1 mmHg, respectively, (p<0.00).

IDKA/DW were decreased from 3.26 +/- 1.6 to 2.97 +/- 1.63 % in HD group (p>0.05). LVMI and LAI were not increased in both groups. Conclusion: Strict salt and volume control in ESRD patients after assessment of hydration status with either using BCM or echocardiography provides better management of volume control CH5183284 leading to more precise cardiovascular protection.”
“Atrial fibrillation (AF) increases the risk of stroke. New anticoagulation agents have recently provided alternative and promising approaches. This paper reviews the current state of anticoagulation therapy in AF patients, focusing on various clinical scenarios and on comparisons, where possible, between western and eastern populations.”
“Autism is a neurodevelopmental disorder characterized by three core symptom domains: ritualistic-repetitive behaviors, impaired social interaction, and impaired communication and language development. Recent studies have highlighted etiologically relevant

recurrent copy number changes in autism, such as 16p11.2 deletions and duplications, as well as a significant role for unique, novel variants. We used Affymetrix 250K GeneChip Microarray technology (either NspI or StyI) to detect microdeletions and duplications in a subset of children from the Autism Genetic Resource Exchange (AGRE). In order to enrich our sample for potentially pathogenic CNVs we selected children with autism who Akt tumor had additional features

suggestive of chromosomal loss associated with developmental disturbance (positive criteria filter) but who had normal cytogenetic testing (negative criteria filter). We identified families with buy BMS-345541 the following features: at least one child with autism who also had facial dysmorphology, limb or digit abnormalities, or ocular abnormalities. To detect changes in copy number we used a publicly available program, Copy Number Analyser for GeneChip (R) (CNAG) Ver. 2.0. We identified novel deletions and duplications on chromosomes 1q24.2, 3p26.2, 4q34.2, and 6q24.3. Several of these deletions and duplications include new and interesting candidate genes for autism such as syntaxin binding protein 5 (STXBP5 also known as tomosyn) and leucine rich repeat neuronal 1 (LRRN1 also known as NLRR1). Lastly, our data suggest that rare and potentially pathogenic microdeletions and duplications may have a substantially higher prevalence in children with autism and additional developmental anomalies than in children with autism alone.”
“The Quercus genus includes several species and presents a huge genetic variability. In the last decades, studies regarding genetic diversity and molecular characterisation in Quercus emerged. In this work, we intend to characterise nine Quercus species at cytogenetic and molecular levels.

Further studies should examine the ability of OPG in combination with other risk factors to better discriminate fracture

status in men and women with CKD.”
“There has been little improvement in septic shock mortality in the past 70 years, despite ever more broad-spectrum and potent antimicrobials. In the past, resuscitative JPH203 clinical trial elements have been the primary area of clinical septic shock management and research. The question of the optimal use of antimicrobial therapy was relatively ignored in recent decades. This review explores the pathophysiology of sepsis in an attempt to produce a better understanding and define key determinants of antimicrobial therapy response in septic shock. Optimizing existing antimicrobials delivery can drive significant Selleckchem Epoxomicin improvements in the outcome of sepsis and septic shock. Inappropriate antimicrobial selection and dosing or delays in the administration substantially increase mortality and morbidity in life-threatening infections. Definitive combination therapy (where a pathogen known to be susceptible to a given agent is additionally covered by another agent) remains controversial. Although some in vitro studies,

animal models, and clinical studies of infection including endocarditis, gram-negative bacteremia, and neutropenic infections have supported combination therapy, the potential clinical benefit in other severe infections has been questioned. Several meta-analyses have failed to demonstrate improvement of outcome with combination therapy in imrnuno-competent patients with Duvelisib sepsis and/or gram-negative bacteremia. These meta-analyses did not undertake subgroup analyses of the septic shock population. This article reviews the existing evidence supporting combination therapy for severe infections, sepsis, and septic shock.”
“Objectives Breaking of bad news is anecdotally deemed to be culturally unacceptable, even intolerable, to native Africans. We sought whether this hypothesis could be formulated among a cohort of patients who had difficult diagnoses given them in a Nigerian neurosurgical service. Materials and Methods A semi-structured, interviewer-administered questionnaire was used

in a cross-sectional survey among a consecutive cohort of patients on their opinion and preferences regarding the full disclosure of the grave prognoses of their difficult neurosurgical diagnoses. Results A total of 109 patients, 74 (67.9%) males, were sampled over a one-and-half-year period. They were mainly young adults, mean age of 40.2 (SD 14.2) years; more than half of them, 56%, had only basic literacy education, but the majority, 99.1%, declared themselves to have serious religious commitments. Less than 3% of the study participants chose not to receive their medical bad news whilst the majority who preferred to have the full disclosure of their medical diagnosis wanted their relations around during the process in 88%, and indeed, 91% would not be happy to be kept in the dark by their knowing relations.

A three steps derivation assay was used including a methanolysis, then acetylation and dimethyldisulfide BKM120 research buy (DMDS) addition to alkene groups. Electron impact GC-MS analysis of such derivatives offers characteristic fragments allowing the unambiguous determination of double bond position in side chain. This novel method is well-suited for the routine analysis of poly-beta-hydroxyalkanoates

(PHAs), and was used to characterize monounsaturated monomers in both 3-hydroxyalkenoic acids standards as well as in mcl-PHAs and poly(3-hydroxyoctanoate-co-3-hydroxyundecenoate) (PHOU) produced by bacterial strain Pseudomonas guezennei from glucose or a mixture of sodium octanoate plus 10-undecenoic acid, respectively. (C) 2012 Published by Elsevier Selleckchem Rapamycin B.V.”
“We detected

inverse giant magnetoresistance (GMR) in a multilayer of Ta (4 nm)/[Tb (1.6 nm)/CoFe (1.2 nm)](5)/Cu (3 nm)/[CoFe (1.2 nm)/Tb (0.6 nm)](5)/Ta (4 nm); both the bottom [Tb (1.6 nm)/CoFe (1.2 nm)](5) and top [CoFe (1.2 nm)/Tb (0.6 nm)](5) layers revealed a perpendicular magnetic anisotropy. Furthermore, depending on the Tb layer thickness, we confirmed the magnetization of the bottom CoFe layer to be either parallel or antiparallel to the applied field. Hence, the GMR behavior could be controlled by tuning the perpendicular magnetic anisotropy, i.e., it was switchable from inverse to normal GMR or from normal to inverse. Changes in GMR occurred at a compensation composition of CoFe and Tb for which no magnetization was observed due to antiferromagnetic cancellation of the Tb

and CoFe moments. (C) 2011 American Institute of Physics. [doi:10.1063/1.3565197]“
“The constitution of the ternary system Al-Cr-Ti Caspase pathway is investigated over the entire composition range using X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS), differential thermal analysis (DTA) up to 1500 degrees C, and metallography. Solid-state phase equilibria at 900 degrees C are determined for alloys containing <= 75 at. pct aluminum and at 600 degrees C for alloys containing >75 at. pct Al. A reaction scheme linking these solid-state equilibria with the liquidus surface is presented. The liquidus surface for <= 50 at. pct aluminum is dominated by the primary crystallization field of bcc beta(Ti, Cr, Al). In the region >50 at. pct Al, the ternary L1(2)-type phase tau forms in a peritectic reaction p(max) at 1393 degrees C from L + TiAl. Furthermore, with the addition of chromium, the binary peritectic L + alpha(Ti, Al) = TiAl changes into an eutectic L = alpha(Ti, Al)+ TiAl. This eutectic trough descends monotonously through a series of transition reactions and ternary peritectics to end in the binary eutectic L = Cr(7)Al(45) + (Al).

This study involved isolating cancerous cells in an open-top chamber with sub-milliliter volumes (0.1 mL) of blood samples by using a lysis buffer solution for red blood cells (RBCs), as well as concentrating cells employing the dielectrophoretic force generated using stepping electric fields, which were produced using a handheld electric Selleckchem JQ1 module that comprised a voltage-frequency converter and an operational amplifier. To increase the sample volume, an open-top chamber was fabricated on and bonded to a glass substrate by using circular microelectrodes. The concentrations of cancer cells and RBCs were adjusted to 500 cells/mL and 4 x 10(5) cell/ mL, respectively,

for the experiments. To reduce the interference of blood cells during detection and isolate CTCs, the RBCs in the sample were lysed in a lysis buffer solution before the proposed chip was used to dielectrophoretically manipulate the rare cancerous cells. The findings indicated that the lysis buffer lysed the erythrocytes and the survivability levels of the cancerous cells (HeLa and MCF-7) remained high in the lysis buffer. The positive dielectrophoretic cancerous cells were guided based on the direction of the stepping electric field because of movement in the high-electric-field region; hence, the cancerous

cells concentrated and collected at the central electrode.”
“Biofilm-forming ability is IWR-1-endo well established as an important virulence factor. However, there are no studies available regarding biofilm formation of Salmonella Typhimurium 1,4,[5],12:i:-, the new pandemic serovar in Europe. To address this problem, biofilm expression by Salmonella 1,4,[5],12:i:- was evaluated using 133 isolates from clinical, environmental and animal origins,

collected in Portugal from 2006 to 2011. Biofilm detection was performed by phenotypic and genotypic methods, such growth characterization in agar and broth medium, optical density determination by microtiter assays and direct observation by fluorescent in situ hybridization. Biofilm-related genes adrA, csgD and gcpA were detected by PCR. A socio-geographic Selleck Staurosporine characterization of strains as biofilm producers was also performed. Results showed that biofilm formation in monophasic Salmonella is widely distributed in Portuguese isolates and could be one of the reasons for its dissemination in this country. Biofilm expression varies between locations, showing that isolates from some regions like Lisboa or Ponta Delgada have an increased ability to persist in the environment due to an enhanced biofilm production. Biofilm formation also varies between risk groups, with a higher prevalence in isolates from salmonellosis infections in women.

The interest of these developed tools is to identify the areas where the levels are higher from an exposure standpoint, and to know how the distribution of levels is in a real environment, but using exclusively experimental samples which are more reliable than simulations.”
“Eye diseases characterized by excessive angiogenesis such as wet age-related macular degeneration, proliferative diabetic retinopathy, and retinopathy of prematurity are major causes of blindness. Cremastranone is an antiangiogenic, naturally

occurring homoisoflavanone with efficacy in retinal and choroidal neovascularization models and antiproliferative selectivity for endothelial cells over other cell types. We undertook a cell-based structure activity relationship study to develop more potent cremastranone XMU-MP-1 price analogues, with

improved antiproliferative selectivity for retinal endothelial cells. Phenylalanyl-incorporated homoisoflavonoids showed improved activity and remarkable selectivity for retinal microvascular endothelial cells. A lead compound inhibited angiogenesis in vitro without inducing apoptosis and had efficacy in the oxygen-induced retinopathy model buy 5-Fluoracil in vivo.”
“Defective efferocytosis in the airway may perpetuate inflammation in smokers with/without chronic obstructive pulmonary disease. Mannose-binding lectin (MBL) improves efferocytosis in vitro; however, the effects of in vivo administration are unknown. MBL circulates in complex with MBL-associated serine proteases (MASPs), and efferocytosis involves activation of cytoskeletal-remodeling molecules, including Rac1/2/3. Nirogacestat We hypothesized that MBL would improve efferocytosis in vivo, and that possible mechanisms for this effect would include up-regulation of Rac1/2/3 or MASPs. We used

a smoking mouse model to investigate the effects of MBL on efferocytosis. MBL (20 mu g/20 g mouse) was administered via nebulizer to smoke-exposed mice. In lung tissue (disaggregated) and bronchoalveolar lavage (BAL), we investigated leukocyte counts, apoptosis, and the ability of alveolar and tissue macrophages to phagocytose apoptotic murine epithelial cells. In human studies, flow cytometry, ELISA, and RT-PCR were used to investigate the effects of MBL on efferocytosis, Rac1/2/3, and MASPs. Smoke-exposed mice showed significantly reduced efferocytosis in BAL and tissue. Efferocytosis was significantly improved by MBL (BAL: control, 26.2%; smoke-exposed, 17.66%; MBL + smoke-exposed, 27.8%; tissue: control, 35.9%; smoke-exposed, 21.6%; MBL + smoke-exposed, 34.5%). Leukocyte/macrophage counts were normalized in smoke-exposed mice treated with MBL.

Number of AEDs was also considered. Lamotrigine Epigenetic Reader Do inhibitor and GTCS frequency were considered separately in two of the case-control studies. Logistic regression analysis was used to evaluate GTCS frequency, each of the AEDs, and number of AEDs. Adjusted analysis of the different AEDs accounted for study, age at death, gender, and GTCS frequency. KEY FINDINGS: In crude analysis, GTCS frequency, AED polytherapy, and number of AEDs were associated with an increased risk for SUDEP. Analysis of individual AEDs and of number of AEDs, adjusting for GTCS frequency, revealed no increased risk associated with AEDs as monotherapy, polytherapy, or total number. GTCS frequency remained strongly

associated with an increased risk for SUDEP. SIGNIFICANCE: Our findings-that none of the AEDs considered were associated with increased SUDEP risk as monotherapy or as polytherapy when GTCS frequency was taken into account-provide a consistent message that number of GTCS increases SUDEP risk and not AEDs. These results suggest that prevention of SUDEP must involve increased efforts to decrease GTCS frequency in order to avert the occurrence of this devastating epilepsy outcome.”
“We sequenced the complete mitochondrial genome of the pirarucu, Arapaima gigas, the largest fish of the Amazon basin, and economically one of the most important species of the region. The total length of the Arapaima gigas mitochondrial genome is 16,433 bp. The mitochondrial genome contains 13 protein-coding

genes, two rRNA genes and 22 tRNA genes. Twelve of the thirteen protein-coding genes are coded on the heavy strand, while nad6 is coded

on the light strand. Rabusertib price The Arapaima gene order and content is identical to the common vertebrate form, as is codon usage and base composition. Its control region is atypical in being short at 767 bp. The control region also contains a conserved ATGTA motif recently identified in the Asian arowana, three conserved sequence blocks (CSB-1, CBS-2 and CBS-3) and its 3′ end contains long series of di- and mono-nucleotide microsatellite MI-503 inhibitor repeats. Other osteoglossiform species for which control region sequences have been published show similar control region characteristics.”
“Recent studies have associated alterations of neuronal plasticity in specific brain areas with suicidal behavior. The Notch signaling pathway plays a relevant role in the control of stem cell maintenance, cell migration, and neuronal plasticity. In the present study, the gene expression of the four Notch receptors (NOTCH1-4), the five canonical ligands (DLL1, DLL3, DLL4, JAGGED1, and JAGGED2), the two non-canonical ligands (DLK1 and DLK2), and the transcription factors (HES1, HEY1, and HEY2) were measured in the dorsolateral prefrontal cortex (DLPFC) and amygdala (AMY) of suicide victims (S; n = 13 males, with no clinical psychiatric history and non-treated with anxiolytic or antidepressant drugs) and their corresponding controls (C; n = 13 males) by real-time PCR.

Movement and orientation of the fin rays relative to the body axis were calculated throughout the duration of the C-start. We found that:

(1) timing and magnitude of angular displacement varied among fin rays based on position within the fin and (2) kinematic patterns support the prediction that fin rays are actively resisting hydrodynamic forces and transmitting momentum into the water. We suggest that regions within the fins have different roles. Anterior regions of the fins are rapidly elevated to increase the volume of water that the fish may interact with and transmit force into, thus generating greater total momentum. The movement pattern of all the fin rays creates traveling waves Birinapant Apoptosis inhibitor that move posteriorly along the length https://www.selleckchem.com/products/MLN-2238.html of the fin, moving water as they do so. Flexible posterior regions ultimately act to accelerate this water towards the tail, potentially interacting with vortices generated by the caudal fin during the C-start. Despite their simple appearance, median fins are highly complex and versatile control surfaces that modulate

locomotor performance.”
“Chronic lymphocytic leukemia (CLL) is the most common lymphoid neoplasia in Western societies and is currently incurable. Multiple treatment options are practiced, but the available small molecule drugs suffer from dose-limiting toxicity and undesirable side effects. The need for new, less toxic treatments is a pressing concern. Here, we demonstrate that (-)-agelastatin A (1a), a pyrrole-imidazole alkaloid obtained from a marine ALK inhibitor sponge, exhibits potent in vitro activity against primary cell lines of CLL

and disclose the synthesis of several analogues that are equipotent or exceed the potency of the natural product. The novel synthetic analogue, 13-debromo-13-trifluoromethyl agelastatin A (1j), showed higher activity than the natural product when tested against the same cell lines and is the most potent agelastatin derivative reported to date. A detailed in vitro structure-activity relationship of la in CLL compared to that of 22 synthetic analogues is described along with preliminary in vivo pharmacokinetic and metabolism studies on the most potent compounds.”
“Disturbances in parvalbumin- and somatostatin-containing neurons, including deficits in the gamma-aminobutyric acid (GABA)-synthesizing enzyme GAD67 in the prefrontal cortex (PFC) in schizophrenia, may be related to disrupted pre- and/or postnatal development. Deficits in the transcription factor Lhx6, which regulates parvalbumin and somatostatin neuron development, are associated with GAD67 deficits in schizophrenia.

4 +/- 4.1 mu M.”
“CD4(+)CD25(+)Foxp3(+) regulatory T cells (Tregs) produce immunosuppressive adenosine by degradation of adenosine triphosphate (ATP) by the ectonucleotidases CD39 and CD73. In this sequence of events, ATP is not only the substrate for generation of adenosine but it also activates the immunosuppressive functions of Tregs. To compare the effects of ATP on IL-10-deficient (IL-10(-/-)) Tregs with wild-type (wt) Tregs, we incubated both types of Tregs learn more with ATP and assessed their phenotype and function. We show that IL-10(-/-) Tregs failed to become activated by ATP and were impaired in adenosine production. As a consequence, IL-10(-/-) Tregs were unable to block adherence of

effector T cells to the endothelium in vitro. When testing the signaling of the ATP receptor P2X(7) in IL-10(-/-) Tregs,

we recorded no elevation of intracellular calcium after engagement of P2X(7) receptors, as compared with wt Tregs, thus indicating that IL-10(-/-) Tregs fail to react normally selleck products to ATP and display impaired adenosine production, which explains their inability to suppress contact hypersensitivity responses. Therefore, when using IL-10(-/-) Tregs in different disease models, one has to take into account that adenosine production is abrogated and reduced suppressive effects may not be exclusively attributable to the lack of IL-10 production.”
“Background: Trachoma is a major cause of blindness in Southern Sudan. Its distribution has only been partially established and many communities in need of intervention have therefore not been identified or targeted. The present study aimed to develop a tool to improve targeting of survey and control activities.\n\nMethods/Principal Findings: A national trachoma risk map was developed using Bayesian geostatistics models, incorporating trachoma prevalence data from 112 geo-referenced communities surveyed between 2001 and 2009. Logistic regression

models were developed using active trachoma (trachomatous inflammation BGJ398 mouse follicular and/or trachomatous inflammation intense) in 6345 children aged 1-9 years as the outcome, and incorporating fixed effects for age, long-term average rainfall (interpolated from weather station data) and land cover (i.e. vegetation type, derived from satellite remote sensing), as well as geostatistical random effects describing spatial clustering of trachoma. The model predicted the west of the country to be at no or low trachoma risk. Trachoma clusters in the central, northern and eastern areas had a radius of 8 km after accounting for the fixed effects.\n\nConclusion: In Southern Sudan, large-scale spatial variation in the risk of active trachoma infection is associated with aridity. Spatial prediction has identified likely high-risk areas to be prioritized for more data collection, potentially to be followed by intervention.

Primer-extension experiments using a template involving T(NPPOM) have shown that this caged inucleotide efficiently and site-selectively blocks reactions of a variety of polymerases commonly used in PCR Misincorporation

of nucleobases, observed with the use of other previously reported caged thymidines, scarcely occurred. It has turned out that a slight structural difference of caging groups can significantly improve the termination yield of polymerase reactions. A LACE-PCR product coding GFP gene was prepared by using primers containing T(NPPOM) and was ligated with LY294002 solubility dmso a vector fragment prepared using restriction enzymes. The resulting recombinant vector successfully transformed E. coli.”
“BACKGROUND: Venous thromboembolic events (VTE) remain a major cause of morbidity and mortality after trauma. Fondaparinux, a synthetic, nonheparin drug, has shown promise in reducing VTE in orthopaedic patients, but has not previously been studied in trauma patients. The goal of this study was to determine the safety and efficacy of fondaparinux when incorporated into our VTE prevention selleck chemicals protocol. We hypothesized

that the occult deep vein thrombosis (DVT) rate in high-risk patients receiving fondaparinux would be <5%.\n\nSTUDY DESIGN: Consented patients were assigned to a treatment group stratified by their VTE risk factors: high-risk, fondaparinux 2.5 mg subcutaneously once daily; very high-risk, both fondaparinux and pneumatic compression. Patients who were not candidates selleckchem for anticoagulation received pneumatic compression only. All patients underwent surveillance venous ultrasonography imaging of upper and lower extremities on enrollment and weekly thereafter.

Serum Samples were analyzed for peak and trough drug concentration levels.\n\nRESULTS: Overall incidence of DVT among the 87 enrolled patients was 4.6%. DVT developed in only 1 of 80 patients who received fondaparinux (1.2%). One patient assigned to fondaparinux had a DVT on initial scan before receiving prophylaxis. DVT developed in two of six patients in pneumatic compression only (33%). There were no episodes of pulmonary embolism, thrombocyropenia, or bleeding attributable to fondaparinux. Serum levels indicated adequate absorption of the drug and an effective dosing regimen.\n\nCONCLUSIONS: Fondaparinux appears to offer protection against VTE in high-risk trauma patients. Its once-daily dosing regimen can improve compliance and reduce cost and eliminate risk of heparin-induced thrombocytopenia. (J Am Coll Surg 2009;209:589-594. (C) 2009 by the American College Of Surgeons)”
“Oral propranolol (OP) has been shown to be effective in the treatment of complicated infantile hemangiomas (IHs), but optimal treatment duration to avoid relapses after stopping OP treatment has not been established.

Interaction tests between access site and acute coronary syndrome type were performed.\n\nResults\n\nBaseline characteristics were well matched between radial and femoral

groups. There were significant interactions for the primary outcome of death/myocardial infarction/stroke/non-coronary artery bypass graft-related major bleeding (p = 0.025), the secondary outcome of death/myocardial infarction/stroke (p = 0.011) and mortality (p = 0.001). In STEMI patients, radial access reduced the primary outcome compared with femoral Sapanisertib purchase access (3.1% vs. 5.2%; hazard ratio [HR]: 0.60; p = 0.026). For NSTEACS, the rates were 3.8% and 3.5%, respectively (p = 0.49). In STEMI patients, death/myocardial infarction/stroke were also reduced with radial access (2.7% vs. 4.6%; HR 0.59; p = 0.031), as was all-cause mortality (1.3% vs. 3.2%; HR: 0.39; p = 0.006), with no difference in NSTEACS Entinostat manufacturer patients. Operator radial experience was greater in STEMI versus NSTEACS patients (400 vs. 326 cases/year, p < 0.0001). In primary PCI, mortality was reduced with radial access (1.4% vs. 3.1%; HR: 0.46; p = 0.041).\n\nConclusions\n\nIn patients with STEMI, radial artery access reduced the primary outcome and mortality. No such benefit was observed in patients with NSTEACS.

The radial approach may be preferred in STEMI patients when the operator has considerable radial experience. (A Trial of Trans-radial Versus Trans-femoral Percutaneous Coronary Intervention (PCI) Access Site Approach in Patients With Unstable Angina or Myocardial Infarction Managed With an Invasive Strategy [RIVAL]; NCT01014273) (J Am Coll Cardiol 2012; 60:2490-9) (C) 2012 by the American College of Cardiology Foundation”
“Context: selleck products The plant kingdom has become a target in the search for new drugs and biologically active lead

compounds. The common Jrani Tunisian caprifig Ficus carica L. (Moraceae) is one of the large number of plant species that are used in folklore medicine yet to be investigated for the treatment of many diseases, including those of infectious nature.\n\nObjective: Hexane extract of the Tunisian common Jrani caprifig latex was assayed for antibacterial activity against several Gram-positive and Gram-negative bacteria. Chemical composition of the extract was also investigated.\n\nMaterials and methods: The hexane extract was obtained from Tunisian Jrani caprifig latex by maceration, and then analyzed by gas chromatography-mass spectrometry. The extract was tested in vitro for antibacterial activity by the disc diffusion method and minimal inhibitory concentration (MIC) was also determined for all the test cultures.\n\nResults: Thirty-six compounds of the extract were identified, 90.56% of the total area of peaks were coumarins. A strong bactericidal effect was demonstrated. The most sensitive bacteria were Staphylococcus saprophyticus clinical isolate, and Staphylococcus aureus ATCC 25923, with a MIC of 19 mu g/mL.