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https://www.readbyqxmd.com/read/28338690/a-viscous-solvent-enables-information-transfer-from-gene-length-nucleic-acids-in-a-model-prebiotic-replication-cycle
#1
Christine He, Isaac Gállego, Brandon Laughlin, Martha A Grover, Nicholas V Hud
Many hypotheses concerning the nature of early life assume that genetic information was once transferred through the template-directed synthesis of RNA, before the emergence of coded enzymes. However, attempts to demonstrate enzyme-free, template-directed synthesis of nucleic acids have been limited by 'strand inhibition', whereby transferring information from a template strand in the presence of its complementary strand is inhibited by the stability of the template duplex. Here, we use solvent viscosity to circumvent strand inhibition, demonstrating information transfer from a gene-length template (>300 nt) within a longer (545 bp or 3 kb) duplex...
April 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28338562/making-eye-health-a-population-imperative-a-vision-for-tomorrow-a-report-by-the-committee-on-public-health-approaches-to-reduce-vision-impairment-and-promote-eye-health
#2
Lori L Grover
No abstract text is available yet for this article.
April 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28336252/trends-in-cervical-cancer-brachytherapy-volume-suggest-case-volume-is-not-the-primary-driver-of-poor-compliance-rates-with-brachytherapy-delivery-for-locally-advanced-cervical-cancer
#3
Daniel M Trifiletti, Surbhi Grover, Bruce Libby, Timothy N Showalter
PURPOSE: The aim of this study was to evaluate temporal trends in the volume of cervical cancer brachytherapy cases available to trainees as a potential contributing factor to national trends toward decreased utilization of brachytherapy for locally advanced cervical cancer. METHODS AND MATERIALS: The National Cancer Database was queried to identify a cohort of women diagnosed with locally advanced cervical cancer during 2004-2013 who received primary radiation therapy...
March 20, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28333856/extreme-diurnal-variation-of-central-macular-thickness-in-diabetic-macular-edema
#4
Kumar Sambhav, Sandeep Grover, Kakarla V Chalam
PURPOSE: Spectral domain optical coherence tomography is an established modality to quantify diabetic macular edema (DME). Change in central subfield thickness exceeding 3% to 6% in DME is likely to be significant. In this case of DME, we describe an extreme bilateral variation in central macular thickness on spectral domain optical coherence tomography over two consecutive days without any treatment. METHODS: The patient with DME and nonproliferative diabetic retinopathy underwent visual acuity testing, slit-lamp biomicroscopy, and dilated fundus examination...
March 22, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28332610/multiparty-quantum-key-agreement-based-on-quantum-search-algorithm
#5
Hao Cao, Wenping Ma
Quantum key agreement is an important topic that the shared key must be negotiated equally by all participants, and any nontrivial subset of participants cannot fully determine the shared key. To date, the embed modes of subkey in all the previously proposed quantum key agreement protocols are based on either BB84 or entangled states. The research of the quantum key agreement protocol based on quantum search algorithms is still blank. In this paper, on the basis of investigating the properties of quantum search algorithms, we propose the first quantum key agreement protocol whose embed mode of subkey is based on a quantum search algorithm known as Grover's algorithm...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28331251/is-focus-on-prevention-missing-in-national-health-programs-a-situation-analysis-of-iec-bcc-health-promotion-activities-in-a-district-setting-of-punjab-and-haryana
#6
Jarnail Singh Thakur, Nidhi Jaswal, Ashoo Grover
CONTEXT: Health promotion (HP) has been an integral part of all national programs although it has been a low priority in India, which has resulted in a failure to achieve the desired results. SETTINGS AND DESIGN: Situation analysis of information education communication (IEC)/behavior change communication (BCC)/HP activities within the existing national health programs was undertaken in the district of Hoshiarpur in Punjab and the district of Ambala in Haryana during 2013-14...
January 2017: Indian Journal of Community Medicine
https://www.readbyqxmd.com/read/28327484/workplace-violence-against-resident-doctors-in-a-tertiary-care-hospital-in-delhi
#7
Tanu Anand, Shekhar Grover, Rajesh Kumar, Madhan Kumar, Gopal Krishna Ingle
BACKGROUND: Healthcare workers particularly doctors are at high risk of being victims of verbal and physical violence perpetrated by patients or their relatives. There is a paucity of studies on work-related violence against doctors in India. We aimed to assess the exposure of workplace violence among doctors, its consequences among those who experienced it and its perceived risk factors. METHODS: This study was done among doctors working in a tertiary care hospital in Delhi...
November 2016: National Medical Journal of India
https://www.readbyqxmd.com/read/28327462/neurocognitive-dysfunction-in-hiv-infected-youth-investigating-the-relationship-with-immune-activation
#8
Allison Ross Eckard, Julia C Rosebush, Mary Ann O'Riordan, Chanda C Graves, Ashley Alexander, Anita K Grover, S Thera Lee, Jakob G Habib, Joshua H Ruff, Ann Chahroudi, Grace A McComsey
BACKGROUND: HIV-infected individuals are at increased risk of neurocognitive impairment compared to the general population. Studies suggest that, despite combination antiretroviral therapy (cART), HIV infection causes immune activation which results in neural damage; however, few data exist in HIV-infected youth. METHODS: HIV-infected youth 8-26 years old on cART with virologic suppression were prospectively enrolled along with healthy controls. Neurocognitive performance was assessed by age-appropriate Wechsler Intelligence Scales...
March 22, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28326204/an-unusual-location-of-subungual-warty-dyskeratoma-a-case-report-and-review-of-the-literature
#9
Elena Vargas-Laguna, Adrián Imbernón-Moya, Antonio Aguilar-Martínez, Fernando Burgos
Warty dyskeratoma is an uncommon entity characterized by a solitary keratotic papule or nodule usually located in the head and neck of young adults. The histopathology shows a pattern of acantholytic dyskeratosis. We report a 32-year-old man who presented pain, serous exudation, a distal onycholysis with subungual hyperkeratosis, and roundish erythronychia in the nail plate of his left first toe 2 years ago. A histopathologic diagnosis of subungual warty dyskeratoma was made. When dealing with focal acantholytic dyskeratosis several differential diagnoses should be considered including Darier's disease, transient focal acantholytic dyskeratosis or Grover disease, and Hailey-Hailey disease...
2017: Case Reports in Dermatological Medicine
https://www.readbyqxmd.com/read/28325246/challenges-and-prospects-for-providing-radiation-oncology-services-in-africa
#10
REVIEW
Onyinye Balogun, Danielle Rodin, Wilfred Ngwa, Surbhi Grover, John Longo
There are considerable challenges to meeting the demands of the impending cancer crisis in Africa. These include a rising incidence of cancer and cancer-related deaths, equipment and maintenance costs, and deficits in human resources and training. Addressing these issues would be crucial to tackling the increasing burden of cancer on the continent. Innovations in technology and collaborative efforts within the global oncology community have created promising solutions for establishing quality cancer care in Africa and eradicating the massive disparities that currently exist...
April 2017: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/28325242/radiation-oncology-in-india-challenges-and-opportunities
#11
REVIEW
Surbhi Grover, Shivakumar Gudi, Ajeet Kumar Gandhi, Priya M Puri, Adam C Olson, Danielle Rodin, Onyi Balogun, Preet K Dhillon, Daya Nand Sharma, Goura Kishor Rath, Shyam Kishore Shrivastava, Akila N Viswanathan, Umesh Mahantshetty
Rising cancer incidence and mortality in India emphasize the need to address the increasing burden of this disease and the stark inequities in access to radiotherapy and other essential medical treatments. State-of-the-art technology is available within the private sector and a few hospitals in the public sector, but 75% of patients in the public sector in India do not have access to timely radiotherapy. This inequity in access to radiotherapy in the public sector is amplified in rural areas, where most of India׳s population lives...
April 2017: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/28325239/the-unique-issues-with-brachytherapy-in-low-and-middle-income-countries
#12
REVIEW
Surbhi Grover, John Longo, John Einck, Priya Puri, Derek Brown, Junzo Chino, Umesh Mahantshetty, Catheryn Yashar, Beth Erickson
Gynecologic carcinomas, including cervical cancer, present a significant burden on low- and middle-income countries (LMICs). Brachytherapy plays an integral role in the treatment of gynecologic carcinomas, as it is essential for both curative and palliative treatment. However, there are numerous geographic and economic barriers to providing brachytherapy to cancer patients in LMICs. This article examines the role and delivery of brachytherapy in gynecological cancer treatment; brachytherapy capacity in LMICs, including infrastructure, equipment, and human resources considerations; commissioning, training, and clinical implementation of brachytherapy in LMICs; other challenges, and strategies for improvement in brachytherapy delivery in LMICs, including innovation and current and upcoming international initiatives...
April 2017: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/28325237/global-health-in-radiation-oncology-the-emergence-of-a-new-career-pathway
#13
REVIEW
Danielle Rodin, Mei Ling Yap, Surbhi Grover, John M Longo, Onyinye Balogun, Sandra Turner, Jesper G Eriksen, C Norman Coleman, Meredith Giuliani
The massive global shortfall in radiotherapy equipment and human resources in developing countries is an enormous challenge for international efforts in cancer control. This lack of access to treatment has been long-standing, but there is now a growing consensus about the urgent need to prioritize solutions to this problem and that a global strategy is required for them to be successful. An essential element of making radiotherapy universally accessible is a coordinated approach to clinical training and practice...
April 2017: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/28323272/constipation-predominant-irritable-bowel-syndrome-females-have-normal-colonic-barrier-and-secretory-function
#14
Stephanie A Peters, Shoko Edogawa, Wendy J Sundt, Roy B Dyer, Daniel A Dalenberg, Amelia Mazzone, Ravinder J Singh, Natalie Moses, Thomas C Smyrk, Christopher Weber, David R Linden, Wallace K MacNaughton, Jerrold R Turner, Michael Camilleri, David A Katzka, Gianrico Farrugia, Madhusudan Grover
OBJECTIVES: The objective of this study was to determine whether constipation-predominant irritable bowel syndrome (IBS-C) is associated with changes in intestinal barrier and secretory function. METHODS: A total of 19 IBS-C patients and 18 healthy volunteers (all females) underwent saccharide excretion assay (0.1 g (13)C mannitol and 1 g lactulose), measurements of duodenal and colonic mucosal barrier (transmucosal resistance (TMR), macromolecular and Escherichia coli Bio-Particle translocation), mucosal secretion (basal and acetylcholine (Ach)-evoked short-circuit current (Isc)), in vivo duodenal mucosal impedance, circulating endotoxins, and colonic tight junction gene expression...
March 21, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28315621/scales-for-assessment-of-depression-in-schizophrenia-factor-analysis-of-calgary-depression-rating-scale-and-hamilton-depression-rating-scale
#15
Sandeep Grover, Swapnajeet Sahoo, Devakshi Dua, Subho Chakrabarti, Ajit Avasthi
This study aimed to evaluate the factor structure of Calgary depression rating scale (CDSS) and Hamilton Depression Rating Scale (HDRS) among patients with schizophrenia in acute and remission phase of illness by using exploratory factor analysis. For this, 267 patients with schizophrenia were assessed on CDSS and HDRS. Exploratory factor analysis of CDSS yielded 2 factor models for the whole sample, patients in clinical remission and patients not in clinical remission phase of schizophrenia. Factor analysis of HDRS yielded 3 factor models; however, there was significant difference in the factor structure between those in clinical remission and those not in clinical remission phase of schizophrenia...
March 9, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28306417/the-management-and-outcome-for-patients-with-chronic-subdural-hematoma-a-prospective-multicenter-observational-cohort-study-in-the-united-kingdom
#16
Paul M Brennan, Angelos G Kolias, Alexis J Joannides, Jonathan Shapey, Hani J Marcus, Barbara A Gregson, Patrick J Grover, Peter J Hutchinson, Ian C Coulter
OBJECTIVE Symptomatic chronic subdural hematoma (CSDH) will become an increasingly common presentation in neurosurgical practice as the population ages, but quality evidence is still lacking to guide the optimal management for these patients. The British Neurosurgical Trainee Research Collaborative (BNTRC) was established by neurosurgical trainees in 2012 to improve research by combining the efforts of trainees in each of the United Kingdom (UK) and Ireland's neurosurgical units (NSUs). The authors present the first study by the BNTRC that describes current management and outcomes for patients with CSDH throughout the UK and Ireland...
March 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28286788/primary-hepatic-amyloidosis-presenting-as-acute-on-chronic-liver-failure
#17
Madhumita Premkumar, Devaraja Rangegowda, Tanmay Vyas, Anand Kulkarni, Shrruti Grover, Rakhi Mahiwall, Shiv Kumar Sarin
Systemic amyloidosis of amyloid light chain associated protein (AL), also called primary amyloidosis, frequently involves the liver, but rarely causes clinically apparent liver disease. The more common presentation is with acute renal failure. Hepatomegaly and mild elevation of alkaline phosphatase are the most common clinical and biochemical findings, respectively. We report a case of systemic amyloidosis of AL that clinically presented as acute-on-chronic liver failure and resulted in a fatal clinical course in a 56-year-old man...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28285028/social-cognition-of-patients-with-schizophrenia-across-the-phases-of-illness-a-longitudinal-study
#18
Vijaya Lakshmi Valaparla, Ritu Nehra, Urvakhsh Meherwan Mehta, Jagadisha Thirthalli, Sandeep Grover
AIM: This longitudinal study aimed to evaluate social cognition of patients with schizophrenia at two points, i.e., during the symptomatic phase and clinical remission phase. Additional aim was to evaluate the relationship of social cognition with psychopathology and functional outcome. METHODOLOGY: Fifty-one patients (N=51) were evaluated on Social Cognition Rating Tools in Indian Setting (SOCRATIS), Positive and Negative Syndrome Scale (PANSS), Global Assessment of Functioning (GAF), Socio-occupational functioning scale (SOFS) and Indian Disability Evaluation and Assessment Scale (IDEAS) during the symptomatic phase of illness...
March 8, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28278495/antioxidant-supplements-and-gastrointestinal-diseases-a-critical-appraisal
#19
Islam Khan, Sue E Samson, Ashok Kumar Grover
The gastrointestinal tract digests and absorbs dietary nutrients; protects the body against physical and chemical damage from contents in its lumen; provides immunity against external antigens and keeps an optimum environment for the gut microbiota. These functions cannot be performed normally in several diseases of which the following are discussed here: irritable bowel syndrome, inflammatory bowel disease which includes Crohn's disease and ulcerative colitis. Because these diseases are associated with oxidative stress, a host of antioxidant supplements are used for maintenance and recovery of the gut functions...
March 8, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/28278357/factors-associated-with-the-health-and-cognition-of-6-8-year-old-children-in-kwazulu-natal-south-africa
#20
Oluwakemi R Ajayi, Glenda Matthews, Myra Taylor, Jane Kvalsvig, Leslie L Davidson, Shuaib Kauchali, Claude A Mellins
OBJECTIVE: To investigate 6-8 year-old children's health, nutritional status and cognitive development in a predominantly rural area of KwaZulu-Natal, South Africa. METHODS: Cohort study of 1383 children investigating the association of demographic variables (area of residence, sex, pre- school education, HIV status, height for age and haemoglobin level) and family variables (socioeconomic status, maternal and paternal level of education), with children's cognitive performance...
March 9, 2017: Tropical Medicine & International Health: TM & IH
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