74 results on '"SubbaRao, M."'
Search Results
2. Corrigendum to "Behavior Change Interventions to Address Unhealthy Food Consumption: A Scoping Review" [Current Developments in Nutrition 8 (2024) 102104].
- Author
-
Kachwaha S, Kim SS, Das JK, Rasheed S, Gavaravarapu SM, Rana PP, and Menon P
- Abstract
[This corrects the article DOI: 10.1016/j.cdnut.2024.102104.]., (© 2024 The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
3. Implementation, delivery, and utilization of iron fortified rice supplied through public distribution system across different states in India: An exploratory mixed-method study.
- Author
-
Nandeep ER, Mahajan H, Mummadi MK, Sairam C, K V, Kadiyam J, Meshram I, Pagidoju S, Reddy VR, Panda H, Pullakandham R, Geddam JJB, Gavaravarapu SM, R H, and Reddy N S
- Abstract
Food fortification with micronutrients is one of the cost-effective and sustainable methods to prevent micronutrient deficiencies at community level. The rice fortified with iron, folic acid, and vitamin B12 is being supplied through various social welfare schemes in India in a phased manner and planned to cover the entire country by March 2024. We have conducted a situational analysis to assess the rollout of fortified rice supplied through the Public Distribution System (PDS) and to evaluate the accessibility, availability, acceptability, and utilization of fortified rice by the beneficiaries of the PDS. This was a mixed-method, sequential exploratory study conducted in six districts from six different states of India that had begun distribution of fortified rice through PDS in pilot mode during 2020-2021. In each district, the district supply officer of the PDS, Food Corporation of India (FCI) or State Food Corporation (SFC) warehouse supervisor, and four Fair Price Shop (FPS) dealers were interviewed. Under each FPS, a minimum of seven beneficiary households were randomly selected and interviewed using a structured questionnaire. The in-depth interviews were conducted with different stakeholders using theme guides. All the interviewed stakeholders were aware about their roles and responsibilities and purpose to distribute fortified rice. There was a continuous supply of fortified rice (across all visited districts) to beneficiaries through a well-established system. Acceptability and compliance to intake of fortified rice was good with no reported gastrointestinal adverse outcomes following fortified rice intake. There was an efficient roll-out of fortified rice though PDS with a good compliance to intake of fortified rice. It is feasible to design and conduct a study to assess the impact of fortified rice on anemia and iron storage at the community level., Competing Interests: The authors have declared that no competing interest exist., (Copyright: © 2024 Nandeep et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2024
- Full Text
- View/download PDF
4. Flow and On-Water Synthesis and Cancer Cell Cytotoxicity of Caffeic Acid Phenethyl Amide (CAPA) Derivatives.
- Author
-
Saucedo A, Subbarao M, Jemal M, Mesa-Diaz NL, Smith JL, Vernaza A, Du L, and Kerwin SM
- Subjects
- Humans, HeLa Cells, Water chemistry, Cell Line, Tumor, Amides pharmacology, Amides chemistry, Cell Survival drug effects, Caffeic Acids pharmacology, Caffeic Acids chemistry, Caffeic Acids chemical synthesis, Antineoplastic Agents pharmacology, Antineoplastic Agents chemical synthesis, Antineoplastic Agents chemistry, Phenylethyl Alcohol analogs & derivatives, Phenylethyl Alcohol pharmacology, Phenylethyl Alcohol chemistry, Phenylethyl Alcohol chemical synthesis
- Abstract
Caffeic acid phenethyl ester (CAPE) is a phenolic natural product with a wide range of biological activities, including anticancer activity; however, the ester group of CAPE is metabolically labile. The corresponding amide, CAPA, has improved metabolic stability but limited anticancer activity relative to CAPE. We report the synthesis using flow and on-water Wittig reaction approaches of five previously reported and five novel CAPA analogues. All of these analogues lack the reactive catechol functionality of CAPA and CAPE. Cytotoxicity studies of CAPE, CAPA, and these CAPA analogues in HeLa and BE(2)-C cells were carried out. Surprisingly, we found that CAPA is cytotoxic against the neuroblastoma BE(2)-C cell line (IC
50 = 12 µM), in contrast to the weak activity of CAPA against HeLa cells (IC50 = 112 µM), and the literature reports of the absence of activity for CAPA against a variety of other cancer cell lines. One novel CAPA analogue, 3f , was identified as having cytotoxic activity similar to CAPE in HeLa cells (IC50 = 63 µM for 3f vs. 32 µM for CAPE), albeit with lower activity against BE(2)-C cells (IC50 = 91 µM) than CAPA. A different CAPA analogue, 3g , was found to have similar effects against BE(2)-C cells (IC50 = 92 µM). These results show that CAPA is uniquely active against neuroblastoma cells and that specific CAPA analogues that are predicted to be more metabolically stable than CAPE can reproduce CAPA's activity against neuroblastoma cells and CAPE's activity against HeLa cells.- Published
- 2024
- Full Text
- View/download PDF
5. One-Pot Synthesis of N -Fused Benzimidazo-β-carbolines through Sequential Propargylation/ aza -Cycloisomerization Approach.
- Author
-
Reddy CR, Nair K, Srinivasu E, Subbarao M, and Grée R
- Abstract
The first sequential acid-catalyzed propargylation/base-mediated aza -cycloisomerization between indolyl-benzimidazoles and propargylic alcohols is described. This protocol enables the one-pot construction of N -fused benzimidazo-β-carbolines in good yields. The synthetic utility of this approach is demonstrated by the assembly of an aza -helicene and also by a gram-scale reaction.
- Published
- 2024
- Full Text
- View/download PDF
6. Behavior Change Interventions to Address Unhealthy Food Consumption: A Scoping Review.
- Author
-
Kachwaha S, Kim SS, Das JK, Rasheed S, Gavaravarapu SM, Pandey Rana P, and Menon P
- Abstract
High intakes of sodium, sugar, saturated fats, and trans-fats contributed to 187.7 million disability adjusted life years from noncommunicable diseases globally. Understanding of the global evidence on interventions to reduce consumption of various types of unhealthy food across diverse contexts is needed. We conducted a scoping review to examine the existing evidence on behavior change interventions (BCIs) to address unhealthy food consumption. Through a systematic search of 3 databases conducted in December 2022, 2730 records were retrieved, and 145 studies met the eligibility criteria for review. Only 19% of the studies ( n = 28) were from low- and middle-income countries. The key target group for most BCIs was adults ≥20 y ( n = 79). Interventions were conducted across 7 types of settings: schools ( n = 52), digital ( n = 30), community ( n = 28), home ( n = 14), health facility ( n = 12), worksite ( n = 6), and market ( n = 3). There were 4 mutually inclusive intervention types-information, education, and communication ( n = 141); food/beverage substitution ( n = 10); interactive games ( n = 7); and labeling/warnings at point-of-purchase ( n = 3). The study outcomes included consumption of sugar-sweetened beverages ( n = 74), packaged salty snacks/fast food ( n = 61), sweets ( n = 43), and saturated fat ( n = 41). Drivers of food choice behaviors, such as knowledge, attitudes, and beliefs; motivation and expectancies; and self-efficacy were reported in 43% of studies. On the basis of reported impact of BCIs on study outcomes, more interventions targeted at adults had positive impacts compared with those targeted at children; intervention packages, including multiple information, education, and communication components also reported impacts more often than single informational interventions. Interpretation of the findings was complicated by the lack of comparability in interventions, evaluation designs, outcome measures of unhealthy food consumption, duration of interventions, and study contexts. Future studies should invest in critical yet underrepresented regions, examine behavioral determinants of unhealthy food consumption and the sustainability of behavior change, and conduct further analysis of effectiveness from experimental studies., (© 2024 The Authors.)
- Published
- 2024
- Full Text
- View/download PDF
7. Dearomative ipso -Cyclization to Spiropseudoindoxyls: An Extendable Approach To Access Indolo[3,2- c ]quinolinones and Isocryptolepine.
- Author
-
Reddy CR, Theja A, Srinivasu E, and Subbarao M
- Abstract
A metal-free oxidative intramolecular dearomative spirocyclization of indole-3-formyl-2-carboxamides has been developed for the first time, affording spiropseudoindoxyls in good yields. This domino process proceeds through sequential oxidation, decarboxylation and ipso -arylation. The unique feature of this approach includes the compatibility of N -protected-indole-2-carboxamides. Further, a hitherto unknown rearrangement of spiropseudoindoxyls to indoloquinolones has been achieved. The synthetic utility of this strategy has also been showcased by the construction of a natural alkaloid, isocryptolepine.
- Published
- 2024
- Full Text
- View/download PDF
8. Unveiling the anticancer mechanism of 1,2,3-triazole-incorporated thiazole-pyrimidine-isoxazoles: insights from docking and molecular dynamics simulations.
- Author
-
Sireesha R, Pavani Y, Mallavarapu BD, Abbasi BA, Guttula PK, and Subbarao M
- Abstract
Cancer is a major global health concern, and the constant search for novel, selective anticancer compounds with low toxicity is never ending. Nitrogen heterocyclic compounds such as pyrimidine and triazole have been identified as potential candidates for cancer treatment. A novel series of 1,2,3-triazole incorporated thiazole-pyrimidine-isoxazole derivatives 10 (a-j ) were designed, synthesized and evaluated for antitumorigenic activities against human breast cancer (MCF-7), human lung cancer (A549) and human prostate (PC3 & DU-145) various cell-lines by employing MTT assay using etoposide as the positive control. The synthesized hybrids yielded decent efficacy, which was further compared with the standard drug. Among all the molecules, 10h revealed the more potent anticancerous activities, having IC
50 values ranging from 0.011 ± 0.0017 µM; 0.063 ± 0.0012 µM; 0.017 ± 0.0094 µM and 0.66 ± 0.072 µM with DU145 , PC3 , A549 , and MCF7 cell-lines, respectively. Tubulin, being a major protein involved with diverse biological actions, also serves, as a crucial target for several clinically practiced anticancer drugs, was utilized for docking analyses to evaluate the binding affinity of ligands. Docking results demonstrates that the selected hybrids 10 (g-j) exhibited good binding affinities with protein. Subsequently, drug likeness studies were carried out on the synthesized compounds to evaluate and analyze their drug like properties such as absorption, distribution, metabolism, excretion, and toxicity (ADMET) for toxicity prediction. Based on these analyses, the selected complexes were further employed for molecular dynamic simulations to analyze stability via an exhaustive cumulative 200 nanoseconds simulation. These results suggest that the selected compounds are stable and might serve as potential inhibitors to tubulin complex. In conclusion, we propose these synthesized compounds 10 (g-j) might provide new insights into cancer treatment and have potential for future development.Communicated by Ramaswamy H. Sarma.- Published
- 2023
- Full Text
- View/download PDF
9. Seleno/Thio-functionalized ipso -Annulation of N -Propiolyl-2-arylbenzimidazole to Construct Azaspiro[5,5]undecatrienones.
- Author
-
Reddy CR, Srinivasu E, and Subbarao M
- Abstract
Till date, the ipso -cyclization of propiolamides is limited to provide azaspiro[4,5]decatrienones. Herein, we present the first example of ipso -carbocyclization, leading to azaspiro[5,5]-undecatrienones from N -propiolyl-2-arylbenzimidazoles, involving both the radical-based and electrophilic reactions. This report establishes an access to a wide range of chalcogenated (SCN/SCF
3 /SePh) benzimidazo-fused azaspiro[5,5]undecatrienones in good yields.- Published
- 2023
- Full Text
- View/download PDF
10. Are advertising policies affirmative in restricting the marketing of foods high in fat, salt and sugar (HFSS) in India?: evidence from SWOT Analysis.
- Author
-
Bassi S, Bahl D, Gopal S, Sethi V, Backholer K, Gavaravarapu SM, Babu GR, Ghosh-Jerath S, Bhatia N, Aneja K, Kataria I, Mishra P, De Wagt A, and Arora M
- Abstract
The regulatory Indian environment for advertising high fat, salt, and sugar (HFSS) foods and non-alcoholic beverages, on various media was reviewed. Identified national-level policies were categorised as mandatory or self-regulatory based on legal content. For each mandatory regulation, Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis was undertaken to determine how existing policies could be strengthened to safeguard children from unhealthy food advertisements. Thirteen policies (nine mandatory; four self-regulatory) relevant to advertising in India were identified. Of the nine mandatory policies, Guidelines for Prevention of Misleading Advertisements and Endorsements for Misleading Advertisements, 2022, is the only policy that restricts HFSS food advertisements to children across all media. There are key shortfalls, including limited scope of 'child-targeted' advertisements and lack of criteria to define HFSS foods. A robust regulatory framework is needed to protect children from HFSS food marketing, not just what is 'directed' at them, with clear evidence-based food classification criteria., Competing Interests: None., (© 2023 The Author(s).)
- Published
- 2023
- Full Text
- View/download PDF
11. Advancing large-scale production of TEV protease through an innovative NT* tag-based fusion construct.
- Author
-
Parida PP, Saraswathi D, Mopidevi SMV, and Raran-Kurussi S
- Abstract
Tobacco etch virus Protease (TEVp), a cysteine protease, is renowned for its remarkable specific proteolysis, making it an invaluable tool for removing fusion tags from recombinant proteins. However, TEV protease's inherent insolubility limits its broad application. Fusion constructs like an N-terminal MBP fusion, known for its improved solubility, have been employed for TEVp production to address this issue. In this study, we fused the TEVp with the N-terminal domain of the spider silk protein, specifically utilizing a charge-reversed mutant (D40K/K65D) of the N-terminal domain of major ampullate spidroin-1 protein from Euprosthenops australis , referred to as NT*. This fusion construct contains a TEVp cleavage site, enabling intracellular self-processing and the release of a His
7 -tagged protease. The significant increase in soluble protein expression allowed us to purify approximately 90-100 mg of TEVp from a 1-L E. coli culture, surpassing previous findings by a considerable margin. The enzyme remained stable and catalytically active even after several months of storage in a deep freezer (-80 °C)., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2023 The Authors.)- Published
- 2023
- Full Text
- View/download PDF
12. Diets, Lifestyles and Metabolic Risk Factors among Corporate Information Technology (IT) Employees in South India.
- Author
-
Banerjee P, Reddy GB, Panda H, Angadi KK, Reddy T, and Gavaravarapu SM
- Subjects
- Humans, Adult, Information Technology, Life Style, Risk Factors, Diet, Workplace, Metabolic Syndrome epidemiology, Metabolic Syndrome etiology
- Abstract
(1) Information Technology (IT) Business Process Outsourcing (BPO), the largest employment sector of India, contributes to rapid economic growth. However, the work of IT employees is sedentary, and the food environments of their worksites expose them to an obesogenic environment. This study aimed to assess their metabolic and lifestyle risk factors. (2) Methods: To examine the health and nutrition status of IT employees, anthropometric, biochemical and clinical assessments were conducted among 183 employees from three IT organizations of varied operational sizes. Their health-, diet- and physical activity-related practices were assessed using a questionnaire. The prevalence of MetS was assessed. Selected biomarker levels were assessed and associated with their self-perceived stress levels. (3) Results: The median age of the employees was 30 years (26-35 years). While 44.02% of employees were overweight, 16.85% of employees were obese. About 3.89% of employees were found to be diabetic, and HDL-C levels were lower than recommended in 64.93% of employees. In all, 29.87% of the study population were considered to have metabolic syndrome since they had metabolic risk scores ≥ 3. Those with metabolic syndrome were significantly older ( p = 0.000), and levels of MDA ( p = 0.003), homocysteine ( p = 0.001), IL-6 ( p = 0.017) and IL-4 ( p = 0.000) were significantly higher among them. Although the prevalence of MetS was significantly lower among those aged >30 years, the lifestyle risk factors were significantly higher among them. (4) Conclusions: The assessed parameters indicate a high risk of developing NCDs among employees in the IT industry in India. This shows the need for the modification of lifestyle and workplace food and physical activity environments.
- Published
- 2023
- Full Text
- View/download PDF
13. World Children's Day 2022: power, policy, and children's rights to nutrition.
- Author
-
Zorbas C, Jeyapalan D, Peeters A, Kapeke K, Sethi V, Murira Z, Gavaravarapu SM, and Backholer K
- Subjects
- Child, Humans, Policy, Nutritional Status, Human Rights, Child Welfare
- Published
- 2023
- Full Text
- View/download PDF
14. Methotrexate suppresses psoriatic skin inflammation by inhibiting muropeptide transporter SLC46A2 activity.
- Author
-
Bharadwaj R, Lusi CF, Mashayekh S, Nagar A, Subbarao M, Kane GI, Wodzanowski KA, Brown AR, Okuda K, Monahan A, Paik D, Nandy A, Anonick MV, Goldman WE, Kanneganti TD, Orzalli MH, Grimes CL, Atukorale PU, and Silverman N
- Subjects
- Mice, Animals, Inflammation, Peptidoglycan metabolism, Epithelial Cells metabolism, Nod1 Signaling Adaptor Protein metabolism, Nod2 Signaling Adaptor Protein metabolism, Immunity, Innate, Mammals, Methotrexate pharmacology, Dermatitis
- Abstract
Cytosolic innate immune sensing is critical for protecting barrier tissues. NOD1 and NOD2 are cytosolic sensors of small peptidoglycan fragments (muropeptides) derived from the bacterial cell wall. These muropeptides enter cells, especially epithelial cells, through unclear mechanisms. We previously implicated SLC46 transporters in muropeptide transport in Drosophila immunity. Here, we focused on Slc46a2, which was highly expressed in mammalian epidermal keratinocytes, and showed that it was critical for the delivery of diaminopimelic acid (DAP)-muropeptides and activation of NOD1 in keratinocytes, whereas the related transporter Slc46a3 was critical for delivering the NOD2 ligand MDP to keratinocytes. In a mouse model, Slc46a2 and Nod1 deficiency strongly suppressed psoriatic inflammation, whereas methotrexate, a commonly used psoriasis therapeutic, inhibited Slc46a2-dependent transport of DAP-muropeptides. Collectively, these studies define SLC46A2 as a transporter of NOD1-activating muropeptides, with critical roles in the skin barrier, and identify this transporter as an important target for anti-inflammatory intervention., Competing Interests: Declaration of interests A provisional patent on targeting SLC46s to inhibit inflammation in psoriasis and other auto-inflammatory diseases has been filed by some of the authors (N.S., R.B., and M.H.O.). T.-D.K. consults for Pfizer., (Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
15. Knowledge, attitude and practices related to pesticide usage among farmers: Findings from a hospital based cross-sectional study.
- Author
-
Pandiyan A, Lari S, Vanka J, Gavaravarapu SM, Jee B, and Jonnalagadda PR
- Subjects
- Humans, Female, Farmers, Cross-Sectional Studies, Health Knowledge, Attitudes, Practice, Agriculture, Pesticides toxicity, Occupational Exposure adverse effects, Occupational Exposure prevention & control
- Abstract
Background: In India, where agriculture is the prime occupation among the rural population, farmers are extensively using pesticides in crop production without taking adequate precautions., Objective: The current study aimed to examine pesticide usage patterns, usage of personal protective equipment (PPE), knowledge on pesticide toxicity, and attitude towards occupational safety among farmers diagnosed with leukaemia (n = 60), lymphoma (n = 33), and breast cancer (n = 30) visiting a tertiary cancer care hospital in Hyderabad, India., Methods: Face-to-face interviews were conducted using a pre-tested questionnaire and the data collected were analysed with statistical software SPSS 23., Results: The survey revealed that the participants had an average of 19.6 years of farming experience and women were predominantly involved in the mixing of pesticides and other agricultural work apart from spraying. All of them were not using any PPE and the majority of them did not have any knowledge on the route of exposure, toxicity symbols, and safe handling of pesticides. Statistical analysis showed no significant association between educational status and knowledge, attitude and practices (p > 0.05)., Conclusion: Even though the majority of the farmers were educated, their lack of adequate knowledge on pesticides had enabled them to adopt risky behaviours in handling and storage of pesticides. There is a need for continuous training programs for farmers to promote awareness and minimize the hazards of occupational exposure.
- Published
- 2023
- Full Text
- View/download PDF
16. Can foodporn prime healthy eating? Thinking beyond digital gazing and satiety.
- Author
-
Seal A, Gavaravarapu SM, and Konapur A
- Subjects
- Humans, Internet, Food Preferences psychology, Satiation, Eating, Feeding Behavior, Diet, Healthy, Choice Behavior
- Abstract
The uprise of digital media has bypassed the language and cultural barriers of communicating about food with peers. Sharing exaggeratively glamourized food visuals with fancy hashtags and folksonomy, generally termed as Foodporn, is "trendy". Exposure to Foodporn affects food choices, directly or indirectly, through psychological, physiological and psychosocial means. Though unhealthy connotation is often attributed to foodporn, this perspective article implores that the plausible potential to alluring food pictures to prompt healthy food choices, be explored. Can foodporn be effectively used for e-priming (electronically priming) healthy food choices by glamourizing and idealizing healthy foods?, (© 2022. The Author(s), under exclusive licence to Springer Nature Limited.)
- Published
- 2022
- Full Text
- View/download PDF
17. Access to Diverse Seleno-spirocyclohexadienones via Ag(II)-Catalyzed Selenylative ipso -Annulation with Se and Boronic Acids.
- Author
-
Raji Reddy C, Subbarao M, Kolgave DH, Ajaykumar U, and Vinaya PP
- Abstract
An efficient and straightforward synthesis of diversified seleno-azaspiro-2,5-cyclohexadienones from N -(4-methoxy aryl)propiolamides using elemental selenium and boronic acids has been demonstrated. The reaction proceeds through silver-catalyzed oxidative dearomatization in the presence of potassium persulfate (K
2 S2 O8 ) as the oxidant. Further, this approach was extended to N -(4-methoxy aryl)propiolates and biaryl ynones to access the corresponding selenylated oxospiro-2,5-cyclohexadienones and spiro[5,5]trienones, respectively. The present three-component method offers the diverse substitutions on selenium involving two C-Se and one C-C bond formations., Competing Interests: The authors declare no competing financial interest., (© 2022 The Authors. Published by American Chemical Society.)- Published
- 2022
- Full Text
- View/download PDF
18. Nutritional requirements for the elderly in India: A status paper.
- Author
-
Tattari S, Gavaravarapu SM, Pullakhandam R, Bhatia N, Kaur S, Sarwal R, Rajkumar H, and Reddy GB
- Subjects
- Adult, Humans, Aged, Nutritional Status, Nutritional Requirements, Body Weight, India, Quality of Life, Diet
- Abstract
Advances in the medical field and healthcare sector during the last few decades have resulted in increased longevity. Increased lifespans have in turn led to a rapid global rise of the elderly population. However, ensuring the health and quality of life, especially in the context of chronic age-related ailments, among the growing geriatric population is a challenge. Ageing is associated with several changes in body composition including a decline in the lean body mass usually accompanied by an increase in body fat content which have a bearing on the nutrient requirements for the elderly. The nutrient requirements currently recommended for Indian adults are primarily computed using a factorial approach, that considers the cumulative loss of nutrients and is adjusted for optimal body weights and bioavailability. It is logical that physiological and metabolic changes associated with ageing influence several of these factors: body weight, lean mass, energy expenditure, nutrient retention and bioavailability and thus alter nutrient requirements compared to the adult population. Acknowledging these age-related changes, some international organizations have suggested nutrient requirements specific to the elderly. Given the contextual differences in physiology, caution needs to be exercised in adopting these guidelines for the Indian elderly. In addition, in the Indian context, there is sparse information on the diet and nutrient intakes vis-à -vis nutritional status and physiology of the elderly. This status paper highlights some of the pertinent issues related to nutritional requirements for the elderly that advocate a need for deriving nutritional requirements for the elderly in India.
- Published
- 2022
- Full Text
- View/download PDF
19. The 5 A's Approach for Contextual Assessment of Food Environment.
- Author
-
Konapur A, Gavaravarapu SM, and Nair KM
- Subjects
- Child, Cross-Sectional Studies, Food Supply, Humans, India, Commerce, Food
- Abstract
Objective: To develop a context-specific methodology to assess the 5 A's of food environment: availability, accessibility, affordability, acceptability, and accommodation., Design: Cross-sectional mixed-methods study. Availability of foods was assessed by on-site observation and interviewing vendors. To assess accessibility, buffer zones around food stores were created using geographic information systems. Affordability was controlled by selecting participants from the middle-income group. Accommodation and acceptability were assessed by interviewing vendors and caregivers., Setting: Villages of Ghatkesar subdistrict (n = 4), Telangana, South India., Participants: Caregivers of children aged 6-10 years (n = 160) and food vendors (n = 68)., Analysis: The quality of the 5 A's was graded on the basis of concurrence between actual and perceived measures., Results: The actual and perceived 5 A's for semiperishable foods matched, and hence the food environment was graded as good across the villages. However, for perishable foods, the food environment was graded as poor with respect to accommodation and acceptability in all villages; and with respect to availability and affordability in at least 2 villages as the actual and perceived measures did not match., Conclusions and Implications: This study demonstrated the use of context-specific methods to assess the 5 key dimensions of the food environment, which can be attempted in other contexts with suitable modifications., (Copyright © 2022 Society for Nutrition Education and Behavior. Published by Elsevier Inc. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
20. Impact of 'infodemic in pandemic' on food and nutrition related perceptions and practices of Indian internet users.
- Author
-
Gavaravarapu SM, Seal A, Banerjee P, Reddy T, and Pittla N
- Subjects
- Adult, Ascorbic Acid, Humans, Infodemic, Internet, Pandemics, SARS-CoV-2, COVID-19 epidemiology, Social Media
- Abstract
The uncontrolled spread of (mis)information, news and propaganda related to COVID 19 created an 'infodemic' leading to panic and unscientific practices among the mass. With the largest number of internet users in the world, India has witnessed a steep rise in the number of people seeking information on social media related to COVID-19, which reached a staggering 22.3 million by March, 2020. This study aimed to evaluate the trend of COVID-19 associated food and nutrition news search by Indian internet users between 27th January 2020 to 30th June 2021 (time period between the first detected COVID-19 case and the end of the second wave in India) and its impact on their perceptions and practices. The association between the change in Relative Search Volume (RSV) on Google Trends (GT) of 34 popularly searched keywords classified by the researchers under 5 different categories-"Immunity", "Eating behavior", "Food safety", "Food scares and concerns" and "Covid scare" showed a steep rise in search for immunity boosters, vitamin supplement brands "ayush kadha (ayurvedic decoction) during the first wave (April- August 2020). With a brief period of decline in the search trend, it again hiked correspondingly with the growing number of positive cases during the second wave in India. An online survey conducted on adult Indian internet users (n = 572) reported high (71.9%) consumption of Vitamin C rich fruits as well as Vitamin C (68.2%) and Zinc (61.4%) supplements to boost immunity. Traditional Indian spices like ginger and garlic were used by 62.9% and 50.9% respondents respectively. Most respondents reported to rely on social media for gathering COVID-19 associated tips for boosting immunity, however those with history of COVID-19 infection reported to rely more on doctors and health professionals for information. This study highlights the need of media and health literacy to advocate for the use of health information cautiously., Competing Interests: No Authors have competing interests.
- Published
- 2022
- Full Text
- View/download PDF
21. Pilot study investigating diagnostic utility of serum MMP-1 and TGF-β1 in asthma in 'real world' clinical practice in India.
- Author
-
Prabha A, Lokesh KS, Chaya SK, Jayaraj BS, Malamardi S, Subbarao MVSST, Beck SC, Krishna MT, and Mahesh PA
- Subjects
- Adult, Humans, India, Pilot Projects, Transforming Growth Factor beta1 therapeutic use, Asthma diagnosis, Asthma drug therapy, Matrix Metalloproteinase 1 blood, Transforming Growth Factor beta1 blood
- Abstract
Aims: At a tissue level, matrix metalloproteinase-1 (MMP-1) and transforming growth factor-beta 1 (TGF-β1) contribute to allergic airway inflammation, tissue remodelling and disease severity in asthma via different pathways. Their peripheral blood levels and role in diagnosis and therapeutic monitoring has not been adequately explored. We investigated the association between MMP-1 and TGF-β in moderate and severe persistent asthma and evaluated their performance characteristics by constructing receiver operating characteristic curves., Methods: Serum MMP-1 and TGF-β1 were measured using ELISA in 75 adults; moderate persistent asthma (n=25), severe persistent asthma (n=25) and healthy community controls (n=25). Severity of asthma was determined as per Global Initiative for Asthma guidelines. Subjects were followed up for 3 months and treatment responsiveness was assessed by spirometry and symptom response., Results: Serum MMP-1 and TGF-β1 were significantly elevated in asthmatics compared with controls (p<0.0001 and p<0.01). While serum MMP-1 was elevated in severe asthma compared with moderate asthma (p<0.05), TGF-β1 was lower in severe asthma compared with moderate asthma (p<0.05). The performance characteristics of serum MMP-1 and TGF-β1 were promising in this cohort with sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of 82%, 100%, 100% and 99% and 62%, 100%, 100% and 97.8%, respectively; sensitivity of MMP-1 being superior., Conclusion: This pilot study showed that serum MMP-1 and TGF-β1 levels are elevated in chronic asthma and may serve as a useful adjunct in differentiating moderate from severe asthma. A large multicentre study in well characterised cohort of asthmatics is warranted to investigate their role in diagnosis and therapeutic monitoring., Competing Interests: Competing interests: MTK’s department received funding from Thermo Fisher, ALK Abello, MEDA and other pharmaceutical companies over the years for PracticAllergy course. MTK has received funds from ALK Abello to attend an international conference., (© Author(s) (or their employer(s)) 2022. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2022
- Full Text
- View/download PDF
22. Analytical similarity assessment of MYL-1402O to reference Bevacizumab.
- Author
-
Goyal P, Vats B, Subbarao M, Honnappa CG, Kabadi P, Rohil S, Bera A, Mehta GR, Pai H, Adhikari L, Tagore R, Sharma S, Venkatachala R, Nair P, Annegowda S, Sahu A, Trivedi S, Shastri N, Gokhale Y, Thomas R, Thakur A, Mohan D, Rao K U, Melarkode R, and Ullanat R
- Subjects
- Bevacizumab therapeutic use, Human Umbilical Vein Endothelial Cells, Humans, Vascular Endothelial Growth Factor A, Carcinoma, Non-Small-Cell Lung drug therapy, Lung Neoplasms drug therapy
- Abstract
Background: Bevacizumab (BEV) is a recombinant humanized monoclonal immunoglobulin G1 antibody that binds to vascular endothelial growth factor (VEGF)-A and acts as an antiangiogenic agent. It is approved for treatment of many cancer indications, including metastatic colorectal cancer and nonsquamous non-small cell lung cancer., Research Design and Methods: The analytical similarity of the BEV biosimilar MYL-1402O to reference BEV sourced from the European Union and United States was assessed using physicochemical and functional tests to support the clinical development of MYL-1402O. Assessment of physicochemical and analytical similarity showed that MYL-1402O has the same amino acid sequence and similar posttranslational modification profile as the reference BEV products., Results: The functional and biologic activity of MYL-1402O assessed using inhibition of VEGF-induced cell proliferation in human umbilical vein endothelial cells, inhibition of VEGF-induced VEGF receptor 2 phosphorylation, and fragment antigen and fragment crystallizable receptor binding, was comparable to reference BEV products., Conclusions: The totality of the data assessment confirms the high degree of similarity of MYL-1402O to reference BEV with respect to physicochemical and in vitro functional properties. The product quality data presented here, along with data from phase 1 clinical studies, demonstrate the similarity of MYL-1402O to reference BEV products, supporting further clinical development of this BEV biosimilar.
- Published
- 2022
- Full Text
- View/download PDF
23. Evaluation of physicochemical and biological properties of nonreconstituted MYL-1401O vials, reconstituted MYL-1401O suspension in vial, and diluted MYL-1401O suspension in infusion bags (0.9% saline) for extended duration.
- Author
-
Vats B, Goyal P, Mathew Z, Ghosh R, Babu MN, Jadav RS, Nair AM, Subbarao M, Bera A, Prakash Sadasivappa K, Kabadi P, Sarkar A, Honnappa CG, Patnaik US, Singh A, Parambath AV, and Ullanat R
- Subjects
- Drug Stability, Drug Storage, Humans, Trastuzumab chemistry, Biosimilar Pharmaceuticals chemistry, Saline Solution
- Abstract
Background: MYL-1401O; trastuzumab-dkst (Ogivri™; Mylan Inc.) is a biosimilar to the trastuzumab reference product (Herceptin®; Genentech, USA). Assessment of physicochemical stability and biological activity for the non-reconstituted, reconstituted, and infused solution over an extended, clinically relevant duration is critical for ensuring optimal patient outcomes and health resource utilization., Methods: The physicochemical and biological stability of MYL-1401O was assessed in non-reconstituted vials stored at 25 °C ± 2 °C/60% ± 5% relative humidity (RH) for 6 months, reconstituted 21 mg/mL solution in vials stored at 2 °C to 8 °C for 10 days, and diluted in 0.9% saline-containing infusion bags at 0.3 mg/mL and 4.0 mg/mL stored for 77 days at 2 °C to 8 °C, plus an additional 2 days at 25 °C ± 2 °C/60% ± 5% RH., Results: At all storage conditions tested, MYL-1401O was physicochemically and biologically stable for extended duration and under various temperature and humidity conditions., Conclusions: MYL-1401O retained its physicochemical and biological stability under different storage conditions, which supports advanced preparation of MYL-1401O, better efficiency, less wastage, and cost-savings for better patient management.
- Published
- 2022
- Full Text
- View/download PDF
24. Identifying opportunities and barriers for introducing a workplace nutrition and health program for employees: Findings from formative research.
- Author
-
Banerjee P, Reddy BG, and Gavaravarapu SM
- Subjects
- Humans, Workplace, Health Promotion methods, Exercise, Nutritional Status, Occupational Health
- Abstract
Background: The work style of employees engaged in the Information Technology (IT) and Business Process Outsourcing (BPO) sectors in India is dominantly sedentary exposing them to detrimental obesogenic environments with unhealthy diets, increasing the risk of non-communicable diseases (NCDs). Workplace health interventions have been reported to have the potential of reducing NCDs and related risk factors among the employees and thus reduce cost of absenteeism and improve productivity., Objective: This formative research study aims to explore the opportunities and barriers of the development and implementation of a Workplace Health Programme (WHP)., Methods: In this study, a mixed method including qualitative and quantitative approaches were used. Focus group discussions (FGDs) were conducted with employees and senior managers in employers of IT/BPO companies of different sizes in Hyderabad, India. The food and physical activity environment in the workplaces were explored using a checklist and ground truthing approach. A knowledge, attitudes and practices (KAP) questionnaire was developed to assess health, nutrition and physical activity of the employees., Results: Through this formative research, the required areas for nutrition, physical activity and health education were identified. The scope of utilising existing facilities for physical activity and modifying the food environment was explored. We noted optimistic bias among the junior employees who did not consider themselves at risk of developing NCDs., Conclusions: The identified opportunities and barriers will help in developing strategic WHPs suitable to individual workplaces. The qualitative methods, ground truthing approach, checklist and KAP tools used here can assess the company environment and employee health and nutrition status.
- Published
- 2022
- Full Text
- View/download PDF
25. Palladium-catalyzed ortho -vinylation of β-naphthols with α-trifluoromethyl allyl carbonates: one-pot access to naphtho[2,1- b ]furans.
- Author
-
Priyanka C, Subbarao M, and Punna N
- Abstract
Highly regio- and stereoselective palladium-catalyzed ortho -vinylation of β-naphthols (2) has been reported using easily accessible CF
3 -allyl carbonates (1). The regioselective nucleophilic γ-attack of the CF3 -π-allyl-Pd-intermediate is the key to furnish ( Z )-CF3 -vinylnaphthols (3) in good yields. Furthermore, we achieved a one-pot synthesis of CF3 -naphtho[2,1- b ]furans (4) through an uninterrupted ortho -vinylation/oxidative radical cyclization reaction sequence.- Published
- 2021
- Full Text
- View/download PDF
26. Physicochemical and functional characterization of trastuzumab-dkst, a trastuzumab biosimilar.
- Author
-
Goyal P, Iyer J, Adhikary L, Vats B, Kabadi P, Pai H, Ranayhossaini D, Gouda S, Subbarao M, Mehta G, Saha A, Bera A, Sahu A, Kaur M, Singh A, Marwah A, Reddy Moole PK, Smith J, Melarkode R, and Ullanat R
- Subjects
- Animals, Antineoplastic Agents, Immunological administration & dosage, Antineoplastic Agents, Immunological adverse effects, Apoptosis drug effects, Biosimilar Pharmaceuticals administration & dosage, Biosimilar Pharmaceuticals adverse effects, Cell Line, Tumor, Cell Proliferation drug effects, Disulfides chemistry, Dose-Response Relationship, Drug, Drug Discovery, Female, Haplorhini, Humans, Protein Binding, Protein Conformation, Receptor, ErbB-2 metabolism, Structure-Activity Relationship, Tandem Mass Spectrometry, Trastuzumab administration & dosage, Trastuzumab adverse effects, Antineoplastic Agents, Immunological pharmacokinetics, Biosimilar Pharmaceuticals pharmacokinetics, Breast Neoplasms drug therapy, Polysaccharides chemistry, Trastuzumab pharmacokinetics
- Abstract
Aims: Preclinical comparative similarity studies of trastuzumab-dkst, a Herceptin
® biosimilar, are reported. Materials & methods: Primary sequence and higher order structure and pharmacological mechanisms of action were compared using multiple techniques. Pharmacokinetics and repeat-dose toxicity were assessed in cynomolgus monkeys. Results: Primary structures were identical; secondary and tertiary structures were highly similar. Non-significant differences were observed for charge heterogeneity. Twelve of 13 glycan species were highly similar, with slightly higher total mannose levels in trastuzumab-dkst. FcγR and FcRn binding activity was highly similar. Each drug equally inhibited HER2+ cell proliferation, demonstrating equivalent relative potency in mediating HER2+ cell cytolysis by antibody-dependent cellular cytotoxicity. Pharmacokinetic and toxicological profiles in cynomolgus monkeys were similar. Conclusion: Trastuzumab-dkst, US-licensed trastuzumab and EU-approved trastuzumab demonstrate high structural and functional similarity.- Published
- 2021
- Full Text
- View/download PDF
27. Author Correction: Identification, characterization and control of a sequence variant in monoclonal antibody drug product: a case study.
- Author
-
Thakur A, Nagpal R, Ghosh AK, Gadamshetty D, Nagapattinam S, Subbarao M, Rakshit S, Padiyar S, Sreenivas S, Govindappa N, Pai HV, and Subbaraman RM
- Published
- 2021
- Full Text
- View/download PDF
28. Identification, characterization and control of a sequence variant in monoclonal antibody drug product: a case study.
- Author
-
Thakur A, Nagpal R, Ghosh AK, Gadamshetty D, Nagapattinam S, Subbarao M, Rakshit S, Padiyar S, Sreenivas S, Govindappa N, Pai HV, and Melarkode Subbaraman R
- Subjects
- Antibodies, Monoclonal isolation & purification, Drug Contamination, Gas Chromatography-Mass Spectrometry, Mass Spectrometry, Peptide Mapping, Peptides genetics, Antibodies, Monoclonal genetics, Genetic Variation genetics
- Abstract
Sequence variants (SV) in protein bio therapeutics can be categorized as unwanted impurities and may raise serious concerns in efficacy and safety of the product. Early detection of specific sequence modifications, that can result in altered physicochemical and or biological properties, is therefore desirable in product manufacturing. Because of their low abundance, and finite resolving power of conventional analytical techniques, they are often overlooked in early drug development. Here, we present a case study where trace amount of a sequence variant is identified in a monoclonal antibody (mAb) based therapeutic protein by LC-MS/MS and the structural and functional features of the SV containing mAb is assessed using appropriate analytical techniques. Further, a very sensitive selected reaction monitoring (SRM) technique is developed to quantify the SV which revealed both prominent and inconspicuous nature of the variant in process chromatography. We present the extensive characterization of a sequence variant in protein biopharmaceutical and first report on control of sequence variants to < 0.05% in final drug product by utilizing SRM based mass spectrometry method during the purification steps.
- Published
- 2021
- Full Text
- View/download PDF
29. Domino Reaction of 2,4-Diyn-1-ols with 1,3-Dicarbonyl Compounds: Direct Access to Aryl/Heteroaryl-Fused Benzofurans and Indoles.
- Author
-
Raji Reddy C, Aila M, Subbarao M, Warudikar K, and Grée R
- Abstract
A domino propargylation/furanylation (intramolecular exo - dig -cyclization)/benzannulation reaction of 2,4-diyn-1-ols with 1,3-dicarbonyl compounds has been developed for the first time. This provides a novel and effective method for the preparation of aryl/heteroaryl-fused benzofurans from easily accessible starting materials in a single step. The methodology was extended to pyrrolyl-benzannulation to obtain aryl/heteroaryl-fused indoles. Further, application of this approach in the synthesis of eustifoline D and dictyodendrin structural frameworks has been demonstrated.
- Published
- 2021
- Full Text
- View/download PDF
30. "Nutritainment" - A Nutrition Education Module for Indian Adolescents.
- Author
-
Hedaoo RP, Kabra P, and Gavaravarapu SM
- Subjects
- Adolescent, Humans, Health Education, Nutrition Therapy
- Published
- 2021
- Full Text
- View/download PDF
31. One-Pot Arylative Benzannulation of 2-Carbonyl-3-propargyl Indoles with Boronic Acids Leading to Arylated Carbazoles.
- Author
-
Reddy CR, Srinivasu E, Sathish P, Subbarao M, and Donthiri RR
- Abstract
Arylative annulation of 2-carbonyl-3-propargyl indoles with boronic acids under sequential palladium/triflic acid catalysis is described. The present strategy to provide di- and triaryl carbazoles in one pot involves benzannulation through difunctionalization of alkynes. The strategy showed a good substrate scope with respect to boronic acids as well as 2-carbonyl-3-propargyl indoles to afford the corresponding carbazoles in decent yields.
- Published
- 2021
- Full Text
- View/download PDF
32. Ag-Catalyzed Oxidative ipso -Cyclization via Decarboxylative Acylation/Alkylation: Access to 3-Acyl/Alkyl-spiro[4.5]trienones.
- Author
-
Reddy CR, Kolgave DH, Subbarao M, Aila M, and Prajapti SK
- Abstract
A strategy to functionalized spiro[4.5]trienones, by domino silver-catalyzed decarboxylative acylation or alkylation/ ipso -cyclization of N -arylpropiolamides with α-keto acids/alkyl carboxylic acids, is presented. This transformation offers a wide range of substituted 3-acyl/alkyl-spiro[4.5]trienones in high yields with a broad substrate scope. The approach was further extended to access fused tricyclic frameworks, 6,7-dihydro-3 H -pyrrolo[2,1- j ]quinoline-3,9(5 H )-diones.
- Published
- 2020
- Full Text
- View/download PDF
33. Calorie counting smart phone apps: Effectiveness in nutritional awareness, lifestyle modification and weight management among young Indian adults.
- Author
-
Banerjee P, Mendu VVR, Korrapati D, and Gavaravarapu SM
- Subjects
- Adult, Humans, India, Life Style, Behavior Therapy instrumentation, Behavior Therapy methods, Mobile Applications standards, Mobile Applications statistics & numerical data, Smartphone
- Abstract
Calorie counting mobile apps claim to assist in weight management by helping users monitor their diets and track activity. This study assessed quality and effectiveness of popular calorie counting apps in weight management and behaviour change. Top 20 apps were selected from Google Play store and their quality was assessed using a 55-point scoring scale on attributes like standards used, content accuracy, user interface and sources of database. The mean (±SD (standard deviation)) quality score was 36.95 (±5.65). The calorie and activity recommendations were compared with standards and over 65 per cent apps over/underestimated calorie intake. To assess effectiveness, 60 young volunteers were recruited and divided into two groups. The intervention group (n = 30) was asked to use one of the top 3 apps for 8 weeks. Pre- and post-comparisons were made with the control group (n = 28). No significant difference was noted in anthropometry or food consumption. There was increasing trend (13.33%) in physical activity in the intervention group.
- Published
- 2020
- Full Text
- View/download PDF
34. Front-of-pack nutrition labelling in India.
- Author
-
Pande R, Gavaravarapu SM, and Kulkarni B
- Subjects
- Choice Behavior, Consumer Behavior, Humans, India, Food Labeling methods, Nutrition Policy
- Published
- 2020
- Full Text
- View/download PDF
35. Coaches' perceptions about food, appetite, and nutrition of adolescent Indian athletes - A qualitative study.
- Author
-
Cherian KS, Gavaravarapu SM, Sainoji A, and Yagnambhatt VR
- Abstract
Adolescence is a transitional phase of development with the risk of adopting unhealthy behaviours, which is carried on to adulthood. Adolescent athletes tend to resort to unhealthy eating habits resulting in eating disorders and other clinical outcomes. Hence, it forms a crucial age to understand modifiable food habits and provide appropriate counselling. In India, coaches closely monitor the adolescent athletes, even concerning their eating habits due to the lack of multi-disciplinary support staff. Thus, our study aimed to understand the perceptions of coaches towards food, appetite and nutrition of adolescent athletes using In-depth interviews (IDI). Of all 14 coaches at the state-sponsored residential sports centre, 10 consented. The IDI were conducted in a standardized manner and were recorded and transcribed. They were coded manually, using the open and axial coding in the grounded theory approach to determine themes. They considered nutrition as key to performance and consumption of higher animal protein as important. Majority of them considered sprouts, dry fruits, fruits and vegetables as healthy foods, though were unable to define the quantities nor nutrients therein. Coaches considered protein as "important", while fat as "unhealthy". They also observed that athletes were avoiding fruits and vegetables, while consuming more rice. Meal timing, fluid and supplement intake were considered essential for international performance, albeit unaware of the specific requirements. Hygiene practices and peer isolation were considered to affect food intake. This lacunae in the nutrition knowledge and the modifiable nutrition practices explored can be targeted by developing a nutrition education and assessment tool for coaches and junior athletes. Further, a long-term engagement of a nutritionist with every sports academy in India is recommended., (© 2020 Published by Elsevier Ltd.)
- Published
- 2020
- Full Text
- View/download PDF
36. One-Pot Assembly of 3-Hydroxycarbazoles via Uninterrupted Propargylation/Hydroxylative Benzannulation Reactions.
- Author
-
Raji Reddy C, Subbarao M, Sathish P, Kolgave DH, and Donthiri RR
- Abstract
A novel strategy for the synthesis of 3-hydroxycarbazoles involving the consecutive propargylation/palladium-catalyzed hydroxylative benzannulation of indole-2-carbonyls with propargylic alcohols has been exploited. This one-pot procedure leads to a wide range of substituted 3-hydroxycarbazoles in high yield with a broad substrate scope. The method was further extended to access furano-carbazole derivatives from dialkynols via tandem annulations.
- Published
- 2020
- Full Text
- View/download PDF
37. A sequential, exploratory, mixed-methods approach for development and validation of a context-specific knowledge, attitude and practice questionnaire on micronutrients for literate mothers of school-age children.
- Author
-
Konapur A, Krishnapillai MN, Nagalla B, and Gavaravarapu SM
- Subjects
- Child, Female, Focus Groups, Humans, Psychometrics methods, Reproducibility of Results, Diet statistics & numerical data, Health Knowledge, Attitudes, Practice, Micronutrients, Mothers statistics & numerical data, Surveys and Questionnaires standards
- Abstract
Objective: To develop and validate a context-specific comprehensive knowledge, attitude and practice (KAP) questionnaire for literate mothers on factors affecting micronutrient status of 6-10-year-old children., Design: Sequential exploratory mixed-methods study using focus group discussions (FGD) and psychometric validation., Setting: Seven randomly selected villages with >500 households with three to five family members each, in Ghatkesar sub-district, Medchal district, Telangana state, India.ParticipantsLiterate mothers from middle-income households with at least one child (6-10 years) for FGD (n 44), for testing the internal consistency (n 80) and for test-retest reliability (n 30)., Results: The themes for FGD were diet diversity, micronutrients, cooking and eating practices, national programmes and sunlight exposure. Knowledge among caregivers about sources of micronutrients, deficiency symptoms, cooking/eating practices was low, while attitude towards diet diversity and sunlight was good. Non-availability of fruits and vegetables was a barrier to diet diversity. About 72 % of the questions from the item pool were based on FGD. After content validity, 125 items were selected for the questionnaire which, upon psychometric validation, was reduced to an eighty-eight-item questionnaire with difficulty index of 0·10-0·91, discrimination index of 0·09-0·68, Cronbach's α of 0·78 (reliability of knowledge and attitude) and 0·50 (practice). A Bland-Altman plot showed good agreement between test and retest scores., Conclusions: The questionnaire developed and validated using a sequential exploratory mixed-methods approach can be used for assessing KAP on micronutrients and factors affecting consumption of diverse diets in rural Indian households.
- Published
- 2019
- Full Text
- View/download PDF
38. Nutrition communication - Rhetoric & reality.
- Author
-
Gavaravarapu SM
- Subjects
- Humans, India epidemiology, Malnutrition metabolism, Malnutrition pathology, Nutrition Disorders metabolism, Nutrition Disorders pathology, Obesity epidemiology, Overweight epidemiology, Malnutrition epidemiology, Micronutrients metabolism, Noncommunicable Diseases epidemiology, Nutrition Disorders epidemiology
- Abstract
Given the context that undernutrition in India co-exists with the problems of overweight/obesity and associated non-communicable diseases as well as micronutrient deficiencies, integrating nutritional concerns in developmental policies and governance is gaining significance. There are many schemes implemented to tackle malnutrition in India, but creating synergy and linking these schemes with each other to achieve a common goal are lacking. Nutrition communication can be an important component to create the synergy required to change malnourished India to malnutrition-free India. Although nutrition education/communication is recognized as a necessary component in various national nutrition programmes, there is not much evidence of distinct evaluation of these components. Only a minor proportion of community nutrition research has been devoted to nutrition education and communication. Although there are scattered efforts in experimenting with newer communication approaches and media for promoting nutrition, there is a dearth of published literature. In this review an attempt was made to critically examine the nutrition education and communication research and practice with special focus on India. This review provides a historical perspective of evolution of nutrition education and communication with an overview of communication approaches, media, methods and technologies used in various research studies and programmes as well as the lessons learnt., Competing Interests: None
- Published
- 2019
- Full Text
- View/download PDF
39. Thought for Food: Mahatma's Views on Nutrition, Controlled and Balanced Diets .
- Author
-
Gavaravarapu SM and Hemalatha R
- Subjects
- Food Supply, History, 19th Century, History, 20th Century, Humans, India epidemiology, Mothers, Diet history, Mother-Child Relations, Nutritional Status, Women's Health history
- Abstract
Competing Interests: None
- Published
- 2019
- Full Text
- View/download PDF
40. Identification and quantification of product-related quality attributes in bio-therapeutic monoclonal antibody via a simple, and robust cation-exchange HPLC method compatible with direct online detection of UV and native ESI-QTOF-MS analysis.
- Author
-
Sankaran PK, Kabadi PG, Honnappa CG, Subbarao M, Pai HV, Adhikary L, and Palanivelu DV
- Subjects
- Animals, Antibodies, Monoclonal isolation & purification, CHO Cells, Cricetinae, Cricetulus, Humans, Spectrophotometry, Ultraviolet, Antibodies, Monoclonal analysis, Antibodies, Monoclonal chemistry, Chromatography, High Pressure Liquid methods, Chromatography, Ion Exchange methods, Spectrometry, Mass, Electrospray Ionization methods
- Abstract
Modern analytical ion-exchange chromatography is one of the conventional tools used for assessment of product-related quality attributes in bio-therapeutic monoclonal antibodies (mAbs). Here, we present an approach to resolve, identify, and quantify product-related substances of therapeutic mAb at its intact molecular level by cation exchange (CIEX) HPLC coupled directly to electrospray ionization - quadrupole time of flight mass spectrometry (ESI-QTOF-MS). This method utilizes pH gradient elution mode comprised of ammonium formate buffer components, and a weak cation exchange column as stationary phase. Furthermore, ion-mobility mass spectrometry (IM-MS) provided additional insights on its higher order structure. Also, orthogonal assays such as conventional CIEX-HPLC, high resolution capillary isoelectric focusing, peptide mapping, spectroscopic, and fluorescence methods were used considerably to support the findings. Additionally, an in vitro assay was included to assess the associated impact on Fc mediated function. Overall, the developed method with simultaneous detection of UV peak area percentage at 280 nm and native ESI-MS is found to be a rapid and robust analytical tool for direct assessment of structural and purity attributes, process optimization, product development, and to decipher the relevant role of micro-variants on quality, stability, and clinical outcomes., (Copyright © 2018. Published by Elsevier B.V.)
- Published
- 2018
- Full Text
- View/download PDF
41. National Institute of Nutrition: 100 years of empowering the nation through nutrition.
- Author
-
Gavaravarapu SM and Hemalatha R
- Subjects
- Academies and Institutes organization & administration, Academies and Institutes trends, Dietary Exposure prevention & control, Food Safety, Humans, India, Research trends, Foodborne Diseases epidemiology, Foodborne Diseases prevention & control, Nutritional Sciences organization & administration, Nutritional Sciences standards, Nutritional Sciences trends, Public Health methods, Public Health standards
- Abstract
The National Institute of Nutrition (NIN) has reached a remarkable milestone of completing 100 years of exemplary service to the nation. The long journey that started in a humble one-room laboratory at Coonoor (now in Tamil Nadu) in 1918 to a colossus of the nutrition research in the country today is dotted with several interesting vignettes. The NIN has always been at the forefront of need-based, pragmatic research. Its large-scale community-based interventions have been of great practical value in the nation's fight against malnutrition. The evolution of nutrition as a modern science almost coincides with the growth of the Institute. Being the oldest in the fraternity of institutes under the Indian Council of Medical Research (ICMR), the NIN has grown from strength to strength due to the sheer relevance of its contributions in furthering nutrition science and promoting public health in the country. This article provides a historical overview of the evolution and contributions of ICMR-NIN in the areas of nutrition, food safety, public health and policy., Competing Interests: None
- Published
- 2018
- Full Text
- View/download PDF
42. Wellness programmes in the workplace in India.
- Author
-
Banerjee P and Gavaravarapu SM
- Subjects
- Humans, India, Public Health, Health Promotion, Occupational Health
- Published
- 2018
- Full Text
- View/download PDF
43. Antioxidant Potential of Naringenin Helps to Protect Liver Tissue from Streptozotocin-Induced Damage.
- Author
-
Rashmi R, Bojan Magesh S, Mohanram Ramkumar K, Suryanarayanan S, and Venkata SubbaRao M
- Abstract
Background: Naringenin is a bioactive flavonoid found in grapes and citrus fruits including tangelo, blood orange, lemons, and tangerines. The aims of this study were to investigate the ability of naringenin to scavenge free radicals and determine its ability to protect animals from streptozotocin (STZ) -induced liver damage., Methods: The free radical-scavenging activity of naringenin was evaluated by in vitro cell-free assay systems. In animals, the antioxidant potential of orally administered 50 and 100 mg/kg body weight naringenin for 45 days was assessed by measuring TBARS, lipid hydroperoxides, SOD, catalase, GST, GPx, and glutathione levels in liver homogenates prepared from animals injected intraperitoneally with multiple low dose streptozotocin at 50 mg/kg for five consecutive days. The extent of cellular damage caused by STZ administration was analyzed using H & E staining., Results: Naringenin showed potent free radical scavenging activity in vitro. Naringenin effectively neutralized (a) hydroxyl radicals, (b) superoxide, (c) hydrogen peroxide, (d) nitric oxide radical, (e) DPPH, and (f) lipid peroxidation. In animals, administration of naringenin reduced lipid peroxidation and increased antioxidant levels. Analysis of liver sections showed the restoration of normal morphology upon treatment with naringenin., Conclusion: Naringenin helps to mitigate STZ-induced liver complications by promoting antioxidant defence enzyme activities and increasing glutathione levels.
- Published
- 2018
44. Data sets on delineation of groundwater potential zones identified by geospatial tool in Gudur area, Nellore district, Andhra Pradesh, India.
- Author
-
Golla V, Etikala B, Veeranjaneyulu A, Subbarao M, Surekha A, and Narasimhlu K
- Abstract
The data deals with the preparation of the groundwater potential zone map of gudur area, with the help of data like geology and geomorphology, structure/lineament, slope and drainage and the thematic layer were prepared through the Survey of India toposheet Nos. N/12,N/15,N/16 and IRS-P6 LISS-III(RESOURCESAT-2) satellite data. The groundwater potential zones were obtained and classified into four categories, viz., very poor, poor, good, and very good zones. The data explains lateritic plain moderate basement with poor potential zones whereas secondarily occupies alluvial plain contains the good prospecting zone.
- Published
- 2018
- Full Text
- View/download PDF
45. One-Pot Synthesis of Triazolo-Heterolignans: Biological Evaluation and Molecular Docking Studies as Tubulin Inhibitors.
- Author
-
Reddy CR, Subbarao M, Vijaykumar J, Jadav SS, Sasane N, Valleti RR, Supriya B, and Ummanni R
- Subjects
- Antineoplastic Agents chemical synthesis, Antineoplastic Agents chemistry, Cell Proliferation drug effects, Dose-Response Relationship, Drug, Drug Screening Assays, Antitumor, Humans, Lignans chemistry, Molecular Structure, Structure-Activity Relationship, Triazoles chemistry, Tumor Cells, Cultured, Antineoplastic Agents pharmacology, Lignans pharmacology, Molecular Docking Simulation, Triazoles pharmacology, Tubulin metabolism
- Abstract
Background: The anti-mitotic activity of podophyllotoxin derivative targeting tubulin enzyme proved them as strong polymerization inhibitors. The introduction of heteroatom along with different heteroaryl systems in naturally obtained lignans created a latitude for design of bioactive components. A novel one-pot sequential propargylation/cycloaddition reaction strategy has been followed to synthesize triazolo-heterolignans., Objective: To screen anti-proliferative activity of novel heterolignans and to determine their mode of action., Method: SRB assay, Cytotoxicity evaluation, PI uptake for analysis of cell cycle, caspase-3 activity, Western blot analysis and Immunofluorescence and molecular docking studies., Results: SRB assay of synthesised compounds were provided compound 3a and 5f to be highly active among the synthesized compounds. The Compound 3a showed cell cycle arrest at G2/M phase and 5f arrest the cells at G1 phase. Compound 5f displayed caspase 3 mediated apoptotic effect at lower levels. Compound 3a and 5f displayed microtubule disassembly inhibition same as paclitaxel and found to be occupying colchicine binding site of tubulin, both ligands were depicted π-cation interaction with Lys352 residue and triazole ring accommodated at the lactone binding site., Conclusion: A novel one-pot sequential propargylation/cycloaddition reaction has been developed for the synthesis of triazolo-heterolignans. Compound 3a and 5f were displayed good cytotoxic activities and found to inhibit microtubule disassembly. The importance of triazole ring of heterolignans has been studied by molecular docking experiments and results were compared., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
- Published
- 2018
- Full Text
- View/download PDF
46. Pictorial Learning and Visual Imagery-Based Activity Methods in Nutrition Education for Primary Schoolchildren in India.
- Author
-
Nalam A, Gavaravarapu SM, Kodali V, and Dharmapuri RR
- Subjects
- Audiovisual Aids, Child, Female, Humans, India, Male, Health Education methods, Health Promotion methods, Learning, Nutritional Sciences education, Students statistics & numerical data
- Published
- 2017
- Full Text
- View/download PDF
47. Imaging Acetaldehyde Formation During Ethanol Metabolism in Living Cells using a Hydrazinyl Naphthalimide Fluorescent Probe.
- Author
-
Reeves AG, Subbarao M, and Lippert AR
- Abstract
The metabolism of ethanol to acetaldehyde has been visualized in living lung epithelial cells using a hydrazinyl naphthalimide fluorescent probe. Utilizing a condensation reaction between carbonyls and a hydrazine moeity, we demonstrate that the fluorescent probe (Aldehydefluor-1) AF1 reacts with a range of reactive carbonyl species including formaldehyde, acetaldehyde, glyoxylic acid, and methyl glyoxal. With AF1, it is possible to directly visualize endogenous carbonyl metabolites. Here, we have applied it towards the visualization of acetaldehyde generated from alcohol dehydrogenase mediated ethanol metabolism, validating it as a useful tool to study the roles of alcohol in respiratory disease and other pathological mechanisms.
- Published
- 2017
- Full Text
- View/download PDF
48. Read-B4-U-Eat: A Multicomponent Communication Module to Promote Food Label Reading Skills Among Adolescents in India.
- Author
-
Gavaravarapu SM, Saha S, Vemula SR, and Mendu VV
- Subjects
- Adolescent, Humans, India, Surveys and Questionnaires, Food Labeling, Health Communication methods, Health Promotion methods
- Published
- 2016
- Full Text
- View/download PDF
49. Assessing Differences in Risk Perceptions About Obesity Among "Normal-Weight" and "Overweight" Adolescents--A Qualitative Study.
- Author
-
Gavaravarapu SM, Rao KM, Nagalla B, and Avula L
- Subjects
- Adolescent, Child, Female, Focus Groups, Humans, India epidemiology, Male, Motor Activity, Qualitative Research, Risk, Students statistics & numerical data, Health Knowledge, Attitudes, Practice, Obesity epidemiology, Obesity psychology
- Abstract
Objectives: To assess the differences in risk perceptions of overweight/obese and normal-weight adolescents about obesity and associated risk factors., Design: Qualitative study using focus group discussions (FGDs)., Settings: Five randomly selected schools from the South Indian city of Hyderabad., Participants: Seventy-nine adolescents (ages 11-14 years) participated in 10 FGDs (5 each with overweight/obese and normal-weight groups)., Phenomenon of Interest: Whether obesity-related risk perceptions differ with actual weight status or not., Analysis: FGDs were recorded, transcribed, and manually coded for thematic analysis. Results were presented according to 6 themes. At each stage of coding and analysis, reports were read independently by 2-3 researchers and the inter-coder reliability was high (ratio of number of agreements against the sum of agreements plus disagreements was over 90%)., Results: Adolescents across the groups had limited understanding of nutrition during adolescence as well as causes and consequences of obesity. The optimistic bias that they were less vulnerable compared to others to the risks of obesity was evident from perceptions of overweight groups. While overweight adolescents argued that obesity was hereditary, the normal-weight participants perceived "faulty food habits" and laziness as the reasons. Adolescents across the groups considered fruits and vegetables as healthy foods., Conclusions and Implications: There were clear differences in perceptions of adolescents of different weight status. Employing the risk perception analysis framework, this study identified the following adolescent traits: responsive, avoidance, and indifference, which may be useful for developing nutrition communication programs., (Copyright © 2015 Society for Nutrition Education and Behavior. Published by Elsevier Inc. All rights reserved.)
- Published
- 2015
- Full Text
- View/download PDF
50. From farm to plate & beyond--A culture & context sensitive perspective for food safety.
- Author
-
Gavaravarapu SM and Nair KM
- Subjects
- Food Microbiology, Humans, World Health Organization, Food Safety, Public Health
- Published
- 2015
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.