Raushan Kozykeyeva

Dr. Raushan Kozykeyeva

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
20 September 2024 in Molecules
Verified
Journal Article
Open access
PDF file
AAAlima Abilkassymova
Alima Abilkassymova
JAJennyfer Aldana-Mejía
Jennyfer Aldana-Mejía
Kumar KatraguntaKumar Katragunta
Kumar Katragunta
RKRaushan Kozykeyeva
Raushan Kozykeyeva
AOArdak Omarbekova
Ardak Omarbekova
SRSamir Anis Ross
Samir Anis Ross
Atraphaxis pyrifolia, a native medicinal plant of Central Asia, has a long history of traditional medicinal use; however, scientific research on its phytochemical and biological properties remains scarce. This paper aims to elucidate its chemical profile and assess its pharmacological potential through a comprehensive investigation of the phytochemical composition of stems and leaves using Liquid Chromatography-Mass Spectrometry (LC-MS), in conjunction with the assessment of its antioxidant (DPPH and ABTS) and cytotoxicity test on Artemia salina. Predominantly, glycosylated flavonoids were detected in stems and leaves extracts, notably including 8-Acetoxy-3′,4′,5,5′-tetrahydroxy-7-methoxy-3-α-L-rhamno-pyranosyloxyflavone, pyrifolin, and dehydroxypyrifolin. While the latter compound is exclusive to A. pyrifolia, the former compounds serve as shared chemical markers with other Atraphaxis species. The methanolic extracts of A. pyrifolia leaves exhibited significant antioxidant capacity without toxicity against Artemia salina. This study contributes to current research through providing valuable insights into the chemical diversity and potential medicinal properties of this plant species.

13 February 2024 in Molecules
Verified
Journal Article
Open access
PDF file
AAAlima Abilkassymova
Alima Abilkassymova
RKRaushan Kozykeyeva
Raushan Kozykeyeva
JAJennyfer Aldana-Mejía
Jennyfer Aldana-Mejía
Sebastian John AdamsSebastian John Adams
Sebastian John Adams
UDUbaidilla Datkhayev
Ubaidilla Datkhayev
SRSamir Anis Ross
Samir Anis Ross
Atraphaxis pyrifolia is a native species of Central Asia, known for curing several disorders. The species has little knowledges about its chemical composition and any information about its morphological characteristics despite its importance in traditional Asian medicine. This is one of the first approaches to the phytochemical and morphological characterization of this species. Micro-morphology was performed on the stem, and leaf parts of this plant to profile the morpho-anatomical characters using brightfield, fluorescence, polarized and scanning electron microscopy. Leaves were extracted with hexane and methanol. The hexane extract was analyzed using GC-MS analysis revealing the major presence of γ-sitosterol and nonacosane. The methanolic extract was submitted to Vacuum Liquid Chromatography and Sephadex LH-20. HPTLC, HR-ESI-MS and NMR techniques were used to identify the main compounds. Four glycosylated flavonoids were isolated: 8-O-acetyl-7-O-methyl-3-O-α-l-rhamnopyranosylgossypetin (Compound 1), and 7-O-methyl-3-O-α-l-rhamnopyranosylgossypetin (Compound 3), and two other compounds reported for the first time in the literature (Compounds 2 and 4). The findings presented herein furnish pertinent information essential for the identification and authentication of this medicinal plant. Such insights are invaluable for facilitating robust quality control measures and serve as a foundational framework for subsequent endeavours in metabolic, pharmacological, and taxonomical analyses.

30 March 2020 in The Scientific World Journal
Verified
Journal Article
Open access
PDF file
RKRaushan Kozykeyeva
Raushan Kozykeyeva
UDUbaidilla Datkhayev
Ubaidilla Datkhayev
RSRadhakrishnan Srivedavyasasri
Radhakrishnan Srivedavyasasri
TATemitayo Olayemi Ajayi
Temitayo Olayemi Ajayi
APAnapiya K Patsayev
Anapiya K Patsayev
SRSamir Anis Ross
Samir Anis Ross
Agrimonia asiatica is a perennial plant with deep green color and covered with soft hairs and has a slightly aromatic odor. This genus Agrimonia has been used in traditional medicines of China, Greece, and European countries. It was mainly used as a haemostatic, a tonic for asthenia, and an astringent for diarrhea. Agrimony is part of the division Magnoliophyta; class is represented by order Rosales, family Rosaceae, of the genus Agrimonia. Family Rosaceae—or pink eels—is one of the largest families of flowering plants, including about 100 genera and 3000 species. Rosaceae is common in almost all areas of the globe where flowering plants can grow, but most of them are concentrated in the temperate and subtropical zones of the Northern Hemisphere. Phytochemical investigation on ethanolic extract of A. asiatica led to isolation of four flavonoid derivatives (kaempferol-3-glycoside, quercetin-3-O-α-arabinofuranosyl-β-D-galactopyranoside, 3-O-kaempherol 2,3-di-O-acetyl-4-O-(cis-p-coumaroyl)-6-O-(trans-p-coumaroyl)-β-D-glucosopyranoside, and catechin) alongside of sucrose. All the extracts, fractions, and isolated compounds were tested for antimicrobial and antiplasmodial activities. We also studied the chemical composition of essential oil obtained from the aerial part of A. asiatica. The essential oil constituents from the aerial part of A. asiatica were obtained using a steam-distillation method in wild growing conditions in Kazakhstan. The essential oil extracted from the aerial part of the plant was analyzed by gas chromatography-mass spectroscopy and its major components amounting to 100% were found to be β-selinene (36.370%), α-panasinsene (21.720%), hexadecanoic acid (7.839%), and 1,2-nonadiene (6.199%). Neither the extract nor the isolated compounds showed antimicrobial and antiplasmodial activities.

10 July 2025 in Pharmacy Practice
Verified
Journal Article
Open access
PDF file
ATAknur Turgumbayeva
Aknur Turgumbayeva
KOKulpan Orynbassarova
Kulpan Orynbassarova
KAKarzhaubayeva Aishabibi
Karzhaubayeva Aishabibi
SOSaule Ordabayeva
Saule Ordabayeva
SASerikbayeva Aigul
Serikbayeva Aigul
FKFarida Kayupova
Farida Kayupova
Objective: Natural products from medicinal plants, either as pure compounds or as standardized extracts, provide un-limited opportunities for new drug leads because of the unmatched availability of chemical diversity. The objects of the study were the medicinal plant raw materials Saussurea sordida Kar&Kir and Saussurea alpina DC. collected from southern Kazakhstan during the flowering period in the spring-summer months of 2021. experimental and theoretical substantiation of the technology for obtaining phytosubstances S. sordida, S. alpina and their study of antioxidant activity. Methods: Identification of functional groups was performed using Fourier transform infrared spectroscopy (FT-IR). The component composition of extracts of two types of medicinal plant raw materials was studied using gas chromatography with mass spectrometric detection. Results: The present study aimed to analyze the bioactive constituents of the plants S. sordida and S. alpina. The ethanol extracts were subjected to phytochemical screening and Fourier transform infrared (FTIR) spectroscopy. Phytochemical screening of the extract revealed the presence of phenolic compounds. FT-IR spectroscopic analysis revealed various characteristic bands corresponding to various functional groups, such as amines, alcohols, phenols, alkanes, alkenes, and conjugated acids, in the formulation extract. FT-IR analysis of peak values for various functional compounds, such as alcohols, phenols, carboxylic acids, aldehydes, amides, amino acids, anhydrides, esters, ketones, unsaturated aliphatic, aromatics, unsaturated heterocycles, amines, nitro compounds, alkanes, alkenes and sugars. For the first time, the compositions of petroleum ether extracts from medical plants, such as Saussurea sordida and Saussurea alpine, were investigated through GC‒MS analysis. The antioxidant activity of the medicinal plants showed that the S. alpine extract had greater activity than the S. sordida extracts according to both methods (the content of antioxidants was measured in terms of quercetin and gallic acid). Conclusion: According to the results of our study, the biologically active substances of this plant relative have an antioxidant effect due to the presence of phenolic compounds in their composition.

29 February 2024 in Preprints.org
Verified
Preprint
Open access
PDF file
KOKulpan Orynbassarova
Kulpan Orynbassarova
AKAishabibi Karzhaubayeva
Aishabibi Karzhaubayeva
SOSaule Ordabayeva
Saule Ordabayeva
ASAigul Serikbayeva
Aigul Serikbayeva
RKRaushan Kozykeyeva
Raushan Kozykeyeva
ATAknur Turgumbayeva
Aknur Turgumbayeva
Natural products from medicinal plants, either as pure compounds or as standardized extracts, provide unlimited opportunities for new drug leads because of the unmatched availability of chemical diversity. The objects of the study are medicinal plant raw materials Saussurea sordida Kar&Kir and Saussurea alpina DC. collected from South Kazakhstan during the flowering period in the spring-summer months of 2021. The present study was aimed to investigate the toxic effects acute administration of ethanol extracts from plants S. sordida and S. alpina in male Wistar rats. The ethanol extract by subjected to Phytochemical Screening, Fourier transform infrared spec-troscopy (FTIR) analysis. Phytochemical screening of the extract revealed the presence of phenolic compounds. FT-IR spectroscopic analysis revealed various characteristic band values with various functional groups in the formulation extract such as amines, alcohol, phenol, alkane, alkene, and conjugated acid groups. FT-IR analysis of peak values with various functional compounds such as alcohols, phenols, carboxylic acids, aldehydes, amides, amino acids, anhydrides, esters, ketones, unsaturated aliphatic, aromatics, unsaturated heterocycles, amines, nitro compound, alkanes, al-kenes and sugars. Histological examination of organ samples after studying the chronic toxicity of ex-tracts of two plant species (S. sordida . and S. alpina) revealed no pathological changes. The acute toxicity study revealed no lethal effects and behavioral signs of toxicity at the tested doses indicating that LD50 is greater than 2000 mg/kg. These results show low toxicity of on short-term use and liver toxicity on long-term use. This study helps to predict the formula and structure of active molecules which can be used as medicinal drugs. This result also enhances the traditional usage of S. sordida and S. alpina , which possesses a number of bioactive compounds.