نتایج جستجو برای: abnormal retinal vessels

تعداد نتایج: 256742  

Journal: :iranian journal of radiology 0
parinaz mehnati department of medical physics, school of medicine, tabriz university of medical sciences, tabriz, iran maede jafari tirtash department of medical physics, school of medicine, tabriz university of medical sciences, tabriz, iran; department of medical physics, school of medicine, tabriz university of medical sciences, tabriz, iran. fax: +98-4133364660 mohammad sadegh zakerhamidi research institute for applied physics and astronomy, tabriz university, tabriz, iran parisa mehnati research institute for applied physics and astronomy, tabriz university, tabriz, iran

objectives in this study, the absorption coefficient of hemoglobin (hb) was used to distinguish between normal and abnormal breast tissue. materials and methods a near-infrared source (637 nm) was transmitted from major and minor vessels of a breast phantom containing 2×, 4× concentrations of oxy- and deoxy-hb. the absorption coefficients were determined from spectrometer (sm) and powermeter (p...

Journal: :Proceedings of the Royal Society of Medicine 1947

Journal: :Proceedings of the Royal Society of Medicine 1928

Journal: :British Journal of Ophthalmology 1960

2017
Xinyun Kou Shufei Yang Yali Qin Chao Yang Tingting Deng Dan Luo Ming Jin

Objective. This study aimed to determine the influence of Tang Wang One Decoction (TWOD) on the retinal vessels of diabetic rats. Methods. The hemorheology of diabetic rats was observed. Morphological studies of retinal vessels were conducted using optical microscopy and electron microscopy. Immunological histochemistry assay was used to measure the expression levels of MMP-9, occludin, and cla...

Journal: :Human molecular genetics 2003
Cécile Dalloz Rachel Sarig Patrice Fort David Yaffe Agnès Bordais Thomas Pannicke Jens Grosche Dominique Mornet Andreas Reichenbach José Sahel Uri Nudel Alvaro Rendon

The abnormal retinal neurotransmission observed in Duchenne muscular dystrophy (DMD) patients and in some genotypes of mice lacking dystrophin has been attributed to altered expression of short products of the dystrophin gene. We have investigated the potential role of Dp71, the most abundant C-terminal dystrophin gene product, in retinal electrophysiology. Comparison of the scotopic electroret...

2014
Sarah Saab Bénédicte Buteau Laurent Leclère Alain M. Bron Catherine P. Creuzot-Garcher Lionel Bretillon Niyazi Acar

OBJECTIVE Proper development of retinal blood vessels is essential to ensure sufficient oxygen and nutrient supplies to the retina. It was shown that polyunsaturated fatty acids (PUFAs) could modulate factors involved in tissue vascularization. A congenital deficiency in ether-phospholipids, also termed "plasmalogens", was shown to lead to abnormal ocular vascularization. Because plasmalogens a...

Journal: :Investigative ophthalmology & visual science 2004
Anne V Ohlmann Edith Adamek Andreas Ohlmann Elke Lütjen-Drecoll

PURPOSE To investigate the nature and origin of the vitreous membranes in mice with knock-out of the Norrie gene product (ND mice). METHODS Eighty-two eyes of ND mice of different age groups (postnatal day [P]0-13 months) and 95 age-matched wild-type control mice were investigated. In vitreoretinal wholemounts and in sagittal sections, vessels and free cells were visualized by labeling for le...

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