Results 221 to 230 of about 9,958 (250)

Different Strategies for Hyperactivation of Lipase Biocatalysts

2012
One important parameter for the application of lipase catalysts in chemical industries is the specific activity displayed towards natural or unnatural substrates. Different strategies to enhance the lipase activity have been described. The immobilization of lipases on hydrophobic supports by interfacial adsorption at low ionic strength permitted the ...
Jose M, Palomo, Jose M, Guisan
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Hyperactivation of succinate dehydrogenase in lymphocytes of newborn rats

Biochemistry (Moscow), 2008
We measured the activity of mitochondrial succinate dehydrogenase (SDH) within cells, in media with near-physiological composition, in lymphocytes immobilized in a blood smear on glass. SDH activity was studied in newborn rats characterized by natural hyperadrenergic status and also in adult animals injected with epinephrine. In most newborns very high
N V, Khunderyakova, M V, Zakharchenko, A V, Zakharchenko, M N, Kondrashova   +3 more
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Enhanced fertility after heat-induced hyperactivation

Fertility and Sterility, 1998
To determine sperm hyperactivation, kinematic parameters, and fertilizing capacity after pretreating sperm at 40 degrees C for 4 hours.Prospective study involving pooled donor sperm that were colloid washed and incubated at either 23 degrees C (control) or 40 degrees C (heat-treated) for 4 hours as pretreatment.
P J, Chan, J U, Corselli, W C, Patton, J D, Jacobson, A, King   +4 more
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The Role of Calpain in Diabetes-Associated Platelet Hyperactivation

2010
Diabetes mellitus is a major risk factor for vascular diseases and is associated with accelerated atherosclerosis and a high rate of arterial thrombotic complications. A number of studies support the concept that platelets contribute to the pathogenesis and progression of the vascular complications of diabetes.
Voahanginirina, Randriamboavonjy, Ingrid, Fleming   +1 more
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Ultrasonic hyperactivation of cellulase immobilized on magnetic nanoparticles

Bioresource Technology, 2017
In the present work, effect of low power, low frequency ultrasound on cellulase immobilized magnetic nanoparticles (cellulase@MNPs) was studied. To gain maximum activity recovery in cellulase@MNPs various parameters viz. ratio of MNPs:cellulase, concentration of glutaraldehyde and cross-linking time were optimized.
Mayur Ramrao, Ladole, Jayesh Sevantilal, Mevada, Aniruddha Bhalchandra, Pandit   +2 more
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Hyperactivation of fibroplasia by the transferable sulphur in wound healing

Research in Experimental Medicine, 1974
Glutathione has important functions in the process leading to cell growth and division. The healing phenomena in the excissional skin lesions of guinea pigs are stimulated by the local treatment of thiourea. Its sulphur was physiologically incorporated in the soluble thiol groups interpreted as glutathione. The statistical average of tissue glutathione
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Consequences of Capacitation. III. Hyperactivation

1986
Hyperactivation (see Yanagimachi, 1981 for terminology) refers to the changed nature of sperm motility that occurs around the time of fertilisation both in-vivo and in-vitro, variously described as “bobbing” (Gwatkin and Anderson, 1969), “whiplash” (Yanagimachi, 1970b; Fraser, 1977; Katz and Yanagimachi, 1980) or “serpentine” (Yanagimachi.
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Hyperactivation of the alternative complement cascade in schizophrenia

Doklady Biochemistry and Biophysics, 2008
A S, Boyajyan, A G, Khoyetsyan, S S, Hakobyan, G V, Tsakanova, V A, Ayvazyan   +4 more
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Is the contralesional hemisphere hyperactivated in neglect?

2013
The dysfunction underlying neglect syndrome is traditionally explained on the basis of “rivalry models” which postulate a pathological hyperactivation of the unaffected hemisphere due to the reduced inhibitory influences from the lesioned hemisphere. The aim of the present study is to test these models analyzing the effect that repetitive Trancranial ...
SAVAZZI, Silvia, MELE, Sonia, Brignani D, Bagattini, Chiara   +3 more
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[Species specific motility patterns of hyperactivated mammalian spermatozoa and quantitative analysis of the hyperactivation of bull spermatozoa].

Andrologia, 1989
Movement tracks of spermatozoa of human, lion, tiger, cow, pig and sheep are recorded by dark field photography (fluid layer thickness 16.7 microns, exposure time 1 s). Comparison before and after capacitation by an incubation of 2 h in modified tissue culture medium TCM 199 with 10% fetal calf serum resulted in two quite different patterns of ...
S, Blottner, R, Bertram, C, Pitra
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