A compound from olive-pomace oil gets 80 percent slowing down of HIV spread
...in the fight against AIDS are simultaneously being studied in the UGR and in Hospital Carlos III in Madrid by a team headed by Prof. Vallejo Njera. Maslinic acid innovative properties stem from its powerful protease-inhibition activity, allowing researchers from Granada to register two patents on behalf ...Rapid evolution of defense genes in plants may produce hybrid incompatibility
...roduce. Although speciation has been observed and studied since Darwin and Wallace first proposed their theo...f these molecular mechanisms, hybrid necrosis, was studied by Dr. Detlef Weigel and his colleagues at the Max Planck Institute for Developmental Biology in Ger...Highlights from the July 2007 Journal of the American Dietetic Association
...l below recommended guidelines. The researchers studied data from the National Heart, Lung and Blood Institutes National Growth and Healthy Study of nearly 1,200 white girls and more than 1,200 African-American girls to determine their usual daily intakes of vitamins A, E, C, D, B6, B12, magnesium, folate...Elevated CO2 in atmosphere weakens defenses of soybeans to herbivores
...uated this herbivorous attack-defense cycle. They studied soybeans grown in traditional field conditions but with additional exposure to ambient CO2. The results showed that the amount of cysteine proteinase inhibitors (CystPls) expressed in the genes decreased when soybeans were exposed to elevated CO2. ...Chronic fatigue -- clues in the blood
...entre for Infection and Inflammation Research, has studied the differences in gene expression patterns in the...NSW town in which the work was conducted. The team studied the expression of 30,000 genes in the blood, testing each of the 15 individuals between four and fiv...MU researchers make discovery in molecular mechanics of phototropism
... said. Liscum and doctoral student Ullas Pedmale studied the regulation of phototropic signaling in Arabidopsis thaliana, a weedy flowering plant commonly used as a model in laboratory studies. Focusing on non-phototropic hypocotyls 3 (NPH3), a protein known to be essential for phototropic responses, they ...Tracing Parkinson's lethal mechanism
...Neuron, published by Cell Press. The researchers studied the mechanism of PD using a mouse model of the disease, in which a mitochondria-affecting toxin called MPTP is used to produce Parkinsons-like brain pathology. In earlier studies, they had found that MPTP activates protein-snipping enzymes called cal...Complex ART procedures more likely to lead to umbilical cord abnormality
...e frequent after assisted reproduction. The team studied data from the East Flanders Prospective Twin Survey (EFPTS), containing information on all multiple births in the region since 1964. Since assisted reproduction was rather rare until the mid-eighties, said Mrs. Delbaere, we analysed twins born betw...Wolves of Alaska became extinct 12,000 years ago, scientists report
...zed DNA samples, conducted radio carbon dating and studied the chemical composition of ancient wolves at the ...th fractures, she said. Van Valkenburgh has also studied tooth fractures in ancient animals at Los Angeles Rancho La Brea Tar Pits and in modern lions, tiger...'Sundried tide' -- silent, natural disaster
Australian researchers have studied and documented the effect of the "sundried tide", a force of nature that can silently wipe out coral reefs. Their analyses have revealed for the first time that these are highly predictable events that can seriously impact the state of coral reefs...New research holds promise for protecting cancer patients against infertility
...ion, and in IVF therapies. Dr. Stern and her team studied women between the ages of 18 and 35 years who were due to receive high doses of cyclophosphamide, a chemotherapy drug. They knew that GnHR analogues were already used for the temporary suppression of ovulation in infertility treatment, so reasoned ...Manganese levels increase in scrapie-infected sheep before clinical symptoms develop
...arm animals infected with prion diseases have been studied in this way. One of the most interesting findings from this study came from the analysis of blood samples from scrapie-resistant sheep. When challenged with the disease, these sheep showed similar levels of manganese as non-resistant sheep challe...Researchers discover method for identifying how cancer evades the immune system
...ey anti-immunity genes, which tumors promote. They studied the expression of these genes in five mouse tumor models for breast cancer, leukemia, colon cancer, lung cancer and renal cell carcinoma. They then compared two of these immune signatures with corresponding human tumors, eight cases of human ductal c...JCI Table of Contents -- July 2, 2007
...fection for longer than their peers. The authors studied 189 adults in London that had been in contact with TB and evaluated them for evidence of TB infection. They found that the risk of TB infection was inversely associated with the number of peripheral blood neutrophils in exposed individuals. The abili...... new combined approach, any suspect lesions can be studied with MRS, with no need for an invasive biopsy. Spectroscopy can be used to test for any number of chemical compounds. In this case, it is measuring the amount of choline in suspect lesions. Elevated levels of choline are a strong indicator of cancer....The Cancer Genome Atlas awards funds for technology development
...ly, preventing cancer. The types of tumors being studied in the pilot include brain cancer (glioblastoma), ovarian cancer and lung cancer (squamous cell), which together account for more than 200,000 cases of cancer in the United States each year. In addition to the detailed genomic data it will generat...1,000-year-old Arctic ponds disappearing due to global warming
...n Smol, Professor of Biology at Queens University, studied these unique Arctic ponds for the past 24 years, collecting detailed data such as water quality and water levels from approximately 40 ponds. Collectively, this data represents the longest record of systematic limnological (the science of the propert...Tick-related disease thrives on cholesterol, study suggests
... In the current study, Rikihisa and her colleagues studied two groups of mice. Animals in one group lacked a protein important for maintaining normal blood cholesterol levels, while mice in the other group had this protein, called apoliprotein E (apoE). For about a month several mice from each group ate a ...New approaches to endometriosis treatment -- mouse experiments point the way
...m the Valencia Infertility Institute (IVI), Spain, studied Vascular Endometrial Growth Factor (VEGF), which is known to be particularly involved in the angiogenesis process and therefore in the development of endometriosis. They created an experimental model of endometriosis in nude mice in order to test wh...Doing nature one better: Expanding the genetic code in living mammalian cells
...an cells. But most biomedical questions have to be studied in the cells of higher organisms and animal models to arrive at meaningful answers, explains Lei Wang, Ph.D., an assistant professor in the Chemical Biology and Proteomics Laboratory, who led the current study published in the July issue of Nature Ne...