112 results match your criteria: "Chulalongkorn University Bangkok Thailand.[Affiliation]"

Progressive colonic stenosis in an infant: Successful treatment with endoscopic balloon dilation.

JPGN Rep

November 2024

Department of Pediatrics, Division of Gastroenterology, Center of Excellence in Thai Pediatric Gastroenterology, Hepatology and Immunology (TPGHAI), King Chulalongkorn Memorial Hospital, The Thai Red Cross Society, Faculty of Medicine Chulalongkorn University Bangkok Thailand.

Acquired colonic stenosis is extremely rare in infants and surgical resection is the mainstay of treatment. Endoscopic balloon dilation has shown success in treating bowel stenosis from inflammatory bowel disease but its application in infants with colonic strictures of other origin has not been widely explored. We report a 4-week-old male infant who developed significant abdominal distension due to progressive colonic stenosis, occurring 2 weeks following balloon valvuloplasty for his severe valvular pulmonary stenosis.

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Article Synopsis
  • Perilla seed oil, rich in alpha-linolenic acid (ALA), is studied for its potential health benefits, especially regarding neurodegenerative diseases and inflammation.
  • In an experiment with male C57BL/6 mice, different doses of perilla seed oil were administered alongside a fish oil diet to observe effects on Parkinson's disease induced by rotenone.
  • High doses of perilla oil led to significant health improvements, including reduced inflammation and neurodegeneration, as well as enhanced gut microbiota diversity, indicating its promise for treating intestinal and neurological issues related to Parkinson’s disease.
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The taxonomy of the pill millipede genus Verhoeff, 1906, which is restricted to Indochina and currently comprises six described species, is refined and updated. An integrative taxonomic approach was employed that combines morphological examination with DNA barcoding using the cytochrome oxidase subunit I (COI) gene for species identification and delineation. The first objective was to confirm the identity of (Pocock, 1889), a charismatic species known as the "candy pill millipede" due to its vivid coloration, based on specimens collected near the type locality in Myanmar.

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Introduction: Direct oral anticoagulants (DOACs) become the recommended treatment over vitamin K antagonists (VKA) in patients with non-valvular atrial fibrillation (AF). However, their effectiveness in reducing cognitive impairment and dementia compared to VKA remains unclear.

Methods: A systematic literature search was conducted on Ovid MEDLINE, EMBASE, and Cochrane Database.

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Integrative taxonomy reveals two new giant pill-millipedes of the genus Gray, 1832 from eastern Thailand (Diplopoda, Sphaerotheriida, Zephroniidae).

Zookeys

September 2024

Zoological Research Museum Alexander Koenig, Leibniz Institute for the Study of Biodiversity Change (LIB), Adenauerallee 160, D-53113 Bonn, Germany Zoological Research Museum Alexander Koenig, Leibniz Institute for the Study of Biodiversity Change (LIB) Bonn Germany.

Article Synopsis
  • Scientists collected a lot of millipedes in eastern Thailand from 2014 to 2023 and found two new species.
  • These new species are different from others because of their special colors and shapes.
  • The study also looked at their genes and showed that these new species only live in eastern Thailand, making them unique to that area.
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Background: Stroke and traumatic intracranial hemorrhage (tICH) are major causes of disability worldwide, with stroke exerting significant negative effects on the brain, potentially elevating tICH risk. In this study, we investigated tICH risk in stroke survivors.

Methods And Results: Using relevant data (2017-2019) from Taiwan's National Health Insurance Research Database, we conducted a population-based retrospective cohort study.

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The taxonomy of subulinid snails in Myanmar has been evaluated, resulting in the recognition of 40 species and subspecies across nine genera: , , , , , , , , and . Nine species are re-described based on recently collected specimens, and two new species, Man & Panha, from Mandalay Region and Man & Panha, from Shan State are introduced. The genitalia and radula of was studied for the first time.

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Nanocrystalline carbon materials exhibit promising potential for sustainable and high-performance applications in electronics, energy storage, and environmental technologies. While sugars are abundant and renewable, converting them to graphitic carbon usually requires high temperature treatment. Here, we present a groundbreaking approach for synthesizing nanocrystalline carbon from readily available sugars such as glucose, fructose, and sucrose at ambient pressure and temperature.

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Revision of Cameron (Hymenoptera, Braconidae, Rogadinae) with six new species from India and Thailand.

Zookeys

July 2024

Integrative Insect Ecology Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand.

Article Synopsis
  • The genus Cameron, from the Indo-Malayan region, is reviewed and now includes six new species from Thailand and one from India, increasing the total to 19 known species.
  • A key for species identification is provided, along with a four-gene ML tree that includes the new species.
  • The study documents sexual color dimorphism in males and includes detailed illustrations of the species and their distinguishing black marking patterns.
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Background: Sex disparities exist in cardiometabolic diseases. Metabolomic profiling offers insight into disease mechanisms, as the metabolome is influenced by environmental and genetic factors. We identified metabolites associated with sex and determined if sex-associated metabolites are associated with incident stoke, incident coronary heart disease, prevalent hypertension, and prevalent chronic kidney disease.

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Background And Aims: Knee support, frequently made from sponge, is used to reduce injury. Sponge has less elasticity and durability compared with natural rubber. To our knowledge, there was no study that demonstrated the effectiveness of natural rubber and sponge in prevention of injury in children with bleeding disorders.

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This paper reassesses the taxonomy and systematics of 11 arboreal snail species in the genus from Vietnam, Cambodia, Indonesia and Laos ( Wang, 2019, Fruhstorfer, 1905, Smith, 1893, Möllendorff, 1898, Möllendorff, 1900, Thach, 2020, Möllendorff, 1900, Thach, 2020, Möllendorff, 1900, Fulton, 1896, and Huber, 2015). The taxonomic validity of each species is supported by a phylogenetic analysis of mitochondrial COI and 16S rRNA gene fragments from 17 ingroup taxa. was found to comprise two populations from two distant localities, one from Mount Singgalang, West Sumatra, Indonesia and the other from southern Vietnam.

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A new species of the genus Peters, 1861, subgenus Vachon, 1980 from Thailand (Scorpiones, Scorpiopidae).

Zookeys

March 2024

BYG Taxa, 382 rue des Guillates, 71570 Romanèche-Thorins, France BYG Taxa Romanèche-Thorins France.

A new species, Scorpiops (Euscorpiops) krachan, belonging to the family Scorpiopidae Kraepelin, 1905 is described based on three adult males and one adult female collected in the Kaeng Krachan National Park, Phetchaburi Province, Thailand. The new species presents most features exhibited by scorpions of the subgenus Euscorpiops and can be characterized notably by a very small size, a sexual dimorphism strongly marked with male pedipalps elongated, a distinct trichobothrial pattern and other morphological features. This new taxon may represent one endemic element for the scorpion fauna of Thailand.

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The comprehensive control of hydroxyapatite (HAp), involving morphological and structural variations, particle sizes, and defect formations, has garnered considerable attention for its versatile functionalities, rendering it applicable in diverse contexts. This work examined the shape, structure and optical characteristics, and defect formation in hydroxyapatite (HAp) extracted from Nile tilapia () scales with various pre-treatments through experiments and density functional theory (DFT) calculations. Utilizing scanning electron microscopy, our findings revealed that dried fish scales (FS-D) exhibited a layered pattern of collagen fibers, while boiled fish scales (FS-B) had smoother surfaces and significantly reduced collagen content.

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Seven new species of the segmented spider genus (Mesothelae, Liphistiidae) in Thailand and Myanmar.

Zookeys

January 2024

Center of Excellence in Entomology and Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand.

Seven new species of the primitive segmented spider genus are described and assigned to species groups based on characters of the male palp and vulva plate. The group includes Sivayyapram & Warrit, (♂♀) from southeastern Myanmar, Sivayyapram & Warrit, (♀) from northwestern Thailand, and Sivayyapram & Warrit, (♀) from western Thailand; the group (Complex A) contains Sivayyapram & Warrit, (♂♀), Sivayyapram & Warrit, (♂♀), Sivayyapram & Warrit, (♂♀), and Sivayyapram & Warrit, (♂♀) from central Thailand.

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The status of the indigenous Southeast Asian apple snails belonging to the genus is of concern due to their fast rate of population decline, possibly as a result of multiple factors including habitat loss or disturbance and the introduction of globally-invasive apple snails, spp. Conservation actions, including captive breeding of the native species, have been suggested as urgent remedial practices, but the lack of knowledge regarding the fundamental reproductive biology of indigenous spp. makes such practices difficult.

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Despite many reports detailing silk hydrogels, the development of composite silk hydrogels with homotypic and heterotypic silk nanoparticles and their impact on material mechanics and biology have remained largely unexplored. We hypothesise that the inclusion of nanoparticles into silk-based hydrogels enables the formation of homotropic and heterotropic material assemblies. The aim was to explore how well these systems allow tuning of mechanics and cell adhesion to ultimately control the cell-material interface.

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Introduction: Our simulation-based mastery learning (SBML) curriculum, delivered in person, has been shown to successfully train novices in structured esophagogastroduodenoscopy (EGD). SBML with virtual coaching (VC) has the potential to improve the effectiveness and efficiency of endoscopy training and expand access to trainees from around the world. We share our observations conducting an EGD training course using SBML with VC.

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The flexibility of protein structure plays a crucial role in enzyme stability and catalysis. Among the amino acids, glycine is particularly important in conferring flexibility to proteins. In this study, the effects of flexible glycine residues in 121 inulosucrase (LrInu) on stability and inulin profile were investigated through glycine-to-proline substitutions.

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A review of the anthidiine bees (Apoidea, Megachilidae) in Thailand.

Zookeys

December 2023

Center of Excellence in Biology and Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand.

Bees of the tribe Anthidiini (Apoidea: Megachilidae) are notable pollinators consisting of resin bees, wool-carder bees, and cleptoparasitic bees. Twelve anthidiine species were historically reported in Thailand, though the taxonomic information of the group was needed revising. In this study, 165 (97♀, 68♂) anthidiine bee specimens deposited at the Chulalongkorn University Natural History Museum, Thailand, were examined with material obtained from various museum collections.

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Managing mixed acid-base disorders can be diagnostically challenging, particularly when metabolic acidosis and metabolic alkalosis occur simultaneously. When dealing with metabolic alkalosis, a comprehensive approach involves taking a detailed medical history, assessing volume status, and performing urine chloride analysis. Routine calculation of the anion gap is important to identify masked wide anion gap metabolic acidosis.

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Name game conundrum: identical specific epithets in Microgastrinae (Hymenoptera, Braconidae).

Zookeys

November 2023

Integrative Insect Ecology Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Phaya Thai Road, Pathum Wan, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand.

It is a privilege to recognize a new species and immortalize it with a name. Taxonomists may use etymologies recalling the sampling locality, habitat, species morphology, people (actor, writer, singer, politician, scientist), culture (customs, beliefs), fictional characters (gods, demons, cartoons), brands, ancient names, and others. Naming a species is a creative act that allows scientists to express their love for nature.

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Objectives: To study the effectiveness of Sucralfate suspension oral rinse compared to normal saline alone for pain reduction and wound healing promotion in open oral surgical wounds. The primary outcome of this study was postoperative pain VAS score reduction. The secondary outcome was wound healing promotion based on wound grade and maximal wound length reduction.

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