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인체에서 경구 당부하에 의한 단기간의 혈중 렙틴의 변화에 관한 연구
안규정 關東大學校醫科大學醫科學硏究所 1998 關東醫大學術誌 Vol.2 No.1
Leptin, the peptide encoded by the obese gene, is secreted by adipose cells and plays a role in regulating food intake, energy expenditure, and adiposity. Serum leptin levels are highly correlated with body fat mass in human. Obese individuals have significantly higher circulating leptin than normal, lean subjects. In addition, females have higher serum leptin than males with extremes in energy intake, such as fasting and overfeeding. Whether insulin acutely regulates plasma leptin humans is controversial. AIM of STUDY: To investigate the dynamic profile of plasma leptin during oral glucose feeding. METHOD and SUBJECTS: I examined the time-course characteristics of the glucose on leptin in healthy 12 men (age 32±8) years (mean±SD); BMI 24.0±3.1 kg/㎡) and 12 women(ago 33±10 years; BMI 21.1±1.9 kg/㎡) volunteers. Concentrations of T3, T4, TSH, cortisol, and ACTH, total cholesterol, LDL-cholesterol, HDI-cholesterol, triglycerides, insulin, C-peptides and leptin were measured in the baseline fasting blood sample from an oral GTT. Insulin, C-peptide and leptin were measured in the throughout oral GTT. Serum leptin concentrations were measured by radioimmunoassay. RESULTS: The fasting serum leptin concentrations were higher in women than in men in spite of the BMI was higher in men than in women. The glucose, insulin and C-peptide increased significantly but tile leptin level decreased significantly during a oral glucose tolerance test (P<0.05). CONCLUS1ON: Plasma leptin concentrations are rapidly suppressed by the loading of oral glucose in humans in vivo. Further studies are needed to define the role of the oral glucose as well as other GI hormones in the regulation of leptin secretion.
한의진단명과 진단요건의 표준화 연구 II (표준화 실례) : 2차년도 연구결과 중간 보고
양기상,최선미,최승훈,안규석,박경모,박종현,김성우,신승호,정우열,전병훈,고현,김정범,신상우,김성훈,김동희,권영규,엄현섭,장혜옥 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1
The diagnostic requirements were suggested and explained regarding the systems of differentiation of symptoms and signs in the second year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows; - differential diagnosis according to condition of body fluid, differentiation of syndromes according to the state of qi and blood, differential diagnosis according to relative excessiveness or deficiency of yin and yang(氣血陰陽津液辨證) - differentiation of diseases according to pathological changes of the viscera and their interrelation - analyzing and differentiating of febrile diseases in accordance with the theory of the six channels(傷寒辨證) The individual diagnosis pattern was arranged by the diagnostic requirements in the following order : another name(異名), notion of diagnosis pattern, index of differentiation of symptoms and signs(辨證指標), the main point of diagnosis, analysis of diagnosis pattern(證候分析), discrimination of diagnosis pattern(證候鑑別), a way of curing a diseases(治法), prescription(處方), herb in common use(常用藥物), diseases appearing the diagnosis pattern(常見疾病), documents(文獻調査). This study was carried out on the basis of the Chinese documents and references.
안병건,추관식,문두수,안정식,김영대,김형자,이규용 釜慶大學校 2002 釜慶大學校 論文集 Vol.7 No.-
Low energy high current N_2 ion beam was used to modify the morphology and chemical composition of cemented carbide WC-Co(Co:10 wt%, TiC + TaC:15 wt%, WC:bal) hard material surface for the fabrication of the TiN thin film by sol-gel method. The effects of ion beam treatment on preparation of the TiN thin film by sol-gel mothod were investigated by XPS, SEM, AFM and GXRD. According to the N_2 ion beam bombardment, the surface roughness was increased and TiC binders in WC were dissolved. The dissolved Ti was recombind with nitrogen ion to form the TiN nucleuses which were acted as seeds for the forming of the TiN thin film on the cemented WC-Co surface. Besides, the sputter deposited Ti interlayer prevented the diffusion of TiO_2 sol into the porous WC-Co during the formation of TiN thin film.
안규정 ( Kyu Jeung Ahn ) 대한당뇨병학회 2009 Diabetes and Metabolism Journal Vol.33 No.2
Pregnancy is a complex metabolic state involving dramatic alterations in the hormonal or cytokine environments (increases in estrogen, progesterone, prolactin, cortisol, human chorionic gonadotropin, placental growth hormone and human placental lactogen, TNF-alpha, resistin, leptin, and a decrease in adiponectin) as well as an increasing burden of fuel utilization by the conceptus. Metabolically, the first trimester is characterized by increased insulin sensitivity and lipogenesis. The second and third trimesters, in contrast, are characterized by insulin resistance and increased lipolysis. The adipose tissue is considered an active organ, capable of secreting substances such as adipokines, which may play a role in the pathogenesis of insulin resistance. Resistin, leptin, serum and placental levels increase as pregnancy progresses, which is in contrast to levels of adiponectin. These levels correlate with the state of increased insulin resistance that develops in the latter stages of pregnancy. (Korean Diabetes J 33:77-82, 2009)
Ahn, Chang Ho,Han, Kyung Ah,Yu, Jae Myung,Nam, Joo Young,Ahn, Kyu Jeung,Oh, Tae Keun,Lee, Hyoung Woo,Lee, Dae Ho,Kim, Jaetaek,Chung, Choon Hee,Park, Tae Sun,Kim, Byung Joon,Park, Seok Won,Park, Hyeong DIABETES OBESITY AND METABOLISM 2017 DIABETES OBESITY AND METABOLISM Vol.19 No.5
<P><B>Aims</B></P><P>To assess the efficacy and safety of gemigliptin, a dipeptidyl peptidase‐4 inhibitor, added to metformin and sulphonylurea in patients with type 2 diabetes (T2DM).</P><P><B>Materials and methods</B></P><P>We conducted a randomized, double‐blind, placebo‐controlled trial in 219 Korean patients inadequately controlled with metformin and glimepiride. Participants were randomized to gemigliptin 50 mg once daily or placebo added to metformin and glimepiride. The primary endpoint was change in glycated haemoglobin (HbA1c) level from baseline to week 24.</P><P><B>Results</B></P><P>The baseline HbA1c was 8.2% in both groups. The addition of gemigliptin to metformin and glimepiride significantly reduced HbA1c levels at week 24 compared with placebo (between‐group difference in adjusted mean change −0.87%, 95% confidence interval [CI] −1.09% to −0.64%). Fasting plasma glucose level was also significantly reduced with gemigliptin (−0.93 mmol/L, 95% CI −1.50 to −0.35 mmol/L), and a higher proportion of participants achieved an HbA1c level of <7% (39.3% vs 5.5%; <I>P</I><.001) in the gemigliptin group than in the placebo group. Total cholesterol and LDL cholesterol were modestly but significantly reduced in the gemigliptin group compared with the placebo group (−0.21 mmol/L, 95% CI −0.38 to −0.03 mmol/L for total cholesterol, −0.18 mmol/L, 95% CI −0.34 to −0.01 mmol/L for LDL cholesterol). The incidence of hypoglycaemia was 9.4% in the gemigliptin group and 2.7% in the placebo group.</P><P><B>Conclusions</B></P><P>Gemigliptin significantly improved glycaemic control in patients with T2DM inadequately controlled with metformin and sulphonylurea. The incidence of hypoglycaemia was higher with gemigliptin than with placebo, which highlights the importance of optimal dose adjustment for sulphonylurea.</P>
이준규,안재성,권순태,김환정,정제택 충남대학교 의과대학 지역사회의학연구소 1997 충남의대잡지 Vol.24 No.2
This study was compared pre-operative MRI finding with operative finding on 36 cases with the failed back surgery syndrome (FBSS) retrospectively. The purpose of this study was to determine the accuracy of the MRI on the FBSS including early complications such as hematoma of infection. Of the 51 patients with FBSS, we analyzed pre-operative MRI finding compared with operative finding on 36 cases excluding nonunion, instability, metal failure and pseudoarthrosis who underwent an operation for the FBSS from December 1994 to June 1997. There were 25 men (69.4%) and 11 women (30.6%), aged from 16 to 68 years (average 43.6 years). These were divided into 5 sub-groups and calculated sensitivity, specificity and positive predictability. MRI accuracy in recurred disc was 84%, scar adhesion, recurred or developed stenosis, infection and hematoma 100% each and all, overall accuracy of the MRI 93%, respectively. Average interval of re-operation in FBSS WAS 4.3 years. In the 18 cases (50%), symptoms persist without pain-free interval after first operation. Early complications including hematoma and infection are easily detected with MRI. Especially if patient complains of severe leg pain or neurologic deficit, it is a good diagnostic procedure to check the MRI. The MRI is a useful method for evaluation of most cases of the FBSS, but it has limitations to evaluate recurred disc or scar adhesion only in T1, T2 weighted image. Therefore Gd-DTPA enhancement is necessary for the accurate diagnosis.