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Ajay Sheshadri MD MSCI Alberto A. Goizueta MD Vickie R. Shannon MD David London MD Guillermo Garcia-Manero MD Hagop M. Kantarjian MD Farhad Ravandi-Kashani MD Tapan M. Kadia MD Marina Y. Konopleva MD PhD Courtney D. DiNardo MD MS Sherry Pierce BSN BA Abdulrazzak Zarifa MD Aya A. Albittar MD Linda L. Zhong BS Fechukwu O. Akhmedzhanov MD Muhammad H. Arain MBBS Mansour Alfayez MD Ahmad Alotaibi MD Mehmet Altan MD Aung Naing MD Tito R. Mendoza PhD Myrna C. B. Godoy MD PhD Girish Shroff MD Sang T. Kim MD PhD Saadia A. Faiz MD Dimitrios P. Kontoyiannis MD PhD Fareed Khawaja MD Kristofer Jennings PhD Naval G. Daver MD 《Cancer》2022,128(14):2736-2745
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Cuilin Zhu Yale Su Smriti Juriasingani Hao Zheng Vitali Veramkovich Jifu Jiang Alp Sener Matthew Whiteman James Lacefield Dave Nagpal Faizah Alotaibi Kexiang Liu Xiufen Zheng 《American journal of transplantation》2019,19(11):3139-3148
Heart transplant has been accepted as the standard treatment for end‐stage heart failure. Because of its susceptibility to ischemia–reperfusion injury, the heart can be preserved for only 4 to 6 hours in cold static preservation solutions. Prolonged ischemia time is adversely associated with primary graft function and long‐term survival. New strategies to preserve donor hearts are urgently needed. We demonstrate that AP39, a mitochondria‐targeting hydrogen sulfide donor, significantly increases cardiomyocyte viability and reduces cell apoptosis/death after cold hypoxia/reoxygenation in vitro. It also decreases gene expression of proinflammatory cytokines and preserves mitochondria function. Using an in vivo murine heart transplant model, we show that preserving donor hearts with AP39‐supplemented University of Wisconsin solution (n = 7) significantly protects heart graft function, measured by quantitative ultrasound scan, against prolonged cold ischemia–reperfusion injury (24 hours at 4°C), along with reducing tissue injury and fibrosis. Our study demonstrates that supplementing preservation solution with AP39 protects cardiac grafts from prolonged ischemia, highlighting its therapeutic potential in preventing ischemia–reperfusion injury in heart transplant. 相似文献
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Hind M. Alkatan Mohammad Alotaibi Azza M.Y. Maktabi Hamad Aljaedi Sahar M. Elkhamary Yasser Al-Faky Adel H. Alsuhaibani 《Saudi Journal of Ophthalmology》2018,32(1):45-51
Background
Hematic cyst is a rare orbital condition that has a wide range of clinical presentation and is characterized pathologically by lack of endothelial lining.Purpose
To correlate clinical and radiological features of hematic cysts, to tissue diagnosis, and investigate the possible etiology behind this condition, its relation to trauma and other interesting histopathological findings.Methods
Retrospective case series at King Khaled Eye Specialist Hospital (KKESH) and King Abdulaziz University Hospital (KAUH) of all orbital lesions with tissue findings supporting the clinical and/or radiological diagnosis of hematic cyst.Results
A series of 13 cases was studied, 8 males and 5 females. Age ranged from 2 to 84?years with a median of 54. Most cases presented with proptosis (76.9%) and limitation of eye movements (69.2%). History of trauma was confirmed in only 2/13. The clinical diagnosis of hematic cyst was made prior to surgery in 38.4%. Magnetic Resonance Imaging (MRI) confirmed the presence of blood in the orbit in 7/7. Surgical intervention was the mainstay of treatment. Histopathologically, these lesions demonstrated variable constituents including blood break-down products (hemosiderin), macrophages, mononuclear inflammatory cells, hemorrhage, absent endothelial lining, reactive fibrosis and capsule-like formation. Cholesterol clefts with typical granulomas and multinucleated giant cells were present in 2 cases. A clue to an underlying vascular lesion was found histopathologically in 30.8%. None of the patients developed recurrence or long-term complications with an average follow up period of 1?year.Conclusion
Hematic cyst is a challenging clinical diagnosis that can be aided by radiological examination and histopathological confirmation. Trauma does not seem to play a major role while presence of a pre-existing vascular lesion with spontaneous hemorrhage may be an etiologic factor. Associated cholesterol granuloma is an interesting controversial finding. Surgical intervention is curative with possible persisting motility disturbance and/or the eye deviation and worse prognosis in post-traumatic cases. 相似文献77.
Purpose
This study was performed to measure the macular and the retinal nerve fiber layer (RNFL) thicknesses using optical coherence tomography (OCT) in patients with unilateral amblyopia.Methods
Measurement of the Retinal nerve fiber layer and Macular Retinal Layer thickness for both amblyopic and normal fellow eyes by (OCT) was carried out at king Abdulaziz University Hospital, Riyadh, Saudi Arabia.Results
Ninety-three patients with unilateral amblyopia between the ages of 5 years and 12 years were included. The macular retinal thickness and the RNFL thickness were measured using OCT. The mean macular retinal thickness was 259.3 μm and 255.6 μm, and the mean RNFL thickness was 112.16 μm and 106 μm, in the amblyopic eye and the normal eye, respectively. OCT assessment of RNFL thickness revealed a significantly thicker RNFL in amblyopic eye (P < 0.0001), but no statistically significant difference was found in macular retinal thickness (P = 0.195).Conclusion
The amblyopic process may involve the RNFL, but not the macula. However, further evaluation is needed. 相似文献78.
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Zohabia Rehman Talha Farooq Sana Javaid Waseem Ashraf Muhammad Fawad Rasool Noreen Samad Maryam Tariq Syed Muhammad Muneeb Anjum Farzane Sivandzade Faisal Alotaibi Faleh Alqahtani Imran Imran 《Saudi Pharmaceutical Journal》2022,30(5):494-507
IntroductionThe pentylenetetrazol (PTZ)-induced kindling model acts through the antagonism of central GABAA receptors and is one of the most widely used experimental animal models to study the characteristics of seizure development, behavioral manifestations and evaluation of antiseizure effects of existing and new drug candidates.MethodologyIn the current study, we investigated the impact of chronically administered levetiracetam (50 mg/kg) and sodium selenite (Sod.Se: 0.25 and 0.5 mg/kg) alone and in combination during the kindling process (21 days) in rats. Moreover, the behavioral changes (through the integration of a wide array of behavioral tests) and markers of oxidative stress in isolated brain homogenates were assessed in PTZ- kindled rats.ResultsThe outcomes from the fully kindled rats revealed the increased seizure score and severity over time with marked behavioral deficits. However, the animals treated with the selected dose of LEV alone showed partial protection from epileptogenesis and amelioration (P < 0.05) of anxiety-like behavior (open filed, light/dark, elevated plus maze tests), cognitive impairment (y-maze, novel object recognition and water maze tests) and depression (sucrose preference test). Moreover, combining the LEV with sodium selenite resulted in a significant neuroprotective effect in comparison to monotherapy by reducing the disease progression and ameliorating behavioral outcomes. The combination of Sod.Se in a dose-dependent manner with LEV produced additive effects as maximum animals remained seizure-free compared to kindled rats (P < 0.05). The attenuation of PTZ induced oxidative stress was evident from the reduced malondialdehyde and elevated superoxide dismutase (SOD), catalase and glutathione peroxidase (GPx) level with P < 0.05, as compared to control epileptic rats. These observed results of combination therapy might be due to the antioxidant and neuroprotective properties of Sod.Se, thus augmenting the seizure-modifying potentials of levetiracetam.ConclusionOverall, the current findings support the prominence of combining the Sod.Se with LEV, over monotherapy to deal with prevailing challenges of drug resistance and neuropsychiatric sufferings common in epileptic patients. 相似文献
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Badriyah Alotaibi Thanaa A. El-Masry Engy Elekhnawy Aya H. El-Kadem Asmaa Saleh Walaa A. Negm Dalia H. Abdelkader 《Drug delivery》2022,29(1):1848
Epigallocatechin-3-gallate (EGCG) was isolated from Cycas thouarsii leaves for the first time and encapsulated in aqueous core poly(lactide-co-glycolide) (PLGA) nanocapsules (NCs). This work investigates antimicrobial activity and in vivo reno-protective effects of EGCG-PLGA NCs in cisplatin-induced nephrotoxicity. A double emulsion solvent evaporation process was adopted to prepare PLGA NCs loaded with EGCG. Particle size, polydispersity index (PDI), zeta potential, percent entrapment efficiency (%EE), structural morphology, and in vitro release platform were all studied in vitro. The optimum formula (F2) with particle size (61.37 ± 5.90 nm), PDI (0.125 ± 0.027), zeta potential (–11.83 ± 3.22 mV), %EE (85.79 ± 5.89%w/w), initial burst (36.85 ± 4.79), and percent cumulative release (87.79 ± 9.84) was selected for further in vitro/in vivo studies. F2 exhibited an enhanced antimicrobial activity against uropathogens as it had lower minimum inhibitory concentration (MIC) values and a more significant impact on bacterial growth than free EGCG. Forty male adult mice were randomly allocated into five groups: control vehicle, untreated methotrexate, MTX groups treated with a daily oral dose of free EGCG, placebo PLGA NCs, and EGCG PLGA NCs (F2) for 10 days. Results showed that EGCG PLGA NCs (F2) exerted promising renoprotective effects compared to free EGCG. EGCG PLGA NCs group induced a significant decrease in kidney index, serum creatinine, kidney injury molecule-1 (KIM-1), NGAL serum levels, and pronounced inhibition of NLPR-3/caspase-1/IL/1β inflammasome pathway. It also significantly ameliorated oxidative stress and decreased NFκB, Bax expression levels. Aqueous core PLGA NCs are a promising formulation strategy that provides high polymeric protection and sustained release pattern for hydrophilic therapeutic agents. 相似文献