Aquamin and Prevention of Colon Cancer (part-IV)
Ontology highlight
ABSTRACT:
ORGANISM(S): Human Homo Sapiens
TISSUE(S): Feces
DISEASE(S): Cancer
SUBMITTER: 
Maureen Kachman
PROVIDER: ST001228 | MetabolomicsWorkbench | Wed Jul 24 00:00:00 BST 2019
REPOSITORIES: MetabolomicsWorkbench
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Project description:We propose to evaluate microbial and metabolic profiles in baseline and endpoint colonic mucosal, fecal, and serum samples from human patients at risk for CRC and enrolled in a 90-day phase I clinical trial. Patients will receive daily supplementation with calcium alone, a calcium-rich multimineral (Aquamin?), or placebo (maltodextrin) (n=10 per group). We hypothesize that dietary supplementation will correlate with CRC-protective metabolic profiles and that multimineral supplementation will generate more favorable profiles than calcium supplementation alone.
2019-07-23 | ST001226 | MetabolomicsWorkbench
Project description:We propose to evaluate microbial and metabolic profiles in baseline and endpoint colonic mucosal, fecal, and serum samples from human patients at risk for CRC and enrolled in a 90-day phase I clinical trial. Patients will receive daily supplementation with calcium alone, a calcium-rich multimineral (Aquamin?), or placebo (maltodextrin) (n=10 per group). We hypothesize that dietary supplementation will correlate with CRC-protective metabolic profiles and that multimineral supplementation will generate more favorable profiles than calcium supplementation alone.
2019-07-24 | ST001227 | MetabolomicsWorkbench
Project description:We propose to evaluate microbial and metabolic profiles in baseline and endpoint colonic mucosal, fecal, and serum samples from human patients at risk for CRC and enrolled in a 90-day phase I clinical trial. Patients will receive daily supplementation with calcium alone, a calcium-rich multimineral (Aquamin?), or placebo (maltodextrin) (n=10 per group). We hypothesize that dietary supplementation will correlate with CRC-protective metabolic profiles and that multimineral supplementation will generate more favorable profiles than calcium supplementation alone.
2019-07-23 | ST001230 | MetabolomicsWorkbench
Project description:We propose to evaluate microbial and metabolic profiles in baseline and endpoint colonic mucosal, fecal, and serum samples from human patients at risk for CRC and enrolled in a 90-day phase I clinical trial. Patients will receive daily supplementation with calcium alone, a calcium-rich multimineral (Aquamin?), or placebo (maltodextrin) (n=10 per group). We hypothesize that dietary supplementation will correlate with CRC-protective metabolic profiles and that multimineral supplementation will generate more favorable profiles than calcium supplementation alone.
2019-07-24 | ST001229 | MetabolomicsWorkbench
Project description:We propose to evaluate microbial and metabolic profiles in baseline and endpoint colonic mucosal, fecal, and serum samples from human patients at risk for CRC and enrolled in a 90-day phase I clinical trial. Patients will receive daily supplementation with calcium alone, a calcium-rich multimineral (Aquamin?), or placebo (maltodextrin) (n=10 per group). We hypothesize that dietary supplementation will correlate with CRC-protective metabolic profiles and that multimineral supplementation will generate more favorable profiles than calcium supplementation alone.
2019-07-23 | ST001225 | MetabolomicsWorkbench
Project description:In the proposed study, investigators will conduct a 90-day dietary intervention study in human subjects. Thirty individuals at risk for adenomatous colon polyp formation will be randomized to receive a calcium and multi-mineral-rich natural product (Aquamin) or a comparable level of calcium alone. There will also be a placebo group. Prior to ingesting the study agents and following the course of treatment, colonic biopsies will be obtained by sigmoidoscopy and quantitatively examined for markers of growth and differentiation. In this study, metabolomic and microbial profiles will also be generated from fecal and colon mucosal samples taken at baseline and study endpoint.
| 2205605 | ecrin-mdr-crc
Project description:The overall goal of this study was to determine if Aquamin®, a multi-mineral natural product, would alter the expression of proteins involved in growth-regulation and differentiation in the colon. Thirty healthy human subjects (at risk for colorectal cancer) were enrolled in a three-arm, 90-day interventional trial in which Aquamin® was compared to calcium alone and placebo. Before and after the interventional period colonic biopsies were obtained. Biopsies were evalu-ated by immunohistology for expression of Ki67 (proliferation marker) and for CK20 and p21 (differentiation markers). Tandem mass tag-mass spectrometry-based detection was used to as-sess levels of multiple proteins. As compared to placebo or calcium, Aquamin® reduced the level of Ki67 expression. Neither intervention altered CK20 expression, while a trend toward in-creased p21 was observed with calcium and Aquamin®. In the proteomic screen, Aquamin® treatment resulted in many more proteins being upregulated (including cytokeratins, cell-cell adhesion molecules and components of the basement membrane) or downregulated (prolifera-tion and nucleic acid metabolism) than placebo. Calcium alone also altered the expression of many of the same proteins but not to the same extent as Aquamin®. We conclude that daily Aquamin® ingestion alters protein expression profile in the colon that could be beneficial to colonic health.
2021-03-19 | PXD024445 | Pride
Project description:Calcium plus vitamin D may be effective in the prevention of colorectal adenoma recurrence. The aim of this study is to investigate the effect of supplementation with calcium plus vitamin D on the recurrence of colorectal adenomas.
| 2166986 | ecrin-mdr-crc
Project description:Nonalcoholic fatty liver disease (NAFLD) is becoming a primary cause of liver damage in Western society. Nonalcoholic steatohepatitis (NASH) is an advanced stage of NAFLD and may lead to liver cancer. Our previous long-term murine studies have shown the beneficial role of Aquamin, a red marine algae-derived (calcium, magnesium, additional trace elements-rich) supplement, in reducing liver injury and decreasing liver tumor incidence. The main objective of the study was to determine how manifestations and effects of NASH can be mitigated using Aquamin. We hypothesized that mice on a high-fat Western diet (HFWD) with minerals would exhibit less liver injury than mice on a HFWD without minerals. Methods: Two cohorts of MS-NASH mice (8-week-old) were placed on a HFWD with and without minerals for 16 weeks. An additional cohort of MS-NASH mice on the same HFWD was treated with obeticholic acid (OCA). C57BL/6 mice on a regular chow were included as a control. During the in-life phase of the study, weight changes were assessed weekly. At termination, livers were histologically assessed for steatosis and fibrosis by using hematoxylin and eosin, and picrosirius red staining. Liver tissue samples were also subjected to tandem mass tag (TMT) mass-spectroscopic proteomics for protein expression profile in individual mice. Results: Mice on HFWD gained more weight than mice on control diet, but there was no overall change in weight for mice on HFWD, irrespective of interventions. On histological assessment, there was no difference in steatosis between the two high-fat groups, but mice on Aquamin showed reduced picrosirius red staining or collagen deposition as compared to placebo on HFWD mice. Regarding proteomic profile, there was a clear distinction among control and HFWD groups. Placebo (on HFWD) mice were used for comparison. Aquamin intervention altered 91 proteins while OCA altered 84 proteins in liver samples with a 2-fold change. Of these, 57 proteins were common between Aquamin and OCA. Most of the proteins were upregulated. Aquamin upregulated 39 unique pathways (with a p-value <0.05) as assessed by the Reactome database. Some of the pathways significantly impacted by Aquamin were formation of cornified envelope; keratinization; gap junction assembly; type I hemidesmosome assembly; apoptosis-related; plasma lipoprotein assembly, remodeling and clearance; and hedgehog “off” state pathways. Proteins downregulated by OCA are mainly involved in the synthesis of bile acids and bile salts. Conclusion: The addition of dietary minerals may play a protective role in interfering with downstream advancement from steatosis to NASH. Our studies provide mechanistic insight into how mineral supplementation may contribute to the reduction in liver injury and tumor formation (one of the most devastating consequences) of fatty liver disease in the context of HFWD-induced steatosis.
2022-06-02 | PXD030954 | Pride
Project description:To further elucidate the mechanism of calcium mediated chemoprevention of colorectal cancer,we have employed whole genome microarray expression profiling as a discovery platform to identify genes that differentially expressed in mice from high calcium group compared those from DMH group.The mice of DMH group were received normal diet (calcium concentration,1.24%) and subcutaneous injection of 1,2-Dimethylhydrazine at a dose of 20 mg/kg once weekly for 20 weeks,the mice of high calcium group were received high calcium diet(calcium concentration,3%) and subcutaneous injection of 1,2-Dimethylhydrazine at a dose of 20 mg/kg once weekly for 20 weeks.The mice were sarcrificed at 24 week.Nine normal colonic mucosa (3 from DMH group, 3 from high calcium group mice with tumors, and 3 from high calcium group mice without tumors) were used for the microarray analysis. The differentially expressed genes were indentified between high calcium group and DMH group,as long as differentially expressed pathways and gene ontology terms.
2011-11-23 | E-GEOD-25680 | biostudies-arrayexpress