22 results on '"Belinda Sanchez"'
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2. The interactive effects of age and sex on the neuro‐cardiovascular responses during fatiguing rhythmic handgrip exercise
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Andrew W. D'Souza, Ryosuke Takeda, Kazumasa Manabe, Sarah L. Hissen, Takuro Washio, Geoff B. Coombs, Belinda Sanchez, Qi Fu, and J. Kevin Shoemaker
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Physiology - Published
- 2023
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3. Sex-specific impact of aging on muscle sympathetic neural discharge patterns during incremental rhythmic handgrip exercise
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Andrew D'Souza, Ryosuke Takeda, Kazumasa Manabe, Sarah Hissen, Geoff Coombs, Takuro Washio, Belinda Sanchez, Qi Fu, and Kevin Shoemaker
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Physiology - Abstract
Sex-disparities exist in the risk of developing hypertension throughout the lifespan, with a greater prevalence of hypertension amongst postmenopausal females compared to similarly aged males. Though the underlying mechanisms are multifactorial, exaggerated sympathetic neuro-cardiovascular reactivity may be an important contributor. Indeed, postmenopausal females exhibit exaggerated exercise pressor responses compared to young adults, and older males. However, the interactive effects of age and sex on muscle sympathetic nerve activity (MSNA) and action potential (AP) coding patterns during exercise remains unclear. We hypothesized that older females would exhibit the greatest increase in MSNA and AP recruitment during exercise and post-exercise circulatory occlusion (PECO) relative to young males and females, as well as older males. MSNA and AP discharge patterns (microneurography and continuous wavelet transform) were assessed in 12 young males (YM (mean±SD); 26±4, years), 11 young females (YF; 25±4 years), 11 older males (OM; 71±11 years), and 12 older females (OF; 71±4 years) during incremental rhythmic handgrip exercise to fatigue followed by 2 minutes of PECO. At peak exercise, OM demonstrated a smaller change from baseline (Δ) in MSNA burst incidence (BI) compared to all other groups (YM: Δ8±9, YF: Δ9±8, OM: Δ-6±8, OF: Δ6±7 bursts/100heartbeats; all ANOVA post-hoc P0.05). Conversely, YM demonstrated greater ΔAPs/burst (YM: Δ5±3, OM: Δ0.4±3, OF: Δ2±2 APs/burst; post-hoc P Supported by the Natural Sciences and Engineering Council of Canada, and IEEM Indirect Funds. This is the full abstract presented at the American Physiology Summit 2023 meeting and is only available in HTML format. There are no additional versions or additional content available for this abstract. Physiology was not involved in the peer review process.
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- 2023
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4. Brachial artery flow-mediated dilation during incremental handgrip exercise is not impacted by sex or female sex hormones
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Meghan Annis, Andrew D'Souza, Geoff Coombs, Kazumasa Manabe, Belinda Sanchez, Qi Fu, and Kevin Shoemaker
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Physiology - Abstract
Sex differences exist in reactive hyperemia flow-mediated dilation (RH-FMD), with males demonstrating larger RH-FMD responses than naturally menstruating females and females using oral contraception (OC). This difference is thought to be partly attributed to sex hormones. Among females, some studies demonstrate lower RH-FMD in females using OC relative to naturally menstruating females. To date, non-invasive assessments of endothelial function in males, naturally cycling females and females using OC have only been completed using RH-FMD. Notably, due to differences in the shear stimulus during sustained shear-induced FMD (SS-FMD) versus the transient pattern observed with RH-FMD, SS-FMD may provide distinct insight into endothelial dysfunction undetected with RH-FMD. Therefore, we hypothesized that the SS-FMD responses to incremental handgrip (IHG) exercise would be greatest in males, and that females using OC would have the smallest increase in SS-FMD compared to males and naturally menstruating females. The IHG protocol consisted of 3-minute stages of rhythmic handgrip exercise at 15, 30, and 45% of an individual’s maximal voluntary contraction (MVC) force, with no rest period between MVC transitions. Brachial artery diameter and blood velocity were measured simultaneously via duplex Doppler ultrasound in 10 males (26±4 [mean±SD] years), 11 naturally menstruating females (25±4 years), and 9 females using OC (27±5 years) during IHG. Females were tested in the mid-luteal (ML) and active (high hormone) OC phases. SS-FMD and shear rate were analyzed using linear mixed model analyses. MVC was greater in males relative to both groups of females (males: 40±6, ML: 28±8, OC: 26±6 kg; One-way ANOVA: post-hocs P≤0.001). Brachial artery shear rate was not different between males, ML females or females using OC throughout exercise (group-by-stage interaction: P=0.975). Consequently, the brachial artery dilated by 1.3±1.5, 0.1±2.1, and 1.2±3.6 % at 15% MVC, 4.0±3.1, 2.7±3.3, and 4.1±4.8 % at 30% MVC, and 9.1±4.9, 7.3±5.4, and 7.6±5.9 % at 45% MVC, in males, ML females, and females using OC, respectively (all P>0.05). Furthermore, the slopes of the relationship between the change in brachial artery diameter and shear rate was similar between the three groups (Males: 0.0004±0.0002, ML: 0.0003±0.0002, OC: 0.0003±0.0002 Δmm/Δ1·s-1; One-way ANOVA: P=0.564). Taken together, these data indicate that endothelial function in response to sustained elevations in shear stress are not impacted by biological sex or OC use. Supported by the Natural Sciences and Engineering Research Council of Canada, and IEEM indirect funds. This is the full abstract presented at the American Physiology Summit 2023 meeting and is only available in HTML format. There are no additional versions or additional content available for this abstract. Physiology was not involved in the peer review process.
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- 2023
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5. Sex differences in sympathetic neurovascular transduction of action potential discharge during fatiguing handgrip exercise in young adults
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Andrew D'Souza, Kazumasa Manabe, Sarah Hissen, Geoff Coombs, Takuro Washio, Meghan Annis, Belinda Sanchez, Qi Fu, and Kevin Shoemaker
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Physiology - Abstract
Males, and females using oral contraception (OC), exhibit larger increases in muscle sympathetic nerve activity (MSNA) during exercise than naturally menstruating females. Furthermore, sympathetic transduction into blood pressure during exercise is greater in females using OC than naturally menstruating females. Though limb vasoconstriction for a given dose of norepinephrine is blunted in females (via estrogen mediated β-adrenergic vasodilation) compared to males at rest, the impact of sex, menstrual cycle, and OC on MSNA and action potential (AP) discharge, as well as sympathetic neurovascular transduction (sNVT) during exercise remains unknown. We hypothesized that during exercise: 1) males would exhibit the largest increases in MSNA and AP recruitment as well as sNVT, and 2) naturally menstruating females would exhibit less sympathetic reactivity and sNVT compared to females using OC. MSNA, AP discharge (microneurography and a continuous wavelet transform), and leg blood flow (doppler ultrasound) were assessed in 10 naturally menstruating females (25±4 years (mean±SD)), 7 females using OC (26±5 years), and 6 males (YM; 26±5 years) during static handgrip exercise (SHG) to fatigue at 40% of maximal voluntary contraction force. SHG duration was divided into four equal stages. Leg vascular conductance (LVC) was calculated as leg blood flow divided by mean arterial pressure, and sNVT was quantified as the slope of the relationship between changes in (Δ) LVC and MSNA or AP discharge. Females were tested in the mid luteal (ML) and active pill OC phases. Linear mixed-model analyses were used to assess ΔMSNA, AP discharge, and LVC during SHG, whereas sNVT was assessed via one-way ANOVAs. No group differences were observed for ΔMSNA burst frequency ( P=0.937), incidence ( P=0.928), amplitude ( P=0.293) or total activity ( P=0.966) throughout exercise. Similarly, ΔAPs/burst ( P=0.59), ΔClusters/burst ( P=0.393), ΔTotal clusters ( P=0.639) were not different between groups throughout exercise. Conversely, an interaction effect was observed for ΔLVC during exercise ( P=0.004), with ML females tending to have smaller ΔLVC than YM at 25% ( P=0.132), 75% ( P=0.174) and 100% ( P=0.103) of SHG. Thus, sNVT of MSNA burst amplitude (ML: -0.007±0.007, YM: -0.023±0.01 Δml/min/ΔAU; post-hoc P=0.008), total activity (ML: -0.00007±0.00007, YM: -0.0003±0.0001 Δml/min/ΔAU/min-1; post-hoc P=0.002), and total AP clusters (ML: -0.03±0.03, YM: -0.08±0.03 Δml/min/Δclusters; post-hoc P=0.027) was lower in ML females relative to YM. In females using OC, sNVT was not different compared to ML females or YM (all post-hoc P>0.05 ). sNVT of other MSNA/AP indices were not different between groups (all P>0.05). These preliminary data indicate that sNVT of MSNA burst amplitude and total AP clusters is greater in males than naturally menstruating females, and that OC use does not impact AP discharge or sNVT within females during static handgrip exercise. Supported by the Natural Sciences and Engineering Council of Canada This is the full abstract presented at the American Physiology Summit 2023 meeting and is only available in HTML format. There are no additional versions or additional content available for this abstract. Physiology was not involved in the peer review process.
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- 2023
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6. A randomized, double-blind phase I clinical trial of two recombinant dimeric RBD COVID-19 vaccine candidates: Safety, reactogenicity and immunogenicity
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Franciscary Pi-Estopinan, Jorman Rubino-Moreno, Mayte Amoroto-Roig, Maria Teresa Perez-Guevara, Yury Valdés-Balbín, Laura M. Rodríguez-Noda, Marisel Martinez-Perez, Meiby de la Caridad Rodriguez-Gonzalez, Carmen M Valenzuela-Silva, Dagmar García-Rivera, Rolando Ochoa-Azze, Maura Tamayo-Rodriguez, Raul Gonzalez-Mugica, Vicente Verez-Bencomo, Yanet Chappi-Estevez, Yanet Climent-Ruiz, Belinda Sanchez-Ramirez, Beatriz Paredes-Moreno, Anamary Suarez-Batista, Gretchen Bergado-Baez, Tays Hernandez-Garcia, Alina Díaz-Machado, Alis Martín-Trujillo, Sonia Pérez-Rodríguez, Rocmira Perez-Nicado, Guang-Wu Chen, Marta Dubed-Echevarría, and Carlos A. González-Delgado
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Adult ,medicine.medical_specialty ,COVID-19 Vaccines ,medicine.medical_treatment ,Phases of clinical research ,Antibodies, Viral ,Gastroenterology ,Young Adult ,Immunogenicity, Vaccine ,Double-Blind Method ,Internal medicine ,medicine ,Humans ,Seroconversion ,Adverse effect ,COVID-19 Serotherapy ,Reactogenicity ,biology ,General Veterinary ,General Immunology and Microbiology ,SARS-CoV-2 ,business.industry ,Immunogenicity ,Immunization, Passive ,Public Health, Environmental and Occupational Health ,COVID-19 ,Middle Aged ,Antibodies, Neutralizing ,Vaccination ,Infectious Diseases ,Spike Glycoprotein, Coronavirus ,biology.protein ,Molecular Medicine ,Antibody ,business ,Adjuvant - Abstract
BackgroundThe Receptor Binding Domain (RBD) of the SARS-CoV-2 spike protein is the target for many COVID-19 vaccines. Here we report results for phase 1 clinical trial of two COVID-19 vaccine candidates based on recombinant dimeric RBD (d-RBD).MethodsWe performed a randomized, double-blind, phase I clinical trial in the National Centre of Toxicology in Havana. Sixty Cuban volunteers aged 19-59 years were randomized into three groups (20 subjects each): 1) FINLAY-FR-1 (50 mcg d-RBD plus outer membrane vesicles from N. meningitidis); 2) FINLAY-FR-1A-50 mcg d-RBD (three doses); 3) FINLAY-FR-1A-25 mcg d-RDB (three doses). The FINLAY-FR-1 group was randomly divided to receive a third dose of the same vaccine candidate (homologous schedule) or of FINLAY-FR-1A-50 (heterologous schedule). The primary outcomes were safety and reactogenicity. The secondary outcome was vaccine immunogenicity. Humoral response at baseline and following each vaccination was evaluated using live-virus neutralization test, anti-RBD IgG ELISA and in-vitro neutralization test of RBD:hACE2 interaction.ResultsMost adverse events were of mild intensity (63.5%), solicited (58.8%), and local (61.8%); 69.4% with causal association with vaccination. Serious adverse events were not found. The FINLAY-FR-1 group reported more adverse events than the other two groups. After the third dose, anti-RBD seroconversion was 100%, 94.4% and 90% for the FINLAY-FR-1, FINLAY-FR-1A-50 and FINLAY-FR-1A-25 respectively. The in-vitro inhibition of RBD:hACE2 interaction increased after the second dose in all formulations. The geometric mean neutralizing titres after the third dose rose significantly in the group vaccinated with FINLAY-FR-1 with respect to the other formulations and the COVID-19 Convalescent Serum Panel. No differences were found between FINLAY-FR-1 homologous or heterologous schedules.ConclusionsVaccine candidates were safe and immunogenic, and induced live-virus neutralizing antibodies against SARS-CoV-2. The highest values were obtained when outer membrane vesicles were used as adjuvant.Trial registryhttps://rpcec.sld.cu/en/trials/RPCEC00000338-En
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- 2022
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7. New surgical realities: implementation of an enhanced recovery after surgery protocol for gynecological laparoscopy—a prospective study
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Jimenez, Jose Carlos Vilches, Serrano, Beatriz Tripiana, Muñoz, Emilia Villegas, Pérez, Belinda Sanchez, and Jimenez Lopez, Jesús S.
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Laparoscopic hysterectomy ,ERAS protocol ,Gynecology ,RD1-811 ,Research ,Benign disease ,Surgery ,Cohort study - Abstract
Background Multimodal rehabilitation allows optimization of functional recovery in surgery patients by reducing the postoperative stress and hospital stay duration, without increasing the morbidity and mortality. It is reportedly successful in other surgical disciplines, and guidelines for its application to gynecological surgery are available; however, most evidence for these guidelines is derived from observational and/or retrospective studies. Therefore, this study aimed to investigate the applicability of an enhanced recovery after surgery (ERAS) protocol in laparoscopic gynecological surgery and its influence on the postoperative stay, morbidity, mortality, and readmission, through a prospective approach. Methods This prospective cohort study was performed on 90 patients who underwent laparoscopic hysterectomy for benign causes from October 2017 to October 2019. Patients in whom the ERAS (ERAS group, n = 30) and traditional (control group, n = 60) protocols were implemented were compared. All patients were followed for 6 months. Results The groups were homogeneous and did not differ significantly with respect to the demographic characteristics (age, ASA score, body mass index), surgical indications, and surgery types. Adherence to the ERAS protocol was over 99%. The postoperative hospital-stay durations were 1.73 days (r = 1–3) and 2.97 days (r = 2–6) in the ERAS and control groups, respectively (p = 0.000). No significant intergroup differences were observed in the rates of complications and readmissions. Conclusions The ERAS protocol is applicable in laparoscopic gynecological surgery and can be implemented with good adherence. This can allow optimization of patient recovery by reducing the hospital stay duration, without increasing the rates of morbidity, mortality, or readmission.
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- 2021
8. Near-infrared diffuse correlation spectroscopy tracks changes in oxygen delivery and utilization during exercise with and without isolated arterial compression
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Robert F. Bentley, Mark J. Haykowsky, Belinda Sanchez, Wesley J. Tucker, Darian Trojacek, Michael D. Nelson, Ryan Rosenberry, and Fenghua Tian
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Adult ,Male ,Materials science ,Brachial Artery ,Physiology ,01 natural sciences ,010309 optics ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Physiology (medical) ,0103 physical sciences ,medicine ,Humans ,Exercise ,Spectroscopy, Near-Infrared ,Near-infrared spectroscopy ,Skeletal muscle ,Arteries ,Diffuse correlation spectroscopy ,Compression (physics) ,Oxygen ,medicine.anatomical_structure ,Regional Blood Flow ,Oxygen delivery ,030217 neurology & neurosurgery ,Research Article ,Biomedical engineering - Abstract
Near-infrared diffuse correlation spectroscopy (NIR-DCS) is an emerging technology for simultaneous measurement of skeletal muscle microvascular oxygen delivery and utilization during exercise. The extent to which NIR-DCS can track acute changes in oxygen delivery and utilization has not yet been fully established. To address this knowledge gap, 14 healthy men performed rhythmic handgrip exercise at 30% maximal voluntary contraction, with and without isolated brachial artery compression, designed to acutely reduce convective oxygen delivery to the exercising muscle. Radial artery blood flow (Duplex Ultrasound) and NIR-DCS derived variables [blood flow index (BFI), tissue oxygen saturation ([Formula: see text]), and metabolic rate of oxygen ([Formula: see text])] were simultaneously measured. During exercise, both radial artery blood flow (+51.6 ± 20.3 mL/min) and DCS-derived BFI (+155.0 ± 82.2%) increased significantly ( P < 0.001), whereas [Formula: see text] decreased −7.9 ± 6.2% ( P = 0.002) from rest. Brachial artery compression during exercise caused a significant reduction in both radial artery blood flow (−32.0 ± 19.5 mL/min, P = 0.001) and DCS-derived BFI (−57.3 ± 51.1%, P = 0.01) and a further reduction of [Formula: see text] (−5.6 ± 3.8%, P = 0.001) compared with exercise without compression. [Formula: see text] was not significantly reduced during arterial compression ( P = 0.83) due to compensatory reductions in [Formula: see text], driven by increases in deoxyhemoglobin/myoglobin (+7.1 ± 6.1 μM, P = 0.01; an index of oxygen extraction). Together, these proof-of-concept data help to further validate NIR-DCS as an effective tool to assess the determinants of skeletal muscle oxygen consumption at the level of the microvasculature during exercise.
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- 2020
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9. A COVID-19 vaccine candidate composed of SARS-CoV-2 RBD dimer and Neisseria meningitidis outer membrane vesicles
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Darielys Santana-Mederos, Rocmira Perez-Nicado, Yanet Climent, Laura Rodriguez, Belinda Sanchez Ramirez, Sonia Perez-Rodriguez, Meybi Rodriguez, Claudia Labrada, Tays Hernandez, Marianniz Diaz, Ivette Orosa, Ubel Ramirez, Reynaldo Oliva, Raine Garrido, Felix Cardoso, Mario Landys, Roselyn Martinez, Humberto Gonzalez, Tamara Hernandez, Rolando Ochoa-Azze, Jose L. Perez, Juliet Enriquez, Nibaldo Gonzalez, Yenicet Infante, Luis A. Espinosa, Yassel Ramos, Luis Javier González, Carmen Valenzuela, Ana Victoria Casadesus, Briandy Fernandez, Gertrudis Rojas, Beatriz Pérez-Massón, Yaima Tundidor, Ernesto Bermudez, Claudia A. Plasencia, Tammy Boggiano, Eduardo Ojito, Fabrizio Chiodo, Sonsire Fernandez, Françoise Paquet, Cheng Fang, Guang-Wu Chen, Daniel G. Rivera, Yury Valdes-Balbin, Dagmar Garcia-Rivera, Vicente Verez Bencomo, Centre de biophysique moléculaire (CBM), Université d'Orléans (UO)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), and Molecular cell biology and Immunology
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0303 health sciences ,[SDV]Life Sciences [q-bio] ,fungi ,biochemical phenomena, metabolism, and nutrition ,Biochemistry, Genetics and Molecular Biology (miscellaneous) ,Biochemistry ,3. Good health ,body regions ,03 medical and health sciences ,0302 clinical medicine ,Chemistry (miscellaneous) ,030220 oncology & carcinogenesis ,skin and connective tissue diseases ,Molecular Biology ,030304 developmental biology - Abstract
SARS-CoV-2 infection is mediated by the interaction of the spike glycoprotein trimer via its receptor-binding domain (RBD) with the host's cellular receptor. Vaccines seek to block this interaction by eliciting neutralizing antibodies, most of which are directed toward the RBD. Many protein subunit vaccines require powerful adjuvants to generate a potent antibody response. Here, we report on the use of a SARS-CoV-2 dimeric recombinant RBD combined with Neisseria meningitidis outer membrane vesicles (OMVs), adsorbed on alum, as a promising COVID-19 vaccine candidate. This formulation induces a potent and neutralizing immune response in laboratory animals, which is higher than that of the dimeric RBD alone adsorbed on alum. Sera of people vaccinated with this vaccine candidate, named Soberana01, show a high inhibition level of the RBD-ACE2 interaction using RBD mutants corresponding to SARS-CoV-2 variants of concern and wild-type expressed using the phage display technology. To our knowledge, this is the first time that the immunostimulation effect of N. meningitidis OMVs is evaluated in vaccine candidates against SARS-CoV-2.
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- 2022
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10. A COVID-19 vaccine candidate composed of the SARS-CoV-2 RBD dimer and
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Darielys, Santana-Mederos, Rocmira, Perez-Nicado, Yanet, Climent, Laura, Rodriguez, Belinda Sanchez, Ramirez, Sonia, Perez-Rodriguez, Meybi, Rodriguez, Claudia, Labrada, Tays, Hernandez, Marianniz, Diaz, Ivette, Orosa, Ubel, Ramirez, Reynaldo, Oliva, Raine, Garrido, Felix, Cardoso, Mario, Landys, Roselyn, Martinez, Humberto, Gonzalez, Tamara, Hernandez, Rolando, Ochoa-Azze, Jose L, Perez, Juliet, Enriquez, Nibaldo, Gonzalez, Yenicet, Infante, Luis A, Espinosa, Yassel, Ramos, Luis Javier, González, Carmen, Valenzuela, Ana Victoria, Casadesus, Briandy, Fernandez, Gertrudis, Rojas, Beatriz, Pérez-Massón, Yaima, Tundidor, Ernesto, Bermudez, Claudia A, Plasencia, Tammy, Boggiano, Eduardo, Ojito, Fabrizio, Chiodo, Sonsire, Fernandez, Françoise, Paquet, Cheng, Fang, Guang-Wu, Chen, Daniel G, Rivera, Yury, Valdes-Balbin, Dagmar, Garcia-Rivera, and Vicente, Verez Bencomo
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SARS-CoV-2 infection is mediated by the interaction of the spike glycoprotein trimer
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- 2021
11. Safety and immunogenicity of anti-SARS-CoV-2 heterologous scheme with SOBERANA 02 and SOBERANA Plus vaccines: Phase IIb clinical trial in adults
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María Eugenia Toledo-Romani, Mayra García-Carmenate, Leslyhana Verdecia-Sánchez, Suzel Pérez-Rodríguez, Meybis Rodriguez-González, Carmen Valenzuela-Silva, Beatriz Paredes-Moreno, Belinda Sanchez-Ramirez, Raúl González-Mugica, Tays Hernández-Garcia, Ivette Orosa-Vázquez, Marianniz Díaz-Hernández, María Teresa Pérez-Guevara, Juliet Enriquez-Puertas, Enrique Noa-Romero, Ariel Palenzuela-Diaz, Gerardo Baro-Roman, Ivis Mendoza-Hernández, Yaima Muñoz, Yanet Gómez-Maceo, Bertha Leysi Santos-Vega, Sonsire Fernandez-Castillo, Yanet Climent-Ruiz, Laura Rodríguez-Noda, Darielys Santana-Mederos, Yanelda García-Vega, Guang-Wu Chen, Delaram Doroud, Alireza Biglari, Tammy Boggiano-Ayo, Yury Valdés-Balbín, Daniel G. Rivera, Dagmar García-Rivera, Vicente Vérez-Bencomo, Mailin Cubas-Curbelo, Pedro Gabriel Rodríguez-Castillo, Yosmel Acevedo-Martínez, Solangel Estoque-Cabrera, José Alejandro Ávila-Cabreja, Ainadis Alfaro-Guzmán, Lilian Zulueta-Pérez, Niurka Tamara Espino-Rojas, Gloria Margarita Medinas-Santos, Ileana Luisa Sarda-Rodriguez, Mario Alejandro Acosta-Martinez, Radamet Reyes-Matienzo, José Manuel Coviella-Artime, Irania Morffi-Cinta, Marisel Martínez-Pérez, Rodrigo Valera-Fernández, Aniurka Garcés-Hechavarría, Dayle Martínez-Bedoya, Raine Garrido-Arteaga, Félix Cardoso-SanJorge, Ubel Ramírez-Gonzalez, Lauren Quintero-Moreno, Ivis Ontivero-Pino, Roselyn Martínez-Rivera, Berta Guillén-Obregón, Janet Lora-García, Maite Medina-Nápoles, Jennifer Espi-Ávila, Marcos Fontanies-Fernández, Yeney Regla Domínguez-Pentón, Gretchen Bergado-Baez, Franciscary Pi-Estopiñán, Eduardo Ojito-Magaz, Misladys Rodríguez, Otto Cruz-Sui, Majela García-Montero, Marta Dubed-Echevarría, Elena García-López, Evelyn Galano-Frutos, Alina Perez-Perez, Susana Morales-Ruano, Idalmis Brito-Pascual, Maité Amoroto, and Amaylid Arteaga-García
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Adult ,Vaccines ,SARS-CoV-2 ,Immunoglobulin G ,Humans ,COVID-19 ,General Medicine ,Antibodies, Neutralizing - Abstract
SOBERANA 02 has been evaluated in phase I and IIa studies comparing homologous versus heterologous schedule (this one, including SOBERANA Plus). Here, we report results of immunogenicity, safety, and reactogenicity of SOBERANA 02 in a two- or three-dose heterologous scheme in adults.Phase IIb was a parallel, multicenter, adaptive, double-blind, randomized, and placebo-controlled trial. Subjects (n = 810) aged 19-80 years were randomized to receive two doses of SARS-CoV-2 RBD conjugated to tetanus toxoid (SOBERANA 02) and a third dose of dimeric RBD (SOBERANA Plus) 28 days apart; two production batches of active ingredients of SOBERANA 02 were evaluated. Primary outcome was the percentage of seroconverted subjects with ≥4-fold the anti-RBD immunoglobulin G (IgG) concentration. Secondary outcomes were safety, reactogenicity, and neutralizing antibodies.Seroconversion rate in vaccinees was 76.3% after two doses and 96.8% after the third dose of SOBERANA Plus (7.3% in the placebo group). Neutralizing IgG antibodies were detected against D614G and variants of concern (VOCs) Alpha, Beta, Delta, and Omicron. Specific, functional antibodies were detected 7-8 months after the third dose. The frequency of serious adverse events (AEs) associated with vaccination was very low (0.1%). Local pain was the most frequent AE.Two doses of SOBERANA 02 were safe and immunogenic in adults. The heterologous combination with SOBERANA Plus increased neutralizing antibodies, detectable 7-8 months after the third dose.https://rpcec.sld.cu/trials/RPCEC00000347 FUNDING: This work was supported by Finlay Vaccine Institute, BioCubaFarma, and the Fondo Nacional de Ciencia y Técnica (FONCI-CITMA-Cuba, contract 2020-20).
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- 2022
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12. Outcome of Liver Transplants Using Donors After Cardiac Death With Normothermic Regional Perfusion
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Rosa Perez Rodriguez, Belinda Sanchez Perez, Jose Antonio Perez Daga, Francisco Javier Leon Diaz, Jose Luis Fernandez Aguilar, Miguel Angel Suarez Muñoz, Maria Custodia Montiel Casado, Jose Manuel Aranda Narvaez, and Julio Santoyo Santoyo
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Death ,Perfusion ,Transplantation ,Brain Death ,Graft Survival ,Humans ,Surgery ,Tissue Donors ,Liver Transplantation ,Retrospective Studies - Abstract
The incorporation of normothermic regional perfusion (NRP) to donors after cardiac death (DCD) allows the recovery of liver grafts without the deleterious effects on graft survival the super-rapid technique may cause. The aim of the present report is to determine if the use of NRP in Maastricht type III DCD donors achieves short- and medium-term results comparable to donors after brain death (DBD).This is an observational cohort study including 117 liver transplants executed between November 2016 and April 2021, divided into NRP (n = 39) and DBD (n = 78).Donors were younger in the NRP group (NRP 52 vs DBD 59.4 years; P.005). Liver recipients in each study group were of similar age and severity of liver disease, although the predominant transplant indication in the NRP group was hepatocellular carcinoma. No differences in ischemia times were found. The incidence of early allograft disfunction and primary nonfunction was balanced between NRP and DBD. Eight patients required retransplant, all of them in the DBD group. No differences were found in biliary complications (NRP 12% vs DBD 5%; P = .104). Ischemic cholangiopathy affected a single DBD patient. Graft survival's Kaplan Meier curve shows a better outcome in the NRP group, although the difference did not reach significance (P = .075).The incorporation of perfusion machines, and specifically the NPR in situ, converts suboptimal liver grafts such as DCD into organs comparable to DBDs.
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- 2021
13. Multicentric Study on Total Pancreatectomies
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Jose M. Ramia, Elena Martin-Perez, Ignasi Poves, Joan Fabregat-Prous, Javier Larrea y Olea, Francisco Sanchez-Bueno, Francisco Botello-Martinez, Javier Briceño, Alberto Miyar-de León, Mario Serradilla, Angel Moya-Herraiz, Joan Fabregat Prous, Lluis Secanella, Javier Larrea, null Olea, Francisco Sanchez Bueno, Francisco Botello Martinez, Alejandro Serrablo, Joana Ferrer Fabrega, S. Sanchez Cabús, Miguel Angel Gómez Bravo, Javier Padillo, Laia Blanco, J. Balcells, Esteban Cugat, Maribel García Domingo, Luis Muñoz Bellvis, Maria Dolores Perez Diaz, Julio Santoyo Santoyo, Belinda Sanchez, Trinidad Villegas, Silvino Pacho, Luis Díez Valladares, Jose Rebollar, Miguel Ángel Suárez Muñoz, Elías Domínguez, Elena Martín Perez, Laia Falgueras, Vicenç Artigas, Luis Sabater, Agustin Garcia Gil, Jose Ignacio Miota de Llama, Gerardo Manzanet, Jose Carlos Pino, Juan Carlos Rodríguez Sanjuán, F. Lluis, Fabio Ausania, Maialen Alkorta Zuloaga, Jorge Escartín, Manel Salas, Carlos Domingo, Enrique Artigues Sánchez de Rojas, José Antonio Barreras Mateos, José María Fernández Cebrián, Beatriz Pérez Cabrera, D. Padilla Valverde, Alfonso Sanjuanbenito, Ignacio Iturburu Belmonte, Natalia Bejarano, F. García Borobia, Pablo Toral Guinea, Aylhin Lopez Marcano, Francisco Asencio Arana, Evaristo Varo, Rafael Esteban, Juan L. Blas, José M. Jover Navalón, Cristina Fernández Martínez, Enrique Daban Collado, Antonio Calvo Duran, J.C. Vicens, J. Romero, J.M. Badía, Raquel Sánchez, Ricardo de Miguel Ibáñez, Fernando Pardoc, Carlos Francos von Hunefeld, Fernando Pereira, Francisco Garcia Molina, Ignacio Rodríguez Prieto, Alfredo Alonso Poza, Carlos Gilsanz, Jose Miguel Martínez Albert, Miguel Angel Morcillo, Sagrario Martínez Cortijo, José Martín Fernández, Jesús Baquedano, José Castell, Javier Aguiló, and Juan Carlos Bernal
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medicine.medical_specialty ,Intraductal papillary mucinous neoplasm ,business.industry ,medicine.medical_treatment ,General Engineering ,medicine.disease ,Pancreaticoduodenectomy ,Surgery ,medicine.anatomical_structure ,Pancreatic cancer ,Radiological weapon ,medicine ,Adenocarcinoma ,Pancreatitis ,Pancreas ,business ,Artery - Abstract
Introduction Total pancreatectomy (TP) is an uncommon operation, with indications that have not been clearly defined and non-standardized postoperative results. We present a national multicentric study on TP and a comparison with the existing literature. Methods A prospective observational study using data from the national registry of patients after pancreaticoduodenectomy and TP performed for any indication during the study period: January 1–December 31, 2015. Results 1016 patients were included from 73 hospitals, 112 of whom had undergone TP. The percentage of TP from the total number of cases was 11%. The mean age was 63.5 years, and 57.2% were males. The most frequently suspected radiological diagnosis was pancreatic cancer (58/112 cases). The most common TP technique was “mesentery artery first” (43/112 cases). Venous resections were performed in 23 patients (20.5%). The percentage of postoperative complications within 90 days was 50%, but major complications (>IIIA) were only 20.7%. The overall 90-day mortality was 8% (9 patients). The average stay was 20.7 days. The 3 most frequent definitive histological diagnoses were: adenocarcinoma of the pancreas, intraductal papillary mucinous neoplasm and chronic pancreatitis. The R0 rate was 67.8%. Conclusions This study shows that the morbidity and mortality results of TP in Spain are similar or superior to previous publications. More precise TP studies are necessary, focused on specific complications such as endocrine insufficiency.
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- 2019
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14. Estudio multicéntrico nacional sobre pancreatectomías totales
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Jose M. Ramia, Elena Martin-Perez, Ignasi Poves, Joan Fabregat-Prous, Javier Larrea y Olea, Francisco Sanchez-Bueno, Francisco Botello-Martinez, Javier Briceño, Alberto Miyar-de León, Mario Serradilla, Angel Moya-Herraiz, Joan Fabregat Prous, Lluis Secanella, Francisco Sanchez Bueno, Francisco Botello Martinez, Alejandro Serrablo, Joana Ferrer Fabrega, S. Sanchez Cabús, Miguel Angel Gómez Bravo, Javier Padillo, Laia Blanco, J. Balcells, Esteban Cugat, Maribel García Domingo, Luis Muñoz Bellvis, Maria Dolores Perez Diaz, Julio Santoyo Santoyo, Belinda Sanchez, Trinidad Villegas, Silvino Pacho, Luis Díez Valladares, Jose Rebollar, Miguel Ángel Suárez Muñoz, Elías Domínguez, Elena Martín Perez, Laia Falgueras, Vicenç Artigas, Luis Sabater, Agustin Garcia Gil, Jose Ignacio Miota de Llama, Gerardo Manzanet, Jose Carlos Pino, Juan Carlos Rodríguez Sanjuán, F. Lluis, Fabio Ausania, Maialen Alkorta Zuloaga, Jorge Escartín, Manel Salas, Carlos Domingo, Enrique Artigues Sánchez de Rojas, José Antonio Barreras Mateos, José María Fernández Cebrián, Beatriz Pérez Cabrera, D. Padilla Valverde, Alfonso Sanjuanbenito, Ignacio Iturburu Belmonte, Natalia Bejarano, F. García Borobia, Pablo Toral Guinea, Aylhin Lopez Marcano, Francisco Asencio Arana, Evaristo Varo, Rafael Esteban, Juan Laaa Blas, José M. Jover Navalón, Cristina Fernández Martínez, Enrique Daban Collado, Antonio Calvo Duran, J.C. Vicens, J. Romero, J.M. Badía, Raquel Sánchez, Ricardo de Miguel Ibáñez, Fernando Pardoc, Carlos Francos von Hunefeld, Fernando Pereira, Francisco Garcia Molina, Ignacio Rodríguez Prieto, Alfredo Alonso Poza, Carlos Gilsanz, Jose Miguel Martínez Albert, Miguel Angel Morcillo, Sagrario Martínez Cortijo, José Martín Fernández, Jesús Baquedano, José Castell, Javier Aguiló, and Juan Carlos Bernal
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Gynecology ,03 medical and health sciences ,medicine.medical_specialty ,0302 clinical medicine ,business.industry ,medicine ,Surgery ,030230 surgery ,business - Abstract
Resumen Introduccion La pancreatectomia total (PT) es una intervencion infrecuente, con unas indicaciones no claramente definidas y unos resultados postoperatorios no estandarizados. Presentamos un estudio multicentrico nacional sobre PT y una comparacion con la literatura existente. Metodos Estudio prospectivo observacional realizado mediante el registro nacional de pacientes operados de duodenopancreatectomia cefalica y PT realizadas por cualquier indicacion durante el periodo comprendido entre el 1 enero y el 31 diciembre del 2015. Resultados Se incluyo a 1.016 pacientes, pertenecientes a 73 centros; de ellos, 112 correspondian a PT. El porcentaje de PT/numero total de casos es del 11%. La edad media fue 63,5 anos y eran varones un 57,2%. El diagnostico radiologico de sospecha mas frecuente fue cancer de pancreas (58/112 casos). La tecnica de la PT mas habitual fue «arteria mesenterica primero» (43/112 casos). Se efectuaron resecciones venosas en 23 pacientes (20,5%). El porcentaje de complicaciones postoperatorias a 90 dias fue 50%, pero las complicaciones mayores (> IIIA) solo el 20,7%. La mortalidad global a 90 dias fue del 8% (9 pacientes). La estancia media fue 20,7 dias. Los 3 diagnosticos histologicos definitivos mas frecuentes fueron: adenocarcinoma de pancreas, neoplasia mucinosa papilar intraductal y pancreatitis cronica. La tasa de R0 fue del 67,8%. Conclusiones Este estudio demuestra que los resultados de morbimortalidad de la PT en Espana son similares o superiores a los publicados previamente. Es necesario un estudio mas especifico sobre PT centrado en complicaciones especificas, como la insuficiencia endocrina.
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- 2019
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15. A single dose of SARS-CoV-2 FINLAY-FR-1A dimeric-RBD recombinant vaccine enhances neutralization response in COVID-19 convalescents, with excellent safety profile. A preliminary report of an open-label phase 1 clinical trial
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Vicente Verez-Bencomo, Kalet Leon-Monzon, Yaima Zuniga-Rosales, Yanet Jerez-Barcelo, Yury Valdés-Balbín, Carmen Valenzuela-Silva, Marianniz Diaz-Hernandez, Yanet Climent-Ruiz, Juliet Enriquez-Puertas, Maria de los A. Garcia-Garcia, Delia Porto-Gonzalez, Raul Gonzalez-Mugica, Dagmar García-Rivera, Belinda Sanchez-Ramirez, Rocmira Perez-Nicado, Guang-Wu Chen, Pedro Pablo Guerra-Chaviano, Luis Herrera Martinez, Mireida Rodriguez-Acosta, Arturo Chang-Monteagudo, Tays Hernandez-Garcia, Rolando Ochoa-Azze, Rinaldo Puga-Gomez, Luis Dairon Rodríguez-Prieto, Ivette Orosa-Vazquez, Laura Ruiz-Villegas, Yenisey Triana-Marrero, Enrique Noa-Romero, Beatriz Marcheco-Teruel, Consuelo Macías-Abraham, and Laura M. Rodríguez-Noda
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Coronavirus disease 2019 (COVID-19) ,business.industry ,Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ,Phases of clinical research ,Virology ,Neutralization ,law.invention ,Vaccination ,Safety profile ,Preliminary report ,law ,Recombinant DNA ,Medicine ,business - Abstract
We evaluated response to a single dose of the FINLAY-FR-1A recombinant dimeric-RBD base vaccine during a phase I clinical trial with 30 COVID-19 convalescents, to test its capacity for boosting natural immunity. This short report shows: a) an excellent safety profile one month after vaccination for all participants, similar to that previously found during vaccination of naïve individuals; b) a single dose of vaccine induces a >20 fold increase in antibody response one week after vaccination and remarkably 4-fold higher virus neutralization compared to the median obtained for Cuban convalescent serum panel. These preliminary results prompt initiation of a phase II trial in order to establish a general vaccination protocol for convalescents.
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- 2021
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16. New Surgical Realities—Implementation of An Enhanced Recovery After Surgery Protocol for Gynecological Laparoscopy: A Prospective Study
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Beatriz Tripiana Serrano, Emilia Villegas Muñoz, Jesús S Jiménez López, Belinda Sanchez Pérez, and Jose Carlos Vilches Jimenez
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Protocol (science) ,medicine.medical_specialty ,business.industry ,General surgery ,Gynecologic laparoscopy ,Medicine ,business ,Prospective cohort study ,Enhanced recovery after surgery - Abstract
Background Multimodal rehabilitation allows optimization of functional recovery in surgery patients by reducing the post-operative stress and hospital stay duration, without increasing the morbidity and mortality. It is reportedly successful in other surgical disciplines, and guidelines for its application to gynecological surgery are available; however, most evidence for these guidelines is derived from observational and/or retrospective studies. Therefore, this study aimed to investigate the applicability of an enhanced recovery after surgery (ERAS) protocol in laparoscopic gynecological surgery and its influence on the postoperative stay, morbidity, mortality and readmission, through a prospective approach. Methods This prospective cohort study was performed on 90 patients who underwent laparoscopic hysterectomy for benign causes from October 2017 to October 2019. Patients in whom the ERAS (ERAS group, n = 30) and traditional (control group, n = 60) protocols were implemented were compared. All patients were followed for six months. Results The groups were homogeneous and did not differ significantly with respect to the demographic characteristics (age, ASA score, body mass index), surgical indications, and surgery types. Adherence to the ERAS protocol was over 99%. The postoperative hospital-stay durations were 1.73 days (r = 1–3) and 2.97 days (r = 2–6) in the ERAS and control groups (p = 0.000). No significant intergroup differences were observed in the rates of complications and readmissions. Conclusions The ERAS protocol is applicable in laparoscopic gynecological surgery and can be implemented with good adherence. This can allow optimization of patient recovery by reducing the hospital stay duration, without increasing the rates of morbidity, mortality, or readmission.
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- 2021
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17. A single dose of SARS-CoV-2 FINLAY-FR-1A vaccine enhances neutralization response in COVID-19 convalescents, with a very good safety profile: An open-label phase 1 clinical trial
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Delia Porto-Gonzalez, Dagmar García-Rivera, Laura M. Rodríguez-Noda, Marianniz Diaz-Hernandez, Yanet Climent-Ruiz, Vicente Verez-Bencomo, Mireida Rodriguez-Acosta, Enrique Noa-Romero, Belinda Sanchez-Ramirez, Arturo Chang-Monteagudo, Pedro Pablo Guerra-Chaviano, Rolando Ochoa-Azze, Carmen Valenzuela-Silva, Olivia Fernández-Medina, Anet Valdes-Zayas, Yanet Jerez-Barcelo, Tays Hernandez-Garcia, Rocmira Perez-Nicado, Beatriz Marcheco-Teruel, Yenisey Triana-Marrero, Guang-Wu Chen, Laura Ruiz-Villegas, Rinaldo Puga-Gomez, Luis Dairon Rodríguez-Prieto, Maria de los A. Garcia-Garcia, Consuelo Macías-Abraham, Yury Valdés-Balbín, Juliet Enriquez-Puertas, Ivette Orosa-Vazquez, Yaíma Zúñiga-Rosales, and Luis Herrera-Martínez
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Gynecology ,medicine.medical_specialty ,Reactogenicity ,Coronavirus disease 2019 (COVID-19) ,business.industry ,Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ,Phases of clinical research ,Article ,Neutralization ,Vaccination ,Safety profile ,Medicine ,Public aspects of medicine ,RA1-1270 ,Open label ,business - Abstract
Background: As a first step towards a vaccine protecting COVID-19 convalescents from reinfection, we evaluated FINLAY-FR-1A vaccine in a clinical trial. Methods: Thirty COVID-19 convalescents aged 22-57 years were studied: convalescents of mild COVID-19, asymptomatic convalescents, both with PCR-positive at the moment of diagnosis; and individuals with subclinical infection detected by viral-specific IgG. They received a single intramuscular injection of the FINLAY-FR-1A vaccine (50 µg of the recombinant dimeric receptor binding domain). The primary outcomes were safety and reactogenicity, assessed over 28 days after vaccination. The secondary outcome was vaccine immunogenicity. Humoral response at baseline and following vaccination was evaluated by ELISA and live-virus neutralization test. The effector T cellular response was also assessed. Cuban Public Registry of Clinical Trials, WHO-ICTRP: https://rpcec.sld.cu/en/trials/RPCEC00000349-En. Findings: No serious adverse events were reported. Minor adverse events were found, the most common, local pain: 3 (10%) and redness: 2 (6·7%). The vaccine elicited a >21 fold increase in IgG anti-RBD antibodies 28 days after vaccination. The median of inhibitory antibody titres (94·0%) was three times greater than that of the COVID-19 convalescent panel. Virus neutralization titres higher than 1:160 were found in 24 (80%) participants. There was also an increase in RBD-specific T cells producing IFN-I³ and TNF-α. Interpretation: A single dose of the FINLAY-FR-1A vaccine against SARS-CoV-2 was an efficient booster of pre-existing natural immunity, with excellent safety profile. Funding: Partial funding for this study was received from the Project-2020-20, Fondo de Ciencia e Innovacion (FONCI), Ministry of Science, Technology and the Environment, Cuba.â¯â¯â¯RESUMEN. Antecedentes: Como un primer paso hacia una vacuna que proteja a los convalecientes de COVID-19 de la reinfeccion, evaluamos la vacuna FINLAY-FR-1A en un ensayo clinico. Metodos: Se estudiaron treinta convalecientes de COVID-19 de 22 a 57 anos: convalecientes de COVID-19 leve y convalecientes asintomaticos, ambos con prueba PCR positiva al momento del diagnostico; e individuos con infeccion subclinica detectada por IgG especifica viral. Los participantes recibieron una dosis unica por via intramuscular de la vacuna FINLAY-FR-1A (50 µg del dominio de union al receptor recombinante dimerico del SARS CoV-2). Las variables de medida primarias fueron la seguridad y la reactogenicidad, evaluadas durante 28 dias despues de la vacunacion. La variable secundaria, la inmunogenicidad. La respuesta humoral, al inicio del estudio y despues de la vacunacion, se evaluo por ELISA y mediante la prueba de neutralizacion del virus vivo. Tambien se evaluo la respuesta de celulas T efectoras. Registro Publico Cubano de Ensayos Clinicos, WHO-ICTRP: https://rpcec.sld.cu/en/trials/RPCEC00000349-En. Resultados: No se reportaron eventos adversos graves. Se encontraron eventos adversos leves, los mas comunes, dolor local: 3 (10%) y enrojecimiento: 2 (6·7%). La vacuna estimulo un incremento >21 veces de los anticuerpos IgG anti-RBD 28 dias despues de la vacunacion. La mediana de los titulos de anticuerpos inhibidores (94·0%) fue aproximadamente tres veces mayor que la del panel de convalecientes de COVID-19. Se encontraron titulos de neutralizacion viral superiores a 1:160 en 24 (80%) de los participantes. Tambien hubo un aumento en las celulas T especificas de RBD que producen IFN-I³ y TNF-α. Interpretacion: Una sola dosis de la vacuna FINLAY-FR-1A contra el SARS-CoV-2 reforzo eficazmente la inmunidad natural preexistente, con un excelente perfil de seguridad. Financiamiento: Se recibio un financiamiento parcial del Proyecto-2020-20, Fondo de Ciencia e Innovacion (FONCI), Ministerio de Ciencia, Tecnologia y Medio Ambiente, Cuba.
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- 2021
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18. Diagnostic challenges: low-grade adenosarcoma on deep endometriosis
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David Lorente, Iván González Poveda, Emilia Villegas Muñoz, Belinda Sanchez Pérez, Jose Carlos Vilches Jimenez, and Jesús S Jiménez López
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Adult ,medicine.medical_specialty ,Uterus ,Endometriosis ,Extrauterine ,Ovary ,Case Report ,Malignancy ,Pelvic Pain ,lcsh:Gynecology and obstetrics ,Diagnosis, Differential ,medicine ,Humans ,Laparoscopy ,lcsh:RG1-991 ,Ovarian Neoplasms ,Tumor ,medicine.diagnostic_test ,business.industry ,Deep endometriosis ,Adenosarcoma ,lcsh:Public aspects of medicine ,Pelvic pain ,Obstetrics and Gynecology ,lcsh:RA1-1270 ,General Medicine ,medicine.disease ,medicine.anatomical_structure ,Reproductive Medicine ,Uterine Neoplasms ,Female ,Radiology ,medicine.symptom ,Neoplasm Grading ,business - Abstract
Background Müllerian adenosarcoma is a rare malignancy. These tumors occur mainly in the uterus, but also in extrauterine locations, usually related to endometriosis. Because of their rarity, there is limited data on optimal management strategies. Case presentation We present a 44-year-old woman with a history of endometriosis who consults for chronic pelvic pain. In the imaging tests, a heterogeneous mass is observed that impresses endometriosis, encompassing the uterus and left appendage. Surgery is performed by finding an extrauterine adenosarcoma that affected the uterus, ovary and bladder wall. Conclusion This is a rare case but should be considered in a patient with atypical clinical characteristics or preoperative pathology, so we show the diagnostic and therapeutic strategies carried out for the resolution of the case.
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- 2019
19. Fistulización a recto de un teratoma quístico maduro, una rara complicación
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Leopoldo Burgos-García, Belinda Sanchez-Pérez, Jesús S Jimenez-Lopez, Ivan González-Poveda, Joaquín Carrasco-Campos, and José Carlos Vilches-Jimenez
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recto ,Teratoma ,Obstetrics and Gynecology ,fistula ,proceso inflamatorio - Abstract
RESUMEN Los teratomas quísticos maduros son los tumores ováricos más frecuentes. La fistulización de estos a órganos vecinos (colon, intestino delgado y vejiga) es una complicación que cuando se presenta nos obliga a descartar un proceso infiltrativo. Tanto la malignización como la formación de fistulas son complicaciones excepcionales. Está descrito en la bibliografía la malignización como mecanismo de formación de dichas fistulas. Este hecho nos suele obligar a llevar a cabo intervenciones agresivas, como exenteraciones pélvicas anteriores y posteriores. Sin embargo, una revisión de los casos publicados (18) muestra que sólo el 22 % de las fistulas son resultado de una malignización de dicho teratoma. Presentamos una paciente con un teratoma quístico maduro que fistulizó a recto y su manejo en nuestro servicio. Precis: La fistulización a órganos vecinos de un teratoma es una complicación excepcional que requiere un diagnóstico preciso puesto que no siempre es secundaria a neoplasia.
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- 2018
20. Challenges and Opportunities for Cancer Vaccines in the Current NSCLC Clinical Scenario
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Belinda Sanchez and Pedro C. Rodriguez
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Oncology ,medicine.medical_specialty ,Lung Neoplasms ,medicine.medical_treatment ,Disease ,Active immunotherapy ,NSCLC ,Cancer Vaccines ,Article ,Immune system ,Quality of life (healthcare) ,Internal medicine ,Carcinoma, Non-Small-Cell Lung ,Drug Discovery ,Clinical endpoint ,medicine ,Humans ,cancer hallmarks ,business.industry ,Cancer ,Immunosuppression ,General Medicine ,medicine.disease ,Immunology ,Life expectancy ,business ,cancer vaccine - Abstract
This review is aimed to focus on NSCLC as an emerging and promising model for active immunotherapy and the challenges for its inclusion in the current clinical scenario. Cancer vaccines for NSCLC have been focused as a therapeutic option based on the identification of a tumor hallmark and the active immunization with the related molecules that triggers cellular and/or humoral responses that consequently destroy or delay the rate of malignant progression. This therapeutic intervention in an established disease state has been aimed to impact into prolonging patient´s survival with ethically accepted quality of life. Understanding of relationship between structure and function in cancer vaccines is essential to interpret their opportunities to impact into prolonging survival and increasing quality of life in cancer patients. It is widely accepted that the failure of the cancer vaccines in the NSCLC scenario is related with its introduction in the advanced disease stages and poor performance status of the patients due to the combination of the tumor induced immunosuppression with the immune senescence. Despite first, second and emerging third line of onco-specific treatments the life expectancy for NSCLC patients diagnosed at advanced stages is surrounding the 12 months of median survival and in facts the today real circumstances are extremely demanding for the success inclusion of cancer vaccines as therapeutic choice in the clinical scenario. The kinetics of the active immunizations encompasses a sequential cascade of clinical endpoints: starting by the activation of the immune system, followed by the antitumor response and finalizing with the consequential impact on patients’ overall survival. Today this cascade of clinical endpoints is the backbone for active immunization assessment and moreover the concept of cancer vaccines, applied in the NSCLC setting, is just evolving as a complex therapeutic strategy, in which the opportunities for cancer vaccines start from the selection of the target cancer hallmark, followed by the vaccine formulation and its platforms for immune potentiating, also cover the successful insertion in the standard of care, the chronic administration beyond progression disease, the personalization based on predictors of response and the potential combination with other targeted therapies.
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- 2013
21. Vascular resection in pancreatic surgery: indications, operative technique and outcomes. Spanish multicenter study
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Muñoz, Miguel Angel Suarez, BELINDA SANCHEZ PEREZ, NURIA PELAEZ SERRA, LAIA FALGUERAS VERDAGUER, CRUZ ZAZPE RIPA, JOSE LUIS GARCIA SABRIDO, ELENA MARTIN PEREZ, TRINIDAD VILLEGAS HERRERA, MANUEL BARRERA GOMEZ, RAFAEL MORALES, JUAN MANUEL SANCHEZ HIDALGO, and JULIO SANTOYO SANTOYO
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- 2013
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22. Factors Influencing Administrators’ Empowerment and Financial Management Effectiveness
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Belinda Sanchez Villegas
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Integrated business planning ,Sustainable development ,Knowledge management ,business.industry ,Accounting management ,media_common.quotation_subject ,education ,Financial Management effectiveness ,Monitoring and evaluation ,Plan (drawing) ,Integrated Clarity (IC) ,law.invention ,Financial management ,law ,CLARITY ,Integrated Planning ,General Materials Science ,Empowerment ,business ,Budgeting and Monitoring System (IPBMS) ,health care economics and organizations ,media_common - Abstract
This study determined the relationship between the identified factors of Administrators’ Empowerment based on the Integrated Clarity (IC) framework of Miyashiro and Rosenberg (2007) on Identity, Life Affirming Purpose, Direction, Structure, Energy and Expression and Financial Management effectiveness on Planning, Budgeting, Monitoring and Evaluation. The identified factors on Administrators’ empowerment and the functions of financial management effectiveness are significantly reinforced by Integrated Planning, Budgeting and Monitoring System (IPBMS) principles and to some extent in relation to the Length of service and financial management training and preparation under the Administrators’ characteristics. The findings served as bases for a proposed empowerment and financial sustainable development plan.
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