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E
EC50, 17 Ectopic hormone secretion, 14 Egg donation, 130 Eicosanoids, 165–166, 165f
eicosanoids, 164–166 Emergency hormonal contraception, 129 Endocrine axis, 8 Endocrine control of parturition, 115 Endocrine disorders, 10
causes, 11t–12t
features, 11t–12t
investigation of, 10–14
biological samples, 13 ectopic hormone secretion, 13–14 imaging, 13, 13t
Endocrine glands
autocrine regulation, 6, 6f
classical, 2
hormones, 3t
neural regulation, 2–3, 4f
neuroendocrine, 2–3, 4f
paracrine, 6, 6f Endocrine hypertension, 60 Endocrine pancreas, 134, 134t Endocrine regulation
hormone secretion patterns, 8–10, 8f
diurnal variation, 8 endocrine axis, 9, 9f episodic secretion, 8 negative feedback, 9–10, 9f set point regulation, 8–9
Endocrinology, 2
bone, 151–153
centenary, 2, 2f
endocrine tests, 12
hormones, 3t
multiple organ disorders
autoimmune polyglandular
endocrinopathy, 171
multiple endocrine neoplasia (MEN),
171, 171t multiple organ disorders in, 171 next 100 years of, 172 pregnancy, 112–115, 114f
Environmental endocrine disruptors, 100 Epidermal growth factor receptor (EGF- R),
22
Erythropoietin, 164
F
Female reproductive system
endocrinology of pregnancy, 112–115, 114f
adrenocorticotropic hormone (ACTH),
113
binding proteins, 113 endocrine control of parturition, 115 foeto–placental unit, 112–113, 114f hormone secretion by the placenta, 112 lactation, 115, 115f modern pregnancy testing kit, 113b
Female reproductive system (Continued)
non- placental hormones, 113 old- fashioned pregnancy testing, 113b placenta, 112
hormone- dependent cancer in women,
107
menstrual cycle, 107–110 ovaries. See Ovaries puberty, 102
structure of, 102, 102f Fertilisation, 112 Fertility
differentiation, 118
gender determination, 118
hormones
assisted conception, 129–130 contraception, 128–129 hormonal control, 128–129 hormone replacement therapy, 126–127 menarche, 120–122 puberty. See Puberty
reproductive hormones, 118
sexual differentiation
abnormalities of, 119–120, 119f
hormonal control of, 118–119 Fetal programming, 115 Fight or flight response, 54 Foetal adrenal gland, 55 Foetal zone, 55 Foeto–placental unit, 112–113, 114f Follicle stimulating hormone (FSH), 41, 94,
104, 107, 120–121 Follicular cells, 78–79 Folliculostellate cells, 40–41
G
Gender benders, 100 Gender determination, 118 Germ cells, 91–92 Gestational diabetes, 145 Glucagon, 137–138 Glucagon- like peptide 1 (GLP1), 134 Glucocorticoids, 25, 47, 71–73, 72f, 158
pharmacological uses of, 73–74, 74t steroid treatment card, 74, 74f
Glucose
blood, levels, 135
diabetes clinic, 142 diabetes mellitus, 138–145 disorders of, 138–145 endocrine pancreas, 134, 134t gestational diabetes, 145 glucagon, 137–138 at home, 141–142 insulin secretion, 134 measurement, 141–142 metabolic syndrome, 145–147, 146f,
146b
oral glucose tolerance test, 138 pancreas, anatomy of, 133f, 134 poor glycaemic control, long- term
consequences of, 145
Glucose (Continued)
sources, 132, 133f type 1 diabetes, 138–140, 146b type 2 diabetes, 143 in urine, 132–133
Glucose- dependent insulinotropic peptide
(GIP), 134 Glycaemic control, 145 Glycoproteins, 17–18 Glycosuria, 10 Goitre, 77f, 77, 78f Golgi apparatus, 5 Gonadotropin releasing hormone (GnRH), 8,
48, 94, 107–108 G- protein coupled receptor kinases (GPK),
20–21 G- protein coupled receptors (GPCRs),
18–19, 94 Graves disease, 84 Growth hormone (GH), 41, 43–44, 46–49, 158 Growth hormone binding protein
(GHBP), 46 Growth hormone receptor (GHR), 49 Growth hormone releasing hormone
(GHRH), 44, 45f Guanosine diphosphate (GDP), 18 Gut hormones, 168–169, 169t Gynaecomastia, 81, 123
H
Headaches, 35b Histocompatibility (HLA), 141b Homeostasis, 2 Hormone- dependent cancer in men, 98 Hormone replacement therapy (HRT),
126–127, 160
alternative therapies, 127–128 long- term HRT, 126–127
Hormones, 2–3
amino acids, 5, 5f antagonism, 10 binding proteins, 6–7, 7t catecholamines, 5–6, 6t chemical structures, 5–6 circulate, 17 definition, 2 growth, 22 hypothalamic hormones, 37 hypothalamus, 31 measurement of, 13b metabolism of, 6–8 miscellaneous
ageing, hormone replacement therapy
in, 166
age- related changes in, 166 appetite, hormonal control of, 169–171,
170f
autoimmune polyglandular
endocrinopathy, 171
blood pressure, 171–172, 172f–173f cytokines, 164–166 eicosanoids, 164–166, 165f
INDEX
179
INDEX
Hormones (Continued)
endocrinology, multiple organ disorders
in, 171 erythropoietin, 164 gut hormones, 168–169, 169t immune–endocrine interactions,
164–166 melatonin, 166–167, 167f multiple endocrine neoplasia (MEN),
171
peptide hormones, 3–5, 4f pituitary gland, anterior, 43–44, 46–49 posterior pituitary, 32 response elements, 25 secretion, 3–6, 4f, 8–10, 8f
diurnal variation, 8 endocrine axis, 9, 9f episodic secretion, 8 negative feedback, 9–10, 9f by placenta, 112 regulation of, 43–46, 43f, 44t set point regulation, 8–9
serum calcium, 153, 158 steroids, 5, 5f synergy, 10 synthesis, 3–6, 4f thyroid hormones, 5, 5f transport, 6–8 types of, 3–6
Human chorionic gonadotropin (hCG), 41,
112
Human leucocyte antigen (HLA),
138–139
Hypercalcaemia
disorders of, 158–159
treatment, 158, 159f vitamin D, 159
Hyperglycaemia, 142 Hypergonadotropic hypogonadism, 99 Hyperosmolar non- ketotic coma, 145 Hyperprolactinaemia, 110, 123 Hyperthyroidism, 84 Hypocalcaemia, disorders of, 159–160
parathyroid hormone (PTH) deficiency,
160
vitamin D deficiency, 159 Hypocretins, 37 Hypoglycaemia, 145 Hypoglycaemic coma, 142 Hypophyseal portal system., 31 Hypopituitarism, 50 Hypothalamic diabetes insipidus, 35 Hypothalamic insipidus, 35 Hypothalamic tumour
investigation, 31b
signs, 35b
symptoms, 35b Hypothalamo- pituitary- adrenal axis (HPA
axis), 40, 66 Hypothalamo–pituitary–testicular axis, 90 Hypothalamo–pituitary–thyroid axis, 81f Hypothalamus
development of, 31–32 hormones, 31, 37 investigation, 31b
Hypothyroidism
signs, 87f symptoms, 87f treatment, 86–87
I
IGF binding protein (IGFBP), 46–47 Imbalanced sex steroids
case history, 103b diagnosis, 106b fertility, 112b investigations, 109b treatment, 111b
Immune–endocrine interactions
cytokines, 165
eicosanoids, 165–166, 165f Inferior vena cava (IVC), 54f Inguinal canal, 90 Inguinal hernia, 90 Inherent tyrosine kinase activity, 22 Insulin, 22
blood, 135
deficiency, 138–140
gestational diabetes, 145
glucose, 136, 137f
glucose- stimulated insulin secretion, 136f
ketoacidosis, 139–140, 139f
metabolic effects of, 136b
metabolic syndrome, 145–147
poor glycaemic control, long- term
consequences of, 145 receptor, 136–137, 137f resistance, 137, 143 therapy, 141 type 1 diabetes mellitus. See Type 1
diabetes mellitus
Insulin- like growth factor- 1 (IGF- 1), 46–47 Insulin receptor substrate (IRS), 22, 137 Internal secretion, 2 Intracellular receptors, 24–25, 24f Intrinsic guanylyl cyclase activity, 23f Iodine, 79
deficiency hypothyroidism, 85–86
IVF treatment, 130
J
Janus- associated kinase- signal transducer
and activator of transcription (JAK-
STAT) pathway, 22, 48, 165
K
Ketoacidosis, 139–140, 139f Klinefelter syndrome, 99, 119
L
Lactation, 115, 115f Leydig cells, 91, 94, 98
Ligand
efficacy, 17 potency, 17
properties, 17 Lipid metabolism, 47 Lipophilic steroid, 5–6 Long- term contraception, 128–129, 129f Long- term HRT, 126–127 Low- density lipoproteins (LDL), 65 Luteinising hormone (LH), 26, 41, 94, 104,
120–121
M
Male contraceptive pill, 129 Male reproductive system
anabolic androgenic steroids (AASs), 99–100
androgens, therapeutic uses of, 99, 100f
disorders of, 98–99, 98f
primary hypogonadism, 99
secondary hypogonadism, 99 hormone- dependent cancer in men, 98 sperm counts, declining, 100 structure, 90, 90f testes. See Testes testosterone. See Testosterone
Melatonin, 8, 166–167, 167f Menarche, 120–122 Menopause
acute symptoms, 125b climacteric, 123–124 definition, 123–124 premature ovarian failure, 124 symptoms of, 124–126
Menstrual cycle, 107–110, 108f
disorders of, 110–111
hirsutism, 111b
hypothalamic causes, 110
pituitary causes, 110
polycystic ovarian syndrome (PCOS),
110–111, 111f
premature ovarian failure, 110 follicular phase, 108–109 LH surge, 109 luteal phase, 109–110 menstrual phase, 108 ovaries. See Ovaries ovulation, 109 proliferative phase, 108–109
Metabolic syndrome, 145–147, 146f, 146b
description, 147 diagnosis, 146–147, 146f growing problem, 145–147 treatment, 147
Metformin, 147 Mifepristone, 16 Mineralocorticoid (MR), 25 Mineralocorticoid excess, 73 Mitogen- activated protein kinases (MAPK), 22 Modern pregnancy testing kit, 113b Monoamine oxidase (MAO), 8, 56–57 Morning- after pill, 129 Multiple endocrine neoplasia (MEN), 171 Myxoedema, 86
180
N
Nephrogenic diabetes insipidus, 35–36 Nerve supply, 93 Neural regulation, 2 Neural system, 2 Neuroendocrine reflex, 32–33, 33f Neuro- hormones, 2–3 Neuropeptide kisspeptin, 120 Neurophysin, 32 Neurotransmitter, 2–3, 55 Non- insulin- dependent (NIDDM),
132, 143 Non- placental hormones, 113 Non- steroidal anti- inflammatory drugs
(NSAIDs), 166 Norepinephrine, 56 Nuclear hormone receptors, 24 Nuclei, 28–29
O
Obesity, 145–146 Octreotide, 49 Oestrogens, 98, 124, 153
cellular actions of, 104 metabolism of, 104 physiological actions of, 104–105
transport, 104 Old- fashioned pregnancy testing, 113b Oral contraceptive pill, 128 Oral glucose test, 45b–46b Oral glucose tolerance test, 138 Orexin, 37 Orexin A, 37 Orphan receptors, 25 Osteoclasts, 152 Osteomalacia, 160 Osteoporosis, 127, 160 Ovaries
activin, 106
androgen secretion by, 106
corpus albicans, 102
dehydroepiandrosterone (DHEA), 106
follicles, 102
follicular development stages, 103f
gonadotropins, 102
histology of, 102, 102f
hormonal regulation of, 107
hormones, 102
oestrogens, 102
progesterone, 102 inhibin, 106 menopause, 102 peptide hormones, 106 primary oocyte, 102 relaxin, 107
Ovulation, simple induction of, 129–130 Oxytocin, 32–33
P
Paget disease, 161
Pancreas
anatomy of, 133f, 134
endocrine, 134, 134t Panhypopituitarism, 50 Paracrine effect, 6 Parathyroid glands, 153 Parathyroid hormone (PTH), 153–155, 164
actions of, 154, 154f
parathyroid glands, 153
parathyroid hormone related peptide
(PTHrp), 154–155
secretion, 153–154, 154f Parathyroid hormone related peptide
(PTHrp), 14, 154–155 PEGylation, 49 Pendrin, 78–79 Peptide hormones, 3–5, 4f Peptides, 17–18 Peroxisome- proliferator activated protein
gamma (PPAR- gamma), 25–26, 144 Phaeochromocytoma, 55b
adrenal medulla, disorders of, 59 causes of, 59t diagnosis, 57b familial phaeochromocytoma, 59 treatment, 57b
Phenylethanolamine- N- methyltransferase
(PNMT), 56 Phosphatases, 20 Phosphate, 161 Phosphatidylinositol bisphosphate, 19 Phosphorylation, 20 Phyto- oestrogens, 105 Pituitary gland
hypothalamus, 31
development of, 31–32
impaired sexual function, 35b pituitary gland, anterior. See Pituitary
gland, anterior
pituitary gland, posterior. See Pituitary
gland, posterior Pituitary gland, anterior
acromegaly, 40b actions of, 46–48 beta endorphin, 42 blood, 46 carbohydrate metabolism, 47 disorders
oversecretion, 48–49 undersecretion, 50, 50f
growth hormone, 43–44, 46–49
receptors, 46
growth hormone releasing hormone
(GHRH), 44, 45f
hormones of, 41–42, 41f–42f hypopituitarism tests, 50–51
insufficient growth hormone secretion,
50–51
insulin- like growth factor- 1 (IGF- 1),
46–47
lipid metabolism, 47 metabolism, 47 prolactin, 43–44, 47–48
secretion regulation, 45
prolactinoma, 49–50
Pituitary gland, anterior (Continued)
protein metabolism, 47 regulation of hormone secretion, 43–46,
43f, 44t stress hormones, 46b structure of, 40f, 40–41, 40t, 41f–42f
Pituitary gland, posterior
hormones of, 32 neuroendocrine reflex, 32–33, 33f oxytocin, 32–33 vasopressin, 32, 33f
Placenta, 112 Plasma calcium, 157. See also Serum
calcium
Plasma osmolality, 34b Pocket- sized glucose monitors, 141–142 Polydipsia, 36 Polyuria, 36 Pregnancy
adrenocorticotropic hormone (ACTH), 113 binding proteins, 113 endocrine control of parturition, 115 foeto–placental unit, 112–113, 114f hormone secretion by the placenta, 112 lactation, 115, 115f modern pregnancy testing kit, 113b non- placental hormones, 113 old- fashioned pregnancy testing, 113b placenta, 112
Premature ovarian failure, 124 Pre- proinsulin, 134 PreproPTH, 153 Primary hyperparathyroidism, 150b
case history, 150b explanation, 158b investigations, 152b test results, 155b
Primary hypogonadism, 99 Progesterone
actions of, 106 definition, 105–106 metabolism of, 104 transport, 104
Progesterone (PR), 25 Prolactin (Prl), 41, 43–44, 47–48 Prolactinoma, 49–50 Pro- opiomelanocortin (POMC), 41 Prostacyclin, 166 Protein kinase A (PKA), 20, 20f Protein metabolism, 47 Psychogenic polydipsia, 36 Puberty, 96, 120–122
boys, 121, 121f delayed puberty. See Delayed puberty disorders, 122–123
gynaecomastia, 123
girls, 121–122, 121f
R
Radiological imaging, 13 Reactive hypoglycaemia
case history, 167b diagnosis, 169b–170b
INDEX
181
INDEX
Reactive hypoglycaemia (Continued)
investigation, 168b pathophysiology, 169b–170b
Receptor activator of NF- KB ligand
(RANKL), 152
Receptors
agonists, 16 androgens, 25f antagonists, 16 beta arrestin, 20–21 binding properties, 16–17, 16f cell- membrane receptors, 17–18 characteristics of, 16–17 class II receptors, 25–26, 25f class I receptors, 25, 25f cytokine receptors, 22 desensitisation, 20–21 disorders of, 26 dissociation constant (KD), 17, 17f dose–response effects, 16, 16f downregulation, 20–21 GPKs, 20–21 G- protein coupled receptors, 18–19 growth hormone, 22 guanosine diphosphate (GDP), 18 heat shock protein (HSP), 25f insulin, 22 intracellular receptors, 24–25, 24f ligand properties, 17 phosphatases, 20 protein kinases, 20–22 second messenger systems, 18–20 transcription, hormonal regulation of,
22–26 types of, 17–21 ubiquitination, 21
Renal threshold, 132–133 Replacement therapy, 35 Reproductive hormones, 118 Reproductive system
female. See Female reproductive system male. See Male reproductive system
Retinoic acid X receptor (RXR), 25–26, 82 Rhythm method, 128 Rickets, 160
S
Secondary hypogonadism, 99 Secondary thyroid failure, 10 Second messenger systems, 19–20
calcium signalling, 19–20, 20f cyclic adenosine monophosphate (cAMP),
19, 19f–20f phosphatidylinositol bisphosphate, 19, 20f
Selective oestrogen receptor modulators
(SERMs), 107b
Sella turcica, 31 Seminiferous tubules, 91–92, 92f Sertoli cells, 91–92, 95 Serum calcium
calcitonin, 161 hormones, 153, 158
Serum calcium (Continued)
primary hyperparathyroidism, 150b serum phosphate regulation, 161
sources of, 150, 150f Serum growth hormone, 45b–46b Serum phosphate regulation, 161 Sex hormone binding globulin (SHBG), 95,
104, 106 Sex steroids, 153 Sexual dysfunction, 127 Sinusoids, 54–55 Sodium- glucose linked transporter 2
(SGLT2), 144 Sodium- glucose linked transporter (SGLT1),
132 Spermatogenesis, 90, 92f, 93, 95 Spermatogonia, 91–92 Sperm counts, declining, 100 Sperm motility, 100 Splanchnic nerves, 55 Steroid biosynthesis, 63–65, 65t
ACTH, 66–67, 67f aldosterone, 67–68 congenital adrenal hyperplasia, 67b cortisol, 66, 66f–67f defects of, 64f, 65, 65t dehydroepiandrosterone (DHEA), 68 renin–angiotensin system, 67–68
Steroid hormones transport, blood, 68–71
adrenal androgens, actions of, 70–71 adrenal steroids, actions of, 68 aldosterone, physiological actions of, 69 cortisol, physiological actions of, 68–69
glucocorticoids, 69b Steroidogenesis, 63–65 Steroid- rich blood, 55 Steroids hormones, 5, 5f Stress hormones, 46b Sulphonylureas, 143–144 Suprachiasmatic nucleus (SCN), 8 Sympathetic ganglion, 55 Syndrome of inappropriate antidiuretic
hormone (SIADH), 36 Synergy, 10 Synthetic adrenocorticotropin, 12
T
T3, 79–81 Tachycardia, 85 Tertiary thyroid failure, 10 Testes
androgen production, 93, 93f definition, 90 inguinal hernia, 90 made up of, 91 nerve supply, 93 route of descent, 90, 91f seminiferous tubules, 91–92, 92f sertoli cells, 91–92 spermatogenesis, 92f, 93 temperature, 90 testicular blood, 93
Testes (Continued)
testicular function, hormonal control of,
94–95 control of spermatogenesis, 95 control of testosterone secretion, 94 leydig cell function, 94 sertoli cell function, 95
vasectomy, 93 Testicular blood, 93 Testicular function, hormonal control of,
94–95 control of spermatogenesis, 95 control of testosterone secretion, 94 leydig cell function, 94 sertoli cell function, 95
Testosterone, 119
actions of, 95–98 androgens, 97t
cellular actions of, 95, 96f
physiological actions of, 96–97, 96f oestrogens, 97, 97f replacement therapy, 99 secretion, 94 transport of blood, 95
Testosterone binding globulin (TeBG), 95 Tetrahydrogestrinone (THG), 99 Tetra- iodothyronine (T4), 78–79 Thiazolidinediones (TZD), 144 Thirst, 36 Thromboxane, 166 Thyroglobulin, 78–79 Thyroid follicles, 78 Thyroid function test, 81 Thyroid gland, 2
anatomy of, 76f, 77 blood, 77–81 control of thyroid function, 81–82, 81f depression, 86b disorders of
hyperthyroidism, 84
thyrotoxicosis, 84–85
thyrotoxicosis treatment, 85 goitre, 77f, 77, 78f hormones
cardiovascular effects, 83
cellular action of, 82, 82f, 83t
developmental effects, 83
effects of, 82–83
hypothyroidism treatment, 86–87
insufficiency in adults, 86–87
metabolic effects, 83
other effects of, 83
respiratory effects, 83
secretion, 83–85 hypothalamo–pituitary–thyroid axis, 81f iodine, 79 structure, 78, 78f synthesis of, 78–79, 80f T3, 79–81 thyroid function test, 81 thyroid hyposecretion
autoimmune thyroid disease, 86
causes of, 85–86
congenital hypothyroidism, 86
182
thyroid hyposecretion (Continued)
iodine deficiency hypothyroidism,
85–86 thyroxine, 79–81 thyroxine binding globulin (TBG), 79–81 weight loss. See Weight loss
Thyroid hormone binding globulin (THBG),
113
Thyroid hormone receptors (TR), 82 Thyroid hyposecretion
autoimmune thyroid disease, 86 causes of, 85–86 congenital hypothyroidism, 86 iodine deficiency hypothyroidism, 85–86
Thyroid stimulating hormone (TSH), 3–4, 26,
41, 77, 81–82, 113
Thyrotoxicosis, 84–85
treatment, 85
Thyrotropin releasing hormone (TRH), 3–4, 45 Thyroxine, 8, 79–81 Thyroxine binding globulin (TBG), 79–81 Transforming growth factor- (TGF- ) peptide
family, 106
Tri- iodothyronine (T3), 78–79 Tubercular lung tissue, 36 Type 1 diabetes mellitus, 138–140, 146b
case history, 138b complications of, 142
diabetic ketoacidosis, 142
hypoglycaemic coma, 142 diagnosis, 140b diet, 140–141 explanation, 141b glycaemic control, 142b insulin therapy, 141 investigations, 141b
Type 2 diabetes mellitus
complications, 145
hyperosmolar non- ketotic coma, 145
hypoglycaemia, 145 HONK, 143b management of, 143–144 non- insulin- dependent diabetes, 143 risk factors, 143t
U
Unexpected fracture
case history, 92b diagnosis, 99b examination, 98b investigation, 99b
treatment, 99b Urine, glucose in, 132–133 Urine testing, 13
V
Vanillylmandelic acid (VMA), 56–57 Vascular endothelium, 2 Vasectomy, 93, 128 Vasoactive intestinal polypeptide (VIP), 59 Vasopressin, 32, 33f
actions of, 34–35, 34t
blood pressure, 33
disorders of, 35–36
plasma osmolality, 31b, 33
posterior pituitary, 32, 33f
regulation of, 33–35
replacement therapy, 35
resistance, 35
secretion, 36
thirst, 36
V1 receptors, 34
V2 receptors, 34 Vitamin D, 25–26, 155–158, 156f
blood, 156 Vitamin D3
formation and structure of, 156f
sources and activation of, 156f
therapeutic uses of, 157–158 Vitamin D response elements (VDREs),
156–157 V1 receptors, 34 V2 receptors, 34
W
Water
balance, regulation, 36 intoxication, 36 resorption, vasopressin effect, 34
Weight loss
anatomy, 79b case history, 76b diagnosis, 82b investigations, 81b symptoms, 84b
treatment, 85b Wermer syndrome, 171 Wolffian ducts, 118, 118f
X
X chromosome, 95–96, 110, 119 X- linked recessive condition, 95–96
Y
Y chromosome, 118 Yellow body, 102
Z
Zeitgebers, 167 Zinc fingers, 24 Zollinger–Ellison syndrome, 168 Zona fasciculata, 62, 62f Zona glomerulosa, 62, 62f, 67–68 Zona reticularis, 62, 62f
INDEX
183
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