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https://www.readbyqxmd.com/read/28742156/ct-pattern-analysis-of-necrotizing-and-nonnecrotizing-lymph-nodes-in-kikuchi-disease
#1
Eun Jung Shim, Kyung Mi Lee, Eui Jong Kim, Hyug-Gi Kim, Ji Hye Jang
OBJECTIVE: The purpose of this study was to determine whether a CT interpretation with imaging pattern analysis differentiates Kikuchi disease (KD) from the two more frequently encountered differential lymph nodes diagnoses of tuberculous lymphadenopathy (TL) and reactive hyperplasia (RH). MATERIALS AND METHODS: Between January 2012 and July 2015, 20 patients with KD (6 men, 14 women; mean age, 27.80 years), 36 patients with RH (10 men, 26 women; mean age, 33.08 years) and 34 patients with TL (17 men, 17 women; mean age, 39...
2017: PloS One
https://www.readbyqxmd.com/read/28739514/inhibition-of-blood-brain-barrier-efflux-transporters-promotes-seizure-in-pregnant-rats-role-of-circulating-factors
#2
Abbie C Johnson, Erica S Hammer, Sophie Sakkaki, Sarah M Tremble, Gregory L Holmes, Marilyn J Cipolla
Seizure-provoking factors circulate late in gestation during normal pregnancy, but do not readily gain access to the brain due to the protective nature of the blood-brain barrier. In particular, efflux transporters are powerful ATP-driven pumps that actively prevent unwanted compounds from entering the brain. We hypothesized that acute inhibition of efflux transporters at the blood-brain barrier would result in spontaneous seizures in pregnant rats. We further hypothesized that the blood-brain barrier protects the maternal brain from seizure by increasing expression and/or activity of p-glycoprotein (P-gp), a major efflux transporter...
July 21, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28736098/posterior-canal-wall-reposition-for-management-of-cholesteatoma-technique-and-results
#3
Mohammad Kamal Mobashir, Waleed M Basha, Abd ElRaof Said Mohamed, Mohammed Elsayed Elmaghawry
OBJECTIVE: The main goal of surgery in acquired middle ear cholesteatomas is the complete eradication of the disease with an ear free of discharge. This can be performed either by open or closed techniques with their benefits and drawbacks. We present the technique of reposition of the posterior canal wall for the management of cholesteatoma cases and its results and outcome. PATIENTS AND METHODS: This study included 31 patients with primary acquired middle ear cholesteatoma...
July 20, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28712634/management-of-dens-invaginatus-type-ii-associated-with-immature-apex-and-large-periradicular-lesion-using-platelet-rich-fibrin-and-biodentine
#4
Shruti Goel, Ruchika Roongta Nawal, Sangeeta Talwar
Dens invaginatus (DI) poses peculiar challenges in endodontic treatment of teeth because of distortion of pulpal space. A case of Oehlers type II DI with open apex and large periapical lesion is reported. The case was managed using cone-beam computed tomography (CBCT), operating microscope, platelet-rich fibrin (PRF), and Biodentine. A 15-year-old male patient presented with palatal swelling. Pulp sensibility testing of right maxillary lateral incisor was negative. Intraoral periapical digital radiograph revealed an Oehlers type II DI with open apex and periapical radiolucency...
July 13, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28703794/impaired-autophagosome-clearance-contributes-to-neuronal-death-in-a-piglet-model-of-neonatal-hypoxic-ischemic-encephalopathy
#5
Derong Cui, Dawei Sun, Xintao Wang, Liye Yi, Ewa Kulikowicz, Michael Reyes, Junchao Zhu, Zeng-Jin Yang, Wei Jiang, Raymond C Koehler
To examine the temporal relationship of cortical autophagic flux with delayed neuronal cell death after hypoxia-ischemia (HI) in neonatal piglets. HI was produced with 45-min hypoxia and 7-min airway occlusion in 3-5-day-old piglets. Markers of autophagic, lysosomal and cell death signaling were studied via immunohistochemistry, immunoblotting, and histochemistry in piglet brains. In vitro, autophagy was impaired in cultured mouse cortical neurons treated with chloroquine with or without rapamycin for 1 d in the presence of Z-VAD-fmk, cyclosporine A, or vehicle control, and cell viability was assessed with the MTT assay...
July 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28690033/schisantherin-a-attenuates-ischemia-reperfusion-induced-neuronal-injury-in-rats-via-regulation-of-tlr4-and-c5ar1-signaling-pathways
#6
Yun Wei Shi, Xiao Chuan Zhang, Chen Chen, Miao Tang, Zhi Wei Wang, Xin Miao Liang, Fei Ding, Cai Ping Wang
Toll-like receptor 4 (TLR4) and C5aR1 (CD88) have been recognized as potential therapeutic targets for the reduction of inflammation and secondary damage and improvement of outcome after ischemia and reperfusion (I/R). The inflammatory responses which induce cell apoptosis and necrosis after I/R brain injury lead to a limited process of neural repair. To further comprehend how these targets function in I/R state, we investigated the pathological changes and TLR4 and C5aR1 signaling pathways in vitro and in vivo models of I/R brain injury in this study...
July 6, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28685136/bilateral-renal-cortical-necrosis-associated-with-smoking-synthetic-cannabinoids
#7
Kanaan Mansoor, Ashley Zawodniak, Tibor Nadasdy, Zeid J Khitan
Synthetic cannabinoids have become a common drug of abuse in recent years and their toxicities have come to light as well. They are known to be notorious for the kidneys, with acute tubular necrosis, acute interstitial nephritis and rhabdomyolysis induced renal injury being the frequent nephrotoxic outcomes in users. We report a case of bilateral renal cortical necrosis, leading to irreversible renal damage and lifelong dialysis dependency.
June 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/28676433/the-neurotoxicant-pcb-95-by-increasing-the-neuronal-transcriptional-repressor-rest-down-regulates-caspase-8-and-increases-ripk1-ripk3-and-mlkl-expression-determining-necroptotic-neuronal-death
#8
Natascia Guida, Giusy Laudati, Angelo Serani, Luigi Mascolo, Pasquale Molinaro, Paolo Montuori, Gianfranco Di Renzo, Lorella Mt Canzoniero, Luigi Formisano
Our previous study showed that the environmental neurotoxicant non-dioxin-like polychlorinated biphenyl (PCB)-95 increases RE1-Silencing Transcription Factor (REST) expression, which is related to necrosis, but not apoptosis, of neurons. Meanwhile, necroptosis is a type of a programmed necrosis that is positively regulated by receptor interacting protein kinase 1 (RIPK1), RIPK3 and mixed lineage kinase domain-like (MLKL) and negatively regulated by caspase-8. Here we evaluated whether necroptosis contributes to PCB-95-induced neuronal death through REST up-regulation...
July 1, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28667922/combination-of-hydroxyapatite-platelet-rich-fibrin-and-amnion-membrane-as-a-novel-therapeutic-option-in-regenerative-periapical-endodontic-surgery-case-series
#9
Uday Kiran Uppada, Butchibabu Kalakonda, Pradeep Koppolu, Narendra Varma, Kiran Palakurthy, Venkatesh Manchikanti, Shilpa Prasad, Shereen Samar, Lingam Amara Swapna
INTRODUCTION: Periapical surgery is the last resort in the arsenal of an endodontist to effectively deal with periapical lesions that result from necrosis of the pulp. Bone grafts, growth factors and membranes form an array of regenerative materials that influence the healing outcome of periapical surgery. PRESENTATION OF CASE: The main purpose of the two cases reported here was to assess the potential benefits of a combination of bone graft, platelet-rich fibrin (PRF) and amnion membrane in terms of reduced post-operative discomfort, radiographic evidence of accelerated periapical bone healing and present a novel therapeutic option in the management of large periapical lesions...
June 15, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28655611/mir-137-attenuates-a%C3%AE-induced-neurotoxicity-through-inactivation-of-nf-%C3%AE%C2%BAb-pathway-by-targeting-tnfaip1-in-neuro2a-cells
#10
Dan He, Jun Tan, Jiewen Zhang
BACKGROUND: Accumulation of β-amyloid (Aβ) and neuroinflammation are implicated in the pathogenesis and development of Alzheimer's disease (AD). Neuron-enriched miR-137 was aberrantly downregulated and may be associated with the pathogenesis of AD. However, the detailed function of miR-137 in AD pathogenesis and the molecular mechanism have not been elucidated. METHODS: The expressions of miR-137 and tumor necrosis factor alpha (TNFα)-induced protein 1 (TNFAIP1) at mRNA and protein levels in primary mouse cortical neurons and Neuro2a (N2a) cells exposed to different concentrations of Aβ25-35 were examined by qRT-PCR and western blot...
June 24, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28655291/naturally-acquired-canine-herpesvirus-associated-meningoencephalitis
#11
Mason C Jager, Erica A Sloma, Morgan Shelton, Andrew D Miller
Canid alphaherpesvirus 1 (CHV) causes morbidity and mortality in susceptible puppies. While the neuropathology of experimentally infected puppies has been detailed, characterization of naturally acquired infections is limited. The aim of this study was to describe the histologic, immunohistochemical, and in situ hybridization features of CHV encephalitis in the dog. Six female and 11 male puppies ranging in age from stillborn to 57 days old were included. Histologically, lesions included multifocal glial nodules (16/17, 94%), meningeal infiltrates (15/17, 88%), and cerebellar cortical necrosis (6/9, 67%); however, robust inflammation was not a significant feature in any of the cases...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28567576/effect-of-a-trans-fatty-acid-enriched-diet-on-mitochondrial-inflammatory-and-oxidative-stress-parameters-in-the-cortex-and-hippocampus-of-wistar-rats
#12
Rafael Longhi, Roberto Farina Almeida, Leticia Ferreira Pettenuzzo, Débora Guerini Souza, Letiane Machado, André Quincozes-Santos, Diogo Onofre Souza
PURPOSE: Previously showed that dietary trans fatty acids (TFAs) may cause systemic inflammation and affect the central nervous system (CNS) in Wistar rats by increased levels of cytokines in the cerebrospinal fluid (CSF) and serum (Longhi et al. Eur J Nutr 56(3):1003-1016, 1). Here, we aimed to clarifying the impact of diets with different TFA concentrations on cerebral tissue, focusing on hippocampus and cortex and behavioral performance. METHODS: Wistar rats were fed either a normolipidic or a hyperlipidic diet for 90 days; diets had the same ingredients except for fat compositions, concentrations, and calories...
May 31, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28557798/thermal-ablation-of-a-confluent-lesion-in-the-porcine-kidney-with-a-clinically-available-mr-hifu-system
#13
J M M van Breugel, M de Greef, J W Wijlemans, G Schubert, M A A J van den Bosch, C T W Moonen, M G Ries
The incidence of small renal masses (SRMs) sized  <4 cm has increased over the decades (as co-findings/or due to introduction of cross sectional imaging). Currently, partial nephrectomy (PN) or watchful waiting is advised in these patients. Ultimately, 80-90% of these SRMs require surgical treatment and PN is associated with a 15% complication rate. In this aging population, with possible comorbidities and poor health condition, both PN and watchful waiting are non-ideal treatment options. This resulted in an increased need for early, non-invasive treatment strategies such as MR-guided high intensity focused ultrasound (MR-HIFU)...
July 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28553041/a-single-center-experience-of-kidney-transplantation-from-donation-after-circulatory-death-challenges-and-scope-in-india
#14
S Singh, S Kumar, S Dasgupta, D B Kenwar, M Rathi, A Sharma, H S Kohli, V Jha, K L Gupta, M Minz
Donation after circulatory death (DCD) has never been attempted in India because of legal constraints and lack of guidelines for the withdrawal of life support in end-of-life situations. The present report describes the initial experience of transplantation of organs from DCD donors in a tertiary care center in India. Between 2011 and 2015, five donors had kidneys retrieved after cardiac arrest. These patients were declared dead after waiting for 5 min with no electrocardiographic signal on monitor following cardiopulmonary resuscitation (CPR), which was restarted in three patients till organ retrieval...
May 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28553036/postpartum-acute-kidney-injury-experience-of-a-tertiary-care-center
#15
M M Mir, M S Najar, A M Chaudary, H Azad, A R Reshi, K A Banday, M A Bhat, I A Wani, M M Wani, M Ursilla
Pregnancy-related-acute kidney injury (PR-AKI) had decreased from 40% to 20% in 1960 to <10% in recent series, mostly due to meticulous antenatal management. Postpartum-AKI (PP-AKI) resulting from late obstetric complications has become more apparent after improvement in antenatal care and legalization of medical termination of pregnancy. Women with renal injury in peripartum period admitted to our hospital over a period of 2 years (April 2013 to May 2015) were studied. Of 713 patients of AKI admitted, 61 had PR-AKI with an incidence of 4...
May 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28542042/comparison-between-cortical-drill-and-cortical-tap-and-their-influence-on-primary-stability-of-macro-thread-tapered-implant-in-thin-crestal-cortical-bone-and-low-density-bone
#16
Dasom Heo, Young-Ku Heo, Jong-Ho Lee, Jun-Jae Lee, Bongju Kim
OBJECTIVE: To evaluate the effect of different surgical techniques on primary stability, particularly in poor-quality bone with or without a crestal cortical bone. MATERIALS AND METHODS: Three implant site preparation techniques-undersized drilling (UD), undersized drilling and coronal widening with a cortical drill (UD + CD), undersized drilling and coronal tapping with a cortical tap (UD + CT)-were compared in 2 different low-density polyurethane bone models either with or without the crestal cortical bone...
May 23, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28540205/clinicopathological-spectrum-of-snake-bite-induced-acute-kidney-injury-from-india
#17
Sanjay Vikrant, Ajay Jaryal, Anupam Parashar
AIM: To study the clinico-pathological spectrum of snake bite-induced acute kidney injury (AKI). METHODS: A retrospective study of patients admitted at Indira Gandhi Medical College Hospital, Shimla with snake bite-induced AKI from July 2003 to June 2016. Medical records were evaluated for patient's information on demographic, clinical characteristics, complications and outcome. Outcomes of duration of hospital stay, requirement for intensive care unit support, treatment with dialysis, survival and mortality were analyzed...
May 6, 2017: World Journal of Nephrology
https://www.readbyqxmd.com/read/28535586/an-experimental-infarct-targeting-the-internal-capsule-histopathological-and-ultrastructural-changes
#18
Chang-Woo Han, Kyung-Hwa Lee, Myung Giun Noh, Jin-Myung Kim, Hyung-Seok Kim, Hyung-Sun Kim, Ra Gyung Kim, Jongwook Cho, Hyoung-Ihl Kim, Min-Cheol Lee
BACKGROUND: Stroke involving the cerebral white matter (WM) has increased in prevalence, but most experimental studies have focused on ischemic injury of the gray matter. This study was performed to investigate the WM in a unique rat model of photothrombotic infarct targeting the posterior limb of internal capsule (PLIC), focusing on the identification of the most vulnerable structure in WM by ischemic injury, subsequent glial reaction to the injury, and the fundamental histopathologic feature causing different neurologic outcomes...
May 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28524007/the-proinflammatory-cytokine-gitrl-contributes-to-trail-mediated-neurotoxicity-in-the-hcn-2-human-neuronal-cell-line
#19
Giulia Di Benedetto, Salvatore Saccone, Laurence Lempereur, Nicole Ronsisvalle, Giuseppe Nocentini, Rodolfo Bianchini, Carlo Riccardi, Renato Bernardini, Giuseppina Cantarella
Cytokines belonging to the TNF superfamily play a relevant role in neurodegenerative processes. Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand (TRAIL), released during neuronal injury, has proven to potently mediate and sustain neurotoxic processes leading to neuronal death. Similarly to TRAIL, the cytokine Glucocorticoid-induced TNF receptor ligand (GITRL) is able to transduce proapoptotic signals. In spite of the array of reports suggesting relationships between TRAIL and other cytokines, scanty data are, so far, available about a GITRL/TRAIL crosstalk...
May 18, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28521609/adrenal-obliteration-by-balloon-occluded-retrograde-venous-ethanol-injection-in-a-swine-model
#20
Akitoshi Inoue, Shinichi Ohta, Norihisa Nitta, Shizuka Tsuboi, Akinaga Sonoda, Yuki Tomozawa, Shobu Watanabe, Kenichi Mukaisho, Kiyoshi Murata
PURPOSE: To evaluate the effects of adrenal obliteration by balloon-occluded retrograde venous ethanol injection. MATERIAL AND METHODS: We inserted a micro-balloon catheter into the left adrenal vein of six pigs and retrogradely injected absolute ethanol (0.06 ml/kg) under balloon occlusion. Two pigs were sacrificed on day 3, 7, and 14 after the procedure, respectively. We evaluated adrenal cortical and medullary hormones of the left renal vein, venograms, magnetic resonance imaging scans obtained before and after the procedure, autopsy and microscopic findings, and the weight of the bilateral adrenal glands...
May 19, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
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