Results 31 to 40 of about 207,595 (259)

Choledocholithiasis : whither surgery? [PDF]

open access: yes, 1991
Choledocholithiasis is a common condition. It has been estimated that as many as 24% of patients with cholelithiasis have stones in the common bile duct. Until the last decade, the ’gold standard’ for treatment has been surgery.
LaFerla, Godfrey
core  

Letter to the Editor and Comments on: Intravital dynamic and correlative imaging reveals diffusion-dominated canalicular and flow-augmented ductular bile flux [PDF]

open access: yesarXiv, 2020
Bile, the central metabolic product of the liver, is secreted by hepatocytes into bile canaliculi (BC), tubular subcellular structures of 0.5-2 $\mu$m diameter which are formed by the apical membranes of juxtaposed hepatocytes. BC interconnect to build a highly ramified 3D network that collects and transports bile towards larger interlobular bile ducts
arxiv  

On turbulent friction in straight ducts with complex cross section: the wall law and the hydraulic diameter [PDF]

open access: yes, 2018
We develop predictive formulas for friction resistance in ducts with complex cross-sectional shape based on the use of the log law and neglect of wall shear stress nonuniformities. The traditional hydraulic diameter naturally emerges from the analysis as the controlling length scale for common duct shapes as triangles and regular polygons. The analysis
arxiv   +1 more source

Bile dynamics within the biliary tract and microfluidic-based bile component detection: A review [PDF]

open access: yesarXiv, 2023
Bilestones are solid masses found in the gallbladder or biliary tract, which block the normal bile flow and eventually result in severe life-threatening complications. Studies have shown that bilestone formation may be related to bile flow dynamics and the concentration level of bile components.
arxiv  

Intraoral Drug Delivery: Bridging the Gap Between Academic Research and Industrial Innovations

open access: yesAdvanced Functional Materials, EarlyView.
Intraoral drug delivery offers a promising route for systemic and localized therapies, yet challenges such as enzymatic degradation, limited permeability, and microbial interactions hinder efficacy. This figure highlights innovative strategies—mucoadhesive materials, enzyme inhibitors, and permeation enhancers—to overcome these barriers.
Soheil Haddadzadegan   +4 more
wiley   +1 more source

Bile duct stones, strictures and iatrogenic lesions: studies on early diagnosis and treatment. [PDF]

open access: yes, 2009
Aims: This study was carried out to investigate the role of common liver function tests, and the degree of common bile duct dilatation in the differential diagnosis of extrahepatic cholestasis, as well as the occurrence, diagnosis and treatment of ...
Karvonen, Jukka
core  

Obstructive Jaundice Due to Bile Duct Tumor [PDF]

open access: yes, 2004
We reported here a rare case of a 62 year old male patient with obstructive jaundice due to bile duct tumor. The main clinical features were yellowish eye and skin, followed by pruritus and clay-colored stool.
Lesmana, L. (Laurentius)   +3 more
core   +1 more source

A Highly Adaptable Hydrogen Bond Re‐Orientation (HyBRO) Strategy for Multiscale Vasculature Fabrication

open access: yesAdvanced Materials, EarlyView.
A novel hydrogen bond re‐orientation (HyBRO) strategy enables three‐dimensional (3D) printing of vascular microchannel networks with high accuracy. By switching sacrificial material interactions with nonsolvents, HyBRO prevents swelling and deformation, enabling accurate hierarchical channels spanning a tenfold size range.
Zhencheng Liao   +5 more
wiley   +1 more source

Spontaneous Bile Duct Rupture in Pregnancy [PDF]

open access: yes
Spontaneous bile duct rupture occurred in a 23-year-old who required emergency Cesarean section for fetal distress. This condition has not been reported in association with pregnancy.
Liechty, R. Dale   +2 more
core   +2 more sources

Common features between neoplastic and preneoplastic lesions of the biliary tract and the pancreas [PDF]

open access: yes, 2019
The bile duct system and pancreas show many similarities due to their anatomical proximity and common embryological origin. Consequently, preneoplastic and neoplastic lesions of the bile duct and pancreas share analogies in terms of molecular ...
Alvaro, D   +10 more
core   +1 more source

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