23 results on '"Rekha Bhar"'
Search Results
2. Metallosurfactants as Nanoreactors for Nanoparticle Synthesis
- Author
-
Jaspreet Kaur, Rekha Bhar, Khushwinder Kaur, and Surinder K. Mehta
- Published
- 2022
3. Insights into hepatitis B virus infection among pregnant women: Assessing seroprevalence, serological, and virological profile at a tertiary care hospital in India
- Author
-
J. Belinda Jothi, Shilpee Kumar, Rekha Bharti, and Aradhana Bhargava
- Subjects
hepatitis b antigens ,hepatitis b virus ,seroepidemiologic study ,Medicine - Abstract
Background: India bears a considerable global burden, hosting over 37 million hepatitis B virus (HBV) carriers, primarily transmitted through the perinatal route. Therefore, this study aimed to determine the prevalence of HBV infection among pregnant women attending the antenatal clinic at a tertiary care hospital. Aims: This study sought to assess the seroprevalence of HBV infection in pregnant women, analyze the serological markers of HBV infection, and ascertain the viral load of HBV DNA. Settings and Design: The study was conducted at the Department of Microbiology and Department of Obstetrics and Gynaecology, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India. It adopted a hospital-based cross-sectional design. Subjects and Methods: The study spanned from January 2021 to June 2022. HBV infection among pregnant women attending the antenatal clinic of a tertiary care hospital was identified by screening their sera using hepatitis B surface antigen (HBsAg) ELISA. For samples testing positive for HBsAg ELISA, additional tests were administered, including HBeAg, HBeAb, hepatitis B core immunoglobulin M, and total hepatitis B core antibody (immunoglobulin [Ig] M + IgG) by ELISA. In addition, a quantitative assessment of HBV DNA was conducted using real-time reverse transcription-polymerase chain reaction. Statistical Analysis Used: All data underwent coding and entry into an MS Excel spreadsheet, with analysis executed using the Statistical Package for the Social Sciences (SPSS) version 21.0. Ethical approval was obtained from the Institutional Ethics Committee, Vardhman Mahavir Medical College and Safdarjung Hospital. Informed consent was obtained from all pregnant women participating in the study. Results: Among the 1519 pregnant women screened for HBsAg, 15 tested positive, resulting in a seroprevalence of 1% (15/1519). Subsequent examination revealed two women with acute HBV/chronic hepatitis B-acute exacerbation infections (high infectivity) and 13 women with chronic HBV infections (low infectivity). Furthermore, only HBeAg-positive women exhibited HBV DNA levels surpassing 2000 IU/mL. Conclusions: The 1% seroprevalence of HBV among pregnant women implies an approximate count of 4 million infected women of reproductive age, posing a risk of vertical transmission to nearly 4 million newborns annually. With HBeAg-positive mothers, the risk of neonatal transmission ranges from 70% to 90%. Timely interventions for all pregnant women are imperative to mitigate HBV vertical transmission.
- Published
- 2024
- Full Text
- View/download PDF
4. Contributors
- Author
-
Rohana Adnan, Shaikh Ziauddin Ahammad, Sheeraz Ahmad Alaie, Emmellie Laura Albert, S. Wazed Ali, María C. Area, Aayushi Arora, Kushal Arya, Satyaranjan Bairagi, Rekha Bhar, Harish Chandra, Che Azurahanim Che Abdullah, Anupam Chowdhury, Nicolás M. Clauser, Shikha Dubey, Lau Gee Een, Fernando F. Felissia, Yogendra K. Gautam, Pradeep K. Goyal, Liberato V. Haule, Youngmin Hong, Ghasan Fahim Huseien, Rahul Kandpal, Ramesh Kataria, Perminder Jit Kaur, Geetanjali Kaushik, Samreen Heena Khan, Hyunook Kim, Minsoo Kim, Arun Kumar, Ashwani Kumar, Vijay Kumar, Vinod Kumar, Pragati Kumari, Ingyu Lee, Divya Manocha, null Meenu, Surinder Kumar Mehta, Muhammad Azri Muhamad Yusop, Lutamyo Nambela, Ashreen Norman, Dharshini Perumal, Manviri Rani, Gyandshwar Kumar Rao, Varun Rawat, null Richa, null Roohi, Kwok Wei Shah, Mohammad Shahadat, Uma Shanker, Anuja Sharma, Kavita Sharma, Shaveta Sharma, Hardeep Singh Sheoran, R.A. Siddiqui, Beer Pal Singh, Vikash Singh, Chandra Mohan Srivastava, Vimal Chandra Srivastava, Shrestha Tyagi, María E. Vallejos, Monu Verma, Archana Yadav, Jyoti Yadav, Saurabh Yadav, null Yasmin, and Siti Nadiah Zulkifli
- Published
- 2022
5. Nanomaterials in the cosmetics industry: A greener approach
- Author
-
Kushal Arya, Rekha Bhar, null Richa, Ramesh Kataria, and Surinder Kumar Mehta
- Published
- 2022
6. Designed Meso-macroporous Silica Framework Impregnated with Copper Oxide Nanoparticles for Enhanced Catalytic Performance
- Author
-
Surinder Kumar Mehta, Rohini Kanwar, and Rekha Bhar
- Subjects
Materials science ,Copper oxide nanoparticles ,Organic Chemistry ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Catalysis ,0104 chemical sciences ,Inorganic Chemistry ,Chemical engineering ,Physical and Theoretical Chemistry ,0210 nano-technology - Published
- 2018
7. Exploring interactions of copper hybrid surfactants with calf thymus-DNA
- Author
-
Rekha Bhar, Gurpreet Kaur, and Surinder Kumar Mehta
- Subjects
Circular dichroism ,Chemistry ,Analytical chemistry ,Ionic bonding ,chemistry.chemical_element ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Binding constant ,Copper ,Atomic and Molecular Physics, and Optics ,0104 chemical sciences ,Electronic, Optical and Magnetic Materials ,Crystallography ,Pulmonary surfactant ,Materials Chemistry ,Zeta potential ,Molecule ,Physical and Theoretical Chemistry ,Cyclic voltammetry ,0210 nano-technology ,Spectroscopy - Abstract
The efficacy of copper functionalized surfactant cetylpyridinium chloride (CPC) to bind with Calf- thymus DNA was evaluated using different physicochemical and spectroscopic techniques. The two surfactant moieties viz. [CPC] + [CuCl 3 ] − and [CPC] 2 + [CuCl 4 ] 2 − were synthesized and a thorough approach has been made to understand the binding interface between CT-DNA and synthesized surfactants. Binding saturation point (BSP) of negatively charged CT-DNA with positively charged copper metallosurfactants was estimated from Zeta potential and conductivity data. Cyclic voltammetry and Zeta potential variations inferred electrostatic interaction between CT-DNA and metal hybrid surfactants. Fluorescence emission spectrscopy also points out that functionalized surfactants adopted a partial mode of binding through ionic interactions with moderate binding constant values. Circular Dichroism analysis lends us on the ground of non-covalent binding between CT-DNA and surfactant complexes. Conformational changes in the molecule under investigation have also been visualized through fluorescence microscopy imaging.
- Published
- 2017
8. Photophysical deactivation behaviour of Rhodamine B using different graphite materials
- Author
-
S.K. Mehta, Varnika Prakash, Rekha Bhar, and Shweta Sharma
- Subjects
Materials science ,Nanocomposite ,Quenching (fluorescence) ,Scanning electron microscope ,General Chemical Engineering ,Infrared spectroscopy ,02 engineering and technology ,General Chemistry ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Photochemistry ,01 natural sciences ,0104 chemical sciences ,symbols.namesake ,chemistry.chemical_compound ,chemistry ,symbols ,Rhodamine B ,Graphite ,0210 nano-technology ,Spectroscopy ,Raman spectroscopy - Abstract
In the present work, an attempt has been made to elucidate the structural features of synthesized graphite materials, i.e., expanded graphite (EG) and an expanded graphite/silver nanoparticles (EG/AgNPs) nanocomposite. In order to obtain knowledge about the functional groups present, the interlayer spacing between the carbon layers, topographical features, and the characterization of the materials were carried out using Fourier-transformer infrared spectroscopy, X-ray diffraction, Raman spectroscopy, field emission scanning electron microscopy-energy dispersive X-ray spectroscopy and atomic force microscope. Furthermore, the quenching efficiency of the synthesized graphite materials was also compared using Rhodamine B (Rhd B) as a fluorescent probe. The non-linear behaviour of the Stern–Volmer plots suggested that the complex quenching mechanism (a combination of static and dynamic quenching) was responsible for the decrease in photoluminescence intensity. At a lower concentration of the quencher, the static quenching mechanism was dominant whereas at a higher concentration dynamic processes seemed to be more likely. The binding strength of the complexation between the fluorophore and the quencher at lower concentrations was studied in detail for both of the synthesized materials. The analysis showed that the EG/AgNPs exhibited better quenching efficiency and possessed a strong binding strength in comparison to EG. The thermodynamic parameters of this association suggested that the interaction process was spontaneous and exothermic in nature. Thus, this work offers helpful insights into the fluorescence quenching mechanisms of the Rhd B/EG and its composite system.
- Published
- 2019
9. Risk Stratification of Foetuses based on Estimated Foetal Weight less than the 40th Percentile and Evaluation of Perinatal Outcomes using Third-trimester Obstetric Ultrasound: A Prospective Cohort Study
- Author
-
Sakshi Nischal, Sumitra Bachani, Jyotsana Suri, Harish Chellani, Suchandana Das Gupta, Rekha Bharti, and Divya Pandey
- Subjects
foetal biometry and doppler ,perinatal mortality ,small for gestation foetus ,Medicine - Abstract
Introduction: Perinatal mortality and morbidities constitute a burden on society and healthcare system. One of the major identifiable causes of these conditions in India is Low Birth Weight (LBW) and preterm births. Small for Gestational Age (SGA) infants account for almost 46.9% of LBW infants. They are prone to the morbidities of preterm birth and are the second major contributor to perinatal mortality. Recent studies have reported that higher screening performance for SGA can be achieved through ultrasonographic foetal biometry and Doppler studies during the third trimester. Aim: To stratify foetuses with Estimated Foetal Weight (EFW) below the 40th centile, as determined by obstetric ultrasound, into three categories (low, intermediate, and high-risk), and study the perinatal outcomes in each category. Materials and Methods: The present prospective cohort study was conducted in the Department of Obstetrics and Gynaecology at Vardhaman Mahavir Medical College and Safdarjung Hospital, New Delhi, India from November 2020 to April 2022. A total of 280 antenatal women, at a gestational period between 35 to 36+6 weeks with singleton pregnancies, were studied and based on the foetal biometry and Doppler parameters, women were classified into low (Group A), intermediate (Group B) and high risk (Group C) categories. Risk categorisation was based on EFW and Doppler indices. The low-risk group underwent an ultrasound Doppler scan after four weeks, the intermediate-risk group after two weeks, and the high-risk group was scanned weekly. The high-risk group was delivered at 39 weeks of gestation. Perinatal outcomes, neonatal weights, adverse neonatal outcomes {such as Neonatal Intensive Care Unit (NICU) admissions exceeding 48 hours}, stillbirths, and neonatal deaths were recorded. The Area under Curve (AUC) cut-off for EFW percentiles on ultrasonography was calculated as a predictor for SGA foetuses requiring NICU admissions. Concurrent admissions in the NICU of neonates delivered to unregistered pregnant mothers, who were not screened during the antenatal period, were also recorded. The Chi-square test was used to compare categorical data between groups. The receiver operating characteristic curve was used to determine the cut-off for foetal weight to predict NICU admission. A p-value of
- Published
- 2024
- Full Text
- View/download PDF
10. Surface engineering of nanoparticles anchored meso-macroporous silica heterostructure: An efficient adsorbent for DNA
- Author
-
S.K. Mehta, Rekha Bhar, and Rohini Kanwar
- Subjects
Thermogravimetric analysis ,Materials science ,organic chemicals ,fungi ,Nanoparticle ,02 engineering and technology ,Surface engineering ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,0104 chemical sciences ,Adsorption ,Chemical engineering ,Chemisorption ,Zeta potential ,General Materials Science ,Fourier transform infrared spectroscopy ,0210 nano-technology ,Mesoporous material - Abstract
The present article for the first time puts forth the adsorption of genomic deoxyribonucleic acid (DNA) onto the copper oxide nanoparticles impregnated meso-macroporous silica (MMS) framework and sets the stage for formulating MMS as carriers of nucleic acids. Prior to the adsorption of DNA, the silica surface was made compatible by aminosilanization of the MMS surface using aminopropyltriethoxysilane (APTES). The present methodology resulted in high-density amination of the MMS material as pointed out by the elemental and thermal gravimetric analysis. FTIR spectrum, FESEM micrograph, and zeta potential value confirmed the surface passivation of the MMS surface. Non-isothermal kinetic models validated that APTES modified composite was thermally stable. Mesopore ordering and the surface area of the functionalized material were estimated by small-angle X-ray scattering (SAXS) and N2 adsorption-desorption analysis respectively. Modified material offered us a convenient platform for adsorption-desorption of calf thymus-DNA (CT-DNA). Adsorption efficiency of the APTES grafted MMS for CT-DNA has been found as high as 95.96%. Adsorption isotherms affirmed monolayered chemisorption of CT-DNA on the APTES@MMS. APTES grafted MMS can act as a potent, reusable, economical, and highly efficient adsorbent for CT-DNA. In summary, this work highlights the mechanistic and kinetic aspects underlying the adsorption behavior of DNA onto the MMS framework.
- Published
- 2020
11. Exploring drying pattern of a sessile droplet of genomic DNA in the presence of hematite nanoparticles
- Author
-
Rekha Bhar, Gurpreet Kaur, and S.K. Mehta
- Subjects
Materials science ,Nanoparticle ,Infrared spectroscopy ,lcsh:Medicine ,Metal Nanoparticles ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,Ferric Compounds ,Fluorescence spectroscopy ,Article ,chemistry.chemical_compound ,Surface-Active Agents ,X-Ray Diffraction ,Spectroscopy, Fourier Transform Infrared ,Animals ,Fourier transform infrared spectroscopy ,Desiccation ,Particle Size ,Spectroscopy ,lcsh:Science ,Multidisciplinary ,lcsh:R ,DNA ,Hematite ,021001 nanoscience & nanotechnology ,0104 chemical sciences ,chemistry ,Chemical engineering ,Transmission electron microscopy ,visual_art ,visual_art.visual_art_medium ,lcsh:Q ,Cattle ,Microscopy, Polarization ,0210 nano-technology ,Iron oxide nanoparticles - Abstract
For the first time, drying pattern of a sessile droplet of genomic DNA, in the presence of hematite nanoparticles was sighted by polarizing optical microscopy (POM) in this research article. POM results indicated that only at an appreciably high concentration of hematite nanoparticles dried pattern of deoxyribonucleic acid from calf thymus (CT-DNA) was altered. Iron hybridized cetylpyridinium chloride was utilized for the preparation of iron oxide nanoparticles through hydrothermal method. Fourier transforms infrared spectroscopy (FTIR) and powder x-ray diffraction (PXRD) studies confirmed the formation of highly crystalline hematite i.e. α-Fe2O3 nanoparticles. Morphology of the synthesized nanoparticle was visualized by transmission electron microscope (TEM) and field emission scanning electron microscope (FESEM), which revealed that nanoparticles were rhombohedral in shape with a size of 45 ± 10 nm. Based upon all the findings, hydrothermal growth mechanism was also proposed having bilayer protection of surfactant around the nanoparticles. UV-Vis spectroscopy and fluorescence spectroscopy were explored to study the affinity of thus prepared nanoparticles towards calf thymus deoxyribonucleic acid (CT-DNA). The low value of binding constant calculated from the spectroscopy data confirmed the weak interaction between nanoparticles and the CT-DNA.
- Published
- 2018
12. Experimental validation of DNA interactions with nanoparticles derived from metal coupled amphiphiles
- Author
-
Gurpreet Kaur, S.K. Mehta, and Rekha Bhar
- Subjects
Circular dichroism ,Chemical Phenomena ,Nanoparticle ,Metal Nanoparticles ,02 engineering and technology ,Chemistry Techniques, Synthetic ,010402 general chemistry ,Microscopy, Atomic Force ,01 natural sciences ,Fluorescence spectroscopy ,Surface-Active Agents ,Dynamic light scattering ,Structural Biology ,Spectroscopy, Fourier Transform Infrared ,Fourier transform infrared spectroscopy ,Spectroscopy ,Molecular Biology ,Gel electrophoresis ,Chemistry ,technology, industry, and agriculture ,General Medicine ,DNA ,021001 nanoscience & nanotechnology ,Binding constant ,0104 chemical sciences ,Crystallography ,Models, Chemical ,Metals ,Thermodynamics ,0210 nano-technology ,Algorithms - Abstract
In the present report, a facile strategy for the synthesis of copper nanoparticles utilizing copper@cetylpyridinium chloride as the metal precursor in combination with vitamin C, was been developed. Synthesized nanoparticles (NPs) were well characterized through UV-Vis spectroscopy, dynamic light scattering (DLS), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, energy dispersive X-ray (EDX) spectroscopy, and powder X-ray diffraction (XRD). The as-obtained NPs were used for binding with deoxyribonucleic acid from calf thymus (CT-DNA). Binding potential of synthesized NPs towards DNA was checked by calculating apparent binding constant and various thermodynamic parameters, like ΔG, ΔH, ΔS and number of binding sites from UV-Vis, circular dichroism, and fluorescence spectroscopy. NPs lead to the change in conformation and mobility of the genomic DNA as notify by the circular dichroism and DNA gel electrophoresis. Synergistic effect of synthesized nanoparticles on DNA was also visualized by the tapping mode atomic force microscopy. Research findings of the present work are expected to have an impact on genomic activities.
- Published
- 2017
13. Intrauterine instillation of autologous platelet-rich plasma in infertile females with thin endometrium undergoing intrauterine insemination: an open-label randomized controlled trialAJOG Global Reports at a Glance
- Author
-
Divya Pandey, MS, Bindu Bajaj, MD, Garima Kapoor, MD, and Rekha Bharti, MD
- Subjects
Artificial insemination ,Sub-optimal endometrium thickness ,endometrial vascularity ,P-PRP ,chronic endometritis ,inadequate endometrium ,Gynecology and obstetrics ,RG1-991 - Abstract
BACKGROUND: Thin endometrium in infertile female patients has always been a clinical challenge for the treating reproductive physicians. OBJECTIVE: This study aimed to evaluate the effect of intrauterine instillation of autologous platelet-rich plasma on endometrial thickness and vascularity in infertile female patients with thin endometrium undergoing ovarian stimulation with intrauterine insemination. STUDY DESIGN: This prospective randomized control study included 120 women undergoing ovarian stimulation with intrauterine insemination, aged between 21 and 37 years, with persistent thin endometrium (
- Published
- 2023
- Full Text
- View/download PDF
14. Adiponectin to leptin ratio and its association with insulin resistance in women with polycystic ovarian syndrome
- Author
-
Pragya Mishra, Pratima Mittal, Anita Rani, Rekha Bharti, Varsha Agarwal, and Jyotsna Suri
- Subjects
adiponectin ,adiponectin to leptin ratio ,insulin resistance ,leptin ,pcos ,polycystic ovarian syndrome ,Diseases of the endocrine glands. Clinical endocrinology ,RC648-665 ,Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
Background: Adiponectin and leptin play a major role in metabolic homeostasis. Adiponectin to Leptin ratio can be used as an indicator of insulin resistance and a marker of polycystic ovarian syndrome (PCOS). The study was planned to compare serum adiponectin, leptin, and adiponectin to leptin ratio in age and BMI matched women with and without PCOS and to find out the association of adiponectin to leptin ratio with Insulin resistance in these women. Methods: It was a cross-sectional study done in the Gynecology outpatient clinic in a tertiary care center. A total of 120 women, 60 with PCOS and 60 age and BMI matched women without PCOS, who presented in the clinic after the index cases were enrolled and tested for serum adiponectin, leptin, and insulin sensitivity. The main outcome measures were serum levels of adiponectin, leptin, adiponectin to leptin ratio, oral glucose tolerance test, serum insulin and HOMA-IR. Results: PCOS women had lower serum Adiponectin, higher serum Leptin level and lower Adiponectin to Leptin ratio compared to non PCOS women, 2.15 ± 3.07 ng/ml vs 10.7 ± 27.91 ng/ml, P < 0.0001; 24.25 ± 16.5 ng/ml vs 13.89 ± 11.19 ng/ml, P = 0.0003 and 0.15 ± 0.24 vs 3.03 ± 15.04, P < 0.0001, respectively. Plasma glucose 2 hours after 75 gm glucose and serum Insulin was significantly increased in PCOS women (108.78 ± 10.22 mg/dl vs 100.18 ± 4.89 mg/dl, P = 0.001 and 5.7 ± 9.53 μU/ml vs 3.02 ± 5.34 μU/ml, P = 0.02, respectively). The mean values of fasting plasma glucose and HOMA-IR were comparable in both groups, P = 0.145, P = 0.719, respectively. There was no significant association of A/L Ratio with BMI, plasma glucose 2 hours after 75 gm glucose, serum Insulin and HOMA-IR, in these women, r = -0.074, P = 0.5754; r = -0.203, P = 0.12; r = -0.018, P = 0.8915; and r = -0.041, P = 0.757, respectively. Conclusion: Adiponectin to leptin ratio is significantly reduced in women with PCOS but has no association with insulin resistance.
- Published
- 2022
- Full Text
- View/download PDF
15. Impact of WHO Labor Care Guide on reducing cesarean sections at a tertiary center: an open-label randomized controlled trialAJOG Global Reports at a Glance
- Author
-
Divya Pandey, MS, Rekha Bharti, MD, Anjali Dabral, MD, and Zeba Khanam, MD
- Subjects
duration of labor ,Labor Care Guide ,labor monitoring ,reducing primary cesarean delivery rate ,World Health Organization–modified partograph ,Gynecology and obstetrics ,RG1-991 - Abstract
BACKGROUND: The World Health Organization Labor Care Guide was introduced in December 2020 to implement World Health Organization (WHO) guidelines on intrapartum care for a positive childbirth experience. OBJECTIVE: This study aimed to determine the effect of the WHO Labor Care Guide on labor outcomes, especially in reducing primary cesarean deliveries, and its acceptability by healthcare providers. STUDY DESIGN: This open-label randomized control trial was conducted from September 2021 to December 2021 on 280 low-risk antenatal women admitted for delivery at a busy tertiary care institute in North India. After informed consent, women were allocated into the study and control groups. Labor monitoring was performed using the WHO Labor Care Guide in the study group and the World Health Organization–modified partograph in the control group. Women who had a cesarean delivery in the latent phase of labor were excluded from the study. The primary outcome was mode of delivery, whereas the secondary outcomes were duration of active labor, maternal complications (postpartum hemorrhage and puerperal sepsis), duration of hospital stay, Apgar score at 5 minutes, and neonatal intensive care unit admission. The labor outcomes in both groups were compared. In the study group, the acceptability, difficulty, and satisfaction levels of the users were assessed using a 5-point Likert scale. The “learning curve” for the use of the Labor Care Guide (LCG) was determined. SPSS software (version 21.0; IBM Corporation, Chicago, IL) was used for statistical analysis. RESULTS: After excluding women who underwent cesarean delivery in the latent phase, 136 women in the study group and 135 women in the control group were observed for labor outcomes. The cesarean delivery rate was 1.5% in the study group vs 17.8% in the control group (P=.0001). The duration of the active phase of labor was significantly shorter in the study group than in the control group (P
- Published
- 2022
- Full Text
- View/download PDF
16. The Vaginal Microbial Signatures of Preterm Birth Delivery in Indian Women
- Author
-
Shakti Kumar, Naina Kumari, Daizee Talukdar, Akansha Kothidar, Mousumi Sarkar, Ojasvi Mehta, Pallavi Kshetrapal, Nitya Wadhwa, Ramachandran Thiruvengadam, Bapu Koundinya Desiraju, G. Balakrish Nair, Shinjini Bhatnagar, Souvik Mukherjee, Bhabatosh Das, GARBH-Ini Study Group, Vineeta Bal, Sumit Misra, Uma Chandra Mouli Natchu, Satyajit Rath, Kanika Sachdeva, Dharmendra Sharma, Amanpreet Singh, Shailaja Sopory, Arindam Maitra, Partha P. Majumder, Tushar K. Maiti, Monika Bahl, Shubra Bansal, Umesh Mehta, Sunita Sharma, Brahmdeep Sindhu, Sugandha Arya, Rekha Bharti, Harish Chellani, Pratima Mittal, Anju Garg, Siddharth Ramji, Ashok Khurana, Reva Tripathi, Yashdeep Gupta, Smriti Hari, Nikhil Tandon, Rakesh Gupta, Dinakar M. Salunke, and G Balakrish Nair
- Subjects
vaginal microbiota ,microbial ecology ,Lactobacillus ,preterm birth ,16S rRNA gene sequencing ,Microbiology ,QR1-502 - Abstract
BackgroundThe incidence of preterm birth (PTB) in India is around 13%. Specific bacterial communities or individual taxon living in the vaginal milieu of pregnant women is a potential risk factor for PTB and may play an important role in its pathophysiology. Besides, bacterial taxa associated with PTB vary across populations.ObjectiveConduct a comparative analysis of vaginal microbiome composition and microbial genomic repertoires of women who enrolled in the Interdisciplinary Group for Advanced Research on Birth Outcomes – A DBT India Initiative (GARBH-Ini) pregnancy cohort to identify bacterial taxa associated with term birth (TB) and PTB in Indian women.MethodsVaginal swabs were collected during all three trimesters from 38 pregnant Indian women who delivered spontaneous term (n=20) and preterm (n=18) neonates. Paired-end sequencing of V3-V4 region of 16S rRNA gene was performed using the metagenomic DNA isolated from vaginal swabs (n=115). Whole genome sequencing of bacterial species associated with birth outcomes was carried out by shotgun method. Lactobacillus species were grown anaerobically in the De Man, Rogosa and Sharpe (MRS) agar culture medium for isolation of genomic DNA and whole genome sequencing.ResultsVaginal microbiome of both term and preterm samples reveals similar alpha diversity indices. However, significantly higher abundance of Lactobacillus iners (p-value All_Trimesters
- Published
- 2021
- Full Text
- View/download PDF
17. Critical Level of Alanine Transaminase to Predict Foetomaternal Outcome in Intrahepatic Cholestasis of Pregnancy: A Case-control Study
- Author
-
Nidhi Ahuja, Anjali Dabral, Sheeba Marwah, Rekha Bharti, Deepti Pachauri, and Jyotsna Suri
- Subjects
enterohepatic circulation ,foetal morbidity ,meconium staining ,mortality ,pruritis ,serum transaminase ,Medicine - Abstract
Introduction: Intrahepatic Cholestasis of Pregnancy (IHCP) is a disorder of the second and third trimester causing pruritis without a rash in the women. To avoid the adversities, early delivery is indicated before serum bile acids levels of >40 µmol/L is reached. In the settings where bile acid testing is not available, serum transaminases can be used for diagnosis and management of IHCP. Aim: To find out value of Alanine Transaminase (ALT) for the prediction of adverse outcomes. Materials and Methods: This case-control study was carried out from October 2018 to March 2020, enrolled 75 singleton women with IHCP and 75 controls in their third trimester. The diagnosis was based on the presence of pruritis without an identifiable dermatological cause along with raised serum transaminases. Serum ALT levels and the foetomaternal outcomes were noted. Statistical analysis was done using Statistical Package for Social Sciences (SPSS) version 21.0. Mann-Whitney test, Chi-square test and Fisher’s exact test were used to compare all variables. The p-value of 133 U/L is predictive of adverse foetal outcome, therefore, termination of pregnancy can be advocated above this level.
- Published
- 2021
- Full Text
- View/download PDF
18. Evaluation of reliability of self-collected vaginal swabs over physician-collected samples for diagnosis of bacterial vaginosis, candidiasis and trichomoniasis, in a resource-limited setting: a cross-sectional study in India
- Author
-
Zarine Khan, Aradhana Bhargava, Pratima Mittal, Rekha Bharti, Poonam Puri, Niti Khunger, and Manju Bala
- Subjects
Medicine - Abstract
Objectives Self-collected vaginal swabs can facilitate diagnosis of vaginal discharge (VD) in resource-limited settings, provided reliability of the method is established. The aim of this study was to evaluate the concordance between self-collected and physician-collected vaginal swabs for aetiological diagnosis of VD and to determine the prevalence of bacterial vaginosis (BV), vulvovaginal candidiasis (VVC) and trichomonas vaginitis (TV).Methods A total of 550 females (median age: 32 years; range: 18–45 years) attending two sexually transmitted infection/reproductive tract infection (STI/RTI) clinics with VD from January 2015 to May 2016 were included in the study after obtaining written informed consent. Swabs were self-collected by patients after instructions and subsequently by a physician under speculum examination. Samples were processed for standard bedside tests, Gram staining, wet mount and culture (gold standard) according to the national guidelines. Concordance between the two methods was determined by the Cohen’s kappa value.Results BV, VVC and TV were diagnosed in 79 (14.4%), 144 (26.2%) and 3 (0.5%) patients, respectively. VVC coexisted with BV in 58 (10.5%) patients. There was no coinfection of TV with BV or VVC. Candida albicans was isolated in 84 (58.3%) VVC cases. Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of self-collected swabs for diagnosing BV was 91.1%, 100%, 100% and 98.5%, respectively, while for the C. albicans VVC and TV, sensitivity, specificity, PPV and NPV all were 100% as compared with physician-collected swabs. Highly concordant results were obtained between two methods by the Kappa values of 0.95 (BV), 0.99 (VVC) and 1.0 (TV).Conclusion The comparative performance of self-collected and physician-collected vaginal swabs establishes self-collection of samples for BV, VVC and TV as a viable alternative tool in the management of STIs/RTIs, especially in peripheral and resource-constrained settings. This would be effective in implementing the diagnostic approaches for STIs/RTIs in community-based surveillance studies at national or regional level and therefore strengthening the National STI/RTI Control Programme.
- Published
- 2019
- Full Text
- View/download PDF
19. Risk Assessment for Psychological Disorders in Postmenopausal Women
- Author
-
Anuradha Tamaria, Rekha Bharti, Manjula Sharma, Rupali Dewan, Garima Kapoor, Abha Aggarwal, Achla Batra, and Aruna Batra
- Subjects
postmenopausal women ,psychological disorders ,depression ,risk assessment ,Medicine - Abstract
Introduction: Psychological symptoms are common & bothersome in post menopausal women. Hence, screening these women for risk factors for psychological disorders is an important measure to improve their health. Objective: To study the risk assessment for psychological disorders in postmenopausal women Material & Methods: This was a prospective and observational study conducted in the Department of Obstetrics and Gynecology of a North Indian tertiary care hospital. It included a cross-section of 200 postmenopausal women attending gynecology OPD and menopausal clinic. Result: Psychological symptoms were present in 32% postmenopausal women while sleep disturbance and decreased concentration were reported by nearly 34%. Irritability, nervousness and depression were the presenting complaints in 31.5%, 28.5% and 23.5% women respectively. Mild depression was present in 41.5%, whereas 3% women suffered from clinical (moderate to severe) depression. Depression was significantly associated with vasomotor symptoms (p=0.000), past history of depression (p=0.048) and psychosocial stressors (p=0.000). Conclusion: Women during postmenopausal years are at increased risk of psychological disorders; hence assessment of mental health and address of related issues should be an integral part of comprehensive evaluation of these women.
- Published
- 2013
- Full Text
- View/download PDF
20. Evaluation of craniofacial morphology in patients with obstructive sleep apnea using lateral cephalometry and dynamic MRI
- Author
-
Rekha Bharadwaj, A Ravikumar, and N R Krishnaswamy
- Subjects
Dynamic magnetic resonance imaging ,lateral cephalometry ,obstructive sleep apnea ,polysomnography ,retopalatal obstruction ,retroglossal obstruction ,Dentistry ,RK1-715 - Abstract
Context: Obstructive sleep apnea (OSA) is a potentially life-threatening disorder, characterized by repeated collapse of the upper airway during sleep with cessation of breathing. The altered mouth breathing produces morphological changes in craniofacial region. Aim: This study was designed to compare and validate the craniofacial morphological characteristics in patients with OSA using lateral cephalometry and to investigate the dentofacial characteristics of patients with OSA with respect to the obstructive sites determined by dynamic magnetic resonance imaging (MRI) to more accurately clarify the pathophysiological features. Materials and Methods: 10 patients with OSA were divided into two groups of five each according to their obstructive site determined by dynamic MRI. (1) Obstruction at the retropalatal and retroglossal region (Rp + Rg group) and (2) obstruction at the retropalatal region (Rp group). Lateral cephalogram both in upright and supine position was taken for all the subjects. In addition, dynamic MRI was performed to identify the sites of obstruction of the upper airway. Statistical analysis used: Independent t-test was performed to evaluate the significant difference in the upright cephalometric variables between the study and control group and between the two groups. The changes in skeletal and soft tissue parameters with change in posture was assessed within the study and control group by paired t test. P value of ≤0.05 was considered as statistically significant. Results: The study indicated that the first group of patients with both retropalatal and retroglossal obstruction showed signs of skeletal discrepancy that predisposed to obstruction at the retroglossal level and the soft tissue components like the soft palate and tongue that contributed to retropalatal obstruction. However, the second group of patients with only retropalatal obstruction had primarily soft tissue components associated with increased BMI that contributed to retropalatal obstruction. Conclusion: Evaluation of craniofacial morphology in OSA patients is bound to help the concerned specialist in recognizing the morphological changes induced by altered sleep pattern so as to provide the appropriate treatment.
- Published
- 2011
- Full Text
- View/download PDF
21. Feto-maternal Outcome Using New Screening Criteria of Serum TSH for Diagnosing Hypothyroidism in Pregnancy
- Author
-
Deeksha Joshi, Rupali Dewan, Rekha Bharti, Karishma Thariani, Aanchal Sablok, Manjula Sharma, Krishna Biswas, and Aruna Batra
- Subjects
endocrinological disorders ,reference values ,screening in pregnancy ,serum tsh ,Medicine - Abstract
Introduction: Evidence suggests that by using the classical non pregnant reference range for serum TSH (STSH), one might miss hypothyroidism in pregnancy. Therefore, upper normal cut off value of S TSH should be taken as 3mIU/L, for diagnosing hypothyroidism in pregnancy. Materials and Methods: This study was a cross sectional study, carried out in the Department of Obstetrics and Gynaecology of a tertiary care hospital, in collaboration with the Department of Endocrinology. Pregnant women with ≤ 20 weeks gestation, attending antenatal OPD from December 2010 to January 2012 were included in the study. On the basis of S TSH level, women were divided into Study Group with S TSH level between 3.1 to 6.2 mIU/L, (new range to be studied) and an equal number of age and parity matched Control Group with S TSH levels between 0.4 to 3 mIU/L. The maternal and fetal outcomes were compared between study and control groups. Results: During the study period, a total of 66 women had S TSH between 3.1-6.2 mIU/L. Maternal and fetal outcomes in both the groups were comparable. There was no difference in the mode of delivery between study and control groups. Conclusion: The lower S TSH cut off recommended for diagnosing hypothyroidism in pregnancy may not be applicable to pregnant Indian women.
- Published
- 2015
- Full Text
- View/download PDF
22. To Evaluate the Effect of Perceived Stress on Menstrual Function
- Author
-
Shahida Nagma, Garima Kapoor, Rekha Bharti, Achla Batra, Aruna Batra, Abha Aggarwal, and Aanchal Sablok
- Subjects
dysmenorrhoea ,irregular menstrual cycle ,menstrual irregularities ,Medicine - Abstract
Introduction: Menstrual irregularities affect 2-5% of childbearing women, a number that is considerably higher among females under constant stress during a cycle. Aim: To study the effect of perceived stress on cycle length, regularity and dysmenorrhoea. Materials and Methods: A cross-sectional study was conducted on 100 female undergraduate students of a medical college. A questionnaire along with the Perceived Stress Scale (PSS) and Pictorial Blood Assessment Chart (PBAC) was provided to the students. The menstrual pattern was then correlated with the PSS using the chi- square test and the Fisher’s Exact test for statistical analysis. Observations and Results: Out of the 100 undergraduate medical students, 30 students had a PSS score >20 while 70 had a score ≤20. An association was established between high stress levels (PSS >20) and menstrual irregularity. No association was found in students with PSS >20 with hypomenorrhoea, menorrhagia, dysmenorrhoea, long cycle length and short cycle length. Conclusion: High stress levels (PSS >20) was associated with only menstrual irregularities and not with duration, amount of flow or dysmenorrhoea. Hence, other causes should be looked for in young women complaining of menstrual problems before stress is assumed to be the cause.
- Published
- 2015
- Full Text
- View/download PDF
23. Clinical Outcome of Postplacental Copper T 380A Insertion in Women Delivering by Caesarean Section
- Author
-
Sunita Singal, Rekha Bharti, Rupali Dewan, Divya, Anjali Dabral, Achla Batra, Manjula Sharma, and Pratima Mittal
- Subjects
intrauterine device ,intracaesarean insertion ,postplacental insertion ,Medicine - Abstract
Introduction: Short interconception period after caesarean section and its associated risk of increased morbidity, mortality and surgical interventions could be avoided by postplacental IUCD insertion during the procedure. Despite the safety reports on intracaesarean IUCD insertion, obstetricians are still hesitant to extend the benefit of this long acting reversible contraception to women undergoing operative delivery. Objective: To study the clinical outcome (safety, efficacy, expulsion and continuation rates) of postplacental Copper T 380A insertion in primiparous women undergoing caesarean section. Materials and Methods: This study was a prospective observational study, carried out in the Department of Obstetrics and Gynaecology, Safdarjung hospital, which is a tertiary care hospital of Northern India. Primiparous women who delivered by caesarean section over a period of six months (July 2012 to December 2012), willing for postplacental intracaesarean IUCD insertion, and willing to comply with the study protocol, were recruited for the study. All these subjects fulfilled the WHO Standard Medical Criteria for PPIUCD insertion; follow up visits were scheduled at 1, 3, 6 and 12 months. Results: A total of 300 primiparous women underwent postpartum intracaesarean insertion of Copper T 380A. The mean age of women included in the study was 23.12 ± 2.42 years. Most common postinsertion complication observed in the immediate postoperative period was febrile morbidity (2%). Majority of women (94.33%) had hospital stay of less than 4 days. The common adverse events observed during follow-up of 12 months were menstrual complaints, excessive vaginal discharge and persistent pelvic pain. At the end of one year, there were 16 expulsions, 21 removals, and 2 pregnancies with gross cumulative expulsion, removal, failure and continuation rates of 5.33%, 7%, 0.67% and 91%, respectively. Conclusion: Postplacental intracaesarean Copper T 380A insertion in primiparous women is a safe and effective method of reversible contraception, with low expulsion and high continuation rates.
- Published
- 2014
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.