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https://www.readbyqxmd.com/read/29458855/streptomyces-puniceus-strain-as13-production-characterization-and-evaluation-of-bioactive-metabolites-a-new-face-of-dinactin-as-an-antitumor-antibiotic
#1
Aehtesham Hussain, Muzafar Ahmad Rather, Mohd Saleem Dar, N A Dangroo, Mushtaq A Aga, Arem Qayum, Aabid Manzoor Shah, Zahoor Ahmad, Mohd Jamal Dar, Qazi Parvaiz Hassan
A highly active actinobacterial strain isolated from untapped areas of Northwestern Himalayas and characterised as Streptomyces puniceus strain AS13 by 16S rRNA gene sequencing was selected for production of bioactive metabolites. The bioassay-guided fractionation of microbial cultured ethyl acetate extract of the strain, led to isolation of macrotetrolide compound 1 (Dinactin) and compound 2 (1-(2,4-dihydroxy-6-methylphenyl)-ethanone). Structures of the isolated compounds were elucidated interpretation of NMR and other spectroscopic data including HR-ESI-MS, FT-IR...
March 2018: Microbiological Research
https://www.readbyqxmd.com/read/29454849/escmid-study-group-for-infections-in-compromised-hosts-esgich-consensus-document-on-the-safety-of-targeted-and-biological-therapies-an-infectious-diseases-perspective-intracellular-signaling-pathways-tyrosine-kinase-and-mtor-inhibitors
#2
REVIEW
Mark Reinwald, Jose T Silva, Nicolas J Mueller, Jesús Fortún, Christian Garzoni, Johan W de Fijter, Mario Fernández-Ruiz, Paolo Grossi, Jose María Aguado
BACKGROUND: The present review is part of the ESCMID Study Group for Infections in Compromised Hosts (ESGICH) Consensus Document on the safety of targeted and biological therapies. AIMS: To review, from an Infectious Diseases perspective, the safety profile of therapies targeting different intracellular signaling pathways and to suggest preventive recommendations. SOURCES: Computer-based MEDLINE searches with MeSH terms pertaining to each agent or therapeutic family...
February 15, 2018: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29454243/health-inequities-faced-by-ethiopian-migrant-domestic-workers-in-lebanon
#3
Bina Fernandez
This paper investigates the healthcare needs, access to healthcare, and healthcare strategies of Ethiopian migrant domestic workers (MDWs) in Lebanon, drawing on qualitative empirical research. The analysis focusses on four types of health care needs: minor illnesses, pregnancies, serious illnesses (such as cancer, tuberculosis or heart problems), and emergencies (due to accidents, suicide attempts or assaults). Predictably, access to healthcare is distinctly differentiated according to an MDW's status as a documented, freelancer, or undocumented worker...
February 14, 2018: Health & Place
https://www.readbyqxmd.com/read/29451019/antimicrobial-substances-from-the-rare-actinomycete-nonomuraea-rhodomycinica-nr4-asc07-t
#4
Khomsan Supong, Paranee Sripreechasak, Wongsakorn Phongsopitanun, Somboon Tanasupawat, Kannawat Danwisetkanjana, Nantiya Bunbamrung, Pattama Pittayakhajonwut
Nonomuraea rhodomycinica NR4-ASC07 T is a rare actinomycete isolated from soil in Sirindhorn peat swamp forest. The crude extract of its culture broth exhibited antimicrobial and anticancer against diverse human pathogens and cancer cells. The chemical investigation of the crude extract led to the isolation of two new metabolites named nonomuric acid (1) and 3-hydroxy deoxydaunorubicinol aglycone (2), along with two known bioactive compounds [ε-rhodomycinone (3) and 7-deoxy-13-dihydrocarminomycinone (4)]. Compounds 1 and 3 showed antimalarial activity with the half maximal inhibitory concentration (IC 50 ) of 8...
February 16, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29448254/microarray-expression-profile-of-circular-rnas-in-peripheral-blood-mononuclear-cells-from-active-tuberculosis-patients
#5
Zi-Kun Huang, Fang-Yi Yao, Jian-Qing Xu, Zhen Deng, Ri-Gu Su, Yi-Ping Peng, Qing Luo, Jun-Ming Li
BACKGROUND/AIMS: Dysregulated expression of circular RNAs (circRNAs) was demonstrated to be implicated in many diseases. Here, we aimed to determine circRNA profile in peripheral blood mononuclear cells (PBMCs) from active tuberculosis (TB) patients to identify novel biomarkers for TB. METHODS: Expression profile of circRNAs in PBMCs from 3 active pulmonary TB patients and 3 healthy controls were analyzed by microarray assay. Six circRNAs were selected for validation using real time-quantitative PCR (qRT-PCR) in 40 TB patients and 40 control subjects...
February 9, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29444723/evaluation-of-the-xpert-mtb-rif-performance-on-tissues-potential-impact-on-airborne-infection-isolation-at-a-tertiary-cancer-care-center
#6
Tracy McMillen, Shauna C Usiak, Liang Hua Chen, Luz Gomez, Peter Ntiamoah, Meera R Hameed, Indre Budvytiene, Niaz Banaei, Mini Kamboj, N Esther Babady
OBJECTIVES In this study, we sought to evaluate the performance of the Xpert MTB/RIF (Cepheid) assay for the detection of Mycobacterium tuberculosis (MTB) complex DNA on fresh and formalin-fixed, paraffin-embedded (FFPE) tissue specimens from oncology patients in an area with a low prevalence of tuberculosis. We also aimed to retrospectively assess the potential impact of Xpert MTB/RIF on the duration of airborne infection isolation (AII). SETTING A 473-bed, tertiary-care cancer center in New York City. DESIGN A total of 203 tissue samples (101 FFPE and 102 fresh) were tested using Xpert MTB/RIF, including 133 pulmonary tissue samples (65...
February 15, 2018: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/29424300/targeting-the-folate-receptor-improving-efficacy-in-inorganic-medicinal-chemistry
#7
Pauraic Mc Carron, Aisling Crowley, Denis O'Shea, Malachy McCann, Orla Howe, Mary Hunt, Michael Devereux
The discovery of the high-affinity, high-specificity folate receptor in mamalian kidney cells, coupled with the ability of folate to enter cells by folate receptor-mediated endocytosis and the subsequent elucidation of the folate receptor's overexpression in specific cancer cell types; heralded the arrival of the area of chemotherapeutic folate targeting. The application of purely organic folate-based small-molecule drug conjugates that selectively target the folate receptor, which is over expressed in several diseases such as cancer, is well established...
February 9, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29414451/the-influence-of-psychiatric-disorders-on-the-course-of-lung-cancer-chronic-obstructive-pulmonary-disease-and-tuberculosis
#8
Melina Gade Sikjær, Anders Løkke, Ole Hilberg
BACKGROUND: This Danish study evaluated the association between psychiatric comorbidity and the course of chronic obstructive pulmonary disease (COPD), lung cancer and tuberculosis (TB) of an entire nation. METHODS: Data from the Danish National Patient Registry (1998-2009), material status, gender, educational level, comorbidities, age at diagnosis and death, medication, and causes of death were extracted from national databases. We identified 71,874 patients with COPD and found 32,282 with a pre-index psychiatric comorbidity, 20,787 patients with lung cancer and found 8406 with a pre-index psychiatric comorbidity, and 3495 patients with TB and found 797 with a pre-index psychiatric morbidity...
February 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/29412874/building-laboratory-capacity-to-strengthen-health-systems-the-partners-in-health-experience
#9
REVIEW
Juan Daniel Orozco, Lauren A Greenberg, Ishaan K Desai, Fabienne Anglade, Deogratias Ruhangaza, Mira Johnson, Louise C Ivers, Danny A Milner, Paul E Farmer
The diagnostic laboratory is essential to patient care and to the achievement of health equity. Through the development of quality laboratories in settings burdened by poverty and weak health systems, Partners In Health has demonstrated the critical contributions of clinical laboratories to the care of patients with HIV, tuberculosis, and cancer, among other conditions. The lessons learned through the organization's experience include the importance of well-trained and well-supported staff; reliable access to supplies, reagents, and diagnostic equipment; adequate facilities to provide diagnostic services; the integration of laboratories into networks of care; and accompaniment of the public health sector...
March 2018: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/29411725/vascular-endothelial-growth-factor-in-pleural-effusions-and-correlation-with-radiologic-and-biochemical-parameters
#10
N Bayram, Y Karakan, M Uyar, B Ozyurt, A Filiz
INTRODUCTION: Pleural effusion is a common clinical problem with management difficulties. The aim of this study is to evaluate vascular endothelial growth factor (VEGF) in differential diagnosis of pleural effusions and the presence of correlation between radiological features and biochemical properties. MATERIALS AND METHODS: The study included patients with pleural effusion. VEGF levels in the pleural fluid were measured by enzyme-linked immunosorbent assay. RESULTS: A total of 97 patients who had exudative pleural effusion related to lung cancer (n = 17), nonpulmonary malignancies (n = 25), mesothelioma (n = 9), pneumonia (n = 14), tuberculosis (n = 8), miscellaneous causes (n = 6), and transudative effusion (n = 18) were included...
January 2018: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29399706/differential-diagnostic-perspectives-provided-by-en-face-microscopic-examination-of-articular-surface-defects
#11
Bruce M Rothschild
Surface defects have a central position in diagnosis of articular pathology. Recognizing the limitations of standard radiologic techniques and those imposed by positioning and averaging artifacts on CT evaluation, direct visualization of surface defects was pursued to identify disease characteristics that would facilitate interpretation of radiologic findings. Epi-illumination surface microscopy was utilized to examine macroscopically recognized articular surface defects in individuals in the Hamann-Todd, Terry, and Huntington human skeletal collections with previously verified diagnoses of rheumatoid arthritis, spondyloarthropathy, juvenile inflammatory arthritis (JIA), calcium pyrophosphate deposition disease (CPPD), gout, metastatic cancer, multiple myeloma, septic arthritis, tuberculosis, fungal arthritis, histiocytosis and sickle cell anemia (Rothschild and Rothschild Clin Infect Dis 20(5):1402-1408, 1995; Rothschild et al...
February 4, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29399349/atypical-spleen-tuberculosis-in-a-melanoma-patient-accidentally-detected-during-a-18f-fdg-pet-ct-study-case-report
#12
Paulina Cegla, Arkadiusz Spychala, Andrzej Marszalek, Ewa Wierzchoslawska, Witold Cholewinski
The present study, discussed a rare case of a 50-year-old woman who was treated for malignant melanoma and underwent 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) examination for evaluation of disease. 18F-FDG-PET/CT examination was performed from the top of the head down to the knee using a Gemini TF PET/CT scanner 60 min following intravenous injection of radiotracer with mean activity of 364±75 MBq. Previous performed laboratory test and clinical examination was irrelevant...
January 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29394358/treatment-outcomes-of-multidrug-resistant-tuberculosis-in-taiwan-tackling-loss-to-follow-up
#13
Ming-Chih Yu, Chen-Yuan Chiang, Jen-Jyh Lee, Shun-Tien Chien, Chou-Jui Lin, Shih-Wei Lee, Chih-Bin Lin, Wen-Ta Yang, Ying-Hsun Wu, Yi-Wen Huang
Background: The proportion of treatment success among multidrug-resistant tuberculosis (MDR-TB) patients enrolled between 1992 and 1996 was 51.2%, and that among patients enrolled between 2000 and April 2007 was 61%. To address the challenge of MDR-TB, the Taiwan MDR-TB Consortium (TMTC) was established in May 2007. To assess the performance of the TMTC, we analyzed the data of patients enrolled in its first 5 years. Methods: Comprehensive care was provided at no cost to patients, who were usually hospitalized for one month initially...
January 31, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29387109/anti-tuberculosis-and-cytotoxic-evaluation-of-the-seaweed-sargassum-boveanum
#14
Vajihe Akbari, Saeed Zafari, Afsaneh Yegdaneh
Marine seaweeds produce a variety of compounds with different biological activities, including antituberculosis and anticancer effects. The aim of this study was to investigate anti-tuberculosis activity of Sargassum boveanum (S. boveanum) and cytotoxicity of different fractions of this seaweed. S. boveanum was collected from Persian Gulf. The plant was extracted by maceration with methanol-ethyl acetate solvent. The extract was evaporated and partitioned by Kupchan method to yield hexane, tricholoroethane, chloroform, and butanol partitions...
February 2018: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29384034/development-of-pulmonary-tuberculosis-following-treatment-with-anti-pd-1-for-non-small-cell-lung-cancer
#15
Kristian Hastoft Jensen, Gitte Persson, Anna-Louise Bondgaard, Mette Pøhl
No abstract text is available yet for this article.
January 31, 2018: Acta Oncologica
https://www.readbyqxmd.com/read/29373690/novel-function-of-cyclooxygenase-2-suppressing-mycobacteria-by-promoting-autophagy-via-protein-kinase-b-mammalian-target-of-rapamycin-pathway
#16
Wenjing Xiong, Qian Wen, Xialin Du, Jinli Wang, Wenting He, Ruining Wang, Shengfeng Hu, Xinying Zhou, Jiahui Yang, Yuchi Gao, Li Ma
In Mycobacterium tuberculosis-infected macrophages, cyclooxygenase-2 (COX-2) expression considerably increases to defend the body against mycobacteria by regulating adaptive immunity and restoring the mitochondrial inner membrane. Moreover, in cancer cells, COX-2 enhances the autophagy machinery, an important bactericidal mechanism. However, the association between M. tuberculosis-induced COX-2 and autophagy-mediated anti-mycobacterial response has not been explored. Here, COX-2 expression silencing reduced the autophagy and bactericidal activity against intracellular M...
January 24, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29371930/identification-and-comparison-of-novel-circular-rnas-with-associated-co-expression-and-competing-endogenous-rna-networks-in-pulmonary-tuberculosis
#17
Xing Zhang, Min Zhu, Rong Yang, Weifeng Zhao, Xiaolong Hu, Jianhe Gan
Pulmonary tuberculosis (PTB) is caused by Mycobacterium tuberculosis and is one of the most serious diseases worldwide. Circular RNAs (circRNAs) are a large class of non-coding RNAs that were identified with potential regulatory roles in disease pathogenesis and progression. In this study, we used whole transcriptome sequencing to identify circRNAs from 3 PTB patients and 3 healthy individuals to determine the expression pattern of circRNAs in blood and the circRNA molecular regulatory networks in PTB pathogenesis...
December 26, 2017: Oncotarget
https://www.readbyqxmd.com/read/29371719/awareness-of-risk-factors-and-fallacies-associated-with-urinary-bladder-cancer-in-our-population-a-prospective-survey
#18
Muhammad Hammad Mithani, Shariq Anis Khan, Salman El Khalid, Rakhshanda Siddique, Hafsa Humayun, Adnan Siddiq Awan
OBJECTIVE: To determine the awareness of risk factors for bladder cancer and false beliefs associated with this disease. METHODS: This cross-sectional study was conducted at the Kidney Centre, Karachi, from January to February 2015, and comprised subjects who presented to the various in-house clinics. The subjects were interviewed using a questionnaire comprising demographic parameters, level of education and awareness of smoking hazards, knowledge and false beliefs associated with bladder cancer...
January 2018: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/29368890/-diagnostic-rentability-of-close-pleural-biopsy-tru-cut-vs-cope
#19
Héctor Glenn Valdez-López, Alma Iris Cano-Rodríguez, Mario Montemayor-Chapa, Juan Francisco Castillo-Sánchez
BACKGROUND: The prevalence of pleural effusion in Mexico is over 400 per 100 000 inhabitants. The etiology is infectious in 45.7% and neoplastic in 32.6%. Closed pleural biopsy sensibility is 48-70% in cancer and 50-59% in tuberculosis using Cope or Abrams needle. In 1989, Tru-cut needle biopsy was described in a small study for massive pleural effusions with a sensibility of 86%. Our Institute has a wide experience with this infrequently procedure with reliable results than using Cope needle...
January 2018: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/29345292/preparation-and-characterization-of-the-antibody-recognizing-amacr-inside-its-catalytic-center
#20
Boris V Popov, Gleb I Sutula, Nikolay S Petrov, Ximing J Yang
Alpha-methylacyl-CoA racemase (AMACR) catalyzes the β-oxidation of fatty acids and is overexpressed in carcinomas in various organs, while its inactivation results in the inhibition of cancer growth. In the present study, we prepared and characterized 20 different mouse monoclonal antibodies against human AMACR. In the course of biopanning of a phage peptide commercial library against in-house prepared 6H9 and 2A5, and commercial 13H4 antibodies, 10 phage mimotopes recognized by each type of the antibody were selected...
February 2018: International Journal of Oncology
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