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https://www.readbyqxmd.com/read/28644939/an-economic-analysis-of-mac-versus-walant-a-trigger-finger-release-surgery-case-study
#1
Jason L Codding, Suneel B Bhat, Asif M Ilyas
BACKGROUND: There has been recent interest in wide awake hand surgery, also referred to as "wide awake local anesthesia with no tourniquet" (WALANT) surgery. Using a model of single trigger finger release (TFR) surgery, a hypothesis was made that WALANT would result in decreased hospital time and cost than patients receiving sedation with monitored anesthetic care (MAC). METHODS: Consecutive cases of single TFR surgery with MAC were compared with WALANT. All surgeries were performed in the same manner, at the same facility, and by the same surgeon...
July 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28613135/pupillary-responses-to-words-that-convey-a-sense-of-brightness-or-darkness
#2
Sebastiaan Mathôt, Jonathan Grainger, Kristof Strijkers
Theories about embodiment of language hold that when you process a word's meaning, you automatically simulate associated sensory input (e.g., perception of brightness when you process lamp) and prepare associated actions (e.g., finger movements when you process typing). To test this latter prediction, we measured pupillary responses to single words that conveyed a sense of brightness (e.g., day) or darkness (e.g., night) or were neutral (e.g., house). We found that pupils were largest for words conveying darkness, of intermediate size for neutral words, and smallest for words conveying brightness...
June 1, 2017: Psychological Science
https://www.readbyqxmd.com/read/28604746/oncogenic-k-ras-upregulates-itga6-expression-via-fosl1-to-induce-anoikis-resistance-and-synergizes-with-%C3%AE-v-class-integrins-to-promote-emt
#3
K Zhang, S-M Myllymäki, P Gao, R Devarajan, V Kytölä, M Nykter, G-H Wei, A Manninen
In many cancer types, integrin-mediated signaling regulates proliferation, survival and invasion of tumorigenic cells. However, it is still unclear how integrins crosstalk with oncogenes to regulate tumorigenesis and metastasis. Here we show that oncogenic K-Ras(V12) upregulates α6-integrin expression in Madin-Darby canine kidney (MDCK) cells via activation of the mitogen-activated protein kinase/extracellular signal-regulated kinase (ERK)/Fos-related antigen 1-signaling cascade. Activated α6-integrins promoted metastatic capacity and anoikis resistance, and led to perturbed growth of MDCK cysts...
June 12, 2017: Oncogene
https://www.readbyqxmd.com/read/28591598/mechanism-of-ntp-binding-to-the-active-site-of-t7-rna-polymerase-revealed-by-free-energy-simulation
#4
Shaogui Wu, Laicai Li, Quan Li
In genetic transcription, molecular dynamic details and energetics of NTP binding to the active site of RNA polymerase (RNAP) are poorly understood. In this article, we investigated the NTP binding process in T7 RNAP using all-atom MD simulation combined with the umbrella sampling technique. Based on our simulations, a two-step mechanism was proposed to explain NTP binding: first, substrate NTP in aqueous solution, which carries a magnesium ion, diffuses through a secondary channel of RNAP to attain a pore region, where it undergoes conformational changes to give a correct orientation; next, the NTP establishes initial basepairing contacts with the template nucleoside (TN)...
June 6, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28584306/downregulation-of-uhrf1-increases-tumor-malignancy-by-activating-the-cxcr4-akt-jnk-il-6-snail-signaling-axis-in-hepatocellular-carcinoma-cells
#5
Ji-Hyun Kim, Jae-Woong Shim, Da-Young Eum, Sung Dae Kim, Si Ho Choi, Kwangmo Yang, Kyu Heo, Moon-Taek Park
UHRF1 (ubiquitin-like, with PHD and RING finger domains 1) plays a crucial role in DNA methylation, chromatin remodeling and gene expression and is aberrantly upregulated in various types of human cancers. However, the precise role of UHRF1 in cancer remains controversial. In this study, we observed that hypoxia-induced downregulation of UHRF1 contributes to the induction of the epithelial-mesenchymal transition (EMT) in hepatocellular carcinoma cells. By negatively modulating UHRF1 expression, we further showed that UHRF1 deficiency in itself is sufficient to increase the migratory and invasive properties of cells via inducing EMT, increasing the tumorigenic capacity of cells and leading to the expansion of cancer stem-like cells...
June 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28581456/epigenetic-silencing-of-irf1-dysregulates-type-iii-interferon-responses-to-respiratory-virus-infection-in-epithelial-to-mesenchymal-transition
#6
Jun Yang, Bing Tian, Hong Sun, Roberto P Garofalo, Allan R Brasier
Chronic oxidative injury produced by airway disease triggers a transforming growth factor-β (TGF-β)-mediated epigenetic reprogramming known as the epithelial-mesenchymal transition (EMT). We observe that EMT silences protective mucosal interferon (IFN)-I and III production associated with enhanced rhinovirus (RV) and respiratory syncytial virus (RSV) replication. Mesenchymal transitioned cells are defective in inducible interferon regulatory factor 1 (IRF1) expression by occluding RelA and IRF3 access to the promoter...
June 5, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/28577024/voluntary-movement-reverses-the-effect-of-cathodal-transcranial-direct-current-stimulation-tdcs-on-corticomotor-excitability
#7
Esra Erkoc Ataoglu, Hale Batur Caglayan, Bülent Cengiz
Motor cortex activity level is a critical part of the effect of transcranial direct current stimulation (tDCS) on corticomotor excitability. Based on homeostatic plasticity, the state of the stimulated cortical area influences the direction of neuroplastic changes induced by stimuli. Owing to homeostatic plasticity, cathodal tDCS (c-tDCS) would likely have a pronounced inhibitory effect on corticomotor excitability during a motor task, compared with the resting state. To test this hypothesis, we detected motor evoked potential (MEP) amplitude changes before and during c-tDCS with voluntary movement...
June 2, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28576107/experimental-analysis-of-density-fingering-instability-modified-by-precipitation
#8
L Binda, C El Hasi, A Zalts, A D'Onofrio
We analyze the effect of precipitate formation on the development of density induced hydrodynamic instabilities. In this case, the precipitate is BaCO3, obtained by reaction of CO2 with aqueous BaCl2. CO2(g) dissolution increases the local density of the aqueous phase, triggering Rayleigh-Taylor instabilities and BaCO3 formation. It was observed that at first the precipitate was formed at the finger front. As the particles became bigger, they began to fall down from the front. These particles were used as tracers using PIV technique to visualize the particle streamlines and to obtain the velocity of that movement...
May 2017: Chaos
https://www.readbyqxmd.com/read/28567434/trigger-finger-at-wrist-caused-by-degenerative-changes-of-the-flexor-tendon-sheath-and-carpal-tunnel-syndrome-a-case-report
#9
Qiao Wang, Jiang Kian Hong Jackson, Meng Ai Png
Trigger finger at wrist is a rare condition. Symptoms include finger triggering, snapping or catching at the wrist level. Carpal tunnel syndrome and median nerve compression neuropathy are almost always associated. We reported one case which was caused by degenerative changes of the flexor tendon sheath and carpal tunnel syndrome.
2017: Case Reports in Plastic Surgery & Hand Surgery
https://www.readbyqxmd.com/read/28556529/a-multicenter-cross-sectional-study-for-bone-articular-lesions-associated-with-dialysis-related-amyloidosis-in-japan
#10
Shinichi Nishi, Junichi Hoshino, Suguru Yamamoto, Shunsuke Goto, Hideki Fuji, Yoshifumi Ubara, Yoshihiro Motomiya, Hiroyuki Morita, Kenmei Takaichi, Kunihiro Yamagata, Takashi Shigematsu, Mitsuharu Ueda, Yukio Ando
AIM: Dialysis-related amyloidosis (DRA) exhibits multiple bone-articular lesions, such as carpal tunnel syndrome (CTS), trigger finger (TF), spinal canal stenosis (SCS), destructive spondyloarthropathy (DSA), bone cysts, and joint pains. DRA leads to a decrease in activities of daily living (ADL). We investigated the initiation of CTS and TF, and evaluated the relationship between walking disturbances and bone-articular lesions or joint pains. METHODS: A multicenter cross-sectional study was performed...
May 26, 2017: Nephrology
https://www.readbyqxmd.com/read/28549895/needle-free-jet-lidocaine-administration-for-preinjection-anesthesia-in-trigger-finger-injection-a%C3%A2-randomized-controlled-trial
#11
Brandon E Earp, Spencer J Stanbury, Ariana N Mora, Philip E Blazar
PURPOSE: To evaluate the efficacy of needle-free jet lidocaine (J-tip) administration for pain reduction in trigger finger corticosteroid injection compared with simultaneous lidocaine injection with corticosteroid. METHODS: A prospective randomized clinical trial was performed in which patients received either 0.25 mL of 2% lidocaine administered by J-tip just prior to 0.5 mL of corticosteroid injection by needle or 0.5 mL of 1% lidocaine and 0.5 mL of corticosteroid administered simultaneously through a needle for the treatment of trigger finger...
May 24, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28546512/wnt5a-promotes-frizzled-4-signalosome-assembly-by-stabilizing-cysteine-rich-domain-dimerization
#12
Zachary J DeBruine, Jiyuan Ke, Kaleeckal G Harikumar, Xin Gu, Peter Borowsky, Bart O Williams, Wenqing Xu, Laurence J Miller, H Eric Xu, Karsten Melcher
Wnt/β-catenin signaling is activated when extracellular Wnt ligands bind Frizzled (FZD) receptors at the cell membrane. Wnts bind FZD cysteine-rich domains (CRDs) with high affinity through a palmitoylated N-terminal "thumb" and a disulfide-stabilized C-terminal "index finger," yet how these binding events trigger receptor activation and intracellular signaling remains unclear. Here we report the crystal structure of the Frizzled-4 (FZD4) CRD in complex with palmitoleic acid, which reveals a CRD tetramer consisting of two cross-braced CRD dimers...
May 1, 2017: Genes & Development
https://www.readbyqxmd.com/read/28539513/evidence-for-parallel-evolution-of-a-gene-involved-in-the-regulation-of-spermatogenesis
#13
Xin Rui Wang, Li Bin Ling, Hsiao Han Huang, Jau Jyun Lin, Sebastian D Fugmann, Shu Yuan Yang
PHD finger protein 7 (Phf7) is a male germline specific gene in Drosophila melanogaster that can trigger the male germline sexual fate and regulate spermatogenesis, and its human homologue can rescue fecundity defects in male flies lacking this gene. These findings prompted us to investigate conservation of reproductive strategies through studying the evolutionary origin of this gene. We find that Phf7 is present only in select species including mammals and some insects, whereas the closely related G2/M-phase specific E3 ubiquitin protein ligase (G2e3) is in the genome of most metazoans...
May 31, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28538530/clinical-assessment-and-diagnostics-of-patients-with-hand-disorders-a-case-study-approach
#14
Mabel Qi He Leow, Rebecca Qian Ru Lim, Shian Chao Tay
Clinical assessment of the hand is important for diagnosing underlying hand disorders. Using a case study approach, the clinical assessment for three disorders of the hands is presented: trigger finger (stenosing tenosynovitis), carpal tunnel syndrome, and ulnar-sided wrist injury (styloid impingement). We assess the annular one pulley and finger range of motion for patients with trigger finger. To diagnose for carpal tunnel syndrome, assessment for Tinel's sign, Phalen's sign, abductor pollicis brevis muscle bulk, two-point discrimination, and obtaining a nerve conduction study are performed...
May 2017: Orthopaedic Nursing
https://www.readbyqxmd.com/read/28537256/design-of-synthetic-epigenetic-circuits-featuring-memory-effects-and-reversible-switching-based-on-dna-methylation
#15
Johannes A H Maier, Raphael Möhrle, Albert Jeltsch
Epigenetic systems store information in DNA methylation patterns in a durable but reversible manner, but have not been regularly used in synthetic biology. Here, we designed synthetic epigenetic memory systems using DNA methylation sensitive engineered zinc finger proteins to repress a memory operon comprising the CcrM methyltransferase and a reporter. Triggering by heat, nutrients, ultraviolet irradiation or DNA damaging compounds induces CcrM expression and DNA methylation. In the induced on-state, methylation in the operator of the memory operon prevents zinc finger protein binding leading to positive feedback and permanent activation...
May 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/28530766/right-ring-finger-volar-mass-in-a-14-year-old-boy
#16
Mary P Fox, Jack E McKay, Randall D Craver, Nicholas D Pappas
A trigger digit is relatively uncommon in adolescents and often has a different etiology in that age group vs adults. In the pediatric population, trigger digits frequently arise from a variety of underlying anatomic situations, including thickening of the flexor digitorum superficialis or flexor digitorum profundus tendons, an abnormal relationship between the flexor digitorum superficialis and flexor digitorum profundus tendons, a proximal flexor digitorum superficialis decussation, or constriction of the pulleys...
May 20, 2017: Orthopedics
https://www.readbyqxmd.com/read/28506168/trigger-finger-an-atraumatic-medical-phenomenon
#17
Angelo V Vasiliadis, Iraklis Itsiopoulos
Trigger finger is a mechanical problem with many etiological factors as possible causes, such as diabetes mellitus, carpal tunnel syndrome and repetitive finger movements. Although it can afflict anyone, it is much commoner in middle-aged women than men and the most commonly involved digit is reported to be the thumb. The diagnosis is mainly based on clinical symptoms during examination and first-line treatment is conservative with splinting and corticosteroid injections. Surgical open release is the "gold standard" of trigger finger treatment because it allows more careful inspection of the surgical area and is highly effective with low complication rates...
June 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28506159/progression-from-injection-to-surgery-for-trigger-finger-a-statistical-analysis
#18
Hideyuki Ota, Katsuyuki Iwatsuki, Shigeru Kurimoto, Koji Iida, Hitoshi Hirata
BACKGROUND: The purpose of this study was to identify predictive factors of poor response to intra-flexoral sheath corticosteroid injection, as well as to identify factors associated with patients' decisions to undergo surgical treatment. METHODS: Data from 112 patients who received steroid injection treatment for trigger finger were reviewed retrospectively. Logistic regression was used to assess the prognostic value of factors assumed to affect prognosis (age, sex, underlying disease, history of illness, presence of carpal tunnel syndrome, multiple digit involvement, and pre- and post-operative disability scores)...
June 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28455959/ovol2-antagonizes-tgf-%C3%AE-signaling-to-regulate-epithelial-to-mesenchymal-transition-during-mammary-tumor-metastasis
#19
Rong-Si Wu, Jing-Jing Hong, Jia-Fa Wu, Shen Yan, Di Wu, Na Liu, Qing-Feng Liu, Qiu-Wan Wu, Yuan-Yuan Xie, Yun-Jia Liu, Zhong-Zheng Zheng, Err-Cheng Chan, Zhi-Ming Zhang, Bo-An Li
Great progress has been achieved in the study of the role of TGF-β signaling in triggering epithelial-mesenchymal transition (EMT) in a variety of cancers; however, the regulation of TGF-β signaling during EMT in mammary tumor metastasis has not been completely defined. In the present study, we demonstrated that OVOL2, a zinc finger transcription factor, inhibits TGF-β signaling-induced EMT in mouse and human mammary tumor cells, as well as in mouse tumor models. Data from the Oncomine databases indicated a strong negative relationship between OVOL2 expression and breast cancer progression...
June 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28454779/congenital-extensor-tendon-dislocation-causing-pseudotriggering-of-the-little-finger
#20
Meriç Çırpar, Bülent Dağlar, Birhan Oktaş
The main complaints in extensor tendon dislocations are pain, swelling, sense of discomfort, snapping and difficulty in writing and forceful flexion. However, congenital extensor tendon subluxations may present with triggering of the fingers due to tendon dislocations. Unnecessary A1 pulley release may be performed for pseudotriggerring with unsuccessful results. Here, we report an unusual case of congenital extensor tendon subluxation of multiple digits with triggering of the left little finger and aim to attract notice to pseudotriggering of the digits due to tendon dislocations...
April 25, 2017: Acta Orthopaedica et Traumatologica Turcica
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