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https://www.readbyqxmd.com/read/28546234/multiplex-pcr-based-detection-of-mycobacterium-tuberculosis-and-mycobacterium-avium-in-a-single-host-one-coloniser-or-dual-infection
#1
Praveen Sharma, Amanjit Bal, Kusum Sharma, Ashish Bhalla
No abstract text is available yet for this article.
May 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28545379/tissue-engineering-in-achilles-tendon-reconstruction-the-role-of-stem-cells-growth-factors-and-scaffolds
#2
D S Pillai, Bal S Dhinsa, Wasim Khan
Achilles tendon injuries are common, and present a challenge in the acute and chronic setting. There is significant morbidity associated with the injury and the numerous management strategies, as well as financial implications to the patient and the health service. To date, repair tissue from all methods of management fail to achieve the same functional and biomechanical properties as the native tendon. The use of tissue engineering technology may reduce morbidity, improve the biomechanical properties of repair tissue and reduce the financial burden...
May 23, 2017: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28543283/targeting-pp2a-and-proteasome-activity-ameliorates-features-of-allergic-airway-disease-in-mice
#3
Prema M Nair, Malcolm R Starkey, Tatt Jhong Haw, Gang Liu, Jay C Horvat, Jonathan C Morris, Nikki M Verrills, Andrew R Clark, Alaina J Ammit, Philip M Hansbro
BACKGROUND: Asthma is an allergic airway disease (AAD) caused by aberrant immune responses to allergens. Protein phosphatase-2A (PP2A) is an abundant serine/threonine phosphatase with anti-inflammatory activity. The ubiquitin proteasome system (UPS) controls many cellular processes, including the initiation of inflammatory responses by protein degradation. We assessed if enhancing PP2A activity with Fingolimod (FTY720) or 2-amino-4-(4-(heptyloxy) phenyl)-2-methylbutan-1-ol (AAL(S) ), or inhibiting proteasome activity with Bortezomib (BORT) could suppress experimental AAD...
May 24, 2017: Allergy
https://www.readbyqxmd.com/read/28542132/inhibition-of-sdf-1-receptors-cxcr4-and-cxcr7-attenuates-acute-pulmonary-inflammation-via-the-adenosine-a2b-receptor-on-blood-cells
#4
Franziska Magdalena Konrad, Nadine Meichssner, Annette Bury, Kristian-Christos Ngamsri, Jörg Reutershan
Acute pulmonary inflammation is characterized by migration of polymorphonuclear neutrophils into the different compartments of the lung. Recent studies showed evidence that the chemokine stromal cell-derived factor (SDF)-1 and its receptors CXCR4 and CXCR7 influence migration of immune cells and their activity was linked to adenosine concentrations. We investigated the particular role of CXCR4- and CXCR7-inhibition and the potential link to the adenosine A2B-receptor, which plays an important anti-inflammatory role in the lung...
May 25, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28540501/morphometric-characterization-of-rat-and-human-alveolar-macrophage-cell-models-and-their-response-to-amiodarone-using-high-content-image-analysis
#5
Ewelina Hoffman, Aateka Patel, Doug Ball, Jan Klapwijk, Val Millar, Abhinav Kumar, Abigail Martin, Rhamiya Mahendran, Lea Ann Dailey, Ben Forbes, Victoria Hutter
PURPOSE: Progress to the clinic may be delayed or prevented when vacuolated or "foamy" alveolar macrophages are observed during non-clinical inhalation toxicology assessment. The first step in developing methods to study this response in vitro is to characterize macrophage cell lines and their response to drug exposures. METHODS: Human (U937) and rat (NR8383) cell lines and primary rat alveolar macrophages obtained by bronchoalveolar lavage were characterized using high content fluorescence imaging analysis quantification of cell viability, morphometry, and phospholipid and neutral lipid accumulation...
May 24, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28538080/formulation-and-characterization-of-lutetium-177-labeled-stannous-tin-colloid-for-radiosynovectomy
#6
Geetanjali Arora, Manoranjan Singh, Pragati Jha, Sarthak Tripathy, Chandrasekhar Bal, Anirban Mukherjee, Shamim A Shamim
OBJECTIVE: Easy large-scale production, easy availability, cost-effectiveness, long half-life, and favorable radiation characteristics have made lutetium-177 (Lu) a preferred radionuclide for use in therapy. Lutetium-177-labeled stannous (Lu-Sn) colloid particles were formulated for application in radiosynovectomy, followed by in-vitro and in-vivo characterization. METHODS: Stannous chloride (SnCl2) solution and Lu were heated together, the pH was adjusted, and the particles were recovered by centrifugation...
May 19, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28537079/green-water-dispersible-photoluminescent-on-off-on-probe-for-selective-detection-of-fluoride-ions
#7
Pallavi Singhal, Bal Govind Vats, Sanjay Kumar Jha, Suman Neogy
Considering the high toxicity and widespread availability of fluoride ion in different environmental matrices, it is imperative to design a probe for its detection. In view of this a selective fluorescent on-off-on probe based on carbon quantum dots (CQDs) and Eu3+ has been designed. We have synthesized water soluble carboxylic acid functionalized CQDs and monitored its interaction with Eu3+. On addition of Eu3+ ions luminescence quenching in CQDs emission was observed (switch-off). We investigate the reason for this luminescence quenching using time resolved emission and high resolution transmission electron microscopy (HRTEM) studies and observed that both electron transfer from CQDs to Eu3+ and aggregation of CQDs are responsible for luminescence quenching...
May 24, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28536862/mechanisms-of-hepatotoxicity-associated-with-the-monocyclic-%C3%AE-lactam-antibiotic-bal30072
#8
Franziska Paech, Simon Messner, Jochen Spickermann, Mathias Wind, Anne-Hortense Schmitt-Hoffmann, Anne Therese Witschi, Brett A Howell, Rachel J Church, Jeff Woodhead, Marc Engelhardt, Stephan Krähenbühl, Martina Maurer
BAL30072 is a new monocyclic β-lactam antibiotic under development which provides a therapeutic option for the treatment of severe infections caused by multi-drug-resistant Gram-negative bacteria. Despite the absence of liver toxicity in preclinical studies in rats and marmosets and in single dose clinical studies in humans, increased transaminase activities were observed in healthy subjects in multiple-dose clinical studies. We, therefore, initiated a comprehensive program to find out the mechanisms leading to hepatocellular injury using HepG2 cells (human hepatocellular carcinoma cell line), HepaRG cells (inducible hepatocytes derived from a human hepatic progenitor cell line), and human liver microtissue preparations...
May 23, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28536677/ccpa-affects-infectivity-of-staphylococcus-aureus-in-a-hyperglycemic-environment
#9
Markus Bischoff, Bodo Wonnenberg, Nadine Nippe, Naja J Nyffenegger-Jann, Meike Voss, Christoph Beisswenger, Cord Sunderkötter, Virginie Molle, Quoc Thai Dinh, Frank Lammert, Robert Bals, Mathias Herrmann, Greg A Somerville, Thomas Tschernig, Rosmarie Gaupp
Many bacteria regulate the expression of virulence factors via carbon catabolite responsive elements. In Gram-positive bacteria, the predominant mediator of carbon catabolite repression is the catabolite control protein A (CcpA). Hyperglycemia is a widespread disorder that predisposes individuals to an array of symptoms and an increased risk of infections. In hyperglycemic individuals, the bacterium Staphylococcus aureus causes serious, life-threatening infections. The importance of CcpA in regulating carbon catabolite repression in S...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28535788/endexpiratory-lung-volume-measurement-correlates-with-the-ventilation-perfusion-mismatch-in-lung-injured-pigs
#10
Jens Kamuf, Andreas Garcia-Bardon, Bastian Duenges, Tanghua Liu, Antje Jahn-Eimermacher, Florian Heid, Matthias David, Erik K Hartmann
BACKGROUND: In acute respiratory respiratory distress syndrome (ARDS) a sustained mismatch of alveolar ventilation and perfusion (VA/Q) impairs the pulmonary gas exchange. Measurement of endexpiratory lung volume (EELV) by multiple breath-nitrogen washout/washin is a non-invasive, bedside technology to assess pulmonary function in mechanically ventilated patients. The present study examines the association between EELV changes and VA/Q distribution and the possibility to predict VA/Q normalization by means of EELV in a porcine model...
May 23, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28535510/heat-shock-protein-a12b-protects-vascular-endothelial-cells-against-sepsis-induced-acute-lung-injury-in-mice
#11
Yi Chen, Lei Wang, Qiuxiang Kang, Xu Zhang, Guifang Yu, Xiaojian Wan, Jiafeng Wang, Keming Zhu
BACKGROUND: Pulmonary endothelial injury is a critical process in the pathogenesis of acute lung injury (ALI) during sepsis. Heat shock protein A12B (HSPA12B) is mainly expressed in endothelial cells and protects against several harmful factors. However, the effects of HSPA12B in sepsis-induced ALI and its potential mechanisms of action remain unclear. METHODS: For in vivo experiments, C57BL/6 mice were randomly divided into four groups (n=15): a sham operation group, a cecal ligation and puncture (CLP) group, a HSPA12B siRNA-CLP group and a negative control (NC) siRNA-CLP group...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28534238/a-fast-algorithm-for-bayesian-multi-locus-model-in-genome-wide-association-studies
#12
Weiwei Duan, Yang Zhao, Yongyue Wei, Sheng Yang, Jianling Bai, Sipeng Shen, Mulong Du, Lihong Huang, Zhibin Hu, Feng Chen
Genome-wide association studies (GWAS) have identified a large amount of single-nucleotide polymorphisms (SNPs) associated with complex traits. A recently developed linear mixed model for estimating heritability by simultaneously fitting all SNPs suggests that common variants can explain a substantial fraction of heritability, which hints at the low power of single variant analysis typically used in GWAS. Consequently, many multi-locus shrinkage models have been proposed under a Bayesian framework. However, most use Markov Chain Monte Carlo (MCMC) algorithm, which are time-consuming and challenging to apply to GWAS data...
May 22, 2017: Molecular Genetics and Genomics: MGG
https://www.readbyqxmd.com/read/28534218/flexible-bronchoscopy-in-non-resolving-pneumonia
#13
Javeed Iqbal Bhat, Wasim Ahmad Wani, Qazi Iqbal Ahmad, Bashir Ahmad Charoo, Syed Wajid Ali, Ambreen Ali Ahangar, Muzafar Ahmad
OBJECTIVE: To study the utility of diagnostic flexible bronchoscopy and bronchoalveolar lavage (BAL) in children with non-resolving pneumonia. METHODS: This was a cross-sectional study conducted in a tertiary care hospital from July 2015 through June 2016. Fifty-two consecutive children of both genders from 1 mo to 14 y of age with a diagnosis of non-resolving pneumonia were included. Flexible bronchoscopy was done in all patients with or without bronchoalveolar lavage (BAL)...
May 23, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28534140/protective-effects-of-neural-crest-derived-stem-cell-conditioned-media-against-ischemia-reperfusion-induced-lung-injury-in-rats
#14
Chung-Kan Peng, Shu-Yu Wu, Shih-En Tang, Min-Hui Li, Shih-Shiuan Lin, Shi-Jye Chu, Kun-Lun Huang
Current treatments for ischemia-reperfusion (IR)-induced acute lung injury are limited. Mesenchymal stem cell-conditioned medium (CM) has been reported to attenuate lung injury. Neural crest stem cells (NCSCs), a type of multipotent stem cells, are more easily obtained than mesenchymal stem cells. We hypothesize that NCSC-CM has anti-inflammatory properties that could protect against IR-induced lung injury in rats. In this study, NCSC-CM was derived from rat NCSCs. Typical acute lung injury was induced by 30-min ischemia followed by 90-min reperfusion in adult male Sprague-Dawley rats...
May 23, 2017: Inflammation
https://www.readbyqxmd.com/read/28534139/pulmonary-emphysema-cross-linking-with-pulmonary-fibrosis-and-vice-versa-a-non-usual-experimental-intervention-with-elastase-and-bleomycin
#15
Isabella Cattani-Cavalieri, Adriane Graça Reis, Emanuel Kennedy-Feitosa, Vanessa Pinho-Ribeiro, Manuella Lanzetti, Lycia Brito Gitirana, Bruna Romana-Souza, Luis Cristóvão Porto, Samuel Santos Valença
Elastase (PPE) is usually used for emphysema models, whereas bleomycin (BLM) is used for fibrosis models. The aim of this study was to investigate the effect of BLM in PPE-induced emphysema, as well as the effect of PPE in BLM-induced fibrosis. C57BL/6 mice were divided into five groups: control, PPE, BLM, PPE + BLM, and BLM + PPE. Mice received saline, PPE (3 U/mouse), or BLM (20 U/kg) by intranasal instillation. Mice from the BLM and BLM + PPE groups received BLM on day 0 and saline or PPE on day 21, respectively...
May 23, 2017: Inflammation
https://www.readbyqxmd.com/read/28533655/-18-f-fdg-pet-ct-in-localizing-additional-cns-lesion-in-a-case-of-langerhans-cell-histiocytosis-determining-accurate-extent-of-the-disease
#16
Shamim Ahmed Shamim, Sarthak Tripathy, Anirban Mukherjee, Chandrasekhar Bal, Madhavi Tripathi
Central nervous system involvement is a rare manifestation of Langerhans cell histiocytosis (LCH), with bone and skin lesions being more frequent. MR remains the investigation of choice for localizing brain lesions. However, due to poor sensitivity of MRI in detecting osseous and pulmonary lesions, it is not used routinely in staging purposes until and unless indicated. We hereby discuss a case of 6-year-old boy of LCH who was referred for 18-F-FDG PET/CT for staging and knowing the extent of the disease, but a lesion in hypothalamus was picked up incidentally on FDG PET-CT study that was confirmed by MRI...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533653/unusual-presentation-of-rare-cardiac-tumor-the-role-of-f-18-fluorodeoxyglucose-positron-emission-tomography-computed-tomography
#17
Sameer Kamalakar Taywade, Nishikant Avinash Damle, Madhavi Tripathi, S T ArunRaj, Averilicia Passah, Amarinder Singh Malhi, Sanjeev Kumar, Chandrasekhar Bal
Primary cardiac tumors are rare with angiosarcoma being the most common among malignant cardiac tumor. We present a case of 30-year-old female patient in whom F-18-fluorodeoxyglucose positron emission tomography/computed tomography demonstrated a necrotic mass in right atrium with multiple fluorodeoxyglucose avid lesions in both upper and lower alveolus, liver, multiple bones, and bilateral lungs. Patient underwent biopsy from gum swelling which revealed metastatic angiosarcoma.
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533651/primary-germ-cell-tumor-of-testes-with-extensive-lymph-nodal-and-splenic-metastases-masquerading-lymphoma-on-18-f-fdg-pet-ct
#18
Sarthak Tripathy, Anirban Mukherjee, Chandrasekhar Bal, Madhavi Tripathi, Saumyaranjan Mallick, Shamim Ahmed Shamim
Germ cell tumors (GCT) account for the 95% of the malignancies associated with testes. They are the most common solid malignancies affecting the males in the age group of 15-35 years. It is known to be bilateral in 3% of cases. We herein present FDG PET-CT findings of a case with biopsy proven GCT with multiple lymph nodal and splenic metastases mimicking lymphomatous neoplasm.
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533649/cerebral-toxoplasmosis-masquerading-cns-lymphoma-on-fdg-pet-ct-in-post-renal-transplant-patient
#19
Anirban Mukherjee, Chandrasekhar Bal, Madhavi Tripathi, Chandan Jyoti Das, Shamim Ahmed Shamim
20 year old post renal transplant patient developed recurrent episodes of seizure. MRI revealed focal lesion in right parieto-occipital lobe with perilesional edema. FDG PET-CT revealed multiple hypermetabolic lesions in bilateral cerebral hemisphere. Subsequent biopsy from the lesion demonstrated bradyzoites of Toxoplasma gondii with inflammatory cells and thereby, a confirmatory diagnosis of cerebral toxoplasmosis was made. This case demonstrates the fact that increased FDG uptake in cerebral lesions in post transplant patient should be interpreted with caution and confirmed with histopathological correlation...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533647/f-18-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-appearance-of-extramedullary-hematopoesis-in-a-case-of-primary-myelofibrosis
#20
Anirban Mukherjee, Chandrasekhar Bal, Madhavi Tripathi, Chandan Jyoti Das, Shamim Ahmed Shamim
A 44-year-old female with known primary myelofibrosis presented with shortness of breath. High Resolution Computed Tomography thorax revealed large heterogeneously enhancing extraparenchymal soft tissue density mass involving bilateral lung fields. F-18-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography revealed mildly FDG avid soft tissue density mass with specks of calcification involving bilateral lung fields, liver, and spleen. Subsequent histopathologic evaluation from the right lung mass was suggestive of extramedullary hematopoesis...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
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