Latest Posters

Bayesian Parameter Estimation for Systems Biological Models of Dynamic Cellular Networks
Jarad Niemi, Lingchong You and Mike West,
Duke University

Dynamic cellular networks determine production of proteins in the cells in our body. The Rb-E2F network is a key example: it controls cell cycle, proliferation and degradation - a key network in almost all cancers. We develop statistical models of such single-cell processes - fine-time scale dynamic network models. Model estimation requires informative priors and custom Metropolis proposals.

DOCKING STUDIES OF A NEW HETEROCYCLIC METHYLTHIOMORPHOLIN PHENOLS DERIVATIVES AS ANTIHYPERTENSIVE DRUGS WITH ACE TARGET.CASE FESCDIPINE II
1V. Vázquez,1O. Vázquez, 1,2M.A.Balboa, 1A. Ma. Velázquez, 1V.H. Abrego, 1B.Camacho, 1L. Martínez, 1L.A. Torres, 1A. Ramírez, 1I.Martínez, 3R.López-Castañares, 1S.Díaz-Barriga, 4J. Bocanegra, 4Froylan Gómez-Laguna, 1F. Olvera, 1E.Angeles.,
1.Departamento de C. Químicas FESC, UNAM, 2.Facultad de C. Química UNACH, 3. Facultad de Química, UAEM, 4.Facultad de Medicina UNAM

As part of the Drug Design in Medicinal Chemistry Program of the UNAM, new methylthiomorpholinphenol compounds with cardiovascular effect, were studied. One of them, FESCDIPINE II, was an excellent antihypertensive drug, that has low toxicity and preliminary studies indicate that the Angiotensin-converting enzyme (ACE) system is the biological target of this compound.

3D-QSAR Common Feature Pharmacophore Model for Polyphenols as Potential Anti-Malarial Agents
Shruti Saxena, Amit K. Gupta & Mridula Saxena,
CDRI

3D QSAR studies have been carried out on a series of polyphenols for their antimalarial activity using CATALYST program. Hypothesis with three features namely hydrophobic (1), hydrogen bond donor (1) and hydrogen bond acceptor (1) was found to the best, which mapped well with the most active and least active compound of the test set. This model can be used to develop drugs for malarial chemotherapy.

SOME BIOLOGICAL PROPERTIES OF TRITERPENOID ACIDS
S.N. Morozkina, O.I. Antimonova, E.M. Eremenko*, A.G. Shavva,
Saint-Petersburg State University, *Institute of Cytology RAS

Ursolic and betulinic acids acids induce the processes of apoptosis. We tested the risk of osteoporosis induction under influence of triterpenoids, since they can interact with glucocorticoid receptors. In experiments on oviriectomized rats we found that acids do not show any negative influence on percentage of mineral components in the femur and have cholesterol-lowering action under experimental conditions.

THE OSTEOPROTECTIVE ACTION OF 6-OXA-8a-ANALOGUES OF STEROID ESTROGENS
A.G. Shavva, V.N. Belov, A.Yu. Solovyev, S.N. Morozkina,
Saint-Petersburg State University

We synthesized fourteen 6-oxa-8a-estrogens analogues and investigated osteoprotective and uterotropic actions. We demonstrated correlation: every modification in structure of 6-oxa-8-analogues leading to strong (>30%) reduction of uterotropic action induces slump of osteoprotective activity. This allows to make conclusion: main biotarget, responsible for appearance of osteoprotective action is a-estrogen receptor. We found steroid estrogen analogues with cholesterol-lowering properties without u