3.Progress in Ginsenosides Biosynthesis and Prospect of the Secondary Metabolic Engineering for the Production of Ginsenosides
Qiong WU ; Ying-Qun ZHOU ; Chao SUN ; Shi-Lin CHEN ;
China Biotechnology 2006;0(10):-
Ginsenosides,which belongs to triterpenoid saponins of plant terpenoids,are the main active components of the valuable medicinal herbs ginseng and American ginseng.Recent studies show that ginsenosides have a variety of beneficial effects,including anti-inflamatory,antioxidant,and anticancer effects.Ginsenosides are synthesized by complicated modification of triterpenoid skeleton after cyclization of 2,3-oxidosqualene through triterpene saponin synthesis pathway in which they share common early steps with phytosterols synthesis.It outlines recent advances for the biosynthesis of ginsenosides,the cloning and characterization of genes encoding key enzymes in the pathway and the basal framework of ginsenosides biosynthesis pathway.The prospects of secondary metabolism engineering in the biosynthesis of plant natural products and its application in ginsenosides biosynthesis are also discussed.
4.Study on the inhibitory effect of the black garlic extract on the growth of hela cells
Ying LI ; Guiqing YANG ; Qun ZHOU ; Yishan WANG
Journal of Chinese Physician 2015;17(8):1167-1169
Objective To explore the effect of black garlic extract on HeLa cells and its possible molecular mechanisms.Methods Inhibitory rate of HeLa cells was detected with methyl thiazolyl tetrazolium(MTT).Flow cytometry annexin V-fluorescein isothiocyanate/propidium iodide (V-FITC/PI) was used to detect tumor cell apoptosis.Flow cytometry was used to measure cell-cycle changes.Immunohistochemistry method was used to detect expressions of tumor proteins bax and Bcl-2.Results Black garlic extract significantly inhibited the growth of HeLa cells.Black garlic extract significantly induced apoptosis of HeLa cells.The apoptosis rate was (53.26 ± 1.78)% in the black garlic high-dose group,and (3.68 ±0.11)% in the control group.Black garlic extract affected cell cycle,upregulated bax expression,and downregulated bcl-2 expression.Conclusions Black garlic extract significantly induced the apoptosis of HeLa cells.This effect might be caused through increasing G2/M cells or changing expressions of bax and bcl-2.
5.Practice and reflection of pathophysiology teaching based on curriculum integration of organ system
Xinwen ZHOU ; Fuyuan CAO ; Qun WANG ; Ying YANG ; Hanjiao YAN
Chinese Journal of Medical Education Research 2021;20(3):266-270
In order to prevent the teaching reform of organ system curriculum from fall of teaching quality, the teaching effect of organ system curriculum and subject curriculum system in teaching the basic knowledge of pathophysiology was compared. In organ system curriculum teaching, there was no difference between the grades of students in Batch 2011 and Batch 2012 who conformed to the teaching principle of "gradual improvement" and those of the students taught with subject curriculum system. On the contrary, the students of Batch 2013 and Batch 2014 with insufficient curriculum content integration had a decreasing trend or a significant reduction in the teaching effect of organ system curriculum compared with that of subject curriculum system. After the supplementary for curriculum knowledge was made, the teaching effect of the organ system was significantly improved, which was better than that of the subject curriculum system. In conclusion, we have summarized and reflected on the effectiveness of the teaching reform of organ system curriculum, once again proved that basic medical teaching must also follow the inherent law of medical education, which is the teaching principle of "gradual improvement."
6.Analysis and assessment of Coptis chinensis for different parts, ages, and heights using Fourier transform infrared spectroscopy.
Ying-Ming LI ; Li-Qun WANG ; Fen DENG ; Qun ZHOU ; Su-Qin SUN
Acta Academiae Medicinae Sinicae 2004;26(6):614-617
OBJECTIVETo study the infrared (IR) fingerprint spectra of Coptis chinensis for different parts, ages, and heights, and to analyze the integrate rules about the content of berberine component in Coptis chinensis for different parts, ages, and heights.
METHODThe Fourier transform infrared (FTIR) spectroscopy was applied to detect the infrared spectra of Coptis chinensis samples rapidly and non-separately.
RESULTSThe IR spectra of the root, leafstalk, and fibre of Coptis chinesis have their unique features. The content of berberine component in Coptis chinensis was different for different parts and the sequence: root > leafstalk > fibre. When Coptis chinensis grows, the content of berberine component in leafstalk also increases. The content of berberine component in leafstalk which planting in 1 200 m was less than that in 1 300, 1 400, and 1 500 m. The ages and heights provide no obvious influences on the content of berberine in the root of Coptis chinensis.
CONCLUSIONUsing FTIR spectroscopy, the quality of Coptis chinensis can be controlled, which provides a useful method for the standardized planting of Coptis chinensis.
Altitude ; Berberine ; analysis ; Coptis ; chemistry ; Plant Leaves ; chemistry ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Quality Control ; Spectroscopy, Fourier Transform Infrared ; Time Factors
7.Clinical observation on anovulatory infertility of blood and essence asthenia type treated by Lin'erlai Prescription.
Ying HUANG ; Qun CHENG ; An-fang ZHOU
Chinese Journal of Integrated Traditional and Western Medicine 2007;27(11):1028-1030
OBJECTIVETo observe the clinical effect of Lin'erlai Prescription (LEL) in treating anovulatory infertility of blood and essence asthenia syndrome type (BEAS).
METHODSSixty patients with anovulatory infertility in Western medical term, and classified as BEAS in Chinese medical term were equally assigned to two groups, they were treated with LEL (the treated group) and clomid (the control group) respectively. The ovulation rate and pregnant rate were observed.
RESULTSThe total effective rate in the treated group was 96.7%, which was significantly higher than that in the control group (53.3% , P < 0.05). The abortion rate was 10.0% in the treated group, significantly lower than that in the control group (54.6% , P<0.05); the TCM symptom score decreased significantly in the treated group after treatment (P < 0.01), but unchanged in the control group.
CONCLUSIONLEL has good effect in treating anovulatory infertility of BEAS type.
Adult ; Anovulation ; complications ; Clomiphene ; therapeutic use ; Diagnosis, Differential ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Fertility Agents, Female ; therapeutic use ; Humans ; Infertility, Female ; diagnosis ; drug therapy ; etiology ; Medicine, Chinese Traditional ; Phytotherapy ; Treatment Outcome ; Young Adult
8.Single nucleotide polymorphisms of the genes related with spermatogenesis impairment.
National Journal of Andrology 2011;17(12):1125-1130
Male infertility is a complex disease affecting the reproduction of childbearing couples, for which genetic polymorphism of spermatogenesis genes is an important genetic pathogenic factor. Lots of genes closely related with spermatogenesis have been successfully identified through the gene knockout technology. Spermatogenesis impairment related genes include those associated with expression enzymes, receptors, cell apoptosis, transcription regulation, and so on. The genetic susceptibility of these genes, infection, and environment jointly contribute to non-obstructive azoospermia and oligozoospermia in males. The analysis of the single nucleotide polymorphism (SNP) of spermatogenesis impairment related genes helps explain the possible mechanism of pathogenesis at the molecular level, and provides theoretical evidence for the clinical diagnosis and treatment of male infertility. The article focuses on the correlation of the SNPs of spermatogenesis impairment related genes with azoospermia and oligozoospermia.
Humans
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Infertility, Male
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genetics
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Male
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Oligospermia
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genetics
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Polymorphism, Single Nucleotide
9.Effect of Yifei Jianpi Recipe on Airway Inflammation and Airway Mucus Hypersecretion of Chronic Obstructive Pulmonary Disease Model Rats.
Sheng WANG ; Ling-ling XIONG ; Wei REN ; Chun-dong ZHU ; Chun-ying LI ; Qun ZHOU
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(8):993-999
OBJECTIVETo observe preventive and therapeutic effect of Yifei Jianpi Recipe (YJR) on chronic obstructive pulmonary disease (COPD) model rats and to explore its mechanism from the way of airway inflammation and airway mucus hypersecretion.
METHODSThe COPD rat model was established by using cigarette smoking combined with intratracheal injection of lipopolysaccharide (LPS). Male SD rats were randomly divided into the blank control group (control group), the model group, the YJR group, 6 in each group. Forced vital capacity (FVC), forced expiratory volume in 0. 1 second (FEV0. 1), FEVO. 1/FVC, peak expiratory flow (PEF) was tested by lung function device. Pathological changes of bronchi and lung tissues were observed by HE staining. Airway Goblet cells were observed using AB-PAS staining. Contents of IL-8, IL-17, and TNF-α in bronchoalveolar lavage fluid (BALF) were measured by enzyme-linked immunosorbent assay (ELISA). Protein expressions of intercellular cell adhesion molecule-1 (ICAM-1), nuclear factor KB (NF-KB), mucin 5AC (Muc5AC), and Toll-like receptor 4 (TLR4) in rat airway were detected by immunohistochemical assay. mRNA expressions of TLR4 and Muc5AC in bronchi and lung tissues were detected by real-time quantitative PCR (RT qPCR).
RESULTSChanges of bronchi and lung tissues in the model group rats were consistent with typical pathological manifestations of COPD. Compared with the model group, the degree of lung injury was significantly alleviated in the YJR group. Compared with the control group, FVC, FEV0. 1, FEVO. I/FVC, and PEF were decreased (P <0. 01), contents of IL-8, IL-17, and TNF-α in BALF were significantly increased (P <0. 01), protein expressions of ICAM-1, NF-KB, Muc5AC, and TLR4, mRNA expression levels of Muc5AC and TLR4 in bronchi and lung tissues were also significantly increased in the model group (P <0. 01). Compared with the model group, FVC, FEV0. 1, FEV0. 1/FVC, and PEF were significantly increased in the YJR group (P <0. 01, P <0. 05), but the rest indices were significantly lowered (P <0. 01, P <0. 05).
CONCLUSIONYJR could decrease contents of IL-8, IL-17, and TNF-α in BALF of COPD model rats, inhibit protein expression levels of ICAM-1, NF-κB, Muc5AC, and TLR4.in airway and lung tissues, thus playing preventive and therapeutic roles by reducing airway inflammation and airway mucus hypersecretion.
Animals ; Bronchi ; Bronchoalveolar Lavage Fluid ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Inflammation ; Intercellular Adhesion Molecule-1 ; metabolism ; Interleukin-17 ; metabolism ; Interleukin-8 ; metabolism ; Lipopolysaccharides ; Lung ; Male ; Models, Animal ; Mucin 5AC ; metabolism ; Mucus ; metabolism ; NF-kappa B ; metabolism ; Pulmonary Disease, Chronic Obstructive ; drug therapy ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Toll-Like Receptor 4 ; metabolism ; Tumor Necrosis Factor-alpha ; metabolism
10.Effect of sufficient nutritional support on nutritional status and quality of life in cancer patients following chemotherapy
Qun-Ying ZHOU ; Zhong-Yu JIANG
Parenteral & Enteral Nutrition 2018;25(3):138-141
Objective: To compare the effects of routine nutritional support and sufficient nutritional support on nutritional status and quality of life in patients with cancer undergoing chemotherapy. Methods: From February 2016 to February 2017, 86 patients with cancer undergoing chemotherapy were collected, and the nutritional risk was assessed by Nutritional Risk Screening Tools and Patient-Generated-Subjective Global Assessment. The included patients were randomized given conventional nutritional support and sufficient nutritional support (n=43 each group). At the end of chemotherapy, the effects of different nutrition support on the nutritional status and quality of life were evaluated via nutritional risk screening tools, quality of life scale, the BMI, and the level of serum total protein, serum albumin and hemoglobin. Results: The nutritional support was successfully completed both groups. In terms of nutritional status, the nutritional risk screening score was statistically significant among the nutrition support group before and after chemotherapy, and routine nutrition support group after chemotherapy (P < 0. 05). In addition, the level of serum albumin and hemoglobin in the sufficient nutritional support group were significantly higher than those before chemotherapy (P < 0. 05). The quality of life score, physical function, emotional function, life quality, overall symptom scale fatigue, nausea, insomnia, loss of appetite, constipation, and diarrhea in the sufficient nutrition support group were lower than those in the conventional nutritional support group (P < 0. 05). Conclusions: The sufficient nutritional support can effectively improve the nutritional status and the quality of life in cancer patients with nutritional risk after chemotherapy.