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1.
Environ Sci Pollut Res Int ; 30(12): 32751-32761, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36469267

RESUMO

The presented work analyzes the energy prices, climate shock, and health deprivation nexus in the BRICS economies for the period 1995-2020. Panel ARDL-PMG technique is used to reveal the underexplored linkages. The long-run estimates of energy prices are observed to be negatively significant to the health expenditure and life expectancy model, whereas, positively significant to the climate change model. These findings suggest that energy prices significantly reduce health expenditures and life expectancy and, thus, increase the death rate in the BRICS economies. The long-run country-wise estimate of energy prices is found negatively significant in case of Brazil, India, China, and South Africa. Alongside, the group-wise significance of CO2 emissions is discovered to be negatively, positively, and insignificant in the cases of life expectancy, death rate, and health expenditure models, respectively. Besides, country-wise long-run estimate of CO2 emissions witnesses negative significance for Russia, India, China, and South Africa.


Assuntos
Dióxido de Carbono , Desenvolvimento Econômico , Humanos , Dióxido de Carbono/análise , China , Índia , Brasil , Federação Russa , África do Sul
2.
Nanomaterials (Basel) ; 12(24)2022 Dec 09.
Artigo em Inglês | MEDLINE | ID: mdl-36558257

RESUMO

The internet of medical things (IoMT) is used for the acquisition, processing, transmission, and storage of medical data of patients. The medical information of each patient can be monitored by hospitals, family members, or medical centers, providing real-time data on the health condition of patients. However, the IoMT requires monitoring healthcare devices with features such as being lightweight, having a long lifetime, wearability, flexibility, safe behavior, and a stable electrical performance. For the continuous monitoring of the medical signals of patients, these devices need energy sources with a long lifetime and stable response. For this challenge, conventional batteries have disadvantages due to their limited-service time, considerable weight, and toxic materials. A replacement alternative to conventional batteries can be achieved for piezoelectric and triboelectric nanogenerators. These nanogenerators can convert green energy from various environmental sources (e.g., biomechanical energy, wind, and mechanical vibrations) into electrical energy. Generally, these nanogenerators have simple transduction mechanisms, uncomplicated manufacturing processes, are lightweight, have a long lifetime, and provide high output electrical performance. Thus, the piezoelectric and triboelectric nanogenerators could power future medical devices that monitor and process vital signs of patients. Herein, we review the working principle, materials, fabrication processes, and signal processing components of piezoelectric and triboelectric nanogenerators with potential medical applications. In addition, we discuss the main components and output electrical performance of various nanogenerators applied to the medical sector. Finally, the challenges and perspectives of the design, materials and fabrication process, signal processing, and reliability of nanogenerators are included.

3.
Int. arch. otorhinolaryngol. (Impr.) ; 26(2): 219-225, Apr.-June 2022. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1385096

RESUMO

Abstract Introduction Total thyroidectomy remains highly technical, with a significant risk of recurrent laryngeal nerve (RLN) compromise and hypoparathyroidism. After identifying RLN, at the level of the ligament of Berry, local factors may compel the surgeon to either dissect along the nerve or the thyroid capsule. Objective The objective of the present study is to compare these two approaches in terms of outcomes and complication rates. Methods This is a retrospective analysis from September, 2013 to April 2019 of 511 consecutive patients undergoing thyroidectomy. General demographics and disease parameters were recorded. At the discretion of the surgeon and according to the demands of the local operative factors, the patients either had dissection along the RLN or along the thyroid capsule. Perioperative and postoperative parameters such as blood loss, duration of surgery, hospital stay, pain scores, analgesia requirements and complications were recorded. The groups were compared with the Pearson chi-squared test or with the Fisher exact test. A p-value < 0.05 was considered statistically significant. Results The incidence of transient hypocalcaemia and transient RLN compromise were higher when dissection was performed along the nerve as opposed to the plane along the thyroid capsule. Other parameters including operative time, hospital stay, pain scores, analgesia requirement, wound infection, seroma, hemorrhage, and recurrence did not differ between the groups. Subgroup analysis of the patients who presented with complications showed that local factors, malignancy, and extent of surgery correlated positively with complications when dissected along the RLN. Conclusion Dissection along the capsule of the thyroid during thyroidectomy is a safer plane in terms of low rate of transient RLN injury and hypoparathyroidism as opposed to dissection along the nerve.

4.
Int Arch Otorhinolaryngol ; 26(2): e219-e225, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35602276

RESUMO

Introduction Total thyroidectomy remains highly technical, with a significant risk of recurrent laryngeal nerve (RLN) compromise and hypoparathyroidism. After identifying RLN, at the level of the ligament of Berry, local factors may compel the surgeon to either dissect along the nerve or the thyroid capsule. Objective The objective of the present study is to compare these two approaches in terms of outcomes and complication rates. Methods This is a retrospective analysis from September, 2013 to April 2019 of 511 consecutive patients undergoing thyroidectomy. General demographics and disease parameters were recorded. At the discretion of the surgeon and according to the demands of the local operative factors, the patients either had dissection along the RLN or along the thyroid capsule. Perioperative and postoperative parameters such as blood loss, duration of surgery, hospital stay, pain scores, analgesia requirements and complications were recorded. The groups were compared with the Pearson chi-squared test or with the Fisher exact test. A p-value < 0.05 was considered statistically significant. Results The incidence of transient hypocalcaemia and transient RLN compromise were higher when dissection was performed along the nerve as opposed to the plane along the thyroid capsule. Other parameters including operative time, hospital stay, pain scores, analgesia requirement, wound infection, seroma, hemorrhage, and recurrence did not differ between the groups. Subgroup analysis of the patients who presented with complications showed that local factors, malignancy, and extent of surgery correlated positively with complications when dissected along the RLN. Conclusion Dissection along the capsule of the thyroid during thyroidectomy is a safer plane in terms of low rate of transient RLN injury and hypoparathyroidism as opposed to dissection along the nerve.

5.
Arq. bras. med. vet. zootec. (Online) ; 72(3): 915-920, May-June, 2020. tab, graf
Artigo em Inglês | VETINDEX | ID: vti-29822

RESUMO

Nabumetone is used to reduce the pain and inflammation in rheumatoid arthritis. In the current study, immunomodulatory effect of Nabumetone is investigated in mice. The control group was administered normal saline orally as placebo. Nabumetone was administered orally via gavage in two treatment groups at 14mg/kg.b.w. doses and 28mg/kgb.w., respectively. Haemagglutination (HA) assay, Jerne hemolytic plaque and mice lethality assays were applied. In HA assay, the titer was significantly decreased in Nabumetone treatment groups (P< 0.001). In Jerne hemolytic plaque formation assay, there was a significant reduction (P< 0.001) in number of plaques in Nabumetone treated groups when compared with control. In mice lethality assay, there was a significant difference in mortality ratio of mice in control and Nabumetone treated groups (P< 0.001). Therefore, it is concluded that Nabumetone suppresses the humoral immune response in mice.(AU)


A nabumetona é usada na redução da dor e inflamação da artrite reumática. No presente estudo, o efeito imunomodulador é investigado em camundongos. O grupo de controle recebeu solução salina via oral como placebo. Nabumetona foi administrada oralmente via gavagem em dois grupos de tratamentos com doses de 14mg/kg.b.w. e 28mg/kgb.w., respectivamente. Foram realizados ensaios de hemaglutinação (HA), placa hemolítica de Jerne e letalidade dos camundongos. No ensaio HA, o grau foi significativamente menor nos grupos de tratamento com nabumetoma (P< 0.001). No ensaio de formação de placa hemolítica de Jerne houve redução significativa (P< 0.001) no número de placas em grupos tratados com nabumetoma comparado ao controle. No ensaio de letalidade dos camundongos houve diferença significativa no grau de mortalidade de camundongos no grupo de controle e grupos tratados com nabumetoma (P< 0.001). Portanto, conclui-se que a Nabumetoma suprime a resposta imune humoral em camundongos.(AU)


Assuntos
Animais , Camundongos , Imunidade Humoral/efeitos dos fármacos , Nabumetona/administração & dosagem , Fatores Imunológicos/análise , Artrite Reumatoide/veterinária , Solução Salina , Hemaglutinação
6.
Arq. bras. med. vet. zootec. (Online) ; 72(3): 915-920, May-June, 2020. tab, graf
Artigo em Inglês | LILACS, VETINDEX | ID: biblio-1129595

RESUMO

Nabumetone is used to reduce the pain and inflammation in rheumatoid arthritis. In the current study, immunomodulatory effect of Nabumetone is investigated in mice. The control group was administered normal saline orally as placebo. Nabumetone was administered orally via gavage in two treatment groups at 14mg/kg.b.w. doses and 28mg/kgb.w., respectively. Haemagglutination (HA) assay, Jerne hemolytic plaque and mice lethality assays were applied. In HA assay, the titer was significantly decreased in Nabumetone treatment groups (P< 0.001). In Jerne hemolytic plaque formation assay, there was a significant reduction (P< 0.001) in number of plaques in Nabumetone treated groups when compared with control. In mice lethality assay, there was a significant difference in mortality ratio of mice in control and Nabumetone treated groups (P< 0.001). Therefore, it is concluded that Nabumetone suppresses the humoral immune response in mice.(AU)


A nabumetona é usada na redução da dor e inflamação da artrite reumática. No presente estudo, o efeito imunomodulador é investigado em camundongos. O grupo de controle recebeu solução salina via oral como placebo. Nabumetona foi administrada oralmente via gavagem em dois grupos de tratamentos com doses de 14mg/kg.b.w. e 28mg/kgb.w., respectivamente. Foram realizados ensaios de hemaglutinação (HA), placa hemolítica de Jerne e letalidade dos camundongos. No ensaio HA, o grau foi significativamente menor nos grupos de tratamento com nabumetoma (P< 0.001). No ensaio de formação de placa hemolítica de Jerne houve redução significativa (P< 0.001) no número de placas em grupos tratados com nabumetoma comparado ao controle. No ensaio de letalidade dos camundongos houve diferença significativa no grau de mortalidade de camundongos no grupo de controle e grupos tratados com nabumetoma (P< 0.001). Portanto, conclui-se que a Nabumetoma suprime a resposta imune humoral em camundongos.(AU)


Assuntos
Animais , Camundongos , Imunidade Humoral/efeitos dos fármacos , Nabumetona/administração & dosagem , Fatores Imunológicos/análise , Artrite Reumatoide/veterinária , Solução Salina , Hemaglutinação
7.
PeerJ ; 8: e8359, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31976180

RESUMO

Sugarcane Bacilliform Guadeloupe A Virus (SCBGAV, genus Badnavirus, family Caulimoviridae) is an emerging, deleterious pathogen of sugarcane which presents a substantial barrier to producing high sugarcane earnings. Sugarcane bacilliform viruses (SCBVs) are one of the main species that infect sugarcane. During the last 30 years, significant genetic changes in SCBV strains have been observed with a high risk of disease incidence associated with crop damage. SCBV infection may lead to significant losses in biomass production in susceptible sugarcane cultivars. The circular, double-stranded (ds) DNA genome of SCBGAV (7.4 Kb) is composed of three open reading frames (ORFs) on the positive strand that replicate by a reverse transcriptase. SCBGAV can infect sugarcane in a semipersistent manner via the insect vectors sugarcane mealybug species. In the current study, we used miRNA target prediction algorithms to identify and comprehensively analyze the genome-wide sugarcane (Saccharum officinarum L.)-encoded microRNA (miRNA) targets against the SCBGAV. Mature miRNA target sequences were retrieved from the miRBase (miRNA database) and were further analyzed for hybridization to the SCBGAV genome. Multiple computational approaches-including miRNA-target seed pairing, multiple target positions, minimum free energy, target site accessibility, maximum complementarity, pattern recognition and minimum folding energy for attachments-were considered by all algorithms. Among them, sof-miR396 was identified as the top effective candidate, capable of targeting the vital ORF3 of the SCBGAV genome. miRanda, RNA22 and RNAhybrid algorithms predicted hybridization of sof-miR396 at common locus position 3394. The predicted sugarcane miRNAs against viral mRNA targets possess antiviral activities, leading to translational inhibition by mRNA cleavage. Interaction network of sugarcane-encoded miRNAs with SCBGAV genes, created using Circos, allow analyze new targets. The finding of the present study acts as a first step towards the creation of SCBGAV-resistant sugarcane through the expression of the identified miRNAs.

8.
Semina Ci. agr. ; 41(06,supl. 2): 3053-3066, 2020. graf, tab
Artigo em Inglês | VETINDEX | ID: vti-31661

RESUMO

Under rain-fed conditions, foliar application of nutrients is an efficient tool to eliminate the adverse effects of nutrients shortage and helpful to catch the maximum yield of any crop. Field experiments were executed to evaluate the effect of foliar spray of different strengths and application times of Hoagland's solution on growth and yield characteristics of chickpea (Cicer arietinum L.) under rain-fed conditions. The treatments consisted of distilled water (control), 25, 50, and 75% strength of Hoagland's solutions prayed at 7, 14, and 21 days after crop emergence (DACE) on two chickpea cultivars C-44 and CM-72. In terms of growth and yield, CM-72 showed superiority over C-44. The 75% strength of Hoagland's solution showed an improvement of 32.9, 37.9, 35.3, 13.5, and 35% in dry weight, plant height, 100-seed weight, seed yield, and biological yield, respectively when sprayed at 21 DACE than distilled water. However, the lower strength (25%) of Hoagland's solution produced similar results to distilled water. It is recommended that under rain-fed conditions chickpea cultivar CM-72 should be cultivated with a foliar supply of 75% strength of Hoagland's solution at 21 DACE to obtain the maximum growth and yield.(AU)


Sob condições de chuva, a aplicação foliar de nutrientes é uma ferramenta eficiente para eliminar os efeitos adversos da falta de nutrientes e útil para obter o rendimento máximo de qualquer cultura. Experimentos de campo foram executados para avaliar o efeito do spray foliar de diferentes forças e tempos de aplicação da solução de de Hoagland sobre as características de crescimento e rendimento do grão de bico (Cicer arietinum L.) e m condições de chuva. Os tratamentos foram constituídos por água destilada (controle), 25, 50 e 75% da solução de Hoagland pulverizada aos 7, 14 e 21 dias apósa emergência da colheita (DACE) em duas cultivares de grão de bico (C-44 e CM-72). Em termos decrescimento e rendimento, o CM-72 mostrou superioridade em relação ao C-44. A aplicação de 75%da solução de de Hoagland mostrou uma melhoria de 32,9, 37,9, 35,3, 13,5 e 35% em peso seco, altura da planta, peso de 100 sementes, rendimento de sementes e rendimento biológico, respectivamente, quando pulverizados a 21 DACE do que a água destilada. No entanto, a menor dose(25%) da solução dede Hoagland produziu resultados semelhantes aos da água destilada. Recomenda-se que, em condições de chuva, a cultivar CM-72 seja cultivada com suprimento foliar de 75% da solução de de Hoagland em21 DACE para obter o máximo crescimento e rendimento.(AU)


Assuntos
Cicer/efeitos dos fármacos , Cicer/crescimento & desenvolvimento , Nutrientes/administração & dosagem
9.
Braz. J. Pharm. Sci. (Online) ; 56: e18092, 2020. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1142491

RESUMO

We synthesized a series of compounds bearing pharmacologically important 1,3,4-oxadiazole and piperidine moieties. Spectral data analysis by 1H-NMR, 13C-NMR, IR and EI-MS was used to elucidate the structures of the synthesized molecules. Docking studies explained the different types of interaction of the compounds with amino acids, while bovine serum albumin (BSA) binding interactions showed their pharmacological effectiveness. Antibacterial screening of these compounds demonstrated moderate to strong activity against Salmonella typhi and Bacillus subtilis but only weak to moderate activity against the other three bacterial strains tested. Seven compounds were the most active members as acetyl cholinesterase inhibitors. All the compounds presented displayed strong inhibitory activity against urease. Compounds 7l, 7m, 7n, 7o, 7p, 7r, 7u, 7v, 7x and 7v were highly active, with respective IC50 values of 2.14±0.003, 0.63±0.001, 2.17±0.006, 1.13±0.003, 1.21±0.005, 6.28±0.003, 2.39±0.005, 2.15±0.002, 2.26±0.003 and 2.14±0.002 µM, compared to thiourea, used as the reference standard (IC50 = 21.25±0.15 µM). These new urease inhibitors could replace existing drugs after their evaluation in comprehensive in vivo studies.


Assuntos
Simulação por Computador/classificação , Salmonella typhi/classificação , Sulfonamidas/efeitos adversos , Tioureia , Bacillus subtilis/classificação , Urease , Soroalbumina Bovina , Preparações Farmacêuticas/administração & dosagem , Inibidores da Colinesterase/farmacologia , Concentração Inibidora 50 , Espectroscopia de Prótons por Ressonância Magnética/métodos , Análise de Dados , Aminoácidos/antagonistas & inibidores
10.
Semina ciênc. agrar ; 41(06,supl. 2): 3053-3066, 2020. graf, tab
Artigo em Inglês | VETINDEX | ID: biblio-1501667

RESUMO

Under rain-fed conditions, foliar application of nutrients is an efficient tool to eliminate the adverse effects of nutrients shortage and helpful to catch the maximum yield of any crop. Field experiments were executed to evaluate the effect of foliar spray of different strengths and application times of Hoagland's solution on growth and yield characteristics of chickpea (Cicer arietinum L.) under rain-fed conditions. The treatments consisted of distilled water (control), 25, 50, and 75% strength of Hoagland's solutions prayed at 7, 14, and 21 days after crop emergence (DACE) on two chickpea cultivars C-44 and CM-72. In terms of growth and yield, CM-72 showed superiority over C-44. The 75% strength of Hoagland's solution showed an improvement of 32.9, 37.9, 35.3, 13.5, and 35% in dry weight, plant height, 100-seed weight, seed yield, and biological yield, respectively when sprayed at 21 DACE than distilled water. However, the lower strength (25%) of Hoagland's solution produced similar results to distilled water. It is recommended that under rain-fed conditions chickpea cultivar CM-72 should be cultivated with a foliar supply of 75% strength of Hoagland's solution at 21 DACE to obtain the maximum growth and yield.


Sob condições de chuva, a aplicação foliar de nutrientes é uma ferramenta eficiente para eliminar os efeitos adversos da falta de nutrientes e útil para obter o rendimento máximo de qualquer cultura. Experimentos de campo foram executados para avaliar o efeito do spray foliar de diferentes forças e tempos de aplicação da solução de de Hoagland sobre as características de crescimento e rendimento do grão de bico (Cicer arietinum L.) e m condições de chuva. Os tratamentos foram constituídos por água destilada (controle), 25, 50 e 75% da solução de Hoagland pulverizada aos 7, 14 e 21 dias apósa emergência da colheita (DACE) em duas cultivares de grão de bico (C-44 e CM-72). Em termos decrescimento e rendimento, o CM-72 mostrou superioridade em relação ao C-44. A aplicação de 75%da solução de de Hoagland mostrou uma melhoria de 32,9, 37,9, 35,3, 13,5 e 35% em peso seco, altura da planta, peso de 100 sementes, rendimento de sementes e rendimento biológico, respectivamente, quando pulverizados a 21 DACE do que a água destilada. No entanto, a menor dose(25%) da solução dede Hoagland produziu resultados semelhantes aos da água destilada. Recomenda-se que, em condições de chuva, a cultivar CM-72 seja cultivada com suprimento foliar de 75% da solução de de Hoagland em21 DACE para obter o máximo crescimento e rendimento.


Assuntos
Cicer/crescimento & desenvolvimento , Cicer/efeitos dos fármacos , Nutrientes/administração & dosagem
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