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https://www.readbyqxmd.com/read/28071026/antiradical-capacity-and-polyphenol-composition-of-asparagus-spears-varieties-cultivated-under-different-sunlight-conditions
#1
Bartosz Kulczyński, Joanna Kobus-Cisowska, Dominik Kmiecik, Anna Gramza-Michałowska, Dorota Golczak, Józef Korczak
BACKGROUND: Asparagus officinalis has a high nutritional value. Asparagus is rich in a number of bioactive compounds, mainly flavonoids (quercetin), glutathione, vitamin C, vitamin E, fructans (inulin and fructooligosaccharides) and phytosterols (b-sitosterol). These compounds may play an important role in human health. The purpose of this study was to examine the antioxidant potential and polyphenol composition of white, pale-colored and green asparagus spears of different cultivars...
July 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28071017/evaluation-of-the-potential-use-of-probiotic-strain-lactobacillus-plantarum-299v-in-lactic-fermentation-of-button-mushroom-fruiting-bodies
#2
Ewa Jabłońska-Ryś, Aneta Sławińska, Wojciech Radzki, Waldemar Gustaw
BACKGROUND: The available literature does not provide data on the application of probiotic strains in mushroom processing. The aim of the study was to evaluate the potential to use the L. plantarum 299v strain with documented probiotic properties in the process of lactic fermentation of button mushroom fruiting bodies (Agaricus bisporus). METHODS: Fresh button mushroom fruiting bodies and cultures of lactic acid bacteria L. plantarum Ib and a probiotic strain L...
October 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28071008/microwave-assisted-extraction-of-phenolic-compounds-from-polygonum-multiflorum-thunb-roots
#3
Le Pham Tan Quoc, Nguyen Van Muoi
BACKGROUND: The aim of this study was to determine the best extraction conditions for total phenolic content (TPC) and antioxidant capacity (AC) of Polygonum multiflorum Thunb. root using microwave-assisted extraction (MAE). METHODS: The raw material used was Polygonum multiflorum Thunb. root powder. Five factors such as solvent type, solvent concentrations, solvent/material ratio, extraction time and microwave power were studied; TPC and AC values were determined by the Folin-Ciocalteu method and DPPH free radical scavenging activity measurement, respectively...
April 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28044263/five-fraction-stereotactic-body-radiation-therapy-sbrt-and-chemotherapy-for-the-local-management-of-metastatic-pancreatic-cancer
#4
Jonathan W Lischalk, Aidan Burke, Jessica Chew, Christen Elledge, Marie Gurka, John Marshall, Michael Pishvaian, Sean Collins, Keith Unger
BACKGROUND: The majority of patients with pancreatic cancer are diagnosed with metastatic disease at presentation. Nevertheless, local progression is responsible for up to 30% of deaths and can lead to significant morbidity. As a consequence, further exploration of effective methods of local control and palliation is essential. Stereotactic body radiation therapy (SBRT) is a widely utilized technique for the treatment of localized pancreatic cancer. Here, we report our experience with SBRT and chemotherapy for the local treatment of the metastatic patient population...
January 3, 2017: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/28025550/targeted-metabolomic-analysis-of-polyphenols-with-antioxidant-activity-in-sour-guava-psidium-friedrichsthalianum-nied-fruit
#5
Carmen Tatiana Cuadrado-Silva, Maria Ángeles Pozo-Bayón, Coralia Osorio
Psidium is a genus of tropical bushes belonging to the Myrtaceae family distributed in Central and South America. The polar extract of Psidium friedrichsthalianum Nied. was partitioned with ethyl ether, ethyl acetate, and n-butanol, and the total phenolic content and antioxidant activity were measured by Folin-Ciocalteu and ABTS assays, respectively. The ethyl acetate fraction exhibited both the highest phenolic content and antioxidant activity. Due to the complexity of this fraction, an analytical method for the comprehensive profiling of phenolic compounds was done by UPLC-ESI/QqQ in MRM (multiple reaction monitoring) mode...
December 23, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28024731/olive-oil-polyphenols-a-quantitative-method-by-high-performance-liquid-chromatography-diode-array-detection-for-their-determination-and-the-assessment-of-the-related-health-claim
#6
Massimo Ricciutelli, Shara Marconi, Maria Chiara Boarelli, Giovanni Caprioli, Gianni Sagratini, Roberto Ballini, Dennis Fiorini
In order to assess if an extra virgin olive oil (EVOO) can be acknowledged with the health claim related to olive oil polyphenols (Reg. EU n.432/2012), a new method to quantify these species in EVOO, by means of liquid-liquid extraction followed by HPLC-DAD/MS/MS of the hydroalcoholic extract, has been developed and validated. Different extraction procedures, different types of reverse-phase analytical columns (Synergi Polar, Spherisorb ODS2 and Kinetex) and eluents have been tested. The chromatographic column Synergi Polar (250×4...
December 11, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28008674/understanding-the-effects-of-roasting-on-antioxidant-components-of-coffee-brews-by-coupling-on-line-abts-assay-to-high-performance-size-exclusion-chromatography
#7
Sebastian E W Opitz, Bernard A Goodman, Marco Keller, Samo Smrke, Marco Wellinger, Stefan Schenker, Chahan Yeretzian
INTRODUCTION: Coffee is a widely consumed beverage containing antioxidant active compounds. During roasting the phytochemical composition of the coffee bean changes dramatically and highly polymeric substances are produced. Besides chlorogenic acids that are already present in green coffee beans, melanoidins show antioxidant capacity as well. OBJECTIVE: To employ post-column derivatisation by coupling high performance size exclusion chromatography (HPSEC) to an antioxidant assay to investigate the effect of roasting on the properties of antioxidant active compounds in coffee brews...
December 23, 2016: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28006055/association-of-dna-mismatch-repair-and-mutations-in-braf-and-kras-with-survival-after-recurrence-in-stage-iii-colon-cancers-a-secondary-analysis-of-2-randomized-clinical-trials
#8
Frank A Sinicrope, Qian Shi, Carmen J Allegra, Thomas C Smyrk, Stephen N Thibodeau, Richard M Goldberg, Jeffrey P Meyers, Kay L Pogue-Geile, Greg Yothers, Daniel J Sargent, Steven R Alberts
Importance: The association of biomarkers with patient survival after recurrence (SAR) of cancer is poorly understood but may guide management and treatment. Objective: To determine the association of DNA mismatch repair (MMR) status and somatic mutation in the B-Raf proto-oncogene (c.1799T>A [V600E]; BRAFV600E) or exon 2 of the KRAS proto-oncogene (KRAS) in the primary tumor with SAR in patients with stage III colon carcinomas treated with adjuvant chemotherapy...
December 22, 2016: JAMA Oncology
https://www.readbyqxmd.com/read/27987319/unusual-scrotal-and-penile-ulcerations-together-with-palmar-plantar-erythrodysesthesia-syndrome-in-a-patient-with-metastatic-colon-carcinoma-treated-with-capecitabine
#9
Suzana Ljubojevic Hadzavdic, Daska Stulhofer Buzina, Imbrane Murtezani, Mihael Skerlev
Capecitabine is an orally administered chemotherapeutic drug used in the treatment of colorectal and breast cancer, as well as of metastatic disease, either as a single agent or combined with other agents (1). A 63 -year-old man presented with painful penile and scrotal ulcerations (Figure 1). Four years prior to admission, the patient underwent ileocecal resection for cecum cancer (pT3, N1, M0, Duke's C) with metastases in the mesocolic lymph nodes. He received 6 cycles of Mayo Clinic adjuvant regimen consisting of 5-fluorouracil (5-FU) and leucovorin (folinic acid)...
December 17, 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/27981797/laserpitium-zernyi-hayek-flower-and-herb-extracts-phenolic-compounds-and-anti-edematous-antioxidant-and-antimicrobial-activities
#10
Višnja B Popović, Maja A Tomić, Radica M Stepanović-Petrović, Ana M Micov, Marina T Milenković, Silvana D Petrović, Ljuboš J Ušjak, Marjan S Niketić
Phenolic compounds and different biological activities of the dry methanol extracts of the flowers and the herb (aerial parts without flowers) of Laserpitium zernyi Hayek (Apiaceae) were investigated. The total phenolic contents in the extracts were determined spectrophotometrically using Folin-Ciocalteu reagent. In both extracts, apigenin, luteolin, their 7-O-glucosides and chlorogenic acid were detected by HPLC. Identified phenolics were quantified in both extracts, except luteolin in L. zernyi herb extract...
December 16, 2016: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/27979153/the-effects-of-heat-treatment-on-the-phenolic-composition-and-antioxidant-capacity-of-red-wine-pomace-seasonings
#11
Raquel Del Pino-García, María L González-SanJosé, María D Rivero-Pérez, Javier García-Lomillo, Pilar Muñiz
The impact of thermal processing on the phenolic profile and antioxidant capacity (TAC) of powdered red wine pomace seasonings (RWPSs) obtained from different sources (seedless: Sk-S; whole: W-S; seeds: Sd-S) was assessed. High contents in anthocyanins, flavonol-3-O-glycosides, phenolic acids and flavan-3-ols were found in Sk-S, whereas flavan-3-ols and phenolic acids were the main compounds identified in Sd-S. Reductions in the anthocyanidin and flavonol-3-ol contents mainly determined the effect of heat on the total phenolic contents (Sk-S: -29...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27979059/total-polyphenols-content-in-white-wines-on-a-microfluidic-flow-injection-analyzer-with-embedded-optical-fibers
#12
Sandoval-Ventura Oscar, Olguín-Contreras Luis Fernando, Cañizares-Macías María Del Pilar
Absorbance detection in food microdevices has not been thoroughly used due to low levels of sensitivity in measurements. Thus, it is necessary to develop microfluidic methods for improving photometric detection. For this purpose, a simple coupled-optical-fiber-polydimethylsiloxane (PDMS) microdevice was developed, to quantify polyphenols content in white wine employing the Folin-Ciocalteu reaction method. A 6V and 10W halogen lamp with an optical path length of 7mm between optical fibers, which were placed into the microchip, using guides at the outlet of the flow, increased the level of sensitivity during detection...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27951745/studies-on-phytochemical-antioxidant-anti-inflammatory-hypoglycaemic-and-antiproliferative-activities-of-echinacea-purpurea-and-echinacea-angustifolia-extracts
#13
Rayn Clarenc Aarland, Angel Ernesto Bañuelos-Hernández, Mabel Fragoso-Serrano, Edgar Del Carmen Sierra-Palacios, Fernando Díaz de León-Sánchez, Laura Josefina Pérez-Flores, Fernando Rivera-Cabrera, José Alberto Mendoza-Espinoza
CONTEXT: Echinacea (Asteraceae) is used because of its pharmacological properties. However, there are few studies that integrate phytochemical analyses with pharmacological effects. OBJECTIVE: Evaluate the chemical profile and biological activity of hydroalcoholic Echinacea extracts. MATERIALS AND METHODS: Density, dry matter, phenols (Folin-Ciocalteu method), flavonoids (AlCl3 method), alkylamides (GC-MS analysis), antioxidant capacity (DPPH and ABTS methods), antiproliferative effect (SRB assay), anti-inflammatory effect (paw oedema assay, 11 days/Wistar rats; 0...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27938595/-two-cases-with-generalized-intracranial-calcification-due-to-hereditary-folate-malabsorption-and-literature-review
#14
Y Zhang, Q Wang, D X Li, Y P Liu, J Q Song, M Q Li, Y P Qin, Y L Yang
Objective: This study aimed to investigate the clinical, biochemical and genetic features of two Chinese children with hereditary folate malabsorption. Method: Clinical features, laboratory examinations, treatment and SLC46A1 gene of two cases were studied. Reports on hereditary folate malabsorption utill September of 2016 were searched and the clinical and genetic characteristics of reported cases were summarized. Result: The two patients presented with megaloblastic anemia from their infant period and seizures, psychomotor retardation and regression...
December 2, 2016: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/27937034/phytochemical-analysis-and-antioxidant-activity-of-lycium-barbarum-goji-cultivated-in-greece
#15
Amina Benchennouf, Spyros Grigorakis, Sofia Loupassaki, Eugene Kokkalou
CONTEXT: The fruit of Lycium barbarum L. (Solanaceae), known as goji berry, has been exploited for a long time in traditional Chinese medicine. In recent decades, it has received much attention as one of the trendiest functional foods with a wide array of pharmacological activities in Western diets. OBJECTIVE: In this study the phenolic profile and potential antioxidant capacity of Lycium barbarum cultivated in Crete (Greece) were investigated. MATERIALS AND METHODS: The berries were defatted with hexane and then extracted with dichloromethane and methanol using a Soxhlet apparatus...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27933277/lectins-from-synadenium-carinatum-scll-and-artocarpus-heterophyllus-artinm-are-able-to-induce-beneficial-immunomodulatory-effects-in-a-murine-model-for-treatment-of-toxoplasma-gondii-infection
#16
Eliézer L P Ramos, Silas S Santana, Murilo V Silva, Fernanda M Santiago, Tiago W P Mineo, José R Mineo
Infection by Toxoplasma gondii affects around one-third of world population and the treatment for patients presenting toxoplasmosis clinically manifested disease is mainly based by a combination of sulfadiazine, pyrimethamine, and folinic acid. However, this therapeutic protocol is significantly toxic, causing relevant dose-related bone marrow damage. Thus, it is necessary to improve new approaches to investigate the usefulness of more effective and non-toxic agents for treatment of patients with toxoplasmosis...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/27931153/the-mutagenic-antimutagenic-and-antioxidant-properties-of-hypericum-lydium
#17
Rukiye Boran, Aysel Ugur
CONTEXT: There is a growing market demand for Hypericum sp., a pharmacologically active plant that has been traditionally used to treat various ailments. However, there have been limited studies on the extract or essential oil of Hypericum lydium Boiss (Hypericaceae). OBJECTIVE: This study investigates for the first time the antioxidant, mutagenic and antimutagenic activity of an ethanol extract of H. lydium. MATERIAL AND METHODS: Ethanol extract from aerial parts of H...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27920498/feasibility-of-sequential-adjuvant-chemotherapy-with-a-3-month-oxaliplatin-based-regimen-followed-by-3-months-of-capecitabine-in-patients-with-stage-iii-and-high-risk-stage-ii-colorectal-cancer-jswog-c2-study
#18
Atsushi Tsuruta, Kazuki Yamashita, Hiroaki Tanioka, Akihito Tsuji, Michio Inukai, Toshiki Yamakawa, Tomoki Yamatsuji, Masanori Yoshimitsu, Kazuhiro Toyota, Taketoshi Yamano, Takeshi Nagasaka, Masazumi Okajima
BACKGROUND: Six months of oxaliplatin-based chemotherapy is the standard adjuvant chemotherapy for completely resected stage III colorectal cancer (CRC). Also, patients with stage II CRC who are considered to be at high risk of disease recurrence often receive the same adjuvant chemotherapy treatment. We prospectively investigated the extent and degree of neuropathy suffered by stage III and high-risk stage II resectable CRC patients who underwent sequential approach involving 3 months of an oxaliplatin-based regimen followed by 3 months of capecitabine...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27910755/comparison-of-the-composition-and-antioxidant-activities-of-phenolics-from-the-fruiting-bodies-of-cultivated-asian-culinary-medicinal-mushrooms
#19
Shaoling Lin, Lai Tsz Ching, Xinxin Ke, Peter Chi Keung Cheung
The composition profile and the antioxidant properties of phenolics in water extracts obtained from the fresh fruiting bodies of 4 common cultivated Asian edible mushrooms-Agrocybe aegerita, Pleurotus ostreatus, P. eryngii, and Pholiota nameko were compared. The water extract from A. aegerita (AaE) had the highest total phenolic content (TPC) at 54.18 ± 0.27 gallic acid equivalents (μmol/L)/mg extract (P < 0.05), as measured by the Folin-Ciocalteu method, and consisted of the largest number (including gallic acid, protocatechuic acid, chlorogenic acid, ferulic acid, and sinapic acid) and total amounts of phenolic acids identified by Fourier transform-ion cyclotron resonance mass spectrometry...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27899116/the-correlation-between-antimutagenic-activity-and-total-phenolic-content-of-extracts-of-31-plant-species-with-high-antioxidant-activity
#20
Tshepiso Jan Makhafola, Esameldin Elzein Elgorashi, Lyndy Joy McGaw, Luc Verschaeve, Jacobus Nicolaas Eloff
BACKGROUND: Antimutagenic activity of plant extracts is important in the discovery of new, effective cancer preventing agents. There is increasing evidence that cancer and other mutation-related diseases can be prevented by intake of DNA protective agents. The identification of antimutagenic agents present in plants presents an effective strategy to inhibit pathogenic processes resulting from exposure to mutagenic and/or carcinogenic substances present in the environment. There are no reports on the antimutagenic activities of the plant species investigated in this study...
November 29, 2016: BMC Complementary and Alternative Medicine
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