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排序方式: 共有2281条查询结果,搜索用时 15 毫秒
81.
Cardiometabolic differences in children born after in vitro fertilization: follow-up study 总被引:1,自引:0,他引:1
Ceelen M van Weissenbruch MM Vermeiden JP van Leeuwen FE Delemarre-van de Waal HA 《The Journal of clinical endocrinology and metabolism》2008,93(5):1682-1688
CONTEXT: Increasing evidence suggests that adverse conditions during early prenatal life are associated with cardiometabolic dysfunction in postnatal life. In vitro fertilization (IVF) conception may be an early prenatal life event with long-term health consequences. OBJECTIVE: Our objective was to investigate several cardiometabolic measures in 8- to 18-yr-old IVF singletons and spontaneously conceived controls born from subfertile parents. DESIGN AND SETTING: This follow-up study was conducted at the VU University Medical Center, Amsterdam, The Netherlands. PARTICIPANTS: Blood pressure was examined in 225 IVF-conceived children and 225 age- and gender-matched spontaneously conceived control children. Several indicators of insulin resistance were studied in a pubertal subpopulation (131 IVF children and 131 controls). MAIN OUTCOME MEASURES: Blood pressure, fasting glucose, and fasting insulin were determined. RESULTS: Systolic and diastolic blood pressure levels were higher in IVF children than controls (109 +/- 11 vs. 105 +/- 10 mm Hg, P < 0.001; and 61 +/- 7 vs. 59 +/- 7 mm Hg, P < 0.001, respectively). Children born after IVF were also more likely to be in the highest systolic and diastolic blood pressure quartiles (odds ratio = 2.1, 95% confidence interval 1.4, 3.3; odds ratio = 1.9, 95% confidence interval 1.2, 3.0, respectively). Furthermore, higher fasting glucose levels were observed in pubertal IVF children (5.0 +/- 0.4 vs. 4.8 +/- 0.4 mmol/liter in controls; P = 0.005). Blood pressure and fasting glucose differences could not be explained by current body size, birth weight, and other early life factors or by parental characteristics, including subfertility cause. CONCLUSIONS: These findings highlight the importance of continued cardiometabolic monitoring of IVF-conceived children and might contribute to current knowledge about periconceptional influences and their consequences in later life. 相似文献
82.
Hydrolysis of RNA/DNA hybrids containing nonpolar pyrimidine isosteres defines regions essential for HIV type 1 polypurine tract selection
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83.
Mirjam I. Lutz Ivan Milenkovic Günther Regelsberger Gabor G. Kovacs 《Neuromolecular medicine》2014,16(2):405-414
Aging is one of the major risk factors for Alzheimer’s disease (AD). Sirtuins are associated with prolonged life span. To examine whether the expression levels of sirtuins associate with the progression of AD or not, we performed a comparative immunoblotting and immunohistochemical study of SIRT1, 3, and 5 in the entorhinal cortex and hippocampal subregions and white matter in 45 cases grouped according to Braak and Braak stages of neurofibrillary degeneration. In addition, we compared the expression levels with the local load of tau and amyloid-beta deposits, evaluated using morphometry. Our study revealed that (1) the neuronal subcellular redistribution of SIRT1 parallels the decrease in its expression, suggesting stepwise loss of neuroprotection dependent on the neuronal population; (2) in contrast to SIRT1 and 3, expression of SIRT5 increases during the progression of AD; (3) which might be related to its appearance in activated microglial cells. The complex patterns of the expression of sirtuins in relation to tissue damage should be taken into account when searching for therapies interacting with sirtuins. 相似文献
84.
Unilateral and Multilateral Congenital Coronary‐Pulmonary Fistulas in Adults: Clinical Presentation,Diagnostic Modalities,and Management With a Brief Review of the Literature
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85.
86.
Heidelore Backes Bruno Dietsche Arne Nagels Mirjam Stratmann Carsten Konrad Tilo Kircher Axel Krug 《European archives of psychiatry and clinical neuroscience》2014,264(7):631-645
Major depression is associated with impairments in semantic verbal fluency (VF). However, the neural correlates underlying dysfunctional cognitive processing in depressed subjects during the production of semantic category members still remain unclear. In the current study, an overt and continuous semantic VF paradigm was used to examine these mechanisms in a representative sample of 33 patients diagnosed with a current episode of unipolar depression and 33 statistically matched healthy controls. Subjects articulated words in response to semantic category cues while brain activity was measured with functional magnetic resonance imaging (fMRI). Compared to controls, patients showed poorer task performance. On the neural level, a group by condition interaction analysis, corrected for task performance, revealed a reduced task-related deactivation in patients in the right parahippocampal gyrus, the right fusiform gyrus, and the right supplementary motor area. An additional and an increased task-related activation in patients were observed in the right precentral gyrus and the left cerebellum, respectively. These results indicate that a failure to suppress potentially interfering activity from inferior temporal regions involved in default-mode network functions and visual imagery, accompanied by an enhanced recruitment of areas implicated in speech initiation and higher-order language processes, may underlie dysfunctional cognitive processing during semantic VF in depression. The finding that patients with depression demonstrated both decreased performance and aberrant brain activation during the current semantic VF task demonstrates that this paradigm is a sensitive tool for assessing brain dysfunctions in clinical populations. 相似文献
87.
Susanne J van Veluw Wilmar M T Jolink Jeroen Hendrikse Mirjam I Geerlings Peter R Luijten Geert Jan Biessels Catharina J M Klijn 《Journal of cerebral blood flow and metabolism》2014,34(7):1104-1106
In patients with spontaneous intracerebral hemorrhage (ICH) coexisting abnormalities on brain imaging can provide clues on the etiology of the underlying small vessel disease. We examined cortical cerebral microinfarcts as a novel marker of coexistent vascular damage in ICH. Twelve patients with spontaneous ICH and 15 controls underwent 7Tesla magnetic resonance imaging (MRI). Microinfarcts were present in 9 of 12 patients with spontaneous ICH, and in 5 of 15 controls. This explorative study shows, for the first time, that microinfarcts appear to be a very common vascular comorbidity in spontaneous ICH. Future larger studies should further assess the etiological significance of these lesions. 相似文献
88.
Marlous Hoogstraat Mirjam S. de Pagter Geert A. Cirkel Markus J. van Roosmalen Timothy T. Harkins Karen Duran Jennifer Kreeftmeijer Ivo Renkens Petronella O. Witteveen Clarence C. Lee Isaac J. Nijman Tanisha Guy Ruben van ’t Slot Trudy N. Jonges Martijn P. Lolkema Marco J. Koudijs Ronald P. Zweemer Emile E. Voest Edwin Cuppen Wigard P. Kloosterman 《Genome research》2014,24(2):200-211
89.
Lise M Verhoef Tom H Van de Belt Lucien JLPG Engelen Lisette Schoonhoven Rudolf B Kool 《Journal of medical Internet research》2014,16(2)
Background
Insight into the quality of health care is important for any stakeholder including patients, professionals, and governments. In light of a patient-centered approach, it is essential to assess the quality of health care from a patient’s perspective, which is commonly done with surveys or focus groups. Unfortunately, these “traditional” methods have significant limitations that include social desirability bias, a time lag between experience and measurement, and difficulty reaching large groups of people. Information on social media could be of value to overcoming these limitations, since these new media are easy to use and are used by the majority of the population. Furthermore, an increasing number of people share health care experiences online or rate the quality of their health care provider on physician rating sites. The question is whether this information is relevant to determining or predicting the quality of health care.Objective
The goal of our research was to systematically analyze the relation between information shared on social media and quality of care.Methods
We performed a scoping review with the following goals: (1) to map the literature on the association between social media and quality of care, (2) to identify different mechanisms of this relationship, and (3) to determine a more detailed agenda for this relatively new research area. A recognized scoping review methodology was used. We developed a search strategy based on four themes: social media, patient experience, quality, and health care. Four online scientific databases were searched, articles were screened, and data extracted. Results related to the research question were described and categorized according to type of social media. Furthermore, national and international stakeholders were consulted throughout the study, to discuss and interpret results.Results
Twenty-nine articles were included, of which 21 were concerned with health care rating sites. Several studies indicate a relationship between information on social media and quality of health care. However, some drawbacks exist, especially regarding the use of rating sites. For example, since rating is anonymous, rating values are not risk adjusted and therefore vulnerable to fraud. Also, ratings are often based on only a few reviews and are predominantly positive. Furthermore, people providing feedback on health care via social media are presumably not always representative for the patient population.Conclusions
Social media and particularly rating sites are an interesting new source of information about quality of care from the patient’s perspective. This new source should be used to complement traditional methods, since measuring quality of care via social media has other, but not less serious, limitations. Future research should explore whether social media are suitable in practice for patients, health insurers, and governments to help them judge the quality performance of professionals and organizations. 相似文献90.
Moorhouse Michael J van Zessen David IJspeert Hanna Hiltemann Saskia Horsman Sebastian van der Spek Peter J van der Burg Mirjam Stubbs Andrew P 《BMC immunology》2014,15(1):1-9