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Shift work is associated with circadian misalignment, which causes sleep loss, impairs performance, and increases the risk of accidents. Shorter, more frequently shifting watch schedules, widely used in industries such as maritime operation, defense, and mining, may mitigate these risks by reducing shift length and providing sleep opportunities for all workers across the biological night. However, the effects of frequently shifting work on sleep and performance still need to be clarified. The current study investigated the vigilance, sleepiness, and sleep patterns of fifteen participants who lived in a controlled and confined laboratory that mimicked a maritime environment for 14 d following a simulating frequent shift schedule. The results of psychomotor vigilance tasks (PVT) suggest that this shift schedule may lead to an accumulation of vigilance detrimental across watch days, with both reaction speed impairment and error growth. Furthermore, the circadian phase significantly affects PVT performance, with the afternoon shift section showing relatively better performance. Overall, more working hours per day resulted in poorer PVT performance. As the shift progressed, total sleep duration reduced slightly, and wake after sleep onset (WASO) increased. Sleep during the biological night was generally longer than sleep in the daytime. Less on-watch time was linked to longer overall sleep duration. Additionally, although the subjective sleepiness obtained by the Karolinska Sleepiness Scale (KSS) varied insignificantly across days, the KSS score was negatively correlated with PVT performance. This research can serve as a foundation for developing countermeasures to mitigate frequently shifting schedules' potentially detrimental effects and safety risks.
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Trastornos del Sueño del Ritmo Circadiano , Humanos , Somnolencia , Tolerancia al Trabajo Programado , Ritmo Circadiano , Sueño , VigiliaRESUMEN
OBJECTIVE To opti mize the supercritical CO 2 extraction technology of volatile oil from Blumea balsamifera ,and compare the components of the volatile oil from B. balsamifera obtained by supercritical CO 2 extraction and steam distillation. METHODS The volatile oil of B. balsamifera was extracted by supercritical CO 2 extraction. Using extraction rate of volatile oil as index,extraction temperature ,extraction pressure and extraction time as factors ,based on single-factor experiment ,orthogonal experiment was used to optimize the supercritical CO 2 extraction technology. Gas chromatography-mass spectrometry was used to identify the components of volatile oil from B. balsamifera . Peak area normalization was used to calculate the relative contents of each component. Taking the volatile oil obtained by steam distillation as a reference ,the extraction rates ,components and contents of volatile oil by the two methods were compared. RESULTS The optimal supercritical CO 2 extraction technology of volatile oil from B. balsamifera included extraction pressure of 30 MPa,extraction temperature of 50 ℃ and extracting for 50 min. After 3 times of validation tests ,average extraction rate of volatile oil was 4.64%(RSD=0.54%,n=3). Thirty-nine components such as tritriacontane,stigmasterol,squalene were identified in the volatile oil of B. balsamifera obtained by supercritical CO 2 extraction; and 51 components such as triacontane ,ledol,humulene epoxide Ⅰ were identified by steam distillation. The extraction rate of volatile oil from B. balsamifera obtained by 2 methods were 4.64% and 0.99%. A total of 26 common components were obtained , such as xanthoxylin ,L-borneol,β-caryophyllene. Except for xanthoxyline (34.829% by supercritical CO 2 extraction,30.676% by steam distillation method )and phytol (2.401% by supercritical CO 2 extraction,1.273% by steam distillation ),the relative contents of the components of volatile oil obtained by supercritical CO 2 extraction were lower than those of steam distillation. CONCLUSIONS The optimal supercritical CO 2 extraction technology is stable and feasible ;the components and contents of volatile oil obtained by two methods varies greatly ,and main compounds are aldehydes and ketones ,alkenes,alcohols and other components.
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The clinical symptoms and signs of methamphetamine-associated psychosis (MAP) and schizophrenia are highly similar, but the situation is completely different when MAP and schizophrenia patients need to be assessed for criminal responsibility after they comitted a harmful behavior. Therefore, the distinction between the two psychoses is very important in forensic psychiatry. At present, the identification of these two psychoses is mainly dependent on the corresponding criteria such as the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) and the Chinese Classification of Mental Disorders Version 3 (CCMD-3). It's challenging to diagnose and distinguish between the two in practical cases due to their similar clinical symptoms and the lack of effective objective indexes. Different from the limitations of single omics, integrative omics intergrates data from multiple dimensions and has been extensively studied in the field of schizophrenia and has achieved some preliminary results. In view of the correlation between MAP and schizophrenia and the potential application value of integrative omics, this paper proposes an integrative omics strategy for MAP pathogenesis and forensic identification, aiming to improve the further understanding of the relationship between the two psychoses and the corresponding pathogenesis. It also provides references for the future exploration of integrative omics in forensic precise identification and effective monitoring and early warning methods.
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Humanos , Metanfetamina/efectos adversos , Psicosis Inducidas por Sustancias/etiología , Trastornos Psicóticos/genética , Esquizofrenia/genética , Diagnóstico DiferencialRESUMEN
The bone formation promoter recombinant human parathyroid hormone 1-34 [PTH (1-34)] has a short half-life and low bioavailability. In this study, we prepared a biodegradable and temperature-sensitive hyaluronic acid-poly-N-isopropyl acrylamide (AHA-g-PNIPAAm), and further investigated its effects of PTH (1-34) release and cell behavior as drug carrier. The structure of AHA-g-PNIPAAM was confirmed by hydrogen nuclear magnetic resonance spectroscopy and infrared spectroscopy. Next, PTH (1-34) loaded thermo-sensitive hydrogels were prepared by physical swelling method and their stability was investigated. The morphology of hydrogel was observed by scanning electron microscope. The minimum critical transition temperature and drug release behavior of hydrogels were investigated by ultraviolet spectrophotometry. The tetrazolium-based colorimetric assay (MTT assay) was used to investigate the toxicity and proliferation effects of PTH (1-34)-loaded thermo-sensitive hydrogel on mouse mononuclear macrophage RAW264.7 and mouse precranial osteoblasts MC3T3-E1. The effect of PTH (1-34)-loaded thermo-sensitive hydrogel on the differentiation of RAW264.7 was investigated by the tartrate-resistant acid phosphatase assay. The results showed that the PTH (1-34)-loaded thermo-sensitive hydrogel prepared in this study displayed regular three-dimensional honeycomb structure, and had good stability, thermo-sensitivity and sustained and controlled release properties, which could promote the proliferation of MC3T3-E1 cells more effectively and inhibit the differentiation of RAW264.7 into osteoclasts.
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OBJECTIVE: To establish the fingerprint of the ethanol e xtract from Melastoma dodecandrum , to study spectrum-effect relationship of its antioxidant activity. METHODS :HPLC method and Similarity Evaluation System of TCM Chromatographic Fingerprint (2012 edition)were used to establish the fingerprints of 15 batches of ethanol extracts from M. dodecandrum,and heir similarity was evaluated. The common peaks were identified by comparing with substance control. DPPH free radical scavenging method ,ABTS free radical scavenging method and total antioxidant capacity determination method (FRAP) were used to determine antioxidant activity in vitro of 15 batches of ethanol extracts from M. dodecandrum . Principal component analysis,bivariate correlation analysis and partial least squares regression analysis were used to study the spectrum-effect relationship of the antioxidant activity of the ethanol extracts from M. dodecandrum . RESULTS :Totally 20 common peaks were identified in HPLC fingerprints of 15 batches of ethanol extracts from M. dodecandrum ;its similarity with the control fingerprint was not less than 0.831;it was identified that peak 3 was gallic acid ,peak 13 was vitexin ,peak 17 was rutin and peak 19 was ellagic acid. The IC 50 values of DPPH radical scavenging method of 15 batches of ethanol extracts from M. dodecandrum were 21.98-57.87 μ g/mL,that of ABTS radical scavenging method were 40.94-101.88 μ g/mL,the results of FRAP method were 0.19-0.48 mg/mL. Principal component analysis showed that the contribution rate of IC 50 variance of DPPH was 80.77%. Bivariate correlation analysis showed that the peak areas of peak 2 (positive correlation ) and peak 11 (negative correlation ) were significantly correlated with antioxidant activity (P<0.05);partial least squares regression analysis showed that ,the variable projection importance (VIP)in descending order was peak 11>peak 2>peak 16>peak 15>peak 12>peak 13>peak 18,and their VIP values were greater than 1. Peaks 2,13,15,16 and 18 were positively correlated with antioxidant activity ,and peaks 11 and 12 were negatively correlate d with antioxidant activity ,and the absolute value of standardized regression coefficient were greater than 0.1. CONCLUSIONS :Fifteen batches of ethanol extracts of M. dodecandrum have antioxidant activity in vitro . The compounds corresponding to common peaks 2,11,12, 13,15,16 and 18 may be the material basis of antioxidant activity of M. dodecandrum .
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Objective To study the accuracy of Nolla method for age estimation of Northern Chinese Han children aged between 5.00 and 14.99 years based on original transformation tables and multiple regression model. Methods A total of 2 000 orthopantomographs (OPGs) were collected from the Hospital of Stomatology, Xi'an Jiaotong University, including 1 000 males and 1 000 females. Development stage of 7 left mandibular permanent teeth (except third molars) was assessed based on Nolla method, then age estimation was conducted through transformation tables and multiple regression model, respectively. Firstly, the development stage results of 7 permanent teeth were added up and the estimated age was obtained through the original transformation tables. Secondly, 80% of the samples (80 males and 80 females in each age group) were randomly selected from 2 000 OPGs as the train set. The chronological age of the selected patients was taken as the dependent variable, while gender and the development stage results of 7 permanent teeth were taken as the independent variable to establish multiple regression model. The remaining 20% of the samples were substituted into the model as the test set, to verify the accuracy of age estimation by multiple regression model. Results Mean chronological ages of males and females were 10.03±0.09 years and 10.01±0.09 years, respectively. The age estimated by original transformation tables showed an overestimation for males (0.18 years on average) and an underestimation for females (0.02 years on average), with mean absolute error (MAE) of 0.94 years and 0.97 years, respectively. While the results by multiple regression model showed that males were overestimated by 0.06 years on average and females were underestimated by 0.02 years on average. The MAE was 0.66 years and 0.77 years, respectively. Conclusion The Nolla method is suitable for age estimation of Northern Chinese Han children. Compared with the original transformation tables method, the multiple regression model is more accurate for age estimation.
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Adolescente , Niño , Preescolar , Femenino , Humanos , Masculino , Determinación de la Edad por los Dientes , Pueblo Asiatico , China , Tercer Molar , Radiografía PanorámicaRESUMEN
Facial reconstruction is a way to recover facial morphology by restoring soft tissues based on unidentified skulls using the knowledge of anatomy, anthropology, aesthetics, and computer science. It is applied in forensic science, oral plastic surgery and archeology, and especially plays an important role in the identification of the origin of the unknown corpses in forensic science. Facial reconstruction is the supplementary means of identification when other approaches (such as DNA comparison, imaging matching, dental records comparison, etc.) cannot identify individual identity. Facial soft tissue thickness (FSTT) is the basis of facial reconstruction and with the development of imaging and computer science, the techniques for measuring FSTT are improving rapidly and many related researches have appeared. This paper summarizes the application of facial reconstruction in forensic science, the accuracy of different methods and the research progress of this field to provide reference to this field.
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Cara/cirugía , Antropología Forense , Ciencias Forenses , Investigación , Cráneo/cirugíaRESUMEN
Objective To establish a linear relationship between age and the development process of the mandibular second, third molars in a northern Chinese population and test its accuracy in inferring whether the subject is over 18 years old. Methods The orthopantograms (OPGs) of 960 northern Chinese people aged between 10.00 to 25.99 years were selected. The gender, birth date, and date of the orthopantograms of each sample were recorded. The development stages of left mandibular second and third molars were divided with Demirjian method. The experimental group (760 individuals) constructed a Logistic regression equation to infer whether the subject is over 18 years old. The validation group (200 individuals) tested the accuracy of the equation. Results When only using third molar, the formula obtained for inferring whether the subject's age is over 18 years is: logit P1=-18.276+0.494 x1+2.953 x3. When combining the second and the third molars, the formula is: logit P2=-21.045+3.177 x1+0.619 x2+2.088 x3. (x1 stands for gender, male is marked as 1 and female is marked as 2; x2 and x3 stand for the development stage of second molar and third molar, respectively). The accuracy rates of this equation in estimating whether ages of subjects from the validation group were over 18 years old for males and females were 88.0%-92.0% and 85.0%-88.0%, respectively. Conclusion The age estimation formulas based on the development of mandibular second and third molars have important value in judging whether the individual is over 18 years old. Meanwhile, the accuracy of age estimation can be improved by combining the development of second and third molars together.
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Adolescente , Femenino , Humanos , Masculino , Adulto Joven , Determinación de la Edad por los Dientes , Pueblo Asiatico , Modelos Logísticos , Tercer Molar , Radiografía PanorámicaRESUMEN
In recent years, individual age estimation has gained increasing attention in forensic practice. Common age estimation methods mainly use developments of teeth and bones. Compared with bones, teeth are stronger and are highly resistant to external factors, therefore plays an important role in age estimation. Demirjian's method is one of the most commonly used methods to evaluate dental age and has been widely used in many countries. In this paper, the accuracy of its application in different populations is reviewed. It is found that compared with the chronological ages, most of the estimated ages are overestimated. By combining research results of many scholars and by analyzing, it can be assumed that this situation may be related with race, region, sex, etc.
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Determinación de la Edad por los Dientes , Odontología Forense/normas , Investigación/tendencias , Diente/anatomía & histologíaRESUMEN
Sangzhi alkaloids (SZ-A) are derived from traditional Chinese medicine Ramulus Mori, serving well as an innovative antidiabetic drug, due to α-glucosidase inhibition. To evaluate the potency of glucosidase inhibitory effect of SZ-A, the enzyme-based screening platforms, including sucrase, maltase and amylase were established, and IC50 was calculated. The effects of SZ-A on postprandial blood glucose at a single dose, oral sucrose, starch and glucose loading were determined in normal ICR mice and alloxan-induced hyperglycemic mice. To confirm the anti-diabetic effects of SZ-A on glucose and lipid metabolism after long-term administration, the postprandial and fasting blood glucose, serum insulin, urinary glucose levels, glycosylated serum proteins and blood lipid levels were determined in high-fat fed C57 obese mice (pre-diabetic HFC57 mice) and diabetic rats induced by streptozotocin (STZ). The Experimental Animal Welfare Ethics Committee of the Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College approved all of the protocols for this research. We found that SZ-A exhibited a significant inhibitory effect on the sucrase and maltase. SZ-A showed no effect on amylase. In normal ICR mice and alloxan-induced hyperglycemic mice, SZ-A at a single dose significantly delayed and reduced the peak of blood glucose after sucrose or starch loading, but showed no effect on the increase of blood glucose after glucose loading. In STZ diabetic rats, SZ-A significantly reduced the postprandial or fasting blood glucose levels, glycosylated serum proteins and urinary glucose. SZ-A also reduced serum triglyceride (TG) and cholesterol (TC) levels after 3 weeks of treatment. SZ-A ameliorated the postprandial blood glucose or the fasting blood glucose elevation, and reduced the incidence of hyperglycemia in HFC57 mice. SZ-A decreased the basal insulin level, improved insulin sensitivity, and ameliorated glucose intolerance in pre-diabetic HFC57 mice. Our results indicated that SZ-A had a novel inhibitory activity on α-glucosidase, especially on disaccharidases. SZ-A at a single dose significantly reduced the peak of blood glucose elevation and delayed the increase of blood glucose in normal and diabetic mice after disaccharide and polysaccharide loading. Long-term SZ-A treatment improved glucose and lipid metabolic profiles by delaying carbohydrate absorption from the intestine and reduced the postprandial blood glucose levels in both pre-diabetic and diabetic animal models. Therefore, SZ-A application may display a beneficial role in preventing the development and complications of diabetes.
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Age estimation is a hot and difficult issue in forensic practice. Teeth are the most solid organs in human body and can be kept in vitro for a long time. With age, the secondary dentin gradually generates and the volume of pulp cavity constantly decreases. Therefore, forensic dentists proposed that age-related changes of dentin-pulp complex could be used to estimate age, which has been widely applied in forensic practice over the years. Due to the development of imaging technology, a variety of methods have been advocated by forensic dentists to detect the age-related changes of dentin-pulp complex for age estimation. However, different methods have their own advantages and limitations, forensic scientists should combine the use of different methods for improving the accuracy of age estimation according to the actual situation. This paper reviews current research of age estimation based on dentin-pulp complex, so as to provide reference for related research.
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Humanos , Determinación de la Edad por los Dientes , Pulpa Dental , Dentina , Odontología Forense/métodosRESUMEN
Lyssaviruses, including Rabies virus, Duvenhage virus, European bat lyssavirus 1, European bat lyssavirus 2, Australian bat lyssavirus, and Irkut virus (IRKV), have caused human fatalities, but infection of IRKV in dogs has not been previously reported. In China, a dead dog that previously bit a human was determined to be infected with IRKV. Pathogenicity tests revealed that IRKVs can cause rabies-like disease in dogs and cats after laboratory infection. The close relationship between humans and pets, such as dogs and cats, may generate a new spillover-spreading route for IRKV infection. Therefore, additional attention should be paid to trans-species infection of IRKV between bats and dogs or dogs and humans through investigation of the prevalence and circulation patterns of IRKV in China.
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Animales , Perros , Humanos , Masculino , China , Transmisión de Enfermedad Infecciosa , Vectores de Enfermedades , Enfermedades de los Perros , Virología , Genes Virales , Lyssavirus , Genética , Virulencia , Filogenia , Infecciones por Rhabdoviridae , VirologíaRESUMEN
Objective To realize the automated bone age assessment by applying deep learning to digital radiography(DR)image recognition of left wrist joint in Uyghur teenagers, and explore its practical ap-plication value in forensic medicine bone age assessment. Methods The X-ray films of left wrist joint after pretreatment, which were taken from 245 male and 227 female Uyghur nationality teenagers in Uygur Autonomous Region aged from 13.0 to 19.0 years old, were chosen as subjects. And AlexNet was as a regression model of image recognition. From the total samples above, 60% of male and fe-male DR images of left wrist joint were selected as net train set, and 10% of samples were selected as validation set. As test set, the rest 30%were used to obtain the image recognition accuracy with an error range in ±1.0 and ±0.7 age respectively, compared to the real age. Results The modelling results of deep learning algorithm showed that when the error range was in ±1.0 and ±0.7 age respectively, the accuracy of the net train set was 81.4% and 75.6% in male, and 80.5% and 74.8% in female, respectively. When the error range was in ±1.0 and ±0.7 age respectively, the accuracy of the test set was 79.5% and 71.2% in male, and 79.4% and 66.2% in female, respectively. Conclusion The combination of bone age research on teenagers' left wrist joint and deep learning, which has high accuracy and good feasi-bility, can be the research basis of bone age automatic assessment system for the rest joints of body.
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Chinese ferret badger (FB)-transmitted rabies is a serious threat to public health in southeast China. Although mostly associated with dogs, the rabies virus (RABV) presents genetic diversity and has a significantly wide host range in China. Instead of the dog- and wildlife-associated China II lineage in the past decades, the China I lineage has become the main epidemic group hosted and transmitted by dogs. In this study, four new lineages, including 43 RABVs from FBs, have been classified within the dog-dominated China I lineage since 2014. FB RABVs have been previously categorized in the China II lineage. Moreover, FB-hosted viruses seem to have become the main independent FB-associated clade in the phylogenetic tree. This claim suggests that the increasing genetic diversity of RABVs in FBs is a result of the selective pressure from coexisting dog rabies. FB transmission has become complicated and serious with the coexistence of dog rabies. Therefore, apart from targeting FB rabies, priority should be provided by the appropriate state agencies to perform mass immunization of dog against rabies.
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Animales , Perros , Encéfalo , Virología , China , Epidemiología , Reservorios de Enfermedades , Virología , Enfermedades de los Perros , Epidemiología , Virología , Hurones , Virología , Ligamiento Genético , Variación Genética , Filogenia , Filogeografía , Rabia , Epidemiología , Virología , Virus de la Rabia , GenéticaRESUMEN
Quality by design (QbD) concept is an advanced pharmaceutical quality control concept. The application of QbD concept in the research and development of pharmaceutical processes of traditional Chinese medicines (TCM) mainly contains five parts, including the definition of critical processes and their evaluation criteria, the determination of critical process parameters and critical material attributes, the establishment of quantitative models, the development of design space, as well as the application and continuous improvement of control strategy. In this work, recent research advances in QbD concept implementation methods in the secondary development of Chinese patent medicines were reviewed, and five promising fields of the implementation of QbD concept were pointed out, including the research and development of TCM new drugs and Chinese medicine granules for formulation, modeling of pharmaceutical processes, development of control strategy based on industrial big data, strengthening the research of process amplification rules, and the development of new pharmaceutical equipment..
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Deep learning and neural network models have been new research directions and hot issues in the fields of machine learning and artificial intelligence in recent years. Deep learning has made a breakthrough in the applications of image and speech recognitions, and also has been extensively used in the fields of face recognition and information retrieval because of its special superiority. Bone X-ray images express different variations in black-white-gray gradations, which have image features of black and white contrasts and level differences. Based on these advantages of deep learning in image recognition, we combine it with the research of bone age assessment to provide basic datum for constructing a forensic automatic system of bone age assessment. This paper reviews the basic concept and network architectures of deep learning, and describes its recent research progress on image recognition in different research fields at home and abroad, and explores its advantages and application prospects in bone age assessment.
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Objective To study effect of bufalin on invasion and metastasis of gastric cancer cells and related mechanism.Methods AGS human gastric cancer cell line was used for in vitro experiments.Cultured cells were treated by negative control group,bufalin group and oxaliplatin group.Cell proliferation was determined by MTT.Invasion and metastasis were observed by Wound-Healing Assay and Transwell Assay.Expression levels of E-cadherin,matrix metalloproteinases (MMP)-2,MMP-9 were detected by Western blotting.Results Bufalin was found to significantly inhibit the proliferation of AGS cells in a dose and time dependent manner.Wound-Healing Assay and Transwell Assay showed that as compared with the blank control group,bufalin inhibited invasion and metastasis of AGS cells (P< 0.05),but there was no statistically significant difference between bufalin group and oxaliplatin group (P>0.05).Western blotting showed the expression of E-cadherin was increased in bufalin group as compared with the blank control group while the expression levels of MMP-9 and MMP-2 were down-regulated (P<0.05),but there was no statistically significant difference between bufalin group and oxaliplatin group (P> 0.05).Conclusion Bufalin has anti-cancer activity on gastric cancer cells,and it has the ability of inhibiting cancer cell invasion and metastasis,and regulating the expression of some related gene.
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Objective To analyze syndrome types and TCM prescriptions of Behcet's disease;To summarize the regularity of TCM syndrome differentiation and treatment principles of Behcet's disease.Methods Related literature in CNKI and VIP database from Jan. 1990 to Oct. 2013 was searched. The syndrome patterns, characteristics of prescriptions and frequency of syndrome were summarized.Results There were 20 syndrome types of Behcet's disease in the 58 collected literature. Damp and hot accumulating poison, spleen and kidney Yang deficiency, liver and kidney Yin deficiency, and hot and damp were common syndromes, occupying 55.4%. Hot and damp occupied 41.3%;Yin deficiency occupied 18.1%;Yang deficiency occupied 12.9%. Liver, spleen and kidney were the main disease locations, occupying 94.4%. There were 197 Chinese herbs in total, and could be classified and further combined into 19 types, among which heat-clearing drugs, tonics, activate blood and removing blood stasis were commonly adopted, occupying 50.6%. There were 66 prescriptions collected, among which 31 were set prescriptions, and 35 were prescriptions formed by self-experience. Longdan Xiegan Decoction and Gancao Xiexin Decoction were commonly adopted.Conclusion Syndrome types and TCM prescription characteristics of Behcet's disease had certain regularity, which can provide reference for clinical diagnosis and treatment.
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Informed consent right is not just for basic ethical consideration, but is important for protect-ing patient’s right by law, which is expressed through informed consent contract. The appraised individ-uals of forensic clinical examination have the similar legal status as the patients in medical system. However, the law does not require informed consent right for the appraised individuals. I recommend giving certain informed consent right to the appraised individuals in the forensic clinical examination. Under the contracted relationship with the institution, the appraised individuals could participate in the examination process, know the necessary information, and make a selected consent on the examination results, which can assure the justice and fairness of judicial examination procedure.
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Informed consent right is not just for basic ethical consideration, but is important for protecting patient's right by law, which is expressed through informed consent contract. The appraised individuals of forensic clinical examination have the similar legal status as the patients in medical system. However, the law does not require informed consent right for the appraised individuals. I recommend giving certain informed consent right to the appraised individuals in the forensic clinical examination. Under the contracted relationship with the institution, the appraised individuals could participate in the examination process, know the necessary information, and make a selected consent on the examination results, which can assure the justice and fairness of judicial examination procedure.