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1.
Hypertens Res ; 2024 Jul 01.
Article in English | MEDLINE | ID: mdl-38951678

ABSTRACT

Pregnancy-induced hypertension (PIH), a prominent determinant of maternal mortality and morbidity worldwide, is hindered by the absence of efficacious biomarkers for early diagnosis, contributing to suboptimal outcomes. Here, we explored potential causal relationships between blood metabolites and the risk of PIH using Mendelian randomization (MR). We employed a two-sample univariable MR approach to empirically estimate the causal relationships between 249 circulating metabolites and PIH. Inverse variance weighted, MR-egger, weight median, simple mode, and weighted mode methods were used for causal estimates. The exposure-to-outcome directionality was confirmed with the MR Steiger test. The Bayesian model averaging MR (MR-BMA) method was applied to detect the predominant causal metabolic traits with alignment for pleiotropy effects. In the primary analysis, analyzing 249 metabolites, we identified 25 causally linked to PIH, including 11 lipid-related traits and 6 associated with fatty acid (un)saturation. Importantly, MR-BMA analyses corroborated the total concentration of branched-chain amino acids(total-BCAA) to be the highest rank causal metabolite, followed by leucine (Leu), phospholipids to total lipids ratio in medium LDL (M-LDL-PL-pct), and Val (all P < 0.05). The directionality of causality predicted by univariable MR and MR-BMA for these metabolites remained consistent. This study highlights the causal connection between metabolites and PIH risk. It highlighted BCAAs as the strongest causal candidates warranting further investigation. Since PIH typically occurs in the second and third trimesters, extending these findings could inform earlier strategies to reduce its risk. Directed acyclic graph of the MR framework investigating the causal relationship between metabolites and PIH. MR: Mendelian randomization; GIVs: genetic instrument variables; SNPs: single-nucleotide polymorphism; IVW: inverse variance weighted; WM: weighted median; PIH: pregnancy-induced hypertension; SM: significant metabolite; MR-BMA: Bayesian model averaging MR.

2.
Cureus ; 16(5): e61340, 2024 May.
Article in English | MEDLINE | ID: mdl-38947727

ABSTRACT

This review seeks to evaluate the levels of health-related quality of life (HRQoL) among pregnant women experiencing pregnancy-induced hypertension (PIH). It also aims to identify the specific aspects of HRQoL most impacted by PIH during pregnancy and determine the existence of effective interventions to enhance the HRQoL of these pregnant women. A systematic literature search was conducted in the following databases: PUBMED, SCOPUS, Google Scholar, and EMBASE using the following keywords: Health-related quality of life; pregnancy; pregnancy-induced hypertension; quality of life; gestational hypertension. Among the 32 studies assessed, only eight met the criteria for inclusion, exhibiting a good quality based on assessment with both AXIS (Appraisal Tool for Cross-Sectional Studies) and CASP (Critical Appraisal Skills Programme) checklists. The findings indicate a decline in HRQoL among pregnant women with gestational hypertension, notably affecting both physical and mental dimensions. Furthermore, some studies provided recommendations for interventions that healthcare professionals could employ to improve poor HRQoL levels. Limited research has focused on the HRQoL in pregnant women with PIH. Compared to their healthy counterparts, pregnant women experiencing PIH exhibit a decrease in their HRQoL. It's crucial for healthcare practitioners to proactively address the HRQoL of these pregnant women using effective strategies to mitigate this decline. This approach aims to safeguard both pregnant women and their fetuses from potential complications associated with lower HRQoL levels.

3.
Reprod Biol Endocrinol ; 22(1): 77, 2024 Jul 08.
Article in English | MEDLINE | ID: mdl-38978060

ABSTRACT

Gestational hypertension (PIH), especially pre-eclampsia (PE), is a common complication of pregnancy. This condition poses significant risks to the health of both the mother and the fetus. Emerging evidence suggests that epigenetic modifications, particularly DNA methylation, may play a role in initiating the earliest pathophysiology of PIH. This article describes the relationship between DNA methylation and placental trophoblast function, genes associated with the placental microenvironment, the placental vascular system, and maternal blood and vascular function, abnormalities of umbilical cord blood and vascular function in the onset and progression of PIH, as well as changes in DNA methylation in the progeny of PIH, in terms of maternal, fetal, and offspring. We also explore the latest research on DNA methylation-based early detection, diagnosis and potential therapeutic strategies for PIH. This will enable the field of DNA methylation research to continue to enhance our understanding of the epigenetic regulation of PIH genes and identify potential therapeutic targets.


Subject(s)
DNA Methylation , Epigenesis, Genetic , Hypertension, Pregnancy-Induced , Humans , DNA Methylation/genetics , Pregnancy , Female , Hypertension, Pregnancy-Induced/genetics , Epigenesis, Genetic/genetics , Placenta/metabolism , Pre-Eclampsia/genetics , Pre-Eclampsia/diagnosis , Trophoblasts/metabolism
4.
Healthcare (Basel) ; 12(13)2024 Jul 08.
Article in English | MEDLINE | ID: mdl-38998895

ABSTRACT

A composite cardiometabolic risk prediction tool will support the systematic identification of women at increased cardiometabolic risk during pregnancy to enable early screening and intervention. This study aims to identify and select predictor variables for a composite risk prediction tool for cardiometabolic risk (gestational diabetes mellitus and/or hypertensive disorders of pregnancy) for use in the first trimester. A two-round modified online Delphi study was undertaken. A prior systematic literature review generated fifteen potential predictor variables for inclusion in the tool. Multidisciplinary experts (n = 31) rated the clinical importance of variables in an online survey and nominated additional variables for consideration (Round One). An online meeting (n = 14) was held to deliberate the importance, feasibility and acceptability of collecting variables in early pregnancy. Consensus was reached in a second online survey (Round Two). Overall, 24 variables were considered; 9 were eliminated, and 15 were selected for inclusion in the tool. The final 15 predictor variables related to maternal demographics (age, ethnicity/race), pre-pregnancy history (body mass index, height, history of chronic kidney disease/polycystic ovarian syndrome, family history of diabetes, pre-existing diabetes/hypertension), obstetric history (parity, history of macrosomia/pre-eclampsia/gestational diabetes mellitus), biochemical measures (blood glucose levels), hemodynamic measures (systolic blood pressure). Variables will inform the development of a cardiometabolic risk prediction tool in subsequent research. Evidence-based, clinically relevant and routinely collected variables were selected for a composite cardiometabolic risk prediction tool for early pregnancy.

5.
BMC Pregnancy Childbirth ; 24(1): 433, 2024 Jun 17.
Article in English | MEDLINE | ID: mdl-38886689

ABSTRACT

OBJECTIVIES: Pregnancy induced hypertension (PIH) syndrome is a disease that unique to pregnant women and is associated with elevated risk of offspring cardiovascular diseases (CVDs) and neurodevelopmental disorders in their kids. Previous research on cord blood utilizing the Human Methylation BeadChip or EPIC array revealed that PIH is associated with specific DNA methylation site. Here, we investigate the whole genome DNA methylation landscape of cord blood from newborns of PIH mother. METHODS: Whole-genome bisulfite sequencing (WGBS) was used to examine the changes in whole genome DNA methylation in the umbilical cord blood of three healthy (NC) and four PIH individuals. Using methylKit, we discovered Hypo- and hyper- differentially methylated probes (DMPs) or methylated regions (DMRs) in the PIH patients' cord blood DNA. Pathway enrichments were assessed using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment assays. DMPs or DMRs relevant to the immunological, neurological, and circulatory systems were also employed for enrichment assay, Metascape analysis and PPI network analysis. RESULTS: 520 hyper- and 224 hypo-DMPs, and 374 hyper- and 186 hypo-DMRs between NC and PIH group, respectively. Both DMPs and DMRs have enhanced pathways for cardiovascular, neurological system, and immune system development. Further investigation of DMPs or DMRs related to immunological, neurological, and circulatory system development revealed that TBK1 served as a hub gene for all three developmental pathways. CONCLUSION: PIH-associated DMPs or DMRs in umbilical cord blood DNA may play a role in immunological, neurological, and circulatory system development. Abnormal DNA methylation in the immune system may also contribute to the development of CVDs and neurodevelopment disorders.


Subject(s)
DNA Methylation , Fetal Blood , Hypertension, Pregnancy-Induced , Humans , Female , Pregnancy , Fetal Blood/chemistry , Infant, Newborn , Hypertension, Pregnancy-Induced/genetics , Hypertension, Pregnancy-Induced/blood , Adult , Epigenome , Epigenesis, Genetic , Case-Control Studies , Whole Genome Sequencing/methods
6.
J Pediatr ; 273: 114133, 2024 Jun 03.
Article in English | MEDLINE | ID: mdl-38838850

ABSTRACT

OBJECTIVE: To evaluate the proximal effects of hypertensive disorders of pregnancy (HDP) on a validated measure of brain abnormalities in infants born at ≤32 weeks' gestational age (GA) using magnetic resonance imaging at term-equivalent age. STUDY DESIGN: In a multisite prospective cohort study, 395 infants born at ≤32 weeks' GA, underwent 3T magnetic resonance imaging scan between 39 and 44 weeks' postmenstrual age. A single neuroradiologist, blinded to clinical history, evaluated the standardized Kidokoro global brain abnormality score as the primary outcome. We classified infants as HDP-exposed by maternal diagnosis of chronic hypertension, gestational hypertension, pre-eclampsia, or eclampsia. Linear regression analysis identified the independent effects of HDP on infant brain abnormalities, adjusting for histologic chorioamnionitis, maternal smoking, antenatal steroids, magnesium sulfate, and infant sex. Mediation analyses quantified the indirect effect of HDP mediated via impaired intrauterine growth and prematurity and remaining direct effects on brain abnormalities. RESULTS: A total of 170/395 infants (43%) were HDP-exposed. Adjusted multivariable analyses revealed HDP-exposed infants had 27% (95% CI 5%-53%) higher brain abnormality scores than those without HDP exposure (P = .02), primarily driven by increased white matter injury/abnormality scores (P = .01). Mediation analyses showed HDP-induced impaired intrauterine growth significantly (P = .02) contributed to brain abnormality scores (22% of the total effect). CONCLUSIONS: Maternal hypertension independently increased the risk for early brain injury and/or maturational delays in infants born at ≤32 weeks' GA with an indirect effect of 22% resulting from impaired intrauterine growth. Enhanced prevention/treatment of maternal hypertension may mitigate the risk of infant brain abnormalities and potential neurodevelopmental impairments.

7.
ChemistryOpen ; : e202400107, 2024 Jun 04.
Article in English | MEDLINE | ID: mdl-38837681

ABSTRACT

Oxidative stress caused by pregnancy-induced hypertension syndrome significantly affects the health of pregnant women. Hydrogen sulfide is a typical gaseous signal molecule against oxidative stress, and it is of profound significance to develop a detection method. In this study, a stimuli-responsive hydrogel was constructed based on the coordination and bonding principle of metal ions and chitosan (CS) to realize the quantitative detection of hydrogen sulfide (H2S). The chain of CS contains a large number of amino groups and hydroxyl groups, which can form the coordination structure with Cu2+, triggering CS to form a stable hydrogel. The hydrogel can be formed within about 5 s, which has the characteristics of rapid preparation. In the presence of target H2S, the cross-linking agent Cu2+ in the hydrogel can compete out, resulting in the collapse of the hydrogel and the release of the electrochemical probe. By detecting the concentration of the released electrochemical probe, the quantitative detection of H2S can be achieved. The prepared hydrogel has a good linear relationship with the concentration of H2S from 1 µM to 60 µm. At the same time, the hydrogel has good specificity and stability, and it can be applied to the detection of H2S in serum samples.

8.
Egypt Heart J ; 76(1): 71, 2024 Jun 07.
Article in English | MEDLINE | ID: mdl-38849680

ABSTRACT

BACKGROUND: Long-term cardiovascular complications are common among pediatric cancer survivors, and anthracycline-induced hypertension has become an essential reason for concern. Compared to non-cancer controls, survivors have a higher prevalence of hypertension, and as they age, their incidence rises, offering significant dangers to cardiovascular health. MAIN BODY: Research demonstrates that exposure to anthracyclines is a major factor in the development of hypertension in children who have survived cancer. Research emphasizes the frequency and risk factors of anthracycline-induced hypertension, highlighting the significance of routine measurement and management of blood pressure. Furthermore, cardiovascular toxicities, such as hypertension, after anthracycline-based therapy are a crucial be concerned, especially for young adults and adolescents. Childhood cancer survivors deal with a variety of cardiovascular diseases, such as coronary artery disease and cardiomyopathy, which are made worse by high blood pressure. In order to prevent long-term complications, it is essential to screen for and monitor for anthracycline-induced hypertension. Echocardiography and cardiac biomarkers serve as essential tools for early detection and treatment. In order to lower cardiovascular risks in pediatric cancer survivors, comprehensive management strategies must include lifestyle and medication interventions in addition to survivor-centered care programs. SHORT CONCLUSION: Proactive screening, monitoring, and management measures are necessary for juvenile cancer survivors due to the substantial issue of anthracycline-induced hypertension in their long-term care. To properly include these strategies into survivor-ship programs, oncologists, cardiologists, and primary care physicians need to collaborate together. The quality of life for pediatric cancer survivors can be enhanced by reducing the cardiovascular risks linked to anthracycline therapy and promoting survivor-centered care and research.

9.
Hypertens Pregnancy ; 43(1): 2366824, 2024 Dec.
Article in English | MEDLINE | ID: mdl-38864450

ABSTRACT

This study aimed to establish in vitro hemodilution and resupplementation assays for obstetric hemorrhage in pregnancy-induced hypertension (PIH) and to monitor the coagulation function dynamically using a coagulation and platelet function analyzer. Forty-seven singleton pregnant women were divided into normal (n = 24) and PIH (n = 23) groups. Peripheral blood samples were used to construct the assays, and the activated clotting time (ACT), clotting rate (CR), and platelet function index (PF) were measured. The results showed that the baseline ACT was higher in the PIH group (p < 0.01). Hemodilution assays showed decreased ACT and increased CR and PF, with ACT changes significantly lower in the PIH group (p < 0.05). CR changed most in both groups at lower dilution ratios (35% to 50%), while ACT changed most at a higher dilution ratio (75%). In the resupplementation assay, ACT exhibited the most significant response. The analyzer effectively detected differences between pregnant women with and without PIH. Thus, we need to pay more attention to the changes of ACT in the actual clinical application to assess the coagulation status of parturients.


Subject(s)
Blood Coagulation , Hypertension, Pregnancy-Induced , Platelet Function Tests , Humans , Female , Pregnancy , Adult , Hypertension, Pregnancy-Induced/blood , Hypertension, Pregnancy-Induced/physiopathology , Blood Coagulation/physiology , Blood Coagulation Tests , Postpartum Hemorrhage/blood , Young Adult
10.
Int J Mol Sci ; 25(11)2024 Jun 06.
Article in English | MEDLINE | ID: mdl-38892464

ABSTRACT

In this study, we investigated whether severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) spike protein may modify angiotensin-converting enzyme 2 (ACE2) activity in the plasma, heart, kidney, liver, lung, and six brain regions (amygdala, brain stem, cortex, hippocampus, hypothalamus, and striatum) of diabetic and hypertensive rats. We determine ACE2 activity in the plasma and lysates of heart, kidney, liver, lung, and six brain regions. MLN-4760 inhibits ACE2 activity in the plasma and all organs. On the other hand, soluble ACE2 (sACE2) activity increased in the plasma of diabetic rats, and there was no change in the plasma of hypertensive rats. ACE2 activity was augmented in the liver, brain stem, and striatum, while it decreased in the kidney, amygdala, cortex, and hippocampus of diabetic rats. ACE2 activity increased in the kidney, liver, and lung, while it decreased in the heart, amygdala, cortex, and hypothalamus of hypertensive rats. We measured the ACE2 content via enzyme-linked immunosorbent assay and found that ACE2 protein levels increased in the heart, while it decreased in the plasma, kidney, brain stem, cortex, hippocampus, hypothalamus, and striatum of diabetic rats. ACE2 protein levels decreased in the brain stem, cortex, hippocampus, and hypothalamus of hypertensive rats. Our data showed that the spike protein enhanced ACE2 activity in the liver and lungs of diabetic rats, as well as in the heart and three of the brain regions (cortex, hypothalamus, and striatum) of hypertensive rats.


Subject(s)
Angiotensin-Converting Enzyme 2 , Hypertension , Spike Glycoprotein, Coronavirus , Animals , Angiotensin-Converting Enzyme 2/metabolism , Rats , Spike Glycoprotein, Coronavirus/metabolism , Male , Hypertension/metabolism , SARS-CoV-2 , Diabetes Mellitus, Experimental/metabolism , Brain/metabolism , Brain/enzymology , COVID-19/metabolism , COVID-19/virology , Carboxypeptidases/metabolism , Kidney/metabolism , Kidney/enzymology , Humans , Imidazoles , Leucine/analogs & derivatives
11.
Cureus ; 16(4): e59040, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38800298

ABSTRACT

Background High-risk pregnancies are characterized by various factors that pose potential risks to maternal and newborn health outcomes. Early detection of these high-risk pregnancies serves as a crucial initial step in preventing maternal mortality and morbidity, thereby promoting the overall health of both mother and baby. This study sought to assess the occurrence of high-risk pregnancy and investigate the factors associated with it among pregnant women. Methods A descriptive survey was undertaken at the Obstetrics and Gynaecology outpatient department of a District Government Hospital in Tamil Nadu, involving 1889 pregnant women in their second and third trimesters. A structured questionnaire, constructed following the Indian standard criteria outlined by the National Health Portal of India, served as the data collection tool. The survey was conducted in February and March 2022, during which pregnant women were interviewed. Subsequently, the collected data underwent descriptive and inferential statistical analysis. Results Among the 1889 pregnant women surveyed, 29% (n=530) were classified as high-risk pregnancies. Within this group, 34.3% (n=182) were diagnosed with hypothyroidism, while 23.2% (n=123) experienced pregnancy-induced hypertension. Significant associations with high-risk pregnancy were observed for factors such as age, education status, occupation, family income, socioeconomic status, and gravida among the pregnant women. Conclusion Policymakers must urgently implement evidence-based interventions aimed at early detection and treatment of high-risk pregnancies. This proactive approach is essential in preventing maternal mortality and morbidity.

12.
Cureus ; 16(4): e59352, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38817500

ABSTRACT

INTRODUCTION: Preeclampsia, a hypertensive disorder in pregnancy, is a multisystem disease of unknown etiology and is associated with an increased risk of maternal mortality and morbidity. Infants from preeclampsia mothers have significantly higher incidence of prematurity, somatic growth retardation, thrombocytopenia, low birth weight, respiratory distress syndrome, and long duration of admission to neonatal intensive care (NICU). AIMS AND OBJECTIVES: This study was done to study the maternal mortality and morbidity and foetal outcome in pregnant women with severe preeclampsia. METHOD: This observational study was done in the Department of Obstetrics and Gynaecology, of a tertiary care centre, from the period October 2015 to October 2017. Data was collected from all 130 women attending the antenatal clinic of tertiary care hospital and ward admission and all details such as demographic details, obstetrics examination, and all clinical findings were noted and from that made results.  Result: After applying inclusion and exclusion criteria all 130 women were observed in this study. Among 130 women 47 were diagnosed with preeclampsia. Mainly primigravida women were diagnosed with preeclampsia in the 21-25 years group. Among 47 preeclampsia women, 39 women had a BMI of 19-25 kg/m2. Thirty-two of 47 (68.09%) women were diagnosed with preeclampsia around 36-39 weeks. Among all preeclampsia, 28 women out of 47 (59.5%) women delivered babies vaginally, 18 of 47 (38.3%) women delivered through cesarean section, and one of 47 (2.13%) underwent preterm vaginal delivery. In preeclampsia, women's babies were delivered mostly (25/47, 53.19%) ≤2.5 kg weight and only one baby was shifted to NICU because of low birth weight. Preeclampsia increases maternal mortality and morbidity but in this study mortality was not done because our hospital is a tertiary care center with all ICU (intensive care unit) and NICU setup. CONCLUSION: Preterm births and cesarean deliveries were the mild to severe outcomes that were noted. ICU and NICU hospitalizations as a result of severe complications place a heavy demand on medical facilities. There are firm guidelines for the management of pregnancy-induced hypertension and its complications. For appropriate management, there is careful consideration of various factors, and individual case studies are required.

13.
J Med Life ; 17(2): 171-176, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38813370

ABSTRACT

While standardized assessment of knowledge, attitudes, and practices (KAP) related to gestational diabetes and hypertension is possible with a valid tool, existing research remains limited. This prospective validation study aimed to develop and validate a novel tool to assess the KAP of midwives and obstetric nurses. We included 125 midwives and obstetric nurses who routinely care for patients with gestational diabetes and hypertension. The tool demonstrated good internal consistency (Cronbach's alpha): knowledge (0.729, 95% CI, 0.654-0.776), attitude (0.756, 95% CI, 0.690-0.814), and practices (0.925, 95% CI, 0.905-0.943). Difficulty indices (d) ranged from 0.38 to 0.99 (knowledge), 0.41 to 0.99 (attitudes), and 0.41 to 0.93 (practices), indicating appropriate item difficulty. Discrimination indices (D) confirmed items could differentiate between respondents with low and high knowledge levels (D range: 0.02-0.77 for knowledge, 0.06-0.64 for attitudes, 0.20-0.84 for practices). The robust psychometric properties of this tool support its use in future research on KAP related to diabetes and gestational hypertension management in midwives and nurses. This instrument has the potential to be valuable in various settings, including baseline assessment before educational programs or evaluation of learning outcomes after interventions.


Subject(s)
Diabetes, Gestational , Health Knowledge, Attitudes, Practice , Psychometrics , Humans , Diabetes, Gestational/diagnosis , Pregnancy , Female , Psychometrics/methods , Adult , Prospective Studies , Nurses , Midwifery , Surveys and Questionnaires , Hypertension, Pregnancy-Induced/diagnosis , Hypertension
14.
Cytokine ; 179: 156612, 2024 07.
Article in English | MEDLINE | ID: mdl-38631184

ABSTRACT

INTRODUCTION: Pregnancy-induced hypertension (PIH) and preeclampsia (PE) are associated with disturbed maternal inflammatory response, oxidative stress and vascular endothelial cell dysfunction. Obesity is one of risk factors of PE. Leptin is elevated in obesity and its level correlates positively with the amount of adipose tissue. In contrast, adiponectin levels are decreased in obesity. Sirtuins are expressed in the placenta, however their role in pregnancy-related pathology in humans is not known. AIM OF THE STUDY: The aim of our study was to measure serum concentrations of selected sirtuins, adiponectin and leptin in healthy pregnancy and in women with PIH. MATERIALS AND METHODS: The study included 70 women: 38 healthy pregnant women and 32 women with PIH. Blood samples were obtained between the 20th and 40th week of gestation. Serum levels of sirtuins 1, 3, 6, leptin and adiponectin were measured with ELISA. RESULTS: Leptin levels were significantly higher in PIH group as compared to the controls and correlated positively with BMI. Highest leptin levels were observed in women who needed a cesarean section. Levels of sirtuins 1, 3 and 6 were similar in both groups and did not correlate with BMI. CONCLUSIONS: High leptin levels in PIH women during 3rd trimester might be helpful to predict the necessity for a caesarian section. Blood levels of sirtuins 1, 3 and 6 measured after the 20th week of gestation cannot be regarded as a single diagnostic test for PIH or preeclampsia. More studies to clarify significance of sirtuins in PIH and PE development and diagnosis are needed.


Subject(s)
Adiponectin , Hypertension, Pregnancy-Induced , Leptin , Sirtuins , Humans , Female , Adiponectin/blood , Pregnancy , Leptin/blood , Adult , Sirtuins/blood , Hypertension, Pregnancy-Induced/blood , Pre-Eclampsia/blood , Body Mass Index , Sirtuin 3/blood , Sirtuin 1/blood
15.
Spectrochim Acta A Mol Biomol Spectrosc ; 314: 124231, 2024 Jun 05.
Article in English | MEDLINE | ID: mdl-38574610

ABSTRACT

Hypochlorous acid (HClO), as an essential reactive oxygen species (ROS) in biological systems, plays a pivotal role in processes of physiology and pathology. Abnormal fluctuations in HClO concentration can lead to various diseases, such as inflammation, cardiovascular diseases, and neurodegeneration. Therefore, developing an approach to rapidly and sensitively quantify ClO- content is vital to biomedicine development and bioassays. Herein, we fabricated a novel "turn-on" label-free fluorescence DNA probe to specifically detect hypochlorite ion (ClO-) based on G-quadruplex formation. To this end, we designed a G-rich signal DNA sequence (S-DNA) and a block DNA sequence (B-DNA), followed by the introduction of ClO--responsive phosphorothioate (PS) into B-DNA. In the absence of ClO-, B-DNA hybridized with S-DNA, preventing G-quadruplex formation from S-DNA; this resulted in the relatively low fluorescence intensity of ThT. Once ClO- was added, the hydrolysis between PS and ClO- split the B-DNA into two fragments, resulting in B-DNA breaking away from S-DNA, allowing G-quadruplex formation from S-DNA and increasing the fluorescence intensity of ThT. Using this method, we can detect ClO- without the interference of additional reactive oxygen species. The detection limit of ClO- was as low as 10 nM. Furthermore, this method facilitates the detection of ClO- within the tissues of rats with stress-induced hypertension.


Subject(s)
Benzothiazoles , Biosensing Techniques , DNA, B-Form , G-Quadruplexes , Hypertension , Humans , Fluorescent Dyes , DNA , Biosensing Techniques/methods , Hypochlorous Acid
16.
Cureus ; 16(3): e56751, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38650793

ABSTRACT

INTRODUCTION: In the current times, fetal growth monitoring has become readily available with the help of Doppler ultrasound. Identification of pregnancies that are at risk for perinatal morbidity and mortality has been a primary goal of obstetric care. Doppler study is a fast, non-invasive test that provides significant information about the hemodynamic status of the fetus. It is an efficient diagnostic modality to assess fetal compromise, which helps in timely intervention in high-risk pregnancies for better perinatal outcomes. OBJECTIVES: The objectives of this study were to know the correlation between antenatal Doppler findings and perinatal outcomes, including preterm labor, cesarean section, birth weight, and rate of admission of neonates in the neonatal intensive care unit (NICU). Admission to NICU was taken as the primary outcome. METHODS: This is a tertiary care hospital-based prospective study done at Maharaja Agrasen Medical College, Agroha, India. A hundred high-risk pregnant women with oligohydramnios, intrauterine growth restriction (IUGR), pregnancy-induced hypertension (PIH), diabetes mellitus (DM), anemia, or Rh incompatibility were included. Pregnancies in the first and second trimesters and congenital anomalies in babies were excluded from the study. The patients were examined for a Doppler study of the umbilical artery, fetal middle cerebral artery (MCA), and both maternal uterine arteries. Parameters in the form of a resistance index (RI), pulsatility index (PI), and systolic/diastolic ratio (S/D) of all the arteries were taken. Details of delivery and fetal outcomes were recorded. Data were correlated with Doppler findings. For comparing categorical data, the chi-square (X2) test and Fisher's exact test were performed. The comparison of continuous data between the two groups was done using an independent t-test. All statistical calculations were done using the computer program IBM SPSS Statistics for Windows, version 25 (released 2015; IBM Corp., Armonk, New York, United States). RESULTS: All the 100 cases with either normal or abnormal Doppler were comparable in terms of maternal age and parity. The prevalence of oligohydramnios was 27% (N = 27), PIH was seen in 20% (N = 20), anemia in 19% (N = 19), IUGR in 12% (N = 12), and oligohydramnios with IUGR in 13% (N = 13). In oligohydramnios, maternal anemia, Rh incompatibility, and DM, Doppler was found to be normal. In PIH, IUGR, and oligohydramnios with IUGR, abnormal Doppler was seen in four (20%), two (16%), and 10 (76%) cases, respectively. Among 84 candidates with normal Doppler, 49 (58%) got delivered by the vaginal route. Out of 16 abnormal Doppler cases, five were vaginally delivered (31%). Among 16 patients with abnormal Doppler, 15 patients, i.e., 93.75%, had low birth weight (LBW, <2.5 kg) (p-value < 0.001), 93.75% (N = 15) delivered before 37 weeks, and 13 (81.25%) newborns were admitted in the nursery. CONCLUSION: Abnormal Doppler was associated with an increased rate of low birth weight and admissions to the NICU with no effect on preterm delivery or cesarean section rates. The study strengthens the fact that Doppler studies in mothers can be used to plan the mode of delivery, predict the need for resuscitation, and anticipate the outcome of newborns.

17.
Neuropeptides ; 105: 102418, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38442503

ABSTRACT

The aim of this study is to verify the impact of Leptin in blood pressure (BP) regulation and Leptin-resistance in metabolic/neurogenic hypertension through baroreflex afferents and dysregulation. Artery BP/heart rate (HR) were measured while nodose (NG) microinjection of Leptin, membrane depolarization/inward current were obtained by whole-cell patch from NG neurons isolated from adult female rats. Baroreflex sensitivity (BRS) tested with PE/SNP, distribution/expression of Leptin/receptors in the NG/nucleus tractus solitary (NTS) examined using immumostaining and qRT-PCR, and serum concentrations of Leptin/NE measured by ELISA were observed in control and high fructose-drinking induced hypertension (HTN-HFD) rats. The results showed that BP was significantly/dose-dependently reduced by Leptin NG microinjection likely through direct excitation of female-specific subpopulation of Ah-type neurons showing a potent membrane depolarization/inward currents. Sex-specific distribution/expression of OB-Ra/OB-Rb in the NG were detected with estrogen-dependent manner, similar observations were also confirmed in the NTS. As expected, BRS was dramatically decreased in the presence of PE/SNP in both male and female rats except for the female with PE at given concentrations. Additionally, serum concentration of Leptin was elevated in HFD-HTN model rats of either sex with more obvious in females. Under hypertensive condition, the mean fluorescent density of OB-R and mRNA expression for OB-Ra/OB-Rb in the NG/NTS were significantly down-regulated. These results have demonstrated that Leptin play a role in dominant parasympathetic drive via baroreflex afferent activation to buffer Leptin-mediated sympathetic activation systemically and Leptin-resistance is an innegligible mechanism for metabolic/neurogenic hypertension through baroreflex afferent dysregulation.


Subject(s)
Baroreflex , Blood Pressure , Hypertension , Leptin , Animals , Female , Male , Rats , Baroreflex/drug effects , Blood Pressure/drug effects , Heart Rate/drug effects , Hypertension/metabolism , Hypertension/physiopathology , Leptin/pharmacology , Leptin/metabolism , Leptin/blood , Neurons/metabolism , Neurons/drug effects , Nodose Ganglion/metabolism , Nodose Ganglion/drug effects , Rats, Sprague-Dawley , Receptors, Leptin/metabolism , Solitary Nucleus/metabolism , Solitary Nucleus/drug effects
18.
Cureus ; 16(2): e55037, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38550509

ABSTRACT

Cardiac arrest after acute pulmonary edema in pregnancy is an uncommon event but one with a potentially disastrous outcome. We report the case of a pregnant woman with preeclampsia who presented with rapidly advancing pulmonary edema and subsequently went into cardiac arrest on arrival at the operating room. A perimortem cesarean section was performed in addition to cardiopulmonary resuscitation and anesthesia. These simultaneous treatments resulted in excellent maternal and neonatal outcomes. Moreover, therapeutic brain hypothermia was performed. To our knowledge, this is the first case report of a patient undergoing a cesarean section during cardiac arrest and treated with brain hypothermia. We discuss some of the issues arising from the case in this report.

19.
Pak J Med Sci ; 40(4): 629-636, 2024.
Article in English | MEDLINE | ID: mdl-38544992

ABSTRACT

Background and Objective: Pregnancy-induced hypertension (PIH) has severe implications for maternal morbidity and mortality; thus, boosting pregnant women's awareness and knowledge of this medical condition is crucial for improving the mother's and foetus's health. This study assessed the awareness and knowledge of PIH and its risk factors among pregnant women in Mdantsane, South Africa. Methods: This cross-sectional study involved 249 conveniently selected and consenting pregnant women attending antenatal care clinics in Mdantsane, Buffalo City Metropolitan Municipality, South Africa. A self-designed questionnaire was utilised to collect data. Descriptive statistics, chi-square (χ2) test and multivariate logistic regression analysis were performed. The significance level was 0.05. Results: Over 50% of the women were knowledgeable about PIH and associated risk factors ((χ2=4.92; p = 0.04). The prevalence of PIH was 51.8%, and married women were more aware of the PIH risk factors (71.1%). Women with previous pregnancies were more likely to be aware of PIH (OR = 17.1, 95%; CI = 9.09 to 32.15) compared to first time mothers. Women in age group 36-45 were 2.5 times more likely to be aware of PIH (OR = 2.5, 95% CI: 1.19-3.24) compared to women aged <35 years. Likewise, women aged 36-45 years were two times more likely to be knowledgeable about risk factors for PIH (OR = 2.3, 95% CI: 1.14-2.81) compared to women aged <35 years. Married women were more likely to be aware of PIH risk factors (OR = 2.70, 95% CI = 1.35-5.47) than unmarried women. Moreover, pregnancy increases the likelihood (OR=12.8, 95% CI: 6.97-23.58) of being aware of PIH risk factors. There was a significant difference between the mean ages of women who knew about PIH risk factors and those who do not (t=3.49, Mean difference = 3.49, p=0.0001, 95% CI (2.54; 4.44)). Conclusion: The prevalence of PIH was high. Age, history of PIH, previous pregnancy, and marital status were predictors of PIH knowledge/awareness and risk factors for PIH. Context-specific health education programmes during prenatal visits are crucial to improving pregnant women's knowledge of PIH.

20.
Cureus ; 16(2): e54338, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38500916

ABSTRACT

There has been a notable rise in instances of multiple-fetus pregnancies over the last decade, attributed to the widespread adoption of assisted reproductive technologies. Moreover, these pregnancies have been associated with the use of drugs to induce ovulation. While some cases involve the loss of one twin with minimal consequences for the surviving twin, the demise of a fetus after the first trimester, especially beyond three months into the pregnancy, can significantly impact the health of both the mother and the surviving fetus. Unfavorable outcomes linked to the loss of one twin after the first trimester include impaired physical growth of the surviving fetus, preterm delivery, neurological abnormalities, and, in certain instances, the death of the surviving twin. This report provides a detailed account of a specific case involving twin pregnancies where a single fetal death occurred at the 24th week of gestation, leading to severe pregnancy-induced hypertension and pulmonary edema. Upon reviewing peer-reviewed articles related to similar cases in online databases, no exact matches were identified for cases with a comparable presentation. The scarcity of literature on the development of pre-eclampsia following the death of a single fetus suggests a gap in obstetric research in this area. Consequently, the uniqueness of this case report arises from its distinctive circumstances and the limited existing literature on the subject within the obstetric community.

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