Biomedical Laboratory Science

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Tuesday, June 28, 2016

Do You Know All The Chemicals In Cigarette Smoke? Most People Don’t

Cigarette smoke is packed with thousands of chemicals, but most people aren’t even aware of them.

There are some 4,800 chemicals in cigarette smoke, many of which are carcinogens — yet the majority of people who smoke don’t realize what they’re inhaling. A new study published in the journal BMC Public Health argues that making information about cigarette smoke more available to consumers could improve public health and awareness about the dangers of smoking.

“The majority of the [United States] public wants easy access to information about chemicals in cigarettes and other tobacco products,” said Marcella Boynton, lead author of the study, in a press release. “Surprisingly, our results reveal that groups one might presume to be the least psychologically motivated to look for this information, young adults and smokers, were more likely to say that they had previously looked for this information.”




Source: healthguru

Borderline Diabetes: What You Need to Know

The term borderline diabetes refers to a condition called prediabetes. Prediabetes is a condition in which blood sugar levels are higher than normal but not high enough to be classed as type 2 diabetes.

Prediabetes is to be considered a risk factor for type 2 diabetes. It is estimated that 10 to 23 percent of people with prediabetes will go on to develop type 2 diabetes within 5 years.

Prediabetes can be accompanied by other risk factors. It is associated with conditions such as obesity, especially abdominal obesity, high blood pressure, high blood fat levels and low levels of "good" cholesterol.

When these risk factors "cluster" together in a person, there is a higher risk of not just type 2 diabetes but heart disease and stroke as well.



Monday, June 27, 2016

Automated Analyzers Add Efficiency to Laboratory Testing

Automation, broadly defined, is the mechanization of the steps in a procedure. Through mechanization of analyses there is increased reproducibility of results. Automation allows a reduction of human error and laboratory expenses, which is important in these economic times, as laboratories are challenged with budgetary constraints.

In 1957 the first completely automatic method for colorimetric analysis was reported,1 and then the analytical system used was brought to the market as the AutoAnalyzer by the company Technicon. Since then, continuous scientific and technological advances as well as developments in robotics and information technology have led to the introduction of the wide range of automated analyzers currently in the market, which can be applied to different working laboratory environments. Though automation reduces the hands-on intervention and the time needed to set up, run, and analyze results, human intervention is still required for loading/unloading, operation, and instrument maintenance, as well as for the interpretation of results.




Source: RocheDiagnosticsUSA

The Current State of Diagnostics for Meningitis and Encephalitis

Infections of the central nervous system (CNS) such as meningitis or encephalitis can be caused by myriad microorganisms and may be life-threatening. Patients with acute CNS infections generally present with similar findings of fever, headache, and neurological changes. Given the similarity in symptomology, it is often difficult to distinguish bacterial and viral infection based on clinical presentation alone. As a result, obtaining a rapid and accurate diagnosis is important for proper patient management. Indeed, rapid identification of CNS pathogens is critical for antimicrobial treatment in cases of bacterial or herpes simplex virus (HSV) infection. Any delays in appropriate therapy can lead to poor patient outcomes, including death.

The aim of this Continuing Education article is to review the current landscape for diagnostic testing of cerebrospinal fluid (CSF) in acute CNS infections, present the potential impact of rapid identification, and discuss methods to increase the diagnostic yield in uncertain cases. It is anticipated that new technologies will aid in providing rapid and accurate pathogen identification, potentially leading to better patient outcomes, improved antimicrobial stewardship, and decreased hospital costs.


Source: pbs.twimg

Scientists Offer New View on Origins of Parkinson's Disease

The death of brain cells in Parkinson's disease is likely a result of stress in their endoplasmic reticulum or protein-folding machinery rather than just a general failure of their mitochondria or powerhouses.

So conclude researchers from the University of Leicester in the United Kingdom, who report their findings, based on research conducted in fruit flies, in the journal Cell Death and Disease.

Dr. Miguel Martins, who heads a group in the MRC Toxicology Unit at Leicester, says:

"This research challenges the current held belief the Parkinson's disease is a result of malfunctioning mitochondria."



Major Breakthrough in Lab-Grown Human Embryos

Scientists reported Wednesday they had grown human embryos in the lab for nearly two weeks, an unprecedented feat that promises advances in assisted reproduction, stem-cell therapies and the basic understanding of how human beings form.

Besides opening a window onto the first steps in the creation of an individual, the findings in parallel studies may help explain early miscarriages and why in vitro fertilization has such a high failure rate.

The research also showed for the first time that newly-forming human embryos can mature beyond a few days outside a mother's womb, something that was previously thought to be impossible.

But the widely hailed results also set science on a collision course with national laws and ethical guidelines, experts cautioned.



Scientists report that they have grown human embryos in the lab for nearly two weeks, a breakthrough
likely to provide a boost to research on the use of embryonic stem cells to treat certain diseases
Source: AFP

Sunday, June 26, 2016

New Method Developed for Detecting Mycobacteria in the Lungs

A research team from the Institute of Medical Microbiology at the University of Zurich and the National Center for Mycobacteria has carried out a large-scale study with more than 6800 patient samples to examine molecular-based methods for the detection of mycobacterial pathogens. Because many mycobacteria only grow at a slow pace, routine detection using bacteria cultures in highly specialized and expensive high-safety labs takes several weeks to complete. The subsequent susceptibility test to determine the appropriate medicine also takes 1 to 2 weeks.

"For patients and doctors, this long waiting period is an unnecessary test of their patience", says Peter Keller, M.D., from the Institute of Medical Microbiology at the UZH. "By comparison, with molecular detection methods, most patients know after 1 or 2 days whether they have an infection with tuberculosis pathogens or with nontuberculous mycobacteria."

Mycobacteria cause various illnesses. Mycobacterium tuberculosis, the main representative of this genus, is the causative agent of tuberculosis, which killed around 1.5 million people worldwide in 2014.


Mycobacterium tuberculosis in patient samples.
Source: genengnews

Breast Cancer Treatment Breakthrough After 'Milestone' Genetic Discovery

The latest breast cancer research could lead to more personalized care for patients and help further understanding of the causes of the disease, scientists said.

A study involving people from around the world has been hailed as giving a more complete picture of the changes in DNA in breast cancer, providing potential opportunities for new treatments.

A study of 560 breast cancer genomes, or complete genetic codes, turned up five new genes associated with the disease.



High-Fiber Diet Alters Gut Bacteria to Protect Against Food Allergy

A high-fiber diet rich in vitamin A may alter gut bacteria in a way that could prevent or reverse food allergies. This is the finding of a new study published in the journal Cell Reports.

It is estimated that around 15 million people in the United States have food allergies, and this number is increasing.

According to the Centers for Disease Control and Prevention (CDC), between 1997-2007, the number of children and adolescents in the U.S. with food allergies rose by around 18 percent, though the reasons for this are unclear.

Eight food types account for around 90 percent of all food allergies. These are peanuts, tree nuts, egg, milk, wheat, soy, fish, and shellfish.

Allergic reactions to food vary from person to person, but they may include tingling or itching in the mouth, hives, nausea or vomiting, stomach pain, and diarrhea.


Researchers say a high-fiber diet enriched with vitamin A shows promise for reducing the risk of
food allergy.

CLIA and regulatory readiness: How can your lab always be ready?

Much has been written about laboratory regulations and the regulatory process. Why publish another article now? Changes to the healthcare environment in the United States over the past few years have left hospitals and laboratories asking questions about resources. How does the laboratory continue to provide quality service to patients and practitioners while reimbursements decrease? How do regulatory requirements fit into this same picture? How can the laboratory stay ahead of new regulations?

Many laboratories do maintain readiness throughout the inspection cycle. These facilities share common traits. This article will identify success strategies when dealing with regulatory compliance. In general, these strategies fall into three categories: 1) knowledge, 2) awareness, and 3) good management practices.


Source: aapc
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