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Latif F, Iqbal R, Ambreen F, Kousar S, Ahmed T, Aziz S. Studies on bioaccumulation patterns, biochemical and genotoxic effects of copper on freshwater fish, Catla catla: an in vivo analysis. BRAZ J BIOL 2024; 84:e256905. [DOI: 10.1590/1519-6984.256905] [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: 10/01/2021] [Accepted: 11/10/2021] [Indexed: 11/22/2022] Open
Abstract
Abstract During present study, the copper (Cu) mediated oxidative stress was measured that induced DNA damage by concentrating in the tissues of fish, Catla catla (14.45±1.24g; 84.68±1.45mm) (Hamilton,1822). Fish fingerlings were retained in 5 groups for 14, 28, 42, 56, 70 and 84 days of the exposure period. They were treated with 2/3, 1/3, 1/4 and 1/5 (T1-T4) of 96h lethal concentration of copper. Controls were run along with all the treatments for the same durations. A significant (p < 0.05) dose and time dependent concentration of Cu was observed in the gills, liver, kidney, muscles, and brain of C. catla. Among organs, the liver showed a significantly higher concentration of Cu followed by gills, kidney, brain, and muscles. Copper accumulation in these organs caused a significant variation in the activities of enzymes viz. superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD). The SOD activity varied significantly in response to the exposure time of Cu as 56 > 70 > 42 > 84 > 28 > 14 days while CAT activity exhibited an inverse relationship with the increase in Cu concentration. POD activity showed a significant rise with an increase in Cu exposure duration. Comet assay exhibited significant DNA damage in the peripheral erythrocytes of Cu exposed C. catla. Among four exposure concentrations, 2/3rd of LC50 (T1) caused significantly higher damage to the nuclei compared to control. Increased POD and SOD activity, as well as a decrease in CAT activity in response to Cu, demonstrates the involvement of a protective mechanism against reactive oxygen species (ROS), whereas increased ROS resulted in higher DNA damage. These above-mentioned molecular markers can be efficiently used for the biomonitoring of aquatic environments and conservation of edible fish fauna.
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Affiliation(s)
- F. Latif
- Bahauddin Zakariya University, Pakistan
| | - R. Iqbal
- Bahauddin Zakariya University, Pakistan
| | - F. Ambreen
- Government College Women University, Pakistan
| | - S. Kousar
- Government College Women University, Pakistan
| | - T. Ahmed
- Khwaja Fareed University of Engineering and Information Technology, Pakistan
| | - S. Aziz
- University of Agriculture, Pakistan
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Alfeel AH, Hussein SEO, Elsayed Yousif TY, Babker AMA, Alamin Altoum AE, Mohamed AN, Elzein HO, Ahmed T, Saboor M, Osman HA, Kumar P, Ali H, Abdalhabib EK. Association between oxidative stress, antioxidant enzymes, and homocysteine in patients with polycystic ovary syndrome. Eur Rev Med Pharmacol Sci 2023; 27:10631-10641. [PMID: 37975388 DOI: 10.26355/eurrev_202311_34343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
OBJECTIVE Polycystic ovary syndrome (PCOS) is a prevalent health condition that commonly affects adolescent girls and young women. The purpose of this study was to evaluate the correlation between levels of total glutathione (TG), reduced glutathione (GSH), superoxide dismutase (SOD), lipid peroxidation, and homocysteine with PCOS. PATIENTS AND METHODS This study employed a cross-sectional case-control design, involving a target population of 305 Sudanese females. Among them, 205 individuals were categorized as cases, and 100 served as controls. The TG, GSH, SOD, lipid peroxidation, and homocysteine levels were measured in the serum of study participants through enzyme-linked immunosorbent essay. RESULTS Total glutathione (1,174.5 ± 271.4 vs. 986.1 ± 191.5, p = 0.01), GSH (801.3 ± 132.2 vs. 748.6 ± 103.1, p = 0.007), SOD (225.2 ± 57.8 vs. 195.5 ± 49.6, p = 0.009), lipid peroxidation (3.4 ± 1.1 vs. 2.4 ± 0.7, p = 0.03), and homocysteine (14.9 ± 2.1 vs. 13.5 ± 1.6, p = 0.04), showed significant differences between the two groups (cases vs. controls). A moderate positive correlation between TG, GSH, SOD, lipid peroxidation, homocysteine, BMI, age, and duration of PCOS was observed. Furthermore, a strong positive correlation between BMI, age, and duration of PCOS was noted within the patient group. CONCLUSIONS In conclusion, this study demonstrates that patients with PCOS have elevated levels of TG, GSH, SOD, lipid peroxidation, and homocysteine compared to the control group. These findings suggest a potential association between PCOS and oxidative stress, lipid metabolism, and homocysteine pathways. Moreover, the observed positive correlation with BMI, age, and duration of PCOS indicates the importance of these factors in disease progression.
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Affiliation(s)
- A H Alfeel
- Department of Medical Laboratory Sciences, College of Health Sciences, Gulf Medical University, Ajman, United Arab Emirates.
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Kandil S, Tharwat AI, Mohsen SM, Eldeeb M, Abdallah W, Hilal A, Sweed H, Mortada M, Arif E, Ahmed T, Elshafie A, Youssef T, Zaki M, El-Gendy Y, Ebied E, Hamad S, Habil I, Dabbous H, El-Said A, Mostafa Y, Girgis S, Mansour O, El-Anwar A, Omar A, Saleh A, El-Meteini M. Developing a mortality risk prediction model using data of 3663 hospitalized COVID-19 patients: a retrospective cohort study in an Egyptian University Hospital. BMC Pulm Med 2023; 23:57. [PMID: 36750802 PMCID: PMC9903412 DOI: 10.1186/s12890-023-02345-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 01/31/2023] [Indexed: 02/09/2023] Open
Abstract
PURPOSE Since the declaration of COVID-19 as a pandemic, a wide between-country variation was observed regarding in-hospital mortality and its predictors. Given the scarcity of local research and the need to prioritize the provision of care, this study was conducted aiming to measure the incidence of in-hospital COVID-19 mortality and to develop a simple and clinically applicable model for its prediction. METHODS COVID-19-confirmed patients admitted to the designated isolation areas of Ain-Shams University Hospitals (April 2020-February 2021) were included in this retrospective cohort study (n = 3663). Data were retrieved from patients' records. Kaplan-Meier survival and Cox proportional hazard regression were used. Binary logistic regression was used for creating mortality prediction models. RESULTS Patients were 53.6% males, 4.6% current smokers, and their median age was 58 (IQR 41-68) years. Admission to intensive care units was 41.1% and mortality was 26.5% (972/3663, 95% CI 25.1-28.0%). Independent mortality predictors-with rapid mortality onset-were age ≥ 75 years, patients' admission in critical condition, and being symptomatic. Current smoking and presence of comorbidities particularly, obesity, malignancy, and chronic haematological disorders predicted mortality too. Some biomarkers were also recognized. Two prediction models exhibited the best performance: a basic model including age, presence/absence of comorbidities, and the severity level of the condition on admission (Area Under Receiver Operating Characteristic Curve (AUC) = 0.832, 95% CI 0.816-0.847) and another model with added International Normalized Ratio (INR) value (AUC = 0.842, 95% CI 0.812-0.873). CONCLUSION Patients with the identified mortality risk factors are to be prioritized for preventive and rapid treatment measures. With the provided prediction models, clinicians can calculate mortality probability for their patients. Presenting multiple and very generic models can enable clinicians to choose the one containing the parameters available in their specific clinical setting, and also to test the applicability of such models in a non-COVID-19 respiratory infection.
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Affiliation(s)
- Sahar Kandil
- Department of Community, Environmental, and Occupational Medicine, Faculty of Medicine, Ain Shams University, 38 Ramses St., Abbassia Square, Cairo, 1156, Egypt.
| | - Ayman I. Tharwat
- grid.7269.a0000 0004 0621 1570Department of Anaesthesia, Intensive Care and Pain Management, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Sherief M. Mohsen
- grid.7269.a0000 0004 0621 1570Department of General Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mai Eldeeb
- grid.7269.a0000 0004 0621 1570Department of Internal Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Waleed Abdallah
- grid.7269.a0000 0004 0621 1570Department of Anaesthesia, Intensive Care and Pain Management, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Amr Hilal
- grid.7269.a0000 0004 0621 1570Department of Anaesthesia, Intensive Care and Pain Management, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Hala Sweed
- grid.7269.a0000 0004 0621 1570Department of Geriatric Medicine and Gerontology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mohamed Mortada
- grid.7269.a0000 0004 0621 1570Department of Geriatric Medicine and Gerontology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Elham Arif
- grid.7269.a0000 0004 0621 1570Department of Geriatric Medicine and Gerontology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Tarek Ahmed
- grid.7269.a0000 0004 0621 1570Department of Internal Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Ahmed Elshafie
- grid.7269.a0000 0004 0621 1570Department of Internal Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Tarek Youssef
- grid.7269.a0000 0004 0621 1570Department of General Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mohamed Zaki
- grid.7269.a0000 0004 0621 1570Department of General Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Yasmin El-Gendy
- grid.7269.a0000 0004 0621 1570Department of Paediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Essam Ebied
- grid.7269.a0000 0004 0621 1570Department of General Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Safwat Hamad
- grid.7269.a0000 0004 0621 1570Department of Scientific Computing, Faculty of Computer and Information Sciences, Ain Shams University, Cairo, Egypt
| | - Ihab Habil
- grid.7269.a0000 0004 0621 1570Department of Community, Environmental, and Occupational Medicine, Faculty of Medicine, Ain Shams University, 38 Ramses St., Abbassia Square, Cairo, 1156 Egypt
| | - Hany Dabbous
- grid.7269.a0000 0004 0621 1570Department of Hepatology and Infectious Diseases, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Amr El-Said
- grid.7269.a0000 0004 0621 1570Department of Anaesthesia, Intensive Care and Pain Management, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Yasser Mostafa
- grid.7269.a0000 0004 0621 1570Department of Chest Diseases, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Samia Girgis
- grid.7269.a0000 0004 0621 1570Department of Clinical Pathology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Ossama Mansour
- grid.7269.a0000 0004 0621 1570Department of Otolaryngology and Head and Neck Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Ali El-Anwar
- grid.7269.a0000 0004 0621 1570Department of General Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Ashraf Omar
- grid.7269.a0000 0004 0621 1570Department of General Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Ayman Saleh
- grid.7269.a0000 0004 0621 1570Department of Cardiology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mahmoud El-Meteini
- grid.7269.a0000 0004 0621 1570Department of General Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt ,grid.7269.a0000 0004 0621 1570Department of Hepatobiliary Surgery and Liver Transplantation, Faculty of Medicine, Ain Shams Centre for Organ Transplantation (ASCOT),, Ain Shams University, Cairo, Egypt
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Ahmed T, Rahman N, Tasfia R, Farhana J, Hasan T, Sarwar N. Effects of Non-Thermal Processing Methods on Physicochemical, Bioactive, and Microbiological Properties of Fresh Pineapple (Ananas comosus L. Merr.) Juice. JFQHC 2022. [DOI: 10.18502/jfqhc.9.3.11150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Background: Pineapple juice processing is an art of preservation, and the processing technologies play important role in pineapple juice quality. Therefore, this study aimed to explore the potential impacts of non-thermal processing methods on the physicochemical, bioactive, and microbiological properties of fresh pineapple juice.
Methods: Extracted juices were subjected to several non-thermal processes including microwave processing, vacuum evaporation, mild pasteurization, pulsed electric field, and ultra-sonication. Physicochemical properties including Total Soluble Solids (TSS), pH, titratable acidity, and color; Total Phenolic Content (TPC); Total Anthocyanin Content (TAC); antioxidant capacity; and microbiological properties were evaluated. Data were statistically analyzed by Minitab statistical software (version: 18.1).
Results: TSS, pH, acidity (%) of processed juices ranged from 11.03-12.03, 4.07-4.27, and 0.42-0.49, respectively. In terms of color properties both ultra-sonication and microwave processing showed the highest values of L (luminosity), a* (redness), and b* (yellow). The highest TPC was reported in ultra-sonication treatment 11.996±0.002 mg Gallic Acid Equivalents (GAE)/100 ml. The TAC varied from 0.179-0.235 mg Total Anthocyanin (TA)/100 ml, where ultra-sonication and mild pasteurization treatment yielded the highest and lowest contents, respectively.
Conclusion: Perfect phenolic content, antioxidant capacity, retention of anthocyanin content, and attractive color in pineapple juices when treated with non-thermal techniques.
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Elamir A, Shaker O, Kamal M, Khalefa A, Abdelwahed M, Abd El Reheem F, Ahmed T, Hassan E, Ayoub S. Expression profile of serum LncRNA THRIL and MiR-125b in inflammatory bowel disease. PLoS One 2022; 17:e0275267. [PMID: 36206229 PMCID: PMC9543963 DOI: 10.1371/journal.pone.0275267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 09/13/2022] [Indexed: 11/06/2022] Open
Abstract
Background Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the gastrointestinal tract. We aimed to investigate, for the first time, the expression profile of serum level of LncRNA THRIL and MiR-125b in IBD patients and their relations with patient’s clinical and biochemical investigations. Methods Our study included 210 subjects divided into 70 healthy subjects considered as control group (male and female), 70 patients with ulcerative colitis (UC), and 70 patients with Crohn’s disease (CD). Blood samples were obtained from all subjects. Expression of LncRNA THRIL and MiR-125b in serum was detected by Quantitative real time PCR (qRT-PCR). Results Our results showed a significant increase in the fold change of LncRNA THRIL in UC patients (Median = 11.11, IQR; 10.21–12.45, P<0.001) and CD patients (Median = 5.87, IQR; 4.57–7.88, P<0.001) compared to controls. Meanwhile there was a significant decrease in the fold change of MiR-125b in UC patients (Median = 0.36, IQR; 0.19–0.61, P<0.001) and CD patients (Median = 0.69, IQR; 0.3–0.83, P<0.001) compared to controls. Furthermore, there was a negative significant correlation between LncRNA THRIL and MiR-125b in UC patients (r = -0.28, P = 0.016) and in CD patients (r = -0.772, P<0.001). ROC curve analysis was done showing the diagnostic value of these markers as predictors in differentiating between cases of UC, CD, and control. Conclusion Serum LncRNA THRIL and MiR-125b could be used as potential biomarkers for diagnosis and prognosis of ulcerative colitis and Crohn’s disease.
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Affiliation(s)
- Azza Elamir
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Fayoum University, Fayoum, Egypt
| | - Olfat Shaker
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Marwa Kamal
- Department of Clinical Pharmacy, Faculty of Pharmacy, Fayoum University, Fayoum, Egypt
| | - Abeer Khalefa
- Department of Physiology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Mostafa Abdelwahed
- Department of Physiology, Faculty of Medicine, Fayoum University, Fayoum, Egypt
| | - Fadwa Abd El Reheem
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Fayoum University, Fayoum, Egypt
| | - Tarek Ahmed
- Department of Internal Medicine, Faculty of Medicine, Fayoum University, Fayoum, Egypt
| | - Essam Hassan
- Department of Tropical Medicine, Faculty of Medicine, Fayoum University, Fayoum, Egypt
| | - Shymaa Ayoub
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Fayoum University, Fayoum, Egypt
- * E-mail: ,
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Caniza MA, Homsi MR, Bate J, Adrizain R, Ahmed T, Alexander S, Bhattacharyya A, Copado‐Gutierrez JL, Gutierrez I, Lim YY, Morrissey L, Naidu G, Paintsil V, Radhakrishnan N, Mukkada S, Phillips R, Alexander KA, Pritchard‐Jones K. Answers to common questions about COVID-19 vaccines in children with cancer. Pediatr Blood Cancer 2022; 69:e29985. [PMID: 36114651 PMCID: PMC9538403 DOI: 10.1002/pbc.29985] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 08/14/2022] [Accepted: 08/15/2022] [Indexed: 01/08/2023]
Abstract
BACKGROUND The SARS-CoV-2 outbreak in 2020 evolved into a global pandemic, and COVID-19 vaccines became rapidly available, including for pediatric patients. However, questions emerged that challenged vaccine acceptance and use. We aimed to answer these questions and give recommendations applicable for use in pediatric patients with cancer by healthcare professionals and the public. METHODS A 12-member global COVID-19 Vaccine in Pediatric Oncology Working Group made up of physicians and nurses from all world regions met weekly from March to July 2021. We used a modified Delphi method to select the top questions. The Working Group, in four-member subgroups, answered assigned questions by providing brief recommendations, followed by a discussion of the rationale for each answer. All Working Group members voted on each recommendation using a scale of 1 to 10, 10 being complete agreement. A "pass" recommendation corresponded to an agreement ≥7.5. RESULTS We selected 15 questions from 173 suggested questions. Based on existing published information, we generated answers for each question as recommendations. The overall average agreement for the 24 recommendations was 9.5 (95% CI 9.4-9.6). CONCLUSION Top COVID-19 vaccine-related questions could be answered using available information. Reports on COVID-19 vaccination and related topics have been published at record speed, aided by available technology and the priority imposed by the pandemic; however, all efforts were made to incorporate emerging information throughout our project. Recommendations will be periodically updated on a dedicated website.
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Affiliation(s)
- Miguela A. Caniza
- Departments of Global Pediatric Medicine, St. Jude Children's Research HospitalMemphisTennesseeUSA,Departments of Infectious DiseasesSt. Jude Children's Research HospitalMemphisTennesseeUSA,Department of or PediatricsUniversity of Tennessee Health Science CenterMemphisTennesseeUSA
| | - Maysam R. Homsi
- Departments of Global Pediatric Medicine, St. Jude Children's Research HospitalMemphisTennesseeUSA
| | - Jessica Bate
- Department of Paediatric OncologySouthampton Children's HospitalSouthamptonUK
| | - Riyadi Adrizain
- Department of Child HealthFaculty of Medicine Universitas Padjadjaran Dr. Hasan Sadikin General HospitalBandungIndonesia
| | - Tarek Ahmed
- Department of Pediatric OncologyChildren's Cancer Hospital EgyptCairoEgypt
| | - Sarah Alexander
- Division of Haematology/Oncology, Hospital for Sick Children, Department of PediatricsUniversity of TorontoTorontoCanada
| | | | | | - Ivan Gutierrez
- Department of Pediatric Infectious DiseasesResearch Group Colsubsidio InvestigaClinical Infantil ColsubsidioBogotáColombia,Division of Pediatric Infectious DiseasesClinica Infantil Santa María del LagoBogotáColombia
| | - Yan Yin Lim
- Division of NursingKK Women's and Children's HospitalSingaporeSingapore
| | - Lisa Morrissey
- Department of NursingBoston Children's HospitalBostonMassachusettsUSA
| | - Gita Naidu
- Department of Pediatric OncologyChris Hani Baragwanath Academic HospitalUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Vivian Paintsil
- Department of Child HealthSchool of Medicine and DentistryKwame Nkrumah University of Science and TechnologyKumasiGhana
| | - Nita Radhakrishnan
- Department of Pediatric Hematology OncologyPost Graduate Institute of Child HealthNoidaIndia
| | - Sheena Mukkada
- Departments of Global Pediatric Medicine, St. Jude Children's Research HospitalMemphisTennesseeUSA,Departments of Infectious DiseasesSt. Jude Children's Research HospitalMemphisTennesseeUSA
| | - Robert Phillips
- Regional Department of Hematology and OncologyLeeds Children's HospitalLeedsUK,Centre for Reviews and DisseminationUniversity of YorkYorkUK
| | - Kenneth A. Alexander
- Department of PediatricsDivision of Infectious DiseasesNemours Children's Hospital‐FloridaOrlandoFloridaUSA
| | - Kathy Pritchard‐Jones
- Developmental Biology and Cancer Research and Teaching DepartmentUCL Great Ormond Street Institute of Child HealthLondonUK
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Ria FR, Khan KN, Nahar S, Ahmed T. Prosthetic Aortic Valve Thrombosis: Surgery or Thrombolysis. Mymensingh Med J 2022; 31:882-886. [PMID: 35780379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Mechanical prosthetic valve thrombosis is a serious complication which necessitates immediate intervention. The presenting signs and symptoms of this illness are somewhat variable, but physical examination and trans-esophageal-echocardiography enable rapid diagnosis. Valve replacement or thrombolysis in the correct hospital setting must be performed to avoid life-threatening complication without delay. But it is not proven entirely which therapy is superior. For any given patient, the risks of thrombolytic therapy, including bleeding, systemic embolism and failure to restore valvular function, must be weighed against the risks of surgical intervention. In spite of aggressive therapy, morbidity and mortality from prosthetic valve thrombosis and its treatment are not less indeed. This report describes the case of a woman with aortic prosthetic valves who presents with heart failure and evidence of severe prosthetic aortic valve dysfunction after a period of suboptimal anticoagulation.
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Affiliation(s)
- F R Ria
- Dr Fahria Rubyat Ria, Senior House Officer, Cardiology Department, United Hospital Limited, Dhaka, Bangladesh; E-mail: fahria
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Mohammed F, Baydaa Abed Hussein A, Ahmed T. Evaluation of Methylation Panel in the Promoter Region of p16INK4a , RASSF1A, and MGMT as a Biomarker in Sputum for Lung Cancer. Arch Razi Inst 2022; 77:1075-1081. [PMID: 36618318 PMCID: PMC9759213 DOI: 10.22092/ari.2022.357985.2131] [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] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/21/2022] [Indexed: 01/10/2023]
Abstract
Lung cancer is the most common cause of cancer death in the world. Effective early detection and appropriate medications can help treat this deadly cancer. Therefore, early detection of lung cancer is of utmost importance, especially in screening high-risk populations (such as smokers) with an urgent need to identify new biomarkers. The present study aimed to demonstrate the potential of using the panel of DNA methylation as a biomarker for the early diagnosis of lung cancer from sputum samples. The methylated promoter of p16INK4a , RASSF1A, and MGMT genes was estimated by the methylation-specific polymerase chain reaction in a sample of 84 lung cancer patients (65 smokers and 19 non-smokers). Based on the results, p16INK4a promoter methylation was significantly associated with smoking habit and lung cancer progression in terms of histological grading and patient staging. The sensitivity and specificity of the p16INK4a gene as a biomarker for lung cancer were 71% and 90%, respectively. The methylated promoter of RASSF1A was less sensitive (48%) as a biomarker for lung cancer with 83%. The results demonstrated a strong association between promoter methylation of RASSF1A and late stages of lung cancer (P=0.0007). The sensitivity of the MGMT gene as a biomarker for lung cancer was 61% with high specificity (92%), compared to other candidate genes in this study. The epigenetic alteration in the promoter region of p16INK4a , RASSF1A, and MGMT genes is highly associated with cancer cell development. It is suggested that the use of these candidate biomarkers can be used as an adjunct to computed tomography screening to diagnose patients at high risk for lung cancer after validation.
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Affiliation(s)
- F Mohammed
- AL-Manara College for Medical Sciences, Department of Pharmacy, Maysan, Iraq
| | - A Baydaa Abed Hussein
- Department of Sciences, College of Basic Education, University of Misan, Maysan, Iraq
| | - T Ahmed
- AL-Manara College for Medical Sciences, Department of Pharmacy, Maysan, Iraq
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Tekkis NP, Rafi D, Brown S, Courtney A, Kawka M, Howell AM, McLean K, Gardiner M, Mavroveli S, Hutchinson P, Tekkis P, Wilkinson P, Sam AH, Savva N, Kontovounisios C, Tekkis N, Rafi D, Brown S, Courtney A, Kawka M, Howell A, McLean K, Gardiner M, Mavroveli S, Hutchinson P, Tekkis P, Wilkinson P, Sam AH, Savva N, Kontovounisios C, Tekkis N, Rafi D, Brown S, Courtney A, Kawka M, Howell A, McLean K, Gardiner M, Mavroveli S, Hutchinson P, Tekkis P, Wilkinson P, Sam AH, Savva N, Kontovounisios C, Tekkis N, Brown S, Kawka M, Mclean K, Savva N, Wilkinson P, Sam AH, Singal A, Chia C, Chia W, Ganesananthan S, Ooi SZY, Pengelly S, Wellington J, Mak S, Subbiah Ponniah H, Heyes A, Aberman I, Ahmed T, Al-Shamaa S, Appleton L, Arshad A, Awan H, Baig Q, Benedict K, Berkes S, Citeroni NL, Damani A, de Sancha A, Fisayo T, Gupta S, Haq M, Heer B, Jones A, Khan H, Kim H, Meiyalagan N, Miller G, Minta N, Mirza L, Mohamed F, Ramjan F, Read P, Soni L, Tailor V, Tas RN, Vorona M, Walker M, Winkler T, Bardon A, Acquaah J, Ball T, Bani W, Elmasry A, Hussein F, Kolluri M, Lusta H, Newman J, Nott M, Perwaiz MI, Rayner R, Shah A, Shaw I, Yu K, Cairns M, Clough R, Gaier S, Hirani D, Jeyapalan T, Li Y, Patel CR, Shabir H, Wang YA, Weatherhead A, Dhiran A, Renney O, Wells P, Ferguson S, Joyce A, Mergo A, Adebayo O, Ahmad J, Akande O, Ang G, Aniereobi E, Awasthi S, Banjoko A, Bates J, Chibada C, Clarke N, Craner I, Desai DD, Dixon K, Duffaydar HI, Kuti M, Mughal AZ, Nair D, Pham MC, Preest GG, Reid R, Sachdeva GS, Selvaratnam K, Sheikh J, Soran V, Stoney N, Wheatle M, Howarth K, Knapp-Wilson A, Lee KS, Mampitiya N, Masson C, McAlinden JJ, McGowan N, Parmar SC, Robinson B, Wahid S, Willis L, Risquet R, Adebayo A, Dhingra L, Kathiravelupillai S, Narayanan R, Soni J, Ghafourian P, Hounat A, Lennon KA, Abdi Mohamud M, Chou W, Chong L, Graham CJ, Piya S, Riad AM, Vennard S, Wang J, Kawar L, Maseland C, Myatt R, Tengku Saifudin TNS, Yong SQ, Douglas F, Ogbechie C, Sharma K, Zafar L, Bajomo MO, Byrne MHV, Obi C, Oluyomi DI, Patsalides MA, Rajananthanan A, Richardson G, Clarke A, Roxas A, Adeboye W, Argus L, McSweeney J, Rahman-Chowdhury M, Hettiarachchi DS, Masood MT, Antypas A, Thomas M, de Andres Crespo M, Zimmerman M, Dhillon A, Abraha S, Burton O, Jalal AHB, Bailey B, Casey A, Kathiravelupillai A, Missir E, Boult H, Campen D, Collins JM, Dulai S, Elhassan M, Foster Z, Horton E, Jones E, Mahapatra S, Nancarrow T, Nyamapfene T, Rimmer A, Robberstad M, Robson-Brown S, Saeed A, Sarwar Y, Taylor C, Vetere G, Whelan MK, Williams J, Zahid D, Chand C, Matthews M. The impact of the COVID-19 pandemic on UK medical education. A nationwide student survey. Med Teach 2022; 44:574-575. [PMID: 34428109 DOI: 10.1080/0142159x.2021.1962835] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
| | - Damir Rafi
- School of Medicine, Imperial College London, London, UK
| | - Sam Brown
- Leicester Medical School, University of Leicester, Leicester, UK
| | - Alona Courtney
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Michal Kawka
- School of Medicine, Imperial College London, London, UK
| | - Ann-Marie Howell
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Kenneth McLean
- Division of Clinical and Surgical Sciences, University of Edinburgh, Edinburgh, UK
| | - Matthew Gardiner
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | | | - Peter Hutchinson
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Paris Tekkis
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Paul Wilkinson
- School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Amir H Sam
- School of Medicine, Imperial College London, London, UK
| | - Nicos Savva
- Division of Management Science and Operations, London Business School, London, UK
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - J Acquaah
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - T Ball
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - W Bani
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - A Elmasry
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - F Hussein
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - M Kolluri
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - H Lusta
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - J Newman
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - M Nott
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - M I Perwaiz
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - R Rayner
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - A Shah
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - I Shaw
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - K Yu
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | | | | | - S Gaier
- Queen Mary University of London
| | | | | | - Y Li
- Queen Mary University of London
| | | | | | | | | | - A Dhiran
- St George's Hospital Medical School
| | - O Renney
- St George's Hospital Medical School
| | - P Wells
- St George's Hospital Medical School
| | | | - A Joyce
- The Queen's University of Belfast
| | | | | | - J Ahmad
- The University of Birmingham
| | | | - G Ang
- The University of Birmingham
| | | | | | | | - J Bates
- The University of Birmingham
| | | | | | | | | | - K Dixon
- The University of Birmingham
| | | | - M Kuti
- The University of Birmingham
| | | | - D Nair
- The University of Birmingham
| | | | | | - R Reid
- The University of Birmingham
| | | | | | | | - V Soran
- The University of Birmingham
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - J Soni
- The University of Cambridge
| | | | | | | | | | - W Chou
- The University of East Anglia
| | | | | | - S Piya
- The University of Edinburgh
| | | | | | - J Wang
- The University of Edinburgh
| | | | | | | | | | | | | | | | | | | | | | | | - C Obi
- The University of Leicester
| | | | | | | | | | | | | | | | - L Argus
- The University of Manchester
| | | | | | | | | | | | | | | | | | | | | | | | | | - B Bailey
- University of Brighton and Sussex
| | - A Casey
- University of Brighton and Sussex
| | | | - E Missir
- University of Brighton and Sussex
| | - H Boult
- University of Exeter Medical School
| | - D Campen
- University of Exeter Medical School
| | | | - S Dulai
- University of Exeter Medical School
| | | | - Z Foster
- University of Exeter Medical School
| | - E Horton
- University of Exeter Medical School
| | - E Jones
- University of Exeter Medical School
| | | | | | | | - A Rimmer
- University of Exeter Medical School
| | | | | | - A Saeed
- University of Exeter Medical School
| | - Y Sarwar
- University of Exeter Medical School
| | - C Taylor
- University of Exeter Medical School
| | - G Vetere
- University of Exeter Medical School
| | | | | | - D Zahid
- University of Exeter Medical School
| | - C Chand
- University of Hull and the University of York
| | - M Matthews
- University of Hull and the University of York
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Sultana M, Das SC, Dey B, Salam A, Afrin A, Ahmed T. Effect of Hydroponic Wheat Sprout on the Growth Performance, Carcass Characteristics, and Lipid Profiles of Broilers. Braz J Poult Sci 2022. [DOI: 10.1590/1806-9061-2021-1583] [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] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- M Sultana
- Patuakhali Science and Technology University, Bangladesh
| | - SC Das
- Bangladesh Agricultural University, Bangladesh
| | - B Dey
- Bangladesh Agricultural University, Bangladesh
| | - A Salam
- Bangladesh Agricultural University, Bangladesh
| | - A Afrin
- Bangladesh Agricultural University, Bangladesh
| | - T Ahmed
- Bangladesh Agricultural University, Bangladesh
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11
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Labuhn M, LaBore K, Ahmed T, Ahmed R. Trends and instigators among young adolescent suicide in the United States. Public Health 2021; 199:51-56. [PMID: 34547557 PMCID: PMC8763572 DOI: 10.1016/j.puhe.2021.08.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 05/24/2021] [Accepted: 08/05/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The present investigation examined the role of factors involved in suicide ideation and suicide attempt using a nationally representative sample of US high school students. METHODS Data were collected from students in Grades 9-12 as part of the Youth Behavioral Survey (n = 11,328). Logistic regression models were used to examine factors associated with suicide ideation and suicide attempt. Variables included demographic characteristics (grade, sex, and race), psychosocial factors (physical fighting, sexual violence, sports participation, bullying, and electronic bullying), and substance use (cigarette usage, marijuana usage, and alcohol usage). RESULTS The factor most associated with suicide ideation was bullying (either electronic or physical), whereas the factor most associated with suicide attempt was sexual violence followed closely by physical bullying. CONCLUSIONS The multitude of instigators and commonality among gender, ethnicity, and socio-economic status give an indication of how to prevent suicide and who to target information regarding the hazards of suicide.
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Affiliation(s)
- M Labuhn
- University of North Dakota, Grand Forks, ND, USA
| | - K LaBore
- Doctor of Psychology Program in Counseling Psychology, School of Health and Human Services, Saint Mary's University of Minnesota, Minneapolis, MN, USA
| | - T Ahmed
- Department of Community Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - R Ahmed
- Department of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL, USA.
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12
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Pires da Silva I, Zakria D, Ahmed T, Trojaniello C, Dimitriou F, Allayous C, Gerard C, Zimmer L, Lo S, Michielin O, Lebbe C, Mangana J, Ascierto P, Johnson D, Carlino M, Menzies A, Long G. 1042P Anti-PD1 (PD1) monotherapy or in combination with ipilimumab (IPI) after BRAF/MEK inhibitors (BRAF/MEKi) in BRAF mutant metastatic melanoma (MM) patients (pts). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1427] [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] Open
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13
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Bhave P, Ahmed T, Shoushtari A, Zaremba A, Versluis J, Mangana J, Weichenthal M, Si L, Lesimple T, Robert C, Trojaniello C, Wicky A, Heywood R, Tran L, Batty K, Stansfeld A, Lebbe C, Schwarze J, Mooradian M, Carlino M. 1047P Efficacy of checkpoint inhibitors (CPIs) in acral melanoma (AM). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1432] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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14
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Gide T, Silva I, Quek C, Ferguson P, Batten M, Shang P, Ahmed T, Menzies A, Carlino M, Saw R, Thompson J, Wilmott J, Scolyer R, Long G. Analysis of clinical and molecular profiles of patients with innate resistance to ANTI-PD-1 +/- ANTI-CTLA-4 immunotherapy in metastatic melanoma. Pathology 2021. [DOI: 10.1016/j.pathol.2021.05.087] [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: 11/30/2022]
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15
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El Sharouni MA, Ahmed T, Witkamp AJ, Sigurdsson V, van Gils CH, Nieweg OE, Scolyer RA, Thompson JF, van Diest PJ, Lo SN. Predicting recurrence in patients with sentinel node-negative melanoma: validation of the EORTC nomogram using population-based data. Br J Surg 2021; 108:550-553. [PMID: 34043770 DOI: 10.1002/bjs.11946] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/08/2020] [Accepted: 06/30/2020] [Indexed: 11/06/2022]
Abstract
BACKGROUND Identifying patients with sentinel node (SN)-negative melanoma who are at greatest risk of recurrence is important. The European Organization for Research and Treatment of Cancer (EORTC) Melanoma Group proposed a prognostic model that has not been validated in population-based data. The EORTC nomogram includes Breslow thickness, ulceration status and anatomical location as parameters. The aim of this study was to validate the EORTC model externally using a large national data set. METHODS Adults with histologically proven, invasive cutaneous melanoma with a negative SN biopsy in the Netherlands between 2000 and 2014 were identified from the Dutch Pathology Registry, and relevant data were extracted. The EORTC nomogram was used to predict recurrence-free survival. The predictive performance of the nomogram was assessed by discrimination (C-statistic) and calibration. RESULTS A total of 8795 patients met the eligibility criteria, of whom 14·7 per cent subsequently developed metastatic disease. Of these recurrences, 20·9 per cent occurred after the first 5 years of follow-up. Validation of the EORTC nomogram showed a C-statistic of 0·70 (95 per cent c.i. 0·68 to 0·71) for recurrence-free survival, with excellent calibration (R2 = 0·99; P = 0·999, Hosmer-Lemeshow test). CONCLUSION This population-based validation confirmed the value of the EORTC nomogram in predicting recurrence-free survival in patients with SN-negative melanoma. The EORTC nomogram could be used in clinical practice for personalizing follow-up and selecting high-risk patients for trials of adjuvant systemic therapy.
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Affiliation(s)
- M A El Sharouni
- Melanoma Institute, The University of Sydney, Sydney, NSW, Australia.,Department of Dermatology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - T Ahmed
- Melanoma Institute, The University of Sydney, Sydney, NSW, Australia
| | - A J Witkamp
- Department of Surgery, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - V Sigurdsson
- Department of Dermatology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - C H van Gils
- Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, Utrecht University, Utrecht, the Netherlands
| | - O E Nieweg
- Melanoma Institute, The University of Sydney, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.,Melanoma and Surgical Oncology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - R A Scolyer
- Melanoma Institute, The University of Sydney, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.,Departments of Tissue Oncology and Diagnostic Pathology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.,New South Wales Health Pathology, Sydney, New South Wales, Australia
| | - J F Thompson
- Melanoma Institute, The University of Sydney, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.,Melanoma and Surgical Oncology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - P J van Diest
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - S N Lo
- Melanoma Institute, The University of Sydney, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
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16
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El Sharouni MA, Varey AHR, Witkamp AJ, Ahmed T, Sigurdsson V, van Diest PJ, Scolyer RA, Thompson JF, Lo SN, van Gils CH. Predicting sentinel node positivity in patients with melanoma: external validation of a risk-prediction calculator (the Melanoma Institute Australia nomogram) using a large European population-based patient cohort. Br J Dermatol 2021; 185:412-418. [PMID: 33657653 DOI: 10.1111/bjd.19895] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/25/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND A nomogram to predict sentinel node (SN) positivity [the Melanoma Institute Australia (MIA) nomogram] was recently developed and externally validated using two large single-institution databases. However, there remains a need to further validate the nomogram's performance using population-based data. OBJECTIVES To perform further validation of the nomogram using a European national patient cohort. METHODS Patients with cutaneous melanoma who underwent SN biopsy in the Netherlands between 2000 and 2014 were included. Their data were obtained from the Dutch Pathology Registry. The predictive performance of the nomogram was assessed by discrimination (C-statistic) and calibration. Negative predictive values (NPVs) were calculated at various predicted probability cutoffs. RESULTS Of the 3049 patients who met the eligibility criteria, 23% (691) were SN positive. Validation of the MIA nomogram (including the parameters Breslow thickness, ulceration, age, melanoma subtype and lymphovascular invasion) showed a good C-statistic of 0·69 (95% confidence interval 0·66-0·71) with excellent calibration (R2 = 0·985, P = 0·40). The NPV of 90·1%, found at a 10% predicted probability cutoff for having a positive SN biopsy, implied that by using the nomogram, a 16·3% reduction in the rate of performing an SN biopsy could be achieved with an error rate of 1·6%. Validation of the MIA nomogram considering mitotic rate as present or absent showed a C-statistic of 0·70 (95% confidence interval 0·68-0·74). CONCLUSIONS This population-based validation study in European patients with melanoma confirmed the value of the MIA nomogram in predicting SN positivity. Its use will spare low-risk patients the inconvenience, cost and potential risks of SN biopsy while ensuring that high-risk patients are still identified.
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Affiliation(s)
- M A El Sharouni
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia.,Department of Dermatology, University Medical Centre Utrecht, Utrecht University, Utrecht, the Netherlands
| | - A H R Varey
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.,Department Plastic & Reconstructive Surgery, Westmead Hospital, Sydney, NSW, Australia
| | - A J Witkamp
- Department of Surgery, University Medical Centre Utrecht, Utrecht University, Utrecht, the Netherlands
| | - T Ahmed
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia
| | - V Sigurdsson
- Department of Dermatology, University Medical Centre Utrecht, Utrecht University, Utrecht, the Netherlands
| | - P J van Diest
- Department of Pathology, University Medical Centre Utrecht, Utrecht University, Utrecht, the Netherlands
| | - R A Scolyer
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.,Department of Tissue Oncology and Diagnostic Pathology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia.,NSW Health Pathology, Sydney, NSW, Australia
| | - J F Thompson
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.,Department of Melanoma and Surgical Oncology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - S N Lo
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - C H van Gils
- Julius Center for Health Sciences and Primary Care, University Medical Centre Utrecht, Utrecht University, Utrecht, the Netherlands
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Abstract
More than 420,000 tonnes of plastic waste is produced every year in New York City (NYC). This plastic represents 15% of municipal solid waste in NYC and is in line with New York State and United States averages. This material is managed by NYC's dual-stream recycling system and industry-leading material recovery facilities. However, not all plastic collected for recycling (diverted) is ultimately sold to be remanufactured into new products (recovered). This study utilizes publicly available data to quantify and compare the diversion and recovery rates of residential plastics in NYC to provide quantitative context of such a process in a large metropolitan area. In 2018, 35.2% of plastics suitable for recycling were diverted, indicating a potential to improve collection. Of these, only 53.4% of plastics diverted for recycling were ultimately recovered through sale into the markets. This is aligned with the theoretical maximum recycling potential described in other scholarly work. The 53.4% recovery rate of diverted plastics indicates that an increase in diversion would not yield an equivalent increase in recovery. Additionally, barriers to the recovery of plastic waste impact the actual recycling rate. The literature and this study recognize that contamination, technology limitations, and the availability of markets all influence the sorting and selling of plastics. Furthermore, plastic recycling has recently received significant attention due to the implementation of China's National Sword policy. This study demonstrates that from 2017 to 2018, while the sales of plastics #3-7 decreased, the overall recovery rate of plastics in NYC was not impacted by China's National Sword policy.
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Affiliation(s)
- Vanessa Ventola
- Sustainability in the Urban Environment Program, The City College of New York, New York, NY, USA
| | - Eliza Brenman
- Sustainability in the Urban Environment Program, The City College of New York, New York, NY, USA
| | - Grace Chan
- Sustainability in the Urban Environment Program, The City College of New York, New York, NY, USA
| | - Tarek Ahmed
- Sustainability in the Urban Environment Program, The City College of New York, New York, NY, USA
| | - Marco J Castaldi
- Department of Chemical Engineering, The City College of New York, New York, NY, USA
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Sarkar A, Rahman S, Roy M, Alam M, Hossain M, Ahmed T. Impact of blanching pretreatment on physicochemical properties, and drying characteristics of cabbage (Brassica oleracea). Food Res 2021. [DOI: 10.26656/fr.2017.5(2).556] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Cabbage (Brassica oleracea) is popular winter vegetables cultivated all over Bangladesh
and contains essential nutrients. This study aimed to evaluate the efficacy of pre-blanching
on the preservation of cabbage by drying. In this research work, cabbage was blanched at
80°C, 90°C, and 100°C temperature for 12, 8, and 2 mins, respectively. Then the samples
were dried at 60°C maintaining 60% relative humidity. The moisture and ash content of
untreated and treated dried samples was in the range of 16.07±0.04 to 10.80±0.01% and
5.71±0.06 to 3.81±0.02%, respectively. The total phenolic content in cabbage was
74.47±0.63 mg GAE/100g at 100°C blanching temperature for a short time of 2 mins,
which was higher compared to 61.91±0.48 mg GAE/100g at 80°C for 12 mins. It was
observed that the antioxidant activity and two water-soluble vitamins-ascorbic acid and
beta carotene decreased in pre-blanched dried samples in contrast with fresh ones.
Blanching at higher water temperature and a short period was found useful for the
retention of total phenolic content and greenness of cabbage. Blanching pre-treatments
were also found to have better color retention capacity than untreated dried cabbage. A
proper combination of drying time and temperature, along with the incorporation of
blanching pretreatment, might be useful to preserve cabbage for a long time.
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Ahmed T, Salem E. Enhancing a nutrition and self-management: An intervention program via teletherapy for teenager with ADHD. A pilot case study. Eur Psychiatry 2021. [PMCID: PMC9480114 DOI: 10.1192/j.eurpsy.2021.2089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Introduction Several ADHD teenagers had difficult behavioral problems during countries closing down due to Covid-19 pandemic. One of these negative outcomes that parents cannot control children’s behavior toward desired unhealthy food and the impulsive consequences. It was a great opportunity to convention a teletherapy program as a tool of intervention seeking for help to reduce uncontrolled self- management and nutrition, which may affect all sorts of childhood growth, development, health and behavior. Furthermore, it can affects daily life and academic success. Objectives We tried through our study to enhance the teletherapy as a therapeutic tool, during the first and second phase of Covid-19 pandemic, trying to help parents and patient to overcome the impulsive behavior by using a specific therapy technique based on nutrition and behavioral therapy Methods Our case study is a young girl aged 12:4 Yrs. In middle bilingual Arabic/ American School. The therapeutic program designed via teletherapy program using multi-media and thru multi phases sessions, to increase focus attention, emotional control and reduce impulsivity. Results The outcomes of the enhancing nutrition and behavior teletherapy program, showed significant improvement for the specific goal. Sensible change in the girl’s impulsive behavior, more focusing, emotional control and more accepting about health nutrition habits. Conclusions The important finding that intensive, focused nutation and self-management techniques provided via teletherapy as solitary program brought benefits to individual’s, family and reduced impulsivity outcomes. In addition, family education to become an expert at learning simple techniques in daily life can brining a sense of pleasure for long life wellbeing. Disclosure No significant relationships.
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Sumit AF, Sharmin T, Ahmed T. Evaluation of the in vitro Antimicrobial Activity As well As Preservative Capacity of Several Popular Cosmetic Products Available in the Neighbouring Shops in Bangladesh. Mymensingh Med J 2021; 30:478-484. [PMID: 33830132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Cosmetic products are often inadequately preserved that provide favourable environment for microbial growth. These emphasize the need for regular investigation of cosmetics in terms of microbial quality and preservative capacity. This study aimed to evaluate the microbial quality, in vitro antibacterial activity and preservative capacity of several popular cosmetics collected from the neighbouring health-care stationary shops in Dhaka city from October 2019 to December 2019. Here, a total of five categories of seven different cosmetic products were subjected to evaluate microbial load, in vitro antibacterial activity and preservative capacity. Among the seven cosmetic products, the viable bacterial count in two cosmetics (All Clear and Sunsilk Shampoo) were found within the acceptable range that was <10³ CFU/ml. None of the cosmetics were found contaminated with fungus and pathogenic organisms. Conversely, three (one Mouthwash and two shampoo) products showed in vitro antibacterial activity against E. coli, S. aureus, Pseudomonas spp., Salmonella spp., Shigella spp. Only single cosmetic product (Cute coconut oil) did not meet the criteria of preservative capacity, while rest six products fulfil the requirements. Thus, our findings revealed a huge load of microorganisms in spite of having adequate preservative capacity in most of the tested products.
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Affiliation(s)
- A F Sumit
- Ahmed Faisal Sumit, Assistant Professor, Department of Genetic Engineering and Biotechnology, University of Dhaka, Bangladesh; E-mail:
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El Sharouni MA, Stodell MD, Ahmed T, Suijkerbuijk KPM, Cust AE, Witkamp AJ, Sigurdsson V, van Diest PJ, Scolyer RA, Thompson JF, van Gils CH, Lo SN. Sentinel node biopsy in patients with melanoma improves the accuracy of staging when added to clinicopathological features of the primary tumor. Ann Oncol 2020; 32:375-383. [PMID: 33253862 DOI: 10.1016/j.annonc.2020.11.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [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: 09/15/2020] [Revised: 11/15/2020] [Accepted: 11/16/2020] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND It has been claimed, without supporting evidence, that knowledge of sentinel node (SN) status does not provide more accurate prognostic information than basic clinicopathological features of a primary cutaneous melanoma. We sought to investigate this claim and to quantify any additional value of SN status in predicting survival outcome. PATIENTS AND METHODS Data for a Dutch population-based cohort of melanoma patients (n = 9272) and for a validation cohort from a large Australian melanoma treatment center (n = 5644) were analyzed. Patients were adults diagnosed between 2004 and 2014 with histologically-proven, primary invasive cutaneous melanoma who underwent SN biopsy. Multivariable Cox proportional hazards analyses were carried out in the Dutch cohort to assess recurrence-free survival (RFS), melanoma-specific survival (MSS) and overall survival (OS). The findings were validated using the Australian cohort. Discrimination (Harrell's C-statistic), net benefit using decision curve analysis and net reclassification index (NRI) were calculated. RESULTS The Dutch cohort showed an improved C-statistic from 0.74 to 0.78 for OS and from 0.74 to 0.76 for RFS when SN status was included in the model with Breslow thickness, sex, age, site, mitoses, ulceration, regression and melanoma subtype. In the Australian cohort, the C-statistic increased from 0.70 to 0.73 for OS, 0.70 to 0.74 for RFS and 0.72 to 0.76 for MSS. Decision curve analyses showed that the 3-year and 5-year risk of death or recurrence were more accurately classified with a model that included SN status. At 3 years, sensitivity increased by 12% for both OS and RFS in the development cohort, and by 10% and 6% for OS and RFS, respectively, in the validation cohort. CONCLUSIONS Knowledge of SN status significantly improved the predictive accuracy for RFS, MSS and OS when added to a comprehensive suite of established clinicopathological prognostic factors. However, clinicians and patients must consider the magnitude of the improvement when weighing up the advantages and disadvantages of SN biopsy for melanoma.
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Affiliation(s)
- M-A El Sharouni
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia; Department of Dermatology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - M D Stodell
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia; Department of Plastic Surgery, Royal London Hospital, Barts Health NHS Trust, London, UK
| | - T Ahmed
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia
| | - K P M Suijkerbuijk
- Department of Medical Oncology, University Medical Centre Cancer Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - A E Cust
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia; Sydney School of Public Health, The University of Sydney, Sydney, NSW, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - A J Witkamp
- Department of Surgery, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - V Sigurdsson
- Department of Dermatology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - P J van Diest
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - R A Scolyer
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia; Department of Tissue Oncology and Diagnostic Pathology, Royal Prince Alfred Hospital and NSW Health Pathology, Sydney, NSW, Australia
| | - J F Thompson
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia; Department of Melanoma and Surgical Oncology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia.
| | - C H van Gils
- Julius Centre for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - S N Lo
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
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Poulikakos P, Wu X, Yang X, Xiong Y, Ito T, Ahmed T, Karoulia Z, Adamopoulos C, Li R, Wang H, Wang L, Xie L, Liu J, Ueberheide B, Aaronson S, Chen X, Buchanan S, Sellers W, Jin J. Distinct CDK6 complexes determine tumor cell response to CDK4/6 inhibitors and degraders. Eur J Cancer 2020. [DOI: 10.1016/s0959-8049(20)31082-0] [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]
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Ahmed T. Evaluation of Treatment of Coccydynia using Local Injection of Betamethasone-17α,21-dipropionate and 21-Disodium Phosphate versus Oral NSAIDs and Physiotherapy. Egyptian Spine Journal 2020. [DOI: 10.21608/esj.2021.57160.1169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Abstract
Introduction Proximal femoral nail (PFN) is a commonly used implant for intertrochanteric fractures which is designed according to western femoral measurements. However, anthropometry of proximal femur in Indian and in general, Asian, are smaller. So a modified short PFN with smaller dimensions was developed. This study analyses the radiological and functional outcome of treatment of intertrochanteric fractures with modified short PFN. Materials and Methods A retrospective study analysed 120 adult patients operated between 2014-2017 using modified short PFN for intertrochanteric fractures, having a minimum follow-up of 12 months. Clinical and radiological parameters including tip-apex distance (TAD), position of tip of lag screw in femoral head, lateral slide of lag screw as well as length of anti-rotation screw were measured. Final functional outcome was assessed using Barthel's index and Kyle's criteria. Results Good reduction was achieved in 90.83% cases and 79.16% had ideal placement of lag screw in femoral head. Intra-operative difficulties were encountered in 13.33% (n=16). Mean TAD AP (anteroposterior) was 11.8mm, TAD LAT (lateral) was 11.0mm and mean TAD TOT was 22.8mm. Overall mean lateral slide was 3.20mm and it was more in unstable fracture. We had five mechanical failures, one patient with screw breakage without loss of reduction and two peri-implant fractures after union. 81.66% returned to pre-injury levels of activity with 88.33% good to excellent outcome as per Kyle's criteria. Conclusion Although, not devoid of complications, modified short PFN results in good functional recovery of patients with intertrochanteric fractures of femur.
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Affiliation(s)
- V Jha
- Department of Orthopaedics, Maharishi Markandeshwar Medical College and Hospital, Solan, India
| | - T Ahmed
- Department of Orthopaedics, Apollo Gleneagles Hospital, Kolkata, India
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Hoque A, Alam S, Bari M, Matin M, Bhowmick R, Chowdhury A, Rahim I, Thakur A, Ahmed T. 1451P Comparative response evaluation of cisplatin-capecitabine with cisplatin-5-fluorouracil in advanced gastric carcinoma: A quasi-experimental study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1957] [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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Abbas Y, Abdelkader M, Adams M, Addison A, Advani R, Ahmed T, Alexander V, Alexander V, Alli B, Alvi S, Amiraraghi N, Ashman A, Balakumar R, Bewick J, Bhasker D, Bola S, Bowles P, Campbell N, Can Guru Naidu N, Caton N, Chapman J, Chawdhary G, Cherko M, Coates M, Conroy K, Coyle P, Cozar O, Cresswell M, Dalton L, Danino J, Daultrey C, Davies K, Carrie S, Dick D, Dimitriadis PA, Doddi N, Dowling M, Easto R, Edmiston R, Ellul D, Erskine S, Evans A, Farboud A, Forde C, Fussey J, Gaunt A, Gilchrist J, Gohil R, Gosnell E, Grech Marguerat D, Green R, Grounds R, Hall A, Hardman J, Harris A, Harrison L, Hone R, Hoskison E, Howard J, Ioannidis D, Iqbal I, Janjua N, Jolly K, Kamal S, Kanzara T, Keates N, Kelly A, Khan H, Korampalli T, Kuet M, Kul‐loo P, Lakhani R, Lambert A, Lancer H, Leonard C, Lloyd G, Lowe E, Mair J, Maughan E, Gao C, Mayberry T, McCadden L, McClenaghan F, McKenzie G, Mcleod R, Meghji S, Mian M, Millington A, Mirza O, Mistry S, Molena E, Morris J, Myuran T, Navaratnam A, Noon E, Okonkwo O, Oremule B, Pabla L, Papesch E, Puranik V, Roplekar R, Ross E, Rudd J, Schechter E, Senior A, Sethi N, Sharma S, Sharma R, Shelton F, Sherazi Z, Tahir A, Tikka T, Tkachuk Hlinicanova O, To K, Tse A, Toll E, Ubayasiri K, Unadkat S, Upile N, Vijendren A, Walijee H, Wilkie M, Williams R, Williams M, Wilson G, Wong W, Wong G, Xie C, Yao A, Zhang H, Ellis M, Mehta N, Milinis K, Tikka T, Slovick A, Swords C, Hutson K, Smith ME, Hopkins C, Ng Kee Kwong F. Nasal Packs for Epistaxis: Predictors of Success. Clin Otolaryngol 2020; 45:659-666. [DOI: 10.1111/coa.13555] [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] [Received: 08/09/2019] [Revised: 03/08/2020] [Accepted: 04/13/2020] [Indexed: 11/30/2022]
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Ahmed T, Sharmin A, Dipu M, Islam T. Microbiological quality analysis of different types of popular dried food items. Food Res 2020. [DOI: 10.26656/fr.2017.4(4).080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The study was carried out to investigate the microbiological quality of dried foods which
are very popular among kids. Moreover, people from all age groups like it, although adults
do not take it on a regular basis, the total consumed amount among the adults are not
negligible. Chips, biscuits, muesli, salted peanuts all are dried foods, and all of these can
undergo microbial contamination due to the remaining water activity, environmental
condition, production processing faults, humidity, temperature etc. In the current study,
twenty-four samples were analyzed for microbial quality analysis. Six samples from each
category of dried food were subjected to study for the presence of mesophilic organisms,
coliforms, molds and other specific food pathogens. Of the samples studied, almost all
were found to be contaminated with the mesophilic bacteria (104
-107CFU/g) and fungus
(105
-107CFU/g). Survival of Vibrio spp. was absent and Salmonella spp. was found in
only one sample. Escherichia coli, Pseudomonas spp., Staphylococcus spp. and Shigella
spp. were found in many of the samples indicating the poor quality of the dried food items.
Overall, the present study revealed that potato chips were highly contaminated by bacteria
and fungi. Consuming such contaminated chips may cause foodborne illness that is a great
threat to our health.
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Giallourou N, Fardus-Reid F, Panic G, Veselkov K, McCormick BJJ, Olortegui MP, Ahmed T, Mduma E, Yori PP, Mahfuz M, Svensen E, Ahmed MMM, Colston JM, Kosek MN, Swann JR. Metabolic maturation in the first 2 years of life in resource-constrained settings and its association with postnatal growths. Sci Adv 2020; 6:eaay5969. [PMID: 32284996 PMCID: PMC7141821 DOI: 10.1126/sciadv.aay5969] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 01/14/2020] [Indexed: 05/10/2023]
Abstract
Malnutrition continues to affect the growth and development of millions of children worldwide, and chronic undernutrition has proven to be largely refractory to interventions. Improved understanding of metabolic development in infancy and how it differs in growth-constrained children may provide insights to inform more timely, targeted, and effective interventions. Here, the metabolome of healthy infants was compared to that of growth-constrained infants from three continents over the first 2 years of life to identify metabolic signatures of aging. Predictive models demonstrated that growth-constrained children lag in their metabolic maturity relative to their healthier peers and that metabolic maturity can predict growth 6 months into the future. Our results provide a metabolic framework from which future nutritional programs may be more precisely constructed and evaluated.
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Affiliation(s)
- N. Giallourou
- Division of Integrative Systems Medicine and Digestive Diseases, Imperial College London, London, UK
| | - F. Fardus-Reid
- Division of Integrative Systems Medicine and Digestive Diseases, Imperial College London, London, UK
| | - G. Panic
- Division of Integrative Systems Medicine and Digestive Diseases, Imperial College London, London, UK
| | - K. Veselkov
- Division of Integrative Systems Medicine and Digestive Diseases, Imperial College London, London, UK
| | | | - M. P. Olortegui
- Asociación Benéfica PRISMA, Unidad de Investigación Biomedica, Iquitos, Peru
| | - T. Ahmed
- International Center for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - E. Mduma
- Haydom Global Health Institute, Haydom, Tanzania
| | - P. P. Yori
- Asociación Benéfica PRISMA, Unidad de Investigación Biomedica, Iquitos, Peru
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, USA
| | - M. Mahfuz
- International Center for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - E. Svensen
- Haydom Global Health Institute, Haydom, Tanzania
- Haukeland University Hospital, Bergen, Norway
| | - M. M. M. Ahmed
- International Center for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - J. M. Colston
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, USA
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - M. N. Kosek
- Asociación Benéfica PRISMA, Unidad de Investigación Biomedica, Iquitos, Peru
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, USA
- Corresponding author.
| | - J. R. Swann
- Division of Integrative Systems Medicine and Digestive Diseases, Imperial College London, London, UK
- School of Human Development and Health, Faculty of Medicine, University of Southampton, UK
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Roberts N, Dothard A, Ahmed T, Petty W, Ruiz J, Lycan T. OA01.04 Safety and Efficacy of Flu Vaccination After Treatment with Immune Checkpoint Inhibitors: a Retrospective Review. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.09.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sheikh S, Qayyum F, Ahmad A, Ahmed T, Amjad M. Anti VGKC complex antibody associated disorders: A retrospective audit. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Ahmed T, Ruiz J, Lycan T, Addo S, Gandhi P, Miller J, Levine B, Triozzi P, Bonomi M, Petty W. P1.01-76 Randomized Phase II Study of Immunotherapy With or Without Low Dose Chemotherapy for Patients with Performance Status of 2. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.791] [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: 10/25/2022]
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Shaheen SM, Wafa A, Mokarab M, Zareef B, Bendary A, Ahmed T, Rashwan A, Selim M, Elmasry M, Abelhady Y, Abdelrazik G, Ibrahim A, Gharib M, Aly K, Wadie M. P4627Presentation, management, and outcomes of STEMI in Egypt: results from the European Society of Cardiology registry on ST elevation myocardial infarction. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.1009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Apart from few small single-center studies there are limited data about STEMI patients in Egypt.
Patients and methods
The European Society of Cardiology (ESC) Registry on ST Elevation Myocardial Infarction is a prospective, multicenter and observational registry. Nineteen Egyptian centers (with and without PCI facilities) participated in this registry with 1356 patients who were compared to 7420 patients from other ESC countries. Patient recruitment started from March 2016 to February 2018.
Aims of the study
The aims of this study was to describe the characteristics of patients with STEMI, to assess STEMI management patterns, to evaluate in-hospital patient outcome and to compare Egyptian patients with other ESC countries.
Results
Compared to other ESC countries, Egyptian patients were younger (mean age 55.4±11.3 vs. 62.9±12.4; P<0.001 and 4.3% vs. 19.4%% were ≥75 years old; P<0.001) with fewer females (18.4% vs. 25.6%; P<0.001). Fewer Egyptian patients had history of myocardial infarction (7.9% vs. 12.6%; P<0.001), chronic heart failure (2.0% vs. 11.5%; P<0.001), but Egyptians had higher prevalence of current smoking (59.0% vs. 42.8% p<0.001), Diabetes mellitus (40.7% vs. 21.9%, p<0.001). Egypt had longer median time between symptoms onset and first medical contact: 120.0 (60.0; 240.0) vs. 100.0 (50.0; 240.0) p<0.001. Self-presentation rather than EMS presentation was the mode of admission in 86.0% in Egypt vs. 25.8% in EU countries (p<0.001). On qualifying ECG, anterior STEMI was in 57.0% in Egypt vs. 45.9% in other countries (p<0.001). Initial reperfusion therapy was 49.1%, 43.0% and 7.2% for Primary PCI, thrombolytic therapy and no reperfusion in Egypt vs. 85.4%, 7.2% and 7.8% for EU countries, respectively. Thrombolysis when given was in the CCU/ICU rather than EMS or ER in 97.2% in Egypt vs. 43.7% in other countries. Compared to thrombolytic therapy, patients who were treated with primary PCI had less Cerebrovascular accident (0.75% vs. 1.3%; P<0.001), killip Class IV (3.0% vs. 5.9%; P<0.001) or AF (2.5% vs. 3.6%; P 0.008). In hospital mortality was 4.6% in Egypt vs. 3.5% in other countries P 0.040 and was 18.7% in No reperfusion vs. 2.1% in Primary PCI vs. 4.9% in Thrombolysis (P<0.001) among Egyptians. Patients were discharged on Aspirin in 98.6%, Clopidogrel in 91.0%, Ticagrelor in 7.1%, DAPT in 97.6%, Beta Blockers in 82.8%, ACE inhibitors in 84.7%, MRAs in 10.0%, and Statins in 99.7%.
Conclusion
Egyptian STEMI patients were younger, more frequently obese, smokers and diabetics had significantly longer delay between symptoms onset and first medical contact with more self-presentation rather than the recommended EMS presentation. Primary PCI was offered to only half of the patients. In hospital mortality was significantly higher and was highest among non-reperfused patients. National plans for primary and secondary prevention are urgently needed in Egypt.
Acknowledgement/Funding
This registry was funded by the ESC. The Egyptian Society of Cardiology was given a grant of €12000 to help with the implementation of this national E
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Affiliation(s)
- S M Shaheen
- Ain Shams University Hospital, Department of Cardiology, Cairo, Egypt
| | - A Wafa
- Mansoura University, Cardiology, Mansoura, Egypt
| | - M Mokarab
- Al-Azhar University, Cardiology, Cairo, Egypt
| | - B Zareef
- Enaya hospital, Cardiology, Cairo, Egypt
| | - A Bendary
- Benha Faculty of Medicine, Benha, Egypt
| | - T Ahmed
- Assiut University, Assiut, Egypt
| | - A Rashwan
- Fayoum General Hospital, Cardiology, fayoum, Egypt
| | - M Selim
- National Heart Institute, Cairo, Egypt
| | | | | | | | - A Ibrahim
- Helwan University, Cardiology, Badr, Egypt
| | - M Gharib
- Nasr City Insurance Hospital, Cardiology, Cairo, Egypt
| | - K Aly
- Ain Shams University Hospital, Department of Cardiology, Cairo, Egypt
| | - M Wadie
- Mansoura University, Cardiology, Mansoura, Egypt
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Abstract
Reconstruction of a tendon rupture is surgically challenging as each end of the tendon retracts, leaving a substantial gap and direct repair is often not feasible. A tendon graft is required to bridge this defect and restore function. Presently, these gaps are filled with auto-, allo-, or synthetic grafts, but they all have clinical limitations. To address this issue, we developed tissue-engineered grafts by a rapid process using compressed type I collagen, which is the most dominant protein in the tendon. However, biomechanical properties were found to be unsuitable to withstand complete load-bearing in vivo. Hence, a modified suture technique was previously developed to reduce the load on the engineered collagen graft to aid integration in vivo. Using this technique, we tested engineered collagen grafts in vivo on a lapine model in three groups up to 12 weeks without immobilization. Gross observation at 3 and 12 weeks showed the bridge integrated without adhesions with a significant increase in the mechanical, structural and histological properties as compared to 1 week. Insertion of a tissue-engineered collagen graft using a novel load-bearing suture technique which partially loads in vivo showed integration, greater mechanical strength and no adhesion formation in the time period tested. This collagen graft has inherent advantages as compared to the present-day tendon grafts.
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Affiliation(s)
- Prasad Sawadkar
- Division of Surgery and interventional Science, University College London Stanmore Campus, London HA7 4LP, United Kingdom
| | - Paul Sibbons
- Department of Surgical Research, Northwick Park Institute of Medical Research, London HA1 3UJ, United Kingdom
| | - Tarek Ahmed
- Division of Biomaterials and Tissue Engineering, University College London Eastman Dental Institute, London WC1X 8LD, United Kingdom
| | - Laurent Bozec
- Division of Biomaterials and Tissue Engineering, University College London Eastman Dental Institute, London WC1X 8LD, United Kingdom
| | - Vivek Mudera
- Division of Surgery and interventional Science, University College London Stanmore Campus, London HA7 4LP, United Kingdom
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Wheless W, Hughes R, Soike M, Farris M, Masters A, Helis C, Cramer C, Ruiz J, Lycan T, Petty W, Ahmed T, Chan M, Blackstock A. Limited-Stage Small Cell Lung Cancer: Is Prophylactic Cranial Irradiation Necessary? Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1282] [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: 10/26/2022]
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Ipenburg NA, Nieweg OE, Ahmed T, van Doorn R, Scolyer RA, Long GV, Thompson JF, Lo S. External validation of a prognostic model to predict survival of patients with sentinel node-negative melanoma. Br J Surg 2019; 106:1319-1326. [PMID: 31310333 PMCID: PMC6790583 DOI: 10.1002/bjs.11262] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 05/13/2019] [Indexed: 12/23/2022]
Abstract
Background Identifying patients with sentinel node‐negative melanoma at high risk of recurrence or death is important. The European Organisation for Research and Treatment of Cancer (EORTC) recently developed a prognostic model including Breslow thickness, ulceration and site of the primary tumour. The aims of the present study were to validate this prognostic model externally and to assess whether it could be improved by adding other prognostic factors. Methods Patients with sentinel node‐negative cutaneous melanoma were included in this retrospective single‐institution study. The β values of the EORTC prognostic model were used to predict recurrence‐free survival and melanoma‐specific survival. The predictive performance was assessed by discrimination (c‐index) and calibration. Seeking to improve the performance of the model, additional variables were added to a Cox proportional hazards model. Results Some 4235 patients with sentinel node‐negative cutaneous melanoma were included. The median follow‐up time was 50 (i.q.r. 18·5–81·5) months. Recurrences and deaths from melanoma numbered 793 (18·7 per cent) and 456 (10·8 per cent) respectively. Validation of the EORTC model showed good calibration for both outcomes, and a c‐index of 0·69. The c‐index was only marginally improved to 0·71 when other significant prognostic factors (sex, age, tumour type, mitotic rate) were added. Conclusion This study validated the EORTC prognostic model for recurrence‐free and melanoma‐specific survival of patients with negative sentinel nodes. The addition of other prognostic factors only improved the model marginally. The validated EORTC model could be used for personalizing follow‐up and selecting high‐risk patients for trials of adjuvant systemic therapy.
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Affiliation(s)
- N A Ipenburg
- Melanoma Institute Australia, University of Sydney, Sydney, New South Wales, Australia.,Department of Dermatology, Leiden University Medical Centre, Leiden, the Netherlands
| | - O E Nieweg
- Melanoma Institute Australia, University of Sydney, Sydney, New South Wales, Australia.,Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.,Department of Melanoma and Surgical Oncology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - T Ahmed
- Melanoma Institute Australia, University of Sydney, Sydney, New South Wales, Australia
| | - R van Doorn
- Department of Dermatology, Leiden University Medical Centre, Leiden, the Netherlands
| | - R A Scolyer
- Melanoma Institute Australia, University of Sydney, Sydney, New South Wales, Australia.,Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.,Department of Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - G V Long
- Melanoma Institute Australia, University of Sydney, Sydney, New South Wales, Australia.,Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.,Department of Medical Oncology, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - J F Thompson
- Melanoma Institute Australia, University of Sydney, Sydney, New South Wales, Australia.,Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.,Department of Melanoma and Surgical Oncology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - S Lo
- Melanoma Institute Australia, University of Sydney, Sydney, New South Wales, Australia
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36
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Motalab M, Paul R, Saha S, Mojumder S, Ahmed T, Suhling JC. Atomistic analysis of the thermomechanical properties of Sn-Ag-Cu solder materials at the nanoscale with the MEAM potential. J Mol Model 2019; 25:59. [PMID: 30741336 DOI: 10.1007/s00894-019-3939-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 07/25/2018] [Accepted: 01/24/2019] [Indexed: 10/27/2022]
Abstract
Sn-Ag-Cu, commonly known as SAC, is considered to be among the most promising of all lead-free solder alloys. Research aimed at making electronic components smaller has pointed to the possible use of nanosized solder joints in the future. In this study, for the first time, molecular dynamics simulations were used to analyze the thermomechanical properties of SAC solder materials at the nanoscale. The modified embedded-atom method (MEAM) potential was utilized in the simulations of the SAC solder materials. The dimensions of the structures considered were 55 × 55 × 59 Å. Four different SAC solders were studied, with Ag percentages ranging from 1% to 4% (SAC105, SAC205, SAC305, and SAC405). Thus, the effects of the Ag percentage on the thermomechanical properties of the solder at the nanoscale were identified. The impacts of the temperature on the uniaxial tensile properties and coefficient of thermal expansion (CTE) values of the SAC solder materials were investigated by performing simulations of the materials at different temperatures. Results suggest that as the Ag percentage increases, the uniaxial tensile strength and CTE of the solder increase whereas the failure strain and thermal conductivity decrease. The results presented should prove useful in the electronic packaging industry.
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Affiliation(s)
- M Motalab
- Department of Mechanical Engineering, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh
| | - R Paul
- Department of Mechanical Engineering, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh
| | - S Saha
- Department of Mechanical Engineering, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh.
| | - S Mojumder
- Department of Mechanical Engineering, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh
| | - T Ahmed
- Department of Mechanical Engineering, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh
| | - J C Suhling
- Department of Mechanical Engineering, Auburn University, Auburn, AL, 36849, USA
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37
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Shoukry H, Taher M, Enany A, Ahmed T, Hassan I. Combination of Caffeine and Liver Albumin Plus Protects against Smoking-Induced Liver Injury in Rats. Dubai Med J 2019. [DOI: 10.1159/000497078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
<b><i>Background:</i></b> A number of studies have revealed the hepatoprotective effect of coffee and tea. However, the role of caffeine on smoking-induced liver injury is not well elucidated. Liver Albumin Plus (LAP) is a liver supplement given in different liver diseases; to our knowledge, its role in smoking-induced liver injury is not clear. <b><i>Objectives:</i></b> This study aimed to find out the protective effect of caffeine and LAP alone and in combination in attenuation of smoking-induced liver injury. <b><i>Methods:</i></b> Thirty male albino rats were divided into a control group and a smoking group; the smoking group was then subdivided into a smoking group, a smoking + caffeine group, a smoking + LAP group, and a smoking + caffeine + LAP group. At the end of the experimental study, blood samples were collected for assessment of liver enzymes, alpha-fetoprotein (AFP), and interleukin 6, and livers were excised. Biochemical analysis of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), superoxide dismutase (SOD), and hypoxia-inducible factor (HIF) as well as histological examination were done. <b><i>Results:</i></b> The results showed that smoking elevated liver enzymes, AFP, H<sub>2</sub>O<sub>2</sub>, and HIF and decreased SOD; histologically, deterioration of the liver was observed. On administration of caffeine, significant (<i>p</i> < 0.05) improvement in all measured parameters and preserved liver histological structure were observed, while intake of LAP alone showed some improvement. In combination, all liver parameters were improved and histological structure was preserved in contrast to each drug alone. <b><i>Conclusion:</i></b> It is better to give a combination of caffeine and LAP with cigarettes smoking to attenuate smoking-induced liver injury.
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Ferreira SA, Motwani MS, Faull PA, Seymour AJ, Yu TTL, Enayati M, Taheem DK, Salzlechner C, Haghighi T, Kania EM, Oommen OP, Ahmed T, Loaiza S, Parzych K, Dazzi F, Varghese OP, Festy F, Grigoriadis AE, Auner HW, Snijders AP, Bozec L, Gentleman E. Author Correction: Bi-directional cell-pericellular matrix interactions direct stem cell fate. Nat Commun 2018; 9:5419. [PMID: 30560926 PMCID: PMC6299074 DOI: 10.1038/s41467-018-07843-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
- Silvia A Ferreira
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Meghna S Motwani
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Peter A Faull
- Protein Analysis and Proteomics Platform, The Francis Crick Institute, London, NW1 1AT, UK
| | - Alexis J Seymour
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Tracy T L Yu
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Marjan Enayati
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK.,Ludwig Boltzmann Cluster for Cardiovascular Research at the Center for Biomedical Research, Medical University of Vienna, Vienna, Austria
| | - Dheraj K Taheem
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Christoph Salzlechner
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Tabasom Haghighi
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Ewa M Kania
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Oommenp P Oommen
- Bioengineering and Nanomedicine Lab, Faculty of Biomedical Sciences and Engineering, Tampere University of Technology and BioMediTech Institute, 33720, Tampere, Finland
| | - Tarek Ahmed
- Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, WC1X 8LD, UK
| | - Sandra Loaiza
- Cancer Cell Protein Metabolism Group, Department of Medicine, Imperial College London, London, W12 0NN, UK
| | - Katarzyna Parzych
- Cancer Cell Protein Metabolism Group, Department of Medicine, Imperial College London, London, W12 0NN, UK
| | - Francesco Dazzi
- Department of Haemato-Oncology, Rayne Institute, King's College London, London, SE5 9NU, UK
| | - Oommen P Varghese
- Department of Chemistry, Ångström Laboratory, Science for Life Laboratory, Uppsala University, SE-75121, Uppsala, Sweden
| | - Frederic Festy
- Tissue Engineering and Biophotonics, King's College London, London, SE1 9RT, UK
| | - Agamemnon E Grigoriadis
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Holger W Auner
- Cancer Cell Protein Metabolism Group, Department of Medicine, Imperial College London, London, W12 0NN, UK
| | - Ambrosius P Snijders
- Protein Analysis and Proteomics Platform, The Francis Crick Institute, London, NW1 1AT, UK
| | - Laurent Bozec
- Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, WC1X 8LD, UK.,Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, Toronto ON, M5G 1G6, Canada
| | - Eileen Gentleman
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK.
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39
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Affiliation(s)
| | - Tarek Ahmed
- Bangladesh Medical College and Hospital, Dhaka, Bangladesh
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40
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Ferreira SA, Motwani MS, Faull PA, Seymour AJ, Yu TTL, Enayati M, Taheem DK, Salzlechner C, Haghighi T, Kania EM, Oommen OP, Ahmed T, Loaiza S, Parzych K, Dazzi F, Varghese OP, Festy F, Grigoriadis AE, Auner HW, Snijders AP, Bozec L, Gentleman E. Author Correction: Bi-directional cell-pericellular matrix interactions direct stem cell fate. Nat Commun 2018; 9:4851. [PMID: 30429483 PMCID: PMC6235857 DOI: 10.1038/s41467-018-07398-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Silvia A Ferreira
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK
| | - Meghna S Motwani
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK
| | - Peter A Faull
- Protein Analysis and Proteomics Platform, The Francis Crick Institute, London NW1 1AT, UK
| | - Alexis J Seymour
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK
| | - Tracy T L Yu
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK
| | - Marjan Enayati
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK
| | - Dheraj K Taheem
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK
| | - Christoph Salzlechner
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK
| | - Tabasom Haghighi
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK
| | - Ewa M Kania
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK
| | - Oommen P Oommen
- Bioengineering and Nanomedicine Lab, Faculty of Biomedical Sciences and Engineering, Tampere University of Technology and BioMediTech Institute, 33720, Tampere, Finland
| | - Tarek Ahmed
- Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London WC1X 8LD, UK
| | - Sandra Loaiza
- Cancer Cell Protein Metabolism Group, Department of Medicine, Imperial College London, London W12 0NN, UK
| | - Katarzyna Parzych
- Cancer Cell Protein Metabolism Group, Department of Medicine, Imperial College London, London W12 0NN, UK
| | - Francesco Dazzi
- Department of Haemato-Oncology, Rayne Institute, King's College London, London SE5 9NU, UK
| | - Oommen P Varghese
- Department of Chemistry, Ångström Laboratory, Science for Life Laboratory, Uppsala University, SE-75121, Uppsala, Sweden
| | - Frederic Festy
- Tissue Engineering and Biophotonics, King's College London, London SE1 9RT, UK
| | | | - Holger W Auner
- Cancer Cell Protein Metabolism Group, Department of Medicine, Imperial College London, London W12 0NN, UK
| | - Ambrosius P Snijders
- Protein Analysis and Proteomics Platform, The Francis Crick Institute, London NW1 1AT, UK
| | - Laurent Bozec
- Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London WC1X 8LD, UK.,Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, Toronto ON M5G 1G6, Canada
| | - Eileen Gentleman
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK.
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41
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Ferreira SA, Motwani MS, Faull PA, Seymour AJ, Yu TTL, Enayati M, Taheem DK, Salzlechner C, Haghighi T, Kania EM, Oommen OP, Ahmed T, Loaiza S, Parzych K, Dazzi F, Varghese OP, Festy F, Grigoriadis AE, Auner HW, Snijders AP, Bozec L, Gentleman E. Bi-directional cell-pericellular matrix interactions direct stem cell fate. Nat Commun 2018; 9:4049. [PMID: 30282987 PMCID: PMC6170409 DOI: 10.1038/s41467-018-06183-4] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 08/10/2018] [Indexed: 11/29/2022] Open
Abstract
Modifiable hydrogels have revealed tremendous insight into how physical characteristics of cells' 3D environment drive stem cell lineage specification. However, in native tissues, cells do not passively receive signals from their niche. Instead they actively probe and modify their pericellular space to suit their needs, yet the dynamics of cells' reciprocal interactions with their pericellular environment when encapsulated within hydrogels remains relatively unexplored. Here, we show that human bone marrow stromal cells (hMSC) encapsulated within hyaluronic acid-based hydrogels modify their surroundings by synthesizing, secreting and arranging proteins pericellularly or by degrading the hydrogel. hMSC's interactions with this local environment have a role in regulating hMSC fate, with a secreted proteinaceous pericellular matrix associated with adipogenesis, and degradation with osteogenesis. Our observations suggest that hMSC participate in a bi-directional interplay between the properties of their 3D milieu and their own secreted pericellular matrix, and that this combination of interactions drives fate.
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Affiliation(s)
- Silvia A Ferreira
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Meghna S Motwani
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Peter A Faull
- Protein Analysis and Proteomics Platform, The Francis Crick Institute, London, NW1 1AT, UK
| | - Alexis J Seymour
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Tracy T L Yu
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Marjan Enayati
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
- Ludwig Boltzmann Cluster for Cardiovascular Research at the Center for Biomedical Research, Medical University of Vienna, Vienna, Austria
| | - Dheraj K Taheem
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Christoph Salzlechner
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Tabasom Haghighi
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Ewa M Kania
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Oommen P Oommen
- Bioengineering and Nanomedicine Lab, Faculty of Biomedical Sciences and Engineering, Tampere University of Technology and BioMediTech Institute, 33720, Tampere, Finland
| | - Tarek Ahmed
- Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, WC1X 8LD, UK
| | - Sandra Loaiza
- Cancer Cell Protein Metabolism Group, Department of Medicine, Imperial College London, London, W12 0NN, UK
| | - Katarzyna Parzych
- Cancer Cell Protein Metabolism Group, Department of Medicine, Imperial College London, London, W12 0NN, UK
| | - Francesco Dazzi
- Department of Haemato-Oncology, Rayne Institute, King's College London, London, SE5 9NU, UK
| | - Oommen P Varghese
- Department of Chemistry, Ångström Laboratory, Science for Life Laboratory, Uppsala University, SE-75121, Uppsala, Sweden
| | - Frederic Festy
- Tissue Engineering and Biophotonics, King's College London, London, SE1 9RT, UK
| | - Agamemnon E Grigoriadis
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Holger W Auner
- Cancer Cell Protein Metabolism Group, Department of Medicine, Imperial College London, London, W12 0NN, UK
| | - Ambrosius P Snijders
- Protein Analysis and Proteomics Platform, The Francis Crick Institute, London, NW1 1AT, UK
| | - Laurent Bozec
- Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, WC1X 8LD, UK
- Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, Toronto, ON M5G 1G6, Canada
| | - Eileen Gentleman
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK.
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42
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Kushnir M, Winter H, Murias C, Bains P, Abbosh C, Papadatos-Pastos D, Newsome-Davis T, Ahmed T, Swanton C, Forster M, Moore D, Bennett P, Faull I, Lanman R, Arkenau HT. Cell-free circulating tumour DNA (ctDNA) in the management of patients with non-biopsiable advanced non-small cell lung cancer (NSCLC). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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43
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Ahmed T, Abdel-Nazeer A, Hasan H, Youssef A. TCT-378 Angiographic, Echocardiographic and Clinical outcomes among STEMI patients with pre-infarction angina undergoing primary percutaneous coronary intervention. J Am Coll Cardiol 2018. [DOI: 10.1016/j.jacc.2018.08.1533] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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44
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Dar MH, Zaidi NW, Waza SA, Verulkar SB, Ahmed T, Singh PK, Roy SKB, Chaudhary B, Yadav R, Islam MM, Iftekharuddaula KM, Roy JK, Kathiresan RM, Singh BN, Singh US, Ismail AM. No yield penalty under favorable conditions paving the way for successful adoption of flood tolerant rice. Sci Rep 2018; 8:9245. [PMID: 29915310 PMCID: PMC6006260 DOI: 10.1038/s41598-018-27648-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 05/30/2018] [Indexed: 01/25/2023] Open
Abstract
Flooding is one of the major constraints for rice production in rainfed lowlands, especially in years and areas of high rainfall. Incorporating the Sub1 (Submergence1) gene into high yielding popular varieties has proven to be the most feasible approach to sustain rice production in submergence-prone areas. Introgression of this QTL into popular varieties has resulted in considerable improvement in yield after flooding. However, its impact under non-flooded conditions or years have not been thoroughly evaluated which is important for the farmers to accept and adopt any new version of their popular varieties. The present study was carried out to evaluate the effect of Sub1 on grain yield of rice in different genetic backgrounds, under non-submergence conditions, over years and locations. The study was carried out using head to head trials in farmer’s fields, which enable the farmers to more accurately compare the performance of Sub1 varieties with their recurrent parents under own management. The data generated from different head to head trials revealed that the grain yield of Sub1 varieties was either statistically similar or higher than their non-Sub1 counterparts under non-submergence conditions. Thus, Sub1 rice varieties show no instance of yield penalty of the introgressed gene.
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Affiliation(s)
- Manzoor H Dar
- International Rice Research Institute (IRRI-India), NASC Complex, New Delhi, India.
| | - Najam W Zaidi
- International Rice Research Institute (IRRI-India), NASC Complex, New Delhi, India
| | - Showkat A Waza
- Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir (J&K), Kashmir, India
| | | | - T Ahmed
- Assam Agricultural University, Jorhat, Assam, India
| | - P K Singh
- Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | | | | | - Rambaran Yadav
- Regional Agriculture Research Station, NARC, Bara, Nepal
| | | | | | - J K Roy
- Association for Integrated Development (AID), Bhubaneswar, Odisha, India
| | | | - B N Singh
- Centre for Research and Development (CRD), Gorakhpur, UP, India
| | - Uma S Singh
- International Rice Research Institute (IRRI-India), NASC Complex, New Delhi, India
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45
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Bhowmik B, Afsana F, Ahmed T, Siddiquee T, Ahmed T, Pathan F, Mahtab H, Khan AKA. Evaluation of knowledge regarding gestational diabetes mellitus: a Bangladeshi study. Public Health 2018; 161:67-74. [PMID: 29913317 DOI: 10.1016/j.puhe.2018.04.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 12/29/2017] [Revised: 04/28/2018] [Accepted: 04/30/2018] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the level of knowledge about gestational diabetes mellitus (GDM) in Bangladeshi people. STUDY DESIGN Cross-sectional study. METHODS This study involving 1374 participants was conducted in 15 outpatient clinics of Diabetic Association of Bangladesh and its affiliated associations, Bangabandhu Sheikh Mujib Medical University and four medical college hospitals in Bangladesh from August 2015 to December 2015. A pretested interviewer-administered questionnaire was used to obtain information related to sociodemographic status, level of education, types of profession, and medical history. The questionnaire included eight questions on GDM. Level of knowledge (mean ± 1 standard deviation [SD]) was categorized as poor, average, and good. Descriptive, Chi-squared, and regression analysis were performed to express the results. RESULTS Of total knowledge score of 8, participants' mean knowledge score (±SD) was 2.7 ± 1.5. The levels of good, average, and poor knowledge were 26.3%, 63.1%, and 10.6%, respectively. In multivariate analysis, participants aged below 30 years (P < 0.001), male gender (P < 0.001), high-income group (P < 0.001), having university education (P < 0.001), health professionals (P < 0.001), capital Dhaka city residents (P < 0.001), those with family history of diabetes (P = 0.007), and participants with diabetes (P = 0.007) were found to be significantly associated with the good knowledge score. CONCLUSIONS Participants in this study had average knowledge about GDM. New innovative strategies should be developed to improve the knowledge of GDM among health professionals and general population.
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Affiliation(s)
- B Bhowmik
- Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo 0318, Norway; Centre for Global Health Research, Diabetic Association of Bangladesh, Dhaka 1000, Bangladesh.
| | - F Afsana
- Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine and Metabolic Disorders, Dhaka 1000, Bangladesh
| | - T Ahmed
- Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine and Metabolic Disorders, Dhaka 1000, Bangladesh
| | - T Siddiquee
- Centre for Global Health Research, Diabetic Association of Bangladesh, Dhaka 1000, Bangladesh
| | - T Ahmed
- Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine and Metabolic Disorders, Dhaka 1000, Bangladesh
| | - F Pathan
- Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine and Metabolic Disorders, Dhaka 1000, Bangladesh
| | - H Mahtab
- Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine and Metabolic Disorders, Dhaka 1000, Bangladesh
| | - A K A Khan
- Centre for Global Health Research, Diabetic Association of Bangladesh, Dhaka 1000, Bangladesh
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46
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Elfeky H, Mohammed R, Ahmed T, Ibrahim A, Abo el Makarem I. SP206PREGNANCY RELATED ACUTE KIDNEY INJURY. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.sp206] [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: 11/13/2022] Open
Affiliation(s)
- Hanaa Elfeky
- Internal Medicine .Nehrology, Al Zahraa University Hospital, Cairo, Egypt
| | - Ragaa Mohammed
- Internal Medicine and Nephrology, Al Zahraa University Hospital, Cairo, Egypt
| | - Tarek Ahmed
- Nephrology, National Institue of Urology and Nephrology, Cairo, Egypt
| | - Amal Ibrahim
- Internal Medicine and Nephrology, Al Zahraa University Hospital, Cairo, Egypt
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47
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Banu S, Rahman MT, Ahmed S, Khatun R, Ferdous SS, Hosen B, Rahman MM, Ahmed T, Cavanaugh JS, Heffelfinger JD. Multidrug-resistant tuberculosis in Bangladesh: results from a sentinel surveillance system. Int J Tuberc Lung Dis 2018; 21:12-17. [PMID: 28157459 DOI: 10.5588/ijtld.16.0384] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Multidrug-resistant tuberculosis (MDR-TB) is a serious obstacle to successful TB control. The 2010-2011 Bangladesh Drug Resistance Survey (DRS) showed MDR-TB prevalence to be 7% overall, 1.4% in new and 28.5% in previously treated patients. We aimed to determine the rate of MDR-TB in selected sentinel sites in Bangladesh. METHODS Fourteen hospitals from the seven divisions in Bangladesh were selected as sentinel surveillance sites. Newly registered TB patients were systematically enrolled from August 2011 to December 2014. Sputum specimens were processed for culture and drug susceptibility testing by the proportion method using Löwenstein-Jensen medium. RESULTS Specimens from 1906 (84%) of 2270 enrolled patients were analysed. Isolates from 61 (3.2%) were identified as having MDR-TB. The proportion of MDR-TB was 2.3% among new and 13.8% among previously treated TB patients (P < 0.001). The overall proportion of MDR-TB was 3.2%:3.5% in males and 2.3% in females; by age, the MDR-TB rate was highest (5.2%) in those aged 65 years. CONCLUSIONS The high proportion of MDR-TB among new patients found in this sentinel surveillance significantly differs from that reported in the DRS. While the sentinel surveillance sites were not designed to be nationally representative, it is worrying to observe a higher number of MDR-TB cases among new patients.
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Affiliation(s)
- S Banu
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - M T Rahman
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - S Ahmed
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - R Khatun
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - S S Ferdous
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - B Hosen
- International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka
| | - M M Rahman
- National TB Control Programme, Directorate General of Health Services, Mohakhali, Dhaka, Bangladesh
| | - T Ahmed
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - J S Cavanaugh
- Center for Global Health, US Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - J D Heffelfinger
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh; Center for Global Health, US Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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Sinharay R, Mithra S, Patel P, Ah-Moye A, Morrow S, Khiroya R, Falzon M, Borg E, Ahmed T, Forster M, Navani N. EGFR mutation specific immunohistochemistry revolutionises time to treatment with tyrosine kinase inhibitors (TKIs). Lung Cancer 2018. [DOI: 10.1016/s0169-5002(18)30085-0] [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: 11/17/2022]
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Fernandes de Souza Barbosa J, Dos Santos Gomes C, Vilton Costa J, Ahmed T, Zunzunegui MV, Curcio CL, Gomez F, Oliveira Guerra R. Abdominal Obesity and Mobility Disability in Older Adults: A 4-Year Follow-Up the International Mobility in Aging Study. J Nutr Health Aging 2018; 22:1228-1237. [PMID: 30498831 DOI: 10.1007/s12603-018-1100-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND Abdominal obesity is related to the disability process in older adults, however, little is known about this relationship when adjusted for important confounders such as depression and physical performance measures in a diverse international aged population. OBJECTIVES To explore the longitudinal relationship between abdominal obesity and mobility disability controlling for physical performance and depression. DESIGN AND SETTING Longitudinal observational study using data from the International Mobility in Aging Study (IMIAS) Study. PARTICIPANTS 1104 out of 2002 older adults aged 64-74 years old free of mobility disability at baseline (2012) and then reassessed in 2016. MEASUREMENTS Mobility disability was defined as reporting difficulty in walking 400 m or climbing stairs. Activities of daily living (ADL) disability was based on any self-reported difficulty in five mobility-related ADLs. Abdominal obesity was defined as waist circumference ≥ 88cm for women or ≥ 102 cm for men. Four meters gait speed, handgrip strength and depressive symptoms (CES-D) were assessed. Generalized Estimating Equations (GEE) and multinomial regressions were used to estimate associations between disability and abdominal obesity. RESULTS 1104 free of disability participants were followed over 4 years, the mean age was 68.9 (±2.9) years among men and 68.7 (±2.6) years among women. Prevalence and incidence rates of mobility disability varied widely across research site and sex. The longitudinal associations between mobility disability and abdominal obesity remained significant even when adjusted by depressive symptoms, handgrip strength, gait speed, age, sex, education and research site. Participants with abdominal obesity had higher mobility disability (OR=1.68, 95% CI 1.23-1.76, p-value=0.01) and also increased risk for ADL disability (OR: 1.47, 95% CI 1.23-1.76, p-value=0.01). Abdominal obesity in baseline was also predictor of mobility disability in 2016 (OR: 1.93, 95% CI 1.17-3.17, p-value <0.01) but not for ADL disability (OR: 1.59, 95% CI 0.93-2.71, p-value =0.09) with accounting mortality. CONCLUSION Abdominal obesity is associated longitudinally and predicts mobility disability, even over a short period (4 years) in community-dwelling older adults from different epidemiological contexts.
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Affiliation(s)
- J Fernandes de Souza Barbosa
- Juliana Fernandes de Souza Barbosa, Department of Physiotherapy, Federal University of Rio Grande do Norte, Senador Salgado Filho Avenue, n 3000, Campus Universitário, Zip Code: 59078-970, Natal/RN - Brazil, Phone Number.: 55-84-8832-9740, E-mail:
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Qureshi AA, Manzoor S, Younis H, Shah KH, Ahmed T. ASSESSMENT OF RADIATION DOSE AND EXCESSIVE LIFE-TIME CANCER RISK FROM THE BUNAIR GRANITE, NORTHERN PAKISTAN. Radiat Prot Dosimetry 2018; 178:143-151. [PMID: 28985383 DOI: 10.1093/rpd/ncx095] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 07/03/2017] [Indexed: 06/07/2023]
Abstract
Natural radioactivity was measured in Bunair Granite using high purity germanium gamma-ray spectrometer and compared to world's granites and building materials to access its suitability for the construction purpose. Average gamma-activities of 226Ra, 232Th and 40K were found to be 52.41, 58.41 and 1130.12 Bq kg-1, respectively. The Indoor and outdoor radiation indices including excessive life-time cancer risk (ELCR) were calculated. The average indoor ELCR was estimated as 3.49 × 10-3. The average outdoor ELCR was assessed as 0.46 × 10-3. As a basic building material Bunair Granite should be on low propriety. For flooring, facing the buildings and as Table tops, in kitchens and other utilities it is safe.
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Affiliation(s)
- A A Qureshi
- Radiation Physics Laboratory, Department of Physics, COMSATS Institute of Information Technology, Park Road, Islamabad, Pakistan
| | - S Manzoor
- Radiation Physics Laboratory, Department of Physics, COMSATS Institute of Information Technology, Park Road, Islamabad, Pakistan
| | - H Younis
- Radiation Physics Laboratory, Department of Physics, COMSATS Institute of Information Technology, Park Road, Islamabad, Pakistan
| | - K H Shah
- Pakistan Stone Development Company, G-8/1, Islamabad, Pakistan
| | - T Ahmed
- Pakistan Stone Development Company, G-8/1, Islamabad, Pakistan
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