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All Journal Global Medical and Health Communication
Watanabe, Kozo
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Dentistry Health Professions Immunology & microbiology Nursing Public Health

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Arbovirus Detection of Adult Female Aedes aegypti for Dengue Surveillance: a Cohort Study in Bandung City, Indonesia Faridah, Lia; Ekawardhani, Savira; Fauziah, Nisa; Djati, Imam Damar; Putra, Ramadhani Eka; Watanabe, Kozo
Global Medical & Health Communication (GMHC) Vol 11, No 3 (2023)
Publisher : Universitas Islam Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/gmhc.v11i3.12749

Abstract

Dengue surveillance is an important activity to prevent dengue outbreaks. This activity becomes a significant challenge for the region with limited logistic capabilities. Developing a simple mathematical model to predict the possibility of dengue incidence provides a reliable early warning system. This study compared the correlation between vector (adult female Aedes aegypti) and arbovirus detection on a vector to dengue incidence, which generalized linear mixed models tested. The incidence of adult female Aedes aegypti and dengue fever cases were interpolated through third-power inverse distance weighting (IDW). A spatial correlation between female Aedes aegypti incidence and dengue incidence was obtained from polynomial regression. Collection sites were 16 villages in Bandung city, one of the significant dengue endemic areas in January–December 2017. A total of 8,402 mosquitoes of Aedes aegypti, Aedes albopictus, and Culex sp., with 17% belonging to Aedes aegypti as the subject of the dengue virus (DENV) infection test. Data analysis only showed a weak correlation between the numbers of adult female Aedes aegypti and dengue incidence. On the other hand, there is no correlation between positive dengue infection of vector and dengue incidence. This study highlights the importance of constant arbovirus surveillance and integrated surveillance methods on all possible dengue vectors to develop an early warning system for dengue incidence.
Promotion of Crypt-like Structures in Intestinal Organoid Development through the Addition of Graphene Oxide in Cell-based Assays Sulaksono, Haura Labibah Salsabil; Kamilah, Mutiara Mila; Faridah, Lia; Joni, I Made; Watanabe, Kozo; Ekawardhani, Savira
Global Medical & Health Communication (GMHC) Vol 12, No 3 (2024)
Publisher : Universitas Islam Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/gmhc.v12i3.13386

Abstract

The intestinal organoid represents a miniature organ that can mimic functional physiology and pathology. However, there are several challenges to developing the organoid system, such as the limited survival of cells. Based on theory, matrix addition is a factor that can support survival in cells. As a result, graphene oxide (GO) addition is used in this study. As an artificial matrix, GO has been successfully shown to encourage good cell behavior and is well known for having good biocompatibility. Herein, we fabricate GO characterized with FT-IR and PSA. Crypt-like structures (CLS) are isolated from small intestinal mice in GO addition as a matrix. The gene expression and cell viability of CLS are investigated. RT-PCR examined the gene expression in CLS, while cell viability of CLS was carried out using the staining method. This study was conducted at FiNder U-CoE and Parasitology Laboratory of HSE Universitas Padjadjaran Bandung during February and December 2023. Our results show that Vil-1 as an identity for cells in the intestinal epithelium has been expressed in CLS primary significantly higher than intestinal tissue (p=0.01). However, identifying Lgr5 in CSL isolates is tricky. Thes in the crypt may be limited. Besides that, cell viability of CLS with GO addition can be maintained for four days. The GO addition as a matrix may provide support to maintain CLS. These findings are promising as cell-based assays for developing organoid models.
Co-Authors Djati, Imam Damar Fauziah, Nisa I Made Joni Kamilah, Mutiara Mila Lia Faridah Ramadhani Eka Putra Savira Ekawardhani Sulaksono, Haura Labibah Salsabil