What's the difference between helicin and oxidation?
Helicin
Definition:
(n.) A glucoside obtained as a white crystalline substance by partial oxidation of salicin, from a willow (Salix Helix of Linnaeus.)
Example Sentences:
(1) Fluorescence histochemistry shows that helicine arteries are provided with an extremely dense network of adrenergic nerves located at the medio-adventitial border.
(2) The density of nerve fibres was particularly high around the subendothelial cushions of the helicine arteries.
(3) In the helicine artery and bulbus glandis, field stimulation evoked contractions and these contractions were abolished by guanethidine or TTX, indicating that these muscles are innervated by adrenergic excitatory nerve fibres.
(4) The epitheloid modified walls of helicine arteries are built of tightly arranged specialized smooth muscle cells (epitheloid cells).
(5) Endothelial cells in helicine arteries react on unspecific alkaline phosphatase, while the endothelium of deep arteries and of the cavernous spaces does not.
(6) Polsters protruding into the lumen of the distal helicine arteries regulate blood flow into the cavernous spaces.
(7) In our experience the injection of papaverine during the test has provided a better visualization of cavernous arteries and helicine branches.
(8) Among 34 plant phenolic compounds tested, arbutin, phenyl-beta-D-glucopyranoside, and salicin were shown to be strong inducers of syrB, giving rise to approximately 1,200 U of beta-galactosidase activity at 100 microM; esculin and helicin were moderate inducers, with about 250 to 400 U of beta-galactosidase activity at 100 microM.
(9) It is considered that, when the valve of the helicine artery opens, blood flows into the cavernous sinuses, expanding them, and as a result the outflowing vein is compressed between the sinuses and the albuginea, or the albuginea itself, acting like a valve and therefore assuming an important function in maintaining erection by disturbing the reflux of blood flow.
(10) The effect of the aromatic aldehydes benzaldehyde and salicylaldehyde, the glucose-acetal derivative 4,6-benzylidene-D-glucose (BG) and the glucoside salicylaldehyde-beta-D-glucoside (helicin) on cell inactivation induced by cis-dichlorodiammineplatinum (cis-DDP) was investigated using cultured human NHIK 3025 cells.
(11) While helicin retains the aldehyde moiety of salicylaldehyde, BG does not possess any free aldehyde group.
(12) The addition of histamine dihydrochloride to the perfusion solutions shows a slight vasodilator effect mainly on the subcapsular penicillar arterioles, including the helicine arterioles.
(13) Blood may also be redirected from anastomoses between the dorsal arteries and corpus spongiosum through other helicine arterioles supplying the sinusoids of the corpus cavernosum.
(14) The neural control of smooth muscle cells in the corpus spongiosum, helicine artery and bulbus glandis of the dog was investigated in relation to the mechanism involved in erection, using isometric tension recording and micro-electrode methods.
(15) It is suggested that the helicine arteries open during tumescence, thereby diverting blood from the shunt vessels into the dilating sinuses, and that the rising intracavernosal pressure eventually occludes the shunt vessels.
(16) The epithelioid cells constituting the media of the helicine branches of the deep artery vary in their fine structure from close resemblance to muscle cells, to cells with easily identified special features.
(17) The neural mechanism involved in erection is discussed in relation to the topical difference in the autonomic innervation patterns in the corpus spongiosum, helicine artery and bulbus glandis.
(18) The mesenchymal cells are also associated with the helicine arterial sprouts at this time period.
(19) Only the helicine arteries which drained into the cavernous sinuses displayed subendothelial cushions.
(20) Helicine arteries of the crura, but not the parent deep penile artery or arteries elsewhere, have muscular cushions in their walls.
Oxidation
Definition:
(n.) The act or process of oxidizing, or the state or result of being oxidized.
Example Sentences:
(1) Compound Z has the properties expected of an oxidized MPT precursor.
(2) PMNs could be primed for PMA-triggered oxidative burst by muramyl peptide molecules (MDP) and two of its adjuvant active nonpyrogenic derivatives.
(3) Arterial oxyhaemoglobin saturation (SaO2) was monitored continuously during normal labour in 33 healthy parturients receiving pethidine and nitrous oxide for analgesia.
(4) The stopped-flow technique was used to measure the rate constants for the reactions between the oxidized forms of peroxidase with luminol and the following substrates: p-iodophenol, p-bromophenol, p-clorophenol, o-iodophenol, m-iodophenol, luciferin, and 2-iodo-6-hydroxybenzothiazole.
(5) The results show that in TMO-treated animals the time to the onset of convulsions, the time to the onset of NADH oxidation-reduction cycles, and the survival time were significantly longer than in the control group.
(6) Nitrous oxide, 60% (P less than 0.025) and 80% (P less than 0.02), caused significant increases in release of beta-endorphin.
(7) Uptake could be supported either by substrate oxidation or by adenosine 5'-triphosphate (ATP), and was inhibited in the former case by antimycin or cyanide, in the latter case by oligomycin, and in both cases by 2,4-dinitrophenol.
(8) Peripheral blood monocytes undergo an oxidative burst similar to that seen in neutrophils.
(9) Direct limiting effects of hypothermia on tissue O2 delivery and muscle oxidative metabolism as well as vasoconstriction and arteriovenous shunting associated with CPB procedures are likely to be involved in the above mentioned alterations of cell metabolism.
(10) EDRF is even more labile than prostacyclin, with a half-life of about 6 seconds, and it has recently been identified as nitric oxide.
(11) Both SAA and non-SAA enhanced ammonium excretion but only non-SAA enhanced organic anion excretion, an indicator of incomplete oxidation of organic acids.
(12) Despite the nearly anaerobic state of the ascites tumor fluid in vivo, cancer cells suspended in this fluid oxidized FFA at least as fast as they do in vitro under aerobic conditions.
(13) Steroid-treated steers showed a slight decline in synthesis which was significant (P less than 0.05) at week +5 post-implant while amino acid oxidation was significantly lower at weeks +2 (P less than 0.01) and +5 (P less than 0.05) compared with control animals.
(14) In the present work, we measured the inactivation of methionine synthase and the concurrent homocysteine export rate of two murine and four human cell lines during nitrous oxide exposure.
(15) These series were prepared by oxidation of the new hydroquinone precursors.
(16) Rhesus monkey BAT mitochondria (BATM) possess an uncoupling protein that is characteristic of BAT as evidenced by the binding of [3H]GDP, the inhibition by GDP of the high Cl- permeability or rapid alpha-glycerol-3-phosphate oxidation.
(17) Anaesthesia was achieved by a mixture of oxygen, nitrous oxide and fluothane without use of muscle relaxants.
(18) Endothelium-dependent relaxations to acetylcholine and endothelium-independent relaxations to nitric oxide were observed in rings from both strains during contraction with endothelin.
(19) Rapid reaction studies show the formation of an intermediate which is common to both the oxidation and inactivation pathways.
(20) During the carcinogens metabolism compounds are assumed to be formed, those are able to affect oxidative phosphorylation without forming any stable link with the respiratory chain components.