Pituitary sentence example
The pituitary also produces ACTH and growth hormone, which have significant metabolic effects.
Precocious Puberty Causes and Symptoms Puberty begins when the brain secretes a hormone that triggers the pituitary gland to release gonadotropins, which in turn stimulate the ovaries or testes to produce sex hormones.
The hormone ACTH is naturally produced by the body from the head hormone gland called the pituitary.
The pituitary gland is invaded with a slow growing cancer called an adenoma.
The groups of pituitary adenomas which fail to produce one or more hormones are called non-functioning pituitary adenomas.Advertisement
This continually growth is caused by the release of excess growth hormone (somatotrophin) due to growth hormone secreting pituitary adenomas.
The majority of large prolactin-secreting pituitary adenomas shrink in response to DA drug therapy and any visual loss will improve in most patients.
The release of CRH triggers the pituitary gland's discharge of adrenocorticotropic hormone, which in turn stimulates the adrenal gland to secrete cortisol.
If he had been contacted he might have considered pituitary apoplexy.
Oxytocin A hormone, produced by the pituitary gland, which stimulates contraction of the uterus.Advertisement
The pituitary gland regulates adrenal cortisol production by responding to the amount of cortisol production by responding to the amount of cortisol in the blood.
Granulomas in the hypothalamus or posterior pituitary can cause diabetes insipidus.
This paper will concentrate on basic physiology of the principle endocrine glands, the pituitary, thyroid, and adrenal glands.
By doing so the ovaries communicate back to the pituitary gland that the egg follicles have been stimulated and FSH production slows down.
The condition, pituitary giantism, makes growth continue after most people stop developing.Advertisement
The pituitary gland is a gland found at the back of our heads toward the bottom of the brain.
This hormone is secreted by the pituitary gland and monitored by thyrotropin-releasing hormone (TRH ), which is produced in the hypothalamus gland.
Growth hormone is synthesized in a transformed murine cell line that has been modified by the addition of the gene for pituitary growth hormone is synthesized in a transformed murine cell line that has been modified by the addition of the gene for pituitary growth hormone.
Luteinising hormone (LH) is produced by the pituitary gland in the brain.
They are already receiving full replacement with other deficient pituitary hormones.Advertisement
Growth hormone (GH) - A peptide hormone secreted by the anterior pituitary that stimulates body growth.
Within the brain, the hypothalamus produces gonadotrophin-releasing hormone (GnRH) which is secreted into the pituitary gland (1 ).
He studied pituitary function and in 1886 performed the first successful experimental hypophysectomy.
They are controlled by the pituitary gland, which is controlled by the hypothalamus.
Growth Hormone (GH) - A peptide hormone secreted by the anterior pituitary that stimulates body growth.Advertisement
There are 6 major hormones produced by the anterior pituitary, which can be grouped according to structure.
Nerve impulses from the hypothalamus stimulate the posterior pituitary to produce ADH when the osmotic pressure of the blood rises.
Hormonal effects can be caused either by damage to the pituitary gland itself or to the hypothalamus, which controls the pituitary.
Rarely, patients are affected by conditions that destroy the pituitary.
Iron is deposited in many parts of the body including the pituitary.
The anterior pituitary makes up 75% of the total weight of the pituitary.
Cells from part of the brain grow downwards to form the posterior pituitary.
The tumor may prevent the normal pituitary from being able to secrete the hormones that control menstruation and fertility.
Recipients of human pituitary derived extracts such as growth hormone or gonadotrophins.
Electron microscopy experiments have been carried out on sections of rat pituitary gland.
Of all the pituitary endocrine cell types the cells which produce the hormone prolactin are the most highly plastic cell population.
When present these are usually due to a small (2mm) tumor that is secreting excess prolactin in the pituitary gland.
The portal vessels run down the pituitary stalk (infundibulum) to arrive at the pituitary gland.
This effect is direct and not mediated by pituitary thyrotropin (thyroid stimulating hormone ).
There was concern about the use of brain, neural and lymphoid tissue and pituitary.
The amount of ADH secreted by the posterior pituitary is determined by sensors in the brain which monitor the concentration of the blood.
This effect is direct and not mediated by pituitary thyrotropin (thyroid stimulating hormone).
Some mothers, due to pituitary disorders, hormonal problems or other unexplained causes will not produce enough milk right from the start.
The pituitary gland is a pea-sized gland found at the base of the brain.
The pituitary gland found in the brain increases a follicle stimulating hormone known as FSH.
Your brain is releasing a hormone that travels to the pituitary gland where more hormones release.
Gonadotropin-releasing hormone is released by the hypothalamus in the brain, where it moves to the pituitary gland.
The endocrine system is made up of the thyroid gland, parathyroid gland, pituitary gland, the adrenal glands and part of the pancreas.
When progesterone levels rise, so does the pituitary gland's production of lutenizing hormone, and this triggers ovulation during which the eggs are released for fertilization.
Under abnormal conditions these cells affect skin, bone, and the pituitary gland as well as the lungs, intestines, liver, spleen, bone marrow, and brain.
Pituitary gland-The most important of the endocrine glands (glands that release hormones directly into the bloodstream), the pituitary is located at the base of the brain.
Human growth hormone (hGH) (somatotropin) is produced by somatotropes in the anterior pituitary gland.
Somatotropin (hGH) is secreted by somatotropes in the anterior pituitary gland.
Because of its critical role in producing hGH and other hormones, a dysfunctional pituitary gland will often lead to altered growth.
The somatotropin test also aids in documenting the excess hGH production responsible for gigantism or acromegaly, and confirms underactivity or overproduction of the pituitary gland (hypopituitarism or hyperpituitarism, respectively).
The somatomedin C test is usually ordered to help detect pituitary abnormalities, hGH deficiency, and acromegaly.
If such stimulation is unsuccessful, a malfunction of the anterior pituitary gland is likely.
This approach is believed to be more accurate and specific for hGH deficiency caused by the pituitary.
In a child with excessive hGH levels, failure of suppression indicates anterior pituitary dysfunction and confirms a diagnosis of gigantism (or acromegaly).
Gigantism-Excessive growth, especially in height, resulting from overproduction of growth hormone during childhood or adolescence by a pituitary tumor.
Untreated, the tumor eventually destroys the pituitary gland, resulting in death during early adulthood.
Normal menstrual periods are the result of proper functioning and synchronization of the hypothalamus, pituitary gland, and ovaries.
The hypothalamus also secretes hormones that regulate the pituitary gland.
The pituitary gland in turn produces hormones that stimulate the ovaries to secrete two hormones known as estradiol and progesterone.
The hypothalamus and pituitary may fail to produce enough hormone to stimulate the ovaries to produce their hormones.
In some cases the doctor may order an MRI to rule out tumors affecting the hypothalamus or pituitary gland.
Tumors of the hypothalamus and the pituitary gland or abnormalities of the reproductive organs usually require surgery.
Glandular therapy can assist in bringing about a balance in the glands involved in the reproductive cycle, including the hypothalmus, pituitary, thyroid, ovarian, and adrenal glands.
The word pituitary refers to the pituitary gland, which regulates the production of certain chemicals called hormones.
Therefore, pituitary dwarfism is decreased bodily growth due primarily to hormonal problems.
Pituitary dwarfism is caused by problems arising from the pituitary gland.
The pituitary gland, also called the hypophysis, is a gland at the base of the brain that produces many different hormones.
When the hypothalamus releases growth hormone-releasing hormone (GHRH), the anterior pituitary is stimulated to release growth hormone (GH).
When none of the hormones of the anterior pituitary are adequately produced, this is called panhypopituitarism.
A common form of pituitary dwarfism is due to deficiencies in the production of growth hormone (GH).
There appears to be no racial or ethnic component to pituitary dwarfism, but males seem to be afflicted more than females.
The symptom, however, that all children with pituitary dwarfism share is that they do not grow at the same rate as their peers.
Until 1985, growth hormone was obtained from the pituitary glands of human cadavers.
A careful balancing of all of the hormones produced by the pituitary gland is necessary for patients with panhypopituitarism, making this form of dwarfism complex and difficult to manage.
There is no known way to prevent pituitary dwarfism, although in some cases it may be caused by traumatic injury to the pituitary gland.
Engaging in safe behaviors may reduce the risk of injury-induced pituitary deficiencies.
Children with pituitary dwarfism are smaller than other children, but they are just as smart and can lead long, healthy lives.
It is important for parents not to expect less of their child with pituitary dwarfism simply because the child looks younger than he or she actually is.
Adrenocorticotropic hormone (ACTH)-Also called adrenocorticotropin or corticotropin, this hormone is produced by the pituitary gland to stimulate the adrenal cortex to release various corticosteroid hormones.
Deprivational dwarfism-A condition where emotional disturbances are associated with growth failure and abnormalities of pituitary function.
Follicle-stimulating hormone (FSH)-A pituitary hormone that in females stimulates the ovary to mature egg capsules (follicles) and in males stimulates sperm production.
Luteinizing hormone-A hormone secreted by the pituitary gland that regulates the menstrual cycle and triggers ovulation in females.
Thyroid-stimulating hormone (TSH)-A hormone produce by the pituitary gland that stimulates the thyroid gland to produce the hormones that regulate metabolism.
The four most common causes of dwarfism in children are achondroplasia, Turner syndrome, inadequate pituitary function (pituitary dwarfism), and lack of emotional or physical nurturance.
Pituitary dwarfism is a result of growth hormone deficiency.
There appears to be no racial or ethnic component to pituitary dwarfism, but males seem to be afflicted more often than females.
Growth can be impaired by conditions affecting the pituitary, thyroid, parathyroid, and adrenal glands (all part of the endocrine system).
Probably the best known of these conditions is growth hormone deficiency, which is associated with the pituitary and hypothalamus glands.
Pituitary dwarfism can be diagnosed with blood tests for growth hormones or MRI of the head.
Growth hormone for therapeutic purposes was originally derived from the pituitary glands of deceased persons.
An adult whose heart, kidneys, and pituitary gland are functioning properly would have to drink more than two gallons of water a day to develop water intoxication.
This variation is normal and is usually the result of imperfect coordination between the hypothalamus, the pituitary gland, and the ovaries.
Oligomenorrhea that occurs in adolescents is often caused by immaturity or lack of synchronization between the hypothalamus, pituitary gland, and ovaries.
The pituitary gland is then stimulated to produce hormones that affect growth and reproduction.
In a few cases the doctor may order an MRI to rule out tumors affecting the hypothalamus or pituitary gland.
Glandular therapy can assist in bringing about a balance in the glands involved in the reproductive cycle, including the hypothalamus, pituitary, thyroid, ovarian, and adrenal glands.
The parts of the body involved in the menstrual cycle include the uterus and cervix, the ovaries, fallopian tubes, the brain and pituitary gland, and the vagina.
Puberty is initiated by hormonal changes triggered by a part of the brain called the hypothalamus, which stimulates the pituitary gland, which in turn activates other glands as well.
Beginning as early as age eight in girls-and two years later, on average, in boys-the hypothalamus signals hormonal change that stimulates the pituitary.
In turn, the pituitary releases its own hormones called gonadotrophins that stimulate the gonads and adrenals.
If the pituitary output is inadequate, so will be the output from the gonads and adrenals.
By contrast, a normal pituitary overproduces if it senses there are not enough hormones in the circulation.
Acromegaly is a disease in which an abnormality in the pituitary gland leads to an oversecretion of growth hormone.
This chemical released from the pituitary gland is called growth hormone (GH).
The pituitary is a small gland located at the base of the brain, which releases certain hormones that are important to the functioning of other organs or body systems.
The pituitary hormones travel throughout the body and are involved in a large number of activities, including the regulation of growth and reproductive functions.
The cause of acromegaly can be traced to the pituitary's production of GH.
Under normal conditions, the pituitary receives input from another brain structure, the hypothalamus, located at the base of the brain.
This input from the hypothalamus regulates the pituitary's release of hormones.
For example, the hypothalamus produces growth hormone-releasing hormone (GHRH), which directs the pituitary to release GH.
Input from the hypothalamus should also direct the pituitary to stop releasing hormones.
In acromegaly, the pituitary continues to release GH and ignores signals from the hypothalamus.
When the pituitary refuses to stop producing GH, the levels of IGF-1 also reach abnormal peaks.
The most common cause of acromegaly and gigantism is the development of a noncancerous tumor within the pituitary, called a pituitary adenoma.
In the case of pituitary adenomas, the tumor itself is the source of the abnormal release of GH.
As the adenoma grows, it may disrupt other pituitary tissue, interfering with the release of other hormones.
Magnetic resonance imaging (MRI) is useful for viewing the pituitary gland and for identifying and locating an adenoma.
The first step in treatment of acromegaly is removal of all or part of the pituitary adenoma.
Some patients who cannot undergo surgery are treated with radiation therapy to the pituitary in an attempt to shrink the adenoma.
Radiating the pituitary may take up to ten years, however, and may also injure or destroy other normal parts of the pituitary.
Once a pituitary adenoma has been removed, radiotherapy and/or medication may be recommended to prevent a recurrence of the tumor.
Pituitary, thyroid, adrenals, ovaries, and testes are all part of the endocrine system.
In turn, the production of these hormones is controlled by thyroid-stimulating hormone (TSH) that is produced by the pituitary gland.
Giantism is treated by inhibiting the production of pituitary hormones.
Hypopituitarism can also be caused by damage to the pituitary gland.
They are closely controlled by the pituitary gland.
The pituitary hormones are the same for males and females, but the gonadal hormones are different.
For several reasons, the pituitary gland can fail to produce hormones.
The pituitary used to be removed to treat advanced breast or prostate cancer.
Sometimes the pituitary develops a tumor that destroys it.
Failure of the pituitary is called hypopituitarism and, of course, leaves the gonads with no stimulation to produce hormones.
In the case of the most common pituitary tumor, prolactinoma, there may be a milky breast discharge.
As of the early 2000s, there are accurate blood tests for most of the hormones in the body, including those from the pituitary and even some from the hypothalamus.
Tests may be done that check estrogen levels (women) and testosterone levels (men) as well as FSH levels and LH levels, the pituitary hormones that stimulate the gonads.
If pituitary disease is suspected, a magnetic resonance imaging (MRI) or computerized tomography (CT) scan of the brain may be done.
The anterior pituitary gland and the adrenal glands can also be affected.
It is associated with the pituitary gland, sensitivity and deep feeling.
Additionally, hormonal imbalances of the thyroid and pituitary glands can also affect your metabolism and require medical support.
Check with your doctor if you feel you suffer from disorders of the thyroid or pituitary glands.
The pituitary body probably subserves a like purpose.
And on the influence of these inconspicuous bodies and of the pituitary body in sustaining arterial blood pressures physiologists have thrown some important light.
In cases of tumor, most commonly craniopharyngioma (a tumor near the pituitary gland), children and adolescents may have neurological symptoms such as headaches, vomiting, and problems with vision.
Growth hormone deficiency is present at birth, but since the primary symptoms of pituitary dwarfism are height and growth at a reduced rate, the condition is not diagnosed until later in childhood.
Children with pituitary dwarfism may face thoughtless comments from others on occasion, and the parents' reaction to such comments can strongly determine how the child feels about himself or herself.
Acromegaly is a disorder in which the abnormal release of a particular chemical from the pituitary gland in the brain causes increased growth in bone and soft tissue, as well as a variety of other disturbances throughout the body.
Less often, hypothyroidism develops when the pituitary gland fails and does not release enough thyroid-stimulating hormone (TSH), which stimulates the thyroid to produce and secrete normal amounts of T4 and T3.