摘要
Objective:To evaluate the effect of venous excess ultrasound score (VExUS Score) in the acute kidney injury(AKI) in Patients with sepsis, so as to reduce the risk of disease and improve the prognosis of patients.Methods:This experiment was a single-center prospective cohort study. Include septic patients with AKI who were admitted to the Department of Emergency Intensive Care Unit of the First Affiliated Hospital of Anhui Medical University from February 2022 to February 2023, Those with inadequate window, inferior vena cava (IVC) thrombus, age<18 years and known case of cirrhosis with portal hypertension were excluded from the study. Patients underwent ultrasound examination with serial determination till AKI resolved or patient is initiated on dialysis.Results:Totally 86 patients were enrolled for the study. The mean age was (60.43±15.48) with 50 (58.1%) males. Mean sequential organ failure assessment (SOFA) score was (6.23±1.87). 38 patients (44.2%) were in AKI stage 1, while 24 patients (27.9%) were in AKI stage 2 and stage 3 each. 52 patients (60.5%) had VExUS grade Ⅲ. Resolution of AKI injury showed significant correlation with improvement in VExUS grade ( p value 0.003). Similarly, there was significant association between changes in VExUS grade and fluid balance ( p value 0.005). There was no correlation between central venous pressure (CVP), left ventricular function, and right ventricular function with change in VExUS grade. Conclusions:The study shows a significant correlation between the VExUS Score and AKI staging, With improvement in kidney function, there is decline in the VExUS grade as well. Moreover VExUS Score might reliably demonstrate venous congestion and aid in the clinical decision to perform fluid removal.
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Objective@#To preliminarily develop Health Literacy Scale for pupils, providing a tool for dynamic monitoring and related health literacy research among pupils.@*Methods@#Through policy and literature review, the health literacy evaluation index system of pupils was established. Through two rounds of expert consultation, the evaluation index system and scale item pool of three levels in primary school were formed, and "Evaluation Scale 1.0" was developed. Through two panel discussions, health education experts, teachers and students were invited to provide advices on the content, expression and structure of scale 1.0, turning it into "Evaluation Scale 2.0", and completing the preliminary development of the scale.@*Results@#The health literacy assessment index system of primary school students includes three levels,including level-1 was Grade 1-2, level-2 was Grade 3-4,level-3 was Grade 5-6, covering two level indexes. The scale for primary school students contained five horizontal dimensions and four vertical dimensions. In the Delphi consultation, the response rate was 100%, and the authority coefficient was 0.85. After item selection and modification, the final version of level-1, level-2 and level-3 scales contained 36, 44 and 50 items respectively.@*Conclusion@#The development of Health Literacy Evaluation Scale for pupils has high applicability and practical value.
摘要
With the continuous development of traditional Chinese medicine (TCM), the requirement for the quality of Chinese medicines has become increasingly higher since they have been widely used in clinical practice. Chinese medicinal materials are the material basis for the inheritance and development of TCM, and their quality directly affects the clinical efficacy. Studying the quality of Chinese medicinal materials is the key to ensure the quality and realize the large-scale application. As one of rare Chinese medicinal materials, Cistanches Herba has the functions of tonifying kidney yang, invigorating blood and essence, moistening intestines to relieve constipation. High-quality Cistanches Herba is characterized by glossy appearance, high density, fleshy and soft texture, and sweet taste. With the reduction of wild resources, the products from cultivated Cistanche deserticola or C. tubulosa become dominant on the market of Cistanches Herba. The cultivation areas are widely distributed, mainly concentrated in Gansu, Inner Mongolia, and Xinjiang. However, the cultivated products have varied quality due to the differences in germplasm, producing region, cultivation method, harvesting, and processing. According to the theories of quality evaluation based on morphological characteristics and excellent appearance indicating high quality, this paper reviewed the literature on the quality evaluation, growth, development, and processing of Cistanches Herba in the last decade to explore the main factors (genetic characteristics, environmental conditions, and harvesting and processing factors) affecting the quality of Cistanches Herba. The review aims to explore the factors for the high quality and provide a reference for the producing region screening, directional cultivation, and production of Cistanches Herba.
摘要
Alzheimer' disease(AD)is a neurodegenerative disorder characterized by memory impairment and multiple cognitive deterioration.Acupuncture intervention in AD has potential efficacy,but the mechanism of onset is not clear.Blood oxygen level-dependent functional magnetic resonance imaging(BOLD-fMRI)has the unique advantages of accurately locating abnormal AD brain areas and monitoring and analyzing functional activities,providing technical support for the study of AD brain effects.It have found that abnormal changes in functional activity in response to brain regions and brain networks are closely related to the development of AD.Previous studies have shown that acupuncture can exert therapeutic effects by improving the functional impairment of multiple cognitive-related brain regions and brain networks in AD,which may be the mechanism of brain function in AD.Based on BOLD-fMRI technology,this paper elaborates on three aspects:commonly used data analysis methods of AD,the brain function mechanism of AD pathogenesis,and the brain effect study of acupuncture intervention in AD.In order to provide a reference for further exploring the brain effect of acupuncture intervention in AD.
摘要
Objective:To observe the efficacy of gentle moxibustion combined with Western medicine in treating rheumatoid arthritis(RA)due to damp heat affecting bones/joints to further certificate the scientific nature of the theory that"heat pattern can be treated by moxibustion therapy". Methods:A total of 78 patients with RA due to damp heat affecting bones/joints were divided into an observation group and a control group using the random number table method,with 39 cases in each group.The control group was treated with regular Western medicine,on the basic of which the observation group was treated with additional gentle moxibustion.Patients in the observation group received gentle moxibustion therapy once a day for 8 weeks with a one-day rest every 2 weeks.The wrist circumference,wrist pain degree,skin color and temperature of the wrist,and range of dorsiflexion motion of the wrist in the two groups of patients were compared before and after treatment under the condition of safety observed. Results:The total effective rate in the observation group was 94.9%,which was higher than the result of 79.5%in the control group(P<0.05).Among the quantitative indicators of syndrome differentiation,the wrist circumference,pain degree,skin temperature,and range of dorsiflexion motion in both groups were significantly improved(P<0.01),and the improvements were more significant in the observation group than in the control group(P<0.05).The skin color of the wrist joint was improved in both groups after treatment(P<0.05),and there was no statistical significance in comparing the improvement of skin color and the occurrence of adverse reactions between the two groups(P>0.05). Conclusion:Compared with Western medicine treatment alone,the combination of gentle moxibustion and Western medicine treatment has significantly better treatment efficacy and shares high safety,which helps to prove the scientific nature of the theory that"heat pattern can be treated by moxibustion therapy".
摘要
Objective: To explore the abnormal changes in neuroelectric activity in the primary visual cortex of rats deprived of vision in one eye and to investigate the regulatory effect of acupuncture in the sensitive period on the abnormal coding and conduction of electrical signals of rats' optic neurons.Methods: Sixty 14-day-old Sprague-Dawley rats were randomly divided into a blank group, a model group, an early-stage acupuncture group, a middle-stage acupuncture group, and a late-stage acupuncture group, with 12 rats in each group. Rats in every group except the blank group received right eyelid suturing to create a monocular deprivation model in the sensitive period of visual development (from the day rats open their eyes to the 45th day after their birth). Rats in the three acupuncture groups started to undergo acupuncture respectively on the 3rd, 12th, and 21st days after the model replication was done, with each group receiving nine-day treatment. The activity level of the neuroelectrical signal of the primary visual cortex in each group, including the latency and amplitude of P100 wave, average discharge frequency and amplitude of neurons, the power spectral density (PSD), and interspike interval (ISI), were measured by neuroelectric evaluation technology after the acupuncture treatment was finished. Results: Compared with the blank group, the latency of P100 wave in the visual center of vision-deprived eyes was significantly prolonged, and the amplitude was significantly reduced (P<0.05); the average discharge frequency and amplitude of the neurons in the visual cortex also decreased significantly (P<0.05); PSD decreased and ISI was prolonged significantly (P<0.05). Compared with the model group, the abnormal electrical activity of optic neurons in the three acupuncture groups ameliorated, the latency of P100 shortened, and the amplitude of P100 increased (P<0.05), the discharge frequency and amplitude increased significantly (P<0.05), the PSD reduced, and the ISI shortened (P<0.05). In addition, among the three acupuncture groups, the early-stage acupuncture group had the best effect on various indicators. Conclusion: Abnormal electrophysiological activity is significant in the visual center of vision-deprived rats, and acupuncture treatment in the sensitive period of visual development can enhance the bioelectrical activity of visual nerve cells, improve the efficiency of optic nerve conduction, and regulate the inhibition and retardation of visual response caused by visual deprivation.
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ObjectiveTo analyze the sequence variation and genetic diversity of 47 Isatis indigotica germplasm materials, and carry out the study on the genetic differentiation and structure. MethodGenomic DNA of 47 I. indigotica germplasm materials were extracted by kit extraction method. Two chloroplast DNA (cp DNA) sequences and five inter-simple sequence repeat (ISSR) primers were used for amplification and sequencing. Chromas, Mega 7.0, DanSP5, and GenALEx were used to calibrate, splice, and analyze the sequence characteristics. PERMUT and PopGen 1.31 were used to analyze the genetic diversity parameters and genetic structure, and NTSYS was used to obtain the unweighted pair-group method with arithmetic means(UPGMA) clustering tree plot of 47 I. indigotica germplasm materials. ResultA total of 129 samples from 47 I. indigotica germplasm materials were successfully amplified and sequenced. The length of 2 cp DNA sequences after spliced was 1 412 bp, and there were 377 polymorphic variation loci, and 36 haplotypes. Fu and Li's D* test was significant (P<0.01). The values of Pi, HS, and HT based on cp DNA were 0.119 89, 0.787, and 0.891, respectively. The genetic differentiation coefficients of gene differentiation coefficient(Gst), nucleotide differentiation coefficient(Nst), and fixation index(Fst) were 0.117, 0.468, and 0.488, respectively, and the gene flow (Nm) was 0.615. The mean values of PPB, Shannon information diversity index(I), Nei's genetic diversity index(H), and Gst based on ISSR were 78.85%, 0.334 8, 0.218 6, and 0.754 4, respectively, and the Nm value was 0.162 8. ConclusionI. indigotica has high genetic diversity and abundant haplotypes at the species level, with abundant haplotypes. Genetic differentiation among different germplasm materials is obvious, and gene exchange is not frequent. Genetic variation mainly exists among populations. The population has accumulated various low-frequency gene mutations recently, suggesting that it has experienced significant regional expansion in the history.
摘要
ObjectiveTo analyze the sequence variation and genetic diversity of 47 Isatis indigotica germplasm materials, and carry out the study on the genetic differentiation and structure. MethodGenomic DNA of 47 I. indigotica germplasm materials were extracted by kit extraction method. Two chloroplast DNA (cp DNA) sequences and five inter-simple sequence repeat (ISSR) primers were used for amplification and sequencing. Chromas, Mega 7.0, DanSP5, and GenALEx were used to calibrate, splice, and analyze the sequence characteristics. PERMUT and PopGen 1.31 were used to analyze the genetic diversity parameters and genetic structure, and NTSYS was used to obtain the unweighted pair-group method with arithmetic means(UPGMA) clustering tree plot of 47 I. indigotica germplasm materials. ResultA total of 129 samples from 47 I. indigotica germplasm materials were successfully amplified and sequenced. The length of 2 cp DNA sequences after spliced was 1 412 bp, and there were 377 polymorphic variation loci, and 36 haplotypes. Fu and Li's D* test was significant (P<0.01). The values of Pi, HS, and HT based on cp DNA were 0.119 89, 0.787, and 0.891, respectively. The genetic differentiation coefficients of gene differentiation coefficient(Gst), nucleotide differentiation coefficient(Nst), and fixation index(Fst) were 0.117, 0.468, and 0.488, respectively, and the gene flow (Nm) was 0.615. The mean values of PPB, Shannon information diversity index(I), Nei's genetic diversity index(H), and Gst based on ISSR were 78.85%, 0.334 8, 0.218 6, and 0.754 4, respectively, and the Nm value was 0.162 8. ConclusionI. indigotica has high genetic diversity and abundant haplotypes at the species level, with abundant haplotypes. Genetic differentiation among different germplasm materials is obvious, and gene exchange is not frequent. Genetic variation mainly exists among populations. The population has accumulated various low-frequency gene mutations recently, suggesting that it has experienced significant regional expansion in the history.
摘要
ObjectiveTo conduct genetic variation analysis of 11 cultivars and 7 wild populations of Angelica sinensis in Gansu province based on the chloroplast gene (cp DNA), and provide references for germplasm identification and breeding of new cultivars of A. sinensis. MethodThree pairs of cp DNA primers were used for polymerase chain reaction (PCR) amplification and sequencing of A. sinensis samples. MegaX was used to perform statistics on sequence characteristics and calculate mean genetic distances among A. sinensis populations. Unweighted pair-group method with arithmetic means (UPGMA) clustering tree based on genetic distance was constructed by NTSYS 2.10e. DanSP v6 was used to calculate sequence polymorphism and Tajima's D of A. sinensis. PERMUT was used to calculate the population structure of A. sinensis. Arlequin v3.5 was used to perform molecular variation analysis, and PopART1.7 was used to construct TCS haplotype network. ResultThree pairs of cp DNA primers were amplified, sequenced, compared, and combined to give a sequence length of 1 759 bp. One variable site was detected in the wild A. sinensis and 480 variable sites were detected in the cultivated A. sinensis, including 97 singleton variable sites, 383 parsimony informative sites, and 152 insertion-deletion sites. In the three regions of matK, psbA-trnH, and rbcL of cp DNA in the wild and cultivated A. sinensis, matK was the region with the highest polymorphism. Tajima’s D of all the combined sequences of A. sinensis were not significantly negative, but psbA-trnH and rbcL genes of the cultivated A. sinensis were significantly negative, indicating that the A. sinensis followed neutral evolution on a whole, while psbA-trnH and rbcL genes had undergone selection. The degree of genetic differentiation (Fst=0) among wild populations was lower than that among cultivated populations (Fst=0.114 19, P<0.05). The degree of genetic differentiation between wild and cultivated A. sinensis was relatively high (Fst=0.942 55, P<0.01). Genetic variation in the cultivated A. sinensis was mainly found within the populations (89%). UPGMA cluster tree based on genetic distance showed that the wild A. sinensis and the cultivated A. sinensis were clustered into one branch, respectively, with a distant genetic relationship, and the population 3 in the cultivated A. sinensis was far from other cultivated populations. The TCS haplotype network consisted of 15 haplotypes and 4 unknown haplotypes, which was divided into 3 parts, with a large number of variations among each part. Shared haplotypes were only found in the wild or cultivated groups, and there were no shared haplotypes between groups. ConclusionThe genetic diversity of A. sinensis was low at species level, and the population diversity of the wild was lower than that of the cultivated. The degree of genetic differentiation between the wild and the cultivated A. sinensis was high, but that in the wild and the cultivated populations were low. Genetic variation in the cultivated A. sinensis was mainly found within populations.
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Objective:To systematically review evidence for the effect of convalescent plasma and immunoglobulin on treatment of severe acute respiratory syndrome (SARS), and further provide advice on the treatment of coronavirus disease 2019 (COVID-19).Methods:Clinical studies of convalescent plasma and immunoglobulin in the treatment of SARS were collected from a variety of databases such as PubMed, Cochrane Library, Web of Science, Embase, CNKI, VIP, Wanfang, and CBM from November 2002 to March 2020. Two researchers independently screened the literature, extracted the data, and assessed the risk of bias based on the national institute for health and clinical excellence case series quality scale, and systematically evaluated the results.Results:A total of 10 clinical studies, including 212 patients, were eventually included. There were 4 case series studies, 5 case reports and 1 case-control study. Most studies were with low or very low quality. The systematic analysis showed that 107 patients administered convalescent plasma and 16 patients used immunoglobulin during the treatment of SARS. Forty-nine patients were definitely not treated with the above two methods, and the remaining 40 patients were not reported clearly. The treatment of convalescent plasma and immunoglobulin could both improve the symptoms and reduce the mortality (12 died), and most SARS patients got better, while 11 SARS patients who did not receive the above therapies died.Conclusions:Convalescent plasma and immunoglobulin were effective on relieving symptoms of SARS patients. However, due to low quality and lacking of control group, convalescent plasma and immunoglobulin should be used with caution to treat COVID-19 patients.
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Through detailed investigation of the market circulation of Ligustici Rhizoma et Radix, at the same time, this article collected relevant articles, conducted comparative study on genuine and conventionally used Ligustici Rhizoma et Radix from the aspects of textual research, functions, chemical composition and pharmacological effect, and discussed the results of the study.
摘要
'Three-acupoint and Five-needle Method' is a summary of Prof. Shao Jing-ming's clinical experience in the treatment of asthma for years. It is used to alleviate asthma during seizure and to improve the pulmonary functions, strengthen the body constitution and prevent recurrence in the remission stage. This article introduces the theoretic source and basic principle, and concrete operating method, i.e. puncturing bilateral Feishu (BL 13), Dazhui (GV 14) and bilateral Fengmen (BL 12), and adding acupoints based upon pattern identification, in combination of moxibustion and cupping therapy for promoting the clinical application of this method.
摘要
Rheumatoid Arthritis (RA) is a chronic systemic autoimmune disease. Moxibustion treatment for RA has significant efficacy, with high security and without dependency. It can alleviate the symptoms and make the body gradually return to normal level of immunity at the same time. This article reviewed the study on mechanism of moxibustion for the treatment of RA in recent years from the aspects of innate immunity, humeral immunity, cellular immunity, cytokines and immune organs, discussed the existing problems in relevant study, and provided a basis for clinic and future research.
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Objective: To investigate the electrophysiological mechanism of acupuncture for the visual cortex plasticity during the sensitive period. Methods: Fifty 2-week-old Wistar rats were randomly divided into a blank control group, a model group, an early-stage acupuncture group, a middle-stage acupuncture group and a late-stage acupuncture group, 10 rats in each group. Monocular deprivation amblyopia models were prepared in rats except those in the blank control group by unilateral eyelid suture. After successful modeling, no treatment was applied to the rats in the model group. Rats in each acupuncture group were treated with acupuncture at bilateral Jingming (BL 1), Cuanzhu (BL 2), Fengchi (GB 20) and Guangming (GB 37), started from the 3rd day, 12th day or 21st day after modeling separately, once a day, for a total of 9 d treatment. The neuronal discharge frequency and action potential inter-spike interval (ISI) in the rat visual cortex area 17 of each group were measured by multi-channel microelectrode array nerve signal technique. Results: The discharge number of neurons in the visual cortex of the model group was significantly lower than that in the blank control group (P0.05). The discharge number in the middle-stage acupuncture group was lower than that in the early-stage acupuncture group (P<0.05), and the discharge number of the late-stage acupuncture group was lower than that in the middle-stage acupuncture group (P<0.05). The ISI sequences of the visual cortex neurons were mainly distributed under 0.3 s in the blank control group, under 15 s in the model group, under 1 s in the early-stage acupuncture group, under 4 s in the middle-stage acupuncture group, and under 10 s in the late-stage acupuncture group, divergent in each group. Conclusion: The neuronal coding appears abnormality in the visual cortex area 17 of monocular deprivation rats, indicating that there is a plasticity change in the visual cortex neurons during the sensitive period. Acupuncture has a significant effect on the abnormal neural coding. The therapeutic efficacy is closely related to the stage to start the treatment. Early stage treatment in the sensitive period is the key to achieving the good efficacy.
摘要
<p><b>OBJECTIVE</b>To preliminarily explore the electrophysiological mechanism of acupuncture on plasticity variability of visual cortex.</p><p><b>METHODS</b>Fifty 14-day-old Wistar rats were randomly divided into a blank group, a model group, an early-stage acupuncture group, a middle-stage acupuncture group and a late-stage acupuncture group, 10 rats in each one. Except the blank group, the rats in the remaining groups were treated with eyelid suture to establish the model of monocular deprivation amblyopia. After model establishment, the rats in the blank group and model group were grasped without any intervention everyday. The rats in the acupuncture groups were treated with acupuncture at bilateral "Jingming" (BL 1), "Cuanzhu" (BL 2), "Fengchi" (GB 20) and "Guangming" (GB 37) on the 3rd, 12th and 21st days into model establishment. The needles were retained for 10 min, once a day for totally 9 days. After treatment, the M-NEMEA technology was applied to measure the discharge amplitude and power spectral density of visual cortex area 17 neuron of each group.</p><p><b>RESULTS</b>Compared with the blank group, the number of discharged neuron of visual cortex area 17 was reduced, and the amplitude was significantly reduced in the model group (both<0.05). Compared with the model group, the numbers of discharged neuron were increased, and the amplitudes were significantly increased in the early-stage acupuncture group and middle-stage acupuncture group (all<0.05). The neuron discharge amplitude in the early-stage acupuncture group was higher than those in the middle-stage acupuncture group and late-stage acupuncture group (both<0.05); the neuron discharge amplitude in the middle-stage acupuncture group was higher than that in the late-stage acupuncture group (<0.05). In the 120-second time domain of acquisition, the distribution of power spectral density in the blank group was mainly between -105 dB and -100 dB; compared with the blank group, the power spectral density in the model group was increased and distributed between -132 dB and -124 dB; compared with the model group, the power spectral densities in the acupuncture groups was reduced and distributed between -115 dB and -110 dB in the early-stage acupuncture group, -120 dB and -115 dB in the middle-stage acupuncture group and -129 dB and -122 dB in the late-stage acupuncture group.</p><p><b>CONCLUSIONS</b>There are abnormal changes of spatiotemporal pattern in visual cortex area 17 of monocular deprivation rats, but acupuncture can regulate abnormal spatiotemporal pattern of neuron. Therefore, there is developmental plasticity of visual cortex neuron in the sensitive period, and early treatment is key to superior efficacy.</p>
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Objective: To explore the molecular biological mechanism of acupuncture in intervening visual deprivation. Methods: Forty-eight 2-week old Wistar rats were randomly divided into a normal group, a model group, and 6 acupuncture groups (group C1: acupuncture at the unaffected side in early stage; group C2: acupuncture at the affected side in early stage; group D1: acupuncture at the unaffected side in mid-stage; group D2: acupuncture at the affected side in mid-stage; group E1: acupuncture at the unaffected side in late stage; group E2: acupuncture at the affected side in late stage) by the random number table, 6 rats in each group. Rats in the normal group didn’t receive any interventions. The rat model of deprivation amblyopia was established by unilateral eyelid suture in the model group and each acupuncture group. After successful modeling, rats in model group didn’t receive any treatments; rats in the acupuncture groups received acupuncture intervention which began respectively on the 3rd, 12th and 21st day after modeling. Pattern visual evoked potential (P-VEP) and N-methy D-aspartatreceptor-1 (NMDAR1) mRNA expression in visual cortex area 17 were detected at the end of acupuncture intervention in each group. Results: After the intervention, the P-VEP waveform was significantly changed, with a significantly delayed P100 value (P0.05). Conclusion: P-VEP waveform is abnormal and NMDAR1 mRNA expression in visual cortex area 17 is decreased in rats with monocularly-deprived amblyopia. Acupuncture in the sensitive period can significantly regulate the abnormal P-VEP waveform and the down-regulate the NMDAR1 mRNA expression of the visual cortex of rats with monocularly-deprived amblyopia. Early treatment in the sensitive period should be the key to obtaining the curative effect.
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Objective To investigate the circulation and use of Akebiae Caulis and Clematidis Armandii Caulis;To provide references for clinical safe medication. Methods Literature review, field survey and telephone interview were used to conduct the investigation. Results ① The market currency of the Akebiae Caulis and Clematidis Armandii Caulis was very confused, and the mainly medicinal materials on the market were Clematidis Armandii Caulis. ② The majority used medicinal materials were Clematidis Armandii Caulis, and Akebiae Caulis was rarely used. ③ The Chinese Pharmacopoeia collected Akebiae Caulis and Clematidis Armandii Caulis separately, but there was phenomenon of using Clematidis Armandii Caulis replacing of Akebiae Caulis. Conclusion Market of Akebiae Caulis is shrinking; the phenomenon of using Clematidis Armandii Caulis to replace Akebiae Caulis widespread in clinic. There are differences in the efficacy of Akebiae Caulis and Clematidis Armandii Caulis, so they should be distinguished and cannot be used to mix or substitute.
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OBJECTIVE@#To explore the role of calpain in pulmonary vascular remodeling in hypoxia-induced pulmonary hypertension and the underlying mechanisms. @*METHODS@#Sprague-Dawley rats were randomly divided into the hypoxia group and the normoxia control group. Right ventricular systolic pressure (RVSP) and mean pulmonary artery pressure (mPAP) were monitored by a method with right external jugular vein cannula. Right ventricular hypertrophy index was presented as the ratio of right ventricular weight to left ventricular weight (left ventricle plus septum weight). Levels of calpain-1, -2 and -4 mRNA in pulmonary artery were determined by real-time PCR. Levels of calpain-1, -2 and -4 protein were determined by Western blot. Primary rat pulmonary arterial smooth muscle cells (PASMCs) were divided into 4 groups: a normoxia control group, a normoxia+MDL28170 group, a hypoxia group and a hypoxia+MDL28170 group. Cell proliferation was detected by MTS and flow cytometry. Levels of Ki-67 and proliferating cell nuclear antigen (PCNA) mRNA were determined by real-time PCR. @*RESULTS@#RVSP, mPAP and right ventricular remodeling index were significantly elevated in the hypoxia group compared to those in the normoxia group. In the hypoxia group, pulmonary vascular remodeling was significantly developed, accompanied by up-regulation of calpain-1, -2 and -4. MDL28170 significantly inhibited hypoxia-induced proliferation of PASMCs concomitant with the suppression of Ki-67 and PCNA mRNA expression. @*CONCLUSION@#Calpain mediates vascular remodeling via promoting proliferation of PASMCs in hypoxia-induced pulmonary hypertension.
Subject(s)
Animals , Rats , Calpain , Genetics , Physiology , Cell Proliferation , Dipeptides , Physiology , Hypertension, Pulmonary , Genetics , Hypertrophy, Right Ventricular , Hypoxia , Ki-67 Antigen , Myocytes, Smooth Muscle , Physiology , Proliferating Cell Nuclear Antigen , Pulmonary Artery , Rats, Sprague-Dawley , Real-Time Polymerase Chain Reaction , Up-Regulation , Vascular Remodeling , Genetics , Physiology摘要
A new leaf spot disease was observed on leaves of Rheum palmatum (Chinese rhubarb) in Northwest China (Gansu Province) starting in 2005. A Septoria-like fungus was isolated and completion of Koch's postulates confirmed that the fungus was the casual agent of the leaf spot disease. Morphology and molecular methods were combined to identify the pathogen. The fungus produced conidiomata pycnidia and the conidia were 2~5 septate, 61.2~134.1 µm in length and 3.53~5.3 µm in width, which is much larger than the known Spetoria species that infects Polygonaceae species. Phylogenic analysis of the internal transcribed spacer region confirmed that this Spetoria-like fungus is within the Spetoria genus but distinct from known Spetoria species. Together, these morphological and phylogenetic data support that the R. palmatum infecting Spetoria strain is a newly-described plant pathogenic species.
Subject(s)
China , Classification , Fungi , Plants , Polygonaceae , Rheum , Spores, Fungal摘要
Aim To explore micro RNAs-integrated pathogenic signaling to control endothelial-mesenchy-mal transition ( EndMT ) in pulmonary hypertension ( PH) by a network bioinformatic approach. Methods Literature-mining method was used to find PH-relat-ed genes and EndMT/EMT-related miRNAs. Bioinfor-matic prediction approach ( DIANA3 , Miranda4 , PicT-ar5 , TargetScan6 , miRDB7 and microT-CDS8 ) was used for miRNA target prediction. Hypergeometric a-nalysis was used to predict miRNAs related to EndMT in PH. The analysis of interactions between PH-rele-vant genes( PH network) was performed with the use of Biological General Repository for Interaction Datasets ( BioGRID ) . These miRNAs were ranked with the highest probability of substantial overlap among their gene targets in the PH-network, the relationship be-tween their targets and the PH functional categories which include hypoxia, inflammation, and transforming growth factor/BMP signaling. Then, the part of results was validated by animal experiment. Lastly the miR-NA-Target network was built using Cytocape 3 . Results List of 230 genes was compiled that were directly im-plicated in the development of PH and 189 miRNAs were related to EndMT in PH. Among 189 miRNAs, only 22 microRNAs(miR-let-7 family, miR-124, miR-130 family, miR-135, miR-144, miR-149, miR-155, miR-16-1, miR-17, miR-181 family, miR-182, miR-200 family, miR-204, miR-205, miR-21, miR-224, miR-27, miR-29 family, miR-301a, miR-31, miR-361 and miR-375) were related to hypoxia, inflamma-tion, and transforming growth factor/BMP signaling. Among these miRNAs, the levels of let-7g, miR-21, miR-124 and miR-130 family were significantly changed in the pulmonary artery in hypoxia-induced PH rats. Conclusions Among numerous miRNAs,22 of which may be involved in hypoxia, inflammation, and transforming growth factor/BMP signaling and re-lated to EndMT in PH by network bioinformatic ap-proach, which provides a theoretical basis for further investigation of EndMT in PH.