Therefore, we next examine the general electronic properties of single-crystalline 2D MoS2 and study the role of GBs in the electrical transport and photoluminescence properties of its polycrystalline counterparts. These results reveal the important role played by point defects and GBs in affecting charge carrier mobility and excitonic properties of these atomic layers. In addition to the intrinsic defects, growth process induced substrate impurities and strain induced band structure perturbations are revealed as major sources of disorder compound inhibitor in CVD grown 2D MoS2. We further explore substrate defects for

modification and control of electronic and optical properties of 2D MoS2 through interface engineering. Self-assembled monolayer based interface buy AZD6094 modification, as a versatile technique adaptable to different conventional and flexible substrates, is used to promote

significant tunability in the key MoS2 field-effect device parameters. This approach provides a powerful tool for modification of native substrate defect characteristics and allows for a wide range of property modulations. Our results signify the role of intrinsic and extrinsic defects in the physical properties of MoS2 and unveil strategies that can utilize these characteristics.”
“OBJECTIVE. The purpose of our study was to estimate cancer induction risk and generate risk conversion factors in cardiac CT angiography.\n\nMATERIALS AND METHODS. Under an institutional review board waiver and in compliance with HIPAA, we collected characteristics for a consecutive cohort of 100 patients (60 men and 40 women; mean age, 59 +/- 11 years) who had previously undergone ECG-gated cardiac CT angiography on a 64-slice CT scanner. The volume CT Dose Index (CTDI(vol)) and dose-length BIX01294 product (DLP) were recorded and used with the ImPACT CT Patient

Dosimetry Calculator to compute organ and effective doses in a standard 70 kg phantom. Patient-specific organ and effective doses were obtained by applying a weight-based correction factor. Radiation doses to radiosensitive organs were converted to risks using age-and sex-specific data published in BEIR VII.\n\nRESULTS. Median values were 62 mGy for CTDI(vol), 1,084 mGy-cm for DLP, and 17 cm for scan length. Effective doses ranged from 20 mSv (10th percentile) to 31 mSv (90th percentile). Median cancer induction risks in sensitive organs for men and women were 0.065% and 0.17%, respectively. For men and women, the range of risks was about a factor of 2. In men and women, about three quarters of the cancer risk was from lung cancer. Inclusion of the remaining less sensitive organs exposed during cardiac CT angiography examinations would likely increase the cancer induction risk by similar to 20%.\n\nCONCLUSION.

It was chance that made Cajal, during his doctorate studies, have his first contact with histology and force him to study the then current theories about pathogenesis of inflammation. Thus, he gained knowledge of the vascular hypothesis, by Julius Cohnheim, a German pathologist who, opposing the opinion of his teacher and father of cellular pathology, Rudolf Virchow, made leukocytes the protagonists of inflammation, given their ability to develop ameboid movements directed by chemical STAT inhibitor signals. Cohnheim’s chemotactic theory deeply influenced Cajal’s conception of biology. So, the basic postulates of chemotaxis can be identified at different moments in Cajal’s research, from the description of the “growth

cone” in embryonic neuroblasts, the origin of the neurotrophic theory, to the proposal of the pathophysiological mechanisms of neuronal plasticity. From Cajal’s point of view, the neurons move during their development and also adapt to different external circumstances. Chemical endogenous substances can stimulate this movement in a similar way to leukocytes during the process of Wnt activation inflammation. (C) 2012 IBRO. Published by Elsevier Ltd. All rights reserved.”
“The invasive forms of apicomplexan parasites share a conserved form of gliding motility that powers parasite migration across biological

barriers, host cell invasion and egress from infected cells. Previous studies have established that the duration and direction of gliding motility are determined by actin polymerization; however, regulators of actin dynamics in apicomplexans remain poorly characterized. In the absence of a complete ARP2/3 complex, the formin selleck screening library homology 2 domain containing proteins and the accessory protein

profilin are presumed to orchestrate actin polymerization during host cell invasion. Here, we have undertaken the biochemical and functional characterization of two Toxoplasma gondii formins and established that they act in concert as actin nucleators during invasion. The importance of TgFRM1 for parasite motility has been assessed by conditional gene disruption. The contribution of each formin individually and jointly was revealed by an approach based upon the expression of dominant mutants with modified FH2 domains impaired in actin binding but still able to dimerize with their respective endogenous formin. These mutated FH2 domains were fused to the ligand-controlled destabilization domain (DD-FKBP) to achieve conditional expression. This strategy proved unique in identifying the non-redundant and critical roles of both formins in invasion. These findings provide new insights into how controlled actin polymerization drives the directional movement required for productive penetration of parasites into host cells.”
“Background: Increased visceral adipose tissue (VAT) is “pathogenic” through adverse endocrine and immune contributions to metabolic diseases such as diabetes mellitus, hypertension, and dyslipidemia.

pylori and their discreet associations with serious clinical outcomes such as gastric cancer. Copyright (C) 2011 S. Karger AG, Basel”
“A novel fluorescent pH sensor with tunable response range Stem Cell Compound Library was designed based on highly fluorescent

3,4:9,10-perylene tetracarboxylic ammonium, which could coordinate the paramagnetic Fe3+ ions to turn off its fluorescence and could also release Fe3+ to turn on the fluorescence again at higher pH. The fluorescent pH sensor was tunable in the presence of different ligands in aqueous solution. Copyright (c) 2011 John Wiley & Sons, Ltd.”
“Background: Radon gas emanating from underground can concentrate indoor and reach levels, which represent a risk to people’s health. According to WHO (World Health Organization) and EPA (Environmental Protection Agency), radon is the second leading cause of lung cancer in the world. Due to the direct correlation of HSP assay lung cancer and radon exposure, it is ideal to evaluate the hazards of radon accumulation in the Iran dwellings with different materials by direct measurement of the radon concentrations

using accurate, simple and fast method. The aim of this study was to measure variation of radon concentrations with different covering materials on internal building surfaces including walls, which are used in Iran dwellings.\n\nMethods: A special chamber with changeable walls of different covering materials (gypsum, wallpaper, oil dye, plastic dye, wood board, and Belka) was made. Radioactive lantern mantles were used for elevating the radon (Rn-220) levels in the chamber artificially. Ventilation in the chamber had been such way that accumulation of radon could be possible. Active measurement by Prassi portable radon gas surveyor was performed for staging purposes.\n\nResults: The average radon concentration for wood and plastic dye was 869.0 +/- 66.7 and 936.8 +/- 60.6 (bq/m(3)), respectively, while that for wallpaper and gypsum was

449.2 +/- 101.7, 590.9 +/- 49.0 (bg/m(3)), significantly lower than other covers. The average radon concentration for oil dye and Belka cover was 668.3 +/- 42.3, 697.2 +/- 136.7 (bq/m(3)), GSK2245840 supplier respectively.\n\nConclusion: Individuals living in a house with internal wall covering materials of gypsum and wallpaper receive an average annual dose smaller than one living in a house with internal wall covering materials of wood board and plastic dye. Using wallpaper and gypsum as an internal cover for the dwellings suggested.”
“Background: Exposure to acceleration can cause petechial hemorrhages, called G measles. Petechiae usually start to develop between 5 and 9 G with a high interindividual variance. Centrifuge training delays the onset to higher G levels. One might expect onset at lower G levels after bed rest; however, there is no evidence in the literature. A case of petechiae formation after bed rest is presented here.

Increasing cell survival and promoting implant vascularisation are major challenges. Improved expertise with culturing techniques, together with the incorporation of regulatory requirements, will open the way to high-quality clinical trials investigating the usefulness of cell therapy as a method for achieving bone repair. Cell therapy avoids the drawbacks of autologous bone grafting, preserving the bone stock and diminishing treatment invasiveness. (C) 2013 Published

by Elsevier Masson SAS.”
“P>1. In woodland herbs, the probability of flowering and costs associated with reproduction may strongly depend on environmental context (shade vs. light habitats) and on plant size. This may be particularly true for tuberous orchids that inhabit woodlands, as the amount of incoming radiation and total leaf area strongly determine photosynthetic capacity SCH727965 and

hence the amount of carbohydrates that can be relocated to below-ground storage organs that form next year’s rosette and flowering stalk.\n\n2. To fully comprehend the impact EVP4593 mw of size-dependent reproduction on population dynamics under varying light conditions, life cycle models should therefore include plant size in a continuous manner. In this study, annual changes in plant size and demographic behaviour of the tuberous perennial orchid Orchis purpurea were monitored during seven consecutive years (2003-2009) in open and shaded

woodland. Integral projection models (IPMs) and life table response experiments (LTRE) were used to investigate the extent to which variation in plant size affected the overall population dynamics of this species and to decompose differences in population growth rates between populations of open and shaded woodland into contributions from growth, survival and reproduction.\n\n3. Both plants in shaded and light environments needed to be a certain size to initiate flowering, but this threshold size was almost three times as large in shaded environments as in light environments. Plants in open woodlands flowered more frequently over the years, Fer-1 in vivo showed less size regression after flowering and produced significantly more fruits than plants in shaded environments, resulting in significantly larger population growth rates.\n\n4. Our life cycle models revealed that costs of reproduction, measured at the population-level, were small in the light environment, and more than buffered by the increase in survival of flowering plants compared to non-flowering plants. In the shade environment, however, the costs of reproduction were significant and made the difference between a stable (current) and a growing (without reproduction costs) population.\n\n5. Synthesis. Light penetration to the soil is a key variable determining population dynamics of woodland orchids.

Traits evaluated were HCW; KPH; LM area; marbling score; fat thickness; dressing percentage; yield grade; retail, fat, and bone yields; and meat tenderness. Both BRD and IPD were associated with differences in yield grade in GPE7 and GPE8 steers. Animals https://www.selleckchem.com/products/liproxstatin-1.html treated for BRD had decreased yield grades (P = 0.003 and P = 0.02, in GPE7 and GPE8, respectively) compared with

untreated animals. Animals treated for IPD had decreased yield grades (P = 0.0006 and P = 0.004, in GPE7 and GPE8, respectively) compared with untreated animals. Incidence of BRD and IPD were associated with a reduction in fat thickness in GPE7 and GPE8 steers. Animals treated for BRD had reduced adjusted fat measurements (P = 0.0007 and P = 0.01, in GPE7 and GPE8) compared with untreated animals. Animals treated for IPD also had reduced adjusted fat measurements (P = 0.0003 and P = 0.002, in GPE7 and GPE8) compared with untreated animals. Animals treated for BRD (P < 0.007) or IPD (P < 0.02) in the GPE7 population also had decreased estimated KPH measurements compared with unaffected

animals. Animals affected with BRD in GPE8 had greater (P < 0.05) shear force measurements than unaffected animals. Animals affected with IPD in GPE8 had greater HCW (P < 0.03) and fat yield (P < 0.01) measurements but lesser bone yield (P < 0.03) and retail product yield (P < 0.01) measurements than unaffected animals. The relationship between disease and carcass traits should be given consideration by future studies that aim to develop selection strategies based on specific traits.”
“Methods. learn more Thirty-nine patients who had undergone craniotomy operations BX-795 mouse served as the basis for this study between Jul. 2007 and Dec. 2008. Standard pure-tone audiometry (PTA) and speech recognition thresholds (SRT) were calculated for all subjects before, one week and 1 year after craniotomy.\n\nResults. Statistically significant differences were not observed at the

lower and middle frequencies (0.25-2 kHz), however, differences in the hearing thresholds at higher frequencies (4-6 kHz) were statistically significant before and after craniotomy. Mean pure-tone thresholds obtained was significantly more in older subjects when compared to young patients. Moreover, the correlation between increased number of burr holes and sensorineural hearing loss (SNHL) was statistically significant.\n\nConclusions. We conclude that drill-generated noise during craniotomy has been incriminated as a cause of SNHL. Possible noise disturbance to the inner ear can only be avoided by minimizing the number of burr holes and the duration of harmful noise exposure to the cochlear structures.”
“PURPOSE To make decisions about implementing systematic depression screening, primary care physicians who serve Spanish-speaking populations need to know whether Spanish language depression-screening instruments are accurate.

(C) 2011 Elsevier Ltd. All rights reserved.”
“Advances in transsphenoidal endoscopic surgery have allowed difficult clival tumours such as meningiomas causing effacement of the pons and basilar artery to be approached by this technique. We report a clival meningioma resected via a transsphenoidal endoscopic approach. (C) 2009 Elsevier Ltd. All rights reserved.”
“Objectives: Type 2 diabetes mellitus (DM2) is usually accompanied by various comorbidities that can increase the cost of treatment. We are not aware of studies that have determined the costs associated with treating DM2 patients with co-morbidities such as overweight (OW), obesity

(OBE) or arterial hypertension (AHT). The aim of the study was to examine the health-related costs and the incidence JPH203 Transmembrane Transporters inhibitor of cardiovascular disease (CVD) in these patients. Patients and methods: Multicenter, observational retrospective design. We included patients 40-99 years of age who requested medical attention in 2010 in Badalona (Barcelona, Spain). There were two study

groups: those with DM2 and without DM2 (reference group/control), and six subgroups: DM2-only, DM2-AHT, DM2-OW, DM2-OBE; DM2-AHT-OW and DM2-AHT-OBE. The main outcome measures were: co-morbidity, metabolic syndrome (MS), complications (hypoglycemia, CVD) and costs (health and non-health). Follow-up was carried out for two years. Results: A total of 26,845 patients were recruited. The prevalence of DM2 was 14.0%. Subjects with DM2 were MDV3100 older (67.8 vs. 59.7 years) and more were men (51.3 vs. 43.0%), P smaller than .001. DM2 status was associated primarily with OBE (OR=2.8, CI=2.4-3.1), AHT (OR=2.4, CI=2.2-2.6) and OW (OR=1.9, CI=1.7-2.2). The distribution by subgroups was: 6.7% of patients had only DM2, 26.1% had DM2, AHT and OW, and 34.1% had DM2, ANT, and OBE. Some 75.4% had MS and 37.5% reported an episode of hypoglycemia. The total cost/patient with DM2 was (sic)4,458. By subgroups the costs were as follows: DM2: (sic)3,431; DM2-AHT: (sic)4,075; DM2-OW: (sic)4,057; DM2-OBE: (sic)4,915; DM2-AHT-OW: (sic)4,203 and DM2-AHT-OBE: (sic)5,021, P smaller than .001. The CVD rate among patients with DM2 was 4.7 vs.

1.7% in those without DM2 P smaller ICG-001 chemical structure than .001. Conclusions: Obesity is a comorbidity associated with DM2 that leads to greater healthcare costs than ANT. The presence of these comorbidities causes increased rates of CVD. (c) 2013 Elsevier Espana, S.L. All rights reserved.”
“Objective: Repeated hospital admissions (RHA) for ongoing pressure ulcer (PU) care remains a significant challenge in the clinical management of the spinal cord injury/disorders (SCI/D) population. The current study investigated the significance of risk factors for PU treatment and RHA. Method: A retrospective chart review of veterans admitted to the Louis Stokes Cleveland Department of Veterans Affairs Medical Center (LSCDVAMC) Spinal Cord Injury (SCI) unit for Category III or IV PUs was carried out.

“
“T-RFLP investigation of the microbial community of the ruminal fluid of calves revealed changes in the LDK378 order microbiocenosis resulting from feeding the animals with biofilm-protected Bacillus subtilis cells. In the control animals, which switched from the diary to the vegetable diet, the phylum Firmicutes predominated Firmicutes (55.11 +/- 1.97%), in particular the class Clostridia (53.10 +/- 2.06%), families Lachnospiraceae (25.93 +/- 1.41%) and Clostridiaceae (9.90 +/- 1.35%). Members of the phyla Bacteroidetes (11.15 +/- 2.88%) and Actinobacteria (9.27 +/- 1.95%) were also present. Uncultured forms constituted 17.28 +/- 2.01%. The share of bacilli (family

Bacillaceae) was below 2% (1.46 +/- 0.41%). Introduction of B. subtilis cells into the rumen of experimental animals increased the share of Bacillaceae to 2.80 +/- 0.30%. The numbers of Thermoanaerobacteriaceae, Peptostreptococcaceae, and Alicyclobacillaceae increased by an order of magnitude. The numbers of Pseudomonadaceae, Burkholderiaceae, and uncultured Bacteroidetes increased twofold. Increased numbers of the rumen bacteria and protozoa, elevated fatty acid content, and higher ammonia emission indicated increased efficiency of digestion. Some families, including the domineering ones, included the members with different

LDC000067 cell line directions of the correlation with the indices of rumen digestion. The introduced bacilli stimulated the phylotypes with the positive correlation coefficients and suppressed those with the negative correlation. This, the rumen ecosystem was modified in the direction of improved digestion. The functional role of the members of the microbial community, for which the correlations were negative, weakly associated, or unassociated with the indices of rumen digestion are discussed.”
“The aim of this study was to investigate

the influence of apoptosis on Peyer’s patches and the intestinal immunoglobulin A (IgA) response in burned mice. Sixty male Balb/c mice were randomly assigned into the sham-burn (control) group (n = 30) and the burn Dinaciclib clinical trial group (n = 30). The mice in the burn group received a full-thickness scald burn over 20% of the total body surface area (TBSA), on the back. At 12, 24 and 72 h, respectively, after injury, the burned mice (n = 10, at every time point) were anaesthetised and their entire intestines were collected. The mice in the sham-burn group were treated with the same procedure as above, except for the burn injury. The number of Peyer’s patches on every entire intestine and the total Peyer’s patches cell yield were counted. The changes of lymphocyte subpopulations in Peyer’s patches were measured by flow cytometry (FCM). And the levels of intestinal IgA were examined by enzyme-linked immunosorbent assay (ELISA). Fluoresceinisothiocyanate (FITC)-conjugated Annexin-gamma and propiddium iodide (PI) double-staining cells were analysed by FCM for apoptotic ratio in Peyer’s patches.

92) and the mean Quality-of-Life score was 0.66 (standard deviation 1.04). Conclusions: Transcorporal placement of an artificial urinary sphincter is both safe and efficacious in patients with a Bafilomycin A1 purchase small caliber or atrophic urethra, either as a primary or salvage procedure. Efficacy and

level of satisfaction in this subset of patients is equivalent to those undergoing traditional artificial urinary sphincter cuff placement.”
“Gastrointestinal Stromal Tumor (GIST) is the most common mesenchymal tumor of the digestive tract. GISTs develop with relatively high incidence in patients with Neurofibromatosis-1 syndrome (NF1). Mutational activation of KIT or PDGFRA is believed to be a driving force in the pathogenesis of familial and sporadic GISTs. Unlike those tumors, NF1-associated GISTs do not have KIT or PGDFRA mutations. Similarly, no mutational activation of KIT or PDGFRA has been identified in pediatric GISTs and in GISTs associated with Carney Triad and Carney-Stratakis Syndrome. KIT and PDGFRA-wild type tumors IPI-145 mouse are expected to have lesser response to imatinib treatment. Recently, Carney Triad and Carney-Stratakis Syndrome-associated GISTs and pediatric GISTs have been shown to have a loss of expression of succinate dehydrogenase subunit B (SDHB), a Krebs cycle/electron transport chain interface protein. It was proposed

that GISTs can be divided into SDHB-positive (type 1), and SDHB-negative (type 2) tumors because of similarities in clinical features and response to imatinib treatment. In this study, SDHB expression was examined immunohistochemically in 22 well-characterized NF1-associated GISTs. All analyzed tumors expressed SDHB. Based on SDHB-expression status, NF1-associated GISTs belong to type 1 category; Batimastat Proteases inhibitor however, similarly to SDHB type 2 tumors, they do not respond well to imatinib treatment. Therefore, a simple categorization of GISTs into SDHB-positive and-negative seems to be incomplete. A classification based on both SDHB expression status and KIT and PDGFRA mutation status characterize GISTs

more accurately and allow subdivision of SDHB-positive tumors into different clinico-genetic categories.”
“The aim of this study was to assess the diversity of thermotolerant Campylobacter spp. isolated from turkey flocks at six rearing farms 1-2 weeks prior to slaughter (360 faecal swab samples) and from 11 different stages at the slaughterhouse (636 caecal, environmental, neck skin and meat samples). A total of 121 Campylobacter isolates were identified to species level using a multiplex PCR assay and were typed by pulsed-field gel electrophoresis (PFGE) and flaA-short variable region (SVR) sequencing. All Campylobacter isolates were identified as Campylobacter jejuni. PFGE analysis with KpnI restriction enzyme resulted in 11 PFGE types (I-XI) and flaA SVR typing yielded in nine flaA-SVR alleles.

\n\nMethods: A random sample of 6784 persons from a general population aged 30-60 years participated in a health examination in 1999-2001. Serum samples from all participants were stored and levels of 25-hydroxyvitamin D (25(OH)D) were measured by HPLC in 2009. The method was compared to another HPLC method. Information on dietary intake of vitamin D and other lifestyle factors were obtained by questionnaires. A total of 6146 persons https://www.selleckchem.com/products/wnt-c59-c59.html defined as ethnic Danes

and with successful measurements of 25(OH)D were included in the analyses.\n\nResults: The overall prevalence of vitamin D deficiency (25(OH)D<25nmol/l) and insufficiency (25(OH) D<50nmol/l) were 13.8% and 52.2%, respectively. A marked seasonal fluctuation was seen in serum levels of 25(OH)D – median A-1155463 ic50 values of 25(OH)D were lowest in February and highest in August. In multiple logistic regression models (n=5506), low vitamin D status was significantly associated with obesity (BMI >= 30), daily smoking and a sedentary lifestyle. However, measurements of 25(OH)D were not associated with the estimated dietary intake

of vitamin D. Comparison of two HPLC methods demonstrated considerable differences in accuracy.\n\nDiscussion and conclusions: Our results suggest that poor vitamin D status is common among adults in a Northern European country without food fortification with vitamin D. Methodological issues are, however, of great importance when using cut-off values to define poor vitamin D status. In addition, we demonstrated that low serum levels of 25(OH)D were associated with several lifestyle factors. (C) 2012 Elsevier Inc. All rights reserved.”
“Background: The aim of this study was to determine the ability to identify thrombus within the

left atrial appendage (LAA) in the setting of atrial fibrillation (AF) using transthoracic echocardiography (TTE). In AF, the structure and function of the LAA has historically Stem Cell Compound Library high throughput been evaluated using transesophageal echocardiography (TEE). The role of TTE remains undefined.\n\nMethods: The Comprehensive Left Atrial Appendage Optimization of Thrombus (CLOTS) multicenter study enrolled 118 patients (85 men; mean age, 67 6 13 years) with AF of >2 days in duration undergoing clinically indicated TEE. On TEE, the LAA was evaluated for mild spontaneous echo contrast (SEC), severe SEC, sludge, or thrombus. Doppler Tissue imaging (DTI) peak S-wave and E-wave velocities of the LAA walls (anterior, posterior, and apical) were acquired on TTE. Transthoracic echocardiographic harmonic imaging (with and without intravenous contrast) was examined to determine its ability to identify LAA SEC, sludge, or thrombus.\n\nResults: Among the 118 patients, TEE identified 6 (5%) with LAA sludge and 2 (2%) with LAA thrombi. Both LAA thrombi were identified on TTE using harmonic imaging with contrast. Anterior, posterior, and apical LAA wall DTI velocities on TTE varied significantly among the 3 groups examined (no SEC, mild SEC, severe SEC, sludge or thrombus).

Multivariate analysis showed that younger respondents ( smaller than 30 years of age) and active and inactive attendees were

more likely to report an HIV test compared with non-attendees; men were less likely to report HIV testing. Despite traveling Daporinad chemical structure farther for HIV services (median distance = 4.4 km), 77% of those disclosing HIV infection reported HIV care enrollment. Men and younger respondents were less likely to enroll in HIV care. Socioeconomic status was not associated with HIV service use. Distance did not appear to be the major barrier to service receipt. The health and demographic surveillance system data identified patterns of service use that are useful for future program planning.”
“The first structure of a bacterial alpha-phosphoglucomutase with an overall fold similar to eukaryotic phosphomannomutases is reported. Unlike most alpha-phosphoglucomutases within the alpha-D-phosphohexomutase

superfamily, it belongs to subclass IIb of the haloacid dehalogenase superfamily (HADSF). It catalyzes the reversible conversion of alpha-glucose 1-phosphate to glucose 6-phosphate. The crystal structure of alpha-phosphoglucomutase from Lactococcus lactis (APGM) was determined at 1.5 angstrom resolution and contains a sulfate and a glycerol bound at the enzyme active site that partially mimic the substrate. A dimeric form of APGM is present in the crystal and in solution, an arrangement that may be functionally relevant. The catalytic mechanism of APGM and its strict specificity GNS-1480 price towards alpha-glucose 1-phosphate are discussed.”
“Objective. To study the role of endogenous glucagon-like peptide-1 (GLP-1) on gastric AL3818 order emptying

rates of a solid meal as well as postprandial hormone secretion and glucose disposal. Material and methods. In nine healthy subjects, gastric emptying of a 310-kcal radio-labelled solid meal and plasma concentrations of insulin, glucagon and glucose were measured during infusion of saline or the GLP-1 receptor antagonist exendin(9-39)amide (Ex(9-39)) at 300 pmol center dot center dot kg<SU–1</SU center dot center dot min<SU–1</SU. Results. Ex(9-39) infusion had no effect on the total gastric emptying curve, but changed the intra-gastric distribution of the meal. During infusion of Ex(9-39), more content stayed in the upper stomach (79.1 +/-+/- 2.5% of total during Ex(9-39) compared to 66.6 +/-+/- 5.7% during saline at 5 min). During Ex(9-39) infusion, higher concentrations of plasma glucagon were measured both before (after 40 min of Ex(9-39) infusion the glucagon level was 15.1 +/-+/- 0.7 pmol center dot center dot L<SU–1</SU compared to 5.4 +/-+/- 1.4 during saline) and after the meal, and postprandial GLP-1 levels increased. Basal insulin and glucose levels were not affected by Ex(9-39), but the postprandial rise of insulin and glucose enhanced during Ex(9-39). Conclusions.