Coronavirus disease (COVID-19) caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) was first reported in the city of Wuhan, China at the end of December 2019. In the case of SARS-CoV-2, antibody-mediated immunity and T cells are the most effective protection. This study aimed to analyze IFN-γ profile in people who were vaccinated and unvaccinated against COVID-19. This research was conducted at the Molecular Laboratory of the Professor Nidom Foundation (LM-PNF), Surabaya, Indonesia from February 2021 to March 2022 using 100 blood samples with details of 50 samples from people who had been vaccinated against COVID-19 and 50 samples from people who had unvaccinated against COVID-19. We divided into four: vaccination only, vaccination and had infected of COVID-19 or survivors, unvaccination only, and unvaccination but survivors. Furthermore, we used the ELISpot method to see the IFN-γ profile. The data analysed by using ANOVA. The results of this study showed that IFN-γ profile vary widely with the highest IFN-γ obtained in samples of people who are vaccinated and had infected of COVID-19 compared to other groups. In summary, we conclude that the cellular immune response (IFN-γ) profile in people who vaccinated and had infected of COVID-19 was better than unvaccinated.

This study aimed to determine the effect of taurine on the enhancement of the spermatogenetic process in male mice (Mus musculus) induced by paraquat (PQ). Twenty-five male mice (Mus musculus) aged 2-3 months with a bodyweight of around 35 grams were divided randomly into five groups. The K + and the treatment group (P1, P2, and P3) mice were induced using PQ. PQ was given intraperitoneally (IP) twice a week for 21 consecutive days at a dose of 30 mg/kg BW. Two hours after the administration of PQ, P1, P2, and P3 groups were given taurine at a dose of 250, 500, and 1000 mg/kg BW/day for three weeks (Heidari et al., 2019). K- group was given distilled water (IP) only. On day-29, mice were sacrificed for testicles histopathological preparations with hematoxylin-eosin staining. Results showed that the mice exposed to PQ only (the K+ group) had a reduced spermatogenesis score compared to those of the K- group (p <0.05).  Taurine treatment on PQ-exposed mice was followed by an increase spermatogenesis score. The optimal curative dose of taurine was 500 mg/kg (P2 group). However, a higher dose (1000 mg/kg BW) of taurine resulted in a decline in the spermatogenesis score than those of at the 500 mg/kg. It could be concluded that treatment with taurine could enhance the spermatogenetic process of male mice (Mus musculus) induced by PQ.

Background and Aim: Pullorum is an acute and chronic disease caused by Salmonella pullorum, often infecting chicken farms. Pullorum disease treatment using antibiotics that do not follow the control dose can cause bacteria to become antibiotic-resistant. Meniran contributes to inhibiting and antagonizing bacteria and can increase the efficiency of chicken feed because of its bioactive compounds, including alkaloids, flavonoids, tannins, and saponins. This study aimed to determine the activity of Meniran extract (Phyllanthus niruri Linn.) in broilers infected with S. pullorum. Materials and Methods: In vitro study that was conducted includes phytochemical test, diffusion, and dilution methods using Meniran extract at 5%, 10%, 20%, and 40% concentrations and tylosin at 2% concentration. The data of the dilution method (minimum inhibitory concentration [MIC] and minimum bactericidal concentration [MBC]) were processed using probit analysis to determine LC50. In vivo study was conducted by randomly dividing 20 broilers into five treatment groups, four per group. The chickens (except in group P0–) were infected with S. pullorum aged 14 days. Then, the treatment was conducted according to the divided groups when the chickens were aged 21-34 days. The said treatments are P0– (uninfected S. pullorum and unadministered with Meniran extract), P0+ (infected with S. pullorum and unadministered with Meniran extract), and P1, P2, and P3 (infected with S. pullorum and administered with Meniran extract with 5%, 10%, and 20% concentrations, respectively). Data from the phytochemical test were analyzed as descriptive. The data from the diffusion method were analyzed using one-way analysis of variance (ANOVA) and Duncan's test. Then, the results of broilers' performance were analyzed using ANOVA and Duncan's test. Results: The phytochemical test showed positive for alkaloid, tannin, saponin, flavonoid, and steroid/triterpenoid. The diffusion method formed the largest zone at 40% concentration with 15.6 mm, while 20%, 10%, and 5% had average of 13.15 mm, 8.38 mm, and 5.8 mm, respectively. The dilution method (MIC and MBC) exhibited the antibacterial ability of Meniran extract against S. pullorum at 20% dose and LC50 14.118% concentration. The Meniran extract administration in broilers exhibited improved performance of chickens infected with S. pullorum, with the administration of 20% dose of Meniran extract showing the best result. Conclusion: About 20% concentration Meniran extract can serve as an antibacterial agent and showed the best results in broilers infected with S. pullorum.

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This study investigated the preventive effect of virgin coconut oil (VCO) on the epithelium thickness and the diameter of the seminiferous tubules induced by ethanol in mice (Mus musculus). This study used 20 male mice as the experimental animal which were divided into five groups with four mice in each group. Negative control (C-) was given 2% Tween and aquadest, while positive control (C+) was given 2% Tween and 33% ethanol. T1, T2, and T3 were respectively given 0.09, 0.19, and 0.37 mL/kg bw VCO and 33% ethanol (0.2 mL/kg bw). VCO was given orally for 39 days, and ethanol was given orally seven days later for 32 days. Ethanol was administered two hours after the VCO administration. Analysis of variance followed by Tukey’s range test on the epithelium thickness and the diameter of the seminiferous tubules showed significant differences (p <0.05) of C+ group from the other groups. Whereas, there was no significant difference (p >0.05) was found among C-, T1, T2 and T3 group. The result concluded that VCO could protect the testis of mice from the damage caused by ethanol.