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Abstract Background: Working memory-based spatial cognition has attracted the attention of the scientific community in navigation and reorientation projects. The dominant approach considers that spontaneous spatial navigation behavior is based merely on environmental geometry (built and natural environmental objects). In this domain, DCD (Developmental Coordination Disorder) motor skill orientation problems have been frequently associated with poor visuospatial cognition, while immersive VR environments encourage more repetition, allowing for faster motor skill development and recovery. Objective: This pilot study tested the functionality of an immersive VR environment with environmental geometry (rectangular arena rich in symmetry) and featural landmark cues (striped wall, flora) as a route-learning tool for children with motor skill disorders. Methods: Forty DCD children aged 5 to 8 years (20 boys and 20 girls); five (5) 3D reality modeling setups with orthogonality, symmetry, and striped walls as design parameters; and trial walk-through coordination exercises using a predefined visual pathway with different motor control conditions (daylight, darkness). Participants' path completion rate, path completion time, and walk-through satisfaction were recorded as route-learning performance variables and analyzed statistically. Results/findings: DCD children's spatial orientation was statistically shown to be more stable and robust (in path completion rates, termination time, and walk-through level of satisfaction) in a virtual 3D environment rich in orthogonality, symmetry, and featural cues as landmarks. In this compound environmental geometry setup, training functionality and immersive learning performance enjoyed an 8.16% better path completion rate, a 12.37% reduction in path completion time, and 32.10% more walk-through satisfaction than reality modeling setups poor in geometry and landmarks. The effectiveness and robustness were validated statistically. Conclusion: Children with motor skill difficulties train and learn better in virtual 3D environments that are rich in orthogonality, symmetry, and featural landmark cues.
Resumen Antecedentes: La cognición espacial basada en la memoria de trabajo ha atraído la atención de la comunidad científica en proyectos de navegación y reorientación. El enfoque dominante considera que el comportamiento espontáneo de navegación espacial se basa meramente en la geometría ambiental (objetos ambientales construidos y naturales). En este ámbito, los problemas de orientación de las habilidades motoras del TDC (Trastorno del Desarrollo de la Coordinación) se han asociado con frecuencia a una cognición visoespacial deficiente, mientras que los entornos de RV (Realidad Virtual) inmersivos fomentan una mayor repetición, lo que permite un desarrollo y una recuperación más rápidos de las habilidades motoras. Objetivo: Este estudio piloto probó la funcionalidad de un entorno de RV inmersiva con geometría ambiental (arena rectangular rica en simetría) y señales de puntos de referencia característicos (pared rayada, flora) como herramienta de aprendizaje de rutas para niños con trastornos de la habilidad motora. Métodos: Cuarenta niños con TDC de entre 5 y 8 años (20 niños y 20 niñas); cinco (5) configuraciones de modelado de realidad 3D con ortogonalidad, simetría y paredes rayadas como parámetros de diseño; y ejercicios de coordinación de recorrido de prueba utilizando una ruta visual predefinida con diferentes condiciones de control motor (luz diurna, oscuridad). Se registraron la tasa de finalización del recorrido, el tiempo de finalización del recorrido y el grado de satisfacción de los participantes como variables de rendimiento del aprendizaje de recorridos y se analizaron estadísticamente. Resultados: Se demostró estadísticamente que la orientación espacial de los niños con TDC era más estable y robusta (en tasas de finalización del camino, tiempo de finalización y nivel de satisfacción del recorrido) en un entorno 3D virtual rico en ortogonalidad, simetría y señales de características como puntos de referencia. En esta configuración de geometría ambiental compuesta, la funcionalidad del entrenamiento y el rendimiento del aprendizaje inmersivo disfrutaron de un 8,16% más de tasa de finalización de ruta, una reducción del 12,37% en el tiempo de finalización de ruta y un 32,10% más de satisfacción de recorrido que las configuraciones de modelado de realidad pobres en geometría y puntos de referencia. La eficacia y la solidez se validaron estadísticamente. Conclusiones: Los niños con dificultades motrices entrenan y aprenden mejor en entornos virtuales 3D ricos en ortogonalidad, simetría y puntos de referencia característicos.
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Abstract Introduction: Evidence suggests that herbivores, such as peccaries, shape vegetation structure and diversity through predation, trampling, dispersal, and rooting behavior. Objective: To evaluate the impact of peccaries (Dycotiles tajacu) on the understory vegetation of the tropical rainforest in the Nogal-La Selva Local Biological Corridor, Costa Rica, comparing a site with the absence of peccaries to another with the presence of these animals. Methodology: From June to November 2021, 20 experimental exclusions and 20 free access plots, each measuring 2 m2 were used to quantify herbivory, the number of leaf blades, damaged leaves, healthy leaves, sapling height, and fallen biomass at both sites. Results: A higher sapling density was found in the Nogal Reserve, but a lower sapling diversity, while in La Selva there was a higher sapling diversity, but a lower density of seedlings. Herbivory and sapling height in La Selva exceeded those in Nogal. The exclusion of peccaries reduced seedling damage but did not affect the dynamics of fallen biomass. Conclusion: For the design, implementation, and evaluation of the effectiveness of biological corridors, it is crucial to consider plant-animal interactions to enhance the flow of ecological processes through functional and structural connectivity, analyzed from interactions such as those presented in this paper.
Resumen Introducción: Existe evidencia que herbívoros, como los saínos, dan forma a la estructura y diversidad de la vegetación a través del comportamiento de depredación, pisoteo, dispersión y enraizamiento. Objetivo: Evaluar el impacto de los saínos (Dycotiles tajacu) en la vegetación del sotobosque del bosque tropical húmedo en el Corredor Biológico Local Nogal-La Selva, Costa Rica, en un sitio con ausencia y en otro con presencia de saínos. Métodos: De junio a noviembre de 2021 se utilizaron 20 exclusiones experimentales y 20 parcelas de acceso libre de 2 m2, se cuantifico la herbivoría, número de láminas foliares, hojas dañadas, hojas sanas, altura de brinzales y biomasa caída en ambos sitios. Resultados: Se encontró una mayor densidad de brinzales en Reserva Nogal pero una menor diversidad, contrario en La Selva donde se encontró una mayor diversidad de brinzales, pero una menor densidad de plántulas. La herbivoría y la altura de brinzales en La Selva fue mayor que en Nogal. La exclusión de los saínos disminuyó el daño a las plántulas, pero no afectó la dinámica de la biomasa caída. Conclusión: Es necesario contemplar para el diseño, implementación y evaluación de la efectividad de corredores biológicos, las interacciones planta-animal, para potencializar el flujo de procesos ecológicos mediante la conectividad funcional y estructural, analizada a partir de interacciones como las presentadas en este trabajo.
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Animais , Artiodáctilos , Florestas , Distribuição Animal , Ecossistema Tropical , Costa RicaRESUMO
Compared to typical bandaging materials, fish skin bandages have shown great promise as a wound treatment option. Fish skin is abundant, biocompatible, and naturally antibacterial, which makes it an ideal material for wound dressings. Moreover, fish skin shares a structure with human skin, which promotes improved integration with the wound bed and helps injured tissue regenerate. Fish skin bandages have emerged as a possible option for wound healing due to their unique biological features. This study examines the efficacy of fish skin bandages in wound treatment. Methods: This article attempts to understand the efficacy and mechanisms of action of fish skin bandages in encouraging wound healing by analyzing existing research, describing the biological makeup of fish skin, and investigating current investigations. Results: The results show that fish skin bandages have anti-inflammatory, antibacterial, and tissue-regenerative capabilities, making them an appealing solution for a variety of wounds Conclusion: The use of fish skin in wound treatment improves environmental sustainability by recycling fish waste. However, further study is needed to improve the manufacture, standardization, and therapeutic use of fish skin bandages.
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El parto humanizado es un modelo de atención que considera el respeto a las opiniones y necesidades de las mujeres y sus familias, e incluye la atención durante el embarazo, parto, puerperio y, por supuesto, la atención del recién nacido. En Venezuela, existe legislación suficiente que respalda la atención del parto humanizado o respetado, sin embargo, la misma no es conocida por gran parte del personal de salud involucrado en la atención obstétrica. Es necesario que tal legislación se conozca ampliamente y se aplique. La presente revisión se realizó con la intención de revisar los fundamentos legales que respaldan la atención del parto respetado(AU)
Humanized childbirth is a model of care that considers respect for the opinions and needs of women and their families, and includes care during pregnancy, childbirth, puerperium and, of course, newborn care. In Venezuela, there is sufficient legislation that supports humanized or respected childbirth care, however, it is not known by a large part of the health personnel involved in obstetric care. Such legislation needs to be widely known and implemented. This review was conducted with the intention of reviewing the legal foundations that support respected childbirth care(AU)
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Humanos , Feminino , Pessoal de Saúde , Parto Humanizado , Normas Jurídicas , Gestantes , Trabalho de Parto , Hospitais , JurisprudênciaRESUMO
Information on the knowledge and ways of using food and medicinal plants by traditional populations, family farmers and Brazilian native population in the Amazon is essential to guarantee the food sovereignty of these groups. This study was conducted using semi-structured interviews applied to local respondents. A total of 269 species of both non-conventional food plants and medicinal plants were identified, distributed in 83 botanical families and 198 genera. The Arecaceae and Lamiaceae families had the highest species richness (11 and 7, respectively). The Shannon-Wiener (H') and Pielou (J') diversity indices were considered high (5.02 and 0.9, respectively) when compared to other ethnobotanical works. In the environment in which these families are found, these species become the only food and medicinal resources available.
La información sobre los saberes y formas de uso de las plantas alimenticias y medicinales por parte de las poblaciones tradicionales, agricultores familiares e indígenas brasileños en la Amazonía es fundamental para garantizar la soberanía alimentaria de estos grupos. Este estudio se realizó utilizando entrevistas semiestructuradas aplicadas a encuestados locales. Se identificaron un total de 269 especies tanto de plantas alimenticiasno convencionales como de plantas medicinales, distribuidas en 83 familias botánicas y 198 géneros. Las familias Arecaceae y Lamiaceae tuvieron la mayor riqueza de especies (11 y 7, respectivamente). Los índices de diversidad de Shannon-Wiener (H') y Pielou (J') fueron considerados altos (5,02 y 0,9, respectivamente) en comparación con otros trabajos etnobotánicos. En el ambiente en que se encuentran estas familias, estas especies se convierten en los únicos recursos alimenticios y medicinales disponibles.
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Plantas Comestíveis , Plantas Medicinais , Etnobotânica , Brasil , Inquéritos e Questionários , Abastecimento de AlimentosRESUMO
Objectives. This work sought to identify the academic communities that have shown interest and participation in the Journal Research and Education in Nursing and analyze the scientific impact generated by said journal. Methods. A bibliometric analysis was carried out, as well as social network analysis and techniques of natural language processing to conduct the research. The data was gathered and analyzed during a specific study period, covering from 2010 - 2020, for articles published in the journal, and 2010 - 2022, for articles that cited the journal within Scopus. These methods permitted performing an exhaustive evaluation of the journal's influence and reach in diverse academic and geographic contexts. Results. During the analysis, it was noted that the journal Research and Education in Nursing has had significant influence in academic and scientific communities, both nationally and internationally. Collaboration networks were detected among diverse institutions and countries, which indicates active interaction in the field of nursing research. In addition, trends and emerging patterns were identified in this field, providing a more complete view of the discipline's evolution. Conclusion. Based on the results obtained, it is concluded that the journal Research and Education in Nursing has played un fundamental role in disseminating knowledge and promoting research in nursing. The combination of Bibliometric metrics, social network analysis, and natural language processing permitted utmost comprehension of its impact in the scientific and academic community globally.
Objetivos. Identificar las comunidades académicas que han mostrado interés y participación en la revista Investigación y Educación en Enfermería y analizar el impacto científico generado por esta publicación. Métodos. Se realizó un análisis bibliométrico, así como análisis de redes sociales y técnicas de procesamiento de lenguaje natural para llevar a cabo la investigación. Los datos se recopilaron y analizaron durante un período de estudio específico, abarcando los años 2010-2020, para los artículos publicados en la revista, y 2010-2022, para los artículos que citaron la revista dentro de Scopus. Estos métodos permitieron realizar una evaluación exhaustiva de la influencia y alcance de la revista en diversos contextos académicos y geográficos. Resultados. Durante el análisis, se observó que la revista Investigación y Educación en Enfermería ha ejercido una influencia significativa en las comunidades académicas y científicas, tanto a nivel nacional como internacional. Se detectaron redes de colaboración entre diversas instituciones y países, lo que indica una interacción activa en el ámbito de la investigación en enfermería. Además, se identificaron tendencias y patrones emergentes en este campo, proporcionando una visión más completa de la evolución de la disciplina. Conclusión. Basándose en los resultados obtenidos, se concluye que la revista Investigación y Educación en Enfermería ha desempeñado un papel fundamental en la difusión del conocimiento y la promoción de la investigación en enfermería. La combinación de métricas bibliométricas, análisis de redes sociales y procesamiento de lenguaje natural permitió una comprensión más completa de su impacto en la comunidad científica y académica a nivel global.
Objetivos. Identificar as comunidades acadêmicas que demonstraram interesse e participação na revista Nursing Research and Education e analisar o impacto científico gerado por esta publicação colombiana. Métodos. Foi realizada análise bibliométrica, análise de redes sociais e técnicas de processamento de linguagem natural para a realização da pesquisa. Os dados foram coletados e analisados durante um período específico de estudo, abrangendo os anos 2010-2020, para artigos publicados na revista, e 2010-2022, para artigos que citaram a revista dentro do Scopus. Esses métodos permitiram uma avaliação abrangente da influência e do alcance da revista em diversos contextos acadêmicos e geográficos. Resultados. Durante a análise, observou-se que a revista Nursing Research and Education tem exercido influência significativa nas comunidades acadêmica e científica, tanto nacional quanto internacionalmente. Foram detectadas redes de colaboração entre diversas instituições e países, o que indica interação ativa no campo da pesquisa em enfermagem. Além disso, foram identificadas tendências e padrões emergentes neste campo, proporcionando uma visão mais completa da evolução da disciplina. Conclusão. Com base nos resultados obtidos, conclui-se que a revista Nursing Research and Education tem desempenhado um papel fundamental na divulgação do conhecimento e na promoção da investigação em enfermagem. A combinação de métricas bibliométricas, análise de redes sociais e processamento de linguagem natural permitiu uma compreensão mais completa do seu impacto na comunidade científica e académica global.
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Humanos , Masculino , Feminino , Pesquisa , Educação , Análise de Rede Social , Processamento de Linguagem NaturalRESUMO
ABSTRACT Fires are one of the most aggressive and sudden disturbances that can affect ecosystems. During the first months of the year 2022, a series of fires of great magnitude spread in the Iberá streams, which is the largest wetland in Argentina and the second largest in South America after the Pantanal in Brazil, with devastating environmental and social consequences. The aim of this study is to analyze the fires that occurred in the Iberá Reserve and National Park located in the province of Corrientes at the beginning of the year 2022 using remote sensing techniques through the Google Earth Engine processing platform. In this study, the total affected areas were calculated and their severity was analyzed. The results indicate that approximately 20 % of the reserve and close to 50 % of the Iberá National Park have been burned, with a predominance of severity levels ranging from moderate high to high. Remote sensing techniques are a significant resource in fire monitoring, making it a powerful tool in planning regulations or measures aimed at contributing to the mitigation, management, and early warning of fires.
RESUMEN Los incendios son una de las perturbaciones o disturbios más agresivos y repentinos que pueden afectar a los ecosistemas. Durante los primeros meses del año 2022 se propagaron una serie de incendios de gran magnitud en los esteros del Iberá, el cual es el mayor humedal de Argentina y el segundo de Sudamérica luego del Pantanal en Brasil, con consecuencias ambientales y sociales devastadoras. El objetivo del trabajo consiste en analizar los incendios ocurridos en la reserva y el Parque Nacional Iberá ubicada en la provincia de Corrientes a principios del año 2022 aplicando técnicas de teledetección a través de la plataforma de procesamientos de Google Earth Engine. En este trabajo se calculó las áreas totales afectadas analizándose la severidad de estas. Los resultados muestran que se ha quemado alrededor del 20 % de la reserva y cerca del 50 % del Parque Nacional Iberá con predominio de niveles de severidad entre moderada alta y alta. Las técnicas de teledetección son un insumo significativo en el monitoreo de incendios, lo que la vuelve una herramienta potente en la planificación de normativas o medidas que contribuyan con la mitigación, gestión y alerta temprana de incendios.
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Pregnancy, despite being a physiological process, can lead to morbidity and mortality, which is increased at risk ages, defined as younger or equal to15 years and older or equal to 35 years. For an adequate approach it is necessary to know the local reality of the population, therefore, the objective of this study is to describe and analyze the discharges of births and cesarean sections at risk age in the Maule Region from 2017 to 2021 using the database collected from the Biostatistics Unit of the Maule Health Service, which includes the hospitals of the region. Within the observed period, a total of 30,599 deliveries and cesarean sections were studied, being these a total of 5,581 at risk age, of which 0.65% corresponds to women younger or equal to 15 years and 17.57% to women older or equal to 35 years. There is a downward tendency in births in general, mostly evidenced in less or equal to 15 years, and on the contrary, a rise in births and cesarean sections of more or equal to 35 years, differing with the statistics at the country level. The tendency of increasing maternal age of pregnancies in the Maule region and its consequences are a fundamental factor when planning new public policies, so we consider it of vital importance to promote research and update the evidence, with a focus on the local population.
El embarazo a pesar de ser un proceso fisiológico puede conllevar morbimortalidad, la cual se acrecienta en edades de riesgo, definida como menor o igual a 15 años y mayor o igual a 35 años. Para el adecuado enfrentamiento se necesita conocer la realidad local, por ello, el objetivo de este estudio es describir y analizar los egresos de partos y cesáreas en edad de riesgo en la Región del Maule desde el año 2017 a 2021 utilizando la base de datos recogida desde la Unidad de Bioestadística del Servicio de Salud Maule, la cual incluye los hospitales de la región. Dentro del periodo observado se estudió un total de 30.599 partos y cesáreas, siendo estos un total de 5.581 en edad de riesgo, de los cuales 0.65% corresponde a mujeres menores o igual a 15 años y 17.57% a mujeres mayores o igual a 35 años. Existe una tendencia a la baja de los nacimientos en general, mayormente evidenciado en menores o igual a 15 años, y por el contrario, un alza en los partos y cesáreas de mayores o igual a 35 años, difiriendo con las estadísticas a nivel país. El aumento de la edad materna de los embarazos en la región del Maule y sus consecuencias son un factor fundamental a la hora de planificar nuevas políticas públicas, por lo que consideramos de vital importancia promover la realización de investigaciones y actualización de la evidencia sobre el tema, con un enfoque en la población local.
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Humanos , Feminino , Gravidez , Adolescente , Adulto , Cesárea/estatística & dados numéricos , Serviços de Saúde Materna/estatística & dados numéricos , Chile/epidemiologia , Epidemiologia Descritiva , Incidência , Estatísticas Hospitalares , Fatores de Risco , Idade Materna , Gravidez de Alto Risco , Parto , Hospitais Públicos/estatística & dados numéricosRESUMO
Resumen Reportamos seis nuevos casos de aves silvestres con aberración cromática provenientes de cuatro provincias de Ecuador. Los registros fotográficos provienen de observaciones oportunistas. El presente es el primer registro de plumaje aberrante para Anas bahamensis, Florisuga mellivora, Opisthocomus hoazín, Dendrocincla fuliginosa y Asemospiza obscura; mientras que se suman casos de individuos aberrantes en Turdus fuscater. El caso de F. mellivora es el más relevante por su rareza y evidencia patrones de coloración en la especie. Resaltamos la importancia de documentar y publicar el encuentro de estos eventos.
Abstract We report six new cases of wild birds with chromatic aberration from four provinces of Ecuador. The photographic records come from opportunistic observations. This is the first record of aberrant plumage for Anas bahamensis, Florisuga mellivora, Opisthocomus hoazín, Dendrocincla fuliginosa y Asemospiza obscura; while cases of aberrant individuals are added in Turdus fuscater. The case of F. mellivora is the most relevant due to its rarity and evidence of coloration patterns in the species. We highlight the importance of documenting and publishing the encounter of these events.
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Los tumores de músculo liso que no pueden ser clasificados según su histología como leiomiomas o leiomiosarcomas se denominan tumores de músculo liso de comportamiento maligno incierto. La localización nasal de estos tumores es muy infrecuente y la extensión adecuada de la cirugía para tratar estas neoplasias no está bien definida. Se describe el caso clínico de una adolescente de 16 años, que consultó por padecer un tumor de aspecto vascular en la cavidad nasal derecha y que fue tratada con éxito mediante cirugía intranasal. El diagnóstico histológico fue tumor de músculo liso de comportamiento maligno incierto. Por la rareza de estas neoplasias, su infrecuente localización nasal y la falta de evidencia que soporte cuál debe ser la extensión de la cirugía, es relevante la descripción y discusión del caso clínico.
Smooth muscle tumors that cannot be histologically classified as leiomyomas or leiomyosarcomas are defined as smooth muscle tumors of uncertain malignant potential. The location of these tumors in the nose is very rare, and the appropriate surgical extent to manage these neoplasms has not been adequately defined. Here we describe the case of a 16-year-old female adolescent who consulted due to a vascular-like tumor in the right nasal cavity who was successfully treated with intranasal surgery. The histological diagnosis was smooth muscle tumor of uncertain malignant potential. Given that these neoplasms are rare, the uncommon location in the nose, and the lack of evidence indicating the extent of surgery, it is relevant to describe and discuss this clinical case.
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Humanos , Feminino , Adolescente , Tumor de Músculo Liso/cirurgia , Tumor de Músculo Liso/diagnóstico , Tumor de Músculo Liso/patologia , Leiomioma/patologia , Leiomiossarcoma/diagnóstico , Leiomiossarcoma/patologiaRESUMO
By combing the application and funding situation of general， young scholar and regional scholar programs from National Natural Science Foundation of China（NSFC） in field of integrated traditional Chinese and western medicine in 2023， this paper summarizes the distribution of supporting units， application and funding hotspots， and the problems of application and funding projects in this discipline， in order to provide a reference for applicants and supporting organizations to understand the hotspot dynamics and reporting requirements of the discipline. In 2023， the discipline of integrated traditional Chinese and western medicine received a total of 2 793 applications， and there were 1 254 applications for general programs， 1 278 applications for young scholar programs， and 261 applications for regional scholar programs. The amounts of project funding obtained by the three were 145， 164 and 35， respectively， and the funding rates were 11.56%， 12.83% and 13.41% in that order. From the situation of obtaining funding， the age distribution of the project leaders who obtained funding for the general， young scholar and regional scholar programs were mainly distributed in the age of 40-46， 30-34， 38-44 years， respectively. Within the supported programs， the Chinese medicine affiliations accounted for 55.52%. With respect to research subjects， the proportion of one single Chinese herbs， or monomers， or extracts accounted for 29.4%， but the proportion of Chinese herb pairs or prescriptions accounted for 47.1%. Research hotspots included ferroptosis， bile acid metabolism， macrophages， mitochondria， microglia， exosomes， intestinal flora， microecology and so on. The current research mainly focused on the common key problems of the advantageous diseases of Chinese and western integrative medicine， but still need to be improved in the basic theories of Chinese and western medicine and multidisciplinary cross-disciplinary research.
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Atopic dermatitis （AD） is a chronic， recurrent， inflammatory， and pruritus skin disease caused by multiple internal and external factors， ranking first in the global burden of skin diseases. Due to the adverse reactions and high costs of conventional treatments and biologics， the development of natural products has attracted much attention. The nuclear factor-κB （NF-κB） signaling pathway is a key pathway for inhibiting inflammation and modulating immunity. This paper summarizes the pharmacological effects and molecular mechanisms of natural products such as flavonoids， alkaloids， phenols， terpenoids， coumarins， glycosides， and anthraquinones via NF-κB signaling pathway， aiming to provide guidance for the development of natural products. Basic studies have shown that natural products have high safety and efficacy. Oral or topical administration of natural products can regulate the phosphatidylinositol 3-kinase （PI3K）/protein kinase B （Akt）， mitogen-activated protein kinase （MAPK）， nuclear factor erythroid 2-related factor 2 （Nrf2）， high mobility group box 1 protein （HMGB1）/receptor for advanced glycation endproducts （RAGE）， and nucleotide-binding oligomerization domain-like receptor protein 3 （NLRP3） signaling pathways to exert anti-inflammatory， anti-allergy， antioxidant activities， thus reversing the pathological changes of AD. However， it is worth noting that the clinical application of natural products is still insufficient， and more rigorous clinical trials are still needed to verify their effects. The basic experiments and clinical evidence prove that natural products may play a role in alleviating AD， which provide a basis for evaluating the functioning mechanism of natural active substances and enrich the candidates for the development of potential drugs.
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Sesquiterpenoids are widely found in nature, while nitrobenzoyl sesquiterpenoids are relatively rare. Twelve natural nitrobenzoyl sesquiterpenoids were all derived from marine Aspergillus fungi, which are typical natural products with marine characteristics. These natural products exhibit good antitumor, antiviral, and inhibition of osteoclast differentiation activity, especially in the treatment of osteoclast-related diseases, showing good medicinal development value. This article reviews the natural product sources, chemical structure, chemical synthesis, biosynthesis, bioactivity, and pharmacological mechanisms of nitrobenzoyl sesquiterpenoids and predicts and discusses their absorption, distribution, metabolism, excretion, toxicity (ADME/T), and drug-likeness, providing a comprehensive understanding of the natural products of nitrobenzoyl sesquiterpenoids from marine sources and their potential for pharmaceutical development.
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Sesquiterpenoids are natural compounds composed of 15 carbon atoms， which can be divided into sesquiterpene alcohols， ketones， lactones， aldehydes， and carboxylic acids according to oxygen groups. These compounds are widely distributed in nature， and their physiological activities are diverse. For example， many sesquiterpenes with potential anticancer effects have been found for anti-tumor effects， including cytotoxicity， antioxidant， immune regulation， cell proliferation， and so on. In addition， some sesquiterpenoids have good application prospects in antibacterial， anti-inflammatory， and anti-cardiovascular diseases. Malignant tumors， inflammation， bacterial diseases， and cardiovascular diseases are the main diseases that cause human death， and natural products have unique advantages in the treatment of these diseases. Therefore， the development of new drugs that are easy to promote has become a new research hotspot. In this paper， the sesquiterpenes extracted from the natural components of Chinese herbs and plants with anti-tumor， anti-inflammatory， antibacterial， and anti-cardiovascular activities， such as Xanthium， Atractylodes， Convolvulus， Acanthium， Ligularia， Artemisia， Ligularia， Ligularia， Labiaceae Mint， Acanthophyllum， Turmeria， Ginger， and other Chinese herbs and plants， were discussed. The biological activities and related mechanisms of this compound were reviewed， which provided a reference for further research and clinical application of sesquiterpenes.
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Objective@#To investigate the potential caries prevention mechanism of the Xinjiang Mori cortex and to analyze its effect on the main cariogenic bacteria.@*Methods@#The active components of the Xinjiang Mori cortex and the main targets were predicted and screened using the TCMSP database. The GeneCards, DisGENET and TTD databases were used to obtain caries-related targets. The common targets were derived, and core genes were screened. The enrichment analysis was performed using the DAVID data platform. Molecular docking was performed using AutoDock software. In in vitro antibacterial experiments, first, the 50% minimum inhibitory concentration (MIC50) and the minimum bactericidal concentration (MBC) of the Xinjiang Mori Cortex extract against Streptococcus mutans, Streptococcus sanguis and Actinomyces viscosus were determined and the growth curves were measured. The effects of the Xinjiang Mori Cortex extract on acid production, polysaccharide production and adhesion ability of Streptococcus mutans, Streptococcus sanguis and Actinomyces viscosus in the planktonic state were determined. The 50% minimum biofilm inhibition concentration (MBIC50) and 50% minimum biofilm reduction concentration (MBRC50) were determined by crystal violet staining, and biofilm morphology was visualized using scanning electron microscopy (SEM).@*Results@#The main active components of the Xinjiang Mori cortex included quercetin, kaempferol, and β-sitosterol. Tumor necrosis factor (TNF), interleukin-6 (IL-6), and interleukin-1beta (IL-1β) could be the most important targets of the Xinjiang Mori cortex for the prevention of dental caries. The enrichment analysis results showed that Mori cortex extract may have effects on the AGE-RAGE signaling pathway, IL-17 signaling pathway, and TNF signaling pathway. The antibacterial experiment results showed that the MIC50 values of Xinjiang Mori Cortex extract against Streptococcus mutans, Streptococcus sanguis and Actinomyces viscosus were 0.5, 0.5 and 0.25 mg/mL, respectively, and the MBCs were 4.0, 2.0 and 1.0 mg/mL, respectively. The inhibitory effect of Xinjiang Mori Cortex extract on the acid production, polysaccharide production and adhesion ability of three major cariogenic bacteria in the planktonic state was stronger than that of the control group, and the differences were statistically significant (P<0.05). The MBIC50 was 1.0, 1.0, and 0.5 mg/mL, and the MBRC50 was 4.0, 4.0, and 2.0 mg/mL. SEM observation showed that the amount of biofilm formation decreased with the drug concentration compared with the control group.@*Conclusion@#Xinjiang Mori cortex extract can prevent caries through quercetin, kaempferol, and β-sitosterol active ingredients, TNF、IL-6、IL-1β key targets and multiple pathways and inhibit the growth, acid production, polysaccharide production, and adhesion ability of three major cariogenic bacteria in the planktonic state and has some inhibitory effect on corticogenic biofilm formation.
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Heart failure is the terminal stage of various cardiovascular diseases and a leading cause of death. For a long time, natural medicines have been used to treat heart failure（HF） with remarkable effects. In this paper, the Traditional Chinese Medicine compound patents in the national patent database were mined, common Traditional Chinese Medicines for the clinical treatment of HF were selected, and the single active ingredient contained in them was analyzed, which provided some valuable tips for the development of drugs for the treatment of heart failure.
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Objective To understand the epidemiological characteristics of scrub typhus disease and to provide a scientific basis for the prevention and control of scrub typhus disease. Methods Descriptive epidemiological methods were used to analyze the population and regional distribution of scrub typhus. Seasonal characteristics were analyzed using concentration method and circular distribution method, and incidence trend was analyzed using joinpoint regression model. Results The annual incidence rate of scrub typhus was 0.95/100 000 from 2010 to 2022. The incidence rate of male was 0.77/100 000, lower than that of female 1.12/100 000 (χ2=18.89, P-=-62.3728, S=20.8960. The circular distribution results indicated that the peak day was October 19th, and the peak period was between October 7 to December 19. The average annual percentage change (AAPC) of the incidence rate from 2010 to 2022 was 13.70%, 95% CI (-8.62%~41.48%), and the incidence rate showed an upward trend (t=1.15, P=0.249). Conclusion The incidence of scrub typhus disease is strictly seasonal, and the incidence rate over the years shows an upward trend. It is necessary to strengthen monitoring and take various intervention measures to reduce the risk of scrub typhus disease.
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Objective:To develop a skeleton structure for the flexible manipulator of a robotic system used in natural orifice transluminal endoscopic surgery (NOTES), meeting the performance requirements of surgical actuators.Methods:A flexible manipulator structure and a control strategy for the corresponding structure were designed based on metal braiding technology. Geometric relationship formulas were derived according to the mechanical structure characteristics of the flexible manipulator. A theoretical model was established using the chained beam-constraint-model (CBCM) and mechanical spring theory. The finite element model of the mechanical structure was established, and simulation analysis was performed to verify the accuracy of the theoretical model. The bending stiffness of the metal-braided structure was tested to verify the load capacity of the flexible manipulator.Results:A flexible manipulator structure and a control strategy for the corresponding structure were designed based on metal braiding technology. With proper constraints, the maximum strain of the metal ring as a single stressed unit was about 1.49% when subjected to an axial force of 0.5 N. At this time, the material was in the linear elastic phase and the maximum deformation was about 0.308 9 mm, which was 3.26% higher than the theoretical value. The maximum strain of the manipulator skeleton was about 0.21% in the linear elastic phase. The maximum total deformation was about 7.135 5 mm, which was 6.30% higher than the theoretical value. The flexural stiffness of the manipulator skeleton was calculated to be 3.19 N·mm 2, which was comparable to a flexible manipulator made of shape memory polymers (SMPs) of the same magnitude and size. Conclusions:A skeleton structure for application to NOTES robotic flexible manipulators is developed that meets the support stiffness requirements for performing NOTES surgical tasks.
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Objective To exploring the correlation between the expression level of serum carbohydrate antigen 211(CA211)and the number of natural killer(NK)cells and prognosis in non-small cell lung cancer(NSCLC)pa-tients.Methods 132 NSCLC patients admitted to the Affiliated Hospital of Hangzhou Normal University from June 2019 to July 2022 were selected as the test group,and 132 patients with benign lung lesions during the same period were selected as the control group.Data were collected from the laboratory to analyze the relationship between serum CA211 expression and NK cell count in NSCLC with clinical prognosis,as well as the related factors affecting the prognosis of NSCLC patients.Results The neutrophil to lymphocyte ratio(NLR)and serum CA211 expression in the test group were higher than those in the control group(P＜0.05),while the count of NK cells was less than that in the control group(P＜0.05);The expression level of serum CA211 in the test group was negatively cor-related with the count of NK cells(r=-0.405,P＜0.001);There were significant differences in lymph node metastasis and TNM staging among patients with different levels of serum CA211 expression and NK cell count(P＜0.05);The one-year survival rate of patients with low expression of CA211 was significantly higher than that of patients with high expression of CA211(P＜0.05),and the one-year survival rate of patients with high count of NK cells was higher than that of patients with low count of NK cells(P＜0.05);Lymph node metasta-sis,TNM staging and CA211 level were all risk factors affecting the prognosis of NSCLC patients(P＜0.05),while counting of NK cells was protective factor for the prognosis of NSCLC patients(P＜0.05).Conclusions The level of serum CA211 and the number of NK cells in NSCLC patients are closely related to pathological characteristics and clinical prognosis.
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Objective To compare the clinical efficacy of natural orifice specimen extraction surgery(NOSES)combined with enhanced recovery after surgery(ERAS)and conventional laparoscopic surgery in treatment of rectal cancer patients.Methods A hundred patients with rectal cancer in the Department of Colorectal and Anal Surgery,the 940th Hospital of Joint Logistics Support Force of PLA were selected as the research objects from January 2019 to December 2021,including 49 cases treated with NOSES combined with ERAS were set as the observation group,and 51 cases treated with conventional laparoscopic surgery of rectal cancer were set as the control group.Postoperative C-reactive protein(CRP),procalcitonin(PCT),interleukin-6(IL-6),white blood cell count(WBC),percentage of neutrophil(NEUT),K+ concentration,postoperative peristalsis recovery time,first time out-of-bed activity,first liquid feeding time,removal time of urinary,and drainage tubes,hospital stay and intraoperative blood loss,number of lymph node detection,positive margin rate,incidence of complications,and pain score were compared between the two groups.Results The observation group showed significant lower postoperative CRP,PCT,IL-6 levels when compared with control group(P<0.05),while no significant difference in K+ concentration between the two groups(P>0.05).The recovery time of intestinal peristalsis,the time of the first out-of-bed activity,the first liquid feeding time,the time of removal of the urinary tube and the drainage tube,and the number of days of hospitalization in observation group were all superior to the control group(P<0.05).The observation group with the duration of surgery was longer than the control group,and the difference was statistically significant(P<0.05).There were no significant differences in intraoperative bleeding,number of lymph nodes detected and positive rate of resection margins between the two groups(P>0.05).There was no significant difference in the incidence of complications between the two groups(4.1%vs.7.8%,P>0.05).The observation group showed significant lower pain scores than control group on the 1st,2nd and 3rd day after surgery(P<0.05).Conclusions NOSES combined with ERAS in treatment of rectal cancer patients is safe and feasible,can narrow the surgical incision,alleviate stress response and postoperative pain,improve postoperative efficacy and reduce the occurrence of complications,so is worthy of promotion and application.