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https://www.readbyqxmd.com/read/30001929/novel-mutations-in-hint1-gene-cause-autosomal-recessive-axonal-neuropathy-with-neuromyotonia-in-two-cases-of-sensorimotor-neuropathy-and-one-case-of-motor-neuropathy
#1
Lingchao Meng, Jun Fu, He Lv, Wei Zhang, Zhaoxia Wang, Yun Yuan
Autosomal recessive axonal neuropathy with neuromyotonia (ARANNM) is a rare disease caused by mutations of histidine triad nucleotide binding protein 1 (HINT1) gene. ARANNM has been reported mainly in European countries but little reported so far in China. We describe novel mutations of HINT1 in three Chinese patients with ARANNM from unrelated families. Patient 1 was a 14-year-old girl who presented with progressive distal weakness of upper limbs at two years of age. After that, she reported weakness of both feet, and difficulty in muscle relaxation after making a fist...
May 15, 2018: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/29990295/a-case-of-synthetic-cannabinoid-poisoning-in-croatia
#2
Davorka Sutlović, Ingrid Prkačin, Fabio Vaiano, Elisabetta Bertol, Maja Veršić Bratinčević, Marija Definis-Gojanović
The number of new psychoactive substances (NPS), synthetic cannabinoids (SCs) in particular, is growing constantly. Because of the insufficiently explored effects on consumer health, they have become a major problem in the emergency departments. They are difficult to identify, and there are no antidotes that could reverse their detrimental effects. We report a case of poisoning of a young man who used SCs. The patient was admitted to the emergency department of the Clinical Hospital Merkur, Zagreb (Croatia) after sniffing and smoking a herbal product bought on the street...
June 1, 2018: Arhiv za Higijenu Rada i Toksikologiju
https://www.readbyqxmd.com/read/29938290/hydrodynamics-of-shape-driven-rigidity-transitions-in-motile-tissues
#3
Michael Czajkowski, Dapeng Bi, M Lisa Manning, M Cristina Marchetti
In biological tissues, it is now well-understood that mechanical cues are a powerful mechanism for pattern regulation. While much work has focused on interactions between cells and external substrates, recent experiments suggest that cell polarization and motility might be governed by the internal shear stiffness of nearby tissue, deemed "plithotaxis". Meanwhile, other work has demonstrated that there is a direct relationship between cell shapes and tissue shear modulus in confluent tissues. Joining these two ideas, we develop a hydrodynamic model that couples cell shape, and therefore tissue stiffness, to cell motility and polarization...
July 11, 2018: Soft Matter
https://www.readbyqxmd.com/read/29890010/repeating-measurements-by-transient-elastography-in-non-alcoholic-fatty-liver-disease-patients-with-high-liver-stiffness
#4
Jeremy Chak-Lun Chow, Grace Lai-Hung Wong, Anthony Wing-Hung Chan, Sally She-Ting Shu, Carmen Ka-Man Chan, Julie Ka-Yu Leung, Paul Cheung-Lung Choi, Angel Mei-Ling Chim, Henry Lik-Yuen Chan, Vincent Wai-Sun Wong
BACKGROUND AND AIM: The Baveno VI Consensus recommends repeating examination in patients with high liver stiffness measurement (LSM) by transient elastography to reduce false-positive diagnosis of advanced liver disease. We tested whether repeating transient elastography can increase the overall diagnostic accuracy. METHODS: Ninety-seven patients with non-alcoholic fatty liver disease who underwent two FibroScan examinations within 6 months prior to liver biopsy were evaluated...
June 11, 2018: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29880186/successful-treatment-of-maternal-listeria-monocytogenes-bacteremia-in-the-first-trimester-of-pregnancy-a-case-report-and-literature-review
#5
Lai-Man Chan, Ho-Hsiung Lin, Sheng-Mou Hsiao
OBJECTIVE: To report detailed clinical history and management of maternal listeria infection in the first trimester. CASE REPORT: A 34-year-old woman at 11 gestational weeks was infected by Listeria monocytogenes with clinical symptoms of acute onset of a fever with subsequent headache and neck stiffness, and was treated with intravenous ampicillin at 2 g every 4 h for 3 weeks. A healthy, unaffected male baby was delivered at term. Histopathologic examination of the placenta did not reveal any chorioamnionitis, granulomas, microabscesses or vasculitis...
June 2018: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29874622/collective-cell-behavior-in-mechanosensing-of-substrate-thickness
#6
Camelia G Tusan, Yu-Hin Man, Hoda Zarkoob, David A Johnston, Orestis G Andriotis, Philipp J Thurner, Shoufeng Yang, Edward A Sander, Eileen Gentleman, Bram G Sengers, Nicholas D Evans
Extracellular matrix stiffness has a profound effect on the behavior of many cell types. Adherent cells apply contractile forces to the material on which they adhere and sense the resistance of the material to deformation-its stiffness. This is dependent on both the elastic modulus and the thickness of the material, with the corollary that single cells are able to sense underlying stiff materials through soft hydrogel materials at low (<10 μm) thicknesses. Here, we hypothesized that cohesive colonies of cells exert more force and create more hydrogel deformation than single cells, therefore enabling them to mechanosense more deeply into underlying materials than single cells...
June 5, 2018: Biophysical Journal
https://www.readbyqxmd.com/read/29803393/usefulness-of-new-subtraction-algorithm-in-estimating-degree-of-liver-fibrosis-by-calculating-extracellular-volume-fraction-obtained-from-routine-liver-ct-protocol-equilibrium-phase-data-preliminary-experience
#7
Yoshinobu Shinagawa, Keiko Sakamoto, Keisuke Sato, Emi Ito, Hiroshi Urakawa, Kengo Yoshimitsu
OBJECTIVES: To assess whether extracellular volume fraction (ECV) obtained from routine liver CT equilibrium phase data utilizing new subtraction algorithm is useful in estimating the degree of liver fibrosis. MATERIALS AND METHODS: Consecutive 41 patients, 21 men and 20 women, with chronic liver diseases who underwent quadri-phase liver CT and MR elastography within 3 months were retrospectively enrolled. Subtraction image of unenhanced from equilibrium phase (240 s) images using conventional and new algorithms were made...
June 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29799025/hepatitis-transactivator-protein-x-promotes-extracellular-matrix-modification-through-hif-lox-pathway-in-liver-cancer
#8
Aki Pui-Wah Tse, Karen Man-Fong Sze, Queenie Tsung-Kwan Shea, Elley Yung-Tuen Chiu, Felice Ho-Ching Tsang, David Kung-Chun Chiu, Misty Shuo Zhang, Derek Lee, Iris Ming-Jing Xu, Cerise Yuen-Ki Chan, Hui-Yu Koh, Chun-Ming Wong, Yong-Ping Zheng, Irene Oi-Lin Ng, Carmen Chak-Lui Wong
Hepatocellular carcinoma (HCC), accounting for 90% of primary liver cancer, is a lethal malignancy that is tightly associated with chronic hepatitis B virus (HBV) infection. HBV encodes a viral onco-protein, transactivator protein X (HBx), which interacts with proteins of hepatocytes to promote oncogenesis. Our current study focused on the interaction of HBx with a transcription factor, hypoxia-inducible factor-1α (HIF-1α), which is stabilized by low O2 condition (hypoxia) and is found to be frequently overexpressed in HCC intra-tumorally due to poor blood perfusion...
May 25, 2018: Oncogenesis
https://www.readbyqxmd.com/read/29789091/spinal-stiffness-in-prone-and-upright-postures-during-0-1-8-g-induced-by-parabolic-flight
#9
Jaap Swanenburg, Michael L Meier, Anke Langenfeld, Petra Schweinhardt, B Kim Humphreys
INTRODUCTION: The purpose of this study was to analyze posterior-to-anterior spinal stiffness in Earth, hyper-, and microgravity conditions during both prone and upright postures. CASE REPORT: During parabolic flight, the spinal stiffness of the L3 vertebra of a healthy 37-yr-old man was measured in normal Earth gravity (1.0 g), hypergravity (1.8 g), and microgravity (0.0 g) conditions induced in the prone and upright positions. Differences in spinal stiffness were significant across all three gravity conditions in the prone and upright positions...
June 1, 2018: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/29764965/effect-of-treat-to-target-strategies-aiming-at-remission-of-arterial-stiffness-in-early-rheumatoid-arthritis-a-randomized-controlled-study
#10
Lydia Ho-Pui Tam, Qing Shang, Edmund Kwok-Ming Li, Priscilla Ching-Han Wong, Kitty Yan Kwok, Emily Wai-Lin Kun, Isaac Cheuk-Wan Yim, Violet Ka-Lai Lee, Ronald Man-Lung Yip, Steve Hin-Ting Pang, Virginia Weng-Nga Lao, Queenie Wah-Yan Mak, Isaac Tsz-Ho Cheng, Xerox Sze-Lok Lau, Tena Ka-Yan Li, Tracy Yaner Zhu, Alex Pui-Wai Lee, Lai-Shan Tam
OBJECTIVE: To determine the efficacy of 2 tight control treatment strategies aiming at Simplified Disease Activity Score (SDAI) remission (SDAI ≤ 3.3) compared to 28-joint count Disease Activity Score (DAS28) remission (DAS28 < 2.6) in the prevention of arterial stiffness in patients with early rheumatoid arthritis (RA). METHODS: This was an open-label study in which 120 patients with early RA were randomized to receive 1 year of tight control treatment. Group 1 (n = 60) aimed to achieve SDAI ≤ 3...
May 15, 2018: Journal of Rheumatology
https://www.readbyqxmd.com/read/29740826/can-point-shear-wave-elastography-differentiate-focal-nodular-hyperplasia-from-hepatocellular-adenoma
#11
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...
July 2018: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/29718942/perilimbal-sclera-mechanical-properties-impact-on-intraocular-pressure-in-porcine-eyes
#12
Xiaofei Man, Elizabeth Arroyo, Martha Dunbar, David M Reed, Neil Shah, Larry Kagemann, Wonsuk Kim, Sayoko E Moroi, Alan Argento
There is extensive knowledge on the relationship of posterior scleral biomechanics and intraocular pressure (IOP) load on glaucomatous optic neuropathy; however, the role for biomechanical influence of the perilimbal scleral tissue on the aqueous humor drainage pathway, including the distal venous outflow system, and IOP regulation is not fully understood. The purpose of this work is to study the outflow characteristics of perfused porcine eyes relative to the biomechanical properties of the perilimbal sclera, the posterior sclera and the cornea...
2018: PloS One
https://www.readbyqxmd.com/read/29691999/using-biomimetically-mineralized-collagen-membranes-with-different-surface-stiffness-to-guide-regeneration-of-bone-defects
#13
Yao Wang, Ye Hua, Qian Zhang, Jie Yang, Hongjie Li, Ying Li, Man Cao, Qing Cai, Xiaoping Yang, Xu Zhang, Changyi Li
Because guided bone regeneration (GBR) process is pronouncedly affected by the micro-environment in the defect, the surface stiffness of collagen membranes as a constituent part of the micro-environment was investigated in this study. The objective of this study was to manufacture biomimetically mineralized collagen membranes with controllable surface stiffness based on biomimetic strategy and to investigate the influences of surface stiffness on GBR process. The characterization and biocompatibility of membranes were examined in vitro...
July 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29685419/successful-carotid-artery-stenting-of-a-dissected-highly-tortuous-internal-carotid-artery-after-straightening-with-a-peripheral-microguidewire
#14
Junpei Koge, Tomonori Iwata, Shigehisa Mizuta, Yukihiko Nakamura, Shun-Ichi Matsumoto, Takeshi Yamada
Endovascular reconstruction for carotid artery dissection (CAD) involving a highly tortuous segment of the cervical internal carotid artery (ICA) is challenging because the tortuous ICA may preclude navigation of large-profile carotid stents. Successful recanalization using low-profile neurostents has been reported in small case series only. We herein describe two patients with CAD of a tortuous segment who were successfully treated with large-profile carotid stents after straightening the ICA with a stiff peripheral microguidewire...
July 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29619179/from-cellulose-to-kerogen-molecular-simulation-of-a-geological-process
#15
Lea Atmani, Christophe Bichara, Roland J-M Pellenq, Henri Van Damme, Adri C T van Duin, Zamaan Raza, Lionel A Truflandier, Amaël Obliger, Paul G Kralert, Franz J Ulm, Jean-Marc Leyssale
The process by which organic matter decomposes deep underground to form petroleum and its underlying kerogen matrix has so far remained a no man's land to theoreticians, largely because of the geological (Myears) timescale associated with the process. Using reactive molecular dynamics and an accelerated simulation framework, the replica exchange molecular dynamics method, we simulate the full transformation of cellulose into kerogen and its associated fluid phase under prevailing geological conditions. We observe in sequence the fragmentation of the cellulose crystal and production of water, the development of an unsaturated aliphatic macromolecular phase and its aromatization...
December 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/29615430/diffuse-skin-thickening-myalgias-and-joint-stiffness-in-a-41-year-old-man
#16
(no author information available yet)
No abstract text is available yet for this article.
April 3, 2018: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/29562893/no-difference-in-the-functional-improvements-between-unilateral-and-bilateral-total-knee-replacements
#17
Yu-Hao Huang, Chin Lin, Jia-Hwa Yang, Leou-Chyr Lin, Chih-Yuan Mou, Kwo-Tsao Chiang, Man-Gang Lee, Hsien-Feng Chang, Hsueh-Lu Chang, Wen Su, Shih-Jen Yeh, Hung Chang, Chih-Chien Wang, Sui-Lung Su
BACKGROUND: Differences between staged bilateral total knee replacement (TKR) and simultaneous bilateral TKR have been investigated, but few studies have investigated differences in the functional improvements resulting from these methods. Therefore, this study investigates the different functional improvements between staged bilateral total knee TKR and simultaneous bilateral TKR. METHODS: Among 144 potential bilateral TKR patients who were included in this study, 93 (64...
March 21, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29559729/quantifying-the-impact-of-simple-dna-parameters-on-the-cyclization-j-factor-for-single-basepair-addition-families
#18
Yunjin Tong, Robert S Manning
We use Monte Carlo simulation to quantify the change in cyclization J-factor within a dramatically simplified model of DNA that involves parameters for uniform stiffnesses, intrinsic twist, and intrinsic bending (including nonplanar bending). Plots of J versus DNA length over multiple periods of helical repeat are fit to a simple functional form in order to project the behavior of J over a broad range of these model parameters. In some instances, this process allows us to find families of DNA molecules (within our model) with quite different material properties, but very similar plots of J versus length, so similar as to likely to be indistinguishable by experiments...
March 20, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29519969/-an-autopsy-case-of-meningoencephalitis-and-cerebral-infarction-that-developed-with-ramsay-hunt-syndrome-and-disseminated-herpes-zoster
#19
Nobuo Yamashiro, Takamura Nagasaka, Naoki Ooishi, Mai Tsuchiya, Ryusuke Takaki, Fumikazu Kobayashi, Kazumasa Shindo, Yoshihisa Takiyama
We report here the clinical presentation and subsequent autopsy of a 90-year-old man who developed small papules with pain and swelling in his right ear. On admission, he exhibited right facial nerve paralysis, neck stiffness and Kernig's sign. The cell count was elevated and the varicella-zoster virus-PCR was positive in the CSF. Brain magnetic resonance imaging showed hyperintense lesions in the left pons and left temporal lobe, in FLAIR images. We diagnosed the patient with Ramsay Hunt syndrome and meningoencephalitis due to varicella-zoster virus...
March 2018: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/29507157/diffuse-skin-thickening-myalgias-and-joint-stiffness-in-a-41-year-old-man
#20
Soumya Chatterjee, Richard A Prayson
No abstract text is available yet for this article.
March 5, 2018: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
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