... as a threat against the control of tuberculosis (Tb) in various parts of the world In Colombia, according to the WHO/OPS (2004), the estimated percentage of multi -drug resistantTb in patients ... data reported on the estimated percentage of multi -drug resistantTb in patients with previously treated Tb1 By 2005, nearly 10,000 cases of Tb were diagnosed, and approximately 15% of these were ... This report describes the deterioration of the functionality of a patient with multi -drug resistantTb (MDR- TB) even to the point of such patient losing the ability to perform every-day activities,...
... of Drug- Resistant TB, Treating TB in Context, Overview of TB and MDRTB in India, Setting the Stage, 10 Organization of the Report, 11 DRUG- RESISTANTTB IN INDIA The Burden of TB and MDRTB in ... the Challenge of Drug- Resistant TB, 25 Potential Innovations and Action Items, 26 13 THE GLOBAL BURDEN OF DRUG- RESISTANTTB Overview of the Global Burden of TB and MDR TB, 29 MDRTB Prevention and ... CONTENTS ADDRESSING TB AND DRUG- RESISTANTTB IN VULNERABLE POPULATIONS Drug- ResistantTB in Pediatric Populations, 55 The Burden of Pediatric TB in Households of Patients with MDR TB, 58 Drug Resistance...
... to tuberculosis and drug resistance DrugresistanttuberculosisTuberculosis that is resistant to any first line antituberculosis drug (see table 1) Multidrug resistanttuberculosis (MDR- TB) — ... resistanttuberculosis (MDR- TB) — Tuberculosis that is resistant to at least isoniazid and rifampicin Extensivelydrugresistanttuberculosis (XDR- TB) — Tuberculosis that is resistant to at least isoniazid ... treatment of multidrug resistanttuberculosis How can we prevent drugresistant tuberculosis? The principles of tuberculosis control are equally relevant to the prevention of drugresistant tuberculosis: ...
... THREAT OF DRUG- RESISTANTTUBERCULOSIS Number of MDRTB and XDRTB Patients 300 250 200 109 146 150 100 50 113 126 63 XDRTBMDRTB 102 2005 2006 2007 Year FIGURE 2-6 Numbers of MDRTB and XDRTB patients ... DRUG- RESISTANTTUBERCULOSIS 1.00 MDRTB vs XDRTB Percent Survival 0.75 0.50 0.25 0.00 50 100 150 200 250 300 350 400 Days STRATA: TYPE =MDR TB TYPE =XDR TB Censored TYPE =MDR TB Censored TYPE =XDR ... THE GLOBAL SPREAD OF MULTIDRUG -RESISTANT AND EXTENSIVELY DRUG- RESISTANTTUBERCULOSIS Scope of the Problem, 19 Underreporting of MDRTB in Africa, 25 The Threat of Totally Drug- Resistant TB, 33...
... Abbreviations AFB: acid-fast bacilli; COPD: chronic obstructive pulmonary disease; MDR: multi -drug resistant; TB: tuberculosis Competing interests The authors declare that they have no competing ... Metaplastic ossification in the cartilage of the bronchus of a patient with chronic multi -drug resistant tuberculosis: a case report Journal of Medical Case Reports 2010, 4:156 ... observations in case we describe here suggest that persistent stimulation by chronic inflammation in MDR- TB may occasionally induce the development of osseous metaplasia from the cartilage of the bronchial...
... categories of drug resistance, by tuberculosis treatment status Total cases New cases Previously treated cases Fully susceptible Resistant to one drug only Poly -resistant (not MDR- TB) MDR- TB Total ... management of multidrug -resistant tuberculosis (MDR- TB) Geneva, Switzerland: WHO; 2000 WHO/CDS /TB/ 2000.279 Portaels F, Rigouts L, Bastian I: Addressing multidrug -resistant tuberculosis in penitentiary ... Poly -resistant (not MDR- TB) MDR- TB Total Fully susceptible Resistant to one drug only Poly -resistant (not MDR- TB) MDR- TB Total two M tuberculosis strains (Fig 1) These findings could be confirmed...
... Contrary to TB drugs the efficacy of immunebased therapy on drug- resistantTB is considered to be the same as against drug- sensitive strains [34] In our hands V5 seemed to be equally effective against ... 34) Lower paired bars show conversion rates among first-diagnosed TB (1stDx); relapsed TB (RTB); and multidrug -resistant TB (MDR) respectively Butov et al Journal of Immune Based Therapies and ... Patients The study involved 18 first-diagnosed TB (1stDx; 52.9%), relapsed TB (RTB; 17.6%), and 10 patients with confirmed multi -drug resistantTB (MDR; 29.4%) The patient population comprised...
... Fig 1B Multidrug -resistant mutation V32I, which alters a residue in the active site cavity, appears in 20% of patients treated with APV [14] and is associated with high levels of drug resistance ... mutation results in different structural changes with the two drugs Comparison of the structures provides insight into why I50V is a major drug- resistant mutation observed HIV protease mutants altering ... crystal structures of HIV-1 protease with a potent non-peptide inhibitor (UIC-94017) active against multi -drug- resistant clinical strains J Mol Biol 338, 341–352 Mahalingam B, Boross P, Wang YF, Louis...
... page > Page 34 against strains of bacteria that are highly resistant to antibiotics Unlike many herbs, garlic is directly effective against viruses Garlic is perhaps the most extensively tested ... are many, a few of which are naturally immune or resistant to antibiotics Generally, these few resistant bacteria are in competition with their nonresistant cousins (and all the other helpful bacteria) ... they kill off the nonresistant disease bacteria (and often many or most of the other, helpful bacteria), leaving the resistant bacteria to reproduce without competition The resistant bacteria then...
... (which is either drug sensitive or drug resistant) is introduced into a fully susceptible population On day 21, a second introduction follows (again drug sensitive or resistant) Drug resistance ... the drug sensitive virus (solid lines in black), the drugresistant one (dashed lines) and the sum of Prevalence of infection with the drug sensitive virus (solid lines in black), the drugresistant ... on day and 21; (b) Drug sensitive infection is imported on day 0, followed by a drug- resistant one on day 21; (c) Drugresistant infection is imported on day 0, followed by a drug- sensitive one...
... transmission of drug- resistant HIV strains would aid design of optimal drug regimens and clinical management Our study was designed to obtain preliminary data on the frequency of drug- resistant variants ... infected with subtype C live, there is very little information on drug resistance in HIV-infected people The frequency at which drug- resistant reverse transcriptase variants occur in evolving HIV-1 ... Caribbean, he prevalence of HIV strains with at least primary drug- resistant mutation is low (less than 7%), as evidenced by a few reports on drug resistance based on sequencing of the pol gene.[24-28]...
... hr and then infected with (a&b) wild-type and drug- resistant human H1N1 viruses; (b&c) drug- resistant H3N2 viruses and (d&e) wild-type and drug- resistant B viruses Supernatants collected were ... the replication of drug- resistant A/ Vietnam/1203/2004 viruses that include zanamivir- and oseltamivir-sensitive and adamantanes -resistant and adamantanes- and oseltamivir -resistant virus variants, ... for cytoplasmic RNA sensor, RIG-I, in antiviral innate immune response against a panel of influenza viruses including drug- resistant, potential pandemic as well as pandemic strains in human lung...
... coculture The NRTI drugresistant mutations lost in strains after coculture, including T69APST, M41LM, and A62V One drugresistant mutation (L74V) changed to V75T The NNRTI drugresistant mutations ... replication properties of 13 drug- resistant variants using PBMC assay The data show all drugresistant variants were able to yield productive infections in PBMCs Suggested that drug- resistant HIV-1 isolates ... transmission of resistant HIV-1strains However, the drugresistant mutations in vitro in absence of drugs were persistent and only mutations were lost after passage suggested that the drug resistant...
... risk of infection by drugresistant HIV-1 strains when the mother harbors such viruses or when drug pressure during MTCT prophylaxis is suboptimal Vertical transmission of drug- resistant HIV-1 was ... neonatal drug resistance profiles pointed to two different mechanisms of acquisition of resistant variants by infants in the perinatal period (Figure 4) First, the infant could acquire drugresistant ... P225H, M230L, and P236L Mixtures of WT and mutant sequences were considered drug- resistant Interpretation of genotypic drug susceptibility was done according to the 2007 French ANRS algorithm http://www.hivfrenchresist...
... existence of large quasispecies can serve as reservoirs for the emergence of viral species resistant to different drugs, since infected cells might survive for several years [20,21] Our results on uncultured, ... JI, Terlecky SR, Wawrzak Z, Winters MA, Merigan TC, Kovari LC.: Crystal structures of a multidrug -resistant human immunodeficiency virus type protease reveal an expanded active-site cavity J ... occurred more slowly in this region than in the similarly sized PR region, reflecting differences in drug selection pressure Although RT inhibitors have been reported to affect RNase H, no mutations...
... emergence of drug- resistant HIV-1 [4] Drug- resistant strains of HIV-1 harbor mutations that can negatively impact viral fitness, but these viruses gain a replicative advantage in the presence of drug ... found drug resistance mutations [9,10], suggesting that immune recognition is adaptive and responsive to the emergence of drug- resistant virus Whether these responses control replication of drugresistant ... replication of drug- resistant virus The macaques in this study were treated with tenofovir for weeks prior to challenge with drug- resistant SIV While tenofovir has direct antiviral effects against SIV...
... amplified DNA in drug- resistant Leishmania exists as extrachromosomal circles Science 1986, 233:535-540 Dewes H, Ostergaard HL, Simpson L: Impaired drug uptake in methotrexate resistant Crithidia ... Hehlmann R: Cancer drug resistance: the central role of the karyotype Drug Resist Updat 2007, 10:51-58 Selmecki A, Forche A, Berman J: Aneuploidy and isochromosome formation in drug- resistant Candida ... without changes in copy number of a gene is an infrequent event in drugresistant Leishmania The use of both L infantum and L major MTX resistant mutants validated the design of our multi-species array...
... of drug A = MIC of drug A in combination/MIC of drug A alone, FIC of drug B = MIC of drug B in combination/MIC of drug B alone The FICI was defined as the FIC of drug A added to the FIC of drug ... Mean UPLC: ultra-pressure liquid chromatography V: volts VUP: volumes under the planes XDR: Extensivelydrugresistant 33 56 54 101 55 57 52 53 113 101 23 52 31 41 53 56 33 18 54 54 16 CHAPTER Introduction ... this group of organisms Multidrug-resistance is defined as nonsusceptibility to at least one agent in three or more antimicrobial categories Extensivelydrug resistance (XDR) is defined as non-susceptibility...
... MANAGEMENT OF MDRTUBERCULOSIS i Multidrug ResistantTB is defined as TB disease where there is demonstrated resistance to both INH and rifampicin with or without resistance to other anti -TB drugs As ... retreatment patients and patients with MDR TB, it will make a major contribution to the limitation of MDRTB THE DIAGNOSIS OF MDRTUBERCULOSIS • • • • • MDRTB is a laboratory diagnosis It should ... CONTACTS OF MDRTUBERCULOSIS PATIENTS 18 HEALTH CARE WORKERS AND MULTIDRUG -RESISTANT TUBERCULOSIS 19 15.1 TRANSMISSION OF TUBERCULOSIS 19 15.2 PATHOGENESIS OF TUBERCULOSIS...