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Illuminating and Instructive Clinical Case Open Access
Xiaona Lu, Kun Liu, Wenlan Zheng, Xuemei Zhang, Jia Shi, Shihan Yu, Yueqiu Gao, Hai Feng, Zhuo Yu
Published online November 28, 2024
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Journal of Clinical and Translational Hepatology. doi:10.14218/JCTH.2024.00304
Abstract
We reported a case of recurrent liver dysfunction in an adult patient with a history of abnormal liver enzymes persisting for over ten years. The primary abnormalities included [...] Read more.

We reported a case of recurrent liver dysfunction in an adult patient with a history of abnormal liver enzymes persisting for over ten years. The primary abnormalities included elevated levels of gamma-glutamyl transferase and alkaline phosphatase. Despite conducting a series of extensive etiological tests to identify common causes of liver disease, the diagnosis remained unclear. However, whole-exome next-generation sequencing revealed a homozygous intronic mutation in the ferrochelatase gene (c.315-48T>C), which may be associated with the patient’s cholestasis.

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Review Article Open Access
Benjamin O. Ezema, Chijioke Nwoye Eze, Thecla Okeahunwa Ayoka, Charles Okeke Nnadi
Published online December 25, 2024
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Journal of Exploratory Research in Pharmacology. doi:10.14218/JERP.2024.00020
Abstract
Free radicals are produced in the body during normal cellular metabolic activities, and their excessive accumulation can overwhelm the natural antioxidant mechanisms. This leads [...] Read more.

Free radicals are produced in the body during normal cellular metabolic activities, and their excessive accumulation can overwhelm the natural antioxidant mechanisms. This leads to oxidative stress, which is associated with the development and progression of non-communicable diseases (NCDs) such as liver and kidney diseases, cardiovascular diseases, neurodegenerative diseases, cancer, and diabetes. Enzymes play a significant role in maintaining a balance between antioxidants and free radicals by either enhancing the production of antioxidants or slowing down the generation of free radicals in the body. There is no up-to-date review on how antioxidant-enzyme interactions modulate the development and progression of NCDs. This review, therefore, discusses the mechanisms of antioxidant-enzyme interactions in the control of oxidative stress, as well as the implications and prospects of these interactions in the management of NCDs. Therapeutic strategies targeting antioxidant-enzyme interactions in the natural defense mechanisms of the body against oxidative stress can provide targeted benefits in the management of various NCDs. The mechanisms of interaction of some antioxidants with catalase, superoxide dismutase, glutathione reductase, glutathione peroxidase, glutathione S-transferases, thioredoxin protein, and thioredoxin reductase suggest their strong involvement in mitigating the development and progression of NCDs. Moreover, understanding the specific interactions and signaling pathways involved in antioxidant-enzyme interactions could facilitate the emergence of novel and effective therapeutic strategies for the management of NCDs and should be considered a primary goal of future studies. This study provides the necessary template, encourages discussion, and creates more opportunities for the next stage in the development of antioxidant therapies.

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Mini Review Open Access
Iris Z. Shen, Lanjing Zhang
Published online April 3, 2025
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Journal of Clinical and Translational Pathology. doi:10.14218/JCTP.2025.00007
Abstract
With the increasing use of artificial intelligence (AI) in diagnostics, AI algorithms have shown great potential in aiding diagnostics. As more of these algorithms are developed, [...] Read more.

With the increasing use of artificial intelligence (AI) in diagnostics, AI algorithms have shown great potential in aiding diagnostics. As more of these algorithms are developed, there is overwhelming enthusiasm for implementing digital and artificial intelligence-based pathology (DAIP), but doubts and pitfalls are also emerging. However, few original or review articles address the limitations and practical aspects of implementing DAIP. In this review, we briefly examine the evidence related to the benefits and pitfalls of DAIP implementation and argue that DAIP is not suitable for every clinical laboratory.

We searched the PubMed database using the following keywords: “digital pathology,” “digital AI pathology,” and “AI pathology.”. Additionally, we incorporated personal experiences and manually searched related papers.

Ninety-two publications were found, of which 24 met the inclusion criteria. Many advantages of DAIP were discussed, including improved diagnostic accuracy and equity. However, several limitations of implementing DAIP exist, such as financial constraints, technical challenges, and legal/ethical concerns.

We found a generally favorable but cautious outlook for the implementation of DAIP in the pathology workflow. Many studies have reported promising outcomes in using AI for diagnosis and analysis; however, there are also several noteworthy limitations in implementing DAIP. Therefore, a balance between the benefits and pitfalls of DAIP must be thoroughly articulated and examined in light of the institution’s needs and goals before making the decision to implement DAIP. Approaches for mitigating machine learning biases were also proposed, and the adaptation and growth of the pathology profession were discussed in light of DAIP development and advances.

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Original Article Open Access
Chao Shi, Jingjing Yu, Ziang Meng, Dongxu Lu, Haoran Ding, Haijun Sun, Guangxin Shi, Dongbo Xue, Xianzhi Meng
Published online February 11, 2025
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Journal of Clinical and Translational Hepatology. doi:10.14218/JCTH.2024.00403
Abstract
Cholesterol synthesis and gallstone formation are promoted by trimethylamine-N-oxide (TMAO), a derivative of trimethylamine, which is a metabolite of gut microbiota. However, the [...] Read more.

Cholesterol synthesis and gallstone formation are promoted by trimethylamine-N-oxide (TMAO), a derivative of trimethylamine, which is a metabolite of gut microbiota. However, the underlying mechanisms of TMAO-induced lithogenesis remain incompletely understood. This study aimed to explore the specific molecular mechanisms through which TMAO promotes gallstone formation.

Enzyme-linked immunosorbent assays were used to compare serum concentrations of TMAO, apolipoprotein A4 (APOA4), and proprotein convertase subtilisin/kexin type 9 (PCSK9) between patients with cholelithiasis and normal controls. A murine model of TMAO-induced cholelithiasis was employed, incorporating assays of gallstone weight and bile cholesterol content, along with RNA sequencing of murine hepatic tissue. A TMAO-induced AML12 hepatocyte line was constructed and transfected with targeted small interfering RNAs and overexpression plasmids. In vivo and in vitro experiments were performed to determine the expression and regulation of genes related to cholesterol metabolism.

Serum TMAO and PCSK9 levels were elevated, whereas APOA4 levels were reduced in patients with cholelithiasis. Furthermore, our murine model demonstrated that TMAO upregulated hepatic expression of PCSK9, 3-hydroxy-3-methylglutaryl-CoA reductase, and ATP-binding cassette sub-family G member 5/8, while reducing APOA4 expression, thereby modulating cholesterol metabolism and promoting lithogenesis. PCSK9 and APOA4 were identified as key regulatory genes in the cholesterol metabolic pathway. PCSK9 knockdown increased APOA4 expression, while APOA4 overexpression led to reduced PCSK9 expression.

TMAO upregulated hepatic PCSK9 expression and reduced APOA4 expression, initiating a feedback loop that dysregulated cholesterol metabolism and promoted lithogenesis.

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Original Article Open Access
Xiaobo Cai, Yin Qu, Wen Xie, Yanbin Wang, Mengyu Zhao, Ling Zhang, Ying Luo, Ping Yin, Jun Cheng, Lungen Lu
Published online March 10, 2025
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Journal of Clinical and Translational Hepatology. doi:10.14218/JCTH.2024.00472
Abstract
Liver fibrosis is a key process in the progression of chronic liver diseases. However, there are currently no drugs specifically designed to treat liver fibrosis. Our Phase 2 trial [...] Read more.

Liver fibrosis is a key process in the progression of chronic liver diseases. However, there are currently no drugs specifically designed to treat liver fibrosis. Our Phase 2 trial of hydronidone for the treatment of chronic hepatitis B (CHB)-associated liver fibrosis showed that adding hydronidone to entecavir resulted in significant reversal of liver fibrosis. To further evaluate the efficacy of a 270 mg/day dose of hydronidone for treating liver fibrosis associated with CHB, we conducted this Phase 3 trial.

This is a 52-week, randomized (1:1), double-blind, placebo-controlled, multicenter, entecavir-based Phase 3 clinical study conducted at 44 study centers across China. Adult patients aged 18 to 65 years with significant liver fibrosis (defined as an Ishak score ≥ 3 on liver biopsy) associated with CHB were included.

The primary endpoint of the trial is to demonstrate the efficacy of fibrosis reversal, defined as a decrease in the Ishak stage score of liver fibrosis by ≥1 after 52 weeks of treatment, compared to baseline.

The results of this trial are expected to further support the antifibrotic indication for this novel drug.

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Original Article Open Access
Gail A.M. Cresci, Qiang Liu, Naseer Sangwan, Darren Liu, David Grove, David Shapiro, Khaled Ali, Beatrice Cazzaniga, Luca Del Prete, Charles Miller, Koji Hashimoto, Cristiano Quintini
Published online January 22, 2025
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Journal of Clinical and Translational Hepatology. doi:10.14218/JCTH.2024.00352
Abstract
End-stage liver disease is associated with disruptions in gut microbiota composition and function, which may facilitate gut-to-liver bacterial translocation, impacting liver graft [...] Read more.

End-stage liver disease is associated with disruptions in gut microbiota composition and function, which may facilitate gut-to-liver bacterial translocation, impacting liver graft integrity and clinical outcomes following liver transplantation. This study aimed to assess the impact of two liver graft preservation methods on fecal microbiota and changes in fecal and breath organic acids following liver transplantation.

This single-center, non-randomized prospective pilot study enrolled liver transplant patients whose grafts were preserved using either static cold storage or ex situ normothermic machine perfusion (NMP). Fresh stool and breath samples were collected immediately before surgery and at postoperative months 3, 6, and 12. Stool microbiota was profiled via 16S rRNA gene sequencing, stool short-chain fatty acids were measured using gas chromatography/-mass spectrometry, and breath volatile organic compounds (VOCs) were analyzed with selected-ion flow-tube mass spectrometry.

Both cohorts experienced a loss of microbiota diversity and dominance by single taxa. The NMP cohort demonstrated enrichment of several beneficial gut taxa, while the static cold storage cohort showed depletion of such taxa. Various gut bacteria were found to correlate with stool short-chain fatty acids (e.g., lactic acid, butyric acid) and several VOCs.

Fecal microbiota alterations associated with end-stage liver disease do not fully normalize to a healthy control profile following liver transplantation. However, notable differences in microbiota composition and function were observed between liver graft preservation methods. Future research with larger randomized cohorts is needed to explore whether the NMP-associated shift in gut microbiota impacts clinical outcomes and if breath VOCs could serve as biomarkers of the clinical trajectory in liver transplant patients.

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Research Letter Open Access
Case Report Open Access
Nicholas Bell, Trinh Nguyen
Published online September 25, 2024
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Journal of Translational Gastroenterology. doi:10.14218/JTG.2024.00007
Abstract
Percutaneous endoscopic gastrostomy (PEG) tube placement is a common procedure used to provide medium- and long-term enteral nutrition to patients. Although generally considered [...] Read more.

Percutaneous endoscopic gastrostomy (PEG) tube placement is a common procedure used to provide medium- and long-term enteral nutrition to patients. Although generally considered safe, PEG tube placement can be associated with various potential complications. We report a case of gastrocolocutaneous fistula formation in a patient who presented with severe abdominal pain, new-onset diarrhea, and feculent emesis nine days after PEG tube placement. Awareness of this rare complication can facilitate the recognition of colonic perforation during gastrostomy tube placement and enable early detection of the complication post-procedurally. Additionally, we discuss various techniques that may be employed to prevent this complication during PEG tube placement.

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Original Article Open Access
Zijie Xu, Wei Li, Wenli Li, Dalei Jiang, Quanjiang Dong, Lili Wang
Published online October 17, 2024
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Exploratory Research and Hypothesis in Medicine. doi:10.14218/ERHM.2024.00023
Abstract
Helicobacter pylori (H. pylori) infection can cause multiple secondary digestive disorders. Some studies have found that polymorphisms in Toll-like receptor (TLR) genes, including [...] Read more.

Helicobacter pylori (H. pylori) infection can cause multiple secondary digestive disorders. Some studies have found that polymorphisms in Toll-like receptor (TLR) genes, including TLR10 rs10004195, may be associated with increased susceptibility to H. pylori infection. Despite conflicting reports, we conducted a meta-analysis to clarify the relationship between these factors.

We conducted an exhaustive review, encompassing all relevant literature up to February 2024, using databases such as PubMed, Embase, Web of Science, and the China National Knowledge Infrastructure. We screened studies based on specific criteria and evaluated their quality using the Newcastle-Ottawa scale. Heterogeneity testing and meta-analysis were performed using Stata 17.0 software, and SPSSAU was used for publication bias evaluation and sensitivity analysis.

Eight of the 487 identified studies met the inclusion criteria, comprising 3,004 and 2,140 individuals in the H. pylori-positive and negative control groups, respectively. Our results demonstrated that individuals carrying the AA genotype at the TLR10 rs10004195 locus had a significantly increased likelihood of H. pylori infection when analyzed using the recessive genetic model (OR: 1.64, CI: 1.04–2.58, p = 0.034). No statistically significant associations were found in the other four genetic models.

Our findings suggest that carrying the TLR10 rs10004195 AA genotype is associated with a significantly elevated risk of H. pylori infection. This information could be used to assess future risk of H. pylori infection in healthy individuals and provide personalized health guidance based on individual genetic polymorphisms.

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Original Article Open Access
Huizhong Ji, Bin Song, Xuehui Li, Hui Chen, Xueli Sun, Tian Tian, Yang Geng, Xin Wang, Hengzhong Zhang, Yumei Wu, Yan Liu, Changjun Pei, Ling Cao
Published online December 31, 2024
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Exploratory Research and Hypothesis in Medicine. doi:10.14218/ERHM.2024.00400
Abstract
Waist circumference (WC) is closely associated with metabolic diseases, including diabetes mellitus (DM), metabolic syndrome, and mortality. However, the correlation between WC [...] Read more.

Waist circumference (WC) is closely associated with metabolic diseases, including diabetes mellitus (DM), metabolic syndrome, and mortality. However, the correlation between WC and mortality varies across populations and has rarely been examined specifically in patients with DM. In this study, we explored the relationships between WC and both all-cause and cardiovascular mortalities among individuals with DM.

Participants from the National Health and Nutrition Examination Survey 2003–2018 included 3,151 women and 3,473 men with DM who had baseline WC measurements. Survival data were collected from enrollment until December 31, 2019. Cox proportional hazard models were adjusted for demographic features and other confounders. Restricted cubic spline curves and threshold effect analyses were performed separately for men and women. Sensitivity analyses were conducted to minimize reverse causality.

Among 6,624 participants with DM, 621 women and 871 men died during median follow-ups of 6.8 and 6.3 years, respectively. WC demonstrated a U-shaped association with all-cause and cardiovascular mortalities in women, and a J-shaped trend in men. The optimal WC thresholds for minimizing mortality risk were 107.0 cm for women and 89.0 cm for men. For women, adjusted hazard ratios for all-cause mortality were 0.97 (95% confidence interval (CI): 0.96–0.98, P < 0.001) for WC below 107.0 cm and 1.04 (95% CI: 1.02–1.05, P < 0.001) for WC above 107.0 cm. In men, the corresponding ratios were 0.94 (95% CI: 0.90–0.97, P < 0.001) for WC below 89.0 cm and 1.03 (95% CI: 1.02–1.05, P < 0.001) for WC above 89.0 cm.

WC showed a U-shaped association with all-cause and cardiovascular mortalities in women and a J-shaped association in men among U.S. adults with DM from the National Health and Nutrition Examination Survey. Further research is needed to explore the underlying mechanisms rather than promoting preconceived notions about an optimal WC.

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