Duodenal Release
Duodenal Release - Related Videos
10:41
Robotic D3 Partial Duodenal Resection with Primary Side-to-Side Anastomosis
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2023
This protocol presents a case of a robotic partial duodenal resection with primary side-to-side duodeno-jejunal reconstruction in a patient with a 5 cm duodenal stenosis. This is done at the third duodenal segment (D3) after an endoscopic mucosal resection (EMR) for a duodenal polyp.
01:28
Energy-releasing Steps of Glycolysis
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2019
Glycolysis is divided into two phases based on whether energy is utilized or released. While the first phase consumes ATP, the second phase produces energy in the form of ATP and NADH. The energy is released over a sequence of reactions that turns G3P into pyruvate. The energy-releasing phase—steps 6-10 of glycolysis—occurs twice, once for each of the two 3-carbon sugars produced during steps 1-5 of the first phase. The first energy-releasing step—the 6th step of glycolysis —consists of two...
06:43
Robotic Duodenal Sleeve Resection for Gastrointestinal Stromal Tumor with Rare Exon 8 KIT Mutation Following Neoadjuvant Imatinib
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2026
This video case report demonstrates the unique management of a duodenal gastrointestinal stromal tumor with a rare, understudied, exon 8 KIT mutation. Neoadjuvant therapy resulted in a 30% reduction in tumor size, making the patient a candidate for a robotic-assisted duodenal sleeve resection instead of the more morbid pancreaticoduodenectomy.
01:25
Inhibitors Of Virion Release
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2026
Viral replication and dissemination rely on efficient mechanisms for host cell entry, genome replication, assembly, and release. Influenza viruses, such as types A and B, are negative-sense single-stranded RNA viruses with a segmented genome, that depend on two critical surface glycoproteins to carry out these processes: hemagglutinin (HA) and neuraminidase (NA). HA initiates infection by binding to sialic acid residues on the surface of host epithelial cells, facilitating receptor-mediated...
01:22
Modified-Release Drug Delivery Systems: Drug Release Characteristics
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2026
Drug release from modified-release dosage forms is designed to achieve specific therapeutic effects by controlling the rate and extent of drug release. The classification of these drug release systems is based on key pharmacokinetic assumptions: drug disposition follows first-order kinetics, drug release is the rate-limiting step in absorption, and the released drug is rapidly and completely absorbed.There are four major models of drug release patterns. The first model is the slow zero-order...
FAQs
Signals from the duodenum respond to the acidity, fat, and nutrient content of incoming chyme. This enterogastric feedback reduces or adjusts gastric emptying, while hormones such as secretin and cholecystokinin participate in the regulation. The resulting control prevents the intestine from receiving more material than it can neutralize, mix, digest, and absorb efficiently.
Intermittent opening of the pyloric sphincter delivers chyme in small portions rather than as one continuous bolus. This pattern gives the duodenum time to respond to each incoming load and coordinate neutralization with bile and pancreatic secretions. Such pacing supports orderly digestion and helps align gastric emptying with the intestine’s processing capacity.
Duodenal acidity, fat, and nutrient content act as important regulatory signals. As these characteristics are detected, enterogastric feedback and associated hormonal signals modify gastric emptying. Consequently, the composition of chyme affects not only what enters the duodenum, but also how rapidly additional stomach contents are permitted to pass forward for intestinal processing.
Once chyme reaches the duodenum, its acidity and nutrient composition contribute to regulatory signaling. The intestinal contents then undergo neutralization and mixing with bile and pancreatic secretions. These coordinated events prepare partially digested material for efficient nutrient digestion and absorption, linking controlled gastric emptying with the next stages of small-intestinal processing.
In gastrointestinal motility research, duodenal release provides a framework for examining how gastric emptying is coordinated with intestinal conditions. Investigators can focus on the timing of pyloric passage, the feedback generated by acidity, fat, and nutrients, and the hormonal regulation associated with secretin and cholecystokinin. These relationships help characterize digestive control and motility.
Controlled passage into the duodenum is relevant to oral drug formulations designed for intestinal delivery. The timing and regulation of gastric emptying influence when a formulation reaches the small intestine, where intestinal conditions support the intended delivery context. Studying this process therefore connects gastrointestinal physiology with the design and evaluation of orally administered preparations.