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https://www.readbyqxmd.com/read/29155777/transurethral-instillation-procedure-in-adult-male-mouse
#1
Sanghee Lee, Alonso Carrasco, Randall B Meacham, Anna P Malykhina
Transurethral instillation can be used to deliver different solutions with active ingredients (e.g., drugs, chemicals, bacteria, and viruses) locally into the urinary bladder to either induce animal models of bladder pathologies or evaluate the effectiveness of intravesical treatments. Most rodent models of lower urinary tract (LUT) pathologies are induced in female mice due to ease of intravesical instillation of the substances via the female urethra. However, due to anatomical differences between the female and male LUT, transurethral instillation in a male mouse has been deemed a very challenging procedure, and it has not been previously described...
November 2, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155200/recent-advances-on-polysaccharides-lipids-and-protein-based-edible-films-and-coatings-a-review
#2
REVIEW
Bilal Hassan, Shahzad Ali Shahid Chatha, Abdullah Ijaz Hussain, Khalid Mahmood Zia, Naseem Akhtar
Food is a vital product for the survival of human beings and with passage of time quality concerns of consumers are rising. Edible films and coatings are thin layers applied on food products to protect them and improve their quality. Films/coatings are prepared from naturally occurring renewable sources (polysaccharides, proteins, lipids and composites) which we can eat without disposing them. These films are environment friendly and contain antioxidants, anti-browning agents and colorants. Various methods (spraying, brushing, electro-spraying) are used to apply a coating on food material to protect them from microbial growth, prolonging their shelf life and improving other quality aspects like sensory attributes, appearance, originality and freshness of ingredients...
November 16, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29153530/physicochemical-and-sensory-properties-of-yogurts-containing-sacha-inchi-plukenetia-volubilis-l-seeds-and-%C3%AE-glucans-from-ganoderma-lucidum
#3
Ana-Milena Vanegas-Azuero, Luis-Felipe Gutiérrez
Dairy products have been widely used for adding various biomolecules with the aim of improving their functional properties and health benefits. In this study, the physicochemical properties and sensory acceptance of yogurts enriched with sacha inchi (Plukenetia volubilis) seeds (SIS) and β-glucans from Ganoderma lucidum (BGGL) were investigated. The angiotensin-converting enzyme-inhibitory activity of some yogurt samples was also evaluated. Yogurts were produced from reconstituted skim milk powder, and SIS (4% wt/wt) and BGGL were added at different concentrations (0-1...
November 15, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29153180/a-100-year-review-progress-on-the-chemistry-of-milk-and-its-components
#4
John A Lucey, Don Otter, David S Horne
Understanding the chemistry of milk and its components is critical to the production of consistent, high-quality dairy products as well as the development of new dairy ingredients. Over the past 100 yr we have gone from believing that milk has only 3 protein fractions to identifying all the major and minor types of milk proteins as well as discovering that they have genetic variants. The structure and physical properties of most of the milk proteins have been extensively studied. The structure of the casein micelle has been the subject of many studies, and the initial views on submicelles have given way to the current model of the micelle as being assembled as a result of the concerted action of several types of interactions (including hydrophobic and the formation of calcium phosphate nanoclusters)...
December 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29152918/cosmeceutical-effect-of-ethyl-acetate-fraction-of-kombucha-tea-by-intradermal-administration-in-the-skin-of-aged-mice
#5
Nafiseh Pakravan, Elaheh Mahmoudi, Seyed-Ali Hashemi, Jamal Kamali, Reza Hajiaghayi, Mitra Rahimzadeh, Vajiheh Mahmoodi
BACKGROUND/PURPOSE: Natural ingredients have been always an interesting approach to prolong youthful appearance of skin. One of the natural compounds is Kombucha tea (KT), which has been mainly used as an energy drink in Asian countries for a long time. Previous reports indicated that it has pharmaceutical and favorable wound repairing effects. The beneficial properties of KT are thought to be mainly due to the presence of fermentation products such as flavonoids and other polyphenols with inhibition of hydrolytic and oxidative enzymes and anti-inflammatory effects...
November 19, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29152857/rapid-analysis-of-traditional-chinese-medicine-pinellia-ternata-by-microchip-electrophoresis-with-electrochemical-detection
#6
Tsung-Ting Shih, Hui-Ling Lee, Show-Chuen Chen, Chih-Yuan Kang, Ren-Shang Shen, Yi-An Su
Traditional Chinese herbal medicine has long enjoyed the reputation of the world's most advanced system of natural medicine. Pinellia ternata is one of the most commonly used herbs in the traditional Chinese medical science. In this study five representative ingredients of Pinellia ternata guanosine, methionine, glycine, 3,4-dihydroxybenzaldehyde, and homogentisic acid, were assayed using simple derivatization procedures. Under optimized experimental condition, five analytes in Pinellia ternata were rapidly separated and detected using microchip electrophoresis, affording the benefits of speed, minimal sample requirements, and sensitive on-the-chip electrochemical detection, in 5 min with linearity over a concentration of 20-500 μM (R(2 ) = 0...
November 20, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/29149752/hazard-assessment-of-hydraulic-fracturing-chemicals-using-an-indexing-method
#7
Guangji Hu, Tianyi Liu, James Hager, Kasun Hewage, Rehan Sadiq
The rapid expansion of unconventional natural gas production has triggered considerable public concerns, particularly regarding environmental and human health (EHH) risks posed by various chemical additives used in hydraulic fracturing (HF) operations. There is a need to assess the potential EHH hazards of additives used in real-world HF operations. In this study, HF additive and fracturing fluid data was acquired, and EHH hazards were assessed using an indexing approach. The indexing system analyzed chemical toxicological data of different ingredients contained within additives and produced an aggregated EHH safety index for each additive, along with an indicator describing the completeness of the chemical toxicological data...
November 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29149179/postmenopausal-hormone-therapy-and-risk-of-stroke-a-pooled-analysis-of-data-from-population-based-cohort-studies
#8
Germán D Carrasquilla, Paolo Frumento, Anita Berglund, Christer Borgfeldt, Matteo Bottai, Chiara Chiavenna, Mats Eliasson, Gunnar Engström, Göran Hallmans, Jan-Håkan Jansson, Patrik K Magnusson, Peter M Nilsson, Nancy L Pedersen, Alicja Wolk, Karin Leander
BACKGROUND: Recent research indicates a favourable influence of postmenopausal hormone therapy (HT) if initiated early, but not late, on subclinical atherosclerosis. However, the clinical relevance of timing of HT initiation for hard end points such as stroke remains to be determined. Further, no previous research has considered the timing of initiation of HT in relation to haemorrhagic stroke risk. The importance of the route of administration, type, active ingredient, and duration of HT for stroke risk is also unclear...
November 2017: PLoS Medicine
https://www.readbyqxmd.com/read/29147100/purification-and-identification-of-a-natural-antioxidant-protein-from-fertilized-eggs
#9
Shaohua Yang, Lulu Wang, Ying Wang, Xiaoqian Ou, Zhaoyuan Shi, Chongchong Lu, Wei Wang, Guoqing Liu
Fertilized hen eggs are rich in a variety of bioactive ingredients. In this study, we aimed to obtain an antioxidant protein from fertilized eggs and the radical scavenging abilities on 1, 1-diphenyl-2-picrylhydrazyl (DPPH), hydroxyl radical (•OH), superoxide anion (O(2-)•) were used to evaluate the antioxidant activity of the purified protein. During 20 d of incubation, the radical scavenging ability of protein extracted from fertilized eggs exhibited significantly differences and the protein on day 16 showed higher antioxidant capacity...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/29146529/inhibitory-effect-of-the-extract-of-rhizome-of-curcuma-longa-l-in-gelatinase-activity-and-its-effect-on-human-skin
#10
Keiko Muta, Shinji Inomata, Tadao Fukuhara, Junko Nomura, Toshio Nishiyama, Yoh-Ichi Tagawa, Satoshi Amano
Exposure to UV radiation to human skin up-regulates the synthesis of matrix metalloproteinase (MMP) family. Gelatinases are member of MMPs which have been suggested to play an important role in photoaging such as wrinkle formation. To inhibit gelatinase activity is regarded to be very important to keep healthy skin and to protect wrinkle formation. On the other hand, anti-photoaging agents are expected to be derived from natural resources, especially plants. Plant extracts having gelatinase-inhibitory effect that might be used as safe anti-photoaging ingredient were widely screened...
November 13, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/29144022/collagen-a-review-on-its-sources-and-potential-cosmetic-applications
#11
REVIEW
María Isabela Avila Rodríguez, Laura G Rodríguez Barroso, Mirna Lorena Sánchez
Collagen is a fibrillar protein that conforms the conjunctive and connective tissues in the human body, essentially skin, joints, and bones. This molecule is one of the most abundant in many of the living organisms due to its connective role in biological structures. Due to its abundance, strength and its directly proportional relation with skin aging, collagen has gained great interest in the cosmetic industry. It has been established that the collagen fibers are damaged with the pass of time, losing thickness and strength which has been strongly related with skin aging phenomena [Colágeno para todo...
November 16, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29141192/impact-of-the-cultivation-strategy-on-resveratrol-production-from-glucose-in-engineered-corynebacterium-glutamicum
#12
Adelaide Braga, Joana Oliveira, Rita Silva, Patricia Ferreira, Isabel Rocha, Nicolai Kallscheuer, Jan Marienhagen, Nuno Faria
The health benefits of polyphenols such as stilbenes and flavonoids for humans are increasingly attracting attention. Resveratrol is a well-characterized naturally-occurring stilbene and potent anti-oxidant, which is used as food supplement and cosmetic ingredient. Several microorganisms including Corynebacterium glutamicum were engineered for resveratrol production from glucose. Based on the cultivation of a resveratrol-producing C. glutamicum strain in shake flasks, different strategies for improving production under controlled conditions at bioreactor scale were tested...
November 12, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/29140655/the-%C3%A2-natural%C3%A2-vs-%C3%A2-natural-flavors%C3%A2-conflict-in-food-labeling-a-regulatory-viewpoint
#13
Matthew J Goodman
Food branded with a Natural label can be found in any grocery store across the United States. Consumers consider this label to be an important attribute when making a purchasing decision and billions of dollars are spent annually on these products. While many consumers believe Natural foods are healthier, heavy reliance on that assumption is misguided as “Natural” has no formal legal definition—it’s merely defined pursuant to an FDA approved informal policy. Another important health attribute in a consumer’s purchasing decision is the presence of natural flavors in food...
2017: Food and Drug Law Journal
https://www.readbyqxmd.com/read/29138909/improvement-of-biosynthesis-and-accumulation-of-bioactive-compounds-by-elicitation-in-adventitious-root-cultures-of-polygonum-multiflorum
#14
Thanh-Tam Ho, Jong-Du Lee, Cheol-Seung Jeong, Kee-Yoeup Paek, So-Young Park
We examined the effects of abiotic (methyl jasmonate [MeJA] and salicylic acid [SA]) and biotic (yeast extract and chitosan) elicitors for improvement of bioactive compounds production on adventitious root cultures in Polygonum multiflorum. The application of yeast extract resulted in significantly (p ≤ 0.05) higher dry root biomass (9.98 g/L) and relative growth rate versus the control. Cultures treated with abiotic elicitors showed higher percentage of dry weight than the other samples. Low concentrations of all elicitors (50 μM MeJA and SA, and 50 mg/L yeast extract) improved secondary metabolite production except for chitosan, whose performance was worse than that of the control...
November 14, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29136757/muscone-exerts-protective-roles-on-alcohol-induced-osteonecrosis-of-the-femoral-head
#15
Yan-Jie Guo, Shi-Hua Luo, Ming-Jie Tang, Zu-Bin Zhou, Jun-Hui Yin, You-Shui Gao, Xiao-Qian Dang
Long-term alcohol abuse causes musculoskeletal disorders, among of which, alcohol-induced osteonecrosis of the femoral head (ONFH) is of concern due to its significant and severe complications. A variety of methods have been attempted to prevent alcohol-induced ONFH, and monomers extracted from Chinese herbs might benefit the disease profoundly. In the current study, muscone, the main ingredient of musk, was used to prevent alcohol-induced ONFH. In vitro, ethanol was used to affect the potential of osteogenesis and proliferation of human bone mesenchymal stem cells (hBMSCs), and beneficial role of muscone was investigated on hBMSCs...
November 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29124056/microbial-therapeutics-designed-for-infant-health
#16
REVIEW
Claire Watkins, Catherine Stanton, C Anthony Ryan, R Paul Ross
Acknowledgment of the gut microbiome as a vital asset to health has led to multiple studies attempting to elucidate its mechanisms of action. During the first year of life, many factors can cause fluctuation in the developing gut microbiome. Host genetics, maternal health status, mode of delivery, gestational age, feeding regime, and perinatal antibiotic usage, are known factors which can influence the development of the infant gut microbiome. Thus, the microbiome of vaginally born, exclusively breastfed infants at term, with no previous exposure to antibiotics, either directly or indirectly from the mother, is to be considered the "gold standard...
2017: Frontiers in Nutrition
https://www.readbyqxmd.com/read/29121910/thai-plants-with-high-antioxidant-levels-free-radical-scavenging-activity-anti-tyrosinase-and-anti-collagenase-activity
#17
Moragot Chatatikun, Anchalee Chiabchalard
BACKGROUND: Ultraviolet radiation from sunlight induces overproduction of reactive oxygen species (ROS) resulting in skin photoaging and hyperpigmentation disorders. Novel whitening and anti-wrinkle compounds from natural products have recently become of increasing interest. The purpose of this study was to find products that reduce ROS in 14 Thai plant extracts. METHODS: To determine total phenolic and flavonoid content, antioxidant activity, anti-tyrosinase activity and anti-collagenase activity, we compared extracts of 14 Thai plants prepared using different solvents (petroleum ether, dichloromethane and ethanol)...
November 9, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29120757/phenolic-profiles-and-antioxidant-activity-of-turkish-tombul-hazelnut-samples-natural-roasted-and-roasted-hazelnut-skin
#18
Ebru Pelvan, Elmas Öktem Olgun, Ayşe Karadağ, Cesarettin Alasalvar
The phenolic profiles and antioxidant status of hazelnut samples [natural (raw) hazelnut, roasted hazelnut, and roasted hazelnut skin] were compared. Free and bound (ester-linked and glycoside-linked) phenolic acids were examined using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Comprehensive identification of phenolics was carried out using Q-exactive hybrid quadrupole-orbitrap mass spectrometer (Q-OT-MS). Samples were also assessed for their total phenolics and antioxidant activities using three different assays...
April 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29119501/a-primer-on-mathematical-modeling-in-the-study-of-organisms-and-their-parts
#19
Maël Montévil
Mathematical modeling is a very powerful tool for understanding natural phenomena. Such a tool carries its own assumptions and should always be used critically. In this chapter, we highlight the key ingredients and steps of modeling and focus on their biological interpretation. In particular, we discuss the role of theoretical principles in writing models. We also highlight the meaning and interpretation of equations. The main aim of this chapter is to facilitate the interaction between biologists and mathematical modelers...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29117131/natural-deep-eutectic-solvents-nades-to-enhance-berberine-absorption-an-in-vivo-pharmacokinetic-study
#20
Stefania Sut, Marta Faggian, Valeria Baldan, Gabriele Poloniato, Ignazio Castagliuolo, Iztok Grabnar, Beatrice Perissutti, Paola Brun, Filippo Maggi, Dario Voinovich, Gregorio Peron, Stefano Dall'Acqua
In the present study results related to the in vivo administration of Natural Deep Eutectic Solvents (NADES)-solubilized berberine are reported for the first time. NADES are mixtures of small natural compounds having a melting point significantly lower than that of any individual component. Such solvents have gained much attention of the scientific community in the green chemistry area, being considered useful alternatives to common organic solvents. NADES can be used also as administration vehicles, and this can be attractive for nutraceutical products when eutectics are formed with food grade ingredients...
November 8, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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