Hydrogen isotope separation at exceptionally high temperature using an unsaturated organometallic complex.

A new approach for hydrogen isotope separation using an unsaturated organometallic complex was proposed. Adsorption measurements of [Mn(dppe)(CO)(N)](BArF) (Mn-dppe) (dppe = 1,2-bis(diphenylphosphino)ethane, BArF = B[CH(3,5-CF)]) using H and D revealed a significant difference in the adsorption enthalpy of H/D at much higher room temperatures than in previous studies, with D molecules being more strongly adsorbed on unsaturated metal sites. Mixed gas adsorption isotherms were calculated at each temperature using IAST, and it was predicted that D uptake was much larger than H uptake.

Introduction of substituents for tuning the redox properties of benzoate-bridged paddlewheel diruthenium(II,II) complexes: what does the OH group bring?

Benzoate-bridged paddlewheel diruthenium(II,II) complexes ([RuII,II2(RArCO)(L)] (L = axial ligand); [RuII,II2]) exhibit reversible redox activity involving the oxidized species [RuII,III2]. The redox activity can be finely tuned over a broad potential range by altering the substituent R on the benzoate-bridging ligand RArCO. The electronic contributions of the substituents R depend on their type and position, as was empirically demonstrated by Hammett for substituents at the - and -positions.

Correction: Post-synthetic molecular modifications based on Schiff base condensation reactions for designing functional paddlewheel diruthenium(II,II) complexes.

Correction for 'Post-synthetic molecular modifications based on Schiff base condensation reactions for designing functional paddlewheel diruthenium(II,II) complexes' by Chisa Itoh , , 2024, , 444-448.

Post-synthetic molecular modifications based on Schiff base condensation reactions for designing functional paddlewheel diruthenium(II,II) complexes.

A new synthetic route for constructing functional paddlewheel diruthenium(II,II) complexes ([RuII,II2]) was developed by utilizing Schiff base condensation reactions of formyl-substituted benzoate-bridged [RuII,II2] complexes with various aromatic monoamines under mild conditions. Cyclic voltammetry and DFT calculations revealed that the attached Schiff base groups significantly affected the electronic states of the resulting [RuII,II2] complexes.

[Case of giant liver cyst with angiogenesis mimicking hemangioma that was difficult to differentiate from cystadenocarcinoma of the liver].

The patient was a 72-year-old man who had a history of hepatic cyst, which had, however, not been followed up. It was noted that he had internal hemorrhage in the hepatic cyst as well as a contrast-enhanced tumorous lesion in the cystic wall. Further detailed examination could not rule out hepatic cystadenocarcinoma or cystadenoma, so a right hepatic lobectomy was performed.

Anal function during pregnancy and postpartum after ileal pouch anal anastomosis for ulcerative colitis.

Purpose: Total proctocolectomy and ileal pouch anal anastomosis (IPAA) is now a common procedure for ulcerative colitis (UC). Moreover, it has been reported that fertility is preserved in women who undergo this procedure, many of whom can experience normal delivery.

Methods: We assessed the perinatal outcomes and changes in anal function in four women, aged from 27 to 35 years, who gave birth after undergoing IPAA for UC.

Octreotide in control of multiple liver metastases from gastrinoma.

The somatostatin analogue octreotide was effective in controlling systemic effects related to multiple liver metastases from a gastrinoma. A 61-year-old man underwent distal gastrectomy for gastrinoma in the duodenum, because a curative resection was not feasible due to metastases found in paraaortic lymph nodes during operation. Multiple liver metastases, associated with an increase in serum gastrin concentration, were found by magnetic resonance imaging 16 months after the operation.

Increased expression of HIP/PAP and regenerating gene III in human inflammatory bowel disease and a murine bacterial reconstitution model.

Although microorganisms play a role in gut inflammation, it remains uncertain which epithelial genes are expressed in response to luminal flora and whether these molecules are also involved in pathologic mucosal inflammation. Germ-free mice were orally challenged with a bacterial suspension prepared from conventionally housed mice (bacterial reconstitution). Thereafter, the differential gene expression in gut epithelial cells was identified by differential display.

Surgical treatment of chronic intestinal pseudo-obstruction: report of three cases.

We report the cases of three patients with chronic intestinal pseudo-obstruction (CIP) whose quality of life (QOL) was improved by palliative surgery in combination with home parenteral nutrition (HPN). Loop enterostomy and shortening of the gastrointestinal tract was performed with good results in all three patients to relieve abdominal distension that was progressive despite treatment with prokinetic drugs. Oral intake was also improved after surgical treatment in one patient who underwent massive resection of the jejunoileum.

Epithelial induction of serum amyloid A in experimental mucosal inflammation.

We previously demonstrated epithelial induction of serum amyloid A in germ-free mice inoculated with luminal bacteria. The aims of the present study were to investigate the role of luminal bacteria and mucosal inflammation in epithelial expression of this acute-phase protein using germ-free and dextran sulfate sodium-treated mice in vivo and HT29 cells in vitro. Immunoreactivity for serum amyloid A was detected in the epithelium of esophagus, stomach, duodenum and rectum regardless of the presence or absence of luminal bacteria.