So you think modern medicine has the whole virus game figured out? Think again. And it's not even a question of "if" we'll be hit by some new and deadly disease?it's "when."
The war on germs is being ...fought on many fronts?from the skirmishes with disease-carrying mosquitoes that cross oceans hidden away in airline wheel wells to the high-profile battle against terrorists wielding deadly bioweapons. Today's bold headlines would have us believe that the biggest threat comes from bioterrorism. But don't underestimate Mother Nature, perhaps the most savage bioterrorist of all. Assisted by the increasing ease with which people?and the germs they carry?move across international borders, she's an effective force to be reckoned with, a key player on this battlefield. As author Madeline Drexler makes clear, we'd do best not to ignore her.
Human beings and the pathogens that attack them are crossing paths more and more frequently, particularly as modern life grows increasingly complex. Whatever the infectious agent may be, whether it's pandemic flu, foodborne illness, a debilitating disease carried far and wide by biting insects, or some new microbial horror we have yet to detect, keen surveillance and rapid response are really the only weapons in our arsenal.
Secret Agents looks at today's new and emerging infections?those that have increased in attack rate or geographic range, or threaten to do so?and tells the stories of scientists racing to catch up with invisible adversaries superior in both speed and guile. Each chapter focuses on a different threat: foodborne pathogens, antibiotic resistance, animals and insectborne diseases, pandemic influenza, infectious causes of chronic disease, and bioterrorism, including the latest information on the public health threats posed by anthrax and diseases such as smallpox.
Based in part on material collected from the Forum on Emerging Infections hosted by the Institute of Medicine in Washington, D.C., Secret Agents is ultimately as engaging as it is disturbing. Drexler's thorough survey of the field of infectious disease, supplemented by extensive interviews with today's top researchers, yields a compelling portrait of a world engaged in a clandestine war.
Emerging infections are among the many secret ties that bind the world into an organic whole. We know that infectious disease is an inescapable part of life, but we need to begin thinking globally and acting locally if we are to avoid the menace of a catastrophic outbreak of some new plague. Secret Agents sounds a clear and compelling call to take up arms against the organic predators among us.
The Unequal Pandemic Bambra, Clare; Lynch, Julia; Smith, Katherine E.
06/2021
eBook
Odprti dostop
Rated as a top 10 book about the COVID-19 pandemic by New Statesman: https://www.newstatesman.com/culture/2021/07/best-books-about-covid-19-pandemic
EPDF and EPUB available Open Access under ...CC-BY-NC- ND
It has been claimed that we are ‘all in it together’ and that the COVID-19 virus ‘does not discriminate’.
This accessible, yet authoritative book dispels this myth of COVID-19 as an ‘equal opportunity’ disease, by showing how the pandemic is a syndemic of disease and inequality.
Drawing on international data and accounts, it argues that the pandemic is unequal in three ways: it has killed unequally, been experienced unequally and will impoverish unequally.
These inequalities are a political choice: with governments effectively choosing who lives and who dies, we need to learn from COVID-19 quickly to prevent growing inequality and to reduce health inequalities in the future.
COVID-19 is an unequal pandemic.
Recent progress in the field of wildlife disease ecology demonstrates that infectious disease plays a crucial role in the lives of wild animals. Parasites and pathogens should be especially important ...for social animals in which high contact among individuals increases the potential for disease spread. As one of the best studied mammalian groups, primates offer a unique opportunity to examine how complex behaviours (including social organization) influence the risk of acquiring infectious diseases, and the defences used by animals to avoid infection. This book explores the correlates of disease risk in primates, including not only social and mating behaviour but also diet, habitat use, life history, geography and phylogeny. The authors examine how a core set of host and parasite traits influence patterns of parasitism at three levels of biological organization: among individuals, among populations, and across species. A major goal is to synthesize, for the first time, four disparate areas of research: primate behavioural ecology, parasite biology, wildlife epidemiology, and the behavioural and immune defences employed by animals to counter infectious disease. Throughout, the authors provide an overview of the remarkable diversity of infectious agents found in wild primate populations. Additional chapters consider how knowledge of infectious diseases in wild primates can inform efforts focused on primate conservation and human health. More generally, this book identifies infectious disease as an important frontier in our understanding of primate behaviour and ecology. It highlights future challenges for testing the links between host and parasite traits, including hypotheses for the effects of disease on primate social and mating systems.
Many major human neurodegenerative diseases, including Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis (ALS), display axonal pathologies including abnormal accumulations ...of proteins and organelles. Such pathologies highlight damage to the axon as part of the pathogenic process and, in particular, damage to transport of cargoes through axons. Indeed, we now know that disruption of axonal transport is an early and perhaps causative event in many of these diseases. Here, we review the role of axonal transport in neurodegenerative disease.
As mortality rates decline, life expectancy increases, and populations age, non-fatal outcomes of diseases and injuries are becoming a larger component of the global burden of disease. The Global ...Burden of Diseases, Injuries, and Risk Factors Study 2016 (GBD 2016) provides a comprehensive assessment of prevalence, incidence, and years lived with disability (YLDs) for 328 causes in 195 countries and territories from 1990 to 2016.
We estimated prevalence and incidence for 328 diseases and injuries and 2982 sequelae, their non-fatal consequences. We used DisMod-MR 2.1, a Bayesian meta-regression tool, as the main method of estimation, ensuring consistency between incidence, prevalence, remission, and cause of death rates for each condition. For some causes, we used alternative modelling strategies if incidence or prevalence needed to be derived from other data. YLDs were estimated as the product of prevalence and a disability weight for all mutually exclusive sequelae, corrected for comorbidity and aggregated to cause level. We updated the Socio-demographic Index (SDI), a summary indicator of income per capita, years of schooling, and total fertility rate. GBD 2016 complies with the Guidelines for Accurate and Transparent Health Estimates Reporting (GATHER).
Globally, low back pain, migraine, age-related and other hearing loss, iron-deficiency anaemia, and major depressive disorder were the five leading causes of YLDs in 2016, contributing 57·6 million (95% uncertainty interval UI 40·8–75·9 million 7·2%, 6·0–8·3), 45·1 million (29·0–62·8 million 5·6%, 4·0–7·2), 36·3 million (25·3–50·9 million 4·5%, 3·8–5·3), 34·7 million (23·0–49·6 million 4·3%, 3·5–5·2), and 34·1 million (23·5–46·0 million 4·2%, 3·2–5·3) of total YLDs, respectively. Age-standardised rates of YLDs for all causes combined decreased between 1990 and 2016 by 2·7% (95% UI 2·3–3·1). Despite mostly stagnant age-standardised rates, the absolute number of YLDs from non-communicable diseases has been growing rapidly across all SDI quintiles, partly because of population growth, but also the ageing of populations. The largest absolute increases in total numbers of YLDs globally were between the ages of 40 and 69 years. Age-standardised YLD rates for all conditions combined were 10·4% (95% UI 9·0–11·8) higher in women than in men. Iron-deficiency anaemia, migraine, Alzheimer's disease and other dementias, major depressive disorder, anxiety, and all musculoskeletal disorders apart from gout were the main conditions contributing to higher YLD rates in women. Men had higher age-standardised rates of substance use disorders, diabetes, cardiovascular diseases, cancers, and all injuries apart from sexual violence. Globally, we noted much less geographical variation in disability than has been documented for premature mortality. In 2016, there was a less than two times difference in age-standardised YLD rates for all causes between the location with the lowest rate (China, 9201 YLDs per 100 000, 95% UI 6862–11943) and highest rate (Yemen, 14 774 YLDs per 100 000, 11 018–19 228).
The decrease in death rates since 1990 for most causes has not been matched by a similar decline in age-standardised YLD rates. For many large causes, YLD rates have either been stagnant or have increased for some causes, such as diabetes. As populations are ageing, and the prevalence of disabling disease generally increases steeply with age, health systems will face increasing demand for services that are generally costlier than the interventions that have led to declines in mortality in childhood or for the major causes of mortality in adults. Up-to-date information about the trends of disease and how this varies between countries is essential to plan for an adequate health-system response.
Bill & Melinda Gates Foundation, and the National Institute on Aging and the National Institute of Mental Health of the National Institutes of Health.
Humans have lived in close proximity to other animals for thousands of years. Recent scientific studies have even shown that the presence of animals has a positive effect on our physical and mental ...health. People with pets typically have lower blood pressure, show fewer symptoms of depression, and tend to get more exercise.But there is a darker side to the relationship between animals and humans. Animals are carriers of harmful infectious agents and the source of a myriad of human diseases. In recent years, the emergence of high-profile illnesses such as AIDS, SARS, West Nile virus, and bird flu has drawn much public attention, but as E. Fuller Torrey and Robert H. Yolken reveal, the transfer of deadly microbes from animals to humans is neither a new nor an easily avoided problem.Beginning with the domestication of farm animals nearly 10,000 years ago, Beasts of the Earth traces the ways that human-animal contact has evolved over time. Today, shared living quarters, overlapping ecosystems, and experimental surgical practices where organs or tissues are transplanted from non-humans into humans continue to open new avenues for the transmission of infectious agents. Other changes in human behavior like increased air travel, automated food processing, and threats of bioterrorism are increasing the contagion factor by transporting microbes further distances and to larger populations in virtually no time at all.While the authors urge that a better understanding of past diseases may help us lessen the severity of some illnesses, they also warn that, given our increasingly crowded planet, it is not a question of if but when and how often animal-transmitted diseases will pose serious challenges to human health in the future.
Toxic Proteins in Neurodegenerative Disease Taylor, J. Paul; Hardy, John; Fischbeck, Kenneth H.
Science (American Association for the Advancement of Science),
06/2002, Letnik:
296, Številka:
5575
Journal Article
Recenzirano
A broad range of neurodegenerative disorders is characterized by neuronal damage that may be caused by toxic, aggregation-prone proteins. As genes are identified for these disorders and cell culture ...and animal models are developed, it has become clear that a major effect of mutations in these genes is the abnormal processing and accumulation of misfolded protein in neuronal inclusions and plaques. Increased understanding of the cellular mechanisms for disposal of abnormal proteins and of the effects of toxic protein accumulation on neuronal survival may allow the development of rational, effective treatment for these disorders.
Paul Farmer has battled AIDS in rural Haiti and deadly strains of drug-resistant tuberculosis in the slums of Peru. A physician-anthropologist with more than fifteen years in the field, Farmer writes ...from the front lines of the war against these modern plagues and shows why, even more than those of history, they target the poor. This "peculiarly modern inequality" that permeates AIDS, TB, malaria, and typhoid in the modern world, and that feeds emerging (or re-emerging) infectious diseases such as Ebola and cholera, is laid bare in Farmer's harrowing stories of sickness and suffering. Challenging the accepted methodologies of epidemiology and international health, he points out that most current explanatory strategies, from "cost-effectiveness" to patient "noncompliance," inevitably lead to blaming the victims. In reality, larger forces, global as well as local, determine why some people are sick and others are shielded from risk. Yet this moving account is far from a hopeless inventory of insoluble problems. Farmer writes of what can be done in the face of seemingly overwhelming odds, by physicians determined to treat those in need. Infections and Inequalities weds meticulous scholarship with a passion for solutions—remedies for the plagues of the poor and the social maladies that have sustained them.
Neurodegenerative diseases (NDs) are age-dependent; among them, Alzheimer’s disease (AD) and Parkinson’s disease (PD) are the most frequent. Similarly, cerebrovascular damage can induce the ...development of vascular-related disorders that share common features with AD and PD, respectively, named vascular dementia (VD) and vascular parkinsonism (VP). To date, ND diagnosis is mainly clinical; therefore, since these disorders show similar symptoms, their correct discrimination may be difficult. We detected 23 ND-associated microRNAs (miRNAs) by literature mining and investigated their serum expression in a cohort of 139 patients including AD, PD, VD, and VP patients and healthy controls. TaqMan RT-PCR data showed that miR-23a upregulation was associated with an ongoing neurodegenerative process, similar to miR-22* and miR-29a, while let-7d, miR-15b, miR-24, miR-142-3p, miR-181c, and miR-222 showed an altered expression in Parkinson-like phenotypes, as well as miR-34b, miR-125b, and miR-130b in Alzheimer-like disorders. By computing logistic regression models and ROC curves, we identified signatures of neuro-miRNAs specific for each disease, showing good diagnostic performance. Interestingly, we found that miR-23a, miR-29a, miR-34b, and miR-125b exhibited a different distribution between exosomes and vesicle-free serum, suggesting a heterogeneity of secretion for these miRNAs. Our results suggest that miRNA signatures could discriminate in a non-invasive manner neurodegenerative disorders, thus improving clinical diagnoses.
Chronic alcohol exposure can lead to alcoholic liver disease,including hepatitis,cirrhosis and hepatocellular carcinoma,and chronic inflammation can simultaneously cause systemic medical ...illness.Recent evidence suggests that alcoholic liver disease is a predictor for liver-related diseases,cardiovascular disease,immunologic disease,and bone disease.Chronic inflammation in alcoholic liver disease is mediated by a direct inflammatory cascade from the alcohol detoxification process and an indirect inflammatory cascade in response to gut microflora-derived lipopolysaccharides(LPS).The pathophysiology of alcoholic liver disease and its related systemic illness is characterized by oxidative stress,activation of the immune cascade,and gut-liver interactions.Integrative therapeutic strategies for alcoholic liver disease include abstaining from alcohol consumption;general anti-inflammatories such as glucocorticoid,pentoxifylline,and tumour necrosis factor-αantagonist;antioxidants such as N-acetylcysteine;gut microflora and LPS modulators such as rifaximin and/or probiotics.This review focuses on the impact of chronic liver inflammation on systemic health problems and several potential therapeutic targets.
PDF
