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https://www.readbyqxmd.com/read/29038020/the-ca-2-camkk2-axis-mediates-the-telbivudine-induces-upregulation-of-creatine-kinase-implications-for-mechanism-of-antiviral-nucleoside-analogs-side-effect
#1
Long Jianfei, Wang Min, Ma Chunlai, Chen Bicui, Zhang Jiming, Wang Bin
Telbivudine (LdT), a widely prescribed anti-hepatitis B virus (HBV) drug for the treatment of chronic Hepatitis B (CHB), causes adverse reactions ranging from creatine kinase (CK) elevation to myopathy. The purpose of this study was to explore the mechanism(s) of LdT induced CK elevation. The effects of LdT on mitochondrial morphology and proteins (TK2 and β-actin), oxidative stress, intracellular Ca(2+) levels, Ca(2+)-related signaling pathway (CaMKK2/AMPK), and Ca(2+)-related biomarkers such as superoxide dismutase (SOD) and malondialdehyde (MDA) were assessed in human skeletal muscle cells (HSKMCs)...
October 13, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29029959/ldt-classification-and-therapeutic-strategy-of-congenital-body-wall-defects
#2
Shun Wu, Ke Guo, Peng Xiao, Jiaming Sun
BACKGROUND: Repairing body wall defects is a critical step in the treatment of some congenital deformities, and this procedure may need the help from plastic surgeons. Although there are many articles about congenital deformities, body wall defects of these malformations are rarely studied as independent targets. METHODS: In this article, the authors present an LDT classification for congenital body wall defects according to the position of the defects, the tissue layers involved, and the surgical urgency, each of which is represented by letters L, D, and T, respectively...
September 19, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29020844/nucleoside-nucleotide-analogues-in-the-treatment-of-chronic-hepatitis-b-infection-during-pregnancy-a-systematic-review
#3
Soheil Tavakolpour, Mohammad Darvishi, Hajar Sadat Mirsafaei, Mojtaba Ghasemiadl
BACKGROUND: Women of childbearing age who have developed chronic hepatitis B (CHB) infection, especially HBeAg-positive highly viraemic pregnant women, are largely responsible for the familial transmission of the infection. Therefore, choosing the most effective and safest antiviral medications to manage pregnant CHB patients is of crucial importance. MATERIALS AND METHODS: The PubMed and Scopus databases were searched through September 2017, for all the journal articles possessing original results regarding treatment of CHB pregnant women with any nucleos(t)ide analogue (NA) therapies, including lamivudine (LAM), adefovir (ADV), entecavir (ETV), telbivudine (LdT), and tenofovir (TDF)...
October 11, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28945375/new-compressed-chalcopyrite-like-li2bam-iv-q4-m-iv-ge-sn-q-s-se-promising-infrared-nonlinear-optical-materials
#4
Kui Wu, Bingbing Zhang, Zhihua Yang, Shilie Pan
Chalcopyrite-type AgGaQ2 (Q = S, Se) and ZnGeP2 are the main commercial infrared nonlinear optical (IR NLO) crystals. Unfortunately, performance defects including low laser damage threshold (LDT), harmful two-photon absorption (TPA), or small birefringence limit their application. With this background, four new compressed chalcopyrite-like IR NLO materials Li2BaM(IV)Q4 (M(IV) = Ge, Sn; Q = S, Se) were successfully synthesized with the typical AgGaQ2 as templates. Remarkably, Li2BaGeS4 and Li2BaSnS4 not only maintain the good NLO responses (0...
September 27, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28944072/close-observation-versus-upfront-treatment-in-hepatocellular-carcinoma-are-the-exception-points-worth-the-risk
#5
Danielle M Tholey, Ben Hornung, Charles K Enestvedt, Yiyi Chen, Willscott S Naugler, Khashayar Farsad, Nima Nabavizadeh, Barry Schlansky, Joseph Ahn, Janice H Jou
INTRODUCTION: To assess the outcomes of immediate LDT versus observation strategies for T1 hepatocellular carcinoma (HCC) with respect to progression beyond Milan and survival. METHOD: T1 HCCs were retrospectively reviewed from a multidisciplinary tumour board database between September 2007 and May 2015. In the observation group, T1 lesions were observed until the tumour grew to meet T2 criteria (=2 cm). The treatment group consisted of T1 lesions treated at diagnosis with liver directed therapy (LDT)...
2017: BMJ Open Gastroenterology
https://www.readbyqxmd.com/read/28917436/comparison-of-the-loop-technique-with-incision-and-drainage-for-soft-tissue-abscesses-a-systematic-review-and-meta-analysis
#6
REVIEW
Michael Gottlieb, Gary D Peksa
INTRODUCTION: Skin and soft tissue infections are a common presentation to the emergency department. Traditional management of abscesses involves a linear incision through the center of the abscess with packing placed. The loop drainage technique (LDT) is an alternate approach that may reduce pain and scarring, as well as decrease the number of follow up visits needed. This systematic review and meta-analysis aimed to compare the efficacy of the LDT with conventional incision and drainage (CID) in the treatment of soft tissue abscesses...
September 10, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28893594/nitric-oxide-in-the-medial-prefrontal-cortex-contributes-to-the-acquisition-of-cocaine-place-preference-and-synaptic-plasticity-in-the-laterodorsal-tegmental-nucleus
#7
Hironori Kamii, Naofumi Taoka, Masabumi Minami, Katsuyuki Kaneda
Nitric oxide (NO), a gaseous neurotransmitter, is involved in a variety of brain functions, including drug addiction. Although previous studies have suggested that NO plays an important role in the development of cocaine addiction, the brain region(s) in which NO acts and how it contributes to cocaine addiction remain unclear. In this study, we examined these issues using a cocaine-induced conditioned place preference (CPP) paradigm and ex vivo electrophysiological recordings in rats. Specifically, we focused on the medial prefrontal cortex (mPFC) and laterodorsal tegmental nucleus (LDT), brain regions associated with cocaine CPP development and cocaine-induced plasticity...
September 8, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28868996/comparison-of-the-luminex-nxtag-respiratory-pathogen-panel-and-a-multiplex-in-house-real-time-pcr-panel-for-the-detection-of-respiratory-viruses-in-symptomatic-patients
#8
Andrew David Sails, Gary Eltringham, Manoj Valappil, Sheila Waugh, David Saunders
PURPOSE: To evaluate the Luminex NxTAG respiratory pathogen panel (NxTAG RPP) for the detection of respiratory viruses in clinical samples from patients with the symptoms of respiratory infection. METHODOLOGY: The NxTAG RPP was compared to an in-house multiplex real-time PCR panel (LDT) for the detection of respiratory viruses in 314 clinical samples from patients with the symptoms of respiratory infection. RESULTS: Thirty-one samples were negative in both tests and 193 samples contained a single virus that was detected in both tests...
September 4, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28837419/impairments-in-laterodorsal-tegmentum-to-vta-projections-underlie-glucocorticoid-triggered-reward-deficits
#9
Bárbara Coimbra, Carina Soares-Cunha, Sónia Borges, Nivaldo Ap Vasconcelos, Nuno Sousa, Ana João Rodrigues
Ventral tegmental area (VTA) activity is critical for reward/reinforcement and is tightly modulated by the laterodorsal tegmentum (LDT). In utero exposure to glucocorticoids (iuGC) triggers prominent motivation deficits but nothing is known about the impact of this exposure in the LDT-VTA circuit. We show that iuGC-rats have long-lasting changes in cholinergic markers in the LDT, together with a decrease in LDT basal neuronal activity. Interestingly, upon LDT stimulation, iuGC animals present a decrease in the magnitude of excitation and an increase in VTA inhibition, as a result of a shift in the type of cells that respond to the stimulus...
August 24, 2017: ELife
https://www.readbyqxmd.com/read/28771597/development-and-validation-of-a-luminex-assay-for-detection-of-a-predictive-biomarker-for-prostvac-vf-therapy
#10
Julie L Lucas, Erin A Tacheny, Allison Ferris, Michelle Galusha, Apurva K Srivastava, Aniruddha Ganguly, P Mickey Williams, Michael C Sachs, Magdalena Thurin, James V Tricoli, Winnie Ricker, Jeffrey C Gildersleeve
Cancer therapies can provide substantially improved survival in some patients while other seemingly similar patients receive little or no benefit. Strategies to identify patients likely to respond well to a given therapy could significantly improve health care outcomes by maximizing clinical benefits while reducing toxicities and adverse effects. Using a glycan microarray assay, we recently reported that pretreatment serum levels of IgM specific to blood group A trisaccharide (BG-Atri) correlate positively with overall survival of cancer patients on PROSTVAC-VF therapy...
2017: PloS One
https://www.readbyqxmd.com/read/28704190/modulating-effects-of-cholecalciferol-treatment-on-estrogen-deficiency-induced-anxiety-like-behavior-of-adult-female-rats
#11
Julia Fedotova, Daria Zarembo, Jozef Dragasek, Martin Caprnda, Peter Kruzliak, Tatyana Dudnichenko
BACKGROUND: Vitamin D can be one of the candidate substances that are used as additional supplementation in the treatment of anxiety-related disorders in women with estrogen imbalance. MATERIALS AND METHODS: The aim of the present study was to examine the effects of chronic cholecalciferol administration (1.0, 2.5 or 5.0 mg/kg/day, s.c.) on the anxiety-like behavior and monoamines levels in the rat hippocampus following ovariectomy in female rats. Cholecalciferol was given to ovariectomized (OVX) rats and OVX rats treated with 17β-estradiol (17β-E2, 0...
June 1, 2017: Folia Medica
https://www.readbyqxmd.com/read/28687634/laboratory-developed-tests-a-legislative-and-regulatory-review
#12
REVIEW
Jonathan R Genzen, Jeffrey S Mohlman, Jerry L Lynch, Michael W Squires, Ronald L Weiss
BACKGROUND: Twenty-five years ago, the Food and Drug Administration (FDA) asserted in a draft document that "home brew" tests-now commonly referred to as laboratory-developed tests (LDTs)-are subject to the same regulatory oversight as other in vitro diagnostics (IVDs)(4). In 2010, the FDA began work on developing a proposed framework for future LDT oversight. Released in 2014, the draft guidance sparked an intense debate over potential LDT regulation. While the proposed guidance has not been implemented, many questions regarding LDT oversight remain unresolved...
October 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28685879/agga2-ps6-a-new-mid-infrared-nonlinear-optical-material-with-a-high-laser-damage-threshold-and-a-large-second-harmonic-generation-response
#13
Jiang-He Feng, Chun-Li Hu, Xiang Xu, Bing-Xuan Li, Ming-Jian Zhang, Jiang-Gao Mao
To develop new mid-infrared (MIR) nonlinear optical (NLO) materials, which can overcome the low laser damage threshold (LDT) of the commercial MIR-NLO crystals (AgGaS2 , AgGaSe2 and ZnGeP2 ) and simultaneously keep the large NLO susceptibility, is necessary for high-power MIR laser frequency conversion technology. To improve the LDT, a new strategy of increasing lattice stability was adopted. Here, the strongly covalent structural unit of the PS4 tetrahedron was introduced into AgGaS2 (AGS), and that led to the isolation of the first compound in Ag(I) -Ga(III) -P(V) -S system, namely, AgGa2 PS6 (Cc)...
July 7, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28670195/cortisol-response-to-low-dose-1-%C3%A2%C2%B5g-acth-stimulation-for-the-prediction-of-outcome-in-patients-with-systemic-inflammatory-response-syndrome
#14
Jelica Bjekić-Macut, Vojislav Radosavljević, Zoran Andrić, Dušan Ilić, Olivera Stanojlović, Danijela Vojnović Milutinović, Ivana Božić Antić, Marija Zdravković, Saša Hinić, Djuro Macut, Miloš Žarković
BACKGROUND: Systemic inflammatory response syndrome (SIRS) changes cortisol dynamics and indicates dissociation between the adrenal cortex and the hypothalamo-pituitary unit. The aim of this study was to assess the cortisol response after stimulation with ACTH1-24 in patients with SIRS at admission to the Respiratory Intensive Care Unit (RICU) and seven days later. METHODS: Fifty-four subjects were included in the study, and SIRS was defined according to the Consensus Conference criteria from 1992...
October 2016: Journal of Medical Biochemistry
https://www.readbyqxmd.com/read/28668402/comparative-study-of-post-transplant-outcomes-in-hepatocellular-carcinoma-patients-treated-with-chemoembolization-or-radioembolization
#15
Ahmed Gabr, Nadine Abouchaleh, Rehan Ali, Michael Vouche, Rohi Atassi, Khairuddin Memon, Ali Al Asadi, Talia Baker, Juan Carlos Caicedo, Kush Desai, Jonathan Fryer, Ryan Hickey, Michael Abeccassis, Ali Habib, Elias Hohlastos, Daniel Ganger, Laura Kulik, Robert J Lewandowski, Ahsun Riaz, Riad Salem
PURPOSE: To analyze long-term outcomes in patients bridged/downstaged to orthotopic liver transplantation (OLT) by transarterial chemoembolization (TACE) or yttrium-90 radioembolization (Y90) for hepatocellular carcinoma (HCC). METHODS: 172 HCC patients who underwent OLT after being treated with transarterial liver-directed therapies (LDTs) (Y90: 93; TACE: 79) were identified. Pre-LDT and pre-OLT clinical/imaging/laboratory characteristics including United Network for Organ Sharing (UNOS) staging and alpha-fetoprotein values (AFP) were tabulated...
August 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28656162/evaluation-of-changes-in-the-tibiotalar-joint-after-high-tibial-osteotomy
#16
Seyed Morteza Kazemi, Mohamad Qoreishi, Ehsan Behboudi, Alireza Manafi, Seyed Kamyar Kazemi
BACKGROUND: There are limited studies regarding the effects of high tibial osteotomy (HTO) on other areas of lower extremity. In current study, we investigated the changes of tibiotalar joint following HTO. METHODS: A total of 39 patients with genu varum requiring HTO were enrolled in this before and after study. The genu varus, joint diversion (JDA), lateral distal tibial (LDTA) and lateral distal tibial-ground surface (LDT-GSA) angles were measured before the operation and compared with 6 months after the surgery...
May 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28655610/neuropeptide-s-nps-is-a-neuropeptide-with-cellular-actions-in-arousal-and-anxiety-related-nuclei-functional-implications-for-effects-of-nps-on-wakefulness-and-mood
#17
Vincenzo Roncacè, Filip Souza Polli, Minella Zojicic, Kristi A Kohlmeier
Neuropeptide S (NPS) is a peptide recently recognized to be present in the CNS, and believed to play a role in vigilance and mood control, as behavioral studies have shown it promotes arousal and has an anxiolytic effect. Although NPS precursor is found in very few neurons, NPS positive fibers are present throughout the brain stem. Given the behavioral actions of this peptide and the wide innervation pattern, we examined the cellular effects of NPS within two brain stem nuclei known to play a critical role in anxiety and arousal: the dorsal raphe (DR) and laterodorsal tegmentum (LDT)...
June 24, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28639033/functional-restoration-of-cd56-bright-nk-cells-facilitates-immune-control-via-il-15-and-nkg2d-in-patients-under-antiviral-treatment-for-chronic-hepatitis-b
#18
Tao Chen, Lin Zhu, Aichao Shi, Lin Ding, Xiaoping Zhang, Zhenmin Tan, Wei Guo, Weiming Yan, Meifang Han, Jidong Jia, Xiaoping Luo, Detlef Schuppan, Qin Ning
BACKGROUND AND AIMS: Hepatitis B virus (HBV) is intrinsically immunogenic, with long-lasting immune control in many patients. However, the mechanisms and key cell types underlying effective immune control are incompletely understood. METHODS: We studied the restoration of natural killer (NK) cell numbers and function post antiviral treatment in 52 hepatitis B e antigen (HBeAg)-positive chronic hepatitis B (CHB) patients who received telbivudine (LdT) for 48 weeks...
June 20, 2017: Hepatology International
https://www.readbyqxmd.com/read/28614010/diagnostic-accuracy-of-basal-cortisol-level-to-predict-adrenal-insufficiency-in-cosyntropin-testing-results-from-an-observational-cohort-study-with-804-patients
#19
Tristan Struja, Leonie Briner, Aline Meier, Alexander Kutz, Esther Mundwiler, Andreas Huber, Beat Mueller, Luca Bernasconi, Philipp Schuetz
OBJECTIVE: Adrenocorticotrophic hormone (ACTH) stimulation testing is the current standard for assessing primary and secondary adrenal insufficiency (AI). We aimed to investigate the value of basal cortisol level for prediction of AI. METHODS: We retrospectively analyzed 804 consecutive patients who had high-dose (250 μg, HDT) or low-dose (1 μg, LDT) ACTH testing as part of their diagnostic work-up. Site-specific cut-off levels for AI were <550 in and <500 nmol/L in HDT and LDT, respectively...
August 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28596834/acute-cocaine-exposure-elicits-rises-in-calcium-in-arousal-related-laterodorsal-tegmental-neurons
#20
Mads Ødum Lambert, Theis Højland Ipsen, Kristi Anne Kohlmeier
Cocaine has strong reinforcing properties, which underlie its high addiction potential. Reinforcement of use of addictive drugs is associated with rises in dopamine (DA) in mesoaccumbal circuitry. Excitatory afferent input to mesoaccumbal circuitry sources from the laterodorsal tegmental nucleus (LDT). Chronic, systemic cocaine exposure has been shown to have cellular effects on LDT cells, but acute actions of local application have never been demonstrated. Using calcium imaging, we show that acute application of cocaine to mouse brain slices induces calcium spiking in cells of the LDT...
February 2017: Pharmacology Research & Perspectives
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