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Article ; Online: Mitigation Measures to Control the Expected Mpox Outbreak in a Developing Country—Pakistani Scenario

Shiza Malik / Muhammad Asghar / Yasir Waheed

Vaccines, Vol 11, Iss 502, p

2023 Volume 502

Abstract: Mpox (previously named Monkeypox) is one of the neglected viral infectious diseases that remained silent for a long period before finally emerging as a threat to the healthcare system in endemic regions of the world in recent years. It has been mostly ... ...

Abstract	Mpox (previously named Monkeypox) is one of the neglected viral infectious diseases that remained silent for a long period before finally emerging as a threat to the healthcare system in endemic regions of the world in recent years. It has been mostly centered in African countries but has now been reported in other non-endemic regions as well. While keeping a strict eye on COVID pandemic handling, there is a need to remain concerned and alert about viral threats such as Mpox infections in the future. This situation has altered the healthcare system of endemic regions, including Pakistan, to stay vigilant against the expected Mpox outbreaks in the coming months. Though no specific cases have been reported in Pakistan, the healthcare system needs to take mitigation measures to tackle an expected threat before it arrives. This is important in order to avoid another major shock to the health care system of Pakistan. Moreover, since no specific treatment is available for Mpox, we can only rely upon mitigation measures, involving preventive and treatment strategies devised around some already in-use antiviral agents against Mpox viruses. Moreover, there is an imperative need to proactively prepare the healthcare system against Mpox outbreaks, spread awareness, and involve the public in a participatory approach to stay well prepared against any such infection. Moreover, there is a need to utilize financial sources, aids, and funds wisely, to create awareness in the public about such expected healthcare outbreaks in the future.
Keywords	Mpox virus ; recent outbreaks ; healthcare management ; mitigation measures clinical management ; Medicine ; R
Subject code	360
Language	English
Publishing date	2023-02-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Emerging Applications of Nanotechnology in Healthcare and Medicine

Shiza Malik / Khalid Muhammad / Yasir Waheed

Molecules, Vol 28, Iss 6624, p

2023 Volume 6624

Abstract: Knowing the beneficial aspects of nanomedicine, scientists are trying to harness the applications of nanotechnology in diagnosis, treatment, and prevention of diseases. There are also potential uses in designing medical tools and processes for the new ... ...

Abstract	Knowing the beneficial aspects of nanomedicine, scientists are trying to harness the applications of nanotechnology in diagnosis, treatment, and prevention of diseases. There are also potential uses in designing medical tools and processes for the new generation of medical scientists. The main objective for conducting this research review is to gather the widespread aspects of nanomedicine under one heading and to highlight standard research practices in the medical field. Comprehensive research has been conducted to incorporate the latest data related to nanotechnology in medicine and therapeutics derived from acknowledged scientific platforms. Nanotechnology is used to conduct sensitive medical procedures. Nanotechnology is showing successful and beneficial uses in the fields of diagnostics, disease treatment, regenerative medicine, gene therapy, dentistry, oncology, aesthetics industry, drug delivery, and therapeutics. A thorough association of and cooperation between physicians, clinicians, researchers, and technologies will bring forward a future where there is a more calculated, outlined, and technically programed field of nanomedicine. Advances are being made to overcome challenges associated with the application of nanotechnology in the medical field due to the pathophysiological basis of diseases. This review highlights the multipronged aspects of nanomedicine and how nanotechnology is proving beneficial for the health industry. There is a need to minimize the health, environmental, and ethical concerns linked to nanotechnology.
Keywords	nanotechnology ; nanobiotechnology ; nanomedicine ; medical applications ; diagnosis ; disease treatment ; Organic chemistry ; QD241-441
Subject code	170
Language	English
Publishing date	2023-09-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Recent Developments in Mpox Prevention and Treatment Options

Shiza Malik / Tahir Ahmad / Omar Ahsan / Khalid Muhammad / Yasir Waheed

Vaccines, Vol 11, Iss 500, p

2023 Volume 500

Abstract: Human mpox is an emerging epidemic in the world. The monkey pox virus (MPXV) belongs to the same family of zoonotic Orthopoxviridae as that of the smallpox virus and exhibits similar clinical symptomology. Information regarding its diagnostics, disease ... ...

Abstract	Human mpox is an emerging epidemic in the world. The monkey pox virus (MPXV) belongs to the same family of zoonotic Orthopoxviridae as that of the smallpox virus and exhibits similar clinical symptomology. Information regarding its diagnostics, disease epidemiology, surveillance, preventive methods, and treatment strategies are being collated with time. The purpose of this review is to trace the recent events in the scientific platform that have defined new preventive and treatment strategies against mpox. A methodological approach has been used to gather data from the latest literature to comprehensively overview the emerging treatment options. The results portion will cover details regarding the prevention of mpox. It will also shed light on a brief description of contemporary vaccines and antiviral agents that have been evaluated for their treatment potential since the emergence of the mpox threat. These treatment options are setting the pace for controlling the widespread monkeypox infection. However, the limitations attached to these treatment strategies need to be tackled quickly to increase their efficacy so that they can be deployed on a large scale for the prevention of this epidemic becoming another pandemic in this decade.
Keywords	MPXV ; mpox ; therapeutics ; antiviral agents ; vaccines ; novel therapeutic ; Medicine ; R
Language	English
Publishing date	2023-02-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Ebola in West Africa

Yasir Waheed

Asian Pacific Journal of Tropical Biomedicine, Vol 4, Iss 9, Pp 673-

an international medical emergency

2014 Volume 674

Abstract: West Africa is facing the worst Ebola outbreak with 3 685 cases and 1 841 deaths reported from Liberia, Guinea, Senegal, Sierra Leona and Nigeria. There is no vaccine or direct treatment available to treat the patients with Ebola. World Health ... ...

Abstract	West Africa is facing the worst Ebola outbreak with 3 685 cases and 1 841 deaths reported from Liberia, Guinea, Senegal, Sierra Leona and Nigeria. There is no vaccine or direct treatment available to treat the patients with Ebola. World Health Organization (WHO) has approved the use of experimental drugs for Ebola patients. Health workers are at high risk. The governments and WHO are responsible to provide necessary protective equipment to health workers dealing with Ebola. There is a strong need to identify the invisible chains of virus transmission. World Bank pledges $200 million to fight against Ebola, while WHO said $430 million are needed to control the Ebola outbreak. Ebola can be contained by early detection and isolation of case, contact tracing, monitoring of contacts and adaptation of rigorous procedures for virus control.
Keywords	Ebola ; West Africa ; Therapeutics ; Health workers ; Arctic medicine. Tropical medicine ; RC955-962 ; Biology (General) ; QH301-705.5
Language	English
Publishing date	2014-09-01T00:00:00Z
Publisher	Wolters Kluwer Medknow Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Prediction of promiscuous epitopes in ORF2 of Hepatitis E virus: an

Samavia, Noor / Fahed, Parvaiz / Yasir, Waheed / Tasneem, Anwar / Syeda, Nasreen

African health sciences

2023 Volume 22, Issue 3, Page(s) 626–639

Abstract: Background: Vaccine development against emerging infections is essentially important for saving people from increasing viral infections. In developing countries, Hepatitis E (HEV) is a common infection affecting millions of people worldwide. Based on In- ...

Abstract	Background: Vaccine development against emerging infections is essentially important for saving people from increasing viral infections. In developing countries, Hepatitis E (HEV) is a common infection affecting millions of people worldwide. Based on In-silico analysis, different approaches have been targeted. Objectives: Rationale of this study is to design an epitope-based vaccine candidates with the help of immunoinformatics that can predict promiscuous B-cell and T-cell epitopes of the most antigenic HEV-ORF2 capsid protein. Materials & methods: This study suggests potential T-cell and B-cell epitopes of the highly antigenic HEV ORF2 capsid protein while using various In-silico tools such as NCBI-BLAST, Expassy, CLC workbench, Ellipro and Discotope. Results: Potential antigenic and immunogenic CD8+ T-cell epitopes were predicted from the global consensus sequence of ORF2-HEV. Furthermore, twenty-two linear B-cell epitopes were predicted. Among these, "SLGAGPV" at position 587-593 and "LEFRNLTPGNTNTRVSRYSS" at position 306-325 were most antigenic with antigenicity score 1.4206 and 1.3600 respectively. Discontinuous B-cell epitopes were found by three-dimensional capsid protein structure. Epitopes predicted in this study reveal high antigenicity and promiscuity for HLA classes. Conclusion: Collectively, our data suggests promiscuous epitopes that can potentially acts as new candidates for the design of HEV peptide vaccine.
MeSH term(s)	Humans ; Capsid Proteins ; Epitopes, B-Lymphocyte/chemistry ; Epitopes, T-Lymphocyte ; Hepatitis E ; Hepatitis E virus
Chemical Substances	Capsid Proteins ; Epitopes, B-Lymphocyte ; Epitopes, T-Lymphocyte ; ORF2 protein, Hepatitis E virus
Language	English
Publishing date	2023-02-28
Publishing country	Uganda
Document type	Journal Article
ZDB-ID	2240308-5
ISSN	1729-0503 ; 1680-6905
ISSN (online)	1729-0503
ISSN	1680-6905
DOI	10.4314/ahs.v22i3.67
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Article ; Online: Immunoinformatics-Based Proteome Mining to Develop a Next-Generation Vaccine Design against Borrelia burgdorferi

Kashaf Khalid / Omar Ahsan / Tanwir Khaliq / Khalid Muhammad / Yasir Waheed

Vaccines, Vol 10, Iss 8, p

The Cause of Lyme Borreliosis

2022 Volume 1239

Abstract: The tick-borne bacterium, Borrelia burgdorferi has been implicated in Lyme disease—a deadly infection, formerly confined to North America, but currently widespread across Europe and Asia. Despite the severity of this disease, there is still no human Lyme ...

Abstract	The tick-borne bacterium, Borrelia burgdorferi has been implicated in Lyme disease—a deadly infection, formerly confined to North America, but currently widespread across Europe and Asia. Despite the severity of this disease, there is still no human Lyme disease vaccine available. A reliable immunoinformatic approach is urgently needed for designing a therapeutic vaccine against this Gram-negative pathogen. Through this research, we explored the immunodominant proteins of B. burgdorferi and developed a novel and reliable vaccine design with great immunological predictability as well as low contamination and autoimmunity risks. Our initial analysis involved proteome-wide analysis to filter out proteins on the basis of their redundancy, homology to humans, virulence, immunogenicity, and size. Following the selection of proteins, immunoinformatic tools were employed to identify MHC class I & II epitopes and B-cell epitopes, which were subsequently subjected to a rigorous screening procedure. In the final formulation, ten common MHC-I and II epitopes were used together with a suitable adjuvant. We predicted that the final chimeric multi-epitope vaccine could invoke B-cell responses and IFN-gamma-mediated immunity as well as being stable and non-allergenic. The dynamics simulations predicted the stable folding of the designed molecule, after which the molecular docking predicted the stability of the interaction between the potential antigenic epitopes and human immune receptors. Our studies have shown that the designed next-generation vaccine stimulates desirable immune responses, thus potentially providing a viable way to prevent Lyme disease. Nevertheless, further experimental studies in a wet lab are needed in order to validate the results.
Keywords	Borrelia burgdorferi ; Lyme borreliosis ; molecular dynamics simulations ; molecular docking ; next-generation vaccine ; Medicine ; R
Language	English
Publishing date	2022-08-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Immunoinformatics and Evaluation of Peptide Vaccines Derived from Global Hepatitis B Viral HBx and HBc Proteins Critical for Covalently Closed Circular DNA Integrity

Umar Saeed / Zahra Zahid Piracha / Salman Alrokayan / Tajamul Hussain / Fahad N. Almajhdi / Yasir Waheed

Microorganisms, Vol 11, Iss 12, p

2023 Volume 2826

Abstract: The Hepatitis B virus (HBV) HBx and HBc proteins play a crucial role in associating with covalently closed circular DNA (cccDNA), the primary factor contributing to intrahepatic viral persistence and a major obstacle in achieving a cure for HBV. The ... ...

Abstract	The Hepatitis B virus (HBV) HBx and HBc proteins play a crucial role in associating with covalently closed circular DNA (cccDNA), the primary factor contributing to intrahepatic viral persistence and a major obstacle in achieving a cure for HBV. The cccDNA serves as a reservoir for viral persistence. Targeting the viral HBc and HBx proteins’ interaction with cccDNA could potentially limit HBV replication. In this study, we present epitopes identified from global consensus sequences of HBx and HBc proteins that have the potential to serve as targets for the development of effective vaccine candidates. Furthermore, conserved residues identified through this analysis can be utilized in designing novel, site-specific anti-HBV agents capable of targeting all major genotypes of HBV. Our approach involved designing global consensus sequences for HBx and HBc proteins, enabling the analysis of variable regions and highly conserved motifs. These identified motifs and regions offer potent sites for the development of peptide vaccines, the design of site-specific RNA interference, and the creation of anti-HBV inhibitors. The epitopes derived from global consensus sequences of HBx and HBc proteins emerge as promising targets for the development of effective vaccine candidates. Additionally, the conserved residues identified provide valuable insights for the development of innovative, site-specific anti-HBV agents capable of targeting all major genotypes of HBV from A to J.
Keywords	global HBV ; HBx ; HBc ; cccDNA ; peptide vaccines ; Biology (General) ; QH301-705.5
Subject code	570
Language	English
Publishing date	2023-11-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Clinical Performance of Cobas 6800 for the Detection of High-Risk Human Papillomavirus in Urine Samples

Brian Joseph Hajjar / Ummar Raheel / Rachel Manina / Jovanie Simpson / Muhammad Irfan / Yasir Waheed

Vaccines, Vol 11, Iss 1071, p

2023 Volume 1071

Abstract: Testing for high-risk human papillomavirus (HPV) as part of primary cervical cancer screening has become more common recently. The Cobas 6800, an FDA-approved cervical screening platform, detects 14 high-risk HPVs, including HPV16 and HPV18. However, ... ...

Abstract	Testing for high-risk human papillomavirus (HPV) as part of primary cervical cancer screening has become more common recently. The Cobas 6800, an FDA-approved cervical screening platform, detects 14 high-risk HPVs, including HPV16 and HPV18. However, this test is limited to only women, which leads to low screening rates in trans men and other non-binary people. The cervical screening of trans men and other genders, especially those lying on the female-to-male spectrum, is equally important. Furthermore, cisgender males, particularly homosexuals, are also prone to chronic HPV infections and serve as HPV carriers, transmitting it to women and other men through sexual contact. Another limitation of the test is its invasive specimen collection, which induces discomfort and genital dysphoria. Therefore, there is a need for an innovative, less invasive method that would allow the sampling process to be more comfortable. In this study, we assess the performance of the Cobas 6800 for high-risk HPV detection in urine samples spiked with HPV16, HPV18, and HPV68. The limit of detection (LOD) was calculated using a dilution series (1.25–10,000 copies/mL) over a course of three days. Furthermore, the clinical validation was performed by calculating sensitivity, specificity, and accuracy. The limit of detection ranged from 50–1000 copies/mL depending upon the genotype. Moreover, the urine test demonstrated a high clinical sensitivity of 93%, 94%, and 90% for HPV16, HPV18, and HPV68, with 100% specificity. The overall percent agreement was calculated to be 95% for both HPV16 and HPV18, and 93% for HPV68. The high concordance, reproducibility, and clinical performance of the current assay suggest that the urine-based HPV test fulfills the requirements for its use in primary cervical screening. Moreover, it has the potential to be used for mass screening to not only identify high-risk individuals, but also to monitor vaccine effectiveness.
Keywords	HPV ; cervical cancer ; Cobas 6800 ; urine testing ; gender-neutral screening ; Medicine ; R
Subject code	610
Language	English
Publishing date	2023-06-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Design of a Multi-Epitopes Vaccine against Hantaviruses

Saba Ismail / Sumra Wajid Abbasi / Maha Yousaf / Sajjad Ahmad / Khalid Muhammad / Yasir Waheed

Vaccines, Vol 10, Iss 378, p

An Immunoinformatics and Molecular Modelling Approach

2022 Volume 378

Abstract: Hantaviruses are negative-sense, enveloped, single-stranded RNA viruses of the family Hantaviridae. In recent years, rodent-borne hantaviruses have emerged as novel zoonotic viruses posing a substantial health issue and socioeconomic burden. In the ... ...

Abstract	Hantaviruses are negative-sense, enveloped, single-stranded RNA viruses of the family Hantaviridae. In recent years, rodent-borne hantaviruses have emerged as novel zoonotic viruses posing a substantial health issue and socioeconomic burden. In the current research, a reverse vaccinology approach was applied to design a multi-epitope-based vaccine against hantavirus. A set of 340 experimentally reported epitopes were retrieved from Virus Pathogen Database and Analysis Resource (ViPR) and subjected to different analyses such as antigenicity, allergenicity, solubility, IFN gamma, toxicity, and virulent checks. Finally, 10 epitopes which cleared all the filters used were linked with each other through specific GPGPG linkers to construct a multi-antigenic epitope vaccine. The designed vaccine was then joined to three different adjuvants—TLR4-agonist adjuvant, β-defensin, and 50S ribosomal protein L7/L12—using an EAAAK linker to boost up immune-stimulating responses and check the potency of vaccine with each adjuvant. The designed vaccine structures were modelled and subjected to error refinement and disulphide engineering to enhance their stability. To understand the vaccine binding affinity with immune cell receptors, molecular docking was performed between the designed vaccines and TLR4; the docked complex with a low level of global energy was then subjected to molecular dynamics simulations to validate the docking results and dynamic behaviour. The docking binding energy of vaccines with TLR4 is −29.63 kcal/mol (TLR4-agonist), −3.41 kcal/mol (β-defensin), and −11.03 kcal/mol (50S ribosomal protein L7/L12). The systems dynamics revealed all three systems to be highly stable with a root-mean-square deviation (RMSD) value within 3 Å. To test docking predictions and determine dominant interaction energies, binding free energies of vaccine(s)–TLR4 complexes were calculated. The net binding energy of the systems was as follows: TLR4-agonist vaccine with TLR4 (MM–GBSA, −1628.47 kcal/mol and MM–PBSA, −37.75 kcal/mol); ...
Keywords	hantaviruses ; ViPR database ; multi-epitope database ; molecular dynamics simulations ; binding free energies ; Medicine ; R
Subject code	541
Language	English
Publishing date	2022-02-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Clinical outcomes of moderate to severe COVID-19 patients receiving invasive vs. non-invasive ventilation

Zubia Jamil / Samreen Khalid / Shahid Mumtaz Abbasi / Yasir Waheed / Jamal Ahmed

Asian Pacific Journal of Tropical Medicine, Vol 14, Iss 4, Pp 176-

2021 Volume 182

Abstract: Objective: To evaluate the in-hospital outcome of moderate to severe COVID-19 patients admitted in High Dependency Unit (HDU) in relation to invasive vs. non-invasive mode of ventilation. Methods: In this study, the patients required either non-invasive [ ...

Abstract	Objective: To evaluate the in-hospital outcome of moderate to severe COVID-19 patients admitted in High Dependency Unit (HDU) in relation to invasive vs. non-invasive mode of ventilation. Methods: In this study, the patients required either non-invasive [oxygen ≤10 L/min or >10 L/min through mask or nasal prongs, rebreather masks and bilevel positive airway pressure (BiPAP)] or invasive ventilation. For analysis of 30-day in hospital mortality in relation to use of different modes of oxygen, Kaplan Meier and log rank analyses were used. In the end, independent predictors of survival were determined by Cox regression analysis. Results: Invasive ventilation was required by 15.1% patients while 84.9% patients needed non-invasive ventilation. Patients with evidence of thromboembolism, high inflammatory markers and hypoxemia mainly required invasive ventilation. The 30-day in hospital mortality was 72.7% for the invasive group and 12.9% for the non-invasive group (1.8% oxygen <10 L/min, 0.9% oxygen >10 L/min, 3.6% rebreather mask and 4.5% BiPAP). The median time from hospital admission to outcome was 7 days for the invasive group and 18 days for the non-invasive group (P<0.05). Age, presence of co-morbidities, number of days requiring oxygen, rebreather, BiPAP and invasive ventilation were independent predictors of outcome. Conclusions: Invasive mechanical ventilation is associated with adverse outcomes possibly due to ventilator associated lung injury. Thus, protective non-invasive ventilation remains the necessary and safe treatment for severely hypoxic COVID-19 patients.
Keywords	covid-19 ; sars-cov-2 ; non-invasive ventilation ; respiratory insufficiency ; hypoxia ; mechanical ventilation ; Arctic medicine. Tropical medicine ; RC955-962
Subject code	610
Language	English
Publishing date	2021-01-01T00:00:00Z
Publisher	Wolters Kluwer Medknow Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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