Effects of paroxetine on the safety of mothers and infants in the second and third trimesters of pregnancy：a meta-analysis / 中国药房

OBJECTIVE To systematically evaluate the safety of paroxetine in the treatment of pregnant patients with depression in the second and third trimesters of pregnancy， and provide reference for rational clinical use of it. METHODS Retrieved from Cochrane Library， PubMed， Embase， VIP， CNKI， Wanfang database and SinoMed database， by manual search， randomized controlled studies or observational studies were collected on depression patients who were given paroxetine vs. selective serotonin reuptake inhibitor （SSRI） in the second and third trimesters of pregnancy during the inception to Aug. 2022. Methodological qualities of the included studies were assessed by Cochrane Handbook 5.1.0 or Newcastle-Ottawa Scale （NOS）. Meta-analysis was performed with RevMan 5.4.1 software. RESULTS Finally， 9 observational studies were included， and all included studies were of high quality in NOS scale. Meta-analysis was performed on 8 cohort studies. Meta-analysis showed that the total incidence of adverse pregnancy outcomes of mothers and infants [RR＝0.99， 95%CI（0.89，1.10），P＝0.87]， total incidence of maternal adverse pregnancy outcomes [RR＝0.98， 95%CI （0.87，1.10）， P＝0.69] and premature birth [RR＝0.89， 95%CI （0.43， 1.83）， P＝0.75] in the second and third trimesters of pregnancy were lower than that with other SSRI， without statistical significance. The incidence of neonatal complications with paroxetine in the second and third trimesters of pregnancy was higher than that with other SSRI， but the difference was not statistically significant [RR＝1.02， 95%CI （0.82，1.29）， P＝0.84]. One study reported that the incidence of neonatal pulmonary hypertension in paroxetine group was higher than that in other SSRI group （0.4% vs. 0.3%）. CONCLUSIONS The safety of peroxetine in the second and third trimesters of pregnancy is comparable with that of other SSRI， but it is necessary to be alert to the occurrence of neonatal pulmonary hypertension.

Case analysis of a patient with osimertinib-induced interstitial pneumonia who re-used EGFR-TKI therapy / 中国药房

OBJECTIVE To explore the way to re-use epidermal growth factor receptor-tyrosine kinase inhibitors （EGFR-TKI） in patients with EGFR-TKI-induced interstitial pneumonia （IP）， using osimertinib as an example. METHODS The IP treatment regimen and re-use of EGFR-TKI regimen in a patient who developed IP after the use of osimertinib were analyzed. And a literature review was made by combining the characteristics of the cases which reported in the literature and the characteristics of this case. RESULTS The patient’s IP symptoms due to treatment with osimertinib had resolved after treatment. The patient’s IP symptoms also did not worsen after using almonertinib in combination with hormones as re-use of EGFR-TKI regimen. However， almonertinib was discontinued as the patient experienced disease progression. The adverse reactions of IP needed to be dealt with in time， the EGFR-TKI should be discontinued and symptomatic treatment should be given. CONCLUSIONS EGFR-TKI targeted therapy could be re-selected by replacing EGFR-TKI， adjusting the dose of EGFR-TKI， and using hormones in combination. EGFR-TKI-induced adverse drug reactions of IP are rare， but need to be observed closely. If other EGFR-TKI is used， close monitoring of adverse reactions and curative effects are also required in order to adjust the patient’s treatment plan in time.

Effect of electroacupuncture on lung dysplasia in rats with intrauterine growth restriction induced by maternal food restriction / 中国针灸

OBJECTIVE@#To investigate the protective effect of electroacupuncture (EA) at "Zusanli" (ST 36) in pregnant rats on lung dysplasia of newborn rats with intrauterine growth restriction (IUGR) induced by maternal food restriction.@*METHODS@#Twenty-four female SD rats were randomly divided into a control group, a control+EA group, a model group and a model+EA group, 6 rats in each group. From the 10th day into pregnancy to the time of delivery, the rats in the model group and the model+EA group were given with 50% dietary restriction to prepare IUGR model. From the 10th day into pregnancy to the time of delivery, the rats in the control+EA group and the model+EA group were treated with EA at bilateral "Zusanli" (ST 36), once a day. The body weight of offspring rats was measured at birth, and the body weight and lung weight of offspring rats were measured on the 21st day after birth. The lung function was measured by small animal lung function detection system; the lung tissue morphology was observed by HE staining; the content of peroxisome proliferator activated receptor γ (PPARγ) in lung tissue was detected by ELISA.@*RESULTS@#Compared with the control group, the body weight at birth as well as the body weight, lung weight, lung dynamic compliance (Cdyn) and PPARγ at 21 days after birth in the model group were significantly decreased (@*CONCLUSION@#EA at "Zusanli" (ST 36) may protect the lung function and lung histomorphology changes by regulating the level of PPARγ of lung in IUGR rats induced by maternal food restriction.

Analysis of related factors and evaluation of quality of life of osteonecrosis of femoral head after internal fixation of femoral neck fracture / 中国骨伤

OBJECTIVE@#To explore the risk factors of osteonecrosis of femoral head after internal fixation of femoral neck fracture in young patients, to describe the quality of life of patients with surviving femoral head, and to quantify the predictive factors.@*METHODS@#From January 2013 to December 2016, 172 patients (174 hips) with femoral neck fracture treated by closed reduction and cannulated screw internal fixation were selected for retrospective analysis. The general data of the patients were summarized, including age, gender, body mass index, trauma mechanism, trauma operation interval, trauma season and whether the internal fixation was removed. The imaging data included the Garden classification and Pauwel classification of fractures, femoral head retroversion angle, postoperative fracture reduction, screw distribution. Single factor analysis and multi-factor Logistic regression analysis were carried out to explore the risk factors of femoral head necrosis and internal fixation failure. The patients who survived the internal fixation were followed up. The quality of life of the patients was evaluated by the health survey of SF-36. The Harris score of hip joint function was used to evaluate the hip joint function. The predictors of the quality of life of the patients after the operation of femoral neck fracture were analyzed by multiple linear regression analysis.@*RESULTS@#Total 172 patients(174 hips) were included in the study, 29 patients(16.67%) had necrosis of the femoral head. In multivariate Logistic regression analysis, the significant differences were reduction quality (=0.126, =0.027) and posterior inclination angle (=4.380, =0.010). One hundred and thirty six patients (137 hips) who survived the femoral head were included in the quality of life survey. Harris score was 90.14±7.92, including excellent 96 hips (70.07%), good 28 hips (20.44%), medium 13 hips (9.49%) and poor 0 hip. In SF-36 score, physical health summary (PCS) was 46.12±9.12, mental health summary(MCS) was 50.21±3.97, there was no linear correlation between them (>0.05). In multiple linear regression analysis, the variables with significant difference in PCS were reduction quality and retroversion angle, and the variables with significant difference in MCS were fracture displacement and trauma mechanism.@*CONCLUSION@#Poor reduction quality and posterior inclination angle>15° are the risk factors of femoral head necrosis. The function of hip joint and MCS of patients with femoral neck fracture recovered well, but PCS could not recover to the average level of normal people. The reduction quality and retroversion angle could be used as the predictors of PCS, and the displacement and trauma mechanism of fracture could be used as the predictors of MCS.

Organoid in colorectal cancer: progress and challenges / 中华医学杂志(英文版)

Patient-derived tumor organoids (PDOs) currently represent important modeling tools in pre-clinical investigation of malignancies. Organoid cultures conserve the genetic and phenotypic characteristics of the original tumor and maintain its heterogeneity, allowing their application in many research fields. PDOs derived from colorectal cancer (CRC) have been used for genetic modeling to investigate the function of driver genes. Some researchers have been exploring the value of CRC PDOs in chemotherapy, targeted therapy, and radiotherapy response prediction. The successful generation of PDOs derived from CRC could deepen our understanding of CRC biology and provide novel tools for cancer modeling, for realizing precision medicine by assessing specimens from individual patients ex vivo. The present review discusses recently reported advances in CRC PDOs and the challenges they face as pre-clinical models in CRC research.

Limited external fixation of plastic cardboard for the treatment of senile comminuted humeral fracture / 中国骨伤

OBJECTIVE@#To explore clinical efficacy of limited external fixation with plastic paperboard in treating senile proximal comminuted humeral fracture.@*METHODS@#From June 2015 to December 2017, 32 senile patients with proximal comminuted fracture of humerus were treated with plasticized cardboard after manual external fixation. Among them, including 13 males and 19 females aged from 55 to 85 years old with an average of(68.22±8.36) years old; 18 patients on the left side and 14 patients on the right side; all patients were regularly review shoulder X-rays and performed appropriate functional exercises. Constant-Murley shoulder joint scoring was used to evaluate clinical effects.@*RESULTS@#Thirty-two patients were followed up for 3 to 12 months with an average of (4.97±2.39) months. All patients were underwent functional exercise under guidance of physicians. Nine patients were treated with topical Chinese herbal moist heat compresses to promote shoulder function recovery. Thirty-one patients were obtained fracture healing, the time ranged from 5 to 12 weeks with an average of(7.44±1.72)weeks. One patient was not healed due to comminuted fracture of fracture end and the separation was large, the blood supply to humeral head was insufficient for necrosis absorption. Postoperative Constant-Murley shoulder score at 3 months was 87.56±6.93; 15 patients got excellent results, 14 good, 2 fair and 1 poor.@*CONCLUSIONS@#Limited external fixation with plastic paperboard for the treatment of senile proximal comminuted humeral fracture could ensure biomechanical stability of fracture, promote early recovery of shoulder joint function and shorten recovery time.

Biomechanical study on side slip and forward slip promotion among children aged 3-5 years / 中国学校卫生

Objective@#To explore the forces of lower limbs during side slip and forward slip through biomechanical study, and to provide a theoretical basis for the development of lower limb movements.@*Methods@#BTS SMART DX motion capture analysis system, 8 infrared high-speed cameras, Kistler three-dimensional dynamometer, BTS FREEEMG 1000 portable wireless surface electromyography system were used to collect real-time data of side slip and forward slip. SPSS 20.0 univariate analysis of variance (ANOVA) was used to compare the differences of indicators between different groups.@*Results@#In the side sliding movement, there were significant differences in hip motion (P<0.01) between 3-year-old group and 5-year-old group, hip motion(P<0.01) between 4-year-old group and 5-year-old group, knee motion(P<0.05) and ankle motion(P<0.05) between 3-year-old group and 5-year-old group. There was a significant difference in hip motion(P<0.05) between 3-year-old group and 5-year-old group. The Fx force(P<0.01) and vertical Fy force(P<0.01) in the left and right directions of the 3-year-old group and the 5-year-old group were significantly different in the side-slip movement, while the Fx force(P<0.01) in the right and left directions of the 3-year-old group and the 5-year-old group were significantly different in the forward-slip movement, and the vertical Fy force(P<0.05) was significantly different. There were significant differences in the long head of biceps femoris, gastrocnemius and anterior tibial muscle between 3-year-old group and 5-year-old group (P<0.05). There were significant differences in the middle gluteal muscle, gracilis muscle, adductor magnus, pubic muscle, medial femoral muscle and soleus muscle between 3-year-old group and 5-year-old group (P<0.05). There was significant difference in the anterior tibial muscle (P<0.05) between the 3-year-old group and the 5-year-old group in the supporting stage, and significant difference in the gastrocnemius muscle(P<0.05) during the swing stage. There was significant difference in the anterior tibial muscle(P<0.05) between the 3-year-old group and the 5-year-old group in the swing stage.@*Conclusion@#The development of side slip and forward slip in children aged 3 to 5 years old showed that the results suggest motor development increases significantly with age among preschoolers. Rhythmic movements of side slip and forward slip should be selected in the critical period of children’s movement development at different ages, laying the foundation for good physical and mental development.

Effect of electroacupuncture at "Zusanli" (ST 36) and "Yanglingquan" (GB 34) on perinatal nicotine-exposure-induced lung function and morphology of neonatal rats / 中国针灸

OBJECTIVE@#To compare the effects of electroacupuncture (EA) at "Zusanli" (ST 36) versus "Yanglingquan" (GB 34) in the pregnant rats on perinatal nicotineexposureinduced lung function and morphology of newborn rats and explore the rule of acupoint effect in EA for the prevention from lung dysplasia in newborn rats.@*METHODS@#A total of 24 female SD rats were randomized into a normal saline group (S group), a nicotine group (N group), a nicotineST 36 group (N + ST 36 group) and a nicotineGB 34 group (N+GB 34 group), 6 rats in each one. Starting at the 6th day of pregnancy, 0.9% sodium chloride solution was injected subcutaneously in the S group, 1 mg/kg; and in the rest 3 groups, nicotine of the same dose was injected through to the 21st postnatal day to establish the perinatal nicotineexposure model. Simultaneously, during model preparation, EA was applied at "Zusanli" (ST 36) and "Yanglingquan" (GB 34) in the N+ST 36 group and the N+GB 34 group respectively, once a day, through to the 21st postnatal day. The lung function analytic system for small animal was adopted to observe the changes in lung function indicators in newborn rats, such as peak inspiratory flow (PIF), peak expiratory flow (PEF), expiratory resistance (RE), inspiratory resistance (RI) and dynamic compliance (Cdyn). HE staining was used to observe the morphological changes of lung, such as alveolar fusion and rupture.@*RESULTS@#Compared with the S group, PEF and Cdyn were lower and PIF, RI and RE higher in the N group (all 0.05).@*CONCLUSION@#Electroacupuncture at "Zusanli" (ST 36) in the pregnant rats significantly improves the perinatal nicotineexposureinduced lung function and morphology of newborn rats than electroacupuncture at "Yanglingquan" (GB 34).

Analysis Regarding Effect of Sympathetic Nerves on Body Regulation and Acupuncture Efficacy by Alpha1-adrenoreceptor Mediation / 现代生物医学进展

To clarify the effect of the sympathetic nerves on the body's physiopathological changes and acupuncture effect by the alphal-AR mediation in the past 30 years.The paper has referred to the database of CNKI and Pubmed,and systematically reviewed the publications in the past 30 years about the research of the alphal-AR mediation of the sympathetic nerves to the body's physiological andpathological changes and acupuncture effect.Alphal-AR not only mediated the sympathetic nerves on the inotropic change of the heart,and the contraction of the vascular smooth muscles,bladder sphincter,and uterine smooth muscles and other physiological effect,but also mediated cardiac arrhythmia,myocardial hypertrophy and other pathological process.In addition,Alphal-AR also mediated the acupuncture signal transmission,and acupuncture was able to adjust the sympathetic nervous tension.The body's physiopathological changes are closely related to alpha1-AR and subtype alteration.The in-depth study of alphal-AR helps to explain physiopathological mechanism of the body,as well as provide theoretical basis and the corresponding pharmacological models for better selective drugs.Studying Alpha1-AR on meridians contributes to the discovery of meridian essence and the substantial basis of acupuncture effects.

Culture in vitro of rat ovarian granulosa cells and effect of Ranae Oviductus on its proliferation / 重庆医学

Objective To optimize the effective methods of isolation,purification,culture in vitro and identification of SD rat ovarian granulosa cells,to research the effects of Oviductus Ranae on the proliferation of rat ovarian granulosa cells by CCK-8,and to contrastively analyze the best optimal action concentration and time of serum contsining Oviductus Ranae on granulosa cells to lay the foundation for further in vitro experiment.Methods Nonage SD rats aged 25 d were selected and intraperitoneally injected by pregnant mare serum,then killed after 48 h.Ovarian granulosa cells were collected and cultured in the DMEM-F12 culture solution.The hematoxylin & eosin(HE) staining and immunofluorescence technique were used to identify the ovarian granulosa cells.Twen ty-five SD rats were randomly divided into the normal control group,positive medicine control group,and low,middle and high do ses Oviductus Ranae groups.Blood was collected and serum was separated after 7 d mediaction gavage.The volume percent of 10 ％,20％,40％,80％ serum in each group was added into the in vitro medium system of ovarian granulosa cells culture.Then the cell proliferation situation at 24,48,72 h in each group was measured by CCK-8.Results Oviductus Ranae significantly increased the proliferation ability of granulosa cells in a certain dose-dependent relation.With the increase of Oviductus Ranae concentration con centration,its.proliferation ability was gradually increased,after 48 h action,which in the Oviducthus Ranae-Comtaining serum group with the volume fraction of 20％ was most significant (P＜0.05).Conclusion Establishing in vitro cultural method of rat o varian granulosa cells is conductive to further research the action and mechanism of Oviductus Ranae on ovary.

Biomechanical characteristics of percutaneous kyphoplasty versus percutaneous vertebroplasty for spinal sandwich fracture by finite element analysis / 中国组织工程研究

BACKGROUND: Percutaneous kyphoplasty (PKP) and percutaneous vertebroplasty (PVP) have been shown to obtain satisfactory clinical efficacy in the treatment of spinal sandwich fracture compared with conventional conservative method, but a further investigation on the related biomechanical characteristics is required. OBJECTIVE: To compare the biomechanics characteristics of PVP and PKP for spinal sandwich fracture. METHODS: The finite element models of PVP and PKP were constructed based on the finite element model of spinal sandwich fracture. The deformation and stress distribution characteristics were analyzed after loaded. RESULTS AND CONCLUSION: After PVP for L1, T11sandwich fracture, the stiffness at the thoracic and lumbar segments, the maximum stress and deformation at the sandwich vertebrae showed no obvious improvement, and the stress concentration at the anterior column of sandwich vertebrae was not improved significantly (from 26.12 Mpa to 23.37 Mpa, reduced by 10.53%). Meanwhile, PKP significantly increased the stiffness at the thoracic and lumbar segments, the maximum stress and deformation of the sandwich vertebrae were significantly decreased (from 27.15 Mpa to 17.52 Mpa, reduced by 36.71%).

A medium term therapeutic effects of anatomic locking plate for femoral intertrochanteric with lateral femoral wall fractures / 中国骨伤

<p><b>OBJECTIVE</b>To retrospectively study medium term follow-up outcomes of the femoral intertrochanteric with lateral femoral wall fractures using anatomic locking plate fixation.</p><p><b>METHODS</b>From June 2010 to January 2013, 18 cases of the unstable femoral intertrochanteric with lateral femoral wall fractures were treated with the anatomic locking plate, included 8 males and 10 females with an average age of 75.5 years ranging from 19 to 83 years old. There were 8 cases of traffic accident injuries, 6 cases of falls injuries, and 4 cases of falling from high place. The time from injury to operation was ranged from 1 to 14 days with an average of 4.5 days. The operation time, intraoperative blood loss and the length of hospitalization were recorded and analyzed. The fracture union was assessed by follow-up radiographs and hip functional recovery by PPMS and Harris hip scoring.</p><p><b>RESULTS</b>All patients were followed up from 36 to 68 months with a mean of(44.8±8.8) months. The mean operative time was (61.02±38.28) min;the mean blood loss was (226.00±162.52) ml;the mean length of hospitalization was (10.8±9.2) days. During the follow-up period, no infection, deep veintllrombosis, screwed cut-out and implant failure occurred in all patients. Coxa vara with shortening deformity was noted in 2 cases. Bone union was found in all the cases. The bone healing time was ranged from 4 to 10 months with an average of 6.2 months. The mean PPMS score at the final follow-up was 7.22±2.36. The Harris score was 79.46±11.02, 5 cases were classified as excellent, 9 as good and 2 as fair.</p><p><b>CONCLUSIONS</b>Proximal femoral anatomic locking plate can be used in treating intertrochanteric fractures with compromised lateral wall, which has a satisfied medium term follow-up outcomes, especially for complex fractures patterns in which intramedullary nailing may be difficult, and should not emphasis on premature loading.</p>

Practice of Clinical Pharmacists Participating in Anti-infective Treatment for A Patient with Tropical Candi-demia / 中国药房

OBJECTIVE:To explore the role of clinical pharmacists participating in drug therapy for patients with severe infec-tions. METHODS:Clinical pharmacists participated in drug treatment for a patient with tropical candidemia and assisted physicians to adjust anti-infective treatment plan. According to the results of blood culture,clinical pharmacists suggested Piperacillin sodium and tazobactam sodium for injection 3.75 g,ivgtt,q8 h+Caspofungin acetate for injection 50 mg (initial dose of 70 mg),ivgtt, qd,for symptomatic treatment;increased the daily dose of Caspofungin acetate for injection to 50 mg,ivgtt,bid due to plasma ex-change;Caspofungin acetate for injection 50 mg,ivgtt,qd+Amphotericin B for injection 0.1 mg/kg,ivgtt,qd for anti-infective plan due to the possible“contradiction”of echinocandins;closely monitored ADR,such as allergy,erythra,renal function injury. RE-SULTS:Physicians adopted the suggestions of clinical pharmacists,vital sign of patient kept stable,and tropical candidemia was not detected in the blood culture;the patient was transferred to general ward for further treatment. CONCLUSIONS:Based on the results of blood calture,clinical symptoms and the characteristics of drug effects,clinical pharmacists participated in the treatment for the patient with severe infection,retrieved related treatment guideline,assisted physicians to adjust anti-infective plan and close-ly monitored possible ADR so as to guarantee the effectiveness and safety of anti-infective treatment.

Effect of Acupuncture at Guanyuan (CV4) on Writhing Response and Vasomotor Substances in Rats with Dysmenorrhea Due to Coagulated Cold Syndrome / 上海针灸杂志

Objective To observe the analgesic effect of acupuncture at Guanyuan (CV4) and its effect on vasomotor substances in rats with dysmenorrhea due to coagulated cold syndrome. Method The coagulated-cold dysmenorrhea rat model was developed by Estrodiol benzoate and Oxytocin injectin plus physical freezing. The writhing response (writhing latency, writhing frequency, and writhing score) was observed, and the contents of TXB2 and 6-keto-PGF1a were detected by using enzyme-linked immunosorbent assay (ELISA). Result Compared with the saline water group, the writhing latency was significantly shortened, the writhing frequency was significantly increased, and the writhing score was more significantly increased in the model group (P0.05) in the model group. Compared with the model group, the content of plasma 6-keto-PGF1a showed an increasing tendency (P>0.05) and the content of plasma TXB2 showed a decreasing tendency (P>0.05) in the acupuncture group. Conclusion The vasomotor substances are obviously disordered in the blood of cold-coagulated dysmenorrhea rat models. Acupuncture at Guanyuan can improve the writhing response and release pain, and meanwhile positively regulate the vasomotor substances such as TXB2 and 6-keto-PGF1a. The vasomotor substances are plausibly one of the major substances in the action of acupuncture in preventing and treating dysmenorrhea.

Study of the Post Effect of Electroacupuncture on Blood Flow in the Skins of Related Meridian Points in Rats with Acute Ischemic Myocardial Injury / 上海针灸杂志

Objective To observe over-time changes in rat blood flow in the skins of related meridian points during physiological status, the pathological state of ischemic myocardial injury and low or high frequency electroacupuncture intervention and explore the post effect of different frequency electroacupuncture on related meridian points after treating ischemic myocardial injury. Method Fifty male Wister rats were randomized into five groups: blank control, sham operation, model, low frequency electroacupuncture (meridian point A) and high frequency electroacupuncture (meridian point B), 10 rats each. Blood flow in the skins of bilateral points Neiguan (PC6), Ximen (PC4) and Tianquan (PC2), and non-meridian and non-acupoint control points was measured by laser speckle contrast imaging in every group immediately and at 30 and 60 min after the end of three treatments. Statistical analysis was made. Result Blood flow in the skins of bilateral points Neiguan, Ximen and Tianquan was significantly lower in the blank control group than in the model group (P<0.01,P<0.05). Blood flow in the skin of every acupoint increased in varing degrees after low or high frequency electroacupuncture treatment. Blood flow in bilateral points Neiguan, Ximen and Tianquan regions in meridian point group A was closer to that in the blank control group immediately after treatment. Blood flow in three left-side and three right-side acupoint regions in meridian point group B was closer to that in the blank control group at 30 and 60 min, respectively, after treatment. Conclusion The immediate effect of low frequency electroacupuncture on blood flow in acupoint regions is better than high frequency electroacupuncture during intervention in ischemic myocardial injury. The post effect of high frequency electroacupuncture on blood flow in acupoint regions is better than low frequency electroacupuncture during intervention in ischemic myocardial injury.

Effect of electroacupuncture at different acupoints on hormones and neurotransmitters of hypotha- lamic-pituitary-adrenal axis in rats under simulated weightlessness / 中国针灸

<p><b>OBJECTIVE</b>To explore the change pattern of hypothalamic-pituitary-adrenal (HPA) axis and related neurotransmitters under simulated weightlessness.</p><p><b>METHODS</b>A total of 40 clean-grade male Wistar rats were randomly divided into a normal group, a tail-suspension group, an electroacupuncture (EA) at Neiguan (PC 6) group, an EA at Sanyinjiao (SP 6) group, 10 rats in each group. Rats in the tail-suspension group, EA at "Neiguan" (PC 6) group and EA at "Sanyinjiao" (SP 6) group were treated with tail suspension to simulate weightlessness effect. Rats in the normal group were treated with normal diet. Rats in the tail-suspension group were treated with tail suspension for 28 d. During the time of tail suspension, rats in the EA at "Neiguan" (PC 6) group were treated with EA at "Neiguan" (PC 6), 30 min per treatment, once every two days for 14 treatments, while rats in the EA at "Sanyinjiao" (SP 6) group were treated with EA at "Sanyinjiao" (SP 6), 30 min per treatment, once every two days for 14 treatments. Samples were all collected after 4 weeks. The contents of corticotropin releasing hormone (CRH) , adrenocorticotropic hormone (ACTH), corticosterone (CORT) in as well as 5-hydroxy tryptamine (5-HT), dopamine (DA), norepinephrine (NE) were measured by using radioimmunoassay.</p><p><b>RESULTS</b>Compared with the normal group, in the tail-suspension group the content of ACTH in pituitary was significantly decreased (P< 0.05), and the content of 5-HT in hypothalamus was significantly decreased (P < 0.01); the content of CRH and 5-HT in hypothalamus was significantly decreased (P < 0.01, P < 0.05) in the EA at "Neiguan" (PC 6) group; the content of CRH and 5-HT in hypothalamus was significantly decreased (P < 0.01), and the content of CORT in serum was significantly decreased (P < 0.05) in the EA at "Sanyinjiao" (SP 6) group. Compared with the tail-suspension group, the content of ACTH in hypothalamus was significantly decreased (P< 0.05) in the EA at "Neiguan" (PC 6) group; the content of CRH, ACTH and CORT was significantly decreased (P < 0.01, P < 0.05) in the EA at "Sanyinjiao" (SP 6) group. Compared with the EA at "Neiguan" (PC 6) group, the content of CORT was decreased (P < 0.05) in the EA at "Sanyinjiao" (SP 6) group.</p><p><b>CONCLUSION</b>EA can regulate the content of 5-HT in hypothalamus in tail-suspension rats, inhibit the hyperactivity of the HPA axis, in which EA at "Sanyinjiao" (SP 6) had more significant effects than "Neiguan" (PC 6), but no obvious effects on NE and DA were observed.</p>

Effect of low intensity pulsed ultrasound on expression of TIMP-2 in serum and expression of mmp-13 in articular cartilage of rabbits with knee osteoarthritis

OBJECTIVE@#To study the effect of low intensity pulsed ultrasound (LIPUS) on the expression of tissue inhibitor of metalloproteinase-2 (TIMP-2) in the serum and expression of matrix metallopeptidase 13 (MMP-13) in the articular cartilage cells of rabbits with knee osteoarthritis (OA).@*METHODS@#Inner patellar ligament defect method was used to establish the model of knee OA. Four weeks after the modeling, the arterial blood was drawn from the ear of each rabbit, while ELISA was employed to detect the expression of TIMP-2 in the serum. The chondrocytes were separated from animals in each group and then cultured in vitro. All rabbits were divided into control group, OA model group and OA + LIPUS group. Cells in the control and OA groups were not treated, while cells in the OA + LIPUS group were treated with LIPUS (40 mW/cm(2), 1 time/day). Cells were collected 7 d later and the RNA and total protein were extracted respectively. Real-time PCR and Western blotting were employed to analyze the expression of MMP-13 in chondrocytes at the mRNA and protein level, respectively.@*RESULTS@#The success rate of establishment of OA model was 83%. The results of ELISA showed that the content of TIMP-2 in the serum of animals with OA was 22.3%, lower than the one in the control group (P < 0.05). Compared with the normal control group, the expression of TIMP-2 in the OA model group was significantly increased, while the expression of MMP-13 was significantly increased (P < 0.05). After the stimulation of LIPUS, the expression of TIMP-2 and MMP-13 was close to the one in the normal control group.@*CONCLUSIONS@#The inner patellar ligament defect method is a mature method to establish the rabbit OA model, with high success rate. The expression of serum TIMP-2 in the OA model group is significantly decreased. LIPUS can up-regulate TIMP-2 and down-regulate MMP-13.

Effect of Different Acupuncture Stimuli on Uterine Micro-circulation and Circulation-related Substances of Dysmenorrheal Rats with Cold Stagnation Syndrome / 中国中医药信息杂志

Objective To explore the effect of different acupuncture stimuli on uterine micro-circulation of dysmenorrheal rats with cold stagnation syndrome. Methods Totally 32 three-month old female SD rats in diestrus were randomly divided into saline control group, model group, A stimuli group, and B stimuli group, 8 rats in each group. Model group and treatment groups were given whole body freezing combined with estradiol benzoate injection method to establish models. A stimuli group was given deep puncture with manipulation, while B stimuli group was treated by shallow puncture without manipulation. Diameter of uterine capillary,micro-vessel, TXB2, and 6-keto-PGF1αlevels were observed in each group. Results Compared with the saline group, capillary diameter in model group was significantly reduced at 5, 10, 20, 30 min time point (P<0.01);micro-vascular diameter was significantly reduced at 5, 10, 20, 30, 40 min time point (P<0.01);plasma 6-keto-PGF1α levels decreased (P<0.01);TXB2/6-keto-PGF1αincreased significantly (P<0.01). Compared with model group, capillary diameter in A stimuli group enlarged at 5, 10, 20, 30 min time point (P<0.05), micro-vascular diameter dilated at 5, 10, 20, 30, 40 min time point (P <0.01), plasma 6-keto-PGF1α level increased (P <0.05), TXB2/6-keto-PGF1αdecreased significantly (P<0.05);micro-vascular diameter in B stimuli group dilated at 20, 30 min time point (P<0.05), plasma TXB2/6-keto-PGF1α decreased significantly (P<0.05). Compared with B stimuli group, capillary diameter in A stimuli group dilated at 5, 10, 20, 30 min time point (P<0.05) and micro-vascular diameter dilated at 5, 10, 20, 30, 40 min time point significantly (P<0.01). Conclusion Dysmenorrheal rats with cold stagnation syndrome show obvious disorder of the uterus micro-circulation and circulation related substances. Both A and B acupuncture stimuli improved uterus micro-circulation of dysmenorrheal rats with cold stagnation syndrome, and its mechanism may be related to the recovery the balance between TXB2 and 6-keto-PGF1α.

Effect of low intensity pulsed ultrasound on expression of TIMP-2 in serum and expression of mmp-13 in articular cartilage of rabbits with knee osteoarthritis

Objective: To study the effect of low intensity pulsed ultrasound (LIPUS) on the expression of tissue inhibitor of metalloproteinase-2 (TIMP-2) in the serum and expression of matrix metallopeptidase 13 (MMP-13) in the articular cartilage cells of rabbits with knee osteoarthritis (OA). Methods: Inner patellar ligament defect method was used to establish the model of knee OA. Four weeks after the modeling, the arterial blood was drawn from the ear of each rabbit, while ELISA was employed to detect the expression of TIMP-2 in the serum. The chondrocytes were separated from animals in each group and then cultured in vitro. All rabbits were divided into control group, OA model group and OA + LIPUS group. Cells in the control and OA groups were not treated, while cells in the OA + LIPUS group were treated with LIPUS (40 mW/cm

Determination of Viterxin in Stenoloma Chusana(L.) Citing / 中国药师

Objective:To establish an HPLC method for the content determination of viterxin in Stenoloma chusana( L. ) Citing. Methods:A Waters Symmetry C18 (250 mm × 4. 6 mm, 5 μm) column was used, and the mobile phase was acetonitrile-0. 1% glacial acetic acid solution (27∶73) at the flow rate of 1. 0 ml·min-1 . The detection wavelength was at 339nm, and the column temperature was 30℃. Results:The linear relationship of viterxin was good within the range from 10. 03 to 90. 27μg·ml-1 . The average recovery was 100. 48%(RSD=0. 98%). Conclusion:The established method is accurate and sensitive with good reproducibility, which can be applied in the determination of viterxin of Stenoloma chusana( L. ) Citing.