Publications by authors named "Guifen Zhou"

Background: Saffron (Crocus sativus L.) is a valuable herb. With the increasing demand for saffron, people are starting to focus on how to increase its yields.

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Ethnopharmacological Relevance: Osteoporosis (OP) is a metabolic disorder characterized by disrupted osteoclastic bone resorption and osteoblastic bone formation. Curculigo orchioides Gaertn has a long history of application in traditional Chinese and Indian medicine for treating OP. Orcinol gentiobioside (OGB) is a principal active constituent derived from Curculigo orchioides Gaertn and has been shown to have anti-OP activity.

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Saffron ( L.) is a valuable Chinese herb with high medicinal value. Saffron pistils are used as medicine, so increasing the number of flowers can increase the yield.

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Background: Impaired behavioral inhibition is a critical factor in drug addiction and relapse. Repetitive transcranial magnetic stimulation (rTMS) reduces the craving of heroin-addicted individuals for drug-related cues. However, it is unclear whether this technique also improves impaired behavioral inhibition and how improved behavioral inhibition affects craving.

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Background: Saffron crocus () is an expensive and valuable species that presents preventive and curative effects. This study aimed to screen the key proteins affecting the floral initiation of saffron under cold stress and thus increasing yield by regulating the temperature.

Results: Protein expression profiles in flowering and non-flowering saffron buds were established using isobaric tags for relative or absolute quantitation (iTRAQ).

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Background: Saffron crocus (Crocus sativus) is a valuable spice with medicinal uses in gynaecopathia and nervous system diseases. Identify flowering regulatory genes plays a vital role in increasing flower numbers, thereby resulting in high saffron yield.

Results: Two full length transcriptome gene sets of flowering and non-flowering saffron crocus were established separately using the single-molecule real-time (SMRT) sequencing method.

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The red stigmas of saffron are one of the most expensive spices in the world and serve as a traditional Chinese medicine. More saffron has been cultivated in China, and different drying technologies have been studied. However, a comprehensive and comparative analysis of different drying approaches has not been well studied.

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Background: Autophagy induction is a common mechanism for antitumor chemicals in induction of cancer cell death. However, the role of autophagy in crocin-induced apoptosis is barely studied in hepatocellular carcinoma (HCC).

Materials And Methods: The influence of crocin on growth, apoptosis, and autophagy and its mutual relations were analyzed by Cell Counting Kit-8 assay, flow cytometer, EGFP-LC3 puncta analysis, and Western blot in HCC cells.

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Saffron is a kind of expensive spice and therapeutic agent. In order to establish a set of methods to evaluate the quality of saffron, High Performance Liquid Chromatography/Mass Spectrometry (HPLC/MS) were used to identify the apocarotenoids extracted from saffron stigmas. TOPSIS method was applied to evaluate the qualities of saffron.

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Article Synopsis
  • The study used the phenol-sulfuric acid method to analyze the polysaccharide content in Dendrobium officinale leaves and stems, revealing significant differences in composition and quantity.
  • Polysaccharides in the stems had a higher content and were primarily made up of mannose and glucose, while the leaves contained an acid heteropolysaccharide made up of five different monosaccharides.
  • The analysis of chromatographic fingerprints showed a high similarity among the samples, which supports the potential to expand the medicinal uses of D. officinale beyond just the stems.
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Article Synopsis
  • The study aimed to identify a specific chemical marker, naringenin, in Dendrobium officinale and establish a method to measure its content across different sources and growth years.
  • Naringenin content was analyzed using HPLC, achieving good linearity and an average recovery rate of 96.3%.
  • The findings indicate that the HPLC method is accurate and reliable for quantifying naringenin in D. officinale, with the highest levels found in 3-year-old plants and variations depending on the source.
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Objective: To establish the method of specific chromatogram analysis of ether extract of Dendrobium officinale for identification of D. officinale.

Method: Chromatographic separation was carried out at 30 degrees C on an Ultimate C18 column (4.

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Objective: To study the scavenging DPPH free radicals activity of flavone C-glycosides from different parts of Dendrobium officinale.

Method: The types and contents of flavonoids from different parts of D. officinale were analyzed by TLC and HPLC.

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Objective: To study hypoglycemic action of total flavone (GXTF) of Ampelopsis grossedentata from Guangxi by observing the effects of GXTF on blood glucose levels in many strain animal models.

Method: The blood glucose levels in many strain animal models were determined after oral administration, with the models of diabetes induced by alloxan, of hyperglycemic mice induced by epinephrine and glucose, and normal mice.

Result: GXTF had better therapeutical action on diabetes mice induced by alloxan, and could significantly lowered the blood glucose levels of hyperglycemic mice induced by epinephrine and glucose, but had no significant effects on blood glucose levels of normal mice.

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