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The distribution of blood genetic markers in immigrant Chinese populations

Hawkins BR

Acta Genet Med Gemellol (Roma), 1973;22:139-66.
PMID: 4790793
Matched MeSH terms: Blood Group Antigens*
Fulltext Genetic and population studies of the blood types and serum factors among Indians and Chinese from Malaya

Steinberg AG, Lai LYC, Vos GH, Singh RB, Lim TW

Am J Hum Genet, 1961 Dec;13:355-71.
PMID: 13916666

The ABO, MN and Rh blood types, and the Hp, Tf, and Gm [Gm (a), Gm (x), Gm(b), and Gm-like] factors were determined for 128 unrelated Indians (parents of families, 63 with two parents tested and two with one parent tested), and 90 unrelated Chinese (parents of 46 families, 44 with two parents tested and two with one parent tested), and for the offspring from these families. The frequencies of the several blood types are presented. They were done primarily to aid in paternity testing. They compare favorably with the findings of previous studies. The allele Hp1 is rare in the Indian population (.09) and relatively infrequent in the Chinese (.29). Unfortunately, the data shed no light on the problem of the inheritance of the phenotype Hp O. Only Tf C was found among the Indians. About four per cent of the Chinese were heterozygous for Tf CD,, all other were Tf CC. The Indians have a high frequency of Gm(a) and of Gm (x), and a low frequency of Gm (b). They appear to have alleles Gma, Gmax, and Gmb in the following frequencies: .535, .234(5), and .230(5), respectively. Three families appear to have a GMxb allele, providing the offspring are not extra-marital. The Chinese appear to have the alleles Gm^ab, Gm^a, and Gm^ax in the following frequencies: .741, .231, and .028, respectively.

Matched MeSH terms: Blood Group Antigens/genetics*
Genetic markers of an aboriginal Taiwanese population

Chen KH, Cann H, Chen TC, Van West B, Cavalli-Sforza L

Am. J. Phys. Anthropol., 1985 Mar;66(3):327-37.
PMID: 3857010

A group of Taiwan aborigines, the Toroko, was typed for 21 classical genetic loci. This is part of an ongoing program aimed at a comprehensive study of Taiwan aborigines. In this first paper a short summary of historical, archeological, and anthropological data in the literature is made, and results of the present survey are compared with older results from other aborigine tribes. An analysis of other neighboring populations from southeast Asia has also been carried out in order to give a preliminary answer to the question of origin of Taiwanese aborigines. Fifteen populations were studied for 13 loci by tree analysis, principal components, and isolation by distance. Tree analysis and principal component analysis gave results in fairly good agreement and indicate three major population clusters: a northeast cluster (Ainu, Korea, Japan, and Ryukyu); a southeast cluster (south China, Thailand, Vietnam, Philippines, Taiwan, and Toroko); and a third cluster including Malaya and Borneo. The positions of Polynesia, Micronesia, and Melanesia are somewhat peripheral. Analysis of the tree shows some potential cases of convergence, perhaps owing to admixture, and of divergence. The analysis of isolation by distance shows that geographic propinquity is a reasonably good predictor of general similarity in this area.

Matched MeSH terms: Blood Group Antigens/genetics
Fulltext Recent Developments in Transplantation and Transfusion Medicine

Edinur HA, Chambers GK, Dunn PP

Ann. Transplant., 2015;20:424-9.
PMID: 26218888 DOI: 10.12659/AOT.894003

Transplantation and transfusion are related and clinically important areas of multidisciplinary expertise, including pre-operative treatment, donor recruitment, tissue matching, and post-operative care. We have seen significant developments in these areas, especially in the late 20th and early 21st century. This paper reviews the latest advances in modern transplantation and transfusion medicine, including several new genetic markers (e.g., major histocompatibility complex class I chain-related gene A, killer cell immunoglobulin-like receptor, and human platelet antigens) for donor and recipient matching, genotyping platforms (e.g., next-generation sequencer and Luminex technology), donor recruitment strategies, and several clinical applications in which genotyping has advantages over agglutination tests (e.g., genotyping of weakly expressed antigens and determination of blood groups and human leukocyte antigen types in multi-transfused patients). We also highlight the roles of population studies and international collaborations in moving towards more efficient donor recruitment strategies.

Matched MeSH terms: Blood Group Antigens
Fulltext Anti-G with concomitant anti-C and anti-D: A case report in a pregnant woman

Yousuf R, Mustafa AN, Ho SL, Tang YL, Leong CF

Asian J Transfus Sci, 2017 3 21;11(1):62-64.
PMID: 28316444 DOI: 10.4103/0973-6247.200770

The G antigen of Rh blood group system is present in almost all D-positive or C-positive red cells but absent from red cells lacking D and C antigens. The differentiation of anti-D and anti-C from anti-G is not necessary for routine transfusion; however, during pregnancy, it is important because anti-G can masquerade as anti-D and anti-C with initial antibody testing. The false presence of anti-D will exclude the patient from receiving anti-D immunoglobulin (RhIG) when the patient actually is a candidate for RhIG prophylaxis. Moreover, patients with positive anti-D or anti-G are at risk of developing hemolytic disease of the fetus and newborn and need close monitoring. Thus, proper identification allows the clinicians to manage patients properly. This case report highlights a rare case of anti-G together with anti-D and anti-C in a pregnant woman. This report disseminates knowledge on identification of anti-G and its importance in pregnant women.

Matched MeSH terms: Blood Group Antigens
Fulltext Association of ABO blood groups with allergic diseases: a scoping review

Dahalan NH, Tuan Din SA, Mohamad SMB

BMJ Open, 2020 02 12;10(2):e029559.
PMID: 32051294 DOI: 10.1136/bmjopen-2019-029559

OBJECTIVE: The objective of this study was to map evidence of the association of ABO blood groups with allergic diseases such as allergic rhinitis (AR), atopic dermatitis (AD) and asthma.
DESIGN: A scoping review.
DATA SOURCES: PubMed, Scopus, Direct Open Access Journal, Medline, Cumulative Index to Nursing and Allied Health Literature, ScienceDirect and SpringerLink were searched from October 2017 until May 2018.
ELIGIBILITY CRITERIA FOR SELECTING STUDIES: We selected all types of studies including case-control studies, prospective or retrospective cohort studies, cross-sectional studies and experimental studies, and we included reviews such as literature reviews, systematic reviews with or without meta-analysis and scoping reviews that were published in English and associated the ABO blood group with the three allergic diseases (asthma, AR and AD) in humans of all age groups.
DATA EXTRACTION AND SYNTHESIS: Two reviewers independently screened the titles and abstracts and assessed the full-text articles of the abstracts that met the eligibility requirements. Data from the included studies were extracted, evaluated and reported in the form of narrative synthesis.
RESULTS: Of the 10 246 retrieved titles, only 14 articles were selected for a scoping review based on the eligibility criteria. The majority of the studies demonstrated a significant association between ABO blood groups and allergic diseases. We found that blood group O is prominent in patients with AR and asthma, while a non-O blood group is common in patients with AD.
CONCLUSION: This scoping review serves as preliminary evidence for the association of ABO blood groups with allergic diseases. Further studies need to be conducted so that the relationship between ABO blood groups and allergic diseases can be fully established. This could be helpful for clinicians and health professionals in consulting and managing patients who suffer from allergic diseases in the future.

Matched MeSH terms: Blood Group Antigens
The genetic history of Peninsular Malaysia

Norhalifah HK, Syaza FH, Chambers GK, Edinur HA

Gene, 2016 Jul 15;586(1):129-35.
PMID: 27060406 DOI: 10.1016/j.gene.2016.04.008

This article explores the genetic history of the various sub-populations currently living in Peninsular Malaysia. This region has received multiple waves of migrants like the Orang Asli in prehistoric times and the Chinese, Indians, Europeans and Arabs during historic times. There are three highly distinct lineages that make up the Orang Asli; Semang, Senoi and Proto-Malays. The Semang, who have 'Negrito' characteristics, represent the first human settlers in Peninsular Malaysia arriving from about 50,000ya. The Senoi later migrated from Indochina and are a mix between an Asian Neolithic population and the Semang. These Asian genomes probably came in before Austroasiatic languages arrived between 5000 and 4000years ago. Semang and Senoi both now speak Austro-Asiatic languages indicative of cultural diffusion from Senoi to Semang. In contrast, the Proto-Malays who came last to the southern part of this region speak Austronesian language and are Austronesians with some Negrito admixture. It is from this group that the contemporary Malays emerged. Here we provide an overview of the best available genetic evidences (single nucleotide polymorphisms, mitochondrial DNA, Y-chromosome, blood groups, human platelet antigen, human leukocyte antigen, human neutrophil antigen and killer-cell immunoglobulin-like receptor) supporting the complex genetic history of Peninsular Malaysia. Large scale sampling and high throughput genetic screening programmes such as those using genome-wide single nucleotide polymorphism analyses have provided insights into various ancestral and admixture genetic fractions in this region. Given the now extensive admixture present in the contemporary descendants of ancient sub-populations in Peninsular Malaysia, improved reconstruction of human migration history in this region will require new evidence from ancient DNA in well-preserved skeletons. All other aspects of the highly diverse and complex genetic makeup in Peninsular Malaysia should be considered carefully for genetic mapping of disease loci and policy formation by health authorities.

Matched MeSH terms: Blood Group Antigens
Fulltext Coagulation Factor Activities Changes Over 5 Days in Thawed Fresh Frozen Plasma Stored at Different Initial Storage Temperatures

Noordin SS, Karim FA, Mohammad WMZBW, Hussein AR

Indian J Hematol Blood Transfus, 2018 Jul;34(3):510-516.
PMID: 30127563 DOI: 10.1007/s12288-017-0879-8

Thawed plasma is fresh frozen plasma (FFP) that has been stored for 5 days at 1-6 °C. Duration of storage and different storage temperatures might affect the coagulation factor activity in thawed FFP. This study measured the changes of coagulation factor activities over 5 days in thawed FFP and stored at two different initial storage temperatures. Thirty-six units of FFP, which consisted of nine units each from blood groups A, B, AB, and O, were thawed at 37 °C. Each unit was divided into two separate groups (Group A and Group B) based on initial storage temperature. The first group was stored at 2-6 °C for 5 days (Group A). The second group was stored at 20-24 °C for initial 6 h followed by 2-6 °C for 5 days (Group B). Prothrombin time (PT), activated partial thromboplastin time (APTT), coagulation factor activities of fibrinogen, factor (F) II, FV, FVII, FVIII, FIX, FX, and von Willebrand factor antigen (vWF Ag) were assessed at baseline after thawing, at 6 h, and on days 1, 3, and 5 of storage for both groups. All coagulation factors mean activities in both storage groups decreased significantly over 5 days of storage. The mean FVIII activity at day 5 of storage was 36.9% in Group A and 39.8% in Group B. The other coagulation factors mean activities were > 50% on day 5 of storage in both groups. The coagulation factor activities of thawed FFP stored for 5 consecutive days were reduced in the two storage groups but most of the activities were still above 30%. This study suggests that thawed FFP stored for 5 days has the potential to ameliorate coagulation factor deficiencies in affected patients.

Matched MeSH terms: Blood Group Antigens
Fulltext Detection of glycoproteins from human erythrocytes of different ABO blood groups infected with Plasmodium falciparum

Chin, Ramon Beng Ong, Kim, Patricia Chooi Lim, Joon, Wah Mak

International e-Journal of Science, Medicine & Education, 2011;5(2):18-28.
MyJurnal

Background: Many proteins released by cells to the blood and other fluids are glycoproteins. One set of glycoproteins carry the ABO blood group determinants and glycoproteins have been shown to be vital in determining the structure and organization of plasma membranes. There is evidence suggesting their important role in cell-to-cell contact, adhesion, hormone interaction and vital transformation. Differences in proteins and glycoproteins in the different human blood groups may influence the invasion process of Plasmodium falciparum. The objectives of the study were to determine whether there are any changes in proteins and glycoproteins of red blood cells upon infection by P. falciparum and whether these protein and glycoprotein changes differ in the various ABO blood groups.

Methods: A Malaysian strain of P. falciparum was cultured in vitro in red blood cells from A, B, O and AB blood groups. Protein and glycoprotein profiles of uninfected and P. falciparum- infected red blood cells from the different human ABO blood groups were analyzed by SDS-PAGE. For protein bands, the gels were stained with Coomassie blue while glycoproteins were visualized following staining of gels using GelCode ® Glycoprotein Staining Kit.

Results: Cell membranes of P. falciparum infected erythrocytes from different ABO blood groups have different glycoprotein profiles compared to uninfected cells. All the infected samples showed a prominent protein band of molecular weight 99 kDa which was not present in any of the uninfected samples while a 48 kDa band was seen in four out of the seven infected samples. The erythrocyte cell membranes of A and AB blood groups showed different glycoprotein profiles upon infection with P. falciparum when compared to those from blood groups B and O.

Conclusion: The two glycoproteins of molecular weights 99 kDa and 48 kDa should be further studied to determine their roles in the pathogenesis of malaria and as potential targets for drug and vaccine development.

Matched MeSH terms: Blood Group Antigens
Immunogenetic aspects of nasopharyngeal carcinoma. II. Analysis of ABO, rhesus and MNSs red cell systems

Hawkins BR, Simons MJ, Goh EH, Chia KB, Shanmugaratnam K

Int J Cancer, 1974 Jan 15;13(1):116-21.
PMID: 4206461 DOI: 10.1002/ijc.2910130113
Matched MeSH terms: Blood Group Antigens*
Fulltext Genetic association in myocardial infarction. Ethnicity; ABO, Rh, Le, Xg blood groups; G6PD deficiency; and abnormal haemoglobins

Saha N, Toh CC, Ghosh MB

J Med Genet, 1973 Dec;10(4):340-5.
PMID: 4204387
Matched MeSH terms: Blood Group Antigens*
Blood group in relation to oral Fordyce's granules and serum cholesterol level

Diajil AR, Goodson ML

J Oral Pathol Med, 2023 Jul;52(6):521-527.
PMID: 37038041 DOI: 10.1111/jop.13432

BACKGROUND: The ABO and Rh systems are the most commonly used blood-group systems used to classify blood group globally. A number of studies have shown that ABO blood groups may be associated with an increased serum cholesterol levels which in turn may be related to the presence of oral Fordyce spots or granules. Oral Fordyce's granules are ectopic sebaceous glands within the oral cavity and are visible through epithelium. The aim of this study was to assess the relationship between ABO and Rhesus blood groups and the presence of oral Fordyce's granules and serum cholesterols level by gender.
METHODS: Following ethical approval and informed consent, 124 subjects were recruited into this cross-sectional study. Clinical oral examination assessed the number of Fordyce's granules and blood samples were collected to determine the serum cholesterol and ABO/Rh blood-group systems of individual subjects.
RESULTS: Blood group AB+ showed the highest mean of oral Fordyce's granules number and serum cholesterol level but this was not statistically significant compared to other blood groups. Female subjects in this study who were AB+ were had significantly higher serum cholesterol levels than males.
CONCLUSION: This study indicates an association between ABO blood group, serum cholesterol level and mean number of oral Fordyce's granules. A larger sample size in a future study is required to ascertain whether number of Fordyce's granules is an important measure of serum cholesterol, but the study does show that for AB+ individuals, females may have higher serum cholesterol than males.

Matched MeSH terms: Blood Group Antigens*
Studies of blood groups in South-East Asia

Polunin I, Sneah PHA

Journal of the Anthropological Institute of Great Britain and Ireland, 1953;83:215-251.

Matched MeSH terms: Blood Group Antigens
Fulltext A review on development of blood substitute

Mislia Othman, Muhammad Azrul Zabidi

Jurnal Sains Kesihatan Malaysia, 2020;18(2):59-71.
MyJurnal

This review paper aims to present an overview of the development of blood substitute particularly red blood cell substitute or artificial oxygen carrier. Knowledge on human blood inspired from the understanding of human blood circulation system. Ibn Nafis was first to describe that blood flow through respiratory system before entering the heart. This finding denied the claim that tiny pores present within the septum of the heart. Then, William Harvey further described human cardiovascular system in detail and contributed to better understanding on the roles of blood in body. Several blood transfusions were attempted using blood collected from human, animal and other blood substitutes such as milk before the practice was banned for almost 150 years in Europe. Major discoveries on blood group and antibody reaction have made blood transfusion safer. However, several issues and challenges have re-triggered the exploration to develop red cell substitutes. Two approaches have been taken to develop the red blood cell substitute which are classified into biological and chemical based oxygen carriers. The earliest efforts have been on haemoglobin based oxygen carrier (HBOC) and perfluorocarbon (PFC) while the recent developement are on polymer-based oxygen carrier and in-vitro stem cell derived red blood cell.

Matched MeSH terms: Blood Group Antigens
Fulltext Absence of 1061C deletion in A2 blood subgroup validated through gene sequencing in the Malaysian population

Anbukarsu, Aruna, Mohd Nazif Samat @ Darawi and Mohd Nazil Salleh

Life Sciences, Medicine and Biomedicine, 2019;3(1):1-6.
MyJurnal

ABO blood grouping is an important antigenic blood typing tools in blood transfusion and organ transplants. Mismatching of blood during transfusion would lead to undesired transfusion reactions. Due to rare occurrence of rare blood group such as A2 subtype, regular blood grouping technique would have missed the identification of blood group. Objectives: In this study, the identification of A2 subgroup using routine serological technique was validated via DNA sequencing technique. Materials and Methods: A total of 656 students participated in this study consist of Malay (87.0 %), Chinese (0.4 %), Indian (11.4 %) and others ethnic group (0.9%) respectively. Monoclonal antisera A, B, AB, D, A1 lectin and H lectin were used to identify the antigen on red blood cells. DNA sequence analysis was applied to examine single nucleotide polymorphisms (SNPs) at position 467 (substitution of C>T) and 1061 (deletion of C) on coding region of ABO gene. Results: Our findings showed of 656 blood samples, 256 (39.0%) were blood group O, 190 (29.0%) were blood group B, 179 (27.3%) were blood group A and 31(4.7%) were blood group AB. The frequency of A1 subgroup is 177 (99.0%) and A2 subgroup is 2 (1.0%). From 179 A blood group, only 2 samples showed negative reaction towards anti-A1 lectin. DNA sequence analysis revealed the SNPs at nucleotide 1061 position in sample 2, however this mutation was absence in sample 1, suggesting presence of another mutation that may result in the A2 phenotype. Conclusion: The current study reported the absence of 1061C deletion in A2 blood group sample among Malaysian population.

Matched MeSH terms: Blood Group Antigens
Fulltext Effect of hanging white bedsheet around phototherapy unit on TSB level in neonatal jaundice: a comparative study

Chong Li Tsu, Shalin Lee Wan Fei, Chan Kim Geok, Saloma Pawi, Feryante Rintika, Drina Dalie

Malaysian Journal of Medicine and Health Sciences, 2020;16(105):22-0.
MyJurnal

Introduction: Phototherapy is the primary treatment for neonatal jaundice and is evaluated via total serum bilirubin (TSB) level. Hanging white material around phototherapy unit can multiply energy delivery by many folds. This study is to evaluate the effect of hanging white bedsheet around phototherapy unit on the reduction of TSB level. Methods: Comparative interventional study was conducted in two public hospitals. 200 eligible neonates with hyperbiliru- binemia were recruited and assigned to intervention (n=100) and control group (n=100). Neonates assigned into intervention group were nursed under phototherapy with the addition of white bedsheet hanging around the unit while the control group were nursed under phototherapy with non-white curtains. Results: Mothers’ blood group (x = 3.75, p = .29), neonates’ blood group (x = 2.87, p = .41), birth weight (t = 1.41, p = .16), baseline total serum bilirubin (TSB) level (p = .08), baseline irradiance of phototherapy prior to the hanging of curtains (p = .13) and hours of phototherapy (p = .53). The mean for TSB level in intervention and control group at 24 hours was 235.82µmol/L and 208.67µmol/L respectively. The mean difference in TSB level between intervention and control group was sta- tistically significant at 24 hours (x = 27.15, t = 4.56, p < .001) and 48 hours (x = 19.27, t = 2.32, p = .02) after initi- ation of phototherapy. Conclusion: The baseline and demographic characteristics of the neonates and mothers were comparable between the intervention and control group. The TSB level at 24 hours and 48 hours were significantly lower in control group if compared to the intervention group. Therefore, hanging white bedsheet did not significantly hasten the reduction of TSB level when compared to ordinary non-white curtains.

Matched MeSH terms: Blood Group Antigens
Fulltext Knowledge, attitude, and practice of voluntary blood donation among the nursing students of Universiti Malaysia Sabah

M Tanveer Hossain Parash, Sadia Choudhury Shimmi, ABM Tofazzal Hossain

Malaysian Journal of Medicine and Health Sciences, 2020;16(105):64-0.
MyJurnal

Introduction: The healthy, active, and receptive huge student population is potential blood donors to meet safe blood requirements. The study aimed to assess the current level of knowledge regarding blood donation of nursing students of the Faculty of Medicine & Health Sciences, UMS and to observe their attitude towards voluntary blood donation and to explore their practice as a voluntary blood donor. Methods: This cross-sectional study was con- ducted from July 2015 to June 2018 among one hundred and eight (108) nursing students who were included in this study by simple random sampling. The researchers explained the study design, objectives, and methodology to the selected subjects and obtained written consent from them. The study assessed the current level of knowledge and observed their attitude towards voluntary blood donation and explored their active involvement in donating blood through a validated questionnaire. Results: There were 89 female and 19 male participants in the study. Almost ev- ery student (96%) knew their blood group and most of them were correct about the health status of a blood donor. They had a lack of knowledge regarding the time required for blood donation and the amount of blood collected in each bag. Although most of the students were very favourable to donate blood, only 34% had previous experience of donating blood out of them; only 6% regularly donated voluntarily and on demand. Conclusion: From this finding, it can be recommended that measures for increasing knowledge regarding blood donation should be taken, and that would result in increased blood donation.

Matched MeSH terms: Blood Group Antigens
Fulltext NS1 dengue antigen among blood donors in two blood collection centers in north Malaysia

Mohd Faizal Mohamed Yusuf, Hafizuddin Mohamed Fauzi, Siti Salmah Noordin, Narazah Mohd Yusoff

Malaysian Journal of Medicine and Health Sciences, 2018;14(201):1-6.
MyJurnal

Dengue virus is one of the emerging agents that can be transmitted via blood transfusion from infected blood donors to recipients. In Malaysia, the increase in dengue infection may contribute to the existence of asymptomatic blood donors and increase the risk of blood supply contaminated with this virus. The aims of this study were to investigate the prevalence of NS1 dengue antigen among blood donors and to ascertain the demographic data of blood donors in Penang and and Perak. Methods: A total of 374 voluntary blood donors were recruited from two blood donation campaigns organised by Hospital Pulau Pinang, Penang and Hospital Raja Permaisuri Bainun, Ipoh, Perak from April to May 2016. From each centre, 187 voluntary blood donors were enrolled, blood was collected and Dengue NS1 Ag was screened on all the samples using Platelia dengue antigen test kit from Bio-Rad Laboratories, France. Results: All 374 samples were found to be negative for the Dengue NS1 antigen. Demographic data of these blood donors showed that the most common blood group was O Rh positive, men donated more than women and Chinese blood donors were the biggest group of donors. Conclusion: Even though dengue is endemic in Malaysia, none of the blood donors was screened positive for dengue NS1 antigen in the areas studied. This indicates that none of the blood donor at the time of donation was in viraemia stage. The established donor screening program ensures that the dengue transmission through transfusion is minimal in the areas studied.

Matched MeSH terms: Blood Group Antigens
Fulltext Ethanolic Extract of Polygonum minus Protects Differentiated Human Neuroblastoma Cells (SH-SY5Y) against H2O2-Induced Oxidative Stress

Sayuti NH, Zulkefli N, Tan JK, Saad N, Baharum SN, Hamezah HS, et al.

Molecules, 2023 Sep 20;28(18).
PMID: 37764502 DOI: 10.3390/molecules28186726

Neuronal models are an important tool in neuroscientific research. Hydrogen peroxide (H2O2), a major risk factor of neuronal oxidative stress, initiates a cascade of neuronal cell death. Polygonum minus Huds, known as 'kesum', is widely used in traditional medicine. P. minus has been reported to exhibit a few medicinal and pharmacological properties. The current study aimed to investigate the neuroprotective effects of P. minus ethanolic extract (PMEE) on H2O2-induced neurotoxicity in SH-SY5Y cells. LC-MS/MS revealed the presence of 28 metabolites in PMEE. Our study showed that the PMEE provided neuroprotection against H2O2-induced oxidative stress by activating the Nrf2/ARE, NF-κB/IκB and MAPK signaling pathways in PMEE pre-treated differentiated SH-SY5Y cells. Meanwhile, the acetylcholine (ACH) level was increased in the oxidative stress-induced treatment group after 4 h of exposure with H2O2. Molecular docking results with acetylcholinesterase (AChE) depicted that quercitrin showed the highest docking score at -9.5 kcal/mol followed by aloe-emodin, afzelin, and citreorosein at -9.4, -9.3 and -9.0 kcal/mol, respectively, compared to the other PMEE's identified compounds, which show lower docking scores. The results indicate that PMEE has neuroprotective effects on SH-SY5Y neuroblastoma cells in vitro. In conclusion, PMEE may aid in reducing oxidative stress as a preventative therapy for neurodegenerative diseases.

Matched MeSH terms: Blood Group Antigens*
Haemoglobin E and the Diego blood group antigen in Sarawak and Burma

COLBOURNE MJ, IKIN EW, MOURANT AE, LEHMANN H, THEIN H

Nature, 1958 Jan 11;181(4602):119-20.
PMID: 13493616
Matched MeSH terms: Blood Group Antigens*

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