Poop comes in all shades, often a result of what we eat and chemical changes due to bile as our food gets digested.
Normal poop color is brown though sometimes if we eat green leafy vegetables it could be on the greener side. A sudden color change could be indicative of a health problem.
Know what your poop color indicates and when it could mean trouble:
Green: Green colored stool could be due to iron supplements, green leafy vegetables, however, it could also mean that the food is moving too quickly through the large intestine as a result of which bile doesn’t have the time to break down the food completely.
White, Clay or Grey: Whitish, grey or clay-colored stools indicate lack of bile and often indicate a problem with gallbladder or liver. The problems could be as varied as liver cirrhosis needing a liver transplant or liver failure due to hepatitis A, Hep B or Hep C.
Yellow: Unless, you are having too many yellow colored liquids, yellow stools indicates, excess fat or poor fat absorption.
Poor fat absorption could be due to blocked bile ducts, a problem with the pancreas, and may indicate lack of enzymes for food digestion or may even point towards chronic pancreatitis, celiac disease.
Red: Unless you have been eating beets, carrots, tomatoes, cranberries, food with red coloring, bright red colored stool may indicate bleeding due to hemorrhoids, anal fissure, and even colon cancer or cancer of the rectum or even bowel cancer.
Black: Black colored stools, may indicate bleeding from the intestines, stomach which may even indicate stomach cancer and need an immediate follow-up call with a doctor.
A diet rich in blueberries or black licorice, iron supplements, bismuth subsalicylate could be other exceptions.
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As we continue our conversation on Precision Medicine for cancer, a popular therapy used to treat NET tumours or Neuro Endocrine Tumours is PRRT or Peptide Receptor Radionuclide therapy. Neuroendocrine tumours are a rare form of cancer and originate from Neuro endocrine cells in the body and hence the name.They are different from adenocarcinoma’s and often do not do not respond well to chemotherapy, the 1st line of treatment for most cancers.
By administering radioactive protein lutetium octreotate, it is possible to treat NET tumours or neuro endocrine carcinoma with precision and offset progression of disease.
In PRRT a peptide or a cell targeting protein is combined with a small amount of radio active nuclide creating what is called as a radio peptide. The radio peptide when injected into the patients blood stream travels and binds to a neuro endocrine tumour, delivering a high dose of radiation to the tumours. This also limits damage to the nearby healthy tissue and hence lesser and milder side effects than chemotherapy.
What kind of cancers can be treated by PRRT?
Along with Neuroendocrine tumours, carcinoids, islet cell carcinoma of the pancreas, small cell carcinoma of the lung a form of lung cancer, pheochromocytoma (a rare tumor that forms in the adrenal glands), gastro-enteropancreatic (stomach cancer , intestine cancer and pancreas) neuroendocrine tumors, and rare thyroid cancers that are unresponsive to treatment with radio iodine are often treated with PRRT.
Patients with following conditions are often proposed for PRRT
When neuro endocrine tumours are not responsive to other lines of cancer treatment
When surgical removal of tumours is not possible at current stage, PRRT may be used to reduce size of the tumours.
PRRT is also a treatment option for last stage inoperable cancers when metastasis has set in.
The main aim of PRRT is then to slow down progression of disease, offer relief and prolong life.
However, not all neuroendocrine tumours respond to PRRT. First an OctreoScan is done. If the patient is found to have a positive OctreoScan and meets other requirements, PRRT is proposed.
What happens during PRRT ?
For patients having a positive octreoscan, to start with an amino acid solution is delivered to protect the kidneys.
As most net tumours have a lot of a specific type of surface receptor, a protein called somatostatin. Octreotide, is a lab version of somastostatin. During PRRT, a dose of radio nuclides such as Lutetium, Yttrium are often combined with octreotide and injected into the blood stream.
Molecular imaging and scans follow to see whether the radio peptide has latched on of the tumour sites correctly.
The entire session usually lasts for about 4 hrs and is often done as an out patient procedure.
The main goals of PRRT hence are to provide symptom relief, to stop or slow tumor progression and to improve overall survival.
Advantages of PRRT ?
PRRT along with other molecular therapies or targeted therapies offer excellent results as they are tailor made keeping in mind molecular properties of the tumour and also biologic characteristics of the patient.
PRRT is offered in Germany , USA, UK and other developed countries at a significant cost, In India, a single session of PRRT costs approx USD 6300.
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Stomach cancer is defined as the growth of cancerous cells in the stomach lining.
According to the National Cancer Institute (NCI), there will be approximately 24,590 new cases of stomach cancer every year.
Stomach cancer is often left undiagnosed because it doesn’t have many early symptoms – it is diagnosed when cancer spreads to other parts of the human body.
A few early signs are: Nausea and Vomiting: Nausea is defined as a feeling of queasiness at the back of your throat or stomach. Vomiting, on the other hand, is defined as the contraction of your stomach muscles that push the digested food back through your oesophagus. Both nausea and vomiting may be early symptoms of stomach cancer especially if one’s blood shows in the vomit. Bloating: If one faces bloating, which doesn’t ease up and persistent, it calls for a visit to the doctor and an ultrasound at least to start with.
H. Pylori Infection: If one suffers from frequent indigestion, bloating,one must get tested for bacterial Infection with H pylori, as it is the most prominent indication of people developing stomach cancer later.
Research has shown that people suffering from H.Pylori infections have a much incidence of stomach cancers.
Weight loss: Stomach tumours cause blockages, preventing food from passing into the stomach or into the intestines causing loss of appetite. Similarly, stomach cancer causes energy from food to be burned at a faster rate which combined with nutritional loss causes weight loss.
Stomach Pain: Unexplained stomach pain , the kind which persists is also a warning sign that something may be wrong.
Frequent HeartBurns: Frequent heartburns could be because of ulcers and may also indicate that everything is not ok.
Inability to eat: As the tumour progresses, it blocks various parts of the digestive system. Coupled with body’s inability to digest food, there is a reduced appetite, which at a later stage is often total inability to eat and digest food.
As the symptoms are so generic, they are often missed leading to diagnosis at a much later stage when the cancer has spread or metastatised to other parts of the body.
Is there a co-relation between our habits and stomach cancer? Food: Food and stomach cancer have a direct relationship. The right dietary intake can lower the risk of stomach cancer. Storage of food through refrigeration instead of by smoking, salting and pickling also reduces the risk because the nitrates and nitrites in smoked food increase the risk of stomach cancer. Smoking: The use of tobacco increases the risk of stomach cancer. It is said that the rate of risk of stomach cancer is doubled in smokers as compared to non-smokers. This is because smoking reduces the production of natural substances that protect the stomach and duodenum from tissue damage. Additionally, smoking promotes the duodenum reflux and increases the acidity of the duodenum making it vulnerable to H. Pylori bacteria. Smoking also constricts the blood vessels in the stomach reducing the blood flow in the stomach. All these mechanisms strengthen the link between stomach cancer and smoking.
Treatment of stomach cancer involves, surgery if detected at an early stage, followed by chemotherapy as the 1st line of treatment.
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