(1) The high amino acid levels in the cells suggest that these cells act as inter-organ transporters and reservoirs of amino acids, they have a different role in their handling and metabolism from those of mammals.
(2) Ernst Reissner studied the formation of the inner ear initially using the embryos of fowls, then the embryos of mammals, mainly cows and pigs, and to a less extent the embryos of man.
(3) The binaural characteristics of cells in MSO were different from those in nonecholocating mammals.
(4) The findings support our earlier suggestion that the kinetics of spermatogenesis in the quail are fundamentally similar to the pattern which has been described for mammals.
(5) So far, attempts to produce linolenic acid deficiency in mammals have not revealed an absolute requirement for n-3 fatty acids.
(6) Somewhat surprisingly then, in view of the mechanisms in mammals, birds do not seem to use this seasonal message in the photoperiodic control of reproduction.
(7) This indicates a functional relationship between material supplied via the rapid phase of axonal transport and an unimpaired transsynaptic signal transmission, previously not revealed in the central nervous system of mammals.
(8) Nucleus z in the rat was found to be similar in location to nucleus z in other mammals.
(9) Phyla as diverse as insects, birds, and mammals possess distinct HRAS and KRAS sequences, suggesting that these genes are essential to metazoa.
(10) The presence in lamprey kidney of a loop which is similar to Henle's loop in mammals and birds indicates that the development of the system of osmotic concentration conditioned by the formation in the kidney of the medulla and from a sharp increase in renal arterial blood supply.
(11) Investigations carried out in Pavlodar Province have shown that 7 species of ixodid ticks, Ixodes crenulatus, I. lividus, I. persulcatus, I. laguri laguri, Dermacentor marginatus, D. reticulatus, Haemaphysalis concinna, and one brought species, Hyalomma asiaticum, parasitize domestic animals and wild mammals.
(12) Ecologic studies of small mammals in Rocky Mountain National Park (RMNP) were conducted in 1974 in order to identify the specific habitats within the Lower Montane Forest that support Colorado tick fever (CTF) virus.
(13) Dictated by underlying physicochemical constraints, deceived at times by the lulling tones of the siren entropy, and constantly vulnerable to the vagaries of other more pervasive forms of biological networking and information transfer encoded in the genes of virus and invading microorganisms, protein biorecognition in higher life forms, and particularly in mammals, represents the finely tuned molecular avenues for the genome to transfer its information to the next generation.
(14) It encodes a homeobox gene closely related to the developmentally regulated homeotic genes of flies and mammals.
(15) Based on the fact that all hibernators, at their regulated minimal body temperature, display a uniform turnover rate, related to body weight, the hypothesis is developed that cold tolerance of mammals is generally limited by a common specific minimal metabolic rate, which larger organisms, because of their lower basal metabolism, already attain in less profound hypothermia.
(16) Based on morphological, virological, biochemical and molecular biological data, it is proposed that the presence of endogenous retrovirus particles in the placental cytotrophoblasts of many mammals is indicative of some beneficial action provided by the virus in relation to cell fusion, syncytiotrophoblast formation and the creation of the placenta.
(17) Thus, the possibility exists that androgen secretion in some chelonian systems may exhibit a high degree of LH specificity like that of mammals and birds.
(18) Chlorinated ethylenes are metabolized in mammals, as a first step, to epoxides.
(19) This agrees with previous ultrastructural observations that, in small mammals, neither basement membranes nor large connective tissue spaces are found inside enteric ganglia.
(20) In recent studies, we have found that Gal alpha 1----3Gal beta 1----4GlcNAc residues are abundant on red cells and nucleated cells of nonprimate mammals, prosimians, and New World monkeys, but their expression is diminished in Old World monkeys, apes, and humans.
Mediastinum
Definition:
(n.) A partition; a septum; specifically, the folds of the pleura (and the space included between them) which divide the thorax into a right and left cavity. The space included between these folds of the pleura, called the mediastinal space, contains the heart and gives passage to the esophagus and great blood vessels.
Example Sentences:
(1) The masses were solitary and located in the retroperitoneum (five cases), mediastinum (one case), and axilla (one case).
(2) In general, air from the mediastinum far more often enters the left pleural cavity than the right one.
(3) Although bronchogenic cysts may involve the mediastinum, they have rarely been responsible for significant upper airway obstruction.
(4) X-ray CT and MRI of the mediastinum showed images compatible with residual thymic tissue in 8 of 9 patients.
(5) Three years after radiotherapy to the mediastinum for Hodgkin's disease, a 28 year old female presented with incapacititating angina.
(6) Autopsy findings showed no scar formation of his testes, and the primary lesion was finally diagnosed to be in the anterior mediastinum.
(7) A round mass in the dorsal, upper-right mediastinum is demonstrated in a patient with aneurysm of the innominate artery.
(8) Testicular tissue at ectopic site was identified by presence of characteristic signal intensity pattern, mediastinum testis and its location along empty spermatic canal in cases of inguinal testis either singly or in combination.
(9) All SR algorithms that were postprocessed to optimize imaging of the mediastinum were significantly inferior to FR in the detection of pulmonary lesions.
(10) Clearance into the mediastinum may be the major pathway for liquid sequestered in the loose, binding connective tissue.
(11) By means of several diagnostic procedures consisting of radiography, fluoroscopy, roentgen-kymography, angiocardiography and needle-biopsy under visible control it is often possible to distinguish between primary pericardiac lesions and growths of the mediastinum lying in close contact to the heart.
(12) The authors present the selective catheterization of the veins of the neck and mediastinum via the subclavian vein.
(13) those undergoing extended lymphadenectomy (particularly for lymph nodes of both sides of neck and upper mediastinum) and those of old age (70 years or above), were investigated for eventual characteristic features of postoperative changes in the parameters mentioned above.
(14) In order to study the effects of the commonly employed contrast media alone and in combination with bacteria in the mediastinum, various mixtures of barium and meglamine diatrizoate (Gastrografin) with and without flora were instilled in the mediastinum of 29 domestic cats.
(15) Five of the six stage 2 patients had positive foci located in the mediastinum or the lung areas and in the myocardium in one of them.
(16) In CT diagnosis for this type of dissection, cautions should be employed not only in an inhomogenous density area in the mediastinum and pleural cavity but also in the presence of deviation of intimal calcification and relatively high density area of crescent shape in aortic wall on plain CT.
(17) The PPD was positive and X-ray showed widening of the mediastinum.
(18) Similar cellulitis, mainly perivascular, was found in kidneys and anterior mediastinum.
(19) Further venous samplings were collected during cervico mediastinal phlebography because of persistent hypercalcemia: parathormone levels were high in a thymic vein and a new cervicotomy revealed a fifth gland with an adenoma in the high mediastinum.
(20) 58 patients have been operated for neurogenic tumors of the mediastinum.