Object To observe the differences of Isodon amethystoides (Benth.) C. Y. Wu et Hsuan, I. nervosa (Hemsl) Kudo and I. macrocalyx (Dunn) Kudo from different regions in their UV spectra, to make the applicability of the method of Detrended Correspondence Analysis (DCA) clear in the comparison of Chinese medicinal materials based on the UV spectra. Methods The UV spectra of the 15 samples of I. amethystoides, I. nervosa and I. macrocalyx from different regions and organs were obtained, based on the indices of wavenumber absorbance, the differences of 15 UV spectra were compared by DCA. Results(1) the UV spectra of I. amthystoides from different regions were very different; (2) the samples of I. macrocalyx (or I. nervosa) from the same region were rather similar in their UV spectra; (3) there were resemblances among I. nervosa, I. macrocalyx and I. amethystoides in their UV spectra.; (4) the difference of UV spectra between the stems and leaves were obvious. Conclusion The above results indicate: (1) the medicinal effects of I. amethystoides from different regions may be very different; (2) the stems and leaves of I. amethystoides are of different medical effects; (3) I. macrocalyx and I. nervosa could be considered as the substitutes of I. amethystoides. It is practical to apply DCA on the basis of UV spectra to compare the chemical differences of plant samples.

Objective To evaluate the efficacy of interventional MRI in radiofrequency ablation (RFA)of breast cancer.Methods 12 patients with breast carcinoma proven by core-needle biopsy-were enrolled in this study.Among them, 7 patients were in phase Ⅳ(6 with lung metastasis, 1 with bone metastasis),and 5 patients were in phase Ⅲ(all of them rejected the surgical operation because of various contraindications,including severe hypertension,diabetes mellitus,liver or kidney dysfunction,and advanced age).Moreover, all of the tumor size could not be further shrunk after medical treatment (such as 4-6 cycles chemotherapy, endocrine therapy or targeted therapy).Additionally,breast lesions were still remained to be confirmed by imaging examination and biopsy pathology.Then the tumor and surrounding breast tissue were ablated with radiofrequency,followed by clinical follow-up and imaging examination after 1, 3, 6 and 12 months.Results All the patients completed 18 times RFA treatment.MRI showed that all the tumor lesions were necrotic, blood supply was disappeared and therewas no enhancement.Radiographic examination showed the original breast lesions were fuzzy or disappeared.All the tumors were achieved complete remission (CR) examined by imaging,and the effective rate was 100%.All the postoperative patients survived 1 year according to the follow-up data.Conclusion Interventional MRI is safe and effective method in the radiofrequency ablation of breast cancer.

Objective To investigate the effects of morroniside on the expression of vascular endothelial growth factor (VEGF) and fi-broblast growth factor-2 (FGF-2) in rat cortex after focal cerebral ischemia-reperfusion. Methods 30 male Sprague-Dawley rats were ran-domly divided into sham group, model group, morroniside-low group (30 mg/kg), morroniside-middle group (90 mg/kg) and morroni-side-high group (270 mg/kg). Middle cerebral arteries of rats were occluded for 30 minutes with Longa's method and re-perfused. The ex-pression of VEGF and FGF-2 in the ischemic ipsilateral cortex was detected with Western blotting 7 days after reperfusion. Results The ex-pression of both VEGF and FGF-2 increased in the ischemic ipsilateral cortexin in all the ischemic groups compared with the sham group (P<0.05). The expression of VEGF further increased in a dose-dependent manner in all the morroniside groups compared with that of model group (P<0.05), and the expression of FGF-2 increased in the morroniside-high group (P<0.001). Conclusion Morroniside could increase the expression of VEGF and FGF-2 after ischemia-reperfusion, which might promote angiogenesis.

Objective To explore the effects of morroniside on the expression of CD34 in ipsilateral cortex of rats after focal cerebral isch-emia-reperfusion. Methods 45 male Sprague-Dawley rats were divided into sham group (n=9), ischemia group (n=9), and morroniside groups (low, medium and high dosage groups, n=9). The middle cerebral artery were occluded for 30 minutes, and reperfused. Morroniside was administered intragastrically once a day at dose of 30 mg/kg, 90 mg/kg, 270 mg/kg after operation. The expression of CD34 in the isch-emic ipsilateral cortex were detected with immunohistochemistry (n=6) and Western blotting (n=3) 7 days after operation. Results The ex-pression of CD34 increased in the ischemia group compared with the sham group, and further increased in the morroniside groups of high dos-age compared with the ischemia group (F>14.865, P<0.001). Conclusion Morroniside could increase the expression of CD34 in the ischemic ipsilateral cortex after ischemia-reperfusion in rats, which may promote the angiogenesis and neurogenesis after ischemia.

Objective To evaluate the diagnostic value of circulating tumor cells(CTCs) in prostate cancer (Pca) through studying the relationship between CTCs and Gleason scores and pathological TNM stage in Pca patients. Methods A total of 238 patients including 161 Pca patients as cancer group, 35 male patients with benign prostatic diseases as benign group and 42 male with non-prostate disease as control group, who were treated in our hospital from July 2016 to January 2018,were enrolled. Venous blood of every patient was collected and CTCs were enriched and identified by immunocytochemistry CD45 capturing leukocyte and fluorescence in situ hybridization with chromosome 8 (CEP8-FISH). Cells displaying CD45-/DAPI+/CEP8>2 were characterized as CTCs. One-way ANOVA was used to exam the correlations of the number of CTCs with Gleason scores and pathological TNM stage. Results CTCs ≥2 were detected in 74.53％(120/161) of Pca patients and 20.00％(7/35)of benign prostatic diseases patients and 7.14％(3/42)of control group (χ2=79.605,P<0.05). In group Gleason scores 6, the numbers of CTCs were 2.00 ± 2.42, the ratios of CTCs≥5 and tetraploid were 13.33％ (2/15)and 26.67％(4/15) respectively. In 7 scores group, the results were 3.14±2.68,17.72％(14/79) and 34.18％(27/79)respectively;In 8 scores group, the results were 3.57 ± 2.70, 33.33％(7/21)and 42.86％ (9/21)respectively; In 9 scores group, these three results were 4.65±4.41, 43.48％(20/46) and 45.65％(21/46)respectively. The numbers of CTCs in the≤pT2b (20), pT2c(27), pT3a(19), pT3b(16)and≥pT4(12) groups were 2.25±2.45, 3.56±2.79, 4.05±3.47, 4.69±2.12 and 5.17±3.21 respectively. The ratios of CTCs≥5 were 25.00％(5/20), 25.93％(7/27), 26.32％(5/19), 50.00％(8/16) and 58.33％ (7/12)respectively. The proportions of tetraploid were 20.00％(4/20), 25.93％ (7/27), 31.58％(6/19), 50.00％(8/16) and 58.33％(7/12) respectively. There were significant differences between CTC and Gleason scores (F=3.200, P<0.05)and pathological stage (F=2.673, P<0.05). The ratios of CTCs≥5 increased with the increase of Gleason scores (χ2=11.592, P<0.05). Conclusions The detection of CTCs could be used for the differential diagnosis of Pca and benign prostatic disease. There were notable correlations between the numbers of CTCs and Gleason scores and pathological stage in Pca patients, especially between CTCs≥5 and Gleason scores.

Objective To investigate the association between serum 25(OH)D3 and high sensitive C -reac-tive protein (hs-CRP),tumor necrosis factor -alpha (TNF-α),interleukin-6 (IL-6) inflammatory markers in non-obese patients with type 2 diabetes mellitus (T2DM).Methods From June 2015 to September 2015,in this cross-sectional study,120 non-obese patients with T2DM(female in 58 cases,male in 62 cases) in Taiyuan Central Hospital were selected as T2DM group,and 120 non-obese patients with T2DM and 96 healthy subjects ( control group) were recruited.The serum concentrations of glucose,HbA1c,insulin,25( OH) D3 and inflammatory markers including TNF-α,IL-6 and hs-CRP were measured.A homeostatic model of insulin resistance (HOMA-IR) was also evaluated.The clinical and biochemical characteristics of T 2DM were observed in the group of vitamin D deficien-cy group,vitamin D insufficiency group and vitamin D normal group.And the relativities were analyzed between it with hs-CRP,TNF-α,IL-6,HOMA-IR,INF,FBG,BMI,WHR,and so on.The relativities were observed between 25(OH)D3 with all the factors.Results The mean serum concentration of 25(OH)D3 in the non -obese T2DM group was (10.65 ±3.55)ng/mL,which was significantly lower than (18.44 ±5.21)ng/mL in the normal control group (t＝-6.84,P ＝0.012).The levels of serum TNF -αand IL -6 in the T2DM group were (15.51 ± 4.87)ng/L and (18.12 ±4.13) ng/L,respectively,which were significantly higher than those in the control group [(8.99 ±2.54)ng/L,(8.89 ±2.07)ng/L](t＝7.95,10.04,P＝0.017,0.007).The proportions of deficiency,insufficiency and normal of vitamin D in T2DM patients were 60.83%,31.67%and 7.50%,respectively .The levels of TNF-αand IL-6 in the serum 25(OH) D3 deficiency group were significantly higher than those in the normal 25(OH)D3 group [(17.93 ±4.94)ng/L vs.(10.30 ±4.52)ng/L,F＝6.897,P＝0.026;(20.14 ±4.99)ng/L vs. (16.39 ±5.06)ng/L,F＝10.589,P＝0.017].There was a significant correlation between serum 25(OH)D3 and HOMA-IR(r＝-0.041;P＝0.030),TNF-α(r＝-0.229;P＝0.040) and IL -6 levels (r＝-0.299;P＝0.032),but there was no significant correlation with inflammatory factor hs -CRP and fasting blood glucose. Conclusion Vitamin D deficiency is common in patients with T2DM,and systemic chronic inflammation may also play an important role in the pathogenesis of T 2DM.This study shows that vitamin D may play an important role in the pathogenesis of insulin resistance and chronic systemic inflammatory response,an important pathogenesis of T2DM.

Recombinant human interferon α2b(rhIFNα2b)is widely used as an antiviral therapy agent for the treatment of hepatitis B and hepatitis C.The current identification test for rhIFNα2b is complex.In this study,an anti-rhIFNα2b nanobody was discovered and used for the development of a rapid lateral flow strip for the identification of rhIFNα2b.RhIFNα2b was used to immunize an alpaca,which established a phage nanobody library.After five steps of enrichment,the nanobody I22,which specifically bound rhIFNα2b,was isolated and inserted into the prokaryotic expression vector pET28a.After subsequent purification,the physicochemical properties of the nanobody were determined.A semiquantitative detection and rapid identification assay of rhIFNα2b was developed using this novel nanobody.To develop a rapid test,the nanobody I22 was coupled with a colloidal gold to produce lateral-flow test strips.The developed rhIFNα2b detection assay had a limit of detection of 1 μg/mL.The isolation of I22 and successful construction of a lateral-flow immunochromatographic test strip demonstrated the feasibility of performing ligand-binding assays on a lateral-flow test strip using recombinant protein products.The principle of this novel assay is generally applicable for the rapid testing of other com-mercial products,with a great potential for routine use in detecting counterfeit recombinant protein products.

The study was a retrospective study. The clinical data of 866 patients with IgA nephropathy (IgAN) in Beijing Anzhen Hospital, Capital Medical University from March 2010 to March 2021 were analyzed, to investigate the clinical pathology and renal prognosis of IgAN patients with intrarenal arteriolosclerosis, and to preliminarily explore whether abnormal activation of complement system is involved in the injury of arteriolosclerosis. The patients were divided into renal arteriolar lesions group and non-renal arteriolar lesions group according to the renal histopathology, and the differences of clinical pathological manifestations, prognosis between the two groups were compared. The results showed that, compared with the non-renal arteriolar lesions group ( n=236), IgAN patients in the renal arteriolar lesions group ( n=630) had higher proportions of hypertension and malignant hypertension, higher levels of urinary albumin-creatinine ratio, 24-hour urine protein quantification and serum uric acid, lower estimated glomerular filtration rate, and more severe MEST-C lesions of the Oxford classification (all P < 0.05). Cox regression analysis results showed that intrarenal arteriolosclerosis was the independent risk factor affecting the progression of IgAN to ESRD ( HR=6.437, 95% CI 2.013-20.585, P=0.002). Renal histopathology showed that the deposition of complement C3c on the wall of intrarenal arterioles in the renal arteriolar lesions group ( n=98) was stronger than that in non-renal arteriolar lesions group ( n=18, P < 0.05). IgAN patients with renal arteriolosclerosis present with serious clinical and pathological manifestations, and renal prognosis. Abnormal activation of complement system may be involved in the pathogenesis of intrarenal arteriolosclerosis.

Objective:To investigate the clinical characteristics, treatment and prognosis of newly-treated patients with primary central nervous system lymphoma (PCNSL).Methods:Clinical data of 117 newly-treated PCNSL patients who were admitted to the First Hospital of Jilin University, the Fifth Medical Center of Chinese PLA General Hospital, Harbin Medical University Cancer Hospital, and Cancer Hospital of Chinese Academy of Medical Sciences & Peking Union Medical College from August 2009 to February 2018 were retrospectively analyzed. The patients' age, sex, Eastern Cooperative Oncology Group (ECOG) physical status (PS) score, pathological type, involvement of deep brain tissue, number of lesions, cerebrospinal fluid protein concentration, International Extranodal Lymphoma Study Group (IELSG) score, Memorial Sloan Kettering Cancer Center (MSKCC) score, treatment strategy, and response after the first-line therapy were analyzed using univariate and multivariate Cox proportional hazards models to identify the independent influencing factors for progression-free survival (PFS) and overall survival (OS) of PCNSL patients. Kaplan-Meier method was used for survival analysis.Results:In 117 newly-treated PCNSL patients, 59 cases (50.4%) presented with increased intracranial pressure or focal neurological symptoms at diagnosis; there were 65 cases (55.6%) with single lesions and 52 cases (44.4%) with multiple lesions; 1 patient (0.9%) had lymphoma of T-cell origin, and 116 cases (99.1%) had diffuse large B-cell lymphoma (DLBCL). Among 95 evaluable patients, 41 patients (43.2%) achieved complete remission (CR), 20 patients (21.1%) achieved partial remission (PR), 16 patients (16.8%) achieved stable disease (SD), and 18 patients (18.9%) had progressive disease (PD). In 117 patients with median follow-up of 66.0 months (95% CI 57.9-74.1 months), the median PFS and OS were 17.4 months (95% CI 11.5-23.3 months) and 45.6 months (95% CI 20.1-71.1 months), respectively. The 2-, 3- and 5-year PFS rates were 41.2%, 28.6% and 19.3%, and OS rates were 63.7%, 52.4% and 46.3%, respectively. Univariate Cox regression analysis showed that baseline high-risk MSKCC score group was an adverse prognostic factor for PFS ( P = 0.037), and the first-line chemotherapy with ≥4 cycles of high-dose methotrexate (HDMTX), HDMTX in combination with rituximab, ≥4 cycles of rituximab in combination with HDMTX, and achieving CR or ≥PR after the first-line treatment reduced the risk of disease progression and prolonged the PFS time (all P <0.01); age >60 years old, ECOG-PS score of 2-4 points, elevated cerebrospinal fluid protein concentration, high-risk IELSG score, and high-risk MSKCC score were adverse prognostic factors for OS, and ≥4 cycles of HDMTX and achieving CR or ≥PR after the first-line treatment were favorable factors for OS. Multivariate Cox regression analysis verified that rituximab in combination with HDMTX (yes vs. no: HR = 0.349, 95% CI 0.133-0.912, P = 0.032) and achieving ≥PR after the first-line chemotherapy (yes vs. no: HR = 0.028, 95% CI 0.004-0.195, P < 0.001) were independent favorable factors for PFS; age >60 years old (>60 years old vs. ≤60 years old: HR = 10.878, 95% CI 1.807-65.488, P = 0.009) was independent unfavorable factor for OS, while ≥4 cycles of HDMTX treatment (≥4 cycles vs. <4 cycles: HR = 0.225, 95% CI 0.053-0.947, P = 0.042) was independent favorable factor for OS. Conclusions:The older the PCNSL patients at initial treatment, the worse the prognosis. Intensive and continuous treatment for achieving deeper remission may be the key for improving the outcome of PCNSL patients.