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Rinne UK, Riekkinen P, Sonninen V, Laaksonen H. Brain acetylcholinesterase in Parkinson's disease. Acta Neurol Scand 2009; 49:215-26. [PMID: 4718190 DOI: 10.1111/j.1600-0404.1973.tb01293.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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2
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Chraibi Z, Alfsen A, Lavialle F. In vitro insertion of the myelin proteolipid apoprotein into oligodendrocyte plasma membranes. Neurochem Res 1989; 14:1153-7. [PMID: 2594144 DOI: 10.1007/bf00965623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Uncoated vesicles (UCV) loaded with the myelin proteolipid apoprotein covalently tagged with fluorescein (PLPF) were found to interact with isolated oligodendrocytes from bovine brain at 4 degrees C as well as at 37 degrees C. After 1.5 hours of incubation, the labeled protein was localized in the cell membranes. After 2.5 hours the fluorescence intensity associated with the oligodendrocytes decreased and completely disappeared at t = 3.5 hours. Addition of KCl or EDTA in the incubation medium significantly hindered the interaction with cells. In contrast, the elimination of membrane proteins from UCV did not perturb cell labeling. A specific role of PLP was suggested since UCV loaded with a soluble protein (BSAF) led to a weak cell labeling.
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Affiliation(s)
- Z Chraibi
- UPR 64 Cnrs, UFR Biomédicale des Saints-Pères, Paris, France
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Bomsel M, de Paillerets C, Weintraub H, Alfsen A. Lipid bilayer dynamics in plasma and coated vesicle membranes from bovine adrenal cortex. Evidence of two types of coated vesicle involved in the LDL receptor traffic. BIOCHIMICA ET BIOPHYSICA ACTA 1986; 859:15-25. [PMID: 3087424 DOI: 10.1016/0005-2736(86)90313-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Pure coated vesicles have been prepared from the bovine adrenal cortex and two homogeneous populations have been separated, one of large diameter (100 nm) and one of small diameter (70 nm). The chemical composition in lipids and proteins of coated vesicles has been compared with that of partially purified plasma membranes and evidences a higher protein/lipid ratio and a higher concentration in phosphatidylethanolamine and unsaturated fatty acids. Evaluation of the lateral diffusion of pyrene in the lipid bilayer of coated vesicles as compared to uncoated vesicles evidences a slowing-down effect of clathrin. Measurements of lipids' rotational diffusion by time-resolved fluorescence indicate a decrease in the order parameter of the lipids in the coated vesicles due to clathrin. A hypothesis is proposed for a possible role of the clathrin coat in the concerted motion of lipids and proteins toward coated pits and in the mechanism of formation of coated vesicles. Separation of the large from the small coated vesicles made it possible to reveal different protein components in the two types of vesicle by electrophoresis and autoradiograms of the [gamma-32P]adenosine triphosphate- (ATP-) treated vesicles. Visualisation of the low-density lipoprotein receptor by ligand blotting and enzyme-linked immunosorbent assay (ELISA) techniques indicates an increased low-density lipoprotein receptor binding capacity in small coated vesicles as compared to large ones and plasma membranes.
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DeKosky ST, Scheff SW, Hackney CG, Bass NH. Strain differences and laminar localization of structural neurochemical changes in aging rat. Neurobiol Aging 1985; 6:277-86. [PMID: 4088423 DOI: 10.1016/0197-4580(85)90004-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
To obtain comparisons of age-related microchemical changes in cerebral cortex of two commonly employed rat strains (Fischer 344 and Sprague-Dawley), neurochemical assays of substances regarded as quantitative indices of structural entities in brain were performed. These included DNA as a marker for cells, lipid sialoganglioside as an index of neuronal membrane mass, and galactocerebroside as an index of myelin. Fischer 344 rats were studied at 3-4 months (young), 14-16 months (middle age) and 25-28 months (old). Sprague-Dawleys were examined at 3-6 months (young), 14-17 months (middle age) and 25-28 months (old). Significant differences in the time courses of changes occurred; Fischer rats increased their brain weight at each aging point, while Sprague-Dawley rats reached stable brain weights by 4 months of age. Neither strain had a significant change in cell packing density of somatosensory cortex as measured by DNA. However, total ganglioside sialic acid declined in both strains, occurring by middle age in the Fischer and not until senescence in the Sprague-Dawley cortex. Cerebroside galactose increased in the Fischer between young and middle age, and was not further elevated in the older group. The Sprague-Dawley had its major increase in this marker between the middle aged and senescent groups. Intralaminar assays of these same markers in young and old Fisher 344 rats again indicated that DNA did not change, and that sialoganglioside was lost from all layers of the cortex in equal amounts. However, the increase in galactocerebroside resulted entirely from increases in the lower lamina of somatosensory cortex (lamina IV and below), suggesting on-going myelination of afferent and efferent axons. The time course of lipid membrane alteration is strain-dependent and selective as to cortical laminar localization. The findings are discussed in reference to human aging change in the same neurochemical indices.
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Alfsen A, de Paillerets C, Prasad K, Nandi PK, Lippoldt RE, Edelhoch H. Organization and dynamics of lipids in bovine brain coated and uncoated vesicles. EUROPEAN BIOPHYSICS JOURNAL : EBJ 1984; 11:129-36. [PMID: 6152719 DOI: 10.1007/bf00276628] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Three characteristics have been demonstrated by the chemical analysis of bovine brain coated vesicles following removal of the coat proteins: a high protein content, a high cholesterol/lipid ratio and a high percentage of phosphatidylethanolamine amongst the phospholipids. The study of lipid bilayer organization and dynamics has been performed using the fluorescent probes pyrene and parinaric acid (cis and trans). This has allowed the study of both lateral mobility and rotational motion in the lipid bilayer of the coated and uncoated vesicles. Lateral mobility in the fluid phase of the lipid is slightly reduced by the presence of the clathrin coat, as indicated by the lower diffusion coefficient of pyrene in coated compared with uncoated vesicles. At all temperatures from 6 degrees to 30 degrees C, solid-phase domains, probed by trans parinaric acid, coexist with fluid-phase domains in the lipid bilayer. The temperature dependence of the parinaric acid lifetimes and of their amplitudes strongly suggests that the solid phase domains decrease in size with temperature, both in coated and uncoated vesicles. However, the difference in the value of the anisotropy at long times (r infinity), between coated and uncoated vesicles (a difference which is more pronounced for cis than for trans parinaric acid), indicates that the presence of the clathrin coat introduces disorder in the surrounding lipids, thus suggesting a possible role of the clathrin in the formation of the pits on the plasma membrane.
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Pietrzak-Flis Z, Wasilewska-Gomułka M. Effect of lifetime intake of organically bound tritium and tritiated water on the oocytes of rats. RADIATION AND ENVIRONMENTAL BIOPHYSICS 1984; 23:61-68. [PMID: 6709828 DOI: 10.1007/bf01326737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Rats were continuously exposed to constant activity of tritium in drinking water (HTO group) or to tritium organically bound in food (T-food group) in the period from conception of F1 generation through maturity. Female offspring were killed at the age of 21 and 71 days and the oocytes in their ovaries were counted. Mean dose rates absorbed in the ovaries were for the HTO groups 7.25 +/- 0.37 and 14.73 +/- 0.79 mGy/day and for the T-food group 4.84 +/- 0.25 mGy/day. Reduction in the oocyte number in the ovaries of females exposed to tritiated food was bigger than in the ovaries of females exposed to tritiated water. The dependence of the survival of small oocytes on the dose rate and the corresponding total accumulated dose had an exponential character. The damaging effect of tritium was for the period from conception to 21 days of age bigger than from 21 to 71 days of age. Of all stages of oocyte development, the highest sensitivity to tritium irradiation was observed in small oocytes and oocytes with one complete layer of follicle cells. As a result, relative number of growing and large oocytes increased.
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Abstract
Transection of postganglionic nerves of the rat superior cervical ganglion results in significant increases in the concentration of lipid as well as the total content of lipid in the ganglion. The purpose of this work was to characterize the effect of axotomy on the major classes of lipid in the ganglion and to examine possible relationships among increases in lipid content and changes in steady-state concentrations of metabolites utilized in lipid biosynthesis. Major classes of lipids in axotomized and contralateral intact ganglia were compared using the Folch extraction and partitioning scheme. Analyses of lipids were carried out 7 days after axotomy because total lipid content was increased maximally at that time. The increase in lipid content in axotomized ganglia was related primarily to an increase in phospholipids. Amounts of gangliosides, cerebrosides, cholesterol, and proteolipid protein did not change significantly after axotomy. The elevation of phospholipid content was accompanied by increases in steady-state concentrations of alpha-glycerophosphate and decreases in Coenzyme A in the ganglion; however, concentrations of acetyl CoA and long-chain acyl CoA compounds did not change significantly in axotomized ganglia. Increases in alpha-glycerophosphate do not appear to arise from enhanced utilization of glucose because alpha-glycerophosphate dehydrogenase activity was decreased in axotomized ganglia and the incorporation of [U-14C] glucose into lipids in explants of the axotomized ganglia in vitro was not elevated. In contrast, incorporation of [U-14C] glycerol into lipids of explants from axotomized ganglia was increased in vitro. The results suggest that utilization of extracellular glycerol for phospholipid biosynthesis may be enhanced in the rat's axotomized superior cervical ganglion.
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Pope A, Amelotte JA, Belfer H, Nixon RA. Protease activities in normal and schizophrenic human prefrontal cortex and white matter. Neurochem Res 1981; 6:1043-52. [PMID: 6174879 DOI: 10.1007/bf00964411] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Endo- and exopeptidase activities have been measured post-mortem human prefrontal cortex and subjacent white matter to estimate their relative capabilities for protein and peptide degradation. Cathepsin D and three dipeptidases versus leucyl-glycine, glycyl-L-leucine and glycyl-glycine) were assayed in serial, microtome prepared frozen sections (+/- 125 micrograms fresh weight) and related to histological composition (Nissl stain), dry weight, total protein, and DNA content. RNA concentrations were similarly determined, serving as approximate indices of protein synthetic potential. Cathepsin D activity and RNA concentration were, respectively, threefold and twofold greater in cortical gray than in subcortical white matter. Each dipeptidase showed somewhat higher activity in white matter than in cortex. In both tissues the order of activities were: glycyl-leucine greater than glycyl-glycine greater than leucyl-glycine dipeptidase. The results are consistent with preferential localizations of cathepsin D in cortical neurons and dipeptidases in neuroglia. None of the four enzymes showed differences in activity in comparable cortex from six patients with chronic schizophrenia.
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Myslivecek J, Stípek S. Effects of early visual and complex stimulation on learning, brain biochemistry, and electrophysiology. Exp Brain Res 1979; 36:343-57. [PMID: 488204 DOI: 10.1007/bf00238916] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A complex stimulation regimen (visual, auditory, and somesthetic-kinesthetic with forced movements, 30 times for 30 min each within 14 days) increased significantly the amplitudes of visual cortical evoked potentials (EPs) in adult rats if applied during the second postnatal fortnight. The EP increase after stimulation during the first 14 days after birth was not significant. Visual stimulation alone was compared with complex stimulation (visual plus forced movements) during the 2nd postnatal fortnight. More specific local changes in the visual cortex were revealed in brain biochemistry (lower DNA concentration, more RNA and protein per cell) and cortical electrogenesis (enhanced visual EPs) after visual stimulation alone, whereas complex stimulation induced more diffuse changes and rather profoundly influenced higher nervous functions (viz., memory retrieval - improved 24-h). Involvement of both specific and nonspecific mechanisms in the aftereffects of early stimulation is indicated.
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Mackay AV, Davies P, Dewar AJ, Yates CM. Regional distribution of enzymes associated with neurotransmission by monoamines, acetylcholine and GABA in the human brain. J Neurochem 1978; 30:827-39. [PMID: 25948 DOI: 10.1111/j.1471-4159.1978.tb10791.x] [Citation(s) in RCA: 109] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Lehrer GM, Maker HS, Silides DJ, Weiss C, Bornstein MB. Anti-whole white matter serum inhibits incorporation of glucose and galactose into the lipids of myelinating spinal cord cultures. J Neurochem 1978; 30:247-51. [PMID: 621510 DOI: 10.1111/j.1471-4159.1978.tb07058.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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12
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Iqbal K, Grundke-Iqbal I, Wisniewski HM. Oligodendroglia from human autopsied brain: bulk isolation and some chemical properties. J Neurochem 1977; 28:707-16. [PMID: 894279 DOI: 10.1111/j.1471-4159.1977.tb10617.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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13
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Hess HH, Bass NH, Thalheimer C, Devarakonda R. Gangliosides and the architecture of human frontal and rat somatosensory isocortex. J Neurochem 1976; 26:1115-21. [PMID: 932717 DOI: 10.1111/j.1471-4159.1976.tb06994.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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14
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Dewar AJ, Reading HW. The role of retinol in, and the action of anti-inflammatory drugs on, hereditary retinal degeneration. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1975; 53:281-95. [PMID: 1119339 DOI: 10.1007/978-1-4757-0731-1_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Light deprivation retarded retinal degeneration in albino dystrophic rats. In pigmented dystrophic rats the presence of pigment in the eye retarded the degenerative process. Retinol labilized rat retinal lysosomes in vitro. Acetylsalicylic acid stabilized retinal lysosomes even in the presence of the concentration of retinol which produced the maximum labilization. The effect of acetylsalicyclic acid was concentration dependent, maximum stabilization being produced by 0.25-0.50 mM. The results provide further evidence for the hypothesis that hereditary retinal degeneration in rats is mediated by an increased amount of retinol (produced by the action of light on an unusually labile type of visual pigment) causing a premature release of lysosomal enzymes.
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Gill TH, Young OM, Tower DB. The uptake of 36C1 into astrocytes in tissue culture by a potassium-dependent, saturable process. J Neurochem 1974; 23:1011-8. [PMID: 4373536 DOI: 10.1111/j.1471-4159.1974.tb10753.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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16
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17
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Yates CM, Dewar AJ, Wilson H, Winterburn AK, Reading HW. Histological and biochemical studies on the retina of a new strain of dystrophic rat. Exp Eye Res 1974; 18:119-33. [PMID: 4825724 DOI: 10.1016/0014-4835(74)90098-0] [Citation(s) in RCA: 46] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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18
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Härkönen MH, Kauffman FC. Metabolic alterations in the axotomized superior cervical ganglion of the rat. I. Energy metabolism. Brain Res 1974; 65:127-39. [PMID: 4149251 DOI: 10.1016/0006-8993(74)90340-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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19
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Fewster ME, Blackstone SC, Ihrig TJ. The preparation and characterization of isolated oligodendroglia from bovine white matter. Brain Res 1973; 63:263-71. [PMID: 4587479 DOI: 10.1016/0006-8993(73)90093-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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20
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Hirose G, Bass NH. Maturation of oligodendroglia and myelinogenesis in rat optic nerve: a quantitative histochemical study. J Comp Neurol 1973; 152:201-9. [PMID: 4761659 DOI: 10.1002/cne.901520207] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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21
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Savolainen H. Differentiation of human cortical neurons: proteins of subcellular particles. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. B, COMPARATIVE BIOCHEMISTRY 1973; 44:467-72. [PMID: 4350882 DOI: 10.1016/0305-0491(73)90020-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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22
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23
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Bass NH, Young E. Effects of hypothyroidism on the differentiation of neurons and glia in developing rat cerebrum. J Neurol Sci 1973; 18:155-73. [PMID: 4690640 DOI: 10.1016/0022-510x(73)90003-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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24
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Demus H. Subcellular fractionation of human lymphocytes. Isolation of two plasma membrane fractions and comparison of the protein components of the various lymphocytic organelles. BIOCHIMICA ET BIOPHYSICA ACTA 1973; 291:93-106. [PMID: 4346313 DOI: 10.1016/0005-2736(73)90064-3] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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25
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Lolley RN. RNA and DNA in developing retinae: comparison of a normal with the degenerating retinae of C3H mice. J Neurochem 1973; 20:175-82. [PMID: 4347044 DOI: 10.1111/j.1471-4159.1973.tb12114.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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26
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Brizzee KR. Quantitative histological studies on aging changes in cerebral cortex of Rhesus monkey and albino rat with notes on effects of prolonged low-dose ionizing irradiation in the rat. PROGRESS IN BRAIN RESEARCH 1973; 40:141-60. [PMID: 4803049 DOI: 10.1016/s0079-6123(08)60684-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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27
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28
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Riekkinen PJ, Rinne UK, Arstila AU, Kurihara T, Pelliniemi TT. Studies on the pathogenesis of multiple sclerosis. 2',3'-Cyclic nucleotide 3-phosphohydrolase as marker of demyelination and correlation of findings with lysosomal changes. J Neurol Sci 1972; 15:113-20. [PMID: 4332850 DOI: 10.1016/0022-510x(72)90124-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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29
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Abrahamson EW, Wiesenfeld JR. The Structure, Spectra, and Reactivity of Visual Pigments. PHOTOCHEMISTRY OF VISION 1972. [DOI: 10.1007/978-3-642-65066-6_3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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30
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Bass NH, Hess HH, Pope A, Thalheimer C. Quantitative cytoarchitectonic distribution of neurons, glia, and DNa in rat cerebral cortex. J Comp Neurol 1971; 143:481-90. [PMID: 4945394 DOI: 10.1002/cne.901430405] [Citation(s) in RCA: 108] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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31
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32
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Pevzner LZ. Topochemical aspects of nucleic acid and protein metabolism within the neuron-neuroglia unit of the spinal cord anterior horn. J Neurochem 1971; 18:895-907. [PMID: 5567909 DOI: 10.1111/j.1471-4159.1971.tb12019.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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33
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Abstract
The nuclei of the giant neurons of the marine mollusk Aplysia californica can contain more than 0.2 microgram of DNA. This is more than 200,000 times as much DNA as the haploid amount found in Aplysia sperm. On the basis of nuclear DNA content, the giant neurons R-2, P-1, and L-6 of adult animals can each be divided into at least two populations. The mean DNA content of these two populations (0.067 and 0.131 microgram of DNA) are approximately related by a factor of 2. This suggests that much and perhaps all of the genome replicates repeatedly (up to 16 times) during the growth and development of these neurons and that each replication is synchronous. The enormous amount of DNA in these cells opens up the possibility of characterizing the DNA and other constituents of chromatin from individual but phenotypically different neurons.
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34
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Rumsby MG, Riekkinen PJ, Arstila AV. A critical evaluation of myelin purification. Non-specific esterase activity associated with central nerve myelin preparations. Brain Res 1970; 24:495-516. [PMID: 5494537 DOI: 10.1016/0006-8993(70)90188-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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35
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Lees MB, Shein HM. Sodium and potassium content of normal and neoplastic rodent astrocytes in cell culture. Brain Res 1970; 23:280-3. [PMID: 5476773 DOI: 10.1016/0006-8993(70)90052-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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36
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Mawatari S. Biochemical study on rat brain in acute carbon monoxide poisoning. FOLIA PSYCHIATRICA ET NEUROLOGICA JAPONICA 1970; 24:123-9. [PMID: 5537149 DOI: 10.1111/j.1440-1819.1970.tb01465.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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37
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Shein HM, Britva A, Hess HH, Selkoe DJ. Isolation of hamster brain astroglia by in vitro cultivation and subcutaneous growth, and content of cerebroside, ganglioside, RNA and DNA. Brain Res 1970; 19:497-501. [PMID: 4910467 DOI: 10.1016/0006-8993(70)90394-x] [Citation(s) in RCA: 64] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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38
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Mehl E, Halaris A. Stoichiometric relation of protein components in cerebral myelin from different species. J Neurochem 1970; 17:659-68. [PMID: 5422547 DOI: 10.1111/j.1471-4159.1970.tb00545.x] [Citation(s) in RCA: 83] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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39
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Hall MO, Bacharach AD. Linkage of retinal to opsin and absence of phospholipids in purified frog visual pigment 500. Nature 1970; 225:637-8. [PMID: 5413371 DOI: 10.1038/225637a0] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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40
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Roozemond RC. Phospholipid composition of some parts of rat hypothalamus, and its relation with some histochemical observations. J Neurochem 1970; 17:179-88. [PMID: 4099717 DOI: 10.1111/j.1471-4159.1970.tb02199.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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41
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Johnston PV, Roots BI. Neuronal and glial perikarya preparations: an appraisal of present methods. INTERNATIONAL REVIEW OF CYTOLOGY 1970; 29:265-80. [PMID: 4929691 DOI: 10.1016/s0074-7696(08)60038-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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42
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43
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Güttler F, Clausen J. Changes in lipid pattern of HeLa cells exposed to immunoglobulin G and complement. Biochem J 1969; 115:959-68. [PMID: 5360726 PMCID: PMC1185238 DOI: 10.1042/bj1150959] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
1. Immunoglobulin G was isolated from sera of non-immunized rabbits or rabbits immunized with whole HeLa cell homogenate. The anti-HeLa immunoglobulin G and its Fab fragment precipitated the particulate 400000g-min. fraction of HeLa cell homogenate. 2. Immunoglobulin G from immunized or non-immunized rabbits and fresh or inactivated complement were added to HeLa cell cultures. Changes in the cell count and cellular contents of DNA, RNA, protein, total and individual phospholipids, cholesterol (and esters) and ganglioside were followed. 3. Addition of immunoglobulin G from non-immunized rabbits and guinea-pig serum (complement) caused a transient increase in DNA followed by a permanent increase in RNA, protein, dry weight and number of cells per culture. 4. Addition of anti-HeLa immunoglobulin G and active complement caused an increase in the cellular content of cholesterol, total phospholipids, lysophosphatidylcholine and lysophosphatidylethanolamine greater than the increase of the controls and a decrease in the molar percentages of phosphatidylcholine and phosphatidylethanolamine as compared with the controls. 5. The cholesterol/phospholipid ratio remained constant. 6. The appearance of lysophosphoglycerides was transient, reaching a maximum 3hr. after addition of anti-HeLa immunoglobulin G. 7. The content of lysophosphoglycerides in HeLa cultures exposed to immunoglobulin G from non-immunized rabbits ranged from 50% to 30% of the values obtained from cultures exposed to the anti-HeLa immunoglobulin G and complement. 8. The changes in the lipid pattern of the HeLa cells were associated with the appearance of juxta-nuclear vacuoles in cells, but were apparently not specifically related to the presence of active complement.
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Abstract
1. A procedure is given for spectrophotometric analysis of rat brain DNA after its resolution into component bases. Amounts of tissue in the range 50-100mg. can be used. 2. The amount of DNA obtained by the present method is 80% greater than that reported for rat brain by a previous procedure specific for DNA thymine. Identity of the material is established by the base ratios of purines and pyrimidines. The features responsible for the higher yield are the presence of dioxan during alkaline hydrolysis of tissue, the determination of the optimum concentration of potassium hydroxide in this step and omission of organic washes of the initial acid-precipitated residues. 3. The requirement for dioxan during alkaline hydrolysis suggests a possible association of brain DNA with lipid. The concentration of potassium hydroxide that gives maximum yield is 0.1m, indicating that there may be internucleotide linkages in this DNA that are more sensitive to alkali than those of liver or thymus DNA. 4. This procedure gives low yields of DNA from liver. It is not suitable for analysis of the DNA from this tissue.
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Bass NH, Hess HH. A comparison of cerebrosides, proteolipid proteins, and cholesterol as indices of myelin in the architecture of rat cerebrum. J Neurochem 1969; 16:731-50. [PMID: 5770019 DOI: 10.1111/j.1471-4159.1969.tb06452.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Kishimoto Y, Agranoff BW, Radin NS, Burton RM. Comparison of the fatty acids of lipids of subcellular brain fractions. J Neurochem 1969; 16:397-404. [PMID: 5802640 DOI: 10.1111/j.1471-4159.1969.tb10380.x] [Citation(s) in RCA: 110] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Arnetoli G, Pazzagli A, Amaducci L. Fatty acid and aldehyde changes in choline- and ethanolamine-containing phospholipids in the white matter of multiple sclerosis brains. J Neurochem 1969; 16:461-3. [PMID: 5795597 DOI: 10.1111/j.1471-4159.1969.tb10387.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Lolley RN, Hess HH. The retinal rod outer segment of the frog: detachment, isolation, phosphorus fractions and enzyme activity. J Cell Physiol 1969; 73:9-23. [PMID: 4237126 DOI: 10.1002/jcp.1040730103] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Lapetina EG, Soto EF, De Robertis E. Lipids and proteolipids in isolated subcellular membranes of rat brain cortex. J Neurochem 1968; 15:437-45. [PMID: 5668044 DOI: 10.1111/j.1471-4159.1968.tb08939.x] [Citation(s) in RCA: 130] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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