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The Journal of Experimental Life Sciences (JELS)
Published by Universitas Brawijaya
ISSN : 20872852     EISSN : 23381655     DOI : 10.21776/ub.jels
Core Subject : Health, Science,
Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Neuroscience
The Journal of Experimental Life Science (JELS) is a scientific journal published by Postgraduate School, University of Brawijaya as distribution media of Indonesian researcher’s results in life science to the wider community. JELS is published in every four months. JELS published scientific papers in review, short report, and articles in Life Sciences especially biology, biotechnology, nanobiology, molecular biology, botany, microbiology, genetics, neuroscience, pharmacology, toxicology, and Applied Life Science including fermentation technology, food science, immunotherapy, proteomics and other fields related to life matter. JELS is a scientific journal that published compatible qualified articles to the academic standard, scientific and all articles reviewed by the expert in their field. The Journal of Experimental Life Science (JELS) have a vision to become qualified reference media to publish the best and original research results and become the foundation of science development through invention and innovation on cellular, molecular, nanobiology, and simulation work related to life matter rapidly to the community. The Journal of Experimental Life Science (JELS) has objectives to published qualified articles on research’s results of Indonesian researchers in life science scope. JELS encompasses articles which discuss basic principles on natural phenomenon with cellular, molecular, and nanobiology approach.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 259 Documents
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Analisis Titer Antibodi Bovine Zona Pellusida 3 (Anti-bZP3) Hasil Induksi Bovine Zona Pellusida 3 (bZP3) pada Kera (Macaca fascicularis) Maris Kurniawati; Sutiman Bambang Sumitro; Aulanni'am Aulanni'am
The Journal of Experimental Life Science Vol. 2 No. 1 (2012)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1078.063 KB) | DOI: 10.21776/ub.jels.2012.002.01.08

Abstract

Zona pellusida 3 merupakan molekul glikoprotein yang berfungsi sebagai reseptor primer spermatozoa dalam proses fertilisasi. Bovine zona pellusida 3 (bZP3) dapat dikembangkan sebagai target antigen untuk vaksin imunokontrasepsi. Efektivitas kerja antibodi sangat dipengaruhi oleh titer antibodi. Tujuan dilakukan  penelitian ini adalah mengetahui profil titer antibodi bovine zona pellusida 3 (anti-bZP3) hasil induksi bovine zona pellusida 3 (bZP3) pada kera (Macaca fascicularis). Imunisasi bZP3 pada kera (Macaca fascicularis) dilakukan secara sub kutan (SC) menggunakan CFA (Complete Freund's Adjuvant) untuk imunisasi pertama dan IFA (Incomplete Freund's Adjuvant) untuk imunisasi booster 1 dan booster 2. Serum dipanen sebanyak 4 kali setelah booster 1 dan 2. Hasil analisa menunjukkan berat molekul anti-bZP3 dari kera adalah 160 kDa. Titer naik mulai minggu ketiga hingga kelima dan turun lagi setelah minggu keenam setelah imunisasi pertama (minggu pertama hingga keempat pasca booster pertama) dan titer naik kembali pada minggu ke tujuh hingga kesembilan serta turun pada minggu ke sepuluh setelah imunisasi pertama (minggu pertama hingga ke empat pasca booster kedua). Titer antibodi tertinggi dicapai pada minggu kesembilan pasca imunisasi pertama atau minggu ketiga pasca booster kedua. Kata kunci: bZP3, imunokontrasepsi, Macaca fascicularis, zona pellusida  
Optimal Control on Model of SARS Disease Spread with Vaccination and Treatment Ririt Andria Sari; Ummu Habibah; Agus Widodo
The Journal of Experimental Life Science Vol. 7 No. 2 (2017)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1178.252 KB) | DOI: 10.21776/ub.jels.2017.007.02.01

Abstract

The spread of SARS (Severe Acute Respiratory Syndrome) disease in a human population is one of the phenomena that can be mathematically modeled. The exposed period of SARS disease underlies the formation of the SVEIR epidemic model which is a modification of the SVIR epidemic model by adding subpopulation E (exposed). In the SVEIR model, there are two control variables in the form of vaccination and treatment which aimed to minimize exposed subpopulation, infected subpopulation, and control implementation cost. The Pontryagin’s minimum principle is used to obtain optimal control and system, thus minimizing objective functional as the objective to be achieved. Furthermore, the forward-backward sweep method is used for numerical simulation in order to determine the most appropriate control strategy in a finite time. The simulation results show that implementation of both vaccination and treatment is the most effective decision making to control the spread of SARS disease.Keywords: optimal control, Pontryagin’s minimum principle, SARS.
Alcohol Intake Investigation of Adult Rats Based on Sperm Parameters Choirul Anam; Agung Pramana Warih Marhendra; Sri Rahayu
The Journal of Experimental Life Science Vol. 9 No. 2 (2019)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (925.986 KB) | DOI: 10.21776/ub.jels.2019.009.02.11

Abstract

The prevalence of alcohol consumption is high among adult males during the reproductive period. The current study aimed to evaluate the impact of chronic administration ethanol on the quality of sperm in the rats. Twelve healthy Wistar male albino rats were randomly divided into 2 groups to represent the 2 phase duration. The first phase lasted 21 days and the second phase lasted 49 days. In each phase, the animals were separated into subgroups: A and B. Subgroup A represented control that received distilled water while subgroup B represented animals that received 7 mL.kgBW-1 of 30% ethanol per day, thrice a week. The data were analyzed using ANOVA (P<0.05). There is no significant difference in sperm concentration and viability. However, there is a significant difference in the motility of spermatozoa between the control group and ethanol-treated group. Thus, the study indicates that ethanol administration may disturb the sperm motility and have no clear effect on its concentration and viability.Keywords: alcohol consumption, reproductive function, sperm quality.
Pengaruh Outer Membrane Protein Helicobacter Pylori terhadap Perubahan Histopatologi Mukosa Lambung dan S-IgA pada Mus musculus Outbred Balb/C Yuniati Yuniati; Harijono Achmad; Sumarno Sumarno
The Journal of Experimental Life Science Vol. 1 No. 1 (2011)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (997.84 KB) | DOI: 10.21776/ub.jels.2011.001.01.04

Abstract

Helicobacter pylori (H. pylori) merupakan bakteri penyebab inflamasi mukosa lambung. Faktor virulensi bakteri berperan pada patogenesis penyakit infeksi oleh bakteri yang pada umumnya dapat merangsang sistem imun. Secara umum antigen yang merupakan faktor virulensi ini terdapat dalam Outer Membrane protein (OMP). Pemberian antigen secara per oral mampu menginduksi respon imun mukosal dengan cara membentuk Secretory IgA (S-IgA). Penelitian ini bertujuan untuk mengetahui pengaruh OMP H. pylori terhadap histopatologi mukosa lambung Mus musculus Outbred Balb/C dan peningkatan konsentrasi S-IgA pada Mus musculus Outbred Balb/C. Metode Penelitian yang digunakan adalah Post-test only kontrol group design. Bakteri H. pylori dikultur kemudian dilakukan isolasi OMP dengan menggunakan bahan n-Octyl-ß-D-Glucopyranoside (NOG) 0,5% melalui isolasi bertahap dan dilakukan SDS-PAGE. Setelah itu dilakukan coupling dengan CTB dan diberikan ke mencit secara intragastrik dengan dosis 100 μgml-1 setiap minggu. Pada akhir minggu ke-2, ke-4, ke-6 dan ke-8 dilakukan pemeriksaan histopatologis dan kadar S-IgA. Hasil penelitian menunjukkan terdapat perbedaan yang signifikan (p<0,05) pada perhitungan jumlah sel polimorfonuklear (PMN), jumlah sel Mononuklear (MN) dan kadar S-IgA antara kelompok kontrol dan perlakuan. Berdasarkan hasil penelitian dapat disimpulkan bahwa OMP H. pylori dapat menyebabkan kerusakan mukosa lambung menginduksi S-IgA Mus musculus Outbred Balb/C. Kata Kunci : Helicobacter pylori, n-Octyl- ß-D-Glucopyranoside, outer membrane protein (OMP)
Estrous Cycle Response in Mice (Mus musculus) with CSE (Crude Sperm Extract) Injected Intraperitoneally Enni Mutiati; Sri Rahayu; Gatot Ciptadi; Moch. Nasich
The Journal of Experimental Life Science Vol. 6 No. 1 (2016)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (976.426 KB) | DOI: 10.21776/ub.jels.2016.006.01.03

Abstract

Sperm protein has an important role in fertilization process. It becomes antigenic when it is injected to body and can increase TNF-α secretion. TNF-α in blood vesssel can inhibit estradiol synthesis. Estradiol has a significant role in repduction cycle, especially in estrous cycle. The study aims to understand the influence of Crude Sperm Extract (CSE) to mice (Mus musculus) estrous cycle. 16 fertile mices strain Balb-C aged 3-4 months, weighed 20-30 g was divided into 4 groups. P0 is a control group injected by PBS, group P1, P2, and P3 injected by CSE with 1.5 mg.ml-1, 2 mg.ml-1, and 2.5 mg.ml-1. CSE is injected intraperitoneally during mice's  diestrus phase. CSE is injected in day 0, day 12, day 24 and observed daily. The data are descriptively analyzed. The results show that CSE with molecule weight between 26.8-176.8 kDa influences estrous cycle. Keywords: Crude Sperm Extract, estrous cycle, folliculogenesis, Mus musculus
The Effect of Morinda citrifolia L. Fruit Extract Supplemented in to Diluent Tris-Egg Yolk Toward the Abnormality of Goat's Spermatozoa after Freezing at -80°C Apriani Herni Rophi; Sri Rahayu; Gatot Ciptadi
The Journal of Experimental Life Science Vol. 8 No. 3 (2018)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1116.681 KB) | DOI: 10.21776/ub.jels.2018.008.03.03

Abstract

The aim of this research is to know the effect of diluent Tris-egg yolk medium added with Morinda citrifolia L. extract towards the sperms abnormality after storage at -80°C for 24 hours. The extracts added in diluent Tris-egg yolk medium were 0% (P0), 10% (P1), 20% (P2), and 30% (P3). The result showed that the percentage of sperms abnormality in P0, P1, P2, and P3 were respectively 8.67%, 6.67%, 5.67%, and 10%. P2 was the lowest percentage, while P3 was the highest percentage of sperms abnormality. In addition, this research found twelve kinds of sperms abnormality divided into categories: major abnormality included the broke tail, absent head, detached head, dag defect, tapered head, proximal droplet, round head and abaxial; and minor abnormality included the coiled tail, shoe hook tail, bent tail, and distal droplet. It has been concluded that the allotment of 20% Morinda citrifolia L. extracts in Tris-egg yolk medium able to maintain the sperm morphology at -80°C storage for 24 hours. Keywords: goat, Morinda citrifolia L., post-thawing, spermatozoa.
Aktivitas Antibakteri Ekstrak Teripang Holothuria sp. Terhadap Bakteri Aeromonas hydrophila Secara In vitro Siti Roihanah; Sukoso Sukoso; S. Handayani
The Journal of Experimental Life Science Vol. 3 No. 1 (2013)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2013.003.01.08

Abstract

Banyak penyakit yang disebabkan oleh patogenitas bakteri, sebagai contoh adalah bakteri Aeromonas hydrophila. Salah satu alternatif yang dapat dilakukan untuk mengatasi masalah tersebut adalah dengan menggunakan Teripang (Holothuria sp.) yang memiliki kandungan bioaktif sebagai bahan antibakteri. Tujuan penelitian ini adalah untuk mengetahui aktivitas antibakteri ekstrak Teripang terhadap A. hydrophila, mempelajari karakter dan struktur bakteri yang dihambat oleh ekstrak bioaktif Teripang dan mempelajari komponen bioaktif yang terkandung dalam teripang. Hasil uji cakram menunjukkan rerata zona hambat sebesar 13.188 mm sedangkan hasil uji MIC dan MBC menunjukkan bahwa pada dosis 0,50 mg.ml-1 mampu menghambat pertumbuhan bakteri (Bakteriostatik) dan dosis 0,55 mg.ml-1 telah dapat membunuh bakteri (Bakterisidal). Ekstrak kasar Teripang berpengaruh terhadap karakter dan struktur bakteri  A. hydrophila yaitu dengan merusak dinding sel dan membran sel bakteri. Hasil analisis Spektofometri Infra Merah dari eksktrak Teripang dan analisis Spektrofotometri Ultra Violet dengan pelarut n-heksan serapan diduga mengandung senyawa Triterpenoid. Kata kunci: Aktivitas Antibakteri, Teripang (Holothuria sp.), Aeromonas hydrophila
Phylogenetics and Biogeography of Cobra (Squamata: Naja) in Java, Sumatra, and Other Asian Region Nia Kurniawan; Mulyadiane M. Putri; Ahmad M. Kadafi; Dea J. Chrestella; Muhammad A. Fauzi; Agung S. Kurnianto
The Journal of Experimental Life Science Vol. 7 No. 2 (2017)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1441.886 KB) | DOI: 10.21776/ub.jels.2017.007.02.06

Abstract

The separation of Sumatra and Java occurred at the end of the Miocene (10 mya) to the end of Pliocene (1.8 mya). The existence of ecological variations and geographic barriers inhibits gene flow through the isolation of adaptation, geography, reproduction, inbreeding, and leading to population segregation. Cobra (genus Naja) distribution became greatly influenced by the geologic condition and sea level. This study was conducted by phylogenetic analysis towards the 16S rRNA gene. Survey was done with Visual Encounter Survey (VES) method on 6 localities. There were 3 locations in Sumatra Island and the others in Java Island. Sample from other Asian region was obtained from Genbank, which are 11 individuals from China, Thailand, and Nepal. DNA extraction was done according to the QIAmp® DNA Mini Kit standard protocol. The forward and reverse 16S sequences are combined with the SequencherTM version 4.1.4 program, then in BLAST (Blast Local Alignment Search Tool) at www.ncbi.nlm.nih.gov.  Phylogenetic analyzes of clade A (MP = 60, ML = 54, BI = 88) indicate the presence of division into two monophyletic subclade (AI and AII). Subclade AI consists of groups of Cobra  from Sunda (Thailand, Sumatra and Java). Subclade AII is a group of species N. kaouthia originating from Chumpon Province, Southern Thailand with (MP = 96, ML = 95, BI = 100). Clade B is divided into two subclasses (BI and BII). The result is supported by bootstrap value MP = 93, ML = 99, BI = 100. N. atra of Fujian Province is a sister lineage of the same species from Jiangxi Province (MP = 86, ML = 86, BI = 100).Keywords: Asian, 16s rRNA, Java, Cobra, Sumatra.
The Potential Microbe Agent to Degrade Naphtalene and Phenanthrene in Dumai Oil Sludge : A Growth Response Test Alfi Rizca Hardianti; Dita Widiyanti Sawitri; Helga Lusiana
The Journal of Experimental Life Science Vol. 9 No. 3 (2019)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (971.406 KB) | DOI: 10.21776/ub.jels.2019.009.03.07

Abstract

This study aims to find the most appropriate indigenous bacteria as Naphthalene and Phenanthrene degrading agents carried out in the growth response test. This research is very important to find the best bacterial agent, which in the future can reduce the impacts of oil pollution, as well as from the presence of oil sludgeBacterial cultures added in the media as much as 5% (v / v), which had previously been measured OD660nm = 0.5. The growth response test was carried out by growing 20 mL of bacteria in AMS media which was added with PAH substrate, naphthalene or Phenanthrene in various concentrations: 200 ppm, 500 ppm, 800 ppm, and 1000 ppm. In the naphthalene substrate with 24-hour incubation, the best treatment was in isolates A with a concentration of 200 ppm. In the phenanthrene substrate 24 hours incubation, the best treatment was in isolate A at 200 ppm, and at 48 hours incubation. Bacterial isolates F in 24-hour incubation increased growth in all treatments and controls. The bacterial E isolate on the phenanthrene substrate at 24-hour incubation has increased growth, which occurs until the incubation time is 48 hours, both in the control and phenanthrene substrate. E Isolate is tolerant of increasing substrate concentrations up to 1000 ppm, both naphthalene and phenanthrene and has the best growth ability. It can be concluded that isolate E has the best growth ability and is tolerant of increasing substrate concentrations up to 1000 ppm. E isolates were designated as the best isolates of naphthalene and phenanthrene degradation.Keywords: Dumai, Growth Response, Naphthalene, Phenanthrene
Penurunan Motilitas dan Daya Fertilitas Sperma Ikan Lele Dumbo (Clarias spp) Pasca Perlakuan Stress Kejutan Listrik Abdul Rahem Faqih
The Journal of Experimental Life Science Vol. 1 No. 2 (2011)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1242.28 KB) | DOI: 10.21776/ub.jels.2011.001.02.03

Abstract

Transgenik pada ikan lele dumbo (Clarias spp) dengan menggunakan metode elektroporasi pada sperma ikan sebagai media transfer gen masih belum pernah dilakukan di Indonesia, sehingga perlu dilakukan percobaan pemberian tegangan pada sperma ikan lele dumbo tersebut. Tujuan dilakukan penelitian ini adalah untuk mengetahui pengaruh stress kejutan listrik (V) terhadap (motilitas) sperma dan daya fertilisasi sperma ikan lele dumbo. Penelitian ini dilaksanakan di Laboratorium Breeding (Budidaya Perairan) Fakultas Perikanan dan Ilmu Kelautan serta di Laboratorium Sentral Ilmu Hayati (LSIH) Universitas Brawijaya Malang, Jawa Timur mulai bulan Januari sampai Juni 2009. Rancangan percobaan yang digunakan yaitu Rancangan Acak Lengkap (RAL) dengan 5 perlakuan 3 kali ulangan dan 1 kontrol. Sebagai perlakuan adalah perbedaan pemberian stress kejutan listrik dengan Gene pulser pada tegangan: A (40 V), B (160 V), C (280 V), D (400 V), E (520 V. Hasil penelitian menunjukkan bahwa pemberian stress kejutan listrik dengan tingkat voltase yang berbeda berpengaruh nyata terhadap motilitas sperma namun tidak berpengaruh nyata terhadap daya fertilisasi dan viabilitas sperma serta daya tetas telur. Berdasarkan analisis polynomial orthogonal didapatkan hubungan antara perlakuan tegangan dengan hasil motilitas sperma berbentuk linier dengan persamaan y=39,198-0,04x dengan R2=0,933 dan r=0,966. Semakin tinggi tegangan yang diberikan maka semakin rendah motilitas sperma yang dihasilkan. Dari hasil penelitian ini dapat disarankan bahwa elektroporasi pada sperma ikan lele dumbo (Clarias spp) sebagai media transfer gen sebaiknya dilakukan pada tegangan 40 Vcm-1 dengan satu kali kejutan dan lama kejutan 0,05 ms.Kata kunci: Clarias spp, sperma, elektroporasi, tegangan, transgenik

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