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Shaukat N, Merchant AAH, Sahibjan F, Abbasi A, Jarrar Z, Ahmed T, Atiq H, Khan UR, Khan N, Mushtaq S, Rasul S, Hyder A, Razzak J, Haider A. Exploring the Long-Term Disability Outcomes in Trauma Patients: Study Protocol. Res Sq 2024:rs.3.rs-4238506. [PMID: 38659840 PMCID: PMC11042389 DOI: 10.21203/rs.3.rs-4238506/v1] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Objectives Post-discharge patient-reported outcomes from trauma registries can be used to measure trauma care quality. However, studies reflecting the Asian experience are limited. Therefore, we aim to develop a digital trauma registry to prospectively capture patient-reported outcomes (PROs) at one-, three-, six-, and twelve-months post-injury in Pakistan. Methods We will use a cohort study design to develop a digital trauma registry at two tertiary care facilities (Aga Khan University Hospital & Jinnah Postgraduate Medical Center) in Karachi, Pakistan. The registry will include all admitted adult trauma patients (≥18 years). Data collection will be digital using tablets, with mortality, level of disability, and functional status, quality of life being the outcomes. Telephonic interviews will be conducted with the patients and caregivers for follow-up data collection. Discussion The high disability burden following accidental trauma imposes a significant burden and cost on individuals and society. Therefore, the trauma registry would fill this gap by capturing post-discharge long-term PROs. It will provide the injured patient's post-discharge situation, challenges, and future directions for incorporating long-term PROs in low-resource settings. Including long-term measures in routine follow-ups will provide insights into physical, social, and policy barriers and help advance injury care research.
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Pang KH, Haider A, Freeman A, Hadway P, Bunker C, Muneer A, Alnajjar HM. A diagnosis of syphilis following a radical circumcision for suspected penile cancer. Ann R Coll Surg Engl 2024. [PMID: 38563065 DOI: 10.1308/rcsann.2022.0143] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024] Open
Abstract
We present a case of a 70-year-old gentleman who was referred to our tertiary 2-week-wait penile cancer clinic with a penile mass that was ulcerated, painful and discharging. This was suspicious for penile cancer and a radical circumcision was performed to remove the diseased foreskin en bloc with the lesion that was arising from the inner foreskin. Histopathology did not reveal cancer; however, we identified spirochaetes in keeping with syphilis. This was confirmed on serology. The patient was referred to the genitourinary medicine team and treated with antibiotics. This case demonstrates a rare presentation of genital syphilis in an elderly gentleman initially referred with concerns of penile cancer. Although, rare, especially in this age group, syphilis should be considered as a differential diagnosis in a patient presenting with an ulcerated, discharging, firm penile mass, especially given that the incidence of syphilis has been rising in recent years.
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Affiliation(s)
- K H Pang
- University College London Hospitals NHS Foundation Trust, UK
| | - A Haider
- University College London Hospitals NHS Foundation Trust, UK
- University College London, UK
| | - A Freeman
- University College London Hospitals NHS Foundation Trust, UK
- University College London, UK
| | - P Hadway
- University College London Hospitals NHS Foundation Trust, UK
- University College London, UK
| | - C Bunker
- University College London Hospitals NHS Foundation Trust, UK
| | - A Muneer
- University College London Hospitals NHS Foundation Trust, UK
- Division of Surgery and Interventional Science, University College London, UK
| | - H M Alnajjar
- University College London Hospitals NHS Foundation Trust, UK
- Division of Surgery and Interventional Science, University College London, UK
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Adams DJ, Barlas B, McIntyre RE, Salguero I, van der Weyden L, Barros A, Vicente JR, Karimpour N, Haider A, Ranzani M, Turner G, Thompson NA, Harle V, Olvera-León R, Robles-Espinoza CD, Speak AO, Geisler N, Weninger WJ, Geyer SH, Hewinson J, Karp NA, Fu B, Yang F, Kozik Z, Choudhary J, Yu L, van Ruiten MS, Rowland BD, Lelliott CJ, Del Castillo Velasco-Herrera M, Verstraten R, Bruckner L, Henssen AG, Rooimans MA, de Lange J, Mohun TJ, Arends MJ, Kentistou KA, Coelho PA, Zhao Y, Zecchini H, Perry JRB, Jackson SP, Balmus G. Genetic determinants of micronucleus formation in vivo. Nature 2024; 627:130-136. [PMID: 38355793 PMCID: PMC10917660 DOI: 10.1038/s41586-023-07009-0] [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: 03/25/2022] [Accepted: 12/21/2023] [Indexed: 02/16/2024]
Abstract
Genomic instability arising from defective responses to DNA damage1 or mitotic chromosomal imbalances2 can lead to the sequestration of DNA in aberrant extranuclear structures called micronuclei (MN). Although MN are a hallmark of ageing and diseases associated with genomic instability, the catalogue of genetic players that regulate the generation of MN remains to be determined. Here we analyse 997 mouse mutant lines, revealing 145 genes whose loss significantly increases (n = 71) or decreases (n = 74) MN formation, including many genes whose orthologues are linked to human disease. We found that mice null for Dscc1, which showed the most significant increase in MN, also displayed a range of phenotypes characteristic of patients with cohesinopathy disorders. After validating the DSCC1-associated MN instability phenotype in human cells, we used genome-wide CRISPR-Cas9 screening to define synthetic lethal and synthetic rescue interactors. We found that the loss of SIRT1 can rescue phenotypes associated with DSCC1 loss in a manner paralleling restoration of protein acetylation of SMC3. Our study reveals factors involved in maintaining genomic stability and shows how this information can be used to identify mechanisms that are relevant to human disease biology1.
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Affiliation(s)
- D J Adams
- Wellcome Sanger Institute, Cambridge, UK.
| | - B Barlas
- UK Dementia Research Institute at the University of Cambridge, University of Cambridge, Cambridge, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | | | - I Salguero
- The Gurdon Institute and Department of Biochemistry, University of Cambridge, Cambridge, UK
| | | | - A Barros
- Wellcome Sanger Institute, Cambridge, UK
- The Gurdon Institute and Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - J R Vicente
- UK Dementia Research Institute at the University of Cambridge, University of Cambridge, Cambridge, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - N Karimpour
- UK Dementia Research Institute at the University of Cambridge, University of Cambridge, Cambridge, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - A Haider
- UK Dementia Research Institute at the University of Cambridge, University of Cambridge, Cambridge, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - M Ranzani
- Wellcome Sanger Institute, Cambridge, UK
| | - G Turner
- Wellcome Sanger Institute, Cambridge, UK
| | | | - V Harle
- Wellcome Sanger Institute, Cambridge, UK
| | | | - C D Robles-Espinoza
- Wellcome Sanger Institute, Cambridge, UK
- Laboratorio Internacional de Investigación Sobre el Genoma Humano, Universidad Nacional Autónoma de México, Santiago de Querétaro, México
| | - A O Speak
- Wellcome Sanger Institute, Cambridge, UK
| | - N Geisler
- Wellcome Sanger Institute, Cambridge, UK
- The Gurdon Institute and Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - W J Weninger
- Division of Anatomy, MIC, Medical University of Vienna, Wien, Austria
| | - S H Geyer
- Division of Anatomy, MIC, Medical University of Vienna, Wien, Austria
| | - J Hewinson
- Wellcome Sanger Institute, Cambridge, UK
| | - N A Karp
- Wellcome Sanger Institute, Cambridge, UK
| | - B Fu
- Wellcome Sanger Institute, Cambridge, UK
| | - F Yang
- Wellcome Sanger Institute, Cambridge, UK
| | - Z Kozik
- Functional Proteomics Group, Chester Beatty Laboratories, The Institute of Cancer Research, London, UK
| | - J Choudhary
- Functional Proteomics Group, Chester Beatty Laboratories, The Institute of Cancer Research, London, UK
| | - L Yu
- Functional Proteomics Group, Chester Beatty Laboratories, The Institute of Cancer Research, London, UK
| | - M S van Ruiten
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - B D Rowland
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | | | | | - L Bruckner
- Experimental and Clinical Research Center (ECRC) of the MDC and Charité Berlin, Berlin, Germany
- Max-Delbrück-Centrum für Molekulare Medizin, Berlin, Germany
| | - A G Henssen
- Experimental and Clinical Research Center (ECRC) of the MDC and Charité Berlin, Berlin, Germany
- Max-Delbrück-Centrum für Molekulare Medizin, Berlin, Germany
- Department of Pediatric Oncology and Hematology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
- German Cancer Consortium (DKTK), partner site Berlin, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - M A Rooimans
- Department of Human Genetics, Section of Oncogenetics, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Cancer Center Amsterdam, Cancer Biology and Immunology, Amsterdam, The Netherlands
| | - J de Lange
- Department of Human Genetics, Section of Oncogenetics, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Cancer Center Amsterdam, Cancer Biology and Immunology, Amsterdam, The Netherlands
| | - T J Mohun
- Division of Developmental Biology, MRC, National Institute for Medical Research, London, UK
| | - M J Arends
- Division of Pathology, Cancer Research UK Scotland Centre, Institute of Genetics & Cancer The University of Edinburgh, Edinburgh, UK
| | - K A Kentistou
- MRC Epidemiology Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - P A Coelho
- Department of Genetics, University of Cambridge, Cambridge, UK
| | - Y Zhao
- UK Dementia Research Institute at the University of Cambridge, University of Cambridge, Cambridge, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - H Zecchini
- Metabolic Research Laboratory, Wellcome-MRC Institute of Metabolic Science, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - J R B Perry
- MRC Epidemiology Unit, Wellcome-MRC Institute of Metabolic Science, University of Cambridge School of Clinical Medicine, Cambridge, UK
- Metabolic Research Laboratory, Wellcome-MRC Institute of Metabolic Science, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - S P Jackson
- The Gurdon Institute and Department of Biochemistry, University of Cambridge, Cambridge, UK
- Cancer Research UK Cambridge Institute, Cambridge, UK
| | - G Balmus
- Wellcome Sanger Institute, Cambridge, UK.
- UK Dementia Research Institute at the University of Cambridge, University of Cambridge, Cambridge, UK.
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.
- The Gurdon Institute and Department of Biochemistry, University of Cambridge, Cambridge, UK.
- Department of Molecular Neuroscience, Transylvanian Institute of Neuroscience, Cluj-Napoca, Romania.
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Shamshad S, Rizvi KA, Shehnaz H, Jatoi SA, Shahnaz L, Naqvi SMS, Qasim M, Zainab T, Haider A. Novel NARC-G1 garlic: comparative allicin quantification with morpho-biochemical & genetic profiling. BRAZ J BIOL 2024; 84:e262697. [DOI: 10.1590/1519-6984.262697] [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: 05/28/2022] [Accepted: 07/12/2022] [Indexed: 11/22/2022] Open
Abstract
Abstract Garlic (Allium sativum) is an important cash food crop, and the biotechnology industry has considerable interest in the plant because of its medicinal importance. These medicinal properties are attributed to organosulphur compounds as the accumulation of these compounds varies according to genotype, locality, light quality, and cultivation practices. In this study, we compared a newly developed garlic variety NARC-G1 by National Agricultural Research Centre (NARC), Islamabad, Pakistan with three different garlic cultivars and highlighted the distinctive attributes like phenotypic characteristics, the content of allicin, elemental profile, and gene polymorphism. Phenotypic analysis showed NARC-G1 has significantly higher bulb weight (66.36g ± 18.58), single clove weight (5.87g ± 1.041), and clove width (17.41mm ± 0.95) which directly correlates to the size of the garlic. The analytical analysis showed the highest allicin content (4.82 ± 0.001) in NARC-G1. Genotyping of the alliinase in all four cultivars showed indels in the gene resulting in distinguishable changes in organosulphur compounds’ profile. NARC-G1 is unique from other garlic cultivars and could be the best choice for mass production with proper cultivation and irrigation management. Moreover, for Pakistan NARC-G1 could be a potential contender to earn the industrial benefits with inland cultivation instead of importing garlic alleviating the economic burden.
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Affiliation(s)
- S. Shamshad
- Pir Mehr Ali Shah Arid Agriculture University Rawalpindi, Pakistan
| | - K. A. Rizvi
- Pir Mehr Ali Shah Arid Agriculture University Rawalpindi,, Pakistan
| | - H. Shehnaz
- Sindh Madressatul Islam University, Pakistan
| | - S. A. Jatoi
- National Agriculture Research Center, Pakistan
| | | | | | - M. Qasim
- Hydrocarbon Development Institute of Pakistan, Pakistan
| | - T. Zainab
- Pir Mehr Ali Shah Arid Agriculture University Rawalpindi, Pakistan; Pir Mehr Ali Shah Arid Agriculture University Rawalpindi,, Pakistan
| | - A. Haider
- Chemico Bacteriological Laboratory, Pakistan
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Riaz Q, Mitha R, Shamim MS, Virani QUA, Belgaumi A, Khan MR, Roshan R, Zahid N, Haider A. Exploring the 'January effect' at a university hospital in Pakistan: a retrospective cohort study investigating the impact of trainee turnover on patient care quality outcomes. BMC Med Educ 2023; 23:770. [PMID: 37845631 PMCID: PMC10577952 DOI: 10.1186/s12909-023-04708-0] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 09/21/2023] [Indexed: 10/18/2023]
Abstract
OBJECTIVE There are reports of a potential rise in a teaching hospital's morbidity and mortality rates during the trainee turnover period, i.e., with the induction of new residents and house staffs, and the changeover of clinical teams. The published literature displays mixed reports on this topic with lack of reproducible observations. The current study was conducted to explore existence of any such phenomenon (January effect) in Pakistan. METHODS This retrospective cohort study was conducted at Aga Khan University Hospital, Karachi, Pakistan. Five-year (2013-2018) record of all the patients in all age groups related to these outcomes was retrieved and recorded in specifically designed questionnaire. Different outcome measures were used as indicators of patient care and change in these outcomes at the time of new induction was related to possible January effect. RESULTS During the five-year study period, more than 1100 new trainees were inducted into the post graduate medical education program (average of 237 per year) with more than 22,000 inpatient admissions (average of 45,469 per year). Some patterns were observed in frequencies of surgical site infections, medication errors, sentinel events, patient complaints, and adverse drug reactions. However, these were not consistently reproducible and could not be directly attributed to the trainee turnover. All other indicators did not show any pattern and were considered inconclusive. No effect of overlap was observed. CONCLUSIONS Inconsistency in the patient care quality indicators do not favor existence of January effect in our study. Further research is recommended to establish our results.
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Affiliation(s)
- Qamar Riaz
- Department for Educational Development, Aga Khan University Hospital, Karachi, Pakistan
| | - Rida Mitha
- Department of Surgery, Section of Neurosurgery, Aga Khan University Hospital, Karachi, Pakistan
| | - Muhammad Shahzad Shamim
- Department of Surgery, Section of Neurosurgery, Aga Khan University Hospital, Karachi, Pakistan.
| | - Qurat-Ul-Ain Virani
- Department of Surgery, Section of Neurosurgery, Aga Khan University Hospital, Karachi, Pakistan
| | | | | | - Rozina Roshan
- Department of Infection Prevention & Hospital Epidemiology (DIPHE), Aga Khan University Hospital (AKUH), Karachi, Pakistan
| | - Nida Zahid
- Aga Khan University Hospital, Karachi, Pakistan
| | - Adil Haider
- Aga Khan University Hospital, Karachi, Pakistan
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Ahmed FA, Choudhary RA, Khan H, Ayub F, Hassan SSU, Munir T, Asif F, Ajani K, Jaffer M, Tharani Z, Aboumatar HJ, Haider A, Latif A. Incorporating Patient Safety and Quality Course Into the Nursing Curriculum: An Assessment of Student Gains. J Patient Saf 2023; 19:408-414. [PMID: 37602696 PMCID: PMC10461720 DOI: 10.1097/pts.0000000000001146] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
BACKGROUND Training nursing students on quality and patient safety (PS) is crucial to ensuring safe healthcare practices given the key role nurses play on the healthcare team. The aim of this study was to evaluate the impact of quality and PS course on the knowledge, and system thinking of students at different stages of the undergraduate nursing course. METHODS A 4.5-day quality improvement and PS course was conducted at the Aga Khan University School of Nursing and Midwifery for 146 second- and 139 fourth-year students. Students' knowledge, self-assessment of knowledge and skills, and system thinking were assessed using pretest and posttest. RESULTS Of the total of 20 points, the course significantly improved students' knowledge by a mean of 4.91 points for second-year students (95% confidence interval [CI], 4.32-5.51) and 3.46 points for fourth-year students (95% CI, 2.90-4.02) between pretest and posttest. For systems thinking, the Systems Thinking Scale scores increased by 0.41 points (95% CI, 0.29-0.52) for second-year students and 0.33 points (95% CI, 0.22-0.44) for fourth-year students out of the total of 5 points. The self-assessment scores significantly increased on postcourse assessment for second (P < 0.05) and fourth-year students (P < 0.001). Positive experience reported by students in the narrative reflections complemented these results. CONCLUSIONS There was a significant increase in nursing students' knowledge, self-efficacy, and system thinking after participating in this short PS course. Replication at a national level may improve safety knowledge and skills among nursing students with subsequent gains in the safety of healthcare delivery in Pakistan.
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Affiliation(s)
- Fasih Ali Ahmed
- From the Division of Surgical Oncology, University Hospitals Cleveland Medical Center, Cleveland, Ohio
- Centre for Patient Safety
| | | | - Hamza Khan
- Dean’s Clinical Research Fellow, Aga Khan University Medical College
| | | | | | - Tahir Munir
- Department of Anaesthesiology, Aga Khan University Medical College
| | | | | | - Mehtab Jaffer
- Aga Khan University School of Nursing and Midwifery, Karachi, Pakistan
| | - Zahra Tharani
- Aga Khan University School of Nursing and Midwifery, Karachi, Pakistan
| | - Hanan J. Aboumatar
- Armstrong Institute for Patient Safety and Quality, Johns Hopkins Medicine, Baltimore, Maryland
| | - Adil Haider
- Medical College, Aga Khan University, Karachi, Pakistan
| | - Asad Latif
- Dean’s Clinical Research Fellow, Aga Khan University Medical College
- Aga Khan University School of Nursing and Midwifery, Karachi, Pakistan
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Pang KH, Haider A, Ho DH, Walker NF, Walkden M, Freeman A, Muneer A, Alnajjar HM. A large dermoid cyst of the spermatic cord. Ann R Coll Surg Engl 2023; 105:678-680. [PMID: 37652086 PMCID: PMC10471429 DOI: 10.1308/rcsann.2022.0102] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2022] [Indexed: 09/02/2023] Open
Abstract
Dermoid cysts of the spermatic cord are rare, with only a few adult cases published in the literature. We report a patient with a 10cm inguinal mass referred to us for a suspected paratesticular sarcoma. Imaging suggested a cyst but, due to the recent increase in size, the cyst contents were evacuated and the cyst wall was biopsied. Histopathology revealed a dermoid cyst, which is a benign variant of cystic teratomas. Histopathological examination was required here due to the uncertainty. Careful interpretation was required, as cystic teratomas very occasionally undergo a malignant transformation.
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Affiliation(s)
- KH Pang
- University College London Hospitals NHS Foundation, UK
| | - A Haider
- University College London Hospitals NHS Foundation, UK
| | | | - NF Walker
- King’s College Hospital NHS Foundation, UK
| | - M Walkden
- University College London Hospitals NHS Foundation, UK
| | - A Freeman
- University College London Hospitals NHS Foundation, UK
| | | | - HM Alnajjar
- University College London Hospitals NHS Foundation, UK
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8
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Almeida-Magana R, Al-Hammouri T, Au M, Haider A, Freeman A, Ta A, Shaw G. Optimizing fluorescence confocal microscopy margin assessment during RARP, the LaserSAFE technique. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01373-8] [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: 02/12/2023]
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9
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Thavarajah V, Akman G, Carmona Echeverria L, Griffin J, Freeman A, Haider A, Shaw G, Narashima Sridhar A, Kelly J, Pye H, Crompton J, Enica A, Whitaker H, Okoli U, Cheema U, Heavey S. 120P The compartment-specific spatial transcriptomic landscape of 3D cultured Gleason 7 prostate cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.09.121] [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: 11/01/2022] Open
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10
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Okoli U, Akman G, Thavarajah V, Carmona Echeverria L, Griffin J, Ohayi R, Freeman A, Haider A, Shaw G, Sridhar A, Kelly J, Simpson B, Pye H, Crompton J, Whitaker H, Cheema U, Heavey S. 99P The transcriptional atlas of co-targeted PIM/PI3K/mTOR ex-vivo patient-derived prostate cancer as revealed by spatial transcriptomics. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.09.100] [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: 11/01/2022] Open
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Meisel A, Mark M, Haider A, Holer L, Hayoz S, Gebhard C, Bengs S, Treyer V, Rothschild S, Hochmair M, Gandara D, Cappuzzo F, Reck M, Stenner-Liewen F, von Moos R. 1051P Radiotherapy (RT) and efficacy of immune checkpoint inhibitors (ICI), chemotherapy (CTx) and chemoimmunotherapy (CIT) in patients with non-small cell lung cancer (NSCLC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1177] [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: 11/01/2022] Open
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12
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Ahmed FA, Asif F, Mubashir A, Aboumatar HJ, Hameed M, Haider A, Latif A. Incorporating Patient Safety and Quality Into the Medical School Curriculum: An Assessment of Student Gains. J Patient Saf 2022; 18:637-644. [PMID: 35532980 PMCID: PMC9422755 DOI: 10.1097/pts.0000000000001010] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Global efforts are being made to improve health care standards and the quality of care provided. It has been shown through research that the introduction of patient safety (PS) and quality improvement (QI) concepts in the medical curriculum prepares medical students to face future challenges in their professional careers. PURPOSE This study aimed to evaluate how a brief course on QI and PS affects the knowledge, efficacy, and system thinking of medical students. METHODS A 5-day QI and PS intervention course was implemented at the Aga Khan University medical college for 98 third-year medical students in March 2021. This weeklong course of lectures, interactive sessions, and hands-on skill workshops was conducted before the students began their clinical rotations. Students' knowledge, self-efficacy, and system thinking were assessed with pretest and posttest. Students were also asked to write personal reflections and fill out a satisfaction survey at the end of the intervention. RESULTS Comparisons of pretest and posttest scores showed that the course significantly improved students' knowledge by a mean of 2.92 points (95% confidence interval, 2.30-3.53; P < 0.001) and system thinking by 0.16 points (95% confidence interval, 0.03-0.29; P = 0.018) of the maximum scores of 20 and 5 points, respectively. The students' self-assessment of PS knowledge also reflected statistically significant increases in all 9 domains ( P < 0.001). Students reported positive experiences with this course in their personal reflections. CONCLUSIONS The medical students exhibited increases in knowledge, self-efficacy, and system thinking after this weeklong intervention. The design of the course can be modified as needed and implemented at other institutions in low- and middle-income countries. A targeted long-term assessment of knowledge and attitudes is needed to fully evaluate the impact of this course.
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Affiliation(s)
- Fasih Ali Ahmed
- From the Center for Patient Safety, Aga Khan University, Karachi, Pakistan
| | - Fozia Asif
- From the Center for Patient Safety, Aga Khan University, Karachi, Pakistan
| | - Ayesha Mubashir
- From the Center for Patient Safety, Aga Khan University, Karachi, Pakistan
| | - Hanan J. Aboumatar
- Johns Hopkins University School of Medicine
- Armstrong Institute for Patient Safety and Quality, Johns Hopkins Medicine, Baltimore, Maryland
| | - Malika Hameed
- Department of Anaesthesiology, Aga Khan University, Karachi, Pakistan
| | - Adil Haider
- Medical College, Aga Khan University, Karachi, Pakistan
| | - Asad Latif
- Armstrong Institute for Patient Safety and Quality, Johns Hopkins Medicine, Baltimore, Maryland
- Department of Anaesthesiology, Aga Khan University, Karachi, Pakistan
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Kravvas G, Muneer A, Watchorn R, Castiglione F, Haider A, Freeman A, Hadway P, Alnajjar H, Lynch M, Bunker C. 234 Male genital lichen sclerosus, micro incontinence and occlusion: Mapping the disease across the prepuce. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.241] [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: 10/17/2022]
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14
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Spencer A, Watchorn RE, Kravvas G, Ben-Salha I, Haider A, Francis N, Freeman A, Alnajjar HM, Muneer A, Bunker CB. Pseudoepitheliomatous keratotic and micaceous balanitis: a series of eight cases. J Eur Acad Dermatol Venereol 2022; 36:1851-1856. [PMID: 35695159 DOI: 10.1111/jdv.18328] [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: 10/14/2021] [Accepted: 05/05/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Pseudoepitheliomatous keratotic and micaceous balanitis (PEKMB) is a clinicopathological entity characterized clinically by micaceous scale on the glans, and histologically by acanthosis, hyperkeratosis and pseudoepitheliomatous hyperplasia. We present a series of eight cases of this rare condition, the first series of more than two cases to be reported. OBJECTIVES To determine the clinical and histological characteristics of cases of PEKMB, and evaluate treatments used and clinical course. METHODS This monocentric case series was conducted at the University College London Hospitals tertiary male genital dermatology clinic between April 2018 and August 2020. Eight patients with PEKMB were evaluated. Data were collected on demographics, clinical presentation, histological features, presence of human papilloma virus (HPV), history of lichen sclerosus, treatment of PEKMB and subsequent response, and presence or development of squamous cell carcinoma (SCC) or penile intraepithelial neoplasia (PeIN) during follow-up. RESULTS Eight Caucasian males presented with clinical and histological evidence of PEKMB. Seven had a background of lichen sclerosus; two had failed treatment with superpotent topical steroids and four had symptoms for three or more years prior to circumcision. There was no clinical or histological relationship with HPV infection, and p16 staining was negative. HPV PCR, performed in two cases, was negative. Basal atypia, insufficient to amount to PeIN, was present in six patients. One patient progressed to PeIN during follow-up, and no patient progressed to invasive malignancy. Five patients were treated successfully with glans resurfacing and split skin graft reconstruction. CONCLUSIONS Our observations demonstrate that PEKMB represents a form of chronic, undiagnosed or misdiagnosed, inadequately treated or treatment refractory, unstable lichen sclerosus. The significant potential for squamous carcinogenesis (differentiated PeIN and verrucous carcinoma) can be mitigated by timely diagnosis and treatment. Glans resurfacing and split skin graft reconstruction appears to be a successful treatment modality in patients with refractory disease.
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Affiliation(s)
- A Spencer
- Department of Dermatology, University College London Hospitals NHS Trust, London, UK.,Department of Dermatology, Imperial College Healthcare NHS Trust, London, UK
| | - R E Watchorn
- Department of Dermatology, University College London Hospitals NHS Trust, London, UK.,Department of Dermatology, Imperial College Healthcare NHS Trust, London, UK
| | - G Kravvas
- Department of Dermatology, University College London Hospitals NHS Trust, London, UK
| | - I Ben-Salha
- Department of Histopathology, University College London Hospitals NHS Trust, London, UK
| | - A Haider
- Department of Histopathology, University College London Hospitals NHS Trust, London, UK
| | - N Francis
- Department of Histopathology, Imperial College Healthcare NHS Trust, London, UK
| | - A Freeman
- Department of Histopathology, University College London Hospitals NHS Trust, London, UK
| | - H M Alnajjar
- Department of Urology, University College London Hospitals NHS Trust, London, UK
| | - A Muneer
- Department of Urology, University College London Hospitals NHS Trust, London, UK.,National Institute of Health Research Centre, University College London Hospitals NHS Trust, London, UK.,Division of Surgery and Interventional Science, University College London, London, UK
| | - C B Bunker
- Department of Dermatology, University College London Hospitals NHS Trust, London, UK
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15
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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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Akbar MU, Ikram M, Imran M, Haider A, Ul-Hamid A, Dilpazir S, Shahzadi I, Nazir G, Shahzadi A, Nabgan W, Haider J. Cu-loaded C3N4-MgO nanorods for promising antibacterial and dye degradation. Appl Nanosci 2022. [DOI: 10.1007/s13204-022-02494-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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17
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Haider A, Haider KS, Doros G, Traish A, Saad F. Effects of Long-term Testosterone Therapy on Erectile Function in Obese Men with Functional Hypogonadism Receiving Long-term Testosterone Therapy- results From a Registry Study. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.01.017] [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: 10/18/2022]
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18
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Jarman MP, Jin G, Weissman JS, Ash AS, Tjia J, Salim A, Haider A, Cooper Z. Association of Trauma Center Designation With Postdischarge Survival Among Older Adults With Injuries. JAMA Netw Open 2022; 5:e222448. [PMID: 35294541 PMCID: PMC8928003 DOI: 10.1001/jamanetworkopen.2022.2448] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/12/2022] [Indexed: 01/14/2023] Open
Abstract
Importance Trauma centers improve outcomes for young patients with serious injuries. However, most injury-related hospital admissions and deaths occur in older adults, and it is not clear whether trauma center care provides the same benefit in this population. Objective To examine whether 30- and 365-day mortality of injured older adults is associated with the treating hospital's trauma center level. Design, Setting, and Participants This prospective, population-based cohort study used Medicare claims data from January 1, 2013, to December 31, 2016, for all fee-for-service Medicare beneficiaries 66 years or older with inpatient admission for traumatic injury in 2014 to 2015. Data analysis was performed from January 1 to June 31, 2021. Preinjury health was measured using 2013 claims, and outcomes were measured through 2016. The population was stratified by anatomical injury pattern. Propensity scores for level I trauma center treatment were estimated using the Abbreviated Injury Scale, age, and residential proximity to trauma center and then used to match beneficiaries from each trauma level (I, II, III, and IV/non-trauma centers) by injury type. Exposure Admitting hospital's trauma center level. Main Outcomes and Measures Case fatality rates (CFRs) at 30 and 365 days after injury, estimated in the matched sample using multivariable, hierarchical logistic regression models. Results A total of 433 169 Medicare beneficiaries (mean [SD] age, 82.9 [8.3] years; 68.4% female; 91.5% White) were included in the analysis. A total of 206 275 (47.6%) were admitted to non-trauma centers and 161 492 (37.3%) to level I or II trauma centers. Patients with isolated extremity fracture had the fewest deaths (365-day CFR ranged from 16.1% [95% CI, 11.2%-22.4%] to 17.4% [95% CI, 11.8%-24.6%] by trauma center status). Patients with both hip fracture and traumatic brain injury had the most deaths (365-day CFRs ranged from 33.4% [95% CI, 25.8%-42.1%] to 35.8% [95% CI, 28.9%-43.5%]). Conclusions and Relevance These findings suggest that older adults do not benefit from existing trauma center care, which is designed with younger patients in mind. There is a critical need to improve trauma care practices to address common injury mechanisms and types of injury in older adults.
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Affiliation(s)
- Molly P. Jarman
- Center for Surgery and Public Health, Department of Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
- Department of Surgery, Harvard Medical School, Boston, Massachusetts
| | - Ginger Jin
- Center for Surgery and Public Health, Department of Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Joel S. Weissman
- Center for Surgery and Public Health, Department of Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
- Department of Surgery, Harvard Medical School, Boston, Massachusetts
| | - Arlene S. Ash
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worchester
| | - Jennifer Tjia
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worchester
| | - Ali Salim
- Department of Surgery, Harvard Medical School, Boston, Massachusetts
- Division of Trauma, Burn and Surgical Critical Care, Department of Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Adil Haider
- Center for Surgery and Public Health, Department of Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
- Medical College, The Aga Khan University, Karachi, Pakistan
| | - Zara Cooper
- Center for Surgery and Public Health, Department of Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
- Department of Surgery, Harvard Medical School, Boston, Massachusetts
- Division of Trauma, Burn and Surgical Critical Care, Department of Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
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19
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Lehmann J, Kluike CW, Haider A, Haider KS, Baumann S, Flesch M, Gedamke M, Kägebein D. [Factors influencing the choice of androgen deprivation therapy for patients with hormone-sensitive prostate cancer : Results of the ProComD study]. Urologe A 2022; 61:173-182. [PMID: 34402941 PMCID: PMC8831365 DOI: 10.1007/s00120-021-01620-7] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/13/2021] [Indexed: 12/02/2022]
Abstract
BACKGROUND Androgen deprivation therapy (ADT) with a GnRH agonist or the GnRH antagonist degarelix is a central component in the treatment of prostate cancer (PCa). Little is currently known regarding the decision criteria. Knowledge of these could improve the success of treatment in the future. OBJECTIVES To identify factors influencing the treatment decision in patients with hormone-sensitive prostate cancer receiving ADT and to determine the incidence of concomitant disease in both treatment groups. METHODS The two-arm, prospective, non-interventional study "ProComD" was conducted from September 2014 to June 2019 at 80 study centers in Germany. After the therapy decision was made, patients with hormone-sensitive prostate cancer needing ADT were included in the study. Data were collected during routine visits. RESULTS Data from 413 patients were evaluated (degarelix N = 268; GnRH agonists N = 145). Key factors influencing the therapy decision for both treatment options included comorbidities (42% of all patients), compliance (64%), and age (81%). The source of information consulted most frequently regarding existing comorbidities was the patient's medical history conducted by the treating urologist themselves (65% in both groups). For patients with pre-existing cardiovascular diseases, the doctor's letter (45.8% degarelix vs. 38.9% GnRH agonists) or the medical history questionnaire (38.9% degarelix vs. 20% GnRH agonists) was additionally taken into account. CONCLUSION Comorbidities along with age and compliance are among the key factors influencing the treatment decisions made by urologists.
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Affiliation(s)
- J Lehmann
- Urologische Gemeinschaftspraxis Prüner Gang, Gesundheitszentrum Kiel-Mitte, Prüner Gang 15., 24103, Kiel, Deutschland.
| | - C W Kluike
- Urologie am Wasserturm, Lüneburg, Deutschland
| | - A Haider
- Praxis für Urologie und Andrologie, Bremerhaven, Deutschland
| | - K S Haider
- Praxis für Urologie und Andrologie, Bremerhaven, Deutschland
| | - S Baumann
- Praxisgemeinschaft für Urologie, Leipzig, Deutschland
| | - M Flesch
- Marienkrankenhaus, Soest, Deutschland
| | | | - D Kägebein
- Ferring Arzneimittel GmbH, Kiel, Deutschland
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20
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Parker C, Sahdev V, Alnajjar H, Haider A, Freeman A, Alifrangis C, Muneer A. Completion orchidectomy post chemotherapy: A single-centre 10-year retrospective. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00639-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Haider A, Haider K, Doros G, Traish A. Renal function improves under long-term treatment with testosterone in hypogonadal men with type 2 diabetes. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00489-4] [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: 11/26/2022]
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22
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Saad F, Haider A, Haider KS, Doros G, Traish A. Improved glycaemic control and reduced incidence of myocardial infarctions, strokes, and mortality in men with hypogonadism and type 2 diabetes, with and without long-term testosterone therapy. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2805] [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
Introduction
Guidelines by the ESC and EASD state that patients with diabetes have a two-fold excess risk of vascular outcomes. An increasing number of studies suggests that testosterone therapy (TTh) has cardiometabolic benefits in men with hypogonadism and type 2 diabetes (T2DM).
Methods
In a registry of men with hypogonadism in a urological office, 361 men had T2DM and received standard diabetes treatment including lifestyle recommendations and coaching in a diabetes center. 183 men received TTh with testosterone undecanoate injections 1000 mg/12 weeks following an initial 6-week interval (T-group). 178 men opted against TTh and served as controls (CTRL). Changes over time between groups were compared and adjusted for age, weight, waist circumference, fasting glucose, blood pressure, lipids and quality of life to account for baseline differences between the two groups. 12-year analyses of 3149 patient-years are reported.
Results
Mean (median) follow-up 8.2±3.2 (8) years in the T-group, 9.2±2.8 (10) years in CTRL, baseline age: 60.6±5.4 (T-group) and 63.5±5.0 (CTRL) years (p<0.0001). All but 7 patients were overweight or obese.
70 patients (38.3%) in the T-group and 70 (39.3%) in CTRL had a history of cardiovascular disease (myocardial infarction MI, stroke, or coronary artery disease diagnosis) (p=0.8341). Baseline smoking prevalence was 41.0% (75 men) in the T-group and 38.2% (68 men) in CTRL (p=0.5161).
The T-group had significantly worse baseline risk factor profile than CTRL: BMI (36.5±4.5 vs. 33.4±5.3 kg/m2), systolic blood pressure (163.0±13.5 vs. 145.6±14.6 mmHg), LDL (4.7±0.9 vs. 4.1±1.4 mmol/L), HbA1c 9.4±1.4 vs. 7.8±0.7% (p<0.0001 for all).
HbA1c progressively decreased by 3.7±0.2% at 12 years in the T-group and increased in CTRL by 3.2±0.2%, estimated adjusted difference between groups: −6.9% [95% CI: −7.4; −6.4] (p<0.0001 for all).
Fasting glucose decreased in the T-group by 1.9±0.1 and increased in CTRL by 1.8±0.1 mmol/L, estimated adjusted difference: −3.6 mmol/L [95% CI: −4.0; −3.3] (p<0.0001 for all).
Men in the T-group lost 19.7±0.4% weight, men in CTRL gained 9.1±0.4%, estimated adjusted difference: −28.8% [95% CI: −30.2; −27.4] (p<0.0001 for all).
During the observation period, 15 patients (8.2%) died in the T-group vs. 61 (34.3%) in CTRL (p<0.0001).
In the T-group, there were no cases of MI or stroke. In CTRL, there were 56 cases of MI (31.5%) and 56 cases of stroke (31.5%). 35 patients (19.7%) suffered a MI and a stroke.
Medication adherence to testosterone was 100% as all injections were administered in the medical office and documented.
Conclusions
Long-term treatment with TU in men with hypogonadism and T2DM significantly reduces mortality, compared to untreated controls. Improved glycaemic control and weight loss may have contributed to these outcomes.
Funding Acknowledgement
Type of funding sources: Private company. Main funding source(s): Bayer AG, Berlin, Germany
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Affiliation(s)
- F Saad
- Bayer AG, Berlin, Germany
| | - A Haider
- Private Urology Practice, Bremerhaven, Germany
| | - K S Haider
- Private Urology Practice, Bremerhaven, Germany
| | - G Doros
- Boston University, Boston, United States of America
| | - A Traish
- Boston University, Boston, United States of America
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23
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Saad F, Haider A, Haider KS, Doros G, Traish A. Improvements of blood pressure, heart rate, and pulse pressure in men with hypogonadism and type 2 diabetes, with and without long-term testosterone therapy. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2389] [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
Introduction
Guidelines by the ESC and EASD recommend that patients with hypertension and type 2 diabetes (T2DM) are treated individually to a systolic blood pressure (SBP) target of <130 mmHg. There is little information in the literature about effects of testosterone therapy on blood pressure in men with hypogonadism and T2DM.
Methods
In a registry of men with hypogonadism in a urological office, 361 men had T2DM and received standard diabetes treatment including lifestyle recommendations and coaching in a diabetes center. 183 men received TTh with testosterone undecanoate injections 1000 mg/12 weeks following an initial 6-week interval (T-group). 178 men opted against TTh and served as controls (CTRL). Changes over time between groups were compared and adjusted for age, weight, waist circumference, fasting glucose, blood pressure, lipids and quality of life to account for baseline differences between the two groups. 12-year analyses of 3149 patient-years are reported.
Results
Mean (median) follow-up 8.2±3.2 (8) years in the T-group, 9.2±2.8 (10) years in CTRL, baseline age: 60.6±5.4 (T-group) and 63.5±5.0 (CTRL) years (p<0.0001). All but 7 patients were overweight or obese.
All but 4 patients (97.8%) in the T-group and all but 26 (85.4%) in CTRL had hypertension, defined by SBP ≥130 and/or DBP ≥85 mmHg.
Baseline SBP in the T-group was 163.0±13.5, in CTRL 145.6±14.6 mmHg. SBP decreased in the T-group by 33.1±1.2 and increased in CTRL by 18.3±1.2 mmHg, estimated adjusted difference between groups at 12 years: −51.5 mmHg [95% CI: −55.4; −47.6] (p<0.0001 for all). The unadjusted mean SBP after 12 years was 130.2±6.5 mmHg in the T-group and 158.3±15.1 mmHg in CTRL.
Baseline DBP in the T-group was 97.4±10.9, in CTRL 84.8±10.3 mmHg. DBP decreased in the T-group by 20.3±0.9 and increased in CTRL by 12.5±0.9 mmHg, estimated adjusted difference between groups at 12 years: −32.8 mmHg [95% CI: −35.7; −29.9] (p<0.0001 for all). The unadjusted mean DBP after 12 years was 75.4±3.3 mmHg in the T-group and 94.3±8.9 mmHg in CTRL.
Heart rate decreased in the T-group by 3.8±0.5 bpm and increased in CTRL by 2.3±0.5 bpm, estimated adjusted difference between groups at 12 years: −6.0 bpm [95% CI: −7.6; −4.5] (p<0.0001 for all).
Pulse pressure, a surrogate for arterial stiffness, decreased in the T-group by 12.8±0.8 and increased in CTRL by 5.9±0.8, estimated adjusted difference between groups at 12 years: −18.7 [95% CI: −21.1; −16.3] (p<0.0001 for all).
Men in the T-group lost 19.7±0.4% weight, men in CTRL gained 9.1±0.4%, estimated adjusted difference: −28.8% [95% CI: −30.2;-27.4] (p<0.0001 for all).
Medication adherence to testosterone was 100% as all injections were administered in the medical office and documented.
Conclusions
Long-term treatment with testosterone in men with hypogonadism, T2DM and hypertension reduced systolic and diastolic blood pressure, heart rate, and pulse pressure, compared to untreated controls.
Funding Acknowledgement
Type of funding sources: Private company. Main funding source(s): Bayer AG
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Affiliation(s)
- F Saad
- Bayer AG, Berlin, Germany
| | - A Haider
- Private Urology Practice, Bremerhaven, Germany
| | - K S Haider
- Private Urology Practice, Bremerhaven, Germany
| | - G Doros
- Boston University, Boston, United States of America
| | - A Traish
- Boston University, Boston, United States of America
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24
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Bhutta ZA, Sultan F, Ikram A, Haider A, Hafeez A, Islam M. Balancing science and public policy in Pakistan’s COVID-19 response. East Mediterr Health J 2021; 27:798-805. [DOI: 10.26719/emhj.21.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 01/28/2021] [Indexed: 11/09/2022]
Abstract
Background: Coronavirus disease 2019 (COVID-19) has affected the world in an unprecedented manner and South Asian countries were among the first to experience imported cases. Pakistan’s response to COVID-19 has been under scrutiny for its granularity, reach and impact. Aims: to evaluate objectively the chronology and depth of the response to COVID-19 in Pakistan. Methods: We evaluated available national and subnational epidemiological and burden information on COVID-19 cases and deaths in Pakistan, including projection models available to the Government at an early stage of the pandemic. Results: Pakistan, with a population of 215 million and considerable geographic diversity, experienced case introduction from pilgrims returning from the Islamic Republic of Iran, followed by widespread community transmission. The National Command and Operations Centre, established through civilian and military partnership, was critical in fast tracking logistics, information gathering, real-time reporting and smart lockdowns, coupled with a massive cash support programme targeting the poorest sections of society. Cases peaked in June 2020 but the health system was able to cope with the excess workload. Since then, although testing rates remain low (> 300 000 cases confirmed to date), case fatality rates have stabilized, and with 6300 deaths, Pakistan seems to have flattened the COVID-19 curve. Conclusion: Despite notable successes in controlling the pandemic, several weaknesses remain and there are risks of rebound as the economy and educational systems reopen. There is continued need for strong technical and programmatic oversight, linked to civic society engagement and working with religious scholars to ensure nonpharmacological intervention compliance.
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25
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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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Haider A, Shahbaz H. Implications of Ridesharing on Alcohol-Associated Motor Vehicle Crashes: Not Behind the Wheel. JAMA Surg 2021; 156:738-739. [PMID: 34106230 DOI: 10.1001/jamasurg.2021.2236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Adil Haider
- Dean's Office, Medical College, Aga Khan University, Karachi, Pakistan.,Department of Surgery, Aga Khan University, Karachi, Pakistan.,Department of Community Health Sciences, Aga Khan University, Karachi, Pakistan.,Deputy Editor, JAMA Surgery
| | - Hamna Shahbaz
- Dean's Clinical Research Fellowship Program, Aga Khan University, Karachi, Pakistan
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Dinneen E, Grierson J, Haider A, Allen C, Heffernan-Ho D, Clow R, Freeman A, Briggs T, Nathan S, Brew-Graves C, Mallett S, Williams N, Persad R, Aning J, Oxley J, Oakley N, Morgan S, Tahir F, Ahmad I, Dutto L, Salmond J, Marzena R, Ben-Salha I, Kelly J, Shaw G. NeuroSAFE PROOF. Update on a multi-centre, pragmatic, RCT for men undergoing robot-assisted radical prostatectomy: Trial in progress. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01245-8] [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: 10/20/2022]
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Giganti F, Dinneen E, Kasivisvanathan V, Haider A, Freeman A, Emberton M, Shaw G, Moore C, Allen C. Interobserver reproducibility of the Prostate Imaging Quality (PI-QUAL) score for prostate MRI quality. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01289-6] [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: 10/20/2022]
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29
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Alnajjar H, Rewhorn M, Castiglione F, Cayetano Alcaraz A, Schifano N, Akers C, Haider A, Freeman A, Hadway P, Nigam R, Rees R, Mitra A, Alifrangis C, Muneer A. Long-term outcomes of Penile Squamous Cell Carcinoma (SCC) patients with sarcomatoid variant compared to non-sarcomatoid group - An eUROGEN study. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01059-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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30
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Haider K, Haider A, Doros G, Traish A. Improvement of urinary function in men with hypogonadism and obesity receiving long-term treatment with testosterone in comparison to a control group – Experience of 4367 patient-years in a urological office. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00911-8] [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: 11/16/2022]
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Haider A, Shahbaz H. Leveraging Collaborative Care Models to Mitigate Posttraumatic Stress Disorder After Injury: We Can Do This! JAMA Surg 2021; 156:442-443. [PMID: 33688934 DOI: 10.1001/jamasurg.2021.0132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Adil Haider
- Aga Khan University, Karachi, Pakistan.,Deputy Editor, JAMA Surgery
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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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Qumar U, Hassan J, Naz S, Haider A, Raza A, Ul-Hamid A, Haider J, Shahzadi I, Ahmad I, Ikram M. Silver decorated 2D nanosheets of GO and MoS 2serve as nanocatalyst for water treatment and antimicrobial applications as ascertained with molecular docking evaluation. Nanotechnology 2021; 32:255704. [PMID: 33556921 DOI: 10.1088/1361-6528/abe43c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 11/28/2020] [Accepted: 02/08/2021] [Indexed: 06/12/2023]
Abstract
In this work, synthesis of graphene oxide (GO) and reduced graphene oxide (rGO) was realized through a modified Hummers route. Different concentrations (5 and 10 wt%) of Ag were doped in MoS2and rGO using a hydrothermal technique. Synthesized Ag-MoS2and Ag-rGO were evaluated through XRD that confirmed the hexagonal structure of MoS2along with the transformation of GO to Ag-rGO as indicated by a shift in XRD peaks while Mo-O bonding and S=O functional groups were confirmed with FTIR. Morphological information of GO and formation of MoS2nanopetals as well as interlayer spacing were verified through FESEM and HRTEM respectively. Raman analysis was employed to probe any evidence regarding defect densities of GO. Optical properties of GO, MoS2, Ag-rGO, and Ag-MoS2were visualized through UV-vis and PL spectroscopy. Prepared products were employed as nanocatalysts to purify industrial wastewater. Experimental results revealed that Ag-rGO and Ag-MoS2showed 99% and 80% response in photocatalytic activity. Besides, the nanocatalyst (Ag-MoS2and Ag-rGO) exhibited 6.05 mm inhibition zones againstS. aureusgram positive (G+) and 3.05 mm forE. coligram negative (G-) in antibacterial activity. To rationalize biocidal mechanism of Ag-doped MoS2NPs and Ag-rGO,in silicomolecular docking study was employed for two enzymes i.e.β-lactamase and D-alanine-D-alanine ligase B (ddlB) from cell wall biosynthetic pathway and enoyl-[acylcarrier-protein] reductase (FabI) from fatty acid biosynthetic pathway belonging toS. aureus. The present study provides evidence for the development of cost-effective, environment friendly and viable candidate for photocatalytic and antimicrobial applications.
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Affiliation(s)
- U Qumar
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - J Hassan
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - S Naz
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, People's Republic of China
| | - A Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan
| | - A Raza
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - A Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, People's Republic of China
| | - I Shahzadi
- College of Pharmacy, University of the Punjab, Lahore, 54000, Pakistan
| | - I Ahmad
- Department of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
| | - M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, 54000, Punjab, Pakistan
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34
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Bunker CB, Kravvas G, Watchorn R, Spencer A, Ong E, Haider A, Freeman A, Francis NA, Alnajjar H, Muneer A, Dinneen M. Reply to: ‘Does routine histology alter management post-circumcision?’. Journal of Clinical Urology 2020. [DOI: 10.1177/2051415820982755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- CB Bunker
- Department of Dermatology, University College London Hospitals, UK
| | - G Kravvas
- Department of Dermatology, University College London Hospitals, UK
| | - R Watchorn
- Department of Dermatology, Imperial College Healthcare, UK
| | - A Spencer
- Department of Dermatology, Imperial College Healthcare, UK
| | - E Ong
- Department of Dermatology, University College London Hospitals, UK
| | - A Haider
- Department of Histopathology, University College London Hospitals, UK
| | - A Freeman
- Department of Histopathology, University College London Hospitals, UK
| | - NA Francis
- Department of Histopathology, Chelsea and Westminster Hospital, UK
| | - H Alnajjar
- Department of Urology, University College London Hospitals, UK
| | - A Muneer
- Department of Urology, University College London Hospitals, UK
| | - M Dinneen
- Department of Urology, Chelsea and Westminster Hospital, UK
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Affiliation(s)
- Karen Brasel
- Division of Trauma, Critical Care, and Acute Care Surgery, Department of Surgery, Oregon Health & Science University, Portland
| | - Adil Haider
- Aga Khan University School of Medicine, Karachi, Pakistan
| | - Jason Haukoos
- Department of Emergency Medicine, Denver Health Medical Center, Denver, Colorado.,School of Medicine, Department of Emergency Medicine, University of Colorado, Aurora.,Department of Epidemiology, Colorado School of Public Health, Aurora
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Haider A, Bengs S, Warnock G, Akhmedov A, Kozerke S, Kwiatkowski G, Mueller Herde A, Kraemer S, Weber B, Schibli R, Mu L, Kaufmann P, Regitz-Zagrosek V, Ametamey S, Gebhard C. Age-dependent cardiac remodelling – role of sex hormones. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3194] [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
While cardiovascular mortality in women has exceeded those in men, women continue to be underrepresented in cardiovascular clinical trials. Further, preclinical experiments are predominantly conducted in male animals, rendering sex-specific variables contributing to cardiovascular disease largely unknown. As age and menopause remain to be key risk factors for cardiovascular disease in women, the aim of this study was to identify key variables of cardiac remodelling in the aging female and male heart, as well as to assess effects of sex hormone deprivation on left ventricular (LV) morphology, LV function and cardiac sympathetic activity.
Materials and methods
Gonadectomized and sham-operated FVB/N mice of both sexes were subjected to positron emission tomography (PET) and cardiac magnetic resonance (CMR) imaging at the age of 4 (young cohort) and 20 (aged cohort) months (total n=123, 55% females). Following tail-vein injection of [11C]meta-hydroxynorephedrine ([11C]mHED), a widely used PET probe in preclinical and clinical assessment of cardiac sympathetic integrity, animals were scanned and cardiac sympathetic outflow was derived from myocardial [11C]mHED uptake. Cardiac parameters including LV volumes and left ventricular ejection fraction (LVEF) were obtained from electrocardiogram (ECG)-gated CMR imaging.
Results and discussion
A significant increase of LVEF was observed in aging females (p=0.012, Figure 1), but not in males. The latter was not associated with a higher cardiac output, and was a consequence of reduced LV end-systolic volumes (p=0.008), unveiling a substantial reduction of size in the aging female heart. As this age-dependent observation was not present in gonadectomized animals (p=0.414), the lack of growth-stimulating estrogen might account for reduction of cardiac size in aging females. Thus, despite a significantly heightened body weight, female heart size is reduced with age. Accordingly, sufficient cardiac output was maintained via increased heart rate (p=0.005) and cardiac sympathetic activity (p=0.040, Figure 1). Gonadectomy accelerated age-dependent changes in LV morphology and function in female mice. While sex hormone deprivation blunted cardiac sympathetic activity and norepinephrine levels in male mice, an opposite trend was observed in females.
Conclusion
Despite increasing body weight with age, aged female and male hearts maintain a stable circulatory blood supply, however, by distinct mechanisms. While the “shrinking” female heart requires an increased heart rate and cardiac sympathetic activity to compensate for smaller ventricular volumes, aging males maintain cardiac size. Importantly, sex hormone deprivation at a young age accelerates age-dependent changes in LV morphology and function in female mice, but not in male mice. The increased sympathetic activity reflects a higher stress level in aged females that might expose them to a higher cardiac vulnerability at postmenopausal age.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Swiss National Science Foundation; Swissheart Foundation
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Affiliation(s)
- A Haider
- University Hospital Zurich, Department of Nuclear Medicine, Zurich, Switzerland
| | - S Bengs
- University Hospital Zurich, Department of Nuclear Medicine, Zurich, Switzerland
| | - G Warnock
- University Hospital Zurich, Department of Nuclear Medicine, Zurich, Switzerland
| | - A Akhmedov
- University Hospital Zurich, Department of Nuclear Medicine, Zurich, Switzerland
| | - S Kozerke
- Swiss Federal Institute of Technology Zurich (ETH Zurich), Institute for Biomedical Engineering, Zurich, Switzerland
| | - G Kwiatkowski
- Swiss Federal Institute of Technology Zurich (ETH Zurich), Institute for Biomedical Engineering, Zurich, Switzerland
| | - A Mueller Herde
- Swiss Federal Institute of Technology Zurich (ETH Zurich), Institute of Pharmaceutical Sciences, Zurich, Switzerland
| | - S.D Kraemer
- Swiss Federal Institute of Technology Zurich (ETH Zurich), Institute of Pharmaceutical Sciences, Zurich, Switzerland
| | - B Weber
- Swiss Federal Institute of Technology Zurich (ETH Zurich), Institute of Pharmacology and Toxicology, Zurich, Switzerland
| | - R Schibli
- Swiss Federal Institute of Technology Zurich (ETH Zurich), Institute of Pharmaceutical Sciences, Zurich, Switzerland
| | - L Mu
- Swiss Federal Institute of Technology Zurich (ETH Zurich), Institute of Pharmaceutical Sciences, Zurich, Switzerland
| | - P.A Kaufmann
- University Hospital Zurich, Department of Nuclear Medicine, Zurich, Switzerland
| | - V Regitz-Zagrosek
- Charite Universitatsmedizin Berlin, Institute for Gender in Medicine, Berlin, Germany
| | - S.M Ametamey
- Swiss Federal Institute of Technology Zurich (ETH Zurich), Institute of Pharmaceutical Sciences, Zurich, Switzerland
| | - C Gebhard
- University Hospital Zurich, Department of Nuclear Medicine, Zurich, Switzerland
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Saad F, Haider A, Haider K, Doros G, Traish A. Effect of testosterone therapy on cardiovascular risk factors, major adverse cardiovascular events and mortality in men with functional hypogonadism and cardiovascular disease in a real-world registry. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3221] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Cardiovascular safety of testosterone therapy (TTh) in men with functional hypogonadism has been debated.
Purpose
To investigate cardiovascular risk factors and incidence of major adverse cardiovascular events (MACE) and mortality in a high-risk population in a real-world setting.
Methods
Of 773 men with functional (non-organic) hypogonadism in a registry study, 217 had a pre-existing cardiovascular disease. 99 men received parenteral TU 1000 mg/12 weeks following an initial 6-week interval (T-group) for up to 15 years, 118 opted against TTh and served as controls (CTRL). Most measurements were performed 2–4 times a year for approximately 1,800 patient-years. 11-year data were analysed. Changes over time between groups were compared and adjusted for age, weight, waist circumference, fasting glucose, blood pressure, lipids and quality of life to account for baseline differences between the two groups.
Results
Mean baseline age: 61.5±4.6 years (T-group), 63.9±4.9 (CTRL) (p<0.0005).
86.9% in the T-group and 61.9% in CTRL (p<0.0001) were obese at baseline. Mean BMI (kg/m2) declined by 8.3±0.4 in the T-group and increased by 2.5±0.4 in CTRL at 11 years, estimated adjusted difference between groups: −10.8 (p<0.0001 for all). Weight loss was 20.8±0.6% (T-group), weight gain 8.1±0.5% (CTRL), difference between groups: −28.8% (p<0.0001 for all).
99% in the T-group and 97.5% in CTRL (p<0.001) had hypertension at baseline. Mean systolic blood pressure (BP) (mmHg) decreased by 36.2±1.3 (T-group) and increased by 9.3±1.3 (CTRL), difference between groups: −45.5 (p<0.0001 for all). Diastolic BP decreased by 24.0±1.0 (T-group) and increased by 7.7±1.0 (CTRL), difference between groups: −31.7 (p<0.0001 for all).
Lipids (mmol/L): LDL cholesterol decreased by 2.1±0.1 (T-group) and increased by 0.9±0.1 (CTRL), difference between groups: −3.0 (p<0.0001 for all). Non-HDL cholesterol decreased by 5.7±0.4 (T-group) and increased by 4.8±0.4 (CTRL), difference between groups: −10.5 (p<0.0001 for all). Remnant cholesterol decreased by 1.2±0.1 (T-group) and increased by 1.0±0.1 (CTRL), difference between groups: −2.2 (p<0.0001 for all).
67.7% in the T-group and 55.1% in CTRL (NS) had type 2 diabetes (T2DM) at baseline. HbA1c (%) decreased by 3.4±0.2 (T-group) and increased by 2.7±0.2 (CTRL), difference between groups: −6.0 (p<0.0001 for all). 29 men (24.6%) were diagnosed with T2DM during follow-up.
Mortality: 13 deaths (13.1%) in the T-group. 40 (33.9%) in CTRL (p<0.0005). Non-fatal myocardial infarctions: None in the T-group, 31 (26.3%) in CTRL (py0.0001). Non-fatal strokes: None in the T-group, 29 (24.6%) in CTRL (p<0.0001).
Medication adherence to testosterone was 100% as all injections were administered in the medical office and documented.
Conclusions
In men with functional hypogonadism, long-term TTh improves cardiovascular risk factors and reduces cardiovascular events and mortality.
Funding Acknowledgement
Type of funding source: Private company. Main funding source(s): Bayer AG
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Affiliation(s)
- F Saad
- Bayer AG, Berlin, Germany
| | - A Haider
- Private Urology Practice, Bremerhaven, Germany
| | - K.S Haider
- Private Urology Practice, Bremerhaven, Germany
| | - G Doros
- Boston University, Boston, United States of America
| | - A.M Traish
- Boston University, Boston, United States of America
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Zeineddin A, Williams M, Nonez H, Nizam W, Olufajo OA, Ortega G, Haider A, Cornwell EE. Gunshot Injuries in American Trauma Centers: Analysis of the Lethality of Multiple Gunshot Wounds. Am Surg 2020; 87:39-44. [PMID: 32915073 DOI: 10.1177/0003134820949515] [Citation(s) in RCA: 8] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Trauma center care and survival have been improving over the past several years. However, yearly firearm-related deaths have remained near constant at 33 000. One challenge to decreasing gunshot mortality is patients presenting with complex injury patterns from multiple gunshot wounds (GSWs) made possible by high-caliber automated weapons. Our study analyzes outcomes of trauma patients of firearms using the National Trauma Databank (NTDB). METHODS We conducted a retrospective review of the NTDB from the years 2003-2015 for patients with penetrating injuries. We separated patients into groups based on stab wounds, single GSW, and multiple GSW. We performed multivariate logistic regression analyses in which we adjusted for demographics and injury severity. RESULTS Overall, 382 376 patients presenting with penetrating injuries were analyzed. Of those 167 671 had stab, 106 538 single GSW, and 57 819 multiple GSW injuries. Crude mortality was 1.97% for stab wounds, 13.26% for single GSW, and 18.84% for multiple GSW. Adjusted odds ratio (OR) compared with 2003 demonstrates a trend toward decreased mortality for stab wounds (OR range of 0.48-0.69, P < .05 for years 2010-2015). A similar trend was demonstrated in single GSW injuries (OR 0.31-0.83, P < .01 for years 2005-2015). Conversely, multiple GSW injuries did not follow this trend (OR 0.91-1.36 with P > 0.05 for each year). CONCLUSION In contrast to significant improvement in survival in patients with a single GSW injury since 2003, multiple GSW injuries still pose a challenge to trauma care. This warrants further investigation into the efficacy of legislature, and the lack thereof, as well as future preventative measures to this type of injury.
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Affiliation(s)
- Ahmad Zeineddin
- 20814Department of Surgery, Clive O. Callender Howard-Harvard Health Sciences Outcomes Research Center, Howard University College of Medicine, Washington, DC, USA
| | - Mallory Williams
- 20814Department of Surgery, Clive O. Callender Howard-Harvard Health Sciences Outcomes Research Center, Howard University College of Medicine, Washington, DC, USA
| | - Harry Nonez
- 20814Department of Surgery, Clive O. Callender Howard-Harvard Health Sciences Outcomes Research Center, Howard University College of Medicine, Washington, DC, USA
| | - Wasay Nizam
- 20814Department of Surgery, Clive O. Callender Howard-Harvard Health Sciences Outcomes Research Center, Howard University College of Medicine, Washington, DC, USA
| | - Olubode A Olufajo
- 20814Department of Surgery, Clive O. Callender Howard-Harvard Health Sciences Outcomes Research Center, Howard University College of Medicine, Washington, DC, USA
| | - Gezzer Ortega
- 483907Department of Surgery, Center for Surgery and Public Health, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Adil Haider
- 483907Department of Surgery, Center for Surgery and Public Health, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Edward E Cornwell
- 20814Department of Surgery, Clive O. Callender Howard-Harvard Health Sciences Outcomes Research Center, Howard University College of Medicine, Washington, DC, USA
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Kravvas G, Ge L, Ng J, Shim TN, Doiron PR, Watchorn R, Kentley J, Panou E, Dinneen M, Freeman A, Jameson C, Haider A, Francis N, Minhas S, Alnajjar H, Muneer A, Bunker CB. The management of penile intraepithelial neoplasia (PeIN): clinical and histological features and treatment of 345 patients and a review of the literature. J DERMATOL TREAT 2020; 33:1047-1062. [DOI: 10.1080/09546634.2020.1800574] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- G. Kravvas
- Department of Dermatology, University College London Hospitals, London, UK
| | - L. Ge
- Department of Dermatology, University College London Hospitals, London, UK
| | - J. Ng
- Department of Dermatology, Chelsea & Westminster Hospital, London, UK
| | - T. N. Shim
- Department of Dermatology, University College London Hospitals, London, UK
| | - P. R. Doiron
- Department of Dermatology, University College London Hospitals, London, UK
| | - R. Watchorn
- Department of Dermatology, University College London Hospitals, London, UK
| | - J. Kentley
- Department of Dermatology, Chelsea & Westminster Hospital, London, UK
| | - E. Panou
- Department of Dermatology, University College London Hospitals, London, UK
| | - M. Dinneen
- Department of Urology, Chelsea & Westminster Hospital, London, UK
| | - A. Freeman
- Department of Histopathology, University College London Hospitals, London, UK
| | - C. Jameson
- Department of Histopathology, University College London Hospitals, London, UK
| | - A. Haider
- Department of Histopathology, University College London Hospitals, London, UK
| | - N. Francis
- Department of Histopathology, Imperial College Hospitals, London, UK
| | - S. Minhas
- Department of Urology, Imperial College Hospitals, London, UK
| | - H. Alnajjar
- Department of Urology, University College London Hospitals, London, UK
| | - A. Muneer
- Department of Urology, University College London Hospitals, London, UK
| | - C. B. Bunker
- Department of Dermatology, University College London Hospitals, London, UK
- Department of Dermatology, Chelsea & Westminster Hospital, London, UK
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Altaf S, Haider A, Naz S, Ul-Hamid A, Haider J, Imran M, Shahzadi A, Naz M, Ajaz H, Ikram M. Comparative Study of Selenides and Tellurides of Transition Metals (Nb and Ta) with Respect to its Catalytic, Antimicrobial, and Molecular Docking Performance. Nanoscale Res Lett 2020; 15:144. [PMID: 32643064 PMCID: PMC7343698 DOI: 10.1186/s11671-020-03375-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 06/23/2020] [Indexed: 05/13/2023]
Abstract
The present research is a comparative study that reports an economical and accessible method to synthesize niobium (Nb) and Tantalum (Ta) selenides and tellurides with useful application in the removal of pollutants in textile, paper, and dyeing industries as well as in medical field. In this study, solid-state process was used to generate nanocomposites and various characterization techniques were employed to compare two groups of materials under investigation. Structure, morphology, elemental constitution, and functional groups of synthesized materials were analyzed with XRD, FESEM coupled with EDS, FTIR, and Raman spectroscopy, respectively. HR-TEM images displayed nanoscale particles with tetragonal and monoclinic crystal structures. The optical properties were evaluated in terms of cut-off wavelength and optical band gap using UV-visible spectroscopy. A comparative behavior of both groups of compounds was assessed with regards to their catalytic and microcidal properties. Extracted nanocomposites when used as catalysts, though isomorphs of each other, showed markedly different behavior in catalytic degradation of MB dye in the presence of NaBH4 that was employed as a reducing agent. This peculiar deviation might be attributed to slight structural differences between them. Escherichia coli and Staphylococcus aureus (G -ve and + ve bacteria, respectively) were designated as model strains for in vitro antibacterial tests of both clusters by employing disk diffusion method. Superior antibacterial efficacy was observed for telluride system (significant inhibition zones of 26-35 mm) compared with selenide system (diameter of inhibition zone ranged from 0.8 mm to 1.9 mm). In addition, molecular docking study was undertaken to ascertain the binding interaction pattern between NPs and active sites in targeted cell protein. The findings were in agreement with antimicrobial test results suggesting NbTe4 to be the best inhibitor against FabH and FabI enzymes.
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Affiliation(s)
- S Altaf
- Department of Chemistry, University of Engineering and Technology, Lahore, 54000, Pakistan
| | - A Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore, Punjab, 54000, Pakistan
| | - S Naz
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - A Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - M Imran
- State key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing, 100029, China
| | - A Shahzadi
- University College of Pharmacy, University of the Punjab, Lahore, 54000, Pakistan
| | - M Naz
- Biochemistry Lab, Department of Chemistry, Government College University, Lahore, Punjab, 54000, Pakistan
| | - H Ajaz
- Department of Chemistry, University of Engineering and Technology, Lahore, 54000, Pakistan
| | - M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University, Lahore, Punjab, 54000, Pakistan.
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Haider K, Haider A, Doros G, Traish A. An update on the improvement of urinary function in hypogonadal men receiving long-term treatment with testosterone compared to a hypogonadal control group totalling 7116 patient-years of clinical experience. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32635-5] [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: 11/24/2022] Open
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Goralnick E, Ezeibe C, Chaudhary MA, McCarty J, Herrera-Escobar JP, Andriotti T, de Jager E, Ospina-Delgado D, Goolsby C, Hunt R, Weissman JS, Haider A, Jacobs L, Andrade E, Brown J, Bulger EM, Butler FK, Callaway D, Caterson EJ, Choudhry NK, Davis MR, Eastman A, Eastridge BJ, Epstein JL, Evans CL, Gausche-Hill M, Gestring ML, Goldberg SA, Hanfling D, Holcomb JB, Jonson CO, King DR, Kivlehan S, Kotwal RS, Krohmer JR, Levy-Carrick N, Levy M, Meléndez Lugo JJ, Mooney DP, Neal MD, Niskanen R, O'Neill P, Park H, Pons PT, Prytz E, Rasmussen TE, Remley MA, Riviello R, Salim A, Shackelfold S, Smith ER, Stewart RM, Swaroop M, Ward K, Uribe-Leitz T, Jarman MP, Ortega G. Defining a Research Agenda for Layperson Prehospital Hemorrhage Control: A Consensus Statement. JAMA Netw Open 2020; 3:e209393. [PMID: 32663307 DOI: 10.1001/jamanetworkopen.2020.9393] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
IMPORTANCE Trauma is the leading cause of death for US individuals younger than 45 years, and uncontrolled hemorrhage is a major cause of trauma mortality. The US military's medical advancements in the field of prehospital hemorrhage control have reduced battlefield mortality by 44%. However, despite support from many national health care organizations, no integrated approach to research has been made regarding implementation, epidemiology, education, and logistics of prehospital hemorrhage control by layperson immediate responders in the civilian sector. OBJECTIVE To create a national research agenda to help guide future work for prehospital hemorrhage control by laypersons. EVIDENCE REVIEW The 2-day, in-person, National Stop the Bleed (STB) Research Consensus Conference was conducted on February 27 to 28, 2019, to identify and achieve consensus on research gaps. Participants included (1) subject matter experts, (2) professional society-designated leaders, (3) representatives from the federal government, and (4) representatives from private foundations. Before the conference, participants were provided a scoping review on layperson prehospital hemorrhage control. A 3-round modified Delphi consensus process was conducted to determine high-priority research questions. The top items, with median rating of 8 or more on a Likert scale of 1 to 9 points, were identified and became part of the national STB research agenda. FINDINGS Forty-five participants attended the conference. In round 1, participants submitted 487 research questions. After deduplication and sorting, 162 questions remained across 5 a priori-defined themes. Two subsequent rounds of rating generated consensus on 113 high-priority, 27 uncertain-priority, and 22 low-priority questions. The final prioritized research agenda included the top 24 questions, including 8 for epidemiology and effectiveness, 4 for materials, 9 for education, 2 for global health, and 1 for health policy. CONCLUSIONS AND RELEVANCE The National STB Research Consensus Conference identified and prioritized a national research agenda to support laypersons in reducing preventable deaths due to life-threatening hemorrhage. Investigators and funding agencies can use this agenda to guide their future work and funding priorities.
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Affiliation(s)
- Eric Goralnick
- Department of Emergency Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- Center for Surgery and Public Health, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Chibuike Ezeibe
- Center for Surgery and Public Health, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Muhammad Ali Chaudhary
- Center for Surgery and Public Health, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Justin McCarty
- Center for Surgery and Public Health, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Juan P Herrera-Escobar
- Center for Surgery and Public Health, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Tomas Andriotti
- Center for Surgery and Public Health, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Elzerie de Jager
- Center for Surgery and Public Health, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | | | - Craig Goolsby
- Department of Military and Emergency Medicine, Uniformed Services University, Bethesda, Maryland
- National Center for Disaster Medicine and Public Health, Rockville, Maryland
| | - Richard Hunt
- National Health Care Preparedness Program, Department of Health and Human Services, Washington, DC
| | - Joel S Weissman
- Center for Surgery and Public Health, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Adil Haider
- Center for Surgery and Public Health, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
- Office of the Dean, Medical School, Aga Khan University, Karachi, Pakistan
| | - Lenworth Jacobs
- Department of Surgery, Hartford Hospital, Hartford, Connecticut
| | | | - Erin Andrade
- Department of Surgery, Washington University in St Louis, Missouri
| | - Jeremy Brown
- Department of Emergency Medicine, George Washington University School of Medicine, Washington, DC
| | | | - Frank K Butler
- Defense Health Agency, Joint Trauma System, Joint Base San Antonio-Fort Sam Houston, Texas
| | - David Callaway
- Department of Emergency Medicine, Carolinas Medical Center, Atrium Health, Charlotte, North Carolina
| | - Edward J Caterson
- Division of Plastic Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Niteesh K Choudhry
- Center for Healthcare Delivery Sciences, Harvard Medical School, Boston, Massachusetts
| | - Michael R Davis
- Combat Casualty Care Research Program Army Medical Research and Materiel Command, Fort Detrick, Maryland
| | - Alex Eastman
- Countering Weapons of Mass Destruction Office Department of Homeland Security, Washington, DC
| | - Brian J Eastridge
- Department of Surgery, The University of Texas Health Science Center at San Antonio
| | - Jonathan L Epstein
- Training Services Division, American Red Cross, American Red Cross, Washington, DC
| | - Conor L Evans
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston
| | - Marianne Gausche-Hill
- Department of Emergency Medicine, Harbor-University of California, Los Angeles Medical Center, Torrance
| | - Mark L Gestring
- Department of Surgery, Rochester Medical Center, Rochester, New York
| | - Scott A Goldberg
- Department of Emergency Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Dan Hanfling
- Forum on Medical and Public Health Preparedness for Catastrophic Events, National Academies of Science, Washington, DC
| | | | - Carl-Oscar Jonson
- Center for Disaster Medicine and Traumatology, Linköping University, Linköping, Sweden
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - David R King
- Department of Surgery, Massachusetts General Hospital, Boston
| | - Sean Kivlehan
- Department of Emergency Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Russ S Kotwal
- Joint Trauma System, Defense Health Agency Combat Support, San Antonio, Texas
| | - Jon R Krohmer
- Office of Emergency Medical Services, National Highway Traffic Safety Administration, Washington, DC
| | - Nomi Levy-Carrick
- Department of Psychiatry, Brigham and Women's Hospital, Boston, Massachusetts
| | - Matthew Levy
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | | | - David P Mooney
- Department of Surgery, Boston Children's Hospital, Boston, Massachusetts
| | - Matthew D Neal
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | | | | | - Habeeba Park
- Department of Surgery, University of Maryland Shock Trauma Center, Baltimore
| | - Peter T Pons
- Department of Emergency Medicine, University of Colorado School of Medicine, Denver
| | - Erik Prytz
- Department of Computer and Information Science, Linköping University, Linköping, Sweden
| | - Todd E Rasmussen
- Department of Surgery, F. Edward Hébert School of Medicine Uniformed Services University, Bethesda, Maryland
| | - Michael A Remley
- Joint Trauma System, Defense Health Agency Combat Support, San Antonio, Texas
| | - Robert Riviello
- Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Ali Salim
- Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Stacy Shackelfold
- Joint Trauma System, Defense Health Agency Combat Support, San Antonio, Texas
| | - E Reed Smith
- Department of Emergency Medicine, George Washington University School of Medicine, Washington, DC
| | - Ronald M Stewart
- Department of Surgery, The University of Texas Health Science Center at San Antonio
| | - Mamta Swaroop
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Kevin Ward
- Department of Emergency Medicine, University of Michigan, Ann Arbor
- Department of Biomedical Engineering, University of Michigan, Ann Arbor
| | | | - Molly P Jarman
- Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Gezzer Ortega
- Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
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Kaul A, Katelaris A, Haider A, Alnajjar H, Muneer A. Microdissection oncoTESE (micro-oncoTESE) in azoospermic men - is there a difference in surgical sperm retrieval (SSR) rates for benign and malignant testicular lesions? An eUROGEN centre study. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32829-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Ikram M, Umar E, Raza A, Haider A, Naz S, Ul-Hamid A, Haider J, Shahzadi I, Hassan J, Ali S. Dye degradation performance, bactericidal behavior and molecular docking analysis of Cu-doped TiO 2 nanoparticles. RSC Adv 2020; 10:24215-24233. [PMID: 35516171 PMCID: PMC9055104 DOI: 10.1039/d0ra04851h] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [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: 06/01/2020] [Accepted: 06/18/2020] [Indexed: 11/21/2022] Open
Abstract
Copper-doped TiO2 was prepared with a sol-gel chemical method. Various concentrations (3, 6, and 9 wt%) of Cu dopant were employed. Several techniques were implemented to assess the structural, optical, morphological and chemical properties of the synthesized samples. Evaluation of elemental composition using SEM-EDS and XRF techniques showed the presence of dopant element in the prepared samples. XRD analysis confirmed the presence of anatase (TiO2) phase with interstitial doping. Incorporation of dopant was observed to enhance the crystallinity and increase the crystallite size of the synthesized products. SAED profiles revealed a high degree of crystallinity in the prepared specimens, which was also evident in the XRD spectra. Optical properties studied using UV-vis spectroscopy depicted a shift of the maximum absorption to the visible region (redshift) that signified a reduction in the band gap energy of Cu-doped TiO2 samples. Examination of morphological features with scanning and high-resolution transmission electron microscopes revealed the formation of spherical nanoparticles with a tendency to agglomerate with increasing dopant concentration. Molecular vibrations and the formation of Ti-O-Ti bonds were revealed through FTIR spectra. PL spectroscopy recorded the trapping efficiency and migration of charge carriers, which exhibited electron-hole recombination behavior. Doped nanostructures showed enhanced bactericidal performance and synergism against S. aureus and E. coli. In summary, Cu-doped TiO2 nanostructures were observed to impede bacteria effectively, which is deemed beneficial in overcoming ailments caused by pathogens such as microbial etiologies. Furthermore, molecular docking analysis was conducted to study the interaction of Cu-doped TiO2 nanoparticles with multiple proteins namely β-lactamase (binding score: -4.91 kcal mol-1), ddlB (binding score: -5.67 kcal mol-1) and FabI (binding score: -6.13 kcal mol-1) as possible targets with active site residues. Dye degradation/reduction of control and Cu-doped samples were studied through absorption spectroscopy. The obtained outcomes of the performed experiment indicated that the photocatalytic activity of Cu-TiO2 enhanced with increasing dopant concentration, which is thought to be due to a decreased rate of electron-hole pair recombination. Consequently, it is suggested that Cu-TiO2 can be exploited as an effective candidate for antibacterial and dye degradation applications.
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Affiliation(s)
- M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore Punjab 54000 Pakistan +923005406667
| | - E Umar
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - A Raza
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - 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
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences Tianjin 300308 China
| | - I Shahzadi
- College of Pharmacy, University of the Punjab Lahore 54000 Pakistan
| | - J Hassan
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - 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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Haider K, Haider A. P-02-54 Improvement of Erectile Function in Hypogonadal Men With Class III Adipositas Receiving Long-Term Treatment With Testosterone Compared to a Hypogonadal Control Group for UP to 11 Years. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2020.04.206] [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: 11/26/2022]
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Haider A, Haider K. P-02-60 Improvement of Erectile Function in Hypogonadal, Overweight Men Receiving Long-Term Treatment With Testosterone Compared to a Hypogonadal Control Group for UP to 11 Years. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2020.04.212] [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: 10/24/2022]
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Haider K, Haider A. HP-3-6 Improvement of Erectile Function in Hypogonadal Men With Normal Weight Receiving Long-Term Treatment With Testosterone Compared to a Hypogonadal Control Group for UP to 11 Years. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2020.04.125] [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: 10/24/2022]
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Qumar U, Ikram M, Imran M, Haider A, Ul-Hamid A, Haider J, Riaz KN, Ali S. Synergistic effect of Bi-doped exfoliated MoS 2 nanosheets on their bactericidal and dye degradation potential. Dalton Trans 2020; 49:5362-5377. [PMID: 32255457 DOI: 10.1039/d0dt00924e] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Nanosheets incorporated with biological reducing agents are widely used to minimize the toxic effects of chemicals. Biologically amalgamated metal oxide nanomaterials have crucial importance in nanotechnology. In this study, bare and bismuth (Bi)-doped molybdenum disulfide (MoS2) nanosheets were synthesized via a hydrothermal method. Different Bi weight ratios of 2.5, 5, 7.5 and 10% were incorporated in a fixed amount of MoS2 to evaluate its catalytic and antimicrobial activities. Doped nanosheets were characterized using XRD, FTIR and UV-vis spectroscopy, FESEM, HRTEM, Raman, PL, DSC/TGA, EDX, XRF and XPS analysis. The XRD spectra confirmed that the doped nanosheets exhibit a hexagonal structure and their crystallite size increases gradually upon doping. The morphology and interlayer d-spacing of doped MoS2 were determined by FESEM and HRTEM. The presence of functional groups in the doped nanosheets was confirmed using FTIR, PL and Raman analysis. The absorption intensity increased and the corresponding measured band gap energy decreased with doping. The thermal stability and weight loss behaviour of the prepared samples were studied using DSC/TGA. The doped MoS2 nanosheets showed a higher catalytic potential compared to undoped MoS2. The doped Bi nanosheets exhibited higher antimicrobial activity against Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli) at different concentrations of Bi (0.075 and 0.1), showing a tendency to counter the emerging drug resistance against pathogenic bacterial diseases. Consequently, significant inhibition zones were recorded against (MDR) S. aureus ranging from 2.25 to 3.3 mm and 3.25 to 5.05 mm at low and high concentrations of doped-Bi nanosheets and against Gram-negative E. coli ranging from 1 to 1.45 mm at high concentrations. In conclusion, the Bi-doped MoS2 nanocomposite has exhibited significant potential for use in industrial dye degradation applications. Its antibacterial properties can also mitigate health risks associated with the presence of several well-known pathogens in the environment.
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Affiliation(s)
- U Qumar
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, 54000, Punjab, Pakistan. and Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, 54000, Punjab, Pakistan.
| | - M Imran
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing Engineering Center 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
| | - A Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - K N Riaz
- Department of Physics, University of Gujrat, HH Campus, Gujrat, 50700, Pakistan
| | - 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, Jahan I, Haider A, Hassan J, Ul-Hamid A, Imran M, Haider J, Shahzadi A, Shahbaz A, Ali S. Bactericidal behavior of chemically exfoliated boron nitride nanosheets doped with zirconium. Appl Nanosci 2020; 10:2339-2349. [PMID: 32341906 PMCID: PMC7183257 DOI: 10.1007/s13204-020-01412-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 04/12/2020] [Indexed: 12/13/2022]
Abstract
In this work, boron nitride nanosheets (BNNS) were produced through chemical exfoliation of bulk boron nitride (BN). Furthermore, hydrothermal technique was used to incorporate various concentrations (2.5, 5, 7.5, and 10 wt%) of zirconium (Zr) as a dopant. The prepared undoped and doped BN samples were evaluated for its antimicrobial activity against E. coli and S. aureus. Structural analysis was undertaken using x-ray diffraction which identified the presence of hexagonal BN. FTIR and Raman spectroscopy were utilized to outline IR fingerprint and electronic properties of the synthesized material. Morphological information was obtained through micrographs extracted using field emission scanning electron spectroscope (FESEM) and high resolution transmission electron microscope (HRTEM), while d-spacing was also calculated through HRTEM analysis. Optical properties and emission spectra were examined by applying UV–vis and photoluminescence spectroscope (PL); whereas, band gap analysis was carried out via Tauc plot. Zr-doped BN nanosheets at increasing concentrations (0.5, 1.0 mg/50 μl) revealed enhanced antibacterial activity against E. coli compared to S. aureus (p < 0.05).
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Affiliation(s)
- M Ikram
- 1Solar Cell Applications Research Laboratory, Department of Physics, Government College University Lahore, Punjab, 54000 Pakistan
| | - I Jahan
- 1Solar Cell Applications Research Laboratory, Department of Physics, Government College University Lahore, Punjab, 54000 Pakistan.,2Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - A Haider
- 3Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, LahorePunjab, 54000 Pakistan
| | - J Hassan
- 2Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - A Ul-Hamid
- 4Centre for Engineering Research, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
| | - M Imran
- 5State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing Engineering Centre for Hierarchical Catalysts, Beijing, 100029 China
| | - J Haider
- 6Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308 China
| | - A Shahzadi
- 7University College of Pharmacy, University of the Punjab, Lahore, 54000 Pakistan
| | - A Shahbaz
- 8Department of Physics, Government College University Lahore, Punjab, 54000 Pakistan
| | - S Ali
- 2Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
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Ikram M, Abbasi S, Haider A, Naz S, Ul-Hamid A, Imran M, Haider J, Ghaffar A. Bimetallic Ag/Cu incorporated into chemically exfoliated MoS 2 nanosheets to enhance its antibacterial potential: in silico molecular docking studies. Nanotechnology 2020; 31:275704. [PMID: 32182604 DOI: 10.1088/1361-6528/ab8087] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Bimetallic Ag and Cu (1:1 wt%) nanoparticles (NPs) were synthesized and annealed at temperatures of 400 °C, 600 °C, and 800 °C using chemical reduction techniques. High temperature annealed (at 800 °C) Ag:Cu sample ratios (5 and 10 wt%) were used to dope MoS2. A wide variety of techniques including X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning, high resolution transmission electron microscopy, differential scanning calorimetry, thermogravimetric analysis, Raman, photoluminescence, and ultraviolet visible spectrophotometry were used to study the morphology, structure, functional groups, excitons recombination, and thermal and optical properties of both annealed and doped samples. The antimicrobial activity of the prepared products was tested on the MRSA-superbug with ciprofloxacin antibiotic as the reference drug. Statistically significant (P < 0.05) inhibition zones (mm) were recorded for the as-synthesized Ag-Cu, heat-treated samples at 400 °C, 600 °C, and 800 °C, doped Ag-Cu/MoS2 5% and Ag-Cu/MoS2 10% which ranged from 6.35-9.85 mm and 8.60-11.75 mm at (0.5, 1.0 mg 50 μl-1) concentrations compared with ciprofloxacin 12.55 mm and DIW 0 mm inhibition zones, respectively. Overall Ag-Cu NPs alone and with different temperature treatments showed less antibacterial efficacy compared with Ag-Cu/MoS2 5% and 10%. Furthermore, molecular docking studies were employed to unveil the binding interaction pattern of NPs in the active pocket of β-lactamase enzyme suggested that it could be a potential inhibitor that could be further evaluated for its enzyme inhibition characteristics.
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Affiliation(s)
- M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Punjab 54000 Pakistan
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