4-1 Endocrine Flashcards

0
Q

Powerful immunosuppresant

A

Cprtisol

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1
Q

Give classic endocrine glands

A
Potuitary
Thyroid
Parathyroid
Pancreatic islets
Adrenals
 gonads
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2
Q

These have profound effects on the functions of potuitary, adrenal, thyroid, and gonads

A

Cytokines and ILs

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3
Q

May manifest findings such as central fat redistribution, striae, proximal muscle weakness, in addition to feats common to general population

A

Cushings syndrome

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4
Q

Mental slowing, fatigue, dry skin and other findings– can be difficult to distinguish

A

Hypothyroidism

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5
Q

Most important dx tool in endo

A

Immunoassay

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6
Q

5major classes of hormones

A
Amino acid 
Small neuropeptides
Large proteins
Steroid hormones
Vitamin derivatives
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7
Q

Give example of large proteins?

A

Insulin
LH
PTH

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8
Q

Examples of small neuropeptides?

A

GnRH
TRH
Somatostatin
Vasopressin

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9
Q

Are heterodimers that have

A

Glycoprotein hormones

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10
Q

Have structural similarities that are most apparent when precursor forms of the protein are compared

A

Insulin

Igf 1 and 2

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11
Q

Another important example of cross talk is seen with________; these have amino acid sequence similarity.

A

PTH

PTHrP

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12
Q

Type 1 nuclear receptors bind what?

A

Steroids

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13
Q

Hormone binding is highly is highly specific for a single type of nuclear receptor; the only exception is?

A

Glucocortixoid and mineralocortixoid receptors

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14
Q

Gluco and minerlocorticoid exemption, This phenomenon is particularly pronounced in?

A

Ectopic AcTH syndrome

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15
Q

This feature of edtrogen receptor makes it susceptible to activation bh rnvironmental estrogens

A

Can bind to an array of compounds

16
Q

Prohormone of AcTH

A

POMC

17
Q

Prohormone conversion occurs not only for peptide hormones but also for certain steroids such as

A

Testos ➡️ dht

T3 ➡️ t4

18
Q

These precursors generate multiple biologically active peptides

A

POMC

Proglucagon

19
Q

Synthesis of most steroid hormones is based on modifications of the precursor

A

Cholesterol

20
Q

Repressed directly by thyroid hormones acting through thyroid hormone (TR)

A

Tsh genes

21
Q

For some hormones, substantial regulation occurs at

A

Level of translational efficiency

22
Q

Stored in secretory granules

A

Peptide hormones

23
Q

Transports cholesterol into the mitochondrion

A

Steroidogenic acute regulatory protein

24
Q

Hormonal signal that is evanescent

A

Somatostatin

25
Q

Longer lived hormonal signal

A

TSH

26
Q

Its prolonged half life accounts for relatively constant serum levels even though tsh is secreted in discrete pulses

A

TSH