Biomedical Laboratory Science

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Sunday, July 3, 2016

Eating Walnuts May Help Prevent Colon Cancer

A team of researchers from UConn Health and The Jackson Laboratory for Genomic Medicine found that eating walnuts can reduce one's risk of getting colon cancer.

In the study, mice that were fed walnuts (totaling seven percent to 10.5 percent of their total calories) developed fewer instances of colon cancer.

Seven to 10.5 percent of daily total calories coming from walnuts is equivalent to a human eating about an ounce of walnuts every day.

Walnut consumption
"Our results show for the first time that walnut consumption may reduce colon tumor development," said Daniel W. Rosenberg of UConn Health, principal investigator on the study.


Could walnuts be the key to preventing colon cancer?

Birth Control Without a Doctor's Visit? There's an App for That

Access to birth control is improving, but there are a few things to be aware of before proceeding.

While the issue of whether to allow hormonal contraceptives to be sold over the counter continues to be a political lightning rod, an access-improving development has quietly taken root without attracting controversy: An array of new apps and websites now make it possible for women to obtain prescription contraceptives in many states without having to schedule a doctor’s appointment. 

Thanks to game-changing program offerings from Nurx, Maven, Lemonaid, Virtuwell and Prjkt Ruby, women can answer questions about their health online or by video; the information is then reviewed by a doctor or nurse practitioner who will write a three-month prescription for oral contraceptives that patients can pick up at a nearby pharmacy or in some cases have delivered right to their homes.




Source: HealthUSNews

Anatomy of the Heart

The heart sits in the middle of the chest behind the sternum, and extends towards the left side. It is a strong muscular pump, about the size of its owner’s clenched fist. It has four chambers:
  • two atria, which receive blood to pump to the ventricles
  • two ventricles, one that pumps blood to the lungs (right), and another that pumps blood to the body (left)
In the average adult, the heart beats around 60 – 100 times per minute, sending about six litres of blood through well over 1,000 complete circuits of the body each day.

During a lifetime of 70 years, the heart will beat more than 2.5 billion times. The only rest it gets or needs is a split-second pause between beats.


Source: learncpronline

Simple List of Seven Predictors Helps screen Patients at Risk of COPD

A clinical trial that tested a simple seven-item list of predictive factors finds it is an effective screening tool for helping doctors identify patients at risk for chronic obstructive pulmonary disease - a progressive lung disease where it becomes hard to breathe. The screening tool works even when patients are not experiencing symptoms.

The trial, which took place in primary care settings in four Latin American countries: Argentina, Colombia, Venezuela, and Uruguay, is part of the Prevalence Study and Regular Practice, Diagnosis and Treatment (PUMA) study and is reported in the journal Respirology.

Chronic obstructive pulmonary disease (COPD) is a progressive disease that makes it hard to breathe. As symptoms progress, patients experience wheezing, shortness of breath, chest tightness, and they cough up large amounts of mucus.

The leading cause of COPD is smoking - most people with COPD are smokers or ex-smokers. However, long-term exposure to other lung irritants - such as chemical fumes, air pollution, dust, and smoke from woodstoves or cookstoves (biomass smoke) - also raise the risk of COPD.


Source: medicalnewstoday

Saturday, July 2, 2016

MCQ 9. A Nucleoside is a Structural Subunit of Nucleic Acids

MCQ 9. A nucleoside is a structural subunit of nucleic acids that are the heredity-controlling components of all living cells.

What does it consist of?
a. Nitrogenous base
b. Purine or pyrimidine base + sugar
c. Purine or pyrimidine base + phosphorous
d. Purine or pyrimidine base + sugar + phosphorous
e. Purine + pyrimidine base + sugar + phosphorous

MCQ 5. Iron Deficiency Anaemia in Pregnancy


MCQ 5. Iron deficiency is the most common cause of anaemia in pregnancy worldwide and severe anaemia can have very serious consequences for mothers and babies. A striking increase in one of these proteins in severe iron deficiency may be mistaken for a monoclonal protein.

What is this protein?
a. albumin
b. transferrin
c. haptoglobin
d. α1-antitrypsin
e. prealbumin

Inherited Cholesterol Disorder Significantly Boosts Heart Risks

People who inherit a genetic disorder that causes high levels of "bad" LDL cholesterol have an increased risk for heart disease and hardened arteries, a new study finds.

The condition is called heterozygous familial hypercholesterolemia. It's believed to affect about 1.5 million people in the United States, the researchers said.

The genes linked to this condition prevent the liver from removing LDL (low-density lipoprotein) cholesterol from the blood. This allows the bad cholesterol to build up. Doctors suspect this familial condition when LDL levels are above 190 milligrams per deciliter (mg/dL), the study authors explained.



MCQ 6. A Male Patients with Proven Coronary Disease


MCQ 6. A very high percentage of male patients with proven coronary disease and/or raised lipid levels had an increased level of "pre-beta" lipoproteins in their blood.

What is also referred to as these lipoproteins?
a. HDL
b. VLDL
c. LDL
d. Lipo B

Gallbladder Problems: Signs, Symptoms, Treatments and Outlooks

Most people don't pay much attention to their gallbladder until it starts causing trouble. However, when the gallbladder starts acting up, it can be quite painful and require immediate action.

This article will look at what the gallbladder does, the symptoms of a problem with the gallbladder, treatment options, and long-term outlook.

What is the gallbladder?
The gallbladder is a 4-inch-long pear-shaped organ found under the liver in the upper right quadrant of the abdomen. It stores the bile the liver makes to digest fat.

The gallbladder is found just below the liver. Its job is to store bile used to digest fat.

Friday, July 1, 2016

Gene Mutation 'Hotspots' Linked to Better Cancer Outcomes

Patients with the mutations tended to survive longer and had tumors more susceptible to aggressive treatment.

Breast cancer patients with groups of mutations clustered in their genome have better outcomes than patients without them, researchers found in a recent study.

More than half of breast cancer patients have clusters of genetic mutations called kataegis, and their cancer tends to be less invasive, offering better opportunities for effective treatment, according to researchers at the University of California San Diego.


Although researchers are unsure of how the clusters of genetic mutations called kataegis occur,
but cancer patients who have them in tumors tend to respond better to treatment and have better
outcomes, according to a recent study.
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