Catalogue Search | MBRL
Are you sure you want to remove the book from the shelf?
{{itemTitle}}
1,075
result(s) for
"Mahapatra, K"
Sort by:
Anterior chamber intraocular lens - An effective alternative in traumatic and surgical aphakia in the era of scleral-fixated intraocular lens
Purpose:
To evaluate outcomes of anterior chamber intraocular lens (ACIOL) implantation with vitrectomy in eyes with surgical or traumatic aphakia, and subluxated or dislocated lens.
Methods:
In this retrospective study, we evaluated patients who underwent pars plans vitrectomy with ACIOL implantation from April 2016 to March 2019. Patients with minimum follow-up period of 1 year and operated by single surgeon were included. Ophthalmic history, indication for surgery, BCVA, IOP, slit-lamp examination, and fundus assessment findings were noted. Postoperatively best-corrected visual acuity (BCVA), intraocular pressure (IOP) and complications if any were noted.
Results:
Ninety eyes of 88 patients were included in the study. The mean age of the patients was 60.2 ± 10.2 yrs. Majority (75.6%) were males and 24.4% were females. Indications for pars-plana vitrectomy (PPV) with ACIOL implantation were nucleus drop in 16.6%, IOL drop in 25.5%, large posterior capsular rupture (PCR) with vitreous disturbance or zonular dehiscence (ZD) during cataract surgery in 33.3%, more than 180° subluxation of lens in 10% and traumatic lens or intraocular lens (IOL) drop in 14.4% cases. Preoperative and postoperative mean Log MAR visual acuity was 1.59 ± 0.44 and 0.36 ± 0.33 respectively, with few complications like cystoid macular edema (CME) in 8.8%, persistently raised IOP in 4.4%, persistent uveitis in 2.2%, retinal detachment (RD) in 2.2%, and tilted IOL in 1.1% cases.
Conclusion:
Out of different options available for secondary IOL implantation in patients with poor capsular support ACIOL has the advantages of cost-effectiveness, small learning curve, faster surgical time with a lesser rate of complications like IOL tilt, vitreous hemorrhage, and suture erosion as compared to scleral-fixated IOL (SF-IOL). Comparable visual outcome can be obtained by proper patient selection in these cases.
Journal Article
Thoracic bony human tail in a newborn baby: a rare case and review of literature
Background
The dorsal cutaneous appendage or so-called human tail is considered to be a cutaneous marker of underlying occult dysraphism.
Case presentation
We are presenting an unusual case of spinal dysraphism with a bony human tail at midthoracic region occurring in a newborn baby with tethered cord (conus at L4). Physical examination was unremarkable except for a thoracic appendage and a dermal sinus over coccyx region. Magnetic resonance imaging (MRI) scan of spine revealed bony outgrowth arising from D7 posterior element with multiple butterfly-shaped vertebrae found at D2 D4 D8 D9 D10 with low-lying conus at L4-L5 level. Surgical excision of the tail and untethering of the spinal cord along with excision of dermal sinus were performed. The infant had an uneventful postoperative period and was unchanged neurologically.
Conclusion
To our knowledge, no similar case has been reported in English literature till date.
Discussion
The specific features of this rare case of human tail treated surgically are discussed in light of the available literature.
Journal Article
Thermal Decomposition of Nickel Salt Hydrates
The thermal decomposition of NiSO4·6H2O, NiCl2·6H2O, and Ni(SO3NH2)2·xH2O was investigated in 50–1200 °C range by simultaneous thermogravimetry (TG) and differential scanning calorimetry (DSC) in flowing air. The solid products of the decomposed salts were identified by X-ray diffraction (XRD) analysis. The nickel salt hydrates first dehydrate in 100–350 °C, followed by decomposition into nickel oxide and gaseous species. The decomposition temperatures of the anhydrous NiSO4, NiCl2, and Ni(SO3NH2)2 are, respectively, 810 °C, 740 °C, 375–797 °C. The enthalpies for decomposition of the anhydrous salts, determined from the DSC curve, are 93.50 kJ·mol−1, 14.55 kJ·mol−1, and 26.67–56.15 kJ·mol−1for NiSO4, NiCl2, and Ni(SO3NH2)2, respectively.
Journal Article
Development of phospholipon®90H complex nanocarrier with enhanced oral bioavailability and anti-inflammatory potential of genistein
Genistein (GEN), an isoflavonoid, offers multifunctional biological activities. However, its poor oral bioavailability, aqueous solubility, extensive metabolism, and short half-life restricted its clinical use. Therefore, the Phospholipon
®
90H complex of genistein (GPLC) was prepared to enhance its biopharmaceutical properties and anti-inflammatory activity. GPLC was characterized by employing particle size and zeta potential, Fourier transforms infrared spectrophotometry, differential scanning calorimetry, powder x-ray diffractometry, proton nuclear magnetic resonance, aqueous solubility, in vitro dissolution, ex vivo permeation, oral bioavailability and in vivo anti-inflammatory activity. The complex showed high entrapment of GEN (∼97.88% w/w) within the Phospholipon
®
90H matrix. Particle size and zeta potential studies confirmed the small particle size with the modest stability of GPLC. The characterization analysis supported the formation of GPLC through the participation of hydrogen bonding between GEN and Phospholipon
®
90H. GPLC significantly enhanced the aqueous solubility (∼2-fold) compared to GEN. Dissolution studies revealed that GPLC drastically improved the GEN dissolution rate compared to GEN. Likewise, the complex improved the permeation rate across the membrane compared to GEN. GPLC formulation significantly enhanced the oral bioavailability of GEN via improving its Cmax, tmax, AUC, half-life and mean residence time within the blood circulation compared to GEN. The GPLC (∼20 mg/kg, p.o.) remarkably inhibited the increase in paw edema up to 5 h, compared to GEN and diclofenac. Results suggest that the Phospholipon
®
90 complex is a superior and promising carrier for enhancing the biopharmaceutical parameters of GEN and other bioactive with similar properties.
Journal Article
Unusual spinal injury in a child caused by a wooden foreign body
Traumatic penetrating spinal injuries with wooden objects are rare. A 6-year-old boy presented with history of fall from tree 1 month back. It resulted in a penetrating injury at the lumbosacral area, followed by a discharging sinus without any neurological deficit. Radiological imaging showed a foreign body at the spinous process level traversing L4-5 and is lodged in L3-4 intervertebral body causing listhesis of L3 over L4. The wooden stick was retrieved with a meticulous surgical procedure. Proper imaging and early surgery are necessary to prevent any complications and early recovery.
Journal Article
Compositional induced structural, dielectric, ferroelectric and optical study of Bismuth modified Barium Titanate ceramic
The present manuscript reports the structural, dielectric, ferroelectric and optical properties of Bi substituted BaTiO
3
(BT) ceramic with general formula Ba
1-x
Bi
2x/3
TiO
3
, synthesized by conventional solid-state reaction route. The recorded room temperature XRD spectra show a tetragonal symmetry and the tetragonality reduces with Bi-doped derivatives. The temperature-dependent dielectric behavior of the compositions is studied and modification in the paraelectric-ferroelectric (PE-FE) phase transition is observed. The dielectric diffusivity increases with substitution of Bi
3+
ion on A-site of BaTiO
3
because of modified polar structure. The temperature coefficient of dielectric constant has been calculated and obtained values suggest that the composition
x
= 0.01 and 0.025 are suitable for X5R (− 15% ≤
ε
-
∈
25
0
C
/
∈
25
0
C
≤ 15%, temperature range from − 55 to 85 °C) multi-layer ceramic capacitor (MLCC) application. A relaxor behavior has been observed for
x
= 0.1 and the Vogel-Fulcher fitting of the composition was carried out. The ferroelectric behavior illustrates that the coercive field and the remnant polarization increase up to
x
= 0.05 and decrease for higher doping. The energy storage efficiency for all the compositions has been calculated and the highest efficiency was obtained for
x
= 0.1. The optical property of all the synthesized samples has been studied using UV–Visible spectroscopy.
Journal Article
Pulsatile giant sacrococcygeal teratoma appearing like 2nd head
Sacrococcygeal teratoma is a congenital tumor of early infancy. Eighty percent are present in the first month of life. It is considered to be an extragonadal germ cell tumor that can be diagnosed in utero. It is considered to be a rare tumor in infancy and childhood. Incidences in girls are more common as compared to boys. Association with other congenital abnormalities of the gastrointestinal system, cardiovascular system, and urological manifestations may be present. Association with spinal dysraphism may be present. A complete systemic evaluation needs to be done before any surgical intervention. We hereby present you a case of a 5-day-old male child, born from a non-consanguineous marriage, who presented to us with a large swelling at the coccygeal region. The mass had a variegated consistency with an ear-like appendage over it with associated hair, bones, and necrotic tissue in it. The patient was evaluated with imaging (MRI) which revealed a heterogeneously enhancing mass at the sacrococcygeal region with mild extension into the pre-sacral space suggesting sacrococcygeal teratoma. After a complete evaluation for congenital abnormal abnormalities of other sites, gross total excision of the mass was performed. The post-operative condition of the baby was uneventful. A biopsy of the mass revealed a mature cystic teratoma. The baby is under follow-up at present.
Journal Article
Dysregulation of histone deacetylases in carcinogenesis and tumor progression: a possible link to apoptosis and autophagy
Dysregulation of the epigenome and constitutional epimutation lead to aberrant expression of the genes, which regulate cancer initiation and progression. Histone deacetylases (HDACs), which are highly conserved in yeast to humans, are known to regulate numerous proteins involved in the transcriptional regulation of chromatin structures, apoptosis, autophagy, and mitophagy. In addition, a non-permissive chromatin conformation is created by HDACs, preventing the transcription of the genes encoding the proteins associated with tumorigenesis. Recently, an expanding perspective has been reported from the clinical trials with HDACis (HDAC inhibitors), which has emerged as a determining target for the study of the detailed mechanisms underlying cancer progression. Therefore, the present review focuses on the comprehensive lucubration of post-translational modifications and the molecular mechanisms through which HDACs alter the ambiguities associated with epigenome, with particular insights into the initiation, progression, and regulation of cancer.
Journal Article
Safety and efficacy profile of intravitreal ranibizumab vs dexamethasone in treatment of naïve diabetic macular edema
Purpose:
To compare the safety and efficacy parameters of intravitreal ranibizumab vs intravitreal dexamethasone (IVD) in the treatment of patients with naïve diabetic macular edema (DME) in terms of best-corrected visual acuity (BCVA), central macular thickness (CMT), and possible complications like intraocular pressure (IOP) rise and cataract progression.
Methods:
A hospital-based prospective and comparative study of naïve DME patients was conducted between November 2020 and October 2021 with a minimum follow-up (F/U) period of 6 months. Thirty phakic patients received one dose of IVD implant (Group A) and the other 30 (Group B) received three consecutive monthly doses of ranibizumab. The main exclusion criteria were steroid responders and the presence of ocular inflammation.
Results:
The mean pre-injection CMT in Group A was 405µ and reduced to 297.07µ at 3 months and 278.35µ at 6 months. Mean increase in logMAR BCVA was 0.55. The mean pre-injection IOP was 16.28 and 17.64 mm of Hg at 6 months. In Group B, the mean pre-injection CMT was 401.07µ and reduced to 276.1µ at 3 months and 292.9µ at 6 months. Mean BCVA increased to 0.37. The mean pre-injection IOP was 17.28 mm Hg and 16.42 mm Hg at 6 months. There was no significant progression of cataract in both groups.
Conclusion:
The mean decrease in CMT was comparable in both the groups at 6 months F/U with an improvement of BCVA with no significant IOP fluctuation or cataract progression. Hence, IVD appears to be noninferior to ranibizumab in the treatment of naïve DME.
Journal Article