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Arya P, Yadav G, Singh P, Ghuman NK, Sharma C, Gothwal M, Kathuria P. Tranexamic Acid, a Trivial in Preventing Postpartum Blood Loss in Vaginal Delivery- a Double Blinded, Randomized Controlled Trial. Am J Obstet Gynecol 2023:S0002-9378(23)02192-0. [PMID: 38151222 DOI: 10.1016/j.ajog.2023.12.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 12/08/2023] [Accepted: 12/19/2023] [Indexed: 12/29/2023]
Abstract
OBJECTIVE To assess the effect of intravenous tranexamic acid (1 g) in reducing blood loss during the 3rd and 4th stages of labor following vaginal delivery, in addition to active management of the third stage of labor. METHODS This double-blinded randomized controlled trial included 650 women with singleton pregnancies of ≥ 34 weeks gestation undergoing vaginal delivery. Eligible women were randomly assigned to receive 1 g of tranexamic acid or placebo intravenously in addition to active management of the third stage of labor. Calibrated blood collection bags were used to measure postpartum blood loss during the 3rd and 4th stages of labor. RESULTS Out of 886 expectant women who were approached, 650 instances that met the study's inclusion criteria were enrolled and a total of 320 women in group A and 321 in group B were analyzed. Maternal characteristics did not differ between the two groups. Mean blood loss did not differ significantly among the intervention and placebo groups (378.5±261.2 ml vs. 383±258.9 ml; p = 0.93). The incidence of primary postpartum hemorrhage was comparable in both groups (Group A: 15.9%, Group B: 15.3%, p = 0.814). The median fall in haemoglobin within 12-24 hours following delivery in both groups was comparable (group A: 0.60 g% with interquartile range (IQR) 0.4-0.9 g %; group B: 0.6 g% with IQR 0.4-0.8 g %; p = 0.95). The most common adverse effect reported was dizziness. No thromboembolic events were reported at the follow-up of three months in both groups. CONCLUSION Prophylactic use of tranexamic acid in addition to active management of the third stage of labor does not help further reduce postpartum blood loss following vaginal delivery.
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Affiliation(s)
- Pratibha Arya
- Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, Basni, Jodhpur, India, 342005
| | - Garima Yadav
- Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, Basni, Jodhpur, India, 342005.
| | - Pratibha Singh
- Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, Basni, Jodhpur, India, 342005
| | - Navdeep Kaur Ghuman
- Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, Basni, Jodhpur, India, 342005
| | - Charu Sharma
- Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, Basni, Jodhpur, India, 342005
| | - Meenakshi Gothwal
- Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, Basni, Jodhpur, India, 342005
| | - Priyanka Kathuria
- Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, Basni, Jodhpur, India, 342005
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Yedase GS, Venugopal S, Arya P, Yatham VR. Catalyst‐free Hantzsch ester‐mediated Organic Transformations Driven by Visible light. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Girish Suresh Yedase
- IISER-TVM: Indian Institute of Science Education Research Thiruvananthapuram School of Chemistry INDIA
| | - Sreelakshmi Venugopal
- IISER-TVM: Indian Institute of Science Education Research Thiruvananthapuram School of Chemistry INDIA
| | - P Arya
- IISER-TVM: Indian Institute of Science Education Research Thiruvananthapuram School of Chemistry INDIA
| | - Veera Reddy Yatham
- IISER-TVM: Indian Institute of Science Education Research Thiruvananthapuram School of Chemistry Thiruvananthapuram 695551 Thiruvananthapuram INDIA
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Hema, Bhatt T, Arya P, Dhondiyal CC, Tiwari H, Devlal K. Structural and vibrational study of molecular interaction in a ternary liquid mixture of benzylamine, ethanol and benzene. Struct Chem 2021. [DOI: 10.1007/s11224-021-01832-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Hema, Bhatt T, Pant T, Dhondiyal CC, Rana M, Chowdhury P, Joshi GC, Arya P, Tiwari H. Computational study of the intermolecular interactions and their effect on the UV-visible spectra of the ternary liquid mixture of benzene, ethanol and propylene glycol. J Mol Model 2020; 26:268. [PMID: 32926296 DOI: 10.1007/s00894-020-04533-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 09/03/2020] [Indexed: 11/30/2022]
Abstract
Quantum chemical calculations are well-equipped to provide answers to the questions regarding the different aspects of intermolecular interactions. We investigate the benzene, ethanol and 1,2 propanediol ternary mixture with theoretical as well as experimental UV-Vis spectroscopy. An extensive theoretical study on the molecular structure and UV-Vis spectral analysis was undertaken using density functional theory (DFT) method. Structural parameter analysis and the HOMO-LUMO (highest occupied molecular orbital-lowest unoccupied molecular orbital) energy gap help to describe the possible interaction between molecules in dimer and in combination. Interaction energy has been calculated from topological study. Time-dependent density functional theory (TDDFT) calculations on dimer/cluster in gas phase help to understand the effect of the molecular interaction on the overall spectral shift and related intensity variation. Our results show that in the ternary mixture, the interaction energies of the interactions are π-π interaction: 0.52-2.57 kcal/mol, Hp-π interaction: 1.15 kcal/mol and H-bonding: 2.49 to 4.46 kcal/mol. The π-π interaction and H-bonding cause red shift in absorption spectra while Hp-π interaction causes blue shift. In the ternary mixture, the strength of different kinds of interaction depends on the concentration, and as each interaction has its own effect on spectral shift, the overall experimental spectra get broader and distorted from the Gaussian shape.
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Affiliation(s)
- Hema
- Department of Physics, M. B. Govt. P. G. College, Haldwani, Uttarakhand, India
| | - Tara Bhatt
- Department of Physics, M. B. Govt. P. G. College, Haldwani, Uttarakhand, India.
| | - Tarun Pant
- Department of Physics, M. B. Govt. P. G. College, Haldwani, Uttarakhand, India
| | - Charu Ch Dhondiyal
- Department of Physics, M. B. Govt. P. G. College, Haldwani, Uttarakhand, India
| | - Meenakshi Rana
- Uttarakhand Open University, Haldwani, Uttarakhand, India
| | - Papia Chowdhury
- Jaypee Institute of Information Technology, Noida, Uttar Pradesh, India
| | - G C Joshi
- G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India
| | - Pratibha Arya
- Department of Physics, M. B. Govt. P. G. College, Haldwani, Uttarakhand, India
| | - Himani Tiwari
- Department of Physics, M. B. Govt. P. G. College, Haldwani, Uttarakhand, India
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Abstract
The present study was designed to investigate the effect of embelin in metabolic endotoxemia (ME) mediated inflammation and associated obesity in high fat diet (HFD)-fed C57BL/6 mice. The molecular docking of embelin confirms its binding with the toll-like receptor-4 (TLR-4). In vivo study, mice were treated with HFD for 8 weeks to induce ME mediated inflammation and associated obesity. Further, mice were treated with embelin (50 and 100 mg/kg/day, p.o.) and orlistat (10 mg/kg/day, p.o.) from 5th to 8th week along with HFD to improve associated changes. After 8 weeks, mice were euthanized and assessed for body weight, body mass index (BMI), fat pad weights (mesenteric, retroperitoneal, and epididymal), intestinal permeability, TLR-4, tumor necrosis factor-α, interleukin-6, lipopolysaccharide, and serum lipid levels followed by histopathological analysis of liver and adipose tissues. Embelin significantly decreased the body weight, BMI, serum lipid levels, ME, and inflammation manifested by above parameters. Further, results of histopathological study showed that embelin restored the vacuolization, inflammation, one side shifting of nucleus in liver tissue, and decreased adipocyte cells size in adipose tissue in HFD-fed mice. Thus, our findings provide the strong evidence first time that embelin could modulate ME, mediate inflammation, and consequently reduce body weight gain, BMI, and serum lipid levels in HFD-fed mice.
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Affiliation(s)
- P Bansal
- Department of Pharmacology, School of Pharmaceutical Education and Research (SPER), 28848Jamia Hamdard, New Delhi, India
| | - U Bhandari
- Department of Pharmacology, School of Pharmaceutical Education and Research (SPER), 28848Jamia Hamdard, New Delhi, India
| | - K Sharma
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research (SPER), 28848Jamia Hamdard, New Delhi, India
| | - P Arya
- Department of Pharmacology, School of Pharmaceutical Education and Research (SPER), 28848Jamia Hamdard, New Delhi, India
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Arya P, Kaithwas G. Combined therapy of gabapentin with pantoprazole exhibited better protective action against forestomach and pylorus ligation-induced gastric esophageal reflux disease in albino Wistar rats. Hum Exp Toxicol 2019; 39:492-499. [PMID: 31868530 DOI: 10.1177/0960327119893409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The current study was undertaken to evaluate the effect of combined therapy of gabapentin and pantoprazole against forestomach and pylorus ligation-induced gastric esophageal reflux disease (GERD) in albino Wistar rats. Rats were randomly divided into five groups, each group consisting of six rats, fasted for 24 h, underwent forestomach and pylorus ligation, received normal saline (3 ml/kg, p.o.), normal control, toxic control, pantoprazole (30 mg/kg, p.o.), gabapentin (50 mg/kg, p.o.), or their combination. After 10 h, animals were killed by cervical dislocation and evaluated for pH of gastric content, volume of gastric juice, total acidity, and esophagitis index. Esophageal tissues were further analyzed for biochemical parameters such as superoxide dismutase, glutathione, catalase, thiobarbituric acid reactive substances, and protein carbonyl, and scanning electron microscopy (SEM) and histopathology were used for morphological evaluation. The results show the combination therapy of gabapentin and pantoprazole significantly inhibited the volume of gastric juice and total acidity esophagitis index and significantly increased the pH of gastric juice. Treatment with gabapentin and pantoprazole exhibited maximum antioxidant effect in comparison with monotherapy. Marked protection and restoration of normal morphology was observed through SEM and histopathology in the combination therapy as compared to monotherapy. Finally, it was concluded that combination therapy of pantoprazole and gabapentin has beneficial effect against GERD.
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Affiliation(s)
- P Arya
- Department of Pharmaceutical Sciences, School of Biosciences and Biotechnology, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, Uttar Pradesh, India
| | - G Kaithwas
- Department of Pharmaceutical Sciences, School of Biosciences and Biotechnology, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, Uttar Pradesh, India
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Arya P, Pradhan P, Paria A, Sharma R, Verma DK, Ravindra, Rathore G, Sood N. Ontogeny and tissue-specific expression of immune-relevant genes in Catla catla (Hamilton). Gene Expr Patterns 2019; 34:119071. [DOI: 10.1016/j.gep.2019.119071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/31/2019] [Accepted: 09/11/2019] [Indexed: 01/29/2023]
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Pradhan PK, Paria A, Pande V, Verma DK, Arya P, Rathore G, Sood N. Expression of immune genes in Indian major carp, Catla catla challenged with Flavobacterium columnare. Fish Shellfish Immunol 2019; 94:599-606. [PMID: 31542493 DOI: 10.1016/j.fsi.2019.09.052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 09/14/2019] [Accepted: 09/18/2019] [Indexed: 06/10/2023]
Abstract
Columnaris disease, caused by Flavobacterium columnare, is one of the important bacterial diseases responsible for large-scale mortalities in numerous freshwater fishes globally. This disease can cause up to 100% mortality within 24 h of infection and is considered to be a cause of concern for aquaculture industry. Despite being a serious disease, scarce information is available regarding host-pathogen interaction, particularly the modulation of different immune genes in response to F. columnare infection. Therefore, in the present study, an attempt has been made to study expression of important immune regulatory genes, namely IL-1β, iNOS, INF-γ, IL-10, TGF-β, C3, MHC-I and MHC-II in gills and kidney of Catla catla following experimental infection with F. columnare. The expression analysis of immune genes revealed that transcript levels of IL-1β, iNOS, IL-10, TGF-β, C3 and MHC-I were significantly up-regulated (p < 0.05) in both the organs of the infected catla. IFN-γ and MHC-II were up-regulated in gills of infected catla whereas, both the genes showed down-regulation in kidney. The results indicate that important immune genes of C. catla are modulated following infection with F. columnare. The knowledge thus generated will strengthen the understanding of molecular pathogenesis of F. columnare in Indian major carp C. catla.
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Affiliation(s)
- P K Pradhan
- ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P.O. Dilkusha, Lucknow, 226002, Uttar Pradesh, India.
| | - Anutosh Paria
- ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P.O. Dilkusha, Lucknow, 226002, Uttar Pradesh, India
| | - Veena Pande
- Department of Biotechnology, Kumaun University, Nainital, 263136, Uttarakhand, India
| | - Dev K Verma
- ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P.O. Dilkusha, Lucknow, 226002, Uttar Pradesh, India
| | - P Arya
- ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P.O. Dilkusha, Lucknow, 226002, Uttar Pradesh, India
| | - G Rathore
- ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P.O. Dilkusha, Lucknow, 226002, Uttar Pradesh, India
| | - N Sood
- ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P.O. Dilkusha, Lucknow, 226002, Uttar Pradesh, India.
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To JK, Arya P, Barros Sierra S. 2988 Patient Perceptions of Laparoscopic and Robotic Gynecologic Surgery. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Seetharaj R, Vandana P, Arya P, Mathew S. Dependence of solvents, pH, molar ratio and temperature in tuning metal organic framework architecture. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.01.003] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Kajal P, Bhutani N, Tyagi N, Arya P. Trichobezoar with and without Rapunzel syndrome in paediatric population: A case series from a tertiary care centre of Northern India. Int J Surg Case Rep 2017; 40:23-26. [PMID: 28918296 PMCID: PMC5602516 DOI: 10.1016/j.ijscr.2017.08.060] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 08/22/2017] [Accepted: 08/23/2017] [Indexed: 01/06/2023] Open
Abstract
INTRODUCTION Trichobezoars are concretions formed by accumulation of hair in stomach. Usually, trichobezoar is confined to the stomach, but rarely it may extend from the stomach to the small intestine and even colon. This is an unusual form called Rapunzel syndrome. Our experience with this rare entity of Rapunzel syndrome and interesting entity of trichobezoar is being presented with review of literature. PRESENTATION OF CASES We, at our institute, encountered four cases of trichobezoar in last five years, out of which two were found to be of Rapunzel syndrome. All of these cases were managed successfully by open surgical intervention in view of the very large size of the mass in all the cases. DISCUSSION The clinical presentation is highly variable ranging from asymptomatic cases diagnosed incidently to serious gastrointestinal symptoms and complications. Cases of trichobezoar have been reported in literature very infrequently but Rapunzel syndrome is extremely rare and less than 50 cases have been reported in medical literature till date. CONCLUSION Trichobezoar leading to Rapunzel syndrome is an extremely rare entity. The clinical presentation is usually vague and non-specific. Treatment is mainly surgical because of delayed presentation in majority of the cases. Psychiatric illness is the usual association.
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Affiliation(s)
- Pradeep Kajal
- Deptt. of Pediatric Surgery, PGIMS, Rohtak, Haryana, India.
| | | | | | - Pratibha Arya
- Deptt. of Pediatrics, PGIMS, Rohtak, Haryana, India.
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Mucumbitsi J, Bulwer B, Mutesa L, Ndahindwa V, Semakula M, Rusingiza E, Arya P, Breakey S, Patton-Bolman C, Kaplan EL. Prevalence of rheumatic valvular heart disease in Rwandan school children: echocardiographic evaluation using the World Heart Federation criteria. Cardiovasc J Afr 2017; 28:285-292. [PMID: 28252675 PMCID: PMC5730679 DOI: 10.5830/cvja-2017-007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 01/11/2017] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Rheumatic fever (RF) and rheumatic valvular heart disease (RHD) remain important medical, surgical and public health concerns in many parts of the world, especially in sub-Saharan Africa. However, there are no published data from Rwanda. We performed a RHD prevalence study in a randomly selected sample of Rwandan school children using the 2012 World Heart Federation (WHF) criteria. METHODS Echocardiographic assessment of 2 501 Rwandan school children from 10 schools in the Gasabo district near Kigali was carried out. Resulting data were evaluated by four experienced echocardiographers. Statistical analyses were carried out by statisticians. RESULTS RHD prevalence was 6.8/1 000 children examined (95% CI: 4.2/1 000-10.9/1 000). Seventeen met WHF criteria for RHD, 13 fulfilled criteria for 'borderline' RHD and four were 'definite' RHD. None of these 17 had been previously identified. CONCLUSION These data indicate a significant burden of RHD in Rwanda and support a need for defined public health RF control programmes in children there.
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Affiliation(s)
- J Mucumbitsi
- Rwandan Heart Foundation and Department of Pediatrics, King Faisal Hospital, Kigali, Rwanda
| | - B Bulwer
- Noninvasive Cardiovascular Research, Cardiovascular Division, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - L Mutesa
- College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda
| | - V Ndahindwa
- School of Public Health, College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda
| | - M Semakula
- Rwanda Biomedical Centre, Kigali, Rwanda; Interuniversity Institute for Biostatistical and Statistical Bioinformatics, University of Hasselt, Belgium
| | - E Rusingiza
- School of Medicine and Pharmacy, University of Rwanda, Kigali, Rwanda
| | - P Arya
- Department of Pediatric Cardiology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - S Breakey
- Massachusetts General Hospital, Institute of Health Professions, Boston, Massachusetts, USA
| | | | - E L Kaplan
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis, Minnesota, USA.
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Patel SK, Jackson L, Warren AY, Arya P, Shaw RW, Khan RN. A role for two-pore potassium (K2P) channels in endometrial epithelial function. J Cell Mol Med 2013; 17:134-46. [PMID: 23305490 PMCID: PMC3823143 DOI: 10.1111/j.1582-4934.2012.01656.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Accepted: 10/15/2012] [Indexed: 11/20/2022] Open
Abstract
The human endometrial epithelium is pivotal to menstrual cycle progression, implantation and early pregnancy. Endometrial function is directly regulated by local factors that include pH, oxygen tension and ion concentrations to generate an environment conducive to fertilization. A superfamily of potassium channels characterized by two-pore domains (K2P) and encoded by KCNK genes is implicated in the control of the cell resting membrane potential through the generation of leak currents and modulation by various physicochemical stimuli. The aims of the study were to determine the expression and function of K2P channel subtypes in proliferative and secretory phase endometrium obtained from normo-ovulatory women and in an endometrial cancer cell line. Using immunochemical methods, real-time qRT-PCR proliferation assays and electrophysiology. Our results demonstrate mRNA for several K2P channel subtypes in human endometrium with molecular expression of TREK-1 shown to be higher in proliferative than secretory phase endometrium (P < 0.001). The K2P channel blockers methanandamide, lidocaine, zinc and curcumin had antiproliferative effects (P < 0.01) in an endometrial epithelial cancer cell line indicating a role for TASK and TREK-1 channels in proliferation. Tetraethylammonium- and 4-aminopyridine-insensitive outwards currents were inhibited at all voltages by reducing extracellular pH from 7.4 to 6.6. Higher expression of TREK-1 expression in proliferative phase endometrium may, in part, underlie linked to increased cell division. The effects of pH and a lack of effect of non-specific channel blockers of voltage-gated potassium channels imply a role for K2P channels in the regulation of human endometrial function.
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Affiliation(s)
- Suraj K Patel
- Academic Division of Obstetrics & Gynaecology, University of Nottingham, Derby, UK
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Pearson T, Zhang J, Arya P, Warren AY, Ortori C, Fakis A, Khan RN, Barrett DA. Measurement of vasoactive metabolites (hydroxyeicosatetraenoic and epoxyeicosatrienoic acids) in uterine tissues of normal and compromised human pregnancy. J Hypertens 2011; 28:2429-37. [PMID: 20852449 DOI: 10.1097/hjh.0b013e32833e86aa] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Preeclampsia and intrauterine growth restriction define two disorders of a multifactorial etiology that compromise maternal and fetal well being as well as cardiovascular health in later life. Many of the overt symptoms of preeclampsia are attributable to the systemic endothelial dysfunction observed in the uteroplacental and systemic circulation, leading to a generalized vasoconstriction, hypertension and inadequate placental perfusion. Mounting evidence implicates nonprostanoid eicosanoids, epoxyeicosatrienoic acids (EETs) and hydroxyeicosatetraenoic acids (HETEs) in the control of vascular function and dysfunction. OBJECTIVE To determine whether levels of EETs and HETEs are altered in preeclampsia and intrauterine growth restriction compared with normal term pregnancy. METHODS An analytical liquid chromatography-tandem mass spectrometry profiling method was utilized in order to analyze differential levels of EETs and HETEs in intrauterine tissues of term nonlaboring, laboring and preeclamptic women as well as women with a growth-restricted pregnancy. RESULTS Placentae of preeclamptic women contained significantly (P < 0.05) larger amounts of 5-HETE, 12-HETE and 15-HETE known to possess either vasoconstrictive or proinflammatory actions. Laboring tissues were characterized by significantly higher (P < 0.05) EET levels in the amnion compared with the other clinical groups. EET and HETE levels in preeclampsia and intrauterine growth restriction were positively correlated (P < 0.05), whereas in normal and laboring pregnancies, EETs and HETEs were negatively correlated. CONCLUSION Increased production of 5-HETE, 12-HETE and 15-HETE metabolites in preeclamptic placentae indicates an important role for this family of eicosanoids in the cause of this disease.
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Affiliation(s)
- Timothy Pearson
- Academic Division of Obstetrics & Gynaecology, University of Nottingham, The Medical School, The Royal Derby Hospital, Derby, UK
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Abstract
The antagonistic activity of five aquatic hyphomycetes, viz., Heliscus lugdunensis, Tetrachaetum elegans, Tetracladium breve, T. marchalianum, and T. nainitalense, against seven plant pathogenic fungi was studied using a dual culture technique. Inhibitory activity of tested aquatic hyphomycetes was determined by measuring the radial growth of plant pathogenic fungi on dual culture plates. Tetrachaetum elegans showed antagonistic activity against Colletotrichum falcatum, Fusarium oxysporum, Pyricularia oryzae, Sclerotium sclerotiorum, and Tilletia indicaHeliscus lugdunensis showed antagonism against only two plant pathogenic fungi, Rhizoctonia solani and Colletotrichum falcatum.Tetracladium breve, T. marchalianum, and T. nainitalense showed no response towards tested plant pathogenic fungi.
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Affiliation(s)
- S C Sati
- Department of Botany, Kumaun University, Nainital, India
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Abstract
An aquatic hyphomycete, Tetracladium nainitalense sp. nov., isolated as a root endophyte from riparian plants from Nainital, Kumaun Himalaya, India, is illustrated and described. The new species is characterized by laterally applanate conidia appearing lobate, with typically four rounded apices and lacking filiform, acicular or subulate elements. An updated key to the species of Tetracladium is provided.
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Affiliation(s)
- S C Sati
- Department of Botany, Kumaun University, Nainital, India
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Arya P, Chatterjee P. Gene expression, data analysis and modelling. N Biotechnol 2009. [DOI: 10.1016/j.nbt.2009.06.967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jones M, Bennett J, Gray R, Arya P, Lucas B. Pharmacological management of akathisia in combination with psychological interventions by a mental health nurse consultant. J Psychiatr Ment Health Nurs 2006; 13:26-32. [PMID: 16441390 DOI: 10.1111/j.1365-2850.2006.00908.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The article describes the management of akathisia by a mental health nurse (MHN) prescriber, working in partnership with the patient. A single-case design was used to evaluate this. It highlights three features: first, MHN can safely prescribe psychiatric medication in combination with concordance therapy. Second, the value base underpinning prescribing practice is partnership, honesty and choice for the patient. Finally, the pharmacological mechanism of antipsychotic medication, which contributes towards akathisia, requires further analysis.
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Affiliation(s)
- M Jones
- Hillingdon Primary Care Trust and Buckinghamshire and Chilterns University, Riverside Centre, Uxbridge, UK.
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Goswami M, Sucharita B, Arya P. Performance evaluation of telemetry stations based on site selection (Short Communication). DEFENCE SCI J 2003. [DOI: 10.14429/dsj.53.2261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Klippenstein J, Arya P, Wayner DDM. Relative bond dissociation energies for some NADH model compounds from hydride transfer/electron transfer equilibria in acetonitrile. J Org Chem 2002. [DOI: 10.1021/jo00024a004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
In this genomics and proteomics age, highly functionalized natural products or natural-product-like compounds are likely to play important roles in understanding the functions of emerging biological targets because they serve as small-molecule chemical probes in modulating a target's specific actions (i.e. activation or deactivation). Development of stereoselective reaction-derived methods on solid phase provides a means of obtaining functionalized chiral core structures that may be used for high-throughout syntheses.
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Affiliation(s)
- P Arya
- Chemical Biology Program, Steacie Institute for Molecular Sciences, National Research Council of Canada, 100 Sussex Drive, K1A 0R6, Ottawa, Ontario, Canada.
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Arya P, Panda G, Rao NV, Alper H, Bourque SC, Manzer LE. Solid-phase catalysis: a biomimetic approach toward ligands on dendritic arms to explore recyclable hydroformylation reactions. J Am Chem Soc 2001; 123:2889-90. [PMID: 11456979 DOI: 10.1021/ja003854s] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Combinatorial chemistry has contributed significantly to understanding the structure-function relationships of biologically important molecules such as proteins and nucleic acids. However, carbohydrates and carbohydrate conjugates, which have been identified as key modulators of several biological functions have not enjoyed the same measure of success. The complexity and synthetic challenges of carbohydrate conjugates have resulted in a number of conceptual approaches to rapidly access sufficient quantities of these biomolecules. This article summarizes these combinatorial approaches and also highlights fully automated library synthesis of artificial glycopeptides with the goals of understanding their biological roles.
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Affiliation(s)
- A Barkley
- Chemical Biology Program, Steacie Institute for Molecular Sciences, National Research Council of Canada, Ottawa, ON
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Abstract
A programmed synthesis of neoglycopeptides has been developed in which two, similar or different, glycoside moieties could be attached either (i) at the N-terminal of short peptides or (ii) one at the N-internal and the other(s) at the N-terminal site, in a highly flexible and controlled manner. A stepwise branching of N-terminal peptides has been achieved by glycoside aldehyde reductive amination followed by the glycoside carboxylic acid coupling (model 1). In another approach, after N-alkylation with glycoside aldehyde, the N-glycosylated derivative is subjected to peptide synthesis. This is then followed by the attachment of the second glycoside moiety at the N-terminal using either glycoside aldehyde or glycoside carboxylic acid derivative (model 2). Alternatively, the attachment of second and third glycoside derivatives could be achieved simultaneously, by reductive amination/carboxylic acid couplings (model 3). The methodologies presented here are highly versatile and combine diversity in both peptides/pseudopeptides and glycoside moieties.
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Affiliation(s)
- P Arya
- Steacie Institute for Molecular Sciences, National Research Council of Canada, Ottawa, Ontario
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Arya P, Kutterer KM, Qin H, Roby J, Barnes ML, Lin S, Lingwood CA, Peter MG. Alpha-galactose based neoglycopeptides. Inhibition of verotoxin binding to globotriosylceramide. Bioorg Med Chem 1999; 7:2823-33. [PMID: 10658586 DOI: 10.1016/s0968-0896(99)00226-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Solution and solid phase strategies for the synthesis of alpha-galactose based neoglycopeptide derivatives 2-13 were developed. Neoglycopeptides generated were tested for the inhibition of verotoxin binding to globotriosylceramide (Gb3) using ELISA. Among all of the compounds tested, only the lipid derivatives of neoglycopeptides, 11, 12 and 13 were found to be inhibitors, IC50 = 2.0 mM (11b and 12c) and 0.2 mM (11c and 13c). All of the inhibitors (11b, 11c, 12c and 13c) have a similar branching of the two alpha-galactosyl units at the N-terminal glycine residue of a short peptide and a lipid moiety attached at the C-terminal site. Both of these factors seem to be crucial for the inhibition. It is interesting to note that the inhibitors have only a portion of the natural trisaccharide ligand. The secondary groups either may contribute in sub-site oriented interactions with the protein receptors or may mimic the internal sugar units of the cell-surface ligand, Gb3.
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Affiliation(s)
- P Arya
- Chemical Biology Program, Steacie Institute for Molecular Sciences, National Research Council of Canada, Ottawa, ON.
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Arya P, Alibhai N, Qin H, Burton GW, Batist G, You SX, Alaoui-Jamali MA. Design and synthesis of analogs of vitamin E: antiproliferative activity against human breast adenocarcinoma cells. Bioorg Med Chem Lett 1998; 8:2433-8. [PMID: 9873556 DOI: 10.1016/s0960-894x(98)00438-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Analogs of alpha-tocopherol (vitamin E; compounds 3-9) have been synthesized and tested for their antiproliferative activity using the human breast cancer cell line, MCF7. Compounds 6-9 were synthesized from a common symthom, rac-Trolox (14) and are soluble/miscible at physiological pH. Compounds 4, 8, and 9 were found to have antiproliferative activity at micromolar concentrations.
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Affiliation(s)
- P Arya
- Steacie Institute for Molecular Sciences, National Research Council of Canada, Ottawa, Ontario
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Arya P, Kutterer KM, Qin H, Roby J, Barnes ML, Kim JM, Roy R. Diversity of C-linked neoglycopeptides for the exploration of subsite-assisted carbohydrate binding interactions. Bioorg Med Chem Lett 1998; 8:1127-32. [PMID: 9871721 DOI: 10.1016/s0960-894x(98)00182-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Diversity of alpha-galactose based C-linked neoglycopeptides (1b, 2b, 3c, 4d, and 5d) has been developed to explore the importance of subsite-assisted carbohydrate binding interactions. Deprotected C-linked neoglycopeptides (1b, 2b, 3c, 4d, and 5d) were synthesized and tested in competitive inhibition assays using a model enzyme-linked lectin (e.g., Maclura pomifera). Compound 2b, with two alpha-galactoside units on the side chain of the lysine residue of the dipeptide backbone, exhibited a remarkable effect with a 2.82-fold increase in its inhibitory properties (IC50 1.48 mM) in comparison to 1b (IC50 4.18 mM).
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Affiliation(s)
- P Arya
- Steacie Institute for Molecular Sciences, National Research Council of Canada, Ottawa, Ontario.
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Schneider H, Fiander H, Harrison K, Watson M, Burton G, Arya P. Inhibitory potency of lithocholic acid analogs and other bile acids on glucuronosyltransferase activity in a colon cancer cell line. Bioorg Med Chem Lett 1996. [DOI: 10.1016/0960-894x(96)00092-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
The body weight or body weight/height ratio exhibits a positive linear correlation to hair zinc (Zn) concentration which is more strongly positive in men than in women. The obese of both sexes possess higher Zn concentrations in their hair than those with normal body weight/height. The degree of obesity increases with the increase in the hair Zn concentration.
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Affiliation(s)
- S K Taneja
- Department of Zoology, Panjab University, Chandigarh, India
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Taneja SK, Chadha S, Arya P. Lipid-zinc interaction: its effect on the testes of mice. Br J Nutr 1995; 73:723-31. [PMID: 7626591 DOI: 10.1079/bjn19950076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Lipid-Zn interaction in the testes of mice was studied by feeding them low-fat (30 g maize oil/kg; group LFZD) and high-fat (90 g maize oil/kg; group HFZD) Zn-deficient diets for 6 weeks. The results were compared with those of corresponding Zn-supplemented-diet-fed controls (groups LFZS and HFZS). The integument-related Zn-deficiency symptoms appeared in group HFZD and not in group LFZD mice despite lack of Zn in their ration and an equal level of Zn in their blood serum. The feed intake, gain in body weight and testes weight of the LFZD group were comparable with those of the LFZS and HFZS groups (P > 0.05) but were higher than those of the group HFZD (P < 0.05). The testes of group HFZD displayed necrotic changes marked by the presence of giant cells, lower RNA, DNA and protein concentrations and higher phospholipid and cholesterol levels than those of mice in the LFZD group. The concentrations of these fractions were not significantly different between LFZD and HFZS. The results do not support the hypothesis that Zn is essential either for testicular function or for nucleic acid and protein synthesis in animals fed on a low-fat diet; however, it appears to be essential for animals fed on a high-fat diet. The changes observed in the testes of the HFZD animals suggest the excess intake of fat as their cause in Zn-deficient animals.
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Affiliation(s)
- S K Taneja
- Department of Zoology, Panjab University, Chandigarh, India
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Taneja SK, Arya P. Lipid deposition in intestine as a possible cause of malabsorption of nutrients in zinc-deficient common carp (Cyprinus carpio). Br J Nutr 1994; 72:753-62. [PMID: 7530042 DOI: 10.1079/bjn19940077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An experiment was performed to examine the interaction between Zn deficiency and lipid intake in carp. The carp were given a high-lipid diet that was either Zn-deficient (ZD) or Zn-supplemented (ZS), or were pair-fed (PF) the ZS diet to the intake of the ZD group. After 8 weeks the carp were killed and measurements were made of intestinal glucose uptake, levels of DNA, RNA and triacylglycerol, and alkaline phosphatase (EC 3.1.3.1) activity in liver and intestine samples. A further group of similar carp were given the same diets but at week 8 were transferred to low-lipid diets, with the exception of half the ZD group. After a further 8 weeks of treatment, carps were killed for biochemical studies. Intestinal [14C]glucose uptake, levels of DNA, RNA and alkaline phosphatase activity in intestine and liver were significantly (P < 0.05) lower in the high-lipid ZD group than in the high-lipid ZS and PF diet groups. The triacylglycerol concentration in the intestine was higher in the high-lipid ZD group than in the other two groups. When the carp were given the corresponding low-lipid diets, the variables measured in intestine and liver of the ZD group were close to those of the other groups. The results of this study demonstrate that lipid, when present in excess in the diet, accumulates in the intestine under Zn-deficient conditions and may reduce the absorption of glucose in carp. The reduced RNA and DNA levels and alkaline phosphatase activity in liver and intestine of ZD fish compared with those of ZS fish given high-lipid diets is proposed to be due to the malabsorption of nutrients linked with lipid deposition in the intestine, rather than their dependence on the level of Zn in the diet.
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Affiliation(s)
- S K Taneja
- Department of Zoology, Panjab University, Chandigarh, India
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Abstract
Zinc deficiency was induced in adult male mice by feeding them for 8 weeks on a purified semi-synthetic Zn-deficient diet (ZD) containing 90 g lipid/kg (60 g maize oil plus 30 g cod-liver oil). One group was then fed on a low-lipid Zn-deficient diet (ZDLR) containing 30 g cod-liver oil/kg as the sole lipid source for a further 8 weeks. At the end of the experiment the stomach clearance rate, daily food intake, body-weight gain and [14C]glucose uptake in the intestine were significantly higher in group ZDLR than in mice that continued eating the Zn-deficient lipid-adequate diet ZD, and were comparable to results for a group given a Zn-supplemented diet. These results suggest that the pathogenesis of anorexia, nutrient malabsorption and growth retardation are secondary to lipid malabsorption resulting from Zn deficiency.
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Affiliation(s)
- S K Taneja
- Department of Zoology, Panjab University, Chandigarh, India
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Taneja SK, Arya P. Inanition may reduce alkaline phosphatase activity in liver and intestine of zinc-deficient mice. J Nutr 1992; 122:1744-7. [PMID: 1640270 DOI: 10.1093/jn/122.8.1744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Zinc-deficiency was induced in mice by feeding a Zn-deficient basal diet (ZD dietary group) containing 9% lipid (6% corn oil, 3% cod liver oil) for 8 wk. Thereafter, the corn oil was withdrawn from the basal diet and a subset of Zn-deficient animals (ZDLR group) was fed this modified low fat diet for another 8 wk. Alkaline phosphatase activity in intestine and liver was compared in these mice and in those allowed ad libitum access to the lipid-adequate Zn-supplemented diet (ZS group), in those pair-fed the Zn-supplemented diet (PF group) and in those fed the lipid-adequate, Zn-deficient diet ad libitum (ZD group). The enzyme activity in both intestine and liver of the ZDLR group was greater than in those of the ZD group and greater than or equal to those of the ZS and PF diet groups. The results of this study suggest that the reduction in alkaline phosphatase in Zn-deficient animals is a response secondary to associated inanition.
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Affiliation(s)
- S K Taneja
- Department of Zoology, Panjab University, Chandigarh, India
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Datta DV, Narang AP, Arya P, Mahajan RC. Glucose 6-phosphate dehydrogenase activity in amoebic liver abscess - a preliminary communication. J Assoc Physicians India 1982; 30:527-8. [PMID: 7169489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Joshi KC, Pathak VN, Arya P, Chand P. Possible psychopharmacological agents. Part 7: Synthesis and CNS activity of some fluorinated 2,4,7/8-trisubstituted-3H-1,5-benzodiazepinium monoperchlorates. Pharmazie 1979; 34:718-20. [PMID: 545340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A series of new fluorinated 2,4'7/8-trisubstituted-3H-1,5-benzodiazepinium monoperchlorates have been synthesized and characterized by IR and NMR spectral studies. Representative compounds have been screened for their CNS activity viz., behavioural, analgesic, anticonvulsant and antireserpine. 8-Chloro-2-(4'-fluorophenyl)-4-phenyl-3H-1,5-benzodiazepinium monoperchlorate has shown pronounced antireserpine activity.
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Datta DV, Narang AP, Arya P, Sahni MM, Banerjee CK, Walia BN, Dang HS, Somasundram S. Indian childhood cirrhosis. Lancet 1979; 2:641. [PMID: 90308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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