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Baek Gyu Jun, Woong Cheul Lee, Jae Young Jang, Soung Won Jeong, Young Don Kim, Gab Jin Cheon, Yun Nah Lee, Sang Gyune Kim, Young Seok Kim, Young Sin Cho, Sae Hwan Lee, Hong Soo Kim
BACKGROUND: Spontaneous bacterial peritonitis (SBP) is one of the severe complications of liver cirrhosis. Early detection of high-risk patients is essential for prognostic improvement. The aim of this study is to investigate the predictive factors related to in-hospital mortality in patients with SBP. METHODS: This was a retrospective study of 233 SBP patients (181 males, 52 females) who were admitted to four tertiary referral hospitals between August 2002 and February 2013...
March 19, 2018: Journal of Korean Medical Science
Baek Gyu Jun, Eui Ju Park, Woong Cheul Lee, Jae Young Jang, Soung Won Jeong, Young Don Kim, Gab Jin Cheon, Young Sin Cho, Sae Hwan Lee, Hong Soo Kim, Yun Nah Lee, Sang Gyune Kim, Young Seok Kim, Boo Sung Kim
Background/Aims: This study was conducted to clarify the sustained virological response (SVR) prediction ability of baseline and treatment-related factors in patients with chronic hepatitis C virus (HCV) infection. Methods: This retrospective study collected data at four tertiary referral hospitals between June 2004 and July 2012. Out of 476 patients, 330 treatment-naïve patients with chronic HCV infection were recruited. Pegylated interferon α-2a/- 2b plus ribavirin was administered for either 24 or 48 weeks depending on the HCV genotype...
March 14, 2018: Korean Journal of Internal Medicine
Mohie E M Zayed, Reda M El-Shishtawy, Shaaban A Elroby, Khalid O Al-Footy, Zahra M Al-Amshany
A set of different donor-π-acceptor compounds having dicyanovinyl as the acceptor and aryl moieties as donors were synthesized by Knoevenagel condensation. The UV-visible absorption and fluorescence spectra were investigated in different solvents. The optical band gab energy (Eg) was linearly correlated with the Hammett resonance effect of the donor to reveal that the higher the value of Hammett resonance effect of a donor, the lower the Eg of the molecule. The photophysical data revealed that compounds M4-M6 are typical molecular rotors with fluorescence due to twisted intramolecular charge transfer...
March 9, 2018: Chemistry Central Journal
Myong Kim, Cheryn Song, In Gab Jeong, Seung-Kwon Choi, Myungchan Park, Myungsun Shim, Young Seok Kim, Dalsan You, Jun Hyuk Hong, Choung-Soo Kim, Hanjong Ahn
BACKGROUND: Here we assessed the influence of androgen deprivation therapy (ADT) during and/or after post-prostatectomy radiotherapy (RT) on biochemical recurrence (BCR) and radiographic progression in patients with prostate cancer. METHODS: Patients with prostate cancer who underwent post-prostatectomy RT were analyzed. BCR and radiographic progression after RT were compared according to the concurrent or salvage ADT. Cox regression analyses were used to identify risk factors for BCR and radiographic progression...
March 9, 2018: BMC Cancer
Carolina Tecuatl, Gabriel Herrrera-López, Alejandro Martín-Ávila, Bocheng Yin, Stephen Weber, Germán Barrionuevo, Emilio J Galván
The selective vulnerability of hippocampal area CA1 to ischemia-induced injury is a well-known phenomenon. However, the cellular mechanisms that confer resistance to area CA3 against ischemic damage remain elusive. Here, we show that oxygen-glucose deprivation-reperfusion (OGD-RP), an in vitro model that mimic the pathological conditions of the ischemic stroke, increases the phosphorylation level of Tropomyosin-receptor-kinase B (TrkB) in area CA3. Slices preincubated with Brain-derived neurotrophic factor (BDNF) or 7,8-Dihydroxyflavone (7,8-DHF) exhibited reduced depression of the electrical activity triggered by OGD-RP...
February 26, 2018: European Journal of Neuroscience
Se Young Choi, Jeman Ryu, Dalsan You, In Gab Jeong, Jun Hyuk Hong, Hanjong Ahn, Choung-Soo Kim
PURPOSE: We investigated the oncologic effect of palliative transurethral resection of the prostate (pTURP) in patients with prostate cancer who received primary androgen deprivation therapy. METHODS: We reviewed 614 patients, including 83 who underwent pTURP; those with incidental prostate cancer were excluded. Patients were divided into the TURP group and non-TURP group. Propensity score matching was performed for comorbidity, initial prostate-specific antigen (PSA), TNM stage, and Gleason score (GS)...
February 7, 2018: Journal of Cancer Research and Clinical Oncology
Selvakumar Gopal, Charlotte C Shagol, Yeongyeong Kang, Bong Nam Chung, Seung Gab Han, Sa Tong-Min
AIMS: The propagation of pure cultures of AMF is an essential requirement for their large scale agricultural application and commercialization as biofertilizers. The present study aimed to propagate AMF using the single spore inoculation technique and compare their propagation ability with the known reference spores. METHODS AND RESULTS: Arbuscular mycorrhizal fungal spores were collected from the salt-affected Saemangeum reclaimed soil in South Korea. The technique involved inoculation of Sorghum-Sudan grass (Sorghum bicolor L...
February 2, 2018: Journal of Applied Microbiology
Kun He, Hong Sun, Hao Song
OBJECTIVES: To enhance the yield of 9α-hydroxy-4-androstene-3,17-dione (9-OHAD) from phytosterols, a phytosterol transport system was constructed in Mycobacterium sp. strain MS136. RESULTS: 9-OHAD can be produced via the controlled degradation of phytosterols by mycobacteria. This involves an active transport process that requires trans-membrane proteins and ATP. A phytosterol transport system from Mycobacterium tuberculosis H37Rv was constructed in Mycobacterium sp...
February 1, 2018: Biotechnology Letters
S S Shirkole, P P Sutar
In the present study, the GAB and moisture migration rate models were used to predict the shelf life of paprika under domestic (40 °C and 90% RH) and industrial (5, 10, 15 and 20 °C with 70% RH) storage conditions. The correlations between physicochemical characteristics and moisture content of paprika were developed to estimate the stability of the paprika. The estimated shelf life of low moisture paprika (4.40% dry basis) was found to be 101 and 31 days in HDPE and LDPE packages, respectively when stored in domestic condition...
February 2018: Journal of Food Science and Technology
Claudia Caballero-Cerón, Vinicio Serment-Moreno, Gonzalo Velazquez, J Antonio Torres, Jorge Welti-Chanes
An undesirable crispiness loss occurs when some dry fruits reach a critical moisture content (Xc ) and their glass transition temperature (Tg ) matches the storage temperature. Models for sorption isotherms and onset Tg values for dry mango, apple, and banana were used to estimate Xc values at 25 and 32 °C. All models yielded R2 > 0.97 but information theory criteria strongly supported GAB in all but one case (40 °C, mango). The Gordon-Taylor Tg model (GT) yielded high R2 values for apple and banana but resulted in R2 = 0...
February 2018: Journal of Food Science and Technology
Jooyeoun Jung, Wenjie Wang, Robert J McGorrin, Yanyun Zhao
Moisture adsorption isotherms and storability of dried hazelnut inshells and kernels produced in Oregon were evaluated and compared among cultivars, including Barcelona, Yamhill, and Jefferson. Experimental moisture adsorption data fitted to Guggenheim-Anderson-de Boer (GAB) model, showing less hygroscopic properties in Yamhill than other cultivars of inshells and kernels due to lower content of carbohydrate and protein, but higher content of fat. The safe levels of moisture content (MC, dry basis) of dried inshells and kernels for reaching kernel water activity (aw ) ≤0...
January 16, 2018: Journal of Food Science
Wook Nam, Se Young Choi, Sang Jun Yoo, Jeman Ryu, Jaehoon Lee, Yoon Soo Kyung, Jae Hyeon Han, Dalsan You, In Gab Jeong, Jun Hyuk Hong, Hanjong Ahn, Choung-Soo Kim
Purpose: We investigated factors affecting testosterone recovery after androgen deprivation therapy (ADT) withdrawal in patients with prostate cancer. Materials and Methods: The medical records of patients who underwent radical prostatectomy with ADT were retrospectively reviewed. In all, 221 patients were included in the analysis. Testosterone recovery was defined as supra-castration (SC) (testosterone levels in serum >50 ng/dL) or out of hypogonadism (OH) (>300 ng/dL) after ADT withdrawal...
January 2018: Investigative and Clinical Urology
Ricarda Herr, Sebastian Halbach, Miriam Heizmann, Hauke Busch, Melanie Boerries, Tilman Brummer
BRAF mutations occur in ~10% of colorectal cancer (CRC) and are associated with poor prognosis. Inhibitors selective for the BRAFV600E oncoprotein, the most common BRAF mutant, elicit only poor response rates in BRAF-mutant CRC as single agents. This unresponsiveness was mechanistically attributed to the loss of negative feedbacks on the epidermal growth factor receptor (EGFR) and initiated clinical trials that combine BRAF (and MEK) inhibitors, either singly or in combination, with the anti-EGFR antibodies cetuximab or panitumumab...
January 12, 2018: Oncogene
Hye-Jin Kim, Tae-Soon Yong, Myeong Heon Shin, Kyu-Jae Lee, Gab-Man Park, Uktamjon Suvonkulov, Dmitriy Kovalenko, Hak Sun Yu
Echinococcus granulosus sensu lato (s.l.) is a causative agent of cystic echinococcosis or cystic hydatid disease in humans and domestic and wild animals. The disease is a serious health problem in countries associated with poverty and poor hygiene practices, particularly in livestock raising. We introduced a practical algorism for genotyping the parasite, which may be useful to many developing countries. To evaluate the efficiency of the algorism, we genotyped 3 unknown strains isolated from human patients...
December 2017: Korean Journal of Parasitology
Gab-Man Park, Hyun Park, Sangtae Oh, Seokjoon Lee
We synthesized C-10 substituted triazolyl artemisinins by the Huisgen cycloaddition reaction between dihydroartemisinins (2) and variously substituted 1, 2, 3-triazoles (8a-8h). The antimalarial activities of 32 novel artemisinin derivatives were screened against a chloroquine-resistant parasite. Among them, triazolyl artemisinins with electron-withdrawing groups showed stronger antimalarial activities than those shown by the derivatives having electron-donating groups. In particularly, m-chlorotriazolyl artemisinin (9d-12d) showed antimalarial activity equivalent to that of artemisinin and could be a strong drug candidate...
December 2017: Korean Journal of Parasitology
Hyejin Cheon, Hye Jung Kim, Tae Hun Kim, Hun-Kyu Ryeom, Jongmin Lee, Gab Chul Kim, Jin-Sung Yuk, Won Hwa Kim
Purpose To determine the prognostic value of peritumoral edema identified at preoperative breast magnetic resonance (MR) imaging for disease recurrence in patients with invasive breast cancer. Materials and Methods Between January 2011 and December 2012, 353 women (median age, 49 years; range, 27-77 years) with invasive breast cancer who had undergone preoperative MR imaging and mastectomy or breast-conserving surgery were identified. Two radiologists independently reviewed peritumoral edema on the basis of the degree of the signal intensity surrounding the tumor on T2-weighted images...
January 9, 2018: Radiology
Jah Yeon Choi, Jiheun Ryu, Hyun Jung Kim, Joon Woo Song, Joo Hee Jeon, Dae-Hee Lee, Dong Joo Oh, Dae-Gab Gweon, Wang-Yuhl Oh, Hongki Yoo, Kyeongsoon Park, Jin Won Kim
Rationale: Atherosclerotic plaque is a chronic inflammatory disorder involving lipid accumulation within arterial walls. In particular, macrophages mediate plaque progression and rupture. While PPARγ agonist is known to have favorable pleiotropic effects on atherogenesis, its clinical application has been very limited due to undesirable systemic effects. We hypothesized that the specific delivery of a PPARγ agonist to inflamed plaques could reduce plaque burden and inflammation without systemic adverse effects...
2018: Theranostics
Laila Khaleda, Hee Jin Park, Dae-Jin Yun, Jong-Rok Jeon, Min Gab Kim, Joon-Yung Cha, Woe-Yeon Kim
Excessive salt disrupts intracellular ion homeostasis and inhibits plant growth, which poses a serious threat to global food security. Plants have adapted various strategies to survive in unfavorable saline soil conditions. Here, we show that humic acid (HA) is a good soil amendment that can be used to help overcome salinity stress because it markedly reduces the adverse effects of salinity on Arabidopsis thaliana seedlings. To identify the molecular mechanisms of HA-induced salt stress tolerance in Arabidopsis, we examined possible roles of a sodium influx transporter HIGH-AFFINITY K+ TRANSPORTER 1 (HKT1)...
December 20, 2017: Molecules and Cells
Sylwia Paszek, Natalia Gabło, Edyta Barnaś, Małgorzata Szybka, Jan Morawiec, Agnieszka Kołacińska, Izabela Zawlik
OBJECTIVES: Triple-negative breast cancer (TNBC) is an aggressive subtype of breast cancer with limited treatment options and poor prognosis. TNBC is usually diagnosed at a relatively young age and is characterized by high risk of developing metastases. Some epigenetic regulation of gene expression is associated with TNBC. Expression of microRNAs (miRNAs) can serve as a potential tool for identifying critical biomarkers in TNBC. The aim of our study is to examine expression of selected miRNAs in TNBC and to assess the relationship between miRNA expression and clinicopathological factors...
2017: Ginekologia Polska
Mark S Chambers, Leesa A Sidhu, Ben O'Neill, Nokuthaba Sibanda
Archival tagging studies of southern bluefin tuna (SBT , Thunnus maccoyii ) have revealed that juveniles residing in the Great Australian Bight (GAB) over the austral summer undertake seasonal cyclic migrations to the southeast Indian Ocean and the Tasman Sea during winter. However, there remains disagreement about the extent of mixing between juvenile SBT regularly caught by longline fleets south of Africa and those observed in the GAB. Some researchers have argued that archival tag recoveries indicate most juveniles reside in the GAB over the austral summer...
November 2017: Ecology and Evolution
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