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https://www.readbyqxmd.com/read/28335560/serum-amyloid-a-production-is-triggered-by-sleep-deprivation-in-mice-and-humans-is-that-the-link-between-sleep-loss-and-associated-comorbidities
#1
Edson M de Oliveira, Bruna Visniauskas, Sergio Tufik, Monica L Andersen, Jair R Chagas, Ana Campa
Serum amyloid A (SAA) was recently associated with metabolic endotoxemia, obesity and insulin resistance. Concurrently, insufficient sleep adversely affects metabolic health and is an independent predisposing factor for obesity and insulin resistance. In this study we investigated whether sleep loss modulates SAA production. The serum SAA concentration increased in C57BL/6 mice subjected to sleep restriction (SR) for 15 days or to paradoxical sleep deprivation (PSD) for 72 h. Sleep restriction also induced the upregulation of Saa1...
March 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28335515/dehydroepiandrosterone-dhea-feeding-protects-liver-steatosis-in-obese-breast-cancer-rat-model
#2
Reza Hakkak, Andrea Bell, Soheila Korourian
Obesity is a major health problem in the US and globally. Obesity is associated with the risk of cardiovascular disease, type 2 diabetes, cancers, hyperlipidemia, and liver steatosis development. Dehydroepiandrosterone (DHEA) is a dietary supplement used as an anti-obesity supplement. Previously, we reported that DHEA feeding protects 7,12-dimethylbenz(a)anthracene (DMBA)-induced mammary tumors. The objectives of this study were to investigate the effects of obesity and DHEA feeding on liver steatosis, body weight gain, and serum DHEA, DHEA sulfate (DHEA-S), insulin-like growth factor-1 (IGF-1), and insulin-like growth factor binding protein-3 (IGFBP-3) levels...
March 20, 2017: Scientia Pharmaceutica
https://www.readbyqxmd.com/read/28335485/intra-amniotic-administration-of-raffinose-and-stachyose-affects-the-intestinal-brush-border-functionality-and-alters-gut-microflora-populations
#3
Sarina Pacifici, Jaehong Song, Cathy Zhang, Qiaoye Wang, Raymond P Glahn, Nikolai Kolba, Elad Tako
This study investigates the effectiveness of two types of prebiotics-stachyose and raffinose-which are present in staple food crops that are widely consumed in regions where dietary Fe deficiency is a health concern. The hypothesis is that these prebiotics will improve Fe status, intestinal functionality, and increase health-promoting bacterial populations in vivo (Gallus gallus). By using the intra-amniotic administration procedure, prebiotic treatment solutions were injected in ovo (day 17 of embryonic incubation) with varying concentrations of a 1...
March 19, 2017: Nutrients
https://www.readbyqxmd.com/read/28335469/comparison-of-the-pharmacokinetic-properties-of-hemoglobin-based-oxygen-carriers
#4
REVIEW
Kazuaki Taguchi, Keishi Yamasaki, Toru Maruyama, Masaki Otagiri
Hemoglobin (Hb) is an ideal material for use in the development of an oxygen carrier in view of its innate biological properties. However, the vascular retention of free Hb is too short to permit a full therapeutic effect because Hb is rapidly cleared from the kidney via glomerular filtration or from the liver via the haptogloblin-CD 163 pathway when free Hb is administered in the blood circulation. Attempts have been made to develop alternate acellular and cellular types of Hb based oxygen carriers (HBOCs), in which Hb is processed via various routes in order to regulate its pharmacokinetic properties...
March 18, 2017: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/28335458/in-vitro-antioxidant-activity-and-in-vivo-anti-fatigue-effect-of-sea-horse-hippocampus-peptides
#5
Zebin Guo, Duanquan Lin, Juanjuan Guo, Yi Zhang, Baodong Zheng
This study investigated changes the in vitro antioxidant activity of Hippocampus polypeptides during enzymatic hydrolysis, including the effects of enzyme species, enzyme concentration, material-liquid ratio, hydrolysis time, pH, and temperature of the reaction system. Its in vivo anti-fatigue activity was also studied. Hippocampus peptide prepared by papain digestion exhibited the highest 1,1-diphenyl-2-picryl-hydrazyl free radical scavenging rate (71.89% ± 1.50%) and strong hydroxyl radical scavenging rate (75...
March 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28335388/a-combination-of-flaxseed-oil-and-astaxanthin-improves-hepatic-lipid-accumulation-and-reduces-oxidative-stress-in-high-fat-diet-fed-rats
#6
Jiqu Xu, Shuang Rong, Hui Gao, Chang Chen, Wei Yang, Qianchun Deng, Qingde Huang, Lingyun Xiao, Fenghong Huang
Hepatic lipid accumulation and oxidative stress are crucial pathophysiological mechanisms for non-alcoholic fatty liver disease (NAFLD). Thus, we examined the effect of a combination of flaxseed oil (FO) and astaxanthin (ASX) on hepatic lipid accumulation and oxidative stress in rats fed a high-fat diet. ASX was dissolved in flaxseed oil (1 g/kg; FO + ASX). Animals were fed diets containing 20% fat, where the source was lard, or 75% lard and 25% FO + ASX, or 50% lard and 50% FO + ASX, or FO + ASX, for 10 weeks...
March 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28335386/revisiting-the-metabolism-and-bioactivation-of-ketoconazole-in-human-and-mouse-using-liquid-chromatography-mass-spectrometry-based-metabolomics
#7
Ju-Hyun Kim, Won-Gu Choi, Sangkyu Lee, Hye Suk Lee
Although ketoconazole (KCZ) has been used worldwide for 30 years, its metabolic characteristics are poorly described. Moreover, the hepatotoxicity of KCZ limits its therapeutic use. In this study, we used liquid chromatography-mass spectrometry-based metabolomics to evaluate the metabolic profile of KCZ in mouse and human and identify the mechanisms underlying its hepatotoxicity. A total of 28 metabolites of KCZ, 11 of which were novel, were identified in this study. Newly identified metabolites were classified into three categories according to the metabolic positions of a piperazine ring, imidazole ring, and N-acetyl moiety...
March 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28335383/a-biomedical-investigation-of-the-hepatoprotective-effect-of-radix-salviae-miltiorrhizae-and-network-pharmacology-based-prediction-of-the-active-compounds-and-molecular-targets
#8
Ming Hong, Sha Li, Ning Wang, Hor-Yue Tan, Fan Cheung, Yibin Feng
Radix salviae miltiorrhizae (Danshen in Chinese), a classic traditional Chinese medicine (TCM) herb, has been used for centuries to treat liver diseases. In this study, the preventive and curative potential of Danshen aqueous extract on acute/chronic alcoholic liver disease (ALD) and non-alcoholic fatty liver disease (NAFLD) was studied. The in vivo results indicated that Danshen could alleviate hepatic inflammation, fatty degeneration, and haptic fibrogenesis in ALD and NAFLD models. In the aspect of mechanism of action, the significant reduction in MDA levels in both ALD and NAFLD models implies the decreased levels of oxidative stress by Danshen...
March 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28335378/bioavailability-of-microencapsulated-iron-from-fortified-bread-assessed-using-piglet-model
#9
Malgorzata A Bryszewska, Luca Laghi, Augusta Zannoni, Andrea Gianotti, Francesca Barone, Danielle L Taneyo Saa, Maria L Bacci, Domenico Ventrella, Monica Forni
The aim of this study was to investigate the influence of oral iron supplementation, in the form of fortified breads, on the growth performance, health, iron status parameters, and fecal metabolome of anemic piglets. A study was conducted on 24 hybrid (Large White × Landrace × Duroc) piglets. From day 44, the post-natal 12 piglets were supplemented with 100 g of one of two experimental breads, each fortified with 21 mg of ferrous sulphate, either encapsulated or not. After one week of oral supplementation, hematological parameters (hematocrit value, hemoglobin, and red blood cells) showed statistically significant differences (p ≤ 0...
March 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28335288/biosynthesis-of-silver-nanoparticles-using-taxus-yunnanensis-callus-and-their-antibacterial-activity-and-cytotoxicity-in-human-cancer-cells
#10
Qian Hua Xia, Yan Jun Ma, Jian Wen Wang
Plant constituents could act as chelating/reducing or capping agents for synthesis of silver nanoparticles (AgNPs). The green synthesis of AgNPs has been considered as an environmental friendly and cost-effective alternative to other fabrication methods. The present work described the biosynthesis of AgNPs using callus extracts from Taxus yunnanensis and evaluated their antibacterial activities in vitro and potential cytotoxicity in cancer cells. Callus extracts were able to reduce silver nitrate at 1 mM in 10 min...
September 1, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335271/distribution-of-iron-oxide-core-titanium-dioxide-shell-nanoparticles-in-vx2-tumor-bearing-rabbits-introduced-by-two-different-delivery-modalities
#11
Tamer Refaat, Derek West, Samar El Achy, Vamsi Parimi, Jasmine May, Lun Xin, Kathleen R Harris, William Liu, Michael Beau Wanzer, Lydia Finney, Evan Maxey, Stefan Vogt, Reed A Omary, Daniele Procissi, Andrew C Larson, Tatjana Paunesku, Gayle E Woloschak
This work compares intravenous (IV) versus fluoroscopy-guided transarterial intra-catheter (IC) delivery of iron oxide core-titanium dioxide shell nanoparticles (NPs) in vivo in VX2 model of liver cancer in rabbits. NPs coated with glucose and decorated with a peptide sequence from cortactin were administered to animals with developed VX2 liver cancer. Two hours after NPs delivery tumors, normal liver, kidney, lung and spleen tissues were harvested and used for a series on histological and elemental analysis tests...
August 3, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335269/galactosylated-liposomes-for-targeted-co-delivery-of-doxorubicin-vimentin-sirna-to-hepatocellular-carcinoma
#12
Hea Ry Oh, Hyun-Young Jo, James S Park, Dong-Eun Kim, Je-Yoel Cho, Pyung-Hwan Kim, Keun-Sik Kim
The combination of therapeutic nucleic acids and chemotherapeutic drugs has shown great promise for cancer therapy. In this study, asialoglycoprotein receptors (ASGPR) targeting-ligand-based liposomes were tested to determine whether they can co-deliver vimentin siRNA and doxorubicin to hepatocellular carcinoma (HCC) selectively. To achieve this goal, we developed an ASGPR receptor targeted co-delivery system called gal-doxorubicin/vimentin siRNA liposome (Gal-DOX/siRNA-L). The Gal-DOX/siRNA-L was created via electrostatic interaction of galactose linked-cationic liposomal doxorubicin (Gal-DOX-L) on vimentin siRNA...
July 30, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335084/identification-of-new-bmp6-pro-peptide-mutations-in-patients-with-iron-overload
#13
Chiara Piubelli, Annalisa Castagna, Giacomo Marchi, Monica Rizzi, Fabiana Busti, Sadaf Badar, Monia Marchetti, Marco De Gobbi, Antonella Roetto, Luciano Xumerle, Eda Suku, Alejandro Giorgetti, Massimo Delledonne, Oliviero Olivieri, Domenico Girelli
Hereditary Hemochromatosis (HH) is a genetically heterogeneous disorder caused by mutations in at least 5 different genes (HFE, HJV, TFR2, SLC40A1, HAMP) involved in the production or activity of the liver hormone hepcidin, a key regulator of systemic iron homeostasis. Nevertheless, patients with an HH-like phenotype that remains completely/partially unexplained despite extensive sequencing of known genes are not infrequently seen at referral centers, suggesting a role of still unknown genetic factors. A compelling candidate is Bone Morphogenetic Protein 6 (BMP6), which acts as a major activator of the BMP-SMAD signaling pathway, ultimately leading to the upregulation of hepcidin gene transcription...
March 23, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28335007/a-class-of-circadian-long-non-coding-rnas-mark-enhancers-modulating-long-range-circadian-gene-regulation
#14
Zenghua Fan, Meng Zhao, Parth D Joshi, Ping Li, Yan Zhang, Weimin Guo, Yichi Xu, Haifang Wang, Zhihu Zhao, Jun Yan
Circadian rhythm exerts its influence on animal physiology and behavior by regulating gene expression at various levels. Here we systematically explored circadian long non-coding RNAs (lncRNAs) in mouse liver and examined their circadian regulation. We found that a significant proportion of circadian lncRNAs are expressed at enhancer regions, mostly bound by two key circadian transcription factors, BMAL1 and REV-ERBα. These circadian lncRNAs showed similar circadian phases with their nearby genes. The extent of their nuclear localization is higher than protein coding genes but less than enhancer RNAs...
March 8, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28334992/utility-of-chromogranin-b-compared-with-chromogranin-a-as-a-biomarker-in-japanese-patients-with-pancreatic-neuroendocrine-tumors
#15
Masami Miki, Tetsuhide Ito, Masayuki Hijioka, Lingaku Lee, Kohei Yasunaga, Keijiro Ueda, Takashi Fujiyama, Yuichi Tachibana, Ken Kawabe, Robert T Jensen, Yoshihiro Ogawa
Objective: Currently, serum chromogranin A is a well-established biomarker for pancreatic neuroendocrine tumors; however, other pancreatic diseases, oral use of a proton pump inhibitor and renal impairment can affect chromogranin A. Meanwhile, chromogranin B, belonging to the same granin family as chromogranin A, is not fully examined in these conditions. The present study aimed to evaluate the utility of chromogranin B as a pancreatic neuroendocrine tumor biomarker. Methods: Serum chromogranin B levels were determined by radioimmunoassay and serum chromogranin A levels by enzyme-linked immunosorbent assay in pancreatic neuroendocrine tumor (n = 91) and other pancreatic conditions, and in healthy people (n = 104), to assess the relationships with clinical features...
March 17, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28334911/mertk-rs4374383-variant-predicts-incident-nonalcoholic-fatty-liver-disease-and-diabetes-role-of-mononuclear-cell-activation-and-adipokine-response-to-dietary-fat
#16
Giovanni Musso, Maurizio Cassader, Franco De Michieli, Elena Paschetta, Silvia Pinach, Francesca Saba, Daria Bongiovanni, Luciana Framarin, Mara Berrutti, Nicola Leone, Stefania Corvisieri, Renato Parente, Federica Molinaro, Antonio Sircana, Bo Simona, Roberto Gambino
The loss-of-function rs4374383 G>A variant in Myeloid-epithelial-reproductive Tyrosine Kinase (MERTK) gene has been linked to hepatic fibrosis in chronic liver diseases. MERTK is expressed by immune and non-immune cells involved in inflammation, metabolism and vascular homeostasis. We assessed the impact of MERTK rs4374383 G>A variant on nonalcoholic fatty liver disease (NAFLD) incidence and severity and on glucose and lipid metabolism.We followed-up 305 healthy nonobese nondiabetic, metabolic syndrome-free insulin sensitive participants in a population-based study, characterized for MERTK G>A polymorphism, adipokine profile and inflammatory markers...
March 8, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334808/downregulation-of-pathways-implicated-in-liver-inflammation-and-tumorigenesis-of-glycogen-storage-disease-type-ia-mice-receiving-gene-therapy
#17
Goo-Young Kim, Joon Hyun Kwon, Jun-Ho Cho, Lisa Zhang, Brian C Mansfield, Janice Y Chou
Glycogen storage disease type Ia (GSD-Ia) is characterized by impaired glucose homeostasis and long-term risks of hepatocellular adenoma (HCA) and carcinoma (HCC). We have shown that the non-tumor-bearing (NT), recombinant adeno-associated virus (rAAV) vector-treated GSD-Ia mice (AAV-NT mice) expressing a wide range (0.9-63%) of normal hepatic glucose-6-phosphatase-α activity maintain glucose homeostasis and display physiologic features mimicking animals living under calorie restriction (CR). We now show that in AAV-NT mice, the signaling pathways of the CR mediators, AMP-activated protein kinase (AMPK) and sirtuin-1 are activated...
March 13, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334710/prevention-of-tlr9-pathway-in-warm-ischemia-in-porcine-donor-liver-after-cardiac-death
#18
Zigong Shao, Baoping Jiao, Dehui Yi, Tingting Liu, Qi Pan, Ying Cheng, Hao Liu
OBJECTIVE: To investigate effect of warm ischemia after cardiac death on activation of TLR9 pathway in porcine liver. METHODS: Donor of cardiac death (DCD) model was established with Duroc, Landrace, Large White crossbred pigs. Liver tissues from the animals were harvested at 0, 5, 10, 15, 25 and 30 minutes after warm ischemia for analysis of expression of TLR9, IRF7, IFN-β, and TNF-α at mRNA and protein levels by real-time PCR and western blot, respectively, and for assessment of NF-κB/DNA binding activity by western blot detection of p65 protein...
March 27, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28334655/morpholine-or-methylpiperazine-and-salicylaldimine-based-heteroleptic-square-planner-platinum-ii-complexes-in%C3%A2-vitro-anticancer-study-and-growth-retardation-effect-on-e-%C3%A2-coli
#19
Faiz-Ur Rahman, Amjad Ali, Inam Ullah Khan, Hong-Quan Duong, Shang-Bo Yu, Yue-Jian Lin, Hui Wang, Zhan-Ting Li, Dan-Wei Zhang
Morpholine and methylpiperazine are among the most important structural parts of different drugs including organic chemotherapeutic agents. In the current study we incorporated these entities as co-ligand and a series of structurally related mono- and di-metallic square planner Pt(II) complexes (Pt(II)(salicylaldimine)(morpholine)Cl C1a-C3a, Pt(II)(salicylaldimine) (methylpiperazine)Cl C1b-C3b, di-metallic Pt(II)2(bis-salicylaldimine)(morpholine)2Cl2C4a and Pt(II)2(bis-salicylaldimine)(methylpiperazine)2Cl2C4b were prepared...
March 18, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28334654/synthesis-and-biological-evaluation-of-a-new-series-of-benzimidazole-derivatives-as-antimicrobial-antiquorum-sensing-and-antitumor-agents
#20
N S El-Gohary, M I Shaaban
New benzimidazole derivatives were synthesized and assessed for antimicrobial efficacy toward Escherichia coli, Bacillus cereus, Staphylococcus aureus, Candida albicans and Aspergillus fumigatus 293. Results indicated that compounds 3c and 3n have promising activity toward S. aureus, whereas 3i exhibited remarkable efficacy toward B. cereus. Moreover, compound 3c was proved to be the most active antifungal analog toward C. albicans. On the other hand, 3n displayed the highest activity against A. fumigatus 293...
March 14, 2017: European Journal of Medicinal Chemistry
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