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https://www.readbyqxmd.com/read/29454129/delayed-post-traumatic-subacute-lumbar-subarachnoid-hematoma-case-report-and-review-of-the-literature
#1
Thiébaud Picart, Timothée Jacquesson, Emmanuel Jouanneau, Moncef Berhouma
BACKGROUND: Traumatic spinal subarachnoid hematoma, associated or not to a concurrent subdural hematoma has rarely been described. The evolution of such hematomas is heterogeneous. This study aims at defining the most accurate management which is currently not standardized. CASE DESCRIPTION: A 20-year-old man, victim of a high kinetic road accident five days before, suffering from several non-neurologic non-surgical vertebral fractures, complained of a sudden dorso-lumbar pain irradiating to his lower limbs...
February 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29453884/daratumumab-resistance-is-frequent-in-advanced-stage-multiple-myeloma-patients-irrespectively-of-cd38-expression-and-is-related-to-dismal-prognosis
#2
M Pick, V Vainstein, N Goldschmidt, D Lavie, D Libster, A Gural, S Grisariu, B Avni, D Ben Yehuda, M E Gatt
OBJECTIVE: Daratumumab is a promising new anti-myeloma agent. We report a single center "real world" series of multiple myeloma (MM) and amyloidosis (AL) patients treated with daratumumab. METHODS: Forty-one patients were included: 7 second line MM, 30 heavily pretreated (median number of therapies of 5) advanced MM, and 4 with AL. RESULTS: Second line patients and advanced AL showed high rate of durable overall responses. However, advanced MM patients had a dismal prognosis with an ORR of 36%, and a short median progression free and overall survival of 2...
February 17, 2018: European Journal of Haematology
https://www.readbyqxmd.com/read/29453630/somatic-brca1-mutations-in-clinically-sporadic-breast-cancer-with-medullary-histological-features
#3
Markus Rechsteiner, Konstantin Dedes, Daniel Fink, Bernhard Pestalozzi, Bettina Sobottka, Holger Moch, Peter Wild, Zsuzsanna Varga
BACKGROUND: The role of somatic BRCA1/2 gene mutations in breast cancer is getting increasing attention in view of hereditary disease. The medullary phenotype and triple negative intrinsic subtypes are often, but not exclusively encountered in BRCA1 germline mutated breast cancer, whilst for BRCA2, no association to specific histological features are known. In this study, we addressed the relationship between morphological medullary phenotype and BRCA1/2 somatic mutations in breast cancer without known positive family anamnesis...
February 17, 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29452568/primary-cilia-regulated-transcriptome-in-the-renal-collecting-duct
#4
Sami G Mohammed, Francisco J Arjona, Eric H J Verschuren, Zeineb Bakey, Wynand Alkema, Sacha van Hijum, Miriam Schmidts, René J M Bindels, Joost G J Hoenderop
Renal tubular cells respond to mechanical stimuli generated by urinary flow to regulate the activity and transcript abundance of important genes for ion handling, cellular homeostasis, and proper renal development. The primary cilium, a mechanosensory organelle, is postulated to regulate this mRNA response. The aim of this study is to reveal the transcriptome changes of tubular epithelia in response to fluid flow and determine the role of primary cilia in this process. Inner-medullary collecting duct (CD) cells were subjected to either static or physiologically relevant fluid flow (∼0...
February 8, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29450711/renal-fat-fraction-and-diffusion-tensor-imaging-in-patients-with-early-stage-diabetic-nephropathy
#5
Yuan-Cheng Wang, Yinglian Feng, Chun-Qiang Lu, Shenghong Ju
OBJECTIVE: To investigate the renal fat fraction and water molecular diffusion features in patients with early-stage DN using Dixon imaging and diffusion tensor imaging (DTI). METHODS: Sixty-one type 2 diabetics (normoalbuminuria: n = 40; microalbuminuria: n = 21) and 34 non-diabetic volunteers were included. All participants received three-point Dixon imaging and DTI using a 3.0-T magnetic resonance imager. The fat fraction [FF] and DTI features [fractional anisotropy (FA), apparent diffusion coefficient (ADC), tract counts and length from DTI tractography] were collected...
February 15, 2018: European Radiology
https://www.readbyqxmd.com/read/29448913/-express-role-of-medullary-astroglial-glutamine-synthesis-in-tooth-pulp-hypersensitivity-associated-with-frequent-masseter-muscle-contraction
#6
Tetsuro Watase, Kohei Shimizu, Kinuyo Ohara, Hiroki Komiya, Kohei Kanno, Keisuke Hatori, Noboru Noma, Kuniya Honda, Yoshiyuki Tsuboi, Ayano Katagiri, Masamichi Shinoda, Bunnai Ogiso, Koichi Iwata
No abstract text is available yet for this article.
January 1, 2018: Molecular Pain
https://www.readbyqxmd.com/read/29446322/bold-mri-to-evaluate-early-development-of-renal-injury-in-a-rat-model-of-diabetes
#7
Qidong Wang, Chuangen Guo, Lan Zhang, Rui Zhang, Zhaoming Wang, Ying Xu, Wenbo Xiao
Objective To investigate changes in renal oxygenation levels by blood-oxygenation-level dependent (BOLD)-magnetic resonance imaging (MRI), and to evaluate BOLD-MRI for detecting early diabetic renal injury. Methods Seventy-five rats, with unilateral nephrectomy, were randomly divided into streptozotocin-induced diabetes mellitus (DM, n = 65) and normal control (NC, n = 10) groups. BOLD-MRI scans were performed at baseline (both groups) and at 3, 7, 14, 21, 28, 35, 42, 49, 56, 63 and 70 days (DM only). Renal cortical (C) and medullary (M) R2* signals were measured and R2* medulla/cortex ratio (MCR) was calculated...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29444550/non-invasive-assessment-of-kidney-allograft-fibrosis-with-shear-wave-elastography-a-radiological-pathological-correlation-analysis
#8
Maggie Km Ma, Helen Kw Law, Kin Sun Tse, Kwok Wah Chan, Gary Cw Chan, Desmond Yh Yap, Maggie My Mok, Lorraine Py Kwan, Sydney Cw Tang, Bo Ying Choy, Tak Mao Chan
OBJECTIVES: To evaluate the use of shear wave elastography in assessment of kidney allograft tubulointerstitial fibrosis. METHODS: Shear wave elastography assessment was carried out by two independent operators in kidney transplant recipients who underwent allograft biopsy for clinical indications (i.e. rising creatinine >15% or proteinuria >1 g/day). Allograft biopsies were interpreted by the same pathologist according to the 2013 Banff Classification. RESULTS: A total of 40 elastography scans were carried out (median creatinine 172...
February 14, 2018: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29444295/conus-medullaris-dural-arteriovenous-fistula-arising-from-the-artery-of-the-filum-terminale-2-dimensional-operative-video
#9
Layton Lamsam, Jennifer Quon, Nancy Fischbein, Michael Iv, Robert Dodd, John Ratliff
No abstract text is available yet for this article.
February 10, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29442576/cabozantinib-and-vandetanib-in-medullary-thyroid-carcinoma-mitochondrial-function-and-its-potential-as-a-therapeutic-target-towards-novel-strategies-to-design-anti-cscs-drugs
#10
Ekaterini Christina Tampaki, Athanasios Tampakis, Raoul Droeser, Efstratios Patsouris, Gregory Kouraklis
No abstract text is available yet for this article.
February 14, 2018: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29440190/a-model-linking-sickle-cell-hemoglobinopathies-and-smarcb1-loss-in-renal-medullary-carcinoma
#11
Pavlos Msaouel, Nizar M Tannir, Cheryl Lyn Walker
Renal medullary carcinoma (RMC) is a highly aggressive malignancy that predominantly afflicts young adults and adolescents with sickle hemoglobinopathies. It is characterized by complete loss of expression of the chromatin remodeler and tumor suppressor SMARCB1. Despite therapy, the outcomes of patients with RMC remain very poor, highlighting the need to understand the etiology of this cancer, and develop new diagnostic, preventive, and therapeutic strategies. A key knowledge gap in RMC biology is why sickle hemoglobinopathies predispose to the development of this cancer...
February 12, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29439906/dermoid-cysts-of-the-conus-medullaris-clinical-review-case-series-and-management-strategies
#12
Salah G Aoun, Mary Ashley Liu, Megan Still, Tarek Y El Ahmadieh, Mazin Al Tamimi, Wayne Gluf
BACKGROUND: The management of dermoid cysts can be tedious as they have a tendency to recur, and respond poorly to chemotherapy and radiation. Management is especially difficult for tumors involving highly eloquent areas such as the conus medullaris. OBJECTIVE: We aim to provide a summary of the pathology, clinical presentation, and operative management strategies of dermoid cysts involving the conus medullaris. METHODS: Two clinical cases of dermoid cysts of the conus are presented, as well as a commented surgical video...
February 10, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29438167/insm1-is-a-sensitive-and-specific-marker-of-neuroendocrine-differentiation-in-head-and-neck-tumors
#13
Lisa M Rooper, Justin A Bishop, William H Westra
The head and neck is the site of a wide and sometimes bewildering array of neuroendocrine (NE) tumors. Although recognition of NE differentiation may be necessary for appropriate tumor classification and treatment, traditional NE markers such as synaptophysin, chromogranin, and CD56 are not always sufficiently sensitive or specific to make this distinction. Insulinoma-associated protein 1 (INSM1) is a novel transcription factor that has recently demonstrated excellent sensitivity and specificity for NE differentiation in various anatomic sites, but has not yet been extensively evaluated in tumors of the head and neck...
February 12, 2018: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29437284/formation-of-osteon-like-structures-in-unidirectional-porous-hydroxyapatite-substitute
#14
Takeshi Makihara, Masataka Sakane, Hiroshi Noguchi, Toshinori Tsukanishi, Yasushi Suetsugu, Masashi Yamazaki
Unidirectional porous hydroxyapatite (UDPHAp) bone substitute comprises a microstructure of cross-sectionally oval pores with diameters ranging from 30 to 300 µm. Bone remodeling within the UDPHAp is expected upon implantation into bone; however, the mechanism and factors influencing this bone growth remain unclear. The objectives of the present study were to assess the vasculature and microstructure of newly formed bone and to determine how bone formation is affected by load transfer and UDPHAp pore size...
February 13, 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29436694/lrig1-negatively-regulates-ret-mutants-and-is-downregulated-in-thyroid-cancer
#15
David Lindquist, Fernando C Alsina, Carl Herdenberg, Catharina Larsson, Jo Höppener, Na Wang, Gustavo Paratcha, Miklós Tarján, Tibor Tot, Roger Henriksson, Håkan Hedman
Papillary thyroid carcinoma (PTC) and medullary thyroid carcinoma (MTC) are characterized by genomic rearrangements and point mutations in the proto-oncogene RET. Leucine-rich repeats and immunoglobulin-like domains 1 (LRIG1) is a suppressor of various receptor tyrosine kinases, including RET. LRIG1 expression levels are associated with patient survival in many cancer types. In the present study, we investigated whether the oncogenic RET mutants RET2A (C634R) and RET2B (M918T) were regulated by LRIG1, and the possible effects of LRIG1 expression in thyroid cancer were investigated in three different clinical cohorts and in a RET2B-driven mouse model of MTC...
February 9, 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29435520/chronic-non-suppurative-mandibular-osteomyelitis-with-proliferative-periostitis-a-review
#16
Ihsène Taihi, Loredana Radoi
Chronic non-suppurative osteomyelitis (CNSO) is a chronic bone disease and may be associated with a reparative periosteum entity called proliferative periostitis (PP). This condition rarely affects the maxillofacial region. Mandibular cases were already described for an infectious dental cause, often with an "onion skin" radiographic aspect, but some rare reported cases showed no obvious etiology. They represent a challenge for diagnosis because of possible misdiagnosis leading to unsuccessful or inappropriate treatment attempts...
February 12, 2018: Quintessence International
https://www.readbyqxmd.com/read/29435486/transient-receptor-potential-channels-trpm4-and-trpc3-critically-contribute-to-respiratory-motor-pattern-formation-but-not-rhythmogenesis-in-rodent-brainstem-circuits
#17
Hidehiko Koizumi, Tibin T John, Justine X Chia, Mohammad F Tariq, Ryan S Phillips, Bryan Mosher, Yonghua Chen, Ryan Thompson, Ruli Zhang, Naohiro Koshiya, Jeffrey C Smith
Transient receptor potential channel, TRPM4, the putative molecular substrate for Ca2+-activated nonselective cation current (ICAN), is hypothesized to generate bursting activity of pre-Bötzinger complex (pre-BötC) inspiratory neurons and critically contribute to respiratory rhythmogenesis. Another TRP channel, TRPC3, which mediates Na+/Ca2+ fluxes, may be involved in regulating Ca2+-related signaling, including affecting TRPM4/ICAN in respiratory pre-BötC neurons. However, TRPM4 and TRPC3 expression in pre-BötC inspiratory neurons and functional roles of these channels remain to be determined...
January 2018: ENeuro
https://www.readbyqxmd.com/read/29435219/medullary-like-hepatocellular-carcinoma
#18
Alessandra Cristaudi, Jessica Barizzi, Raffaele Rosso, Marco Varini, Mario Alerci, Laura Rubbia Brandt, Pietro Majno, Ruben Carlo Balzarotti Canger
Hepatocellular carcinoma (HCC) is the most frequent primary hepatic cancer. Pathological features can define the biological behavior and prognosis. Medullary-like HCC is a very rare variant that has been described only twice in literature. In the present study, we report the case of a non-cirrhotic 72-year-old man, who presented two HCC lesions on routine screening for hepatitis C virus liver disease. Radiological imaging and biopsy showed two different subtypes: one classic HCC, which was treated with chemoembolization, and a second PET/CT-positive carcinoma with a PET/CT-positive metastatic coeliac lymph node, which was resected laparoscopically with a left lateral sectionectomy and extended lymphadenectomy...
February 2018: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29433118/-trigeminal-herpes-zoster-presenting-with-high-intensity-signals-for-the-spinal-trigeminal-nucleus-and-tract-on-diffusion-weighted-image-a-case-report-of-stroke-mimic
#19
Takahiro Himeno, Shinichi Takeshima, Satoshi Kubo, Naoyuki Hara, Akio Tanaka, Masaru Kuriyama
A 50-year-old woman was admitted to our hospital with dysesthesia on the right upper portion of her face and a headache. Diffusion-weighted brain magnetic resonance imaging (MRI) revealed high-intensity signals in the dorsolateral portion of the medulla oblongata. She was diagnosed with lateral medullary infarction and was intravenously treated with sodium ozagrel. On the second day of hospitalization, she had nausea and vomiting and showed nystagmus to all directions, suggesting damage to the vestibular nucleus...
February 2018: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/29431057/evolution-in-the-management-of-thyroid-cancer-an-observational-study-in-two-referral-centres-in-belgium
#20
Bernard Peene, Annick Van den Bruel, Carolien Moyson, Brigitte Decallonne
Objective Thyroid cancer incidence is increasing. The rise is most pronounced for microcancers (≤10 mm, T1a). In 2006, landmark European and American guidelines for the management of thyroid cancer were published. We studied thyroid cancer characteristics and initial management before and after 2006. Methods We conducted a retrospective observational study of non-medullary thyroid cancer patients that underwent thyroidectomy in two Belgian referral centres comparing pre-, per- and post-operative management in a cohort before and after 2006...
February 12, 2018: Acta Clinica Belgica
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