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https://www.readbyqxmd.com/read/29141205/investigation-of-alimentary-canal-ultrastructure-following-knockdown-of-the-dicer-2-gene-in-planthoppers-reveals-the-potential-pathogenicity-of-southern-rice-black-streaked-dwarf-virus-to-its-insect-vector
#1
Yuyan Liu, Qianzhuo Mao, Hanhong Lan, Haitao Wang, Taiyun Wei, Qian Chen
An increasing number of studies are suggesting that plant viruses, including southern rice black-streaked dwarf virus (SRBSDV), can adversely affect biological characteristics of insect vectors by unknown mechanisms. To study the adverse effect of SRBSDV at cellular level on the insect vector, we promoted viral infection by the disruption of the small interfering RNA (siRNA) pathway. The transmission electron microscopy was utilized to describe the ultrastructural changes that occurred in insects when the core component of the siRNA pathway, Dicer-2, was knocked down...
November 12, 2017: Virus Research
https://www.readbyqxmd.com/read/29112649/racial-and-ethnic-differences-in-utilization-of-labor-management-strategies-intended-to-reduce-cesarean-delivery-rates
#2
Lynn M Yee, Maged M Costantine, Madeline Murguia Rice, Jennifer Bailit, Uma M Reddy, Ronald J Wapner, Michael W Varner, John M Thorp, Steve N Caritis, Mona Prasad, Alan T N Tita, Yoram Sorokin, Dwight J Rouse, Sean C Blackwell, Jorge E Tolosa
OBJECTIVE: To examine whether racial and ethnic differences exist in the frequency of and indications for cesarean delivery and to assess whether application of labor management strategies intended to reduce cesarean delivery rates is associated with patient's race and ethnicity. METHODS: This is a secondary analysis of a multicenter observational obstetric cohort. Trained research personnel abstracted maternal and neonatal records of greater than 115,000 pregnant women from 25 hospitals (2008-2011)...
November 3, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29093331/germinated-waxy-black-rice-ameliorates-hyperglycemia-and-dyslipidemia-in-streptozotocin-induced-diabetic-rats
#3
Hye Won Kang, Won-Chul Lim, Jin-Kyu Lee, Jin-Nyoung Ho, Eun-Jeong Lim, Hong-Yon Cho
This study aimed to examine the anti-diabetic effect of germinated waxy black rice (GWBR) using streptozotocin (STZ)-induced diabetic rats. In the diabetic rats, GWBR supplementation for 8 weeks reduced plasma blood glucose concentrations, improved glucose clearance and prevented diabetes-induced weight loss. Rats with STZ-induced diabetes who received GWBR supplementation exhibited decreased expression of sodium-dependent glucose transporter 1 (SGLT1) and glucose transporter (GLUT) 2 genes and proteins in the small intestine via decreases in hepatocyte nuclear factor (HNF)-1α, HNF-1β, and HNF-4α, transcriptional factors that are involved in the regulation of SGLT1 and GLUT2, compared with the rats with STZ-induced diabetes that did not receive GWBR supplements...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29050971/a-simple-method-for-obtaining-rice-black-streaked-dwarf-virus-infected-small-brown-planthopper-nymphs
#4
Changwei Zhou, Shuo Li, Yijun Zhou, Yongjian Fan
Rice black-streaked dwarf virus (RBSDV), an important rice virus, is transmitted by vector small brown planthopper (SBPH) in a persistent manner, but not transovarial transmission. In order to obtain viruliferous SBPH nymphs for relevant research, a simple and reliable method was developed, through allowing SBPH adults laying eggs on RBSDV-infected rice plants. The results showed the hatching nymphs on diseased plants could early acquire virus, and the virus was detected in 2nd-instar nymphs from the spawning method, which was earlier than insect feed on diseased plant...
January 2018: Journal of Virological Methods
https://www.readbyqxmd.com/read/29046501/characterization-of-amylolytic-enzyme-overproducing-mutant-of-aspergillus-luchuensis-obtained-by-ion-beam-mutagenesis
#5
Toshihiro Kojo, Chihiro Kadooka, Marisa Komohara, Shiori Onitsuka, Miya Tanimura, Yukiko Muroi, Shugo Kurazono, Yohei Shiraishi, Ken Oda, Kazuhiro Iwashita, Masahira Onoue, Kayu Okutsu, Yumiko Yoshizaki, Kazunori Takamine, Taiki Futagami, Kazuki Mori, Hisanori Tamaki
Aspergillus luchuensis is a kuro (black) koji fungus that has been used as a starch degrader for the awamori- and shochu-making industries in Japan. In this study, we investigated the effect of ion beam irradiation on A. luchuensis RIB2601 and obtained a high starch-degrading mutant strain U1. Strain U1 showed reduced growth rate, whereas it showed higher α-amylase, glucoamylase, and α-glucosidase activities on a mycelial mass basis than the wild type (wt) strain both on agar plates and in rice koji. In addition, strain U1 showed higher N-acetylglucosamine content in the cell wall and higher sensitivity to calcofluor white, suggesting a deficiency in cell wall composition...
October 17, 2017: Journal of General and Applied Microbiology
https://www.readbyqxmd.com/read/29039492/black-rice-derived-anthocyanins-inhibit-her-2-positive-breast-cancer-epithelial-mesenchymal-transition-mediated-metastasis-in%C3%A2-vitro-by-suppressing-fak-signaling
#6
Jie Zhou, Yan-Feng Zhu, Xiang-Yan Chen, Bin Han, Fei Li, Jing-Yao Chen, Xiao-Li Peng, Li-Ping Luo, Wei Chen, Xiao-Ping Yu
This study aimed to investigate the role of focal adhesion kinase (FAK) signaling in the inhibitory effects of black rice anthocyanins (BRACs) on human epidermal growth factor receptor-2 (HER-2)-positive human breast cancer cell metastasis, using the MCF-10A, MCF-7 and MDA-MB-453 cells. BRACs exerted an anti-metastatic effect on the HER-2-positive breast cancer cells. The effects of BRACs on the proliferation of the MDA-MB-453 cells were examined by cell counting kit-8 assay. A wound-healing assay was used to examine the effects of BRACs on the migration of the breast cancer cells...
October 11, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29037710/cooking-quality-properties-and-free-and-bound-phenolics-content-of-brown-black-and-red-rice-grains-stored-at-different-temperatures-for-six-months
#7
Valmor Ziegler, Cristiano Dietrich Ferreira, Jessica Fernanda Hoffmann, Fábio Clasen Chaves, Nathan Levien Vanier, Maurício de Oliveira, Moacir Cardoso Elias
The changes in cooking quality and phenolic composition of whole black and red rice grains stored during six months at different temperatures were evaluated. Brown rice with known cooking quality properties and low phenolic levels was used for purposes comparison. All rice genotypes were stored at 13% moisture content at temperatures of 16, 24, 32, and 40°C. Cooking time, hardness, free and bound phenolics, anthocyanins, proanthocyanidins, and free radical scavenging capacity were analysed. The traditional rice with brown pericarp exhibited an increase in cooking time and free phenolics content, while rice with black pericarp exhibited a reduction in cooking time after six months of storage at the highest studied temperature of 40°C...
March 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29037704/comparison-of-the-effect-of-chemical-composition-of-anthocyanin-rich-plant-extracts-on-colon-cancer-cell-proliferation-and-their-potential-mechanism-of-action-using-in-vitro-in-silico-and-biochemical-assays
#8
Candice Mazewski, Katie Liang, Elvira Gonzalez de Mejia
The objective was to compare the anti-proliferative effect of anthocyanin-rich plant extracts on human colon cancer cells and determine their mechanism of action. Eleven extracts were tested: red (RG) and purple grape, purple sweet potato, purple carrot, black and purple bean, black lentil (BL), black peanut, sorghum (SH), black rice, and blue wheat. HCT-116 and HT-29 inhibition correlated with total phenolics (r=0.87 and 0.77, respectively), delphinidin-3-O-glucoside concentration with HT-29 inhibition (r=0...
March 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29035012/regulatory-effects-of-black-rice-extract-on-helicobacter-pylori-infection-induced-apoptosis
#9
Sa-Hyun Kim, Min Ho Lee, Min Park, Hyun Jun Woo, Yoon Suk Kim, Nagendran Tharmalingam, Woo-Duck Seo, Jong-Bae Kim
SCOPE: Black rice extract (BRE) contains cyanidin 3-O-glucoside (C3G), an anthocyanin, as the major component. In this study, we found that BRE inhibited the mRNA and protein expression of genes encoding cytotoxin-associated protein A (cagA) and vacuolating protein A (vacA) in Helicobacter pylori 60190 strain. METHODS AND RESULTS: We performed RT-PCR and western blotting to show that BRE inhibited the mRNA and protein expression of SecA. Because SecA is involved in VacA export in bacteria, our result suggested a positive correlation between BRE-induced inhibition of secA expression and VacA secretion...
October 16, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29030875/protection-of-grain-products-from-sitophilus-oryzae-l-contamination-by-anti-insect-pest-repellent-sachet-containing-allyl-mercaptan-microcapsule
#10
Yoonjee Chang, Soo-Hyun Lee, Ja Hyun Na, Pahn-Shick Chang, Jaejoon Han
The purpose of this study was to develop an anti-insect pest repellent sachet to prevent Sitophilus oryzae (L.) (Coleoptera: Curculionidae) contamination in grain packaging. The anti-insect pest activities of essential oils (EOs) from garlic (Allium Sativum), ginger (Zingiber Officinalis), black pepper (Piper nigrum), onion (Allium cepa), and fennel (Foeniculum vulgare) as well as major compounds (allyl disulfide, AD; allyl mercaptan, AM) isolated from of garlic and onion (AD and AM) were measured against S...
October 14, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/29027705/effects-of-dietary-supplementation-of-spices-on-forage-degradability-ruminal-fermentation-in-vivo-digestibility-growth-performance-and-nitrogen-balance-in-black-bengal-goat
#11
M R Chowdhury, M M H Khan, S U Mahfuz, M A Baset
The objective of the study was to evaluate the effects of spices on forage utilization and nitrogen (N) emission using in vitro and in vivo approach. A 6 × 5 factorial triplicate arrangement was used to assess the in vitro degradability of rice straw with control (without spices) and individual (40 mg/g rice straw) spices (cumin, coriander, clove, black cumin, turmeric) at five different incubation times. In vitro dry matter (DM) and organic matter (OM) degradability of rice straw were highest in presence of spices except for clove...
October 13, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28976933/glycemic-response-to-black-beans-and-chickpeas-as-part-of-a-rice-meal-a-randomized-cross-over-trial
#12
Donna M Winham, Andrea M Hutchins, Sharon V Thompson
Legumes, such as black beans (Phaseolus vulgaris L.) and chickpeas (Cicer arietinum L.), have a low glycemic index, and may reduce the glycemic load of meals in which they are included. Although the low glycemic response of beans consumed alone has been documented, few studies have examined the glycemic response to traditional food combinations such as black beans and rice or chickpeas and rice. This randomized cross-over study examined the glycemic and insulinemic impact of 50 grams of available carbohydrate from three test meals: plain white rice (control), black beans with rice, and chickpeas with rice among healthy adult women (n = 12, 18-65 years)...
October 4, 2017: Nutrients
https://www.readbyqxmd.com/read/28966024/strong-binding-of-apolar-hydrophobic-organic-contaminants-by-dissolved-black-carbon-released-from-biochar-a-mechanism-of-pseudomicelle-partition-and-environmental-implications
#13
Heyun Fu, Chenhui Wei, Xiaolei Qu, Hui Li, Dongqiang Zhu
Dissolved black carbon (DBC), the soluble fraction of black carbon (BC), is an important constituent of dissolved organic matter pool. However, little is known about the binding interactions between hydrophobic organic contaminants (HOCs) and DBC and their significance in the fate process. This study determined the binding ability of DBC released from rice-derived BC for a series of apolar HOCs, including four polycyclic aromatic hydrocarbons and four chlorinated benzenes, using batch sorption and solubility enhancement techniques...
September 28, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28947222/effects-of-palm-oil-on-structural-and-in-vitro-digestion-properties-of-cooked-rice-starches
#14
Adil Muhammad Farooq, Sushil Dhital, Chao Li, Bin Zhang, Qiang Huang
The glycemic potency of rice depends upon the rate and extent of starch hydrolysis by pancreatic amylase and intestinal alpha-glucosidases. However, complexation of starch molecules with lipids is known to reduce the enzymic hydrolysis. In this study, we elucidated the varietal effect of rice starches on the formation of amylose-lipid complex, after cooking with palm oil, a common cooking oil. The amount of complexed lipid followed the order of black (2.5%), brown (2.5%), white (1.5%) and waxy (0.5%) rice starches...
September 22, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28946264/bound-phenolic-compounds-and-antioxidant-properties-of-whole-grain-and-bran-of-white-red-and-black-rice
#15
Yuehan Pang, Sulaiman Ahmed, Yanjie Xu, Trust Beta, Zhiwei Zhu, Yafang Shao, Jinsong Bao
Total phenolic content (TPC), individual phenolic acid and antioxidant capacity of whole grain and bran fraction 18 rices with different bran color were investigated. The levels of TPC in bound fractions were significantly higher than those in the free fractions either in the whole grains or brans. The main bound phenolic acids in white rice samples were ferulic acid, p-coumaric acid, and isoferulic acid, and in pigmented rice samples were ferulic acid, p-coumaric acid, and vanillic acid. The protocatechuic acid and 2,5-dihydroxybenzoic acid were not detected in white samples...
February 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28946240/inorganic-arsenic-contents-in-ready-to-eat-rice-products-and-various-korean-rice-determined-by-a-highly-sensitive-gas-chromatography-tandem-mass-spectrometry
#16
Mun Yhung Jung, Ju Hee Kang, Hyun Jeong Jung, Sang Yong Ma
Rice and rice products have been reported to contain high contents of toxic inorganic arsenic (iAs). The inorganic arsenic contents in microwavable ready-to-eat rice products (n=30) and different types of Korean rice (n=102) were determined by a gas chromatography-tandem mass spectrometry (GC-MS/MS). The method showed low limit of detection (0.015pg), high intra- and inter-day repeatability (<7.3%, RSD), and recovery rates (90-117%). The mean iAs content in the ready-to-eat rice products was 59μgkg(-1) (dry weight basis)...
February 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28943768/quality-characteristics-of-tteokgalbi-with-black-rice-bran-and-organic-acid-to-substitute-synthetic-caramel-colorant
#17
Tae-Kyung Kim, Seung-Hee Hong, Su-Kyung Ku, Young-Boong Kim, Ki-Hong Jeon, Hee-Don Choi, Jong-Dae Park, Kwoan-Sik Park, Yun-Sang Choi
This study aimed to evaluate the quality characteristics of Tteokgalbi with 1% (w/w) black rice bran only (T1), or with black rice bran and one of the following four types of organic acid: ascorbic acid (T2), citric acid (T3), tartaric acid (T4), or maleic acid (T5) as a substitute for caramel colorant. Tteokgalbi with only black rice bran showed the highest (p<0.05) values of moisture content and water holding capacity (WHC), while there were no significant differences in protein content, fat content, ash content, and thiobarbituric acid reactive substance (TBARS) values in treatments and controls (p>0...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28934910/extracts-of-black-and-brown-rice-powders-improve-hepatic-lipid-accumulation-via-the-activation-of-ppar%C3%AE-in-obese-and-diabetic-model-mice
#18
Angelina Dr Felix, Nobuyuki Takahashi, Mami Takahashi, Rie Katsumata-Tsuboi, Ryo Satoh, Teoh Soon Hui, Katsuhiro Miyajima, Dai Nakae, Hirofumi Inoue, Mariko Uehara
Rice powder extract (RPE) from black and brown rice (Oryza sativa L. indica) improves hepatic lipid accumulation in obese and diabetic model mice via peroxisomal fatty acid oxidation. RPE showed PPARα agonistic activity which did not differ between black and brown RPE despite a higher anthocyanin content in black RPE.
September 22, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28934162/gas-chromatography-mass-spectrometry-for-metabolite-profiling-of-japanese-black-cattle-naturally-contaminated-with-zearalenone-and-sterigmatocystin
#19
Katsuki Toda, Emiko Kokushi, Seiichi Uno, Ayaka Shiiba, Hiroshi Hasunuma, Yasuo Fushimi, Missaka P B Wijayagunawardane, Chunhua Zhang, Osamu Yamato, Masayasu Taniguchi, Johanna Fink-Gremmels, Mitsuhiro Takagi
The objective of this study was to evaluate the metabolic profile of cattle fed with or without zearalenone (ZEN) and sterigmatocystin (STC)-contaminated diets using a gas chromatography-mass spectrometry metabolomics approach. Urinary samples were collected from individual animals (n = 6 per herd) from fattening female Japanese Black (JB) cattle herds (23 months old, 550-600 kg). Herd 1 had persistently high urinary ZEN and STC concentrations due to the presence of contaminated rice straw. Herd 2, the second female JB fattening herd (23 months old, 550-600 kg), received the same dietary feed as Herd 1, with non-contaminated rice straw...
September 21, 2017: Toxins
https://www.readbyqxmd.com/read/28918076/simultaneous-detection-of-wheat-dwarf-virus-northern-cereal-mosaic-virus-barley-yellow-striate-mosaic-virus-and-rice-black-streaked-dwarf-virus-in-wheat-by-multiplex-rt-pcr
#20
Peipei Zhang, Yan Liu, Wenwen Liu, Sebastien Massart, Xifeng Wang
Wheat dwarf virus (WDV), barley yellow striate mosaic virus (BYSMV), rice black-streaked dwarf virus (RBSDV) and northern cereal mosaic virus (NCMV) are four viruses infecting wheat and causing similar symptoms. In this paper, a multiplex reverse transcription polymerase chain reaction (m-RT-PCR) method has been developed for the simultaneous detection and discrimination of these viruses. The protocol uses specific primer set for each virus and produces four distinct fragments (273, 565, 783 and 1296bp), detecting the presence of RBSDV, BYSMV, WDV and NCMV, respectively...
September 14, 2017: Journal of Virological Methods
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