Chapter 6
A clinical approach to somatotropic axis Introduction The somatotropic axis is the second of two anabolic axes. It is the great fashioner of structure. It lengthens, widens, expands, and ultimately helps replicate the number of structural units. In function, it is the great furnisher of regular, steady energy for acute and chronic needs, both during and outside adaptation. It stands at the crossroad of endocrine function. It is the end of the first, turns it to the second loop, and then completes the second loop. In summary, the somatotropic axis plays a key role in the sequencing of catabolic and anabolic activity, first loop preparation, and second loop completion. The somatotropic axis has four unique features related to all these activities. First, prolactin (PL), a pituitary somatotropic hormone, has a thyrotropic hypothalamic hormone that stimulates it (TRH). It is the only hormone whose axial hypothalamic counterpart (somatostatin) inhibits it. In all other cases, hypothalamic hormones stimulate pituitary counterparts. Second, the somatotropic axis has three hypothalamic and two pituitary hormones, paired as such: GHRH (growth hormone-releasing hormone) stimulates GH (growth hormone), TRH (thyrotropin releasing hormone) stimulates PL (prolactin), somatostatin inhibits prolactin. Recall that the other anabolic axis, gonadotropic, has two pituitary but one hypothalamic hormone. In peripheral gonadotropic activity, progesterone serves as the competitive agonist-antagonist factor in regulating estrogens and androgens in both timing and duration of activity. In the somatotropic axis, PL stimulates insulin from the endocrine pancreas. Third, instead of a peripheral hormone antagonizing insulin, it is an intracellular effect stimulated by GH, namely insulin resistance, which maintains the competitive agonist-antagonist actions. Finally, rather than having two or three peripheral hormones, the somatotropic axis has the greatest number of peripheral hormones ranging from cellular growth factors (i.e., insulin, insulin like growth hormone, etc.) to regulators of digestion and nutrient extraction (i.e., vasoactive intestinal peptide, cholecystokinin, etc.). The Theory of Endobiogeny. https://doi.org/10.1016/B978-0-12-816964-3.00006-7 © 2019 Elsevier Inc. All rights reserved.
A brief review of somatotropic endocrine function The somatotropic axis manages nutrients, cell structure, cell energy, storage of energetic material, and progression of endocrine loops. ●
● ● ●
●
Nutrients: Extraction and processing: exogenous and endogenous sources, availability, distribution, timing of entry of nutrients Architecture: Growth factors Energy: Glucose and lipids for ATP production Storage: Carbohydrates as glycogen, lipids as adipocytes Loops: Starter energy before first loop, passage from first to second loop, completion of second loop
Somatostatin has central and peripheral actions. Its general function is as an inhibitor of anabolic hormones that ultimately is pro-anabolic. The true managers of peripheral somatotropic activity are the pituitary hormones: growth hormone (GH) and prolactin (PL). They have agonistantagonist function that is competitive and additive in nature. The chronologic relationship of GH and Prolactin is key to the regulation of both somatotropic function and endocrine progression throughout the two loops. GH activity is summarized in Table 6.1, Prolactin in Table 6.2. The peripheral hormones adapt the organism in its basal, immediate, and chronic demands. Insulin-like growth factor manages growth, adhesion, and expansion of cells. It serves as a barometer of nutritional integrity and somatotropic synchronization (Table 6.3). Glucagon participates in basal and adaptation states: it provides substrates for structural and functional energy (glucose, free fatty acids). It is a catabolic hormone in an anabolic axis, produced in Islet cells of the endocrine pancreas. It constantly functions to regulate glycemia, and the availability of both glucose and free fatty acids for cellular oxidation and ATP production (Table 6.4). Glucagon has an agonist-antagonist, competitive-additive relationship with insulin, similar to the relationship between growth hormone and prolactin. 123
124 The theory of endobiogeny
TABLE 6.1 Summary of growth hormone action by location and endobiogenic mechanism Location
Mechanism
Action
Comment
Central
Endocrinometabolic
Dreams
GHRH initiates, TRH affects vivacity of dreams
Peripheral
Endocrine (liver)
IGF production
IGF’s responsible for most effects attributed to GH on bone, muscle and cartilage
Endocrinometabolic (nonvital organs)
Insulin resistance
Ensures timing and productivity of GH as a distributor of nutrients by delaying time of glucose entry into cell
Endocrinometabolic (liver)
Glucose: gluconeogenesis, blocks hepatic uptake of glucose
Favors circulating glucose for second loop entry and completion of anabolism
Nutrient distribution
Lipids: lipolysis
Augments free fatty acids for nonglucose ATP production in first loop
Amino acids: uptake into cells
Prepares cells to produce enzymes, DNA when the cell enters a construction phase
Electrolytes: calcium, phosphorous, sodium
Calibrates quantitative entry from effects of catabolic cortico- and thyrotropic activity
Endocrinotissular
General plan of growth and shaping of all organs
Vertical growth of muscle, bone, cartilage, special tropism for liver and endocrine pancreatic integrity
Metabolic
Restoration, reparation of cellular elements
All classes and structures: glycolipids, proteoglycans, cell membrane, DNA integrity, etc.
GHRH, growth hormone releasing hormone; IGF, insulin like growth factors; TRH, thyrotropic releasing factor.
TABLE 6.2 Actions of prolactin by location Location
Action
Comment
Hypothalamus
CRH relaunching
Relaunches ACTH, re-adapts cortisol
Pancreas, endocrine
Insulin excretion
Helps close anabolic loop
General
Wide of structure
Suppresses apoptosis, increases proliferation of cells; when activity estrogens + progesterone, favors proliferation of cancer cells in breast, ovaries, uterus
Immunity: auto-defender of life
Inflammation, extravasation
Favors pus production
Vasculature: auto-sustainer of life
Angioneogenesis
Favors metastasis of tumors, especially breast and prostate
Mammary glands: allosustainer of life
Lactation: production and flow
Oxytocin stimulates let-down
TABLE 6.3 Actions and effects of insulin-like growth factor Action
Effect
Comment
Endocrinometabolic
Inhibits apoptosis Promotes oxidation
Oxidation favors increased ATP production, free radical production
Endocrinotissular
Lengthening of tissues and organs
Most targeted: bone, cartilage, muscle
Nutritional integrity
IGF-1 expression commensurate to mineral intake
Most beneficial: zinc, selenium, and magnesium
Longevity
Inversely correlated to IGF-1
Reduce caloric intake by 15%
Pathophysiology
Insufficient IGF-1
Failure to thrive in children
Excess IGF-1
Atherosclerosis, uterine fibroids, and tumors
A clinical approach to somatotropic axis Chapter | 6 125
TABLE 6.4 Actions of glucagon in management of glucose and lipids Metabolite
Action
Comment
Glucose
Basal glycemia: glycogenolysis, gluconeogenesis
Constant regulation of glycemia in moderate adjustments
Starter energya to initiate adaptation
Evaluate relative to adrenaline (rapid, large adjustments of glycemia): children: adrenaline > glucagon, adults: glucagon > adrenaline
Lipolysis
Beta-oxidation for ATP production
Lipids a
A starter engine is a noncombustion engine that starts the combustion engine so that it can run the car per the demands of the driver.
Insulin: Endocrine pancreas Insulin is the restorative hormone, counteracting catabolic actions of both loops, growth-promoting hormone par excellence. It is involved in the utilization, preservation, and storage of nutrients but has unique functions in the brain (Table 6.5).
Integrating the somatotropic axis First loop 1. Central: a. GHRH stimulates GH b. GH: i. Increases circulating free fatty acids ii. Increases uptake of minerals, amino acids iii. Stimulates hepatic IGF-1 excretion iv. Stimulates Prolactin (turn the loop, prepare for insulin) v. Installs insulin resistance (prevent early closing of anabolism by insulin) vi. Inhibits GHRH by classical feedback c. PL: Turns the loop
2. Peripheral: IGF-1 a. Initiates growth b. Prepares cell for insulin c. Inhibits GH by classical feedback Second loop 1. Central a. TRH i. Stimulates PL ii. Stimulates Insulin b. PL i. Inhibits GH, releases insulin resistance from insulin receptors ii. Stimulates Insulin 2. Peripheral a. Insulin i. Conserves carbohydrates, proteins and lipids ii. Provides substrates for ATP production iii. Stimulates growth of cell, finalizes all that was prepared preceding it iv. Closes the door of anabolism
TABLE 6.5 Conservative effects of insulin Substance/location
Utilization
Preservation
Storage
Carbohydrates
Glucose entry into cells
Inhibits glycogenolysis
Glycogenesis
Lipids
Free fatty acid entry into cells
Blocks lipolysis
Lipogenesis
Proteins
Blocks proteolysis
Blocks gluconeogenesis (from amino acids)
–
Electrolytes
Potassium entry into cells
Diminishes renal sodium excretion
–
Cell
–
Reduces autophagy of organelles
–
Cardiovascular
Vasodilator: improves microvascular flow for nutrient distribution
–
–
Brain
–
Synaptic plasticity
Memory: formation, consolidation, recall
126 The theory of endobiogeny
3. Central/Peripheral a. Somatostatin i. Inhibits all somatotropic hormones and central thyrotropic hormones that relaunch the somatotropic axis: 1. GHRH 2. PL 3. IGF-1 4. Insulin 5. TSH
Pathophysiology As with the gonadotropic axis, the somatotropic is most implicated in the structural formation and maintenance of the endoderm. This includes structures such as the liver, pancreas, and lungs. However, pathophysiologic conditions related to dysfunction of the somatotropic axis are not limited to this embryonic lineage, which refers to structural formation. It touches all tissues and all functions because of its role in structural activity and adaptation. Thus, imbalances related to the axis can be broadly divided into disorders structural integrity, structural adaptation, and function. The gonadotropic and somatotropic axis are typically implicated in structural disorders. In functional disorders, the two catabolic axes are implicated: corticotropic and thyrotropic. The somatotropic axis is also implicated in adaptation because of the role of glucagon which is why it is also implicated in disorders of adaptation, structuro-functional, and global (Table 6.6).
Symptoms related to the somatotropic axis Because the axis plays a role in so many fundamental aspects of structure, function, adaptation, and personality,
there are numerous symptoms reported by the patient or elicited by the physician that relate to this axis (Table 6.7).
Signs related to the somatotropic axis Signs related to the axis are more numerous than symptoms. The somatotropic axis plays a key role in formation of structure and function. One can observe temperament (Table 6.8) related to the axis. On examination, one can look for signs related to the skin (Table 6.9), head (Table 6.10), mouth (Table 6.11), chest and breasts (Table 6.12), abdomen (Table 6.13), back and skeletal system (6.14).
Biology of function indexes related to the somatotropic axis The greatest number of hormones and varieties of actions related to metabolism are within the somatotropic axis. It is no surprise then that the indexes of this axis are the most numerous of those of the four endocrine axes. The indexes are drawn from numerous biomarkers and indexes. Chief among them are osteocalcin1–5 and alkaline phosphatase bone isoenzymes,6–8 both biomarkers derived from bone. The bone serves as an indicator of global metabolism and these biomarkers are related to global intracellular function (The Theory of Endobiogeny, Volume 1, Chapter 15).7–9 In turn, they are both related to growth hormone activity.7 In addition to these two biomarkers, TSH, a pro-anabolic factor that happens to stimulate the thyroid gland, is also key. The higher the serum TSH, the more anabolic activity of the somatotropic axis tends to be at the level of global management (Tables 6.15–6.17). The inverse will be true for intracellular functions such as oxidation of glucose and mitochondrial function. There is a dialectic between osteocalcin
TABLE 6.6 Pathophysiology related to the somatotropic axis Category
Subcategory
Example
Structural adaptation
Adenosis
Polyps
Cysts
Breast, ovary, kidney, brain, pancreas, ganglion, etc.
Fibroids
Leiomyoma of uterus
Hyperplasia
Cancer, obesity
Hypertrophy
Cancer, obesity, tonsil hypertrophy
Lipomas
Lipomas
Cicatrization
Keloids, delayed wound healing
Cellular metabolism
Diabetes, hypoglycemia
Neurologic metabolism
Multiple sclerosis, Alzheimer’s disease, Parkinson’s disease, sphingolipidosis
Inflammation
General fragilization of terrain
Functional adaptation
A clinical approach to somatotropic axis Chapter | 6 127
TABLE 6.7 Symptoms related to the somatotropic axis by region Category
Finding
Factor
State
Dermatologic
Purulent acne
Prolactin
Hyperfunctioning
Eczema
Pancreas
Oversolicited
ENT
Recurrent sinusitis, tonsil infections
Pancreas
Oversolicited
Breast
Breast milk, abundant postpartum
Prolactin
Strong
Perimenstrual lactation
Prolactin
Excessive
Increased appetite
Insulin
Predominant
Dislike of fruit
Insulin
Excessive
With low insulin resistance
Hypoglycemia
Insulin
Hyperfunctioning
with low insulin resistance; may present as hyperglycemia on fasting measurement with normal HgA1c
Bloating
Pancreas
Congested
Chronic gastritis
Pancreas
Congested
Anal fissures
Pancreas
Congested
Hemorrhoids
Pancreas
Congested
Menstrual cycle, irregular
Prolactin
Insufficient
Libido, strong during luteal phase
Prolactin
Strong
Menstrual cycle blocked
Prolactin
Excessive or hyperfunctioning
Amenorrhea
Prolactin
Excessive or hyperfunctioning
General feeling of coldness
Prolactin
Excessive and predominant
General fatigue
Prolactin
Insufficient
In corticotropic relaunching
Weight gain
Prolactin
Insufficient or excessive
In corticotropic relaunching
Diabetes
Insulin
Diminished function
Typically, hypersecreted; function is diminished in glucose delivery but hyperfunctioning in lipid management
Weight gain
Insulin
Diminished function
Typically, hypersecreted; function is diminished in glucose delivery but hyperfunctioning in lipid management
Bone
Osteoporosis
Prolactin
Excessive
Favoring inflammation and osteoclasty
Oncology
Angioneogenesis and cancer growth
Prolactin
Hyperfunctioning
Rheumatology
Autoimmunity: polyarthritis
Prolactin
Hyperfunctioning
Gastrointestinal
Genitourinary
Metabolic
Comment
Correlate with strong FSH and TSH with latent hypothyroidism
In conjunction with TRH and general central hyperthyroidism and typically prolonged relaunching of corticotropic axis and cortisol
TABLE 6.8 Signs of temperament related to the somatotropic axis Quality
Finding
Factor
Activity
Comment
External
Social tendency
Growth hormone
Prominent
Desire to gather people for their mutual benefit
External
Fear
Prolactin
Excessive
Correlate with strong central alpha
Internal
Poor adaptation to stress
Prolactin
Hyperfunctioning
Evaluate for signs of weak cortisol, weak ACTH
Internal
Maternal feeling
Prolactin
Prominent
Evaluate for signs of strong estrogen, strong oxytocin (erect nipple)
Internal
Lack of maternal feeling
Prolactin
Ineffectual
Evaluate for signs of weak cortisol, weak ACTH
TABLE 6.9 Dermatologic signs related to the somatotropic axis Quality
Finding
Factor
Activity
Comment
Subcutaneous tissue
Infiltrated, dense, woody
Prolactin
Prominent
Correlate with thyroid function and lymphatic congestion
Acne
Pus
Prolactin
Hyperfunctioning
Freckles
Present
Prolactin
Prominent
An oversolicitation of weak or below-average adrenals, with peripheral blockage of MSH
Furuncle
Present
Prolactin
Excessive
A deep folliculitis
Keratosis
Present
GH
Hyperfunctioning
With hyperandrogenism that relaunches FSH, excess estrogen + latent hypothyroidism: elevated TSH + peripheral thyroid insufficiency
Scar
Pruritic
GH
Hyperfunctioning
Skin color
Pale, milky
Prolactin
Prominent and hyperfunctioning
Nail thickness
Thick and strong
GH
Predominant
Nail deformity
Pitting
GH
Overfunctioning
Can also be sign poor hepatic absorption of nutrients (correlate with scalloped tongue)
TABLE 6.10 Signs of the head related to the somatotropic axis Quality
Finding
Factor
Activity
Hair
Ability to grow long
GH
Strong
Brow
Prominent
GH
Prominent
Postpubertal GH expression; when it is stimulated by TRH, the number of GH receptors is increased
Eyelashes
Thick, overlapping
GH
Prominent
Arises from an appeal of FSH to GH; in children and women, because they have fewer adrenal androgens, the effects of GH are more pronounced, hence the thicker eyelashes
Thinly spaced
GH
Not prominent
Insufficient stimulation of intracellular growth factors by FSH
Polyp
GH
Hyperfunctioning
Implies elevated insulin activity
Length of osseous portion
Insulin
Prominent
Correlate with strong thyroid and/or strong cortisol activity; increased metabolic activity demands a longer period of respiration, which requires a larger antechamber for the nose
Length of cartilaginous portion
GH
Prominent
Reflects delayed end of growth; correlate to strong cortisol, weak somatostatin, weak thyroid activity, elevated insulin resistance and other factors
Bulbous
GH
Excessive
GH adapted to parasympathetic insufficiency in the face of strong cortisol
Nose
Comment
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TABLE 6.11 Signs of the mouth related to the somatotropic axis Part
Quality
Finding
Factor
Activity
Comment
Lips
Size
Full, thick
Pancreas
Congested
Implies elevated para
Mucosa, oral
Ulceration
Aphthous ulcer
GH
Hyperfunctioning
Teeth
Spacing
Widely spaced
GH
Strong
Tongue
Fissures
Fissures
GH
Hyperfunctioning
Tongue
Size
Large, thick, with dental impression
Growth hormone
Excessive
Growth hormone compensation in the tissular nutrition activity to compensate for hypothyroidism; GH congests the splanchnic circulation to augment nutrient absorption, which leads to glossal edema
Uvula
Shape
Bifid
Somatotropic
Excessive
Growth factors > antigrowth, resulting in a TSH relaunching of the thyroid (hyperthyroid state), resulting in strong ACTH/ LH to maintain strong TSH stimulation of the thyroid
Tonsils
Size
Hypertrophy
Pancreas
Congested
Congestion, pancreas
Tonsils
Color
Erythema
Pancreas
Congested
Congestion, pancreas
Tonsils
Coating
Coating, white
Colon
Congested
Congestion, colon
Postpubertal GH expression
TABLE 6.12 Signs of the chest and breast related to the somatotropic axis Part
Quality
Finding
Factor
Activity
Comment
Sternum
Orientation
Convex
GH
Hyperfunctioning
Correlate with PTH
Breast
General
Underdeveloped
Prolactin
Diminished in structure
Size
Voluminous and dense
Prolactin
Prominent
Erection
Erect
Prolactin
Hyperfunctioning
Size
Large
Prolactin
Prominent
Duct
Expression
Prolactin
Excessive
Nipple
Often voluminous; cause is prolactin, consequence is elevated insulin/ weak insulin resistance and strong estrogen and androgens
May also be hyperfunctioning
TABLE 6.13 Signs of the abdomen related to the somatotropic axis Part
Quality
Finding
Factor
Activity
Comment
General
Proximal
Adiposity, doughy
Insulin
Excessive and typically reactive and hyperfunctioning
Correlate with elevated cortisol and altered insulin resistance
Pancreas
Mid-point between umbilicus and xyphoid
Pain on palpation
Pancreas
Congestion
Congestion, pancreas
Pancreas
Medial-right from umbilicus
Pain on palpation
Pancreas
Exocrine congestion
Congestion, pancreas, exocrine
Pancreas
Medial-left from umbilicus
Pain on palpation
Pancreas
Endocrine overtaxed
Congestion, pancreas, endocrine
Colon
Descending, distal
Pain on palpation
GH
Oversoliciting
TABLE 6.14 Signs of the back, extremities, and bones related to the somatotropic axis Part
Quality
Finding
Factor
Activity
Comment
Scapula, right
Inferior-medial, T6-7
Pain on palpation
Liver
Congested
Congestion, liver
Scapula, left
Inferior-medial, T7-T8
Pain on palpation
TSH, PL
Oversoliciting
Congestion, colon, transverse and descending
T7-T10
Paraspinal
Pain on palpation
Endocrine pancreas
Congested
Chronic congestion
Hand
Dorsum
Edematous
Prolactin
Hyperfunctioning
Knee, right
Thickness
Thick knee
FSH-TSH-GH
Overfunctioning
Foot
Shape
Hallux valgus (bunion)
GH
Excessive
Foot
Dorsum
Edematous
Prolactin
Hyperfunctioning
Foot
Arch
Flat
Prolactin
Predominant, likely excessive
Bone
Width
Wide
Prolactin
Prominent
Bone
Length
Long
GH
Prominent
Postpubertal
TABLE 6.15 Indexes assessing central somatotropic activity Relationship Index
Definition
Import
Direct
Inverse
Correlations
GH growth score
It calculates the level that results from the endocrinometabolic activity of growth hormone. By extension, it evaluates the role played by the somatotropic axis in the general adaptation syndrome and in the summoning and distribution of structural and functional energy
High: increased utilization of nutrients, risk of adenoidal growths Low: risk of somatotropic desynchronization due to a hyperalpha and/or central hyperthyroid activity
Growth score
Growth score corrected
Antigrowth index Adenosis index
Prolactin
It expresses the level of prolactin activity. It witnesses the level of solicitation of the general adaptation syndrome of Endobiogeny and its systematized modules
High: prolactin is active in turning the first loop in order to relaunch cortisol Low: prolactin is either diminished by central somatostatin and/or not required due to the quality of cortisol activity
Somatostatin
Growth hormone index
High: serum TSH, cortisol index Low: dopamine activity, cortisol index
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TABLE 6.16 Indexes assessing peripheral somatotropic activity Relationship Index
Definition
Import
Direct
Inverse
Somatostatin
It expresses the level of activity of somatostatin; indirectly it witnesses the relative level of activity of the exocrine pancreas
High: exocrine pancreas oversolicited and contributing to disorders of excess nutrients and hypertrophic growth Low: insufficient exocrine pancreas activity, somatostatin allows for prolonged endocrine activity and hyperplastic growth
Antigrowth index
Cortisol
Insulin
It measures the level of functional endocrinometabolic activity of the insulin
High: hyperinsulinism, risk of somatotropic desynchronization Low: hyperinsulinism due to insufficient membrane sensitivity
Catabolism/ anabolism Cortisol
Insulin resistance
It measures the level of inhibition of insulin at membrane level, independently of the temporary inhibition linked to adaptation syndrome
Low: organism may be compromised in distribution of glucose to vital organs High: favors prolonged first loop activity, risk of nourishment of vital organs at expense of other organs and tissues
Growth index corrected
It expresses the intracellular activity of growth factors
It evaluates the role of IGF-1 and other growth factors
Alkaline phosphatase bone isoenzyme
Correlations
Insulin resistance Redox Harmful free radicals Insulin Cortisol
Redox Harmful free radicals
Osteocalcin
Antigrowth, demyelization, membrane expansion
TABLE 6.17 Indexes assessing general metabolic effects of somatotropic hormones Relationship Index
Definition
Import
Direct
Inverse
Correlations
Catabolism
It measures the level of catabolic activity of the organism
Catabolism nourishes anabolism
Thyroid index
Adrenal cortex index
Genitothyroid Catabolismanabolism
Anabolism
It measures the level of anabolic activity of the organism
Anabolism ensures the restoration of the organism
Catabolism
Catabolismanabolism
Metabolic yield
It measures the overall metabolism rate of the organism
It expresses the general degree of efficacy of the organisms be it in its level of production or repartitioning
Catabolism, anabolism
Ischemia, membrane fracture
Ischemia
It measures the level of tissular congestion relative to the cell metabolic activity
Demyelination index corrected
It expresses the relative level of adaptability of the energeticometabolic response of insulin in its chronologic rapport to that of the endocrine activity of growth hormone
Adenosis
It measures the degree of relative activity of endocrine factors propitious for hyperplasia
Bone remodeling
Metabolic yield
Splanchnic congestion
High: desynchronization of somatotropic activity with insulin preceding growth factors
Insulin index
Growth index corrected
Amylosis Somatostatin
High: it captures all the events that solicit an organ to augment its yield, its rate of production and its volume. It favors a terrain for all adenoidal growths
Osteocalcin
Ischemia index, TRH/ TSH index
132 The theory of endobiogeny
and TSH reflected in the indexes, as they vary inversely with each other.6, 10, 11 The lower the osteocalcin, the greater intracellular metabolism tends to be for a given serum TSH. The prolactin index is currently the only strictly central somatotropic index in the biology of functions (Table 6.15). Dr. Duraffourd created it to evaluate how prolactin plays a role in solicitation of the adaptation syndrome and its role in turning the first loop and by extension how effectively somatostatin is able to downregulate prolactin at the end of the second loop. The GH (growth hormone) growth score does not evaluate the endocrine function of GH with regard to production of insulinlike growth factor 1 (IGF-1) in the liver. It evaluates the role of GH in the timing and distribution of nutrients, which is an endocrinometabolic activity. The index is low in disorders of somatotropic desynchronization such as Crohn’s disease, multiple sclerosis, chronic fatigue syndrome, and fibromyalgia. It is elevated in disorders of hypertrophy and hyperplasia such as adenoidal growth such as of the breast or prostate and in diabetes mellitus type two. It is normally several fold elevated during normal pediatric growth. The somatostatin index (Table 6.16 and The Theory of Endobiogeny, Volume 2, Chapter 8) is evaluating peripheral somatostatin activity and by extension central activity is inferred. There are a number of indexes that evaluate the function of strictly peripheral somatotropic activity related to distribution of nutrients. The activity of glucagon from alpha-islet cells of the endocrine pancreas is discussed under the discussion of indexes related to the autonomic nervous system, because of its role in adaptation (The Theory of Endobiogeny, Volume 2, Chapter 1). We discuss here four key indexes. The first is somatostatin, excreted from delta-islet cells of the endocrine pancreas and other areas of the gastrointestinal tract. Strictly speaking, the index evaluates peripheral somatostatin activity and its role in ending growth.12–15 This occurs in two ways: installing an antigrowth milieu, and inhibiting excretion of digestive enzymes. Thus, the index evaluates the actions of somatostatin on the exocrine pancreas. Cortisol inhibits excretion of digestive enzymes but also inhibits somatostain.16–19 The index effectively evaluates the relative role of somatostatin vs cortisol and the competency of the exocrine pancreas. Somatostatin ends exocrine pancreas activity because it is prolonged or excessive. Cortisol inhibits it, diminishing the exocrine pancreas’ ability to play its proper role in nutrient extraction and all that that implies. The evaluation of beta-islet cell endocrine pancreas activity is through the insulin index (Table 6.16). The insulin resistance index, technically speaking, is an evaluation of the intracellular, inner membrane response to insulin activity on the outer portion of the membrane. It is included here to complete the arc of activity within the pancreas. Finally, there are indexes evaluating the role of growth and antigrowth factors. Here we discuss the growth index corrected. It corrects the evaluation of growth hormone’s metabolic
effects on cellular function to account for the role of other intracellular growth factors. There are numerous indexes evaluating a general metabolic activity regulated by the somatotropic axis. The catabolism/anabolism index is discussed with the indexes of the corticotropic axis (The Theory of Endobiogeny, Volume 2, Chapter 2). That index is evaluating the relative predominance of catabolism in relationship to that of anabolism. In the somatotropic axis we have the quantitative estimation of catabolism and anabolism individually (Table 6.17). The catabolism index is formed by the ratio of thyroid metabolic activity in relationship to that of global adrenal cortex activity. Peripheral thyroid hormone activity favors catabolism, especially T4. Adrenal cortex activity, particularly the anabolic hormones, if excessive, will try to initiate anabolism before catabolism is completed. This diminishes catabolic achievement. Since catabolism feeds anabolism according to the theory of Endobiogeny, it will diminish anabolic achievement as well (The Theory of Endobiogeny, Volume 1, Chapter 6). The anabolism index contains the catabolism index in its numerator. The greater the rate of catabolism, the greater the rate of material presented for anabolism will be. The metabolic yield is simply the sum effects of both catabolism and anabolism. The demyelination index evaluates the risk of loss of the myelin sheath due to somatotropic desynchronization. This index is particularly helpful evaluating symptoms of neuropathy and chronic pain. The adenosis index evaluates the risk of adenoidal growth, which is a type of hyperplastic growth. Hyperplasia is a growth in the number of cells. It reflects a thyro-somatotropic relationship based in a latent or expressed hypothyroidism in the face of augmented somatotropic growth activity. Cells and tissues have an intrinsic metabolism that is regulated by assessment of intrinsic needs. Because they are situated in a global environment, the endocrine system adapts the intrinsic function to the needs of regional or global metabolism. Of all the axes, the somatotropic influenced by TSH is the most influential. The indexes discussed in Table 6.17 a general indication of the direction and magnitude of growth. There are consequences to this that refer to the method in which the cell obtains nutrients and electrolytes, and the degree to which they are oxidized or utilized in some other fashion. The indexes in Table 6.18 discuss these activities. Active cell permeability refers to the transport of substances into the cell through pores and channels in an active manner, meaning with the use of ATP to drive movement against its gradient. Passive permeability refers to the diffusion of substances or their movement down a concentration gradient. It is proportional to the membrane fluidity of the cell membrane20 and typically refers to the movement of small, nonpolar molecules.21 This distinction is significant because only the first method can be regulated. The second cannot. In states of hypertrophy or hyperplasia, one
A clinical approach to somatotropic axis Chapter | 6 133
TABLE 6.18 Indexes assessing cellular metabolic activity as regulated by somatotropic hormones Relationship Index
Definition
Import
Direct
Inverse
Correlations
Active cell permeability
It measures the degree of dynamic activity of cross-membrane permeability
High: favors first loop nutrition via membranebound channels
TSH
Insulin
Somatostatin
Passive cell permeability
It measures the degree of strictly osmotic cross-membrane permeability
Low: favors insufficient membrane fluidity
Necrosis; adaptation permissivity
No denominator
Redox
it measures the global oxidoreduction activity of the organism
Low: favors impaired response to microbial infections
Insulin index
Somatostatin index
Noxious free radicals
it measures the global rate of circulating free radicals
Pro-amyloid index
It measures the level of intra-cell hypometabolism. By extension, it evaluates the degree of cellular respiratory insufficiency and the degree of nutritional insufficiency
High: favors mitochondrial insufficiency
wishes to regulate the rate and magnitude of nutrient entry. Disorders such as diabetes will have elevated active permeability and diminished passive permeability. In this case, the use of a higher protein, lower carbohydrate diet, will prove more beneficial in our experience. In disorders such as chronic fatigue syndrome and neuropathy, the inverse is found: too much passive diffusion and insufficient active diffusion. The cell membrane is too fluid. Anecdotally, we have observed that a whole grain, high fiber diet with fish or vegetarian proteins is more corrective of this situation. Redox is the sum of reduction and oxidation of glucose and lipids for ATP production. It is the consequence of the quality of insulin activity, somatostatin, and membrane permeability. Excessive redox favors inflammation and free radicals, both beneficial and harmful.22 Insufficient redox can play a role in compromised immunity, or, the reliance on ketones and other substances for energy. It increases the risk of mitochondrial insufficiency, reflected in the proamyloid index. The mitochondrion plays a key role in cell health and nucleus regulation.23
Conclusions The somatotropic axis has many levels of function. It is a fashioner of structure in its material crystallization. It is a regulator of structural activity of the cell related to its intrinsic maintenance of its material structure. The axis regulates the structuro-functional adaptation of cellular activity and its participation in functional adaptation. The axis plays a role in
Oxidoreduction index
DNA fracture
Insulin resistance
Reduction index
the entire ecology of metabolism in its general sense of the rate of function and the particular sense of nutrient apportionment, distribution and timing of entry and utilization. There are many aspects of somatotropic function that can be determined by history, examination, and biology of functions. The axis plays a role in disorders ranging from cancer to chronic fatigue, from diabetes to multiple sclerosis. A proper assessment of somatotropic function allows from a regulation of disorders of structure, adaptation, and metabolism.
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