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1.
Chinese Journal of Preventive Medicine ; (12): 728-731, 2023.
Article in Chinese | WPRIM | ID: wpr-985464

ABSTRACT

An epidemiological investigation was conducted on a cluster epidemic of COVID-19 in the vaccinated population in Beijing in 2022, and serum samples were collected from 21 infected cases and 61 close contacts (including 20 cases with positive nucleic acid in the isolation observation period). The results of antibody detection showed that the IgM antibody of two infected persons was positive, and the IgG antibody positive rates of patients who were converted, not converted to positive and infected persons were 36.84% (7/19), 63.41% (26/41) and 71.43% (15/21), respectively. About 98.78% of patients had been vaccinated with the SARS-CoV-2 inactivated vaccine. The positive rate of IgG antibody in patients immunized with three doses of vaccine was 86.00% (43/50), which was higher than that in patients with one or two doses [16.12% (5/31)]. The antibody level of M (Q1, Q3) in patients immunized with three doses was 4.255 (2.303, 7.0375), which was higher than that in patients with one or two doses [0.500 (0.500, 0.500)] (all P values<0.001). The antibody level of patients who were vaccinated less than three months [7.335 (1.909, 7.858)] was higher than that of patients vaccinated more than three months after the last vaccination [2.125 (0.500, 4.418)] (P=0.007). The positive rate and level of IgG antibody in patients who were converted to positive after three doses were 77.78% (7/9) and 4.207 (2.216, 7.099), respectively, which were higher than those in patients who were converted after one or two doses [0 and 0.500 (0.500, 0.500)] (all P values<0.05).


Subject(s)
Humans , COVID-19 , SARS-CoV-2 , Disease Outbreaks , COVID-19 Vaccines , Immunoglobulin G , Antibodies, Viral
2.
China Pharmacy ; (12): 2162-2166, 2022.
Article in Chinese | WPRIM | ID: wpr-941462

ABSTRACT

OBJECTIV E To develop the infor mation-based pharmaceutical care pathway of anticoagulant therapy in patients with atrial fibrillation and improve the efficacy and safety of treatment for them. METHODS The“anticoagulant pharmaceutical care”module was developed on the basis of medical intelligent and decision system. Patients with atrial fibrillation were taken pharmaceutical care in the whole anticoagulant treatment by evaluating the thromboembolism and bleeding risks ,pre-reviewing antithrombotic prescriptions ,monitoring efficacy and drug interactions ,and warning adverse reactions. RESULTS A total of 1 228 patients receiving anticoagulant therapy were enrolled. It was found after analysis of their doctor ’s orders that 9.27% of the patients adjusted the improper antithrombotic therapies ,3.99% modulated treatments according to the effects of potential drug interactions or the risk of adverse reactions ,and 70.29% of the wrong prescriptions were intervened successfully. After the information-based pharmaceutical care ,the anticoagulation treatment rate increased from 88.73% to 97.40%,the rate of patients ’achievements to warfarin’s international normalized ratio in hospital increased from 38.64% to 66.67%,and the incidence of serious bleeding events decreased from 2.94% to 0.37% (P<0.05). CONCLUSIONS The information-based pharmaceutical care path of anticoagulant therapy achieved comprehensive ,efficient and accurate management of patients with atrial fibrillation ,and improved the rationality ,effectiveness and safety of anticoagulant therapy.

3.
Journal of Experimental Hematology ; (6): 367-372, 2022.
Article in Chinese | WPRIM | ID: wpr-928722

ABSTRACT

OBJECTIVE@#To summarize the clinical and laboratory characteristics of patients with acute myeloid leukemia (AML) with inv(16)/t(16;16) (p13.1;q22), and to analyze the risk factors affecting the prognosis of the patients.@*METHODS@#AML patients with inv(16)/t(16;16) (p13.1;q22) and/or CBFβ-MYH11+ admitted to the Department of Hematology, The First Affiliated Hospital of Soochow University from January 1, 2008 to October 30, 2019 were retrospective analyzed, the clinical and laboratory indicators, as well as treatment plans and efficacy evaluations of the patients were all recorded. Furthermore, related factors affecting the overall survival (OS) and event-free survival (EFS) of the patients were analyzed.@*RESULTS@#Among 151 AML patients with inv(16)/t(16;16) (p13.1;q22) and/or CBFβ-MYH11+, the percentage of additional chromosomal abnormalities was about 27.8%, and the most common additional chromosomal abnormality was +22 (33/151, 21.8%), followed by +8 (11/151, 7.3%). There were 112 patients with perfect NGS examination, and the result showed the most common accompanying gene mutations were KIT mutation (34/112, 30.4%) and FLT3 mutation (23/112, 20.5%). Univariate analysis showed that factors affecting EFS included: NE≤0.5×109/L (P=0.006) and combined K-RAS mutation (P=0.002); Factors affecting OS included: Age≥50 years old (P<0.001) and NE≤0.5×109/L (P=0.016). Multivariate analysis showed that NE≤0.5×109/L (P=0.019) was the risk factors affecting OS. The proportion of bone marrow eosinophilia (BME)≥10.00% (P=0.029) was the risk factors affecting EFS.@*CONCLUSION@#The prognosis for those newly diagnosed AML patients who were of advanced age, the high proportion of bone marrow eosinophils, K-RAS mutations, and agranulocytosis is poor. The treatment plans can be adjusted in the early stage to improve the prognosis of such patients.


Subject(s)
Humans , Middle Aged , Chromosome Inversion , Leukemia, Myeloid, Acute/genetics , Myosin Heavy Chains/genetics , Oncogene Proteins, Fusion , Prognosis , Retrospective Studies
4.
Chinese Journal of Biotechnology ; (12): 2026-2032, 2022.
Article in Chinese | WPRIM | ID: wpr-927837

ABSTRACT

The National Life Science Competition for College Students has been held for five times, which has become the largest and most influential life science competition in China. The competition is designed to follow principles of "interest-driven, scientific exploration, process evaluation and ability improvement". The holding of the competition has effectively improved the training quality of life science talents in colleges and universities. This paper summarized the development, organization and management of the competition as well as the organizational characteristics of the competition. It may serve as a guidance for colleges and universities to organize students to participate in the competition, and improve the fostering of talents in the field of life sciences in colleges and universities nationwide.


Subject(s)
Humans , Biological Science Disciplines , Curriculum , Quality of Life , Students , Universities
5.
Journal of Experimental Hematology ; (6): 772-780, 2021.
Article in Chinese | WPRIM | ID: wpr-880146

ABSTRACT

OBJECTIVE@#To summarize the clinical and Laboratory characteristics of patients with multiple myeloma (MM) and analyze the prognostic factors.@*METHODS@#Two hundred MM patients were retrospectively analyzed for the following parameters, including peripheral blood, bone marrow morphology, cytogenetics, clinical staging, and response to the chemotherapy in order to summarize related factors affecting overall survival (OS). The prognostic factors were also analyzed.@*RESULTS@#200 patients with MM were divided into 3 groups according to bone marrow plasma cell percentage (BMPC%) in bone marrow smears: <10% group (74 cases, 37.0%), 10%-50% group (75 cases, 37.5%), >50% group (51 cases, 25.5%). Compared with the other two groups, patients in BMPC%<10% group were characterized by lower clinical staging levels, lower rates of 13q14 deletion and t(11;14) positive, better response to chemotherapy and favorable three-year OS rate. The univariate analysis showed that prognostic factors indicating favorable outcome as evaluated by OS included age≤55 years old, BMPC%<10%, WBC<7.5×10@*CONCLUSION@#The clinical characteristics are different among MM patients with different BMPC% in bone marrow smears at initial diagnosis, and prognostic analysis shows that the BMPC% in bone marrow smears has an effect on OS rate. BMPC% in bone marrow smears at initial diagnosis, age, WBC, Hb, response to the fourth chemotherapy are also the main factors impacting the prognosis of patients.


Subject(s)
Humans , Middle Aged , Disease-Free Survival , Hematopoietic Stem Cell Transplantation , Multiple Myeloma/therapy , Prognosis , Retrospective Studies , Transplantation, Autologous , Treatment Outcome
6.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 110-115, 2021.
Article in Chinese | WPRIM | ID: wpr-906214

ABSTRACT

Objective:To discuss clinical effect of Zhuyu Zhixuetang to chronic endometritis (CE) with syndrome of Qi deficiency and blood stasis and to study improvement effect to pregnancy outcome. Method:One hundred and forty-four patients were randomly divided into two groups, patients in control group were 72 cases and in observation group were 72 cases. In control group, 66 patients completed the therapy because of 4 falling off or missing visit and 2 eliminated, and in observation group, 65 patients completed the therapy because of 3 falling off or missing visit and 5 eliminated. In two groups. anti-infection treatment was gicen to patients. Patients in control group got Fuke Qianjin Pian, 6 tablets/time, 3 times/day. Patients in observation group got Zhuyu Zhixuetang, 1 dose/day. The treatment was continued for 3 months and the follow up was recorded for 6 months. Before and after treatment, changes of menstrual volume, period and cycle were recorded. And hysteroscopy and color Doppler ultrasound of vagina were made, and endometrial morphology and endometrial receptivity were evaluated [endometrial thickness, resistance index (RI), pulsation index (PI) and blood flow index (FI)] were evaluated, and pathology of endometrial were tested. And scores of syndrome of Qi deficiency and blood stasis were graded, levels of interleukin-1 <italic>β</italic> (IL-1<italic> β</italic>), IL-6 and tumor necrosis factor-<italic>α</italic> (TNF-<italic>α</italic>) and T-lymphoid subsets (CD3<sup>+</sup>, CD4<sup>+</sup>, CD8<sup>+</sup>) in peripheral blood were measured. Pregnancy and miscarriage were recorded and the safety was evaluated. Result:After treatment, menstrual volume, menstrual period, cycle and complete normal rate of menstruation in observation group were all higher than those in control group (<italic>P</italic><0.05). Endometrial thickness and FI were more than those in control group (<italic>P</italic><0.01), RI and PI were lower than RI and PI in control group (<italic>P</italic><0.01). And compared with control group, levels of IL-1<italic>β</italic>, IL-6, TNF-<italic>α</italic> and CD8<sup>+ </sup>were less (<italic>P</italic><0.01). And levels of CD3<sup>+</sup>, CD4<sup>+</sup> and CD4<sup>+</sup>/ CD8<sup>+</sup> were higher than the data in control group (<italic>P</italic><0.01). During 6 months follow-up, pregnancy rate in observation group was 46.97% (31/66) was higher than 27.69% (18/65) in control group (<italic>χ</italic><sup>2</sup>=5.197, <italic>P</italic><0.05). Total effective rate of endometrial morphology was 96.97% (64/66) higher than 86.15% (56/65) in control group (<italic>χ</italic><sup>2</sup>=4.981, <italic>P</italic><0.05). Total effective rate endometrial pathology was 95.45% (63/66) higher than 84.62% (55/65) in control group (<italic>χ</italic><sup>2</sup>=4.304, <italic>P</italic><0.05). Total effective rate of comprehensive clinical effect was 93.94% (62/66) higher than 81.54% (55/65) in control group (<italic>χ</italic><sup>2</sup>=4.696, <italic>P</italic><0.05). There was no adverse reactions related to traditional Chinese medicine. Conclusion:Zhuyu Zhixuetang can regulate menstruation, relieve clinical symptoms, improve endometrial morphology under hysteroscopy, regulate systemic and local immune inflammatory response, improve CP, thus improve pregnancy outcome, with better comprehensive effect and safety.

7.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 195-200, 2021.
Article in Chinese | WPRIM | ID: wpr-905881

ABSTRACT

Unstable carotid plaque is an independent risk factor for serious cerebrovascular events including stroke, making it considered as an intervention target for the primary and secondary prevention of cardiovascular diseases. Professor ZHU Liang-chun is a national distinguished master of traditional Chinese medicine (TCM) who is adept at treating difficult miscellaneous diseases with insects. He believes that the unstable carotid plaque falls into the category of “vessel impediment” in TCM according to the disease location and characteristics. The core pathogenesis of unstable carotid plaque lies in asthenia in origin and sthenia in superficiality, with spleen-kidney deficiency as the root cause and combined phlegm and blood stasis as the manifestations. He has pointed out that both phlegm and blood stasis should be emphasized in the treatment. In addition to the commonly used herbs for strengthening spleen, removing stasis, and resolving phlegm, the insects with strong effects of searching wind and dredging collateral can be added as appropriate to strengthen the power of removing stasis and dredging collateral. According to the pathogenesis of this disease, he develops the Qutan Tongluo Wenbanfang, which has been confirmed by modern pharmacological research to be efficient in resisting inflammation, regulating endothelial cell functions, lowering lipids, adjusting metabolism, and improving blood circulation, thereby ameliorating the related biological processes of atherosclerosis, suppressing atherosclerosis, and stabilizing plaques. As proved by clinical practice, Qutan Tongluo Wenbanfang helps to reduce blood lipids and reduce the area of unstable carotid plaque, indicating that it deserves clinical promotion.

8.
Shanghai Journal of Preventive Medicine ; (12): 992-2020.
Article in Chinese | WPRIM | ID: wpr-873833

ABSTRACT

Objective To understand species, population density, and seasonality of rodents in Fangshan District of Beijing and provide the information for prevention and control of rodents and rodent-borne diseases. Methods The rodents were captured by using the trap at-night method in Mukezhai, Xianfenggu, Liushilu, Gushanzhai, Wanjingxiangou.The rodents pieces were identified and the density was calculated. Results Totally 4 665 traps were placed and 268 rodents were captured during 2016-2017.Among the seven identified species, the proportion of Apodemuspeninsulae was the highest (31.0%).The density of rodents was higher in primary forest area (7.29%) and edge area (6.10%) than in living area (2.94%)(P < 0.05).The density of rodents was 6.43% in 2016, and 4.44% in 2017(P < 0.05).The highest density (10.7%) was found in September. Conclusion The rodent species with highest density was Apodemuspeninsulae that can transmit Yersinia pestis.Comprehensive prevention measures should be taken to reduce the rodent density for controlling rodent-borne diseases.

9.
International Eye Science ; (12): 1216-1221, 2020.
Article in Chinese | WPRIM | ID: wpr-822246

ABSTRACT

@#AIM:To investigate the risk factors of diabetic retinopathy(DR)in diabetic patients and the influence on the biological structures of anterior segment.<p>METHODS: This was a cross-sectional study. Patients with type 2 diabetes who had been treated in ophthalmology department of Shanghai Tongren Hospital were invited to participate in this study during January 2018 to September 2018. To evaluate clinical characteristics, each subject completed diabetes related history questionnaire, laboratory examination(blood glucose, glycosylated hemoglobin, blood lipid), eye examination(vision, intraocular pressure, slit lamp examination, corneal topography, fundus photography, OCT). According to the severity of retinopathy, patients were classified to three groups: group 0: none DR, group 1: mild and moderate NPDR, group 2: severe NPDR and PDR. Chi-square test, <i>t</i>-test and variance analysis were used to analyze the differences between groups, and risk factors of DR were studied through Logistic regression analysis. Then analyzed whether these risk factors would affect the biological structures of the anterior segment, such as refractive index, corneal thickness, corneal curvature and anterior chamber depth.<p>RESULTS: Totally 219 diabetic patients participated in the survey, and 56 patients(25.6%)were diagnosed with DR. The age of DR patients \〖(66.84±15.13a)(group 1)/(65.45±12.83a)(group 2)\〗 was higher than that of patients without DR(59.59±14.61a)(<i>P</i><0.05). The course of diabetes in DR patients \〖(13.69±10.22a)(group 1)/(15.23±8.22a)(group 2)\〗 was higher than that in patients without DR(9.21±7.92)a(<i>P</i><0.05).The proportion of diabetic nephropathy in DR patients \〖(28.0%)(group 1)/(32.3%)(group 2)\〗 was higher than that those without DR(14.1%)(<i>P</i><0.05).The proportion of DR patients treated with insulin \〖(64.0%)(group 1)/(83.9%)(group 2)\〗 was higher than those without DR(44.2%)(<i>P</i><0.05). Logistic regression analysis showed that the course of diabetes, diabetic nephropathy and insulin were the risk factors of DR(<i>OR</i>>1, <i>P</i><0.05). All of the above risk factors will significantly reduce the corrected vision of DR patients.The corneal thickness of patients with DR(550.82±34.73)μm was greater than those without DR(542.37±33.32)μm(<i>P</i><0.05). The anterior chamber depth of patients with diabetes over 10a(2.49±0.43)mm was less than those with diabetes less than 10y(2.68±0.40)mm(<i>P</i><0.05).<p>CONCLUSION: The course of diabetes, diabetic nephropathy and insulin use were the risk factors for DR. Patients with long duration of diabetes had a shallower anterior chamber depth.

10.
China Journal of Chinese Materia Medica ; (24): 3238-3244, 2020.
Article in Chinese | WPRIM | ID: wpr-828452

ABSTRACT

Chinese herbal medicine decoction pieces(CHMDP), one of the main forms of traditional Chinese medicine(TCM) in clinic, have been widely used. However, the irrational use is increasingly serious due to the lack of the indicators for judging the rational use of CHMDP in medical institutions and the codes and standards for the clinical use of CHMDP. In order to regulate the rational clinical use of CHMDP, improve the clinical efficacy and ensure the drug safety for the patients, clinical pharmaceutical experts and clinical medical experts from 40 third-grade class-A hospitals nationwide were organized to give the "expert consensus on clinical application of CHMDP" in terms of prescription writing, combined use of drugs, use of special drugs, and drug use for special population. Detailed analysis and argumentation were conducted in accordance with the laws and regulations, Chinese Pharmacopoeia 2015 edition, Chinese Pharmacopoeia Code Notice for Clinical Use of Medicine, Administrative Regulations for Prescriptions, Administrative Specifications for Hospital Prescription Review(interim), and Chinese Traditional Medicine Prescription Format and Writing Specifications, as well as relevant project findings.


Subject(s)
Humans , Consensus , Drugs, Chinese Herbal , Medicine, Chinese Traditional , Prescriptions , Reference Standards
11.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 228-234, 2019.
Article in Chinese | WPRIM | ID: wpr-802090

ABSTRACT

At present,traditional Chinese medicine(TCM) has attracted more and more attention from the international community.The demand for TCM is increasing in the world.The hidden dangers of potential quality and safety of TCM are also becoming increasingly prominent.Aflatoxin contamination has become one of the important factors affecting the safety of Chinese herbal medicines,and it will fundamentally affect human health and life safety.A variety of methods are used to reduce aflatoxins,however,there are few suitable methods that can be widely used in the cost-effective and large-scale promotion of Chinese herbal medicines.Therefore,it is of great significance to continue to study measures to solve the pollution problems of Aspergillus flavus and its toxins.This article summarizes the hazards and contamination status of aflatoxin,the prevention and control of the growth of A. flavus, and the measures for reducing aflatoxin,and looks ahead to the future prevention and control of A. flavus and its toxins,aiming at providing ideas for the pollution problem of A. flavus and its toxin,to ensure the quality of Chinese herbal medicines,so as to ensure clinical safety medication.

12.
Acta Pharmaceutica Sinica ; (12): 2100-2105, 2019.
Article in Chinese | WPRIM | ID: wpr-780295

ABSTRACT

The structural composition of the surface fungal community of commercially Platycladi semen was analyzed to reveal the surface fungal biodiversity and structural differences. Platycladi semen was collected from Henan, Shandong and Hong Kong, their DNA was extracted, ITS fragments in DNA were amplified by PCR. Miseq was sequenced on Illumina Hiseq 2500 platform after the PCR products were qualified for quality inspection. The sequence OTU cluster was obtained and bioinformatics analysis was carried out. Microbial communities were not observed in the eyes of the Platycladi semen in the three regions. Sequencing results showed that the surface microbial community had high biodiversity, but there were significant differences in species composition. Seven samples o Platycladi semen obtained 345 947 valid sequences, which were divided into 267 OTUs, 3 phylums. 18 classes, 40 orders, 82 families, 120 genus, 191 species fungi. At the genus level, Aspergillus is the dominant species, accounting for the highest proportion, reaching (93.36 ± 6.01)%. Seven samples were contaminated by Aspergillus flavus, and the pollution levels were 14.58%, 15.98%, 17.64%, 16.44%, 0.97%, 23.39% and 18.86%. Except sample No. 5, Aspergillus cibarius was the most abundant, the other six samples were Aspergillus niger, Aspergillus fumigatus and Aspergillus flavus as the core microflora. By analyzing the diversity of fungi distribution in different habitats, we can fully understand the fungi on the surface of Platycladi semen, lay a foundation for early risk warning of Aspergillus flavus contamination and its aflatoxin contamination, and provide a theoretical basis for the quality and safety of Platycladi semen.

13.
The World Journal of Men's Health ; : 186-198, 2019.
Article in English | WPRIM | ID: wpr-742359

ABSTRACT

PURPOSE: This study investigated the role of natriuretic peptide receptor 2 (NPR2) on cell proliferation and testosterone secretion in mouse Leydig cells. MATERIALS AND METHODS: Mouse testis of different postnatal stages was isolated to detect the expression C-type natriuretic peptide (CNP) and its receptor NPR2 by quantitative reverse transcription polymerase chain reaction (RT-qPCR). Leydig cells isolated from mouse testis were cultured and treated with shNPR2 lentiviruses or CNP. And then the cyclic guanosine monophosphate production, testosterone secretion, cell proliferation, cell cycle and cell apoptosis in mouse Leydig cells were analyzed by ELISA, RT-qPCR, Cell Counting Kit-8, and flow cytometry. Moreover, the expression of NPR2, cell cycle, apoptosis proliferation and cell cycle related gene were detected by RT-qPCR and Western blot. RESULTS: Knockdown of NPR2 by RNAi resulted in S phase cell cycle arrest, cell apoptosis, and decreased testosterone secretion in mouse Leydig cells. CONCLUSIONS: Our study provides more evidences to better understand the function of CNP/NPR2 pathway in male reproduction, which may help us to treat male infertility.


Subject(s)
Animals , Humans , Male , Mice , Apoptosis , Blotting, Western , Cell Count , Cell Cycle , Cell Cycle Checkpoints , Cell Proliferation , Enzyme-Linked Immunosorbent Assay , Flow Cytometry , Germ Cells , Guanosine Monophosphate , Infertility, Male , Lentivirus , Leydig Cells , Natriuretic Peptide, C-Type , Polymerase Chain Reaction , Receptors, Peptide , Reproduction , Reverse Transcription , RNA Interference , S Phase , Testicular Diseases , Testis , Testosterone
14.
Journal of Peking University(Health Sciences) ; (6): 797-804, 2019.
Article in Chinese | WPRIM | ID: wpr-941891

ABSTRACT

OBJECTIVE@#To investigate inhibitory activities of a homogenous anti-human epidermal growth factor receptor 2 (HER2)-antibody drug conjugate (ADC) on the proliferation of nine tumor cell lines with different levels of HER2 expressions, and its activities on the tumor growth of five xenograft mouse models.@*METHODS@#The HER2 expression levels of BT-474, Calu-3, MCF-7, MDA-MB-231, MDA-MB-468, SK-BR-3, SK-OV-3, HCC1954, NCI-N87 tumor cell lines were measured using QIFI KIT. For the in vitro anti-proliferation assay, serial diluted anti-HER2-ADC, ado-trastuzumab emtansine, AS269, pAF-AS269 and paclitaxel were added to the seeded cells, and after 72 or 96 hours of incubation, the cell proliferation was analyzed. For the in vivo activity, 5-6 weeks old mice were inoculated with four HER2 positive tumor cell lines HCC1954, BT-474, SK-OV-3, NCI-N87 or one HER2 negative tumor cell line MDA-MB-468. Different amounts of anti-HER2-ADC, ado-trastuzumab emtansine, trastuzumab, paclitaxel and phosphate buffered saline control were injected after the tumor volume reached a certain size, then the tumor growth inhibition was analyzed.@*RESULTS@#The expression levels of the six high HER2-expression cell lines SK-OV-3, NCI-N87, SK-BR-3, Calu-3, HCC1954, BT-474 were between 430 000 to 800 000 receptors per cell, which were 50 times higher than those of the other three low HER2 expression tumor cell lines MDA-MB-231, MCF-7, MDA-MB-468. Anti-HER2-ADC had inhibition effects on cell lines with high level of HER2 expression in the in vitro anti-proliferation assay. The half maximal inhibitory concentrations of anti-HER2-ADC on SK-OV-3, NCI-N87, SK-BR-3, Calu-3, HCC1954, BT-474 tumor cell lines were 46 pmol/L, 17 pmol/L, 17 pmol/L, 161 pmol/L, 125 pmol/L, 50 pmol/L, respectively. Anti-HER2-ADC had a dose dependent antitumor activity in vivo in all the HER2 positive xenograft mouse models. In NCI-N87 xenograft tumor model, the same dose of anti-HER2-ADC showed better anti-tumor activity compared with trastuzumab and ado-trastuzumab emtansine, and its relative tumor proliferation rates were about 1/30 to 1/20 of the two. In HCC1954 xenograft tumor model, the complete regression of the tumor was observed. As expected, anti-HER2-ADC had no tumor inhibitory effects on MDA-MB-468 xenograft models with low HER2 expression. The antitumor activities of anti-HER2-ADC in HER2 positive xenograft tumor models were the same as or better than the activities of ado-trastuzumab emtansine.@*CONCLUSION@#The homogenous site-specific anti-HER2-ADC obtained using unnatural amino acid technology can inhibit the growth of high HER2-expression tumor cells with high potency both in vivo and in vitro.


Subject(s)
Animals , Humans , Mice , Amino Acids , Breast Neoplasms , Cell Line, Tumor , Immunoconjugates , Receptor, ErbB-2 , Trastuzumab , Xenograft Model Antitumor Assays
15.
Chinese Journal of Organ Transplantation ; (12): 479-481, 2018.
Article in Chinese | WPRIM | ID: wpr-710710

ABSTRACT

Objective To investigate the diagnosis and treatment of antibody-mediated rejection after liver transplantation.Methods The clinical data of 1 case of antibody-mediated rejection after liver transplantation were collected.The patient had autoimmune liver disease (de-compensated stage) and received a liver transplantation with ABO-compatible.Triple immunosuppressive regimen of tacrolimus + mycophenolate mofetil + prednisone was used after operation.The valley of tacrolimus concentration was maintained at 8-10 μg/L.One month after transplantation,the liver function recovered to normal.Alanine aminotransferase was 16 U/L,aspartate aminotransferase was 37 U/L and total bilirubin was 17.3 U/L.Results Three months after operation,the liver function index increased sharply (total bilirubin was 186.3 U/L).The first pathological examination of liver biopsy at 14th week after operation showed the histological findings of acute rejection.Combining the data of clinical features,steroid pulse therapy was given,but the effect was poor.The biopsy of the retransplanted liver at 18th week after operation showed necrosis of minority hepatic cells and obvious attachment of lymphocytes in the central venous branch wall.Panel reactive antibodies test revealed that the HLA_ Ⅱ antibodies were intensively positive,suggesting the diagnosis of AMR.After treatment with plasma exchange and adjusting the immunosuppressant dosage,the function of the transplanted liver recovered gradually.Conclusion For liver transplantation with compatible blood type and recipient with autoimmune liver disease,we should alert the occurrence of acute AMR.Timely liver biopsy and PRA detection should be performed for definite diagnosis.Plasmapheresis is effective in treating acute AMR after liver transplantation.

16.
Fudan University Journal of Medical Sciences ; (6): 45-51, 2018.
Article in Chinese | WPRIM | ID: wpr-695763

ABSTRACT

Objective To evaluate the feasibility of Blocker PCR assays in monitoring T790M mutations in plasma of non-small-cell lung cancer (NSCLC) patients with epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) acquired resistance.Methods Blocker PCR assays were employed to identify mutations in plasma for 127 advanced NSCLC with acquired EGFR-TKI resistance.In addition,the paired tumor re-biopsy or PE samples were obtained to analyze EGFR mutations.Meanwhile,we evaluated the detection accuracy of Blocker PCR assays in comparison with the next generation sequencing (NGS).Results Among the 127 patients,40.15% (51/127) EGFR T790M was detected in the plasma,78.44% (40/51) coexisted with an EGFR activating mutation.Additionally,54.54 % (6/11) EGFR T790M was identified in re-biopsy tissues,while 43.75 % (14/32) were detected in the plasma.Furthermore,the concordance rate of Blocker PCR and NGS in identifying EGFR sensitizing mutations and EGFR T790M mutations was 100%.Conclusions Blocker PCR is a highly sensitive and reliable method in monitoring EGFR T790M mutations in the plasma of NSCLC patients with EGFR-TKI acquired resistance.

17.
International Eye Science ; (12): 535-538, 2018.
Article in Chinese | WPRIM | ID: wpr-695240

ABSTRACT

·AIM: To compare the influence of endolaser or cryotherapy on capsule contraction syndrome (CCS) following phaco - vitrectomy and intraocular lens implantation in patients with rhegmatogenous retinal detachment. ·METHODS: A total of 244 eyes were enrolled in this retrospective analysis. The surgical approach was standard vitrectomy combined with phacoemulsification and intraocular lens (IOL) implantation simultaneously. There were 198 eyes underwent endolaser and 46 eyes underwent cryotherapy during the surgery. The main outcome measures were postoperative clinical outcomes including anatomical position of retina, the capsules and the position of IOLs and best corrected visual acuity (BCVA) at 1d,1wk,1,2,3,6mo and 1a. ·RESULTS: There were 6 eyes (3.0%) of CCS occurred in endolaser group and 5 eyes (10.9%) of CCS occurred in cryotherapy group. The different procedures during the surgery were significantly associated with the incidence of CCS (odds ratio:0.256,P=0.021,95% Cl:0.075-0.880). ·CONCLUSION: Different procedures during phaco -vitrectomy surgery are significantly associated with the incidence of CCS. Endolaser is more beneficial than cryotherapy in preventing CCS following phaco -vitrectomy and intraocular lens implantation.

18.
Drug Evaluation Research ; (6): 1495-1499, 2017.
Article in Chinese | WPRIM | ID: wpr-664821

ABSTRACT

Objective To learn the adverse drug reaction (ADR) of traditional Chinese medicine injection (TCMI) in Dongfang Hospital of Beijing University of Chinese Medicine (BUCM),to master the characteristics of the occurrences of ADR,and to provide basis for safe and rational clinical drug use.Methods Locating all the reported ADR cases by Dongfang Hospital of BUCM to national ADR monitoring system from June 2011 to May 2016,and make retrospective analysis of them.Results Eighteen kinds of TCMI that caused the total 135 ADR cases,50 out of all the 135 instances were male patients,whilst the rest 85 instances were female patients;The main kinds of TCMI that caused ADR problems were TCMI for relieving heat and toxic material and TCMI for promoting blood circulation to remove blood stasis;TCMI was used jointly with antibiotics and biological product etc.;And the circumstances of ultra-dose and improper infusion allocation existed.The clinical manifestation included many skin lesion cases.All the patients suffered from ADR were cure.Conclusion Prudent and rational use of drugs,standardized clinical use procedure,and clinical re-evaluation are key aspects to lower the incidence rate ofADR of TCMI and to safe and rational use of drugs.

19.
Journal of Shanghai Jiaotong University(Medical Science) ; (12): 1389-1392, 2017.
Article in Chinese | WPRIM | ID: wpr-660505

ABSTRACT

Objective · To explore the correlation between immunofluorescence (IMF) deposition and corticosteroid effect in childhood focal segmental glomerulosclerosis (FSGS) manifesting with nephrotic syndrome (NS). Methods · Renal IMF deposition and clinical data of the children clinically diagnosed with NS and pathologically diagnosed with FSGS in the Department of Pediatric Nephrology in Xinhua Hospital, Shanghai Jiao Tong University from January 1990 to December 2015 were reviewed and analyzed retrospectively. Results · The renal pathological types classified by IMF of 47 patients diagnosed with FSGS manifesting with NS showed that 2 cases (4.26%) were IgA type, 12 cases (14.89%) were IgM type, 4 cases (8.51%) were complement (C) type, 1 case (2.13%) was IgG+A+M type, 5 cases (10.64%) were IgG+A+M+C type, 1 case (2.13%) was IgA+C type, 12 cases (25.53%) were IgM+C type, and there was no immune complexes present in 15 cases (31.91%). The IMF deposition showed 9 cases with IgA+, 25 cases with IgM+, 8 cases with IgG+, 23 cases with C3+, 3 cases with C4+, 6 cases with C1q+, 5 cases with FN+, 12 cases with all negative. After 4 weeks of treatment with oral prednisone at full dose, complete remission was presented in 34 cases (72.34%), partial remission was presented in 7 cases (14.89%), and no remission was presented in 6 cases (12.77%). There was no statistically difference in the corticosteroid effect among the different types of IMF (H=1.792, P=0.408). The corticosteroid effect had statistical differences between C1q+ and C1q- patients (χ2=7.22, P=0.027), while it had no significant differences in other conditions. Conclusion · In childhood FSGS manifesting with NS, C1q+ patients have relatively poor reaction to the corticosteroid therapy compared to C1q- ones.

20.
Journal of Shanghai Jiaotong University(Medical Science) ; (12): 1393-1397, 2017.
Article in Chinese | WPRIM | ID: wpr-660503

ABSTRACT

Objective · To evaluate the effect of phacoemulsification combining with intraocular lens (IOL) implantation in cataract patients with Fuchs endothelial corneal dystrophy (FECD) and high myopia. Methods · Five patients (9 eyes) diagnosed with FECD and high myopia were collected retrospectively at Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine from January 2015 to February 2016. All the 9 eyes underwent phacoemulsification combining with IOL implantation. Visual acuity, intraocular pressure, corneal endothelial cell density (CD) and central corneal thickness (CCT) were evaluated. Paired t-test was performed to evaluate the differences. Results · 88.89% (8/9) of the vision of the patients was improved, the best corrected visual acuity improved at least 2 lines. The intraocular pressure had no statistically significant difference before and after the operation (t=-1.066, P=0.318). The preoperative and postoperative CDs were (2184.25±196.44) cells/mm2 and (1910.0±83.41) cells/mm2 (t=2.876,P=0.064). The preoperative and postoperative CCTs were (546.83±33.74) μm and (566.67±24.66) μm (t=1.971, P=0.106). The loss rate for endothelial cells was (12.10±7.84)%. Only one patient was observed corneal edema and the CD could not be determined, so he underwent penetrating keratoplasty.Conclusion · Phacoemulsification combining with IOL implantation is safe and effective for patients with FECD and high myopia. Preoperative evaluation of corneal endothelium is necessary. Some measures should be taken into consideration to reduce the loss of endothelial cells during in surgery.

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