Abstract:
BACKGROUND:Malignant melanoma is an aggressive form of skin cancer with limited effective therapeutic options. Melanoma research concentrates on maximizing the effect on cancer cells with minimal toxicity to normal cells. AMP-activated protein kinase (AMPK) is an important regulator of cellular energy homeostasis and has been shown to control tumor progression regulating the cell cycle, protein synthesis, and cell growth and/or survival. Honokiol (HNK) is a biphenolic compound derived from Magnolia officinalis, a plant that has been used in traditional Chinese and Japanese medicine for the treatment of various pathological conditions. Recent studies have shown that HNK has antitumor activity with relatively low toxicity. In this study, we demonstrated that the growth inhibitory effects of HNK on melanoma and melanoma cancer stem cells were mediated through the activation of AMPK and hence AMPK signaling in melanoma cells. METHODS:We determined the effects of HNK treatment on various melanoma cell lines. HNK-induced cell growth inhibitory effects were determined using hexosaminidase assay. Protein expression studies were done by immunoblotting. Primary spheroid assay was used to assess stemness by growing single suspension cells in ultralow attachment plates. RESULTS:HNK is highly effective in inhibiting melanoma cells by attenuating protein kinase B/mammalian target of rapamycin and AMPK signaling. HNK showed significant inhibition of the spheroid-forming capacity of melanoma cells and, hence, stemness. HNK significantly decreased the number and size of melanospheres in a dose-dependent manner. Western blot analyses showed enhanced phosphorylation of AMPK in melanoma cells. Furthermore, HNK decreased the cellular adenosine triphosphate pool in a dose-dependent manner with maximum effects observed at 48 hours. CONCLUSIONS:The results suggest that HNK can target melanoma cells and mark them for cell death through AMPK signaling. Further studies are warranted for developing HNK as an effective chemopreventive/therapeutic agent in melanoma.
journal_name
Am J Surgjournal_title
American journal of surgeryauthors
Kaushik G,Kwatra D,Subramaniam D,Jensen RA,Anant S,Mammen JMdoi
10.1016/j.amjsurg.2014.09.014subject
Has Abstractpub_date
2014-12-01 00:00:00pages
995-1002; discussion 1001-2issue
6eissn
0002-9610issn
1879-1883pii
S0002-9610(14)00458-9journal_volume
208pub_type
杂志文章abstract::Two hundred six consecutive patients were followed from 5 to 15 years after a distal splenorenal shunt operation. Nonalcoholic patients demonstrated nearly twice the survival rate when compared with alcoholic patients. The mean duration of life for the surviving nonalcoholics was 10 years and for the alcoholics, 9 yea...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/s0002-9610(88)80250-2
更新日期:1988-01-01 00:00:00
abstract:BACKGROUND:This 17-year review was undertaken to examine clinical outcomes and the changing trends in resource utilization for lower extremity bypass grafts performed in a managed care setting. PATIENTS AND METHODS:Between 1979 and 1995, 338 bypasses in 276 patients (199 men, 77 women; 62% diabetics) were carried out ...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/S0002-9610(96)00130-4
更新日期:1996-08-01 00:00:00
abstract::The antiproliferative effects of somatostatin on hepatocytes stimulated by hepatocyte growth factor (HGF) or epidermal growth factor (EGF) were investigated using primary cultures of adult rat hepatocytes. Somatostatin inhibits HGF-induced (at a dose of 10 ng/mL) or EGF-induced (at a dose of 100 ng/mL) 3H-thymidine in...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(92)90271-r
更新日期:1992-01-01 00:00:00
abstract::The cusps of valve-bearing segments of canine cephalic, femoral, and jugular veins were completely divided and were used in interposition grafts in the femoral and carotid arteries in the nonreversed position. Three control grafts had intact valves in the reversed position, and one control graft in the reversed positi...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/s0002-9610(85)80035-0
更新日期:1985-04-01 00:00:00
abstract::A technique is described for salvage of looped forearm polytetrafluoroethylene (PTFE) vascular access grafts that fail because of thrombosis due to cephalic vein outflow obstruction. It entails reversal of blood flow direction through the graft and construction of a new venous outflow in the medial upper arm. This pro...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(91)91119-4
更新日期:1991-04-01 00:00:00
abstract:BACKGROUND:Laparoscopic colorectal surgery remains one of the most challenging techniques to learn. METHODS:The authors collected studies that have compared hand-assisted laparoscopic surgery (HALS) and open surgery for the treatment of colorectal disease over the past 17 years. Data of interest for HALS and open surg...
journal_title:American journal of surgery
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.amjsurg.2013.04.013
更新日期:2014-01-01 00:00:00
abstract::A controlled prospective study was conducted to compare the results of kidney preservation and transplantation in regard to the type of perfusate used for perfusion preservation. Cryoprecipitated plasma, plasma protein fraction and serum albumin solution were used as perfusate. Between February 1979 and July 1980, 176...
journal_title:American journal of surgery
pub_type: 临床试验,杂志文章
doi:10.1016/0002-9610(81)90137-9
更新日期:1981-04-01 00:00:00
abstract:BACKGROUND:The aim of the study was to evaluate the efficacy of adjuvant chemotherapy on survival after resection for gastric cancer. METHODS:Patients were enrolled if they underwent resection of gastric cancer but had lymph node or serosal involvement or both. Surgical resection was either total or partial gastrectom...
journal_title:American journal of surgery
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/j.amjsurg.2003.12.014
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND:Elective peripheral vascular surgery provides quality outcomes that are of great benefit to patients, but have complications that result in severe morbidity and excessive costs. METHODS:We studied elective carotid endarterectomy, aortofemoral bypass/aortic aneurysm repairs, and femoral-distal bypass surgeri...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2010.08.025
更新日期:2011-03-01 00:00:00
abstract:BACKGROUND:Surgery is a vital component of a comprehensive health system, but there are often personnel limitations in resource constrained areas. Zambia provides post graduate surgical training through two systems to help address this shortage. However, no studies have analyzed surgical trainees' perceptions of these ...
journal_title:American journal of surgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.amjsurg.2017.07.023
更新日期:2018-04-01 00:00:00
abstract:BACKGROUND:Hypocalcemia caused by transient or definitive hypoparathyroidism is the most frequent complication after thyroidectomy. We aimed to compare the impact of incidental parathyroidectomy and serum vitamin D(3) level on postoperative hypocalcemia after total thyroidectomy (TT) or near total thyroidectomy (NTT). ...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2008.01.032
更新日期:2009-04-01 00:00:00
abstract::The aim of this study was to evaluate whether total gastrectomy performed for gastric cancer leads to an increased risk of cholelithiasis and whether the method of reconstruction of the digestive tract influences that risk. A total of 102 patients who had undergone total gastrectomy for gastric cancer between 1980 and...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/s0002-9610(05)80573-2
更新日期:1993-07-01 00:00:00
abstract::Hemorrhage is a major cause of trauma deaths. Coagulopathy exacerbates hemorrhage and is commonly seen during major trauma resuscitation, suggesting that current practice of coagulation factor transfusion is inadequate. Reversal of coagulopathy involves normalization of body temperature, elimination of the causes of d...
journal_title:American journal of surgery
pub_type: 杂志文章,评审
doi:10.1016/j.amjsurg.2005.03.034
更新日期:2005-09-01 00:00:00
abstract::Meckel's diverticulum is the most common congenital abnormality of the small intestine, occurring in about 2 per cent of the population. Complications of a Meckel's diverticulum, including hemorrhage, inflammation, bowel obstruction, and neoplasms, occur in 15 to 33 per cent of cases and invariably demand operative tr...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(75)90345-1
更新日期:1975-06-01 00:00:00
abstract::It is important that physicians participate in the debate and planning process that will ultimately guide how we reform the way health care is financed and delivered in the United States. Herein is offered a perspective on the problem, one which is not necessarily appreciated by health planners. While we deliver the b...
journal_title:American journal of surgery
pub_type: 杂志文章,评审
doi:10.1016/0002-9610(94)90081-7
更新日期:1994-02-01 00:00:00
abstract::Immunologic changes after blood transfusions cannot be studied ethically in normal individuals. We therefore studied two comparable groups of patients with atherosclerotic cardiovascular disease who received similar drug treatment and experienced a similar degree of surgical trauma, except that one group received an a...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(92)90114-7
更新日期:1992-02-01 00:00:00
abstract:BACKGROUND:Postoperative pain management with a continuous preperitoneal infusion (CPI) for locoregional anesthesia has been shown to have improved postoperative outcomes. This is the first direct comparison of CPI versus epidural infusion (EPI), both in conjunction with systemic analgesia. METHODS:A retrospective rev...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2011.05.016
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND:Gastrointestinal stromal tumors (GISTs), the specific kit-positive mesenchymal tumors of the gastrointestinal tract, are rarely found in the anorectum and account for only 0.1% of all colorectal tumors. The main stem of therapy remains surgical excision. The standard surgical approach for anorectal GISTs inc...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2005.10.013
更新日期:2006-01-01 00:00:00
abstract::Ileal water and electrolyte absorption exceed jejunal absorption in both the basal and meal-stimulated states. The purposes of these experiments were to determine: (1) if luminal bile acids alter basal or meal-stimulated intestinal absorption, and (2) if there is site specificity or meal stimulation of intestinal bile...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/s0002-9610(05)80792-5
更新日期:1993-06-01 00:00:00
abstract::The mechanism of preventing intestinal regurgitation by means of a telescoped intestinal valve has been investigated in this study. Ten telescoped intestinal valves were uniformly created in dogs. A tolerance test to barium reflux was performed before the animals were sacrificed 16 weeks postoperatively, which yielded...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(87)90577-0
更新日期:1987-04-01 00:00:00
abstract:BACKGROUND:Traditional treatment of breast abscesses involves incision and drainage, with and without ultrasound guidance. These procedures cause considerable discomfort and morbidity for the patient. This study was conducted to determine whether needle aspiration of breast abscesses without ultrasound guidance was an ...
journal_title:American journal of surgery
pub_type: 临床试验,杂志文章
doi:10.1016/s0002-9610(01)00683-3
更新日期:2001-08-01 00:00:00
abstract:BACKGROUND:This study analyzed presentation and management of hemorrhage after pancreaticoduodenectomy (PD) to determine the respective role of surgery and embolization. METHODS:From January 1992 to March 2005, 411 patients underwent PD and were analyzed with regard to postoperative hemorrhage. RESULTS:Hemorrhage occ...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2006.08.088
更新日期:2007-07-01 00:00:00
abstract::A total of 1,180 patients underwent palliative surgery for pancreatic cancer in the 158 hospitals of the U.S. Department of Veterans Affairs from 1987 to 1991. Using computerized data files, we analyzed these procedures according to type of procedure (gastric bypass only [GO], biliary bypass only [BO], or combined bil...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/s0002-9610(05)80669-5
更新日期:1993-12-01 00:00:00
abstract:BACKGROUND:The insertion and subsequent removal of chest tubes are frequently performed procedures. We hypothesize that routine chest radiographs obtained after chest tube removal to confirm the absence of any post-procedure complications have little impact on clinical management. MATERIALS AND METHODS:A 5-year retros...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/s0002-9610(99)00260-3
更新日期:2000-01-01 00:00:00
abstract::A 5 year retrospective study of the use of cholangioscopy in 153 difficult biliary cases including stones, strictures, tumors, and anomalies has been reported. In the 88 patients (58 percent) who underwent both operative cholangiography and cholangioscopy, the cholangioscope revealed 11 lesions (13 percent) missed by ...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(84)90048-5
更新日期:1984-01-01 00:00:00
abstract:BACKGROUND:Despite the development of several prediction rules to guide head CT imaging, determining whom to screen for head trauma in the geriatric population after a ground level fall remains controversial. The purpose of this study was to assess the impact of head CT on the management of older adult patients who pre...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2017.07.038
更新日期:2017-12-01 00:00:00
abstract::Serum transferrin is an important protein used to assess visceral protein status in patients requiring nutritional support. Since serum transferrin assays are not readily available in all institutions and there is a correlation between the serum transferrin level and TIBC, Blackburn's formula to compute the serum tran...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(84)90337-4
更新日期:1984-11-01 00:00:00
abstract:BACKGROUND:Laparoscopic rectal cancer surgery involving rectal division with intracorporeal stapling devices is technically difficult. This study aimed to identify risk factors for anastomotic leakage associated with laparoscopic anterior resection for rectal cancer. METHODS:We studied 363 patients who underwent lapar...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2010.11.014
更新日期:2011-09-01 00:00:00
abstract::Seven pairs of rats were simultaneously infused with a chemically formulated nutritionally complete amino acid-glucose diet which was delivered, at the same rate, into a central vein or into a feeding gastrostomy. The intragastrically infused rats showed greater weight gain than did the intravenously infused rats. Thi...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(78)90092-2
更新日期:1978-02-01 00:00:00
abstract::A quantitative endotoxin assay was applied in this study of endotoxin transport from the infected abdomen. In rats with fecal peritonitis, extremely high concentrations were found in thoracic duct lymph (approximately 400 times higher than those found in arterial and portal vein plasma). Taking flow rates into account...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(86)90098-x
更新日期:1986-04-01 00:00:00