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Biomedical subjects

I Raw

Publications and source records attributed to I Raw.

51 records · Page 3Linked to original sources
PubMed1977

The integration of nutrition education in the basic biomedical sciences.

At the Center for Biomedical Education at the City University of New York, nutrition is integrated into the chemistry-biochemistry sequence of a six-year B.S.-M.D. program. Students perform an actual analysis of a sample of their own food, learning a number of basic techniques and concepts. At the same time they carry on experiments with rats on diets similar to those used by some people. Those activities are complemented by a dietary survey on themselves and other college students. The fundamentals of nutrition are taught as part of the biochemistry course, while the interpretation of the nutrition survey will be conducted in the course titled Health, Medicine and Society, in which students become acquainted with health problems in the community they will serve as general practitioners.

Biochemistry↗
PubMed1969

Some properties of cytochrome b5 from liver microsomes of man, monkey, pig and chicken.

1. Cytochrome b(5) was released from liver microsomes of man, monkey, pig and chicken by incubation with a crude lipase preparation. 2. By using DEAE-cellulose chromatography, ammonium sulphate fractionation, Sephadex-gel filtration and a final gradient elution on DEAE-Sephadex A-50, cytochromes b(5) were obtained from the four species studied, all possessing similar spectral properties. 3. Stokes radii of the cytochromes were measured by gel filtration. 4. N-Terminal amino acids for the different cytochromes were serine for man and monkey, alanine for pig and glycine for chicken. 5. Amino acid analyses of the cytochromes are presented. 6. Peptide ;fingerprint' patterns of tryptic digests of the different cytochromes are discussed and clearly show increasing similarity for more closely related species.

Amino Acids↗
PubMed1968

The effect of ribonuclease on rat-liver ribosomes.

1. Rat-liver ribosomes lose about 50% of their amino acid-incorporating activity when preincubated with ribonuclease. 2. This preincubation results also in loss of about 50% of the original protein content and 75% of the RNA. 3. Ribosomes sedimented by ultracentrifugation, after preincubation with ribonuclease, show negligible contamination by crystalline enzyme. 4. Washing of ribosomes treated with ribonuclease releases further protein, restoring the original RNA/protein ratio. 5. The washed particle is again capable of promoting amino acid incorporation. 6. Examination of ribosomes treated with ribonuclease in the analytical ultracentrifuge reveals destruction of ribosomes, disappearance of dimers and a decrease in the sedimentation coefficient of monomers. 7. Washed ribosomes consist of even smaller particles with a sedimentation coefficient 60s.

Amino Acids↗
PubMedDate not supplied

Preliminary report of the use on adults of a recombinant yeast-derived hepatitis B vaccine manufactured by Instituto Butantan.

Three 10 micrograms of the recombinant hepatitis B vaccine, manufactured by Instituto Butantan by original technology, were administered in an adult population, mean age 30 years old, following the 0, 1 and 6 months schedule immunization. The clinical trial was considered satisfactory in terms of immunogenicity (anti-HBs titers between 17.5-29500 IU/ l, seroconversion 95.3%) and reactogenicity (no incapacitating side effects).

Adult↗