unrecognized iron starvation signature at systemic and cellular levels in FA patients, which is related to the underlying genetic severity. These findings challenge the use of systemic iron lowering therapies in FA. © 2024 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Manuel Grander
- Department of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria
| | - David Haschka
- Department of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria
| | - Elisabetta Indelicato
- Center for Rare Movement Disorders Innsbruck, Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Christian Kremser
- Department of Radiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Matthias Amprosi
- Center for Rare Movement Disorders Innsbruck, Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Wolfgang Nachbauer
- Center for Rare Movement Disorders Innsbruck, Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Benjamin Henninger
- Department of Radiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Ambra Stefani
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Birgit Högl
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Christine Fischer
- Department of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria
| | - Markus Seifert
- Department of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria
| | - Stefan Kiechl
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
- VASCage, Centre on Clinical Stroke Research, Innsbruck, Austria
| | - Günter Weiss
- Department of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria
| | - Sylvia Boesch
- Center for Rare Movement Disorders Innsbruck, Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
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Ertik O, Yanardag R. Purification and characterization of glutamate dehydrogenase from rainbow trout (Oncorhynchus mykiss) liver and molecular docking studies. Biotechnol Appl Biochem 2024. [PMID: 38689532 DOI: 10.1002/bab.2593] [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: 02/23/2024] [Accepted: 04/16/2024] [Indexed: 05/02/2024]
Abstract
Glutamate dehydrogenase (GDH) participates in the energy metabolism of proteins and the synthesis of metabolites important for the organism. In this study, GDH enzyme was purified from the liver of rainbow trout (Oncorhynchus mykiss) by 2',5'-ADP Sepharose 4B affinity chromatography in one step. As a result of this purification process, GDH enzyme was purified 171-fold with 5.83 U/mg protein-specific activity. The characterization experiments presented that the storage stability of the purified GDH enzyme was determined as -80°C; optimum temperature 40°C; it was determined that the optimum ionic strength was 100 mM phosphate buffer and the optimum pH was 8.00. Sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and PAGE studies showed that the natural molar mass of the purified GDH enzyme was 346.74 kDa, and the molar mass of its subunits was 53.71 kDa. Km and Vmax values for substrates and coenzymes of GDH enzyme purified from rainbow trout liver were calculated, and the lowest Km value was found in NAD+ (1.86 mM) and the highest Vmax value in NH4 + (1.79 U/mL). The effects of some metal ions, vitamins, and solvents on the activity of the purified GDH enzyme were investigated and also IC50 values and inhibition types. The metal ion with the lowest IC50 value is Ag+ (8.65 ± 1.68 μM), and the vitamin is B6 (0.77 ± 0.04 mM). The binding affinities of inhibitors were investigated with molecular docking, based on the conformational state of GDH.
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Affiliation(s)
- Onur Ertik
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpaşa, Avcilar, Istanbul, Turkey
| | - Refiye Yanardag
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpaşa, Avcilar, Istanbul, Turkey
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Sahu SC. A proposed in vitro cytotoxicity test battery to detect and predict hepatotoxicity via multiple mechanisms and pathways: a minireview. J Appl Toxicol 2024. [PMID: 38686668 DOI: 10.1002/jat.4619] [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: 03/26/2024] [Revised: 04/05/2024] [Accepted: 04/16/2024] [Indexed: 05/02/2024]
Abstract
The 21st-century toxicity testing program recommends the use of cytotoxicity data from human cells in culture for rapid in vitro screening focusing on biological pathways of potential toxicants to predict in vivo toxicity. Liver is the major organ for both endogenous and exogenous chemical metabolism of xenobiotics. Therefore, this review was undertaken to evaluate side by side five different currently used commercial cytotoxicity assay kits for purpose of rapid predictive screening of potential hepatotoxicants. The test compounds for this review were selected from the NIH LiverTox and FDA Liver Toxicity Knowledge Base (LTKB) databases. Human liver HepG2, HepaRG, and rat liver Clone 9 cell cultures were used as the in vitro liver models. Five commercial assay kits representing different biomarkers or pathways were selected for this review. These kits are Vita-Orange Cell Viability Assay Kit (Sigma-Aldrich), CellTiter-Glo Cell Viability Assay Kit (Promega), CytoTox-ONE Homogeneous Membrane Integrity Assay Kit (Promega), DNA Quantitation Fluorescence Assay Kit (Sigma-Aldrich), and Neutral Red Based In Vitro Toxicology Assay Kit (Sigma-Aldrich). This review found that these kits can all be used for rapid predictive cytotoxicity screening of potential hepatotoxicants in human liver HepG2 and rat liver Clone 9 cells in culture as in vitro liver models without compromising quality and accuracy of endpoint measurements as well as the length of toxicity screening time. Unraveling the structure-activity relationship of potential hepatotoxins would help to classify their hepatotoxic effects. Therefore, in addition to the current regulatory hepatotoxicity testing strategies, development and regulatory approval of hepatotoxins need to be discussed in order to identify potential gaps in the safety assessment. The overall results of our study support the hypothesis that a battery of rapid, simple, and reliable assays is an excellent tool for predicting in vivo effects of suspected liver toxins. The human liver HepaRG cells do not appear to be an ideal in vitro liver model for this purpose.
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Affiliation(s)
- Saura C Sahu
- US Food and Drug Administration, Columbia, Maryland, USA
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Yusof B, Kamal I, Lee KM, Chai SK, Zuo XL, Ravichandran M, Ding KX, Fuloria NK, Tham SK. A case series on safety and tolerability of human umbilical cord-derived mesenchymal stem cells on patients in Malaysia. SAGE Open Med Case Rep 2024; 12:2050313X241249622. [PMID: 38694904 PMCID: PMC11062224 DOI: 10.1177/2050313x241249622] [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: 10/02/2023] [Accepted: 04/08/2024] [Indexed: 05/04/2024] Open
Abstract
Umbilical cord-derived mesenchymal stem cells for regenerative therapy are a promising treatment option for chronic illnesses. Umbilical cord-derived mesenchymal stem cells offer several advantages over other sources, which makes them an attractive option in tissue repair and regeneration. This clinical study describes a 1-year follow-up on the safety and tolerance of umbilical cord-derived mesenchymal stem cell therapy on nine patients in Malaysia. Patients were assessed for adverse effects, and liver function tests were carried out on both pre- and post-treatments. Umbilical cord-derived mesenchymal stem cells' effectiveness and safety were assessed by follow-up evaluations. All nine patients responded positively towards umbilical cord-derived mesenchymal stem cell therapy, without any adverse effects. After umbilical cord-derived mesenchymal stem cell therapy, a significant improvement was observed in liver functioning test outcomes, as haematological parameters and tumour markers were stable. The present study concludes that umbilical cord-derived mesenchymal stem cell therapy is well tolerated by Malaysian patients; however, further clinical screening must be done over a large number of patients population.
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Affiliation(s)
- Basmullah Yusof
- ALPS Medical Centre, ALPS Global Holding, Kuala Lumpur, Malaysia
| | | | - Ka Man Lee
- Celestialab Sdn Bhd, Kuala Lumpur, Malaysia
| | | | - Xia Lin Zuo
- ALPS Medical Centre, ALPS Global Holding, Kuala Lumpur, Malaysia
- Institute of Neurosciences, Guangzhou Medical University Hospital, Guangzhou, China
| | - Manickam Ravichandran
- Mygenome, ALPS Global Holding, Kuala Lumpur, Malaysia
- Department of Biotechnology, Faculty of Applied Sciences, AIMST University, Bedong, Kedah, Malaysia
| | - Ke Xiang Ding
- ALPS Medical Centre, ALPS Global Holding, Kuala Lumpur, Malaysia
- Southern Medical University of China, Guangzhou, Guangdong, China
| | - Neeraj Kumar Fuloria
- Faculty of Pharmacy, AIMST University, Kedah, Malaysia
- Centre for Transdisciplinary Research, Department of Pharmacology, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College and Hospital, Saveetha University, Chennai, Tamil Nadu, India
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Shipelin VA, Skiba EA, Budayeva VV, Shumakova AA, Kolobanov AI, Sokolov IE, Maisaya KZ, Guseva GV, Trusov NV, Masyutin AG, Delegan YA, Kocharovskaya YN, Bogun AG, Gmoshinski IV, Khotimchenko SA, Nikityuk DB. Toxicological Characteristics of Bacterial Nanocellulose in an In Vivo Experiment-Part 1: The Systemic Effects. Nanomaterials (Basel) 2024; 14:768. [PMID: 38727362 PMCID: PMC11085383 DOI: 10.3390/nano14090768] [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] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 05/12/2024]
Abstract
Bacterial nanocellulose (BNC) is being considered as a potential replacement for microcrystalline cellulose as a food additive and a source of dietary fiber due to its unique properties. However, studies on the risks of consuming BNC in food are limited, and it is not yet approved for use in food in the US, EU, and Russia. AIM This study aims to perform a toxicological and hygienic assessment of the safety of BNC in a subacute 8-week administration in rats. METHODS BNC was administered to male Wistar rats in doses of 0, 1.0, 10.0, and 100 mg/kg body weight for 8 weeks. Various parameters such as anxiety levels, cognitive function, organ masses, blood serum and liver biochemistry, oxidative stress markers, vitamin levels, antioxidant gene expression, and liver and kidney histology were evaluated. RESULTS Low and medium doses of BNC increased anxiety levels and liver glutathione, while high doses led to elevated LDL cholesterol, creatinine, and uric acid levels. Liver tissue showed signs of degeneration at high doses. BNC did not significantly affect vitamin levels. CONCLUSION The adverse effects of BNC are either not dose-dependent or fall within normal physiological ranges. Any effects on rats are likely due to micronutrient deficiencies or impacts on intestinal microbiota.
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Affiliation(s)
- Vladimir A. Shipelin
- Federal Research Centre of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia; (A.A.S.); (A.I.K.); (I.E.S.); (K.Z.M.); (N.V.T.); (I.V.G.); (S.A.K.); (D.B.N.)
- Academic Department of Innovational Materials and Technologies Chemistry, Plekhanov Russian University of Economics, 117997 Moscow, Russia
| | - Ekaterina A. Skiba
- Institute for Problems of Chemical and Energetic Technologies, Siberian Branch of the Russian Academy of Sciences, 659322 Biysk, Russia; (E.A.S.); (V.V.B.)
| | - Vera V. Budayeva
- Institute for Problems of Chemical and Energetic Technologies, Siberian Branch of the Russian Academy of Sciences, 659322 Biysk, Russia; (E.A.S.); (V.V.B.)
| | - Antonina A. Shumakova
- Federal Research Centre of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia; (A.A.S.); (A.I.K.); (I.E.S.); (K.Z.M.); (N.V.T.); (I.V.G.); (S.A.K.); (D.B.N.)
| | - Alexey I. Kolobanov
- Federal Research Centre of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia; (A.A.S.); (A.I.K.); (I.E.S.); (K.Z.M.); (N.V.T.); (I.V.G.); (S.A.K.); (D.B.N.)
| | - Ilya E. Sokolov
- Federal Research Centre of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia; (A.A.S.); (A.I.K.); (I.E.S.); (K.Z.M.); (N.V.T.); (I.V.G.); (S.A.K.); (D.B.N.)
| | - Kirill Z. Maisaya
- Federal Research Centre of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia; (A.A.S.); (A.I.K.); (I.E.S.); (K.Z.M.); (N.V.T.); (I.V.G.); (S.A.K.); (D.B.N.)
| | - Galina V. Guseva
- Federal Research Centre of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia; (A.A.S.); (A.I.K.); (I.E.S.); (K.Z.M.); (N.V.T.); (I.V.G.); (S.A.K.); (D.B.N.)
| | - Nikita V. Trusov
- Federal Research Centre of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia; (A.A.S.); (A.I.K.); (I.E.S.); (K.Z.M.); (N.V.T.); (I.V.G.); (S.A.K.); (D.B.N.)
| | | | - Yanina A. Delegan
- Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center “Pushchino Scientific Center for Biological Research of Russian Academy of Sciences”, 142290 Pushchino, Russia; (Y.A.D.); (Y.N.K.)
| | - Yulia N. Kocharovskaya
- Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center “Pushchino Scientific Center for Biological Research of Russian Academy of Sciences”, 142290 Pushchino, Russia; (Y.A.D.); (Y.N.K.)
| | - Alexander G. Bogun
- Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center “Pushchino Scientific Center for Biological Research of Russian Academy of Sciences”, 142290 Pushchino, Russia; (Y.A.D.); (Y.N.K.)
| | - Ivan V. Gmoshinski
- Federal Research Centre of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia; (A.A.S.); (A.I.K.); (I.E.S.); (K.Z.M.); (N.V.T.); (I.V.G.); (S.A.K.); (D.B.N.)
| | - Sergey A. Khotimchenko
- Federal Research Centre of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia; (A.A.S.); (A.I.K.); (I.E.S.); (K.Z.M.); (N.V.T.); (I.V.G.); (S.A.K.); (D.B.N.)
- Department of Operative Surgery and Topographic Anatomy, I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia
| | - Dmitry B. Nikityuk
- Federal Research Centre of Nutrition, Biotechnology and Food Safety, 109240 Moscow, Russia; (A.A.S.); (A.I.K.); (I.E.S.); (K.Z.M.); (N.V.T.); (I.V.G.); (S.A.K.); (D.B.N.)
- Department of Operative Surgery and Topographic Anatomy, I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia
- Department of Ecology and Food Safety, Institute of Ecology, Patrice Lumumba Peoples’ Friendship University of Russia, 117198 Moscow, Russia
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Kebal L, Djebli N, Pokajewicz K, Mostefa N, Wieczorek PP. Antioxidant Activity and Effectiveness of Fig Extract in Counteracting Carbon Tetrachloride-Induced Oxidative Damage in Rats. Molecules 2024; 29:1997. [PMID: 38731494 PMCID: PMC11085187 DOI: 10.3390/molecules29091997] [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: 03/19/2024] [Revised: 04/16/2024] [Accepted: 04/18/2024] [Indexed: 05/13/2024] Open
Abstract
Figs are the edible fruits of the fig tree, Ficus carica L., that have been used for centuries for human consumption and in traditional medicine, to treat skin problems, inflammation, and gastrointestinal disorders. Our previous study investigated the presence of phenolic compounds in aqueous extracts of two Algerian popular fig varieties, azendjar (Az) and taamriouth (Ta), as well as their in vitro antioxidant activity. In this study, we assessed hydroethanolic extracts of these fig varieties. The total phenolic content was measured, along with the phenolic profile. Rutin was determined to be the dominant phenolic compound, followed by vanillic acid, 3,4-dihydroxybenzoic acid, quercetin, 4-hydroxybenzoic acid, rosmarinic acid (in Az only), and cinnamic acid. The antioxidant activity of the extracts was evaluated both in vitro (DPPH and FRAP assays) and in vivo, in rats intoxicated with carbon tetrachloride. In all assays, the fig extract-especially the dark-peeled fig variety azendjar-showed antioxidant potency. The administration of fig extract resulted in a reduction in liver damage, expressed by both different biochemical markers and histopathological study (less degraded liver architecture, reduced fibrosis, and only mild inflammation). A dose-dependent therapeutic effect was observed. The extract from the dark-peeled fig variety, Az, was characterized by a higher phenolic content and a stronger antioxidant activity than the extract from the light-peeled variety-Ta. Our study justifies the use of figs in traditional healing and shows the potential of using fig extracts in natural medicines and functional foods.
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Affiliation(s)
- Leila Kebal
- Laboratory of Pharmacognosy and Api-Phytotherapy, Department of Biology, Faculty of Nature and Life Sciences, University of Mostaganem (UMAB), Mostaganem 2700, Algeria
| | - Noureddine Djebli
- Laboratory of Pharmacognosy and Api-Phytotherapy, Department of Biology, Faculty of Nature and Life Sciences, University of Mostaganem (UMAB), Mostaganem 2700, Algeria
| | - Katarzyna Pokajewicz
- Department of Analytical Chemistry, Faculty of Chemistry and Pharmacy, University of Opole, Pl. Kopernika 11a, 45-040 Opole, Poland
| | - Nadjet Mostefa
- Laboratory of Pharmacognosy and Api-Phytotherapy, Department of Biology, Faculty of Nature and Life Sciences, University of Mostaganem (UMAB), Mostaganem 2700, Algeria
| | - Piotr P. Wieczorek
- Department of Analytical Chemistry, Faculty of Chemistry and Pharmacy, University of Opole, Pl. Kopernika 11a, 45-040 Opole, Poland
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Wakabayashi N, Yagishita Y, Joshi T, Kensler TW. Dual Deletion of Keap1 and Rbpjκ Genes in Liver Leads to Hepatomegaly and Hypercholesterolemia. Int J Mol Sci 2024; 25:4712. [PMID: 38731931 PMCID: PMC11083431 DOI: 10.3390/ijms25094712] [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: 04/11/2024] [Revised: 04/21/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
The hepatic deletion of Rbpjκ (RbpjF/F::AlbCre) in the mouse leads to exhibition of the Alagille syndrome phenotype during early postnatal liver development with hyperlipidemia and cholestasis due to attenuated disruption of NOTCH signaling. Given the roles of NRF2 signaling in the regulation of lipid metabolism and bile ductal formation, it was anticipated that these symptoms could be alleviated by enhancing NRF2 signaling in the RbpjF/F::AlbCre mouse by hepatic deletion of Keap1 in compound Keap1F/F::RbpjF/F::AlbCre mice. Unexpectedly, these mice developed higher hepatic and plasma cholesterol levels with more severe cholestatic liver damage during the pre-weaning period than in the RbpjF/F::AlbCre mice. In addition, hypercholesterolemia and hepatic damage were sustained throughout the growth period unlike in the RbpjF/F::AlbCre mouse. These enhanced abnormalities in lipid metabolism appear to be due to NRF2-dependent changes in gene expression related to cholesterol synthetic and subsequent bile acid production pathways. Notably, the hepatic expression of Cyp1A7 and Abcb11 genes involved in bile acid homeostasis was significantly reduced in Keap1F/F::RbpjF/F::AlbCre compared to RbpjF/F::AlbCre mice. The accumulation of liver cholesterol and the weakened capacity for bile excretion during the 3 pre-weaning weeks in the Keap1F/F::RbpjF/F::AlbCre mice may aggravate hepatocellular damage level caused by both excessive cholesterol and residual bile acid toxicity in hepatocytes. These results indicate that a tuned balance of NOTCH and NRF2 signaling is of biological importance for early liver development after birth.
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Affiliation(s)
- Nobunao Wakabayashi
- Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; (N.W.); (T.J.)
| | - Yoko Yagishita
- Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; (N.W.); (T.J.)
- Division of Endocrinology, Columbia University, New York, NY 10032, USA
| | - Tanvi Joshi
- Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; (N.W.); (T.J.)
| | - Thomas W. Kensler
- Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; (N.W.); (T.J.)
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Muscatello LV, Massari F, Roccabianca P, Sarli G, Benazzi C, Bianchi ML. Hepatic Epithelioid Hemangioendothelioma in a Dog. Animals (Basel) 2024; 14:1302. [PMID: 38731306 PMCID: PMC11083527 DOI: 10.3390/ani14091302] [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: 03/25/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
A 5-year-old spayed female Breton dog was referred for a thyroid nodule. A total body CT scan evidenced multifocal hepatic nodules. Cytological liver samples were hemodiluted and non-diagnostic. Following a thyroidectomy, the histology was consistent with a follicular-compact thyroid carcinoma. On laparoscopy, most hepatic lobes had multifocal dark-red nodules that were biopsied for histology. Microscopically, the hepatic parenchyma in the nodules was substituted by blood channels lined by bland spindle cells but adjacent to epithelioid neoplastic cells, single or in clusters, embedded in a moderate amount of edematous collagen matrix. These cells had optically empty cytoplasmic space, occasionally containing erythrocytes (microlumina). Spindle and epithelioid cells expressed membranous-to-cytoplasmic CD31 and FVIII-RA consistent with endothelial origin. Based on morphology and immunolabelling, a hemangioendothelioma with epithelioid differentiation was diagnosed. Lesions in the liver were initially stable, showing progression with time. The dog was alive with no systemic clinical signs 36 months after laparoscopy.
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Affiliation(s)
- Luisa Vera Muscatello
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra, 50, Ozzano dell’Emilia, 40064 Bologna, Italy; (G.S.); (C.B.)
| | - Federico Massari
- DOCVET Clinica Veterinaria Nervianese, Via Rho 2, 20014 Nerviano, Italy; (F.M.); (M.L.B.)
| | - Paola Roccabianca
- Department of Veterinary Medicine, University of Milano, via dell’ Università 6, 26900 Lodi, Italy;
| | - Giuseppe Sarli
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra, 50, Ozzano dell’Emilia, 40064 Bologna, Italy; (G.S.); (C.B.)
| | - Cinzia Benazzi
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra, 50, Ozzano dell’Emilia, 40064 Bologna, Italy; (G.S.); (C.B.)
| | - Marco Luigi Bianchi
- DOCVET Clinica Veterinaria Nervianese, Via Rho 2, 20014 Nerviano, Italy; (F.M.); (M.L.B.)
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Chaouch E, Aydin S, Cristina Anca D. Unusually Hypervascularized Liver Lesion. J Belg Soc Radiol 2024; 108:45. [PMID: 38680725 PMCID: PMC11049680 DOI: 10.5334/jbsr.3576] [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: 03/12/2024] [Accepted: 04/07/2024] [Indexed: 05/01/2024] Open
Abstract
Teaching point: Microcystic lymphangioma is a rare but benign lesion that should be differentiated from a neoplasm.
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