LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 201

Search options

  1. Book ; Online: Guarda compartida

    Rincón Andreu, Gerard / Ciréfice, Ronan / Molina Hincapié, Sergio

    la doctrina de las audiencias provinciales de cataluña y su evolución

    (Aequitas ; 1)

    2020  

    Series title Aequitas ; 1
    Keywords Arbitration, mediation & alternative dispute resolution ; Consejo Europeo ; Neoconstitucionalismo ; Policía ; Audiencias provinciales de Cataluña ; Derechos de participación en Ecuador
    Language 0|s
    Size 1 electronic resource (125-162 pages)
    Publisher Universidad Santiago de Cali
    Publishing place Colombia
    Document type Book ; Online
    Note Spanish ; Open Access
    HBZ-ID HT021609039
    ISBN 978-958-5583-98-6 ; 958-5583-98-4
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

    More links

    Kategorien

  2. Book ; Online: Derechos fundamentales y conflicto

    Ciréfice, Ronan / Molina Hincapié, Sergio / Matta Herrera, Alejandro / Restrepo Rodríguez, Rubén Darío / Rincón Andreu, Gerard / Solano Paucay, Vicente / Tarapués Sandino, Diego Fernando

    (Aequitas ; 1)

    2020  

    Series title Aequitas ; 1
    Keywords Arbitration, mediation & alternative dispute resolution ; Consejo Europeo ; Neoconstitucionalismo ; Policía ; Audiencias provinciales de Cataluña ; Derechos de participación en Ecuador delitos políticos,grupos armados ilegales
    Language 0|s
    Size 1 electronic resource (1-214 pages)
    Publisher Universidad Santiago de Cali
    Publishing place Colombia
    Document type Book ; Online
    Note Spanish ; Open Access
    HBZ-ID HT021609161
    ISBN 978-958-5583-98-6 ; 958-5583-98-4
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

    More links

    Kategorien

  3. Article ; Online: Ammonia surrogates in the synthesis of primary amines.

    Urbiña-Alvarez, Julia / Rincón-Carvajal, Sergio / Gamba-Sánchez, Diego

    Organic & biomolecular chemistry

    2023  Volume 21, Issue 35, Page(s) 7036–7051

    Abstract: Primary amines are derivatives of ammonia in which one hydrogen atom is replaced by an alkyl or aryl group. Ammonia serves as the primary nitrogen source in amination reactions, and its utilization in solution or as a pure gas has witnessed notable ... ...

    Abstract Primary amines are derivatives of ammonia in which one hydrogen atom is replaced by an alkyl or aryl group. Ammonia serves as the primary nitrogen source in amination reactions, and its utilization in solution or as a pure gas has witnessed notable advancements. However, the use of gaseous ammonia remains problematic in academic laboratory settings, while employing aqueous ammonia poses challenges in highly water-sensitive transformations. Consequently, the search for alternative sources of ammonia has garnered considerable attention among the organic chemistry community. This comprehensive literature review focuses on the use of ammonia surrogates in amination reactions, irrespective of the resulting intermediate. The review emphasizes the formation of the C-N bond and underscores the importance of generating intermediate products that can be readily transformed into primary amines through well-established reactions.
    Language English
    Publishing date 2023-09-13
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2097583-1
    ISSN 1477-0539 ; 1477-0520
    ISSN (online) 1477-0539
    ISSN 1477-0520
    DOI 10.1039/d3ob01202f
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article: Transcranial magnetic stimulation therapy for central post-stroke pain: systematic review and meta-analysis.

    Gurdiel-Álvarez, Francisco / Navarro-López, Víctor / Varela-Rodríguez, Sergio / Juárez-Vela, Raúl / Cobos-Rincón, Ana / Sánchez-González, Juan Luis

    Frontiers in neuroscience

    2024  Volume 18, Page(s) 1345128

    Abstract: Introduction: Although rare, central post-stroke pain remains one of the most refractory forms of neuropathic pain. It has been reported that repetitive transcranial magnetic stimulation (rTMS) may be effective in these cases of pain.: Aim: The aim ... ...

    Abstract Introduction: Although rare, central post-stroke pain remains one of the most refractory forms of neuropathic pain. It has been reported that repetitive transcranial magnetic stimulation (rTMS) may be effective in these cases of pain.
    Aim: The aim of this study was to investigate the efficacy of rTMS in patients with central post-stroke pain (CPSP).
    Methods: We included randomized controlled trials or Controlled Trials published until October 3rd, 2022, which studied the effect of rTMS compared to placebo in CPSP. We included studies of adult patients (>18 years) with a clinical diagnosis of stroke, in which the intervention consisted of the application of rTMS to treat CSP.
    Results: Nine studies were included in the qualitative analysis; 6 studies (4 RCT and 2 non-RCT), with 180 participants, were included in the quantitative analysis. A significant reduction in CPSP was found in favor of rTMS compared with sham, with a large effect size (SMD: -1.45; 95% CI: -1.87; -1.03;
    Conclusion: The findings of the present systematic review with meta-analysis suggest that there is low quality evidence for the effectiveness of rTMS in reducing CPSP.
    Systematic review registration: Identifier (CRD42022365655).
    Language English
    Publishing date 2024-02-14
    Publishing country Switzerland
    Document type Systematic Review
    ZDB-ID 2411902-7
    ISSN 1662-453X ; 1662-4548
    ISSN (online) 1662-453X
    ISSN 1662-4548
    DOI 10.3389/fnins.2024.1345128
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Diet-induced changes in fecal microbiota composition and diversity in dogs (Canis lupus familiaris): A comparative study of BARF-type and commercial diets.

    Castañeda, Sergio / Ariza, Gineth / Rincón-Riveros, Andres / Muñoz, Marina / Ramírez, Juan David

    Comparative immunology, microbiology and infectious diseases

    2023  Volume 98, Page(s) 102007

    Abstract: Background: Diet is known to strongly modulate the composition of the gut microbiota, thereby affecting health conditions and disease. Natural BARF-type and commercial diets have been used for feeding pets (e.g. dogs and cats) promoting changes in the ... ...

    Abstract Background: Diet is known to strongly modulate the composition of the gut microbiota, thereby affecting health conditions and disease. Natural BARF-type and commercial diets have been used for feeding pets (e.g. dogs and cats) promoting changes in the canine microbiota in terms of abundance, richness, and diversity that may favor certain metabolic processes and resistance to certain infectious agents. Therefore, the present study sought to identify microbiota changes in dogs fed with a BARF-type diet versus dogs fed with a commercial diet by sequencing the V4 region of the 16S rRNA gene.
    Methods: The microbiota of dogs fed with the BARF-diet (n = 20) and commercial-diet (n = 26) was studied using fecal samples. A metabarcoding strategy was employed by sequencing the V4 hypervariable region of the 16S rRNA gene using the Illumina HiSeq platform. DADA2 was used to assess the quality profile of the reads and to determine the core sample inference algorithm of the reads to infer amplicon sequence variants (ASVs). The taxonomic assignment was performed using sequences from the Silva v138 formatted reference database. The microbial diversity analysis was performed using the R package Phyloseq, which was used to calculate diversity and abundance indices and construct the respective graphs. Linear discriminant analysis (LDA) effect size analysis (LEfSe) was used to identify the differentially abundant taxa in the BARF group versus the commercial-diet group.
    Results: The diet causes changes in fecal microbiota composition and diversity, with richness and diversity being higher in BARF-fed dogs. Beta diversity analyses confirmed that diet is directly related to microbiota composition regardless of breed or sex. Differentially enriched taxa were identified in each of the diets as Fusobacterium, Bacteroides, and Clostridium perfringens in BARF-fed dogs and Prevotella, Turicibacter, Faecalibacterium, and Peptacetobacter (Clostridium) hiranonis, mostly relevant in carbohydrate metabolism, in commercial-fed dogs.
    Conclusions: This study is the first one carried out in dogs from Colombia that seeks to identify changes in the intestinal microbiota concerning natural BARF type diet and commercial diet using a metabarcoding approach. Important differences were identified in terms of richness, diversity, and differentially enriched bacteria in each of the diets. The microbiota of dogs fed the BARF diet was characterized by higher richness and diversity compared to the commercial diet. However, it was identified that BARF-fed dogs can potentially acquire more opportunistic infections by pathogens of importance such as C. perfringens. Most of the taxa enriched in commercial diet-fed dogs are linked to carbohydrate metabolism, which may be directly related to diet composition.
    MeSH term(s) Animals ; Dogs ; Cats ; Wolves/genetics ; RNA, Ribosomal, 16S/genetics ; Cat Diseases ; Dog Diseases ; Microbiota ; Diet/veterinary ; Feces/microbiology
    Chemical Substances RNA, Ribosomal, 16S
    Language English
    Publishing date 2023-06-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 436522-7
    ISSN 1878-1667 ; 0147-9571
    ISSN (online) 1878-1667
    ISSN 0147-9571
    DOI 10.1016/j.cimid.2023.102007
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Familial hypercholesterolemia associated to variant nt14810 C>G in MT-CYTB.

    Cabrera Pivaral, Carlos E / Rincón Sánchez, Ana Rosa / Ramírez-García, Sergio Alberto

    Medicina clinica

    2022  Volume 159, Issue 8, Page(s) 401–402

    Title translation Hipercolesterolemia familiar asociada a variante nt14810 C>G en MT-CYTB.
    MeSH term(s) Cholesterol, LDL ; Humans ; Hyperlipoproteinemia Type II/complications ; Hyperlipoproteinemia Type II/diagnosis ; Hyperlipoproteinemia Type II/genetics
    Chemical Substances Cholesterol, LDL
    Language Spanish
    Publishing date 2022-08-10
    Publishing country Spain
    Document type Letter
    ZDB-ID 411607-0
    ISSN 1578-8989 ; 0025-7753
    ISSN (online) 1578-8989
    ISSN 0025-7753
    DOI 10.1016/j.medcli.2022.07.008
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Ruxolitinib as first-line therapy in secondary hemophagocytic lymphohistiocytosis and HIV infection.

    Gálvez Acosta, Sergio / Javalera Rincón, Mariana

    International journal of hematology

    2020  Volume 112, Issue 3, Page(s) 418–421

    Abstract: Secondary lymphohistiocytosis is a severe inflammatory condition characterized by uncontrolled inflammatory response hyperactivation of antigen-presenting cells, hemophagocytosis, cytopenias, and multiorgan failure, and is secondary to subjacent ... ...

    Abstract Secondary lymphohistiocytosis is a severe inflammatory condition characterized by uncontrolled inflammatory response hyperactivation of antigen-presenting cells, hemophagocytosis, cytopenias, and multiorgan failure, and is secondary to subjacent pathologies such as cancer, infection, or immune disease. Standard treatment includes chemotherapy; however, this is not always possible or safe. Ruxolitinib, a Janus kinase (JAK) 1/2 inhibitor can reduce inflammation and cytokine activity and has been used in refractory cases and first-line treatment. Here, we present a 35-year-old patient with HIV infection and secondary lymphohistiocytosis due to CMV/EBV infection who was successfully treated with ruxolitinib as first-line therapy. He rapidly showed clinical and biochemical improvement and transfusion independence without complications.
    MeSH term(s) Adult ; Cytokines/metabolism ; Cytomegalovirus Infections/complications ; Epstein-Barr Virus Infections/complications ; HIV Infections/complications ; Humans ; Inflammation ; Inflammation Mediators/metabolism ; Janus Kinase Inhibitors/therapeutic use ; Lymphohistiocytosis, Hemophagocytic/drug therapy ; Lymphohistiocytosis, Hemophagocytic/etiology ; Lymphohistiocytosis, Hemophagocytic/metabolism ; Male ; Pyrazoles/therapeutic use ; Treatment Outcome
    Chemical Substances Cytokines ; Inflammation Mediators ; Janus Kinase Inhibitors ; Pyrazoles ; ruxolitinib (82S8X8XX8H)
    Language English
    Publishing date 2020-04-13
    Publishing country Japan
    Document type Case Reports ; Journal Article
    ZDB-ID 1076875-0
    ISSN 1865-3774 ; 0917-1258 ; 0925-5710
    ISSN (online) 1865-3774
    ISSN 0917-1258 ; 0925-5710
    DOI 10.1007/s12185-020-02882-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Influence of reaction variables on the surface chemistry of cellulose nanofibers derived from palm oil empty fruit bunches.

    Martínez-Ramírez, Andrea P / Rincón-Ortiz, Sergio A / Baldovino-Medrano, Víctor G / Blanco-Tirado, Cristian / Combariza, Marianny Y

    RSC advances

    2023  Volume 13, Issue 51, Page(s) 36117–36129

    Abstract: Nanocellulose, a versatile nanomaterial with a wide range of applications, is gaining significant attention for its sustainable and eco-friendly properties. In this study, we investigate the influence of reaction variables on the surface chemistry of ... ...

    Abstract Nanocellulose, a versatile nanomaterial with a wide range of applications, is gaining significant attention for its sustainable and eco-friendly properties. In this study, we investigate the influence of reaction variables on the surface chemistry of TEMPO-oxidized cellulose nanofibers (TOCN) from palm oil empty fruit bunch (EFB) fibers, a high cellulose content biomass. Reaction time, primary oxidizing agent, and a pretreatment process affect, to various extents, the surface chemistry of EFB-TOCN. Conductometric titrations (CT), X-ray photoelectron spectroscopy (XPS), and statistical analysis indicate a positive and significant influence of reaction time and primary oxidizing agent on EBF-TOCN degree of oxidation and surface charge density. Partial EFB delignification increased EFB-TOCN oxidation and reaction yield compared to EFB without pretreatment. Interestingly, only reaction time has a significant effect on the EFB-TOCN hydrodynamic radii, with a reaction time of over 120 minutes required to obtain nanocellulose less than 100 nm in size. Utilizing palm oil residual biomass for nanocellulose extraction not only valorizes agricultural waste but also enhances the palm oil industry's economic prospects by reducing waste disposal costs and improving material circularity. This research contributes to the growing body of knowledge on nanocellulose production from renewable sources and highlights the potential of palm oil EFB fibers as a valuable raw material for sustainable nanomaterial development.
    Language English
    Publishing date 2023-12-11
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d3ra06933h
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article: Epidemiology of environmental factors related to beta-catenin pathway and its impact on the development and progression of colorectal cancer.

    Caballero-Avendaño, Arturo / Ramírez-García, Sergio A / Gutiérrez-Angulo, Melva / Cabrera-Pivaral, Carlos E / Dávalos-Rodríguez, Nory O / Rincón-Sánchez, Ana R

    Gaceta medica de Mexico

    2023  Volume 159, Issue 3, Page(s) 240–246

    Abstract: Colorectal cancer (CRC) is a complex disease, determined by genetic, environmental and lifestyle-associated risk factors. Genetic (inherited) factors have great influence on its development; however, most cases of CRC are sporadic and gradually develop ... ...

    Title translation Epidemiología de los factores ambientales relacionados con la vía β-catenina y su impacto en el desarrollo y progresión del cáncer colorrectal.
    Abstract Colorectal cancer (CRC) is a complex disease, determined by genetic, environmental and lifestyle-associated risk factors. Genetic (inherited) factors have great influence on its development; however, most cases of CRC are sporadic and gradually develop over several years. The main environmental risk factors are associated with b-catenin signaling pathway, including obesity, lack of physical activity, consumption of red and processed meats, alcoholism, and smoking. The pathway is related to cell homeostasis regulation and cell self-renewal during embryogenesis and adulthood. The main recommendation for preventing the development of CRC is to reduce the risk factors, increase the consumption of fruits, vegetables and grains, exercise regularly and limit the consumption of both alcohol and tobacco. However, family history and the presence of a hereditary syndrome increase the risk, which is why carrying out periodic examinations to detect CRC is suggested, using development predictors such as biochemical and molecular markers, which are discussed in this work.
    MeSH term(s) Humans ; Colorectal Neoplasms/etiology ; Colorectal Neoplasms/genetics ; beta Catenin/metabolism ; Risk Factors ; Obesity/complications ; Signal Transduction ; Gene Expression Regulation, Neoplastic
    Chemical Substances beta Catenin
    Language English
    Publishing date 2023-07-26
    Publishing country Mexico
    Document type Journal Article
    ZDB-ID 425456-9
    ISSN 0016-3813
    ISSN 0016-3813
    DOI 10.24875/GMM.M23000776
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Genomic Prediction from Multi-Environment Trials of Wheat Breeding.

    García-Barrios, Guillermo / Crespo-Herrera, Leonardo / Cruz-Izquierdo, Serafín / Vitale, Paolo / Sandoval-Islas, José Sergio / Gerard, Guillermo Sebastián / Aguilar-Rincón, Víctor Heber / Corona-Torres, Tarsicio / Crossa, José / Pacheco-Gil, Rosa Angela

    Genes

    2024  Volume 15, Issue 4

    Abstract: Genomic prediction relates a set of markers to variability in observed phenotypes of cultivars and allows for the prediction of phenotypes or breeding values of genotypes on unobserved individuals. Most genomic prediction approaches predict breeding ... ...

    Abstract Genomic prediction relates a set of markers to variability in observed phenotypes of cultivars and allows for the prediction of phenotypes or breeding values of genotypes on unobserved individuals. Most genomic prediction approaches predict breeding values based solely on additive effects. However, the economic value of wheat lines is not only influenced by their additive component but also encompasses a non-additive part (e.g., additive × additive epistasis interaction). In this study, genomic prediction models were implemented in three target populations of environments (TPE) in South Asia. Four models that incorporate genotype × environment interaction (G × E) and genotype × genotype (GG) were tested: Factor Analytic (FA), FA with genomic relationship matrix (FA + G), FA with epistatic relationship matrix (FA + GG), and FA with both genomic and epistatic relationship matrices (FA + G + GG). Results show that the FA + G and FA + G + GG models displayed the best and a similar performance across all tests, leading us to infer that the FA + G model effectively captures certain epistatic effects. The wheat lines tested in sites in different TPE were predicted with different precisions depending on the cross-validation employed. In general, the best prediction accuracy was obtained when some lines were observed in some sites of particular TPEs and the worse genomic prediction was observed when wheat lines were never observed in any site of one TPE.
    MeSH term(s) Triticum/genetics ; Plant Breeding/methods ; Genome, Plant ; Gene-Environment Interaction ; Genomics/methods ; Models, Genetic ; Epistasis, Genetic ; Genotype ; Phenotype
    Language English
    Publishing date 2024-03-27
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2527218-4
    ISSN 2073-4425 ; 2073-4425
    ISSN (online) 2073-4425
    ISSN 2073-4425
    DOI 10.3390/genes15040417
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top