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Endocrinology

Endocrinology (part of the Department of Endocrinology and Diabetology) is a medical speciality that deals with the body’s hormonal systems. The endocrine system is the network of glands and organs in the body that control various biological functions. This system releases hormones into the bloodstream, from where they travel to different parts of the body and affect their functions.

HORMONAL DISEASES

Treatment of disorders affecting the hormones secreted by various glands: pituitary, thyroid, adrenal, etc.

The term “hormonal disorders” refers to any disease caused by abnormal hormone production. Hormones are chemical messengers secreted by endocrine glands throughout the body. They control many processes in the body, including digestion, metabolism, growth and reproduction.

Hormonal disorders can be caused by over- or underproduction of a particular hormone or combination of hormones. Hormonal imbalances can cause a wide range of symptoms, including tiredness, weakness and weight gain or loss.

Endocrinologie et diabétologie, les maladies hormonales
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THYROID DISEASES

Management of thyroid conditions such as growth disorders, hypothyroidism and hyperthyroidism.

Thyroid disorders are a diverse family of conditions that affect the thyroid gland and its hormones. The thyroid is a small, butterfly-shaped gland located in the front of the neck. It produces thyroid hormone, which controls the body’s use of energy, whether it is stored or burned.

The thyroid produces two main hormones: triiodothyronine (T3) and thyroxine (T4). These hormones circulate in the blood and reach all the body’s tissues. T3 and T4 regulate metabolism and growth, among other functions.

Thyroid disease (a condition treated in our Endocrinology and Diabetology department) can result from over- or under-activity of the thyroid gland (hyperthyroidism/hypothyroidism).

Thyroid hormone production may be excessive or insufficient, leading to symptoms such as weight changes, hair loss, constipation, muscle pain and weakness, heart palpitations, fatigue, high blood pressure, increased sweating, sensitivity to heat and cold, irritability and depression.

les maladies de la Thyroïde
ADDITIONAL
INFORMATION

What are the adrenal glands?

The adrenal gland is a small, triangular-shaped organ located on top of the kidneys. It is responsible for producing hormones that regulate various bodily functions such as metabolism, blood pressure, and stress response.

One of the main hormones produced by the adrenal gland is cortisol, commonly known as the “stress hormone.” When we experience stress or danger, our body releases cortisol to help us respond appropriately. However, chronic stress can lead to overproduction of cortisol which can have negative effects on our health.

In addition to cortisol, the adrenal gland also produces adrenaline (also known as epinephrine) which helps prepare our body for physical activity or “fight or flight” response. This hormone increases heart rate and blood flow to muscles in order to provide energy during stressful situations.

Another important function of the adrenal gland is to regulate blood pressure. The hormone aldosterone helps control the balance of salt and water in our body, which affects blood volume and ultimately, blood pressure.

The adrenal gland also plays a significant role in our metabolism. The hormones produced by this gland help regulate the breakdown of fats, proteins, and carbohydrates for energy production.

Overall, the adrenal gland is a vital part of our endocrine system that helps us respond to stress, maintain proper blood pressure, and regulate metabolism. 

What is the hypothalamus?

The hypothalamus is a small but powerful part of the brain that plays a crucial role in regulating many bodily functions. It is located just below the thalamus and above the pituitary gland, two other key structures in the brain.

One of the main functions of the hypothalamus is to control the body’s hormone production. This is achieved through its communication with the pituitary gland, which acts as a “master gland” and releases hormones that regulate various bodily processes such as metabolism, growth, and reproduction.

In addition to hormone regulation, the hypothalamus also helps to maintain homeostasis in the body by controlling behaviors such as hunger, thirst, and sleep. It receives information from various parts of the body and responds by releasing certain hormones or triggering certain behaviors to keep the body in balance.

Furthermore, the hypothalamus is responsible for regulating the autonomic nervous system, which controls involuntary functions like heart rate and digestion. It also plays a role in emotional responses and behavior through its connections with other brain regions.

Overall, the hypothalamus serves as a vital link between the nervous and endocrine systems, playing a crucial role in maintaining overall bodily function and balance. Any disruptions or dysfunction in this small but powerful structure can lead to various health issues and imbalances. Therefore, understanding the importance of the hypothalamus is essential for maintaining optimal health.

Pathologies associated with endocrinology and diabetology

We present to you some articles relating to pathologies treated in our Mediterranean clinic, with an effective and efficient medical and paramedical team.

Turner syndrome is a genetic disorder that affects girls and women. It is caused by the presence of a complete or partial X chromosome (45, X) in each cell.

The main characteristics of Turner syndrome are short stature, a palmate neck, large breasts with widely spaced nipples and a low hairline at the back of the neck. Other characteristics include:

Most women with Turner syndrome have normal intelligence. They may have learning difficulties with maths and grammar.

Turner syndrome can affect the heart, kidneys, bones and other organs. It can also cause hearing loss, congenital heart disease, and other medical problems.

Treatment for Turner syndrome focuses on managing the complications associated with the condition. Some treatments may include medication or surgery.

Turner syndrome is often not diagnosed until the teenager is very small or has problems with their menstrual cycle.

Some people with Turner syndrome develop learning difficulties and social problems, but others do not. Most people with Turner syndrome are infertile and (impaired fecundity) cannot carry a child to term.

Scurvy is a disease caused by vitamin C deficiency. It is characterised by weakness, anaemia, spongy gums and bleeding under the skin and inside the body.

Vitamin C is needed for the formation of collagen, which plays an important role in wound healing. A person with scurvy has poorly healed wounds and may be extremely tired.

Scurvy was once a common problem among sailors who spent long periods at sea without fresh fruit and vegetables in their diet. Nowadays it is rare because most people have access to a diet that includes adequate amounts of vitamin C-rich foods.

Symptoms of scurvy include:

  • Tiredness, lethargy and apathy;
  • Pale skin;
  • Gum disease, with swollen, sensitive gums that bleed easily;
  • Loosening and loss of teeth;
  • Muscle pain and weakness (myalgia);
  • anaemia due to blood vessel damage.

Graves’ disease is an autoimmune disorder that occurs when the immune system attacks the thyroid gland, causing hyperthyroidism. Graves’ disease is one of the most common causes of hyperthyroidism.

Graves’ disease often starts with a goiter, an enlarged thyroid gland in the neck. The goiter is usually painless and may remain invisible for some time.

Symptoms of Graves’ disease:

The most common symptoms of Graves’ disease are:

  • Weight loss despite increased appetite.
  • Feeling hot all the time, even when others are cold.
  • Tremors in the arms and legs (a tremor is a shaking movement).
  • Anxiety or nervousness.

Cushing’s syndrome (hypercortisolism) is a syndrome caused by prolonged exposure to high levels of cortisol.

Cortisol is a hormone produced by the adrenal glands that, under normal conditions, helps regulate metabolism, blood pressure, immune function and body composition. It also counterbalances insulin and plays an important role in energy storage.

However, excess cortisol can lead to symptoms such as weight gain, increased blood pressure and diabetes.

Cushing’s syndrome is a condition in which the body produces too much of the hormone cortisol. Cushing’s syndrome can be endogenous or exogenous. Exogenous Cushing’s syndrome occurs when an external source causes the body to produce too much cortisol, whereas endogenous Cushing’s syndrome occurs when the body itself produces too much cortisol.

*Signs and symptoms of Cushing’s syndrome include:

  • Weight gain: You may gain weight around your face, neck, back and abdomen.
  • Hair loss: Your hair may become thin or fall out.
  • Feeling tired or weak: You may feel more tired than usual and have less energy than before. This may prevent you from doing the things you enjoy, such as exercising or playing sports.
  • Sleep problems: You may have trouble sleeping at night because you feel wide awake or have nightmares or bad dreams after falling asleep.
  • Memory problems: You may have difficulty remembering things and concentrating on tasks such as reading or working on a computer. These problems can get worse over time as your condition worsens if they are not treated immediately!

You ask, our teams answer.

F.A.Q

Endocrinology is a branch of medicine that deals with hormones in the human body.

Endocrinology involves the study, diagnosis and treatment of diseases related to hormone dysfunction. Endocrinologists are doctors who specialise in treating patients with endocrine disorders such as diabetes mellitus, thyroid, adrenal and pituitary disorders.

The most common type of endocrinology is general endocrinology, which includes the treatment of diabetes mellitus and adrenal disorders, but there are many specialised types of endocrinology:

  • Paediatric endocrinology – treating children with hormones
  • Adult endocrinology – treating adults with hormones
  • Reproductive endocrinology – treating people who have difficulty getting pregnant or who have fertility problems
  • Thyroid disease – treating people with thyroid problems caused by over- or under-activity of the thyroid gland.

The adrenal glands, also known as the suprarenal glands, are endocrine glands located above the kidneys.

The adrenal glands produce hormones that play a role in many bodily functions, including metabolism, digestion and immune function.

The adrenal glands are made up of two different parts: the inner medulla and the outer cortex. The medulla produces epinephrine (adrenaline) and norepinephrine (noradrenaline). The cortex produces steroid hormones such as cortisol, aldosterone and dehydroepiandrosterone (DHEA).

The adrenal glands also produce hormones called corticotropin-releasing hormone (CRH) and arginine vasopressin (AVP). CRH is released from the hypothalamus into the anterior pituitary gland, where it stimulates the release of ACTH from the anterior pituitary into the bloodstream, where it affects the secretion of steroid hormones by the adrenal cortex. AVP is released into the bloodstream by neurons in the supraoptic nucleus of the hypothalamus, where it increases renal water retention by increasing the permeability to water reabsorption by distal tubule cells in the nephron loops of the renal glomerulus.

Diseases of the adrenal glands (treated in our Endocrinology and Diabetology department) fall into two categories: hyperactivity (overproduction) or under activity (underproduction) of the hormones produced by the adrenal glands. Most adrenal disorders are rare and occur in childhood or adolescence. Cancers of the adrenal gland are much less common than other type of cancer, but they are often diagnosed at an early stage because they can cause symptoms and can be detected during routine examinations or imaging tests performed for other reasons.

The pituitary gland is a pea-sized gland located at the base of the brain. It controls the hormones in your body.

The pituitary gland produces several important hormones, including the following

Growth hormone (GH): Growth hormone stimulates growth in children and teenagers. In adults, it helps to build strong cartilage and bones, maintain muscle mass and strength, regulate blood sugar levels and maintain normal blood pressure. If the pituitary gland doesn’t produce enough GH, you may have problems with height (short stature) or weight gain (stunted growth).

Prolactin:  Prolactin stimulates breast development during pregnancy and milk production after birth.

Thyroid-stimulating hormone (TSH):  TSH stimulates the thyroid gland to produce thyroid hormones (triiodothyronine [T3] and thyroxine [T4]).

 Thyroid hormones help regulate metabolism (the rate at which our bodies convert food into energy) and play an important role in normal growth in children. Thyroid hormones also help maintain healthy nerve cells in the brain, which control thinking, memory, mood and other mental functions.

The gonads are the primary sex organs of males and females. In males they are called testes and in females they are called ovaries. The gonads are responsible for the production of gametes (spermatozoa in males, ova in females).

In addition to their reproductive function, the gonads also secrete hormones into the bloodstream that influence body development, sexual characteristics and behaviour.

The male gonad is located in the scrotum, outside the abdomen. The female gonad is located on the upper outer surface of each kidney.

The term “gonads” is sometimes used to refer to the entire reproductive system, including the testes and ovaries.

Diseases of the gonads are treated in our Endocrinology and Diabetology department.