My Science School

EV, known colloquially as tree man syndrome, is an incredibly rare genetic condition. It leads to chronic HPV infections that result in characteristic skin growths and lesions.

People who may have EV or a family history of it should notify a doctor, ideally a specialized dermatologist, as soon a possible. The goal is to manage symptoms and prevent severe complications. A person may also benefit from genetic counseling.

Symptoms can appear at any age, including infancy. In more than half of EV cases, symptoms first appear in children between the ages of 5 and 11. For nearly a quarter of people with EV, symptoms first emerge during puberty.

Symptoms may include a mix of:

• flat-topped or bumpy lesions


• small, raised bumps known as papules


• large patches of raised and inflamed skin, known as plaques


• small, raised brown lesions that resemble scabs

 

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The Ice Bucket Challenge, sometimes called the ALS Ice Bucket Challenge, was an activity involving the pouring of a bucket of ice water over a person's head, either by another person or self-administered, to promote awareness of the disease amyotrophic lateral sclerosis (ALS, also known as motor neuron disease and in the U.S. as Lou Gehrig's disease) and encourage donations to research. The challenge was co-founded by Pat Quinn and Pete Frates; it went viral on social media during July–August 2014. In the U.S., many people participated for the ALS Association, and in the UK, many people participated for the Motor Neurone Disease Association, although some individuals opted to donate their money from the Ice Bucket Challenge to other organizations.

The Ice Bucket Challenge is a fun way to raise awareness and donations for a worthy cause. Most supporters are okay with the fact that the challenge is a trend. They understand that the campaign is harnessing the phenomenon of Internet virality and that, even if it only stays popular for a few weeks, the campaign will still have done some good.

 

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Microcephaly is a medical condition in which the circumference of the head is smaller than normal because the brain has not developed properly or has stopped growing. Microcephaly can be present at birth or it may develop in the first few years of life.

Microcephaly can be caused by a variety of genetic and environmental factors. Children with microcephaly often have developmental issues. Generally there's no treatment for microcephaly, but early intervention with supportive therapies, such as speech and occupational therapies, may help enhance your child's development and improve quality of life.

There are many potential causes of microcephaly, but often cause remains unknown. The most common causes include:

• infections during pregnancy: toxoplasmosis (caused by a parasite found in undercooked meat), Campylobacter pylori, rubella, herpes, syphilis, cytomegalovirus, HIV and Zika;


• exposure to toxic chemicals: maternal exposure to heavy metals like arsenic and mercury, alcohol, radiation, and smoking;


• pre- and perinatal injuries to the developing brain (hypoxia-ischemia, trauma);


• genetic abnormalities such as Down syndrome; and


• severe malnutrition during fetal life.

 

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Progeria is a rare genetic condition that causes a person to age prematurely. Children with progeria appear healthy, but by the age of 2 years, they look as if they have become old too fast.

Progeria is a genetic condition.

Most children with progeria have a mutation on the gene that encodes for lamin A, a protein that holds the nucleus of the cell together. This protein is also known as progerin.

The defective protein is thought to make the nucleus unstable. This instability makes cells more likely to die younger, leading to the symptoms of progeria.

It seems to happen because of a rare genetic change. One parent may have the mutation, even though they do not have progeria.

There is not usually any family history, but if there is already one child in the family with progeria, there is a 2 to 3 percent chance that another sibling will have it.

Genetic testing can show whether a parent has the mutation or not.

 

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Athlete's foot is a rash on the skin of the foot. It is the most common fungal skin infection. There are three main types of athlete's foot. Each type affects different parts of the foot and may look different.

Athlete's foot is caused by a fungus that grows on or in the top layer of skin. Fungi (plural of fungus) grow best in warm, wet places, such as the area between the toes.

Athlete's foot spreads easily. You can get it by touching the toes or feet of a person who has it. But most often, people get it by walking barefoot on contaminated surfaces near swimming pools or in locker rooms. The fungi then grow in your shoes, especially if your shoes are so tight that air cannot move around your feet.

If you touch something that has fungi on it, you can spread athlete's foot to other people—even if you don't get the infection yourself. Some people are more likely than others to get athlete's foot. Experts don't know why this is. After you have had athlete's foot, you are more likely to get it again.

Most of the time, a doctor can tell that you have athlete's foot by looking at your feet. He or she will also ask about your symptoms and any past fungal infections you may have had. If your athlete's foot looks unusual, or if treatment did not help you before, your doctor may take a skin or nail sample to test for fungi.

Not all skin problems on the foot are athlete's foot. If you think you have athlete's foot but have never had it before, it's a good idea to have your doctor look at it.

 

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Human rhinoviruses group of viruses — of which there are more than 100 types — is by far the most common identified cause of colds. The viruses grow best at the temperature inside the human nose.

Human rhinoviruses (HRVs) are highly contagious. However, they rarely lead to serious health consequences.

Recent research has found that HRVs manipulate genes and it is this manipulation that brings about an overblown immune response. The response causes some of the most troublesome cold symptoms. This information could lead scientists to important breakthroughs in the treatment of the common cold.

Potential complications of infection include otitis media, sinusitis, chronic bronchitis, and exacerbations of reactive airway disease (eg, asthma). Although rhinovirus infections occur year-round, the incidence is highest in the fall and the spring.

 

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Hepatitis A is caused by a virus that infects liver cells and causes inflammation. The inflammation can affect how your liver works and cause other signs and symptoms of hepatitis A.

The virus most commonly spreads when you eat or drink something contaminated with fecal matter, even just tiny amounts. It does not spread through sneezing or coughing.

Unlike other types of viral hepatitis, hepatitis A does not cause long-term liver damage, and it doesn't become chronic.

In rare cases, hepatitis A can cause a sudden loss of liver function, especially in older adults or people with chronic liver diseases. Acute liver failure requires a stay in the hospital for monitoring and treatment. Some people with acute liver failure may need a liver transplant.

No medication can get rid of the hepatitis A virus once you have it. Your doctor will treat your symptoms -- they may call this supportive care -- until it goes away. They’ll also do tests that check how well your liver is working to be sure your body is healing like it should.

 

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Culex pipiens is commonly referred to as the House Mosquito. It is the main vector, or carrier, of St. Louis Encephalitis, West Nile Virus, Western Equine Encephalitis, Heartworm in dogs, and bird Malaria.

The House mosquito species is also a conveyor of Rift Valley Fever, Sindbis virus, and filariasis in other regions of the world. Although its main target has been birds, the House mosquito is now targeting humans and mammals on a regular basis. The mosquito bites an infected bird and then goes to another blood meal host, whether a human or another bird, and bites that new victim, injecting it with the virus from the original bird. This process has helped to spread diseases from bird to bird, and more recently, from bird to humans and other mammals. Culex pipiens can therefore be considered a “bridge” vector as it transmits viruses between birds and mammals.

Considered to be a medium-sized mosquito, the adult Culex pipiens may reach up ¼”. The House mosquito species' body is usually brownish or grayish brown. The proboscis and wings are usually brown.

Eggs are laid in rafts of 150-350 eggs in polluted or foul water in a variety of water-filled containers or areas. The eggs usually hatch within 2 days.

Larvae are known as wigglers since they seem to move in that manner. They feed on fungi, bacteria and other tiny organisms through straw-like filters. These larvae will undergo growth throughout the four instars of this stage.

Pupae are known as tumblers because of the way they seem to “tumble” through the water. Their rounded, comma-like shape makes this mode of movement easy. These pupae do not eat during the 1-2 days in which they will become an adult mosquito. If you suspect you have a house mosquito infestation, then an effective mosquito control system can offer protection against these pests and their mosquito-borne diseases.

 

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Typhoid, caused by S. Typhi bacteria, is a water-borne disease that spreads because of poor sanitation. Eating uncovered or spoilt food and drinking contaminated water are the two major causes of typhoid. Symptoms include fever, headache, joint pain, and sore throat.

Signs of high fever, lethargy, body pain, vomiting, poor appetite, dry cough, weight loss, and diarrhoea appear in a Typhoid infected person. Typhoid easily spreads through contaminated water/food or getting in close contact with the infected person. It lasts for 7-10 days and can be treated through antibiotic therapy.

Avoid drinking contaminated water or eating food without washing hands. Personal hygiene is a must and is always recommended. Carry a sanitizer where water is not available.

Monsoon in India comes with varieties of airborne and water-borne disease and hence, it is important to enjoy monsoons with the best health insurance policy and Arogya Sanjeevani Policy. A mediclaim insurance comes with benefits of medication, hospitalization and other covers. When sick, opt for cashless hospitals as it settles the amount directly with the insurance company or the provider.

 

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