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1.
J Oncol Pharm Pract ; : 10781552241232697, 2024 Feb 20.
Artigo em Inglês | MEDLINE | ID: mdl-38377985

RESUMO

BACKGROUND: Cancer care is posing immense challenges to healthcare systems globally. Advances in screening, monitoring, and treating cancer improved patient outcomes and survival rates yet amplified the disease burden. Multiple barriers might impede early access to innovative therapies. We thoroughly examined the current challenges in oncology medication access in Saudi Arabia and provided consensus recommendations to revitalize the process. METHODS: A focus group discussion was conducted. Expert healthcare providers (pharmacists and physicians) were invited to participate based on prespecified criteria. The research team conducted a qualitative analysis of the discussion to identify themes and formulate recommendations. RESULTS: Fourteen experts were equally distributed into two groups, limiting the number in each group to 7. Pharmacists were 12 (∼86%), and physicians were 2 (∼14%). Ten were practicing in governmental hospitals, four representing different sectors; regulatory bodies, including Ministry of Health, National Unified Procurement Company, and Saudi Food and Drug Authority. Five themes were identified: national cancer burden, local data availability, pharmacoeconomic evaluation, patients reported outcomes, administration, and procurement. Consensus recommendations were formulated to optimize the formulary management process, enabling informed decision-making and facilitating early medication access for cancer patients. CONCLUSIONS: The formulary management process can be enhanced by addressing the national cancer burden, promoting local data availability, conducting pharmacoeconomic evaluations, focusing on patient outcomes, and improving administration and procurement procedures. Implementing these recommendations can improve access to oncology medications and improve patient care outcomes in Saudi Arabia.

2.
Clin Otolaryngol ; 48(2): 139-150, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36536598

RESUMO

OBJECTIVES: To examine the efficacy of prophylactic desmopressin versus placebo among patients undergoing functional endoscopic sinus surgery (FESS). DESIGN: Systematic review and meta-analysis of randomised controlled trials (RCTs). SETTING: The Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, Embase, Scopus, and Web of Science databases were screened from inception until 18 March 2022. PARTICIPANTS: Patients undergoing FESS. MAIN OUTCOME MEASURES: Primary efficacy endpoints comprised intraoperative blood loss, visual clarity, and operation time. Secondary endpoints comprised side effects. The efficacy endpoints were summarised as risk ratio (RR) or mean difference (MD) with 95% confidence interval (CI). RESULTS: Five RCTs comprising 380 patients (desmopressin = 191 patients and placebo = 189 patients) were included. Collectively, the included RCTs had an overall low risk of bias. The pooled results showed that the mean intraoperative blood loss (n = 5 RCTs, MD = -37.97 ml, 95% CI [-56.97, -18.96], p < .001), 5-point Boezaart scores (n = 2 RCTs, MD = -.97, 95% CI [-1.21, -.74], p < .001), and 10-point Boezaart scores (n = 2 RCTs, MD = -3.00, 95% CI [-3.61, -2.40], p < .001) were significantly reduced in favour of the desmopressin group compared with the placebo group. Operation time did not significantly differ between both groups (n = 5 RCTs, MD = -3.73 min, 95% CI [-14.65, 7.18], p = .50). No patient in both groups developed symptomatic hyponatremia (n = 3 RCTs, 194 patients) or thromboembolic events (n = 2 RCTs, 150 patients). CONCLUSIONS: Among patients undergoing FESS, prophylactic administration of desmopressin does not correlate with significant clinical benefits. Data on safety is limited. Future research may explore the synergistic antihaemorrhagic efficacy and safety of tranexamic acid (TXA) plus desmopressin versus TXA alone among patients undergoing FESS.


Assuntos
Hemostáticos , Ácido Tranexâmico , Humanos , Desamino Arginina Vasopressina/uso terapêutico , Perda Sanguínea Cirúrgica/prevenção & controle , Hemostáticos/uso terapêutico , Ácido Tranexâmico/uso terapêutico , Ensaios Clínicos Controlados Aleatórios como Assunto
3.
Saudi Pharm J ; 31(12): 101840, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37961071

RESUMO

Introduction: Formulary drug list is a continually updated list of medications routinely stocked by hospitals and other healthcare facilities and deemed effective, safe, and cost saving. Non-formulary drug (NFD) refers to medications not on the formulary, due to cost or lack of clinical data. This study aimed to examine the processing of NFD requests by oncology providers (OPs) in Saudi Arabia. Method: A cross-sectional survey in Saudi oncology centers gathered perspectives of healthcare practitioners, mainly oncology pharmacists and physicians, on NFDs and request processes, aiming to understand variations, reasons for NFDs, and suggestions for an improved, unified NFDs request algorithm. Result: A total of 93 physicians and pharmacists responded, 57 % were pharmacists, 43 % were physicians, and 94.6 % worked in the governmental sector. Around 31.2 % reported that it takes one week to receive a decision on their NFD request, while 28 % reported it takes two weeks to one month. Furthermore, 35.5 % of participants reported that the complete NFD process, from the initial order placement to the receipt of medications, spans a duration of 2-4 months, while 8.6 % noted a longer duration exceeding six months. The participants reported that the most common obstacles while requesting NFD were procurement delays and lengthy processing times. Additionally, 26.9 % agreed that formulary restrictions hindered medical care and 40.3 % reported delays in patient care. While 33.8 % were forced to use fewer effective options, and 22.1 % referred patients to palliative care. Conclusion: The current practice of NFDs has negative consequences on cancer patient outcomes due to delays in patient care or the use of less effective drugs. Thus, we recommend having a national NFD access program.

4.
BMC Pregnancy Childbirth ; 19(1): 394, 2019 Oct 31.
Artigo em Inglês | MEDLINE | ID: mdl-31672129

RESUMO

BACKGROUND: The management of Acute Myeloid Leukemia (AML) during pregnancy remains challenging as both the maternal and fetal outcomes should be considered. Several reports suggested that chemotherapy can be administered safely during the second and third trimester of pregnancy. However, the use of 5-azacytidine presents limitation due to lack of data. CASE PRESENTATION: A 28-years-old woman in the 26th week of gestation diagnosed with FLT3/ITD-mutated AML, complete remission was induced by Daunorubicin and Cytarabine, and subsequently with 5-azacytidine (75 mg/m2 daily for 7 days) with no fetal hematological or toxicity issues. Fetal ultrasound showed no aberrant morphology. Fetal size below the 5th percentile with normal umbilical artery dopplers, normal middle cerebral artery dopplers and ductus venosus doppler. Three weeks post 5-azacytidine, the team determined the most appropriate time for delivery after balancing the risks of prematurity and prevention of disease relapse since patient in hematological remission. The patient underwent elective lower segment caesarian section and had a baby girl delivered at 35 weeks of gestation weighing 1670 g without apparent anomalies. CONCLUSION: Treatment using 5-azacytadine during last trimester of pregnancy resulted in no major fetal and maternal complications. These findings concluded that 5-azacytadine during the third trimester of pregnancy seems to be safe however, potential risks of this agent should be considered.


Assuntos
Antimetabólitos Antineoplásicos/uso terapêutico , Azacitidina/uso terapêutico , Leucemia Mieloide Aguda/tratamento farmacológico , Complicações Neoplásicas na Gravidez/tratamento farmacológico , Adulto , Cesárea , Feminino , Humanos , Quimioterapia de Indução , Recém-Nascido , Nascido Vivo , Gravidez , Terceiro Trimestre da Gravidez
5.
Am J Ther ; 25(3): e349-e356, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29722737

RESUMO

BACKGROUND: Small cell lung cancer (SCLC) accounts for approximately 13% of all lung cancer diagnoses each year. SCLC is characterized by a rapid doubling time, early metastatic spread, and an unfavorable prognosis overall. AREAS OF UNCERTAINTY: Most patients with SCLC will respond to initial treatment; however, the majority will experience a disease recurrence and response to second-line therapies is poor. Immune checkpoint inhibitors may be an option given the success in other diseases. DATA SOURCES: A literature search was conducted using Medline (1946-July week 1, 2017) and Embase (1996-2017 week 28) with the search terms small cell lung cancer combined with nivolumab or ipilimumab or pembrolizumab or atezolizumab or tremelimumab or durvalumab. Five clinical trials, including extended follow-up for 2, that evaluated immune checkpoint inhibitors in limited stage or extensive stage SCLC were included. RESULTS: In 2 phase 2 trials, ipilimumab was added to upfront chemotherapy. In both trials, an improvement in progression-free survival was seen. Toxicity, when combined with a platinum and etoposide, was significant. In a confirmatory phase 3 trial, ipilimumab did not prolong overall survival when added to first-line chemotherapy. Overall, response rates were similar between the placebo and ipilimumab groups. A phase 1/2 trial evaluated nivolumab alone or in combination with ipilimumab in recurrent SCLC. Results revealed that nivolumab monotherapy and the combination of nivolumab and ipilimumab were relatively safe and had antitumor activity. Pembrolizumab has been evaluated in a multicohort, phase 1b trial. Preliminary data showed a durable response in the second-line setting. CONCLUSION: Given the lack of overall survival data and significant toxicity associated with the combination of ipilimumab with first-line chemotherapy, this treatment is not a reasonable option at this time. Nivolumab alone or in combination with ipilimumab is a valid option for recurrent SCLC.


Assuntos
Antineoplásicos Imunológicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Receptores Coestimuladores e Inibidores de Linfócitos T/antagonistas & inibidores , Neoplasias Pulmonares/tratamento farmacológico , Carcinoma de Pequenas Células do Pulmão/tratamento farmacológico , Antineoplásicos Imunológicos/normas , Protocolos de Quimioterapia Combinada Antineoplásica/normas , Ensaios Clínicos como Assunto , Intervalo Livre de Doença , Humanos , Neoplasias Pulmonares/imunologia , Neoplasias Pulmonares/mortalidade , Guias de Prática Clínica como Assunto , Prognóstico , Carcinoma de Pequenas Células do Pulmão/imunologia , Carcinoma de Pequenas Células do Pulmão/mortalidade , Resultado do Tratamento
6.
J Asthma ; 54(2): 202-209, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-27284849

RESUMO

OBJECTIVES: To explore potential gender differences in the factors associated with asthma-specific quality of life (AQL). METHODS: A cross-sectional study of consecutive series of adult patients attending primary care centers at three major hospitals in Riyadh, Saudi Arabia, was performed. AQL was measured using a standardized version of the AQL questionnaire (min = 1, max = 7), with higher scores indicating a better AQL. Multiple linear regression analysis was performed. RESULTS: The mean AQL was 4.3 (standard deviation [SD] = 1.5) for males and 4.0 (SD = 1.3) for females (p = 0.113). With each unit increase in asthma control, the AQL improved by 0.19 points (95% confidence interval [CI] = 0.14-0.23) in men and by 0.21 points (95% CI = 0.16-0.25) in women. Daily tobacco smoking was associated with a 0.72 point (95% CI = 0.14-1.30) decrease in the AQL among males. Women who had a household member who smoked inside the house had a significantly lower AQL (B = -0.59, 95% CI = -1.0 - -0.19). A monthly household income of 25,000 Saudi Riyals or more was associated with a better AQL among men (B = 0.51, 95% CI = 0.01-1.01), whereas being employed exhibited a protective effect in women (B = 0.48, 95% CI = 0.11-0.84). Higher levels of perceived asthma severity were associated with better AQL in women (B = 0.82, 95% CI = 0.36-1.28). CONCLUSIONS: Our findings revealed gender-specific differences in the correlates of AQL in Saudi Arabia, particularly in tobacco exposure, socio-economic factors and perceived asthma severity.


Assuntos
Asma/epidemiologia , Asma/psicologia , Qualidade de Vida , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Percepção , Arábia Saudita/epidemiologia , Fatores Sexuais , Fumar/epidemiologia , Fatores Socioeconômicos , Poluição por Fumaça de Tabaco/estatística & dados numéricos
7.
Front Plant Sci ; 15: 1397337, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38835859

RESUMO

Currently, the control of rhizosphere selection on farms has been applied to achieve enhancements in phenotype, extending from improvements in single root characteristics to the dynamic nature of entire crop systems. Several specific signals, regulatory elements, and mechanisms that regulate the initiation, morphogenesis, and growth of new lateral or adventitious root species have been identified, but much more work remains. Today, phenotyping technology drives the development of root traits. Available models for simulation can support all phenotyping decisions (root trait improvement). The detection and use of markers for quantitative trait loci (QTLs) are effective for enhancing selection efficiency and increasing reproductive genetic gains. Furthermore, QTLs may help wheat breeders select the appropriate roots for efficient nutrient acquisition. Single-nucleotide polymorphisms (SNPs) or alignment of sequences can only be helpful when they are associated with phenotypic variation for root development and elongation. Here, we focus on major root development processes and detail important new insights recently generated regarding the wheat genome. The first part of this review paper discusses the root morphology, apical meristem, transcriptional control, auxin distribution, phenotyping of the root system, and simulation models. In the second part, the molecular genetics of the wheat root system, SNPs, TFs, and QTLs related to root development as well as genome editing (GE) techniques for the improvement of root traits in wheat are discussed. Finally, we address the effect of omics strategies on root biomass production and summarize existing knowledge of the main molecular mechanisms involved in wheat root development and elongation.

8.
Hematology ; 29(1): 2296809, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38149670

RESUMO

Venetoclax is a selective inhibitor of the anti-apoptotic protein B-cell lymphoma 2 (BCL2), as a targeted therapy for multiple myeloma (MM) patients. It was initially approved by the United States Food and Drug Administration for the treatment of chronic lymphocytic leukemia in April 2016 and later for acute myeloid leukemia in October 2020. However, venetoclax is used as an off-label in a subset group of relapsed and refractory multiple myeloma (RRMM) patients with the presence of translocation t(11;14). Preclinical and clinical studies have highlighted the potential of venetoclax in the management of MM patients, with a specific focus on t(11;14) as a predictive biomarker for initiating venetoclax-based treatment. Later, several studies in RRMM patients that used venetoclax in combination with dexamethasone or/and proteasome inhibitors have shown promising results, in which management guidelines have included venetoclax as one of the options to treat MM patients. Hence, this review focuses on the use of venetoclax in RRMM, clinical efficacy, safety, dosing strategies, and predictive biomarkers for initiating venetoclax. Additionally, we discuss ongoing studies that are investigating different combination of venetoclax regimens in MM patients.


Assuntos
Leucemia Linfocítica Crônica de Células B , Mieloma Múltiplo , Humanos , Mieloma Múltiplo/tratamento farmacológico , Mieloma Múltiplo/genética , Compostos Bicíclicos Heterocíclicos com Pontes/uso terapêutico , Compostos Bicíclicos Heterocíclicos com Pontes/farmacologia , Sulfonamidas/uso terapêutico , Sulfonamidas/farmacologia , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos
9.
Ther Innov Regul Sci ; 58(4): 678-686, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38536660

RESUMO

INTRODUCTION: Pharmaceutical regulation on a global scale is a complex process, with regulatory bodies overseeing various aspects, including licensing, registration, manufacturing, marketing, and labeling. Among these, the USFDA plays a crucial role in upholding public health. The pharmaceutical industry contributes significantly to well-being by developing and distributing therapeutic agents. The journey of evaluating new pharmaceuticals involves meticulous examination through several phases, from safety and efficacy assessments to toxicity evaluation. Drug approval involves submitting New Drug Applications (NDAs) to regulatory agencies like the USFDA and EMA. However, disparities in durations contribute to the phenomenon known as "drug lag." This lag refers to delays in a pharmaceutical product's availability in one market compared to another. Addressing this issue is crucial, given its impact on patient access to treatments. METHOD: This study aims to analyze the extent of drug lag, focusing on newly approved oncology targeted therapies in Saudi Arabia, the United States, and the European Union. Data for cancer treatments authorized by the USFDA, EMA, and SFDA from January 1, 1997, to December 31, 2022, were collected from regulatory agency websites. The data sources included authorization letters, prescription information, and evaluation documents. We conducted a comparative assessment of drug lag for approved oncology targeted therapies between Saudi Arabia, the US, and the EU. RESULT: Our analysis identified 135 newly approved oncology-targeted drugs within the specified timeframe. Of these, 71 received approval in all three regions, while disparities were evident in others. The USFDA consistently had the highest number of approved drugs, with 98.5% of drugs initially approved there. In contrast, Saudi Arabia had the lowest number of approved drugs and a significantly longer median drug lag, indicating substantial delays in drug availability. CONCLUSION: This study highlights the significance of mitigating drug lag to enhance global healthcare outcomes and patient access to innovative therapies. Further research and collaborative efforts are essential to bridging these disparities and promoting equitable healthcare worldwide.


Assuntos
Antineoplásicos , Aprovação de Drogas , União Europeia , Estados Unidos , Arábia Saudita , Humanos , Antineoplásicos/uso terapêutico , Neoplasias/tratamento farmacológico , Fatores de Tempo
10.
Plants (Basel) ; 12(3)2023 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-36771547

RESUMO

Controlled Environment Agriculture (CEA) is a method of increasing crop productivity per unit area of cultivated land by extending crop production into the vertical dimension and enabling year-round production. Light emitting diodes (LED) are frequently used as the source of light energy in CEA systems and light is commonly the limiting factor for production under CEA conditions. In the current study, the impact of different spectra was compared with the use of white LED light. The various spectra were white; white supplemented with ultraviolet b for a week before harvest; three combinations of red/blue lights (red 660 nm with blue 450 nm at 1:1 ratio; red 660 nm with blue 435 nm 1:1 ratio; red 660 nm with blue at mix of 450 nm and 435 nm 1:1 ratio); and red/blue supplemented with green and far red (B/R/G/FR, ratio: 1:1:0.07:0.64). The growth, yield, physiological and chemical profiles of two varieties of lettuce, Carmoli (red) and Locarno (green), responded differently to the various light treatments. However, white (control) appeared to perform the best overall. The B/R/G/FR promoted the growth and yield parameters in both varieties of lettuce but also increased the level of stem elongation (bolting), which impacted the quality of grown plants. There was no clear relationship between the various physiological parameters measured and final marketable yield in either variety. Various chemical traits, including vitamin C content, total phenol content, soluble sugar and total soluble solid contents responded differently to the light treatments, where each targeted chemical was promoted by a specific light spectrum. This highlights the importance of designing the light spectra in accordance with the intended outcomes. The current study has value in the field of commercial vertical farming of lettuce under CEA conditions.

11.
Cureus ; 15(2): e34780, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36909037

RESUMO

Background Upon graduation, pharmacy students are expected to possess a diverse array of knowledge, skills, and attitudes. A subject-specific boot camp may support bridging the gap between the information and skills gained during clerkships, courses required for pharmacy school after graduation, and skills needed for the job market, as well as the gap between pharmacy school and residency. This research aimed to determine whether an integrated boot camp increased Advanced Pharmacy Practice Experience (APPE) student self-confidence and enhanced students' knowledge in oncology pharmacy. Method APPE students who attended the annual meeting of the Saudi Oncology Pharmacy Assembly (SOPA)/International Society of Oncology Pharmacy Practitioners (ISOPP) Regional Conference 2021 were voluntarily enrolled in a three-hour oncology-focused boot camp consisting of interactive lectures. Pre- and post-intervention examinations were used to evaluate student learning outcomes and their experience feedback. Result Of 118 students who attended the boot camp, 80 students who met the criteria were included in the study. The pre- and post-intervention examinations were completed by the 80 APPE students. The pre-intervention test results (mean: 66%, standard deviation (SD): 16%) increased by 21.5% after the boot camp (mean: 87.5%, SD: 12%, p = 0.001). Students scored better on each of the 10 test questions, with nine questions demonstrating a statistically significant result. Conclusion The results of this research showed that interns who participated in an oncology boot camp had a higher level of knowledge and confidence in applying key oncology concepts. Interns were satisfied with the chance to engage in the activity, and they agreed to adding boot camps to future conferences would be valuable. This research shows that it is possible to hold a transitional boot camp during conferences to better prepare students for their fields of study and increase their participation in oncology conferences.

12.
Cureus ; 14(6): e25748, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35812568

RESUMO

Prinzmetal angina, also known as vasospastic angina, is defined as an intermittent focal or diffuse coronary artery narrowing, which is often associated with transient ST-segment elevation on an electrocardiogram. Also, it could be associated with an atherosclerotic lesion at the site of the spasm. Vasospastic angina might be induced by medications, most commonly with cocaine and other examples which include catecholamines such as epinephrine, norepinephrine, isoproterenol, dopamine, and dobutamine. Parasympathomimetic agents include acetylcholine, methacholine, and pilocarpine. It is rarely caused by tacrolimus. The clinical evaluation includes an electrocardiogram and echocardiogram. The confirmed diagnosis is done by coronary angiography. Cardiac catheterization is indicated in such cases to rule out coronary artery disease.

13.
Hematol Oncol Stem Cell Ther ; 15(1): 1-6, 2022 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-34153229

RESUMO

The management of immune thrombocytopenic purpura (ITP) involves several lines of therapy such as corticosteroids and intravenous immunoglobulin. With the emergence of novel therapies such as thrombopoietin receptor agonists (TPO-RAs), there has been a shift in treatment modalities. Eltrombopag and romiplostim have proven to be effective in the management of ITP through clinical studies, but their safety in pregnancy remains uncertain. The purpose of the study is to review the literature to evaluate the safety of TPO-RAs in pregnant women. Ten case reports and a cohort study pertaining to the use of TPO-RAs in pregnancy were obtained. According to the reported cases and prospective study, the use of eltrombopag and romiplostim appears to be relatively safe in the first, second, and third trimesters, as there were no reported congenital malformations. Low fetal birth weight has been observed following the administration of eltrombopag during the second trimester, whereas preterm birth has occurred following the administration of eltrombopag in the third trimester. Eltrombopag and romiplostim seem relatively safe. Further studies are necessary to clarify their safety during pregnancy.


Assuntos
Nascimento Prematuro , Púrpura Trombocitopênica Idiopática , Gravidez , Recém-Nascido , Feminino , Humanos , Receptores de Trombopoetina/agonistas , Receptores de Trombopoetina/uso terapêutico , Estudos de Coortes , Estudos Prospectivos , Nascimento Prematuro/tratamento farmacológico , Trombopoetina/uso terapêutico , Púrpura Trombocitopênica Idiopática/tratamento farmacológico
14.
Cureus ; 14(11): e31743, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36569668

RESUMO

Objective The objective of this study is to estimate the prevalence of olfactory and gustative dysfunctions (OGD) and analyze their pattern and psychosocial impact among COVID-19 patients. Method A cross-sectional study was conducted among 194 confirmed COVID-19 cases at Al-Noor Specialist Hospital between 1 September 2020 and 30 September 2021. A questionnaire was translated and modified from another study to collect the baseline demographic data and medical history; characterization of smell and taste loss separately, including timing, level, practices or treatment used to restore, recovery, and symptom duration; and the psychological impact of OGD using six items to explore the multidimensional impact, such as daily activity, job performance, and social life. A four-point Likert-type agreement scale was used, and an impact score was calculated. Result As high as 97.4% and 94.8% of the participants declared having experienced a certain level of olfactory and gustative dysfunction, respectively. In the majority of these cases, the dysfunction occurred after the acute phase of the disease and persisted less than one month after onset. Social life (78.4%), job performance (64.4%), and daily life activities (42.8%) were the most frequently impacted dimensions, and 32% of the participants were deemed to have experienced a high psychosocial impact. Younger participants, females, and certain job categories were significantly more impacted than their counterparts. Conclusion OGDs are highly frequent in COVID-19 patients. They are described to be relatively severe and have frequent psychosocial impacts, notably in females and the younger age category. Further research is warranted to determine efficacious preventive and management strategies in order to prevent their long-term impact on wellbeing.

15.
Hematology ; 27(1): 1259-1262, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36448578

RESUMO

OBJECTIVE: We herein describe two cases of de novo lymphoid blastic transformation in patients with no history of chronic-phase chronic myeloid leukemia (CP-CML), both of whom were labeled initially as Philadelphia positive B-Acute Lymphoblastic Leukemia (B-ALL). METHODS: The first patient was an 18-year-old male who presented with subjective fever, intentional weight loss, generalized fatigue, and headache. Investigations showed leukocytosis (312 × 10^3/ul), thrombocytopenia and anemia. Flowcytometry was consistent with B-ALL, with aberrant expression of CD13 and CD33. He was found to be positive for BCR::ABL by FISH, and karyotype confirmed the presence of the Philadelphia chromosome. He received a pediatric-inspired regimen and achieved remission with negative measurable residual disease (MRD) by flowcytometry, however with persistent cytogenetic abnormality using FISH for BCR::ABL. FISH abnormality was confirmed to be in the myeloid compartment using myeloid segregated FISH, reclassifying the disease to de novo lymphoid blastic phase CML. The second patient was a 52-year-old male who presented with fever and shortness of breath. Bilateral cervical lymphadenopathy and hepatosplenomegaly were identified on examination, and investigations showed leukocytosis (371 × 10^3/ul), anemia, and thrombocytopenia. BCR::ABL rearrangement was identified by FISH, molecular testing, and confirmed with karyotype. He was treated with Mini-CVD and Ponatinib, achieved complete remission with negative MRD by flow cytometry, however molecular studies showed BCR-ABL1 level at 58% IS indicating a persistent cytogenetic abnormality. RESULTS: De novo lymphoid blastic-phase CML can therefore be difficult to differentiate from Philadelphia positive B-ALL due to their overlapping clinical and laboratory picture, implying the need to do myeloid compartment evaluation at the time of diagnosis. CONCLUSION: With recent progress in the treatment of Philadelphia positive B-ALL, including the role of transplant with the use of novel agents, a better characterization of this disease entity in retrospective and prospective trials is warranted.


Assuntos
Leucemia-Linfoma Linfoblástico de Células Precursoras , Trombocitopenia , Humanos , Masculino , Leucocitose , Estudos Prospectivos , Estudos Retrospectivos , Crise Blástica , Neoplasia Residual , Aberrações Cromossômicas
16.
Saudi J Biol Sci ; 28(7): 4000-4004, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34220257

RESUMO

Spring wheat (Triticum aestivum) is a staple food providing sources of essential proteins for human. In fact, gene expressions of wheat play an important role in growth and productivity that are affected by drought stress. The objective of this work focused on analysis gene feature on spring wheat represented by nucleotide and gene expressions under drought stress. It was found that the higher codon adaptation index was in both wheat root and L-galactono-1, 4-lactone dehydrogenase. It was also found that guanine and cytosine content were high (55.56%) in wheat root. Whereas, guanine and cytosine content were low (41.28%) in L-galactono-1, 4-lactone dehydrogenase. Moreover, the higher relative synonymous codon usage value was observed in codon CAA (1.20), GAA (1.33), GAT (1.00), and ATG (1.00) in wheat root and thus about 62.95% of the total variation in relative synonymous codon was explained by principal component analysis. Additionally, high averages frequency number of codon were (above 15.76) in Met, Lys, Ala, Gly, Phe, Asp, Glu, His, and Tyr; whereas, low averages were in remaining amino acids and majority (90%) of modified relative codon bias values was between 0.40 and 0.90. Shortly, calculations and analysis of codon usage pattern under drought stress would help for genetic engineering, molecular evolution, and gene prediction in wheat studies for developing varieties that associate with drought tolerance.

17.
Saudi J Biol Sci ; 28(2): 1433-1444, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33613071

RESUMO

Wheat is an important cereal crop, and its significance is more due to compete for dietary products in the world. Many constraints facing by the wheat crop due to environmental hazardous, biotic, abiotic stress and heavy matters factors, as a result, decrease the yield. Understanding the molecular mechanism related to these factors is significant to figure out genes regulate under specific conditions. Classical breeding using hybridization has been used to increase the yield but not prospered at the desired level. With the development of newly emerging technologies in biological sciences i.e., marker assisted breeding (MAB), QTLs mapping, mutation breeding, proteomics, metabolomics, next-generation sequencing (NGS), RNA_sequencing, transcriptomics, differential expression genes (DEGs), computational resources and genome editing techniques i.e. (CRISPR cas9; Cas13) advances in the field of omics. Application of new breeding technologies develops huge data; considerable development is needed in bioinformatics science to interpret the data. However, combined omics application to address physiological questions linked with genetics is still a challenge. Moreover, viroid discovery opens the new direction for research, economics, and target specification. Comparative genomics important to figure gene of interest processes are further discussed about considering the identification of genes, genomic loci, and biochemical pathways linked with stress resilience in wheat. Furthermore, this review extensively discussed the omics approaches and their effective use. Integrated plant omics technologies have been used viroid genomes associated with CRISPR and CRISPR-associated Cas13a proteins system used for engineering of viroid interference along with high-performance multidimensional phenotyping as a significant limiting factor for increasing stress resistance in wheat.

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