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61.
Margaret A. DiGuardo Jaime I. Davila Rory A. Jackson Asha A. Nair Numrah Fadra Kay T. Minn Mazen A. Atiq Shabnam Zarei Joseph H. Blommel Shannon M. Knight Jin Jen Bruce W. Eckloff Jesse S. Voss Kandelaria M. Rumilla Sarah E. Kerr Dora M. Lam-Himlin Andrew M. Bellizzi Rondell P. Graham Kevin C. Halling 《The Journal of molecular diagnostics : JMD》2021,23(5):555-564
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63.
Omar Hayani Lyall AJ Higginson Baldwin Toye Ian G Burwash 《The Canadian journal of cardiology》2009,25(4):e130-e132
Infective endocarditis caused by zoonotic microorganisms is an uncommon clinical entity. A 55-year-old man was diagnosed with endocarditis due to Capnocytophaga canimorsus, a commensal bacterium contained in the saliva of dogs, that involved the aortic and tricuspid valves and was complicated by a para-aortic valve abscess and aorta-to-right atrial fistula. The patient was successfully treated with antibiotic therapy and surgical intervention. C canimorsus endocarditis should be considered in patients with culture-negative endocarditis, particularly in immunosuppressed, asplenic or alcoholic individuals who have recently suffered a dog bite or have had close contact with dogs. 相似文献
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65.
After the introduction of the colposcope for the examination of children suspected of being sexually abused in Leeds, a study was undertaken to describe the findings in detail. A total of 109 consecutive prepubertal girls, mean age 70.4 months were assessed including colposcopic genital and anal examination, and peer group review of reports and photographs. Fifty nine children had signs consistent with blunt force penetrating trauma (hymenal transection/major notch, scar, or hymenal attenuation). Transections were encountered most commonly at 6 o'clock (directly posterior). In 46 the hymenal orifice was gaping with thigh abduction only and in 47 the hymenal orifice transverse diameter was greater than 4 mm on labial separation. Overall, physical findings were commonly present and in only two cases were no signs recorded. Non-specific and frequent findings included patterns of labial and introital reddening. Supportive hymenal signs including swelling, rounding of edge, thickening, distortion, and loss of symmetry were common. Labial fusion was present in 20. Urethral dilatation with labial separation was noted in 14. Physical findings including normality are consistent with abuse and even minor anogenital signs as well as negative findings should be documented. Colposcopy and photography are valuable tools in peer review, teaching, and case management. 相似文献
66.
AJ Blethyn HR Jenkins R Roberts K Verrier Jones 《Archives of disease in childhood》1995,73(6):534-535
Little objective evidence has been published to support the claim that constipation is an important contributory factor in recurrent urinary tract infection (UTI) in childhood. Using a radiological scoring system, two observers assessed faecal loading from abdominal radiographs of children with proved UTIs. There was a significant increase in the degree of faecal loading in children with UTI when compared with controls (r = 0.237). This difference was mainly accounted for by girls with recurrent (greater than five) UTIs. This study confirms an association between recurrent UTI and faecal loading. Further studies are needed to establish if there is a causal relationship and benefits from treatment. 相似文献
67.
The purpose of this review is to provide a sufficiently detailed perspective on epidemiologic studies of primary brain tumors to encourage multidisciplinary etiologic and prognostic studies among surgeons, neuro-oncologists, epidemiologists, and molecular scientists. Molecular tumor markers that predict survival and treatment response are being identified with hope of even greater gains in this area from emerging array technologies. Regarding risk factors, studies of inherited susceptibility and constitutive polymorphisms in genes pertinent to carcinogenesis (for example, DNA repair and detoxification genes and mutagen sensitivity) have revealed provocative findings. Inverse associations of the history of allergies with glioma risk observed in 3 large studies and reports of inverse associations of glioma with common infections suggest a possible role of immune factors in glioma genesis or progression. Studies continue to suggest that brain tumors might result from workplace, dietary, and other personal and residential exposures, but studies of cell phone use and power frequency electromagnetic fields have found little to support a causal connection with brain tumors; caveats remain. The only proven causes of brain tumors (that is, rare hereditary syndromes, therapeutic radiation, and immune suppression giving rise to brain lymphomas) account for a small proportion of cases. Progress in understanding primary brain tumors might result from studies of well-defined histologic and molecular tumor types incorporating assessment of potentially relevant information on subject susceptibility and environmental and noninherited endogenous factors (viruses, radiation, and carcinogenic or protective chemical exposures through diet, workplace, oxidative metabolism, or other sources). Such studies will require the cooperation of researchers from many disciplines. 相似文献
68.
Juergen C Dinger Lothar AJ Heinemann Sabine Möhner Do Minh Thai Anita Assmann 《BMC women's health》2006,6(1):13-13
Background
Previous epidemiological studies have inconsistently shown a modestly increased breast cancer risk associated with hormone replacement therapy (HRT). Limited information is available about different formulations - particularly concerning different progestins. 相似文献69.
Blood metabolism of [methyl-11C]choline; implications for in vivo imaging with positron emission tomography 总被引:5,自引:0,他引:5
Roivainen A Forsback S Grönroos T Lehikoinen P Kähkönen M Sutinen E Minn H 《European journal of nuclear medicine》2000,27(1):25-32
[methyl-11C]choline (11C-choline) is a radioligand potentially useful for oncological positron emission tomography (PET). As a first step towards the development of a kinetic model for quantification of 11C-choline uptake, blood metabolism of 11C-choline during PET imaging was studied in humans. High-performance liquid chromatography (HPLC) and thin-layer chromatography (TLC) were used for the analysis of 11C-choline and its radioactive metabolites. Prior to human PET imaging we studied ex vivo the biodistribution and metabolism of intravenously administered 11C-choline in rats. Our results revealed that the radioactivity accumulated particularly in kidney, lung, adrenal gland and liver. Chromatographic analysis showed that the level of unmetabolized 11C-choline in rat plasma decreased from 42% +/- 20% (mean +/- SD) at 5 min to 21% +/- 10% at 15 min after injection. In accordance with these findings, in humans the unmetabolized 11C-choline represents 62% +/- 19% of the total radioactivity in arterial plasma at 5 min after injection and 27% +/- 12% at 15 min. In human venous plasma the corresponding values were 85% +/- 12% and 48% +/- 12% at 5 and 10 min, respectively. The major metabolite observed in both human and rat plasma was identified as 11C-betaine. In human arterial plasma this maximally represented 82% +/- 9% of the total radioactivity at 25 min after radiotracer injection. By 20 min after injection, the 11C-choline and 11C-betaine in human arterial plasma reached a plateau, and their fractional activities remained nearly constant thereafter. Although most of the circulating 11C-choline in blood is transported to tissues, it does not disappear totally from blood within the first 40 min after tracer injection. 相似文献
70.
Aleksi?R.?SchreyEmail author Ilpo?A.?J.?Kinnunen Reidar?A.?Grénman Heikki?R.?I.?Minn Kalle?M.?J.?Aitasalo 《European archives of oto-rhino-laryngology》2008,265(1):105-113
Snoring occurs as a major symptom in patients with sleep disordered breathing (SDB). The aetiology of snoring remains still
unclear despite various attempts to localize snoring. The correlation between different snoring sounds and the severity of
SDB has not yet been investigated in a larger population. The aim of this study was to record and analyse snoring sounds and
to correlate the obtained data with clinical and polysomnographical parameters. Sixty male patients with suspected SDB and
reported snoring underwent a clinical examination and night time polysomnography. The parallel digitally recorded snoring
sounds were analysed by fast fourier transformation (FFT). Peak intensity was determined from the power spectrum. The periodicity
of snoring was classified into rhythmic and non-rhythmic snoring according to the presence of air flow interruptions due to
obstructive apneas. Patients with primary snoring revealed peak intensities between 100 and 300 Hz. Patients with an obstructive
sleep apnea syndrome (OSAS) revealed peak intensities above 1,000 Hz. Polysomnographical data (AHI, mean and minimum SpO2) as well as body mass index (BMI) correlated with peak intensity of the power spectrum. None of the parameters of the clinical
examination correlated with peak intensity. Frequency analysis of snoring sounds provides a useful diagnostic tool to distinguish
between different patterns of snoring and respective SDB. The topodiagnosis of snoring is not possible by means of frequency
analysis or clinical examination alone. Acoustical analysis of snoring sounds seems a promising additional diagnostic tool
to verify different types of SDB in snoring patients. 相似文献