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Archives of Medical Research

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https://www.readbyqxmd.com/read/29292011/gut-microbiota-in-obesity-and-metabolic-abnormalities-a-matter-of-composition-or-functionality
#1
REVIEW
Sofia Moran-Ramos, Blanca E López-Contreras, Samuel Canizales-Quinteros
The obesity pandemic and the metabolic complications derived from it represent a major public health challenge worldwide. Although obesity is a multifactorial disease, research from the past decade suggests that the gut microbiota interacts with host genetics and diet, as well as with other environmental factors, and thus contributes to the development of obesity and related complications. Despite abundant research on animal models, substantial evidence from humans has only started to accumulate over the past few years...
December 29, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29290328/human-intestinal-microbiota-interaction-between-parasites-and-the-host-immune-response
#2
REVIEW
Oswaldo Partida-Rodríguez, Angélica Serrano-Vázquez, Miriam E Nieves-Ramírez, Patricia Moran, Liliana Rojas, Tobias Portillo, Enrique González, Eric Hernández, B Brett Finlay, Cecilia Ximenez
The human gut is a highly complex ecosystem with an extensive microbial community, and the influence of the intestinal microbiota reaches the entire host organism. For example, the microbiome regulates fat storage, stimulates or renews epithelial cells, and influences the development and maturation of the brain and the immune system. Intestinal microbes can protect against infection by pathogenic bacteria, viruses, fungi and parasites. Hence, the maintenance of homeostasis between the gut microbiota and the rest of the body is crucial for health, with dysbiosis affecting disease...
December 28, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29258680/conditional-inference-tree-for-multiple-gene-environment-interactions-on-myocardial-infarction-among-chinese-men
#3
Zhijun Wu, Xiuxiu Su, Haihui Sheng, Yanjia Chen, Xiang Gao, Le Bao, Wei Jin
BACKGROUND AND AIMS: Identifying gene-environment interaction in the context of multiple environmental factors has been a challenging task. We aimed to use conditional inference tree (CTREE) to strata myocardial infarction (MI) risk synthesizing information from both genetic and environmental factors. METHODS: We conducted a case-control study including 1440 Chinese men (730 MI patients and 710 controls). We first calculated a weighted genetic risk score (GRS) by combining 25 single nucleotide polymorphisms (SNPs) that had been identified to be associated with coronary artery diseases in previous genome wide association studies...
December 16, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29249587/correlations-of-serum-cyclophilin-a-and-melatonin-concentrations-with-hypertension-induced-left-ventricular-hypertrophy
#4
Hongyan Su, Tongshuai Chen, Jingyuan Li, Jie Xiao, Shujian Wang, Xiaobin Guo, Peili Bu
BACKGROUND AND AIMS: Cyclophilin A (CyPA) is an abundantly expressed pro-inflammatory cytokine and a major secreted oxidative stress-induced factor (SOXF). Melatonin is an important chronobiological regulatory molecule that is mainly released from the pineal gland and exerts antioxidant effects by acting as a radical scavenger. Based on accumulating evidence, both CyPA and melatonin play important roles in cardiovascular diseases. However, further investigations are required to determine whether CyPA and melatonin are associated with hypertension-induced left ventricular hypertrophy (LVH)...
December 14, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29248174/synthesis-and-anticancer-activity-of-novel-ureas-and-sulfamides-incorporating-1-aminotetralins
#5
Bünyamin Özgeriş, Yusuf Akbaba, Özlem Özdemir, Hasan Türkez, Süleyman Göksu
BACKGROUND AND AIMS: In the present study, a series of ureas and sulfamides derived from 1-aminotetralins were synthesized. For this purpose, urea and sulfamide analogues were synthesized from the reactions of substituted 1-aminotetralins with N,N-dimethylcarbamoyl chloride and N,N-dimethylsulfamoyl chloride. The anticancer activity of newly synthesized compounds was tested against human U-87MG glioblastoma and PC-3 prostate cancer cell lines. Cytotoxicity was examined using MTT and LDH release assays...
December 13, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29229199/microbiota-and-aging-a-review-and-commentary
#6
REVIEW
Carmen García-Peña, Teresa Álvarez-Cisneros, Ricardo Quiroz-Baez, Robert P Friedland
Although there is a consensus that the dominant species that make up the adult microbiota remains unchanged in elderly people, it has been reported that there are significant alterations in the proportion and composition of the different taxa, leading to reduced microbiota diversity, as well as an increase of enteropathogens that may lead to chronic inflammation. The ageing of mucosal immune and motor systems also contributes to these changes. As the individual ages, there is a loss in the number of Peyer's patches, an altered local capacity of T and B cell functions as well as chronic macrophage activation...
December 8, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29229198/combined-raloxifene-and-letrozole-for-breast-cancer-patients
#7
Divya Vohora, Abul Kalam, Ankita Leekha, Sushama Talegaonkar, Anita Kamra Verma
Raloxifene, an anti-osteoporotic drug, is recently approved for prevention of breast cancer in postmenopausal women and thus the drug may be employed to combat the bony adverse effects of letrozole, another anticancer drug. However, the cytotoxic effect of their combination on human breast cancer (MCF-7) and human embryonic kidney (HEK) cell lines is not known. MCF-7 and HEK cell lines were treated with different graded doses of letrozole, raloxifene and their combination, then incubated for 24-48 h. MTT assay was performed to check the cytotoxicity of the drugs...
December 8, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29224910/regulation-of-sirt3-foxo1-signaling-pathway-in-rats-with-non-alcoholic-steatohepatitis-by-salvianolic-acid-b
#8
Yingchun Wang, Juan Chen, Weizong Kong, Ruiping Zhu, Kai Liang, Quanxiang Kan, Yanhong Lou, Xiangyu Liu
AIMS: To explore the effect of salvianolic acid B (Sal B) on regulation of SIRT3/FOXO1 signaling pathway in rats with non-alcoholic steatohepatitis (NASH). METHODS: Sixty Sprague Dawley (SD) rats were randomly divided into control, model and treatment groups. After 12 weeks of successful model establishment with high fat diet, treatment group was given Sal B by intragastric administration. After 12 weeks of treatment, rats were sacrificed and livers were taken to test indicators such as liver index, TG, TC, ALT, AST, reactive oxygen species (ROS) by DCFH-DA probe, SOD2 activity by WST-8 test...
December 7, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29224909/hygiene-hypothesis-in-asthma-development-is-hygiene-to-blame
#9
REVIEW
Erik van Tilburg Bernardes, Marie-Claire Arrieta
Industrialized countries have registered epidemic rates on allergic diseases, such as hay fever, asthma, eczema, and food allergies. The Hygiene Hypothesis was born from work made by Dr. David Strachan, who observed that younger siblings were less susceptible to eczema and asthma, and proposed that this was a result of increased transmission of infectious agents via unhygienic practices within a household. This initial hypothesis was then reframed as the old friends/microbiota hypothesis, implicating non-pathogenic commensal microorganisms as the source of immunomodulatory signals necessary to prevent immune-mediated chronic disorders...
December 7, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29221803/optimizing-non-pharmacologic-management-of-hypertriglyceridemia
#10
REVIEW
Alexandra Byrne, Sunal Makadia, Aimee Sutherland, Michael Miller
The cornerstone of initial management for hypertriglyceridemia (HTG) is lifestyle modification. The combination of weight loss through caloric restriction, alteration in macronutrient composition and increased energy expenditure reduces TG levels by approximately 50%. The addition of cinnamon, cacao products and isocaloric substitution of 1 serving of nuts may contribute another 5-15% lowering of TG. This can be particularly beneficial in patients with HTG who are at increased risk of cardiovascular disease...
December 5, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29221802/inflammation-in-the-prediction-of-type-2-diabetes-and-hypertension-in-healthy-adults
#11
Ki-Chul Sung, Seungho Ryu, Joo-Wook Sung, Yong Bum Kim, Yu Sam Won, Dong Sik Cho, Sun H Kim, Alice Liu
BACKGROUND: While inflammation is associated with obesity and insulin resistance, their inter-relationships in the development of type 2 diabetes or hypertension are not clear. AIM OF THE STUDY: To evaluate inflammatory markers in prediction of type 2 diabetes and hypertension. METHODS: The study population of this retrospective cohort study consisted of individuals who participated in a comprehensive health screening program with measurement of white blood cell count and C-reactive protein from 2002-2010 (N = 96,606) in nondiabetic and normotensive Koreans...
December 5, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29221801/donor-polymorphisms-of-toll-like-receptor-4-rs1927914-associated-with-the-risk-of-hepatocellular-carcinoma-recurrence-following-liver-transplantation
#12
Guangjun Shi, Chuanxu Wang, Ping Zhang, Lisha Ji, Shifeng Xu, Xueying Tan, Hao Li
BACKGROUND: Hepatocellular carcinoma (HCC) recurrence after liver transplantation (LT) severely restricts the long-term survival of patients. Toll-like receptor 4 (TLR4) has been considered to be involved in hepatocarcinogenesis and metastasis. Additionally, there is a study demonstrating the significant association between TLR4 gene rs1927914 polymorphism and HCC, but no study investigated the association of the TLR4 rs1927914 polymorphism with the risk of HCC recurrence following LT...
December 5, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29221800/gut-microbiome-and-antibiotics
#13
REVIEW
Tadasu Iizumi, Thomas Battaglia, Victoria Ruiz, Guillermo I Perez Perez
Despite that the human gastrointestinal tract is the most populated ecological niche by bacteria in the human body, much is still unknown about its characteristics. This site is highly susceptible to the effects of many external factors that may affect in the quality and the quantity of the microbiome. Specific factors such as diet, personal hygiene, pharmacological drugs and the use of antibiotics can produce a significant impact on the gut microbiota. The effect of these factors is more relevant early in life, when the gut microbiota has not yet fully established...
December 5, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29203054/on-the-search-to-elucidate-the-role-of-the-microbiota-in-the-genesis-of-cancer-the-cases-of-gastrointestinal-and-cervical-cancer
#14
REVIEW
Francisco Avilés-Jiménez, Yu Guogin, Kirvis Torres-Poveda, Vicente Madrid-Marina, Javier Torres
The microbiota that inhabits the human body plays an important role in health and disease, by their fundamental role in food digestion, training of the immune system or protection against pathogen colonization. However, when the equilibrium with its host is altered, some diseases like cancer might be promoted. In this review we describe the information collected in recent studies between the microbiota and its association with cancer. We conducted the review of the relation of microbiome and cancer etiology focusing on the gastrointestinal and cervical cancer...
December 1, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29203053/insulin-like-growth-factor-1-mediates-adrenal-development-dysfunction-in-offspring-rats-induced-by-prenatal-food-restriction
#15
Zheng He, Feng Lv, Yufeng Ding, Chunyan Zhu, Hegui Huang, Li Zhang, Yu Guo, Hui Wang
BACKGROUND: Our previous study demonstrated that prenatal food restriction (PFR) could induce the dysfunction of the hypothalamic-pituitary-adrenal axis and glucocorticoid-related glucose and lipid metabolic alterations in adult offspring rats. AIM OF THE STUDY: To investigate the intrauterine programming mechanism of adrenal dysfunction in the PFR offspring rats. METHODS: From gestational days (GDs) 11-20, pregnant Wistar rats were fed a restricted diet (50% of the daily food intake of control rats, 60 g/kg·d)...
December 1, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29198451/development-of-the-microbiota-in-infants-and-its-role-in-maturation-of-the-gut-mucosa-and-the-immune-system
#16
Cecilia Ximenez, Javier Torres
Dysbiosis of the gut microbiota has been associated with increasing numbers of diseases, including obesity, diabetes, inflammatory bowel disease, asthma, allergy, cancer and even neurologic or behavioral disorders. The other side of the coin is that a healthy microbiota leads to a healthy human development, to a mature and well trained immune system and to an efficient metabolic machinery. What we have learned in adults is in the end the result of a good start, a programmed, healthy development of the microbiota that must occur in the early years of life, probably even starting during the fetal stage...
November 30, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29198560/lipoamide-inhibits-nf1-deficiency-induced-epithelial-mesenchymal-transition-in-murine-schwann-cells
#17
Yuchen Zhang, Rongsheng Zhou, Yiping Qu, Maoguo Shu, Shuzhong Guo, Zhuanli Bai
BACKGROUND AND AIMS: Neurofibromatosis type I (NF1) is one of the most common neurocutaneous syndromes characterized by development of adult neurofibromas which is mainly made up of Schwann cells. The disease is generally accepted to be caused by inactivation mutation of Nf1 gene. And Nf1 deficiency had been reported to lead to ROS overproduction and epithelial-mesenchymal transition (EMT) phenotype. This study was designed to investigate whether excessive ROS conferred to Nf1 deficiency-induced EMT in Schwann cells...
November 29, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29183720/contemporary-applications-of-fecal-microbiota-transplantation-to-treat-intestinal-diseases-in-humans
#18
REVIEW
Christopher Staley, Alexander Khoruts, Michael J Sadowsky
The intestinal microbiota comprise an important organ that plays a vital role in host digestion, development, energy maintenance, hemostasis, and immunity. Disruption of the gut microbial community due to diet, lifestyle, or antibiotic exposure increases susceptibility to chronic infection and disease. Fecal microbiota transplantation (FMT) involves the transfer of gut microbiota from a healthy donor to a patient in order to restore normal diversity and function of the microbial community. This method has become a well established alternative therapy for the treatment of recurrent Clostridium difficile infection...
November 25, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29133194/effect-of-native-and-minimally-modified-low-density-lipoprotein-on-the-activation-of-monocyte-subsets
#19
Francisco Blanco-Favela, José Esteban Espinosa-Luna, Adriana Karina Chávez-Rueda, Alejandra Madrid-Miller, Luis Chávez-Sánchez
BACKGROUND: In atherosclerosis, monocytes are essential and secrete pro-inflammatory cytokines in response to modified low-density lipoprotein (LDL). Human CD14(++)CD16(-), CD14(++)CD16(+) and CD14(+)CD16(++) monocytes produce different cytokines. The objective of this research was to determine the number of monocyte subsets positives to cytokines in response to native (nLDL) and minimally modified LDL (mmLDL). METHODS: Human monocytes from healthy individuals were purified by negative selection and were stimulated with nLDL, mmLDL or LPS...
November 10, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29133193/prognostic-value-of-microrna-224-in-various-cancers-a-meta-analysis
#20
Yue Zhang, Cong-Cong Guo, Dong-Hui Guan, Chuan-Hua Yang, Yue-Hua Jiang
BACKGROUND: During previous studies, microRNA-224 (miR-224) was frequently investigated and discovered to be of vital significance to prognosis of patients with various cancers. However, its accurate prognostic value has not been estimated worldwide. Herein, we performed meta-analysis to assess its potential predictive value in a variety of human tumors. METHODS: Qualified researches were identified up to March 1, 2017 through performing online searches in PubMed, EMBASE, Web of Science and Cochrane Database of Systematic Reviews...
November 10, 2017: Archives of Medical Research
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