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Liver stiffness

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https://www.readbyqxmd.com/read/29786559/three-dimensional-bioprinting-of-stem-cell-derived-tissues-for-human-regenerative-medicine
#1
REVIEW
Gregor Skeldon, Baltasar Lucendo-Villarin, Wenmiao Shu
Stem cell technology in regenerative medicine has the potential to provide an unlimited supply of cells for drug testing, medical transplantation and academic research. In order to engineer a realistic tissue model using stem cells as an alternative to human tissue, it is essential to create artificial stem cell microenvironment or niches. Three-dimensional (3D) bioprinting is a promising tissue engineering field that offers new opportunities to precisely place stem cells within their niches layer-by-layer...
July 5, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29785393/monitoring-methotrexate-induced-liver-fibrosis-in-patients-with-psoriasis-utility-of-transient-elastography
#2
REVIEW
Harriet S Cheng, Marius Rademaker
Increasingly, existing evidence indicates that methotrexate-associated liver injury is related to comorbid risk factors such as diabetes, alcoholism, and obesity, rather than to methotrexate itself. Despite this fact, significant effort continues to be expended in the monitoring of low-dose methotrexate in patients with psoriasis. The gold standard investigation has been liver biopsy, but this is associated with significant morbidity and mortality. As methotrexate-induced liver injury is uncommon, the risk/benefit ratio of liver biopsy has been questioned...
2018: Psoriasis: Targets and Therapy
https://www.readbyqxmd.com/read/29780135/the-real-world-efficacy-and-safety-of-ombitasvir-paritaprevir-ritonavir-for-hepatitis-c-genotype-1
#3
Akio Miyasaka, Yuich Yoshida, Toshimi Yoshida, Akihiko Murakami, Koichi Abe, Ken Ohuchi, Tadashi Kawakami, Daisuke Watanebe, Takao Hoshino, Kei Sawara, Yasuhiro Takikawa
Objective There are few reports on the outcomes of 12-week paritaprevir, ombitasvir, and ritonavir (PTV/OBV/r) treatment in real-world clinical settings. We aimed to evaluate the efficacy and safety of 12-week treatment with ritonavir-boosted paritaprevir and ombitasvir in patients with hepatitis C virus (HCV) genotype 1 infection in a real-world setting. Methods Fifty-eight patients with chronic hepatitis or compensated hepatic cirrhosis and genotype-1 HCV infection were treated with PTV/OBV/r and followed for 24 weeks after the completion of treatment in 10 centers in northern Tohoku...
May 18, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29779697/usefulness-of-controlled-attenuation-parameter-for-detecting-increased-arterial-stiffness-in-general-population
#4
Hyo Eun Park, Heesun Lee, Su-Yeon Choi, Min-Sun Kwak, Jong In Yang, Jeong Yoon Yim, Goh Eun Chung
BACKGROUND: Liver fibroscan has recently been suggested as an alternative method to measure liver steatosis noninvasively. In this study, we evaluated usefulness of controlled attenuation parameter (CAP) for detecting increased arterial stiffness in general population. METHODS: A total of 515 asymptomatic patients without potential cause of liver disease who had liver fibroscan and cardio-ankle vascular index (CAVI) during their health check-up exams were included...
May 4, 2018: Digestive and Liver Disease
https://www.readbyqxmd.com/read/29774974/stiffness-reconstruction-methods-for-mr-elastography
#5
Daniel Fovargue, David Nordsletten, Ralph Sinkus
Assessment of tissue stiffness is desirable for clinicians and researchers, as it is well established that pathophysiological mechanisms often alter the structural properties of tissue. Magnetic resonance elastography (MRE) provides an avenue for measuring tissue stiffness and has a long history of clinical application, including staging liver fibrosis and stratifying breast cancer malignancy. A vital component of MRE consists of the reconstruction algorithms used to derive stiffness from wave-motion images by solving inverse problems...
May 18, 2018: NMR in Biomedicine
https://www.readbyqxmd.com/read/29770228/acoustic-radiation-force-impulse-arfi-elastography-in-a-cohort-of-alpha-1-antitrypsin-deficient-individuals-and-healthy-volunteers
#6
Sandra Diaz, Behrouz Mostafavi, Hanan A Tanash, Eeva Piitulainen
Background: Acoustic radiation force impulse (ARFI) elastography has been used to assess liver stiffness non-invasively. However, its usefulness in alpha-1 antitripsin-deficient (AATD) individuals is unknown. Purpose: To assess if liver fibrosis is present in a cohort of AATD individuals using ARFI elastography. Material and Methods: Eighty-three participants aged 38-39 years, except for two who were aged 40 years, underwent ultrasound elastography of the liver with ARFI technique...
April 2018: Acta Radiologica Open
https://www.readbyqxmd.com/read/29768686/prevalence-and-predictive-factors-of-moderate-severe-liver-steatosis-in-chronic-hepatitis-c-chc-infected-patients-evaluated-with-controlled-attenuation-parameter-cap
#7
Ana Carolina Cardoso, Renata M Perez, Claudio de Figueiredo-Mendes, Nathalie Carvalho Leite, Henrique Sergio Moraes Coelho, Cristiane A Villela-Nogueira
A novel controlled attenuation parameter (CAP) using FibroScan® has been developed for assessment of liver steatosis. The aim was to evaluate the frequency and associated factors for moderate/severe steatosis evaluated by CAP in CHC patients submitted to transient elastography (TE) by FibroScan® . CHC patients underwent TE with CAP evaluation. The classification of steatosis was defined as: CAP < 222 dB/m = S0; CAP ≥ 222 dB/m and <233dB /m = S1; ≥233 dB/m <290dB/m = S2 and >= 290 dB/m = S3...
May 16, 2018: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/29768330/risk-factors-for-osteoporosis-in-liver-cirrhosis-patients-measured-by-transient-elastography
#8
Jian-Ping Zheng, Hai-Xiong Miao, Shao-Wei Zheng, Wei-le Liu, Chu-Qun Chen, Hao-Bo Zhong, Sheng-Fa Li, Yong-Ping Fang, Chun-Han Sun
Osteoporosis or osteopenia is a common complication in patients with cirrhosis, but little is known about the risk factors for the occurrence of osteoporosis.Patients with liver cirrhosis due to chronic virus infection and alcoholic abuse were enrolled. Bone mineral density (BMD) was determined using dual-energy x-ray absorptiometry (DXA). Osteoporosis was diagnosed according to WHO criteria. The severity of liver stiffness was measured by Fibroscan. Demographic data, such as age, gender, weight, height, and body mass index (BMI), were collected...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29766812/switching-dipeptidyl-peptidase-4-inhibitors-to-tofogliflozin-a-selective-inhibitor-of-sodium-glucose-cotransporter-2-improves-arterial-stiffness-evaluated-by-cardio-ankle-vascular-index-in-patients-with-type-2-diabetes
#9
Nobuhiro Tahara, Sho-Ichi Yamagish, Munehisa Bekki, Atsuko Tahara, Sachiyo Igata, Akihiro Honda, Yoichi Sugiyama, Tomohisa Nakamura, Jiahui Sun, Yuki Kumashiro, Takanori Matsui, Yoshihiro Fukumoto
BACKGROUND: We have found that anagliptin, a dipeptidyl peptidase-4 inhibitor (DPP-4) significantly ameliorates arterial stiffness in type 2 diabetes mellitus (T2DM) patients compared with an equivalent hypoglycemic agent, glimepiride. However, it remains unclear whether and how switching DPP-4 inhibitors to tofogliflozin, a selective inhibitor of sodium-glucose cotransporter 2 (SGLT2) improves arterial stiffness in T2DM patients. METHODS: Nineteen T2DM patients who had received DPP-4 inhibitors for at least 1 year were enrolled in this study...
May 15, 2018: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/29766631/pathological-findings-that-contribute-to-tissue-stiffness-in-the-spleen-of-liver-cirrhosis-patients
#10
Reiichiro Kondo, Masayoshi Kage, Hiroko Iijima, Jiro Fujimoto, Takashi Nishimura, Nobuhiro Aizawa, Jun Akiba, Yoshiki Naito, Hironori Kusano, Masamichi Nakayama, Yutaro Mihara, Masahiko Tanigawa, Hirohisa Yano
AIM: Spleen stiffness is increased in liver cirrhosis (LC). We attempted to characterize the pathological features of spleen in LC. METHODS: We compared pathological findings of resected spleen tissues of 28 LC patients and those of 6 healthy controls. In addition, we measured spleen stiffness before splenectomy by shearwave elastography in 9 LC patients. After splenectomy, we examined relationship between the spleen stiffness and its pathological findings. RESULTS: Passive congestion of the spleen was more frequently observed in the LC patients than in the controls (P < 0...
May 15, 2018: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/29762096/us-time-harmonic-elastography-detection-of-liver-fibrosis-in-adolescents-with-extreme-obesity-with-nonalcoholic-fatty-liver-disease
#11
Christian A Hudert, Heiko Tzschätzsch, Jing Guo, Birgit Rudolph, Hendrik Bläker, Christoph Loddenkemper, Werner Luck, Hans-Peter Müller, Daniel C Baumgart, Bernd Hamm, Jürgen Braun, Hermann-Georg Holzhütter, Susanna Wiegand, Ingolf Sack
Purpose To measure in vivo liver stiffness by using US time-harmonic elastography in a cohort of pediatric patients who were overweight to extremely obese with nonalcoholic fatty liver disease (NAFLD) and to evaluate the diagnostic value of time-harmonic elastography for differentiating stages of fibrosis associated with progressive disease. Materials and Methods In this prospective study, 67 consecutive adolescents (age range, 10-17 years; mean body mass index, 34.7 kg/m2 ; range, 21.4-50.4 kg/m2 ) with biopsy-proven NAFLD were enrolled...
May 15, 2018: Radiology
https://www.readbyqxmd.com/read/29755635/microfluidic-platform-for-probing-cancer-cells-migration-property-under-periodic-mechanical-confinement
#12
Dongce Ma, Ran Wang, Shuxun Chen, Tao Luo, Yu-Ting Chow, Dong Sun
Cancer cell migration and invasion, which are involved in tumour metastasis, are hard to predict and control. Numerous studies have demonstrated that physical cues influence cancer cell migration and affect tumour metastasis. In this study, we proposed the use of a microchannel chip equipped with a number of vertical constrictions to produce periodic compression forces on cells passing through narrow channels. The chip with repeated vertical confinement was applied on adherent MHCC-97L liver cancer cells and suspended OCI-AML leukaemia cells to determine the migration ability of these cancer cells...
March 2018: Biomicrofluidics
https://www.readbyqxmd.com/read/29746172/pharmacological-decrease-of-liver-stiffness-is-pressure-related-and-predicts-long-term-clinical-outcome
#13
Felix Piecha, Mattias Mandorfer, Teresa Peccerella, Ann-Kathrin Ozga, Tanja Poth, Anna Vonbank, Helmut Karl Seitz, Vanessa Rausch, Thomas Reiberger, Sebastian Mueller
Liver stiffness (LS) as measured by transient elastography is increasingly used to non-invasively assess liver fibrosis. However, LS is efficiently modulated by confounders like arterial and portal pressure (PP). We here study the effect of acute hemodynamic changes on LS (measured by µFibroscan) in a rodent model of cirrhosis in response to pharmacological modulation of PP by losartan, NO-donors and propranolol. Additionally, changes of LS and the hepatic venous pressure gradient (HVPG) under propranolol therapy were assessed with regard to clinical outcomes in a human cohort of n=38 cirrhotic patients...
May 10, 2018: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29742149/the-il7ra-rs6897932-polymorphism-is-associated-with-progression-of-liver-fibrosis-in-patients-with-chronic-hepatitis-c-repeated-measurements-design
#14
María Ángeles Jiménez-Sousa, Ana Zaida Gómez-Moreno, Daniel Pineda-Tenor, Luz Maria Medrano, Juan José Sánchez-Ruano, Amanda Fernández-Rodríguez, Tomas Artaza-Varasa, José Saura-Montalbán, Sonia Vázquez-Morón, Pablo Ryan, Salvador Resino
The polymorphisms at the α-chain of the IL-7 receptor (IL7RA) have been related to T-cell homeostasis and development and may contribute to immune system deregulation. In the present study, we analyzed the association between IL7RA polymorphisms and the progression of liver fibrosis in patients infected with HCV. We carried out a retrospective study with a design consisting of repeated measurements in 187 HCV-infected patients, to study the risk prediction of liver fibrosis progression using genetic factors...
2018: PloS One
https://www.readbyqxmd.com/read/29740826/can-point-shear-wave-elastography-differentiate-focal-nodular-hyperplasia-from-hepatocellular-adenoma
#15
Pavel Taimr, Anne Julia Klompenhouwer, Maarten G J Thomeer, Bettina E Hansen, Jan N M Ijzermans, Robert A de Man, Robert J de Knegt
PURPOSE: Focal nodular hyperplasia (FNH) and hepatocellular adenoma (HCA) are liver tumors that require different management. We assessed the potential of point shear wave elastography (pSWE) to differentiate FNH from HCA and the interobserver and intraobserver reliability of pSWE in the examination of these lesions and of native liver tissue (NLT). METHODS: The study included 88 patients (65 FNH, 23 HCA). pSWE was performed by two experienced liver sonographers (observers 1 [O1] and 2 [O2]) and acquired within the lesion of interest and NLT...
May 8, 2018: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/29739341/hbv-and-hiv-viral-load-but-not-microbial-translocation-or-immune-activation-are-associated-with-liver-fibrosis-among-patients-in-south-africa
#16
Tongai Gibson Maponga, Monique I Andersson, Christoffel J van Rensburg, Joop E Arends, Jantjie Taljaard, Wolfgang Preiser, Richard H Glashoff
BACKGROUND: Co-infection with HIV negatively impacts the progression of chronic hepatitis B virus (HBV) infection, including causing rapid progression to liver fibrosis. Sub-Saharan Africa represents arguably the most important intersection of high endemicity of both chronic hepatitis B virus (HBV) infection and HIV infection. METHODS: We recruited 46 HBV/HIV-co-infected; 47 HBV-monoinfected; 39 HIV-monoinfected; and 37 HBV/HIV-uninfected patients from Tygerberg Hospital, Cape Town, South Africa...
May 8, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29738353/spleen-stiffness-differentiates-between-acute-and-chronic-liver-damage-and-predicts-hepatic-decompensation
#17
Phil Meister, Alexander Dechêne, Matthias Büchter, Julia Kälsch, Guido Gerken, Ali Canbay, Christoph Jochum
OBJECTIVES: Spleen stiffness (SS) correlates with liver stiffness (LS) and hepatic venous pressure gradient. The latter is currently the most accurate predictor of hepatic decompensation. Our study aims to check whether SS has a similar predictive capability, while being an easy-to-perform noninvasive test in a real-life patient cohort. METHODS: Concomitantly, 210 successive patients were examined and received liver and SS measurements and a standard laboratory...
April 17, 2018: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/29736946/accuracy-of-liver-stiffness-spleen-stiffness-and-ls-spleen-diameter-to-platelet-ratio-score-in-detection-of-esophageal-varices-systemic-review-and-meta-analysis
#18
Wuttiporn Manatsathit, Hrishikesh Samant, Saurabh Kapur, Thammasin Ingviya, Mohammad Esmadi, Karn Wijarnpreecha, Timothy McCashland
BACKGROUND: There is increasing evidence of non-invasive measurement using elastography such liver stiffness (LS), spleen stiffness (SS), and LS-spleen diameter to platelet ratio score (LSPS) for detection of esophageal varices (EV); however, data regarding comparison between these three parameters are limited. METHODS: We performed a systemic review and meta-analysis of studies evaluating performance of LS, SS, and LSPS for detection of EV and high risk/clinically significant EV (HREV)...
May 8, 2018: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29736835/value-of-two-dimensional-shear-wave-elastography-for-assessing-acute-liver-congestion-in-a-bama-mini-pig-model
#19
Li-Ting Xie, Dan-Xia Xu, Guo Tian, Li-Yun Zhong, Qi-Yu Zhao, Qing-Hong Ke, Tian-An Jiang
BACKGROUND: To date, liver congestion is one of the most significant clinical diseases. However, few studies have profoundly investigated the development, pathology, and prognosis of the important problems associated with acute hepatic congestion. AIMS: To explore the value of noninvasive two-dimensional shear wave elastography (2D-SWE) for assessing acute liver congestion in an animal model. METHODS: Six healthy Bama mini-pigs were used for this research and randomly divided into the experimental group and control group...
May 8, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29731186/a-novel-fibroscan-examination-dedicated-to-spleen-stiffness-measurement
#20
Cécile Bastard, Véronique Miette, Paul Calès, Horia Stefanescu, Davide Festi, Laurent Sandrin
Esophageal varices (EVs) are among the most severe complications of cirrhosis, with a prevalence of 50% to 60% among cirrhotic patients. International guidelines therefore recommend that cirrhotic patients should be screened for the presence of EVs. The main objective of this study was to introduce a new spleen-dedicated FibroScan (Echosens, Paris, France) examination and to assess its performance in detecting large EVs (grade 2 and 3). This novel examination has been validated in simulation and phantom studies and has been used in a population of patients with chronic liver disease...
May 3, 2018: Ultrasound in Medicine & Biology
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