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https://www.readbyqxmd.com/read/29334496/oxygen-in-the-critically-ill-friend-or-foe
#1
Elisa Damiani, Abele Donati, Massimo Girardis
PURPOSE OF REVIEW: To examine the potential harmful effects of hyperoxia and summarize the results of most recent clinical studies evaluating oxygen therapy in critically ill patients. RECENT FINDINGS: Excessive oxygen supplementation may have detrimental pulmonary and systemic effects because of enhanced oxidative stress and inflammation. Hyperoxia-induced lung injury includes altered surfactant protein composition, reduced mucociliary clearance and histological damage, resulting in atelectasis, reduced lung compliance and increased risk of infections...
January 12, 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29333379/broccoli-brassica-oleracea-reduces-oxidative-damage-to-pancreatic-tissue-and-combats-hyperglycaemia-in-diabetic-rats
#2
Sithara Suresh, Mostafa Ibrahim Waly, Mohammad Shafiur Rahman, Nejib Guizani, Mohamed Abdullah Badar Al-Kindi, Halima Khalfan Ahmed Al-Issaei, Sultan Nasser Mohd Al-Maskari, Bader Rashid Said Al-Ruqaishi, Ahmed Al-Salami
Oxidative stress plays a pivotal role in the development of diabetes and hyperglycaemia. The protective effects of natural extracts against diabetes are mainly dependent on their antioxidant and hypoglycaemic properties. Broccoli (Brassica oleracea) exerts beneficial health effects in several diseases including diabetes; however, the mechanism has not been elucidated yet. The present study was carried out to evaluate the potential hypoglycaemic and antioxidant properties of aqueous broccoli extracts (BEs) in diabetic rats...
December 2017: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/29330675/recognizing-conserved-non-canonical-localization-patterns-of-toll-like-receptors-in-tissues-and-across-species
#3
REVIEW
Glenn Hamonic, J Alex Pasternak, Heather L Wilson
Toll-like receptors (TLR) 1, 2, 4, 5 and 6 were originally characterized as exclusively expressed on the cell surface and TLR 3, 7, 8 and 9 were said to be localized to the endosomes. However, continued research in this area shows that TLR localization may be altered across cell-types, and in response to stimulation, age or disease. Mucosal surfaces must remain tolerant to the commensal flora and thus intracellular or basal lateral localization of TLRs at mucosal surfaces may be necessary to prevent induction of an inflammatory response to commensal flora while still allowing the possibility for the receptors to prime an immune response when a pathogen has crossed the epithelial barrier...
January 12, 2018: Cell and Tissue Research
https://www.readbyqxmd.com/read/29324488/storage-injury-and-blood-transfusions-in-trauma-patients
#4
Peter M Spieth, Haibo Zhang
PURPOSE OF REVIEW: The aim of the present review was to concisely summarize recent studies and current knowledge about effects of red blood cell storage injury in trauma patients. RECENT FINDINGS: Despite a pathophysiological rationale for older packed red blood cells (PRBCs) being associated with adverse events in the host organism, recent large clinical trials failed to show negative effects of transfusion with older PRBCs on clinically relevant outcomes in mixed patient population...
January 10, 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29322515/current-practices-in-perioperative-blood-management-for-patients-undergoing-liver-resection-a-survey-of-surgeons-and-anesthesiologists
#5
Sean Bennett, Abdul Ayoub, Alexandre Tran, Shane English, Alan Tinmouth, Daniel I McIsaac, Dean Fergusson, Guillaume Martel
BACKGROUND: Development of intraoperative techniques and blood management strategies in liver resection, and the multidisciplinary nature of perioperative transfusion decision making, creates an opportunity for practice variation. The aim of this study was to describe the current practices in perioperative blood management and explore differences between surgeons and anesthesiologists. STUDY DESIGN AND METHODS: A Web-based survey was developed, piloted, and circulated to Canadian liver surgeons and anesthesiologists...
January 10, 2018: Transfusion
https://www.readbyqxmd.com/read/29321328/activities-of-thrombin-and-factor-xa-are-essential-for-replication-of-hepatitis-e-virus-and-are-possibly-implicated-in-the-orf1-polyprotein-processing
#6
Gayatri D Kanade, Kunal D Pingale, Yogesh A Karpe
Hepatitis E virus (HEV) is a clinically important positive-sense RNA virus. The ORF1 of HEV encodes a non-structural polyprotein of 1693 amino acids. It is not clear whether the ORF1 polyprotein is processed into distinct enzymatic domains. Many researchers have attempted to understand the mechanisms of pORF1 processing. However, these studies gave varied results and could never convincingly establish the mechanism of pORF1 processing. In this study, we demonstrated the possible role of thrombin and factor Xa in pORF1 processing...
January 10, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29316572/improvement-of-respiratory-depression-in-a-patient-with-primary-medullary-hemorrhage-following-removal-of-hematoma-in-the-half-sitting-position
#7
Shinya Ichimura, Helmut Bertalanffy, Masato Nakaya, Yoichi Mochizuki, Raita Fukaya, Goroku Moriwaki, Masahito Fukuchi, Koji Fujii
Primary medullary hemorrhage is a rare event that may result in ataxic respiration. Although it remains controversial whether primary medullary hemorrhage should be managed conservatively or surgically, recent advancements in neuroimaging and microsurgical techniques have shown promise for improving outcomes and prognosis following surgery. The present report discusses the case of a 70-year-old woman admitted to our institution due to sudden-onset nausea and vomiting. The patient underwent surgical removal of a right medullary hematoma for the treatment of daytime respiratory depression and nocturnal apnea while in the half-sitting position...
January 9, 2018: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/29315764/testican-1-as-a-novel-diagnosis-of-sepsis
#8
Yuri Lee, Wonhwa Lee, Hyun-Ha Chang, Shin-Woo Kim, Jaehong Kim, Jong-Sup Bae
The development of new sepsis-specific biomarkers is mandatory to improve the detection and monitoring of the disease. Testican-1 is a highly conserved, multidomain proteoglycan that is most prominently expressed in the thalamus of the brain, and is upregulated in activated astroglial cells of the cerebrum. The aim of this study was to evaluate blood levels of Testican-1 in septic patients. A prospective study of 82 patients with sepsis was conducted. Furthermore, C57BL/6 mice were administrated with lipopolysaccharide (LPS), high mobility group box 1 (HMGB1) protein or subjected to cecal ligation and puncture (CLP) surgery...
January 8, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29315305/serological-and-molecular-inquiry-of-chagas-disease-in-an-afro-descendant-settlement-in-mato-grosso-do-sul-state-brazil
#9
Mariana Furquim da Silva Martins, Mariane Barroso Pereira, Juliana de Jesus Guimarães Ferreira, Adriana de Oliveira França, Marlon Cézar Cominetti, Eduardo de Castro Ferreira, Maria Elizabeth Moraes Cavalheiros Dorval, Cláudio Lúcio Rossi, Sílvia de Barros Mazon, Eros Antonio de Almeida, Sandra Cecília Botelho Costa, Gláucia Elisete Barbosa Marcon
Furnas do Dionísio is a Brazilian Afro-descendant settlement in the city of Jaraguari, 21.4 miles from Campo Grande, Mato Grosso do Sul, Brazil. Approximately 96 families live in this quilombola (Maroon) settlement, also known in Brazil as a remnant community of descendants of African slaves. Recent studies found 20% of households were infested by triatomines, 18% of insects captured in the community were infected by Trypanosoma cruzi, and 22.7% of dogs presented T. cruzi antibodies. The low prevalence of Chagas disease observed in humans in Mato Grosso do Sul State is attributed to its arrival via colonist migration and subsequent transplacental transmission...
2018: PloS One
https://www.readbyqxmd.com/read/29314318/two-novel-cps1-mutations-in-a-case-of-carbamoyl-phosphate-synthetase-1-deficiency-causing-hyperammonemia-and-leukodystrophy
#10
Xihui Chen, Lijuan Yuan, Mao Sun, Qingbo Liu, Yuanming Wu
BACKGROUND: Carbamoyl phosphate synthetase 1 deficiency (CPS1D) is a rare autosomal recessive disorder of the urea cycle, mostly characterized by hyperammonemia and the concomitant leukodystrophy. The onset of CPS1D can be at any age, and the clinical manifestations are variable and atypical. Genetic tests are indispensable for accurate diagnosis of CPS1D on the basis of biochemical tests. METHODS: Blood tandem mass spectrometric analysis and urea organic acidemia screening were performed on a Chinese neonatal patient with low activity, recurrent seizures, and hyperammonemia...
January 4, 2018: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29313948/human-dendritic-cell-subsets-an-update
#11
REVIEW
Matthew Collin, Venetia Bigley
Dendritic cells (DC) are a class of bone marrow derived cells arising from lympho-myeloid haematopoiesis that form an essential interface between the innate sensing of pathogens and the activation of adaptive immunity. This task requires a wide range of mechanisms and responses, which are divided between three major DC subsets: plasmacytoid DC (pDC), myeloid/conventional DC1 (cDC1) and myeloid/conventional DC2 (cDC2). Each DC subset develops under the control of a specific repertoire of transcription factors involving differential levels of IRF8 and IRF4 in collaboration with PU...
January 3, 2018: Immunology
https://www.readbyqxmd.com/read/29313164/treatment-of-nonocclusive-mesenteric-ischemia-with-type-b-aortic-dissection-using-intra-arterial-catheterization-after-trauma-surgery-case-report
#12
Sho Fujiwara, Yuki Sekine, Ryuichi Nishimura, Kazuya Tadasa, Shukichi Miyazaki
BACKGROUND: Nonocclusive mesenteric ischemia (NOMI) is a mesenteric arterial spasm and intestinal ischemia. This disease is a highly lethal disease because diagnosis and decision of appropriate treatments are often difficult. Operations cannot resolve the spasms and may worsen the situation. However, the safety and effectiveness of catheterization for NOMI with aortic dissection (AD) have not yet been elucidated. Here, we report a successful case of early diagnosis and treatment of NOMI with type B AD involving the superior mesenteric artery (SMA) using the intra-arterial infusion of a vasodilator via the SMA...
January 8, 2018: Surgical Case Reports
https://www.readbyqxmd.com/read/29313073/correction-to-characterization-of-the-first-fully-human-anti-tem1-scfv-in-models-of-solid-tumor-imaging-and-immunotoxin-based-therapy
#13
Xiaopeng Yuan, Mingjuan Yang, Xiang Chen, Xuhua Zhang, Shrey Sukhadia, Najia Musolino, Huijing Bao, Tingtao Chen, Chen Xu, Qirui Wang, Stephen Santoro, Daniel Ricklin, Jia Hu, Ruihe Lin, Wei Yang, Zhijun Li, Weijun Qin, Aizhi Zhao, Nathalie Scholler, George Coukos
Tumor endothelial marker 1 (TEM1) has been identified as a novel surface marker upregulated on the blood vessels and stroma in many solid tumors. We previously isolated a novel single-chain variable fragment (scFv) 78 against TEM1 from a yeast display scFv library. Here we evaluated the potential applications of scFv78 as a tool for tumor molecular imaging, immunotoxin-based therapy and nanotherapy. Epitope mapping, three-dimensional (3D) structure docking and affinity measurements indicated that scFv78 could bind to both human and murine TEM1, with equivalent affinity, at a well-conserved conformational epitope...
January 8, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29305780/corticosteroid-injection-for-an-orthopedic-complaint-in-a-female-with-gestational-diabetes
#14
Palee Myrex, Lorie Harper, Sara Gould
A female with gestational diabetes presented with hip pain characteristic of meralgia paresthetica and trochanteric bursitis. She had similar episodes prior to pregnancy that were treated successfully with non-steroidal anti-inflammatory drugs (NSAIDs) and corticosteroid injections. However, NSAID use during pregnancy poses risks to the fetus and corticosteroids carry a risk of hyperglycemia, especially in those with diabetes. Unfortunately, all attempts made to treat her conservatively failed to improve her symptoms...
January 5, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29302482/conservative-mastectomy-versus-nipple-sparing-mastectomy-preliminary-considerations-of-oncological-safety-on-30-patients-not-receiving-intra-operative-radiotherapy
#15
Tito Brambullo, Erica Dalla Venezia, Stefano Martella, Vincenzo Vindigni, Franco Bassetto, Alessandra Gottardi, Visnu Lohsiriwat, Jean-Yves Petit, Paolo Veronesi, Mario Rietjens
Background: For several years, there has been broad consensus that nipple-sparing mastectomy is a safe surgical treatment for breast cancer. However, the technique is associated with a relatively high risk of local recurrence (LR) behind the nipple-areola complex (NAC). It is for this reason that some years ago we introduced intraoperative radiotherapy with electrons (ELIOT) targeted specifically to the NAC to reduce the probability of recurrence there. However, in some cases we preferred to avoid ELIOT when the NAC appears to have a poor blood supply to ensuring the best chance of NAC survival...
December 2017: Gland Surgery
https://www.readbyqxmd.com/read/29302118/blood-and-blood-product-conservation-results-of-strategies-to-improve-clinical-outcomes-in-open-heart-surgery-patients-at-a-tertiary-hospital
#16
Junaid H Khan, Emily A Green, Jimmin Chang, Alexandria M Ayala, Marilyn S Barkin, Emily E Reinys, Jeffrey Stanton, Russell D Stanten
Blood product usage is a quality outcome for patients undergoing cardiac surgery. To address an increase in blood product usage since the discontinuation of aprotinin, blood conservation strategies were initiated at a tertiary hospital in Oakland, CA. Improving transfusion rates for open heart surgery patients requiring Cardiopulmonary bypass (CPB) involved multiple departments in coordination. Specific changes to conserve blood product usage included advanced CPB technology upgrades, and precise individualized heparin dose response titration assay for heparin and protamine management...
December 2017: Journal of Extra-corporeal Technology
https://www.readbyqxmd.com/read/29299635/both-conditional-ablation-and-overexpression-of-e2-sumo-conjugating-enzyme-ubc9-in-mouse-pancreatic-beta-cells-result-in-impaired-beta-cell-function
#17
Xiaoyu He, Qiaohong Lai, Cai Chen, Na Li, Fei Sun, Wenting Huang, Shu Zhang, Qilin Yu, Ping Yang, Fei Xiong, Zhishui Chen, Quan Gong, Boxu Ren, Jianping Weng, Décio L Eizirik, Zhiguang Zhou, Cong-Yi Wang
AIMS/HYPOTHESIS: Post-translational attachment of a small ubiquitin-like modifier (SUMO) to the lysine (K) residue(s) of target proteins (SUMOylation) is an evolutionary conserved regulatory mechanism. This modification has previously been demonstrated to be implicated in the control of a remarkably versatile regulatory mechanism of cellular processes. However, the exact regulatory role and biological actions of the E2 SUMO-conjugating enzyme (UBC9)-mediated SUMOylation function in pancreatic beta cells has remained elusive...
January 3, 2018: Diabetologia
https://www.readbyqxmd.com/read/29298736/multiple-frequency-bioimpedance-devices-for-fluid-management-in-people-with-chronic-kidney-disease-receiving-dialysis-a-systematic-review-and-economic-evaluation
#18
Graham Scotland, Moira Cruickshank, Elisabet Jacobsen, David Cooper, Cynthia Fraser, Michal Shimonovich, Angharad Marks, Miriam Brazzelli
BACKGROUND: Chronic kidney disease (CKD) is a long-term condition requiring treatment such as conservative management, kidney transplantation or dialysis. To optimise the volume of fluid removed during dialysis (to avoid underhydration or overhydration), people are assigned a 'target weight', which is commonly assessed using clinical methods, such as weight gain between dialysis sessions, pre- and post-dialysis blood pressure and patient-reported symptoms. However, these methods are not precise, and measurement devices based on bioimpedance technology are increasingly used in dialysis centres...
January 2018: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/29298133/epidemiology-and-risk-factors-for-isolation-of-multi-drug-resistant-organisms-in-patients-with-complicated-intra-abdominal-infections
#19
Francesco M Labricciosa, Massimo Sartelli, Lilian M Abbo, Pamela Barbadoro, Luca Ansaloni, Federico Coccolini, Fausto Catena
BACKGROUND: Patients with complicated intra-abdominal infections (cIAIs) caused by multi-drug-resistant organisms (MDROs) have been identified as being at increased risk for adverse outcomes. Prompt identification and stratification of these patients is essential in the clinical management, allowing the physician timely optimization of empiric antimicrobial therapy while awaiting results of intra-operative cultures to streamline antibiotic treatment. METHODS: The study is a secondary analysis from two prospective multi-center color surveillance studies...
January 3, 2018: Surgical Infections
https://www.readbyqxmd.com/read/29297826/hematology-serum-biochemistry-and-urinalysis-values-in-the-adult-giant-panda-ailuropoda-melanoleuca
#20
Caitlin Burrell, Hemin Zhang, Desheng Li, Chengdong Wang, Caiwu Li, Copper Aitken-Palmer
The giant panda ( Ailuropoda melanoleuca) is a high-profile threatened species with individuals in captivity worldwide. As a result of advances in captive animal management and veterinary medicine, the ex situ giant panda population is aging, and improved understanding of age-related changes is necessary. Urine and blood samples were collected in April and July 2015 and analyzed for complete blood count, serum biochemistry, and biochemical and microscopic urine analysis for all individuals sampled ( n = 7, 7-16 yr of age) from giant panda housed at the China Research and Conservation Centre for the Giant Panda in Bifengxia, Sichuan Province, China...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
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