1.Oral Implant Imaging: A Review
Sarika Gupta ; Neelkant Patil ; Jitender Solanki ; Ravinder Singh ; Sanjeev Laller
Malaysian Journal of Medical Sciences 2015;22(3):7-17
Selecting an appropriate implant imaging technique has become a challenging task since the advent of advanced imaging modalities, and many of these are used for implant imaging. On imaging, the modality should not only consider the anatomy but should also provide dimensional accuracy. Many dentists use the conventional method, mostly orthopantograph (OPG), in their routine practice of implant placement. However, because of the drawbacks associated with OPG, higher technologies, such as computed tomography (CT) and cone beam computed tomography (CBCT), are better accepted. These help improve image sharpness and reduce distortion. These techniques are not used widely due to the cost effect. Therefore, to decide on the type of imaging technique, all associated advantages and disadvantages should be considered, which will be broadly discussed in this review.
2.Re-Engineering the liver with natural biomaterials.
Sanjeev GUPTA ; Harmeet MALHI ; Giridhar R GORLA
Yonsei Medical Journal 2000;41(6):814-824
The extensive regenerative capacity of hepatocytes and the key roles of the liver in metabolic processes have generated interest in the liver as an appropriate target for cell and gene therapy. If cells were considered as natural biomaterials, then liver cell transplantation would fall within the general field of bioengineering. While unmodified hepatocytes engraft in the liver and ectopic sites, biological modifications and optimization of bioengineered systems would facilitate engraftment and survival of transplanted cells, especially in ectopic locations. Acute liver failure, chronic liver disease and metabolic deficiency states are among the conditions that can potentially be treated by cell transplantation. In acute liver failure, cell transplantation into the liver, along with the creation of an extrahepatic reservoir of cells might be required because engraftment and proliferation of transplanted cells in the liver needs time. In other situations, gradual liver repopulation alone might well be effective without additional manipulations.
Animal
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Biocompatible Materials*
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Biomedical Engineering*
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Hepatocytes/transplantation*
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Human
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Liver*
3.Double blind randomized control trial to evaluate the efficacy of ketoprofen patch to attenuate pain during venous cannulation
Sanjay KUMAR ; Omprakash SANJEEV ; Anil AGARWAL ; Chetna SHAMSHERY ; Rakhi GUPTA
The Korean Journal of Pain 2018;31(1):39-42
BACKGROUND: Venipuncture pain is an uncomfortable suffering to the patient. It creates anxiety, fear and dissatisfaction. The ketoprofen transdermal patch is a proven treatment for musculoskeletal and arthritic pain. We planned this study to evaluate the efficacy of the ketoprofen patch to reduce venipuncture pain. METHODS: Two hundred adult patients, aged 18–60 years, of either sex, ASA grade I or II, were enrolled. Presuming that therapy would decrease venipuncture pain by 30%, a power calculation with α = 0.05 and β = 0.80 required enrollment of at least 24 patients into each group. However, 100 patients in each group were recruited. Group I (Control) received a placebo patch; Group II (Ketoprofen) received a 20 mg ketoprofen patch. A selected vein on the dorsum of the patient's non-dominant hand was cannulated with 18 g intravenous cannula 1 h after the application of the respective patch. Assessment of pain was done by a 10 cm visual analogue scale (VAS) of 0–10, where 0 depicts “no pain” and 10 is “the worst imaginable pain”. The venipuncture site was assessed for the presence of skin erythema, swelling and rashes at 12 h, 24 h and at the time of decannulation. RESULTS: Incidence of pain was 100% (94/94) in the control group as compared to 93% (85/91) in the ketoprofen group. The severity of the venipuncture pain was 6 (2) and 2 (2) for control and ketoprofen groups respectively (P < 0.05). CONCLUSIONS: Application of a ketoprofen patch at the proposed site of venipuncture one hour before the attempt is effective and safe for attenuating venipuncture pain.
Adult
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Anxiety
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Catheterization
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Catheters
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Erythema
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Exanthema
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Hand
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Humans
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Incidence
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Ketoprofen
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Phlebotomy
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Skin
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Transdermal Patch
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Veins
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Visual Analog Scale
4.Aedes aegypti container preference for oviposition and its possible implications for dengue vector surveillance in Delhi, India
Pooja PRASAD ; Suman LATA ; Sanjeev Kumar GUPTA ; Pawan KUMAR ; Rekha SAXENA ; Deepak Kumar ARYA ; Himmat SINGH
Epidemiology and Health 2023;45(1):e2023073-
OBJECTIVES:
Dengue is a mosquito-borne viral disease globally transmitted by Aedes aegypti. The most effective method to prevent the transmission of the disease is proficient vector control. Understanding the breeding behaviour of the responsible vectors is very pertinent in this regard; therefore, the present study was conducted to understand Ae. aegypti behaviour regarding the selection of containers for oviposition in the megacity of Delhi.
METHODS:
A household survey in different localities within Delhi was carried out during 2018-2019. All available containers were inspected for the presence of immature Ae. aegypti. In entomological surveillance, the ovipositional preference of Aedes was computed using the breeding preference ratio, container index in the field, and laboratory settings, and associations of dengue cases with monthly variation in environmental factors and container type were also calculated.
RESULTS:
The household larval survey in 40 localities showed that 40% of 27,776 water-holding containers in 3,400 houses were plastic, followed by overhead tanks (26.2%), and coolers (12.1%). The most preferred breeding habitat was clay pots (9.3%), followed by metallic containers (8.5%) and solid waste (7.1%). A laboratory-based study showed that Aedes preferred clay containers (81.8%) over 4 other types of containers (plastic, paper, metal, and glass).
CONCLUSIONS
The present study provides a rationale for using clay containers as a possible surveillance tool (ovitraps) or as a vector control tool. This information might aid researchers in developing novel traps and targeting preferred containers for larval control activities during transmission and non-transmission seasons.
5.An Insight of Nanomaterials in Tissue Engineering from Fabrication to Applications
Ritika SHARMA ; Sanjeev KUMAR ; Bhawna ; Akanksha GUPTA ; Neelu DHEER ; Pallavi JAIN ; Prashant SINGH ; Vinod KUMAR
Tissue Engineering and Regenerative Medicine 2022;19(5):927-960
Tissue engineering is a research domain that deals with the growth of various kinds of tissues with the help of synthetic composites. With the culmination of nanotechnology and bioengineering, tissue engineering has emerged as an exciting domain. Recent literature describes its various applications in biomedical and biological sciences, such as facilitating the growth of tissue and organs, gene delivery, biosensor-based detection, etc. It deals with the development of biomimetics to repair, restore, maintain and amplify or strengthen several biological functions at the level of tissue and organs. Herein, the synthesis of nanocomposites based on polymers, along with their classification as conductive hydrogels and bioscaffolds, is comprehensively discussed. Furthermore, their implementation in numerous tissue engineering and regenerative medicine applications is also described. The limitations of tissue engineering are also discussed here. The present review highlights and summarizes the latest progress in the tissue engineering domain directed at functionalized nanomaterials.
6.Neurological Recovery Pattern in Cervical Spondylotic Myelopathy after Anterior Surgery: A Prospective Study with Literature Review
Naveen PANDITA ; Sanjeev GUPTA ; Prince RAINA ; Abhishek SRIVASTAVA ; Aamir Yaqoob HAKAK ; Omeshwar SINGH ; Mohd Azhar ud din DAROKHAN ; Mohd Farooq BUTT
Asian Spine Journal 2019;13(3):423-431
STUDY DESIGN: Prospective clinical study. PURPOSE: The present study aimed to examine the neurological recovery pattern in cervical spondylotic myelopathy (CSM) after anterior cervical decompression and compare it with the existing reports in the literature. OVERVIEW OF LITERATURE: Neurological recovery and regression of myelopathy symptoms is an important factor that determines the outcomes of surgical decompression. The present findings contribute to the literature on the pattern of neurological recovery and patient prognosis with respect to the resolution of myelopathy symptoms after surgery. METHODS: This prospective study was conducted in Government Medical College in Jammu, North India between November 2012 and October 2014, a total of 30 consecutive patients with CSM were included and treated with anterior decompression and stabilization. They were prospectively followed up for 1 year and were evaluated for their neurological recovery pattern. The postoperative outcome was evaluated using the modified Japanese Orthopaedic Association (mJOA) score. The recovery rate was calculated using Hirabayashi's method. The JOA score was assessed before the operation and postoperatively at 1 week, 2 weeks, 1 month, 3 months, 4 months, 6 months, and 1 year. RESULTS: The postoperative mJOA score was 0 in the 1st month, 12.90±3.57 in the 3rd month, 13.50±3.55 in the 4th month, 14.63±3.62 in the 6th month, and 14.9±3.24 at the final follow-up of 1 year. The average recovery rate during the 1st month follow-up was 0%, and that during the 3rd month follow-up was 12.91% with a range of 0%–50%. The average recovery rate during the 4th month was 32.5%, with a range of 0%–60%, while that during the 6th month was 72.83%, with a range of 0%–100%. The average recovery rate during the final follow-up of 1 year was 54.3%. CONCLUSIONS: Neurological recovery after surgical decompression starts from the 3rd postoperative month and progresses until the 6th postoperative month; thereafter, it gradually plateaus over the subsequent 6 months until it steadies. Symptom duration is an important factor that requires consideration while determining postoperative neurological recovery.
Asian Continental Ancestry Group
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Clinical Study
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Decompression
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Decompression, Surgical
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Follow-Up Studies
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Humans
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India
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Methods
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Prognosis
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Prospective Studies
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Spinal Cord Diseases