blood type research 2003 version
TRANSCRIPT
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Chapter I
Introduction
The way our body reacts with any stimulus is determined by the information
found in our genes. The information not only dictates the way our body structures
are arranged and formed but also how these structures will function. The genetic
code also provides how one individual will differ from another person but also how
different he will be from the other individual. The difference could be very minute or
very great but still many points of similarities place one person into a class of
organisms which they share these similarities.
Blood type is one characteristic which is determined by our genetic code. It
places one in a group of individuals of the same type and it distinguishes him fromother persons with different blood types. It may even affect how one will react to
certain stimulus from his environment.
According to Dr. Peter D Adamo blood types is one of the medically
recognized variations as such that of fingerprint patterns and DNA analysis used
today to find out causes and cure for diseases. He said that using blood types in this
context will bring the science of genetics one step further wherein we used the
information in our genes in our understanding of how one human being is unique
not only in his structures but in his responses to the demands posed on him by the
environment. In his book entitled Eat Right for Your Type he stressed the influence
of blood type in determining the resistance of a person to disease as well as his
susceptibility because it reflects the genetic information which dictates his
responses to the demands imposed by the environment. He stressed the foods most
suitable for each blood types: type O benefits most from high protein low
carbohydrate diet, type A from high carbohydrate low fat diet, type B from dairy
products and can tolerate variations of foodstuffs, and type AB can tolerate most
foods which are not suited for type A or B.
There are many methods of analyzing blood types, the most common is the
ABO system based on the antigen found in the surface of the red blood cells of an
individual. This system was introduced by Karl Landsteiner in 1900 after his
discovery of the two red blood cell antigens A and B with which he formulated the
Landsteiner Rule: that one has no antibody for his own antigens and that he
produces antibodies for antigens he does not have. This precludes that one
produces antibodies to protect himself from the many antigen he is exposed to and
not to his self-antigens. In this ABO system an individual belongs to the type A if he
has antigen A in his red blood cells. If he is type B he has antigen B. If he has both
antigen A & B then he is type AB and if does not have any antigen he is type O.
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The heritability of blood types was discovered in 1903 wherein genes
carrying information for the production of antigen A and B are found in chromosome
number 9. An allele of these genes is inherited from one parent. The alleles of
antigen A and B are co-dominant meaning anytime one inherits an A or B allele then
it will always be expressed. The discovery found that O gene is actually recessive
and must be inherited from both parents to be expressed. The gene O carriesinformation for the allele of the H-antigen which is the precursor for either antigen A
or B. The transmission of traits on blood types follows this pattern of inheritance:
1. AA parent can pass A gene only.
2. AO parent can pass A or O genes.
3. BB parent can pass B gene only.
4. BO parent can pass B or O genes only.
5. OO parents can pass O gene only.
6. AB can pass A or B genes only.
Since blood types are determined by an individuals genetic make up, the
process by which it was transferred from one generation to another is as old as man
itself. In the journey of man from creation, his development and changes towards a
modern organism involved many evolutionary changes designed on one particular
objective survival.
According to a documentary entitled The Journey of Adam featured both in
the National Geographic Channel and Discovery Channel human history started inAfrica about 40,000 B.C. The existence of the first humans was of isolation and
there is no stimulation for the production of protective mechanism. Their interaction
with the environment is limited to food gathering through hunting and day to day
survival. The only danger posed on them was being eaten by predator animals, both
large and small (worms and parasites). In this condition, anthropologist inferred that
the blood type predominantly was type O. The British National Blood Transfusion
Service stressed that type O mast have evolved first because all humans can
receive this type of blood without any reaction.
The theory that type O evolved first is even strengthened by an experiment
and research done by a group of researchers published in the journal of NatureBiotechnology in April 2007 that type A, B & AB can be converted to type O by using
a glycosidase enzyme from a certain bacteria to strip the red blood cells of the
antigen they carry.
As the number of humans grew, game for food became less abundant so the
early humans were forced to move around available space and began to discover
new foodstuffs. These evolving humans began to try eating available vegetations in
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addition to the dwindling supply of meat from animals around them. In response,
man evolved into a more domesticated existence and agriculture was born. This
was documented about 25,000 to 15,000 B.C. in Asia and the Middle East where
blood type A initially appeared. Although there were some evolutionary biologists
who theorized that type A might have evolved first followed by type O through the
deletion of a single nucleotide. Although this is consistent with the acceptedpatterns of early population movements and varying prevalent blood types in
different parts of the world, it is contradictory to earlier theory that type O evolved
first and which is more accepted by the scientific world.
As the journey of man continued, climate changed necessitating changes for
better survival the birth of type B blood documented to have developed between
10,000 and 15,000 B.C. in the heart of the Himalayas, India and Ural region of Asia.
These people have more balanced diet as compared to the first two human types.
As evolution endured, intermingling of cultures and tribes occurred, there
was amalgamation of the human characteristics, some of which made manstronger, some made him weaker. Anthropologist recorded the first appearance of
blood type AB about 1000 years A.D. among type A Caucasians and type B
Mongolians.
The evolution of blood types clearly showed the journey of man for survival.
His genes dictated the best way to respond to the ever changing world where he
lives. Many anthropologists believed that man his marker, his blood type
influences his functions, responses and ultimate distinction from the rest of the
living system but also to other human beings.
The usefulness of blood type analysis were then limited to the determinationof what type is appropriate for transfusion in cases where blood and blood products
are needed in the treatment of a particular illness until Del Nagro in 1998 in his
theory of Light and Dark based on his research where he found that some viruses
that infect human cell in the lungs and mucosal epithelium take along ABO blood
antigens from there then cause mutations and carry these changes to the second
recipients of the viruses to elicit a host response against non-self antigens. He
further theorized that there is communal immunity and that individuals in a
population make up the diversity of unique antigen moieties which keep the
population as a whole resistant to infections.
In the search for cure of many diseases it has been found out that certaindiseases are more common in a particular blood type than other types. Although no
conclusive evidence has been written, blood type influence on a persons reaction
to illness remains a frontier still to be discovered. This study explores the possibility
that blood type influences the food preferences of an individual which makes one
susceptible to a particular disease process.
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Research Problems
What is the distribution of ABO blood types among the employees of the
University of La Salette? What are the food preferences of the employees of the
University of La Salette? What are the prevailing diseases among the employees?
What is the relationship between the blood type of the employees, their foodpreferences and the prevailing diseases among them?
Research Objectives
1. To find out the distribution of the ABO blood types among the employees
of the University of La Salette.
2. To find out the food preferences of the employees.
3. To identify the prevailing diseases among the employees.
4. To find out the relationship between the blood type, the food preferences
and prevailing diseases.
Framework of Analysis
The study will use the concept of input-process-output system using the
profiles of the respondents, their blood types, food preferences and their personal
history of diseases and illness as well as in their family as the input. The process will
involve the analysis of the profile of the respondents, analysis of their blood types,
food preferences and their disease history and their family and the assessment of
the relationships of the three variables. The output will be the relationship of the
three variables with one another as to the influence of blood types with the food
preferences and the prevalence of a particular disease in the employees and their
families.
Relevance of the Study
This study seeks to stress the role of blood type in the determination of food
preference of an individual which will eventually influence his susceptibility to
certain diseases as found out in many foreign researches. This study will beconducted to find out if the results among foreign respondents are the same among
Filipinos wherein no parallel studies were done yet.
The results of the study will help the researcher in her practice of giving diet
recommendations to her patients which is a great part of treatment of patients.
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This will also help the University in determining the probable diseases that its
employees will suffer and thus will pave the way for better provisions of health
benefits.
The employees will also benefit from the results because it will give them
better insights of how to take care of their health and to give them better ideas ofpreventing diseases running in their families.
Scope and Limitations
This study focuses on the blood types, food preferences and prevalence of
diseases among the employees of the University of La Salette. The unit of analysis
for this study is at the University level. The variables will then be applied to the
bona fide employees thus an institutional study.
The applicability of the study is limited to the university thus any conclusionthat is drawn from this study may not hold true to other communities.
Hypotheses
The main assumption of this research is that blood type determines the food
preferences of an individual thus will determine the susceptibility of the person to
certain diseases.
In line with this, the hypotheses of this research are: 1.) blood type O are
usually carnivorous but are more resistant to cardiovascular diseases; 2.) blood type
A are usually vegetarians but are more susceptible to cardiovascular diseases; 3.)
blood type B are usually of varied diets and more resilient to cardiovascular
diseases than type O; 4.) blood AB are usually tolerant to newer diet regimens but
exhibit extreme responses to diseases either very resistant or very susceptible.
Definition of Terms
Allele forms of a single gene that control the same inherited trait located in the
same site in a homologous chromosome
Anthropologist a person studying man both as an animal and living in a society,
his origins, development, distribution, social habits and culture.
Antigen substances or materials not synthesized by the body thus are considered
non-self; these substances usually stimulate the production of antibody which has
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the ability to destroy the particular substance which leads to its production
(Microbiology for Health Sciences by G. Burton, Lippincot Williams & Wilkins, 2004).
Carnivorous individuals
Caucasians a race of white skinned people with prehistorical origin in regions
between the Black sea and the Caspian sea.
Chromosome a structure found in the nucleus of a cell containing deoxyribonucleic
acid or genetic material of a living organisms which often is duplicated and passed
through the offspring.
Diet the food or drink normally taken in a prescribed course of what is to be eaten
or not (Grolier Dictionary, 1992).
Dominant it is an allele which carries a trait which is always expressed whether in
a diploid or haploid number.
Evolution the gradual continuous changes from simple to complex forms in
response to environmental conditions by natural selections of randomly occurring
mutations (Grolier Encylopedia, 1997).
Gene a particular segment of the DNA molecule containing specific information
that codes for the production of certain protein responsible for a particular function
in the body (Microbiology for Health Sciences, 7th Edition, Lippincott, 2004).
Genotype the genetic make up of an organism which depends on the DNA
sequence of its genes (Principles of Anatomy & Physiology by Tortora, 10 th Edition,
John Wiley & Sons, 2003).
Heritability capacity to transfer a trait to the offspring
Immunity the freedom from any liability usually an illness (Websters Dictionary,
2000).
Immunoglobulin antibody; proteins produced by the immune systems to destroy
antigens.
Phenotype the observable expression of a genetic trait influenced by the
environment on its degree of expression.
Preference liking; first choice; favoring (Rogets Thesaurus)
Prevalence the number of cases of a disease existing in a given population during
a specific period or time (Microbiology for Health Sciences by G. Burton, 2004).
Susceptibility the lack of resistance to the damaging effects of an agent (Principles
of Anatomy & Physiology by Tortora, 2003).
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Tolerance ability to endure, withstand certain imposition or demand
Vegetarians individuals who prefer plant foods or foods derived from plant source
Chapter II
REVIEW OF RELATED LITERATURE
Dr. James DAdamo, a naturopathic physician in his book entitled One Mans
Food published in 1980 had condensed his observations of his patients who were
given certain dietary regimens for a particular disease that some improved, some
did poorly and some even worsened. He narrated that even though these patients
received the same type of treatment for the same disease, still there were
variations in the responses. He then tested his theory by testing the blood types of
his patients and made an individualized diet regimen based on observations ofindividualized reactions for each blood type. He was so surprised by the results that
his conviction that blood types influences a persons susceptibility to the disease
and body mechanisms for recovery.
The book published in 1997 Eat Right for Your Type by Dr. Peter J. DAdamo,
the son of Dr. James DAdamo discussed how he followed the research and study of
his fathers pursuit of the influence of blood types on disease. He went on to search
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for the scientific basis of his fathers observations. And this time, more conclusive
evidences were found no t only by the author but other researchers as well when
more diseases were found to be correlated with certain blood types.
In an article published in the British Medical Journal in 1954 about the
relationships of stomach cancer with the ABO groups by J.E. Aird found thatstomach cancer was linked to low levels of stomach acid production which was
more common among type A individuals. This study also found out that Pernicious
Anemia is also more common among type A individuals, a condition which
predispose a person to insufficient acid secretion since this anemia requires vitamin
B12 for absorption and this vitamin needs sufficient acid secretions in the stomach
for its absorption in the gastrointestinal tract.
In 1976, R.J.Garrison, R.J.Havlik, R.B.Harris et.al. made a study on ABO blood
groups and cardiovascular diseases which showed that there is significant
association between blood types with type O having the lowest rates of claudication
of arteries. Serum cholesterol was slightly higher among non-type O blood types.The study was published in November-December issue of Atherosclerosis.
A Russian article published in 1979 about an analysis of the distribution of
ABO system blood groups among patients with spinal osteochondrosis syndromes
showing regular influence of the genotype on the development of spinal
osteochondrosis and determines the mechanism of the immune response to this
disease with type O demonstrating the least frequency and type A with the highest
frequency of the disease. The study was done by M.S. Ritner, I.R.Shmidt et.al.
The relationship between the erythrocytic antigens of the ABO/Rh system and
cardiovascular pathology was studied by E.N.Meshalkin, G.N. Okuneva et.al. done inRussia and published in Kardiologiia in April 1981 and revealed that the prevalence
of type B gene and Rh+ phenotype is increased in patients with acquired heart
disease while type A Rh + showed more prevalent in patients with congenital,
acquired and ischemic heart disease.
Immunohistochemical study of blood group activities in the alimentary canal
in normal and pathologic conditions with reference to the nature of epithelial
mucopolysaccharides done by T.Oshima, H. Maeda, N.Tanaka & T. Nagano
published by the Department of Legal Medicine, Kanazawa University School of
Medicine, Japan in 1988 showed that the quantitative and qualitative changes in
blood group activities were closely associated with those of epithelialmucopolysaccharides and that ABO antigenic activities were located in the PAS
stainability of mucins and goblet cells of the alimentary canal.
The 1989 issue of the Folio of Parasitology published the research of H.Kumar
& S.Santhanam on Blood Groups and Filariasis showing the results of that filarial
infection has no blood group predilection.
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P.Bouree & G. Bonnot studied the relationships of ABO/Rh blood groups and
HLA antigen with parasitic diseases and published the research in June 1989 in the
Journal of Egyptian Society of Parasitology and showed that there are more
hookworm infestations among the type O groups, giardiasis in type A, Enatmoeba
coli among type B with type AB the most resistant to parasitism.
An article published in the Europian Journal of Clinical Microbiology and
Infectious Diseases in August 1989 titled Relationship Between Infectious Disease
and Human Blood Type, the research done by S.A.Berger, N.A. Young & S.C. Edberg
found that anthropological surveys suggests that geographic and racial human
blood groups reflects susceptibility of populations with specific blood types to the
plague, cholera, smallpox, malaria and other infectious diseases.
A.M.Zemskov, V.G. Perederil et.a l. studied the relationships of immunological
reactivity to blood groups showed the different pathological reactivity dependent
upon blood group on the content of population of lymphocytes, immunoglobulins
and grade of immunodeficiencies. This study was published in April 1990 in VrachDelo.
In June 1991, an article about oral contraceptives and antithrombin III:
variations by dosage and ABO blood group was published in the American Journal of
Obstetrics-Gynecology showing that there is larger decline in antithrombin III in type
O women using the highest dose estrogen preparation and for women who are non-
type O using the lowest progestin preparations.
An article published in the Journal of Egyptian Society of Parasitology in
December 1991 about the relationships of parasitic infection to blood groups in El
Minie Governorate, Egypt found that there is more giardia lambdia infestationamong type A and more E. coli cases among blood type B.
A research entitled Longitudinal Study of the Association between ABO
phenotype and total Serum Cholesterol Levels in a Japanese Cohort done by
F.L.Wong, K.Kodama, H.Sasaki et.al. published in the Genetics Epidemiology in 1992
found that type A maybe more predisposed to cardiovascular disease than other
blood types due to more elevated cholesterol levels as compared to other blood
types.
I.A.Akhund, I.A. Alvi et.al. of the Department of Physiology, Liaqat Medical
College in Jamshoro who studied the relationships of ABO blood groups withmyocardial infarction and angina pectoris published in October 2001 in their College
Journal found that there is direct relationships between blood group antigens and
coronary artery disease. The group stressed the existence of special genetic
makeup which influence the susceptibility of individuals to this kind of disease.
A study done by P. Suadicani, H.O.Hein & F. Gyntelberg of the
Epidemiological Research Unit, Clinic of Environmental and Occupational Medicine
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of Bispebejrg University Hospital, Copenhagen NV Denmark and published in
International Journal of London in June 2005 entitled Airborne Occupational
Exposure, ABO phenotype and risk of Obesity found that there were no significant
correlation between type O men and obesity but there is significant results in type
O men exposed long term to airborne pollutants to increased prevalence of obesity
especially those in asbestos, welding fumes and breath irritants.
A research done by A.I.Sharara, H.Abdul-Baki et.al. of the Department of
Internal Medicine, American University of Beirut Medical Center published in
November 2006 about the association of gastrointestinal disease phenotype with
ABO blood groups and Helicobacter pylori virulence-specific serotypes found that
there was higher prevalence of type A patients with gastric malignancy and
infection with cytotoxin associated gene A-positive strains of blood.
T.Abo, T.Kawamura et.al. of the Department of Immunology, Niagata
University School of Medicine, Niagata, Japan studied the relationship between
diseases accompanied by tissue destruction and granulocytes with surfaceadrenergic receptors in 2007 published in the Immunological Reviews found that
the key factor connecting to tissue destructions are determined by the antigenic
surface receptors found in the blood cells.
The relationship of Helicobacter pylori positivity with age, sex, and ABO/Rh
blood groups in patients with gastrointestinal complaints in Turkey, a research done
by T.Seyda, C. Deyra, A.Fuson & K.Meliha publisehed jn June 2007 at Ankara
Research and Training Hospital, Ankara, Turkey showed that there is no
relationships with infections of H. pylori to age, sex and ABO/Rh blood groups.
There were numerous studies and researches done showing the correlation ofthe ABO blood group system and a particular disease as well as the immunological
reactions. All of the studies reviewed were done by foreign authors. Results were
leaning towards the influence of blood groups on susceptibility of an individual to
disease.
Extensive search was done to find out any study done locally on the influence
or relationship of the ABO blood group with any variable such as disease
susceptibility, immunity or behavior but none has been found up to this point in
time.
Chapter III
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METHODOLOGY
Research Method
The descriptive normative method is used with the survey questionnaire asthe tool for data gathering. There are no other inclusion criteria except being
employee of the University.
The questionnaire was patterned from the survey questionnaire of Dr. Peter
DAdamo in his study of diet regimens designed for each blood type of his patients.
The questionnaire was modified to suit the present study.
Blood typing will be done through the University Diagnostic Laboratory and
recorded as part of the health record of the employee.
The survey and blood typing will be done during one of the employeesgeneral assembly to ensure 100% participation and retrieval of the questionnaire.
To strengthen the data gathering for the research, a random unstructured
interview will be done at random among the employees to collect more information
concerning the three variables.
Data Analysis Plan
Data gathered will be treated and will be analyzed through the use of
frequency, percentage, z-test and the chi-square to determine the relationshipbetween the three variables.
Tables and graphs will be used to show more clearly the relationships of the
variables being studied. This will also show comparison between the four blood
types and their relationship to the other two variables of food preferences and
diseases.