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Hydrolysed collagen

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https://www.readbyqxmd.com/read/28914450/changes-in-composition-and-content-of-food-derived-peptide-in-human-blood-after-daily-ingestion-of-collagen-hydrolysate-for-4-weeks
#1
Yasutaka Shigemura, Asahi Suzuki, Mihoko Kurokawa, Yosio Sato, Kenji Sato
BACKGROUND: daily ingestion of collagen hydrolysate improves skin and joint conditions. It has been speculated that the beneficial effects are exerted by food-derived hydroxyproline (Hyp) peptides, which are detected in human blood after single ingestions. In the present study, to investigate the detailed relationship of the beneficial effects of Hyp-peptides, we examined the concentrations of Hyp-peptides in human blood before and after daily ingestion. RESULTS: Hyp-peptides increased to a maximum level at 1 h after ingestion and reverted to their initial levels within 24 h during daily ingestion...
September 15, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28906033/collagen-peptides-modulates-the-metabolism-of-extracellular-matrix-by-human-dermal-fibroblasts-derived-from-sun-protected-and-sun-exposed-body-sites
#2
Vivian Zague, Jonatas Bussador do Amaral, Paula Rezende Teixeira, Evandro Luis de Oliveira Niero, Camila Lauand, Glaucia Maria Machado-Santelli
Clinical data published in recent years has demonstrated positive effects of collagen hydrolysate (CH) on skin aging clinical signs. CH use as food supplement has a long history; however, few studies have addressed the underlying purpose of CH on the cellular and molecular biology of skin cells that could elucidate clinical improvement findings. Wide diversity of characteristics has been reported for dermal fibroblasts derived from different body sites and it is unknown whether collagen peptides could modulate differently cells from chronological aged and photoaged skin areas...
September 14, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28831668/fish-collagen-hydrolysates-modulate-cartilage-metabolism
#3
Kanchanit Boonmaleerat, Orawan Wanachewin, Thanyaluck Phitak, Peraphan Pothacharoen, Prachya Kongtawelert
Osteoarthritis is a degenerative joint disease in which interleukin-1β plays a major role in the inflammatory process. Administration of collagen hydrolysate was an optional treatment of osteoarthritis. Fish has become an interesting source of collagen hydrolysate because of religious reason and there is no risk from mad cow disease. However, the effects of different sizes of fish collagen hydrolysate on cartilage and chondrocyte metabolism have not been well studied yet. This study examined the effect of different sizes of fish collagen hydrolysate on cartilage metabolism...
August 22, 2017: Cell Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28808182/determination-of-serum-biomarkers-in-osteoarthritis-patients-a-previous-interventional-imaging-study-revisited
#4
Timothy McAlindon, Eckart Bartnik, Janina S Ried, Lenore Teichert, Matthias Herrmann, Klaus Flechsenhar
To evaluate in an interventional trial on knee osteoarthritis (OA) the level and change of two serum biomarkers and their correlation with imaging parameters. The previously reported interventional OA study (ClinicalTrials.gov: NCT00536302) identified a positive effect of collagen hydrolysate (CH) on cartilage morphology in patients with knee OA using delayed gadolinium enhanced magnetic resonance imaging (dGEMRIC). It was the objective in this research project to evaluate in an interventional clinical trial on knee OA the level and change of two serum biomarkers and their correlation with imaging parameters...
October 17, 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28678821/a-casein-hydrolysate-based-formulation-attenuates-obesity-and-associated-non-alcoholic-fatty-liver-disease-and-atherosclerosis-in-ldlr-leiden-mice
#5
Marieke H Schoemaker, Robert Kleemann, Martine C Morrison, Joanne Verheij, Kanita Salic, Eric A F van Tol, Teake Kooistra, Peter Y Wielinga
BACKGROUND: Obesity frequently associates with the development of non-alcoholic fatty liver disease (NAFLD) and atherosclerosis. Chronic inflammation in white adipose tissue (WAT) seems to be an important driver of these manifestations. OBJECTIVE: This study investigated a combination of an extensively hydrolyzed casein (eHC), docosahexaenoic acid (DHA), arachidonic acid (ARA), and Lactobacillus Rhamnosus GG (LGG) (together referred to as nutritional ingredients, NI) on the development of obesity, metabolic risk factors, WAT inflammation, NAFLD and atherosclerosis in high-fat diet-fed LDLr-/-...
2017: PloS One
https://www.readbyqxmd.com/read/28561587/protective-effects-of-functional-chicken-liver-hydrolysates-against-liver-fibrogenesis-antioxidation-anti-inflammation-and-antifibrosis
#6
Po-Ju Chen, Jung-Kai Tseng, Yi-Ling Lin, Yi-Hsieng Samuel Wu, Yi-Tse Hsiao, Jr-Wei Chen, Yi-Chen Chen
Via an assay using an Amino Acid Analyzer, pepsin-digested chicken liver hydrolysates (CLHs) contain taurine (365.57 ± 39.04 mg/100 g), carnosine (14.03 ± 1.98 mg/100 g), and anserine (151.58 ± 27.82 mg/100 g). This study aimed to evaluate whether CLHs could alleviate thioacetamide (TAA)-induced fibrosis. A dose of 100 mg TAA/kg BW significantly increased serum liver damage indices and liver cytokine contents. Cell infiltration and monocytes/macrophages in livers of TAA-treated rats were illustrated by the H&E staining and immunohistochemical analysis of cluster of differentiation 68 (CD68, ED1), respectively...
June 21, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28524092/marine-fish-proteins-and-peptides-for-cosmeceuticals-a-review
#7
REVIEW
Jayachandran Venkatesan, Sukumaran Anil, Se-Kwon Kim, Min Suk Shim
Marine fish provide a rich source of bioactive compounds such as proteins and peptides. The bioactive proteins and peptides derived from marine fish have gained enormous interest in nutraceutical, pharmaceutical, and cosmeceutical industries due to their broad spectrum of bioactivities, including antioxidant, antimicrobial, and anti-aging activities. Recently, the development of cosmeceuticals using marine fish-derived proteins and peptides obtained from chemical or enzymatical hydrolysis of fish processing by-products has increased rapidly owing to their activities in antioxidation and tissue regeneration...
May 18, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28475143/hydrolysates-of-fish-skin-collagen-an-opportunity-for-valorizing-fish-industry-byproducts
#8
María Blanco, José Antonio Vázquez, Ricardo I Pérez-Martín, Carmen G Sotelo
During fish processing operations, such as skinning and filleting, the removal of collagen-containing materials can account for up to 30% of the total fish byproducts. Collagen is the main structural protein in skin, representing up to 70% of dry weight depending on the species, age and season. It has a wide range of applications including cosmetic, pharmaceutical, food industry, and medical. In the present work, collagen was obtained by pepsin extraction from the skin of two species of teleost and two species of chondrychtyes with yields varying between 14...
May 5, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28418498/suppression-by-an-rar-%C3%AE-agonist-of-collagen-degradation-mediated-by-corneal-fibroblasts
#9
Kazuhiro Kimura, Hongyan Zhou, Tomoko Orita, Masaaki Kobayashi, Teruo Nishida, Koh-Hei Sonoda
Purpose: To examine the role of retinoic acid receptor (RAR) isoforms in interleukin-1β (IL-1β)-induced collagen degradation by corneal fibroblasts. Methods: Primary rabbit corneal fibroblasts embedded in a three-dimensional collagen gel were incubated with or without all-trans retinoic acid (ATRA), the RAR-α agonist Am580, the RAR-β agonist AC55649, or the RAR-γ agonist R667. Collagen degradation was determined by measurement of hydroxyproline produced in acid hydrolysates of culture supernatants...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28391691/both-pept1-and-glut-intestinal-transporters-are-utilized-by-a-novel-glycopeptide-pro-hyp-conh-glcn
#10
Mengmeng Feng, Mirko Betti
Pro-Hyp (PO) accounts for many beneficial biological effects of collagen hydrolysates for skin and bone health. The objective of this study was to conjugate PO with glucosamine (GlcN) to create a novel glycopeptide Pro-Hyp-CONH-GlcN (POGlcN) and then to investigate the potential involvement of multiple transepithelial transport pathways for this glycopeptide. Nuclear magnetic resonance results revealed the amide nature of this glycopeptide with α and β configurations derived from GlcN. This glycopeptide was very resistant to simulated gastrointestinal digestion...
April 26, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28390071/preparation-and-bioavailability-of-calcium-chelating-peptide-complex-from-tilapia-skin-hydrolysates
#11
Jun Chen, Xujian Qiu, Gengxin Hao, Meng Zhang, Wuyin Weng
BACKGROUND: With the continuous improvement in material life, the generation of fish by-products and the market demand for calcium supplements have been increasing in China. Therefore a calcium-chelating peptide complex (CPC) from tilapia skins was prepared and its effect on calcium (Ca)-deficient mice was investigated. RESULTS: The molecular weight distribution of CPC mainly ranged from 2000 to 180 Da, and its contents of complete amino acids and free amino acids were 85...
April 8, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28315441/physico-chemical-characteristics-and-fibril-forming-capacity-of-carp-swim-bladder-collagens-and-exploration-of-their-potential-bioactive-peptides-by-in-silico-approaches
#12
Gaurav Kumar Pal, P V Suresh
This study explores the sustainable valorization of carp swim bladder by-products. The high-value molecule collagens were successfully extracted from carp swim bladder with a yield of ∼60% (dry weight basis) and characterized by sodium dodecyl sulfate polyacrylamide gel electrophoresis, UV-spectrum and Fourier transform infrared spectroscopy. The extracted collagens showed the fibril-forming ability and high denaturation temperature (38-39°C). Furthermore, the extracted collagens subjected to preparing bioactive collagen hydrolysates with potential antioxidant activities...
August 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28274424/influence-of-hydrolysis-behaviour-and-microfluidisation-on-the-functionality-and-structural-properties-of-collagen-hydrolysates
#13
Yehui Zhang, Yousheng Zhang, Xueming Liu, Lihua Huang, Zhiyi Chen, Jingrong Cheng
The functionality and structural properties of pig skin hydrolysates with different degrees of hydrolysis (DH, 10% and 20%) and microfluidisation (120MPa), prepared by pepsin and Alcalase® have been investigated in this study. Extensive hydrolysis can significantly improve the absolute value of the zeta potential and surface hydrophobicity. The particle distribution of hydrolysates decreased with increasing DH. The numbers of free sulfhydryl (SH) and disulfide bonds (SS) were significantly increased with increasing DH (p<0...
July 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28273315/extracellular-collagen-promotes-interleukin-1%C3%AE-induced-urokinase-type-plasminogen-activator-production-by-human-corneal-fibroblasts
#14
Koji Sugioka, Aya Kodama-Takahashi, Koji Yoshida, Keiichi Aomatsu, Kiyotaka Okada, Teruo Nishida, Yoshikazu Shimomura
Purpose: Keratocytes maintain homeostasis of the corneal stroma through synthesis, secretion, and degradation of collagen fibrils of the extracellular matrix. Given that these cells are essentially embedded in a collagen matrix, keratocyte-collagen interactions may play a key role in regulation of the expression or activation of enzymes responsible for matrix degradation including urokinase-type plasminogen activator (uPA), plasmin, and matrix metalloproteinases (MMPs). We examined the effect of extracellular collagen on the production of uPA by corneal fibroblasts (activated keratocytes) stimulated with the proinflammatory cytokine interleukin-1β (IL-1β)...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28266663/the-effect-of-collagen-hydrolysates-from-silver-carp-hypophthalmichthys-molitrix-skin-on-uv-induced-photoaging-in-mice-molecular-weight-affects-skin-repair
#15
Hongdong Song, Mengfei Meng, Xiaofeng Cheng, Bo Li, Chengtao Wang
The use of collagen hydrolysates (CHs) as a nutraceutical agent in skin aging has gained increasing attention. Here, the effects of various doses and molecular weights of CH from silver carp skin on photoaging in mice were investigated. The ingestion of CH at 50, 100 and 200 mg per kg body weight led to a dose-dependent increase in the hydroxyproline, hyaluronic acid and moisture contents of the skin, but it had no significant effect on the mice body weight, or on the spleen or thymus index. Furthermore, ingesting CH with lower (LMCH, 200-1000 Da, 65%) and higher molecular weight (HMCH, >1000 Da, 72%) significantly increased the skin components and improved the antioxidative enzyme activities in both serum and skin (p < 0...
April 19, 2017: Food & Function
https://www.readbyqxmd.com/read/28244315/oral-ingestion-of-collagen-hydrolysate-leads-to-the-transportation-of-highly-concentrated-gly-pro-hyp-and-its-hydrolyzed-form-of-pro-hyp-into-the-bloodstream-and-skin
#16
Misato Yazaki, Yukihiko Ito, Masayoshi Yamada, Spyros Goulas, Sachiyuki Teramoto, Masa-Aki Nakaya, Shigeo Ohno, Kohji Yamaguchi
Collagen hydrolysate is a well-known dietary supplement for the treatment of skin aging; however, its mode of action remains unknown. Previous studies have shown that the oral ingestion of collagen hydrolysate leads to elevated levels of collagen-derived peptides in the blood, but whether these peptides reach the skin remains unclear. Here, we analyzed the plasma concentration of collagen-derived peptides after ingestion of high tripeptide containing collagen hydrolysate in humans. We identified 17 types of collagen-derived peptides transiently, with a particular enrichment in Gly-Pro-Hyp...
March 22, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28242948/optimization-of-process-parameters-for-the-production-of-collagen-peptides-from-fish-skin-epinephelus-malabaricus-using-response-surface-methodology-and-its-characterization
#17
G S Hema, C G Joshy, K Shyni, Niladri S Chatterjee, George Ninan, Suseela Mathew
The study optimized the hydrolysis conditions for the production of fish collagen peptides from skin of Malabar grouper (Epinephelus malabaricus) using response surface methodology. The hydrolysis was done with enzymes pepsin, papain and protease from bovine pancreas. Effects of process parameters viz: pH, temperature, enzyme substrate ratio and hydrolysis time of the three different enzymes on degree of hydrolysis were investigated. The optimum response of degree of hydrolysis was estimated to be 10, 20 and 28% respectively for pepsin, papain and protease...
February 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28159262/transepithelial-transport-efficiency-of-bovine-collagen-hydrolysates-in-a-human-caco-2-cell-line-model
#18
Mengmeng Feng, Mirko Betti
Collagen was extracted from raw bovine hide and hydrolyzed by one of three enzymes - Alcalase, Flavourzyme, or trypsin - or by using a combination of two or three of these enzymes. The Alcalase-containing enzymatic hydrolysis treatments generated a greater proportion of hydrolysates with molecular weight (MW) <2kDa (79.8-82.7%). Flavourzyme-containing hydrolysis treatments exhibited the greatest proportion of free amino acids (686-740nmol/mg). The hydrolysates were then subjected to a simulated gastrointestinal (GI) digestion, and transport studies were conducted using a Caco-2 cell model...
June 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28117676/characterization-of-collagen-peptides-in-elaphuri-davidiani-cornu-aqueous-extract-with-proliferative-activity-on-osteoblasts-using-nano-liquid-chromatography-in-tandem-with-orbitrap-mass-spectrometry
#19
Yanjuan Zhai, Zhenhua Zhu, Yue Zhu, Dawei Qian, Rui Liu, Yunru Peng, Yuhua Ding, Zhen Ouyang, Jin-Ao Duan
First documented in Shennong Bencao Jing (about 200 B.C.-200 A.D.), Elaphuri Davidiani Cornu (EDC) has been recorded for its effects in strengthening bones and balancing other aspects of overall health for approximately 2000 years. In the present study, our aim was to investigate which are the components of the active EDC fraction by a peptidomic strategy. We explored the extent to which EDC increases the proliferation of osteoblasts by measuring the elevations in osteonectin and type I collagen mRNA levels and characterized it using nano-flow liquid chromatography in tandem with orbitrap mass spectrometry...
January 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28117674/metabolic-response-of-human-osteoarthritic-cartilage-to-biochemically-characterized-collagen-hydrolysates
#20
Saskia Schadow, Viktor S Simons, Guenter Lochnit, Jens Kordelle, Zuzana Gazova, Hans-Christian Siebert, Juergen Steinmeyer
The most frequent disease of the locomotor system is osteoarthritis (OA), which, as a chronic joint disease, might benefit more from nutrition than acute illnesses. Collagen hydrolysates (CHs) are peptidic mixtures that are often used as nutraceuticals for OA. Three CHs were characterized biochemically and pharmacologically. Our biophysical (MALDI-TOF-MS, NMR, AFM) and fluorescence assays revealed marked differences between CHs of fish (Peptan(®) F 5000, Peptan(®) F 2000) and porcine (Mobiforte(®)) origin with respect to the total number of peptides and common peptides between them...
January 20, 2017: International Journal of Molecular Sciences
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