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| 1 | Folic acid supplementation inhibits recurrence of colorectal adenomas:A randomized chemoprevention trial显示文摘AIM: To determine whether folic acid supplementation will reduce the recurrence of colorectal adenomas, the precursors of colorectal cancer, we performed a double-blind placebo-controlled trial in patients with adenomatous polyps. METHODS: In the current double-blind, placebo-controlled trial at this VA Medical Center, patients with colorectal adenomas were randomly assigned to receive either a daily 5 mg dose of folic acid or a matched identical placebo for 3 years. All polyps were removed at baseline colonoscopy and each patient had a follow up colonoscopy at 3 years. The primary endpoint was a reduction in the number of recurrent adenomas at 3 years. RESULTS: Of 137 subjects, who were eligible after confirmation of polyp histology and run-in period to conform compliance, 94 completed the study; 49 in folic acid group and 45 in placebo group. Recurrence of adenomas at 3-year was compared between the two groups. The mean number of recurrent polyps at 3-year was 0.36 (SD, 0.69) for folic acid treated patients compared to 0.82 (SD, 1.17) for placebo treated subjects, resulting in a 3-fold increase in polyp recurrence in the placebo group. Patients below 70 years of age and those with left-sided colonicadenomas or advanced adenomas responded better to folic acid supplementation. CONCLUSION: High dose folic acid supplementation is associated with a signif icant reduction in the recurrence of colonic adenomas suggesting that folic acid may be an effective chemopreventive agent for colorectal neoplasia. | Richard Jaszewski Sabeena Misra Martin Tobi Nadeem Ullah Jo Ann Naumoff Omer Kucuk Edi Levi Bradley N Axelrod Bhaumik B Patel Adhip PN Majumdar | 2008 | World Journal of Gastroenterology2008，14，28： | 10 |
| 2 | Isolation of the mucilages from Hibiscus rosasinensis linn.and Okra(Abelmoschus esculentus linn.) and studies of the binding effects of the mucilages显示文摘Objective:To isolate and evaluate comparatively the binding efficacy of the mucilages obtained from the plants of Hibiscus rosasinensis and Okra(Abelmoschus esculentus).Methods:Extraction of mucilages from the leaves of Hibiscus and pods of Okra(Ladies finger) was carried out by a cold maceration process.The extracted mucilages were subjected to various physicochemical properties for its suitability as an excipient in the formulation of tablet dosage form.Different concentrations(10,8,5,2 and 1%w/v) of binder solutions of Hibiscus and Okra were used for the formulation of tablets and the formulated tablets were evaluated by studying the standard parameters like diameter,thickness,weight variation,hardness,friability,disintegration and in vitro dissolution.Stability studies of the formulated tablets were conducted for four weeks. Results:The formulated tablets prepared using the mucilages of both Hibiscus and Okra had good appearance.The in vitro drug release profile of the tablets prepared using Okra mucilage had an optimum of 90%at a mucilage concentration of 1%w/v concentration mucilage itself within 4 h.Conclusions:According to the observations,the lower concentration levels of Okra can be used as an alternative binder to starch.The higher concentration levels of Okra mucilage show a slow and sustained release,and can be considered as an alternative natural excipient in the modified drug delivery systems.At the same time,the above natural excipient of Hibiscus mucilage could be used as a platform for prolonged release if its binder concentrations are increased. | Ameena K Dilip C Saraswathi R Krishnan PN Sankar C Simi SP | 2010 | Asian Pacific Journal of Tropical Medicine2010，3，7： | 8 |
| 3 | Cancer stem cells in Helicobacter pylori infection and aging: Implications for gastric carcinogenesis显示文摘AIM: To demonstrated the combined effects of aging and carcinogen treatment on cancer stem/stem-like cells(CSCs) of gastric mucosa in an animal model. METHODS: In this study we investigated the effects of aging and Helicobacter pylori(H. pylori) inflammation as a model for inflammation induced carcinogenesis in human and rat gastric mucosa samples. In aging studies, we compared 4-mo old(young) with 22 mo(aged) old Fischer-344 rats. For human studies, gastric biop-sies and resection specimens representing normal mucosa or different stages of H. pylori gastritis and gastric adenocarcinomas were used for determining the expression of stem cell markers CD166, ALDH1 and LGR5. In addition we performed immunofluorescent double labeling for B-catenin and Lgr5 in both rat and human gastric tissues to examine the status of Wnt signaling in these cells. RESULTS: CSC markers ALDH1, LGR5, and CD166 were expressed in very low levels in normal human gastric mucosa or young rat gastric mucosa. In contrast, level of expression for all three markers significantly increased in H. pylori gastritis and gastric adenocarcinomas as well as in normal gastric mucosa in aged rats. We also observed cytoplasmic B-catenin staining in both aged rat and human H. pylori inflamed gastric mucosa, which were found to be colocalized with Lgr5 immunoreactive cells. The increased number of ALDH1, CD166 and LGR5 positive cells in H. pylori gastritis indicates that increased number of stem-like cells in gastric mucosa is an early event, and may constitute an important step in the progression to neoplasia. CONCLUSION: Our observation of the age-related increase in cancer stem/stem-like cells in the gastric mucosa may explain the increased incidence of gastric cancer during aging. Combination of aging and H. pylori infection may have additive effects in progression to neoplasia. | Edi Levi Paula Sochacki Nabiha Khoury Bhaumik B Patel Adhip PN Majumdar | 2014 | World Journal of Gastrointestinal Pathophysiology2014，5，3： | 5 |
| 4 | 社区人群血压和颈动脉血流速度与脑容量和脑小血管病的关系显示文摘做脑磁共振成像(magnetic resonance imaging,MRI)经常发现脑小血管病(cerebral small vessel disease,CSVD)。研究已证明高血压和低颈动脉血流速度与脑血管病存在关联。但是,这种关联与脑容量和CSVD的相关性仍有待研究。本文纳入基于社区的I-Lan纵向衰老研究(I-Lan longitudinal aging study)中年龄≥50岁的成年人721例进行分析,采用多普勒超声测量颈总动脉和颈内动脉血流速度,包括收缩期峰值血流速度(peak systolic velocity,PSV)和舒张终末期血流速度(end-diastolic velocity,EDV)。 | 袁源(摘译) 郑武洪(审校) Chuang SY Wang PN Chen LK Chou KH Chung CP Chen CH Mitchell GF Pan WH Cheng HM | 2021 | 中华高血压杂志2021，29，9： | 4 |
| 5 | Emerging therapies in gastrointestinal cancers显示文摘Members of the receptor tyrosine kinase family, that include EGFR, ErbB-2/HER-2, ErbB-3/HER-3 and ErbB-4/ HER-4, are frequently implicated in experimental models of epithelial cell neoplasia as well as in human cancers. Therefore, interference with the activation of these growth factor receptors represents a promising strategy for de- velopment of novel and selective anticancer therapies. Indeed, a number of inhibitors that target either EGFR or HER-2, with the exception of a few that target both; have been developed for treatment of epithelial cancers. Since most solid tumors express different ErbB receptors and/or their ligands, identification of inhibitor(s), targeting multiple EGFR family members may provide a therapeutic benefit to a broader patient population. Here we describe the significance of an ErbB family of receptors in epithelial cancers, and summarize different available therapeutics targeting these receptors. It also emphasizes the need to develop pan-ErbB inhibitors and discusses EGF-Receptor Related Protein, a recently isolated negative regulator of EGFR as a potential pan-ErbB therapeutic for a wide vari- ety of epithelial cancers. | Jyoti Nautiyal Arun K Rishi Adhip PN Majumdar | 2006 | World Journal of Gastroenterology2006，12，46： | 4 |
| 6 | Surface-active agent in Eustachian tube function显示文摘 | Rapport PN Lim DJ Weiss HS | 1975 | Arch Otolarygol1975，101，5： | 4 |
| 7 | 结肠癌复发的规定和治疗学的策略的开发显示文摘 Recurrence of colon cancer still remains a major issue which affects nearly 50% of patients treated by conventional therapeutics. Although the underlying causative factor(s) is not fully understood, development of drug-resistance has been associated with induction of cancer stem or stem-like cells (CSCs) which constitute a small sub-population of tumor cells known to be highly resistant to chemotherapy. In fact, the discovery of CSCs in a variety of tumors (including colon cancer) has changed the view of carcinogenesis and therapeutic strategies. Emerging reports have indicated that to improve patient outcomes, conventional anticancer therapies should be replaced with specifi c approaches targeting CSCs. Thus, therapeutic strategies that specifically target CSCs are being sought to reduce the risk of relapse and metastasis. In order to specifi cally target colon CSCs (while sparing somatic intestinal stem cells), it is critical to identify unique deregulated pathways responsible for self-renewal of CSCs and colon cancer recurrence. Colon CSCs present a unique opportunity to better understand the biology of solid tumors. Thus, a better understanding of the clinical signs and symptoms of colon cancer patients (under-going surgery or chemotherapy) during perioperative periods, along with the underlying regulatory events affecting the stem/progenitor cell self-renewal and differentiation of colon epithelial cells, is of immense importance. In this review we discuss the implication of clinical factors and the emerging role of CSCs during recurrence of colon cancer along with the development of new therapeutic strategies involving the use of natural agents. | Shailender Singh Kanwar Anuradha Poolla Adhip PN Majumdar | 2012 | World Journal of Gastrointestinal Pathophysiology2012，3，1： | 3 |
| 8 | Gut microbiome profiling and colorectal cancer in African Americans and Caucasian Americans显示文摘AIM To determine whether and to what extent the gut microbiome is involved in regulating racial disparity in colorectal cancer(CRC). METHODS All patients were recruited and experiments were performed in accordance with the relevant guidelines and regulations by the Institutional Review Boards (IRB), committees of the John D. Dingell VAMC and Wayne State University guidelines. African American (AA) and Caucasian American (CA) patients were scheduled for an outpatient screening for colonoscopy, and no active malignancy volunteer patients were doubly consented, initially by the gastroenterologist and later by the study coordinator, for participation in the study. The gut microbial communities in colonic effluents from AAs and CAs were examined using 16 sRNA profiling, and bacterial identifications were validated by performing SYBR-based Real Time PCR. For metagenomic analysis to characterize the microbial communities, multiple software/tools were used, including Metastats and R statistical software.RESULTS It is generally accepted that the incidence and mortality of CRC is higher in AAs than in CAs. However, the reason for this disparity is not well understood. We hypothesize that the gut microbiome plays a role in regulating this disparity. Indeed, we found significant differences in species richness and diversity between AAs and CAs. Bacteroidetes was more abundant in AAs than in CAs. In particular, the pro-inflammatory bacteria Fusobacterium nucleatum and Enterobacter species were significantly higher in AAs, whereas probiotic Akkermansia muciniphila and Bifidobacterium were higher in CAs. The polyphyletic Clostridia class showed a divergent pattern, with Clostridium XI elevated in AAs, and Clostridium IV, known for its beneficial function, higher in CAs. Lastly, the AA group had decreased microbial diversity overall in comparison to the CA group. In summary, there were significant differences in pro-inflammatory bacteria and microbial diversity between AA and CA, which may help explain the CRC disparity between groups.CONCLUSION Our current investigation, for the first time, demonstrates microbial dysbiosis between AAs and CAs, which could contribute to the racial disparity of CRC. | Lulu Farhana Fadi Antaki Farhan Murshed Hamidah Mahmud Stephanie L Judd Pratima Nangia-Makker Edi Levi Yingjie Yu Adhip PN Majumdar | 2018 | World Journal of Gastrointestinal Pathophysiology2018，9，2： | 3 |
| 9 | Antimicrobial activity of cotton and silk fabric with herbal extract by micro encapsulation显示文摘Objective:To explore the antimicrobial activity of microcapsules encapsulated with mixture of herbs like neem,tulsi and turmeric,and its application on cellulosic fabric in the form of microcapsules.Methods:The microcapsules were prepared from the mixture of herbs by plain diffusion method,a natural encapsulation technique with yeast and applied on cotton and silk fabric by pad-dry-cure method.The microcapsules were fixed on cotton and silk fabric using the binder UF Silpure FBR-5(PA)B at 120℃.The antimicrobial activities of the finished fabric were assessed by using three types of bacteria including Staphylococcus aureus,Escherichia coli and Pseudomonas.Results:The results of antimicrobial activity from the tests including parallel streak method and disc diffusion method showed that activity of the mixture of herbs was very effective among the three types of bacteria selected,and the antimicrobial activity of prepared microcapsule against Pseudomonas was very good.Conclusions:The herbal microcapsule treated fabric could be applied in the field of medicine.The scanning electron microscope photographs ensure the fixing of the microcapsules firmly in the yarn structure of plain woven cotton and silk fabric. | Saraswathi R Krishnan PN Dilip C | 2010 | Asian Pacific Journal of Tropical Medicine2010，3，2： | 3 |
| 10 | Morphology, drug distribution, and in veto release profiles of biodegradable palymeric microspheres containing protein fabricated by double-emulsion solvent extraction/evaporation method显示文摘 | Yi YY Tai SC Ngee PN | 2001 | Biomaterials2001，22，： | 2 |
| 11 | Long-term results of fiberoptic bronchoscopic balloon dilation in the management of benign tracheobronchial stenosis显示文摘 | Sheski FD Mathur PN | 1998 | Chest1998，114，3： | 2 |
| 12 | Hyperlipoproteinemia enhances susceptibility to acute disseminated Candida albicans infection in low-density-lipoprotein-receptor-deficient mice 显示文摘 | Netea MG Demacker PN de Bont N | 1997 | Infect Immun1997，65，7： | 2 |
| 13 | Vascular remodeling in coronary artery disease显示文摘 | Di Mario C Ruygrok PN Serruys PW | 1994 | J Cardiovasc Pharmacol1994，24，3： | 2 |
| 14 | 沉积岩中渗透率——孔隙度关系显示文摘大量资料表明,许多固结砂岩和碳酸盐地层中,渗透率(K)的对数常常与孔隙度(φ)呈线性比例关系。这是岩石应用地球物理学的最基本关系式之一。本文综合大量公开发布的资料和文献,总结了渗透率与各种岩石和孔隙度参数关系的预测模式,共四类。最后提出实际应用这些关系时注意的问题。 | Nels.,PN 黄子齐 | 1996 | 测井科技1996，，3： | 2 |
| 15 | 成人脑死亡判定的循证医学指南更新--美国神经病学会质量标准分会报告显示文摘目的就如下问题对美国神经病学会1995年脑死亡判定实践标准进行更新:①符合脑死亡临床判定标准的患者神经功能能恢复吗?②确定患者神经功能永久性停止的恰当观察时间是多长?③有时可能观察到脑死亡患者的复合肢体运动,这是否错误地提示仍然保留脑功能?④何种技术手段判断呼吸停止是相对安全的?⑤是否存在新的辅助检测能准确判断患者脑死亡?方法系统回顾MEDLINE及EMBASE数据库1996年1月—2009年5月收录的文献,其研究仅限于成年人(≥18岁)。结果及建议对成年人,按照美国神经病学会于1995年确定的脑死亡判定实践标准,目前尚无判定为脑死亡患者出现神经功能恢复的报告。脑死亡患者可以存在复合的自发运动及假阳性触发呼吸机。目前还无足够的证据用以确定神经功能不可逆性停止的最短观察时间。通过氧扩散来确定呼吸停止是安全的,但目前还无足够证据确定呼吸停止检测技术的相对安全性。目前还无足够的证据确定新型辅助检测能否准确判断患者全脑功能已经停止。 | Wijdicks EFM Varelas PN Gronseth GS Greer DM 王宁(译) 何福亮(译) | 2010 | 中国脑血管病杂志2010，7，9： | 2 |
| 16 | Harmonic hepatic US with microbubble contrast agent: initial experience showing improved characterization of hemangioma, hepatocellular carcinoma, and metastasis1显示文摘 | Wilson SR Burns PN Muradali D | 2000 | Radiology2000，215，1： | 2 |
| 17 | Concurrent chemoradiation straegies in the management of unreseetable stage III non - small -cell lung cancer显示文摘 | Lara PN Goldberg Z DaviesA | 2002 | Clin Lung Cancer2002，2，： | 1 |
| 18 | Eating disturbances and outcome of gastric bypass surgery: a pilot study 显示文摘 | Hsu LK Sullivan SP Benotti PN | 1997 | Int J Disord1997，21，4： | 1 |
| 19 | P53 protein expression in benign and malignant skin turnouts显示文摘 | RO YS COOPER PN LEE JL | 1993 | Br J Dermatol1993，128，： | 1 |
| 20 | Isoform specific and exercise- intensity-dependent activation of 5 '-AMP-activated protein kinasein in human skeletal muscle 显示文摘 | W ojtaszewski JF PN Nielsen | 2000 | J Physiol2000，528，： | 1 |
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