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تعداد نتایج: 17040813 فیلتر نتایج به سال:
HYPOTHESIS Marked peripheral vasodilation and rubor characterize critically ischemic limbs on dependency. We believe that intermittent claudication is also associated with peripheral hemodynamic changes on postural alteration, which differ distinctly from normal. Evaluation of such differences and understanding of the underlying physiological derangements may be essential in the development of ...
CONTEXT Little is known about the population-based prevalence of neuropsychiatric symptoms in mild cognitive impairment (MCI). OBJECTIVE To estimate the prevalence of neuropsychiatric symptoms in MCI and normal cognitive aging in a defined population. DESIGN Cross-sectional study derived from an ongoing population-based prospective cohort study. SETTING The Mayo Clinic Study of Aging. P...
Maternal thyroid function was investigated in 32 pre-eclamptic women and 10 normal pregnant women in their third trimester. Serum total tri-iodothyronine (TT3) and total thyroxine (TT4) were decreased significantly (P < 0.001) and TSH was increased significantly (P < .001) in pre-eclampsia as compared to normal pregnancy. There was no influence of parity and maternal age on thyroid functions. T...
BACKGROUND AND PURPOSE The brain stem in patients with periventricular leukomalacia (PVL) appears smaller than normal on MR imaging, but few reports have described this feature, and the number of patients has been relatively small. The present study was conducted to examine the hypothesis that the pons in patients with PVL is smaller than normal. MATERIALS AND METHODS Using MR imaging, we exa...
Rats(r) with secondary hyperparathyroidism were studied to define the relationship between vitamin D metabolites and rPTH levels measured by 3 different rat ELISAs. Controls and renal failure (RF) rats were on a normal diet, while 2 groups on a low-calcium (-Ca) or a vitamin D-deficient (-D) diet. RF was induced surgically. Mild RF rats had normal calcium and 25(OH)D but reduced 1,25(OH)(2)D le...
STUDY OBJECTIVES To develop and demonstrate the utility of measures of sleep continuity based on survival analysis techniques. DESIGN Retrospective. SETTING University sleep laboratory. PATIENTS Anonymous nocturnal polysomnograms from 10 normal subjects, 10 subjects with mild sleep disordered breathing (SDB) (apnea-hypopnea index [AHI], 15-30/hr), and 10 subjects with moderate/severe SDB ...
PURPOSE To present the results of a polyurethane meniscal scaffold implant in 10 patients with persistent pain after meniscectomy. METHODS Prospective, descriptive study of ten patients who underwent arthroscopic implantation of a polyurethane meniscal scaffold. Functional, MRI, and radiography assessment was performed pre-operatively and at 6-months, 1-year, and a final follow-up at a minimu...
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
Persistent Empiric COPD Diagnosis and Treatment After Pulmonary Function Test Showed No Obstruction.
BACKGROUND Health-care providers often diagnose and empirically treat COPD without a confirmative pulmonary function test (PFT) or even despite a PFT that is not diagnostic of obstructive lung disease. We hypothesized that a portion of patients continue to carry a persistent empiric COPD diagnosis and receive treatment with bronchodilators and inhaled steroids after a PFT shows no obstruction. ...
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