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https://www.readbyqxmd.com/read/28823115/identification-of-distinctive-clinical-significance-in-hospitalized-patients-with-endoscopic-duodenal-mucosal-lesions
#1
Yeji Han, Hye-Kyung Jung, Ji Young Chang, Chang Mo Moon, Seong-Eun Kim, Ki-Nam Shim, Sung-Ae Jung, Joo-Young Kim, Ji-Yun Bae, Sae-In Kim, Ji-Hyun Lee, Sanghui Park
Background/Aims: Duodenitis is not infrequent finding in patient undergoing endoscopy. However, hospitalized patients have a higher incidence of secondary duodenal mucosal lesions that might be related with inflammatory bowel disease (IBD), cytomegalovirus (CMV) infection, tuberculosis, immunologic disorders, or other rare infections. We aimed to identify clinicopathologic features of duodenal mucosal lesions in hospitalized patients. Methods: All hospitalized patients having duodenal mucosal lesions were identified by endoscopic registration data and pathologic data query from 2011 to 2014...
August 21, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28823010/the-reliability-of-rifampicin-resistance-as-a-proxy-for-multidrug-resistant-tuberculosis-a-systematic-review-of-studies-from-iran
#2
REVIEW
M J Nasiri, S Zamani, A Pormohammad, M M Feizabadi, H R Aslani, M Amin, R Halabian, A A Imani Fooladi
In Iran, patients showing rifampicin (RIF) resistance detected by the Xpert® MTB/RIF assay are considered as candidates for multidrug-resistant tuberculosis (MDR-TB) treatment. Despite the fact that RIF resistance has been used as a proxy for MDR-TB, little is known about the proportion of isoniazid (INH) resistance patterns in RIF-resistant TB. We systematically searched MEDLINE, Embase, and other databases up to March 2017 for studies addressing the proportion of INH resistance patterns in RIF-resistant TB in Iran...
August 19, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28822421/-one-case-of-primary-nasal-tuberculosis
#3
K Zhang, P Qu, T Fu, Y Jiang, N Li
No abstract text is available yet for this article.
August 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28822416/-analyses-of-misdiagnosis-of-two-cases-of-nasal-cavity-and-paranasal-sinus-tuberculosis
#4
J D Chen, M C Sun, L M Song, L Song, L L Zhang, J Lin
No abstract text is available yet for this article.
August 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28822410/-laryngeal-tuberculosis-under-the-laryngeal-stroboscopy
#5
P Y Zhuang
No abstract text is available yet for this article.
August 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28822333/virtual-screening-and-repositioning-of-inconclusive-molecules-of-beta-lactamase-bioassays-a-data-mining-approach
#6
Akshata Gad, Andrew Titus Manuel, Jinuraj K R, Lijo John, Sajeev R, Shanmuga Priya V G, Abdul Jaleel U C
This study focuses on the best possible way forward in utilizing inconclusive molecules of PubChem bioassays AID 1332, AID 434987 and AID 434955, which are related to beta-lactamase inhibitors of Mycobacterium tuberculosis (Mtb). The inadequacy in the experimental methods that were observed during the invitro screening resulted in an inconclusive dataset. This could be due to certain moieties present within the molecules. In order to reconsider such molecules, insilico methods can be suggested in place of invitro methods For instance, datamining and medicinal chemistry methods: have been adopted to prioritise the inconclusive dataset into active or inactive molecules...
July 29, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28821804/nos2-deficient-mice-with-hypoxic-necrotizing-lung-lesions-predict-outcomes-of-tuberculosis-chemotherapy-in-humans
#7
Martin Gengenbacher, Maria A Duque-Correa, Peggy Kaiser, Stefanie Schuerer, Doris Lazar, Ulrike Zedler, Stephen T Reece, Amit Nayyar, Stewart T Cole, Vadim Makarov, Clifton E Barry Iii, Véronique Dartois, Stefan H E Kaufmann
During active TB in humans a spectrum of pulmonary granulomas with central necrosis and hypoxia exists. BALB/c mice, predominantly used in TB drug development, do not reproduce this complex pathology thereby inaccurately predicting clinical outcome. We found that Nos2 (-/-) mice incapable of NO-production in immune cells as microbial defence uniformly develop hypoxic necrotizing lung lesions, widely observed in human TB. To study the impact of hypoxic necrosis on the efficacy of antimycobacterials and drug candidates, we subjected Nos2 (-/-) mice with TB to monotherapy before or after establishment of human-like pathology...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821621/protein-kinase-g-confers-survival-advantage-to-mycobacterium-tuberculosis-during-latency-like-conditions
#8
Mehak Zahoor Khan, Ashima Bhaskar, Sandeep Upadhyay, Pooja Kumari, Raju S Rajmani, Preeti Jain, Amit Singh, Dhiraj Kumar, Neel Sarovar Bhavesh, Vinay Kumar Nandicoori
Protein Kinase G (PknG), a thioredoxin-fold containing eukaryotic like serine/threonine protein kinase (STPK), is a virulence factor in the Mycobacterium tuberculosis, required for inhibition of phago-lysosomal fusion. Here, we unravelled novel functional facets of PknG during latency like conditions. We find that PknG mediates persistence under stressful conditions like hypoxia and abets drug tolerance. PknG mutant displayed minimal growth in nutrient limiting conditions suggesting its role in modulating cellular metabolism...
August 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28821374/il-17-production-of-neutrophils-enhances-antibacteria-ability-but-promotes-arthritis-development-during-mycobacterium-tuberculosis-infection
#9
Shengfeng Hu, Wenting He, Xialin Du, Jiahui Yang, Qian Wen, Xiao-Ping Zhong, Li Ma
To our knowledge, no studies have examined the role of IL-17 production by neutrophils in immune defense against Mycobacterium tuberculosis (MTB) infection and the pathogenesis of rheumatoid arthritis (RA) caused by MTB infection. Here, we determined that neutrophils express IL-17 in an autocrine IL-6- and IL-23-dependent manner during MTB infection. MTB H37Rv-induced IL-6 production was dependent on the NF-κB, p38, and JNK signaling pathways; however, IL-23 production was dependent on NF-κB and EKR in neutrophils...
August 9, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28821299/pknb-remains-an-essential-and-a-conserved-target-for-drug-development-in-susceptible-and-mdr-strains-of-m-tuberculosis
#10
Anamika Gupta, Sudhir K Pal, Divya Pandey, Najneen A Fakir, Sunita Rathod, Dhiraj Sinha, S SivaKumar, Pallavi Sinha, Mycal Periera, Shilpa Balgam, Gomathi Sekar, K R UmaDevi, Shampa Anupurba, Vijay Nema
BACKGROUND: The Mycobacterium tuberculosis (M.tb) protein kinase B (PknB) which is now proved to be essential for the growth and survival of M.tb, is a transmembrane protein with a potential to be a good drug target. However it is not known if this target remains conserved in otherwise resistant isolates from clinical origin. The present study describes the conservation analysis of sequences covering the inhibitor binding domain of PknB to assess if it remains conserved in susceptible and resistant clinical strains of mycobacteria picked from three different geographical areas of India...
August 18, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28821264/impact-of-early-initiation-versus-national-standard-of-care-of-antiretroviral-therapy-in-swaziland-s-public-sector-health-system-study-protocol-for-a-stepped-wedge-randomized-trial
#11
Fiona J Walsh, Till Bärnighausen, Wim Delva, Yvette Fleming, Gavin Khumalo, Charlotte L Lejeune, Sikhathele Mazibuko, Charmaine Khudzie Mlambo, Ria Reis, Donna Spiegelman, Mandisa Zwane, Velephi Okello
BACKGROUND: There is robust clinical evidence to support offering early access to antiretroviral treatment (ART) to all HIV-positive individuals, irrespective of disease stage, to both improve patient health outcomes and reduce HIV incidence. However, as the global treatment guidelines shift to meet this evidence, it is still largely unknown if early access to ART for all (also referred to as "treatment as prevention" or "universal test and treat") is a feasible intervention in the resource-limited countries where this approach could have the biggest impact on the course of the HIV epidemics...
August 18, 2017: Trials
https://www.readbyqxmd.com/read/28821234/incident-mycobacterium-tuberculosis-infection-in-household-contacts-of-infectious-tuberculosis-patients-in-brazil
#12
Edward C Jones-López, Carlos Acuña-Villaorduña, Geisa Fregona, Patricia Marques-Rodrigues, Laura F White, David Jamil Hadad, Lucilia Pereira Dutra-Molina, Solange Vinhas, Avery I McIntosh, Mary Gaeddert, Rodrigo Ribeiro-Rodrigues, Padmini Salgame, Moises Palaci, David Alland, Jerrold J Ellner, Reynaldo Dietze
BACKGROUND: In household contact investigations of tuberculosis (TB), a second tuberculin skin test (TST) obtained several weeks after a first negative result consistently identifies individuals that undergo TST conversion. It remains unclear whether this delay in M. tuberculosis infection is related to differences in the infectious exposure, TST boosting, partial host resistance, or some other factor. METHODS: We conducted a household contact study Vitória, Brazil...
August 18, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28820984/identification-of-m-tuberculosis-antigens-in-the-sera-of-tuberculosis-patients-using-biomimetic-affinity-chromatography-in-conjunction-with-esi-cid-ms-ms
#13
Guorong Ma, Jinting Pan, Jincheng Han, Lina Gao, Shulin Zhang, Rongxiu Li
The profiling of abnormally-expressed proteins in host cells using mass spectrometry (MS) analysis is a classical approach for screening disease-associated biomarkers in clinical diagnosis. However, few pathogen-specific antigens can currently be detected in serum using this proteomic approach, since these are very low-abundant proteins that are easily masked by host high-abundant proteins. Identification of pathogen-specific antigens in the sera of tuberculosis patients is crucial for the clinical diagnosis of this infectious disease, especially in immune-compromised patients...
July 31, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28820946/proteogenomic-investigation-of-strain-variation-in-clinical-mycobacterium-tuberculosis-isolates
#14
Tiaan Heunis, Anzaan Dippenaar, Robin M Warren, Paul D van Helden, Ruben G van der Merwe, Nicolaas C Gey van Pittius, Arnab Pain, Samantha L Sampson, David L Tabb
Mycobacterium tuberculosis consists of a large number of different strains that display unique virulence characteristics. Whole-genome sequencing has revealed substantial genetic diversity among clinical M. tuberculosis isolates, and elucidating the phenotypic variation encoded by this genetic diversity will be of utmost importance to fully understand M. tuberculosis biology and pathogenicity. In this study we integrated whole-genome sequencing and mass spectrometry (GeLC-MS/MS) to reveal strain-specific characteristics in the proteomes of two clinical M...
August 18, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28820943/the-active-site-flexibility-of-mycobacterium-tuberculosis-isocitrate-lyase-in-dimer-form
#15
Yie-Vern Lee, Sybing Choi, Habibah Wahab, Yee Siew Choong
Tuberculosis (TB) still remains as global threat due to the emerging of drug resistant strain. Instead of focus on drug target of active stage TB, we are highlighting the isocitrate lyase (ICL) at the dormant stage TB. ICL is one of the persistent factors for Mycobacterium tuberculosis (MTB) to survive during dormant phase. In addition, the absent of ICL in human has made ICL a potential drug target for TB therapy. However, the dynamics details of ICL which could give insights to the ICL-ligand interaction is yet to be solved...
August 18, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28820679/tuberculosis-related-diabetes-is-it-reversible-after-complete-treatment
#16
Huma Aftab, Dirk L Christensen, Atiqa Ambreen, Mohammad Jamil, Peter Garred, Jørgen H Petersen, Susanne D Nielsen, Ib C Bygbjerg
Individuals with newly diagnosed tuberculosis (TB) were screened for diabetes (DM) with fasting plasma glucose (FPG) in Pakistan. A significant decrease in FPG was observed when TB was treated. Of those with newly diagnosed DM, 46% and 62% no longer had hyperglycemia after 3 and 6 months, respectively. Individuals with known DM also showed a significant decrease in fasting plasma levels when treated for TB, but after 3 months none had normoglycemia, and after 6 months 9.2% were normoglycemic. Thus, TB-related DM may abate when the stress terminates, as is the case in gestational DM...
August 7, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820678/a-new-hybrid-model-using-an-autoregressive-integrated-moving-average-and-a-generalized-regression-neural-network-for-the-incidence-of-tuberculosis-in-heng-county-china
#17
Wudi Wei, Junjun Jiang, Lian Gao, Bingyu Liang, Jiegang Huang, Ning Zang, Chuanyi Ning, Yanyan Liao, Jingzhen Lai, Jun Yu, Fengxiang Qin, Hui Chen, Jinming Su, Li Ye, Hao Liang
It is a daunting task to eradicate tuberculosis completely in Heng County due to a large transient population, human immunodeficiency virus/tuberculosis coinfection, and latent infection. Thus, a high-precision forecasting model can be used for the prevention and control of tuberculosis. In this study, four models including a basic autoregressive integrated moving average (ARIMA) model, a traditional ARIMA-generalized regression neural network (GRNN) model, a basic GRNN model, and a new ARIMA-GRNN hybrid model were used to fit and predict the incidence of tuberculosis...
July 31, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820423/-risk-factors-and-special-aspects-forgenital-tuberculosis-diagnostics
#18
G Lortkipanidze, N Kintraia, K Vacharadze, F Tsaava
Was examined 453 women, who applied to National Center for Tuberculosis and Lung Diseases for genital tuberculosis diagnostics. GTB was detected in 289 cases, in 164 cases GTB results was negative (control group). In 10 cases GTB was combined with pulmonary tuberculosis (OR-1,13). Risk factors are previous diseases of female reproductive organs- intracellular infection (OR-1,08), sexually transmitted diseases (OR-1,25), nonspecific inflammatory diseases (OR-1,009), interruption of pregnancy (OR-1,26), artificial abortions (OR-1,11), the most specific signs of Genital Tuberculosis is a pain in the stomach area (P-0,023), dysmenorrhoea (P-0,00001), intestinal obstruction (P-0,0006), heat (P-0,00001), liquid presence in posterior vault (P-0,007), hydrosalpinx (P-0,00001), Fallopian tubes deformation (P-0,000003), oophoritic cyst (P-0,067), adhesive process in small pelvis (P-0,0006)...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28820170/paradoxical-worsening-of-a-case-of-tb-subretinal-abscess-with-serpiginous-like-choroiditis-following-the-initiation-of-antitubercular-therapy
#19
Sudha K Ganesh, B Sowkath Ali
A 37-year-old immunocompetent male patient presented with the blurring of vision, both eyes for the past1 year. Fundus examination revealed bilateral multiple subretinal abscesses with areas of healed serpiginous-like choroiditis. Laboratory investigations showed positive tuberculin skin test, positive QuantiFERON TB-Gold Test, and high resolution computed tomography chest showed enlarged mediastinal lymph nodes. The aqueous sample revealed polymerase chain reaction (PCR) positive for Mycobacterium tuberculosis (MTB) (MPB64 genome)...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28819600/extensively-drug-resistant-tuberculosis-of-the-lumbar-spine-in-a-six-year-old-child-a-case-report
#20
Siddharth Sanjay Shah, Aakanksha Arvind Goregaonkar, Arvind Balkrishna Goregaonkar
INTRODUCTION: The emergence of extensively drug-resistant tuberculosis (XDR-TB) is a challenging paradigm shift faced by the TB control programs worldwide today. The treatment is further compounded with unique management difficulties faced in pediatric patients. Treatment of XDR-TB requires prolonged chemotherapy with second-line drugs which offer lesser potency and increased risk of drug-related side effects. We present a case of spinal XDR-TB in a child, managed with extended second-line antitubercular chemotherapy (ATT)...
March 2017: Journal of Orthopaedic Case Reports
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