Qidong Wang

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PURPOSE To investigate the relationship of age-related maculopathy, cataract, and glaucoma to visual acuity in the population-based Beaver Dam Eye Study. METHODS A cross-sectional, population-based study was performed in people 43 through 86 years of age residing in Beaver Dam, Wisconsin, who were identified between 1987 and 1988 and examined (n = 4926)(More)
PURPOSE To characterize the process by which overexpression of normal opsin leads to photoreceptor degeneration. METHODS Three transgenic mouse lines were generated that express different levels of an opsin with three amino acid modifications at the C terminus. These modifications created an epitopic site that can be readily distinguished from the(More)
It is well known that iron accumulates in the brains of patients with various neurodegenerative diseases. To better understand disease-related iron changes, it is necessary to know the physiological distribution and accumulation of iron in the human brain. Studies have shown that brain iron levels increase with aging. However, the effects of gender and(More)
BACKGROUND Functional neuroimaging has been used in neurolinguistic research on normal subjects and on patients with brain damage. This study was designed to investigate the differences of the neural basis underlying language processing between normal subjects and aphasics. METHODS Functional magnetic resonance imaging (fMRI) was used to map the language(More)
Recent imaging studies have shown that brain morphology and neural activity during sexual arousal differ between homosexual and heterosexual men. However, functional differences in neural networks at the resting state is unknown. The study is to characterize the association of homosexual preference with measures of regional homogeneity and functional(More)
  • Hongyan H Oliver, Kelly Sims, Gallagher, Mengliang Li, Kongjian Qin, Jianwei Zhang +11 others
  • 2009
The views expressed within this paper are the authors' and do not necessarily reflect those of the organizations they are affiliated with. This paper is available at www.belfercenter.org/energy. Acknowledgement The Beijing Study would not be possible without the support from and collaboration of many institutes and organizations. First, we would like to(More)
Replanning in intensity-modulated radiotherapy (IMRT) has been reported to improve quality of life and loco-regional control in patients with nasopharyngeal cancer (NPC). Determination of the criteria for replanning is, however, urgently needed. We conducted a prospective study to determine when and for what type of patients is replanning preferred through(More)
INTRODUCTION Neuroimaging studies have reported differences in brain structure and function between homosexual and heterosexual men. The neural basis for homosexual orientation, however, is still unknown. AIM This study characterized the association of homosexual preference with measures of fractional amplitude of low-frequency fluctuation (fALFF) and(More)
OBJECTIVE To examine the age, sex, and hemispheric differences in volume of the striatum by MRI in healthy adults. METHODS The volumes of the bilateral caudate nucleus and putamen were measured on MR images in 100 healthy right-handed adults (18-70 y). RESULTS The volume of bilateral caudate nucleus and putamen in healthy adults was (8.42 +/-0.88) cm(3)(More)