Glioma: How and When This Health Issue Can Affect Our Quality of Life

Brain health and quality of life are closely linked. Unfortunately, currently, there are numerous conditions that can compromise the proper functioning of this vital organ – the brain. Among these is glioma, a tumor originating from the brain’s glial cells, which presents a significant medical challenge.

Discover what glioma is, its types, causes, symptoms, diagnostic methods, and available treatment options. Additionally, learn about the risk factors and, most importantly, what measures you can take to manage this condition more effectively.

Benign or Malignant Glioma: What Does This Condition Mean?

The human brain is a complex structure, composed of billions of neurons responsible for transmitting information. Glial cells support and protect neurons, ensuring optimal nervous system function.

In this chapter, we aim to provide a clear picture of glioma and its impact on brain health.

Brain Tumor or Glioma: What is it and why does it occur?

Glioma is a tumor that develops from glial cells. These tumors can occur anywhere in the brain or spinal cord. Depending on the type of glial cells they originate from and their grade of malignancy, gliomas can be classified in various ways.

There are three main types of glial cells that can give rise to tumors: astrocytes, oligodendrocytes, and ependymal cells.

1. Astrocytomas are the most common gliomas. They develop from astrocytes: star-shaped cells that support neurons. Astrocytomas are classified into four grades, from Grade I (slow-growing) to Grade IV (glioblastoma, the most aggressive form).

1. Oligodendrogliomas originate from oligodendrocytes – cells that produce myelin, the substance that insulates nerve fibers. These tumors are generally slow-growing.

1. Ependymomas develop from ependymal cells, which line the cerebral ventricles (cavities filled with cerebrospinal fluid).

The exact causes of glioma are still unknown. Preliminary research suggests that a combination of genetic and environmental factors may be responsible for their development.

Identified risk factors include:

• age: the risk increases with age, with glioma being more common in older adults;
• exposure to ionizing radiation, such as that used in radiotherapy;
• family history;
• certain rare genetic syndromes, such as neurofibromatosis.

All these indicate an increased risk of glioma and should be monitored carefully and continuously.

Brain Glioma: How are Brain Functions Affected?

A brain glioma can affect brain functions in a variety of ways, depending on the tumor’s location, size, and growth rate. As it grows, it exerts pressure on the surrounding brain tissue, affecting the functions of that area. For example, a tumor in the frontal lobe can affect cognitive functions such as planning, logical thinking, and memory.

Essentially, tumor cells invade and destroy healthy brain tissue, impairing the functions of that area. This explains why a tumor in the motor cortex can cause muscle weakness or paralysis.

Brain tumors can also cause inflammation in the surrounding brain tissue, affecting the overall functioning of neurons. Inflammation can also cause cerebral edema (fluid buildup in the brain), which can increase intracranial pressure and worsen symptoms.

Glioma: Characteristic Symptoms

Glioma symptoms vary depending on the tumor’s location and size, as well as its growth rate.

Among the most common are:

• persistent headaches, which worsen in the morning or upon waking;
• seizures, which can occur due to the pressure exerted by the glioma tumor on the brain;
• changes in personality and behavior, with irritability, depression, or anxiety;
• vision problems, such as double vision or loss of peripheral vision;
• muscle weakness, coordination difficulties, or paralysis.
• speech problems or difficulty understanding language.

All these can indicate a glioma and should prompt you to seek medical attention for a specialist consultation.

In addition to medical treatment, supporting general health with an antioxidant-rich diet can be beneficial for the brain. 100% Natural, Organic Aronia Juice – 3L, a 100% natural product, obtained by cold pressing fresh fruits, is an excellent option. Rich in antioxidants and vitamins, aronia juice contributes to maintaining health and preventing various ailments. The antioxidants in aronia, especially anthocyanins, protect neurons from oxidative stress and help strengthen neuronal connections.

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Regular consumption of aronia juice can reduce the risk of neurodegenerative diseases, such as Alzheimer’s and Parkinson’s, and improve thinking ability and memory. Thus, brain health is protected, and you can enjoy a fulfilling life.

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Cerebral, Optic, or Diffuse Glioma: Types of Glioma You May Encounter

There are various types of gliomas, classified according to criteria such as location, cell type of origin, and grade of malignancy. In this chapter, we will analyze the main types of gliomas, their specific characteristics, and how they influence symptoms.

Optic or Cerebral Glioma: Useful Information

Brainstem glioma is a tumor that develops in the brainstem, the lower part of the brain that connects to the spinal cord. It controls vital functions such as breathing, heart rate, and sleep.

There are 2 specific forms of brainstem glioma:

• Diffuse Intrinsic Pontine Glioma (DIPG): this is the most common type of brainstem glioma in children. It is a high-grade (aggressive) glioma with a poor prognosis.
• Focal gliomas: are less common and can be low or high grade.

Although brainstem glioma is a serious condition, there are treatment options that can alleviate symptoms and prolong survival.

Optic nerve glioma is a tumor that develops in the optic nerve, the structure responsible for transmitting visual information from the eye to the brain. Approximately 15% of patients with neurofibromatosis type 1 (a genetic condition that causes tumors to grow on nerves) develop optic nerve glioma.

The location can affect any part of the optic nerve, from the eyeball to the optic chiasm (the area where the optic nerves cross).

The good news is that most optic nerve gliomas are low-grade (Grade 1), meaning they grow slowly.

Low-Grade or High-Grade Glioma: Which is the More Serious Form?

The most well-known classification of gliomas is based on their grade. This indicates the tumor’s aggressiveness and growth rate.

There are two main categories:

Grade 2 Glioma and Grade 1 Glioma – or Low-Grade Gliomas:

• they grow slowly;
• tumor cells resemble normal cells more closely;
• they are less invasive, meaning they spread less into the surrounding brain tissue;
• they have a better prognosis, with a higher survival rate.

Some examples are pilocytic astrocytoma, diffuse astrocytoma, and oligodendroglioma.

Grade 4 Glioma and Grade 3 Glioma – considered High-Grade:

• they grow rapidly;
• tumor cells look abnormal under a microscope;
• they are more invasive into healthy brain tissue;
• they have a less favorable prognosis, with a lower survival rate.

Examples include anaplastic astrocytoma and glioblastoma multiforme.

It is important to remember that the tumor grade is not the only factor influencing the prognosis. The tumor’s location, the patient’s age, and general health status are also important. For this reason, for optimal management, it is necessary to discuss with your doctor.

Grade 4 Diffuse Hemispheric Glioma: What Does It Mean?

Grade 4 diffuse hemispheric glioma, also known as glioblastoma multiforme (GBM), is the most aggressive and common form of primary brain tumor in adults.

• It grows and spreads rapidly into the surrounding brain tissue.
• Tumor cells spread diffusely into healthy tissue, making it difficult to clearly delineate the tumor.
• It shows areas of necrosis (cell death) and a dense network of abnormal blood vessels.
• This glioma of the brain hemisphere most often appears in the frontal and temporal lobes.

For each type of glioma, symptoms vary depending on the tumor’s location. However, the most common include persistent headaches, seizures, focal neurological deficits, changes in personality and behavior, nausea, and vomiting.

Malignant or Benign Glioma: Diagnosis and Treatment

In general, benign tumors grow slowly and do not spread to other parts of the body. Malignant tumors, however, grow rapidly and can invade surrounding tissues or metastasize (spread) to other organs.

Low-grade gliomas (Grades 1 and 2) are generally considered “benign” because they grow slowly and have a better prognosis. However, even these tumors can grow and cause severe symptoms, and in some cases, transform into high-grade tumors.

High-grade gliomas (Grades 3 and 4) are considered “malignant” because they grow rapidly, spread into the surrounding brain tissue, and have a more guarded prognosis. Glioblastoma multiforme is an example of a malignant glioma.

How is Glioma Diagnosed?

Glioma diagnosis involves a series of imaging and neurological examinations.

• Neurological examination is the first step. The neurologist will assess cognitive functions, reflexes, coordination, and balance.

• MRI (Magnetic Resonance Imaging) is the most important imaging investigation for diagnosing glioma. This technique allows for detailed visualization of brain structures and identification of tumors.
• CT (Computed Tomography) scan can be used to obtain images of the brain and identify tumors.
• Biopsy: a sample of tumor tissue is taken for microscopic examination. This procedure allows for definitive diagnosis and tumor classification.

Glioma Treatment

Glioma treatment depends on the tumor’s type, location, and grade of malignancy, as well as the patient’s general health status.

Available options include:

• surgery, aiming to remove as much of the tumor as possible;
• radiotherapy – using ionizing radiation to destroy tumor cells;
• chemotherapy: using medications to destroy tumor cells;
• targeted therapy: using drugs that block specific molecules involved in tumor growth.

In addition to specific treatment, managing glioma involves a series of measures to alleviate symptoms and improve the patient’s quality of life. These can vary, including pain management medications, occupational therapy, psychological counseling, and support groups.

Therefore, glioma is a complex condition that requires in-depth understanding and a personalized approach for each patient. While it represents a significant medical challenge, research continues to bring new hope regarding the diagnosis, treatment, and improvement of quality of life for patients with glioma. It is important to be informed and to collaborate closely with your specialist doctor. Only then will you receive all the necessary support to navigate this difficult experience, so that your quality of life is affected as little as possible.

References:

https://www.mayoclinic.org/diseases-conditions/glioma/symptoms-causes/syc-20350251

https://my.clevelandclinic.org/health/diseases/21969-glioma

https://www.hopkinsmedicine.org/health/conditions-and-diseases/gliomas

https://www.cancerresearchuk.org/about-cancer/brain-tumours/types/glioma-adults