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Gaikwad P, Bargir UA, Shinde S, Kini P, Chaurasia R, Yadav U, Dhawale A, George M, Jodhawat N, Setia P, Vedpathak D, Dalvi A, Parab A, Gupta M, Yadav RM, Goriwale M, Vundinti B, Bhat N, Sapra BK, Otiv M, Sharma R, Madkaikar M. A Clinical Conundrum with Diagnostic and Therapeutic Challenge: a Tale of Two Disorders in One Case. J Clin Immunol 2023; 43:1891-1902. [PMID: 37526892 DOI: 10.1007/s10875-023-01553-0] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 07/13/2023] [Indexed: 08/02/2023]
Abstract
Living organisms are exposed to exogenous and endogenous agents that affect genomic integrity by creating DNA double strand breaks (DSBs). These breaks are repaired by DNA repair proteins to maintain homeostasis. Defects in DNA repair pathways also affect lymphocyte development and maturation, as DSB sites are critical intermediates for rearrangements required for V(D)J recombination. Recent classifications for inborn errors of immunity (IEIs) have listed DNA repair defect genes in a separate group, which suggests the importance of these genes for adaptive and innate immunity. We report an interesting case of a young female (index P1) with mutations in two different genes, DCLRE1C and FANCA, involved in DNA repair pathways. She presented with clinical manifestations attributed to both defects. With the advent of NGS, more than one defect is increasingly identified in patients with IEIs. Familial segregation studies and appropriate functional assays help ascertain the pathogenicity of these mutations and provide appropriate management and genetic counseling.
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Affiliation(s)
- Pallavi Gaikwad
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India
| | - Umair Ahmed Bargir
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India
| | - Shweta Shinde
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India
| | - Pranoti Kini
- Department of Pediatric Hematology Oncology, Comprehensive Thalassemia Care, PHO and BMT Centre, Borivali, Mumbai, India
| | - Rajesh Chaurasia
- Radiological Physics and Advisory Division, Bhabha Atomic Research Center, Trombay, Mumbai, India
| | - Usha Yadav
- Radiological Physics and Advisory Division, Bhabha Atomic Research Center, Trombay, Mumbai, India
| | - Amruta Dhawale
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India
| | - Merin George
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India
| | - Neha Jodhawat
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India
| | - Priyanka Setia
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India
| | - Disha Vedpathak
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India
| | - Aparna Dalvi
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India
| | - Ankita Parab
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India
| | - Maya Gupta
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India
| | - Reetika Malik Yadav
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India
| | - Mayuri Goriwale
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India
| | - Baburao Vundinti
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India
| | - Nagesh Bhat
- Radiological Physics and Advisory Division, Bhabha Atomic Research Center, Trombay, Mumbai, India
| | - B K Sapra
- Radiological Physics and Advisory Division, Bhabha Atomic Research Center, Trombay, Mumbai, India
| | - Madhumati Otiv
- Department of Paediatric Intensive Care Unit, KEM Hospital, Pune, India
| | - Ratna Sharma
- Department of Pediatric Hematology Oncology, Comprehensive Thalassemia Care, PHO and BMT Centre, Borivali, Mumbai, India
| | - Manisha Madkaikar
- Indian Council of Medical Research (ICMR) - National Institute of Immunohaematology (NIIH), KEM Hospital, 13th floor New Multistorey Building, Parel Mumbai, Mumbai, India.
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Yadav U, Dutt R, Bansal K, Gupta A, Bala R, Bhardwaj S, Verma N, Bishnoi M, Kumar D, Datta TK, Kumar P. Epsilon poly-lysine in buffalo semen extender: a step towards reducing the development of antibiotic resistance. Reprod Domest Anim 2023. [PMID: 37254573 DOI: 10.1111/rda.14399] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 05/07/2023] [Accepted: 05/28/2023] [Indexed: 06/01/2023]
Abstract
The use of antibiotics in semen extenders can contribute to the development of antibiotic resistance. The objective of the study was to evaluate epsilon-polylysine (Ɛ-PL) as a substitute for antibiotics in the buffalo semen extender. For this, 20 semen ejaculates were collected from four Murrah buffalo bulls. Each ejaculate was divided into three equal aliquots and extended into an egg yolk-based semen extender containing either antibiotics (strepto-penicillin) or different concentrations of Ɛ-PL (0.64 g/L and 1.28 g/L) to make the final concentration 80 million sperm/mL and cryopreserved as per the standard procedure. The antibiogram sensitivity test confirmed that Ɛ-PL is an effective antimicrobial against microbes present in buffalo semen ejaculates. Further, the addition of Ɛ-PL in the semen extender significantly reduces the colony forming unit (CFU)/mL in cryopreserved semen equivalent to strepto-penicillin. The sperm motility and kinematic parameters assessed by a computer-assisted sperm analyzer showed that Ɛ-PL did not inhibit either sperm motility not kinematic parameters of cryopreserved sperm. The flow-cytometric evaluation of frozen-thawed sperm revealed interesting results. The extender supplemented with Ɛ-PL protected sperm acrosome and mitochondrial membrane potential greater than the extender supplemented with strepto-penicillin. Further, Ɛ-PL reduced significantly the production of superoxide anions from mitochondria during the cryopreservation process. In this way, Ɛ-PL may be a suitable alternative to antibiotics in semen extenders. In conclusion, Ɛ-PL at a concentration of 0.64 g/L acts as an effective antimicrobial as well as antioxidant in semen extender for cryopreservation of buffalo sperm.
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Affiliation(s)
- Usha Yadav
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
- Department of Veterinary Gynaecology and Obstetrics, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - Ravi Dutt
- Department of Veterinary Gynaecology and Obstetrics, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - Krishna Bansal
- Department of Veterinary Gynaecology and Obstetrics, College of Veterinary and Animal Science Navania, Rajasthan University of Veterinary and Animal Sciences, Bikaner, Rajasthan, India
| | - Akansha Gupta
- Department of Dairy Cattle Physiology, ICAR-National Dairy Research Institute Karnal, 132001
| | - Renu Bala
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
| | - Shivani Bhardwaj
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
| | - Nisha Verma
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
| | - Manju Bishnoi
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
| | - Dharmendra Kumar
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
| | - T K Datta
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
| | - Pradeep Kumar
- Animal Physiology and Reproduction Division, ICAR-Central Institute for Research on Buffaloes, Hisar, Haryana, India
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Das N, Chaudhary GP, Yadav S, Yadav U, Yadav AK, Chaudhary S, Pandey J. Perception of Nepalese nursing students toward E-learning in Nepal. J Educ Health Promot 2023; 12:51. [PMID: 37113420 PMCID: PMC10127479 DOI: 10.4103/jehp.jehp_945_22] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 09/26/2022] [Indexed: 06/19/2023]
Abstract
BACKGROUND E-learning is the delivery of learning and training through digital resources. Although e-learning is based on formalized learning, it is provided through computers, tablets, and even cellular phones those are connected to the Internet. This makes it easy for users to learn anytime, anywhere, with few, if any restrictions. MATERIAL AND METHODS A cross-sectional study was done, and data was obtained through an online survey method from September 14, 2020 to October 08, 2020. Questions were created in "Google Forms." The targeted population was all nursing students from all over Nepal. There were a total of 365 respondents. A pilot study was done on 10 students. After the pilot study, the same question was distributed to all the respondents. RESULTS Almost half (40.8%) got disturbed in their online class because of electricity; around half of the respondents (41.9%) are disturbed in their online class because of Internet problems. Moreover, around half of the respondents (44.4%) use the data pack daily, and 38.6% use the data sometimes. CONCLUSION The study concludes that most students suffered from Internet disturbance and electricity problems during online classes. Because of electricity and Internet problems, most students feel anxious during class, and most of the students are not able to attend classes. Most students are compelled to use data packs for online classes. However, the course may not be completed if the problems arising during online classes are not solved.
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Affiliation(s)
- Nikita Das
- Department of Medical-Surgical Nursing, Unique Collage of Medical Science and Hospital Pvt Ltd, Affiliated to Purbanchal University, Biratnagar, Nepal
| | - Gautam P. Chaudhary
- Department of Medical-Surgical Nursing, Unique Collage of Medical Science and Hospital Pvt Ltd, Affiliated to Purbanchal University, Biratnagar, Nepal
| | - Sima Yadav
- Department of Medical-Surgical Nursing, Unique Collage of Medical Science and Hospital Pvt Ltd, Affiliated to Purbanchal University, Biratnagar, Nepal
| | - Usha Yadav
- Department of Medical-Surgical Nursing, Unique Collage of Medical Science and Hospital Pvt Ltd, Affiliated to Purbanchal University, Biratnagar, Nepal
| | - Asha K. Yadav
- Department of Medical-Surgical Nursing, Unique Collage of Medical Science and Hospital Pvt Ltd, Affiliated to Purbanchal University, Biratnagar, Nepal
| | - Sabina Chaudhary
- Department of Medical-Surgical Nursing, Unique Collage of Medical Science and Hospital Pvt Ltd, Affiliated to Purbanchal University, Biratnagar, Nepal
| | - Jitendra Pandey
- Department of Pharmacy, Crimson College of Technology, Pokhara University, Nepal
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Jamali MF, Yadav U, Babu MMM, Kant R, Mohanan K. Additive-free synthesis of fused tricyclic cyanoisoxazolidines using in situ formed cyanonitrones. Chem Commun (Camb) 2023; 59:446-449. [PMID: 36519364 DOI: 10.1039/d2cc05831f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein, we disclose the first report on the generation of cyanonitrone in situ from diazoacetonitrile and nitrosoarene, and its subsequent [3+2] cycloaddition with oxabicyclic alkenes to access fused tricyclic cyanoisoxazolidines. Further, this methodology could be extended to access fused tricyclic trifluoromethylated and phosphonylated isoxazolidines. Surprisingly, the reductive ring-opening of cyanoisoxazolidines was followed by a spontaneous lactonization to produce fused tricyclic amino lactones. Moreover, the N-O bond of the obtained tricyclic trifluoromethylated isoxazolidines could be cleaved to obtain 1,3-amino alcohols.
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Affiliation(s)
- Muhammad Fahad Jamali
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Usha Yadav
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Mary Merlin Manjaly Babu
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
| | - Ruchir Kant
- Molecular and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Kishor Mohanan
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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Gandhi A, Rastogi M, Yadav U, Mishra V, Srivastava A, Bharati A, Mishra S. A Pilot Study of Moderately Hypo-Fractionated Whole Pelvic Radiotherapy with Concurrent Chemotherapy and Image-Guided High Dose Rate Brachytherapy for Locally Advanced Cervical Carcinoma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.500] [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: 11/16/2022]
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Chaurasia RK, Yadav U, Bhat NN, Sapra BK. A Quick Laboratory Method for Assessment of Blood Penetration and Splash Resistance of PPE Fabrics During the COVID-19 Pandemic Situation. Trans Indian Natl Acad Eng 2022; 7:339-347. [PMID: 35837007 PMCID: PMC8800417 DOI: 10.1007/s41403-021-00318-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/30/2021] [Indexed: 12/02/2022]
Abstract
In the current outbreak of COVID-19, healthcare facilities are hit by a shortage of supply of Personal Protective Equipments (PPE) owing to extensive local and global demands and restrictions on their import or export. To circumvent this, trials with several indigenous materials suitable to qualify for PPEs and sterilization techniques for their reuse are being carried out. Prior to their commercialisation, it is imperative to evaluate the resistance of the PPE fabrics against penetration of synthetic blood under applied pressure, 40–300 mmHg as per test standards. Generally, two types of tests are recommended, Penetration Test and Splash Resistance Test, the former being more stringent. While the final certification of PPEs is carried out by authorised agencies, a first impression quick estimate of the choice of fabric can be made using a simple laboratory set-up. This study describes setups developed in the laboratory to carry out these tests. Evaluation of the fabrics, post-gamma irradiation, was also carried out. Microscopic examinations were performed to investigate radiation-induced structural changes in fabrics showing degraded performance. This set-up is useful for selection of fabrics and to assess the feasibility of reuse of PPEs, which is the need of the hour in this pandemic situation.
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Affiliation(s)
- R. K. Chaurasia
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - U. Yadav
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - N. N. Bhat
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - B. K. Sapra
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
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Pandey M, Xess I, Sachdev J, Yadav U, Singh G, Pradhan D, Xess AB, Rana B, Dar L, Bakhshi S, Seth R, Mahapatra M, Jyotsna VP, Jain AK, Kumar R, Agarwal R, Mani P. Development of a Sensitive and Specific Novel qPCR Assay for Simultaneous Detection and Differentiation of Mucormycosis and Aspergillosis by Melting Curve Analysis. Front Fungal Biol 2022; 2:800898. [PMID: 37744098 PMCID: PMC10512281 DOI: 10.3389/ffunb.2021.800898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 12/17/2021] [Indexed: 09/26/2023]
Abstract
Molecular diagnostic assays can expedite the diagnosis of fungal infections, and subsequently help in early interventions and appropriate management of patients. The aim of this study was to develop a single set of primers for a real-time quantitative polymerase chain reaction (qPCR) assay to detect and identify commonly reported, clinically relevant molds i.e., Aspergillus spp, Mucorales and Fusarium spp., up to genus level by melting curve analysis. This assay was evaluated in whole blood from patients with suspected invasive aspergillosis (IA), and in tissue biopsy, bronchoalveolar lavage (BAL) fluid and other site-specific samples from patients with suspected invasive mucormycosis (IM). The limit of detection (LoD) was determined as 10 copies/μl for all three molds. The mean coefficient of variation (CV) across all sets of intra- and inter-assay data was 0.63% (ranging from 0.42 to 1.56%), showing high reproducibility of the assay. Sensitivity and specificity of the assay were 93.3 and 97.1% respectively for diagnosis of IA, and 99.29 and 83.84% respectively for diagnosis of IM. Fusarium was not detected in any of the clinical samples included and the few laboratory confirmed cases of fusariosis did not meet the inclusion criteria of the study. Hence no ROC curve or cutoff value could be generated for the same. This newly developed qPCR assay therefore appears to be a promising tool in detection of IA and IM.
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Affiliation(s)
- Mragnayani Pandey
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Immaculata Xess
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Janya Sachdev
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Usha Yadav
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Gagandeep Singh
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Dibyabhaba Pradhan
- ICMR Computational Genomics Centre Informatics, Systems & Research Management Division Indian Council of Medical Research, All India Institute of Medical Sciences, New Delhi, India
| | - Ashit Bhushan Xess
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Bhaskar Rana
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Lalit Dar
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Sameer Bakhshi
- Department of Medical Oncology, All India Institute of Medical Sciences, New Delhi, India
| | - Rachna Seth
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Manoranjan Mahapatra
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| | - Viveka P. Jyotsna
- Department of Endocrinology, All India Institute of Medical Sciences, New Delhi, India
| | - Arun Kumar Jain
- Departments of Environmental Toxicology and Bioinformatics, ICMR-National Institute of Pathology Sri Ramachari Bhawan, Safdarjang Hospital Campus, New Delhi, India
| | - Rakesh Kumar
- Department of Otorhinolaryngology, All India Institute of Medical Sciences, New Delhi, India
| | - Reshu Agarwal
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Prashant Mani
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
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Yadav U, Abbas Z, Butcher RJ, Patra AK. A luminescent terbium( iii) probe as an efficient ‘Turn-ON’ sensor for dipicolinic acid, a Bacillus Anthracis biomarker. NEW J CHEM 2022. [DOI: 10.1039/d2nj03437a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work drives the potential of lanthanide luminescence in the quantification and detection of the B. Anthracis bacterial spore by targeting dipicolinic acid (DPA), a principal component of anthrax spores.
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Affiliation(s)
- Usha Yadav
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Zafar Abbas
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Ray J. Butcher
- Department of Chemistry, Howard University, Washington, DC 20059, USA
| | - Ashis K. Patra
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India
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Yadav U, Verma M, Abbas Z, Sivakumar S, Patra AK. An emissive dual-sensitized bimetallic Eu 2III-bioprobe: design strategy, biological interactions, and nucleolus staining studies. NEW J CHEM 2022. [DOI: 10.1039/d2nj02853k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A dual sensitized Eu2III–bioprobe (1) offers incredible opportunities for fine-tuning and exploring a strongly luminescent probe as a nucleolus staining agent.
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Affiliation(s)
- Usha Yadav
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Madhu Verma
- Department of Chemical Engineering and Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Zafar Abbas
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Sri Sivakumar
- Department of Chemical Engineering and Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Ashis K. Patra
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India
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Dutt R, Yadav U, Jinagal S, Kumar M. Dystocia Due to Conjoined Dicephalus Thoracoomphalopagus Tetrabrachius Tetrapus Dicaudatus Twin Monster in Buffalo. Applied Biological Research 2021. [DOI: 10.5958/0974-4517.2021.00051.3] [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: 10/19/2022]
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Bhurtel R, Yadav U, Chaudhary R, Shah S, Poudel P, Pokhrel RP, Sharma S. Effect of Breastfeeding on Relieving Pain during Immunization in Infant. Kathmandu Univ Med J (KUMJ) 2020; 18:376-380. [PMID: 34165095] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Background Advantages due to immunization are numerous and cannot be avoided but at the same time pain inflicted on babies needs to be addressed when possible. Pain associated with immunization injections has often been overlooked when remedies are available. Objective To find out the effect of breastfeeding on relieving pain during immunization injection in infants. Method An experimental study was conducted at Immunization clinic of B.P. Koirala Institute of Health Sciences (BPKIHS). Total 124 subjects were divided randomly into two groups. Experimental subjects were allowed to breastfeed for 5-10 minutes before immunization while control group was immunized without breastfeeding. Interview Questionnaire was used to obtain demographic variables and measurements were obtained. Measures of pain was recorded using duration of cry and Modified Behavior Pain Scale, by Taddio et al. Data was analyzed by using SPSS 20.0 where variables were assessed with frequency tables, Pearson's Chi-Square test, independent t test and Mann Whitney U test. Result The mean pain score in experimental group was 7.10 and in control group 7.56 which was statistically significant (p=0.001). The median duration of cry was significantly shorter in experimental group i.e. 25 seconds (IQR: 20-30) than control group 42.5 seconds (IQR: 30-61.5) (p < 0.001). Conclusion Breastfeeding before immunization is effective in reducing pain in infants.
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Affiliation(s)
- R Bhurtel
- Department of Nursing, College of Medical Sciences Teaching Hospital, Bharatpur, Chitwan
| | - U Yadav
- Department of Child Health Nursing, College of Nursing, B.P. Koirala Institute of Health Sciences, Dharan
| | - R Chaudhary
- Department of Child Health Nursing, College of Nursing, B.P. Koirala Institute of Health Sciences, Dharan
| | - S Shah
- Department of Nursing, Norvic Institute of Nursing Education, Kathmandu
| | - P Poudel
- Department of Pediatric and Adolescent Medicine, B.P. Koirala Institute of Health Sciences, Dharan
| | - R P Pokhrel
- Department of Pediatrics, College of Medical Sciences Teaching Hospital, Bharatpur, Chitwan
| | - S Sharma
- School of Nursing, Faculty of Health, Queensland University of Technology, Queensland, Australia
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Yadav U, Bhat NN, Shirsath KB, Mungse US, Sapra BK. Multifaceted applications of pre-mature chromosome condensation in radiation biodosimetry. Int J Radiat Biol 2020; 96:1274-1280. [PMID: 32689847 DOI: 10.1080/09553002.2020.1798545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 12/29/2022]
Abstract
BACKGROUND Biodosimetry with persistent cytogenetic indicators in peripheral blood lymphocytes (PBLs) plays crucial role in regulatory/medical management of individuals overexposed to radiation. Conventional methods require ∼48 h culture and have limited dose range (0.1-5Gy) applications due to checkpoint arrest/poor stimulation. G0-Phase Premature chromosome condensation (G0-PCC) allows chromosome aberration analysis within hours after blood collection. Due to high skill demand, applications of G0-PCC were not very well explored and being re-visited worldwide. Among all aberrations, analysis of excess chromosomal fragments is quickest. Radiation dose response curve for the fragments has been reported. PURPOSE In present study, excess fragment analysis has been addressed in detail, in addition to validation of radiation dose response curve, gender variation in the response, dose dependent repair kinetics, minimum detection limit (MDL), duration and accuracy of final dose estimation with 5blindfolded, ex vivo irradiated samples have been studied. In extension, feasibility of multiparametric dosimetry with Fluorescent in situ hybridization (FISH) based endpoints were qualitatively explored. MATERIAL AND METHODS PBLs were exposed to Gamma-Radiation and G0-PCC was performed at different time points. Decay kinetics and dose response curve were established. Gender Variation of the frequency of the fragments was assessed at 0, 2 and 4 Gy. FISH was performed with G0-PCC applying centromere probe, whole chromosome paints, multi-color FISH and multi-color banding probes. RESULTS Radiation response curve for fragments was found to be linear (Slope 1.09 ± 0.031 Gy-1). Background frequency as well as dose response did not show significant gender bias. Based on variation in background frequency of fragments MDL was calculated to be ∼0.3 Gy. Kinetics of fragment tested at 0, 4, 8, 16 and 24 h showed exponential decay pattern from 0 to 8 h and without further decay. Final dose estimation of five samples was completed within 13 man-hours. Dicentric chromosomes, translocations, insertions and breaks were identifiable in combination with centromere FISH and WCP. Advanced methods employing multicolor FISH and multi-color banding were also demonstrated with PCC spreads. CONCLUSION G0-PCC, can be useful tool for high dose biodosimetry with quick assessment of fragment frequency. Further, it holds potential for multi-parametric dosimetry in combination with FISH.
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Affiliation(s)
- Usha Yadav
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Mumbai, India
| | - Nagesh Nagabhushana Bhat
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Mumbai, India
| | | | - Utkarsha Sagar Mungse
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Balvinder Kaur Sapra
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Mumbai, India
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13
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Chaubey L, Yadav U, Singh T. Prevalence of anemia in antenatal women at first point-of-care visit to district combined hospital, Chakia, Uttar Pradesh, India. Med J DY Patil Vidyapeeth 2020. [DOI: 10.4103/mjdrdypu.mjdrdypu_179_19] [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: 11/04/2022] Open
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14
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Srivastava S, Sahni K, Rastogi M, Hussain N, Khurana R, Hadi R, Sapru S, Gandhi A, Mishra S, Srivastva A, Bharati A, Nanda S, Rath S, Singh H, Ahmad M, Parida S, Yadav U. Correlation of Toxicity and Response with PD-L1 Expression in Oropharyngeal Cancers Receiving Definitive Chemo-Radiotherapy. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1545] [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: 11/30/2022]
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15
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Jain P, Garai P, Sethi SC, Naqvi N, Yadav B, Kumar P, Singh SL, Yadav U, Bhatnagar S, Rahul, Puri N, Muthuswami R, Komath SS. Modulation of azole sensitivity and filamentation by GPI15, encoding a subunit of the first GPI biosynthetic enzyme, in Candida albicans. Sci Rep 2019; 9:8508. [PMID: 31186458 PMCID: PMC6559964 DOI: 10.1038/s41598-019-44919-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 10/16/2018] [Accepted: 05/24/2019] [Indexed: 01/06/2023] Open
Abstract
Glycosylphosphatidylinositol (GPI)-anchored proteins are important for virulence of many pathogenic organisms including the human fungal pathogen, Candida albicans. GPI biosynthesis is initiated by a multi-subunit enzyme, GPI-N-acetylglucosaminyltransferase (GPI-GnT). We showed previously that two GPI-GnT subunits, encoded by CaGPI2 and CaGPI19, are mutually repressive. CaGPI19 also co-regulates CaERG11, the target of azoles while CaGPI2 controls Ras signaling and hyphal morphogenesis. Here, we investigated the role of a third subunit. We show that CaGpi15 is functionally homologous to Saccharomyces cerevisiae Gpi15. CaGPI15 is a master activator of CaGPI2 and CaGPI19. Hence, CaGPI15 mutants are azole-sensitive and hypofilamentous. Altering CaGPI19 or CaGPI2 expression in CaGPI15 mutant can elicit alterations in azole sensitivity via CaERG11 expression or hyphal morphogenesis, respectively. Thus, CaGPI2 and CaGPI19 function downstream of CaGPI15. One mode of regulation is via H3 acetylation of the respective GPI-GnT gene promoters by Rtt109. Azole sensitivity of GPI-GnT mutants is also due to decreased H3 acetylation at the CaERG11 promoter by Rtt109. Using double heterozygous mutants, we also show that CaGPI2 and CaGPI19 can independently activate CaGPI15. CaGPI15 mutant is more susceptible to killing by macrophages and epithelial cells and has reduced ability to damage either of these cell lines relative to the wild type strain, suggesting that it is attenuated in virulence.
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Affiliation(s)
- Priyanka Jain
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Pramita Garai
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | | | - Nilofer Naqvi
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Bhawna Yadav
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.,Post-doctoral Fellow, Fungal Research Group, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
| | - Pravin Kumar
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.,Research associate, National Institute of Plant Genome Research, New Delhi, 110067, India
| | - Sneh Lata Singh
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Usha Yadav
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Shilpi Bhatnagar
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Rahul
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Niti Puri
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Rohini Muthuswami
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
| | - Sneha Sudha Komath
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
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16
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Yadav U, Rai TK, Sethi SC, Chandraker A, Khan MA, Komath SS. Characterising N-acetylglucosaminylphosphatidylinositol de-N-acetylase (CaGpi12), the enzyme that catalyses the second step of GPI biosynthesis in Candida albicans. FEMS Yeast Res 2018; 18:5045028. [PMID: 29945236 DOI: 10.1093/femsyr/foy067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 06/23/2018] [Indexed: 01/01/2023] Open
Abstract
Candida albicans N-acetylglucosaminylphosphatidylinositol de-N-acetylase (CaGpi12) recognises N-acetylglucosaminylphosphatidylinositol (GlcNAc-PI) from Saccharomyces cerevisiae and is able to complement ScGPI12 function. Both N- and C-terminal ends of CaGpi12 are important for its function. CaGpi12 was biochemically characterised using rough endoplasmic reticulum microsomes prepared from BWP17 strain of C. albicans. CaGpi12 is optimally active at 30°C and pH 7.5. It is a metal-dependent enzyme that is stimulated by divalent cations but shows no preference for Zn2+ unlike the mammalian homologue. It irreversibly loses activity upon incubation with a metal chelator. Two conserved motifs, HPDDE and HXXH, are both important for its function in the cell. CaGPI12 is essential for growth and viability of C. albicans. Its loss causes reduction of GlcNAc-PI de-N-acetylase activity, cell wall defects and filamentation defects. The filamentation defects could be specifically correlated to an upregulation of the HOG1 pathway.
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Affiliation(s)
- Usha Yadav
- School of Life Sciences, Jawaharlal Nehru University, New Delhi-110 067, India
| | - Tarun Kumar Rai
- School of Life Sciences, Jawaharlal Nehru University, New Delhi-110 067, India
| | | | - Anupriya Chandraker
- School of Life Sciences, Jawaharlal Nehru University, New Delhi-110 067, India
| | - Mohd Ashraf Khan
- School of Life Sciences, Jawaharlal Nehru University, New Delhi-110 067, India
| | - Sneha Sudha Komath
- School of Life Sciences, Jawaharlal Nehru University, New Delhi-110 067, India
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17
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Yadav U, Arya R, Kundu S, Sundd M. The “Recognition Helix” of the Type II Acyl Carrier Protein (ACP) Utilizes a “Ubiquitin Interacting Motif (UIM)”-like Surface To Bind Its Partners. Biochemistry 2018; 57:3690-3701. [DOI: 10.1021/acs.biochem.8b00220] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Usha Yadav
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, India
| | - Richa Arya
- Department of Biochemistry, University of Delhi South Campus, Benito Juarez Road, New Delhi 110 021, India
| | - Suman Kundu
- Department of Biochemistry, University of Delhi South Campus, Benito Juarez Road, New Delhi 110 021, India
| | - Monica Sundd
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, India
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18
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Yadav U, Sundd M. Backbone chemical shift assignments of the glycine cleavage complex H protein of Escherichia coli. Biomol NMR Assign 2018; 12:163-165. [PMID: 29335837 DOI: 10.1007/s12104-018-9801-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 11/15/2017] [Accepted: 01/05/2018] [Indexed: 06/07/2023]
Abstract
Glycine cleavage complex H protein (GcvH) is one of the four components that form the glycine cleavage complex (GCS), essential for the synthesis of C1 (one-carbon units) for cell metabolism, by the oxidative cleavage of glycine. The activity of this complex is induced in the presence of exogenous glycine, and is repressed by purines. GCS, in cooperation with GCA (serine hydroxymethyltransferase) regulates the endogenous levels of glycine and C1 units in the cell. GcvH, the lipoamide containing component of the complex, plays an indispensable role in this reaction, as its prosthetic group shuttles between the active site of the three other components of the GCS complex sequentially. In environments rich in exogenous lipoic acid, GcvH is converted to lipoyl-GcvH by Lipoate protein ligase (LplA), by the salvage pathway. When exogenous lipoic acid is deficient, it is post-translationally modified to lipoyl-GcvH by the consecutive action of two enzymes, (a) Lipoate protein ligase B (LipB) and (b) Lipoyl synthase (LipA). Although, the crystal structure has been determined for Escherichia coli GcvH, no information exists for its interaction with LipB or LipA. Therefore, we plan to study its interactions with the aforementioned enzymes. As a first step, we have carried out the complete backbone chemical shift assignments of the E. coli glycine cleavage complex H protein in its apo-form, as well as its C8- intermediate.
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Affiliation(s)
- Usha Yadav
- National Institute of Immunology, Aruna Asaf Ali Marg, JNU Campus, New Delhi, 110 067, India
| | - Monica Sundd
- National Institute of Immunology, Aruna Asaf Ali Marg, JNU Campus, New Delhi, 110 067, India.
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19
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Abstract
The GPI (Glycosylphosphatidylinositol) biosynthetic pathway is a multistep conserved pathway in eukaryotes that culminates in the generation of GPI glycolipid which in turn anchors many proteins (GPI-APs) to the cell surface. In spite of the overall conservation of the pathway, there still exist subtle differences in the GPI pathway of mammals and other eukaryotes which holds a great promise so far as the development of drugs/inhibitors against specific targets in the GPI pathway of pathogens is concerned. Many of the GPI structures and their anchored proteins in pathogenic protozoans and fungi act as pathogenicity factors. Notable examples include GPI-anchored variant surface glycoprotein (VSG) in Trypanosoma brucei, GPI-anchored merozoite surface protein 1 (MSP1) and MSP2 in Plasmodium falciparum, protein-free GPI related molecules like lipophosphoglycans (LPGs) and glycoinositolphospholipids (GIPLs) in Leishmania spp., GPI-anchored Gal/GalNAc lectin and proteophosphoglycans in Entamoeba histolytica or the GPI-anchored mannoproteins in pathogenic fungi like Candida albicans. Research in this active area has already yielded encouraging results in Trypanosoma brucei by the development of parasite-specific inhibitors of GlcNCONH2-β-PI, GlcNCONH2-(2-O-octyl)-PI and salicylic hydroxamic acid (SHAM) targeting trypanosomal GlcNAc-PI de-N-acetylase as well as the development of antifungal inhibitors like BIQ/E1210/gepinacin/G365/G884 and YW3548/M743/M720 targeting the GPI specific fungal inositol acyltransferase (Gwt1) and the phosphoethanolamine transferase-I (Mcd4), respectively. These confirm the fact that the GPI pathway continues to be the focus of researchers, given its implications for the betterment of human life.
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Affiliation(s)
- Usha Yadav
- a Department of Microbiology , University of Delhi , New Delhi , India
| | - Mohd Ashraf Khan
- b Department of Biotechnology , Government Degree College , Anantnag , India
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Chaudhary P, Majumder B, Adhikary L, Chatterjee P, Mitra K, Das U, Yadav U, Shukla P, Chowdhury M, Sudeep K. An observational study on the effect of ranolazine and trimetazidine on angina in hypertrohic cardiomyopathy patients in a tertiary care hospital. Indian Heart J 2017. [DOI: 10.1016/j.ihj.2017.09.118] [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: 10/18/2022] Open
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21
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Yadav U, Anjaria KB, Nairy R, Shirsath KB, Desai UN, Chaurasia RK, Bhat NN, Sapra BK. Differential killing and radio-modifying effects of iodoacetate in mammalian normal and cancer cells. Radiat Environ Biophys 2017; 56:227-239. [PMID: 28612110 DOI: 10.1007/s00411-017-0699-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 06/13/2016] [Accepted: 03/23/2017] [Indexed: 06/07/2023]
Abstract
To explore possible applications of iodoacetate (IA), a glycolytic inhibitor, in cancer treatment, we screened its cytotoxicity and radioprotective/sensitizing efficacy in three different mammalian cell lines; A549 (human lung carcinoma), MCF7 (human mammary cancer), a non-cancerous CHO (Chinese hamster ovary) cells and human lymphocytes. Experiments were carried out using IA concentrations ranging from 0.01 to 2.5 µg/ml, with or without 60Coγ-radiation. In the outcomes, IA was found to exhibit higher toxicity in the cancer cells, whereas it was non-toxic/marginally toxic to the non-cancerous cells. Considerably higher glucose uptake in both cancer cells lines was observed indicating higher rates of glycolysis. IA significantly inhibited glycolysis as reflected by GAPDH activity inhibition. Radiomodifying effects of IA were found to be concentration dependent in both cancerous and non-cancerous cells. The response in non-cancerous was found to be biphasic: at lower concentrations, it offered significant radioprotection; however, the protection decreased with increasing concentration. Moreover, at the highest tested concentration, marginal radiosensitization was also observed (as indicated by clonogenic assay). In both cancer cells, IA offered significant amount of radiosensitization which was considerably high at higher concentrations. Further experiments were carried out to estimate the Dose Modification Factor (DMF) to quantify and compare relative radiosensitization by IA in cancer and normal cell lines. The DMF was calculated for three different concentrations of IA, 0.5, 1, and 1.5 µg/ml, and corresponding values were found to be 1.26, 1.43, and 1.89 for A549 cancer cells, whereas for normal CHO cells, it was 1.13, 1.13, and 1.24. In conclusion, differential killing and radiosensitizing effects of IA suggest that it may have potential use as a anticancer agent and radiosensitizer in cancer therapy.
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Affiliation(s)
- Usha Yadav
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - K B Anjaria
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Rajesha Nairy
- Department of Studies in Physics, Mangalore University, Mangalore, Karnataka, 574199, India
| | - K B Shirsath
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Utkarsha N Desai
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Rajesh K Chaurasia
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Nagesh N Bhat
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
| | - B K Sapra
- Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
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Abstract
Catechol-O-methyltransferase (COMT) is an abundant S-adenosylmethionine (SAM-)-dependent methyltransferase that methylates catechol compounds, including catecholamines and catecholestrogens.COMT gene located at chromosome 22q11.2 contains a functional polymorphism at codon 158(Val158Met), which has been related to psychiatric diseases and different types of cancer. COMT might affect tHcy levels because as a by-product it converts SAM to S-adenosylhomocysteine (SAH), which is reversibly converted to homocysteine. The aim of the present study was to determine the frequency of COMT Val158Met polymorphism in scheduled caste (SC) population of Jaunpur district. Total 100 healthy unrelated subjects belonging to SC, between the age group of 18 to70 years were randomly selected for the present study. 3 ml blood samples were collected from each subject. The inclusion criteria of subjects for present study are that they should be domicile of Uttar Pradesh, and healthy without any individual/ family history of genetic or metabolic disorders. COMT Val158Met polymorphism analysis was done by PCR-RFLP method. The Val/Val genotype was found in 48 subjects, Val/Met in 40 subjects and Met/Met genotype in 12 subjects. Genotype frequencies of Val/Val, Val/Met and Met/Met were 0.48, 0.40 and 0.12 respectively. The allele frequency of Val allele was found to be 0.68 and Met allele frequency was 0.32.
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Affiliation(s)
- P Kumar
- Human Molecular Genetics Laboratory, Department of Biotechnology, VBS Purvanchal University, Jaunpur-222003, Uttar Pradesh, India
| | - U Yadav
- Human Molecular Genetics Laboratory, Department of Biotechnology, VBS Purvanchal University, Jaunpur-222003, Uttar Pradesh, India
| | - V Rai
- Human Molecular Genetics Laboratory, Department of Biotechnology, VBS Purvanchal University, Jaunpur-222003, Uttar Pradesh, India
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Nairy RK, Yerol N, Bhat NN, Desai U, Shirsath K, Yadav U, K Chaurasia R, B K S. Standardization of CalyculinA induced PCC assay and its advantages over Okadaic acid PCC assay in Biodosimetry applications. J Occup Health 2016; 58:563-569. [PMID: 27725377 PMCID: PMC5373906 DOI: 10.1539/joh.16-0049-oa] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE In the present study an attempt was made to estimate coefficients of dose response curves for PCC aberrations induced by CalyculinA and Okadaic acid, using 60Co gamma radiation and 8 MeV pulsed electron beam for biodosimetry application. MATERIALS AND METHODS The modified method outlined by Puig et al. 2013 was used to conduct Calyculin A and Okadaic acid induced PCC assay in human blood lymphocytes.Chemical treatment was given for the last 1 h of a 48 h culture. The study was carried out in the dose range 2.5 to 20 Gy using 60Co gamma rays and 8 MeV pulsed electron beam. RESULTS AND CONCLUSIONS Results show a linear dose dependent increase with a slope of 0.047 ± 0.001 from Calycalin A PCC and 0.048 ± 0.002 form Okadaic acid PCC. The slope of the fragments curve was 0.327 ± 0.006 from Calyculin A and 0.328 ± 0.006 from Okadaic acid PCC. Further, dose calibration studies were carried out for 8 MeV electron using Calyculin A PCC assay and the obtained slope from ring yield was 0.054 ± 0.002 and 0.427 ± 0.009 from fragment yield.
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Avasthi K, Kant R, Aswal S, Tewari AK, Yadav U, Misra UD, Maulik PR. An unusual conformational change in the folded trimethylene/leonard linker pyrazolo[3,4-d]pyrimidine analogue of the theophylline compound due to structural changes. J STRUCT CHEM+ 2015. [DOI: 10.1134/s0022476615070306] [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: 11/23/2022]
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Adab K, Poola H, Hamad H, Yadav U, Udayagiri V, Haidau A, Kovarik P, Telfer M, Catchatourian R. 3230 Tumor bulk, phenotype, or hepatitis C status of diffuse large B cell lymphoma (DLBCL) is not associated with increased risk of tumor lysis syndrome (TLS): An inner city hospital experience with minority patient population. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31807-x] [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: 10/22/2022]
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Kumar A, Arya R, Makwana PK, Dangi RS, Yadav U, Surolia A, Kundu S, Sundd M. The Structure of the Holo-Acyl Carrier Protein of Leishmania major Displays a Remarkably Different Phosphopantetheinyl Transferase Binding Interface. Biochemistry 2015; 54:5632-45. [DOI: 10.1021/acs.biochem.5b00394] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ambrish Kumar
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, India
| | - Richa Arya
- Department
of Biochemistry, University of Delhi South Campus, Benito Juarez
Road, New Delhi 110 021, India
| | - Pinakin K. Makwana
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, India
| | - Rohit Singh Dangi
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, India
| | - Usha Yadav
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, India
| | - Avadhesha Surolia
- Molecular
Biophysics Unit, Indian Institute of Science, Bangalore 560 012, India
| | - Suman Kundu
- Department
of Biochemistry, University of Delhi South Campus, Benito Juarez
Road, New Delhi 110 021, India
| | - Monica Sundd
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110 067, India
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Pawar K, Jain P, Hauhnar L, Yadav B, Kumar P, Singh S, Yadav U, Bhatnagar S, Singh B, Muthuswami R, Komath S. GPI Anchor Biosynthesis Regulates Ergosterol Biosynthesis and Hyphal Morphogenesis. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.766.13] [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: 11/11/2022]
Affiliation(s)
- Kalpana Pawar
- School of life Science Jawahar Lal Nehru UniversityDelhiDelhiIndia
- Department of Biotechnology and BiochemistryUttarakhand Technical UniversityDehradunUttarakhandIndia
| | - Priyanka Jain
- School of life Science Jawahar Lal Nehru UniversityDelhiDelhiIndia
| | | | - Bhawna Yadav
- School of life Science Jawahar Lal Nehru UniversityDelhiDelhiIndia
- School of Medical sciences Institute of Medical SciencesUniversity of AberdeenAberdeenUnited Kingdom
| | - Pravin Kumar
- School of life Science Jawahar Lal Nehru UniversityDelhiDelhiIndia
- Department of plant molecular biology University of Delhi, South Campus Delhi DelhiIndia
| | - Sneh Singh
- School of life Science Jawahar Lal Nehru UniversityDelhiDelhiIndia
| | - Usha Yadav
- School of life Science Jawahar Lal Nehru UniversityDelhiDelhiIndia
| | - Shilpi Bhatnagar
- School of life Science Jawahar Lal Nehru UniversityDelhiDelhiIndia
| | - Balwinder Singh
- Department of Biotechnology and BiochemistryUttarakhand Technical UniversityDehradunUttarakhandIndia
| | | | - Sneha Komath
- School of life Science Jawahar Lal Nehru UniversityDelhiDelhiIndia
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Chaurasia RK, Balakrishnan S, Kunwar A, Yadav U, Bhat N, Anjaria K, Nairy R, Sapra BK, Jain VK, Priyadarsini KI. Cyto-genotoxicity assessment of potential radioprotector, 3,3′-diselenodipropionic acid (DSePA) in Chinese Hamster Ovary (CHO) cells and human peripheral blood lymphocytes. Mutation Research/Genetic Toxicology and Environmental Mutagenesis 2014; 774:8-16. [DOI: 10.1016/j.mrgentox.2014.08.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 08/28/2014] [Accepted: 08/30/2014] [Indexed: 12/12/2022]
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Mangla A, Thekkekara R, Yadav U, Mohajer R, Lad T. The Association of Prechemotherapy Neutrophil-Lymphocyte Ratio With Survival in Non-Small Cell Lung Cancer Patients. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Yadav U, Choudhury PP. Biodegradation of sulfosulphuron in agricultural soil by Trichoderma sp. Lett Appl Microbiol 2014; 59:479-86. [PMID: 25041702 DOI: 10.1111/lam.12306] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [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: 02/24/2014] [Revised: 06/05/2014] [Accepted: 07/04/2014] [Indexed: 11/30/2022]
Abstract
UNLABELLED Sulfosulphuron-degrading fungus was isolated by enrichment technique from the sulfosulphuron-contaminated soil of wheat rhizosphere. To assess the biodegradation potential of isolated Trichoderma sp., minimal potato dextrose agar broth with different levels of sulfosulphuron (up to 2 g l(-1) ) was evaluated in the growth and biotransformation experiments. ESI LC-MS/MS analysis revealed the presence of degradation products 2-amino-4,6-dimethoxypyrimidine (I) and 2-ethylsulfonyl imidazo{1,2-a} pyridine-3-sulfonamide-2-ethylsulfonyl imidazo{1,2-a} pyridine-3-sulfonamide (II) indicating the cleavage of the urea bridge and the presence of the by-product N-(4,6-dimethoxypyrimidin-2-yl)urea (III) indicating the degradation of sulfonylamide linkage. Two other metabolites, N-(4,6-dimethoxypyrimidin-2-yl)-N'-hydroxyurea (IV) and N, N'-bis(4,6-dimethoxypyrimidin-2-yl)urea (V), were also identified. From the previous reports, it was found that the degradation of sulfonyl urea herbicides took place through the chemical degradation of the sulfonylurea bridge followed by microbial degradation. During this investigation, Trichoderma sp. grew well with and degraded sulfosulphuron via both the decarboxylation on the sulphonyl urea bridge and the hydrolytic cleavage of the sulfonylamide linkage as demonstrated by the formation of metabolites. Trichoderma is nonphytopathogenic in nature, and some species of it restrict the growth of soil-dwelling phytopathogens. Therefore, it is a promising candidate for the decontamination of soil from sulfosulphuron residues. SIGNIFICANCE AND IMPACT OF THE STUDY The degradation of sulfosulphuron by any individual fungus is being reported for the first time. Trichoderma sp. isolated from wheat-rhizospheric soil could survive in minimal broth rich in sulfosulphuron. Previous reports have described the complete degradation of any sulfonyl urea herbicides by micro-organisms only after the pH-dependent chemical hydrolysis of the sulfonyl urea bridge of the herbicide. This study demonstrates the novel result that the Trichoderma sp. utilized the sulfosulphuron as a sole carbon source and degraded it by cleaving sulfonyl urea bridge and sulfonylamide linkage. Thus, the application of Trichoderma sp., which is nonphytopathogenic, has the potential to decontaminate agricultural soil from sulfosulphuron load.
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Affiliation(s)
- U Yadav
- Govt. M. H. Autonomous College of Home Science and Science for Women, Rani Durgavati Vishwavidayalaya, Jabalpur, MP, India
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Yadav U, Solanki SL, Yadav R. Chronic myeloid leukemia with pregnancy: Successful management of pregnancy and delivery with hydroxyurea and imatinib continued till delivery. J Cancer Res Ther 2013; 9:484-6. [PMID: 24125987 DOI: 10.4103/0973-1482.119305] [Citation(s) in RCA: 9] [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: 02/07/2023]
Abstract
The concomitant occurrence of pregnancy and chronic myeloid leukemia is uncommon. We describe the successful management of a 30-year-old G3 P0, A2 woman who was diagnosed to have chronic myelogenous leukemia (CML) in the third trimester of her pregnancy with intra-uterine growth retardation and oligohydroamnios. She was started on hydroxyurea and imatinib, and was continued till delivery and beyond. The use of imatinib did not have any adverse effects on the fetus, except for low birth weight and low APGAR at birth, but the later progress of the child was normal. We conclude that imatinib and hydroxyurea can be continued even at the third trimester in a pregnant lady with CML, if necessary.
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Affiliation(s)
- Usha Yadav
- Department of Obstetrics and Gynaecology, Vardhman Mahaveer Medical College and Safdarjung Hospital, New Delhi, India
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Ashraf M, Sreejith P, Yadav U, Komath SS. Catalysis by N-acetyl-D-glucosaminylphosphatidylinositol de-N-acetylase (PIG-L) from Entamoeba histolytica: new roles for conserved residues. J Biol Chem 2013; 288:7590-7595. [PMID: 23341455 DOI: 10.1074/jbc.m112.427245] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We showed previously that Entamoeba histolytica PIG-L exhibits a novel metal-independent albeit metal-stimulated activity. Using mutational and biochemical analysis, here we identify Asp-46 and His-140 of the enzyme as being important for catalysis. We show that these mutations neither affect the global conformational of the enzyme nor alter its metal binding affinity. The defect in catalysis, due to the mutations, is specifically due to an effect on V(max) and not due to altered substrate affinity (or K(m)). We propose a general acid-base pair mechanism to explain our results.
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Affiliation(s)
- Mohammad Ashraf
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | | | - Usha Yadav
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Sneha Sudha Komath
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India.
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Rai V, Yadav U, Kumar P. Genotype prevalence and allele frequencies of 5,10-methylenetetrahydrofolate reductase (MTHFR) C677T mutation in two caste groups of India. Cell Mol Biol (Noisy-le-grand) 2012; 58 Suppl:OL1695-OL1701. [PMID: 22762524] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2012] [Accepted: 06/05/2012] [Indexed: 06/01/2023]
Abstract
The aim of the present study was to investigate the distribution of 5,10-methylenetetrahydrofolate reductase (MTHFR) polymorphism in two caste group populations of eastern Uttar Pradesh. This mutation has been suggested to be positively associated with the risk of several congenital and multifactorial disorders. Frequency of mutant T allele differs in various ethnic and geographical populations of the world. MTHFR C677T mutation analysis was carried out by PCR-RFLP (Polymerase Chain Reaction-Restriction Fragment Length Polymorphism) method and the samples studied were randomly selected from the healthy individuals belonging to two caste populations. In Brahmin samples, genotype frequencies of CC, CT and TT were 0.727, 0.25 and 0.023 respectively whereas in Rajput samples, CC genotype was observed in 88 samples, CT genotype in 25 and TT genotype was found in 2 samples. Frequency of mutant T allele was found to be 0.147 in Brahmin and 0.126 in Rajput populations. The percentage of CT genotype and C allele were high in both the populations.
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Affiliation(s)
- V Rai
- Human Molecular Genetics Laboratory, Department of Biotechnology, VBS Purvanchal University, Jaunpur-222001, India.
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Tanwar M, Dada T, Sihota R, Das TK, Yadav U, Dada R. Mutation spectrum of CYP1B1 in North Indian congenital glaucoma patients. Mol Vis 2009; 15:1200-9. [PMID: 19536304 PMCID: PMC2697458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2009] [Accepted: 06/10/2009] [Indexed: 11/12/2022] Open
Abstract
PURPOSE Mutations in Cytochrome P450 (CYP1B1) are a predominant cause of congenital glaucoma. This study was planned with the aim to identify the mutation profile of CYP1B1 in North Indian primary congenital glaucoma (PCG) patients. METHODS After ethical clearance, 50 congenital glaucoma patients and 50 ethnically matched controls were recruited in this study. Genomic DNA was isolated from the blood and trabecular meshwork, and CYP1B1 was screened for the six most prevalent mutations (termination at 223 [Ter@223], Gly61Glu, Pro193Leu, Glu229Lys, Arg368His, and Arg390Cys) by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). DNA sequencing was done to identify other mutations and for confirmation of RFLP positive samples. RESULTS On PCR-RFLP, 21/50 cases (42%) were found positive for one or more of these mutations. However, on sequencing, we found that 23/50 (46%) harbored the CYPIB1 mutations. Ter@223 was found in 18%, p.R390H in 16%, and p.R368H in 8% of cases. Three novel mutations, p.L24R, p.F190L, and p.G329D, were identified by DNA sequencing. Leucine, phenylalanine, and glycine are conserved at the 24th, 190th, and 329th position in the CYP1B1 protein in different species, suggestive of important functions at these loci. Ter@223 was found to be the most prevalent mutation in our patients while p.R368H was most prevalent in southern India. The difference in frequency and mutation profile may be due to the heterogeneous Indian population. Pathogenic CYP1B1 mutations impair anterior chamber development and differentiation by blocking the aqueous outflow and raising intraocular pressure (IOP). CONCLUSIONS Three novel mutations were identified in this study. Studies of pathogenic sequence variants in CYP1B1 in different populations may contribute to a better understanding of the disease pathogenesis. This may lead to the development of novel therapeutic approaches in the near future.
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Affiliation(s)
- Mukesh Tanwar
- Laboratory for Molecular Reproduction and Genetics, Department of Anatomy, AIIMS, New Delhi, India
| | - Tanuj Dada
- Dr. R.P. Centre for Ophthalmic Sciences, AIIMS, New Delhi, India
| | - Ramanjit Sihota
- Dr. R.P. Centre for Ophthalmic Sciences, AIIMS, New Delhi, India
| | - Taposh K. Das
- Electron Microscope Facility, AIIMS, New Delhi, India
| | - Usha Yadav
- Guru Nanak Eye Centre and Maulana Azad Medical College, Bahadur Shah Zafar Marg, New Delhi, India
| | - Rima Dada
- Laboratory for Molecular Reproduction and Genetics, Department of Anatomy, AIIMS, New Delhi, India
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