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https://www.readbyqxmd.com/read/28944309/particle-coatings-but-not-silver-ions-mediate-genotoxicity-of-ingested-silver-nanoparticles-in-a-mouse-model
#1
Sameera Nallanthighal, Cadia Chan, Dhruba J Bharali, Shaker A Mousa, Elizabeth Vásquez, Ramune Reliene
Incorporation of silver nanoparticles (AgNPs) in toothpaste, food containers, dietary supplements and other consumer products can result in oral exposure to AgNPs and/or silver ions (Ag(+)) released from the surface of AgNPs. To examine whether ingestion of AgNPs or Ag(+) results in genotoxic damage and whether AgNP coatings modulate the effect, we exposed mice orally to 20 nm citrate-coated AgNPs, polyvinylpyrrolidone (PVP)-coated AgNPs, silver acetate or respective vehicles at a 4 mg/kg dose (equivalent to 800x the EPA reference dose for Ag) for 7 days...
January 2017: NanoImpact
https://www.readbyqxmd.com/read/28941230/effects-of-rumen-protected-pantothenate-supplementation-on-lactation-performance-ruminal-fermentation-nutrient-digestion-and-blood-metabolites-in-dairy-cows
#2
Wang Cong, Liu Qiang, Li He Qiong, Wu Xiao Xu, Gang Guo, Wen Jie Huo, Pei Cai Xia, Zhang Yan Li, Zhang Shuan Lin
BACKGROUND: Lactation performance of dairy cow has considerably increased with animal breeding and management improvement in recent years. Ruminal net synthesized pantothenic acid is insufficient to meet the requirement of high producing dairy cows. The objective was to investigate the effects of rumen-protected pantothenate (RPP) on lactation performance, ruminal fermentation, nutrient digestion and blood metabolites in dairy cows. RESULTS: Dry matter (DM) intake tended to increase, whereas milk yields, milk fat percentage and yield, body condition score (BCS) changes and net energy output except for maintance increased linearly with increasing RPP supplementation...
September 23, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28939430/do-non-nutritive-sweeteners-influence-acute-glucose-homeostasis-in-humans-a-systematic-review
#3
REVIEW
Robin M Tucker, Sze-Yen Tan
The human body associates sensory cues with metabolic consequences. Exposure to sweet-tasting sugars - even in the absence of ingestion - triggers physiological responses that are associated with carbohydrate digestion, absorption and metabolism. These responses include the release of insulin and incretin hormones, which work to reduce blood glucose. For this reason, non-nutritive sweeteners (NNS) have been posited to trigger similar physiological responses and reduce postprandial blood glucose concentrations...
September 19, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28938521/beneficial-health-applications-and-medicinal-values-of-pedicularis-plants-a-review
#4
REVIEW
Mohd Iqbal Yatoo, Umesh Dimri, Arumugam Gopalakrishnan, Kumaragurubaran Karthik, Marappan Gopi, Rekha Khandia, Mani Saminathan, Archana Saxena, Mahmoud Alagawany, Mayada Ragab Farag, Ashok Munjal, Kuldeep Dhama
Pedicularis plants (Orobanchaceae), popularly known as lousewort, are found in Asia, Europe, and North America, and have been used in Sowa-Rigpa, the Himalayan art of healing and a traditional system of medicine for treating various ailments in humans. A comprehensive compilation on this valuable medicinal plant is not available, however. The present extensive review provides insight into the salient medicinal properties of Pedicularis plants with respect to various health issues and diseases. Our previous studies on Pedicularis plants from the Changthang region of Ladakh (India) and research advances leading to new developments in this field have prompted this review...
September 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28935445/-usefulness-of-small-bowel-capsule-endoscopy-in-gastrointestinal-bleeding
#5
Chloé Leandri, Benoit Bordacahar, Sophie Ribiere, Ammar Oudjit, Marie-Anne Guillaumot, Bertrand Brieau, Frédéric Prat, Vered Abitbol, Stanislas Chaussade, Romain Coriat
In France, upper gastrointestinal haemorrhages have an estimated annual incidence of 143 cases per 100,000 inhabitants. Classically, two types of digestive hemorrhage are described: acute and chronic digestive hemorrhages. Upper endoscopy is carried out in case of hematemesis or melena. It requires that the patient has been fasting for at least 6hours for solids and 3hours for liquids. The main etiologies of hemorrhagic hemorrhage of the origin are the vascular abnormalities, inflammatory or drug-induced ulcerations, intestinal tumors, Meckel's diverticulum, and Dieulafoy ulcer...
September 18, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28931720/ph-control-in-the-midgut-of-aedesaegypti-under-different-nutritional-conditions
#6
Denise Barguil Nepomuceno, Vânia Cristina Santos, Ricardo Nascimento Araújo, Marcos Horácio Pereira, Maurício Roberto Sant'Anna, Luciano Andrade Moreira, Nelder Figueiredo Gontijo
Aedes aegypti is one of the most important disease vectors in the world. Because their gut is the first site of interaction with pathogens, it is important to understand A. aegypti gut physiology. In this study, we investigated the mechanisms of pH control in the midgut of A. aegypti females under different nutritional conditions. We found that unfed females have an acidic midgut (pH ∼6). The midgut of unfed insects is actively maintained at pH 6 regardless of the ingestion of either alkaline or acidic buffered solutions...
September 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28929088/microbial-invasion-vs-tick-immune-regulation
#7
REVIEW
Daniel E Sonenshine, Kevin R Macaluso
Ticks transmit a greater variety of pathogenic agents that cause disease in humans and animals than any other haematophagous arthropod, including Lyme disease, Rocky Mountain spotted fever, human granulocytic anaplasmosis, babesiosis, tick-borne encephalitis, Crimean Congo haemorhagic fever, and many others (Gulia-Nuss et al., 2016). Although diverse explanations have been proposed to explain their remarkable vectorial capacity, among the most important are their blood feeding habit, their long term off-host survival, the diverse array of bioactive molecules that disrupt the host's natural hemostatic mechanisms, facilitate blood flow, pain inhibitors, and minimize inflammation to prevent immune rejection (Hajdušek et al...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28923895/ready-experimental-translocation-of-mycobacterium-canettii-yields-pulmonary-tuberculosis
#8
Fériel Bouzid, Fabienne Brégeon, Hubert Lepidi, Helen D Donoghue, David E Minnikin, Michel Drancourt
Mycobacterium canettii, with smooth colony morphology, is the tuberculous organism retaining most genetic traits from the putative last common ancestor of the rough morphology Mycobacterium tuberculosis complex. To explore whether M. canettii can infect individuals by the oral route, mice were fed with phosphate buffered saline or 10(6)M. canettii and were sacrificed over a 28-day experiment. While no M. canettii was detected in negative controls, M. canettii-infected mice yielded granuloma-like lesions in 4/4 lungs at days 14 and 28 post-inoculation (p...
September 18, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28923303/an-extremely-high-bioavailability-of-orally-administered-vancomycin-in-a-patient-with-severe-colitis-and-renal-insufficiency
#9
Shingo Yamazaki, Takaaki Suzuki, Tatsuya Suzuki, Hirokazu Takatsuka, Masayuki Ishikawa, Noriyuki Hattori, Takeshi Fujishiro, Hideaki Miyauchi, Takehiko Oami, Noritaka Ariyoshi, Shigeto Oda, Hisahiro Matsubara, Itsuko Ishii
Because there is little absorption of orally administered vancomycin hydrochloride (VCM) through the normal intestinal microvillus membrane, the pharmacokinetics of VCM absorbed from the digestive tract are mostly unknown. Here we report a case of severe colitis and renal insufficiency in which the serum concentration of VCM reached the supratherapeutic range after oral administration. A 54-year-old man receiving outpatient chemotherapy for rectal cancer was admitted to our hospital for severe sepsis and acute renal failure...
September 8, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28923171/potential-early-biomarkers-of-sarcopenia-among-independent-older-adults
#10
Ana Coto Montes, José Antonio Boga, Carlos Bermejo Millo, Adrián Rubio González, Yaiza Potes Ochoa, Ignacio Vega Naredo, Marta Martínez Reig, Luis Romero Rizos, Pedro Manuel Sánchez Jurado, Juan Jose Solano, Pedro Abizanda, Beatriz Caballero
OBJECTIVES: There are no tools or biomarkers for a quantitative analysis of sarcopenia. STUDY DESIGN: Cross-sectional study of the diagnosis of sarcopenia in 200 independent adults aged 70 years or over. MAIN OUTCOME MEASURES: Sarcopenia was defined as loss of muscle mass together with low strength and/or loss of physical performance. We considered different clinical parameters and assayed potential blood biomarkers (cell energetic metabolism, muscle performance, inflammation, infection and oxidative stress)...
October 2017: Maturitas
https://www.readbyqxmd.com/read/28923057/postprandial-lipemia-factoring-in-lipemic-response-for-ranking-foods-for-their-healthiness
#11
REVIEW
Cintia Botelho Dias, Paul J Moughan, Lisa G Wood, Harjinder Singh, Manohar L Garg
One of the limitations for ranking foods and meals for healthiness on the basis of the glycaemic index (GI) is that the GI is subject to manipulation by addition of fat. Postprandial lipemia, defined as a rise in circulating triglyceride containing lipoproteins following consumption of a meal, has been recognised as a risk factor for the development of cardiovascular disease and other chronic diseases. Many non-modifiable factors (pathological conditions, genetic background, age, sex and menopausal status) and life-style factors (physical activity, smoking, alcohol and medication use, dietary choices) may modulate postprandial lipemia...
September 18, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28919761/effects-of-bromadiolone-poisoning-on-the-central-nervous-system
#12
Meiling Wang, Yanfeng Yang, Yiwei Hou, Wenbin Ma, Rui Jia, Jinbo Chen
Cases of rodenticide poisoning (second-generation long-acting dicoumarin rodenticide, superwarfarin) have occasionally been reported. The main symptoms of bromadiolone poisoning are skin mucosa hemorrhage, digestive tract hemorrhage, and hematuresis. However, the symptoms of central nervous system toxicity have rarely been reported. Our case reports on a 41-year-old male who had no contact with bromadiolone. His main symptoms were dizziness, unsteady gait, and abnormal behavior. Laboratory test results revealed the presence of bromadiolone in his blood and urine, a longer prothrombin time, activated partial thromboplastin time, and a high international normalized ratio...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28919366/prevalence-and-risk-factors-for-fragility-fracture-in-systemic-mastocytosis
#13
Yannick Degboé, Marine Eischen, Delphine Nigon, Pol-André Apoil, Claire Mailhol, Emilie Tournier, Camille Laurent, Katia Hanssens, Olivier Hermine, Carle Paul, Michel Laroche, Cristina Bulai-Livideanu
OBJECTIVES: Systemic mastocytosis (SM) is characterized by the accumulation of mast cells in tissues other than the skin. Bone involvement although frequent has not been thoroughly evaluated. Primary objective was to determine risk factors associated with fragility fractures (FF) in SM. Secondary objectives were to evaluate the ability of bone marrow tryptase (BMT) level to identify patients with FF, and to describe bone involvement in SM. METHODS: We analyzed retrospectively all consecutive patients seen in our expert center, with a diagnosis of SM according to the 2001 WHO criteria, and with complete bone assessment...
September 14, 2017: Bone
https://www.readbyqxmd.com/read/28918235/identification-of-bluetongue-virus-serotypes-1-4-and-17-co-infections-in-sheep-flocks-during-outbreaks-in-brazil
#14
Lorena Lima Barbosa Guimarães, Júlio César Câmara Rosa, Ana Carolina Diniz Matos, Raquel Aparecida S Cruz, Maria Isabel Maldonado Coelho Guedes, Fernanda Alves Dorella, Henrique César Pereira Figueiredo, Saulo Petinatti Pavarini, Luciana Sonne, Zélia Inês Portela Lobato, David Driemeier
Bluetongue (BT) is a vector-borne viral disease caused by the Bluetongue virus (BTV), an Orbivirus from the Reoviridae family, affecting domestic and wild ruminants. BTV circulation in Brazil was first reported in 1978, and several serological surveys indicate that the virus is widespread, although with varied prevalence. In 2014, BT outbreaks affected sheep flocks in Rio Grande do Sul state, causing significant mortality (18.4%; 91/495) in BTV-infected sheep. In total, seven farms were monitored, and one or two sheep from each farm that died due to clinical signs of BT were necropsied...
September 5, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28914850/-correction-of-small-bowel-function-as-a-new-direction-for-treating-patients-with-metabolic-syndrome
#15
Ya M Vakhrushev, M V Lyapina
AIM: To provide a rationale for and to evaluate the therapeutic efficiency of the combined use of pancreatic enzymes and actovegin in the combination therapy of patients with metabolic syndrome (MS) on the basis of comprehensive clinical and functional studies of the small bowel (SB). SUBJECTS AND METHODS: In the course of treatment, 120 patients with MS (verified using the diagnostic criteria elaborated by the All-Russian Research Society of Cardiology (2009)) underwent a comprehensive study of SB function: an isolated study of resorptive processes; evaluation of parietal and cavitary digestion, motor-evacuation function...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28914450/changes-in-composition-and-content-of-food-derived-peptide-in-human-blood-after-daily-ingestion-of-collagen-hydrolysate-for-4-weeks
#16
Yasutaka Shigemura, Asahi Suzuki, Mihoko Kurokawa, Yosio Sato, Kenji Sato
BACKGROUND: daily ingestion of collagen hydrolysate improves skin and joint conditions. It has been speculated that the beneficial effects are exerted by food-derived hydroxyproline (Hyp) peptides, which are detected in human blood after single ingestions. In the present study, to investigate the detailed relationship of the beneficial effects of Hyp-peptides, we examined the concentrations of Hyp-peptides in human blood before and after daily ingestion. RESULTS: Hyp-peptides increased to a maximum level at 1 h after ingestion and reverted to their initial levels within 24 h during daily ingestion...
September 15, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28903111/type-1-taste-receptors-in-taste-and-metabolism
#17
Matthew Kochem
Our sense of taste allows us to evaluate the nutritive value of foods prior to ingesting them. Sweet taste signals the presence of sugars, and savory taste signals the presence of amino acids. The ability to identify these macronutrients in foods was likely crucial for the survival of our species when nourishing food sources were sparse. In modern, industrialized settings, taste perception continues to play an important role in human health as we attempt to prevent and treat conditions stemming from overnutrition...
2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28900838/comparative-nutritional-value-of-jatropha-curcas-protein-isolate-and-soy-protein-isolate-in-common-carp
#18
Sunil Nepal, Vikas Kumar, Harinder P S Makkar, Timo Stadtlander, Nicholas Romano, Klaus Becker
Jatropha seed cake (JSC) is an excellent source of protein but does contain some antinutritional factors (ANF) that can act as toxins and thus negatively affect the growth and health status of fish. While this can limit the use of JSC, detoxified Jatropha protein isolate (DJPI) may be a better option. An 8-week study was performed to evaluate dietary DJPI to common carp Cyprinus carpio. Five iso-nitrogenous diets (crude protein of 38%) were formulated that consisted of a C ontrol (fish meal (FM) based protein), J 50 or J 75 (50 and 75% of FM protein replaced by DJPI), and S 50 or S 75 (50 and 75% of FM protein replaced by soy protein isolate, SPI) and fed to triplicate groups of 75 carp fingerlings (75; av...
September 12, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28895589/instant-on-paper-protein-digestion-during-blood-spot-sampling
#19
Øystein Skjærvø, Cecilie Rosting, Trine Grønhaug Halvorsen, Léon Reubsaet
A concept integrating sampling and protein digestion is introduced here combining fast and simple fabrication by wax printing on filter paper with trypsin immobilized polymer beads. The paper reactors showed promising results with a high degree of protein digestion within fifty minutes in model protein mixtures as well as in human blood. The model protein mixture was used for the evaluation of performance both with and without a reduction and alkylation step. The paper reactors without reduction and alkylation showed between 46% and 75% protein sequence coverage and between five and 20 high confidence peptides (one and five zero missed cleavage peptides, respectively)...
September 12, 2017: Analyst
https://www.readbyqxmd.com/read/28892361/immunopurification-of-acetylcholinesterase-from-red-blood-cells-for-detection-of-nerve-agent-exposure
#20
Alicia J Dafferner, Lawrence M Schopfer, Gaoping Xiao, John R Cashman, Udaya Yerramalla, Rudolph C Johnson, Thomas A Blake, Oksana Lockridge
Nerve agents and organophosphorus pesticides make a covalent bond with the active site serine of acetylcholinesterase (AChE), resulting in inhibition of AChE activity and toxic symptoms. AChE in red blood cells (RBCs) serves as a surrogate for AChE in the nervous system. Mass spectrometry analysis of adducts on RBC AChE could provide evidence of exposure. Our goal was to develop a method of immunopurifying human RBC AChE in quantities adequate for detecting exposure by mass spectrometry. For this purpose, we immobilized 3 commercially available anti-human acetylcholinesterase monoclonal antibodies (AE-1, AE-2, and HR2) plus 3 new monoclonal antibodies...
September 25, 2017: Chemical Research in Toxicology
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