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Methods and Protocols, Volume 7, Issue 1

2024 February - 17 articles

Cover Story: High-grade glioblastoma multiforme is the deadliest brain tumor that is not yet curable. A new approach targeting glioblastoma cells is to produce pseudotyped viral particles that use the neurotropic properties of the Zika virus. The generated viral pseudotype is a particle with the inner core of a lentivirus such as HIVgfp (env-) coated with the envelope proteins of Zika virus. In this protocol, we describe the generation of a ZIKV/HIV-1 lentiviral vector with a 2-plasmid system using a nef+, gfp+, env- HIV plasmid and a second plasmid for Zika virus protein E, which was linked to the HIV-1 gp41 transmembrane domain. The functional number of pseudotype particles generated was significantly increased compared to previously published protocols. View this paper
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Articles (17)

  • Protocol
  • Open Access
12 Citations
3,554 Views
21 Pages

Crafting a Rigorous, Clinically Relevant Large Animal Model of Chronic Myocardial Ischemia: What Have We Learned in 20 Years?

  • Christopher R. Stone,
  • Dwight D. Harris,
  • Mark Broadwin,
  • Meghamsh Kanuparthy,
  • Sharif A. Sabe,
  • Cynthia Xu,
  • Jun Feng,
  • M. Ruhul Abid and
  • Frank W. Sellke

19 February 2024

The past several decades have borne witness to several breakthroughs and paradigm shifts within the field of cardiovascular medicine, but one component that has remained constant throughout this time is the need for accurate animal models for the ref...

  • Article
  • Open Access
6 Citations
5,274 Views
22 Pages

Assessment of the Integrity and Function of Human Term Placental Explants in Short-Term Culture

  • Carolina López-Guzmán,
  • Ana María García,
  • Paula Marín and
  • Ana María Vásquez

15 February 2024

Human placental explants (HPEs) culture has generated significant interest as a valuable in vitro model for studying tissue functions in response to adverse conditions, such as fluctuations in oxygen levels, nutrient availability, exposure to pathoge...

  • Study Protocol
  • Open Access
3 Citations
4,280 Views
12 Pages

Pilot Study: Safety and Performance Validation of an Ingestible Medical Device for Collecting Small Intestinal Liquid in Healthy Volunteers

  • Alexandre Tronel,
  • Anne-Sophie Silvent,
  • Elena Buelow,
  • Joris Giai,
  • Corentin Leroy,
  • Marion Proust,
  • Donald Martin,
  • Audrey Le Gouellec,
  • Thomas Soranzo and
  • Nicolas Mathieu

4 February 2024

The connection between imbalances in the human gut microbiota, known as dysbiosis, and various diseases has been well established. Current techniques for sampling the small intestine are both invasive for patients and costly for healthcare facilities...

  • Article
  • Open Access
2 Citations
3,223 Views
10 Pages

Correlation between Tooth Position Parameters and Apical Fenestration: A Cone-Beam Computed Tomography Study

  • Carlos Henrique Ferrari,
  • Lara Steffany de Carvalho,
  • Caroline Trefiglio Rocha and
  • Amjad Abu Hasna

2 February 2024

This study aimed to assess the relationship between apical fenestration—a defect in the alveolar bone involving the root apex—and tooth position in all tooth groups, excluding the third molars, utilizing cone-beam computed tomography (CBC...

  • Protocol
  • Open Access
3 Citations
11,990 Views
31 Pages

1 February 2024

The development of monoclonal antibodies (mAbs) represents a significant milestone in both basic research and clinical applications due to their target specificity and versatility in therapeutic and diagnostic applications. The innovative strategy of...

  • Article
  • Open Access
4 Citations
3,856 Views
13 Pages

26 January 2024

The rapid advancement of genetic technologies has made it possible to modify various plants through both genetic transformation and gene editing techniques. Poplar, with its rapid in vitro growth and regeneration enabling high rates of micropropagati...

  • Technical Note
  • Open Access
3 Citations
8,519 Views
10 Pages

25 January 2024

Knowledge of the geometric quantities of the erythrocyte is useful in several physiological studies, both for zoologists and veterinarians. While the diameter and volume (MCV) are easily obtained from observations of blood smears and complete blood c...

  • Article
  • Open Access
2 Citations
3,887 Views
12 Pages

23 January 2024

Ostarine is frequently misused as a selective androgen receptor modulator (SARM) in sports. Consequently, there is a pressing need for reliable and simple approaches to monitor its presence in biological systems. In this work, we developed a two-dime...

  • Protocol
  • Open Access
6 Citations
3,220 Views
12 Pages

Spinal muscular atrophy is a neuromuscular disorder caused by mutations in both copies of the survival motor neuron gene 1 (SMN1), which lead to reduction in the production of the SMN protein. Currently, there are several therapies that have been app...

  • Protocol
  • Open Access
4 Citations
4,393 Views
10 Pages

Lateral flow immunochromatographic (LFI) tests are widely used in both biomedical and forensic sciences for different applications. In forensic sciences, their main use is to detect body fluids at crime scenes. However, there are situations in which...

  • Article
  • Open Access
5 Citations
4,541 Views
12 Pages

Mapping m6A Sites on HIV-1 RNA Using Oligonucleotide LC-MS/MS

  • Alice Baek,
  • Asif Rayhan,
  • Ga-Eun Lee,
  • Sarah Golconda,
  • Hannah Yu,
  • Shihyoung Kim,
  • Patrick A. Limbach,
  • Balasubrahmanyam Addepalli and
  • Sanggu Kim

The biological significance of chemical modifications to the ribonucleic acid (RNA) of human immunodeficiency virus type-1 (HIV-1) has been recognized. However, our understanding of the site-specific and context-dependent roles of these chemical modi...

  • Article
  • Open Access
7 Citations
3,796 Views
18 Pages

Wastewater-based epidemiology (WBE) has great potential to monitor community public health, especially during pandemics. However, it faces substantial hurdles in pathogen surveillance through WBE, encompassing data representativeness, spatiotemporal...

  • Study Protocol
  • Open Access
9 Citations
5,802 Views
12 Pages

Introducing Artificial Intelligence in Interpretation of Foetal Cardiotocography: Medical Dataset Curation and Preliminary Coding—An Interdisciplinary Project

  • Jasmin Leonie Aeberhard,
  • Anda-Petronela Radan,
  • Ramin Abolfazl Soltani,
  • Karin Maya Strahm,
  • Sophie Schneider,
  • Adriana Carrié,
  • Mathieu Lemay,
  • Jens Krauss,
  • Ricard Delgado-Gonzalo and
  • Daniel Surbek

Artificial intelligence (AI) is gaining increasing interest in the field of medicine because of its capacity to process big data and pattern recognition. Cardiotocography (CTG) is widely used for the assessment of foetal well-being and uterine contra...

  • Study Protocol
  • Open Access
2 Citations
3,134 Views
8 Pages

Introduction: Tuberculosis (TB) and Human Immunodeficiency Virus (HIV) remain major public health issues in sub-Saharan Africa. The co-occurrence of these diseases is a growing concern in the region, and social determinants, the circumstances under w...

  • Protocol
  • Open Access
1 Citations
3,648 Views
14 Pages

Generation of Viral Particles with Brain Cell-Specific Tropism by Pseudotyping HIV-1 with the Zika Virus E Protein

  • Hai Dang Ngo,
  • Jan Patrick Formanski,
  • Vivien Grunwald,
  • Birco Schwalbe and
  • Michael Schreiber

28 December 2023

Flaviviruses are a family of RNA viruses that includes many known pathogens, such as Zika virus (ZIKV), West Nile virus (WNV), dengue virus (DENV), and yellow fever virus (YFV). A pseudotype is an artificial virus particle created in vitro by incorpo...

  • Article
  • Open Access
3,108 Views
18 Pages

Nesting Ecology of Lepidochelys olivacea in Lobito, Angola

  • Inês M. Ferreira,
  • Luz Murillo,
  • Jean-Marie Le-Corre,
  • Marco Correia,
  • Rita Anastácio and
  • Mário J. Pereira

27 December 2023

The scarcity on the Atlantic coast of the African sea turtle population and its dynamics data is well known. This article discusses the nesting ecology methods and analysis of a nascent Angolan project aimed at preserving the nesting female populatio...

  • Communication
  • Open Access
2 Citations
3,225 Views
14 Pages

Valorizing Tree-Nutshell Particles as Delivery Vehicles for a Natural Herbicide

  • Jong H. Kim,
  • Kathleen L. Chan,
  • William M. Hart-Cooper,
  • DeAngela Ford,
  • Kaydren Orcutt,
  • Jeffrey D. Palumbo,
  • Christina C. Tam and
  • William J. Orts

20 December 2023

The United States is a principal producer of tree nuts (almonds, pistachios, and walnuts), resulting in the generation of excess of tree-nutshell by-products each year, with few market outlets. A nutshell is an essential, lignocellulosic layer that p...

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Methods Protoc. - ISSN 2409-9279