1.The assessment of the current situation of laboratory diagnostic services among family health centers in Ulaanbaatar
Narantsatsral G ; Baljinnyam B ; Myagmartseren D ; Zesemdorj O
Mongolian Journal of Health Sciences 2025;88(4):154-159
Background:
Mongolia’s long-term development policy, Vision 2050, aims to ensure that every citizen has full access
to primary health care services and to increase the country’s average life expectancy. According to the “Primary Health
Care Service Quality and Accessibility Survey,” the diagnostic capacity of family health centers (FHCs) in Mongolia
was 42.1%. There is a need to further identify issues related to laboratory human resources, equipment supply, quality
assurance, and monitoring.
Aim:
To assess the current status of laboratory diagnostic services in family health centers in Ulaanbaatar city.
Materials and Methods:
The study collected data using a questionnaire developed based on resources such as the
WHO’s Service Availability and Readiness Assessment (SARA), USAID’s Laboratory Assessment Tools, the Ministry
of Health’s 2023 Order No. A/283 on updated guidelines for services provided by family, soum, and bagh health centers,
and the national standard “Structure and Operation of Family Health Centers (MNS 5292:2017).” A total of 46 FHCs in
Ulaanbaatar were randomly selected for the study.
Results:
The average population served by the participating FHCs was 10,228±4043, with 73.9% (n=34) serving over
8,000 people. On average, each center employed 5±2 physicians and nurses. A clinical pathologist was employed at 50.0%
(n=23) of the centers, of which 26.1% (n=6) were full-time and 73.9% (n=17) were contract-based. Availability of laboratory equipment was as follows: Complete blood count (CBC) analyzers: 60.9% (n=28) Biochemistry analyzers: 50.0%
(n=23) Urinalysis equipment: 97.8% (n=45) The availability of laboratory equipment was not significantly associated
with the size of the population served (p=0.54; p=0.63; p=0.74). Among FHCs with laboratory equipment: 82.1% (n=23)
performed CBC tests 87.0% (n=20) performed biochemistry tests 97.8% (n=44) conducted urinalysis tests. Participation
in internal and external quality control programs was significantly higher among centers with specialized laboratory staff
compared to those without (p=0.008; p=0.08). The number of tests and biochemistry parameters performed was also significantly higher in centers with specialized laboratory personnel (p=0.001, p=0.001). However, the availability and use of
rapid diagnostic tests did not differ based on population size or the presence of specialized laboratory staff (p=0.8; p=0.6).
Conclusion
1. In Ulaanbaatar, only half of the family health centers have specialized laboratory personnel.
2. Laboratory equipment availability was between 50.0% and 60.9%. Centers with specialized laboratory staff showed
significantly better performance in internal and external quality control and broader diagnostic testing services.
3. Differences in diagnostic services were associated with both the population size served and the availability of specialized laboratory staff, indicating the need to strengthen primary health care accessibility and capacity.
2.Correlation between FTO gene rs9939609, rs17817449 polymorphisms and, obesity
Yumchinsuren Ts ; Dolgion D ; Yesukhei E ; Baljinnyam T ; Enkhmend Kh ; Ganchimeg D ; Gantogtokh D ; Otgongerel N ; Batbold B ; Shiirevnyamba A ; Tulgaa L
Mongolian Journal of Health Sciences 2025;85(1):136-141
Background:
In 2022, the World Health Organization (WHO) reported that globally, 2.5 billion (43%) of adults aged
18 and older were overweight, with 890 million (16%) of these individuals classified as living with obesity. Some genes
such as the FTO gene are strongly associated with obesity and overweigh. The FTO protein is crucial in regulating food
consumption, appetite, energy equilibrium, and expenditure.
Aim:
The identify single nucleotide polymorphisms rs9939609 and rs17817449 of the FTO gene, which are associated
with obesity, and to study their correlation with antropometric measurements and some laboratory test parameters.
Materials and Methods:
According to the inclusion and exclusion criteria, 50 obese (BMI >30 kg/m²) were included in
the case group, and 50 relatively healthy and normal weight (BMI 18.5-24.9 kg/m²) were enrolled in the control group,
for a total of 100 people matched for age and gender (1:1). We took physical measurements and collected peripheral blood
samples after obtaining informed consent from each participant. Laboratory analyses assessed some parameters of lipid
and glucose metabolism. We used the PCR-RFLP technique on two genotype SNPs. A p-value below 0.05 was considered
a statistically significant result.
Results:
In this study, including 100 people aged 23 to 75, the mean age was 46.81±11.54 years, with 60% being female.
In terms of antropometric measurements, body mass index, waist circumference, and arterial pressure were markedly
elevated in the case group compared to the control group (p<0.001). In laboratory measures, fasting blood glucose,
cholesterol, and mean LDL mean levels were statistically significantly higher in the case group compared to the control
group. On the other hand, HDL cholesterol levels were lower in the case group compared to the control group. The FTO
gene rs9939609 single nucleotide polymorphism was identified in 62% of the total study individuals as TT, 35% as AT,
and 3% as AA genotypes. Also, FTO gene rs17817449 single nucleotide polymorphism was identified in 62% of the total
study individuals as TT, 33% as AT, and 5% as AA genotypes.
Conclusion
The rs9939609 AT/AA genotype of the FTO gene elevates the risk of obesity and is associated with increased body weight, waist circumference, and BMI.
3.Association between rs738409 and rs2896019 polymorphisms of PNPLA3 and metabolic dysfunction-associated steatotic liver disease
Dolgion D ; Yumchinsuren Ts ; Yesukhei E ; Baljinnyam T ; Enkhmend Kh ; Otgongerel N ; Gantogtokh D ; Ganchimeg D ; Batbold B ; Davaadorj D ; Khurelbaatar N ; Tulgaa L
Mongolian Medical Sciences 2024;209(3):3-11
Introduction:
The prevalence of metabolic dysfunction-associated steatotic liver disease (MASLD)
has increased significantly over the last three decades worldwide, from 17.6% in
1990 to 23.4% in 2019. The development of this disease depends on many risk
factors, including genetics, lifestyle, and environment. The PNPLA3 (patatin-like
phospholipase domain-containing protein 3) gene is the most relevant genetic factor
influencing the risk of metabolic dysfunction-associated steatotic liver disease.
The PNPLA3 rs738409 GG genotype impairs adiponutrin function, accumulating
triglyceride in liver cells and forming small fat droplets within the liver.
Aim:
To determine rs738409 and rs2896019 single nucleotide polymorphisms of the
PNPLA3 gene in metabolic dysfunction-associated steatotic liver disease and their
correlation with some parameters of anthropometric and laboratory tests.
Materials and Methods:
This study was conducted with a case-control design in 2023–2024. There were 150
participants in the study, 50 in the control group without MASLD, and 100 in the case group with MASLD. The PNPLA3 (rs738409, rs2896019) gene’s single nucleotide
polymorphism was identified by the RFLP-PCR technique. All statistical analysis
was performed using SPSS 23 software. Categorical variables were described by
numbers and percentages, and the numerical variables were characterized by the
median (min and max) for the normal distribution, and mean± standard deviation for
the non-normal distribution. The statistical tests utilized were the Chi-square test,
Fisher’s exact test, student t-test, and Mann–Whitney test. Ethical approval for the
survey was obtained from the Medical Ethics Committee under the Ministry of Health
Of Mongolia in January 2023.
Results:
The participants’ average age was 46.73±11.45, with 60% being women (90) and
40% being men (60). Among all patients, the PNPLA3 gene’s single nucleotide
polymorphism rs738409 revealed 44.7% (67) CC, 54.7% (82) GC, and 0.7% (1) GG
(OR-CG+GG genotype- 2.9, p=0.003). In addition, as a result of determining the
PNPLA3 gene rs2896019 single nucleotide polymorphism, the frequency of the TT
genotype was significantly higher in the control group than in the case group (48%,
31%, p = 0.042).
Conclusion
The frequency of CG/GG genotypes rs738409, and rs2896019 of the PNPLA3 gene
is higher in the case group, suggesting that they may be more susceptible to MASLD.
4.Combined treatment with vitamin C, hydrocortisone and thiamine does not attenuate morbidity and mortality of septic sheep
Tuvshintugs BALJINNYAM ; Satoshi FUKUDA ; Yosuke NIIMI ; Donald PROUGH ; Perenlei ENKHBAATAR
Laboratory Animal Research 2024;40(3):307-317
Background:
Sepsis is associated with a highest mortality rate in the ICU. Present study tests the efficacy of combined therapy with vitamin C, hydrocortisone and thiamine (combined therapy) in the ovine model of sepsis induced by Pseudomonas aeruginosa. In this study, sepsis was induced in sheep by instillation of Pseudomonas aeruginosa (1 × 1011 CFU) into the lungs via bronchoscope, under anesthesia. Nine hours after injury, intravenous infusion of vitamin C (0.75 g every 6 h), hydrocortisone (25 mg every 6 h), and thiamine (100 mg every 12 h) or saline was given to the treatment and control groups. Cardiopulmonary variables were recorded.
Results:
The survival rate was 16.7% in control and 33.3% in treatment groups. In the control group, mean arterial pressure dropped from 93.6 ± 8.6 to 75.5 ± 9.7 mmHg by 9 h, which was not affected by the combined therapy.Pulmonary dysfunction was not attenuated by the combined therapy either. The combined therapy had no effect on increased extravascular lung water content and fluid effusion into thoracic cavity. The bacterial number in the bronchoalveolar lavage fluid was significantly increased in the treatment group than the control group. The blood bacterial number remained comparable between groups.
Conclusions
Combined vitamin C, hydrocortisone, and thiamine did not attenuate severity of ovine sepsis.
5.Online continuing medical education in Mongolia: needs assessment
Baljinnyam BAATARPUREV ; Basbish TSOGBADRAKH ; Solongo BANDI ; Gal-Erdene SAMDANKHUU ; Sumberzul NYAMJAV ; Oyungoo BADAMDORJ
Korean Journal of Medical Education 2022;34(3):191-200
Purpose:
Due to the shortage in the healthcare workforce, insufficient qualifications, a lack of infrastructure and limited resources in Mongolia, it is not always possible for healthcare workers in rural areas who wish to attend continuous training and retraining courses to do so. However, in order to provide high-quality care, the demand for distance learning and the upgrading of knowledge and practice of many medical topics (especially related to morbidity and mortality) are necessary for the rural population. This study aimed to assess the needs of e-learning medical education, of graduates in Mongolia.
Methods:
A cross-sectional research design was implemented. We collected data from 1,221 healthcare professionals (nursing professionals, physicians, midwives, and feldshers) who were randomly selected from 69 government hospitals in Mongolia. Data were collected using self-assessment questionnaires which captured the needs assessment in a survey for online continuous medical education in Mongolia. Data were analyzed using descriptive statistics and Kruskal-Wallis statistical test.
Results:
Ninety percent of the respondents reported that they plan on attending online continuous medical education with the most preferred specialty area being emergency medicine. Results using the Kruskal-Wallis statistical technique suggested the preferred specialty area, educational content, appropriate time schedule, available devices, and tools were statistically significant and were different between the nursing professionals, physicians, midwives, and feldshers (p<0.05).
Conclusion
Findings provide important evidence for the implementation of measures and strategies which can assist healthcare professionals in low and middle-income areas/countries to constructively address their need for enhanced knowledge and practice through distance learning.
6.Efficacy and safety of ledipasvir/sofosbuvir in 5,028 Mongolian patients infected with genotype 1 hepatitis C virus: A multicenter study
Oidov BAATARKHUU ; Jae Seung LEE ; Jazag AMARSANAA ; Do Young KIM ; Sang Hoon AHN ; Nyamsuren NARANZUL ; Damba ENKHTUYA ; Nagir CHOIJAMTS ; Purev BATBAYAR ; Radnaa OTGONBAYAR ; Bat-Ulzii SARUUL ; Chuluunbaatar GANTUUL ; Baljinnyam GEGEEBADRAKH ; Narangerel TUVSHINBAYAR ; Dorjgotov BADAMSUREN ; Galsan ULZMAA ; Jamiyandorj OTGONBOLD ; Kwang-Hyub HAN
Clinical and Molecular Hepatology 2021;27(1):125-135
Background/Aims:
Ledipasvir/sofosbuvir (LDV/SOF) shows high efficacy and safety in patients with genotype 1-hepatitis C virus (HCV). We aimed to investigate the efficacy and safety of LDV/SOF in real-world Mongolian patients.
Methods:
Between 2015 to 2019, 23 (0.5%) and 5,005 patients (99.5%) with genotype 1a and 1b HCV, respectively, were treated with a fixed-dose tablet containing 90 mg ledipasvir and 400 mg sofosbuvir for 12 weeks, and 81 patients (1.6%) with previous experience of interferon (IFN)-based treatment received additional 1,000 mg ribavirin. HCV RNA was measured at 4, 12, and 24 weeks after the first dose to determine rapid virologic response, end of treatment response (ETR), and sustained virologic response at 12 weeks after end of treatment (SVR12).
Results:
Most patients (n=5,008; 99.6%) achieved ETR and SVR12 without virologic relapse. Patients with genotype 1a showed low rates of ETR and SVR12 in only 16 patients (69.6%). There was no significant difference in SVR12 rate between patients regardless of IFN experience (n=81; 1.6%), cirrhosis (n=1,151; 22.9%), HCV RNA >6×106 IU/mL (n=866; 17.2%), or liver stiffness >9.6 kPa (n=1,721; 34.2%) (100.0%, 99.3%, 99.4%, and 99.4%, respectively). No severe adverse events (AEs) were reported, and there was no dose reduction or interruption due to AE. The most common AEs were headache (n=472; 9.4%), fatigue (n=306; 6.2%), abdominal discomfort (n=295; 5.9%), and skin rash (n=141; 2.8%).
Conclusions
LDV/SOF showed high efficacy and safety for patients with genotype 1, especially 1b HCV, in Mongolia. The real-world data might be applicable to patients in other Asian-Pacific countries.
7.A new diagnostic biomarker in early detection of Hepatocellular Carcinoma
Batchimeg B ; Baljinnyam T ; Khulan U ; Khaliun M ; Bilguun E ; Munkhtsetseg B ; Terguunbileg B ; Chinzorig M ; Gan-Erdene B ; Bilegtsaikhan Ts ; Erkhembulgan P ; Batbold B ; Munkhbat B ; Munkhtuvshin N ; Munkhbayar S
Mongolian Medical Sciences 2021;197(3):10-16
Background and Aims:
Hepatocellular carcinoma (HCC) is a common cause of cancer related death
in Mongolia. Early diagnosis is the very important management to increase successful treatment
and survival rate. Glypican-3 (GPC3) protein is highly expressed in hepatocellular carcinoma (HCC)
tissue and in serum of HCC patients. Recent studies have been conducted and suggested as a
diagnostic biomarker for detecting HCC in the early stage. Therefore, we investigated the diagnostic
value of the serum GPC3 level and compared it to the alpha-fetoprotein (AFP) level as a diagnostic
biomarker of HCC.
Methods:
We enrolled a total of 90 participants and divided into 3 groups with HCC (30), with liver
cirrhosis (LC/30) and healthy (30) as the control group (30). GPC3 and AFP serum (sGPC-3, sAFP)
levels were measured using commercially available enzyme-linked immunosorbent assay kits. The
diagnostic accuracy was analyzed using the receiver operating characteristics (ROC) curve and
estimated sensitivity and specificity of each biomarker.
Results:
sGPC3 was significantly elevated in the HCC group as compared to liver cirrhosis and
healthy subjects (658±138.2 pg/ml, 378±25.5 pg/ml, 356.3±29 pg/ml) respectively. sGPC-3 sensitivity
was 96.6% and specificity was 100%. The area under the ROC curve (AUC) for GPC3 was 0.999
(0.996- 1.0).
In comparison, the mean of AFP was significantly higher in HCC (16.9±11.7 ng/ml) than in LC (6.7±7.6
ng/ml) and in healthy subject (3.3±2.1 ng/ml) and AFP sensitivity was 43,3 %, specificity was 95 %
with an AUC of 0.808 (0.696- 0.921).
The combination of GPC-3 with AFP achieved the highest sensitivity (97.1%) and specificity (97%).
Conclusion
Serum GPC3 has a higher sensitivity than AFP for the early diagnosis of HCC.
Combination of two markers showed greatest diagnostic accuracy.
8.The effects of Particulate matter (PМ2.5) pollutants on cancer cells in in vitro model
Baljinnyam T ; Bilguun E ; Batchimeg B ; Zolzaya D ; Lkhaasuren N ; Oyungerel G ; Munkhtsetseg B ; Khaliun M ; Khulan U ; Batkhishig M ; Uranbileg U ; Sonomdagva Ch ; Bilegtsaikhan Ts ; Munkhbayar S ; Munkhtuvshin N ; Erkhembulgan P
Mongolian Medical Sciences 2021;197(3):17-25
Introduction:
Air pollution has become one of the major problems in socio-economic and health
issues in Mongolia. Among the various hazards of particulate matter (PM) pollutants, microorganisms
in PM2.5 and PM10 are thought to be responsible for various allergies and for the spread of respiratory
diseases. Recent studies have shown that PM2.5 particles can cause chronic heart failure, heart
arrhythmias, and strokes, as well as lung damage, cirrhosis, inflammation, cancer, cardiovascular
disease, and metabolic disorders. Furthermore, some studies have concluded that PM2.5 particles
in the environment are a risk factor for gastrointestinal, liver, colon, and lung cancer as well as it
affects the growth and metastasis of various cancer cells caused by other factors. In our country, the
health effects of air pollution and the relationship between the pathogenesis of cancer research are
scarce. Therefore, the study of the effects of PM2.5 particles on cancer cell proliferation, migration
(metastasis) can provide a significant role for cancer treatment, diagnosis, and prevention.
Purpose:
Determining the effects of PM2.5 particles on cancer cell proliferation, migration (metastasis)
in in-vitro
Material and Methods:
A human liver cancer cell line (HepG2), human gastric cancer cell line (AGS)
were obtained from the central scientific research laboratory in the Institute of medical sciences.
HepG2, AGS cells were seeded at a concentration of 1*105 cells/mL in a culture flask and cultured
in RPMI-1640 medium supplemented with 10% FBS, 1% antibiotic mix (penicillin, streptomycin) in a
humidified atmosphere of 5% CO2 at 37 °C. The cytotoxic effect of PM 2.5 in AGS, HepG2 cells were
evaluated by MTT, CCK8 assays. AGS, HepG2 cells were incubated in 96 well plates for 24h then
treated with different concentrations (0, 5, 10, 25, 50 and 100 μg ) of Bayankhoshuu, Buhiin urguu,
and Zaisan samples for 24h, respectively.
Results:
Concentrations of 10, 25, and 50 μg/ml of samples collected from the Bukhiin urguu and
Zaisan in March increased HepG2 cell growth, while doses of 25, 50 μg/ml of samples collected from
Bayankhoshuu in March and December increased HepG2 cell growth. Therefore, concentrations of
25 and 50 μg/ml of samples collected from Bayankhoshuu in March increased AGS cell growth, while concentrations of 25, 100 and μg/ml of samples collected in December increased AGS cell growth.
However, no cytotoxic effect was observed in the sample collected from Zaisan in March, whereas
the PM2.5 sample enhanced AGS cell growth in dose dependent manner in December.(p <0.05)
Conclusion
High levels of heavy metals were detected in samples collected in December from
Bayankhoshuu, Bukhiin urguu and Zaisan of Ulaanbaatar. Concentration of 25 μg/ml of samples
collected from the Bukhiin urguu and Zaisan in March increased HepG2 cell growth. Concentrations
of 25 μg/ml of PM2.5 collected from three regions around Ulaanbaatar increased HepG2 and AGS
cell migration.
9.The risk assessment of gastric cancer and precancerous condition using serum pepsinogen and H.pylori antibody test
Ganchimeg D ; Dashmaa A ; Tegshjargal B ; Batchimeg B ; Baljinnyam T ; Nasanjargal T ; Bayar D ; Batbold B ; Tulgaa L
Mongolian Medical Sciences 2021;197(3):33-39
Background:
The incidence of gastric cancer has been declining worldwide in recent years; on the
contrary, it has increased in the last decade in Mongolia. In Mongolia, over 80% of gastric cancer cases
are diagnosed in the late stage. We performed a gastroduodenoscopy for screening and histological
evaluation to diagnose gastric cancer. These methods are an effective diagnostic modality for gastric
diseases; however, invasive and cause discomfort, making it an undesirable procedure for patients.
Aims:
To determine serum PGs and H.pylori IgG in atrophic gastritis and gastric cancer patients and
evaluate the risk by ABC(D) classification.
Materials and Methods:
We selected 40 atrophic gastritis and 36 newly diagnosed gastric cancer
patients from National Cancer Center of Mongolia, before surgery and other therapies. Besides, we
enrolled population-based 38 healthy controls. Subjects of three groups were matched by age (±1)
and sex. Written informed consents were obtained from all subjects. The fasting blood samples were
collected and tested PGI, PGII, and H.Pylori IgG levels by enzyme-linked immunosorbent assay.
Also, PGI to PGII ratio (PGI/II ratio) was calculated. We classified subjects into four groups based on
ABC(D) classification. All statistical analyses were performed by SPSS (version 26.0, Chicago, IL,
USA) software.
Results:
Median age of the subjects was 62, 52.6% (n=60) were male. Proportions of family history
of gastric cancer and previous history of gastric disease were significantly higher in the gastric cancer
group compared with atrophic gastritis and healthy control groups (p<0.05, p<0.05). H.pylori was
positive in 67 (58.8%) subjects according to H.pylori IgG assay and there was no difference between
study groups. The serum PGI level and was significantly decreased in gastric cancer and atrophic
gastritis groups as compared to the healthy control (p<0.05, p<0.05). The PGI/II ratio was significantly
lower in the gastric cancer group compared with the healthy control (p<0.01). The optimal cut off
value of PGI was ≤35.25 ng/ml (AUC 64.3, 95% CI 51.3-77.2, p<0.05) for gastric cancer and PGI was
≤75.07 ng/ml (AUC 65.2, 95% CI 53.0-77.3, p<0.05) for atrophic gastritis. Also, the optimal cut off
value of PGI/II ratio was ≤5.27 (AUC 71.6, 95% CI 69.6-82.8, p<0.01) for gastric cancer and PGI/II
ratio was ≤6.25 (AUC 62.7, 95% CI 50.1-75.3, p<0.05) for atrophic gastritis. According to classification
of atrophic gastritis patients and healthy control, group D had higher proportion of atrophic gastritis
cases than group A, B and C (OR 5.04, 95% CI 1.13-22.50, p<0.05). According to classification of
gastric cancer patients and healthy control, groups C had higher proportion of gastric cancer cases
than group A, B and D (OR 6.19, 95% CI 1.04-36.78, p<0.05).
Conclusion
Our findings suggest that PGs level and H.pylori IgG may predict development of gastric
cancer and could identifying individuals at high risk of gastric cancer and precancerous lesions who
may need endoscopy.
10.Method validation of calycosin-7-O-β-D-glucoside in “Astragalus mongholicus” injection by High-performance liquid chromatography
Tsendbadam B ; Battulga B ; Lkhaasuren L ; Baljinnyam I ; Tsetsegmaa S ; Khurelbaatar L ; Munkhtsetseg R
Mongolian Medical Sciences 2021;195(1):43-50
Introduction:
Calycosin-7-O-β-D-glucoside is a glycosyloxyisoflavone that is calycosin substituted by a beta-D-glucopyranosyl residue at position at 7 via a glycosidic linkage. calycosin-7-O-β-D-glucoside, a
calycosin derivative compound derived from Astragali Radix, has protective effect against ischemia/
reperfusion injury as well as bacterial endotoxin-induced vascular cell injury. A joint research team of
the “Tsombo Pharm” Co., LTD and the Drug research Institute is conducting an experiment to produce
a solution of “Astragalus mongholicus” injection prepared by Astragalus mongholicus bunge.
Goal :
The aim of this study was to develop the validation method of Calycosin-7-O-β-D-glucoside in
“Astragalus mongholicus” injection.
Material and Methods:
As a test sample “Astragalus mongholicus” injection was produced by “Tsombo pharma” Co., LTD.
The starndard Calycosin-7-O-β-D-glucoside was supplied from Xilong Scientific Co., Ltd. The reagent
were high-performance liquid chromatography (HPLC) grade acetonitrile, formic acid, methanol and
purified water. Shimadzu HPLC (CMB-20 A, UV detector Shimadzu SPD-20A was used as the
analytical instrument and the analysis conditions were as follows Table 1.
Results:
The calibration curves for Calycosin-7-O-β-D-glucoside were made by plotting the peak area versus
the concentration for each analyte using regression analysis. Each calibration curve was obtained
using six levels of concentrations in the range 12.5-100µg/ml. The linear correlation coefficient (R2)
for all calibration curves was higher than 0.9981 for all analytes. The limit of detection and limit of
quantitation for Calycosin-7-O-β-D-glucoside were in 10.37 µg/ml and 31.45 µg/ml. Accuracy and
precision were assessed by analyzing five sets of samples, independently prepared at low (50%)
middle (100%) and high (150%) concentrations. The RSD values of both repeatability and intermediate precision were below 0.68% and 0.618% the accuracy remaining between 95.55 to 101.71%. The
resulting accuracy data were satisfactory for the quantitative analysis of Calycosin-7-O-β-D-glucoside
in “Astragalus mongholicus” injection.
Conclusions
Finally, this method can be employed conveniently, reliably and successfully for the estimation
of Calycosin-7-O-β-D-glucoside for routine quality contral and stability studies in “Astragalus
mongholicus” injection.

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