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| 1 | Evaluation of the string test for the detection of Helicobacter pylori显示文摘AIM: Helicobacter pylori can be diagnosed by invasive ornon-invasive tests but to obtain bacteria for culture andantibiotic susceptibility testing, an upper GI endoscopy isoften required. The string test may be a minimally-invasivealternative method of obtaining H. pylori samples. This studyevaluates the sensitivity and specificity of the string test inthe diagnosis of H. pylori in comparison with endoscopicmeans of diagnosis.METHODS: This was a prospective open comparative studyof patients with dyspepsia with endoscopy-based tests asgold standard (defined as a positive CLO test and antralhistology). Fasting patients swallowed the encapsulated-string(Entero-test Hp), which was withdrawn after 1 hour. Thegastric juice from the string was plated onto H. pylori-selectivemedia for culture. Helicobacter pylori was identified by typicalcolony morphology, gram stain and biochemical test results.RESULTS: Thirty dyspeptic patients were recruited of whom21 (70 %) were positive for H. pylori according to the goldstandard. The sensitivity, specificity, positive predictive value,and negative predictive value for the string test were 38 %,100 %, 100 % and 41% respectively, and for endoscopicbiopsies 81%, 100 %, 100 %, 69 % respectively (P=0.004).Logistic regression showed that only abundant growthdensity from endoscopic biopsy cultures to be a predictor ofa positive string test (P=0.018).CONCLUSION: The string test is an alternative method toendoscopy in obtaining H. pylori but has a low sensitivitycompared to endoscopic biopsies. | Rupert WL Leong Ching C Lee Thomas KW Ling WaiK Leung Joseph JY Sung | 2003 | World Journal of Gastroenterology2003，9，2： | 3 |
| 2 | Genetic instabilities in human cancers显示文摘 | Lengauer C Kinzler KW Vogelstein B | 1998 | Nature1998，396，： | 1 |
| 3 | C-reactive protein and outcome after ischcmic stroke 显示文摘 | Muir KW Weir C J Alwan W | 1999 | Stroke1999，30，5： | 1 |
| 4 | Microvascular endo- thelial dysfunction and its mechanism in a rat model of subarachnoid hemorrhage 显示文摘 | Park KW Metals C Dai HB | 2001 | Anesth Analg2001，92，4： | 1 |
| 5 | Coordinate regulation of hu-man drug-metabolizing enzymes,and conjugatetransporters by the Ah receptor,pregnane X recep-tor and constitutive androstane receptor显示文摘 | Khle C Bock KW | 2009 | Bio-chem Pharmacol2009，77，4： | 1 |
| 6 | Gypenosides induced Go /G, arrest via CHk2 and apoptouis through endoplasmic reticulum stress and mitochondria-dependent pathways in human tongue cancer SCC-4 cells显示文摘 | Chen]C Lu KW Tsai ML | 2009 | Oral Oncol2009，45，3： | 1 |
| 7 | NFATc3-dependent loss of Ito gra- dient across the left ventricular wall during chronic beta adrenergic stimulation 显示文摘 | Rossow CF Dilly KW Yuan C | 2009 | J Mol Cell Cardiol2009，46，2： | 1 |
| 8 | Gypenosides inhibited invasion and migration of human tongue cancer SCC4 cells through down-regulation of NFkapplB and matrix metalloproteinase-9显示文摘 | Lu KW Tsai ML Chen]C | | Anticancer Res0，28，2： | 1 |
| 9 | Effects of ozone and sulphur dioxide on injury and foliar concentrations of sulphur and chlorophyll in soybean Glycine max 显示文摘 | Pratt G C Kromroy KW Krupa S V | 1983 | Environment Pollution1983，32，： | 1 |
| 10 | Inflammatory pseudotumor of the alimentary tract:clinical and surgical experience显示文摘 | West KW Gingalewski C | 2001 | J Pediatr Surg2001，36，1： | 1 |
| 11 | The mammalian aryl hydrocarbon ( Ah ) receptor: from mediator of dioxin toxicity toward physiological functions in skin and liver显示文摘 | Bock KW Kohle C | 2009 | Biol Chem2009，390，12： | 1 |
| 12 | Regulation of the follicle-stimulating hormone beta gene by the LHX3 LIM-homeodomain transcription factor显示文摘 | West B E Parker G E Savage J J Kiratipranon P Toomey K S Beach L R Colvin S C Sloop KW Rhodes S J | | 0，，： | 1 |
| 13 | Aldosterone and TGF - betal synergistically increase PAI- 1 and decrease matrix degradation in rat renal mesangial and fibroblast cells 显示文摘 | Huang W Xu C Kahng KW | 2008 | Am J Physiol Renal Physiol2008，294，6： | 1 |
| 14 | Autophagy for cancer therapy through inhibition of pro-apoptotic proteins and mammalian target of rapamycin signaling显示文摘 | Kim KW Mutter RW Cao C | 2006 | J Biol Chem2006，281，36： | 1 |
| 15 | Effect of apolipoprotein E genotype on in - hospital mortality following intracerebral haemor- rhage显示文摘 | McCarron MO Weir C J Muir KW | 2003 | Acta Neurol Scand2003，107，2： | 1 |
| 16 | C-reactive protein and outcome after ischemic stroke 显示文摘 | Muir KW Weir C J Alwan W | 1999 | Stroke1999，30，5： | 1 |
| 17 | Overture for growth hormone : requiem for interleukin - 6 显示文摘 | Conrad C Niess H Jauch KW | 2007 | Crit Care Med2007，35，12： | 1 |
| 18 | Genetic instability in colorectal cancers显示文摘 | Lengauer C Kinzler KW Vogelstein B | | 0，，6625： | 1 |
| 19 | Inhibition of signal transducer and activator of transcription 3 activity results in down- regulation of Survivin following irradiation显示文摘 | Kim KW Mutter RW Cao C | 2006 | Mol Cancer Ther2006，5，11： | 1 |
| 20 | Comparison of superior oblique tendon expander to superior oblique tenotomy for the management of superior oblique overaction and Brown syndrome显示文摘 | Wright KW Min BM Park C | 1992 | J Pediatr Ophthalmol Strabismus1992，29，： | 1 |
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