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https://www.readbyqxmd.com/read/27874078/glutamate-dehydrogenase-activator-bch-stimulating-reductive-amination-prevents-high-fat-high-fructose-diet-induced-steatohepatitis-and-hyperglycemia-in-c57bl-6j-mice
#1
Seung Jin Han, Sung-E Choi, Sang-A Yi, Jong Gab Jung, Ik-Rak Jung, Maureen Shin, Seok Kang, Hyunhee Oh, Hae Jin Kim, Dae Jung Kim, Ji Eun Kwon, Cheol Soo Choi, Kwan Woo Lee, Yup Kang
Individuals with non-alcoholic fatty liver disease (NAFLD) and type 2 diabetes (T2D) induced by high calorie western diet are characterized by enhanced lipogenesis and gluconeogenesis in the liver. Stimulation of reductive amination may shift tricarboxylic acid cycle metabolism for lipogenesis and gluconeogenesis toward glutamate synthesis with increase of NAD+/NADH ratio and thus, ameliorate high calorie diet-induced fatty liver and hyperglycemia. Stimulation of reductive amination through glutamate dehydrogenase (GDH) activator 2-aminobicyclo-(2,2,1)-heptane-2-carboxylic acid (BCH) reduced both de novo lipogenesis and gluconeogenesis but increased the activities of sirtuins and AMP-activated kinase in primary hepatocytes...
November 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27861634/molecular-characterization-of-striated-muscle-specific-gab1-isoform-as-a-critical-signal-transducer-for-neuregulin-1-erbb-signaling-in-cardiomyocytes
#2
Taku Yasui, Takeshi Masaki, Yoh Arita, Tomohiko Ishibashi, Tadakatsu Inagaki, Makoto Okazawa, Toru Oka, Wataru Shioyama, Keiko Yamauchi-Takihara, Issei Komuro, Yasushi Sakata, Yoshikazu Nakaoka
Grb2-associated binder (Gab) docking proteins regulate signals downstream of a variety of growth factors and receptor tyrosine kinases. Neuregulin-1 (NRG-1), a member of epidermal growth factor family, plays a critical role for cardiomyocyte proliferation and prevention of heart failure via ErbB receptors. We previously reported that Gab1 and Gab2 in the myocardium are essential for maintenance of myocardial function in the postnatal heart via transmission of NRG-1/ErbB-signaling through analysis of Gab1/Gab2 cardiomyocyte-specific double knockout mice...
2016: PloS One
https://www.readbyqxmd.com/read/27857286/high-speed-time-resolved-laser-scanning-microscopy-using-the-line-to-pixel-referencing-method
#3
Jiheun Ryu, Jayul Kim, Hyunjun Kim, Jae-Heon Jeong, Hak-Jun Lee, Hongki Yoo, Dae-Gab Gweon
Fluorescence lifetime imaging microscopy (FLIM) is a powerful technique to visualize photophysical characteristics of biological targets. However, conventional FLIM methods have some limitations that restrict obtaining high-precision images in real time. Here, we propose a high-speed time-resolved laser-scanning microscopy by incorporating a novel line-to-pixel referencing method into the previously suggested analog mean-delay (AMD) method. The AMD method dramatically enhances the photon accumulation speed for achieving the certain precision compared to the time-correlated single-photon counting (TCSPC) method while maintaining high photon efficiency...
November 10, 2016: Applied Optics
https://www.readbyqxmd.com/read/27831916/retrospective-evaluation-of-the-clinical-utility-of-serological-biomarkers-in-chinese-patients-with-inflammatory-bowel-disease-2-year-clinical-experience
#4
Shulan Zhang, Jing Luo, Ji Li, Ziyan Wu, Chaojun Hu, Ping Li, Chuiwen Deng, Fengchun Zhang, Jiaming Qian, Yongzhe Li
BACKGROUND: Antibodies to saccharomyces cerevisiae (ASCA), antibodies to perinuclear anti-neutrophil cytoplasmic (pANCA), pancreatic autoantibodies (PAB) and antibodies against intestinal goblet cells (GAB) are important in diagnosing Crohn's disease (CD) and ulcerative colitis (UC). However, little is known about their diagnostic value in real clinical practice in China. This retrospective study aimed to present our 2-year clinical experience with those biomarkers in diagnosis of CD and UC...
November 10, 2016: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/27793798/epithelial-disruption-of-gab1-perturbs-surfactant-homeostasis-and-predisposes-mice-to-lung-injuries
#5
Kai Wang, Shenlu Qin, Zuyu Liang, Yun Zhang, Yingchun Xu, An Chen, Xiaohong Guo, Hongqiang Cheng, Xue Zhang, Yuehai Ke
GRB2-associated-binding protein 1 (Gab1) belongs to Gab adaptor family (Gabs), which integrates multiple signals in response to the epithelial growth factors. Recent genetic studies identified genetic variants of human Gab1 gene as potential risk factors of asthmatic inflammation. However, Gab1 functions in lungs remain largely unknown. Alveolar type-II cells (AT-IIs) are responsible for surfactant homeostasis, and essentially regulate lung inflammation following various injuries. Here, in vitro knockdown of Gab1 was shown to cause a decrease in surfactant proteins (SPs) in AT-IIs...
October 28, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27785917/risk-of-intravesical-recurrence-after-ureteroscopic-biopsy-for-upper-tract-urothelial-carcinoma-does-the-location-matter
#6
Sangjun Yoo, Dalsan You, Cheryn Song, Bumsik Hong, Jun Hyuk Hong, Choung-Soo Kim, Hanjong Ahn, In Gab Jeong
INTRODUCTION: To investigate whether ureteroscopic biopsy (URS-Bx) for upper tract urothelial carcinoma (UTUC) before radical nephroureterectomy affects intravesical recurrence (IVR). PATIENTS AND METHODS: Of the 515 patients receiving radical nephroureterectomy for UTUC between 1998 and 2012, 387 patients were included for the analysis. URS-Bx was performed in 69 patients (17.8%). Patients were stratified according to tumor location, and the impact of URS-Bx on IVR was evaluated after adjusting for other clinicopathologic variables...
October 27, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27780946/-a-case-of-cecal-endometriosis-presenting-as-subepithelial-tumor
#7
Min Sik Hwang, Young Don Kim, Sa Young Shin, Jae Hyuck Jun, Jong Sam Hong, Dae Woon Eom, Gab Jin Cheon
Endometriosis is a benign gynecologic disease, characterized by the presence and growth of functional endometrial-like tissue outside uterus. This ectopic endometrial tissue is most commonly found in the peritoneum, ovaries and uterosacral ligaments, but extremely rarely there is involvement of the appendix or cecum. Here we report a case of cecal endometriosis presenting as a subepithelial tumor diagnosed by surgical excision.
October 25, 2016: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/27777005/dihydrostilbenes-and-diarylpropanes-synthesis-and-in-vitro-pharmacological-evaluation-as-potent-nitric-oxide-production-inhibition-agents
#8
Ha Young Jang, Hyeong Jin Park, Kongara Damodar, Jin-Kyung Kim, Jong-Gab Jun
An efficient synthesis of dihydrostilbenes (1-5) and diarylpropanes (6-10) is achieved from the commercially available starting materials and Wittig-Horner reaction, Claisen-Schmidt condensation and hydrogenation as key steps. Later, their nitric oxide (NO) production inhibition effects were evaluated in lipopolysaccharide (LPS)-induced RAW-264.7 macrophages as an indicator of anti-inflammatory activity. All the tested compounds significantly decreased NO production in a concentration-dependent manner except compounds 2, 6 and 8 and did not show notable cytotoxicity except compound 1...
October 13, 2016: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/27765206/characterisation-of-aged-infant-formulas-and-physicochemical-changes
#9
Tammie Wei Yi Tham, Andrew Ti Heong Yeoh, Weibiao Zhou
Three different infant formulas (P1, P2 and P3) were characterised, and changes in their physicochemical properties under three different ageing conditions (i.e. 25°C, 45°C and 60°C) were established. At 60°C, all of the three powders exhibited increased moisture content, which was consistent with an increase in water activity. The GAB sorption model fitted for P1 while P2 and P3 did not follow the same sorption isotherm pattern. The glass transition temperature (Tg) for all of the powders significantly decreased at 45°C and 60°C...
March 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27752848/internal-mammary-node-adenopathy-on-breast-mri-and-pet-ct-for-initial-staging-in-patients-with-operable-breast-cancer-prevalence-and-associated-factors
#10
Hyejin Cheon, Hye Jung Kim, Sang-Woo Lee, Do-Hoon Kim, Chang-Hee Lee, Seung Hyun Cho, Kyung Min Shin, So Mi Lee, Gab Chul Kim, Won Hwa Kim
PURPOSE: To evaluate the prevalence of and factors associated with internal mammary node (IMN) adenopathy on MRI and PET/CT used for initial staging in patients with operable breast cancer. METHODS: A total of 1320 patients diagnosed with invasive breast carcinoma between January 2011 and December 2015 underwent MRI and PET/CT for initial staging. The patients were considered to have IMN adenopathy when MRI revealed IMNs with the longest diameter of 5 mm or greater and a standardized uptake value greater than that of the mediastinal blood pool/contralateral parasternal area on PET/CT...
December 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27720970/changes-in-weight-and-metabolic-syndrome-are-associated-with-prostate-growth-rate-over-a-5-year-period
#11
Yoon Soo Kyung, Dalsan You, In Gab Jeong, Seungbong Han, Hong-Kyu Kim, Choung-Soo Kim
OBJECTIVES: To evaluate the relationship between changes in weight, waist circumference (WC), metabolic syndrome (MetS), and prostate growth over 5 years in adult population. MATERIALS AND METHODS: Data were collected from 1,088 adult males (age ≥ 40 years) without history of prostate cancer who underwent more than 2 general health screenings between 2006 and 2013. Percent changes in prostate volume (PV) were assessed for 5 years after baseline measurements. Association between prostate growth and change in weight, WC and MetS status, respectively, were calculated using uni- and multivariate linear regression analyses...
October 6, 2016: Urology
https://www.readbyqxmd.com/read/27708787/air-pollution-and-urinary-n-acetyl-b-glucosaminidase-levels-in-residents-living-near-a-cement-plant
#12
Min Soo Jung, Jae Yoon Kim, Hyun Seung Lee, Chul Gab Lee, Han Soo Song
BACKGROUND: To identify adverse renal effects due to air pollution derived from a cement plant in Korea. Urinary n-acetyl-B-glucosaminidase (U-NAG) levels in residents living near a cement plant were compared to those in a group who lived farther away from the plant. METHODS: From June to August 2013 and from August to November 2014, laboratory tests for U-NAG and heavy metal were conducted on 547 study participants. Based on the level of air pollution exposure, subjects were divided into the "less exposed group," (LEG) which consisted of 66 persons who lived more than 5 km away from the cement plant, the "more exposed group from the rural area" (MEG-R), which consisted of 272 persons, and the "more exposed group from downtown area" (MEG-D), which consisted of 209 persons who lived within a 1 km radius of the cement plant...
2016: Annals of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/27604753/synthesis-of-high-surface-area-carbon-adsorbents-prepared-from-pine-sawdust-onopordum-acanthium-l-for-nonsteroidal-anti-inflammatory-drugs-adsorption
#13
S Álvarez-Torrellas, M Muñoz, J A Zazo, J A Casas, J García
Chemically activated carbon materials prepared from pine sawdust-Onopordum acanthium L. were studied for the removal of diclofenac and naproxen from aqueous solution. Several carbons, using different proportions of precursors were obtained (carbon C1 to carbon C5) and the chemical modification by liquid acid and basic treatments of C1 were carried out. The textural properties of the carbons, evaluated by N2 adsorption-desorption isotherms, revealed that the treatments with nitric acid and potassium hydroxide dramatically reduced the specific surface area and the pore volume of the carbon samples...
December 1, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27577872/a-critical-examination-of-the-recently-reported-crystal-structures-of-the-human-smn-protein
#14
Manfred S Weiss, Kay Diederichs, Randy J Read, Santosh Panjikar, Gregory D Van Duyne, A Gregory Matera, Utz Fischer, Clemens Grimm
A recent publication by Seng et al. in this journal reports the crystallographic structure of refolded, full-length SMN protein and two disease-relevant derivatives thereof. Here, we would like to suggest that at least two of the structures reported in that study are incorrect. We present evidence that one of the associated crystallographic datasets is derived from a crystal of the bacterial Sm-like protein Hfq and that a second dataset is derived from a crystal of the bacterial Gab protein. Both proteins are frequent contaminants of bacterially overexpressed proteins which might have been co-purified during metal affinity chromatography...
August 29, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/27567188/impact-of-tumor-location-on-local-recurrence-after-nephroureterectomy-for-upper-tract-urothelial-carcinoma-implications-for-adjuvant-radiotherapy
#15
Sangjun Yoo, Dalsan You, In Gab Jeong, Bumsik Hong, Jun Hyuk Hong, Hanjong Ahn, Choung-Soo Kim
PURPOSE: To evaluate the impact of tumor location on local recurrence in upper tract urothelial carcinoma (UTUC). PATIENTS AND METHODS: Among UTUC patients who underwent radical nephroureterectomy, 192 with renal pelvic tumors and 161 with ureteral tumors were included. Local recurrence was divided into regional lymph node recurrence (rLNR) and surgical bed recurrence (SBR). RESULTS: During a mean follow-up of 73 months, local recurrence occurred in 33 patients (9...
July 21, 2016: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/27553579/impact-of-metastasectomy-on-prognosis-in-patients-treated-with-targeted-therapy-for-metastatic-renal-cell-carcinoma
#16
Dalsan You, Chunwoo Lee, In Gab Jeong, Cheryn Song, Jae-Lyun Lee, Bumsik Hong, Jun Hyuk Hong, Hanjong Ahn, Choung-Soo Kim
PURPOSE: We evaluated the value of metastasectomy in patients treated with targeted therapy for metastatic renal cell carcinoma (mRCC). METHODS: The medical records of 325 patients who presented with mRCC were reviewed; among these patients, 33 underwent complete metastasectomy followed by targeted therapy (complete metastasectomy group), 29 underwent incomplete metastasectomy followed by targeted therapy (incomplete metastasectomy group), and 263 treated with targeted therapy alone (non-metastasectomy group)...
November 2016: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/27502934/does-lymph-node-dissection-during-nephroureterectomy-affect-oncological-outcomes-in-upper-tract-urothelial-carcinoma-patients-without-suspicious-lymph-node-metastasis-on-preoperative-imaging-studies
#17
Sangjun Yoo, Dalsan You, In Gab Jeong, Bumsik Hong, Jun Hyuk Hong, Hanjong Ahn, Choung-Soo Kim
PURPOSE: This study aimed to investigate the effects of lymph node dissection (LND) on upper tract urothelial carcinoma (UTUC) without suspicious lymph node (LN) metastasis on preoperative imaging studies. METHODS: From 1998 to 2012, 418 UTUC patients without suspicious LN metastasis on preoperative imaging studies were included. Patients were divided into two groups according to the performance of LND. The effects of LND on oncological outcomes were assessed after adjusting other variables...
August 8, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/27478221/stability-and-microstructure-of-freeze-dried-guava-pulp-psidium-guajava-l-with-added-sucrose-and-pectin
#18
Márcia Cavalcante Conceição, Tatiana Nunes Fernandes, Jaime Vilela de Resende
Freeze-dried guava pulp powders, formulated with the addition of sucrose (0-20 g/100 g pulp) and pectin (0-1.0 g/100 g pulp), were obtained, and their stability was evaluated with respect to the water adsorption isotherms, thermal analysis and microstructure. The GAB (Guggenheim-Anderson-de Boer), Peleg and BET (Brunauer-Emmett-Teller) models were used to evaluate the water adsorption. The microstructure was examined using optical microscopy with polarized light and scanning electron microscopy (SEM). The GAB and BET parameters showed that the moisture content of the monolayer (Xm) increases with increasing pectin concentration in the adsorption isotherms...
June 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/27478216/effects-of-plasticizers-on-sorption-and-optical-properties-of-gum-cordia-based-edible-film
#19
Muhammad Abdul Haq, Feroz Alam Jafri, Abid Hasnain
The present study aimed to characterize a biodegradable film produced from the polysaccharide of an indigenous plant Cordia myxa. Effect of plasticizer type (Glycerol, Sorbitol, PEG200 and PEG 400) and concentration (0-30 %) was studied on sorption and optical properties of the casted film. Increase in plasticizer concentration resulted in increase in equilibrium moisture content of the film and was supported by GAB model of sorption indicating that isotherms were of Type II. The monolayer value increased with the increase in plasticizer concentration with a peak of 0...
June 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/27462194/slow-growing-early-adenocarcinoma-arising-from-traditional-serrated-adenoma-in-the-duodenum
#20
Yoon Kyoo Park, Woo Jin Jeong, Gab Jin Cheon
Serrated polyps are classified into 3 distinct types: hyperplastic polyp, sessile serrated adenoma, or transitional serrated adenoma. A serrated adenoma is a precursor lesion for colorectal carcinoma. Serrated polyps are commonly found in the colorectum but have rarely been described in other parts of the gastrointestinal tract. Serrated adenomas in the small intestine may represent aggressive lesions with high malignant potential, according to some reports. A 66-year-old man with no significant medical history underwent esophagogastroduodenoscopy (EGD) for general examination...
May 2016: Case Reports in Gastroenterology
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