1.Dynamic change of metabolic dysfunction-associated steatotic liver disease in chronic hepatitis C patients after viral eradication: A nationwide registry study in Taiwan
Chung-Feng HUANG ; Chia-Yen DAI ; Yi-Hung LIN ; Chih-Wen WANG ; Tyng-Yuan JANG ; Po-Cheng LIANG ; Tzu-Chun LIN ; Pei-Chien TSAI ; Yu-Ju WEI ; Ming-Lun YEH ; Ming-Yen HSIEH ; Chao-Kuan HUANG ; Jee-Fu HUANG ; Wan-Long CHUANG ; Ming-Lung YU
Clinical and Molecular Hepatology 2024;30(4):883-894
Background/Aims:
Steatotic liver disease (SLD) is a common manifestation in chronic hepatitis C (CHC). Metabolic alterations in CHC are associated with metabolic dysfunction-associated steatotic liver disease (MASLD). We aimed to elucidate whether hepatitis C virus (HCV) eradication mitigates MASLD occurrence or resolution.
Methods:
We enrolled 5,840 CHC patients whose HCV was eradicated by direct-acting antivirals in a nationwide HCV registry. MASLD and the associated cardiometabolic risk factors (CMRFs) were evaluated at baseline and 6 months after HCV cure.
Results:
There were 2,147 (36.8%) patients with SLD, and 1,986 (34.0%) of them met the MASLD criteria before treatment. After treatment, HbA1c (6.0% vs. 5.9%, p<0.001) and BMI (24.8 kg/m2 vs. 24.7 kg/m2, p<0.001) decreased, whereas HDL-C (49.1 mg/dL vs. 51.9 mg/dL, p<0.001) and triglycerides (102.8 mg/dL vs. 111.9 mg/dL, p<0.001) increased significantly. The proportion of patients with SLD was 37.5% after HCV eradication, which did not change significantly compared with the pretreatment status. The percentage of the patients who had post-treatment MASLD was 34.8%, which did not differ significantly from the pretreatment status (p=0.17). Body mass index (BMI) (odds ratio [OR] 0.89; 95% confidence intervals [CI] 0.85–0.92; p<0.001) was the only factor associated with MASLD resolution. In contrast, unfavorable CMRFs, including BMI (OR 1.10; 95% CI 1.06–1.14; p<0.001) and HbA1c (OR 1.19; 95% CI 1.04–1.35; p=0.01), were independently associated with MASLD development after HCV cure.
Conclusions
HCV eradication mitigates MASLD in CHC patients. CMRF surveillance is mandatory for CHC patients with metabolic alterations, which are altered after HCV eradication and predict the evolution of MASLD.
2.Hyperpolarized Carbon-13 Magnetic Resonance Imaging:Technical Considerations and Clinical Applications
Ying-Chieh LAI ; Ching-Yi HSIEH ; Yu-Hsiang JUAN ; Kuan-Ying LU ; Hsien-Ju LEE ; Shu-Hang NG ; Yung-Liang WAN ; Gigin LIN
Korean Journal of Radiology 2024;25(5):459-472
Hyperpolarized (HP) carbon-13 ( 13C) MRI represents an innovative approach for noninvasive, real-time assessment of dynamic metabolic flux, with potential integration into routine clinical MRI. The use of [1- 13C]pyruvate as a probe and its conversion to [1- 13C]lactate constitute an extensively explored metabolic pathway. This review comprehensively outlines the establishment of HP 13C-MRI, covering multidisciplinary team collaboration, hardware prerequisites, probe preparation, hyperpolarization techniques, imaging acquisition, and data analysis. This article discusses the clinical applications of HP 13C-MRI across various anatomical domains, including the brain, heart, skeletal muscle, breast, liver, kidney, pancreas, andprostate. Each section highlights the specific applications and findings pertinent to these regions, emphasizing the potential versatility of HP 13C-MRI in diverse clinical contexts. This review serves as a comprehensive update, bridging technical aspects with clinical applications and offering insights into the ongoing advancements in HP 13C-MRI.
3. Analysis of silica dust detection results in workplace air of somewhere in enterprise
Kuan WAN ; Yehua TANG ; Weiyi ZHANG ; Haiying PAN ; Yaozhong QIAN ; Lianhong ZHANG ; Yufeng SHEN ; Cuiping FANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2019;37(11):823-826
Objective:
To understand the occupational hazard and distribution of silica dust (free SiO2≥10%) in the workplace environment of the enterprises in Fengxian District, and to provide scientific basis for improving the working environment and protecting the physical and mental health of the workers.
Methods:
Individual sampling monitoring and on-site labor hygiene investigation were conducted on 421 workers involved in 87 silicon dust enterprises in the jurisdiction from 2014 to 2018, and measured concentration-time weighted average (
4.Psychometric Properties of the Self-Efficacy Scale among Undergraduate Students in Malaysia
Liu Kien Ting ; Garry Kuan ; Wan Nor Arifin ; Kueh Yee Cheng
Malaysian Journal of Medical Sciences 2019;26(3):119-128
Background: Self-efficacy (SE) is a person’s belief in his or her own capability to perform
and accomplish a task that could produce a favourable outcome, despite facing obstacles. This
study aimed to confirm the validity and reliability of an SE scale among undergraduate students at
the Health Campus of the Universiti Sains Malaysia.
Methods: A cross-sectional study was conducted among the undergraduate students
using a self-administered questionnaire. After using a purposive sampling method, 562 students
completed the questionnaire. Mplus 8 was employed to conduct the confirmatory factor analysis
on the psychometric properties of Bandura’s 18-item SE scale with three factors (internal feeling,
competing demands and situational). Then, the composite reliability was calculated for each factor.
Results: Most of the students were Malay (73.3%) females (79.0%) who exercised 2.62
times a week for an average of 43.37 min per session. The final measurement model was obtained
after removing six problematic items, and the model was deemed fit based on several indices [Root
Mean Square Error of Approximation (RMSEA) = 0.067, Standardised Root Mean Square Residual
(SRMR) = 0.004, Comparative Fit Index (CFI) = 0.924]. The composite reliability values of the
three factors were acceptable (0.65 to 0.84).
Conclusion: The simplified 12-item SE scale with three factors displayed good fit indices
with regard to the data, and they were considered to be acceptable for the current sampl
5.Hepatic Cyp1a2 Expression Reduction during Inflammation Elicited in a Rat Model of Intermittent Hypoxia.
Li-Xia SHI ; Xing WANG ; Qi WU ; Xin SUN ; Zhen WAN ; Li LI ; Kuan LI ; Xue LI ; Yu LI ; Qiu-Yang ZHANG ; Jun-Ping WU ; Huai-Yong CHEN
Chinese Medical Journal 2017;130(21):2585-2590
BACKGROUNDIntermittent hypoxia (IH) is a key element of obstructive sleep apnea (OSA) that can lead to disorders in the liver. In this study, IH was established in a rat model to examine its effects on the expression of hepatic cytochrome P450 (CYP) and CYP regulators, including nuclear receptors.
METHODSHematoxylin and eosin staining was conducted to analyze the general pathology of the liver of rats exposed to IH. The messenger RNA (mRNA) expression levels of inflammatory cytokines, CYPs, nuclear factor-κB (NF-κB), and nuclear factors in the liver were measured by quantitative reverse transcription polymerase chain reaction.
RESULTSWe found inflammatory infiltrates in the liver of rats exposed to IH. The mRNA expression level of interleukin-1beta was increased in the liver of the IH-exposed rats (0.005 ± 0.001 vs. 0.038 ± 0.008, P = 0.042), whereas the mRNA expression level of Cyp1a2 was downregulated (0.022 ± 0.002 vs. 0.0050 ± 0.0002, P = 0.029). The hepatic level of transcription factor NF-κB was also reduced in the IH group relative to that in the control group, but the difference was not statistically significant and was parallel to the expression of the pregnane X receptor and constitutive androstane receptor. However, the decreased expression of the glucocorticoid receptor upon IH treatment was statistically significant (0.056 ± 0.012 vs. 0.032 ± 0.005, P = 0.035).
CONCLUSIONSThese results indicate a decrease in expression of hepatic CYPs and their regulator GR in rats exposed to IH. Therefore, this should be noted for patients on medication, especially those on drugs metabolized via the hepatic system, and close attention should be paid to the liver function of patients with OSA-associated IH.
6.Hepatic Cyp1a2 Expression Reduction during Inflammation Elicited in a Rat Model of Intermittent Hypoxia
Shi LI?XIA ; Wang XING ; Wu QI ; Sun XIN ; Wan ZHEN ; Li LI ; Li KUAN ; Li XUE ; Li YU ; Zhang QIU?YANG ; Wu JUN?PING ; Chen HUAI?YONG
Chinese Medical Journal 2017;(21):2585-2590
Background: Intermittent hypoxia (IH) is a key element of obstructive sleep apnea (OSA) that can lead to disorders in the liver. In this study, IH was established in a rat model to examine its effects on the expression of hepatic cytochrome P450 (CYP) and CYP regulators, including nuclear receptors. Methods: Hematoxylin and eosin staining was conducted to analyze the general pathology of the liver of rats exposed to IH. The messenger RNA (mRNA) expression levels of inflammatory cytokines, CYPs, nuclear factor?κB (NF?κB), and nuclear factors in the liver were measured by quantitative reverse transcription polymerase chain reaction. Results: We found inflammatory infiltrates in the liver of rats exposed to IH. The mRNA expression level of interleukin?1beta was increased in the liver of the IH?exposed rats (0.005 ± 0.001 vs. 0.038 ± 0.008, P = 0.042), whereas the mRNA expression level of Cyp1a2 was downregulated (0.022 ± 0.002 vs. 0.0050 ± 0.0002, P = 0.029). The hepatic level of transcription factor NF?κB was also reduced in the IH group relative to that in the control group, but the difference was not statistically significant and was parallel to the expression of the pregnane X receptor and constitutive androstane receptor. However, the decreased expression of the glucocorticoid receptor upon IH treatment was statistically significant (0.056 ± 0.012 vs. 0.032 ± 0.005, P = 0.035). Conclusions: These results indicate a decrease in expression of hepatic CYPs and their regulator GR in rats exposed to IH. Therefore, this should be noted for patients on medication, especially those on drugs metabolized via the hepatic system, and close attention should be paid to the liver function of patients with OSA?associated IH.
7.Primary Study on Noninvasive Detection of Vascular Function Based on Finger Temperature Change.
Qing DONG ; Xia LI ; Yungao WAN ; Gaoquan LU ; Xinxin WANG ; Kuan ZHANG
Journal of Biomedical Engineering 2016;33(1):144-148
By studying the relationship between fingertip temperature changes and arterial function during vascular reactivity test, we established a new non-invasive method for detecting vascular function, in order to provide an assistance for early diagnosis and prevention of cardiovascular diseases. We customized three modules respectively for blood occlusion, measurement of finger temperature and blood oxygen acquisition, and then we established the hardware of data acquisition system. And the software was programmed with Labview. Healthy subjects [group A, n = 24, (44.6 ± 9.0) years] and subjects with cardiovascular diseases [group B, n = 33, (57.2 ± 9.9) years)] were chosen for the study. Subject's finger temperature, blood oxygen and occlusion pressure of block side during and after unilateral arm brachial artery occlusion were recorded, as well as some other regular physiological indexes. By time-domain analysis, we extracted 12 parameters from fingertip temperature signal, including the initial temperature (Ti), temperature rebound (TR), the time of the temperature recovering to initial status (RIt) and other parameters from the finger temperature signal. We in the experiment also measured other regular physiological body mass index (BMI), systolic blood pressure (SBP), diastiolic blood pressure (DBP) and so on. Results showed that 8 parameters difference between the two group of data were significant. based on the statistical results. A discriminant function of vascular function status was established afterwards. We found in the study that the changes of finger temperature during unilateral arms brachial artery occlusion and open were closely related to vascular function. We hope that the method presented in this article could lay a foundation of early detection of vascular function.
Adult
;
Aged
;
Arteries
;
physiopathology
;
Blood Pressure
;
Cardiovascular Diseases
;
diagnosis
;
Fingers
;
Humans
;
Middle Aged
;
Skin Temperature
8.Effects of electro-acupuncture on expression of triggering receptor expressed on myeloid cells 1 in ankle joint synovial tissue of acute gouty arthritis rats.
Chao-Nan ZHANG ; Xue-Kuan HUANG ; Yan LUO ; Juan JIANG ; Lei WAN ; Ling WANG
Journal of Southern Medical University 2015;35(1):133-136
OBJECTIVETo investigate the effects of electro-acupuncture (EA) on the expression of triggering receptor expressed on myeloid cell (TREM)l in ankle joint synovial tissue of acute gouty arthritis (AGA) rats.
METHODSForty male SD rats were randomly divided into 4 groups: normal, AGA, medication and EA group, 10 rats in each group. AGA model was established by induced monosodium urate (MSU) method, except the normal group. Tow days before AGA model was established, normal and AGA groups were lavaged with normal saline (20 ml/kg), medication group was lavaged with colchicine solution (20 ml/kg), EA(1.5-2 Hz, D.-D.wave, 9v; 1-3 rnA) was applied to "Sanyinjiao" (SP6), "jiexi" (ST41) and "Kunlun" (BL60) for 20 min, once daily;continuously for 9 days. Then observed the changes in dysfunction, and the content of TNF-α and IL-lβ detected by ELISA, the expression of TREM-l detected by immunohistochemistry and western blot.
RESULTSCompared to the normal group, the AGA group of the dysfunction index increased significantly (P<0.01), the content of TNF-α and IL-lβ increased significantly (P<0.05), the expression of TREM-l in synovial tissue increased significantly (P<0.05); the medication and EA groups compared to the AGA group, the dysfunction index decreased significantly (P<0.01), the content of TNF-α and IL-lβ decreased significantly (P<0.05), the expression of TREM-l in synovial tissue decreased significantly (P<0.05); there were not statistically significant between the medication and EA group (P>0.05).
CONCLUSIONEA treating AGA may be through down-regulating the expression of TREM -1 in synovial tissue.
Animals ; Ankle Joint ; metabolism ; pathology ; Arthritis, Gouty ; metabolism ; therapy ; Electroacupuncture ; Interleukin-1beta ; metabolism ; Male ; Rats ; Rats, Sprague-Dawley ; Receptors, Immunologic ; metabolism ; Synovial Membrane ; metabolism ; Triggering Receptor Expressed on Myeloid Cells-1 ; Tumor Necrosis Factor-alpha ; metabolism
9.Chylous leakage after retroperitoneoscopic upper-pole heminephrectomy for duplex kidney.
Yueming WAN ; Zhengyan TANG ; Zhiyong CHEN ; Wen TIAN ; Lun XIAO ; Kuan LUO ; Dongjie LI
Journal of Central South University(Medical Sciences) 2012;37(4):405-407
OBJECTIVE:
To discuss management of chylous leakage after retroperitoneoscopic upper-pole heminephrectomy for duplex kidney.
METHODS:
Between November 2004 and Februar y 2011, 39 patients underwent retroperitoneoscopic upper-pole heminephrectomy for duplex kidney, of these 5 patients had chylous leakage. The ages of the patients ranged from 32 to 60 years (mean 42). All the patients were treated conservatively, and the therapeutic effects were observed.
RESULTS:
Delayed chylous leakage in 5 patients occurred 5-31 days after surgery, and leakage occurred in 4 of the same 5 patients during the first 2 post-operative years. Chylous leakage after retroperitoneoscopic upper-pole heminephrectomy for duplex kidney preferentially occurred at the left side of duplex kidney. All the patients healed under conservative treatment.
CONCLUSION
Chylous leakage typically occurs after left retroperitoneoscopic upper-pole heminephrectomy for duplex kidney, and can be prevented by improving surgical technique; it can be completely relieved by conservative management with satisfactory results.
Adult
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Chylous Ascites
;
etiology
;
prevention & control
;
therapy
;
Female
;
Humans
;
Kidney
;
abnormalities
;
surgery
;
Laparoscopy
;
adverse effects
;
methods
;
Male
;
Middle Aged
;
Nephrectomy
;
adverse effects
;
methods
;
Retroperitoneal Space
10.Moxifloxacin-warfarin Interaction
Kuan Leong Yew ; Wan Chieng Lee
The Medical Journal of Malaysia 2012;67(4):420-421
Warfarin has its origin as a rat poison and has become one
of the widely used anticoagulant drugs to prevent thrombosis and embolism. Many medications, foods and vegetables can interact with warfarin and affect its blood thinning effect in the body. The antibiotic, moxifloxacin official product monograph indicated no interaction with concomitant warfarin treatment as this fourth generation synthetic fluoroquinolone antibiotic does not share the same cytochrome P450 system metabolism pathway with warfarin.
However, we report a case of increased anticoagulant activity in a patient treated with moxifloxacin and warfarin causing prolonged hospital stay.


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