Showing posts with label cancer. Show all posts
Showing posts with label cancer. Show all posts

Friday, May 29, 2015

Cancer: Breast cancer alters bone to help it spread

healthydailymail.com Researchers at the University of Sheffield said the tumours were effectively "fertilising" the bone to help themselves grow.

The study, in the journal Nature, said it may be possible to protect bone from a tumour's nefarious influence and consequently stop the cancer's spread.

Cancer charities said this opened up "a whole new avenue for research".
Around 85% of breast cancers that spread around the body end up in bone, at which point the cancer is difficult to treat and more deadly.

Bone
The scientists discovered patients with secondary cancers had higher levels of an enzyme called LOX being produced by their tumours and released into the blood.

Bone is constantly being broken down and rebuilt. But in a series of experiments on mice, the research team showed LOX was disrupting the process and leaving lesions and holes in the bone.
Using drugs to block LOX prevented the cancer from spreading.

Dr Alison Gartland, a reader in bone and cancer biology at the university, told the BBC News website: "We think it's a significant breakthrough in trying to prevent metastases (secondary tumours) in breast cancer.

"The cancer cells in the primary tumour are actually fertilising the soil for the future growth of itself, LOX is changing the environment in bone to make it better to grow."

Close up of bone
The structure of the bone is changed by breast cancers
The animal tests also showed that a set of osteoarthritis drugs called bisphosphonates could prevent the spread of cancer.

Bisphosphonates also interfere with the way bone is recycled in order to strengthen it.
They are already given to some cancer patients, but the Sheffield team believe they could have a much larger role.

The effect was discovered only in oestrogen-negative breast cancers. They account for around a third of cases, but are far more deadly.

Katherine Woods, from Breast Cancer Campaign and Breakthrough Breast Cancer, said: "By unveiling the role that the protein LOX is playing, these results open up a whole new avenue for research and treatments that could stop breast cancer spreading to the bone.

"The research also adds weight to the growing body of evidence supporting the role of bisphosphonates in stopping secondary breast cancer in its tracks.

"The reality of living with secondary breast cancer in the bone is a stark one, which leaves many women with bone pain and fractures that need extensive surgery just when they need to be making the most of the time they have left with friends and family."

Are you making the right choices cancer theraphy?

healthydailymail.com There’s more to cancer care than ridding the body of cancer cells. Equally important is the goal of maintaining quality of life while undergoing treatment. Staying strong enough to fight the disease and maintain work and family routines during treatment should be part of any cancer care program. That’s why patients should be offered integrative therapies to supplement conventional surgical, radiation and chemotherapy treatments.

Know your options.
Every cancer and every cancer patient is different. So different combinations of both traditional and integrative oncology therapies should be customized for every treatment plan. It’s important to work with a knowledgeable oncology team to understand your options, how they work, and be sure that they’re offered at your treatment center.

What exactly is integrative care?
Treatments for cancer typically consist of some combination of surgery, chemotherapy and radiation. The combination of these treatment options with therapies designed to maintain quality of life during treatment is what is known as an integrative approach to cancer care. Therapies to improve energy and maintain the immune system during treatment, manage fatigue and guard against malnutrition are all critical. And the more therapeutic choices you have, the better you’ll be able to customize a treatment plan that’s right for you. These integrative therapies may include nutritional counseling, naturopathic medicine, physical therapy, chiropractic care, acupuncture, mind-body therapy, meditation and spiritual support. Patients should consider all of these when choosing a hospital and approving a treatment plan.

The importance of nutrition.
Fully eight out of ten cancer patients show symptoms of malnutrition. This may cause the loss of lean body mass, which can compromise the function of the immune system and weaken the patient. Nutritional therapy is therefore crucial for restoring digestive health and helping you stay strong to maintain your prescribed cancer treatment plan. A registered dietitian understands how the body metabolizes nutrients when a patient is undergoing chemotherapy or radiation and can help optimize nutrient intake during treatment. And a proper diet may help reduce the risk of a secondary cancer or other chronic illnesses to which some cancer patients are susceptible

Naturopathic medicine.
Naturopathic care should also be considered. This can include a referral to acupuncture, lifestyle counseling and also natural non-toxic therapies — herbal and botanical preparations, vitamins, minerals, amino acids, homeopathic plant extracts, etc. — that help manage symptoms and encourage healing. Naturopathic clinicians address a variety of conditions associated with cancer including digestive issues, nerve damage, respiratory conditions and cancer- related fatigue. And your naturopathic clinician should have extensive knowledge of radiation therapy and chemotherapy, plus a comprehensive understanding of the treatments you’re undergoing to ensure the right supplements are part of your treatment plan.

Team work.
Surgeons, doctors, clinicians and other oncology professionals should all be part of your care team. It’s also helpful if all of your team members are located in the same hospital to facilitate collaboration and speed of care. Having your team of physicians and therapists all under one roof allows you to schedule all your appointments at one time, which reduces wait time between appointments and allows you to focus on your treatment.

Tuesday, May 26, 2015

General Facts About skin cancer

healthydailymail.com many facts about skin cancer we need to know:
  1. Each year in the US, nearly 5 million people are treated for skin cancer.61 In 2006, in the most recent study available, 3.5 million cases were diagnosed in 2.2 million people.2
  2. Each year there are more new cases of skin cancer than the combined incidence of cancers of the breast, prostate, lung and colon.2
  3. Treatment of nonmelanoma skin cancers increased by nearly 77 percent between 1992 and 2006.1
  4. Over the past three decades, more people have had skin cancer than all other cancers combined.3
  5. One in five Americans will develop skin cancer in the course of a lifetime.5
  6. 13 million white non-Hispanics living in the US at the beginning of 2007 had at least one nonmelanoma skin cancer, typically diagnosed as basal cell carcinoma (BCC) or squamous cell carcinoma (SCC).3
  7. Between 40 and 50 percent of Americans who live to age 65 will have either BCC or SCC at least once.4
  8. Basal cell carcinoma is the most common form of skin cancer; an estimated 2.8 million are diagnosed annually in the US. BCCs are rarely fatal, but can be highly disfiguring if allowed to grow.6
  9. Squamous cell carcinoma is the second most common form of skin cancer. An estimated 700,000 cases of SCC are diagnosed each year in the US.6,7, 54
  10. The incidence of squamous cell carcinoma has been rising, with increases up to 200 percent over the past three decades in the US.54
  11. Organ transplant patients are up to 250 times more likely than the general public to develop squamous cell carcinoma (SCC).58, 59
  12. About two percent of squamous cell carcinoma patients – between 3,900 and 8,800 people – died from the disease in the US in 2012.54
  13. As many as three thousand deaths from advanced basal cell carcinoma occur annually in the US.65
  14. Actinic keratosis is the most common precancer; it affects more than 58 million Americans.8
  15. Approximately 65 percent of all squamous cell carcinomas and 36 percent of all basal cell carcinomas arise in lesions that previously were diagnosed as actinic keratoses.9
  16. About 90 percent of nonmelanoma skin cancers are associated with exposure to ultraviolet (UV) radiation from the sun

Are we at Risk lymphoma?



healthydailymail.com The exact causes of lymphoma remain unknown; however, the following factors increase your risk of developing the disease:
  • Older age
  • Male
  • Caucasian
  • Having an autoimmune disease
  • HIV/AIDS
  • Diet high in meats and fat
  • Being exposed to certain pesticides

Symptoms of lymphoma include the following:
  • Swollen lymph nodes in the neck, armpits, or groin
  • Fever
  • Weakness and fatigue
  • Weight loss
  • Sweating
  • Difficulty breathing or chest pain
  • Itchy skin
  • Rash

About Lymphoma cancer

healthydailymail.com About half of the blood cancers that occur each year are lymphomas, are cancers of the lymphatic system. This system - composed of lymph nodes in your neck, armpits, groin, chest, and abdomen - removes excess fluids from your body and produces immune cells. Abnormal lymphocytes, a type of white blood cell that fights infection, become lymphoma cells, which multiply and collect in your lymph nodes. Over time, these cancerous cells impair your immune system.

Lymphomas are divided into two categories: Hodgkin lymphoma and non-Hodgkin lymphoma. About 12 percent of people with lymphoma have Hodgkin lymphoma. Because of breakthrough research, this once fatal diagnosis has been transformed into a curable condition. Most non-Hodgkin lymphomas are B-cell lymphomas, and either grow quickly (high-grade) or slowly (low-grade). There are 14 types of B-cell non-Hodgkin lymphomas. The rest are T-cell lymphomas, named after a different cancerous white blood cell, or lymphocyte.

Many lymphoma patients are able to lead active lives as they receive treatment for their symptoms and are monitored by their doctors.

How Is Leukemia Treated?

healthydailymail.com Your doctor will conduct a complete blood count (CBC) to determine if you have leukemia. This test may reveal if you have leukemic cells. Abnormal levels of white blood cells and abnormally low red blood cell or platelet counts can also indicate leukemia. If you test positive for leukemia, your doctor will perform a biopsy of your bone marrow to determine which type you have.
Ilustration: Treatment leukimia
Treatment depends on your age, general health, and type of leukemia. You might receive a combination of treatments that could include chemotherapy, biological therapy, radiation therapy, and stem cell transplantation. Patients with acute leukemia often undergo chemotherapy because this type of treatment targets fast-dividing cells. Many acute leukemia patients have responded successfully to treatment. On the other hand, because the cells divide more slowly in chronic leukemia, it is better treated with targeted therapies that attack slowly dividing cells as opposed to traditional chemotherapy that targets rapidly dividing cells.

For some patients, participating in a clinical trial provides access to experimental therapies. If you are diagnosed with leukemia, talk with your doctor about whether joining a clinical trial is right for you.

Are we at risk of leukemia?

healthydailymail.com Although experts are uncertain about the causes of leukemia, they have identified several risk factors that include the following:

  • Exposure to high levels of radiation
  • Repeated exposure to certain chemicals (for example, benzene)
  • Chemotherapy
  • Down Syndrome
  • A strong family history of leukemia
Ilustration: Leukimia


Symptoms vary depending on the type and stage of leukemia, but they can include the following:

  1. Fever, chills, night sweats and other flu-like symptoms
  2. Weakness and fatigue
  3. Swollen or bleeding gums
  4. Headaches
  5. Enlarged liver and spleen
  6. Swollen tonsils
  7. Bone pain
  8. Paleness
  9. Pinhead-sized red spots on the skin
  10. Weight loss

Leukemia is a type of blood cancer

healthydailymail.com Leukemia is a type of cancer found in your blood and bone marrow and is caused by the rapid production of abnormal white blood cells. These abnormal white blood cells are not able to fight infection and impair the ability of the bone marrow to produce red blood cells and platelets.
Leukimia

Leukemia can be either acute or chronic. Chronic leukemia progresses more slowly than acute leukemia, which requires immediate treatment. Leukemia is also classified as lymphocytic or myelogenous. Lymphocytic leukemia refers to abnormal cell growth in the marrow cells that become lymphocytes, a type of white blood cell that plays a role in the immune system. In myelogenous leukemia, abnormal cell growth occurs in the marrow cells that mature into red blood cells, white blood cells, and platelets. There are four broad classifications of leukemia:

Acute lymphocytic leukemia (ALL)
Acute myelogenous leukemia (AML)
Chronic lymphocytic leukemia (CLL)
Chronic myelogenous leukemia (CML)
Leukemia occurs in both adults and children. ALL is the most common form ofchildhood leukemia, and AML is the second most common. Decades of research have led to vastly improved outcomes for children diagnosed with ALL. The two most common adult leukemias are AML and CLL.

Blood cancers and types of blood cancers

healthydailymail.com Blood cancers affect the production and function of your blood cells. Most of these cancers start in your bone marrow where blood is produced. Stem cells in your bone marrow mature and develop into three types of blood cells: red blood cells, white blood cells, or platelets. In most blood cancers, the normal blood cell development process is interrupted by uncontrolled growth of an abnormal type of blood cell. These abnormal blood cells, and cancerous cells, prevent your blood from performing many of its functions, like fighting off infections or preventing serious bleeding.

There are three main types of blood cancers:
Leukemia

Leukemia, a type of cancer found in your blood and bone marrow, is caused by the rapid production of abnormal white blood cells. The high number of abnormal white blood cells are not able to fight infection, and they impair the ability of the bone marrow to produce red blood cells and platelets.

Lymphoma
Lymphoma is a type of blood cancer that affects the lymphatic system, which removes excess fluids from your body and produces immune cells. Lymphocytes are a type of white blood cell that fight infection. Abnormal lymphocytes become lymphoma cells, which multiply and collect in your lymph nodes and other tissues. Over time, these cancerous cells impair your immune system.

Myeloma
Myeloma is a cancer of the plasma cells. Plasma cells are white blood cells that produce disease- and infection-fighting antibodies in your body. Myeloma cells prevent the normal production of antibodies, leaving your body's immune system weakened and susceptible to infection.

Monday, May 18, 2015

This is cancer classified

healthydailymail.com There are five broad groups that are used to classify cancer.

  1. Carcinomas are characterized by cells that cover internal and external parts of the body such as lung, breast, and colon cancer.
  2. Sarcomas are characterized by cells that are located in bone, cartilage, fat, connective tissue, muscle, and other supportive tissues.
  3. Lymphomas are cancers that begin in the lymph nodes and immune system tissues.
  4. Leukemias are cancers that begin in the bone marrow and often accumulate in the bloodstream.
  5. Adenomas are cancers that arise in the thyroid, the pituitary gland, the adrenal gland, and other glandular tissues.
Illustration cancer classified
Cancers are often referred to by terms that contain a prefix related to the cell type in which the cancer originated and a suffix such as -sarcoma, -carcinoma, or just -oma. Common prefixes include:


  • Adeno- = gland
  • Chondro- = cartilage
  • Erythro- = red blood cell
  • Hemangio- = blood vessels
  • Hepato- = liver
  • Lipo- = fat
  • Lympho- = white blood cell
  • Melano- = pigment cell
  • Myelo- = bone marrow
  • Myo- = muscle
  • Osteo- = bone
  • Uro- = bladder
  • Retino- = eye
  • Neuro- = brain

What are the symptoms of cancer

healthydailymail.com Cancer symptoms are quite varied and depend on where the cancer is located, where it has spread, and how big the tumor is. Some cancers can be felt or seen through the skin - a lump on the breast or testicle can be an indicator of cancer in those locations. Skin cancer (melanoma) is often noted by a change in a wart or mole on the skin. Some oral cancers present white patches inside the mouth or white spots on the tongue.
Illustration skin cancer
 Other cancers have symptoms that are less physically apparent. Some brain tumors tend to present symptoms early in the disease as they affect important cognitive functions. Pancreas cancers are usually too small to cause symptoms until they cause pain by pushing against nearby nerves or interfere with liver function to cause a yellowing of the skin and eyes called jaundice. Symptoms also can be created as a tumor grows and pushes against organs and blood vessels. For example, colon cancers lead to symptoms such as constipation, diarrhea, and changes in stool size. Bladder or prostate cancers cause changes in bladder function such as more frequent or infrequent urination.

Illustration Ovarium cancer
As cancer cells use the body's energy and interfere with normal hormone function, it is possible to present symptoms such as fever, fatigue, excessive sweating, anemia, and unexplained weight loss. However, these symptoms are common in several other maladies as well. For example, coughing and hoarseness can point to lung or throat cancer as well as several other conditions.

Illustration blood cancer
When cancer spreads, or metastasizes, additional symptoms can present themselves in the newly affected area. Swollen or enlarged lymph nodes are common and likely to be present early. If cancer spreads to the brain, patients may experience vertigo, headaches, or seizures. Spreading to the lungs may cause coughing and shortness of breath. In addition, the liver may become enlarged and cause jaundice and bones can become painful, brittle, and break easily. Symptoms of metastasis ultimately depend on the location to which the cancer has spread.

This is cancer can be spreads

healthydailymail.com scientists reported in Nature Communications (October 2012 issue) that they have discovered an important clue as to why cancer cells spread. It has something to do with their adhesion (stickiness) properties. Certain molecular interactions between cells and the scaffolding that holds them in place (extracellular matrix) cause them to become unstuck at the original tumor site, they become dislodged, move on and then reattach themselves at a new site.

The researchers say this discovery is important because cancer mortality is mainly due to metastatic tumors, those that grow from cells that have traveled from their original site to another part of the body. Only 10% of cancer deaths are caused by the primary tumors.

The scientists, from the Massachusetts Institute of Technology, say that finding a way to stop cancer cells from sticking to new sites could interfere with metastatic disease, and halt the growth of secondary tumors.

In 2007, cancer claimed the lives of about 7.6 million people in the world. Physicians and researchers who specialize in the study, diagnosis, treatment, and prevention of cancer are called oncologists.

Malignant cells are more agile than non-malignant ones - scientists from the Physical Sciences-Oncology Centers, USA, reported in the journal Scientific Reports (April 2013 issue) that malignant cells are much “nimbler” than non-malignant ones. Malignant cells can pass more easily through smaller gaps, as well as applying a much greater force on their environment compared to other cells.

Professor Robert Austin and team created a new catalogue of the physical and chemical features of cancerous cells with over 100 scientists from 20 different centers across the United States.

The authors believe their catalogue will help oncologists detect cancerous cells in patients early on, thus preventing the spread of the disease to other parts of the body.

Prof. Austin said "By bringing together different types of experimental expertise to systematically compare metastatic and non-metastatic cells, we have advanced our knowledge of how metastasis occurs."

What Is Cancer And What Causes Cancer?

healthydailymail.com Cancer is a class of diseases characterized by out-of-control cell growth. There are over 100 different types of cancer, and each is classified by the type of cell that is initially affected.

Cancer harms the body when damaged cells divide uncontrollably to form lumps or masses of tissue called tumors (except in the case of leukemia where cancer prohibits normal blood function by abnormal cell division in the blood stream). Tumors can grow and interfere with the digestive, nervous, and circulatory systems, and they can release hormones that alter body function. Tumors that stay in one spot and demonstrate limited growth are generally considered to be benign.


More dangerous, or malignant, tumors form when two things occur:
a cancerous cell manages to move throughout the body using the blood or lymph systems, destroying healthy tissue in a process called invasion
that cell manages to divide and grow, making new blood vessels to feed itself in a process called angiogenesis.
When a tumor successfully spreads to other parts of the body and grows, invading and destroying other healthy tissues, it is said to have metastasized. This process itself is called metastasis, and the result is a serious condition that is very difficult to treat.

Some of the possible early signs of breast cancer

healthydailymail.com What is the difference between invasive and non-invasive breast cancer?Invasive breast cancer - the cancer cells break out from inside the lobules or ducts and invade nearby tissue. With this type of cancer, the abnormal cells can reach the lymph nodes, and eventually make their way to other organs (metastasis), such as the bones, liver or lungs. The abnormal (cancer) cells can travel through the bloodstream or the lymphatic system to other parts of the body; either early on in the disease, or later.

Non-invasive breast cancer - this is when the cancer is still inside its place of origin and has not broken out. Lobular carcinoma in situ is when the cancer is still inside the lobules, while ductal carcinoma in situ is when they are still inside the milk ducts. "In situ" means "in its original place". Sometimes, this type of breast cancer is called "pre-cancerous"; this means that although the abnormal cells have not spread outside their place of origin, they can eventually develop into invasive breast cancer. What are the signs and symptoms of breast cancer? A symptom is only felt by the patient, and is described to the doctor or nurse, such as a headache or pain. A sign is something the patient and others can detect, for example, a rash or swelling.

The first symptoms of breast cancer are usually an area of thickened tissue in the woman's breast, or a lump. The majority of lumps are not cancerous; however, women should get them checked by a health care professional.

  • En Breast cancer illustrations
  • Some of the possible early signs of breast cancer
  • According to the National Health Service, UK, women who detect any of the following signs or symptoms should tell their doctor:
  • A lump in a breast
  • A pain in the armpits or breast that does not seem to be related to the woman's menstrual period
  • Pitting or redness of the skin of the breast; like the skin of an orange
  • A rash around (or on) one of the nipples
  • A swelling (lump) in one of the armpits
  • An area of thickened tissue in a breast
  • One of the nipples has a discharge; sometimes it may contain blood
  • The nipple changes in appearance; it may become sunken or inverted
  • The size or the shape of the breast changes
  • The nipple-skin or breast-skin may have started to peel, scale or flake.

This is breast cancer

healthydailymail.com Breast cancer is a kind of cancer that develops from breast cells. Breast cancer usually starts off in the inner lining of milk ducts or the lobules that supply them with milk. A malignant tumor can spread to other parts of the body. A breast cancer that started off in the lobules is known as lobular carcinoma, while one that developed from the ducts is called ductal carcinoma.

The vast majority of breast cancer cases occur in females. This article focuses on breast cancer in women. Click here to read about breast cancer in men (male breast cancer).

Breast cancer is the most common invasive cancer in females worldwide. It accounts for 16% of all female cancers and 22.9% of invasive cancers in women. 18.2% of all cancer deaths worldwide, including both males and females, are from breast cancer.

Breast cancer rates are much higher in developed nations compared to developing ones. There are several reasons for this, with possibly life-expectancy being one of the key factors - breast cancer is more common in elderly women; women in the richest countries live much longer than those in the poorest nations. The different lifestyles and eating habits of females in rich and poor countries are also contributory factors, experts believe.

According to the National Cancer Institute, 232,340 female breast cancers and 2,240 male breast cancers are reported in the USA each year, as well as about 39,620 deaths caused by the disease. The anatomy of a female breast
Breast anatomy normal scheme
1. Chest wall. 2. Pectoralis muscles. 3. Lobules (glands that make milk). 4. Nipple surface. 5. Areola. 6. Lactiferous duct tube that carries milk to the nipple. 7. Fatty tissue. 8. Skin.

A mature human female's breast consists of fat, connective tissue and thousands of lobules - tiny glands which produce milk. The milk of a breastfeeding mother goes through tiny ducts (tubes) and is delivered through the nipple.

The breast, like any other part of the body, consists of billions of microscopic cells. These cells multiply in an orderly fashion - new cells are made to replace the ones that died. In cancer, the cells multiply uncontrollably, and there are too many cells, progressively more and more than there should be.

Cancer that begins in the lactiferous duct (milk duct), known as ductal carcinoma, is the most common type. Cancer that begins in the lobules, known as lobular carcinoma, is much less common.