PCOS, Endometriosis, & Abnormal Growths Flashcards
About X% of normally ovulating women experience polycystic ovaries but do not experience other criteria surrounding a PCOS diagnosis.
25%
True or False: Polycystic Ovary Syndrome is characterized by a certain set of conditions rather than one standalone diagnostic parameter such as polycystic ovaries.
True
Why can’t PCOS be diagnosed through ultrasound alone?
We now understand is that this syndrome is way more complex, and is characterized by a certain set of conditions, rather than one standalone diagnostic parameter such as polycystic ovaries. It is said that about 25% of normally ovulating women experience polycystic ovaries but do not experience other criteria surrounding a PCOS diagnosis
There has been recent conversation of if Polycystic Ovary Syndrome is an accurate name for this condition, and if it should be renamed as BLANK, as not all cases have polycystic ovaries.
Metabolic Reproductive Syndrome
In order to diagnose PCOS properly, according to the Androgen Excess & PCOS Society Criteria, a woman must experience which 3 of the following biomarkers?
- Irregular cycle OR polycystic ovaries
- High androgens or symptoms of high androgens
- Ruled out other conditions that could potentially cuase hyperandrogenism
This criteria for diagnosing PCOS is perhaps more accurate than other forms but is met with high controversy in varying medical communities.
What is hyperandrogenism?
High androgens
Androgens like testosterone are sex hormones.
What are symptoms of high androgens?
- Deepening or hoarsening voice, acne, especially along the chin-line
- Hirsutism, which is characterized as male-patterned hair loss or hair thinning, facial, nipple, or other body hair growth.
What are other conditions that could potentially cuase hyperandrogenism?
- Congenital adrenal hyperplasia
- Cushing’s disease
- Ovarian or adrenal tumors
- Certain medications, such as progestin-only birth control with a high androgen index
What is the Rotterdam criteria?
Was formed to diagnose PCOS as an alternative criteria option with less rigorous parameters.
Although potentially less accurate, it is more commonly used to refer to and diagnose PCOS.
According to the Rotterdam criteria, a woman must have 2 of the 3 following biomarkers to get diagnosed with PCOS?
- Polycystic ovaries on ultrasound
- Irregular cycles
- High androgens or symptoms of high androgens (as well as ruling out other conditions associated with hyperandrogenism)
This means that a woman could technically be diagnosed with PCOS if she shows having polycystic ovaries and irregular cycles, but not hyperandrogenism, which is considered amongst many as a main characteristic of PCOS, as it tends to be the driving factor behind ovarian suppression leading to the other symptoms
What is the issue with the Rotterdam Criteria?
A woman could technically be diagnosed with PCOS if she shows having polycystic ovaries and irregular cycles, but not hyperandrogenism, which is considered amongst many as a main characteristic of PCOS, as it tends to be the driving factor behind ovarian suppression leading to the other symptoms.
What are some of the reasons that could cause a woman to experience anovulation and irregular cycles that aren’t specifically related to high androgens?
- Physical & psychological stress
- Elevated prolactin
- Exposure to endocrine-disrupting chemicals
- Decreased FSH
- Perimenopause
- Any other condition that would suppress or interfere with hypothalamic & pituitary hormone output
Prolactin is a hormone that’s responsibel for lactation, certain breast tissue development and milk production.
What are Polycystic Ovaries defined as and why?
12 or more pre-antral follicles measuring 2–9 mm and/or an increased ovarian volume.
Because in a normal ovulating woman, it is common for up to 12 pre-antral follicles to develop per ovulatory cycle, of which only one is chosen to become the primary antral follicle that will go on to ovulate an egg. The rest are merely suppressed and may resemble small cysts during the follicular phase until they are reabsorbed by the ovaries
Teenage girls may exhibit up to BLANK pre-antral follicles per ovulatory cycle, so the definition of polycystic ovaries may vary upon age.
25
Should a doctor diagnose a teenage girl with PCOS?
Only time can tell for these young women if they do indeed have PCOS or not, as their pre-antral follicle count may eventually lower to average levels, and their body may become accustomed to their hormonal cycles, leading to more regular ovulatory cycles.
Despite all the varying diagnostic criteria, there is a general consensus that PCOS is characterized by BLANK and BLANK
ovulatory failure and high levels of androgens
Although this may seem simple, we have to consider that there are varying driving factors that contribute to these situations, which may be different for each individual.
For many, PCOS tends to be a low-BLANK stage, which goes against the common belief that excess estrogen can drive PCOS symptom. Why is this?
Estrogenic
Often the result of improper aromatization due to leptin resistance and abnormalities in the follicular granulosa cells, which can be partial to blame for both hyperandrogenism and anovulation in women with PCOS.
Because women with PCOS do not ovulate regularly, they tend to experience BLANK dominance by ratio, potentially contributing to symptoms such as PMS and heavy periods.
Estrogen
Roughly 70% of women with PCOS have been shown to have decreased BLANK sensitivity, suggesting that BLANK may be an extremely common factor behind many PCOS cases
Insulin; insulin resistance
Interestingly, there may also be a connection between BLANK downregulation in women with PCOS, further contributing to dysregulated blood sugar and insulin resistance.
GLUT4
Why do we refer to Insulin resistance-driven PCOS as Ovarian PCOS?
Because high insulin levels can increase LH production, causing the ovaries to produce more androgens and less estrogen.
Lutenizing Hormone, spurs ovulation and helps with the hormone production needed to support pregnancy.
What may account for the abnormal elevation in LH in women with PCOS?
Altered GnRH pulsation, as well as lowered Inhibin B,
Gonadotropin-releasing hormone is a releasing hormone responsible for the release of follicle-stimulating hormone and luteinizing hormone from the anterior pituitary
What is a common pattern we see in PCOS?
A higher LH to FSH ratio (high LH, low FSH), typically a ratio of 3:1
High insulin can contribute to increased BLANK and BLANK.
Weight gain and adipose tissue
What may be a primary reason why obesity is so prevalent in individuals with PCOS?
Insulin is a storage hormone.
When it is not able to properly deliver glucose to cells for energy production, it will be delivered to adipose tissue for storage instead. This in turn can increase weight gain .
Not everyone with PCOS is BLANK, and not everyone who is BLANK with ovulatory or fertility issues has PCOS.
obese; obese
Those who do have PCOS in addition to obesity are at more risk for developing worsening BLANK issues.
metabolic
What is Non-Alcoholic Fatty Liver Disease?
A common condition associated with PCOS; where fatty acids deposit within the liver (as well as other organs) causing inflammation, scarring, and damage of liver cells.
Non-Alcoholic Fatty Liver Disease (NAFLD) is commonly associated with what?
Insulin resistance, visceral obesity, high cholesterol, and metabolic syndrome.
Viseral obesity is belly fat found deep within your abdominal cavity. Metabolic syndrome includes high blood pressure, high blood sugar sugar, too much fat around the waist, and irregular cholesterol levels.
The high prevalence of obesity and adipose tissue deposition in BLANK can also factor into BLANK, which may lead to aromatization deficiency, lowered estrogen, and anovulation.
PCOS; leptin resistance
Leptin is considered the BLANK hormone
Satiety.
It is produced within adipose tissue and plays a role in controlling appetite regulation.
When energy is needed, leptin decreases to allow for the sensation of hunger and desire to eat, whereas when energy is not needed, leptin steps in to increase satiety and a feeling of “fullness”.
When energy is needed, BLANK decreases to allow for the sensation of hunger and desire to eat, whereas when energy is not needed, BLANK steps in to increase satiety and a feeling of “fullness”.
Leptin; Leptin
With BLANK, the dysfunction that can occur is similar to that of insulin resistance and adrenal insufficiency. When adipose tissues are constantly being filled with glucose stores, leptin levels will increase.
Obesity.
Eventually, the BLANK can become desensitized to leptin’s message, leading to leptin resistance
hypothalamus
When the brain is resistant to leptin’s signals for satiety, it can increase feelings of hunger and desire to over-eat, further perpetuating insulin resistance and obesity-related issues.
When the brain is resistant to BLANK’s signals for satiety, it can increase feelings of hunger and desire to over-eat, further perpetuating insulin resistance and obesity-related issues.
Leptin’s
BLANK resistance can interfere with the development of oocytes and can downregulate aromatization, leading to higher testosterone and lowered levels of estrogen which can contribute to a higher prevalence of anovulation and hyperandrogenism.
Leptin
With PCOS, low levels of BLANK can further exacerbate hyperandrogenism by initiating a faulty feedback loop
Estrogen
When estrogen levels are low, this signals to the brain that there’s a need for more estrogen.
All estrogen is produced from the conversion of androgens, so naturally, the body is going to respond to the signal for more estrogen by increasing androgen production.
When aromatization is deficient, this can further exacerbate the faulty feedback loop, contributing to even more testosterone levels and symptoms thereof
Because one of BLANK’s roles is to promote insulin sensitivity, low BLANK levels may be a reason behind why insulin resistance, weight gain, and ovulatory health can be so challenging to correct in individuals with PCOS
Estrogen’s; estrogen
High insulin levels can also drive DHEA metabolism down the BLANK pathway, which can lead to what symptoms?
Alpha-reductase; more androgenic symptoms such as Hirsutism, due to Testosterone being converted into DHT (Dihydrotestosterone).
DHT can lead to what symptoms?
Male-pattern balding and facial/body hair growth.
Within the hair follicle, DHT causes follicle miniaturization and eventually hair loss, whereas, in sebaceous glands of the skin, DHT production can lead to hair growth, typically around the chin, above the upper lip, around the nipples, and near the pubic region.
In Adrenal-Driven PCOS, what is the primary marker?
High levels of the adrenal androgen DHEA S, rather than ovarian androgens such as Testosterone and Androstenedione.
Why is elevated DHEA-S the distinguishing factor in Adrenal-Driven PCOS?
DHEA and DHEA-S are only produced within the adrenals, whereas androstenedione and testosterone can be produced in both the ovaries and the adrenals.
In Adrenal-Driven PCOS, the primary marker is high levels of the adrenal androgen DHEA S, rather than ovarian androgens such as Testosterone and Androstenedione
Depending upon the individual, why might symptoms may remain similar as ovarian-PCOS?
More potent forms of androgens such as Testosterone and DHT can be produced via peripheral conversion in tissues such as the skin, hair follicles, and adipose tissue.
It is uncommon to see BLANK as a factor with adrenal-driven PCOS as DHEA supports BLANK and high levels of BLANK tend to reduce the prevalence of DHEA
insulin resistance; insulin resistance; insulin
Before adrenal-driven PCOS can be confirmed, one must rule out other factors that can lead to higher levels of DHEA, such as what?
high prolactin, congenital adrenal, hyperplasia, and certain medications such as Metformin, Troglitazone (used to treat type 2 diabetes), Danazol (used to treat endometriosis), Xanax, Ritalin, and Nicotine.
What is Adrenal PCOS driven by?
An abnormal response to stress, characterized by HPA axis overstimulation.
When the hypothalamus perceives a stressful situation, it produces CRH in response, which stimulates the pituitary to produce ACTH. ACTH promotes the production
of both cortisol and DHEA/DHEA-S within the adrenals.
As cortisol rises, it stimulates a negative feedback response to the hypothalamus shutting off the CRH/ACTH production. DHEA is produced in response to elevated cortisol as a mechanism to protect the brain from the negative impacts of stress. However, with DHEA, there is no negative feedback shutting off production, as there is with cortisol. Thus, chronic stress, HPA dysfunction, and adrenal insufficiency may lead to increasing levels of DHEA/ DHEA-S within the system. This in turn can contribute to the onset of adrenal PCOS symptoms.
With DHEA, is there a negative feedback shutting off production as there is with cortisol?
No, chronic stress, HPA dysfunction, and adrenal insufficiency may lead to increasing levels of DHEA/ DHEA-S within the system. This in turn can contribute to the onset of adrenal PCOS symptoms.
What can contribute to the onset of adrenal PCOS symptoms?
With DHEA, there is no negative feedback shutting off production, as there is with cortisol. Thus, chronic stress, HPA dysfunction, and adrenal insufficiency may lead to increasing levels of DHEA/ DHEA-S within the system.
What can contribute to irregular ovulation through stimulating cues of internal stress? How?
High levels of inflammation which stimulate cues of internal stress will tell the adrenals to produce the hormones norepinephrine, epinephrine, and cortisol, suppressing GnRH, and inhibiting or delaying ovulation.
What hormones get produced from the adrenals when there are high levels of inflammation, innhibiting or delaying ovulation?
Norepinephrine, epinephrine, and cortisol, which suppress GnRH.
Inflammation can damage BLANK and BLANK? Why?
Follicle and egg quality, as the pre-antral follicle and oocyte developmental processes are very sensitive to inflammation.
Inflammation can also damage follicle and egg quality, which can lead to what?
Poor ovulatory outcome, cyst development, failure to ovulate, and if ovulation does happen to occur, poor corpus luteum quality and low progesterone production.
What is Inflammation-driven PCOS most commonly characterized by?
Symptoms of PCOS without having insulin resistance, but it can very well contribute to insulin resistance over time, further exacerbating PCOS conditions.
Why can inflammation lead to insulin resistance over time, further exacerbating PCOS conditions?
The inflammatory cascade can contribute to insulin resistance by suppressing the negative feedback loop of glucagon and insulin in the pancreas.
Inflammation may contribute to excess BLANK and either an increase or decrease in BLANK, depending on the severity, which can negatively affect hormone health and ovulatory function.
cortisol; DHEA