Progress of traditional Chinese medicine in treatment of acute mononuclear leukemia / 白血病·淋巴瘤

Acute mononuclear leukemia is a type of disease with a high incidence in acute myeloid leukemia. With the continuous deepening of traditional Chinese medicine research, some progress has been made in the research on its clinical efficacy and mechanism of action. This article reviews the research progress in the treatment of acute mononuclear leukemia with traditional Chinese medicine in recent years.

Serum ox-LDL level and its influencing factors in elderly female hypertension patients / 中华老年心脑血管病杂志

Objective To study the serum ox-LDL level and its influencing factors in elderly female hypertension patients.Methods Two hundred and ninety elderly females were divided into hypertension group(n=96)and hypertension-free group(n=194).Their age and blood routine examination data were recorded.The patients in hypertension group were further divided into≥60years old group(n=47)and＜60years old group(n=49),their clinical characteristics were compared. The influencing factors of ox-LDL were analyzed.Results The age was significantly older,the SBP and DBP,serum FBG,ox-LDL,Lp-PLA2,TC,LDL-C levels,BMI,incidence of DM and CHD were significantly higher in hypertension group than in hypertension-free group(P＜0.05,P＜0.01).The age was significantly older,the SBP,serum FPG,ox-LDL,Lp-PLA2,TC,LDL-C levels and incidence of CHD were significantly higher while the DBP was significantly lower in ≥60 years old group than in＜60years old group(P＜0.05,P＜0.01).Serum ox-LDL level was positively related with age,SBP,DBP,serum FPG,creatinine,TC,LDL-C,Lp-PLA2levels and smoking( P＜0.05,P＜0.01).Multivariate linear regression analysis showed that serum TC,Lp-PLA2,LDL-C levels and DBP were the risk factors for ox-LDL in female hypertension patients(P＜0.05,P＜0.01).Conclusion The serum ox-LDL level is significantly higher in elderly female hypertension patients than in elderly male hypertension patients.Serum TC,Lp-PLA2,LDL-C levels and DBP are the risk factors for ox-LDL in elderly female hypertension patients

Relationship of serum UA level with CHD and cerebral stroke in elderly female essential hypertension patients / 中华老年心脑血管病杂志

Objective To study the relationship of serum UA level with coronary heart disease (CHD) and cerebral stroke in elderly female essential hypertension (EH) patients. Methods Four hundred and seventy-two female EH patients admitted to our hospital from February 2014 to June 2018 were divided into normal UA group (n = 389) and hyperuricemia group (n = 83) according to their serum UA level. The clinical characteristics, blood pressure, incidence of CHD and cerebral stroke were compared between the two groups. The relationship of serum UA level with CHD and cerebral stroke was analyzed by logistic regression analysis. Results The age was significantly older, the course of hypertension was significantly longer, the SBP and BMI were significantly higher, the circumstances of lumber and buttock were significantly longer, the serum FPG,TB, UA levels and the incidence of grade 2 hypertension and grade 3 hypertension were significantly higher while the serum HDL-C level was significantly lower in hyperuricemia group than in normal UA group (P＜0.05, P＜0.01). Multivariate logistic regression analysis showed that serum UA level was positively related with CHD and cerebral stroke in elderly female EH patients after adjustment for risk factors such as age (OR = 1.003, 95％CI:1.000-1.007, P=0.045;OR = 1.006, 95％CI:1.000-1.012,P = 0.042). Conclusion Hyperuricemia is closely related with CHD and cerebral stroke in elederly EH patients.

Relationship between serum level of uric acid and components of metabolic syndrome in elderly essential hypertensive patients / 中华老年心脑血管病杂志

Objective To study the relationship between serum uric acid (UA) level and metabolic syndrome (MS) in elderly essential hypertensive (EH) patients.Methods Two hundred and one elderly EH patients were divided into hyperuricemia group (n=47) and normal UA group (n=154).Hyperuricemia was defined in males with their serum UA level ＞ 420 μmol/L and in females with their serum UA level ＞ 360 μmol/L.Relationship between serum UA level and MS in elderly EH patients was analyzed by Pearson correlation analysis and logistic regression analysis respectively.Results The age was significantly older,the waist circumference was significantly longer,the BMI and serum SCr,FPG,TG level and the incidence of MS,central obesity,high blood glucose and high TG were significantly higher while the serum HDL-C level was significantly lower in hyperuricemia group than in normal UA group.Pearson correlation analysis showed that waist circumference,BMI,serum FPG and TG level were positively related with serum UA level while serum HDL-C level was negatively related with serum UA level (P＜0.05,P＜0.01).Logistic regression analysis showed that waist circumference and serum TG level were the independent risk factors for elevated serum UA level in elderly EH patients (OR=1.080,95％ CI:1.035-1.127,P=0.000;OR=1.472,95％CI:1.021-2.122,P=0.038).Conclusion Serum UA level is closely related with MS and its components while waist circumference and serum TG level are the independent risk factors for hyperuricemia in elderly EH patients.

Preoperative prediction and intraoperative injury prevention of nonrecurrent laryngeal nerve / 中国癌症杂志

Background and purpose:A non-recurrent course is a rare anatomic variation of the recurrent laryngeal nerve, which is highly predisposed to injury in thyroidectomy. The study was to summarize preoperative judgment and injury prevention of non-recurrent laryngeal nerve (NRLN) during thyroidectomy.Methods:Preoperative diagnosis and precautions during thyroidectomy were investigated, clinical data from eleven cases of NRLN were analyzed and related literature was reviewed as well.Results:All eleven cases were NRLN of type 1. Among those, the right subclavian artery was found posteriorly to the trachea and esophagus shown by preoperative CT in seven cases. One case who had NRLN injury underwent nerve anastomosis.Conclusion:NRLN is a rare anatomical variation. Preoperative neck CT scan identifies presence of a NRLN, which may reduce the incidence of nerve injures by using intraoperative capsular dissection.

Research progress of related molecular mechanism in curcumin induced apoptosis of leukemia cells / 白血病·淋巴瘤

Curcumin is a polyphenolic compound extracted from curcuma genus of zingiberaceae,with many pharmacological actions,for example anti-inflammatory,antioxidant,anti-tumor and so on.The antitumor effect of curcumin received attention recently.It can inhibit cell proliferation and metastasis in various tumors.This paper reviewed the recent progress of related molecular mechanism in curcumin induced apoptosis of leukemia cells.

Inhibitory effect of curcumin on the expressions of MAPKs and MMPs in RPMI8226 cells during their pro-liferation / 医学研究生学报

Objective curcumin can suppress the proliferation , induce apoptosis and partial differentiation , and inhibit the migration of many kinds of tumor cells .The aim of this study was to investigate the expressions of mitogen-activated protein kinase (MAPKs) and matrix metalloproteinases (MMPs) when the proliferation of human multiple myeloma RPMI8226 cells was inhibited by curcumin in vitro, and to reveal the antitumor molecular mechanism of curcumin . Methods RPMI8226 cells were treated with various concentrations of curcumin for different periods of times .The inhibitory rate of curcumin on cell proliferation was detected by MTT assay , the cell cycle analyzed by flow cytometry , the protein levels of MAPKs measured by Western blot , and the activity of MMPs analyzed by Gelatin zymography . Results Curcumin inhibited the proliferation of RPMI 8226 cells in a time-and dose-dependent manner , and the cell cycle was arrested in the G 2/M phase ([12.72 ±0.68]%vs [4.79 ±0.15]%).The expressions of JNK and p-JNK showed a con-centration-dependent increase in the RPMI8226 cells treated with curcumin at 6.25, 12.50, and 25.00 μmol/L, respectively (P0.05).In addition, the activities of MMP-2 and MMP-9 were decreased in a dose-depend-ent manner in the supernatant of RPMI8226 cells ( P <0.01). Conclusion A certain concentration of curcumin could not only acti-vate the JNK signalling pathway of the MAPKs family and induce the apoptosis of RPMI8226 cells, but also inhibit the activity of MMPs and influence the invasion and metastasis of RPMI 8226 cells.

Differential expression of angiogenic growth factors in cerebrovascular malformations / 中国组织工程研究

BACKGROUND:Cerebral vascular malformations are the leading cause of hemorrhagic apoplexy in young adults, and the rupture and bleeding of malformed vessels may cause severe neurological dysfunction. The mechanism of cerebral vascular malformations remains unclear. Modern molecular biology studies have shown that, angiogenic growth factors are abnormal y expressed in cerebral vascular malformations. OBJECTIVE:To evaluate differences in the expression of angiogenic growth factors in cerebral vascular malformations, and discuss the possible relationship between cerebral vascular malformations and angiogenic growth factors. METHODS:Fifty patients with cerebral vascular malformations and fifty patients with intracerebral hemorrhage were included in this study. The expressions of angiogenic growth factor (vascular endothelial growth factor and transforming growth factor-α) in the cerebral vascular malformation specimens and the normal superficial temporal artery specimens were detected with immunohistochemical staining. RESULTS AND CONCLUSION:In the normal superficial temporal artery of intracerebral hemorrhage patients, no expression of vascular endothelial growth factor and transforming growth factor-αwas found;in the vascular malformations, they were highly expressed (P<0.05). Compared with normal blood vessels, vascular endothelial growth factor and transforming growth factor-αexpression was significantly increased in patients with cerebral vascular malformations.

Experimental study on the differentiation of SHI-1 cells induced by puerariae radix flavones in vitro / 白血病·淋巴瘤

Objective To explore the possible effects on differentiation of SHI-1 cells induced by puerariae radix flavones(PRF)in vitro.Methods SHI-1 cells were treated with PRF in various concertration,then the inhibitory effects of cell proliferation were detected by MTT assay,the cell cycles were analyzed by flow cytometry(FCM),the cells reduction rates were detected by NBT reduction test,and the expression of CD11b and CD14 were tested by FCM.Results 10-50 μg/ml PRF could inhibit the proliferation of SHI-1 cells in a time-and dose-dependent manner,and the cell cycles were arrested in S phase.When SHI-1 cells were treated with 10,30 and 50 μg/ml PRF in 48 houres respectively,the NBT reduction rates of cells were increased in a dose-dependent with PRF(P＜0.05),and the expression of cells surface differentiation antigen CD14 was also increased along with the concentration of PRF.Conclusion The SHI-1 cells could be induced to differentiation partially after treated with 10,30 and 50 μg/ml PRF in vitro.

Effect of curcumin on expressions of mitogen-activated protein kinases and matrix metalloproteinases in Jurkat cells / 南方医科大学学报

<p><b>OBJECTIVE</b>To investigate the expressions of mitogen-activated protein kinases (MAPKs) and matrix metalloproteinases (MMPs) in apoptotic human T cell lymphoma Jurkat cells induced by curcumin in vitro and explore the possible molecular mechanisms of curcumin-induced apoptosis.</p><p><b>METHODS</b>Jurkat cells were treated with different concentrations of curcumin, and the cell proliferation and cell cycle changes were detected by MTT assay and flow cytometry, respectively. Western blotting and gelatin zymography were employed to examine the protein expression levels of MAPKs and MMPs activity in the exposed cells.</p><p><b>RESULTS</b>Curcumin inhibited the proliferation of Jurkat cells in a time- and dose-dependent manner, and caused cell cycle arrest in G0/G1 phase. Treatment of Jurkat cells with 25, 50, and 75 µmol/L curcumin resulted in a concentration-dependent increase of JNK and p-JNK expressions (P<0.01) without significantly affecting the expressions of ERK1/2 and P38 MAPK or the activity of MMP-2 and MMP-9.</p><p><b>CONCLUSION</b>Curcumin within the concentration range of 6.25-25.00 µmol/L can induce apoptosis and cell cycle arrest of Jurkat cells, the mechanism of which might involve the activation of JNK pathway but not the MMPs.</p>

In vitro isolation, culture and identification of adipose-derived stem cells* / 中国组织工程研究

BACKGROUND:Adipose-derived stem cells are easily col ected and abundantly cultured, which can proliferate rapidly when being cultured in vitro. With multi-directional differentiation potential, adipose-derived stem cells are expected as seed cells for tissue engineering. OBJECTIVE:To isolate, culture and identify of adipose-derived stem cells from Sprague-Dawley rats in vitro. METHODS:The subcutaneous adipose tissue was obtained from the iliac region of rats under the aseptic condition, and then was digested with 0.075%type Ⅰ col agenase and cultured in vitro. The morphology and proliferation characteristics of the cells were observed under an inverted phase contrast microscope. The third passage was put into gauge for growth curve by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, and the cells were also identified by CD44, a stem cellmarker, with immunofluorescence staining. Adipose-derived stem cells were induced and differentiated into adipocytes in Dulbecco’s modified Eagle’s medium/Ham’s nutrient mixture F-12 containing 10%fetal bovine serum, dexamethasone and insulin, and then the cells were identified with oil red“O”staining. Adipose-derived stem cells were induced and differentiated into neural cells, and then the cells were identified with immunohistochemical staining. RESULTS AND CONCLUSION:The growth curve of adipose-derived stem cells was opposite-like“S”shape, and it strongly expressed CD44 that can designate a stem cell. The passage cells were exposed to a defined medium for adipocyte differentiation, and then could be stained with oil red. After being induced and differentiated into nerve cells, the cells expressed neuron-specific enolase. The adipose-derived stem cells of Sprague-Dawley rats are characterized by easy isolation, culture and proliferation in vitro, expressing related phenotypes of mesenchymal stem cells, as wel as induction and differentiation under certain conditions.

Hashimoto's thyroiditis accompanying with thyroid cancer:98 cases / 中华内分泌外科杂志

Objective To discuss the clinical characteristics of Hashimoto's thyroiditis accompanying with thyroid cancer. Methods Clinical data of 98 cases Hashimoto's thyroiditis accompanying with thyroid cancer were retrospectively reviewed. Results 2 cases underwent lateral thyroid lobectomy and isthmus resection. 58 cases underwent bilateral thyroid lobectomy. 35 cases underwent central lymph node dissection, with 15 cases of lymph node positive. 3 cases underwent modified radical dissection of cervical lymph nodes and all of them were proved to be lymph node positive. Metastasis rate is 25.0% and 52. 2% respectively for tumors whose diameter was less than 1 cm and greater than 1 cm. The difference has no statistic significance. Conclusions Hashimoto's thyroiditis usually accompany with thyroid papillary carcinoma and cervical lymph node metastasis can occur even if it's microcarcinoma. Lymph node metastasis rate increases with increasement of the tumor's diameter. Total thyroidectomy should be performed for Hashimoto's thyroiditis concomitant with thyroid cancer. And if necessary,lymph node dissection should be extended to the central region and lateral neck area.

In vivo degradation and tissue compatibility of poly-L-lactide/beta-tricalcium phosphate composite rods for internal fixation of bone fractures / 生物医学工程学杂志

Abstract Poly-l-lactide/beta-tricalcium phosphate (PLLA/betaTCP) composite was obtained by combining ground beta-TCP with PLLA, and absorbable rods were prepared by injection moulding. Degradations of the rods were investigated by scanning electron microscope (SEM), mass loss, molecular weight and bending strength changes. At the beginning of in vivo degradation of the rods, the molecular weight of PLLA decreases sharply with the less mass losses of the rods. As in vivo degradation progress, the surfaces of the rods changed roughly, while micropores and fine groove were observed in the inner part of the rods. The bending strength of composite rods decreased from 151 MPa to 106 MPa after in vivo degradation of 12 weeks. Tissue test reveal that PLLA/beta-TCP composite has good tissue compatibility compared with PLLA.

Investigation of STD/AIDS related KABP among the high-risk population / 中华男科学杂志

<p><b>OBJECTIVE</b>To understand the knowledge, attitude, behavior and perception (KABP) related to STD/AIDS among the high-risk population and to explore effective methods for health education and behavioral intervention.</p><p><b>METHODS</b>Seven hundred and twenty of the reeducated in a reeducation center were surveyed using questionnaires, which were collected and analyzed.</p><p><b>RESULTS</b>The knowledge of the subjects about STD/AIDS was insufficient. When they had sex with their clients, the preventive measures against STD/AIDS were incorrect and the proportion of condom use was small. And when infected with STD/AIDS, they turned to private clinics for nonstandard treatment.</p><p><b>CONCLUSION</b>The knowledge of save sex and the preventive measures against STD/AIDS need to be improved, and correct guidance is imperative as to the seeking of standard medical help among the high-risk population. The key to sexual health education was to establish a corresponding social supporting system.</p>

Recent progress in research on human neutrophil peptides / 医学研究生学报

Human neutrophils defensins, e.g., human neutrophils peptides (HNP), had been found in polymorphonuclear neutrophil and shown broad antimicrobial activity, cytotoxicity and chemotaxis as an important family of human innate defence components. The researches on defensins is becoming a worldwide major focus of biological and medical attention nowadays. The researches on molecular characteristics, biological and pathophysiological activities of HNP are reviewed.

Lipocalin-type prostaglandin D synthase:preparation of monoclonal antibodies and localization on human sperm / 中国免疫学杂志

Objective:To prepare monoclonal antibodies against lipocalin type prostaglandin D synthase and to explore the distribution of lipocalin type prostaglandin D synthase on human sperm.Methods:BALB/c mice were immunized with lipocalin type prostaglandin D synthase,monoclonal antibodies were prepared by hybridoma technique,the biological characteristics of antibodies were analyzed by ELISA and Western blot,the distribution of lipocalin type prostaglandin D synthase on sperm were performed by immunohistochemistry.Results:A strain of hybridoma cell was obtain,and the IgG isotype of the antibody was identified as IgG1,with affinity constat(K) of 2?108 and titer over 103.Western blot demonstrated specific recognition of lipocalin type prostaglandin D synthase by the obtained monoclonal antibody.The result of immunohistochemistry displayed that lipocalin type prostaglandin D synthase was mainly distributed on the surface of human sperm.Conclusion:A hybridoma cell secreting anti-lipocalin type prostaglandin D synthase monoclonal antibodies stably was established.On the surface of human sperm,there is lipocalin type prostaglandin D synthase's distribution. [