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RESUMEN Introducción: Dada la existencia de variadas guías para enfermedades respiratorias, se buscó conocer cuáles eligen los médicos para utilizar en su práctica clínica. Materiales y Métodos: se realizó un estudio descriptivo, transversal, mediante una encuesta a neumonólogos de la Asociación Argentina de Medicina Respiratoria. Resultados: La guía más utilizada para EPOC fue la Iniciativa Global para la Enferme dad Pulmonar Obstructiva Crónica (GOLD) (82 %), seguida por GesEPOC (51 %). Para asma las más usadas fueron la Iniciativa Global para el Asma (GINA) 2022 (89 %) y GEMA 5.2 (68 %). En asma de difícil control, se prefirieron GINA 2022 (82 %) y GEMA 2022 (53 %). En espirometría, un 54 % de los respondedores se inclinó por NHANES III y un 22 % utilizó valores teóricos de referencia de Knudson. En neumonía, el 62 % eligió SADI, el 37 %, IDSA y el 20 %, BTS. Para nódulos pulmonares, el 62 % prefirió las guías Fleischner, 35 % se inclinó por Lung-RADS 1.1. Para neumonitis por hip ersensibilidad, un 83 % seleccionó las guías de las sociedades conjuntas ATS/JRS/ ALAT. Para imágenes de fibrosis pulmonar, el 89 % utilizó ALAT/ERS/JRS/ALAT y el 18 % White Paper. Discusión: si bien hay estudios sobre adherencia a guías, no los hay acerca de pref erencias de utilización entre varias referidas a un mismo tema. En EPOC y asma (in cluyendo la de difícil control) se eligieron GOLD y GINA y las de la Sociedad Española de Patología Respiratoria (GesEPOC y GEMA). El uso preferencial de la guía nacional para neumonía es coherente con la necesidad de contemplar la epidemiología local.
ABSTRACT Introduction: Since there are various guidelines for respiratory diseases, we aimed to know which are chosen by physicians in their daily clinical practice. Materials and Methods: A descriptive, cross-sectional study was conducted through a questionnaire sent to pulmonologists of the Argentinian Association of Respiratory Medicine. Results: The most commonly used guideline for COPD (chronic obstructive pulmonary disease) was the Global Initiative for Chronic Obstructive Lung Disease (GOLD) (82 %), followed by GesEPOC (51 %). For asthma, the most commonly used guideline was the Global Initiative for Asthma (GINA) 2022 (89 %) and the Spanish Guideline on the Management of Asthma (known for its acronym in Spanish, GEMA), GEMA 5.2 (68 %). In difficult-to-control asthma, GINA 2022 (82 %) and GEMA 2022 (53 %) were used. With regard to spirometries, 54 % of respondents favored NHANES III (Third National Health and Nutrition Examination Survey) and 22 % used theoretical Knudson reference values. For pneumonia, 62 % chose the guidelines of the SADI (Argentinian Society of Infectious Diseases), 37 % preferred those of the IDSA (Infectious Diseases Society of America) and 20 %, chose the guidelines of the BTS (British Thoracic Society). For pulmonary nodules, 62 % used Fleischner guidelines, and 35 % favored Lung-RADS 1.1. For hypersensitivity pneumonitis, 83 % selected the ATS/JRS/ALAT Guidelines (American Thoracic Society/Japanese Respiratory Society/Latin American Thoracic Society). And with respect to pulmonary fibrosis imaging, 89 % used ALAT/ERS (Eu ropean Respiratory Society)/JRS recommendations, and 18 % preferred White Paper. Discussion: Although there are studies about adherence to guidelines, none of them shows which are the chosen recommendations within a group of guidelines of the same topic. In COPD and asthma (including difficult-to-control asthma) GOLD, GINA and the guidelines of the Spanish Society of Respiratory Disease (GesEPOC and GEMA) were chosen. The preference for the national guideline for pneumonia is consistent with the need to consider local epidemiology.
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Objective@#The purpose of this study was to investigate the differences in the anti cyclic fatigue performance of Woride KS (WKS), Proteper Gold (PTG), and Hyflex CM (HCM) nickel titanium instruments with different tip diameters in curved root canal models, and to provide reference for the targeted selection of suitable nickel titanium instruments in clinical preparation of curved root canals.
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Objective To construct methoxy polyethylene glycol (mPEG) modified gold nanoparticles (AuNPs) loaded with doxorubicin (DOX) AuNPs-mPEG@DOX in order to reduce the toxicity and side effects of DOX. Methods AuNPs-mPEG@DOX was prepared and characterized by Z-Average, Zeta potential and UV-Vis spectroscopy. The impact of thiol-linked DOX (HS-DOX) at various dosage concentrations on the drug adsorption rate and drug loading of AuNPs-mPEG@DOX was investigated. Furthermore, a HPLC method was developed to accurately determine the content of unadsorbed HS-DOX in AuNPs-mPEG@DOX. The specificity, linearity, precision, stability and average recovery of this method were thoroughly investigated. The cytotoxic effect of AuNPs-mPEG@DOX on MCF-10A and MCF-7 cells was evaluated using a CCK-8 assay. Results AuNPs-mPEG@DOX was successfully prepared with Z-Average of (46.12±0.49) nm, Zeta potential of (18.60±1.51) nm and the maximum absorption wavelength of 530 nm. An efficient HPLC method for the detection of unadsorbed HS-DOX in AuNPs-mPEG@DOX was devised. The optimal dosage concentration of HS-DOX for AuNPs-mPEG@DOX was determined to be 11.18 μg/ml, resulting in a drug adsorption rate of (9.21±2.88)% and a drug loading rate of (2.01±0.62)%. Cytotoxicity experiments demonstrated that AuNPs-mPEG@DOX significantly reduced the toxic and side effects of DOX on normal breast cells. Additionally, AuNPs-mPEG@DOX and free DOX exhibited comparable cytotoxic effects on breast tumor cells when DOX concentration was equal to or greater than 4.75 μmol/L. Conclusion AuNPs-mPEG@DOX effectively reduce the toxicity of DOX, providing a reference for future research on reducing the toxicity of AuNPs-linked drugs.
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Band 3 protein is an important channel protein in the erythrocyte membrane which mediates the anion transport process inside and outside the cell membrane,as well as contributes to the maintenance of erythrocyte morphology,and has important physiological functions.However,the distribution state of this protein in the primary cell membrane is not known.Cryo-scanning electron microscopy enables imaging of the surface morphology of biological samples in a near-physiological state.In order to investigate the distribution of band 3 protein on erythrocyte membranes under physiological conditions,the present study utilized 5-nm gold nanoparticles modified with the antibodies to specifically bind to the band 3 protein on human blood erythrocyte membranes and imaged them by cryo-scanning electron microscopy,to obtain distribution of band 3 protein on human blood erythrocyte membranes.The results showed that the membrane proteins on the erythrocyte membranes tended to be clustered and distributed to form ″protein islands″,and band 3 proteins were mainly distributed in these protein islands,which were tightly connected with each other to form several functional microregions to play their respective roles.
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Gold nanoparticles(AuNPs)present unique physicochemical characteristics,excellent biocom-patibility and ease of surface functionalization,which have become the research hotspots in the field of biosens-ing.This article reviews the synthesis methods,main properties and surface functionalization of AuNPs,as well as the research progress of application in various sensing platforms.
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Objective To explore the characteristics of the five circuit phases and six climatic factors(wuyun liuqi,also translated as five circuits and six qi)at birth of the patients with hepatic diseases,and to analyze the correlation between the incidence of hepatic diseases and the characteristics of wuyun liuqi of birthdates of the patients.Methods A total of 5 057 inpatients with hepatic diseases admitted to Guangdong Integrated Chinese and Western Medicine Hospital Affiliated to Guangzhou University of Chinese Medicine from May 2021 to May 2023 were collected,and then the characteristics of wuyun liuqi at birth of the patients were statistically analyzed.Results The incidence of hepatic diseases was closely related to the dominant circuit,dominant qi,guest qi,joining of guest qi with dominant qi,and circuit qi.In terms of the correlation of the prevalence of hepatic diseases with the dominant circuit(regular yearly evolutive phase)of the birthdate,the prevalence was the highest in the population born at gold circuit and was the lowest in the population born at fire circuit;in terms of the dominant qi(regular yearly circuit qi),the prevalence was the highest in the population born at taiyin wet-earth phase and was the lowest in the population born at taiyang cold-water phase;in terms of the guest qi(alterable yearly circuit qi),the prevalence was the highest in the population born at yangming dryness-gold phase and was the lowest in the population born at shaoyin monarch-fire phase;in terms of joining of guest qi with dominant qi,the prevalence was the highest in the population born at clockwise phase of guest qi generating or restricting dominant qi and was the lowest in the population born at adaptive phase of dominant qi and guest qi;in terms of the combination of circuit qi,the prevalence was the highest in the population born in the year of shunhua(qi generating circuit)and was the lowest in the population born in the year of suihui(yearly circuit phase being the same as the circuit qi of the year earthly branch).The differences were all statistically significant(P＜0.05 or P＜0.001).Conclusion The incidence of hepatic diseases is correlated with the dominant circuit,dominant qi,guest qi,joining of guest qi with dominant qi,and combination of circuit and qi at the birthdate of the patients to some extent.
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Objective The study aimed to compare the diagnostic efficacy of QuantiFERON-TB Gold(QFT-TB)detection of specific cellular immune IGRAs in tuberculosis diagnostic laboratory for pulmonary tuberculosis,extrapulmonary tuberculosis and special population samples in vitro,which may provide evidence for clinical diagnosis and treatment.Methods A total of 546 patients with tuberculosis(AFB + 146 cases,AFB-247 cases),117 patients with molecular biology positive tuberculosis(Xpert 69 cases,TB-DNA 48 cases)and 36 patients with histopathological positive were collected from January to July 2023.There were 72 cases of extrapulmonary tuberculosis,276 cases of pleural effusion and 25 cases of ascites.QFT-TB method was used for detection,chi-square test was applied for com-parison between groups,and the methodological evaluation of positive rate and coincidence rate were all compared.Results The positive rates of QFT-TB in pulmonary tuberculosis,extrapulmonary tuberculosis and close contacts were 83.69%,69.44%,and 32.41%,respectively.The coincidence rates of QFT-TB in AFB +,GeneXpert,TB-DNA and pathological confirmed tuberculosis patients were 91.09%,88.40%,81.25%,and 72.22%,respectively.The positive rate of pleural effusion in patients with tuberculous pleurisy was 60.50%,and the uncertainty rate was 29.71%.The positive rate of ascites was 44.00%and the uncertainty was 36.00%.Conclusion QFT-TB test has good value in the auxiliary diagnosis of pulmonary tuberculosis,and has certain reference significance for the diagnosis of extrapulmonary tuberculosis based on the detection of pleural fluids and ascites.
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BACKGROUND:Gold nanoparticles are of great significance in the development of multifunctional transdermal drug delivery systems.Smaller gold nanoparticles can penetrate the dermis through the intercellular pathway,but are limited to their easy agglomeration and colloidal morphology,which makes it difficult to exert effects on low delivery efficiency. OBJECTIVE:To develop an ultrasound-optimized hydrogel delivery system by combining phase change nanodroplets with bio-adhesive hydrogel for percutaneous delivery of gold nanoparticles. METHODS:The ultrasound-responsive nanodroplets loaded with gold nanoparticles were prepared by the emulsion solvent evaporation method and loaded into the polydopamine-modified methylacryloyl gelatin hydrogel to prepare a composite hydrogel scaffold.The structure and chemical composition of the ultrasound-responsive nanogold carrier were characterized.The microstructure,porosity,permeability,rheology,in vitro hemostasis,and antibacterial properties of the composite hydrogel were characterized.The cell compatibility of the hydrogel scaffold was evaluated by live/dead staining,and the optimization effects of low-intensity pulsed ultrasound on the permeability,porosity,and mechanical properties of hydrogel were evaluated. RESULTS AND CONCLUSION:(1)Transmission electron microscopy and ultraviolet-visible spectroscopy proved the successful construction of nanogold carriers.The particle size and potential results demonstrated that the synthesized nanoscaled ultrasonic responsive carrier had good stability.(2)Live/dead cell staining proved that the prepared composite hydrogel scaffold had certain biocompatibility.(3)Scanning electron microscopy exhibited that the prepared composite hydrogel scaffold had a porous network structure,and numerous pores of about 2 μm appeared inside the macropores after the addition of nanodroplets and ultrasonic irradiation.The permeability experiment displayed that low-intensity pulsed ultrasound could optimize the porosity and permeability of hydrogel materials.The hemostatic performance of the composite hydrogel scaffold was better than that of the hemostatic sponge and polydopamine@methylacrylylated gelatin hydrogel scaffold.Under the irradiation of low-intensity pulsed ultrasound,the composite hydrogel scaffolds had good antioxidant effects and antibacterial properties.(4)Thermal imaging results manifested that gold nanoparticles were encapsulated in ultrasound-responsive nanobubbles,and more uniform dispersion could be obtained under ultrasonic excitation.(5)The results of the mechanical property test demonstrated that the storage modulus of the hydrogel increased before and after loading gold nanoparticles-nanodroplets,which showed stronger mechanical properties.The elongation at break was 122%,and the ductility was better than that without gold nanoparticles-nanodroplets(P<0.05).(6)These findings indicate that the composite hydrogel scaffold has good biocompatibility,antibacterial property,oxidation resistance,and hemostatic effect.
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Objective:To evaluate the efficacy of gold microneedle combined with tranexamic acid transdermal administration for the treatment of post-inflammatory hyperpigmentation caused by acne vulgaris.Methods:From January 2022 to October 2022, 36 patients with post-inflammatory hyperpigmentation of facial acne who went to the Laser Medical Center, Air Force Medical Center were treated, including 10 males and 26 females, with 21-42 (28.3±4.8) years of age. The patients were divided into observation group and control group, with 18 cases in each group. The observation group was treated with gold microneedle combined with transdermal administration of tranexamic acid, the control group with 0.5 mm microneedles combined with transdermal administration of tranexamic acid. Both groups were treated for 2 times with an interval of 2 months. The total effective rate, post acne hyperpigmentation index (PAHPI), UV spots, brown spots, pores, skin texture, and adverse reaction were evaluated at 4 weeks after the last treatment.Results:Clinical observation was completed in all 36 patients. In the observation group, 17 cases were effective, accounting for 94.4%, and in the control group, 11 cases were effective, accounting for 61.1%, The curative effect of the observation group was better than that of the control group, and the difference between the two groups was statistically significant ( P<0.05). The differences in PAHPI score, UV spots, brown spots, pores, and skin texture between the two groups were also statistically significant ( t=3.10, 2.52, 2.71, 2.43 and 3.54; P=0.004, 0.017, 0.001, 0.021 and 0.001). The patiens in both groups had different degrees of burning sensation, erythema, edema. dryness and other symptoms after treatment, which were relieved 3 days after treatment without special treatmet. Conclusions:Gold microneedle plus transdermal administrationof tranexamic acid is a safe and effective method for the treatment of post-inflammatory pigmentation caused by acne vulgaris.
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Thrombus is a major factor leading to cardiovascular diseases such as myocardial infarction and stroke. Although fibrinolytic anti-thrombotic drugs have been widely used in clinical practice, they are still limited by narrow therapeutic windows, short half-lives, susceptibility to inactivation, and abnormal bleeding caused by non-targeting. Therefore, it is crucial to effectively deliver thrombolytic agents to the site of thrombus with minimal adverse effects. Based on the long blood circulation and excellent drug-loading properties of human serum albumin (HSA), we employed genetic engineering techniques to insert a functional peptide (P-selectin binding peptide, PBP) which can target the thrombus site to the N-terminus of HSA. The fusion protein was expressed using Pichia pastoris and purified by Ni-chelating affinity chromatography. After being loaded with gold nanoparticles (Au NPs), the fusion protein formed homogeneous and stable nanoparticles (named as PBP-HSA@Au) with a diameter of 17.7 ± 1.0 nm and a zeta potential of -11.3 ± 0.2 mV. Cytotoxicity and hemolysis tests demonstrated the superb biocompatibility of PBP-HSA@Au. Platelet-targeting experiments confirmed the thrombus-targeting ability conferred by the introduction of PBP into PBP-HSA@Au. Upon near-infrared ray (NIR) irradiation, PBP-HSA@Au rapidly converted light energy into heat, thereby disrupting fibrinogen and exhibiting outstanding thrombolytic efficacy. The designed HSA fusion protein delivery system provides a precise, rapid, and drug-free treatment strategy for thrombus therapy. This system is characterized by its simple design, high biocompatibility, and strong clinical applicability. All animal experiments involved in this study were carried out under the protocols approved by the Animal Experiment Ethics Committee of Jiangnan University [JN. No20230915S0301015(423)].
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To evaluate whether the WaveOne Gold and Reciproc single file instrumentation systems, are effective in reducing the microbial load of a mixed biofilm and the cleaning of apical third compared to the Twisted File Adaptive system (multiple- file system). Seventy mesial roots of the first and second molars were included and randomly divided into three experimental groups (n=20, n=10 controls). Biofilms were formed inside canals over 31 days. After instrumentation with the unique file systems, WaveOne Gold and Reciproc and the multiple file system Twisted File Adaptive, using 2.25% sodium hypochlorite as an irrigant in all cases, a count of colony forming units was performed using serial dilutions, cleaning of the apical third was evaluated using scanning electron microscopy. Comparisons amongst groups were made by using parametric and non-parametric statistics, according to a normal or non-normal data distribution, respectively. No significant differences in the reduction of the microbial load after employing a single-file system in comparison to the multiple-file system were found; in addition, the cleaning of the apical third was similar for the three different instrumentation systems. The single-file system is equal in effectiveness compared with the multiple-file system in reducing the microbial load.
Evaluar si los sistemas de instrumentación de lima única, como WaveOne Gold y Reciproc son efectivos para reducir la carga microbiana de un biofilm mixto y la limpieza del tercio apical, comparado con los sistemas de limas múltiples, como Twisted File Adaptive. Setenta raíces mesiales de primeros y segundos molares fueron incluidos y divididos de forma aleatoria en tres grupos experimentales (n=20, n=10 controles). El biofilm fue formado en el interior de los conductos durante 31 días. Después se instrumentó con los sistemas de lima única (WaveOne Gold y Reciproc) y el sistema de limas múltiples Twisted File Adaptive, usando hipoclorito de sodio al 2.5% en todos los casos. El conteo de unidades formadoras de colonias se realizó usando diluciones seriales, la limpieza del tercio apical se evaluó empleando el microscopio electrónico de barrido. La comparación entre grupos se realizó con pruebas paramétricas y no paramétricas, de acuerdo con la distribución normal y no normal de los datos, respectivamente. No hubo una diferencia significativa en la reducción de la carga microbiana después de emplear los sistemas de lima única en comparación a los de limas múltiples, además, la limpieza del tercio apical fue similar en los 3 diferentes sistemas de instrumentación. Los sistemas de lima única son igual de efectivos para reducir la carga microbiana comparados con los sistemas de limas múltiples.
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Background: Chronic obstructive pulmonary disease (COPD) is a chronic disease usually caused by significant exposure to noxious particles and are not fully reversible. COPD represents an important public health challenge that is both preventable and treatable. The aim of this study was to describe the clinico-epidemiological profile of COPD patients and to assess the disease severity using spirometry among respiratory symptomatic in a primary care centre. Methods: A cross sectional study was conducted among the COPD patients attending monthly pulmonology clinic in Urban Health centre, Ettumanoor, Kottayam from June to August 2019. The study comprised of 120 patients with symptoms suggestive of COPD attending the monthly respiratory clinic. Severity of airflow limitation assessed using spirometry results based on GOLD criteria. Clinical and epidemiological data were collected using a semi structured interview schedule. Results: The mean age of the participants were 64� and 51.7% were males. The median duration of COPD symptoms for the study participants was 10 (IQR 11) years and 62.5% were having productive cough with dyspnoea as the major symptom. All males except two were smokers and the mean packyears were 42�years. As per GOLD guidelines 44 (36.7%) had severe disease, 11 (9.2%) had mild, 39 (32.5%) had moderate and 26 (21.7%) had very severe disease. The average forced expiratory volume in one second (FEV1) in study subjects was 54.8�5. Conclusions: In view of the emerging public health risk, COPD need to be diagnosed and managed at the earliest to slow down the progression.
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Chronic obstructive pulmonary disease (COPD) is a progressive inflammatory disease that affects the airways, alveoli, and pulmonary vasculature, leading to irreversible airflow limitation and loss of elastic recoil. This disease is highly prevalent in clinical practice, affecting approximately 10% of adults over 40 years of age, and it is expected to become the third leading cause of death by 2030. The study was conducted on 54 COPD patients diagnosed based on GOLD guidelines. The study observed a statistically significant association between Spirometric staging and the duration of symptoms. The mean value of FEV1/FVC, FEV1 in %, and 6MWD in meters decreased significantly as the grade of GOLD stage increased from stage II to stage III and stage IV. The study showed that COPD is associated with various co- morbidities, including hypertension, diabetes mellitus, hypothyroidism, and coronary artery disease. The study concludes that FEV1, BMI, MMRC grading, and the 6-minute walk test are significant predictors of morbidity among COPD patients. The study recommends early detection and management of COPD to prevent its progression and associated morbidity
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@#ObjectiveTo prepare colloidal gold immunochromatographic test paper for rapid detection of Legionella pneumophila(LP)and test its performance to ensure that it meets the national clinical diagnostic standards.MethodsLP colloidal gold immunochromatographic test paper was prepared based on double antibody sandwich ELISA,and tested for the cross reactivity,anti-interference,sensitivity,hook effect,stability and other aspects.ResultsLP colloidal gold immunochromatography test paper showed no cross reaction with 22 common pathogens in respiratory tract such as Moraxella catarrhalis,and was not affected by internal and external interferences in respiratory tract;The minimum detection limit for LP was 2.00 × 105cfu/mL,with good sensitivity and no hook effect;Under the conditions of accelerated aging at 45 ℃,simulated high temperature transportation and frozen transportation,the repeatability and stability of test paper were not affected,and the stability was good in the same batch and between different batches.ConclusionThe prepared LP colloidal gold immunochromatographic test paper realized rapid detection of LP,which was simple to operate and had good application prospect and popularization value.
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Aims@#The current study was aimed to evaluate the antibacterial activity of biogenic synthesized golden nanoparticles from Sophora flavescens Aiton roots aqueous extract against multidrug-resistant (MDR) clinical bacterial isolates.@*Methodology and results@#The green synthesis of gold nanoparticles (AuNPs) was accomplished using S. flavescens roots aqueous extract and examined using many accepted techniques. The antibacterial activity of S. flavescens extract and the aqueous AuNPs at concentrations (7% and 9%) ppm were investigated against two clinical MDR bacteria, including Gram-positive (Staphylococcus aureus) and Gram-negative bacteria (Pseudomonas aeruginosa). The findings demonstrate inhibitory activity against the selected MDR bacterial isolates for the aqueous extract of S. flavescens and the aqueous AuNPs noted by the significant decrease in the number of bacteria after treatment with highly significant differences (P≤0.01) compared to the untreated control.@*Conclusion, significance and impact of study@#Sophora flavescens root extracts and their biosynthesized AuNPs with antibacterial activity may find broad applications in fighting MDR pathogenic bacteria and therapeutic manufacturing.
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Anti-Bacterial Agents , Sophora flavescensABSTRACT
Objective:To investigate the effectiveness of probe-based near-infrared autofluorescence imaging (NIRAF) of the parathyroid gland.Methods:A total of 71 patients with thyroid cancer eligible for admission from May 4, 2023 to May 26, 2023 were selected, including 42 patients with thyroid cancer enrolled in the Department of Thyroid (hernia), Department of General Surgery, PLA General Hospital, including 29 females and 13 males, with a median age of 41 years, ranging from 21 to 76 years. A total of 29 patients with thyroid cancer were enrolled in the Department of Thyroid Surgery of Guangzhou First People’s Hospital, including 22 females and 7 males. The median age was 42.5 years, ranging from 24 to 72 years. The follow-up period was 1 month.Results:Among them, 196 suspicious parathyroid tissues were identified by the naked eye, and 207 suspicious parathyroid tissues were identified by probe NIRAF technology. Naked eye identification sensitivity, specificity and accuracy were 84.86%, 56% and 81.89%. The sensitivity, specificity and accuracy of parathyroid tissue identification by probe NIRAF were 92.66%, 80.00% and 90.53%, which were better than that of naked eye identification, and had a good coincidence rate with the results of immunocolloidal gold test or intraoperative freezing pathology (Kappa=0.61, P<0.001) . Conclusion:The probe-based NIRAF technique has a good ability to identify parathyroid tissue.
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Objective:To investigate the effect of gold microneedle and subcutaneous apocrine excision in the treatment of bromidrosis and the occurrence of postoperative complications.Methods:From July 2019 to November 2020, 42 patients (13 males and 29 females; 16-47 years old, average 23 years old) were treated with plastic surgery in the First Affiliated Hospital of Xinjiang Medical University, 20 patients received gold microneedle treatment, and 22 patients received minimally invasive surgery (subcutaneous apocrine excision surgery). The patients were followed up for 3-6 months after operation, and the severity of preoperative bromidrosis, postoperative curative effect and occurrence of postoperative complications were compared between the two groups.Results:Eighteen cases were effective in the gold microneedle group, accounting for 90%; 22 cases were effective in the minimally invasive surgery group, accounting for 100%; the difference between the two groups was statistically significant ( P<0.05). There was a negative correlation between the grade of bromidrosis before operation and the curative effect after operation in the gold microneedle group, and the correlation coefficient was not statistically significant in the minimally invasive operation group ( P>0.05). Complications occurred in 4 cases in the gold microneedle group, accounting for 20.0%; 10 cases presented with complications in the minimally invasive surgery group, accounting for 45.5%; the difference was statistically significant ( P<0.05). Conclusions:The therapeutic effect of gold microneedle is lower than that of minimally invasive surgery, and the higher the degree of bromidrosis, the worse the curative effect. The postoperative complication rate of gold microneedle treatment for bromidrosis is lower than that of minimally invasive surgery.
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Objective:To evaluate the clinical value of NG-Test Carba5 for rapid detection of carbapenemases produced by carbapenem-resistant Enterobacteriaceae (CRE) strains. Methods:A total of 1 210 CRE strains were collected during 2018-2022 from 77 hospitals in 21 provinces of China and were subjected to NG-Test Carba5 for rapid detection of carbapenemase. The whole genome sequencing (WGS) analysis was referenced as the gold standard method.Results:Overall, the NG-Test Carba5 demonstrated excellent performance in detection of five kinds of carbapenemases [Klebsiella pneumoniae carbapenemase (KPC), New Delhi metallo-β-lactamase (NDM), imipenemase metallo-β-lactamase (IMP), Verona integron-encoded metallo-beta-lactamase (VIM) and oxacillinase-48-type carbapenemases(OXA-48)] from CRE strains, with a sensitivity of 98.47% (1 161/1 179), specificity of 100% (31/31), and positive predictive value of 100% (1 161/1 161). The sensitivity for detection of NDM, IMP, OXA and VIM reached 100% (307/307), and 97.70% (763/781) for KPC. For 11 strains carrying blaKPC-25, blaKPC-78, or blaKPC-93, NG-Test Carba5 reported positive KPC detection (11/11). For strains carrying blaKPC-33 and blaKPC-77, however, NG-Test Carba5 delivered negative results. Additionally, for those strains co-producing two or three kinds of carbapenemases, NG-Test Carba5 was able to report all of the targets with a sensitivity of 100% (91/91). Conclusions:NG-Test Carba5 showed excellent performance in rapid and accurate detection of carbapenemases from CRE strains. Nonetheless, for those strains with negative results, some other phenotypic and genotypic methods should be implemented alongside to avoid missing targets.
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Lateral flow immunoassay (LFIA) is a rapid detection technique that allows researchers to move the antigen-antibody reaction from a test tube or laboratory vessel to a test strip. Due to the chromatographic effect of the test strip, the solution would move to a specified direction based on the test and complete the whole antigen-antibody specific reaction. A qualitative judgment can be made with the naked eye by observing the color change of the reagent strip at a specific location. Because of its advantages of being fast, simple, specific, inexpensive, and requiring no specialized personnel, LFIA is now widely used in medical testing, food quality monitoring, environmental monitoring, agriculture and animal husbandry. A major bottleneck for the development of LFIA technology is the hook effect. This paper summarizes the current methods, means and research progresses to combat the hook effect, hoping to provide a strong technical reference for researchers to design test strips, select suitable nanoparticles, and achieve quantitative LFIA detection.
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Objective:To evaluate the efficacy and safety of gold micrhenedle radiofrequency and other photoelectric methods in the treatment of facial acne depression scar by using a meta-analysis.Methods:From January 2015 to August 2022, gold microneedles and radio frequence for treatment of facial acne depression scar of randomized controlled trial were retrieved from CNKI, Wanfang Database, VIP, China Biomedical Literature Service System, PubMed database, Cochrane Library and Embase database, including 12 papers. There were 6 Chinese and 6 English literatures, with a sample size of 612 cases.Results:Gold microneedling radio-frequency showed better efficacy in the treatment of facial acne depression scar ( P<0.05). After subgroup analysis, the effective rate in the observation group was higher than that in the control group after 4 treatments, and the difference was statistically significant ( P<0.05). Clinical acne scarring assessment scale, pain score and recovery time had statistically significant difference ( P<0.05). Conclusions:Gold microneedling radiofrequency alone or in collaboration with other photoelectricity in the treatment of acne depression scar has short rest period, slight pain, and obvious improvement of scar effect. However, the improvement effect on icicle depression scar is limited.