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Chi-Ho Lee,Mei-Zhen Wu,David Tak-Wai Lui,Darren Shing-Hei Chan,Carol Ho-Yi Fong,Sammy Wing-Ming Shiu,Ying Wong,Alan Chun-Hong Lee,Joanne King-Yan Lam,Yu-Cho Woo,Karen Siu-Ling Lam,Kelvin Kai-Hang Yiu 대한당뇨병학회 2022 Diabetes and Metabolism Journal Vol.46 No.6
Background: Insulin-treated patients with long duration of type 2 diabetes mellitus (T2DM) are at increased risk of ketoacidosis related to sodium-glucose co-transporter 2 inhibitor (SGLT2i). The extent of circulating ketone elevation in these patients remains unknown. We conducted this study to compare the serum ketone response between dapagliflozin, an SGLT2i, and sitagliptin, a dipeptidyl peptidase-4 inhibitor, among insulin-treated T2DM patients.Methods: This was a randomized, open-label, active comparator-controlled study involving 60 insulin-treated T2DM patients. Participants were randomized 1:1 for 24-week of dapagliflozin 10 mg daily or sitagliptin 100 mg daily. Serum β-hydroxybutyrate (BHB) levels were measured at baseline, 12 and 24 weeks after intervention. Comprehensive cardiometabolic assessments were performed with measurements of high-density lipoprotein cholesterol (HDL-C) cholesterol efflux capacity (CEC), vibration-controlled transient elastography and echocardiography.Results: Among these 60 insulin-treated participants (mean age 58.8 years, diabetes duration 18.2 years, glycosylated hemoglobin 8.87%), as compared with sitagliptin, serum BHB levels increased significantly after 24 weeks of dapagliflozin (P=0.045), with a median of 27% increase from baseline. Change in serum BHB levels correlated significantly with change in free fatty acid levels. Despite similar glucose lowering, dapagliflozin led to significant improvements in body weight (P=0.006), waist circumference (P=0.028), HDL-C (P=0.041), CEC (P=0.045), controlled attenuation parameter (P=0.007), and liver stiffness (P=0.022). Average E/e’, an echocardiographic index of left ventricular diastolic dysfunction, was also significantly lower at 24 weeks in participants treated with dapagliflozin (P=0.037).Conclusion: Among insulin-treated T2DM patients with long diabetes duration, compared to sitagliptin, dapagliflozin modestly increased ketone levels and was associated with cardiometabolic benefits.
Detecting small lung tumors in mouse models by refractive-index microradiology
Chien, Chia-Chi,Zhang, Guilin,Hwu, Y.,Liu, Ping,Yue, Weisheng,Sun, Jianqi,Li, Yan,Xue, Hongjie,Xu, Lisa X.,Wang, Chang Hai,Chen, Nanyow,Lu, Chien Hung,Lee, Ting-Kuo,Yang, Yuh-Cheng,Lu, Yen-Ta,Ching, Y Springer-Verlag 2011 ANALYTICAL AND BIOANALYTICAL CHEMISTRY Vol.401 No.3
민영철,김기태,Chi-Hung Yan,박용선,이석호,Dharam Vil Lal,Tatsuhiko Hasegawa,X. Z. Zhang,Yi-Jeng Kuan 한국천문학회 2014 Journal of The Korean Astronomical Society Vol.47 No.5
We study the physical and chemical properties of the molecular clump hosting a young stellar cluster, IRAS 20160+3636, which is believed to have formed via the ``collect and collapse'' process. Physical parameters of the UC Hii region associated with the embedded cluster are measured from the radio continuum observations. This source is found to be a typical Galactic UC Hii region, with a B0.5 type exciting star, if it is ionized by a single star. We derive a CN/HCN abundance ratio larger than 1 over this region, which may suggest that this clump is being affected by the UV radiation from the Hii region.
Kai Xu,Zhenchang Tang,Yan Zhang,Wanshu Li,Haiou Li,Lihui Wang,Li-Ming Liu,Hong-Hang Wang,Feng Chi,Xiaowen Zhang 한국물리학회 2019 Current Applied Physics Vol.19 No.10
Germanium dioxide (GeO2) aqueous solutions are facilely prepared and the corresponding anode buffer layers (ABLs) with solution process are demonstrated. Atomic force microscopy, X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy measurements show that solution-processed GeO2 behaves superior film morphology and enhanced work function. Using GeO2 as ABL of organic light-emitting diodes (OLEDs), the visible device with tris(8-hydroxy-quinolinato)aluminium as emitter gives maximum luminous efficiency of 6.5 cd/A and power efficiency of 3.5 lm/W, the ultraviolet device with 3-(4-biphenyl)-4-phenyl-5-tert-butylphenyl- 1,2,4-triazole as emitter exhibits short-wavelength emission with peak of 376 nm, full-width at halfmaximum of 42 nm, maximum radiance of 3.36 mW/cm2 and external quantum efficiency of 1.5%. The performances are almost comparable to the counterparts with poly (3,4-ethylenedioxythiophene):poly (styrenesulfonate) as ABL. The current, impedance, phase and capacitance as a function of voltage characteristics elucidate that the GeO2 ABL formed from appropriate concentration of GeO2 aqueous solution favors hole injection enhancement and accordingly promoting device performance.
Three Decades’ of Experience in the Surgical Management of Hepatoblastoma
( Patrick Ho Yu Chung ),( Kenneth Kak Yuen Wong ),( Albert Chi Yan Chan ),( Paul Kwong Hang Tam ) 대한간학회 2018 춘·추계 학술대회 (KASL) Vol.2018 No.1
Aims: This study reviewed the clinical outcomes in the surgical management of hepatoblastoma over the past 30 years. Methods: Pediatric patients with hepatoblastoma who underwent surgery (1985-2015) were reviewed (n=45). The outcomes of operation at different eras (I: 1985 to 1994; II: 1995 to 2003; III: 2004 to 2015) were compared. Results: The most frequent type of liver resection was extended right hepatectomy (n = 10, 22.2%). The overall operative morbidity and mortality rates were 22.2% (n=10) and 0%. The median follow up was 157 months. The overall 5-year disease free survival was 77.8% (n = 35). Comparing the three study eras (I: n = 8; II: n = 15; III: n = 22), there was no significant difference in the pre-op disease status. Patient operated in era III had the shortest operative duration (I: 423+/-132 vs II: 368 +/- 103 vs III: 296 +/- 84 minutes, P=0.03) as well as the least blood loss (I: 680+/180 vs II: 452 +/- 84 vs III: 250 +/-86 minutes, P=0.02). The incidence of major surgical complications was highest in era II (I: 25.0% vs II: 26.6% vs III: 18.2%, P=0.73). The 5-year disease free survival appeared to be the best in era III (I: 75.0% vs II: 73.3% vs III: 81.8%, P=0.61). Conclusions: With the advancement in perioperative care and surgical techniques, the operative outcome of hepatoblastoma has significantly improved in recent years.
Caitlin Fern Wee,Yao Hao Teo,Yao Neng Teo,Nicholas LX Syn,Ray Meng See,Shariel Leong,Alicia Swee Yan Yip,Zhi Xian Ong,Chi-Hang Lee,Mark Yan-Yee Chan,Kian-Keong Poh,Ching Ching Ong,Lynette LS Teo,Devin 한국심초음파학회 2022 Journal of Cardiovascular Imaging (J Cardiovasc Im Vol.30 No.3
Recent studies have shown that sodium/glucose cotransporter 2 (SGLT2) inhibitors might exert favourable changes on cardiac parameters as observed on cardiovascular imaging. We conducted a systematic review and meta-analysis to determine the effects of SGLT2 inhibitors on cardiac imaging parameters. Four electronic databases (PubMed, Embase, Cochrane, Scopus) were searched for studies in which the effects of SGLT2 inhibitors on cardiac imaging parameters were examined. Studies in which a population was administered SGLT2 inhibitors and analysed by echocardiography and/or cardiac magnetic resonance (CMR) imaging were included. Random-effects pair-wise meta-analysis models were utilized to summarize the studies. A total of 11 randomized controlled trials was included with a combined cohort of 910 patients. Comparing patients receiving SGLT2 inhibitors with subjects receiving placebo, the mean change in CMR-measured left ventricular mass (LVM) was −3.87 g (95% confidence interval [CI], −7.77 to 0.04), that in left ventricular end-systolic volume (LVESV) was −5.96 mL (95% CI, −10.52 to −1.41) for combined LVESV outcomes, that in left atrial volume index (LAVi) was −1.78 mL/m2 (95% CI, −3.01 to −0.55) for combined LAVi outcomes, and that in echocardiography-measured E/e′ was −0.73 (95% CI, −1.43 to −0.03). Between-group differences were not observed in LVM and LVESV after indexation. The only between-group difference that persisted was for LAVi. Treatment with SGLT2 inhibitors resulted in reduction in LAVi and E/e′ on imaging, indicating they might have an effect on outcomes associated with LV diastolic function.