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Tuberculosis

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https://www.readbyqxmd.com/read/28214275/detection-of-pneumocystis-jirovecii-by-nested-pcr-in-hiv-negative-patients-with-pulmonary-disease
#1
Cristina Rodrigues Santos, Ângela M de Assis, Edson A Luz, Luzia Lyra, Ivan F Toro, José Claudio C Seabra, Dira H Daldin, Tathiane U Marcalto, Marcos T Galasso, Ronaldo F Macedo, Angélica Z Schreiber, Francisco H Aoki
BACKGROUND: Nested PCR can be used to determine the status of Pneumocystis jirovecii infection in other lung diseases. AIMS: This study sought to detect a target DNA fragment (mitochondrial large subunit rRNA or mtL SUrRNA) of P. jirovecii in patients with lung disease who underwent bronchoscopy with collection of bronchoalveolar lavage (BAL). METHODS: The results from toluidine blue staining were compared with those obtained using molecular methods that included an "in house" DNA extraction procedure, PCR and nested PCR...
February 14, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28214232/new-nitrofurans-amenable-by-isocyanide-multicomponent-chemistry-are-active-against-multidrug-resistant-and-poly-resistant-mycobacterium-tuberculosis
#2
Mikhail Krasavin, Vladislav Parchinsky, Grigory Kantin, Olga Manicheva, Marine Dogonadze, Tatiana Vinogradova, Bianka Karge, Mark Brönstrup
A set of structurally diverse N-amino δ-lactams decorated with a 5-nitro-2-furyl moiety was synthesized using isocyanide-based multicomponent chemistry and evaluated for antibacterial activity. Three compounds displayed a selective and potent (MIC 22-33μM) inhibition of M. tuberculosis H37Rv strain growth, while other Gram-positive (MRSA and E. faecium) or Gram-negative (E. coli, P. aeruginosa, A. baumannii, K. pneumoniae) pathogens were not affected. The compounds also displayed moderate-low cytotoxicity, as demonstrated in cell line viability assays...
February 4, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28214126/pulmonary-nodules-in-african-migrants-caused-by-chronic-schistosomiasis
#3
REVIEW
Federico Gobbi, Dora Buonfrate, Andrea Angheben, Anna Beltrame, Matteo Bassetti, Luca Bertolaccini, Giuseppe Bogina, Simone Caia, Silvia Duranti, Maria Gobbo, Valentina Marchese, Stefania Marocco, Maria Merelli, Geraldo Monteiro, Alberto Terzi, Zeno Bisoffi
Schistosomiasis is a neglected tropical disease that can cause mainly hepatic and genitourinary damage, depending on the species. Involvement of the lungs has been commonly described in acute infection (Katayama syndrome) and chronic infection (pulmonary hypertension). Although rarely reported in the scientific literature, cases of lung nodules due to chronic schistosome infection are also possible and are probably more frequent than commonly thought. Here we report seven cases of African migrants who were diagnosed with chronic schistosomiasis and pulmonary nodules due to deposition of schistosome eggs, and we compare our findings to the case reports found in the scientific literature...
February 14, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28214065/-contribution-of-the-xpert-mtb-rif-to-the-etiological-diagnosis-of-tuberculous-pleurisy
#4
N O Touré, M Wayzani, K Thiam, M F Cissé, F B Mbaye
INTRODUCTION: Performance of the Xpert MTB/RIF for the detection of Mycobacterium tuberculosis in pleural liquid is poorly described. The aim of this study was to determine its usefulness for the etiological diagnosis of a tuberculous pleurisy. PATIENTS AND METHOD: We performed a descriptive cross-sectional study, with analytical design, including all the patients having a unilateral serofibrinous pleurisy, exudative, lymphocytic, and sterile. The diagnosis of pleural tuberculosis was considered based on epidemiological, clinical, paraclinical and therapeutic arguments...
February 14, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28213689/serious-fungal-infections-in-egypt
#5
S M Zaki, D W Denning
We 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...
February 17, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28213139/antimycobacterial-antimicrobial-activity-experimental-ft-ir-ft-raman-nmr-uv-vis-dsc-and-dft-transition-state-chemical-reactivity-nbo-nlo
#6
Poonam Rawat, R N Singh, Alok Ranjan, Sartaj Ahmad, Rajat Saxena
As part of a study of pyrrole hydrazone, we have investigated quantum chemical calculations, molecular geometry, relative energy, vibrational properties and antimycobacterial/antimicrobial activity of pyrrole-2-carboxaldehyde isonicotinyl hydrazone (PCINH), by applying the density functional theory (DFT) and Hartree Fock (HF). Good reproduction of experimental values is obtained and with small percentage error in majority of the cases in comparison to theoretical result (DFT). The experimental FT-IR and Raman wavenumbers were compared with the respective theoretical values obtained from DFT calculations and found to agree well...
February 11, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28212479/-spinal-tuberculosis-experience-in-a-third-level-medical-facility-in-puebla-mexico
#7
Rolando Joshua Medina-Peñasco, Martha Imelda Rosas-Ramírez, Rodolfo Gregorio Barragán-Hervella, Ivan Alvarado-Ortega, Gerardo López-Cázares, Álvaro José Montiel-Jarquín, María Socorro Romero-Figueroa
BACKGROUND: Pott's disease or spinal tuberculosis (STB) is a serious infectious disease, caused by the migration of the bacterium Mycobacterium tuberculosis to the spine. Knowing this disease is a priority for all the physicians. The objective was to show the experience in patients with STB treated in a third level hospital in Puebla, Mexico. METHODS: Descriptive study. From January to December, 2014, we collected information of patients with STB. The variables were age, gender, length of hospital stay, affected segment of the spine, associated diseases, symptoms, diagnostic methods, type of treatment and complication...
2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28210854/comparison-of-histopathology-and-real-time-polymerase-chain-reaction-rt-pcr-for-detection-of-mycobacterium-tuberculosis-in-fistula-in-ano
#8
Pankaj Garg
PURPOSE: Histopathology is commonly used to diagnose tuberculosis in fistula-in-ano. The aim was to compare the sensitivity of polymerase chain reaction and histopathology in detecting tuberculosis in fistula-in-ano. METHODS: The histopathology and polymerase chain-reaction of tissue (fistula tract) was done in all the consecutive operated cases. When pus sample was also available, polymerase chain reaction-pus was also done RESULTS: Three hundred forty seven samples (179 patients) were tested over 2 years (median 6...
February 16, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28210505/nanotechnology-based-approach-in-tuberculosis-treatment
#9
REVIEW
Mohammad Nasiruddin, Md Kausar Neyaz, Shilpi Das
Tuberculosis, commonly known as TB, is the second most fatal infectious disease after AIDS, caused by bacterium called Mycobacterium tuberculosis. Prolonged treatment, high pill burden, low compliance, and stiff administration schedules are factors that are responsible for emergence of MDR and XDR cases of tuberculosis. Till date, only BCG vaccine is available which is ineffective against adult pulmonary TB, which is the most common form of disease. Various unique antibodies have been developed to overcome drug resistance, reduce the treatment regimen, and elevate the compliance to treatment...
2017: Tuberculosis Research and Treatment
https://www.readbyqxmd.com/read/28210500/drug-release-characteristics-and-tissue-distribution-of-rifapentine-polylactic-acid-sustained-release-microspheres-in-rabbits-after-paravertebral-implantation
#10
Zheng Zhang, Linbo Wu, Haijian Li, Zhicheng Long, Xinghua Song
BACKGROUND: Rates of drug-resistant tuberculosis (TB) and TB associated with human immunodeficiency virus (HIV) infection have increased dramatically, intensifying challenges in TB control. New formulations of TB treatment drugs that control drug release and increase local drug concentrations will have a significant impact on mitigating the toxic side effects and increasing the clinical efficacy of anti-TB drugs. OBJECTIVES: The aim was to observe the sustained release characteristics of rifapentine polylactic acid sustained-release microspheres in vivo and the accumulation of rifapentine in other tissues following paravertebral implantation...
November 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28210462/accuracy-of-a-new-rapid-antigen-detection-test-for-pulmonary-tuberculosis
#11
Rasoul Aliannejad, Ahmadreza Bahrmand, Hamidreza Abtahi, Mahnaz Seifi, Enayat Safavi, Farid Abdolrahimi, Shahriyar Shahriaran
BACKGROUND AND OBJECTIVES: Tuberculosis (TB) is a major problem in the world. Treatment and control of TB needs detection of the Mycobacterium tuberculosis (MT) in the proper samples. While smear doesn't have enough sensitivity, culture and PCR are expensive, time consuming and unavailable in many centers. Recent development of a rapid TB antigen detection test (PrTBK) at Pasteur Institute of Iran could give a simple way for diagnosis of TB in about two hours. In this test the antigen-antibody complex will change color when gold conjugated mouse anti-rabbit antibody detects specific MT cell wall antigen in suspected samples...
August 2016: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/28210295/global-impact-of-bronchiectasis-and-cystic-fibrosis
#12
REVIEW
Margarida Redondo, Holly Keyt, Raja Dhar, James D Chalmers
EDUCATIONAL AIMS: To recognise the clinical and radiological presentation of the spectrum of diseases associated with bronchiectasis.To understand variation in the aetiology, microbiology and burden of bronchiectasis and cystic fibrosis across different global healthcare systems. : Bronchiectasis is the term used to refer to dilatation of the bronchi that is usually permanent and is associated with a clinical syndrome of cough, sputum production and recurrent respiratory infections...
September 2016: Breathe
https://www.readbyqxmd.com/read/28210262/morphoproteomic-guided-host-directed-therapy-for-tuberculosis
#13
Robert E Brown, Robert L Hunter, Shen-An Hwang
In an effort to develop more effective therapy for tuberculosis (TB), research efforts are looking toward host-directed therapy, reprograming the body's natural defenses to better control the infection. While significant progress is being made, the efforts are limited by lack of understanding of the pathology and pathogenesis of adult type TB disease. We have recently published evidence that the developing lesions in human lungs are focal endogenous lipid pneumonia that constitutes a region of local susceptibility in a person with strong systemic immunity...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28209712/mycobacterium-tuberculosis-esxl-inhibit-mhc-ii-expression-by-promoting-hypermethylation-in-class-ii-transactivator-loci-in-macrophages
#14
Srabasti Sengupta, Saba Naz, Ishani Das, Abdul Ahad, Avinash Padhi, Sumanta Naik, Geetanjali Ganguli, Kaliprasad Patnaik, Sunil Kumar Raghav, Vinay Nandicoori, Avinash Sonawane
Mycobacterium tuberculosis (Mtb) is known to modulate the host immune responses to facilitate its persistence inside the host cells. One of the key mechanisms includes repression of class-II transactivator (CIITA) and MHC-II expression in infected macrophages. However, the precise mechanism of CIITA and MHC-II down-regulation is not well studied. Mtb 6-kDa early secretory antigenic target (ESAT-6) is a known potent virulence and antigenic determinant. Mtb genome encodes 23 such ESAT-6 family proteins. We herein report that Mtb and M...
February 16, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28209523/tb-iris-proteomic-analysis-of-in-vitro-pbmc-responses-to-mycobacterium-tuberculosis-and-response-modulation-by-dexamethasone
#15
Liam Bell, Janique M Peyper, Shaun Garnett, Rabecca Tadokera, Robert Wilkinson, Graeme Meintjes, Jonathan M Blackburn
Paradoxical tuberculosis-associated immune reconstitution inflammatory syndrome (TB-IRIS) occurs in 8-54% of South African patients undergoing treatment for tuberculosis/human immunodeficiency virus co-infection. Improved TB-IRIS molecular pathogenesis understanding would enhance risk stratification, diagnosis, prognostication, and treatment. We assessed how TB-IRIS status and dexamethasone influence leukocyte proteomic responses to Mycobacterium tuberculosis (Mtb). Patient blood was obtained three weeks post-anti-retroviral therapy initiation...
February 13, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28209436/is-colombia-reaching-the-goals-on-infant-immunization-coverage-a-quantitative-survey-from-80-municipalities
#16
Javier Narváez, May Bibiana Osorio, Carlos Castañeda-Orjuela, Nelson Alvis Zakzuk, Natalia Cediel, Luz Ángela Chocontá-Piraquive, Fernando de La Hoz-Restrepo
OBJECTIVES: This study aimed to evaluate the coverage of the Colombian Expanded Program on Immunization among children less than 6years old, to evaluate the timeliness of immunization, to assess the coverage of newly introduced vaccines, and to identify factors associated with lack of immunization. METHODS: We conducted a cross-sectional survey in 80 municipalities of Colombia, using a two-stage cluster random sampling. We attempted to contact all children less than 6years old living in the sampled blocks, and asked their caregivers to provide immunization record cards...
February 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28209397/suitability-of-a-high-resolution-ultrasound-guided-puncture-in-the-diagnosis-of-a-soft-tissue-mass-infected-with-mycobacterium-tuberculosis
#17
Hèctor Corominas, Dèlia Reina, Vicenç Torrente-Segarra, Cristina Chico, Vanessa Antón, Paula Estrada, Vanessa Navarro
No abstract text is available yet for this article.
February 13, 2017: Reumatología Clinica
https://www.readbyqxmd.com/read/28209138/using-whole-genome-sequencing-to-investigate-transmission-in-a-multi-host-system-bovine-tuberculosis-in-new-zealand
#18
Joseph Crispell, Ruth N Zadoks, Simon R Harris, Brent Paterson, Desmond M Collins, Geoffrey W de-Lisle, Paul Livingstone, Mark A Neill, Roman Biek, Samantha J Lycett, Rowland R Kao, Marian Price-Carter
BACKGROUND: Bovine tuberculosis (bTB), caused by Mycobacterium bovis, is an important livestock disease raising public health and economic concerns around the world. In New Zealand, a number of wildlife species are implicated in the spread and persistence of bTB in cattle populations, most notably the brushtail possum (Trichosurus vulpecula). Whole Genome Sequenced (WGS) M. bovis isolates sourced from infected cattle and wildlife across New Zealand were analysed. Bayesian phylogenetic analyses were conducted to estimate the substitution rate of the sampled population and investigate the role of wildlife...
February 16, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28208927/tuberculosis-of-glans-penis-a-rare-presentation
#19
C Gangalakshmi, Sankaramahalingam
Tuberculosis (TB) of penis is a very rare entity, even in developing countries. It may present as primary or secondary to Pulmonary TB (PTB). Penile TB mimics carcinoma penis, granulomatous penile ulcer, genital herpes simplex, granuloma inguinale and HIV infection. We, hereby, present the case of a 57-year-old male patient who presented to us with ulcerative growth over glans penis and was clinically diagnosed as carcinoma penis, however biopsy of the lesion showed evidence of tuberculosis which was supported by chest X-ray...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208905/n-acetylcysteine-combined-with-home-based-physical-activity-effect-on-health-related-quality-of-life-in-stable-copd-patients-a-randomised-controlled-trial
#20
Vijay Tukaram Salve, Jitesh S Atram
INTRODUCTION: Quality of life is adversely affected in Chronic Obstructive Pulmonary Disease (COPD), due to irreversible, progressive nature of the disease and limitations of current treatment options available. One of the important aim of treatment of COPD is to improve Quality of Life (QoL). Cigarette smoke contains numerous free radicals and other oxidants. Oxidative stress has been implicated in pathogenesis, progression of disease and exacerbation in COPD. Pulmonary tuberculosis, outdoor and indoor air pollution and many others are aetiologies of COPD in non-smokers...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
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