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| 1 | Follow-up of intestinal metaplasia in the stomach: When, how and why显示文摘Gastric cancer remains the second most frequent cause of cancer-related mortality in the world. Screening programs in some Asian countries are impractical in the majority of other countries worldwide. Therefore, follow-up of precancerous lesions is advisable for secondary gastric cancer prevention. Intestinal metaplasia (IM) is recognized as a precancerous lesion for gastric cancer, increasing the risk by 6-fold. IM is highly prevalent in the general population, being detected in nearly 1 of every 4 patients undergoing upper endoscopy. The IM prevalence rate is significantly higher in patients with Helicobacter pylori (H. pylori) infection, in first-degree relatives of gastric cancer patients, in smokers and it increases with patient age. IM is the 'breaking point' in the gastric carcinogenesis cascade and does not appear to regress following H. pylori eradication, although the cure of infection may slow its progression. Gastric cancer risk is higher in patients with incomplete-type IM, in those with both antral and gastric body involvement, and the risk significantly increases with IM extension over 20% of the gastric mucosa. Scheduled endoscopic control could be cost-effective in IM patients, depending on the yearly incidence of gastric cancer in IM patients, the stage of gastric cancer at diagnosis discovered at surveillance, and the cost of endoscopy. As a pragmatic behavior, yearly endoscopic control would appear justified in all IM patients with at least one of these conditions: (1) IM extension > 20%; (2) the presence of incomplete type IM; (3) first-degree relative of gastric cancer patients; and (4) smokers. In the remaining IM patients, a less intensive (2-3 years) could be proposed. | Angelo Zullo Cesare Hassan Adriana Romiti Michela Giusto Carmine Guerriero Roberto Lorenzetti Salvatore MA Campo Silverio Tomao | 2012 | World Journal of Gastrointestinal Oncology2012，4，3： | 25 |
| 2 | Connexin 43 hemichannels protect bone loss during estrogen deficiency显示文摘Estrogen deficiency in postmenopausal women is a major cause of bone loss,resulting in osteopenia,osteoporosis,and a high risk for bone fracture.Connexin 43 (Cx43) hemichannels (HCs) in osteocytes play an important role in osteocyte viability,bone formation,and remodeling.We showed here that estrogen deficiency reduced Cx43 expression and HC function.To determine if functional HCs protect osteocytes and bone loss during estrogen deficiency,we adopted an ovariectomy model in wild-type (WT) and two transgenic Cx43 mice:R76W (dominant-negative mutant inhibiting only gap junction channels) and Cx43 Δ130–136 (dominant-negative mutant compromising both gap junction channels and HCs).The bone mineral density (BMD),bone structure,and histomorphometric changes of cortical and trabecular bones after ovariectomy were investigated.Our results showed that the Δ130–136 transgenic cohort had greatly decreased vertebral trabecular bone mass compared to WT and R76W mice,associated with a significant increase in the number of apoptotic osteocyte and empty lacunae.Moreover,osteoclast surfaces in trabecular and cortical bones were increased after ovariectomy in the R76W and WT mice,respectively,but not in Δ130–136 mice.These data demonstrate that impairment of Cx43 HCs in osteocytes accelerates vertebral trabecular bone loss and increase in osteocyte apoptosis,and further suggest that Cx43 HCs in osteocytes protect trabecular bone against catabolic effects due to estrogen deficiency. | Liang Ma Rui Hua Yi Tian Hongyun Cheng Roberto Jose Fajardo Joseph J. Pearson Teja Guda Daniel Brian Shropshire Sumin Gu Jean X. Jiang | 2019 | Bone Research2019，7，2： | 11 |
| 3 | Resequencing of 145 Landmark Cultivars Reveals Asymmetric Sub-genome Selection and Strong Founder Genotype Effects on Wheat Breeding in China显示文摘Controlled pedigrees and the multi-decade timescale of national crop plant breeding programs offer a unique experimental context for examining how selection affects plant genomes.More than 3000 wheat cultivars have been registered,released,and documented since 1949 in China.In this study,a set of 145 elite cultivars selected from historical points of wheat breeding in China were re-sequenced.A total of 43.75 Tb of sequence data were generated with an average read depth of 17.94x for each cultivar,and more than 60.92 million SNPs and 2.54 million InDels were captured,based on the Chinese Spring RefSeq genome v1.0.Seventy years of breeder-driven selection led to dramatic changes in grain yield and related phenotypes,with distinct genomic regions and phenotypes tar-geted by different breeders across the decades.There are very clear instances illustrating how introduced Italian and otherforeign germplasm was integrated into Chinese wheat programs and reshaped the genomic landscape of local modern cultivars.Importantly,the resequencing data also highlighted significant asymmetric breeding selec-tion among the three sub-genomes:this was evident in both the collinear blocks for homeologous chromosomes and among sets of three homeologous genes.Accumulation of more newly assembled genes in newer cultivars implied the potential value of these genes in breeding.Conserved and extended sharing of linkage disequilibrium(LD)blocks was highlighted among pedigree-related cultivars,in which fewer haplotype differences were detected.Fixation or replacement of haplotypes from founder genotypes after generations of breeding was related to their breeding value.Based on the haplotype frequency changes in LD blocks of pedigree-related cultivars,we propose a strategy for evaluating the breeding value of any given line on the basis of the accumulation(pyramiding)of bene-ficial haplotypes.Collectively,our study demonstrates the influence of 'founder genotypes' on the output of breeding efforts over many decades and also suggests that founder genotype perspectives are in fact more dy-namic when applied in the context of modern genomics-informed breeding. | Chenyang Hao Chengzhi Jiao Jian Hou Tian Li Hongxia Liu Yuquan Wang Jun Zheng Hong Liu Zhihong Bi Fengfeng Xu Jing Zhao Lin Ma Yamei Wang Uzma Majeed Xu Liu Rudi Appels Marco Maccaferri Roberto Tuberosa Hongfeng Lu Xueyong Zhang | 2020 | Molecular Plant2020，13，12： | 9 |
| 4 | Neurocognitive Graphs of First-Episode Schizophrenia and Major Depression Based on Cognitive Features显示文摘Neurocognitive deficits are frequently observed in patients with schizophrenia and major depressive disorder(MDD). The relations between cognitive features may be represented by neurocognitive graphs based on cognitive features, modeled as Gaussian Markov random fields. However, it is unclear whether it is possible to differentiate between phenotypic patterns associated with the differential diagnosis of schizophrenia and depression using this neurocognitive graph approach. In this study, we enrolled 215 first-episode patients with schizophrenia(FES), 125 with MDD, and 237 demographically-matched healthy controls(HCs). The cognitive performance of all participants was evaluated using a battery of neurocognitive tests. The graphical LASSO model was trained with aone-vs-one scenario to learn the conditional independent structure of neurocognitive features of each group. Participants in the holdout dataset were classified into different groups with the highest likelihood. A partial correlation matrix was transformed from the graphical model to further explore the neurocognitive graph for each group. The classification approach identified the diagnostic class for individuals with an average accuracy of 73.41% for FES vs HC, 67.07% for MDD vs HC, and 59.48% for FES vs MDD. Both of the neurocognitive graphs for FES and MDD had more connections and higher node centrality than those for HC. The neurocognitive graph for FES was less sparse and had more connections than that for MDD.Thus, neurocognitive graphs based on cognitive features are promising for describing endophenotypes that may discriminate schizophrenia from depression. | Sugai Liang Roberto Vega Xiangzhen Kong Wei Deng Qiang Wang Xiaohong Ma Mingli Li Xun Hu Andrew J.Greenshaw Russell Greiner Tao Li | 2018 | Neuroscience Bulletin2018，34，2： | 6 |
| 5 | Recent advances in lentiviral vectors for gene therapy显示文摘Lentiviral vectors(LVs), derived from human immunodeficiency virus, are powerful tools for modifying the genes of eukaryotic cells such as hematopoietic stem cells and neural cells. With the extensive and in-depth studies on this gene therapy vehicle over the past two decades, LVs have been widely used in both research and clinical trials. For instance, third-generation and selfinactive LVs have been used to introduce a gene with therapeutic potential into the host genome and achieve targeted delivery into specific tissue. When LVs are employed in leukemia, the transduced T cells recognize and kill the tumor B cells;in β-thalassemia, the transduced CD34^(+) cells express normal β-globin;in adenosine deaminase-deficient severe combined immunodeficiency, the autologous CD34^(+) cells express adenosine deaminase and realize immune reconstitution. Overall, LVs can perform significant roles in the treatment of primary immunodeficiency diseases, hemoglobinopathies, B cell leukemia, and neurodegenerative diseases. In this review, we discuss the recent developments and therapeutic applications of LVs. The safe and efficient LVs show great promise as a tool for human gene therapy. | Xiaoyu Wang Cuicui Ma Roberto Rodríguez Labrada Zhou Qin Ting Xu Zhiyao He Yuquan Wei | 2021 | Science China(Life Sciences)2021，64，11： | 4 |
| 6 | Rifaximin therapy and hepatic encephalopathy:Pros and cons显示文摘Hepatic encephalopathy(HE) is the second most common major complication in cirrhotics and it significantly impacts quality of life.Therapeutic approaches for HE treatment and prevention mainly continue to rely on ammonia-lowering strategies and non-absorbable disaccharides are currently considered the cornerstone therapy.Non-absorbable antibiotics,such as neomycin and paramomycin,are effective in treatment of acute HE episodes but their prolonged use for recurrence prevention is hampered by possible side-effects.To overcome these limitations,rifaximin use has been proposed.Rifaximin has been shown to be not superior to non-absorbable disaccharides for either HE treatment or prevention,with a similar incidence of side-effects.Cirrhosis significantly increases rifaximin absorption and this could be a cause for concern.Following long-term rifaximin therapy,Clostridium difficile colitis has been observed and Candida albicans has been isolated from 20% of patients.In addition,selection of resistant mutants of both Gram-negative and-positive bacteria in the gastrointestinal tract cannot be definitely ruled out.Electrolyte alterations(sodium and potassium) have been reported during rifaximin therapy,a warning for its long-term use in cirrhotics.Moreover,a potential interference with vitamin K production should be considered which could further impair the already altered clotting status of these patients.The therapeutic cost of rifaximin is markedly higher than non-absorbable disaccharides.While waiting for further safety data,caution should be used to limit the use of rifaximin therapy for a very short-term period in selected HE cirrhotics not responding to nonabsorbable disaccharides. | Angelo Zullo Cesare Hassan Lorenzo Ridola Roberto Lorenzetti Salvatore MA Campo Oliviero Riggio | 2012 | World Journal of Gastrointestinal Pharmacology and Therapeutics2012，3，4： | 2 |
| 7 | The demand elasticity impacts on the strategic bidding behavior of the electricity producers显示文摘 | Ettore Bompard Ma Yuchao Roberto Napoli | 2007 | IEEE Transactions on Power Systems2007，22，1： | 1 |
| 8 | Aperture-coupled patch antenna on UC-PBG substrate显示文摘 | Yang F R Ma K P | 1999 | IEEE Transactions on Microwave Theory and Techniques1999，47，11： | 1 |
| 9 | Mandibular changes in skeletal Class 11 patients treated with Kloehn cervical headgear显示文摘 | Roberto MA Filhol | 2003 | Am J Orthod Dentofacial Orthop2003，2，1： | 1 |
| 10 | Milbemectin Resistance in Tetranychus urticae(Acari: Tetranychidag): Selection, Stabilityand Cross-resistance to Abamectin显示文摘 | ROBERTO L N MA'RIO E S MARCOS Z D | 2010 | J Exp Appl Acarol2010，50，： | 1 |
| 11 | Aperture-coupled patch antenna on UC-PBG substrate 显示文摘 | Coccioli Roberto Yang Fei-ran Ma Kuang-ping | 1999 | IEEE Trans Microwave Theory and Techniques1999，47，11： | 1 |
| 12 | Shoulder biomechanics 显示文摘 | Roberto LR Peter KP Ma CB | 2008 | Eur J Radioi2008，68，1： | 1 |
| 13 | The central amygdala as an integrative hub for anxiety and alcohol use disorders 显示文摘 | Gilpin NW Herman MA Roberto M | 2015 | Biol Psy- chiatry2015，77，： | 1 |
| 14 | Shoulder biomechonics显示文摘 | Roberto LR Peter KP Ma CB | 2008 | Eur J Radiol2008，68，1： | 1 |
| 15 | Evaluation of consumer understanding of different front-of package nutrition Iabels, 2010-2011 显示文摘 | Roberto CA Bragg MA Seamans ] et a7 | 2012 | frevChronicDis2012，9，12： | 1 |
| 16 | Exergy Accounting of Energy and Materials Flows in Steel Production systems 显示文摘 | MA' RCIO MACDDO COSTA ROBERTO SCHAEFFER ERNST WORRELL | 2001 | Energy2001，26，： | 1 |
| 17 | Policosanol modulates HMG-CoA reductase activity in cultured fibroblasts显示文摘 | Roberto Menendez Ana Ma Amor Idania Rodeiro | 2001 | Archives of Medical Research2001，32，： | 1 |
| 18 | Exergy accounting of energy and materials flows in steel production systems显示文摘 | Ma′rcio M C Roberto S Ernst W | 2001 | Energy2001，26，： | 1 |
| 19 | Preparation and Characterization of Poly(arylenevinylene) Copolymers and Their Blends 显示文摘 | Roberto Ma Gregorius Paul M Lahti | 1992 | Macromolecules1992，25，： | 1 |
| 20 | Body temperature rhythms,cold tolerance,and fever in young and old rats of both genders显示文摘 | Roberto Refinetti Hua Ma Evelyn Satinoff | 1990 | Experimental Gerontology1990，25，6： | 1 |
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