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1.
Eur J Drug Metab Pharmacokinet ; 49(3): 249-262, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38457092

RESUMO

BACKGROUND AND OBJECTIVE: Pharmacokinetic studies encompass the examination of the absorption, distribution, metabolism, and excretion of bioactive compounds. The pharmacokinetics of drugs exert a substantial influence on their efficacy and safety. Consequently, the investigation of pharmacokinetics holds great importance. However, laboratory-based assessment necessitates the use of numerous animals, various materials, and significant time. To mitigate these challenges, alternative methods such as artificial intelligence have emerged as a promising approach. This systematic review aims to review existing studies, focusing on the application of artificial intelligence tools in predicting the pharmacokinetics of drugs. METHODS: A pre-prepared search strategy based on related keywords was used to search different databases (PubMed, Scopus, Web of Science). The process involved combining articles, eliminating duplicates, and screening articles based on their titles, abstracts, and full text. Articles were selected based on inclusion and exclusion criteria. Then, the quality of the included articles was assessed using an appraisal tool. RESULTS: Ultimately, 23 relevant articles were included in this study. The clearance parameter received the highest level of investigation, followed by the  area under the concentration-time curve (AUC) parameter, in pharmacokinetic studies. Among the various models employed in the articles, Random Forest and eXtreme Gradient Boosting (XGBoost) emerged as the most commonly utilized ones. Generalized Linear Models and Elastic Nets (GLMnet) and Random Forest models showed the most performance in predicting clearance. CONCLUSION: Overall, artificial intelligence tools offer a robust, rapid, and precise means of predicting various pharmacokinetic parameters based on a dataset containing information of patients or drugs.


Assuntos
Inteligência Artificial , Farmacocinética , Humanos , Preparações Farmacêuticas/metabolismo , Animais , Modelos Biológicos , Área Sob a Curva
2.
Inflammopharmacology ; 32(1): 101-125, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38062178

RESUMO

The management of acute and chronic wounds resulting from diverse injuries poses a significant challenge to clinical practices and healthcare providers. Wound healing is a complex biological process driven by a natural physiological response. This process involves four distinct phases, namely hemostasis, inflammation, proliferation, and remodeling. Despite numerous investigations on wound healing and wound dressing materials, complications still persist, necessitating more efficacious therapies. Wound-healing materials can be categorized into natural and synthetic groups. The current study aims to provide a comprehensive review of highly active natural animal and herbal agents as wound-healing promoters. To this end, we present an overview of in vitro, in vivo, and clinical studies that led to the discovery of potential therapeutic agents for wound healing. We further elucidated the effects of natural materials on various pharmacological pathways of wound healing. The results of previous investigations suggest that natural agents hold great promise as viable and accessible products for the treatment of diverse wound types.


Assuntos
Inflamação , Cicatrização , Animais
3.
Toxicology ; 501: 153697, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-38056590

RESUMO

Nanoparticle toxicity analysis is critical for evaluating the safety of nanomaterials due to their potential harm to the biological system. However, traditional experimental methods for evaluating nanoparticle toxicity are expensive and time-consuming. As an alternative approach, machine learning offers a solution for predicting cellular responses to nanoparticles. This study focuses on developing ML models for nanoparticle toxicity prediction. The training dataset used for building these models includes the physicochemical properties of nanoparticles, exposure conditions, and cellular responses of different cell lines. The impact of each parameter on cell death was assessed using the Gini index. Five classifiers, namely Decision Tree, Random Forest, Support Vector Machine, Naïve Bayes, and Artificial Neural Network, were employed to predict toxicity. The models' performance was compared based on accuracy, sensitivity, specificity, area under the curve, F measure, K-fold validation, and classification error. The Gini index indicated that cell line, exposure dose, and tissue are the most influential factors in cell death. Among the models tested, Random Forest exhibited the highest performance in the given dataset. Other models demonstrated lower performance compared to Random Forest. Researchers can utilize the Random Forest model to predict nanoparticle toxicity, resulting in cost and time savings for toxicity analysis.


Assuntos
Nanopartículas , Redes Neurais de Computação , Teorema de Bayes , Aprendizado de Máquina , Nanopartículas/toxicidade , Árvores de Decisões , Máquina de Vetores de Suporte
4.
J Caring Sci ; 12(3): 174-180, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38020734

RESUMO

Introduction: To manage the psychological consequences of providing services in the COVID-19 intensive care units (ICUs), it is necessary to identify the experience of nurses from the organizational climate. The current study was conducted to explain the nurses' experience of the organizational climate of the COVID-19 ICUs. Methods: This qualitative study was conducted in three teaching hospitals affiliated to Isfahan University of Medical Sciences. 17 individual and semi-structured interviews with 12 nurses working in three selected COVID-19 centers were included in the data analysis. The participants were selected by purposive sampling and interviewed in one or more sessions at a suitable time and place. Interviews lasted for 45 to 90 minutes and continued with conventional content analysis until data saturation. Data analysis was done using conventional content analysis of Graham and Leideman model. Guba and Lincoln criteria (including validity, transferability, consistency, and reliability) were used to ensure reliability and accuracy. Results: The results of data analysis were classified into 82 primary concept codes and 10 sub-categories in the form of 3 categories: "positive climate of attachment and professional commitment", "emotional resonance in the work environment" and "supportive environment of the organization". Conclusion: This study led to the identification of nurses' experiences of the organizational climate during the COVID-19 which provides appropriate information to nursing managers to create a favorable organizational climate and increase the quality of work-life of nurses.

5.
Cancer Biother Radiopharm ; 38(7): 486-496, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37578479

RESUMO

Background: The Glu-Urea-Lys (EUK) pharmacophore as prostate-specific membrane antigen (PSMA)-targeted ligand was synthesized, radiolabeled with 99mTc-tricarbonyl-imidazole-BPS chelation system, and biological activities were evaluated. The strategy [2 + 1] ligand is applied for tricarbonyl labeling. (5-imidazole-1-yl)pentanoic acid as a monodentate ligand and bathophenanthroline disulfonate (BPS) as a bidentate ligand formed a chelate system with 99mTc-tricarbonyl. EUK-pentanoic acid-imidazole and EUK were evaluated for PSMA active site using AutoDock 4 software. Materials and Methods: EUK-pentanoic acid-imidazole was synthesized in two steps. BPS was radiolabeled with 99mTc-tricarbonyl at 100°C for 30 min. The purified 99mTc(CO)3(H2O)BPS was used to radiolabel EUK-pentanoic acid-imidazole at 100°C, 30 min. Radiochemical purity, Log P, and stability studies were carried out within 24 h. Affinity of 99mTc(CO)3BPS-imidazole-EUK was performed in the saturation binding studies using LNCaP cells at 37°C for 1 h with a range of 0.001-1000 nM radiolabeled compound range. Internalization studies were performed in LNCaP cells with 1000 nM radiolabeled compound incubated for (0-2) h at 37°C. Biodistribution was studied in normal male Balb/c mice. The artificial intelligence predicts the uptake of radiolabeled compound in tumor. Results: The structures of synthesized compounds were confirmed by mass spectroscopy. Radiochemical purity, Log P, and protein binding were ≥95%, -0.2%, and 23%, respectively. The radiolabeled compound was stable in saline and human plasma within 24 h with radiochemical purity ≥90%. There was no release of 99mTc within 4 h in competition with histidine. The affinity was 82 ± 26.38 nM, and the activity increased inside the cells over time. Biodistribution studies showed radioactivity accumulation in kidneys less than 99mTc-HYNIC-PSMA. There was a moderate accumulation of radioactivity in the liver and intestine. Conclusion: Based on the results, 99mTc(CO)3BPS-imidazole-EUK can potentially be used as an imaging agent for studies at prostate bed and distal areas. The chelate system can be potentially labeled with rhenium for imaging studies (fluorescent or scintigraphy) and therapy.


Assuntos
Antígenos de Superfície , Glutamato Carboxipeptidase II , Animais , Humanos , Masculino , Camundongos , Inteligência Artificial , Quelantes/química , Imidazóis , Ligantes , Próstata , Compostos Radiofarmacêuticos , Tecnécio/química , Distribuição Tecidual , Ureia/química , Ureia/farmacologia , Glutamato Carboxipeptidase II/antagonistas & inibidores
6.
Iran J Nurs Midwifery Res ; 28(2): 214-219, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37332374

RESUMO

Background: Nurses are in direct contact with patients with COVID-19 and have faced much tension with the rapid spread of coronavirus. This study aimed to explore the safe coping strategies of nurses when facing the COVID-19 pandemic. Materials and Methods: In this qualitative study, data were collected from September 20 to December 20, 2020, in Isfahan (Iran) through individual semi-structured interviews with 12 nurses working in the five referral centers for patients with COVID-19. Informants were selected via purposeful sampling and interviewed in one or several sessions at the appropriate time and place. The interviews continued until data saturation. All interviews continued until no new data were added to the continuous content analysis. Data analysis was performed using conventional content analysis based on Graneheim and Lundman's approach. We used Guba and Lincoln's criteria (including credibility, transferability, conformability, and dependability) to guarantee trustworthiness and rigor. Results: Safe coping strategies for nurses were discovered in two categories of "wise liberation" and "care," and six subcategories. "Wise liberation" consisted of four subcategories: "living in the moment," "accepting the inner and outer world," "life enrichment," and "building opportunities." "Care" contained two subcategories: "caring for others" and "caring for oneself." Conclusions: Discovering safe coping strategies for nurses could set the stage for special educational-therapeutic interventions so they can better understand their experiences and take advantage of the best coping strategies.

7.
Nanotoxicology ; 17(1): 62-77, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36883698

RESUMO

Nanoparticles have been used extensively in different scientific fields. Due to the possible destructive effects of nanoparticles on the environment or the biological systems, their toxicity evaluation is a crucial phase for studying nanomaterial safety. In the meantime, experimental approaches for toxicity assessment of various nanoparticles are expensive and time-consuming. Thus, an alternative technique, such as artificial intelligence (AI), could be valuable for predicting nanoparticle toxicity. Therefore, in this review, the AI tools were investigated for the toxicity assessment of nanomaterials. To this end, a systematic search was performed on PubMed, Web of Science, and Scopus databases. Articles were included or excluded based on pre-defined inclusion and exclusion criteria, and duplicate studies were excluded. Finally, twenty-six studies were included. The majority of the studies were conducted on metal oxide and metallic nanoparticles. In addition, Random Forest (RF) and Support Vector Machine (SVM) had the most frequency in the included studies. Most of the models demonstrated acceptable performance. Overall, AI could provide a robust, fast, and low-cost tool for the evaluation of nanoparticle toxicity.


Assuntos
Nanopartículas Metálicas , Nanoestruturas , Inteligência Artificial , Nanopartículas Metálicas/toxicidade , Bases de Dados Factuais , Óxidos
8.
Drug Deliv Transl Res ; 13(6): 1546-1583, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-36811810

RESUMO

Providing accurate molecular imaging of the body and biological process is critical for diagnosing disease and personalizing treatment with the minimum side effects. Recently, diagnostic radiopharmaceuticals have gained more attention in precise molecular imaging due to their high sensitivity and appropriate tissue penetration depth. The fate of these radiopharmaceuticals throughout the body can be traced using nuclear imaging systems, including single-photon emission computed tomography (SPECT) and positron emission tomography (PET) modalities. In this regard, nanoparticles are attractive platforms for delivering radionuclides into targets because they can directly interfere with the cell membranes and subcellular organelles. Moreover, applying radiolabeled nanomaterials can decrease their toxicity concerns because radiopharmaceuticals are usually administrated at low doses. Therefore, incorporating gamma-emitting radionuclides into nanomaterials can provide imaging probes with valuable additional properties compared to the other carriers. Herein, we aim to review (1) the gamma-emitting radionuclides used for labeling different nanomaterials, (2) the approaches and conditions adopted for their radiolabeling, and (3) their application. This study can help researchers to compare different radiolabeling methods in terms of stability and efficiency and choose the best way for each nanosystem.


Assuntos
Nanopartículas , Compostos Radiofarmacêuticos , Radioisótopos/uso terapêutico , Tomografia Computadorizada de Emissão de Fóton Único , Tomografia por Emissão de Pósitrons/métodos
9.
Health Sci Rep ; 6(1): e1049, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36628109

RESUMO

Background: The rapid prevalence of coronavirus disease 2019 (COVID-19) has caused a pandemic worldwide and affected the lives of millions. The potential fatality of the disease has led to global public health concerns. Apart from clinical practice, artificial intelligence (AI) has provided a new model for the early diagnosis and prediction of disease based on machine learning (ML) algorithms. In this study, we aimed to make a prediction model for the prognosis of COVID-19 patients using data mining techniques. Methods: In this study, a data set was obtained from the intelligent management system repository of 19 hospitals at Shahid Beheshti University of Medical Sciences in Iran. All patients admitted had shown positive polymerase chain reaction (PCR) test results. They were hospitalized between February 19 and May 12 in 2020, which were investigated in this study. The extracted data set has 8621 data instances. The data include demographic information and results of 16 laboratory tests. In the first stage, preprocessing was performed on the data. Then, among 15 laboratory tests, four of them were selected. The models were created based on seven data mining algorithms, and finally, the performances of the models were compared with each other. Results: Based on our results, the Random Forest (RF) and Gradient Boosted Trees models were known as the most efficient methods, with the highest accuracy percentage of 86.45% and 84.80%, respectively. In contrast, the Decision Tree exhibited the least accuracy (75.43%) among the seven models. Conclusion: Data mining methods have the potential to be used for predicting outcomes of COVID-19 patients with the use of lab tests and demographic features. After validating these methods, they could be implemented in clinical decision support systems for better management and providing care to severe COVID-19 patients.

10.
Multimed Tools Appl ; 82(12): 17879-17903, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36313481

RESUMO

Today according to social media, the internet, Etc. Data is rapidly produced and occupies a large space in systems that have resulted in enormous data warehouses; the progress in information technology has significantly increased the speed and ease of data flow.text mining is one of the most important methods for extracting a useful model through extracting and adapting knowledge from data sets. However, many studies have been conducted based on the usage of deep learning for text processing and text mining issues.The idea and method of text mining are one of the fields that seek to extract useful information from unstructured textual data that is used very today. Deep learning and machine learning techniques in classification and text mining and their type are discussed in this paper as well. Neural networks of various kinds, namely, ANN, RNN, CNN, and LSTM, are the subject of study to select the best technique. In this study, we conducted a Systematic Literature Review to extract and associate the algorithms and features that have been used in this area. Based on our search criteria, we retrieved 130 relevant studies from electronic databases between 1997 and 2021; we have selected 43 studies for further analysis using inclusion and exclusion criteria in Section 3.2. According to this study, hybrid LSTM is the most widely used deep learning algorithm in these studies, and SVM in machine learning method high accuracy in result shown.

11.
Daru ; 30(2): 289-302, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36087235

RESUMO

BACKGROUND: Recently biodegradable nanoparticles are the center of attention for the development of drug delivery systems. Molecularly imprinted polymer (MIP) is an interesting candidate for designing drug nano-carriers. MIP-based nanoparticles could be used for cancer treatment and exhibited the potential to fill gaps regarding to ligand-based nanomaterials. Also, the presence of a cross-linker can play an essential role in nanoparticle stability and physicochemical properties of nanoparticles after synthesis. OBJECTIVES: In this research, a biodegradable drug delivery system based on MIP nanoparticles was prepared using a biodegradable cross-linker (dimethacryloyl hydroxylamine, DMHA) for methotrexate (MTX). A hydrolysable functional group CO-O-NH-CO was added to the crosslinking agent to increase the final biodegradability of the polymer. METHODS: Firstly, a biodegradable cross-linker was synthesized. Then, the non-imprinted polymers were prepared through mini-emulsion polymerization in the absence of a template; and efficient particle size distribution was determined. Finally, methotrexate was placed in imprinted polymers to achieve the desired MIP. Different types of MIPs were synthesized using different molar ratios of template, cross-linker, and functional monomer, and the optimal molar ratio was obtained at 1:4:20, respectively. RESULTS: HNMR successfully confirmed the chemical structure of the cross-linker. According to SEM images, nanoparticles had a spherical shape with a smooth surface. The imprinted nanoparticles showed a narrow size distribution with an average of 120 nm at a high ratio of cross-linker. The drug loading and entrapment efficiency were 6.4% and 92%, respectively. The biodegradability studies indicated that the nanoparticles prepared by DMHA had a more degradability rate than ethylene glycol dimethacrylate as a conventional cross-linker. Also, the polymer degradation rate was higher in alkaline environments. Release studies in physiological and alkaline buffer showed an initial burst release of a quarter of loaded MTX during the day and a 70% release during a week. The Korsmeyer-Peppas model described the release pattern. The cytotoxicity of MTX loaded in nanoparticles was studied on the MCF-7 cell line, and the IC50 was 3.54 µg/ml. CONCLUSION: It was demonstrated that nanoparticles prepared by DMHA have the potential to be used as biodegradable drug carriers for anticancer delivery. Synthesis schema of molecular imprinting of methotrexate in biodegradable polymer based on dimethacryloyl hydroxylamine cross-linker, for use as nanocarrier anticancer delivery to breast tumor.


Assuntos
Polímeros Molecularmente Impressos , Nanopartículas , Metotrexato/farmacologia , Sistemas de Liberação de Medicamentos/métodos , Nanopartículas/química , Polímeros/química , Hidroxilaminas
13.
Iran J Pharm Res ; 20(2): 229-240, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34567158

RESUMO

Polymeric micelles (PMs) are one of Nanoscale delivery systems with high stability, loading capacity, and biocompatibility. PMs are nano-sized and spherical particles with a hydrophilic shell and hydrophobic core or reverse depending on their applications. Polymeric micelles could be synthesized by different methods, such as direct dissolution, dialysis method, and lyophilization. Microfluidics is also a relatively modern approach for this purpose, in which chemical reactions are carried out in the microchannels. Compared with conventional preparation methods, the microfluidic technique produces homogeneous polymeric micelles with desirable features, tunable particle size, and relatively high drug loading. These advantages are originated from the ability of microfluidics in precise control over the streamlines of reactants without chaotic turbulence. Although the synthesis of polymeric micelles by the microfluidic platform is advantageous, little or no review has been conducted to provide a clear image of the different PMs preparation by the microfluidic approach. Thus, in this review, the production of the PMs, utilizing microfluidic procedures to enhance their favorable characteristics is investigated. For this purpose, an electronic search is conducted on PubMed, Web of Science, Scopus, and Embase databases for retrieval of relevant papers. Seven papers are included in this systematic review. Preparation of PMs by the microfluidic approach and the effect of different parameters, such as the flow rate ratio, channel dimensions, drug concentration, and organic solvent type on PMs characteristics is obtained from the included papers.

15.
Iran J Kidney Dis ; 15(4): 300-305, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34279001

RESUMO

INTRODUCTION: Pulmonary artery hypertension (PAH) is common in end stage renal disease (ESRD) patients undergoing hemodialysis. Fibroblast growth factor-23 (FGF-23) increases in hemodialysis but its relationship with PAH is not completely understood. The aim of this study was to evaluate the relation between FGF-23 level and development of PAH in ESRD patients undergoing hemodialysis. METHODS: Patients undergoing hemodialysis for more than 6 months were enrolled in this cross-sectional study. Transthoracic echocardiography was performed to measure ejection fraction and pulmonary artery pressure (PAP) in all patients. Patients were grouped into normal PAP (PAP < 25 mmHg), elevated PAP (25 < PAP < 35 mmHg) and PAH (PAP > 35 mmHg). Parathormone hormone, calcium, phosphorus, vitamin D, and hemoglobin levels were also evaluated. RESULTS: Eighty-five patients (48 male, 56.47%) enrolled in this study. The mean age of the patients was 51.05 ± 16.45 years. Most of the patients (49, 57.65%) had normal PAP, 20 (23.53%) had elevated PAP and 16 (18.82%) had PAH. Serum biochemical markers and demographic characteristics were not significantly related to different PAP values (P > .05). Most of the patients (42, 49.41%) had normal FGF-23 levels. There was a significant relationship between PAP groups and FGF-23 and parathormone levels, P < .001, and P < .05; respectively. FGF-23 was significantly higher in PAH and elevated PAP groups compared with normal PAP group (P < .05). Only a significant positive correlation was observed between FGF-23 levels and PAP (P < .001). CONCLUSION: This finding highlights the possible role of FGF-23 in the development of vascular complications in ESRD patients.


Assuntos
Falência Renal Crônica , Hipertensão Arterial Pulmonar , Adulto , Idoso , Estudos Transversais , Fator de Crescimento de Fibroblastos 23 , Fatores de Crescimento de Fibroblastos , Humanos , Falência Renal Crônica/complicações , Falência Renal Crônica/diagnóstico , Falência Renal Crônica/terapia , Masculino , Pessoa de Meia-Idade , Diálise Renal/efeitos adversos
16.
Heliyon ; 7(4): e06914, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33997421

RESUMO

Metal-organic frameworks (MOFs) are a fascinating class of crystalline porous materials composed of metal ions and organic ligands. Due to their attractive properties, MOFs can potentially offer biomedical field applications, such as drug delivery and imaging. This study aimed to systematically identify the affecting factors on the MOF characteristics and their effects on structural and biological characteristics. An electronic search was performed in four databases containing PubMed, Scopus, Web of Science, and Embase, using the relevant keywords. After analyzing the studies, 20 eligible studies were included in this review. As a result, various factors such as additives and organic ligand can influence the size and structure of MOFs. Additives are materials that can compete with ligand and may affect the nucleation and growth processes and, consequently, particle size. The nature and structure of ligand are influential in determining the size and structure of MOF. Moreover, synthesis parameters like the reaction time and initial reagents ratio are critical factors that should be optimized to regulate the size and structure. Of note is that the nature of the ligand and using a suitable additive can control the porosity of MOF. The more extended ligands aid in forming large pores. The choice of metallic nodes and organic ligand, and the MOF concentration are important factors since they can determine toxicity and biocompatibility of the final structure. The physicochemical properties of MOFs, such as hydrophobicity, affect the toxicity of nanoparticles. An increase in hydrophobicity causes increased toxicity of MOF. The biodegradability of MOF, as another property, depends on the organic ligand and metal ion and environmental conditions like pH. Photocleavable ligands can be served for controlled degradation of MOFs. Generally, by optimizing these affecting factors, MOFs with desirable properties will be obtained for biomedical applications.

18.
Iran J Kidney Dis ; 14(5): 399-404, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32943595

RESUMO

INTRODUCTION: Pulmonary hypertension (PHTN) is a common complication in patients with chronic kidney disease. Delayed Graft Function (DGF), on the other hand; is an essential complication after kidney transplantation. These two complications increase morbidity and mortality in patients. The effect of PHTN on cardiovascular and graft blood supply, as well as the same mechanisms underlying PTHN and DGF; led us to investigate the relationship between them. METHODS: In this retrospective cohort study, 306 patients aged 18 years or older who underwent kidney transplantation at our center over a 4-year were enrolled. PTHN was diagnosed by transthoracic echocardiography performed by a cardiologist. DGF refers to the cases where the patient needs dialysis in the first week after kidney transplantation or if serum creatinine is ≥ 3 mg/dL on the 5th day after surgery. RESULTS: The prevalence of PHTN was 43 (14.1%), and the prevalence of DGF was 80 (26.1%). PHTN was not correlated with age, sex, duration of dialysis, type of dialysis, and cause of renal failure. But DGF was associated with the duration and type of dialysis. DGF was found to be higher in patients undergoing hemodialysis (P < .05), and patients with a higher mean duration of dialysis were also more likely to have DGF (P < .05). Also, we concluded that there was a significant relationship between PHTN and DGF (P < .05), meaning that patients with PTHN before transplantation were more likely to develop DFG. CONCLUSION: This study found that pre-transplant PTHN is an independent predictor of DGF in renal transplant patients.


Assuntos
Função Retardada do Enxerto , Hipertensão Pulmonar , Transplante de Rim , Rejeição de Enxerto , Sobrevivência de Enxerto , Humanos , Hipertensão Pulmonar/complicações , Diálise Renal , Estudos Retrospectivos , Fatores de Risco
19.
J Blood Med ; 11: 107-113, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32280292

RESUMO

BACKGROUND: Human brucellosis is a multisystem disease with a wide range of clinical signs which often leads to misdiagnosis and treatment delay. Early diagnosis of this disease can prevent the serious complications and mismanagements. This study aimed to evaluate the hematological parameters with predictive value for the diagnosis of brucellosis. METHODS: In this prospective case-control study which was done during 2015-2017 in Imam Reza Hospital, Kermanshah Province, west Iran, 100 patients with a confirmed diagnosis of brucellosis (brucellosis group) and 100 healthy individuals (control group) were studied. The hematological parameters, including hemoglobin (Hb), red blood cell (RBC), white blood cell (WBC) count, lymphocyte count, neutrophil count, platelet count (PLTs), mean platelet volume (MPV), platelet distribution width (PDW), erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP) of both groups were recorded. The data were statistically compared between the brucellosis and the control groups. RESULTS: The mean age of patients and healthy groups was 44.04 ± 23.11 and 37.92 ± 24.80, respectively (P = 0.062). The WBC, CRP and neutrophil counts were significantly higher in the brucellosis group (P < 0.05). Based on the receiver operating characteristic (ROC) analysis, the sensitivity and specificity were 54% and 66% for the WBC, 45% and 71% for the neutrophil and 65% and 72% for the CRP, respectively. There was no statistically significant difference between the two groups in terms of Hb, RBC, WBC, lymphocyte and platelet count, MPV, PDW and ESR (P > 0.05). CONCLUSION: The results of this study indicate that WBC, CRP and neutrophil count can be used as valuable markers in the preliminary diagnosis of brucellosis. However, further researches are required to standardize these parameters for various forms of brucellosis.

20.
JMIR Public Health Surveill ; 6(2): e18828, 2020 04 14.
Artigo em Inglês | MEDLINE | ID: mdl-32234709

RESUMO

BACKGROUND: The recent global outbreak of coronavirus disease (COVID-19) is affecting many countries worldwide. Iran is one of the top 10 most affected countries. Search engines provide useful data from populations, and these data might be useful to analyze epidemics. Utilizing data mining methods on electronic resources' data might provide a better insight into the COVID-19 outbreak to manage the health crisis in each country and worldwide. OBJECTIVE: This study aimed to predict the incidence of COVID-19 in Iran. METHODS: Data were obtained from the Google Trends website. Linear regression and long short-term memory (LSTM) models were used to estimate the number of positive COVID-19 cases. All models were evaluated using 10-fold cross-validation, and root mean square error (RMSE) was used as the performance metric. RESULTS: The linear regression model predicted the incidence with an RMSE of 7.562 (SD 6.492). The most effective factors besides previous day incidence included the search frequency of handwashing, hand sanitizer, and antiseptic topics. The RMSE of the LSTM model was 27.187 (SD 20.705). CONCLUSIONS: Data mining algorithms can be employed to predict trends of outbreaks. This prediction might support policymakers and health care managers to plan and allocate health care resources accordingly.


Assuntos
Infecções por Coronavirus/epidemiologia , Coronavirus , Mineração de Dados , Aprendizado Profundo , Pneumonia Viral/epidemiologia , Ferramenta de Busca/tendências , Betacoronavirus , COVID-19 , Surtos de Doenças , Feminino , Humanos , Incidência , Irã (Geográfico)/epidemiologia , Masculino , Pandemias , Projetos Piloto , Fatores de Risco , SARS-CoV-2
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