Senna Bisacodyl
Senna Bisacodyl - Related Videos
10:24
A High Throughput in situ Hybridization Method to Characterize mRNA Expression Patterns in the Fetal Mouse Lower Urogenital Tract
0 Views •
Cited by 49 •
2011
Here, we describe an efficient high throughput in situ hybridization (ISH) method for visualizing patterns of mRNA expression in developing fetal mouse prostate tissue sections. The method can be easily adapted to visualize mRNA expression patterns in other mouse tissues or in tissues from other species.
12:16
Production, Characterization and Potential Uses of a 3D Tissue-engineered Human Esophageal Mucosal Model
0 Views •
Cited by 3 •
2015
This manuscript describes the production, characterization and potential uses of a tissue engineered 3D esophageal construct prepared from normal primary human esophageal fibroblast and squamous epithelial cells seeded within a de-cellularized porcine scaffold. The results demonstrate the formation of a mature stratified epithelium similar to the normal human esophagus.
10:51
Mammosphere Formation Assay from Human Breast Cancer Tissues and Cell Lines
0 Views •
Cited by 116 •
2015
Floating mammosphere assays can investigate the subset of stem-like breast cancer cells that survive in suspension conditions and show enhanced tumorigenesis when implanted into mice. This protocol provides a convenient in vitro measure of sphere-forming ability, a proxy for in vivo tumorigenesis, while facilitating analysis of the stem-associated transcriptional landscape.
11:20
Affinity Purification of Influenza Virus Ribonucleoprotein Complexes from the Chromatin of Infected Cells
0 Views •
Cited by 3 •
2012
Influenza viruses replicate their RNA genome in association with host-cell chromatin. Here, we present a method to purify intact viral ribonucleoprotein complexes from the chromatin of infected cells. Purified viral complexes can be analyzed by both Western blot and primer extension of protein and RNA content, respectively.
14:04
Viral Nanoparticles for In vivo Tumor Imaging
0 Views •
Cited by 45 •
2012
Plant viral nanoparticles (VNPs) are promising platforms for applications in biomedicine. Here, we describe the procedures for plant VNP propagation, purification, characterization, and bioconjugation. Finally, we show the application of VNPs for tumor homing and imaging using a mouse xenograft model and fluorescence imaging.
FAQs
Senna relies on colonic bacteria to convert its sennosides into active metabolites, whereas bisacodyl is converted within the intestine into an active compound. This distinction illustrates two routes of drug activation in gastrointestinal pharmacology. In both cases, activation precedes stimulation of enteric nerves and intestinal secretion, linking chemical conversion with the subsequent bowel response.
Enteric nerve stimulation increases colonic activity, which promotes propulsion of intestinal contents. At the same time, these agents increase intestinal secretion and water movement into the colon. The combined effects help explain why their action depends on both motility and fluid handling rather than on a single physical change in stool consistency.
The two agents require different gastrointestinal activation steps before exerting their effects. Senna depends on bacterial conversion in the colon, while bisacodyl undergoes intestinal conversion to an active compound. Consequently, the activation pathway is an important pharmacological variable when considering how each medicine reaches the stage of enteric stimulation, secretion, and increased propulsion.
Clinicians use these stimulant laxatives for short-term relief of constipation rather than as a general long-term treatment described by the source. In selected regimens, they may also be included before diagnostic procedures to prepare the bowel. The intended use therefore determines whether the desired outcome is routine bowel movement or adequate intestinal clearance for examination.
The main outcomes are increased bowel movement, greater colonic propulsion, and increased movement of water into the colon. Pharmacological assessment should also consider abdominal cramping and diarrhea, which are identified adverse effects. Observing both the intended bowel response and these unwanted effects helps characterize the balance between therapeutic activity and excessive gastrointestinal stimulation.
Senna and bisacodyl connect several core pharmacology concepts in one gastrointestinal example: drug activation, site-specific processing, enteric nerve stimulation, secretion, motility, and onset of action. Their use in constipation and selected bowel-preparation regimens also shows how the same broad pharmacological effects can support different clinical goals while producing recognizable adverse effects such as cramping or diarrhea.