Our library of drug research abstracts drawn from the medical literature is updated on a regular schedule, and you can be assured that new ibuprofen research articles will be listed here shortly after becoming available to us.
Related Sponsors
Medical research on ibuprofen
The effects of ibuprofen on muscle hypertrophy, strength, and soreness during resistance training.
Appl Physiol Nutr Metab. 2008 Jun; 33(3): 470-5
Krentz JR, Quest B, Farthing JP, Quest DW, Chilibeck PD
High doses of ibuprofen have been shown to inhibit muscle protein synthesis after a bout of resistance exercise. We determined the effect of a moderate dose of ibuprofen (400 mg.d-1) consumed on a daily basis after resistance training on muscle hypertrophy and strength. Twelve males and 6 females (~24 years of age) trained their right and left biceps on alternate days (6 sets of 4-10 repetitions), 5 d.week-1, for 6 weeks. In a counter-balanced, double-blind design, they were randomized to receive 400 mg.d-1 ibuprofen immediately after training their left or right arm, and a placebo after training the opposite arm the following day. Before- and after-training muscle thickness of both biceps was measured using ultrasound and 1 repetition maximum (1 RM) arm curl strength was determined on both arms. Subjects rated their muscle soreness daily. There were time main effects for muscle thickness and strength (p < 0.01). Ibuprofen consumption had no effect on muscle hypertrophy (muscle thickness of biceps for arm receiving ibuprofen: pre 3.63 +/- 0.14, post 3.92 +/- 0.15 cm; and placebo: pre 3.62 +/- 0.15, post 3.90 +/- 0.15 cm) and strength (1 RM of arm receiving ibuprofen: pre 18.6 +/- 2.8, post 23.4 +/- 3.5 kg; and placebo: pre 18.8 +/- 2.8, post 22.8 +/- 3.4 kg). Muscle soreness was elevated during the first week of training only, but was not different between the ibuprofen and placebo arm. We conclude that a moderate dose of ibuprofen ingested after repeated resistance training sessions does not impair muscle hypertrophy or strength and does not affect ratings of muscle soreness.
Pediatr Res. 2008 Apr 30;
Hammerman C, Shchors I, Jacobson S, Schimmel MS, Bromiker R, Kaplan M, Nir A
Ibuprofen has been proposed as a preferential alternative to indomethacin in treating patent ductus arteriosus (PDA) because it is purported to have less renal, mesenteric, and cerebral vasoconstrictive effects. However, short and long-term safety concerns regarding ibuprofen remain. Continuous slow infusion of indomethacin also eliminates peripheral vasoconstriction and may thus offer similar benefits to ibuprofen without safety concerns. In this study, our objective was to show that treating a PDA with continuous indomethacin is similar to ibuprofen in its effect on urine output, renal function and blood flow velocities in the renal, superior mesenteric and anterior cerebral arteries. 64 prematures with PDA were randomly, prospectively assigned to either treatment. PDA closure rates were similar (74% vs 59%; p=0.123). Nine indomethacin treated babies (29%) vs. twelve ibuprofen babies (38%) underwent repeated therapy (p=0.656). Two indomethacin and four ibuprofen infants required surgical ligation (p=0.672). Serum creatinine, oliguria, estimated GFR and fractional excretion of sodium were similar in both groups, as were blood flow velocity parameters in the vessels studied. There were no differences in NEC, BPD, IVH and/or ROP. In conclusion, PDA treatment with either continuous indomethacin infusion or ibuprofen was equally devoid of adverse renal effects and/or peripheral vasoconstrictive effects.
Protective effects of NSAIDs on the development of Alzheimer disease.
Neurology. 2008 May 6; 70(19): 1672-7
Vlad SC, Miller DR, Kowall NW, Felson DT
BACKGROUND: Nonsteroidal anti-inflammatory drugs (NSAIDs) may protect against Alzheimer disease (AD), but observational studies and trials have offered contradictory results. Prior studies have also been relatively short and small. We examined the effects on AD risk of NSAID use for >5 years and of NSAIDs that suppress formation of A beta (1-42) amyloid in a large health care database. METHODS: Cases were veterans aged 55 years and older with incident AD using the US Veterans Affairs Health Care system. Matched controls were drawn from the same population. NSAID exposure was categorized into seven time periods: no use, 1 but
Patient reported outcomes and analgesia use in osteoarthritis of the knee.
Osteoarthritis Cartilage. 2008 May 2;
Mody S, Jolly M, Kwasny MJ, Block JA
OBJECTIVE: Non-opioid analgesics (NOAs) are widely used to palliate osteoarthritis (OA) pain, however, their role in health-related quality of life (HRQoL) in OA has not been well studied. Here, we assess the relationship of pain, physical function, and HRQoL to NOA use in symptomatic knee OA. METHODS: NOA dose, pain, physical function, and HRQoL were evaluated longitudinally over 1 year in medial knee OA. Doses provided by subjects' weekly medication diaries were normalized to equi-analgesic ibuprofen-equivalents (IEs). Descriptive analyses at baseline, 1.5, and 12 months, and non-parametric comparisons of NOA with pain, physical function, and HRQoL at 1.5 months and over 12 months were performed. RESULTS: Seventy-one subjects (19 males and 52 females; mean 57+/-10.5 years) used an overall median of 300mg/week of IE. Twenty-five subjects reported no analgesic use during the study; of the 46 subjects that reported NOA use, the median intake was 1325mg/weekIE. Whereas age, Physical Functioning (PF) and HRQoL were predictive of NOA dose both at 1.5 months and during the entire study, pain level was not. The median NOA dose declined over 12 months (P=0.02), however, the change was not associated with changes in PF, HRQoL or pain. CONCLUSION: Greater age and worse physical function and HRQoL, but not pain severity, are predictive of NOA use in symptomatic knee OA. Longitudinally, NOA use does not change as a function of pain. These data suggest that pain is not the primary determinant of NOA use over time among OA patients.
Sci Total Environ. 2008 May 1;
Lapen DR, Topp E, Metcalfe CD, Li H, Edwards M, Gottschall N, Bolton P, Curnoe W, Payne M, Beck A
Land application of municipal biosolids (sewage) is a common farming practice in many parts of the world. There is potential for transport of pharmaceuticals and personal care products (PPCPs) from agricultural fields to adjacent surface waters via tile drainage systems. In this study, liquid municipal biosolids (LMB) (total solids=11,933 mg L(-1)), supplemented with selected PPCPs and the fluorescent dye tracer rhodamine WT (RWT), were applied to tile drained fields using two land application approaches. Objectives included evaluating the relative benefits of land application practices with respect to reducing PPCP loadings to tile drains, evaluating PPCP persistence in tile water, and determining whether rhodamine WT can be used to estimate PPCP mass loads in tile. The PPCPs examined included an antibacterial agent used in personal care products (triclosan), a metabolite of nicotine (cotinine), and a variety of drugs including two sulfonamide antimicrobials (sulfapyridine, sulfamethoxazole), a beta-blocker (atenolol), an anti-epileptic (carbamazepine), an antidepressant (fluoxetine), analgesic/anti-inflammatories (acetaminophen, naproxen, ibuprofen), and a lipid-regulator (gemfibrozil). Maximum observed PPCP concentrations in the spiked LMB were about 10(3) ng g(-1) dry weight. PPCPs were shown to move rapidly via soil macropores to tile drains within minutes of the land application. Maximum observed PPCP concentrations in tile effluent associated with the LMB application-induced tile flow event were ~10(1) to 10(3) ng L(-1). PPCP mass loads, for the application-induced tile-hydrograph event, were significantly (p
Flexible Porous Metal-Organic Frameworks for a Controlled Drug Delivery.
J Am Chem Soc. 2008 May 3;
Horcajada P, Serre C, Maurin G, Ramsahye NA, Balas F, Vallet-Regí M, Sebban M, Taulelle F, Férey G
Flexible nanoporous chromium or iron terephtalates (BDC) MIL-53(Cr, Fe) or M(OH)[BDC] have been used as matrices for the adsorption and in vitro drug delivery of Ibuprofen (or alpha- p-isobutylphenylpropionic acid). Both MIL-53(Cr) and MIL-53(Fe) solids adsorb around 20 wt % of Ibuprofen (Ibuprofen/dehydrated MIL-53 molar ratio = 0.22(1)), indicating that the amount of inserted drug does not depend on the metal (Cr, Fe) constitutive of the hybrid framework. Structural and spectroscopic characterizations are provided for the solid filled with Ibuprofen. In each case, the very slow and complete delivery of Ibuprofen was achieved under physiological conditions after 3 weeks with a predictable zero-order kinetics, which highlights the unique properties of flexible hybrid solids for adapting their pore opening to optimize the drug-matrix interactions.
Oesophageal perforation following ingestion of over-the-counter ibuprofen capsules.
J Laryngol Otol. 2008 May 1; 1-3
Singh NP, Rizk JG
Objective:We present a rare case of oesophageal perforation following ingestion of over-the-counter ibuprofen capsules.Method:Case report and literature review of pill oesophagitis.Case report:A previously well, 18-year-old man presented with sudden onset, severe, retrosternal pain, dysphagia and odynophagia following ingestion of over-the-counter ibuprofen capsules. Plain X-ray films and a contrast-enhanced computed tomography scan indicated the diagnosis. The patient was successfully treated with non-operative management.Conclusion:To our knowledge, this is the first report in the world literature concerning oesophageal perforation with ibuprofen. We discuss pill-induced oesophageal injury and its prevention. Manufacturers, clinicians and patients can all take steps to avoid this potentially life-threatening complication.
Biol Pharm Bull. 2008 May; 31(5): 939-45
Newa M, Bhandari KH, Li DX, Kim JO, Yoo DS, Kim JA, Yoo BK, Woo JS, Choi HG, Yong CS
To improve its dissolution, ibuprofen solid dispersions (SDs) were prepared in a relatively easy and simple manner, characterized by scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FT-IR), and evaluated for solubility, in-vitro drug release and oral bioavailability of ibuprofen in rats. Loss of individual surface properties during melting and resolidification as revealed by SEM micrographs indicated the formation of effective SDs. Absence or shifting towards the lower melting temperature of the drug peak in SDs and physical mixtures in DSC study indicated the possibilities of drug-polymer interactions. FT-IR spectra showed the presence of drug crystalline in SDs. Quicker release of ibuprofen from SDs in rat intestine resulted in a significant increase in AUC and C(max), and a significant decrease in T(max) over pure ibuprofen. Preliminary results from this study suggested that the preparation of fast dissolving ibuprofen SDs by low temperature melting method using polyethylene glycol 4000 (PEG 4000) as a meltable hydrophilic polymer carrier could be a promising approach to improve solubility, dissolution and absorption rate of ibuprofen.
Pediatrics. 2008 May; 121(5): 945-56
McCurnin D, Seidner S, Chang LY, Waleh N, Ikegami M, Petershack J, Yoder B, Giavedoni L, Albertine KH, Dahl MJ, Wang ZM, Clyman RI
OBJECTIVE: The goal was to study the pulmonary, biochemical, and morphologic effects of a persistent patent ductus arteriosus in a preterm baboon model of bronchopulmonary dysplasia. METHODS: Preterm baboons (treated prenatally with glucocorticoids) were delivered at 125 days of gestation (term: 185 days), given surfactant, and ventilated for 14 days. Twenty-four hours after birth, newborns were randomly assigned to receive either ibuprofen (to close the patent ductus arteriosus; n = 8) or no drug (control; n = 13). RESULTS: After treatment was started, the ibuprofen group had significantly lower pulmonary/systemic flow ratio, higher systemic blood pressure, and lower left ventricular end diastolic diameter, compared with the control group. There were no differences in cardiac performance indices between the groups. Ventilation index and dynamic compliance were significantly improved with ibuprofen. The improved pulmonary mechanics in ibuprofen-treated newborns were not attributable to changes in levels of surfactant protein B, C, or D, saturated phosphatidylcholine, or surfactant inhibitory proteins. There were no differences in tracheal concentrations of cytokines commonly associated with the development of bronchopulmonary dysplasia. The groups had similar messenger RNA expression of genes that regulate inflammation and remodeling in the lung. Lungs from ibuprofen-treated newborns were significantly drier (lower wet/dry ratio) and expressed 2.5 times more epithelial sodium channel protein than did control lungs. By 14 days after delivery, control newborns had morphologic features of arrested alveolar development (decreased alveolar surface area and complexity), compared with age-matched fetuses. In contrast, there was no evidence of alveolar arrest in the ibuprofen-treated newborns. CONCLUSIONS: Ibuprofen-induced patent ductus arteriosus closure improved pulmonary mechanics, decreased total lung water, increased epithelial sodium channel expression, and decreased the detrimental effects of preterm birth on alveolarization.
Pharmaceutical residues in the river Rhine-results of a one-decade monitoring programme.
J Environ Monit. 2008 May; 10(5): 664-70
Sacher F, Ehmann M, Gabriel S, Graf C, Brauch HJ
In this paper, results of an extensive monitoring programme for pharmaceutical residues in the river Rhine are presented. For one decade (1997 until 2006), the occurrence of widely used human pharmaceuticals like analgesics, lipid regulators, antiepileptics and others has been studied at four locations along the river Rhine. The results of more than 500 analyses clearly prove that compounds such as carbamazepine or diclofenac are regularly found in the river Rhine in concentrations up to several hundred ng per litre. Combining concentration levels with data on water flow enables the calculation of transports, which e.g. for carbamazepine or diclofenac were in the range of several tons per year. The evaluation of the long-term monitoring data shows that only a slight decrease in concentration levels as well as in annual transports can be observed and thus the contamination of the river Rhine by pharmaceutical residues during the last decade has to be regarded as almost constant. Seasonal variations can be detected for bezafibrate, diclofenac and ibuprofen, for which the concentrations are much lower in the summer months. A more effective removal during wastewater treatment in the warmer periods of the year seems to be the major reason for those variations. For carbamazepine, no comparable seasonal effect can be found.