1.Air pollution exposure associated with decline rates in skeletal muscle mass and grip strength and increase rate in body fat in elderly: a 5-year follow-up study.
Chi-Hsien CHEN ; Li-Ying HUANG ; Kang-Yun LEE ; Chih-Da WU ; Shih-Chun PAN ; Yue Leon GUO
Environmental Health and Preventive Medicine 2025;30():56-56
BACKGROUND:
The effect of air pollution on annual change rates in grip strength and body composition in the elderly is unknown.
OBJECTIVES:
This study evaluated the effects of long-term exposure to ambient air pollution on change rates of grip strength and body composition in the elderly.
METHODS:
In the period 2016-2020, grip strength and body composition were assessed and measured 1-2 times per year in 395 elderly participants living in the Taipei basin. Exposure to ambient fine particulate matters (PM2.5), nitric dioxide (NO2), and ozone (O3) from 2015 to 2019 was estimated using a hybrid Kriging/Land-use regression model. In addition, long-term exposure to carbon monoxide (CO) was estimated using an ordinary Kriging approach. Associations between air pollution exposures and annual changes in health outcomes were analyzed using linear mixed-effects models.
RESULTS:
An inter-quartile range (4.1 µg/m3) increase in long-term exposure to PM2.5 was associated with a faster decline rate in grip strength (-0.16 kg per year) and skeletal muscle mass (-0.14 kg per year), but an increase in body fat mass (0.21 kg per year). The effect of PM2.5 remained robust after adjustment for NO2, O3 and CO exposure. In subgroup analysis, the PM2.5-related decline rate in grip strength was greater in participants with older age (>70 years) or higher protein intake, whereas in skeletal muscle mass, the decline rate was more pronounced in participants having a lower frequency of moderate or strenuous exercise. The PM2.5-related increase rate in body fat mass was higher in participants having a lower frequency of strenuous exercise or soybean intake.
CONCLUSIONS
Among the elderly, long-term exposure to ambient PM2.5 is associated with a faster decline in grip strength and skeletal muscle mass, and an increase in body fat mass. Susceptibility to PM2.5 may be influenced by age, physical activity, and dietary protein intake; however, these modifying effects vary across different health outcomes, and further research is needed to clarify their mechanisms and consistency.
Humans
;
Hand Strength
;
Aged
;
Male
;
Female
;
Environmental Exposure/adverse effects*
;
Follow-Up Studies
;
Taiwan
;
Air Pollution/adverse effects*
;
Particulate Matter/adverse effects*
;
Muscle, Skeletal/drug effects*
;
Air Pollutants/adverse effects*
;
Ozone/adverse effects*
;
Aged, 80 and over
;
Adipose Tissue/drug effects*
;
Body Composition/drug effects*
;
Nitrogen Dioxide/adverse effects*
2.Taiwan Association for the Study of the Liver-Taiwan Society of Cardiology Taiwan position statement for the management of metabolic dysfunction- associated fatty liver disease and cardiovascular diseases
Pin-Nan CHENG ; Wen-Jone CHEN ; Charles Jia-Yin HOU ; Chih-Lin LIN ; Ming-Ling CHANG ; Chia-Chi WANG ; Wei-Ting CHANG ; Chao-Yung WANG ; Chun-Yen LIN ; Chung-Lieh HUNG ; Cheng-Yuan PENG ; Ming-Lung YU ; Ting-Hsing CHAO ; Jee-Fu HUANG ; Yi-Hsiang HUANG ; Chi-Yi CHEN ; Chern-En CHIANG ; Han-Chieh LIN ; Yi-Heng LI ; Tsung-Hsien LIN ; Jia-Horng KAO ; Tzung-Dau WANG ; Ping-Yen LIU ; Yen-Wen WU ; Chun-Jen LIU
Clinical and Molecular Hepatology 2024;30(1):16-36
Metabolic dysfunction-associated fatty liver disease (MAFLD) is an increasingly common liver disease worldwide. MAFLD is diagnosed based on the presence of steatosis on images, histological findings, or serum marker levels as well as the presence of at least one of the three metabolic features: overweight/obesity, type 2 diabetes mellitus, and metabolic risk factors. MAFLD is not only a liver disease but also a factor contributing to or related to cardiovascular diseases (CVD), which is the major etiology responsible for morbidity and mortality in patients with MAFLD. Hence, understanding the association between MAFLD and CVD, surveillance and risk stratification of MAFLD in patients with CVD, and assessment of the current status of MAFLD management are urgent requirements for both hepatologists and cardiologists. This Taiwan position statement reviews the literature and provides suggestions regarding the epidemiology, etiology, risk factors, risk stratification, nonpharmacological interventions, and potential drug treatments of MAFLD, focusing on its association with CVD.
3.Management of ulcerative colitis in Taiwan: consensus guideline of the Taiwan Society of Inflammatory Bowel Disease updated in 2023
Hsu-Heng YEN ; Jia-Feng WU ; Horng-Yuan WANG ; Ting-An CHANG ; Chung-Hsin CHANG ; Chen-Wang CHANG ; Te-Hsin CHAO ; Jen-Wei CHOU ; Yenn-Hwei CHOU ; Chiao-Hsiung CHUANG ; Wen-Hung HSU ; Tzu-Chi HSU ; Tien-Yu HUANG ; Tsung-I HUNG ; Puo-Hsien LE ; Chun-Che LIN ; Chun-Chi LIN ; Ching-Pin LIN ; Jen-Kou LIN ; Wei-Chen LIN ; Yen-Hsuan NI ; Ming-Jium SHIEH ; I-Lun SHIH ; Chia-Tung SHUN ; Tzung-Jiun TSAI ; Cheng-Yi WANG ; Meng-Tzu WENG ; Jau-Min WONG ; Deng-Chyang WU ; Shu-Chen WEI
Intestinal Research 2024;22(3):213-249
Ulcerative colitis (UC) is a chronic inflammation of the gastrointestinal tract and is characterized by alternating periods of inflammation and remission. Although UC incidence is lower in Taiwan than in Western countries, its impact remains considerable, demanding updated guidelines for addressing local healthcare challenges and patient needs. The revised guidelines employ international standards and recent research, emphasizing practical implementation within the Taiwanese healthcare system. Since the inception of the guidelines in 2017, the Taiwan Society of Inflammatory Bowel Disease has acknowledged the need for ongoing revisions to incorporate emerging therapeutic options and evolving disease management practices. This updated guideline aims to align UC management with local contexts, ensuring comprehensive and context-specific recommendations, thereby raising the standard of care for UC patients in Taiwan. By adapting and optimizing international protocols for local relevance, these efforts seek to enhance health outcomes for patients with UC.
4.Management of Crohn’s disease in Taiwan: consensus guideline of the Taiwan Society of Inflammatory Bowel Disease updated in 2023
Jia-Feng WU ; Hsu-Heng YEN ; Horng-Yuan WANG ; Ting-An CHANG ; Chung-Hsin CHANG ; Chen-Wang CHANG ; Te-Hsin CHAO ; Jen-Wei CHOU ; Yenn-Hwei CHOU ; Chiao-Hsiung CHUANG ; Wen-Hung HSU ; Tzu-Chi HSU ; Tien-Yu HUANG ; Tsung-I HUNG ; Puo-Hsien LE ; Chun-Che LIN ; Chun-Chi LIN ; Ching-Pin LIN ; Jen-Kou LIN ; Wei-Chen LIN ; Yen-Hsuan NI ; Ming-Jium SHIEH ; I-Lun SHIH ; Chia-Tung SHUN ; Tzung-Jiun TSAI ; Cheng-Yi WANG ; Meng-Tzu WENG ; Jau-Min WONG ; Deng-Chyang WU ; Shu-Chen WEI
Intestinal Research 2024;22(3):250-285
Crohn’s disease (CD) is a chronic, fluctuating inflammatory condition that primarily affects the gastrointestinal tract. Although the incidence of CD in Taiwan is lower than that in Western countries, the severity of CD presentation appears to be similar between Asia and the West. This observation indicates the urgency for devising revised guidelines tailored to the unique reimbursement system, and patient requirements in Taiwan. The core objectives of these updated guidelines include the updated treatment choices and the integration of the treat-to-target strategy into CD management, promoting the achievement of deep remission to mitigate complications and enhance the overall quality of life. Given the diversity in disease prevalence, severity, insurance policies, and access to medical treatments in Taiwan, a customized approach is imperative for formulating these guidelines. Such tailored strategies ensure that international standards are not only adapted but also optimized to local contexts. Since the inception of its initial guidelines in 2017, the Taiwan Society of Inflammatory Bowel Disease (TSIBD) has acknowledged the importance of continuous revisions for incorporating new therapeutic options and evolving disease management practices. The latest update leverages international standards and recent research findings focused on practical implementation within the Taiwanese healthcare system.
5.Watch Out for the Early Killers: Imaging Diagnosis of Thoracic Trauma
Yon-Cheong WONG ; Li-Jen WANG ; Rathachai KAEWLAI ; Cheng-Hsien WU
Korean Journal of Radiology 2023;24(8):752-760
Radiologists and trauma surgeons should monitor for early killers among patients with thoracic trauma, such as tension pneumothorax, tracheobronchial injuries, flail chest, aortic injury, mediastinal hematomas, and severe pulmonary parenchymal injury. With the advent of cutting-edge technology, rapid volumetric computed tomography of the chest has become the most definitive diagnostic tool for establishing or excluding thoracic trauma. With the notion of “time is life” at emergency settings, radiologists must find ways to shorten the turnaround time of reports. One way to interpret chest findings is to use a systemic approach, as advocated in this study. Our interpretation of chest findings for thoracic trauma follows the acronym “ABC-Please” in which “A” stands for abnormal air, “B” stands for abnormal bones, “C” stands for abnormal cardiovascular system, and “P” in “Please” stands for abnormal pulmonary parenchyma and vessels. In the future, utilizing an artificial intelligence software can be an alternative, which can highlight significant findings as “warm zones” on the heatmap and can re-prioritize important examinations at the top of the reading list for radiologists to expedite the final reports.
8.The Effect of Glycemic Status on Kidney Stone Disease in Patients with Prediabetes.
Tzu Hsien LIEN ; Jin Shang WU ; Yi Ching YANG ; Zih Jie SUN ; Chih Jen CHANG
Diabetes & Metabolism Journal 2016;40(2):161-166
BACKGROUND: While the evidence supporting a positive association between diabetes mellitus and kidney stone disease (KSD) is solid, studies examining the association between impaired fasting glucose (IFG) and KSD show inconsistent results. Currently, there are no studies examining the relationship between impaired glucose tolerance (IGT) and KSD. The objective of this study is to investigate the effects of different glycemic statuses on KSD. The results may help to motivate patients with diabetes to conform to treatment regimens. METHODS: We conducted a cross sectional study of a population that underwent health check-ups between January 2000 and August 2009 at the Health Evaluation Center of National Cheng Kung University Hospital. A total of 14,186 subjects were enrolled. The following categories of glycemic status were used according to the criteria of the 2009 American Diabetes Association: normal glucose tolerance, isolated IGT, isolated IFG, combined IFG/IGT, and diabetes. The existence of KSD was evaluated using renal ultrasonography, and the presence of any hyperechoic structures causing acoustic shadowing was considered to be indicative of KSD. RESULTS: The prevalence of KSD was 7.4% (712/9,621), 9.3% (163/1,755), 10.8% (78/719), 12.0% (66/548), and 11.3% (174/1,543) in subjects with NGT, isolated IGT, isolated IFG, combined IFG/IGT, and diabetes, respectively. Isolated IFG, combined IFG/IGT, and diabetes were associated with KSD after adjusting for other clinical variables, but isolated IGT was not. Age (41 to 64 years vs. ≤40 years, ≥65 years vs. ≤40 years), male gender, hypertension, and hyperuricemia were also independently associated with KSD. CONCLUSION: Isolated IFG, combined IFG/IGT, and diabetes, but not isolated IGT, were associated with a higher risk of KSD.
Acoustics
;
Diabetes Mellitus
;
Fasting
;
Glucose
;
Glucose Intolerance
;
Humans
;
Hypertension
;
Hyperuricemia
;
Kidney Calculi*
;
Kidney*
;
Male
;
Prediabetic State*
;
Prevalence
;
Shadowing (Histology)
;
Ultrasonography
9.HIV-associated parkinsonism reversed with antiretroviral therapy
Yu-Wen Cheng ; Chin-Hsien Lin ; Ruey-Meei Wu
Neurology Asia 2014;19(2):199-203
Human immunodeficiency virus (HIV) infection can cause variable movement disorders, including parkinsonism. HIV-related parkinsonism usually responds well to highly-active antiretroviral therapy (HAART), suggesting a possible reversible dysfunction of the dopaminergic system. We report the case of a 42-year-old man who presented with rapidly progressive symmetric parkinsonism, cognitive decline, and loss of postural reflex as the initial manifestation of HIV infection. A significant improvement of his parkinsonism after HAART demonstrates a potentially reversible dopaminergic system dysfunction secondary to HIV infection. A normal 99mTc-TRODAT-1 SPECT image after HAART treatment paralleled the clinical improvement in extrapyramidal symptoms. Early identification of HIV-related parkinsonism, especially in patients with symmetrical akinetic-rigidity and early loss of posture reflex, is important for its potential reversibility with HAART therapy.
10.Mesenteric Vascular Occlusion: Comparison of Ancillary CT Findings between Arterial and Venous Occlusions and Independent CT Findings Suggesting Life-Threatening Events.
Yon Cheong WONG ; Cheng Hsien WU ; Li Jen WANG ; Huan Wu CHEN ; Being Chuan LIN ; Chen Chih HUANG
Korean Journal of Radiology 2013;14(1):38-44
OBJECTIVE: To compare the ancillary CT findings between superior mesenteric artery thromboembolism (SMAT) and superior mesenteric vein thrombosis (SMVT), and to determine the independent CT findings of life-threatening mesenteric occlusion. MATERIALS AND METHODS: Our study was approved by the institution review board. We included 43 patients (21 SMAT and 22 SMVT between 1999 and 2008) of their median age of 60.0 years, and retrospectively analyzed their CT scans. Medical records were reviewed for demographics, management, surgical pathology diagnosis, and outcome. We compared CT findings between SMAT and SMVT groups. Multivariate analysis was conducted to determine the independent CT findings of life-threatening mesenteric occlusion. RESULTS: Of 43 patients, 24 had life-threatening mesenteric occlusion. Death related to mesenteric occlusion was 32.6%. A thick bowel wall (p < 0.001), mesenteric edema (p < 0.001), and ascites (p = 0.009) were more frequently associated with SMVT, whereas diminished bowel enhancement (p = 0.003) and paralytic ileus (p = 0.039) were more frequent in SMAT. Diminished bowel enhancement (OR = 20; p = 0.007) and paralytic ileus (OR = 16; p = 0.033) were independent findings suggesting life-threatening mesenteric occlusion. CONCLUSION: The ancillary CT findings occur with different frequencies in SMAT and SMVT. However, the independent findings indicating life-threatening mesenteric occlusion are diminished bowel wall enhancement and paralytic ileus.
Arteries
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Contrast Media/diagnostic use
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Female
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Humans
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Iohexol/diagnostic use
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Male
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Mesenteric Vascular Occlusion/mortality/pathology/*radiography
;
Middle Aged
;
Multivariate Analysis
;
Retrospective Studies
;
Risk Factors
;
Tomography, X-Ray Computed/*methods
;
Veins

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