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Lee Shi Hui,Selina Hui Men Chin,Charissa Goh,Lin Xiao Hui,Manisha Mathur,Timothy Lim Yong Kuei,Felicia Chin Hui Xian 대한산부인과학회 2021 Obstetrics & Gynecology Science Vol.64 No.3
ObjectiveTo determine the risk factors for occult endometrial atypia and malignancy in patients diagnosed with non-atypicalendometrial hyperplasia (NEH) on endometrial biopsy. MethodsAll new cases of NEH diagnosed between April 2015 and March 2016 at KK Women’s and Children’s Hospital, whounderwent hysterectomy as first-line treatment, were included in the study. Patients with a history of endometrialhyperplasia or malignancy were excluded from the study. Patient demographics (e.g., age, parity, body mass index[BMI]), medical history, and clinical presentation were obtained for analysis. ResultsIn total, 262 patients were diagnosed with NEH, of which 18.3% (n=48) underwent hysterectomy as first-linemanagement. The average time to surgery was 77.0±35.7 days. All cases were diagnosed by dilation and curettage,and hysteroscopy. The mean age was 51 years, and the mean BMI was 26.9±5.8 kg/m2. Histology from thehysterectomy specimen showed 9 (18.8%) patients with atypical hyperplasia and 2 (4.2%) with grade 1, stage 1Aendometrioid adenocarcinoma. Patients with higher grade final pathology had significantly lower median parity(1 vs. 2, P=0.039), higher mean BMI (30.1±6.5 vs. 25.9±5.3 kg/m2, P=0.033), and BMI ≥30 kg/m2 (54.5% vs. 13.5%,P=0.008, odds ratio 7.68), compared to patients whose final histology showed NEH or no residual hyperplasia. ConclusionOccult endometrial atypia and malignancy were found in 18.8% and 4.2% of patients with an initial diagnosis of NEH,respectively. High BMI and low parity were identified as significant risk factors for high-grade endometrial lesions inpatients with NEH.
Lee, Su-Yeon,Lee, Hui-Young,Song, Jae-Hwi,Kim, Goon-Tae,Jeon, Suwon,Song, Yoo-Jeong,Lee, Jae Sung,Hur, Jang-Ho,Oh, Hyun Hee,Park, Shi-Young,Shim, Soon-Mi,Yoo, Hyun Joo,Lee, Byung Cheon,Jiang, Xian-Che American Diabetes Association 2017 Diabetes Vol.66 No.10
<P>Sphingolipids have been implicated in the etiology of chronic metabolic diseases. Here, we investigated whether sphingolipid biosynthesis is associated with the development of adipose tissues and metabolic diseases. SPTLC2, a subunit of serine palmitoyltransferase, was transcriptionally upregulated in the adipose tissues of obese mice and in differentiating adipocytes. Adipocyte-specific SPTLC2-deficient (aSPTLC2 KO) mice had markedly reduced adipose tissue mass. Fatty acids that were destined for the adipose tissue were instead shunted to liver and caused hepatosteatosis. This impaired fat distribution caused systemic insulin resistance and hyperglycemia, indicating severe lipodystrophy. Mechanistically, sphingosine 1-phosphate (S1P) was reduced in the adipose tissues of aSPTLC2 KO mice, and this inhibited adipocyte proliferation and differentiation via the downregulation of S1P receptor 1 and decreased activity of the peroxisome proliferator-activator receptor gamma. In addition, downregulation of SREBP (sterol regulatory element-binding protein)-1c prevented adipogenesis of aSPTLC2 KO adipocytes. Collectively, our observations suggest that the tight regulation of de novo sphingolipid biosynthesis and S1P signaling plays an important role in adipogenesis and hepatosteatosis.</P>
Bioinspired Synthesis of Chiral 3,4-Dihydropyranones via S-to-O Acyl-Transfer Reactions
Jin, Hui,Lee, Juyeol,Shi, Hu,Lee, Jin Yong,Yoo, Eun Jeong,Song, Choong Eui,Ryu, Do Hyun American Chemical Society 2018 ORGANIC LETTERS Vol.20 No.6
<P>A bioinspired synthesis of chiral 3,4-dihydropyranones via S-to-O acyl-transfer reactions is described. Asymmetric Michael addition-lactonization reactions of β,γ-unsaturated α-keto esters with thioesters are catalyzed by proline-derived urea, providing 3,4-dihydropyranones and spiro-3,4-dihydrocoumarin-fused 3′,4′-dihydropyranones in high yield (up to 94%) with excellent stereoselectivities (up to >20:1 dr, 99% <I>ee</I>) under catalyst loadings as low as 1 mol %.</P> [FIG OMISSION]</BR>
강해지,Ki-Back Chu,Su-Hwa Lee,김민주,박현우,Hui Jin,Fu-Shi Quan 대한기생충학ㆍ열대의학회 2019 The Korean Journal of Parasitology Vol.57 No.5
Toxoplasma gondii can infect humans worldwide, causing serious diseases in pregnant women and immunocompromised individuals. T. gondii rhoptry protein 13 (ROP13) is known as one of the key proteins involved in host cell invasion. In this study, we generated virus-like particles (VLPs) vaccine expressing T. gondii rhoptry ROP13 and investigated VLPs vaccine efficacy in mice. Mice immunized with ROP13 VLPs vaccine elicited significantly higher levels of T. gondii-specific IgG, IgG1, IgG2a, and IgA antibody responses following boost immunization and challenge infection, whereas antibody inductions were insignificant upon prime immunization. Differing immunization routes resulted in differing antibody induction, as intranasal immunization (IN) induced greater antibody responses than intramuscular immunization (IM) after boost and challenge infection. IN immunization induced significantly higher levels of IgG and IgA antibody responses from feces, antibody-secreting cells (ASCs), CD4+ T, CD8+ T cells and germinal center B cell responses in the spleen compared to IM immunization. Compared to IM immunization, IN immunization resulted in significantly reduced cyst counts in the brain as well as lesser body weight loss, which contributed to better protection. All of the mice immunized through either route survived, whereas all naïve control mice perished. These results indicate that the ROP13 VLPs vaccine could be a potential vaccine candidate against T. gondii infection.
신문섭 ( Shin Moon Seup ),유시훙 ( Yu Shi Hung ),이용래 ( Lee Yong Rea ),권철휘 ( Kwoun Chul Hui ),최용규 ( Choi Yong Kyu ) 한국농공학회 1999 한국농공학회 학술대회초록집 Vol.1999 No.-
The purpose of this study is to find on tl1e Current Change and residual current in Final closing section of Seamangum the sea dike. The M<sub>2</sub> current was calculated in two case of the two and three point Final closing section. The residual currents are calculated diagnostically from the observed water temperature and salinity data and wind data and tidal residual current.