Objective To investigate the effect of microinvasive thread embedding on vertebral artery blood flow in cervical spondylotic vertebral arteriopathy and further ascerta in that microinvasive thread embedding is a new long-acting acupuncture method for treating cervical spondylotic vertebral arteriopathy.Method Sixty patients meeting the inclusion criteria were randomly allocated to acupuncture and thread embedding groups.The acupuncture group received conventional acupuncture and the thread embedding group, microinvasive thread embedding.The symptoms and function were scored using theEvaluation Scale for Cervical Vertigoand bilateral vertebral artery blood flow was measured using transcranial Doppler after one day and three weeks of treatment.Result The symptoms of vertigo improved somewhatin the thread embedding group at one day after treatment compared with before treatment (P<0.05).At three weeks after treatment,vertigo,neck-shoulder pain, abilities in daily living and working and the total score improved in both groups of patients (P<0.05), and vertigo and abilities in daily living and working improved significantly in the thread embedding group compared with the acupuncture group (P<0.05). Bilateralvertebral artery Vm increased significantly in both groups of patients after treatment(P<0.05) and increased more significantly in the thread embedding group than in the acupuncture group after one day and three weeks of treatment (P<0.05). PIof the rightvertebral arterydecreased somewhat in both groups after three weeks of treatment (P<0.05) but there was no statistically significant difference between the twogroups(P>0.05). The total efficacy rate was 83.3% in the thread embedding group, which was higher than 60.0% in the acupuncture group (P<0.05).Conclusion Microinvasive thread embedding can improve the symptoms, vertebral artery blood flow and the quality of life in patients with cervical spondylotic vertebral arteriopathy.

OBJECTIVE：To compare chemical composition types and ginsenoside content of Panax notoginseng flowers with different growing years ，and to explore the effect of growing year on the quality of P. notoginseng flowers. METHODS ：Each 10 batches of biennial，triennial and quadrennial P. notoginseng flower were collected and determined by HPLC. The determination was performed on Shim-pack GIST C 18 column with mobile phase consisted of acetonitrile- 0.05％ phosphoric acid solution （gradient elution ）at the flow rate of 0.5 mL/min. The column temperature was set at 30 ℃，and the detection wavelength was set at 203 nm. The sample size was 20 μL. Similarity Evaluation System of TCM Chromatogram Fingerprint was used to establish the fingerprint of 30 batches of samples ，identify the diagnostic components and analyze the similarity. Cluster analysis was conducted by using SPSS 22.0 software. The contents of ginsenoside Rb 1，Rb2，Rb3 and Rc in 30 batches of P. notoginseng flower with different growing years were determined by above HPLC . The quality control analysis was conducted by using SPSS 22.0 software. RESULTS：Established fingerprint showed good precision ，stability and reproducibility. There were good linear relationship （R2＞ 0.999），quantitative limit ，precision，stability，repeatability and accuracy of the content determination method . Six common components as ginsenoside Rb 1， Rb2， Rb3 and Rc were Δ 基金项目：云南省地方高校联合专项（No.KX182504Y） identified in P. notoginseng flower with different growing ＊助教，硕士。研究方向：中药资源开发 。电话：0876-2684947。 E-mail：wshuangzaiqiang@163.com years by fingerprint ；ginsenoside Rd was identified in triennial # 通信作者 ：研究员，硕士。研究方向 ：中药资源开发 。电话： P. notoginseng flower. The similarities of the fingerprints 0876-8883731。E-mail：gaomingju@163.com among 10 batches of biennial ，triennial and quadrennial P. 中国药房 2020年第31卷第8期 China Pharmacy 2020Vol. 31 No. 8 ·969· notoginseng flower were 0.881，0.952 and 0.945，respectively. The similarity among samples with different growing ye ars was more than 0.817. Thirty batches of P. notoginseng flower could be grouped into 4 categories，the category Ⅱ was quadrennial samples，the category Ⅲ was triennial samples ，while the categories Ⅰ and Ⅳ were mostly biennial samples and a small number of triennial and quadrennial samples. RSDs of 4 ginsenosides contents and their total contents in biennial samples were 8.90％-21.43％ and total saponin contents were 11.65％-17.76％，respectively. RSDs of 4 ginsenosides contents and their total contents in triennial samples were 6.45％-14.23％，and total saponin contents were 15.74％-19.30％. RSDs of 4 ginsenosides contents and their total contents in quadrennial samples were 7.50％-18.86％，and total saponin contents were 15.92％-20.16％. The results of quality control analysis showed that biennial samples mainly distributed in the areas of Ⅱ and Ⅲ ；triennial and quadrennial samples mainly distributed in the areas of Ⅰ and Ⅱ ；the order of ginsenosides content was Ⅰ ＞Ⅱ ＞Ⅲ. CONCLUSIONS：Chemical components of P. notoginseng flower with different growing years are generally close in types but there still a re some differences ，among which the content of ginsenosides in biennial samples is lower ，fluctuates more ，and the overall quality is slightly poor ；the content of ginsenosides in triennial and quadrennial samples is higher ，fluctuates less ，and the overall quality is higher and tends to be stable.

Objective To verify the reliability of TLD-based quality audit for radiotherapy dosimetry of medical electron accelerator in non-reference condition by monitoring the dose variations from electron beams with different field sizes and 45° wedge and the dose variations from photon beams with different field sizes and source-skin distance.Methods Both TLDs and finger ionization chambers were placed at a depth of 10 cm in water to measure the absorbed dose from photon beams,and also placed at the depth of maximum dose from electron beams under non-reference condition.TLDs were then mailed to National Institute for Radiological Protection,China CDC for further measurement.Results Among the 70 measuring points for photon beams,58 points showed the results with a relative error less than ± 7.0％ (IAEA's acceptable deviation:± 7.0％) between TLDs and finger ionization chambers measurements,and the percentage of qualified point numbers was 82.8％.After corrected by P,value,62 points were qualified and the percentage was up to 88.6％.All of the measuring points for electron beams,with the total number of 24,presented a relative error within ± 5.0％ (IAEA's acceptable deviation:± 5.0％) between TLDs and finger ioization cylindrical chambers measurements.Conclusions TLD-based quality audit is convenient for determining radiotherapy dosimetric parameters of electron beams in non-reference condition and can improve the accuracy of the measuring parameters in connection with finger chambers.For electron beams of 5 MeV ＜ E0 ＜ 10 MeV,the absorbed dose parameters measured by finger ionization chambers,combined with TLD audit,can help obtain the precise and reliable results.

ObjectiveTo evaluate the clinical efficacy of micro-invasive thread-embedding in treating allergic rhinitis.Method Sixty eligible patients were randomized into a control group and a thread-embedding group. Thecontrol group was intervened by Budesonide nasal spray, while the thread-embedding group was by micro-invasive thread-embedding in addition to the nasal spray. The therapeutic efficacy was evaluated after 2-month treatment.ResultThe symptom score and symptom-sign global score were decreased significantly in both groups after intervention (P<0.05), the improvement of stuffy nose and running nose and the global score of the thread-embedding group were significantly superior to that of the control group (P<0.05); the quality of life scores were markedly improved in both groups after intervention (P<0.05), and the improvement of non-nasal/eye symptoms, actual symptoms, and nasal symptoms, as well as the global score in the thread-embedding group were superior to that in the control group (P<0.05); the total effective rate was 96.7% in the thread-embedding group, significantly higher than 66.7% in the control group (P<0.01).ConclusionMicro-invasive thread-embedding can produce a content efficacy in treating allergic rhinitis, and can enhance the quality of life.

OBJECTIVETo explore the relationship between the needling sensation of catgut embedding therapy and the depth of embedded catgut so as to improve the safety of the needle insertion and catgut implantation of the therapy.

METHODSTwenty healthy adults were selected. Under the ultrasound, the structure of the cervical Jiaji (EX-B 2) was observed. In the ultrasound guidance, the catgut was embedded. The two-dimensional imaging method was adopted to observe the anatomic structure and the procedure of needle insertion at the cervical Jiaji (EX-B 2). The high-frequency ultrasound was used to collect the images at Jiaji (EX-B 2) of C5 and determine the depths from the skin surface to the different layers of the point. Additionally, the visual analogue scale (VAS) was adopted to score the needling sensations when the needle inserted at different layers. The persistent sensation duration in the local area was followed continuously.

RESULTSUnder the ultrasound, the anatomic structure and tissue layers of cervical Jiaji (EX-B 2) were displayed clearly. The difference was significant in the average depth from the skin surface to the subcutaneous tissue, trapezius, splenius capitis, semispinalis capitis, semipinalis cervicis, multifidus and vertebral arch between the males and females (all P<0. 01). During the needle insertion, the sensations were apparently different when the implantation went to different layers. The qi arrival presented when the catgut was embedded to the trapezius, splenius capitis, semispinalis capitis, semipinalis cervicis and multifidus. But the distending pain was the most significant when in the myofascial. Commonly, the embedded catgut 2. 5 cm in length may be implanted deeply to the multifidus and the local needling sensation lasted averagely for (72. 0 ± 10. 2) h. Conclusion Under the ultrasound guidance, the depth of embedded catgut is clearly displayed at cervical Jiaji (EX-B 2). The needle insertion and the implanted material are visible, and the relationship between qi arrival and the layer of needle insertion is determined. The accuracy and safety of minimally invasive catgut embedding therapy is improved in the treatment of cervical spondylosis.

Acupuncture Points ; Acupuncture Therapy ; Adult ; Aged ; Catgut ; utilization ; Female ; Humans ; Male ; Middle Aged ; Neck Muscles ; anatomy & histology ; diagnostic imaging ; Qi ; Sensation ; Spondylosis ; diagnostic imaging ; therapy ; Ultrasonography

OBJECTIVETo explore the relationship between the therapeutic effect of minimally invasive embedding therapy and the implanted depth for cervical spondylosis.

METHODSNinety patients of cervical spondylosis of nerve root type were randomized into a shallow-layer embedding group (subcutaneous layer), a middle-layer embedding group (semispinalis capitis muscle layer) and a deep-layer embedding group (multifidus muscle layer), 30 cases in each one. Jiaji (EX-B 2) of C5 and C6 on the affected side and Dazhui (GV 14) were selected. Under the guide of ultrasound, the catgut was implanted to the corresponding tissue layers. The treatment was given once a week, continuously for 3 weeks in the three groups. The symptoms and physical signs were observed before and after treatment. The pain rating index (PRI), visual analogue scale (VAS) and present pain index (PPI) were assessed. The neck disability index (NDI) was compared.

RESULTSThe score of symptoms and function after treatment was increased apparently in the deep-layer embedding group (P < 0.05), which was increased more apparently as compared with those in the shallow-layer embedding group and the middle-layer embedding group (both P < 0.05). PRI, VAS and PPI after treatment were all reduced apparently as compared with those before treatment in the deep-layer embedding group and the middle-layer embedding group (all P < 0.05), which were reduced more remarkably than the shallow-layer embedding group (all P < 0.05). After treatment, the scores of NDI in the deep-layer embedding group and the middle-layer embedding group, were reduced apparently as compared with those before treatment (both P < 0.05), and that in the deep-layer embedding group was reduced more remarkably as compared with the shallow-layer embedding group and the middle-layer embedding group after treatment (both P < 0.05).

CONCLUSIONIn the acupoint embedding treatment of cervical spondylosis of nerve root type, the efficacy is different apparently in terms of the implantation depth. The deep-layer implantation, meaning to the multifidus muscle layer is more conductive to the treatment of cervical spondylosis.

Acupuncture Points ; Acupuncture Therapy ; Adult ; Aged ; Catgut ; Female ; Humans ; Male ; Middle Aged ; Pain Measurement ; Spondylosis ; diagnostic imaging ; therapy ; Treatment Outcome ; Ultrasonography

Objective To investigate the relationship of pancreatic β-cell function and insulin resistance with microalbuminuria in a cross -sectional study of patients with type 2 diabetes.Methods A total of 524 partici-pants with type 2 diabetes were recruited in this cross -sectional study.All subjects'height,weight,waist circumfer-ence and blood pressure were measured.Venous blood samples were drawn to measure fasting plasma glucose (FPG), fasting lipids,glycated hemoglobin A1c (HbA1c),fasting C -peptide (FPC).24h -urine was collected to measure urinary albumin excretion rate (UAER).Homeostasis model assessment of pancreatic β-cell function (HOMA -B) and insulin resistance (HOMA -IR)were estimated using fasting plasma C -peptide.According to HOMA -B quar-tile,the subjects were divided into four groups,including q1 -q4.According to HOMA -IR,the subjects were also divided into four groups,including Q1 -Q4.We assessed the crude associations across quartiles of these data with demographic and clinical parameters using a nonparametric test for trend across ordered groups (trend using Stata software).Multivariable logistic regression analysis was performed to assess the relationships of pancreatic β-cell function and insulin resistance with microalbuminuria in patients with type 2 diabetes.Results Trend test showed that UAER gradually reduced with increase of HOMA -B.The UAER values in subjects with q1,q2,q3 and q4 were 8.92(5.53 -28.65),8.55(5.52 -20.95),7.57(4.79 -19.83)and 7.84(5.23 -14.38)μg/min,respectively, and the trend was statistically significant(z =-2.1,P <0.05 ).With HOMA -IR increasing,UAER gradually increased.The UAER values in subjects with Q1,Q2,Q3 and Q4 were 6.73(4.85 -16.52),8.61 (5.2 -20.37), 8.31(4.88 -27.04),8.75(6.03 -25.21)μg/min,respectively,and the trend was also statistically significant(z =2.41,P <0.05).Multivariable logistic regression analysis showed that subjects with the highest quartile of HOMA -B had lower possibility of microalbuminuria than patients with the lowest quartile of HOMA -B (adjusted OR q4 vs. q1 =0.39,95% CI:0.20 -0.76,Wald =7.59,P =0.006).Subjects with the highest quartile of HOMA -IR had higher risk of microalbuminuria than those with the lowest quartile of HOMA -IR (adjusted OR Q4 vs.Q1 =2.00, 95% CI:1.08 -3.72,Wald =4.84,P =0.028).Conclusion Insulin resistance is associated with an increased prevalence of microalbuminuria in type 2 diabetes,while improved pancreatic β-cell function is linked to decreased rates of microalbuminuria for those patients.

DNA marked-assisted selection of medicinal plants accelerated the breeding and promotion of new cultivars, and guaranteed the healthy development of Chinese medicinal materials industry. The first disease-resistant cultivar of notoginseng, namely "Miaoxiang Kangqi 1", served as the object of study. We evaluated the Kangqi's resistance of seeds, seedlings and root against the pathological bacteria (Fusarum oxysporum) of root rot. Compared to the traditional cultivars, the disease index of notoginseng seeds declined by 52.0% after inoculation for seven days; the death rate of seedlings and disease index of root respectively decreased by 72.1% and 62.4% after inoculation for 25 days. Additionally, the growth inhibition ratio of notoginseng seeds and seedlings declined after inoculation. The seeds, seedlings and roots of "Miaoxiang Kangqi 1" showed significantly resistant to root rot. The evaluation of disease-resistance of Kangqi provided the basis for the popularization of new cultivar and guaranteed the favoring conduct of notoginseng pollution-free cultivation.

Objective:To investigate the effect of calcification on the diagnostic accuracy of the quantitative flow fraction (CT-QFR) derived from coronary CT angiography (CCTA).Methods:A total of 244 patients (471 coronary arteries) who underwent both CCTA and invasive coronary angiography (ICA) for suspected coronary artery disease between 2019 and 2021 were included in the study. All analyses were conducted at the vessel level using CCTA and ICA images, and the morphological and hemodynamic parameters of all enrolled vessels were assessed. The group was divided into severe calcification (206 cases) and non-severe calcification (265 cases) based on whether the arc of lesion calcification was greater than 180°. Subsequently, the two groups were evaluated to the degree of coronary stenosis, the length of the target lesion, the length of calcification, the ratio of the length of calcification, the remodeling index of calcification, the quantitative flow fraction (QFR), the CT-QFR, and the distribution of the involved vessels. Pearson correlation analysis and the Bland-Altman scatterplot were used to analyze the correlation and consistency between CT-QFR and QFR values from different subgroups. The benchmark for coronary ischemia was QFR≤0.80, and the criteria for diagnosing coronary ischemia were CT-QFR≤0.80 and luminal stenosis≥50%, respectively, and the effectiveness of CT-QFR for coronary ischemia was evaluated by plotting the ROC curves in various calcification subgroups.Results:The degree of luminal stenosis, lesion length, calcification length ratio, and calcification remodeling index were substantially higher in the severely calcified group than in the non-severely calcified group (all P<0.05). The results of the Pearson correlation analysis demonstrated a significant association between CT-QFR and QFR in both the severe and non-severe calcification groups ( r=0.85, 95%CI 0.81-0.88, P<0.001; r=0.91, 95%CI 0.89-0.93, P<0.001); in contrast, the Bland-Altman analysis indicated that the CT-QFR and QFR measurements in the severely calcified group exhibited a high level of agreement, with a mean difference of -0.01 (95% limits of agreement -0.22 to 0.20) for measurements in the severely calcified group and 0 (95% limits of agreement -0.15 to 0.16). The specificity, positive predictive value, negative predictive value, and area under the curve (AUC) for the diagnosis of ischaemic lesions by CT-QFR and CCTA alone were lower in the severely calcified group than in the non-severely calcified group, but the difference in AUC between the two groups for CT-QFR was not statistically significant ( P>0.05), and the difference in AUC for the morphological assessment of CCTA was statistically significant. The diagnostic effectiveness of CCTA alone was considerably worse than the specificity and AUC of CT-QFR for the various calcified subgroups for the diagnosis of ischemic lesions (all P<0.001). Conclusions:Severe calcification somewhat affected the diagnosis of ischaemic lesions by CT-QFR, but there was still a high correlation and concordance between CT-QFR and QFR within the severely calcified group, and the diagnostic efficacy was significantly better than that assessed by CCTA morphology alone.

Objective To verify the leaf positioning accuracy of multi-leaf collimator (MLC) in intensity modulated radiation therapy (IMRT) by using radiochromic films to provide references for IMRT quality control.Methods Medical linear accelerators of different designs,owned by 7 first-class hospitals at grade-3 in Hubei,were selected for this verification study.Five strip picket fence pattern was created by treatment planning system (TPS).Each strip was 0.6 cm wide with a 3 cm strip separation.MLC leaf positions,positioning bias and opening widths were then measured with EBT2 radiochromic films.Results According to IAEA standards,the film-measured and TPS planned MLC leaf position difference was ±0.5 mm.The difference of MCL strip position of No.5 and No.7 accelerator was 0.7 and-1.0 mm,respectively,not in line with the IAEA standards.The difference of film-measured MLC leaf position between each pairs and all pairs of leaves of 7 accelerators were all within ± 0.5 mm,in line with the IAEA requirements.As required by IAEA,the difference of opening width of MLC leave of each pair relative to the averaged widths of all pairs should be within ±0.75 mm.The filem-measured values from 7 accelerators ranged from-0.6 to 0.5 mm,all in line with the IAEA standards.Standard deviation of opening width of all leaves were required to be within 0.3 mm.The measured values from 7 accelerators ranged from 0.1 to 0.2 mm,in line with the IAEA standard.Conclusions The use of EBT2 radiochromic films to verify MLC leaf positioning accuracy is an important means of quality control owing to its simplicity and high measurement accuracy.It is recommended for verification use at a large scale.