Popular Articles

Fresh Meats Often Contain Additives Harmful To Kidney Disease Patients
Uncooked meat products enhanced with food additives may contain high levels of phosphorus and potassium that are not discernable from inspection of food labels, according to a study appearing in an upcoming issue of the Clinical Journal of the American Society Nephrology (CJASN). This can make it difficult for people to limit dietary phosphorus and potassium that at high levels are harmful to kidney disease patients.

Maryland County Officials Create State's First Suburban HIV/AIDS Commission
Anne Arundel County, Md., Executive John Leopold recently appointed 20 community leaders, government officials and health workers to serve on the county"s first HIV/AIDS commission, which aims to understand and develop strategies for addressing the disease, the Baltimore Sun reports. The Sun reports the commission is believed to be the first of its kind in a suburban Maryland county and similar to a commission launched in Baltimore City. Council member Daryl Jones in 2008 proposed legislation to create the commission, citing the increasing number of HIV cases in the northern part of the county, likely because of its close proximity to Baltimore. According to Jones, the commission aims to generate funds for testing and outreach services; address stigma associated with the disease; and heighten awareness of the virus among residents. The commission also will produce an annual report on HIV/AIDS-related issues in the county, Jones said. Anne Arundel County had 1,000 recorded HIV/AIDS cases in 2006, with 56 newly reported HIV cases that year, according to the Maryland AIDS Administration. "It"s pretty much what I would classify as having the potential to reach epidemic proportions," Jones said, adding that Baltimore has the second highest AIDS rate among major metropolitan areas in the country. According to Kelly Sipe Russo, a physician clinical specialist with the county health department"s division of public health, the department has identified "hot spots" in the county with high HIV/AIDS rates, including the northern area and Annapolis. Russo noted that while HIV/AIDS rates in the county are not on the rise, they also are not declining, even with programs in place to increase awareness and provide help for those living with the disease. According to the Sun, although res and staffing are limited for many programs, health department officials still believe the programs are slowly having an effect and that more outreach is needed, especially for testing and treatment. Jones said that the economic downturn could lead more people to drug or alcohol use. He also noted that the stigma surrounding the disease is a major factor behind the creation of the commission. "Part of what the commission will address is figuring out ways to take away some of the fear factor" associated with HIV testing, he said. The Sun also profiled Carolyn Massey, an HIV-positive woman appointed to the commission. She said that stigma associated with the virus still is widespread, adding, "I feel we"re doing some of the right things the right way. HIV infection is something that does not have to happen" (Dixon, Baltimore Sun, 5/18).
News of the day
Promising Antimicrobial Attacks Virus, Stimulates Immune System
A promising antimicrobial agent already known to kill bacteria can also kill viruses and stimulate the innate immune system, according to researchers at National Jewish Health. In a paper appearing online June 4 in the Journal of Investigative Dermatology, Michael Howell, PhD, Assistant Professor of Pediatrics, and his colleagues demonstrated that the synthetic compound CSA-13 can kill vaccinia virus in cell cultures and in mice. Additionally, they showed that CSA-13 stimulates cells to produce their own antimicrobial proteins.
Diagnostics

Sufferers Of Lung Diseases May Be Helped By Placenta-Derived Stem Cells

An Italian research team, publishing in the current issue of Cell Transplantation (18:4), which is now available on-line without charge at http://www.ingentaconnect.com/content/cog/ct, has found that stem cells derived from human placenta may ultimately play a role in the treatment of lung diseases, such as pulmonary fibrosis and fibrotic diseases caused by tuberculosis, chemical exposure, radiation or pathogens. These diseases can ultimately lead to loss of normal lung tissue and organ failure. No known therapy effectively reverses or stops the fibrotic process. Placenta-derived stem cells are known to be able to engraft in solid organs, including the lungs. Human term placenta stem cells also demonstrate characteristics of high plasticity and low immunogenicity. "The potential application of fetal membrane-derived cells as a therapeutic tool for disorders characterized by inflammation and fibrosis is supported in previous studies," says Dr. Ornella Parolini, the study"s lead author. "In line with the hypothesis that cells derived from the amniotic membrane have immunomodulatory properties and have been used as an anti-inflammatory agent, we set out to evaluate the effects of fetal membrane-derived cell transplantation in chemically-treated (bleomycin) mice." According to Dr. Parolini, cells delivered via intra-peritoneal transplant, regardless of the cells being allogenic or xenogenic (host"s own cells or from another individual respectively), the procedure resulted in a significant anti-fibrotic effect on the lab animals. A "consistent" reduction in lung fibrosis, says Dr. Parolini, "provides convincing proof" that placenta-derived cells do confer benefits for bleomycin-induced lung injury. While the severity of inflammation did not show an overall reduction, there was a marked reduction in neutrophil (white blood cell) infiltration after both xeno-and-allo-transplantation. "It is worth noting," says Dr. Parolini," that the presence of neutrophils is associated with poor prognosis for several lung diseases. However, the mechanism by which placenta-derived cells might affect infiltration by neutrophils is not known." The researchers speculated that these cells may produce soluble factors that induce anti-inflammatory effects. "Our findings suggest that fetal membrane-derived cells may prove useful for cell therapy of fibrotic diseases in the future," concludes Dr. Parolini. Dr. Cesar Borlongan, of the University of South Florida and associate editor for Cell Transplantation, notes that the present study adds an important application of placenta cells, indicating their therapeutic effects in lung diseases. The cells" ability to reduce neutrophils possibly via secreted anti-inflammatory factors implies their use either as autografts or allografts, thereby increasing the numbers of the target patient population. Ornella Parolini Cell Transplantation Center of Excellence for Aging and Brain Repair


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