Your browser doesn't support javascript.
loading
: 20 | 50 | 100
1 - 20 de 32
1.
Ear Nose Throat J ; : 1455613241249085, 2024 Apr 23.
Article En | MEDLINE | ID: mdl-38654496

Lipoma is a benign mesenchymal tumor primarily found in subcutaneous fat. Post-traumatic lipoma (PTL) sporadically associates with blunt of penetrating trauma, but the exact mechanism remains not fully understood. This article unveils a rare case of a 32-year-old male presenting with a cervical lipoma at a previous surgical incision, an unprecedented occurrence. The patient incidentally detected the mass and underwent complete excision, with pathology confirming the diagnosis. The etiology of PTL remains speculative, with proposed mechanisms postulating inflammatory chemokines inducing preadipocyte differentiation and acute trauma causing septal rupture, allowing lipoma formation. Notably, the prior use of blade in our patient's surgical procedure aligns with this hypothesis. The varied nature of trauma encompasses acute, blunt, and penetrating injuries. This case represents the second instance attributed to penetrating trauma and the first occurrence at a surgical incision site.

2.
Int Ophthalmol ; 44(1): 42, 2024 Feb 09.
Article En | MEDLINE | ID: mdl-38334899

AIM: To report on the distribution of eye diseases, aetiologies of severe visual impairment/blindness (SVI/BL) and unmet eye care needs of the Syrian refugee population and the Lebanese host community. METHODS: This retrospective study analysed the data of patients that were examined during the Ayounkon project -an eye health care project offering medical and surgical treatment for Syrian refugees and Lebanese host community in the Bekaa Valley in Lebanon. The project took place in three different primary health care centres and involved cooperation between several NGOs and ophthalmologists working on a voluntary basis. Data was analysed for distribution of eye diseases and aetiologies responsible for monocular and binocular SVI/BL. RESULTS: A total of 2067 patients were included, 677 were children < 18 years. The most frequent pathologies were ocular allergy (10%), and cataract (7.4%). 158 patients (7.6%) were referred for surgery. Glasses were prescribed for 1103 patients (53.4%), of whom 242 (21.9%) were children of school age. SVI/BL was found in 276 patients (13%). The condition was bilateral in 116 patients (42%). SVI/BL was significantly more frequent in the Syrian population than in the Lebanese (186 patients, 14.8% versus 86 patients, 11.3%; p = 0.04). The main causes for SVI/BL were cataract, keratoconus/corneal decompensation and amblyopia. CONCLUSION: The Syrian refugee population and the Lebanese host community have a high prevalence of ophthalmic pathologies and SVI/BL. Visual impairment is more prevalent in the refugee population. Our findings underscore the importance of targeted interventions and access to eye care services for these populations.


Cataract , Keratoconus , Refugees , Vision, Low , Child , Humans , Lebanon/epidemiology , Syria/epidemiology , Retrospective Studies , Blindness/epidemiology , Blindness/etiology , Vision, Low/etiology , Vision Disorders/epidemiology , Cataract/complications , Keratoconus/complications
3.
Allergy ; 79(2): 471-484, 2024 Feb.
Article En | MEDLINE | ID: mdl-38010857

BACKGROUND: Food allergy (FA) is an inappropriate immunological response to food proteins resulting from an impaired induction of oral tolerance. Various early environmental factors can affect the establishment of intestinal homeostasis, predisposing to FA in early life. In this context, we aimed to assess the effect of chronic perinatal exposure to food-grade titanium dioxide (fg-TiO2 ), a common food additive. METHODS: Dams were fed a control versus fg-TiO2 -enriched diet from preconception to weaning, and their progeny received the same diet at weaning. A comprehensive analysis of baseline intestinal and systemic homeostasis was performed in offspring 1 week after weaning by assessing gut barrier maturation and microbiota composition, and local and systemic immune system and metabolome. The effect of fg-TiO2 on the susceptibility of progeny to develop oral tolerance versus FA to cow's milk proteins (CMP) was performed starting at the same baseline time-point, using established models. Sensitization to CMP was investigated by measuring ß-lactoglobulin and casein-specific IgG1 and IgE antibodies, and elicitation of the allergic reaction by measuring mouse mast cell protease (mMCP1) in plasma collected after an oral food challenge. RESULTS: Perinatal exposure to fg-TiO2 at realistic human doses led to an increased propensity to develop FA and an impaired induction of oral tolerance only in young males, which could be related to global baseline alterations in intestinal barrier, gut microbiota composition, local and systemic immunity, and metabolism. CONCLUSIONS: Long-term perinatal exposure to fg-TiO2 alters intestinal homeostasis establishment and predisposes to food allergy, with a clear gender effect.


Food Hypersensitivity , Milk Hypersensitivity , Humans , Male , Pregnancy , Female , Cattle , Mice , Animals , Food Hypersensitivity/etiology , Food Hypersensitivity/metabolism , Immunoglobulin G , Caseins , Diet , Homeostasis
4.
Eur J Orthop Surg Traumatol ; 34(2): 995-1002, 2024 Feb.
Article En | MEDLINE | ID: mdl-37828298

BACKGROUND: Tibial shaft fractures are common injuries that can be treated with various methods, including interlocked intramedullary nail (IMN). However, there is limited data on the clinical outcomes of IMN for tibial shaft fractures in Yemen. OBJECTIVE: To evaluate the clinical outcomes of primary IMN for tibial shaft fractures in Yemen. METHODS: This was a prospective study of 134 patients who underwent primary IMN for tibial shaft fractures et al.-Thawra Modern General Hospital in Sana'a, Yemen, between June 2016 and June 2020. The patients were between 18 and 70 years old, and the fractures were classified according to the AO classification system. The fractures were treated with IMN using a standard technique. The patients were followed up for a minimum of 2 years. The outcome measures included union time, complications, and functional scores. RESULTS: The mean union time was 17 weeks. The overall complication rate was 18.7%. The most common complications were infection (8.2%), delayed union (6.7%), and nonunion (3.7%). The mean functional scores at the final follow-up were 91.4 for the Knee Society Score and 90.2 for the American Orthopaedic Foot and Ankle Society Score. CONCLUSION: Primary IMN is an effective and reliable method for treating tibial shaft fractures in Yemen, with acceptable union time, complication rate, and functional outcomes.


Fracture Fixation, Intramedullary , Tibial Fractures , Humans , Adolescent , Young Adult , Adult , Middle Aged , Aged , Prospective Studies , Fracture Fixation, Intramedullary/adverse effects , Fracture Fixation, Intramedullary/methods , Yemen , Fracture Healing , Bone Nails , Treatment Outcome , Retrospective Studies
5.
J Vis Exp ; (201)2023 Nov 21.
Article En | MEDLINE | ID: mdl-38078614

EUS-B is a procedure using the echoendobronchoscope in the esophagus and stomach. The procedure is a minimally invasive, safe, and feasible approach that pulmonologists can use to visualize and biopsy structures adjacent to the esophagus and stomach. EUS-B gives access to many structures of which some may also be reached by EBUS (mediastinal lymph nodes, lung or pleural tumors, pericardial fluid) while others cannot be reached such as retroperitoneal lymph nodes, ascites, and lesions in the liver, pancreas or left adrenal gland. The procedure is a pulmonologist- and patient- friendly version of the gastroenterologists' EUS using the thin EBUS endoscope that the pulmonologist already masters. Thus EUS-B training should be easy and a natural continuation of EBUS. With the patient under conscious sedation and in the supine position, the echoendoscope is introduced either through the nostril or mouth into the oropharynx. Then the patient is encouraged to swallow while the endoscope is slowly bent posteriorly and introduced into the esophagus and stomach. Using the ultrasonic image, the operator identifies the six landmarks by EUS-B and EUS: the left liver lobe, abdominal aorta (with the celiac trunk and superior mesenteric artery), left adrenal gland, and mediastinal lymph node stations 7, 4L, and 4R. Biopsies can be taken from suspected lesions under real-time ultrasonographic guidance- fine needle aspiration (EUS-B-FNA) using a technique similar to that used with EBUS-TBNA. The biopsy order is M1b-M1a-N3-N2-N1-T (M = metastasis, N = lymph node, T = tumor) to avoid iatrogenic upstaging. Pre- and post-procedural observation is similar to that of bronchoscopy. EUS-B is safe and feasible in the hands of experienced interventional pulmonologists and provides a significant expansion of the diagnostic possibilities in providing safe, fast, and thorough diagnosis and staging of lung cancer.


Lung Neoplasms , Humans , Lung Neoplasms/diagnostic imaging , Lung Neoplasms/pathology , Esophagus/pathology , Mediastinum/diagnostic imaging , Mediastinum/pathology , Endoscopic Ultrasound-Guided Fine Needle Aspiration , Bronchoscopy/methods , Endoscopes , Lymph Nodes/diagnostic imaging , Lymph Nodes/pathology
6.
Heliyon ; 9(11): e20993, 2023 Nov.
Article En | MEDLINE | ID: mdl-37928029

The study aims to discover the variables that have contributed to the stability of Jordan's political system, despite the barriers and conditions that the Jordanian state has faced for more than a century in the world's tensest region. It began with a hypothesis: there is a link between Jordan's stability and the legitimacy of the regime, which is founded on voluntary consent between the leadership and the people, as well as loyalty to the leadership, belonging to the homeland, the rule of law, and respect for the constitution. The study represented Jordan's stability features, stages of development, and current position on the world's political map in the first century. The study's scientific and practical significance lies in clarifying Jordan's nature and the growth, progress, and prosperity that this country is experiencing at all levels, despite the challenges it faced during the centennial; and in assisting researchers, scholars, politicians, and decision-makers in similar countries to Jordan in determining how to benefit from Jordan's experience as a role model. The study used historical, descriptive-analytical, systems analytical, and decision-making methodologies to answer the study's questions and examine its premise. It concluded that the ruling regime's religious, historical, and political legitimacy, as well as its relationship with the Hashemites, the nature of Jordanian society, as well as the rule of law and institutions, national unity, and the strong mutual relationship between the leadership and the people, all contributed to Jordan's century-long process of political stability and development.

7.
Reg Anesth Pain Med ; 48(8): 414-419, 2023 08.
Article En | MEDLINE | ID: mdl-37055185

This study reports the needs-based development, effectiveness and feasibility of a novel, comprehensive spinal cord stimulation (SCS) digital curriculum designed for pain medicine trainees. The curriculum aims to address the documented systematic variability in SCS education and empower physicians with SCS expertise, which has been linked to utilization patterns and patient outcomes. Following a needs assessment, the authors developed a three-part SCS e-learning video curriculum with baseline and postcourse knowledge tests. Best practices were used for educational video production and test-question development. The study period was from 1 February 2020 to 31 December 2020. A total of 202 US-based pain fellows across two cohorts (early-fellowship and late-fellowship) completed the baseline knowledge assessment, while 122, 96 and 88 participants completed all available post-tests for Part I (Fundamentals), Part II (Cadaver Lab) and Part III (Decision Making, The Literature and Critical Applications), respectively. Both cohorts significantly increased knowledge scores from baseline to immediate post-test in all curriculum parts (p<0.001). The early-fellowship cohort experienced a higher rate of knowledge gain for Parts I and II (p=0.045 and p=0.027, respectively). On average, participants viewed 6.4 out of 9.6 hours (67%) of video content. Self-reported prior SCS experience had low to moderate positive correlations with Part I and Part III pretest scores (r=0.25, p=0.006; r=0.37, p<0.001, respectively). Initial evidence suggests that Pain Rounds provides an innovative and effective solution to the SCS curriculum deficit. A future controlled study should examine this digital curriculum's long-term impact on SCS practice and treatment outcomes.


Physicians , Spinal Cord Stimulation , Humans , Pain , Curriculum , Treatment Outcome , Pain Management
8.
Respir Med Case Rep ; 43: 101833, 2023.
Article En | MEDLINE | ID: mdl-36942163

This is the first paper to report sampling of pancreatic lesions by EUS-B-FNA. A 76 year old patient suspected of primary lung cancer presented with a 36 × 24 mm lesion in the pancreas. Thoracentesis showed malignant cells suggestive of mucinous adenocarcinoma, but immunohistochemistry was inconclusive. Due to rapid deterioration of performance status of this frail patient, the program was shortened to EUS-B-FNA of the pancreatic lesion, which showed mucinous adenocarcinoma suggestive of primary pancreatic cancer. We conclude that EUS-B-FNA from a pancreatic lesion in the hands of a chest physician is feasible and diagnostic of a tumor in pancreas.

9.
Microorganisms ; 10(12)2022 Dec 07.
Article En | MEDLINE | ID: mdl-36557674

Microbial fuel cells are a promising technology for future wastewater treatment, as it allows cleaning and power generation simultaneously. The bottleneck of microbial fuel cells is often its cathodes because they determine the power output. Gas diffusion electrodes might overcome this bottleneck due to their low production costs and high oxygen reduction rates. However, biofilm formation on the gas diffusion electrodes reduces their performance over time. In this work, a new reactor design of the microbial fuel cell using rotating gas diffusion electrodes is presented. The biofilm growth on the electrode during operation was observed and its effect on the performance of the microbial fuel cell was examined. In addition, different antifouling strategies were investigated over a period of 80 days. It was found that already after 7 days of operation a complete biofilm had grown on an untreated gas diffusion electrode. However, this does not seem to affect the performance of the cells in the beginning. Differences in the performance of the reactors with and without an antifouling strategy only become apparent from day 15 onwards. The use of UV radiation and antibacterial membranes leads to the best results with maximum power densities of approx. 200 mW m-2 while the untreated microbial fuel cell only achieves a maximum power density of approx. 20 mW m-2.

10.
Cureus ; 14(11): e31407, 2022 Nov.
Article En | MEDLINE | ID: mdl-36514666

Transgender individuals experience lower overall health outcomes than cisgender individuals due to a higher burden of chronic illnesses in this demographic. An early loss in renal function is frequently seen in acute interstitial nephritis (AIN), which is defined by the presence of inflammatory infiltrates and edema inside the interstitium. Infections or medication use can cause interstitial nephritis. In two-thirds of cases, interstitial nephritis caused by drugs is detected. Few people are affected by it, thus, it's thought to be immune-mediated rather than dose-dependent. In this report, a 32-year-old transgender female was admitted to a hospital due to generalized swelling following filler injections in the buttocks region. It is important for doctors and patients to be informed about these procedures' potential risks. Additionally, more study has to be done on the negative effects of filler injections.

11.
Front Allergy ; 3: 1067281, 2022.
Article En | MEDLINE | ID: mdl-36545344

Food allergy (FA) is an inappropriate immune response against dietary antigens. Various environmental factors during perinatal life may alter the establishment of intestinal homeostasis, thereby predisposing individuals to the development of such immune-related diseases. Among these factors, recent studies have emphasized the chronic dietary exposure of the mother to foodborne inorganic nanoparticles (NP) such as nano-sized silicon dioxide (SiO2), titanium dioxide (TiO2) or silver (Ag). Indeed, there is growing evidence that these inorganic agents, used as food additives in various products, as processing aids during food manufacturing or in food contact materials, can cross the placental barrier and reach the developing fetus. Excretion in milk is also suggested, hence continuing to expose the neonate during a critical window of susceptibility. Due to their immunotoxical and biocidal properties, such exposure may disrupt the host-intestinal microbiota's beneficial exchanges and may interfere with intestinal barrier and gut-associated immune system development in fetuses then the neonates. The resulting dysregulated intestinal homeostasis in the infant may significantly impede the induction of oral tolerance, a crucial process of immune unresponsiveness to food antigens. The current review focuses on the possible impacts of perinatal exposure to foodborne NP during pregnancy and early life on the susceptibility to developing FA.

12.
Med Arch ; 76(5): 373-376, 2022 Oct.
Article En | MEDLINE | ID: mdl-36545456

Background: Abortion is an increasingly important issue since it is discussed from multiple points of view including medical, social, religious, and legal aspects. Abortion is an old topic that is continuously discussed from various perspectives including medicine, laws, and society. Abortion is an illegal in general terms, but it can be carried out under certain medical conditions for the interest of pregnant woman, if the pregnancy is threatening her life. Objective: The aim of this article is updates of the literature about medico-legal aspects of the abortion. Methods: This is descriptive study about medico-legal aspects of the abortion based on searching this topic in the scientific literature deposited in on-line databases. Results and Discussion: . At global level, more and more women are opting to terminate their pregnancies for societal reasons. It is estimated that 50 million unborn babies are terminated every year across the globe, causing the lives of 200,000 pregnant women and the agony of millions more people. It is a difficult decision to conduct abortion. In this study, a comprehensive review of the literature was made to discuss abortion from medical, legal, and cultural points of view. In general, abortion was legally discussed because legal aspects involve the various perspectives. Conclusion: From religious points of view, abortion implies ending the life of the fetus. The right of life is to be kept. The international laws do not permit abortion and criminalize the parties involved in its existence unless it is recognized it is crucial to save the life of pregnant woman..


Abortion, Induced , Abortion, Legal , Humans , Female , Pregnancy , Pregnant Women
13.
Water Sci Technol ; 86(12): 3236-3247, 2022 Dec.
Article En | MEDLINE | ID: mdl-36579881

Using electrolysis systems to degrade organics in wastewater encourages this technique to remove micropollutants (MPs) in different types of water. In this work, a cell consisting of an anode as a boron-doped diamond (BDD) electrode combined with a gas diffusion (GDE) cathode without a separator showed that MPs degradation can be effectively achieved. Investigating different operating parameters, it was stated that applying a low current density (2 mA/cm2) and setting the Reynolds number of the electrolyte flow through the cell at the laminar range raised the treatment time by 3-fold at the same energy demand. This arrangement increased the MPs removal. Some substances like diclofenac were removed up to 84% at a longer treatment time of 180 min coupled with an increase in energy demand. The results at the mentioned parameters indicated an adequate generation rate of radicals needed to remove MPs and the oxidation reactions were promoted. The results show high potential to the investigated electrolysis system in removing MPs in wastewater under considering the need for further reduction of the energy demand.


Diamond , Water Pollutants, Chemical , Boron , Water , Wastewater , Electrolysis/methods , Oxidation-Reduction , Electrodes , Water Pollutants, Chemical/analysis
14.
Cureus ; 14(6): e26337, 2022 Jun.
Article En | MEDLINE | ID: mdl-35911329

Background Since the spread of the COVID-19 virus, governments are putting significant resources into ending the pandemic. Vaccination arises as the best solution to get back to our everyday lives. However, we are now facing vaccine hesitancy, which is a critical problem. Methods This cross-sectional study was conducted between December 15, 2020, and March 1, 2021, using a validated online-based questionnaire; participants were compared using the Statistical Package for the Social Sciences (SPSS) program based on multiple factors. Results A total of 1607 participants throughout Jordan have responded to the questionnaire, among which 880 (54.8%) have bachelor's degrees, 236 (14.7%) have a high educational level (master and doctoral), and 491 (30.5%) have a diploma or less. Although this is a non-probable sample, it is not a representative sample as, according to United Nations Educational, Scientific and Cultural Organization (UNESCO), only 33.6% of the Jordan population have a tertiary education. Overall, 892 (55.5%) of the studied subjects had the intention to take the vaccine, distributed as follows: 156 (66.1%) of the high educational participants wanted to take the vaccine, compared to 512 (58.2%) of those who have bachelor's degree and 224 (45.6%) of those who have diploma or less (p < 0.001). Reading scientific articles talking about the vaccines and their effects (55.6%, p < 0.001), knowing the mechanism of action (45.2%, p = 0.007), getting proper medical advice (27.2%, p < 0.001), encouraged by the increasing number of infections and deaths (39.7%, p < 0.001), and the number of people who received the vaccine (16.1%, p < 0.001) were the most critical factors that played a role in taking the vaccine by all of the studied groups. Male gender (OR = 2.02; 95% CI = 1.54-2.64; p < 0.001), high income of more than 1000 JDs (1400 USD) (OR = 3.23; 95% CI = 2.21-4.71; p < 0.001), having an educational level of either high education (OR = 3.39; 95% CI = 2.07-5.55; p < 0.001) or bachelor degree (OR = 1.67; 95% CI = 1.25-2.24; p = 0.001), and being encouraged by the increasing number of infections and deaths caused by COVID-19 (OR = 1.97; 95% CI = 1.46-2.66; p < 0.001) were all significantly associated with the willingness to take the vaccine. Conclusion As the world rushes toward vaccination to end the pandemic, efforts are needed to end this phenomenon of vaccine hesitancy by enlightening people with the precise knowledge regarding the vaccine's mechanism of action, side effects, and efficacy focusing mainly on people with lower educational levels.

15.
Am J Hosp Palliat Care ; 37(10): 761-766, 2020 Oct.
Article En | MEDLINE | ID: mdl-31994897

BACKGROUND: Information is presently lacking about the end-of-life care in intensive care unit (ICU). We explored the characteristics, mortality rates, and treatments received in the last few days of life for patients who died in ICU. METHODS: This was a retrospective multicenter cohort study. We included patients who died from different medical illnesses between January 2014 and January 2017 in 8 medical ICUs across 3 major health-care systems in Jordan. Of 11 029 patients who were admitted for the study in ICUs, data from 3885 health records were retrieved and analyzed. Pediatric patients aged younger than 18 years and patients admitted to an ICU for less than 4 hours were excluded. RESULTS: The mean ICU mortality rate was 34.6% (29%-38%), with a slight decline from 2014 through 2016. Most of the patients who died were male (56.6%), transferred from the emergency department (46.8%), and had multiple comorbidities (74%). Cardiopulmonary resuscitation, invasive mechanical ventilation, pharmacological hemodynamic support, and artificial hydration were pursued until death for most patients (91.5%, 80.1%, 78.8%, and 94.1%, respectively). CONCLUSIONS: Aggressive treatment modalities were usually pursued for critically ill patients at the end of their lives. There is a need to explore further the current end-of-life care needs and practices in ICUs in Jordan and to tailor end-of-life care and management suitably to meet the needs of Islamic and Arabic cultures.


Intensive Care Units , Terminal Care , Adolescent , Child , Cohort Studies , Female , Humans , Jordan/epidemiology , Male , Retrospective Studies
16.
Med Phys ; 47(4): 1949-1957, 2020 Apr.
Article En | MEDLINE | ID: mdl-31985827

PURPOSE: There is a growing interest in extending the axial fields-of-view (AFOV) of PET scanners. One major limitation for the widespread clinical adoption of such systems is the multifold increase in the associated material costs. In this study, we propose a cost-effective solution to extend the PET AFOV using a sparse detector rings configuration. The corresponding physical performance was validated using Monte Carlo simulations. METHODS: Monte Carlo model of the Siemens BiographTM mCT PET/CT, with a 21.8 cm AFOV and a set of compact rings of LSO crystals was developed as a gold standard. The mCT configuration was then modified by interleaving the LSO crystals in the axial direction within each detector block with 4 mm physical gaps (equivalent to the LSO crystal axial dimension) thus extending the AFOV to 43.6 cm (Ex-mCT). The physical performances of the two MC models were assessed and then compared using NEMA NU 2-2007 standards. RESULTS: Ex-mCT showed <0.2 mm difference in transaxial spatial resolution, and, 0.8 mm and 0.3 mm deterioration in axial spatial resolution, compared to the mCT, at 1 and 10 cm off-center of the transaxial field-of-view respectively. The system sensitivities for the mCT and Ex-mCT models were 9.4 ± 0.2 and 10.75 ± 0.2 cps/kBq respectively. The higher sensitivity of Ex-mCT was due to four additional detector rings required to double the mCT AFOV. PET images of the NEMA Image Quality (IQ) phantom showed no artifacts due to detector rings sparsity, and all spheres were visible in both configurations. Ex-mCT achieved percent contrast recoveries within 5.6% of those of the mCT for all spheres and a maximum of 36% higher background variability at the center of the AFOV. The Ex-mCT, however, showed a more uniform noise distribution over an axial range of almost twice the length of the mCT AFOV. CONCLUSIONS: Using the proposed sparse detector-ring configuration, the AFOV of current generation PET systems can be doubled while maintaining the original number and volume of detector crystal elements, and without jeopardizing the system's overall physical performance. Despite an increase in the noise level, the Ex-mCT exhibited an improved noise uniformity.


Monte Carlo Method , Positron-Emission Tomography/instrumentation , Signal-To-Noise Ratio
17.
PLoS One ; 14(10): e0223475, 2019.
Article En | MEDLINE | ID: mdl-31600289

In the present study, antibiotic residues were detected in milk samples collected from the dairy herds located in Karnataka, India, by microbiological assay. Subsequently, the detected antibiotics were identified as azithromycin and tetracycline, by high-performance liquid chromatography, further both the antibiotics detected in the cow milk samples were found to be at high concentration (9708.7 and 5460 µg kg-1, respectively). We then investigated the effects of temperature and pH on the stabilities of azithromycin and tetracycline to determine the degradation rate constant k using first-order kinetic equation. Results indicated that significant reduction in stability and antibacterial activity of azithromycin solution when subjected to 70 and 100°C for 24 h. While stability of tetracycline was significantly reduced when subjected to 70 and 100°C for 24 h. However no significant reduction in antibacterial activity of tetracycline was observed at respective temperatures when compared with that of control. In addition, the stabilities of azithromycin and tetracycline were found to be decreased in acidic pH 4-5. The results of the present study revealed the high risk of contamination of milk sample with veterinary antibiotics and also demonstrated the effect of temperature and pH on stability of antibiotics. Therefore the study suggest that the qualitative and quantitative screening of milk for the presence of antibiotics need to be strictly performed to ensure safe drinking milk for consumers.


Anti-Bacterial Agents/analysis , Milk/chemistry , Animals , Azithromycin/pharmacology , Bacillus subtilis/drug effects , Hydrogen-Ion Concentration , Kinetics , Microbial Sensitivity Tests , Temperature , Tetracycline/pharmacology
18.
J Virol ; 93(24)2019 12 15.
Article En | MEDLINE | ID: mdl-31554680

Ocular herpes simplex keratitis (HSK) is a consequence of viral reactivations from trigeminal ganglia (TG) and occurs almost exclusively in the same eye in humans. In our murine oro-ocular (OO) model, herpes simplex virus 1 (HSV-1) inoculation in one side of the lip propagates virus to infect the ipsilateral TG. Replication here allows infection of the brainstem and infection of the contralateral TG. Interestingly, HSK was observed in our OO model only from the eye ipsilateral to the site of lip infection. Thus, unilateral restriction of HSV-1 may be due to differential kinetics of virus arrival in the ipsilateral versus contralateral TG. We inoculated mice with HSV-1 reporter viruses and then superinfected them to monitor changes in acute- and latent-phase gene expression in TG after superinfection compared to the control (single inoculation). Delaying superinfection by 4 days after initial right lip inoculation elicited failed superinfecting-virus gene expression and eliminated clinical signs of disease. Initial inoculation with thymidine kinase-deficient HSV-1 (TKdel) completely abolished reactivation of wild-type (WT) superinfecting virus from TG during the latent stage. In light of these seemingly failed infections, viral genome was detected in both TG. Our data demonstrate that inoculation of HSV-1 in the lip propagates virus to both TG, but with delay in reaching the TG contralateral to the side of lip infection. This delay is responsible for restricting viral replication to the ipsilateral TG, which abrogates ocular disease and viral reactivations from the contralateral side. These observations may help to understand why HSK is observed unilaterally in humans, and they provide insight into vaccine strategies to protect against HSK.IMPORTANCE Herpetic keratitis (HK) is the leading cause of blindness by an infectious agent in the developed world. This disease can occur after reactivation of herpes simplex virus 1 in the trigeminal ganglia, leading to dissemination of virus to, and infection of, the cornea. A clinical paradox is evidenced by the bilateral presence of latent viral genomes in both trigeminal ganglia, while for any given patient the disease is unilateral with recurrences in a single eye. Our study links the kinetics of early infection to unilateral disease phenomenon and demonstrates protection against viral reactivation when kinetics are exploited. Our results have direct implications in the understanding of human disease pathogenesis and immunotherapeutic strategies for the treatment of HK and viral reactivations.


Herpesvirus 1, Human/physiology , Keratitis, Herpetic/virology , Lip/virology , Virus Latency/physiology , Virus Replication/physiology , Animals , Cornea/virology , Female , Gene Expression Regulation, Viral , Genes, Viral/genetics , Herpesvirus 1, Human/genetics , Mice , Mice, Inbred BALB C , MicroRNAs/genetics , MicroRNAs/metabolism , Trigeminal Ganglion/virology , Virus Latency/genetics
19.
J Neurointerv Surg ; 10(Suppl 1): i45-i49, 2018 Jul.
Article En | MEDLINE | ID: mdl-30037956

BACKGROUND: Limited post-marketing data exist on the use of the Solitaire FR device in clinical practice. The North American Solitaire Stent Retriever Acute Stroke (NASA) registry aimed to assess the real world performance of the Solitaire FR device in contrast with the results from the SWIFT (Solitaire with the Intention for Thrombectomy) and TREVO 2 (Trevo versus Merci retrievers for thrombectomy revascularization of large vessel occlusions in acute ischemic stroke) trials. METHODS: The investigator initiated NASA registry recruited North American sites to submit retrospective angiographic and clinical outcome data on consecutive acute ischemic stroke (AIS) patients treated with the Solitaire FR between March 2012 and February 2013. The primary outcome was a Thrombolysis in Myocardial Ischemia (TIMI) score of ≥2 or a Treatment in Cerebral Infarction (TICI) score of ≥2a. Secondary outcomes were 90 day modified Rankin Scale (mRS) score, mortality, and symptomatic intracranial hemorrhage. RESULTS: 354 patients underwent treatment for AIS using the Solitaire FR device in 24 centers. Mean time from onset to groin puncture was 363.4±239 min, mean fluoroscopy time was 32.9±25.7 min, and mean procedure time was 100.9±57.8 min. Recanalization outcome: TIMI ≥2 rate of 83.3% (315/354) and TICI ≥2a rate of 87.5% (310/354) compared with the operator reported TIMI ≥2 rate of 83% in SWIFT and TICI ≥2a rate of 85% in TREVO 2. Clinical outcome: 42% (132/315) of NASA patients demonstrated a 90 day mRS ≤2 compared with 37% (SWIFT) and 40% (TREVO 2). 90 day mortality was 30.2% (95/315) versus 17.2% (SWIFT) and 29% (TREVO 2). CONCLUSIONS: The NASA registry demonstrated that the Solitaire FR device performance in clinical practice is comparable with the SWIFT and TREVO 2 trial results.


Brain Ischemia/surgery , Product Surveillance, Postmarketing/trends , Registries , Stents/trends , Stroke/surgery , Thrombectomy/trends , Aged , Aged, 80 and over , Brain Ischemia/epidemiology , Cohort Studies , Female , Humans , Male , Middle Aged , North America/epidemiology , Product Surveillance, Postmarketing/methods , Retrospective Studies , Stroke/epidemiology , Thrombectomy/methods , Treatment Outcome , United States/epidemiology
20.
Interv Neurol ; 5(3-4): 101-110, 2016 Sep.
Article En | MEDLINE | ID: mdl-27781037

BACKGROUND: The Interventional Management of Stroke III (IMS-III) trial demonstrated no benefit for intravenous recombinant tissue plasminogen activator (IV rt-PA) followed by endovascular therapy versus IV rt-PA alone. However, IMS-III mostly included earlier generation devices. The recent thrombectomy trials have incorporated the stent-retriever technology, but their generalizability remains unknown. METHODS: The North American Solitaire Acute Stroke (NASA) registry recruited patients treated with the Solitaire FR™ device between March 2012 and February 2013. The NASA-IMS-III-Like Group (NILG baseline NIHSS score ≥10 who received IV rt-PA) was compared to the IV rt-PA and IV + intra-arterial (IA)-IMS-III groups and the MR CLEAN, ESCAPE, SWIFT Prime, and REVASCAT trial controls to assess the stent-retriever treatment in the 'real-world' setting. The NILG was also compared to non-IV rt-PA NASA patients to evaluate the impact of IV rt-PA on thrombectomy. RESULTS: A total of 136 of the 354 NASA patients fulfilled criteria for the NILG. Baseline characteristics were well balanced across groups. Time from onset to puncture was higher in NILG than IV+IA-IMS-III patients (274 ± 112 vs. 208 ± 47 min, p < 0.0001). Occlusions involving the intracranial ICA, MCA-M1, or basilar arteries were more common in NILG than IV+IA-IMS-III patients (91.2 vs. 47.2%, p < 0.00001). Modified thrombolysis in cerebral infarction ≥2b reperfusion was higher in NILG than IV+IA-IMS-III patients (74.3 vs. 39.6%, p < 0.00001). A 90-day modified Rankin Scale score ≤2 was more frequent in the NILG than IV+IA-IMS-III patients (51.9 vs. 40.8%, p = 0.03) and MR CLEAN (51.9 vs. 19.1%, p < 0.00001), ESCAPE (51.9 vs. 29.3%, p = 0.0002), SWIFT Prime (51.9 vs. 35.5%, p = 0.02), and REVASCAT (51.9 vs. 28.2%, p = 0.0003) controls. Symptomatic intracranial hemorrhage definitions varied across the different studies with rates ranging from 2.7% (ESCAPE) to 11.9% (NILG). The NILG 90-day mortality (24.4%) was higher than in SWIFT Prime but comparable to all other groups. IV rt-PA was an independent predictor of good outcome in NASA (OR = 2.3, 95% CI 1.2-4.7). CONCLUSION: Our results support the 'real-world' applicability of the recent thrombectomy trials.

...