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Puri V, Kaur VP, Singh A, Singh C. Recent advances on drug delivery applications of mucopenetrative/mucoadhesive particles: A review. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103712] [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: 11/26/2022]
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Heiden B, Eaton D, Chang S, Yan Y, Schoen M, Meyers B, Kozower B, Puri V. Comparison of National Comprehensive Cancer Network and American College of Surgeons Commission on Cancer Lymph Node Sampling Guidelines for Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2021.10.171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Chaudhary KR, Puri V, Singh A, Singh C. A review on recent advances in nanomedicines for the treatment of pulmonary tuberculosis. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.103069] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Puri V, Chaudhary KR, Singh A, Singh C. Inhalation potential of N-Acetylcysteine loaded PLGA nanoparticles for the management of tuberculosis: In vitro lung deposition and efficacy studies. Curr Res Pharmacol Drug Discov 2022; 3:100084. [PMID: 35112077 PMCID: PMC8790477 DOI: 10.1016/j.crphar.2022.100084] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 01/06/2022] [Accepted: 01/12/2022] [Indexed: 12/28/2022] Open
Abstract
Several studies have stated that mucus is a critical hurdle for drug delivery to the mucosal tissues. As a result, Polymeric nanoparticles that can overcome mucus barriers are gaining popularity for controlled drug delivery into intra-macrophages to attain high intracellular drug concentration. The present study was aimed to fabricate inhalable N-acetylcysteine (NAC) modified PLGA mucus penetrating particles using the double emulsion method (w/o/w) for target delivery to alveolar macrophages and minimize the dose-related adverse effects, efficiently encapsulate hydrophilic drug, sustain the release profile and prolong the retention time for the management of tuberculosis. Among the numerous formulations, the drug/polymer ratio of 1:10 with 0.50% PVA concentration and sonication time for 2 min s was chosen for further research. The formulated nanoparticles had a mean particle size of 307.50 ± 9.54 nm, PDI was 0.136 ± 0.02, zeta potential about -11.3 ± 0.4 mV, decent entrapment efficiency (55.46 ± 2.40%), drug loading (9.05 ± 0.22%), and excellent flowability. FTIR confirmed that NAC and PLGA were compatible with each other. SEM graphs elucidated that the nanoparticles were spherically shaped with a slightly rough surface whereas TEM analysis ensured the nanometer size nanoparticles and coating of lipid over NPs surface. PXRD spectrum concluded the transformation of the drug from crystalline to amorphous state in the formulation. In vitro release pattern was biphasic started with burst release (64.67 ± 1.53% within 12hrs) followed by sustained release over 48hrs thus enabling the prolonged replenishing of NAC. In vitro lung deposition study pronounced that coated NAC-PLGA-MPPs showed favorable results in terms of emitted dose (86.67 ± 2.52%), MMAD value (2.57 ± 0.12 μm), GSD value (1.55 ± 0.11 μm), and FPF of 62.67 ± 2.08% for the deposition and targeting the lungs. Finally, in vitro efficacy studies demonstrated that NAC-PLGA-MPPs presented more prominent antibacterial activity against MTB H37Rv strain as compared to NAC. Hence, PLGA based particles could be a better strategy to deliver the NAC for lung targeting.
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Affiliation(s)
- Vishal Puri
- Department of Pharmaceutics, ISF College of Pharmacy, GT Road NH-95, Ghal Kalan, Moga, Punjab, 142001, India
| | - Kabi Raj Chaudhary
- Department of Pharmaceutics, ISF College of Pharmacy, GT Road NH-95, Ghal Kalan, Moga, Punjab, 142001, India
| | - Arti Singh
- Department of Pharmacology, ISF College of Pharmacy, GT Road NH-95, Ghal Kalan, Moga, Punjab, 142001, India
| | - Charan Singh
- Department of Pharmaceutics, ISF College of Pharmacy, GT Road NH-95, Ghal Kalan, Moga, Punjab, 142001, India
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Dabla PK, Sharma S, Mir R, Puri V. Significant Association of Antiepileptic Drug Polytherapy with Decreased FT4 Levels in Epileptic Patients. Indian J Clin Biochem 2022; 37:107-112. [PMID: 35125700 PMCID: PMC8799786 DOI: 10.1007/s12291-020-00946-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 12/08/2020] [Indexed: 01/03/2023]
Abstract
Epileptic patients have to continue anti-epileptic drugs (AED) over a long period of time which can have deleterious effects on the endocrine system including the thyroid hormones with rare check. Risk factors for the development of thyroid dysfunction are still unclear. Therefore the aim of study was to evaluate thyroid functions in epileptic patients receiving anti-epileptic drugs (AED) as monotherapy and polytherapy and to determine potential risk of low thyroid function in epileptic patients receiving treatment. This cross-sectional study included 100 epilepsy patients more than 12 years of age. Serum levels of free thyroxin (FT4), free triiodothyronine (FT3), and thyroid stimulating hormone (TSH) were evaluated in all subjects in addition to serum AED levels. TSH levels were found to be significantly higher in the polytherapy subgroup (p < 0.05) in comparison to the monotherapy group. 44% of the patients in the VPA monotherapy group had raised TSH levels and 41.2% of the patients on CBZ had low FT4. A significant negative correlation was observed between CBZ and FT4 (p < 0.05). Female sex and old age were additional risk factors detected for deranged thyroid function. Female patients with epilepsy, an older age and AED polytherapy were found to be associated with a higher risk of thyroid dysfunction. Thus, Thyroid function in these patients should be monitored closely. In conclusion, we observed significant changes in thyroid hormone levels in patients receiving antiepileptic treatment in both monotherapy and polytherapy. Elevated CBZ levels were significantly associated with decreased FT4 levels.
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Affiliation(s)
- P. K. Dabla
- Department of Biochemistry, G.B Pant Institute of Postgraduate Medical Education & Research, Associated To Maulana Azad Medical College, New Delhi, India
| | - S. Sharma
- Department of Biochemistry, Chacha Nehru Bal Chikitsalya, Associated to Maulana Azad Medical College, New Delhi, India
| | - R. Mir
- Prince Fahd Bin Sultan Research Chair, Department of Medical Lab Technology, Faculty of Applied Medical Sciences, University of Tabuk, Tabuk, Kingdom of Saudi Arabia
| | - V. Puri
- Department of Neurology, G.B Pant Institute of Postgraduate Medical Education & Research, Associated To Maulana Azad Medical College, New Delhi, India
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Agabalogun T, Heiden B, Spraker M, Badiyan S, Vlacich G, Morgensztern D, Waqar S, Kozower B, Meyers B, Robinson C, Puri V, Samson P. Post-Operative Radiation Therapy for Non-Small Cell Lung Cancer Patients With Higher Positive to Examined Lymph Node Ratio is Associated With Improved Overall Survival. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1216] [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: 11/25/2022]
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Samson P, Perez M, Carpenter L, Roach M, Bradley J, Kozower B, Meyers B, Puri V, Robinson C. Comparing Prospective Quality of Life Assessments Among Clinical Stage I Non-Small Cell Lung Cancer Patients Receiving Surgery versus Stereotactic Body Radiation Therapy at One Year. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1170] [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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Samson P, Roach M, Bradley J, Carpenter L, Kozower B, Meyers B, Puri V, Robinson C. Increased Rates of Serious Adverse Events among Stage I Non-small Cell Lung Cancer Surgical Patients who were Predicted to Receive Stereotactic Body Radiation Therapy by Treatment Allocation Modeling. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1185] [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: 11/26/2022]
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Bedair B, Witt C, Byers D, Kulkarni H, Alexander-Brett J, Tague L, Nava R, Puri V, Kreisel D, Trulock E, Hachem R. Lung Protective Ventilation and Primary Graft Dysfunction. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.957] [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] Open
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Sinha N, Puri V, Kumar V, Nada R, Rastogi A, Jha V, Puri S. SAT-164 EVALUATION OF miR-663a EXPRESSION IN HUMAN KIDNEY PROXIMAL TUBULAR CELLS DERIVED EXOSOMES AND ITS PARENT CELLS UNDER DIABETIC STATE. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.174] [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] Open
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Bhat N, Samson P, Robinson C, Park H, Roach M, Badiyan S, Puri V, Bradley J, Vlacich G. Palliative Treatment Utilization and Outcomes in Elderly Patients with Locally Advanced Esophageal Carcinoma: A Review of the National Cancer Database. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Dabla P, Shikha S, Puri V. Effect of antiepileptic drug therapy on calcium metabolism- a study in North India. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Samson P, Robinson C, Kennedy W, Gabani P, Roach M, Bradley J, Kozower B, Puri V, Meyers B. Treatment Allocation Modeling and Risk-Stratified Outcomes for Clinical Stage I Non-small Cell Lung Cancer Patients Receiving Surgery versus Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.01.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Furuya Y, Witt C, Trulock E, Byers D, Kulkarni H, Tague L, Aguilar P, Kreisel D, Puri V, Gelman A, Hachem R. Extracorporeal Photopheresis (ECP) in the Management of Chronic Lung Allograft Dysfunction. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.397] [Citation(s) in RCA: 1] [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: 11/16/2022] Open
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Bain K, Fester K, Iuppa J, Bakos K, Mittler B, Richardson K, Aguilar P, Alexander-Brett J, Byers D, Kulkarni H, Trulock E, Witt C, Yusen R, Puri V, Kreisel D, Hachem R. A Pilot Randomized Placebo Controlled Trial of Inhaled Beclomethasone after Community-Acquired Respiratory Viral (CARV) Infection in Lung Transplant Recipients (LTR). J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Somani R, Gupta MP, Jaidka S, Singh DJ, Puri V, Kumar D. Dermatoglyphics as a Noninvasive Tool for Predicting Dental Caries in Cerebral Palsy and Healthy Children: An In Vivo Study. Int J Clin Pediatr Dent 2019; 12:237-242. [PMID: 31708622 PMCID: PMC6811938 DOI: 10.5005/jp-journals-10005-1630] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Aim To find the association of dermatoglyphics and dental caries in normal and cerebral palsy (CP) children. Materials and methods A total of 150 children of age group 6–12 years were selected and divided into three equal groups. Group I constituted of 50 CP caries-active children, group II constituted of 50 healthy caries active children, and group III consisted of 50 healthy caries-free children. World Health Organization (WHO) criteria were used for diagnosis and recording of decayed, missing, filled teeth (DMFT)/deft scores. Fingerprints of both hands were taken using a stamp pad and analyzed using the Cummin and Midlo method. Results The results were statistically analyzed using one-way analysis of variance (ANOVA) and post hoc Tukey's honestly significant difference (HSD). The data for the entire study were calculated using statistical package for social sciences (SPSS) statistical software 19.0 version. The mean DMFT/deft score was the highest for the CP caries-active group compared to the healthy caries-active and healthy caries-free children. Dermatoglyphic pattern distribution in the CP caries-active group showed more whorls and that in the healthy caries-free group showed more arches. Intergroup comparisons for DMFT/deft and dermatoglyphic patterns were significant except between CP caries-active children and healthy caries-active children. Conclusion Association of dermatoglyphics and dental caries was observed among CP caries-active children, healthy caries-active children, and healthy caries-free children. This association can be helpful in identifying the possible genetic predisposition and early prediction of dental caries in CP children, so as to initiate oral health measures at an early stage. Clinical significance Maintaining oral hygiene has always been a challenge in children because of many difficulties like behavior management and lack of dexterity, and it becomes all the more difficult in the case of children with special needs. Dermatoglyphics can be proven to be a very useful, noninvasive, and economical tool for the preliminary diagnosis of diseases of suspected genetic origin like dental caries and CP. How to cite this article Somani R, Gupta MP, et al. Dermatoglyphics as a Noninvasive Tool for Predicting Dental Caries in Cerebral Palsy and Healthy Children: An In Vivo Study. Int J Clin Pediatr Dent 2019;12(3):237–242.
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Affiliation(s)
- Rani Somani
- Department of Pedodontics and Preventive Dentistry, Divya Jyoti (DJ) College of Dental Sciences and Research, Modinagar, Ghaziabad, Uttar Pradesh, India
| | - Monika P Gupta
- Department of Pedodontics and Preventive Dentistry, Divya Jyoti (DJ) College of Dental Sciences and Research, Modinagar, Ghaziabad, Uttar Pradesh, India
| | - Shipra Jaidka
- Department of Pedodontics and Preventive Dentistry, Divya Jyoti (DJ) College of Dental Sciences and Research, Modinagar, Ghaziabad, Uttar Pradesh, India
| | - Deepti J Singh
- Department of Pedodontics and Preventive Dentistry, Divya Jyoti (DJ) College of Dental Sciences and Research, Modinagar, Ghaziabad, Uttar Pradesh, India
| | - Vishal Puri
- Department of Pediatrics, Military Hospital, Meerut, Uttar Pradesh, India
| | - Dilip Kumar
- Department of Pathology, Max Superspeciality Hospital, Saket, New Delhi, India
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Samson P, Roach M, Bradley J, Carpenter L, Kozower B, Meyers B, Puri V, Robinson C. Comprehensive Baseline Clinical Assessments in Stage I Non-Small Cell Lung Cancer Patients May Facilitate Treatment Allocation Between Stereotactic Body Radiation Therapy and Surgery. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Annamalai AK, Gill AJ, Shinto A, Sivakumar R, Singhi PK, Prabhu VA, Gopalakrishnan C, Chelian M, Sridhar S, Shanthi R, Puri V, Gururaj N, Srinivasan KG, Clifton-Bligh R, Gurnell M. Oncogenic osteomalacia. QJM 2018; 111:421-422. [PMID: 29319792 DOI: 10.1093/qjmed/hcy004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- A K Annamalai
- Department of Endocrinology, Ashwin Speciality Hospital, Madurai, Tamil Nadu, India
| | - A J Gill
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, University of Sydney, and NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, Sydney, NSW, Australia
| | - A Shinto
- Department of Nuclear Medicine, Kovai Medical Centre Hospital, Coimbatore, Tamil Nadu, India
| | - R Sivakumar
- Department of Orthopaedics, Preethi Hospital, Madurai, Tamil Nadu, India
| | - P K Singhi
- Department of Orthopaedics, Preethi Hospital, Madurai, Tamil Nadu, India
| | - V A Prabhu
- Department of Surgery and Anaesthesiology, Ashwin Speciality Hospital, Madurai, Tamil Nadu, India
| | - C Gopalakrishnan
- Department of Surgery and Anaesthesiology, Ashwin Speciality Hospital, Madurai, Tamil Nadu, India
| | - M Chelian
- Department of Surgery and Anaesthesiology, Ashwin Speciality Hospital, Madurai, Tamil Nadu, India
| | - S Sridhar
- Department of Endocrinology, Madurai Medical College, Madurai, Tamil Nadu, India
| | - R Shanthi
- Department of Pathology, Aravind Eye Care Hospitals, Madurai, Tamil Nadu, India
| | - V Puri
- RIA, Department of Laboratory Medicine, Hinduja Hospital, Mumbai, Maharashtra, India
| | - N Gururaj
- CSI College of Research and Dental Sciences, Madurai, Tamilnadu, India
| | | | - R Clifton-Bligh
- Department of Endocrinology, Kolling Institute, Royal North Shore Hospital, Sydney, NSW, Australia
| | - M Gurnell
- Wellcome Trust-MRC Institute of Metabolic Science, University of Cambridge and NIHR Cambridge Biomedical Research Centre, Addenbrooke's Hospital, Cambridge, UK
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Tsui K, Aguilar P, Byers D, Yusen R, Furuya Y, Tague L, Gelman A, Puri V, Kreisel D, Trulock E, Hachem R. Risk Factors for the Development of Donor-specific Antibodies and Their Impact on Outcomes After Lung Transplantation. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Samson P, Robinson C, Lockhart A, Roach M, Parikh P, Puri V, Vlacich G, Bradley J. Concurrent Chemoradiation is Associated With Improved Overall Survival Over Radiation Alone in the Treatment of Non-operative Clinical T1N0M0 Esophageal Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Samson P, Kozower B, Roach M, DeWees T, Carpenter L, Gal K, Bradley J, Meyers B, Puri V, Robinson C, Crabtree T. Development of a Prospective Clinical Database for Stage I Non–small Cell Lung Cancer Patients to Identify High-Risk Individuals Appropriate for Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Samson P, Keogan K, Robinson C, Bradley J, Roach M, Crabtree T, Kozower B, Puri V, Meyers B. Treatment Allocation Modeling for Clinical Stage I Non–small Cell Lung Cancer Patients to Facilitate the Shared Decision Making Process for Stereotactic Body Radiation Therapy Versus Surgical Resection. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1781] [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: 12/01/2022]
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Abstract
Paroxysmal nocturnal hemoglobinuria (PNH) is a rare, acquired, potentially life-threatening disease of blood, characterized by complement-induced intravascular hemolytic anemia and thrombosis. PNH can sometimes present directly with renal manifestations, without showing any hematological manifestation. It, therefore, becomes essential for clinicians and pathologists to be aware of the spectrum of renal changes in PNH. The aim of this study was to document the morphologic changes observed in renal biopsies in patients with PNH. This is an observational study. We report three cases that presented with acute or chronic renal insufficiency and were suspected as PNH on viewing their renal biopsy in light of their clinical and laboratory details. All the three cases were confirmed as PNH on the basis of flow cytometric analysis of CD55 and CD59. Renal biopsy in these patients showed a variety of morphologic changes, however the most consistent finding was moderate-to-heavy siderosis in their kidneys. PNH per se may be difficult to diagnose clinically and sometimes present directly with renal manifestations. It is, therefore, prudent for nephrologists and nephropathologists to be aware of the spectrum of renal changes in PNH.
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Affiliation(s)
- V Puri
- Department of Pathology, University College of Medical Sciences, New Delhi, India
| | - A Gandhi
- Department of Pathology, University College of Medical Sciences, New Delhi, India
| | - S Sharma
- Department of Pathology, University College of Medical Sciences, New Delhi, India
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Robinson C, Samson P, Bradley J, Roach M, DeWees T, Waqar S, Baggstrom M, Govindan R, Higgins K, Simone C, Grover S, Puri V, Morgensztern D. Patterns of Care and Survival for Early Versus Delayed Radiation Therapy (RT) in Limited-Stage Small Cell Lung Cancer (LS-SCLC): A Review of the National Cancer Data Base. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Affiliation(s)
- S Sharma
- Department of Neurology, GIPMER, New Delhi, 110002, India.
| | - A Gupta
- Department of Neurology, GIPMER, New Delhi, 110002, India.
| | - A Deshmukh
- Department of Neurology, GIPMER, New Delhi, 110002, India.
| | - V Puri
- Department of Neurology, GIPMER, New Delhi, 110002, India.
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Raemdonck DV, Levvey B, Edwards L, Stehlik J, Erasmus M, Glanville A, Hertz M, Hopkins P, Chambers D, Musk M, Budev M, Mason D, Puri V, Yusen R, D’Ovidio F, Keshavjee S, Cypel M, Snell G. Characteristics of Various Categories of Controlled Donors after Circulatory Death Do Not Affect Outcome after Lung Transplantation; an Analysis of ISHLT DCD Registry Data. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Choudhury M, Singh S, Puri V, Nain M. Ileocaecal Metastasis from Carcinoma Cervix presenting with bowel obstruction: A rare case report. Indian J Cancer 2016; 52:179-80. [PMID: 26853393 DOI: 10.4103/0019-509x.175808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
| | | | - V Puri
- Department of Pathology, Lady Hardinge Medical College, New Delhi, India
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Abstract
The understanding of the genomics of the renal tissue has gathered a considerable interest and is making rapid progress. The molecular mechanisms as well as the precise function of the associated molecular components toward renal pathophysiology have recently been realized. For the cystic kidney disease, the regulation of gene expression affecting epithelial cells proliferation, apoptosis as well as process of differentiation/de-differentiation represent key molecular targets. For the cystic disorders, molecular targets have been identified, which besides lending heterogeneity to cysts may also provide tools to unravel their functional importance to understand the renal tissue homeostasis. This review focuses on providing comprehensive information about the transcriptional regulatory role of hepatocyte nuclear factor-1β, a homeoprotein, as well as its interacting partners in renal tissue development and pathophysiology.
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Affiliation(s)
- V Singh
- Department of Biochemistry, Panjab University, Chandigarh, India
| | - S K Singla
- Department of Biochemistry, Panjab University, Chandigarh, India
| | - V Jha
- Department of Nephrology, PGIMER, Chandigarh, India
| | - V Puri
- Centre for Systems Biology and Bioinformatics, Under University Institute of Emerging Areas in Science and Technology, Panjab University, Chandigarh, India
| | - S Puri
- Biotechnology Branch, University Institute of Engineering and Technology, Chandigarh, India ; Centre for Stem Cell and Issue Engineering, University Institute of Emerging Areas in Science and Technology, Panjab University, Chandigarh, India
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Puri V, Kanitkar M, Chand S, Arora M. Atypical presentation of congenital diaphragmatic hernia. Med J Armed Forces India 2014; 70:286-9. [PMID: 25378787 DOI: 10.1016/j.mjafi.2012.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Accepted: 08/06/2012] [Indexed: 10/27/2022] Open
Affiliation(s)
- Vishal Puri
- Graded Specialist (Pediatrics), Military Hospital, Mhow, India
| | - Madhuri Kanitkar
- Consultant (Pediatrics & Pediatric Nephrology), Base Hospital, Delhi Cantt, India
| | - Sunit Chand
- Classified Specialist (Radiology), 167 MH, India
| | - Manu Arora
- Consultant (Surgery and Pediatric Surgery), Army Hospital (R&R), Delhi Cantt, India
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Thomas S, Babu RJ, Agarwal K, Puri V, Jain M, Andley M, Tudu SK. Effect of neoadjuvant chemotherapy on stromal CD10 antigens in breast cancer - a preliminary study. Indian J Cancer 2013; 50:46-51. [PMID: 23713046 DOI: 10.4103/0019-509x.112299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION CD10 is a zinc-dependent peptidase (metalloproteinase). Stromal CD10 expression in breast cancer correlates with poor prognosis, oestrogen receptor negativity and higher grade. CD10 may be a potential target of new cancer therapies as it is involved in cleavage of doxorubicin. AIM To evaluate the effect of neo-adjuvant anthracycline-based chemotherapy on status of stromal CD10 antigens in breast cancer. MATERIALS AND METHODS Patients with invasive breast cancer scheduled for anthracycline-based neo-adjuvant chemotherapy were included in the study. Tumor stromal CD10 expression was estimated before and after 3 cycles of chemotherapy, and change in its status was correlated with clinical response to chemotherapy. RESULTS 16 out of the 29 patients had strong CD10 expression; in these 16 patients, 14 (87.5%) were hormone receptor negative, and 14 (87.5%) had HER-2/neu overexpression. Stromal CD10 expression remained same in 13 out of 29 cases (44.83%) after chemotherapy. There was a change in CD10 expression in the remaining 16 cases (55.17%); in 13 cases (44.83%) it decreased from its pre-chemotherapy status, while its expression increased in 3 cases (10.34%). In cases of complete and partial clinical response, there was no increase in CD10 expression. Where CD10 expression had increased after chemotherapy, there was either a minor response or no response to chemotherapy. In 13 cases where CD10 expression had decreased, 12 cases had a clinical response to chemotherapy. CONCLUSIONS Strong CD10 expression correlates with hormone receptor negativity and HER-2/neu overexpression. Stromal CD10 expression in breast cancer is not static and changes with neo-adjuvant anthracycline-based chemotherapy. A stable or decrease in CD10 expression correlates with complete or partial clinical response, while an increase in CD10 expression appears to correlate with poor clinical response. A larger series is required to determine the clinical significance of these changes. As stromal CD10 expression and its change with chemotherapy may have a prognostic significance, they should be documented in breast cancer patients before and after chemotherapy.
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Affiliation(s)
- S Thomas
- Department of Surgery, Lady Hardinge Medical College, Shaheed Bhagat Singh Marg, New Delhi, India
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Swaminathan V, Prakasam S, Puri V, Srinivasan M. Role of salivary epithelial toll-like receptors 2 and 4 in modulating innate immune responses in chronic periodontitis. J Periodontal Res 2013; 48:757-65. [PMID: 23679005 DOI: 10.1111/jre.12066] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/28/2013] [Indexed: 01/21/2023]
Abstract
BACKGROUND AND OBJECTIVE Chronic periodontitis is initiated by sequential colonization with a broad array of bacteria and is perpetuated by an immune-inflammatory response to the changing biofilm. Host recognition of microbes is largely mediated by toll-like receptors (TLRs), which interact with conserved pathogen-associated molecular patterns. Based on ligand recognition, TLR-2 and TLR-4 interact with most periodontal pathogens. Extracrevicular bacterial reservoirs, such as the oral epithelial cells, contribute to the persistence of periodontitis. Human saliva is a rich source of oral epithelial cells that express functional TLRs. In this study we investigated the role of salivary epithelial cell (SEC) TLR-2 and TLR-4 in patients with generalized chronic periodontitis. MATERIAL AND METHODS Unstimulated whole saliva (UWS) was collected from patients with generalized chronic periodontitis and from healthy individuals after obtaining informed consent. Epithelial cells isolated from each UWS sample were assessed for TLR-2, TLR-4, peptidoglycan recognition protein (PGRP)-3 and PGRP-4 by quantitative real-time PCR. In addition, the SECs were stimulated in vitro with microbial products for up to 24 h. The culture supernatant was assessed for cytokines by ELISA. RESULTS Stimulation with TLR-2- or TLR-4-specific ligands induced cytokine secretion with differential kinetics and up-regulated TLR2 and TLR4 mRNAs, respectively, in cultures of SECs from patients with periodontitis. In addition, the SECs from patients with periodontitis exhibited reduced PGRP3 and PGRP4 mRNAs, the TLR-responsive genes with antibacterial properties. CONCLUSION SECs derived from the UWS of patients with chronic periodontitis are phenotypically distinct and could represent potential resources for assessing the epithelial responses to periodontal pathogens in the course of disease progression and persistence.
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Affiliation(s)
- V Swaminathan
- Department of Periodontics and Allied Health, School of Dentistry, Indiana University Purdue, University at Indianapolis, Indianapolis, IN, USA
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Cypel M, Levvey B, Van Raemdonck D, Erasmus M, Love R, Mason D, Glanville A, Stehlik J, Herz M, Whitson B, Puri V, Dark J, Hopkins P, Snell G, Keshavjee S. Favorable Outcomes of Donation after Cardiac Death in Lung Transplantation: A Multicenter Study. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Tripathi M, Jain DC, Devi MG, Jain S, Saxena V, Chandra PS, Radhakrishnan K, Behari M, Gupta M, Puri V, Mehndiratta MM, Bala K, Anand KS, Rawat S, Shah PU, Gulati S, Johri S, Nadkarni VV, Chandra PS, Bachani D. Need for a national epilepsy control program. Ann Indian Acad Neurol 2012; 15:89-93. [PMID: 22566719 PMCID: PMC3345606 DOI: 10.4103/0972-2327.94989] [Citation(s) in RCA: 21] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 02/08/2012] [Accepted: 02/14/2012] [Indexed: 11/29/2022] Open
Abstract
This article briefly outlines the proposed national epilepsy control program. The content of the article is based on four meetings held by invitation of the Ministry of Health. Invitees by ministry – Drs. D. C. Jain, M. Gourie Devi, V. Saxena, S. Jain, P. Satish. Chandra, M. Gupta, K. Bala, V. Puri, K. S. Anand, S. Gulati, S. Johri, P. S. Chandra, M. Behari, K. Radhakrishnan, D. Bachani. Presentations were made by Dr. M. Tripathi.The program will involve all neurologists across the country in teaching and training at state levels and a central monitoring committee.
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Affiliation(s)
- M Tripathi
- Department of Neurology, All India Institute of Medical Sciences, Delhi, India
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Abstract
Metastatic tuberculous abscesses and gummas are unusual forms of cutaneous tuberculosis. They result from haematogeneous spread of the mycobacterium from a primary focus during a period of impaired immunity. A 5-year-old boy is reported who presented with spinal tuberculosis and bilateral subcutaneous swelling of the cheeks owing to tuberculous gummas.
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Affiliation(s)
- S Shukla
- Departments of Pathology and Pediatrics, Lady Hardinge Medical College, New Delhi, India
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Chabra S, Ranjan M, Bhandari R, Kaur T, Aggrawal M, Puri V, Mahajan N, Kaur IP, Puri S, Sobti RC. Solid lipid nanoparticles regulate functional assortment of mouse mesenchymal stem cells. J Stem Cells Regen Med 2011; 7:75-9. [PMID: 24693174 PMCID: PMC3908271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Accepted: 05/16/2011] [Indexed: 03/19/2024]
Abstract
A rapid decline in self-renewability, viability and function, of isolated stem cells are major hurdles in developing cell based therapies. There has been an increasing interest towards identifying a support material for maintaining stem cell features of the isolated cells. Pioneering observations of the present paper, demonstrate functionally diverse potential of Solid Lipid Nanoparticles (SLNs) in deciding the fate & behavior of mouse mesenchymal stem cell. The evidences are provided to show the dual nature of the SLNs for being a scaffold for the stem cell attachment, to retain stemness, and as reagent for inducing stem cell differentiation. Scanning electron microscopic examinations together with expression analysis were used to conform to such observations. Results of the study thus suggest that Solid lipid nanoparticles can be used as a good support material when functionalized to achieve adhesive properties and as a molecular paradigm for studying the adipocytic differentiation. We envisage a new role of SLNs towards regulating stem cell character by orchestrating the structural alignment during preparation of Solid lipid nanoparticles.
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Affiliation(s)
- S Chabra
- Centre for Stem Cell & Tissue Engineering, Panjab University, Departments of 3 Biochemistry & 5 Biotechnology , Panjab University
| | - M Ranjan
- Centre for Stem Cell & Tissue Engineering, Panjab University, Departments of 3 Biochemistry & 5 Biotechnology , Panjab University
| | - R Bhandari
- University Institute of Pharmaceutical Sciences (UIPS), Panjab University , Sector-14, Chandiagarh-160014, India
| | - T Kaur
- Departments of Biochemistry, Panjab University , Sector-14, Chandiagarh-160014, India
| | - M Aggrawal
- Departments of Biochemistry, Panjab University , Sector-14, Chandiagarh-160014, India
| | - V Puri
- Departments of Bioinformatics , DAVC Sector-10, Chandigarh, India
| | - N Mahajan
- Departments of Biochemistry, Panjab University , Sector-14, Chandiagarh-160014, India
| | - I P Kaur
- University Institute of Pharmaceutical Sciences (UIPS), Panjab University , Sector-14, Chandiagarh-160014, India
| | - S Puri
- Centre for Stem Cell & Tissue Engineering, Panjab University, Departments of 3 Biochemistry & 5 Biotechnology , Panjab University
| | - R C Sobti
- Departments of Biotechnology, Panjab University , Sector-14, Chandiagarh-160014, India
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Chabra S, Ranjan M, Bhandari R, Kaur T, Aggrawal M, Puri V, Mahajan N, Kaur IP, Puri S, Sobti RC. Solid Lipid Nanoparticles Regulate Functional Assortment of Mouse Mesenchymal Stem Cells. J Stem Cells Regen Med 2011. [PMID: 24693174 PMCID: PMC3908271 DOI: 10.46582/jsrm.0702012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
A rapid decline in self-renewability, viability and function, of isolated stem cells are major hurdles in developing cell based therapies. There has been an increasing interest towards identifying a support material for maintaining stem cell features of the isolated cells. Pioneering observations of the present paper, demonstrate functionally diverse potential of Solid Lipid Nanoparticles (SLNs) in deciding the fate & behavior of mouse mesenchymal stem cell. The evidences are provided to show the dual nature of the SLNs for being a scaffold for the stem cell attachment, to retain stemness, and as reagent for inducing stem cell differentiation. Scanning electron microscopic examinations together with expression analysis were used to conform to such observations. Results of the study thus suggest that Solid lipid nanoparticles can be used as a good support material when functionalized to achieve adhesive properties and as a molecular paradigm for studying the adipocytic differentiation. We envisage a new role of SLNs towards regulating stem cell character by orchestrating the structural alignment during preparation of Solid lipid nanoparticles
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Affiliation(s)
- S Chabra
- Centre for Stem Cell & Tissue Engineering, Panjab University, Departments of 3 Biochemistry & 5 Biotechnology , Panjab University
| | - M Ranjan
- Centre for Stem Cell & Tissue Engineering, Panjab University, Departments of 3 Biochemistry & 5 Biotechnology , Panjab University
| | - R Bhandari
- University Institute of Pharmaceutical Sciences (UIPS), Panjab University , Sector-14, Chandiagarh-160014, India
| | - T Kaur
- Departments of Biochemistry, Panjab University , Sector-14, Chandiagarh-160014, India
| | - M Aggrawal
- Departments of Biochemistry, Panjab University , Sector-14, Chandiagarh-160014, India
| | - V Puri
- Departments of Bioinformatics , DAVC Sector-10, Chandigarh, India
| | - N Mahajan
- Departments of Biochemistry, Panjab University , Sector-14, Chandiagarh-160014, India
| | - I P Kaur
- University Institute of Pharmaceutical Sciences (UIPS), Panjab University , Sector-14, Chandiagarh-160014, India
| | - S Puri
- Centre for Stem Cell & Tissue Engineering, Panjab University, Departments of 3 Biochemistry & 5 Biotechnology , Panjab University
| | - R C Sobti
- Departments of Biotechnology, Panjab University , Sector-14, Chandiagarh-160014, India
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Datta SR, McQuillin A, Rizig M, Blaveri E, Thirumalai S, Kalsi G, Lawrence J, Bass NJ, Puri V, Choudhury K, Pimm J, Crombie C, Fraser G, Walker N, Curtis D, Zvelebil M, Pereira A, Kandaswamy R, St Clair D, Gurling HMD. A threonine to isoleucine missense mutation in the pericentriolar material 1 gene is strongly associated with schizophrenia. Mol Psychiatry 2010; 15:615-28. [PMID: 19048012 DOI: 10.1038/mp.2008.128] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Markers at the pericentriolar material 1 gene (PCM1) have shown genetic association with schizophrenia in both a University College London (UCL) and a USA-based case-control sample. In this paper we report a statistically significant replication of the PCM1 association in a large Scottish case-control sample from Aberdeen. Resequencing of the genomic DNA from research volunteers who had inherited haplotypes associated with schizophrenia showed a threonine to isoleucine missense mutation in exon 24 which was likely to change the structure and function of PCM1 (rs370429). This mutation was found only as a heterozygote in 98 schizophrenic research subjects and controls out of 2246 case and control research subjects. Among the 98 carriers of rs370429, 67 were affected with schizophrenia. The same alleles and haplotypes were associated with schizophrenia in both the London and Aberdeen samples. Another potential aetiological base pair change in PCM1 was rs445422, which altered a splice site signal. A further mutation, rs208747, was shown by electrophoretic mobility shift assays to create or destroy a promoter transcription factor site. Five further non-synonymous changes in exons were also found. Genotyping of the new variants discovered in the UCL case-control sample strengthened the evidence for allelic and haplotypic association (P=0.02-0.0002). Given the number and identity of the haplotypes associated with schizophrenia, further aetiological base pair changes must exist within and around the PCM1 gene. PCM1 protein has been shown to interact directly with the disrupted-in-schizophrenia 1 (DISC1) protein, Bardet-Biedl syndrome 4, and Huntingtin-associated protein 1, and is important in neuronal cell growth. In a separate study we found that clozapine but not haloperidol downregulated PCM1 expression in the mouse brain. We hypothesize that mutant PCM1 may be responsible for causing a subtype of schizophrenia through abnormal cell division and abnormal regeneration in dividing cells in the central nervous system. This is supported by our previous finding of orbitofrontal volumetric deficits in PCM1-associated schizophrenia patients as opposed to temporal pole deficits in non-PCM1-associated schizophrenia patients. Caution needs to be exercised in interpreting the actual biological effects of the mutations we have found without further cell biology. However, the DNA changes we have found deserve widespread genotyping in multiple case-control populations.
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Affiliation(s)
- S R Datta
- Molecular Psychiatry Laboratory, Research Department of Mental Health Sciences, University College London Medical School, Windeyer Institute of Medical Sciences, London, UK
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Puri V, van Berkel V, Krupnick AS, Kreisel D. Delayed presentation of traumatic diaphragmatic hernia. Hernia 2010; 14:447-8. [PMID: 20431902 DOI: 10.1007/s10029-010-0662-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Accepted: 04/09/2010] [Indexed: 10/19/2022]
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McQuillin A, Bass NJ, Choudhury K, Puri V, Kosmin M, Lawrence J, Curtis D, Gurling HMD. Case-control studies show that a non-conservative amino-acid change from a glutamine to arginine in the P2RX7 purinergic receptor protein is associated with both bipolar- and unipolar-affective disorders. Mol Psychiatry 2009; 14:614-20. [PMID: 18268501 DOI: 10.1038/mp.2008.6] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Three linkage studies of bipolar disorder have implicated chromosome 12q24.3 with lod scores of over 3.0 and several other linkage studies have found lods between 2 and 3. Fine mapping within the original chromosomal linkage regions has identified several loci that show association with bipolar disorder. One of these is the P2RX7 gene encoding a central nervous system-expressed purinergic receptor. A non-synonymous single nucleotide polymorphism, rs2230912 (P2RX7-E13A, G allele) and a microsatellite marker NBG6 were both previously found to be associated with bipolar disorder (P=0.00071 and 0.008, respectively). rs2230912 has also been found to show association with unipolar depression. The effect of the polymorphism is non-conservative and results in a glutamine to arginine change (Gln460Arg), which is likely to affect P2RX7 dimerization and protein-protein interactions. We have confirmed the allelic associations between bipolar disorder and the markers rs2230912 (P2RX7-E13A, G allele, P=0.043) and NBG6 (P=0.010) in a London-based sample of 604 bipolar cases and 560 controls. When we combined these data with the published case-control studies of P2RX7 and mood disorder (3586 individuals) the association between rs2230912 (Gln460Arg) and affective disorders became more robust (P=0.002). The increase in Gln460Arg was confined to heterozygotes rather than homozygotes suggesting a dominant effect (odds ratio 1.302, CI=1.129-1.503). Although further research is needed to prove that the Gln460Arg change has an aetiological role, it is so far the most convincing mutation to have been found with a role for increasing susceptibility to bipolar and genetically related unipolar disorders.
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Affiliation(s)
- A McQuillin
- Molecular Psychiatry Laboratory, Department of Mental Health Sciences, Windeyer Institute of Medical Sciences, Royal Free and University College Medical School, University College London, London, UK
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Yadav JB, Jhadav S, Puri RK, Puri V. Properties of vacuum evaporated vapour chopped polyaniline thin film: effect of synthesis method. ACTA ACUST UNITED AC 2008. [DOI: 10.1088/1742-6596/114/1/012037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Puri V, Virbasius JV, Guilherme A, Czech MP. RNAi screens reveal novel metabolic regulators: RIP140, MAP4k4 and the lipid droplet associated fat specific protein (FSP) 27. Acta Physiol (Oxf) 2008; 192:103-15. [PMID: 18171433 DOI: 10.1111/j.1748-1716.2007.01786.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [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] [Indexed: 12/18/2022]
Abstract
Adipose tissue modulates whole body metabolism and insulin sensitivity by controlling circulating lipid levels and producing molecules that can regulate fatty acid metabolism in such tissues as muscle and liver. We have developed RNA interference (RNAi) screens to identify genes in cultured adipocytes that regulate insulin signalling and key metabolic pathways. These short interfering RNA (siRNA)-based screens identified the transcriptional corepressor receptor interacting protein 140 (RIP140) (J Clin Invest 116: 125, 2006) and the mitogen-activated protein kinase (MAP4k4) (Proc Natl Acad Sci USA 103: 2087, 2006) as negative regulators of insulin-responsive hexose uptake and oxidative metabolism. Gene expression profiling revealed that RIP140 depletion upregulates the expression of clusters of genes in the pathways of glucose uptake, glycolysis, tricarboxylic acid cycle, fatty acid oxidation, mitochondrial biogenesis and oxidative phosphorylation. RIP140-null mice resist weight gain on a high-fat diet and display enhanced glucose tolerance. MAP4k4 depletion in adipocytes increases many of the RIP140-sensitive genes, increases adipogenesis and mediates some actions of tumour necrosis factor-alpha (TNF-alpha). Remarkably, another hit in our RNAi screens was fat specific protein 27 (FSP27), a highly expressed isoform of Cidea. We discovered that FSP27 unexpectedly associates specifically with lipid droplets and regulates fat storage. We conclude that RIP140, MAP4k4 and the novel lipid droplet protein FSP27 are powerful regulators of adipose tissue metabolism and are potential therapeutic targets for controlling metabolic disease. The discovery of these novel proteins validates the power of RNAi screening for discovery of new therapeutic approaches to type 2 diabetes and obesity.
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Affiliation(s)
- V Puri
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01605, USA
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Pallati PK, Puri V, Mittal SK. Gastric outlet obstruction secondary to Morgagni hernia: a case report. Hernia 2007; 12:209-12. [DOI: 10.1007/s10029-007-0287-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2007] [Accepted: 09/07/2007] [Indexed: 10/22/2022]
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Sharma P, Sharma BC, Puri V, Sarin SK. Critical flicker frequency: diagnostic tool for minimal hepatic encephalopathy. J Hepatol 2007; 47:67-73. [PMID: 17459511 DOI: 10.1016/j.jhep.2007.02.022] [Citation(s) in RCA: 133] [Impact Index Per Article: 7.8] [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] [Received: 09/12/2006] [Revised: 01/18/2007] [Accepted: 02/20/2007] [Indexed: 01/18/2023]
Abstract
BACKGROUND/AIMS Minimal hepatic encephalopathy (MHE) is associated with poorer quality of life and increased work disability. Diagnosis requires cumbersome psychometric and neurophysiological tests. We evaluated critical flicker frequency (CFF) to diagnose MHE. METHODS 156 cirrhotic patients (age 41+/-12.5 yr) without overt encephalopathy (Child A 63, Child B 56, Child C 37) were evaluated by psychometric (number connection tests A, B or figure connection tests A, B), P300 auditory event related potential (ERP) and CFF. MHE was diagnosed by abnormal psychometric and/or P300 auditory event related potential. RESULTS Prevalence of MHE was 53% with 27 (43%) in Child's A, 33 (59%) in Child's B and 23 (62%) in Child's C cirrhosis (p=NS). Of 83 patients, 72 (87%) had abnormal psychometry, 64 (77%) had abnormal P300 auditory event related potential (ERP) (380.6+/-28.8 ms) and in 66 (80%) CFF was below 39 Hz. 60 (83%) patients with abnormal psychometry and 51 (80%) with abnormal P300 auditory event related potential had CFF below 39 Hz. CFF sensitivity (96%), specificity (77%) and positive predictive value (68%), negative predictive value (98%) and diagnosis accuracy was 83.3% when compared to patients with both abnormal psychometry and P300ERP. CONCLUSIONS Critical flicker frequency is a simple, reliable and accurate test without any age or literacy dependence for the diagnosis of MHE.
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Affiliation(s)
- P Sharma
- Department of Gastroenterology, Room 203, Academic Block, G.B. Pant Hospital, New Delhi 110002, India
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Puri V, Chaudhry N, Tatke M. N-hexane neuropathy in screen printers. Electromyogr Clin Neurophysiol 2007; 47:145-52. [PMID: 17557647] [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] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
BACKGROUND To study the clinical and electrophysiological profile of n-hexane neuropathy in a tertiary care center of India. METHODS Twenty five screen printers from five different factories, with peripheral neuropathy were included in the study. A detailed general physical, systemic and neurological examination was conducted Visual acuity, color vision and field charting was done in all the subjects. All patients were subjected to Folstein mini mental scale examination. Electrophysiological evaluation included motor and sensory conduction studies of the conventionally studied nerves of upper and lower limbs, Needle EMG of various distal and proximal muscles and patterned visual evoked responses. The electrophysiological profile was repeated every three months till one year. Sural nerve biopsy was studied in six patients. The patients were followed for a maximum of 4 years. RESULTS Twenty three [92%] patients had sensory- motor neuropathy, while pure sensory neuropathy was seen in two. The sensory conductions were affected almost equally in upper as well as the lower limbs, while the motor conductions were affected more in the lower limbs than the upper limbs. The sensory conductions were not recordable in both the upper and the lower limbs in 18 [72%] patients. Motor conduction studies revealed an asymmetric and patchy involvement. Proximal conduction block was seen in 3 patients [12%]. On needle EMG features of denervation were seen in all patients. P100 latency was normal in all. Sural nerve biopsy showed a selective decrease in large myelinated axons with demyelination. Axonal swelling with focal areas of demyelination was observed in two patients. CONCLUSIONS The electrophysiological patterns as well as the histopathology reflect the pathophysiology of n-hexane neuropathy.
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Affiliation(s)
- V Puri
- Department of Neurology, G.B. Pant Hospital, New Delhi 110002, India.
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Puri V, Bertellotti RP, Garg N, Fitzgibbons RJ. Intramesosigmoid hernia: a rare type of congenital internal hernia. Hernia 2007; 11:463-5. [PMID: 17390198 DOI: 10.1007/s10029-007-0219-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [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: 12/22/2006] [Accepted: 03/05/2007] [Indexed: 11/29/2022]
Abstract
Intestinal obstruction from congenital internal hernias is a rare and often unsuspected problem. We report the case of a 66-year-old male with a rare type of congenital internal hernia causing bowel obstruction. He underwent successful laparoscopy-assisted surgical repair without bowel resection. Symptomatic congenital internal hernias usually present with intermittent or acute small-bowel obstruction without any history of previous abdominal surgery. Laparoscopy or hand-assisted laparoscopy can be useful tools for locating the region of pathology and enable minimally invasive surgical treatment.
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Affiliation(s)
- V Puri
- Department of Surgery, Creighton University Medical Center, 601 N, 30th Street, Omaha, NE 68131, USA.
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Sudan R, Puri V, Sudan D. Robotically assisted biliary pancreatic diversion with a duodenal switch: a new technique. Surg Endosc 2007; 21:729-33. [PMID: 17308948 DOI: 10.1007/s00464-006-9171-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [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: 10/03/2006] [Revised: 10/03/2006] [Accepted: 10/16/2006] [Indexed: 10/23/2022]
Abstract
BACKGROUND Minimally invasive surgical techniques decrease the length of hospitalization and the morbidity for general surgery procedures. Application of minimally invasive techniques to obesity surgery had previously been limited to stapled techniques used primarily for the Roux-en-Y gastric bypass and laparoscopic band placement. The authors present the technique for totally intracorporeal robotically assisted biliary pancreatic diversion with a duodenal switch (BPD/DS) using five ports. METHODS After development of the technique in animal and human cadaver models, the da Vinci robot was first used in October 2000 to perform BPD/DS using five ports and a totally intracorporeal technique. Patient selection was based on standard surgery guidelines for the morbidly obese. RESULTS This technique was applied for 47 patients with a mean body mass index (BMI) of 45 kg/m2 and a mean age of 38 +/- 10 years. The median operating time was 514 min (range, 370-931 min). The median operative time for the last 10 patients was 379 min (range, 370-582 min). Three patients underwent conversion to open surgery, and four patients experienced postoperative leaks with no mortality. CONCLUSION The safety, feasibility, and reproducibility of a minimally invasive robotic surgical approach to complex abdominal operations such as BPD/DS is demonstrated. The BPD/DS allows for a sutured bowel anastomosis similar to the open technique using a minimal number of small access ports.
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Affiliation(s)
- R Sudan
- Department of Surgery, Creighton University Medical Center, 601 N, 30th Street, Omaha, NE 68131, USA.
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Puri V, Felix E, Fitzgibbons RJ. Laparoscopic vs conventional tension free inguinal herniorrhaphy: 2005 Society of American Gastrointestinal Endoscopic Surgeons (SAGES) annual meeting debate. Surg Endosc 2006; 20:1809-16. [PMID: 17024526 DOI: 10.1007/s00464-006-0073-9] [Citation(s) in RCA: 3] [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: 01/31/2006] [Accepted: 04/03/2006] [Indexed: 11/29/2022]
Abstract
This report summarizes the 2005 Society of American Gastrointestinal and Endoscopic Surgeons' inguinal herniorrhaphy debate. Most inguinal herniorrhaphies in the United States are performed using one of several prosthesis-based, tension-free (TFR) procedures. Approximately 15% of the procedures used are laparoscopic inguinal herniorrhaphies (LIH). Technical ease, lower cost, and local anesthesia are the major advantages attributed to TFR, whereas superior cosmesis, less perioperative pain, and a faster return to normal activity is attributed to LIH. The overall cost-benefit ratio, incidence of chronic pain syndromes, and relevance of a recent major trial could not be entirely settled in this debate. The importance of adequate training for surgeons undertaking LIH cannot be overemphasized. Experienced surgeons displaying equivalent results for LIH and TFR are justified in offering LIH to patients with primary unilateral inguinal hernias.
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Affiliation(s)
- V Puri
- Department of Surgery, Creighton University Medical Center, 601 North 30th Street, Suite 3700, Omaha, Nebraska 68131, USA
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Puri V, Puri S, Svojanovsky SR, Mathur S, Macgregor RR, Klein RM, Welch KMA, Berman NEJ. Effects of oestrogen on trigeminal ganglia in culture: implications for hormonal effects on migraine. Cephalalgia 2006; 26:33-42. [PMID: 16396664 DOI: 10.1111/j.1468-2982.2005.00987.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [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] [Indexed: 01/07/2023]
Abstract
Although migraine is more common in women than men and often linked to the menstrual cycle, few studies have investigated the biological basis of hormonal influences on the trigeminovascular system. In the present study we investigated the effect of physiological levels (10(-9) m) oestrogen on female rat trigeminal ganglia in vitro. Immunocytochemical analysis demonstrated the presence of oestrogen receptor-alpha in a predominantly cytoplasmic location and in neurites. Microarray analysis demonstrated that oestrogen treatment regulates several genes with potential relevance to menstrual migraine. The genes that were upregulated included synapsin-2, endothelin receptor type B, activity and neurotransmitter-induced early gene 7 (ania-7), phosphoserine aminotransferase, MHC-1b, and ERK-1. Down-regulated genes included IL-R1, bradykinin B2 receptor, N-tropomodulin, CCL20, GABA transporter protein, fetal intestinal lactase-phlorizin hydrolase, carcinoembryonic antigen-related protein, zinc finger protein 36, epsin 1 and cysteine string protein. Protein activity assays demonstrated that exposure of the cultured neurons to oestrogen leads to activation of ERK, which has been linked to inflammatory pain. Immunocytochemistry demonstrated that activated ERK was present in neurons containing peripherin, a marker of nociceptive neurons. Several of the genes in the present study may provide potential targets for understanding the association of oestrogen with migraine and other hormone-related orofacial pain.
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Affiliation(s)
- V Puri
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
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Puri V, Chaudhry N, Satyawani M. Down beat nystagmus in vitamin B 12 deficiency syndrome. Electromyogr Clin Neurophysiol 2006; 46:101-4. [PMID: 16795999] [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] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
A 34 years old male, presenting with progressive proximal weakness, with a neurogenic pattern on needle EMG, and a family history suggestive of an autosomal recessive disorder, was found to have additional features of myeloneuropathy and a down beat nystagmus. A low serum vitamin B12 level was found, and on vitamin B12 supplementation there was a partial clinical as well as electrophysiological recovery.
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Affiliation(s)
- V Puri
- Department of Neurology, G.B. Pant Hospital, New Delhi 110 002, India.
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