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https://www.readbyqxmd.com/read/27910903/prostate-cancer-patients-negative-biopsy-controls-discrimination-by-untargeted-metabolomics-analysis-of-urine-by-lc-qtof-upstream-information-on-other-omics
#1
M A Fernández-Peralbo, E Gómez-Gómez, M Calderón-Santiago, J Carrasco-Valiente, J Ruiz-García, M J Requena-Tapia, M D Luque de Castro, F Priego-Capote
The existing clinical biomarkers for prostate cancer (PCa) diagnosis are far from ideal (e.g., the prostate specific antigen (PSA) serum level suffers from lack of specificity, providing frequent false positives leading to over-diagnosis). A key step in the search for minimum invasive tests to complement or replace PSA should be supported on the changes experienced by the biochemical pathways in PCa patients as compared to negative biopsy control individuals. In this research a comprehensive global analysis by LC-QTOF was applied to urine from 62 patients with a clinically significant PCa and 42 healthy individuals, both groups confirmed by biopsy...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27909687/morphogenesis-of-human-embryonic-stem-cells-into-mature-neurons-under-in-vitro-culture-conditions
#2
Geeta Shroff
AIM: To describe the morphogenesis of different neuronal cells from the human embryonic stem cell (hESC) line, SCT-N, under in vitro culture conditions. METHODS: The directed neuronal cell line was produced from a single, spare, pre-implantation stage fertilized ovum that was obtained during a natural in vitro fertilization process. The hESCs were cultured and maintained as per our proprietary in-house technology in a Good Manufacturing Practice, Good Laboratory Practice and Good Tissue Practice compliant laboratory...
November 20, 2016: World Journal of Experimental Medicine
https://www.readbyqxmd.com/read/27907090/forkhead-box-c1-regulates-human-primary-keratinocyte-terminal-differentiation
#3
Lianghua Bin, Liehua Deng, Hengwen Yang, Leqing Zhu, Xiao Wang, Michael G Edwards, Brittany Richers, Donald Y M Leung
The epidermis serves as a critical protective barrier between the internal and external environment of the human body. Its remarkable barrier function is established through the keratinocyte (KC) terminal differentiation program. The transcription factors specifically regulating terminal differentiation remain largely unknown. Using a RNA-sequencing (RNA-seq) profiling approach, we found that forkhead box c 1 (FOXC1) was significantly up-regulated in human normal primary KC during the course of differentiation...
2016: PloS One
https://www.readbyqxmd.com/read/27906881/stem-cells-and-clinical-practice-new-advances-and-challenges-at-the-time-of-emerging-problems-with-induced-pluripotent-stem-cell-therapies
#4
Mariusz Z Ratajczak, Kamila Bujko, Wojciech Wojakowski
Humans, like other species that reproduce sexually, originate from a fertilized oocyte (zygote), which is a totipotent stem cell giving rise to an adult organism. During the process of embryogenesis, stem cells at different levels of the developmental hierarchy establish all 3 germ layers and give rise to tissue‑committed stem cells, which are responsible for rejuvenation of a given tissue or organ. The robustness of the stem cell compartment is one of the major factors that directly impact life quality as well as lifespan...
November 10, 2016: Polskie Archiwum Medycyny Wewnętrznej
https://www.readbyqxmd.com/read/27906172/inflammatory-macrophages-can-transdifferentiate-into-myofibroblasts-during-renal-fibrosis
#5
Xiao-Ming Meng, Shuang Wang, Xiao-Ru Huang, Chen Yang, Jun Xiao, Yang Zhang, Ka-Fai To, David J Nikolic-Paterson, Hui-Yao Lan
Myofibroblasts play a central role in renal fibrosis although the origin of these cells remains controversial. We recently reported that bone marrow-derived macrophages can give rise to myofibroblasts through macrophage to myofibroblast transition (MMT). However, several important issues remain to be addressed, including whether MMT occurs in human kidney disease and verification of the MMT process through lineage tracing. Biopsies from a cohort of 58 patients with various forms of kidney disease were examined for MMT cells that co-express macrophage (CD68) and myofibroblast (α-smooth muscle actin, α-SMA) markers...
December 1, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27906098/direct-reprogramming-of-urine-derived-cells-with-inducible-myod-for-modeling-human-muscle-disease
#6
Ellis Y Kim, Patrick Page, Lisa M Dellefave-Castillo, Elizabeth M McNally, Eugene J Wyatt
BACKGROUND: Cellular models of muscle disease are taking on increasing importance with the large number of genes and mutations implicated in causing myopathies and the concomitant need to test personalized therapies. Developing cell models relies on having an easily obtained source of cells, and if the cells are not derived from muscle itself, a robust reprogramming process is needed. Fibroblasts are a human cell source that works well for the generation of induced pluripotent stem cells, which can then be differentiated into cardiomyocyte lineages, and with less efficiency, skeletal muscle-like lineages...
September 15, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27905899/a-case-of-extragastrointestinal-stromal-tumor-complicated-by-severe-hypoglycemia-a-unique-presentation-of-a-rare-tumor
#7
Zeb Saeed, Solaema Taleb, Carmella Evans-Molina
BACKGROUND: Non-Islet Cell Tumor Hypoglycemia (NICTH) is a rare paraneoplastic cause of hypoglycemia arising from excess tumor production of insulin-like growth factor. The objective of this report is to describe an unusual case of Extragastrointestinal Stromal Tumor (EGIST) associated NICTH. CASE PRESENTATION: A 64 year-old African female was brought to the emergency room with a 1-month history of recurrent syncope, weight loss, and abdominal bloating. Serum blood glucose was discovered to 39 mg/dL, when insulin, proinsulin, and C-peptide were suppressed...
December 1, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27905065/spatial-measures-of-genetic-heterogeneity-during-carcinogenesis
#8
K Storey, M D Ryser, K Leder, J Foo
In this work we explore the temporal dynamics of spatial heterogeneity during the process of tumorigenesis from healthy tissue. We utilize a spatial stochastic model of mutation accumulation and clonal expansion in a structured tissue to describe this process. Under a two-step tumorigenesis model, we first derive estimates of a non-spatial measure of diversity: Simpson's Index, which is the probability that two individuals sampled at random from the population are identical, in the premalignant population. We next analyze two new measures of spatial population heterogeneity...
November 30, 2016: Bulletin of Mathematical Biology
https://www.readbyqxmd.com/read/27893466/cd30-expression-is-rare-in-myeloid-leukemia-cutis-a-study-of-55-cases-and-implications-for-routine-diagnostic-algorithms
#9
Olakunle Ogunrinade, David Terrano, April Chiu, Melissa Pulitzer
Expression of CD30 in blastoid cutaneous infiltrates typically signifies a CD30 lymphoproliferative disorder, often requiring minimal immunohistochemical workup, if clinically consonant. However, myeloid and other hematologic malignancies often express CD30. We retrospectively examined the prevalence of CD30 expression in 41 patients (median age 59) and 55 biopsies with the diagnosis of leukemia cutis (LC) to determine whether an extensive immunohistochemical workup is warranted in all large, round cell CD30 cutaneous infiltrates...
November 22, 2016: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27891686/implementation-of-a-real-time-reference-and-calibration-grid-platform-for-improved-screening-mapping-in-pap-test-slides
#10
Evangelos Tsiambas, Christos Riziotis
Cervical cancer screening based on the Papanicolaou (Pap) test is a widely applied but not always efficient practice for detecting Human Papillomavirus (HPV) mediated lesions, partially due to a non-systematic and inadequate screening process. Our aim was to introduce an inexpensive easy-to-use direct screening platform for improved detection of abnormal cells indicative of underlying cervical neoplasia as well as persisting HPV infection. By employing a novel, efficient technique of laser-based micromachining, we achieved the fabrication of spatial grids on commercially available coverslips allowing visual segmentation of the slide for efficient screening...
November 27, 2016: Pathology International
https://www.readbyqxmd.com/read/27891486/eosinophilic-granuloma-presenting-as-palatal-swelling
#11
B Balaji Babu, Lakshmi Kavitha Nadendla, Ginjupally Uday, Pooja Madki
Swellings involving palate can be challenging to diagnose for the clinician as they have wide range of origin which can result from developmental, inflammatory, reactive or a neoplastic process. The clinical presentation of these swellings is similar and difficult to differentiate from each other. So it is important to take proper history from the patient and subject the patient to appropriate laboratory and radiographic investigations and finally biopsy is mandatory for accurate diagnosis. Thus, this article highlights on various common palatal swellings, their clinical presentation, and differential diagnosis helpful for proper diagnosis of swellings associated with palate...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27890680/the-putative-role-of-maldi-msi-in-the-study-of-membranous-nephropathy
#12
Andrew Smith, Vincenzo L'Imperio, Elena Ajello, Franco Ferrario, Niccolò Mosele, Martina Stella, Manuel Galli, Clizia Chinello, Federico Pieruzzi, Goce Spasovski, Fabio Pagni, Fulvio Magni
Membranous Nephropathy (MN) is an immunocomplex mediated renal disease that represents the leading cause of nephrotic syndrome in adults and is one of the most frequent glomerulopathies worldwide. This glomerular disease can manifest as primary (idiopathic) or secondary and this distinction is crucial when choosing the most appropriate management of patients. In secondary cases, the best strategy consists in treating the underlying disease whereas in primary forms, the possible identification of confirmatory markers of the idiopathic etiology underlining the process is requested by clinicians...
November 23, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27890679/evaluation-of-non-supervised-maldi-mass-spectrometry-imaging-combined-with-microproteomics-for-glioma-grade-iii-classification
#13
Emilie Le Rhun, Marie Duhamel, Maxence Wisztorski, Jean-Pascal Gimeno, Fahed Zairi, Fabienne Escande, Nicolas Reyns, Firas Kobeissy, Claude-Alain Maurage, Michel Salzet, Isabelle Fournier
An integrated diagnosis using molecular features is recommended in the 2016 World Health Organization (WHO) classification. Our aim was to explore non-targeted molecular classification using MALDI mass spectrometry imaging (MALDI MSI) associated to microproteomics in order to classify anaplastic glioma by integration of clinical data. We used fresh-frozen tissue sections to perform MALDI MSI of proteins based on their digestion peptides after in-situ trypsin digestion of the tissue sections and matrix deposition by micro-spraying...
November 23, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27890493/higher-number-of-transrectal-ultrasound-guided-prostate-biopsy-cores-is-associated-with-higher-blood-loss-and-perioperative-complications-in-robot-assisted-radical-prostatectomy
#14
A Carneiro, A Sivaraman, R Sanchez-Salas, I Nunes-Silva, M Baghdadi, V Srougi, E di Trapani, F Uriburu Pizzaro, S Doizi, E Barret, F Rozet, M Galiano, X Cathelineau
INTRODUCTION: The local inflammatory process after prostate biopsies can have a negative impact on functional outcomes of radical prostatectomy. There is no evidence in literature demonstrating its impact on radical prostatectomy. OBJECTIVES: To evaluate the impact of the number of TRUS core biopsies in the surgical morbidity and rate of positive margin on robot assisted radical prostatectomy (RARP). MATERIAL AND METHODS: A prospectively maintained database of 2,054 RARPs in a single institution...
November 24, 2016: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/27889980/-the-importance-of-free-nucleic-acids-in-the-non-invasive-diagnostics
#15
Bálint Nagy, Zoltán Csanádi, Róbert Póka
There is a great interest to determine the physiological role of "free" nucleic acids, and to use them in the clinical diagnostics. These could be DNA, mRNA, microRNA and long non-coding RNA molecules, they are in the body fluids, like serum, tear, saliva, etc. Their exact role in the normal and pathological physiological processes is still in the focus of the research, while their use in the diagnostics is becoming more and more important. The use of "free" DNA in the non-invasive prenatal diagnosis is the first clinical application of the new generation sequencers, these methods are able to reach 99...
November 2016: Orvosi Hetilap
https://www.readbyqxmd.com/read/27885686/repeated-oral-administration-of-a-cathepsin-k-inhibitor-significantly-suppresses-bone-resorption-in-exercising-horses-with-evidence-of-increased-bone-formation-and-maintained-bone-turnover
#16
H Hussein, J Dulin, L Smanik, W T Drost, D Russell, M Wellman, A Bertone
Our investigations evaluated the effect of VEL-0230, a highly specific irreversible inhibitor of cathepsin K (CatK). The objectives of our study were to determine whether repeated dosing of a CatK inhibitor (CatKI) produced a desired inhibition of the bone resorption biomarker (CTX-1), and document the effect of repeated dosing on bone homeostasis, structure, and dynamics of bone resorption and formation in horses. Twelve young exercising horses were randomized in a prospective, controlled clinical trial and received 4 weekly doses of a CatKI or vehicle...
November 24, 2016: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/27885353/a-comparison-of-the-effects-of-alpha-and-medical-grade-honey-ointments-on-cutaneous-wound-healing-in-rats
#17
Shahram Paydar, Majid Akrami, Amirreza Dehghanian, Roshanak Alavi Moghadam, Mohsen Heidarpour, Amir Bahari Khoob, Behnam Dalfardi
Introduction. This study compared the healing efficacy and possible adverse effects of topical Alpha and medical-grade honey ointments on cutaneous wounds in rats. Methods. To conduct the study, 22 male Sprague-Dawley rats were randomly allocated into two equal groups: (1) rats with Alpha ointment applied to the wound surface area and (2) rats with medical-grade honey ointment applied to their wounds. The ointments were applied daily during the 21-day study period. Wound contraction was examined photographically with images taken on days 0, 7, and 21 after wounding...
2016: Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27884882/lymphomatosis-cerebri-diagnostic-challenges-and-review-of-the-literature
#18
Paul J Lee, Idanis Berrios, Carolina Ionete, Thomas Smith
Lymphomatosis cerebri (LC) is a rare variant of a primary central nervous system non-Hodgkin's lymphoma (PCNSL) characterised by diffuse infiltration of tumour cells throughout the brain parenchyma. We present a 68-year-old immunocompetent woman with headaches, dizziness, blurred vision, localised right leg weakness and rapidly progressive dementia. A brain MRI demonstrated diffuse T2 hyperintense white matter lesions that did not enhance with contrast. The clinical differential diagnosis of these lesions included metastatic disease, infectious or inflammatory process such as sarcoidosis, lymphoma, demyelinating disease and less likely vascular aetiology, such as vasculitis or ischaemic stroke...
November 24, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27884600/steaps-comprise-a-novel-inflammatory-nexus-in-pustular-skin-disorders
#19
Yun Liang, Xianying Xing, Maria A Beamer, William R Swindell, Mrinal K Sarkar, Liza Wolterink Roberts, John J Voorhees, J Michelle Kahlenberg, Paul W Harms, Andrew Johnston, Johann E Gudjonsson
BACKGROUND: Pustular skin disorders are a category of difficult-to-treat and potentially life threatening conditions that involve the appearance of neutrophil rich pustules. The molecular basis of most pustular skin conditions has remained unknown. OBJECTIVE: We sought to investigate the molecular basis of three pustular skin disorders, generalized pustular psoriasis (GPP), palmoplantar pustulosis (PPP), and acute generalized exanthematous pustulosis (AGEP). METHODS: Microarray analyses were performed to profile genome-wide gene expression of skin biopsies obtained from GPP, PPP, AGEP patients and normal controls...
November 21, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27884253/the-quest-for-new-approaches-in%C3%A2-myocarditis-and-inflammatory%C3%A2-cardiomyopathy
#20
REVIEW
Stephane Heymans, Urs Eriksson, Jukka Lehtonen, Leslie T Cooper
Myocarditis is a diverse group of heart-specific immune processes classified by clinical and histopathological manifestations. Up to 40% of dilated cardiomyopathy is associated with inflammation or viral infection. Recent experimental studies revealed complex regulatory roles for several microribonucleic acids and T-cell and macrophage subtypes. Although the prevalence of myocarditis remained stable between 1990 and 2013 at about 22 per 100,000 people, overall mortality from cardiomyopathy and myocarditis has decreased since 2005...
November 29, 2016: Journal of the American College of Cardiology
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