Listeria Outbreak

Eight hospitals in the NHS have been named affected by the outbreak of the bacterium listeria. This bacterium is normally found in food. It causes a slightly rare disease called listeriosis that is very dangerous to people with weakened immune systems e.g(babies and pregnant women).

This outbreak of Listeria has been linked to a specific packed sandwich that has been supplied to these NHS trust by a food supplier called “The Good Food Chain”. This outbreak has already claimed the lives of five patients.

The health secretary has already ordered a review of hospital food in order in order to stop the outbreak from developing into a worse situation.

Patch that can lessen muscle damage after an heart attack

Heart attacks normally occur due to restrictions of oxygen getting into the heart this is normally caused by blockage of blood flow into the heart muscles from the coronary arteries by solids like cholesterol and fatty deposits.

When the coronary arteries are blocked by such substances it reduces and limits the amount of oxygen that can get to the the heart muscles this causes oxygen deprivation and eventual stoppage of the heart’s normal functions due to the unavailability of oxygen for use in aerobic respiration. Which is key process for the production of energy for use in the contraction of muscles. Due to there being a lack of respiration that can occur eventually myocardial infarction occurs and the heart stops bleeding but that is not the only event that occurs; because due to the deprivation of oxygen from the heart muscles, massive damage is done to the muscles that are deprived of oxygen as it causes muscle atrophy in the heart leading to temporary reduced heart performance  and if severe can warrant the need for an heart transplant.

But researchers from Brown University have found an new way to reduce heart muscle damage caused by heart attacks. This patch is mechanical and is placed on the heart of people who have a high risk of heart attack it helps the heart continue contracting and expanding efficiently after an heart attack; research has shown that this patch reduces cell death, the accumulation of scar tissue and oxidative stress. This new innovation is still in trial and is currently being tested on small animals.  It has yet to be seen if it can work on humans.

There is a New Device that can detect Cancer with only one drop of blood

Medical Researchers from the University Of Kansas have just developed an extra-sensitive device that can detect cancer markers in the tiniest drop of blood. This Device comes in the form of an “nano-patterned microfluidic chip”  or in simple words a chip that has patterns etched into it on the scale of a nano-meter which help manipulate and control a fluid usually on the scale of microliters.

 

The device is cheap to produce and was first tested on the detection of ovarian cancer to test its effectiveness (Ovarian cancer which is one of the hardest cancers to detect) and it worked it managed to detect the cancer. This is a definitely an well-made achievement in medicine this will surely reduce patient costs in the diagnosis of certain types of cancer as the device is cheap and relatively easy to make due to not needing to use any expensive and complex nano-fabrication equipment.

About Mosquito Bites

When a mosquito bites into to the skin, the body’s immune system recognizes the mosquito’s saliva as a foreign substance and responds causing a release of a chemical called histamine and histamine increases blood flow around the area of the mosquito bite which causes swelling and/or inflammation around the area. This chemical also causes the itching experience as histamine sends signals to the nerves around the area.

The Insulin Pill

For years, doctors and scientists have been looking for a more viable way to get insulin into the bloodstream of type 1 diabetes sufferers, currently the only way to do that is to take an injection of insulin and this injection of insulin has to be taking multiple times a day which can be very inconvenient for people  who suffer from diabetes as it can be painful and can waste alot of useful time. But, some researchers have found a new way to get insulin into the blood stream orally. The main problem scientist have been struggling with manufacturing insulin pills is the fact that Insulin quickly deteriorates when it comes into contact with gastric acid. Well, scientists have found a way to avoid that issue by creating a pill that has many layers of chemicals surrounding the insulin that can stop the diminishing effects of the stomach and the digestive system on insulin.

NEW “Intelligent Drug Delivery” System

There is a new drug delivery system that scientists are developing to help fight cancer and this is how it works: It uses a nano-capsule that only discharges its drug load when it encounters two tumor signals in the correct sequence . The two signals mentioned above are just two conditions that occur in tumor cells. The first is a rise in acidity over a certain threshold then the second signal is the presence of a substance called glutathione (the levels of which are higher in tumor cells). The nano-capsule also releases unique  markers when the first and second condition(signal) are met by the nano-capsule which doctors can track to monitor the progress of drug delivery.

Light-Activated Drug that could treat Parkinson’s Disease

This new Light-Activated drug is activated by shining light down an optical fiber implanted in the brain, this new approach offers the possibility of controlling the precise location of drug release in the body. The compound’s (Drug) official name is MRS7145 and the compound has recently been tested on mice and it successfully reduced the drug-induced effect of rigidity and tremors (some of the many major symptoms of Parkinson’s disease).

Heart Surgery Advancement

Recently, there has been an medical advancement in heart surgery this recent  advance in medicine consists of a heart valve surgery without cracking open the breastbone of the patient which induces a very painful experience after the surgery. This new type of heart valve surgery is called (Minimally Invasive Heart Valve Surgery) and has many advantages over traditional open-heart surgery for example : It does not leave as much scarring, It is less painful and not as time-consuming as traditional open heart surgery, This is good because it eliminates complications due to being under anesthesia for a long time. But it often requires a medical robot to complete the operation and these robots often take longer to complete an operation and need to be under constant observation and control.