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Mads Ryø Jochumsen, Michael Alle Madsen, Lise Gammelgaard, Kirsten Bouchelouche
A 75-year-old man with recently diagnosed high-risk prostate cancer was referred for primary staging with Ga-prostate-specific membrane antigen (PSMA) PET/CT. The scan revealed intense Ga-PSMA uptake in a lumbar osteophyte on the right side of level L2/L3, whereas several other spinal osteophytes showed no Ga-PSMA uptake. MRI findings in the L3 vertebra was consistent with a benign Modic type 1 lesion, but MRI showed no signs of malignancy in the osteophyte with high Ga-PMSA uptake. This case presents an osteophyte as an addition to the list of potential benign pitfalls to be aware of when interpreting Ga-PSMA PET/CT...
March 13, 2018: Clinical Nuclear Medicine
Maite Ramírez, Saritza Santos, Osmarie Martínez, Ricardo Rodríguez, Eric Miranda, Willy D Ramos-Perez, Miguel Otero
Poxviruses are complex dsDNA viruses with over 200 genes, many of them with unknown role in the stimulation of immune responses. Among these, the vaccinia virus (VACV) L3L ORF encodes an essential protein for the transcription of the VACV early genes. To the best of our knowledge, the immune response elicited by L3 has not been characterized. In this regard, our data describes a DNA L3-coding plasmid (pL3L) that stimulates both, humoral- and cell-mediated immune responses in a mouse model. Cell-mediated immune responses were measured by IFN-γ and IL-4 ELISPOT assays...
March 7, 2018: Vaccine
Yu-Ning Teng, Yingzi Wang, Pei-Ling Hsu, Guang Xin, Yu Zhang, Susan L Morris-Natschke, Masuo Goto, Kuo-Hsiung Lee
BACKGROUND: The seeds of Euphorbia lathyris are used in traditional Chinese medicines for the treatment of various medical conditions. E. lathyris contains many natural diterpenes with a lathyrane skeleton. PURPOSE AND STUDY DESIGN: Five lathyrane-type diterpenoids named Euphorbia factors L1 , L2 , L3 , L8 , and L9 (1-5), were investigated for cytotoxicity against A549, MDA-MB-231, KB, and MCF-7 cancer cell lines and the KB-VIN multidrug resistant (MDR) cancer cell line...
March 1, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Anna Bielenica, Aleksandra Drzewiecka-Antonik, Paweł Rejmak, Joanna Stefańska, Michał Koliński, Sebastian Kmiecik, Bogdan Lesyng, Marta Włodarczyk, Piotr Pietrzyk, Marta Struga
A series of Cu(II) complexes of 3-(trifluoromethyl)phenylthiourea derivatives was synthesized. Their structural properties were investigated by spectroscopic techniques (infrared and electron paramagnetic resonance), as well as molecular modeling. All studied coordination compounds are mononuclear complexes containing two chelating ligands bonded to the metal cation via S and deprotonated N atoms. The new chelates were evaluated for their antimicrobial potency. The complex of 1-(3,4-dichlorophenyl)-3-[3-(trifluoromethyl)phenyl]thiourea (3) presented the highest activity against Gram-positive pathogens, even stronger than the activity of its non-complexed counterpart and the reference drug...
January 16, 2018: Journal of Inorganic Biochemistry
Tim Godel, Victor-Felix Mautner, Said Farschtschi, Mirko Pham, Daniel Schwarz, Moritz Kronlage, Isabel Gugel, Sabine Heiland, Martin Bendszus, Philipp Bäumer
Schwannomatosis and neurofibromatosis type 2 are hereditary tumor syndromes and peripheral neuropathy has been reported in both. We prospectively applied in-vivo morphometric measurement of dorsal root ganglia volume in 16 schwannomatosis, 14 neurofibromatosis type 2 patients, and 26 healthy controls by MR-Neurography. Compared to healthy controls, dorsal root ganglia hypertrophy was a consistent finding in neurofibromatosis type 2 (L3: +267%, L4: +235%, L5: +241%, S1: +300% and S2: +242%, Bonferroni-adjusted p<0...
February 22, 2018: Annals of Neurology
Carlos Rodríguez-Lucas, Javier Fernández, José Antonio Boga, Lucia López-Amor, Lorena Forcelledo, Eva Lázaro-López, M Rosario Rodicio
BACKGROUND: Post-neurosurgical ventriculitis is mainly caused by coagulase-negative staphylococci. The rate of linezolid resistant S. epidermidis (LRSE) is increasing worldwide. AIMS: To report clinical and microbiological data from a series of ventriculitis cases caused by LRSE in a Spanish hospital between 2013 and 2016. METHODS: LRSE ventriculitis cases were retrospectively reviewed in a Spanish hospital during a four-year period. Clinical/epidemiological data of the infected patients were reviewed, the isolates involved were typed by PFGE and MLST, and the molecular basis of linezolid resistance was determined...
February 16, 2018: Journal of Hospital Infection
Feng Zhang, Kai Zhang, Hai-Jun Tian, Ai-Min Wu, Xiao-Fei Cheng, Tang-Jun Zhou, Jie Zhao
BACKGROUND: To investigate the distribution and characteristics of the lumbar intervertebral disc height (IDH) in asymptomatic Asian population and to determine whether the lumbar IDH is related to the lumbar spine sagittal alignment. METHODS: A cohort of 169 cases of asymptomatic volunteers was enrolled from January 2014 to July 2016. All participants underwent magnetic resonance imaging of the lumbar spine and panoramic radiography of the spine. Panoramic radiographs of the spine were taken to evaluate pelvic incidence (PI), sacral slope (SS), and pelvic tilt (PT) using Surgimap® software...
February 12, 2018: Journal of Orthopaedic Surgery and Research
Ibrahim Akkurt, Bulent Bakar, Gungor Cagdas Dincel, Fatma Azize Budak Yıldıran, Mustafa Ogden, Egemen Nursoy, Elif Sari
PURPOSE: Peridural fibrosis which could occur after the spinal surgery could adhere neural tissue closely and may cause to neural entrapment symptoms and require surgical reintervention. AIM OF THE STUDY: Present study was designed to reduce occurrence of peridural fibrosis in rat laminectomy model by using biophysical barriers called hyaluronic acid (HAS) dural barrier, activated polyethylene glycol and polyethylene imine (PEG) dural barrier, and platelet-rich plasma (PRP)...
January 18, 2018: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
Hakyoung Yoon, Won-Jin Moon, Sang-Soep Nahm, Jaehwan Kim, Kidong Eom
The use of diffusion tensor imaging (DTI) for the characterization of various lesion types in dogs with spinal cord injury (SCI) has not been investigated. The purpose of this study was to characterize scarring [loose immature scarring (LIMS), intermediate mature scarring (IMS), and dense mature scarring (DMS)], necrosis, cavitation, and acute hemorrhage using multiple DTI parameters and determine the correlations between the DTI parameters and histopathological finding in dogs with controlled SCI. All imaging data were obtained from the lumbar spinal cord (from L1 to L3) of normal and SCI dogs using a 3-Tesla magnetic resonance imaging scanner...
January 3, 2018: Journal of Neurotrauma
Asima Karim, Anish K Amin, Andrew C Hall
Chondrocytes are the major cell type present in hyaline cartilage and they play a crucial role in maintaining the mechanical resilience of the tissue through a balance of the synthesis and breakdown of extracellular matrix macromolecules. Histological assessment of cartilage suggests that articular chondrocytes in situ typically occur singly and demonstrate a rounded/elliptical morphology. However, there are suggestions that their grouping and fine shape is more complex and that these change with cartilage degeneration as occurs in osteoarthritis...
December 28, 2017: Journal of Anatomy
Najla Trabelsi, Stefania M Marotta, Filippo Giarratana, Amani Taamali, Mokhtar Zarrouk, Graziella Ziino, Alessandro Giuffrida
BACKGROUND: Natural compounds are more frequently used against Anisakis, responsible of an important fish borne disease, anisakidosis. The aim of the study was to evaluate the effectiveness of enriched Tunisian olive oil with different spices (Cumin, Turmeric, Clove, Thyme and Lemon) against Anisakis larvae Type 1. RESULTS: In vitro experiment: larvae were submerged separately in the above mentioned oils, and then, examined, to check viability. For each oil, LT50 and LT100 were calculated...
December 28, 2017: Journal of the Science of Food and Agriculture
Aldemar Andres Hegewald, Sebastian Hartmann, Alexander Keiler, Kai Michael Scheufler, Claudius Thomé, Werner Schmoelz
PURPOSE: Hybrid stabilization with a dynamic implant has been suggested to avoid adjacent segment disease by creating a smoother transition zone from the instrumented segments to the untreated levels above. This study aims to characterize the transition zones of two-level posterior instrumentation strategies for elucidating biomechanical differences between rigid fixation and the hybrid stabilization approach with a pedicle screw-based dynamic implant. METHODS: Eight human lumbar spines (L1-5) were loaded in a spine tester with pure moments of 7...
December 6, 2017: European Spine Journal
Seung-Kook Kim, Su-Chan Lee, Seung-Woo Park, Eun-Sang Kim
BACKGROUND: Trans-sacral epiduroscopic lumbar decompression (SELD) is an emerging procedure for the treatment of lumbar disc herniation (LDH), with favorable outcomes having been reported. However, the complications associated with SELD have not been comprehensively evaluated to date. Therefore, the aim of our study was to describe the incidence rate, types, and characteristics of complications following SELD and management outcomes. METHODS: Retrospective analysis of the surgical and clinical outcomes for 127 patients (average age, 42...
December 4, 2017: Journal of Orthopaedic Surgery and Research
Asdrubal Falavigna, Orlando Righesso, Pedro Guarise da Silva, Felix Adolfo Sanchez Chavez, Ericson Sfreddo, Leandro Pelegrini de Almeida, Manuel Jose Valencia Carrasco, Andrei Fernandes Joaquim
OBJECTIVE: This retrospective study reports the epidemiology, clinical aspects, and management of spinal trauma in children and adolescents. METHODS: Multicenter study of 215 cases of spinal trauma in individuals <18 years of age. All patients were submitted to preoperative and postoperative radiologic and clinical evaluation. The fractures were classified according to the AOSpine fracture classification. Neurological evaluation was performed using the Frankel scale at admission to hospital and at the last follow-up...
February 2018: World Neurosurgery
Yuanyi Wang, Cong Ning, Liyu Yao, Xiuying Huang, Chengliang Zhao, Bin Chen, Nan Zhang
RATIONALE: Lumbar burst fractures are frequent injury resulting from high-energy trauma, and the patients suffer from pain and the neurologic dysfunction. Although minimally invasive techniques have advanced rapidly, it was the first time to apply transforaminal endoscopic combined with percutaneous pedicle screw fixation to treatment of lumbar burst fractures. PATIENT CONCERNS: A 33-year-old man underwent Magerl type A3.1 burst fracture at L2 and compression fractures at L3 due to falling from a height with severe lower back pain, sensory loss, and atony of the right leg...
November 2017: Medicine (Baltimore)
Jinru Lin, Wei Sun, Jacques Desmarais, Ning Chen, Renfei Feng, Patrick Zhang, Dien Li, Arthur Lieu, John S Tse, Yuanming Pan
Phosphogypsum formed from the production of phosphoric acid represents by far the biggest accumulation of gypsum-rich wastes in the world and commonly contains elevated radionuclides, including uranium, as well as other heavy metals and metalloids. Therefore, billions-of-tons of phosphogypsum stockpiled worldwide not only possess serious environmental problems but also represent a potential uranium resource. Gypsum is also a major solid constituent in many other types of radioactive mine tailings, which stems from the common usage of sulfuric acid in extraction processes...
January 2018: Journal of Environmental Radioactivity
B Maniangou, C Retière, K Gagne
Killer cell Immunoglobulin-like Receptor (KIR) genes are a family of genes located together within the leukocyte receptor cluster on human chromosome 19q13.4. To date, 17 KIR genes have been identified including nine inhibitory genes (2DL1/L2/L3/L4/L5A/L5B, 3DL1/L2/L3), six activating genes (2DS1/S2/S3/S4/S5, 3DS1) and two pseudogenes (2DP1, 3DP1) classified into group A (KIR A) and group B (KIR B) haplotypes. The number and the nature of KIR genes vary between the individuals. In addition, these KIR genes are known to be polymorphic at allelic level (907 alleles described in July 2017)...
October 11, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
A Germaneau, T Vendeuvre, M Saget, P Doumalin, J C Dupré, F Brémand, F Hesser, C Brèque, P Maxy, M Roulaud, O Monlezun, P Rigoard
BACKGROUND: Burst fractures represent a significant proportion of fractures of the thoracolumbar junction. The recent advent of minimally invasive techniques has revolutionized the surgical treatment of this type of fracture. However mechanical behaviour and primary stability offered by these solutions have to be proved from experimental validation tests on cadaveric specimens. Therefore, the aim of this study was to develop an original and reproducible model of burst fracture under dynamic impact...
September 13, 2017: Clinical Biomechanics
Ken Ninomiya, Nobuyuki Fujita, Naobumi Hosogane, Tomohiro Hikata, Kota Watanabe, Osahiko Tsuji, Narihito Nagoshi, Mitsuru Yagi, Shinjiro Kaneko, Yasuyuki Fukui, Takahiro Koyanagi, Tateru Shiraishi, Takashi Tsuji, Masaya Nakamura, Morio Matsumoto, Ken Ishii
STUDY DESIGN: Multicenter retrospective study. BACKGROUND: Postoperative surgical site infection is one of the most serious complications following spine surgery. Previous studies do not appear to have investigated pyogenic discitis following lumbar laminectomy without discectomy. This study aimed to identify risk factors for postoperative pyogenic discitis following lumbar decompression surgery. METHODS: We examined data from 2721 patients undergoing lumbar laminectomy without discectomy in five hospitals from April 2007 to March 2012...
August 10, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
Wang Yuan, Huan Zhou, James B Lok, Weiqiang Lei, Siyuan He, Robin B Gasser, Rui Zhou, Rui Fang, Yanqin Zhou, Junlong Zhao, Min Hu
Protein kinase RIOK-1 is a non-ribosomal factor essential for rRNA cleavage and ribosome small subunit maturation. It is encoded in all eukaryotic organisms. The RIOK-1 encoding gene of Caenorhabditis elegans (Ce-riok-1) is expressed in the neuronal and reproductive systems in larvae and adults of this free-living nematode, and it supports larval growth and development of the adult gonad. In spite of its recognised roles in model organisms such as C. elegans, little is known about the function of this molecule in parasitic nematodes...
December 2017: International Journal for Parasitology
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