Academic literature on the topic 'Alona siamensis'

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Journal articles on the topic "Alona siamensis"

1

Sousa, Francisco Diogo Rocha, Lourdes Maria Abdu Elmoor-Loureiro, and Sandro Santos. "Position of the dentifera-group in the Coronatella-branch and its relocation to a new genus: Magnospina gen. n. (Crustacea, Chydoridae, Aloninae)." ZooKeys 586 (May 4, 2016): 95–119. https://doi.org/10.3897/zookeys.586.8209.

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Magnospina gen. n. was created to relocate species of the dentifera-group from Alona sensu lato (Crustacea: Cladocera) and include Magnospina dentifera comb. n. and Magnospina siamensis comb. n. The synapomorphies of the Magnospina gen. n. are (1) basal spines longer than 2/3 of the postabdominal claw, (2) presence of 1–4 large denticles, broad at their bases, protruding downwards, without setules between them. Morphological traits such as habitus, rostrum and postabdomen shape, armature of IDL setae, number of setae on the exopod of limb III are also important in the distinction between Magno
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2

GHAZALI, SITI ZAFIRAH, SÉBASTIEN LAVOUÉ, KHAIRONIZAM MD ZAIN, et al. "Low morphological and genetic variation within the glass-perchlet Parambassis siamensis (Teleostei: Ambassidae) in Peninsular Malaysia." Zootaxa 5128, no. 4 (2022): 486–502. http://dx.doi.org/10.11646/zootaxa.5128.4.2.

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We compare several populations of the glass-perchlet Parambassis siamensis (Fowler 1937) (Teleostei: Ambassidae) sampled throughout Peninsular Malaysia to determine their degree of differentiation, using both morphological and molecular characters. Our morphological analyses do not show evidence for the presence of more than one species, with the range of morphometric and meristic characters overlapping among populations. Our genetic analysis using partial sequences of the mitochondrial gene coding for the protein cytochrome c oxidase I (COI) reveals the existence of two clades that diverge fr
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3

Lay, Mimi, Qing Liang, Geoffrey K. Isbister, and Wayne C. Hodgson. "In Vitro Efficacy of Antivenom and Varespladib in Neutralising Chinese Russell’s Viper (Daboia siamensis) Venom Toxicity." Toxins 15, no. 1 (2023): 62. http://dx.doi.org/10.3390/toxins15010062.

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The venom of the Russell’s viper (Daboia siamensis) contains neurotoxic and myotoxic phospholipase A2 toxins which can cause irreversible damage to motor nerve terminals. Due to the time delay between envenoming and antivenom administration, antivenoms may have limited efficacy against some of these venom components. Hence, there is a need for adjunct treatments to circumvent these limitations. In this study, we examined the efficacy of Chinese D. siamensis antivenom alone, and in combination with a PLA2 inhibitor, Varespladib, in reversing the in vitro neuromuscular blockade in the chick bive
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4

Laphookhieo, Surat, Wisanu Maneerat, Sorwaporn Koysomboon, Rattana Kiattansakul, Kan Chantrapromma, and John Keith Syers. "A novel limonoid from the seeds of Chisocheton siamensis." Canadian Journal of Chemistry 86, no. 3 (2008): 205–8. http://dx.doi.org/10.1139/v07-155.

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Analysis of an acetone/hexane (1:1) extract of the seeds of Chisocheton siamensis led to the isolation of a novel limonoid, chisosiamensin (1), along with five known limonoids, dysobinin (2), azadiradione (3), mohinin (4), epoxyazadiradione (5), and 6α-acetoxyepoxyazadiradione (6). Their structures were characterized by spectroscopic methods, including UV, IR, NMR, and MS. All isolated limonoids were reported for the first time as secondary metabolites of C. siamensis.Key words: Chisocheton siamensis, Meliaceae, chisosiamensin, limonoids.
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5

Rachprakhon, Phuphitchan, and Watchariya Purivirojkul. "Very low prevalence of Opisthorchis viverrini s.l. cercariae in Bithynia siamensis siamensis snails from the canal network system in the Bangkok Metropolitan Region, Thailand." Parasite 28 (2021): 2. http://dx.doi.org/10.1051/parasite/2020072.

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The liver fluke Opisthorchis viverrini s.l. is associated with a long-term public health problem in Thailand. However, O. viverrini s.l. infection in Bithynia snails in the canal network system (CNS) in the Bangkok Metropolitan Region (BMR) has never been assessed. This study aimed to investigate the occurrence of B. siamensis siamensis and the prevalence of O. viverrini s.l. infection in this snail in the CNS in BMR along with morphological examination and molecular analyses on O. viverrini s.l. cercariae. The snails were randomly sampled from the CNS in all BMR areas from January 2018 to Jul
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6

Rachprakhon, Phuphitchan, and Watchariya Purivirojkul. "Very low prevalence of Opisthorchis viverrini s.l. cercariae in Bithynia siamensis siamensis snails from the canal network system in the Bangkok Metropolitan Region, Thailand." Parasite 28 (2021): 2. http://dx.doi.org/10.1051/parasite/2020072.

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The liver fluke Opisthorchis viverrini s.l. is associated with a long-term public health problem in Thailand. However, O. viverrini s.l. infection in Bithynia snails in the canal network system (CNS) in the Bangkok Metropolitan Region (BMR) has never been assessed. This study aimed to investigate the occurrence of B. siamensis siamensis and the prevalence of O. viverrini s.l. infection in this snail in the CNS in BMR along with morphological examination and molecular analyses on O. viverrini s.l. cercariae. The snails were randomly sampled from the CNS in all BMR areas from January 2018 to Jul
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7

Dumidae, Abdulhakam, Jiranun Ardpairin, Supawan Pansri, et al. "Bithyniid snails (Gastropoda: Bithyniidae) infected with Xiphidiocercariae in Thailand include a new record of Bithynia siamensis siamensis as the intermediate host of Plagiorchis and Paralecithodendrium." PLOS ONE 20, no. 2 (2025): e0317052. https://doi.org/10.1371/journal.pone.0317052.

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Bithyniids are freshwater snails that play a crucial role in the transmission of various parasitic trematodes of medical and veterinary importance. In this study, we explored the prevalence of cercarial trematode infections in bithyniid snails from Thailand and examined the species diversity of both the intermediate snail hosts and parasite larvae. A total of 688 bithyniid snails were collected from diverse natural habitats at 24 locations in 16 provinces across 5 regions of Thailand. The presence of larval trematode infections was examined using the cercarial shedding method. Both the collect
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8

Lay, Mimi, and Wayne C. Hodgson. "A Comparison of the Efficacy of Antivenoms and Varespladib against the In Vitro Pre-Synaptic Neurotoxicity of Thai and Javanese Russell’s Viper (Daboia spp.) Venoms." Toxins 16, no. 3 (2024): 124. http://dx.doi.org/10.3390/toxins16030124.

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The heterogeneity in venom composition and potency in disparate Eastern Russell’s viper (Daboia siamensis) populations has repercussions for the efficacy of antivenoms. This is particularly pronounced in geographical areas in which the venom of the local species has not been well studied and locally produced antivenoms are unavailable. In such cases, alternative therapies following envenoming, which are not limited by species specificity, may be employed to complement antivenoms. We studied the neuromuscular activity of D. siamensis venom from Thailand and Java (Indonesia) and the ability of T
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9

Fallahi, Maryam, Alireza Armand, Fatimah Al-Otibi, Kevin D. Hyde, and Ruvishika S. Jayawardena. "Pathogenic fungi (Sordariomycetes) associated with annual and perennial crops in Northern Thailand." MycoKeys 117 (May 9, 2025): 191–265. https://doi.org/10.3897/mycokeys.117.137112.

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Phytopathogenic fungi induce severe diseases in plant hosts, potentially leading to significant crop quantity and quality reductions. In this study, we isolated and identified pathogenic fungi that threaten the successful cultivation of annual and perennial crops in northern Thailand. Samples with leaf spots, fruit rot, wilting, and dieback symptoms were collected from 19 different crops in Chiang Rai, Chiang Mai, and Sakon Nakhon provinces in Thailand. Out of 183 isolates, 27 were selected for molecular analysis and multi-gene phylogenetic study based on their diverse host range, geographical
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10

Mao, Xiao-Mei, Qi-Rui Fu, Hua-Liang Li, et al. "Crocodile choline from Crocodylus siamensis induces apoptosis of human gastric cancer." Tumor Biology 39, no. 3 (2017): 101042831769432. http://dx.doi.org/10.1177/1010428317694320.

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Crocodile choline, an active compound isolated from Crocodylus siamensis, was found to exert potent anti-cancer activities against human gastric cancer cells in vitro and in vivo. Our study revealed that crocodile choline led to cell cycle arrest at the G2/M phase through attenuating the expressions of cyclins, Cyclin B1, and CDK-1. Furthermore, crocodile choline accelerated apoptosis through the mitochondrial apoptotic pathway with the decrease in mitochondrial membrane potential, the increase in reactive oxygen species production and Bax/Bcl-2 ratio, and the activation of caspase-3 along wit
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