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Lactoferrin

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https://www.readbyqxmd.com/read/28442839/the-place-of-calprotectin-lactoferrin-and-high-mobility-group-box-1-protein-on-diagnosis-of-acute-appendicitis-with-children
#1
Sevgi Buyukbese Sarsu, Ayse Binnur Erbagci, Hasan Ulusal, Suleyman Cuneyt Karakus, Özlem Gümüstekin Bulbul
The purpose of this study is to investigate the role of serum calprotectin (CP), lactoferrin (LF), and high-mobility group protein B1 (HMGB-1) levels and fecal CP and LF levels in differential diagnosis of acute uncomplicated appendicitis from other causes of abdominal pain and further from complicated appendicitis. Totally, 120 children were included grouped into 4 as: healthy controls, patients with right lower quadrant pain with other than surgical causes, patients with uncomplicated appendicitis, and patients with complicated appendicitis...
April 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28438978/peptoanaerobacter-stomatis-primes-human-neutrophils-and-induces-granule-exocytosis
#2
E Jimenez Flores, S Tian, M Sizova, S S Epstein, R J Lamont, S M Uriarte
Peptoanaerobacter stomatis is a newly appreciated taxon associated with periodontal diseases; however, little is known about the organism's pathogenic potential or its interaction with the host immune response. Neutrophils are the most abundant innate immune cell present in the gingival tissue and function to constrain the oral microbial challenge. However, some periodontal pathogens have developed strategies to evade phagocytosis and killing by neutrophils. Therefore, to begin to understand the role of P. stomatis in periodontitis, we studied its interactions with human neutrophils...
April 24, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28437574/dietary-lactalbumin-and-lactoferrin-interact-with-inulin-to-modulate-energy-balance-in-obese-rats
#3
Arashdeep Singh, Rizaldy C Zapata, Adel Pezeshki, Prasanth K Chelikani
OBJECTIVE: To determine whether diets enriched with the whey protein components lactalbumin and lactoferrin interact additively with inulin to improve energy balance by decreasing food intake and body weight (BW). METHODS: In four experiments, diet-induced obese rats were randomized to diets containing either lactalbumin or lactoferrin at low (20% kcal) or high (40% kcal) doses, and inulin at low (7.5% w/w) or high (15% w/w) doses, alone or in combination. Energy intake (EI), energy expenditure (EE), respiratory quotient (RQ), BW, body composition, plasma insulin, and leptin concentrations were measured...
April 24, 2017: Obesity
https://www.readbyqxmd.com/read/28436180/control-mechanisms-for-producing-antimicrobial-factors-in-ruminant-mammary-gland
#4
REVIEW
Naoki Isobe
Mastitis, a symptom of inflammation in mammary tissue by infection with various kinds of bacteria, causes huge economic losses in the milk industry. One of the popular methods for treatment of mastitis is antibiotics, although this prohibits milk shipping and sometimes causes resistant microbes. Therefore, a new strategy to treat mastitis without antibiotics is eagerly required around the world. Antimicrobial factors belong to innate immunity and can start their function extremely early after bacterial stimulation...
April 24, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28435263/neuroprotection-against-apoptosis-of-sk-n-mc-cells-using-rmp-7-and-lactoferrin-grafted-liposomes-carrying-quercetin
#5
Yung-Chih Kuo, Chien-Wei Tsao
A drug delivery system of quercetin (QU)-encapsulated liposomes (LS) grafted with RMP-7, a bradykinin analog, and lactoferrin (Lf) was developed to permeate the blood-brain barrier (BBB) and rescue degenerated neurons, acting as an Alzheimer's disease (AD) pharmacotherapy. This colloidal formulation of QU-encapsulated LS grafted with RMP-7 and Lf (RMP-7-Lf-QU-LS) was used to traverse human brain microvascular endothelial cells (HBMECs) regulated by human astrocytes (HAs) and to treat SK-N-MC cells after an insult with cytotoxic β-amyloid (Aβ) fibrils...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28434191/the-effect-of-parotid-gland-sparing-imrt-on-salivary-composition-flow-rate-and-xerostomia-measures
#6
Thomas M Richards, Tara Hurley, Lorna Grove, Kevin J Harrington, Guy H Carpenter, Gordon B Proctor, Christopher M Nutting
OBJECTIVES: To describe parotid gland (PG) saliva organic and inorganic composition and flow rate changes, after curative intensity-modulated radiotherapy (IMRT) for head and neck cancer (HNC) and analyse the relationship between PG saliva analytes and xerostomia measures. METHODS AND MATERIALS: Twenty-six patients recruited to five prospective phase 2 or 3 trials which assessed toxicity and efficacy of IMRT by HNC subsite, provided longitudinal PG salivas. Salivary flow rate, subjective and objective xerostomia measures were prospectively collected and salivas tested for inorganic and organic analytes...
April 23, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28426715/acute-hypoxia-influences-collagen-and-matrix-metalloproteinase-expression-by-human-keratoconus-cells-in-vitro
#7
Tina B McKay, Jesper Hjortdal, Shrestha Priyadarsini, Dimitrios Karamichos
Keratoconus (KC) is a progressive corneal ectasia linked to thinning of the central cornea. Hard contact lenses, rigid gas permeable lenses, and scleral lenses are the primary treatment modalities for early to mid- stages of KC to correct refractive error and astigmatism that develops as a result of an irregular corneal structure. These treatments are associated with significant drawbacks, including reduced availability of the tear film and oxygen to the corneal epithelium and stroma. However, it remains unknown whether hypoxia affects corneal integrity in the KC pathobiology...
2017: PloS One
https://www.readbyqxmd.com/read/28425960/studying-lactoferrin-n-glycosylation
#8
REVIEW
Sercan Karav, J Bruce German, Camille Rouquié, Annabelle Le Parc, Daniela Barile
Lactoferrin is a multifunctional glycoprotein found in the milk of most mammals. In addition to its well-known role of binding iron, lactoferrin carries many important biological functions, including the promotion of cell proliferation and differentiation, and as an anti-bacterial, anti-viral, and anti-parasitic protein. These functions differ among lactoferrin homologs in mammals. Although considerable attention has been given to the many functions of lactoferrin, its primary nutritional contribution is presumed to be related to its iron-binding characteristics, whereas the role of glycosylation has been neglected...
April 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28413783/two-single-nucleotide-polymorphisms-sites-in-%C3%AE-1-at-gene-and-their-association-with-somatic-cell-score-in-chinese-holstein-cows
#9
Xiao-Fei Guo, Wen-Ping Hu, Xian-Zheng Lang, Qiu-Ling Li, Xiang-Yu Wang, Ran Di, Qiu-Yue Liu, Xiao-Lin Liu, Yong-Fu An, Ming-Xing Chu
BACKGROUND: Alpha 1-antitrypsin (α1-AT) may affect the susceptibility of mastitis in dairy cattle for its possible role in the protection of lactoferrin from proteolytic degradation in the mammary. Milk somatic cell score (SCS) is a logarithmic transformation of the milk somatic cell count widely used as an index to evaluate mastitis. To study the relationships of α1-AT gene and SCS in Chinese Holstein cows, methods of PCR-SSCP, DNA sequencing, PCR-RFLP, and CRS-PCR technologies were used to detect single nucleotide polymorphisms sites in α1-AT gene...
December 2017: Journal of Biological Research
https://www.readbyqxmd.com/read/28407956/kinetic-stability-and-membrane-structure-of-liposomes-during-in-vitro-infant-intestinal-digestion-effect-of-cholesterol-and-lactoferrin
#10
Weilin Liu, Fuqiang Wei, Aiqian Ye, Mengmeng Tian, Jianzhong Han
The effects of cholesterol and lactoferrin on the kinetic stability and membrane structural integrity of negatively charged liposomes under in vitro infant intestinal digestion conditions were elucidated using dynamic light scattering, pH-stat titration, Fourier transform infrared spectroscopy, and pyrene steady state fluorescence probes. The liposomes had a smaller particle diameter, a wider size distribution, and a greater negative charge after digestion. The incorporation of cholesterol into the phospholipid bilayers resulted in a more ordered conformation in the aliphatic tail region and reduced micropolarity, indicating that cholesterol can improve the structural stability of liposomal membranes against intestinal environmental stress...
September 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28397705/the-use-of-selected-neutrophil-protein-plasma-concentrations-in-the-diagnosis-of-crohn-s-disease-and-ulcerative-colitis-a-preliminary-report
#11
Dorota Pawlica-Gosiewska, Bogdan Solnica, Katarzyna Gawlik, Dorota Cibor, Tomasz Mach, Danuta Fedak, Danuta Owczarek
BACKGROUND: Difficulties in diagnosis of inflammatory bowel disease (IBD) motivate the search for new diagnostic tools, including laboratory tests. The aim of this study was to evaluate concentrations of the neutrophil (NEU) proteins leukocyte elastase (HLE-α1AT), lactoferrin and calprotectin as potential biomarkers used in the diagnosis and assessment of clinical activity of Crohn's disease (CD) and ulcerative colitis (UC). MATERIAL/METHODS: The study included 27 patients with CD, 33 patients with UC and 20 healthy controls...
April 6, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28396748/innate-immune-responses-induced-by-lipopolysaccharide-and-lipoteichoic-acid-in-primary-goat-mammary-epithelial-cells
#12
Omar Bulgari, Xianwen Dong, Alfred L Roca, Anna M Caroli, Juan J Loor
BACKGROUND: Innate immune responses induced by in vitro stimulation of primary mammary epithelial cells (MEC) using Gram-negative lipopolysaccharide (LPS) and Gram-positive lipoteichoic acid (LTA) bacterial cell wall components are well- characterized in bovine species. The objective of the current study was to characterize the downstream regulation of the inflammatory response induced by Toll-like receptors in primary goat MEC (pgMEC). We performed quantitative real-time RT-PCR (qPCR) to measure mRNA levels of 9 genes involved in transcriptional regulation or antibacterial activity: Toll-like receptor 2 (TLR2), Toll-like receptor 4 (TLR4), prostaglandin-endoperoxide synthase 2 (PTGS2), interferon induced protein with tetratricopeptide repeats 3 (IFIT3), interferon regulatory factor 3 (IRF3), myeloid differentiation primary response 88 (MYD88), nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (NFKB1), Toll interacting protein (TOLLIP), and lactoferrin (LTF)...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28395167/the-association-of-enamelin-lactoferrin-and-tumour-necrosis-factor-alpha-gene-polymorphisms-with-high-caries-susceptibility-in-chinese-children-under-4-years-old
#13
Mengchen Wang, Man Qin, Bin Xia
OBJECTIVE: The aim of this study was to assess the role of ENAM rs3796703, LTF rs1126478, and TNF-α rs1800629 in high caries susceptibility. DESIGN: The present case-control study included 1005 unrelated children under 4 years old: 505 with severe caries (dmft index ≥4) and 500 who were caries-free (dmft index=0 and without white-spot lesions). Questionnaires were obtained from parents and gardians about the children's diet and oral behavioural habits. All the children received dental examinations and oral swabbing for human genomic DNA collection...
March 31, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28394635/prevention-of-fungal-spoilage-in-food-products-using-natural-compounds-a-review
#14
Susana Ribes, Ana Fuentes, Pau Talens, Jose Manuel Barat
The kingdom Fungi is the most important group of microorganism contaminating food commodities, and chemical additives are commonly used in the food industry to prevent fungal spoilage. However, the increasing consumer concern about synthetic additives has led to their substitution by natural compounds in foods. The current review provides an overview of using natural agents isolated from different sources (plants, animals and microorganisms) as promising antifungal compounds, including information about their mechanism of action and their use in foods to preserve and prolong shelf life...
April 10, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28391848/poly-2-methyl-2-oxazoline-coating-by-thermally-induced-immobilization-for-determination-of-bovine-lactoferrin-in-infant-formula-with-capillary-electrophoresis
#15
Ke Mao, Haiqin Du, Longchao Bai, Yalin Zhang, Haikun Zhu, Yanmei Wang
In this work, a one-step coating procedure by a simple annealing protocol of poly (2-methyl-2-oxazoline)-random-glycidyl methacrylate (PMOXA-r-GMA) copolymer was used to yield covalent and cross-linked PMOXA-based antifouling coating on a fused-silica capillary inner surface, which was used to determine the bovine lactoferrin (Lf) in infant formula by capillary electrophoresis with ultraviolet (CE-UV) detection. The X-ray photoelectron spectroscopy (XPS) confirmed that PMOXA-r-GMA could be bonded onto fused-silica capillary inner wall and stable electroosmotic flow (EOF) was obtained in the PMOXA-r-GMA coated capillary at pH 2...
June 1, 2017: Talanta
https://www.readbyqxmd.com/read/28389403/how-the-presence-of-a-small-molecule-affects-the-complex-coacervation-between-lactoferrin-and-%C3%AE-lactoglobulin
#16
Guilherme M Tavares, Thomas Croguennec, Pascaline Hamon, Antônio F Carvalho, Saïd Bouhallab
Heteroprotein complex coacervation corresponds to the formation of two liquid phases in equilibrium induced by the interaction of two oppositely charged proteins. The more concentrated phase known as coacervate phase, has attracted interest from several fields of science due to its potential applications for example for encapsulation and delivery of bioactives. Prior such application, it is necessary to understand how the presence of small ligands affects the complex coacervation. In this work, we report on the interaction of small ligand with individual proteins β-lactoglobulin (β-LG) and lactoferrin (LF) and consequences on their complex coacervation...
April 4, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28380600/diet-induced-modifications-to-milk-composition-have-long-term-effects-on-offspring-growth-in-rabbits
#17
C Hue-Beauvais, G Miranda, E Aujean, F Jaffrezic, E Devinoy, P Martin, M Charlier
It has been clearly demonstrated that the maternal nutritional status during pregnancy and lactation has long-term effects on offspring health. In mammals, milk represents the first maternal support provided to the newborns so that its composition may play a major role in long-term programming. We therefore assessed the effects of maternal high-fat/high-sugar obesogenic (OD) or control (CD) diets on offspring growth and adiposity in the rabbit. Between 7 and 20 wk of age, the BW gain of OD milk-fed rabbits was higher than that of CD milk-fed rabbits ( < 0...
February 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28374880/physical-chemical-stability-and-in-vitro-digestibility-of-hybrid-nanoparticles-based-on-the-layer-by-layer-assembly-of-lactoferrin-and-bsa-on-liposomes
#18
Weilin Liu, Youyu Kong, Piaohan Tu, Junmeng Lu, Chengmei Liu, Wei Liu, Jianzhong Han, Jianhua Liu
Hybrid nanoparticles were fabricated by the electrostatic deposition of positive bovine serum albumin (BSA) and negative lactoferrin (LF) onto the surface of anionic nanoliposomes (NLs). The resulting particles had a cumulative size of 156.27 ± 11.0 nm and decreased in negative charge. Transmission electron microscopy (TEM) revealed that the hybrid particles formed a smooth and spherical polyelectrolyte complex after globular protein deposition. Observations in size distribution and surface charge after heat treatment, pH alteration and long-term storage found that the particles coated with layers of polyelectrolytes, BSA and LF, had obviously better stability than the bare liposomes...
April 19, 2017: Food & Function
https://www.readbyqxmd.com/read/28369875/a-randomized-double-blind-placebo-controlled-trial-to-determine-the-efficacy-and-safety-of-lactoferrin-with-vitamin-e-and-zinc-as-an-oral-therapy-for-mild-to-moderate-acne-vulgaris
#19
Heidi Chan, Gertrude Chan, Joyce Santos, Kennie Dee, Juliene Kimberly Co
Lactoferrin is an iron-binding milk-derived protein that has shown antibacterial and anti-inflammatory effects in vitro and in vivo. The objective of this study was to determine the efficacy and safety of lactoferrin, combined with vitamin E and zinc, for mild to moderate acne vulgaris. In this randomized, double-blind, placebo-controlled trial, 168 subjects aged 13-40 years old were randomly assigned to take either a capsule formulation containing lactoferrin with vitamin E and zinc or placebo twice a day for 3 months...
March 30, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28368537/tissue-specific-ablation-of-the-lif-receptor-in-the-murine-uterine-epithelium-results-in-implantation-failure
#20
JrGang Cheng, Gracy Rosario, Tatiana V Cohen, Jianbo Hu, Colin L Stewart
The cytokine Leukemia inhibitory factor (LIF) is essential for rendering the uterus receptive for blastocyst implantation. In mice LIF receptor expression (LIFR) is largely restricted to the uterine luminal epithelium (LE). LIF, secreted from the endometrial glands (GE) binds to the LIFR, activating the Jak-Stat3 signaling pathway in the LE. JAK-STAT activation converts the LE to a receptive state so that juxtaposed blastocysts begin to implant. To specifically delete the LIFR in the LE we derived a line of mice in which Cre recombinase was inserted into the endogenous Lactoferrin gene (Ltf-Cre)...
March 22, 2017: Endocrinology
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