Thioredoxin interacting protein (TXNIP) is a novel tumor suppressor that is down-regulated in several cancer tissues and tumor cell lines. Overexpression of TXNIP causes cell cycle arrest at the G1/S checkpoint in the hepatocellular carcinoma cell line HuH-7. TXNIP contains putative phosphorylation sites, but the effects of its phosphorylation have not been fully characterized.
View Article and Find Full Text PDFD‑allose is a rare sugar which has been shown to have growth inhibitory effects in several kinds of malignancies. However, the effect of D‑allose on lung cancer progression has not been previously studied. To investigate the antitumour effect of D‑allose in lung cancer cells and its mechanism, human non-small cell lung cancer (NSCLC) cell lines (squamous cell carcinomas: EBC1 and VMRC‑LCD; adenocarcinomas: A549, HI1017, RERF‑LC‑A1 and NCI-H1975) were treated with D‑allose (50 mM) with or without cisplatin (5 µM).
View Article and Find Full Text PDFCYP701B1 of the moss, Physcomitrella patents, might be a unique cytochrome P450 having the ent-kaurene oxidase (KO) activity occurring in nonvascular plant. Phylogenetic analysis suggested that the gene encoding CYP701B1 was diverged from a common ancestral gene encoding KO of vascular plants. CYP701B1 expressed in Phichia yeast microsomes was purified and characterized.
View Article and Find Full Text PDFAlthough various parts of J. curcas (Jatropha curcas L., Euphorbiaceae) have long been used as traditional folk medicines for their antiviral, analgesic, and/or antidotal efficacies, we are the first to investigate the role of anti-carcinogenicity of isoamericanol A (IAA) from the seed extract.
View Article and Find Full Text PDFGlucose is a major energy source for mammalian cells and is transported into cells via cell-specific expression of various glucose transporters (GLUTs). Especially, cancer cells require massive amounts of glucose as an energy source for their dysregulated growth and thus over-express GLUTs. d-allose, a C-3 epimer of d-glucose, is one of rare sugars that exist in small quantities in nature.
View Article and Find Full Text PDFJ Hepatobiliary Pancreat Sci
January 2016
Background: Pretransplant restoration of islets damaged during isolation remains to be solved. In this study, we examined the effect of D-allose on islets isolated from rat pancreata prior to islet transplantation.
Methods: Rat islets isolated from fresh pancreata were cultured overnight in Roswell Park Memorial Institute 1640 solution in the absence (group 1) or presence (group 2) of D-allose.
Background: The fundamental cause of overweight and obesity is consumption of calorie-dense foods. We have introduced a zero-calorie sweet sugar, d-psicose (d-allulose), a rare sugar that has been proven to have strong antihyperglycemic and antihyperlipidemic effects, and could be used as a replacement of natural sugar for the obese and diabetic subjects.
Aim: Above mentioned efficacy of d-psicose (d-allulose) has been confirmed in our previous studies on type 2 diabetes mellitus (T2DM) model Otsuka Long-Evans Tokushima Fatty (OLETF) rats with short-term treatment.
Oxidative stress modulates the osteoclast differentiation via redox systems, and thioredoxin 1 (Trx) promotes the osteoclast formation by regulating the activity of transcription factors. The function of Trx is known to be regulated by its binding partner, thioredoxin-interacting protein (TXNIP). We previously reported that the expression of TXNIP gene is strongly induced by a rare sugar D-allose.
View Article and Find Full Text PDFThe effect of isoliquiritigenin (ISL), a component of licorice, on the voltage-dependent, ultra-rapidly activating delayed-rectifier K(+) current (IKur) was examined in H9c2 cells, a cell-line derived from rat cardiac myoblasts. IKur was recorded using the whole-cell patch clamp method with a pipette solution containing 140 mM K(+). Depolarizing voltage pulses of 200-ms duration were given with 10-mV steps every 10 s from -40 mV holding potential.
View Article and Find Full Text PDFWe report the anesthetic management of two cases with placenta percreta that caused massive hemorrhage during cesarean section. These pregnant women, with a past history of cesarean section underwent elective operation after being diagnosed with total placenta previa and suspected adhesion of the placenta. The placenta percreta became evident after laparotomy and the patients underwent total hysterectomy after infant expulsion.
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