Differences of reabsorption of unconjugated BSP and BSP-glutathione from the rat biliary tree after retrograde intrabiliary injection

1975 ◽  
Vol 165 (3) ◽  
pp. 181-190 ◽  
Author(s):  
H. G. Dammann ◽  
G. Czok
Keyword(s):  
Biliary Tree ◽  
Retrograde Intrabiliary Injection

scholarly journals Retrograde intrabiliary injection of amphipathic materials causes phospholipid secretion into bile. Taurocholate causes phosphatidylcholine secretion, 3-[(3-cholamidopropyl)dimethylammonio]-propane-1-sulphonate (CHAPS) causes mixed phospholipid secretion

1989 ◽  
Vol 258 (1) ◽  
pp. 17-22 ◽  
Author(s):  
R Coleman ◽  
K Rahman ◽  
K S Kan ◽  
R A Parslow
Keyword(s):  
Bile Acid ◽  
Fold Increase ◽  
Biliary Tree ◽  
Saline Control ◽  
Dose Dependency ◽  
Bile Sample ◽  
Retrograde Intrabiliary Injection ◽  
Single Compound ◽  
Phosphatidylcholine Secretion ◽  
Control Injection

The control of biliary phospholipid and cholesterol secretions by bile acid was studied by using the technique of retrograde intrabiliary injection. Taurocholate (TC), a moderately hydrophobic bile acid, taurodehydrocholate (TDHC), a hydrophilic non-micelle-forming bile acid, and 3-[(3-cholamidopropyl)-dimethylammonio]propane-1-sulphonate (CHAPS), a detergent, were individually administered by retrograde intrabiliary injection (RII) into the biliary tree, and bile acids, phospholipids and cholesterol subsequently appearing in the bile were measured. TC (1.3 mumol; 45 microliters) injected retrogradely provoked a 3.5-fold increase in biliary phospholipid output for 40 min, as compared with the saline control. Injection of 2.7 mumol of TC (90 microliters) caused a 7.5-fold increase in phospholipid output, which reached a peak at 12 min after RII, and phospholipid output continued for 40 min. Cholesterol output was also elicited under these conditions, showing both dose-dependency and extended secretion. Injection of 1.8 mumol of TDHC caused very little increase in either biliary phospholipid or cholesterol. Injection of 0.9 mumol of CHAPS (45 microliters) provoked a single substantial peak of phospholipid output in the 3 min bile sample. T.l.c. analysis of the phospholipid extracts of the bile collected after each compound showed, for TC, a single compound which co-migrated with the phosphatidylcholine standard, whereas for CHAPS substantial amounts of other phospholipids were present.

Histological and ultrastructural examination of the intrahepatic biliary tree in primary sclerosing cholangitis

2008 ◽  
Vol 6 (6) ◽  
pp. 317-325 ◽  
Author(s):  
Yasuni Nakanuma ◽  
Nobuyuki Hirai ◽  
Naoko Kono ◽  
Goroku Ohta
Keyword(s):  
Primary Sclerosing Cholangitis ◽  
Sclerosing Cholangitis ◽  
Biliary Tree ◽  
Ultrastructural Examination

scholarly journals Percutaneous transhepatic biliary puncture simulator: a cord network prototype

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Rubén Lopez Benítez ◽  
Tomás Reyes del Castillo ◽  
David Benz ◽  
Carsten Fechner ◽  
Lorant Szabo ◽  
...  
Keyword(s):  
Training Session ◽  
Lower Lobe ◽  
Biliary Tree ◽  
Training Model ◽  
Polystyrene Foam ◽  
Wooden Frame ◽  
Biliary Ducts ◽  
Hand Coordination ◽  
Radiology Residents ◽  
Positive Results

Abstract Background The aim of this study was to present a percutaneous transhepatic biliary puncture simulator that can be used without radiation exposure and that reflects the conventional anatomy of the biliary ducts and its vicinity structures. Methods An anatomically based model of the biliary tree was developed using a cord network fixed to a wooden frame. The skin, ribs, intercostal muscles, and right lower lobe pleura were simulated using foam sponge, plastic tubes, a polystyrene foam panel, and an air pad, respectively. For the puncture, we used a 20-G Chiba needle and a wire with distal double arches; these were used to troll a cord, simulating the successful puncture of a bile duct. A camera was also placed above the model to allow the trainees to train eye-hand coordination while viewing the image on a monitor in real time. The simulator was tested with 60 radiology residents to evaluate the confidence and skills transferability of the training model. Results After receiving an introduction of the system and 5 min of training under tutor surveillance, all participants were able to troll a cord of the biliary simulator by themselves in less than 4 min. Only one participant punctured the simulated pleura. The participants’ evaluations showed positive results, with increased user confidence and skills transferability after the training session. Conclusions This proposed simulator can be an effective tool to improve a trainee’s confidence and competence while achieving procedural and non-procedural interventional radiology skills related to the liver. Trial registration Retrospectively registered

scholarly journals AB0545 GASTROINTESTINAL INVOLVEMENT IN SYSTEMIC SCLEROSIS

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1569.2-1569
Author(s):  
A. Argibay ◽  
I. Novo ◽  
M. Ávila ◽  
P. Diéguez González ◽  
M. Estévez Gil ◽  
...  
Keyword(s):  
Systemic Sclerosis ◽  
Gastroesophageal Reflux ◽  
Proton Pump Inhibitors ◽  
Proton Pump ◽  
Biliary Tree ◽  
Motility Disorder ◽  
Anatomical Site ◽  
Digital Ulcers ◽  
Lung Involvement ◽  
Imaging Results

Background:Systemic sclerosis (SSc) is a chronic, connective tissue disease with an autoimmune pattern characterized by inflammation, fibrosis and microcirculation changes leading to internal organs malfunctions. The gastrointestinal tract (GIT) is affected in up to 90% of patients with SSc. Any part of the GIT from the mouth to the anus can be affected. There are few descriptive studies about SSc-related GIT involvement.Objectives:We aimed to characterize the GIT involvement in patients with SSc.Methods:This retrospective study included all patients from SSc cohort of our autoimmune diseases unit in a tertiary referral centre. All patients fulfilled SSc criteria proposed by the American College of Rheumatology. All subjects’ histories were evaluated. Laboratory and imaging results were obtained from the hospital files. Patients with digestive manifestations were compared with patients without GIT involvement. Chi2 and t-student were used, using the statistical package SPSS25.0.Results:83 subjects with SSc were included, 68 (81,9%) of them were women. The mean age at the onset of SSc was 62,1 ± 15,3 years (range 26-89) with a mean follow-up of 9,6 ± 7,4 years. 80,7% of patients had limited SSc, 12% diffuse SSc, 4.8% SSc sine scleroderma and 2,4% early SSc. Considering the immunological profile 12 (14,5%) had Scl70 antibodies, 49 (59%) anticentromere and 21 (25,3%) had ANA antibodies without specificity for anti-Scl70 or anticentromere. 37,3% patients had lung involvement, 20,5% scleroderma and 30,1% digital ulcers. 79,5% of SSc patients were treated with proton pump inhibitors or H2 blockers. 53 (63,9%) patients with SSc had GIT involvement. In 11 patients (20,7%) digestive involvement was diagnosed before SSc (mean 26,2 months). Esophageal involvement occurred in 83%, gastric involvement in 28,3%, intestine involvement in 24,5% and liver and biliary tree involvement in 26,4%. See table 1. No significant differences in age, sex, SSc subtype, autoantibody profile, lung involvement, skin disease, mortality and therapy were observed between patients with or without GIT manifestations. There were no deaths associated with GIT involvement. The most common pharmacologic therapy used was proton pump inhibitors (86,8%), domperidone (20,8%) and antibiotic rotation (17%).EsophagealGastricIntestinalLiver and biliary tree44/53 (83%)15/53 (28,3%)12/53 (24,5%)14/53 (26,4%)Esophageal motility disorder 8 (15,1%)Gastroparesis 6 (11,3%)Small bacterial overgrowth 7 (13,2%)Primary biliary cholangitis 9 (17%)Gastroesophageal reflux 40 (75,5%)Abdominal pain /nausea 10 (18,9%)Colonic inertia 1 (1,9%)Autoimmune hepatitis 3 (5,7%)Dysphagia 11 (20,8%)Subacute gastritis 7 (13,2%)Diarrhea 6 (11,3%)Cholestatic liver enzymes 11 (20,8%)Flatulence / abdominal discomfort 6 (11,3%)Cirrhosis 2 (3,8%)Conclusion:Almost two thirds of our cohort of SSc have symptomatic gastrointestinal disease. GIT manifestations are heterogeneous. Symptoms are non-specific and overlapping for a particular anatomical site. Esophagus is the most commonly affected. More than seventy-five per cent of patients experience symptoms of gastroesophageal reflux. We did not find differences among patients with and without SSc GIT disease. 17% of patients had a Reynold’s syndrome.References:[1]Alastal Y et al. Gastrointestinal manifestations associated with systemic sclerosis: results from the nationwide inpatient simple. Ann Gastroenterol 2017; 30 (5): 1-6.[2]Savarino E et al. Gastrointestinal motility disorder assessment in systemic sclerosis. Rheumatology. 2013; 52(6):1095–100.[3]Steen VD et al. Severe organ involvement in systemic sclerosis with diffuse scleroderma. Arthritis and rheumatism. 2000; 43(11):2437–44.Disclosure of Interests:None declared

scholarly journals Endoscopic Fistulotomy – ‘The Suprapapillary Punch’: A Method of Access to the Bile Duct during ERCP

1994 ◽  
Vol 8 (1) ◽  
pp. 33-35
Author(s):  
Noel B Hershfield
Keyword(s):  
Bile Duct ◽  
Common Bile Duct ◽  
Endoscopic Retrograde Cholangiopancreatography ◽  
Biliary Tree ◽  
Usual Method ◽  
Endoscopic Retrograde ◽  
The Common ◽  
A Minor ◽  
Endoscopic Fistulotomy

Endoscopic retrograde cholangiopancreatography (ERCP) is established as the method of choice to investigate the biliary tree when obstruction is suspected. On rare occasions, the papilla cannot be entered because of anatomical or pathological abnormalities. This report describes endoscopic fistulotomy or the suprapapillary punch that has been carried out at the Foothills Hospital in Calgary, Alberta, on 30 of 623 patients referred for ERCP for conditions causing obstruction of the common bile duct or suspected obstruction of the common bile duct. The following communication also describes the method of suprapapillary punch or endoscopic fistulotomy. Results have been excellent with only one complication, a minor attack of pancreatitis after the procedure. In summary, the suprapapillary punch or fistulotomy is a safe and useful method for entering the common bile duct when access by the usual method is impossible.

scholarly journals Quantitative multiparametric MRI as a non-invasive stratification tool in children and adolescents with autoimmune liver disease

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kamil Janowski ◽  
Elizabeth Shumbayawonda ◽  
Lin Cheng ◽  
Caitlin Langford ◽  
Andrea Dennis ◽  
...  
Keyword(s):  
Liver Function ◽  
Spin Echo ◽  
Rank Correlation ◽  
Biliary Tree ◽  
Liver Function Tests ◽  
Multiparametric Mri ◽  
Fast Spin Echo ◽  
Baseline Serum ◽  
Function Tests ◽  
Imaging Markers

AbstractAutoimmune hepatitis (AIH) and autoimmune sclerosing cholangitis (ASC) are two very closely related autoimmune liver diseases with overlapping clinical features and similar management strategies. The purpose of this study was to assess the utility of quantitative imaging markers to distinguish ASC from AIH in paediatrics. 66 participants (N = 52 AIH, N = 14 ASC) aged 14.4 ± 3.3 years scheduled to undergo routine biopsy and baseline serum liver biochemistry testing were invited to undergo MRI (non-contrast abdominal MRI and 3D fast spin-echo MRCP). Multiparametric MRI was used to measure fibro-inflammation with corrected T1 (cT1), while the biliary tree was modelled   using quantitative MRCP (MRCP +). Mann–Whitney U tests were performed to compare liver function tests with imaging markers between patient groups (ASC vs AIH). Receiver operating characteristic curves and stepwise logistic regressions were used to identify the best combination of markers to discriminate between ASC and AIH. Correlations between liver function tests and imaging markers were performed using Spearman’s rank correlation. cT1 was significantly correlated with liver function tests (range 0.33 ≤ R ≤ 56, p < 0.05), as well as with fibrosis, lobular and portal inflammation (range 0.31 ≤ R ≤ 42, p < 0.05). 19 MRCP + metrics correlated significantly with liver function tests (range 0.29 ≤ R ≤ 0.43, p < 0.05). GGT and MRCP + metrics were significantly higher in ASC compared to those with AIH. The best multivariable model for distinguishing ASC from AIH included total number of ducts and the sum of relative severity of both strictures and dilatations AUC: 0.91 (95% CI 0.78–1). Quantitative MRCP metrics are a good discriminator of ASC from AIH.

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