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Sandini TM, Onofrychuk TJ, Roebuck AJ, Hammond SA, Udenze D, Hayat S, Herdzik MA, McElroy DL, Orvold SN, Greba Q, Laprairie RB, Howland JG. Repeated Exposure to High-THC Cannabis Smoke during Gestation Alters Sex Ratio, Behavior, and Amygdala Gene Expression of Sprague Dawley Rat Offspring. eNeuro 2023; 10:ENEURO.0100-23.2023. [PMID: 37957008 PMCID: PMC10687874 DOI: 10.1523/eneuro.0100-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 10/24/2023] [Accepted: 10/30/2023] [Indexed: 11/21/2023] Open
Abstract
Because of the legalization of Cannabis in many jurisdictions and the trend of increasing Δ9-tetrahydrocannabinol (THC) content in Cannabis products, an urgent need exists to understand the impact of Cannabis use during pregnancy on fetal neurodevelopment and behavior. To this end, we exposed female Sprague Dawley rats to Cannabis smoke daily from gestational day 6 to 20 or room air. Maternal reproductive parameters, offspring behavior, and gene expression in the offspring amygdala were assessed. Body temperature was decreased in dams following smoke exposure and more fecal boli were observed in the chambers before and after smoke exposure in dams exposed to smoke. Maternal weight gain, food intake, gestational length, litter number, and litter weight were not altered by exposure to Cannabis smoke. A significant increase in the male-to-female ratio was noted in the Cannabis-exposed litters. In adulthood, male and female Cannabis smoke-exposed offspring explored the inner zone of an open field significantly less than control offspring. Gestational Cannabis smoke exposure did not affect behavior on the elevated plus maze test or social interaction test in the offspring. Cannabis offspring were better at visual pairwise discrimination and reversal learning tasks conducted in touchscreen-equipped operant conditioning chambers. Analysis of gene expression in the adult amygdala using RNA sequencing revealed subtle changes in genes related to development, cellular function, and nervous system disease in a subset of the male offspring. These results demonstrate that repeated exposure to high-THC Cannabis smoke during gestation alters maternal physiological parameters, sex ratio, and anxiety-like behaviors in the adulthood offspring.
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Affiliation(s)
- Thaisa M Sandini
- Department of Anatomy, Physiology, and Pharmacology, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Timothy J Onofrychuk
- Department of Anatomy, Physiology, and Pharmacology, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Andrew J Roebuck
- Department of Anatomy, Physiology, and Pharmacology, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
- School of Liberal Arts, Yukon University, Whitehorse, Yukon Territory Y1A 5K4, Canada
| | - S Austin Hammond
- Global Institute for Food Security, Saskatoon, Saskatchewan S7N 4L8, Canada
| | - Daniel Udenze
- Next Generation Sequencing Facility, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Shahina Hayat
- Deparment of Oncology, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Melissa A Herdzik
- Department of Anatomy, Physiology, and Pharmacology, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Dan L McElroy
- Department of Anatomy, Physiology, and Pharmacology, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Spencer N Orvold
- Department of Anatomy, Physiology, and Pharmacology, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Quentin Greba
- Department of Anatomy, Physiology, and Pharmacology, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Robert B Laprairie
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - John G Howland
- Department of Anatomy, Physiology, and Pharmacology, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
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Lobo G, Rivers L, Reeves D, Shah S, Quinet R, Davis W, Zakem J, Keshavamurthy C, Hayat S, Harris T, You Z, Zhang X. High fat diet in lupus: gender differences in skin lesion, nephritis, and autoimmunity in MRL/lpr mice. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00529-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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3
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Ikram M, Shahzadi A, Hayat S, Nabgan W, Ul-Hamid A, Haider A, Noor M, Goumri-Said S, Kanoun MB, Ali S. Novel Ta/chitosan-doped CuO nanorods for catalytic purification of industrial wastewater and antimicrobial applications. RSC Adv 2022; 12:16991-17004. [PMID: 35755577 PMCID: PMC9172551 DOI: 10.1039/d2ra03006c] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 05/30/2022] [Indexed: 02/05/2023] Open
Abstract
Novel tantalum (Ta) and chitosan (CS)-doped CuO nanorods (NRs) were synthesized using a single step co-precipitation route. Different concentrations (2 and 4%) of Ta were used in fixed amounts of CS and CuO to examine their catalytic activity and antimicrobial potential. For critical analysis, synthesized NRs were systematically examined using XRD, FTIR HRTEM, EDS, UV-Vis and PL spectroscopy. The XRD technique revealed the monoclinic structure of CuO while an increase in its crystallite size (from 15.5 to 18.5 nm) was observed upon doping. FTIR spectra were examined to study the functional groups of CuO where peaks at 514 cm-1 and 603 cm-1 confirmed the formation of CuO NRs. PL spectra depicted the charge transfer efficiency of the synthesized samples. The presence of dopants (Ta and CS) and constituent elements (Cu, O) was detected using EDS spectra. Additionally, the pH based catalytic performance of fabricated NRs revealed 99.7% dye degradation of toxic methylene blue (MB) dye in neutral media, 99.4% in basic media and 99.5% in acidic media along with promising antibacterial activities for Gram negative/positive bacteria, respectively upon doping of Ta (4%) into CS/CuO. The adsorption energies of CuO co-doped with CS/Ta led to the creation of stable structures that were investigated theoretically using density functional theory.
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Affiliation(s)
- M Ikram
- Solar Cell Application Research Lab, Department of Physics, Government College University Lahore Lahore 54000 Punjab Pakistan
| | - A Shahzadi
- Faculty of Pharmacy, The University of Lahore Lahore 54000 Pakistan
| | - S Hayat
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - W Nabgan
- Departament d'Enginyeria Química, Universitat Rovira i Virgili Av Països Catalans 26 43007 Tarragona Spain
| | - A Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| | - A Haider
- Department of Clinical Sciences, Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture Multan 66000 Pakistan
| | - M Noor
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - Souraya Goumri-Said
- College of Science, Physics Department, Alfaisal University P. O. Box 50927 Riyadh 11533 Saudi Arabia
| | - Mohammed Benali Kanoun
- Department of Physics, College of Science, King Faisal University P. O. Box 400 Al-Ahsa 31982 Saudi Arabia
| | - S Ali
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
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Naeem H, Naqvi SZH, Hussain J, Abbas N, Hayat S, Arshad L, Ghayas A, Rehman A. Efficacy of Tulsi (Ocimum Sanctum) Plant Powder on Health, Growth and Carcass Traits of Japanese Quail (Coturnix Japonica). Braz J Poult Sci 2022. [DOI: 10.1590/1806-9061-2021-1453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- H Naeem
- University of Lahore, Pakistan
| | | | - J Hussain
- University of Veterinary and Animal Sciences, Pakistan
| | - N Abbas
- Government Graduate College District Jhang Pakistan, Pakistan
| | - S Hayat
- University of Lahore, Pakistan
| | | | - A Ghayas
- University of Veterinary and Animal Sciences, Pakistan
| | - A Rehman
- University of Veterinary and Animal Sciences, Pakistan
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Chaudhary A, Akram AM, Ahmad QUA, Hussain Z, Zahra S, Minahal Q, Azhar S, Ahmad S, Hayat S, Javed MA, Haider MS, Ali Q, Karita S. Optimized biotransformation of acid-treated water melon peel hydrolyzate into ethanol. BRAZ J BIOL 2021; 83:e253009. [PMID: 34495170 DOI: 10.1590/1519-6984.253009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 07/08/2021] [Indexed: 11/22/2022] Open
Abstract
Today, global focus of research is to explore the solution of energy crisis and environmental pollution. Like other agricultural countries, bulk quantities of watermelon peels (WMP) are disposed-off in environment as waste in Pakistan and appropriate management of this waste is the need of hour to save environment from pollution. The work emphasizes the role of ethanologenic yeasts to utilize significant sugars present in WMP for low-cost bioethanol fermentation. Dilute hydrochloric acid hydrolysis of WMP was carried out on optimized conditions employing RSM (response surface methodology) following central composite design (CCD). This experimental design is based on optimization of ethanologenesis involving some key independent parameters such as WMP hydrolysate and synthetic media ratio (X1), incubation temperature (X2) and incubation temperature (X3) for maximal ethanol yield exploiting standard (Saccharomyces cerevisiae K7) as well as experimental (Metchnikowia cibodasensisY34) yeasts. The results revealed that maximal ethanol yields obtained from S. cerevisiae K7 was 0.36±0.02 g/g of reducing sugars whereas M. cibodasensisY34, yielded 0.40±0.01 g ethanol/g of reducing sugars. The yeast isolate M. cibodasensisY34 appeared as promising ethanologen and embodies prospective potential for fermentative valorization of WMP-to-bioethanol.
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Affiliation(s)
- A Chaudhary
- University of Education, Department of Zoology, Division of Science and Technology, Lahore, Pakistan
| | - A M Akram
- University of Education, Department of Zoology, Division of Science and Technology, Lahore, Pakistan
| | - Qurat-Ul-Ain Ahmad
- University of Education, Department of Zoology, Division of Science and Technology, Lahore, Pakistan
| | - Z Hussain
- University of Education, Department of Zoology, Division of Science and Technology, Lahore, Pakistan
| | - S Zahra
- University of Education, Department of Physics, Division of Science and Technology, Lahore, Pakistan
| | - Q Minahal
- University of Education, Department of Zoology, Division of Science and Technology, Lahore, Pakistan
| | - S Azhar
- University of the Punjab, Institute of Zoology, Lahore, Pakistan
| | - S Ahmad
- University of the Punjab Lahore, Department of Entomology, Lahore, Pakistan
| | - S Hayat
- The University of Lahore, Institute of Molecular Biology and Biotechnology, Lahore, Pakistan
| | - M A Javed
- University of the Punjab Lahore, Department of Plant Breeding and Genetics, Lahore, Pakistan
| | - M S Haider
- University of the Punjab Lahore, Department of Plant Pathology, Lahore, Pakistan
| | - Q Ali
- The University of Lahore, Institute of Molecular Biology and Biotechnology, Lahore, Pakistan
| | - S Karita
- Mie University, Graduate School of Bioresources, Tsu city, Mie, Japan
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Aslam N, Hayat S, Ali T, Waseem M, Siddique MH, Afzal M, Muzammil A, Naz G, Sarwar A, Muzammil S. Antiadhesion and antibiofilm potential of Fagonia indica from Cholistan desert against clinical multidrug resistant bacteria. BRAZ J BIOL 2021; 82:e239991. [PMID: 34190801 DOI: 10.1590/1519-6984.239991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 11/05/2020] [Indexed: 11/22/2022] Open
Abstract
High resistance to antimicrobials is associated with biofilm formation responsible for infectious microbes to withstand severe conditions. Therefore, new alternatives are necessary as biofilm inhibitors to control infections. In this study, the antimicrobial and antibiofilm activities of Fagonia indica extracts were evaluated against MDR clinical isolates. The extract exhibited its antibiofilm effect by altering adherence and disintegration of bacterial cell wall. Fagonia indica has antibacterial effect as minimum inhibitory concentration (MIC) values ranging from 125 to 500 µg mL-1 and minimum bactericidal concentration (MBC) value was 500-3000 µg mL-1 against multidrug resistant (MDR) clinical isolates. The extract exhibited its antibiofilm effect by altering adherence and disintegration of bacterial cell wall. Fagonia indica had antibacterial effect as minimum inhibitory concentration (MIC) values ranging from 125 to 500 µg mL-1 and minimum bactericidal concentration (MBC) value was 500-3000 µg mL-1 against MDR isolates. The maximum inhibitory effects of Fagonia indica chloroform extract on biofilm formation was observed on Staphylococcus aureus (71.84%) followed by Klebsiella pneumoniae (70.83%) after 48 hrs showing that inhibition is also time dependent. Our results about bacterial cell protein leakage indicated that MDR isolates treated with chloroform extract of Fagonia indica showed maximum protein leakage of K. pneumoniae (59.14 µg mL-1) followed by S. aureus (56.7 µg mL-1). Cell attachment assays indicated that chloroform extract resulted in a 43.5-53.5% inhibition of cell adherence to a polystyrene surface. Our results revealed that extracts of Fagonia indica significantly inhibited biofilm formation among MDR clinical isolates, therefore, could be applied as antimicrobial agents and cost effective biofilm inhibitor against these MDR isolates.
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Affiliation(s)
- N Aslam
- Government College University, Department of Biochemistry, Faisalabad, Pakistan
| | - S Hayat
- Government College University, Department of Microbiology, Faisalabad, Pakistan
| | - T Ali
- Government College University, Department of Biochemistry, Faisalabad, Pakistan.,University of Agriculture, Department of Biochemistry, Faisalabad, Pakistan
| | - M Waseem
- Government College University, Department of Microbiology, Faisalabad, Pakistan
| | - M H Siddique
- Government College University, Department of Bioinformatics and Biotechnology, Faisalabad, Pakistan
| | - M Afzal
- Government College University, Department of Bioinformatics and Biotechnology, Faisalabad, Pakistan
| | - A Muzammil
- Government College University, Department of Bioinformatics and Biotechnology, Faisalabad, Pakistan
| | - G Naz
- Government College University, Department of Microbiology, Faisalabad, Pakistan
| | - A Sarwar
- Government College University, Department of Microbiology, Faisalabad, Pakistan
| | - S Muzammil
- Government College University, Department of Microbiology, Faisalabad, Pakistan
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Ikram M, Hayat S, Imran M, Haider A, Naz S, Ul-Hamid A, Shahzadi I, Haider J, Shahzadi A, Nabgan W, Ali S. Novel Ag/cellulose-doped CeO 2 quantum dots for efficient dye degradation and bactericidal activity with molecular docking study. Carbohydr Polym 2021; 269:118346. [PMID: 34294353 DOI: 10.1016/j.carbpol.2021.118346] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/10/2021] [Accepted: 06/12/2021] [Indexed: 02/08/2023]
Abstract
In the present study, the novel Ag/cellulose nanocrystal (CNC)-doped CeO2 quantum dots (QDs) with highly efficient catalytic performance were synthesized using one pot co-precipitation technique, which were then applied in the degradation of methylene blue and ciprofloxacin (MBCF) in wastewater. Catalytic activity against MBCF dye was significantly reduced (99.3%) for (4%) Ag dopant concentration in acidic medium. For Ag/CNC-doped CeO2 vast inhibition domain of G-ve was significantly confirmed as (5.25-11.70 mm) and (7.15-13.60 mm), while medium- to high-concentration of CNC levels were calculated for G + ve (0.95 nm, 1.65 mm), respectively. Overall, (4%) Ag/CNC-doped CeO2 revealed significant antimicrobial activity against G-ve relative to G + ve at both concentrations, respectively. Furthermore, in silico molecular docking studies were performed against selected enzyme targets dihydrofolate reductase (DHFR), dihydropteroate synthase (DHPS), and DNA gyrase belonging to folate and nucleic acid biosynthetic pathway, respectively to rationalize possible mechanism behind bactericidal potential of CNC-CeO2 and Ag/CNC-CeO2.
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Affiliation(s)
- M Ikram
- Solar Cell Application Research Lab, Department of Physics, Government College University Lahore, Lahore 54000, Punjab, Pakistan.
| | - S Hayat
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - M Imran
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing Engineering Centre for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing 100029, China
| | - A Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan
| | - S Naz
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - A Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia.
| | - I Shahzadi
- College of Pharmacy, University of the Punjab, 54000 Lahore, Pakistan
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - A Shahzadi
- College of Pharmacy, University of the Punjab, 54000 Lahore, Pakistan
| | - W Nabgan
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
| | - S Ali
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
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Ikram M, Inayat T, Haider A, Ul-Hamid A, Haider J, Nabgan W, Saeed A, Shahbaz A, Hayat S, Ul-Ain K, Butt AR. Graphene Oxide-Doped MgO Nanostructures for Highly Efficient Dye Degradation and Bactericidal Action. Nanoscale Res Lett 2021; 16:56. [PMID: 33825981 PMCID: PMC8026802 DOI: 10.1186/s11671-021-03516-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 03/24/2021] [Indexed: 05/30/2023]
Abstract
Various concentrations (0.01, 0.03 and 0.05 wt ratios) of graphene oxide (GO) nanosheets were doped into magnesium oxide (MgO) nanostructures using chemical precipitation technique. The objective was to study the effect of GO dopant concentrations on the catalytic and antibacterial behavior of fixed amount of MgO. XRD technique revealed cubic phase of MgO, while its crystalline nature was confirmed through SAED profiles. Functional groups presence and Mg-O (443 cm-1) in fingerprint region was evident with FTIR spectroscopy. Optical properties were recorded via UV-visible spectroscopy with redshift pointing to a decrease in band gap energy from 5.0 to 4.8 eV upon doping. Electron-hole recombination behavior was examined through photoluminescence (PL) spectroscopy. Raman spectra exhibited D band (1338 cm-1) and G band (1598 cm-1) evident to GO doping. Formation of nanostructure with cubic and hexagon morphology was confirmed with TEM, whereas interlayer average d-spacing of 0.23 nm was assessed using HR-TEM. Dopants existence and evaluation of elemental constitution Mg, O were corroborated using EDS technique. Catalytic activity against methyl blue ciprofloxacin (MBCF) was significantly reduced (45%) for higher GO dopant concentration (0.05), whereas bactericidal activity of MgO against E. coli was improved significantly (4.85 mm inhibition zone) upon doping with higher concentration (0.05) of GO, owing to the formation of nanorods.
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Affiliation(s)
- M Ikram
- Solar Cell Application Research Lab, Department of Physics, Government College University Lahore, Lahore, 54000, Punjab, Pakistan.
| | - T Inayat
- Physics Department, Lahore Garrison University, Lahore, 54000, Punjab, Pakistan
| | - A Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore, 54000, Punjab, Pakistan
| | - A Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - W Nabgan
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - A Saeed
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - A Shahbaz
- Department of Physics, Government College University Lahore, 54000, Lahore, Pakistan
| | - S Hayat
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - K Ul-Ain
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - A R Butt
- Physics Department, Lahore Garrison University, Lahore, 54000, Punjab, Pakistan
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Madani AY, Majeed Y, Abdesselem HB, Agha MV, Vakayil M, Sukhun NKA, Halabi NM, Kumar P, Hayat S, Elrayess MA, Rafii A, Suhre K, Mazloum NA. Signal Transducer and Activator of Transcription 3 (STAT3) Suppresses STAT1/Interferon Signaling Pathway and Inflammation in Senescent Preadipocytes. Antioxidants (Basel) 2021; 10:antiox10020334. [PMID: 33672392 PMCID: PMC7927067 DOI: 10.3390/antiox10020334] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 02/13/2021] [Accepted: 02/16/2021] [Indexed: 12/20/2022] Open
Abstract
Obesity promotes premature aging and dysfunction of white adipose tissue (WAT) through the accumulation of cellular senescence. The senescent cells burden in WAT has been linked to inflammation, insulin-resistance (IR), and type 2 diabetes (T2D). There is limited knowledge about molecular mechanisms that sustain inflammation in obese states. Here, we describe a robust and physiologically relevant in vitro system to trigger senescence in mouse 3T3-L1 preadipocytes. By employing transcriptomics analyses, we discovered up-regulation of key pro-inflammatory molecules and activation of interferon/signal transducer and activator of transcription (STAT)1/3 signaling in senescent preadipocytes, and expression of downstream targets was induced in epididymal WAT of obese mice, and obese human adipose tissue. To test the relevance of STAT1/3 signaling to preadipocyte senescence, we used Clustered Regularly Interspaced Short Palindromic Repeats/CRISPR associated protein 9 (CRISPR/Cas9) technology to delete STAT1/3 and discovered that STAT1 promoted growth arrest and cooperated with cyclic Guanosine Monophosphate-Adenosine Monophosphate (GMP-AMP) synthase-stimulator of interferon genes (cGAS-STING) to drive the expression of interferon β (IFNβ), C-X-C motif chemokine ligand 10 (CXCL10), and interferon signaling-related genes. In contrast, we discovered that STAT3 was a negative regulator of STAT1/cGAS-STING signaling-it suppressed senescence and inflammation. These data provide insights into how STAT1/STAT3 signaling coordinates senescence and inflammation through functional interactions with the cGAS/STING pathway.
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Affiliation(s)
- Aisha Y. Madani
- College of Health & Life Sciences, Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar; (A.Y.M.); (M.V.)
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (Y.M.); (N.K.A.S.)
| | - Yasser Majeed
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (Y.M.); (N.K.A.S.)
| | - Houari B. Abdesselem
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar;
| | - Maha V. Agha
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar;
| | - Muneera Vakayil
- College of Health & Life Sciences, Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar; (A.Y.M.); (M.V.)
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (Y.M.); (N.K.A.S.)
| | - Nour K. Al Sukhun
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (Y.M.); (N.K.A.S.)
| | - Najeeb M. Halabi
- Department of Genetic Medicine, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (N.M.H.); (A.R.)
| | | | - Shahina Hayat
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (S.H.); (K.S.)
| | | | - Arash Rafii
- Department of Genetic Medicine, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (N.M.H.); (A.R.)
| | - Karsten Suhre
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (S.H.); (K.S.)
| | - Nayef A. Mazloum
- Department of Microbiology and Immunology, Weill Cornell Medicine-Qatar (WCM-Q), Qatar Foundation, Doha 24144, Qatar; (Y.M.); (N.K.A.S.)
- Correspondence:
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Butler AE, Hayat S, Dargham SR, Malek JA, Abdullah SA, Mahmoud YA, Sathyapalan T, Atkin SL. Long non-coding RNA expression in non-obese women with polycystic ovary syndrome and weight-matched controls. Reprod Biomed Online 2020; 41:579-583. [PMID: 32819839 DOI: 10.1016/j.rbmo.2020.06.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/24/2020] [Accepted: 06/25/2020] [Indexed: 12/31/2022]
Abstract
RESEARCH QUESTION Long non-coding RNA (lncRNA) do not show protein translation but do have gene regulatory functions in several disease states. Studies have shown that lncRNA differ in overweight women with polycystic ovary syndrome (PCOS), increased insulin resistance and hyperandrogenaemia. The objective of this study was to determine the lncRNA in serum in age- and weight-matched non-obese women with and without PCOS. METHODS In this prospective pilot cohort study, lncRNA were measured in serum in 13 non-obese women with PCOS and 10 control women undergoing IVF. RESULTS There was no difference between groups in terms of age, body mass index or insulin resistance. Women with PCOS showed a higher free androgen index (FAI; P = 0.03) and anti-Müllerian hormone (AMH) concentration (P = 0.001). A total of 29 lncRNA (P ≤ 0.05) differed between PCOS groups. lncRNA AC095350.1 correlated with age (r = 0.79, P = 0.04), but no correlation was seen between the significantly different lncRNA and FAI or AMH values. Functional pathway assessment using the Ingenuity Pathway Assessment tool showed no relationships for the lncRNA. CONCLUSION lncRNA in serum differed between non-obese women with PCOS and the control group, and the pattern of expression differed from that reported in obese women with PCOS from the same ethnic population; however, it but did not correlate with androgen or insulin resistance.
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Affiliation(s)
- Alexandra E Butler
- Diabetes Research Center (DRC), Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), Doha, Qatar.
| | | | | | - Joel A Malek
- Weill Cornell Medical College in Qatar, Doha, Qatar
| | | | | | - Thozhukat Sathyapalan
- Academic Diabetes and Endocrinology, Hull York Medical School, University of Hull, Hull, UK
| | - Stephen L Atkin
- Royal College of Surgeons in Ireland-Bahrain, Busaiteen, Bahrain
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Al-Herz A, Sultan A, Almahmeed A, Saleh K, Al-Awadhi A, Al-Kandari W, Hasan E, Ghanem A, Hussain M, Ali Y, Nahar E, Alenizi A, Hayat S, Abutiban F, Aledei A, Al-Qadhi A, Alhajeri H, Behbehani H, Alhadhood N, Alsaber A. AB0176 RISK OF ANTI-CITRULLINATED PEPTIDE ANTIBODIES AND RHEUMATOID FACTOR IN MALE SMOKERS: DATA FROM KUWAIT REGISTRY FOR RHEUMATIC DISEASES (KRRD). Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.6388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Smoking has been proposed to be associated with the development of anti-citrullinated peptide antibodies (ACPA) in rheumatoid arthritis (RA) patients.Objectives:To study the relationship between smoking and ACPA as well as smoking and RF in patients with RA in Kuwait Registry for Rheumatic Diseases (KRRD).Methods:Data on RA patients were extracted from KRRD from four major hospitals from February 2013 through December 2019. As females rarely smoke in Kuwait with a smoking prevalence of 3% in female RA patients in KRRD, females were excluded from the study population to reach the minimum statistical percentage needed to perform chi square test and assess the association between smoking and other variables. Statistical tests were applied where appropriate. Logistic regression was conducted to adjust for possible confounders including age, disease duration, comorbidities, family history of a rheumatic disease, ANA, treatment agents and disease activity and quality of life assessment tools.Results:A total of 863 RA male patients were studied with a mean age of 53.9±12.5 years and a mean disease duration 7.3±5.5 years. 652 (75.6%) had positive RF and 624 (72.3%) had positive ACPA. 431 (50%) had at least one comorbidity. 640 (74.2%) were on conventional disease modifying agents (cDMARD’s) and 223 (25.8%) were on biologic therapy. 183 (21.2%) were smokers. After adjustment of other factors, logistic regression showed that smokers were significantly different than non-smokers in terms of a positive ACPA (β=-1.051,p<0.001, odds=4.019) and a positive RF (β=-0.804,p=0.019, odds=2.517).Conclusion:Smokers have a higher risk of expressing a positive RF and a positive ACPA in a male population. Smoking should be considered as a possible risk factor for RA and efforts should be done to educate the population to cease smoking to possibly lower that risk.References:[1]Benowitz, N.L., 2009. Pharmacology of nicotine: addiction, smoking-induced disease, and therapeutics. Annual review of pharmacology and toxicology, 49, pp.57-71.[2]Firestein, G.S., 2003. Evolving concepts of rheumatoid arthritis. Nature, 423(6937), p.356.[3]Heliövaara, M., Aho, K., Aromaa, A., Knekt, P. and Reunanen, A., 1993. Smoking and risk of rheumatoid arthritis. The Journal of rheumatology, 20(11), pp.1830-1835.[4]Hoy, K. W., 2009. Quantitative Research in Education: A Primer. SAGE. pp. 69-86.[5]Kerlan-Candon, S., Combe, B., Vincent, R., Clot, J., Pinet, V. and Eliaou, J.F., 2001. HLA-DRB1 gene transcripts in rheumatoid arthritis. Clinical & Experimental Immunology, 124(1), pp.142-149.[6]Kuada, J., 2012. Research Methodology: A Project Guide for University Students. Samfundslitteratur. pp. 45-56.[7]Kumar, R., 2010. Research Methodology: A Step-by-Step Guide for Beginners. SAGE. pp. 148-159.[8]Masdottir, B., Jonsson, T., Manfreðsdóttir, V., Víkingsson, A., Brekkan, Á. and Valdimarsson, H., 2000. Smoking, rheumatoid factor isotypes and severity of rheumatoid arthritis. Rheumatology, 39(11), pp.1202-1205.[9]Neuman, W., 2009. Understanding research. Boston: Pearson. pp. 230- 255.Disclosure of Interests:None declared
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Alsaber A, Al-Herz A, Pan J, Saleh K, Al-Awadhi A, Al-Kandari W, Hasan E, Ghanem A, Hussain M, Ali Y, Nahar E, Alenizi A, Hayat S, Abutiban F, Aledei A, Al-Qadhi A, Alhajeri H, Behbehani H, Alhadhood N. THU0556 MISSING DATA AND MULTIPLE IMPUTATION IN RHEUMATOID ARTHRITIS REGISTRIES USING SEQUENTIAL RANDOM FOREST METHOD. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.4838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Missing data in clinical epidemiological researches violate the intention to treat principle,reduce statistical power and can induce bias if they are related to patient’s response to treatment. In multiple imputation (MI), covariates are included in the imputation equation to predict the values of missing data.Objectives:To find the best approach to estimate and impute the missing values in Kuwait Registry for Rheumatic Diseases (KRRD) patients data.Methods:A number of methods were implemented for dealing with missing data. These includedMultivariate imputation by chained equations(MICE),K-Nearest Neighbors(KNN),Bayesian Principal Component Analysis(BPCA),EM with Bootstrapping(Amelia II),Sequential Random Forest(MissForest) and mean imputation. Choosing the best imputation method wasjudged by the minimum scores ofRoot Mean Square Error(RMSE),Mean Absolute Error(MAE) andKolmogorov–Smirnov D test statistic(KS) between the imputed datapoints and the original datapoints that were subsequently sat to missing.Results:A total of 1,685 rheumatoid arthritis (RA) patients and 10,613 hospital visits were included in the registry. Among them, we found a number of variables that had missing values exceeding 5% of the total values. These included duration of RA (13.0%), smoking history (26.3%), rheumatoid factor (7.93%), anti-citrullinated peptide antibodies (20.5%), anti-nuclear antibodies (20.4%), sicca symptoms (19.2%), family history of a rheumatic disease (28.5%), steroid therapy (5.94%), ESR (5.16%), CRP (22.9%) and SDAI (38.0%), The results showed that among the methods used, MissForest gave the highest level of accuracy to estimate the missing values. It had the least imputation errors for both continuous and categorical variables at each frequency of missingness and it had the smallest prediction differences when the models used imputed laboratory values. In both data sets, MICE had the second least imputation errors and prediction differences, followed by KNN and mean imputation.Conclusion:MissForest is a highly accurate method of imputation for missing data in KRRD and outperforms other common imputation techniques in terms of imputation error and maintenance of predictive ability with imputed values in clinical predictive models. This approach can be used in registries to improve the accuracy of data, including the ones for rheumatoid arthritis patients.References:[1]Junninen, H.; Niska, H.; Tuppurainen, K.; Ruuskanen, J.; Kolehmainen, M. Methods for imputation ofmissing values in air quality data sets.Atmospheric Environment2004,38, 2895–2907.[2]Norazian, M.N.; Shukri, Y.A.; Azam, R.N.; Al Bakri, A.M.M. Estimation of missing values in air pollutiondata using single imputation techniques.ScienceAsia2008,34, 341–345.[3]Plaia, A.; Bondi, A. Single imputation method of missing values in environmental pollution data sets.Atmospheric Environment2006,40, 7316–7330.[4]Kabir, G.; Tesfamariam, S.; Hemsing, J.; Sadiq, R. Handling incomplete and missing data in water networkdatabase using imputation methods.Sustainable and Resilient Infrastructure2019, pp. 1–13.[5]Di Zio, M.; Guarnera, U.; Luzi, O. Imputation through finite Gaussian mixture models.ComputationalStatistics & Data Analysis2007,51, 5305–5316.Disclosure of Interests:None declared
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Butler AE, Ramachandran V, Sathyapalan T, David R, Gooderham NJ, Benurwar M, Dargham SR, Hayat S, Hani Najafi-Shoushtari S, Atkin SL. Corrigendum: microRNA Expression in Women With and Without Polycystic Ovarian Syndrome Matched for Body Mass Index. Front Endocrinol (Lausanne) 2020; 11:515. [PMID: 32849299 PMCID: PMC7406910 DOI: 10.3389/fendo.2020.00515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 06/26/2020] [Indexed: 11/13/2022] Open
Abstract
[This corrects the article DOI: 10.3389/fendo.2020.00206.].
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Affiliation(s)
- Alexandra E. Butler
- Diabetes Research Center (DRC), Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), Doha, Qatar
- *Correspondence: Alexandra E. Butler ;
| | - Vimal Ramachandran
- Division of Research, Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, Doha, Qatar
| | - Thozhukat Sathyapalan
- Academic Diabetes, Endocrinology and Metabolism, Hull York Medical School, University of Hull, Hull, United Kingdom
| | - Rhiannon David
- Department of Surgery & Cancer, Faculty of Medicine, Imperial College, London, United Kingdom
| | - Nigel J. Gooderham
- Department of Surgery & Cancer, Faculty of Medicine, Imperial College, London, United Kingdom
| | - Manasi Benurwar
- Division of Research, Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, Doha, Qatar
| | - Soha R. Dargham
- Division of Research, Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, Doha, Qatar
| | - Shahina Hayat
- Division of Research, Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, Doha, Qatar
| | - S. Hani Najafi-Shoushtari
- Division of Research, Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, Doha, Qatar
- Department of Cell and Developmental Biology, Weill Cornell Medicine, New York, NY, United States
| | - Stephen L. Atkin
- Division of Research, Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, Doha, Qatar
- Royal College of Surgeons Ireland, Busaiteen, Bahrain
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Butler AE, Ramachandran V, Cunningham TK, David R, Gooderham NJ, Benurwar M, Dargham SR, Hayat S, Sathyapalan T, Najafi-Shoushtari SH, Atkin SL. Increased MicroRNA Levels in Women With Polycystic Ovarian Syndrome but Without Insulin Resistance: A Pilot Prospective Study. Front Endocrinol (Lausanne) 2020; 11:571357. [PMID: 33101204 PMCID: PMC7556216 DOI: 10.3389/fendo.2020.571357] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/08/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Small noncoding microRNA (miRNA) have regulatory functions in polycystic ovary syndrome (PCOS) that differ to those in women without PCOS. However, little is known about miRNA expression in women with PCOS who are not insulin resistant (IR). METHODS Circulating miRNAs were measured using quantitative polymerase chain reaction (qPCR) in 24 non-obese BMI and age matched women with PCOS and 24 control women. A miRNA data set was used to determine miRNA levels. RESULTS Women with PCOS showed a higher free androgen index (FAI) and anti-mullerian hormone (AMH) but IR did not differ. Four miRNAs (miR-1260a, miR-18b-5p, miR-424-5p, and miR let-7b-3p) differed between control and PCOS women that passed the false discovery rate (FDR) out of a total of 177 circulating miRNAs that were detected. MiRNA let-7b-3p correlated with AMH in PCOS (p < 0.05). When the groups were combined, miR-1260a correlated with FAI and let-7b-3p correlated with body mass index (BMI) (p < 0.05). There was no correlation to androgen levels. Ingenuity pathway analysis showed that nine of the top 10 miRNAs reported were associated with inflammatory pathways. CONCLUSION When IR did not differ between PCOS and control women, only four miRNA differed significantly suggesting that IR may be a driver for many of the miRNA changes reported. Let-7b-3p was related to AMH in PCOS, and to BMI as a group, whilst miR-1260a correlated with FAI. Androgen levels, however, had no effect upon circulating miRNA profiles. The expressed miRNAs were associated with the inflammatory pathway involving TNF and IL6.
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Affiliation(s)
- Alexandra E. Butler
- Diabetes Research Center (DRC), Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), Doha, Qatar
- *Correspondence: Alexandra E. Butler, ;
| | - Vimal Ramachandran
- Division of Research, Weill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar
| | - Thomas Keith Cunningham
- Academic Diabetes, Endocrinology and Metabolism, Hull York Medical School, University of Hull, Heslington, United Kingdom
| | - Rhiannon David
- Department of Surgery & Cancer, Faculty of Medicine, Imperial College, London, United Kingdom
| | - Nigel J. Gooderham
- Department of Surgery & Cancer, Faculty of Medicine, Imperial College, London, United Kingdom
| | - Manasi Benurwar
- Division of Research, Weill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar
| | - Soha R. Dargham
- Division of Research, Weill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar
| | - Shahina Hayat
- Division of Research, Weill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar
| | - Thozhukat Sathyapalan
- Academic Diabetes, Endocrinology and Metabolism, Hull York Medical School, University of Hull, Heslington, United Kingdom
| | - S Hani Najafi-Shoushtari
- Division of Research, Weill Cornell Medicine-Qatar, Qatar Foundation, Education City, Doha, Qatar
- Department of Cell and Developmental Biology, Weill Cornell Medicine, New York, NY, United States
| | - Stephen L. Atkin
- Postgraduate Studies and Research, Royal College of Surgeons Ireland, Al Muharraq, Bahrain
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Butler AE, Ramachandran V, Sathyapalan T, David R, Gooderham NJ, Benurwar M, Dargham SR, Hayat S, Hani Najafi-Shoushtari S, Atkin SL. microRNA Expression in Women With and Without Polycystic Ovarian Syndrome Matched for Body Mass Index. Front Endocrinol (Lausanne) 2020; 11:206. [PMID: 32411089 PMCID: PMC7199502 DOI: 10.3389/fendo.2020.00206] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 03/24/2020] [Indexed: 12/22/2022] Open
Abstract
Background: Despite several authors who have hypothesized that alterations of small noncoding RNAs (miR) are implicated in the etiopathogenesis of polycystic ovarian syndrome (PCOS), contrasting findings have been reported so far. Discrepancies in body mass index (BMI) levels may account for these differences; therefore, the aim of the present study was to determine whether miR differed in serum samples collected from age- and BMI-matched control and PCOS women. Methods: In a cross-sectional study, miR were measured using quantitative polymerase chain reaction in 29 women with anovulatory PCOS women and 29 control women who were in the follicular phase of their menstrual cycle, from the local biobank. Results: One hundred seventy-six miR were detected, of which 15 miR passed the false discovery rate (FDR; p < 0.05) that differed between PCOS and control women. There was no association of the top 9 miR (p < 0.02) (miR-486-5p, miR-24-3p, miR-19b-3p, miR-22-3p, miR-19a-3p, miR-339-5p, miR-185-5p, miR-101-3p, miR-let-7i-5p) with BMI, androgen levels, insulin resistance, or antimullerian hormone (AMH) in either PCOS or normal women. Ingenuity pathway assessment showed the pathways were interrelated for abnormalities of the reproductive system. Conclusion: When the confounding influence of weight was accounted for, miR levels differed between anovulatory PCOS women and control women in the follicular phase of the menstrual cycle. Interestingly, the differing miR were associated with the pathways of reproductive abnormalities but did not associate with AMH or metabolic parameters.
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Affiliation(s)
- Alexandra E. Butler
- Diabetes Research Center (DRC), Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), Doha, Qatar
- *Correspondence: Alexandra E. Butler ;
| | - Vimal Ramachandran
- Division of Research, Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, Doha, Qatar
| | - Thozhukat Sathyapalan
- Academic Diabetes, Endocrinology and Metabolism, Hull York Medical School, University of Hull, Hull, United Kingdom
| | - Rhiannon David
- Department of Surgery & Cancer, Faculty of Medicine, Imperial College, London, United Kingdom
| | - Nigel J. Gooderham
- Department of Surgery & Cancer, Faculty of Medicine, Imperial College, London, United Kingdom
| | - Manasi Benurwar
- Division of Research, Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, Doha, Qatar
| | - Soha R. Dargham
- Division of Research, Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, Doha, Qatar
| | - Shahina Hayat
- Division of Research, Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, Doha, Qatar
| | - S. Hani Najafi-Shoushtari
- Division of Research, Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, Doha, Qatar
- Department of Cell and Developmental Biology, Weill Cornell Medicine, New York, NY, United States
| | - Stephen L. Atkin
- Division of Research, Weill Cornell Medical College-Qatar, Qatar Foundation, Education City, Doha, Qatar
- Royal College of Surgeons Ireland, Busaiteen, Bahrain
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Butler AE, Hayat S, Dargham SR, Malek JA, Abdulla SA, Mohamoud YA, Suhre K, Sathyapalan T, Atkin SL. Alterations in long noncoding RNAs in women with and without polycystic ovarian syndrome. Clin Endocrinol (Oxf) 2019; 91:793-797. [PMID: 31482638 DOI: 10.1111/cen.14087] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/12/2019] [Accepted: 08/29/2019] [Indexed: 12/23/2022]
Abstract
UNLABELLED Long noncoding RNAs (lncRNAs) are RNA transcripts over 200 nucleotides long that are not translated into protein; however, there is increasing evidence of their regulatory functions. To date, there are few studies measuring lncRNA in control women or women with polycystic ovary syndrome (PCOS). OBJECTIVE To determine lncRNA differences between PCOS and control women. DESIGN Cross sectional study. PATIENTS Twenty four anovulatory women with all three diagnostic features of PCOS compared to 24 control women in the follicular phase of their menstrual cycle from a PCOS biobank. RESULTS Women with PCOS were age and weight matched compared to the control women but were significantly insulin resistant and hyperandrogenemic (P < .01). Eight lncRNA (P < .05) were detected that differed between PCOS and control women, but only MIRLET7BHG correlated with body mass index (r = .66, P < .05). No lncRNA correlated with antimullerian hormone (AMH) levels, insulin resistance (HOMA-IR) or the free androgen index (FAI). Ingenuity pathway assessment (IPA) did not identify any functional pathways for the lncRNAs. CONCLUSION LncRNAs differ between anovulatory PCOS and control women in the follicular phase of the menstrual cycle. It is unclear if this is due to inherent differences between PCOS and control women or due to changes in lncRNA that are menstrual cycle dependent. However, their IPA did not identify linked pathways, likely because few functions are as yet assigned to these lncRNAs.
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Affiliation(s)
- Alexandra E Butler
- Diabetes Research Center (DRC), Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), Doha, Qatar
| | - Shahina Hayat
- Weill Cornell Medicine-Qatar, Education City, Doha, Qatar
| | - Soha R Dargham
- Weill Cornell Medicine-Qatar, Education City, Doha, Qatar
| | - Joel A Malek
- Weill Cornell Medicine-Qatar, Education City, Doha, Qatar
| | | | | | - Karsten Suhre
- Weill Cornell Medicine-Qatar, Education City, Doha, Qatar
| | | | - Stephen L Atkin
- Weill Cornell Medicine-Qatar, Education City, Doha, Qatar
- Royal College of Surgeons Ireland, Busaiteen, Bahrain
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Datla S, Weight N, Lange J, Berwick K, He H, Lachlan T, Foster W, Yusuf S, Dhanjal T, Panikker S, Hayat S, Osman F. P2837Day-case complex left atrial ablation is safe and cost-effective: experience from a UK tertiary centre. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Day-case standard catheter ablation is becoming routine. However, patients having complex left atrial ablation for atrial fibrillation (AF) or left atrial tachycardia (LAT) often stay overnight. We have been performing day-case complex left atrial ablation since 2015.
Purpose
To evaluate the safety, efficacy and cost-effectiveness of day-case complex left atrial ablation compared with those who stayed overnight.
Methods
A retrospective analysis of all consecutive complex left atrial ablations performed in a UK tertiary cardiac centre between 2010–2018. Data were collected on baseline parameters, procedure details including mapping technique, ablation strategy, immediate efficacy, and acute complications.
Results
A total of 830 complex left atrial catheter ablations were performed; mean age±SD=60±12 years, 63% male. The majority were AF ablation (n=804, 96.9%), with the rest being LAT/left-atrial flutter. Of the AF cases, 545 were paroxysmal (≤7 days), 212 persistent (>7 days) and 47 long-standing (>1yr); 98% of cases were elective. Pulmonary vein isolation was performed in all; additional LA lines were done in 163, CTI ablation in 129 and CFAEs in 33. 3D-mapping (Carto/Precision)=44.7% (with contact sensing=38.0%), PVAC=18.7%, PVI cryo-balloon=36.6%. Of the cohort 331 (39.9%) were done as day-case. Acute success= 94.9%, acute complications=4.58% (femoral site complications, n=12; pericardial effusion, n=19 (9 needing drain); stroke/cerebral embolus, n=3; phrenic nerve palsy, n=5; first degree heart block, n=1). Comparison of day-case vs non day-case revealed no significant difference in number of complications (Table 1). An overnight stay at out hospital costs £350. During the period of study our institution saved £115.850 (∼140,000 euros).
Day-case vs non day-case ablation Parameters Day-case (n=331) Non day-case (n=499) p-value Mean age ± SD (years) 61.2±11.6 59.1±11.9 0.009 Males (n, %) 205 (61.9%) 321 (64.3%) 0.484 Normal heart (n, %) 243 (73.4%) 383 (76.8%) 0.276 Paroxysmal AF (n, %) 218 (65.9%) 327 (65.5%) 0.928 Fluoroscopy time (mins) 23.8±13.9 27.0±14.5 0.001 Procedure time (mins) 150±89.6 163±68.2 0.025 % with 3D-mapping 30.8% 56.9% <0.001 Acute complications (n, %) 12 (3.63%) 26 (5.21%) 0.285
Conclusions
Day-case complex left atrial cardiac ablation is safe and effective. It is associated with good clinical outcomes and leads to significant cost savings as an overnight stay is not needed.
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Affiliation(s)
- S Datla
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - N Weight
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - J Lange
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - K Berwick
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - H He
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - T Lachlan
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - W Foster
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - S Yusuf
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - T Dhanjal
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - S Panikker
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - S Hayat
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - F Osman
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
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Billing AM, Dib SS, Bhagwat AM, da Silva IT, Drummond RD, Hayat S, Al-Mismar R, Ben-Hamidane H, Goswami N, Engholm-Keller K, Larsen MR, Suhre K, Rafii A, Graumann J. A Systems-level Characterization of the Differentiation of Human Embryonic Stem Cells into Mesenchymal Stem Cells. Mol Cell Proteomics 2019; 18:1950-1966. [PMID: 31332097 PMCID: PMC6773553 DOI: 10.1074/mcp.ra119.001356] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 07/12/2019] [Indexed: 12/22/2022] Open
Abstract
Mesenchymal stem/stromal cells (MSCs) are self-renewing multipotent cells with regenerative, secretory and immunomodulatory capabilities that are beneficial for the treatment of various diseases. To avoid the issues that come with using tissue-derived MSCs in therapy, MSCs may be generated by the differentiation of human embryonic stems cells (hESCs) in culture. However, the changes that occur during the differentiation process have not been comprehensively characterized. Here, we combined transcriptome, proteome and phosphoproteome profiling to perform an in-depth, multi-omics study of the hESCs-to-MSCs differentiation process. Based on RNA-to-protein correlation, we determined a set of high confidence genes that are important to differentiation. Among the earliest and strongest induced proteins with extensive differential phosphorylation was AHNAK, which we hypothesized to be a defining factor in MSC biology. We observed two distinct expression waves of developmental HOX genes and an AGO2-to-AGO3 switch in gene silencing. Exploring the kinetic of noncoding ORFs during differentiation, we mapped new functions to well annotated long noncoding RNAs (CARMN, MALAT, NEAT1, LINC00152) as well as new candidates which we identified to be important to the differentiation process. Phosphoproteome analysis revealed ESC and MSC-specific phosphorylation motifs with PAK2 and RAF1 as top predicted upstream kinases in MSCs. Our data represent a rich systems-level resource on ESC-to-MSC differentiation that will be useful for the study of stem cell biology.
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Affiliation(s)
- Anja M Billing
- Research Division, Weill Cornell Medicine Qatar, Weill Cornell University, P.O. Box 24144, Doha, Qatar.
| | - Shaima S Dib
- Research Division, Weill Cornell Medicine Qatar, Weill Cornell University, P.O. Box 24144, Doha, Qatar
| | - Aditya M Bhagwat
- Research Division, Weill Cornell Medicine Qatar, Weill Cornell University, P.O. Box 24144, Doha, Qatar
| | - Israel T da Silva
- Laboratory of Bioinformatics and Computational Biology, A. C., Camargo Cancer Center, São Paulo 01508-010, Brazil; Laboratory of Molecular Immunology, The Rockefeller University, New York, New York 10065
| | - Rodrigo D Drummond
- Laboratory of Bioinformatics and Computational Biology, A. C., Camargo Cancer Center, São Paulo 01508-010, Brazil
| | - Shahina Hayat
- Research Division, Weill Cornell Medicine Qatar, Weill Cornell University, P.O. Box 24144, Doha, Qatar
| | - Rasha Al-Mismar
- Research Division, Weill Cornell Medicine Qatar, Weill Cornell University, P.O. Box 24144, Doha, Qatar
| | - Hisham Ben-Hamidane
- Research Division, Weill Cornell Medicine Qatar, Weill Cornell University, P.O. Box 24144, Doha, Qatar
| | - Neha Goswami
- Research Division, Weill Cornell Medicine Qatar, Weill Cornell University, P.O. Box 24144, Doha, Qatar
| | - Kasper Engholm-Keller
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230 Odense, Denmark; Children's Medical Research Institute, University of Sydney, Westmead, NSW 2145, Australia
| | - Martin R Larsen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230 Odense, Denmark
| | - Karsten Suhre
- Research Division, Weill Cornell Medicine Qatar, Weill Cornell University, P.O. Box 24144, Doha, Qatar
| | - Arash Rafii
- Research Division, Weill Cornell Medicine Qatar, Weill Cornell University, P.O. Box 24144, Doha, Qatar; Department of Gynecology and Obstetrics, Hôpital Foch, 92100 Suresnes, France
| | - Johannes Graumann
- Research Division, Weill Cornell Medicine Qatar, Weill Cornell University, P.O. Box 24144, Doha, Qatar.
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Barakat MF, Sunderland N, Chehab O, Kaura A, Hayat S, Amin-Youssef G, Scott P, Okonko DO. P5975Diminished LV systolic velocity on tissue Doppler imaging is linked to an amplified risk of lethal arrhythmias independently of LV ejection fraction. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Life threatening arrhythmias (LTA) can trigger sudden cardiac death, or provoke implantable cardioverter defibrillator (ICD) discharges that escalate morbidity and mortality. Longitudinal myofibrils predominate in the subendocardium which is uniquely sensitive to arrhythmogenic triggers.
Objectives
To test the hypothesis that mitral annular systolic velocity (S'), a tissue Doppler index of LV long-axis systolic function, might predict lethal arrhythmias irrespective of LVEF.
Methods
We analysed data from diverse ICD and cardiac resynchronization therapy defibrillator (CRT-D) patients at 2 London centres. Channelopathies were excluded. S' was averaged from medial and lateral mitral annuli velocities. Primary outcome was time to sustained ventricular tachycardia (VT) or fibrillation (VF) needing device therapy.
Results
In 302 patients (mean age 68 years, LVEF 32%, 77% male, 52% ischemic, 35% primary prevention, and 53% CRT-D), median S' was 5.1 (IQR: 4.0–6.2) cm/s and lower in CRT-D than ICD subjects. After a median follow-up of 15 months, 56 (19%) subjects had LTA and those who did had a lower S' than those who did not (4.6±1.4 cm/s vs. 5.4±1.7 cm/s, P=0.003-Fig A). Each 1cm/s lower S' correlated to a 43% increased risk of LTA (HR: 0.70, 95% CI: 0.57–0.87, P=0.001) independently of age, gender, β-blocker use, centre, ICD use and LVEF. Adding S' to the baseline model improved net reclassification (P=0.02) implying incremental utility (Fig B). An S' ≤5.6cm/s was the best cut-off, conferring a 2.4-fold higher LTA risk than an S'>5.6 cm/s (95% CI: 1.17–4.37, P=0.02–Fig C).
Conclusion
A lower S' forecasts an enhanced probability of LTA in cardiac device recipients irrespective of LVEF, and could be used to titrate medical, device and ablative therapies to mitigate future arrhythmic risk.
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Affiliation(s)
- M F Barakat
- King's College London, London, United Kingdom
| | | | - O Chehab
- King's College London, London, United Kingdom
| | - A Kaura
- Kings College Hospital, London, United Kingdom
| | - S Hayat
- University Hospital, Cardiology, Coventry, United Kingdom
| | | | - P Scott
- Kings College Hospital, London, United Kingdom
| | - D O Okonko
- King's College London, London, United Kingdom
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20
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Lee JD, Eftekari H, Paul G, Zhupaj A, Panikker S, Dhanjal T, Yusuf S, Hayat S, Osman F. P6561Diagnostic yield of implantable loop recorders: a comparison of arrhythmia nurse specialists versus clinicians. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.1151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Implantable loop recorders (ILR) are recommended in guidelines to determine symptom-rhythm correlation. Arrhythmia Nurse Specialists (ANS) play a critical role in the assessment of such patients. Their effectiveness at risk stratification for ILR implantation is unknown. The ESC 2018 Syncope guidelines recommend more research in this field.
Aim
To evaluate the diagnostic yield of consecutive ILR implants at a tertiary centre over a 2year period and compare ANS versus Clinicians.
Methods
A retrospective study of all patients undergoing ILR implant between April 2016 and April 2018. Data collected included baseline patient demographics, referral source and management changes made by ILR findings.
Results
305 patients had an ILR; median age was 71yrs (interquartile range 52–81), 55% male. Median follow-up time was 15months. Referrals were from general cardiology (GC) = 98 (32%), electrophysiology (EP) = 105 (34%), and ANS-led syncope clinic = 102 (34%). Indications for ILR implant were syncope = 203 (65.9%), palpitation = 21 (6.9%), pre-syncope = 16 (5.2%), cryptogenic stroke = 35 (11.5%) and others 7 (8.9%) (falls, channelopathies). Of the entire cohort, 102 (34.0%) experienced arrhythmias recorded on the ILR that resulted in a change of management. This included: pacemaker implant = 49 (16.1%), complex-device implant = 7 (2.3%), AF=28 (9.2%), SVT=14 (4.6%), VT=1 (0.3%). Of those with a syncope indication (n=203), findings on ILR altered management in 73patients (36.0%) over a median follow-up of 18months; a pacing indication in this syncope group was present in 44 (21.9%) patients (median time to diagnosis: 2.7 months) with 24 receiving a pacemaker indication within 3 months of ILR insertion. ANS had a higher pacemaker implant rate. Overall, an ILR resulted in a diagnostic yield of 34.1% (n=104). Specialist nurse referral resulted in an overall greater trend towards change of management in 38.2% of patients compared with GC (32.7%) and EP (31.0%) (p=0.593 nurse vs. consultant).
Conclusion
The overall diagnostic yield of ILR insertion was 34% in our study. ANS had a trend towards a greater diagnostic yield compared with clinicians, and significantly more pacemaker indications. Our data suggests that ANS patient selection for ILR insertion are at least comparable to clinicians.
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Affiliation(s)
- J D Lee
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - H Eftekari
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - G Paul
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - A Zhupaj
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - S Panikker
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - T Dhanjal
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - S Yusuf
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - S Hayat
- University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - F Osman
- University Hospital Coventry and Warwickshire NHS Trust, and Warwick Medical School, Coventry, United Kingdom
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21
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Thareja G, Yang H, Hayat S, Mueller FB, Lee JR, Lubetzky M, Dadhania DM, Belkadi A, Seshan SV, Suhre K, Suthanthiran M, Muthukumar T. Single nucleotide variant counts computed from RNA sequencing and cellular traffic into human kidney allografts. Am J Transplant 2018; 18:2429-2442. [PMID: 29659169 PMCID: PMC6160347 DOI: 10.1111/ajt.14870] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 03/06/2018] [Accepted: 03/31/2018] [Indexed: 01/25/2023]
Abstract
Advances in bioinformatics allow identification of single nucleotide polymorphisms (variants) from RNA sequence data. In an allograft biopsy, 2 genomes contribute to the RNA pool, 1 from the donor organ and the other from the infiltrating recipient's cells. We hypothesize that imbalances in genetic variants of RNA sequence data of kidney allograft biopsies provide an objective measure of cellular infiltration of the allograft. We performed mRNA sequencing of 40 kidney allograft biopsies, selected to represent a comprehensive range of diagnostic categories. We analyzed the sequencing reads of these biopsies and of 462 lymphoblastoid cell lines from the 1000 Genomes Project, for RNA variants. The ratio of heterozygous to nonreference genome homozygous variants (Het/Hom ratio) on all autosomes was determined for each sample, and the estimation of stromal and immune cells in malignant tumors using expression data (ESTIMATE) score was computed as a complementary estimate of the degree of cellular infiltration into biopsies. The Het/Hom ratios (P = .02) and the ESTIMATE scores (P < .001) were associated with the biopsy diagnosis. Both measures correlated significantly (r = .67, P < .0001), even though the Het/Hom ratio is based on mRNA sequence variation, while the ESTIMATE score uses mRNA expression. Het/Hom ratio and the ESTIMATE score may offer unbiased and quantitative parameters for characterizing cellular traffic into human kidney allografts.
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Affiliation(s)
- Gaurav Thareja
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Doha, Qatar
| | - Hua Yang
- Division of Nephrology and Hypertension, Department of Medicine, Weill Cornell Medical College, New York, NY
| | - Shahina Hayat
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Doha, Qatar
| | - Franco B. Mueller
- Division of Nephrology and Hypertension, Department of Medicine, Weill Cornell Medical College, New York, NY
| | - John R. Lee
- Division of Nephrology and Hypertension, Department of Medicine, Weill Cornell Medical College, New York, NY,Department of Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical College, New York, NY
| | - Michelle Lubetzky
- Division of Nephrology and Hypertension, Department of Medicine, Weill Cornell Medical College, New York, NY,Department of Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical College, New York, NY
| | - Darshana M. Dadhania
- Division of Nephrology and Hypertension, Department of Medicine, Weill Cornell Medical College, New York, NY,Department of Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical College, New York, NY
| | - Aziz Belkadi
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Doha, Qatar
| | - Surya V. Seshan
- Division of Renal Pathology, Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY
| | - Karsten Suhre
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Doha, Qatar
| | - Manikkam Suthanthiran
- Division of Nephrology and Hypertension, Department of Medicine, Weill Cornell Medical College, New York, NY,Department of Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical College, New York, NY
| | - Thangamani Muthukumar
- Division of Nephrology and Hypertension, Department of Medicine, Weill Cornell Medical College, New York, NY,Department of Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical College, New York, NY
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Stephan N, Halama A, Mathew S, Hayat S, Bhagwat A, Mathew LS, Diboun I, Malek J, Suhre K. A comprehensive metabolomic data set of date palm fruit. Data Brief 2018; 18:1313-1321. [PMID: 29900309 PMCID: PMC5997577 DOI: 10.1016/j.dib.2018.04.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 03/22/2018] [Accepted: 04/04/2018] [Indexed: 11/16/2022] Open
Abstract
This article provides detailed information on the phenotypes and the metabolic profiles of 196 date fruits from 123 unique date fruit varieties. These date fruits are extensively diverse in their country of origin, variety and post harvesting conditions. We used a non-targeted mass-spectrometry based metabolomics approach to metabolically characterize date fruits, and measured 427 metabolites from a wide range of metabolic pathways. The metabolomics data for all the date fruit samples are available at the NIH Common Fund's Data Repository and Coordinating Center (supported by NIH grant, U01-DK097430) website, http://www.metabolomicsworkbench.org), under Metabolomics Workbench StudyID: ST000867. The data are directly accessible at http://www.metabolomicsworkbench.org/data/DRCCMetadata.php?Mode=Study&StudyID=ST000867&StudyType=MS&ResultType=1.
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Affiliation(s)
- Nisha Stephan
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Education City, P.O. Box 24144, Doha, Qatar
| | - Anna Halama
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Education City, P.O. Box 24144, Doha, Qatar
| | - Sweety Mathew
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Education City, P.O. Box 24144, Doha, Qatar
| | - Shahina Hayat
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Education City, P.O. Box 24144, Doha, Qatar
| | - Aditya Bhagwat
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Education City, P.O. Box 24144, Doha, Qatar
| | - Lisa Sara Mathew
- Genomics Core, Weill Cornell Medicine-Qatar, Education City, P.O. Box 24144 , Doha, Qatar
| | - Ilham Diboun
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Education City, P.O. Box 24144, Doha, Qatar
| | - Joel Malek
- Genomics Core, Weill Cornell Medicine-Qatar, Education City, P.O. Box 24144 , Doha, Qatar
| | - Karsten Suhre
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Education City, P.O. Box 24144, Doha, Qatar
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23
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Williams-Gray CH, Wijeyekoon RS, Scott KM, Hayat S, Barker RA, Jones JL. Abnormalities of age-related T cell senescence in Parkinson's disease. J Neuroinflammation 2018; 15:166. [PMID: 29807534 PMCID: PMC5972443 DOI: 10.1186/s12974-018-1206-5] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 05/16/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND A wealth of evidence implicates both central and peripheral immune changes as contributing to the pathogenesis of Parkinson's disease (PD). It is critical to better understand this aspect of PD given that it is a tractable target for disease-modifying therapy. Age-related changes are known to occur in the immune system (immunosenescence) and might be of particular relevance in PD given that its prevalence rises with increasing age. We therefore sought to investigate this with respect to T cell replicative senescence, a key immune component of human ageing. METHODS Peripheral blood mononuclear cells were extracted from blood samples from 41 patients with mild PD (Hoehn and Yahr stages 1-2, mean (SD) disease duration 4.3 (1.2) years) and 41 age- and gender-matched controls. Immunophenotyping was performed with flow cytometry using markers of T lymphocyte activation and senescence (CD3, CD4, CD8, HLA-DR, CD38, CD28, CCR7, CD45RA, CD57, CD31). Cytomegalovirus (CMV) serology was measured given its proposed relevance in driving T cell senescence. RESULTS Markers of replicative senescence in the CD8+ population were strikingly reduced in PD cases versus controls (reduced CD57 expression (p = 0.005), reduced percentage of 'late differentiated' CD57loCD28hi cells (p = 0.007) and 'TEMRA' cells (p = 0.042)), whilst expression of activation markers (CD28) was increased (p = 0.005). This was not driven by differences in CMV seropositivity. No significant changes were observed in the CD4 population. CONCLUSIONS This study demonstrates for the first time that the peripheral immune profile in PD is distinctly atypical for an older population, with a lack of the CD8+ T cell replicative senescence which characterises normal ageing. This suggests that 'abnormal' immune ageing may contribute to the development of PD, and markers of T cell senescence warrant further investigation as potential biomarkers in this condition.
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Affiliation(s)
- C H Williams-Gray
- John Van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Forvie Site, Cambridge, CB2 0PY, UK.
| | - R S Wijeyekoon
- John Van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Forvie Site, Cambridge, CB2 0PY, UK
| | - K M Scott
- John Van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Forvie Site, Cambridge, CB2 0PY, UK
| | - S Hayat
- John Van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Forvie Site, Cambridge, CB2 0PY, UK
| | - R A Barker
- John Van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Forvie Site, Cambridge, CB2 0PY, UK
| | - J L Jones
- Neurology Unit, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
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Padwick A, Osman F, Paul G, Jones G, Hayat S, Eftekhari H. 9Implementation of opportunistic screening at Pre-Assessment Clinics for upgrade/downgrade of cardiac devices. Europace 2017. [DOI: 10.1093/europace/eux283.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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25
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Eftekhari H, Osman F, Maddock H, Hayat S. 102Protocol for a systematic search and critical review of studies, in effective strategies to maintain quality of life in adult patients with postural orthostatic tachycardia syndrome utilizing an interpretive approach. Europace 2017. [DOI: 10.1093/europace/eux283.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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26
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Lim CW, Dirksen A, Taraborrelli P, Sau A, Nagy S, Hayat S, Lim PB. 50Modification in head up tilt test protocol increases diagnostic yield and better-elucidates the mechanism of situational syncope. Europace 2017. [DOI: 10.1093/europace/eux283.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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27
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Sau A, Sritharan V, Taraborrelli P, Dirksen A, Dhutia N, Lim CW, Hayat S, Sutton R, Lim PB. 29Refining the diagnostic criteria of the postural orthostatic tachycardia syndrome (POTS) using power spectral indices. Europace 2017. [DOI: 10.1093/europace/eux283.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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28
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Eftekhari HR, Osman F, Paul G, Padwick A, Hayat S. 103How is our local AF management? The management of atrial fibrillation (af) in coventry and rugby clinical commissioning group (ccg), england compared to national data and nice (national institute for clinical excellence) 2014. Europace 2017. [DOI: 10.1093/europace/eux283.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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29
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Raine D, Begg G, Moore J, Taylor E, Buck R, Honarbakhsh S, Yew Ding W, Redfearn D, Opel A, Opel A, Thomas D, Prakash K, Thomas D, Khokhar A, Honarbakhsh S, Tairova S, Getman N, McAloon C, Honarbakhsh S, Shah M, Al-Lawati K, Al-Lawati K, Ensam B, Collins G, Akbar S, Merghani A, Furniss G, Yones E, Vijayashankar SS, Vijayashankar SS, Shariat H, Moss A, Yeoh A, Sadiq A, Taylor R, Edwards T, Nizam ud Din K, Langley P, Shepherd E, Murray S, Lord S, Bourke J, Plein S, Lip G, Tayebjee MH, Owen N, White S, O'Neill M, Hughes L, Carroll S, Moss-Morris R, Baker V, Kirkby C, Patel K, Robinson G, Antoniou S, Richmond L, Ullah W, Hunter R, Finlay M, Earley M, Whitbread M, Schilling R, Cooper R, Modi S, Somani R, Ng A, Hobson N, Caldwell J, Hadjivassilev S, Ang R, Finlay M, Dhinoja M, Earley M, Sporton S, Schilling R, Hunter R, Hadjivassilev S, Earley M, Lambiase P, Turley A, Child N, Linker N, Owens W, James S, Milner J, Tayebjee M, Sibley J, Griffiths A, Meredith T, Basher Y, Betts T, Rajappan K, Lambiase P, Lowe M, Hunter R, Schilling R, Finlay M, Rakhimbaeva G, Akramova N, Getman T, Hamborg T, O'Hare J, Randeva H, Osman F, Srinivasan N, Kirkby C, Firman E, Tobin L, Murphy C, Lowe M, Hunter R, Finlay M, Schilling R, Lambiase P, Mohan P, Salahia G, Lim H, Lim HS, Batchvarov V, Brennan P, Cox A, Muir A, Behr E, Hamill S, Laventure C, Newell S, Gordon B, Bashir K, Chuen J, Foster W, Yusuf S, Osman F, Hayat S, Panagopoulos D, Davies E, Tomlinson D, Haywood G, Mullan J, Kelland N, Horwood A, Connell N, Odams S, Maloney J, Shetty A, Kyriacou A, Sahu J, Lee J, Uzun O, Wong A, Ashtekar S, Uzun O, Wong A, Ashtekar S, Hashemi J, Gazor S, Redfearn D, Song A, Jenkins J, Glancy J, Wilson D, Sammut E, Diab I, Cripps T, Gill A, Abbas S, Enye J, Wahab A, Elshafie S, Ling K, Carey P, Chatterjee D, Timbrell S, Tufail W, Why H, Martos R, Thornley A, James S, Turley A, Bates M, Linker N, Hassan E, Quick J, Cowell R, Ho E. POSTERS (1)59MULTIPOLAR CONTACT MAPPING GUIDED ABLATION OF TEMPORALLY STABLE HIGH FREQUENCY AND COMPLEX FRACTIONATED ATRIAL ELECTROGRAM SITES IN PATIENTS WITH PERSISTENT ATRIAL FIBRILLATION60INTRA-CARDIAC AND PERIPHERAL LEVELS OF BIOCHEMICAL MARKERS OF FIBROSES IN PATIENTS UNDERGOING CATHETER ABLATION FOR ATRIAL FIBRILATION61THE DON'T WAIT TO ANTICOAGULATE PROJECT (DWAC) BY THE WEST OF ENGLAND ACADEMIC HEALTH SCIENCE NETWORK (AHSN) OPTIMISES STROKE PREVENTION FOR PATIENTS WITH ATRIAL FIBRILLATION (AF) WITHIN PRIMARY CARE IN LINE WITH NICE CG180 IN THE WEST OF ENGLAND62ILLNESS AND TREATMENT REPRESENTATIONS, COPING AND DISTRESS: VICIOUS CYCLES OF EVERYDAY EXPERIENCES IN PATIENTS WITH PERSISTENT ATRIAL FIBRILLATION63THE NEEDS OF THE ADOLESCENT LIVING WITH AN INHERITED CARDIAC CONDITION: THE PATIENTS' PERSPECTIVE64SAFETY AND EFFICACY OF PARAMEDIC TREATMENT OF REGULAR SUPRAVENTRICULAR TACHYCARDIA (PARA-SVT)65NATURAL PROGRESSION OF QRS DURATION FOLLOWING IMPLATABLE CARDIOVERTER DEFIBRILLATORS (ICD) - IMPLANTATION66COMPARISON OF EFFICACY OF VOLTAGE DIRECTED CAVOTRICUSPID ISTHMUS ABLATION USING MINI VS CONVENTIONAL ELETRODES67CRYOBALLOON ABLATION (CRYO) FOR ATRIAL FIBRILLATION (AF) CANNOT BE GUIDED BY TEMPERATURE END-POINTS ALONE68MODERATOR BAND ECTOPY UNMASKED BY ADENOSINE AS A CAUSE OF ECTOPIC TRIGGERED IDIOPATHIC VF69EARLY CLINICAL EXPERIENCE WITH TARGETED SITE SELECTION FOR THE WiCS-LV ELECTRODE FOR CRT70DOES VECTOR MAPPING PRIOR TO IMPLANTABLE LOOP RECORDER INSERTION IMPROVE THE DETECTION OF ARRHYTHMIA?71THE ROLE OF SPECKLE TRACKING STRAIN IMAGING IN ASSESSING LEFT VENTRICULAR RESPONSE TO CARDIAC RESYNCHRONISATION THERAPY IN RESPONDERS AND NON-RESPONDERS72EVALUATING PATIENTS' EXPERIENCE AND SATISFACTION OF THE ATRIAL FIBRILLATION ABLATION PROCEDURE: A RETROSPECTIVE ANALYSIS73TROUBLESHOOTING LV LEAD IMPLANTATION - NOVEL “UNIRAIL TECHNIQUE”74SUBCLINICAL ATHEROSCELEROSIS AND COGNITIVE IMPAIRMENT75EFFECT OF LOZARTANE ON DEVELOPMENT OF THE ELECTRICAL INSTABILITY OF THE MYOCARDIUM76THE INTERPLAY BETWEEN BODY COMPOSITION AND LEFT VENTRICULAR REMODELLING IN CARDIAC RESYNCHRONISATION THERAPY77FAMILY SCREENING IN IDIOPATHIC VENTRICULAR FIBRILLATION78MANAGEMENT OF ATRIAL FIBRILLATION IN A LARGE TEACHING HOSPITAL79THE EFFECT OF LEFT VENTRICULAR LEAD POSITION ON SURVIVAL IN PATIENTS WITH BINVENTRICULAR PACEMAKRS/DEFIBRILLATORS80ACUTE DEVICE IMPLANT-RELATED COMPLICATIONS DO NOT INCREASE LATE MORTALITY81ABORTED CARIDAC ARREST AS THE SENTINEL PRESENTATION IN A COHORT OF PATIENTS WITH THE CONCEALED BRUGADA PHENOTYPE82POST-CARDIAC DEVICE IMPLANTATION MOBILISATION ADVICE: A NATIONAL SURVEY83DO RISK SCORES DEVELOPED TO PROTECT ONE-YEAR MORTALITY ACTUALLY HELP IN ACCURATELY SELECTING PATIENTS RECEIVING PRIMARY PREVENTION ICD?84ATRIAL TACHYCARDIA ARISING FROM THE NON-CORONARY AORTIC CUSP85THE EFFECT OF DIFFERENT ATRIAL FIBRILLATION ABLATION STRATEGIES ON SURFACE ECG P WAVE DURATION86PRESCRIBING DRONEDARONE: HOW IS IT DONE ACROSS THE UK AND IS IT SAFE?87A CASE OF WIDE COMPLEX TACHYCARDIA88TRANSITION TO DEDICATED DAY CASE DEVICES - SAFETY AND EFFICACY IN A LARGE VOLUME CENTRE89SEQUENTIAL REGIONAL DOMINANT FREQUENCY MAPPING DURING ATRIAL FIBRILLATION: A NOVEL TEQUNIQUE90ELECTIVE CARDIOVERSION ENERGY PROTOCOLS: A RETROSPECTIVE COMPARISON OF ESCALATION STRATEGIES91THE INCIDENCE OF CLINCALLY RELEVANT HAEMATOMAS WITH PERIOPERATIVE USE OF NEWER P2Y12 INHIBITORS AND INTERRUPTED NOAC THERAPY IN CARDIAC IMPLANTABLE ELECTRONIC DEVICE INSERTION92AN AUDIT OF THE OUTCOMES FOR CHEMICAL AND DIRECT CURRENT CARDIOVERSION FOR ATRIAL FIBRILLATION AT OUR DGH OVER A 3 YEAR DURATION93REAL LIFE ACUTE MANAGEMET OF HAEMODYNAMICALLY TOLERATED MONOMORPHIC VENTRICULAR TACHYCARDIA. ARE WE MAKING EVIDENCE BASED ON DECISIONS?94A SERVICE EVALUATION TO ASSESS THE EFFICACY AND SAFETY OF NOVEL ORAL ANTICOAGULANTS VERSUS WARFARIN FOR ELECTIVE CARDIVERSION IN PATIENTS WITH NON VALVULAR AF IN A NURSE LED CARDIOVERSION SERVICE95PICK UP RATE OF IMPLANTED LOOP RECORDER AT A DISTRICT HOSPITAL. Europace 2016. [DOI: 10.1093/europace/euw273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Billing AM, Ben Hamidane H, Bhagwat AM, Cotton RJ, Dib SS, Kumar P, Hayat S, Goswami N, Suhre K, Rafii A, Graumann J. Complementarity of SOMAscan to LC-MS/MS and RNA-seq for quantitative profiling of human embryonic and mesenchymal stem cells. J Proteomics 2016; 150:86-97. [PMID: 27613379 DOI: 10.1016/j.jprot.2016.08.023] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 08/01/2016] [Accepted: 08/29/2016] [Indexed: 11/16/2022]
Abstract
Dynamic range limitations are challenging to proteomics, particularly in clinical samples. Affinity proteomics partially overcomes this, yet suffers from dependence on reagent quality. SOMAscan, an aptamer-based platform for over 1000 proteins, avoids that issue using nucleic acid binders. Targets include low expressed proteins not easily accessible by other approaches. Here we report on the potential of SOMAscan for the study of differently sourced mesenchymal stem cells (MSC) in comparison to LC-MS/MS and RNA sequencing. While targeting fewer analytes, SOMAscan displays high precision and dynamic range coverage, allowing quantification of proteins not measured by the other platforms. Expression between cell types (ESC and MSC) was compared across techniques and uncovered the expected large differences. Sourcing was investigated by comparing subtypes: bone marrow-derived, standard in clinical studies, and ESC-derived MSC, thought to hold similar potential but devoid of inter-donor variability and proliferating faster in vitro. We confirmed subtype-equivalency, as well as vesicle and extracellular matrix related processes in MSC. In contrast, the proliferative nature of ESC was captured less by SOMAscan, where nuclear proteins are underrepresented. The complementary of SOMAscan allowed the comprehensive exploration of CD markers and signaling molecules, not readily accessible otherwise and offering unprecedented potential in subtype characterization. SIGNIFICANCE Mesenchymal stem cells (MSC) represent promising stem cell-derived therapeutics as indicated by their application in >500 clinical trials currently registered with the NIH. Tissue-derived MSC require invasive harvesting and imply donor-to-donor differences, to which embryonic stem cell (ESC)-derived MSC may provide an alternative and thus warrant thorough characterization. In continuation of our previous study where we compared in depth embryonic stem cells (ESC) and MSC from two sources (bone marrow and ESC-derived), we included the aptamer-based SOMAscan assay, complementing LC-MS/MS and RNA-seq data. Furthermore, SOMAscan, a targeted proteomics platform developed for analyzing clinical samples, has been benchmarked against established analytical platforms (LC-MS/MS and RNA-seq) using stem cell comparisons as a model.
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Affiliation(s)
- Anja M Billing
- Research Division, Weill Cornell Medical College in Qatar, Doha, Qatar.
| | | | - Aditya M Bhagwat
- Research Division, Weill Cornell Medical College in Qatar, Doha, Qatar.
| | - Richard J Cotton
- Research Division, Weill Cornell Medical College in Qatar, Doha, Qatar.
| | - Shaima S Dib
- Research Division, Weill Cornell Medical College in Qatar, Doha, Qatar.
| | - Pankaj Kumar
- Research Division, Weill Cornell Medical College in Qatar, Doha, Qatar.
| | - Shahina Hayat
- Research Division, Weill Cornell Medical College in Qatar, Doha, Qatar.
| | - Neha Goswami
- Research Division, Weill Cornell Medical College in Qatar, Doha, Qatar.
| | - Karsten Suhre
- Research Division, Weill Cornell Medical College in Qatar, Doha, Qatar.
| | - Arash Rafii
- Research Division, Weill Cornell Medical College in Qatar, Doha, Qatar.
| | - Johannes Graumann
- Research Division, Weill Cornell Medical College in Qatar, Doha, Qatar.
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Wani AS, Ahmad A, Hayat S, Tahir I. Is foliar spray of proline sufficient for mitigation of salt stress in Brassica juncea cultivars? Environ Sci Pollut Res Int 2016; 23:13413-13423. [PMID: 27026543 DOI: 10.1007/s11356-016-6533-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 03/21/2016] [Indexed: 06/05/2023]
Abstract
The effects of foliar application of proline (20 mM) on growth, physio-biochemical, and yield parameters were assessed in two Brassica juncea (L.) Czern & Coss cultivars, namely, Varuna and RH-30, at different levels (2.8, 4.2, or 5.6 dsm(-1)) of NaCl in soil. At 29 days after sowing (DAS), plants were sprayed with either 20 mM proline or water in the presence or absence of NaCl stress. The NaCl negatively affected parameters related to growth, photosynthesis, and yield in both varieties but more in RH-30 than in Varuna. Exogenous application of proline counteracted the effects of salt stress in Varuna only, by increasing the antioxidative capacity of the plants. Moreover, proline was not effective in alleviating the detrimental effects of higher salt concentrations on the studied parameters. Proline application to unstressed plants increased growth, photosynthesis, and yield parameters in both varieties; however, the effects were more prominent in Varuna than in RH-30.
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Affiliation(s)
- A S Wani
- Plant Physiology and Biochemistry Research Lab, Department of Botany, University of Kashmir, Srinagar, 190006, India
| | - A Ahmad
- Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India
| | - S Hayat
- Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India.
| | - I Tahir
- Plant Physiology and Biochemistry Research Lab, Department of Botany, University of Kashmir, Srinagar, 190006, India
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Welikala RA, Fraz MM, Hayat S, Rudnicka AR, Foster PJ, Whincup PH, Owen CG, Strachan DP, Barman SA. Automated retinal vessel recognition and measurements on large datasets. Annu Int Conf IEEE Eng Med Biol Soc 2016; 2015:5239-42. [PMID: 26737473 DOI: 10.1109/embc.2015.7319573] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The characteristics of the retinal vascular network have been prospectively associated with many systemic and vascular diseases. QUARTZ is a fully automated software that has been developed to localize and quantify the morphological characteristics of blood vessels in retinal images for use in epidemiological studies. This software was used to analyse a dataset containing 16,000 retinal images from the EPIC-Norfolk cohort study. The objective of this paper is to both assess the suitability of this dataset for computational analysis and to further evaluate the QUARTZ software.
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Heck P, Luther V, Luther V, Williams S, Schricker A, Zaman J, Ang R, Li X, Aziz S, Sugihara C, Grace A, Reddy V, Neuzil P, Linton N, Koa-Wing M, Lim P, Jamil-Copley S, Whinnett Z, Qureshi N, Ng F, Hayat S, Davies D, Peters N, Kanagaratnam P, Jamil-Copley S, Linton N, Koa-Wing M, Lim P, Hayat S, Ng F, Davies D, Peters N, Kanagaratnam P, Chubb H, Harrison J, Whitaker J, Cooklin M, Rinaldi C, Gill J, Wright M, Plank G, Niederer S, O'Neill M, Zaman J, Baykaner T, Lalani G, Hopper K, Moyeda A, Krummen D, Narayan S, Lalani G, Baykaner T, Swerdlow M, Park S, Krummen D, Wang P, Narayan S, Opel A, Ullah W, Baker V, Finlay M, Dhinoja M, Earley M, Sporton S, Schilling R, Hunter R, Chu G, Almeida T, Vanheusden F, Dastagir N, Salinet J, Stafford P, Schlindwein F, Ng G, Chubb H, Harrison J, Williams S, Whitaker J, Wright M, Schaeffter T, Razavi R, O'Neill M, Barlow N, Owens E, Sallomi D, Furniss S, Sulke N. Mapping & Ablation19Novel global ultrasound imaging and continuous dipole density mapping: initial findings in AF patients20Low voltage functional myocardium is critical in determining the substrate of post-ablation atrial tachycardia: results from a prospective study using ripple mapping distinguishing low-voltage scar from conducting tissue21Ripple mapping of post infarct ventricular scar to identify conduction channels and guide substrate based ablation22Effect of chamber geometry and activation pattern on optimal local activation time sampling density for tachycardia diagnosis25Clinical measures of good basket placement predict successful outcome from atrial fibrillation rotor ablation26Unipolar electrogram amplitude is reduced at rotor sites critical to focal termination of human persistent AF27Cryoballoon versus point by point radiofrequency ablation or a novel combined approach: long term follow up and comparison of patterns of pulmonary vein reconnection between different ablation strategies in a randomised controlled trial28Recurrent high dominant frequency patterns in persistent atrial fibrillation29Optimisation of late gadolinium enhanced (LGE) cmr imaging of atrial ablation scar30Hyperacute and chronic changes in cerebral magnetic resonance images after PVAC, NMARQ and epicardial thoracoscopic surgical ablation for paroxysmal atrial fibrillation. Europace 2015. [DOI: 10.1093/europace/euv326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Shiota T, Imai K, Qiu J, Hewitt VL, Tan K, Shen HH, Sakiyama N, Fukasawa Y, Hayat S, Kamiya M, Elofsson A, Tomii K, Horton P, Wiedemann N, Pfanner N, Lithgow T, Endo T. Molecular architecture of the active mitochondrial protein gate. Science 2015; 349:1544-8. [DOI: 10.1126/science.aac6428] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Keevil VL, Luben R, Dalzell N, Hayat S, Sayer AA, Wareham NJ, Khaw KT. Cross-sectional associations between different measures of obesity and muscle strength in men and women in a British cohort study. J Nutr Health Aging 2015; 19:3-11. [PMID: 25560810 PMCID: PMC6284799 DOI: 10.1007/s12603-014-0492-6] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVES The relationship between obesity and grip strength, a key indicator of sarcopenia, has been inconsistently reported. We aimed to examine associations between grip strength and both body mass index (BMI), a clinical indicator of total adiposity, and waist circumference (WC), an indicator of central adiposity. DESIGN Cross-sectional study. SETTING AND PARTICIPANTS Data collected from 8,441 men and women, aged 48-92 years old, who attended the third health examination of the European Prospective Investigation into Cancer-Norfolk study was used. MEASUREMENTS Maximum grip strength (Smedley dynamometer), BMI (weight/height2) and WC (measured at the natural waist) were ascertained at a research clinic. The associations between grip strength and adiposity measures were explored using linear regression with adjustment for age, height, social class, physical activity, prevalent disease, smoking status and alcohol intake. RESULTS Men and women were examined separately and those in the upper quartile of BMI were 2.70kg (95%CI 2.07, 3.33) and 1.46kg (95%CI 1.05, 1.86) stronger respectively than those in the bottom quartile (P trends <0.001). Grip strength also increased weakly with increasing WC. However, including both BMI and WC in the same regression model revealed an inverse association between grip strength and WC, whilst the previously observed association with BMI strengthened. For every 10cm increase in WC, grip strength was 3.56kg (95%CI 3.04, 4.08) lower in men and 1.00kg (95%CI 0.74, 1.24) lower in women. CONCLUSIONS Larger overall body mass, indicated by higher BMI, is associated with stronger grip strength but high WC, a clinical indicator of central obesity, is associated with lower grip strength. Abdominal fat is the most metabolically active adipose tissue and this provides a clue to potential mechanisms underlying relationships between fat and skeletal muscle. Additionally, it reinforces the recommendation to measure WC in clinical practice, especially when BMI is below obese ranges.
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Affiliation(s)
- V L Keevil
- Victoria L Keevil, Department of Public Health and Primary Care, University of Cambridge, Strangeways Research Laboratory, Wort's Causeway, Cambridge. CB1 8RN, United Kingdom,
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Luther V, Jamil-Copley S, Shun-Shin M, Koa-Wing M, Wright I, Hayat S, Linton N, Lim P, Lefroy D, Whinnett Z, Davies D, Peters N, Kanagaratnam P. 24Acute and long-term outcomes for patients undergoing radiofrequency catheter ablation of scar-related ventricular tachycardia by robotic catheter navigation. Europace 2014. [DOI: 10.1093/europace/euu238.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Hayat S, Courtney P, Lanyon P. FRI0499 Retrospective CASE Series of Refractory Antisynthetase Syndrome Successfully Treated with Rituximab (3 CASES). Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Rahman MR, Saiedullah M, Shermin S, Begum S, Hayat S. Diagnostic Efficacy of HbA1c in Diagnosis of Diabetes Mellitus in a Bangladesh Population. ACTA ACUST UNITED AC 2014. [DOI: 10.3329/bmj.v41i1.18785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
American Diabetic Association (ADA) affirms HbA1c with cut off value of 6.5% as a diagnostic criteria of diabetes mellitus. World Health Organization (WHO) also supports but recommended that a value <6.5% does not exclude diabetes which is diagnosed by glucose test. The aim of this study was to evaluate the diagnostic efficacy of HbA1c in terms of sensitivity, specificity, positive and negative predictive value and accuracy in a selected group of Bangladeshi subjects. This cross-sectional study included 761 adult Bangladeshi subjects of both sex attending the outdoor in a tertiary healthcare center during the period of September 2009 to September 2010. Fasting, postprandial (2 hours after glucose load) plasma glucose and HbA1c were measured. Diabetes is defined according to HbA1c and plasma glucose. Sensitivity, specificity, positive and negative predictive value of HbA1c were 90.00% (CI 86.48-92.86%), 76.21% (CI 71.68-80.35%), 78.17% (CI 73.94-82.00%) and 88.96% (CI 85.10-92.10%) respectively. Accuracy was 82.92% with odds ratio (OR) 28.84 (CI 19.10-43.54%); p < 0.001. Though HbA1c revealed remarkable diagnostic efficacy and ease of performance, still it can not over rule the role of plasma glucose in diagnosis of diabetes mellitus. DOI: http://dx.doi.org/10.3329/bmj.v41i1.18785 Bangladesh Medical Journal 2012 Vol. 41 No. 1; 53-54
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Berglund EC, Lindqvist CM, Hayat S, Övernäs E, Henriksson N, Nordlund J, Wahlberg P, Forestier E, Lönnerholm G, Syvänen AC. Accurate detection of subclonal single nucleotide variants in whole genome amplified and pooled cancer samples using HaloPlex target enrichment. BMC Genomics 2013; 14:856. [PMID: 24314227 PMCID: PMC4046713 DOI: 10.1186/1471-2164-14-856] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 11/25/2013] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Target enrichment and resequencing is a widely used approach for identification of cancer genes and genetic variants associated with diseases. Although cost effective compared to whole genome sequencing, analysis of many samples constitutes a significant cost, which could be reduced by pooling samples before capture. Another limitation to the number of cancer samples that can be analyzed is often the amount of available tumor DNA. We evaluated the performance of whole genome amplified DNA and the power to detect subclonal somatic single nucleotide variants in non-indexed pools of cancer samples using the HaloPlex technology for target enrichment and next generation sequencing. RESULTS We captured a set of 1528 putative somatic single nucleotide variants and germline SNPs, which were identified by whole genome sequencing, with the HaloPlex technology and sequenced to a depth of 792-1752. We found that the allele fractions of the analyzed variants are well preserved during whole genome amplification and that capture specificity or variant calling is not affected. We detected a large majority of the known single nucleotide variants present uniquely in one sample with allele fractions as low as 0.1 in non-indexed pools of up to ten samples. We also identified and experimentally validated six novel variants in the samples included in the pools. CONCLUSION Our work demonstrates that whole genome amplified DNA can be used for target enrichment equally well as genomic DNA and that accurate variant detection is possible in non-indexed pools of cancer samples. These findings show that analysis of a large number of samples is feasible at low cost, even when only small amounts of DNA is available, and thereby significantly increases the chances of indentifying recurrent mutations in cancer samples.
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Affiliation(s)
- Eva C Berglund
- Department of Medical Sciences, Molecular Medicine and Science for Life Laboratory, Uppsala University, Uppsala, Sweden.
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Lee G, Hunter R, Lovell M, Finlay M, Sawhney V, Ullah W, Diab I, Dhinoja M, Earley M, Sporton S, Schilling RJ, Williams SE, Linton NWF, Harrison J, Wright M, O'Neill M, Jamil-Copley S, Linton N, Koa-Wing M, Lim PB, Hayat S, Qureshi N, Whinnett Z, Davies W, Peters N, Francis D, Kanagaratnam P, Jamil-Copley S, Ryan B, Kojodjojo P, Qureshi N, Koa-Wing M, Hayat S, Kyriacou A, Sandler B, Sohaib A, Wright I, Davies W, Peters N, Whinnett Z, Kanagaratnam P, Lim PB, Qureshi NA, Bai W, Ariff B, Williams A, Monro C, Kim S, Jamil-Copley S, Hayat S, Kao-Wing M, Kyriacou A, Sandler B, Fu NS, Kanagaratnam P, Whinnett Z, Davies DW, Lefroy D, Peters NS, Lim PB, Ryan MJ, Ezzat VA, O'Leary J, Bull C, Chow A, Lambiase P, Lowe MD, Anwar AS, Collitt S, Iddon P, Rice N, Dodd M, Dunsdale A, Petkar S, Mudd J, Linker N, Fitzpatrick AP, Fraser S, Choo WK, Padfield G, Rushworth G, Bloe C, Forsyth P, Cross SJ, Leslie SJ, Phan TT, Dewhurst M, Lee D, Williams D, James S, Thornley A, de Belder M, Linker N, Turley A, Campbell NG, Cantor E, Sawhney V, Duncan ER, Demartini C, Baker V, Diab IG, Dhinoja M, Earley MJ, Sporton S, Davies LC, Schilling RJ, Pettit SJ, Randles DA, Shaw M, Hawkins NM, Wright DJ, Lambiase PD, Barr C, Knops R, Neuzil P, Theuns D, Johansen JB, Hood M, Pederson S, Reeve HL, Boersma L. ABSTRACTS FOR ORAL PRESENTATION, SESSION 3, HRC 2013. Europace 2013. [DOI: 10.1093/europace/eut316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Fabritz L, Fortmuller L, Vloumidi E, Yue TY, Syeda F, Kirchhof P, Leube R, Krusche C, Chin SH, Winter J, Brack KE, Ng GA, Ng FS, Holzem KM, Koppel AC, Janks D, Wit AL, Peters NS, Efimov IR, Chowdhury RA, El-Harasis MA, Dupont E, Terracciano CMN, Peters NS, Mellor GJ, Raju H, de Noronha SV, Papadakis M, Sharma S, Behr ER, Sheppard MN, Jamil-Copley S, Bai W, Ariff B, Lim PB, Koa-Wing M, Kyriacou A, Hayat S, Sohaib A, Qureshi N, Sandler B, O'Regan D, Whinnett Z, Davies W, Rueckert D, Kanagaratnam P, Peters N, Lambiase PD, Chow AW, Lowe MD, Segal OR, Ahsan S, de Bono J, Dhaliwal M, Mfuko C, Ng A, Sandilands A, Paisey J, Roberts P, Morgan JM, McCready J, Yue A, Ullah W, Hunter R, Lovell M, Dhinoja M, Sporton S, Earley M, Schilling R, Ghosh J, Martin A, Keech A, Chan KH, Gomes S, Singarayar S, McGuire M, Lee G, Hunter R, Berriman T, Diab I, Kamdar R, Richmond L, Baker V, Goromonzi F, Sawhney V, Duncan E, Unsworth B, Mayet J, Abrams D, Dhinoja M, Sporton S, Earley M, Schilling RJ, Bowers RW, Mulholland V, Balasubramaniam RN, Paisey JR, Sopher SM, Chu GS, Chin SH, Winter J, Armstrong S, Masca N, Almeida TP, Brown PD, Sandilands AJ, Schlindwein FS, Ng GA. ABSTRACTS FOR ORAL PRESENTATION, SESSION 2, HRC 2013. Europace 2013. [DOI: 10.1093/europace/eut315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Panchal S, Moorthy A, Hayat S, Pande I, Adebajo A, Chakravarty K, Samanta A. FRI0446 A national audit of patients with rheumatoid arthritis of black and minority ethnic origin. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Leng Y, Wainwright NWJ, Hayat S, Stephan BCM, Matthews FE, Luben R, Surtees PG, Khaw KT, Brayne C. The association between social stress and global cognitive function in a population-based study: the European Prospective Investigation into Cancer (EPIC)-Norfolk study. Psychol Med 2013; 43:655-66. [PMID: 22687394 DOI: 10.1017/s0033291712001316] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Stress is thought to exert both positive and negative effects on cognition, but the precise cognitive effects of social stress and individuals' response to stress remain unclear. We aimed to investigate the association between different measures of social stress and cognitive function in a middle- to older-aged population using data from the European Prospective Investigation into Cancer (EPIC)-Norfolk study. METHOD Participants completed a comprehensive assessment of lifetime social adversity between 1993 and 1997 and the short form of the Mini Mental State Examination (SF-MMSE), an assessment of global cognitive function, during the third health check between 2004 and 2011 (a median of 10.5 years later). A low MMSE score was defined as a score in the bottom quartile (20-26). RESULTS Completed MMSE scores and stress measures were available for 5129 participants aged 48-90 years. Participants who reported that their lives had been more stressful over the previous 10 years were significantly more likely to have low MMSE scores [odds ratio (OR) 1.14, 95% confidence interval (CI) 1.04-1.24 per unit increase in perceived stress], independently of sociodemographic factors, physical and emotional health. The effects were restricted to the highest level of stress and the association was stronger among participants with a lower educational level. Adaptation following life event experiences also seemed to be associated with MMSE scores after adjusting for sociodemographic factors, but the association was attenuated with further adjustment. CONCLUSIONS In this generally high-functioning population, individuals' interpretations and responses to stressful events, rather than the events themselves, were associated with cognitive function.
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Affiliation(s)
- Y Leng
- Department of Public Health and Primary Care, Strangeways Research Laboratory, University of Cambridge, UK.
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Umer S, Hayat S, Caldito G, Berney SM. Role of anti-Ro autoantibodies in systemic lupus erythematosus patients with recurrent myositis. Arthritis Res Ther 2012. [PMCID: PMC3467534 DOI: 10.1186/ar3991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Yusuf M, Fariduddin Q, Hayat S, Ahmad A. Nickel: an overview of uptake, essentiality and toxicity in plants. Bull Environ Contam Toxicol 2011; 86:1-17. [PMID: 21170705 DOI: 10.1007/s00128-010-0171-1] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Accepted: 11/29/2010] [Indexed: 05/04/2023]
Abstract
Nickel even though recognized as a trace element, its metabolism is very decisive for certain enzyme activities, maintaining proper cellular redox state and various other biochemical, physiological and growth responses. Study of the aspects related with uptake, transport and distributive localization of Ni is very important in various cellular metabolic processes particularly under increased nitrogen metabolism. This review article, in core, encompasses the dual behavior of Ni in plants emphasizing its systemic partitioning, essentiality and ill effects. However, the core mechanism of molecules involved and the successive physiological conditions required starting from the soil absorption, neutralization and toxicity generated is still elusive, and varies among the plants.
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Affiliation(s)
- M Yusuf
- Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002 Uttar Pradesh, India
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Anantharam B, Janardhanan R, Hayat S, Hickman M, Chahal N, Bassett P, Senior R. Coronary flow reserve assessed by myocardial contrast echocardiography predicts mortality in patients with heart failure. European Journal of Echocardiography 2010; 12:69-75. [DOI: 10.1093/ejechocard/jeq109] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Foster PJ, Broadway DC, Hayat S, Luben R, Dalzell N, Bingham S, Wareham NJ, Khaw KT. Refractive error, axial length and anterior chamber depth of the eye in British adults: the EPIC-Norfolk Eye Study. Br J Ophthalmol 2010; 94:827-30. [DOI: 10.1136/bjo.2009.163899] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Anantharam B, Hayat S, Hickman M, Janardhanan R, Chelliah R, Senior R. 087 Prognostic value of myocardial contrast echocardiography in heart failure patients. Heart 2010. [DOI: 10.1136/hrt.2010.196071.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wilkinson J, Mlay P, Vasquez B, Hayat S, Smith G, Oneko O. O623 Emergency obstetrics practical skills and written examination scores are retained over 6 months in an East Africa setting. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)60996-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Muhammad F, Akhtar M, Javed I, ZU-Rahman, Jan I, Anwar MI, Hayat S. Quantitative structure activity relationship and risk analysis of some heavy metal residues in the milk of cattle and goat. Toxicol Ind Health 2009; 25:177-81. [DOI: 10.1177/0748233709105592] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Milk of cattle and goat was collected from various localities of Faisalabad, Pakistan. Heavy metal concentration in milk was determined by atomic absorption spectrophotometer. Milk from both of the species was found richly contaminated with cadmium (Cd), chromium (Cr), nickel (Ni), and lead (Pb). Lead concentration in the milk of goat was significantly higher as compared to cattle milk. Quantitative structure activity relationship (QSAR) models were suggested to predict the residues of unknown heavy metals in the milk of cattle and goat using their known physicochemical properties such as molecular weight (MW), melting point (MP), and boiling point (BP) as well as the milk characteristics such as pH, % fat, and specific gravity (SG) of both of these species. The analysis revealed good correlation coefficients ( R2 = 0.759) and ( R2 = 0.876) for cattle and goat QSAR models, respectively. This analysis indicates the need to construct species specific QSAR models for residue prediction. The coefficients for SG for the studied metals were higher in both cattle and goat milk. This suggests that SG is a better determinant for heavy metal residue prediction in the milk of these animals. Risk analysis was conducted based upon the determined heavy metal residues and their provisional tolerable daily intakes. The daily intake of Cd, Cr, and Pb was found to be 1.6, 27, and 116 times higher, respectively, in cattle milk and 1.8, 29, 262 times higher respectively, in goat milk. This intake of heavy metal contaminated milk might pose health hazards to humans in this locality.
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Affiliation(s)
- F Muhammad
- Department of Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan
| | - M Akhtar
- Department of Parasitology, University of Agriculture, Faisalabad, Pakistan
| | - I Javed
- Department of Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan
| | - ZU-Rahman
- Department of Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan
| | - I Jan
- Department of Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan
| | - MI Anwar
- Livestock and Dairy Development Department, Punjab, Pakistan
| | - S Hayat
- Faculty of Veterinary Science, B.Z. University, Multan, Pakistan
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