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.Assessing children with disabilities using who international classification of functioning (ICF)
Norovnyam P ; Tserendulam N ; Oyunkhand E ; Tuul O ; Amarjargal O ; Baljinnyam B ; Nasantogtokh E ; Altantuya Sh ; Enkhmaa D
Mongolian Journal of Obstetrics, Gynaecology and Pediatrics 2022;31(1):2265-2271
Assessing children with disabilities using who international classification of functioning (ICF)
Background: In 2021, according to the World Health Organization (WHO), over 1 billion people are estimated to experience disability. The number of children with disabilities globally is estimated at almost 240 million, according to a new UNICEF report. There are approximately 43 million children with disabilities in East Asia and the Pacific. In the 2020 population and housing census of Mongolia, a total of 106.4 thousand people with disabilities were counted, of which 7.6 percent or 8.1 thousand children aged 0-14 were counted. People with disabilities lose some of their ability to labor. WHO recommended that assessment of children with disabilities using both ICD and ICF. Thus, we aim to assess children with disabilities who have neurological disease using International Classification of Functioning and evaluate the validity of this classification.
Materials and methods: This was a cross sectional analytical study based on NCMCH. Study materials were collected from children and guardians through standard questionnaires. The questionnaire consisted of 2 groups: general information of the participant and indicators of the scope of the D code of the "ICF" to assess the childhood disability. According to the indicators of the D code range, activity limitations and participation restriction, disabilities were evaluated. Each question in the questionnaire was measured on a 5-point Likert scale from 0 to 4. The statistical analysis was performed using R 3.5.1 program. Validity was assessed using the Rasch model for each question. Questionnaire reliability was assessed by Cronbach's alpha test.
Results: The study included 32 children aged 2-15 years. Male children were 62.5% of participants, the mean age was 8±3.1 years. Correlation between questions was high (r = 0.79) and reliability was adequate (α=0.94). As a result of Rasch analysis, the mean and standard deviation of the 36 selected parameters were not significantly different from the standardized mean. 3 indicators that did not meet the analysis criteria were removed, and a total of 33 indicators were used to measure childhood disabilities. Mean infit MNSQ was 1.06, mean outfit MNSQ was 0.93. MNSQ of all participants were 1.0 – 2.0. As a result of Rasch analysis, the mean of 33 indicators of disability is -1.6, the standard deviation is 1.2, the upper limit of the mean is 3.6, and the lower limit is -3.4, and the indicator of D code was stable enough to measure disability. The mean code scores were 2.45±1.3. The mean score of disability level of children diagnosed with cerebral palsy was 2.9±1.09, and children hospitalized with seizures and meningitis was 0.5±0.3. Also, the total mean score was 2.61±1.2 in the group with disability and receiving care, and 1.8±0.21 in the group not receiving care, which was a statistically significant difference.
Conclusions: Inter-indicator correlation was good and reliability of the questionnaire was adequate in field use of the 38 indicators of the activity limitations and participation restriction of the International Classification of Functioning, Children's Version (ICF-CY) code range “D”. When evaluated by Rasch analysis, 33 questions were evaluated as structural and stable. The International Classification of Functioning can be used to assess children's disabilities.
Discussions: Niels Ove Illum et al. (2015) found that The World Health Organization International Classification of Functioning, Disability and Health child and youth version d code data can provide a coherent measure of severity of disability in children across various diagnoses, ages, and genders. Results were similar to our study.
5.Relationship between quality of life, depression and burden of mothers with child withсerebral palsy
Dulamjav S ; Nasantogtokh E ; Baljinnyam B ; Tuul O ; Unaganshagai A ; Oyunchimeg G ; Davaahuu V
Mongolian Journal of Obstetrics, Gynaecology and Pediatrics 2022;31(1):2272-2277
Relationship between quality of life, depression and burden of mothers with child withсerebral palsy
Background: Regular care and treatment of children diagnosed with cerebral palsy can be time-consuming and costly, increasing the risk of burden and depression, and adversely affecting quality of life. So there are many reasons why mothers' quality of life is poor socio-economic status and support related to the family, cerebral palsy from child care techniques and understanding of the disease the quality of life of mothers with sick children depends. There are few studies in Mongolia that assess the quality of life and other factors of mothers with cerebral palsy. We aimed assessing the relationship between quality of life, stress and depression in mothers with children with cerebral palsy.
Materials and methods: The survey was conducted to the cross-sectional design of the analytical study based on the NCMCH. The study included 70 mothers with children with cerebral palsy. The survey data were collected using a general demographic questionnaire and three groups of questionnaires (WHOQOL-BREF, Stephen Zarit, Beck’s ). Quality of life and burden were measured as minimum <5, maximum 95 and minimum >20, maximum <88 respectively. Depression score measured as minimum >10, maximum <40.
Results: The average quality of life of all mothers was 52.43 ± 11.95, environment was 44.8 ± 15.8. Maternal depression rates were 21 (30%), 90.0% of mothers had burden, and quality of life was statistically likely to be inversely related to depression and stress.
Conclusion: The poor quality of life of mothers with children with cerebral palsy, high levels of depression and stress indicate the need for policies to reduce the quality of life.
6.Clinical characteristics differences and risk factors of coronavirus disease and influenza in children 0-18 years
Bolormaa T ; Amarjargal O ; Baljinnyam B ; Undrakh Ch ; Altantuya Sh
Mongolian Journal of Obstetrics, Gynaecology and Pediatrics 2022;31(1):2278-2287
Clinical characteristics differences and risk factors of coronavirus disease and influenza in children 0-18 years
Background: In worldwide, 176190 children infected with SARS-CoV-2 during April of 2020. According 01/09/2021, 46019 children had diagnosed with COVID-19 in Mongolia, were 19.5% of all cases. During COVID-19 infection, respiratory and digestive symptoms were commonly presented in children. Although the symptoms of coronavirus disease in children and adults are similar, in general, it was relatively mildly than adults, but from clinical observations reported that the infection occurs more severely in children and leads to death. During the coronavirus pandemic, it has been reported that children have Kawasaki syndrome, cardiac myopathy, coronary artery changes, and digestive system problems. Cardiac dysfunction in children may have recovered without sequelae, and further long-term follow-up studies are necessary. We aimed study clinical characteristics differences and risk factors of coronavirus disease and influenza in children 0-18 years.
Materials and methods: The study was conducted Children hospital of NCMCH from October 01, 2021 to April 01, 2022, participated 594 inpatients with COVID-19 and influenza, and studied clinical characteristics, laboratory and functional diagnostic changes, treatment, and complications of the coronavirus disease and influenza.
Results: The study included 450 children aged 0-18 years with confirmed COVID-19 infection and 144 children with influenza. In social-demographic indicators, the mean age of children is 4±4.8 years, and 58.6% are male. Children age group included 0-4 ages, 5-9 ages, 10-15 ages and over 15 ages (62.4%, 17.5%, 16.2%, and 3.7%), respectively. As for influenza, 39.7% were children aged 0-9. In 8 cases, they received the COVID-19 vaccine but became ill with COVID-19. As for the variants of COVID-19 infection, 231(41.8%) alpha, 219(48.0%) delta, and 144(24.2%) influenza according to the wave period and clinical differentiation. In severity of diseases, 2(0.4%) were mild, 312(69.3%) were moderate, 117(26.0%) were severe, and 17(3.8%) were critical severe. There is a statistically significant difference in the severity of the disease between COVID-19 and influenza. 1 death (0.4%) occurred in cases of COVID-19. The mean days of inpatients with COVID-19 was 12.4±5.5 and mean days of inpatients with influenza 8.6±3.64. When assess signs of children, fever, cough and food aversion were main signs among both group of alpha and delta varientin COVID-19. Specifically, 67.3% had fever, 63.3% cough, 16.4% runny nose, 8% chest pain, 10.2% headache, 15.5% fatigue, and 0.9% decreased sense of taste and smell. There is a statistically significant difference (p<0.000) in the symptoms of cough, chest pain, general toxication symptoms and decreased sense of taste and smell in the case of COVID-19 and influenza. During influenza, symptoms of chest tightness and respiratory distress were observed in 10 (7.4%) children during severe illness. 0.5% of all cases of COVID-19 with sinus arrhythmia, and atrioventricular block were detected 0.9% of all cases by electrocardiogram analysis. When studying the underlying medical conditions of children in relation to the complications of COVID-19 and influenza, children diagnosed with heart defects, malnutrition, weakness, anemia, cerebral palsy, and other chronic diseases have a greater impact on the severity of the disease of COVID-19 than those with influenza. In the study of the factors affecting the severity of the COVID-19 infection, the child's age and gender did not have an effect, while the presence of a heart defect in the child increased the risk of complications by 5 times (p<0.001).
Conclusions: Among 0-4 aged children with COVID-19 are occurred more hospitalization, brightly presented symptoms in children with chronic diseases, are being more severe and hospitalization days are more than in children with influenza. Symptoms of fever, cough, and runny nose are more common in children during flu and influenza, while headache, abdominal pain, dehydration, and reduced sense of taste and smell are significantly more common in the case of COVID-19. On the other hand, symptoms of chest pain, weakness, and fatigue were found in the 2 groups. The comorbidities (congenital cardiac anomalies, malnutrition, weakness, anemia, cerebral palsy, and other chronic diseases) are being risk factors for the severity of coronavirus disease.
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.
Result Analysis
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