• Title/Summary/Keyword: Pancreatic

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Significance of Caveolin-1 Regulators in Pancreatic Cancer

  • Chen, Tao;Liu, Liang;Xu, Hua-Xiang;Wang, Wen-Quan;Wu, Chun-Tao;Yao, Wan-Tong;Yu, Xian-Jun
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.8
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    • pp.4501-4507
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    • 2013
  • Caveolin-1 is a scaffold protein on the cell membrane. As the main component of caveolae, caveolin-1 is involved in many biological processes that include substance uptake and transmembrane signaling. Many of these processes and thus caveolin-1 contribute to cell transformation, tumorigenesis, and metastasis. Of particular interest are the dual rolesof tumor suppressor and oncogene that caveolin-1 appear to play in different malignancies, including pancreatic cancer. Therefore, analyzing caveolin-1 regulators and understanding their mechanisms of actionis key to identifying novel diagnostic and therapeutic tools for pancreatic cancer. This review details the mechanisms of action of caveolin-1 regulators and the potential significance for pancreatic cancer treatment.

Development of Gastric and Pancreatic Enzyme Activities and Their Relationship with Some Gut Regulatory Peptides in Grazing Sheep

  • Xia, Lang;Cailian, Wang
    • Asian-Australasian Journal of Animal Sciences
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    • v.24 no.4
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    • pp.500-508
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    • 2011
  • Forty-four Gansu Alpine Fine-wool lambs were used to study changes in the activities of three gastric and five pancreatic enzymes under grazing conditions between 0 and 56 days of age. The lambs were slaughtered on days 0, 3, 7, 14, 21, 28, 42 and 56, the abomasal contents, mucosa and pancreas were immediately removed and placed into liquid nitrogen and enzyme activities were determined. Gastric enzyme (chymosin, pepsin and pregastrc esterase) activities were relatively high at birth, especially chymosin, but decreased quickly between day 0 and 21. The activity of pepsin changed insignificantly with increasing age. There was no significant change in the pancreatic enzyme activities (trypsin, chymotrypsin, ${\alpha}$-amylase, lipase and lactase). The activity of trypsin was relatively higher than that of the other pancreatic enzymes, and lactase activity was low. These ontogenic patterns might be under the control of many gut regulatory peptides, the plasma concentrations of which changed simultaneously. Some gastric and pancreatic enzymes were correlated with plasma concentrations of these gut regulatory peptides.

An Imported Case of Cystic Echinococcosis in the Liver

  • Ahn, Keun Soo;Hong, Sung-Tae;Kang, Yu Na;Kwon, Jung Hyeok;Kim, Mi Jeong;Park, Tae Jun;Kim, Yong Hoon;Lim, Tae Jin;Kang, Koo Jeong
    • Parasites, Hosts and Diseases
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    • v.50 no.4
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    • pp.357-360
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    • 2012
  • A 25-year-old Uzbek male presented with right upper abdominal pain for 20 days. On radiologic studies, a huge cystic mass was noticed in the right liver which was suspected as parasitic. The patient received right hepatic segmentectomy (segment 7), and the surgically resected mass was confirmed as cystic echinococcosis (CE), measuring 10.5 cm in its diameter. The inner surface of the cyst was bile-stained. The patient was discharged on the 8th hospital day, and was rechecked 6 months after the surgical intervention without any evidence of recurrence. The present report describes findings of an imported case of CE which represented ultrasound images of the 'ball of wool'.

Beneficial Antioxidative and Antiperoxidative Effect of Cinnamaldehyde Protect Streptozotocin-Induced Pancreatic β-Cells Damage in Wistar Rats

  • Subash-Babu, P.;Alshatwi, Ali A.;Ignacimuthu, S.
    • Biomolecules & Therapeutics
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    • v.22 no.1
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    • pp.47-54
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    • 2014
  • The present study was aimed to evaluate the antioxidant defense system of cinnamaldehyde in normal, diabetic rats and its possible protection of pancreatic ${\beta}$-cells against its gradual loss under diabetic conditions. In vitro free radical scavenging effect of cinnamaldehyde was determined using DPPH (1,1-diphenyl-2-dipicrylhydrazyl), superoxide radical, and nitric oxide radical. Streptozotocin (STZ) diabetic rats were orally administered with cinnamaldehyde at concentrations of 5, 10 and 20 mg/kg body weight for 45 days. At the end of the experiment, the levels of plasma lipid peroxides and antioxidants such as vitamin C, vitamin E, ceruloplasmin, catalase, superoxide dismutase, reduced glutathione and glutathione peroxidase were determined. A significant increase in the levels of plasma glucose, vitamin E, ceruloplasmin, and lipid peroxides and significant decrease in the levels of plasma insulin and reduced glutathione were observed in the diabetic rats. Also the activities of pancreatic antioxidant enzymes were altered in the STZ-induced diabetic rats. The altered enzyme activities were reverted to near-normal levels after treatment with cinnamaldehyde and glibenclamide. Histopathological studies also revealed a protective effect of cinnamaldehyde on pancreatic ${\beta}$-cells. Cinnamaldehyde enhances the antioxidant defense against reactive oxygen species produced under hyperglycemic conditions and thus protects pancreatic ${\beta}$-cells against their loss and exhibits antidiabetic properties.

A Case of Chronic Pancreatitis with Massive Pleural Effusion (다량의 늑막 삼출을 동반한 만성 췌장염 1례)

  • Lee, Eun Young;Kang, Yo Han;Kim, Jae Young;Kim, Sung Won
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.8 no.1
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    • pp.81-86
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    • 2005
  • Massive pancreatic pleural effusion is a rare complication of chronic pancreatitis. It results from leakage of pancreatic secretion into the pleural space through the aortic or esophageal hiatus, either by a pancreatic duct disruption or communicating pseudocyst. The presentation of the pancreatic pleural effusion is often misleading as respiratory rather than abdominal symptoms because of predominance of pulmonary complaints. Markedly elevated amylase level of the pleural fluid is highly suggestive of the diagnosis. We experienced a case of chronic pancreatitis with massive pleural effusion in a 9-year-old female, who presented with a 6-months history of intermittent abdominal pain, and cough and chest pain for 3 days.

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A Case Report of Unresectable Pancreatic Carcinoma Patient for Relieving Cancer Related Pain and Improving Quality of Life by Korean Medical Treatment (한방치료를 통해 수술이 불가능한 췌장암 환자에서 통증개선 및 삶의 질을 회복한 증례)

  • Yun, Hoyoung;Cho, Chongkwan;Yoo, Hwaseung;Bang, Sunhwi
    • Journal of Korean Traditional Oncology
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    • v.18 no.1
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    • pp.9-15
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    • 2013
  • Objectives : The purpose of this study is to report the effect of Korean medicine on the pancreatic carcinoma patient. Method : A patient was diagnosed as unresectable pancreatic carcinoma. She complained insomnia, abdominal pain, dyspepsia and sleep disturbance. She was treated by Korean medicine composed of acupuncture, herbal medication and wild ginseng pharmacopuncture. Results : All symptoms took a favorable turn after Korean medicine treatment. As treatment was performed, as intensity of pain, insomnia, dyspepsia and fatigue were decreased. Conclusion : This study suggests that Korean medicine treatment has effectiveness for improvement of cancer related symptoms of a pancreatic carcinoma patient. Consequently, the treatment is helpful in improving quality of life.

Effects of Intragastric Hypertonic Solution on Pancreatic Exocrine Secretion (고장수액의 위내 주입으로 인한 취외분비의 변동)

  • Cho, T.S.;Kim, W.J.;Hong, S.S.
    • The Korean Journal of Pharmacology
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    • v.13 no.1 s.21
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    • pp.29-33
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    • 1977
  • Effects of 50% glucose solution on pancreatic exocrine function were studied in rat, rabbit and cat. The alterations during the resting state, the continuous intravenous infusion of secretin and the infusion of secretin with CCK-PZ were determined. 1) No change of pancreatic secretion in rat was observed by intragastric administration of the hypertonic glucose solution. 2) Intragastric administration of the hypertonic glucose solution in rabbit produced the inhibitory effect on pancreatic secretion during secretion infusion. 3) While secretin with CCK-PZ were infused continuously, intragastric administration of the hypertonic glucose solution revealed the marked inhibitory effect on pancrcreatic secretion in cat. Oral administration of the hypertonic glucose solution produced no significant inhibition in the resting gland but markedly depressed the pancreatic flow and enzyme concentration in the secretin or CCK-PZ stimulated gland. It is felt that the inhibitory response of exocrine pancreas induced by intragastric hytertonic glucose solution is resulted in interaction between secretory hormone and gastric mucosal factor possibly enteroglucagon.

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A Case of Intussusception Caused by Meckel's Diverticulum with Heterotopic Pancreatic and Gastric Tissues (이소성 췌장과 위점막을 가진 멕켈 게실에 의한 장중첩증 1예)

  • Kim, Mi Jin;Kim, Jae Young;Sul, Ji Young;Kang, Dae Young
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.9 no.1
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    • pp.75-79
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    • 2006
  • Intussusception is a frequent cause of intestinal obstruction in early childhood and most are idiopathic in origin. In a minority of cases a definite pathological lead point is identified by imaging studying or during surgery. As the pathologic lead point of intussusception, Meckel's diverticulum is the most common lesion. In symptomatic patients, 40~60% of Meckel's diverticulum contain ectopic tissue, with gastric mucosa being far the most common type. A few Meckel's diverticulum contain pancreatic tissue. Combined heterotopic pancreatic and gastric tissues in the Meckel's diverticulum especially causing intussusception is extremely rare. We report the case of 5-year-old girl with an intussusception caused by Meckel's diverticulum containing both heterotopic gastric and pancreatic tissues.

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The Effect of Selaginella tamariscina on Inhibition of Pancreatic Lipase and Lipid Accumulation (부처손(Selaginella tamariscina) 추출물의 리파아제 저해 활성 및 지질 축적 억제 효과)

  • Kim, Gun-Hee;Lee, Shin-Young;Lee, Ae-Rang
    • The Korean Journal of Food And Nutrition
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    • v.32 no.1
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    • pp.27-32
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    • 2019
  • The objective of this study was to evaluate novel usability as natural anti-obesity supplement of Selaginella tamariscina extract. The total phenol contents and total flavonoid contents were $60.29{\pm}3.11GAE\;mg/g$ and $14.90{\pm}0.34QE\;mg/g$, respectively. To evaluate anti-obesity activity of Selaginella tamariscina extract, pancreatic lipase inhibition activity as well as its inhibition effect of lipid accumulation in adipocytes were conducted by Oil Red O staining and lipolysis assay. The result of pancreatic lipase inhibition activity of S. tamariscina extract showed a wide range between 40 and 73% dose dependently. While the incubation of 3T3-L1 cells with S. tamariscina extract inhibited differentiation of preadipocytes and reduced lipid accumulation, the level of released free glycerol into culturing medium was increased in multiple concentrations. These results showed that S. tamariscina extract inhibit adipogenesis and pancreatic lipase activity. Thus, S. tamariscina extract can be a candidate for regulating lipid accumulation in obesity.

MS-5, a Naphthalene Derivative, Induces Apoptosis in Human Pancreatic Cancer BxPC-3 Cells by Modulating Reactive Oxygen Species

  • Suman Giri;Gyu Hwan Park;Joon-Seok Choi;Eunsook Ma;Kyung-Soo Chun;Sang Hoon Joo
    • Biomolecules & Therapeutics
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    • v.31 no.1
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    • pp.68-72
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    • 2023
  • Pancreatic cancer is one of the most fatal cancers with a poor prognosis. Standard chemotherapies have proven largely ineffective because of their toxicity and the development of resistance. Therefore, there is an urgent need to develop novel therapies. In this study, we investigated the antitumor activity of MS-5, a naphthalene derivative, on BxPC-3, a human pancreatic cancer cell line. We observed that MS-5 was cytotoxic to BxPC-3 cells, as well as inhibited the growth of cells in a concentration- and time- dependent manner. Flow cytometry analysis revealed that the percentage of annexin V-positive cells increased after MS-5 treatment. We also observed cleavage of caspases and poly (ADP-ribose) polymerase, and downregulation of Bcl-xL protein. Flow cytometry analysis of intracellular levels of reactive oxygen species (ROS) and mitochondrial superoxide suggested that MS-5 induced the generation of mitochondrial superoxide while lowering the overall intracellular ROS levels. Thus, MS-5 may be potential candidate for pancreatic cancer treatment.