• Journal of Gastric Cancer
• /
• 제14권3호
• /
• pp.164-172
• /
• 2014

Purpose: To evaluate the incidence, clinicopathological characteristics, treatment outcomes, prognostic factors, and survival of gastric cancer patients with bone metastases. Materials and Methods: Of 4,617 gastric cancer patients who were treated between 2001 and 2013, 176 patients with bone metastases were analyzed. Results: The incidence of bone metastasis was 3.8%. The most common histopathological subtype was adenocarcinoma (79%) with poor differentiation (60.8%). The median interval from the diagnosis to bone metastasis was 11 months. The median survival time after bone metastasis was 5.4 months. Factors that were associated with longer median survival times included the following: isolated bone metastasis (P=0.004), well-differentiated tumors (P=0.002), palliative chemotherapy (P=0.003), zoledronic acid treatment (P<0.001), no smoking history (P=0.007), and no metastatic gastric cancer at the time of diagnosis (P=0.01). On the other hand, high levels of lactate dehydrogenase (LDH) (hazard ratio [HR]: 1.86; P=0.015), carcinoembryonic antigen (CEA) (HR: 2.04; P=0.002), and carbohydrate antigen (CA) 19-9 (HR: 2.94; P<0.001) were associated with shorter survival times. In multivariate analysis, receiving zoledronic acid (P<0.001) and performance status (P=0.013) were independent prognostic factors. Conclusions: Smoking history, poor performance status, poorly differentiated adenocarcinoma, and high levels of LDH, CEA, and CA 19-9 were shown to be poor prognostic factors, while receiving chemotherapy and zoledronic acid were associated with prolonged survival in gastric cancer patients with bone metastases.

• 생약학회지
• /
• 제35권4호통권139호
• /
• pp.350-356
• /
• 2004

In a preliminary screening of plant extracts for the antigastritic and anti- Helicobacter pylori (H. pylori) actions in rats, the ethanol extract of Amomi Semen (AS) showed positive activity in HCl Ethanol-induced gastric lesions and H. pylori. Among the systematic fractions of hexane, chloroform, butanol and water, the most potent butanol fraction significantly reduced HCl, Ethanol-induced gastric lesions at the oral dose of 350 mg/kg. Also butanol fraction has an inhibitory effect on the growth of H. pylori $(MIC=1.43\;{\mu}g/mL)$. In pylorus ligated rats, butanol fraction showed decrease in the volume of gastric secretion and acid output, of which effects were stronger in other fractions. We isolated 6 subfractions by column chromatography. The protective effects of 6 subfractions of Amomi Semen were also significant in the HCl, Ethanol induced gastric lesion model. These results might suggest that they had inhibitory action in gastric lesion through inhibition of gastric acid secretion. Butanol fraction of AS can be applied as treatment of H. pylori. Butano fractions and ethanol extract of AS was carried out or the development of a new gastroprotective supplementary product.

• 대한약리학회지
• /
• 제31권3호
• /
• pp.313-321
• /
• 1995

위점막 손상에 미치는 영향에 관한 nicotine의 효과는 아직 정설이 없는 형편이다. 본 연구에서는 nicotine이 위점막 손상에 미치는 영향을 보기 위하여 nicotine (5 mg/kg, 10mg/kg)을 9일간 하루에 두번씩 위내 투여하였다. 위점막 손상은 gastrin (1.2 mg/kg)을 피하 주사함과 동시에 유문부결찰을 6시간 동안 시행하므로 야기시켰다. 그 결과 nicotine 투여군에서 현저한 위점막 손상의 감소를 보였다 (대조군의 50%). 이러한 nicotine의 위점막 보호 효과에 대한 기전을 추구하기 위하여 위관류 실험을 시행하였다. Nicotine은 기초 위산 분비에는 영향이 없었으나 gastrin으로 자극된 위산 분비를 현저히 감소시켰고, 이러한 반응은 nicotine 용량에 비례하였다. 이상의 결과로 보아 nicotine의 장기간 간헐적 투여는 gastrin 투여로 인한 위점막 손상에 보호 효과가 있으며, 이러한 효과는 gastrin으로 자극된 위산 분비를 억압하는 nicotine의 효과가 관련될 것으로 생각된다. 또한 nicotine의 위점막 손상 악화 효과를 관찰한 보고들을 고려하면 nicotine의 위점막 손상에 관한 효과는 nicotine의 투여 방법에 따라 전혀 다르게 나타날 수 있을 것으로 생각된다.

• Asian Pacific Journal of Cancer Prevention
• /
• 제13권5호
• /
• pp.1809-1817
• /
• 2012

Background: Gastric cancer is frequently lethal despite aggressive multimodal therapies, and new treatment approaches are therefore needed. Retinoids are potential candidate drugs: they prevent cell differentiation, proliferation and malignant transformation in gastric cancer cell lines. They interact with nuclear retinoid receptors (the retinoic acid receptors [RARs] and retinoid X receptors [RXRs]), which function as transcription factors, each with three subclasses, ${\alpha}$, ${\beta}$ and ${\gamma}$. At present, little is known about retinoid expression and influence on prognosis in gastric cancers. Patients and Methods: We retrospectively analyzed the expression of the subtypes RARa, $RAR{\beta}$, $RAR{\gamma}$, RXRa, $RXR{\beta}$, $RXR{\gamma}$ by immunohistochemistry in 147 gastric cancers and 51 normal gastric epithelium tissues for whom clinical follow-up data were available and correlated the results with clinical characteristics. In addition, we quantified the expression of retinoid receptor mRNA using real-time PCR (RT-PCR) in another 6 gastric adenocarcinoma and 3 normal gastric tissues. From 2008 to 2010, 80 patients with gastric cancers were enrolled onto therapy with all-trans-retinoic acid (ATRA). Results: RARa, $RAR{\beta}$, $RAR{\gamma}$ and $RXR{\gamma}$ positively correlated with each other (p < 0.001) and demonstrated significantly lower levels in the carcinoma tissue sections (p < 0.01), with lower $RAR{\beta}$, $RAR{\gamma}$ and RXRa expression significantly related to advanced stages (p < =0.01). Tumors with poor histopathologic grade had lower levels of RARa and $RAR{\beta}$ in different histological types of gastric carcinoma (p < 0.01). Patients whose tumors exhibited low levels of RARa expression had significantly lower overall survival compared with patients who had higher expression levels of this receptor (p < 0.001, HR=0.42, 95.0% CI 0.24-0.73), and patients undergoing ATRA treatment had significantly longer median survival times (p = 0.007, HR=0.41, 95.0% CI 0.21-0.80). Conclusions: Retinoic acid receptors are frequently expressed in epithelial gastric cancer with a decreased tendency of expression and RARa may be an indicator of a positive prognosis. This study provides a molecular basis for the therapeutic use of retinoids against gastric cancer.

• 한국식품저장유통학회지
• /
• 제12권2호
• /
• pp.184-189
• /
• 2005

젓갈은 전남 목포지역의 대형마트 및 가정에서 수집하였으며 오징어젓, 갈치속젓, 꼴뚜기젓, 멸치젓 등 10여종의 젓갈로부터 균을 분리하였다. 이들 분리 유산균 중 3균주가 인공위액과 인공담즙액에서 내성을 나타내었다. 이들 분리된 균주 중 생존력이 왕성한 3균주는 모두 인공위액에서 2시간, 인공담즙액에서 24시간 생존 가능하였다. 특히 유산균 ML 36, ML 128, ML 178 외 2종의 효모는 초기 생균수와 인공위액에서 2시간 배양 후 생균수의 변화가 거의 없어 가장 강한 내성을 나타내었다. 인공위액에서 분리된 균주의 생존율은 낮은 pH로 인하여 낮은 경향을 나타내었으나, 인공담즙액에 대해서는 높은 생존율을 나타내었다. 인공위액 및 인공담즙에 내성을 나타낸 3종의 유산균이 항생물질인 nicin, rifamycin, streptomycin, 그리고 tetracycline에 대하여 내성을 나타내었다. 또한 이들 분리 유산균은 병원성 미생물인 Listeria monocytogenes 대해 뚜렷한 항균 효과가 있는 것으로 나타났다.

• Biomolecules & Therapeutics
• /
• 제17권2호
• /
• pp.199-204
• /
• 2009

In this study we investigated the protective effects of rutin, a natural plant flavonoid, on HCl/ethanol-induced gastric lesions in rats. Rutin showed the antioxidant activities, the acid-neutralizing capacities, and the inhibitory effects on the growth of Helicobacter pylori (H. pylori.), which are equivalent to control compounds. In addition, rutin significantly inhibited HCl/ethanol-induced gastric lesions. Antigastritic action of rutin may be associated with the antioxidant activities, acid-neutralizing capacities, anti-H. pylori action, and the stimulation of mucus secretion. From these results, we could suggest that rutin may be useful for the treatment and/or protection of gastritis.

• Journal of Gastric Cancer
• /
• 제24권2호
• /
• pp.220-230
• /
• 2024

Purpose: Prevention of pancreas-related complications after gastric cancer surgery is critical. Polyglycolic acid (PGA) mesh reduces postoperative pancreatic fistula formation following pancreatic resection. However, the clinical efficacy of PGA mesh in gastric cancer surgery has not been adequately investigated. Materials and Methods: This retrospective study compared the short-term outcomes between two groups: patients who underwent minimally invasive R0 gastrectomy for gastric cancer with the use of a PGA mesh (PGA group) and those without the use of a PGA mesh (non-PGA group) at the Cancer Institute Hospital, Tokyo, between January 2019 and May 2023. Propensity score matching (PSM) was performed to adjust for the possible confounding factors. Results: A total of 834 patients were initially included, of whom 614 (307 in each group) remained after PSM. The amylase levels in the drained abdominal fluid on postoperative days 1 and 3 were similar between the PGA and non-PGA groups. The PGA group had a significantly lower incidence of pancreas-related complications of Clavien-Dindo grade ≥2 than that in the non-PGA group (6.8% vs. 2.9%, P=0.025). In subgroup analyses, the odds ratio for pancreas-related complications appeared to be better in the PGA group than in the non-PGA group in patients with American Society of Anesthesiologists Physical Status Classification score of 2 or 3, those operated via a laparoscopic approach, and those undergoing procedures other than proximal gastrectomy. Conclusions: The use of PGA mesh significantly reduced pancreas-related complications after minimally invasive surgery for gastric cancer and might thus benefit patients at risk of such complications.

• The Korean Journal of Physiology and Pharmacology
• /
• 제5권4호
• /
• pp.315-321
• /
• 2001

This study was aimed to evaluate the effects of quercetin and desferrioxamine on the development of the reflux esophagitis induced surgically, on gastric secretion and on lipid peroxidation which is a marker of oxidative stress. Omeprazole was used as a positive control drug. Omeprazole significantly and dose-dependently prevented the development of reflux esophagitis, but quercetin or desferrioxamine prevented only at high dose. Omeprazole significantly and dose-dependently inhibited the gastric acid secretion (gastric volume, pH and acid output), but quercetin or desferrioxamine did not inhibit. Malonyldialdehyde content, the end product of lipid peroxidation, increased significantly after the induction of reflux esophagitis. Omeprazole prevented lipid peroxidation. Quercetin and desferrioxamine inhibited the lipid peroxidation independent of their actions on gastric secretion. This result indicates that omeprazole confirmed preventing effect of rat reflux esophagitis, but quercetin and desferrioxamine inhibited esophagitis by reduction of lipid peroxidation irrespective of gastric acid secretion.

• 사상체질의학회지
• /
• 제2권1호
• /
• pp.189-197
• /
• 1990

In order to study on the effect of Volume of Gastric Juice Free acid, Total acid, and Anti-Ulceration, Jo gi pyeong yoe san Extract were administered to the Pylorus-Ligated Rats induced Shay's Ulcer. The results were as follows. 1. The effect upon Volume of Gastric Juice, Free Acid, and Total Acid of experimenting group with medicine, in contrast with Control Group and Pyeong yoe san Group, there was decreasing that it reveled Significant Value. 2. In the effect upon Shay's Ulcerlation, Jo gi pyeong yoe san Extract were decrease to the Ulcer Index that it reveled Significant Value. 3. Control Group and Pyeong yoe san Group were similar. According to the above results, Jo gi pyeong yoe san is assumed to have Anti-Ulcerlation.

• Biomolecules & Therapeutics
• /
• 제5권3호
• /
• pp.228-232
• /
• 1997

AU-164 was synthesized as a reversible gastric $H^+/K^+$ ATPase inhibitor, and its effects were tested in various systems. AU-164 inhibited rabbit gastric $H^+/K^+$ ATPase with an $IC_{50}$/ of 9 $\mu$M. On the other hand, AU-164 was a weak inhibitor for dog kidney $Na^+/K^+$ ATPasc, indicating the selectivity for gastric $H^+/K^+$ ATPase. The reversible property of the AU-164-induced inhibition of $H^+/K^+$ ATPase was confirmed by filtering the inhibition mixture through Sephadex G-25M column. In vivo basal acid secretion was also inhibited by AU-164 under the pylorus ligation of Sprague-Dawley rats. In addition, AU-164 protected dose dependently gastric lesion induced by ethanol in rats. The $ED_{50}$ value of 62 mg/kg p.o was estimated. These results suggest that AU-164 is a potent, selective and reversible gastric $H^+/K^+$ ATPase inhibitor, and that AU-164 has a potential use for the clinical therapeutics of peptic ulcer disease.