Background
Tartary buckwheat are very popular as an important functional food material and its cultivation is very widespread in our whole world, but there obviously lack works in the researches of ...genetic breeding for agricultural and medicinal utilization. The aim of this study is to obtain good germplasm resources for agricultural and medicinal use of tartary buckwheat (
Fagopyrum tataricum
) by inducing the tetraploid plants.
Results
Four cultivars of
F. tataricum
, that is, Qianwei 2#, Jinku 2#, Chuanqiao 1#, and Liuqiao 1# were selected to experiment. The tips of seedlings with two true leaves were treated by 0.25% (w/v) colchicine solution for 48, 72, and 96 h, respectively. The chromosome number of treated plants was determined by metaphase chromosome counting of root tip cells and PMCs (pollen mother cells) meiosis observation. Tetraploid induction successfully occurred in all three treatments with an efficiency ranging from 12.13 to 54.55%. The chromosome number of the diploid plants was 2
n
= 2
x
= 16, and that of the induced tetraploid plants was 2
n
= 4
x
= 32. The typical morphological and physiological qualities were compared between the control diploid and corresponding induced tetraploid plants. Results showed that the induced tetraploid plants had obviously larger leaves, flowers, and seeds. Moreover, the content of seed protein and flavonoid were also increased in the tetraploid plants. The pollen diameter and capsule size of diploid plants were significantly smaller than those of tetraploid plants.
Conclusion
Fagopyrum tataricum
can be effectively induced into tetraploids by colchicines. The tetraploid induction can produce valuable germplasm resources for breeding and is a practicable breeding way in
F. tataricum
.
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DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Plasma jet has extensive application potentials in various fields, which normally operates in a diffuse mode when helium is used as the working gas. However, when less expensive argon is used, the ...plasma jet often operates in a filamentary mode. Compared to the filamentary mode, the diffuse mode is more desirable for applications. Hence, many efforts have been exerted to accomplish the diffuse mode of the argon plasma jet. In this paper, a novel single-needle argon plasma jet is developed to obtain the diffuse mode. It is found that the plasma jet operates in the filamentary mode when the distance from the needle tip to the central line of the argon stream (
d
) is short. It transits to the diffuse mode with increasing
d
. For the diffuse mode, there is always one discharge pulse per voltage cycle, which initiates at the rising edge of the positive voltage. For comparison, the number of discharge pulse increases with an increase in the peak voltage for the filamentary mode. Fast photography reveals that the plasma plume in the filamentary mode results from a guided positive streamer, which propagates in the argon stream. However, the plume in the diffuse mode originates from a branched streamer, which propagates in the interfacial layer between the argon stream and the surrounding air. By optical emission spectroscopy, plasma parameters are investigated for the two discharge modes, which show a similar trend with increasing
d
. The diffuse mode has lower electron temperature, electron density, vibrational temperature, and gas temperature compared to the filamentary mode.
•HPLC fingerprints of CR herbs and dispensing granules compared to find markers.•Major characteristic components identified by LC-PDA-QTOF-MS/MS analysis.•Ferulic acid, senkyunolide I, senkyunolide H ...quantified in CR dispensing granule.•Senkyunolide I as quantitative marker for quality control of CR dispensing granule.
A high performance liquid chromatography-photodiode array detector (HPLC-PDA) fingerprinting and ultra high performance liquid chromatography-photodiode array detector coupled with quadrupole time-of-flight mass spectrometry (UHPLC-PDA-QTOF-MS/MS) based chemical profiling approach was developed to rapidly find characteristic chemical markers for quality control of dispensing granules, taking Chuanxiong Rhizoma (CR) as a model herb. Firstly, CR crude drugs, their traditional decoctions and CR dispensing granules were analyzed by HPLC-PDA to rapidly establish the fingerprints and thereby generate the simulative median chromatograms of CR crude drugs, decoctions and dispensing granules, and by comparing the simulative median chromatograms, major characteristic peaks of CR decoctions and dispensing granules could be determined. Secondary, UHPLC-PDA-QTOF-MS/MS was used to identify the major characteristic peaks of CR decoctions and dispensing granules. The identities of three major peaks were elucidated and confirmed to be ferulic acid (1), senkyunolide I (2) and senkyunolide H (3) by comparing the mass/UV spectra and retention times with that of the reference compounds. Thirdly, an HPLC-PDA method was validated to quantify the three characteristic components in commercial CR dispensing granules. The average contents of ferulic acid and senkyunolide H were found to be less than 1.0mg/g, whereas that of senkyunolide I was 4.40mg/g in CR dispensing granules, which indicated that senkyunolide I might be chosen as a suitable quantitative marker, while ferulic acid and senkyunolide H as qualitative markers for the quality evaluation of CR dispensing granules. It is suggested that this newly established approach could be used to practically and rapidly find suitable marker compounds for quality control of dispensing granules derived from other medicinal herbs.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
A phase II study was performed to investigate the efficacy and the safety of a 3-week schedule of paclitaxel (PTX) plus cisplatin (DDP) combined with concurrent radiotherapy for esophageal squamous ...cell cancer.
Patients with newly diagnosed esophageal squamous cell cancer who had histologic proof of local-regional carcinoma of the esophagus, a Karnofsky performance status of 80 or greater, and normal liver, renal, and bone marrow functions were enrolled in the phase II trial. Chemotherapy consisted of DDP (25 mg/m/d) for 3 days plus PTX (175 mg/m) given for 3 hours, every 3 weeks for 4 cycles. The total dose of concurrent radiation with 68.4 Gy/44 Fx (late course-accelerated radiotherapy) or 61.2 Gy/34 Fx (conventional radiotherapy) was given at the first day of chemotherapy.
Between July 2008 and November 2011, 76 patients were enrolled in this trial. The median age was 58 years (range, 37 to 74 y). The stages were stage II (21 patients), stage III (27 patients), and stage IV (28 patients). A total of 89.5% (68/76) and 63.2% (48/76) patients completed ≥2 cycles and all 4 cycles of chemotherapy, respectively. With the median follow-up of 36 months, the overall median survival time was 28.5 months and the progression-free survival time was 14.7 months. One- and 3-year survival rates were 75% and 41%, respectively. Neutropenia grade 3 and 4 occurred in 30.3% and 31.6% of the patients, respectively.
Radiotherapy concurrent with a 3-week schedule of PTX and DDP resulted in an encouraging overall survival rate, but a relatively higher hematological toxicity.
Traditional Chinese medicine (TCM) has been widely integrated into cancer care in China. Since a review done in 2011, large numbers of randomised controlled trials (RCTs) have been published in the ...Chinese literature. We aimed to summarise the current evidence of relevant RCTs of TCM for cancer treatment to support further clinical practice and research.
The update was done in four main Chinese databases (China National Knowledge Infrastructure, Chinese Scientific Journal Database, SinoMed, and Wanfang Database) from their inception until June 18, 2017, to identify any RCTs using TCM. We bibliometrically analysed the included RCTs and the research directions of TCM for cancer treatment.
We included 5834 RCTs (involving 477 147 participants). Only 62 publications were indexed in MEDLINE. The main three cancers treated with TCM were lung cancer, stomach cancer, and breast cancer. 4752 RCTs (81·5%) used TCM combined with conventional treatment whereas 1082 RCTs (18·5%) used only TCM in treatment groups for symptoms and side-effects. Herbal medicine was the most frequently applied TCM therapy (5087 RCTs; 87·2%). The most frequently reported outcome was clinical symptom improvement (3712 RCTs; 63·6%) followed by quality of life (2725 RCTs; 46·7%) and biomarker indices (2384 RCTs; 40·9%). 1237 RCTs (21·2%) reported multiple indices to provide a composite outcome to measure cancer patients' general condition. 4051 RCTs (69·4%) concluded that in comparison with conventional treatment, TCM alone or combined with conventional treatment had a better effect in cancer care.
Substantial data showed that many different TCM treatments are being applied either as monotherapy for palliative treatment or in combination with conventional medicine for treatment. We need further comprehensive evaluation of the beneficial effects and safety of these TCM modalities, and we should focus on quality of life and explore why patients with cancer are taking TCM.
Key project of National Natural Science Foundation of China (81830115).
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Angiogenesis in atherosclerotic plaque plays a critical role in the mechanism of atherosclerotic physiopathology. Present consensus shows that angiogenesis in atherosclerotic plaque is mainly ...resulted in hypoxia, inflammation and some pro-angiogenic factors. The homeostasis in plaque, which is hypoxic and infiltrated by inflammatory cells, may lead to angiogenesis, increase the plaque instability and the incidence rate of vascular events. This article reviews the progression of pathogenetic mechanism, physiopathological significance, relevant detecting technique and corresponding therapeutic methods of Chinese and Western medicine of angiogenesis in atherosclerotic plaque, so as to provide more theoretical basis for atherosclerotic clinical treatment.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Congenital heart disease (CHD) is the most common birth defect and is the most prevalent non-infectious cause of infant death. Aggregating evidence demonstrates that genetic defects are involved in ...the pathogenesis of CHD. However, CHD is genetically heterogeneous and the genetic determinants for CHD in an overwhelming majority of patients remain unknown. In this study, the coding regions and splice junctions of the
NKX2.6
gene, which encodes a homeodomain transcription factor crucial for cardiovascular development, were sequenced in 210 unrelated CHD patients. As a result, a novel heterozygous NKX2.6 mutation, p.K152Q, was identified in an index patient with ventricular septal defect (VSD). Genetic analysis of the proband’s available family members showed that the mutation cosegregated with VSD transmitted as an autosomal dominant trait with complete penetrance. The missense mutation was absent in 400 control chromosomes and the altered amino acid was completely conserved evolutionarily across species. Due to unknown transcriptional targets of NKX2.6, the functional characteristics of the identified mutation at transcriptional activity were analyzed by using NKX2.5 as a surrogate. Alignment between human NKX2.6 and NKX2.5 proteins displayed that K152Q-mutant NKX2.6 was equivalent to K158Q-mutant NKX2.5, and introduction of K158Q into NKX2.5 significantly reduced its transcriptional activating function when compared with its wild-type counterpart. This study firstly links NKX2.6 loss-of-function mutation with increased susceptibility to isolated VSD, providing novel insight into the molecular mechanism underpinning VSD and contributing to the development of new preventive and therapeutic strategies for this common form of CHD.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
To systematically review the safety and efficacy of routine Western medicine (WM) plus Chinese drugs for no-flow or slow flow after coronary revascularization.
CNKI, VIP, CBM, Wanfang Data, PubMed, ...The Cochrane Library, EMBase, and other relevant databases were electronically searched. Literatures were also manually retrieved from related journals. Randomized control trials of treating no-flow or slow flow patients after coronary revascularization by routine WM treatment plus Chinese drugs were retrieved. The quality of retrieved literature was assessed by methods from Cochrane Handbook. Valid data were extracted and analyzed by meta-analysis using RevMan5. 1.0 Software. Results Totally 5 trials including 526 patients with poor general quality were included.
of meta-analyses showed that compared with the routine WM treatment group, additional use of Chinese drugs could improve thrombolysis in myocardial infarction (TIMI) RR =0. 16, 95% Cl (0.07, 0.34), P < 0.01; reduce elevated ST segment significantly RR
To systematically review the safety and efficacy of Qishen Yiqi Dripping Pill (QYDP) as a complementary treatment for chronic heart failure (CHF) patients.
CNKI, VIP, Wanfang Data, PubMed and ...Cochrane Library were retrieved for papers on randomized control trials of treating CHF patients by routine western medical treatment plus QYDP. The quality of inclusive literatures was assessed by methods from Cochrane Handbook. Valid data were extracted and analyzed by Meta-analysis using RevMan 5.1.0 Software.
Totally 17 trials and 1840 patients in line with standard were included. Results of Meta-analysis showed, compared with the routine Western medical treatment group, additional use of QYDP could decrease re-admission rate RR = 0.52, 95% CI (0.33, 0.81), P = 0.004 and the mortality rate, improve the clinical efficacy RR = 1.18, 95% CI (1.12, 1.25), P < 0.01 and cardiac function RR = 1.18, 95% CI (1.10, 1.27),P < 0.01, increase left ventricular ejection fraction (LVEF) WMD = 5.57, 95% CI (4.16, 6.97), P < 0.
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