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https://www.readbyqxmd.com/read/29352085/the-expression-of-bacteriocin-production-and-self-resistance-in-lactobacillus-brevis-174a-is-mediated-by-two-regulatory-proteins
#1
Masafumi Noda, Rumi Miyauchi, Narandalai Danshiitsoodol, Yasuyuki Matoba, Takanori Kumagai, Masanori Sugiyama
We have previously shown that a lactic acid bacterium Lactobacillus (Lb.) brevis 174A isolated from a Citrus iyo fruit produces bacteriocin designated brevicin 174A, which is comprised of two antibacterial polypeptides (designated brevicin 174A-β and 174A-γ). We have also found a gene cluster, composed of eight open reading frames (ORFs), that contains genes for the biosynthesis of brevicin 174A, self-resistance to its own bacteriocin, and two transcriptional regulatory proteins.Some lactic acid bacterial strains have a system to start the production of bacteriocin at an adequate stage of the growth...
January 19, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29346059/fermented-extraction-of-citrus-unshiu-peel-inhibits-viability-and-migration-of-human-pancreatic-cancers
#2
Jungwhoi Lee, Jungsul Lee, Myungseung Kim, Jae Hoon Kim
Pancreatic cancer is one of the most dangerous cancers with high mortality rates. Despite continuous efforts, there has been limited improvement in its prognosis. In this study, we prepared fermented extract of Citrus unshiu peel (fCUP) from the by-product after juice processing and then examined the anticancer effects of fCUP on human pancreatic cancer cells. Treatment with fCUP inhibited the growth of human pancreatic cancer cells through induction of caspase-3 cleavage both in vitro and in vivo. Treatment with fCUP also blocked the migration of human pancreatic cancer cells through activation of intracellular signaling pathways such as MKK3/6 and P38...
January 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29345218/mitochondrial-dna-suggests-cryptic-speciation-in-prodiplosis-longifila-gagn%C3%A3-diptera-cecidomyiidae-associated-with-geographic-distance-and-host-specialization
#3
D N Duque-Gamboa, M F Castillo-Cárdenas, L M Hernández, Y C Guzmán, M R Manzano, N Toro-Perea
Prodiplosis longifila is reported as a pest of a wide range of species cultivated in America, including citrus, solanaceous species and asparagus. This species has different behavioural traits that are primarily centred on the oviposition habit and the feeding of larvae, which can change depending on the host. However, scarce information is available on population studies and the natural history of this insect, and uncertainty exists about the taxonomic identity and the geographic distribution of this species...
January 18, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29345053/naringenin-4-5-7-trihydroxyflavanone-suppresses-the-development-of-precancerous-lesions-via-controlling-hyperproliferation-and-inflammation-in-the-colon-of-wistar-rats
#4
Muneeb U Rehman, Manzoor Ur Rahman Mir, Adil Farooq, Shahzada Mudasir Rashid, Bilal Ahmad, Sheikh Bilal Ahmad, Rayeesa Ali, Ishraq Hussain, Mubashir Masoodi, Showkeen Muzamil, Hassan Madkhali, Majid Ahmad Ganaie
Colon cancer is a world-wide health problem and one of the most dangerous type of cancer, affecting both men and women. Naringenin (4, 5, 7-trihydroxyflavanone) is one of the major flavone glycoside present in citrus fruits. Naringenin has long been used in Chinese's traditional medicine because of its exceptional pharmacological properties and non-toxic nature. In the present study, we investigated the chemopreventive potential of Naringenin against 1,2-dimethyhydrazine (DMH)-induced precancerous lesions, that is, aberrant crypt foci (ACF) and mucin depleted foci (MDF), and its role in regulating the oxidative stress, inflammation and hyperproliferation, in the colon of Wistar rats...
January 18, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29344754/green-and-sustainable-separation-of-natural-products-from-agro-industrial-waste-challenges-potentialities-and-perspectives-on-emerging-approaches
#5
REVIEW
Vânia G Zuin, Luize Z Ramin
New generations of biorefinery combine innovative biomass waste resources from different origins, chemical extraction and/or synthesis of biomaterials, biofuels, and bioenergy via green and sustainable processes. From the very beginning, identifying and evaluating all potentially high value-added chemicals that could be removed from available renewable feedstocks requires robust, efficient, selective, reproducible, and benign analytical approaches. With this in mind, green and sustainable separation of natural products from agro-industrial waste is clearly attractive considering both socio-environmental and economic aspects...
January 17, 2018: Topics in Current Chemistry (Journal)
https://www.readbyqxmd.com/read/29342179/the-polymethoxy-flavonoid-sudachitin-suppresses-inflammatory-bone-destruction-by-directly-inhibiting-osteoclastogenesis-due-to-reduced-ros-production-and-mapk-activation-in-osteoclast-precursors
#6
Yoko Ohyama, Junta Ito, Victor J Kitano, Jun Shimada, Yoshiyuki Hakeda
Inflammatory bone diseases, including rheumatoid arthritis, periodontitis and peri-implantitis, are associated not only with the production of inflammatory cytokines but also with local oxidative status, which is defined by intracellular reactive oxygen species (ROS). Osteoclast differentiation has been reported to be related to increased intracellular ROS levels in osteoclast lineage cells. Sudachitin, which is a polymethoxyflavone derived from Citrus sudachi, possesses antioxidant properties and regulates various functions in mammalian cells...
2018: PloS One
https://www.readbyqxmd.com/read/29339969/a-new-toolset-for-protein-expression-and-subcellular-localization-studies-in-citrus-and-its-application-to-citrus-tristeza-virus-proteins
#7
Amit Levy, Choaa El-Mochtar, Chunxia Wang, Michael Goodin, Vladimir Orbovic
Background: Transient gene expression is a powerful tool to study gene function in plants. In citrus, Agrobacterium transformation is the method of choice for transient expression studies, but this method does not work efficiently with many gene constructs, and there is a need for a more robust transient expression system in citrus leaves. Biolistic particle delivery is an alternative to Agrobacterium transformation, and in some plants, such as Arabidopsis, gives higher transformation rates in leaf tissues than Agrobacterium...
2018: Plant Methods
https://www.readbyqxmd.com/read/29338343/molecular-analysis-of-anthocyanin-biosynthesis-pathway-genes-and-their-differential-expression-in-mango-peel
#8
Anju Bajpai, Kasim Khan, M Muthukumar, S Rajan, Nagendra Kumar Singh
Mango fruit is cherished by masses for its taste and nutrition, contributed by color, flavor and aroma. Among these, peel color is an important trait contributing to fruit quality and market value. We attempted to elucidate the role of key genes of anthocyanin biosynthesis pathway related to fruit peel color from the leaf transcriptome of cv. Amrapali. A total of 108 mined transcript sequences were assigned to phenylpropanoid flavonoid pathway from which 15 contigs representing anthocyanin biosynthesis genes were annotated...
January 16, 2018: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/29337219/citrus-bioflavonoid-hesperetin-as-inhibitor-of-two-thrombin-like-snake-venom-serine-proteases-isolated-from-crotalus-simus
#9
Roney Vander Dos Santos, Fabian Villalta-Romero, Danijela Stanisic, Luiz Borro, Goran Neshich, Ljubica Tasic
Around 5.5 million people suffer from snakebites per year, with about 400,000 cases with some type of sequelae, such as amputation, and 20,000 to 125,000 cases with the fatal end. Usually, the victim outcome depends on correct, agile and many times in situ intervention based on the proper identification of the snake venom type and its potential effects, among other factors. Therefore, knowledge on the snake venom composition and a research on inhibitors of snake venom target components might ameliorate envenoming dangerous outcome...
January 11, 2018: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/29336665/pesticide-exposure-and-health-conditions-among-orange-growers-in-southern-brazil
#10
Joice Lermen, Tanandra Bernieri, Isabel S Rodrigues, Edna S Suyenaga, PatrÍcia G Ardenghi
This study aimed to evaluate the exposure to pesticides through the biomarkers analysis, as well as life habits and use of Personal Protective Equipment (PPE) in a group of farmers who grow citrus in the Vale do Caí region, in Rio Grande do Sul, southern Brazil. The study population consisted of 73 volunteer farmers, 45 males and 28 females, aged between 13 and 69 years old. The control group consisted of 30 individuals who were not exposed to pesticides. Measures of urea, creatinine, aspartate aminotransferase (AST), alanine aminotransferase (ALT), gamma-glutamyltransferase (GGT), plasma cholinesterase (BChE) activity, and hematological parameters were analyzed...
January 16, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29335513/optimal-ranges-of-variables-for-an-effective-adsorption-of-lead-ii-by-the-agricultural-waste-pomelo-citrus-grandis-peels-using-doehlert-designs
#11
Xiao-Lan Yu, Yong He
The capacity of pomelo peels' adsorption on lead(II) from aqueous solutions without modifications was investigated and confirmed. Four variables in this study, pH, temperature, time and initial concentration of lead(II), significantly affected the adsorption rate of pomelo peels. The prediction model and optimal ranges of optimized variables were given by Doehlert designs, which made the selection of variables rapid, flexible and effortless to obtain an adsorption rate reaching 99.9% and 20 mg/L for initial lead(II) concentration, 3 for pH, 50 °C for temperature and 210 min for time was a choice...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29334873/nobiletin-prevents-cadmium-induced-neuronal-apoptosis-by-inhibiting-reactive-oxygen-species-and-modulating-jnk-erk1-2-and-akt-mtor-networks-in-rats
#12
Youyang Qu, Yu Liu, Li Chen, Yanmei Zhu, Xingjun Xiao, Di Wang, Yulan Zhu
Objectives Cadmium (Cd), an extremely noxious environmental pollutant is known to induce oxidative stress leading to neurodegenerative diseases. Nobiletin, a citrus flavonoid is reported to possess various pharmacological properties. This study investigates the effects of nobiletin over Cd-induced neuronal apoptosis in rodent experimental model. Methods To separate group of male Sprague Dawley rats, Cd (2 mL/kg/day) was subcutaneously injected for one month which results in a dose level of 1 mg/kg Cd. Couple of days prior to Cd injection, the treatment group rats regularly received nobiletin (50, 100, or 200 mg/kg b...
January 16, 2018: Neurological Research
https://www.readbyqxmd.com/read/29334238/chemical-constituents-from-the-flowers-of-satsuma-mandarin-and-their-free-radical-scavenging-and-%C3%AE-glucosidase-inhibitory-activities
#13
Anjana Adhikari-Devkota, Sara Mustafa Idris Elbashir, Takashi Watanabe, Hari Prasad Devkota
Flowers of Citrus plants are used as mild sedatives and for the treatment of insomnia in traditional medicines. In Japan, tea made from the flowers of Satsuma mandarin is consumed as healthy drink. Hesperidin (1), hesperetin (2), rutin (3), quercetin (4), nicotiflorin (5), eriocitrin (6), narirutin (7), phenylethyl glucoside (8) and unshuoside A (9) were isolated from the MeOH extract of fresh flowers. Structure elucidation of these compounds was performed on the basis of NMR spectroscopic data. Among them, rutin (3), quercetin (4) and eriocitrin (6) showed potent free radical scavenging activity, whereas hesperetin (2) and quercetin (4) showed potent α-glucosidase inhibitory activity...
January 15, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29331869/dietary-naringenin-supplementation-attenuates-experimental-autoimmune-encephalomyelitis-by-modulating-autoimmune-inflammatory-responses-in-mice
#14
Junpeng Wang, Ying Qi, Xinli Niu, Hua Tang, Simin Nikbin Meydani, Dayong Wu
Autoimmune disease is highly prevalent in humans. Since conventional therapies have limited efficacy and often come with significant side effects, nutrition may provide an alternative and complementary approach to improving autoimmune disorders. Naringenin, a flavonoid found in citrus fruits, has been shown to have anti-inflammatory and antioxidant properties. Using the experimental autoimmune encephalomyelitis (EAE), a rodent model of human multiple sclerosis, we determined the effect of dietary naringenin (0...
December 11, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29330852/characteristics-and-intestinal-immunomodulating-activities-of-water-soluble-pectic-polysaccharides-from-chenpi-with-different-storage-periods
#15
Changcheng Tian, Xu Hui, Jing Li, Zhuo Han
BACKGROUND: Traditional view considers that the long-term stored Chenpi (dried citrus peel) has better health efficacies as compared with the fresh Chenpi, but the detailed mechanism remains obscure. RESULTS: The three water-soluble pectic polysaccharides (CPP1, CPP5 and CPP10) were obtained from one-year, five-year and ten-year Chenpi, respectively, and their physicochemical characteristics and intestinal immunomodulating activities were investigated and compared...
January 13, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29329847/encapsulation-of-anthocyanins-from-bilberries-effects-on-bioavailability-and-intestinal-accessibility-in-humans
#16
Dolores Mueller, Kathrin Jung, Manuel Winter, Dorothee Rogoll, Ralph Melcher, Ulrich Kulozik, Karin Schwarz, Elke Richling
Anthocyanins are flavonoids that have been suggested to provide beneficial health effects. The biological activity of anthocyanins is influenced by their pharmacokinetic properties, but anthocyanins are associated with limited bioavailability in humans. In the presented study, we investigated how the encapsulation of bilberry extract (BE), a source of anthocyanins, with either whey protein or citrus pectin influences the bioavailability and intestinal accessibility of anthocyanins in humans. We performed an intervention study that analyzed anthocyanins and their degradation products in the urine, plasma, and ileal effluent of healthy volunteers and ileostomists (subjects without an intact colon)...
May 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29328677/metabolic-analysis-reveals-altered-long-chain-fatty-acid-metabolism-in-the-host-by-huanglongbing-disease
#17
Joon Hyuk Suh, Yue Niu, Zhibin Wang, Fred G Gmitter, Yu Wang
Candidatus Liberibacter asiaticus (CLas) is the presumed causal agent of Huanglongbing, one of the most destructive diseases in citrus. However, the lipid metabolism component of host response to this pathogen has not been investigated well. Here, metabolic profiling of a variety of long-chain fatty acids and their oxidation products was firstly performed to elucidate altered host metabolic responses of disease. Fatty acid signals were found to decrease obviously in response to disease regardless of cultivar...
January 12, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29324427/lemons-in-the-arizona-sunshine-the-effects-of-furocoumarins-leading-to-phytophotodermatitis-and-burn-like-injuries
#18
Marc R Matthews, Joel C VanderVelde, Daniel M Caruso, Kevin N Foster
INTRODUCTION: Phytophototoxic dermatitis is a strong phototoxic reaction to ultraviolet A (UV-A) radiation exposure after cutaneous contact with citrus fruit containing furocoumarins, leading to skin injury. At the Arizona Burn Center (Phoenix, AZ), the majority of these injuries are managed in the outpatient setting. CASE REPORT: The authors present a pediatric admission for burn-like injuries following prolonged cutaneous exposure to lemons while playing in the Arizona sunshine...
December 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/29323263/putative-sex-pheromone-of-the-asian-citrus-psyllid-diaphorina-citri-breaks-down-into-an-attractant
#19
Odimar Z Zanardi, Haroldo X L Volpe, Arodi P Favaris, Weliton D Silva, Rejane A G Luvizotto, Rodrigo F Magnani, Victoria Esperança, Jennifer Y Delfino, Renato de Freitas, Marcelo P Miranda, José Roberto P Parra, José Mauricio S Bento, Walter S Leal
Under laboratory conditions, mating activity in Asian citrus psyllid (ACP) started 4 days after emergence, peaked at day 7, and showed a clear window of activity starting 8 h into the photophase and extending through the first hour of the scotophase. We confirmed that ACP males are attracted to emanations from conspecific females. Traps loaded with a candidate compound enriched with female extract, lignoceryl acetate (24Ac), at various doses were active only after being deployed for several weeks in the field, suggesting that a degradation product, not the test compound, was the active ingredient(s)...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29322059/citrus-seed-oils-efficacy-against-larvae-of-aedes-aegypti
#20
Hazrat Bilal, Waseem Akram, Soaib Ali Hassan, Sadrud Din
Background: Dengue fever is a serious public health issue in Pakistan for many years. Globally plants have been reported to contain compounds with insecticidal properties. These properties have been demonstrated more recently on the larval stages of mosquitoes. Therefore, Citrus cultivar seeds were evaluated for larvicidal potential against the primary dengue vector Aedes aegypti. Methods: Extraction of oil was done by a steam distillation method and oils were evaluated according to WHO guidelines for larvicides 2005 for evaluation of insecticidal properties of citrus seed extracts against mosquito larvae...
September 2017: Journal of Arthropod-borne Diseases
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