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https://www.readbyqxmd.com/read/29768197/induction-of-nitric-oxide-metabolism-in-enterocytes-alleviates-colitis-and-inflammation-associated-colon-cancer
#1
Noa Stettner, Chava Rosen, Biana Bernshtein, Shiri Gur-Cohen, Julia Frug, Alon Silberman, Alona Sarver, Narin N Carmel-Neiderman, Raya Eilam, Inbal Biton, Meirav Pevsner-Fischer, Niv Zmora, Alexander Brandis, Keren Bahar Halpern, Ram Mazkereth, Diego di Bernardo, Nicola Brunetti-Pierri, Muralidhar H Premkumar, Gillian Dank, Sandesh C S Nagamani, Steffen Jung, Alon Harmelin, Ayelet Erez
Nitric oxide (NO) plays an established role in numerous physiological and pathological processes, but the specific cellular sources of NO in disease pathogenesis remain unclear, preventing the implementation of NO-related therapy. Argininosuccinate lyase (ASL) is the only enzyme able to produce arginine, the substrate for NO generation by nitric oxide synthase (NOS) isoforms. Here, we generated cell-specific conditional ASL knockout mice in combination with genetic and chemical colitis models. We demonstrate that NO derived from enterocytes alleviates colitis by decreasing macrophage infiltration and tissue damage, whereas immune cell-derived NO is associated with macrophage activation, resulting in increased severity of inflammation...
May 15, 2018: Cell Reports
https://www.readbyqxmd.com/read/29764134/on-the-possibility-of-singlet-fission-in-crystalline-quaterrylene
#2
Xiaopeng Wang, Xingyu Liu, Cameron Cook, Bohdan Schatschneider, Noa Marom
Singlet fission (SF), the spontaneous down-conversion of a singlet exciton into two triplet excitons residing on neighboring molecules, is a promising route to improve organic photovoltaic (OPV) device efficiencies by harvesting two charge carriers from one photon. However, only a few materials have been discovered that exhibit intermolecular SF in the solid state, most of which are acene derivatives. Recently, there has been a growing interest in rylenes as potential SF materials. We use many-body perturbation theory in the GW approximation and the Bethe-Salpeter equation to investigate the possibility of intermolecular SF in crystalline perylene and quaterrylene...
May 14, 2018: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29762917/association-of-change-in-patient-reported-health-status-after-transcatheter-aortic-valve-replacement-and-postoperative-outcomes
#3
Alexis Kofi Okoh, Nathan Kang, Dhaval Chauhan, Nicky Haik, Dustin Hanos, Marc Cohen, Chungeng Chen, Bruce Haik, Mark J Russo
BACKGROUND: The study aim was to investigate the relationship between postoperative morbidity after transcatheter aortic valve replacement (TAVR) and short-term patient-reported health status, using the Kansas City Cardiomyopathy Questionnaire (KCCQ). METHODS: The association between 30-day post-procedure changes in patient-reported heath status and post-TAVR outcomes was examined. Patients were stratified into three groups based on observed changes in KCCQ-Overall scores (OS): Group A, increase in KCCQ-OS ≥10 points; Group B, KCCQ-OS scores <10 points; and Group C, decline in KCCQ-OS ≥10 points...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29759179/n-doped-carbon-nanotubes-reinforced-hollow-fiber-solid-phase-microextraction-coupled-with-high-performance-liquid-chromatography-for-the-determination-of-phytohormones-in-tomatoes
#4
Xiao-Fei Han, Juan Chen, Yan-Ping Shi
A N-doped carbon nanotubes-reinforced hollow fiber solid-phase microextraction (N-doped CNTs-HF-SPME) method was developed for determination of two naphthalene-derived phytohormones, 1-naphthalene acetic acid (NAA) and 2-naphthoxyacetic acid (2-NOA), at trace levels in tomatoes. N-doped CNTs were dispersed in ultrapure water with the assistance of surfactant, and then immobilized into the pores of hollow fiber by capillary forces and sonification. The resultant N-doped CNTs-HF was wetted with 1-octanol, subsequently immersed into the tomato samples to extract the target analytes under a magnetic stirring, and then desorbed with methanol by sonication prior to chromatographic analysis...
August 1, 2018: Talanta
https://www.readbyqxmd.com/read/29751167/efficacy-and-follow-up-of-sub-total-colectomy-with-ileo-rectal-anastomoses-in-patients-with-colitis-associated-neoplasia
#5
Noa Krugliak Cleveland, Jacob E Ollech, Ruben J Colman, Dylan Rodriquez, Ayal Hirsch, Russel D Cohen, Stephen B Hanauer, John Hart, Roger Hurst, David T Rubin
No abstract text is available yet for this article.
May 8, 2018: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29745280/reporting-on-longitudinal-live-birth-rates-and-cumulative-delivery-rates-are-more-realistic-outcome-measures-than-sperm-retrieval-rates-in-couples-undergoing-mtese-icsi
#6
Khaled Almekaty, Saad Abomelha, Yau Thum, James Nicopoullos, Tim Bracewell-Milnes, Tet Yap, Suks Minhas
The live birth rates (LBRs) in men with non-obstructive azoospermia (NOA) undergoing microdissection TESE (mTESE) are under reported, with surgical sperm retrieval rate often used as the primary outcome measure. We analysed longitudinal and cumulative delivery rates following mTESE- intracytoplasmic sperm injection (ICSI) in NOA. Sperm was retrieved in 45% of patients undergoing mTESE. Median male and female age were 42 years (IQR 37-47) and 35 years (IQR 31-38) respectively. A total of 141 ICSI cycles and 23 frozen embryo transfers resulted in 62 pregnancies and 37 LBRs...
May 10, 2018: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/29741422/a-deeper-understanding-of-depression-and-suicidality-among-medical-students
#7
Noa Heiman, Rachel Davis, Brian Rothberg
Prevalence rates for depression among medical students are three times higher than the prevalence rates of depression in the general population. In order to understand these high prevalence rates, the authors discuss the underlying psychodynamics of a subset of medical students who seek therapy for depression and suicidality during their medical school years. Does medical school screen for people who are more prone to depression or does medical school cause high depression rates? The authors describe students with the combination of harsh/critical aspects from their early family life coupled with emotional misattunement of caregivers...
May 9, 2018: Medical Teacher
https://www.readbyqxmd.com/read/29739960/time-to-death-approach-to-reveal-chronic-and-cumulative-toxicity-of-a-fungicide-for-honeybees-not-revealed-with-the-standard-ten-day-test
#8
Noa Simon-Delso, Gilles San Martin, Etienne Bruneau, Louis Hautier
Synthetic fungicides are pesticides widely used in agriculture to control phytopathogenic fungi. The systemicity, persistency and intense application of some of these fungicides, such as boscalid, leads to long periods of exposure for honeybees via contaminated water, pollen and nectar. We exposed adult honeybees in the lab to food contaminated with boscalid for 33 days instead of the standard 10-day test. Most of the toxic effects were observed after 10 days. The median time to death (LT50 ) ranged from 24...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29737873/adamts1-and-adamts5-metalloproteases-produced-by-sertoli-cells-a-potential-diagnostic-marker-in-azoospermia
#9
Oya Sena Aydos, Yunus Yukselten, Sinan Ozkavukcu, Asuman Sunguroglu, Kaan Aydos
In this study, our aim was to detect protein levels of A Disintegrin and Metalloproteinase with Thrombospondin Motifs 1 and 5 (ADAMTS1 and ADAMTS5) proteases and to examine the effect of in vitro FSH supplementation on protease production in cultured Sertoli cells. The expression of metalloproteases, ADAMTS1, and ADAMTS5 were investigated in Sertoli cell cultures as well as in ejaculate of azoospermic men which then were compared with ejaculates of the fertile control group. A total of 15 azoospermic men, diagnosed as obstructive (OA, n = 5) and nonobstructive (NOA, n = 10) azoospermia were included in the study...
May 8, 2018: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29734168/sickle-cell-disease-complicated-by-iron-overload-an-under-recognized-risk-factor-for-vibrio-vulnificus-infection
#10
Firas El Chaer, Noa G Holtzman, Maria R Baer, Ann B Zimrin, Jennie Y Law
No abstract text is available yet for this article.
May 7, 2018: Acta Haematologica
https://www.readbyqxmd.com/read/29733793/do-body-mass-index-hormone-profile-and-testicular-volume-effect-sperm-retrieval-rates-of-microsurgical-sperm-extraction-in-the-patients-with-nonobstructive-azoospermia
#11
Serkan Karamazak, Fuat Kızılay, Tuncer Bahçeci, Bülent Semerci
OBJECTIVE: We aimed to evaluate the effect of body mass index (BMI), follicle stimulating hormone (FSH), and luteinizing hormone (LH) levels and the mean testicular volume on sperm retrieval rates in microsurgical sperm extraction (microTESE) in the patients with nonobstructive azoospermia (NOA). MATERIAL AND METHODS: The data of 282 infertile patients with NOA were analysed retrospectively. The patients with normal karyotype and no Y microdeletions were included in the study...
May 2018: Turkish Journal of Urology
https://www.readbyqxmd.com/read/29733245/the-fit-between-emotion-regulation-choice-and-individual-resources-is-associated-with-adaptive-functioning-among-young-children
#12
Shirel Dorman Ilan, Noa Tamuz, Gal Sheppes
Being able to resist temptation at a young age is crucial for successful functioning yet it can be challenging. According to the Selection, Optimization, and Compensation with Emotion Regulation (SOC-ER) framework, one central element of successful functioning is selection which involves choosing among regulatory options whose resource requirements fits with the amount of available resources an individual possesses. Although conceptually important, direct empirical evidence is lacking. Accordingly, the present study utilised performance based measures to examine the interactive effect of regulatory selection to resist temptation, and individual differences in executive resources, on functioning in young children...
May 7, 2018: Cognition & Emotion
https://www.readbyqxmd.com/read/29732665/novel-electrical-conductivity-device-for-osteotomy-preparation-for-dental-implants-placement-a-cadaver-study
#13
Adi Lorean, Noa Barer, Horia Barbu, Liran Levin
OBJECTIVES: To evaluate the accuracy, safety, and anticipation effect of a novel electrical conductivity device (SG) in maxillary osteotomy preparation for placement of dental implants. MATERIALS AND METHODS: Thirty-seven osteotomies were prepared by three operators with different levels of expertise, using the SG protocol in the maxilla of six fresh frozen cadavers. A pre-op CT measurement of the length of bone in the desired implant location was taken and compared with the final length of the osteotomy created using SG during surgery...
May 6, 2018: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29730310/analysis-and-identification-of-elongated-mineral-particles-in-road-coated-aggregates
#14
Erell Leocat, Christophe Rielland, Aurélien Urvoy, Patrice Letessier
The issue of Elongated Mineral Particles (EMP) in building materials has been revealed during roadworks in 2013 in France. In fact, road coating aggregates are made of specific rock gravels that can contain Naturally Occurring Asbestos (NOA), which is mainly actinolite. The legislation refers to six regulatory asbestos, that consist in asbestiform habitus of the six minerals. The current technical standard is not adapted for analyzing natural material, as it cannot distinguish the asbestiform fibers and the cleavage fragments fibers...
May 3, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29728012/increase-in-ischemic-stroke-incident-hospitalizations-among-bedouin-arabs-during-ramadan-month
#15
Noa Zimhony, Ibrahim Abu-Salameh, Iftach Sagy, Yotam Dizitzer, Liat Oxman, Maayan Yitshak-Sade, Victor Novack, Anat Horev, Gal Ifergane
BACKGROUND: Previous studies have not shown any significant effect on stroke incidence during Ramadan. We aimed to investigate the association between ischemic stroke incident hospitalizations and Ramadan, accounting for seasonality and temperature. METHODS AND RESULTS: This retrospective cohort study included all patients admitted with acute ischemic stroke to Soroka University Medical Center from June 2012 to June 2016. We obtained daily mean temperatures and relative humidity rates from 2 monitoring stations in South Israel...
May 3, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29727537/-testicular-histology-does-not-affect-the-clinical-outcomes-of-icsi-in-men-with-non-obstructive-azoospermia
#16
Yan-Rong Kuai, Zhan-Ju He, Sheng Wang, Kai Zhang, Cheng Zeng, Liang Chen, Qing Xue, Jing Shang, Hui-Xia Yang, Yang Xu
Objective: To investigate whether testicular histology influences the clinical outcomes of intracytoplasmic sperm injection (ICSI) in men with non-obstructive azoospermia (NOA). METHODS: We retrospectively analyzed the clinical data about 73 cases of NOA undergoing ICSI, including 105 ICSI cycles and 79 embryo transfer cycles. The infertility of the patients was attributed to male factors only or both male and female tube factors and the females' age was ≤38 years...
October 2017: Zhonghua Nan Ke Xue, National Journal of Andrology
https://www.readbyqxmd.com/read/29726663/-trigger-effect-of-hmg-and-hcg-in-the-treatment-of-unexplainable-non-obstructive-azoospermia
#17
Hao-Rui Hu, Hong-Chuan Nie, Wei-Min Yang, Yuan Sun, Hui Huang, Fang-Gang Xie
Objective: To investigate whether the trigger effect of human menopausal gonadotropins (hMG) and human chorionic gonadotropins (hCG) attributes to the treatment of unexplainable non-obstructive azoospermia (NOA). METHODS: We retrospectively analyzed the clinical data about 282 cases of unexplainable NOA treated in the Maternity and Child Health Hospital of Guizhou Province from January 2010 to May 2017. All the patients underwent trigger treatment by intramuscular injection of hMG at 75 IU 3 times a week for 2 weeks, followed by hCG at 2 000 IU twice a week for another 2 weeks, and meanwhile took vitamin E, Levocarnitine and Tamoxifen as an adjunctive therapy...
September 2017: Zhonghua Nan Ke Xue, National Journal of Andrology
https://www.readbyqxmd.com/read/29726661/-micro-dissection-testicular-sperm-extraction-for-patients-with-non-obstructive-azoospermia-a-report-of-196-cases
#18
Jing Zhang, Gui-Hua Liu, Lu-Gang Zhao, Xiao-Yan Liang, Zhong-Yang Wang
Objective: To investigate the effect of micro-dissection testicular sperm extraction (microTESE) for patients with non-obstructive azoospermia (NOA) and the indications of the strategy. METHODS: This retrospective study included 196 cases of NOA undergoing microTESE in our center from September 2014 to March 2017. We recorded the sperm retrieval rate (SRR) and analyzed its correlation with the patients' age, testis volume, level of blood follicle-stimulating hormone (FSH), and etiological factors...
September 2017: Zhonghua Nan Ke Xue, National Journal of Andrology
https://www.readbyqxmd.com/read/29723688/braf-mutant-lung-cancer-pd-l1-expression-tumor-mutational-burden-microsatellite-instability-status-and-response-to-immune-check-point-inhibitors
#19
Elizabeth Dudnik, Nir Peled, Hovav Nechushtan, Mira Wollner, Amir Onn, Abed Agbarya, Mor Moskovitz, Shoshana Keren, Noa Popovits-Hadari, Damien Urban, Moshe Mishaeli, Alona Zer, Aaron M Allen, Natalie Maimon Rabinovich, Ofer Rotem, Teodor Kuznetsov, Tzippy Shochat, Laila C Roisman, Jair Bar
INTRODUCTION: The efficacy of immune check-point inhibitors (ICPi) in BRAF mutant NSCLC is unknown. METHODS: Multi-institutional retrospective chart review identified 39 patients with BRAF mutant NSCLC. The patients were divided into two groups: V600E (Group A, n=21) and non-V600E (Group B, n=18). PD-L1 expression, tumor mutational burden (TMB) and microsatellite instability status (MSI) were assessed in 29 (74%), 11 (28%) and 12 (31%) patients, respectively. ORR, PFS with ICPi and OS were analyzed...
April 30, 2018: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/29718654/how-transparent-oxides-gain-some-color-discovery-of-a-cenio-3-reduced-bandgap-phase-as-an-absorber-for-photovoltaics
#20
Hannah-Noa Barad, David A Keller, Kevin J Rietwyk, Adam Ginsburg, Shay Tirosh, Simcha Meir, Assaf Y Anderson, Arie Zaban
In this work, we describe the formation of a reduced bandgap CeNiO3 phase, which, to our knowledge, has not been previously reported, and we show how it is utilized as an absorber layer in a photovoltaic cell. The CeNiO3 phase is prepared by a combinatorial materials science approach, where a library containing a continuous compositional spread of Ce x Ni1- x O y is formed by pulsed laser deposition (PLD); a method that has not been used in the past to form Ce-Ni-O materials. The library displays a reduced bandgap throughout, calculated to be 1...
May 2, 2018: ACS Combinatorial Science
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