This phenomenon is temporary and spontaneously improves after app

This phenomenon is temporary and spontaneously improves after approximately 10 min. The exact pathophysiological mechanism remains unclear and further studies are warranted to study the

long-term effects of acute CFR drop after use of DCB. (c) 2011 Wiley Periodicals, Inc.”
“Finely dispersed nanometre-scale gold particles are known to catalyse several oxidation reactions in aerobic, ambient conditions. The catalytic activity has been explained by various complementary mechanisms, including support effects, particle-size-dependent metal-insulator transition, learn more charging effects, frontier orbital interactions and geometric fluxionality. We show, by considering a series of robust and structurally well-characterized ligand-protected gold clusters with diameters between 1.2 and 2.4 nm, that electronic quantum size effects, particularly the magnitude of the so-called HOMO-LUMO energy gap, has a decisive see more role in binding

oxygen to the nano-catalyst in an activated form. This can lead to the oxidation reaction 2CO+O-2 -> 2CO(2) with low activation barriers. Binding of dioxygen is significant only for the smallest particles with a metal core diameter clearly below 2 nm. Our results suggest a potentially viable route to practical applications using ligand-protected gold clusters for green chemistry.”
“The aim of this meta-analysis was to summarise data from neuropsychological studies on inhibitory control to general and disease-salient (i.e., food/eating, body/shape) stimuli in bulimic-type eating disorders (EDs). A systematic literature search was conducted to identify eligible experimental studies. The outcome measures studied included the performance on established inhibitory control tasks in bulimic-type

EDs. Effect sizes (Hedges’ g) were pooled using random-effects models. For inhibitory control to general stimuli, 24 studies were included with a total of 563 bulimic-type ED patients: 439 had bulimia nervosa (BN), 42 had anorexia nervosa of the binge/purge subtype (AN-b), and 82 had binge eating disorder (BED). With respect to inhibitory control to disease-salient stimuli, 12 studies were included, representing a total of 218 BN patients. A meta-analysis of these studies showed decreased inhibitory control to general stimuli in bulimic-type EDs (g = -0.32). Subgroup analysis revealed impairments with a large effect in the AN-b Lonafarnib price group (g = -0.91), impairments with a small effect in the BN group (g = -0.26), and a non-significant effect in the BED group (g = -0.16). Greater impairments in inhibitory control were observed in BN patients when confronted with disease-salient stimuli (food/eating: g = -0.67; body/shape: g = -0.61). In conclusion, bulimic-type EDs showed impairments in inhibitory control to general stimuli with a small effect size. There was a significantly larger impairment in inhibitory control to disease salient stimuli observed in BN patients, constituting a medium effect size.

Thermal antinociception was measured using a radiant heat tail-fl

Thermal antinociception was measured using a radiant heat tail-flick assay; mechanical sensitivity was measured using von Frey filaments. Dose response curves were generated in naive mice and mice exposed to ethanol in a model of voluntary consumption.\n\nResults: We show that prolonged exposure to ethanol can promote an upregulation of functional DORs in the spinal cord in thermal pain-mediating circuits but not in those mediating mechanical sensitivity. The upregulated DORs either modulate MOR-mediated analgesia through

convergence of circuits or signal transduction pathways and/or interact directly with MORs to form a new functional (heteromeric) unit.\n\nConclusions: Our findings suggest that DORs selleck inhibitor could be a novel target

in conditions in which DORs are redistributed.”
“An efficient method for the preparation of a variety of 2-aminomethyl-1,3-dienes was developed through the reaction of imines with organoindium reagent generated in situ from indium and 1,3-dibromo-2-butyne. Three-component reactions of aldehydes, amines, and organoindium reagents gave successful results in a one-pot process.”
“The transferrin receptor (TfR) is one of the most attractive targets to overcome the blood-brain barrier (BBB). It has recently been shown that THRPPMWSPVWP binds to the TfR and is subsequently internalized into TfR-expressing cells. Here, ACY-241 we evaluated the ability of THRPPMWSPVWP to become internalized into human TfR-expressing

cells via endocytosis to determine its potential to act as a carrier system for the transport of small molecules across the BBB.\n\nTo validate the underlying concept of a conjugate consisting of a small brain imaging tracer and a large peptidic carrier molecule, a conjugate of the high affinity D2 receptor ligand fallypride and the TfR targeting peptide THRPPMWSPVWP has been synthesized. Furthermore, two derivatives of THRPPMWSPVWP were labeled with Ga-68 in high radiochemical yields (> 96%) and a radiochemical purity of 96-98% and evaluated in vitro and in vivo.\n\nThe fallypride-THRPPMWSPVWP conjugate still displayed a K Crenolanib nmr (i) of 27 nM. The uptake of the Ga-68-labeled peptides into TfR-bearing cells was investigated using U87MG and HT-29 cells to assess the capability of the peptide to act as a carrier molecule targeting the TfR. The in vitro binding studies revealed negligible uptake of the tested Ga-68-labeled conjugates ranging from 0.08% to 0.66% after 60 min incubation at 37A degrees C. Initial in vivo experiments with Ga-68-DOTA-S-maleimido-THRPPMWSPVWP in two healthy rats showed a mean brain uptake of 0.037% injected dose per gram, confirming the results obtained in vitro.

Leaves of butterhead lettuce Were placed in common polypropylene

Leaves of butterhead lettuce Were placed in common polypropylene bags and stored at 5, 10 and 15 degrees C. Periodically, a panel of six assessors evaluated the appearance of the samples, and a panel of 40 consumers evaluated their appearance and answered “yes” or “no” to the questions: “Imagine you are in a Supermarket, you want to buy a minimally processed lettuce, and you find a package of lettuce with leaves like this, would you normally buy it?” and “Imagine you have this leaf Of lettuce Stored in your refrigerator, would you normally 4EGI-1 consume it?”. Survival analysis was used to calculate the shelf lives of minimally processed lettuce, considering

both decision-making stages. Shelf lives estimated considering rejection to purchase were significantly lower than those estimated considering rejection to consume. Therefore, in order to be

conservative and assure the products’ quality, shelf life should be estimated considering consumers’ rejection to purchase instead of rejection to consume, as traditionally has been done. On the other hand, results from logistic regressions of consumers’ rejection percentage Lis a function of the evaluated appearance attributes suggested that consumers considered them differently while deciding whether to purchase or to consume minimally processed lettuce. (c) 2007 Elsevier Ltd. All rights reserved.”
“There is evidence that fibroblast growth factors (FGFs) are involved in find more the regulation of growth and regression of the corpus luteum (CL). However, the expression pattern of most FGF receptors (FGFRs) during CL lifespan is still unknown. The objective of the present study was to determine the pattern of expression of ‘B’ and ‘C’ splice variants of FGFRs in the bovine CL. Bovine CL were collected from an abattoir and classed as corpora hemorrhagica (Stage I), developing (Stage II), developed (Stage III) or regressed (Stage IV) CL. Expression of FGFR mRNA was measured by semiquantitative reverse Selleckchem GDC 0032 transcription-polymerase chain reaction and FGFR protein was localised by immunohistochemistry. Expression of mRNA encoding

the ‘B’ and ‘C’ spliced forms of FGFR1 and FGFR2 was readily detectable in the bovine CL and was accompanied by protein localisation. FGFR1C and FGFR2C mRNA expression did not vary throughout CL lifespan, whereas FGFR1B was upregulated in the developed (Stage III) CL. FGFR3B, FGFR3C and FGFR4 expression was inconsistent in the bovine CL. The present data indicate that FGFR1 and FGFR2 splice variants are the main receptors for FGF action in the bovine CL.”
“Currently, ingenious new analytical and process experimental techniques which are environmentally benign techniques, viz., ultrasound irradiation, have become immensely popular in promoting various reactions. In this work, a novel soluble multi-site phase transfer catalyst (PTC) viz.

The PLS model allowed for predicting the transport of target anio

The PLS model allowed for predicting the transport of target anions using only operational physicochemical data, therefore, the use of several assumptions as in mechanistic model building was avoided as well

as the need for biofilm characterization. To decrease the model complexity, several techniques which select the most informative predictors were also successfully used. The analyses of important predictors to each anionic transport model show that transport driving force related variables were the most important. Moreover, at least 30% of the model information is related with biocompartment bulk variables. (C) 2011 Elsevier Ltd. All rights reserved.”
“Neuronal loss and axonal degeneration are important pathological features of many neurodegenerative diseases. The molecular mechanisms underlying the majority of axonal degeneration PP2 price conditions remain unknown. To better understand axonal degeneration, we studied a mouse mutant wabbler-lethal (wl). Wabbler-lethal

(wl) mutant mice develop progressive ataxia with pronounced neurodegeneration in the central and peripheral nervous system. Previous studies have led to a debate as to whether myelinopathy or axonopathy is the primary cause of neurodegeneration observed Epigenetics inhibitor in wl mice. Here we provide clear evidence that wabbler-lethal mutants develop an axonopathy, and that this axonopathy is modulated by Wld(s) and Bax mutations. In addition, we have identified the gene harboring the disease-causing mutations as Atp8a2. We studied three wl alleles and found that all result from mutations in

the Atp8a2 gene. Our analysis shows that ATP8A2 possesses phosphatidylserine translocase activity and is involved in localization of phosphatidylserine to the inner leaflet of the plasma membrane. Atp8a2 is widely expressed in the brain, spinal cord, and retina. We assessed two of the mutant alleles of Atp8a2 and found they are both nonfunctional for the phosphatidylserine translocase activity. Thus, our data demonstrate Adavosertib for the first time that mutation of a mammalian phosphatidylserine translocase causes axon degeneration and neurodegenerative disease.”
“The pH dependent opening and closure of Escherichia coli OmpG is driven by the formation and breaking of hydrogen bridges in beta-strands S11-S13. We have investigated the in situ secondary structural changes of OmpG with ATR-FTIR difference spectroscopy in order to detect the signals associated with the newly established interactions. Curve-fitting of OmpG in two pH conditions revealed the splitting and shifting of beta-sheet signals upon opening of the channel. Besides secondary structure changes, there are also amino acid side chain signals that play active role in opening/closing of the channel.

0 real-time PCR machine (Roche Diagnostics, Mannheim, Germany) T

0 real-time PCR machine (Roche Diagnostics, Mannheim, Germany). The results were read at 530 and 640 nm for BVDV 1 and 2, respectively. Bovine viral diarrhoea virus was detected in a total of 103 samples that included 91 tissue samples, 1 blood sample and 11 trans-tracheal aspirates. Eighty-five (82.5 %) of the strains were genotype 1 and 18 (17.5 %) were genotype 2. Comparing the sequencing data, genotypes 1 and 2 from the field strains did not cluster with vaccine strains currently used in feedlots in South Africa. The present this website study

revealed the presence of BVDV genotype 2 in cattle in South Africa based on the high sequence similarity between genotype 2 field strains and strain 890 from North America. The presence of genotype 2 viruses that phylogenetically belong to different clusters and coexist in feedlots is consistent with the possibility of multiple virus introductions. These results represent the first documented evidence for the presence of BVDV genotype 2 in African cattle.”
“Chemically mediated synaptic transmission results from fusion

of synaptic vesicles with the presynaptic plasma membrane, subsequent release of the vesicular content into the cleft and binding to postsynaptic receptors. Previous modelling studies of excitatory neurotransmitter glutamate were based on simplified geometries failing to account for the biologically realistic synaptic environment, in particular, the presence of astrocytes, the geometry of extracellular MCC950 supplier space, and the neurotransmitter

uptake mechanism. Using 3-dimensional reconstructions of hippocampal glutamatergic synapses including the surrounding astrocytic processes we have developed a biologically realistic model to analyse receptor activation in different conditions. We used the finite element method to simulate glutamate release, analyse glutamate diffusion following single and multiple vesicle release and binding at the postsynaptic site to AMPA and NMDA receptors. We demonstrate that: (1) the transmitter diffusion is highly temperature-sensitive; (2) release conditions and geometry more specifically affect AMPARs than NMDARs; (3) the sensitivities of AMPARs and NMDARs to simultaneous p53 inhibitor vesicular release are different; (4) in the case of multivesicle neurotransmitter release with variable delays, the binding of glutamate to AMPARs is additive up to 1 ms after the release, then becomes independent, but to NMDARs the binding is additive up to 33 ms; (5) the number of AMPARs varies more than the number of NMDRs in response to the input firing patterns; (6) the presence of astrocytes effectively blocks synaptic crosstalk; and (7) synaptic cross-talk, mediated by NMDARs but not AMPARs, is only possible after quasi-simultaneous multivesicular release at physiological temperature (35 degrees C) without intervening astrocytes, but not at 25 degrees C.

The GFEM solution of a functionally graded thin rotating annular

The GFEM solution of a functionally graded thin rotating annular disk has been compared with the published literature and it shows good agreement.”
“A selective kanamycin-binding single-strand DNA (ssDNA) aptamer (TGGGGGTTGAGGCTAAGCCGA) was discovered through in vitro selection using affinity chromatography with kanamycin-immobilized sepharose beads. The selected 17DMAG price aptamer has a high affinity for kanamycin and also for kanamycin derivatives such as kanamycin B and tobramycin. The dissociation constants (K(d) [kanamycin] = 78.8 nM, K(d) [kanamycin B] = 84.5 nM, and K(d) [tobramycin] = 103 nM) of the new aptamer were determined

by fluorescence intensity analysis using 5′-fluorescein amidite (FAM) modification. Using this aptamer, kanamycin was detected

down to 25 nM by the gold nanoparticle-based colorimetric method. Because the designed colorimetric method is simple, easy, and visible to the naked eye, it has advantages that selleck chemicals make it useful for the detection of kanamycin. Furthermore, the selected new aptamer has many potential applications as a bioprobe for the detection of kanamycin, kanamycin B, and tobramycin in pharmaceutical preparations and food products. (C) 2011 Elsevier Inc. All rights reserved.”
“Background: The inability to store fearful memories into their original encoding context is considered to be an important vulnerability factor for the development of anxiety disorders like posttraumatic stress disorder. Altered memory contextualization most likely involves effects of the stress hormone cortisol, acting via receptors located in the memory neurocircuitry. Cortisol via these receptors

induces rapid nongenomic effects followed by slower genomic effects, which are thought to modulate cognitive function in opposite, complementary ways. Here, we targeted these time-dependent effects of cortisol during memory encoding and tested subsequent selleck chemical contextualization of emotional and neutral memories.\n\nMethods: In a double-blind, placebo-controlled design, 64 men were randomly assigned to one of three groups: 1) received 10 mg hydrocortisone 30 minutes (rapid cortisol effects) before a memory encoding task; 2) received 10 mg hydrocortisone 210 minutes (slow cortisol) before a memory encoding task; or 3) received placebo at both times. During encoding, participants were presented with neutral and emotional words in unique background pictures. Approximately 24 hours later, context dependency of their memories was assessed.\n\nResults: Recognition data revealed that cortisol’s rapid effects impair emotional memory contextualization, while cortisol’s slow effects enhance it. Neutral memory contextualization remained unaltered by cortisol, irrespective of the timing of the drug.

The recognition that the vascular endothelial growth factor (VEGF

The recognition that the vascular endothelial growth factor (VEGF) pathway is a key regulator of angiogenesis has led to the development of several VEGF-targeted approaches. These include neutralizing antibodies, VEGF traps or selective tyrosine kinase inhibitors for VEGFRs. Other drugs that indirectly affect VEGF pathway, such as statins or arsenic trioxide, also have been shown to possess antiangiogenic CAL-101 concentration activity in leukemias. The benefits of these VEGF targeted agents and their current stage of development as novel anti-antiangiogenic

therapies in AML are discussed in this review. (C) 2010 Elsevier Ireland Ltd. All rights reserved.”
“Two cases of postoperative intraocular lens (IOL) calcification in patients implanted with the Akreos Adapt IOL at the time of combined phacovitrectomy are described, along with clinical

review of all patients implanted with this IOL type at our institution between November 2006 and September 2008. The IOLs explanted from the 2 cases were examined using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The SEM of the explanted IOLs showed crystalline anterior surface and subsurface deposits; Ferroptosis inhibitor review by EDX, the deposits showed high concentrations of calcium and phosphorous, consistent with calcium apatite. Twenty patients (20 eyes) attended for cohort review, and none showed IOL opacification. The reason calcification occurred in the 2 cases remains unknown, but clinicians should be aware of this potential complication.”
“Background: Worldwide, cardiovascular (CV) disease remains the most common cause of morbidity and mortality. Although effective in predicting CV risk in select populations, the Framingham risk score (FRS) fails to identify many young ARN-509 price individuals who experience premature CV events. Accordingly, the aim of this study was to determine the prevalence of high-risk carotid intima-media thickness (CIMT) or plaque, a marker of atherosclerosis

and predictor of CV events, in young asymptomatic individuals with low and intermediate FRS (<2% annualized event rate) using the carotid ultrasound protocol recommended by the American Society of Echocardiography and the Society of Vascular Medicine.\n\nMethods: Individuals aged <= 65 years not taking statins and without diabetes mellitus or histories of coronary artery disease underwent CIMT and plaque examination for primary prevention. Clinical variables including lipid values, family history of premature coronary artery disease, and FRS and subsequent pharmacotherapy recommendations were retrospectively collected for statistical analysis.\n\nResults: Of 441 subjects (mean age, 49.7 +/- 7.9 years), 184 (42%; 95% confidence interval, 37.3%-46.5%) had high-risk carotid ultrasound findings (CIMT >= 75th percentile adjusted for age, gender, and race or presence of plaque).

Inevitably, due to increased survival and associated resource iss

Inevitably, due to increased survival and associated resource issues, opportunities for follow-up and support will be reduced. We delivered and evaluated an intervention which supported the transition from cancer patient to cancer survivor, for breast cancer patients being discharged to primary care. Methods: We delivered and evaluated a pilot of a patient-centred group intervention ‘Preparing Patients for Discharge’, aimed at reducing distress. Between January and September 2008,

172 participants were recruited and 74 (43%) expressed an interest in participating in the intervention; 32 of 74 took part, and participated in its evaluation using a semi-structured evaluation questionnaire, standardized measures [Hospital Anxiety P5091 clinical trial and Depression Scale (HADS) and Clinical Outcomes Vadimezan for Routine Evaluation (CORE)] and independent qualitative interviews. Results: The qualitative analysis of questionnaire data indicated key factors were 1) shared experience, 2) support and reassurance, and 3) positive views about cancer and being discharged. The interview data revealed that the intervention enabled participants to: share

experiences, focus on emotional needs, and have open discussions about recurrence, while increasing confidence in being discharged and using alternative support services. However, no significant differences were found in pre-post-interventions scores of HADS and CORE. Conclusions: Providing a structured group MK-2206 supplier intervention approach for breast cancer patients offers an early opportunity to support cancer survivors and facilitate and encourage self-management. (C) 2013 Elsevier Ltd. All rights reserved.”
“Background/Aims: Rapid hepatic recurrence is sometimes experienced after gastric or pancreatobiliary cancer surgery. The aim of this study was to investigate the risk factors for the timing of hepatic recurrence.\n\nMethodology: The medical records of 20 patients who had hepatic

recurrence after either a gastrectomy for gastric cancer (11 patients) or a pancreatoduodenectomy for pancreatobiliary cancer (9 patients) between 2002 and 2007 were retrospectively reviewed. The cumulative recurrence rate of liver metastasis was calculated using the Kaplan-Meier method, and 14 possible factors affecting the rapid hepatic recurrence were analyzed by univariate and multivariate analyses.\n\nResults: The median time for the hepatic recurrence after the operation was 4.9 months (range 1 to 20.4 months). Among 1.4 factors, only postoperative infectious complications significantly accelerated the hepatic recurrence based on a univariate analysis (p=0.049). Two more factors, gastric cancer and preoperative tumor marker elevation, had a tendency to affect the rapid recurrence, but did not show statistical significance (both p=0.06). A multivariate analysis revealed that postoperative infectious complications (p=0.005) and gastric cancer (p=0.04) were significant and independent factors.

29 mu M as regard to Doxorubicin (IC50 = 7 36 mu M) Concerning t

29 mu M as regard to Doxorubicin (IC50 = 7.36 mu M). Concerning the antibacterial activity, compounds 3m and 3z exerted remarkable activity against the tested bacterial species compared to Ampicillin, whereas compound 6c showed good activity against only Gram positive species. (C) 2013 Elsevier Masson SAS. All rights reserved.”
“Recent evidence has suggested an association between microalbuminuria and ultrasound-diagnosed nonalcoholic fatty liver disease (NAFLD) in patients with diabetes and

prediabetes However, few data are available on the occurrence of microalbuminuria in nondiabetic subjects with histologically proven NAFLD VS-6063 datasheet We thus evaluated the relationships between microalbuminuria and liver histology in a hospital-based sample of 87 adults with biopsy-proven NAFLD from Turkey An albumin excretion rate less than 30 mg/d was considered within the reference range, whereas an albumin excretion rate from 30 to 300

mg/d was considered to indicate microalbuminuria Compared with those without microalbuminuria (n = 73), NAFLD patients with microalbuminuria (n = 14) had significantly higher homeostasis model assessment of insulin resistance values (3 9 +/- 1 3 vs 5 8 +/- 3 7, P < 001) There were no differences in the prevalence of microalbuminuria in patients with definite nonalcoholic steatohepatitis, borderline nonalcoholic steatohepatitis, and simple fatty liver In the entire study cohort, mean fibrosis scores were significantly higher in patients with microalbuminuria Selleck CT99021 than in those without (1 27 +/- 0.26 vs 0 80 +/- 0 11, P < 05) This difference persisted after adjustment for potential see more confounders These results indicate the presence of a significant association between the seventy of insulin resistance and microalbuminuria in patients with NAFLD In addition, microalbuminuria may identify NAFLD patients with higher fibrosis scores (C) 2010 Elsevier Inc. All rights reserved”
“Phytocannabinoids are useful therapeutics for multiple applications including treatments

of constipation, malaria, rheumatism, alleviation of intraocular pressure, emesis, anxiety and some neurological and neurodegenerative disorders. Consistent with these medicinal properties, extracted cannabinoids have recently gained much interest in research, and some are currently in advanced stages of clinical testing. Other constituents of Cannabis sativa, the hemp plant, however, remain relatively unexplored in vivo. These include cannabidiol (CBD), cannabidivarine (CBDV), Delta(9)-tetrahydrocannabivarin (Delta(9)-THCV) and cannabigerol (CBG).\n\nWe here determined pharmacokinetic profiles of the above phytocannabinoids after acute single-dose intraperitoneal and oral administration in mice and rats. The pharmacodynamic-pharmacokinetic relationship of CBD (120 mg/kg, ip and oral) was further assessed using a marble burying test in mice.

We reviewed the subset of patients who underwent urgent surgery f

We reviewed the subset of patients who underwent urgent surgery for tumor growth resulting in cardiopulmonary deterioration secondary to mediastinal compression precluding safe completion of 4 cisplatin-based chemotherapy cycles with rapidly declining serum tumor markers.\n\nResults: Five men (2.6%) with an average age of 25.8 years were identified. All patients initially presented with a large symptomatic anterior mediastinal mass and elevated serum tumor markers. Patients received an average of 2.4 chemotherapy cycles of a scheduled 4 courses before cardiopulmonary deterioration. Pathology

of the resected specimens demonstrated mature teratoma in all patients; however, it was admixed in 4 patients with foci of immaturity (n = 1), malignant transformation of teratoma to sarcoma (n = 2), and nonseminomatous germ cell tumor (n = 2). There was 1 operative

death. Three of the 4 operative survivors Cytoskeletal Signaling inhibitor subsequently completed a total of 4 cycles of chemotherapy after recovery. Two patients are alive and well after an average of 14 years. Two patients died of metastatic AZ 628 disease.\n\nConclusions: The growing teratoma syndrome should be defined not only as a growing mediastinal mass but also with secondary cardiopulmonary deterioration precluding safe completion of planned chemotherapy in the presence of declining serum tumor markers. Prompt recognition of this syndrome, discontinuation of chemotherapy, and surgical intervention can result in cure. (J Thorac Cardiovasc Surg 2012;144:438-43)”
“Suzuki-Miyaura cross-couplings of arenediazonium salts with arylboronic acids catalyzed by highly active aluminium hydroxide-supported palladium nanoparticles catalyst have been investigated for the first time. The reactions are performed at 25 degrees C in MeOH without any base and

ligand to afford biaryls in good to excellent yields under non-anhydrous and non-degassed conditions.”
“Objective: The purpose of the study was to compare bedside ultrasound (US) and panorex radiography in the diagnosis of PF-00299804 a dental abscess in emergency department (ED).\n\nMethods: A retrospective review of ED records of adult patients with atraumatic facial pain, swelling, and toothache who received a panorex x-ray and bedside US was performed. Medical records were reviewed for ED evaluation and disposition. Sensitivity and specificity of US and panorex x-ray were calculated to determine the clinical utility of the 2 tests.\n\nResults: A total of 19 patients were identified. No periapical abscess was reported on panorex x-rays in 7 (37%) of 19 patients. Ultrasound agreed with panorex x-rays in 6 (86%) of 7 cases. One case where US disagreed with x-rays was evaluated by dentistry consultants; and incision and drainage were performed, confirming the presence of an abscess. An x-ray diagnosis of periapical abscess was made in 12 (63%) of 19 patients.