Left Periphery
Mostrando 13-24 de 28 artigos, teses e dissertações.
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13. A unique pulmonary venous abnormality: with associated pulmonary arterial anomaly and arteriovenous malformation.
A man aged 29 was first seen at the age of 11, when he was found to have a congenital anomaly of the pulmonary veins which follow an abnormal course to the hilum. On the left side, two large veins descend peripherally before turning medially towards the left atrium; on the right, several smaller veins follow a similar circuitous route from the periphery, bef
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14. The distribution of amosite asbestos in the periphery of the normal human lung.
Although theoretical models and experiments on animals exist that predict the distribution of asbestos fibres in the lung, there are few studies in man that relate to this question and they have generated contradictory results. To examine this distribution analytical electron microscopy was employed to determine the amosite fibre concentration, size, surface
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15. Tubulo-vascular relationships in the developing kidney.
The postnatal development of the tubulo-vascular relationships in the kidney was studied in 60 rats. The kidney is relatively immature at birth and only the juxtamedullary glomeruli are present. As their loops of Henle develop they grow down into the medulla around the previously developed collecting ducts, forming tubulovascular 'units' around whose periphe
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16. Immunological detection of left-handed Z DNA in isolated polytene chromosomes. Effects of ionic strength, pH, temperature and topological stress.
We have searched for the presence of left-handed Z DNA in unfixed polytene chromosomes isolated from the salivary glands of Chironomus thummi larvae. Physiological as well as fixation conditions were explored to assess the effects of a variety of factors known to influence the B-Z equilibrium. At neutral pH and physiological ionic strength, a weak immunofluo
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17. Patterns of innervation of neurones in the inferior mesenteric ganglion of the cat.
The patterns of peripheral and central synaptic input to non-spontaneous, irregular discharging and regular discharging neurones in the inferior mesenteric ganglion of the cat were studied in vitro using intracellular recording techniques. All three types of neurones in rostral and caudal lobes received central synaptic input primarily from L3 and L4 spinal
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18. Conserved requirement for EGF–CFC genes in vertebrate left–right axis formation
Specification of the left–right (L-R) axis in the vertebrate embryo requires transfer of positional information from the node to the periphery, resulting in asymmetric gene expression in the lateral plate mesoderm. We show that this activation of L-R lateral asymmetry requires the evolutionarily conserved activity of members of the EGF–CFC family of extr
Cold Spring Harbor Laboratory Press.
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19. Cartilage-containing tumours of the lung: Relationship between the purely cartilaginous type (chondroma) and the mixed type (so-called hamartoma): an unusual case of multiple tumours 1
An unusual case is reported of a woman aged 27 years who presented with four intrapulmonary cartilage-containing tumours which were resected from the left lung. The appearance of two new shadows in the chest several years later suggested that two of the resected tumours had recurred. Three of the four resected tumours consisted entirely of cartilage and bone
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20. Cartilage fibrillation at the ankle joint in Liverpool necropsies.
The articular surfaces have been examined in 45 left ankle joints from a random series of adult necropsies in the city of Liverpool. Foci of overt fibrillation, with frank splitting of the articular cartilage surface, were extremely common in the ankle joint and were often already apparent in young adults. With increasing age overt fibrillation tended on the
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21. A low copy number central sequence with strict symmetry and unusual chromatin structure in fission yeast centromere.
Fission yeast centromeres vary in size but are organized in a similar fashion. Each consists of two distinct domains, namely, the approximately 15-kilobase (kb) central region (cnt+imr), containing chromosome-specific low copy number sequences, and 20- to 100-kb outer surrounding sequences (otr) with highly repetitive motifs common to all centromeres. The ce
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22. Structural study of pulmonary circulation and of heart in total anomalous pulmonary venous return in early infancy.
Quantitative morphometric techniques have been applied to the injected and inflated lung and to the heart in 9 infants with total anomalous pulmonary venous return dying with obstruction to pulmonary venous return. In 5 (mean age at death 55 days) pge 20 days) to an infradiaphragmatic site. Structural changes were present in the pulmonary circulation in all
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23. Referred phantom sensations and cortical reorganization after spinal cord injury in humans
To test the hypothesis that cortical remapping supports phantom sensations, we examined referred phantom sensations and cortical activation in humans after spinal-cord injury (SCI) at the thoracic level (T3-T12). Of 12 SCI subjects, 9 reported phantom sensations, and 2 reported referred phantom sensations. In both of these subjects, referred phantom sen
The National Academy of Sciences.
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24. The ultrastructure of the sensory end-organs (baroreceptors) in the atrial endocardium of young mini-pigs.
Light and electron microscopical studies on pig hearts have confirmed the presence in the right and the left atrial endocardium of distinct circumscribed, unencapsulated end-organs (baroreceptors) associated with 4-9 mum thick nerve fibres. The myelin sheath terminates before the entrance of the nerve into the end-organ. The regular presence of thin axon pro