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Fat soluble vitamins

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https://www.readbyqxmd.com/read/29149831/molecular-mechanisms-triggered-by-bile-acids-on-iintestinal-ca2-absorption
#1
Ana Marchionatti, Maria Rivoira, Valeria Rodriguez, Adriana Perez, Nori Tolosa de Talamoni
Bile acids (BAs) are synthesized in the liver and are among the main components of bile. For many years, it was thought that they have only a role as emulsifiers of fat in the small intestine facilitating the absorption of lipids and lipid soluble vitamins. Lately, they are also considered important signaling molecules, not only by regulating their own synthesis, but also having a role in several metabolic diseases. In this review we focus on the effect of deoxycholic, ursodeoxycholic and litocholic acids and their combination upon the intestinal Ca2+ absorption...
November 16, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29138634/the-synergistic-interplay-between-vitamins-d-and-k-for-bone-and-cardiovascular-health-a-narrative-review
#2
REVIEW
Adriana J van Ballegooijen, Stefan Pilz, Andreas Tomaschitz, Martin R Grübler, Nicolas Verheyen
Vitamins D and K are both fat-soluble vitamins and play a central role in calcium metabolism. Vitamin D promotes the production of vitamin K-dependent proteins, which require vitamin K for carboxylation in order to function properly. The purpose of this review is to summarize available evidence of the synergistic interplay between vitamins D and K on bone and cardiovascular health. Animal and human studies suggest that optimal concentrations of both vitamin D and vitamin K are beneficial for bone and cardiovascular health as supported by genetic, molecular, cellular, and human studies...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/29131337/effect-of-farming-system-on-donkey-milk-composition
#3
Emanuela Valle, Luisa Pozzo, Marzia Giribaldi, Domenico Bergero, Maria Silvia Gennero, Daniela Dezzutto, Amy McLean, Giorgio Borreani, Mauro Coppa, Laura Cavallarin
BACKGROUND: Donkey milk is considered a functional food for sensitive consumers, such as children allergic to cow milk. No information is available regarding the effect of farming systems on the quality of donkey milk. The study was aimed at evaluating the effect of the farming system and lactation stage on gross composition, fat-soluble vitamins and fatty acids (FA) in donkey milk. RESULTS: Individual milk samples were collected from lactating jennies (n=53) on the six of the largest farms located in North West Italy...
November 13, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29124698/role-of-vitamin-d-in-rheumatoid-arthritis
#4
Mattia Bellan, Pier Paolo Sainaghi, Mario Pirisi
Vitamin D is a fat soluble hormone, with a well described role in bone health and calcium/phosphate metabolism. Recent evidences have related vitamin D to other physiological functions and pathological conditions. Specifically, vitamin D has widely proven activities on immune system and evidences suggest that it may be implicated in the pathogenesis of rheumatoid arthritis (RA). The relationship between vitamin D and RA is complex, also because a deficitary vitamin D status, which is very common in RA patients, can contribute to the increased risk of osteoporosis typical of RA...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29118282/the-role-of-bile-acids-in-glucose-metabolism-and-their-relation-with-diabetes
#5
José Alberto González-Regueiro, Lidia Moreno-Castañeda, Misael Uribe, Norberto C Chávez-Tapia
Bile acids (BAs), the end products of cholesterol catabolism, are essential for the absorption of lipids and fat-soluble vitamins; but they have also emerged as novel signaling molecules that act as metabolic regulators. It has been well described that the enterohepatic circulation, a nuclear (FXR) and a cytoplasmic (TGR5/M-BAR) receptor aid in controlling hepatic bile acid synthesis. Modulating bile acid synthesis greatly impacts in metabolism, because these receptors also are implicated in glucose, lipid, and energy expenditure...
October 4, 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/29115467/coenzyme-q10-promotes-osteoblast-proliferation-and-differentiation-and-protects-against-ovariectomy-induced-osteoporosis
#6
Delu Zheng, Chenli Cui, Meng Yu, Xiang Li, Lu Wang, Xinyan Chen, Yichen Lin
Coenzyme Q10 (CoQ10) is a fat‑soluble vitamin‑like substance used for the treatment of a variety of disorders, including osteoporosis. The exact mechanism underlying CoQ10‑mediated protection against osteoporosis remains to be elucidated. The present study aimed to evaluate the effect of CoQ10 on osteoblastic cell proliferation and differentiation, and therapeutic effects on a rat model of osteoporosis. Following treatment with different concentrations of CoQ10, cell proliferation and differentiation of rat bone marrow stromal cells (BMSCs), and expression of osteoblastogenic markers, were measured...
October 26, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29106966/single-step-preparation-of-selected-biological-fluids-for-the-high-performance-liquid-chromatographic-analysis-of-fat-soluble-vitamins-and-antioxidants
#7
Giacomo Lazzarino, Salvatore Longo, Angela Maria Amorini, Valentina Di Pietro, Serafina D'Urso, Giuseppe Lazzarino, Antonio Belli, Barbara Tavazzi
Fat-soluble vitamins and antioxidants are of relevance in health and disease. Current methods to extract these compounds from biological fluids mainly need use of multi-steps and multi organic solvents. They are time-consuming and difficult to apply to treat simultaneously large sample number. We here describe a single-step, one solvent extraction of fat-soluble vitamins and antioxidants from biological fluids, and the chromatographic separation of all-trans-retinoic acid, 25-hydroxycholecalciferol, all-trans-retinol, astaxanthin, lutein, zeaxanthin, trans-β-apo-8'-carotenal, γ-tocopherol, β-cryptoxanthin, α-tocopherol, phylloquinone, lycopene, α-carotene, β-carotene and coenzyme Q10...
December 8, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29101656/impact-of-enteric-health-and-mucosal-permeability-on-skeletal-health-and-lameness-in-poultry
#8
L R Bielke, B M Hargis, J D Latorre
Intestinal barrier leakage and/or altered gut microbial composition has been shown to markedly impact both osteoblast and osteoclast activities, systemically through circulation of gut immune cells and cytokines and locally by causing inflammation of extraintestinal organs such as the liver and bone marrow. Mild cases of heightened intestinal inflammation can cause bone loss in male mice in the absence of any overt nutritional deficiencies or weight loss, which has also been shown in chickens that have been infected with Salmonella...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29080344/bile-acids-and-cancer-direct-and-environmental-dependent-effects
#9
Agostino Di Ciaula, David Q-H Wang, Emilio Molina-Molina, Raquel Lunardi Baccetto, Giuseppe Calamita, Vincenzo O Palmieri, Piero Portincasa
Bile acids (BAs) regulate the absorption of fat-soluble vitamins, cholesterol and lipids but have also a key role as singalling molecules and in the modulation of epithelial cell proliferation, gene expression and metabolism. These homeostatic pathways, when disrupted, are able to promote local inflammation, systemic metabolic disorders and, ultimately, cancer. The effect of hydrophobic BAs, in particular, can be linked with cancer in several digestive (mainly oesophagus, stomach, liver, pancreas, biliary tract, colon) and extra-digestive organs (i...
October 28, 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/29080336/bile-acid-physiology
#10
Agostino Di Ciaula, Gabriella Garruti, Raquel Lunardi Baccetto, Emilio Molina-Molina, Leonilde Bonfrate, David Q-H Wang, Piero Portincasa
The primary bile acids (BAs) are synthetized from colesterol in the liver, conjugated to glycine or taurine to increase their solubility, secreted into bile, concentrated in the gallbladder during fasting, and expelled in the intestine in response to dietary fat, as well as bio-transformed in the colon to the secondary BAs by the gut microbiota, reabsorbed in the ileum and colon back to the liver, and minimally lost in the feces. BAs in the intestine not only regulate the digestion and absorption of cholesterol, triglycerides, and fat-soluble vitamins, but also play a key role as signaling molecules in modulating epithelial cell proliferation, gene expression, and lipid and glucose metabolism by activating farnesoid X receptor (FXR) and G-protein-coupled bile acid receptor-1 (GPBAR-1, also known as TGR5) in the liver, intestine, muscle and brown adipose tissue...
October 28, 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/29077566/relations-between-oxidized-low-density-lipoproteins-and-fat-soluble-vitamin-concentrations-in-obese-children-preliminary-study
#11
Joanna Gajewska, Jadwiga Ambroszkiewicz, Halina Weker, Magdalena Chełchowska
INTRODUCTION: Although lipid peroxidation products are formed during normal cell metabolism, they appear mostly in pathological conditions via producing an excess of free radicals that can react with unsaturated fatty acids, in particular low-density lipoprotein (LDL). The aim of this study was to investigate the relations between oxidized LDL (oxLDL), the fat-soluble vitamin status and the anthropometric parameters in prepubertal obese children. MATERIAL AND METHODS: Thirty-two obese (SDS-BMI >2) and 25 non-obese children (SDS-BMI <-1+1>) were included in the study...
2017: Developmental Period Medicine
https://www.readbyqxmd.com/read/29028072/vitamin-d-in-human-reproduction-the-more-the-better-an-evidence-based-critical-appraisal
#12
A S Laganà, S G Vitale, H Ban Frangež, E Vrtačnik-Bokal, R D'Anna
OBJECTIVE: Vitamin D is a fat-soluble secosteroid hormone that regulates calcium, magnesium, and phosphate homeostasis and plays a pivotal role as antiproliferative and immunomodulatory mediator. Considering the different sources of synthesis and dietary intake as well as the pleiotropic actions in extremely diverse (micro)environments of the body, the supplementation of this Vitamin should be carefully evaluated taking into account the several pathways that it regulates. In the current brief review, we aimed to summarize the available evidence about the topic, in order to suggest the best evidence-based supplementation strategy for human reproduction, avoiding the unuseful (and sometimes hazardous) empiric supplementation...
September 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29025032/physical-activity-mediating-factors-and-risk-of-colon-cancer-insights-into-adiposity-and-circulating-biomarkers-from-the-epic-cohort
#13
Krasimira Aleksandrova, Mazda Jenab, Michael Leitzmann, Bas Bueno-de-Mesquita, Rudolf Kaaks, Antonia Trichopoulou, Christina Bamia, Pagona Lagiou, Sabina Rinaldi, Heinz Freisling, Marion Carayol, Tobias Pischon, Dagmar Drogan, Elisabete Weiderpass, Paula Jakszyn, Kim Overvad, Christina C Dahm, Anne Tjønneland, Marie-Christine Bouton-Ruault, Tilman Kühn, Eleni Peppa, Elissavet Valanou, Carlo La Vecchia, Domenico Palli, Salvatore Panico, Carlotta Sacerdote, Claudia Agnoli, Rosario Tumino, Anne May, Jonna van Vulpen, Kristin Benjaminsen Borch, Sunday Oluwafemi Oyeyemi, J Ramón Quirós, Catalina Bonet, María-José Sánchez, Miren Dorronsoro, Carmen Navarro, Aurelio Barricarte, Bethany van Guelpen, Patrik Wennberg, Timothy J Key, Kay-Tee Khaw, Nicholas Wareham, Nada Assi, Heather A Ward, Dagfinn Aune, Elio Riboli, Heiner Boeing
Background: There is convincing evidence that high physical activity lowers the risk of colon cancer; however, the underlying biological mechanisms remain largely unknown. We aimed to determine the extent to which body fatness and biomarkers of various biologically plausible pathways account for the association between physical activity and colon cancer. Methods: We conducted a nested case-control study in a cohort of 519 978 men and women aged 25 to 70 years followed from 1992 to 2003...
September 5, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29020155/measurement-of-vitamin-d-for-epidemiologic-and-clinical-research-shining-light-on-a-complex-decision
#14
Anne Marie Z Jukic, Andrew N Hoofnagle, Pamela L Lutsey
Vitamin D is a fat-soluble vitamin that is synthesized in the skin with exposure to sunlight, or ingested from dietary supplements or food. There has been a dramatic increase in research on vitamin D, linking it with health outcomes as varied as reproductive function, infection, cardiovascular disease, and cancer. Vitamin D has generated much excitement, in part because it is an ideal intervention: low levels may be common and can be remedied with widely-available supplements. Determination of vitamin D status is complex, and has advanced dramatically in the past five years...
August 17, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28987258/an-update-on-the-treatment-and-follow-up-of-patients-with-primary-biliary-cholangitis
#15
REVIEW
Blaire E Burman, Manan A Jhaveri, Kris V Kowdley
Primary biliary cholangitis (PBC) is an autoimmune liver disease characterized by chronic granulomatous lymphocytic cholangitis of the small bile ducts. PBC was a leading indication for liver transplant in the United States; with early diagnosis and treatment, the majority of patients with PBC have a normal life expectancy. Pathogenesis involves inflammatory damage of bile duct epithelium secondary to innate and adaptive immune responses, and toxicity from accumulated bile acids. Cholestasis and disease progression can lead to cirrhosis...
November 2017: Clinics in Liver Disease
https://www.readbyqxmd.com/read/28985688/diagnosis-and-management-of-pancreatic-exocrine-insufficiency-pei-in-primary-care-consensus-guidance-of-a-canadian-expert-panel
#16
P Durie, J-D Baillargeon, S Bouchard, F Donnellan, S Zepeda-Gomez, C Teshima
Pancreatic exocrine insufficiency (PEI) results in maldigestion due to inadequate activity of pancreatic enzymes in the small bowel. PEI can arise from a variety of medical conditions that reduce enzyme synthesis within the pancreatic parenchyma or from secondary factors that may occur despite optimal parenchymal function, such as pancreatic duct obstruction or reduced or poorly synchronized enzyme release. The most characteristic symptom of PEI is steatorrhea - voluminous, lipid-rich stools; other common signs and symptoms include unexplained weight loss and deficiencies of fat-soluble vitamins and other micronutrients...
October 6, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28956641/vitamin-caused-faulty-perinatal-hormonal-imprinting-and-its-consequences-in-adult-age
#17
G Csaba
Lipid-soluble vitamins (vitamins A, D, E, and K) are actually hormones (exohormones), as they can be directly bound by hormone receptors or are in connection with molecules, which influence hormone receptors. Vitamin D is a transition between endo- and exohormones and the possibility of similar situation in case of other lipid-soluble hormones is discussed. The perinatal exposition with these "vitamins" can cause faulty perinatal hormonal imprinting with similar consequences as the faulty imprinting by the synthetic endohormones, members of the same hormone family or industrial, communal, or medical endocrine disruptors...
September 1, 2017: Physiology International
https://www.readbyqxmd.com/read/28948941/vitamin-d-and-cardiovascular-risk-in-children
#18
REVIEW
Wen-Rui Xu, Hong-Fang Jin, Jun-Bao Du
OBJECTIVE: Vitamin D is a group of fat-soluble molecules that are structurally similar to steroids. Emerging data have led to the hypothesis that Vitamin D plays a role in the regulation of many physiological processes beyond calcium and phosphorus homeostasis. With this review, we aimed to summarize the changes in Vitamin D levels in children with cardiovascular diseases based on the literature. In addition, we also reviewed the potential mechanisms underlying cardiovascular diseases associated with Vitamin D deficiency or insufficiency...
September 22, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28946300/optimization-of-vitamins-a-and-d3-loading-in-re-assembled-casein-micelles-and-effect-of-loading-on-stability-of-vitamin-d3-during-storage
#19
Anisa Loewen, Benny Chan, Eunice C Y Li-Chan
The objectives of this study were to apply response surface methodology to optimize fat-soluble vitamin loading in re-assembled casein micelles, and to evaluate vitamin D stability of dry formulations during ambient or accelerated storage and in fortified fluid skim milk stored under refrigeration. Optimal loading of vitamin A (1.46-1.48mg/100mgcasein) was found at 9.7mM phosphate, 5.5mM citrate and 30.0mM calcium, while optimal loading of vitamin D (1.38-1.46mg/100mg casein) was found at 4.9mM phosphate, 4...
February 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28944098/the-role-of-vitamin-k-status-in-cardiovascular-health-evidence-from-observational-and-clinical-studies
#20
REVIEW
A J van Ballegooijen, J W Beulens
PURPOSE OF REVIEW: Vitamin K is a fat-soluble vitamin required for the activation of several vitamin K-dependent proteins to confer functioning. A growing body of evidence supports that vitamin K has beneficial effects on bone and cardiovascular health. This review summarizes key evidence on vitamin K status as measured by circulating measures and cardiovascular outcomes. RECENT FINDINGS: Overall, observational studies indicate that low vitamin K status as measured by high dephosphorylated uncarboxylated matrix gla protein concentrations plays a potential role in cardiovascular disease development, particularly in high-risk and chronic kidney disease populations...
2017: Current Nutrition Reports
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