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https://www.readbyqxmd.com/read/29169227/korean-red-ginseng-excitation-of-paraventricular-nucleus-neurons-via-non-nmda-glutamate-receptor-activation-in-mice
#1
Yiming Shen, Janardhan P Bhattarai, Soo Joung Park, Gyu Seung Lee, Pan Dong Ryu, Seong Kyu Han
It has been reported that Korean red ginseng (KRG) as a valuable and important traditional medicine has various effects on central nervous system suggesting its complicated actions. Paraventricular nucleus (PVN) neurons of hypothalamus play a critical role for stress responses and hormone secretions. Although many studies have reported the action mechanisms of KRG on various cell and systems, the direct membrane effects of KRG on the PVN neurons which are involved in stress response are still poorly understood...
November 23, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/29169221/biochemical-characterization-of-a-novel-gh86-%C3%AE-agarase-producing-neoagarohexaose-from-gayadomonas-joobiniege-g7
#2
Yeong Rim Lee, Subin Jung, Won-Jae Chi, Chang-Hwan Bae, Byeong-Chul Jeong, Soon-Kwang Hong, Chang-Ro Lee
A novel β-agarase AgaJ5 was identified from an agar-degrading marine bacterium Gayadomonas joobiniege G7. It belongs to the glycoside hydrolase family 86 and is composed of 805 amino acids with a 30-amino acid signal peptide. Zymogram analysis showed that purified AgaJ5 has agarase activity. The optimum temperature and pH for AgaJ5 activity were determined to be 30°C and 4.5, respectively. AgaJ5 was an acidic β-agarase that had strong activity at a narrow pH range of 4.5 to 5.5, and was a cold-adapted enzyme retaining 40% of enzymatic activity at 10°C...
November 25, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29169220/fermented-soymilk-alleviates-lipid-accumulation-by-inhibition-of-srebp-1-and-activation-of-nrf-2-in-the-hepatocellular-steatosis-model
#3
Sang Bong Ahn, Wen Hao Wu, Jong Hun Lee, Dae Won Jun, Jihyun Kim, Riji Kim, Tae-Bok Lee, Jin Hyun Jun
Ingredients of soy and fermented soy products have been widely utilized as food supplements for health-enhancing properties. The aim was to evaluate the effects of fermented soymilk (FSM) and soymilk (SM) on the free fatty acid-induced lipogenesis in the hepatocellular steatosis model. HepG2 cells were incubated with palmitic acid (PA) for 24 h to induce lipogenesis and accumulation of intracellular lipid contents. The PA treated cells were co-incubated with FSM, SM, genistein, and estrogen, respectively. Lipid accumulations in the PA-treated HpG2 cells were significantly decreased by co-incubation with FSM...
November 25, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29169219/genome-analysis-of-the-naphthalene-degrading-pseudomonas-sp-as1-harboring-the-megaplasmid-pas1
#4
Jisun Kim, Woojun Park
Polycyclic aromatic hydrocarbons (PAHs), including naphthalene, are widely distributed in nature. Naphthalene has been regarded as a model PAH compound for investigating the mechanisms of bacterial PAH biodegradation. Pseudomonas sp. AS1 isolated from an arsenic-contaminated site is capable of growing on various aromatic compounds such as naphthalene, salicylate, and catechol, but not on gentisate. The genome of strain AS1 consists of a 6,126,864 bp circular chromosome and the 81,841 bp circular plasmid pAS1...
November 25, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29169217/complete-biotransformation-of-protopanaxatriol-type-ginsenosides-in-panax-ginseng-leaf-extract-to-aglycon-protopanaxatriol-by-%C3%AE-glycosidases-from-dictyoglomus-turgidum-and-pyrococcus-furiosus
#5
Eun-Joo Yang, Kyung-Chul Shin, Dae Young Lee, Deok-Kun Oh
Aglycon protopanaxatriol (APPT) has valuable pharmacological effects such as memory enhancement and tumor inhibition. β-Glycosidase from the hyperthermophilic bacterium Dictyoglomus turgidum (DT-bgl) hydrolyzes the glucose residues linked to APPT, but not other glycoside residues. β-Glycosidase from the hyperthermophilic bacterium Pyrococcus furiosus (PF-bgl) hydrolyzes the outer sugar at C-6 but not the inner glucose at C-6 or the glucose at C-20. Thus, the combined use of DT-bgl and PF-bgl is expected to increase the biotransformation of PPT-type ginsenosides to APPT...
November 25, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29169203/dissipation-residues-and-risk-assessment-of-spirotetramat-and-its-four-metabolites-in-citrus-and-soil-under-field-conditions-by-lc-ms-ms
#6
Qingtao Zhang, Yuling Chen, Shouyi Wang, Yurong Yu, Ping Lu, Deyu Hu, Zaihui Yang
A modified Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) method for the simultaneous determination of spirotetramat and its four metabolite residues in citrus, peel, pulp and soil was developed and validated by liquid chromatography with tandem mass spectrometry (LC-MS/MS). The samples were extracted with acetonitrile (1%, glacial acetic acid, v/v) and purified using primary secondary amine and octadecylsilane. The limit of detection was 0.01-0.13 mg/kg, whereas that of quantification was 0.02-0...
November 23, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/29169199/-internet-addiction-suicidality-and-non-suicidal-self-harming-behavior-a-systematic-review
#7
Toni Andreas Steinbüchel, Stephan Herpertz, Ina Külpmann, Aram Kehyayan, Jan Dieris-Hirche, Bert Theodor Te Wildt
Background Internet addiction (IA) is associated with a high rate of co-morbid mental disorders, especially depression, anxiety disorders, ADHD and personality disorders and a considerable level of psychological strain. In terms of risk assessment, the present work investigates the current research literature on suicidal behavior and non-suicidal self-injurious behavior (NSSI). Methods We performed a systematic literature search in 14 databases on title and abstract level for the most common keywords for IA, NSSI and suicidality...
November 23, 2017: Psychotherapie, Psychosomatik, Medizinische Psychologie
https://www.readbyqxmd.com/read/29169197/sex-dependent-effect-of-metformin-on-serum-prolactin-levels-in-hyperprolactinemic-patients-with-type-2-diabetes-a-pilot-study
#8
Robert Krysiak, Witold Szkróbka, Bogusław Okopień
Background Metformin was found to reduce circulating levels of pituitary hormones. Objective The purpose of this study was to assess whether sex determines the effect of metformin on lactotroph secretory function. Methods The study population included 25 women and 12 men with mildly elevated serum prolactin levels (25-75 ng/mL). Because of concomitant type 2 diabetes, all participants were treated with metformin (3 g daily). Plasma levels of glucose and lipids, HOMA1-IR, serum levels of prolactin, thyrotropin and free thyroid hormones, as well as Jostel's, SPINA-GT and SPINA-GD indices were assessed at baseline and at the end of metformin treatment...
November 23, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/29169195/wide-field-piecemeal-cold-snare-polypectomy-of-large-sessile-serrated-polyps-without-a-submucosal-injection-is-safe
#9
David J Tate, Halim Awadie, Farzan F Bahin, Lobke Desomer, Ralph Lee, Steven J Heitman, Kathleen Goodrick, Michael J Bourke
Background and study aims Large series suggest endoscopic mucosal resection is safe and effective for the removal of large (≥ 10 mm) sessile serrated polyps (SSPs), but it exposes the patient to the risks of electrocautery, including delayed bleeding. We examined the feasibility and safety of piecemeal cold snare polypectomy (pCSP) for the resection of large SSPs. Methods Sequential large SSPs (10 - 35 mm) without endoscopic evidence of dysplasia referred over 12 months to a tertiary endoscopy center were considered for pCSP...
November 23, 2017: Endoscopy
https://www.readbyqxmd.com/read/29169189/lifelong-voluntary-exercise-modulates-age-related-changes-in-oxidative-stress
#10
Mohamed Amine Bouzid, Edith Filaire, Régis Matran, Sophie Robin, Claudine Fabre
The hypothesis that aging and regular physical activity could influence oxidative stress has been studied by comparing antioxidant activities (superoxide dismutase (SOD), glutathione peroxidase (GPX), glutathione reductase (GR), ascorbic acid and α-Tocopherol) and malondialdehyde level (MDA) in four groups: young sedentary (n=15; age: 20.3±2.8 years; YS), young active (n=16; age: 21.4±1.9 years; YA), old sedentary (n=15; age: 65.1±3.5 years; OS) and old active (n=17; age: 67.2±4.8 years; OA). Antioxidant activities and MDA level were assessed at rest and after an incremental exercise...
November 23, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29169182/gemcitabine-plus-platinum-based-chemotherapy-for-first-line-treatment-of-hepatocholangiocarcinoma-an-ageo-french-multicentre-retrospective-study
#11
Maëva Salimon, Caroline Prieux-Klotz, David Tougeron, Vincent Hautefeuille, Morgane Caulet, Jérôme Gournay, Tamara Matysiak-Budnik, Jaafar Bennouna, Manuela Tiako Meyo, Thierry Lecomte, Aziz Zaanan, Yann Touchefeu
BACKGROUND: Hepatocholangiocarcinoma (cHCC-ICC) is a rare liver tumour for which no data on chemosensitivity exist. The aims of this multicentre study were to evaluate overall survival (OS), progression-free survival (PFS), and prognostic factors in cHCC-ICC treated by gemcitabine plus platinum as first-line. METHODS: Unresectable cHCC-ICC treated by gemcitabine plus platinum-based chemotherapy between 2008 and 2017 were retrospectively analysed. Diagnosis was based on histology or, in case of ICC or HCC histology, on discordant computerised tomography scan enhancement patterns associated with discordant serum tumour marker elevation suggesting the alternative tumour...
November 23, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29169180/mitochondria-targeted-antioxidant-mito-tempo-protects-against-aldosterone-induced-renal-injury-in-vivo
#12
Wei Ding, Tingyan Liu, Xiao Bi, Zhiling Zhang
BACKGROUND/AIMS: Growing evidence suggests mitochondrial dysfunction (MtD) and the Nlrp3 inflammasome play critical roles in chronic kidney disease (CKD) progression. We previously reported that Aldosterone (Aldo)-induced renal injury in vitro is directly caused by mitochondrial reactive oxygen species (mtROS)-mediated activation of the Nlrp3 inflammasome. Here we aimed to determine whether a mitochondria-targeted antioxidant (Mito-Tempo) could prevent Aldo-induced kidney damage in vivo...
November 23, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29169176/ablation-of-atg4b-suppressed-autophagy-and-activated-ampk-for-cell-cycle-arrest-in-cancer-cells
#13
Pei-Feng Liu, Chien-Jen Hsu, Wei-Lun Tsai, Jin-Shiung Cheng, Jih-Jung Chen, I-Fei Huang, Ho-Hsing Tseng, Hsueh-Wei Chang, Chih-Wen Shu
BACKGROUND/AIMS: ATG4B is a cysteine protease required for autophagy, which is a cellular catabolic pathway involved in energy balance. ATG4B expression is elevated during tumor growth in certain types of cancer, suggesting that ATG4B is an attractive target for cancer therapy. However, little is known about the mechanisms through which ATG4B deprivation suppresses the growth of cancer cells. METHODS: Cancer cells were transfected with either siRNA against ATG4B or an expression vector encoding wild-type ATG4BWT or encoding catalytic mutant ATG4BC74A to determine cell cycle progression by propidium iodide staining or by BrdU incorporation assay using flow cytometry...
November 23, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29169175/bufalin-inhibits-cellular-proliferation-and-cancer-stem-cell-like-phenotypes-via-upregulation-of-mir-203-in-glioma
#14
Tao Liu, Chanji Wu, Guohu Weng, Zhongyan Zhao, Xiangying He, Chuanyi Fu, Zhiyan Sui, Shi-Xiong Huang
BACKGROUND/AIMS: Prior studies have shown that bufalin inhibits cellular proliferation and induces apoptosis in various human cancers. MicroRNA-203 (miR-203) has been shown to function as an important regulator of tumor progression at various stages. In this study, we investigated the effect of miR-203 expression and bufalin treatment on glioma cell proliferation and stem cell-like phenotypes. METHODS: We used cell viability assay, colony formation assay, cell apoptosis assay and neurosphere formation assay to dectect the treatment effect of bufalin on U251 and U87 cells...
November 23, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29169174/melatonin-induced-changes-in-cytosolic-calcium-might-be-responsible-for-apoptosis-induction-in-tumour-cells
#15
Barbora Chovancova, Sona Hudecova, Lubomira Lencesova, Petr Babula, Ingeborg Rezuchova, Adela Penesova, Marian Grman, Roman Moravcik, Michal Zeman, Olga Krizanova
BACKGROUND/AIMS: Melatonin is a hormone transferring information about duration of darkness to the organism and is known to modulate several signaling pathways in the cells, e.g. generation of endoplasmic reticulum stress, oxidative status of the cells, etc. Melatonin has been shown to exert antiproliferative and cytotoxic effects on various human cancers. We proposed that this hormone can differently affect tumour cells and healthy cells. METHODS: We compared the effect of 24 h melatonin treatment on calcium transport (by fluorescent probes FLUO-3AM and Rhod-5N), ER stress (determined as changes in the expression of CHOP, XBP1 and fluorescently, using Thioflavin T), ROS formation (by CellROX® Green/Orange Reagent) and apoptosis induction (by Annexin-V-FLUOS/propidiumiodide) in two tumour cell lines - ovarian cancer cell line A2780 and stable cell line DLD1 derived from colorectal carcinoma, with non-tumour endothelial cell line EA...
November 23, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29169169/effects-and-interactions-of-prenatal-ethanol-exposure-a-post-weaning-high-fat-diet-and-gender-on-adult-hypercholesterolemia-occurrence-in-offspring-rats
#16
Yongjian Qi, Hanwen Luo, Shuwei Hu, Yimeng Wu, Jacques Magdalou, Liaobin Chen, Hui Wang
BACKGROUND/AIMS: Prenatal ethanol exposure (PEE) could induce intrauterine programming of hypothalamic-pituitary-adrenal axis-associated neuroendocrine metabolism, resulting in intrauterine growth retardation and susceptibility to adult hypercholesterolemia in offspring. This study aimed to analyse the effects and interactions of PEE, a post-weaning high-fat diet (HFD) and gender on the occurrence of adult hypercholesterolemia in offspring rats. METHODS: Wistar female rats were treated with ethanol (4 g/kg...
November 23, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29169161/digoxin-and-hypermagnesuria
#17
Luca Zanoli, Paolo Lentini, Pasquale Fatuzzo
In a recent issue of Nephron, Abu-Amer et al.[<xref ref-type="bibr" rid="ref1">1</xref>] reported the presence of hypermagnesuria in patients following acute intravenous administration of digoxin and suggested that the Na+/K+-ATPase γ-subunit, which is the pharmacological target of digoxin, can play a role in this process. Hypermagnesuria induced by digoxin may have important clinical consequences, particularly in the presence of inherited and acquired conditions associated with hypermagnesuria and hypomagnesemia...
November 23, 2017: Nephron
https://www.readbyqxmd.com/read/29169160/the-use-of-peritoneal-dialysis-in-phenobarbitone-toxicity-in-a-critically-unwell-neonate
#18
Amelia K Le Page, Alice E Stewart, Charles C Roehr, Lilian M Johnstone, Andis Graudins
BACKGROUND: Phenobarbitone (PB) is the first-line anti-convulsant for neonatal seizures. The use of peritoneal dialysis (PD) to enhance drug elimination in cases of neonatal PB overdose has not been reported. OBJECTIVE: To report a case of neonatal severe PB toxicity and review the elimination of PB by PD. METHODS: Assessment of PD drug clearance. RESULTS: A neonate with prolonged seizures was administered PB. Encephalopathy and myocardial failure developed, which were initially suspected to be secondary to hypoxia...
November 24, 2017: Neonatology
https://www.readbyqxmd.com/read/29169156/folliculotropism-does-not-affect-overall-survival-in-mycosis-fungoides-results-from-a-single-center-cohort-and-meta-analysis
#19
Mariah Giberson, Ahmed Mourad, Robert Gniadecki
BACKGROUND: Folliculotropic mycosis fungoides (FMF) is a distinct subtype of mycosis fungoides (MF) with unique clinicopathological features. The medical literature suggests that FMF has a more aggressive course and worse survival than classic MF. Previous studies do not use standardized treatment, and no studies have reported an association between treatment response and overall survival (OS). OBJECTIVE: To compare OS for MF, FMF, and Sézary syndrome (SS) patients...
November 24, 2017: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/29169148/selenite-induced-nitro-oxidative-stress-processes-in-arabidopsis-thaliana-and-brassica-juncea
#20
Árpád Molnár, Zsuzsanna Kolbert, Krisztina Kéri, Gábor Feigl, Attila Ördög, Réka Szőllősi, László Erdei
Extremes of selenium (Se) exert toxic effects on plants' physiological processes; although plant species tolerate Se differently. This study focuses on the effect of Se (0, 20, 50 or 100μM sodium selenite) on secondary nitro-oxidative stress processes mainly using in situ microscopic methods in non-accumulator Arabidopsis thaliana and secondary Se accumulator Brassica juncea. Relative Se tolerance or sensitivity of the species was evaluated based on growth parameters (fresh and dry weight, root growth) and cell viability...
November 20, 2017: Ecotoxicology and Environmental Safety
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