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1.
BMC Pediatr ; 24(1): 359, 2024 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-38783220

RESUMEN

BACKGROUND: Hypoxemia represents the most prevalent adverse event during flexible bronchoscopy procedures aimed at foreign body retrieval in pediatric patients; if not expeditiously managed, it carries the potential for cardiac or respiratory arrest. The specific risk factors contributing to the occurrence of hypoxemia during foreign body FB removal via bronchoscopy have yet to be definitively established. METHODS: This retrospective study included a cohort of 266 pediatric subjects from January 1, 2015, to December 31, 2022, who underwent flexible bronchoscopy for the purpose of FB extraction. In this cohort, the supraglottic airway was used to connect the anesthesia apparatus during the removal procedure. RESULTS: In total, 45 of the pediatric patients (16.9%) experienced episodes of hypoxemia during the FB removal procedure. Multivariate analysis revealed that the following factors were significantly associated with the occurrence of hypoxemia: an operation time exceeding 60 min (odds ratio [OR] 8.55; 95% confidence interval [CI] 3.82-19.13), a maximum diameter exceeding 7 mm (OR 5.03; 95% CI, 2.24-11.29), and the presence of radiological evidence indicating pneumonia (OR 2.69; 95% CI, 1.27-5.69). CONCLUSION: During flexible bronchoscopy procedures aimed at FB removal in pediatric patients, there is an increased susceptibility to hypoxemia. Factors including extended operation duration, larger FB dimensions, and radiographic evidence suggestive of pneumonia significantly contribute to a heightened risk of hypoxemia.


Asunto(s)
Broncoscopía , Cuerpos Extraños , Hipoxia , Humanos , Broncoscopía/efectos adversos , Estudios Retrospectivos , Cuerpos Extraños/complicaciones , Femenino , Masculino , Hipoxia/etiología , Niño , Preescolar , Factores de Riesgo , Lactante , Tempo Operativo , Adolescente
2.
BMC Anesthesiol ; 23(1): 100, 2023 03 30.
Artículo en Inglés | MEDLINE | ID: mdl-36997853

RESUMEN

BACKGROUND: The transversus abdominis plane (TAP) block in conjunction with intrathecal morphine has been demonstrated to provide more superior postcesarean analgesia to intrathecal morphine alone. However, the analgesia efficacy of their conjunction has not been demonstrated in patients with severe pre-eclampsia. The study aimed to compare the postcesarean analgesia of TAP block in conjunction with intrathecal morphine versus intrathecal morphine alone in women with severe pre-eclampsia. METHODS: Pregnant women with severe pre-eclampsia undergoing planned cesarean section were randomly allocated into 2 groups to receive TAP block with 20 ml of 0.35% Ropivacaine (TAP group) or with the same volume of 0.9% saline (Sham group) after undergoing elective cesarean section under spinal anaesthesia with 15 mg of 0.5% Ropivacaine plus 0.1 mg of morphine. The outcomes for this analysis include the visual analog scale (VAS) pain score at rest and with movement at 4,8,12,24 h after TAP block was performed, times of use of intravenous patient-controlled analgesia (PCA) within 12 h after anesthesia, the occurrence of maternal side effects, maternal satisfaction, and Apgar score at 1 and 5 min of newborns. RESULTS: 119 subjects receive TAP block with 0.35% Ropivacaine (n = 59)or 0.9% saline (n = 60). At 4,8, 12 h after TAP block, the TAP group reported lower VAS score at rest [at 4 h: 1(0,1) vs. 1(1,2), P < 0.001; at 8 h:1(1,1) vs. 1(1.5,2),P < 0.001; at 12 h:1(1,2) vs. 2(1,2),P = 0.001] and higher satisfaction [53(89.9%) vs.45(75.0%), P < 0.05]. There were no differences between groups in VAS score at 24 h at rest and at all time points above with movement, times of use of PCA within 12 h after anesthesia, maternal side-effect, and Apgar score at 1 and 5 min of newborns. CONCLUSIONS: In conclusion, The TAP block performed in conjunction with intrathecal morphine may not reduce opioid consumption, but it could reduce VAS scores at rest in the first 12 h after cesarean section in women with severe pre-eclampsia, and improve maternal satisfaction, which is worthy of clinical promotion. TRIAL REGISTRATION: Registered at Chinese Clinical Trial Registry( http://www.chictr.org.cn ) on 13/12/2021: ChiCTR2100054293.


Asunto(s)
Morfina , Preeclampsia , Recién Nacido , Humanos , Femenino , Embarazo , Morfina/efectos adversos , Ropivacaína , Anestésicos Locales , Dolor Postoperatorio/tratamiento farmacológico , Cesárea/efectos adversos , Preeclampsia/inducido químicamente , Preeclampsia/tratamiento farmacológico , Solución Salina , Músculos Abdominales , Analgésicos Opioides/uso terapéutico , Analgesia Controlada por el Paciente
3.
BMC Anesthesiol ; 22(1): 219, 2022 07 13.
Artículo en Inglés | MEDLINE | ID: mdl-35831787

RESUMEN

BACKGROUND: Reintubation is a severe complication during foreign body (FB) removal that uses flexible bronchoscopy. OBJECTIVE: To investigate the incidence and risk factors for reintubations in children undergoing FB extraction by flexible bronchoscopy in a single center. DESIGN: A retrospective cross-sectional study. SETTING: All children with foreign body aspiration at Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University from January 2015 to December 2020. PATIENTS: Children with FB removal using a flexible bronchoscopy were enrolled in the trial according to the inclusion criteria. MEASUREMENTS: Both multivariable and logistic regression analyses were used to analyze the association between characteristic data and reintubations. The results were presented as odds ratios (ORs) with 95% confidence intervals (CIs). RESULTS: In total, 244 patients met with the inclusion criteria and were included in the analysis. Among those participants, 28 children (11.5%) underwent reintubations after FB removal by flexible bronchoscopy. Independent factors associated with reintubations were identified as operative time ≥ 60 min [OR: 3.68, 95% CI (1.64-8.82)] and ASA ≥ III [OR: 5.7, 95% CI (1.23-26.4)]. CONCLUSIONS: Children undergoing FB removal by a flexible bronchoscopy may encounter with a high incidence of postoperative reintubations. Both long operative duration and a severe physical status cause a growing risk of reintubations.


Asunto(s)
Broncoscopía , Cuerpos Extraños , Broncoscopía/métodos , Niño , Estudios Transversales , Femenino , Cuerpos Extraños/epidemiología , Cuerpos Extraños/cirugía , Humanos , Incidencia , Lactante , Embarazo , Estudios Retrospectivos , Factores de Riesgo
4.
Clin Otolaryngol ; 46(1): 206-212, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32920994

RESUMEN

OBJECTIVES: Our study aimed to investigate the clinical efficacy of argon-helium cryoablation and its effects on the immune function of patients with neck malignant tumours. DESIGN: Retrospective study. SETTING: Single-institution academic tertiary care centre. METHODS: Totally, 180 patients harbouring head and neck malignant tumours were divided into the argon-helium cryoablation group (n = 150) and the radiotherapy group (n = 50). The efficacy of the two groups was compared, and the immune function was observed. RESULTS: The short-term clinical effect of the argon-helium cryoablation group was significantly higher than that of the radiotherapy group (P < .05). After treatment, the CD3+, CD4+, CD8+ and CD4+/CD8+ of the argon-helium cryoablation group were significantly better than those of the radiotherapy group (P < .001). The results of TNF-α, IL-1 ß and CRP in the argon-helium cryoablation group were significantly better than that in the radiotherapy group (P < .001). CONCLUSION: Argon-helium cryoablation could effectively improve the immune function, 5-year survival rate and local remission rate.


Asunto(s)
Argón , Carcinoma/cirugía , Criocirugía , Neoplasias de Cabeza y Cuello/inmunología , Neoplasias de Cabeza y Cuello/cirugía , Helio , Adulto , Proteína C-Reactiva/metabolismo , Relación CD4-CD8 , Carcinoma/inmunología , Carcinoma/mortalidad , Femenino , Neoplasias de Cabeza y Cuello/mortalidad , Humanos , Interleucina-1beta/sangre , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Resultado del Tratamiento , Factor de Necrosis Tumoral alfa/sangre
5.
Pak J Pharm Sci ; 34(3(Special)): 1289-1295, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-34602402

RESUMEN

The aim of this study was to determine the radio sensitization of docetaxel in human esophageal squamous carcinoma ECA109 cell line by observing the effects of docetaxel in ECA109 cell proliferation, cell cycle distribution, apoptosis rate and related protein expression. Docetaxel inhibits the proliferation in ECA109 cell line in a dose-dependent and time-dependent manner, and 1nM was chosen for radio sensitization according to the inhibition curves. The D0 and SF2 values of ECA109 cells were 3.00Gy and 0.95, respectively, and of docetaxel (1nM) with irradiation group were 2.54Gy and 0.88. G0/G1 decreased (P<0.05), G2/M phase saw a spike (P<0.05) in the docetaxel with radiation group at 12h, 24h and 48h, while the apoptotic index witnessed a surge at 24h and 48h (P<0.05). The docetaxel with radiation group obtained a higher expression of p21 and bax protein than the docetaxel group and the radiation group (P<0.05), and a higher ratio of bcl-2/bax than the others (P<0.05). Docetaxel could inhibit the proliferation in ECA109 cell line. p21, bax, bcl-2 and other related proteins can regulate cell cycle phase distribution and induce cell apoptosis, thereby increasing the radiosensitivity effect of docetaxel in ECA109 cell line.


Asunto(s)
Apoptosis/efectos de los fármacos , Ciclo Celular/efectos de los fármacos , Proliferación Celular/efectos de los fármacos , Docetaxel/farmacología , Neoplasias Esofágicas/metabolismo , Carcinoma de Células Escamosas de Esófago/metabolismo , Radiación Ionizante , Fármacos Sensibilizantes a Radiaciones/farmacología , Apoptosis/efectos de la radiación , Ciclo Celular/efectos de la radiación , Puntos de Control del Ciclo Celular/efectos de los fármacos , Puntos de Control del Ciclo Celular/efectos de la radiación , Línea Celular Tumoral , Proliferación Celular/efectos de la radiación , Inhibidor p21 de las Quinasas Dependientes de la Ciclina/efectos de los fármacos , Inhibidor p21 de las Quinasas Dependientes de la Ciclina/metabolismo , Inhibidor p21 de las Quinasas Dependientes de la Ciclina/efectos de la radiación , Humanos , Proteínas Proto-Oncogénicas c-bcl-2/efectos de los fármacos , Proteínas Proto-Oncogénicas c-bcl-2/metabolismo , Proteínas Proto-Oncogénicas c-bcl-2/efectos de la radiación , Proteína X Asociada a bcl-2/efectos de los fármacos , Proteína X Asociada a bcl-2/metabolismo , Proteína X Asociada a bcl-2/efectos de la radiación
6.
BMC Pregnancy Childbirth ; 20(1): 151, 2020 Mar 12.
Artículo en Inglés | MEDLINE | ID: mdl-32164593

RESUMEN

BACKGROUND: Intravenous remifentanil patient-controlled analgesia (RPCA) is an alternative for epidural analgesia (EA) in labor pain relief. However, it remains unknown whether RPCA is superior to EA in decreasing the risk of intrapartum maternal fever during labor. METHODS: According to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, a systematic review and meta-analysis was performed by searching PubMed, EMBASE and the Cochrane Central Register of Controlled Trials from inception to April 2019. All randomized controlled trials (RCTs) investigating the risk of intrapartum maternal fever with RPCA compared with EA alone or EA in combination with spinal analgesia during labor were included. RESULTS: A total of 825 studies were screened, and 6 RCTs including 3341 patients were identified. Compared with EA, RPCA was associated with a significantly lower incidence of intrapartum maternal fever (risk ratio [RR] 0.48, P = 0.02, I2 = 49%) during labor analgesia. After excluding 2 trials via the heterogeneity analysis, there was no difference in the incidence of intrapartum fever between patients receiving RPCA and those receiving EA. Satisfaction with pain relief during labor was lower in the RPCA group than that in the EA group (- 10.6 [13.87, - 7.44], P < 0.00001, I2 = 0%). The incidence of respiratory depression was significantly greater in the RPCA group than that in the EA group (risk ratio 2.86 [1.65, 4.96], P = 0.0002, I2 = 58%). The incidence of Apgar scores < 7 at 5 min in the RPCA group was equivalent to that in the EA group. CONCLUSION: There is no solid evidence to illustrate that the incidence of intrapartum maternal fever is lower in patients receiving intravenous RPCA than in patients receiving EA.


Asunto(s)
Analgesia Epidural/métodos , Analgesia Controlada por el Paciente/métodos , Analgésicos Opioides/uso terapéutico , Dolor de Parto/tratamiento farmacológico , Remifentanilo/uso terapéutico , Analgesia Obstétrica/métodos , Puntaje de Apgar , Femenino , Fiebre/terapia , Humanos , Recién Nacido , Trabajo de Parto , Complicaciones del Trabajo de Parto/terapia , Manejo del Dolor/métodos , Dimensión del Dolor , Satisfacción del Paciente , Embarazo
7.
Biochem Biophys Res Commun ; 520(2): 333-340, 2019 12 03.
Artículo en Inglés | MEDLINE | ID: mdl-31604528

RESUMEN

Aberrant expression of long non-coding RNAs (lncRNAs) has been observed in hepatocellular carcinoma (HCC) and confirmed to participate in the initiation and progression of HCC. In the present study, we identified a novel functional lncRNA, hedgehog-interacting protein antisense RNA 1 (HHIP-AS1). The expression levels of HHIP-AS1 were significantly decreased in HCC tissues. Downregulation of HHIP-AS1 expression correlated with larger tumor size, metastasis, and advanced TNM stage, and also predicted worse overall survival rate of HCC patients. Through performing overexpression and knockdown experiments, the biological function of HHIP-AS1 was identified to suppress HCC cell proliferation, migration and invasion, while promote apoptosis. Further investigation showed that HHIP-AS1 interacted with and positively regulated the stability of HHIP mRNA in a HuR-dependent manner. HHIP-AS1 exerted its suppressive effects through HHIP. Taken together, our findings demonstrate that HHIP-AS1 represses HCC progression by promoting HHIP expression, and indicate that the use of HHIP-AS1 may offer a promising treatment for HCC patients.


Asunto(s)
Carcinoma Hepatocelular/patología , Proteínas Portadoras/genética , Neoplasias Hepáticas/patología , Glicoproteínas de Membrana/genética , ARN Largo no Codificante/genética , Anciano , Apoptosis/genética , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/mortalidad , Línea Celular Tumoral , Movimiento Celular/genética , Proliferación Celular/genética , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Estimación de Kaplan-Meier , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/mortalidad , Masculino , Persona de Mediana Edad , Pronóstico , Estabilidad del ARN , ARN sin Sentido/genética , ARN Mensajero
8.
Int J Legal Med ; 131(4): 1001-1007, 2017 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-28243772

RESUMEN

Aluminum phosphide (AlP) is an effective and cheap pesticide that is commonly used worldwide, but it is also a common cause of human poisoning and carries a high mortality rate. AlP reacts with moisture in air, water, and hydrochloric acid in the stomach to produce phosphine (PH3) gas. Two routes of exposure are ingestion of AlP and inhalation of phosphine generated by the action of moisture on AlP. Absorbed phosphine is rapidly metabolized into phosphite and hypophosphite. A method is described for the analysis of the phosphine metabolites in various biological matrices. The method involves reacting the sample with zinc and aqueous H2SO4 in a volatile organic analysis vial. The metabolites were transformed into phosphine gas and then analyzed by headspace gas chromatography coupled with mass spectrometry (HS-GC-MS). This method is capable of detecting quantities of PH3 as low as 0.2 µg/mL in a sample. After validation, the method was applied to animal experiments and a real case of human AlP intoxication. This approach has the advantage of detecting metabolites of PH3, in case the PH3 was converted, and can be considered a useful additional tool for the diagnosis of AlP poisoning in forensic science.


Asunto(s)
Compuestos de Aluminio/análisis , Compuestos de Aluminio/envenenamiento , Plaguicidas/análisis , Plaguicidas/envenenamiento , Fosfinas/análisis , Fosfinas/envenenamiento , Animales , Toxicología Forense/métodos , Cromatografía de Gases y Espectrometría de Masas , Humanos , Límite de Detección , Intoxicación/diagnóstico , Ratas
9.
Fa Yi Xue Za Zhi ; 32(2): 114-8, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-27501683

RESUMEN

OBJECTIVE: To determine the normal reference values of 33 elements, Ag, Al, As, Au, B, Ba, Be, Ca, Cd, Co, Cr, Cs, Cu, Fe, Ga, Hg, Li, Mg, Mn, Mo, Ni, Pb, Rb, Sb, Se, Sr, Th, Ti, Tl, U, V, Zn and Zr, in the blood and urine samples from the general population in Sanmen County of Zhejiang province, a typical coastal area of eastern China. METHODS: The 33 elements in 272 blood and 300 urine samples were determined by inductively coupled plasma-mass spectrometry (ICP-MS). The normality test of data was conducted using SPSS 17.0 Statistics. The data was compared with other reports. RESULTS: The normal reference values of the 33 elements in the blood and urine samples from the general population in Sanmen County were obtained, which of some elements were found to be similar with other reports, such as Co, Cu, Mn and Sr, while As, Cd, Hg and Pb were generally found to be higher than those previously reported. There was a wide variation between the reports from different countries in blood Ba. CONCLUSION: The normal reference values of the 33 elements in the blood and urine samples from the general population in Sanmen County are established, and successfully applied to two poisoning cases.


Asunto(s)
Análisis Químico de la Sangre , Elementos Químicos , Monitoreo del Ambiente , Urinálisis , China , Humanos
10.
Fa Yi Xue Za Zhi ; 31(2): 117-22, 2015 Apr.
Artículo en Zh | MEDLINE | ID: mdl-26245089

RESUMEN

OBJECTIVE: To determine the normal range of the 33 elements (Li, Be, B, Mg, Al, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, As, Se, Rb, Sr, Zr, Mo, Ag, Cd, Sb, Cs, Ba Au, Hg, Tl, Pb, Th and U) in human whole blood of general population in Hunan province. METHODS: Blood samples were analyzed by inductively coupled plasma-mass spectrometry (ICP-MS) to determine the normal range. The influences of district, gender and age to the element content in blood samples were also observed. RESULTS: The normal range of 33 elements in blood samples from general population in Hunan province were obtained. Gender was shown to statistically influence the concentrations of B, Mg, Ca, Ti, Mn, Fe, Co, Cu, Zn, As, Se, Rb, Sr, Ag, Cd, Cs, Hg and Pb (P < 0.05), while age was shown to influence the concentrations of Co, Ni, Cs and Hg in women (P < 0.05) as well as Cu, Se and Hg in men (P < 0.05). CONCLUSION: Although there are variables in different districts, the normal ranges of trace element in blood of the four cities in Hunan province are established.


Asunto(s)
Pueblo Asiatico/etnología , Espectrometría de Masas/métodos , Oligoelementos/sangre , Factores de Edad , China , Femenino , Humanos , Masculino , Estándares de Referencia , Valores de Referencia , Características de la Residencia , Factores Sexuales
11.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi ; 31(2): 298-301, 2014 Apr.
Artículo en Zh | MEDLINE | ID: mdl-25039131

RESUMEN

In order to guarantee the safety and accuracy of the whole treating process as well as better link up of each section during the treatment, we did research in order to establish a project concerning the process quality control (PQC) of treating liver cancer with CyberKnife. From the safety and accuracy point of view, we divided the whole process of treating liver cancer with CyberKnife into ten links, i.e. the registration of patients' information, the im plantation of fiducial markers, fixation of body posture, CT localization, target delineation, design of the treatment plan, quality assurance in physics, implementation of the treatment plan, inspection on the correctness and data archiving. We analyzed the possible mistakes in each link and the consequences brought by them. To smoothly connect all the links, a special part "Attention" was added between every two links. Various wrong operations which may influence the safety and accuracy of treatment were illustrated, and the consequences brought by them were also ex plained. The "Attention" part among links offers important information for the next step, and gives us reminding and warnings. The project of quality control covers all the important links when treating liver cancer with Cy berKnife. It offers regulations, reminding and warning for us so that the safety and accuracy of treatment can be guaranteed, and the work of all staff could be closely connected.


Asunto(s)
Neoplasias Hepáticas/cirugía , Radiocirugia/métodos , Humanos , Control de Calidad
12.
Fa Yi Xue Za Zhi ; 29(2): 110-5, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23930504

RESUMEN

To develop a simple, validated method for identifying and quantifying 1,3-butadiene (BD) in human blood by gas chromatography-mass spectrometry (GC-MS) and head-space gas chromatography (HS-GC). BD was identified by GC-MS and HS-GC, and quantified by HS-GC. The method showed that BD had a good linearity from 50 to 500 microg/mL (r > 0.99). The limits of detection and quantification were 10 microg/mL and 50 microg/mL, respectively. Both the intra-day precision and inter-day precision were < 6.08%, and the accuracy was 96.98%-103.81%. The method was applied to an actual case, and the concentration of BD in the case was 242 microg/mL in human blood. This simple method is found to be useful for the routine forensic analysis of acute exposure to BD.


Asunto(s)
Butadienos/sangre , Butadienos/envenenamiento , Cromatografía de Gases y Espectrometría de Masas/métodos , Intoxicación por Gas , Adulto , Toxicología Forense/métodos , Humanos , Masculino , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Solventes/química , Temperatura
13.
Fa Yi Xue Za Zhi ; 29(6): 425-30, 2013 Dec.
Artículo en Zh | MEDLINE | ID: mdl-24665612

RESUMEN

OBJECTIVE: To establish the electricity plate digestion and inductively coupled plasma-mass spectrometry (ICP-MS) method for determination of 33 inorganic elements in human hair. METHODS: Lithium (6Li), Germanium (72Ge), Yttrium (89Y), Indium (115In), and Terbium (159Tb) were used as internal standards. The electric heating board digestion in a mixture of nitric acid and hydrogen peroxide was used as the pre-treatment of the hair. Thirty-three inorganic elements in human hair were analyzed by ICP-MS method. RESULTS: The detection limit of ICP-MS was 0.0001 microg/g(Th)-10.9 microg/g (Ca) and the limit of quantitation was 0.0005 microg/g (Th)-25 microg/g (Ca). The recovery rate of this method was 86%-113%. The RSD for the intra-day and inter-day were less than 9.2%. The method was not statistically different from microwave digestion method. CONCLUSION: This method is highly efficient and accurate. It can be used for analysis of 33 inorganic elements in human hair.


Asunto(s)
Cabello/química , Espectrometría de Masas/métodos , Microondas , Oligoelementos/análisis , Electricidad , Humanos , Límite de Detección , Estándares de Referencia , Sensibilidad y Especificidad
14.
Front Psychol ; 14: 1177160, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37287779

RESUMEN

This research aims to combine the pursuit of literacy cultivation with a focused investigation into the evidence of game-based teaching (GBT). To achieve this, the study employs a mixed-methods approach including the interview method, Delphi method, and network hierarchical analysis (ANP) to analysis Expert opinions and construct a comprehensive GBT evaluation index system. The results indicated that a comprehensive GBT evaluation index system is comprised of five primary indicators: teaching objectives, game-based teaching methods, teaching content, game-based teaching processes, and game-based teaching characteristics. Additionally, there are 19 secondary indicators, such as objective content, game presentation, context construction, and flow experience. This study expects to effectively capture the unique attributes of game-based classes and to assist teachers in improving the design of GBT activities in practical applications.

15.
J Forensic Sci ; 68(4): 1425-1430, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37254609

RESUMEN

Colchicine has been widely used in the treatment of acute gout over the years, but it has a narrow therapeutic index, and overdose can be life threatening. A method using ultra-high-performance liquid chromatography-tandem mass spectrometry system was applied in two fatal cases of colchicine poisoning in this study to the determination of colchicine in blood. In case 1, a 19-year-old man suffered from depression and ingested 160 colchicine tablets (each 0.5 mg). The concentration of colchicine in his blood samples showed a fluctuating trend and kept above the therapeutic steady-state concentration for 5 days. In case 2, a 70-year-old female patient with a history of gout and chronic colchicine intake ingested five times the usual dose of colchicine (5 mg) and died after 12 days of medical care, with 5 ng/mL of colchicine in her blood sample. Our findings suggest that the delayed elimination and accumulation in humans after colchicine overdose could keep the concentration of colchicine maintaining above the therapeutic steady-state concentration for many days before dying, probably along with a fluctuating trend.


Asunto(s)
Sobredosis de Droga , Gota , Intoxicación , Humanos , Masculino , Femenino , Anciano , Adulto Joven , Adulto , Colchicina , Cromatografía Líquida de Alta Presión/métodos , Ingestión de Alimentos
16.
Forensic Sci Int ; 347: 111683, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37068373

RESUMEN

PURPOSE: Knowing and analyzing the characteristics and trends of forensic toxicology cases in a certain area is particularly important for a local government to establish an effective prevention and control system. The purpose of this work was to summarize data from forensic toxicology cases received by the Academy of Forensic Sciences (AFS) in 2021. METHODS: As requested by the police or according to the details of cases, samples were systematically screened or analyzed by various methods. Liquid chromatography-tandem mass spectrometry and gas chromatography-mass spectrometry were used to identify medicinal drugs, drugs of abuse, pesticides, poison gases, etc. RESULTS: AFS received a total of 17,758 cases in 2021, of which 314 cases underwent autopsy. The main cause of death was sudden death, and the manner of death was mainly accident. Among 13,744 drug abuse cases, the number of positive cases was 1721, with a positive rate of 12.5%, and synthetic cannabinoids were the most frequently detected substances. In 3640 traffic cases, 85.3% of drivers were suspected of drunk driving. In 103 poisoning cases, hydrogen sulfide poisoning and pesticide suicide account for a large proportion. In drug-facilitated crimes, zolpidem was the most frequently tested component. In 55 case of dog poisonings, the main poisons were cyanides and succinylcholine, and the main poisoning tools were poisonous baits and poisonous syringe darts. CONCLUSIONS: This study profiles the toxicological characteristics of forensic toxicological cases conducted at the AFS in 2021 and provides a scientific basis for poisoning cases and drug abuse prevention.


Asunto(s)
Plaguicidas , Intoxicación , Trastornos Relacionados con Sustancias , Suicidio , Animales , Perros , Toxicología Forense/métodos , Estudios Retrospectivos , Medicina Legal , Intoxicación/diagnóstico
17.
Fa Yi Xue Za Zhi ; 28(6): 456-60, 463, 2012 Dec.
Artículo en Zh | MEDLINE | ID: mdl-23484331

RESUMEN

Inductively coupled plasma-mass spectrometry (ICP-MS) is the most common technique for elements analysis at present. ICP-MS with high sensitivity and wide linear range can be applied to multi-elements analysis in blood and urine. This paper reviews the common means of sample pretreatment (direct dilution method and wet digestion method), the method for correction of mass spectral interference and non-interference, the main influence factors of analysis results, and provides an outlook of the application of ICP-MS in forensic toxicological analysis.


Asunto(s)
Líquidos Corporales/química , Espectrometría de Masas/métodos , Metales Pesados/análisis , Oligoelementos/análisis , Humanos , Espectrometría de Masas/instrumentación , Metales Pesados/sangre , Metales Pesados/orina , Microondas , Sensibilidad y Especificidad , Manejo de Especímenes/métodos , Oligoelementos/sangre , Oligoelementos/orina
18.
Forensic Sci Int ; 337: 111350, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35709589

RESUMEN

Drug abuse/misuse is now a major global problem affecting public health as well as economic and social stability. This study presents a retrospective view of the prevalence of drugs in hair. Reasons for hair testing include the need for law enforcement to test suspicious individuals and the need for employers in specific industries to test their employees. Toxicology analysis results were reviewed for a total of 19,275 hair samples requested for drug abuse/misuse analysis at the Academy of Forensic Science over 29 months from February 2019 to June 2021. Drugs and their metabolites in hair samples were analyzed by liquid chromatography - tandem mass spectrometry. In the study, the 19,275 hair samples were screened for a total of 62 illegal drugs, which were divided into three categories: illegal-drugs (I), medication (II), and new psychoactive substances (III). These three categories contain 11, 29 and 22 drugs respectively. In these hair samples, 4852 (25.2 %) tested positive for one or more drugs. Among them, the positive rate of category I was the highest (48.7 %), followed by category II (28.5 %), and category III (22.7 %). Over all, the positive rate of male users (26.2 %) was higher than that of female users (23.7 %), and most of them were young people (25-44 years old). Illegal-drugs (morphine, etc.) had the highest positive rate. Under the influence of some certain factors, the drug abuse situation will also undergo corresponding changes. The results can provide a scientific knowledge database which can help in the prevention of drug abuse.


Asunto(s)
Drogas Ilícitas , Trastornos Relacionados con Sustancias , Adolescente , Adulto , Cromatografía Liquida/métodos , Femenino , Toxicología Forense/métodos , Cabello/química , Humanos , Drogas Ilícitas/análisis , Masculino , Estudios Retrospectivos , Detección de Abuso de Sustancias/métodos , Trastornos Relacionados con Sustancias/diagnóstico , Trastornos Relacionados con Sustancias/epidemiología
19.
Comput Math Methods Med ; 2022: 3473445, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36035278

RESUMEN

Background: Gastric signet ring cell carcinoma (SRCC) has shown a growth growing trend worldwide, but its clinicopathological features and prognostic-related risk factors have not been systematically studied. This systematic review was devoted to this. Method: PubMed, Embase, Cochrane Library, and Web of Science databases were retrieved, and retrospective cohort studies comparing clinicopathological features and related risk factors in SRCC patients were included. Results: In SRCC patient population, males were more than females (male, OR = 1.38, 95% CI: 1.20-1.60); N3 patients were more than N0-2 patients (N0-2, OR = 3.19, 95% CI: 1.98-5.15); M1 patients were more than M0 patients (M0, OR = 3.30, 95% CI: 1.88-5.80); patients with tumor > 5 cm were more than those with tumor (≤5 cm, OR = 7.36, 95% CI: 1.33-40.60). Patients with age < 60 years (age ≥ 60 years, OR = 1.03, 95% CI: 1.01-1.05), lymphatic vessel invasion (no, OR = 1.74, 95% CI: 1.03-2.45), T2 (T1, OR = 1.17, 95% CI: 1.07-1.28) and T4 (T1, OR = 2.55, 95% CI: 2.30-2.81) stages, and N1 (N0, OR = 1.73, 95% CI: 1.08-2.38), N2 (N0, OR = 2.24, 95% CI: 1.12-3.36), and N3 (N0, OR = 3.45, 95% CI: 1.58-5.32) stages had higher hazard ratio (HR). Conclusion: SRCC may occur frequently in male. Age, lymphatic vessel invasion, TN, and M stage may be risk factors for poor prognoses of SRCC patients.


Asunto(s)
Carcinoma de Células en Anillo de Sello , Neoplasias Gástricas , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Pronóstico , Estudios Retrospectivos , Factores de Riesgo
20.
Clin Res Hepatol Gastroenterol ; 46(5): 101889, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35183790

RESUMEN

OBJECTIVE: The study aimed to explore the effects of image-guided adaptive radiotherapy combined with hepatic artery chemoembolization on the immune function of primary liver cancer patients. METHODS: The study included 84 primary liver cancer patients who received treatment at our hospital between April 2018 and January 2020. They were divided into the control group (n=42, hepatic artery chemoembolization) and the study group (n=42, image-guided adaptive radiotherapy combined with hepatic artery chemoembolization) using the random number table method. AFP, ALT, AST, CA724, CA242 and immune function before and after treatment were compared in the two groups and the short-term efficacy and adverse events (AEs) were statistically analyzed. The two groups were followed up. RESULTS: After treatment, the study group had a higher ORR and DCR compared to the control group, and the difference was statistically significant (P < 0.05). There was no statistical difference in the levels of AFP, ALT, AST, CA724 and CA242 between the two groups before treatment (P > 05). After treatment, the study group had lower levels of AFP, ALT, AST, CA724 and CA242 than the control group, and the difference was statistically significant (P < 0.05). There was no statistical difference in the levels of CD4+, CD8+, and CD4+/CD8+ before treatment in the two groups (P > 05). After treatment, the study group had higher levels of CD4+ and CD4+/CD8+ but lower levels of CD8+ compared to the control group, and the difference was statistically significant (P < 0.05). In the study group, 2 patients developed radiation-induced liver disease, and the incidence was 4.76% (2/42), which occurred at 4 and 6 weeks after the end of radiotherapy, respectively. The patients mainly had elevated transaminases, ascites, and liver enlargement and hepatoprotection and nutritional support were provided, and the patients gradually recovered after treatment. There was no statistical difference in the incidence of AEs between the two groups (p > 0.05). All patients in the study completed follow up and the follow up completion rate was 100%. The median duration of follow up was 22.5 months. In the study group, 12 of 42 patients (28.57%) died and 21 cases (50.00%) had recurrence. In the control group, 21 of 42 cases (50.00%) died and 27 cases (64.29%) recurred. At 1 year, there was no statistical difference in ORR and DCR between the two groups (P > 0.05) and at 2 years, the study group had a higher ORR and DCR than the control group, and the difference was statistically significant (P < 0.05). CONCLUSION: Image-guided adaptive radiotherapy combined with hepatic artery chemoembolization may improve the immune function of primary liver cancer patients and is of important clinical application value.


Asunto(s)
Carcinoma Hepatocelular , Quimioembolización Terapéutica , Neoplasias Hepáticas , Carcinoma Hepatocelular/tratamiento farmacológico , Carcinoma Hepatocelular/radioterapia , Arteria Hepática , Humanos , Neoplasias Hepáticas/tratamiento farmacológico , Neoplasias Hepáticas/radioterapia , Resultado del Tratamiento
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