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1.
Ann Med Surg (Lond) ; 86(5): 2446-2452, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38694285

RESUMEN

Background: Epidural haematoma (EDH) accounts for up to 15% of severe traumatic brain injury (TBI) cases and remains the most common cause of mortality and disability. Several clinical and radiological factors affect patient outcomes. This study aims to correlate patients' clinical and radiological profiles with acute EDH outcomes. Methods: A retrospective, single-centred, consecutive case series was conducted on the patients diagnosed with an acute EDH admitted to Tribhuvan University Teaching Hospital (TUTH) between May 2019 and April 2023. The modified Rankin scale (mRS) was used to assess the outcome. Univariate analysis and Kruskal-Wallis H test with Dunn-Bonferroni post-hoc test was conducted. Results: There were 107 patients diagnosed with EDH, of which 52.3% were less than 20 years old with male preponderance. Falls were the most common mechanism of injury (64.5%), and most cases were referred to, not brought directly. The majority had a GCS score greater than or equal to 13 (85%) at presentation, and only 5.5% had a GCS score less than or equal to 8. According to the mRS, most patients had favourable outcomes, with 88.7% having no significant disability and 11.3% having a slight disability. Conclusion: This case series is the largest and most recent report from Nepal and demonstrated that GCS, pupillary response, skull fracture, neurological symptoms, pre-hospital and intra-hospital delay, and management modalities are critical factors in determining the total hospital and ICU stay but did not have an impact on the mRS scores.

2.
World J Microbiol Biotechnol ; 40(6): 167, 2024 Apr 17.
Artículo en Inglés | MEDLINE | ID: mdl-38630176

RESUMEN

Carbapenem-resistant Acinetobacter baumannii poses a significant threat to public health globally, especially due to its ability to produce multiple carbapenemases, leading to treatment challenges. This study aimed to investigate the antibiotic resistance pattern of carbapenem-resistant A. baumannii isolates collected from different clinical settings in North East India, focusing on their genotypic and phenotypic resistance profiles. A total of 172 multidrug-resistant A. baumannii isolates were collected and subjected to antibiotic susceptibility test using the Kirby-Bauer disk diffusion method. Various phenotypic tests were performed to detect extended-spectrum ß-lactamase (ESBL), metallo-ß-lactamase (MBL), class C AmpC ß-lactamase (AmpC), and carbapenem hydrolyzing class D ß-lactamase (CHDL) production among the isolates. Overexpression of carbapenemase and cephalosporinase genes was detected among the isolates through both phenotypic and genotypic investigation. The antibiotic resistance profile of the isolates revealed that all were multidrug-resistant; 25% were extensively drug-resistant, 9.30% were pan-drug-resistant, whereas 91.27% were resistant to carbapenems. In the genotypic investigation, 80.81% of isolates were reported harbouring at least one metallo-ß-lactamase encoding gene, with blaNDM being the most prevalent at 70.34%, followed by blaIMP at 51.16% of isolates. Regarding class D carbapenemases, blaOXA-51 and blaOXA-23 genes were detected in all the tested isolates, while blaOXA-24, blaOXA-48, and blaOXA-58 were found in 15.11%, 6.97%, and 1.74% isolates respectively. Further analysis showed that 31.97% of isolates co-harboured ESBL, MBL, AmpC, and CHDL genes, while 31.39% of isolates co-harboured ESBL, MBL, and CHDL genes with or without ISAba1 leading to extensively drug-resistant or pan drug-resistant phenotypes. This study highlights the complex genetic profile and antimicrobial-resistant pattern of the isolates circulating in North East India, emphasizing the urgent need for effective infection control measures and the development of alternative treatment strategies to combat these challenging pathogens.


Asunto(s)
Acinetobacter baumannii , Acinetobacter baumannii/genética , beta-Lactamasas/genética , Genotipo , Carbapenémicos/farmacología , India
3.
Chin Neurosurg J ; 10(1): 9, 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38556895

RESUMEN

BACKGROUND: Cranial nerve palsy (CNP) is a common complication of traumatic brain injury (TBI). Despite a high incidence of TBI in Nepal (382 per 100,000), literature on the specific management and outcome of CNP is lacking. This study aimed to examine the outcomes of TBI patients involving single versus multiple CNP. METHODS: A retrospective chart review of 170 consecutive TBI patients admitted to the tertiary neurosurgical center in Nepal between April 2020 and April 2022 was conducted. Demographic, clinical, and etiological characteristics; imaging findings; and management strategies were recorded, compared, and analyzed using descriptive statistics. The Glasgow Outcome Scale Extended (GOSE) was used to measure the outcomes in two groups of patients (single and multiple CNP) at 3 months. RESULTS: Out of 250 eligible patients, 80 were excluded and CNP was noted in 29 (17.1%) of the remaining 170. The median age was 34.9 years, and falls (60.6%) were the most common cause of trauma. TBI severity was categorized based on GCS: mild (82.4%), moderate (15.9%), and severe (1.8%). Cranial nerve involvement was seen in 29 (17.05%) patients: single cranial nerve involvement in 26 (89.65%) and multiple nerve involvement in 3 (10.34%). The most common isolated cranial nerve involved was the oculomotor nerve (37.9%). CT findings revealed a maximum of skull fractures with no significant association between CNP and CT findings. CONCLUSIONS: CNP is a common consequence of TBI with the most common etiology being falls followed by RTA. Single CNP was more common than multiple CNP with no significant difference in the outcome in the 3-month GOSE score. Further research is needed to determine the burden of traumatic CNP and establish specific management guidelines for different types of CNP.

4.
Ann Med Surg (Lond) ; 86(3): 1476-1482, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38463098

RESUMEN

Background: Management strategies and outcomes of patients with posterior circulation aneurysms are varied due to uncertainty in the optimal treatment modality and limited experience of neurosurgeons. Data are scarce regarding patients with posterior circulation aneurysms from developing countries. This study aims to describe the clinical characteristics, management strategies and outcome of patients with these aneurysms treated microsurgically in an academic institute in Nepal. Methods: The clinical records of patients confirmed to have posterior circulation aneurysms treated microsurgically between July 2014 and July 2022 were retrospectively reviewed. Demographic and clinical characteristics, morphometric characteristics of aneurysms, management strategies, postoperative complications, and 1-year outcomes were described. Results: Out of 220 aneurysms in 190 patients, 20 were posterior circulation aneurysms. The median age of the patients was 43 (15-60) years. All were ruptured aneurysms. The admission Hunt and Hess grades of 18 (90%) patients were less than or equal to III. The posterior inferior cerebellar artery (8) was the commonest location. The postoperative complications rate was 20%, with the overall mortality of 10%. 80% of patients had a favourable outcome at 1-year follow-up. Conclusions: The patient characteristics and outcome are comparable with those described in the literature from other countries. With an individualized and careful selection strategy, our results are satisfactory despite fewer operations.

5.
JNMA J Nepal Med Assoc ; 62(270): 72-75, 2024 Feb 24.
Artículo en Inglés | MEDLINE | ID: mdl-38409991

RESUMEN

Introduction: The majority of trauma-related deaths occur in low- and middle-income countries; however, limited data exists in these settings related to injury types and severity. The prevalence of trauma similar to our setting was less estimated. This study aimed to find the prevalence of traumatic injury among patients presented to the department of emergency medicine of a tertiary care centre. Methods: This is a descriptive cross-sectional study conducted among patients presented to the Department of Emergency Medicine from 15 September 2021 to 14 September 2022. Ethical approval was taken from the Institutional Review Committee. World Health Organization trauma minimum data set, injury mechanism, types and patient disposition data were collected and injury severity scores were calculated. A convenience sampling method was used. The point estimate was calculated at a 95% Confidence Interval. Results: Among 47,825 patients, 1,524 (3.19%) (3.03-3.34, 95% Confidence Interval) patients presented with a traumatic injury. A total of 967 (63.45%) were males and had a median age of 30 years (Interquartile range: 25). Most injuries were caused by falls 650 (42.65%), followed by road traffic accidents 411 (26.97%). A majority had minor Injury Severity Scores 1280 (83.99%). Conclusions: The prevalence of traumatic injury among patients presenting to emergency was found to be lower than other studies done in similar settings. Keywords: emergency care; injuries and wounds; injury severity score; trauma unit.


Asunto(s)
Servicios Médicos de Urgencia , Medicina de Emergencia , Masculino , Humanos , Adulto , Femenino , Centros de Atención Terciaria , Estudios Transversales , Proyectos de Investigación
6.
J Clin Tuberc Other Mycobact Dis ; 34: 100414, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38304751

RESUMEN

Background: Central Nervous System Tuberculosis (CNS-TB) is a serious public health concern causing significant morbidity and mortality, especially in high TB burden countries. Despite the expanding research landscape of CNS-TB, there is no comprehensive map of this field. This work aims to (1) obtain a current and comprehensive overview of the CNS-TB research landscape, (2) investigate the intellectual and social structure of CNS-TB publications, and (3) detect geographical discrepancies in scientific production, highlighting regions requiring increased research focus. Methods: We conducted a bibliometric analysis on CNS-TB literature indexed in Web of Science from 2000 to 2022, evaluating 2130 articles. The dataset was analyzed in R for descriptive statistics. We used R-bibliometrix and VOSViewer for data visualization. Findings: Publication output grew annually at an average rate of 6·88%, driven primarily by India and China. International collaborations comprised 16·44% of total publications but contributed to 11 of the 15 top-cited papers. Additionally, we identified discrepancies of CNS-TB research in many low- and middleincome countries relative to their TB incidence. Interpretation: Our findings reveal a growing interest in CNS-TB research from China and India, countries with rapidly developing economies, high TB burdens, and a recent increase in research funding. Furthermore, we found that international collaborations are correlated with high impact and accessibility of CNS-TB research. Finally, we identified disparities in CNS-TB research in specific countries, particularly in many low- and middle-income countries, emphasizing the need for increased research focus in these regions.

7.
Ann Med Surg (Lond) ; 86(2): 1066-1071, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38333269

RESUMEN

Introduction: The incidence of chronic subdural haematoma (cSDH) is relatively high among the elderly population. Other known risk factors for cSDH include male sex, dependency on anti-platelet or anticoagulant medication, and chronic alcoholism. Although, the standard mode of treatment for cSDH is surgery, embolization of the middle meningeal artery (MMA), either upfront or as an adjunct to surgical evacuation can be used for the treatment of cSDH. Case presentation: The authors present a case of a 75-year-old female with prior history of posterior-lateral wall myocardial infarction (MI) eight years back presented to our centre with the chief complaints of a gradual onset of cough and headache for 2 months. The patient had no history of trauma, loss of consciousness, seizures, and vomiting. There was no history of diabetes, hypertension, pulmonary tuberculosis, and other chronic illness. Discussion: The concurrent use of anti- platelet drug during a surgical procedure can make the treatment challenging. Endovascular treatment can be a primary treatment modality in such situation. Conclusion: Elimination of blood supply by middle meningeal artery embolization is emerging as a safe, minimally invasive alternative to treat cSDH.

9.
Trans R Soc Trop Med Hyg ; 118(3): 206-222, 2024 Mar 04.
Artículo en Inglés | MEDLINE | ID: mdl-37972992

RESUMEN

Scrub typhus is one of the most neglected tropical diseases, a leading cause of acute undifferentiated febrile illness in areas of the 'tsutsugamushi triangle', diagnosed frequently in South Asian countries. The bacteria Orientia tsutsugamushi is the causative agent of the disease, which enters the human body through the bite of trombiculid mites (also known as chiggers) of the genus Leptotrombidium deliense. Diagnosis of the disease is challenging, as its early symptoms mimic other febrile illnesses like dengue, influenza and corona viruses. Lack of rapid, reliable and cost-effective diagnostic methods further complicates the identification process. Northeast India, a mountainous region with a predominantly rural tribal population, has witnessed a resurgence of scrub typhus cases in recent years. Various ecological factors, including rodent populations, habitat characteristics and climatic conditions, influence its prevalence. Entomological investigations have confirmed the abundance of vector mites, highlighting the importance of understanding their distribution and the probability of transmission of scrub typhus in the region. Proper diagnosis, awareness campaigns and behavioural interventions are essential for controlling scrub typhus outbreaks and reducing its impact on public health in Northeast India. Further research and community-based studies are necessary to accurately assess the disease burden and implement effective prevention strategies.


Asunto(s)
Orientia tsutsugamushi , Tifus por Ácaros , Trombiculidae , Animales , Humanos , Tifus por Ácaros/diagnóstico , Tifus por Ácaros/epidemiología , Tifus por Ácaros/microbiología , Trombiculidae/microbiología , Reservorios de Enfermedades , India/epidemiología
10.
World J Microbiol Biotechnol ; 40(1): 38, 2023 Dec 08.
Artículo en Inglés | MEDLINE | ID: mdl-38062277

RESUMEN

The production of extended-spectrum ß-lactamases (ESBLs) and AmpC ß-lactamases is the most common explanation of multidrug resistance in clinical isolates of Klebsiella spp. In the present study, a total of 160 isolates of Klebsiella spp. were procured from the DBT-NER project with ethical clearance no. DU/Dib/ECBHR(Human)/2021-22/02). These were collected from various health settings of Assam and identified as drug-resistant. The isolates were screened for antibiotic susceptibility and phenotypic tests were performed on multidrug resistant isolates to confirm ESBL and AmpC ß-lactamases production. The distribution pattern of ESBL and AmpC ß-lactamase genotype was investigated by polymerase chain reaction (PCR). The results showed that among 107 multidrug-resistant (MDR) isolates of Klebsiella spp., 67.28% of isolates were ESBL producers and 56.07% were potential AmpC producers. The PCR results revealed that blaCTX-M was the most prevalent ESBL genotype. Among the ESBL producers, 11.11% of isolates showed co-occurrence with plasmid-mediated AmpC ß lactamases genotype which indicated the high prevalence of ESBL and AmpC co-producers in K. pneumoniae and K. oxytoca, suggesting the possibility of serious public health concerns. Therefore, it is crucial to regularly monitor the spread of multidrug resistance among clinical isolates.


Asunto(s)
Proteínas Bacterianas , Klebsiella , Humanos , Klebsiella/genética , Prevalencia , Proteínas Bacterianas/genética , beta-Lactamasas/genética , Klebsiella pneumoniae/genética , Pruebas de Sensibilidad Microbiana , Antibacterianos/farmacología
11.
Ann Med Surg (Lond) ; 85(11): 5690-5694, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37915632

RESUMEN

Introduction and importance: A subgaleal abscess is a collection of pus in a potential space between the galea aponeurotica and pericranium. De novo subgaleal abscesses are a subset of subgaleal abscesses that develop in the absence of identifiable risk factors such as head trauma or procedures. However, these have rarely been reported in the literature. Case presentation: We present the case of a 65-year-old woman who presented with a headache for two and a half months, followed by swelling of the right parieto-occipital scalp. She denied any history of trauma, procedures, or anticoagulant use. A diagnosis of subgaleal abscess complicated by osteomyelitis and epidural abscess was made after obtaining a computed tomography of the head. Surgical treatment consisting of drainage, debridement, and craniectomy was performed, and the disease was successfully treated with a 6-week course of antibiotics. Clinical discussion: It is uncommon to have a de novo subgaleal abscess with spontaneous osteomyelitis and an epidural abscess as concurrent complications. The symptoms can be subtle, such as chronic headaches which can lead to delayed hospital visits. Computed tomography of the head is sufficient to make a definitive diagnosis. Appropriate antibiotic therapy and surgical intervention are necessary, which may encompass incision, drainage, debridement, and occasionally a craniectomy in order to achieve full resolution. Conclusions: One should be vigilant when evaluating scalp swelling for possible underlying abscesses. Prompt diagnosis and appropriate surgical treatment with adequate antibiotics are preferred treatment options for de novo subgaleal abscesses.

12.
Brain Spine ; 3: 101779, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38020989

RESUMEN

Introduction: The establishment of local neurosurgery training programs in Nepal has proven critical for the expansion of the discipline across the country. This paper aims to describe the evolution, current status, challenges, and future directions of academic neurosurgery in Nepal. Research question: What is the current status and international standing of academic neurosurgery in Nepal? Material and methods: Information related to growth and development in Nepal was obtained from universities and regulatory bodies in Nepal. Variables described are the current number of neurosurgeons, the number of neurosurgical centers and centers with accreditation for training, the description of existing training models, the number of graduates, and the contribution of Nepalese neurosurgeons to world literature. Results: Formal neurosurgical training started in Nepal in 1999. Of 67 hospitals with neurosurgical facilities, 10 (14.9%) are accredited. Three training models (MCh, NBMS, and FCPS) currently exist. Of 116 neurosurgeons currently practicing in the country, 47 (40.5%) are homegrown. The contribution of the Nepalese neurosurgical community to the world includes the training of the first two Maldivian neurosurgeons and an increasing presence in world neurosurgical literature. Conclusions: Although comparable to other countries with similar economies, Nepal still faces some challenges to the sustainability and further developments of Neurosurgery. Continued concerted efforts will help Nepalese neurosurgeons achieve the goal of securing self-reliance in neurosurgical education.

13.
Cureus ; 15(6): e40045, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37425532

RESUMEN

Background Electrocardiographic (ECG) changes are frequently reported findings in patients with subarachnoid hemorrhage (SAH). We conducted a retrospective descriptive study to assess the prevalence of electrocardiographic changes in patients with non-traumatic SAH.  Methods In this single-center retrospective cross-sectional study, ECG recordings of 45 patients who presented to Tribhuvan University Teaching Hospital in the year 2019 with SAH were collected and analyzed to detect any abnormalities.  Results In our study, 88.8% of patients had some form of ECG abnormality. The most common ECG abnormalities associated with SAH were QTc prolongation, T-wave abnormalities, and bradycardia, which were found, respectively, in 35.5%, 24.4%, and 24.4% of the patients. Other ECG changes we observed include ST depression, large U-waves, atrial fibrillation, and premature ventricular contractions. Conclusion Morphological and rhythm abnormalities are frequently observed in patients with SAH, which may cause diagnostic dilemmas and unnecessary workups. Further studies are required to evaluate their significance and correlate ECG changes with clinical outcomes.

14.
Indian J Med Ethics ; VIII(2): 103-108, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36880460

RESUMEN

Most biomedical journals now require authors to declare their conflicts of interest (COI), especially financial ones, before they accept the manuscript for submission. This study aims to examine the COI policies of Nepalese healthcare journals. The sample constituted journals indexed in Nepal Journals Online (NepJOL) as of June 2021. Of the 68 that met our inclusion criteria, 38(55.9%) journals endorsed the COI policy of the International Committee of Medical Journal Editors. Thirty-six (52.9%) journals had a policy for reporting the COI. Financial COI was the only type of COI mentioned. All journals in Nepal are encouraged to request the authors to declare the COI for better transparency.


Asunto(s)
Políticas Editoriales , Publicaciones Periódicas como Asunto , Humanos , Revelación , Nepal , Conflicto de Intereses , Estudios Transversales
15.
Injury ; 54(1): 93-99, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36243583

RESUMEN

BACKGROUND: Glasgow Coma Scale (GCS) is one of the most commonly used trauma scores and is a good predictor of outcome in traumatic brain injury (TBI) patients. There are other more complex scores with additional physiological parameters. Whether they discriminate better than GCS in predicting mortality in TBI patients is debatable. The aim of this study was to compare the discrimination of GCS with that of MGAP, GAP, RTS and KTS for 24-hour and 30-day in-hospital mortality in adult TBI patients, in a resource limited LMIC setting. METHOD: We analysed data from the multicentre, observational trauma cohort Towards Improved Trauma Care Outcome (TITCO) in India. We included all patients 18 years or older, admitted from the emergency department with TBI. The Area Under the Receiver Operating Characteristic (AUROC) curve was used to quantify and compare the discrimination of all scores: GCS; Revised Trauma Score (RTS); mechanism, GCS, age, systolic blood pressure (MGAP); GCS, age, systolic blood pressure (GAP) and Kampala Trauma Score (KTS) in the prediction of 24-hour and 30-day in-hospital mortality. RESULTS: A total of 3306 TBI patients were included in this study. The majority were within the GCS range 3-8. The commonest mechanism of injury was road traffic injuries [1907(58.0%)]. In-hospital mortality was 27.2% (899). There was no significant difference in discrimination in 24-hour in-hospital mortality when comparing GCS with MGAP and GAP. While GCS performed better than KTS, RTS performed better than GCS. For 30-day in-hospital mortality, GCS discriminated significantly better compared with KTS, but there was no significant difference when compared to MGAP and RTS. GAP discriminated significantly better when compared with GCS. CONCLUSION: This study shows that the discrimination of GCS is comparable to that of more complex trauma scores in predicting 24-hour and 30-day in-hospital mortality in adult TBI patients in a resource limited LMIC setting.


Asunto(s)
Lesiones Traumáticas del Encéfalo , Adulto , Humanos , Escala de Coma de Glasgow , Mortalidad Hospitalaria , Índices de Gravedad del Trauma , Estudios Prospectivos , Uganda , Lesiones Traumáticas del Encéfalo/diagnóstico , Hospitales Urbanos
16.
J Nepal Health Res Counc ; 20(2): 366-371, 2022 Nov 02.
Artículo en Inglés | MEDLINE | ID: mdl-36550714

RESUMEN

BACKGROUND: Due to multiple reasons, the faculty members in Nepal devote less than expected time to research and publication. This could be attributable to various challenges unique to each faculty member and their institution. The present study aims to evaluate the potential barriers to publication faced by the faculty of Maharajgunj Medical Campus, Kathmandu, Nepal. METHODS: This cross-sectional observational questionnaire-based study was conducted among the 139 faculty members representing various departments of MMC.  Results: The significant barriers were: difficult coordination (43.2%), the response time of the reviewer (48.2%), overburdened with work (39.6%), lack of funds for research (44.6%), limited submission skills (33.8%), poor writing skills (35.3%), difficulties in starting to write (42.4%), lack of time to submit a paper (43.9%), and family commitment (36.7%).  Conclusions: The findings of this study could be used to advocate for a prospective change in the work module to produce competent medical researchers generating high-quality publications.


Asunto(s)
Publicaciones Periódicas como Asunto , Humanos , Estudios Transversales , Estudios Prospectivos , Nepal , Docentes
17.
Asian J Neurosurg ; 17(2): 268-273, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36120613

RESUMEN

Objective The risk factors, management strategies, and outcomes of patients with multiple intracranial aneurysms (MIAs) are different compared with that of patients with a single aneurysm. Data are scarce regarding patients with MIAs from developing countries. The objective of this study was to describe the clinical characteristics, management strategies, and outcomes of patients treated microsurgically from Nepal. Methods The clinical records of patients confirmed to have MIAs and microsurgically clipped between July 2014 and December 2019 were retrospectively reviewed. Data on demographic and clinical characteristics, computed tomography findings, multiplicity and location of aneurysms, management strategies, and the 1-year outcome were abstracted and analyzed. Results Two hundred cerebral aneurysms were microsurgically clipped in 170 consecutive patients during the study period. Twenty-six (13.0%) patients harbored 60 aneurysms. The mean age of the patients was 58.5 (43-73) years. Smoking and hypertension were found in 20 (76.9%) and 16 (61.5%) patients, respectively. The majority of patients [17 (65.4%)] were in good grades at presentation. Twenty-one patients had two aneurysms, four had three aneurysms, and one patient had five aneurysms. The middle cerebral artery was the commonest (20) followed by distal anterior cerebral artery (14) and anterior communicating artery (13) involved in multiplicity. A single-stage surgery was performed on 17 patients. Serial clipping was performed in six patients. In three patients, a single aneurysm on the contralateral side was left untreated for various reasons. The favorable outcome was achieved in 23 (88.5%) patients whereas three (11.5%) patients had an unfavorable outcome. One patient died. Conclusion The demographic and clinical characteristics of patients in our series are comparable with those described in the published literature from other countries. With an individualized treatment strategy, an acceptable outcome can be achieved in the majority of the patients.

18.
Vaccines (Basel) ; 10(9)2022 Sep 05.
Artículo en Inglés | MEDLINE | ID: mdl-36146546

RESUMEN

With the ongoing COVID-19 pandemic, the emergence of the novel Omicron variant in November 2021 has created chaos around the world. Despite mass vaccination, Omicron has spread rapidly, raising concerns around the globe. The Omicron variant has a vast array of mutations, as compared to another variant of concern, with a total of 50 mutations, 30 of which are present on its spike protein alone. These mutations have led to immune escape and more transmissibility compared to other variants, including the Delta variant. A cluster of mutations (H655Y, N679K, and P681H) present in the Omicron spike protein could aid in transmission. Currently, no virus-specific data are available to predict the efficacy of the anti-viral and mAbs drugs. However, two monoclonal antibody drugs, Sotrovimab and Evusheld, are authorized for emergency use in COVID-19 patients. This virus is not fading away soon. The easiest solution and least expensive measure to fight against this pandemic are to follow the appropriate COVID-19 protocols. There is a need to strengthen the level of research for the development of potential vaccines and anti-viral drugs. It is also important to monitor and expand the genomic surveillance to keep track of the emergence of new variants, thus avoiding the spread of new diseases worldwide. This article highlights the emergence of the new SARS-CoV-2 variant of concern, Omicron (B.1.1.529), and the vast number of mutations in its protein. In addition, recent advancements in drugs approved by FDA to treat COVID patients have been listed and focused in this paper.

19.
J Exp Bot ; 73(20): 7083-7102, 2022 11 15.
Artículo en Inglés | MEDLINE | ID: mdl-35980748

RESUMEN

In nature, plants cope with adversity and have established strategies that recall past episodes and enable them to better cope with stress recurrences by establishing a 'stress memory'. Emerging evidence suggests that glucose (Glc) and target of rapamycin (TOR), central regulators of plant growth, have remarkable functions in stress adaptation. However, whether TOR modulates a stress memory response is so far unknown. Global transcriptome profiling identified that Glc, through TOR, regulates the expression of numerous genes involved in thermomemory. Priming of TOR overexpressors with mild heat showed better stress endurance, whereas TOR RNAi showed reduced thermomemory. This thermomemory is linked with histone methylation at specific sites of heat stress (HS) genes. TOR promotes long-term accumulation of H3K4me3 on thermomemory-associated gene promoters, even when transcription of those genes reverts to their basal level. Our results suggest that ARABIDOPSIS TRITHORAX 1 (ATX1), an H3K4 methyltransferase already shown to regulate H3K4me3 levels at the promoters of HS recovery genes, is a direct target of TOR signaling. The TOR-activating E2Fa binds to the promoter of ATX1 and regulates its expression, which ultimately regulates thermomemory. Collectively, our findings reveal a mechanistic framework in which Glc-TOR signaling determines the integration of stress and energy signaling to regulate thermomemory.


Asunto(s)
Proteínas de Arabidopsis , Arabidopsis , Arabidopsis/metabolismo , Proteínas de Arabidopsis/metabolismo , Glucosa/metabolismo , Sirolimus/metabolismo , Respuesta al Choque Térmico/fisiología , Epigénesis Genética , Regulación de la Expresión Génica de las Plantas
20.
J Nepal Health Res Counc ; 20(1): 202-206, 2022 Jun 02.
Artículo en Inglés | MEDLINE | ID: mdl-35945876

RESUMEN

BACKGROUND: Traumatic brain injury is common neurological emergency worldwide associated with high rates of morbidity and mortality. Marshall scoring system is one of the several scoring systems that uses initial computed tomography findings to predict outcome. This study aims to determine the role of Marshall scoring system in predicting early mortality in patients with Traumatic brain injury in Nepalese patient population. METHODS: Patients admitted with diagnosis of Traumatic brain injury between August 2017 and July 2018 in our institution were studied prospectively. Clinical status of patient was noted and computed tomography scan of head was interpreted according to Marshall scoring system. Patients were monitored during the hospital stay and in-hospital mortality was correlated with different components of Marshall scoring system at discharge. RESULTS: The most common cause of Traumatic brain injury was road traffic accident (45%). Severe Traumatic brain injury was noted in 17% of patients and commonest intracranial mass lesion was contusion (24%). Surgery was performed in 29% of patients. There was significant correlation between increase in Marshall score and mortality (p<0.001). Degree of midline shift (p<0.016), status of basal cisterns (p<0.001), and combination of mass lesions (p=0.005) were independent predictors of early mortality. CONCLUSIONS: Marshall scoring is highly reliable scoring system to predict early mortality in patients with Traumatic brain injury. Degree of midline shift, status of basal cisterns, and combination of mass lesions are independent parameters predicting early mortality in patients with traumatic brain injury.


Asunto(s)
Lesiones Traumáticas del Encéfalo , Encéfalo , Lesiones Traumáticas del Encéfalo/diagnóstico por imagen , Lesiones Traumáticas del Encéfalo/epidemiología , Humanos , Tiempo de Internación , Nepal/epidemiología , Tomografía Computarizada por Rayos X
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