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vitamin K deficiency

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https://www.readbyqxmd.com/read/28231019/pro-inflammatory-cytokines-impair-vitamin-d-induced-host-defense-in-cultured-airway-epithelial-cells
#1
Jasmijn A Schrumpf, Gimano D Amatngalim, Joris B Veldkamp, Renate M Verhoosel, Dennis K Ninaber, Soledad R Ordonez, Anne M van der Does, Henk P Haagsman, Pieter S Hiemstra
Vitamin D is a regulator of host defense against infections and induces expression of the antimicrobial peptide hCAP18/LL-37. Vitamin D deficiency is associated with chronic inflammatory lung diseases and respiratory infections. However, it is incompletely understood if and how (chronic) airway inflammation affects vitamin D metabolism and action. We hypothesized that long-term exposure of primary bronchial epithelial cells (PBEC) to pro-inflammatory cytokines alters their vitamin D metabolism, antibacterial activity and expression of hCAP18/LL-37...
February 23, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28225379/the-presentation-of-a-fussy-infant-with-bruising-late-onset-vitamin-k-deficiency-bleeding
#2
Katherine Wolpert, Matthew Szadkowski, Michael Miescier, Hilary A Hewes
Vitamin K plays an integral role in the clotting cascade. Deficiency, specifically in vulnerable neonates with insufficient stores, can lead to spontaneous bleeding and devastating effects. In this case, we report a young infant with late-onset vitamin K deficiency bleeding who did not receive vitamin K prophylaxis after birth. Initially presenting with bruising and fussiness, the patient was later found to have intracerebral hemorrhage with midline shift and uncal herniation. The infant was not a surgical candidate and died shortly thereafter...
February 21, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28225050/impact-of-baseline-vitamin-b12-status-on-the-effect-of-vitamin-b12-supplementation-on-neurologic-function-in-older-people-secondary-analysis-of-data-from-the-open-randomised-controlled-trial
#3
L M Miles, E Allen, R Clarke, K Mills, R Uauy, A D Dangour
BACKGROUND/OBJECTIVES: The available evidence from randomised controlled trials suggests that vitamin B12 supplementation does not improve neurologic function in older people with marginal but not deficient Vitamin B12 status. This secondary analysis used data from the Older People and Enhanced Neurological function (OPEN) randomised controlled trial to assess whether baseline vitamin B12 status or change in vitamin B12 status over 12 months altered the effectiveness of dietary vitamin B12 supplementation on neurologic function in asymptomatic older people with depleted vitamin B12 status at study entry...
February 22, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28219837/chronic-maternal-calcium-and-25-hydroxyvitamin-d-deficiency-in-wistar-rats-programs-abnormal-hepatic-gene-expression-leading-to-hepatic-steatosis-in-female-offspring
#4
Sona S Sharma, Nivedita M Jangale, Abhay M Harsulkar, Medha K Gokhale, Bimba N Joshi
Importance of calcium and vitamin D deficiency is well established in adult dyslipidemia. We hypothesized that maternal calcium and vitamin D deficiency could alter offspring's lipid metabolism. Our objective was to investigate the effect of maternal dietary calcium and vitamin D deficiency on lipid metabolism and liver function of the F1 generation offspring. intergenerational calcium-deficient (CaD) and vitamin D-deficient (VDD) models were developed by mating normal male rats with deficient females and continuing maternal-deficient diets through pregnancy and lactation...
February 8, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28217512/effect-of-oral-versus-intramuscular-vitamin-d-replacement-in-apparently-healthy-adults-with-vitamin-d-deficiency
#5
Nitin Gupta, Khalid J Farooqui, Chandar M Batra, Raman K Marwaha, Ambrish Mithal
CONTEXT: A number of controversies exist regarding appropriate treatment strategy for Vitamin D deficiency. AIMS: The aim of this study was to investigate the efficacy of equivalent doses of oral cholecalciferol (60,000 IU weekly for 5 weeks) versus intramuscular (IM) cholecalciferol (300,000 IU) in correcting Vitamin D deficiency in apparently healthy volunteers working in a hospital. SETTINGS AND DESIGN: Prospective randomized open-label single institution study...
January 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28216970/predictors-of-vitamin-d-deficiency-in-inflammatory-bowel-disease-and-health-a-mississippi-perspective
#6
Kumar Pallav, Daniel Riche, Warren L May, Patrick Sanchez, Nitin K Gupta
AIM: To identify the predictors of vitamin D deficiency in patients with and without inflammatory bowel disease (IBD). METHODS: Patients with ulcerative colitis (UC) or Crohn's disease (CD) related diagnostic codes who received medical care at University of Mississippi Medical Center between July 2012 and 2015 were identified. After thorough chart review, we identified patients with biopsy proven IBD who had also been tested for serum 25-hydroxyvitamin D [25(OH)D] concentration...
January 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28213380/complex-formation-with-pentraxin-2-regulates-factor-x-plasma-levels-and-macrophage-interactions
#7
Vincent Muczynski, Gabriel Aymé, Véronique Regnault, Marc Vasse, Delphine Borgel, Paulette Legendre, Amine Bazaa, Amélie Harel, Cécile Loubière, Peter J Lenting, Cécile V Denis, Olivier D Christophe
Recently, we have identified scavenger receptor-AI (SR-AI) as a receptor for coagulation factor X (FX), mediating the formation of a FX-reservoir at the macrophage-surface (Muczynski, Blood 2016 127:778). Here, we demonstrate that the FX/SR-AI-complex comprises a third protein, pentraxin-2. The presence of pentraxin-2 is essential to prevent internalization of FX by SR-AI, while the presence of FX is needed to interfere with internalization of pentraxin-2. Binding studies showed that FX, SR-AI and pentraxin-2 independently bind to each other (Kd,app: 0...
February 17, 2017: Blood
https://www.readbyqxmd.com/read/28199350/25-hydroxyvitamin-d3-and-1-25-dihydroxyvitamin-d3-exert-distinct-effects-on-human-skeletal-muscle-function-and-gene-expression
#8
Zaki K Hassan-Smith, Carl Jenkinson, David J Smith, Ivan Hernandez, Stuart A Morgan, Nicola J Crabtree, Neil J Gittoes, Brian G Keevil, Paul M Stewart, Martin Hewison
Age-associated decline in muscle function represents a significant public health burden. Vitamin D-deficiency is also prevalent in aging subjects, and has been linked to loss of muscle mass and strength (sarcopenia), but the precise role of specific vitamin D metabolites in determining muscle phenotype and function is still unclear. To address this we quantified serum concentrations of multiple vitamin D metabolites, and assessed the impact of these metabolites on body composition/muscle function parameters, and muscle biopsy gene expression in a retrospective study of a cohort of healthy volunteers...
2017: PloS One
https://www.readbyqxmd.com/read/28185838/vitamin-k-status-in-cystic-fibrosis-patients-with-liver-cirrhosis
#9
Patrycja Krzyżanowska, Sławomira Drzymała-Czyż, Andrzej Pogorzelski, Monika Duś-Żuchowska, Wojciech Skorupa, Lyudmyla Bober, Ewa Sapiejka, Beata Oralewska, Nataliya Rohovyk, Jerzy Moczko, Jan Nowak, Ewa Wenska-Chyży, Marta Rachel, Aleksandra Lisowska, Jarosław Walkowiak
The available data on the influence of liver cirrhosis on vitamin K status in CF patients is scarce. Therefore, the aims of the present study were to assess the prevalence of vitamin K deficiency in cirrhotic CF subjects and to determine whether it correlates with liver cirrhosis. The study group comprised of 27 CF patients with and 63 without liver cirrhosis. Vitamin K status was assessed using prothrombin induced by vitamin K absence (PIVKA-II) and the percentage of undercarboxylated osteocalcin (u-OC). PIVKA-II concentrations were higher in cirrhotic than in non-cirrhotic CF patients (median [1st-3rd quartile]: 3...
January 23, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28182049/tumor-induced-hypophosphatemia
#10
M Mulani, K Somani, S Bichu, V Billa
Significant hypophosphatemia is commonly due to Vitamin D deficiency. Any sporadic onset of hypophosphatemia in adults warrants workup to identify alternate causes. Hypophosphatemia may also be the only manifestation of an occult malignancy. A high index of clinical suspicion can help diagnose such conditions in early stages. Prompt treatment of the cause can correct this biochemical abnormality. We describe a case report of a woman presenting with severe hypophosphatemia and osteomalacia, leading eventually to the diagnosis of a phosphaturic mesenchymal tumor of the temporo-occipital bone...
January 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28181729/the-dietary-protein-paradox-and-threonine-15-n-depletion-pyridoxal-5-phosphate-enzyme-activity-as-a-mechanism-for-the-%C3%AE-15-n-trophic-level-effect
#11
B T Fuller, K J Petzke
RATIONALE: Nitrogen stable isotope ratios (δ(15) N values) are used to reconstruct dietary patterns, but the biochemical mechanism(s) responsible for the diet to tissue trophic level effect and its variability are not fully understood. Here δ(15) N amino acid (AA) values and physiological measurements (nitrogen intake, plasma albumin concentrations, liver reduced glutathione concentrations and leucine oxidation rates) are used to investigate increased dietary protein consumption and oxidative stress (vitamin E deficiency) in rat total plasma protein...
February 9, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28165551/thyroid-disorders-in-polycystic-ovary-syndrome
#12
K Kowalczyk, G Franik, D Kowalczyk, D Pluta, Ł Blukacz, P Madej
OBJECTIVE: Thyroid disorders, especially Hashimoto's thyroiditis (HT), are observed significantly more often in patients with polycystic ovary syndrome (PCOS) than in the general population - approximately 27% and 8%, respectively. This is extremely important in young women, because both disorders are connected with fertility problems. As HT and PCOS occur together, fertility problems may become a serious clinical issue in these patients. MATERIALS AND METHODS: A systematic literature review in PubMed of PCOS- and HT-related articles in English, published until December 2015 was conducted...
January 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28164683/diagnostic-error-of-a-patient-with-combined-inherited-factor-vii-and-factor-x-deficiency-due-to-accidental-ingestion-of-a-diphacinone-rodenticide
#13
Min Li, Yanhui Jin, Mingshan Wang, Yaosheng Xie, Hongxiang Ding
BACKGROUND: To explore the characteristics of laboratory examination and confirm the diagnosis of a patient with combined inherited FVII and FX deficiency after he ingested diphacinone rodenticide accidentally. METHODS: The coagulant parameter screening tests and coagulation factor activities were tested many times in the patient due to accidental ingestion of a diphacinone rodenticide. After the patient was treated for more than one year, gene analysis of correlated coagulation factors was analyzed in the patient and other family members by DNA direct sequencing...
November 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28161533/prevalence-determinants-and-clinical-correlates-of-vitamin-d-deficiency-in-patients-with-chronic-obstructive-pulmonary-disease-in-london-uk
#14
David A Jolliffe, Wai Yee James, Richard L Hooper, Neil C Barnes, Claire L Greiller, Kamrul Islam, Angshu Bhowmik, Peter M Timms, Raj K Rajakulasingam, Aklak B Choudhury, David E Simcock, Elina Hyppönen, Robert T Walton, Christopher J Corrigan, Christopher J Griffiths, Adrian R Martineau
Vitamin D deficiency is common in patients with chronic obstructive pulmonary disease (COPD), yet a comprehensive analysis of environmental and genetic determinants of serum 25-hydroxyvitamin D (25[OH]D) concentration in patients with this condition is lacking. We conducted a multi-centre cross-sectional study in 278 COPD patients aged 41-92 years in London, UK. Details of potential environmental determinants of vitamin D status and COPD symptom control and severity were collected by questionnaire, and blood samples were taken for analysis of serum 25(OH)D concentration and DNA extraction...
February 1, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28150927/-pregnancy-after-bariatric-surgery
#15
Franco Pepe, Francesco DE Luca, Mariagrazia Stracquadanio, Claudia Garraffo, Veronica C Santonocito, Agata Privitera
Pregnancy after bariatric surgery has some peculiarities related to obesity, type of surgery, amount of weight loss, time elapsed from the surgery and adherence to medical prescriptions. Pregnant woman is at risk of nutritional deficiencies and it is unclear whether there is an increased incidence of intestinal complications during pregnancy after bariatric surgery and whether this kind of complications are more frequent during cesarean section. The fetus is at high risk of prematurity and fetal growth restriction, but they seem not at increased risk of birth defects (DTN) except in individual cases of folic acid deficiency (DTN) or vitamin K defect (similar abnormalities in patients receiving oral anticoagulants)...
April 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28125048/ggcx-associated-phenotypes-an-overview-in-search-of-genotype-phenotype-correlations
#16
REVIEW
Eva Y G De Vilder, Jens Debacker, Olivier M Vanakker
Gamma-carboxylation, performed by gamma-glutamyl carboxylase (GGCX), is an enzymatic process essential for activating vitamin K-dependent proteins (VKDP) with important functions in various biological processes. Mutations in the encoding GGCX gene are associated with multiple phenotypes, amongst which vitamin K-dependent coagulation factor deficiency (VKCFD1) is best known. Other patients have skin, eye, heart or bone manifestations. As genotype-phenotype correlations were never described, literature was systematically reviewed in search of patients with at least one GGCX mutation with a phenotypic description, resulting in a case series of 47 patients...
January 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28100881/transporters-for-the-intestinal-absorption-of-cholesterol-vitamin-e-and-vitamin-k
#17
Yoshihide Yamanashi, Tappei Takada, Ryoya Kurauchi, Yusuke Tanaka, Toko Komine, Hiroshi Suzuki
Humans cannot synthesize fat-soluble vitamins such as vitamin E and vitamin K. For this reason, they must be obtained from the diet via intestinal absorption. As the deficiency or excess of these vitamins has been reported to cause several types of diseases and disorders in humans, the intestinal absorption of these nutrients must be properly regulated to ensure good health. However, the mechanism of their intestinal absorption remains poorly understood. Recent studies on cholesterol using genome-edited mice, genome-wide association approaches, gene mutation analyses, and the development of cholesterol absorption inhibitors have revealed that several membrane proteins play crucial roles in the intestinal absorption of cholesterol...
January 17, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28096639/association-between-serum-25-hydroxyvitamin-d-levels-and-bone-mineral-density-in-normal-postmenopausal-women
#18
Vasundhara Kamineni, Akkenapally Prasanna Latha, K Ramathulasi
AIM: This study was conducted with the objective of assessing serum 25-hydroxyvitamin D (25(OH)D) in postmenopausal women (PMW), to detect osteopenia or osteoporosis in PMW and to establish a correlation between serum 25(OH)D levels and bone mineral density (BMD). MATERIALS AND METHODS: A total of 100 healthy PMW were selected, and a prospective observational study was conducted to correlate the BMD with serum 25(OH)D levels. Their laboratory investigations along with serum 25(OH)D levels were done...
October 2016: Journal of Mid-life Health
https://www.readbyqxmd.com/read/28096611/recent-advances-in-role-of-chromium-and-its-antioxidant-combinations-in-poultry-nutrition-a-review
#19
REVIEW
Z Haq, R K Jain, N Khan, M Y Dar, S Ali, M Gupta, T K Varun
Poultry is reared in open side houses in most of the tropical countries, which results in huge temperature variation in shed causing stress resulting in increased demand of antioxidant supplementation. Since cooling of poultry houses or environment control is very expensive, thus methods focused on nutritional modifications appears to be the much logical approach. Stress increases mineral and vitamin mobilization from tissues and their excretion. Effect of some minerals and vitamin supplements such as chromium (Cr) and ascorbic acid to elevate the negative effects of environmental stress is well documented...
December 2016: Veterinary World
https://www.readbyqxmd.com/read/28079536/non-vitamin-k-antagonist-oral-anticoagulants-in-patients-with-severe-inherited-thrombophilia-a-series-of-33-patients
#20
Anetta Undas, Tadeusz Goralczyk
The aim of the study was to investigate whether treatment with non-vitamin K antagonist oral anticoagulants (NOACs) is effective and well tolerated in real-life patients following venous thromboembolism (VTE) associated with severe inherited thrombophilia. We evaluated 33 consecutive patients with severe inherited thrombophilia, defined as the presence of deficiencies in protein C, protein S, or anti-thrombin, homozygous factor V Leiden and prothrombin G20210A mutations, or combined defects. The patients were recruited from March 2010 to December 2015 and followed till July 2016...
January 12, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
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