1.Comparative Study of Chloramphenicol 500 mg Capsules on the Mongolian Pharmaceutical Market According to Pharmacopoeial Standards
Dariimaa B ; Badamtsetseg S ; Enkhsaikhan M ; Altansukh Ts ; Tsetsegmaa S ; Tserendolgor B
Mongolian Journal of Health Sciences 2026;91(1):85-89
Background:
By supporting the production of domestic substitutes for essential medicines listed in Mongolia’s national drug policy, pharmaceutical companies are enabled to ensure product quality assurance, conduct safety monitoring and research, and carry out quality control and certification of medicines. Therefore, ongoing quality assessment is essential to ensure that domestically manufactured medicines meet established standards before they can replace imported alternatives. This study seeks to assess whether the quality parameters of both locally produced and imported 500 mg Chloramphenicol capsules available in the Mongolian pharmaceutical market conform to the requirements of the Mongolian National Pharmacopoeia.
Aim:
To compare and study the quality parameters of certain domestically manufactured and imported chloramphenicol capsule formulations in accordance with pharmacopoeial standards
Materials and Methods:
This study examined four types of 0.5 g Chloramphenicol capsules: three domestically produced (X1, X2, X4) and one imported (X3). The evaluation included tests for identification, average weight, weight variation, dissolution, disintegration, thin-layer chromatography (TLC), assay, high-performance liquid chromatography (HPLC), and microbiological analysis, following the standards outlined in the Mongolian National Pharmacopoeia 2011 (MNP 2011), United States Pharmacopeia 39 (USP 39), Japanese Pharmacopoeia 18 (JP 18), and Chinese Pharmacopoeia 2020 (ChP 2020). Statistical analysis was performed using SPSS version 22.0.
Result:
The purity analysis of samples X1, X2, X3, and X4 indicated that all met the applicable standards. Among them, X1 and X3 complied with pharmacopoeial requirements for identification, weight variation, dissolution, active ingredient assay, and thin-layer chromatography (TLC). In contrast, X4 failed the identification test and had a low active ingredient content, while both X2 and X4 exhibited inadequate dissolution, suggesting non-compliance with standard requirements. Furthermore, high-performance liquid chromatography (HPLC) analysis based on USP criteria revealed that neither X1 nor X3 met the specified limits.
Conclusion
Among the four Chloramphenicol capsule samples analyzed, only X1 and X3 met the pharmacopoeial standards. The non-compliance of X2 and X4 underscores the importance of continuous monitoring and quality assessment of domestically manufactured pharmaceuticals.
2.Bioinformatic Design and Computational Validation of siRNA Targeting the MYC Proto-Oncogene
Khaliun B ; Tserendolgor B ; Altansukh Ts ;
Mongolian Journal of Health Sciences 2026;92(2):180-185
Background:
RNA-based therapeutics are rapidly advancing in clinical trials for the treatment of various diseases, particularly cancer, through the use of nucleic acid–based drugs that directly regulate gene expression at the molecular level and suppress transcription by degrading target RNA via small interfering RNAs (siRNAs). Genetic studies have shown that overexpression of the MYC proto-oncogene, caused by genomic amplification, is observed in up to 70% of hepatocellular carcinoma cases associated with viral infections and alcohol-related liver disease. The MYC proto-oncogene influences key signaling pathways such as PI3K/Akt/mTOR, Wnt/β-catenin, and MAPK/ERK in hepatocellular carcinoma, thereby enhancing protein synthesis required for tumor cell growth, increasing transcriptional activity, promoting tumor progression, and enabling immune evasion. Consequently, the concept of inhibiting the MYC oncogene has gained increasing attention.
Aim:
To design multi-transcript–specific siRNAs targeting the MYC proto-oncogene using bioinformatics approaches and to investigate their effects on hepatocellular carcinoma cells.
Materials and Methods:
Using an in silico experimental design, 15 transcript candidates encoding a specific protein of the MYC proto-oncogene were retrieved from Ensembl and aligned to identify the most conserved regions across all transcripts, which were then used for subsequent siRNA prediction. Selected coding sequence (CDS) variants were analyzed using siDirect 2.1, and three candidate variants were further validated based on the following criteria: siExplorer ≥ 60, OligoWalk ≥ 0.7, and siPRED ≥ 70%. The GC content of the siRNA duplexes, the presence of palindromic sequences in both antisense and sense strands, and the specificity of binding to the target mRNA sites were predicted. Additionally, the three-dimensional structure of the protein was modeled.
Results:
By aligning transcript candidates encoding a specific protein of the MYC proto-oncogene and identifying the most conserved regions, three potential candidate variants (s1, s2, s3) were predicted and further validated: s1 (siExplorer ≥ 79.9, OligoWalk ≥ 0.9, siPRED ≥ 85.5%), s2 (siExplorer ≥ 64.2, OligoWalk ≥ 0.87, siPRED ≥ 91.9%), s3 (siExplorer ≥ 67.7, OligoWalk ≥ 0.81, siPRED ≥ 91.6%). The siRNA sequences exhibited recommended GC content and showed no off-target binding. When modeling the three-dimensional structure by incorporating the predicted antisense siRNA strand into the spatial structure of Ago2, the siRNA was positioned in a biologically compatible manner within the PAZ–MID domain region, and the siRNA–Ago2 complex remained stable in its final conformation.
Conclusion
In this study, three multi-transcript–specific siRNAs targeting MYC proto-oncogene mRNA were successfully designed as potential therapeutic candidates against hepatocellular carcinoma. The selected siRNAs demonstrated strong binding affinity to Ago2. Further validation through in vitro and in vivo studies is required.
3.Technologycal study of preparing tablet formulations from hepaclin-4 prescription
Otgontsetseg B ; Khuslen M ; Byambasuren G ; Tserendolgor B
Mongolian Journal of Health Sciences 2025;88(4):38-41
Background:
As of 2024, digestive system diseases rank fourth among the causes of mortality in Mongolia. Among
these, hepatocellular carcinoma (liver cancer) accounted for 20,501 deaths, leading in total mortality rates. In Traditional
Mongolian Medicine, Scutellaria baicalensis Georgi is used to cool blood heat, clear internal heat, and regulate imbalances; Saussurea amara L. is used for its antibacterial, anti-infective, and anti-inflammatory properties; Carthamus tinctorius L. serves for disinfection, pain relief, fever reduction, and detoxification; and Chiazospermum erectum L. is used to
eliminate toxic heat and febrile conditions. Studies have confirmed that the Hepaclin-4 formulation exhibits antioxidant,
membrane-stabilizing, hepatoprotective, anti-necrotic, detoxifying activities, and reduces the accumulation of harmful
byproducts from excessive peroxidation. Therefore, developing a solid dosage form from the raw herbal materials of
Scutellaria baicalensis Georgi, Saussurea amara L., Carthamus tinctorius L., and Chiazospermum erectum L.in the He
paclin-4 formula forms the basis of our research.
Aim:
To formulate and develop a tablet dosage form based on the compound prescription of Hepaclin-4
Materials and Methods:
The raw materials of Scutellaria baicalensis Georgi, Saussurea amara L., Carthamus tinctorius
L., and Chiazospermum erectum L.were weighed at a 1:1:1:1 ratio and extracted with 40% ethanol at a 1:10 ratio using
the remaceration method. Ethanol was evaporated using a vacuum evaporator to obtain a thick extract, and quality indicators were determined. From the obtained thick extract, granules were prepared using two types of excipients through
the wet granulation method, and their quality characteristics were studied. Based on the most suitable granules, tablet
and capsule dosage forms were prepared and standardized according to the methods outlined in the Mongolian National
Pharmacopoeia.
Results:
The Hepaclin-4 tablets were found to be round, well-formed, smooth, with intact edges, a slight characteristic
odor, no unpleasant taste, and light yellow in color. The friability resistance of the 0.5 g tablet was 99.6±0.08%, hardness
was 1.07±0.12 MPa, weight variation ranged from -2.6% to +3.9%, all within the acceptable 5% limit. The disintegration
time was 4.23±0.05 minutes, and dissolution was 95.4±0.47%, meeting the permissible standards. When flavonoids in the
tablets were detected by Thin Layer Chromatography (TLC), brownish-yellow spots appeared at Rf values identical to
standard quercetin (Rf=0.94) and rutin (Rf=0.48). The total flavonoid content, determined by Spectrophotometric Method
(SPM), was 0.165±0.01%.
Conclusion
Tablets were successfully developed from the thick extract of the Hepaclin-4 herbal compound. Upon eval
uation, the tablets met all the required technical specifications.
4. Current basic concepts and future research directions for drug delivery to tumor tissues and cells
Altansukh Ts ; Chimedlkham B ; Tserendolgor B
Mongolian Journal of Health Sciences 2025;85(1):273-277
Background:
New cases of cancer and cancer-related deaths are high in Mongolia. Therefore, it is a priority to develop
anticancer drugs based on recent scientific achievements, successes, and major theoretical concepts. Pharmaceutical nanotechnology, including pharmaceutical engineering, is developing rapidly, and the problem of drug delivery to tumor-triggered organs, tissues, and cells has been studied at many levels. Drug delivery systems are divided into organic, inorganic,
and complex nanocarriers based on their physicochemical properties. The specificity of drug targeting to tumor-triggered
organs, tissues, and cells can be explained by passive and active targeting mechanisms. The passive delivery mechanism
of drugs to tissues and cells is related to the tumor microenvironment and vascularization, while the active delivery mechanism is related to the principle of binding to specific receptors on the surface of tumor-transformed cells and releasing
the drugs into the cell.
Conclusion
Extensive research in this area in Mongolia has many benefits for the development of anti-cancer drugs.
5.Quality Assurance of Gastrointestinal Endoscopy Unit - A Single Center Study
Sarantuya Ts ; Amarjargal B ; Tungalag B ; Khishgee D ; Amarmend T ; Delgertsog T ; Amarjargal E ; Sarantuya G ; Gan-Orshikh L ; Enkhjargal B ; Sarantsatsral D ; Burentungalag A ; Nandintsetseg B ; Tserendolgor Ts ; Sattgul Sh ; Javzanpagma E ; Suvdantsetseg B ; Khashchuluun O ; Ouynkhishig N ; Munkhtuya E ; Uranchimeg M ; Oyuntungalag L ; Myadagmaa B ; Bat-Erdene I ; Batgombo N ; Saranbaatar A
Mongolian Journal of Health Sciences 2025;86(2):165-170
Background:
Accreditation of healthcare institutions serves as a fundamental mechanism for ensuring patient safety
and validating the quality of medical services provided to the population. At Intermed Hospital, a quality measurement
system for healthcare services has been established since 2015, encompassing 126 quality indicators at both institutional
and departmental levels. This system facilitates continuous quality improvement efforts. In this context, quality indicators
specific to the endoscopy department play a pivotal role in objectively assessing the quality of endoscopic services.
Aim:
To assess the quality indicators in gastrointestinal endoscopy unit.
Materials and Methods:
A retrospective single-center study was conducted by collecting data from the Intermed hospital’s
electronic information systems which included HIS and PACS and Quality and Safety Department’s Database and the results
were processed using the SPSS software. Ethical approval was granted by the Intermed hospital’s Scientific research
committee. The quality of endoscopic services in the Intermed hospital was assessed based on: a) the average values of
four quality indicators measured monthly; b) sample survey data from five categories of quality indicators.
Results :
Between 2016 and 2024, the quality indicators of the endoscopy unit measured as the level of early warning
score evaluations for patients was 95.97%±3.33, the level of cases where peripheral blood oxygen saturation decreased
during sedation was 1.54%±3.78, the level of cases where patients experienced paradoxiical response during sedation was
5.82%±1.75, surveillance culturing level for validation of endoscopy reprocessing was 11.6%. The endoscopic documentation
quality by peer review showed 95.7-100%, the colonoscopy quality indicators were followings as adenoma
detection rate: 24.5% Cecal intubation rate: 99.1%, 95.2%, Colonoscope withdrawal average time: 13.28±10.62 minutes,
Bowel preparation quality (Boston Scale): 89.3% 95.7%), patient discharge from the recovery room, Average discharge
time post-procedure: With propofol alone: 30.92 minutes; With propofol and fentanyl combined: 31.52 minutes, The intermediate
risk was 0.28% by the TROOPS evaluation during procedural sedation.
Conclusion
The quality benchmark levels for these endoscopic units, as determined by a single-center study, can be
effectively implemented by benchmark endoscopy centers to enhance their quality and safety operations.
6.Study of technology for obtaining granular medicine form from Hepaclin-4 prescription
Baasanpurev L ; Byambasuren G ; Ulambayar B ; Tungalag N ; Altantsetseg A ; Adilbish A ; Enkhsaikhan M ; Batbyamba M ; Tsetsegmaa S ; Tserentsoo B ; Altansukh Ts ; Tserendolgor B
Mongolian Pharmacy and Pharmacology 2024;25(2):38-44
Introduction:
Scutellaria baicalensis Georgi, which is used in traditional medicine, has the ability to
remove blood-drying heat. Chiazospermum erectum Bernh. has the ability to relieve typhoid fever and
poison fever. Carthamus tinctorius L. has antiseptic, analgesic and anti-toxic properties. Saussurea amara
L. has bactericidal, anti-infective, and anti-inflammatory properties. Researchers found that the Hepaclin-4
recipe has antioxidant, membrane-strengthening, liver-protective, necrosis-preventing, detoxification, and
peroxidation product accumulation-reducing properties. Therefore, extracting the granular medicine form
from the concentrated extract containing the Hepaclin-4 formulation is the basis of our research work.
Goal:
To obtain the granular medicine form from the concentrated extract containing ingredients of the
Hepaclin-4 recipe.
Materials and Methods:
The research was carried out with the support of the Institute of Pharmaceutical
Research and the University of Pharmaceutical Sciences. The raw materials for the Hepaclin-4 formula were extracted by remaceration with water, 40% ethanol, and 70% ethanol (1:10 ratio). Six types of granules were extracted from the concentrated extract using several excipients by the wet granulation method, and the pouring weight and flowability were determined.
Results:
The quality index of the concentrated extract of the Hepaclin-4 recipe complies with the standards
outlined in the 11th Pharmacopoeia of the National Pharmacopoeia of Mongolia. In qualitative analysis of
total flavonoid, spots were detected at the same level as standard quercetin (Rf=0.88) and rutin (Rf=0.4),
indicating the presence of flavonoids. According to the results of the above research, lactose was found to
be the suitable filler for extracting granules, and starch at 8% was identified as the appropriate binding agent from the concentrated extract of the Hepaclin-4 formula.
Conclusion
It was found suitable to select 8% lactose as a filler and starch as a binding agent from the concentrated extract of the Hepaclin-4 formula and obtain a granule drug form using the wet granulation
method.
7.Technological study for obtaining an appropriate extract from Stellera Chamaejasme L. and Oxytropis Pseudoglandulosa
Maitsetseg N ; Ariuntsetseg A ; Altantuya Ts ; Ulambayar L ; Altansukh Ts ; Tserendolgor B
Mongolian Pharmacy and Pharmacology 2023;22(1):22-27
Background:
Infections in respiratory systems have spread throughout the world without any restrictions including living places, public issues, and lifestyle. Three main causes of illnesses for the population of cities and rural areas were gastrointestinal diseases, respiratory diseases, and cardiovascular diseases. After investigated some medicinal herbs including Stelleria Chamaejasme L. and Oxytropis Pseudoglandulosa, it has been reported that they had antiinflammatory, analgesic, and wound healing effects. Lozenge formulation has some advantages for treatment application, such as easily absorbed, good bioavailability and ability of diminishing stomach irritation. In this study, we aimed to obtain a suitable extract from Stelleria Chamaejasme L. and Oxytropis Pseudoglandulosa for further lozenge formulation.
Purpose:
To obtain a suitable extract from Stelleria Chamaejasme L. and Oxytropis Pseudoglandulosa, and to conduct qualitative and quantitative studies for some biologically active substances
Materials and methods:
In this study, an aerial part of Stelleria Chamaejasme L. and Oxytropis Pseudoglandulosa were used, and the study was conducted in MUPS. For obtaining a suitable extract, the raw materials were extracted by remaceration, repercolation and circulation methods in 20% and 70% of ethanol and distilled water. The flavonoids and polyphenolic compounds in the extracts were determined by thin layer chromatography. Quantitative analysis for total flavonoids was performed by spectrophotometer.
Results:
According to the result, a yellow spot-on chromatogram was detected in extracted raw materials (Stelleria Chamaejasme L. and Oxytropis Pseudoglandulosa), indicating that flavonoid contained in the extracted solution.
The result was compared to standards of rutin (Rf=0.2) and quercetin (Rf= 0.94). Also, a black, blue spot-on chromatogram was detected in extracted raw materials (Stelleria Chamaejasme L. and Oxytropis Pseudoglandulosa), indicating that polyphenols contained in the extracted solution. The spots were compared to gallic acid as a standard substance. In the quantitative assay of total flavonoids in raw materials, black-green precipitation was revealed after procedure. From this result, remaceration and circulation techniques were suitable to extract the raw materials. Flavonoid content was 3.35±0.04% after using remaceration technique, which indicated that it was more suitable to extract the raw materials.
Conclusions
These results showed that the appropriate extracting solution for Stelleria Chamaejasme L. and Oxytropis Pseudoglandulosa was 70% of ethanol. In this case, 3.35±0.04% of flavonoid was extracted by remaceration technique.
8.Qualitative studies on raw materials for Hepaclin-4 prescription
Byambauren G ; Tserentsoo B ; Enkhsaikhan M ; Emujin S ; Munkhtsetseg B ; Suvd B ; Altansukh Ts ; Tserendolgor B
Mongolian Pharmacy and Pharmacology 2023;22(1):34-40
Background:
In 2021, 5981 of cancer new cases was registered in Mongolian population. Among those cases, liver cancer was commonly registered with a prevalence of 32.7%. Studies on anticancer agents with no-adverse effects and good-preventive efficacy against cancer have been attracted more attention from the researchers in the field of pharmaceutical sciences. Scutellaria baicalensis Georgi, Saussurrea amara.L, Chiazospermum erectum Berh, and Carthamus tinctorius.L are well recognized as effective agent against liver diseases. Using these raw materials, researchers have been invented a traditional prescription and named as Hepaclin-4. In this study, we aimed to investigate the qualitative study of raw materials and some biologically active sub- stances in the compounds.
Purpose:
To study the qualitative study of raw materials for Hepaclin-4 prescription
Materials and methods:
Some qualitative properties of raw materials for Hepaclin-4 prescription, including appearance, minerals, some organic compounds, total ash, water-soluble substances and fungi, were investigated according to Mongolian pharmacopeia and total flavonoid was detected by thin layer chromatography.
Results:
No changes were observed on the appearance of raw materials, and minerals and organic compounds weren’t detected in the prescription. No contamination with fungi and insects were identified. The moist in the raw materials were 5.9 to 8.1%, total ash was 4.7 to 13.3% and the water-soluble substances were detected 33.8 to 42.9%. Number of aerobic bacteria, fungi and E.coli, Salmonella species were detected in normal range, indicating that the prescription was matched with the requirement of pharmacopeia. According to the thin layer chromatography study of the raw materials, a yellow spot on the chromatogram were identified and same as quercetin (Rf=0.9-0.98) and rutin ((Rf=0.18-0.23)) as standard compounds, which indicated that the spot which indicated that the spot was flavonoids in the prescription.
Conclusions
These results showed that the appearance, moist, minerals, organic compound, water-soluble substances, ash and biologically active substances of the raw materials for Hepaclin-4 prescription was corresponded with the requirements of pharmacopeia, and flavonoid was detected in raw materials of Hepaclin-4.
9.The intolerance of uncertainty and mental health
Enkhzaya B ; Zolzaya D ; Mungunchimeg D ; Uynga Ts ; Enkhnaran T ; Tserendolgor U ; Xihua Zeng ; Gantsetseg T
Mongolian Medical Sciences 2022;200(2):16-23
Background:
Numerous studies among the western population have been demonstrated that the intolerance of uncertainty can cause mental disorders such as OCD, anxiety disorder major depressive disorder. The lack of research in this field among the eastern population, especially the Mongolians, is the basis of our study.
Material and Methods
The study was designed as a cross-sectional study with a self-report questionnaire and conducted between December 5th and February 5th of 2022. The Intolerance of Uncertainty scale (IUS-12) is for measuring intolerance of uncertainty, Patient health questionnaire (PHQ-9), and Generalized anxiety disorder (GAD-7) were used to measuring mental health among study participants. The present study was undertaken following ethical approval from the MNUMS scientific research ethics committee (approval number: 2021/3-06). Statistical analysis was performed using SPSS version 24.
Purpose:
The current study was aimed to explore the impact of intolerance of uncertainty on students’ mental health.
Results:
Total of 3137 students (2440 Chinese, 697 Mongolian), 65.7% of them were female students participated in the current study. The mean score of IUS-12 was 33.53±7.72 among Chinese students, while 38.65±8.48 among Mongolians. This reveals the statistically significant (p=0.003) difference intolerance level between Chinese and Mongolian students. Moreover, Chinese students were less depressed and less anxious than Mongolian students. The anxiety and depression level was directly impacted by the influence of intolerance of uncertainty.
Conclusion
Chinese students are more tolerant toward uncertainties than Mongolian students. The intolerance of uncertainty causes depression and anxiety, regardless of nationality.
10.The study of some biologically active substances in liquid extract’s from Plantago Major.L
Amarzaya Ts ; Altansukh Ts ; Tserendolgor B
Mongolian Pharmacy and Pharmacology 2022;20(1):16-20
Introduction:
According to the annual health report of Mongolia, non-communicable diseases are rising. Digestive system diseases, the second leading cause of morbidity in the population, account for an average of 15.5 percent of all morbidity over the last 10 years. In traditional Mongolian medicine, Plantago Major L has been widely used as a remedy for wound healing, cholangitis, gastric and duodenal ulcers.
Material and method:
The research was conducted in the pharmaceutical industry and technology laboratory. The leaves of Plantago Major L were chosen as the main raw materials and UV spectrophotometer, shaker, thin-layer chromatographic plates (Silica gel 60 F 254, Germany), and UV light were used in the experiment. The leaves of Plantago Major L were extracted with 40% ethyl alcohol in a soxlet apparatus and evaporated in a vacuum evaporator to obtain a thick extract.
Result:
Thin-layer chromatographic analysis of granule and ethyl alcohol extracts of Plantago Major L revealed yellow-brown spots (Rf = 0.4) at the same level as the standard substance rutin on the plate, indicating the presence of flavonoids. The highest light absorption was 250 nm when determining the sensitive wavelength of ethyl alcohol extract of Plantago Major L between 200 nm and 520 nm. The total flavonoids contained 3.95 ± 0.17% (p <0.001) in 40% ethyl alcohol extract of Plantago Major L.
Conclusion
It was detected that quantitative mass of total flavonoids in liquid extracts from was
3.95±0.17%.
Result Analysis
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