Probiotics Antimicrob Proteins
November 2024
Candida albicans (C. albicans) is the primary etiologic agent of vaginal candidiasis. Lactobacillus species are predominant in the vaginal microbiome; they inhibit the development of vaginal candidiasis by producing antimicrobial agents, such as lactic acid and hydrogen peroxide.
View Article and Find Full Text PDFSulfated steroids can act as a latent form of active free steroids, coexisting with them in biological specimens. To evaluate the metabolic significance of free and sulfated steroid species, a simultaneous analysis of eight free steroids [cholesterol, pregnenolone, 17α-hydroxypregnenolone, progesterone, 17α-hydroxyprogesterone, dehydroepiandrosterone (DHEA), testosterone, and 17β-estradiol] and four biologically relevant sulfated steroids was developed and validated, using selected-ion and multiple-reaction monitoring modes coupled to polarity-switching liquid chromatography/mass spectrometry (LC/MS). All steroids were separated on a reversed-phase phenyl column (50 mm × 2 mm, 3 μm) at a flow rate of 0.
View Article and Find Full Text PDFThis study investigated whether multiple bioactivity of terrein such as anti-inflammatory and anti-oxidant inhibits age-related inflammation by promoting an antioxidant response in aged human diploid fibroblast (HDF) cells. HDF cells were cultured serially for in vitro replicative senescence. To create the ageing cell phenotype, intermediate stage (PD31) HDF cells were brought to stress-induced premature senescence (SIPS) using hydrogen peroxide (H2 O2).
View Article and Find Full Text PDFPropyl gallate (PG) used as an additive in various foods has antioxidant and anti-inflammatory effects. Although the functional roles of PG in various cell types are well characterized, it is unknown whether PG has effect on stem cell differentiation. In this study, we demonstrated that PG could inhibit adipogenic differentiation in human adipose tissue-derived mesenchymal stem cells (hAMSCs) by decreasing the accumulation of intracellular lipid droplets.
View Article and Find Full Text PDFIntroduction: The chronic nature of diabetes mellitus (DM) raises the risk of oral complication diseases. In general, DM causes oxidative stress to organs. This study aimed to evaluate the cellular change of dental pulp cells against glucose oxidative stress by glucose oxidase with a high glucose state.
View Article and Find Full Text PDFIntroduction: The cytotoxicity of resin-based sealer is influential on the inflammatory reaction and cell survival for oral periapical cells. In this study, pachymic acid as an antioxidant was investigated for the improvement of bone disturbance against AH Plus (Dentsply DeTrey GmbH, Konstanz, Germany)-induced inflammation in MC-3T3 E1 cells.
Methods: AH Plus was prepared according to the manufacturer's instructions.
Introduction: Dental pulp functions include pulp cell activity involvement in dentin formation. In this study we investigated the age-related changes in dental pulp cells that may influence pulp cell activity for restoring pulp function.
Methods: Human dental pulp cells (HDPCs) were serially subcultured until spontaneously arrested.
Introduction: Peroxisome proliferator-activated receptor gamma (PPARγ) has well-known anti-inflammatory action in human dental pulp cells (HDPCs). The purpose of this study was to investigate whether the anti-inflammatory action of PPARγ involves in cellular cytoprotection and supports odontoblast differentiation under oxidative stress in HDPCs.
Methods: To simulate long-term oxidative stress, pulp cells were treated with 150 μmol hydrogen peroxide (H(2)O(2)) for 12 days.
In this study, a new lanostane triterpene glycoside (fomitoside-K) having biologically active molecules was isolated from a mushroom Fomitopsis nigra to test its anticancer activity on human oral squamous cell carcinomas (YD-10B). We focused on the effect of fomitoside-K on apoptosis, the mitochondria-mediated death pathway and the accumulation of reactive oxygen species (ROS) in YD-10B cells. Fomitoside-K could induce a dose and time-dependent apoptosis in YD-10B cells as characterized by cell morphology, cell cycle arrest, inhibition of survivin, activation of poly(ADP-ribose) polymerase (PARP), caspase-3, -9 and an increased expression ratio of Bax/Bcl-2.
View Article and Find Full Text PDFObjectives: To deliver the efficacy and safety of Ch-GNPs (Chitosan gold nanoparticles) conjugated anti-inflammatory molecules peroxisome proliferator activated receptor gamma (PPARγ) on implant surface titanium (Ti) to reduce implant-induced inflammation.
Materials And Methods: The Ch-GNPs were conjugated with the PPARγ cDNA through a coacervation process. Conjugation was cast over Ti surfaces by dipping, and cells were seeded on different sizes (6 × 6 × 0.
Objectives: The AH26 of epoxy resin-based sealer is used widely owing to its excellent physical characteristics but it induces oxidative stress and cytotoxicity at the periapical tissues. AH26 exhibited cytotoxicity towards MC-3T3-E1 cells, which resulted in mitochondria-mediated apoptosis. Peroxisome proliferator-activated receptor (PPARγ) has an anti-inflammatory effect in several tissue and cells, but its action of AH26-related inflammation is not completely understood.
View Article and Find Full Text PDFThe BamA protein of Escherichia coli plays a central role in the assembly of β-barrel outer membrane proteins (OMPs). The C-terminal domain of BamA folds into an integral outer membrane β-barrel, and the N terminus forms a periplasmic polypeptide transport-associated (POTRA) domain for OMP reception and assembly. We show here that BamA misfolding, caused by the deletion of the R44 residue from the α2 helix of the POTRA 1 domain (ΔR44), can be overcome by the insertion of alanine 2 residues upstream or downstream from the ΔR44 site.
View Article and Find Full Text PDFObjectives: PPARγ has an anti-inflammatory effect on LPS-induced pulpal inflammation by decreasing the expression of MMPs, ICAM-1 and VCAM-1. However, the anti-inflammatory mechanism of PPARγ on the cell adhesion molecules and their upper signal pathways has not been clarified in pulp cells. The aim of this study is to investigate the anti-inflammatory mechanism of PPARγ in pulpal inflammation.
View Article and Find Full Text PDFEmerging evidence suggests that oncogenes play an important role in the inflammatory reactions in cancer cells, but the precise molecular and cellular mechanisms linking the oncogenes to inflammation is unclear. This study examined the contribution of proto-oncogene c-myb to inflammation in MCF-7 breast cancer cells. An inflammatory response was elicited directly by the cells using an in vitro culture system whereby the cells were exposed to H(2) O(2) .
View Article and Find Full Text PDFIntroduction: Davallialactone, hispidin analogues derived from the mushroom Inonotus xeranticus, has antioxidant properties. This study examined whether the reactive oxygen species (ROS) removal activity of davallialactone affects the lipopolysaccharide (LPS)-induced anti-inflammatory activity in human dental pulp cells.
Methods: The LPS-induced formation of ROS was analyzed by using dichlorofluorescein diacetate with fluorescence-activated cell sorter, and the expression of inflammatory molecules in primary cultured human dental pulp cells was determined by immunoblotting.
Titanium is biocompatible with bodily tissues. However, the formation of ROS on the titanium surfaces might have negative response of the activity of the surroundings cells. Terrein was isolated from Penicullium sp.
View Article and Find Full Text PDFIntroduction: The cytotoxicity of AH26, a resin-based sealer, induces apoptosis in osteoblast cells. However, the apoptosis pathway is not completely understood. This study examined the apoptosis pathway and its regulation of AH26 through mitogen-activated protein kinase (MAPKs), which may play a role in reducing the cytotoxicity of AH26.
View Article and Find Full Text PDFThe ageing of an inevitable life function is an unavoidable regressive physical process. Peroxisome proliferator-activated receptors (PPARs) are members of the nuclear hormone receptor family. PPARgamma plays an important role in regulating several metabolic pathways.
View Article and Find Full Text PDFThis study was undertaken to assess the calcium absorption efficacy of Pleurotus eryngii (king oyster mushroom) in sawdust medium supplemented with starfish powder and to determine the effect of starfish powder as calcium supplement on growth, yield, spawn run and primordial germination of P. eryngii. Optimum calcination of starfish powder was achieved at the temperature ranging from 560.
View Article and Find Full Text PDFThis study examined whether c-myb acts as a survival molecule in aged cells. A previous in vitro ageing model suggested that aged cells have a higher cell capacity for survival after exposure to oxidative stress, which involves blockage of the translocation of Hsp60 from the mitochondria to the cytoplasm followed by SAPK/JNK inactivation, than young cells. In human diploid fibroblasts (HDFs), c-myb expression increased gradually with ageing, and this increase had a significant influence on the cell survival capacity after exposure to oxidative stress.
View Article and Find Full Text PDFThe stress-activated protein kinase/c-Jun N-terminal kinase (SAPK/JNK) pathway is a well-known senescence-related stress activated protein kinase. Multiple environmental stresses induce programmed cell death, such as apoptosis. Normal human diploid fibroblast (HDF) cells have a limited life span in vitro, halting proliferation after a fixed number of cell divisions.
View Article and Find Full Text PDFCell Biochem Funct
December 2008
Paired box gene 9 (Pax9) and c-myb are transcription factors that regulate the expression of the genes involved in mediating cell proliferation, resistance to apoptosis, and migration. However, the function of Pax9 in oral squamous cell carcinoma (OSCC) is virtually unknown. This study examined the anti-apoptotic roles of Pax9 and c-myb, and clarified interaction between the two genes in KB cells.
View Article and Find Full Text PDFThis study was conducted to find the optimum extraction condition of Gold-Thread for antibacterial activity against Streptococcus mutans using The evolutionary operation-factorial design technique. Higher antibacterial activity was achieved in a higher extraction temperature (R2 = -0.79) and in a longer extraction time (R2 = -0.
View Article and Find Full Text PDFCassia tora fiber supplement consisting of 2 g of soluble fiber extracted from Cassia semen (C. tora L.), 200 mg of alpha-tocopherol, 500 mg of ascorbic acid, and 300 mg of maltodextrin was formulated in a pack, and given to 15 type II diabetic subjects (seven men and eight women 57.
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