Bionatura最新文献_第2页

Biological nematicides as an alternative for control of Meloidogyne incognita populations in yellow pitahaya (Sselenicereus megalanthus). 将生物杀线虫剂作为控制黄桷树（Sselenicereus megalanthus）中 Meloidogyne incognita 种群的替代方法。

Bionatura Pub Date : 2024-03-15 DOI: 10.21931/rb/2024.09.01.4

Yadira Vargas, Jimmy Pico, Neiver Manobanda, Angel Garcia, Jessica Sanmiguel

{"title":"Biological nematicides as an alternative for control of Meloidogyne incognita populations in yellow pitahaya (Sselenicereus megalanthus).","authors":"Yadira Vargas, Jimmy Pico, Neiver Manobanda, Angel Garcia, Jessica Sanmiguel","doi":"10.21931/rb/2024.09.01.4","DOIUrl":"https://doi.org/10.21931/rb/2024.09.01.4","url":null,"abstract":"Yellow pitahaya in the Ecuadorian Amazon has become one of the most important economic crops in the region. However, the presence of pests (nematodes) in the soil has caused up to 100% of the crop's growth stages to be affected. Faced with this problem, growers use various chemical nematicides that minimize this impact but cause contamination problems. For this reason, the objective of the research was to evaluate microorganisms that control or reduce the population of Meloidogyne incognita in the pitahaya crop at the greenhouse level. The design was DBCA, and the statistical analysis was performed with the statistical package Infostat 2017, using linear mixed models and Fisher's tests at 5%. The results show that root nodules decrease when P. lilacinum + T. asperellum is applied after nematode injection (261). In addition, the lowest number of nodulations (251) was obtained when microorganisms were applied after nematode inoculation (251 nodulations). Still, when microorganisms were used before, aerial biomass growth was stimulated (384.17 g) even when nematodes were present in the root system.\u0000 \u0000Keywords: microorganisms; nematodes; pitahaya.","PeriodicalId":505112,"journal":{"name":"Bionatura","volume":"3 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140239268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estrategia de intervención educativa para el abordaje del riesgo cardiovascular en pacientes con hipertensión arterial 应对高血压患者心血管风险的教育干预策略

Bionatura Pub Date : 2024-03-15 DOI: 10.21931/rb/2024.09.01.68

Karen Rojas-Montenegro, Gustavo Cisneros-Cañas, Rosario Suárez de Terán, Ruben Cajilima-Vega, Cecilia Arteaga-Pazmiño, Evelyn Frías-Toral

{"title":"Estrategia de intervención educativa para el abordaje del riesgo cardiovascular en pacientes con hipertensión arterial","authors":"Karen Rojas-Montenegro, Gustavo Cisneros-Cañas, Rosario Suárez de Terán, Ruben Cajilima-Vega, Cecilia Arteaga-Pazmiño, Evelyn Frías-Toral","doi":"10.21931/rb/2024.09.01.68","DOIUrl":"https://doi.org/10.21931/rb/2024.09.01.68","url":null,"abstract":"Introducción: Las enfermedades cardiovasculares (ECV) son la principal causa de muerte prevenible a nivel mundial y nacional. Frente a esta problemática, las estrategias educativas son esenciales en la prevención y manejo de las ECV. Objetivo: El objetivo de este estudio fue desarrollar una estrategia de intervención educativa para abordar el riesgo cardiovascular (RCV) en pacientes con hipertensión arterial (HTA). Métodos: Se realizó un estudio cuasi-experimental, en el que se determinó el RCV y hábitos de vida a través de la Escala Globorisk y FANTASTIC, respectivamente, previo a la intervención educativa y posterior a ésta, en una población de 97 pacientes de 40 a 79 años de edad con HTA primaria en el periodo de marzo a agosto del 2021. La intervención consistió en estrategias educativas para promover hábitos de vida saludables, y la prescripción de un plan de alimentación individualizado de acuerdo a las necesidades de los participantes. Resultados: Posterior a la intervención se obtuvo un control de la tensión arterial en el 28.86% de la población de estudio, el índice de masa corporal disminuyo en el 3.1%, el RCV disminuyó en un 11.34%, y los estilos de vida saludables mejoraron en un 9.15% (p=0.000) en todas las variables. Conclusiones: En los pacientes con HTA, las intervenciones educativas para promover estilos de vida saludables, mejoran los factores de RCV.\u0000Keywords: Hipertensión arterial; Riesgo cardiovascular; Estilos de vida saludables, Atención primaria en salud.","PeriodicalId":505112,"journal":{"name":"Bionatura","volume":"23 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140240386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of a natural colorant powder from Syzygium Cumini L. (Skeels) on sensory and physicochemical properties during storage of a heat-treated flavored fermented milk 茜草（Syzygium Cumini L. (Skeels)）天然着色剂粉末对热处理风味发酵乳储存期间感官和理化特性的影响

Bionatura Pub Date : 2024-03-15 DOI: 10.21931/rb/2024.09.01.59

Fabián M. Gaibor, Daliannis Rodríguez, Mario A. García, Alicia Casariego

{"title":"Influence of a natural colorant powder from Syzygium Cumini L. (Skeels) on sensory and physicochemical properties during storage of a heat-treated flavored fermented milk","authors":"Fabián M. Gaibor, Daliannis Rodríguez, Mario A. García, Alicia Casariego","doi":"10.21931/rb/2024.09.01.59","DOIUrl":"https://doi.org/10.21931/rb/2024.09.01.59","url":null,"abstract":"This study aimed to evaluate the influence of a powder colorant obtained from a hydroalcoholic extract of\u0000jambolan (Syzygium cumini) on the chemical, microbiological, and sensory characteristics of heat-treated flavored fermented milk. The extraction of anthocyanins from the pulp was carried out by maceration with 90%\u0000(v/v) ethanol acidified with citric acid. This extract was concentrated (14 to 15% w/v of total solids). Maltodextrin DE 12 was added to obtain 25% (w/v) total solids. Guar gum (0.06% w/w) was added as a stabilizer\u0000to whole milk reconstituted with sterilized distilled water (11% w/v total solids). The colorant powder was\u0000homogenized at a rate of 1.5 and 2 g per 100 mL of powdered whole milk dissolved in the corresponding\u0000amount of water, and sucrose and concentrated strawberry flavoring were added. The natural colorant addition\u0000allowed us to obtain a product with pH (4.23-4.75), titratable acidity (1.28-1.47% w/w lactic acid), and color\u0000stability, similar to those of yogurt with synthetic colorants. No microbial growth or color changes were detected. The judges did not notice any strange odor, taste, or color. Natural colorants can be a beneficial option\u0000for developing healthy and sustainable foods.\u0000Keywords: Syzygium cumini; anthocyanins; spray-dried; natural colorant; heat-treated fermented milk.","PeriodicalId":505112,"journal":{"name":"Bionatura","volume":"19 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140239190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diseño de un sistema de agitación para un biorreactor de 1m3 de capacidad para la producción de ácido glicérico a partir de glicerol por fermentación microbiana de Acetobacter tropicalis 为热带醋酸杆菌微生物发酵甘油生产甘油酸的 1m3 容积生物反应器设计搅拌系统。

Bionatura Pub Date : 2024-03-15 DOI: 10.21931/rb/2024.09.01.42

Daniel Cabrera-Valle, Henry Pérez

{"title":"Diseño de un sistema de agitación para un biorreactor de 1m3 de capacidad para la producción de ácido glicérico a partir de glicerol por fermentación microbiana de Acetobacter tropicalis","authors":"Daniel Cabrera-Valle, Henry Pérez","doi":"10.21931/rb/2024.09.01.42","DOIUrl":"https://doi.org/10.21931/rb/2024.09.01.42","url":null,"abstract":"This work presents the design of an agitation system for a 1m3 capacity bioreactor intended to produce glyceric acid (GA) through microbial fermentation of A. tropicalis using 20% v/v glycerol as the primary substrate. Building on previous studies that evaluated ideal conditions for glyceric acid production, initial data were utilized to identify the impeller type and perform subsequent calculations, including impeller Reynolds number, power consumption, and mixing time. Once the agitator type was specified, standard geometric relationships were employed to size components of the agitation system, such as tank size, baffle plates, and agitator dimensions. Power consumption calculations were compared with results from other studies on fermentation media with similar rheological characteristics. The agitator's power consumption for mixing 1m3 of medium was determined to be 8.35 kW, achieving 95% homogenization in 5.14 seconds, with a mixing time error of approximately 10%, operating at an agitation speed of 500 rpm.\u0000 \u0000Keywords: agitation system; glyceryc acid; bioreactor","PeriodicalId":505112,"journal":{"name":"Bionatura","volume":"13 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140239354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fighting moniliasis in Orellana with sensors and PWA for sustainable agriculture 利用传感器和 PWA 在奥雷亚纳防治单丝虫病，促进可持续农业发展

Bionatura Pub Date : 2024-03-15 DOI: 10.21931/rb/2024.09.01.5

Jessica Urquizo, Mirtha Jiménez, Pedro Aguilar, Wilson Chango

{"title":"Fighting moniliasis in Orellana with sensors and PWA for sustainable agriculture","authors":"Jessica Urquizo, Mirtha Jiménez, Pedro Aguilar, Wilson Chango","doi":"10.21931/rb/2024.09.01.5","DOIUrl":"https://doi.org/10.21931/rb/2024.09.01.5","url":null,"abstract":"The primary objective of this research was to enhance cocoa production and quality in tropical countries, such as Latin America and Africa, where cocoa cultivation plays a pivotal role in the economy of rural communities. The primary challenge addressed in this study was moniliasis, a fungal disease that affects cocoa fruits and leads to a significant decline in crop production and quality. A multidisciplinary approach was employed to tackle this issue, combining sensors, MongoDB Compass databases, Progressive Web Applications (PWAs), and predictive models.\u0000 \u0000A research methodology incorporating predictive analysis techniques, particularly the logistic regression method, was utilized to achieve early detection and efficient management of moniliasis. Data collection instruments included sensors monitoring vital environmental factors like humidity and temperature alongside MongoDB Compass databases for storing and managing the gathered data. Furthermore, a PWA was developed for real-time data collection and analysis.\u0000 \u0000The results of implementing this sensor-based tool in cocoa cultivation were highly effective. Early detection of moniliasis allowed for more precise preventive and corrective measures, resulting in a significant improvement in cocoa production and quality. These results were substantiated with concrete data demonstrating the tool's efficacy.\u0000 \u0000 \u0000 \u0000Keywords. Data Prediction: Models and Applications; Efficient MongoDB Database Management; High-Quality Cocoa; Moniliasis: Treatment and Prevention; Progressive Web Apps (PWA): User Experience.","PeriodicalId":505112,"journal":{"name":"Bionatura","volume":"53 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140237293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Detection of arsenic and lead ions in water through validation of the electrothermal atomic absorption method 通过验证电热原子吸收法检测水中的砷和铅离子

Bionatura Pub Date : 2024-03-15 DOI: 10.21931/rb/2024.09.01.8

Tannia Vargas-Tierras, V. Morales-León, Sharon Andi-Barrera, Rubén Toapanta-Topón, María Morales-León, Lissette Segovia-Tello, Viviana Lara-Villegas

{"title":"Detection of arsenic and lead ions in water through validation of the electrothermal atomic absorption method","authors":"Tannia Vargas-Tierras, V. Morales-León, Sharon Andi-Barrera, Rubén Toapanta-Topón, María Morales-León, Lissette Segovia-Tello, Viviana Lara-Villegas","doi":"10.21931/rb/2024.09.01.8","DOIUrl":"https://doi.org/10.21931/rb/2024.09.01.8","url":null,"abstract":"The validation of the electrothermal spectrometry method for Arsenic and lead determination in water samples guarantees the quality of analytical data. The study was carried out at AQLAB. A theoretical and technical investigation was applied to ensure the reliability and accuracy of the analytical method. Parameters such as INEN standards, Eurachem international standards, AQLAB internal documents and environmental standards were used to validate the process. Several readings were performed on different samples to make calibration curves for As and Pb, evaluate the method's linearity, and obtain information on the slope, intercept and determination coefficient. Statistical calculations were used to determine the limit of detection and quantification, repeatability, reproducibility, trueness and uncertainty. The results show that the hypotheses were fulfilled, calibration curves with determination coefficient higher than 0.995, repeatability standard deviation lower than 16%, calculated F < critical F (4.96), calculated t student < theoretical (2.23), trueness was between 100.29-110.18 and 99.64-107.92%, uncertainty was 20% range 0.005 to 0.10 mg/L and 15% range 0.01-0.20mg/L, limit of detection was 0.001 and 0.005 mg/L and limit of quantification was 0.01 and 0.02mg/L, respectively. Therefore, the validation method was robust and accurate.\u0000 \u0000Keywords: water samples, analytical data, reliable results, Arsenic, Lead, validation.","PeriodicalId":505112,"journal":{"name":"Bionatura","volume":"110 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140237777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Valoración de los servicios ecosistémicos del bosque primario de la comunidad Waorani Nampaweno, Orellana, Ecuador. 厄瓜多尔奥雷亚纳 Waorani Nampaweno 社区原始森林生态系统服务估值。

Bionatura Pub Date : 2024-03-15 DOI: 10.21931/rb/2024.09.01.17

J. Larrea, J. Rentería

{"title":"Valoración de los servicios ecosistémicos del bosque primario de la comunidad Waorani Nampaweno, Orellana, Ecuador.","authors":"J. Larrea, J. Rentería","doi":"10.21931/rb/2024.09.01.17","DOIUrl":"https://doi.org/10.21931/rb/2024.09.01.17","url":null,"abstract":"The Yasuní National Park is the largest protected area in Ecuador; it houses excellent biodiversity of the Amazonian tropical humid forest; it is the home of the Waoranis, an indigenous people in voluntary isolation PIAV, who depend on the resources that the forest has, in this context, this article deals with the assessment of the ecosystem services provided by the tropical humid forest of the Ecuadorian Amazon, the main objective being to determine which of these services is the most important, in addition to showing the ancestral cultural manifestations of this ethnic group; therefore The ecosystem services of the Waorani Nampaweno community, located in the Dayuma parish, Orellana province, were analyzed. In the methodology used, interviews were carried out with the two elders of the community and the inventory sheets of the National Institute of Cultural Heritage INPC, later when applying the Likert scale, the results showed that the cultural ecosystem services obtained 34 points, the highest score, Cronbach's alpha of 0.87 validates the reliability of the research, with the food supply service being the one that allows survival, however, cultural services make visible the vast knowledge and ancestral wisdom that they have treasured. It is transmitted orally by the \"pikenanis\" (elders) throughout the generations. The highlights of the cards were preparation for the hunt, respect for animals such as eagle and tiger, and the use of annatto as facial ink. Hunting and abundant food are celebrated through dances. The crafts and clothing are made from fibers and seeds from the forest; however, threats such as the invasion of their territory due to colonization and oil exploitation are acculturating young people, ending their way of life, identity and loss. of its ancestral cultural wealth. The Waoranis are the forest's protectors, and their right to their way of life linked to the Amazon rainforest must be strengthened.\u0000 \u0000Keywords: Ecosystemic Services, waorani culture, Amazonian tropical forest, plants from Yasuní Park.","PeriodicalId":505112,"journal":{"name":"Bionatura","volume":"94 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140237804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Description of the primary Loreto-coca river contamination through the measurement of physicochemical parameters 通过测量物理化学参数描述洛雷托-可卡河的主要污染情况

Bionatura Pub Date : 2024-03-15 DOI: 10.21931/rb/2024.09.01.7

Jose Allauca P, Carlos Lopez P, Jennyfer Daza, Joyce Chamba

{"title":"Description of the primary Loreto-coca river contamination through the measurement of physicochemical parameters","authors":"Jose Allauca P, Carlos Lopez P, Jennyfer Daza, Joyce Chamba","doi":"10.21931/rb/2024.09.01.7","DOIUrl":"https://doi.org/10.21931/rb/2024.09.01.7","url":null,"abstract":"The main objective of this article is to describe the pollution in the main Loreto-Coca rivers using physicochemical parameters. Our analysis is focused on the Orellana province and examines the Suno, Napo, Coca, and Payamino rivers, which are adversely impacted by oil and mining activities. These activities result in toxic and chemical residues, such as heavy metals and other contaminants. Samples were collected following the INEN 2176 standard to do this. We could evaluate parameters such as pH, dissolved oxygen, conductivity, turbidity, nutrients (nitrates, phosphates), heavy metals, and COD using laboratory equipment and specific techniques and methods. The level of pollution was determined by comparing these results with permissible limits. Therefore, based on the comparative results obtained, environmental education is crucial for raising awareness about the importance of protecting and conserving water as a vital resource. Conducting these studies provides essential information for taking preventive and corrective measures and monitoring and addressing identified issues to safeguard public health and the environment.\u0000Keywords: pollution, water, rivers, sample, standard, physicochemical parameters.","PeriodicalId":505112,"journal":{"name":"Bionatura","volume":"126 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140237821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Taxonomic interpretation of non-heterocystous Cyanobacteria (Oscillatoriales) from eastern India with particular emphasis on Lyngbya Plectonema complex 印度东部非隔膜蓝藻（振荡型）的分类解释，特别强调Lyngbya Plectonema复合体

Bionatura Pub Date : 2024-03-15 DOI: 10.21931/rb/2024.09.01.66

S. Banerjee, Akanksha Singh, Ruma Pal

{"title":"Taxonomic interpretation of non-heterocystous Cyanobacteria (Oscillatoriales) from eastern India with particular emphasis on Lyngbya Plectonema complex","authors":"S. Banerjee, Akanksha Singh, Ruma Pal","doi":"10.21931/rb/2024.09.01.66","DOIUrl":"https://doi.org/10.21931/rb/2024.09.01.66","url":null,"abstract":"Filamentous non-heterocystous cyanobacterial taxa from 8 genera were collected from different ecological niches like high altitudes, plains and estuaries of eastern India. The systematic accounts of 23 taxa were investigated with a polyphasic approach considering morpho taxonomy, cultural behavior, and molecular phylogenetic analysis with 16S and 16S-23S Internal Transcribed Spacer (ITS) regions as molecular markers. The collected taxa were from the families Oscillatoriaceae, Phormidiaceae and Pseudanabaenaceae with 8 representative genera viz. Lyngbya, Plectonema, Oscillatoria, Limnothrix, Leptolyngbya, Planktothrix, Desertifilum and Phormidium. The 16S-23S ITS region-based molecular characterization of 13 species from Oscillatoriaceae, 6 species from Phormidiaceae, and 4 species from Pseudanabaenaceae were found to be congruent with earlier phylogenetic studies using other markers. Phylogenetic tree analysis revealed habitat-specific clustering of ITS sequences of the investigated taxa. The 16S molecular marker-based phylogenetic analysis, along with cultural studies of the Lyngbya-Plectonema clade, highlighted the need for morphotaxonomic reconsideration of Lyngbya birgei and Plectonema tomasinianum related to the formation of false branching. The present study affirmed that 98% sequence similarity in the ITS region can be considered as a threshold percentage for conspecificity determination in the Lyngbya genus.\u0000 \u0000 \u0000Keywords: Cyanobacteria; ITS; Oscillatoriaceae; Phormidiaceae; Phylogenetic tree; Pseudanabaenaceae.","PeriodicalId":505112,"journal":{"name":"Bionatura","volume":"23 67","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140240066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Detection of SARS-CoV-2 variants distributed from March 2020 to May 2022 and their effect on the infection severity in Iraqi population 检测 2020 年 3 月至 2022 年 5 月期间分布的 SARS-CoV-2 变体及其对伊拉克人口感染严重程度的影响

Bionatura Pub Date : 2024-03-15 DOI: 10.21931/rb/2024.09.01.41

J. Ghazzi, H. Fadhil, Thaer A. Abdul Hussein, Zeyad Jabbar

{"title":"Detection of SARS-CoV-2 variants distributed from March 2020 to May 2022 and their effect on the infection severity in Iraqi population","authors":"J. Ghazzi, H. Fadhil, Thaer A. Abdul Hussein, Zeyad Jabbar","doi":"10.21931/rb/2024.09.01.41","DOIUrl":"https://doi.org/10.21931/rb/2024.09.01.41","url":null,"abstract":"New SARS-CoV-2 variants appeared in late December 2020 as Mutations accumulated in the original virus. This study aimed to provide a local database about variants of COVID-19 circulating in the Iraqi population from 2020 to 2022 and the time of emergence of new strains each month since very few local studies have documented its existence in the country. Real-time reverse transcriptase polymerase chain reaction (rRT-PCR) assays were employed to 319 collected and analyzed nasal swabs to determine whether an infection had occurred. A sophisticated diagnostic kit that sorted the distinctive mutations was implemented to evaluate the variants. Results showed Younger patients were more likely to be infected with the Alpha variant (66 patients) than older people (43 patients).\u0000 \u0000Additionally, patients with wild-type infestations had more robust viral load and lower Ct threshold values, culminating in an increase in severity during infection with wild-type virus 26/32 (81.250). Meanwhile, 65/109(59.63%) of patients infected with the Alpha variant developed severe and critical illness and 51/84(60.71%)were infected with Delta or Delta plus variants. In conclusion, the Alpha variant had the highest infection percentage of 109(46.6%), followed by Delta or Delta plus variant 84(26.33%), Beta or Gamma variants 47(20.1%), Omicron variant 46(19.6%), and finally wild-type virus of 32(13.7%). February 2020 witnessed a preliminary finding of the wild-type, while the Alpha variant emerged in December 2020, Beta/Gamma variances were recognized in December 2020, Delta/Delta plus variances began in April 2021, and the Omicron variant debuted in March 2022.\u0000 \u0000Keywords: SARS-CoV-2, Mutation, rRT-PCR, Coronavirus disease 2019, TaqPath, cycle threshold (Ct) value","PeriodicalId":505112,"journal":{"name":"Bionatura","volume":"120 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140238059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0