1.Flattening the biological age curve by improving metabolic health: to taurine or not to taurine, that' s the question.
Kwok M HO ; Anna LEE ; William WU ; Matthew T V CHAN ; Lowell LING ; Jeffrey LIPMAN ; Jason ROBERTS ; Edward LITTON ; Gavin M JOYNT ; Martin WONG
Journal of Geriatric Cardiology 2023;20(11):813-823
The aging population is an important issue around the world especially in developed countries. Although medical advances have substantially extended life span, the same cannot be said for the duration of health span. We are seeing increasing numbers of elderly people who are frail and/or have multiple chronic conditions; all of these can affect the quality of life of the elderly population as well as increase the burden on the healthcare system. Aging is mechanistically related to common medical conditions such as diabetes mellitus, ischemic heart disease, cognitive decline, and frailty. A recently accepted concept termed 'Accelerated Biological Aging' can be diagnosed when a person's biological age-as measured by biomarkers of DNA methylation-is older than their corresponding chronological age. Taurine, a conditionally essential amino acid, has received much attention in the past few years. A substantial number of animal studies have provided a strong scientific foundation suggesting that this amino acid can improve cellular and metabolic health, including blood glucose control, so much that it has been labelled one of the 'longevity amino acids'. In this review article, we propose the rationale that an adequately powered randomized-controlled-trial (RCT) is needed to confirm whether taurine can meaningfully improve metabolic and microbiome health, and biological age. This trial should incorporate certain elements in order to provide the much-needed evidence to guide doctors, and also the community at large, to determine whether this promising and inexpensive amino acid is useful in improving human metabolic health.
2.The Relationship Between Lower Urinary Tract Symptoms and Osteoarthritis Symptoms Among Vendors in a Conventional Market
Hyo Jeong SONG ; M. Danet Lapiz BLUHM ; Moonju LEE ; Hyung Jee KIM ; Hong Sang MOON
International Neurourology Journal 2022;26(1):37-44
Purpose:
This study aimed to investigate lower urinary tract symptoms (LUTS) and the correlation between LUTS and osteoarthritis (OA) symptoms in the vendors working in a conventional market.
Methods:
This cross-sectional study was conducted on 153 vendors aged 40 and over from August 10th to September 8th, 2020, in a conventional market. Data were collected via the self-reported questionnaires. We assessed LUTS by International Prostate Symptom Score (IPSS) and OA symptoms by Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC).
Results:
The mean age of 153 subjects was 61.31±9.92 years old. The mean score of IPSS and WOMAC was 5.37±5.68 (range, 0–35) and 16.89±19.61 (range, 0–96). Fifty-one percent of subjects had urinary incontinence at least monthly. Twenty-four point two percent of subjects had moderate-to-severe LUTS which were defined as a score of IPSS ≥8. LUTS were positively correlated with OA symptoms (r=0.41, P<0.001).
Conclusions
The results showed that LUTS were associated with OA symptoms, and it also emphasized the need for vendors to be provided with a health education program to manage and prevent their LUTS and OA symptoms.
3.Effectiveness of an intervention to increase the knowledge, attitude, and practice regarding the return and disposal of unused medications
Pauline Lai Siew Mei ; Tan Kit Mun ; Lee Hong Gee ; Wong Yin Yen
Malaysian Family Physician 2021;16(1):56-63
This study aimed to evaluate the effectiveness of an educational intervention (Safe D.U.M.P)
to improve the knowledge, attitude, and practice regarding the return and disposal of unused
medications. Community-dwelling adults in Malaysia who could understand English were recruited
from two healthcare events. Participants were asked to fill out the validated Return and Disposal of
Unused Medications (ReDiUM) questionnaire (pre-intervention), view six educational intervention
posters on how to dispose of unused medications (Safe D.U.M.P), then answer the ReDiUM
questionnaire immediately after viewing the posters (post-intervention). A total of 390 out of 456
participants participated (response rate=85.5%). Most were female (71%) with a median age of 42
years. The overall knowledge of participants significantly increased from 60% to 80% (p<0.001).
However, no improvement was seen regarding their overall attitude and practice. This outcome was as
expected as it may be more difficult to improve attitude and practice (when compared to knowledge)
with a single educational session.
4. Gender Role, But Not Sex, Shapes Humans’ Susceptibility to Emotion
Jiajin YUAN ; Jiemin YANG ; Hong LI ; Dandan ZHANG ; Quanshan LONG ; Tatia M. C. LEE ; Dandan ZHANG ; Dandan ZHANG
Neuroscience Bulletin 2021;37(2):201-216
It is unknown whether the famous sex-related difference in emotion processing is accounted for by biological sex, gender role, or their interaction. To clarify the issue, in Study 1 we recorded event-related potentials in response to negative and positive images of diverse intensities when 47 masculine (26 males) and 47 feminine (22 males) subjects performed a non-emotional task. The occipital P1 and N1 amplitudes were larger in women than in men, while feminine subjects showed larger N1 amplitudes than masculine subjects, regardless of sex. Moreover, feminine subjects showed enhanced frontocentral N2 (210–270 ms) amplitudes for highly and mildly negative than for neutral stimuli, while masculine subjects showed an emotion effect only for highly negative stimuli. The feminine-specific effect for mildly negative stimuli was positively correlated to the feminine score, and this correlation was located to the anterior cingulate and the superior and medial frontal gyri. Furthermore, feminine but not masculine subjects showed enhanced parietal P3 (330–560 ms) amplitudes for highly and mildly positive than for neutral stimuli, an effect positively related to the feminine score and localized to the precuneus, posterior cingulate, and superior temporal gyrus. Machine learning analyses verified that single-trial N2 and P3 amplitudes of feminine subjects reliably discriminated the intensity of negative and positive stimuli, respectively. For ecological considerations, in Study 2 we used an observational approach (n = 300) and confirmed that feminine gender role, rather than biological sex, predicted individual differences in daily experience of emotion-related psychopathological symptoms. These findings provide solid evidence for the critical impact of gender role rather than sex on emotional susceptibility.
5.Macular Microvasculature in High Myopia without Pathologic Changes: An Optical Coherence Tomography Angiography Study
Chan Hong MIN ; Heba M. AL-QATTAN ; Joo Yong LEE ; June-Gone KIM ; Young Hee YOON ; Yoon Jeon KIM
Korean Journal of Ophthalmology 2020;34(2):106-112
Purpose:
To investigate macular microvasculature changes using optical coherence tomography angiography (OCTA) and analyze their correlation with the structural parameters in highly myopic eyes.
Methods:
We measured the area of the foveal avascular zone (FAZ) and the parafoveal vessel density in the superficial and deep retinal plexuses using OCTA. The magnification effect of the FAZ area was corrected using Bennett's formula. Retinal thickness measured at each corresponding area of the OCTA parameters, subfoveal choroidal thickness, and ocular characteristics were reviewed, and the relationships between the microvasculature measurements and the ocular structural characteristics were explored.
Results:
Fifty-two eyes with high myopia and 52 normal sex- and age-matched controls were included in the analysis. The FAZ area was significantly larger in the myopic eyes (p = 0.023). The superficial parafoveal vascular density was significantly decreased (p= 0.007) in the myopic eyes compared with the normal eyes, whereas there was no significant difference in the deep parafoveal vascular density (p = 0.226). Regarding the retinal thickness, only the parafoveal inner retinal thickness was significantly smaller in the myopic eyes than in the normal eyes (p = 0.023). The FAZ and subfoveal choroidal thickness were significantly correlated with the axial length, and the parafoveal inner retinal thickness was significantly correlated with the superficial parafoveal vascular density (all p < 0.05).
Conclusions
The FAZ was enlarged and the parafoveal vascular density was reduced in the highly myopic eyes. The decrease was prominent in the superficial capillary plexuses and well-correlated with the retinal thickness profiles. The macular microvascular network alteration may be attributed to the ocular axial elongation that occurs with myopia.
6.A Child of Severe Mycoplasma pneumoniae pneumonia with Multiple Organ Failure Treated with ECMO and CRRT
Woojin HWANG ; Yoonjin LEE ; Eunjee LEE ; Jiwon M LEE ; Hong Ryang KIL ; Jae Hyeon YU ; Eun Hee CHUNG
Pediatric Infection & Vaccine 2019;26(1):71-79
Mycoplasma pneumoniae (MP) is the most common causative agent of community-acquired pneumonia in school-aged children. An 8-year-old boy who had been diagnosed with autism looked severely ill when he presented to our hospital due to dyspnea and lethargy. He had fever and cough 7 days prior to hospitalization. He had signs and symptoms of severe respiratory distress. The percutaneous oxygen saturation was 88% at high oxygen supply. Chest radiography showed diffusely increased opacity with moderate pleural effusion. He was intubated immediately and admitted to the intensive care unit. Under the clinical impression of mycoplasmal pneumonia, intravenous clarithromycin was started. Laboratory findings showed leukocytosis, hepatitis, decreased renal function, and presence of serum MP immunoglobulin (Ig) M (+) IgG (+) and sputum MP polymerase chain reaction (+). On hospital day 2, the patient developed multiple organ failure with acute respiratory distress syndrome (ARDS). Veno-venous extracorporeal membrane oxygenation (ECMO) was performed with continuous renal replacement therapy (CRRT) and was weaned successfully. This is the first reported case of an ARDS due to MP infection complicated by multiple organ failure that was successfully treated with ECMO and CRRT in South Korea.
Autistic Disorder
;
Child
;
Clarithromycin
;
Cough
;
Dyspnea
;
Extracorporeal Membrane Oxygenation
;
Fever
;
Hepatitis
;
Hospitalization
;
Humans
;
Immunoglobulin G
;
Immunoglobulins
;
Intensive Care Units
;
Korea
;
Lethargy
;
Leukocytosis
;
Male
;
Multiple Organ Failure
;
Mycoplasma pneumoniae
;
Mycoplasma
;
Oxygen
;
Pleural Effusion
;
Pneumonia
;
Pneumonia, Mycoplasma
;
Polymerase Chain Reaction
;
Radiography
;
Renal Replacement Therapy
;
Respiratory Distress Syndrome, Adult
;
Sputum
;
Thorax
7.A Feasibility Study for Diagnosis of Latent Tuberculosis Infection Using an IGRA Point-of-Care Platform in South Korea
Yun Gyoung HUR ; Ji Young HONG ; Dong Hwan CHOI ; Ahreum KIM ; So yeong PARK ; Minsuk KWON ; Kyungjoon KANG ; Jeong Min LEE ; Hazel M DOCKRELL ; Yoonsuk LEE ; Hoodon JOO ; Sang Nae CHO
Yonsei Medical Journal 2019;60(4):375-380
PURPOSE: This study aimed to evaluate ichroma™ IGRA-TB, a novel point-of-care platform for assaying IFN-γ release, and to compare it with QuantiFERON-TB Gold In-Tube (QFT-GIT) for identifying Mycobacterium tuberculosis (M. tb) infection. MATERIALS AND METHODS: We recruited 60 healthy subjects, and blood samples were obtained in QFT-GIT blood collection tubes. The blood collection tubes were incubated at 37℃, and culture supernatant was harvested after 18–24 hours. IFN-γ responses were assessed by the ichroma™ IGRA-TB cartridge and the QFT-GIT IFN-γ enzyme-linked immunosorbent assay. Three active TB patients were recruited as a positive control for M. tb infection. RESULTS: The area under the receiver operating characteristic curve of the ichroma™ IGRA-TB test for differentiating between infected and non-infected individuals was 0.9706 (p < 0.001). Inconsistent positivity between the two tests was found in three participants who showed weak positive IFN-γ responses ( < 1.0 IU/mL) with QFT-GIT. However, the two tests had excellent agreement (95.2%, κ=0.91, p < 0.001), and a very strong positive correlation was observed between the IFN-γ values of both tests (r=0.91, p < 0.001). CONCLUSION: The diagnostic accuracy demonstrated in this study indicates that the ichroma™ IGRA-TB test could be used as a rapid diagnostic method for detecting latent TB infection. It may be particularly beneficial in resource-limited places that require cost-effective laboratory diagnostics.
Diagnosis
;
Enzyme-Linked Immunosorbent Assay
;
Feasibility Studies
;
Healthy Volunteers
;
Humans
;
Korea
;
Latent Tuberculosis
;
Methods
;
Mycobacterium tuberculosis
;
Point-of-Care Systems
;
ROC Curve
;
Tuberculosis
8.Temporal Changes in Care Processes and Outcomes for Endovascular Treatment of Acute Ischemic Stroke: Retrospective Registry Data from Three Korean Centers.
Jin Soo LEE ; Seong Joon LEE ; Ji Man HONG ; Jin Wook CHOI ; Jeong Ho HONG ; Hyuk Won CHANG ; Chang Hyun KIM ; Yong Won KIM ; Dong Hun KANG ; Yong Sun KIM ; Bruce OVBIAGELE ; Andrew M DEMCHUK ; Yang Ha HWANG ; Sung Il SOHN
Neurointervention 2018;13(1):2-12
BACKGROUND AND PURPOSE: The purpose of the current study is to evaluate the influence of temporal patterns related to the availability of new endovascular treatment (EVT) devices on care processes and outcomes among patients with AIS. MATERIALS AND METHODS: We enrolled 720 consecutive patients (January 2011 to May 2016) in a retrospective registry, ASIAN KR, from three Korean hospitals, who received EVT for acute ischemic stroke (AIS) caused by cervicocephalic arterial occlusions. We performed period-to-period analyses based on stent retriever reimbursement and the availability of second-generation direct-aspiration devices (Period 1: January 2011–July 2014 vs. Period 2: August 2014–May 2016); time metrics and outcomes were compared when the onset-to-puncture time was <720 min among patients with EVT for intracranial occlusion. RESULTS: Period 2 had better post-EVT outcomes (3-month modified Rankin Scale 0–2 or equal to prestroke score, 48.3% vs. 60.2%, P=0.004), more successful reperfusion rates (modified Treatment In Cerebral Ischemia 2b–3, 74.2% vs. 82.2%, P=0.019), fewer subarachnoid hemorrhages (modified Fisher grade 3–4, 5.5% vs. 2.0%, P=0.034) and lower hemorrhagic transformation rates (any intracerebral hemorrhage, 35.3 vs. 22.7%, P=0.001) than Period 1. Compared to Period 1, Period 2 had a shorter door-to-puncture time (median 109 vs. 90 min, P<0.001), but longer onset-to-door time (129 vs. 143 min, P=0.057). CONCLUSION: Recent temporal improvements in post-EVT AIS outcomes in Korea are likely due to a combination of enhanced hospital care processes and administration of newer thrombectomy devices.
Asian Continental Ancestry Group
;
Brain Ischemia
;
Cerebral Hemorrhage
;
Cerebral Infarction
;
Humans
;
Korea
;
Learning Curve
;
Reperfusion
;
Retrospective Studies*
;
Stents
;
Stroke*
;
Subarachnoid Hemorrhage
;
Thrombectomy
;
Treatment Outcome
9.Iodine nutritional status and awareness of iodine deficiency among adults, including pregnant women, in Tuguegarao, Philippines.
Young Sik CHOI ; Kwang Hyuk SEOK ; Jong Jin LEE ; Gina Jieun HONG ; Pablo M AFIDCHAO ; Bu Kyung KIM ; Jee Yeong JEONG
Kosin Medical Journal 2018;33(1):64-74
OBJECTIVES: Iodine deficiency causes multiple health problems. Previously we reported that 96% of high school students in Tuguegarao, Philippines had adequate iodine levels. However, iodine deficiency-associated problems remain among adults in the Philippines. Therefore, we evaluated iodine nutritional status and goiter prevalence among adults, including pregnant women, in Tuguegarao, Philippines. METHODS: A total of 245 adults, including 31 pregnant women, provided samples for urinary iodine analysis, and all pregnant women completed a questionnaire about iodine deficiency. RESULTS: The median urinary iodine level was 164.0 ± 138.4 µg/L; 38.4% of the participants were iodine deficient, according to the International Council for Control of Iodine Deficiency Disorders (ICCIDD) criteria. No severe iodine deficiency was observed. Among the 31 pregnant women, 24 (77.5%) fell into the iodine deficient category defined by a stricter World Health Organization (WHO) guideline, in which iodine deficiency is considered when urinary iodine levels are below 150 µg/L. Almost half (42%) of the pregnant women were unaware of the harmful effects of iodine deficiency on the human body and their fetus. CONCLUSIONS: Although iodine nutritional status in the Philippines has improved, iodine deficiency still exists among adults, especially among pregnant women. Therefore, our study strongly suggests that a better strategy should be established to monitor iodine nutritional status among adults continually, and to focus on populations susceptible to iodine deficiency, including pregnant women and women of reproductive age, to achieve the total elimination of iodine deficiency.
Adult*
;
Female
;
Fetus
;
Goiter
;
Human Body
;
Humans
;
Iodine*
;
Nutritional Status*
;
Philippines*
;
Pregnant Women*
;
Prevalence
;
World Health Organization
10.Comparison of the Effects of Ezetimibe-Statin Combination Therapy on Major Adverse Cardiovascular Events in Patients with and without Diabetes: A Meta-Analysis.
Namki HONG ; Yong ho LEE ; Kenichi TSUJITA ; Jorge A GONZALEZ ; Christopher M KRAMER ; Tomas KOVARNIK ; George N KOUVELOS ; Hiromichi SUZUKI ; Kyungdo HAN ; Chan Joo LEE ; Sung Ha PARK ; Byung Wan LEE ; Bong Soo CHA ; Eun Seok KANG
Endocrinology and Metabolism 2018;33(2):219-227
BACKGROUND: Ezetimibe-statin combination therapy has been found to reduce low density lipoprotein cholesterol levels and the risk of major adverse cardiovascular events (MACEs) in large trials. We sought to examine the differential effect of ezetimibe on MACEs when added to statins according to the presence of diabetes. METHODS: Randomized clinical trials with a sample size of at least 50 participants and at least 24 weeks of follow-up that compared ezetimibe-statin combination therapy with a statin- or placebo-controlled arm and reported at least one MACE, stratified by diabetes status, were included in the meta-analysis and meta-regression. RESULTS: A total of seven trials with 28,191 enrolled patients (mean age, 63.6 years; 75.1% men; 7,298 with diabetes [25.9%]; mean follow-up, 5 years) were analysed. MACEs stratified by diabetes were obtained from the published data (two trials) or through direct contact (five trials). No significant heterogeneity was observed among studies (I 2=14.7%, P=0.293). Ezetimibe was associated with a greater reduction of MACE risk in subjects with diabetes than in those without diabetes (pooled relative risk, 0.84 vs. 0.93; P heterogeneity=0.012). In the meta-regression analysis, the presence of diabetes was associated with a greater reduction of MACE risk when ezetimibe was added to statins (β=0.87, P=0.038). CONCLUSION: Ezetimibe-statin combination therapy was associated with greater cardiovascular benefits in patients with diabetes than in those without diabetes. Our findings suggest that ezetimibe-statin combination therapy might be a useful strategy in patients with diabetes at a residual risk of MACEs.
Arm
;
Cholesterol, LDL
;
Diabetes Mellitus
;
Ezetimibe
;
Follow-Up Studies
;
Humans
;
Hydroxymethylglutaryl-CoA Reductase Inhibitors
;
Male
;
Myocardial Infarction
;
Population Characteristics
;
Sample Size
;
Stroke


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