Health Information Search Results
Peer Reviewed Scientific Research Reports.
|<< Prev 20 ||Showing 1 to 20 of 619 Matches||Next 20 >>|
1. Acute, severe noncardiac conditions in patients with acute myocardial infarction.
Match Strength: 3.184
PURPOSE: The study's purpose was to determine the prevalence and prognostic importance of acute, severe, noncardiac conditions present at the time of an acute myocardial infarction (AMI). METHODS: We identified consecutive patients with AMI who were discharged from Yale-New Haven Hospital between January 1, 1997, and June 30, 2000. Acute, noncardiac conditions that were present at admission were abstracted from patient records and graded by severity (imminent threat to life; other significant condition that would warrant admission). We examined the prognostic importance of these conditions on ... Read More »
» Published in Am J Med. 2006 Oct;119(10):843-50.
2. Efficient "total" extraction of perfluorooctanoate from polytetrafluoroethylene fluoropolymer.
Match Strength: 3.028
To determine the optimum conditions for the complete extraction of perfluorooctanoate (PFO) from polytetrafluoroethylene fluoropolymers, sample preparation and pressurized solvent extraction (PSE) conditions were investigated. Solvent extraction temperature, solvent residence time, relaxation time between extractions, and the effects of heating before PSE showed that methanol at 150 degrees C extraction temperature and a 12 min solvent residence time were the most efficient conditions. Preheating the polymer before extraction at 150 degrees C for 24 h significantly enhanced the quantity of PFO ... Read More »
» Published in Analyst. 2006 Oct;131(10):1105-8. Epub 2006 Aug 14.
3. Using medical billing data to evaluate chronically ill children over time.
Match Strength: 2.964
This study evaluates stability of chronic condition identification in children older than 4 years in a health plan billing data using Clinical Risk Groups. A total of 31,055 children were continuously enrolled for 4 years; 7.5% (2,334) identified with a chronic condition status in year 1, 2002, and another 15.4% (4,784) during subsequent years; 63.6% (19,759) were identified as "healthy" throughout. The most stable were those identified with a catastrophic health condition. The least stable were those with minor and moderate/dominant major chronic conditions. Overall, 73.1% (1,706) of the ... Read More »
» Published in J Ambul Care Manage. 2006 Oct-Dec;29(4):283-90.
4. Conditions for the emergence of life on the early Earth: summary and reflections.
Match Strength: 2.921
This review attempts to situate the emergence of life on the early Earth within the scientific issues of the operational and mechanistic description of life, the conditions and constraints of prebiotic chemistry, together with bottom-up molecular fabrication and biomolecular nanofabrication and top-down miniaturization approaches to the origin of terrestrial life. Publication Types: Congresses, Research Support, Non-U.S. Gov ... Read More »
» Published in Philos Trans R Soc Lond B Biol Sci. 2006 Oct 29;361(1474):1877-91.
5. Taurine release in mouse brain stem slices under cell-damaging conditions.
Match Strength: 2.912
Taurine has been thought to be essential for the development and survival of neural cells and to protect them under cell-damaging conditions. In the brain stem taurine regulates many vital functions, including cardiovascular control and arterial blood pressure. We have recently characterized the release of taurine in the adult and developing brain stem under normal conditions. Now we studied the properties of preloaded [(3)H]taurine release under various cell-damaging conditions (hypoxia, hypoglycemia, ischemia, the presence of metabolic poisons and free radicals) in slices prepared from the ... Read More »
» Published in Amino Acids. 2006 Sep 27;
6. Testicular microlithiasis identified ultrasonographically in Japanese adult patients: prevalence and associated conditions.
Match Strength: 2.889
OBJECTIVES: To determine the prevalence of testicular microlithiasis (TM) seen by testicular ultrasonography (US) in Japanese adult men referred for andrologic symptoms and evaluate associations of TM with pathologic conditions. METHODS: For 7 years, US was performed in 969 patients (mean age 40.9 years) at one institution. The patients were divided into groups with infertility (n = 550), unilateral testicular tumor (n = 46), or other andrologic conditions (n = 373). TM was identified as multiple small hyperechogenic foci. In the tumor group, only images of the tumor-free testis were reviewed. ... Read More »
» Published in Urology. 2006 Sep;68(3):636-41. Epub 2006 Sep 18.
7. Evaluation and treatment of papilledema in pregnancy.
Match Strength: 2.839
Papilledema is defined as optic disk edema that is secondary to increased intracranial pressure. During pregnancy, papilledema poses additional diagnostic and therapeutic challenges. As in the nonpregnant patient, the primary goal is to urgently determine the cause of the papilledema followed by implementing appropriate management for life-threatening conditions in a timely fashion while safeguarding the fetus. Papilledema may occur also in conditions that are not life threatening; in either case, papilledema may cause visual failure. We describe the two most common causes of papilledema ... Read More »
» Published in Compr Ophthalmol Update. 2006 Jul-Aug;7(4):187-202.
8. Analysis of synaptic bodies in the Sprague-Dawley rat pineal gland under extreme photoperiods.
Match Strength: 2.834
Synaptic bodies (SBs) are small, prominent organelles in pinealocytes, most probably involved in signal transduction processes. To check the influence of the photoperiod on their shape plasticity and number we chose two extreme lighting conditions, i.e. 20h of illumination followed by 4h of darkness (LD 20:4) versus (LD 4:20). Pineal glands were assessed at 0, 4 and 13h after dark onset. Under both conditions reconstructed SBs were plates or ribbons but never spheres and there were no obvious differences in morphology. Photoperiodic changes in SB profile size and number were investigated: ... Read More »
» Published in Micron. 2007;38(3):237-51. Epub 2006 Jul 31.
9. Effect of Polyethylenimine, a Cell Permeabiliser, on the Photo-sensitised Destruction of Algae by Methylene Blue and Nuclear Fast Red.
Match Strength: 2.736
The present study reports the effect of a cell permeabiliser, polyethylenimine (PEI) has on the photodynamic effect of Methylene Blue (MB) and Nuclear Fast Red (NFR) in the presence of hydrogen peroxide (H2O2). The photosensitised destruction of the algae Chlorella vulgaris (C. vulgaris) under irradiation with visible light is examined. The photodynamic effect was investigated under aerobic and anaerobic conditions. The presence of a permeabiliser during the photosensitised destruction of C. vulgaris does not enhance the activity of the MB, MB/H2O2 system nor NFR, NFR/H2O2 system under aerobic ... Read More »
» Published in Photochem Photobiol. 2006 May 1;
10. Driving circumstances and accidents among novice drivers.
Match Strength: 2.701
OBJECTIVE: The study evaluated the accident risk of certain driving circumstances and driving motives among novice drivers. METHODS: Self-reported exposure and accidents according to driving circumstances and driving motives were compared between young (n = 6,847) and middle-aged (n = 942) male and female novice drivers. For young drivers, self-reported accidents were further compared to fatal accidents (n = 645) in terms of the driving conditions in which they occurred. The survey was conducted in 2002 and the questions regarding the quantity and quality of driving exposure and accidents ... Read More »
» Published in Traffic Inj Prev. 2006 Sep;7(3):232-7.
11. Effect of organic co-contaminants on technetium and rhenium speciation and solubility under reducing conditions.
Match Strength: 2.636
The chemical and biogeochemical reduction of pertechnetate (TcO4-) and perrhenate (ReO4-) have been compared alongside complexation of the reduced species by three anthropogenic ligands relevant to nuclear waste (ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), and isosaccharinic acid (ISA)). An HPLC size-exclusion column coupled to ICP-MS was used to separate the species and quantify Tc and Re. During method development, ReO4- showed recalcitrance to direct chemical reduction by Sn(ll) under conditions that readily reduced TcO4- and resulted in Tc(IV)-organic complexes. In ... Read More »
» Published in Environ Sci Technol. 2006 Sep 1;40(17):5472-7.
12. Pathological conditions of the reproductive organs of male stray dogs in the tropics: prevalence, risk factors, morphological findings and testosterone concentrations.
Match Strength: 2.610
The objective of this study was to estimate the prevalence of and risk factors for pathological conditions of the reproductive organs in stray dogs under tropical conditions. Three hundred and eighteen dogs were examined post-mortem in the period from 1 July 2002 to 30 June 2003. Before killing, a blood sample (from the cephalic vein) for testosterone assay was taken. Pathological conditions of the reproductive organs were found in 135 of the dogs (42.5%) and in 175 of the testes (64.8%). The most frequent pathologies found were testicular degeneration, cryptorchidism, testicular hypoplasia ... Read More »
» Published in Reprod Domest Anim. 2006 Oct;41(5):429-37.
13. A background to acupuncture and its use in chronic painful musculoskeletal conditions.
Match Strength: 2.609
This article gives a brief description of the origins of acupuncture and describes some of the underlying philosophy behind this treatment and attempts to place it in context of the traditional Chinese medicine genre within which acupuncture is set. The article then explains the difference between traditional and Western style acupuncture and explains how point selection is made. The use of acupuncture is steadily increasing for a variety of reasons, it is a very safe intervention particularly when compared to conventional treatment and its lack of serious side effects might in part account ... Read More »
» Published in J R Soc Health. 2006 Sep;126(5):219-27.
14. Neuronal activity: from in vitro preparation to behaving animals.
Match Strength: 2.602
The knowledge of the mechanisms regulating electric neuronal activity is fragmented by the wide variety of techniques and experimental models currently used in neurophysiological research. The interest and importance of the results obtained in any research is improved when interpreted in the perspective of the organism functioning as a whole in physiological conditions. Such interpretation, freed of the constraints imposed by the different techniques and experimental conditions used, is especially important when discussing together results obtained at the behavioral, cellular, and molecular ... Read More »
» Published in Mol Neurobiol. 2006 Aug;34(1-2):1-26.
15. Approximate first passage time distribution for barrier crossing in a double well under fractional Gaussian noise.
Match Strength: 2.594
The distribution of waiting times, f(t), between successive turnovers in the catalytic action of single molecules of the enzyme beta-galactosidase has recently been determined in closed form by Chaudhury and Cherayil [J. Chem. Phys. 125, 024904 (2006)] using a one-dimensional generalized Langevin equation (GLE) formalism in combination with Kramers' flux-over-population approach to barrier crossing dynamics. The present paper provides an alternative derivation of f(t) that eschews this approach, which is strictly applicable only under conditions of local equilibrium. In this alternative ... Read More »
» Published in J Chem Phys. 2006 Sep 21;125(11):114106.
16. Factors governing the quality of aqueous CdTe nanocrystals: calculations and experiment.
Match Strength: 2.590
The aqueous synthesis of thiol-stabilized semiconductor CdTe colloidal nanocrystals has been revisited. We found optimal conditions for the synthesis of high-quality CdTe NCs through a study of the influence of the initial conditions (structure and concentration of Cd-thiol complexes) on the quality of the CdTe nanocrystals. A numerical calculation shows a clear correlation between the concentration of CdL (where L is (SCH(2)COO)(2-)) in the initial solution and the photoluminescence quantum efficiency of the CdTe nanocrystals. Publication Types: Research Support, Non-U.S. Gov ... Read More »
» Published in J Phys Chem B Condens Matter Mater Surf Interfaces Biophys. 2006 Oct 5;110(39):19280-4.
17. Is P-glycoprotein (ABCB1) a phase 0 or a phase 3 colchicine transporter depending on colchicine exposure conditions?
Match Strength: 2.582
This study investigates the P-glycoprotein (Pgp)-mediated transport of its substrates in accumulation or efflux modes under steady-state conditions. The kinetics of colchicine uptake and efflux, a substrate of both Pgp and intracellular tubulin, were studied in HL60 and HL60/DNR cells; HL60/DNR cells contain 25 times more Pgp than do HL60 cells. HL60/DNR cells in a medium containing 6.25 nM colchicine, which mimics therapeutic conditions, reached steady-state twice as rapidly as did HL60 cells, and accumulated 24-times less colchicine than did HL60 cells. The Pgp inhibitor GF120918, increased ... Read More »
» Published in Toxicol Appl Pharmacol. 2006 Dec 1;217(2):153-60. Epub 2006 Aug 10.
18. The use of complementary and alternative medicine in children with chronic medical conditions.
Match Strength: 2.582
OBJECTIVES: The objectives of this study were to examine whether progressive medical conditions lead to greater use of complementary and alternative medicine (CAM) as compared with more stable conditions, to see whether disease severity influences CAM use, and to identify the main motivations behind CAM use. METHODS: Subjects were selected from outpatient clinics at Hotel Dieu Hospital. Surveys were conducted by mail and telephone. Medical diagnosis and severity were obtained from medical files. Statistical tests included chi, Kruskal-Wallis, and correlations. RESULTS: One hundred ninety-four ... Read More »
» Published in Am J Phys Med Rehabil. 2006 Oct;85(10):842-6.
19. Multi-detector row CT: spectrum of diseases involving the ileocecal area.
Match Strength: 2.576
The ileocecal area is a relatively short segment of the gastrointestinal tract but may be affected by pathologic conditions that are either common throughout the gastrointestinal system or exclusive to this area. These conditions include benign and malignant tumors, inflammatory processes (appendicitis, diverticulitis, epiploic appendagitis, Crohn disease), infectious diseases, and miscellaneous conditions (cecal ischemia, typhlitis, cecal volvulus, duplication cyst). The various components of the ileocecal area (cecum, appendix, ileocecal valve, terminal ileum) are close to one another, so ... Read More »
» Published in Radiographics. 2006 Sep-Oct;26(5):1373-90.
20. Fatigue behavior of resin composites in aqueous environments.
Match Strength: 2.572
OBJECTIVES: Interaction between mechanical and chemical fatigue of resin composites was investigated. METHODS: Fatigue fracture resistance of composites after (1) water immersion and under (2) dry and (3) aqueous conditions was analyzed using a fatigue crack propagation test. The characteristics of fatigue crack propagation were expressed as the correlation between the fatigue crack growth rate (da/dN) and stress intensity factor range (DeltaK) and by the fatigue crack growth threshold (DeltaKth). Following the fatigue test, a fractographic examination was performed by scanning electron ... Read More »
» Published in Dent Mater. 2006 Sep 26;
|<< Prev 20 ||Showing results 1 to 20 of 619||Next 20 >>|
* All information on Level1Diet.com is for educational purposes only. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. Before changing your diet, or adding supplements to your diet, or beginning an exercise program, everyone should consult a qualified and licensed health practitioner; a physician, dietician or similar professional.