Exposure to secondhand smoke greatly enlarge a child's chances of developing several invasive bacterial diseases, according to a new appraisal of published studies. The risk was found to be particularly strong for children 6 years old and younger. Exposure to secondhand smoke double the risk for enveloping meningococcal disease, the analysis found, and may also enlarge the chances of developing invasive pneumococcal disease and Haemophilus influenza type B. The result, which came from an analysis of 42 studies, most conduct in high income countries with good immunization policies, are published online in PLoS Medicine.
The results suggest that decreasing children's experience to secondhand smoke could decrease the number of illness and deaths caused by these diseases, particularly in poor countries with low rates of vaccination against enveloping bacterial diseases, according to study author Chien Chang Lee of the Harvard School of Public Health and fellow researchers. "Because the burden of invasive bacterial disease is top in developing countries where secondhand smoke is rising, there is a need for high quality studies to prove these results and for interventions to decrease exposure of children to secondhand smoke," they said in a journal news release.
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Dialysis patients face a higher risk for sudden cardiac death but physicians are still unclear as to why these deaths happen. Rod Passman, a researcher from Northwestern University's Feinberg School of Medicine in the US, is working on how to avoid sudden cardiac death among this rapidly growing patient population. "Dialysis patients have extraordinarily high humanity rates with cardiac disease accounting for 43 per cent of deaths in this population," said Passman. "Data indicates that about 27 per cent of the mortality is due to sudden cardiac death," said Passman, associate professor of cardiology at the school of medicine.
"The lack of research complicates clinicians' capability to understand the connection between renal disease and cardiovascular disease. The medical community needs to stop neglect this community of patients because it is a rapidly growing group," said Passman. "Risk of cardiac capture in dialysis patients is connected to age and dialysis duration," said Passman, according to a Feinberg School of Medicine release. "A study by the United States Renal Disease Data System (USRDS) indicate longer dialysis duration is linked with higher mortality," he said. "This data also leads us to believe that end stage renal disease is a primary advocate of cardiac disease and enlarged risk for sudden cardiac death," said Passman.
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A preliminary Danish study suggests that the deposits could point to an enlarged risk for heart attack, arterial disease and early death. Half of patients with such deposits, a circumstance called xanthelasmata, really have normal cholesterol levels. The research team therefore believes that buildup of cholesterol on the eyelid is maybe an indicator for cardiac risk, regardless of a patient's cholesterol profile. "In society where other cardiovascular disease risk factors can't be willingly measured, presence of xanthelasmata may be a useful forecaster of underlying atherosclerotic disease," the study author said in an American Heart Association news release.
Led by Mette Christoffersen of Copenhagen University Hospital and the University of Copenhagen in Denmark, the investigate team was to there the findings Sunday at the AHA's annual meeting in Chicago. In their study, the team tracks the health of nearly 13,000 patients who were inspecting for the presence of such eyelid deposits. The researchers found that those with the situation had a higher rate of heart disease and heart attack as they got older, and a poorer endurance rate as compared with those who did not have the condition. Specifically, xanthelasmata was connected to a 51 percent hit in the risk for a heart attack and a 40 percent rise in the risk for ischemic heart disease. The danger for death rose by 17 percent among such patients. Experts point out that research obtainable at meetings typically does not go through the tougher inspection of studies published in respected journals.
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A study has recognized an association between detection of hypertension and death rates from coronary heart disease. The University of Leicester study has also exposed that the country you live in could influence your risk of dying from a heart attack. The Leicester team, analysed whether difference in deaths between different place of the country could be explained by individuality of primary health care services (such as numbers of doctors, presentation against national targets), as well as by characteristics of the population, such as lack, lifestyle (such as smoking), or the numbers of people with diabetes.Lead research and statement author Steve Levene, of the University of Leicester, said: "We found that population characteristics were most significant, including deprivation; however, 10 per cent of the variation was also explain by how successful primary care services are at notice people who have high blood pressure (hypertension). People who have hypertension are at larger risk of having heart attacks." "We found that senior proportions of white individuals, superior levels of deprivation, higher levels of diabetes, top proportions of smokers, and lower levels of detected hypertension were connected with higher levels of coronary heart disease mortality."This is important because it recommend ways in which we can decrease deaths from coronary heart disease. Greater detection of hypertension may decrease deaths from heart attacks," he said. Levene said the new study was significant since it shows a practical way to reduce deaths from heart attack that can be implementing now at a comparatively lower cost. It also suggested that medical practitioners and policy makers need to make better contact with the whole population, rather than presently those individuals whose diseases are known about.
New researches suggest that lung cancer in people who have never smoked may be a dissimilar disease than it is in smokers. Scientists compare the genetic characteristics of lung cancer tumors in 30 people who not at all smoked to tumors in 53 smokers or former smokers. The tumors of people who had not at all smoked had twice as many DNA abnormalities as people who were present or former smokers, said study author Kelsie Thu, a doctoral applicant at the British Columbia Cancer Research Centre in Vancouver. "This is telling there might be incredible different going on with tumors in never smokers," Thu said. "If we find out lung cancer in never smokers is a different disease and we can recognize what those differences are, maybe we can design specific therapies that goal the genetic alterations in never-smokers and improve the prognosis." The study was to be obtainable Monday at the American Association of Cancer Research's annual meeting, in Philadelphia. Lung cancer is the foremost cause of cancer death in the America for men and woman, according to the American Cancer Society. Lung cancer will kill a predictable 157,000 Americans this year. But it's not now smokers who get it lung cancer is the seventh foremost cause of cancer deaths among people who have not at all smoked, Thu said. Dana Reeve, wife of the late Christopher Reeve, died in 2006 at age 44 from lung cancer. She had not at all smoked. Prior research has oblique that lung cancer tumors in never-smokers are different than the tumors in smokers. Compare to former and present smokers with lung cancer, never-smokers with lung cancer lean to be diagnosed younger, are more likely to be women and are extra likely to have adenocarcinomas, the majority common type of cancer. Every one of the lung cancer patients in the study had adenocarcinoma. People who never smoked are also more likely to have a change in the epidermal growth issue receptor (EGFR) gene.
A data compilation published in The Lancet medical journal reveals that Malaria, the disease that cause the deaths of just about 1.2 million people around the globe every year, could be erased in the next 10 to 15 years. Scientists have examine the Malaria causing parasite Plasmodium falciparum over five years and found out that it is expected to vanish within the next decade and a half, as extended as transmission rates can significantly be reduced. If 90% of transmission cases would reduce, the organism would possibly become extinct. According to the current research findings, it is most probable for developed countries such as Brazil to get rid of Malaria as sanitary and governmental conditions allow confine the disease.
University of Florida in Gainesville member and co author of the study, Dr Andrew Tatem, explains: "In general, removal from countries in the Americas is most feasible using current tools, and least possible for most sub-Saharan countries." Malaria gets mostly transmit by mosquitoes and 90% of Malaria deaths occur on the African continent. That is why it is least probable for countries like Angola, Chad or Somalia to fight the disease, as scarcity rates and unstable governing previously represent tough challenges for its population.
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A new review of many studies has found some evidence linking heavy alcohol use to accelerated HIV disease progression. In particular, alcohol use influences how dependably people take their medication, which can affect HIV progression. However, it is still unclear whether alcohol affect sequence independently of antiretroviral adherence. “There is strong evidence that alcohol use interferes with antiretroviral therapy adherence. The more a person drinks alcohol, the extra medication he/she misses,” said Professors Judith Hahn and Jeffrey Samet, the authors of the appraisal, in correspondence with The AIDS Beacon.
“Suboptimal obedience to these medications can cause HIV to become opposed to and for the treatment regimen to fail,” they added. However, whether alcohol affects disease progression separately of missed antiretroviral drug doses is more controversial. Scientists have extensive speculated that alcohol and drug use affect the rate of HIV progression. Alcohol is known to have oppressive effects on the immune system, and illegal drug use has been linked to faster progression. However, the role of alcohol in HIV progression has remained elusive. “While many studies conduct in the early 1990s found no link between alcohol use and HIV disease progression, more recent studies have recommended that there is such a link,” said the authors.
To better recognize the connection between alcohol and disease progression, the authors of the review examine a number of studies from before and after the arrival of antiretroviral therapy, as well as animal studies where alcohol use was extra controlled. Results show that prior to the advent of highly active antiretroviral therapy (HAART), studies found no association between heavy alcohol consumption and HIV disease progression. However, more fresh studies from the post-HAART era have been inconclusive. Three of the six studies from the post-HAART era included in the review established an association between heavy alcohol use and at least one measure of HIV disease series, such as higher viral load, lower CD4 count, opportunistic infections, or death.
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Prolonging first-line chemotherapy in metastatic breast cancer delays disease progression and rate of death, according to the results of a meta-analysis presented here at the 35th European Society for Medical Oncology Congress. "Our review suggests that longer duration of first-line chemotherapy, until disease progression or for a predetermined number of cycles, shows a 36% decrease in the rate of disease progression," said lead author Alessandra Gennari, MD, a medical oncologist from Galliera Hospital in Genova, Italy.
"This was clinically significant and statistically significant, and there was a 9% decrease in the rate of death," she told Medscape Medical News. The optimum duration of first-line chemotherapy is motionless poorly defined. Dr .Gennari explained that in the United States, chemotherapy is regularly administered until disease progression, but in Europe, practice is unclear. "Many European oncologists stop chemotherapy after a predetermined number of cycles, with period of chemotherapy dictated by patient tolerability, responsiveness, and physician preferences."
"The first thing patients ask when they get chemotherapy is, 'How long must this treatment continue?' and the best reply we can give is, 'As long as you can cope with it,' " Dr. Gennari emphasized. "We know that if we stop chemotherapy then the disease will development, but if we prolong therapy then, of course, disease will progress sooner or later, but we know it will really be later," The US National complete Cancer Network guidelines state that: "Due to the lack of overall endurance differences, the use of protracted versus shorter chemotherapy needs to be weighted beside the detrimental effects of incessant chemotherapy on overall quality of life."
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