Knowledge of broad-scale global patterns in beta diversity (i.e., variation or turnover in identities of species) for marine systems is in its infancy. We analysed the beta diversity of groundfish communities along the North American Pacific coast, from trawl data spanning 32.57°N to 48.52°N and 51 m to 1200 m depth. Analyses were based on both the Jaccard measure and the probabilistic Raup-Cri...

BACKGROUND Controversy remains regarding the effectiveness of bronchodilators in wheezy infants. AIMS To assess the effect of inhaled beta(2) agonists on lung function in infants with malacia or recurrent wheeze, and to determine whether a negative effect of beta(2) agonists on forced expiratory flow (V'(maxFRC)) is more pronounced in infants with airway malacia, compared to infants with whee...

BACKGROUND Diabetes is an important reason for end-stage renal failure and diabetic foot wounds worsen the life qualities of these patients. Protein and amino acid support accelerates the wound healing. The purpose of this retrospective study is to examine the effect of beta-hydroxy-beta-methylbutyrate, arginine and glutamine (Abound) supplementation on the wound healing. METHODS A total of 1...

AIMS To evaluate the effect of beta-blockers in children with long QT syndrome (LQTS) we reviewed the outcome of 122 patients (pts). METHODS LQTS was diagnosed in 24 neonates and in 98 pts aged 0.5-15 years. Diagnosis was made because of syncope in 51 pts, bradycardia in 10 neonates and family history in 61 pts. The longest QTc ranged from 400 to 700 ms. Thirteen pts had 2:1 atrioventricular ...

Quantitation of target mRNAs using the reverse-transcription polymerase chain reaction found a widespread field of application in diverse biomedical diagnostic assays. However, the problem of varying sample quality has to be solved by correcting target molecule amounts through detection of an endogenous control template. The choice of an appropriate reference gene is still object of debate as p...

Selective deletion of mature peripheral V beta 2+ T-cells was observed in BALB/c mice implanted with the syngeneic C4 preneoplastic hyperplastic alveolar nodule (HAN) but not in mice with sham surgery (W. Z. Wei, R. Ficsor-Jacobs, S. J. Tsai, and R. Pauley, Cancer Res., 51:3331-3333, 1991). We now report the participation of host cells in that process. Peripheral V beta 2+ T-cells were reduced ...

The overexpression of c-myc frequently accompanies the relapse of small cell lung cancer (SCLC) cells and contributes to the poor prognosis of this tumor. In this study, we confirm that transfected c-myc results in decreased homotypic cell aggregation and increased proliferative capacity of SCLC cells when nutrient conditions are adequate. We also find that c-myc contributes to apoptosis when c...

BACKGROUND Despite the evidence supporting the importance of early beta-blocker therapy, this intervention has received little attention as an indicator of quality of care. OBJECTIVES To determine how often beta-blockers are administered as early treatment of acute myocardial infarction in patients 65 years of age or older, to identify predictors of the decision to use beta-blockers, and to e...