journal
https://read.qxmd.com/read/38144382/cryptobrachytone-c-from-cryptocarya-pulchrinervia-kosterm-leaves-on-proliferation-apoptosis-migration-and-clonogenicity-of-mcf-7-and-t47d-cell-lines
#21
JOURNAL ARTICLE
Jujun Ratnasari, Marselina Irasonia Tan, Rizkita Rachmi Esyanti, Lia Dewi Juliawaty
Cryptocarya pulchrinervia is an Indonesian indigenous plant that grows in Sumatra, Kalimantan and Papua. One of the new compounds extracted from this plant was cryptobrachytone C, which was known to be cytotoxic against cancer cells of Murine leukemia P388 with IC50 10.52 μM. In this study, the cytotoxicity and anticancer properties of cryptobrachytone C on proliferation, apoptosis, migration and clone formation of MCF-7 and T47D breast cancer cell lines were examined, which had not previously been done before...
June 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/38144381/the-optimal-dosage-of-fermented-herbal-extract-on-growth-and-feed-efficiency-of-nile-tilapia-oreochromis-niloticus
#22
JOURNAL ARTICLE
Yushinta Fujaya, Andi Aliah Hidayani, Dwi Kesuma Sari, Siti Aslamyah, Nita Rukminasari, Abdul Muthalib, Stevie Cristianto, Emilia Defista, Hanafiah Fazhan, Khor Waiho
Owing to their availability, cost effectiveness and environmental-friendly nature, plant extracts are promising additives for fish farming. This study aims to determine the optimal dosage of fermented herbal extract (FHE)-composed of Morus alba (33.3%), Curcuma xanthorrhiza (33.3%), and Boesenbergia rotunda (33.3%)-for growth enhancement and feed utilisation efficiency of Oreochromis niloticus fingerlings. Fermentation was conducted using probiotics Lactobacillus casei (Yakult®, Tokyo, Japan) and Saccharomyces cereviceae (commercial baker's yeast)...
June 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/38144380/silver-nanoparticles-for-enhancing-the-efficiency-of-micropropagation-of-banana-musa-acuminata-l
#23
JOURNAL ARTICLE
Samih M Tamimi, Halima Othman
Silver nanoparticles (AgNPs) have numerous applications in plant biotechnology. The unique biological activities of AgNPs in reducing microbial contamination and promoting in vitro plant growth have encouraged their use in the development of novel culture systems for the in vitro cultivation of several plant species. In this study, the influence of (80 nm-100 nm) AgNPs on the micropropagation of banana was examined by incorporating AgNPs into shoot multiplication and rooting media at concentrations of 3 mg/L-15 mg/L...
June 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/38144379/soil-enzymes-and-antioxidants-activities-of-edible-vegetables-grown-in-soils-polluted-by-gas-flaring
#24
JOURNAL ARTICLE
Doris Akachukwu, Paul Ndubuisi Anyiam, Polycarp Nnacheta Okafor, Chiedozie Ibegbulem, Ifeoma Irene Ijeh
Associated gas flaring has several consequences on the environment. This study was aimed at assessing the impact of gas flaring on soil enzymes and plant antioxidant activities from gas flare-bearing communities in Nigeria. Soil and plant samples were obtained from farmlands in Ukwa West and Izombe gas flaring sites, as well as unpolluted site from Olokoro (used as control). The level of activities of soil urease, dehydrogenase, phosphatases, plant antioxidant enzymes and lactate dehydrogenase (LDH) of selected plants ( Gnetum africanum [GA], Piper guineense [PG], Gongronema latifolium [GL], Pterocarpus mildbraedii [PM]) were evaluated using standard methods...
June 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/38144378/evolution-of-the-food-web-in-bandon-bay-the-gulf-of-thailand-ten-years-of-the-blue-swimming-crab-stocking-programme
#25
JOURNAL ARTICLE
Amonsak Sawusdee, Sontaya Koolkalya, Thanitha Thapanand, Tuantong Jutagate
The ecosystem of Bandon Bay, in the Gulf of Thailand (GoT), has been impacted since 2007 by the continued stocking of larval blue swimming crab Portunus pelagicus , also called a crab bank. In this study, the food web in the Bay was modelled using Ecopath software to compare the trophic status, interaction and energy flow among the components in the system in 2007 and 2016 (i.e., before and 10 years after the crab bank intervention). The models were based on data collected from trawling. Twenty fish and shellfish components were used in the 2007 model, while 22 were used in the 2016 model...
June 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/38144377/nano-hydroxyapatite-isolation-and-characterisation-of-echinometra-mathaei-from-the-persian-gulf
#26
JOURNAL ARTICLE
Ali Rajabiyan, Luigi Vaccaro, Amanollah Zarei Ahmady
The study focuses on the preparation and characterisation (physicochemical and mechanical) of hydroxyapatite [Ca10 (PO4 )6 (OH)2 ] (HA) from sea urchin, Echinometra mathaei . Therefore, nano-sized HA prepared from sea urchin shells were collected from beaches of the Persian Gulf in Iran. Sea urchin shells were found a source of calcium carbonate in the form of aragonite (calcite) that crystallised in an organic matrix. HA is one of the polymers used in coating the nanoparticles extracted from various sources...
June 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/38144376/in-silico-screening-and-molecular-dynamics-simulation-of-potential-anti-malarial-agents-from-zingiberaceae-as-potential-plasmodium-falciparum-lactate-dehydrogenase-pfldh-enzyme-inhibitors
#27
JOURNAL ARTICLE
Muhammad Fikri Heikal, Wira Eka Putra, Sustiprijatno, Muhaimin Rifa'i, Arief Hidayatullah, Febby Nurdiya Ningsih, Diana Widiastuti, Adawiyah Suriza Shuib, Baiq Feby Zulfiani, Afrabias Firyal Hanasepti
Malaria continues to be a major public health issue in a number of countries, particularly in tropical regions-the emergence of drug-resistant Plasmodium falciparum encourages new drug discovery research. The key to Plasmodium falciparum survival is energy production up to 100 times greater than other parasites, primarily via the PfLDH. This study targets PfLDH with natural bioactive compounds from the Zingiberaceae family through molecular docking and molecular dynamic studies. Sulcanal, quercetin, shogosulfonic acid C, galanal A and naringenin are the Top 5 compounds with a lower binding energy value than chloroquine, which was used as a control in this study...
June 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/38144375/species-distribution-model-for-the-asian-tapir-and-vegetation-characteristics-of-batang-gadis-national-park-north-sumatra-indonesia
#28
JOURNAL ARTICLE
Wanda Kuswanda, Freddy Jontara Hutapea, Muhammad Hadi Saputra, Bobby Nopandry
The Asian tapir is a primitive mammal whose habitat is heavily fragmented due to human activities. Studies on the Asian tapirs in Sumatra are very few, thereby basic information for developing tapir conservation programmes is limited. This study aimed to develop the species distribution model to map the potential distribution of tapirs in Batang Gadis National Park (BGNP), investigate the characteristic of tapir habitat, and identify tapir feed plants around BGNP. The model was developed using the Maximum Entropy (Maxent) approach, based on the existing information on tapir occurrence in BGNP and environmental variables...
June 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/38144374/construction-of-novel-yeast-strains-from-candida-tropicalis-kbkti-10-5-1-and-saccharomyces-cerevisiae-dby1-to-improve-the-performance-of-ethanol-production-using-lignocellulosic-hydrolysate
#29
JOURNAL ARTICLE
Jamaluddin, Eny Ida Riyanti, Nisa Rachmania Mubarik, Edy Listanto
Increased consumption of xylose-glucose and yeast tolerance to lignocellulosic hydrolysate are the keys to the success of second-generation bioethanol production. Candida tropicalis KBKTI 10.5.1 is a new isolated strain that has the ability to ferment xylose. In contrast to Saccharomyces cerevisiae DBY1 which only can produce ethanol from glucose fermentation. The research objective is the application of the genome shuffling method to increase the performance of ethanol production using lignocellulosic hydrolysate...
June 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/38144373/the-effects-of-peat-swamp-forest-patches-and-riparian-areas-within-large-scale-oil-palm-plantations-on-bird-species-richness
#30
JOURNAL ARTICLE
Bettycopa Amit, Wauter Ralph Klok, Peter J Van Der Meer, Nik Sasha Khatrina Khairuddin, Ivan Chiron Yaman, Kho Lip Khoon
It is well established that oil palm is one of the most efficient and productive oil crops. However, oil palm agriculture is also one of the threats to tropical biodiversity. This study aims to investigate how set-aside areas in an oil palm plantation affect bird biodiversity. The research area includes two set-asides areas: peat swamp forest and riparian reserves and two oil palm sites adjacent to reserved forest sites. A total of 3,074 birds comprising 100 species from 34 families were observed in an oil palm plantation landscape on peatland located in the northern part of Borneo, Sarawak, Malaysia...
June 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/37065805/molecular-detection-of-the-harmful-raphidophyte-chattonella-subsalsa-biecheler-by-whole-cell-fluorescence-in-situ-hybridisation-assay
#31
JOURNAL ARTICLE
Winnie Lik Sing Lau, Sing Tung Teng, Hong Chang Lim, Kieng Soon Hii, Sandric Chee Yew Leong, Chui Pin Leaw, Po Teen Lim
Species of the genus Chattonella (Raphidophyceae) are a group of marine protists that are commonly found in coastal waters. Some are known as harmful microalgae that form noxious blooms and cause massive fish mortality in finfish aquaculture. In Malaysia, blooms of Chattonella have been recorded since the 1980s in the Johor Strait. In this study, two strains of Chattonella were established from the strait, and morphological examination revealed characteristics resembling Chattonella subsalsa . The molecular characterization further confirmed the species' identity as C ...
March 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/37065804/antidiabetic-antioxidant-and-anti-inflammatory-activities-of-residual-aqueous-fraction-of-ethulia-conyzoides-in-induced-type-2-diabetic-rats
#32
JOURNAL ARTICLE
Helen Omasan Okotie, Tayo Micheal Anjuwon, Okwubenata Lilian Okonkwo, Danladi Amodu Ameh, Dorcas Bolanle James
Oxidative stress and inflammation have been proven to be implicated in the pathogenesis of type 2 diabetes. Recent studies showed that Ethulia conyzoides had in-vitro antioxidant activity. This study investigated the in-vivo antidiabetic, antioxidant, and anti-inflammatory potential of the residual aqueous fraction of Ethulia conyzoides in type 2 diabetic-induced male Wistar rats. Sub-acute antidiabetic studies were done with varying doses (100, 200, and 400 mg/kg body weight) of residual aqueous fraction for 21 days...
March 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/37065803/assessment-on-water-quality-parameter-and-nutrients-level-of-nyatuh-river-in-relations-with-macrobrachium-rosenbergii-prawn-populations
#33
JOURNAL ARTICLE
Nor Azman Kasan, Mhd Ikhwanuddin, Hidayah Manan, Nur Syafirah Zakaria, Amyra Suryatie Kamaruzzan, Ahmad Ideris Abdul Rahim, Ahmad Najmi Ishak
In order to determine the safety level of water parameters and nutrients in the natural environment of fish and freshwater prawn in Nyatuh River, Terengganu, Malaysia, it is necessary to conduct an assessment of water quality parameters. Due to its important, a study was conducted to assess the water quality parameter and nutrients contents from Nyatuh River of Setiu Terengganu in relations to the population of freshwater prawn, Macrobrachium rosenbergii caught along the Nyatuh River basin. Total of four expeditions and five stations at different tidal condition for the water quality parameter were assessed during the study...
March 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/37065802/effect-of-karas-aquilaria-malaccensis-on-male-reproductive-organs-and-sperm-quality-in-adult-sprague-dawley-rats
#34
JOURNAL ARTICLE
Norahidah Zaidi, Mohd Nizam Haron, Connie Fay Komilus, Fathurrahman Lananan, Ha Hou Chew, Nadzifah Yaakub, Asmad Kari
Reproductive health and male fertility are closely related to dietary practices. In recent years, Malaysia has shown a lot of interest in using herbal plants as dietary supplements or in the treatment of numerous diseases. Aquilaria malaccensis , commonly known as karas or gaharu, has recently gained attention for its potential to cure many diseases due to its pharmacological properties. However, studies on its effect on male fertility and reproductive organs are very scarce. This study was conducted to determine the effect of A...
March 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/37065801/decreased-severity-of-acute-hepatopancreatic-necrosis-disease-in-white-shrimp-litopenaeus-vannamei-by-mixed-culture-of-bacillus-subtilis-bacillus-licheniformis-and-bacillus-megaterium
#35
JOURNAL ARTICLE
Saowapha Surawut, Kunyarut Suntara, Winyou Puckdee, Chutapa Kunsook, Pornpimon Kanjanavas, Anchalee Kompatiparn, Prachuab Leeruksakiat
The objective of this study was to investigate the mixed culture of Bacillus subtilis, B. licheniformis and B. megaterium to control acute hepatopancreatic necrosis disease (AHPND) or EMS (Early Mortality Syndrome) in white shrimp Litopenaeus vannamei as a model. The infected shrimps with Vibrio parahaemolyticus AHPND strain were divided into tanks and different feeding of either B. subtilis, B. licheniformis , B. megaterium or all Bacillus strains. The infected shrimps that were fed with a mixed culture of Bacillus showed significantly highest survival rate and revealed lower percent detection of V...
March 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/37065800/uncovering-the-microbiota-of-bagworm-metisa-plana-lepidoptera-psychidae-in-oil-palm-plantations-in-malaysia
#36
JOURNAL ARTICLE
Andrew Ting, Cik Mohd Rizuan Zainal Abidin, Noor Hisham Hamid, Ghows Azzam, Hasber Salim
Bagworm Metisa plana is one of the major pests in Malaysia's oil palm plantation, with infestation resulting in huge economical loss. Currently, the microbial profile of the bagworm has yet to be study. Understanding the biology of the pest such as the bacterial community is crucial as bacteria associated with insects often provide benefits to the insect, giving the insect host a better chance of survival. Here, 16S amplicon sequencing was used to identify the bacteria community of M. plana. Additionally, two comparisons were made, the bacterial communities between two larval stages (early instar stage and late instar stage) from outbreak area; the bacterial communities of late instar stage larvae from non-outbreak between outbreak areas...
March 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/37065799/a-demi-decade-of-mammal-research-a-rapid-assessment-within-the-heart-of-borneo-in-sabah
#37
JOURNAL ARTICLE
Mohd Aminur Faiz Suis, Jabanus Miun, Lawrence Tingkoi, Alexander Yuk Loong Hastie, Arthur Chung Yaw Chyang, Reuben Nilus
Sabah contributes 4.2 million hectares to the total Heart of Borneo (HoB) areas. Some of the forest reserves in the HoB are newly gazetted as Totally Protected Forest. Hence, their mammal diversity has to be comprehensively documented. This study aims to record the presence of terrestrial mammal species, and assess the prevalence of poaching in selected forest reserves within the Sabah HoB area. A total of 15 forest reserves were surveyed within a 5-year timeframe which recorded 60 terrestrial mammal species, including 21 Bornean endemics...
March 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/37065798/2-octylcyclopentanone-inhibits-beta-lactam-resistant-diabetic-wound-pathogens
#38
JOURNAL ARTICLE
Nur Amiera Syuhada Rozman, Tong Woei Yenn, Leong Chean Ring, Syarifah Ab Rashid, Tan Wen-Nee, Jun Wei Lim
Microbial infection is a frequent complication of diabetic foot ulcers, with up to 82% of ulcers being infected at the initial stage of diabetes. Furthermore, the emergence of beta lactam resistant pathogens managed to eliminate the use of beta lactam antibiotics as a chemotherapeutic alternative. This further increases the amputation and mortality rate. Hence, the aim of this study is to evaluate antimicrobial efficacy of a ketone derivative 2-octylcyclopentanone against diabetic wound pathogens. The inhibitory activity of the compound was determined using disc diffusion and broth microdilution assay...
March 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/37065797/blood-glucose-level-langerhans-pancreas-and-lipid-profile-of-diabetic-rats-after-administration-of-red-betel-ginger-and-cinnamon-combination-extract
#39
JOURNAL ARTICLE
Mega Safithri, Maria Bintang, Syaefudin
Previous studies had reported antihyperglycemic activity in vitro , in vivo and in silico of red betel ( Piper crocatum ) extract, which was associated with its polyphenolic, tannins, alkaloids, and flavonoids compounds. This study aimed to determine blood glucose level, Langerhans pancreas, lipid profile and bodyweight of streptozotocin-induced diabetic rats after administrating red betel combination extract. Red betel combination extract is composed of red betel extract that was combined with ginger and cinnamon extracts...
March 2023: Tropical Life Sciences Research
https://read.qxmd.com/read/37065796/comparative-morpho-anatomical-studies-of-two-philippine-endemic-species-of-amyema-tiegh-loranthaceae
#40
JOURNAL ARTICLE
Romeo M Tubongbanua, Noe P Mendez, Victor B Amoroso
Amyema are epiphytic hemiparasitic plants on different types of woody host plants and are abundant in temperate, subtropical, and tropical regions. In Marilog Forest Reserve, Southern Philippines, two Philippine endemic species of Amyema were recorded, viz ., Amyema curranii (Merr.) Danser and A. seriata (Merr.) Barlow. In this study, these two species were compared and examined for their morphology and anatomy. Data revealed that the two Amyema species are morphologically distinct, with A. curranii having lanceolate leaves, pink flowers, and red fruits, whereas A...
March 2023: Tropical Life Sciences Research
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