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https://www.readbyqxmd.com/read/29791949/the-global-neurological-burden-of-tuberculosis
#1
Kiran Thakur, Mitashee Das, Kelly E Dooley, Amita Gupta
Central nervous system (CNS) involvement of tuberculosis (TB) is the most severe manifestation of TB and accounts for approximately 5 to 10% of all extrapulmonary TB (EPTB) cases and approximately 1% of all TB cases. TB meningitis (TBM) is the most common form of CNS TB, though other forms occur, often in conjunction with TBM, including intracranial tuberculomas, tuberculous brain abscesses, and spinal tubercular arachnoiditis. CNS TB often presents with nonspecific clinical features that mimic symptoms of other neurological conditions, often making diagnosis difficult...
April 2018: Seminars in Neurology
https://www.readbyqxmd.com/read/29790681/multiple-primary-lung-cancer-a-literature-review
#2
REVIEW
Anna M Romaszko, Anna Doboszyńska
Nowadays, lung cancer is a leading cause of death in both men and women worldwide. There is no clear explanation for its mortality rate. However, it is already known that genetic and environmental factors as well as oncological treatment are involved. As the incidence of lung cancer soars, the number of patients diagnosed with multiple primary lung cancers (MPLC) is also rising. While differentiating between MPLC and intrapulmonary metastasis of lung cancer is important for treatment strategy and prognosis, it is also quite complicated, particularly in the cases with similar histologies...
April 19, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29789958/prosthetic-joint-infections-an-update
#3
REVIEW
C L Abad, A Haleem
PURPOSE OF REVIEW: Prosthetic joint infection (PJI) is a rare but serious complication that is frequently misdiagnosed. We aimed to highlight the nuances of PJI diagnosis and antimicrobial therapies and provide clarity in key areas of management. RECENT FINDINGS: Current research in PJI centers on a potential role for diagnostic biomarkers, molecular techniques, and implant sonication to reduce culture-negativity rates. The optimal duration of antimicrobial therapy remains controversial...
May 22, 2018: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/29788324/the-application-of-coi-gene-for-species-identification-of-forensically-important-muscid-flies-diptera-muscidae
#4
Lipin Ren, Wei Chen, Yanjie Shang, Fanming Meng, Lagabaiyila Zha, Yong Wang, Yadong Guo
Muscid Flies (Diptera: Muscidae) are of great forensic importance due to their wide distribution, ubiquitous and synanthropic nature. They are frequently neglected as they tend to arrive at the corpses later than the flesh flies and blow flies. Moreover, the lack of species-level identification also hinders investigation of medicolegal purposes. To overcome the difficulty of morphological identification, molecular method has gained relevance. Cytochrome c oxidase subunit I (COI) gene has been widely utilized...
May 17, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29788237/diagnostic-yield-of-next-generation-sequencing-in-very-early-onset-inflammatory-bowel-diseases-a-multicenter-study
#5
Fabienne Charbit-Henrion, Marianna Parlato, Sylvain Hanein, Rémi Duclaux-Loras, Jan Nowak, Bernadette Begue, Sabine Rakotobe, Julie Bruneau, Cécile Fourrage, Olivier Alibeu, Frédéric Rieux-Laucat, Eva Lévy, Marie-Claude Stolzenberg, Fabienne Mazerolles, Sylvain Latour, Christelle Lenoir, Alain Fischer, Capucine Picard, Marina Aloi, Jorge Amil Dias, Mongi Ben Hariz, Anne Bourrier, Christian Breuer, Anne Breton, Jiri Bronski, Stephan Buderus, Mara Cananzi, Stéphanie Coopman, Clara Crémilleux, Alain Dabadie, Clémentine Dumant-Forest, Odul Egritas Gurkan, Alexandre Fabre, Aude Fischer, Marta German Diaz, Yago Gonzalez-Lama, Olivier Goulet, Graziella Guariso, Neslihan Gurcan, Matjaz Homan, Jean-Pierre Hugot, Eric Jeziorski, Evi Karanika, Alain Lachaux, Peter Lewindon, Rosa Lima, Fernando Magro, Janos Major, Georgia Malamut, Emmanuel Mas, Istvan Mattyus, Luisa M Mearin, Jan Melek, Victor Manuel Navas-Lopez, Anders Paerregaard, Cecile Pelatan, Bénédicte Pigneur, Isabel Pinto Pais, Julie Rebeuh, Claudio Romano, Nadia Siala, Caterina Strisciuglio, Michela Tempia-Caliera, Patrick Tounian, Dan Turner, Vaidotas Urbonas, Stéphanie Willot, Frank M Ruemmele, Nadine Cerf-Bensussan
Background and Aims: An expanding number of monogenic defects have been identified as causative of severe forms of very early-onset inflammatory bowel diseases (VEO-IBD). The present study aimed at defining how next-generation sequencing (NGS) methods can be used to improve identification of known molecular diagnosis and adapt treatment. Methods: 207 children were recruited in 45 Paediatric centres through an international collaborative network (ESPGHAN GENIUS working group) with a clinical presentation of severe VEO-IBD (n=185) or an anamnesis suggestive of a monogenic disorder (n=22)...
May 18, 2018: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/29787889/diagnosis-of-bloodstream-infections-from-positive-blood-cultures-and-directly-from-blood-samples-recent-developments-in-molecular-approaches
#6
REVIEW
Nilay Peker, Natacha Couto, Bhanu Sinha, John W Rossen
BACKGROUND: Bloodstream infections are a major cause of death with increasing incidence and severity. Blood cultures are still the gold standard for microbiological diagnosis, but are rather slow. Molecular methods can be used as add-on complementary assays. They can be useful to speed up microbial identification and to predict antimicrobial susceptibility, applied to direct blood samples or positive blood cultures. AIM: To review recent developments in molecular based diagnostic platforms used for the identification of bloodstream infections, with a focus on assays performed directly on blood samples and positive blood cultures...
May 19, 2018: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29785618/a-quick-and-simple-benchtop-vortex-egg-disruption-approach-for-the-molecular-diagnosis-of-fasciola-hepatica-from-ruminant-faecal-samples
#7
Nichola Eliza Davies Calvani, Tina Cheng, Christine Green, Patrick Hughes, Emily Kwan, Elizabeth Maher, Russell David Bush, Jan Šlapeta
Commonly employed diagnostic methods for Fasciola spp., such as a traditional sedimentation and faecal egg count, or a commercially available coprological ELISA, have limitations in their sensitivity or ability to differentiate species. A reliable DNA isolation method coupled with real-time PCR addresses these issues by providing highly sensitive and quantitative molecular diagnosis from faecal samples. The current study evaluated a standard benchtop vortex for F. hepatica egg disruption in sheep and cattle faecal samples and determined the minimum faecal egg load required for a positive result from un-concentrated (raw) faecal samples...
May 22, 2018: Parasitology Research
https://www.readbyqxmd.com/read/29785215/mycobacteriosis-and-tuberculosis-laboratory-diagnosis
#8
REVIEW
Davood Azadi, Tahereh Motallebirad, Kazem Ghaffari, Hasan Shojaei
Background: Tuberculosis is one of the most important infectious diseases that has claimed its victims throughout much of known human history. With Koch's discovery of the tubercle bacillus as the etiologic agent of the disease, his sanitary and hygienic measures, which were based on his discovery and the development of a vaccine against tuberculosis by Albert Calmette and Camille Guérin in 1921, an attenuated Mycobacterium bovis strain, bacilli Calmette-Guérin (BCG), and the discovery of the first antibiotic against tuberculosis, streptomycin by Selman Waksman in 1943, soon led to the opinion that appropriate control measures had become available for tuberculosis and it had been assumed that the disease could ultimately be eradicated...
2018: Open Microbiology Journal
https://www.readbyqxmd.com/read/29784358/short-probe-based-duplex-specific-nuclease-signal-amplification-strategy-enables-imaging-of-endogenous-micrornas-in-living-cells-with-ultrahigh-specificity
#9
Yingjun Ma, Jun Chen, Danping Chen, Yuzhi Xu, Li Zhang, Zong Dai, Xiaoyong Zou
Specific nucleic acids amplification at a constant and mild temperature is important for imaging assay of endogenous microRNAs (miRNAs) in living cells. Duplex-specific nuclease (DSN) is attractive in one-step isothermal assay of miRNA; however, its intrinsic limitations of low amplification specificity and high reaction temperature greatly restrict the application scope. Herein, we present a short-probe-based DSN signal amplification (spDSNSA) strategy enabling analysis of miRNAs at body temperature with significantly high specificity...
August 15, 2018: Talanta
https://www.readbyqxmd.com/read/29783260/-methods-of-diagnosis-of-non-specific-and-specific-lymphideniates-of-the-jaw-facial-part-in-children-literature-review
#10
Pavlo I Tkachenko, Yurii B Lobach, Sergii O Bilokon, Vitalina O Dobroskok, Yuliia V Popelo
OBJECTIVE: Introduction: Insufficient basic knowledge on the mechanisms of the multifactoral etiology and pathogenesis of various forms of maxillofacial lymphadenitis of odontogenic and non-odontogenic nature in children causes difficulties in making differential diagnosis. The algorithm of their examination involves a large number of methods, each of which has its own advantages and disadvantages with variable informativeness, depending on the particular situation. The aim: The paper is aimed atfamiliarization of broad medical public with informativeness of diagnostic measures in the nonspecific and specific affection of lymph nodes of the maxillofacial area in children...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29783081/recent-technological-advancements-in-tuberculosis-diagnostics-a-review
#11
REVIEW
Shagun Gupta, Vipan Kakkar
Early diagnosis and on-time effective treatment are indispensable for Tuberculosis (TB) control - a life threatening infectious communicable disease. The conventional techniques for diagnosing TB normally take two to three weeks. This delay in diagnosis and further increase in detection complexity due to the emerging risks of XDR-TB (Extensively drug Resistant-TB) and MDR-TB (Multidrug Resistant-TB) are evoking interest of researchers in the field of developing rapid TB detection techniques such as biosensing and other point-of-care (POC) techniques...
May 11, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29779608/current-use-of-molecular-profiling-for-indeterminate-thyroid-nodules
#12
Irene López Rojo, Adela Gómez Valdazo, Joaquín Gómez Ramirez
Even though cytology remains the gold standard to assess the nature of thyroid nodules, up to 30% of the results are indeterminate (BethesdaIII and IV). In these cases, current guidelines recommend performing diagnostic surgery, which proves malignancy in only 15-30% of cases. A more precise method is needed to avoid unnecessary surgeries, surgical complications and costs in the process of diagnosing indeterminate nodules. Complementary use of molecular profiling tests seems to help in this complex scenario...
May 17, 2018: Cirugía Española
https://www.readbyqxmd.com/read/29778881/polymerase-chain-reaction-pcr-based-methods-promising-molecular-tools-in-dentistry
#13
REVIEW
Shahriar Shahi, Sepideh Zununi Vahed, Nazanin Fathi, Simin Sharifi
Polymerase chain reaction (PCR) has become a popular diagnosis and research technique in dentistry. Several studies show that its high sensitivity and specificity allow it as a precise, efficient, and rapid method for detection, identification, and quantification of microorganism. Several genetic polymorphisms can be determined along with detection of immune and inflammatory markers, therefore providing the more accurate perception into the mechanisms underlying the dental and periodontal disease. This review paper discusses the application of PCR as a diagnostic technique in periodontology, endodontic infections, implant-related, and peri-implantitis infection, immune and inflammatory markers identification and genetic polymorphism as well as application of next generation sequencing and gene microarray technology in dentistry mentioned...
May 17, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29777376/comprehensive-molecular-diagnosis-of-epstein-barr-virus-associated-lymphoproliferative-diseases-using-next-generation-sequencing
#14
Shintaro Ono, Manabu Nakayama, Hirokazu Kanegane, Akihiro Hoshino, Saeko Shimodera, Hirofumi Shibata, Hisanori Fujino, Takahiro Fujino, Yuta Yunomae, Tsubasa Okano, Motoi Yamashita, Takahiro Yasumi, Kazushi Izawa, Masatoshi Takagi, Kohsuke Imai, Kejian Zhang, Rebecca Marsh, Capucine Picard, Sylvain Latour, Osamu Ohara, Tomohiro Morio
Epstein-Barr virus (EBV) is associated with several life-threatening diseases, such as lymphoproliferative disease (LPD), particularly in immunocompromised hosts. Some categories of primary immunodeficiency diseases (PIDs) including X-linked lymphoproliferative syndrome (XLP), are characterized by susceptibility and vulnerability to EBV infection. The number of genetically defined PIDs is rapidly increasing, and clinical genetic testing plays an important role in establishing a definitive diagnosis. Whole-exome sequencing is performed for diagnosing rare genetic diseases, but is both expensive and time-consuming...
May 18, 2018: International Journal of Hematology
https://www.readbyqxmd.com/read/29776538/rapid-detection-of-calr-type-1-and-type-2-mutations-using-pna-lna-clamping-loop-mediated-isothermal-amplification-on-a-cd-like-microfluidic-chip
#15
Guojun Cao, Jilie Kong, Zhifang Xing, Yigui Tang, Xinju Zhang, Xiao Xu, Zhihua Kang, Xueen Fang, Ming Guan
Bleeding and thrombosis represent common complications in myeloproliferative neoplasms (MPN) and significantly contribute to morbidity and mortality. Molecular markers, including CALR mutations, were considered not only as diagnostic markers, but also as risk factors for bleeding and thrombosis associated with MPN, especially for patients in remote primary hospitals. We sought to develop an easy-to-use assay for the rapid detection of CALR type 1 (CALR-1) and type 2 (CALR-2) mutations in Philadelphia chromosome-negative MPN patients...
September 18, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29776426/detection-of-zika-virus-infection-among-asymptomatic-pregnant-women-in-the-north-of-peru
#16
Claudia Weilg, Lucinda Troyes, Zoila Villegas, Wilmer Silva-Caso, Fernando Mazulis, Ammy Febres, Mario Troyes, Miguel Angel Aguilar-Luis, Juana Del Valle-Mendoza
OBJECTIVE: To report an outbreak of ZIKV infection among asymptomatic pregnant women during 2016 in the city of Jaen, Cajamarca. RESULTS: Zika virus RNA was detected in 3.2% (n = 36) of cases by RT-PCR. The mean age of patients positive for ZIKV infection was 29.6 years. 7 patients (19.4%) infected with ZIKV were in their first-trimester of gestation, 13 (36.1%) were in their second-trimester, and 16 (44%) were in their third-trimester. All of the infected pregnant women were asymptomatic...
May 18, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29776392/molecular-identification-of-tick-borne-pathogens-in-asymptomatic-individuals-with-human-immunodeficiency-virus-type-1-hiv-1-infection-a-retrospective-study
#17
Renata Welc-Falęciak, Justyna D Kowalska, Małgorzata Bednarska, Magdalena Szatan, Agnieszka Pawełczyk
BACKGROUND: The studies on the occurrence and diversity of tick-borne infections in HIV-infected individuals have been few, and the subject has been relatively neglected when compared with other common infections associated with HIV. In HIV-positive patients in whom a serological diagnostics is complicated due to reduced positive predictive value, a method where the microorganism is detected directly is of great value. Therefore, we performed a molecular study to ascertain the prevalence and incidence of tick-borne infections in HIV-infected persons in Poland, an endemic area for Ixodes ricinus ticks...
May 18, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29774539/clinical-and-molecular-characterization-of-indian-patients-with-fructose-1-6-bisphosphatase-deficiency-identification-of-a-frequent-variant-e281k
#18
Pratibha Bhai, Sunita Bijarnia-Mahay, Ratna D Puri, Renu Saxena, Deepti Gupta, Udhaya Kotecha, Anil Sachdev, Dhiren Gupta, Vyomesh Vyas, Divya Agarwal, Vivek Jain, Rajeev K Bansal, Tapisha G Kumar, Ishwar Chander Verma
Fructose-1, 6-bisphosphatase deficiency is an autosomal recessive disorder of gluconeogenesis caused by genetic defect in the FBP1 gene. It is characterized by episodic, often life-threatening metabolic acidosis, liver dysfunction, and hyperlactatemia. Without a high index of suspicion, it may remain undiagnosed with devastating consequences. Accurate diagnosis can be achieved either by enzyme assay or gene studies. Enzyme assay requires a liver biopsy and is tedious, invasive, expensive, and not easily available...
May 18, 2018: Annals of Human Genetics
https://www.readbyqxmd.com/read/29774071/molecular-detection-and-analysis-of-exosomes-using-surface-enhanced-raman-scattering-gold-nanorods-and-a-miniaturized-device
#19
Elyahb Allie Kwizera, Ryan O'Connor, Vojtech Vinduska, Melody Williams, Elizabeth R Butch, Scott E Snyder, Xiang Chen, Xiaohua Huang
Exosomes are a potential source of cancer biomarkers. Probing tumor-derived exosomes can offer a potential non-invasive way to diagnose cancer, assess cancer progression, and monitor treatment responses. Novel molecular methods would facilitate exosome analysis and accelerate basic and clinical exosome research. Methods: A standard gold-coated glass microscopy slide was used to develop a miniaturized affinity-based device to capture exosomes in a target-specific manner with the assistance of low-cost 3-D printing technology...
2018: Theranostics
https://www.readbyqxmd.com/read/29773135/discrimination-molecular-characterisation-and-phylogenetic-comparison-of-porcine-eimeria-spp-in-india
#20
Devina Sharma, Nirbhay K Singh, Harkirat Singh, Anja Joachim, Shitanshu S Rath, Damer P Blake
Infections with Eimeria spp. are common in pigs worldwide, occasionally affecting animals clinically after weaning or during the fattening period when diarrhoea and weight loss can be observed upon infection with the more pathogenic species. Molecular characterization of pathogens is valuable to accurately delimit species and development novel diagnostics, although sequences which define Eimeria species that infect pigs are scarce. Only three of the eight common species are currently represented in GenBank...
May 15, 2018: Veterinary Parasitology
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