1.Effects of in vivo targeted carboxylesterase 1f gene knockdown on the Kupffer cells polarization activity in mice with acute liver failure.
Sai ZHAO ; Xue YANG ; Qian YU ; Liang Ming LIU
Chinese Journal of Hepatology 2023;31(6):582-588
		                        		
		                        			
		                        			Objective: To investigate the effect of targeted carboxylesterase 1f (Ces1f) gene knockdown on the polarization activity of Kupffer cells (KC) induced by lipopolysaccharide/D-galactosamine (LPS/D-GalN) in mice with acute liver failure. Methods: The complex siRNA-EndoPorter formed by combining the small RNA (siRNA) carrying the Ces1f-targeting interference sequence and the polypeptide transport carrier (Endoporter) was wrapped in β-1, 3-D glucan shell to form complex particles (GeRPs). Thirty male C57BL/6 mice were randomly divided into a normal control group, a model group (LPS/D-GalN), a pretreatment group (GeRPs), a pretreatment model group (GeRPs+LPS/D-GalN), and an empty vector group (EndoPorter). Real-time fluorescent quantitative PCR and western blot were used to detect Ces1f mRNA and protein expression levels in the liver tissues of each mouse group. Real-time PCR was used to detect the expression levels of KC M1 polarization phenotypic differentiation cluster 86(CD86) mRNA and KC M2 polarization phenotypic differentiation cluster 163 (CD163) mRNA in each group. Immunofluorescence double staining technique was used to detect the expression of Ces1f protein and M1/M2 polarization phenotype CD86/CD163 protein in KC. Hematoxylin-eosin staining was used to observe the pathological damage to liver tissue. A one-way analysis of variance was used to compare the means among multiple groups, or an independent sample nonparametric rank sum test was used when the variances were uneven. Results: The relative expression levels of Ces1f mRNA/protein in liver tissue of the normal control group, model group, pretreatment group, and pretreatment model group were 1.00 ± 0.00, 0.80 ± 0.03/0.80 ± 0.14, 0.56 ± 0.08/0.52 ± 0.13, and 0.26 ± 0.05/0.29 ± 0.13, respectively, and the differences among the groups were statistically significant (F = 9.171/3.957, 20.740/9.315, 34.530/13.830, P < 0.01). The percentages of Ces1f-positive Kupffer cells in the normal control group, model group, pretreatment group, and pretreatment model group were 91.42%, ± 3.79%, 73.85% ± 7.03%, 48.70% ± 5.30%, and 25.68% ± 4.55%, respectively, and the differences between the groups were statistically significant (F = 6.333, 15.400, 23.700, P < 0.01). The relative expression levels of CD86 mRNA in the normal control group, model group, and pretreatment model group were 1.00 ± 0.00, 2.01 ± 0.04, and 4.17 ± 0.14, respectively, and the differences between the groups were statistically significant (F = 33.800, 106.500, P < 0.01). The relative expression levels of CD163 mRNA in the normal control group, the model group, and the pretreatment model group were 1.00 ± 0.00, 0.85 ± 0.01, and 0.65 ± 0.01, respectively, and the differences between the groups were statistically significant (F = 23.360, 55.350, P < 0.01). The percentages of (F4/80(+)CD86(+)) and (F4/80(+)CD163(+)) in the normal control group and model group and pretreatment model group were 10.67% ± 0.91% and 12.60% ± 1.67%, 20.02% ± 1.29% and 8.04% ± 0.76%, and 43.67% ± 2.71% and 5.43% ± 0.47%, respectively, and the differences among the groups were statistically significant (F = 11.130/8.379, 39.250/13.190, P < 0.01). The liver injury scores of the normal control group, the model group, and the pretreatment model group were 0.22 ± 0.08, 1.32 ± 0.36, and 2.17 ± 0.26, respectively, and the differences among the groups were statistically significant (F = 12.520 and 22.190, P < 0.01). Conclusion: Ces1f may be a hepatic inflammatory inhibitory molecule, and its inhibitory effect production may come from the molecule's maintenance of KC polarization phenotypic homeostasis.
		                        		
		                        		
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Mice
		                        			;
		                        		
		                        			Carboxylesterase/genetics*
		                        			;
		                        		
		                        			Galactosamine
		                        			;
		                        		
		                        			Gene Knockdown Techniques
		                        			;
		                        		
		                        			Kupffer Cells
		                        			;
		                        		
		                        			Lipopolysaccharides/adverse effects*
		                        			;
		                        		
		                        			Liver Failure, Acute/chemically induced*
		                        			;
		                        		
		                        			Mice, Inbred C57BL
		                        			;
		                        		
		                        			RNA, Messenger
		                        			
		                        		
		                        	
2.Liver transplantation for the treatment of acute liver failure in 3 cases with NBAS gene deficiency and literature review.
Zhong Die LI ; Yu Chuan LI ; Cong Huan SHEN ; Jian She WANG ; Xin Bao XIE
Chinese Journal of Pediatrics 2023;61(1):66-69
		                        		
		                        			
		                        			Objective: To investigate the clinical efficacy of liver transplantation in the treatment of acute liver in children with NBAS gene deficiency disease and their outcome. Methods: This retrospective study enrolled children with NBAS gene deficiency who were admitted to the Children's Hospital of Fudan University for liver transplantation from January 2013 to June 2022. The clinical data were collected and analyzed. Medical literature published before June 2022 was searched with the keywords of "NBAS" "neuroblastoma amplified sequence recurrent" "acute liver failure" "SOPH syndrome" "short stature with optic nerve atrophy" "Pelger-Huët anomaly" in PubMed, China National Knowledge Infrastructure and Wanfang database. Results: Liver transplantation was performed in 3 patients (2 males and 1 female) with NBAS deficiency. All patients presented with fever-triggered recurrent acute liver failure. The genetic detection found compound heterozygous NBAS gene pathogenic variants in them. The total episodes of acute liver failure before liver transplantation were 11, 2, and 4 respectively, and the age at liver transplantation was 3.5, 2.3, and 2.0 years respectively. During liver transplantation, patient 1 was in the convalescent phase of acute liver failure, patient 2 was in the acute phase, presenting with hepatic encephalopathy (grade V) and respiratory failure, and patient 3 was considered to be in the acute phase. After liver transplantation, patient 1 recovered normal liver function within 1 month and had no liver transplantation-related complications. Patient 2 had secondary epilepsy, intellectual disability, movement disorder, and transiently elevated transaminases. Patient 3 died of severe infection within 1 month. There was no literature in Chinese, 6 in English, 8 NBAS-deficient patients who were treated with liver transplantation. Total 11 patients presented with fever-triggered recurrent acute liver failure. Their age at liver transplantation ranged from 0.9 to 5.0 years. Postoperative complications occurred in 3 patients. Until the last visit, they were followed up for 0.7 to 14.0 years. Total 2 patients died and the 9 surviving patients did not develop acute liver failure. Conclusions: Liver transplantation is effective for the treatment of acute liver failure associated with NBAS gene disease. However, postoperative complications of liver transplantation may occur. The timing of liver transplantation still needs further research.
		                        		
		                        		
		                        		
		                        			Child
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Infant
		                        			;
		                        		
		                        			Child, Preschool
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Neoplasm Proteins/genetics*
		                        			;
		                        		
		                        			Optic Atrophy/genetics*
		                        			;
		                        		
		                        			Pelger-Huet Anomaly/genetics*
		                        			;
		                        		
		                        			Liver Failure, Acute/complications*
		                        			
		                        		
		                        	
3.Sulforaphane, an NRF2 agonist, alleviates ferroptosis in acute liver failure by regulating HDAC6 activity.
Yan-Qiong ZHANG ; Chun-Xia SHI ; Dan-Mei ZHANG ; Lu-Yi ZHANG ; Lu-Wen WANG ; Zuo-Jiong GONG
Journal of Integrative Medicine 2023;21(5):464-473
		                        		
		                        			OBJECTIVE:
		                        			Acute liver failure (ALF) is characterized by severe liver dysfunction, rapid progression and high mortality and is difficult to treat. Studies have found that sulforaphane (SFN), a nuclear factor E2-related factor 2 (NRF2) agonist, has anti-inflammatory, antioxidant and anticancer effects, and has certain protective effects on neurodegenerative diseases, cancer and liver fibrosis. This paper aimed to explore the protective effect of SFN in ALF and it possible mechanisms of action.
		                        		
		                        			METHODS:
		                        			Lipopolysaccharide and D-galactosamine were used to induce liver injury in vitro and in vivo. NRF2 agonist SFN and histone deacetylase 6 (HDAC6) inhibitor ACY1215 were used to observe the protective effect and possible mechanisms of SFN in ALF, respectively. Cell viability, lactate dehydrogenase (LDH), Fe2+, glutathione (GSH) and malondialdehyde (MDA) were detected. The expression of HDAC6, NRF2, glutathione peroxidase 4 (GPX4), acyl-CoA synthetase long-chain family member 4 (ACSL4) and solute carrier family 7 member 11 (SLC7A11) were detected by Western blotting and immunofluorescence.
		                        		
		                        			RESULTS:
		                        			Our results show that NRF2 was activated by SFN. LDH, Fe2+, MDA and ACSL4 were downregulated, while GSH, GPX4 and SLC7A11 were upregulated by SFN in vitro and in vivo, indicating the inhibitory effect of SFN on ferroptosis. Additionally, HDAC6 expression was decreased in the SFN group, indicating that SFN could downregulate the expression of HDAC6 in ALF. After using the HDAC6 inhibitor, ACY1215, SFN further reduced HDAC6 expression and inhibited ferroptosis, indicating that SFN may inhibit ferroptosis by regulating HDAC6 activity.
		                        		
		                        			CONCLUSION
		                        			SFN has a protective effect on ALF, and the mechanism may include reduction of ferroptosis through the regulation of HDAC6. Please cite this article as: Zhang YQ, Shi CX, Zhang DM, Zhang LY, Wang LW, Gong ZJ. Sulforaphane, an NRF2 agonist, alleviates ferroptosis in acute liver failure by regulating HDAC6 activity. J Integr Med. 2023; 21(5): 464-473.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Ferroptosis
		                        			;
		                        		
		                        			NF-E2-Related Factor 2/genetics*
		                        			;
		                        		
		                        			Liver Failure, Acute/drug therapy*
		                        			;
		                        		
		                        			Isothiocyanates/pharmacology*
		                        			;
		                        		
		                        			Glutathione
		                        			;
		                        		
		                        			Histone Deacetylase 6
		                        			
		                        		
		                        	
4.Protective effect of recombinant Schistosoma japonicum cystatin against acute kidney injury associated with acute liver failure in mice.
Y XUE ; X YANG ; H ZHANG ; T ZHANG ; W CHEN ; X CHANG ; Y WANG
Chinese Journal of Schistosomiasis Control 2023;35(4):331-339
		                        		
		                        			OBJECTIVE:
		                        			To evaluate the protective effect of recombinant Schistosoma japonicum cystatin (rSj-Cys) against acute kidney injury induced by acute liver failure and unravel the underlying mechanism, so as to provide insights into the clinical therapy of acute kidney injury.
		                        		
		                        			METHODS:
		                        			Twenty-four male C57BL/6J mice at ages of 6 to 8 weeks were randomly divided into the normal control group, rSj-Cys control group, lipopolysaccharide (LPS)/D-galactosamine (D-GaIN) model group and LPS/D-GaIN + rSj-Cys treatment group, of 6 mice each group. Mice in the LPS/D-GaIN group and LPS/D-GaIN + rSj-Cys group were intraperitoneally injected with LPS (10 μg/kg) and D-GaIN (700 mg/kg), and mice in the LPS/D-GaIN + rSj-Cys group were additionally administered with rSj-Cys (1.25 mg/kg) by intraperitoneal injection 30 min post-modeling, while mice in the rSj-Cys group were intraperitoneally injected with rSj-Cys (1.25 mg/kg), and mice in the normal control group were injected with the normal volume of PBS. All mice were sacrificed 6 h post-modeling, and mouse serum and kidney samples were collected. Serum creatinine (Cr) and urea nitrogen (BUN) levels were measured, and the pathological changes of mouse kidney specimens were examined using hematoxylin-eosin (HE) staining. Serum tumor necrosis factor (TNF)-α and interleukin (IL)-6 levels were detected using enzyme-linked immunosorbent assay (ELISA), and the expression of inflammatory factors and pyroptosis-related proteins was quantified in mouse kidney specimens using immunohistochemistry. In addition, the expression of pyroptosis-related proteins and nuclear factor-kappa B (NF-κB) signaling pathway-associated proteins was determined in mouse kidney specimens using Western blotting assay.
		                        		
		                        			RESULTS:
		                        			HE staining showed no remarkable abnormality in the mouse kidney structure in the normal control group and the rSj-Cys control group, and renal tubular injury was found in LPS/D-GaIN group, while the renal tubular injury was alleviated in LPS/D-GaIN+rSj-Cys treatment group. There were significant differences in serum levels of Cr (F = 46.33, P < 0.001), BUN (F = 128.60, P < 0.001), TNF-α (F = 102.00, P < 0.001) and IL-6 (F = 202.10, P < 0.001) among the four groups, and lower serum Cr [(85.35 ± 32.05) μmol/L], BUN [(11.90 ± 2.76) mmol/L], TNF-α [(158.27 ± 15.83) pg/mL] and IL-6 levels [(56.72 ± 4.37) pg/mL] were detected in the in LPS/D-GaIN + rSj-Cys group than in the LPS/D-GaIN group (all P values < 0.01). Immunohistochemical staining detected significant differences in TNF-α (F = 24.16, P < 0.001) and IL-10 (F = 15.07, P < 0.01) expression among the four groups, and lower TNF-α [(106.50 ± 16.57)%] and higher IL-10 expression [(91.83 ± 5.23)%] was detected in the LPS/D-GaIN + rSj-Cys group than in the LPS/D-GaIN group (both P values < 0.01). Western blotting and immunohistochemistry detected significant differences in the protein expression of pyroptosis-related proteins NOD-like receptor thermal protein domain associated protein 3 (NLRP3) (F = 24.57 and 30.72, both P values < 0.001), IL-1β (F = 19.24 and 22.59, both P values < 0.001) and IL-18 (F = 16.60 and 19.30, both P values < 0.001) in kidney samples among the four groups, and lower NLRP3, IL-1β and IL-18 expression was quantified in the LPS/D-GaIN + rSj-Cys treatment group than in the LPS/D-GaIN group (P values < 0.05). In addition, there were significant differences in the protein expression of NF-κB signaling pathway-associated proteins p-NF-κB p-P65/NF-κB p65 (F = 71.88, P < 0.001), Toll-like receptor (TLR)-4 (F = 45.49, P < 0.001) and p-IκB/IκB (F = 60.87, P < 0.001) in mouse kidney samples among the four groups, and lower expression of three NF-κB signaling pathway-associated proteins was determined in the LPS/D-GaIN + rSj-Cys treatment group than in the LPS/D-GaIN group (all P values < 0.01).
		                        		
		                        			CONCLUSIONS
		                        			rSj-Cys may present a protective effect against acute kidney injury caused by acute liver failure through inhibiting inflammation and pyroptosis and downregulating the NF-κB signaling pathway.
		                        		
		                        		
		                        		
		                        			Mice
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Interleukin-10
		                        			;
		                        		
		                        			Tumor Necrosis Factor-alpha/genetics*
		                        			;
		                        		
		                        			NF-kappa B/therapeutic use*
		                        			;
		                        		
		                        			Interleukin-18/therapeutic use*
		                        			;
		                        		
		                        			Schistosoma japonicum/metabolism*
		                        			;
		                        		
		                        			Interleukin-6/therapeutic use*
		                        			;
		                        		
		                        			Lipopolysaccharides/therapeutic use*
		                        			;
		                        		
		                        			NLR Family, Pyrin Domain-Containing 3 Protein
		                        			;
		                        		
		                        			Mice, Inbred C57BL
		                        			;
		                        		
		                        			Acute Kidney Injury/drug therapy*
		                        			;
		                        		
		                        			Liver Failure, Acute
		                        			;
		                        		
		                        			Cystatins/therapeutic use*
		                        			
		                        		
		                        	
5.Clinical characteristics of Wilson's disease with onset of acute liver failure in 19 children.
Pan LIU ; Chang SHU ; Li TANG ; Xi LIU ; Xiao Kang PENG ; Rui Na LI ; Ya Rong LI ; Xiao Guai LIU
Chinese Journal of Pediatrics 2022;60(5):452-456
		                        		
		                        			
		                        			Objective: To analyze the clinical characteristics of Wilson's disease (WD) with onset of acute liver failure (ALF) in children. Methods: Clinical data of 19 children diagnosed with WD presented with ALF in Xi'an Children's Hospital from January 2016 to April 2021 were retrospectively analyzed, including general condition, clinical manifestation, laboratory examination, and gene detection. The children were divided into the death group and survival group according to the clinical outcome. The children who had hepatic WD with non-ALF onset during the same period were selected as the control. The general conditions and laboratory indexes were compared between death group and survival group, ALF group and non-ALF group. T-test, Mann Whitney U test or χ2 test were used to compare the differences between the two groups. Results: Of the 19 WD children with ALF onset, 10 were females and 9 were males. The age of admission was (10.1±2.6) years and time to onset of first visit was 9 (4, 15) days. Among the WD children with ALF onset, 4 children were lost to follow-up, 5 cases death (death group) and 10 cases survived (survival group). The ceruloplasmin in the death group was higher than that in the survival group (0.078 (0.055, 0.105) vs. 0.033 (0.027, 0.058) g/L, Z=-2.33, P=0.020). There were 95 children who had hepatic WD with non-ALF onset. The WD patients with ALF onset were older at admission (9.9 (8.0, 11.1) vs. 5.4 (3.7, 6.9) years, Z=-5.25, P<0.001), had higher ceruloplasmin (0.060 (0.030, 0.078) vs. 0.024 (0.006, 0.060) g/L, Z=-3.11, P=0.002), 24 h urinary copper (674 (205, 1 803) vs. 149 (108, 206) μg, Z=-4.25, P<0.001), and positive rate of K-F ring [17/19 vs. 7%(7/95), χ2=50.17, P<0.001] while shorter onset time at initial visit (0.3 (0.1, 0.5) vs. 1.0 (0.7, 6.0) months, Z=-4.28, P<0.001). There was no gender difference between the two groups [9/19 vs. 61%(58/95), χ2=1.22, P=0.269]. Of the 19 WD children with ALF onset, 13 had the ATP7B gene tested, and 15 reported variants were detected. The main variations were c.2333G>T (p. Arg778Leu), c.2621C>T (p. Ala874Val) and c.2975C>T (p. Pro992Leu). The allele frequencies were 6/26(23%), 4/26(15%) and 3/26(12%), respectively. Conclusions: Children of WD onset with ALF are school-aged and above. They have an acute onset, a short course of the disease, and poor prognosis. The positive rate of K-F ring, ceruloplasmin and urinary copper are higher than those of the hepatic WD children with non-ALF onset.
		                        		
		                        		
		                        		
		                        			Ceruloplasmin/metabolism*
		                        			;
		                        		
		                        			Child
		                        			;
		                        		
		                        			Copper/metabolism*
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Hepatolenticular Degeneration/genetics*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Liver Failure, Acute/therapy*
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Retrospective Studies
		                        			
		                        		
		                        	
6.Comparison of tenofovir alafenamide and entecavir for hepatitis B virus-related acute-on-chronic liver failure.
Wenting PENG ; Huimin GU ; Chuan JIANG ; Jinqing LIU ; Jian ZHANG ; Lei FU
Journal of Central South University(Medical Sciences) 2022;47(2):194-201
		                        		
		                        			OBJECTIVES:
		                        			Hepatitis B virus related acute-on-chronic liver failure (HBV-ACLF) is the most common type of liver failure in China, with a high mortality. Early rapid reduction of HBV-DNA load can improve the survival rate of HBV-ACLF patients. At present, the commonly used drugs are nucleoside (acid) analogues, such as entecavir (ETV), tenofovir, and so on. The newly listed tenofovir alafenamide fumarate (TAF) has attracted great attention of clinicians because of its stronger antiviral effect, higher transaminase normalization rate, better bone and kidney safety, and zero drug resistance. However, there are few clinical research data on the efficacy and safety of TAF in the treatment of Chinese HBV-ACLF patients, and there is a lack of pharmacoeconomic evaluation. This study aims to compare the efficacy, safety, and cost-effectiveness between TAF and ETV in patients with HBV-ACLF.
		                        		
		                        			METHODS:
		                        			The data were collected from 196 HBV-ACLF patients (80 patients in the TAF group and 116 patients in the ETV group) who were hospitalized in Xiangya Hospital, Central South University from May 2020 to March 2021. Biochemistry and virology were detected before and after treatment (at baseline, Week 2, 4, and 12). Clinical features, disease prognosis, and cost-effectiveness were compared between the 2 groups. According to the baseline, HBV-ACLF patients were divided into 4 stages including pre-liver failure stage, early stage, medium stage, and end stage. And the liver transplantation rate and mortality was also compared. Pharmacoeconomic evaluation was taken using cost-effectiveness analysis and cost minimization analysis..
		                        		
		                        			RESULTS:
		                        			After 4 weeks of treatment, there were no significant differences in the efficacy (liver function, viral load) between the 2 groups (all P>0.05). The TAF group showed lower creatinine [(80.35±18.77) μmol/L vs (105.59±82.32) μmol/L, P<0.05] and higher estimated glomerular filtration rate (eGFR) levels [(95.65±23.21) mL/(min·1.73 m2) vs (82.68±26.32) mL/(min·1.73 m2), P<0.05] than the ETV group. After 12 weeks of treatment, the analysis of overall the liver transplantation rate and mortality between the 2 groups showed similar conclusion. However, the TAF group had a lower the liver transplantation rate and mortality than the ETV group in patients with pre-liver failure (0vs13.89%, P<0.05). No evident distinction was found in the liver transplantation rate and mortality during the early, medium, or end stages of liver failure (13.04% vs 17.65%, 37.50% vs 37.04%, and 54.55% vs 68.42%, respectively). Ratio of cost to effectiveness in the ETV group was higher than that in the TAF group.
		                        		
		                        			CONCLUSIONS
		                        			TAF is not more efficient than ETV group in improving liver function and reducing viral load for HBV-ACLF patients and they also show similar safety. However, TAF has a greater advantage over ETV not only in preserving renal function, but also in reducing the liver transplantation rate and mortality in patients with pre-liver failure. TAF can provide economic benefit to patients with HBV-ACLF.
		                        		
		                        		
		                        		
		                        			Acute-On-Chronic Liver Failure/drug therapy*
		                        			;
		                        		
		                        			Alanine/therapeutic use*
		                        			;
		                        		
		                        			Antiviral Agents/therapeutic use*
		                        			;
		                        		
		                        			Guanine/analogs & derivatives*
		                        			;
		                        		
		                        			Hepatitis B virus/genetics*
		                        			;
		                        		
		                        			Hepatitis B, Chronic/drug therapy*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Tenofovir/analogs & derivatives*
		                        			;
		                        		
		                        			Treatment Outcome
		                        			
		                        		
		                        	
7.Comparative Analysis of Liver Injury-Associated Cytokines in Acute Hepatitis A and B.
So Youn SHIN ; Sook Hyang JEONG ; Pil Soo SUNG ; Jino LEE ; Hyung Joon KIM ; Hyun Woong LEE ; Eui Cheol SHIN
Yonsei Medical Journal 2016;57(3):652-657
		                        		
		                        			
		                        			PURPOSE: Acute hepatitis A (AHA) and acute hepatitis B (AHB) are caused by an acute infection of the hepatitis A virus and the hepatitis B virus, respectively. In both AHA and AHB, liver injury is known to be mediated by immune cells and cytokines. In this study, we measured serum levels of various cytokines and T-cell cytotoxic proteins in patients with AHA or AHB to identify liver injury-associated cytokines. MATERIALS AND METHODS: Forty-six patients with AHA, 16 patients with AHB, and 14 healthy adults were enrolled in the study. Serum levels of 17 cytokines and T-cell cytotoxic proteins were measured by enzyme-linked immunosorbent assays or cytometric bead arrays and analyzed for correlation with serum alanine aminotransferase (ALT) levels. RESULTS: Interleukin (IL)-18, IL-8, CXCL9, and CXCL10 were significantly elevated in both AHA and AHB. IL-6, IL-22, granzyme B, and soluble Fas ligand (sFasL) were elevated in AHA but not in AHB. In both AHA and AHB, the serum level of CXCL10 significantly correlated with the peak ALT level. Additionally, the serum level of granzyme B in AHA and the serum level of sFasL in AHB correlated with the peak ALT level. CONCLUSION: We identified cytokines and T-cell cytotoxic proteins associated with liver injury in AHA and AHB. These findings deepen the existing understanding of immunological mechanisms responsible for liver injury in acute viral hepatitis.
		                        		
		                        		
		                        		
		                        			Acute Disease
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Alanine Transaminase/blood
		                        			;
		                        		
		                        			Biomarkers/blood
		                        			;
		                        		
		                        			Cytokines/*blood
		                        			;
		                        		
		                        			Enzyme-Linked Immunosorbent Assay
		                        			;
		                        		
		                        			Fas Ligand Protein/blood
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Hepatitis A/blood/virology
		                        			;
		                        		
		                        			Hepatitis A virus/*genetics/immunology
		                        			;
		                        		
		                        			Hepatitis B/blood/virology
		                        			;
		                        		
		                        			Hepatitis B virus/*genetics/immunology
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Interleukin-6/blood
		                        			;
		                        		
		                        			Interleukin-8/blood
		                        			;
		                        		
		                        			Interleukins/blood
		                        			;
		                        		
		                        			Liver Failure/immunology/metabolism/*pathology
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			T-Lymphocytes, Cytotoxic/immunology/*metabolism
		                        			
		                        		
		                        	
8.Static and dynamic prognostic factors for hepatitis-B-related acute-on-chronic liver failure.
Jung Min HA ; Won SOHN ; Ju Yeon CHO ; Jeung Hui PYO ; Kyu CHOI ; Dong Hyun SINN ; Geum Youn GWAK ; Moon Seok CHOI ; Joon Hyeok LEE ; Kwang Chul KOH ; Seung Woon PAIK ; Byung Chul YOO ; Yong Han PAIK
Clinical and Molecular Hepatology 2015;21(3):232-241
		                        		
		                        			
		                        			BACKGROUND/AIMS: Hepatitis-B-related acute-on-chronic liver failure has a poor prognosis. However, the advent of potent oral antiviral agents means that some patients can now recover with medical treatment. We aimed to identify the prognostic factors for hepatitis-B-related acute-on-chronic liver failure including the initial as well as the dynamically changing clinical parameters during admission. METHODS: Sixty-seven patients were retrospectively enrolled from 2003 to 2012 at Samsung Medical Center. The patients were classified into three categories: Recovery group (n=23), Liver transplantation group (n=28), and Death group (n=16). The Liver transplantation and Death groups were combined into an Unfavorable prognosis group. We analyzed the prognostic factors including the Model for End-Stage Liver Disease (MELD) scores determined at 3-day intervals. RESULTS: A multivariable analysis showed that the unfavorable prognostic factors were a high initial MELD score (> or =28) (odds ratio [OR] =6.64, p=0.015), moderate-to-severe ascites at admission (OR=6.71, P=0.012), and the aggravation of hepatic encephalopathy during hospitalization (> or =grade III) (OR=15.41, P=0.013). Compared with the baseline level, significant reductions in the MELD scores were observed on the 7th day after admission in the Recovery group (P=0.016). CONCLUSIONS: Dynamic changes in clinical parameters during admission are useful prognostic factors for hepatitis-B-related acute-on-chronic liver failure.
		                        		
		                        		
		                        		
		                        			Acute-On-Chronic Liver Failure/*diagnosis/drug therapy/etiology
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Antibodies, Monoclonal, Murine-Derived/therapeutic use
		                        			;
		                        		
		                        			Antineoplastic Combined Chemotherapy Protocols/therapeutic use
		                        			;
		                        		
		                        			Antiviral Agents/therapeutic use
		                        			;
		                        		
		                        			Cyclophosphamide/therapeutic use
		                        			;
		                        		
		                        			DNA, Viral/analysis
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		                        			Doxorubicin/therapeutic use
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		                        			Female
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		                        			Hepatitis B virus/genetics
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		                        			Hepatitis B, Chronic/complications/*diagnosis/drug therapy
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		                        			Hospitalization
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		                        			Humans
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		                        			Liver Transplantation
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		                        			Male
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		                        			Middle Aged
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		                        			Multivariate Analysis
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		                        			Odds Ratio
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		                        			Prednisone/therapeutic use
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		                        			Prognosis
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		                        			Retrospective Studies
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		                        			Severity of Illness Index
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		                        			Vincristine/therapeutic use
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		                        			Young Adult
		                        			
		                        		
		                        	
9.Plasma cell-free DNA for predicting outcomes of patients with HBV-related acute-on-chronic liver failure: a pilot study.
Fan LI ; Tao YAN ; Ke LI ; Jinsong MU ; Haibin SU ; Huifen WANG
Journal of Southern Medical University 2014;34(2):147-152
OBJECTIVECell-free DNA (cfDNA) was shown to be a prognostic marker for diverse pathological states in the Intense Care Unit, but little is known of the role of cfDNA in HBV-related acute-on-chronic liver failure (ACLF). We hypothesize that cfDNA can also be a promising prognostic as well as a diagnostic marker in patients with HBV-related ACLF.
METHODSThirty-eight patients with HBV-related ACLF admitted in the Intense Care Unit were enrolled in the study. The patients were divided, according to the improvement of liver function at discharge, into favorable prognosis group (group 1, n=17) and poor prognosis group (group 2, n=19). Plasma samples were collected from each patient at hospitalization and at discharge to measure cfDNA by real-time quantitative PCR. MELD score was calculated at the same time points.
RESULTSThe average level of cfDNA of group 1 was lower than that of group 2 both at the time of hospitalization (P=0.044) and at discharge (P<0.001). There was no difference in MELD score between the two groups at hospitalization. Significant correlations were found of cfDNA levels with the MELD score, TBIL, CRE and INR both at hospitalization (γ=0.662, P<0.001; γ=0.356, P=0.033; γ=0.360, P=0.031; γ=0.570, P<0.001, respectively) and at discharge (γ=0.854, P<0.001; γ=0.821, P<0.001; γ=0.650, P<0.001; γ=0.638, P<0.001, respectively). The ROC curve showed that cfDNA level at discharge was optimal in diagnosing ACLF with an area under curve (AUC) value of 0.96, followed by δcfDNA (AUC value of 0.923) and cfDNA level at hospitalization (AUC value of 0.667). The MELD scores had an AUC value of only 0.545 at the time of hospitalization.
CONCLUSIONcfDNA may serve as a promising prognostic and diagnostic marker for predicting in-hospital prognosis of HBV-related ACLF within 2 to 8 weeks.
Acute-On-Chronic Liver Failure ; diagnosis ; virology ; Adult ; DNA, Viral ; blood ; End Stage Liver Disease ; diagnosis ; Female ; Hepatitis B ; complications ; Hepatitis B virus ; genetics ; Humans ; Male ; Middle Aged ; Pilot Projects ; Plasma ; chemistry ; Prognosis ; Severity of Illness Index
            
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