Artemisiae Annuae Herba is dry aboveground part of Artemisia annua, which has a long history of application in China. Modern research achievements make it shiny all over the world. The breakthrough in modern research also attracts a lot of attention and related research, and now a lot of achievements have been made. In order to perform further research purposefully, systematic review of existing achievements was made to understand industry pattern and development prospect. And the patent document is one of the important science and technology literature source. The patent information was collected from several special patent database, and the patent and industrial structure in the field comprehensively was analyzed with the aid of computer science, including life cycle, geographical distribution, international exchange, efficacy preferences, compatibility strategy, excellent application institutions, and high value patents. The result shows that the field has sizable development space, which should make use of the analysis result of the paper to formulate development strategies in line with our own.

AIM: To explore the application effect of fenofibrate combined with 23G minimally invasive vitrectomy in patients with diabetic retinopathy(DR).

METHODS: Totally 102 DR patients(102 patients)treated in our hospital from October 2015 to November 2017 were selected and divided into observation group and control group according to random number table, 51 cases in each group. The 23G minimally invasive vitrectomy was performed in all patients. From the 1^st day after operation, the two groups were treated with related treatment, and the control group was given conventional hypoglycemic, antihypertensive and improved microcirculation treatment. On the basis of the above, the observation group was treated with fenofibrate treatment. Both groups were treated for 3mo. The operation and postoperative basic conditions(operative time, intraoperative blood loss, complication rate, length of stay), the level of blood lipid \〖total cholesterol(TC), triglyceride(TG), low density lipoprotein cholesterol(LDL-C), high density lipoprotein cholesterol(HDL-C)\〗, and the serum levels of related factors \〖lipoprotein associated phospholipase A2(Lp-PLA2), vascular endothelial growth factor(VEGF)\〗 before and after 3mo of operation of two groups were compared. Following up for 6mo after operation, the recurrence rate of two groups of retinopathy was statistically compared.

RESULTS: There was no significant difference in operative time, intraoperative blood loss, incidence of complications and length of stay between the two groups(P>0.05). There was no significant difference in the levels of TC, TG, LDL-C and HDL-C between the two groups before operation(P>0.05). After 3mo, the levels of TC, TG and LDL-C in the observation group were lower than those in the control group, and the level of HDL-C was higher than that in the control group, and the difference was statistically significant(P<0.05). There was no significant difference in serum levels of Lp-PLA2 and VEGF between the two groups before operation(P>0.05). The serum levels of Lp-PLA2 and VEGF in the observation group were lower than those in the control group 3mo after operation, and the difference was statistically significant(P<0.05). There was insignificant difference in visual function and quality of life, sensory adjustment, psychological and social scores and total scores between the two groups before surgery(P>0.05). At 3mo after operation, the scores of visual function and life quality in the observation group were lower than those in the control group, and the difference was statistically significant(P<0.05). After follow-up for 6mo, no recurrence occurred in the observation group. The recurrence rate in the control group was 5.9%(3/51), and there was no significant difference between the two groups(P>0.05).

CONCLUSION: The combination of fenofibrate and 23G minimally invasive vitrectomy for the treatment of DR can effectively correct the disorder of lipid metabolism, reduce the level of serum Lp-PLA2 and VEGF, so it is beneficial to improve the visual function and quality of life of the patients, but there is no effective data support for reducing the postoperative recurrence rate.

In order to establish K562 line with stable expressions of hermap and hermap-siRNA, amplified hermap and hermap-siRNA were cloned into pEGFP-c1 and pRNAT to acquire hermap-pEGFP-c1 and hermap-siRNA-pRNAT, respectively. These two plasmids were electrotransferred into K562 cells, then were followed by culturing with G418. The result showed that the transfer rate of hermap-pEGFP-c1-K562 and hermap-siRNA-pRNAT-K562 plasmids were 10.0% and 9.3%, respectively. After selective culture by G418, these two cell lines were still able to express GFP. It is concluded that the eukaryotic expression plasmids containing hermap and hermap-siRNA have been successfully constructed, and the cell lines of hermap-K562 and hermap-siRNA-K562 are established, definitely contributing to further functional investigation on HERMAP and its interaction with other proteins.
Erythrocytes ; chemistry ; Gene Silencing ; Humans ; K562 Cells ; Membrane Proteins ; genetics ; Plasmids ; RNA, Small Interfering ; Transfection

Objective The purpose of this study was to approach the relation of SNP43,SNP44 locus, main haplotypes and haplotype combinations with type 2 diabetes mellitus(T2DM).Methods According to the theory and principles of systematic review,data from case-control studies regarding the association between calpain-10(CAPN10) gene and T2DM were derived through electronic search of PubMed and Chinese journals databases.To gain a more precise estimation of the relationship,a stratified Meta-analysis with four subgroups was pertbrmed according to the races.Publication bias Was also assessed.Results The association with T2DM in different races was evaluated.In Mongoloid race,SNP43-G allele,G/G genotype and 111/221 haplotype combination showed notable association with T2DM with Ors (95%CI) as 1.368(1.155-1.620),1.437(1.186-1.741) and 2.762 (1.287-5.927) respectively.In Caucasoid race,SNP44-C allele,111/111 hapotype combination showed strong relationship with T2DM with Ors(95%CI) as 1.144(1.023-1.278),1.291(1.050-1.586) respectively.In Hybrid race,only one positive finding Was obtained which Was SNP44-C allele with OR(95%CI)as 1.653(1.025-2.665).Conclusion SNP43-G allele,G/G genotype,111/221 were risk factors to Mongoloid race.And SNP-C allele,111/111 haplotype combination were risk factors to Caucasoid race,and SNP44-C allele to Hybrid race.

OBJECTIVETo evaluate mechanical behavior of different fixed prosthesis following molar hemisection therapy for clinical reference.

METHODSFinite element method and photoelastic method were employed to investigate the stress distribution around the reserved distal root of the first mandibular molar with various fixed prosthesis designs. The restorations of single crown of the first mandibular molar, combined crowns of the first and second mandibular molars, combined crowns of the second mandibular premolar and first mandibular molar, and combined crowns of the second mandibular premolar, the first and second mandibular molars were designed. The same load was simulated on the occlusal surfaces of the molars.

RESULTSThe results of two studies showed that the stress around the reserved root in the single crown model was over 3 times as much as that of the normal model, the first mandibular molar with normal roots and a crown. For the combined crowns of the first and second mandibular molars, the stress was almost twice of the normal stress. While in the models of the combined crowns of the second mandibular premolar and first mandibular molar, as well as the combined crowns of the second mandibular premolar, the first and second mandibular molars, the stress distributions were similar to that in normal conditions.

CONCLUSIONSBoth the results indicated that the restoration of two-unit dual-ended combined crowns has favorable stress distribution and is applicable for the reserved root following the hemisection therapy.

Adult ; Dental Prosthesis Design ; Dental Stress Analysis ; Denture, Partial, Fixed ; Finite Element Analysis ; Humans ; Male ; Mandible ; Models, Anatomic ; Molar

Objective Both epidemiologic characteristics and transmission mode of a varicella outbreak among schoolchildren in Shenzhen city were studied and related control measures were discussed.Methods Case definition was established.Case-finding and face-to-face investigation were conducted,followed by analysis on distributions of time,place and persons of the outbreak.Association between possible modes of transmission and the outbreak was explored.Retrospective cohort study was carried out.Results The overall attack rate of this outbreak was 4.4％ (122 of 2742).The attack rate among primary schoolchildren (8.3％,118/1419) was higher than that in the middle-school children (0.3％,4/1323).There were no statistically significant differences on the attack rates between male and female students.A total of 22 classes from the 9 grades were affected by this outbreak and the aggregation of varicella cases was found in classes.The highest attack rates was found in the students of fifth grade (23.7％),followed by from the third grade (13.4％).The main transmission mode appeared to be close personal contact.The outbreak,with four peaks of incidence,lasted 72 days.Data from the investigation suggested that the primary case was introduced into the school during military training involved by the students.Activities related to physical examination for all the schoolchildren seemed to have contributed to the spread of this disease among classes.Delayed isolation of cases appeared to be the major factor causing the spread of disease among classes.Intensive off-school activities or free community bus for children did not seem to be associated with the spreading of the disease.52.5％ (64/122) of the cases had received one-dose of varicella vaccine,with the median of onset after the vaccination as 7 years.The results demonstrated that one single-dose vaccine or long vaccination period were factors related to the insufficient immunity that causing the outbreak of disease.Conclusion Varicella outbreak has been one of the most grievous public health problems in schools,posting challenges on the implementation of isolation measures,in particular.Once the chain of transmission is in place,it is difficult to make the universal measures effective within a short period.

OBJECTIVETo evaluate the treatment outcome of HLA-identical sibling allogeneic hematopoietic stem cell transplantation (allo-HSCT) for chronic myelogenous leukemia (CML) patients in first chronic phase (CP(1)).

METHODSFifty-one patients with CML-CP(1) received HLA-identical sibling allo-HSCT with conditioning regimens of TBI plus Cy or Bu plus Cy. Allogeneic peripheral blood stem cell transplantation (PBSCT) and bone marrow transplantation (BMT) were performed for 28 and 23 patients, respectively. The median follow-up duration was 1434 (60 - 4062) days.

RESULTSFifty (98.0%) patients were successfully engrafted. Transplant-related mortality occurred in 8 (15.7%) patients. Acute graft-versus-host disease (aGVHD) occurred in 35 (68.6%) patients and 11 (21.6%) patients were grade II-IV, while chronic GVHD (cGVHD) did in 17 (37.8%) patients. Five (7.4%) patients relapsed. The 5-year probability of disease-free survival (DFS) was (79.2 +/- 6.4)%. There was no significant difference in 5-year DFS, death rate and treatment related syndromes between the two conditioning regimens (P > 0.05), and in 5-year DFS, relapse rate and death rate between two transplant choices (P > 0.05). However, the rate of relapse was lower in Bu/Cy group (P < 0.01) and the rate of cGVHD was higher in allo-PBSCT group (P < 0.05).

CONCLUSIONSAllo-HSCT can cure a significant proportion of patients with CML-CP(1). There was no significant difference in DFS between the two different conditioning regimens and between the different transplant choices. Donor lymphocyte infusion is a therapeutic alternative for CML patients relapsed after transplantation.

Adult ; Female ; HLA Antigens ; Hematopoietic Stem Cell Transplantation ; methods ; Humans ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive ; surgery ; Male ; Middle Aged ; Recurrence ; Siblings ; Transplantation Conditioning ; Transplantation, Homologous ; Treatment Outcome

OBJECTIVETo study the effects of hermap gene on kinases in erythroid signal transduction pathway and investigate the mechanism of hermap on erythroid differentiation.

METHODSThe K562 cells expressing hermap and hermap-siRNA respectively were established for up- and down-regulating the expression of hermap gene. These K562 cells were then induced by Ara-C to erythroid differentiation and analyzed at 0, 24, 48, 72 and 96 h, respectively, for cell morphology and biphenylamine staining positive cells, determination of CD235a, CD36, kinases p-STAT5, p-Akt, p-MAPK and p-c-JUN by FCM; and quantification of hermap gene and γ (Aγ,Gγ) globin gene by FQ-PCR.

RESULTSWith up-regulating hermap gene and inducing by Ara-C, K562 cells were changing to low ratio of nucleus to cytoplasm, cytoplasm colour from basophilic to pinkish or amethyst tinge, increase of number of biphenylamine positive cells and expression of CD235a, CD36, γ (Aγ,Gγ) globin gene, hermap gene and p-STAT5 from 0 to 96 h. At 0, 24, 48, 72 and 96 h of culture, the positive rates of p-STAT5 cells were detected of 0.46%, 4.54%, 20.01%, 23.65% and 33.08%, respectively. This results demonstrated that there was a positive correlation between expression of p-STAT5 and hermap gene expression (P < 0.05).

CONCLUSIONhermap gene can stimulate erythroid differentiation of Ara-C induced K562 cells mainly through JAK/STAT5 signal transduction pathway.

Cell Differentiation ; Erythrocyte Membrane ; Erythrocytes ; cytology ; Erythropoiesis ; Gene Expression ; Humans ; K562 Cells ; Receptors, Erythropoietin ; genetics ; STAT5 Transcription Factor ; metabolism ; Signal Transduction

OBJECTIVESTo explore the frequency, clinical features and risk factors of venous thromboembolism (VTE) in hospitalized patients.

METHODSThe frequency, demographic features, and acquired and inherited factors of in-patient cases of VTE in Peking union medical college hospital from 1994 to 2004 were analyzed retrospectively.

RESULTSSix hundred and seventy-two patients were enrolled. Among them, male to female ratio was 1.2 and the median age was 53 (14 - 92). Five hundred and eighty (86.3%) patients were at their first diagnosis with the peak ages between 40 and 50 for men and 50 and 60 for women. More common acquired risk factors were antiphospholipid antibody syndrome (APS) (32.0%), trauma / surgery (31.1%) and malignancies (17.1%). 35.7% of the patients had multiple acquired risk factors. Before the initiation of anticoagulation therapy, the activities of protein C (PC), protein S (PS) and antithrombin (AT) were measured in 94 patients. The deficiency of these three natural anticoagulants was 44.7%. Among the anticoagulant deficiencies, PC deficiency was the commonest one (13.8%). Combined deficiency of PC and AT accounted for 10.6%. 31.6% of the 94 patients had inherited plus acquired risk factors.

CONCLUSIONSAge for the first event of VTE in the men was about 10 years ahead of that in the women. The major acquired risk factors were APS, trauma/surgery and malignancies, and inherited risk factors were PC deficiency and PC + AT combined deficiencies. It seems that the coexistence of multiple risk factors plays an important role in triggering VTE.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Risk Factors ; Venous Thromboembolism ; etiology

OBJECTIVETo study the relation of the detection rates of the novel influenza virus A/H1N1 RNA in clinically confirmed patients in the 2009 pandemic with the age distribution of the patients and the disease course.

METHODSA total of 151 clinical patients with H1N1 infection were enrolled in this study, from whom 833 dynamic throat swab samples were obtained for detecting the H1N1 RNA using real-time PCR. A statistical analysis of the age distribution was performed among the patients with different disease courses. Chi-square for trend test was used to study the correlation between the detection rates of H1N1 RNA and the time of disease onset.

RESULTSThe majority of patients were young with their ages ranging from 10 to 20 years (57.26%) and 20 to 30 years (22.18%). Chi-square for trend test revealed that the positivity rates of the throat swabs in the patients decreased with the prolongation of the disease course (chi(2)=9.784, P=0.002).

CONCLUSIONMost of the H1N1 patients are young within the age range of 10-30 years, and the longest disease course can exceed 10 days. The positivity rates of throat swabs from the H1N1 patients decreases with the prolongation of the disease course.

Adolescent ; Adult ; Age Factors ; Child ; China ; epidemiology ; Female ; Humans ; Influenza A Virus, H1N1 Subtype ; genetics ; Influenza, Human ; epidemiology ; virology ; Male ; Pharynx ; virology ; RNA, Viral ; analysis ; Reverse Transcriptase Polymerase Chain Reaction ; Young Adult