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

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)

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
Hormonal signal that is evanescent
Somatostatin
25
Longer lived hormonal signal
TSH
26
Its prolonged half life accounts for relatively constant serum levels even though tsh is secreted in discrete pulses
TSH