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https://www.readbyqxmd.com/read/27913241/evaluation-of-highly-branched-cyclic-dextrin-in-inhalable-particles-of-combined-antibiotics-for-the-pulmonary-delivery-of-anti-tuberculosis-drugs
#1
Kazunori Kadota, Arisa Senda, Hideaki Tagishi, John Oluwasogo Ayorinde, Yuichi Tozuka
This work aims to identify a suitable formulation for the pulmonary delivery of combinations of inhalational drugs using highly branched cyclic dextrin (HBCD) macromolecules. We compared the effectiveness between powders prepared from HBCD with those prepared from five alternative excipients (lactose, maltose, sucrose, β-cyclodextrin and methyl β-cyclodextrin) in the pulmonary delivery of a single-dosage form of two anti-tuberculosis drugs (isoniazid and rifampicin). Fine particles of untreated active pharmaceutical ingredients (APIs) and combination products using excipients were prepared by spray drying...
November 29, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27911140/effect-of-secondary-preventive-therapy-on-recurrence-of-tuberculosis-in-hiv-infected-individuals-a-systematic-review
#2
Wassilis Sc Bruins, Frank van Leth
Human immunodeficiency virus (HIV)-infected individuals successfully treated for tuberculosis (TB) remain at risk of recurrence of the disease, especially in high TB incidence settings. We performed a systematic review, investigating whether secondary preventive therapy (sPT) with anti-TB drugs (preventive therapy in former TB patients with treatment success) is an effective strategy to prevent recurrence of TB in this patient group. We searched the databases PubMed, Cochrane Library, EMBASE, Web of Science and Google Scholar using the keywords HIV-infections, HIV, human immunodeficiency virus, AIDS, isoniazid, isoniazid preventive therapy (IPT), tuberculosis, TB, recurrence and recurrent disease, resulting in 253 potential publications...
December 2, 2016: Infectious Diseases
https://www.readbyqxmd.com/read/27910715/how-do-we-measure-adherence-to-anti-tuberculosis-treatment
#3
Salomé Valencia, Montserrat León, Irene Losada, Victor G Sequera, Manuel Fernandez Quevedo, Alberto L García-Basteiro
Completion of anti-tuberculosis (TB) treatment is of paramount importance for TB patients, as well as for the global efforts of TB control. However, there is neither a gold-standard measure to monitor adherence to TB treatment nor a widely used definition for different levels of adherence. Areas covered: in this review we aim to describe the different methods used to measure patients' adherence to anti-TB treatment, identifying their main strengths and limitations, with a focus on low resource settings. Expert commentary: there is a need for continuing the quest for a low cost, reliable and acceptable measure of adherence to TB treatment...
December 2, 2016: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/27907875/s-substituted-3-5-dinitrophenyl-1-3-4-oxadiazole-2-thiols-and-tetrazole-5-thiols-as-highly-efficient-antitubercular-agents
#4
Galina Karabanovich, Jan Němeček, Lenka Valášková, Alejandro Carazo, Klára Konečná, Jiřina Stolaříková, Alexandr Hrabálek, Oto Pavliš, Petr Pávek, Kateřina Vávrová, Jaroslav Roh, Věra Klimešová
Two new classes of antitubercular agents, namely 5-alkylsulfanyl-1-(3,5-dinitrophenyl)-1H-tetrazoles and 2-alkylsulfanyl-5-(3,5-dinitrophenyl)-1,3,4-oxadiazoles, and their structure-activity relationships are described. These compounds possessed excellent activity against Mycobacterium tuberculosis, including the clinically isolated multidrug (MDR) and extensively drug-resistant (XDR) strains, with no cross resistance with first or second-line anti-TB drugs. The minimum inhibitory concentration (MIC) values of the most promising compounds reached 0...
November 21, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27906018/hiv-sero-discordance-among-married-hiv-patients-initiating-anti-retroviral-therapy-in-northern-vietnam
#5
Vu Van Tam, Do Duy Cuong, Tobias Alfven, Ho Dang Phuc, Nguyen Thi Kim Chuc, Nguyen Phuong Hoa, Vinod Diwan, Mattias Larsson
BACKGROUND: In many countries in Asia, the HIV epidemic is in a concentrated phase, with high prevalence in certain risk groups, such as men who inject drugs. There is also a rapid increase of HIV among women. The latter might be due to high levels of sero-discordant couples and increasing transmission from male to female partners over time. METHODS: All adult married patients initiating antiretroviral treatment at four out-patient clinics in Quang Ninh province in north-eastern Vietnam between 2007 and 2009 were asked to participate in the study...
November 15, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27906009/current-trends-and-intricacies-in-the-management-of-hiv-associated-pulmonary-tuberculosis
#6
REVIEW
Narendran Gopalan, Padmapriyadarsini Chandrasekaran, Soumya Swaminathan, Srikanth Tripathy
Human immunodeficiency virus (HIV) epidemic has undoubtedly increased the incidence of tuberculosis (TB) globally, posing a formidable global health challenge affecting 1.2 million cases. Pulmonary TB assumes utmost significance in the programmatic perspective as it is readily transmissible as well as easily diagnosable. HIV complicates every aspect of pulmonary tuberculosis from diagnosis to treatment, demanding a different approach to effectively tackle both the diseases. In order to control these converging epidemics, it is important to diagnose early, initiate appropriate therapy for both infections, prevent transmission and administer preventive therapy...
September 26, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27905500/targeting-intracellular-p-aminobenzoic-acid-production-potentiates-the-anti-tubercular-action-of-antifolates
#7
Joshua M Thiede, Shannon L Kordus, Breanna J Turman, Joseph A Buonomo, Courtney C Aldrich, Yusuke Minato, Anthony D Baughn
The ability to revitalize and re-purpose existing drugs offers a powerful approach for novel treatment options against Mycobacterium tuberculosis and other infectious agents. Antifolates are an underutilized drug class in tuberculosis (TB) therapy, capable of disrupting the biosynthesis of tetrahydrofolate, an essential cellular cofactor. Based on the observation that exogenously supplied p-aminobenzoic acid (PABA) can antagonize the action of antifolates that interact with dihydropteroate synthase (DHPS), such as sulfonamides and p-aminosalicylic acid (PAS), we hypothesized that bacterial PABA biosynthesis contributes to intrinsic antifolate resistance...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27904742/rifampicin-and-isoniazid-plasma-concentrations-in-relation-to-adverse-reactions-in-tuberculosis-patients-a-retrospective-analysis
#8
L Aït Moussa, O El Bouazzi, S Serragui, D Soussi Tanani, A Soulaymani, R Soulaymani
OBJECTIVE: High concentrations of antituberculosis (anti-TB) drugs can be associated with many adverse drug reactions (ADRs). The objective of this study was to examine the plasma concentrations of rifampicin (RMP) and isoniazid (INH) in patients with and without ADRs. METHODS: Concentration monitoring data of patients treated with anti-TB drugs were retrospectively analyzed from 2009 to 2011. RMP and INH plasma concentrations were measured 2 and 3 h after drug administration respectively using high-performance liquid chromatography...
December 2016: Therapeutic Advances in Drug Safety
https://www.readbyqxmd.com/read/27904125/use-of-corticosteroids-for-urinary-tuberculosis-patients-at-risk-of-developing-ureteral-obstruction
#9
Kosuke Matsui, Akitsugu Furumoto, Kojiro Ohba, Kota Mochizuki, Takeshi Tanaka, Masahiro Takaki, Konosuke Morimoto, Koya Ariyoshi
A 77-year-old man with urinary tuberculosis developed post renal anuria two days after starting an anti-tuberculosis drug regimen. He had bilateral hydronephrosis, and his right kidney was radiologically diagnosed to be non-functioning. A transurethral catheter was placed in the left ureter. No improvement in the ureteral stricture was noted during the initial three weeks of treatment; however, the stricture did thereafter improve after the commencement of oral prednisolone. In cases of urinary tuberculosis, ureteral stricture can deteriorate and result in ureteral obstruction during anti-tuberculosis treatment...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27895634/cytosolic-proteome-profiling-of-aminoglycosides-resistant-mycobacterium-tuberculosis-clinical-isolates-using-maldi-tof-ms
#10
Divakar Sharma, Manju Lata, Rananjay Singh, Nirmala Deo, Krishnamurthy Venkatesan, Deepa Bisht
Emergence of extensively drug resistant tuberculosis (XDR-TB) is the consequence of the failure of second line TB treatment. Aminoglycosides are the important second line anti-TB drugs used to treat the multi drug resistant tuberculosis (MDR-TB). Main known mechanism of action of aminoglycosides is to inhibit the protein synthesis by inhibiting the normal functioning of ribosome. Primary target of aminoglycosides are the ribosomal RNA and its associated proteins. Various mechanisms have been proposed for aminoglycosides resistance but still some are unsolved...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27893931/infliximab-induced-tuberculosis-in-patients-with-uc-experience-from-a-country-with-high-prevalence-of-tuberculosis-india
#11
Amarender S Puri, Devendra Desai, Ajit Sood, Sanjeev Sachdeva
BACKGROUND & AIM: Tuberculosis (TB) is a well-recognized iatrogenic adverse event following administration of biologic therapy given for a variety of clinical indications. There is paucity of data on the development of TB following use of biologics from countries with a high prevalence of TB. The aim of this study was to determine the risk of development of TB following biological therapy in a country, which is highly endemic for TB. METHODS: Retrospective analysis of data from 3 referral IBD centers to evaluate the risk of development of TB following biological therapy for patients with UC...
November 28, 2016: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/27891378/isoniazid-induced-lupus-presenting-as-oral-mucosal-ulcers-with-pancytopenia
#12
Ria Shah, Padmaraj Ankale, Kanishk Sinha, Aparna Iyer, T K Jayalakshmi
Drug Induced Lupus Erythematous (DILE) is a rare adverse reaction to a large variety of drugs including Isoniazid (INH), with features resembling idiopathic Systemic Lupus Erythematosus (SLE). Diagnosis require identification of a temporal relationship between drug administered and symptom. It is an idiosyncratic reaction, with no pre-existing lupus. Our case highlights a rare presentation of isoniazid induced lupus with profound pancytopenia and mucosal ulcers, thus posing a diagnostic challenge. The patient was on multidrug treatment for pulmonary and knee joint tuberculosis...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27891160/hiv-sero-discordance-among-married-hiv-patients-initiating-anti-retroviral-therapy-in-northern-vietnam
#13
Vu Van Tam, Do Duy Cuong, Tobias Alfven, Ho Dang Phuc, Nguyen Thi Kim Chuc, Nguyen Phuong Hoa, Vinod Diwan, Mattias Larsson
BACKGROUND: In many countries in Asia, the HIV epidemic is in a concentrated phase, with high prevalence in certain risk groups, such as men who inject drugs. There is also a rapid increase of HIV among women. The latter might be due to high levels of sero-discordant couples and increasing transmission from male to female partners over time. METHODS: All adult married patients initiating antiretroviral treatment at four out-patient clinics in Quang Ninh province in north-eastern Vietnam between 2007 and 2009 were asked to participate in the study...
2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27890360/anti-tubercular-peptides-a-quest-of-future-therapeutic-weapon-to-combat-tuberculosis
#14
REVIEW
Ameer Khusro, Chirom Aarti, Paul Agastian
Tuberculosis (TB) is a symbolic menace to mankind, infecting almost one third of the world's populace and causing over a million mortalities annually. Mycobacterium tuberculosis (Mtb) is the key pathogen of TB that invades and replicates inside the host's macrophage. With the emerging dilemma of multi-drug resistant tuberculosis (MDR-TB) and extensively-drug resistant tuberculosis (XDR-TB), the exigency for developing new TB drugs is an obligation now for worldwide researchers. Among the propitious antimycobacterial agents examined in last few decades, anti-tubercular peptides have been substantiated to be persuasive with multiple advantages such as low immunogenicity, selective affinity to bacterial negatively charged cell envelopes and most importantly divergent mechanisms of action...
November 2016: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/27888079/neglected-recurrent-scalp-sinus-calvarial-tuberculosis-with-intracrnial-and-extracranial-extension
#15
Krishnamurthy B Holeppagol, Biswaranjan N Nayak, Ram Kumar K Goyal, Arunkumar K Kumar, Prafulla K Sahoo, Debabrata B Biswal
INTRODUCTION: Calvarial Tuberculosis with intracranial tuberculoma and skin involvement is rare condition even in endemic regions. CASE PRESENTATION: We herein describe an adult male patient presenting with generalized seizure ,altered mental state, scalp swelling and pus discharging sinus over scalp .MRI brain gave conflicting diagnosis of Anaplastic menigiomas /chronic osteomyelitis with intra cranial extension .Debridement and drainage of intracranial pus was done...
November 22, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27885861/additional-synthesis-on-thiophene-containing-trisubstituted-methanes-trsms-as-inhibitors-of-m-tuberculosis-and-3d-qsar-studies
#16
P Singh, T Saha, P Mishra, M K Parai, S Ireddy, S Lavanya Kumar M, S Krishna, S K Kumar, V Chaturvedi, S Sinha, M I Siddiqi, G Panda
We earlier reported thiophene-containing trisubstituted methanes (TRSMs) as novel cores carrying anti-tubercular activity, and identified S006-830 as the phenotypic lead with potent bactericidal activity against single- and multi-drug resistant clinical isolates of Mycobacterium tuberculosis (M. tb). In this work, we carried out additional synthesis of several TRSMs. The reaction scheme essentially followed the Grignard reaction and Friedel-Crafts alkylation, followed by insertion of a dialkylaminoethyl chain...
November 2016: SAR and QSAR in Environmental Research
https://www.readbyqxmd.com/read/27882115/retrospective-analysis-of-seven-breast-tuberculosis-cases
#17
Beyhan Çakar, Aydin Çiledağ
The present study aimed to evaluate the demographic data, diagnostic methods, therapeutic regimens and duration of therapy in 7 breast tuberculosis (BTB) cases. The data of BTB cases treated between January 2006 and December 2013 were retrospectively evaluated, with a total of 648 tuberculosis (TB) cases recorded during the 8-year period. Among these cases, 296 patients (50%) suffered from pulmonary TB, 278 (43%) from non-pulmonary TB and 45 (7%) from PTB plus NPTB. In total, 7 BTB were diagnosed, which constituted 1...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27879023/potential-effect-of-ezetimibe-against-mycobacterium-tuberculosis-infection-in-type-ii-diabetes
#18
I-Fang Tsai, Chiu-Ping Kuo, Andrew B Lin, Ming-Nan Chien, Hsin-Tsung Ho, Tsai-Yin Wei, Chien-Liang Wu, Yen-Ta Lu
BACKGROUND AND OBJECTIVE: Tuberculosis (TB) risk might be increased in patients with diabetes by factors other than hyperglycaemia, such as dyslipidaemia. Host lipids are essential energy sources used by mycobacteria to persist in a latent TB state. A potential therapy targeting cholesterol catabolism of mycobacteria has been proposed, but the potential of cholesterol-lowering drugs as anti-TB therapy is unclear. The purpose of this study was to determine the effects of ezetimibe, a 2-azetidinone cholesterol absorption inhibitor, on intracellular mycobacteria survival and dormancy...
November 23, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27878107/imaging-the-nadh-nad-homeostasis-for-understanding-the-metabolic-response-of-mycobacterium-to-physiologically-relevant-stresses
#19
Shabir A Bhat, Iram K Iqbal, Ashwani Kumar
The NADH:NAD(+) ratio is the primary indicator of the metabolic state of bacteria. NAD(H) homeostasis is critical for Mycobacterium tuberculosis (Mtb) survival and is thus considered an important drug target, but the spatio-temporal measurements of NAD(H) remain a challenge. Genetically encoded fluorescent biosensors of the NADH:NAD(+) ratios were recently described, paving the way for investigations of the metabolic state of pathogens during infection. Here we have adapted the genetically encoded biosensor Peredox for measurement of the metabolic state of Mtb in vitro and during infection of macrophage cells...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/27875026/disseminated-bcg-pneumonitis-revealing-severe-combined-immunodeficiencyxs-in-charge-syndrome
#20
Hyung Young Kim, Yoo-Mi Kim, Hee Ju Park
CHARGE (coloboma, heart defect, atresia choanae, retarded growth and development, genital hypoplasia, and ear anomalies/deafness) syndrome is a rare genetic disorder caused by CHD7 mutation and is related to immunodeficiency. A 6-month-old girl with right lung agenesis, congenital heart defects, and ear anomalies developed repeated and serious respiratory infection for a short period. She was clinically diagnosed with typical CHARGE syndrome with severe combined immunodeficiency (T-, B+, NK-); however, CHD7 mutation was not detected...
November 22, 2016: Pediatric Pulmonology
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