Risk of mortality associated with formoterol: a systematic review and meta-analysis.

There is concern long-acting beta-agonist (LABA) drugs may increase the risk of asthma mortality. We undertook a systematic review which included the AstraZeneca Formoterol Clinical Trial Safety Database and Novartis Food and Drug Administration Formoterol Briefing Document. Randomised controlled clinical trials of duration > or = 4 weeks that compared formoterol with a non-LABA comparator treatment in asthma were included in a meta-analysis of the risk of all-cause mortality and asthma death.

Saccade adaptation specific to visual context.

When saccades consistently overshoot their targets, saccade amplitudes gradually decrease, thereby maintaining accuracy. This adaptive process has been seen as a form of motor learning that copes with changes in physical parameters of the eye and its muscles, brought about by aging or pathology. One would not expect such a motor-repair mechanism to be specific to the visual properties of the target stimulus.

Mental health services for preschool children in primary care: a survey of maternal attitudes and beliefs.

Objective: This study examined maternal attitudes and practices that may prevent preschoolers from receiving needed mental health services.

Methods: Mothers of 110 children ages 3-6 completed a survey of maternal attitudes and practices and the Eyberg Child Behavior Inventory (ECBI).

Results: Mothers wanted pediatrician assistance with child behavior concerns.

The risk of asthma mortality with inhaled long acting beta-agonists.

This article reviews the available evidence as to whether inhaled long acting beta-agonists (LABA) increase the risk of asthma mortality and considers the implications for the use of this treatment in the management of asthma. Randomised controlled trials suggest that LABAs prescribed as monotherapy may increase the risk of asthma death in certain circumstances, such as the unsupervised "off-label" use without concomitant inhaled corticosteroid (ICS) treatment in patients with unstable asthma. However, there is also evidence that the use of LABAs in conjunction with ICS treatment in adult asthma as recommended in current guidelines is not associated with an increased risk of asthma mortality.

Participants' perspectives on cognitive-behavioral therapy for adherence and depression in HIV.

As part of the process of developing cognitive-behavioral therapy (CBT) for medical adherence and depression (Safren, Gonzalez, & Soroudi, 2007), the authors conducted exit interviews among 14 HIV-infected patients who received the intervention, and transcribed, coded, and analyzed these data. The authors concluded that CBT was structured yet flexible, developed self-awareness emphasized social support, and involved therapist empathy and supportiveness. Limitations included the discomfort of discussing personal information and the impact of feeling ill on attendance and homework completion.

Evaluation of the potential in vivo genotoxicity of quercetin.

Quercetin, a naturally occurring flavonol commonly detected in apples, cranberries, blueberries, and onions, has been reported to possess antioxidant, anti-carcinogenic, anti-inflammatory, and cardioprotective properties. While positive results have been consistently reported in numerous in vitro mutagenicity and genotoxicity assays of quercetin, tested in vivo, quercetin has generally produced negative results in such studies. Furthermore, no evidence of carcinogenicity related to the oral administration of quercetin was observed in chronic rodent assays.

Cannabis use and cancer of the head and neck: case-control study.

Objective: To investigate whether cannabis smoking increases the risk of head and neck cancer.

Design: Case-control study.

Subjects And Methods: Cases of head and neck cancer < or =55 years identified from hospital databases and the Cancer Registry, and controls randomly selected from the electoral roll completed interviewer-administered questionnaires.

Parent and teacher SNAP-IV ratings of attention deficit hyperactivity disorder symptoms: psychometric properties and normative ratings from a school district sample.

To examine Swanson, Nolan, and Pelham-IV (SNAP-IV) psychometric properties, parent (N = 1,613) and teacher (N = 1,205) data were collected from a random elementary school student sample in a longitudinal attention deficit hyperactivity disorder (ADHD) detection study. SNAP-IV reliability was acceptable. Factor structure indicated two ADHD factors and an oppositional defiant disorder (ODD) factor.

Cannabis use and risk of lung cancer: a case-control study.

The aim of the present study was to determine the risk of lung cancer associated with cannabis smoking. A case-control study of lung cancer in adults View Article and Find Full Text PDF

The spatial scale of attention strongly modulates saccade latencies.

We have previously shown that when a stimulus consisting of two concentric rings moves, saccade latencies are much longer (by 150 ms) when attention is directed to the larger ring than to the smaller ring. Here, we investigated whether this effect can be explained by a deferral of the "cost" of making a saccade while the target remains inside the attentional field, or by purely visual factors (eccentricity or contrast). We found 1) latencies were shorter when attention was directed to small features irrespective of retinal eccentricity; 2) saccade latency distributions were systematically determined by the ratio between the amplitude of the stimulus step and the diameter of the attended ring: stimulus steps that were larger than the attended ring resulted in short latencies, whereas steps smaller than the attended ring resulted in proportionally longer and more variable latencies; 3) this effect was not seen in manual reaction times to the same target movement; and 4) suprathreshold changes in the contrast of targets, mimicking possible attentional effects on perceived contrast and saliency, had little effect on latency.

Melanoma and squamous cell carcinoma on different nails of the same hand.

Nail dyschromia, including melanonychia and erythronychia, encompasses a wide range of possible diagnoses. While the majority of these lesions are benign, malignancies of the nail unit represent a sinister, and potentially life-threatening, cause of nail dyschromia. Unfamiliarity with tumors of the nail apparatus can lead to a delay in diagnosis.

Exertional leg pain: teasing out arterial entrapments.

Vascular causes of exertional lower extremity pain are relatively rare, but may be the answer in athletes refractory to treatment for the more common overuse syndromes of the lower extremities. It is important to differentiate these vascular causes from chronic exertional compartment syndrome (CECS), medial tibial stress syndrome (MTSS), and stress fractures in order to develop appropriate treatment plans, avoid complications, and return athletes to play expeditiously. Important vascular etiologies to be considered are popliteal artery entrapment syndrome (PAES), endofibrotic disease, popliteal artery aneurysm, cystic adventitial disease, and peripheral arterial dissections.

Investigation of regional mechanisms responsible for poor oral absorption in humans of a modified release preparation of the alpha-adrenoreceptor antagonist, 4-amino-6,7-dimethoxy-2-(5-methanesulfonamido-1,2,3,4 tetrahydroisoquinol-2-yl)-5-(2-pyridyl)quinazoline (UK-338,003): the rational use of ex vivo intestine to predict in vivo absorption.

Modified release (MR) formulations are used to enhance the safety and compliance of existing drugs by improving their pharmacokinetics. Predicting the likely success of MR formulations is often difficult before clinical studies. A systematic in vitro approach using mouse and human tissues was adopted to rationalize the in vivo pharmacokinetics of 9- and 15-h MR formulations of an alpha-adrenoreceptor antagonist, 4-amino-6,7-dimethoxy-2-(5-methanesulfonamido-1,2,3,4 tetrahydroisoquinol-2-yl)-5-(2-pyridyl)quinazoline (UK-338,003).

A critical review of the data related to the safety of quercetin and lack of evidence of in vivo toxicity, including lack of genotoxic/carcinogenic properties.

Quercetin is a naturally-occurring flavonol (a member of the flavonoid family of compounds) that has a long history of consumption as part of the normal human diet. Because a number of biological properties of quercetin may be beneficial to human health, interest in the addition of this flavonol to various traditional food products has been increasing. Prior to the use of quercetin in food applications that would increase intake beyond that from naturally-occurring levels of the flavonol in the typical Western diet, its safety needs to be established or confirmed.

Toxicological assessment of a particulate yeast (1,3/1,6)-beta-D-glucan in rats.

This study investigates the toxicity of WGP 3-6, a yeast-derived beta-glucan ingredient, during single-dose acute and sub-chronic toxicity studies in rats. For the acute study, Fisher-344 rats were administered WGP 3-6 via gavage at a dose of 2000 mg/kg body weight, and any evidence of toxicity was monitored over a 14-day period. WGP 3-6 was well tolerated, indicating that the LD(50) value is greater than 2000 mg/kg body weight.

Cell cycle-dependent characterization of single MCF-7 breast cancer cells by 2-D CE.

The composition of single MCF-7 breast cancer cells is characterized using 2-D CE. Individual MCF-7 cells were aspirated into a 30 mum inner diameter fused-silica capillary and lysed by contact with an SDS-containing buffer. Proteins and other primary amines were fluorescently labeled on-column using the fluorogenic dye 3-(2-furoyl)quinoline-2-carboxaldehyde.

Sonographically guided percutaneous needle tenotomy for treatment of common extensor tendinosis in the elbow.

Objective: Chronic tendinosis of the common extensor tendon of the lateral elbow can be a difficult problem to treat. We report our experience with sonographically guided percutaneous needle tenotomy to relieve pain and improve function in patients with this condition.

Methods: We performed sonographically guided percutaneous needle tenotomy on 58 consecutive patients who had persistent pain and disability resulting from common extensor tendinosis.

Reproducible two-dimensional capillary electrophoresis analysis of Barrett's esophagus tissues.

We have constructed a high-speed, two-dimensional capillary electrophoresis system with a compact and high-sensitivity fluorescence detector. This instrument is used for the rapid and reproducible separations of Barrett's esophagus tissue homogenates. Proteins and biogenic amines are labeled with the fluorogenic reagent 3-(2-furoyl)quinoline-2-carboxaldehyde.

Infant saccades are not slow.

Saccadic eye movements are essential for redirecting the fovea at different visual targets. In adults and children saccades are remarkably stereotyped. Peak velocity and duration of saccades are a simple function of saccade amplitude called the 'main sequence'.

Single-cell protein analysis of a single mouse embryo by two-dimensional capillary electrophoresis.

The characterization of protein expression from a single-cell mouse embryo using two-dimensional capillary electrophoresis (2D-CE) is described. These zygotes were obtained from Hsf1 gene knockout mice. Single zygotes were lysed off-column and proteins were fluorescently labeled using the fluorogenic dye 3-(2-furoyl)quinoline-2-carboxaldehyde (FQ).

Child-directed interaction: prediction of change in impaired mother-child functioning.

The first phase of parent-child interaction therapy (PCIT), called child-directed interaction, teaches parents to use positive and differential social attention to improve the parent-child relationship. This study examined predictors of change in mother and child functioning during the child-directed interaction for 100 mother-child dyads. The children were 3-6-years-old and diagnosed with oppositional defiant disorder.