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Evaluation of Inhibitory Effects of Spice-Derived Natural Extracts on Histidine Decarboxylase
histidine decarboxylase histamine inhibition spice
2009/8/18
This study examines the inhibitory activity of spice extracts on histidine decarboxylase which synthesizes histamine, a bioactive amine participating in gastrointestinal ulcer and allergy ailments. It...
The Intercellular Distribution of Glycine Decarboxylase in Leaves of Cassava in Relation to the Photosynthetic Mode and Leaf Anatomy
Cassava Glycine decarboxylase Hypostomatous leaf Immunogold localization Photorespiration Photosynthetic mode
2009/7/22
There have been conflicting reports on the photosynthetic mode of cassava (Manihot esculenta Crantz). It has been suggested that cassava is a C3-C4 intermediate plant and, alternatively, that it is a ...
Pyruvate Decarboxylase Activity Assay in situ of Different Industrial Yeast Strains
enzymatic activity in situ pyruvate decarboxylase yeasts
2009/6/24
Cytoplasmic pyruvate decarboxylase (PDC, EC 4.1.1.1) is one of the key enzymes of yeast fermentative metabolism. PDC is the first enzyme which, under anaerobic conditions, leads to decarboxylation of ...
Purification and Characterization of Glutamate Decarboxylase from Aspergillus oryzae
glutamate decarboxylase Aspergillus oryzae purification
2009/6/17
We purified glutamate decarboxylase (GAD) [EC4.1.1.15] from Aspergillus oryzae and characterized its biochemical and kinetic properties. GAD was purified by ammonium sulfate at 30–70% saturation and c...
Effect of helium and heliox on glutamate decarboxylase activity
helium heliox air glutamate decarboxylase
2009/3/30
The activity of glutamate decarboxylase (GAD) in pure helium at 6.8 MPa was significantly enhanced when compared to GAD activity in air at 0.1 MPa (906 vs. 602 nmol.h-1.mg-1 protein, respectively). No...
The changing profiles of L-ornithine decarboxylase and S-adenosyl-L-methionine decarboxylase activities in testicular cell types during sexual maturation of male rats
L-ornithine decarboxylase S-adenosyl-L-methionine testicular cell types
2009/2/23
To understand the involvement of polyamines in testicular maturation and spermatogenesis, the activity of two enzymes involved in the polyamine synthetic pathway, L-ornithine decarboxylase (ODC) a...
Inhibition of ornithine decarboxylase activity by follicle stimulating hormone in primary culture of rat Sertoli cells
ornithine decarboxylase follicle stimulating
2009/2/23
The effect of follicle stimulating hormone on the activity of ornithine decarboxylase (ODC) was determined in primary culture of rat Sertoli cells. Three different FSH preparations (NIH oFSH-S-15, S...
Regulation of testicular ornithine decarboxylase in vitro. Effect of age, follicle-stimulating hormone, and luteinizing hormone
rat testis omithine decarboxylase aging
2009/2/19
We have examined hormonal regulation of ornithine decarboxylase (ODC) activity in decapsulated rat testis, isolated testicular interstitial cells, and purified Leydig cells under defined conditions ...
In Vitro Gonadotropin Stimulation of Bovine Sertoli Cell Ornithine Decarboxylase Activity
ornithine decarboxylase Sertoli cell gonadotropins bovine calf
2009/2/19
The activity of ornithine decarboxylase (ODC) was determined in primary cultures of bovine Sertoli cells after gonadotropin stimulation in vitro. A significant increase in both ODC activity and putr...
Occurrence of DOPA/5-HTP Decarboxylase in Human Seminal Plasma：Kinetic Parameters and Demonstration of a Naturally Occurring Inhibitor of the Enzyme
DOPA/5-HTP decarboxylase human seminal plasma biogenic amines
2009/2/18
The authors found that DOPA/5-HTP decarboxylase was present in the human seminal plasma and that its activity was lower in fertile men than in infertile men. The Km and Vmax of the enzyme were, re...
Androgen regulation of the human ornithine decarboxylase promoter in prostate cancer cells
Androgen receptor gene regulation
2009/2/17
We studied the response of the human ornithine decarboxylase (ODC) promoter to androgen in human prostate cancer cell lines. In the well-differentiated, androgen-sensitive human prostate cancer li...
S-adenosyl-L-methionine decarboxylase activity in the rat epididymis：ontogeny and androgenic control
S-adenosyl-L-methionine androgen flutamide
2009/2/7
The authors describe the occurrence of high levels of S-adenosyl-L-methionine decarboxylase (SAMDC) activity in the rat epididymis, and its ontogeny and androgenic control. As early as 15 days of ag...
Differential effects of FSH on the activities of S-adenosyl-L-methionine decarboxylase and ornithine decarboxylase in Rat sertoli cells
Sertoli cells ODC AdoMetDC FSH
2009/2/6
Follicle stimulating hormone (FSH) modulates testicular function via Sertoli cells. The effect of FSH on S-adenosyl-L-methionine decarboxylase (AdoMetDC) activity was investigated in cultured Sert...
Biphasic Effect of Androgens on Prostate Cancer Cells and Its Correlation With Androgen Receptor Coactivator Dopa Decarboxylase
Neuroendocrine differentiation methyltoenolone cDNA microarray
2008/12/24
The aim of this study was to explore the mechanism underlying the dual effect of androgen on prostate cancer cells and further explore its correlation with dopa decarboxylase (DDC), an androgen r...
Prolonged Histamine Deficiency in Histidine Decarboxylase Gene Knockout Mice Affects Leydig Cell Function
Steroidogenesis human choriogonadotropin
2008/12/24
The present study focuses on histaminergic regulation of Leydig cell physiology, since limited information is available so far. To evaluate the dependency of Leydig cells on histamine (HA), we pe...