Fast-Swelling Tamarind Xyloglucan/PVA Hydrogels with Interconnected Macroporous Structures for Biomedical Applications.

This work demonstrates the preparation of fast-swelling hydrogels based on poly(vinyl alcohol) (PVA) and tamarind xyloglucan (XG), utilizing freeze-drying to achieve an interconnected macroporous structure. Although XG is non-toxic and abundant, it has poor mechanical properties. Therefore, XG was mixed with PVA and crosslinked with citric acid (CA).

Non-linear oral bioavailability and clinical pharmacokinetics of high-dose ethanolic extract: relevant dosage implications for COVID-19 treatment.

Aim: Insufficient quality control and limited dissolution of extract capsules restricts their bioavailability and hinder the clinical use for treating mild coronavirus disease 2019 (COVID-19) patients.

Objective: This study aims to investigate pharmacokinetics and safety of high-dosage ethanolic extract (equivalent to 180 or 360 mg/day of andrographolide), relevant dosages used for mild COVID-19 treatment.

Methods: An open-label, single-dose, and repeated-dose conducted in healthy volunteers.

Establishment of Biobank and Patient-Derived Xenograft of Soft Tissue and Bone Tumors.

Soft tissue and bone tumors are rare, and their low frequency and diverse histological types make conducting large-scale clinical trials challenging. Patient-derived xenografts (PDX), entailing implantation of cancer specimens in immunocompromised mice, are emerging as a valuable translational model because PDX keeps the original tumors' character and drug sensitivity. We sequentially transplanted 166 surgical and biopsy specimens from orthopedic surgeries, including 138 soft tissue and bone tumors (81 malignant, 23 intermediate, and 34 benign), 16 metastatic bone tumors, 9 hematological malignancies, and 3 non-tumor tissues.

Expression and purification of recombinant tilapia lake virus segment 4 protein and its in-vitro biological activity for potential use in vaccine development.

Tilapia lake virus (TiLV) disease is highly contagious and causes substantial mortality in tilapia. Currently, no effective treatments or commercial vaccines are available to prevent TiLV infection. In this study, TiLV segment 4 (S4) was cloned into the pET28a(+)vector and transformed into Escherichia coli BL21(DE3).

SoxR-dependent regulation of sodA1 and its impact on Stenotrophomonas maltophilia survival under external oxidative stress.

Stenotrophomonas maltophilia is an emerging global opportunistic pathogen that causes nosocomial infections. We demonstrated that the superoxide stress-sensing transcriptional regulator SoxR directly modulated the expression of an operon encompassing sodA1 (encoding manganese-containing superoxide dismutase) and fre (encoding putative flavin reductase) by directly binding to the operator site, which was located between the - 35 and -10 motifs of the sodA1 promoter. It is known that upon exposure to the superoxide generators/redox-cycling drugs, the SoxR, which is bound to the operator site, became oxidized.

Lutein derived from Xenostegia tridentata exhibits anticancer activities against A549 lung cancer cells via hyaluronidase inhibition.

Hyaluronidase has been emerging as a potential target for cancer treatment. Herein, the anticancer effects against A549 NSCLC cells and hyaluronidase inhibitory activity of the ethanol extract of Xenostegia tridentata (L.) D.

Associations of chronic liver disease and liver cancer with glyphosate and its metabolites in Thailand.

Glyphosate [N-(phosphonomethyl) glycine], a systemic herbicide, is used globally (825 million kg/year) in 750+ formulations. The International Agency for Research on Cancer classified glyphosate is a probable human carcinogen (Group 2A), but epidemiological studies have been lacking for its association with liver cancer and chronic liver disease. We analyzed urine specimens from 591 patients with newly diagnosed liver cancer, chronic liver disease (CLD), and healthy individuals from five different medical centers between 2011 to 2016 in Thailand.

Effects of particulate air pollution on BPDE-DNA adducts, telomere length, and mitochondrial DNA copy number in human exhaled breath condensate and BEAS-2B cells.

Traffic-related particulate matter (PM) and polycyclic aromatic hydrocarbons (PAHs) have been linked to respiratory diseases and cancer risk in humans. Genomic damage, including benzo[a]pyrene diolepoxide (BPDE)-DNA adducts as well as alterations in telomere length (TL) and mitochondrial DNA copy number (mtDNA-CN) are associated with respiratory diseases. This study aimed to investigate the association between exposure to traffic-related particulate pollutants and genomic damage in exhaled breath condensate (EBC) in human subjects and a bronchial epithelial cell line (BEAS-2B).

Tyrosinase Inhibitory Properties of Compounds Isolated from Roots.

A comprehensive phytochemical investigation of root extract led to the isolation of two new geranylated xanthones ( and ), one new geranylated flavone (), one new flavanone (), and one unique benzopyran (), along with 16 known compounds. Structures of the new compounds were elucidated by a combination of spectroscopic and computational methods. Two different types of compounds, flavone and arylbenzofuran , displayed the most potent antityrosinase activity with IC values of 1.

Bi(OTf)-Catalyzed Cascade Cycloaddition-Decarbonylation--Deoxygenative Aromatization between 2-Arylisatogens and Styrenes: Unveiling a Synthesis of 2,4-Diarylquinolines.

An unprecedented Bi(OTf)-catalyzed reaction between 2-arylisatogens and vinylarenes to yield 2,4-diarylquinolines is reported. The transformation occurred via a Bi-coordination to the embedded anionic nitrone oxygen, which induced a regiospecific stepwise formal [4 + 2]-cycloaddition with vinylarenes to yield a strained tricyclic intermediate, which subsequently extruded gaseous carbon monoxide. -Deoxygenative aromatization ensued to produce 2,4-diarylquinolines.

Efficacy of chitosan root canal medicament against cross-kingdom dual-species biofilm of Candida albicans and Enterococcus faecalis in an in vitro root-canal model.

Infection of the root canals with cross-kingdom biofilm of Candida albicans (C. albicans) and Enterococcus faecalis (E. faecalis) causes more inflammation and is resistant to conventional medication.

Unveiling mitochondria as central components driving cognitive decline in alzheimer's disease through cross-transcriptomic analysis of hippocampus and entorhinal cortex microarray datasets.

Alzheimer's disease (AD) is a prevalent neurodegenerative disorder characterized by symptoms such as memory loss and impaired learning. This study conducted a cross-transcriptomic analysis of AD using existing microarray datasets from the hippocampus (HC) and entorhinal cortex (EC), comparing them with age-matched non-AD controls. Both of these brain regions are critical for learning and memory processing and are vulnerable areas that exhibit abnormalities in early AD.

16S rRNA methyltransferase KsgA contributes to oxidative stress and antibiotic resistance in Pseudomonas aeruginosa.

Ribosomal RNA (rRNA) modifications are involved in multiple biological processes. KsgA is a 16S rRNA adenine dimethyltransferase that methylates at the adenines 1518 and 1519 (A1518/1519) positions, which are located near the ribosome decoding center. These methylations are conserved and important for ribosome biogenesis and protein translation.

CD47 and Calreticulin Expression in Breast Cancer Subtypes and Anti-CD47 Inhibitory Effects in Macrophage-mediated Phagocytosis.

Background/aim: Macrophage-mediated cancer immune evasion is modulated by the balance between "the cluster of differentiation 47 (CD47), an anti-phagocytic signal" and "calreticulin (CALR), a pro-phagocytic signal". CD47 is highly expressed in various types of cancer. However, the expression profiles of CD47 and CALR in breast cancer, especially in different hormone receptor subtypes, and the effects of CD47 blockade in macrophage-mediated therapy are not well understood.

Unraveling the mechanism of the anticancer potential of emodin using 2D and spheroid models of A549 cells.

The increasing global cancer burden necessitates the development of new treatment options. Herbal medicine offers a viable alternative to conventional cancer treatments. Numerous studies have shown that 3-dimensional (3D) cell culture more accurately represents tumor characteristics in vivo.

Ultrasonography for non-invasive sex identification and reproductive assessment in Nile tilapia ().

Sex identification and the selection of monosex male tilapia are crucial for tilapia aquaculture. In this study, we evaluated the application of ultrasonography as an alternative procedure for sex identification and reproductive assessment in Nile tilapia (). Ultrasonography was performed on 23 fish weighing 232-1,281 g to capture longitudinal and transverse images of the ovaries and testes.

ANKRD1 Promotes Breast Cancer Metastasis by Activating NF-B-MAGE-A6 Pathway.

Early detection and surgical excision of tumors have helped improve the survival rate of patients with breast cancer. However, patients with metastatic cancer typically have a poor prognosis. In this study, we propose that ANKRD1 promotes metastasis of breast cancer.

Chemical profile and biological activities of Lysiphyllum binatum (Blanco) de Wit.

Lysiphyllum binatum (Blanco) de Wit in the Fabaceae family, despite its traditional medicinal uses, has not been the subject of prior scientific inquiry into its chemical and biological profile. The dichloromethane and MeOH extracts of its roots exhibited notably similar antioxidant activity, while the dichloromethane extract of the vine stems showed aromatase inhibition. This study aimed to identify the bioactive components responsible for these activities.

Cascade Cyclization of -(2-Acyl-1-ethynyl)benzaldehydes with Amino Acid Derivatives: Synthesis of Indeno[2,1-]pyran-3-ones and 1-Oxazolonylisobenzofurans via the Erlenmeyer-Plöchl Azlactone Reaction.

A highly regioselective divergent approach is reported for the synthesis of both indeno[2,1-]pyran-3-one and 1-oxazolonylisobenzofuran derivatives using the Erlenmeyer-Plöchl azlactone (EPA) reaction. This approach involves the synthesis of -(2-acyl-1-ethynyl)benzaldehydes, which reacted with various amino acids. Reaction with -acylglycines resulted in the formation of indeno[2,1-]pyran-3-ones, involving the sequential formation of two C-C bonds and two C-O bonds.

Grewiifopenes A-K, bioactive clerodane diterpenoids from Casearia grewiifolia Vent.

Eleven novel clerodane-type diterpenoids, grewiifopenes A-K (1-4 and 12-18), along with nine known compounds (5-11, 19, and 20) were purified from the dichloromethane extract of the twigs and stems of Casearia grewiifolia Vent. (Salicaceae). Their spectroscopic data, including the NMR, HRESIMS, and electronic circular dichroism calculations were employed to completely characterize and elucidate the chemical structures and absolute configurations.