Sunil K. Gupta

National Botanical Research Institute

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Vivek Pandey

National Botanical Research Institute

Marisha Sharma

University College of Medical Sciences

Farah Deeba

Central Institute of Medicinal and Aromatic Plants

Vivek K. Maurya

National Botanical Research Institute

Baisakhi Majumder

National Botanical Research Institute

T. A. Aire

St. George's University

Jiao‐Lin Zhang

Xishuangbanna Tropical Botanical Garden

Lizette du Plessis

University of Pretoria

Richard J. Riopelle

McGill University

John L. Turk

Royal College of Surgeons of England

Cooperative Institutions

National Botanical Research Institute

Tata Memorial Hospital

University of Ottawa

Chinese Academy of Sciences

Xishuangbanna Tropical Botanical Garden

Ottawa Regional Cancer Foundation

Council of Scientific and Industrial Research

University of Lucknow

Ottawa Hospital

Mater Misericordiae University Hospital

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Tropospheric ozone is a catastrophe, and ethylenediurea (EDU) is a phytoprotectant, recent reports on climate change scenario: A review

Atmospheric Pollution Research (2023)

Sunil K. Gupta Yang Da Yun‐Bing Zhang Vivek Pandey Jiao‐Lin Zhang

Tropospheric ozone

10.1016/j.apr.2023.101907

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Citations (7)

Spermiogenesis in the cattle egret (Bubulcus ibis)

Tissue and Cell (2020)

Narindra H. Roopnarine Sunil K. Gupta Lizette du Plessis T. A. Aire

Avian species comprise more than half of all vertebrates yet there is a dearth of information regarding spermatid development in this class of animals. This report of spermiogenesis in the cattle egret, Bubulcus ibis, is the first in the order Pelecaniformes. Five sexually mature and reproductively active male cattle egrets were captured in the wild, humanely euthanized, the reproductive organs dissected out, and tissues from the testes routinely prepared for transmission electron microscopy. Twelve steps of spermatid development, using the step-wise system, were determined. Acrosomogenesis in the egret results in a relatively short, solid, bullet-shaped acrosome that ends bluntly anteriorly and flat posteriorly or basally. The nucleus displays remarkable morphological changes, with the anterior end of the mature spermatid becoming flat, lacking a rostrum and an endonuclear canal. A perforatorium does not develop. It is noteworthy that a longitudinal, but not a circular, manchette develops during spermiogenesis in this bird. The proximal centriole is attached to the nucleus, at the implantation fossa, by means of well-formed, electron dense struts of material. An amorphous fibrous sheath develops in the principal piece. The interesting development and peculiar features of the acrosome and nucleus, as well as the absence of the perforatorium and circular manchette in the spermatozoon of the cattle egret, may be of phylogenetic significance.

Spermiogenesis

Spermatid

Rostrum

Axoneme

10.1016/j.tice.2020.101457

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Citations (1)

Spermatid differentiation, with particular reference to acrosomogenesis, in the passeridan bird, Carib grackle (Quiscalus lugubris)

Tissue and Cell (2019)

T. A. Aire Lizette du Plessis Eugene Rennie Sunil K. Gupta Mahesh Deokar

Spermatid

Spermiogenesis

Spermatozoon

Centriole

Axoneme

10.1016/j.tice.2019.08.002

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Citations (4)

Connective tissue growth factor: Potential role in glomerulosclerosis and tubulointerstitial fibrosis

Kidney International (2000)

Sunil K. Gupta Michael Clarkson Joseph Duggan Hugh R. Brady

Glomerulosclerosis

10.1046/j.1523-1755.2000.00301.x

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Citations (290)

Development of software to calculate the biological effect of different fractionation schedules in model tumours

Springer eBooks (2000)

David E. Wilkins Sunil K. Gupta Joanna Cygler G. P. Raaphorst

Position (finance)

10.1007/978-3-642-59758-9_91

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Citations (0)

Glial-Neuronal Interactions Exemplified by the Synthesis and Actions of Ciliary Neurotrophic Factor

Springer eBooks (1993)

P. M. Richardson Sunil K. Gupta S. Carbonetto Robert Dunn Richard J. Riopelle

Ciliary neurotrophic factor

Peripheral Nervous System

Neuroglia

10.1007/978-1-4757-9486-1_15

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Citations (2)

Performance of garden pea (Pisum sativum) cultivars in high altitude cold desert of Ladakh

The Indian Journal of Agricultural Sciences (2006)

Ankur Agarwal Sunil K. Gupta Zulfiqar Ahmed

A study was conducted during 2004 at Field Research Laboratory Research Station at Partapur, Nubra valley, Siachen sector of Ladakh during Apri Ito September 2004 to evaluate 8 cultivars ofpea (PiSU1Jl sativulJl L.), viz' Arkel', Lincoln', 'Pusa Pragati', 'Matar Ageta 6', 'VL 7', 'Azad Pea 3', 'Pant Sabji Matar 3' and PMR 4'. The results revealed the earliness (42.6 days) in 'Matar Ageta 6' while 'Lincoln' and 'PMR 4' took maximum tinle (64-65 days) for first pod picking. Days to 50% flowering varied from 42.6-58.0 days. Number ofpods/plant varied from 7.33 ('Matar Ageta 6') to 19.00 ('PMR 4'). Average pod weight varied from 4.80 ('Pusa Pragati') to 6.07 g ('PMR 4'). Pod yield/plant was the maximum in 'PMR 4' (92.67 g) followed by 'Lincoln' (89.33 g), whereas 'Matar Ageta 6' gave the minimum (29.33 g).

Pusa

Field pea

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Citations (4)

Chemotherapy in biliary tract carcinomas: Results in India

Seminars in Oncology (2002)

Dinesh Chandra Doval JS Sekhon Sunil K. Gupta Sunil K. Gupta B.S. Awasthy

Carboplatin

10.1016/s0093-7754(02)70026-2

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Citations (4)

Salicylic acid mediated growth, physiological and proteomic responses in two wheat varieties under drought stress

Journal of Proteomics (2017)

Marisha Sharma Sunil K. Gupta Baisakhi Majumder Vivek K. Maurya Farah Deeba

Drought Tolerance

Osmolyte

Plant Physiology

Defence mechanisms

10.1016/j.jprot.2017.05.011

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Citations (109)

Identification of alpha 1-adrenergic receptor subtypes in human corpus cavernosum tissue and in cultured trabecular smooth muscle cells.

PubMed (1995)

AM Traish Sunil K. Gupta Paul Toselli de Tejada Is Irwin Goldstein

Recent pharmacological and functional studies have suggested the presence of more than one alpha-1 adrenergic receptor subtype in human corpus cavernosum (HCC). In this study, we sought to identify the alpha-1 adrenergic receptor (alpha 1-AR) subtypes expressed in HCC whole tissue and in trabecular smooth muscle subcultured from this tissue. We have utilized RNase protection assays and in situ hybridization (ISH) techniques to identify and localize these receptor subtypes. RNase protection assays of mRNA isolated from whole tissue demonstrated the presence of mRNA transcripts for three alpha 1-AR receptor subtypes (alpha 1d, alpha 1b, and alpha 1a). alpha 1d-AR and alpha 1a-AR appear to be more abundant than alpha 1b-AR. The identification and localization of mRNA for alpha 1-AR subtypes in whole tissue was demonstrated by RNA protection assays and ISH analysis. Immunocytochemical analysis of alpha 1-AR by an antipeptide antibody developed against a specific amino acid sequence derived from alpha 1d-AR subtype demonstrated specific staining of the smooth muscle cells, suggesting the expression of alpha 1d-AR subtype. In cultured HCC smooth muscle cells (HCC SMC), phenylephrine,alpha 1-AR agonist stimulated Na+/K+ ATPase activity, suggesting the presence of functional alpha 1-AR. RNase protection assay of mRNA isolated from HCC SMC grown in culture further demonstrated the presence of mRNA transcripts for alpha 1d-AR and alpha 1a-AR subtypes. ISH analysis and confocal microscopy also indicate that the SMC express the alpha 1d-AR and alpha 1a-AR subtypes. The data presented suggests that HCC and SMC derived from this tissue express at least three alpha 1-AR subtypes. Identification of these receptor subtypes should allow characterization of the functional role of these receptor subtypes in regulation of trabecular smooth muscle tone and penile detumescence.

Alpha (finance)

Nuclease protection assay

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Citations (43)