Lawan Chanhome

ORCID: 0000-0003-2425-5000
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Research Areas
  • Venomous Animal Envenomation and Studies
  • Amphibian and Reptile Biology
  • Rabies epidemiology and control
  • Marine Invertebrate Physiology and Ecology
  • Animal Behavior and Reproduction
  • Ion channel regulation and function
  • Healthcare and Venom Research
  • Biochemical and Structural Characterization
  • Turtle Biology and Conservation
  • Species Distribution and Climate Change
  • Identification and Quantification in Food
  • Spider Taxonomy and Behavior Studies
  • Bat Biology and Ecology Studies
  • Genetic diversity and population structure
  • Chromosomal and Genetic Variations
  • Nicotinic Acetylcholine Receptors Study
  • Animal and Plant Science Education
  • Parasite Biology and Host Interactions
  • Wildlife Ecology and Conservation
  • Cellular transport and secretion
  • Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
  • Lepidoptera: Biology and Taxonomy
  • Bird parasitology and diseases
  • Erythrocyte Function and Pathophysiology
  • Aquaculture disease management and microbiota

Queen Saovabha Memorial Institute
2016-2025

Thai Red Cross Society
2016-2025

Kasetsart University
2016

Chulalongkorn University
1998-2010

Abstract Surveillance for Nipah virus (NV) was conducted in Thailand's bat population. Immunoglobulin G antibodies to NV were detected with enzyme immunoassay 82 of 1,304 bats. RNA found saliva and urine. These data suggest the persistence infection Thai

10.3201/eid1112.050613 article EN cc-by Emerging infectious diseases 2005-12-01

In Thailand, five species of Acanthosaura have been recorded so far, including armata from the southern region, A. cardamomensis eastern crucigera western lepidogaster northern region and phuketensis Phuket Island south-western region. However, comprehensive studies diversity patterns distribution are still lacking in some areas need further information for designating special conservation importance nature protection planning Thailand. aurantiacrista is a new long-horned lizard genus It...

10.3897/bdj.8.e48587 article EN Biodiversity Data Journal 2020-05-15

DNA barcodes of mitochondrial COI and Cytb genes were constructed from 54 specimens 16 species for identification. Intra- interspecific sequence divergence the gene (10 times) was greater than that (4 times), which suggests former may be a better marker latter delimitation in snakes. The barcode cut-off scores differed by more 3% between most species, minimum maximum intraspecific divergence. Clustering analysis indicated fell into monophyletic clades. These results suggest these could...

10.4238/2015.october.29.18 article EN Genetics and Molecular Research 2015-01-01

We describe a colorful and distinctively patterned, karst-dwelling pitviper, Trimeresurus kuiburi sp. nov., from the isolated, coastal massif of Khao Sam Roi Yot in Kui Buri District, Prachuap Khiri Khan Province, northern Peninsular Thailand. The new species, member ‘Cryptelytrops group’ sensu Malhotra & Thorpe (2004) morphologically genetically allied to kanburiensis T. venustus, differs all pitviper taxa by combination red/purple bands on green dorsum; white concave suborbital stripe...

10.11646/zootaxa.4974.2.4 article EN Zootaxa 2021-05-20

Abstract Despite recent progress in our understanding of diversity within the genus Trimeresurus Lacépède, 1804, subgenus Popeia Malhotra & Thorpe, 2004, distributed across most parts East and Southeast Asia, remains taxonomically challenging. We applied an integrative taxonomic approach including analyses morphological data four mitochondrial genes (12S 16S rRNA, cytochrome b , NADH dehydrogenase subunit 4), along with examination available type material, to address longstanding...

10.3897/vz.74.e113347 article EN cc-by Vertebrate Zoology 2024-04-04

Background — King cobras ( Ophiophagus hannah ) have been captive‐bred at Queen Saovabha Memorial Institute since 1996 to supply venom for antivenom production. Hematologic tests would be useful evaluating the health of snakes, however, basic hematologic data and morphology not described this species. Objective The purpose study was determine values evaluate light microscopic, cytochemical, electron microscopic characteristics king cobra blood cells. Methods Blood samples from 13 wild‐caught...

10.1111/j.1939-165x.2002.tb00290.x article EN Veterinary Clinical Pathology 2002-09-01

The monocled cobra (Naja kaouthia) is a medically important venomous snake in Southeast Asia. Its venom has been shown to vary geographically relation composition and neurotoxic activity, indicating vast diversity of the toxin genes within species. To investigate polygenic trait its locale-specific variation, we profiled compared gland transcriptomes N. kaouthia from Malaysia (NK-M) Thailand (NK-T) applying next-generation sequencing (NGS) technology.The were sequenced on Illumina HiSeq...

10.7717/peerj.3142 article EN cc-by PeerJ 2017-04-05

We describe a new species of karst-dwelling pitviper from Chumphon Province Peninsular Thailand, in the Isthmus Kra, based on morphological and molecular data (2427 bp cyt b, ND4 16S rRNA mitochondrial DNA genes). Morphologically, Trimeresurus kraensis sp. nov. is distinguished other congeners by following combination characters: dark/bottle-green dorsum with reddish-brown or purple crossbands; pale green venter lacking dark dots; stripes present lateral sides ventrals; internasals generally...

10.5852/ejt.2024.930.2489 article EN cc-by European Journal of Taxonomy 2024-03-27

Unlike the chromosome constitution of most snakes (2n=36), cobra karyotype shows a diploid number 38 with highly heterochromatic W and large morphologically different 2. To investigate process sex differentiation evolution between cobras, snakes, other amniotes, we constructed map Siamese (Naja kaouthia) 43 bacterial artificial chromosomes (BACs) derived from chicken zebra finch libraries using fluorescence in situ hybridization (FISH) technique, compared it those chicken, finch, amniotes....

10.1186/s12864-018-5293-6 article EN cc-by BMC Genomics 2018-12-01

Abstract Surveillance for lyssaviruses was conducted among bat populations in 8 provinces Thailand. In 2002 and 2003, a total of 932 bats 11 species were captured released after serum collection. Lyssavirus infection determined by conducting virus neutralization assays on samples. Of collected samples, 538 either hemolysed or insufficient volume, which left 394 suitable analysis. These samples included the following: Pteropus lylei (n = 335), Eonycteris spelaea 45), Hipposideros armiger 13),...

10.3201/eid1102.040691 article EN cc-by Emerging infectious diseases 2005-02-01

Background: Envenoming by snakebite is an important public health problem in rural tropics. Venomous snake families such as Elapidae and Viperidae frequently produce severe poisoning. Anti-venoms are not available for all venomous snakes of Thailand there need more development this field. Objective: We characterized the snakes’ distribution Thailand. Method: species described details including their identification, range, extraterritorial distribution. Result: Eighteen family summarized...

10.5372/1905-7415.0503.043 article EN Asian Biomedicine 2011-06-01

Daboia siamensis (Eastern Russell's viper) is a medically important snake species found widely distributed across Southeast Asia. Envenomings by this can result in systemic coagulopathy, local tissue injury and/or renal failure. While administration of specific antivenom an effective treatment for viper envenomings, the availability of, and access to, geographically-appropriate remains problematic many rural areas. In study, we determined binding neutralizing capability antivenoms...

10.1371/journal.pntd.0007338 article EN cc-by PLoS neglected tropical diseases 2019-10-23

A new species of the gekkonid lizard genus Cyrtodactylus Gray, 1827 is described on basis material collected in limestone caves at Khao Wong, Rayong Province, Thailand. It characterized by a slender body, elongate tail and digits, small number (12) rows dorsal tubercles, enlarged patch precloacal scales bearing only two pores. The second tropical Asian believed to be largely associated with cave environments twelfth thus far recorded from

10.58837/tnh.2.2.102853 article EN 2002-08-01

A new cave-dwelling species of Cyrtodactylus is described from Khao Sonk in Surat Thani Province, southern peninsular Thailand. The characterized by its slender body (snoutvent length to at least 80 mm) with a banded pattern, elongate tail and digits, low number (14) rows dorsal tubercles, absence precloacal groove, enlarged series femoral scales, all lacking pores. It the third recorded

10.11646/zootaxa.772.1.1 article EN Zootaxa 2004-12-14

The morphological variation, extended distribution, and sequence divergence of a recently described cobra Naja fuxi Shi et al., 2022 captured from mountainous areas in Thailand are evaluated by using molecular analyses. We investigated the genetic variation affinities 72 specimens genus mitochondrial DNA (cytochrome b control region) nuclear gene, C-mos. Morphological examination was conducted for 33 obtained northern, western, north-eastern regions, data on their natural history were...

10.3897/vz.73.e89339 article EN cc-by Vertebrate Zoology 2023-03-27

Abstract We describe a new species of pitvipers from Trang Province Thailand, near the Thailand–Malaysian border, based on morphological and molecular (2427 bp cyt b , ND4, 16S rRNA mitochondrial DNA genes) lines evidence. Morphologically, Trimeresurus ciliaris sp. nov. is distinguished its congeners by following combination characters: long papillose hemipenis; first supralabial nasal scale fused; three to four small supraocular scales; internasals not in contact; between formed fused...

10.3897/vz.73.e109854 article EN cc-by Vertebrate Zoology 2023-09-19

An understanding of snake venom pharmacokinetics is essential for determining clinical outcomes envenoming and developing therapeutic approaches to the treatment envenoming, especially regarding timing optimal dosage antivenom administration. Daboia siamensis (Eastern Russell’s viper) causes systemic coagulopathy severe hemorrhage including acute kidney injury. These toxic can be diminished by administration high quantities viper antivenom. This study aimed determine correlation between...

10.3390/toxins17010010 article EN cc-by Toxins 2024-12-29

A new cave-dwelling species of Cyrtodactylus is described from Chiang Mai Province in northern Thailand. dumnuii sp. nov. may be distinguished all other congeners by the possession a series enlarged femoral scales, disjunct precloacal and pores males (minute variably present females), relatively high number (18–22) closely spaced, regularly arranged dorsal tubercle rows, well-defined non-denticulate ventrolateral folds, transversely subcaudal plates, color pattern approximately six pairs...

10.11646/zootaxa.2570.1.2 article EN Zootaxa 2010-08-18

αδ-Bungarotoxins, a novel group of long-chain α-neurotoxins, manifest different affinity to two agonist/competitive antagonist binding sites muscle-type nicotinic acetylcholine receptors (nAChRs), being more active at the interface α-δ subunits. Three isoforms (αδ-BgTx-1-3) were identified in Malayan Krait (Bungarus candidus) from Thailand by genomic DNA analysis; them (αδ-BgTx-1 and 2) isolated its venom. The toxins comprise 73 amino acid residues 5 disulfide bridges, homologous...

10.1042/bcj20180909 article EN Biochemical Journal 2019-04-03

Abstract To better understand PBI-DdeI satellite DNA located in the centromeric region of python, molecular evolution analysis was conducted on 40 snake species. A ladder-like pattern bands with repetition 194–210 bp monomer observed 15 species using PCR. Molecular cloning performed to obtain 97 AT-rich sequences. Phylogenetic and network analyses showed three subfamilies sequences grouped species-specific clusters, suggesting rapid evolution. Slow found eight shared sequences, recent...

10.1038/s41598-019-51863-w article EN cc-by Scientific Reports 2019-10-29

Abstract Thailand has an abundance of venomous snakes. Among the neurotoxic family Elapidae, there are three species genus Naja (cobras), Bungarus (kraits), and king cobra Ophiophagus. Other Elapidae snakes in include sea Asian coral Calliophis. They have potent venoms but rarely bite humans. Tissue hemotoxic represented by Viperidae, subfamilies Viperinae Crotalinae. remain occupational hazard for farmers rubber tappers, causing serious morbidity only rare deaths, since competent treatment...

10.1093/milmed/163.5.310 article EN Military Medicine 1998-05-01
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