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Amino acid supplementation

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https://www.readbyqxmd.com/read/28330158/a-simple-and-efficient-agrobacterium-tumefaciens-mediated-plant-transformation-of-brassica-rapa-ssp-pekinensis
#1
Venkidasamy Baskar, Baniekal H Gangadhar, Se Won Park, Shivraj Hariram Nile
The present study aims to investigate the numerous factors influencing Agrobacterium tumefaciens-mediated genetic transformation of Chinese cabbage (Brassica rapa ssp. pekinensis). Factors affecting transformation efficiency, such as age of explants, Agrobacterium concentration, and effect of acetosyringone, pre-cultivation, infection and co-cultivation time of Agrobacterium were examined. The pre-cultured hypocotyls from young seedlings prior to exposure to Agrobacterium showed higher shoot regeneration. The plant transformation with the modest A...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330141/evaluation-of-biochemical-markers-during-somatic-embryogenesis-in-silybum-marianum-l
#2
Bilal Haider Abbasi, Huma Ali, Buhara Yücesan, Sabahat Saeed, Khalid Rehman, Mubarak Ali Khan
In present report effects of explants type, basal media and plant growth regulators (PGRs) were tested for induction of indirect somatic embryogenesis in medicinally important plant Silybum marianum L. Leaf, petiole and root explants were exploited in vitro on B5 (Gamborg), SH (Schenk and Hildebrandt) and MS (Murashige and Skoog) media for induction of embryogenic callus followed by somatic embryogenesis. Highest callus induction frequency (76 ± 4.8 %) was recorded when petiole explants of in vitro derived plantlets were cultured on B5 medium supplemented with 1...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28327659/the-immunosuppressant-mycophenolic-acid-alters-nucleotide-and-lipid-metabolism-in-an-intestinal-cell-model
#3
Svenja Heischmann, Monika Dzieciatkowska, Kirk Hansen, Dieter Leibfritz, Uwe Christians
The study objective was to elucidate the molecular mechanisms underlying the negative effects of mycophenolic acid (MPA) on human intestinal cells. Effects of MPA exposure and guanosine supplementation on nucleotide concentrations in LS180 cells were assessed using liquid chromatography-mass spectrometry. Proteomics analysis was carried out using stable isotope labeling by amino acids in cell culture combined with gel-based liquid chromatography-mass spectrometry and lipidome analysis using (1)H nuclear magnetic resonance spectroscopy...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28326295/role-of-the-cytokine-like-hormone-leptin-in-muscle-bone-crosstalk-with-aging
#4
REVIEW
Mark W Hamrick
The cytokine-like hormone leptin is a classic adipokine that is secreted by adipocytes, increases with weight gain, and decreases with weight loss. Additional studies have, however, shown that leptin is also produced by skeletal muscle, and leptin receptors are abundant in both skeletal muscle and bone-derived mesenchymal (stromal) stem cells. These findings suggest that leptin may play an important role in muscle-bone crosstalk. Leptin treatment in vitro increases the expression of myogenic genes in primary myoblasts, and leptin treatment in vivo increases the expression of microRNAs involved in myogenesis...
February 2017: Journal of Bone Metabolism
https://www.readbyqxmd.com/read/28326292/acne-located-on-the-trunk-whey-protein-supplementation-is-there-any-association
#5
Fatma Pelin Cengiz, Bengu Cevirgen Cemil, Nazan Emiroglu, Anil Gulsel Bahali, Nahide Onsun
Whey protein is a source of protein that was isolated from milk. Whey proteins are composed of higher levels of essential amino acids. The role of diet in acne etiology has been investigated for several years. It was established that milk and milk products can trigger acneiform lesions, and recent evidence supports the role of whey protein supplements in acne. Herein, we report 6 healthy male adolescent patients developing acne located only to the trunk after the consumption of whey protein supplements for faster bodybuilding...
2017: Health Promotion Perspectives
https://www.readbyqxmd.com/read/28323968/impaired-glycine-mia-in-type-2-diabetes-and-potential-mechanisms-contributing-to-glucose-homeostasis
#6
Richard Yan-Do, Patrick E MacDonald
The onset and/or progression of type 2 diabetes (T2D) can be prevented if intervention is early enough. As such, much effort has been placed on the search for indicators predictive of pre-diabetes and disease onset or progression. An increasing body of evidence suggests that changes in plasma glycine may be one such biomarker. Circulating glycine levels are consistently low in patients with T2D. Levels of this non-essential amino acid correlate negatively with obesity and insulin resistance. Plasma glycine correlates positively with glucose disposal, and rises with interventions such as exercise and bariatric surgery that improve glucose homeostasis...
March 15, 2017: Endocrinology
https://www.readbyqxmd.com/read/28316968/a-stepwise-pilot-study-of-bovine-colostrum-to-supplement-the-first-enteral-feeding-in-preterm-infants-precolos-study-protocol-and-initial-results
#7
Yanqi Li, Sandra M Juhl, Xuqiang Ye, René L Shen, Elisabeth Omolabake Iyore, Yiheng Dai, Per T Sangild, Gorm O Greisen
STUDY PROTOCOL: The optimal feeding for preterm infants during the first weeks is still debated, especially when mother's own milk is lacking or limited. Intact bovine colostrum (BC) contains high amounts of protein, growth factors, and immuno-regulatory components that may benefit protein intake and gut maturation. We designed a pilot study to investigate the feasibility and tolerability of BC as the first nutrition for preterm infants. The study was designed into three phases (A, B, and C) and recruited infants with birth weights of 1,000-1,800 g (China) or gestational ages (GAs) of 27 + 0 to 32 + 6 weeks (Denmark)...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28316011/changes-in-pro-inflammatory-markers-and-leucine-concentrations-in-response-to-nordic-walking-training-combined-with-vitamin-d-supplementation-in-elderly-women
#8
A Gmiat, J Mieszkowski, K Prusik, K Prusik, J Kortas, A Kochanowicz, A Radulska, M Lipiński, M Tomczyk, J Jaworska, J Antosiewicz, E Ziemann
Mechanisms underpinning age-related decreases in muscle strength and muscle mass relate to chronic inflammation. Physical activity induces an anti-inflammatory effect, but it is modulated by additional factors. We hypothesized that vitamin D, which has also anti-inflammatory activity will modify adaptation to exercise and reduce inflammation in elderly women. Twenty-seven women aged 67 ± 8 years were included and divided into groups with baseline vitamin D concentration more than 20 ng mL(-1) (MVD) and less than 20 ng mL(-1) (LVD)...
March 18, 2017: Biogerontology
https://www.readbyqxmd.com/read/28314591/the-ubiquitin-binding-protein-tax1bp1-mediates-autophagasome-induction-and-the-metabolic-transition-of-activated-t-cells
#9
Michael I Whang, Rita M Tavares, Daniel I Benjamin, Michael G Kattah, Rommel Advincula, Daniel K Nomura, Jayanta Debnath, Barbara A Malynn, Averil Ma
During immune responses, naive T cells transition from small quiescent cells to rapidly cycling cells. We have found that T cells lacking TAX1BP1 exhibit delays in growth of cell size and cell cycling. TAX1BP1-deficient T cells exited G0 but stalled in S phase, due to both bioenergetic and biosynthetic defects. These defects were due to deficiencies in mTOR complex formation and activation. These mTOR defects in turn resulted from defective autophagy induction. TAX1BP1 binding of LC3 and GABARAP via its LC3-interacting region (LIR), but not its ubiquitin-binding domain, supported T cell proliferation...
March 21, 2017: Immunity
https://www.readbyqxmd.com/read/28296401/effects-of-low-protein-diets-supplemented-with-branched-chain-amino-acids-on-lipid-metabolism-in-white-adipose-tissue-of-piglets
#10
Yinghui Li, Hongkui Wei, Fengna Li, Yehui Duan, Qiuping Guo, Yulong Yin
This study was to evaluate the effect of branched-chain amino acids (BCAA) supplementation in low-protein diets on lipid metabolism in dorsal subcutaneous adipose (DSA), abdominal subcutaneous adipose (ASA), and perirenal adipose (PRA) tissues. A total of 24 piglets were allotted to 4 treatments, and each group fed the adequate protein (AP) diet, low-protein (LP) diet, LP diet supplemented with BCAA (LP + B), or LP diet supplemented with twice BCAA (LP + 2B). Serum concentrations of leptin in the BCAA supplemented treatments were higher (P < 0...
March 15, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28290284/uhplc-ms-2-based-approach-for-the-comprehensive-metabolite-profiling-of-bean-vicia-faba-l-by-products-a-promising-source-of-bioactive-constituents
#11
Ibrahim M Abu-Reidah, David Arráez-Román, Ismail Warad, Alberto Fernández-Gutiérrez, Antonio Segura-Carretero
Today, by-products generated from the agro-industrial practices are considered a key source of bioactive and functional components, that can be used for their nutritional and added value properties. New aspects concerning the use of these wastes as by-products in food production additives or supplements with high nutritional and medicinal value have gained substantial interest, due to their possession of economically high-value products. In this sense, the present study describes a thorough characterization of phytochemical compounds from hydro-methanolic extract of broad beans testa by using ultra-high performance liquid chromatography (UHPLC) hyphenated with quadrupole-time-of-flight tandem mass spectrometry (QTOF-MS)...
March 2017: Food Research International
https://www.readbyqxmd.com/read/28289215/selective-dietary-supplementation-in-early-postpartum-is-associated-with-high-resilience-against-depressed-mood
#12
Yekta Dowlati, Arun V Ravindran, Zindel V Segal, Donna E Stewart, Meir Steiner, Jeffrey H Meyer
Medical research is moving toward prevention strategies during prodromal states. Postpartum blues (PPB) is often a prodromal state for postpartum depression (PPD), with severe PPB strongly associated with an elevated risk for PPD. The most common complication of childbearing, PPD has a prevalence of 13%, but there are no widespread prevention strategies, and no nutraceutical interventions have been developed. To counter the effects of the 40% increase in monoamine oxidase A (MAO-A) levels that occurs during PPB, a dietary supplement kit consisting of monoamine precursor amino acids and dietary antioxidants was created...
March 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28288142/serine-hydroxymethyl-transferase-1-stimulates-pro-oncogenic-cytokine-expression-through-sialic-acid-to-promote-ovarian-cancer-tumor-growth-and-progression
#13
R Gupta, Q Yang, S K Dogra, N Wajapeyee
High-grade serous (HGS) ovarian cancer accounts for 90% of all ovarian cancer-related deaths. However, factors that drive HGS ovarian cancer tumor growth have not been fully elucidated. In particular, comprehensive analysis of the metabolic requirements of ovarian cancer tumor growth has not been performed. By analyzing The Cancer Genome Atlas mRNA expression data for HGS ovarian cancer patient samples, we observed that six enzymes of the folic acid metabolic pathway were overexpressed in HGS ovarian cancer samples compared with normal ovary samples...
March 13, 2017: Oncogene
https://www.readbyqxmd.com/read/28285648/branched-chain-amino-acids-alleviate-hepatic-steatosis-and-liver-injury-in-choline-deficient-high-fat-diet-induced-nash-mice
#14
Takashi Honda, Masatoshi Ishigami, Fangqiong Luo, Ma Lingyun, Yoji Ishizu, Teiji Kuzuya, Kazuhiko Hayashi, Isao Nakano, Tetsuya Ishikawa, Guo-Gang Feng, Yoshiaki Katano, Tomoya Kohama, Yasuyuki Kitaura, Yoshiharu Shimomura, Hidemi Goto, Yoshiki Hirooka
BACKGROUND: For successful treatment for nonalcoholic steatohepatitis (NASH), it may be important to treat the individual causative factors. At present, however, there is no established treatment for this disease. Branched-chain amino acids (BCAAs) have been used to treat patients with decompensated cirrhosis. AIM: In order to elucidate the mechanisms responsible for the effects of BCAAs on hepatic steatosis and disease progression, we investigated the effects of BCAA supplementation in mice fed a choline-deficient high-fat diet (CDHF), which induces NASH...
April 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28285641/effectiveness-of-essential-amino-acid-supplementation-in-stimulating-whole-body-net-protein-anabolism-is-comparable-between-copd-patients-and-healthy-older-adults
#15
Renate Jonker, Nicolaas Ep Deutz, Marcia L Erbland, Paula J Anderson, Mariëlle Pkj Engelen
BACKGROUND: The development of effective nutritional strategies in support of muscle growth for patients with chronic obstructive pulmonary disease (COPD) remains challenging. Dietary essential amino acids (EAAs) are the main driver of postprandial net protein anabolism. In agreement, EAA supplements in healthy older adults are more effective than supplements with the composition of complete proteins. In patients with COPD it is still unknown whether complete protein supplements can be substituted with only EAAs, and whether they are as effective as in healthy older adults...
April 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28279913/mitigation-of-ammonia-emissions-from-pig-production-using-reduced-dietary-crude-protein-with-amino-acid-supplementation
#16
Shule Liu, Ji-Qin Ni, John S Radcliffe, Caitlin E Vonderohe
To mitigate ammonia (NH3) emissions from pig production and understand dynamic emission profiles, reduced dietary crude protein (CP) with amino acid supplementation was studied with 720 pigs in a 12-room research building for 155days that covered from weaned to finishing stages. The pigs were divided into three 4-room groups and fed with 2.1-3.8% reduced CP (T1), 4.4-7.8% reduced CP (T2), and standard (control) diets, respectively. Compared with the control group, T1 and T2 decreased manure volumes and manure NH4(+)-N concentrations...
February 21, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28275552/dietary-practices-in-isovaleric-acidemia-a-european-survey
#17
A Pinto, A Daly, S Evans, M F Almeida, M Assoun, A Belanger-Quintana, S Bernabei, S Bollhalder, D Cassiman, H Champion, H Chan, J Dalmau, F de Boer, C de Laet, A de Meyer, A Desloovere, A Dianin, M Dixon, K Dokoupil, S Dubois, F Eyskens, A Faria, I Fasan, E Favre, F Feillet, A Fekete, G Gallo, C Gingell, J Gribben, K Kaalund-Hansen, N Horst, C Jankowski, R Janssen-Regelink, I Jones, C Jouault, G E Kahrs, I L Kok, A Kowalik, C Laguerre, S Le Verge, R Lilje, C Maddalon, D Mayr, U Meyer, A Micciche, M Robert, J C Rocha, H Rogozinski, C Rohde, K Ross, I Saruggia, A Schlune, K Singleton, E Sjoqvist, L H Stolen, A Terry, C Timmer, L Tomlinson, A Tooke, K Vande Kerckhove, E van Dam, T van den Hurk, L van der Ploeg, M van Driessche, M van Rijn, A van Teeffelen-Heithoff, A van Wegberg, C Vasconcelos, H Vestergaard, I Vitoria, D Webster, F J White, L White, H Zweers, A MacDonald
BACKGROUND: In Europe, dietary management of isovaleric acidemia (IVA) may vary widely. There is limited collective information about dietetic management. AIM: To describe European practice regarding the dietary management of IVA, prior to the availability of the E-IMD IVA guidelines (E-IMD 2014). METHODS: A cross-sectional questionnaire was sent to all European dietitians who were either members of the Society for the Study of Inborn Errors of Metabolism Dietitians Group (SSIEM-DG) or whom had responded to previous questionnaires on dietetic practice (n = 53)...
September 2017: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/28274259/development-of-the-us-english-version-of-the-phenylketonuria-quality-of-life-pku-qol-questionnaire
#18
Elaina Jurecki, Amy Cunningham, Vanessa Birardi, Grégory Gagol, Catherine Acquadro
BACKGROUND: Phenylketonuria (PKU) is a rare genetic disorder caused by a defect in the metabolism of phenylalanine (PHE) resulting in elevated blood and brain PHE levels, and leading to cognitive, emotional, and psychosocial problems. The phenylketonuria - quality of life (PKU-QOL) questionnaire was the first self-administered disease-specific instrument developed to assess the impact of PKU and its treatment on the health-related quality of life (HRQL) of patients and their caregivers...
March 9, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/28266085/branched-chain-amino-acid-ratios-in-low-protein-diets-regulate-the-free-amino-acid-profile-and-the-expression-of-hepatic-fatty-acid-metabolism-related-genes-in-growing-pigs
#19
Y H Duan, F N Li, C Y Wen, W L Wang, Q P Guo, Y H Li, Y L Yin
Liver metabolism is affected by nutrients. The aim of this study was to explore the effects of low-protein diets (17% crude protein, CP) supplemented with branched-chain amino acids (BCAAs), including leucine (Leu), isoleucine (Ile) and valine (Val), on hepatic amino acid profile and lipid metabolism in growing pigs. The ratio of Leu : Ile : Val in all groups was 1 : 0.51 : 0.63 (20% crude protein, CP), 1 : 1 : 1 (17% CP), 1 : 0.75 : 0.75 (17% CP), 1 : 0.51 : 0.63 (17% CP) and 1 : 0.25 : 0...
March 6, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28266022/an-artificial-tca-cycle-selects-for-efficient-%C3%AE-ketoglutarate-dependent-hydroxylase-catalysis-in-engineered-escherichia-coli
#20
Eleni Theodosiou, Marina Breisch, Mattijs K Julsing, Francesco Falcioni, Bruno Bühler, Andreas Schmid
Amino acid hydroxylases depend directly on the cellular TCA cycle via their cosubstrate a-ketoglutarate (α-KG) and are highly useful for the selective biocatalytic oxyfunctionalization of amino acids. This study evaluates TCA cycle engineering strategies to force and increase α-KG flux through proline-4-hydroxylase (P4H). The genes sucA (α-KG dehydrogenase E1 subunit) and sucC (succinyl-CoA synthetase β subunit) were alternately deleted together with aceA (isocitrate lyase) in proline degradation-deficient Escherichia coli strains (ΔputA) expressing the p4h gene...
March 7, 2017: Biotechnology and Bioengineering
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