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BACKGROUND@#The thoracic small biopsy sampling procedure including transbronchial forceps lung biopsy (TBLB) and endobronchial ultrasound transbronchial needle aspiration (EBUS-TBNA) can be accompanied by rapid on-site evaluation (ROSE) of sample material to provide immediate feedback for the proceduralist. The present study aims to investigate the supplemental effect of ROSE smear samples for lung cancer molecular test.@*METHODS@#In a retrospective study, 308 patients admitted to our hospital from August 2020 to December 2022 undergoing diagnostic TBLB and EBUS-TBNA with ROSE and subsequently diagnosed as non-small cell lung cancer (NSCLC) were analyzed. The matched formalin-fixed paraffin-embedding (FFPE) tissue section and ROSE smears for tumor cellularity were compared. DNA yields of smears were determined. Real-time polymerase chain reaction (PCR) and next-generation sequencing (NGS) were performed on adequate smear samples.@*RESULTS@#ROSE smear samples were enriched in tumor cells. Among 308 biopsy samples, 78 cases (25.3%) exhibited inadequate FFPE tissue sections, whereas 44 cases (14.3%) yielded adequate smear samples. Somatic mutations detected in the FFPE tissue section samples were also detected in the matching adequate smear sample.@*CONCLUSIONS@#ROSE smear samples of the thoracic small biopsies are beneficial supplemental materials for ancillary testing of lung cancer. Combined use of cytology smear samples with traditional FFPE section samples can enhance the detection rate of informative mutations in patients with advanced NSCLC. We recommend that the laboratory could further evaluate the ROSE cell smears of the patient when FFPE tissue sections are inadequate, and that adequate cell smears can be used as a supplemental source for the molecular testing of NSCLC.
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Humans , Carcinoma, Non-Small-Cell Lung/pathology , Lung Neoplasms/pathology , Rapid On-site Evaluation , Retrospective Studies , Molecular Diagnostic Techniques , Endoscopic Ultrasound-Guided Fine Needle Aspiration/methodsABSTRACT
BACKGROUND@#Airway stents has been widely used in airway stenosis and fistula, yet clinical date of airway stents in reestablishment a complex airway is insufficient. The aim of this study is to evaluate the efficacy and safety to combine the silicon stent and the metal stent in reestablishment a complex malignant airway.@*METHODS@#Patients with non-operable complex malignant airway stenosis and fistula were recruited in this study. Silicon Y stent combined with covered metal stent (Hybrid stent) were inserted to reestablishment the airway. Clinical outcomes and complications were observed over six months.@*RESULTS@#A total of 23 silicon Y stents and 25 covered metal stents were inserted in 23 patients. Nineteen of 23 (19/23, 82.6%) patients felt a immediately relieving of current symptoms. The mean duration of stents placement in patients was (153.43±9.14) days. The modified British Medical Research Council, Karnofsky Performance Status and Performance Status scale were improved significantly after stenting. A total of 12 patients living with stent at 6 months. Others dead of tumor progression. There were no death or immediate complications related to hybrid stenting implication.@*CONCLUSIONS@#Hybrid stenting proved to be useful and was well-tolerated in the management of complex malignant airway stenosis and fistula.
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OBJECTIVE:To establish the quality standard for Prostatitis capsules. METHODS:TLC method was performed to qualitatively identify Pseudostellaria heterophylla,Acortw tatarinowii,Sargentodoxa cuneata,Rubia cordifolia and Vaccaria segeta-lis in the preparation. HPLC method was adopted to determine the content of leonurine in the preparation. The determination was performed on Agilent Eclipse XDB-C18 column with mobile phase consisted of methanol-0.025 mol/L potassium dihydrogen phos-phate(pH adjusted to 2.5)(24 : 76,V/V)with phosphoric acidat the flow rate of 1.0 mL/min. The detection wavelength was set at 277 nm,and column temperature was 30 ℃. The sample size was 10 μL. RESULTS:The TLC spots of P. heterophylla,A. tatari-nowii,S. cuneate,R. cordifolia,and V. segetalis were clear and well-separated without interference from negative control. The lin-ear range of leonurine were 4.05-81.00 μg/mL(r=0.9999). RSDs of precision,stability and reproducibility tests were all lower than 2.0%. The recovery was 98.47%-103.83%(RSD=2.04%,n=9). CONCLUSIONS:Established standard can be used for quali-ty control of Prostatitis capsules.
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OBJECTIVE:To optimize the extraction technology of caffeic acid in Laggera alata,and establish a method for its content determination. METHODS:The caffeic acid in L. alata was extracted by reflux extraction. Using extraction content as inves-tigation index,orthogonal test was used to investigate the effects of ethanol volume fraction,material-liquid ratio and extraction time on caffeic acid,and the extraction technology conditions were optimized. HPLC was adopted to determine the content of caffe-ic acid in 10 batches of L. alata from different areas,using caffeic acid as reference substance,at wavelength of 320 nm. RE-SULTS:The optimized extraction technology conditions were as follows as ethanol volume fraction of 10%,material-liquid ratio of 1 : 40 and extraction time of 3 h. Under the condition,verification test for caffeic acid was carried out,and the average content of caffeic acid in L. alata was 0.5211 mg/g(RSD=1.18%,n=3). The content of caffeic acid in 10 batches of L. alata from dif-ferent areas ranged in 0.3752-0.7766 mg/g,and the content showed great differences. CONCLUSIONS:The content of caffeic ac-id in L. alata is related to area and harvest season. The caffeic acid extration by optimized technology shows good reproducibility;and the established method for content determination is stable and feasible.
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This study was aimed to explore the curative effect of Zhuo-Du-Qing (ZDQ) particles on diabetic cystopa-thy (DCP) based on the theory of turbid toxin. A total of 100 DCP patients were randomly divided into the control group with 47 cases and the treatment group with 53 cases. Mecobalamin tablets was given in the control group. And ZDQ particles were given to the treatment group. The treatment course was 3 months. The observation was made on the bladder residual urine (BRU), clinical manifestation integral, hemodynamic indexes, HOMA-IR and HbA1c before and after the treatment. The results showed that compared with pretreatment, the BRU, clinical manifestation integral, hemodynamic indexes, and HOMA-IR were significantly reduced (P < 0.01). Compared with the control group, the BRU, clinical manifestation integral, hemodynamic indexes, and HOMA-IR were also significantly reduced (P <0.01). The effective rate in the treatment group was 81.1%, which was significantly higher than 59.6% in the control group (P< 0.05). There were no obvious changes on the blood routine examination, urine routine examination, stool routine examination, liver function, renal function, electrocardiogram and so on before and after treatment. It was con-cluded that the treatment of DCP with ZDQ particles was safe and effective. To remove toxin and descend turbid may be another effective treatment method for DCP. The occurrence and development of DCP were closely related to the turbid toxin.
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Objective To investigate the effect of folic acid combined with Helicobacter pylori (Hp) eradication therapy on chronic atrophic gastritis.Methods From December 2009 to March 2011 at the First Affiliated Hospital of Nanjing Medical University,184 patients with endoscopic and pathological diagnosis of chronic atrophic gastritis (90 Hp positive and 94 Hp negative) were selected.Hp positive patients were divided into group A and group B.Forty-three patients in group A were treated with standard triple Hp eradication therapy and follow by folic acid therapy for three months.Forty-seven patients in group B and Hp negative patients received three months of folic acid therapy.The clinical symptoms of each group were scored before treatment,one month after folie acid therapy and three months after folic acid therapy and analyzed by t test. Patients of each group received gastroscopy before treatment and three months after medicine withdrawal. Endoscopic scores,pathological scores and t test were recorded.The serum levels of pepsinogen ( Ⅰ,Ⅱ ) and gastrin 17 in venous blood of 55 Hp negative patients were detected by enzyme-linked immunosorbent assay (ELISA) method before treatment and three months after medicine withdrawal.Results Compared with three months therapy (1.15 ± 0.03),after one month folic acid therapy (1.55 ± 0.04) was statistically significant in clinical symptoms score of all patients (t =8.18,P＜0.01).By the end of therapy,clinical symptom score of group A (1.06 ± 0.04) was lower than that of group B (1.56 ±0.08),and the difference was significant (t=6.00,P＜0.01).There was significant difference in endoscopic scores of all patients between before treatment (1.57±0.95) and after treatment (1.00±0.76,t=11.12,P＜0.01).The differences in each pathological score of all patients (inflammatory scoring,active scoring,atrophy scoring,intestinal metaplasia scoring,atypical hyperplasia degree scoring) were significant between before treatment and after treatment (t=5.51,6.90,7.53,6.34,2.90,respectively,all P＜0.01).The serum level of pepsinogen Ⅰ before treatment of 55 Hp negative patients [(1.03±0.19) nmol/L] was lower than that after treatment [(2.24±0.33) nmol/L],and the difference was statistically significant (t=3.19,P＜0.01).After treatment the level of gastrin 17 [(0.86±0.05) nmol/L] was higher than that before treatment [(0.47±0.05) nmol/L],and the difference was statistically significant ( t =5.33,P＜ 0.01 ).Conclusion Folic acid in combination with Hp eradication therapy can be favorable to atrophic gastritis,which may promote the secretion of pepsinogen and gastrin.