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S Alkan, M Lewin, N Demonceau
No abstract text is available yet for this article.
October 2018: Revue Médicale de Liège
Yuji Masuda, Satoshi Mitsuyuki, Rie Kanao, Asami Hishiki, Hiroshi Hashimoto, Chikahide Masutani
DNA-damage tolerance protects cells via at least two sub-pathways regulated by proliferating cell nuclear antigen (PCNA) ubiquitination in eukaryotes: translesion DNA synthesis (TLS) and template switching (TS), which are stimulated by mono- and polyubiquitination, respectively. However, how cells choose between the two pathways remains unclear. The regulation of ubiquitin ligases catalyzing polyubiquitination, such as helicase-like transcription factor (HLTF), could play a role in the choice of pathway. Here, we demonstrate that the ligase activity of HLTF is stimulated by double-stranded DNA via HIRAN domain-dependent recruitment to stalled primer ends...
October 18, 2018: Nucleic Acids Research
A P Kovalenko, V K Misikov
AIM: To develop and test a method of examination of patients with lower limb spasticity, to describe lower limb spasticity patterns in patients with brain damage and to assess the efficacy of abobotulinumtoxin A (dysport) in the rehabilitation of patients with stroke. MATERIAL AND METHODS: Spasticity rating scales (MAS and Tardieu), the Barthel index, the Rankin scale , the Rivermead Mobility Index, the Hauser Ambulation Index, a comfortable walking test were used...
2018: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
L O Severgina, V V Studennikova, S G Radenska-Lopovok, E A Kogan, P I Novikov, I A Korovin
The paper describes a case of essential cryoglobulinemia unassociated with hepatitis B and C viruses. The morphological substrate of the disease was exclusively proliferative endothrombovasculitis without destructive changes in the walls of affected vessels. In addition, in the late stage of the disease, there was its unusual manifestation associated with inflammation of the mesentery arteriolar walls and with the formation of occlusive blood clots in their lumens, which led to severe abdominal diseases. The female patient showed a mosaic involvement of the loops of the bowel in the necrotic process as its separate segments, which was associated with damage to a large number of small vessels...
2018: Arkhiv Patologii
Hongyu Kuang, Xue Zhou, Li Li, Qijian Yi, Weinian Shou, Tiewei Lu
RATIONALE: Familial hypercholesterolemia (FH) is a common inherited cause of coronary heart disease (CHD) and premature death in an early age. Nevertheless, an ischemic heart failure (IHF) associated with FH seems to be rare, and an early diagnosis and therapy could influence the prognosis. PATIENT CONCERNS: In this 13-year-old girl, multiple xanthomas began to develop from the first day of birth. Until June, 2017, she was admitted to our center due to edema, oliguria, and dyspnea during exertion, which was attributed to a recent respiratory infection...
October 2018: Medicine (Baltimore)
Gönül Vural, Şadiye Gümüsyayla
The monocyte-to-high density lipoprotein ratio (MHR) has recently been implemented as an indicator of inflammation and oxidative stress. The present study characterized MHR in patients with diabetic polyneuropathy (DPN), in which oxidative stress and microvascular damage play a role in pathogenesis, relative to patients with non-DPN, diabetic patients without polyneuropathy, and healthy individuals. We further aimed to evaluate the association between MHR and the decreased compound muscle action potential (CMAP) amplitude of patients with diabetic axonal polyneuropathy...
October 2018: Medicine (Baltimore)
Yijie Guo, Meng Xun, Jing Han
Antimicrobial peptides (AMPs) exhibit multiple activities against bacteria and fungi. A bovine myeloid antimicrobial peptide (BMAP-28) belongs to the cathelicidin-derived AMPs and has antimicrobial activity. Due to the rapidly increasing number of infections and outbreaks caused by pan-drug-resistant Acinetobacter baumannii (PDRAB), we sought to determine whether BMAP-28 and its 4 analog peptides (A837, A838, A839, and A840) have antimicrobial activity against PDRAB. Furthermore, we clarified the possible mechanism of inhibition by which of BMAP-28 acts against PDRAB...
October 2018: Medicine (Baltimore)
Wan Syamimee Wan Ghazali, Saidatul Manera Mohd Daud, Nurashikin Mohammad, Kah Keng Wong
The aims of this study were to determine damage index in systemic lupus erythematosus (SLE) patients based on Systemic Lupus International Collaborating Clinics/American College of Rheumatology (SLICC/ACR) Damage Index (SDI) and to determine the laboratory and clinico-demographic factors affecting SDI.This is a retrospective cohort study of 94 SLE patients attending rheumatology clinics in 2 local hospitals in Kelantan, Malaysia. The patients were divided into 2 groups based on SDI score assigned by the attending physician, 0 (without damage) or ≥1 (with damage)...
October 2018: Medicine (Baltimore)
Chen-Jan Chiu, Chih-Wen Chi, Hui-Ru Hsieh, Yu-Chuen Huang, Huey-June Wu, Yu-Jen Chen
The aim of this study was to examine the effect of the level-1 Yo-Yo intermittent recovery test (YYIRT1) on polarization of macrophages in young football players.Fourteen male football players (19.9 ± 1.4 years old) were enrolled in this study. YYIRT1 was performed with 20-meter shuttle runs at increasing speeds and 10-second active recovery in a 5-meter distance between runs till exhaustion. Fasting blood samples were collected before and immediately after YYIRT1. Analysis for macrophage polarization by flow cytometry, reactive oxygen species (ROS) by flow cytometry, biochemical parameters by chemical reactions, and serum cytokines by ELISA were performed...
October 2018: Medicine (Baltimore)
Xin Wang, Qinmeng Shu, Yingqin Ni, Gezhi Xu
Müller cells, as the predominant glial element in the sensory retina, play a crucial role in healthy and diseased retina. Overactivation of Müller cells in response to damage is detrimental to the retina tissue. Current research shows that inhibiting glial fibrillary acidic protein (GFAP), a sensitive indicator of Müller cell activation, attenuated glial reactions and promoted neuroprotection. Recent evidence suggests that the transcript factor SOX9 (sex-determining region Y box 9), part of the SOX family, regulates GFAP expression of astrocytes in the central nervous system...
October 16, 2018: Neuroreport
Soosan Jacob
PURPOSE OF REVIEW: To review the different methods of chopping in cataract surgery. RECENT FINDINGS: Chop techniques are of advantage in reducing the amount of phaco energy, endothelial damage as well as zonular stress to the eye. Various methods have been described including the classical horizontal and vertical chops as well as newer chop techniques for all grades of cataract. Femtochop using the femtosecond laser as well as the use of a microinterventional snare are more recent advances...
October 16, 2018: Current Opinion in Ophthalmology
Sunwoo Lee, Alejandro Cortese, Aasta Gandhi, Elizabeth Agger, Paul L McEuen, Alyosha C Molnar
Recording neural activity in live animals in vivo with minimal tissue damage is one of the major barriers to understanding the nervous system. This paper presents the technology for a tetherless opto-electronic neural interface based on 180 nm CMOS circuits, heterogeneously integrated with an AlGaAs diode that functions as both a photo voltaic and light emitting diode. These microscale opto-electrically transduced electrodes (MOTEs) are powered by, and communicate through an optical interface, simultaneously enabling high temporal-resolution electrical measurements without a tether or a bulky RF coil...
October 15, 2018: IEEE Transactions on Biomedical Circuits and Systems
Jinhyung Bae, Young Sil Min, Yoonjin Nam, Hyun Seok Lee, Uy Dong Sohn
It has been described that Humulus japonicus has potential antituberculosis and anti-inflammatory effects. The antiaging activity of H. japonicus extract (HJE) was also examined not only in yeast but also in human fibroblast cells. We evaluated the protective effect of HJE on hepatotoxicity in this study. We demonstrated the expression of antioxidative enzyme and cytokines in plasma. The vehicle control group received orally administered normal saline. Acute hepatotoxicity rat model was induced by lipopolysaccharide (LPS) (30 μg/kg) and d-galactosamine (D-GalN) (500 mg/kg) by intraperitoneal injection...
October 2018: Journal of Medicinal Food
Yuichiro Fukumoto, Kenji F Tanaka, Bijay Parajuli, Keisuke Shibata, Hideyuki Yoshioka, Kazuya Kanemaru, Christian Gachet, Kazuhiro Ikenaka, Schuichi Koizumi, Hiroyuki Kinouchi
Extracellular ATP, which is released from damaged cells after ischemia, activates P2 receptors. P2Y1 receptors (P2Y1 R) have received considerable attention, especially in astrocytes, because their activation plays a central role in the regulation of neuron-to-glia communication. However, the functions or even existence of P2Y1 R in microglia remain unknown, despite the fact that many microglial P2 receptors are involved in several brain diseases. Herein, we demonstrate the presence and functional capability of microglial P2Y1 R to provide neuroprotective effects following ischemic stress...
October 18, 2018: Journal of Cerebral Blood Flow and Metabolism
Pawel T Schubert, Deidre Mason, Roosacelis Martines, Marlene Deleon-Carnes, Sherif R Zaki, Drucilla J Roberts
Fetal bacterial infections are a common cause of fetal/neonatal morbidity and mortality. The pathologic correlates of congenital bacterial infection include acute chorioamnionitis, acute villitis, and acute intervillositis. The strength of the association of congenital bacterial infection differs among these pathologies. Acute chorioamnionitis results usually from an ascending infection, and damage to the fetus is thought to be cytokine driven rather than damage secondary to bacteremia. Acute villitis is strongly associated with fetal sepsis due to congenital infections...
October 18, 2018: Pediatric and Developmental Pathology
Fahaid Al-Hashem, Suliman Al-Humayed, Shaimaa N Amin, Samaa S Kamar, Soheir S Mansy, Sarah Hassan, Lubna O Abdel-Salam, Mohamed Abd Ellatif, Mohammed Alfaifi, Mohamed A Haidara, Bahjat Al-Ani
The potential inhibitory effect of the antidiabetic and anti-inflammatory drug, metformin on thioacetamide (TAA)-induced hepatotoxicity associated with the inhibition of mammalian target of rapamycin (mTOR)-hypoxia-inducible factor-1α (HIF-1α) axis has not been investigated before. Therefore, we tested whether metformin can protect against liver injuries including fibrosis induced by TAA possibly via the downregulation of mTOR-HIF-1α axis and profibrogenic and inflammatory biomarkers. Rats either injected with TAA (200 mg/kg; twice a week for 8 weeks) before being killed after 10 weeks (model group) or were pretreated with metformin (200 mg/kg) daily for 2 weeks before TAA injections and continued receiving both agents until the end of the experiment, at Week 10 (protective group)...
October 18, 2018: Journal of Cellular Physiology
Yuan Zhou, Li-Li Wen, Han-Dong Wang, Xiao-Ming Zhou, Jiang Fang, Jian-Hong Zhu, Ke Ding
Background: The increasing frequency of explosive injuries has increased interest in blast-induced traumatic brain injury (bTBI). Various shock tube models have been used to study bTBI. Mild-to-moderate explosions are often overlooked because of the slow onset or mildness of the symptoms. However, heavy gas cylinders and large volume chambers in the model may increase the complexity and danger. This study sought to design a modified model to explore the effect of moderate explosion on brain injury in mice...
October 20, 2018: Chinese Medical Journal
Xiang Fan, Ling-Ling Wu, Xia Di, Tong Ding, Ai-Hua Ding
Background: Standard automated perimetry does not sufficiently detect early open-angle glaucoma (OAG) in the clinic. New visual function tests for early glaucoma damage are therefore needed. The present study evaluated whether an isolated-check visual evoked potential (icVEP) could be used to detect visual function abnormalities in early-stage OAG and to explore potential related factors. Methods: This was a cross-sectional study. Thirty-seven OAG patients with early-stage visual field loss (mean deviation ≥ -6...
October 20, 2018: Chinese Medical Journal
Xi Liu, Wei Cao, Jia Qi, Qing Li, Min Zhao, Zhuyun Chen, Jingfeng Zhu, Zhimin Huang, Lin Wu, Bo Zhang, Yanggang Yuan, Changying Xing
Leonurine, a major bioactive component from Herba Leonuri, shows therapeutic potential in several diseases, including diabetes, cardiovascular disease, bovine mastitis and depression. In kidney, it was reported that leonurine was performing a protective effect in both acute kidney injury and renal fibrosis mice models. The aim of this study is to investigate the effect of leonurine in podocyte injury. In the mice model of adriamycin (ADR) -induced nephropathy, the application of leonurine significantly prevented early kidney damage, macrophage infiltration and proteinuria...
October 18, 2018: Free Radical Research
Carlo Cervellati, Giuseppe Valacchi, Veronica Tisato, Giovanni Zuliani, Judit Marsillach
At present, the etiopathogenesis of Alzheimer's disease (AD), the most common form of dementia, remains far to be fully deciphered. In the recent years, also the centrality of amyloid-β peptide in the pathogenesis of the neurodegenerative disease has been questioned and other hypotheses have been advanced. Notably, a common denominator of many of these theoretical models is represented by oxidative stress, which is widely proposed to play a role in the disease initiation and/or progression. Paraoxonase 1 (PON1) is a high-density lipoprotein (HDL)-associated enzyme that endows its carrier with multiple biological functions, including the ability to contrast oxidative damage to lipid components of lipoproteins and cells and protect from toxicity of specific organophosphorus pesticides...
October 11, 2018: Minerva Medica
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