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https://www.readbyqxmd.com/read/28529044/synthesis-and-anticancer-activity-of-novel-aza-artemisinin-derivatives
#1
Sampad Jana, Shabina Iram, Joice Thomas, Sandra Liekens, Wim Dehaen
Three series of aza-artemisinin derivatives were synthesized for studies of anticancer activity. The first series of compounds were prepared via copper(I)-catalyzed azide alkyne cycloaddition, so called "click reaction", starting from propargyl derivatives of 11-aza-artemisinin and various azides, whereas the second and third series of compounds were prepared by triazolization reaction starting from enolizable ketones and primary amines connected to artemisinin. In vitro studies of the 23 synthesized artemisinin derivatives unveiled that 9 compounds displayed antiproliferative activity in the low micromolar range, with 5d being the most promising compound showing 50% inhibition of Cem and HeLa cell growth at 0...
April 30, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28507387/multidisciplinary-approach-to-the-prenatal-diagnosis-and-post-natal-management-of-a-large-suprasellar-arachnoid-cyst-a-case-report
#2
Omar Irfan, Heera Nand Rathore, Sarfraz Karim, Shabina Ariff, Aneela Darbar
Arachnoid cysts are intra-arachnoid sacs filled with cerebrospinal fluid representing a rare occurence in neonates. We report the case of a suprasellar arachnoid cyst diagnosed prenatally at 21 weeks gestation on routine obstetric ultrasound. A cystic lesion was picked up incidentally at routine antenatal scan. The cyst was noted to be increasing in size over a series of radiological scans. The cyst was diagnosed as a suprasellar arachnoid cyst compressing the third ventricle and bilateral lateral ventricles...
May 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28407759/a-new-clinical-algorithm-scoring-for-management-of-suspected-foreign-body-aspiration-in-children
#3
Ibrahim A Janahi, Shabina Khan, Prem Chandra, Noora Al-Marri, Ammar Saadoon, Lolwa Al-Naimi, Maryam Al-Thani, William Greer
BACKGROUND: Foreign Body Aspiration (FBA) is a serious problem in children and delays in diagnosis and management can be devastating. The history is often vague, with subtle physical and chest radiograph abnormalities. This study aims to determine the indications for bronchoscopy in children with suspected FBA and evaluate the key clinical and statistically significant predictors of FBA, based on the patients' historical, physical and radiological findings at presentation. METHODS: This is a retrospective observational study, including patients who were admitted between January 2001 to January 2011 with suspected FBA...
April 13, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28401036/anomalous-origin-of-the-left-pulmonary-artery-hemi-truncus-arteriosus
#4
Ali Shabbir Hussain, Mariam Shakir, Shabina Ariff, Rehan Ali, Babar Hassan
Hemi-truncus arteriosus is a rare congenital cardiovascular malformation. It usually presents in infancy and leads to development of progressive pulmonary vascular disease, heart failure, and death. We report a case of hemi truncus arteriosus in a 12-day-old neonate who was successfully managed at our institute.
March 2017: APSP Journal of Case Reports
https://www.readbyqxmd.com/read/28368272/consensus-statement-of-the-indian-academy-of-pediatrics-on-evaluation-and-management-of-autism-spectrum-disorder
#5
Samir Dalwai, Shabina Ahmed, Vrajesh Udani, Nandini Mundkur, S S Kamath, M K C Nair
JUSTIFICATION: Autism Spectrum Disorder (ASD) is a clinically heterogenous condition with a wide range of etiological factors and causing significant public health burden. ASD poses a serious developmental disadvantage to the child in the form of poor schooling, social function and adult productivity. Thus, framing evidence-based national guidelines is a pressing need. PROCESS: The meeting on formulation of national consensus guidelines on neurodevelopmental disorders was organized by Indian Academy of Paediatrics in Mumbai on 18th and 19th December 2015...
May 15, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28319863/binding-affinity-and-adhesion-force-of-organophosphate-hydrolase-enzyme-with-soil-particles-related-to-the-isoelectric-point-of-the-enzyme
#6
Shah Md Asraful Islam, Shabina Yeasmin, Md Saiful Islam, Md Shariful Islam
The binding affinity of organophosphate hydrolase enzyme (OphB) with soil particles in relation to the isoelectric point (pI) was studied. Immobilization of OphB with soil particles was observed by confocal microscopy, Fourier transform infrared spectroscopy (FT-IR), and Atomic force microscopy (AFM). The calculated pI of OphB enzyme was increased from 8.69 to 8.89, 9.04 and 9.16 by the single, double and triple mutant of OphB enzyme, respectively through the replacement of negatively charged aspartate with positively charged histidine...
March 16, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28250568/severe-tardive-dystonia-on-low-dose-short-duration-exposure-to-atypical-antipsychotics-factors-explored
#7
Nilanjan C Chandra, Shabina A Sheth, Ritambhara Y Mehta, Kamlesh R Dave
Tardive dystonia (TD) is a serious side effect of antipsychotic medications, more with typical antipsychotics, that is potentially irreversible in affected patients. Studies show that newer atypical antipsychotics have a lower risk of TD. As a result, many clinicians may have developed a false sense of security when prescribing these medications. We report a case of 20-year-old male with hyperthymic temperament and borderline intellectual functioning, who developed severe TD after low dose short duration exposure to atypical antipsychotic risperidone and then olanzapine...
January 2017: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/28218680/application-of-the-triazolization-reaction-to-afford-dihydroartemisinin-derivatives-with-anti-hiv-activity
#8
Sampad Jana, Shabina Iram, Joice Thomas, Muhammad Qasim Hayat, Christophe Pannecouque, Wim Dehaen
Artemisinin and synthetic derivatives of dihydroartemisinin are known to possess various biological activities. Post-functionalization of dihydroartemisinin with triazole heterocycles has been proven to lead to enhanced therapeutic potential. By using our newly developed triazolization strategy, a library of unexplored fused and 1,5-disubstituted 1,2,3-triazole derivatives of dihydroartemisinin were synthesized in a single step. All these newly synthesized compounds were characterized and evaluated for their anti-HIV (Human Immunodeficiency Virus) potential in MT-4 cells...
February 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28056945/a-mixed-methods-study-to-assess-the-effectiveness-of-food-based-interventions-to-prevent-stunting-among-children-under-five-years-in-districts-thatta-and-sujawal-sindh-province-pakistan-study-protocol
#9
Sumra Kureishy, Gul Nawaz Khan, Shabina Arrif, Khizar Ashraf, Angela Cespedes, Muhammad Atif Habib, Imtiaz Hussain, Asmat Ullah, Ali Turab, Imran Ahmed, Shehla Zaidi, Sajid Bashir Soofi
BACKGROUND: Maternal and child malnutrition is widely prevalent in low and middle income countries. In Pakistan, widespread food insecurity and malnutrition are the main contributors to poor health, low survival rates and the loss of human capital development. The nutritional status trends among children exhibit a continuous deteriorating with rates of malnutrition exceeding the WHO critical threshold. With the high prevalence of maternal and child malnutrition, it is important to identify effective preventative approaches, especially for reducing stunting in children under-five years of age...
January 5, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28013190/mycobacterium-indicus-pranii-mw-mediated-protection-against-visceral-leishmaniasis-by-reciprocal-regulation-of-host-dual-specificity-phosphatases
#10
Shabina Parveen, Syamdas Bandhyopadhyay, Sonali Das, Suchandra Bhattacharyya Majumdar, Junaid Jibran Jawed, Bidisha Paul Chowdhury, Bhaskar Saha, Subrata Majumdar
Leishmania donovani resides within the host macrophages by dampening host defence mechanisms and thereby it modulates the host cell functions for its survival. Multiple host cell factors compete during the interplay between the host and the parasite. Roles for dual-specificity phosphatases (DUSPs) are implicated in various pathological conditions. However, the reciprocity of these DUSPs was unknown in L. donovani infection in a susceptible model. Here, we show that Mycobacterium indicus pranii (Mw), an immunomodulator, reciprocally regulates DUSP1 and DUSP6 through the TLR4 pathway...
December 2016: International Immunology
https://www.readbyqxmd.com/read/27930656/cross-sectional-associations-between-socio-demographic-factors-and-cognitive-performance-in-an-older-british-population-the-european-investigation-of-cancer-in-norfolk-epic-norfolk-study
#11
Shabina A Hayat, Robert Luben, Nichola Dalzell, Stephanie Moore, Serena Anuj, Fiona E Matthews, Nick Wareham, Carol Brayne, Kay-Tee Khaw
BACKGROUND: Cognition covers a range of abilities, such as memory, response time and language, with tests assessing either specific or generic aspects. However differences between measures may be observed within the same individuals. OBJECTIVE: To investigate the cross-sectional association of cognitive performance and socio-demographic factors using different assessment tools across a range of abilities in a British cohort study. METHODS: Participants of the European Prospective Investigation of Cancer (EPIC) in Norfolk Study, aged 48-92 years, underwent a cognitive assessment between 2006 and 2011 (piloted between 2004 and 2006) and were investigated over a different domains using a range of cognitive tests...
2016: PloS One
https://www.readbyqxmd.com/read/27865392/mycobacterium-indicus-pranii-mip-mediated-host-protective-intracellular-mechanisms-against-tuberculosis-infection-involvement-of-tlr-4-mediated-signaling
#12
Shibali Das, Bidisha Paul Chowdhury, Avranil Goswami, Shabina Parveen, Junaid Jawed, Nishith Pal, Subrata Majumdar
Mycobacterium tuberculosis infection inflicts the disease Tuberculosis (TB), which is fatal if left untreated. During M. tuberculosis infection, the pathogen modulates TLR-4 receptor down-stream signaling, indicating the possible involvement of TLR-4 in the regulation of the host immune response. Mycobacterium indicus pranii (MIP) possesses immuno-modulatory properties which induces the pro-inflammatory responses via induction of TLR-4-mediated signaling. Here, we observed the immunomodulatory properties of MIP against tuberculosis infection...
December 2016: Tuberculosis
https://www.readbyqxmd.com/read/27843165/neonatal-mortality-within-24%C3%A2-hours-of-birth-in-six-low-and-lower-middle-income-countries
#13
Abdullah H Baqui, Dipak K Mitra, Nazma Begum, Lisa Hurt, Seyi Soremekun, Karen Edmond, Betty Kirkwood, Nita Bhandari, Sunita Taneja, Sarmila Mazumder, Muhammad Imran Nisar, Fyezah Jehan, Muhammad Ilyas, Murtaza Ali, Imran Ahmed, Shabina Ariff, Sajid B Soofi, Sunil Sazawal, Usha Dhingra, Arup Dutta, Said M Ali, Shaali M Ame, Katherine Semrau, Fern M Hamomba, Caroline Grogan, Davidson H Hamer, Rajiv Bahl, Sachiyo Yoshida, Alexander Manu
OBJECTIVE: To estimate neonatal mortality, particularly within 24 hours of birth, in six low- and lower-middle-income countries. METHODS: We analysed epidemiological data on a total of 149 570 live births collected between 2007 and 2013 in six prospective randomized trials and a cohort study from predominantly rural areas of Bangladesh, Ghana, India, Pakistan, the United Republic of Tanzania and Zambia. The neonatal mortality rate and mortality within 24 hours of birth were estimated for all countries and mortality within 6 hours was estimated for four countries with available data...
October 1, 2016: Bulletin of the World Health Organization
https://www.readbyqxmd.com/read/27835979/pharmacologically-active-flavonoids-from-the-anticancer-antioxidant-and-antimicrobial-extracts-of-cassia-angustifolia-vahl
#14
Shabina Ishtiaq Ahmed, Muhammad Qasim Hayat, Muhammad Tahir, Qaisar Mansoor, Muhammad Ismail, Kristen Keck, Robert B Bates
BACKGROUND: Cassia angustifolia Vahl. (commonly known as senna makkai or cassia senna), native to Saudi Arabia, Egypt, Yemen and also extensively cultivated in Pakistan, is a medicinal herb used traditionally to cure number of diseases like liver diseases, constipation, typhoid, cholera etc. This study was conducted to evaluate the in-vitro antimicrobial, antioxidant and anticancer assays and phytochemical constituents of aqueous and organic extracts of C. angustifolia leaves. METHODS: The antimicrobial activities of C...
November 11, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27692271/daytime-napping-and-increased-risk-of-incident-respiratory-diseases-symptom-marker-or-risk-factor
#15
Yue Leng, Nick W J Wainwright, Francesco P Cappuccio, Paul G Surtees, Shabina Hayat, Robert Luben, Carol Brayne, Kay-Tee Khaw
BACKGROUND: We have identified a strong association between daytime napping and increased mortality risk from respiratory diseases, but little is known about the relationship between daytime napping and respiratory morbidity. METHODS: Data were drawn from the European Prospective Investigation into Cancer and Nutrition-Norfolk cohort. Participants reported napping habits during 1998-2000 and were followed up for respiratory disease hospital admissions until March 2009...
July 2016: Sleep Medicine
https://www.readbyqxmd.com/read/27668130/the-accuracy-and-reliability-of-crowdsource-annotations-of-digital-retinal-images
#16
Danny Mitry, Kris Zutis, Baljean Dhillon, Tunde Peto, Shabina Hayat, Kay-Tee Khaw, James E Morgan, Wendy Moncur, Emanuele Trucco, Paul J Foster
PURPOSE: Crowdsourcing is based on outsourcing computationally intensive tasks to numerous individuals in the online community who have no formal training. Our aim was to develop a novel online tool designed to facilitate large-scale annotation of digital retinal images, and to assess the accuracy of crowdsource grading using this tool, comparing it to expert classification. METHODS: We used 100 retinal fundus photograph images with predetermined disease criteria selected by two experts from a large cohort study...
September 2016: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/27551956/topical-beta-blockers-and-cardiovascular-mortality-systematic-review-and-meta-analysis-with-data-from-the-epic-norfolk-cohort-study
#17
Claude Pinnock, Jennifer L Y Yip, Anthony P Khawaja, Robert Luben, Shabina Hayat, David C Broadway, Paul J Foster, Kay-Tee Khaw, Nick Wareham
PURPOSE: To determine if topical beta-blocker use is associated with increased cardiovascular mortality, particularly among people with self-reported glaucoma. METHODS: All participants who participated in the first health check (N = 25,639) of the European Prospective Investigation into Cancer (EPIC) Norfolk cohort (1993-2013) were included in this prospective cohort study, with a median follow-up of 17.0 years. We determined use of topical beta-blockers at baseline through a self-reported questionnaire and prescription check at the first clinical visit...
October 2016: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/27524456/global-burden-epidemiologic-trends-and-prevention-of-intrapartum-related-deaths-in-low-resource-settings
#18
REVIEW
Shabina Ariff, Anne Cc Lee, Joy Lawn, Zulfiqar A Bhutta
Intrapartum-related neonatal deaths include live-born infants who die in the first 28 days of life from neonatal encephalopathy or die before onset of neonatal encephalopathy and have evidence of intrapartum injury. A smaller portion of the population in poorer countries has access to basic obstetric and postnatal care causing neonatal mortality rates to be higher. Presence of a skilled birth attendant and provision of basic emergency obstetric care can reduce intrapartum birth asphyxia by 40%. With the announcement of Sustainable Development Goals and global Every Newborn Action Plan, there is hope that interventions around continuum of care will save lives...
September 2016: Clinics in Perinatology
https://www.readbyqxmd.com/read/27471856/evaluation-of-the-uptake-and-impact-of-neonatal-vitamin-a-supplementation-delivered-through-the-lady-health-worker-programme-on-neonatal-and-infant-morbidity-and-mortality-in-rural-pakistan-an-effectiveness-trial
#19
RANDOMIZED CONTROLLED TRIAL
Sajid Soofi, Shabina Ariff, Kamran Sadiq, Atif Habib, Zaid Bhatti, Imran Ahmad, Masawar Hussain, Nabeela Ali, Simon Cousens, Zulfiqar A Bhutta
BACKGROUND: Despite evidence for the benefits of vitamin A supplementation (VAS) among children 6 to 59 months of age, the feasibility of introduction and potential benefit of VAS in the neonatal period in public health programmes is uncertain. OBJECTIVE: The primary objective was to evaluate the feasibility and effectiveness of early neonatal VAS (single dose of 50 000 international units within 48-72 hours after birth) delivered through the public sector Lady Health Worker (LHW) programme in rural Pakistan and to document its association with a reduction in mortality at 6 months of age...
March 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/27274332/physician-and-medical-student-perceptions-and-expectations-of-the-pediatric-clerkship-a-qatar-experience
#20
Mohamed A Hendaus, Shabina Khan, Samar Osman, Yasser Alsamman, Tushar Khanna, Ahmed H Alhammadi
BACKGROUND: The average number of clerkship weeks required for the pediatric core rotation by the US medical schools is significantly lower than those required for internal medicine or general surgery. OBJECTIVE: The objective behind conducting this survey study was to explore the perceptions and expectations of medical students and pediatric physicians about the third-year pediatric clerkship. METHODS: An anonymous survey questionnaire was distributed to all general pediatric physicians at Hamad Medical Corporation and to students from Weill Cornell Medical College-Qatar...
2016: Advances in Medical Education and Practice
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