keyword
MENU ▼
Read by QxMD icon Read
search

D dimer

keyword
https://www.readbyqxmd.com/read/28435939/conjugated-d-a-porphyrin-dimers-for-solution-processed-bulk-heterojunction-organic-solar-cells
#1
Tianqi Lai, Xuebin Chen, Liangang Xiao, Lin Zhang, Tianxiang Liang, Xiaobin Peng, Yong Cao
Three conjugated D-A porphyrin dimers (DPP-ZnP-E)2, (DPP-ZnP-E)2-2T and (DPP-ZnP-E)2-Ph linked with diethynylene, diethynylene-dithiophene and diethynylene-phenylene have been developed for bulk heterojunction solar cells with high power conversion efficiencies of 4.50%, 5.50% and 6.42%, respectively, when blended with PC61BM as the electron acceptor material.
April 24, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28430802/the-quality-changes-in-fresh-frozen-plasma-of-the-blood-donors-at-high-altitude
#2
Zongkui Wang, Hua Liu, Miaomiao Dou, Xi Du, Jijun Hu, Na Su, Ya Wang, Rong Zhang, Changqing Li
OBJECTIVE: According to the international guidelines, fresh frozen plasma (FFP) is unanimously used to treat coagulation disorders. The quality of FFP is critical for the clinical transfusion. Till now, few studies have integratedly evaluated the differences of FFP from blood donors at between high altitude (HA) and low altitude (LA). Besides, there were no special quality standards for HA FFP in China. MATERIALS AND METHODS: Up to 41 HA (Lhasa, 3700 m) and 46 LA (Chengdu, 500 m) blood donors were included in our study to estimate the differences of FFP from HA and LA blood donors...
2017: PloS One
https://www.readbyqxmd.com/read/28430281/insertion-of-sodium-phosphaethynolate-na-ocp-into-a-zirconium-benzyne-complex
#3
Jerod M Kieser, Robert J Gilliard, Arnold L Rheingold, Hansjörg Grützmacher, John D Protasiewicz
Reaction of the zirconium-benzyne complex [Cp2Zr(PMe3)(C6H4)] with sodium phosphaethynolate, Na[OCP], affords a zircono-phosphaalkene complex. Notably, unlike reactions of other transition metal complexes with Na[OCP] that yield the products of simple salt metathesis, this transformation represents novel Na[OCP] insertion chemistry and formation of an unusual solid state coordination polymer. The polymer is disrupted upon addition of Me3SiCl to afford a silyl-capped dimer that retains the zirconophosphaalkene functionality...
April 21, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28430136/therapeutic-effect-of-low-doses-of-acenocoumarol-in-the-course-of-ischemia-reperfusion-induced-acute-pancreatitis-in-rats
#4
Zygmunt Warzecha, Paweł Sendur, Piotr Ceranowicz, Jakub Cieszkowski, Marcin Dembiński, Ryszard Sendur, Joanna Bonior, Jolanta Jaworek, Tadeusz Ambroży, Rafał Olszanecki, Beata Kuśnierz-Cabala, Kaczmarzyk Tomasz, Romana Tomaszewska, Artur Dembiński
Intravascular activation of coagulation is observed in acute pancreatitis and is related to the severity of this inflammation. The aim of our study was to evaluate the impact of acenocoumarol therapy on the course of acute pancreatitis induced in male rats by pancreatic ischemia followed by reperfusion. Acenocoumarol at a dose of 50, 100, or 150 µg/kg/dose was administered intragastrically once a day, starting the first dose 24 h after the initiation of pancreatic reperfusion. RESULTS: Histological examination showed that treatment with acenocoumarol reduces pancreatic edema, necrosis, and hemorrhages in rats with pancreatitis...
April 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28429932/thermodynamics-of-the-thermal-denaturation-of-acid-molten-globule-state-of-cytochrome-c-indicate-a-reversible-high-temperature-oligomerization-process
#5
Shigeyoshi Nakamura, Tomonori Saotome, Akiko Nakazawa, Masao Fukuda, Yutaka Kuroda, Shun-Ichi Kidokoro
In this study, we performed differential scanning calorimetry (DSC) and pressure perturbation calorimetry (PPC) analysis of the thermal transition of cytochrome c from an acidic molten globule (MG) state with the protein concentrations of 0.5-18.2 mg/mL. DSC profiles were highly reversible and showed clear protein-concentration dependence, indicating that reversible oligomerization occurred accompanying the thermal transition from the MG state. The DSC and PPC data required at least a six-state model including three new oligomeric states: dimer (I2), trimer (I3), and tetramer (I4) in addition to the three monomeric states previously characterized...
April 21, 2017: Biochemistry
https://www.readbyqxmd.com/read/28428565/small-methyltransferase-rlmh-assembles-a-composite-active-site-to-methylate-a-ribosomal-pseudouridine
#6
Cha San Koh, Rohini Madireddy, Timothy J Beane, Phillip D Zamore, Andrei A Korostelev
Eubacterial ribosomal large-subunit methyltransferase H (RlmH) methylates 23S ribosomal RNA pseudouridine 1915 (Ψ1915), which lies near the ribosomal decoding center. The smallest member of the SPOUT superfamily of methyltransferases, RlmH lacks the RNA recognition domain found in larger methyltransferases. The catalytic mechanism of RlmH enzyme is unknown. Here, we describe the structures of RlmH bound to S-adenosyl-methionine (SAM) and the methyltransferase inhibitor sinefungin. Our structural and biochemical studies reveal catalytically essential residues in the dimer-mediated asymmetrical active site...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28426806/the-crystal-structure-of-erwinia-amylovora-amyr-a-member-of-the-ybjn-protein-family-shows-similarity-to-type-iii-secretion-chaperones-but-suggests-different-cellular-functions
#7
Joseph D Bartho, Dom Bellini, Jochen Wuerges, Nicola Demitri, Mirco Toccafondi, Armin O Schmitt, Youfu Zhao, Martin A Walsh, Stefano Benini
AmyR is a stress and virulence associated protein from the plant pathogenic Enterobacteriaceae species Erwinia amylovora, and is a functionally conserved ortholog of YbjN from Escherichia coli. The crystal structure of E. amylovora AmyR reveals a class I type III secretion chaperone-like fold, despite the lack of sequence similarity between these two classes of protein and lacking any evidence of a secretion-associated role. The results indicate that AmyR, and YbjN proteins in general, function through protein-protein interactions without any enzymatic action...
2017: PloS One
https://www.readbyqxmd.com/read/28424709/evolutionary-analysis-of-snf1-related-protein-kinase2-snrk2-and-calcium-sensor-scs-gene-lineages-and-dimerization-of-rice-homologs-suggest-deep-biochemical-conservation-across-angiosperms
#8
Lynn D Holappa, Pamela C Ronald, Elena M Kramer
Members of the sucrose non-fermenting related kinase Group2 (SnRK2) subclasses are implicated in both direct and indirect abscisic acid (ABA) response pathways. We have used phylogenetic, biochemical, and transient in vivo approaches to examine interactions between Triticum tauschii protein kinase 1 (TtPK1) and an interacting protein, Oryza sativa SnRK2-calcium sensor (OsSCS1). Given that TtPK1 has 100% identity with its rice ortholog, osmotic stress/ABA-activated protein kinase (OsSAPK2), we hypothesized that the SCS and TtPK1 interactions are present in both wheat and rice...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28424368/spatial-intensity-distribution-analysis-quantifies-the-extent-and-regulation-of-homo-dimerization-of-the-secretin-receptor
#9
Richard J Ward, John D Pediani, Kaleeckal G Harikumar, Laurence J Miller, Graeme Milligan
Previous studies have indicated that the G protein-coupled secretin receptor is present as a homo-dimer, organized through symmetrical contacts in transmembrane domain IV, and that receptor dimerization is critical for high potency signalling by secretin. However, whether all of the receptor exists in the dimeric form or if this is regulated, is unclear. We used measures of quantal brightness of the secretin receptor tagged with monomeric enhanced green fluorescent protein (mEGFP) and Spatial Intensity Distribution Analysis to assess this...
April 19, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28423659/targeting-hox-pbx-dimers-in-cancer
#10
REVIEW
Richard Morgan, Mohamed El-Tanani, Keith D Hunter, Kevin J Harrington, Hardev S Pandha
The HOX and PBX gene families encode transcription factors that have key roles in establishing the identity of cells and tissues in early development. Over the last 20 years it has become apparent that they are also dysregulated in a wide range of solid and haematological malignancies and have a predominantly pro-oncogenic function. A key mode of transcriptional regulation by HOX and PBX proteins is through their interaction as a heterodimer or larger complex that enhances their binding affinity and specificity for DNA, and there is growing evidence that this interaction is a potential therapeutic target in malignancies that include prostate, breast, renal, ovarian and lung cancer, melanoma, myeloma, and acute myeloid leukaemia...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422863/risk-factors-and-prognosis-of-pulmonary-embolism-in-patients-with-lung-cancer
#11
Li Ma, Zhongguang Wen
Malignant tumors are often complicated with venous thrombosis and pulmonary embolism (PE), particularly in lung cancer. However, owing to the limited data regarding the clinical course about PE in lung cancer patients, the aim of this study is to analyze the risk factors and prognosis of patients with PE and lung cancer. We performed a retrospective case-control study, the clinical data of 90 patients in the First Affiliated Hospital of People's Liberation Army General Hospital between Jan 2010 and Jan 2015 were analyzed, including 30 lung cancer patients with PE (PE group), 60 lung cancer patients without PE (non-PE group), treated during the same period...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28422420/a-study-of-disseminated-intravascular-coagulation-in-acute-leukemia-reveals-markedly-elevated-d-dimer-levels-are-a-sensitive-indicator-of-acute-promyelocytic-leukemia
#12
N Shahmarvand, J S Oak, M J Cascio, M Alcasid, E Goodman, B C Medeiros, D A Arber, J L Zehnder, R S Ohgami
INTRODUCTION: While the presence of disseminated intravascular coagulation (DIC) has been implicated in worse clinical outcome in acute leukemia, the relationship between different subtypes of acute leukemia and the clinicopathologic features of DIC has not been systematically well studied. METHODS: In this study, we retrospectively reviewed 149 cases of newly diagnosed acute leukemia and assessed the utility of evaluating red blood cell morphologic features, and coagulation parameters in determining the presence of DIC as well as differentiating subtypes of acute leukemia...
April 19, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28420100/laucysteinamide-a-a-hybrid-pks-nrps-metabolite-from-a-saipan-cyanobacterium-cf-caldora-penicillata
#13
Chen Zhang, C Benjamin Naman, Niclas Engene, William H Gerwick
A bioactivity guided study of a cf. Caldora penicillata species, collected during a 2013 expedition to the Pacific island of Saipan, Northern Mariana Islands (a commonwealth of the USA), led to the isolation of a new thiazoline-containing alkaloid, laucysteinamide A (1). Laucysteinamide A is a new monomeric analogue of the marine cyanobacterial metabolite, somocystinamide A (2), a disulfide-bonded dimeric compound that was isolated previously from a Fijian marine cyanobacterium. The structure and absolute configuration of laucysteinamide A (1) was determined by a detailed analysis of its NMR, MS, and CD spectra...
April 14, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28419722/role-of-monocyte-tissue-factor-on-patients-with-non-small-cell-lung-cancer
#14
Chaosheng Deng, Shuang Wu, Lina Zhang, Minxia Yang, Qichang Lin, Qiang Xie, Haibo Ding, Ningfang Lian, Shaoyong Gao, Yunjian Huang, Yongxu Jin
Background To examine the expression of D-dimer, fibrinogen (FIB), leukocyte, C-reactive protein (CRP) and tissue factor (TF) released from monocyte in non-small cell lung cancer (NSCLC) patients with or without venous thromboembolism (VTE) and analyze the correlation, to explore the possible mechanisms. Methods Seventy two patients confirmed the diagnosis of lung cancer, among whom 10 with VTE were enrolled into the study from November 2012 to January 2014 in the First Affiliated Hospital of Fujian Medical University, 30 healthy subjects were also enrolled as the control group...
April 17, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/28418614/efficacy-and-safety-of-low-dose-heparin-in-hemodialysis
#15
Mariana Murea, Gregory B Russell, Pirouz Daeihagh, Anita M Saran, Karan Pandya, Mark Cabrera, John M Burkart, Barry I Freedman
INTRODUCTION: The dose of unfractionated heparin (UFH) administered during hemodialysis (HD) varies widely. This prospective study evaluated the safety and efficacy of UFH dose de-escalation. METHODS: Sixty-six prevalent patients on HD receiving UFH per standard-dose protocol (load dose [LD] 50-75 units/kg, maintenance dose [MD] 500-1000 units/hour) had heparin prescription converted to low-dose protocol (start LD 15 units/kg and MD 500 units/hour; dose adjusted in small increments based on assessments of extracorporeal blood circuit)...
April 18, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28418276/thrombin-antithrombin-iii-complex-tests
#16
Sang Yang Lee, Takahiro Niikura, Takashi Iwakura, Yoshitada Sakai, Ryosuke Kuroda, Masahiro Kurosaka
PURPOSE: Patients with fractures of the pelvis and/or lower extremities are at a high risk of developing postoperative venous thromboembolism (VTE). The purpose of this study was to determine whether the thrombin-antithrombin III complex (TAT) tests could be used for postoperative screening of VTE in patients with lower limb or pelvic fractures. METHODS: We enrolled 133 patients who underwent surgical treatment for fracture of the pelvis or lower extremities. TAT and D-dimer levels were compared in patients with and without VTE...
January 1, 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28417501/d-dimer-level-in-association-with-humoral-responses-negatively-correlates-with-survival-of-porcine-islet-grafts-in-non-human-primates-with-immunosuppression
#17
Hee Jung Kang, Haneulnari Lee, Eun Mi Park, Jong-Min Kim, Byoung-Hoon Min, Chung-Gyu Park
BACKGROUND: Several immunosuppression (IS) regimens achieve long-term graft survival in non-human primates (NHPs) after porcine islet transplantation (PITx), but their success rates vary. To understand the mechanism of graft loss, we investigated the relationships between graft survival and humoral or inflammatory responses for maintenance IS in NHPs after PITx. METHODS: Islets purified from adult wild-type pigs were intraportally transplanted into streptozotocin-induced diabetic rhesus monkeys...
April 18, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28417266/guided-longer-pulses-from-a-diagnostic-ultrasound-and-intraclot-microbubble-enhanced-catheter-directed-thrombolysis-in-vivo
#18
Shunji Gao, Qiong Zhu, Xiaoxiao Dong, Zhong Chen, Zheng Liu, Feng Xie
The mechanism of ultrasound thrombolysis (UT) is generally attributed to cavitation. The insufficiency of microbubbles (MB) to serve as cavitation nuclei in the vessel-obstructing thrombi significantly reduces the effectiveness of UT. Taking advantage of the widely performed catheter-directed therapy (CDT), in a thrombo-embolized rabbit IVC model with a simultaneous catheter directed rt-PA thrombolysis procedure, guided moderate mechanical index longer pulses from a modified diagnostic ultrasound transducer, combined with an intraclot infusion of MB, significantly accelerated the thrombolysis process...
April 17, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28416977/trends-in-physiological-coagulation-factors-in-japanese-patients-receiving-novel-oral-anticoagulants
#19
Tomoyuki Nagao, Hiroshi Hunakubo, Mayu Suzuki, Takashi Kataoka, Satoshi Okumura, Norihiro Shinoda, Ken Harada, Bunichi Kato, Masataka Kato, Nobuyuki Marui, Shinichi Sakai, Tetsuya Amano, Toyoaki Murohara
BACKGROUND: Little is known about physiological anticoagulation effects via antithrombin III (AT III) and protein C/S (PC/PS) in patients using new oral anticoagulants (NOACs). METHODS: We evaluated 120 consecutive patients with non-valvular atrial fibrillation (AF) receiving NOACs. Patients were randomly divided into three groups: a dabigatran group (DG, N=40), a rivaroxaban group (RG, N=40) or an apixaban group (AG, N=40). A warfarin group (WG, N=40) was matched with NOAC groups for age, sex and type of AF during the same time period...
April 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28416612/a-biochemical-and-biophysical-model-of-g-quadruplex-dna-recognition-by-positive-coactivator-of-transcription-4
#20
Wezley C Griffin, Jun Gao, Alicia K Byrd, Shubeena Chib, Kevin D Raney
DNA sequences that are guanine-rich have received considerable attention due to their potential to fold into a secondary, four-stranded DNA structure termed G-quadruplex (G4) which has been implicated in genomic instability and some human diseases. We have previously identified positive coactivator of transcription (PC4), a single-stranded DNA (ssDNA) binding protein, as a novel G4 interactor. Here, to expand on these previous observations, we biochemically and biophysically characterized the interaction between PC4 and G4DNA...
April 17, 2017: Journal of Biological Chemistry
keyword
keyword
11364
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"