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Journal of Biomedical Research

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https://www.readbyqxmd.com/read/27476880/silibinin-and-colorectal-cancer-chemoprevention-a-comprehensive-review-on-mechanisms-and-efficacy
#1
Komal Raina, Sushil Kumar, Deepanshi Dhar, Rajesh Agarwal
Globally, the risk of colorectal cancer (CRC) as well as the incidence of mortality associated with CRC is increasing. Thus, it is imperative that we look at alternative approaches involving intake of non-toxic natural dietary/non-dietary agents, for the prevention of CRC. The ultimate goal of this approach is to reduce the incidence of pre-neoplastic adenomatous polyps and prevent their progression to more advanced forms of CRC, and use these natural agents as a safe intervention strategy during the clinical course of this deadly malignancy...
November 20, 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27760890/pathology-and-molecular-characterization-of-recent-leucocytozoon-caulleryi-cases-in-layer-flocks
#2
Lee Hae Rim, Koo Bon-Sang, Jeon Eun-Ok, Han Moo-Sung, Min Kyung-Cheol, Lee Seung Baek, Bae Yeonji, Mo In-Pil
Leucocytozoonosis was found in three layer farms in chickens with suspected fatty liver or fatty liver hemorrhagic syndrome in Korea between 2009 and 2011. These layer chicken flocks showed both mortality and decreased egg production for one or two weeks when they were between 59 and 82 weeks old. At the necropsy, the most prominent gross lesions were found in the liver, which was enlarged, had a fragile texture, exhibited yellowish discolorations, and had various hemorrhagic lesions. Tissue reactions associated with megaloschizonts specific for Leucocytozoon caulleryi were prominent upon microscopic examination of the liver without significant lipidosis...
October 17, 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27760889/g-aminobutyric-acid-promotes-methionine-choline-deficient-diet-induced-nonalcoholic-steatohepatitis
#3
Seok Roh Yoon, Cho Ara, Zhou Zixiong, Jeong Hyuneui, Park Jeong-Eun, Cha Youn-Soo, Oh Suk-Heung, Lim Chae-Woong, Kim Bumseok
Nonalcoholic steatohepatitis (NASH) is one of the most common liver diseases and a major cause of liver fibrosis worldwide. G-Aminobutyric acid (GABA) is one of the most abundant inhibitory neurotransmitters in the central nervous system. Recently, it has been reported that GABAergic signaling pathways are found in various non-neuronal tissues including the immune system and play a functional role. In the present study, we investigated whether administration of GABA has effects on NASH through its immunomodulatory effects...
October 17, 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27845307/laparoscopic-abdomino-perineal-resection-for-patients-with-anorectal-malignant-melanoma-a-report-of-4-cases
#4
Jun Han, Chuanbing Shi, Xiaogang Dong, Jie Wang, Hao Wen, Baolin Wang, Zhenyu He
Anorectal malignant melanoma is a very rare but lethal disease. Patients with anorectal malignant melanoma commonly complain for changes in bowel habits and rectal bleeding. Therefore, anorectal malignant melanoma is often misdiagnosed as hemorrhoids, polyp or rectal cancer. Surgery is the mainstay of treatment for patients with anorectal malignant melanoma. However, whether abdominoperineal resection or wide local excision is the most appropriate surgical approach is still a controversial issue. Recently, with the great development of laparoscopic techniques, more and more operations can be performed by laparoscopic techniques...
September 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27845306/effects-of-aspartame-on-hsp70-bcl-2-and-bax-expression-in-immune-organs-of-wistar-albino-rats
#5
Arbind Kumar Choudhary, Rathinasamy Sheela Devi
Aspartame, a "first generation sweetener", is widely used in a variety of foods, beverages, and medicine. The FDA has determined the acceptable daily intake (ADI) value of aspartame to be 50 mg/kg·day, while the JECFA (Joint FAO/WHO Expert Committee on Food Additives) has set this value at 40 mg/kg of body weight/day. Safety issues have been raised about aspartame due to its metabolites, specifically toxicity from methanol and/or its systemic metabolites formaldehyde and formic acid. The immune system is now recognized as a target organ for many xenobiotics, such as drugs and chemicals, which are able to trigger unwanted apoptosis or to alter the regulation of apoptosis...
September 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27845305/the-impact-of-endplate-fracture-on-postoperative-vertebral-height-loss-and-kyphotic-deformity-during-treatment-of-osteoporotic-vertebral-compression-fractures-with-balloon-kyphoplasty
#6
Qingqing Li, Long Xiao, Jianwei Zhang, Jin Fan, Wei Zhou, Guoyong Yin, Yongxin Ren
This retrospective study investigated the impact of endplate fracture on postoperative vertebral height loss and kyphotic deformity in 144 patients with osteoporotic vertebral compression fracture (OVCF), who received balloon kyphoplasty. Patients were divided into four groups: Group 1 had no superior endplate fracture, Group 2 had fractures on the anterior portion of the superior endplate, Group 3 had fractures on the posterior portion of the superior endplate, and Group 4 had complete superior endplate fractures...
September 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27845304/partial-aortic-root-remodeling-for-root-reconstruction-in-patients-with-acute-type-a-dissection
#7
Fuhua Huang, Liangpeng Li, Wei Qin, Cunhua Su, Liming Wang, Liqiong Xiao, Xin Chen
In the present study, we reported our experience with partial aortic root remodeling for root reconstruction in patients with acute type A dissection, which involves in non-coronary sinus and/or the right coronary sinus with just one trimmed Dacron graft. Between February 2001 and May 2010, we performed partial aortic root remodeling in 40 patients, who underwent emergency surgical intervention. The dissected sinuses were excised leaving a 3-5 mm rim of the aortic wall from the attached aortic valve cusps. A short piece (4-5 cm) of collagen coated woven polyester vascular prosthesis was trimmed with one or two "tongues" to reconstruct the non-coronary sinus and/or the right coronary sinus, but without using separated patches...
September 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27845303/new-insights-into-estrogenic-regulation-of-o-6-methylguanine-dna-methyltransferase-mgmt-in-human-breast-cancer-cells-co-degradation-of-er-%C3%AE-and-mgmt-proteins-by-fulvestrant-or-o-6-benzylguanine-indicates-fresh-avenues-for-therapy
#8
Ameya Paranjpe, Nathan I Bailey, Santhi Konduri, George C Bobustuc, Francis Ali-Osman, Mohd A Yusuf, Surendra R Punganuru, Hanumantha Rao Madala, Debasish Basak, Agm Mostofa, Kalkunte S Srivenugopal
Endocrine therapy using estrogen receptor-α (ER-α) antagonists for attenuating horm2one-driven cell proliferation is a major treatment modality for breast cancers. To exploit any DNA repair deficiencies associated with endocrine therapy, we investigated the functional and physical interactions of ER-α with O(6)-methylguanine DNA methyltransferase (MGMT), a unique DNA repair protein that confers tumor resistance to various anticancer alkylating agents. The ER-α -positive breast cancer cell lines (MCF-7, T47D) and ER- negative cell lines (MDAMB-468, MDAMB-231), and established inhibitors of ER-α and MGMT, namely, ICI-182,780 (Faslodex) and O(6)-benzylguanine, respectively, were used to study MGMT- ER interactions...
September 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27845302/developing-a-tool-for-nurses-to-assess-risk-of-infection-in-pediatric-oncology-patients-in-china-a-modified-delphi-study
#9
Yufeng Zhou, Yan Cui, Hong Wang, Fang Wang, Chao Lu, Yan Shen
Infections are identified as the most common preventable cause of death in pediatric oncology patients. Assessing and stratifying risk of infections are essential to prevent infection in these patients. To date, no tool can fulfill this demand in China. This study aimed to develop a nursing work-based and Chinese-specific tool for pediatric nurses to assess risk of infection in oncology patients. This research was a modified Delphi study. Based on a literature review, a 37-item questionnaire rating on a 0-5 scale was developed...
September 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27845301/effects-of-epinephrine-on-angiogenesis-related-gene-expressions-in-cultured-rat-cardiomyocytes
#10
Henry Liu, Lisa Sangkum, Geoffrey Liu, Michael Green, Marilyn Li, Alan Kaye
Epinephrine is often used for the treatment of patients with heart failure, low cardiac output and cardiac arrest. It can acutely improve hemodynamic parameters; however, it does not seem to improve longer term clinical outcomes. Therefore, we hypothesized that epinephrine may induce unfavorable changes in gene expression of cardiomyocyte. Thus, we investigated effects of epinephrine exposure on the mediation or modulation of gene expression of cultured cardiomyocytes at a genome-wide scale. Our investigation revealed that exposure of cardiomyocytes to epinephrine in an in vitro environment can up-regulate the expression of angiopoietin-2 gene (+2...
September 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27845300/effects-of-renal-sympathetic-denervation-on-cardiac-systolic-function-after-myocardial-infarction-in-rats
#11
Jiqun Guo, Zhongxia Zhou, Zhenzhen Li, Qian Liu, Guoqing Zhu, Qijun Shan
This study investigated the therapeutic effects of renal denervation on cardiac systolic function after myocardial infarction (MI) in rats and the mechanism involved. Fifty male SD rats were randomly assigned to the sham group (n = 15), the MI group (n = 20), and the MI plus renal denervation group (n = 15). MI was established through thoracotomic ligation of the anterior descending artery. Renal denervation was achieved by laparotomic stripping of the renal arterial adventitial sympathetic nerve, approximately 3 mm from the abdominal aorta...
September 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27845299/use-of-biologically-synthesized-antimicrobial-nanoparticles-for-improving-peritoneal-dialysis-technique-a-translational-research-perspective
#12
Dinesh Kumar
No abstract text is available yet for this article.
September 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27476881/autoantibodies-in-alzheimer-s-disease-potential-biomarkers-pathogenic-roles-and-therapeutic-implications
#13
REVIEW
Jianming Wu, Ling Li
Alzheimer's disease (AD) is a prevalent and debilitating neurodegenerative disorder in the elderly. The etiology of AD has not been fully defined and currently there is no cure for this devastating disease. Compelling evidence suggests that the immune system plays a critical role in the pathophysiology of AD. Autoantibodies against a variety of molecules have been associated with AD. The roles of these autoantibodies in AD, however, are not well understood. This review attempts to summarize recent findings on these autoantibodies and explore their potential as diagnostic/prognostic biomarkers for AD, their roles in the pathogenesis of AD, and their implications in the development of effective immunotherapies for AD...
September 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27346466/deciphering-the-role-of-hedgehog-signaling-in-pancreatic-cancer
#14
REVIEW
Dongsheng Gu, Kelly E Schlotman, Jingwu Xie
Pancreatic cancer, mostly pancreatic ductal adenocarcinoma (PDAC), is a leading cause of cancer-related death in the US, with a dismal median survival of 6 months. Thus, there is an urgent unmet need to identify ways to diagnose and to treat this deadly cancer. Although a number of genetic changes have been identified in pancreatic cancer, their mechanisms of action in tumor development, progression and metastasis are not completely understood. Hedgehog signaling, which plays a major role in embryonic development and stem cell regulation, is known to be activated in pancreatic cancer; however, specific inhibitors targeting the smoothened molecule failed to improve the condition of pancreatic cancer patients in clinical trials...
September 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27533941/identification-of-lineariifolianoid-a-as-a-novel-dual-nfat1-and-mdm2-inhibitor-for-human-cancer-therapy
#15
Jiang-Jiang Qin, Sushanta Sarkar, Sukesh Voruganti, Rajesh Agarwal, Wei Wang, Ruiwen Zhang
There is an increasing interest in development of novel anticancer agents that target oncogenes. We have recently discovered that nuclear factor of activated T cells 1 (NFAT1) is a novel regulator of the Mouse Double Minute 2 (MDM2) oncogene and the NFAT1-MDM2 pathway has been implicated in human cancer development and progression, justifying that targeting the NFAT1-MDM2 pathway could be a novel strategy for discovery and development of novel cancer therapeutics. The present study was designed to examine the anticancer activity and underlying mechanisms of action of lineariifolianoid A (LinA), a novel natural product inhibitor of the NFAT1-MDM2 pathway...
July 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27533940/pharmacological-advantages-of-melatonin-in-immunosenescence-by-improving-activity-of-t-lymphocytes
#16
Yeong-Min Yoo, Su Kil Jang, Gwang-Hoon Kim, Jung-Youl Park, Seong-Soo Joo
Melatonin plays a critical role in regulating photoperiodic signals and has recently been shown to decrease immunosenescence with age. In this study, we examined whether melatonin activates T lymphocytes as major adaptive immune cells in in vitro and in vivo models. Splenocytes, CD4(+), and naïve CD4 T lymphocytes were isolated from the spleen of BALB/c mice and the cell population patterns and mRNA profiles associated with T cell activation (CD28 and p21) and the melatonin receptor (MT1A and MT1B) were assessed...
July 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27533939/immunogenicity-and-protective-efficacy-of-dna-vaccine-against-visceral-leishmaniasis-in-balb-c-mice
#17
Sukhbir Kaur, Tejinder Kaur, Jyoti Joshi
The current study was designed to examine the protective efficacy of DNA vaccines based on gp63 and Hsp70 against murine visceral leishmaniasis. Inbred BALB/c mice were immunized subcutaneously twice at an interval of three weeks with pcDNA3.1(+) encoding T cell epitopes of gp63 and Hsp70 individually and in combination. Animals were challenged intracardially with 10(7) promastigotes of Leishmania donovani 10 days post immunization and sacrificed 1, 2 and 3 months post challenge. The immunized animals revealed a significant reduction (P < 0...
July 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27533938/characterization-of-integrons-and-novel-cassette-arrays-in-bacteria-from-clinical-isloates-in-china-2000-2014
#18
Wenying Xia, Ting Xu, Tingting Qin, Pengpeng Li, Yun Liu, Haiquan Kang, Bing Gu, Ping Ma
Rapid dissemination of antibiotic resistance genes among bacterial isolates is an increasing problem in China. Integron, a conserved DNA sequence, which is carried on episomal genetic structures, plays a very important role in development of antibiotic resistance. This systematic analysis was based on MEDLINE and EMBASE databases. We summarized the distribution and proportion of different types of gene cassette arrays of integrons (including class 1, 2, 3 and atypical class 1 integron) from clinical bacteria isolates in China...
July 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27533937/clinical-usefulness-of-ankle-brachial-index-and-brachial-ankle-pulse-wave-velocity-in-patients-with-ischemic-stroke
#19
Hyung-Suk Lee, Hye Lim Lee, Ho-Seong Han, Minju Yeo, Ji Seon Kim, Sung-Hyun Lee, Sang-Soo Lee, Dong-Ick Shin
Ankle brachial index (ABI) and brachial-ankle pulse wave velocity (baPWV) are widely used noninvasive modalities to evaluate atherosclerosis. Recently, evidence has increased supporting the use of ABI and baPWV as markers of cerebrovascular disease. This study sought to examine the relationship between ABI and baPWV with ischemic stroke. This study also aimed to determine which pathogenic mechanism, large artery disease (LAD) or small vessel disease (SVD), is related to ABI or baPWV. Retrospectively, 121 patients with ischemic stroke and 38 subjects with no obvious ischemic stroke history were recruited...
July 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/27533936/recent-advances-in-targeting-the-autotaxin-lysophosphatidate-lipid-phosphate-phosphatase-axis-in-vivo
#20
REVIEW
Matthew G K Benesch, Xiaoyun Tang, Ganesh Venkatraman, Raie T Bekele, David N Brindley
Extracellular lysophosphatidate (LPA) is a potent bioactive lipid that signals through six G-protein-coupled receptors. This signaling is required for embryogenesis, tissue repair and remodeling processes. LPA is produced from circulating lysophosphatidylcholine by autotaxin (ATX), and is degraded outside cells by a family of three enzymes called the lipid phosphate phosphatases (LPPs). In many pathological conditions, particularly in cancers, LPA concentrations are increased due to high ATX expression and low LPP activity...
July 2016: Journal of Biomedical Research
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