Womens Health - PCOS Flashcards

1
Q

Q: What is PCOS, and how common is it?

A

A: PCOS is an endocrine and metabolic pathology affecting 5–20% of reproductive-age women worldwide.

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2
Q

Q: What are the hallmark features of PCOS?

A

A: Ovarian dysfunction (irregular/absent periods), hyperandrogenism, and polycystic ovaries.

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3
Q

Q: List some common signs and symptoms of PCOS.

A

A: Amenorrhoea/oligomenorrhoea, weight gain, hirsutism, thinning hair or hair loss, oily skin, acne, and infertility.

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4
Q

Q: What complications are associated with PCOS?

A

A: T2DM, gestational diabetes, hypertension, dyslipidaemia, NAFLD, metabolic syndrome, endometrial cancer, anxiety, depression, and autoimmunity (e.g., Hashimoto’s thyroiditis).

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5
Q

Q: How does elevated LH affect ovarian function in PCOS?

A

A: Increased LH amplitude and pulses stimulate ovarian theca cells to produce more androgens, leading to reduced FSH levels and impaired aromatisation of androgens to oestrogen. This results in anovulation.

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6
Q

Q: How does insulin resistance (IR) contribute to PCOS?

A

Decreases hepatic SHBG synthesis, increasing active testosterone and DHT.
Increases ovarian and adrenal androgen production.
Leads to leptin resistance, increasing obesity risk.

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7
Q

Q: What percentage of women with PCOS exhibit insulin resistance?

A

A: 75% of lean women and 95% of obese women with PCOS exhibit IR.

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8
Q

Q: How does obesity exacerbate PCOS symptoms?

A

A: Obesity increases insulin resistance, adipogenesis, inflammatory adipokines (e.g., TNF-α), and androgen production, which worsen PCOS symptoms.

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9
Q

Q: What dietary and lifestyle factors contribute to chronic low-grade inflammation in PCOS?

A

A: A Western diet high in refined carbs, processed foods, trans-fats, low omega-3:6 ratio, lack of exercise, and metabolic endotoxaemia.

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10
Q

Q: What role does gut dysbiosis play in PCOS?

A

A: Altered microbiota and reduced microbial diversity can influence hormone secretions, inflammatory pathways, and islet β-cell proliferation, further exacerbating PCOS.

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11
Q

Q: What are some genetic and environmental risk factors for PCOS?

A

A:

Genetics: Polymorphisms in CYP genes (e.g., CYP11, CYP17).
Vitamin D deficiency: Linked to increased insulin sensitivity and reduced androgen levels.
Smoking: Associated with hyperandrogenism.

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12
Q

Q: What are the therapeutic aims in managing PCOS?

A

Decrease insulin resistance, improve glucose tolerance, reduce central obesity, decrease inflammation and oxidative stress, support liver detoxification, and regulate the HPA axis.

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13
Q

Q: How does weight loss improve PCOS symptoms?

A

A: A 5–10% weight loss can significantly improve insulin resistance, hormone levels, and overall symptoms.

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14
Q

Q: What dietary changes support blood glucose balance and insulin sensitivity in PCOS?

A

A:

Focus on low GI, high-fibre foods.
Avoid trans fats and processed foods.
Optimise omega-6:3 ratio.
Include chromium-rich foods and quality protein.

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15
Q

Q: What supplements can help address insulin resistance in PCOS?

A

A:

Cinnamon: Improves insulin sensitivity and reduces IGF-1.
Berberine: Insulin-sensitising (500 mg 3x daily).
Alpha-lipoic acid: Antioxidant, enhances glucose metabolism (600–1200 mg/day).
Vitamin D, magnesium, omega-3 fatty acids, and CoQ10.

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16
Q

Q: What is seed cycling, and how can it help with PCOS?

A

A: Seed cycling involves eating 1 tbsp each of pumpkin and flax seeds during days 1–14, and 1 tsp each of sunflower and sesame seeds during days 15–28 to support hormone balance.

17
Q

Q: What herbal remedies support hormone balance in PCOS?

A

A:

Saw palmetto: Inhibits 5-α reductase, reducing DHT.
Liquorice: Inhibits conversion of androstenedione to testosterone.
Spearmint tea: Anti-androgenic.
Nettle root: Lowers DHT.
Green tea: Reduces insulin, testosterone, and inflammatory markers.

18
Q

Q: How can the microbiome be supported in PCOS management?

A

A: Use prebiotics, probiotics, fermented foods, polyphenols, fibre (30–45 g/day), and cruciferous vegetables.

19
Q

Q: What type of exercise is most effective for PCOS management?

A

A: High-intensity interval training (HIIT) or Tabata, which reduces insulin resistance, VAT fat, and HbA1C.

20
Q

Q: How does exercise affect SHBG levels in PCOS?

A

A: Regular exercise increases SHBG levels, correlating with improved hormone balance and muscle strength.

21
Q

Q: What is the role of Myo-inositol and D-chiro inositol in PCOS?

A

A: Improve insulin sensitivity, reduce LH and androgens, increase SHBG, improve menstrual cycle regularity, oocyte quality, and fertility.

22
Q

Q: How does chromium benefit women with PCOS?

A

A: Chromium picolinate reduces insulin resistance, cardiovascular risk, and T2DM by increasing enzyme sensitivity (tyrosine kinase).