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Artikel ; Online: HLA-G isoforms, HLA-C allotype and their expressions differ between early abortus and placenta in relation to spontaneous abortions.

Bora, Mayuri / Singha, Sushmita / Madan, Taruna / Deka, Gitanjali / Hazarika, Sumita Gogoi / Baruah, Shashi

2024 Band 149, Seite(n) 44–53

Abstract: Introduction: Spontaneous abortion (SAB) affects approximately 10% of clinically recognized pregnancies. Fetal trophobalst invasion and remodeling of maternal spiral arteries is reported to be dependent on crosstalk between HLA-C/HLA-G expressed on ... ...

Abstract	Introduction: Spontaneous abortion (SAB) affects approximately 10% of clinically recognized pregnancies. Fetal trophobalst invasion and remodeling of maternal spiral arteries is reported to be dependent on crosstalk between HLA-C/HLA-G expressed on extra villous trophoblast (EVTs)and Killer cell Immunoglobin like receptors (KIRs) of decidual NK (dNK). Immune dysfunction in decidua contributes to early miscarriage. Methodology: The study used mother neonate paired cord blood and term placenta samples (n = 46), elective abortus (n = 17,gestational age = 10-12 weeks of pregnancy) and SAB abortus (n = 24, gestational age = 12-15 weeks of pregnancy) for HLA-G, KIR2D and HLA-C. In addition, term placenta was collected from women with history of spontaneous pregnancy loss (n = 24) and women with history of live birth (n = 32). SSP-PCR was used for genotyping, RT-PCR for gene expression, copy number variation (CNVs) and HLA-C allotyping and ELISA for protein expression studies. Results: Membrane bound HLA-G4 isoform proportion was higher 39.28%, p = 0.02) in term placenta. SAB abortus had higher proportion of HLA-G3 (50%),while elective abortus exhibited higher proportion of soluble isoforms (HLA-G5, = 5.9, HLA-G6 = 5.9%, HLA-G7 = 11.8%). Higher inhibitory KIR2DL1 content and copy numbers with lower HLA-C2 in SAB contrasted with higher copy numbers of KIR2DS1(p = 0.001), KIR2DS1 Conclusion: Our data supports lower cognate receptor ligand KIR2DS1+/2DL1+ HLA-C2 together with predominance of HLA-G3 isoform in SAB as confounding factors in spontaneous pregnancy loss. HLA-G isoforms and expression differed between first trimester abortus and term placenta suggesting temporal modulation and marks novelty of the study.
Mesh-Begriff(e)	Female ; Humans ; Infant ; Infant, Newborn ; Pregnancy ; Abortion, Spontaneous/genetics ; Abortion, Spontaneous/metabolism ; Decidua/metabolism ; DNA Copy Number Variations ; HLA-C Antigens/genetics ; HLA-G Antigens/genetics ; HLA-G Antigens/metabolism ; Killer Cells, Natural ; Placenta/metabolism ; Protein Isoforms/genetics ; Protein Isoforms/metabolism ; Trophoblasts/metabolism
Chemische Substanzen	HLA-C Antigens ; HLA-G Antigens ; Protein Isoforms
Sprache	Englisch
Erscheinungsdatum	2024-03-11
Erscheinungsland	Netherlands
Dokumenttyp	Journal Article
ZDB-ID	603951-0
ISSN	1532-3102 ; 0143-4004
ISSN (online)	1532-3102
ISSN	0143-4004
DOI	10.1016/j.placenta.2024.02.009
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: A comparative study on regulation of HLA-G expression in bad obstetric history and in head and neck squamous cell carcinoma from Northeast India.

Bora, Mayuri / Sarmah, Neelanjana / Das, Bhaswatee / Narayan Baruah, Munindra / Deka, Gitanjali / Gogoi Hazarika, Sumita / Baruah, Shashi

Human immunology

2022 Band 83, Heft 5, Seite(n) 453–457

Abstract: The expression of immunomodulatory molecule HLA-G is tissue restricted with abundant expression in placenta, mediating immune tolerance to fetus. Tumors hijack HLA-G to establish nutrient supply and evade host immune response. 14 base pair Insertion/ ... ...

Abstract	The expression of immunomodulatory molecule HLA-G is tissue restricted with abundant expression in placenta, mediating immune tolerance to fetus. Tumors hijack HLA-G to establish nutrient supply and evade host immune response. 14 base pair Insertion/Deletion polymorphism (rs371194629) and + 3142 G/C SNP (rs1063320) of 3'UTR of HLA-G were investigated in conjunction with miR-148A, miR-152 and HLA-G expression in SAB (Spontaneous abortion) history placenta and HNSCC tumor in a hospital-based case control study. Higher frequency of G allele of rs1063320 was seen in study participants as reported in other global populations. Both miR-148A and miR-152 were downregulated in tumor tissue. Predominance of 14 base pair "IN" allele of rs371194629 was noted in SAB placental tissue (p =<0.0001) with lower expression of HLA-G levels. In conclusion, 14 base pair Insertion/Deletion in linkage with + 3142 G/C SNP was related to lower HLA-G protein expression in SAB tissue, contradictorily HLA-G protein level was manipulated by tumors by suppressing microRNAs.
Mesh-Begriff(e)	3' Untranslated Regions ; Abortion, Spontaneous/genetics ; Case-Control Studies ; Female ; HLA-G Antigens/genetics ; Head and Neck Neoplasms ; Humans ; India ; MicroRNAs/genetics ; Placenta ; Pregnancy ; Squamous Cell Carcinoma of Head and Neck
Chemische Substanzen	3' Untranslated Regions ; HLA-G Antigens ; MIRN152 microRNA, human ; MicroRNAs
Sprache	Englisch
Erscheinungsdatum	2022-03-02
Erscheinungsland	United States
Dokumenttyp	Journal Article
ZDB-ID	801524-7
ISSN	1879-1166 ; 0198-8859
ISSN (online)	1879-1166
ISSN	0198-8859
DOI	10.1016/j.humimm.2022.02.006
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Maternal and fetal factors associated with stillbirth in singleton pregnancies in 13 hospitals across six states in India: A prospective cohort study.

Boo, Yebeen Ysabelle / Bora, Amrit K / Chhabra, Shakuntala / Choudhury, Saswati S / Deka, Gitanjali / Kakoty, Swapna / Kumar, Pramod / Mahanta, Pranabika / Minz, Bina / Rani, Anjali / Rao, Sereesha / Roy, Indrani / Solomi V, Carolin / Verma, Ashok / Zahir, Farzana / Deka, Rupanjali / Kurinczuk, Jennifer J / Nair, Manisha

International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics

2024 Band 165, Heft 2, Seite(n) 462–473

Abstract: Objective: This study aimed to investigate the incidence of and risk factors for stillbirth in an Indian population.: Methods: We conducted a secondary data analysis of a hospital-based cohort from the Maternal and Perinatal Health Research ... ...

Abstract	Objective: This study aimed to investigate the incidence of and risk factors for stillbirth in an Indian population. Methods: We conducted a secondary data analysis of a hospital-based cohort from the Maternal and Perinatal Health Research collaboration, India (MaatHRI), including pregnant women who gave birth between October 2018-September 2023. Data from 9823 singleton pregnancies recruited from 13 hospitals across six Indian states were included. Univariable and multivariable Poisson regression analysis were performed to examine the relationship between stillbirth and potential risk factors. Model prediction was assessed using the area under the receiver-operating characteristic (AUROC) curve. Results: There were 216 stillbirths (48 antepartum and 168 intrapartum) in the study population, representing an overall stillbirth rate of 22.0 per 1000 total births (95% confidence interval [CI]: 19.2-25.1). Modifiable risk factors for stillbirth were: receiving less than four antenatal check-ups (adjusted relative risk [aRR]: 1.75, 95% CI: 1.25-2.47), not taking any iron and folic acid supplementation during pregnancy (aRR: 7.23, 95% CI: 2.12-45.33) and having severe anemia in the third trimester (aRR: 3.37, 95% CI: 1.97-6.11). Having pregnancy/fetal complications such as hypertensive disorders of pregnancy (aRR: 1.59, 95% CI: 1.03-2.36), preterm birth (aRR: 4.41, 95% CI: 3.21-6.08) and birth weight below the 10th percentile for gestational age (aRR: 1.35, 95% CI: 1.02-1.79) were also associated with an increased risk of stillbirth. Identified risk factors explained 78.2% (95% CI: 75.0%-81.4%) of the risk of stillbirth in the population. Conclusion: Addressing potentially modifiable antenatal factors could reduce the risk of stillbirths in India.
Mesh-Begriff(e)	Pregnancy ; Female ; Infant, Newborn ; Humans ; Stillbirth/epidemiology ; Prospective Studies ; Premature Birth/epidemiology ; Risk Factors ; Pregnancy Complications/epidemiology ; Hospitals
Sprache	Englisch
Erscheinungsdatum	2024-01-17
Erscheinungsland	United States
Dokumenttyp	Journal Article
ZDB-ID	80149-5
ISSN	1879-3479 ; 0020-7292
ISSN (online)	1879-3479
ISSN	0020-7292
DOI	10.1002/ijgo.15367
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Risk factors for labour induction and augmentation: a multicentre prospective cohort study in India.

The Lancet regional health. Southeast Asia

2024 Band 25, Seite(n) 100417

Abstract: Background: Guidelines for labour induction/augmentation involve evaluating maternal and fetal complications, and allowing informed decisions from pregnant women. This study aimed to comprehensively explore clinical and non-clinical factors influencing ... ...

Abstract	Background: Guidelines for labour induction/augmentation involve evaluating maternal and fetal complications, and allowing informed decisions from pregnant women. This study aimed to comprehensively explore clinical and non-clinical factors influencing labour induction and augmentation in an Indian population. Methods: A prospective cohort study included 9305 pregnant women from 13 hospitals across India. Self-reported maternal socio-demographic and lifestyle factors, and maternal medical and obstetric histories from medical records were obtained at recruitment (≥28 weeks of gestation), and women were followed up within 48 h after childbirth. Maternal and fetal clinical information were classified based on guidelines into four groups of clinical factors: (i) ≥2 indications, (ii) one indication, (iii) no indication and (iv) contraindication. Associations of clinical and non-clinical factors (socio-demographic, healthcare utilisation and lifestyle related) with labour induction and augmentation were investigated using multivariable logistic regression analyses. Findings: Over two-fifths (n = 3936, 42.3%, 95% confidence interval [CI] 41.3-43.3%) of the study population experienced labour induction and more than a quarter (n = 2537, 27.3%, 95% CI 26.4-28.2%) experienced augmentation. Compared with women with ≥2 indications, those with one (adjusted odds ratio [aOR] 0.50, 95% CI 0.42-0.58) or no indication (aOR 0.24, 95% CI 0.20-0.28) or with contraindications (aOR 0.12, 95% CI 0.07-0.20) were less likely to be induced, adjusting for non-clinical characteristics. These associations were similar for labour augmentation. Notably, 34% of women who were induced or augmented did not have any clinical indication. Several maternal demographic (age at labour, parity and body mass index in early pregnancy), healthcare utilization (number of antenatal check-ups, duration of iron-folic acid supplementation and individuals managing childbirth) and socio-economic factors (religion, living below poverty line, maternal education and partner's occupation) were independently associated with labour induction and augmentation. Interpretation: Although decisions about induction and augmentation of labour in our study population in India were largely guided by clinical recommendations, we cannot ignore that more than a third of the women did not have an indication. Decisions could also be influenced by non-clinical factors which need further research. Funding: The MaatHRI platform is funded by a Medical Research Council Career Development Award (Grant Ref: MR/P022030/1) and a Transition Support Award (Grant Ref: MR/W029294/1).
Sprache	Englisch
Erscheinungsdatum	2024-05-07
Erscheinungsland	England
Dokumenttyp	Journal Article
ISSN	2772-3682
ISSN (online)	2772-3682
DOI	10.1016/j.lansea.2024.100417
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: The complex relationship between iron status and anemia in pregnant and postpartum women in India: Analysis of two Indian study cohorts of uncomplicated pregnancies.

Nair, Manisha / Choudhury, Saswati S / Rani, Anjali / Solomi, Carolin / Kakoty, Swapna D / Medhi, Robin / Rao, Sereesha / Mahanta, Pranabika / Zahir, Farzana / Roy, Indrani / Chhabra, Shakuntala / Deka, Gitanjali / Minz, Bina / Deka, Rupanjali / Opondo, Charles / Churchill, David / Lakhal-Littleton, Samira / Nemeth, Elizabeta

American journal of hematology

2023 Band 98, Heft 11, Seite(n) 1721–1731

Abstract: Low hemoglobin is widely used as an indicator of iron deficiency anemia in India and other low-and-middle income counties, but anemia need not accurately reflect iron deficiency. We examined the relationship between hemoglobin and biomarkers of iron ... ...

Abstract	Low hemoglobin is widely used as an indicator of iron deficiency anemia in India and other low-and-middle income counties, but anemia need not accurately reflect iron deficiency. We examined the relationship between hemoglobin and biomarkers of iron status in antenatal and postnatal period. Secondary analysis of uncomplicated singleton pregnancies in two Indian study cohorts: 1132 antenatal women in third trimester and 837 postnatal women 12-72 h after childbirth. Associations of hemoglobin with ferritin in both data sets, and with sTfR, TSAT, and hepcidin in the postnatal cohort were examined using multivariable linear regression. Multinomial logistic regression was used to examine the association between severity of anemia and iron status. Regression models were adjusted for potential confounders. Over 55% of the women were anemic; 34% of antenatal and 40% of postnatal women had low ferritin, but 4% antenatal and 6% postnatal women had high ferritin. No evidence of association between hemoglobin and ferritin was observed (antenatal: adjusted coefficient [aCoef] -0.0004, 95% confidence interval [CI] -0.001, 0.001; postnatal: aCoef -0.0001, 95% CI -0.001, 0.001). We found a significant linear association of hemoglobin with sTfR (aCoef -0.04, 95% CI -0.07, -0.01), TSAT (aCoef -0.005, 95% CI -0.008, -0.002), and hepcidin (aCoef 0.02, 95% CI 0.02, 0.03) in postnatal women. Likelihood of low ferritin was more common in anemic than non-anemic women, but high ferritin was also more common in women with severe anemia in both cohorts. Causes of anemia in pregnant and postpartum women in India are multifactorial; low hemoglobin alone is not be a useful marker of iron deficiency.
Mesh-Begriff(e)	Female ; Humans ; Pregnancy ; Iron ; Hepcidins ; Anemia/epidemiology ; Anemia/complications ; Anemia, Iron-Deficiency/etiology ; Ferritins ; Iron Deficiencies ; Postpartum Period ; Hemoglobins/analysis
Chemische Substanzen	Iron (E1UOL152H7) ; Hepcidins ; Ferritins (9007-73-2) ; Hemoglobins
Sprache	Englisch
Erscheinungsdatum	2023-08-31
Erscheinungsland	United States
Dokumenttyp	Journal Article
ZDB-ID	196767-8
ISSN	1096-8652 ; 0361-8609
ISSN (online)	1096-8652
ISSN	0361-8609
DOI	10.1002/ajh.27059
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Relationship between anaemia, coagulation parameters during pregnancy and postpartum haemorrhage at childbirth: a prospective cohort study.

Nair, Manisha / Chhabra, Shakuntala / Choudhury, Saswati Sanyal / Deka, Dipika / Deka, Gitanjali / Kakoty, Swapna D / Kumar, Pramod / Mahanta, Pranabika / Medhi, Robin / Rani, Anjali / Rao, Seeresha / Roy, Indrani / Solomi V, Carolin / Talukdar, Ratna Kanta / Zahir, Farzana / Kansal, Nimmi / Arora, Anil / Opondo, Charles / Armitage, Jane /

Laffan, Michael / Stanworth, Simon / Quigley, Maria / Baigent, Colin / Knight, Marian / Kurinczuk, Jennifer J

BMJ open

2021 Band 11, Heft 10, Seite(n) e050815

Abstract: Objectives: To investigate the association between coagulation parameters and severity of anaemia (moderate anaemia: haemoglobin (Hb) 7-9.9 g/dL and severe anaemia: Hb <7 g/dL) during pregnancy and relate these to postpartum haemorrhage (PPH) at ... ...

Abstract	Objectives: To investigate the association between coagulation parameters and severity of anaemia (moderate anaemia: haemoglobin (Hb) 7-9.9 g/dL and severe anaemia: Hb <7 g/dL) during pregnancy and relate these to postpartum haemorrhage (PPH) at childbirth. Design: A prospective cohort study of pregnant women recruited in the third trimester and followed-up after childbirth. Setting: Ten hospitals across four states in India. Participants: 1342 pregnant women. Intervention: Not applicable. Methods: Hb and coagulation parameters: fibrinogen, D-dimer, D-dimer/fibrinogen ratio, platelets and international normalised ratio (INR) were measured at baseline. Participants were followed-up to measure blood loss within 2 hours after childbirth and PPH was defined based on blood loss and clinical assessment. Associations between coagulation parameters, Hb, anaemia and PPH were examined using multivariable logistic regression models. Outcomes measures: Adjusted OR with 95% CI. Results: In women with severe anaemia during the third trimester, the D-dimer was 27% higher, mean fibrinogen 117 mg/dL lower, D-dimer/fibrinogen ratio 69% higher and INR 12% higher compared with women with no/mild anaemia. Mean platelets in severe anaemia was 37.8×10 Conclusion: Altered blood coagulation profile in pregnant women with severe anaemia could be a risk factor for PPH and requires further evaluation.
Mesh-Begriff(e)	Anemia/epidemiology ; Blood Coagulation ; Female ; Humans ; Parturition ; Postpartum Hemorrhage/epidemiology ; Pregnancy ; Prospective Studies
Sprache	Englisch
Erscheinungsdatum	2021-10-04
Erscheinungsland	England
Dokumenttyp	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2599832-8
ISSN	2044-6055 ; 2044-6055
ISSN (online)	2044-6055
ISSN	2044-6055
DOI	10.1136/bmjopen-2021-050815
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Maternal and perinatal Health Research Collaboration, India (MaatHRI): methodology for establishing a hospital-based research platform in a low and middle income country setting.

Nair, Manisha / Bezbaruah, Babul / Bora, Amrit Krishna / Bora, Krishnaram / Chhabra, Shakuntala / Choudhury, Saswati S / Choudhury, Arup / Deka, Dipika / Deka, Gitanjali / Ismavel, Vijay Anand / Kakoty, Swapna D / Koshy, Roshine M / Kumar, Pramod / Mahanta, Pranabika / Medhi, Robin / Nath, Pranoy / Rani, Anjali / Roy, Indrani / Sarma, Usha /

V, Carolin Solomi / Talukdar, Ratna Kanta / Zahir, Farzana / Hill, Michael / Kansal, Nimmi / Nakra, Reena / Baigent, Colin / Knight, Marian / Kurinczuk, Jenny J

F1000Research

2020 Band 9, Seite(n) 683

Abstract: Background: ...

Abstract	Background:
Mesh-Begriff(e)	Child Health Services ; Developing Countries ; Evidence-Based Medicine ; Family ; Female ; Hospitals ; Humans ; India ; Infant ; Maternal Health Services ; Observational Studies as Topic ; Pregnancy ; Prenatal Care ; Quality Improvement
Sprache	Englisch
Erscheinungsdatum	2020-07-07
Erscheinungsland	England
Dokumenttyp	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2699932-8
ISSN	2046-1402 ; 2046-1402
ISSN (online)	2046-1402
ISSN	2046-1402
DOI	10.12688/f1000research.24923.3
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: HLA-G isoforms, HLA-C allotype and their expressions differ between early abortus and placenta in relation to spontaneous abortions.

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Artikel ; Online: A comparative study on regulation of HLA-G expression in bad obstetric history and in head and neck squamous cell carcinoma from Northeast India.

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Artikel ; Online: Maternal and fetal factors associated with stillbirth in singleton pregnancies in 13 hospitals across six states in India: A prospective cohort study.

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Artikel ; Online: Risk factors for labour induction and augmentation: a multicentre prospective cohort study in India.

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Artikel ; Online: The complex relationship between iron status and anemia in pregnant and postpartum women in India: Analysis of two Indian study cohorts of uncomplicated pregnancies.

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Artikel ; Online: Relationship between anaemia, coagulation parameters during pregnancy and postpartum haemorrhage at childbirth: a prospective cohort study.

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Artikel ; Online: Maternal and perinatal Health Research Collaboration, India (MaatHRI): methodology for establishing a hospital-based research platform in a low and middle income country setting.

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