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Objective:To investigate the effect of eccentric exercise training on knee function and neuromuscular control in patients with patellofemoral pain syndrome. Methods:From September, 2016 to September, 2019, 39 outpatients with patellofemoral pain syndrome visiting our hospital were randomly divided into control group (n = 19) and experimental group (n = 20). Both groups received routine rehabilitation, while the experimental group received eccentric training of quadriceps femoris in addition, for eight weeks. They were assessed with Visual Analogue Scale (VAS) of pain, Lysholm score, while the acceleration time was measured with Isokinetic Testing and Training System, and stability index with Dynamic Balance Tester. Results:The VAS score, acceleration time of all the muscles, and overall, anterior-posterior and medial-lateral stability indexes decreased (t > 2.521, P < 0.05), and the Lysholm score increased (|t| > 13.628, P < 0.001) in both groups after treatment, while the VAS score, acceleration time of all the muscles, overall and anterior-posterior stability indexes were less (|t| > 2.174, P < 0.05), and the Lysholm score was more (t = 11.947, P < 0.001) in the experimental group than in the control group. Conclusion:Eccentric exercise training of quadriceps femoris is effective on pain, knee function and neuromuscular control for patients with patellofemoral pain syndrome.
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To identify and verify the active ingredients from Astragalus membranaceus on hypertensive cardiac remodeling based on network pharmacology and heart RNA-sequencing data. The monomers of A. membranaceus and their intervention target database were established by using network pharmacology. The genes associated to cardiac remodeling were then screened by analyzing cardiac RNA-sequencing data. An overlap between genes related to cardiac remodeling and targets of ingredients form A. membranaceus was collected to obtain monomers with protective effect on hypertensive cardiac remodeling. Angiotensin Ⅱ(AngⅡ)-induced mouse cardiac remodeling model was used to validate the protective effect of active ingredients from A. membranaceus on hypertensive cardiac remodeling. Finally, a total of 81 monomers and 1 197 targets were enrolled in our database. Mouse RNA-sequencing data showed that 983 genes were significantly up-regulated and 465 genes were down-regulation in myocardial tissues of the cardiac remodeling mice as compared with blank group mice, respectively. Ninety-two genes were found via overlapping between genes related to cardiac remodeling and targets, involving 59 monomers from A. membranaceus. Further research found that vanillic acid(VA) could intervene 27 genes associated with hypertensive cardiac remodeling, ranking top 1. Meanwhile, VA could significantly inhibit AngⅡ-induced increase in ratio of heart weight to body weight and heart weight to tibial length, ANP and BNP mRNA levels in myocardial tissues, myocardial tissue damage, cardiac fibrosis level and cardiac hypertrophy level in vivo. Those results showed that network pharmacology screen-based VA has protective effect on AngⅡ-induced cardiac remodeling.
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Animals , Mice , Angiotensin II , Astragalus propinquus/chemistry , Heart , Hypertension/genetics , Protective Agents/pharmacology , Vanillic Acid/pharmacology , Ventricular Remodeling/geneticsABSTRACT
Objective::To investigate the effects of modified Buwangsan on the learning and memory ability of Alzheimer's disease (AD) model rats and the expression of NOD-like receptor 3 (NLRP3), cysteine-containing aspartate-specific proteases 1 (Caspase-1) and interleukin-1 beta (IL-1β) in NLRP3 inflammatory pathway in hippocampus of AD model rats, and exploring the underlying mechanism of modified Buwangsan. Method::The 52 eligible rats were randomly divided into sham control group, AD model group, low-dose modified Buwangsan group (1.5 g·kg-1) and high-dose modified Buwangsan group (3 g·kg-1). AD mouse model was established by bilateral hippocampus injection of Aβ1-425 μL (2 g·L-1). The rats in low-dose and high-dose modified Buwangsan group received low and high dose modified Buwangsan respectively within the next 4 weeks, once daily. The learning and memory ability was tested by Morris water maze. The expression of NLRP3, Caspase-1 and IL-1β mRNA was tested by quantitative PCR(Real-time PCR) and Western blot. Result::As compared with the sham group, the learning and memory ability of the rats were significantly impaired (P<0.05). Compared with AD model group, the learning and memory ability and the expression levels of NLRP3, Caspase-1, and IL-1β mRNA and protein were all no statistical differences in low-dose modified Buwangsan group, while the learning and memory ability of the rats were significantly improved and the expression of NLRP3, Caspase-1 and IL-1β mRNA in hippocampus of rats was significantly decreased in high-dose modified Buwangsan group (P<0.05). Conclusion::High-dose modified Buwangsan could attenuate neuroinflammation in the hippocampus of AD mouse model via inhibiting the expression of NLRP3, Caspase-1 and IL-1β, which may be the mechanisms of modified Buwangsan could be used to ameliorate the learning and memory ability of AD mouse model.
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Objective:To investigate the clinical effect of proprioceptive trainning on patients after anterior cruciate ligament reconstruction. Methods:From March, 2017 to September, 2018, 30 patients after anterior cruciate ligament reconstruction were randomly divided into control group (n = 15) and experimental group (n = 15). All the patients received routine rehabilitation for eight weeks after operation. Then, the control group received routine rehabilitation, while the experimental group received proprioceptive trainning in addition, for eight weeks. They were assessed with Lysholm score, Isokinetic Testing and Training System, and Dynamic Balance Tester eight and 16 weeks of training. Results:Lysholm score increased in both groups after treatment (t > 16.687, P < 0.001), with decrease of error of knee flexion in 15°, 45° and 75° (t > 2.433, P < 0.05), and speed of centre of gravity moving with eyes closed on stable and unstable floors (t > 2.444, P < 0.05). Compared with the control group, Lysholm score was more (t = 4.150, P < 0.05), errors of knee flexion in 15° and 45° were less (t > 2.710, P < 0.05), and speed of centre of gravity moving with eyes closed on unstable floors was less (P<0.05) in the experimental group. Conclusion:Proprioceptive trainning is effective on proprioception and function of knee after anterior cruciate ligament reconstruction, to improve postural control.
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Objective To explore the effects of traditional exercise therapy, such as Taiji Quan, on motor function of lower limbs in stroke patients.Methods From March, 2014 to March, 2016, 105 stroke patients were divided into control group (n = 35), Qigong group (n = 35) and Taiji group (n = 35). All the patients received routine rehabilitation. In addition, the Taiji group exercised with modified 24 type Taiji Quan, while the Qigong group exercised with Baduanjin. They were assessed with Fugel-Meyer Assessment-lower extremities (FMA-LE), and integral electromyography (iEMG) and co-contraction ratio (CR) of tibialis anterior muscle and gastrocnemius were recorded with surface electromyography, before, four weeks and eight weeks after treatment.Results There were 21 cases in the control group, 23 in the Qigong group and 28 in the Taiji group finishing the exercise. At the end of the 8th week, the score of FMA-LE was more in the Taiji group than in the control group (P ＜0.05). The i EMG of tibialis anterior muscle as dorsiflexsion was more in both the Taiji group and the Qigong group than in the control group (P ＜ 0.05). The CR of tibialis anterior muscle was less in the Taiji group than in both the control group and the Qigong group (P ＜ 0.05).Conclusion Both Taiji Quan and Qigong exercise may promote the activities of muscle of legs in the patients with stroke, while Taiji Quan seems to be better in the coordination between active muscles and antagonistic muscles.
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Objective To explore the source of human infection H9N2 avian influenza virus (AIV). Methods Environmental AIV nucleic acid monitoring was conducted for live poultry markets in Changsha city from 2014 to 2015, and data of human infection H9N2 subtype AIV cases worldwide were collected. Phylogenetic trees of hemagglutinin(HA), neuraminidase(NA)and non-structural protein(NS)genes from human infection H9N2 subtype AIV, the live poultry markets environmental H9N2 subtype AIV and partial avian H9N2 subtype AIV were constructed using the MEGA 6.06 software, respectively. Results In 2014-2015, H9 subtype AIV had the highest nucleic acid positive rate (44.76%) in the live poultry markets environment of Changsha city, and the pollution was serious. A total of 27 cases of human infection with H9N2 subtype AIV had been reported worldwide, and most of these patients recovered after treatments.Epidemiological survey showed that 59.26% (16/27) of cases had a clear history of exposure to poultry or live poultry markets. The phylogenetic trees of HA, NA and NS genes showed that the human infection H9N2 subtype AIV isolates isolated from Hunan and Guangdong were closely related to the H9N2 subtype AIV isolated from the live poultry markets environment in Hunan and Guangdong provinces from 2013 to 2016. The nucleotide similarity was as high as 97%-99%. Conclusion Live poultry market is one of the sources of human infection with H9N2 influenza virus.
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<p><b>OBJECTIVE</b>To investigate clinical efficacy and safety of CMOD regimen as the first treatment for the aged new-diagnosed patients with peripheral T-cell lymphoma.</p><p><b>METHODS</b>Seventy-six patients diagnosed as peripheral T cell lymphoma according to chemotherapy were divided into the 2 group: A and B groups. The patients in A group received CMOD regimen (38 cases) and the patients in B group received CHOP regiment (38 cases). The clinical efficacy, PFS (progression-free survival), OS and the adverse reactions in the 2 groups were compared.</p><p><b>RESULTS</b>The total effeciency rate was not statistically different between CMOD(64.52%) and CHOP groups (58.06%) (P>0.05). The adverse reactions in 2 groups were as follows: myelosuppression, mucositis, gastrointestinal reactions, fever, liver dysfunction, neurotoxicity, and alopecia etc. The incidence of alopecia and the grade III and IV of neutropenia in the CMOD group (34.21%, 13.16%) were statistically significantly lower than those in the CHOP group (84.21%, 34.21%) (P<0.05). The progression-free survival and 1-year overall survival of observation group (10.98±2.23 months, 14.43±2.48 months) were significantly higher than those in the CHOP group(8.31±2.62 months, 10.93±2.07 months) (P<0.05).</p><p><b>CONCLUSION</b>The clinical efficacy of CMOD regimen has been confirmed to be equivalent with CHOP regimen for the aged new-diagnosed patients with peripheral T-cell lymphoma. This regimen can prolong the progression-free survival and overall survival to some extent and reduce the incidence of hair loss and neutropenia, which may be applied to the clinical practice.</p>
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<p><b>OBJECTIVE</b>To study the role of non-classical NF-κB signaling pathway in B acute lymphoblastic leukemia (B-ALL).</p><p><b>METHODS</b>The bone marrow samples from 48 patients with B-ALL were collected from March 2015 to March 2016. The real-time quantitative RT-PCR was used for determing mRNA expression levels of NF-κB family members; the NF-κB DNA binding activity in B-ALL cell nucleus was analyzed by ELISA; the apoptosis rate of B-ALL cells alone or co-cultured with bone marrow stromal cells (hBMSC) was determined by flow cytometry.</p><p><b>RESULTS</b>Relative expression level of mRNA for NF-κB family members, including the Rel A, Rel B, P50 and P52 in ALL-B group was statistically significantly higher than that in normal control group (P<0.05). The clinical characteristics of B-ALL patients with different NF-κB activity were not significantly different (P> 0.05); after B-ALL cells cultured alone or co-cultured, the apoptosis rate of Rel A/ Rel Bgroup was statistically significantly higher than that in Rel A/ Rel Bgroup (P<0.05); the apoptosis rate of B-ALL cells cultured alone or co-cultured with hBMSC was significantly different.</p><p><b>CONCLUSION</b>Non-classical NF-κB signal marked by Rel B can be used as a new target for B-ALL treatment.</p>
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Hydroxysafflor yellow A (HSYA) is a main active monomer purified from Carthamus tinctorius L. The research is to study the inhibitory effect of HSYA on the inflammatory signal transduction pathway related factors which were induced by permanent cerebral ischemia in rats. By using the successive administration at a 30 min interval of HSYA and the rats permanent focal cerebral ischemia model established by a intraluminal suture occlusion method. After cerebral artery occlusion 3, 6, 12 and 24 h, cortex was removed for the next experiments. Western blotting was used to detect the expression of p65 protein and the phospho-IkappaB-alpha (pIkappaB-alpha) in the cytoplasm and nucleus. Nuclear factor-kappaB (NF-kappaB) DNA binding activity was measured by Trans-AM transcription factor assay kits. mRNA expression of cytokines TNF-alpha, IL-1beta, IL-6 and IL-10 was measured by the RT-PCR method. The result showed that intravenous injection of HSYA (10 mg x kg(-1)) to rats after cerebral occlusion, the p65 translocation activity and the phosphorylation of IkappaB-alpha were significantly inhibited. At the same time, HSYA suppressed p65 binding activity and the transcriptional level of pro-inflammatory cytokines including TNF-alpha, IL-1beta and IL-6, and promoted the mRNA expression of anti-inflammatory cytokine IL-10. In conclusion, the anti-cerebral ischemic mechanism of HSYA may be due to its inhibition of NF-kappaB activity and the mRNA expression of cytokines in the inflammatory transduction pathway.
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Animals , Male , Rats , Brain Ischemia , Metabolism , Carthamus , Chemistry , Chalcone , Pharmacology , Cytokines , Genetics , Flowers , Chemistry , I-kappa B Proteins , Metabolism , Interleukin-10 , Genetics , Interleukin-1beta , Genetics , Metabolism , Interleukin-6 , Genetics , NF-KappaB Inhibitor alpha , Neuroprotective Agents , Pharmacology , Phosphorylation , Plants, Medicinal , Chemistry , Protein Transport , Quinones , Pharmacology , RNA, Messenger , Metabolism , Rats, Sprague-Dawley , Signal Transduction , Transcription Factor RelA , Metabolism , Tumor Necrosis Factor-alpha , MetabolismABSTRACT
To decrease the oxygen content in the cell is a key method to improve hydrogen production in Chlamydomonas reinhardtii.A new approach was developed by transforming the leghemoglobin gene lba,which has high affinity to oxygen,into the chloroplast of C.reinhardtii to get a low dissolved oxygen in the cell and result into improvement of H2 ase activity and H2 yield. The results showed that lba was successfully transformed into the chloroplast of C.reinahrdtii strain 849 and did not affect its growth significantly. The work paved the road for further regulation of lba expression in the chloroplast to improve of hydrogen production of C.reinahrdtii.
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<p><b>AIM</b>To investigate the possible effect of tetramethylpyrazine (TMP), an active ingredient of a commonly used Chinese herb, on the pharmacokinetics of cyclosporine A (CsA) by intragastric administration in rats.</p><p><b>METHODS</b>Forty male Sprague-Dawley rats were equally divided into four groups by randomized block design according to weight. On the first day, after each fasting rat was intragastrically administered CsA (10 mg x kg(-1)), blood samples (0.2 - 0.25 mL) were collected from the tail vein at 0, 1, 2, 3, 4, 6, 8, 12, 24, 36 and 48 h. From day 4 to day 8, each group began to undergo different pretreatments with intragastric administration of water, verapamil (Ver), low and high dose TMP, separately. On day 9, each group intragastrically co-administered CsA (10 mg x kg(-1)) and different pretreatment compounds mentioned above, then blood samples were collected according to the schedule of the first day. The whole blood concentration of CsA was determined by HPLC. Main pharmacokinetic parameters were calculated and compared by statistic analysis.</p><p><b>RESULTS</b>In the group of water pretreated and co-administrated with CsA, no significantly different pharmacokinetic parameters of CsA were found. After Ver pretreatment and co-administration with CsA, AUC(0-48 h) and C(max) were increased significantly (P < 0.01 and P < 0.05); T(1/2) beta and CL were markedly prolonged and decreased (P < 0.05); T(max) and V were not apparently influenced. After low dose TMP pretreatment and co-administration with CsA, there was no significant difference in the pharmacokinetic parameters of CsA, in spite of the increasing trends of AUC(0-48 h) and C(max). After high dose TMP pretreatment and co-administration with CsA, AUC(0-48 h) and C(max) of CsA were increased significantly (P < 0.01), but there was no significant change in other parameters.</p><p><b>CONCLUSION</b>It was indicated that the high dose of TMP could apparently increase the intragastric absorption extent of CsA, while almost had no effect on its elimination process.</p>