back to resveratrol

1 cup of red wine is equivalent to 1 cup of boiled peanut in resveratrol content!

SIR2 genes is activated by resveratrol. This longevity gene has the capacity to extend the cell's survival by protecting the genes from extraneous injurious agents like free radicals and biological agents. Knowing that genetic apparatus is important being the ultimate regulator of cellular activity then it is clear how the cell can extend its life.

Longevity genes can be activated also by caloric restriction. But why restrict caloric intake when there is resveratrol?

Studies of David Sinclair has shown these findings.

http://www.hms.harvard.edu/dms/bbs/fac/sinclair.html

http://www.resveratrol.com/Life%20Extension.html
http://latimesblogs.latimes.com/booster_shots/2008/06/its-long-been-s.html

see the bacteria in yogurt

http://images.google.com/imgres?imgurl=http://www.bitelog.com/images-items/pfood-microscope-picture0000005_0009.jpg&imgrefurl=http://www.bitelog.com/yogurt&h=857&w=634&sz=84&hl=en&start=42&um=1&usg=__jho0Kg39HUH2CTi1ZbwD5F3gq4A=&tbnid=Razq8Xg9roZ45M:&tbnh=145&tbnw=107&prev=/images%3Fq%3Dmicroscope%2Bpicture%2Bbacteria%26start%3D40%26ndsp%3D20%26um%3D1%26hl%3Den%26rls%3DGFRC,GFRC:2006-51,GFRC:en%26sa%3DN

lec slides on gen pathology

please check on June posting

bone physio finals

congratualtions to Ms GLADYS CORREOS

3 pts shy from perfect score

BONE PHYSIO slides

check August posting for lecture slides

link to understanding bone formation and remodelling

http://www.merckmedicus.com/ppdocs/us/hcp/diseasemodules/osteoporosis/figures/path_fl4a.htm
http://depts.washington.edu/bonebio/ASBMRed/growth.html

midterm exam physiolab

please review last long quiz.

same principles and maybe some same questions but don't give me same wrong answer

lab long quiz result

1. Blasurca
2. Lim
3. Tiongko - most improved

athletes and types of muscle fiber

It is generally known that muscle fibers are grouped into 2 general category: slow-twitch and fast-twitch muscle fibers.

Slow muscle fibers fire more slowly than fast twitch fibers and can go for a long time before they fatigue. They are more efficient at using oxygen to generate more energy( ATP) for continuous, extended muscle contractions over a long time. Thus the kind of muscle fibers for endurance athlete.

Fast twitch fibers use anaerobic metabolism to create energy, they are much better at generating short bursts of strength or speed than slow muscles. However, they fatigue quite quickly. They are able to do this because they use anaerobic respiration.

The difference in color of these types of muscle fiber was initially noted by Ranvier wayback 1873. And this has to do with the red-pigmented cytochrome complexes and myglobin content of the muscle fibers. Thus with more mitochondria, the red colored muscle is more physiologically equipped with the demands for continuous aerobic respiration which is the characteristic of slow fibers.

So, are the athelets genetically determined to be a sprinter or a marathoner? Then what is the relevance of training ? Can an endurance athlete be trained to attain more slow fibers than fast fibers?

http://www.coachr.org/fiber.htm

http://sportsmedicine.about.com/od/anatomyandphysiology/a/MuscleFiberType.htm

http://home.hia.no/~stephens/fibtype.htm

Coffee and the heart - friend or foe?

A new study conducted on Swedish women has found that drinking coffee might not increase the risk of having a heart attack. On the contrary, it might actually be protective for the heart.

The truth of the matter is that reports regarding this relationship of coffee and heart are mixed and conflicting.

Some would say that occasional drinkers are the ones at high risk of heart attack.

http://www.heartzine.com/512-Coffee-Does-Not-Add-to-Heart-Attack-Risk.html

http://www.heartzine.com/411-Occasional-Coffee-Can-Cause-Heart-Attack.html

FURIOUS FIVE

after 7 quizes in physio, here are the FURIOUS FIVE
1. Ngo
2. Nicolasora
3. Ogacion
4. Gaitano
5. Lim

diffusion

principle of diffusion

Diffusion - the process by which molecules spread from areas of high concentratiion, to areas of low concentration.

When the molecules are even throughout a space - it is called EQUILIBRIUM

Concentration gradient - a difference between concentrations in a space.

How molecules distribute itself in microcirculation. Transfer of substances in three compartments: intracellualry and extracellularly( interstitial and intravascularly).

http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_diffusion_works.html

http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_osmosis_works.html

what creates the pressure? It is kinetic motion of of particles that exert the pressure as it collide against each other in a give compartment.

Watch and try answering some questions

http://www.chm.davidson.edu/ChemistryApplets/KineticMolecularTheory/Pressure.html

body tissue

Tissue is a group of cells that have similar structure and that function together as a unit. A nonliving material, called the intercellular matrix, fills the spaces between the cells. This may be abundant in some tissues and minimal in others. The intercellular matrix may contain special substances such as salts and fibers that are unique to a specific tissue and gives that tissue distinctive characteristics. There are four main tissue types in the body: epithelial, connective, muscle, and nervous. Each is designed for specific functions. Use the hyperlinks below to branch into a tissue type and learn more about the topic.
Epithelial Tissue
Connective Tissue
Muscle Tissue
Nervous Tissue