Publications by authors named "Norcross A"

Background: Lifestyle changes soon after diagnosis might improve outcomes in patients with type 2 diabetes mellitus, but no large trials have compared interventions. We investigated the effects of diet and physical activity on blood pressure and glucose concentrations.

Methods: We did a randomised, controlled trial in southwest England in adults aged 30-80 years in whom type 2 diabetes had been diagnosed 5-8 months previously.

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Raltegravir is an HIV-1 integrase strand transfer inhibitor with potent activity against HIV-1. A prior investigation of raltegravir coadministered with rifampin demonstrated a decrease in plasma concentrations of raltegravir likely secondary to induction of UGT1A1, the enzyme primarily responsible for the metabolism of raltegravir. Little is known regarding the induction of UGT1A1 by rifabutin, an alternate rifamycin.

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Caspofungin was the first in a new class of antifungal agents (echinocandins) indicated for the treatment of primary and refractory fungal infections. Higher doses of caspofungin may provide another option for patients who have failed caspofungin or other antifungal therapy. This study evaluated the safety, tolerability, and pharmacokinetics of single 150- and 210-mg doses of caspofungin in 16 healthy participants and 100 mg/d for 21 days in 20 healthy participants.

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Background: Distraction osteogenesis has become a standard therapy for lengthening of the human craniofacial skeleton. Because the technique is used predominately in a paediatric population, limiting the treatment protocol is beneficial.

Methods: Twenty-four animals were divided into four groups with distraction rates of 1mm and 2mm/day with and without hyperbaric oxygen (HBO) therapy.

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After oral treatment (once daily) for 4 weeks with the potent bradykinin B(1) receptor antagonist methyl 3-chloro-3'-fluoro-4'-{(1R)-1-[({1-[(trifluoroacetyl)amino]cyclopropyl}carbonyl)-amino]ethyl}-1,1'-biphenyl-2-carboxylate (MK-0686), rhesus monkeys (Macaca mulatta) exhibited significantly reduced systemic exposure of the compound in a dose-dependent manner, suggesting an occurrence of autoinduction of MK-0686 metabolism. This possibility is supported by two observations. 1) MK-0686 was primarily eliminated via biotransformation in rhesus monkeys, with oxidation on the chlorophenyl ring as one of the major metabolic pathways.

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Insulin autoantibody (IAA) microassays are widely used for predicting type 1 diabetes. As levels of IAA are often low in type 1 diabetes, non-specific binding (NSB) needs to be minimised if assays are to achieve high analytical sensitivity. IAA microassays use protein A Sepharose (PAS) or protein G Sepharose (PGS) to isolate the antibody-bound label, but NSB by the gel can differ between commercially-produced batches.

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Aims/hypothesis: The incidence of Type 1 diabetes shows little sex bias up to age 15 years, but more males are diagnosed in early adult life. Humoral responses to the beta cell antigen insulin could help to reveal the mechanism underlying this difference. We therefore determined the influence of sex on the prevalence of insulin autoantibodies (IAA) at diagnosis.

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Objective: To determine the extent of celiac autoimmunity in type 1 diabetic patients and the overlap between islet and celiac autoimmunity in their nondiabetic relatives.

Research Design And Methods: IgA antibodies to tissue transglutaminase were determined in serum taken from 433 type 1 diabetic patients and 1,442 nondiabetic first-degree relatives. Samples with transglutaminase antibodies above the 97.

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The use of the immunosuppressant cyclosporine A (CsA) is limited by its adverse renal effects. Most recently, we reported that the drug markedly decreases the levels of the calcium-binding protein calbindin-D 28kDa in kidneys of male Wistar rats. In the present study, the potential relationship between drug-induced nephrotoxicity and the decrease in kidney calbindin-D 28kDa was investigated.

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