Effect of Ca (II) ion on the in vitro availability and protein binding of Amlodipine besylate

2013 ◽  
Vol 7 (8) ◽  
pp. 671-676
Author(s):  
Marzina Ajrin ◽  
Newton Sen ◽  
Irfan Newaz Khan ◽  
Maria Islam Khan
Keyword(s):  
Protein Binding ◽  
Amlodipine Besylate ◽  
In Vitro Availability

EVALUATION OF TISSUE STEROID BINDING IN VITRO

1971 ◽  
Vol 68 (1_Suppl) ◽  
pp. S223-S246 ◽  
Author(s):  
C. R. Wira ◽  
H. Rochefort ◽  
E. E. Baulieu
Keyword(s):  
Protein Binding ◽  
Binding Sites ◽  
Experimental System ◽  
Specific Protein ◽  
Coupling Mechanism ◽  
Target Tissue ◽  
Protein Binding Sites ◽  
Definition Of ◽  
Hormone Specificity

ABSTRACT The definition of a RECEPTOR* in terms of a receptive site, an executive site and a coupling mechanism, is followed by a general consideration of four binding criteria, which include hormone specificity, tissue specificity, high affinity and saturation, essential for distinguishing between specific and nonspecific binding. Experimental approaches are proposed for choosing an experimental system (either organized or soluble) and detecting the presence of protein binding sites. Techniques are then presented for evaluating the specific protein binding sites (receptors) in terms of the four criteria. This is followed by a brief consideration of how receptors may be located in cells and characterized when extracted. Finally various examples of oestrogen, androgen, progestagen, glucocorticoid and mineralocorticoid binding to their respective target tissues are presented, to illustrate how researchers have identified specific corticoid and mineralocorticoid binding in their respective target tissue receptors.

DEPENDENCE OF IN VITRO PROGESTERONE METABOLISM ON PROTEIN BINDING IN THE RAT UTERUS

1974 ◽  
Vol 77 (1_Suppl) ◽  
pp. S86
Author(s):  
D. Egert ◽  
W. Jonat ◽  
H. Maass
Keyword(s):  
Protein Binding ◽  
Rat Uterus ◽  
Progesterone Metabolism

Influence of certain adsorbents on the in vitro availability of lidocaine from some suppository bases

1999 ◽  
Vol 22 (2) ◽  
pp. 197-206 ◽  
Author(s):  
M. Abd El-Mohsen ◽  
K. Khaled ◽  
M. Fetouh ◽  
H. Ahmed
Keyword(s):  
In Vitro Availability

Pharmacokinetic Analysis of Tetramethylpyrazine Bis-Nitrone TN-2 in Rats and its Protein Binding In Vitro

2014 ◽  
Vol 11 (6) ◽  
pp. 770-777
Author(s):  
Yewei Sun ◽  
Kaiyi Liao ◽  
Sai Li ◽  
Zaijun Zhang ◽  
Pei Yu ◽  
...  
Keyword(s):  
Protein Binding ◽  
Pharmacokinetic Analysis

scholarly journals THE METABOLISM IN VITRO OF FLUORENE DERIVATIVES BY RAT LIVER: HYDROXYLATION AND PROTEIN BINDING

1956 ◽  
Vol 222 (1) ◽  
pp. 373-386
Author(s):  
Helmut R. Gutmann ◽  
John H. Peters ◽  
Jerome G. Burtle
Keyword(s):  
Protein Binding ◽  
Rat Liver

scholarly journals Transcription signals and protein binding sites for sericin gene transcription in vitro

1989 ◽  
Vol 264 (31) ◽  
pp. 18707-18713 ◽  
Author(s):  
K Matsuno ◽  
C C Hui ◽  
S Takiya ◽  
T Suzuki ◽  
K Ueno ◽  
...  
Keyword(s):  
Protein Binding ◽  
Gene Transcription ◽  
Binding Sites ◽  
Protein Binding Sites ◽  
Transcription In Vitro ◽  
Transcription Signals

Effect of Domestic Processing and Cooking Methods on Total, HCl Extractable Iron and in vitro availability of Iron in Spinach and Amaranth Leaves

2002 ◽  
Vol 16 (2) ◽  
pp. 113-120 ◽  
Author(s):  
S.K. Yadav ◽  
S. Sehgal
Keyword(s):  
Iron Content ◽  
Dry Weight ◽  
Total Iron ◽  
Cooking Methods ◽  
In Vitro Availability ◽  
Domestic Processing ◽  
Polyethylene Bags ◽  
And Storage ◽  
Extractable Iron

Spinach ( Spinacia oleracia) and amaranth ( Amaranthus tricolor) leaves were stored in polyethylene bags and without packing for 24 and 48 hours in a refrigerator at 5°C and 30°C in polyethylene bags. The fresh leaves were also dried (oven and sun), blanched (5, 10 and 15 min) and cooked in an open pan and a pressure cooker. The processed leaves were analysed for total iron, its availability and antinutrient content. The iron content of these leaves varied from 26.54 to 34.14 mg/l00g, dry weight and its HCl-extractability and in vitro availability were 62.11–67.18% and 3.03–3.97% of total respectively. Drying and storage had no significant effect on total iron content, Hel-extractability and availability ( in vitro), while blanching and cooking resulted in significant improvement of iron availability, and a significant reduction in oxalic acid content, while only blanching significantly reduced phytic acid and polyphenol contents. Thus cooking and blanching are good ways to improve HCl-extractability and in vitro availability of iron.

Influence of Age and Gender on the In Vitro Serum Protein Binding of Flecainide

1993 ◽  
Vol 28 (3) ◽  
pp. 259-264 ◽  
Author(s):  
R. Zordan ◽  
R. Padrini ◽  
V. Bernini ◽  
D. Piovan ◽  
M. Ferrari
Keyword(s):  
Protein Binding ◽  
Serum Protein ◽  
Serum Protein Binding ◽  
Age And Gender ◽  
And Gender

Inhibition of binding of gonadal steroids to serum binding proteins by non-esterified fatty acids: the influence of chain length and degree of unsaturation

1989 ◽  
Vol 120 (2) ◽  
pp. 175-179 ◽  
Author(s):  
C. Street ◽  
R. J. S. Howell ◽  
L. Perry ◽  
S. Al-Othman ◽  
T. Chard
Keyword(s):  
Fatty Acids ◽  
Protein Binding ◽  
Unsaturated Fatty Acids ◽  
Late Pregnancy ◽  
Sex Hormone Binding Globulin ◽  
Partial Purification ◽  
Normal Female ◽  
Esterified Fatty Acids ◽  
Vitro Binding

Abstract. The effect of non-esterified fatty acids (NEFA) on the in vitro binding of testosterone, 5-alpha dihydrotestosterone and estradiol E2 to sex hormone binding globulin (SHBG) was examined using pooled normal female serum, and SHBG and albumin fractions obtained from the partial purification of late pregnancy serum. A range of saturated and unsaturated fatty acids were examined for their effect on steroid-protein binding. In normal female serum, NEFA added at physiological concentrations disrupted steroid-protein binding. The shorter chain (C8–C12) saturated acids and the poly-unsaturated acids proved to be more effective inhibitors than the longer chain saturated or mono-unsaturated acids. The greatest inhibition was obtained with E2 whereas the binding of dihydrotestosterone was least affected. With partially purified SHBG, the same concentrations of NEFA were less effective at inhibiting the binding of dihydrotestosterone and testosterone but elicited the same effect with E2. The binding of steroids to albumin appeared to be unaffected by these concentrations of NEFA.

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