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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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
This article does not contain any studies with human participants or animals performed by the author. Data Availability All national (MagIran, Science Information Database (SID) and Iranmedex) and international (PubMed, Scopus) databases were searched from November 2010 to November 2016 using keywords both in English and Persian: Afghan immigrants, Afghan refugees, Iran, infectious diseases, tuberculosis, HIV, Hepatitis B and C, non-communicable disease, food security, mental health, barriers, health insurance, access to health service. All related websites and webpages were also searched by Google with the same keywords ...
Source: PLOS Currents Disasters - Category: International Medicine & Public Health Authors: Source Type: research
This article does not contain any studies with human participants or animals performed by the author. Data Availability All national (MagIran, Science Information Database (SID) and Iranmedex) and international (PubMed, Scopus) databases were searched from November 2010 to November 2016 using keywords both in English and Persian: Afghan immigrants, Afghan refugees, Iran, infectious diseases, tuberculosis, HIV, Hepatitis B and C, non-communicable disease, food security, mental health, barriers, health insurance, access to health service. All related websites and webpages were also searched by Google with the same keywords ...
Source: PLOS Currents Disasters - Category: International Medicine & Public Health Authors: Source Type: research
AbstractWe aimed to estimate the burden of serious fungal infections in Egypt, currently unknown, based on the size of the populations at risk and available epidemiological data. Data were obtained from the World Health Organization (WHO), the Joint United Nations Programme on HIV/AIDS (UNAIDS), and published reports with clearcut denominators. When no data existed, risk populations were used to estimate frequencies of fungal infections, using previously described methodology. The population of Egypt in 2011 was ∼82,500,000; 31% children, and 8% women>60  years of age. Amongst about 21.8 million women aged 15&n...
Source: European Journal of Clinical Microbiology and Infectious Diseases - Category: Microbiology Source Type: research
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