1. THE LEVEL OF FREE AND BIOAVAILABLE TESTOSTERONE IN MEN AGED ABOVE 40 YEARS OLD
Oyun-Erdene R. ; Nansalmaa N. ; Munkhtsetseg J.
Mongolian Pharmacy and Pharmacology 2013;2(1):11-
Introduction: With the average longevity in men and women, sexual health concerns have become more and more important and demands for help are far more common than in the past. The percentage of aging population is increasing also. A metabolic and hormonal change occurs in male during aging.The level of total, free and bioavailable testosterone decline with aging and it leads to decrease in sexual activities, metabolism and also the life quality.The aim of this initial study was the determination of free testosterone and bioavailable testosterone and it was the novelty of our study. Data obtained from our research can be used as basic information for hormone replacement therapy in late onset hypogonadism.Research goal: To study the free testosterone and bioavailable testosterone level in aging malesMaterials and Methods: This study is a part of study: “Androgen status of aging males” which was supported by Asian Research Center, Korean Foundation for Advanced Studies. The study was approved by IRB of MoH and written consent was obtained from all participants.Fasting blood samples were collected in the morning between 8.00-10.00 AM. We used commercial ELISA kits from Magiwel CoLtd (USA) for determining the total testosterone, sex hormone binding globulin levels. Bromcresol green method was used in determination of serum albumin level. Bioavailable and free testosterone were calculated by Alex Vermeulen, Lieve Verdonk and M. Kaufman’s formula, which was recommended by International Society for the Study of Aging Male.We studied 114 healthy males aged above 40 years old, all undergone the General and Urological examination.Result and discussion: The average age was 57.48±10.48 years in our study participants. In group of 40-49 years were 29% (n=33), in 50-59 age group 23% (n=26), in 60-69 age group 27% (n=38) and in age group over 70-s were 15% (n=17).Mean total testosterone was 6.04±1.83 ng/ml, in 40-49 age group it was 6.14±1.65 ng/ml, in 50-59 age group 6.04±2.36 ng/ml, in 60-69 age group 6.05±1.80 ng/ml, and over 70’s it was 5.85±1.43 ng/ml.Mean sex hormone binding globulin was 50.22±29.97 nmol/l, in 40-49 age group 37.60±23.03 nmol/l, in 50-59 age group 47.08±29.61 nmol/l, in 60-69 age group 57.24±33.91 nmol/l, and over 70’s it was 59.22±25.38 nmol/l.Mean albumin was 40.86±6.89 g/l, in 40-49 age group 44.55±5.93 g/l, in 50-59 age group 41.85±6.93 g/l, in 60-69 age group 38.92±6.85 g/l, and over 70’s was 36.55±4.77 g/l.Mean free testosterone was 0.112±0.064 ng/ml, in 40- 49 age group 0.124±0.058 ng/ml, in 50-59 age group0.114±0.077 ng/ml, in 60-69 age group 0.107±0.072 ng/ml, and over 70’s it was 0.097±0.044 ng/ml.Mean bioavailable testosterone was 2.53±1.48 ng/ ml, in 40-49 age group 2.76±1.37 ng/ml, in 50-59 age group 2.60±1.70 ng/ml, in 60-69 age group 2.51±1.56 ng/ml, and over 70’s it was 2.04±1.05 ng/ml.Conclusion:1. In our participants aged above 40 years old, the average mean of free testosterone was 0.112±0.066 ng/ml, free testosterone index was 16.95±11.82. Free testosterone had inverse correlation with aging (r=-0.168, p=0.03) and had peer decline among aging groups.2. The average mean of bioavailable testosterone was 2.53±1.48 ng/ml, and had age related inverse correlation (r=-0.169, p=0.037), which decline was deeper in men aged over 70 years.Key words:Aging, total, free, bioavailable testosterone,free testosterone index
2.Bioavailable testosterone and age correlation in aging males
Oyun-Erdene R ; Nansalmaa N ; Munkhtsetseg J
Mongolian Medical Sciences 2011;172(2):17-19
Introduction: With the increasing longevity in men and women, sexual health concerns have become more and more important and demands for help are far more common than in the past. The percentage of aging population is increasing also. The of this study in aging men. Late onset hypogonadism will need the testosterone replacement therapy and we hope that our study result will help to get basic information of testosterone among over 40 yearsold Mongolian men.Goal: To determine the bioavailable testosterone (BT) of aging males and correlate with aging process.Materials and Methods: This study is a part of ongoing study: “Androgen status of aging males” which was supported by Asian Research Center, Korean Foundation for Advanced Studies. We studied 114 healthy males aged above 40 years old, all undergone the General and Urological examination. Bioavailable testosterone was determined by formula suggested by ISSAM.Result: The average bioavailable testosterone level was 2.53±1.48 ng/ml, in 40-49 age group 2.76±1.37 ng/ml, in 50-59 age group 2.60±1.70 ng/ml, in 60-69 age group 2.51±1.56 ng/ml, and over 70’s it was 2.04±1.05 ng/ml. If consider the bioavailable testosterone 100%, in 40-49 age than it is decreasing 94.2% in 50-59, 90.9% in 60-69 ages and 73.9% decreased in over 70s. Respectively, it decreases approximately by 0.9% every year after 40’s.Conclusion: The bioavailable testosterone level was 2.53±1.48ng/ml in aging males and has reverse correlation with aging (r=-0.169, p=0.037).
3.Free testosterone and age correlation in mongolian aging males
Oyun-Erdene R ; Nansalmaa N ; Munkhtsetseg J
Mongolian Medical Sciences 2011;155(1):20-22
Materials and Methods: We studied 114 healthy males aged above 40 years old, who undergone urologists examination and General practitioner. All men answered the Aging Males’ Symptom Scale questionnaire. This is part of the ongoing study Mongolian males Andrological Status sponsored by Asian Research center, Korean Foundation for Advenced Studies. Formal concent permission was obtained from all participants, which approved by Ethical Committee of MoH. We took 4 ml blood from vien between 8-11am and determined testosterone, SHBG by ELISA and albumin by liquicolor reagent. Bioavailable testosterone was calculated, using previously described mathematical modeling, suggested by ISSAM.Result: The average free testosterone level was 0.112±0.06 ng/ml, in 40-49 age group 0.124±0.05 ng/ml, in 50-59 age group 0.114±0.07 ng/ml, in 60-69 age group 0.107±0.07 ng/ml, and over 70’s it was 0.097±0.04 ng/ml. If consider the free testosterone 100%, in 40-49 age than it is decreasing 91.6% in 50-59, 83.3% in 60-69 ages and 75% decreased in over 70s. Respectively, it decreases approximately by 0.8% every year after 40’s.Conclusion: The free testosterone level was 0.11±0.06 ng/ml in aging males and has reverse correlation with aging (r=-0.168, p= 0.03).
4.The detection of the testosterone deficiency syndrome in aging males with erectile dysfunction
Nansalmaa N ; Oyun-Erdene R ; Namsrai M ; Мunkhtsetseg J
Mongolian Medical Sciences 2012;159(1):22-25
Introduction: Erectile dysfunction (ED), also known as impotence, is defined as a consistent or recurrent inability to attain and/or maintain penile erection sufficient for sexual performance [1]. According to recent study results, ED occurs more than 50% over 60 year old males, emphasizing a need to diagnose and treat it at an earlier stage. ED may be assessed in several ways. The most widely used standardized questionnaire is the International Index of Erectile Function (IIEF) with 15 questions, which also exists in a short form with 5 questions [2]. On the other hand, ED is associated with a decreased level of androgens in aging males; the latter is often referred to as a Late Onset Hypogonadism (LOH) or Testosterone Deficiency Syndrome (TDS). In simple terms, LOH or TDS can be defined as a decreased serum testosterone level in aging males [3, 4]Objective: To detect the testosterone deficiency syndrome in aging males with erectile dysfunction. Materials and Methods. 309 males over 40 years of age who received medical care at the ADAM urological and andrological clinic from 2010 to 2011 were included in this study. An approval of the Ethical Committee of MOH was obtained at the commencement of the study. Each study participant signed a consent form at the beginning of the study. Each participant was assigned to either an ED group or a control group depending on results of the IIEF-5 questionnaire. The ED group was further divided into three groups (moderate, severe and very severe) based on a level of ED. The total testosterone (TT) levels were determined in blood serum, using a competitive ELISA analytical system UBI MAGIWELTM TestosteroneQuantitative test (GLS, USA), with C.V. (%) 6.8 and free testosterone (FT) calculated as described by Vermeulen. Test samples were collected between 8.00-11.00 am. The biochemical diagnosis of TDS was based on the Study Aging Male (ISSAM) guidelines of the International Society, particularly, if TT was _3.46 ng/ml or free testosterone FT was ≤0.072 ng/ml [5].Results: ED of moderate, severe and very severe levels were diagnosed in 199 (64.41%) out of 309 participants. There was an inverse association between an erectile function and age (r=-0.380, p <0.01). The average TT was 5.75±2.316 ng/ml and FT was 0.091±0.0084 ng/ml. Compared to the ED group, the control group had a higher TT level: 5.6440±1.177 ng/ml and 5.812±2.316 ng/ml respectively. In the control group the FT level was 0.061±0.0084 ng/ml whereas it was 0.041±0.0076 ng/ml in the ED group. Conclusion: Our study showed that most of aging males who came to the clinic had a moderate to very severe ED (64.55%). The level of TT (5.644±1.177 ng/ml) and FT (0.041±0.0036 ng/ml) was significantly lower in ED patients (p<0.05). The testosterone deficiency syndrome was detected in 24.27% of the ED group.
5.The study of androgen receptor gene cag and ggn polymorphism in relation with androgen status
Munkhtogtokh J ; Buyankhuu T ; Tuul B ; Oyun-Erdene R ; Munkhtsetseg J
Mongolian Medical Sciences 2013;166(4):6-8
Background: Discrepancies in the sensitivity to biological effects of the androgens, exerted through the binding of the hormone to the androgen receptor (AR), may also be involved in the inter-individual variation of T as well as in age related decline. The human androgen receptor (AR), located on chromosome Xq11-12, is a transcription factor regulating the development of male reproductive organs in the fetus and secondary sex characteristics at puberty in response to testosterone (T) and 5a-dihydrotestosterone (DHT). The AR contains two polymorphic regions, the (CAG)nCAA repeat encoding polyglutamine, and the (GGT)3GGG(GGT)2(GGC)n repeat encoding polyglycine, commonly referred to as the CAG and GGN repeats respectively. The aim of this study is to investigate the effect of the human androgen receptor genes CAG and GGN repeat polymorphisms in relation with androgen level.Materials and Methods: Sample collection: 180 male, the medical data of these volunteers were obtained and determined some androgen hormones at first phase of study in 2010-2011 (total testosterone (TT), free testosterone (FT) and bioavailable testosterone (BAT)). To determine CAG/GGN repeats length in exon of androgen receptor gene, using frozen serum as a source of deoxyribonucleic acid (DNA). DNA was extracted from blood samples (200 ml) using High PurePCR Template Preparation Kits.Results: The 180 men whose age is at least 40 were involved in our research and their average age was 55.1±10.3. The 46.7% (84) of the participants presents CAG gene, the 6.1% (11) of the participants presents GGN gene while the 25.5% (46) of the participants presents both CAG and GGN genes. However, the 21.7% of 39 men not presents CAG and GGN genes.Conclusion: The free testosterone level was significantly decreasing with aging. However, the appearance of CAG gene polymorphism was significantly higher in more aged people. Decline of free testosterone level in participants with CAG and [CAG+GGN] combined form was stronger than in people with GGN gene polymorphism and CAG, GGN both undetected people. But the level of bioavailable testosterone was decreasing with aging and the appearance of CAG gene polymorphism (r=-0.425, p=0.01) and [CAG+GGN] combined form (r=-0.491, p=0.028) was also increasing.
6.Allium polyrhizum Turcz.ex Regel results of aboveground research
Oyun-Erdene R ; Gereltu Borjihan
Mongolian Medical Sciences 2023;203(1):39-43
Introduction:
Human beings have been using raw materials of plant and animal origin for the treatment of various diseases. Nowadays, in developed and developing countries, plant raw materials are widely used in traditional medicine, health care, and food supplements, and they are used as raw materials in pharmaceutical production, making up a large part of the world pharmaceutical market. Therefore, research activities are intensively carried out to determine the chemical composition and mineral content of plant-derived raw materials and explain the mechanism of action.
Goal:
Allium polyrhizum Turcz.ex Regel determination of chemical compounds macro and micro elements and amino acids
Material and Methods:
Allium polyrhizum Turcz.ex Regel was collected and prepared from Huvut shar Khoshun, Shili River Province, Institute of Mongolia medicine chemistry, Inner Mongolia university, Inner Mongolia Key Laboratory Medicine Chemistry. then it was made into a type with 0.075 mm particle size by a grinding machine.
Result:
Dete-rmining the elemental composition of plant raw materials is important for determining the therapeutic value and safety of the plant. Some elements in Allium polyrhizum Turcz.ex Regel were determined by X-ray fluorescence method.
Conclusions
1. In this study, the content of 7 elements in the above-ground part of Allium polyrhizum Turcz was determined using the XRF analysis method. Of the macro and micro elements such as Ca, K, Mn, Fe, Na, Zn, and Mg, which are essential for the human body, potassium (K) 49.7 mg/kg, calcium (Ca) 45.7 mg/kg, and sodium (Na) 31.0 mg/kg are the most had a high concentration.
2. Among various amino acids involved in protein synthesis, glutamic acid 1.89 mg, aspartic acid 1.48 mg, and alanine 1.00 mg were identified.
7.Results of the study on pathogens in vaginal smear tests
Mungunshagai A ; Oyun-Erdene R ; Munkhzul N
Mongolian Medical Sciences 2024;208(2):3-7
Introduction:
Although bacterial vaginosis prevalence varies across countries and populations, recent systematic
reviews and meta-analyses indicate that 23–29% of women of reproductive age are infected. Each
year, 21.2 million (22.9%) women between the ages of 14 and 49 in the United States develop bacterial
vaginosis. Microenvironments are interconnected with the endocrine, immune, and other organ
systems and dependent upon external and internal environmental influences. In women between the
ages of 15 and 44, bacterial vaginosis is the most common vaginal disorder, according to the Centers
for Disease Control and Prevention.
In our nation, 93.4% of women who are of reproductive age have vaginalis; the percentage of cases
with Gardnerella vaginalis alone is 22.6%, and 53.1% have it in combination with other anaerobic
bacteria, which is a significant percentage. Our research is based on the lack of information about the
vaginal environment of Mongolian women and factors influencing changes in the microenvironment.
Our research is based on the lack of information about the vaginal environment of Mongolian women
and factors influencing changes in the microenvironment.
Goal:
The objective is to study how age relates to the development of bacterial and fungal vaginitis through
the analysis of vaginal swabs.
Materials and Methods:
For our study, we selected 100 women aged 20-59 through targeted sampling from clients who
underwent vaginal smear tests at “Yu Bi Lab” laboratory and “Tsetsuu” diagnostic center in Ulaanbaatar
in 2023. Vaginal smear analysis was conducted using Nugent’s criteria and Gram staining. Statistical
analysis was performed by comparing pathogens among the participants based on age using
Pearson’s correlation method. We obtained permission to conduct research.
Through the Etugen University Biomedical Ethics Comittee convention held on march 11,2024
Results:
The study divided 100 women into four age groups to examine the vaginal environment with their age
and the factors influencing it. The research aimed to understand how bacterial vaginitis and fungal
vaginitis evolve during reproductive age and menopause. Among the age groups, women aged 20-29
had an average of 5.59±3.35 epithelial cells (n=32), those aged 30-39 had 6.10±3.29 (n=37), women
aged 40-49 had 6.70±3.90 (n=17), and women aged 50-59 had the highest number of epithelial cells
at 9.42±8.19 (n=14), representing 34% of the group.
Conclusion
1. Women of reproductive and menopausal age experience changes in the vaginal environment due to
various factors. This includes a decrease in the ratio of normal microorganisms and lactobacilli, an increase in the number of conditional pathogens, and the development of an alkaline environment
in the vagina.
2. Bacterial vaginitis predominantly affects younger women, with symptoms often being subtle. In
contrast, fungal vaginitis is more common among menopausal women. Lower estrogen levels in
women in this age group cause lactobacilli to break down glycogen less efficiently into lactic acid,
even though the number of lactobacilli is still normal. This research implies that suppositories and
estrogen pills may help treat these problems for women between the ages of 40 and 59.
8.Comparative study results of serum vitamin D status in trained athletes in Mongolia
Oyu-Erdene Kh ; Bulgan M ; Oyun-Erdene R
Mongolian Medical Sciences 2024;207(1):8-14
Introduction:
The last decade has seen a dramatic increase in general interest in and research into vitamin D, with
many athletes now taking vitamin D supplements as part of their everyday dietary regimen. The most
recognized role of vitamin D is its regulation of calcium homeostasis; there is a strong relationship
between vitamin D and bone health in non-athletic individuals. Vitamin D is responsible for regulation
of calcium and phosphate metabolism and maintaining a healthy mineralized skeleton. It is also known
as an immunomodulatory hormone. Experimental studies have shown that 1,25-dihydroxyvitamin D,
the active form of vitamin D, exerts immunologic activities on multiple components of the innate and
adaptive immune system as well as endothelial membrane stability. Studying the level of vitamin D in
athletes in relation to age group, body mass index, and type of sport is important for reducing the risk of
injury and infection in athletes and improving performance and success in sports.
Goal:
To determine the 25-hydroxyvitamin D [25(OH)D] levels in the plasma of the trained athletes and their
vitamin D status to compare of their sports type.
Materials and Methods:
Sample size
Using a cross-sectional design, a total of 71 athletes aged 20-43 from the sports medicine research
center and the national team was selected by sampling.
Method of the Laboratory analyses
The body mass index and blood plasma level of 25 hydroxy vitamin D of the athletes participating in the
study were compared by sports type and analyzed using descriptive statistics. Comparison of survey
data was performed using Pearson’s correlation method.
Results:
In the study, 71 athletes of the Mongolian national team participated in 5 types of sports. Descriptive
analysis was performed on the general parameters of the athletes, body mass index, type of sport, level
of vitamin D in the blood, etc.
An avarege level of vitamin D of the athletes who participated in our study were 22.27±12.9 ng/ml, in the age group of 20-29 years, and compared to the body mass index, it was the highest level in the athletes of normal weight.
Conclusions
1. The level of vitamin D of the athletes who participated in our study was the highest in the age group
of 20-29 years, 22.27±12.9 ng/ml, and compared to the body mass index, it was the highest level
in the athletes of normal weight.
When studying the level of vitamin D of the participants in comparison with the type of sport, the
freestyle wrestlers had a higher level of 34.75±15.13 ng/ml, while the judo wrestlers had a lower
level of 12.69±5.17 ng/ml.
9.Results of thyroid hormone levels in women
Bolor B ; Bat-Erdene D ; Oyun-Erdene R
Mongolian Medical Sciences 2024;208(2):8-12
Introduction:
The average age of the population varies in every country of the world, which depends on the changes
that occur in the body during aging and many external and internal factors that affect it. Thyroid
hormones play an important role in ensuring and maintaining normal metabolic function throughout
life. Our country is located in a mountainous region of the mainland, the amount of iodine in drinking
water is low, and the amount of iodine taken from food is low, which creates the risk of iodine deficiency
disorders. Therefore, we aimed to study how the thyroid function changes with age in Mongolian
people.
Goal:
A comparative study of thyroid hormone secretion levels in adult women.
Material and Method:
In our study, 83 women over the age of 20 were selected based on the “Yu Bi Lab” diagnostic center.
Triiodothyronine (T3), thyroxine (T4), and thyrotropin (TSH) of the women participating in the study
were determined using the FHU method using the Magiwel ELISA diagnostic kit manufactured by
United Biotech.
Results:
81 women over 20 years of age participated in our study, the average age was 44.45±14.17, and the
participants were divided into 5 groups with 10 age intervals. 20-29 years 18% (n=15) average age
24.6±2.64, 30-39 years 22% (n=18) average age 33.6± 3.12, 40-49 years 16% (n=13) average age
45.15±1.67, 50-59 years 25% (n=20) average age 54.15±2.99, 60-69 years 19% (n=15) average age
63.73± 3.05, were.
Conclusion
1. When comparing T3 and T4 hormones by age group, T3 hormone is higher in the 30-39 age group
at 5.05 ng/ml. The T4 hormone gradually decreases with age.
2. Thyroiodin hormone increased with age. The relationship between the age of the participants
and TSH hormone was directly related to statistical age when calculated by Pearson’s correlation
coefficient (p=0.01).
10.Effects of some syrups on citric acid induced cough in rat
Munkh-Erdene R ; Davaasambuu V ; Bat-Oyun U ; Ahsholpan B ; Badamtsetseg S ; LKhaasuren R ; Hurelbaatar L
Mongolian Pharmacy and Pharmacology 2023;23(2):20-25
Abstract:
In Mongolia, flu and flu-like diseases affect many people, and pneumonia is a public health concern. Therefore, we have an urgent need to research and develop a new medicinal syrup to replace imported products using raw materials grown in Mongolia and to compare it with similar products. There are imported cough syrup products on the pharmaceutical market of Mongolia, but there are domestic pharmaceutical products. Moreover, there is limited research data on cough relief. The main goal of the research team is to compare the experimentally obtained syrup containing Plantago asiatica L, Malva Sylvestris L. and syrup containing Plantago major L. Juice, honey that produced by Monos Pharm LLC whish the cough relieving drug Gerbion syrup.
Material and methods:
The vivarium of the pharmacology laboratory, Drug research institute,
TPC7062Ti mark IVC system (Shanghai Pretty Industries Co.,Ltd, China) in a special environment
with one care and one feeding regimen (Lab Mice Diet, Constant Formula Balanced Nutrition,
Jiangsu Xietong Pharmaceutical Bio- Engineering Co., LTD, China, www.jsxtsw.com ) used 64
non-WISTAR white rats weighing 180-218 g. Experimental rats were smoked with an aerosol of
17% citric acid aqueous solution for 5 minutes. The statistical processing of the research results
was done using the One-Way ANOVA/Multiple comparisons data of the GraphPad Prism 8 program.
Results and conclusion
Expressing the number of coughs produced in the experimental rats as
a percentage (%), the control group showed 3.95% cough relief, and the experimental group-1 by
48.4%, experimental group-2 by 71.1%, comparison group by 74.6%, respectively has reduced.
Experimental group -2 and comparison group for dry cough caused by citric acid 17%, it affects
the cough receptors in the mucous membrane of the respiratory tract and relaxes the bronchial
muscles (A and C fiber).