Manmohan Singhal

Dr. Manmohan Singhal

Public Health, Clinical Medicine, Pharmacology, DIT University, Dehra Dūn, Uttarakhand, International
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Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2010 in Journal of Advanced Pharmaceutical Technology & Research
Verified
Journal Article
Open access
SGShailly Gupta
Shailly Gupta
MGMathew George
Mathew George
MSManmohan Singhal
Manmohan Singhal
GSGaneshN Sharma
GaneshN Sharma
VGVikas Garg
Vikas Garg
This work has been done for the investigation of the anti-inflammatory and analgesic activity of methanol extract of dried leaves of Murraya koenigii Linn by oral administration at dose of 100, 200 and 400 mg/kg body weight, to healthy animals. Extract was studied for its anti-inflammatory activity by using carrageenan-induced hind paw edema in albino rats and the mean increase in paw volume and % inhibition in paw volume were measured plethysmometrically at different time intervals after carrageenan (1% w/v) injection. Extract was also evaluated for analgesic activity using Eddy's hot plate method and formalin induced paw licking method in albino rats. The methanol extract showed significant (P < 0.001) reduction in the carrageenan-induced paw edema and analgesic activity evidenced by increase in the reaction time by eddy's hot plate method and percentage increase in pain in formalin test. The methanol extract showed anti-inflammatory and analgesic effect in dose dependent manner when compared with the control and standard drug, diclofenac sodium (10mg/kg, p.o). These inhibitions were statistically significant (P < 0.05). Thus our investigation suggests a potential benefit of Murraya koenigii in treating conditions associated with inflammatory pain.

1 April 2014 in Journal of Saudi Chemical Society
Verified
Journal Article
Open access
MSManmohan Singhal
Manmohan Singhal
APArindam Paul
Arindam Paul
HSHemendra P. Singh
Hemendra P. Singh
In the present study we have designed a new pharmacophore ‘Chalconesemicarbazone’ by pharmacophore hybridization approach of drug design. A series of novel chalconesemicarbazones was synthesized and evaluated for their antioxidant activity by reducing power assay. Most of the compounds were found to be potent antioxidants. Free radicals play an important role in various pathological and xenotoxic effects so antioxidant may have protective role in these pathological conditions. Based on the results of reducing power assay 1-[1-(2,4-dihydroxyphenyl)-3-(2-hydroxyphenyl)allylidene]-4-(4-methylphenyl)semicarbazide (compound 18) and 1-[1-(2,5-dihydroxyphenyl)-3-(6-hydroxyphenyl)allylidene]-4-(4-methylphenyl)semicarbazide (compound 21) were the most active lead compounds. It was found that methoxy and hydroxyl substituted chalconesemicarbazones exhibited potent reducing power and unsubstituted compound showed less reducing potential

14 November 2023 in Molecules
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Journal Article
Open access
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NKNitu Kumari
Nitu Kumari
Santosh AnandSantosh Anand
Santosh Anand
KSKamal Shah
Kamal Shah
NCNagendra Singh Chauhan
Nagendra Singh Chauhan
NSNeeraj Kumar Sethiya
Neeraj Kumar Sethiya
MSManmohan Singhal
Manmohan Singhal
Neurological ailments, including stroke, Alzheimer’s disease (AD), epilepsy, Parkinson’s disease (PD), and other related diseases, have affected around 1 billion people globally to date. PD stands second among the common neurodegenerative diseases caused as a result of dopaminergic neuron loss in the midbrain’s substantia nigra regions. It affects cognitive and motor activities, resulting in tremors during rest, slow movement, and muscle stiffness. There are various traditional approaches for the management of PD, but they provide only symptomatic relief. Thus, a survey for finding new biomolecules or substances exhibiting the therapeutic potential to patients with PD is the main focus of present-day research. Medicinal plants, herbal formulations, and natural bioactive molecules have been gaining much more attention in recent years as synthetic molecules orchestrate a number of undesired effects. Several in vitro, in vivo, and in silico studies in the recent past have demonstrated the therapeutic potential of medicinal plants, herbal formulations, and plant-based bioactives. Among the plant-based bioactives, polyphenols, terpenes, and alkaloids are of particular interest due to their potent anti-inflammatory, antioxidant, and brain-health-promoting properties. Further, there are no concise, elaborated articles comprising updated mechanism-of-action-based reviews of the published literature on potent, recently investigated (2019–2023) medicinal plants, herbal formulations, and plant based-bioactive molecules, including polyphenols, terpenes, and alkaloids, as a method for the management of PD. Therefore, we designed the current review to provide an illustration of the efficacious role of various medicinal plants, herbal formulations, and bioactives (polyphenols, terpenes, and alkaloids) that can become potential therapeutics against PD with greater specificity, target approachability, bioavailability, and safety to the host. This information can be further utilized in the future to develop several value-added formulations and nutraceutical products to achieve the desired safety and efficacy for the management of PD.

2 August 2024 in Pharmacological Research - Modern Chinese Medicine
Verified
Journal Article
Open access
Mohit AgrawalMohit Agrawal
Mohit Agrawal
MSManmohan Singhal
Manmohan Singhal
BSBhupesh Chander Semwal
Bhupesh Chander Semwal
SASwamita Arora
Swamita Arora
BSBhoopendra Singh
Bhoopendra Singh
Shivendra KumarShivendra Kumar
Shivendra Kumar

25 March 2012 in ISRN Dermatology
Verified
Journal Article
Open access
PDF file
MSManmohan Singhal
Manmohan Singhal
NKNiraj Kansara
Niraj Kansara
The aim of present study was to determine the antipsoriatic activity of newly formulated O/W creams of methanolic extract of Cassia tora L. leaves by using ultraviolet-B-induced psoriasis in rat. The plant Cassia tora L. is traditionally claimed to be useful in the treatment of a number of skin diseases. However, there are no established scientific reports for its antipsoriatic activity. Methanolic Cassia tora L. leaves extract was used to prepare various concentrations of O/W creams and tested for acute dermal toxicity study. The different O/W creams showed good physical characteristics and passed the sensitivity, irritation, grittiness and bleeding test. The results of acute dermal toxicity showed that the creams were safe up to the dose of 2000 mg/kg. In case of psoriasis model, histopathological analysis revealed that there were absence of Munro's microabscess, elongation of rete ridges, and capillary loop dilation in the section in Test 2 (0.1%) and standard group. O/W creams and methanolic extract of Cassia tora L. leaves exhibited significant reduction in percentage of relative epidermal thickness and spleen index as compared to positive control. We concluded that topical O/W creams and crude extract containing methanolic extract of Cassia tora L. leaves have potent antipsoriatic activity in ultraviolet-B-induced psoriasis in rat.

1 February 2022 in Current Pharmaceutical Design
Verified
Journal Article
Closed access
PDF file
FHFaiza Idris Himasa
Faiza Idris Himasa
MSManmohan Singhal
Manmohan Singhal
AOAbhijeet Ojha
Abhijeet Ojha
BKBhavna Kumar
Bhavna Kumar
Diabetic retinopathy is a posterior eye disorder in which damage occurs to the light sensitive retina due to diabetes mellitus. This disorder specifically affects people aged between 18-64 with type ІІ diabetes. This disease progresses through different pathophysiological pathways, which include oxidative stress, inflammation, stimulation of the growth factor in the eye’s vasculature, isoforms of protein kinase C, and also the activation of the hexosamine pathway. It starts as micro aneurysms and advances in complicated stage, which results in retinal detachment. Treatment of posterior eye diseases has complications due to the structural design of the eye and physiological barriers present. The current treatment approach involves the use of intravitreal anti- VEGFs, corticosteroids implants, laser and surgery; these treatment methods have drawbacks attributed to them despite their benefits. The development of a robust delivery system with minimal or no invasion to tackle the issues of diabetic retinopathy will be of considerable benefit to patients having diabetic retinopathy; the dependency on ophthalmologists for multiple injections will significantly reduce and provide a promising approach in drug delivery. In this review article, the authors provided information related to existing treatment methods available for diabetic retinopathy, the most significant among which is nanotechnology approach through which local delivery via the ocular route to posterior eye can be achieved. It also possesses the various carriers studied for the non-invasive approach for retinal delivery of medicaments. Non-invasive approach for delivery of drugs can be considered as potential for the treatment of diabetic retinopathy.