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https://www.readbyqxmd.com/read/28318925/retrospective-evaluation-of-three-different-joint-surgeries-for-internal-derangements-of-the-temporomandibular-joint
#1
Celal Candirli, Mehmet Demirkol, Onur Yilmaz, Sadi Memis
PURPOSE: To compare the outcomes achieved with eminectomy, discectomy alone, and discectomy with an abdominal dermis fat graft (D + ADFG) in the treatment of internal derangements (IDs) of the temporomandibular joint (TMJ), and to briefly discuss the failed cases in which a second operation was needed. PATIENTS AND METHODS: This was a retrospective study of 31 patients (27 females, 4 males) who were unresponsive to conservative therapy and therefore underwent eminectomy (group A, n = 6), discectomy alone (group B, n = 8), or D + ADFG (group C, n = 17)...
February 13, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28317891/hepatic-mitochondrial-dysfunction-is-a-feature-of-glycogen-storage-disease-type-ia-gsdia
#2
Benjamin L Farah, Rohit A Sinha, Yajun Wu, Brijesh K Singh, Andrea Lim, Masahiro Hirayama, Dustin J Landau, Boon Huat Bay, Dwight D Koeberl, Paul M Yen
Glycogen storage disease type Ia (GSDIa, von Gierke disease) is the most common glycogen storage disorder. It is caused by the deficiency of glucose-6-phosphatase, an enzyme which catalyses the final step of gluconeogenesis and glycogenolysis. Clinically, GSDIa is characterized by fasting hypoglycaemia and hepatic glycogen and triglyceride overaccumulation. The latter leads to steatohepatitis, cirrhosis, and the formation of hepatic adenomas and carcinomas. Currently, little is known about the function of various organelles and their impact on metabolism in GSDIa...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28315358/isocitrate-dehydrogenase-idh-inhibition-as-treatment-of-myeloid-malignancies-progress-and-future-directions
#3
REVIEW
Vivek A Upadhyay, Andrew M Brunner, Amir T Fathi
Isocitrate dehydrogenase (IDH) is an essential metabolic enzyme. Over the last two decades, there has been a growing focus on the metabolic derangements that occur with IDH1 and IDH2 mutations. The altered IDH protein leads to accumulation of 2-hydroxyglutarate (2-HG), a metabolite with oncogenic activity via epigenetic mechanisms. The advent of IDH inhibitors has engendered hope in novel and targeted therapies in IDH1/2 mutant myeloid malignancies. We here summarize the basic physiology of IDH, the metabolic and oncogenic consequences of mutant IDH1/2, and the clinical significance of IDH inhibition in hematologic malignancies...
March 14, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28314802/an-ex-vivo-model-to-induce-early-fibrosis-like-changes-in-human-precision-cut-lung-slices
#4
Hani N Alsafadi, Claudia A Staab-Weijnitz, Mareike Lehmann, Michael Lindner, Britta Peschel, Melanie Königshoff, Darcy Elizabeth Wagner
IPF is a devastating chronic interstitial lung disease (ILD) characterized by lung tissue scarring and high morbidity. Lung epithelial injury, myofibroblast activation, and deranged repair are believed to be key processes involved in disease onset and progression but the exact molecular mechanisms behind IPF remain unclear. Several drugs have been shown to slow disease progression, but treatments which halt or reverse IPF progression have not been identified. Ex vivo models of human lung have been proposed for drug discovery, one of which is precision-cut lung slices (PCLS)...
March 17, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28301221/diagnosis-of-internal-derangement-of-the-knee-volume-isotropic-turbo-spin-echo-acquisition-mri-with-fat-suppression-versus-without-fat-suppression
#5
Ji Hyun Lee, Young Cheol Yoon, Ki Jeong Park, Joon Ho Wang
OBJECTIVE: The purpose of this study was to compare 3D volume isotropic turbo spin-echo acquisition (VISTA) MRI with and without fat suppression for use in evaluating ligaments, menisci, and cartilage. MATERIALS AND METHODS: Two radiologists retrospectively and independently reviewed 71 MRI studies. Each study consisted of 3D intermediate-weighted VISTA images with fat suppression and without fat suppression. The presence of tears of the anterior cruciate and posterior cruciate ligaments, tears of the medial and lateral menisci, and cartilaginous defects was evaluated...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28299952/n-acetylcysteine-s-role-in-sepsis-and-potential-benefit-in-patients-with-microcirculatory-derangements
#6
Jason Chertoff
OBJECTIVE: To review the data surrounding the utility of N-acetylcysteine (NAC) in sepsis and identify areas needed for additional research. DATA SOURCES: A review of articles describing the mechanisms of action and clinical use of NAC in sepsis. SUMMARY OF REVIEW: Despite many advances in critical care medicine, still as many as 50% of patients with septic shock die. Treatments thus far have focused on resuscitation and restoration of macrocirculatory targets in the early phases of sepsis, with less focus on microcirculatory dysfunction...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28299615/remote-monitoring-in-heart-failure-the-current-state
#7
REVIEW
Rajeev C Mohan, J Thomas Heywood, Roy S Small
The treatment of congestive heart failure is an expensive undertaking with much of this cost occurring as a result of hospitalization. It is not surprising that many remote monitoring strategies have been developed to help patients maintain clinical stability by avoiding congestion. Most of these have failed. It seems very unlikely that these failures were the result of any one underlying false assumption but rather from the fact that heart failure is a progressive, deadly disease and that human behavior is hard to modify...
March 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28299607/comprehensive-4-stage-categorization-of-bicuspid-aortic-valve-leaflet-morphology-by-cardiac-mri-in-386-patients
#8
I G Murphy, J Collins, A Powell, M Markl, P McCarthy, S C Malaisrie, J C Carr, A J Barker
Bicuspid aortic valve (BAV) disease is heterogeneous and related to valve dysfunction and aortopathy. Appropriate follow up and surveillance of patients with BAV may depend on correct phenotypic categorization. There are multiple classification schemes, however a need exists to comprehensively capture commissure fusion, leaflet asymmetry, and valve orifice orientation. Our aim was to develop a BAV classification scheme for use at MRI to ascertain the frequency of different phenotypes and the consistency of BAV classification...
March 15, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28296657/neuroendocrine-derangements-in-early-septic-shock-pharmacotherapy-for-relative-adrenal-and-vasopressin-insufficiency
#9
James W Schurr, Paul M Szumita, Jeremy R DeGrado
Septic shock is a leading cause of mortality in intensive care units throughout the world. While this disease state represents a highly complex pathophysiology involving numerous organ systems, the early approach to care includes adequate hemodynamic support traditionally achieved via infusions of vasoactive medications after adequate fluid resuscitation. Relative adrenal and vasopressin deficiencies are a common feature of septic shock that contribute to impaired hemodynamics. Hydrocortisone and vasopressin are endocrine system hormone analogues that target the acute neuroendocrine imbalance associated with septic shock...
March 14, 2017: Shock
https://www.readbyqxmd.com/read/28296430/successful-use-of-sertindole-for-severe-behavioral-dyscontrol-in-a-pediatric-case-of-syndromic-autism-spectrum-disorder
#10
Ahmed Naguy
Autism spectrum disorder (ASD) is commonly associated with a host of challenging behaviors. Pharmacotherapy is indicated if psychosocial and educational interventions fail. Atypical antipsychotics have the strongest evidence base so far, with both risperidone and aripiprazole being FDA approved. Unfortunately, their use is fraught with metabolic and neurohormonal side effects. In this study, the author is reporting on a case of syndromic ASD/moderate intellectual disability with severe behavioral component that failed multiple psychotropic trials and ultimately responded dramatically to sertindole...
March 15, 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28293160/hemophagocytic-histiocytosis-a-clinicopathological-correlation
#11
Waseem Iqbal, Abdulaziz Ajlan Alsalloom, Khalid Shehzad, Faisal Mughal, Zafar Rasheed
OBJECTIVES: Histiocytic hyperplasia with hemophagocytosis (HP) is relatively uncommon condition that has often been mistaken in the past for neoplastic disorders. This study was conducted to investigate the possible etiology of HP, its intensity in the bone marrow (BM), and also its effect on hematological parameters with the extent of disease activity. METHODS: Blood samples were collected and BM examination was performed in 250 patients with varied etiology showing HP...
January 2017: International Journal of Health Sciences
https://www.readbyqxmd.com/read/28292895/diagnosis-of-prostate-cancer-by-desorption-electrospray-ionization-mass-spectrometric-imaging-of-small-metabolites-and-lipids
#12
Shibdas Banerjee, Richard N Zare, Robert J Tibshirani, Christian A Kunder, Rosalie Nolley, Richard Fan, James D Brooks, Geoffrey A Sonn
Accurate identification of prostate cancer in frozen sections at the time of surgery can be challenging, limiting the surgeon's ability to best determine resection margins during prostatectomy. We performed desorption electrospray ionization mass spectrometry imaging (DESI-MSI) on 54 banked human cancerous and normal prostate tissue specimens to investigate the spatial distribution of a wide variety of small metabolites, carbohydrates, and lipids. In contrast to several previous studies, our method included Krebs cycle intermediates (m/z <200), which we found to be highly informative in distinguishing cancer from benign tissue...
March 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28292617/obesity-pandemic-causes-consequences-and-solutions-but-do-we-have-the-will
#13
REVIEW
David R Meldrum, Marge A Morris, Joseph C Gambone
Obesity has become pandemic owing to an obesogenic environment (inexpensive calorie dense food, technologies and structure of communities that reduce or replace physical activity, and inexpensive nonphysical entertainment) and excessive emphasis on low fat intake resulting in excessive intake of simple carbohydrates and sugar. Effects are greater for women owing to their smaller size and extra weight gain with each pregnancy, with 38% of American adult women being obese. Women are responsible for more than three-fourths of the more than 400 billion dollars of excess direct health care expenditures due to obesity...
March 11, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28290794/-hemodynamic-derangements-in-patients-with-functional-univentricular-heart-mechanisms-of-development-possibilities-of-treatment
#14
I A Kovalev, S Ovroutski, I V Plotnikova, A A Tupikina
Heart failure (HF) is a predictable outcome of nearly all cardiovascular diseases including congenital heart diseases (CHD). A special category comprises patients with functional single ventricle (FSV) of the heart because of extreme diversity of anatomical changes of the heart and great vessels, complex mechanisms of development of HF, multistage surgical correction of the defect, presence of arrhythmias, progressive rise of pulmonary vascular resistance, etc. Prevention and treatment of HF in patients with FSV includes surgical optimization of pulmonary blood flow during neonatal period, timely staged surgical correction of the defect, pharmacotherapy, cardiac resynchronization therapy, and in severe cases mechanical cardiac support and heart transplantation...
February 2017: Kardiologiia
https://www.readbyqxmd.com/read/28286911/the-hippocampus-detailed-assessment-of-normative-two-dimensional-measurements-signal-intensity-and-subfield-conspicuity-on-routine-3t-t2-weighted-sequences
#15
Erik H Middlebrooks, Ronald G Quisling, Michael A King, Paul R Carney, Steven Roper, Luis M Colon-Perez, Thomas H Mareci
PURPOSE: The hippocampus has a critical role in many common disease processes. Currently, routine 3 Tesla structural MRI is a mainstay of clinical diagnosis. The goal of our study is to evaluate the normal variability in size and/or conspicuity of the hippocampal subcomponents in routine clinical 3 Tesla high-resolution T2-weighted images to provide a basis for better defining pathological derangements. Additionally, we utilize diffusion data acquired from a 17.6 Tesla MRI of the hippocampus as a benchmark to better illustrate these subcomponents...
March 12, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28283561/alteration-of-neuronal-excitability-and-short-term-synaptic-plasticity-in-the-prefrontal-cortex-of-a-mouse-model-of-mental-illness
#16
Gregg W Crabtree, Ziyi Sun, Mirna Kvajo, Jantine Ac Broek, Karine Fénelon, Heather McKellar, Lan Xiao, Bin Xu, Sabine Bahn, James M O'Donnell, Joseph A Gogos
Employing a genetic mouse model that faithfully recapitulates a DISC1 genetic alteration strongly associated with schizophrenia and other psychiatric disorders, we examined the impact of this mutation within the prefrontal cortex. Although cortical layering, cytoarchitecture and proteome were found to be largely unaffected, electrophysiological examination of the mPFC revealed both neuronal hyper-excitability and alterations in short-term synaptic plasticity consistent with enhanced neurotransmitter release...
March 10, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28281550/reduced-h3k27me3-expression-in-merkel-cell-polyoma-virus-positive-tumors
#17
Klaus J Busam, Melissa P Pulitzer, Daniel C Coit, Maria Arcila, Danielle Leng, Achim A Jungbluth, Thomas Wiesner
Merkel cell carcinoma is a primary cutaneous neuroendocrine carcinoma, which once metastatic is difficult to treat. Recent mutation analyses of Merkel cell carcinoma revealed a low number of mutations in Merkel cell polyomavirus-associated tumors, and a high number of mutations in virus-negative combined squamous cell and neuroendocrine carcinomas of chronically sun-damaged skin. We speculated that the paucity of mutations in virus-positive Merkel cell carcinoma may reflect a pathomechanism that depends on derangements of chromatin without alterations in the DNA sequence (epigenetic dysregulation)...
March 10, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28279944/adipose-tissue-nad-homeostasis-sirtuins-and-poly-adp-ribose-polymerases-important-players-in-mitochondrial-metabolism-and-metabolic-health
#18
REVIEW
Riikka Jokinen, Sini Pirnes-Karhu, Kirsi H Pietiläinen, Eija Pirinen
Obesity, a chronic state of energy overload, is characterized by adipose tissue dysfunction that is considered to be the major driver for obesity associated metabolic complications. The reasons for adipose tissue dysfunction are incompletely understood, but one potential contributing factor is adipose tissue mitochondrial dysfunction. Derangements of adipose tissue mitochondrial biogenesis and pathways associate with obesity and metabolic diseases. Mitochondria are central organelles in energy metabolism through their role in energy derivation through catabolic oxidative reactions...
February 27, 2017: Redox Biology
https://www.readbyqxmd.com/read/28279723/physiologic-cryoamputation-in-managing-critically-ill-patients-with-septic-advanced-acute-limb-ischemia
#19
Samuel L Chen, Isabella J Kuo, Nii-Kabu Kabutey, Roy M Fujitani
OBJECTIVES: Certain critically ill patients with advanced acute limb ischemia with a non-viable extremity may be unsuitable for transport to the operating room to undergo definitive amputation. In these unstable patients, rapid regional cryotherapy allows for prompt infectious source control and correction of hemodynamic and metabolic abnormalities, thereby lessening the risk associated with definitive surgical amputation. We describe our refined technique for lower extremity physiologic cryoamputation and review our institutional experience...
March 6, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28279595/effect-of-a-dosing-time-on-quetiapine-induced-acute-hyperglycemia-in-mice
#20
Snehal Kapse, Hitoshi Ando, Yuki Fujiwara, Chisato Suzuki, Kentaro Ushijima, Hiroko Kitamura, Keiko Hosohata, Kazuhiko Kotani, Shigeki Shimba, Akio Fujimura
Although rare, second-generation antipsychotic drugs cause severe hyperglycemia within several days after the initiation of therapy. Because glucose tolerance exhibits circadian rhythmicity, we evaluated an effect of a dosing-time on quetiapine-induced acute hyperglycemia in mice. A single intraperitoneal dose of quetiapine dosing-time-independently induced insulin resistance in fasted C57BL/6J mice. However, acute hyperglycemic effect was detected only after dosing of the drug at the beginning of an active phase...
February 17, 2017: Journal of Pharmacological Sciences
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