Researchers identify faster, more effective drug combination regimens to treat tuberculosis

Tuberculosis is a potentially deadly though curable disease. Each year about 10 million people develop active cases, and 1.6 million people die. In addition, about 1.7 billion people around the world are infected with TB bacteria, which can lie dormant for weeks to years, then become active and cause disease in up to 10 percent of those who are infected.Today, people who contract tuberculosis typically take a course of drugs for six to eight months. However, the length of treatment means some patients don ’t stick with the therapy or may develop adverse effects from drug toxicity. Some may develop resistance to the drugs, requiring changes in the drug regimen that can lengthen the treatment to as long as two years. Even worse, there is a high fatality rate among those with drug-resistant TB.In new research, UCLA scientists have reported finding a way to significantly reduce the duration of treatment by using an approach called “artificial intelligence-parabolic response surface.” This data analysis method identifies which drug combinations work synergistically — that is, individual drugs working together in a way that is more potent than the sum of their individual potencies. The method, when used in cell culture a nd subsequently mouse models of TB, allowed researchers to quickly identify three- or four-drug combinations among billions of possible combinations of drugs and doses, that significantly cut the duration of TB therapy.These regimens ar...
Source: UCLA Newsroom: Health Sciences - Category: Universities & Medical Training Source Type: news

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Fight Aging! publishes news and commentary relevant to the goal of ending all age-related disease, to be achieved by bringing the mechanisms of aging under the control of modern medicine. This weekly newsletter is sent to thousands of interested subscribers. To subscribe or unsubscribe from the newsletter, please visit: https://www.fightaging.org/newsletter/ Longevity Industry Consulting Services Reason, the founder of Fight Aging! and Repair Biotechnologies, offers strategic consulting services to investors, entrepreneurs, and others interested in the longevity industry and its complexities. To find out m...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Over the past 200 years lung diseases have shifted from infections – tuberculosis, pneumonia – to diseases of dirty air – chronic obstructive pulmonary disease, asthma and lung cancer. New diseases have emerged from industrial pollution and HIV infection, while better imaging has revealed others previously unrecognized. Scientific advances in microbiology, im aging and clinical measurement have improved diagnosis and allowed better targeted treatment. Advances in treatment have been dramatic, the most important being drugs (antibiotics, cortisone, β2-adrenoceptor agonists), ventilatory support (from ...
Source: Medicine - Category: Internal Medicine Authors: Tags: Clinical aspects Source Type: research
This study provides strong evidence that following a healthy lifestyle can substantially extend the years a person lives disease-free." Commentary on Recent Evidence for Cognitive Decline to Precede Amyloid Aggregation in Alzheimer's Disease https://www.fightaging.org/archives/2020/01/commentary-on-recent-evidence-for-cognitive-decline-to-precede-amyloid-aggregation-in-alzheimers-disease/ I can't say that I think the data presented in the research noted here merits quite the degree of the attention that it has been given in the popular science press. It is interesting, but not compelling if its role...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Discussion MDSCs violently emerge in pathological conditions in an attempt to limit potentially harmful immune and inflammatory responses. Mechanisms supporting their expansion and survival are deeply investigated in cancer, in the perspective to reactivate specific antitumor responses and prevent their contribution to disease evolution. These findings will likely contribute to improve the targeting of MDSCs in anticancer immunotherapies, either alone or in combination with immune checkpoint inhibitors. New evidence indicates that the expansion of myeloid cell differentiation in pathology is subject to fine-tuning, as its...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Conclusions Toxoplasma gondii infection induces a strong innate and adaptive immune response. While the innate immunity is important for controlling the early stages of the infection (Yarovinsky, 2014), the adaptive immunity is critical for restricting the parasite replication during the later stages (Gazzinelli et al., 1992). Amongst the adaptive immune subsets, CD8 T cells are the primary effector cells while CD4 T cells play an essential helper role to maintain long-term immunity (Casciotti et al., 2002). Notwithstanding, a robust CD8 T cell immunity induced during acute phase of infection, does not result in the total...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
Giuseppe Ristagno1*, Francesca Fumagalli1, Barbara Bottazzi2, Alberto Mantovani2,3,4, Davide Olivari1, Deborah Novelli1 and Roberto Latini1 1Department of Cardiovascular Research, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy 2Humanitas Clinical and Research Center-IRCCS, Milan, Italy 3Humanitas University, Milan, Italy 4The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom The long pentraxin PTX3 is a member of the pentraxin family produced locally by stromal and myeloid cells in response to proinflammatory signals and microbial moieties. The p...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
In this study they also showed PTX3 localized in NETs formed after neutrophil activation (5). Proteomics analysis revealed that PTX3 forms complexes with two anti-microbial proteins [azurocidin (AZU1) and myeloperoxidase (MPO)] associated to NETs (30). More recently, PTX3 localization in NETs has been confirmed, and the colocalization with AZU1 and MPO has been defined more accurately (31). Further investigation will be needed to understand the involvement of PTX3 interaction with AZU1 and MPO in their antibacterial role during NET formation. Regulation of Complement Activation PTX3 interaction with microorganisms is not...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
This study was provided by the Canadian Institutes of Health Research and the Manitoba Health Research Council. Conflict of Interest Statement The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. References 1. Sprent J, Kishimoto H. The thymus and central tolerance. Philos Trans R Soc Lond B Biol Sci. (2001) 356:609–16. doi: 10.1098/rstb.2001.0846 PubMed Abstract | CrossRef Full Text | Google Scholar 2. Sakaguchi S, Wing K, Miyara M. Regulatory T cells - a brief history and perspective. ...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Conclusion: Despite the development of treatments, the recent implementation of screening programs, the prognosis for PAH remains reserved.
Source: European Respiratory Journal - Category: Respiratory Medicine Authors: Tags: Pulmonary hypertension Source Type: research
We examined associations between mortality and accelerometer-measured PA using age-relevant intensity cutpoints in older women of various ethnicities. The results support the hypothesis that higher levels of accelerometer-measured PA, even when below the moderate-intensity threshold recommended in current guidelines, are associated with lower all-cause and CVD mortality in women aged 63 to 99. Our findings expand on previous studies showing that higher self-reported PA reduces mortality in adults aged 60 and older, specifically in older women, and at less than recommended amounts. Moreover, our findings challenge th...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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