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Research Journal of Life Science

rjls
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Published by Universitas Brawijaya

ISSN : - EISSN : 23559926 DOI : https://doi.org/10.21776/ub.rjls

Core Subject : Health, Science, Agriculture,

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Medicine & Pharmacology

Research Journal of Life Science (RJLS) is an open access publishes papers three times a year that emphasize the agriculture, fisheries, animal science, medicine, basic science and food technology. All articles are rigorously reviewed by reviewers. Articles should be created in a language that is easily understood by non-specialist readers in the topic of the article itself, but interested in research. The main objective of RJLS is to provide a platform for the international scholars, academicians and researchers to share the contemporary thoughts and innovations in the field of life science. RJLS aims to promote studies in life science and so become the leading international journals in life science in the world.This journal intends to provide facilities to advance the development and application of interdisciplinary and transdisciplinary research methodologies in life sciences.

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)

Articles 202 Documents

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Polymorphism of Growth Hormone Gene in Selecting Etawah Crossbred (PE) Goats Tri Eko Susilorini; Kuswati Kuswati; Sucik Maylinda
Research Journal of Life Science Vol 4, No 2 (2017)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

Although Etawah Crossbred (PE) goat is considered to be dual purpose (meat and milk) goat, it is mainly raised for meat production. Since early 1990, there has been a growing interest of the farmer in some places to raise PE goat for milk production without sacrificing its role to produce kids for meat. Although milk yield of PE goat was not as high as milk yield of some other dairy goats, the ability of PE goat to cope with harsh local environment, particularly climate and feed conditions, was an advantage. Therefore, raising PE goat would still be an important part of farmer activities in the rural areas in Indonesia. Identification of the genes underlying livestock production traits leads to more efficient breeding programs and it is a promising way to improve production traits of farm animals. Growth hormone is a polypeptide hormone which is the major regulator of the metabolic procedures of growth and development and it is encoded by GH gene. The objective of this study was to detect the genetic polymorphism of GH gene in major Etawah Crossbred (PE) goat using PCR-RFLP. The PCR amplified fragment were digested with HaeIII endonuclease and the result showed the presence of two genotype CC and CD. The total frequency were 47.0% and 53.0% for CC and CD genotype respectively in 94 tested goats. Statistical analysis showed that in the fragment amplified by the pair of primer, CD genotype had significant higher birth weight and weight of 100 days old (weaning weight) than CC genotype (P<0.01). In conclusion that GH gene may be a mayor gene or linked to the mayor gene to affect the weight traits and the polymorphic site could be used to select the goat weight in marker-assisted selection program.

Effect of Cinnamaldehyde Addition on Zebrafish (Danio rerio) Eggs Against Streptococcus agalactiae Infection Asthervina Widyastami Puspitasari; Diana Arfiati; Shao-Yang Hu
Research Journal of Life Science Vol 4, No 3 (2017)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

In this study, the effect of cinnamaldehyde (CA) towards Streptococcus agalactiae on zebrafish egg were investigated. To obtain the optimal concentration, CA and S. agalactiae were tested by short-term effects assay. Fresh zebrafish egg, CA and S. agalactiae were observed in different groups, single and mix treatment. The result showed that the larval survival rate (%) of single CA concentration (2.5 and 5 µg mL-1) were not significantly different compared to the control, with the value 94 ± 2.8% and 93 ± 3.3% respectively. Meanwhile, the single S. agalactiae concentration (109 and 1010 CFU mL-1) were significantly different in comparison to the control with the value 73 ± 2.1% and 6 ± 2.5%. Mix groups, larval survival rate (%) value were significantly different with the best combination value was 17 ± 4.7% at 5 µg mL-1 of CA and 109 CFU mL-1 of S. agalactiae. Even though CA may potential for zebrafish egg shelter against S. agalactiae infection. But a mixture (CA and S. agalactiae) treatments were not recommended for this study because the low value was shown compared to the single treatments. This possibility may occur because of the debris formation of two substances which leads to the poor environment and causes to low fish larval survival rate (%) value. For further study, the water quality assay is needed.

Nigella sativa Extract Increases Antibacterial Activity by Up-Regulating T-reg and Th2 Levels in Salmonella enterica subsp. enterica serovars Typhimurium-Exposed Balb/c Mice Zahra Ahmed; Sumarno Reto Prawiro; Agustina Tri Endharti
Research Journal of Life Science Vol 5, No 1 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

Nigella sativa extract (NSE) is known to be an effective antibacterial and immuno-modulating agent. This study aimed to demonstrate that treatment of Salmonella eterica subsp. eterica serovars typhimurium-infected mice with NSE would cause an increase in T-regulatory (T-reg) and Th2 cells and a decrease in the number of spleen bacterial colonies. Mice were randomly divided into five groups [control (T0), mice infected with S. typhimurium only (T1), and mice infected with S. typhimurium and then treated with NSE 0.52, 5.2, or 52 mg/kg body weight NSE (N1, N2, and N3, respectively)]. Levels of T-reg and Th2 cells were determined via flow cytometry and the number of spleen bacterial colonies was determined by observation. The results showed that treatment with NSE 0.52, 5.2, and 52 mg/kg significantly increased the number of T-reg and Th2 cells (p<0.05) relative to T0. Administration of NSE 5.2 mg/kg increased the number of T-reg cells, while administration of NSE 52 mg/kg caused the greatest increase in the number of Th2 cells in the spleens of S. typhimurium-infected mice. Moreover, no S. typhimurium colonies were found in the spleens of any NSE-treated mice. Our results suggest that NSE has therapeutic potential to ameliorate S. typhimurium infection.

Determination on Yellow Fin Tuna Stock (Thunnus albacares) In South Java Sea Based on Genetic Variation by Restriction Fragment Length Polymorphism (RFLP) Method Feni Iranawati; Lazimatun Nazifah; Ledhyane Ika Harlyan; Syarifah Hikmah Julinda Sari; Diana Arfiati
Research Journal of Life Science Vol 3, No 1 (2016)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

Indonesia is known as a country with the highest potential production of tuna, with total production more than six hundred thousand ton per year as value as 6.3 trillion IDR per year.However, Tuna fishery have several challenges, as can be identify by the declining in productivity and an average length fish had been caught, and also tuna fishing groundsaregetting farther. This apparently appears as a result of inaccurate determination of fish stock as the basic management unit of tuna fisheries, especially in yellow fin tuna (YFT). This study aims to define population stocks of YFTin South Java Sea based on genetic information. Samples were taken from three fish landing ports (MuaraBaru, Cilacap and Benoa). Restriction Fragment Length Polymorphism (RFLP) technique were applied for Cytochrome Oxidase I genes, using restriction enzymes;HaeIII, RsaI, BamHI, XhoI, and AluI. Genetic variation in populations were evaluated with POPGENE32 software. Result indicate that finer scale of stocks present YFT and should bemanaged differently for effective management purpose and to maintain sustainability of this species.

Lead (Pb) Accumulation in Water, Sediment and Mussels (Hiatula chinensis) from Pasir Panjang Coast, Lekok-Pasuruan Yona, Defri; Andira, Andira; Sari, Syarifah Hikmah Julinda
Research Journal of Life Science Vol 3, No 1 (2016)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

This study attempted to evaluate Pb accumulation in the water, sediment and mussels (Hiatula chinensis) from Lekok-Pasuruan. There were four sampling stations representing the study area: (1) urban areas, (2) water flow area from steam power plant (PLTU), (3) waste disposal area of PLTU, (4) fishing port. The average concentration of lead varied between stations in the water (0.279 ppm), sediment (0.423 ppm) and mussels (0.427 ppm). Pearson`s correlation test shows strong relationship (p > 0.05) between Pb in the water, sediment and Hiatula chinensis. Mussels accumulation of lead from the sediment was assessed using bio-concentration factor (BCF) and the result shows Hiatula chinensis is an accumulator of Pb (BCF > 1).

Chicken Feather Silage Meal As A Fish Meal Protein Source Replacement In Feed Formula Of Pomfret (Colossoma macropomum) Arning Wilujeng Ekawati; Ating Yuniarti; Marsoedi Marsoedi
Research Journal of Life Science Vol 3, No 2 (2016)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

The research was conducted to know the effect and to determine the best utilization of the chiken feather silage meal as a substitute for fish meal protein source in the feed formula of Colossoma macropomum. This study used experimental method based on Completely Randomized Design (CRD) with 5 treatments and 3 replications. Five diets (33% isoprotein and 3.85 kcal/g diet isoenergi) were formulated with substitution of the chiken feather silage meal to fishmeal protein. These substituted 0, 25, 50, 75 and 100 % (A, B, C, D and E respectively) of the fishmeal protein. Parameters observed and analyzed were: survival rate, specific growth rate, feed conversion ratio, protein efficiency ratio, protein retention and protein digestibility. The results showed that the treatment had no effect on survival rate, specific growth rate, feed conversion ratio, protein efficiency ratio, and protein retention but the effect on protein digestibility. Based on these results, it can be concluded that fishmeal protein can be substituted with the chiken feather silage meal up to 100% in the feed formula of Colossoma macropomum.

Ketamine Improves Sepsis-induced Immunosuppression by Attenuating Intracellular Calcium Elevation in Rat Peripheral Mononuclear Cells Puspita Abidatul Qodariyah; Afiyf Kaysa Waafi; Christian Julio Suhardi; Karina Survival Rofiq; Aswoco Andyk Asmoro; Edi Widjajanto
Research Journal of Life Science Vol 5, No 1 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

Immune response in sepsis divided into two phases, hyper-inflammation (cytokine storm) and hypo-inflammation (immunosuppression). The mechanism of immunosuppression appears to involve apoptosis of immune cells, particularly mononuclear cells and it predisposes to secondary infection that is believed as the predominant driving force for mortality. We aimed to determine the effect of ketamine on mononuclear cells count related to intracellular calcium contained within these cells during the immunosuppression phase of sepsis.This in vivo study was performed in Rattus Novergicus with Fecal Induced Perionitis (FIP) procedure to induce polymicrobial sepsis. Rats were treated with each respective dose of ketamine (2.5, 5, and 10 mg/kg) 1 hour after sepsis induction. Murine Sepsis Score was measured at 1 and 24 hours post-FIP. After 24 hours, animals were sacrificed, and the percentage of intracellular calcium inside CD4, and CD8 T cells, B cells and monocytes, along with these cells counts were determined with flowcytometry. There are significant elevation of intracellular calcium in CD4 T-cells, B-cells and monocytes after FIP-induction and ketamine treatment suppressed this FIP-induced elevation. Measurement of mononuclear cells count showed a relevant result, in which FIP induced mononuclear cells massive loss and ketamine could inhibit the loss. MSS data showed ketamine 5 mg/kg could improve 24 hours MSS with 100% survivability.These findings suggest that ketamine have an inhibitory effect in mononuclear-cells apoptosis mechanism through attenuating intracellular calcium elevation in polymicrobial sepsis. These inhibitory effects of ketamine might correlate with a better survival and clinical outcome.

The Combination of Acupressure and Affirmation Relaxation as an Alternative Method to Increase Breast Milk Production and Breastfeeding Self-efficacy Dita Rahmaika Arumsari; I Wayan Agung Indrawan; Endang Sri Wahyuni
Research Journal of Life Science Vol 5, No 1 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

Breastfeeding has been normative prevailing standard for feeding and fulfilling nutrition for baby due to its important benefit for mothers and her infant. The most common problem in breastfeeding is lack supply of breast milk after giving birth. The aim of this research was to prove that combination of acupressure and affirmation relaxation method was able to increase breast milk and improve breastfeeding self-efficacy of primiparous mothers in the postpartum period. The study design was true experimental with pre-test and post-test design. There were 24 primiparous mothers who were divided into two groups. Weighing test was used to measure breast milk production and breastfeeding self-efficacy was measured using Indonesian version of Breastfeeding Self-Efficacy Scale. Data were analyzed using Unpaired t-test and Mann Whitney test (α = 0.05). Based on the finding, we could conclude that combination of acupressure and affirmation relaxations could improve breast milk production (p = 0.033) and breastfeeding self-efficacy (p = 0.045) for primiparous mother in the postpartum period encountered in several Independent Midwifery Practice in Malang. This method might be used as a non-pharmacological treatment for postpartum mothers. Health practitioners should disseminate this technique so that postpartum mothers can do that by themselves.

Effect of Endurance Treadmill Training on mIGF-1 Expression and PAX 7 Satellite Cell in Rat Muscle Tissues Mustofa Mustofa; Karyono Mintaroem; Agustina Endharti
Research Journal of Life Science Vol 5, No 2 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

This study examined the effects of endurance exercise training on muscle Insulin Growth Factor-1 (mIGF-1) and PAX7 transcription factor of satellite cell activation in a tibialis anterior muscle of rat. Rat were subjected to treadmill, divided into three groups, each containing 6 rats. Groups of high, moderate and low doses of exercise received 28, 17 and 12 m/s of treadmill speeds respectively. Treadmill exercise training conducted in 5 days a week within 9 weeks. At the end of 9 weeks of the experiment, rat were sacrificed, tibialis anterior muscle tissues was removed and then subjected to immunohistochemistry examination. There were significant differences in intensity of training in mIGF-1 and PAX7 in muscle tissues (P < 0.05). These results suggested that endurance exercise training which high, moderate and low intensity able to increase mIGF-1 and PAX7 that associates with satellite cell development of muscle tissues.

Turmeric (Curcuma longa) Decoctum Had no Effect on Vascular Endothelial Growth Factor (VEGF) and Vascular Endothelial Cadherin (VE-cadherin) Expression in the Chick Embryo Sri Winarsih; I Wayan Arsana Wiyasa; Sri Andarini; Sumarno Reto Prawiro
Research Journal of Life Science Vol 5, No 2 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

Turmeric (Curcuma longa) as a medicinal plant has widely consumed by pregnant women. The absence of dose standardization and the regulation of turmeric consumption in pregnancy raise concerns, especially if taken in early pregnancy. Angiogenesis is the process of new blood vessel formation from previously existing blood vessels, and plays an important role in embryogenesis and placentation during pregnancy. Angiogenesis is regulated by angiogenic molecules, such as VEGF and VE-cadherin. Turmeric has antiangiogenic effects in which the crude extract is pharmacologically more potent compared to the pure curcumin form. This study aimed to determine whether a turmeric decoctum affects the expression of VEGF and VE-cadherin in chick embryos. Turmeric was extracted by the decoction and freeze dried methods to obtain turmeric decoctum powder. This was tested on embryonated chicken eggs, which were divided into four groups; control group (2% DMSO) and treatment groups receiving various doses of the turmeric decoctum (200 ppm, 300 ppm and 400 ppm). The eggs used were less than 7 days after oviposition and incubated for 16 hours prior to injection of the treatment solution in ovo to the center of the yolk, followed by reincubation for up to 48 hours. Intraembryonic VEGF and VE-cadherin expression were assessed by whole-mount immunohistochemistry and quantified using image analysis techniques. This study showed administration of turmeric decoctum up to 400 ppm had no effect on the expression of VEGF and VE-cadherin in chick embryos.

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Editorial Address Directorate of Research and Community Service, Gedung Layanan Bersama, 7th Floor, Jl. Veteran Malang, Universitas Brawijaya, 65145, Jawa Timur, Indonesia

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Contact Name
Kuswanto

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rjls@ub.ac.id

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+62341 575825

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rjls@ub.ac.id

Editorial Address
Directorate of Research and Community Service, Gedung Layanan Bersama, 7th Floor, Jl. Veteran Malang, Universitas Brawijaya, 65145, Jawa Timur, Indonesia

Location
Kota malang,

Jawa timur

INDONESIA