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http://www.zendfile.com/3625298872?/2009_V0lum3_50_2-149-152.pdf

+ نوشته شده در دوشنبه هجدهم آبان 1388ساعت 15:12 توسط ابراهيم ميرزامحمدي |

NON-PROTEIN AMINO ACIDS IN MUSCLE AND BLOOD OF

MARINE AND FRESH WATER CRUSTACEA

BY MERRILL N. CAMIEN,* H. SARLET, G. DUCHBTEAU, AND M. FLORKIN

(From the Laboratoires de Biochimie, Institut LBon Fredericq, Universitb de Libge,

Likge, Belgium)

(Received for publication, August 1, 1951)

Muscle and other tissues of marine invertebrates are very dilute with

respect to inorganic ions, but are nevertheless in osmotic equilibrium with

the blood, in which ionic concentrations are nearly the same as in sea

water (1). It has been postulated, therefore, that these tissues contain

relatively high concentrations of small organic molecules (l), and it is of

...interest in this connection that considerable

ادامه مطلب

+ نوشته شده در چهارشنبه ششم آبان 1388ساعت 19:1 توسط ابراهيم ميرزامحمدي |

Nonprotein amino acids in edible lentil and garden pea seedlings

and lentil (Lens culinaris L.) contain high concentration of nonprotein amino

acids and trigonelline. Both seedlings grown in the laboratory or purchased in

a supermarket were studied by HPLC. Samples from both origins contained

trigonelline, á-aminoadipic acid, homoserine, â-(isoxazolin-5-on-2-yl)-

alanine (BIA), and ç-glutamyl-BIA. Garden pea seedlings also contained a

uracil-alanine derivative (isowillardiine) in substantial amount. Some of these

compounds such as BIA and á-aminoadipic acid have neurotoxic activity.

Keywords: Amino acids – Nonprotein amino acids – Trigonelline – Inherent

...toxicant – Leguminosae – Edible seedlings

ادامه مطلب

+ نوشته شده در چهارشنبه ششم آبان 1388ساعت 18:55 توسط ابراهيم ميرزامحمدي |

EFFECTS OF THE NON-PROTEIN AMINO ACIDS

. exp. Biol. (1978), 75. 123-132 123

Wih 3 figures

inted in Great Britain

EFFECTS OF THE NON-PROTEIN AMINO ACIDS

L-CANAVANINE AND L-CANALINE ON THE NERVOUS

SYSTEM OF THE MOTH MANDUCA SEXTA (L.)

BY ANN E. KAMMER

Division of Biology, Kansas State University, Manhattan, Kansas 66506

D. L. DAHLMAN

Department of Entomology, University of Kentucky, Lexington, KY 40506

AND GERALD A. ROSENTHAL

T. H. Morgan School of Biological Sciences, University of Kentucky,

Lexington, KY 40506

(Received 1 November 1977)

SUMMARY

Injection of L-canavanine, a naturally occurring arginine analogue, and of

its metabolic derivative, L-canaline, induced almost continuous motor

activity in adult tobacco hornworms, Manduca sexta (L.). Initially the moths

flew normally, but after a time interval that depended both on the amino

acid and on the dose (1-45/miol/g fresh weight) the moths became disorientated

and muscle activity was less patterned. Canaline produced its

initial effects 12-30 min after injection, whereas activity in response to

canavanine began after a delay of i-z h. Canaline (derived from canavanine

by an arginase-mediated hydrolytic cleavage) is probably the biologically

active factor.

Canaline did not affect axonal conduction of action potentials nor the

activity of mechanoreceptors on the forewing. Canaline (22/miol/g fresh

weight) prolonged the postsynaptic potential of flight muscle fibres, but

after 20-40 min. the electrical activity of muscle fibres was normal

ادامه مطلب

+ نوشته شده در چهارشنبه ششم آبان 1388ساعت 18:35 توسط ابراهيم ميرزامحمدي |

Thomas E. Cole

Our research interests are in the exploration and development of organometallic chemistry of the transmetallation of organic groups between metals and boron compounds. This research program is composed of two major projects: the migration of organic groups from organoboranes to metals, giving rise to new organometallic complexes based in part on groups formed using boranes and the transfer of organic groups from metals to boron, yielding new unavailable organoboranes. These projects show exceptional promise in advancing synthetic organic methodology combining the attributes of metals ...

ادامه مطلب

+ نوشته شده در دوشنبه سی و یکم تیر 1387ساعت 11:25 توسط ابراهيم ميرزامحمدي |

Professor Alborzi Clinical Microbiology Research Center (PACMRC)
Director : Dr. Abdolvahab Alborzi

Organization : Shiraz University of Medical Sciences
Established : 1992
Registered by the Iranian Government : 1995
Registered by the World Health Organization (W.H.O.) : 1997
Registered as the Iranian National Research Laboratory Network : 1999
Registered as one of the Academic Research Pivots in Iran ( Southern Pivot) : 2001

PACMRC consists of four research departments including Bacteriology, Virology, Parasitology and Mycology.

The major research potential in our research center is mostly based on new and traditional aspects for identifying Microorganisms such as molecular (PCR,RT-PCR), cellular aspects and serological methods (IFA,FTA,Western Blotting) and traditional bacteriology and Bactec System.

Our research Laboratory Center Budget is supported by the Iranian
Government Budget and Programming Organization (IGBPO).

In the year 2000, Dr. Christopher Nelson, a representative of W.H.O., visited our research facilities. His report stated that our facility is the best research center in the Middle East.
PACMRC research which was done in the last decade, was mostly on Meningitis (Viral and Bacterial), Tuberculosis, Brucellosis, Antibiotic Resistancy especially Methicillin Resistant Staphylococcus
aureus,Viral hepatitis A, B, and C, Enteroviruses, Herpesviruses, Cytomegloviruses, Polioviruses, Polyomaviruses,Leishmaniasis (Cutaneous and Visceral type), Fungal Diseases and Herbal medicine.
Our research center has been approved as an Academic Pivot for Meningitis in Iran. In addition, our center was selected as the best research center at the Razi Research Festival in 2002.

+ نوشته شده در دوشنبه سی و یکم تیر 1387ساعت 11:1 توسط ابراهيم ميرزامحمدي |