Blood donation is a procedure carried out for the noble cause of helping patients and saving lives. As the healthy donor's blood is transfused into the patient, it gives them a new life. That said, the donor has to fulfill a few criteria to be eligible to donate blood.

Eligibility

While any healthy adult of any gender can donate blood, it is advised for males to donate once every three months and for females to donate once every four months. Some of the other criteria are-


	
	Age
	


Any person in the age group of 18 to 65 years can donate blood depending on other factors.


	
	Weight
	


A donor should be at least weigh 45 kilograms in order to be eligible.


	
	Pulse
	


The temperature and pulse of the donor should be normal during the time of blood donation.


	
	Hemoglobin
	


Hemoglobin in the blood should be at least 12.5 grams otherwise the donor stands ineligible.


	
	Childbirth
	


A female donor should have delivered at least 1 year ago and stopped lactation.


	
	Blood pressure
	


Ensuring that the systolic and diastolic pressures are within normal limits is a must.


	
	Malaria
	


One should not have malarial symptoms and not have been treated for the same in the last 3 months.


	
	Tattoo
	


A person should not have had a tattoo in the past 12 months.


	
	Immunization and vaccination
	


A donor should not have had shots for cholera, typhoid, diphtheria, tetanus, or plague in the last 15 days.


	
	Cancer
	


A person should be checked for cancer and should not have any signs of cancer in the body.


	
	Infection
	


There should not be hepatitis b, c, tuberculosis, leprosy, or hiv infection in the body.


	
	Diseases
	


A person should not have epilepsy, bleeding disorders, sickle cell, or thalassemia.


	
	Drugs
	


One cannot donate blood if injected intravenously ever. It may cause risk to the recipient.


	
	Heart issues
	


A person willing to donate cannot have any heart disease.


	
	Diabetes
	


People on oral drugs or dieting to control diabetes can donate blood while patients with insulin injections cannot.

 

Strictly prohibited


	
	Ones who have been tested hiv positive.
	
	
	People suffering from cardiac problems, hypertension, cancer, epilepsy, or kidney ailments.
	
	
	Donors who have consumed alcohol in the past 24 hours.
	
	
	Ones with a major dental procedure done in the last one month.
	
	
	Women with miscarriages in the past 6 months.
	



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Know Eligibility Rules For Donating Blood

When abnormal cells grow inside the brain and are in the form of a mass the condition is called a brain tumour. There are various types of brain tumours that exist. Some of the brain tumours which exist are malignant or cancerous while other may be non-cancerous. A brain tumour can begin in any part of the brain and spread to other parts of the body or vice-versa. The growth rate of brain tumours is different for each individual suffering from it. As per studies, every 2 in 1, 00, 000 people are said to be affected by a brain tumour in india. However, it may come as a relief to some as not all brain tumours are cancerous or life-threatening. Some are benign tumours and seldom pose any threat to the affected individual.

 

Types of brain tumor

Brain tumours may be primary or secondary.

Primary brain tumour

In this type of brain tumour, the abnormal mass of cells that originated in the brain does not metastasize to the other organs. Based on their location in the brain, the primary brain tumours may be of the following types.


	
	Gliomas: one of the most common types of primary brain tumours, gliomas can have their origin in the spinal cord or the brain. Some of the common types of gliomas include astrocytomas (originates in the cerebrum of the brain), glioblastomas (these tumours form from the astrocytes which form the supportive tissues of the brain), ependymoma (these develop from the ependymal cells which are present within the cns), oligodendrogliomas (these tumours are found to arise from the oligodendrocytes).
	
	
	Schwannomas: also called acoustic neuromas, these primary brain tumours form on the nerves that play an important role in regulating the balance and hearing from the inner ear to the brain.
	
	
	Meningiomas: these types of tumours are usually benign and have their origin in the meninges (membranes surrounding the spinal cord and the brain).
	
	
	Primitive neuroectodermal tumours (pnets): primitive neuroectodermal tumours (pnets) are rare malignant tumours that originate from the fetal (embryonic) cells in the brain.
	
	
	Pituitary adenomas: as the name suggests, these tumours arise from the pituitary gland located at the base of the brain.
	
	
	Medulloblastomas: common among children, these malignant primary tumours develop in the brain (lower back) and gradually spread via the spinal fluid.
	


Other types of primary brain tumours include craniopharyngiomas and germ cell tumours.

Secondary brain tumours ;

Unlike the primary brain tumours, these tumours have their origin in the other body parts and organs (mostly in the lungs, skin, colon, breast, and kidney) and then gradually metastasize to the brain. Secondary brain tumours are found to be more common.

 

What Are The Different Types Of Brain Tumours?

What are the different types of sickle cell disease?

Sickle cell disease or sickle cell disorder is a term often used to talk about a group of diseases affecting hemoglobin. It is the oxygen-carrying element of blood that makes up 2 alpha globins and 2 beta globins. Sickle cell disease happens due to beta-globin mutation and depending on the abnormality in mutation.

Types-
Sickle cell diseases can be of many types depending on the gene mutation in the blood. Some of the common types are-

Sickle hemoglobin s disease (ss)
Hemoglobin ss disease or sickle cell anemia is the most popular type of scd. It takes place when hemoglobin s gene mutation is inherited from both mother and father. In simple words, it happens when the child inherits one substitution beta-globin gene from each parent. In this type, the body only produces hemoglobin s. It is mostly found in people of african and indian origin.

Sickle hemoglobin- c disease (sc):
Patients with sickle hemoglobin sc disease have a moderately dissimilar swapping in their genes of beta-globin. Here, both hemoglobin c and hemoglobin s are inherited from each parent. It may cause similar symptoms like anemia but remains relatively l. People of west african and mediterranean origin are more prone to this.

Hbs beta-thalassemia
People with this type of scd inherit one sickle cell gene s and one gene for beta-thalassemia from each parent. Zero and plus are the two common types of beta-thalassemia. While beta 0 thalassemia usually takes a severe form, beta + thalassemia is a milder form of the disease.

Sickle beta-zero thalassemia
Beta-zero thalassemia takes form when the child inherits the beta s gene from one parent and beta 0 thalassemia gene mutation from the other. With similar symptoms to anemia, it is a slightly severe form of beta-thalassemia.

Sickle beta-plus thalassemia
Substitutions in both beta-globin genes take place in patients with sickle beta thalassemia (sb) disease. This may even lead to the requirement of blood transfusion if no normal beta globin is produced. Mediterranean and caribbean people are more likely to have this disorder.

Hemoglobin sd, hemoglobin se, and hemoglobin so
These are the few rare and not less common types of sickle cell diseases. They are also less severe. People with these forms of scd inherit one sickle cell gene s and one gene from uncommon hemoglobin (d, e, or o) from each parent.

Sickle cell trait
Hbas
People with sct have one sickle cell gene s and one normal gene a from both mother and father. Ones with this disorder show few to no signs of the disease and usually spend a normal life. However, the risk to their future generations still exists.
 

What Are The Different Types Of Sickle Cell Disease?

Cushing syndrome occurs due to prolonged exposure to high levels of cortisol hormone. The condition, often referred to as hypercortisolism, affects women   usually between ages 25 and 40   more than men. Nearly 80% of adults and about 47% of children are diagnosed with cushing syndrome.

The most common cause of cushing syndrome is an overproduction of the stress hormone   cortisol   by the adrenal glands. However, it can also result from overuse of steroid drugs.

If you have cushing syndrome, you are likely to notice symptoms like muscle weakness, weight gain, a buffalo lump, irregular periods, sleep disorders, high blood glucose and high blood pressure.

Recent research has claimed to establish a relation between cushing syndrome and high blood pressure   or what is called hypertension in medical terms.

The link between hypertension and cushing syndrome

Hypertension refers to high blood pressure that causes the force of blood to raise against the artery walls. A number of conditions can lead to hypertension, such as poor diet and lifestyle, an underlying health issue, stress, pregnancy and so on.

As your body encounters stress, the adrenal glands produce and release cortisol in the bloodstream. Studies show that producing excess stress hormone can create a host of pathological problems in the body, including hypertension.

Hypertension is a distinguishing feature of endogenous cushing syndrome. High blood pressure in cushing syndrome has a significant correlation with the duration of hypercortisolism and results from the interaction between various pathophysiological methods regulating peripheral vascular resistance, cardiac output, and plasma volume   all of which are elevated in this state.

How to treat the condition

Cushing syndrome is usually treatable and curable. You will be prescribed to stop using steroid drugs that are likely to increase cortisol levels. If the condition does not improve after treatment, you will have to look for ways to manage the symptoms, especially by monitoring your blood pressure. Team up with your doctor and ask for ways to de-stress yourself.

Relation Between Cushing Syndrome And Hypertension: Know More

People suffering from sickle cell disease (scd) usually start showing symptoms very early. They can appear to show up even during the first year of life. Symptoms of a sickle cell vary from one person to another and can be mild to serious depending on the condition.

 

Sickle cell disease is a health condition that worsens with time. Despite the absence of any full-proof solution, some treatments prevent further complications. These treatments can help patients receive aid for a lifetime. Simply said, sickle cell diseases can be managed medically.

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Treatment

Treatment in a sickle cell patient depends on the severity of the symptoms. Preventing complications and relieving pain is the primary aim of the diagnosis. They can range from medications to blood transfusions.

 

Concerns

Some of the concerns that need to be taken care of during the treatment of scd are-

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	Prevent painful scenarios
	


A painful episode or sickle cell crisis can be avoided by consuming sufficient fluids, wearing warm clothing, and staying away from sudden temperature changes.

 


	
	Avoid infections
	


Children with sickle cell anemia are made safe from infections by using penicillin. Adults with anemia might need to take penicillin all their lives. Doctors should ensure that all vaccinations in children and adults are periodically done to avoid any infections. However, during the covid-19 pandemic sickle cell patients should take extra care.

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Medications

While there can be numerous ways to manage sickle cell treatment, medications help in a significant way. Some of the prescribed medicines are-


	
	Hydroxyurea- it reduces the frequency of sickle crises. Pregnant women should stay away from this according to experts.
	
	
	Crizanlizumab- this drug injected into the patient can help reduce the sickle crises in adults and children over the age of 16.
	
	
	Voxelotor- it is an oral drug used in children over 12. It lowers the risk of anemia by improving blood flow.
	
	
	Pain-relievers- narcotics to prevent excessive pain can also be used during the treatment.
	


 

Surgical procedures


	
	Blood transfusion
	


It is used to prevent stroke and other related complications in patients. This can increase the number of red blood cells in the body that can help reduce the symptoms.

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	Stem cell transplant
	


It is also called a bone marrow transplant and is used to replace affected bone marrow with a healthy one. This procedure is carried out between matched donor and recipient. Although it is a known cure for sickle cell disease, various risks involved make it a less used practice.

 

Can Sickle Cell Be Cured?

World sickle cell day is observed annually on the 19th of june to raise awareness of sickle cell-related diseases. It is observed to increase people's knowledge and the understanding required to face the challenges posed by the disease.


 

What is sickle cell disorder (scd)?

Sickle cell disorders or sickle cell diseases are genetic blood disorders that cause an abnormality in the red blood cells. The rbcs turn into sickle-shaped cells that stick together and block the blood flow in the body.


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Types

There are four major classifications of sickle cell diseases-


	
	Hemoglobin ss disease
	
	
	Hemoglobin sc disease
	
	
	Hemoglobin sb+ thalassemia
	
	
	Hemoglobin sb 0 thalassemia
	



 

Symptoms

One can start noticing symptoms of sickle cell in a patient at around 6 years of age. However, they can differ from person to person. Some of the most typical symptoms are-

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	Anemia
	


A shortage of red blood cells occurs due to the excessive early dying in 10-20 days. It leads to an oxygen shortage in the body.


	
	Excessive pain
	


Blockage of blood flow due to the change in shape leads to periodic cycles of pain in the body.


	
	Swelling in the body
	


As the blood circulation becomes irregular, swelling becomes a regular phenomenon.


	
	Infections
	


Sickle cell can be damaging to the spleen. It increases the risk of ailments in the body that can be prevented only by antibiotics.


	
	Delayed puberty
	


Oxygen and nutrients carried by the blood are required for growth. As a reason, irregular blood flow can lead to slow growth or delay in puberty.


	
	Vision issues
	


Infected blood vessels carrying blood to the eyes can cause damage to the retina. It can lead to visual problems.


 

Traits and treatment

As sickle cell is genetic, it is suggested to take a test that can detect any trait of the disease. It can prevent any life-threatening risks to the newborn. However, we don't have a complete cure for sickle cell disorders. There are preventive measures that reduce the adversity of the disease to an extent. Procedures like blood transfusions help greatly in minimizing the effects of the disorder.

World Sickle Cell Day: Know All About Sickle Cell Disease

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