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https://www.readbyqxmd.com/read/28335384/localization-and-tracking-of-implantable-biomedical-sensors
#1
REVIEW
Ilknur Umay, Barış Fidan, Billur Barshan
Implantable sensor systems are effective tools for biomedical diagnosis, visualization and treatment of various health conditions, attracting the interest of researchers, as well as healthcare practitioners. These systems efficiently and conveniently provide essential data of the body part being diagnosed, such as gastrointestinal (temperature, pH, pressure) parameter values, blood glucose and pressure levels and electrocardiogram data. Such data are first transmitted from the implantable sensor units to an external receiver node or network and then to a central monitoring and control (computer) unit for analysis, diagnosis and/or treatment...
March 13, 2017: Sensors
https://www.readbyqxmd.com/read/28334911/mertk-rs4374383-variant-predicts-incident-nonalcoholic-fatty-liver-disease-and-diabetes-role-of-mononuclear-cell-activation-and-adipokine-response-to-dietary-fat
#2
Giovanni Musso, Maurizio Cassader, Franco De Michieli, Elena Paschetta, Silvia Pinach, Francesca Saba, Daria Bongiovanni, Luciana Framarin, Mara Berrutti, Nicola Leone, Stefania Corvisieri, Renato Parente, Federica Molinaro, Antonio Sircana, Bo Simona, Roberto Gambino
The loss-of-function rs4374383 G>A variant in Myeloid-epithelial-reproductive Tyrosine Kinase (MERTK) gene has been linked to hepatic fibrosis in chronic liver diseases. MERTK is expressed by immune and non-immune cells involved in inflammation, metabolism and vascular homeostasis. We assessed the impact of MERTK rs4374383 G>A variant on nonalcoholic fatty liver disease (NAFLD) incidence and severity and on glucose and lipid metabolism.We followed-up 305 healthy nonobese nondiabetic, metabolic syndrome-free insulin sensitive participants in a population-based study, characterized for MERTK G>A polymorphism, adipokine profile and inflammatory markers...
March 8, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334518/percutaneous-biopsy-of-the-renal-mass-fna-or-core-needle-biopsy
#3
Chi-Shun Yang, Euna Choi, Muhammad T Idrees, Shaoxiong Chen, Howard H Wu
BACKGROUND: In recent years, there have been increasing indications for percutaneous renal biopsy. Fine-needle aspiration (FNA), with or without core needle biopsy (CB), has been used increasingly in the management of renal tumors at the study institution. METHODS: A computerized search of laboratory records was conducted to retrieve FNA cases of renal masses as well as the correlating CB and/or nephrectomy specimens. The cases spanned a period of 10 years (2006-2015)...
March 23, 2017: Cancer
https://www.readbyqxmd.com/read/28334509/disturbed-testicular-expression-of-the-estrogen-metabolizing-enzymes-cyp1a1-and-comt-in-infertile-men-with-primary-spermatogenic-failure-possible-negative-implications-on-sertoli-cells
#4
A Parada-Bustamante, C Molina, C Valencia, M Flórez, M C Lardone, F Argandoña, A Piottante, M Ebensperguer, P A Orihuela, A Castro
Estradiol (E2 ) is normally metabolized to hydroxyestradiols and methoxyestradiols by CYP1A1, CYP1B1 and COMT. However, an altered production of these metabolites by a disturbed expression of these enzymes is associated with reproductive and non-reproductive pathologies. In vitro studies suggest that increased hydroxyestradiols and methoxyestradiols intratesticular generation is related to male infertility, but no studies have explored whether infertile men have a disturbed testicular expression of the enzymes that generate these E2 metabolites...
March 23, 2017: Andrology
https://www.readbyqxmd.com/read/28334423/are-there-patients-with-t1-to-t2-lymph-node-negative-breast-cancer-who-are-high-risk-for-locoregional-disease-recurrence
#5
Anita Mamtani, Sujata Patil, Michelle M Stempel, Monica Morrow
BACKGROUND: Indications for postmastectomy radiotherapy (PMRT) in patients with T1 to T2, lymph node-negative (N0) breast cancer with "high-risk" features are controversial. The European Organization for Research and Treatment of Cancer (EORTC) 22922 and National Cancer Institute of Canada Clinical Trials Group MA20 trials reporting improved 10-year disease-free survival with lymph node irradiation included patients with high-risk N0 disease, but, to the authors' knowledge, benefits in patients receiving modern systemic therapy are uncertain...
March 23, 2017: Cancer
https://www.readbyqxmd.com/read/28334051/dissecting-the-relationships-of-igg-subclasses-and-complements-in-membranous-lupus-nephritis-and-idiopathic-membranous-nephropathy
#6
Woong Na, Kijong Yi, Young Soo Song, Moon Hyang Park
Membranous lupus nephritis (MLN) and idiopathic membranous nephropathy (IMN) are kidney diseases with similar morphology, but distinct etiologies, both producing glomeruli with immune deposits. Immunoglobulins and complements, the main components of the deposits, can be detected by immunofluorescence (IF) microscopy. Previous researches characterized the immune deposits only individually, but not the interactions between them. To study these relationships we analyzed an IF profile of IgG subclasses and complements (IgG1, IgG2, IgG3, IgG4, C3, C1q, and C4) in 53 and 95 cases of biopsy-confirmed MLNs and IMNs, respectively, mainly using information theory and Bayesian networks...
2017: PloS One
https://www.readbyqxmd.com/read/28333966/associations-of-human-papillomavirus-hpv-genotypes-with-high-grade-cervical-neoplasia-cin2-in-a-cohort-of-women-living-with-hiv-in-burkina-faso-and-south-africa
#7
Helen A Kelly, Jean Ngou, Admire Chikandiwa, Bernard Sawadogo, Clare Gilham, Tanvier Omar, Olga Lompo, Sylviane Doutre, Nicolas Meda, Helen A Weiss, Sinead Delany-Moretlwe, Michel Segondy, Philippe Mayaud
OBJECTIVE: To describe associations of high-risk human papillomavirus (HR-HPV) with high-grade cervical intraepithelial neoplasia (CIN2+) in women living with HIV (WLHIV) in Burkina Faso (BF) and South Africa (SA). METHODS: Prospective cohort of WLHIV attending HIV outpatient clinics and treatment centres. Recruitment was stratified by ART status. Cervical HPV genotyping using INNO-LiPA and histological assessment of 4-quadrant cervical biopsies at enrolment and 16 months later...
2017: PloS One
https://www.readbyqxmd.com/read/28333917/a-clinical-utility-study-of-exome-sequencing-versus-conventional-genetic-testing-in-pediatric-neurology
#8
Lisenka E L M Vissers, Kirsten J M van Nimwegen, Jolanda H Schieving, Erik-Jan Kamsteeg, Tjitske Kleefstra, Helger G Yntema, Rolph Pfundt, Gert Jan van der Wilt, Lotte Krabbenborg, Han G Brunner, Simone van der Burg, Janneke Grutters, Joris A Veltman, Michèl A A P Willemsen
PURPOSE: Implementation of novel genetic diagnostic tests is generally driven by technological advances because they promise shorter turnaround times and/or higher diagnostic yields. Other aspects, including impact on clinical management or cost-effectiveness, are often not assessed in detail prior to implementation. METHODS: We studied the clinical utility of whole-exome sequencing (WES) in complex pediatric neurology in terms of diagnostic yield and costs. We analyzed 150 patients (and their parents) presenting with complex neurological disorders of suspected genetic origin...
March 23, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28333843/does-obesity-affect-pathologic-agreement-of-initial-and-final-tumor-grade-of-disease-in-endometrial-cancer-patients
#9
Laura R Daily, Jonathan D Boone, Hannah C Machemehl, Eric D Thomas, Gerald McGwin, J Michael Straughn, Charles A Leath
OBJECTIVES: The objectives of this study were to compare preoperative and postoperative tumor grade to determine if surgical staging decisions for endometrial cancer based on preoperative biopsy are feasible and whether obesity affects the agreement. METHODS: A retrospective cohort study of women with endometrial cancer between January 2010 and December 2011 was performed. Demographics, stage of final pathology, biopsy method, preoperative and postoperative tissue grade, and histology were abstracted and stratified by patient body mass index (obese ≥30 kg/m and nonobese <30 kg/m)...
March 23, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28333768/management-of-pediatric-non-alcoholic-fatty-liver-disease-by-academic-hepatologists-in-canada-a-nationwide-survey
#10
Marialena Mouzaki, Simon C Ling, Richard A Schreiber, Binita M Kamath
BACKGROUND: The literature on the optimal clinical management of pediatric patients with non-alcoholic fatty liver disease (NAFLD) is limited. The objective of this study was to identify discrepancies in the care provided to patients with NAFLD by hepatologists practicing in academic centers across Canada. METHODS: A nationwide survey was distributed electronically to all pediatric hepatologists practicing in university-affiliated hospitals using the infrastructure of the Canadian Pediatric Hepatology Research Group...
March 22, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28333765/adherence-to-celiac-disease-and-eosinophilic-esophagitis-biopsy-guidelines-is-poor-in-children
#11
Thomas Wallach, Robert M Genta, Benjamin Lebwohl, Peter H R Green, Norelle R Reilly
OBJECTIVES: Celiac disease (CD) and eosinophilic esophagitis (EoE) are underdiagnosed gastrointestinal conditions which adversely impact children's health. Prior studies have shown that diagnostic guidelines for CD are not consistently followed in adults. The aims of this study are to assess the frequency with which endoscopists comply with diagnostic guidelines for CD and EoE in children, and to determine whether an association exists between adherence to biopsy guidelines and disease detection in pediatric patients...
March 22, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28333642/endomicroscopy-for-computer-and-robot-assisted-intervention
#12
Siyang Zuo, Guang-Zhong Yang
Endomicroscopy is a new technique that allows human tissue to be characterized in vivo, and in situ, circumventing the need for conventional biopsy and histology. Despite increased application and growing research interests in this area, the clinical application of endomicroscopy, however, is limited by difficulties in ergonomic control, consistent probe-tissue contact, large area surveillance and retargeting. Recently, advances in high-speed imaging, mosaicing and robotics have aimed to address these difficulties...
March 22, 2017: IEEE Reviews in Biomedical Engineering
https://www.readbyqxmd.com/read/28333603/focal-segmental-glomerulosclerosis-in-a-patient-with-ambiguous-genitalia-a-diagnostic-dilemma
#13
Oliver E Ross, Dean A Kujubu, John J Sim
The renal condition referred to as focal segmental glomerulosclerosis (FSGS) presents a diagnostic dilemma for the clinician. It encompasses and displays a nonspecific histologic appearance on a kidney biopsy specimen, rather than a unique disease entity. This characteristic of FSGS often makes treatment decisions and prognostication difficult. A 34-year-old man, who was born with ambiguous genitalia, had received a diagnosis of FSGS in young adulthood and now had advanced kidney disease. He underwent genetic testing to determine whether a genetic disorder was underlying his kidney disease and to ascertain his risk of FSGS recurrence if he were to receive a kidney transplant...
2017: Permanente Journal
https://www.readbyqxmd.com/read/28333404/upgrade-rate-and-imaging-features-of-atypical-apocrine-lesions
#14
Lauren Q Chang Sen, Wendie A Berg, Gloria J Carter
The purpose of our work was to identify imaging features of atypical apocrine lesions and determine the rate of upgrade to ductal carcinoma in situ (DCIS) or invasive carcinoma at excision after such a diagnosis on percutaneous breast biopsy. From January 1, 2006, through October 8, 2013, a total of 33,157 breast core biopsies were performed at University of Pittsburgh Medical Center. Of those, 58 (0.2%) showed atypical apocrine lesions. For 24, atypical apocrine adenosis (AAA) or atypical apocrine metaplasia (AAM) was the only risk lesion, with no known ipsilateral malignancy, and the results of excision were available...
March 23, 2017: Breast Journal
https://www.readbyqxmd.com/read/28333265/improving-oocyte-quality-by-transfer-of-autologous-mitochondria-from-fully-grown-oocytes
#15
Stine Gry Kristensen, Susanne Elisabeth Pors, Claus Yding Andersen
Older women are often the most challenging group of patients in fertility clinics due to a decline in both number and overall quality of oocytes. The quality of oocytes has been linked to mitochondrial dysfunction. In this mini-review, we discuss this hypothesis and suggest alternative treatment options using autologous mitochondria to potentially augment pregnancy potential in ART. Autologous transfer of mitochondria from the patient's own germline cells has attracted much attention as a possible new treatment to revitalize deficient oocytes...
March 2, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333258/anal-neoplasia-in-inflammatory-bowel-disease-classification-proposal-epidemiology-carcinogenesis-and-risk-management-perspectives
#16
Andrew Wisniewski, Jean-Francois Fléjou, Laurent Siproudhis, Laurent Abramowitz, Magali Svrcek, Laurent Beaugerie
Patients with inflammatory bowel disease (IBD) may develop, similarly to individuals from general population, rare cases of HPV-related anal canal squamous cell carcinoma (SCC) and their intra-epithelial precursor lesions, as well as very rare cases of anal canal adenocarcinoma. Patients with chronic perianal Crohn's disease (CD) are at substantial risk of developing SCC or adenocarcinoma from the fistula-lining epithelium, as well as SCC or adenocarcinoma arising from chronic anorectal ulcerations or strictures...
March 10, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28333245/euploidy-rates-in-donor-egg-cycles-significantly-differ-between-fertility-centers
#17
S Munné, M Alikani, L Ribustello, P Colls, Pedro A Martínez-Ortiz, D H McCulloh
STUDY QUESTION: Do external factors affect euploidy in egg donor cycles? SUMMARY ANSWER: The study demonstrates that during human assisted reproduction, embryonic chromosome abnormalities may be partly iatrogenic. WHAT IS KNOWN ALREADY: Chromosome abnormalities have been linked in the past to culture conditions such as temperature and Ph variations, as well as hormonal stimulation. Those reports were performed with older screening techniques (FISH), or ART methods no longer in use, and the subjects studied were not a homogeneous group...
March 2, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333210/levels-of-trophectoderm-mitochondrial-dna-do-not-predict-the-reproductive-potential-of-sibling-embryos
#18
Nathan R Treff, Yiping Zhan, Xin Tao, Meir Olcha, Michael Han, Jessica Rajchel, Liza Morrison, Scott J Morin, Richard T Scott
STUDY QUESTION: What is the predictive value of trophectoderm mitochondrial DNA (mtDNA) quantity for blastocyst reproductive potential? SUMMARY ANSWER: This study demonstrates that, within a given cohort, mtDNA quantitation does not distinguish between embryos that implant and embryos that do not implant after double embryo transfer (DET). WHAT IS ALREADY KNOWN: An association between implantation failure and increased quantities of mtDNA has been observed in two studies but not in a third...
February 23, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333209/assessment-of-endoscopic-mucosal-healing-of-ulcerative-colitis-using-linked-colour-imaging-a-novel-endoscopic-enhancement-system
#19
Kazuhiko Uchiyama, Tomohisa Takagi, Saori Kashiwagi, Yuki Toyokawa, Makoto Tanaka, Yuma Hotta, Osamu Dohi, Tetsuya Okayama, Naohisa Yoshida, Kazuhiro Katada, Kazuhiro Kamada, Takeshi Ishikawa, Osamu Handa, Hideyuki Konishi, Mitsuo Kishimoto, Nobuaki Yagi, Yuji Naito, Yoshito Itoh
Background and Aims: Mucosal healing and control of intestinal mucosal inflammation are important treatment goals for maintaining clinical remission in ulcerative colitis (UC) patients. Here, we investigated the efficacy of LCI, a novel endoscopic enhancement system, to diagnose mucosal inflammation in UC patients. Methods: All examinations were carried out with a LASEREO endoscopic system (FUJIFILM Co., Tokyo, Japan). Fifty-two patients with UC were enrolled, and 193 areas assessed by LCI were examined...
February 22, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28333020/-18-f-choline-positron-emission-tomography-computed-tomography-and-multiparametric-magnetic-resonance-imaging-for-the-detection-of-early-local-recurrence-of-prostate-cancer-initially-treated-by-radiation-therapy-comparison-with-systematic-3-dimensional-transperineal
#20
Salim Kanoun, Paul Walker, Jean-Marc Vrigneaud, Edouard Depardon, Vincent Barbier, Olivier Humbert, Morgan Moulin, Gilles Créhange, Luc Cormier, Romaric Loffroy, François Brunotte, Alexandre Cochet
PURPOSE: To compare the diagnostic performance of (18)F-fluorocholine positron emission tomography/computed tomography (FCH-PET/CT), multiparametric prostate magnetic resonance imaging (mpMRI), and a combination of both techniques for the detection of local recurrence of prostate cancer initially treated by radiation therapy. METHODS AND MATERIALS: This was a retrospective, single-institution study of 32 patients with suspected prostate cancer recurrence who underwent both FCH-PET/CT and 3T mpMRI within 3 months of one another for the detection of recurrence...
April 1, 2017: International Journal of Radiation Oncology, Biology, Physics
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