Paediatrics Oct 97
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Transcript Paediatrics Oct 97
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Primary Course in Nutritional & Environmental Medicine
Paediatrics
Paediatrics
Nutritional Status of Children
Behaviour & Learning Disorders
Lead
Autism
Children in general nutritional
practice
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Pediatrics 2005;115;736-743
www.pediatrics.org/cgi/content/
full/115/3/736
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Pediatrics 2005;115;736-743
37 studies of dairy or unsupplemented
dietary Ca intake
27 studies found no relationship between
dairy or dietary Ca intake and measures of
bone health
Remaining 9 studies : the effect on bone
health are small
3 studies were confounded by Vit D intake from
fortified milk
6 found positive relationships in some measures but
not others
1 found an effect of increasing dietary Ca intake on
BMD when habitual Ca intake was < 400 mg/day
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Pediatrics 2005;115;736-743
Physical activity
Primary modifiable stimulus for increased
bone growth
Calcium
Intake, turnover, absorption and excretion
rates determine the availability of Ca for bone
growth and development
Absorption is modulated by
food source
Form of Ca salt
Presence of phytates or oxalates
Vitamin D status
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Pediatrics 2005;115;736-743
Calcium
Urinary losses modified by
Potential renal acid load of the diet
Total dietary protein
Dietary sodium content
Dietary potassium content
Caffeine intake
Smoking
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Pediatrics 2005;115;736-743
Calcium supplements
9 of 10 RC trials ( 300-1000 mg daily )
1-6% increase in BMD
But effect is transient ( not more than 2
years )
Effect did not persist into late adolescence
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Pediatrics 2005;115;736-743
Adult reference
Weinsier RL, Krumdieck CL. Dairy foods
and bone health: examination of the
evidence. AmJClinNutr.2000;72:681-689
Metanalysis, 57 papers
…” body of evidence appears inadequate
to support recommendation for daily intake
of dairy foods to promote bone health in
the general US population”
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PEDIATRICS Vol. 107 No. 4 April 2001, p. e53
Hypovitaminosis D in Healthy Schoolchildren
Received Aug 2, 2000; accepted Nov 2, 2000.
Ghada El-Hajj Fuleihan*, Mona Nabulsi , Mahmoud Choucair*, Mariana Salamoun*, Carmen Hajj Shahine*, Aline Kizirian§, and Raja Tannous§
From the * Department of Internal Medicine, Endocrine Division, Calcium Metabolism and Osteoporosis Program; and the Departments of Pediatrics
and § Food Technology and Nutrition, American University of Beirut, Beirut, Lebanon.
Background. Vitamin D is essential for skeletal growth, but there are currently no guidelines for vitamin D supplementation after infancy. This study
investigates vitamin D insufficiency in healthy children.
Methods. Children ages 10 to 16 years from 3 private schools in Beirut, Lebanon, with differing socioeconomic status (SES) were studied: 169 in the
spring of 1999 and 177 in the following fall; 83 students participated in both study phases. They had a physical examination, answered a dietary
questionnaire, and blood was drawn for calciotropic hormones and indices of bone turnover.
Results. Overall, 52% of the students were vitamin D-insufficient; the proportion of insufficiency was 65% in the winter and 40% at the end of the
summer. During both seasons, girls had lower vitamin D levels than did boys; those who followed the dress code of covered head, arms, and legs
had the lowest levels. Students in the mid-SES school had lower 25-hydroxyvitamin D (25-OHD) levels than did the ones from the high-SES school.
After adjusting for confounders, gender, SES, and body mass index remained the significant predictors of vitamin D levels in both seasons
(R2 = 0.53, for spring and 0.28 for fall). There was a significant inverse correlation between 25-OHD levels and parathyroid hormone levels that was
best fitted by a curvilinear model (R2 = 0.19).
Conclusion. Even in a sunny country, hypovitaminosis D is common in
schoolchildren, more so in the winter. Girls, especially those with a lower SES, are at
particular risk. The inverse changes in parathyroid hormone suggest that insufficient
vitamin D levels may deleteriously affect skeletal metabolism in healthy
adolescents. Vitamin D insufficiency may be prevalent in many other countries
where supplementation of milk with vitamin D is not mandatory. Our results call to a
reconsideration of vitamin D supplementation in high-risk adolescents to further
optimize skeletal health. vitamin D insufficiency, bone metabolism, nutrition, gender,
socioeconomic status. .
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Fruit And Vegetable Intake
Study from the National Cancer Institute
Krebs-Smith et al.: Fruit and Vegetable Intake of
Children and Adolescents in the US: Arch Pediatr
Adolesc Med/Vol 150, Jan 1996
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Fruit And Vegetable Intake
“ Diets that are abundant in fruits and vegetables
are associated with a decreased risk of cancer
of the colon, breast, lung, oral cavity, larynx,
esophagus, stomach, bladder, cervix, and
pancreas”
“Childhood patterns are important determinants
of adult risk of certain diet-related cancers”
“The habit of eating lots of fruits and vegetables
beginning during childhood is a significant
positive predictor of fruit and vegetable intake
among adults”
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Fruit And Vegetable Intake
The study’s results were that
nearly 1/4 of all vegetables consumed
by children and adolescents were
french fries
intake of all fruits and dark green/or
deep yellow vegetables were very low
compared with recommendations
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Nutrition Intake
Prehistoric - Today
Dietl,H. Ohlenschlaeger,G
Handbuch der Orthomolekularen Medizin 94
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Prehi stor ic
Today
Protei n %
2 0 - 35
1 0 - 20
Carb ohy dra t es
%
Fat t %
4 0 - 50
4 0 - 50
20
40
poly / sat FA
1 .5
0 .4
Om e ga - 3 - FA
1 -1 .5 g
0 .1 -0 .2 g
Om - 6 / Om - 3
2 -4
10
Sugar g/ day
1 0 - 20
8 0 -1 0 0
Fru ct ose
5 -1 0
4 0 - 50
Chol mg / d
600
600
Vit amin C mg
400
80
Fib re g
45
20
Vit amins
high
low
So dium mg
700
3 00 0
Calciu m mg
1 50 0
700
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CV risk in children
Porkka KV, et al. The cardiovascular risk in young Finns
study. Atherosclerosis. 1994;105:63-69
Increased TFA’s increases risk for CV disease
Process starts in childhood
Changes in intima thickness and lumen
diameter, age 1 - 15
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Trans Fatty Acids
Decsi, et al. Ann Nutr Metab 39,36-41 (1995)
present in hydrogenated vegetable oils
4-6% was considered to be safe
but increase in LDL cholesterol
impairment of EFA metabolism
“LCP are essential for normal growth,
therefore inhibition of LCP synthesis in
childhood is of serious concern”
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Children and Nutrition
Pollitt E. Does breakfast make a difference in
school? J Am Diet Assoc. 1995;95:1134-1139
Nutritious breakfast may prevent nutrient
deficiencies
Omission of breakfast alters speed and
accuracy of information retrieval
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Children and Sugar
Wender EH, Solanto MV. Effects of sugar
on aggressive and inattentive behaviour
in children with ADD wit hyperactivity and
normal children. Pediatrics.
1991;88(5):960-966.
High sugar meal or placebo diet
more aggressive after sugar-richmeal
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Brain and Glucose
Energy for neuronal function
Neurotransmitter production and
secretion
Electro-physiological brain function
Simple COH have different effect on
neurochemistry than complex COH
White JW, Wolraich M. Effect of sugar on
behaviour and mental performance.
Am J Clin Nutr. 1995;62(suppl):242-249
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Xenobiotics and Behaviour
well known lead studies
others
Manganese, Aluminium, Cadmium
Oxidation in CNS and dopamine depletion
Development of brain free radical
scavenging system and lipid peroxidation
under the influence of gestational and
lactational cadmium exposure.
Human Exp Toxicol. 1995;14:428-433
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Oils ain’t oils
Pediatric dietary lipid guidelines: a policy
analysis. J Am Col Nutr.1995;14(5):411-418
Total dietary fat not a problem
Type of fat
Increase in Omega 3 FA’s
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Brain and EFA’s
CNS and retina of eye are rich in
n-3-FA’s partic. in DHA
precursor alpha-linolenic acid
breast milk has high concentration
formulas very low
Macrides M, Neumann et al. Fatty acid
composition of brain, retina and erythrocytes in
breast- and formula-fed infants.
Am J Clin Nutr. 1994;60:189-194
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Brain and EFA’s
n-3 FA’s
ALA, EPA and DHA
brain and visual development
balance immune and inflammatory reactions
balance effect of linoleic acid
corn, safflower, sunflower, soy oils
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Essential Fatty Acids
Overt
–
–
–
–
–
–
Signs of Deficiency
Dry Skin
Dry, lusterless, unmanageable or brittle hair
Dandruff
Dry, patchy skin
Brittle nails
excessive or firm cerumen
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EFA - Suspect Signs of Deficiency
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Cold Sensitivity
Allergies
Autoimmune Disease
Seborrhoeic Dermatitis
Psoriasis
Acne
Aging Spots or Vitiligo
Osteoarthritis
Arthralgias
Hypertension
Hyperlipidaemia
CV Disease
Endocrinopathies
Mental Disorders
Cancer
Diabetes
Alcohol Intolerance
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Vertigo
Migraine
Hiatal Hernia
Gastritis
Irritable Bowel
Peptic Ulcer
Diverticulosis
Ulcerative Colitis
Chronic Recurring Infections
Myalgias
Neuralgias
Tinnitus
PMS
Menopausal Symptoms
Bursitis
Glaucoma
– Prostatitis
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Behaviour, Learning
and Omega-3 FA’s
Stevens,Laura, et al.,
Physiology and Behavior, 1996;59(4-5):915-920
96 boys, age 6-12
inverse relationship b/w Omega-3
FA’s concentration and
behaviour, learning and health
problems
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Nutrient deficiency in low fat diet
Nicklas TA, Webber LS, et al. Nutrient adequacy
of low fat diets for children.
Bogalusa Heart Study. Pediatrics.1992;89:221-228
B6 Pyridoxine
B12 Cyanocobalamin
E tocopheroal
B1 Thiamine
B2 Riboflavin
B3 Niacin
8%
34 %
32 %
18 %
20 %
23 %
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lower
lower
lower
lower
lower
lower
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Nutrient Intake and Fatness
Moore et al. Am J Epidemiol 139 (11) S56(1994)
131 children (Framingham Children Study)
Saturated Fats and Sucrose were
strongest predictors of body fatness for
girls
Total Fat and COH strongest for boys
= nutrient composition more important
than total caloric intake
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Diet and IQ
Schoenthaler,S., Nature,July 25,1991;352:292
Discussion in Lancet
Double-blind placebo controlled
615 school children in 4 schools
RDA supplementation over 10 weeks
significant gain in non-verbal intelligence
803 schools = 1.1 Mio schoolschildren
Diet policies, only nutrient dense meals to be
served at school
16 % improvement in scholastic achievement
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Fruit Juice
Fruit Juice Consumption, Growth and Development
Nutrition Week, March 18, 1994;7
Study of 14-27 month old children with
20-30 ounces of juice = 25-60 % of daily
calories
When intake of fruit juice was reduced,
children had more caloric intake and
gained weight
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ADD
ATTENTION DEFICIT DISORDER
1. HYPERACTIVITY
( ADD with hyperactivity )
2. LEARNING DISABILITY
(ADD without hyperactivity )
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ADD with Hyperactivity
Signs of
inattention
impulsiveness
hyperactivity
inappropriate for mental and
chronological age
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ADD with Hyperactivity
Main discussion point in NEM:
food additives
food sensitivities
sugar
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ADD with Hyperactivity
Incidence:
3 - 20 %
boys : girls = 9 : 1
Onset :
~ 3 years
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ADD with Hyperactivity
Characteristics:
Hyperactivity
Perceptual motor impairment
General coordination deficit
Emotional lability
Disorders of attention
Impulsiveness
Disorders of memory and thinking
Specific learning disability
Disorders of speech and hearing
Equivocal neurological signs and
EEG irregularities
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Food Additives
up to 5000 are used
13 - 15 gms per day consumption
Feingold hypothesis:
40 - 50 % of hyperactive children are
sensitive to
food colours, flavours, preservatives
and naturally occuring salicylates &
phenolic compounds
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Feingold - Connor
Type of placebo
cookie
- chocolate
other studies show
33 - 59 % reactions to chocolate
Inadaequacy of challenge dose
study dose = 13 mg
compared to 150 mg (FDA data)
other studies ( 75, 100 and 150 mg ) =
significant impairment of learning performance
in 85 % of tested children
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Feingold - Connor
Supportive studies in AUS
Rowe et al : Artificial food colourings and hyperkinesis
Aust Paediatrics J 15:202, 1979
Rowe: Food additives.
Aust Paediatrics J 20:171-4, 1984
Cook,P: The Feingold dietary treatment of thehyperkinetic
syndrome. Med J Austr 2:85-90, 1976
Salzmann: Allergy testing, psychological assessment and
dietary treatment of the hyperkinetic child syndrome
Med J Austr 2:248-251, 1976
Weiss et al : Behavioural response to artificial food colours
Science 207:1487-9, 1980
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Food Sensitivities
Common:
Cow’s milk
Peanuts
Wheat
Orange
Chocolate
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Corn
Yeast
Soy
Tomatoes
Grapes
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Food Sensitivities
Testing
Elimination-challenge
IgE
IgG 4
Electro-dermal
Kinesiology
Cytotoxic
Alcat
Intestinal Permeability
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ADD and EFA’s
Stevens et al. Am J Clin Nutr 62 (4), 761-768 (1995)
53 boys with ADHD, 43 controls
significantly lower conc. of EFA’s
many symptoms of EFA deficiency
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Learning Disability
ADD - without hyperactivity
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Learning Disability
NUTRIENT DEFICIENCY
any nutrient deficiency can result in
impaired CNS function
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Iron Deficiency
Webb,TE. J.Spec.Education 1974
Pollet, AJClinNutr 1986
Behaviour, Learning Disability
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Learning Disabilities
HEAVY METALS
particularly lead
many studies. Lancet 1972 - until today
Recent studies in Sydney and NSW
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Learning Disability
BEHAVIOURAL
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OPTOMETRIST
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ADD and Literature
Weiss,G. NEJM, Nov 15,1990;323(20):1413-1414
“Hyperactivity in Childhood”
Editorial review regarding Zametkin’s article.
Study supports view of metabolic
dysfunction, but probably not single cause
Others are lead exposure, poverty and
stressful family
Stimulants have been used with some
success, but their widespread use and long
term efficiency is questionned.
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ADD and Lead
“ Lead Toxicity May Underlie Behavioral, Learning
Disorder”,Family Practice News,
Dec.15-31,1991;21(24):37.
D. Herbert Needleman,
Annual Meeting of the American Academy
of Child and Adolescent Psychiatry:
“Any child with behavioral disorder or
learning disability should be tested for
lead exposure immediately..”
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Lead
CDC in 1991 reduced action level
for lead poisoning from
25 ug/dl (set in 1975 ) to 10 ug/dl
Report: Preventing Lead Poisoning in
Your Children.
Office of Public Affairs, CDC, Atlanta,
Georgia 30333
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Lead
Beck, Barbara, Fundamental and Applied
Toxicology,1992;18:1-16
“Symposium Overview: An Update on Exposure
and Effects of Lead”
Neurobehavioral effects
Carcinogenicity
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More on Lead
Journal of th American College of Nutrition,
Oct1992;11(5):608/37
“Overview of Lead Toxicity Early in Life, Effects on
Intellect loss, Hypertension.
10% of all children have been exposed to
unsafe levels of lead
10-50% of children have increased lead levels
In 1978 lead levels in babies’ teeth were
correlated wit neurobehavioral function,
inversely related to lead dentine levels
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Lead cont’d - JACN Oct 1992
11 years later significant association with
lower class standing
absenteeism
lower verbal scores
poor coordination
longer reaction times
Epidemiological and clinical studies:
hypertension, kidney dysfunction
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Lead - Intelligence
Tong, Shilu, et al (Uni of New England,Armidale)
BMJ,1996;312:1569-75
375 children born close to a lead smelter
IQ inversely associated with antenatal
and postnatal blood lead concentration
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Lead Poisoning and Zinc
Could Zinc help Protect Children from Lead Poisoning?
Schmitt, Nicholas, Canadian Medical Association Journal,
January 1, 1996;154(1):13-14.
High intake of lead results in neurological
damage
Zinc is a known metabolic antagonist of lead
Zinc supplementation may be of benefit in
children with risk of lead poisoning
Children from low income family are deficient
in Zinc
Address Zinc deficiency and reduce lead
exposure
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Lead and Vitamin C
Dawson,E.et al, J of the Am Coll of Nut
1997;16(5):480/Abstract 42
75 adult males 20-35 years
0, 200, 1000 mg Vit C for 1 months
mean blood lead levels
Results
no change in 0 or 200 mg Vit C
in 1000 mg group
reduction from 38 to 8 ug/dl in 1 week
remained for the length of the study
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Lead levels and Behaviour
Needleman et al. JAMA 275(5), 363-369 (1995)
850 primary school aged boys
follow up over 4 years
lead exposure associated with
sleep disturbances
attention problems
aggression
delinquency
anxiety/depression
social problems
negative effects of lead follow a developmental curve
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AUTISM
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AUTISM
Syndrome of early childhood
male : female = 4 : 1
Profound failure to develop social
relationships
Language disorder with
impaired understanding
echolalia,pronominal reversal
Rituals and compulsive phenomena
General retardation in intellectual
development ( most cases )
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AUTISM
Organic defect in brain development
as a result of
abnormal SEROTONIN metabolism
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AUTISM
Prognosis:
generally poor
related to results of IQ testing
in children < 50, temporal lobe epilepsy
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AUTISM
Abnormal serotonin metabolites are
seen in autistic children
may significantly contribute to their
mental dysfunction
LSD and other hallucinogens are
serotonin analogues
Serotonin and its metabolites are
produced in and absorbed from
intestines ( ? leaky gut syndrome )
Recent study on secretin
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Autism
Amino Acid Metabolism
Fatty Acid Metabolism
Opiods from casein and gluten
Other toxic metabolites
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AUTISM and Rx
RECOMMENDATIONS ARE INCOMPLETE
Specialised services and counselling
Eliminate factors that play a role in
aggrevating
CNS dysfunction ( eg. food sensitivities )
Milk, wheat, sugar = 40 - 50 %
improvement
Amino acid and Fatty Acid assessment
Bowel detox
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AUTISM and Rx
Suggested supplementation
Ascorbate
B6
Folic acid
B 12
Mg
Omega 3 and 6
1g
50 mg
500 mcg
500 mcg
100 mg
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Milk and Tonsillitis
Hodson,A., The Journal of The Royal Society of
Medicine, Jan 1991;84:58
Milk allergy may be an etiological factor in tonsillitis
Few children in countries without milk
have ever tonsillitis
If substitution of milk powder in those
countries, significant increase in
tonsillitis eg. WHO in Lybia
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Acute Otitis Media & Antibiotics
Browning,G., BMJ April 14,1990;300:1005-1006
Review: Childhood Otalgia:Acute Otitis Media;
Antibiotics Not Necessary in Most Cases
Child with ear pain - less than 50%
chance of acute OM
After initial myringotomy - 20-30 % no
pus, no bacteria
No consistent data supporting antibiotic
use in serous OM
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OM & Antibiotics
(Browning)
85 %of children pain free after 24 hours
irrespective of Antibiotics
Evidence that AB’s reduce incidence of
mastoiditis is negligible
Recommendation:
Antibiotics only if otalgia persists for
longer than 24 hours
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OM & Antibiotics
(Browning)
If policy were instituted in UK:
1.84 Mio fewer prescriptions for antibiotics
Saving of 6 Mio pounds per year
In Scandinavian countries antibiotics are not
routinely given and parents do not expect
them
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Otitis Media
Food Allergies Can Trigger Ear Infection
Pediatric News, 1991;25(2)
78 % of children with chronic ear infection
were sensitive to different foods incl
milk, wheat, peanuts, corn
Elimination for 11 weeks - resolution in 88 %
Reintroduction of those foods - 66 % relapse
Suggested mechanism : Production of
mucous and swelling of Eustachian tubes
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Eustachian Tube Dysfunction
Derebery,M et al., Am J of Otology,1997;18:160-165
underlying inhalant and food allergy
most pt’s have at least 1 positive reaction
to food by provocation or skin testing
most have symptom improvement with
dietary elimination
wheat
milk
corn
egg
yeast
soy
70.7 %
51.5 %
60.9 %
51.7 %
55.9 %
45.5 %
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Milk allergy and Soy
J of Pediatrics 1999; 134:614-22
14 % of IgE cow’s milk allergic
children have IgE allergy to soy
“safe to introduce under medical
supervision”
“Soy remains unsuitable for children
with non-IgE-associated cow’s milk
allergy involving enterocolitis in
these non-atopic patients”
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Vitamin C & Antibiotics
“Vitamin C Enhances Antibiotic Therapy”
The Nutrition Report,April 1992;10(4):31
Staph aureus strains lost resistance in 4/6
strains after 6 hours
Antibiotic levels effectivity increase
by 50-75% after Vit C exposure
23-93% Vitamin C was bacteriocidal
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Vit C & Antibiotics
cont’d
Vitamin C may modify bacteria DNA
Vitamin C shows no mutagenic or
carcinogenic effects on normal cells
Vitamin C inhibits bacterial resistance to
Ab therapy
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Milk & Intestinal Permeability
Cows’ Milk Allergy, Sugar and Intestinal
Permeability
Troncone,R., Allergy 1994;49:142-146
90% of infants who developed symptoms
after challenge
showed increase post-challenge
intestinal permeability
4.5 % in non-reactors
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Food Allergy and Atopic Disease
Annals of Allergy December 1993, 71:495-502
less than 20 % are true allergy or hypersensitivity
food ‘allergy’ in at least 25 % of infants with
atopic eczema
intestinal permeability may increase risk of food
allergy
breast milk may reduce atopy
“research should move beyond the obsession
with IgE mediated type 1 reaction
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J Pediatr. 2004 Nov;145(5):606-11.
Lymphoid nodular hyperplasia and cow's milk hypersensitivity in children with chronic
constipation.
Turunen S, Karttunen TJ, Kokkonen J.
Department of Pediatrics, University Hospital Oulu, Finland.
OBJECTIVE: To investigate the incidence of cow's milk allergy as evidenced by milk
challenge and the findings of endoscopic and immunohistochemical examinations in
children with chronic and refractory constipation. STUDY DESIGN: Thirty-five study
subjects (mean age, 8.3 +/- 3.3 years; range, 3-15 years; 17 girls) and 15 control
subjects (mean age, 11.7 +/- 3.2 years; range, 2-15 years; 9 girls) were studied by
colonoscopy and a 4-week cow's milk elimination and challenge. RESULTS: Lymphoid
nodular hyperplasia was the most prominent endoscopic finding in half of the subjects
(46%), mostly occurring patchily in the transverse colon. Histologic findings other than
lymphoid accumulation and mildly increased density of eosinophils were few. During the
milk elimination and with supportive medication, 83% of subjects remitted. Constipation
and/or other gastrointestinal or skin symptoms relapsed only in one third (34%) during
the cow's milk challenge, these having significantly higher densities of intraepithelial
gammadelta + T cells ( P <.001) in the biopsy samples of the terminal ileum as
compared with the control subjects. CONCLUSIONS: We were able to find formal
evidence for the presence of cow's milk allergy in children with chronic constipation.
97
© 2005 ACNEM & Joachim Fluhrer
Breast Feeding and Atopic
Disease
Saarinen,Kajosaari:Breastfeeding as
prophylaxis against atopic
disease:Prospective follow-up study until
17 years old.
Lancet1995; 346:1065-69
“Breast feeding is prophylactic”
© 2005 ACNEM & Joachim Fluhrer
98
Group
Breast Feeding and Atopic
Disease
Age
1
3
5
10
17
age 17
<1 month or no
23
36
46
43
65
54
1-6 months
23
24
27
31
36
23
>6 months
11
22
34
29
42
8
substantial atopy
CLINICAL HISTORY, SKIN-PRICK TEST,IGE, RAST, NASAL EOSINOPHILS
© 2005 ACNEM & Joachim Fluhrer
99
Infantile Colic - Allergy?
Hill et al.Royal Children’s Hospital, Melbourne:
A low allergen diet is a significant intervention in infantile
colic: Results of a community-based study.
J Allergy Clin Immunol;96,6 Part 1
DBRPC trial ofcolicky infants over 1 week
38 bottle fed and 77 breast fed
casein hydrolysate or cow’s milk
Mothers diet: oligo-antigenic diet
free of additives, preservatives colours
free of milk, egg, wheat and nuts
© 2005 ACNEM & Joachim Fluhrer
104
Infantile Colic - Allergy?
“Significant higher rate of improvement
39% compared to 16%
© 2005 ACNEM & Joachim Fluhrer
105