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https://www.readbyqxmd.com/read/28629388/the-albumin-exendin-4-recombinant-protein-e2hsa-improves-glycemic-control-and-%C3%AE-cell-function-in-spontaneous-diabetic-kkay-mice
#1
Caina Li, Shaocong Hou, Shuainan Liu, Yi Huan, Sujuan Sun, Quan Liu, Zhufang Shen
BACKGROUND: E2HSA is a genetic fusion protein that consists of two tandem exendin-4 molecules that are covalently bonded to recombinant human serum albumin via a peptide linker. Previous studies have demonstrated that E2HSA significantly decreased blood glucose levels, improved β-cell function and promoted β-cell proliferation in diabetic db/dB mice. This study aimed to evaluate the benefits of E2HSA on glucose and lipid metabolism in a spontaneous diabetes animal model, KKAy mice. METHODS: E2HSA was acutely administered at doses of 1, 3 and 9 mg/kg by subcutaneous injection in diabetic KKAy mice with exendin-4 (2 μg/kg) as a positive reference, and then the non-fasting blood glucose and food intake levels were dynamically monitored...
June 19, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28625546/the-lateral-parabrachial-nucleus-and-central-angiotensinergic-mechanisms-in-the-control-of-sodium-intake-induced-by-different-stimuli
#2
Camila F Roncari, Richard B David, Patrícia M De Paula, Débora S A Colombari, Laurival A De Luca, Eduardo Colombari, José V Menani
Angiotensin II (ANG II) is a typical facilitatory stimulus for sodium appetite. Surprisingly, hyperosmolarity and central cholinergic stimulation, two classical antinatriorexigenic stimuli, also facilitate NaCl intake when they are combined with injections of the α2-adrenoceptor/imidazoline agonist moxonidine into the lateral parabrachial nucleus (LPBN). In the present study, we tested the relative importance of central angiotensinergic and cholinergic mechanisms for the control of water and NaCl intake by combining different dipsogenic or natriorexigenic stimuli with moxonidine injection into the LPBN...
June 15, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28624083/effect-of-the-type-of-brewing-water-on-the-chemical-composition-sensory-quality-and-antioxidant-capacity-of-chinese-teas
#3
Yong-Quan Xu, Chun Zou, Ying Gao, Jian-Xin Chen, Fang Wang, Gen-Sheng Chen, Jun-Feng Yin
The physicochemical characteristics, sensory quality, and antioxidant activity of tea infusions prepared with purified water (PW), mineral water (MW), mountain spring water (MSW), and tap water (TW) from Hangzhou were investigated. The results showed that the taste quality, catechin concentration, and antioxidant capacity of green, oolong, and black tea infusions prepared using MW and TW were significantly lower than those prepared using PW. Extraction of catechins and caffeine was reduced with high-conductivity water, while high pH influenced the stability of catechins...
December 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28620364/a-multiplex-rt-pcr-assay-for-s-aureus-l-monocytogenes-and-salmonella-spp-detection-in-raw-milk-with-pre-enrichment
#4
Tian Ding, Yuanjie Suo, Zhaohuan Zhang, Donghong Liu, Xingqian Ye, Shiguo Chen, Yong Zhao
This study firstly developed a multiplex real-time PCR (RT-PCR) technique combined with a pre-enrichment step to simultaneously detect Staphylococcus aureus (S. aureus), Listeria monocytogenes (L. monocytogenes) and Salmonella spp. in raw milk and the dairy farm environment (feces, soil, feed, water) in one reaction. Brain heart infusion (BHI) broth was selected for the enrichment step to increase the density of the target bacteria by using an incubation of 4 h before multiplex RT-PCR. The results showed that the detection limit of the multiplex real-time assay was approximately 10(2) CFU/mL for pure cultures and artificially contaminated milk without enrichment, while 12, 14, and 10 CFU/25 mL, respectively, for S...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28620254/isolation-morphological-identification-and-in-vitro-antibacterial-activity-of-endophytic-bacteria-isolated-from-azadirachta-indica-neem-leaves
#5
Ankit Kumar Singh, Rajesh Kumar Sharma, Varsha Sharma, Tanmay Singh, Rajesh Kumar, Dimple Kumari
AIM: The objective of this study was to isolate endophytic bacteria from Azadirachta indica (neem) leaves, their identification and investigate their antibacterial activity against three Gram-positive bacteria, Staphylococcus aureus, Streptococcus pyogenes and Bacillus cereus and Gram-negative bacteria Escherichia coli, Salmonella Typhimurium and Klebsiella pneumoniae. MATERIALS AND METHODS: Fresh leaves of A. indica (neem) was procured from the Department of Botany, JNKVV, Jabalpur...
May 2017: Veterinary World
https://www.readbyqxmd.com/read/28614828/relationship-between-sodium-intake-and-water-intake-the-false-and-the-true
#6
Lise Bankir, Julie Perucca, Peter Norsk, Nadine Bouby, Morten Damgaard
Generally, eating salty food items increases thirst. Thirst is also stimulated by the experimental infusion of hypertonic saline. But, in steady state, does the kidney need a higher amount of water to excrete sodium on a high than on a low sodium intake? This issue is still controversial. The purpose of this review is to provide examples of how the kidney handles water in relation to salt intake/output. It is based on re-analysis of previously published studies in which salt intake was adjusted to several different levels in the same subjects, and in databases of epidemiologic studies in populations on an ad libitum diet...
2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28596118/neuroprotective-role-of-gabab-receptor-modulation-against-streptozotocin-induced-behavioral-and-biochemical-abnormalities-in-rats
#7
Kushal Kumar, Harmanpreet Kaur, Rahul Deshmukh
Stimulation as well as inhibition of GABAB (Gamma amino butyric acid) receptors has been reported to show beneficial effects in Alzheimer's disease (AD). Experimental evidences suggest that the use of GABAergic agents could influence learning and memory. The present study was designed to investigate the possible role of GABAB receptors in streptozotocin (STZ)-induced behavioral and biochemical abnormalities in rats. Herein STZ was infused (3mg/kg) bilaterally on alternate days (day 1 and day 3) to produce experimental dementia in rats...
June 6, 2017: Neuroscience
https://www.readbyqxmd.com/read/28596009/subzero-celsius-separations-in-three-zone-temperature-controlled-hydrogen-deuterium-exchange-mass-spectrometry
#8
Thomas E Wales, Keith E Fadgen, Michael J Eggertson, John R Engen
Hydrogen deuterium exchange mass spectrometry (HDX MS) reports on the conformational landscape of proteins by monitoring the exchange between backbone amide hydrogen atoms and deuterium in the solvent. To maintain the label for analysis, quench conditions of low temperature and pH are required during the chromatography step performed after protease digestion but before mass spectrometry. Separation at 0°C is often chosen as this is the temperature where the most deuterium can be recovered without freezing of the typical water and acetonitrile mobile phases...
June 3, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28590221/evaluation-of-pyriproxyfen-dissemination-via-aedes-albopictus-from-a-point-source-larvicide-application-in-northeast-florida
#9
Aaron M Lloyd, Muhammad Farooq, Alden S Estep, Rui-De Xue, Daniel L Kline
The Asian tiger mosquito, Aedes albopictus , ranks among the most important vectors of dengue fever, Zika virus, and chikungunya virus. With no specific medications or vaccines available, vector control is the only way to combat these diseases. Autodissemination of the insect growth regulator pyriproxyfen (NyGuard®) from a point-source treatment was evaluated in field settings in northeast Florida. The objective of this study was to investigate the possibility of pyriproxyfen dissemination from a treatment site to nontreated oviposition sites via the skip oviposition behavior of Ae...
June 2017: Journal of the American Mosquito Control Association
https://www.readbyqxmd.com/read/28581010/echinacoside-ameliorates-the-memory-impairment-and-cholinergic-deficit-induced-by-amyloid-beta-peptides-via-the-inhibition-of-amyloid-deposition-and-toxicology
#10
Young-Ji Shiao, Muh-Hwan Su, Hang-Ching Lin, Chi-Rei Wu
Echinacoside is a phenylethanoid glycoside and possesses neuroprotective activity in vitro and in vivo. This study investigates the role of the amyloid cascade and central neuronal function on the protective effects of echinacoside in amyloid β peptide 1-42 (Aβ 1-42)-treated SH-SY5Y cells and an Aβ 1-42-infused rat. Echinacoside inhibited Aβ 1-42 oligomerization in vitro and restored the cell viability that was reduced by Aβ 1-42 in SH-SY5Y cells. Intracisternal infusion with Aβ 1-42 by an osmotic pump caused cognitive deficits, an increase in amyloid deposition and acetylcholinesterase activities, and a decrease in the brain's levels of acetylcholine and dopamine...
June 5, 2017: Food & Function
https://www.readbyqxmd.com/read/28578886/antibacterial-properties-of-chitosan-nanoparticles-and-propolis-associated-with-calcium-hydroxide-against-single-and-multispecies-biofilms-an-in%C3%A2-vitro-and-in-situ-study
#11
Aldo Del Carpio-Perochena, Anil Kishen, Rafael Felitti, Anjali Y Bhagirath, Manoj R Medapati, Christopher Lai, Rodrigo S Cunha
INTRODUCTION: The aim of this study was to evaluate the efficacy of chitosan nanoparticles (CNPs) and ethanolic propolis extract (EPE) incorporated into a calcium hydroxide paste (Ca[OH]2) to kill bacterial biofilms. METHODS: Human root canal dentin was infected with Enterococcus faecalis for 21 days and also intraorally for 48 hours followed by incubation in brain-heart infusion for 48 hours to standardize biofilm growth. Ca(OH)2 pastes associated or not with CNPs or EPE were tested on biofilms for 7 and 14 days...
June 1, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28578486/angelica-tenuissima-nakai-ameliorates-cognitive-impairment-and-promotes-neurogenesis-in-mouse-model-of-alzheimer-s-disease
#12
Minji Choi, Younghyurk Lee, Seung-Hun Cho
OBJECTIVE: To research Angelica tenuissima Nakai (ATN) for use in novel Alzheimer's disease (AD) therapeutics. METHODS: The effect of a 30% ethanol extract of ATN (KH032) on AD-like cognitive impairment and neuropathological and neuroinflammatory changes induced by bilateral intracerebroventricular injections of β-amyloid (Aβ) peptide (Aβ1-42) was investigated. Male C57Bl/6 mice were randomly divided into 4 groups, 10 in each group. KH032-treated groups were administrated with a low or high dose of KH032 (50 and 200 mg/kg, respectively), intragastrically for 16 days; distilled water was applied in the sham and negative groups...
June 3, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28573057/cisplatin-induced-renal-salt-wasting-requiring-over-12-liters-of-3-saline-replacement
#13
Phuong-Chi Pham, Pavani Reddy, Shaker Qaqish, Ashvin Kamath, Johana Rodriguez, David Bolos, Martina Zalom, Phuong-Thu Pham
Cisplatin is known to induce Fanconi syndrome and renal salt wasting (RSW). RSW typically only requires transient normal saline (NS) support. We report a severe RSW case that required 12 liters of 3% saline. A 57-year-old woman with limited stage small cell cancer was admitted for cisplatin (80 mg/m(2)) and etoposide (100 mg/m(2)) therapy. Patient's serum sodium (SNa) decreased from 138 to 133 and 125 mEq/L within 24 and 48 hours of cisplatin therapy, respectively. A diagnosis of syndrome of inappropriate antidiuretic hormone secretion (SIADH) was initially made...
2017: Case Reports in Nephrology
https://www.readbyqxmd.com/read/28560810/changes-of-cortical-activation-in-swallowing-following-high-frequency-repetitive-transcranial-magnetic-stimulation-in-older-adults
#14
J-W Park, G-J Sim, H-J Kim, J-S Yeo, H-J Hong, B S Kwon
BACKGROUND: This study explored whether high-frequency repetitive transcranial magnetic stimulation (rTMS) can induce positive changes in the cortical areas of older adults who do not have functional difficulties in swallowing. METHODS: Ten healthy, right-handed, elderly volunteers were subjected to 18F-labeled fluorodeoxyglucose positron emission tomography(FDG-PET) scans when at rest, swallowing before rTMS, and swallowing after rTMS. During the swallowing study, water was infused orally via a catheter at a rate of 600 mL/h...
May 31, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28558795/non-caloric-sweetener-provides-magnetic-resonance-imaging-contrast-for-cancer-detection
#15
Puneet Bagga, Mohammad Haris, Kevin D'Aquilla, Neil E Wilson, Francesco M Marincola, Mitchell D Schnall, Hari Hariharan, Ravinder Reddy
BACKGROUND: Image contrast enhanced by exogenous contrast agents plays a crucial role in the early detection, characterization, and determination of the precise location of cancers. Here, we investigate the feasibility of using a non-nutritive sweetener, sucralose (commercial name, Splenda), as magnetic resonance imaging (MRI) contrast agent for cancer studies. METHODS: High-resolution nuclear-magnetic-resonance spectroscopy and MR studies on sucralose solution phantom were performed to detect the chemical exchange saturation transfer (CEST) property of sucralose hydroxyl protons with bulk water (sucCEST)...
May 30, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28554734/effects-of-chronic-intracerebroventricular-infusion-of-neurosecretory-protein-gl-on-body-mass-and-food-and-water-intake-in-chicks
#16
Kenshiro Shikano, Masaki Kato, Eiko Iwakoshi-Ukena, Megumi Furumitsu, Daichi Matsuura, Keiko Masuda, Tetsuya Tachibana, George E Bentley, Lance J Kriegsfeld, Kazuyoshi Ukena
Recently, we discovered a novel cDNA encoding the precursor of a small secretory protein, neurosecretory protein GL (NPGL), in the chicken mediobasal hypothalamus. In this study, immunohistochemical analysis revealed that NPGL was produced in the infundibular and medial mammillary nuclei of the mediobasal hypothalamus, with immunoreactive fibers also detected in the hypothalamus and the median eminence. As it is known that these regions are involved in feeding behavior in chicks, we surveyed the effects of chronic intracerebroventricular infusion of NPGL on feeding behavior and body mass for a period of two weeks...
May 26, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28552746/chronic-administration-of-sodium-nitrite-prevents-hypertension-and-protects-arterial-endothelial-function-by-reducing-oxidative-stress-in-angiotensin-ii-infused-mice
#17
Wei Chih Ling, Mohd Rais Mustafa, Paul M Vanhoutte, Dharmani Devi Murugan
AIM: Endothelial dysfunction accompanied by an increase in oxidative stress is a key event leading to hypertension. As dietary nitrite has been reported to exert antihypertensive effect, the present study investigated whether chronic oral administration of sodium nitrite improves vascular function in conduit and resistance arteries of hypertensive animals with elevated oxidative stress. METHODS: Sodium nitrite (50mg/L) was given to angiotensin II-infused hypertensive C57BL/6J (eight to ten weeks old) mice for two weeks in the drinking water...
May 26, 2017: Vascular Pharmacology
https://www.readbyqxmd.com/read/28542568/nesfatin-1-like-peptide-is-a-novel-metabolic-factor-that-suppresses-feeding-and-regulates-whole-body-energy-homeostasis-in-male-wistar-rats
#18
Kavishankar Gawli, Naresh Ramesh, Suraj Unniappan
Nucleobindin-1 has high sequence similarity to nucleobindin-2, which encodes the anorectic and metabolic peptide, nesfatin-1. We previously reported a nesfatin-1-like peptide (NLP), anorectic in fish and insulinotropic in mice islet beta-like cells. The main objective of this research was to determine whether NLP is a metabolic regulator in male Wistar rats. A single intraperitoneal (IP) injection of NLP (100 μg/kg BW) decreased food intake and increased ambulatory movement, without causing any change in total activity or energy expenditure when compared to saline-treated rats...
2017: PloS One
https://www.readbyqxmd.com/read/28540814/lyso-thermosensitive-liposomal-doxorubicin-for-treatment-of-bladder-cancer
#19
Andrew S Mikhail, Ayele H Negussie, William F Pritchard, Dieter Haemmerich, David Woods, Ivane Bakhutashvili, Juan Esparza-Trujillo, Sam J Brancato, John Karanian, Piyush K Agarwal, Bradford J Wood
PURPOSE: To evaluate lyso-thermosensitive liposomal doxorubicin (LTLD, ThermoDox(®)) in combination with loco-regional mild hyperthermia (HT) for targeted drug delivery to the bladder wall and potential treatment of bladder cancer. MATERIAL AND METHODS: Porcine in vivo studies were performed with the following groups: (i) intravenous (IV) LTLD with hyperthermia (LTLD + HT); (ii) IV doxorubicin (DOX) with hyperthermia (IV DOX + HT) and (iii) IV LTLD without hyperthermia (LTLD - HT)...
May 10, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28535670/ultrafast-spectroscopy-reveals-electron-transfer-cascade-that-improves-hydrogen-evolution-with-carbon-nitride-photocatalysts
#20
Kathryn L Corp, Cody W Schlenker
Solar hydrogen generation from water represents a compelling component of a future sustainable energy portfolio. Recently, chemically robust heptazine-based polymers known as graphitic carbon nitrides (g-C3N4) have emerged as promising photocatalysts for hydrogen evolution using visible light while withstanding harsh chemical environments. However, since g-C3N4 electron-transfer dynamics are poorly understood, rational design rules for improving activity remain unclear. Here, we use visible and near-infrared femtosecond transient absorption (TA) spectroscopy to reveal an electron-transfer cascade that correlates with a near-doubling in photocatalytic activity from 2050 to 3810 μmol h(-1) g(-1) when we infuse a suspension of bulk g-C3N4 with 10% mass loading of chemically exfoliated carbon nitride...
June 2, 2017: Journal of the American Chemical Society
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