3.Advances in drug treatment of acromegaly
Chinese Journal of Biochemical Pharmaceutics 2015;(11):185-188
Acromegaly is mostly caused by a pituitary adenoma secreting growth hormone ( GH ) , which leads to a wide range of endocrine morbidities, with an insidious onset and slow progression.A long-term overproduction of GH results in elevated insulin-like growth factor-1 ( IGF-1 ) level, which in turn, would cause target organ damage and an increased risk for mortality and decreased quality of life.Herein, the literature regarding the progress of drug therapy for acromegaly in recent five years is reviewed.
4.miR-486 is a tumor suppressor in glioma stem cells
Chinese Journal of Tissue Engineering Research 2015;(41):6633-6637
BACKGROUND:Previous studies have found that the expression level of miR-486 in glioma stem cels (CD133+) is significantly down-regulated compared with that in glioma non-stem cels (CD133-), but the effect of down-regulation of miR-486 on CD133+ cels remains unclear . OBJECTIVE: To explore the effect of miR-486 on CD133+ cels. METHODS:CD133+ glioma stem cels and CD133- glioma cels were separated from U87 cels by flow cytometer. miR-486 overexpression glioma stem cels were constructed by lipofection transfection. RESULTS AND CONCLUSION:After sorting and purification, the content of the CD133+ fraction was enriched up to 83.5%. The expression level of miR-468 in CD133+ glioma stem cels was obviously down-regulated compared with that in CD133- glioma cels. CD133+ glioma stem cels overexpressing miR-486 were fabricated successfuly. Results from in vitro experiments showed that miR-486 overexpression could dramaticaly decrease the proliferation of glioma stem cels, induce a cel cycle arrest in G1/S phase for CD133+ glioma stem cels and promote cel apoptosis. These findings suggest that miR-486 can be a suppressor of glioma stem cels, which offers a novel potential therapeutic target for glioma stem cels and human glioma.
5.Effects of different analgesia schemes on joint function and adverse reactions following total knee arthroplasty
Chinese Journal of Tissue Engineering Research 2015;(35):5620-5624
BACKGROUND:Severe knee pain after total knee arthroplasty is an important factor for the poor recovery of knee function after replacement. How to give a satisfactory postoperative analgesia scheme is currently a hot research. OBJECTIVE:To explore the clinical effects of different analgesic program methods on postoperative pain and functional recovery in patients undergoing total knee arthroplasty. METHODS:From March 2010 to February 2014, 60 patients with unilateral knee arthroplasty were randomly divided into three groups:epidural analgesia group, intravenous analgesia group, and continuous femoral nerve block analgesia group. 20 patients in each group received corresponding postoperative analgesia. Visual Analogue Scale score before replacement, 1, 6, 24, 48 and 96 hours after replacement, the recovery of range of motion at 24, 48 and 72 hours after replacement, KSS score of the knee and adverse reactions after replacement were recorded and compared in each group. RESULTS AND CONCLUSION:Compared with the preoperative data, Visual Analogue Scale score was reduced in continuous femoral nerve block analgesia group at 1, 24, 48 and 96 hours after replacement (P<0.05). The recovery of range of motion was best in the continuous femoral nerve block analgesia group, fol owed by epidural analgesia group, and it was poorest in the intravenous analgesia group (P<0.05). Compared with the preoperative data, postoperative KSS scores increased at 1 and 3 months after replacement in the three groups (P<0.05). Compared with the continuous femoral nerve block analgesia group, knee joint function score was decreased in the intravenous analgesia group (P<0.05). Results verified that continuous femoral nerve block analgesia had good overal effects, helped the recovery of postoperative joint function, and was safe and reliable.
6.Effect of Capsaicin on Chronic Atrophic Gastritis
Chinese Journal of Gastroenterology 2015;(5):278-282
Background:Chronic atrophic gastritis( CAG)is a common type of gastritis and is closely related to the pathogenesis of gastric carcinoma,however,the efficacy of its drug treatment is not clear. Aims:To study the therapeutic effect of capsaicin on CAG in rats. Methods:CAG rat model was established by intragastric administration of sodium deoxycholate, ethanol and ammonium hydroxide. Forty-four survival model rats were randomly divided into CAG model group and low, moderate,high dose capsaicin groups,rats in the latter 3 groups were intragastrically administrated with 1 mg·kg-1 ·d-1 , 10 mg·kg-1 · d-1 ,30 mg · kg-1 · d-1 capsaicin,respectively,for 28 days. The inflammation and degree of atrophy of gastric mucosa were observed by HE staining. Gastric mucosal levels of pepsinogen( PG)Ⅰ,PGⅡ were determined by ELISA. The protein expressions of IKKβ,NF-κB,XIAP were determined by Western blotting. Results:The differences in inflammation and degree of atrophy of gastric mucosa,levels of PGⅠ,PGⅡ,protein expressions of IKKβ,NF-κB,XIAP were statistically significant among model group,low,moderate,high dose capsaicin groups( P <0. 05 ). With the increasing of capsaicin dose,inflammation and degree of atrophy of gastric mucosa were improved in a dose-dependent manner(P<0. 05),protein expressions of IKKβ,NF-κB,XIAP were decreased. Conclusions:Capsaicin is effective for the treatment of CAG.
7.Effects and Mechanism of Pitavastatin on Monocrotaline-induced Pulmonary Arterial Hypertension in Rats
Herald of Medicine 2015;(5):569-573
Objective To investigate the effects and mechanism of pitavastatin on monocrotaline ( MTC )-induced pulmonary arterial hypertension ( PAH) in rats. Methods A total of 50 male Sprague-Dawley rats were randomly divided into five groups (n=10 each):pitavastatin treatment at low dose (1 mg·kg-1·d-1),treatment at high dose (3 mg·kg-1·d-1), pitavastatin prevention regimen (1 mg·kg-1·d-1), model control group, and the normol control group. PAH was induced by applying a single subcutaneous injection of MTC(55 mg·kg-1)in the first four groups of rats. The treatment lasted for 8 weeks. At the end of the study, survival rates and mean pulmonary arterial pressure ( mPAP ) among groups were compared. The expression levels of platelet-derived growth factor-B ( PDGF-B) and IL-6, Rac1 mRNA in small pulmonary artery were also detected. Results All rats in the prevention protocol and normal control group survived. Pitavastatin treatment improved survival in the treatment protocol(P<0. 01). The survival rate in the low dose, high dose, and model control group was 60. 0%, 80. 0%, and 40. 0%, respectively. Pitavastatin in both prevention or treatment protocol significantly lowered mPAP (P<0. 01). Pitavastatin also inhibited PDGF-B and IL-6 expression (P<0. 01),and inhibited Rac1 mRNA expression in lung tissues (P<0. 01). Conclusion Pitavastatin reduces mPAP in the MTC-induced PAH rat model, the mechanism of which may be related to inhibition of Rac1 expression,smooth muscle cell proliferation and inflammatory mediator IL-6.
8.Determination of Cinnamaldehyde and Hesperidin in Siweiqing Buccal Tablets by High Performance Liquid Chromatography
Herald of Medicine 2014;(12):1627-1630
Objective To establish a method for the determination of hesPeridin and cinnamaldehyde in siweiqing buccal tablets. Methods A high Performance liquid chromatograPhy ( HPLC) method was established. The chromatograPhic conditions were as follows: the chromatograPhic column Inertsil ODS_SP ( 4. 6 mmí150 mm, 5 μm ) with the mixture of acetonitrile and water as mobile Phase in gradient mode,the detection waVelength of 290 nm,the flow rate of 1. 0 mL·min-1 ,the column temPerature of 30℃,the theoretical Plate number no less than 3 000. Results The linear relationshiP between content and Peak area was obtained in the range of 0. 025-0. 500 μg for cinnamaldehyde and 0. 10-2. 00 μg for hesPeridin. RSD of the Peak area of cinnamaldehyde and hesPeridin for the Precision test,the stability test and the rePeatability test were 1. 16%and 1. 03%,1. 27%and 1. 08%,1. 23%and 1. 28%,resPectiVely. The aVerage recoVery of cinnamaldehyde was 99. 24%with RSD of 1. 65%(n=9). The aVerage recoVery of hesPeridin was 99. 39%with RSD of 1. 85%(n=9). Conclusion The method can be aPPlied to quantitatiVe assay of cinnamaldehyde and hesPeridin in siweiqing buccal tablets with good reProducibility and sPecificity. The recoVery result met the accePtance criteria. The method can effectiVely control the quality of siweiqing buccal tablets with good sPecificity,reProducibility and stability,and can be aPPlied to the quality control of siweiqing buccal tablets.
9.Advances of treatment for angioimmunoblastic T-cell lymphoma
Journal of Leukemia & Lymphoma 2013;22(9):517-519
Angioimmunoblastic T-cell lymphoma (AITL) is a rare subtype of peripheral T-cell lymphoma (PTCL) with aggressive behaviour and poor prognosis.Due to the rarity of the disease,few prospective controlled randomized clinical trials were conducted,and the standard therapeutic option for AITL has not been established.Although conventional anthracycline-based chemotherapy achieves response rates of up to 50 %,most of the patients relapse,the median survival time and overall survival rate are unsatisfactory.Recent studies have demonstrated that hematopietic stem cell transplantation and cyclosporine show promising efficacy in the treatment of AITL.This current review mainly focused on the advance of treatment for AITL.
10.Progress and prospects of research on information processing techniques for intelligent diagnosis of traditional Chinese medicine
Journal of Integrative Medicine 2006;4(6):560-6
Information processing for intelligent diagnosis of traditional Chinese medicine (TCM), an important part of the modernization of Chinese medicine, attracts world wide attention from the science circle. This article presents a systematic introduction to the development of information technology, especially the processing of pulse and tongue images and systems of computer-aided Chinese medical diagnosis. Furthermore, it points out four essential areas of future research, including epistemic logic system of syndrome differentiation, system construction technology, data miming technology and information acquisition and analysis in TCM diagnosis.