Isolation and FTIR-ATR and H NMR Characterization of Alginates from the Main Alginophyte Species of the Atlantic Coast of Morocco.

Alginates are widely used as gelling agents in textile print pastes, medical industries, impression material in dentistry, and anticoagulant material in toothpaste. In the present study, the content and spectroscopic characterization (H NMR and FT-IR) of the sodium alginates were investigated in the eight brown seaweeds , f. , , , , , , and harvested from the NW Atlantic coast of Morocco.

Genetic diversity of Mycobacterium tuberculosis strains isolated in Algeria: Results of spoligotyping.

Objective/background: Molecular typing tools, including spoligotyping, are currently widely used in the monitoring and study of the dynamics of tuberculosis epidemics.

Methods: A study of the molecular profile of a sample of 129 Myobacterium tuberculosis strains isolated during 2011 was carried out in the National Reference Laboratory for Tuberculosis and Mycobacteria at the Pasteur Institute of Algeria. This sample was selected at random from a set of 350 strains isolated from tuberculosis patients from central and eastern areas of the country.

Comparison of two methods (left carotid artery and abdominal aorta) for surgical implantation of radiotelemetry devices in CD-1 mice.

The goal of this study was to compare two surgical methods, the left carotid (LC) and the abdominal aorta (AA), for mouse instrumentation with telemetry devices, to determine the best method for measuring cardiovascular (CV) parameters by radiotelemetry in freely moving mice. Surgery success rate, postsurgical recovery rate, clinical parameters, CV data (baseline and response to nicotine) and circadian rhythm measurements were compared between these techniques. Brains of LC-implanted mice were evaluated for potential ischaemia by direct observation of the Circle of Willis anatomy and histopathology.

Effect of conventional controlled-rate freezing and vitrification on morphology and metabolism of bovine blastocysts produced in vitro.

This study compares the effects of conventional controlled-rate freezing and vitrification on the morphology and metabolism of in vitro-produced bovine blastocysts. Day 7 expanded blastocysts cultured in synthetic oviduct fluid with 5% fetal calf serum were frozen in 1.36 M glycerol, 0.

Characterization of embryos derived from calf oocytes: kinetics of cleavage, cell allocation to inner cell mass, and trophectoderm and lipid metabolism.

Embryos derived from calf oocytes were compared with adult cow oocyte-derived embryos (1) by studying the kinetics of embryo development using time-lapse cinematography (2) by evaluating the ratio between inner cell mass (ICM) and trophectoderm (TE) cells in blastocysts (3) by measuring the triglyceride content of the blastocysts. The rate of calf oocyte-derived embryos reaching the blastocyst stage was reduced (26 vs. 46% for adult derived embryos).