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1.
Preprint em Inglês | bioRxiv | ID: ppbiorxiv-098616

RESUMO

The SARS-CoV-2 pandemic, starting in 2019, has challenged the speed at which labs perform science, ranging from discoveries of the viral composition to handling health outcomes in humans. The small ~30kb single-stranded RNA genome of Coronaviruses makes them adept at cross species spread and drift, increasing their probability to cause pandemics. However, this small genome also allows for a robust understanding of all proteins coded by the virus. We employed protein modeling, molecular dynamic simulations, evolutionary mapping, and 3D printing to gain a full proteome and dynamicome understanding of SARS-CoV-2. The Viral Integrated Structural Evolution Dynamic Database (VIStEDD) has been established (prokoplab.com/vistedd), opening future discoveries and educational usage. In this paper, we highlight VIStEDD usage for nsp6, Nucleocapsid (N), and Spike (S) surface glycoprotein. For both nsp6 and N we reveal highly conserved surface amino acids that likely drive protein-protein interactions. In characterizing viral S protein, we have developed a quantitative dynamics cross correlation matrix insight into interaction with the ACE2/SLC6A19 dimer complex. From this quantitative matrix, we elucidated 47 potential functional missense variants from population genomic databases within ACE2/SLC6A19/TMPRSS2, warranting genomic enrichment analyses in SARS-CoV-2 patients. Moreover, these variants have ultralow frequency, but can exist as hemizygous in males for ACE2, which falls on the X-chromosome. Two noncoding variants (rs4646118 and rs143185769) found in ~9% of African descent individuals for ACE2 may regulate expression and be related to increased susceptibility of African Americans to SARS-CoV-2. This powerful database of SARS-CoV-2 can aid in research progress in the ongoing pandemic.

2.
Chinese Medical Journal ; (24): 1264-1271, 2019.
Artigo em Inglês | WPRIM (Pacífico Ocidental) | ID: wpr-800841

RESUMO

Background@#In China, the prevalence of allergic rhinitis (AR) and asthma has increased in the past decade. As these two diseases frequently coexist, the Asia-Pacific Survey of Physicians on Asthma and Allergic Rhinitis (ASPAIR) study aimed to assess physicians’ beliefs and treatment patterns of coexistent asthma-AR across six Asian countries. This analysis presents the results from China.@*Methods@#The 200 hospital-based general physicians and pediatricians were interviewed from five cities in China. Physicians were questioned in-person about their knowledge, beliefs and management practices for patients with coexistent asthma-AR.@*Results@#Approximately 70% of the physicians interviewed routinely evaluated their patients with asthma or AR for signs of coexistent disease. While the majority of physicians (>90% of physicians) recognized the increased burden of coexistent asthma-AR vs. one condition alone and that coexistent disease requires additional treatment, most physicians (96%) also believed that patients with coexistent asthma-AR were well managed if either condition alone improved. Similarly, although 71% of physicians selected a combination of intranasal and inhaled corticosteroids as their preferred treatment for coexistent asthma-AR, in line with treatment guidelines, two fifths of physicians indicated that treatment for coexistent disease requires too much medication and that their patients prefer oral medications and a third of physicians believed that corticosteroids should be delayed in children.@*Conclusions@#This survey demonstrates that physicians interviewed in China have a broad understanding of coexistent asthma-AR and its impact on patients. A holistic approach to patient management with informed decisions regarding patients’ overall treatment will benefit patients who suffer from coexistent disease.

3.
Asia Pacific Allergy ; (4): e24-2019.
Artigo em Inglês | WPRIM (Pacífico Ocidental) | ID: wpr-750187

RESUMO

BACKGROUND: Underdiagnosis and undertreatment of allergic rhinitis (AR) in patients with asthma can worsen treatment outcomes. There is limited evidence of clinical practices for management of coexistent AR-asthma in Thailand. METHODS: A multicountry, cross-sectional study (Asia-pacific Survey of Physicians on Asthma and allergic Rhinitis) to evaluate physician perceptions and management practices related to AR-asthma overlap in 6 Asian countries was conducted. For Thailand specifically, AR-asthma linkage questionnaires were developed and translated to Thailaland. General physicians (GPs) or pediatricians, randomly selected from hospitals in urban cities, routinely treating >10 asthma patients/month were interviewed. Here we present the results for Thailand. RESULTS: Two hundred physicians (100 GPs and 100 pediatricians), of whom 70% worked in government hospitals, were interviewed. In their experience, 50% of asthma patients had AR and 28% of AR patients had asthma. Among diagnosed asthma patients, 65% of physicians routinely asked for any AR symptoms at every visit. Among diagnosed AR patients, 63% of physicians routinely asked for any asthma symptoms at every visit. In patients with coexisting AR-asthma, 91% of physicians treated both diseases simultaneously, while 6% of physicians treated asthma as a chronic disease but managed AR symptomatically. The most preferred treatment options for patients with AR-asthma were inhaled corticosteroids with intranasal steroids (46% in GPs, 71% in pediatricians). CONCLUSION: The physicians interviewed in Thailand are aware about coexistent asthma-AR. There is a need to increase the awareness further for coexistent AR-asthma and to educate nonspecialist physicians in the proper management of AR-asthma patients.


Assuntos
Humanos , Corticosteroides , Povo Asiático , Asma , Doença Crônica , Comorbidade , Estudos Transversais , Rinite Alérgica , Esteroides , Tailândia
4.
Chinese Medical Journal ; (24): 1264-1271, 2019.
Artigo em Inglês | WPRIM (Pacífico Ocidental) | ID: wpr-772189

RESUMO

BACKGROUND@#In China, the prevalence of allergic rhinitis (AR) and asthma has increased in the past decade. As these two diseases frequently coexist, the Asia-Pacific Survey of Physicians on Asthma and Allergic Rhinitis (ASPAIR) study aimed to assess physicians' beliefs and treatment patterns of coexistent asthma-AR across six Asian countries. This analysis presents the results from China.@*METHODS@#The 200 hospital-based general physicians and pediatricians were interviewed from five cities in China. Physicians were questioned in-person about their knowledge, beliefs and management practices for patients with coexistent asthma-AR.@*RESULTS@#Approximately 70% of the physicians interviewed routinely evaluated their patients with asthma or AR for signs of coexistent disease. While the majority of physicians (>90% of physicians) recognized the increased burden of coexistent asthma-AR vs. one condition alone and that coexistent disease requires additional treatment, most physicians (96%) also believed that patients with coexistent asthma-AR were well managed if either condition alone improved. Similarly, although 71% of physicians selected a combination of intranasal and inhaled corticosteroids as their preferred treatment for coexistent asthma-AR, in line with treatment guidelines, two fifths of physicians indicated that treatment for coexistent disease requires too much medication and that their patients prefer oral medications and a third of physicians believed that corticosteroids should be delayed in children.@*CONCLUSIONS@#This survey demonstrates that physicians interviewed in China have a broad understanding of coexistent asthma-AR and its impact on patients. A holistic approach to patient management with informed decisions regarding patients' overall treatment will benefit patients who suffer from coexistent disease.

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