Intragastric free cancer cells may be attached to automatic staplers during anastomosis in patients with gastric cancer.

Background: Automatic staplers are often used to reconstruct the digestive tract during surgeries for gastric cancer. Intragastric free cancer cells adhering to automatic staplers may come in contact with the laparoscopic port area and progress to port site recurrence. This study aimed to investigate the presence/absence of cancer cells adhering to automatic staplers during gastric cancer surgery using cytological examinations.

Early-stage gastric cancer with solitary brain metastasis four years after curative surgery: a case report and literature review.

Brain metastasis post-curative gastrectomy for early-stage gastric cancer is extremely rare. We present herein, a case of solitary brain metastasis that developed 4 years post-curative surgery for early-stage gastric cancer. A 60-year-old man had early-stage gastric cancer 4 years prior to presentation and underwent laparoscopy-assisted distal gastrectomy with lymph node dissection.

p.F354L Germline Mutation in a Case of Multiple Gastrointestinal Tumors.

Serine/threonine kinase 11 () is known as a critical tumor-suppressor gene that is frequently mutated in a broad spectrum of human cancers. Among these, the p.F354L mutation of has been identified in sporadic colon or lung cancer cases.

Endoscopic self-expandable metal stent placement for malignant afferent loop obstruction caused by peritoneal recurrence after total gastrectomy.

Afferent loop obstruction (ALO) caused by cancer recurrence after total gastrectomy (TG) can be managed by either surgical or non-surgical treatment. The general condition of patients with recurrent gastric cancer is often poor, so a less invasive non-surgical treatment is desirable. We report the case of a 75-year-old male who had undergone TG for gastric cancer 6 months previously and who presented at our hospital with abdominal pain and vomiting.

First Principles Calculations Toward Understanding SERS of 2,2'-Bipyridyl Adsorbed on Au, Ag, and Au-Ag Nanoalloy.

First principles electrodyanmics and quantum chemical simulations are performed to gain insights into the underlying mechanisms of the surface enhanced Raman spectra of 22BPY adsorbed on pure Au and Ag as well as on Au-Ag alloy nanodiscs. Experimental SERS spectra from Au and Ag nanodiscs show similar peaks, whereas those from Au-Ag alloy reveal new spectral features. The physical enhancement factors due to surface nano-texture were considered by numerical FDTD simulations of light intensity distribution for the nano-textured Au, Ag, and Au-Ag alloy and compared with experimental results.

Gastric washing by distilled water can reduce free gastric cancer cells exfoliated into the stomach lumen.

Purpose: Intragastric free cancer cells in patients with gastric cancer have rarely been studied. The purpose of this study was to investigate the detection rate of intragastric free cancer cells in gastric washes using two types of solutions during endoscopic examination. We further clarified risk factors affecting the presence of exfoliated free cancer cells.

Comparison between endoscopic and laparoscopic removal of gastric submucosal tumor.

Background And Aim: A retrospective study was conducted to compare two resection methods, namely, endoscopic resection (ER) procedures (endoscopic submucosal dissection [ESD], endoscopic muscularis dissection [EMD], and endoscopic full-thickness resection [EFTR]) and laparoscopic resections (LR) (laparoscopic endoscopic cooperative surgery [LECS] and laparoscopic wedge resection).

Methods: Seventy-three patients who underwent ER (N = 33: ESD, N = 4; EMD, N = 15; EFTR, N = 14) or LR (N = 39: LECS, N = 16; wedge resection, N = 23) for gastric submucosal tumor (G-SMT) smaller than 50 mm were included in this study. Patient/tumor characteristics and intra/postoperative factors were compared between the ER and LR groups.

Establishment of pathological quantitative method for determining undifferentiated component ratio in patients with differentiated/undifferentiated mixed-type early gastric cancer and clinical significance of this ratio.

Purposes: The purpose of this study was to establish a pathological quantitative method for determining the undifferentiated components ratio (UCR) in patients with differentiated/undifferentiated mixed-type (Mixed-type) early gastric cancer (EGC) and to examine the clinical significance.

Methods: The subjects were 410 patients who underwent surgical resection for EGC with the invasion limited to m or sm1. Analysis 1: In 12 randomly selected patients with Mixed-type cancer, we calculated the area ratio and the ratio of the length ratio using ImageJ and analyzed the correlation between them.

Optical readout of hydrogen storage in films of Au and Pd.

For hydrogen sensor and storage applications, films of Au and Pd were (i) co-sputtered at different rates or (ii) deposited in a sequentially alternating fashion to create a layered structure on a cover glass. Peculiarities of hydrogen uptake and release were optically monitored using 1.3 μm wavelength light.

Laparoscopy-assisted full-thickness resection of the duodenum for patients with gastrointestinal stromal tumor with ulceration.

Introduction: Gastrointestinal stromal tumor (GIST) with ulceration may potentially disseminate into the peritoneal cavity after laparoscopic local wedge resection (full-thickness resection) when the intestinal wall is opened under the aeroperitoneum. To prevent this intraoperative tumor seeding, we developed laparoscopy-assisted full-thickness resection (LAFTR) of the duodenum for GIST with ulceration. Here, we present the preliminary results of LAFTR.

Au-Ag-Cu nano-alloys: tailoring of permittivity.

Precious metal alloys enables new possibilities to tailor materials for specific optical functions. Here we present a systematic study of the effects of a nanoscale alloying on the permittivity of Au-Ag-Cu metals at 38 different atomic mixing ratios. The permittivity was measured and analyzed numerically by applying the Drude model.

Successful treatment of large adenoma extending close to the papilla in the duodenum by laparoscopy-assisted pancreas-sparing duodenectomy.

A 54-year-old man had a 65-mm infrapapillary, circular, and laterally spreading tubular adenoma in the distal second and proximal third parts of the duodenum. The papilla was 15 mm from the proximal margin of the tumor. Because the patient requested organ-preserving laparoscopic surgery, we conducted laparoscopy-assisted pancreas-sparing duodenectomy (LAPSD).

Laparoscopic Repair of Internal Transmesocolic Hernia of Transverse Colon.

Introduction. Internal hernias are often misdiagnosed because of their rarity, with subsequent significant morbidity. Case Presentation.

Preoperative vs Postoperative Eradication of Helicobacter pylori in 150 Patients with Gastric Cancer: A Randomized Controlled Trial.

Background: The Maastricht, Asia-Pacific consensus guidelines strongly recommend eradication of Helicobacter pylori in patients who have a history of gastric cancer. This open-label, single-center, randomized controlled trial was conducted to investigate the appropriate timing of eradication for patients undergoing gastrectomy.

Study Design: One hundred and fifty patients scheduled to undergo gastrectomy were allocated to either a preoperative or a postoperative group.

Laparoscopy-assisted transduodenal excision of superficial non-ampullary duodenal epithelial tumors.

Introduction: Transduodenal excision (transduodenal submucosal dissection) is an alternative to pancreaticoduodenectomy for the treatment of benign and low-grade malignant tumors of the duodenum. However, laparoscopic transduodenal excision or laparoscopy-assisted transduodenal excision (LATDE) of such tumors has been rarely reported. In this paper, we present the preliminary results of LATDE in patients with superficial non-ampullary duodenal epithelial tumors.

Identification of factors involved in recovery of heat-injured Salmonella Enteritidis.

Proteins and genes involved in the recovery of heat-injured Salmonella Enteritidis were investigated. Salmonella Enteritidis cells cultured overnight in tryptic soy broth (TSB; nonselective medium) were suspended in citric acid-disodium hydrogen phosphate buffer (pH 6). After heat treatment at 55 degrees C for 15 min, the culturable counts measured by tryptic soy agar (TSA; nonselective medium) decreased from 10(8) to 10(7) CFU/ml.