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1.
J Transl Med ; 22(1): 456, 2024 May 14.
Article in English | MEDLINE | ID: mdl-38745252

ABSTRACT

BACKGROUND: Changes in plasma protein glycosylation are known to functionally affect proteins and to associate with liver diseases, including cirrhosis and hepatocellular carcinoma. Autoimmune hepatitis (AIH) is a liver disease characterized by liver inflammation and raised serum levels of IgG, and is difficult to distinguish from other liver diseases. The aim of this study was to examine plasma and IgG-specific N-glycosylation in AIH and compare it with healthy controls and other liver diseases. METHODS: In this cross-sectional cohort study, total plasma N-glycosylation and IgG Fc glycosylation analysis was performed by mass spectrometry for 66 AIH patients, 60 age- and sex-matched healthy controls, 31 primary biliary cholangitis patients, 10 primary sclerosing cholangitis patients, 30 non-alcoholic fatty liver disease patients and 74 patients with viral or alcoholic hepatitis. A total of 121 glycans were quantified per individual. Associations between glycosylation traits and AIH were investigated as compared to healthy controls and other liver diseases. RESULTS: Glycan traits bisection (OR: 3.78 [1.88-9.35], p-value: 5.88 × 10- 3), tetraantennary sialylation per galactose (A4GS) (OR: 2.88 [1.75-5.16], p-value: 1.63 × 10- 3), IgG1 galactosylation (OR: 0.35 [0.2-0.58], p-value: 3.47 × 10- 5) and hybrid type glycans (OR: 2.73 [1.67-4.89], p-value: 2.31 × 10- 3) were found as discriminators between AIH and healthy controls. High A4GS differentiated AIH from other liver diseases, while bisection associated with cirrhosis severity. CONCLUSIONS: Compared to other liver diseases, AIH shows distinctively high A4GS levels in plasma, with potential implications on glycoprotein function and clearance. Plasma-derived glycosylation has potential to be used as a diagnostic marker for AIH in the future. This may alleviate the need for a liver biopsy at diagnosis. Glycosidic changes should be investigated further in longitudinal studies and may be used for diagnostic and monitoring purposes in the future.


Subject(s)
Hepatitis, Autoimmune , Polysaccharides , Humans , Hepatitis, Autoimmune/blood , Female , Male , Polysaccharides/blood , Polysaccharides/metabolism , Middle Aged , Glycosylation , Case-Control Studies , Immunoglobulin G/blood , Liver Diseases/blood , Adult , Cross-Sectional Studies , Aged
2.
Clin Lab ; 70(5)2024 May 01.
Article in English | MEDLINE | ID: mdl-38747922

ABSTRACT

BACKGROUND: The goal was to explore the cognition of diagnosis and treatment level of IgG4-related diseases mainly involving lymph nodes. METHODS: The clinical manifestations, laboratory indicators, histopathology, and therapeutic effects of a patient with IgG4-RD suspected of lymphoma were analyzed and the relevant literature was reviewed. RESULTS: Lymph node biopsy showed reactive hyperplasia of lymph node tissue. The liver biochemical indexes were abnormal and the bone marrow smear showed atypical lymphocytes. Lymph node section: IgG4+ cells > 100/HPF (IgG4/IgG > 40%). The serum IgG4 level was 17,200 mg/L, and the diagnosis was IgG4-RD. Oral glucocorticoids took effect after 2 weeks, and no significant enlargement of lymph nodes was observed. CONCLUSIONS: For the diagnosis of IgG4-RD, at present, histopathology is still the gold standard, but a single result cannot diagnose the disease. Comprehensive judgment should be made by combining clinical symptoms, serum IgG4 level and imaging results to prevent misdiagnosis and missed diagnosis, and to avoid over-diagnosis. Short-term hormonal diagnostic therapy may be used in highly suspected patients who cannot be diagnosed. Once diagnosed, standardized medication, adhere to follow-up, regular review, to prevent recurrence and adverse drug reactions.


Subject(s)
Immunoglobulin G4-Related Disease , Immunoglobulin G , Liver Diseases , Humans , Immunoglobulin G/blood , Immunoglobulin G4-Related Disease/diagnosis , Immunoglobulin G4-Related Disease/drug therapy , Immunoglobulin G4-Related Disease/blood , Liver Diseases/diagnosis , Liver Diseases/immunology , Liver Diseases/blood , Glucocorticoids/therapeutic use , Lymph Nodes/pathology , Male , Middle Aged
3.
Nat Commun ; 15(1): 3707, 2024 May 02.
Article in English | MEDLINE | ID: mdl-38697980

ABSTRACT

Nuclear magnetic resonance (NMR)-based plasma fatty acids are objective biomarkers of many diseases. Herein, we aim to explore the associations of NMR-based plasma fatty acids with the risk of hepatocellular carcinoma (HCC) and chronic liver disease (CLD) mortality in 252,398 UK Biobank participants. Here we show plasma levels of n-3 poly-unsaturated fatty acids (PUFA) and n-6 PUFA are negatively associated with the risk of incident HCC [HRQ4vsQ1: 0.48 (95% CI: 0.33-0.69) and 0.48 (95% CI: 0.28-0.81), respectively] and CLD mortality [HRQ4vsQ1: 0.21 (95% CI: 0.13-0.33) and 0.15 (95% CI: 0.08-0.30), respectively], whereas plasma levels of saturated fatty acids are positively associated with these outcomes [HRQ4vsQ1: 3.55 (95% CI: 2.25-5.61) for HCC and 6.34 (95% CI: 3.68-10.92) for CLD mortality]. Furthermore, fibrosis stage significantly modifies the associations between PUFA and CLD mortality. This study contributes to the limited prospective evidence on the associations between plasma-specific fatty acids and end-stage liver outcomes.


Subject(s)
Biological Specimen Banks , Carcinoma, Hepatocellular , Fatty Acids , Liver Neoplasms , Humans , Carcinoma, Hepatocellular/mortality , Carcinoma, Hepatocellular/blood , Liver Neoplasms/mortality , Liver Neoplasms/blood , Male , United Kingdom/epidemiology , Female , Middle Aged , Aged , Fatty Acids/blood , Risk Factors , Liver Diseases/blood , Liver Diseases/mortality , Adult , Chronic Disease , Fatty Acids, Omega-6/blood , Liver Cirrhosis/blood , Liver Cirrhosis/mortality , Fatty Acids, Omega-3/blood , UK Biobank
5.
Adv Kidney Dis Health ; 31(2): 139-146, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38649218

ABSTRACT

Hyponatremia is common in patients with liver disease and is associated with increased mortality, morbidity, and a reduced quality of life. In liver transplantation, the inclusion of hyponatremia in organ allocation scores has reduced waitlist mortality. Portal hypertension and the resulting lowering of the effective arterial blood volume are important pathogenetic factors, but in most patients with liver disease, hyponatremia is multifactorial. Treatment requires a multifaceted approach that tries to reduce electrolyte-free water intake, restore urinary dilution, and increase nonelectrolyte solute excretion. Albumin therapy for hyponatremia is a peculiarity of advanced liver disease. Its use appears to be increasing, while the vaptans are currently only given in selected cases. Osmotic demyelination is a special concern in patients with liver disease. Serial checks of serum sodium concentrations and urine volume monitoring are mandatory.


Subject(s)
Hyponatremia , Liver Diseases , Hyponatremia/therapy , Hyponatremia/etiology , Hyponatremia/diagnosis , Humans , Liver Diseases/complications , Liver Diseases/blood , Liver Transplantation , Sodium/blood , Sodium/urine , Hypertension, Portal/therapy , Hypertension, Portal/complications , Albumins/metabolism , Albumins/therapeutic use
6.
Aliment Pharmacol Ther ; 59(11): 1376-1386, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38482706

ABSTRACT

BACKGROUND AND AIMS: The prognostic performance of von Willebrand factor (VWF) may vary across clinical stages of advanced chronic liver disease (ACLD). Therefore, we investigated the evolution of VWF and other biomarkers throughout the full ACLD spectrum and evaluated their stage-specific prognostic utility. METHODS: We retrospectively included Viennese ACLD patients with available information on hepatic venous pressure gradient (HVPG), C-reactive protein (CRP)/VWF levels and outcomes. ACLD stages were defined according to D'Amico et al. We included an external validation cohort from Padua. RESULTS: We observed gradual increases in VWF throughout ACLD stages. In contrast, HVPG levelled off in decompensated ACLD (dACLD), whereas MELD showed only minor changes in the early stages and CRP did not increase until stage 3. VWF was associated with hepatic decompensation/liver-related death in compensated ACLD (cACLD) in a fully adjusted model, while it was not independently predictive of ACLF/liver-related death in dACLD. After backward selection, HVPG/CRP/VWF remained the main predictors of hepatic decompensation/liver-related death in cACLD. Notably, the performance of the non-invasive CRP/VWF-based model was comparable to invasive HVPG-based models (C-index:0.765 ± 0.034 vs. 0.756 ± 0.040). The discriminative ability of the CRP/VWF-based model was confirmed in an external validation cohort using another VWF assay which yielded systematically lower values. CONCLUSION: VWF is the only biomarker that gradually increases across all ACLD stages. It is of particular prognostic value in cACLD, where a CRP/VWF-based model is equivalent to an invasive HVPG-based model. Systematic differences in VWF underline the importance of interlaboratory surveys. Moreover, our findings reinforce the notion that, already in cACLD, inflammation is a key disease-driving mechanism.


Subject(s)
Biomarkers , C-Reactive Protein , von Willebrand Factor , Humans , von Willebrand Factor/metabolism , von Willebrand Factor/analysis , Male , Female , Middle Aged , Retrospective Studies , Biomarkers/blood , C-Reactive Protein/analysis , Prognosis , Aged , Liver Diseases/blood , Liver Diseases/mortality , Chronic Disease , Adult , Severity of Illness Index , Predictive Value of Tests
7.
J Gastroenterol ; 59(6): 483-493, 2024 06.
Article in English | MEDLINE | ID: mdl-38530472

ABSTRACT

BACKGROUND: The branched-chain amino acids (BCAAs) to tyrosine (Tyr) ratio (BTR) test is used to evaluate the progression of chronic liver disease (CLD). However, the differences across sex, age, body mass index (BMI) and etiologies are still unclear. METHODS: We retrospectively reviewed data from 2,529 CLD cases with free amino acids (FAAs) in peripheral blood from four hospitals and 16,421 general adults with FAAs data from a biobank database. In total, 1,326 patients with CLD (covering seven etiologies) and 8,086 healthy controls (HCs) were analyzed after exclusion criteria. We investigated the change of BTR in HCs by sex, age and BMI and then compared these to patients divided by modified ALBI (mALBI) grade after propensity score matching. RESULTS: BTR is significantly higher in males than females regardless of age or BMI and decreases with aging in HCs. In 20 types of FAAs, 7 FAAs including BCAAs were significantly decreased, and 11 FAAs including Tyr were significantly increased by mALBI grade in total CLD. The decreasing timings of BTR were at mALBI grade 2b in all CLD etiologies compared to HCs, however in chronic hepatitis C (CHC), chronic hepatitis B (CHB) and alcoholic liver disease (ALD), BTR started to decrease at 2a. There was a positive correlation between BCAAs and albumin among parameters in BTR and mALBI. The correlation coefficients in PBC, ALD and MASLD were higher than those of other etiologies. CONCLUSIONS: BTR varies by sex and age even among healthy adults, and decreasing process and timing of BTR during disease progression is different among CLD etiologies.


Subject(s)
Amino Acids, Branched-Chain , Disease Progression , Liver Diseases , Tyrosine , Humans , Male , Female , Amino Acids, Branched-Chain/blood , Middle Aged , Retrospective Studies , Adult , Aged , Tyrosine/blood , Liver Diseases/etiology , Liver Diseases/blood , Sex Factors , Body Mass Index , Chronic Disease , Age Factors , Young Adult , Case-Control Studies , Liver Diseases, Alcoholic/complications , Liver Diseases, Alcoholic/blood , Biomarkers/blood
8.
Metab Syndr Relat Disord ; 22(4): 251-262, 2024 May.
Article in English | MEDLINE | ID: mdl-38377607

ABSTRACT

Various studies have reported the association between cardiac markers and hepatic disorders. The main objective of this review article was to elucidate the significance of important cardiac indicators such as ischemia-modified albumin, cardiac troponin, cardiac natriuretic peptides, creatine kinase, creatine kinase-MB, lactate dehydrogenase, heart-type fatty acid-binding protein, osteopontin, soluble suppression of tumorigenicity 2, C-reactive protein, and lipoprotein(a) in the development of hepatic disorders. In addition, it highlighted recent notable discoveries and accomplishments in this field and identified areas requiring further investigation, ongoing discussions, and potential avenues for future research. Early identification and control of these cardiac markers might be helpful to control the prevalence of hepatic disorders associated with cardiovascular diseases.


Subject(s)
Biomarkers , Liver Diseases , Humans , Biomarkers/blood , Biomarkers/metabolism , Liver Diseases/blood , Liver Diseases/metabolism , Liver Diseases/diagnosis , Cardiovascular Diseases/blood , Cardiovascular Diseases/diagnosis , Cardiovascular Diseases/etiology , Cardiovascular Diseases/metabolism , C-Reactive Protein/metabolism , C-Reactive Protein/analysis , Creatine Kinase/blood , Creatine Kinase/metabolism
9.
Postgrad Med ; 136(2): 120-130, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38362605

ABSTRACT

Plasma is overused as a blood product worldwide; however, data supporting appropriate use of plasma is scant. Its most common utilization is for treatment of coagulopathy in actively bleeding patients; it is also used for coagulation optimization prior to procedures with specific coagulation profile targets. A baseline literature review in PUBMED and Google Scholar was done (1 January 2000 to 1 June 2023), utilizing the following search terms: plasma, fresh frozen plasma, lyophilized plasma, indications, massive transfusion protocol, liver disease, warfarin reversal, cardiothoracic surgery, INR < 2. An initial review of the titles and abstracts excluded all articles that were not focused on transfusional medicine. Additional references were obtained from citations within the retrieved articles. This narrative review discusses the main indications for appropriate plasma use, mainly coagulation factor replacement, major hemorrhage protocol, coagulopathy in liver disease, bleeding in the setting of vitamin K antagonists, among others. The correlation between concentration of coagulation factors and INR, as well as the proper plasma dosing with its volume being weight-based, is also discussed. A high value approach to plasma utilization is supported with a review of the clinical situations where plasma is overutilized or unnecessary. Finally, a discussion of novel plasma products is presented for enhanced awareness.


Subject(s)
Blood Coagulation Disorders , Plasma , Humans , Blood Coagulation Disorders/therapy , Blood Coagulation Disorders/etiology , Hemorrhage/therapy , International Normalized Ratio , Liver Diseases/therapy , Liver Diseases/blood , Blood Coagulation Factors , Blood Component Transfusion/methods
10.
Arab J Gastroenterol ; 25(2): 170-175, 2024 May.
Article in English | MEDLINE | ID: mdl-38378355

ABSTRACT

BACKGROUND AND STUDY AIMS: Liver dysfunction is a common manifestation of the COVID-19 infection. We aimed to study transaminase abnormalities through different waves of COVID-19 and their relations to disease severity or mortality. PATIENTS AND METHODS: A retrospective study included 521 Egyptian patients diagnosed with COVID-19. Data was retrieved from the medical records of patients who were admitted from April 2020 to October 2021 in Kasr Al-Ainy Hospitals, Cairo University, with categorization according to disease severity in correspondence to the four waves. RESULTS: The median age was lower in the first wave compared to other waves, with male predominance across all waves. The most commonly encountered comorbidity overall was hypertension, followed by diabetes mellitus. White blood cells, ferritin, and interleukin-6 showed the highest median values in the second wave, with significantly higher median C-reactive protein on day 1 in the first wave. Forty percent of the patients showed elevated hepatic transaminases on admission in four waves, with no statistically significant difference between waves. On day 5, around half of the patients had elevated transaminases, with no significant difference between waves. Most CT findings were of moderate severity. Clinical severity was higher in the second wave. It was observed that the higher the disease severity, the greater the proportion of patients with elevated hepatic transaminases. The mortality rate was markedly high in cases who had elevated ALT or AST on day 5. The association between elevated enzymes on admission and mortality was seen in the first wave only, with a fatality rate of 22.5% in cases with increased baseline ALT and AST versus 5% in those with normal baseline enzymes. CONCLUSION: There was no significant difference in transaminases between the four waves. Elevated transaminases were positively associated with increased mortality and severity, reflecting their prognostic value.


Subject(s)
COVID-19 , Liver Diseases , SARS-CoV-2 , Severity of Illness Index , Humans , COVID-19/complications , COVID-19/mortality , COVID-19/epidemiology , Male , Female , Retrospective Studies , Adult , Middle Aged , Liver Diseases/etiology , Liver Diseases/epidemiology , Liver Diseases/blood , Egypt/epidemiology , Alanine Transaminase/blood , Aspartate Aminotransferases/blood , Comorbidity , Aged
12.
Nat Commun ; 13(1): 6816, 2022 11 25.
Article in English | MEDLINE | ID: mdl-36433951

ABSTRACT

Acetaminophen overdose is one of the leading causes of acute liver failure and liver transplantation in the Western world. Magnesium is essential in several cellular processess. The Cyclin M family is involved in magnesium transport across cell membranes. Herein, we identify that among all magnesium transporters, only Cyclin M4 expression is upregulated in the liver of patients with acetaminophen overdose, with disturbances in magnesium serum levels. In the liver, acetaminophen interferes with the mitochondrial magnesium reservoir via Cyclin M4, affecting ATP production and reactive oxygen species generation, further boosting endoplasmic reticulum stress. Importantly, Cyclin M4 mutant T495I, which impairs magnesium flux, shows no effect. Finally, an accumulation of Cyclin M4 in endoplasmic reticulum is shown under hepatoxicity. Based on our studies in mice, silencing hepatic Cyclin M4 within the window of 6 to 24 h following acetaminophen overdose ingestion may represent a therapeutic target for acetaminophen overdose induced liver injury.


Subject(s)
Acetaminophen , Cation Transport Proteins , Chemical and Drug Induced Liver Injury , Liver Diseases , Magnesium , Animals , Mice , Acetaminophen/toxicity , Chemical and Drug Induced Liver Injury/blood , Chemical and Drug Induced Liver Injury/genetics , Chemical and Drug Induced Liver Injury/prevention & control , Cyclins/genetics , Cyclins/metabolism , Liver Diseases/blood , Liver Diseases/genetics , Liver Diseases/prevention & control , Magnesium/blood , Magnesium/therapeutic use , Cation Transport Proteins/genetics , Cation Transport Proteins/metabolism
13.
Semin Thromb Hemost ; 48(5): 596-606, 2022 Jul.
Article in English | MEDLINE | ID: mdl-35135033

ABSTRACT

Patients with liver diseases are in a rebalanced state of hemostasis, due to simultaneous decline in pro- and anticoagulant factors. This balance seems to remain even in the sickest patients, but is less stable and might destabilize when patients develop disease complications. Patients with acute decompensation of cirrhosis, acute-on-chronic liver failure, or acute liver failure often develop complications associated with changes in the hemostatic system, such as systemic inflammation. Systemic inflammation causes hemostatic alterations by adhesion and aggregation of platelets, release of von Willebrand factor (VWF), enhanced expression of tissue factor, inhibition of natural anticoagulant pathways, and inhibition of fibrinolysis. Laboratory tests of hemostasis in acutely-ill liver patients may indicate a hypocoagulable state (decreased platelet count, prolongations in prothrombin time and activated partial thromboplastin time, decreased fibrinogen levels) due to decreased synthetic liver capacity or consumption, or a hypercoagulable state (increased VWF levels, hypofibrinolysis in global tests). Whether these changes are clinically relevant and should be corrected with antithrombotic drugs or blood products is incompletely understood. Inflammation and activation of coagulation may cause local ischemia, progression of liver disease, and multiorgan failure. Anti-inflammatory treatment in acutely-ill liver patients may be of potential interest to prevent thrombotic or bleeding complications and halt progression of liver disease.


Subject(s)
Hemostasis , Liver Diseases , Acute Disease , Humans , Inflammation , Liver Diseases/blood , von Willebrand Factor
14.
Int J Mol Sci ; 23(3)2022 Jan 19.
Article in English | MEDLINE | ID: mdl-35162992

ABSTRACT

Chronic liver diseases are commonly associated with dysregulated cholesterol metabolism. Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a serine protease of the proprotein convertase family that is mainly synthetized and secreted by the liver, and represents one of the key regulators of circulating low-density lipoprotein (LDL) cholesterol levels. Its ability to bind and induce LDL-receptor degradation, in particular in the liver, increases circulating LDL-cholesterol levels in the blood. Hence, inhibition of PCSK9 has become a very potent tool for the treatment of hypercholesterolemia. Besides PCSK9 limiting entry of LDL-derived cholesterol, affecting multiple cholesterol-related functions in cells, more recent studies have associated PCSK9 with various other cellular processes, including inflammation, fatty acid metabolism, cancerogenesis and visceral adiposity. It is increasingly becoming evident that additional roles for PCSK9 beyond cholesterol homeostasis are crucial for liver physiology in health and disease, often contributing to pathophysiology. This review will summarize studies analyzing circulating and hepatic PCSK9 levels in patients with chronic liver diseases. The factors affecting PCSK9 levels in the circulation and in hepatocytes, clinically relevant studies and the pathophysiological role of PCSK9 in chronic liver injury are discussed.


Subject(s)
Liver Diseases/metabolism , Proprotein Convertase 9/blood , Proprotein Convertase 9/metabolism , Cholesterol, LDL/blood , Gene Expression Regulation , Homeostasis , Humans , Liver/metabolism , Liver Diseases/blood , Receptors, LDL/metabolism
15.
Sci Rep ; 12(1): 1711, 2022 02 02.
Article in English | MEDLINE | ID: mdl-35110625

ABSTRACT

Dyslipidemia, a major contributor to cardiovascular diseases, is rapidly increasing in Asian countries including Bangladesh. In addition to the cardiovascular system, abnormal lipid levels are also known to cause complications in renal and hepatic systems. The data regarding dyslipidemia and its relationship with liver enzymes are scarce for the Bangladeshi population. Therefore, this study was conducted to estimate the prevalence of dyslipidemia and determine the relationship between lipid profile and liver enzymes in Bangladeshi adults. A total of 405 participants (318 males and 87 females) were enrolled in the study. Serum levels of TG, TC, LDL, HDL and liver enzymes including ALT, AST, GGT and ALP were analyzed using standard methods. Dyslipidemia and liver function tests abnormalities were defined according to the international standard guidelines. The association between elevated lipid profile markers and liver enzyme abnormalities was assessed by logistic regression analysis. Overall, the prevalence of elevated TG, TC, LDL and low HDL were 30.9%, 23.7%, 26.2% and 78.8%, respectively. On the other hand, the prevalence of elevated liver enzymes ALT, AST, GGT and ALP were 18.8%, 21.6%, 12.9% and 21.9%, respectively. Dyslipidemia and liver enzyme abnormalities were higher in diabetic and hypertensive participants than in the healthy participants. About 61% of participants with dyslipidemia had at least one or more elevated liver enzymes. In regression analysis, an independent association was observed between serum GGT and all lipid components. In conclusion, a high prevalence of dyslipidemia and liver enzyme abnormalities were observed among the study participants. Of the four liver enzymes, the serum levels of GGT showed an independent association with all lipid components. Moreover, this study indicates that subjects with dyslipidemia often have a higher chance of having liver diseases than subjects with no dyslipidemia. However, large-scale prospective studies are needed to understand the underlying mechanisms of lipid-induced hepatic dysfunction in the Bangladeshi population.


Subject(s)
Dyslipidemias/blood , Enzymes/blood , Lipids/blood , Liver Diseases/blood , Adult , Alanine Transaminase/blood , Alkaline Phosphatase/blood , Aspartate Aminotransferases/blood , Bangladesh/epidemiology , Biomarkers/blood , Clinical Enzyme Tests , Cross-Sectional Studies , Dyslipidemias/diagnosis , Dyslipidemias/epidemiology , Female , Humans , Liver Diseases/diagnosis , Liver Diseases/epidemiology , Liver Function Tests , Male , Middle Aged , Prevalence , Risk Assessment , Risk Factors , Up-Regulation , gamma-Glutamyltransferase/blood
16.
Article in English | MEDLINE | ID: mdl-35066246

ABSTRACT

Contezolid is a novel oxazolidinone antibiotic with good antibacterial activity against gram-positive bacteria including methicillin-resistant Staphylococcus aureus. For the purpose to further characterize the pharmacokinetics of contezolid and its major metabolite M2, accurate and rapid ultra-performance liquid chromatography-tandem mass spectrometric assays (UPLC-MS/MS) were developed and validated for simultaneous quantification of contezolid and M2 in human plasma and urine. The plasma samples were pretreated by liquid-liquid extraction. The automated solid phase extraction method was used to preprocess urine samples. ACQUITY UPLC® BEH C8 (2.1 mm × 100 mm, 1.7 µm) column was used to separate the analytes with a gradient mobile phase of acetonitrile and water at a flow rate of 0.4 mL/min. The calibration curves showed good linearity over the concentration ranges of 0.0100-5.00 µg/mL for contezolid in plasma and urine, 0.00200-1.00 µg/mL in plasma and 0.0200-10.0 µg/mL in urine for M2, respectively. For both plasma and urine assays, the intra- and inter-batch accuracy and precision were within 15% for all quality control levels, including the lower limit of quantitation. The methods were fully validated and successfully applied to a pharmacokinetic study of contezolid tablets in subjects with moderate hepatic impairment.


Subject(s)
Anti-Bacterial Agents/blood , Anti-Bacterial Agents/urine , Chromatography, High Pressure Liquid/methods , Liver Diseases/drug therapy , Oxazolidinones/blood , Oxazolidinones/urine , Pyridones/blood , Pyridones/urine , Tandem Mass Spectrometry/methods , Administration, Oral , Anti-Bacterial Agents/administration & dosage , Anti-Bacterial Agents/pharmacokinetics , Humans , Limit of Detection , Liquid-Liquid Extraction , Liver Diseases/blood , Liver Diseases/urine , Oxazolidinones/administration & dosage , Oxazolidinones/pharmacokinetics , Plasma/chemistry , Pyridones/administration & dosage , Pyridones/pharmacokinetics , Urine/chemistry
17.
Toxicol Appl Pharmacol ; 438: 115846, 2022 03 01.
Article in English | MEDLINE | ID: mdl-34974053

ABSTRACT

BMS-986020, BMS-986234 and BMS-986278, are three lysophosphatidic acid receptor 1 (LPA1) antagonists that were or are being investigated for treatment of idiopathic pulmonary fibrosis (IPF). Hepatobiliary toxicity (elevated serum AST, ALT, and ALP, plasma bile acids [BAs], and cholecystitis) was observed in a Phase 2 clinical trial with BMS-986020, and development was discontinued. In dogs and rats, the species used for the pivotal toxicology studies, there was no evidence of hepatobiliary toxicity in the dog while findings in the rat were limited to increased plasma BAs levels (6.1× control), ALT (2.9×) and bilirubin (3.4×) with no histopathologic correlates. Since neither rats nor dogs predicted clinical toxicity, follow-up studies in cynomolgus monkeys revealed hepatobiliary toxicity that included increased ALT (2.0× control) and GLDH (4.9×), bile duct hyperplasia, cholangitis, cholestasis, and cholecystitis at clinically relevant BMS-986020 exposures with no changes in plasma or liver BAs. This confirmed monkey as a relevant species for identifying hepatobiliary toxicity with BMS-986020. In order to assess whether the toxicity was compound-specific or related to LPA1 antagonism, two structurally distinct LPA1 antagonists (BMS-986234 and BMS-986278), were evaluated in rat and monkey. There were no clinical or anatomic pathology changes indicative of hepatobiliary toxicity. Mixed effects on plasma BAs in both rat and monkey has made this biomarker not a useful predictor of the hepatobiliary toxicity. In conclusion, the nonclinical data indicate the hepatobiliary toxicity observed clinically and in monkeys administered BMS-986020 is compound specific and not mediated via antagonism of LPA1.


Subject(s)
Chemical and Drug Induced Liver Injury/metabolism , Digestive System Diseases/chemically induced , Liver/drug effects , Receptors, Lysophosphatidic Acid/antagonists & inhibitors , Animals , Bile Acids and Salts/blood , Bilirubin/blood , Chemical and Drug Induced Liver Injury/blood , Digestive System Diseases/blood , Digestive System Diseases/metabolism , Dogs , Female , Haplorhini , Liver/metabolism , Liver Diseases/blood , Liver Diseases/metabolism , Male , Rats , Rats, Sprague-Dawley
18.
Mol Biol Rep ; 49(1): 341-349, 2022 Jan.
Article in English | MEDLINE | ID: mdl-34727292

ABSTRACT

BACKGROUND: Hepatic ischemia-reperfusion injury (I/R) is an important factor affecting the prognosis of patients undergoing liver surgery. This study aimed to explore the value of intravenous immunoglobulin (IVIG) in hepatic I/R and its mechanism in a rat model. MATERIALS AND METHODS: Forty eight adult male Sprague-Dawley (SD) rats were divided into six groups randomly: (1-2) treated with normal saline (NS) without ischemia or reperfusion; (3-4) treated with NS + 30 min ischemia; (5-6) treated with IVIG + 30 min ischemia. Rats of group 1/3/5 were euthanized at 12 h after operation (sham + NS + 12 h, I/R + NS + 12 h, I/R + IVIG + 12 h group) while group 2/4/6 were euthanized at 24 h (sham + NS + 24 h, I/R + NS + 24 h, I/R + IVIG + 24 h group). Interleukin 10 (IL-10), interleukin 6 (IL-6), tumor necrosis factor-alpha (TNF-alpha) were quantified as well as serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT). Hepatic pathological changes were observed while nuclear factor kappa B p65 (NF-κB p65), Inhibitory Subunit of NF Kappa B Alpha (IKB-alpha) and cleaved caspase-3 were detected. CONCLUSION: ALT, AST, IL-6, TNF-alpha, NF-κB p65 and cleaved caspase-3 were increased by I/R whereas IL-10 and IKB-alpha were decreased. However, IVIG pretreatment reduced ALT, AST, IL-6, TNF-alpha, NF-κB p65 and cleaved caspase-3, but increased IL-10 and IKB-alpha. IVIG treatment attenuates the infiltration of inflammatory cell and cell apoptosis which were observed in I/R groups. IVIG may alleviate hepatic I/R in rats by inhibiting the classical NF-κB signaling pathway, reducing IL-6, TNF-alpha, promoting IL-10, and inhibiting cell apoptosis.


Subject(s)
Anti-Infective Agents/administration & dosage , Immunoglobulins, Intravenous/administration & dosage , Liver Diseases/drug therapy , Reperfusion Injury/drug therapy , Signal Transduction/drug effects , Alanine Transaminase/blood , Animals , Anti-Infective Agents/pharmacology , Aspartate Aminotransferases/blood , Gene Expression Regulation/drug effects , Immunoglobulins, Intravenous/pharmacology , Interleukin-10/blood , Interleukin-6/blood , Liver Diseases/blood , Liver Diseases/etiology , Liver Diseases/immunology , Male , Rats , Rats, Sprague-Dawley , Reperfusion Injury/blood , Reperfusion Injury/etiology , Reperfusion Injury/immunology , Treatment Outcome , Tumor Necrosis Factor-alpha/blood
19.
Dig Liver Dis ; 54(1): 111-117, 2022 Jan.
Article in English | MEDLINE | ID: mdl-34305015

ABSTRACT

BACKGROUND: Cystic fibrosis (CF) and CF-related liver disease can lead to disturbances in bile acid metabolism. AIM: This study determined serum bile acid concentrations in CF to define their usefulness in liver disease assessment. METHODS: Primary, secondary and conjugated bile acid levels were measured in three CF groups (25 patients each) exhibiting: liver cirrhosis, other liver disease, no liver disease, and in 25 healthy subjects (HS). RESULTS: Bile acid levels were higher in CF patients than in HS, except for glycodeoxycholic acid (GDCA). However, bile acid concentrations did not differ between patients with cirrhosis and other liver involvement. GDCA and deoxycholic acid (DCA) differentiated CF patients with non-cirrhotic liver disease from those without liver disease (GDCA-AUC: 0.924, 95%CI 0.822-1.000, p<0.001; DCA-AUC: 0.867, 95%CI: 0.731-1.000, p<0.001). Principal component analysis revealed that in CF liver disease was related to GDCA, GGTP activity, severe genotype and pancreatic insufficiency. CONCLUSIONS: A CF-specific bile acid profile was defined and shown to relate to liver disease. GDCA differentiates patients with non-cirrhotic liver involvement from those with no detectable liver disease. Hence, GDCA is a candidate for validation as a biomarker of non-cirrhotic progression of liver disease in CF.


Subject(s)
Bile Acids and Salts/blood , Cystic Fibrosis/blood , Glycodeoxycholic Acid/blood , Liver Cirrhosis/diagnosis , Liver Diseases/diagnosis , Adolescent , Adult , Biomarkers/blood , Case-Control Studies , Cystic Fibrosis/complications , Female , Humans , Liver Cirrhosis/blood , Liver Cirrhosis/etiology , Liver Diseases/blood , Liver Diseases/etiology , Male , Young Adult
20.
Postgrad Med J ; 98(1156): 91-97, 2022 Feb.
Article in English | MEDLINE | ID: mdl-33184141

ABSTRACT

BACKGROUND: Characteristics of laboratory findings of COVID-19 patients are of great significance for diagnosis and treatment. Studies that have analysed the variations in hepatic profile in correlation with the inflammatory markers in SARS-CoV-2 are limited. METHODS: We retrospectively analysed liver function tests and inflammatory markers of 170 admitted patients with confirmed COVID-19 in the tertiary care centre, Post Graduate Institute of Medical Education and Research (PGIMER), India, using Roche Cobas Autoanalyzer. RESULTS: Number of patients with normal liver enzyme levels were 63 (41.5%), while with raised levels of any of the liver enzymes were 89 (58.5%), out of which 43 (48.31%) had liver injury which manifested as increased severity in terms of intensive care unit (ICU) requirement (p=0.0005). Significantly raised levels of liver enzymes and liver injury were observed with age (p<0.0001) and in males (p=0.004). Significantly decreased levels of albumin and total proteins and increased levels of total bilirubin (p<0.0001) were seen in patients with abnormal liver enzyme levels and liver injury as compared to patients with normal levels. Significant increase in the levels of alanine transaminase and gamma-glutamyl transferase was seen on the 7th day, CRP and ferritin (p<0.0001) peaks were observed on 2nd and 3rd day respectively. A significant positive correlation was found between the levels of these inflammatory markers and liver function parameters. CONCLUSIONS: More than half of patients admitted to the hospital with SARS-CoV-2 infection had an abnormal liver function which was found to be associated with raised levels of inflammatory markers. Significantly higher proportions of patients with abnormal liver function were elderly and males and were at higher risk of progressing to severe disease.


Subject(s)
Biomarkers/blood , COVID-19/complications , Liver Diseases/virology , Adult , Aged , Aged, 80 and over , Albumins/analysis , Bilirubin/analysis , C-Reactive Protein/analysis , COVID-19/diagnosis , COVID-19 Nucleic Acid Testing , Female , Ferritins/blood , Humans , Liver Diseases/blood , Liver Function Tests , Male , Middle Aged , Pandemics , Retrospective Studies , SARS-CoV-2
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