Seroconversion and dynamics of IgG anti-SARS-CoV-2 antibodies during the pandemic: A two-month observation cohort study on the population of Sleman in Indonesia.

Background: This study describes the seroconversion and serodynamics of IgG antibodies against the RBD of SARS-CoV-2 in the general population of Sleman District, Yogyakarta Special Province. We aim to identify possible factors that correlate with the seroconversion and serodynamics of IgG antibodies against the RBD of SARS-CoV-2.

Methods: We performed a longitudinal study of the population at Health and Demographic Surveillance System (HDSS) Sleman, Yogyakarta, Indonesia.

Modification of cryoprotectants on sperm cryopreservation: A study of embryo development.

Objective: This research was conducted to analyze the effect of cryopreservation of sperm using modified cryoprotectants on embryo development through fertilization (IVF). In this research, three types of cryoprotectant combinations were compared, including Nakagata, modified cryoprotectant, and commercial (Kitazato).

Materials And Methods: Several parameters, namely sperm concentration, motility, morphology, plasma membrane integrity, cryo-survival rate, and viability rate, were measured and compared before vitrification and warming.

Profiling of secondary metabolites produced by Pseudomonas sp. isolate PY-122 and PY-142 as biocontrol agent againts fusarium wilt disease on chili.

Fusarium wilt is an important disease on chili plants caused by the fungus Fusarium oxysporum. This study aims to determine the effectiveness of secondary metabolites from 2 Pseudomonad isolates in controlling Fusarium wilt in chili plants and their effect on chili plant growth. This research was conducted in two stages, namely in vitro, which was carried out in the plant health laboratory and greenhouse, Faculty of Agriculture, Universitas Pembangunan Nasional Veteran Jawa Timur, and in vivo which was carried out in chili plantations known to be endemic to Fusarium wilt in Menganti, Gresik.

Mesenchymal stem cell secretome: A promising therapeutic strategy for erectile dysfunction?

Objective: The secretome, comprising bioactive chemicals released by mesenchymal stem cells (MSCs), holds therapeutic promise in regenerative medicine. This review aimed to explore the therapeutic potential of the MSC secretome in regenerative urology, particularly for treating erectile dysfunction (ED), and to provide an overview of preclinical and clinical research on MSCs in ED treatment and subsequently to highlight the rationales, mechanisms, preclinical investigations, and therapeutic potential of the MSC secretome in this context.

Methods: The review incorporated an analysis of preclinical and clinical research involving MSCs in the treatment of ED.

Fractional exhaled nitric oxide (FeNO) among school children in Java and Sumatra, Indonesia: associations with respiratory symptoms, house dust mite sensitization and the home environment.

Objective: To study associations between fractional exhaled nitric oxide (FeNO) and asthma, airway symptoms, sensitization to common allergens, outdoor pollution and home environment among 380 students in eight junior high schools in two areas in Indonesia.

Methods: Data on health and home were collected by a face-to face interview before measuring FeNO and performing skin prick test against common allergens. Exploratory linear mixed and logistic regression models were employed.