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Dilshad, Ahmad,Abulkhair, Omalkhair,Nemenqani, Dalal,Tamimi, Waleed Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.11
Breast cancer is the most commonly diagnosed cancer in women in the world and is one of the leading causes of death due to cancer. Health benefits have been linked to additive and synergistic combinations of phytochemicals in fruits and vegetables. Nigella sativa has been shown to possess anti-carcinogenic activity, inhibiting growth of several cancer cell lines in vitro. However, the molecular mechanisms of the anti-cancer properties of Nigella sativa phytochemical extracts have not been completely understood. Our data showed that Nigella sativa extracts significantly inhibited human breast cancer MDA-MB-231 cell proliferation at doses of $2.5-5{\mu}g/mL$ (P<0.05). Apoptotic induction in MDA-MB-231 cells was observed in a dose-dependent manner after exposure to Nigella sativa extracts for 48 h. Real time PCR and flow cytometry analyses suggested that Nigella sativa extracts possess the ability to suppress the proliferation of human breast cancer cells through induction of apoptosis.
Dilshad Ahmed Khan,Mariam S Sharif,Farooq Ahmad Khan 대한진단검사의학회 2011 Annals of Laboratory Medicine Vol.31 No.3
Background: Early diagnosis is the cornerstone of management of acute myocardial infarction (AMI). We aimed to compare the diagnostic accuracy of high-sensitivity troponin T (hs-cTnT) with myeloperoxidase (MPO) and pregnancy-associated plasma protein A (PAPP-A) for early diagnosis of AMI in patients at the time of presentation to the emergency department (ED). Methods: We enrolled 289 patients who presented at the ED of the National Institute of Heart Disease (NIHD) Rawalpindi, Pakistan, within 4 hr of onset of chest pain. Clinical assessment, electrocardiography (ECG), and angiography were carried out. Blood samples were collected at 0, 3, 6, and 12 hr. Analyses of plasma hs-cTnT, MPO, and PAPP-A were carried out using commercial kits. Results: Out of 289 subjects who presented to the ED, we diagnosed 180 patients with coronary heart disease as having AMI (N= 61) and 119 as without AMI (stable coronary artery disease, N=61; unstable angina, N=58). Compared to non-AMI patients, the patients with AMI had significantly higher levels (represented here as median [inter quartile range]) of plasma hs-cTnT (136 [39-370] vs. 12 [7-21] ng/L), MPO (906 [564-1,631] vs. 786 [351-1,299] pmol/L) and PAPP-A (5.78 [2.67-13.4] vs. 2.8 [1.8-4.9] mIU/L). Receiver operator characteristic curves (95% CI) for hs-cTnT (0.952 [0.909-0.978]) were significantly higher (P<0.001) than those for MPO (0.886 [0.830-0.929]) and PAPP-A (0.797 [0.730-0.854]), with AMI sensitivity and specificity percentages of 87% and 98% (hs-cTnT), 82% and 84% (MPO), and 65% and 87% (PAPP-A), respectively. Conclusions: The diagnostic performance of hs-cTnT was superior to that of MPO and PAPP-A for early triage and diagnosis of AMI among patients of coronary heart disease presenting with chest pain to the ED. Background: Early diagnosis is the cornerstone of management of acute myocardial infarction (AMI). We aimed to compare the diagnostic accuracy of high-sensitivity troponin T (hs-cTnT) with myeloperoxidase (MPO) and pregnancy-associated plasma protein A (PAPP-A) for early diagnosis of AMI in patients at the time of presentation to the emergency department (ED). Methods: We enrolled 289 patients who presented at the ED of the National Institute of Heart Disease (NIHD) Rawalpindi, Pakistan, within 4 hr of onset of chest pain. Clinical assessment, electrocardiography (ECG), and angiography were carried out. Blood samples were collected at 0, 3, 6, and 12 hr. Analyses of plasma hs-cTnT, MPO, and PAPP-A were carried out using commercial kits. Results: Out of 289 subjects who presented to the ED, we diagnosed 180 patients with coronary heart disease as having AMI (N= 61) and 119 as without AMI (stable coronary artery disease, N=61; unstable angina, N=58). Compared to non-AMI patients, the patients with AMI had significantly higher levels (represented here as median [inter quartile range]) of plasma hs-cTnT (136 [39-370] vs. 12 [7-21] ng/L), MPO (906 [564-1,631] vs. 786 [351-1,299] pmol/L) and PAPP-A (5.78 [2.67-13.4] vs. 2.8 [1.8-4.9] mIU/L). Receiver operator characteristic curves (95% CI) for hs-cTnT (0.952 [0.909-0.978]) were significantly higher (P<0.001) than those for MPO (0.886 [0.830-0.929]) and PAPP-A (0.797 [0.730-0.854]), with AMI sensitivity and specificity percentages of 87% and 98% (hs-cTnT), 82% and 84% (MPO), and 65% and 87% (PAPP-A), respectively. Conclusions: The diagnostic performance of hs-cTnT was superior to that of MPO and PAPP-A for early triage and diagnosis of AMI among patients of coronary heart disease presenting with chest pain to the ED.
Scene Understanding in UAVs via Semantic Ontology
Naqqash Dilshad,JaeSeung Song 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.6
Recently object tracking and detection backed by Unmanned Aerial Vehicles (UAV) have gained a lot of interest specifically in research fields like security surveillance, traffic monitoring, and search and rescue operations in a natural disaster situation. The key challenges in visual tracking with consumer UAVs appear in the form of continuous change in the appearance of the object of interest, target representation, target object detection, and localization in real-time. Consistent object detection mainly depends on various factors that include image noise, obstructions in the line of sight, variance in lightning conditions, posture changes, and hazy or blurriness in the image that might affect object labeling. To counter this problem, this article proposes an approach in which tracked objects in a scene is entirely described by adding contextual information, i.e., natural features, locality of the scene, and general points of interest. Each situation is described semantically by ontological statements that define the environment.
Ahmad, Dilshad,Bakairy, Abdul Karieem,Katheri, Abdull Malika,Tamimi, Waleed Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.9
Cigarette smoke contains oxidants and free radicals which are carcinogens that can induce mutations in humans. Single nucleotide polymorphisms (SNPs) are the most frequent genetic alterations found in the human genome. In the present study, we have examined the ability of the murine double minute 2 (Mdm2) (rs769412) A>G polymorphism in cigarette smokers to predict risk of cancers. Our results showed that of smokers, 87% were found with AA genotype, 10% with heterozygous AG genotype, and 3% with GG genotype. The heterozygous AG genotype was observed in a lower percentage of smokers (10%) as compared to non-smokers (18%), whereas, homozygous AA genotype was observed in lower percentage of non-smokers (81%) as compared to the smokers (87%). The results from present study support the association with an allele and AG genotype in non-smokers. However, further studies are required to establish the role of Mdm2 (rs769412) C>T in cigarettes smokers and diseases.
Privacy Preservation in IoT systems via Blockchains: A Brief Review
Naqqash Dilshad,Kelvin Dushime,JaeSeung Song 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.2
Modern-day Internet of Things (IoT) techniques are paving their path for a revolutionized world in which most of the everyday items that we use will be interconnected. These entities will be able to connect and share information to mechanize the majority of our tasks. This interconnection of edge devices needs security, impeccable authentication, robustness, and effortless maintenance services. To provide such relevant features, blockchain appears as a sustainable solution. The decentralized nature of blockchain has solved numerous security, maintenance, and authentication issues of IoT systems. Consequently, enormous growth in applications of blockchain-based IoT systems can be witnessed in recent years. However, a blockchain-based IoT network is public, so transactional details and encrypted keys are open and visible to everyone in that network. Thus, any foe can infer critical information of users from this public infrastructure. In this study, we discuss the privacy issues caused due to the integration of blockchain in IoT applications by focusing on the applications of our daily use. Furthermore, we highlighted the implementation of privacy preservation strategies in blockchain-based IoT systems.
Muhammad Rizwan Dilshad,Atif Islam,Aneela Sabir,Muhammad Shafiq,Muhammad Taqi Zahid Butt,Aamir Ijaz,Tahir Jamil 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.55 No.-
In this study zinc oxide filled and unfilled polyvinyl alcohol (PVA)/polyethylene glycol (PEG) 600 blended membranes with different degrees of cross-linking (mol%) were prepared using formaldehyde as a crosslinking agent and characterized by FTIR, SEM, TGA, mechanical analysis and permeation testing for CO2 and N2 gases. The effects of synthesis parameters like cross-linking ratio, wt.% PEG content and wt.% zinc oxide content on the membrane characteristics were also investigated. It was found that at 60 mol% degree of cross-linking and 60 wt.% PEG content, the membranes showed maximum CO2/N2 ideal selectivity of 26 and reasonable CO2 permeability of 52.9 Barrers at 25 C and 1.5 bar. It was also found that at 2 wt.% zinc oxide content, membranes showed highest CO2/N2 ideal selectivity of 112.8 and maximum CO2 permeability of 423 Barrers at 25 C and 1.5 bar.