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219 Cards in this Set

  • Front
  • Back
Anorexia key features?
The first is a self-induced starvation to a significant degree;
the second is a relentless drive for thinness or a morbid fear of fatness;
and the third is the presence of medical signs and symptoms resulting from starvation
DSM Dx of AN
anorexia nervosa is characterized as a disorder in which persons refuse to maintain a minimally normal weight, intensely fear gaining weight, and significantly misinterpret their body and its shape
Does loss of appetite occur in AN?
not in early part of disorder
How do AN's lose weight?
Approximately half of anorexic persons will lose weight by drastically reducing their total food intake.
The other half of these patients will not only diet but will regularly engage in binge eating followed by purging behaviors.
Anorexia nervosa is much more prevalent in GENDER and usually has its onset in AGE
Females
Teens
Hypotheses of an underlying psychological disturbance in young women with disorder?
conflicts surrounding the transition from girlhood to womanhood. Psychological issues related to feelings of helplessness
and difficulty establishing autonomy have also been suggested as contributing to the development of the disorder
Eating disorders of various kinds have been reported in up to XX percent of adolescent and young adult students
4
Anorexia nervosa has been reported (MORE OR LESS) frequently over the past several decades, with increasing reports of the disorder in ?
MORE frequently
prepubertal girls and in boys.
The most common ages of onset of anorexia nervosa are the XX, but up to Xpercent of anorectic patients have the onset of the disorder in their early ?
midteens,
5% onset in early 20's
According to DSM-IV-TR, the most common age of onset is between?
14 and 18 years
Anorexia nervosa is estimated to occur in about XX percent of adolescent girls
0.5 to 1%
It occurs XX times more often in females than in males
10 to 20
The prevalence of young women with some symptoms of anorexia nervosa who do not meet the diagnostic criteria is estimated to be close to X percent.
5%
AN is associated with which SES?
no clear distribution
AN variance by country? profession?
It seems to be most frequent in developed countries, and it may be seen with greatest frequency among young women in professions that require thinness, such as modeling and ballet.
Top 3 AN comorbidities? give %
Anorexia nervosa is associated with depression in 65 percent of cases,
social phobia in 34 percent of cases, and
obsessive-compulsive disorder in 26 percent of cases.
Neurochemically, (INCREASED OR DECREASED) norepinephrine turnover and activity are suggested by (INCREASED OR DECREASED) 3-methoxy-4-hydroxyphenylglycol (MHPG) levels in the urine and the cerebrospinal fluid (CSF) of some patients with anorexia nervosa
DECREASED
DECREASED
In patients with AN, an increase in MHPG is associated with a (INCREASE OR DECREASE) in depression
DECREASE
evidence in AN points to (lower, =, higher, unpredictable) concordance rates in monozygotic twins than in dizygotic twins
higher
Sisters of patients with anorexia nervosa are likely to be afflicted: does this reflect social influences or genetic factors?
more likely social factors
In AN, Major mood disorders are (less, =, more) common in family members than in the general population
more
What biological factor may contribute to the denial of hunger in patients with anorexia nervosa.
Endogenous opiods
What happens if give AN patient opiate ANTAGONISTS? give eg of opiate antagonist
drama weight gain; naltrexone
Biochemical changes in AN?
Starvation results in many biochemical changes, some of which are also present in depression, such as hypercortisolemia and nonsuppression by dexamethasone.

Thyroid function is suppressed as well. These abnormalities are corrected by realimentation.

Starvation produces amenorrhea, which reflects lowered hormonal levels (luteinizing, follicle-stimulating, and gonadotropin-releasing hormones). Some patients with anorexia nervosa, however, become amenorrheic before significant weight loss.
AN & CT Studies?
Several computed tomographic (CT) studies reveal enlarged CSF spaces (enlarged sulci and ventricles) in anorectic patients during starvation, a finding that is reversed by weight gain
AN & PET findings?
In one positron emission tomographic (PET) scan study, caudate nucleus metabolism was higher in the anorectic state than after realimentation
AN: CRH relation?
incraesed
AN: Plasma cortisol?
increased, mildly
AN: Diurnal cortisol difference?
blunted
AN: LH?
Decreased
AN: Growth hormone?
Impaired regulation
Increased basal levels and limited response to pharmacological probes
AN: Somatomedin C
Decreased
AN: Thyroxine (T4)
Normal or slightly decreased
AN: Triiodothyronine (T3)
Mildly decreased
AN: Reverse T3
Mildly increased
AN: Thyrotropin-stimulating hormone (TSH)
Normal
AN: TSH response to thyrotropin-releasing hormone (TRH)
Delayed or blunted
AN: Insulin
Delayed release
AN: C-peptide
Decreased
AN: Vasopressin
Secretion uncoupled from osmotic challenge
AN: Serotonin
Increased function with weight restoration
AN: NE
Reduced turnover
AN: Dopamine
Blunted response to pharmacological probes
AN: Some studies have shown evidence for dysfunction in (WHICH) three neurotransmitters involved in regulating eating behavior in the (NEUROANATOMICAL STRUCTURES)
serotonin, dopamine, and norepinephrine,

paraventricular nucleus of the hypothalamus
What family structure is often there in AN?
No family constellations are specific to anorexia nervosa, but some evidence indicates that these patients have close, but troubled, relationships with their parents
Families of children who present with eating disorders, especially binge eating or purging subtypes, may exhibit?
high levels of hostility,
chaos, and
isolation and low levels of nurturance and empathy

An adolescent with a severe eating disorder may tend to draw attention away from strained marital relationships
Which vocations assoc with AN?
girls - ballet
boys- wrestling
Sexual oreintation and AN?
A gay orientation in men is a proved predisposing factor, not because of sexual orientation or sexual behavior per se, but because norms for slimness, albeit muscular slimness, are very strong in the gay community, only slightly lower than for heterosexual women.

In contrast, a lesbian orientation may be slightly protective, because lesbian communities may be more tolerant of higher weights and a more normative natural distribution of body shapes than their heterosexual female counterparts.
Psychological explanation of AN?
patients typically lack a sense of autonomy and selfhood.

Many experience their bodies as somehow under the control of their parents, so that self-starvation may be an effort to gain validation as a unique and special person.

Only through acts of extraordinary self-discipline can an anorectic patient develop a sense of autonomy and selfhood.

unable to separate psychologically from their mothers

The body may be perceived as though it were inhabited by the introject of an intrusive and unempathic mother. Starvation may unconsciously mean arresting the growth of this intrusive internal object and thereby destroying it.

Many anorectic patients feel that oral desires are greedy and unacceptable; therefore, these desires are projectively disavowed.


Other theories have focused on fantasies of oral impregnation.
Parents respond to the refusal to eat by becoming frantic about whether the patient is actually eating. The patient can then view the parents as the ones who have unacceptable desires and can projectively disavow them; that is, others may be voracious and ruled by desire but not the patient.
An intense fear of gaining weight and becoming obese is present in (XX) % patients with the disorder and undoubtedly contributes to their lack of interest in, and even resistance to, therapy
100%
Some key behaviour features of AN?
Most aberrant behavior directed toward losing weight occurs in secret.

patients are constantly thinking about food
AN: physical signs?
physical signs such as hypothermia (as low as 35°C), dependent edema, bradycardia, hypotension, and lanugo
AN: vomiting and chemical change?
hypokalemic alkalosis
Low potassium
Low pH
An: ECG Changes?
Electrocardiographic (ECG) changes, such as T wave flattening or inversion, ST segment depression, and lengthening of the QT interval, have been noted in the emaciated stage of anorexia nervosa. ECG changes may also result from potassium loss, which can lead to death.
AN: GI problems?
Gastric dilation is a rare complication of anorexia nervosa. In some patients, aortography has shown a superior mesenteric artery syndrome
Anorexia nervosa has been divided into two subtypes?
—the food-restricting category and the binge-eating or purging category
AN: The food-restricting category is present in approximately XXpercent of cases
50%
AN: how does purging occur?
Purging represents a secondary compensation for the unwanted calories,

most often accomplished by self-induced vomiting,

frequently by laxative abuse, less frequently by diuretics,

and occasionally with emetics
List medical complications due to weight loss
Cachexia: Loss of fat, muscle mass, reduced thyroid metabolism (low T3 syndrome), cold intolerance, and difficulty in maintaining core body temperature

Cardiac: Loss of cardiac muscle; small heart; cardiac arrhythmias, including atrial and ventricular premature contractions, prolonged His bundle transmission (prolonged QT interval), bradycardia, ventricular tachycardia; sudden death

Digestive-gastrointestinal: Delayed gastric emptying, bloating, constipation, abdominal pain

Reproductive: Amenorrhea, low levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH)

Dermatological: Lanugo (fine baby-like hair over body), edema
Hematological: Leukopenia

Neuropsychiatric: Abnormal taste sensation (?zinc deficiency), apathetic depression, mild cognitive disorder

Skeletal: Osteoporosis
List medical complications due to purging
Metabolic: Electrolyte abnormalities, particularly hypokalemic, hypochloremic alkalosis; hypomagnesemia

Digestive-gastrointestinal: Salivary gland and pancreatic inflammation and enlargement with increase in serum amylase, esophageal and gastric erosion, dysfunctional bowel with haustral dilation

Dental: Erosion of dental enamel, particularly of front teeth, with corresponding decay

Neuropsychiatric: Seizures (related to large fluid shifts and electrolyte disturbances), mild neuropathies, fatigue and weakness, mild cognitive disorder
What type of history is AN: binge eating type to be associated with?
Those who binge eat and purge tend to have families in which some members are obese, and they themselves have histories of heavier body weights before the disorder than do persons with the restricting type
Binge eating–purging persons are likely to be associated with

substance abuse,
impulse control disorders, and

personality disorders.
Persons with restricting anorexia nervosa often have (type of) traits
Obsessive-compulsive
major depressive disorder or dysthymic disorder has been reported in up to XX percent of patients with anorexia nervosa
50
The suicide rate is (LOWER, =, HIGHER) in persons with the binge eating–purging type of anorexia nervosa than in those with the restricting type
HIGHER
AN: A complete blood count often reveals ? in emaciated patients with anorexia nervosa
leukopenia with a relative lymphocytosis
What labs would you order in ED?
CBC, Lytes, Fasting Glucose, Serum Salivary Amylase,
ECG, TSH, CRH
If binge eating and purging are present, serum electrolyte determination reveals ?
hypokalemic alkalosis
Fasting serum glucose concentrations are often (high, low, normal) during the emaciated phase
low
serum salivary amylase concentrations are often elevated if?
patient vomitting
cardiovasc changes in AN?
The ECG may show ST segment and T-wave changes, which are usually secondary to electrolyte disturbances; emaciated patients have hypotension and bradycardia
AN & Cholesterol?
Young girls may have a high serum cholesterol level
Which endocrine changes revert to normal after weight gain?
Endocrine changes that occur, such as
amenorrhea,
mild hypothyroidism, and
hypersecretion of corticotrophin-releasing hormone are caused by the underweight condition and revert to normal with weight gain.
How would you distinguish MDD from AN?
Generally, a patient with a depressive disorder has decreased appetite, whereas a patient with anorexia nervosa claims to have normal appetite and to feel hungry;

only in the severe stages of anorexia nervosa do patients actually have decreased appetite.

In contrast to depressive agitation, the hyperactivity seen in anorexia nervosa is planned and ritualistic. The preoccupation with recipes, the caloric content of foods, and the preparation of gourmet feasts is typical of patients with anorexia nervosa, but is absent in patients with a depressive disorder.

In depressive disorders, patients have no intense fear of obesity or disturbance of body image.
What other dx is associated with AN?
SOMATIZATION Disorder
Generally, the weight loss in somatization disorder is not as
severe as that in anorexia nervosa, nor does a patient with somatization disorder express a morbid fear of becoming overweight, as is common in those with anorexia nervosa

Amenorrhea for 3 months or longer is unusual in somatization disorder
hypo or hyper activity of the vagus nerve can cause weight loss?
hyperactivity
A recent study reviewing subtypes of anorectic patients found that restricting-type anorectic patients seemed (LESS OR MOE) likely to recover than those of the binge eating-purging type
LESS
The short-term response of patients to almost all hospital treatment programs is (GOOD, OK, POOR).
GOOD
In general, the prognosis is (GOOD, OK, POOR)
POOR
Studies have shown a range of mortality rates from?
Studies have shown a range of mortality rates from 5 to 18 percent
AN: Indicators of a favorable outcome
admission of hunger,

lessening of denial and immaturity,

and improved self-esteem
AN: predictors of poor outcome?
childhood neuroticism,

parental conflict,

bulimia nervosa,

vomiting,
laxative abuse, and

various behavioral manifestations (e.g., obsessive-compulsive, hysterical, depressive, psychosomatic, neurotic, and denial symptoms)
Ten-year outcome studies in the United States have shown that about XX of patients recover completely and another YY% are markedly improved and functioning fairly well. The other ZZ% includes an overall AA% percent mortality rate and those who are functioning poorly with a chronic underweight condition
XX=25
YY=50%
ZZ = 25
AA=7%
Swedish and English studies over a 20- and 30-year period show a mortality rate of XX percent
18%
About XX% patients with anorexia nervosa eventually will have the symptoms of bulimia, usually within the YY year(s) after the onset of anorexia nervosa
50%
1st
First goal of hospitalization in AN?
The first consideration in the treatment of anorexia nervosa is to restore patients' nutritional state;

dehydration, starvation, and electrolyte imbalances can seriously compromise health and, in some cases, lead to death
Decision to Hosp AN =?
The decision to hospitalize a patient is based on the patient's medical condition and the amount of structure needed to ensure patient cooperation.
In general, patients with anorexia nervosa who are XX percent below the expected weight for their height are recommended for inpatient programs, and patients who are YY percent below their expected weight require psychiatric hospitalization for ZZ months.
20%

30%

ZZ = 2 to 6
Inaptient approach?
maintain a firm yet supportive approach to patients,
often through a combination of positive reinforcers (praise) and negative reinforcers (restriction of exercise and purging behavior).

The program must have some flexibility for individualizing treatment to meet patients' needs and cognitive abilities.

Patients must become willing participants for treatment to succeed in the long run.
Compulsory admission or commitment should be obtained only when?
the risk of death from the complications of malnutrition is likely.
Hosp tx program guidelines?
Patients should be weighed daily, early in the morning after emptying the bladder.

The daily fluid intake and urine output should be recorded.

If vomiting is occurring, hospital staff members must monitor serum electrolyte levels regularly and watch for the development of hypokalemia.

Because food is often regurgitated after meals, the staff may be able to control vomiting by making the bathroom inaccessible for at least 2 hours after meals or by having an attendant in the bathroom to prevent vomiting.

Constipation in these patients is relieved when they begin to eat normally.

Stool softeners may occasionally be given, but never laxatives. If diarrhea occurs, it usually means that patients are surreptitiously taking laxatives.

Because of the rare complication of stomach dilation and the possibility of circulatory overload when patients immediately start eating an enormous number of calories, the hospital staff should give patients about 500 calories over the amount required to maintain their present weight (usually 1,500 to 2,000 calories a day). It is wise to give these calories in six equal feedings throughout the day, so that patients need not eat a large amount of food at one sitting.

Giving patients a liquid food supplement such as Sustagen may be advisable, because they may be less apprehensive about gaining weight slowly with the formula than by eating food
Psychotherapy:

Type of therapy has been found effective for inducing weight gain;
Cognitive therapy evidence in AN?
Behavior therapy has been found effective for inducing weight gain; no large, controlled studies of cognitive therapy with behavior therapy in patients with anorexia nervosa have been reported
What is relationship to AN, Family therapy and age?
In one controlled family therapy study in London, anorectic patients under the age of 18 benefited from family therapy, whereas patients over the age of 18 did worse in family therapy than with the control therapy
What is level of evidence for Rx in AN?
Pharmacological studies have not yet identified any medication that yields definitive improvement of the core symptoms of anorexia nervosa
Some reports support the use of (RX) for patients with the restricting type of anorexia nervosa. Rx has also been reported to have some benefit
cyproheptadine (Periactin), a drug with antihistaminic and antiserotonergic properties,
Amitriptyline (Elavil) has also been reported to have some benefit
Which Rx have been tried in AN?
clomipramine,
pimozide (Orap), and
chlorpromazine (Thorazine). Trials of fluoxetine have resulted in some reports of weight gain,
What often terminates binge eating in Bulimia nervosa?
Social interruption or physical discomfort—that is, abdominal pain or nausea
Body weight in BN?
usually normal
What is more prevalent - BN or AN?
BN
BN prevalence?
2 to 4 %
BN: gender?
women >men
BN vs AN: onset?
BN is later than AN, i.e., late adolescence or early adulthood
Approximately XX percent of college women experience transient bulimic symptoms at some point during their college year
20%
In industrialized countries, the prevalence of BN is about X% of the general population
1
Which NT implicate in BN and why?
Because antidepressants often benefit patients with bulimia nervosa and because serotonin has been linked to satiety, SEROTONIN and NOREPINEPHRINE have been implicated.
What is bio explanation of why patients feel better after vomiting?
Because plasma endorphin levels are raised in some bulimia nervosa patients who vomit, the feeling of well-being after vomiting that some of these patients experience may be mediated by raised endorphin levels
Is BN in higher frequency among 1st degree relatives?
Yes
BN associated with depression?
Yes
Compare families of BN with AN
the families of patients with bulimia nervosa are generally
less close and
more conflictual
than the families of those with anorexia nervosa
Patients with bulimia nervosa describe their parents as
neglectful and
rejecting
outgoing, angry, and impulsive describes AN or BN?
BN
Alcohol dependence: AN or BN?
BN
Shoplifting? AN or BN
BN
Emotional Lability? AN or BN
BN
Suicide Attempts? AN or BN?
BN
Ego-dystonia: AN or BN?
BN
Help seeking: AN or BN?
BN
High or Low Super Ego control associated with BN?
Lower than AN
Self-destructive sexual relationships: AN or BN?
BN
BN: difficulties seperating from caregivers or difficulties with being distanst
difficulties seperating
Do people with BN have good, bad or no hx of transitional objects?
No. Some say BN is the transitional object.
Psychological theory of BN?
Patient struggle for independence from maternal figure which is played out in the ambivalence toward food; eating = fuse with caretaker, regurgitating = seperation (all unconscious)
Time criteria for BN?
episodes 2X/week or more for at least 3 months
BN: compensatory behaviors are practiced after binge eating to prevent weight gain, primarily self-induced vomiting, laxative abuse, diuretics, or abuse of emetics (XX percent of cases)
80
BN: severe dieting and strenuous exercise (XX percent of cases)
20%
Which comes first, binging or vomiting and by how much?
Binging usually precedes vomiting by about 1 year.
When is depression associated with BN - before or after binge?
after, postbinge anguish
What type of food is preferred in binges?
binges, patients eat food that is sweet, high in calories, and generally soft or smooth textured, such as cakes and pastry. Some patients prefer bulky foods without regard to taste. The food is eaten secretly and rapidly and is sometimes not even chewed
Which patients are more concerned with sexual activity - AN or BN
Most are sexually active, compared with anorexia nervosa patients, who are not interested in sex
Pica -- AN or BN?
BN
Patients with BN have increased rates of?
Patients with bulimia nervosa also have increased rates of anxiety disorders, bipolar I disorder, and dissociative disorders, and histories of sexual abuse
List the features associated with BN - purging type.
Non-Purging: less image distortion, less anxiety about eating, tend to be obese

Purging:greater risk hypokalemia, and hypochloremic alkalosis, gi tears,
Who is more likely to have an electrolyte abnormality:
Low weight AN or BN?
Which lytes?
BN, especially if purge
low potassium
hypochloremic alkalosis
low Mg
High Amylase
Thyroid function in BN?
normal generally
Dexamethasone suppression test?
non-suppression
DDX of BN?
Epilepsy/Seizure Ds
CNS tumors
Kluver-Bucy syndrome
Kleine-Levin syndrome
What is Kluver-Bucy Syndrome?
ors, Klüver-Bucy syndrome, or Kleine-Levin syndrome. The pathological features manifested by Klüver-Bucy syndrome are visual agnosia, compulsive licking and biting, examination of objects by the mouth, inability to ignore any stimulus, placidity, altered sexual behavior (hypersexuality), and altered dietary habits, especially hyperphagia.
Kleine-Levin syndrome is what?
Kleine-Levin syndrome consists of periodic hypersomnia lasting for 2 to 3 weeks and hyperphagia. As in bulimia nervosa, the onset is usually during adolescence, but the syndrome is more common in men than in women
If have BN and Seasonal Affective Ds, can you get seasonal variation in BN also?
Yes, so tx with 10 000 lux for 30 minutes in am at 20 inches away
Some patients with bulimia nervosa—perhaps XX percent—have multiple comorbid impulsive behaviors, including:
Some patients with bulimia nervosa—perhaps 15 percent—have multiple comorbid impulsive behaviors, including substance abuse, and lack of ability to control themselves in such diverse areas as money management (resulting in impulse buying and compulsive shopping) and sexual relationships (often resulting in brief, passionate attachments and promiscuity)

They exhibit self-mutilation, chaotic emotions, and chaotic sleeping patterns
BN often meet criteria for which Axis I/II ds?
They often meet criteria for borderline personality disorder and other mixed personality disorders and, not infrequently, bipolar II disorder
(AN or BN) is characterized by higher rates of partial and full recovery compared with (AN or BN)
BN vs AN
What is course of untx BN?
unimpressive improvement with time
What is 10 year outcome of those who received tx?
progressive decline with BN
10 year follow-up of BN
Approximately XX percent continued to engage in recurrent binge-eating or purging behaviors
30%
BN and 10 year outcome, what predicted worse outcome?
substance use
At 10 year follow-up of BN, what % of women were fully recovered
38 to 47%
Who are more secretive about sx: AN or BN?
AN
Do most people with BN need hosp or outpatient tx?
outpatient
Does psychotherapy work in BN?
Some OBESE patients with bulimia nervosa who have had prolonged psychotherapy do surprisingly well.
When hosp BN?
failed outpatient
SI
Substance abuse
Medical: lytes
What is the 1st line Tx for BN?
CBT
Describe CBT for BN?
Sessions: 20
Months: 6
Goals:
1. Interrupt self-maintaining behavioral cycle of binging and dieting
2. Change individual's dysfxnal congitions; beliefs about food, weight, body image; and overall self-concept
Dynamic view of BN?
Splitting & Projection

splitting -- nutrious food = good introjects, junk food = bad, expelling = also expelling associated bad introjects, all destructiveness, hate, badness

After expelling bad, all good short-lived because of unstable combo of splitting with PROJECTION.
Which Rx have been shown to be helpful in treating Bulimia?
This includes the selective serotonin reuptake inhibitors (SSRIs), such as fluoxetine.
In BN what do antidepressants do that may help in BN?
increase central 5-hydroxy
Try-Ptamine 5HTP levels
Do Antidep help in BN even if don't have depression?
yes
Which other drugs besides SSRI helpful in BN?
Imipramine (Tofranil), desipramine (Norpramin), trazodone (Desyrel), and monoamine oxidase inhibitors (MAOIs) have been helpful
What dose of antidepressant in BN?
In general, most of the antidepressants have been effective at dosages usually given in the treatment of depressive disorders. Dosages of fluoxetine that are effective in decreasing binge eating, however, may be higher (60 to 80 mg a day) than those used for depressive disorders.
BN and Mood stablizers. Any role?
Not for BN only,
but if comorbid ds, like BP1 then yes especially
Carbamazepine and lithium
Evidence indicates that the use of antidepressants alone results in a XX percent rate of abstinence from bingeing and purging
22
BN: what is best tx: CBT alone, Antidepressant alone, combo?
Combo
What are some features of EdNOS
Binge-eating disorder—that is, recurrent episodes of binge eating in the absence of the inappropriate compensatory behaviors characteristic of bulimia nervosa (Table 23.2-3)—falls into this category. Such patients are not fixated on body shape and weight.
List three main causes obesity:
genetics
high energy diet
low activity
What is the leading cause of death in the US?
obesity
What % of male, female body weight is fat?
Male 25%
Female: 18%
What are BMI categories?
How is BMI calculation done?
20 to 25 normal
25 to 27 elevated risk
27 clearly increased
>30 greatly increased risk
kg/m2
US population overweight prevalence?
34%
one third, BMI 25 to 30
Obesity (BMI >30) = % of US?
32%
Extreme obesity: BMI >40 % of US?
2.8% men
6.9% women
Which population has highest obesity?
non-hispanic black women
% Children obese in 2004?
How about kids 2 to 5?
18 (increase from 15%)
10%
If difference between intake and out-take is XX percent, get 30 pound change in body weight in 1 year
10%
NT's involved in obesity?
Some studies have shown evidence for dysfunction in serotonin, dopamine, and norepinephrine involvement in regulating eating behavior through the hypothalamus.
Hormonal factors involved in obesity?
CRF,
Neuropep Y,
Gonadotropic-releasing horm
TSH
Leptin
What is obestatin?
hormone made in stomach that produces satiety
What is relationship of cannabis to appetite?
cannabis stimulates appete
a cannabis inverse antagonist, RIMONABAUT, blocks appetite
Leptin Role?
suppresses feeding, in hypothalamus
Neuropeptide Y fxn?
stimulates feeding
Ghrelin fxn?
in stomach, activates Neuropeptide Y (So stimulates food intake)
Melanocortins: fxn?
acts on hypothalamus
suppresses appetite because disrupted receptor on mice associated with obesity
Carboxypeptidase E fxn?
Dyxnfxn (mutated gene) = obesity ... which can be treated by insulin in mice
Mitochondrial uncoupling proteins
found in brown and white fat
involved in energy expenditure and body weight regulation
Tubby protein
Highly expressed in PVN
mutated gene = obesity
What % of people with obesity have family hx of obesity?
80%
What is the difference between childhood and adulthood body fat?
Once the number of adipocytes has been established, it does not seem to be susceptible to change. Obesity that begins early in life is characterized by adipose tissue with an increased number of adipocytes of increased size. Obesity that begins in adult life, on the other hand, results solely from an increase in the size of the adipocytes
Which fat pattern is associated with CV disease?
pot-belly (waist, flanks, abs) versus thighs and buttocks
Is cellulite a medical term?
NO
When leptin is low, more or less fat is consumed? how about when high?
when low, more fat consumed
when high less fat consumed
Which brain damage areas can produce obesity?
destruction of VentroMedial Hypothalamus
CNS, lateral and ventromedial hypothalamic areas, adjusts to food intake in reponse to changing energy requirements
What illnesses can cause obesity?
Prader Willi
Neuroendocrine problems
damage to VMH
Some Deprssion, especially Seasonal
Cushing's disease
Which Rx assoc with obesity?
long term steroid use
MDD, Psychosis, Bipolar ds gain 3 to 10kg with psychotropics
What is night eating syndrome associated with?
eat excessively after eve meal ... precipitated by stressful life circumstances
Which drug has been associated with night eating?
Zolpidem (Ambien)
What is Pickwickian syndrome?
When person is 100% over desirable weight
What % of obese people have Body Dysmorphic ds?
Mainly people obese since childhood
What are the 5 risk factors for Metabolic syndrome?
1. Abdominal obesity
2. High triglyceride levels
3. Low HDL cholesterol level
4. HTN
5. Elevated fasting blood glucose level.
Which Antidepressant has greatest likelihood of increasing appetite?
Amitriptyline (Elavil)
Which mood stablizers associated with greatest weight gain? least?
Lithium and Valproic Acid most
Least: Topiramate
What are some effects of obesity on health?
oberweight patients have more HTN
and High cholesterol
Diabetes
Men: Higher mortality from :
colon, rectal, and prostate cancer
Women: Cancer of gallbladder, biliary passages, breast, uterus, ovaries
Risk of death and overweight?
more overweight, higher risk of death
Extreme obesity =?
twice desirable weight
A number of studies have demonstrated that decreasing caloric intake by XX percent or more in young or middle-aged laboratory animals prevents or retards age-related chronic diseases and significantly prolongs maximal life span
30
How does eating less in young/middle age prolong lifespan?
reductions in metabolic rate, oxidative stress and inflammation, improved insulin sensitivity, and changes in neuroendocrine and sympathetic nervous system function
What % of people who lose significant weight, regain it
90%
Problems with fasts?
orthostatic hypotension,
sodium diuresis, and
impaired nitrogen balance
ketogenic diet
nausea, hypotension, and lethargy.
What is recommended weight loss calories?
1,100 to 1, 200 calories supplemented with vitamins:
iron, folic acid, zinc and
vitamin b6
What is approach to drug therapy for weight loss?
Drug treatment is effective because it suppresses appetite, but tolerance to this effect may develop after several weeks of use. An initial trial period of 4 weeks with a specific drug can be used; then, if the patient responds with weight loss, the drug can be continued to see whether tolerance develops. If a drug remains effective, it can be dispensed for a longer time until the desired weight is achieved.
Which rx can you use for weight loss, and is approved by FDA?
orlistat (Xenical), which is a selective gastric and pancreatic lipase inhibitor that reduces the absorption of dietary fat (which is then excreted in stool).

The principal adverse effects of orlistat are gastrointestinal; patients must consume 30 percent or fewer calories from fat to prevent adverse events that include oily stool, flatulence with discharge, and fecal urgency
What is Sibutramine?
Sibutramine (Meridia) is a β-phenylethylamine that inhibits the reuptake of serotonin and norepinephrine (and dopamine to a limited extent)

It was approved by the FDA in 1997 for weight loss and the maintenance of weight loss (i.e., long-term use).
Which class of drugs are among most widely used appetite suppressants?
Dopamine receptor agonists, or sympathomimetics, are among the most widely used appetite suppressants.
What Cannabinoid Receptor is associated with with weight loss?
CB1 blockade by
RIMONABANT
Rimonabant effects?
At a dose of 20 mg rimonabant causes significant weight loss, reduction in waist circumference, increase in HDL cholesterol, and reduction in triglycerides.

At that dose it also increases in plasma adiponectin levels. Adiponectin is a protein hormone that modulates glucose regulation and fatty acid catabolism. Adiponectin is exclusively secreted from adipose tissue and its plasma levels are inversely correlated with body mass index (BMI). It appears to help suppress metabolic abnormalities that lead to type 2 diabetes, obesity, and atherosclerosis.
Gastroplasty effects?
In gastroplasty the size of the stomach stoma is reduced so that the passage of food slows
Which surgey has not effect on weight loss in the long run?
Lipectomy
liposuction
Is surgery recommended for anyone?
Bariatric surgery is now recommended in individuals who have serious obesity-related health complications and a BMI of greater than 35 kg/m2 (or a BMI >40 kg/m2 in the absence of major health complications).
Which style of psychotherapy helps?
Not so much psychodynamic
Try Behaviour Modification
How would you set up Behav mod for obesity?
Diary: triggers to eating
New Patterns: eat slowly, chew food well, not read while eating,
Not eat between meals or when not seated.
Reward and reinforce weight loss
Group therapy
Benefits of weight loss and exercise?
1) modestly contributes to weight loss in overweight and obese adults, (2) may decrease abdominal fat, (3) increases cardiorespiratory fitness, and (4) may help with maintenance of weight loss.
Weight Loss Plan?
Asess: BP, HTN, Cholesterol, Glucose, BMI, Circumference, WEight
Target: 10% weight loss, 1 to 2 pounds per week over 6 months
Reduce intake: deficit of 500 to 1000 cal per day from norm, decrease, fats, carbs,
Increase Physical activity, sweat everyday
Invest heavily in weight maintenance