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Moss H, Kolli S, Singh M, Yoon A, Schramm C, Restivo A. 113 Not Another Mass Casualty: Using Simulation to Increase Physician Comfort With the Unique Challenges of Protest Medicine. Ann Emerg Med 2021. [DOI: 10.1016/j.annemergmed.2021.09.123] [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: 11/28/2022]
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Kolli S, Wang A, Mahal J, Sanapala S, Corcoran A. 105 Sexually Transmitted Infection Testing at an Urban Hospital Pre- and Post-SARS-CoV-19 Pandemic. Ann Emerg Med 2021. [PMCID: PMC8335441 DOI: 10.1016/j.annemergmed.2021.07.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Kolli S, Wang A, Sanapala S, Mahal J, Corcoran A. 86 Sexually Transmitted Infection Testing and Prevalence at a Large, Urban Hospital Before and After the SARS-CoV-19 Pandemic. Ann Emerg Med 2021. [PMCID: PMC8335493 DOI: 10.1016/j.annemergmed.2021.07.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Gadelkarim W, Shahper S, Reid J, Wikramanayake M, Kaur S, Kolli S, Fineberg N, Osman S. Obsessive compulsive Personality Disorder and Autism Spectrum Disorder Traits in the Obsessive-compulsive Disorder Clinic. Eur Psychiatry 2020. [DOI: 10.1016/j.eurpsy.2017.01.1959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
IntroductionObsessive Compulsive Personality Disorder (OCPD) is a common, highly co-morbid disorder. Subjected to comparatively little research, OCPD shares aspects of phenomenology and neuropsychology with obsessive-compulsive spectrum disorders and neurodevelopmental disorders such as autism spectrum disorder (ASD). A greater understanding of this interrelationship would provide new insights into its diagnostic classification and generate new research and treatment heuristics.AimsTo investigate the distribution of OCPD traits within a cohort of OCD patients. To evaluate the clinical overlap between traits of OCPD, OCD and ASD, as well as level of insight and treatment resistance.MethodWe interviewed 73 consenting patients from a treatment seeking OCD Specialist Service. We evaluated the severity of OCPD traits (Compulsive Personality Assessment Scale; CPAS), OCD symptoms (Yale–Brown Obsessive Compulsive Scale; Y-BOCS), ASD traits (Adult Autism Spectrum Quotient; AQ) and insight (Brown Assessment of Beliefs Scale; BABS).ResultsOut of 67 patients, 24 (36%) met DSM-IV criteria for OCPD, defined using the CPAS. Using Pearson's test, CPAS scores significantly (P < 0.01) correlated with total AQ and selected AQ domains but not with BABS. Borderline significant correlation was observed with Y-BOCS (P = 0.07). OCPD was not over-represented in a highly resistant OCD subgroup.ConclusionDisabling OCPD traits are common in the OCD clinic. They strongly associate with ASD traits, less strongly with OCD severity and do not appear related to poor insight or highly treatment-resistant OCD. The impact of OCPD on OCD treatment outcomes requires further research.Disclosure of interestThis work did not receive funding from external sources. Over the past few years, Dr. Fineberg has received financial support in various forms from the following: Shire, Otsuka, Lundbeck, Glaxo-SmithKline, Servier, Cephalon, Astra Zeneca, Jazz pharmaceuticals, Bristol Myers Squibb, Novartis, Medical Research Council (UK), National Institute for Health Research (UK), Wellcome Foundation, European College of Neuropsychopharmacology, UK College of Mental Health Pharmacists, British Association for Psychopharmacology, International College of Obsessive-Compulsive Spectrum Disorders, International Society for Behavioural Addiction, World Health Organization, Royal College of Psychiatrists.
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Gadelkarim W, Shahper S, Reid J, Wikramanayake M, Kaur S, Kolli S, Osman S, Fineberg NA. Overlap of obsessive-compulsive personality disorder and autism spectrum disorder traits among OCD outpatients: an exploratory study. Int J Psychiatry Clin Pract 2019; 23:297-306. [PMID: 31375037 DOI: 10.1080/13651501.2019.1638939] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background: Whereas the phenomenology of obsessive-compulsive personality disorder (OCPD) shows similarities to that of obsessive compulsive and related disorders (OCRDs) as well as with autism spectrum disorder (ASD), the relationship between these disorders is poorly understood.Aims: Within a clinical sample, we aimed to investigate the distribution of OCD, OCPD and ASD symptoms and traits and their interrelationship, as well as to evaluate insight and treatment refractoriness.Methods: Consecutive adult OCD outpatients were assessed for OCPD traits (Compulsive Personality Assessment Scale (CPAS)), OCD symptoms (Yale-Brown Obsessive Compulsive Scale (Y-BOCS)), ASD traits (Autism Spectrum Quotient (AQ)), insight (Brown Assessment of Beliefs Scale (BABS)) and treatment resistance (clinical records). Those scoring highly on the AQ underwent a diagnostic interview for ASD.Results: Sixty-seven consenting individuals completed the CPAS, BABS and AQ, and 65 completed the Y-BOCS. Twenty-four patients (35.8%) were diagnosed with OCPD. Patients with OCPD were less likely to be employed (p=.04). They demonstrated elevated AQ scores (p=.004) and rates of ASD diagnosis (54.2%) (p <.001). OCPD traits (CPAS) showed a highly significant correlation with ASD traits (AQ) (p<.001), and no association with Y-BOCS, BABS or treatment resistance.Conclusions: In an OCD cohort limited by small size, OCPD associated strongly with unemployment and ASD, with implications for diagnosis, treatment and outcome.KEY POINTSClinicians should exercise a high level of vigilance for OCPD and ASD in patients presenting with obsessive compulsive symptoms.The presence of OCPD may indicate a likelihood of disabling ASD traits, including cognitive inflexibility, poor central coherence and poor social communication.These neuropsychological factors may require separate clinical intervention strategies.
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Affiliation(s)
- W Gadelkarim
- Rosanne House, Hertfordshire Partnership University NHS Foundation Trust, Welwyn Garden City, UK.,Derwent Centre, Essex Partnership University NHS Foundation Trust, Harlow, UK
| | - S Shahper
- Department of Life and Medical Science, University of Hertfordshire, Hatfield, UK
| | - J Reid
- Highly Specialised OCD/BDD Services, Hertfordshire Partnership University NHS Foundation Trust, Welwyn Garden City, UK
| | - M Wikramanayake
- Cavell Centre, Cambridgeshire and Peterborough NHS Foundation Trust, Peterborough, UK
| | - S Kaur
- Highly Specialised OCD/BDD Services, Hertfordshire Partnership University NHS Foundation Trust, Welwyn Garden City, UK
| | - S Kolli
- East London NHS Foundation Trust, Bedford, UK
| | - S Osman
- Northumberland, Tyne and Wear NHS Foundation Trust, Newcastle, UK
| | - N A Fineberg
- Highly Specialised OCD/BDD Services, Hertfordshire Partnership University NHS Foundation Trust, Welwyn Garden City, UK.,Postgraduate Medical School, University of Hertfordshire, Hatfield, UK.,University of Cambridge, School of Clinical Medicine, Cambridge, UK
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Wong S, Santullo P, Hirani SP, Kumar N, Chowdhury JR, García-Forcada A, Recio M, Paz F, Zobina I, Kolli S, Kiekens C, Draulans N, Roels E, Martens-Bijlsma J, O'Driscoll J, Jamous A, Saif M. Use of antibiotics and the prevalence of antibiotic-associated diarrhoea in patients with spinal cord injuries: an international, multi-centre study. J Hosp Infect 2017. [PMID: 28647425 DOI: 10.1016/j.jhin.2017.06.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND Little is known about the use of antibiotics and the extent of antibiotic-associated diarrhoea (AAD) in patients with spinal cord injuries (SCIs). AIMS To record the use of antibiotics, establish the prevalence of AAD and Clostridium difficile infection (CDI), and assess if there was any seasonal variation in antibiotic use and incidence of AAD in patients with SCIs. METHODS A retrospective study was conducted in six European SCI centres between October 2014 and June 2015. AAD was defined as two or more watery stools (Bristol Stool Scale type 5, 6 or 7) over 24 h. FINDINGS In total, 1267 adults (median age 54 years, 30.7% female) with SCIs (52.7% tetraplegia, 59% complete SCI) were included in this study. Among the 215 (17%) patients on antibiotics, the top three indications for antibiotics were urinary tract infections (UTIs), infected pressure ulcers and other skin infections. Thirty-two of these 215 (14.9%) patients developed AAD and two patients out of the total study population (2/1267; 0.16%) developed CDI. AAD was more common in summer than in spring, autumn or winter (30.3% vs 3.8%, 7.4% and 16.9%, respectively; P<0.01). AAD was associated with age ≥65 years, tetraplegia, higher body mass index, hypoalbuminaemia, polypharmacy, multiple antibiotic use and high-risk antibiotic use. Summer and winter seasons and male sex were identified as independent predictors for the development of AAD. CONCLUSION This survey found that AAD is common in patients with SCIs, and UTI is the most common cause of infection. Summer and winter seasons and male sex are unique predictors for AAD. Both AAD and UTIs are potentially preventable; therefore, further work should focus on preventing the over-use of antibiotics, and developing strategies to improve hospital infection control measures.
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Affiliation(s)
- S Wong
- National Spinal Injuries Centre, Stoke Mandeville Hospital, Aylesbury, UK; School of Health Science, City, University of London, London, UK.
| | - P Santullo
- National Spinal Injuries Centre, Stoke Mandeville Hospital, Aylesbury, UK
| | - S P Hirani
- School of Health Science, City, University of London, London, UK
| | - N Kumar
- Midland Centre for Spinal Injuries, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, UK; School of Medicine, Keele University, Keele, UK
| | - J R Chowdhury
- Midland Centre for Spinal Injuries, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, UK; School of Medicine, Keele University, Keele, UK
| | - A García-Forcada
- Internal Medicine Department, Hospital Nacional de Parapléjicos, Toledo, Spain
| | - M Recio
- Internal Medicine Department, Hospital Nacional de Parapléjicos, Toledo, Spain
| | - F Paz
- Internal Medicine Department, Hospital Nacional de Parapléjicos, Toledo, Spain
| | - I Zobina
- Welsh Spinal Injuries Rehabilitation Centre, Rookwood Hospital, Cardiff, UK
| | - S Kolli
- Welsh Spinal Injuries Rehabilitation Centre, Rookwood Hospital, Cardiff, UK
| | - C Kiekens
- Physical and Rehabilitation Medicine, University Hospitals Leuven, Leuven, Belgium
| | - N Draulans
- Physical and Rehabilitation Medicine, University Hospitals Leuven, Leuven, Belgium
| | - E Roels
- Department of Rehabilitation Medicine, Centre for Rehabilitation, University Medical Centre Groningen, Groningen, The Netherlands
| | - J Martens-Bijlsma
- Department of Rehabilitation Medicine, Centre for Rehabilitation, University Medical Centre Groningen, Groningen, The Netherlands
| | - J O'Driscoll
- Department of Microbiology, Stoke Mandeville Hospital, Aylesbury, UK
| | - A Jamous
- Royal Buckinghamshire Hospital, Aylesbury, UK
| | - M Saif
- National Spinal Injuries Centre, Stoke Mandeville Hospital, Aylesbury, UK
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Clenaghan C, Cousins R, Hrastelj J, Kolli S, Haider J, Kazmi S, McLauchlan D, Rosser AE. I47 Recognising serious comorbidities in huntington’s disease. J Neurol Psychiatry 2016. [DOI: 10.1136/jnnp-2016-314597.212] [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]
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Affiliation(s)
| | | | - S. Kolli
- Cleveland Clinic; Cleveland OH USA
| | - R. Drake
- Cleveland Clinic; Cleveland OH USA
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Vignarooban K, Lin J, Arvay A, Kolli S, Kruusenberg I, Tammeveski K, Munukutla L, Kannan A. Nano-electrocatalyst materials for low temperature fuel cells: A review. Chinese Journal of Catalysis 2015. [DOI: 10.1016/s1872-2067(14)60175-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Dale MD, Mortimer EM, Kolli S, Achramowicz E, Borchert G, Juliano SA, Halkyard S, Seitz N, Gatto C, Hester PY, Rubin DA. Bone-remodeling transcript levels are independent of perching in end-of-lay white leghorn chickens. Int J Mol Sci 2015; 16:2663-77. [PMID: 25625518 PMCID: PMC4346857 DOI: 10.3390/ijms16022663] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 01/12/2015] [Accepted: 01/16/2015] [Indexed: 01/07/2023] Open
Abstract
Osteoporosis is a bone disease that commonly results in a 30% incidence of fracture in hens used to produce eggs for human consumption. One of the causes of osteoporosis is the lack of mechanical strain placed on weight-bearing bones. In conventionally-caged hens, there is inadequate space for chickens to exercise and induce mechanical strain on their bones. One approach is to encourage mechanical stress on bones by the addition of perches to conventional cages. Our study focuses on the molecular mechanism of bone remodeling in end-of-lay hens (71 weeks) with access to perches. We examined bone-specific transcripts that are actively involved during development and remodeling. Using real-time quantitative PCR, we examined seven transcripts (COL2A1 (collagen, type II, alpha 1), RANKL (receptor activator of nuclear factor kappa-B ligand), OPG (osteoprotegerin), PTHLH (PTH-like hormone), PTH1R (PTH/PTHLH type-1 receptor), PTH3R (PTH/PTHLH type-3 receptor), and SOX9 (Sry-related high mobility group box)) in phalange, tibia and femur. Our results indicate that the only significant effect was a difference among bones for COL2A1 (femur > phalange). Therefore, we conclude that access to a perch did not alter transcript expression. Furthermore, because hens have been used as a model for human bone metabolism and osteoporosis, the results indicate that bone remodeling due to mechanical loading in chickens may be a product of different pathways than those involved in the mammalian model.
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Affiliation(s)
- Maurice D Dale
- School of Biological Sciences, Illinois State University, Normal, IL 61701, USA.
| | - Erin M Mortimer
- School of Biological Sciences, Illinois State University, Normal, IL 61701, USA.
| | - Santharam Kolli
- School of Biological Sciences, Illinois State University, Normal, IL 61701, USA.
| | - Erik Achramowicz
- School of Biological Sciences, Illinois State University, Normal, IL 61701, USA.
| | - Glenn Borchert
- School of Biological Sciences, Illinois State University, Normal, IL 61701, USA.
| | - Steven A Juliano
- School of Biological Sciences, Illinois State University, Normal, IL 61701, USA.
| | - Scott Halkyard
- School of Biological Sciences, Illinois State University, Normal, IL 61701, USA.
| | - Nick Seitz
- School of Biological Sciences, Illinois State University, Normal, IL 61701, USA.
| | - Craig Gatto
- School of Biological Sciences, Illinois State University, Normal, IL 61701, USA.
| | - Patricia Y Hester
- Department of Animal Sciences, Purdue University, 125 South Russell St, West Lafayette, IN 47907, USA.
| | - David A Rubin
- School of Biological Sciences, Illinois State University, Normal, IL 61701, USA.
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Lako M, Kolli S, Ahmad S, Mudhar H, Meeny A, Figueiredo F. Successful culture and characterisation of ex vivo expanded human autologous oral mucosa epithelium using a feeder- and animal product- free method for the treatment of total bilateral limbal stem cell deficiency. Cytotherapy 2014. [DOI: 10.1016/j.jcyt.2014.01.347] [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: 11/29/2022]
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Abstract
The "organic food" market is the fastest growing food sector, yet it is unclear whether organically raised food is nutritionally superior to conventionally grown food and whether consuming organic food bestows health benefits. In order to evaluate potential health benefits of organic foods, we used the well-characterized fruit fly Drosophila melanogaster as a model system. Fruit flies were raised on a diets consisting of extracts of either conventionally or organically raised produce (bananas, potatoes, raisins, soy beans). Flies were then subjected to a variety of tests designed to assess overall fly health. Flies raised on diets made from organically grown produce had greater fertility and longevity. On certain food sources, greater activity and greater stress resistance was additionally observed, suggesting that organic food bestows positive effects on fly health. Our data show that Drosophila can be used as a convenient model system to experimentally test potential health effects of dietary components. Using this system, we provide evidence that organically raised food may provide animals with tangible benefits to overall health.
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Affiliation(s)
- Ria Chhabra
- Clark High School, Plano, Texas, United States of America
| | - Santharam Kolli
- Department of Biological Sciences, Southern Methodist University, Dallas, Texas, United States of America
- Center for Drug Discovery, Design and Delivery at Dedman College, Southern Methodist University, Dallas, Texas, United States of America
| | - Johannes H. Bauer
- Department of Biological Sciences, Southern Methodist University, Dallas, Texas, United States of America
- Center for Drug Discovery, Design and Delivery at Dedman College, Southern Methodist University, Dallas, Texas, United States of America
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Chamseddin KH, Khan SQ, Nguyen MLH, Antosh M, Morris SNS, Kolli S, Neretti N, Helfand SL, Bauer JH. takeout-dependent longevity is associated with altered Juvenile Hormone signaling. Mech Ageing Dev 2012; 133:637-46. [PMID: 22940452 DOI: 10.1016/j.mad.2012.08.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 08/13/2012] [Accepted: 08/20/2012] [Indexed: 10/27/2022]
Abstract
In order to understand the molecular mechanisms of longevity regulation, we recently performed a screen designed to enrich for genes common to several longevity interventions. Using this approach, we identified the Drosophila melanogaster gene takeout. takeout is upregulated in a variety of long-lived flies, and extends life span when overexpressed. Here, we investigate the mechanisms of takeout-dependent longevity. takeout overexpression specifically in the fat body is sufficient to increase fly longevity and is additive to the longevity effects of Dietary Restriction. takeout long-lived flies do not show phenotypes often associated with increased longevity, such as enhanced stress resistance or major metabolic abnormalities. However, males exhibit greatly diminished courtship behavior, leading to a reduction in fertility. Interestingly, takeout contains a binding domain for Juvenile Hormone, a fly hormone that plays a role in the regulation of developmental transitions. Importantly, the longevity and courtship phenotypes of takeout overexpressing flies are reversed by treatment with the Juvenile Hormone analog methoprene. These data suggest that takeout is a key player in the tradeoff-switch between fertility and longevity. takeout may control fertility via modulation of courtship behavior. This regulation may occur through Juvenile Hormone binding to takeout and a subsequent reduction in Juvenile Hormone signaling activity.
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Affiliation(s)
- Khalil H Chamseddin
- Department of Biological Sciences, Southern Methodist University, 6501 Airline Drive, 238-DLS, Dallas, TX 75275, USA
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Morris SNS, Coogan C, Chamseddin K, Fernandez-Kim SO, Kolli S, Keller JN, Bauer JH. Development of diet-induced insulin resistance in adult Drosophila melanogaster. Biochim Biophys Acta Mol Basis Dis 2012; 1822:1230-7. [PMID: 22542511 DOI: 10.1016/j.bbadis.2012.04.012] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Revised: 03/26/2012] [Accepted: 04/12/2012] [Indexed: 11/18/2022]
Abstract
The fruit fly Drosophila melanogaster is increasingly utilized as an alternative to costly rodent models to study human diseases. Fly models exist for a wide variety of human conditions, such as Alzheimer's and Parkinson's Disease, or cardiac function. Advantages of the fly system are its rapid generation time and its low cost. However, the greatest strength of the fly system are the powerful genetic tools that allow for rapid dissection of molecular disease mechanisms. Here, we describe the diet-dependent development of metabolic phenotypes in adult fruit flies. Depending on the specific type of nutrient, as well as its relative quantity in the diet, flies show weight gain and changes in the levels of storage macromolecules. Furthermore, the activity of insulin-signaling in the major metabolic organ of the fly, the fat body, decreases upon overfeeding. This decrease in insulin-signaling activity in overfed flies is moreover observed when flies are challenged with an acute food stimulus, suggesting that overfeeding leads to insulin resistance. Similar changes were observed in aging flies, with the development of the insulin resistance-like phenotype beginning at early middle ages. Taken together, these data demonstrate that imbalanced diet disrupts metabolic homeostasis in adult D. melanogaster and promotes insulin-resistant phenotypes. Therefore, the fly system may be a useful alternative tool in the investigation of molecular mechanisms of insulin resistance and the development of pharmacologic treatment options.
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Affiliation(s)
- Siti Nur Sarah Morris
- Department of Biological Sciences and Center for Drug Discovery, Design and Delivery at Dedman College, 6501 Airline Drive, 238-DLS, Southern Methodist University, Dallas, TX 75275, USA
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Kolli S, Mathew KM, Thumbikat P, McClelland MR, Nair KPS. Superimposed myasthenia gravis in chronic spinal cord injury: a case report. Spinal Cord 2010; 49:1206-7. [PMID: 21173777 DOI: 10.1038/sc.2010.182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ploumis A, Kolli S, Patrick M, Owens M, Beris A, Marino RJ. Length of stay and medical stability for spinal cord-injured patients on admission to an inpatient rehabilitation hospital: a comparison between a model SCI trauma center and non-SCI trauma center. Spinal Cord 2010; 49:411-5. [DOI: 10.1038/sc.2010.132] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Bauer J, Antosh M, Chang C, Schorl C, Kolli S, Neretti N, Helfand SL. Comparative transcriptional profiling identifies takeout as a gene that regulates life span. Aging (Albany NY) 2010; 2:298-310. [PMID: 20519778 PMCID: PMC2898020 DOI: 10.18632/aging.100146] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
A major challenge in translating the positive effects of dietary restriction (DR) for the improvement of human health is the development of therapeutic mimics. One approach to finding DR mimics is based upon identification of the proximal effectors of DR life span extension. Whole genome profiling of DR in Drosophila shows a large number of changes in gene expression, making it difficult to establish which changes are involved in life span determination as opposed to other unrelated physiological changes. We used comparative whole genome expression profiling to discover genes whose change in expression is shared between DR and two molecular genetic life span extending interventions related to DR, increased dSir2 and decreased Dmp53 activity. We find twenty-one genes shared among the three related life span extending interventions. One of these genes, takeout, thought to be involved in circadian rhythms, feeding behavior and juvenile hormone binding is also increased in four other life span extending conditions: Rpd3, Indy, chico and methuselah. We demonstrate takeout is involved in longevity determination by specifically increasing adult takeout expression and extending life span. These studies demonstrate the power of comparative whole genome transcriptional profiling for identifying specific downstream elements of the DR life span extending pathway.
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Affiliation(s)
- Johannes Bauer
- Department of Molecular Biology, Cell Biology and
Biochemistry, Division of Biology and Medicine, Brown University,
Providence, RI 02912, USA
- These authors shared equally in the work
- Present address: Department of Biological
Sciences, Southern Methodist University, 6501 Airline Drive, 237-DLS,
Dallas, TX 75275, USA
| | - Michael Antosh
- Institute for Brain and Neural Systems, Brown
University, Providence, RI 02912, USA
- Department of Physics, Brown University,
Providence, RI 02912, USA
- These authors shared equally in the work
| | - Chengyi Chang
- Department of Molecular Biology, Cell Biology and
Biochemistry, Division of Biology and Medicine, Brown University,
Providence, RI 02912, USA
| | - Christoph Schorl
- Department of Molecular Biology, Cell Biology and
Biochemistry, Division of Biology and Medicine, Brown University,
Providence, RI 02912, USA
| | - Santharam Kolli
- Present address: Department of Biological
Sciences, Southern Methodist University, 6501 Airline Drive, 237-DLS,
Dallas, TX 75275, USA
| | - Nicola Neretti
- Department of Molecular Biology, Cell Biology and
Biochemistry, Division of Biology and Medicine, Brown University,
Providence, RI 02912, USA
- Institute for Brain and Neural Systems, Brown
University, Providence, RI 02912, USA
| | - Stephen L. Helfand
- Department of Molecular Biology, Cell Biology and
Biochemistry, Division of Biology and Medicine, Brown University,
Providence, RI 02912, USA
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Devonport H, Oworu O, Mohla A, Kolli S, James T. Purtscher's like retinopathy as the presenting feature of acute alcoholic pancreatitis. Eye (Lond) 2006; 20:255-7. [PMID: 15803177 DOI: 10.1038/sj.eye.6701833] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Abstract
INTRODUCTION Lid surgery under local anaesthetic is commonplace in ophthalmic practise. The most distressing part of the surgery for the patient is often the injection of local anaesthetic into the sensitive lid skin. Various methods like pre-injection warming of the anaesthetic agent, buffering pH levels, varying agents used, and using thinner gauge needles have been tried to reduce pain levels. Cooling of tissue is known to have anaesthetic properties and has been proposed as a substitute to injection of local anaesthetic in certain surgical procedures. In this study we use the anaesthetic property of cooling, as a pre local anaesthetic injection procedure ("Cryo-preparation"). The anaesthetic injection induced discomfort with and without "cryo-preparation" was then assessed. METHODS Thirty-nine patients aged 13-85 years (mean = 50, s.d. = 19) were randomly allocated and assessed. Twenty-two patients underwent local lid anaesthetic infiltration with "cryo-preparation," and 17 without. Pain monitoring was performed subjectively and objectively by scoring systems. Results were analysed using unpaired two tailed t-test on Microsoft Excel. RESULTS Significant reduction in injection pain with cryo-preparation (24.6% reduction in score) was achieved (statistically significant p = 0.039). Surgical anaesthesia was complete in all cases. CONCLUSION The study shows that "cryopreparation" by local ice application immediately prior to local anaesthetic injection reduces the sensitivity to the injection by a significant 24.6%. Thus while all the advantages of good analgesia are obtained from the injection, the distressing discomfort is reduced. This study serves as a pilot, in demonstrating a novel method of pain control for lid surgery.
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Affiliation(s)
- S Goel
- Ophthalmology Department, Leeds Teaching Hospitals.
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Farrakha M, Shyam V, Bebars GA, Yacoub M, Bindu K, Kolli S. Ambulatory inguinal hernia repair with prolene hernia system (PHS). Hernia 2005; 10:2-6. [PMID: 16091852 DOI: 10.1007/s10029-005-0007-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2004] [Accepted: 04/19/2005] [Indexed: 02/06/2023]
Abstract
Study was conducted to evaluate the feasibility and benefits of inguinal hernia repair with prolene hernia system (PHS) mesh under local anaesthesia as a day surgery procedure in a multinational society of United Arab Emirates. One hundred and seventy-eight inguinal hernias in 172 consecutive adults of whom 154 (89.5%) fitted the criteria of inclusion in the day-case surgery settings were operated upon including one early recurrence. Conversion from local to general anaesthesia was required in five (2.8%) patients. The mean operation time was 65 min, including the anaesthesia injection. The mean hospital stay was 2.1 days for all patients and 1.01 days for those who fitted in the ambulatory surgery program. Inguinal hernia repair using the PHS technique under local anaesthesia could be mastered by many of the surgeons in our hospital with minimal morbidity and short hospital stay with a potential to lessen recurrence.
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Affiliation(s)
- M Farrakha
- Mafraq Hospital, P. O. Box 2951, Abu Dhabi, United Arab Emirates.
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Kolli S, Buchmann AM, Williams J, Weitzman S, Thimmapaya B. Antisense-mediated depletion of p300 in human cells leads to premature G1 exit and up-regulation of c-MYC. Proc Natl Acad Sci U S A 2001; 98:4646-51. [PMID: 11296295 PMCID: PMC31888 DOI: 10.1073/pnas.081141998] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2000] [Indexed: 11/18/2022] Open
Abstract
The cAMP-response element-binding protein (CREB)-binding protein and p300 are two highly conserved transcriptional coactivators and histone acetyltransferases that integrate signals from diverse signal transduction pathways in the nucleus and also link chromatin remodeling with transcription. In this report, we have examined the role of p300 in the control of the G(1) phase of the cell cycle in nontransformed immortalized human breast epithelial cells (MCF10A) and fibroblasts (MSU) by using adenovirus vectors expressing p300-specific antisense sequences. Quiescent MCF10A and MSU cells expressing p300-specific antisense sequences synthesized p300 at much reduced levels and exited G(1) phase without serum stimulation. These cells also showed an increase in cyclin A and cyclin A- and E-associated kinase activities characteristic of S phase induction. Further analysis of the p300-depleted quiescent MCF10A cells revealed a 5-fold induction of c-MYC and a 2-fold induction of c-JUN. A direct target of c-MYC, CAD, which is required for DNA synthesis, was also found to be up-regulated, indicating that up-regulation of c-MYC functionally contributed to DNA synthesis. Furthermore, S phase induction in p300-depleted cells was reversed when antisense c-MYC was expressed in these cells, indicating that up-regulation of c-MYC may directly contribute to S phase induction. Adenovirus E1A also induced DNA synthesis and increased the levels of c-MYC and c-JUN in serum-starved MCF10A cells in a p300-dependent manner. Our results suggest an important role of p300 in cell cycle regulation at G(1) and raise the possibility that p300 may negatively regulate early response genes, including c-MYC and c-JUN, thereby preventing DNA synthesis in quiescent cells.
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Affiliation(s)
- S Kolli
- Department of Microbiology and Immunology and Robert H. Lurie Cancer Center, and Department of Medicine, Northwestern University Medical School, Chicago, IL 60611, USA
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DeMeo M, Kolli S, Keshavarzian A, Borton M, Al-Hosni M, Dyavanapalli M, Shiau A, Tu N, Frommel T, Zarling E, Goris G, Shawaryn G, Mobarhan S. Beneficial effect of a bile acid resin binder on enteral feeding induced diarrhea. Am J Gastroenterol 1998; 93:967-71. [PMID: 9647030 DOI: 10.1111/j.1572-0241.1998.00289.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Diarrhea is a complication of enteral feeding, occurring in up to 68% of critically ill patients. We hypothesized that prolonged fasting results in abnormal bile acid homeostasis. Subsequent enteral feeding then causes a relative luminal excess of bile acids, which leads to choleretic diarrhea. Hence, diarrhea induced by enteral feeding should improve with the use of a bile acid binding agent, such as Colestid Granules. METHODS We evaluated the effect of Colestid on enteral feeding-induced diarrhea in a double-blind placebo-controlled study. Nineteen patients who were nil per os (NPO) for 5 days before initiation of enteral feeding were enrolled in the study and treatment continued for 7 days. The severity and frequency of diarrhea were quantified. Fecal bile acids were measured enzymatically. Stool nutrient loss was measured by fat extraction, microkjeldahl determination of nitrogen, and bomb calorimetry of dried fecal specimens. RESULTS Enteral feeding resulted in a high frequency of diarrhea (95%) at some time during the observation period. The majority of episodes of diarrhea in both groups were of low volume. Colestid significantly decreased the prevalence and severity of diarrhea. Colestid had no significant effect on fecal calorie or nutrient losses. The average bile acid concentration in the stool increased significantly after enteral feeding. CONCLUSION Enteral feeding-induced diarrhea is, at least in part, due to malabsorption of bile acids. The bile acid resin binding agent Colestid improves diarrhea induced by enteral feeding.
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Affiliation(s)
- M DeMeo
- Department of Medicine (Division of Digestive Diseases and Nutrition), Loyola University Medical School, Maywood, Illinois, USA
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Abstract
The mammalian protein synthesizing system is highly organized in vivo, and its substrate, tRNA, is channeled throughout the translation process. However, the cellular components responsible for this organization are not known. To examine this question a series of studies was carried out using intact and permeabilized Chinese hamster ovary cells. We show that cold shock dramatically reduces the protein synthetic capacity of these cells by as much as 95%. The loss of activity can be reversed by a short recovery period under conditions that allow energy metabolism to occur; transcription and translation during the recovery period are not needed. While individual components of the translation apparatus are not inactivated by the cold shock, the supramolecular organization of the system appears to be altered and F-actin levels are found to decrease. Resumption of protein synthesis during the recovery period coincides closely with the restoration of F-actin to normal levels. Moreover, disruption of actin filaments, but not microtubules, also leads to a major reduction in translation. These data support the conclusion that the cellular microfilament network plays an important role in the structure and function of the translation system and that perturbations of this network can have profound effects on protein synthesis.
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Affiliation(s)
- R Stapulionis
- Department of Biochemistry, University of Connecticut Health Center, Farmington, Connecticut 06030, USA
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Kolli S. Health services for India's urban poor. Natl Med J India 1997; 10:256. [PMID: 9401395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Mobarhan S, Shiau A, Grande A, Kolli S, Stacewicz-Sapuntzakis M, Oldham T, Liao Y, Bowen P, Dyavanapalli M, Kazi N. beta-Carotene supplementation results in an increased serum and colonic mucosal concentration of beta-carotene and a decrease in alpha-tocopherol concentration in patients with colonic neoplasia. Cancer Epidemiol Biomarkers Prev 1994; 3:501-5. [PMID: 8000301] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The aim of this study was to evaluate the colonic mucosal beta-carotene (BC) concentration following supplementation with BC and to determine if an increase in BC concentration influences vitamin E (alpha-tocopherol) status. The concentration of BC and alpha-tocopherol was assessed in serum and colonic tissue obtained from subjects with a history of colonic polyps or resected cancer (Dukes A, B1, or B2). Serum and mucosal biopsy samples were obtained prior to and following 3 months daily p.o. supplementation with 30 mg of BC or placebo. The concentration of BC was significantly increased in serum and colonic mucosa from both polyp and cancer subjects following supplementation as compared to presupplementation values and values from subjects receiving a placebo. The concentration of alpha-tocopherol in serum from cancer subjects was significantly decreased in samples obtained at the end of 3 months of BC supplementation as compared to placebo-matched controls. In BC-supplemented polyp subjects the tissue concentration of alpha-tocopherol was also significantly decreased relative to presupplementation values. The results indicate that BC supplementation does result in a significant accumulation of BC in the colonic mucosa but that the alpha-tocopherol concentration in both serum and colonic tissue may be compromised by an increased intake of BC. The mechanism for the decrease in alpha-tocopherol in conjunction with the increase in BC will require further study in order to develop strategies which will prevent vitamin E deficiency in BC-supplemented individuals.
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Affiliation(s)
- S Mobarhan
- Department of Medicine, Loyola University Medical Center, Maywood, Illinois 60153
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Kolli S. Developmental disabilities--a case for early intervention. Natl Med J India 1993; 6:290-1. [PMID: 7524890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- S Kolli
- Sushant Clinic, New Delhi, India
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Abstract
A case of fatal radiation hepatitis occurring after treatment with 2200 rad given by the moving strip technique is presented. This fatality occurred in a 28-year-old woman with persistent ovarian carcinoma despite prolonged chemotherapy. Scans of the liver using computerized tomography, 99mTc sulfur colloid, and 99mTc diisopropyl iminodiacetic acid showed abnormalities only in sulfur colloid uptake and these resolved late in the course. Death was caused by progressive hepatic and renal failure. Postmortem examination showed changes typical of radiation hepatitis. Only 32 cases of radiation hepatitis have been previously reported and they are reviewed. The possible role of prolonged prior chemotherapy in enhancing sensitivity to radiotherapy is considered.
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