pH News and Research

RSS

pH comes from the term “power of Hydrogen”, or the hydrogen ion concentration present in a given solution. It helps to measure the acidity or alkalinity of a substance.

Hybrid gold-dendrimer nanoparticles target and image tumors

Dendrimer nanoparticles, made of spherical, highly branched polymers, have shown promise as drug delivery vehicles capable of targeting tumors with large doses of anticancer drugs.

14 Jun 2007

Researchers create first 3-D optical images of human breast cancer in patients based on tissue fluorescence

Fluorescence diffuse optical tomography, or FDOT, relies on the presence of fluorophore molecules in tissue that re-radiate fluorescent light after illumination by excitation light of a different color.

14 Jun 2007

Low potassium levels linked to increased mortality in heart failure patients

New research from University of Alabama at Birmingham indicates that patients with heart failure who have low to low-normal serum potassium levels are at increased risk of death.

8 Jun 2007

New understanding of anti-malarial drug resistance

Researchers at Georgetown University Medical Center say they are moving closer to understanding why the most lethal form of human malaria has become resistant to drug treatment in the past three decades.

8 Jun 2007

Dietary vitamin B6. B12 and folate, may decrease pancreatic cancer risk among lean people

Researchers exploring the notion that certain nutrients might protect against pancreatic cancer found that lean individuals who got most of these nutrients from food were protected against developing cancer.

3 Jun 2007

Scientists provide insight into how organisms adapt to changing environmental conditions and fluctuations

Forthcoming in Physiological and Biochemical Zoology, a fascinating new selection of papers collects leading experimental research in evolution and artificial selection, providing insight into how organisms adapt to changing environmental conditions and fluctuations.

30 May 2007

FDA approves treatment for bacterial vaginosis

Mission Pharmacal has announced that the U.S. Food and Drug Administration (FDA) approved Tindamax (tinidazole) for the treatment of bacterial vaginosis (BV), the most common vaginal infection among women of childbearing age in the United States.

28 May 2007

New smart pill helps diagnose stomach problems

People with the chronic stomach condition known as gastroparesis, or slow stomach emptying, live in fear that eating will cause an episode of nausea, vomiting and abdominal pain.

24 May 2007

Effects of Taser on human health

Using a Taser to control agitated suspects in police custody is standard operating procedure for many law enforcement agencies.

18 May 2007

Innovative drug-delivery system for rotavirus vaccine

A thin strip that dissolves in the mouth like a popular breath-freshener could someday provide life-saving rotavirus vaccine to infants in impoverished areas.

17 May 2007

U.S. health care system ranks last compared with five other nations on measures of quality, access, efficiency

The U.S. health care system ranks last compared with five other nations on measures of quality, access, efficiency, equity, and outcomes, in the third edition of a Commonwealth Fund report analyzing international health policy surveys.

16 May 2007

Higher dietary intake of fiber and magnesium may be associated with a lower risk of type 2 diabetes

Higher dietary intake of fiber from grains and cereals and of magnesium may each be associated with a lower risk of type 2 diabetes, according to a report and meta-analysis in the May 14 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.

15 May 2007

Calcium plus vitamin D may help prevent weight gain in postmenopausal women

Postmenopausal women who take calcium and vitamin D supplements may gain less weight than those who do not, although the overall effect is small, according to a report in the May 14 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.

15 May 2007

Honey for diabetic ulcers

The sore on Catrina Hurlburt's leg simply wouldn't heal. Complications from a 2002 car accident left Hurlburt, a borderline diabetic, with recurring cellulitis and staph infections.

4 May 2007

Radiation for breast cancer not likely to increase heart attack risk

In 1973, two researchers published an article in the journal Lab Investigation saying that radiation to the breast area might damage the capillaries and restrict blood flow to the heart.

4 May 2007

FDA issues "Critical Path Opportunities for Generic Drugs"

The U.S. Food and Drug Administration (FDA) today issued the "Critical Path Opportunities for Generic Drugs" report identifying many of the unanswered scientific questions that impede the development of generic versions of commonly used drugs.

4 May 2007

New way to target and potentially treat tumors

Research teams at Yale University and the University of Rhode Island have demonstrated a new way to target and potentially treat tumors using a short piece of protein that acts like a nanosyringe to deliver tags or therapy to cells, according to a report in the Proceedings of the National Academy of Sciences.

2 May 2007

Researchers use bacterium to obtain biopreservatives from food

The research group "Estudio de sustancias antagonistas producidas por microorganismos" (Antagonistic substances produced by microorganisms), part of the Microbiology Department of the University of Granada, has succeeded in isolating enterocin AS-48, which could have a medium-term use as food biopreservative.

18 Apr 2007

Researchers develop technique to concentrate, manipulate and separate a wide class of swimming bacteria

The technique is based on the transmission of tiny electric current in a very thin film sample cell containing a colony of bacteria. The current produces electrolysis that changes the local pH level in the vicinity of the electrodes.

18 Apr 2007

Bacteria barge inside guard cells and initiate a powerful immune response

Immune cells that are the body's front-line defense don't necessarily rest quietly until invading bacteria lock onto receptors on their outside skins and rouse them to action, as previously thought.

18 Apr 2007