Objectives To investigate the effect of rhEPO on newborn rats with necrotizing enterocolitis (NEC). Meth-ods Sixty newborn Sprague-Dewley (SD) rats at the age of 48 hours were randomly divided into 5 groups:control group, NEC group, and intervention groups 1, 2 and 3 treated with rhEPO. The rats were fed rat breast milk substitutes and stressed under hypoxia and cold exposure to establish NEC model. The rats with NEC were treated with different doses of rhEPO (0.1U/ml, 1U/ml and 10U/ml) in intervention groups. The expression of Bcl-2 and caspase-3 were measured by immunohistochemistry, and intestinal pathological changes were observed using HE staining. The value of positive expression was analyzed by IOD (integral optical density) image analysis system. Results Abdominal distention, decreased activity and unresponsiveness occurred in NEC rats 24 hours after stress exposure, and pale skin, decreased skin temperature and respiratory rhythm change were observed in severe cases. The symptoms appeared later and milder in three intervention groups. The NEC incidence of newborn rats was as followings:control group(0%), model group(60%), intervention group 1( 30%), intervention group 2(18.2%), intervention group 3(9.1%) and the difference was signiifcant between each group (P=0.008). The grades of intestinal injury, the expression of active caspase-3 and Bcl-2 were signiifcantly different among groups (P<0.01). Intestinal injury was the most severe and the expression level of active caspase-3 was the highest in NEC group. After rhEPO treatment, the intestinal injury and the production of active caspase-3 protein were decreased, and the expression of Bcl-2 was increased. Conclusions Oral rhEPO could decrease the ex-pression of intestinal active caspase 3, and increase the expression of Bcl-2. The protective effect of rhEPO on NEC is dosede-pendent.

Objective To observe the effects of long term injection sodium salicylate on the auditory brain-stem response(ABR)and expression of glutamic acid decarboxylase -67(GAD67) in rat inferior colliculus .Methods Eighteen healthy Wistar rats were randomly divided into three groups :the sodium salicylate group (intramuscular injection of 10% sodium salicylate ,175 mg/kg ,twice daliy for 28 days) ,the saline group (intramuscular injection with saline on same does at the same time) ,the control group (without any treatment) .The rats received ABR after modeling ,then were decapitated and inferior colliculus tissues were stripped .Western blot was used to study the dif-ferent expression of GAD67 protein levels in the three groups .Results Compared with the saline group and control group ,ABR thresholds of the sodium salicylate group were significantly elevated and latency of wave Ⅲ was aslo sig-nificantly prolonged(P<0 .01) ,while there was no significant difference between the saline group and the control group(P>0 .05) .The inferior colliculus GAD67 protein expression level of sodium salicylate group was significantly higher than the saline group and control group(P<0 .01) ,while there was no significant difference between the saline group and the control group(P>0 .05) .Conclusion Long term injection of sodium salicylate can cause a change in the inferior colliculus of GAD67 protein expression and the up regulation of GAD67 expression may occur as a com-pensatory response to increase inhibiting effect .The change of GAD67 protein expression is likely as a compensatory and regulatory mechanisms for sodium salicylate ototoxicity .

Good medicinal herbs, good drugs. Good evaluation method and indices are the prerequisite of good medicinal herbs. However, there exist numerous indices for quality evaluation and control in Chinese medicinal materials. However, most of these indices are non-interrelated each other, as well as having little relationship with efficiency and safety. The results of different evaluatior methods may not be consistent, even contradictory. Considering the complex material properties of Chinese medicinal materials, single method and index is difficult to objectively and comprehensively reflect the quality. Therefore, it is essential to explore the integrated evaluation methods. In this paper, oriented by the integrated evaluation strategies for traditional Chinese medicine quality, a new method called integrated quality index (IQI) by the integration of empirical evaluation, chemical evaluation, and biological evaluation was proposed. In addition, a study case of hypertoxic herb Aconitum carmichaelii Debx. was provided to explain this method in detail. The results suggested that in the view of specifications, the average weight of Jiangyou aconite was the greatest, followed by Weishan aconite, Butuo aconite, Hanzhong aconite, and Anxian aconite; from the point of chemical components, Jiangyou aconite had the characteristic with strong efficacy and weak toxicity, next was Hanzhong aconite, Butuo aconite, Weishan aconite, and Anxian aconite; taking toxicity price as the index, Hanzhong aconite and Jiangyou aconite have the lower toxicity, while Butuo aconite, Weishan aconite, and Anxian aconite have the relatively higher one. After the normalization and integration of evaluation results, we calculated the IQI value of Jiangyou aconite, Hanzhong aconite, Butuo aconite, Weishan aconite, and Anxian aconite were 0.842 +/- 0.091, 0.597 +/- 0.047, 0.442 +/- 0.033, 0.454 +/- 0.038, 0.170 +/- 0.021, respectively. The quality of Jiangyou aconite is significantly better than the others (P < 0.05) followed by Hanzhong aconite, which is consistent with the traditional understanding of genuineness. It can be concluded that IQI achieves the integrated control and evaluation for the quality of Chinese medicinal materials, and it is an exploration for building the good medicinal herbs standards. In addition, IQI provides technical supports for the geoherbalism evaluation, selective breeding, the development of precision decoction pieces, high quality and favourable price in market circulation, and rational drug use.
Aconitum ; chemistry ; Drugs, Chinese Herbal ; standards ; Medicine, Chinese Traditional ; standards

The stable and controllable quality of decoction pieces is an important factor to ensure the efficacy of clinical medicine. Considering the dilemma that the existing standardization of processing mode cannot effectively eliminate the variability of quality raw ingredients, and ensure the stability between different batches, we first propose a new strategy for Chinese medicine processing technologies that coupled with individuation processed and cybernetics. In order to explain this thinking, an individual study case about different grades aconite is provided. We hope this strategy could better serve for clinical medicine, and promote the inheritance and innovation of Chinese medicine processing skills and theories.
Chemistry, Pharmaceutical ; methods ; standards ; Cybernetics ; standards ; Drug Therapy ; standards ; Drugs, Chinese Herbal ; chemistry ; standards ; toxicity ; Humans ; Quality Control

Quality control is one of the key scientific tissues in the modernization of traditional Chinese medicines (TCM). In order to overcome the deficiencies of assessment indexes, including little systematization and quantification, as well as loose association with clinical efficacy and dosage, a new integrated method named controllability pyramid ( CP) is first proposed in this paper. In addition, some study cases are used to explain how this model is constructed. We hope the establishment of CP could promote the clinical-orien- ted integrated innovation research of TCM, and provide control strategy and technology examples for improving the quality of Chinese medicines and clinical efficacy.
China ; Drug Evaluation ; methods ; standards ; Drug Therapy ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; standards ; Humans ; Medicine, Chinese Traditional ; standards ; Quality Control

To study the effects of ouabain on the inner ear glial cells, and to lay the foundation for the study of stem cell transplantation in the treatment of sensorineural hearing loss.Methods Sixty adult female SPF grade CBA / J mice were randomly divided into experimental group and control group, with 30 mice in each group.Animals in the experimental group received 3mM ouabain via the round window membrane, while mice in control group received normal saline.The mice were sacrificed at 7 days, 14 days and 30 days after the administration,respectively.Immunofluorescence histochemical staining was used to detect the inner ear glial cells in spiral ganglion.Results Some inner ear glial cells survived in the spiral ganglion of the experimental group, while with decreased numbers and disorganized structure compared to those of in the control group.Comparing to those of in the control group, the number and density of inner ear glial cells in the experimental group were significantly decreased from 7 days afterouabain administration,further decreased at 14 days and reduced to the lowest at 30 days after ouabain administration, the differences between the 2 groups were statistically significant (P < 0.05).Among the experimental group, the number of inner ear glial cells at 30 days was significantly decreased when compared to those of at 7 days and 14 days, respectively.Conclusion Application of ouabain to mouse inner ear via the round window membrane leads to an acute and progressive direct damage to the inner ear glial cells in the spiral ganglion.

Objective To explore the clinical characteristics in twin premature infants in order to provide some guidance for clinical work in future.Methods The clinical data of 593 premature infants hospitalized in Department of Pediatrics,the Affiliated Hospital of Kunming Medical University were collected from June 2010 to June 2012,in terms of gestational age,birth weight and neonatal complications.A retrospective analysis was performed for the data.The premature infants were divided into 2 groups:study group of 131 twin premature infants and control group of 462 singleton premature infants.The 131 twin premature infants in study group were divided into large double group(n =64) and small double group(n =67) according to delivery time.The clinical data of premature infants in each group were statistically analyzed.Results The gestational age of study group was (34.23 ± 1.90) weeks,which in control group was (33.91 ± 1.82) weeks,and there was no significant difference between the 2 groups(t =1.689,P =0.092).The birth weight in study group [(1 921.64 ± 414.05)g] had statistically significant difference compared with control group [(2 164.98 ± 495.85) g] (t =-5.209,P =0.000).The study group of incidence of premature rupture of membranes was 16.79％ (22/131 cases)and which in the control group was 32.68％ (151/462 cases),and there was statistically significant difference between the 2 groups (x2 =12.472,P =0.000) ;the incidence of neonatal asphyxia of study group was 9.92％ (13/131 cases) and that of the control group was 17.10％ (79/462 cases),there was statistically significant difference between the 2 groups (x2 =4.010,P =0.045) ; the incidence of respiratory distress syndrome in study group was 6.87％ (9/131 cases) and that in the control group was 3.03 ％ (14/462 cases),the difference was statistically significant between the 2 groups (x2 =4.037,P =0.045) ; the incidence of apnea in study group was 4.58％ (6/131 cases) and that in the control group was 0.65％ (3/462 cases),the difference was statistically significant between the 2 groups(x2 =8.085,P =0.004) ; the incidence of meconium aspiration syndrome of study group was 0 and that of the control group was 3.90％ (18/462 cases),there was statistically significant difference (P =0.018) ;the incidence of neonatal hypoglycemia of study group was 27.48％ (36/131 cases) and that of the control group was 16.67％ (77/462 cases),the difference was statistically significant between the 2 groups (x2 =7.738,P =0.005) ;the incidence of sepsis of study group [16.79％ (22/131 cases)] was significantly higher than that of the control group [8.44％ (39/462 cases)],and the difference was statistically significant between the 2 groups (x2 =7.715,P =0.005) ;the incidence of extrauterine growth retardation of study group was 6.10％ (8/131 cases) and that of the control group was 2.38％ (11/462 cases),the difference was statistically significant between the both groups (x2 =4.568,P =0.033).In the study group,the incidence of neonatal sepsis in big double group was 29.68％ (19/64 cases),and that in small double was 14.93％ (10/67 cases),there was statistically significant difference between the 2 groups(x2 =4.138,P =0.042).The other complications between the big double group and small double group had no significant difference.Conclusions The incidence rates of acute respiratory distress syndrome,apnea,neonatal hypoglycemia,sepsis and extrauterine growth retardation of twin premature infants are higher than the singleton premature infants in the neonatal period.But the incidence rate of meconium aspiration syndrome is a higher in singleton premature infants.

Objective To explore the effect of complement activation on bone marrow mesenchymal stem cells (BMSCs)and evaluate the effect after transfection of complement regulatory proteins.Methods Bone marrow aspirate was harvested from 10 cases of patients suffered from fractures.Mesenchymal stem ceils were isolated,indentified cultured and then experimented in vitro.The complement cytotoxicity on the mesenchymal stem cells in autologous serum was measured by Europium cytotoxicity assay.The samples were divided into BMSCs group,BMSCs+ autologous human serum (AHS) group and BMSCs+ inactivated autologous human serum (iAHS) group.The complement membrane attack complex (MAC) deposited on the membranes was detected by flow cytometry.Finally,the cytotoxicity on BMSCs was measured after transfected with membrane complement regulatory proteins (mCRPs).All samples were divided into BMSCs with mCRPs untransfected group and BMSCs with mCRPs transfected group.Results More than 95％ of cells derived from bone marrow were identified to be mesenchymal stem cells through detection of cell surface markers by flow cytometry.The cytotoxicity of untreated cells was 0.41％± 1.48％.BMSCs harvested from the 10 patients all had cytotoxicity after incubated with autologous serum,and the cytotoxicity was 32.59％±2.73％,while cytotoxicity after incubated with complement inactivated autologous serum was 2.59％±3.08％,which was similar to control group.Complement attack complex (MAC) could be detected on the BMSCs incubated with autologous serum,which implied the complement activation.After transfection of mCRPs,the cytotoxicity of autologous serum on transfected cells was decreased.The cytotoxicity of untransfected cells (41.70％±4.47％) had significant difference compared to the cells transfected with CD55 (21.87％±2.19％),the cells transfected with CD59 (18.67％± 1.42％),and the cells transfected with CD46+CD55+CD59 (28.43％±2.14％).CD55,CD59 and CD46+CD55 +CD59 transfected groups could impair effectively the cytotoxicity from complement.However,the cytotoxicity impairment was less effective in CD46 transfected cells (39.30％±3.96％),which had no significant difference compared to untransfected cells.Conclusion Membrane complement regulatory proteins could effectively protect bone marrow mesenchymal stem cells from attacks by complement.

This study was aimed to reveal current achievements and the future trend about Chinese materia medica (CMM) processing, which pointed future research direction for scholars.“CMM processing” was used as the subject term in document retrieval to the Web of Science (WoS) and CNKI. The CitespaceII and Ucinet & Netdraw were used to build mapping knowledge domains to acceptable both English and Chinese literature data. The results showed that the mapping knowledge for“CMM processing” for co-citation, source journal, author, key words and so on were established. It was concluded that the rapid present period of Chinese literature on CMM processing was earlier for around 15 years than English literature. And the total amount of English documents was much less than Chinese documents. Combing the developing process of CMM, it revealed its current achievements and future trend, which pointed future research direction for scholars, and moreover it put forward new thinking and method to summarize or expand traditional medicine and related research fields.