Reverse transcription loop-mediated isothermal amplification (RT-LAMP) is a rapid and inexpensive isothermal alternative to the current gold standard reverse transcription quantitative polymerase chain reaction (RT-qPCR) for the detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, unlike RT-qPCR, there are no consensus detection regions or optimal RT-LAMP methods, and most protocols do not include internal controls to ensure reliability. Naked RNAs, plasmids, or even RNA from infectious COVID-19 patients have been used as external positive controls for RT-LAMP assays, but such reagents lack the stability required for full-process control. To overcome the lack of proper internal and external positive controls and the instability of the detection RNA, we developed virus-like particles (VLPs) using bacteriophage Qβ and plant virus cowpea chlorotic mottle virus (CCMV) for the encapsidation of target RNA, namely a so-called SARS-CoV-2 LAMP detection module (SLDM). The target RNA is a truncated segment of the SARS-CoV-2 nucleocapsid (N) gene and human RNase P gene (internal control) as positive controls for RT-qPCR and RT-LAMP. Target RNAs stably encapsidated in Qβ and CCMV VLPs were previously shown to function as full-process controls in RT-qPCR assays, and here we show that SLDMs can fulfill the same function for RT-LAMP and swab-to-test (direct RT-LAMP with heat lysis) assays. The SLDM was validated in a clinical setting, highlighting the promise of VLPs as positive controls for molecular assays.
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http://dx.doi.org/10.1021/acs.biomac.0c01727 | DOI Listing |
Cancer Treat Res Commun
January 2025
Department of Biostatistics, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran.
Aim: Breast cancer is the second most common cancer among women and the leading cause of cancer-related mortality in this population. Numerous factors have been identified as either risk factors or protective factors for breast cancer. However, the role of Vitamin D (Vit.
View Article and Find Full Text PDFCancer Treat Res Commun
January 2025
North China University of Science and Technology, Tangshan 063210, China.
Purpose: To investigate the effects of compression therapy combined with exercise for cancer patients (EXCAP) in patients with peripheral neuropathy caused by breast cancer chemotherapy.
Methods: Overall, 108 patients with peripheral neuropathy after chemotherapy for breast cancer were randomly divided into the control group (routine nursing), experimental group 1 (compression therapy), and experimental group 2 (compression therapy and EXCAP). The National Institute of Cancer Drug Toxicity Rating Scale and the Chemotherapy-Induced Peripheral Neuropathy Assessment Tool were assessed and compared between groups.
Clin Orthop Relat Res
January 2025
Department of Rehabilitation Medicine, Brooke Army Medical Center, JBSA Fort Sam Houston, TX, USA.
Background: A number of efforts have been made to tailor behavioral healthcare treatments to the variable needs of patients with low back pain (LBP). The most common approach involves the STarT Back Screening Tool (SBST) to triage the need for psychologically informed care, which explores concerns about pain and addresses unhelpful beliefs, attitudes, and behaviors. Such beliefs that pain always signifies injury or tissue damage and that exercise should be avoided have been implied as psychosocial mediators of chronic pain and can impede recovery.
View Article and Find Full Text PDFJ Med Internet Res
January 2025
Department of Internal Medicine, Hospital Clinic, Institut d'Investigacio Biomèdica August Pi i Sunyer, Barcelona, Spain.
Background: Enhancing self-management in health care through digital tools is a promising strategy to empower patients with type 2 diabetes (T2D) to improve self-care.
Objective: This study evaluates whether the Greenhabit (mobile health [mHealth]) behavioral treatment enhances T2D outcomes compared with standard care.
Methods: A 12-week, parallel, single-blind randomized controlled trial was conducted with 123 participants (62/123, 50%, female; mean age 58.
Diabetes Care
February 2025
Division of Blood Disorders and Public Health Genomics, Centers for Disease Control and Prevention, Atlanta, GA.
Objective: The goal of this study was to assess the additive value of considering type 2 diabetes (T2D) polygenic risk score (PRS) in addition to family history for T2D prediction.
Research Design And Methods: Data were obtained from the All of Us (AoU) research database. First-degree T2D family history was self-reported on the personal family history health questionnaire.
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