LIVIVO - Search results -

Search results

Result 1 - 10 of total 70

Search options

Article ; Online: Processing, Characterization and Disintegration Properties of Biopolymers Based on Mater-Bi

Villegas, Carolina / Martínez, Sara / Torres, Alejandra / Rojas, Adrián / Araya, Rocío / Guarda, Abel / Galotto, María José

Polymers

2023 Volume 15, Issue 6

Abstract: Among the most promising synthetic biopolymers to replace conventional plastics in numerous applications is ... ...

Abstract	Among the most promising synthetic biopolymers to replace conventional plastics in numerous applications is MaterBi
Language	English
Publishing date	2023-03-21
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2527146-5
ISSN	2073-4360 ; 2073-4360
ISSN (online)	2073-4360
ISSN	2073-4360
DOI	10.3390/polym15061548
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

Article ; Online: Processing, Characterization and Disintegration Properties of Biopolymers Based on Mater-Bi ® and Ellagic Acid/Chitosan Coating

Carolina Villegas / Sara Martínez / Alejandra Torres / Adrián Rojas / Rocío Araya / Abel Guarda / María José Galotto

Polymers, Vol 15, Iss 1548, p

2023 Volume 1548

Abstract: Among the most promising synthetic biopolymers to replace conventional plastics in numerous applications is MaterBi ® (MB), a commercial biodegradable polymer based on modified starch and synthetic polymers. Actually, MB has important commercial ... ...

Abstract	Among the most promising synthetic biopolymers to replace conventional plastics in numerous applications is MaterBi ® (MB), a commercial biodegradable polymer based on modified starch and synthetic polymers. Actually, MB has important commercial applications as it shows interesting mechanical properties, thermal stability, processability and biodegradability. On the other hand, research has also focused on the incorporation of natural, efficient and low-cost active compounds into various materials with the aim of incorporating antimicrobial and/or antioxidant capacities into matrix polymers to extend the shelf life of foods. Among these is ellagic acid (EA), a polyphenolic compound abundant in some fruits, nuts and seeds, but also in agroforestry and industrial residues, which seems to be a promising biomolecule with interesting biological activities, including antioxidant activity, antibacterial activity and UV-barrier properties. The objective of this research is to develop a film based on commercial biopolymer Mater-Bi ® (MB) EF51L, incorporating active coating from chitosan with a natural active compound (EA) at two concentrations (2.5 and 5 wt.%). The formulations obtained complete characterization and were carried out in order to evaluate whether the incorporation of the coating significantly affects thermal, mechanical, structural, water-vapor barrier and disintegration properties. From the results, FTIR analysis yielded identification, through characteristic peaks, that the type of MB used is constituted by three polymers, namely PLA, TPS and PBAT. With respect to the mechanical properties, the values of tensile modulus and tensile strength of the MB-CHI film were between 15 and 23% lower than the values obtained for the MB film. The addition of 2.5 wt.% EA to the CHI layer did not generate changes in the mechanical properties of the system, whereas a 5 wt.% increase in ellagic acid improved the mechanical properties of the CHI film through the addition of natural phenolic compounds at high ...
Keywords	Mater-Bi ® ; ellagic acid ; chitosan ; coating ; Organic chemistry ; QD241-441
Subject code	540
Language	English
Publishing date	2023-03-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Janus-Type Mesoporous Silica Nanoparticles for Sequential Tumoral Cell and Mitochondria Targeting.

Villegas, Maria Rocio / Lopez, Victoria / Rodríguez-García, Verónica / Baeza, Alejandro / Vallet-Regí, María

Methods in molecular biology (Clifton, N.J.)

2021 Volume 2275, Page(s) 341–361

Abstract: The development of nanoparticles has provided a powerful weapon in the fight against cancer due to the discovery of their selective accumulation in tumoral tissues, known as enhanced permeation and retention (EPR) effect (Peer et al, Nat Nanotechnol 2: ... ...

Abstract	The development of nanoparticles has provided a powerful weapon in the fight against cancer due to the discovery of their selective accumulation in tumoral tissues, known as enhanced permeation and retention (EPR) effect (Peer et al, Nat Nanotechnol 2:751-760, 2007). Tumoral tissues require afastformation of blood vessels to sustain this rapid growth.
MeSH term(s)	Animals ; Cell Line, Tumor ; Drug Delivery Systems ; Folate Receptors, GPI-Anchored/metabolism ; Folic Acid/chemistry ; Folic Acid/pharmacology ; Gene Expression Regulation, Neoplastic/drug effects ; Humans ; Male ; Mice ; Mitochondria/chemistry ; Nanoparticles ; Organophosphorus Compounds/chemistry ; Porosity ; Prostatic Neoplasms/metabolism ; Silicon Dioxide/chemistry
Chemical Substances	Folate Receptors, GPI-Anchored ; Organophosphorus Compounds ; triphenylphosphine (26D26OA393) ; Silicon Dioxide (7631-86-9) ; Folic Acid (935E97BOY8)
Language	English
Publishing date	2021-06-12
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1940-6029
ISSN (online)	1940-6029
DOI	10.1007/978-1-0716-1262-0_22
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- Full text online
- Order with fees

Article ; Online: Immunological follow-up of patients with renal transplants: A proposal for clinical practice in Colombia

Ortiz, Melissa Andrea / Álvarez, Cristiam Mauricio / Arrunátegui, Ana María / Arias, Yazmin Rocío / Villegas, Adriana

Biomedica : revista del Instituto Nacional de Salud

2020 Volume 40, Issue 3, Page(s) 479–486

Title translation	Seguimiento inmunológico después de trasplante renal: una propuesta para la práctica clínica en Colombia.
MeSH term(s)	Acute Disease ; Aftercare/methods ; Algorithms ; Antibody Specificity ; Colombia ; Delayed Diagnosis ; Early Diagnosis ; Follow-Up Studies ; Graft Rejection/diagnosis ; Graft Rejection/immunology ; Graft Rejection/pathology ; Histocompatibility/immunology ; Humans ; Kidney Transplantation ; Time Factors
Language	Spanish
Publishing date	2020-09-01
Publishing country	Colombia
Document type	Journal Article
ZDB-ID	2059952-3
ISSN	2590-7379 ; 0120-4157
ISSN (online)	2590-7379
ISSN	0120-4157
DOI	10.7705/biomedica.5092
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: Seguimiento inmunológico después de trasplante renal

Melissa Andrea Ortiz / Cristiam Mauricio Álvarez / Ana María Arrunátegui / Yazmin Rocío Arias / Adriana Villegas

Biomédica: revista del Instituto Nacional de Salud, Vol 40, Iss 3, Pp 479-

una propuesta para la práctica clínica en Colombia

2020 Volume 486

Abstract: El daño del injerto es un proceso multifactorial que se inicia tempranamente después de la mayoría de los trasplantes de donantes sin HLA idéntico. Puede deberse a las comorbilidades del receptor, al estado del donante, al tiempo de isquemia, y al ... ...

Abstract	El daño del injerto es un proceso multifactorial que se inicia tempranamente después de la mayoría de los trasplantes de donantes sin HLA idéntico. Puede deberse a las comorbilidades del receptor, al estado del donante, al tiempo de isquemia, y al fenómeno de isquemia y reperfusión, entre otros, condiciones que inducen factores metabólicos e inmunológicos que finalmente desembocan en la disfunción del injerto. Sin embargo, entre el momento del trasplante y la aparición de los signos y síntomas existe un periodo que puede tardar semanas o años. Por ello, después del trasplante renal, es importante hacer un seguimiento racional que incluya la evaluación clínica y permita anticiparse al daño inmunológico del injerto. En este ensayo se propone un algoritmo de seguimiento del injerto renal después del trasplante.
Keywords	trasplante de riñón ; isoanticuerpos ; rechazo de injerto ; Medicine ; R ; Arctic medicine. Tropical medicine ; RC955-962
Language	English
Publishing date	2020-09-01T00:00:00Z
Publisher	Instituto Nacional de Salud
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: A Contextualization of Transgender Women and Condom Use Using the HIV Syndemic Framework: Scoping Review.

Moncayo-Quevedo, Jorge Eduardo / Pérez-Arizabaleta, María Del Mar / Rodríguez-Ortiz, Alejandra Rocio / Villegas-Trujillo, Lina María

International journal of sexual health : official journal of the World Association for Sexual Health

2024 Volume 36, Issue 2, Page(s) 221–235

Abstract: Objective: ...

Abstract	Objective:
Language	English
Publishing date	2024-03-21
Publishing country	England
Document type	Journal Article
ISSN	1931-762X
ISSN (online)	1931-762X
DOI	10.1080/19317611.2024.2319323
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Telephonic Follow-up and the Risk of Death in Ambulatory Patients with COVID-19.

Vargas-Sánchez, Héctor Raúl / Tomás-López, Juan Carlos / Álvarez-Medina, Verónica / Gil-Velázquez, Luisa Estela / Vega-Vega, Hortensia / Alarcón-López, Alejandro / Pérez-Villegas, Rafael / Carbajal-García, Claudia María / Rivera-Tello, Eugenia Del Rocío / Cervantes-Ocampo, Manuel / Duque-Molina, Célida / Ascencio-Montiel, Iván de Jesús

Journal of the American Board of Family Medicine : JABFM

2022 Volume 36, Issue 1, Page(s) 164–169

Abstract: Background: Primary care level close monitoring of mild COVID-19 patients has shown to provide a risk reduction in hospitalization and death. We aimed to compare the risk of all-cause death among COVID-19 ambulatory patients who received and did not ... ...

Abstract	Background: Primary care level close monitoring of mild COVID-19 patients has shown to provide a risk reduction in hospitalization and death. We aimed to compare the risk of all-cause death among COVID-19 ambulatory patients who received and did not receive telephonic follow-up in primary health care settings. Methods: A secondary database analysis, 2-group comparative study, was conducted with data from the medical information systems of the Mexican Institute of Social Security. A total of 1,498,808 ambulatory patients aged 20 years old and over and with laboratory confirmed SARS-CoV-2 by PCR or rapid antigen test were analyzed. Of them, 535,898 (35.8%) where followed by telephonic calls. The cases were attended from October 14, 2020, to April 10, 2022. Death incidence was evaluated. To assess the association between death and telephonic follow-up we calculated risk ratio using a multivariate logistic model. Results: Case fatality rate was 1.29% in the patients who received telephonic follow-up and 2.95% in the cases who did not receive phone calls. Medical history of chronic kidney disease, COPD, cardiovascular disease, tobacco consumption and diabetes were associated with increased risk of death. In the multivariate model, telephonic follow-up was associated with lower risk of all-cause death, with an adjusted risk ratio of 0.61 (95% confidence interval from 0.59, 0.64). Conclusion: Our data suggest that telephonic follow-up is associated with a risk of death reduction in adult outpatients with mild COVID-19, in the context of a multimodal strategy in the primary health care settings.
MeSH term(s)	Adult ; Humans ; Young Adult ; COVID-19/epidemiology ; SARS-CoV-2 ; Follow-Up Studies ; Hospitalization ; Time Factors
Language	English
Publishing date	2022-12-02
Publishing country	United States
Document type	Journal Article
ZDB-ID	2239939-2
ISSN	1558-7118 ; 1557-2625
ISSN (online)	1558-7118
ISSN	1557-2625
DOI	10.3122/jabfm.2022.220214R1
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 2626: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Infections and risk factors for infection-related mortality after pediatric allogeneic hematopoietic stem cell transplantation in Mexico: A single center retrospective study.

Jiménez-Hernández, Elva / Núñez-Enriquez, Juan Carlos / Arellano-Galindo, José / de Los Angeles Del Campo-Martínez, María / Reynoso-Arenas, Perla Verónica / Reyes-López, Alfonso / Delgado-Gaytan, Alejandra Viridiana / Del Socorro Méndez-Tovar, María / Marín-Palomares, Teresa / Dueñas-Gonzalez, María Teresa / Ortíz-Fernández, Antonio / Montero-Ponce, Inés / Espinosa-Hernández, Laura Eugenia / Núñez-Villegas, Nora Nancy / Pérez-Casillas, Ruy / Sánchez-Jara, Berenice / García-Soto, Angel / Herver-Olivares, Annecy Nelly / Jaimes-Reyes, Ethel Zulie /

Tiznado-García, Hector Manuel / Martínez-Villegas, Octavio / Valdez-Garibay, Betzayda / Del Rocío Loza-Santiaguillo, Paloma / García-Jiménez, Xochiketzalli / Ortíz-Torres, Guadalupe / Fernández-Castillo, Gabriela Jazmin / Aguilar-Olivares, Dulce María / Díaz-Padilla, Luis Alejandro / Noya-Rodríguez, Mario Alberto / García-Jiménez, Mariana / Mejía-Aranguré, Juan Manuel

PloS one

2023 Volume 18, Issue 9, Page(s) e0284628

Abstract: Objective: To identify the type of infections and risk factors for infection-related mortality (IRM) after allogeneic hematopoietic stem cell transplantation (HSCT).: Methods: Retrospective cohort study of patients <16 years of age treated in 2010- ... ...

Abstract	Objective: To identify the type of infections and risk factors for infection-related mortality (IRM) after allogeneic hematopoietic stem cell transplantation (HSCT). Methods: Retrospective cohort study of patients <16 years of age treated in 2010-2019 was conducted. Unadjusted hazard ratios (HR) and adjusted hazard ratios (aHR) with 95% confidence intervals (95% CIs) were estimated using Cox regression. Cumulative incidence was calculated. Results: Data for 99 pediatric patients were analyzed. The myeloablative conditioning was the most used regimen (78.8%) and the hematopoietic stem cell source was predominantly peripheral blood (80.8%). Primary graft failure occurred in 19.2% of patients. Frequency of acute graft-versus-host disease was 46.5%. Total of 136 infectious events was recorded, the most common of which were bacterial (76.4%) followed by viral infection (15.5%) and then fungal infection (8.1%). The best predictors for infection subtypes where the following: a) for bacterial infection (the age groups of 10.1-15 years: aHR = 3.33; 95% CI: 1.62-6.85 and. >15 years: aHR = 3.34; 95% CI: 1.18-9.45); b) for viral infection (graft versus host disease: aHR = 5.36; 95% CI: 1.62-17.68), however, for fungal infection statistically significant predictors were not identified. Related mortality was 30% (n = 12). Increased risk for infection-related mortality was observed in patients with unrelated donor and umbilical cord stem cells recipients (HR = 3.12; 95% CI: 1.00-9.85). Conclusions: Frequencies of infections and infection-related mortality appear to be similar to those reported. Unrelated donors and stem cells from umbilical cord recipients were associated with a high risk of mortality.
MeSH term(s)	Humans ; Child ; Adolescent ; Retrospective Studies ; Mexico/epidemiology ; Transplantation, Homologous/adverse effects ; Hematopoietic Stem Cell Transplantation/adverse effects ; Graft vs Host Disease/etiology ; Risk Factors ; Unrelated Donors ; Mycoses/etiology ; Transplantation Conditioning/adverse effects
Language	English
Publishing date	2023-09-29
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2267670-3
ISSN	1932-6203 ; 1932-6203
ISSN (online)	1932-6203
ISSN	1932-6203
DOI	10.1371/journal.pone.0284628
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: High occurrence of CRLF2 abnormalities in Mexican children with B-cell acute lymphoblastic leukemia.

Juárez-Velázquez, María Del Rocío / Moreno-Lorenzana, Dafné Linda / Martínez Anaya, Daniel Alejandro / Hernández Monterde, Eduardo Adrián / Aguilar-Hernández, María Montserrat / Reyes-León, Adriana / Chávez-González, María Antonieta / López Santiago, Norma / Zapata Tarrés, Marta / Juárez Villegas, Luis / Rivera Sánchez, Netzi / Soto Lerma, Oscar / Vega-Vega, Lourdes / Rivera Luna, Roberto / Pérez-Vera, Patricia

Cytokine

2022 Volume 155, Page(s) 155896

Abstract: The P2RY8-CRLF2 and IGH-CRLF2 rearrangements induce the overexpression of cytokine receptor-like factor 2 (CRLF2) and have been associated with relapse and poor prognosis in B-cell acute lymphoblastic leukemia (B-ALL). Additionally, they are frequently ... ...

Abstract	The P2RY8-CRLF2 and IGH-CRLF2 rearrangements induce the overexpression of cytokine receptor-like factor 2 (CRLF2) and have been associated with relapse and poor prognosis in B-cell acute lymphoblastic leukemia (B-ALL). Additionally, they are frequently documented in high-risk Hispanic populations. To better understand the potential causes of the adverse prognosis of childhood B-ALL in Mexico, we analyzed these rearrangements and the CRLF2 mRNA and protein levels in 133 Mexican children with B-ALL. We collected bone marrow samples at diagnosis and evaluated the CRLF2 gene expression by qRT-PCR and the total CRLF2 protein by flow cytometry. P2RY8-CRLF2 and IGH-CRLF2 were detected by RT-PCR and FISH, respectively. The median time of follow-up to determine the prognostic significance of the CRLF2 abnormalities was three years. In 82% of the participants, the mRNA levels correlated with the cell-surface and intracellular CRLF2 protein levels. The P2RY8-CRLF2 rearrangement was present in 31.5% (42/133) of the patients, while the IGH-CRLF2 rearrangement was detected in 13.5% (9/67) of patients with high expression of CRLF2 (6.8% of the total sample). CRLF2 copy number variations (gain) were also detected in 7.5% (5/67) of patients with high protein levels. The overall survival (OS) presented significantly lower rates in patients with high white blood cell count (≥50x10
MeSH term(s)	DNA Copy Number Variations ; Humans ; Mexico ; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/diagnosis ; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/genetics ; Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics ; Prognosis ; RNA, Messenger/genetics ; Receptors, Cytokine/genetics
Chemical Substances	CRLF2 protein, human ; RNA, Messenger ; Receptors, Cytokine
Language	English
Publishing date	2022-05-07
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1018055-2
ISSN	1096-0023 ; 1043-4666
ISSN (online)	1096-0023
ISSN	1043-4666
DOI	10.1016/j.cyto.2022.155896
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 2840: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Characterization of Philadelphia-like Pre-B Acute Lymphoblastic Leukemia: Experiences in Mexican Pediatric Patients.

Martínez-Anaya, Daniel / Moreno-Lorenzana, Dafné / Reyes-León, Adriana / Juárez-Figueroa, Ulises / Dean, Michael / Aguilar-Hernández, María Montserrat / Rivera-Sánchez, Netzi / García-Islas, Jessica / Vieyra-Fuentes, Victoria / Zapata-Tarrés, Marta / Juárez-Villegas, Luis / Paredes-Aguilera, Rogelio / Vega-Vega, Lourdes / Rivera-Luna, Roberto / Juárez-Velázquez, María Del Rocío / Pérez-Vera, Patricia

International journal of molecular sciences

2022 Volume 23, Issue 17

Abstract: Ph-like subtypes ... ...

Abstract	Ph-like subtypes with
MeSH term(s)	Gene Rearrangement ; Humans ; Mexico ; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/metabolism ; Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics ; Receptors, Cytokine/genetics ; Receptors, Cytokine/metabolism ; STAT5 Transcription Factor/metabolism
Chemical Substances	Receptors, Cytokine ; STAT5 Transcription Factor
Language	English
Publishing date	2022-08-24
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2019364-6
ISSN	1422-0067 ; 1422-0067 ; 1661-6596
ISSN (online)	1422-0067
ISSN	1422-0067 ; 1661-6596
DOI	10.3390/ijms23179587
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

To top

More links

Kategorien

Order via subito

Full text online

More links

Kategorien

Inter-library loan at ZB MED

Full text online

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

Full text online

More links

Kategorien

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito