Publications by authors named "Ormrod D"

The misleading and propagandistic tendencies in American news reporting have been a part of public discussion from its earliest days as a republic (Innis, 2007; Sheppard, 2007). "Fake news" is hardly new (McKernon, 1925), and the term has been applied to a variety of distinct phenomenon ranging from satire to news, which one may find disagreeable (Jankowski, 2018; Tandoc et al., 2018).

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Levosalbutamol is a chirally pure beta(2)-adrenoceptor agonist developed from racemic salbutamol. The therapeutically inactive (S)-enantiomer in racemic salbutamol may be associated with increased airway hyperreactivity in patients with asthma. Levosalbutamol aims to provide equivalent control of symptoms to salbutamol but without this potential unfavourable effect.

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Estradiol-intranasal is a nasal spray formulation containing an aqueous solution of 17beta-estradiol that has a unique pulse-like pharmacokinetic profile. In a well designed, placebo-controlled trial estradiol-intranasal 200 to 400 microg/day significantly reduced the incidence and severity of climacteric symptoms in women with moderate to severe menopausal symptoms after 4 and 12 weeks' treatment. The efficacy of estradiol-intranasal 300 microg/day was similar to that of oral estradiol 2 mg/day in this and another double-blind placebo-controlled trial.

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Context: Chitosan, a deacetylated chitin, is a widely available dietary supplement purported to decrease body weight and serum lipids through gastrointestinal fat binding. Although evaluated in a number of trials, its efficacy remains in dispute.

Objective: To evaluate the efficacy of chitosan for weight loss in overweight and obese adults.

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Patterns of environmental change in the biosphere include concurrent and sequential combinations of increasing ultraviolet (UV-B) and ozone (O(3)) at increasing carbon dioxide (CO(2)) levels; long-term changes are resulting mainly from stratospheric O(3) depletion, greater tropospheric O(3) photochemical synthesis, and increasing CO(2) emissions. Effects of selected combinations were evaluated in tomato (Lycopersicon esculentum cv. New Yorker) seedlings using sequential exposures to enhanced UV-B radiation and O(3) in differential CO(2) concentrations.

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The prodrug fenofibrate, a synthetic phenoxy-isobutyric acid derivative, is rapidly hydrolyzed in vivo to form fenofibric acid, which alters plasma lipid levels by activating the peroxisome proliferator-activated receptor alpha. The micronized fenofibrate 200 mg capsule formulation, and the recently developed micronized fenofibrate 160 mg tablet formulation, are bioequivalent. Micronized fenofibrate 200 mg/day (capsules) increased high density lipoprotein cholesterol (HDL-C) levels significantly from baseline in up to 7098 patients with various dyslipidemias in noncomparative studies.

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In ten large, well-controlled, randomised trials (n = 203 to 1089), valdecoxib, a selective inhibitor of cyclo-oxygenase-2, was significantly more effective than placebo in the treatment of osteoarthritis, rheumatoid arthritis and pain associated with primary dysmenorrhoea, and for postsurgical analgesia. Valdecoxib 1.25 to 10mg twice daily and valdecoxib 10mg once daily were more effective than placebo for the relief of pain in patients with osteoarthritis of the knee, and dosages above 5mg twice daily were similar in efficacy to naproxen 500mg twice daily.

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Micronised fenofibrate is a synthetic phenoxy-isobutyric acid derivative (fibric acid derivative) indicated for the treatment of dyslipidaemia. Recently, a new tablet formulation of micronised fenofibrate has become available with greater bioavailability than the older capsule formulation. The micronised fenofibrate 160mg tablet is bioequivalent to the 200mg capsule.

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Unlabelled: Zidovudine is a thymidine analog that, after intracellular phosphorylation to zidovudine triphosphate metabolite, inhibits HIV-specific reverse transcriptase and terminates proviral DNA. Zidovudine administered to mildly symptomatic women with HIV infection in the antepartum (100mg orally 5 times/day), intrapartum (2 mg/kg intravenously over 1 hour then 1 mg/kg/h) and then to the neonate for 6 weeks (2 mg/kg), significantly reduced the rate of vertical HIV transmission by about two thirds, in the absence of breast-feeding (The Pediatric AIDS Clinical Trials Group 076 trial, standard protocol). Shorter zidovudine regimens, reduced the risk of transmission of HIV by 50% in a non-breast-feeding population and by about 37% in breast-feeding populations.

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Paroxetine is a selective serotonin reuptake inhibitor (SSRI), with antidepressant and anxiolytic activity. In 6- to 24-week well designed trials, oral paroxetine 10 to 50 mg/day was significantly more effective than placebo, at least as effective as tricyclic antidepressants (TCAs) and as effective as other SSRIs and other antidepressants in the treatment of major depressive disorder. Relapse or recurrence over 1 year after the initial response was significantly lower with paroxetine 10 to 50 mg/day than with placebo and similar to that with imipramine 50 to 275 mg/day.

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Vardenafil selectively inhibits phosphodiesterase type 5 (PDE5), an enzyme which hydrolyses cyclic guanosine monophosphate in the cavernosum tissue of the penis. Inhibition of PDE5 results in increased arterial blood flow leading to enlargement of the corpus cavernosum. Because of the increased tumescence, veins are compressed between the corpus cavernosum and the tunica albuginea, resulting in an erection.

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Unlabelled: Ceftriaxone is a parenteral third-generation cephalosporin with a long elimination half-life which permits once-daily administration. It has good activity against Streptococcus pneumoniae, methicillin-susceptible staphylococci, Haemophilus influenzae, Moraxella catarrhalis and Neisseria spp. Although active against Enterobacteriaceae, the recent spread of derepressed mutants which hyperproduce chromosomal beta-lactamases and extended-spectrum beta-lactamases has diminished the activity of all third-generation cephalosporins against these pathogens necessitating careful attention to sensitivity studies.

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Paroxetine is a selective serotonin reuptake inhibitor (SSRI), with antidepressant and anxiolytic activity. In 6- to 24-week well designed trials, oral paroxetine 10 to 50 mg/day was significantly more effective than placebo, at least as effective as tricyclic antidepressants (TCAs) and as effective as other SSRIs and other antidepressants in the treatment of major depressive disorder. Relapse or recurrence over 1 year after the initial response was significantly lower with paroxetine 10 to 50 mg/day than with placebo and similar to that with imipramine 50 to 275 mg/day.

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Unlabelled: Gatifloxacin is an 8-methoxy fluoroquinolone antibacterial agent. The drug has a broader spectrum of antibacterial activity than the older fluoroquinolones (e.g.

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Unlabelled: Estradiol-intranasal is a nasal spray formulation containing an aqueous solution of 17beta-estradiol that has a unique pulse-like pharmacokinetic profile. In a well designed, placebo-controlled trial estradiol-intranasal 200 to 400 microg/day significantly reduced the incidence and severity of climacteric symptoms in women with moderate to severe menopausal symptoms after 4 and 12 weeks' treatment. The efficacy of estradiol-intranasal 300 microg/day was similar to that of oral estradiol 2 mg/day in this and another double-blind placebo-controlled trial.

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In the study, we investigate whether the expressions of heat shock protein (hsp)60 (a potential autoantigen) and the stress-inducible form of cytoprotector hsp70 are correlated with the development of atherosclerotic lesions in the aortic tree of apolipoprotein E-deficient (apoE(-/-)) mice. The apoE(-/-) mouse model is advantageous because the stress-inducible form of hsp70 is not constitutively expressed in mice, unlike primates; hence, tissues under stress can be clearly defined. Both mammalian hsps were detected newly expressed (before mononuclear cell infiltration) on aortic valves and endothelia at lesion-prone sites of 3-week-old apoE(-/-) mice.

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Photodynamic therapy (PDT) is the treatment of tumors or dysplasic tissue with drugs that produce cytotoxic metabolites when exposed to light. Aminolevulinic acid HCl (5-aminolevulinic acid HCl; ALA) is a prodrug that is metabolized intracellularly to form the photosensitizing molecule protoporphyrin (PpIX). When PpIX is activated by light, cytotoxic reactive oxygen species and free radicals are generated.

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Unlabelled: Cefuroxime axetil, a prodrug of the cephalosporin cefuroxime, has proven in vitro antibacterial activity against several gram-positive and gram-negative organisms, including those most frequently associated with various common community-acquired infections. In numerous randomised, controlled trials, 5 to 10 days' treatment with oral cefuroxime axetil (250 or 500 mg twice daily) was an effective treatment in patients with upper (URTI) and lower respiratory tract infections (LRTI) as assessed by clinical and bacteriological criteria. The drug was as effective as several other cephalosporins, quinolones, macrolides and amoxicillin/clavulanic acid.

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Unlabelled: Tianeptine is an antidepressant agent with a novel neurochemical profile. It increases serotonin (5-hydroxytryptamine; 5-HT) uptake in the brain (in contrast with most antidepressant agents) and reduces stress-induced atrophy of neuronal dendrites. Like the selective serotonin reuptake inhibitors (SSRIs) and in contrast with most tricyclic antidepressant agents, tianeptine does not appear to be associated with adverse cognitive, psychomotor, sleep, cardiovascular or bodyweight effects and has a low propensity for abuse.

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Unlabelled: Topiramate is an antiepileptic drug (AED) which appears to have a broad range of antiseizure activity in humans. A previous overview focused primarily on results of trials of topiramate in adults with epilepsy, and this review highlights the use of topiramate in children. Clinical trials have shown that topiramate is effective when used adjunctively in children with refractory partial-onset seizures and generalised tonic-clonic seizures.

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Unlabelled: The nonselective beta-blocker timolol and the carbonic anhydrase inhibitor dorzolamide both lower intraocular pressure (IOP). Timolol and dorzolamide have different mechanisms of action and their effects are additive when administered together. Therefore, the 2 drugs are frequently used concomitantly to treat patients with open-angle glaucoma who have not adequately responded to first-line therapy.

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Unlabelled: Varicella zoster virus (VZV), the pathogen responsible for herpes zoster, belongs to the herpesvirus family and is sensitive to the antiviral drug aciclovir. However, the low oral bioavailability of aciclovir has to some extent limited its efficacy in the treatment of herpes zoster and has prompted the development of the more readily absorbed oral prodrug valaciclovir. In a large comparative study valaciclovir, (1000 mg 3 times daily for 7 days) was at least as effective as aciclovir (800 mg 5 times daily for 7 days) in controlling the symptoms of acute herpes zoster.

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Unlabelled: Valaciclovir is an aciclovir prodrug used to treat infections caused by herpes simplex virus (HSV) and varicella zoster virus, and for prophylaxis against cytomegalovirus (CMV). Oral valaciclovir provides significantly better oral bioavailability than oral aciclovir itself, contributing to the need for less frequent administration. Several studies have demonstrated the efficacy of long term (> 90 days) therapy with valaciclovir for the suppression of genital HSV disease in otherwise healthy individuals with HSV infection.

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Climate change may have an impact on the productivity of conifer trees by influencing the morphology (size and surface characteristics) and function (capacity for gas exchange) of conifer needles. In order to test the responses of needles to climatic variables, Douglas fir (Pseudotsuga menziesii [Mirb.] Franco), saplings were grown in sunlit controlled environment chambers at ambient or elevated (+200 parts per million above ambient) CO2 and at ambient or elevated temperature (+4 degrees C above ambient).

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Unlabelled: Epirubicin is a semisynthetic derivative of doxorubicin which has been extensively evaluated in patients with breast cancer. It is effective in the management of metastatic disease and as adjuvant therapy in patients with early breast cancer. In the adjuvant setting, epirubicin-based therapy appears to have efficacy at least equivalent to that of the standard therapy cyclophosphamide, methotrexate and fluorouracil (CMF), with the most recent trials, predominantly in premenopausal patients, reporting significant gains in relapse-free survival and overall survival for epirubicin-based vs CMF therapy.

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