1. Critical evaluation of two models of flow cytometers for the assessment of sperm DNA fragmentation: An appeal for performance verification
Asian Journal of Andrology 2019;21(5):438-444
Lack of standardized, reproducible protocols and reference values is among the challenges faced when using new or upgraded versions of instruments in reproductive laboratories and flow cytometry. Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay combined with flow cytometry routinely used for diagnostic measurement of sperm DNA fragmentation (SDF) is a unique example. Any change in the setting of the standard instrument, including upgrades of hardware or software, can lead to different results and may affect clinicians' decision for treatment. Therefore, we compared TUNEL results of SDF obtained from a standard (C6) flow cytometer with a newer version of the same instrument (C6 Plus) and examined the cutoff, sensitivity, and specificity without calibration (adjustment) and after adjustment. Identical sperm preparation and matched acquisition settings were used to examine the performance of two flow cytometers. The strength of agreement of the results between the two observers was also assessed. After adjustment of the settings, overall concordance became high and the two cytometers showed 100% positive and negative predictive value with 100% area under the curve. The overall correlation coefficient observed between C6 and C6 Plus was highly significant (P 0.0001; r = 0.992; 95% confidence interval [CI]: 0.982-0.997). After adjustment, the two cytometers showed very high precision of 98% and accuracy of 99%. The interobserver agreement on C6 flow cytometer for the two observers was 0.801 0.062 and 0.746 0.044 for C6 Plus. We demonstrated a strong agreement between the samples tested on the two flow cytometers after calibration and established the robustness of both instruments.
2.Carpal Bone Fractures in Distal Radial Fractures: Is Computed Tomography Expedient?.
Paritosh GOGNA ; Rohit SINGLA ; Rakesh Kumar GUPTA
Clinics in Orthopedic Surgery 2014;6(1):101-102
No abstract available.
Carpal Bones/*injuries
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Female
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Fractures, Bone/*complications
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Hand Injuries/*complications
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Humans
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Male
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Radius Fractures/*complications
3.Bilateral traumatic patellar fracture: a case report and review of literature.
Gupta VINAY ; Kundu ZILE ; Garg RAKESH ; Sanjay GAURAV
Chinese Journal of Traumatology 2012;15(3):188-191
Simultaneous isolated bilateral patellar fractures are very rare injuries and most often associated with systemic disorders such as hyperparathyroidism, osteoporosis, stress fracture and kidney failure. Isolated bilateral traumatic fracture of patella following an unusual mode of injury is seldomly reported in the literature. We reported such a case following a road traffic accident without any associated injuries or co-morbid condition. The patella on the right side had transverse open fracture which was fixed with two Kirschner wires following tension band principle, and that on the left side sustained upper pole comminution which was treated by partial patellectomy. The patient achieved good outcome: at 6 months he was able to squat and sit cross legged; at one year he obtained nearly normal muscle strength and full range of motion. We discussed the injury mechanism, management and rehabilitation in such a case and reviewed the available literature regarding such a presentation.
Bone Wires
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Fracture Fixation, Internal
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Fractures, Bone
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Fractures, Comminuted
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Humans
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Knee Injuries
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Patella
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injuries
4.Scrutiny of COVID-19 response strategies among severely affected European nations
Shine STEPHEN ; Alwin ISSAC ; Rakesh Vadakkethil RADHAKRISHNAN ; Jaison JACOB ; VR VIJAY ; Sam JOSE ; SM AZHAR ; Anoop S. NAIR ; Nadiya KRISHNAN ; Rakesh SHARMA ; Manju DHANDAPANI
Osong Public Health and Research Perspectives 2021;12(4):203-214
Although the health care systems in Europe are considered the global benchmark, European nations were severely affected by the coronavirus disease 2019 (COVID-19) pandemic. This manuscript aimed to examine the strategies implemented to combat the COVID-19 pandemic by France, the United Kingdom, Spain, Italy, Germany, and Russia and their outcomes in terms of the number of cases, testing, and deaths. This is the first review of its kind that extensively analyzes the preparedness, mitigation, and response strategies against the COVID-19 pandemic adopted by these nations. This paper further suggests a strategic preparedness model for future pandemics. From the analysis, we found that a decentralized approach, prompt decision-making and timely execution, coordination between local health authorities, and public participation in the implementation of strategies could substantially reduce the case fatality rate. Nations with a high percentage of gross domestic product invested in the health sector, as well as more nurses, physicians, hospital beds, intensive care unit beds, and ventilators, better managed the pandemic. Instead, nations that postponed their pandemic response by delaying tracking, tracing, testing, quarantine, and lockdown were badly affected. The lessons learned from the present pandemic could be used as a guide to prepare for further pandemics.
5.Scrutiny of COVID-19 response strategies among severely affected European nations
Shine STEPHEN ; Alwin ISSAC ; Rakesh Vadakkethil RADHAKRISHNAN ; Jaison JACOB ; VR VIJAY ; Sam JOSE ; SM AZHAR ; Anoop S. NAIR ; Nadiya KRISHNAN ; Rakesh SHARMA ; Manju DHANDAPANI
Osong Public Health and Research Perspectives 2021;12(4):203-214
Although the health care systems in Europe are considered the global benchmark, European nations were severely affected by the coronavirus disease 2019 (COVID-19) pandemic. This manuscript aimed to examine the strategies implemented to combat the COVID-19 pandemic by France, the United Kingdom, Spain, Italy, Germany, and Russia and their outcomes in terms of the number of cases, testing, and deaths. This is the first review of its kind that extensively analyzes the preparedness, mitigation, and response strategies against the COVID-19 pandemic adopted by these nations. This paper further suggests a strategic preparedness model for future pandemics. From the analysis, we found that a decentralized approach, prompt decision-making and timely execution, coordination between local health authorities, and public participation in the implementation of strategies could substantially reduce the case fatality rate. Nations with a high percentage of gross domestic product invested in the health sector, as well as more nurses, physicians, hospital beds, intensive care unit beds, and ventilators, better managed the pandemic. Instead, nations that postponed their pandemic response by delaying tracking, tracing, testing, quarantine, and lockdown were badly affected. The lessons learned from the present pandemic could be used as a guide to prepare for further pandemics.
6.Von Hippel-Lindau Syndrome: Demonstration of Entire Disease Spectrum with 68Ga-DOTANOC PET-CT.
Punit SHARMA ; Varun Singh DHULL ; Chandrasekhar BAL ; Arun MALHOTRA ; Rakesh KUMAR
Korean Journal of Radiology 2014;15(1):169-172
Von Hippel-Lindau (VHL) syndrome is a rare neoplastic disorder characterized by central nervous system (CNS) and visceral tumors. We here present 68Ga-labelled [1, 4, 7, 10-tetraazacyclododecane-1, 4, 7, 10-tetraacetic acid]-1-Nal3-Octreotide positron emission tomography computed tomography findings in a 52 year old female with VHL syndrome, demonstrating both CNS and visceral tumors.
Brain Diseases/radionuclide imaging
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Female
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Humans
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Kidney Diseases/radionuclide imaging
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Liver Diseases/radionuclide imaging
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Middle Aged
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Multimodal Imaging/*methods
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Organometallic Compounds/diagnostic use
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Pancreatic Diseases/radionuclide imaging
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Positron-Emission Tomography/*methods
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Tomography, X-Ray Computed/*methods
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von Hippel-Lindau Disease/*radionuclide imaging
7.Treatment failure with disease-modifying antirheumatic drugs in rheumatoid arthritis patients.
Niti MITTAL ; Rakesh MITTAL ; Aman SHARMA ; Vinu JOSE ; Ajay WANCHU ; Surjit SINGH
Singapore medical journal 2012;53(8):532-536
INTRODUCTIONRheumatoid arthritis (RA) patients taking disease-modifying antirheumatic drugs (DMARDs) may experience treatment failure due to adverse effects or a lack of efficacy/resistance. The purpose of this study was to evaluate the prescription patterns, the incidence and reasons for failure, and the time to treatment failure of DMARDs in RA patients.
METHODSThe medical records of patients visiting the Rheumatology Clinic were scrutinised retrospectively in order to extract the relevant data, including demographics, clinical and laboratory investigations and drug usage, for analysis.
RESULTSMore than 60% of the 474 eligible patients were started on a combination of DMARDs. Hydroxychloroquine (HCQ) (79.7%) and methotrexate (MTX) (55.6%) were the most common DMARDs prescribed initially. There was a significant difference in survival times among the various treatment groups (p ≤ 0.001). Adverse effect was the main reason for treatment failure of sulfasalazine (SSZ) (88.9%) and MTX (75%), while addition or substitution DMARDs was more common for those taking HCQ (72.2%). Adverse event was reported as the most significant predictor of treatment failure. The most commonly reported adverse effects were bone marrow suppression and hepatotoxicity.
CONCLUSIONA combination of DMARDs was used to initiate therapy in more than 60% of RA patients, with HCQ and MTX being prescribed most frequently. Adverse effects accounted mainly for treatment failures with MTX and SSZ, while lack of efficacy was responsible for major treatment failures with HCQ.
Adult ; Antirheumatic Agents ; adverse effects ; therapeutic use ; Arthritis, Rheumatoid ; drug therapy ; Drug Therapy, Combination ; Female ; Humans ; Kaplan-Meier Estimate ; Male ; Middle Aged ; Retrospective Studies ; Treatment Failure
8.Locking plates in distal humerus fractures: study of 43 patients.
Rakesh Kumar GUPTA ; Vinay GUPTA ; Dickey Richard MARAK
Chinese Journal of Traumatology 2013;16(4):207-211
OBJECTIVEThe treatment of multi-fragmentary, intraarticular fractures of the distal humerus is difficult, even in young patients with bone of good quality. Small distal fragment, diminished bone mineral quality and increased trauma-associated joint destruction make stable joint reconstruction more problematic. The anatomically preshaped locking plates allow angular stable fixation for these complex fractures. We evaluated functional results of patients treated with open reduction and internal fixation with distal humerus locking plates for complex distal humerus fractures.
METHODSForty-three consecutive patients with articular fractures of the distal humerus were treated by open reduction and internal fixation with AO distal humerus plate system and locking reconstruction plates. Forty patients were available for the final outcome analysis. According to AO/ASIF classification, there were 2 cases of type A2, 4 cases of type A3, 1 case of type B1, 1 case of type B2, 14 cases of type C1, 7 cases of type C2 and 11 cases of type C3. Open reduction with triceps splitting technique was used in all patients. The clinical and radiographic follow-up was performed and outcome measures included pain assessment, range of motion, and Mayo elbow performance score.
RESULTSForty patients were available for the final outcome analysis. There were 29 males and 11 females with an average age of 38.4 years (18-73 years). Clinical and radiological consolidation of the fracture was observed in all cases at an average of 11.6 weeks (9-14 weeks). The average follow-up was 12 months (10-18 months). Using the Mayo elbow performance score the results obtained were graded as excellent or good results in 33 patients (82.5%). One patient had superficial infection, and 4 had myositis ossificans. There were no cases of primary malposition or secondary displacement, implant failure or ulnar neuropathy.
CONCLUSIONAnatomically preshaped distal humerus locking plate system is useful in providing stable fixation for complex distal articular fracture and facilitating early postoperative rehabilitation. The low rate of implant failure in the present study indicates that the technique is promising and warrants further investigation.
Adolescent ; Adult ; Aged ; Bone Plates ; Female ; Fracture Fixation, Internal ; methods ; Humans ; Humeral Fractures ; surgery ; Male ; Middle Aged ; Postoperative Complications ; Treatment Outcome
9.New Insights on the Mechanisms Affecting Fertility in Men with Non-Seminoma Testicular Cancer before Cancer Therapy
Tania R DIAS ; Ashok AGARWAL ; Peter N PUSHPARAJ ; Gulfam AHMAD ; Rakesh SHARMA
The World Journal of Men's Health 2020;38(2):198-207
PURPOSE: Patients with non-seminoma testicular cancer (NSTC) cancer can be subfertile or infertile, and present reduced sperm quality, but the underlying mechanisms are unknown. The aim of this study was to compare the sperm proteome of patients with NSTC, who cryopreserved their sperm before starting cancer treatment, with that from healthy fertile men.MATERIALS AND METHODS: Semen volume, sperm motility and sperm concentration were evaluated before the cryopreservation of samples from patients with NSTC (n=15) and the control group (n=15). Sperm proteomic analysis was performed by liquid chromatography-tandem mass spectrometry and the differentially expressed proteins (DEPs) between the two groups were identified using bioinformatic tools.RESULTS: A total of 189 DEPs was identified in the dataset, from which five DEPs related to sperm function and fertilization were selected for validation by Western blot. We were able to validate the underexpression of the mitochondrial complex subunits NADH:Ubiquinone Oxidoreductase Core Subunit S1 (NDUFS1) and ubiquinol-cytochrome C reductase core protein 2 (UQCRC2), as well as the underexpression of the testis-specific sodium/potassium-transporting ATPase subunit alpha-4 (ATP1A4) in the NSTC group.CONCLUSIONS: Our results indicate that sperm mitochondrial dysfunction may explain the observed decrease in sperm concentration, total sperm count and total motile count in NSTC patients. The identified DEPs may serve as potential biomarkers for the pathophysiology of subfertility/infertility in patients with NSTC. Our study also associates the reduced fertilizing ability of NSTC patients with the dysregulation of important sperm molecular mechanisms.
10.Total marrow and lymphoid irradiation with helical tomotherapy: a practical implementation report
Srinivas CHILUKURI ; Sham SUNDAR ; Rajesh THIYAGARAJAN ; Jose EASOW ; Mayur SAWANT ; Ganapathy KRISHANAN ; Pankaj Kumar PANDA ; Dayananda SHARMA ; Rakesh JALALI
Radiation Oncology Journal 2020;38(3):207-216
Objective:
To standardize the technique; evaluate resources requirements and analyze our early experience of total marrow and lymphoid irradiation (TMLI) as part of the conditioning regimen before allogenic bone marrow transplantation using helical tomotherapy.
Methods:
Computed tomography (CT) scanning and treatment were performed in head first supine (HFS) and feet first supine (FFS) orientations with an overlap at mid-thigh. Patients along with the immobilization device were manually rotated by 180° to change the orientation after the delivery of HFS plan. The dose at the junction was contributed by a complementary dose gradient from each of the plans. Plan was to deliver 95% of 12 Gy to 98% of clinical target volume with dose heterogeneity <10% and pre-specified organs-at-risk dose constraints. Megavoltage-CT was used for position verification before each fraction. Patient specific quality assurance and in vivo film dosimetry to verify junction dose were performed in all patients.
Results:
Treatment was delivered in two daily fractions of 2 Gy each for 3 days with at least 8-hour gap between each fraction. The target coverage goals were met in all the patients. The average person-hours per patient were 16.5, 21.5, and 25.75 for radiation oncologist, radiation therapist, and medical physicist, respectively. Average in-room time per patient was 9.25 hours with an average beam-on time of 3.32 hours for all the 6 fractions.
Conclusion
This report comprehensively describes technique and resource requirements for TMLI and would serve as a practical guide for departments keen to start this service. Despite being time and labor intensive, it can be implemented safely and robustly.