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Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences

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Published by Universitas Brawijaya

ISSN : 20875517 EISSN : 25274376 DOI : -

Core Subject : Agriculture, Social,

Agriculture, Biological Sciences & Forestry Environmental Science

The Journal of Tropical Life Science (JTLS) provides publication of full-length papers, short communication and review articles describing of new finding or theory in living system, cells and molecular level in tropical life science and related areas. The journal publishes articles that report novel findings of wide Tropical Life system phenomenon in the areas of biodiversity, agriculture, fisheries, health, husbandry, forestry and environmental technology. JTLS has 1 volume with 3 issues per year.

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Articles 986 Documents

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Rho- Kinase Inhibitor Y-27632 Decreases the Thickness of Trabecular Meshwork in Juvenile Rats Mod-el Injected with Sodium Hyaluronate Vierlia, Wino Vrieda; Wulandari, Lely Retno; Sujuti, Hidayat; Effendi, Ma'sum
Journal of Tropical Life Science Vol 8, No 2 (2018)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.08.02.13

Most glaucoma drugs lower the intraocular pressure (IOP) by decreasing the aqueous humor production and increasing the outflow through uveoscleral pathway. None of these drugs work mainly on increasing outflow through the trabecular pathway. Consequently, the experiment to develop glaucoma drugs directly target at the trabecular outflow pathway is highly required. The purpose of this study is to reveal the effect of rho-kinase inhibitor Y-27632 on the thickness of trabecular meshwork in juvenile rats model injected with sodium hyalu-ronate.Â This study was an experimental study with posttest only control group design. Twenty-four rats were included in this study. Each eye of the rat would be considered as one sample. Samples were divided into 6 groups, negative control group, positive control I group with intracameral sodium hyaluronate injection, posi-tive control II group with topical Y-27632 10 mM, and three experimental groups with intracameral injection of sodium hyaluronate and Y-27632 10-1 mM, 1 mM, and 10 mM respectively. After the procedures all rats were sacrificed and enucleated. Trabecular meshwork tissue was stained with Hematoxilene-Eosin and evalu-ated under 400Ã— microscopic magnification. Quantitative measurements were taken using computerized image analysis with dot slide program.Â There were significant statistic differences among the positive control I group and the experimental groups (p-value < 0.05) as well as the positive control II group and the experi-mental groups (p-value < 0.05). The highest mean of decreasing trabecular meshwork thickness was noted in the group given by sodium hyaluronate and Y-27632 10 mM with value of 118.42 Âµm. There was decreasing thickness of trabecular meshwork due to the effect of rho- kinase inhibitor Y-27632 in juvenile rats injected with sodium hyaluronate.

Proteinuria Severity in Lupus Nephritis is Associated with Anti-dsDNA Level and Immune Complex Deposit Location in Kidney Engli, Katherina; Handono, Kusworini; Eko, Mudjiwijono Handaru; Susianti, Hani; Gunawan, Atma; Kalim, Handono
Journal of Tropical Life Science Vol 8, No 3 (2018)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.08.03.03

Lupus nephritis (LN) is one of the manifestations of Systemic Lupus Erythematosus (SLE), with proteinuria being one of the clinical manifestations. The proteinuria pathogenesis is associated with anti-dsDNA antibody and the location of immune complex deposits within the kidney. This study aims to investigate the correlation of the severity of proteinuria with the location of immune complex deposits and the level of anti-dsDNA antibody in LN. Data were collected in cross-section. Fifty-three patients with LN in Saiful Anwar Hospital Malang, who underwent renal biopsy, were included. Hematoxylin-eosin staining and immunofluorescence analysis were used to assign subjects to different histopathological classes and determine the immune complex deposits. The spot urine samples were evaluated using the dipstick method for semi-quantitative proteinuria. The anti-dsDNA antibody levels were evaluated using the enzyme-linked immunosorbent assay (ELISA). Turbidity and enzymatic tests were conducted to elucidate urine protein and creatinine content, respectively. The level of proteinuria is significantly different among the different locations of immune complex based on the dipstick and protein/creatinine methods (p = 0.021 and p = 0.005, respectively). There was a significant correlation between anti-dsDNA antibody level and the severity of proteinuria (r = 0.326 based on dipstick and r = 0.28 based on protein/creatinine method). Thus, proteinuria in LN is determined by anti-dsDNA level and the location of immune complex deposits in the kidney.

Using Benthic Diatom to Assess the Success of Batch Culture System Phytoremediation Process of Water Irrigation Retnaningdyah, Catur; Arisoesilaningsih, Endang
Journal of Tropical Life Science Vol 8, No 3 (2018)
Publisher : Journal of Tropical Life Science

Diatoms or phytobenthic are often used as bio-indicators of water quality in freshwater ecosystems such as rivers, but have never been used for monitoring the quality of artificial water ecosystems. The objective of this research is to use the diatom as a bioindicator for measurement the success of phytoremediation process of irrigation water that has status hyper-eutrophic and is polluted from organic materials using polyculture of various local hydromacrophytes through batch culture system. This experimental study was conducted in a greenhouse through planting some local emergent, submerged and floating leaf hydromacrophytes on a 30 L bucket with a given substrate from sand and gravel. The experiment used a completely randomized design with two treatment included phytoremediation model and control in the form of substrate without hydromacrophyte which repeated three times at the same time. The success of phytoremediation model was determined through some biotic diatoms indices (Percentage Pollution Tolerant Value/%PTV, Tropical Diatom Index/TDI and Shannon Wiener Diversity Index) as bioindicator and the improved water physics chemical quality on days 0, six, and 13 after incubation. The results showed that phytoremediation process using polyculture hydromacrophytes through batch culture system for 13 days significantly improving the quality of irrigation water. Based on some biotic diatom indices, the water was improved from heavily organic pollution to moderately organic pollution (%PTV), from hypereutrophic to become eutrophic (TDI) and from moderately polluted become slightly polluted (Shannon Wiener Diversity Index). This results also supported from water physico-chemical parameters. Poly-culture of some local hydromacrophytes for six days significantly decreased the organic matter content of irrigation water was reflected from the decrease concentration of Biochemical Oxygen Demand/BOD (14.79 mg/L to 3.61 mg/L), Total Suspended Solid/TSS (14.6 mg/L to 0.08 mg/L), turbidity (19.97 NTU to 1.46 NTU), nitrate (1.44 mg/L to 0.03 mg/L), orthophosphate (0.24 mg/L to 0.042 mg/L), Total Kjeldahl Nitrogen (TKN) (0.93 mg/L to 0.68 mg/L), and free chlorine (0.09 mg/L to 0.05 mg/L), while concentration of Chemical Oxygen Demand (COD) decreased significantly 13 days after incubation from 48.3 mg/L to18.2 mg/L.

Species Richness and Endemism of Zingiberaceae in Cinchona Forest Reserve, Lantapan, Bukidnon, Philippines Jayme, John Austin Lennox Faro; Mendez, Noe Polo; Mendez, Rainear Auxtero; Somera, Daniel F; Mohagan, Alma B
Journal of Tropical Life Science Vol 10, No 2 (2020)
Publisher : Journal of Tropical Life Science

This study was carried out to provide information on species richness and endemism of Zingiberaceae in Cinchona Forest Reserve, Kaatuan, Lantapan, Bukidnon, Philippines. Transect walks, opportunistic sampling and collection within the sampling quadrats were conducted along established forest trails to collect ginger species. A total of 11 species of Zingiberaceae were documented belonging to two subfamilies (Alpinioideae and Zingiberoideae) and three tribes (Alpinieae, Hedychieae, and Zingibereae). The species recorded include Adelmeria alpina Elmer, Alpinia haenkei C.Presl, A. rufa C.Presl, Etlingera fimbriobracteata (K.Schum.) R.M.Sm., E. pubimarginata (Elmer) A.D.Poulsen, Hedychium philippinense K.Schum., Hornstedtia conoidea Ridl., H. lophophora Ridl., Meistera muricarpa (Elmer) Å korniÄk. & M.F.Newman, Zingiber banahaoense Mood & Theilade, and Zingiber sp. Of these, H. philippinense is the only threatened species recorded. All species are endemic to the Philippines except for E. fimbriobracteata which is native to Borneo and Zingiber sp. which is unidentified to the species level. These species represent 41% of the total genera and 9% of the total species of Zingiberaceae in the Philippines. The high endemicity (82%) in the total collected species in this study and the presence of a threatened species in this area calls for protection and conservation by the stakeholders.

Application of Atmospheric Pressure Argon Plasma Jet (APAPJ) in Biomedical Science and Engineering Gurung, Jyoti Prakash; Subedi, Deepak Prasad; Shrestha, Rajendra; Shrestha, Bhupal Govinda
Journal of Tropical Life Science Vol 10, No 2 (2020)
Publisher : Journal of Tropical Life Science

In this paper, we demonstrated the application of atmospheric pressure argon plasma jet (APAPJ) in biomedical science such as cancer therapy and biomedical engineering such as surface modification of polystyrene Petri dishes for animal cell culture. We observed that APAPJ, when exposed to breast cancer cell line (MDA-MB-231) for 60 seconds at a distance of ~ 2.5 cm, reduced the cancer cells by 57%. This reduction in cancer cell concentration demonstrated the cancer-killing property of APAPJ. Further optimization of APAPJ's various operational parameters and in-depth biochemical study is required to figure out the mechanism responsible for killing cancer cells. Also, we investigated cell adhesion and proliferation due to APAPJ treatment by Crystal Violet (CV) staining and MTT Assay. We observed that APAPJ treatment of polystyrene Petri dishes for 60 - 240 s at a distance of ~ 3.5 cm exhibited enhancement in adhesion of breast cancer cell line (MDA-MB-231). We also demonstrated the increase in hydrophilicity by a reduction in contact angle to 30.3Â°Â±3 after 240 seconds of APAPJ treatment of polystyrene samples. The hydrophilicity of the substrate has proven to enhance cell adhesion. Consequently, APAPJ could be employed as a simple, inexpensive and environmentally friendly method for surface modification of polystyrene plates for animal cell culture.

First record of the genus Metacirolana sp. and Cymodoce tribullis (Crustacea; Isopoda) from South Andaman, Andaman Islands, India Anil, Pathan; Ummath, Ameen; Mohammed PS, Bijin; Jayaraj, Kaderambil Arjunan
Journal of Tropical Life Science Vol 10, No 2 (2020)
Publisher : Journal of Tropical Life Science

Isopoda are one of the most poorly known crustaceans in Andaman and Nicobar Islands. The present study has recorded genus Metacirolana sp. and Cymodoce tribullis, for the first time from South Andaman. This recent sighting provides a new distribution of this two species in the Indian province. The specimens were collected from the seaweeds of intertidal regions of Kodiyaghat, South Andaman, Andaman Islands. The morphological characteristics of these two species were described. Furthermore, this study adds two more species to the isopoda check list of Andaman and Nicobar Islands. The present study also provides additional information on epifaunal communities associated with the seaweeds in the intertidal region of Kodiyaghat, South Andaman.

A REVIEW OF PHARMACEUTICAL RECOMBINANT PROTEINS AND GENE TRANSFORMATION APPROACHES IN TRANSGENIC POULTRY Fallahi, Sepideh; Mohammadhassan, Reza
Journal of Tropical Life Science Vol 10, No 2 (2020)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.10.02.09

Transgenic animals are employed to synthesize pharmaceutical recombinant proteins for three decades. There are many problems to use farm mammalian animals for recombinant production such as high cost of production and maintenance, long generation interval, toxic effects of some human-source pharmaceutical proteins in other mammalian and incompatibility of human-source glycosylation with the other mammalian' glycosylation that all lead to low efficiency. Thus, transgenic poultry has been considered as the bioreactor of recombinant protein production. Increasing demand for pharmaceutical human proteins caused to make considerable efforts to develop transgenic poultry producing eggs contain recombinant protein. In the present review, at the first, transgenic animal and poultry are compared for their benefits and limitations. Then, the protein content of the egg, the features, gene and promoter of the egg are studied. After that, the recent achievements of the producing pharmaceutical recombinant proteins are considered. In the following, there are some explanations about gene transformation approaches in poultry, including sperm-, testis-, PGCs, and blastocyst-mediated methods depending on CRISPR/Cas9, Retroviral vectors, and DNA microinjection techniques, and embryonic manipulation approaches such as windowing and Ex ovo for introducing and injecting transformed cells into eggs.

Non-breeding Ethology of Spot-billed Pelican (Pelecanus philippensis) at Adyar Eco-Park, Chennai, India Bandyopadhyay, Meghna; Basu Roy, Rishin; Chatterjee, Arijit
Journal of Tropical Life Science Vol 4, No 3 (2014)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar

Assessment of bio-activities of the crude extract and components of Withania somnifera leaves by bioinformatics Widodo, Nashi; Priyandoko, Didik; Deocaris, Custer C.; Wadhwa, Renu; Kaul, Sunil C.
Journal of Tropical Life Science Vol 1, No 1 (2010)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.1.1.%x

Traditional herbal medicines are now increasingly being appreciated with Western models of integrative health sciences and evidence-based approach both in the basic research and clinic scenario. Ashwagandha is a commonly used plant in Ayurvedic, Indian traditional medicine. Medicinal value of Ashwagandha (WithaniasomniferaDunal) extends from anti-inflammatory, anti-arthritic, anti-rheumatic, rejuvenation and anti-cancer. Based on the belief that holistic multi-site mechanism of action offers greater chance of success, the traditional Ayurvedicmedicine practices the use of whole herb or its crude extract. It opposes with the mainstream of pharmaceutical industry that uses single and purified molecules. In the present study, we used bioinformatics approach to reveal the mechanism of action of (i) crude extract of Ashwagandha leaf extract and its purified components, (ii) Withanone and (iii) Withaferin A. Whereas p53-p21 was identified as a common signaling pathway for the three kinds of reagents, specific signaling pathways for Withaferin-A and Withanone were identified. Whereas the crude extract and Withanone were selectively toxic to human cancer cells, Withaferin A showed cytotoxicity to the normal cells too. The study suggested that the crude extract or a combinational formulamay be a superior and safenatural reagent for cancer treatment.

Genetic Diversity of Porang Populations (Amorphophallus Muelleri Blume) In Central Java and West Java Based on LEAFY Second Intron Marker Nikmah, Isna Arofatun; Azrianingsih, Rodiyati; Wahyudi, Didik
Journal of Tropical Life Science Vol 6, No 1 (2016)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.06.01.05

Porang (Amorphophallus muelleri Blume) dispersed and grows well in Java island. This research aimed to determine the genetic diversity of porang populations in Central Java and West Java based on LEAFY second intron (nuclear genome encoding flower development). DNA samples of porang were from previous study, which are obtained from Central Java (Pamedaran, Grobogan, Wonogiri, Karangtengah) and West Java (Cisompet) as ingroup. A. variabilis from Pamedaran Brebes, A. ochroleucus, A. longituberosus, A. sumawongii, and A. tinekeae from genbank were treated as outgroup. LEAFY second intron was amplified using primers FLint2 F1 5â€™-CTTCCACCTCTACGACCAGTG-3â€™ and FLint2 R1 5â€™-TCTTGGGCTTGTTGATGTAGC-3â€™. Analysis using dnasp5 showed that 23 samples had 89 invariable sites and 139 variable sites that consisted of 12 singleton two variants sites, 118 parsimony-informative two variants sites and 9 Parsimony-informative three variants sites. The total of haplotype were 7 haplotypes where 16 ingroup samples clumped on haplotype 1 whereas 2 samples of Grobogan (Grobogan I and Grobogan III) clumped on haplotype 2 and outgroup samples occupied at their own haplotype. Genetic distance of all ingroup samples were 0-0,004 showing no differences among individuals. Analysis of phylogenetic tree using Maximum Parsimony, Neighbor Joining and Maximum Likelihood resulting a polytomy branch of ingroup samples except Grobogan which forms a separated sub clad.Â Key words: Genetic diversity, haplotype, Java, LEAFY, Porang.

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