1.Result of correlation of depression and other diseases among mongolian elderly
Oyunhand R ; Byambasuren E ; Batsereedene B ; Byambasuren S
Mongolian Medical Sciences 2011;168(1):53-57
Background: Our research team aimed at determining the prevalence of depression and mutual interaction of other diseases among elderly in today’s changing period of morbidity of population due to social and economic transition.Goal: To determine the correlation between depression and other diseases among elderlyObjectives:1. To determine the prevalence of depression among elderly2. To find out the correlation between depression and other diseasesMaterials and method: The research was carried out by cross sectional method. In the research was involved 1207 elderly, who are retired, of which 60 and over for male and 55 and over for female from one cluster of each economic and geographic regions of Mongolia. The depression was evaluated by using Geriatric Depression Scale.Results: In the research was involved 392 (32.5 percent) men, 675 (67.5 percent) women and their mean age was 68.1±8.1 (68.9±6.5 in male and 65.7±8.5 in female) from 4 economic and geographic regions of Mongolia. Among survey involved elderly, 16.5 (199) percent of them were found to have depression. Out of survey involved depressed elderly, 27.6 percent were male and 72.3 percent female. The mean age of depressed elderly was 67.9, in which 67.1 in women and 70.2 in men. Due to depression status among survey involved elderly, the share of elderly, who inclined to affect by depression was 158 (13.1%). Furthermore, 169 (14%) of them were affected by slight depression, while 30 (2.5%) of them were with severe depression.Among survey involved elderly, 24.5 percent of elderly with anxiety were inclined to be affected by depression and 29.2 percent of them were with mildly depression. However, 5.6 percent of elderly with severely level of anxiety were affected by severe depression. It was not found severe depressed elderly among elderly, who did not have anxiety. The depression of elderly and their morbidity has direct correlation. Elderly depression and anxiety has direct medium correlation.Conclusions:1. The prevalence of depression among Mongolian elderly refers 16.5 percent.2. Depression among Mongolian elderly has direct correlation to some investigated somatic diseases.
2.Result of survey on determining the cognitive ability among mongolian elderly
Oyunkhand R ; Byambasuren B ; Batsereedene E ; Byambasuren S
Mongolian Medical Sciences 2011;172(2):78-80
Background: In our country, the survey on mental condition of Mongolian elderly, in particularly on assessing the cognitive status has not provided yet. Goal: To determine the cognitive status of elderly and find out some factors which affect on it. Objectives:1. Determine the cognitive ability of Mongolian elderly2. Find out some factors which affect the cognitive ability of elderlyMaterials and Methods: In this cross sectional study, we had chosen randomizily 1 cluster from each 4 economic and geographic regions of Mongolia and Ulaanbaatar city, and totally comprised of 1207 elderly, of which 60 and over for male and 55 and over for female. The cognitive status of survey involved elderly was evaluated by mini mental examination test (MMET).Results: The mean age of survey involved elderly was 68.1±8.1 (68.9±6.5 in male and 65.7±8.5 in female). While 60.3(728) percent of elderly people were normal, 39.7(479) percent of them estimated to have cognitive decline. Out of elderly with cognitive decline, 59.5 percent had slight cognitive impairment, 35.1 percent moderate cognitive impairment and rest 5.4 percent had severe cognitive impairment. The cognitive impairment predominantly revealed in female and prevailed more in elderly who live in countryside compared to elderly who live in the city (P<0.001). The cognitive impairment was related to educational background of elderly who had cognitive decline. Along the decline of education estimated higher level of cognitive impairment, as well as 47.5 percent of male and 53.8 percent of female, who had lower education, shared most percentage of cognitive impairment, compared to other educational levels.The cognitive impairment is directly correlated to decline of Activity of daily living and Instrumental activity of daily living of elderly (p<0,0001).Conclusions:1. The decline of cognitive status of elderly is correlated to gender. The educational background, income and family are related to their cognitive impairment.2. Activity of daily living and Instrumental activity of daily living have direct correlation to cognitive impairment of elderly.
3.Results of determining some needs of rehabilitation care requirred to elderly of Mongolia
Oyunkhand R ; Byambasuren E ; Zandi N ; Batsereedene B ; Chimedsuren O ; Byambasuren S
Mongolian Medical Sciences 2011;157(3):37-40
Introduction: The issue of meeting need of rehabilitation care service required to elders is one of determinants which influences in enabling quality of life of elderly people. In our country, we lack of survey on determining current need of long term care and one of its form rehabilitation care service for the elderly, so it became the background of the research. Goal: Reveal some needs of rehabilitation care service through determining the Activities of daily living and Instrumental Activities of daily living of Mongolian elderly people Materials and Method: The research was carried out by cross sectional method. In the research was involved 1207 elderly, who are retired, of which 60 and over for male and 55 and over for female from one cluster of each economic and geographic regions of Mongolia. The research was conducted by using ADL and IADL tests as well as questionnaire to determine the needs of rehabilitation care service. Results: Out of survey involved 1207 elderly, 32.5 percent (392) referred to men, 67.5 percent (815) to women, and their mean age was 68.1±8.1 (68.9±6.5 in male and 65.7±8.5 in female). While 473 elderly were from Ulaanbaatar city, 734 of them were from 4 regions of countryside. Among survey involved elderly, the mean of ADL ability was 87.4 percent, of which, the following abilities were better such as: continence (92.5%), toileting (91.3%), dressing (87.9%), while bathing ability was impaired mostly or 18.2 percent. Subsequently, the mean of IADL ability among survey involved elderly was found to be 29.9 percent. The health needs of elderly were differed. Due to extensive indicator, 24.8 percent of elderly wanted to admit in a hospital, 20.8 percent - home nursing care and 32.6 percent -involvement in rehabilitation care service. In terms of amount, the maximum needs were eight, while most of elderly requested 1-3 kinds of needs. Conclusions: 1. The impairment of Activity of Daily Living was found to be approximately 22.6 percent, while Instrumental Activity of Daily Living was 29.9 percent among Mongolian elderly people. 2. The impairment level of Activities of Daily Living and Instrumental Activities of Daily Living indicated the requirement of occupational and physical therapy in health care service for the elderly.
4.Results of determining psychosocial rehabilitation needs of Mongolian elderly
Oyunkhand R ; Byambasuren E ; Zandi N ; Batsereedene B ; Chimedsuren O ; Byambasuren S
Mongolian Medical Sciences 2011;157(3):41-44
Introduction: The mental and behavioral diseases affect in loneliness and discrimination of elderly people and mostly reduce the quality of life of elderly people compared to injury and accidence. Wulf Rossler, Switzerland mentioned that all kinds of mental diseases require long term care, especially rehabilitation. In our country, we lack of survey on determining psychosocial rehabilitation needs for the elderly, therefore it became the background of the research. Goal: Determine the psychosocial rehabilitation needs of Mongolian elderly people Method and materials: The research was carried out by cross sectional method. In the research was involved 1207 elderly, who are retired, of which 60 and over for male and 55 and over for female from one cluster of each economic and geographic regions of Mongolia. The research was conducted by using Geriatric depression test, Spielberg Hanin test to reveal anxiety, Mini mental examination test to assess the cognitive status and AUDIT test to evaluate the alcohol usage. The diagnoses were put according to ICD-10 based on geriatric examination. Results: Out of survey involved 1207 elderly, 32.5 percent (392) referred to men, 67.5 percent (815) to women, and their mean age was 68.1±8.1 (68.9±6.5 in male and 65.7±8.5 in female). While 473 elderly were from Ulaanbaatar city, 734 of them were from 4 regions of countryside. In terms of mental and behavioral diseases, anxiety and depression were prevailing among Mongolian elderly. Thirty eight point five percent of survey involved elderly investigated to have depression and 44 percent - anxiety. Moreover, dementia was found 36 and sleep disorder 28 per 1000 elders. Twenty three point six percent of elderly had slight cognitive impairment, 13.9 percent moderate cognitive impairment, while 2.1 percent had severe cognitive impairment. The cognitive impairment is differed in terms of region. The moderate cognitive impairment predominantly revealed in mountainous and eastern regions, while the severe cognitive impairment was prevailing in central and eastern regions. Due to classification of needs of elderly into medical, financial and other needs, found that, 37 percent of elderly required medical, 33 percent financial and 37 percent other needs. In terms of psychosocial needs, 30.4 percent wanted to have a place for spending free time, 23.9 percent to make new friends and 6.1 percent to hire a job. Also 4.4 percent of elderly had a need of having a caregiver. Conclusions: 1. Out of mental and behavioral diseases, anxiety (38.5 percent) and depression (44 percent) were prevailing among elderly. 2. Each Mongolian elderly had need of 1-2 psychosocial needs. 3. All kinds of psychosocial rehabilitation including the medical, adaptation enhancing and social rehabilitation are equally required for the elderly people.
5.Изониазид Эмийн Шалтгаант Элэгний Архаг Үрэвслийн Эмгэг Загвар Үүсгэсэн Судалгаа
Bayarmaa M ; Sоlongo S ; Byambasuren D ; Tserendagwa D
Journal of Oriental Medicine 2013;8(2):37-41
Судалгааны ажлын зорилго: Изониазид эмийн шалтгаант элэгний архаг
үрэвслийн эмгэг загвар үүсгэх. Сүүлийн жилүүдэд манай орны нийт хүн амын
дунд хоол боловсруулах эрхтэний өвчлөл хоёрдугаарт орж байгаа бөгөөд
эмийн шалтгаант элэгний үрэвсэл нэмэгдэж байна. Мөн халдварт өвчний дунд
сүреэгийн өвчлөл дээгүүр байна. Бид судалгааг туршилтын амьтанд Изониазид
эмээр элэгний үрэвслийн эмгэг загвар үүсгэсэн ба тус бүрт 21 харх байхаар
эрүүл, хяналтын (изониазид 50мг/кг) гэсэн 2 бүлэгт хувааж үзсэн. Шинжилгээнд
биохимийн үзүүлэлт болон эдийн шинжилгээг 7, 14, 21 хоногт хийсэн.
Судалгааны дүнд Изонизид эмийг уулгасан бүлгийн биохимийн шинжилгээнд 7
дах өдөр эрүүл бүлэгтэй харьцуулахад статистикийн ач холбогдол бүхий
ялгаатай байсан. Мөн 21 дэх хоногт элэгний эс задарлын шинж илэрч байгаа
нь статистик ач холбогдолтой дүн гарсан.
8.Understanding about mental illness among population and attitude to patient with mental illness
Khishigsuren Z ; Buyantugs L ; Byambasuren S ; Tsetsegdary G ; Tuya NAI ; Bayarmaa V ; Altanzul N ; Amgalan E ; Nasantsengel L
Mongolian Medical Sciences 2012;159(1):43-48
Introduction. Stigma and discrimination against patients with mental illness is very common amongst the society. Therefore, this study aims to study the knowledge and understanding of mental illness and attitudes to patient with mental illness, among the general population.Goal. To assess the knowledge and understanding of mental illness and attitude to patient with mental illness among population of Ulaanbaatar city and compare its results with a similar research in carried out in 2002.Methods. The study was conducted in Ulaanbaatar city from February to April, 2008 and included 991 people aged over 18 years. The sample was selected from 30 micro districts of Ulaanbaatar city, The method of sampling was using primary dot in first step, sampling households in mid step and selecting people by using method of Sweden key from household in final step. The study used 30 item standardized questionnaires. Also there were 2 extra cards to read for respondents.Result. Among the respondents, 45% were males and 55 % females. Average age was 37 years. In view of identifying negative attitude of patient with schizophrenia, majority of respondents answered as “loony person” (n=136) and “mad person” (n=83). Conclusion. Although there was stigma amongst the study population, 66% of subjects who were involved in study could give right diagnosis in non professional level and were able to identify symptoms of mental illness suggesting that more than half of the sample studied had some knowledge of mental illness.
9.Up-Regulation Of Insulin-LIike Growth Factor-II Receptor In Reavtive Astrocytes In The Spinal Cord Of Amyotrophic Lateral Sclerosis Transgenic Rats
Byambasuren D ; Masashi A ; Hitoshi W ; Naoki S ; Yasuto T
Journal of Oriental Medicine 2013;8(2):71-76
selective motor neuron death. We developed a rat model of ALS expressing a
human cytosolic copper-zinc superoxide dismutase (SOD1) transgene with two
ALS-associated mutations: glycine to alanine at position 93 (G93A) and histidine to
arginine at position 46 (H46R). Although the mechanism of ALS is still unclear, there
are many hypotheses concerning its cause, including loss of neurotrophic support to
motor neurons. Recent evidence suggests that insulin-like growth factors (IGFs) act
as neurotrophic factors, and promote the survival and differentiation of neuronal
cells including motor neurons. Their ability to enhance the outgrowth of spinal motor
neurons suggests their potential as a therapeutic agent for the patients with ALS. In
this study, we investigated IGF-II receptor immunoreactivity in the anterior horns of
the lumbar level of the spinal cord i n SOD1 transgeni c rats with the H46R mutation
of different ages as well as in normal littermates. The double-immunostaining for
IGF-II receptor and glial fibrillary acidic protein (GFAP) demonstrated co-localization
on reactive astrocytes (**p< 0.001) in the endstage transgenic rats, whereas it was
not evident at t he pre-symptomatic stage or at t he onset of the disease. Our results
demonstrated the IGF-II receptor up-regulation in reactive astrocytes in the spinal
cord of transgenic rats, which may reflect a protective response against the loss of
IGF- related trophic factors. We suggest that IGF receptors may play a key role in
the pathogenesis, and may have therapeutic implications in ALS. amyotrophic
lateral sclerosis; insulin-like growth factor; transgenic rat; IGF receptor;
SOD1Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease
cause d by selective motor neuron death. Approximately 10% of cases of ALS are
inherited, usually as an autosomal dominant trait. In ~25% of familial cases, the
disease is caused by mutations in the gene encoding cytosolic copper-zinc
superoxide dismutase (SOD1)(Aoki et al. 1993; Rosen 1993). The overexpression
of mutant human SOD1 in mice is used as model for ALS, however, some
experimental manipulations are difficult in transgenic (Tg) mice because of size
limitations. Thus, we developed a rat model of ALS expressing a human SOD1
transgene with two ALS-associated mutations: glycine to alanine atposition 93
(G93A) and histidine to arginine at position 46 (H46R) (Nagai et al. 2001). Similar to
its murine counter pa rt, the transgenic rats that express human SO D1 transgene
ALS-a ssociated mutations develop striking motor neuron degeneration and
paralysis. Although the m echan ism of AL S is still unclear, there are many
hypotheses concerning its cause of ALS, including loss of neurotrophic support to
motor neurons (Rowland and Shneider 2001). The insulin-like growth factors (IGF-I
and IGF-II) areneurotrophic factors expressed in the central nervous system that
promote the survival and differentiation of neuronal cells includingmotor neurons.
They could be of therapeutic value in human neurodegenerative disorders, including
ALS (Adem et al. 1994; Hawkes and Kar2003; Narai et al. 2005). Evidence that
IGF-I rescues mo to r neurons in vitro and in animals. (Kaspar et al. 2003) has led to
therapeutic trials of human recombinant IGF-I in patients with ALS The biological
actions of the IGFs are mediated through specific cell membrane receptors design
ated as th e IGF-I and I GFII receptors(Sepp-Lorenzino 1998; Hawkes and Kar
2003; Kim et al. 2004). Alterations of the IGF-I and IGF-II binding sites in the spinal
cord of the patients with ALS would support their involvement in the pathology of
ALS (Dore et al. 1996; Chung et al. 2003; Kar et al. 2006). (H46R) mutant Tg rat as
an in vivo model of ALS and performedimmunohistochemical studies to investigate
the changes of the IGF-II receptor in the spinal cord.
10.The utilization of biotinylated RNA baits on captured sequencing of cancer marker genes functional regions
Byambasuren B ; Dulamsuren O ; Lkhagvadorj G ; Amarsanaa E ; Khurelbaatar S ; Shiirevnyamba A ; Batsaikhan B ; Zanabazar E
Mongolian Medical Sciences 2021;198(4):3-14
Background:
Nucleic acid sequencing is a multi-step process taken place in medical research or diagnostic
laboratories. Since the emerge of second generation sequencing technology generally referred as
next generation sequencing (NGS), the mass parallel reads covering human genome or transcriptome
is achieved by cost cut down over thousand folds. Though the technology made tremendous push
forward to various applications, its data analysis time and effort still takes worrisome time and human
effort, bringing the emerge of next-step demand: targeted mass sequencing of only desired part
from human genome or transcriptome with lower material cost and labor. By targeted sequencing,
both run cost and data analysis process can be further cut down, and the read results are more
reliable on changes such as determining varied number of repeats, heterozygote alleles, deletions,
chromosomal scale abnormality and more.
Objective:
In this study, we explored the utilization of biotinylated RNA baits on captured sequencing of cancer
marker genes functional regions.
Method:
Targeted NGS was achieved by capturing desired genomic regions using preparatory nucleic acid
probes. RNA bait capturing of desired genomic regions has shown to have high specificity and quality.
The study was carried out with informed consent obtained from patients, with the approval №53 in
2018.03.15 by Medical Ethics committee, Ministry of Health, Mongolia.
Result:
By preparing library of biotinylated RNA baits with 75000 unique sequences, we achieved mass
parallel sequencing of human 410 cancer-marker-genes’ exons and UTRs with average read depth
~760, and covered thousands of SNPs on 5 genomic DNA samples. Tissue samples derived from
breast cancer and ovary cancer had SNP and deletion on 7 marker genes (BRCA1, BRCA2, ATM, BRIP1, PTEN, TP53, RAD51C) not registered in database.
Conclusion
Experiments showed RNA baits with up to 117 nucleotide length, produced from ssDNA oligonucleotide
stock, can be utilized to capture desired regions of human genome, and bring the cost of captured
mass sequencing to 1500 USD, with 93.14-93.33% of Q30 read quality.