keyword
MENU ▼
Read by QxMD icon Read
search

wada testing

keyword
https://www.readbyqxmd.com/read/29150907/sensitivity-of-doping-biomarkers-after-administration-of-a-single-dose-testosterone-gel
#1
Jenny Mullen, Annica Börjesson, Oscar Hopcraft, Jenny J Schulze, Magnus Ericsson, Anders Rane, Mikael Lehtihet, Lena Ekström
Micro-doping with testosterone (T) is challenging to detect with the current doping tests. Today, the methods available to detect T are longitudinally monitoring of urine biomarkers in the Athlete Biological Passport (ABP) and measuring the isotopic composition of excreted biomarkers to distinguish the origin of the molecule. In this study, we investigated the detectability of a single dose of 100 mg T gel in 8 healthy male subjects. We also studied which biomarkers were most sensitive to T gel administration, including blood biomarkers...
November 18, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29149502/annual-banned-substance-review-analytical-approaches-in-human-sports-drug-testing
#2
Mario Thevis, Tiia Kuuranne, Hans Geyer
A number of high profile revelations concerning anti-doping rule violations over the past 12 months has outlined the importance of tackling prevailing challenges and reducing the limitations of the current anti-doping system. At this time, the necessity to enhance, expand and improve analytical test methods in response to the substances outlined in the World Anti-Doping Agency's (WADA) Prohibited List represents an increasingly crucial task for modern sports drug testing programs. The ability to improve analytical testing methods often relies on the expedient application of novel information regarding superior target analytes for sports drug testing assays, drug elimination profiles, alternative test matrices, together with recent advances in instrumental developments...
November 17, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29148891/hyperventilation-and-breath-holding-test-with-indocyanine-green-kinetics-predicts-cerebral-hyperperfusion-after-carotid-artery-stenting
#3
Ichiro Nakagawa, Shohei Yokoyama, Daisuke Wajima, Fumihiko Nishimura, Shuichi Yamada, Hiroshi Yokota, Yasushi Motoyama, Young Su Park, Takeshi Wada, Kimihiko Kichikawa, Hiroyuki Nakase
Cerebral hyperperfusion syndrome (CHS) is a serious complication following carotid artery stenting (CAS), but definitive early prediction of CHS has not been established. Here, we evaluated whether indocyanine green kinetics and near-infrared spectroscopy (ICG-NIRS) with hyperventilation (HV) and the breath-holding (BH) test can predict hyperperfusion phenomenon after CAS. The blood flow index (BFI) ratio during HV and BH was prospectively monitored using ICG-NIRS in 66 patients scheduled to undergo CAS. Preoperative cerebrovascular reactivity (CVR) and the postoperative asymmetry index (AI) were also assessed with single-photon emission computed tomography before and after CAS and the correlation with the BFI HV/rest ratio, BFI BH/rest ratio was evaluated...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29148228/evaluation-of-markers-out-of-the-steroid-profile-for-the-screening-of-testosterone-misuse-part-i-transdermal-administration
#4
Aristotelis Kotronoulas, Àlex Gomez-Gómez, Andreu Fabregat, Jordi Segura, Sheng Yang, Yanyi Xing, Wu Moutian, Josep Marcos, Jesús Joglar, Rosa Ventura, Oscar J Pozo
Although the introduction by WADA of the steroid module of the athlete biological passport (ABP) marked an important step forward in the screening of testosterone (T) misuse, it still remains one of the most difficult challenges in doping control analysis. The urinary determination of alternative markers has been recently reported as a promising tool for improving the screening of T oral administration. However, their evaluation for other, commonly used, administration routes is still required. The main goal of this study is the evaluation of the potential of two groups of metabolites (cysteinyl conjugated and glucuronoconjugated) after transdermal and intramuscular administration of T...
November 17, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29107706/effects-of-transcranial-direct-current-stimulation-over-the-supplementary-motor-area-body-weight-supported-treadmill-gait-training-in-hemiparetic-patients-after-stroke
#5
Atsushi Manji, Kazu Amimoto, Tadamitsu Matsuda, Yoshiaki Wada, Akira Inaba, Sangkyun Ko
Transcranial direct current stimulation (tDCS) is used in a variety of disorders after stroke including upper limb motor dysfunctions, hemispatial neglect, aphasia, and apraxia, and its effectiveness has been demonstrated. Although gait ability is important for daily living, there were few reports of the use of tDCS to improve balance and gait ability. The supplementary motor area (SMA) was reported to play a potentially important role in balance recovery after stroke. We aimed to investigate the effect of combined therapy body weight-supported treadmill training (BWSTT) and tDCS on gait function recovery of stroke patients...
October 28, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29098788/urine-reference-intervals-for-human-chorionic-gonadotropin-hcg-isoforms-by-immunoextraction-tandem-mass-spectrometry-to-detect-hcg-use
#6
Anthony W Butch, Brian D Ahrens, Nuraly K Avliyakulov
Human chorionic gonadotropin (hCG) stimulates testosterone production by the testicles and can normalize suppressed testosterone concentrations in males following prolonged anabolic steroid use. Because of the potential for abuse by males, hCG is on the World Anti-Doping Agency (WADA) list of prohibited substances. The majority of WADA-accredited laboratories measure urinary hCG using an automated immunoassay. Only immunoassays that recognize the intact alpha and beta heterodimer of hCG (intact hCG) should be used to measure urinary hCG for doping control purposes since intact hCG is the only biologically active molecule...
November 3, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29091250/functional-hemispherectomy-for-adult-rasmussen-encephalitis-a-case-report-and-literature-review
#7
Qun Wang, Zhanpeng Zhu, Guangming Wang, Lichao Sun, Jiqing Qiu
BACKGROUND: Rasmussen encephalitis (RE) is a rare and severe brain disorder associated with unilateral hemispheric atrophy, manifesting as severe refractory epilepsy, hemiplegia, defects of motor and speech functions, and cognitive impairment. Treatment of RE, especially in adult patients, is extremely challenging. Herein, we report the case of an adult patient with RE who was treated with a functional hemispherectomy and achieved a favorable prognosis. CASE REPORT: A 29-year-old woman presented with a 24-year history of epileptic seizures...
September 26, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/29076659/cytological-findings-of-ros1-rearranged-lung-adenocarcinoma
#8
Naoto Kuroda, Hiroyuki Tamiya, Kimiko Nakatani, Haruna Ide, Yukari Wada, Kaori Yasuoka, Masahiko Ohara, Keiko Mizuno, Kenji Yorita, Kengo Takeuchi
ROS1-rearranged lung adenocarcinoma has been recently identified. We report a case of ROS1-rearranged lung adenocarcinoma with special emphasis on cytological findings. Here, we report a case of young woman with ROS1-rearranged lung adenocarcinoma diagnosed by cytology and discuss the clinical, cytological, and molecular findings. Cytologically, the tumor consisted of small tight clusters of cells with high nuclear/cytoplasmic ratio. Nuclei were enlarged and small nucleoli were occasionally observed. Signet-ring cells were focally identified...
October 27, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29034235/coagulofibrinolytic-changes-in-patients-with-post-cardiac-arrest-syndrome
#9
REVIEW
Takeshi Wada
Whole-body ischemia and reperfusion due to cardiac arrest and subsequent return of spontaneous circulation constitute post-cardiac arrest syndrome (PCAS), which consists of four syndromes including systemic ischemia/reperfusion responses and post-cardiac arrest brain injury. The major pathophysiologies underlying systemic ischemia/reperfusion responses are systemic inflammatory response syndrome and increased coagulation, leading to disseminated intravascular coagulation (DIC), which clinically manifests as obstruction of microcirculation and multiple organ dysfunction...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/29032611/fast-irms-screening-of-pseudoendogenous-steroids-in-doping-analyses
#10
Xavier de la Torre, Cristiana Colamonici, Davide Curcio, Francesco Botrè
The detection of the abuse of pseudoendogenous steroids (testosterone and/or its precursors) is currently based, when possible, on the application of the steroid module of the World Antidoping Agency (WADA), Athletes' Biological Passport (ABP), implemented through ADAMS. When a suspicious sample is detected, the confirmation by isotope ratio mass spectrometry (IRMS) is required. It is well known that this confirmation procedure is time consuming, expensive and can be only applied on a reduced number of samples...
October 15, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29032594/implementation-of-aicar-analysis-by-gc-c-irms-for-anti-doping-purposes
#11
C Buisson, C Frelat, C Mongongu, N Martinat, M Audran
AICAR (5-aminoimidazole-4-carboxamide-1-β-D-ribofuranoside), is a naturally-occurring substance which is part to the prohibited list of WADA. It is claimed to improve physical performance when administered as a supplement. As for other endogenous compounds such as steroids, the GC-C-IRMS analysis remains an efficient tool to differentiate endogenous substances from exogenous ones. A protocol was described in the literature for the analysis of AICAR by GC-C-IRMS. The aim of the present study was to implement this protocol in our laboratory and to propose solutions to avoid the difficulties encountered...
October 15, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29026274/a-case-of-an-infant-with-congenital-combined-pituitary-hormone-deficiency-and-normalized-liver-histology-of-infantile-cholestasis-after-hormone-replacement-therapy
#12
Keisuke Wada, Hironori Kobayashi, Aisa Moriyama, Yasuhiro Haneda, Yuichi Mushimoto, Yuki Hasegawa, Kazumichi Onigata, Koji Kumori, Noriyoshi Ishikawa, Riruke Maruyama, Tsuyoshi Sogo, Lynne Murphy, Takeshi Taketani
Congenital combined pituitary hormone deficiency (CPHD) may present with cholestasis in the neonate or during early infancy. However, its precise mechanism is unknown. A 3-mo-old boy presented with cryptorchidism and hypoplastic scrotum after birth. Neonatal jaundice was noted but temporarily improved with phototherapy. Jaundice recurred at 2 mo of age. Elevated direct bilirubin (D-Bil) and liver dysfunction were found but cholangiography showed no signs of biliary atresia (BA). Liver biopsy findings showed giant cell formation of hepatocytes with hypoplastic bile ducts...
2017: Clinical Pediatric Endocrinology: Case Reports and Clinical Investigations: Official Journal of the Japanese Society for Pediatric Endocrinology
https://www.readbyqxmd.com/read/29024715/proposal-of-a-flow-scheme-for-the-chemical-form-based-quantitative-analysis-of-chlorine-compounds-in-pulp-for-sanitary-products-and-verification-of-safety
#13
Takeharu Wada, Kei Iwasaki, Yasushi Minobe, Mitsuhiro Wada, Shigeo Imai, Satoko Ishii
To determine the amounts and chemical forms of chlorine compounds in elemental chlorine-free (ECF) bleached pulp for sanitary products, a chemical-form-based quantitative analysis flow scheme was created. The scheme involves quantitative determination of compounds eluted in elution tests assuming dermal exposure. The results indicated that most of the chlorine compounds in pulp used for sanitary products were insoluble organically bound chlorine and water-soluble chlorides consisting of chloride ions. The total amount of chlorine obtained by analysis of the total chlorine in the pulp products was close to the sum of the amounts of water-soluble chlorides, residual chlorine, chloroacetic acids, and insoluble organically bound chlorine...
October 9, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28994210/immunomagnetic-beads-based-isolation-of-erythropoietins-from-urine-and-blood-for-sports-anti-doping-control
#14
Philippe Desharnais, Jean-Francois Naud, Christiane Ayotte
According to World Anti-Doping Agency (WADA) technical document for erythropoiesis stimulating agents (ESA) analysis (TD2014EPO), double- blotting of serum/plasma samples is mandatory for all analysis by isoelectric focusing (IEF) and for the confirmation procedures (CP) performed by SDS-PAGE or SAR-PAGE. The goal is to prevent potential cross-reactions of the secondary antibody with remaining proteins in the purified samples. To this end, we have developed an immunopurification method of ESA in serum/plasma samples using a combination of streptavidin-coated immunomagnetic beads and biotinylated anti-EPO polyclonal antibodies...
October 9, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28988762/a-series-of-novel-indazole-derivatives-of-sirt-1-activator-as-osteogenic-regulators
#15
Masakazu Atobe, Natsumi Yamakawa, Yasuhiro Wada, Tokuhito Goto, Masashi Kawanishi, Takeshi Ito, Makoto Saito, Masahiro Takeda, Takanori Tabata, Hirokazu Arai
A series of indazole derivatives were identified as Sirt 1 activators though high-throughput screening. Optimization of each substituent on the indazole ring led to the identification of compound 13. Compound 13 appeared to give the best Sirt 1 activity of the compounds tested and also showed osteogenesis activity in a cell assay. Sirt 1 activators are therefore potential candidates for the treatment of osteoporosis.
September 25, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28976928/intended-or-unintended-doping-a-review-of-the-presence-of-doping-substances-in-dietary-supplements-used-in-sports
#16
REVIEW
José Miguel Martínez-Sanz, Isabel Sospedra, Christian Mañas Ortiz, Eduard Baladía, Angel Gil-Izquierdo, Rocio Ortiz-Moncada
INTRODUCTION: The use of dietary supplements is increasing among athletes, year after year. Related to the high rates of use, unintentional doping occurs. Unintentional doping refers to positive anti-doping tests due to the use of any supplement containing unlisted substances banned by anti-doping regulations and organizations, such as the World Anti-Doping Agency (WADA). The objective of this review is to summarize the presence of unlabeled doping substances in dietary supplements that are used in sports...
October 4, 2017: Nutrients
https://www.readbyqxmd.com/read/28970253/characterization-of-soy-deprestatin-a-novel-orally-active-decapeptide-that-exerts-antidepressant-like-effects-via-gut-brain-communication
#17
Yukiha Mori, Saho Asakura, Akane Yamamoto, Saori Odagiri, Daisuke Yamada, Masayuki Sekiguchi, Keiji Wada, Masaru Sato, Atsushi Kurabayashi, Hideyuki Suzuki, Ryuhei Kanamoto, Kousaku Ohinata
We found that the orally administered thermolysin digest of β-conglycinin exhibits antidepressant-like effects in tail suspension and forced swim tests in mice. A comprehensive peptide analysis of the digest using liquid chromatography/mass spectrometry was performed, and LSSTQAQQSY emerged as a candidate antidepressant-like peptide. Orally administered synthetic LSSTQAQQSY exhibited antidepressant-like effects at a dose of 0.3 mg/kg; therefore, we named the decapeptide soy-deprestatin. In contrast, intraperitoneally administered soy-deprestatin was ineffective...
September 27, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28960904/high-volume-steroid-isotopic-standards-developed-as-working-standards-for-gas-chromatography-combustion-isotope-ratio-mass-spectrometry
#18
Herbert J Tobias, J Thomas Brenna
High precision carbon isotope ratio analysis of urinary steroids by gas chromatography combustion isotope ratio mass spectrometry (GCC-IRMS) is the official test to detect illicit doping of synthetic versions of endogenous steroids such as testosterone. Our group created the first steroid isotopic standards (SIS) specifically for the World Anti-Doping Agency (WADA) accredited laboratories. The standards contain mixtures of steroids as acetates or free steroids at ~400 μg each per ampoule and have been widely distributed to anti-doping laboratories to facilitate comparability of inter-laboratory results...
September 28, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28941329/tokyo-guidelines-2018-initial-management-of-acute-biliary-infection-and-flowchart-for-acute-cholangitis
#19
Fumihiko Miura, Kohji Okamoto, Tadahiro Takada, Steven M Strasberg, Horacio J Asbun, Henry A Pitt, Harumi Gomi, Joseph S Solomkin, David Schlossberg, Ho-Seong Han, Myung-Hwan Kim, Tsann-Long Hwang, Miin-Fu Chen, Wayne Shih-Wei Huang, Seiki Kiriyama, Takao Itoi, O James Garden, Kui-Hin Liau, Akihiko Horiguchi, Keng-Hao Liu, Cheng-Hsi Su, Dirk Joan Gouma, Giulio Belli, Christos Dervenis, Palepu Jagannath, Angus C W Chan, Wan Yee Lau, Itaru Endo, Kenji Suzuki, Yoo-Seok Yoon, Eduardo de Santibañes, Mariano Eduardo Giménez, Eduard Jonas, Harjit Singh, Goro Honda, Koji Asai, Yasuhisa Mori, Keita Wada, Ryota Higuchi, Manabu Watanabe, Toshiki Rikiyama, Naohiro Sata, Nobuyasu Kano, Akiko Umezawa, Shuntaro Mukai, Hiromi Tokumura, Jiro Hata, Kazuto Kozaka, Yukio Iwashita, Taizo Hibi, Masamichi Yokoe, Taizo Kimura, Seigo Kitano, Masafumi Inomata, Koichi Hirata, Yoshinobu Sumiyama, Kazuo Inui, Masakazu Yamamoto
The initial management of patients with suspected acute biliary infection starts with the measurement of vital signs to assess whether or not the situation is urgent. If the case is judged to be urgent, initial medical treatment should be started immediately including respiratory/circulatory management if required, without waiting for the definitive diagnosis. The patient's medical history is then taken; an abdominal examination is performed; blood tests, urinalysis, and diagnostic imaging are carried out; and a diagnosis is made using the diagnostic criteria for cholangitis/cholecystitis...
September 23, 2017: Journal of Hepato-biliary-pancreatic Sciences
https://www.readbyqxmd.com/read/28939178/prostate-cancer-post-prostatectomy-radiotherapy-ct-vs-mri-for-vesico-urethral-anastomosis-target-delineation
#20
Daryl Lim Joon, Adeline Lim, Michal Schneider, Chee-Yan Hiew, Nathan Lawrentschuk, Shomik Sengupta, Farshad Foroudi, Trish Jenkins, David Angus, Morikatsu Wada, Michael Chao, Vincent Khoo
BACKGROUND: Vesico-urethral anastomosis (VUA) is critical to the clinical target volume (CTV) in post-prostatectomy radiotherapy (PPRT), as it is the commonest site of recurrence. Typically, this is performed on a CT alone but guidelines recommend MRI. OBJECTIVE: To evaluate the VUA spatial differences between CT (ctVUA) and MRI (mrVUA) and analyse its impact on the CT defined CTV (ctCTV) as recommended by published guidelines. MATERIALS AND METHODS: We identified 34 patients with a co-registered simulation CT and T2 weighted MRI...
October 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
keyword
keyword
56051
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"