Psyllium Methylcellulose
Psyllium Methylcellulose - Related Videos
07:53
Megakaryocyte Culture in 3D Methylcellulose-Based Hydrogel to Improve Cell Maturation and Study the Impact of Stiffness and Confinement
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Cited by 3 •
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It is now acknowledged that the three-dimensional environment of cells can play an important role in their behavior, maturation and/or differentiation. This protocol describes a three-dimensional cell culture model designed to study the impact of physical containment and mechanical constraints on megakaryocytes.
02:39
Fluorescence Imaging of Biomaterial-Associated Bacterial Infection in Zebrafish Embryos
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2025
Source: Zhang, X., et al. A Zebrafish Embryo Model for In Vivo Visualization and Intravital Analysis of Biomaterial-associated Staphylococcus aureus Infection. J. Vis. Exp. (2019)This video demonstrates fluorescence imaging of zebrafish embryos injected with Staphylococcus aureus, enabling quantification of infection progression and bacterial distribution to assess the impact of biomaterial microspheres on host-pathogen interactions in vivo.
03:18
Generation of a Three-Dimensional Spheroid Model of Tumor Cell Invasion
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Source: Guyon, J., et al. A 3D Spheroid Model for Glioblastoma. J. Vis. Exp. (2020)The video demonstrates the generation of a three-dimensional spheroid model of tumor cell invasion. Spheroids are formed from human brain tumor cells and embedded in a collagen matrix. The tumor cells at the spheroid periphery adopt an invasive phenotype, secreting proteases to degrade the collagen and advancing to invade the surrounding matrix.
03:31
Methyl Cellulose-Based CFU Assay: A Method to Determine the Effect of Anti-cancer Compounds on Colony Formation in Leukemic Cells
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This video describes the protocol for methyl cellulose-based colony formation unit or CFU assay, which helps identify and count the number of colonies formed by leukemic cells in response to the treatment with anticancer compounds.
10:49
Pre-clinical Evaluation of Tyrosine Kinase Inhibitors for Treatment of Acute Leukemia
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Receptor tyrosine kinases are ectopically expressed in many cancers and have been identified as therapeutic targets in acute leukemia. This manuscript describes an efficient strategy for pre-clinical evaluation of tyrosine kinase inhibitors for the treatment of acute leukemia.
FAQs
Psyllium and methylcellulose act through physical changes in intestinal contents rather than by directly stimulating the bowel with a stimulant mechanism. Water retention produces expanded, softer contents, while intestinal distension supports peristalsis. This distinction makes them suitable when gradual regulation of stool passage is preferred over an approach based on stimulant laxation.
Water enables the polysaccharides to hydrate and form a gel within the intestinal lumen. That hydrated material contributes to increased stool volume and improved consistency, allowing distension of the intestine to support peristaltic movement. If insufficient fluid is available, the intended stool-softening and volume-increasing effects may be reduced.
Because these polysaccharides are poorly absorbed, their action remains primarily within the intestinal lumen rather than depending on systemic exposure. Their effects arise from modifying the physical properties of intestinal contents, which distinguishes them pharmacologically from agents whose actions depend on absorption and distribution throughout the body.
After hydration, the expanded intestinal contents increase stool volume and create distension of the bowel wall. That distension provides the physical stimulus associated with promoting peristalsis, helping move the softened contents through the intestine. The sequence links water retention, bulk formation, mechanical stimulation, and regulated stool passage.
Adequate fluid intake should accompany oral administration. Fluid supports formation of the hydrated gel and helps the contents achieve the intended softer consistency and increased volume. Without enough hydration, effectiveness may decline and the expanded material may increase the risk of gastrointestinal obstruction, making fluid guidance central to safe use.
These agents are suited to constipation management when gradual stool regulation is desired. Their bulk-forming, locally acting mechanism supports routine adjustment of stool volume and consistency rather than relying on stimulant laxation. The pharmacological choice therefore reflects the intended pace and type of bowel regulation, together with the requirement for adequate hydration.
The relevant outcomes are increased stool volume, softer stool consistency, and improved regulation of bowel function. These effects reflect successful hydration and expansion of intestinal contents, followed by distension-associated support of peristalsis. Evaluation should remain focused on the intended local changes in stool properties and passage rather than systemic drug effects.