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https://www.readbyqxmd.com/read/29149831/molecular-mechanisms-triggered-by-bile-acids-on-iintestinal-ca2-absorption
#1
Ana Marchionatti, Maria Rivoira, Valeria Rodriguez, Adriana Perez, Nori Tolosa de Talamoni
Bile acids (BAs) are synthesized in the liver and are among the main components of bile. For many years, it was thought that they have only a role as emulsifiers of fat in the small intestine facilitating the absorption of lipids and lipid soluble vitamins. Lately, they are also considered important signaling molecules, not only by regulating their own synthesis, but also having a role in several metabolic diseases. In this review we focus on the effect of deoxycholic, ursodeoxycholic and litocholic acids and their combination upon the intestinal Ca2+ absorption...
November 16, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29140938/immunity-following-childhood-vaccinations-in-perinatally-hiv-exposed-children-with-and-without-hiv-infection-in-latin-america
#2
Regina Cm Succi, Margot R Krauss, D Robert Harris, Daisy M Machado, Maria I de Moraes-Pinto, Marisa M Mussi-Pinhata, Noris Pavia Ruz, Russell B Pierre, Lenka A Kolevic Roca, Esaú Joao, Irene Foradori, Marcelo C Scotta, Rohan Hazra, George K Siberry
BACKGROUND: Perinatally HIV-infected (PHIV) children are at risk for undervaccination and poor vaccine response at four years of age. Childhood vaccine coverage and immune response were compared between PHIV and HIV-exposed uninfected (HEU) children in Latin America and the Caribbean. METHODS: PHIV and HEU children were enrolled prospectively at fifteen sites from 2002-2009. Full vaccination by age four years was defined as: three hepatitis B virus (HBV) vaccine doses; four tetanus toxoid-containing vaccine doses; three doses of Haemophilus influenzae type b (Hib) vaccine by age 12 months or ≥1 dose given after age 12 months; one measles-containing vaccine dose; one rubella-containing vaccine dose...
November 14, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29138514/changing-trends-in-the-prevalence-of-h-pylori-infection-in-japan-1908-2003-a-systematic-review-and-meta-regression-analysis-of-170-752-individuals
#3
Chaochen Wang, Takeshi Nishiyama, Shogo Kikuchi, Manami Inoue, Norie Sawada, Shoichiro Tsugane, Yingsong Lin
Changing trends in the prevalence of H. pylori infection in the general population over time are thought to be the main driving force behind the declining gastric cancer mortality in Japan. However, whether the prevalence of H. pylori infection itself shows a birth-cohort pattern needs to be corroborated. We performed a systematic review of studies that reported the prevalence of H. pylori infection among Japanese individuals. Meta-regression was conducted in the framework of a generalized additive mixed model (GAMM) to account for heterogeneity in the prevalence of H...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29138359/comparative-effects-of-intraduodenal-amino-acid-infusions-on-food-intake-and-gut-hormone-release-in-healthy-males
#4
Robert E Steinert, Sina S Ullrich, Nori Geary, Lori Asarian, Marco Bueter, Michael Horowitz, Christine Feinle-Bisset
In contrast to the many studies of the effects of individual amino acids (AAs) on eating, no studies have compared the effects of different AAs on eating and underlying preabsorptive gastrointestinal mechanisms. To compare the effects of intraduodenal infusions of l-tryptophan (TRP), l-leucine (LEU), l-phenylalanine (PHE) and l-glutamine (GLN) on appetite, gastrointestinal hormone responses (including ghrelin, cholecystokinin (CCK), peptide YY (PYY) and glucagon-like peptide-1 [GLP-1]), glycemia (glucagon, insulin and glucose) and test meal size in healthy males, we retrospectively analyzed data from four published independent, randomized, double-blind, placebo-controlled studies of 90-min intraduodenal infusions of the individual AAs...
November 2017: Physiological Reports
https://www.readbyqxmd.com/read/29136681/assessment-of-multiple-cytochrome-p450-activities-in-metabolically-inactivated-human-liver-microsomes-and-roles-of-p450-2c-isoforms-in-reaction-phenotyping-studies
#5
Norie Murayama, Kanako Yajima, Mikiko Hikawa, Kanami Shimura, Yu Ishii, Masaki Takada, Yasuhiro Uno, Masahiro Utoh, Kazuhide Iwasaki, Hiroshi Yamazaki
The fraction of substrate metabolized (fm ) can be used to estimate drug interactions and can be determined by comparison of the intrinsic clearances (CLint ) of victim drugs obtained from inhibited and uninhibited hepatic enzymes. Commercially available human liver microsomes were recently developed in which one cytochrome P450 (P450) isoform is selectively inactivated. These inactivated liver microsomes were used to evaluate the roles of P450 2C isoforms in the depletion and oxidation of probe substrates...
November 14, 2017: Biopharmaceutics & Drug Disposition
https://www.readbyqxmd.com/read/29134651/heavy-metal-contamination-microbiological-spoilage-and-biogenic-amines-content-in-sushi-available-on-the-polish-market
#6
Piotr Kulawik, Dani Dordevic, Florian Gambuś, Katarzyna Szczurowska, Marzena Zając
BACKGROUND: The study determined the heavy metal contamination (mercury, cadmium, lead, arsenic and nickel) of nori, restaurant-served sushi and ready-to-eat sushi meals available through retail chains. Moreover the microbiological loads and biogenic amines content in ready-to-eat sushi meals were analysed. RESULTS: All the nori samples contained high levels of Cd (2.122 mg kg(-1) ), Ni (0.715 mg kg(-1) ), As (34.56 mg kg(-1) ) and Pb (0.659 mg kg(-1) ). The studied sushi samples contained high levels of Ni and Pb, reaching 0...
November 13, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29129895/impact-of-alcohol-intake-and-drinking-patterns-on-mortality-from-all-causes-and-major-causes-of-death-in-a-japanese-population
#7
Eiko Saito, Manami Inoue, Norie Sawada, Hadrien Charvat, Taichi Shimazu, Taiki Yamaji, Motoki Iwasaki, Shizuka Sasazuki, Tetsuya Mizoue, Hiroyasu Iso, Shoichiro Tsugane
BACKGROUND: We examined the associations of alcohol consumption and liver holidays with all-cause mortality and with mortality due to cancer, heart disease, cerebrovascular disease, respiratory disease, and injury using a large-scale prospective study in Japan. METHODS: We followed 102,849 Japanese who were aged between 40 and 69 years at baseline for 18.2 years on average, during which 15,203 deaths were reported. Associations between alcohol intake and mortality risk were assessed using a Cox proportional hazards model, with analysis by the number of liver holidays (in which a person abstains from drinking for several days a week)...
November 11, 2017: Journal of Epidemiology
https://www.readbyqxmd.com/read/29121107/durability-of-immunity-by-hepatitis-b-vaccine-in-japanese-health-care-workers-depends-on-primary-response-titers-and-durations
#8
Nori Yoshioka, Matsuo Deguchi, Hideharu Hagiya, Masanori Kagita, Hiroko Tsukamoto, Miyuki Takao, Hisao Yoshida, Norihisa Yamamoto, Yukihiro Akeda, Yoshiko Nabetani, Ikuhiro Maeda, Yoh Hidaka, Kazunori Tomono
BACKGROUND: Health care workers (HCWs) are frequently exposed to hepatitis B virus (HBV) infection. The efficacy and safety of immunization with the hepatitis B (HB) vaccine are well recognized, but the durability of immunity and need for booster doses in those with secondary vaccine response failure remains controversial. METHODS: This was a retrospective cohort study performed at Osaka University Hospital, Japan. We examined antibodies against HB surface antigen (anti-HBs) titers annually after immunization for previously non-immunized HCWs...
2017: PloS One
https://www.readbyqxmd.com/read/29116401/elucidation-of-rubber-biosynthesis-and-accumulation-in-the-rubber-producing-shrub-guayule-parthenium-argentatum-gray
#9
Hiroyuki Kajiura, Nobuaki Suzuki, Hiroshi Mouri, Norie Watanabe, Yoshihisa Nakazawa
Guayule biosynthesizes and accumulates rubber particles predominantly in epithelial cells in the parenchyma tissue, and this biosynthesis and accumulation is accompanied by remodeling of the roles of epithelial cells. The mechanism underlying the biosynthesis and accumulation of large quantities of rubber particles and resin in the parenchyma tissue of the stem bark of guayule (Parthenium argentatum Gray) remained unanswered up to now. Here, we focused on rubber particle biosynthesis and accumulation in guayule and performed histochemical analyses using a lipophilic fluorescent dye specific for lipids and spectral confocal laser scanning microscopy...
November 7, 2017: Planta
https://www.readbyqxmd.com/read/29098392/evaluation-of-pharmacokinetic-models-of-intravenous-dexmedetomidine-in-sedated-patients-under-spinal-anesthesia
#10
Shinju Obara, Tsuyoshi Imaizumi, Takahiro Hakozaki, Atsuyuki Hosono, Yuzo Iseki, Norie Sanbe, Masahiro Murakawa
PURPOSE: Little information is available on the predictive ability of previously published pharmacokinetic models of dexmedetomidine in patients under spinal anesthesia. We evaluated nine published pharmacokinetic models that were constructed in different study settings. METHODS: Sixteen patients received dexmedetomidine infusions after spinal anesthesia according to the manufacturer's recommended regimen (6 µg/kg/h over 10 min followed by 0.2-0.7 µg/kg/h) or target-controlled infusion (initial target of 1...
November 2, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/29093277/the-coronary-artery-running-pattern-is-one-of-the-causes-of-individual-differences-in-the-progression-of-coronary-atherosclerosis-in-whhlmi-rabbits-an-animal-model-for-coronary-atherosclerosis
#11
Ryosuke Nagasaka, Tomonari Koike, Norie Tsukada, Shohei Tamura, Masashi Shiomi
AIMS: The relationship between the coronary artery running pattern and development of coronary lesions was re-examined herein using WHHLMI rabbits, an animal model of spontaneous coronary atherosclerosis. METHODS: The coronary artery running pattern was analyzed using an X-ray computed tomography (CT) apparatus after perfusion. Pathological sections were prepared (Victoria blue-HE staining) at 100 µm intervals from the origin of the left circumflex artery (LCX)...
November 1, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/29091170/-seroprevalence-of-trypanosoma-cruzi-infection-in-the-rural-population-of-sucre-state-venezuela
#12
Noris García-Jordán, Mariolga Berrizbeitia, Jessicca Rodríguez, Juan Luis Concepción, Ana Cáceres, Wilfredo Quiñones
The current study aimed to determine the seroprevalence of Trypanosoma cruzi infection in Sucre State, Venezuela, and its association with epidemiological risk factors. The cluster sampling design allowed selecting 96 villages and 576 dwellings in the State's 15 municipalities. A total of 2,212 serum samples were analyzed by ELISA, HAI, and IFI. Seroprevalence in Sucre State was 3.12%. Risk factors associated with T. cruzi infection were: accumulated garbage, flooring and wall materials, type of dwelling, living in a house with wattle and daub walls and/or straw roofing, living in a house with risky walls and roofing, risky buildings and wattle and daub outbuildings, poultry inside the human dwelling, and presence of firewood...
October 26, 2017: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/29077473/hole-spin-resonance-and-spin-orbit-coupling-in-a-silicon-metal-oxide-semiconductor-field-effect-transistor
#13
K Ono, G Giavaras, T Tanamoto, T Ohguro, X Hu, F Nori
We study hole spin resonance in a p-channel silicon metal-oxide-semiconductor field-effect transistor. In the subthreshold region, the measured source-drain current reveals a double dot in the channel. The observed spin resonance spectra agree with a model of strongly coupled two-spin states in the presence of a spin-orbit-induced anticrossing. Detailed spectroscopy at the anticrossing shows a suppressed spin resonance signal due to spin-orbit-induced quantum state mixing. This suppression is also observed for multiphoton spin resonances...
October 13, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/29076523/coffee-and-green-tea-consumption-and-subsequent-risk-of-acute-myeloid-leukemia-and-myelodysplastic-syndromes-in-japan
#14
Tomotaka Ugai, Keitaro Matsuo, Norie Sawada, Motoki Iwasaki, Taiki Yamaji, Taichi Shimazu, Atsushi Goto, Manami Inoue, Yoshinobu Kanda, Shoichiro Tsugane
Although coffee and green tea are suggested to reduce the risk of some types of cancers, only a few epidemiological studies have investigated their effect on the risk of acute myeloid leukemia (AML) and myelodysplastic syndromes (MDS). Here, we investigated the association of coffee and green tea consumption and the risk of AML and MDS in a large-scale population-based cohort study in Japan. A total of 95,807 Japanese subjects (45,937 men and 49,870 women; age 40-69 years at baseline) were followed to the end of 2012, for an average of 18 years...
October 27, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29068992/plasma-interleukin-27-levels-in-patients-with-coronary-artery-disease
#15
Kotaro Miura, Emi Saita, Norie Suzuki-Sugihara, Koutaro Miyata, Nobuhiro Ikemura, Reiko Ohmori, Yukinori Ikegami, Yoshimi Kishimoto, Kazuo Kondo, Yukihiko Momiyama
Interleukin (IL)-27, one of cytokines in the IL-12 family, is considered to have both pro- and anti-inflammatory properties. However, blood IL-27 levels in coronary artery disease (CAD) have not been fully elucidated yet. This cross-sectional study was done to elucidate the association between blood IL-27 levels and CAD.We investigated plasma IL-27 and high-sensitivity C-reactive protein (hsCRP) levels in 274 consecutive patients who underwent elective coronary angiography for suspected CAD. CAD was present in 177 patients [30 acute coronary syndrome (ACS) and 147 stable CAD]...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29068372/deep-sequencing-data-and-infectivity-assays-indicate-that-chickpea-chlorotic-dwarf-virus-is-the-etiological-agent-of-the-hard-fruit-syndrome-of-watermelon
#16
Takoua Zaagueri, Laura Miozzi, Monia Mnari-Hattab, Emanuela Noris, Gian Paolo Accotto, Anna Maria Vaira
Chickpea chlorotic dwarf virus (CpCDV), a polyphagous mastrevirus, family Geminiviridae, has been recently linked to the onset of the "hard fruit syndrome" of watermelon, first described in Tunisia, that makes fruits unmarketable due to the presence of white hard portions in the flesh, chlorotic mottling on the rind, and an unpleasant taste. To investigate the etiological agent of this disease, total RNA extracted from symptomatic watermelon fruits was subjected to small RNA sequencing through next generation sequencing (NGS) techniques...
October 25, 2017: Viruses
https://www.readbyqxmd.com/read/29062893/electrotunable-artificial-molecules-based-on-van-der-waals-heterostructures
#17
Zhuo-Zhi Zhang, Xiang-Xiang Song, Gang Luo, Guang-Wei Deng, Vahid Mosallanejad, Takashi Taniguchi, Kenji Watanabe, Hai-Ou Li, Gang Cao, Guang-Can Guo, Franco Nori, Guo-Ping Guo
Quantum confinement has made it possible to detect and manipulate single-electron charge and spin states. The recent focus on two-dimensional (2D) materials has attracted significant interests on possible applications to quantum devices, including detecting and manipulating either single-electron charging behavior or spin and valley degrees of freedom. However, the most popular model systems, consisting of tunable double-quantum-dot molecules, are still extremely difficult to realize in these materials. We show that an artificial molecule can be reversibly formed in atomically thin MoS2 sandwiched in hexagonal boron nitride, with each artificial atom controlled separately by electrostatic gating...
October 2017: Science Advances
https://www.readbyqxmd.com/read/29061792/role-of-neurokinin-3-receptor-signaling-in-oral-squamous-cell-carcinoma
#18
Kyoichi Obata, Tsuyoshi Shimo, Tatsuo Okui, Kenichi Matsumoto, Hiroyuki Takada, Kiyofumi Takabatake, Yuki Kunisada, Soichiro Ibaragi, Norie Yoshioka, Koji Kishimoto, Hitoshi Nagatsuka, Akira Sasaki
BACKGROUND/AIM: The neurokinin 3 receptor (NK-3R) is differentially expressed in the central nervous system including cases of human oral squamous cell carcinoma. However, the role of NK-3R signaling in oral squamous cell carcinoma is not well known. MATERIALS AND METHODS: NK-3R expression in surgically resected oral squamous cell carcinoma was examined immunohistochemically and the strength of the expression was quantified. We evaluated the function of NK-3R signaling using NK-3R antagonist in human oral squamous cell carcinoma bone invasion mouse model...
November 2017: Anticancer Research
https://www.readbyqxmd.com/read/29054426/origin-of-the-myotonic-dystrophy-type-1-mutation-in-mexican-population-and-influence-of-amerindian-ancestry-on-ctg-repeat-allelic-distribution
#19
N M Murillo-Melo, L C Márquez-Quiróz, R Gómez, L Orozco, E Mendoza-Caamal, Y S Tapia-Guerrero, R Camacho-Mejorado, H Cortés, A López-Reyes, C Santana, G Noris, O Hernández-Hernández, B Cisneros, J J Magaña
Myotonic dystrophy type 1 is caused by expansion of a CTG trinucleotide repeat situated in the DMPK gene. Worldwide genetic studies suggest a single or limited number of mutational events cause the disease. However, distribution of CTG alleles and disease incidence varies among ethnicities. Due to the great ethnic diversity of the Mexican population, the present study was aimed at analyzing the impact of different lineages in shaping the CTG-repeat allelic distribution in the contemporary Mexican-Mestizo population as well as to shed light on the DM1 ancestral origin...
September 21, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/29053480/impact-of-moderate-intensity-and-vigorous-intensity-physical-activity-on-mortality
#20
Hiroyuki Kikuchi, Shigeru Inoue, I-Min Lee, Yuko Odagiri, Norie Sawada, Manami Inoue, Shoichiro Tsugane
PURPOSE: Physical activity guidelines recommend at least 150 min of moderate-intensity physical activity (MPA), 75 min of vigorous-intensity physical activity (VPA), or combination of MPA and VPA. However, few epidemiological studies have examined whether the general population can derive equal health benefits from MPA or VPA. This study examined the associations of different activity intensities with mortality. METHODS: In this prospective cohort study, a total of 83,454 community-dwelling Japanese who answered a questionnaire in 2000-2003 were followed for all-cause mortality through 2012...
October 19, 2017: Medicine and Science in Sports and Exercise
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